WO2025040075A1 - Measurement result sending method, measurement result receiving method, and related apparatus - Google Patents

Abstract

The present application discloses a measurement result sending method, a measurement result receiving method, and a related apparatus. The measurement result sending method comprises: measuring one or more reference signal resources; and sending a measurement result of the one or more reference signal resources and mode switching information, wherein the mode switching information is used for instructing a terminal device to switch from a joint mode to a separate mode, or the mode switching information is used for the terminal device requesting to switch from the joint mode to the separate mode, or the mode switching information is used for instructing the terminal device to switch from the separate mode to the joint mode, or the mode switching information is used for the terminal device requesting to switch from the separate mode to the joint mode. Therefore, the terminal device is triggered to switch a TCI mode. A network device does not need to configure, by means of RRC signaling, the terminal device to switch to the separate mode or the common mode, thereby reducing the switching delay, and avoiding affecting the transmission efficiency of the terminal device.

Description

Measurement result sending method, measurement result receiving method and related device

This application claims priority to the Chinese patent application filed with the State Intellectual Property Office on August 22, 2023, with application number 202311063058.6 and application name “Measurement result sending method, measurement result receiving method and related device”, the entire contents of which are incorporated by reference in this application.

Technical Field

The present application relates to the field of communication technology, and in particular to a measurement result sending method, a measurement result receiving method and related devices.

Background Art

The fifth generation mobile communication system (5G) can use high-frequency communication, that is, use ultra-high frequency band (for example, 28GHz) signals to transmit data. A major problem with high-frequency communication is that the signal energy drops sharply with the transmission distance, resulting in a short signal transmission distance. To overcome this problem, high-frequency communication uses analog beam technology, which concentrates the signal energy within a smaller angle range by weighting the antenna array to form a signal similar to a light beam (called an analog beam, or beam for short), thereby increasing the transmission distance. Both network equipment and terminal equipment use beams for transmission.

In the 17th release (release17, R17), the network device can configure two transmission configuration index (TCI) states for the terminal device, namely the downlink/joint TCI state (joint/DL TCI state) and the uplink TCI state (UL TCI state). The network device can configure the TCI mode currently used by the terminal device through radio resource control (RRC) signaling, and the TCI mode can be a joint mode or a separate mode. In the joint mode, the network device indicates the downlink/joint TCI state to the terminal device, and the downlink/joint TCI state can be used for both uplink and downlink transmissions. In the separate mode, the network device indicates the downlink/joint TCI state and the uplink TCI state to the terminal device, and the downlink/joint TCI state is used for downlink transmission, and the UL TCI state is used for uplink transmission.

At present, considering the radiation of electromagnetic waves to the human body, the maximum permissible exposure (MPE) is defined, that is, the MPE that specifies the field strength and power density of transmitters operating within a specific frequency range. When the network device configures the terminal device to use the common mode, the uplink beam and downlink beam used by the terminal device are the same. When the terminal device rotates, the posture changes, or the posture of the handheld terminal device changes, the uplink beam and downlink beam with better signal quality are inconsistent due to the limitation of MPE. If the network device needs to reconfigure the terminal device to use the separation mode through RRC signaling, the configuration delay is large, affecting the transmission efficiency of the terminal device. Therefore, how to quickly switch the terminal device to the separation mode is a problem worth considering.

Summary of the invention

The present application provides a measurement result sending method, a measurement result receiving method and a related device for sending measurement results and mode switching information of one or more reference signal resources, so as to trigger a terminal device to switch from a common mode to a separate mode, or trigger a terminal device to switch from a separate mode to a common mode, or trigger a terminal device to switch a transmission configuration indicator (TCI) mode, or indicate a TCI mode adopted by the terminal device. It is not necessary for a network device to configure a terminal device to switch to a separate mode or a common mode through RRC signaling, thereby reducing the switching delay and avoiding affecting the transmission efficiency of the terminal device.

The first aspect of the present application provides a method for sending measurement results, which is executed by a terminal device. The terminal device may be a device or apparatus with a chip, or a device or apparatus with an integrated circuit, or a chip, chip system, module, or control unit in the aforementioned device or apparatus, which is not specifically limited in the present application. It should be noted that in the present application, when referring to a terminal device, it may refer to the terminal device itself, or to a chip, functional module or integrated circuit in the terminal device that completes the method provided in the present application, which is not specifically limited in the present application. In the first aspect and its possible implementation methods, the method is described as being executed by a terminal device. The method comprises:

The terminal device measures one or more reference signal resources; the terminal device sends the measurement results of the one or more reference signal resources and mode switching information, the mode switching information is used to indicate that the terminal device will switch from a common mode to a separate mode, or the mode switching information is used for the terminal device to request to switch from a common mode to a separate mode; or the mode switching information is used to indicate that the terminal device will switch from a separate mode to a common mode; or the mode switching information is used for the terminal device to request to switch from a separate mode to a common mode; or the mode switching information is used to indicate whether to switch the TCI mode adopted by the terminal device, or the mode switching information is used to indicate the TCI mode adopted by the terminal device, and the TCI mode is either a common mode or a separate mode.

In the above technical solution, the terminal device can report the mode switching information when reporting the measurement result of the reference signal resource, so as to trigger the terminal device to switch from the common mode to the separate mode, or trigger the terminal device to switch from the separate mode to the common mode, or trigger the terminal device to switch the TCI mode, or indicate the TCI mode adopted by the terminal device. This is conducive to realizing the rapid switching of the terminal device to the separate mode, or realizing the rapid switching of the terminal device to the common mode, or realizing the rapid switching of the terminal device to the TCI mode, without the need for the network device to configure the terminal device to switch to the separate mode or the common mode through the radio resource control (RRC) signaling, thereby reducing the RRC reconfiguration delay. Reduce the switching delay to avoid affecting the transmission efficiency of the terminal device.

The second aspect of the present application provides a method for receiving measurement results, which is performed by a network device. The network device may be a device or apparatus with a chip, or a device or apparatus with an integrated circuit, or a chip, chip system, module or control unit in the device or apparatus shown above, which is not specifically limited in this application. It should be noted that in this application, when referring to a network device, it may refer to the network device itself, or to a chip, functional module or integrated circuit in the network device that completes the method provided in this application, which is not specifically limited in this application. In the second aspect and its possible implementation methods, the method is described as being performed by a network device. The method comprises:

A network device receives measurement results and mode switching information of one or more reference signal resources from a terminal device, where the mode switching information is used to indicate that the terminal device will switch from a common mode to a separate mode, or the mode switching information is used for the terminal device to request switching from a common mode to a separate mode; or the mode switching information is used to indicate that the terminal device will switch from a separate mode to a common mode; or the mode switching information is used for the terminal device to request switching from a separate mode to a common mode; or the mode switching information is used to indicate whether to switch a TCI mode adopted by the terminal device; or the mode switching information is used to indicate a TCI mode adopted by the terminal device, and the TCI mode is either a common mode or a separate mode.

In the above technical solution, the network device receives the measurement results and mode switching information of one or more reference signal resources from the terminal device. This is conducive to triggering the terminal device to switch from the common mode to the separate mode, or triggering the terminal device to switch from the separate mode to the common mode, or triggering the terminal device to switch the TCI mode, or indicating the TCI mode adopted by the terminal device. This is conducive to realizing the rapid switching of the terminal device to the separate mode, or realizing the rapid switching of the terminal device to the common mode, or realizing the rapid switching of the terminal device to the TCI mode, without the need for the network device to configure the terminal device to switch to the separate mode or the common mode through RRC signaling, thereby reducing the RRC reconfiguration delay. Reduce the switching delay to avoid affecting the transmission efficiency of the terminal device.

Based on the first aspect or the second aspect, in a possible implementation, the mode switching information is indicated by a first field. In this implementation, the mode switching information is indicated by the first field. For example, the terminal reports measurement information, and the measurement information includes measurement results of one or more reference signal resources and mode switching information. Then the first field can be understood as a field in the measurement information. For another example, the mode switching information is included in the measurement results of one or more reference signal resources, and the first field can be understood as a field in the measurement results.

Based on the first aspect or the second aspect, in a possible implementation, when the value of the first field is the first value, the mode switching information indicates that the terminal device will switch from the common mode to the separate mode, or the mode switching information is used for the terminal device to request to switch from the common mode to the separate mode, or the mode switching information indicates to switch the TCI mode adopted by the terminal device, or the mode switching information indicates that the terminal device adopts the separate mode; or, when the value of the first field is the second value, the mode switching information indicates that the terminal device will switch from the separate mode to the common mode, or the mode switching information is used for the terminal device to request to switch from the separate mode to the common mode, or the mode switching information indicates not to switch the TCI mode adopted by the terminal device, or the mode switching information indicates that the terminal device adopts the common mode. Different meanings are indicated by different values of the first field. Quickly instructing the terminal device to switch to the separate mode or the common mode is achieved.

Based on the first aspect or the second aspect, in a possible implementation manner, when the value of the first field is 0, the first field is used to indicate that the terminal device will switch from the common mode to the separate mode, or is used for the terminal device to request to switch from the common mode to the separate mode, or is used to indicate switching the TCI mode adopted by the terminal device, or is used to indicate that the terminal device adopts the separate mode; when the value of the first field is 1, the first field is used to indicate that the terminal device will switch from the separate mode to the common mode, or is used for the terminal device to request to switch from the separate mode to the common mode, or is used to indicate not to switch the TCI mode adopted by the terminal device, or is used to indicate that the terminal device adopts the common mode;

or,

When the value of the first field is 0, the first field is used to indicate that the terminal device will switch from the separate mode to the common mode, or is used for the terminal device to request to switch from the separate mode to the common mode, or is used to indicate that the TCI mode adopted by the terminal device is not switched, or is used to indicate that the terminal device adopts the common mode; when the value of the first field is 1, the first field is used to indicate that the terminal device will switch from the common mode to the separate mode, or is used for the terminal device to request to switch from the common mode to the separate mode, or is used to indicate to switch the TCI mode adopted by the terminal device, or is used to indicate that the terminal device adopts the separate mode.

In this implementation, the length of the first field and the meaning indicated by the mode switching information indicated by the value of the first field are shown. This will facilitate the implementation of the plan.

Based on the first aspect or the second aspect, in a possible implementation manner, the first value is 0, and the second value is 1; or, the first value is 1, and the second value is 0.

Based on the first aspect or the second aspect, in a possible implementation, the mode switching information is used to indicate that the terminal device will switch from the common mode to the separate mode, or the mode switching information is used for the terminal device to request to switch from the common mode to the separate mode, or the mode switching information is used to indicate that the terminal device adopts the separate mode; the mode switching information is indicated by the second field, and the second field is used to indicate the identifier of one or more uplink transmission configuration indexes (UL TCI) states, or the second field is used to indicate the identifier of one or more reference signals. Optionally, the identifier of the one or more UL TCI states or the identifier of the one or more reference signals are used to indicate the reference information index selected by the terminal device for uplink transmission. It can be understood that the terminal device can determine the reference signal for uplink transmission according to the identifier of one or more UL TCI states or the identifier of one or more reference signals, and then determine the transmit beam information of the uplink transmission. In this implementation, another implementation of the mode switching information is shown. The mode switching information is indicated by the second field. The second field is used to indicate the identifier of one or more UL TCI states, or to indicate the identifier of one or more reference signals. Thereby implicitly indicating or indirectly indicating that the terminal device will switch from the common mode to the separate mode, or the terminal device requests to switch from the common mode to the separate mode, or instructs the terminal device to adopt the separate mode.

Based on the first aspect or the second aspect, in a possible implementation method, each UL TCI state identifier in one or more UL TCI state identifiers is associated with a reference signal resource in one or more reference signal resources; or, each reference signal identifier in one or more reference signal identifiers is associated with a reference signal resource in one or more reference signal resources.

In this implementation, each UL TCI state identifier is associated with one of one or more reference signal resources, or each reference signal identifier is associated with one of one or more reference signal resources. This facilitates subsequent terminal devices to select appropriate UL TCI state identifiers or reference signal identifiers for uplink transmission in combination with the reference signal resources used in the downlink direction.

Based on the first aspect or the second aspect, in a possible implementation manner, the identifier of one or more reference signals is an index of the one or more reference signals in a measurement set; or, the identifier of one or more reference signals is a local identifier of one or more reference signals in a reference signal corresponding to one or more reference signal resources.

In this implementation, two possible implementations of the identification of one or more reference signals are shown, thereby improving the implementation of the enriched solution. In addition, the identification of one or more reference signals is a local identification of one or more reference signals in a reference signal corresponding to one or more reference signal resources. Since the one or more reference signal resources may be less than the number of reference signal resources in the measurement set, the bit length used to represent the local identification may be smaller. Therefore, this implementation is conducive to reducing the signaling overhead generated by the terminal device indicating the identification of the one or more reference signals.

Based on the first aspect or the second aspect, in a possible implementation method, the mode switching information is indicated by one or more third fields, and the one or more third fields correspond to part or all of the reference signal resources in one or more reference signal resources, and each third field is used to indicate whether the reference signal on the reference signal resource corresponding to the third field can be used as a reference signal for uplink transmission.

In this implementation, another implementation of mode switching information is shown. Mode switching information is indicated by one or more third fields. Thereby, the third field indicates whether the reference signal on the reference signal resource corresponding to the third field can be used as a reference signal for uplink transmission. This facilitates subsequent terminal devices to use appropriate uplink transmission reference signals for uplink transmission. For example, the third field indicates that the reference signal on the reference signal resource corresponding to the third field can be used as a reference signal for uplink transmission. Then the terminal device can consider using the reference signal for uplink transmission during subsequent uplink transmission.

Based on the first aspect or the second aspect, in a possible implementation manner, when the value of the third field is 1, it indicates that the reference signal on the reference signal resource corresponding to the third field cannot be used as a reference signal for uplink transmission; when the value of the third field is 0, it indicates that the reference signal on the reference signal resource corresponding to the third field can be used as a reference signal for uplink transmission; or,

When the value of the third field is 0, it indicates that the reference signal on the reference signal resource corresponding to the third field cannot be used as a reference signal for uplink transmission; when the value of the third field is 1, it indicates that the reference signal on the reference signal resource corresponding to the third field can be used as a reference signal for uplink transmission.

In this implementation, the length of the third field and the meanings indicated by various values of the third field are shown, thereby realizing the indication of the mode switching information.

Based on the first aspect, in a possible implementation manner, the method further includes: the terminal device receives a first media access from the network device Control control element (media access control control element, MAC CE) or first downlink control information (downlink control information, DCI), the first MAC CE or the first DCI is used to instruct the terminal device to switch from common mode to separate mode, or, the first MAC CE or the first DCI is used to instruct the terminal device to switch from separate mode to common mode, or, the first MAC CE or the first DCI is used to instruct the terminal device to adopt separate mode, or, the first MAC CE or the first DCI is used to instruct the terminal device to adopt common mode. Thereby triggering the terminal device to switch to separate mode or common mode. Realize the terminal device to quickly switch to separate mode or common mode without the network device reconfiguring the TCI mode of the terminal device through RRC. Reduce RRC reconfiguration delay. This implementation method can be used as an independent aspect and does not depend on the aforementioned first aspect or second aspect.

Based on the second aspect, in a possible implementation, the method further includes: the network device sends a first MAC CE or a first DCI to the terminal device, the first MAC CE or the first DCI is used to instruct the terminal device to switch from the common mode to the separate mode, or the first MAC CE or the first DCI is used to instruct the terminal device to switch from the separate mode to the common mode, or the first MAC CE or the first DCI is used to instruct the terminal device to adopt the separate mode, or the first MAC CE or the first DCI is used to instruct the terminal device to adopt the common mode. Thereby triggering the terminal device to switch to the separate mode. The terminal device is quickly switched to the separate mode without the network device reconfiguring the TCI mode of the terminal device through RRC. The RRC reconfiguration delay is reduced. This implementation can be used as an independent aspect and does not depend on the aforementioned first aspect or second aspect.

Based on the first aspect or the second aspect, in a possible implementation method, the first MAC CE is used to instruct the terminal device to switch from a common mode to a separate mode, or the first MAC CE is used to instruct the terminal device to adopt a separate mode; the first MAC CE is also used to activate one or more TCI states, one or more TCI states corresponding to one or more code points, each code point corresponding to one or two TCI states; at least one of the one or more code points corresponds to two TCI states; and/or, the TCI state corresponding to at least one of the one or more code points includes a UL TCI state.

In this implementation, the first MAC CE may also activate one or more TCI states. At least one of the one or more code points corresponds to two TCI states; and/or, the TCI state corresponding to at least one of the one or more code points includes a UL TCI state. This implicitly indicates that the terminal device switches to a separate mode. This facilitates the subsequent indication of the corresponding TCI state from the activated TCI state, which is used to update the uplink beam adopted by the terminal device. The terminal device is switched to a separate mode. This implementation can be used as an independent aspect and does not depend on the aforementioned first aspect or second aspect.

Based on the first aspect or the second aspect, in a possible implementation, the first MAC CE has at least one Pi field with a value of 1. In this implementation, the value of the Pi field implicitly indicates that the TCI state activated by the first MAC CE has a UL TCI state. This implicitly indicates that the terminal device switches to a detached mode.

Based on the first aspect or the second aspect, in a possible implementation, the first MAC CE has at least one downlink (D)/uplink (U) field with a value of 0. In this implementation, the D/U field indicates that the TCI state activated in the first MAC CE includes the UL TCI state. This implicitly indicates that the terminal device switches to a separate mode. This implementation can be used as an independent aspect and does not depend on the aforementioned first aspect or second aspect.

Based on the first aspect or the second aspect, in a possible implementation, the first MAC CE or the first DCI is used to instruct the terminal device to switch from the separate mode to the common mode; or, the first MAC CE or the first DCI is used to instruct the terminal device to adopt the common mode; the first MAC CE is also used to activate one or more TCI states, the one or more TCI states correspond to one or more code points, each of the one or more code points corresponds to only one TCI state, and the TCI state is a common TCI state. Thus, the terminal device is implicitly instructed to switch to the common mode.

Based on the first aspect or the second aspect, in a possible implementation, the value of all Pi fields in the first MAC CE is 0. In this implementation, the value of the Pi field implicitly indicates that the TCI states activated by the first MAC CE are all common TCI states. Thus, the terminal device is implicitly instructed to switch to the common mode.

Based on the first aspect or the second aspect, in a possible implementation, the value of all D/U fields in the first MAC CE is 1. In this implementation, the D/U field indicates that the TCI states activated in the first MAC CE are all common TCI states. This implicitly indicates that the terminal device switches to the common mode. This implementation can be used as an independent aspect and does not depend on the first aspect or the second aspect.

Based on the first aspect or the second aspect, in a possible implementation, the first MAC CE or the first DCI includes a fourth field, and the fourth field is used to indicate that the terminal device switches from the common mode to the separate mode. In this implementation, the fourth field indicates that the terminal device switches from the common mode to the separate mode. This implementation can be used as an independent aspect and does not depend on the aforementioned first aspect or second aspect.

Based on the first aspect, in a possible implementation manner, the method further includes: the terminal device receives a second DCI from the network device, the second DCI is used to indicate a first code point among the one or more code points; the first code point corresponds to two TCI states; or the first code point The corresponding TCI state includes a UL TCI state; the terminal device performs uplink transmission according to the UL TCI state in the two states corresponding to the first code point, or the terminal device performs uplink transmission according to the UL TCI state included in the TCI state corresponding to the first code point. In this implementation, the terminal device receives the second DCI, and performs uplink transmission through the UL TCI state corresponding to the first code point indicated by the second DCI. Thereby, the terminal device updates the uplink beam and switches the terminal device to a separate mode. This implementation can be used as an independent aspect and does not depend on the aforementioned first aspect or second aspect.

Based on the second aspect, in a possible implementation, the method further includes: the network device sends a second DCI to the terminal device, the second DCI is used to indicate a first code point among one or more code points; the first code point corresponds to two TCI states; or, the TCI state corresponding to the first code point includes a UL TCI state. Thus, the terminal device is instructed to use the UL TCI state corresponding to the first code point for uplink transmission. Thus, the terminal device updates the uplink beam and switches the terminal device to a separation mode. This implementation can be used as an independent aspect and does not depend on the aforementioned first aspect or second aspect.

Based on the first aspect or the second aspect, in a possible implementation, the terminal device performs uplink transmission according to the UL TCI state in the two states corresponding to the first code point, or the terminal device performs uplink transmission according to the UL TCI state included in the TCI state corresponding to the first code point, including: the terminal device performs uplink transmission through the uplink power control parameters and path loss reference signal associated with the UL TCI state. In this implementation, an implementation method for uplink power control parameters and path loss reference signals used by a terminal device for uplink transmission is provided. Thereby, the solution is more comprehensive. This implementation can be used as an independent aspect and does not depend on the aforementioned first aspect or second aspect.

Based on the first aspect, in a possible implementation, when the second field indicates an identifier of a UL TCI state or an identifier of a reference signal; the method further includes: the terminal device performs uplink transmission according to the identifier of the UL TCI state or the identifier of the reference signal. For the second field indicating an identifier of a UL TCI state or an identifier of a reference signal, an implementation method of the terminal device performing uplink transmission is shown. Thereby, the terminal device updates the uplink beam and switches the terminal device to the separation mode.

Based on the first aspect, in a possible implementation, when the first condition is met, the terminal device performs uplink transmission according to the identifier of the UL TCI state or the identifier of the reference signal; the first condition includes one or more of the following: a first period of time has passed after the terminal device sends the mode switching information; a second period of time has passed after the terminal device receives the confirmation message (acknowledgement, ACK) from the network device, ACK is used to indicate that the network device has successfully received the measurement results and mode switching information of one or more reference signal resources; the terminal device receives the first indication information from the network device, the first indication information is used to indicate that the terminal device uses the identifier of the UL TCI state or the identifier of the reference signal for uplink transmission; the terminal device receives the second indication information from the network device, the second indication information is used to indicate that the terminal device switches to the separation mode; or, the terminal device receives the third indication information from the network device, the third indication information is used to indicate the TCI state, and the reference signal identifier in the TCI state is a reference signal identifier on one of the reference signal resources among the one or more reference signal resources. In this implementation, when the first condition is met, the implementation method of the terminal device using the identifier of the UL TCI state or the identifier of the reference signal indicated by the second field for uplink transmission is shown. This enables the terminal device to update the uplink beam and switch to the separation mode.

Based on the first aspect, in a possible implementation, the second field indicates the identifiers of multiple UL TCI states or the identifiers of multiple reference signals; the method further includes: the terminal device receives fourth indication information from the network device, the fourth indication information is used to indicate the use of the identifier of the first UL TCI state or the identifier of the first reference signal, the first UL TCI state belongs to multiple UL TCI states, and the first reference signal belongs to multiple reference signals; the terminal device performs uplink transmission according to the identifier of the first UL TCI state or the identifier of the first reference signal. In this implementation, the terminal device can receive the fourth indication information, and perform uplink transmission through the identifier of the first UL TCI state or the identifier of the first reference signal indicated by the fourth indication information. Thereby, the terminal device updates the uplink beam and switches the terminal device to the separation mode.

Based on the first aspect, in a possible implementation, the uplink transmission includes: the terminal device performs uplink transmission according to the uplink power control parameters and path loss reference signal associated with the first UL TCI state; or, the terminal device performs uplink transmission through the uplink power control parameters and path loss reference signal associated with the TCI state containing the identifier of the first reference signal; or, the terminal device performs uplink transmission using the uplink power control parameters and path loss reference signal configured in the partial bandwidth uplink indication (bandwidth partuplink dedicated, BWP-UplinkDedicated) configured by the network device for the terminal device. In this implementation, an implementation method for uplink power control parameters and path loss reference signals used by the terminal device for uplink transmission is provided. This makes the solution more comprehensive.

Based on the second aspect, in a possible implementation manner, the second field indicates the identifiers of multiple UL TCI states or the identifiers of multiple reference signals; the method also includes: the network device sends a fourth indication information to the terminal device, the fourth indication information is used to indicate the use of the identifier of the first UL TCI state or the identifier of the first reference signal, the first UL TCI state belongs to multiple UL TCI states, and the first reference signal belongs to multiple reference signals. Thus, it is convenient for the terminal device to perform uplink transmission through the identifier of the first UL TCI state or the identifier of the first reference signal indicated by the fourth indication information. Thus, the terminal device updates the uplink beam and switches the terminal device to the separation mode.

Based on the first aspect, in a possible implementation, the second field indicates multiple UL TCI state identifiers or multiple reference signal identifiers; the method further includes: the terminal device uses one of the multiple UL TCI state identifiers or one of the multiple reference signal identifiers for uplink transmission according to a preset rule. Thereby, the terminal device updates the uplink beam and switches the terminal device to the separation mode.

Based on the first aspect, in a possible implementation, the uplink transmission includes: the terminal device performs uplink transmission through the uplink power control parameter and path loss reference signal associated with the UL TCI state; or, the terminal device performs uplink transmission through the uplink power control parameter and path loss reference signal associated with the TCI state containing the identifier of the reference signal; or, the terminal device performs uplink transmission using the uplink power control parameter and path loss reference signal configured in the BWP uplink indication configured by the network device for the terminal device. In this implementation, an implementation method for uplink power control parameters and path loss reference signals used by the terminal device for uplink transmission is provided. This makes the solution more comprehensive and rich.

Based on the first aspect, in a possible implementation, the reference signal resource currently used for transmission by the terminal device is one of one or more reference signal resources; the method further includes: the terminal device performs uplink transmission according to the identifier of the UL TCI state associated with the reference signal resource currently used for transmission by the terminal device or the identifier of the associated reference signal. In this implementation, for the case where the reference signal resource currently used for transmission by the terminal device is one of one or more reference signal resources, an implementation method for the terminal device to perform uplink transmission is shown. Thereby, the terminal device updates the uplink beam and switches the terminal device to the separation mode.

Based on the first aspect, in a possible implementation manner, when the second condition is met, the terminal device performs uplink transmission according to an identifier of a UL TCI state associated with a reference signal resource currently used for transmission by the terminal device or an identifier of an associated reference signal;

The second condition includes at least one of the following: a first duration of time has passed after the terminal device sends the mode switching information; the terminal device receives fifth indication information from the network device, the fifth indication information is used to instruct the terminal device to use the UL TCI state identifier associated with the reference signal resource currently used by the terminal device or the identifier of the associated reference signal for uplink transmission; the terminal device receives second indication information from the network device, the second indication information is used to instruct the terminal device to switch to the separation mode; or, a second duration of time has passed after the terminal device receives an ACK from the network device, the ACK is used to indicate that the network device has successfully received the mode switching information. In this implementation, it is shown that when the second condition is met, the terminal device performs uplink transmission according to the identifier of the UL TCI state associated with the reference signal resource currently used for transmission by the terminal device or the identifier of the associated reference signal. This is conducive to the terminal device selecting a suitable reference signal for uplink transmission under the corresponding conditions.

Based on the first aspect, in a possible implementation, the method further includes: the terminal device receives third indication information from the network device, the third indication information is used to indicate the TCI state, and the identifier of the reference signal in the TCI state is the identifier of the reference signal corresponding to one of the one or more reference signal resources; the terminal device performs uplink transmission according to the identifier of the UL TCI state associated with the reference signal resource or the identifier of the associated reference signal. The terminal device performs uplink transmission. Thereby, the terminal device updates the uplink beam and switches the terminal device to the separation mode.

Based on the second aspect, in a possible implementation, the method further includes: the network device sends third indication information to the terminal device, the third indication information is used to indicate the TCI state, the reference signal identifier in the TCI state is the identifier of the reference signal corresponding to one of the one or more reference signal resources, and the identifier of the UL TCI state associated with the reference signal resource or the identifier of the associated reference signal is used for the terminal device to perform uplink transmission. It is convenient to implement the uplink transmission of the terminal device. Thereby, the terminal device updates the uplink beam and switches the terminal device to the separation mode.

Based on the first aspect, in a possible implementation, the uplink transmission includes: the terminal device performs uplink transmission through the uplink power control parameter and path loss reference signal associated with the UL TCI state; or, the terminal device performs uplink transmission through the uplink power control parameter and path loss reference signal associated with the TCI state containing the identifier of the reference signal, or, the terminal device performs uplink transmission using the uplink power control parameter and path loss reference signal configured in the BWP uplink indication configured by the network device for the terminal device. An implementation method for uplink power control parameters and path loss reference signals used by a terminal device for uplink transmission is provided. This makes the implementation of the solution richer.

Based on the first aspect, in a possible implementation manner, when a third condition is met, the terminal device sends mode switching information to the network device; the third condition includes at least one of the following: a power backoff amount required by a beam corresponding to a reference signal resource currently used for transmission by the terminal device due to MPE restriction exceeds X decibels (dB), and X is greater than or equal to 0;

Among the one or more reference signal resources reported by the terminal device, the power backoff amount required for the beam corresponding to at least one reference signal resource exceeds XdB due to MPE restriction;

The beam corresponding to the reference signal resource currently used by the terminal device for transmission cannot be used for uplink transmission due to MPE restrictions;

Among the one or more reference signal resources reported by the terminal device, at least one reference signal resource cannot be used for uplink transmission due to MPE restrictions;

The beam corresponding to the reference signal resource currently used by the terminal device for transmission can only be used for downlink transmission but not for uplink transmission; or,

Among the one or more reference signal resources reported by the terminal device, at least one reference signal resource can only be used for downlink transmission but cannot be used for uplink transmission.

It can be seen that the above shows a possible condition for triggering the terminal device to send mode switching information, which is conducive to the terminal device to reasonably request switching to the separation mode under corresponding conditions, or to switch the terminal device to the separation mode, thereby improving the transmission performance of the terminal device.

Based on the first aspect, in a possible implementation manner, the one or more reference signal resources are reference signal resources for the terminal device to report a measurement result.

Based on the first aspect, in a possible implementation manner, the method further includes: the terminal device receives first configuration information from the network device, the first configuration information is used to configure the terminal device to report mode switching information, so that the terminal device reports the mode switching information when reporting the measurement result.

Based on the second aspect, in a possible implementation, the method further includes: the network device sends first configuration information to the terminal device, the first configuration information is used to configure the terminal device to report mode switching information, so that the terminal device reports the mode switching information when reporting the measurement result.

Based on the first aspect or the second aspect, in a possible implementation manner, the first configuration information is further used to configure the terminal device to report measurement results of one or more reference signal resources.

Based on the first aspect, in a possible implementation method, the method also includes: the terminal device receives a second DCI from the network device, the second DCI is used to indicate a first code point among one or more code points; the first code point corresponds to a common TCI state, or the TCI state corresponding to the first code point includes a common TCI state; the terminal device performs uplink and downlink transmission according to the common TCI state in the TCI state corresponding to the first code point.

Based on the second aspect, in a possible implementation method, the method also includes: the network device sends a second DCI to the terminal device, the second DCI is used to indicate a first code point among one or more code points; the first code point corresponds to a common TCI state, or the TCI state corresponding to the first code point includes a common TCI state.

The third aspect of the present application provides an information sending method, which is executed by a terminal device. The terminal device may be a device or apparatus with a chip, or a device or apparatus with an integrated circuit, or a chip, chip system, module, or control unit in the aforementioned device or apparatus, which is not specifically limited in the present application. It should be noted that in the present application, when referring to a terminal device, it may refer to the terminal device itself, or to a chip, functional module or integrated circuit in the terminal device that completes the method provided by the present application, which is not specifically limited in the present application. In the third aspect and its possible implementation methods, the method is described as being executed by a terminal device. The method comprises:

The terminal device determines mode switching information, where the mode switching information is used to indicate that the terminal device will switch from a common mode to a separate mode, or the mode switching information is used by the terminal device to request switching from a common mode to a separate mode, or the mode switching information is used to indicate that the terminal device will switch from a separate mode to a common mode, or the mode switching information is used by the terminal device to request switching from a separate mode to a common mode, or the mode switching information is used to indicate whether to switch the TCI mode adopted by the terminal device, or the mode switching information is used to indicate the TCI mode adopted by the terminal device, and the TCI mode is either a common mode or a separate mode; then, the terminal device sends the mode switching information.

In the above technical solution, the terminal device sends mode switching information. The mode switching information is used to indicate that the terminal device will switch from the common mode to the separate mode, or the mode switching information is used for the terminal device to request to switch from the common mode to the separate mode. This is conducive to triggering the terminal device to switch from the common mode to the separate mode, or the mode switching information is used to indicate that the terminal device will switch from the separate mode to the common mode, or the mode switching information is used for the terminal device to request to switch from the separate mode to the common mode, or the mode switching information is used to indicate whether to switch the TCI mode adopted by the terminal device, or the mode switching information is used to indicate the TCI mode adopted by the terminal device, and the TCI mode is the common mode or the separate mode. This is conducive to realizing the terminal device to quickly switch to the separate mode or the common mode, without the need for the network device to configure the terminal device to switch to the separate mode or the common mode through RRC signaling, thereby reducing the RRC reconfiguration delay. Reduce the switching delay to avoid affecting the transmission efficiency of the terminal device.

The fourth aspect of the present application provides an information receiving method, which is executed by a network device. The network device may be a device or apparatus with a chip, or a device or apparatus with an integrated circuit, or a chip, chip system, module or control unit in the aforementioned device or apparatus, which is not specifically limited in the present application. It should be noted that in the present application, when referring to a network device, it may refer to the network device itself, or to a chip, functional module or integrated circuit in the network device that completes the method provided in the present application, which is not specifically limited in the present application. In the fourth aspect and its possible implementation methods, the method is described as being executed by a network device. The method comprises:

The network device receives mode switching information from the terminal device, where the mode switching information is used to indicate that the terminal device will switch from a common mode to a separate mode, or the mode switching information is used for the terminal device to request switching from a common mode to a separate mode, or the mode switching information is used to indicate that the terminal device will switch from a separate mode to a common mode, or the mode switching information is used for the terminal device to request switching from a separate mode to a common mode, or the mode switching information is used to indicate whether to switch a TCI mode adopted by the terminal device, or the mode switching information is used to indicate a TCI mode adopted by the terminal device, and the TCI mode is either a common mode or a separate mode.

In the above technical solution, the network device receives the mode switching information from the terminal device. This is conducive to triggering the terminal device to switch from the common mode to the separate mode or the common mode. This is conducive to realizing the terminal device to quickly switch to the separate mode or the common mode, without the need for the network device to configure the terminal device to switch to the separate mode or the common mode through RRC signaling, thereby reducing the RRC reconfiguration delay. The switching delay is reduced to avoid affecting the transmission efficiency of the terminal device.

Based on the third aspect or the fourth aspect, in a possible implementation, the mode switching information includes one or more UL TCI state identifiers, and the one or more UL TCI state identifiers are used to indicate the reference information index of the uplink transmission of the terminal device; or, the mode switching information includes one or more reference signal identifiers, and the one or more reference signal identifiers are used to indicate the reference information index of the uplink transmission of the terminal device. The implementation implicitly indicates or indirectly indicates that the terminal device will switch from the common mode to the separate mode through the identifiers of one or more UL TCI states or one or more reference signals, or that the terminal device requests to switch from the common mode to the separate mode.

Based on the third aspect or the fourth aspect, in a possible implementation manner, the mode switching information is carried in the first signaling.

Based on the third aspect or the fourth aspect, in a possible implementation method, the first signaling includes one or more reference signal resource identifiers, or includes one or more TCI state identifiers, and the one or more reference signal resource identifiers or one or more TCI state identifiers are used to indicate the reference information index of the downlink transmission of the terminal device.

Based on the third aspect or the fourth aspect, in a possible implementation, each UL TCI state identifier in one or more UL TCI state identifiers is associated with a reference signal resource identifier in one or more reference signal resource identifiers, or is associated with a TCI state identifier in one or more TCI state identifiers; or, each reference signal identifier in one or more reference signal identifiers is associated with a reference signal resource identifier in one or more reference signal resource identifiers, or is associated with a TCI state identifier in one or more TCI state identifiers. In this implementation, each UL TCI state identifier is associated with a reference signal resource or a TCI state identifier, or each reference signal identifier is associated with a reference signal resource or a TCI state identifier. This is conducive to the subsequent terminal device selecting an appropriate UL TCI state identifier or reference signal identifier for uplink transmission in combination with the reference signal resource used in the downlink direction.

Based on the third aspect, in a possible implementation, the method further includes: the terminal device receives a first MAC CE or a first DCI from the network device, the first MAC CE or the first DCI is used to instruct the terminal device to switch from the common mode to the separate mode, or the first MAC CE or the first DCI is used to instruct the terminal device to switch from the separate mode to the common mode, or the first MAC CE or the first DCI is used to instruct the terminal device to adopt the separate mode, or the first MAC CE or the first DCI is used to instruct the terminal device to adopt the common mode. Thereby triggering the terminal device to switch to the separate mode or the common mode. The terminal device is quickly switched to the separate mode or the common mode without the network device reconfiguring the TCI mode of the terminal device through the RRC. The RRC reconfiguration delay is reduced. This implementation can be used as an independent aspect and does not depend on the aforementioned third aspect or fourth aspect.

Based on the fourth aspect, in a possible implementation, the method further includes: the network device sends a first MAC CE or a first DCI to the terminal device, the first MAC CE or the first DCI is used to instruct the terminal device to switch from the common mode to the separate mode, or the first MAC CE or the first DCI is used to instruct the terminal device to switch from the separate mode to the common mode, or the first MAC CE or the first DCI is used to instruct the terminal device to adopt the separate mode, or the first MAC CE or the first DCI is used to instruct the terminal device to adopt the common mode. The terminal device is quickly switched to the separate mode or the common mode without the network device reconfiguring the TCI mode of the terminal device through RRC. The RRC reconfiguration delay is reduced. This implementation can be used as an independent aspect and does not depend on the third aspect or the fourth aspect mentioned above.

Based on the third aspect or the fourth aspect, in a possible implementation manner, the first MAC CE is used to instruct the terminal device to switch from the common mode to the separate mode, or the first MAC CE is used to instruct the terminal device to adopt the separate mode; the first MAC CE is also used to activate one or more TCI states, one or more TCI states corresponding to one or more code points, each code point corresponding to one or two TCI states; one or At least one TCI code point among multiple code points corresponds to two TCI states; and/or, at least one TCI code point among one or more code points corresponds to a TCI state that includes a UL TCI state. In this implementation, the first MAC CE may also activate one or more TCI states. At least one code point among one or more code points corresponds to two TCI states; and/or, at least one code point among one or more code points corresponds to a TCI state that includes a UL TCI state. This implicitly indicates that the terminal device switches to a separate mode. This facilitates the subsequent indication of the corresponding TCI state from the activated TCI state, which is used to update the uplink beam adopted by the terminal device. The terminal device is switched to a separate mode. This implementation can be used as an independent aspect and does not depend on the aforementioned third aspect or fourth aspect.

Based on the third aspect or the fourth aspect, in a possible implementation, the first MAC CE has at least one Pi field with a value of 1. In this implementation, the value of the Pi field implicitly indicates that the TCI state activated by the first MAC CE has a UL TCI state. This implicitly indicates that the terminal device switches to a separation mode. This implementation can be used as an independent aspect and does not depend on the third aspect or the fourth aspect.

Based on the third aspect or the fourth aspect, in a possible implementation, at least one D/U field in the first MAC CE has a value of 0. In this implementation, the TCI state activated in the first MAC CE is indicated by the D/U field, including the UL TCI state. This implicitly indicates that the terminal device switches to a separate mode. This implementation can be used as an independent aspect and does not depend on the third aspect or the fourth aspect.

Based on the third aspect or the fourth aspect, in a possible implementation, the first MAC CE or the first DCI is used to instruct the terminal device to switch from the separate mode to the common mode; or, the first MAC CE or the first DCI is used to instruct the terminal device to adopt the common mode; the first MAC CE is also used to activate one or more TCI states, the one or more TCI states correspond to one or more code points, each of the one or more code points corresponds to only one TCI state, and the TCI state is a common TCI state. Thus, the terminal device is implicitly instructed to switch to the common mode.

Based on the third aspect or the fourth aspect, in a possible implementation, the value of all Pi fields in the first MAC CE is 0. In this implementation, the value of the Pi field implicitly indicates that the TCI states activated by the first MAC CE are all common TCI states. This implicitly indicates that the terminal device switches to the common mode.

Based on the third aspect or the fourth aspect, in a possible implementation, the value of all D/U fields in the first MAC CE is 1. In this implementation, the D/U field indicates that the TCI states activated in the first MAC CE are all common TCI states. This implicitly indicates that the terminal device switches to the common mode. This implementation can be used as an independent aspect and does not depend on the third aspect or the fourth aspect.

Based on the third aspect or the fourth aspect, in a possible implementation, the first MAC CE or the first DCI includes a first field, and the first field is used to indicate that the terminal device switches from the common mode to the separate mode. In this implementation, the first field indicates that the terminal device switches from the common mode to the separate mode. This implementation can be used as an independent aspect and does not depend on the third aspect or the fourth aspect.

Based on the third aspect, in a possible implementation, the method further includes: the terminal device receives a second DCI from the network device, the second DCI is used to indicate a first code point among one or more code points; the first code point corresponds to two TCI states; or, the TCI state corresponding to the first code point includes a UL TCI state; the terminal device performs uplink transmission according to the UL TCI state among the two states corresponding to the first code point, or, the terminal device performs uplink transmission according to the UL TCI state among the TCI states corresponding to the first code point. In this implementation, the terminal device receives the second DCI, and performs uplink transmission through the UL TCI state corresponding to the first code point indicated by the second DCI. Thereby, the terminal device updates the uplink beam and switches the terminal device to the separation mode. This implementation can be used as an independent aspect and does not depend on the aforementioned third aspect or fourth aspect.

Based on the fourth aspect, in a possible implementation, the method further includes: the network device sends a second DCI to the terminal device, the second DCI is used to indicate a first code point among one or more code points; the first code point corresponds to two TCI states; or, the TCI state corresponding to the first code point includes a UL TCI state. Thereby instructing the terminal device to use the UL TCI state corresponding to the first code point for uplink transmission. Thereby enabling the terminal device to update the uplink beam and enable the terminal device to switch to the separation mode. This implementation can be used as an independent aspect and does not depend on the aforementioned third aspect or fourth aspect.

Based on the third aspect, in a possible implementation, the terminal device performs uplink transmission according to the UL TCI state in the two states corresponding to the first code point, or the terminal device performs uplink transmission according to the UL TCI state included in the TCI state corresponding to the first code point, including: the terminal device performs uplink transmission through the uplink power control parameters and path loss reference signal associated with the UL TCI state. In this implementation, an implementation method for uplink power control parameters and path loss reference signals used by a terminal device for uplink transmission is provided. Thereby, the solution is more comprehensive. This implementation can be used as an independent aspect and does not depend on the aforementioned third aspect or fourth aspect.

Based on the third aspect, in a possible implementation, when the mode switching information includes a UL TCI state identifier, or includes a reference signal identifier; the method also includes: the terminal device performs uplink transmission according to the UL TCI state identifier or the reference signal identifier.

Based on the third aspect, in a possible implementation, when the first condition is met, the terminal device performs uplink transmission according to the identifier of the UL TCI state or the identifier of the reference signal; the first condition includes one or more of the following: a first duration of time has passed after the terminal device sends the mode switching information; a second duration of time has passed after the terminal device receives an ACK from the network device, the ACK is used to indicate that the network device has successfully received the mode switching information; the terminal device receives first indication information from the network device, the first indication information is used to indicate that the terminal device uses the identifier of the UL TCI state or the identifier of the reference signal for uplink transmission; the terminal device receives second indication information from the network device, the second indication information is used to indicate that the terminal device switches to the separation mode; or, the terminal device receives third indication information from the network device, the third indication information is used to indicate the TCI state, and the reference signal identifier in the TCI state is a reference signal identifier corresponding to one of the reference signal resources in one or more reference signal resources. In this implementation, for the case where the mode switching information includes an identifier of a UL TCI state, or includes an identifier of a reference signal, an implementation method for the terminal device to perform uplink transmission is shown. Thereby, the terminal device updates the uplink beam and switches the terminal device to the separation mode.

Based on the third aspect, in a possible implementation, the uplink transmission includes: the terminal device performs uplink transmission through the uplink power control parameters and path loss reference signal associated with the UL TCI state; or, the terminal device performs uplink transmission through the uplink power control parameters and path loss reference signal associated with the TCI state containing the identifier of the reference signal; or, the terminal device performs uplink transmission using the uplink power control parameters and path loss reference signal configured in the BWP uplink indication configured by the network device for the terminal device. In this implementation, an implementation method for uplink power control parameters and path loss reference signals used by the terminal device for uplink transmission is provided. This makes the solution more comprehensive and rich.

Based on the third aspect, in a possible implementation, the mode switching information includes identifiers of multiple UL TCI states, or identifiers of multiple reference signals; the method further includes: the terminal device receives fourth indication information from the network device, the fourth indication information is used to indicate the use of the identifier of the first UL TCI state or the identifier of the first reference signal, the first UL TCI state belongs to multiple UL TCI states, and the first reference signal belongs to multiple reference signals; the terminal device performs uplink transmission according to the identifier of the first UL TCI state or the identifier of the first reference signal. This facilitates the terminal device to perform uplink transmission through the identifier of the first UL TCI state or the identifier of the first reference signal indicated by the fourth indication information. This enables the terminal device to update the uplink beam and switch the terminal device to the separation mode.

Based on the fourth aspect, in a possible implementation, the mode switching information includes identifiers of multiple UL TCI states, or identifiers of multiple reference signals; the method further includes: the network device sends fourth indication information to the terminal device, the fourth indication information is used to indicate the use of the identifier of the first UL TCI state or the identifier of the first reference signal, the first UL TCI state belongs to multiple UL TCI states, and the first reference signal belongs to multiple reference signals. This facilitates the terminal device to perform uplink transmission through the identifier of the first UL TCI state or the identifier of the first reference signal indicated by the fourth indication information. This enables the terminal device to update the uplink beam and switch the terminal device to the separation mode.

Based on the third aspect, in a possible implementation, the mode switching information includes multiple UL TCI state identifiers, or includes multiple reference signal identifiers; the method further includes: the terminal device uses one of the multiple UL TCI state identifiers or one of the multiple reference signal identifiers for uplink transmission according to a preset rule. Thereby, the terminal device updates the uplink beam and switches the terminal device to the separation mode.

Based on the third aspect, in a possible implementation manner, the reference signal resource currently used for transmission by the terminal device is one of one or more reference signal resources, or the TCI state currently used by the terminal device is one of the TCI states corresponding to one or more TCI state identifiers; the method also includes: the terminal device performs uplink transmission according to the reference signal resource currently used by the terminal device or the identifier of the UL TCI state associated with the TCI state or the identifier of the associated reference signal.

Based on the third aspect, in a possible implementation, when the second condition is met, the terminal device performs uplink transmission according to the reference signal resource currently used by the terminal device or the identifier of the UL TCI state associated with the TCI state or the identifier of the associated reference signal; the second condition includes one or more of the following: after the first time period has passed after the terminal device sends the mode switching information; the terminal device receives the fifth indication information from the network device, the fifth indication information is used to indicate that the terminal device uses the reference signal resource currently used by the terminal device or the identifier of the UL TCI state associated with the TCI state or the identifier of the associated reference signal for uplink transmission; the terminal device receives the second indication information from the network device, the second indication information is used to indicate that the terminal device switches to the separation mode; or, after the second time period has passed after the terminal device receives the ACK from the network device, the ACK is used to indicate that the network device successfully receives the mode switching information. In this implementation, for the case where the reference signal resource currently used for transmission by the terminal device is one of one or more reference signal resources, the implementation method of the terminal device performing uplink transmission is shown. Thereby, the terminal device updates the uplink beam and switches the terminal device to the separation mode.

Based on the third aspect, in a possible implementation manner, the method further includes: the terminal device receives third indication information from the network device, the third indication information is used to indicate the TCI state, and the identifier of the reference signal in the TCI state is one of the one or more reference signal resources. The terminal device performs uplink transmission according to the identifier of the UL TCI state associated with the reference signal resource or the identifier of the associated reference signal. The terminal device performs uplink transmission. Thus, the terminal device updates the uplink beam and switches the terminal device to the separation mode.

Based on the fourth aspect, in a possible implementation, the method further includes: the network device sends third indication information to the terminal device, the third indication information is used to indicate the TCI state, the reference signal identifier in the TCI state is the identifier of the reference signal corresponding to one of the one or more reference signal resources, and the identifier of the UL TCI state associated with the reference signal resource or the identifier of the associated reference signal is used for the terminal device to perform uplink transmission. It is convenient to implement the uplink transmission of the terminal device. Thereby, the terminal device updates the uplink beam and switches the terminal device to the separation mode.

Based on the third aspect or the fourth aspect, in a possible implementation, the first signaling is a power headroom report media access control control element (PHR MAC CE), and there is an R field in each byte where the field for indicating the reference signal resource in the PHR MAC CE is located, and the R field is used to indicate whether the reference signal resource is associated with the UL TCI state identifier or the reference signal identifier. In this implementation, the PHR MAC CE reports the mode switching information to provide a bearer without defining new signaling. Furthermore, the R field in the PHR MAC CE can also indicate whether the reference signal resource is associated with the UL TCI state identifier or the reference signal identifier. Thereby, the indication of the UL TCI state identifier or the reference signal identifier associated with each reference signal resource is achieved.

Based on the third aspect or the fourth aspect, in a possible implementation method, when the value of the R field is 1, it indicates that the reference signal resource is associated with the UL TCI state identifier or the reference signal identifier; when the value of the R field is 0, it indicates that the reference signal resource is not associated with the UL TCI state identifier or the reference signal identifier.

Based on the third aspect or the fourth aspect, in a possible implementation, the first signaling is a PHR MAC CE, and the Pi field in the PHR MAC CE is used to indicate whether the reference signal resource i in one or more reference signal resources is associated with the identifier of the UL TCI state or the identifier of the reference signal. In this implementation, a bearer is provided by reporting mode switching information through the PHR MAC CE, without defining new signaling. Furthermore, the Pi field in the PHR MAC CE can also be used to indicate whether the reference signal resource i is associated with the identifier of the UL TCI state or the identifier of the reference signal. Thereby, the indication of the identifier of the UL TCI state or the identifier of the reference signal associated with each reference signal resource is realized.

Based on the third aspect or the fourth aspect, in a possible implementation method, when the value of the Pi field is 1, it indicates that the reference signal resource i is associated with the UL TCI state identifier or the reference signal identifier; when the value of the Pi field is 0, it indicates that the reference signal resource i is not associated with the UL TCI state identifier or the reference signal identifier; or, when the value of the Pi field is 0, it indicates that the reference signal resource i is associated with the UL TCI state identifier or the reference signal identifier; when the value of the Pi field is 1, it indicates that the reference signal resource i is not associated with the UL TCI state identifier or the reference signal identifier.

Based on the third aspect or the fourth aspect, in a possible implementation method, the first signaling also includes a second field, and the second field is used to indicate whether the first signaling includes a UL TCI status identifier or a reference signal identifier.

Based on the third aspect or the fourth aspect, in a possible implementation, the first signaling further includes a third field, and the third field is used to trigger the terminal device to switch from the common mode to the separate mode. Thus, the terminal device is displayed to indicate that it is switched to the separate mode. There is no need for the network device to configure the terminal device to switch to the separate mode through RRC signaling, thereby reducing the switching delay and avoiding affecting the transmission efficiency of the terminal device.

Based on the third aspect or the fourth aspect, in a possible implementation method, the first signaling also includes one or more fourth fields, and the one or more fourth fields correspond to one or more reference signal resource identifiers, or the one or more fourth fields correspond to one or more TCI state identifiers; each fourth field is used to indicate whether the reference signal resource identifier or TCI state identifier corresponding to the fourth field has an associated UL TCI state identifier or an associated reference signal identifier.

Based on the third aspect, in a possible implementation manner, when a first condition is met, the terminal device sends mode switching information to the network device; the first condition includes at least one of the following: a power backoff amount required by a beam corresponding to a reference signal resource currently used for transmission by the terminal device due to MPE restriction exceeds X decibels (dB), and X is greater than or equal to 0;

Among the one or more reference signal resources reported by the terminal device, the power backoff amount required for the beam corresponding to at least one reference signal resource exceeds XdB due to MPE restriction;

The beam corresponding to the reference signal resource currently used by the terminal device for transmission cannot be used for uplink transmission due to MPE restrictions;

Among the one or more reference signal resources reported by the terminal device, at least one reference signal resource cannot be used for uplink transmission due to MPE restrictions;

The beam corresponding to the reference signal resource currently used by the terminal device for transmission can only be used for downlink transmission but not for uplink transmission; or,

Among the one or more reference signal resources reported by the terminal device, at least one reference signal resource can only be used for downlink transmission but cannot be used for uplink transmission.

It can be seen that the above shows a possible condition for triggering the terminal device to send mode switching information, which is conducive to the terminal device to reasonably request switching to the separation mode under corresponding conditions, or to switch the terminal device to the separation mode, thereby improving the transmission performance of the terminal device.

Based on the third aspect, in a possible implementation method, the one or more reference signal resources are reference signal resources for reporting measurement results of the terminal device, or reference signal resources reported in the PHR MAC CE, or any reference signal resource in a configured reference signal resource set.

Based on the third aspect, in a possible implementation method, the transceiver module is also used to: receive a second DCI from a network device, the second DCI is used to indicate a first code point among one or more code points; the first code point corresponds to a common TCI state, or the TCI state corresponding to the first code point includes a common TCI state; and perform uplink and downlink transmission according to the common TCI state in the TCI state corresponding to the first code point.

Based on the fourth aspect, in a possible implementation method, the transceiver module is also used to: send a second DCI to the terminal device, the second DCI is used to indicate a first code point among one or more code points; the first code point corresponds to a common TCI state, or the TCI state corresponding to the first code point includes a common TCI state.

The fifth aspect of the present application provides a first communication device, which may be a device or apparatus with a chip, or a device or apparatus with an integrated circuit, or a chip, chip system, module or control unit in the aforementioned device or apparatus, which is not specifically limited in the present application. It should be noted that in the present application, when referring to the first communication device, it may refer to the first communication device itself, or to a chip, functional module or integrated circuit in the first communication device that completes the method provided in the present application, etc., which is not specifically limited in the present application. In the fifth aspect and its possible implementation methods, the first communication device is used as an example for description. Including:

A processing module, configured to measure one or more reference signal resources;

A transceiver module is used to send the measurement results and mode switching information of the one or more reference signal resources, wherein the mode switching information is used to indicate that the first communication device will switch from a common mode to a separate mode, or the mode switching information is used for the first communication device to request to switch from a common mode to a separate mode; or the mode switching information is used to indicate that the first communication device will switch from a separate mode to a common mode; or the mode switching information is used for the first communication device to request to switch from a separate mode to a common mode; or the mode switching information is used to indicate whether to switch the TCI mode adopted by the first communication device, or the mode switching information is used to indicate the TCI mode adopted by the first communication device, and the TCI mode is either a common mode or a separate mode.

The sixth aspect of the present application provides a second communication device, which may be a device or apparatus with a chip, or a device or apparatus with an integrated circuit, or a chip, chip system, module or control unit in the aforementioned device or apparatus, which is not specifically limited in the present application. It should be noted that in the present application, when referring to the first communication device, it may refer to the second communication device itself, or to a chip, functional module or integrated circuit in the second communication device that completes the method provided in the present application, etc., which is not specifically limited in the present application. In the sixth aspect and its possible implementation methods, the second communication device is taken as an example for description. Including:

A transceiver module is used to receive measurement results and mode switching information of one or more reference signal resources from a first communication device, where the mode switching information is used to indicate that the first communication device will switch from a common mode to a separate mode, or the mode switching information is used for the first communication device to request to switch from a common mode to a separate mode; or the mode switching information is used to indicate that the first communication device will switch from a separate mode to a common mode; or the mode switching information is used for the first communication device to request to switch from a separate mode to a common mode; or the mode switching information is used to indicate whether to switch a TCI mode adopted by the first communication device; or the mode switching information is used to indicate a TCI mode adopted by the first communication device, and the TCI mode is either a common mode or a separate mode.

Based on the fifth aspect or the sixth aspect, in a possible implementation manner, the mode switching information is indicated by a first field.

Based on the fifth aspect or the sixth aspect, in a possible implementation method, when the value of the first field is a first value, the mode switching information indicates that the first communication device will switch from the common mode to the separate mode, or the mode switching information is used by the first communication device to request to switch from the common mode to the separate mode, or the mode switching information indicates switching the TCI mode adopted by the first communication device, or the mode switching information indicates that the first communication device adopts the separate mode; or, when the value of the first field is a second value, the mode switching information indicates that the first communication device will switch from the separate mode to the common mode, or the mode switching information is used by the first communication device to request to switch from the separate mode to the common mode, or the mode switching information indicates not to switch the TCI mode adopted by the first communication device, or the mode switching information indicates that the first communication device adopts the common mode.

Based on the fifth aspect or the sixth aspect, in a possible implementation, when the value of the first field is 0, the first field is used to indicate The first communication device will switch from the common mode to the separate mode, or is used for the first communication device to request to switch from the common mode to the separate mode, or is used to indicate switching of the TCI mode adopted by the first communication device, or is used to indicate that the first communication device adopts the separate mode; when the value of the first field is 1, the first field is used to indicate that the first communication device will switch from the separate mode to the common mode, or is used for the first communication device to request to switch from the separate mode to the common mode, or is used to indicate not to switch the TCI mode adopted by the first communication device, or is used to indicate that the first communication device adopts the common mode;

or,

When the value of the first field is 0, the first field is used to indicate that the first communication device will switch from the separate mode to the common mode, or is used for the first communication device to request to switch from the separate mode to the common mode, or is used to indicate that the TCI mode adopted by the first communication device is not switched, or is used to indicate that the first communication device adopts the common mode; when the value of the first field is 1, the first field is used to indicate that the first communication device will switch from the common mode to the separate mode, or is used for the first communication device to request to switch from the common mode to the separate mode, or is used to indicate to switch the TCI mode adopted by the first communication device, or is used to indicate that the first communication device adopts the separate mode.

Based on the first aspect or the second aspect, in a possible implementation manner, the first value is 0, and the second value is 1; or, the first value is 1, and the second value is 0.

Based on the fifth aspect or the sixth aspect, in a possible implementation, the mode switching information is used to indicate that the first communication device will switch from the common mode to the separate mode, or the mode switching information is used by the first communication device to request to switch from the common mode to the separate mode, or the mode switching information is used to indicate that the first communication device adopts the separate mode; the mode switching information is indicated by a second field, and the second field is used to indicate one or more UL TCI state identifiers, or the second field is used to indicate one or more reference signal identifiers. Optionally, one or more UL TCI state identifiers or one or more reference signal identifiers are used to indicate the reference information index selected by the first communication device for uplink transmission.

Based on the fifth aspect or the sixth aspect, in a possible implementation method, each UL TCI state identifier in one or more UL TCI state identifiers is associated with a reference signal resource in one or more reference signal resources; or, each reference signal identifier in one or more reference signal identifiers is associated with a reference signal resource in one or more reference signal resources.

Based on the fifth aspect or the sixth aspect, in a possible implementation method, the identifier of one or more reference signals is an index of the one or more reference signals in the measurement set; or, the identifier of one or more reference signals is a local identifier of one or more reference signals in the reference signals corresponding to one or more reference signal resources.

Based on the fifth aspect or the sixth aspect, in a possible implementation method, the mode switching information is indicated by one or more third fields, and the one or more third fields correspond to part or all of the reference signal resources in one or more reference signal resources, and each third field is used to indicate whether the reference signal on the reference signal resource corresponding to the third field can be used as a reference signal for uplink transmission.

Based on the fifth aspect or the sixth aspect, in a possible implementation manner, when the value of the third field is 1, it indicates that the reference signal on the reference signal resource corresponding to the third field cannot be used as a reference signal for uplink transmission; when the value of the third field is 0, it indicates that the reference signal on the reference signal resource corresponding to the third field can be used as a reference signal for uplink transmission; or,

When the value of the third field is 0, it indicates that the reference signal on the reference signal resource corresponding to the third field cannot be used as a reference signal for uplink transmission; when the value of the third field is 1, it indicates that the reference signal on the reference signal resource corresponding to the third field can be used as a reference signal for uplink transmission.

Based on the fifth aspect, in a possible implementation method, the transceiver module is also used to: receive a first MAC CE or a first DCI from the second communication device, the first MAC CE or the first DCI is used to instruct the first communication device to switch from a common mode to a separate mode, or, the first MAC CE or the first DCI is used to instruct the first communication device to switch from a separate mode to a common mode, or, the first MAC CE or the first DCI is used to instruct the first communication device to adopt a separate mode, or, the first MAC CE or the first DCI is used to instruct the first communication device to adopt a common mode.

Based on the sixth aspect, in a possible implementation method, the transceiver module is also used to: send a first MAC CE or a first DCI to the first communication device, the first MAC CE or the first DCI is used to instruct the first communication device to switch from a common mode to a separate mode, or, the first MAC CE or the first DCI is used to instruct the first communication device to switch from a separate mode to a common mode, or, the first MAC CE or the first DCI is used to instruct the first communication device to adopt a separate mode, or, the first MAC CE or the first DCI is used to instruct the first communication device to adopt a common mode.

Based on the fifth aspect or the sixth aspect, in a possible implementation manner, the first MAC CE is used to instruct the first communication device to switch from the common mode to the separate mode, or the first MAC CE is used to instruct the first communication device to adopt the separate mode; the first MAC CE is further used to activate one or more TCI states, the one or more TCI states correspond to one or more code points, and each code point corresponds to one or two TCI states; At least one of the one or more code points corresponds to two TCI states; and/or at least one of the one or more code points corresponds to a TCI state including a UL TCI state.

Based on the fifth aspect or the sixth aspect, in a possible implementation method, there is at least one Pi field in the first MAC CE whose value is 1.

Based on the fifth aspect or the sixth aspect, in a possible implementation method, there is at least one D/U field in the first MAC CE whose value is 0.

Based on the fifth aspect or the sixth aspect, in a possible implementation method, the first MAC CE or the first DCI is used to instruct the first communication device to switch from a separate mode to a common mode; or, the first MAC CE or the first DCI is used to instruct the first communication device to adopt a common mode; the first MAC CE is also used to activate one or more TCI states, the one or more TCI states corresponding to one or more code points, each of the one or more code points corresponds to only one TCI state, and the TCI state is a common TCI state.

Based on the fifth aspect or the sixth aspect, in a possible implementation method, the value of all Pi fields in the first MAC CE is 0.

Based on the fifth aspect or the sixth aspect, in a possible implementation method, the value of all D/U fields in the first MAC CE is 1.

Based on the fifth aspect or the sixth aspect, in a possible implementation, the first MAC CE or the first DCI includes a fourth field, and the fourth field is used to indicate that the first communication device switches from a common mode to a separate mode.

Based on the fifth aspect, in a possible implementation method, the transceiver module is also used to receive a second DCI from a second communication device, the second DCI is used to indicate a first code point among one or more code points; the first code point corresponds to two TCI states; or, the TCI state corresponding to the first code point includes a UL TCI state; the processing module is also used to: perform uplink transmission according to the UL TCI state among the two states corresponding to the first code point, or, perform uplink transmission according to the UL TCI state included in the TCI state corresponding to the first code point.

Based on the sixth aspect, in a possible implementation method, the transceiver module is also used to: send a second DCI to the first communication device, the second DCI is used to indicate a first code point among one or more code points; the first code point corresponds to two TCI states; or, the TCI state corresponding to the first code point includes a UL TCI state.

Based on the fifth aspect, in a possible implementation method, the processing module is specifically used to: perform uplink transmission through the uplink power control parameters and path loss reference signal associated with the UL TCI state.

Based on the fifth aspect, in a possible implementation method, when the second field indicates an UL TCI state identifier or a reference signal identifier; the processing module is specifically used to: perform uplink transmission according to the UL TCI state identifier or the reference signal identifier.

Based on the fifth aspect, in a possible implementation method, the processing module is specifically used to: when a first condition is met, perform uplink transmission according to the UL TCI state identifier or the reference signal identifier; the first condition includes one or more of the following: a first period of time has passed after the first communication device sends mode switching information; a second period of time has passed after the first communication device receives an ACK from the second communication device, the ACK is used to indicate that the second communication device has successfully received the measurement results and mode switching information of one or more reference signal resources; the first communication device receives first indication information from the second communication device, the first indication information is used to indicate that the first communication device uses the UL TCI state identifier or the reference signal identifier for uplink transmission; the first communication device receives second indication information from the second communication device, the second indication information is used to indicate that the first communication device switches to a separate mode; or, the first communication device receives third indication information from the second communication device, the third indication information is used to indicate a TCI state, and the reference signal identifier in the TCI state is a reference signal identifier on one of the one or more reference signal resources.

Based on the fifth aspect, in a possible implementation method, the second field indicates the identifiers of multiple UL TCI states or the identifiers of multiple reference signals; the transceiver module is also used to: receive fourth indication information from the second communication device, the fourth indication information is used to indicate the use of the identifier of the first UL TCI state or the identifier of the first reference signal, the first UL TCI state belongs to multiple UL TCI states, and the first reference signal belongs to multiple reference signals; the processing module is also used to: perform uplink transmission according to the identifier of the first UL TCI state or the identifier of the first reference signal.

Based on the fifth aspect, in a possible implementation method, the processing module is specifically used to: perform uplink transmission according to the uplink power control parameters and path loss reference signal associated with the first UL TCI state; or, perform uplink transmission by using the uplink power control parameters and path loss reference signal associated with the TCI state containing the identifier of the first reference signal; or, perform uplink transmission by using the uplink power control parameters and path loss reference signal configured in the BWP uplink indication configured by the second communication device for the first communication device.

Based on the sixth aspect, in a possible implementation method, the second field indicates the identifiers of multiple UL TCI states or the identifiers of multiple reference signals; the transceiver module is also used to: send fourth indication information to the first communication device, the fourth indication information is used to indicate the use of the identifier of the first UL TCI state or the identifier of the first reference signal, the first UL TCI state belongs to multiple UL TCI states, and the first reference signal belongs to multiple reference signals.

Based on the fifth aspect, in a possible implementation manner, the second field indicates the identifiers of multiple UL TCI states or multiple reference signals. The processing module is also used for: using one of the UL TCI state identifiers or one of the reference signal identifiers in the multiple UL TCI state identifiers for uplink transmission according to a preset rule.

Based on the fifth aspect, in a possible implementation method, the processing module is specifically used to: perform uplink transmission through the uplink power control parameters and path loss reference signal associated with the UL TCI state; or, perform uplink transmission through the uplink power control parameters and path loss reference signal associated with the TCI state containing the identifier of the reference signal; or, perform uplink transmission using the uplink power control parameters and path loss reference signal configured in the BWP uplink indication configured by the second communication device for the first communication device.

Based on the fifth aspect, in a possible implementation method, the reference signal resource currently used for transmission by the first communication device is one of one or more reference signal resources; the processing module is also used to: perform uplink transmission according to the UL TCI state identifier associated with the reference signal resource currently used for transmission by the first communication device or the identifier of the associated reference signal.

Based on the fifth aspect, in a possible implementation manner, when the second condition is met, uplink transmission is performed according to an identifier of a UL TCI state associated with a reference signal resource currently used for transmission by the first communication device or an identifier of an associated reference signal;

The second condition includes at least one of the following: a first period of time has passed after the first communication device sends the mode switching information; the first communication device receives fifth indication information from the second communication device, the fifth indication information is used to instruct the first communication device to use the UL TCI state identifier or the associated reference signal identifier associated with the reference signal resource currently used by the first communication device for uplink transmission; the first communication device receives second indication information from the second communication device, the second indication information is used to instruct the first communication device to switch to the separation mode; or, a second period of time has passed after the first communication device receives an ACK from the second communication device, the ACK is used to indicate that the second communication device has successfully received the mode switching information.

Based on the fifth aspect, in a possible implementation method, the transceiver module is also used to: receive third indication information from the second communication device, the third indication information is used to indicate the TCI state, the identifier of the reference signal in the TCI state is the identifier of the reference signal corresponding to one of the one or more reference signal resources; the processing module is also used to: perform uplink transmission according to the identifier of the UL TCI state associated with the reference signal resource or the identifier of the associated reference signal.

Based on the sixth aspect, in a possible implementation method, the transceiver module is also used to: send third indication information to the first communication device, the third indication information is used to indicate a TCI state, the identifier of the reference signal in the TCI state is an identifier of a reference signal corresponding to one of one or more reference signal resources, and the identifier of the UL TCI state associated with the reference signal resource or the identifier of the associated reference signal is used for uplink transmission by the first communication device.

Based on the fifth aspect, in a possible implementation method, the processing module is specifically used to: perform uplink transmission through the uplink power control parameters and path loss reference signal associated with the UL TCI state; or, perform uplink transmission through the uplink power control parameters and path loss reference signal associated with the TCI state containing the identifier of the reference signal; or, perform uplink transmission using the uplink power control parameters and path loss reference signal configured in the BWP uplink indication configured by the second communication device for the first communication device.

Based on the fifth aspect, in a possible implementation manner, the transceiver module is further used to: when a third condition is met, send mode switching information to the second communication device; the third condition includes at least one of the following: the power backoff amount required by the beam corresponding to the reference signal resource currently used by the first communication device for transmission is limited by MPE exceeds X decibels (dB), and X is greater than or equal to 0;

Among the one or more reference signal resources reported by the first communication device, there is at least one reference signal resource whose corresponding beam has a power backoff amount exceeding XdB due to MPE restriction;

The beam corresponding to the reference signal resource currently used by the first communication device for transmission cannot be used for uplink transmission due to MPE restrictions;

Among the one or more reference signal resources reported by the first communication device, at least one reference signal resource cannot be used for uplink transmission due to MPE restriction;

The beam corresponding to the reference signal resource currently used by the first communication device for transmission can only be used for downlink transmission but cannot be used for uplink transmission; or,

Among the one or more reference signal resources reported by the first communication device, at least one reference signal resource can only be used for downlink transmission but cannot be used for uplink transmission.

Based on the fifth aspect, in a possible implementation manner, the one or more reference signal resources are reference signal resources for the first communication device to report measurement results.

Based on the fifth aspect, in a possible implementation manner, the transceiver module is further used to: receive first configuration information from the second communication device, where the first configuration information is used to configure the first communication device to report mode switching information.

Based on the sixth aspect, in a possible implementation manner, the transceiver module is further used to: send the first configuration information to the first communication device, The configuration information is used to configure the first communication device to report mode switching information.

Based on the fifth aspect or the sixth aspect, in a possible implementation manner, the first configuration information is also used to configure the first communication device to report measurement results of one or more reference signal resources.

Based on the fifth aspect, in a possible implementation method, the transceiver module is also used to: receive a second DCI from a second communication device, the second DCI is used to indicate a first code point among one or more code points; the first code point corresponds to a common TCI state, or the TCI state corresponding to the first code point includes a common TCI state; and perform uplink and downlink transmission according to the common TCI state in the TCI state corresponding to the first code point.

Based on the sixth aspect, in a possible implementation method, the transceiver module is also used to: send a second DCI to the first communication device, the second DCI is used to indicate a first code point among one or more code points; the first code point corresponds to a common TCI state, or the TCI state corresponding to the first code point includes a common TCI state.

The seventh aspect of the present application provides a first communication device, which may be a device or apparatus with a chip, or a device or apparatus with an integrated circuit, or a chip, chip system, module or control unit in the aforementioned device or apparatus, which is not specifically limited in the present application. It should be noted that in the present application, when referring to the first communication device, it may refer to the first communication device itself, or to a chip, functional module or integrated circuit in the first communication device that completes the method provided in the present application, etc., which is not specifically limited in the present application. In the seventh aspect and its possible implementation methods, the first communication device is taken as an example for description. Including:

a processing module, configured to determine mode switching information, wherein the mode switching information is used to indicate that the first communication device is to switch from a common mode to a separate mode, or the mode switching information is used by the first communication device to request switching from a common mode to a separate mode, or the mode switching information is used to indicate that the first communication device is to switch from a separate mode to a common mode, or the mode switching information is used by the first communication device to request switching from a separate mode to a common mode, or the mode switching information is used to indicate whether to switch a TCI mode adopted by the first communication device, or the mode switching information is used to indicate a TCI mode adopted by the first communication device, and the TCI mode is a common mode or a separate mode;

The transceiver module is used to send mode switching information.

The eighth aspect of the present application provides a second communication device, which may be a device or apparatus with a chip, or a device or apparatus with an integrated circuit, or a chip, chip system, module or control unit in the aforementioned device or apparatus, which is not specifically limited in the present application. It should be noted that in the present application, when referring to the second communication device, it may refer to the second communication device itself, or to a chip, functional module or integrated circuit in the second communication device that completes the method provided in the present application, etc., which is not specifically limited in the present application. In the eighth aspect and its possible implementation methods, the second communication device is described as an example. Including:

A transceiver module is used to receive mode switching information from a first communication device, where the mode switching information is used to indicate that the first communication device will switch from a common mode to a separate mode, or the mode switching information is used by the first communication device to request switching from a common mode to a separate mode, or the mode switching information is used to indicate that the first communication device will switch from a separate mode to a common mode, or the mode switching information is used by the first communication device to request switching from a separate mode to a common mode, or the mode switching information is used to indicate whether to switch a TCI mode adopted by the first communication device, or the mode switching information is used to indicate a TCI mode adopted by the first communication device, and the TCI mode is either a common mode or a separate mode.

Based on the seventh aspect or the eighth aspect, in a possible implementation method, the mode switching information includes one or more UL TCI state identifiers, and the one or more UL TCI state identifiers are used to indicate the reference information index of the uplink transmission of the first communication device; or, the mode switching information includes one or more reference signal identifiers, and the one or more reference signal identifiers are used to indicate the reference information index of the uplink transmission of the first communication device.

Based on the seventh aspect or the eighth aspect, in a possible implementation manner, the mode switching information is carried in the first signaling.

Based on the seventh aspect or the eighth aspect, in a possible implementation method, the first signaling includes one or more reference signal resource identifiers, or includes one or more TCI state identifiers, and the one or more reference signal resource identifiers or one or more TCI state identifiers are used to indicate the reference information index of the downlink transmission of the first communication device.

Based on the seventh aspect or the eighth aspect, in a possible implementation method, each UL TCI state identifier in one or more UL TCI state identifiers is associated with a reference signal resource identifier in one or more reference signal resource identifiers, or is associated with a TCI state identifier in one or more TCI state identifiers; or, each reference signal identifier in one or more reference signal identifiers is associated with a reference signal resource identifier in one or more reference signal resource identifiers, or is associated with a TCI state identifier in one or more TCI state identifiers.

Based on the seventh aspect, in a possible implementation manner, the transceiver module is further used to: receive a first MAC CE or a first DCI from the second communication device, the first MAC CE or the first DCI being used to instruct the first communication device to switch from the common mode to the separate mode, or the first MAC CE or the first DCI being used to instruct the first communication device to switch from the separate mode to the common mode, or the first MAC CE or the first DCI being used to instruct the first communication device to switch from the separate mode to the common mode. Used to indicate that the first communication device adopts a separate mode, or the first MAC CE or the first DCI is used to indicate that the first communication device adopts a common mode.

Based on the eighth aspect, in a possible implementation method, the transceiver module is also used to: send a first MAC CE or a first DCI to the first communication device, the first MAC CE or the first DCI is used to instruct the first communication device to switch from a common mode to a separate mode, or, the first MAC CE or the first DCI is used to instruct the first communication device to switch from a separate mode to a common mode, or, the first MAC CE or the first DCI is used to instruct the first communication device to adopt a separate mode, or, the first MAC CE or the first DCI is used to instruct the first communication device to adopt a common mode.

Based on the seventh aspect or the eighth aspect, in a possible implementation method, the first MAC CE is used to instruct the first communication device to switch from a common mode to a separate mode, or the first MAC CE is used to instruct the first communication device to adopt a separate mode; the first MAC CE is also used to activate one or more TCI states, one or more TCI states corresponding to one or more code points, each code point corresponding to one or two TCI states; at least one TCI code point among the one or more code points corresponds to two TCI states; and/or, the TCI state corresponding to at least one TCI code point among the one or more code points includes a UL TCI state.

Based on the seventh aspect or the eighth aspect, in a possible implementation method, there is at least one Pi field in the first MAC CE whose value is 1.

Based on the seventh aspect or the eighth aspect, in a possible implementation method, there is at least one D/U field in the first MAC CE whose value is 0.

Based on the seventh aspect or the eighth aspect, in a possible implementation method, the first MAC CE or the first DCI is used to instruct the first communication device to switch from a separate mode to a common mode; or, the first MAC CE or the first DCI is used to instruct the first communication device to adopt a common mode; the first MAC CE is also used to activate one or more TCI states, and the one or more TCI states correspond to one or more code points, each of the one or more code points corresponds to only one TCI state, and the TCI state is a common TCI state.

Based on the seventh aspect or the eighth aspect, in a possible implementation method, the value of all Pi fields in the first MAC CE is 0.

Based on the seventh aspect or the eighth aspect, in a possible implementation method, the value of all D/U fields in the first MAC CE is 1.

Based on the seventh aspect or the eighth aspect, in a possible implementation method, the first MAC CE or the first DCI includes a first field, and the first field is used to indicate that the first communication device switches from a common mode to a separate mode.

Based on the seventh aspect, in a possible implementation method, the transceiver module is also used to: receive a second DCI from a second communication device, the second DCI is used to indicate a first code point among one or more code points; the first code point corresponds to two TCI states; or, the TCI state corresponding to the first code point includes a UL TCI state; the processing module is also used to: perform uplink transmission according to the UL TCI state among the two states corresponding to the first code point, or, perform uplink transmission according to the UL TCI state included in the TCI state corresponding to the first code point.

Based on the eighth aspect, in a possible implementation method, the transceiver module is also used to: send a second DCI to the first communication device, the second DCI is used to indicate a first code point among one or more code points; the first code point corresponds to two TCI states; or, the TCI state corresponding to the first code point includes a UL TCI state.

Based on the seventh aspect, in a possible implementation method, the processing module is specifically used to: perform uplink transmission through the uplink power control parameters and path loss reference signal associated with the UL TCI state.

Based on the seventh aspect, in a possible implementation method, when the mode switching information includes a UL TCI state identifier, or includes a reference signal identifier; the processing module is specifically used to: perform uplink transmission according to the UL TCI state identifier or the reference signal identifier.

Based on the seventh aspect, in a possible implementation method, the processing module is specifically used to: when a first condition is met, perform uplink transmission according to the UL TCI state identifier or the reference signal identifier; the first condition includes one or more of the following: a first period of time has passed after the first communication device sends the mode switching information; a second period of time has passed after the first communication device receives an ACK from the second communication device, the ACK is used to indicate that the second communication device has successfully received the mode switching information; the first communication device receives first indication information from the second communication device, the first indication information is used to indicate that the first communication device uses the UL TCI state identifier or the reference signal identifier for uplink transmission; the first communication device receives second indication information from the second communication device, the second indication information is used to indicate that the first communication device switches to a separate mode; or, the first communication device receives third indication information from the second communication device, the third indication information is used to indicate a TCI state, and the reference signal identifier in the TCI state is a reference signal identifier corresponding to one of the one or more reference signal resources.

Based on the seventh aspect, in a possible implementation method, the processing module is specifically used to: perform uplink transmission through the uplink power control parameters and path loss reference signal associated with the UL TCI state; or, perform uplink transmission through the uplink power control parameters and path loss reference signal associated with the TCI state containing the identifier of the reference signal; or, perform uplink transmission using the uplink power control parameters and path loss reference signal configured in the BWP uplink indication configured by the second communication device for the first communication device.

Based on the seventh aspect, in a possible implementation manner, the mode switching information includes identifiers of multiple UL TCI states, or includes multiple The transceiver module is also used to: receive fourth indication information from the second communication device, the fourth indication information is used to indicate the use of the first UL TCI state identifier or the first reference signal identifier, the first UL TCI state belongs to multiple UL TCI states, and the first reference signal belongs to multiple reference signals; the processing module is also used to: perform uplink transmission according to the first UL TCI state identifier or the first reference signal identifier.

Based on the eighth aspect, in a possible implementation method, the mode switching information includes identifiers of multiple UL TCI states, or identifiers of multiple reference signals; the transceiver module is also used to: send fourth indication information to the first communication device, the fourth indication information is used to indicate the use of the identifier of the first UL TCI state or the identifier of the first reference signal, the first UL TCI state belongs to multiple UL TCI states, and the first reference signal belongs to multiple reference signals.

Based on the seventh aspect, in a possible implementation method, the mode switching information includes multiple UL TCI state identifiers, or includes multiple reference signal identifiers; the processing module is also used to: use one of the multiple UL TCI state identifiers or one of the reference signal identifiers for uplink transmission according to preset rules.

Based on the seventh aspect, in a possible implementation method, the reference signal resource currently used for transmission by the first communication device is one of one or more reference signal resources, or the TCI state currently used by the first communication device is one of the TCI states corresponding to one or more TCI state identifiers; the processing module is also used to: perform uplink transmission according to the reference signal resource currently used by the first communication device or the identifier of the UL TCI state associated with the TCI state or the identifier of the associated reference signal.

Based on the seventh aspect, in a possible implementation method, the processing module is specifically used to: when the second condition is met, uplink transmission is performed according to the reference signal resource currently used by the first communication device or the UL TCI state identifier associated with the TCI state or the identifier of the associated reference signal; the second condition includes one or more of the following: a first period of time has passed after the first communication device sends the mode switching information; the first communication device receives fifth indication information from the second communication device, the fifth indication information is used to instruct the first communication device to use the reference signal resource currently used by the first communication device or the UL TCI state identifier associated with the TCI state or the identifier of the associated reference signal for uplink transmission; the first communication device receives second indication information from the second communication device, the second indication information is used to instruct the first communication device to switch to the separation mode; or, after a second period of time has passed after the first communication device receives an ACK from the second communication device, the ACK is used to indicate that the second communication device has successfully received the mode switching information.

Based on the seventh aspect, in a possible implementation method, the transceiver module is also used to: receive third indication information from the second communication device, the third indication information is used to indicate the TCI state, the identifier of the reference signal in the TCI state is the identifier of the reference signal corresponding to one of the one or more reference signal resources; the processing module is also used to: perform uplink transmission according to the identifier of the UL TCI state associated with the reference signal resource or the identifier of the associated reference signal.

Based on the eighth aspect, in a possible implementation method, the transceiver module is also used to: send third indication information to the first communication device, the third indication information is used to indicate a TCI state, the identifier of the reference signal in the TCI state is an identifier of a reference signal corresponding to one of one or more reference signal resources, and the identifier of the UL TCI state associated with the reference signal resource or the identifier of the associated reference signal is used for uplink transmission by the first communication device.

Based on the seventh aspect or the eighth aspect, in a possible implementation method, the first signaling is PHR MAC CE, and there is an R field in each byte where the field for indicating the reference signal resource in the PHR MAC CE is located, and the R field is used to indicate whether the reference signal resource is associated with the UL TCI status identifier or the reference signal identifier.

Based on the seventh aspect or the eighth aspect, in a possible implementation method, when the value of the R field is 1, it indicates that the reference signal resource is associated with the UL TCI state identifier or the reference signal identifier; when the value of the R field is 0, it indicates that the reference signal resource is not associated with the UL TCI state identifier or the reference signal identifier.

Based on the seventh aspect or the eighth aspect, in a possible implementation method, the first signaling is PHR MAC CE, and the Pi field in PHR MAC CE is used to indicate whether the reference signal resource i in one or more reference signal resources is associated with the UL TCI state identifier or the reference signal identifier.

Based on the seventh aspect or the eighth aspect, in a possible implementation method, when the value of the Pi field is 1, it indicates that the reference signal resource i is associated with the UL TCI state identifier or the reference signal identifier; when the value of the Pi field is 0, it indicates that the reference signal resource i is not associated with the UL TCI state identifier or the reference signal identifier; or, when the value of the Pi field is 0, it indicates that the reference signal resource i is associated with the UL TCI state identifier or the reference signal identifier; when the value of the Pi field is 1, it indicates that the reference signal resource i is not associated with the UL TCI state identifier or the reference signal identifier.

Based on the seventh aspect or the eighth aspect, in a possible implementation manner, the first signaling further includes a second field, and the second field is used to indicate Whether the first signaling includes a UL TCI state identifier or a reference signal identifier.

Based on the seventh aspect or the eighth aspect, in a possible implementation manner, the first signaling also includes a third field, and the third field is used to trigger the first communication device to switch from the common mode to the separate mode.

Based on the seventh aspect or the eighth aspect, in a possible implementation method, the first signaling also includes one or more fourth fields, and the one or more fourth fields correspond to one or more reference signal resource identifiers, or the one or more fourth fields correspond to one or more TCI state identifiers; each fourth field is used to indicate whether the reference signal resource identifier or TCI state identifier corresponding to the fourth field has an associated UL TCI state identifier or an associated reference signal identifier.

Based on the seventh aspect, in a possible implementation manner, the transceiver module is further used to: when a first condition is met, send mode switching information to the second communication device; the first condition includes at least one of the following: the power backoff amount required by the beam corresponding to the reference signal resource currently used by the first communication device for transmission is limited by MPE exceeds X decibels (dB), and X is greater than or equal to 0;

Among the one or more reference signal resources reported by the first communication device, there is at least one reference signal resource whose corresponding beam has a power backoff amount exceeding XdB due to MPE restriction;

The beam corresponding to the reference signal resource currently used by the first communication device for transmission cannot be used for uplink transmission due to MPE restrictions;

Among the one or more reference signal resources reported by the first communication device, at least one reference signal resource cannot be used for uplink transmission due to MPE restriction;

The beam corresponding to the reference signal resource currently used by the first communication device for transmission can only be used for downlink transmission but cannot be used for uplink transmission; or,

Among the one or more reference signal resources reported by the first communication device, at least one reference signal resource can only be used for downlink transmission but cannot be used for uplink transmission.

Based on the seventh aspect, in a possible implementation method, the one or more reference signal resources are reference signal resources for reporting measurement results by the first communication device, or reference signal resources reported in the PHR MAC CE, or any reference signal resource in a configured reference signal resource set.

Based on the seventh aspect, in a possible implementation method, the transceiver module is also used to: receive a second DCI from a second communication device, the second DCI is used to indicate a first code point among one or more code points, the first code point corresponds to a common TCI state, or the first code point corresponds to a TCI state including a common TCI state; perform uplink and downlink transmission according to the common TCI state in the TCI state corresponding to the first code point.

Based on the eighth aspect, in a possible implementation method, the transceiver module is also used to: send a second DCI to the first communication device, the second DCI is used to indicate a first code point among one or more code points; the first code point corresponds to a common TCI state, or the TCI state corresponding to the first code point includes a common TCI state.

In a ninth aspect of the present application, a communication device is provided, the communication device comprising: a processor and a memory. The memory stores a computer program or a computer instruction, and the processor is used to call and run the computer program or the computer instruction stored in the memory, so that the processor implements any one of the implementation methods in any one of the first to fourth aspects.

Optionally, the communication device further includes a transceiver, and the processor is used to control the transceiver to send and receive signals.

In a tenth aspect, the present application provides a communication device, the communication device comprising a processor. The processor is used to call a computer program or computer instruction stored therein, so that the processor implements any one of the implementation methods in any one of the first to fourth aspects.

Optionally, the communication device further includes a transceiver, and the processor is used to control the transceiver to send and receive signals.

In an eleventh aspect of the present application, a communication device is provided, which includes a processor, and the processor is used to execute any one of the implementation methods of any one of the first to fourth aspects.

A twelfth aspect of the present application provides a computer program product comprising instructions, characterized in that when it is run on a computer, it enables the computer to execute any implementation method of any one of the first to fourth aspects.

A thirteenth aspect of the present application provides a computer-readable storage medium, comprising computer instructions, which, when executed on a computer, enables the computer to execute any one of the implementation methods in any one of the first to fourth aspects.

In a fourteenth aspect, the present application provides a chip device, comprising a processor, for calling a computer program or computer instruction in the memory so that the processor executes any one of the implementation methods in any one of the first to fourth aspects described above.

Optionally, the processor is coupled to the memory via an interface.

In a fifteenth aspect, the present application provides a communication system, which includes a terminal device and a network device; the terminal device is used to execute any one of the implementations shown in the first aspect, and the network device is used to execute any one of the implementations shown in the second aspect; or, the terminal The device is used to execute any one of the implementations shown in the third aspect, and the network device is used to execute any one of the implementations shown in the fourth aspect.

It can be known from the above technical solution that one or more reference signal resources are measured. Then, the measurement results and mode switching information of the one or more reference signal resources are sent. The mode switching information is used to indicate that the terminal device will switch from the common mode to the separate mode, or the mode switching information is used for the terminal device to request to switch from the common mode to the separate mode; or the mode switching information is used to indicate that the terminal device will switch from the separate mode to the common mode; or the mode switching information is used for the terminal device to request to switch from the separate mode to the common mode; or the mode switching information is used to indicate whether to switch the TCI mode adopted by the terminal device, or the mode switching information is used to indicate the TCI mode adopted by the terminal device, and the TCI mode is a common mode or a separate mode. It can be seen from this that the terminal device can report the mode switching information when reporting the measurement results of the reference signal resources, thereby triggering the terminal device to switch from the common mode to the separate mode, or triggering the terminal device to switch from the separate mode to the common mode. This is conducive to realizing the rapid switching of the terminal device to the separate mode or the common mode, without the need for the network device to configure the terminal device to switch to the separate mode or the common mode through RRC signaling, reducing the switching delay, and avoiding affecting the transmission efficiency of the terminal device.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of a communication system according to an embodiment of the present application;

FIG2 is another schematic diagram of a communication system according to an embodiment of the present application;

FIG3A is a format diagram of a MAC CE according to an embodiment of the present application;

FIG3B is a format diagram of PHR MAC CE according to an embodiment of the present application;

FIG4 is a schematic diagram of an embodiment of a method for sending measurement results and a method for receiving measurement results according to an embodiment of the present application;

FIG5 is a schematic diagram of another embodiment of the information sending method and the information receiving method according to the embodiment of the present application;

FIG6 is another format diagram of PHR MAC CE according to an embodiment of the present application;

FIG7 is another format diagram of the PHR MAC CE according to the embodiment of the present application;

FIG8 is a schematic diagram of another embodiment of the information sending method and the information receiving method according to the embodiment of the present application;

FIG9 is a schematic diagram of another embodiment of the information sending method and the information receiving method according to the embodiment of the present application;

FIG10 is a schematic diagram of another embodiment of the information sending method and the information receiving method according to the embodiment of the present application;

FIG11 is a schematic diagram of a structure of a communication device according to an embodiment of the present application;

FIG12 is another schematic diagram of the structure of the communication device according to the embodiment of the present application;

FIG13 is another schematic diagram of the structure of the communication device according to the embodiment of the present application;

FIG14 is a schematic diagram of a structure of a terminal device according to an embodiment of the present application;

FIG15 is a schematic diagram of the structure of a base station according to an embodiment of the present application.

DETAILED DESCRIPTION

The embodiments of the present application provide an information sending method, an information receiving method and a related device, which are used to send measurement results and mode switching information of one or more reference signal resources, thereby triggering a terminal device to switch from a common mode to a separate mode, or triggering a terminal device to switch from a separate mode to a common mode. It is not necessary for a network device to configure a terminal device to switch to a separate mode or a common mode through RRC signaling, thereby reducing the switching delay and avoiding affecting the transmission efficiency of the terminal device.

The technical solution in this application will be described below in conjunction with the accompanying drawings.

The technical solution of the present application can be applied to various communication systems. For example, 5G system, new radio (NR) system, long term evolution (LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (TDD) system, universal mobile telecommunication system (UMTS), mobile communication system after 5G network (for example, 6G mobile communication system), vehicle to everything (V2X) communication system, etc.

The communication system to which the present application is applicable includes a network device and a terminal device, and the network device and the terminal device can communicate using beams.

The terminal device and network device of this application are introduced below.

The terminal device may be a wireless terminal device capable of receiving network device scheduling information and indication information. The terminal device may be a device that provides voice and/or data connectivity to a user, or a handheld device with wireless connection function, or other processing device connected to a wireless modem.

Terminal equipment, also known as user equipment (UE), mobile station (MS), mobile terminal (MT), customer premise equipment (CPE), etc. Terminal equipment is equipment that includes wireless communication functions (providing voice/data connectivity to users). For example, handheld devices with wireless connection functions, or vehicle-mounted devices, etc. At present, some examples of terminal devices are: mobile phones, tablet computers, laptop computers, PDAs, mobile internet devices (MID), wearable devices, virtual reality (VR) devices, augmented reality (AR) devices, wireless terminals in industrial control, wireless terminals in Internet of Vehicles, wireless terminals in self-driving, wireless terminals in remote medical surgery, wireless terminals in smart grids, wireless terminals in transportation safety, wireless terminals in smart cities, or wireless terminals in smart homes. For example, the wireless terminal in self-driving can be a drone, a helicopter, or an airplane. For example, the wireless terminal in Internet of Vehicles can be a vehicle-mounted device, a vehicle-mounted device, a vehicle-mounted module, a vehicle, or a ship. The wireless terminal in industrial control can be a camera, a robot, or a robotic arm. The wireless terminals in a smart home can be TVs, air conditioners, vacuum cleaners, speakers, or set-top boxes.

It should be noted that the terminal device may be a device or apparatus with a chip, or a device or apparatus with an integrated circuit, or a chip, chip system, module or control unit in the device or apparatus shown above, and this application does not limit it. It should be noted that in this application, when referring to the terminal device, it may refer to the terminal device itself, or to the chip, functional module or integrated circuit in the terminal device that completes the method provided in this application, and this application does not limit it.

A network device may be a device in a wireless network. For example, a network device may be a device deployed in a wireless access network to provide wireless communication functions for a terminal device. For example, a network device may be a radio access network (RAN) node that connects a terminal device to a wireless network, and may also be referred to as an access network device, a RAN entity, an access node, a network node, or a communication device.

Specifically, the network device may be an access network device for a cellular system related to the 3rd generation partnership project (3GPP). For example, a 4G communication system, or a 5G communication system. The network device may also be an access network device in an open access network (open RAN, O-RAN or ORAN) or a cloud radio access network (cloud radio access network, CRAN). Alternatively, the network device may also be an access network device in a communication system obtained by integrating two or more of the above communication systems.

The network equipment includes, but is not limited to, evolved Node B (eNB), radio network controller (RNC), Node B (NB), base station controller (BSC), base transceiver station (BTS), home base station (e.g., home evolved NodeB, or home Node B, HNB), baseband unit (BBU), access point (AP) in wireless fidelity (WIFI) system, macro base station, micro base station, wireless relay node, donor node, wireless controller in CRAN scenario, wireless backhaul node, transmission point (TP) or transmission and receiving point (TRP), etc. It can also be network equipment in 5G mobile communication system. For example, a next generation NodeB (gNB), TRP, TP in an NR system; or one or a group of antenna panels (including multiple antenna panels) of a base station in a 5G mobile communication system; or, the network device may also be a network node constituting a gNB or a transmission point. For example, a centralized unit (CU), a distributed unit (DU), a centralized unit-control plane (CU-CP), a centralized unit-user plane (CU-UP), or a radio unit (RU). The CU and DU may be separately configured or may be included in the same network element, such as a BBU. The RU may be included in a radio frequency device or a radio frequency unit. For example, in a remote radio unit (RRU), an active antenna unit (AAU), or a remote radio head (RRH). Alternatively, the network device may also be a server, a wearable device, a vehicle, or an onboard device. For example, the access network device in V2X technology can be a road side unit (RSU).

It should be noted that in different systems, CU (or CU-CP and CU-UP), DU or RU may also have different names, but those skilled in the art can understand their meanings. For example, in the ORAN system, CU may also be called an open centralized unit (open centralized unit, O-CU) or an open CU, DU may also be called an open distributed unit (open distributed unit, O-DU), CU-CP may also be called an open-centralized unit-control plane (open centralized unit control plane, O-CU-CP), CU-UP may also be called an open-centralized unit-user plane (open centralized unit user plane, O-CU-UP), and RU may also be called an open radio unit (open radio unit, O-RU), which is not limited in this application. Any of the CU, CU-CP, CU-UP, DU and RU in this application may be implemented together through a software module, a hardware module, or a combination of a software module and a hardware module.

Optionally, for network elements in the ORAN system, each network element may implement the protocol layer functions shown in Table 1 below.

Table 1

It should be noted that, in the ORAN system, the network device in the present application may be one or more network elements in Table 1 above.

The following describes the architecture of the CU and DU of the access network device. The access network device includes at least one CU and at least one DU. Optionally, the access network device also includes at least one RU.

The following is an introduction using an access network device including a CU and a DU as an example. The CU has some functions of the core network, and the CU may include a CU-CP and a CU-UP. The CU and the DU may be configured according to the protocol layer functions of the wireless network they implement. For example, the CU is configured to implement the functions of the packet data convergence protocol (PDCP) layer and the protocol layers above (for example, the RRC layer and/or the SDAP layer). The DU is configured to implement the functions of the protocol layers below the PDCP layer (for example, the RLC layer, the MAC layer, and/or the physical (PHY) layer). For another example, the CU is configured to implement the functions of the protocol layers above the PDCP layer (such as the RRC layer and/or the SDAP layer), and the DU is configured to implement the functions of the PDCP layer and the protocol layers below (for example, the RLC layer, the MAC layer, and/or the PHY layer, etc.).

When the CU includes a CU-CP and a CU-UP, the CU-CP is used to implement the control plane function of the CU, and the CU-UP is used to implement the user plane function of the CU. For example, when the CU is configured to implement the functions of the PDCP layer, the RRC layer, and the SDAP layer, the CU-CP is used to implement the control plane function of the RRC layer and the PDCP layer, and the CU-UP is used to implement the user plane function of the SDAP layer and the PDCP layer.

CU-CP can interact with network elements in the core network for implementing control plane functions. The network elements in the core network for implementing control plane functions can be access and mobility function network elements, such as access and mobility management function (AMF) in 5G systems. The access and mobility function network elements are responsible for mobility management in mobile networks, such as location update of terminal devices, registration network of terminal devices, switching of terminal devices, etc.

CU-UP can interact with network elements in the core network that implement user plane functions. Network elements in the core network that implement user plane functions, such as the User Plane Function (UPF) in the 5G system, are responsible for forwarding and receiving data in terminal devices.

The above configuration of CU and DU is only an example, and the functions of CU and DU can also be configured as needed. For example, the CU or DU can be configured to have the functions of more protocol layers, or the CU or DU can be configured to have partial processing functions of the protocol layer. For example, some functions of the RLC layer and the functions of the protocol layers above the RLC layer are set in the CU, and the remaining functions of the RLC layer and the functions of the protocol layers below the RLC layer are set in the DU. For another example, the functions of the CU or DU can be divided according to the service type or other system requirements. For example, by delay, the functions whose processing time needs to meet the smaller delay requirement are set in the DU, and the functions that do not need to meet the delay requirement are set in the CU.

DU and RU can work together to implement the functions of the PHY layer. A DU can be connected to one or more RUs. The functions of DU and RU can be configured in various ways according to the design. For example, DU is configured to implement baseband functions, and RU is configured to implement mid-frequency functions. For another example, DU is configured to implement high-level functions in the PHY layer, and RU is configured to implement low-level functions in the PHY layer or The high-level functions in the physical layer may include a part of the functions of the physical layer, which is closer to the MAC layer, and the low-level functions in the physical layer may include another part of the functions of the physical layer, which is closer to the mid-radio side.

The network device can also be a core network device. For example, the functional entity of the network device for the control plane includes the access and mobility management function (AMF) or the session management function (SMF). AMF is responsible for user access management, security authentication, mobility management, etc. The functional entity of the data plane includes the user plane function (UPF). UPF is responsible for managing the transmission of user plane data, traffic statistics and other functions.

It should be noted that the network device can be a device or apparatus with a chip, or a device or apparatus with an integrated circuit, or a chip, chip system, module or control unit in the aforementioned device or apparatus, and this application does not limit it. It should be noted that in this application, when referring to a network device, it can refer to the network device itself, or it can refer to a chip, functional module or integrated circuit in the network device that completes the method provided in this application, and this application does not limit it.

To facilitate understanding of the technical solution of the embodiment of the present application, two possible communication systems to which the method provided in the embodiment of the present application is applicable are shown below in combination with FIG. 1 and FIG. 2 .

FIG1 is a schematic diagram of a communication system according to an embodiment of the present application. As shown in FIG1 , the communication system includes at least one network device. For example, the network device 111 shown in FIG1 , and the communication system further includes at least one terminal device. For example, the terminal device 121 and the terminal device 122 shown in FIG1 . The network device 111 can transmit with the terminal device 121 and the terminal device 122 using beams.

FIG2 is another schematic diagram of a communication system according to an embodiment of the present application. As shown in FIG2 , the communication system may include at least two network devices. For example, network device 211, network device 212, and network device 213 as shown in FIG2 . The communication system also includes at least one terminal device. For example, terminal device 221 as shown in FIG2 . Terminal device 221 may be provided with communication services by multiple network devices. For example, as shown in FIG2 , network device 211 may use beam 1 to transmit with terminal device 221, and network device 212 may use beam 2 to transmit with terminal device 221. Network device 213 may use beam 3 to transmit with terminal device 221. That is to say, one terminal device may be provided with communication services by multiple network devices at the same time.

Some technical terms involved in this application are introduced below.

Beam: A beam is a communication resource. A beam can be a wide beam, a narrow beam, or other types of beams. The technology used to form the beam can be beamforming technology or other technical means. Beamforming technology can specifically include digital beamforming technology, analog beamforming technology, and hybrid digital/analog beamforming technology. Different beams can be considered as different resources.

A beam may be referred to in the NR protocol as a spatial domain filter, spatial filter, spatial domain parameter, spatial parameter, spatial domain setting, spatial setting, quasi-colocation (QCL) information, QCL assumption, or QCL indication. A beam may be indicated by a transmission configuration indicator state (TCI-state) parameter or by a spatial relation parameter. Therefore, in this application, beam can be replaced by spatial filter, spatial filter, spatial parameter, spatial parameter, spatial setting, spatial setting, quasi-co-location (QCL) information, QCL assumption, QCL indication, TCI-state) (including UL TCI state, downlink TCI state (downlink TCI state, DL TCI state)), or spatial relationship, etc. The above terms are also equivalent to each other. Beam can also be replaced by other terms representing beam, which is not limited in this application.

The transmitter can send the same information or different information through different beams. Optionally, multiple beams with the same or similar communication characteristics can be regarded as one beam. One beam can include one or more antenna ports for transmitting data channels, control channels, and detection signals, etc.

A beam used to transmit a signal may be referred to as a transmission beam (Tx beam), a spatial domain transmission filter, a spatial transmission filter, a spatial domain transmission parameter, a spatial transmission parameter, a spatial domain transmission setting, or a spatial transmission setting. An uplink transmit beam may be indicated by any of a spatial relationship, a TCI-state, and a sounding reference signal (SRS) resource (indicating a transmit beam using the SRS). Therefore, an uplink transmit beam may also be replaced by an SRS resource.

The beam used to receive the signal can be called a reception beam (Rx beam), a spatial domain reception filter, a spatial reception filter, or a spatial reception parameter. domain reception parameter) or spatial reception parameter, spatial domain reception setting, or spatial reception setting.

For example, a transmit beam may refer to the distribution of signal strength in different directions of space after a signal is transmitted by an antenna, and a receive beam may refer to the distribution of signal strength in different directions of space of a wireless signal received from an antenna. It is understandable that one or more antenna ports forming a beam may also be regarded as an antenna port set.

When the transmitter uses low-frequency or medium-frequency bands, it can send signals omnidirectionally or at a wider angle. When using high-frequency bands, thanks to the smaller carrier wavelength of the high-frequency communication system, an antenna array consisting of many antenna elements can be arranged at the transmitter and receiver. The transmitter sends signals with a certain beamforming weight, so that the transmitted signal forms a beam with spatial directivity. At the same time, the antenna array is used at the receiver to receive the signal with a certain beamforming weight. This is beneficial to increase the received power of the signal at the receiver and combat path loss.

QCL: Quasi-colocation relationship is used to indicate that multiple resources have one or more identical or similar communication characteristics. For multiple resources with quasi-colocation relationship, the same or similar communication configuration can be adopted. For example, if two antenna ports have a quasi-colocation relationship, the large-scale characteristics of the channel for transmitting a symbol on one port can be inferred from the large-scale characteristics of the channel for transmitting a symbol on the other port. Large-scale characteristics may include: delay spread, average delay, Doppler spread, Doppler shift, average gain, receiving parameters, terminal device receiving beam number, transmit/receive channel correlation, receive arrival angle, spatial correlation of receiver antenna, main arrival angle (angel-of-arrival, AoA), average arrival angle, extension of AoA, etc. Specifically, the colocation indication is used to indicate whether at least two groups of antenna ports have a colocation relationship, including: the colocation indication is used to indicate whether the channel state information reference signals sent by at least two groups of antenna ports are from the same transmission point, or the colocation indication is used to indicate whether the channel state information reference signals sent by at least two groups of antenna ports are from the same beam group.

Public beam: Unified TCI is introduced in R17. Unified TCI is a unified beam indication framework. A network device can indicate a beam to a terminal device, and the beam can be used for the transmission of one or more channels, one or more channels, one or more reference signals, and/or one or more reference signals at the same time. The beam can be understood as a public beam. A public beam can be an uplink public beam, a downlink public beam, or an uplink and downlink public beam.

Channels include but are not limited to at least one of: physical downlink control channel (PDCCH), physical downlink shared channel (PDSCH), physical uplink control channel (PUCCH), physical uplink shared channel (PUSCH), and physical random access channel (PRACH). Reference signals include but are not limited to at least one of: synchronization signal block and physical broadcast channel block (SSB), CSI-RS, DMRS, phase tracking reference signal (PTRS), time-frequency tracking reference signal (TRS), and sounding reference signal (SRS).

Uplink and downlink common beam: used for transmission of at least one uplink channel or at least one reference signal, and at least one downlink channel or at least one reference signal. For example, PDCCH, PDSCH, PUCCH and PUSCH. Uplink and downlink common beams can also be called joint common beams.

Uplink common beam: used for transmission of multiple uplink channels at the same time, and/or, used for transmission of multiple uplink channels at the same time, and/or, used for transmission of one or more uplink reference signals at the same time, for example, PUCCH, PUSCH and SRS.

Downlink common beam: used for transmission of multiple downlink channels at the same time, and/or, used for transmission of multiple downlink channels at the same time, and/or, used for transmission of one or more downlink reference signals at the same time, such as PDCCH, PDSCH and CSI-RS.

Reference signal resources: In the communication protocol, the word beam is not directly used to characterize the beam, but other places are used to implicitly describe beam-related operations. For example, during the beam measurement process, the beam and the reference signal resource have a corresponding relationship (for example, the network device uses a beam to send the reference signal resource corresponding to the beam), and the terminal device measures the quality of the reference signal resource, which is equivalent to measuring the quality of the beam. For the downlink direction, the reference signal resource can be a channel state information reference signal (CSI-RS) resource or a synchronization signal/physical broadcast channel block (SS/PBCH block) resource. Among them, SS/PBCH block can be referred to as synchronization signal block (SSB). For the uplink direction, the reference signal resource can be a sounding reference signal (SRS) resource or a demodulation reference signal (DMRS) resource.

Each reference signal resource has a unique index, which is used to identify the corresponding reference signal resource. It can be understood that the index of the reference signal resource can also be called the identifier of the reference signal resource, which is not specifically limited in this application.

TCI: It can also be called TCI state (TCI-state). In uplink and downlink transmission, the correct beams need to be used between the network device and the terminal device to achieve correct transmission. In downlink transmission, the network device needs to indicate to the terminal device the downlink transmission beam it uses. The terminal device can determine the appropriate receiving beam based on the downlink transmission beam, and the receiving beam is used to receive information from the network device. In uplink transmission, the network device also needs to indicate to the terminal device which uplink transmission beam the terminal device uses to send information to the network device. The network device can determine the uplink transmission beam with better signal quality for the terminal device. Both the uplink transmission beam and the downlink transmission beam can be indicated by the corresponding TCI state. Specifically, the downlink transmission beam can be indicated by the DL TCI state, and the uplink transmission beam can be indicated by the UL TCI state.

In the 3GPP protocol, a network device can indicate the TCI state to a terminal device through the TCI field in the downlink control information (DCI). The size of the TCI field is 3 bits, which can be specifically represented as 8 different field values (also called code points). Each field value of the TCI field can be associated with an index of a TCI state. The index of the TCI state can uniquely identify a TCI state, which can be a DL TCI state or a UL TCI state. Each field value of the TCI field can also be associated with two TCI state indexes, which can uniquely identify two TCI states, which can include a DL TCI state and a UL TCI state.

The DL TCI state includes several parameters, through which the terminal device can determine the relevant information of the downlink transmit beam, thereby determining to use the appropriate receive beam to receive information from the network device. The TCI state is configured by the network device to each terminal device. The structure of the DL TCI state is shown below:

Each TCI state includes an index of its own (tci-StateId) and two quasi-colocation information (QCL-info). Each QCL-info includes a reference signal resource, which is used to indicate that the downlink transmission of the TCI state should use the same downlink timing, frequency offset or receiving beam as the reference signal resource. It is specifically determined by the type of the QCL-info. The QCL type can have four values {typeA, typeB, typeC, typeD}. When the QCL type is typeA, typeB and typeC, the downlink transmission should be carried out using the same downlink timing and frequency offset as the reference signal resource. When the QCL type is typeD, the downlink transmission should be carried out using the same receiving beam as the reference signal resource. Of the above two QCL-info, one is of typeD and the other is of typeA or typeB or typeC. The terminal device can determine which receiving beam to use to receive the corresponding downlink transmission through the QCL-info of typeD. The specific execution steps are as follows:

The network device indicates a DL TCI state to the terminal device through DCI. The terminal device determines the reference signal resource in the QCL information of type D in the DL TCI state. The terminal device uses the receiving beam of the reference signal resource as the receiving beam used for downlink transmission. It should be noted that the receiving beam of the reference signal resource is obtained by the terminal device in advance through the beam management process. Through the beam management process, the terminal device can determine which receiving beam is the best to receive the reference signal resource, and use the receiving beam as the receiving beam of the reference signal resource.

The UL TCI state includes a reference signal resource, which is used to indicate that the uplink transmission using the TCI state should use the same signal as the reference signal resource. The terminal device can determine which transmission beam to use for uplink transmission through the reference signal resource. In the UL TCI state, the reference signal resource is not included in the QCL-info, and the QCL type is not distinguished, because there is no need to refer to the uplink timing and frequency offset information, only the uplink transmission beam is needed. The structure of the UL TCI state is shown below:

The specific steps are as follows:

The network device indicates a UL TCI state to the terminal device through DCI. The terminal device determines the reference signal resource in the UL TCI state. The terminal device uses the transmit beam of the reference signal resource as the transmit beam used by the terminal device for uplink transmission. It should be noted that the transmit beam of the reference signal resource is obtained by the terminal device in advance through the beam management process.

The following describes the configuration, activation and indication of TCI status.

TCI-state configuration: The network device configures multiple TCI-states to the terminal device through RRC signaling. These TCI-states all include a QCL-Info of type D. The network device can also configure TCI-states that do not include QCL-info of type D, but these TCI-states are not used for data transmission beam indication, so they are not further explained here.

TCI-state activation: After the network device is configured with multiple TCI-states, it is also necessary to activate 8 of them through the media access control element (MAC-CE). These 8 TCI-states correspond to the 8 values of the TCI field in the DCI. That is, the 8 values of the TCI field in the DCI correspond to which 8 TCI-states are determined by MACCE.

TCI state indication: The network device indicates a specific TCI-state through the TCI field in the DCI. For example, the value of the TCI field in the DCI sent by the network device to the terminal device is 000, indicating that the data transmission beam adopts the TCI state corresponding to 000. The reference signal contained in the QCL-Info of type D in the TCI state is the channel state information-reference signal (CSI-RS) with an index of #1, indicating that the beam used for data transmission is the same as the receiving beam corresponding to the CSI-RS with an index of #1. The receiving beam corresponding to the CSI-RS with an index of #1 can be determined through the beam measurement process and is known to the terminal device. Therefore, through the specific value of the TCI field, the terminal device can determine the beam corresponding to the data transmission beam, and thus use the corresponding beam to send or receive data.

It should be noted that the three descriptions of TCI state, TCI-state and TCI state in this article can be used interchangeably.

For example, as shown in FIG3A , MAC CE is used to activate one or more TCI states. Each TCI state corresponds to a beam. Specifically, the MAC CE includes TCI state identifiers corresponding to the one or more TCI states. One TCI state can be mapped to one code point, or two TCI states can be mapped to one code point. The code point can be represented by one or more bits. Specifically, the number of bits included in the one or more bits is related to the number of TCI states activated by the MAC CE. The network device can indicate the corresponding code point through the TCI field in the DCI, thereby indicating the corresponding TCI state through the code point. For example, MAC CE activates two TCI states, and one TCI state is mapped to one code point, then the code point corresponding to each TCI state can be identified by 1 bit. For example, the value of code point 1 is 0, code point 1 is used to indicate a TCI state, and the value of code point 2 is 1, and code point 2 is used to indicate another TCI state. For another example, MAC CE activates three TCI states, one of which is mapped to code point 1, and the other two TCI states are mapped to code point 2.

In addition, as shown in FIG3A , the value of the D/U field in the MAC CE determines the type of TCI state activated by the MAC CE. As shown in FIG6 , the value of the D/U field in the row where Qct4 in the MAC CE is located is 0, then the terminal device can determine the last 7 in the row where Oct4 is located. The bit indicates the UL TCI state. If the value of the D/U field in the row where Oct5 in the MAC CE is located is 1, the terminal device can determine that the last 7 bits in the row where Oct5 is located indicate the joint/DL TCI state. For more information about the UL TCI state and the joint/DL TCI state, please refer to the relevant introduction below.

TCI mode: includes joint mode and separate mode. The joint mode means that the same beam is used for both uplink and downlink transmission between the TRP and the terminal device. The separate mode means that different beams are used for uplink transmission between the TRP and the terminal device and for downlink transmission between the TRP and the terminal device.

PHR MAC CE: used to report the power margin and the power attenuation corresponding to one or more reference signal resources. The power margin refers to the difference between the maximum transmission power allowed by the terminal device and the estimated power of the uplink transmission channel of the terminal device. The power attenuation corresponding to each reference signal resource refers to the power fallback value for the reference signal resource in order to meet the MPE application. Optionally, the one or more reference signal resources are downlink reference signal resources.

In this application, uplink TCI state, UL TCI state and UL TCI state can be replaced with each other, downlink/common TCI state, joint/DL TCI state and joint/DL TCI state can be replaced with each other. Downlink TCI state, DL TCI state and DL TCI state can be replaced with each other.

A possible format of PHR MAC CE is introduced below in conjunction with Figure 3B.

As shown in FIG3B , in the PHR MAC CE, when the frequency range 2 (FR2) frequency band is configured with the maximum power reduction reporting (mpe-Reporting-FR2) of the frequency range 2, and the power management maximum power reduction (P_MPR) is less than P-MPR_00, the value of the P field is set to 0, otherwise the value of the P field is set to 1. If the FR2 frequency band is not configured with mpe-Reporting-FR2 or the terminal device operates in the frequency range 1 (FR1) frequency band, the P field is used to indicate whether power backoff is performed. If power backoff is performed, _PCMAX,f,c will be set to different values, and the value of the P field is set to 1.

The R field is a reserved field. The PH field is used to indicate the power headroom level. The power headroom level is the difference between the estimated uplink transmission channel power of the terminal device and the maximum transmission power of the terminal device.

When mpe-Reporting-FR2 is configured for the FR2 band, and the value of the P field is equal to 1, the MPE field indicates the power backoff value applied to meet the power backoff value of MPE. The value of the MPE field is different for different power backoff values. See Table 2 for details. When mpe-Reporting-FR2 is not configured for the FR2 band, or the terminal device operates in the FR1 band, or the value of the P field is equal to 0, the MPE field is a reserved field.

Table 2

The Bi field is used to indicate whether the reference signal resource i exists. When the value of the Bi field is 1, it means that the reference signal resource i exists.

For the Pi field, when the FR band is configured with mpe-Reporting-FR2 and P-MPR is less than P-MPR_00, the value of the Pi field is set to 0; otherwise, the value of the Pi field is set to 1.

For the MPEi field, when mpe-Reporting-FR2-r17 is configured for the FR2 band and the P field is equal to 1, the MPEi field indicates the power backoff value applied to meet the MPE power backoff value. See Figure 2 for details. When mpe-Reporting-FR2 is not configured, or the terminal device operates in the FR1 band, or the value of the P field is equal to 0, the MPEi field is a reserved field.

Unified TCI (unified TCI) is introduced in R17. Unified TCI is a unified beam indication framework. The network device can indicate a beam to the terminal device, and the beam is used for multiple channels and/or reference signals at the same time. The beam can be understood as the common beam shown in the above technical terms. The common beam can be an uplink common beam, a downlink common beam, or an uplink and downlink common beam. The network device can indicate a common beam to the terminal device for the transmission of multiple uplink channels and/or multiple uplink reference signals. The terminal device can use the common beam The network device may also indicate a downlink common beam to the terminal device for transmission of multiple downlink channels and/or multiple downlink reference signals. The terminal device may use the downlink common beam for downlink transmission. Alternatively, the network device may also indicate an uplink and downlink common beam to the terminal device for transmission of multiple uplink channels, multiple uplink reference signals, multiple downlink channels and/or multiple downlink reference signals. The terminal device may use the uplink and downlink common beam for uplink and downlink transmission.

In R17, the network device can configure two TCI states for the terminal device, namely the downlink/common TCI state (joint/DL TCI state) and the UL TCI state. For example, the terminal device can configure up to 128 joint/DL TCI states and up to 64 UL TCI states at the same time. The beam corresponding to the UL TCI state can be used as the beam for the terminal device to perform uplink transmission. The beam corresponding to the UL TCI state can be understood as the uplink common beam introduced above. In the common mode, the joint/DL TCI state can be called the joint TCI state, and the beam corresponding to the joint TCI state is used as the beam for the terminal device to perform downlink and uplink transmission. The beam corresponding to the joint TCI state can be understood as the uplink and downlink common beam. In the separate mode, the joint/DL TCI state can be called the DL TCI state, and the beam corresponding to the DL TCI state is used as the beam for the terminal device to perform uplink transmission. The beam corresponding to the DL TCI state can be understood as the downlink common beam introduced above.

The network device can configure the TCI mode currently used by the terminal device in the serving cell configuration (serving cell config) in the RRC signaling. The TCI mode can be a common mode or a separate mode. In the common mode, the network device indicates the joint TCI state to the terminal device, and the joint TCI state can be used for both uplink and downlink transmission. In the separate mode, the network device indicates the DL TCI state and the UL TCI state to the terminal device, and the DL TCI state is used for downlink transmission, and the UL TCI state is used for uplink transmission.

As shown in Figure 3A above, if the RRC configures the terminal device to be in joint mode, the TCI state ID in the MAC CE is the identifier of the joint TCI state. If the RRC configures the terminal device to be in separate mode, the terminal device determines whether the TCI state ID is the DL TCI state or the UL TCI state based on the value of the D/U field in the MAC CE.

At present, taking into account the radiation of electromagnetic waves to the human body, MPE is defined, that is, MPE that specifies the field strength and power density of transmitters operating within a specific frequency range. When the network device configures the terminal device to use the common mode, the uplink beam and downlink beam used by the terminal device are the same. When the terminal device rotates, the posture changes, or the posture of the handheld terminal device changes, due to the limitation of MPE, the uplink beam and downlink beam with better signal quality are inconsistent. If the network device needs to reconfigure the terminal device to use the separation mode through RRC signaling, the configuration delay is large. Affecting the transmission efficiency of the terminal device. Therefore, how to quickly switch the terminal device to the separation mode is a problem worth considering.

The present application provides a corresponding technical solution for triggering a terminal device to switch from a common mode to a separate mode. It is not necessary for a network device to configure the terminal device to switch to a separate mode through RRC signaling, thereby reducing the switching delay and avoiding affecting the transmission efficiency of the terminal device. For details, please refer to the relevant introduction of the embodiments shown in Figures 4 and 5 below.

The technical solution of the present application is introduced below in conjunction with specific embodiments.

FIG4 is a schematic diagram of an embodiment of a method for sending measurement results and a method for receiving measurement results according to an embodiment of the present application. Referring to FIG4 , the method includes:

401. A terminal device measures one or more reference signal resources.

Specifically, the terminal device may measure the one or more reference signal resources according to the configuration information of the one or more reference signal resources to obtain the measurement results of the one or more reference signal resources.

Optionally, the measurement results of the one or more reference signal resources include the measurement results of each reference signal resource in the one or more reference signal resources.

Optionally, the measurement results of the one or more reference signal resources include at least one of the following: an index of the one or more reference signal resources, a reference signal receiving power (RSRP) of the one or more reference signal resources, a layer 1 interference signal-to-noise ratio (layer1-signal to Interference plus Noise Ratio, L1-SINR), a capability parameter (set) index (Capability[Set]Index), a rank indication (RI), a channel quality information (CQI), or a precoding matrix indication (precoding matrix indication).

Optionally, in an ORAN system, the above step 401 may be performed by an O-RU and/or O-DU network element shown in Table 1.

Optionally, the index of one or more reference signal resources can be an SSB resource index (SSB index) or a CSI-RS resource indicator (CSI-RS resource indicator, CRI).

402. The terminal device sends the measurement results of one or more reference signal resources and mode switching information to the network device. Correspondingly, the network device receives the measurement results of one or more reference signal resources and mode switching information from the terminal device.

Optionally, the mode switching information is used to indicate that the terminal device is to switch from the common mode to the separate mode, or the mode switching information is used to The terminal device requests to switch from the common mode to the separate mode. In other words, the mode switching information is used to trigger the terminal device to switch from the common mode to the separate mode; or, the mode switching information is used to inform the network device that the uplink beam and downlink beam that the terminal device should adopt are inconsistent; or, the mode switching information is used to inform the network device that the terminal device should switch from the common mode to the separate mode.

Optionally, the mode switching information is used to indicate that the terminal device will switch from the separate mode to the common mode, or the mode switching information is used by the terminal device to request to switch from the separate mode to the common mode. In other words, the mode switching information is used to trigger the terminal device to switch from the separate mode to the common mode; or the mode switching information is used to inform the network device that the terminal device should switch from the separate mode to the common mode.

Optionally, the mode switching information is used to indicate whether to switch the TCI mode adopted by the terminal device. The TCI mode includes a common mode and a separate mode. For example, the mode switching information indicates switching the TCI mode adopted by the terminal device. For example, the terminal device switches from the common mode to the separate mode. Alternatively, the terminal device switches from the separate mode to the common mode.

Optionally, the mode switching information is used to indicate the TCI mode adopted by the terminal device. For example, the mode switching information indicates that the terminal device adopts the common mode. Alternatively, the mode switching information indicates that the terminal device adopts the separate mode.

In a possible implementation, the measurement results of one or more reference signal resources and the mode switching information are carried in parallel in the measurement information. That is, the mode switching information is a new measurement result and exists in parallel with the measurement results of one or more reference signal resources in the measurement information.

In another possible implementation manner, the mode switching information is included in the measurement results of one or more reference signal resources, that is, the mode switching information is one of the measurement results of the one or more reference signal resources.

Some possible implementations of the mode switching information are described below.

Implementation method 1: the mode switching information is indicated through the first field.

Optionally, the first field is a field in the measurement information, or a field in the measurement results of one or more reference signal resources.

For example, as shown in Table 3, the measurement results of one or more reference signal resources include RSRP1 of CRI#1, RSRP2 of CRI#2, RSRP3 of CRI#3, and RSRP4 of CRI#4. The mode switching information is switch to separate mode (Switch to Separate) information, which is used to indicate that the terminal device will switch from the common mode to the separate mode, or for the terminal device to request to switch from the common mode to the separate mode.

Table 3

Optionally, the length of the first field is 1 bit or 2 bits, which is not specifically limited in this application.

In a possible implementation, when the value of the first field is 0, the first field is used to indicate that the terminal device is to switch from the common mode to the separate mode, or is used by the terminal device to request to switch from the common mode to the separate mode.

In this implementation, it should be noted that if the terminal device does not need to switch to the separate mode, the value of the first field may be 1, which is used to indicate that the terminal device continues to remain in the common mode.

In another possible implementation, when the value of the first field is 1, the first field is used to indicate that the terminal device is to switch from the common mode to the separate mode, or is used by the terminal device to request to switch from the common mode to the separate mode.

In this implementation, it should be noted that if the terminal device does not need to switch to the separate mode, the value of the first field may be 0, which is used to indicate that the terminal device continues to remain in the common mode.

The above is a case where the first field is used to indicate that the terminal device switches from the common mode to the separate mode. In practical applications, another possible indication method of the first field is introduced below.

Optionally, when the value of the first field is a first value, the mode switching information indicates that the terminal device will switch from a common mode to a separate mode, or the mode switching information is used by the terminal device to request switching from a common mode to a separate mode, or the mode switching information indicates switching the TCI mode adopted by the terminal device, or the mode switching information indicates that the terminal device adopts the separate mode. When the value of the first field is a second value, the mode switching information indicates that the terminal device will switch from a separate mode to a common mode, or the mode switching information is used by the terminal device to request switching from a separate mode to a common mode, or the mode switching information indicates not switching the TCI mode adopted by the terminal device, or the mode switching information indicates that the terminal device adopts the common mode. For example, the first value is 0 and the second value is 1; or the first value is 1 and the second value is 0.

Implementation method 2: The mode switching information is indicated by the second field, and the second field is used to indicate the identifier of one or more UL TCI states, or the second field is used to indicate the identifier of one or more reference signals. The identifier of the one or more UL TCI states or the identifier of the one or more reference signals are used as reference information indexes for uplink transmission by the terminal device.

In this implementation, the mode switching information is used to instruct the terminal device to switch from the common mode to the separate mode; or, the mode switching information is used by the terminal device to request to switch from the common mode to the separate mode; or, the mode switching information is used to instruct the terminal device to adopt the separate mode.

For example, as shown in Table 4, the measurement results of one or more reference signal resources include RSRP1 of CRI#1, RSRP2 of CRI#2, RSRP3 of CRI#3, and RSRP4 of CRI#4. The mode switching information includes UL TCI state id1 and UL TCI state id2, or the mode switching information includes RS id1 and RS id2. Among them, UL TCI state id can indicate the corresponding uplink beam, and the terminal device can perform uplink transmission through the uplink beam. RS id is used to indicate the reference signal index, and the terminal device determines the uplink beam for uplink transmission according to the reference signal; it can also be understood that the terminal device refers to the UL TCI state with the same reference signal index for uplink transmission; it can also be understood that the terminal device receives the reference signal through the downlink beam, the terminal device can determine the corresponding uplink beam through the downlink beam, and the terminal device can perform uplink transmission through the uplink beam. It can be seen from this that the terminal device implicitly or indirectly indicates that the terminal device will switch from the common mode to the separate mode through the identification of one or more UL TCI states, or the identification of one or more reference signals, or indicates that the terminal device requests to switch from the common mode to the separate mode.

Table 4

In one possible implementation, the identifiers of the one or more reference signals are identifiers of the one or more reference signals in a measurement set. The measurement set includes identifiers of reference signals configured by a network device for a terminal device. The reference signals corresponding to one or more reference signal resources in the above step 401 belong to the measurement set. For example, the measurement set includes identifiers of reference signals corresponding to 10 reference signal resources, which are identifiers 1 to 10 respectively. The identifiers of the one or more reference signals include identifier 1, identifier 4 and identifier 5. In this implementation, the identifiers of the one or more reference signals can be understood as global identifiers of the one or more reference signals.

In another possible implementation, the identifier of the one or more reference signals is a local identifier of the one or more reference signals in the reference signals corresponding to one or more reference signal resources. For example, the reference signals corresponding to the one or more reference signal resources include reference signals identified as 1, 5, 6 and 7 in the measurement set. The terminal device locally sorts the reference signals corresponding to the one or more reference signal resources, and obtains that the local identifier of the reference signal identified as 1 in the measurement set is 1, the local identifier of the reference signal identified as 5 in the measurement set is 2, the local identifier of the reference signal identified as 6 in the measurement set is 3, and the local identifier of the reference signal identified as 7 in the measurement set is 4. The identifiers of the one or more reference signals include a local identifier 1 and a local identifier 3. That is, the one or more reference signals include a reference signal with a local identifier 1 and a reference signal with a local identifier 3.

Optionally, the one or more reference signals are one or more reference signals in the reference signals corresponding to the one or more reference signal resources. Optionally, the one or more reference signals are one or more sounding reference signals (SRS) in a sounding reference signal resource set (SRS resource set) configured by the network device for the terminal.

Optionally, the reference signal identifier in the one or more UL TCI states is an SSB index (SSB index), or a CSI-RS resource index (CSI-RS index), or an SRS resource index (SRS-ResourceId).

It should be noted that if the terminal device does not need to switch to the separation mode, the second field may be a specific field, that is, the second field does not indicate any information, indicating that the terminal device continues to use the common mode.

Optionally, the measurement result of the one or more reference signal resources includes the first field in the above implementation mode 1. The first field indicates that the terminal device will switch from the common mode to the separate mode, or the first field is used by the terminal device to request to switch from the common mode to the separate mode, or the first field indicates the TCI mode adopted by the switching terminal device, or the first field indicates that the terminal device adopts the separate mode. The measurement result of one or more reference signal resources also includes a second field.

Implementation method 3: The mode switching information is indicated by the second field, and the second field is used to indicate the identifier of one or more UL TCI states, or the second field is used to indicate the identifier of one or more reference signals. The identifier of the one or more UL TCI states or the identifier of the one or more reference signals are used as reference information indexes for uplink transmission by the terminal device.

Among them, each UL TCI state identifier among the one or more UL TCI state identifiers is associated with a reference signal resource identifier among the one or more reference signal resource identifiers; or, each reference signal identifier among the one or more reference signal identifiers is associated with a reference signal resource identifier among the one or more reference signal resource identifiers.

Optionally, different reference signal resource identifiers are associated with the same UL TCI state identifier, or are associated with the same reference signal identifier. Alternatively, different reference signal resource identifiers are associated with different UL TCI state identifiers, or are associated with different reference signal identifiers. The examples below mainly use different reference signal resource identifiers associated with different UL TCI state identifiers, or are associated with different reference signal identifiers as an example for explanation.

Optionally, the same reference signal resource identifier is associated with multiple UL TCI state identifiers, or is associated with multiple reference signal identifiers. Alternatively, the same reference signal resource identifier is associated with a UL TCI state identifier, or is associated with a reference signal identifier. The following examples mainly use the example of the same reference signal resource identifier being associated with a UL TCI state identifier, or is associated with a reference signal identifier.

Optionally, the one or more UL TCI state identifiers correspond one-to-one with the one or more reference signal resource identifiers, that is, one reference signal resource identifier corresponds to one UL TCI state, and different reference signal resource identifiers correspond to different UL TCI states. Alternatively, the one or more reference signal identifiers correspond one-to-one with the one or more reference signal resource identifiers, that is, one reference signal resource identifier corresponds to one reference signal identifier, and different reference signal resource identifiers correspond to different reference signal identifiers.

For example, as shown in Table 5, the measurement results of one or more reference signal resources include RSRP1 of CRI#1, RSRP2 of CRI#2, RSRP3 of CRI#3, and RSRP4 of CRI#4. The mode switching information includes UL TCIstate id1 or RS id1 associated with CRI#1, UL TCI state id2 or RS id2 associated with CRI#2, UL TCI state id3 or RS id3 associated with CRI#3, and UL TCI state id4 or RS id4 associated with CRI#4. Among them, UL TCIstate id can indicate the corresponding uplink beam, and the terminal device can perform uplink transmission through the uplink beam. RS id is used to indicate the reference signal index, and the terminal device determines the uplink beam for uplink transmission based on the reference signal; it can also be understood that the terminal device refers to the UL state with the same reference signal index for uplink transmission; it can also be understood that the terminal device receives the reference signal through the downlink beam, the terminal device can determine the corresponding uplink beam through the downlink beam, and the terminal device can perform uplink transmission through the uplink beam. It can be seen that the terminal device implicitly indicates or indirectly indicates that the terminal device will switch from the common mode to the separate mode through the identification of one or more UL TCI states, or the identification of one or more reference signals, or indicates that the terminal device requests to switch from the common mode to the separate mode.

In this implementation, it should be noted that the identifier of the UL TCI state associated with each reference signal resource or the identifier of the associated reference signal can be understood as the mode switching information corresponding to each reference signal resource.

Table 5

For the identification of the one or more reference signals, please refer to the relevant introduction in the aforementioned implementation method 2, which will not be repeated here.

Optionally, the one or more reference signals are one or more reference signals among the reference signals corresponding to the one or more reference signal resources.

Optionally, the one or more reference signals are one or more sounding reference signals (SRS) in a sounding reference signal resource set (SRS resource set) configured by the network device for the terminal.

Optionally, the reference signal identifier in the one or more UL TCI states is an SSB index (SSB index), or a CSI-RS resource index (CSI-RS index), or an SRS resource index (SRS-ResourceId).

Optionally, the second field may be a field in the measurement information, or a field in the measurement results of one or more reference signal resources, which is not specifically limited in this application.

It should be noted that if the terminal device does not need to switch to the separate mode, the second field may be empty, that is, the second field does not indicate any information. The terminal device continues to use the common mode.

Implementation method 4: The mode switching information is indicated by one or more third fields. The one or more third fields correspond to part or all of the one or more reference signal resources, and each third field is used to indicate whether the reference signal on the reference signal resource corresponding to the third field can be used as a reference signal for uplink transmission.

Whether the reference signal on the reference signal resource corresponding to the third field can be used as a reference signal for uplink transmission means: the terminal device receives the reference signal through the downlink beam corresponding to the reference signal resource. The terminal device determines the corresponding uplink beam through the downlink beam. If the reference signal can be used as a reference signal for uplink transmission, it means that the terminal device can use the uplink beam for uplink transmission. If the reference signal cannot be used as a reference signal for uplink transmission, it means that the terminal device cannot use the uplink beam for uplink transmission. It can also be understood as whether the reference signal can be used as a reference signal for both uplink and downlink transmissions. It can also be understood as whether the TCI state containing the reference signal can be used as a transmit beam reference for uplink transmission, or a transmit and receive beam reference for uplink and downlink transmissions.

Optionally, the one or more third fields are fields in measurement information, or are fields in measurement results of the one or more reference signal resources.

Optionally, each of the one or more reference signal resources corresponds to a third field, and the third field is used to indicate whether the reference signal on the reference signal resource can be used as a reference signal for uplink transmission.

For example, as shown in Table 6, the measurement results of one or more reference signal resources include RSRP1 of CRI#1, RSRP2 of CRI#2, RSRP3 of CRI#3, and RSRP4 of CRI#4. The mode switching information includes JointTxRx1 corresponding to CRI#1, JointTxRx2 corresponding to CRI#2, JointTxRx3 corresponding to CRI#3, and JointTxRx4 corresponding to CRI#4. JointTxRx1 is used to indicate whether the CRI#1 can be used as a reference signal for uplink transmission. JointTxRx2 is used to indicate whether the CRI#2 can be used as a reference signal for uplink transmission. JointTxRx3 is used to indicate whether the CRI#3 can be used as a reference signal for uplink transmission. JointTxRx4 is used to indicate whether the CRI#4 can be used as a reference signal for uplink transmission.

Table 6

In this implementation, it should be noted that the third field corresponding to each reference signal resource can be understood as the mode switching information corresponding to each reference signal resource.

Optionally, the measurement results of one or more reference signal resources include one or more third fields in the above-mentioned implementation manner 4. Optionally, the measurement results of the one or more reference signal resources also include the second field in the above-mentioned implementation manner 3. The second field is used to indicate the identifier of the UL TCI state associated with the reference signal resource corresponding to some or all of the one or more third fields, or the identifier of the associated reference signal. Each third field in the part or all of the third fields indicates that the reference signal resource corresponding to the third field can be used as a reference signal for uplink transmission.

It should be noted that the measurement results of one or more reference signal resources and the mode switching information in the above step 401 can be sent simultaneously or separately, which is not specifically limited in this application.

It should be noted that in the above step 401, the terminal device can measure the measurement results of more reference signal resources, that is, the number of reference signal resources measured by the terminal device can be greater than the number of reference signal resources reported by the terminal device.

Optionally, in an ORAN system, the above step 402 may be performed by an O-RU and/or O-DU network element shown in Table 1.

Optionally, when the third condition is met, the terminal device sends mode switching information to the network device.

The third condition includes at least one of the following:

1. Among one or more reference signal resources reported by the terminal device, the power backoff required for the beam corresponding to at least one reference signal resource exceeds XdB due to MPE restriction;

Optionally, X is greater than or equal to 0. X may be a maximum power backoff amount specified in a communication protocol. When the power backoff amount used by the terminal device is greater than X, the terminal device may send mode switching information to the network device.

2. Among one or more reference signal resources reported by the terminal device, the power backoff required for the beam corresponding to at least one reference signal resource exceeds XdB due to MPE restriction;

3. The beam corresponding to the reference signal resource currently used by the terminal device cannot be used for uplink transmission due to MPE restrictions;

4. One or more reference signal resources reported by the terminal device are restricted by MPE and at least one reference signal resource cannot be used for uploading. Line transmission;

5. The beam corresponding to the reference signal resource currently used by the terminal device can only be used for downlink transmission but not for uplink transmission; or,

6. Among the one or more reference signal resources reported by the terminal device, at least one reference signal resource can only be used for downlink transmission but cannot be used for uplink transmission.

It should be noted that, in the above third condition, the one or more reference signal resources are reference signal resources for the terminal device to report the measurement results.

Optionally, the embodiment shown in FIG4 further includes step 401a. Step 401a may be performed before step 402.

401a. The network device sends first configuration information to the terminal device. The first configuration information is used to configure the terminal device to report mode switching information. Correspondingly, the terminal device receives the first configuration information from the network device.

Specifically, the network device can configure the terminal device to report mode switching information in the process of reporting the measurement results of one or more reference signal resources through the first configuration information. It can be seen that in this embodiment, the network device can configure the terminal device to report mode switching information in the process of reporting the measurement results of one or more reference signal resources. That is, the signaling format for the terminal device to report the measurement results can be fixed. For example, the terminal device reports measurement information, and the measurement information includes the measurement results of one or more reference signal resources and mode switching information. Alternatively, the terminal device reports the measurement results of one or more reference signal resources, and the measurement results of the one or more reference signal resources include mode switching information.

Optionally, the embodiment shown in FIG4 further includes step 401b. Step 401b may be performed before step 402.

401b. The network device sends the second configuration information to the terminal device. Correspondingly, the terminal device receives the second configuration information from the network device.

The second configuration information is used for a joint/DL TCI state list and a UL TCI state list. The joint/DL TCI state list includes multiple joint/DL TCI states, and the joint/DL TCI state list is used for downlink common beam indication or uplink and downlink common beam indication. The UL TCI state list includes multiple UL TCI states, and the UL TCI state list is used for uplink beam indication. For example, if the terminal device adopts the common mode, the joint/DL TCI state list is used for downlink common beam indication. If the terminal device adopts the separated mode, the joint/DL TCI state list is used for uplink and downlink common beam indication.

It should be noted that the first configuration information shown in the above step 401a and the second configuration information shown in step 401b can be the same configuration information or different configuration information, which is not specifically limited in this application.

It should be noted that there is no fixed execution order between step 401a and step 401b. For example, step 401a may be executed first, and then step 401b; or, step 401b may be executed first, and then step 401a; or, step 401a and step 401b may be executed simultaneously according to the circumstances, and this application does not limit this.

Optionally, the embodiment shown in FIG. 4 further includes step 401c, and step 401c may be performed before step 401b.

401c. The terminal device sends capability information to the network device. Correspondingly, the network device receives the capability information from the terminal device.

The capability information is used to indicate whether the terminal device supports simultaneous configuration of the joint/DL TCI status list and the UL TCI status list.

In an embodiment of the present application, a terminal device measures one or more reference signal resources. Then, the terminal device sends the measurement results and mode switching information of the one or more reference signal resources. The mode switching information is used to indicate that the terminal device will switch from a common mode to a separate mode, or the mode switching information is used by the terminal device to request to switch from a common mode to a separate mode. It can be seen that the terminal device can report the mode switching information when reporting the measurement results of the reference signal resources, thereby triggering the terminal device to switch from a common mode to a separate mode. This is conducive to realizing the rapid switching of the terminal device to the separate mode, without the need for the network device to configure the terminal device to switch to the separate mode through RRC signaling, thereby reducing the switching delay and avoiding affecting the transmission efficiency of the terminal device.

FIG5 is a schematic diagram of an embodiment of the information sending method and the information receiving method of the embodiment of the present application. Referring to FIG5, the method includes:

501. The terminal device determines mode switching information.

Optionally, the mode switching information is used to instruct the terminal device to switch the common mode to the separate mode, or the mode switching information is used by the terminal device to request to switch from the common mode to the separate mode. In other words, the mode switching information is used to trigger the terminal device to switch from the common mode to the separate mode; or the mode switching information is used to inform the network device that the uplink beam and the downlink beam that the terminal device should adopt are inconsistent; or the mode switching information is used to inform the network device that the terminal device should switch from the common mode to the separate mode.

Optionally, the mode switching information is used to indicate that the terminal device is to switch from the separate mode to the common mode, or the mode switching information is used by the terminal device to request to switch from the separate mode to the common mode. In other words, the mode switching information is used to trigger the terminal device to switch from the separate mode to the common mode. to a common mode; or, the mode switching information is used to inform the network device that the terminal device should switch from a separate mode to a common mode.

Optionally, the mode switching information is used to indicate whether to switch the TCI mode adopted by the terminal device. The TCI mode includes a common mode and a separate mode. For example, the mode switching information indicates switching the TCI mode adopted by the terminal device. For example, the terminal device switches from the common mode to the separate mode. Alternatively, the terminal device switches from the separate mode to the common mode.

Optionally, the mode switching information is used to indicate the TCI mode adopted by the terminal device. For example, the mode switching information indicates that the terminal device adopts the common mode. Alternatively, the mode switching information indicates that the terminal device adopts the separate mode.

In one possible implementation, the mode switching information is the first indication information, and the first indication information is used for the terminal device to switch from the common mode to the separate mode, or the first indication information is used for the terminal device to request to switch from the common mode to the separate mode, or the first indication information is used to indicate that the terminal device will switch from the separate mode to the common mode, or the first indication information is used for the terminal device to request to switch from the separate mode to the common mode, or the first indication information is used to indicate the TCI mode adopted by the terminal device, or the first indication information is used to instruct the terminal device to switch the TCI mode adopted by the terminal device.

In another possible implementation, the mode switching information includes one or more UL TCI state identifiers, and the one or more UL TCI state identifiers are used to indicate the reference information index of the uplink transmission of the terminal device; or the mode switching information includes one or more reference signal identifiers, and the one or more reference signal identifiers are used to indicate the reference information index of the uplink transmission of the terminal device.

Among them, the UL TCI status identifier can indicate the corresponding uplink beam, and the terminal device can perform uplink transmission through the uplink beam.

The reference signal identifier indicates that the terminal device determines the uplink beam for uplink transmission according to the reference signal; it can also be understood that the terminal device performs uplink transmission with reference to the UL state with the same reference signal; it can also be understood that the terminal device receives the reference signal through the downlink beam, the terminal device can determine the corresponding uplink beam through the downlink beam, and the terminal device can perform uplink transmission through the uplink beam. That is, if the terminal device needs to switch to the separation mode, the terminal device can select a UL TCI state from the one or more UL TCI states, and perform uplink transmission through the uplink beam corresponding to the UL TCI state. Alternatively, the terminal device can select a reference signal from the identifiers of the one or more reference signals, and determine the corresponding uplink beam through the downlink beam of the reference signal, and then perform uplink transmission through the uplink beam. It can be seen that the terminal device implicitly indicates or indirectly indicates that the terminal device will switch from the common mode to the separation mode through the identifiers of the one or more UL TCI states, or the identifiers of the one or more reference signals, or indicates that the terminal device requests to switch from the common mode to the separation mode.

Optionally, the mode switching information is carried in the first signaling. Optionally, the first signaling is RRC signaling, or MAC CE, or DCI, which is not specifically limited in this application.

Optionally, the first signaling includes one or more reference signal resource identifiers, or includes one or more TCI state identifiers. The one or more reference signal resource identifiers or the one or more TCI state identifiers are used to indicate a reference information index for downlink transmission of the terminal device.

Optionally, each UL TCI state identifier among the one or more UL TCI state identifiers is associated with a reference signal resource identifier among the one or more reference signal resource identifiers, or is associated with a TCI state identifier among the one or more TCI state identifiers; or, each reference signal identifier among the one or more reference signal identifiers is associated with a reference signal resource identifier among the one or more reference signal resource identifiers, or is associated with a TCI state identifier among the one or more TCI state identifiers.

Optionally, different reference signal resource identifiers are associated with the same UL TCI state identifier, or are associated with the same reference signal identifier. Alternatively, different reference signal resource identifiers are associated with different UL TCI state identifiers, or are associated with different reference signal identifiers. The examples below mainly use different reference signal resource identifiers associated with different UL TCI state identifiers, or are associated with different reference signal identifiers as an example for explanation.

Optionally, different TCI state identifiers are associated with the same UL TCI state identifier, or are associated with the same reference signal identifier. Alternatively, different TCI state identifiers are associated with different UL TCI state identifiers, or are associated with different reference signal identifiers. The examples below mainly use different TCI state identifiers associated with the same UL TCI state identifier, or are associated with the same reference signal identifier as an example for explanation.

Optionally, the same reference signal resource identifier is associated with multiple UL TCI state identifiers, or is associated with multiple reference signal identifiers. Alternatively, the same reference signal resource identifier is associated with a UL TCI state identifier, or is associated with a reference signal identifier. The following examples mainly use the example of the same reference signal resource identifier being associated with a UL TCI state identifier, or is associated with a reference signal identifier.

Optionally, the same TCI state identifier is associated with multiple UL TCI state identifiers, or is associated with multiple reference signal identifiers. Alternatively, the same TCI state identifier is associated with a UL TCI state identifier, or is associated with a reference signal identifier. The following examples mainly use the example of the same TCI state identifier being associated with a UL TCI state identifier, or is associated with a reference signal identifier.

Optionally, the one or more UL TCI state identifiers correspond to the one or more reference signal resource identifiers one by one, that is, one reference signal resource identifier corresponds to the one or more UL TCI state identifiers. The reference signal resource identifier corresponds to one UL TCI state, and different reference signal resource identifiers correspond to different UL TCI states. Alternatively, the one or more reference signal identifiers correspond one to one with the one or more reference signal resource identifiers, that is, one reference signal resource corresponds to one reference signal identifier, and different reference signal resources correspond to different reference signal identifiers.

Optionally, the one or more UL TCI state identifiers correspond one-to-one with the one or more TCI state identifiers, that is, one TCI state identifier corresponds to one UL TCI state, and different TCI state identifiers correspond to different UL TCI states. Alternatively, the one or more reference signal identifiers correspond one-to-one with the one or more TCI state identifiers, that is, one reference signal resource corresponds to one TCI state identifier, and different reference signal resources correspond to different TCI state identifiers.

Optionally, the first signaling is a PHR MAC CE. For example, as shown in FIG6 , four reference signal resources are indicated in the PHR MAC CE, namely, resource 1 (Resource 1) to resource 4 (Resource 4). The PHR MAC CE also indicates UL TCI state identifier 1 to UL TCI state identifier 4, or reference signal identifier 1 to reference signal identifier 4. Resource 1 is associated with UL TCI state identifier 1 or reference signal identifier 1. Resource 2 is associated with UL TCI state identifier 2 or reference signal identifier 2. Resource 3 is associated with UL TCI state identifier 3 or reference signal identifier 3. Resource 4 is associated with UL TCI state identifier 4 or reference signal identifier 4. Optionally, the mode switching information may be a field in the PHR MAC CE. For the mode switching information, please refer to the relevant introduction in the aforementioned step 501.

It should be noted that the PHR MAC CE shown in FIG. 6 is only an example. In practical applications, the PHR MAC CE may also be in other formats, which is not limited in this application. For example, as shown in FIG. 7 , four reference signal resources are indicated in the PHR MAC CE, namely, resource 1 (Resource 1) to resource 4 (Resource 4). The PHR MAC CE also indicates UL TCI state identifier 1 to UL TCI state identifier 4, or reference signal identifier 1 to reference signal identifier 4. UL TCI state identifier 1 to UL TCI state identifier 4 or reference signal identifier 1 to reference signal identifier 4 correspond to the four reference signal resources in the order of the resources indicated by the PHR MAC CE. That is, resource 1 is associated with UL TCI state identifier 1 or reference signal identifier 1. Resource 2 is associated with UL TCI state identifier 2 or reference signal identifier 2. Resource 3 is associated with UL TCI state identifier 3 or reference signal identifier 3. Resource 4 is associated with UL TCI state identifier 4 or reference signal identifier 4.

The PHR MAC CE shown in FIG6 and FIG7 is introduced by taking each reference signal resource as being associated with a UL TCI state identifier or a reference signal identifier as an example. In practical applications, only some of the one or more reference signal resources may have an associated UL TCI state identifier or a reference signal identifier, which is not specifically limited in this application.

Optionally, the PHR MAC CE includes one or more reference signal resource identifiers and a power attenuation amount corresponding to each reference signal resource identifier among the one or more reference signal resource identifiers.

Optionally, there is an R field in the byte where each field for indicating a reference signal resource in the PHR MAC CE is located, and the R field is used to indicate whether the reference signal resource is associated with an identifier of a UL TCI state or an identifier of a reference signal. When the R field indicates that the reference signal resource is associated with an identifier of a UL TCI state or an identifier of a reference signal, the mode switching information is used to indicate that the terminal device will switch from a common mode to a separate mode, or the mode switching information is used for the terminal device to request switching from a common mode to a separate mode, or the mode switching information is used to indicate that the terminal device adopts a separate mode. When the R field indicates that the reference signal is not associated with an identifier of a UL TCI state or an identifier of a reference signal, the mode switching information is used to indicate that the terminal device will switch from a separate mode to a common mode, or the mode switching information is used for the terminal device to request switching from a separate mode to a common mode, or the mode switching information is used to indicate that the terminal device adopts a common mode.

For example, when the value of the R field is 1, it indicates that the reference signal resource is associated with the UL TCI state identifier or the reference signal identifier; when the value of the R field is 0, it indicates that the reference signal resource is not associated with the UL TCI state identifier or the reference signal identifier. As shown in FIG6, the value of the first R field in the byte where resource 1 is located (i.e., Qct5 in PHR MAC CE) is 1, indicating that resource 1 has an associated UL TCI state identifier or a reference signal identifier. That is, as shown in FIG6, resource 1 is associated with UL TCI state identifier 1 or reference signal identifier 1. The value of the first R field in the byte where resource 2 is located (i.e., Qct7 in PHR MAC CE) is 1, indicating that resource 2 has an associated UL TCI state identifier or a reference signal identifier. That is, as shown in FIG6, resource 2 is associated with UL TCI state identifier 2 or reference signal identifier 2. The value of the first R field in the byte where resource 3 is located (i.e., Qct7 in PHR MAC CE) is 1, indicating that resource 3 has an associated UL TCI state identifier or a reference signal identifier. That is, as shown in FIG6 , resource 3 is associated with UL TCI state identifier 3 or reference signal identifier 3. The value of the first R field in the byte where resource 4 is located (i.e., Qct7 in PHR MAC CE) is 1, indicating that resource 4 has an associated UL TCI state identifier or reference signal identifier. That is, as shown in FIG6 , resource 4 is associated with UL TCI state identifier 4 or reference signal identifier 4.

For another example, when the value of the R field is 0, it indicates that the reference signal resource is not associated with the UL TCI state identifier or the reference signal identifier; when the value of the R field is 1, it indicates that the reference signal resource is associated with the UL TCI state identifier or the reference signal identifier.

Optionally, the Pi field in the PHR MAC CE is used to indicate whether the reference signal resource i in the one or more reference signal resources is closed. An identifier of the UL TCI state or an identifier of a reference signal.

For example, when the value of the Pi field is 1, it indicates that the reference signal resource i is associated with the UL TCI state identifier or the reference signal identifier; when the value of the Pi field is 0, it indicates that the reference signal resource i is not associated with the UL TCI state identifier or the reference signal identifier. As shown in FIG6, four reference signal resources are indicated in the PHR MAC CE, namely, resource 1 (Resource1) to resource 4 (Resource4). The PHR MAC CE also indicates UL TCI state identifier 1 to UL TCI state identifier 4, or reference signal identifier 1 to reference signal identifier 4. The value of the P1 field is 1, indicating that resource 1 has an associated UL TCI state identifier or a reference signal identifier. That is, as shown in FIG6, resource 1 is associated with UL TCI state identifier 1 or reference signal identifier 1. The value of the P2 field is 1, indicating that resource 2 has an associated UL TCI state identifier or a reference signal identifier. That is, as shown in FIG6, resource 2 is associated with UL TCI state identifier 2 or reference signal identifier 2. The value of the P3 field is 1, indicating that resource 3 has an associated UL TCI state identifier or reference signal identifier. That is, as shown in FIG6 , resource 3 is associated with UL TCI state identifier 3 or reference signal identifier 3. The value of the P4 field is 1, indicating that resource 4 has an associated UL TCI state identifier or reference signal identifier. That is, as shown in FIG6 , resource 4 is associated with UL TCI state identifier 4 or reference signal identifier 4.

For another example, when the value of the Pi field is 0, it indicates that the reference signal resource i is associated with the UL TCI state identifier or the reference signal identifier; when the value of the Pi field is 1, it indicates that the reference signal resource i is not associated with the UL TCI state identifier or the reference signal identifier.

It should be noted that if the terminal device does not need to switch to the separation mode, the PHR MAC CE may not include the mode switching information. In other words, the format of the PHR MAC CE is not fixed.

In another possible implementation, the first signaling is a newly defined MAC CE, which includes one or more reference signal resource identifiers, or includes one or more TCI state identifiers. Optionally, the mode switching information may be a field in the MAC CE. For the mode switching information, please refer to the relevant introduction in the aforementioned step 501.

The first signaling further includes one or more fourth fields, which correspond to one or more reference signal resource identifiers, or the one or more fourth fields correspond to the one or more TCI state identifiers. Each fourth field is used to indicate whether the reference signal resource identifier or TCI state identifier corresponding to the fourth field has an associated UL TCI state identifier or an associated reference signal identifier.

For example, the value of the fourth field is 0, indicating that the reference signal resource identifier or TCI state identifier corresponding to the fourth field has an associated UL TCI state identifier or an associated reference signal identifier; the value of the fourth field is 1, indicating that the reference signal resource identifier or TCI state identifier corresponding to the fourth field does not have an associated UL TCI state identifier or an associated reference signal identifier.

For another example, the value of the fourth field is 1, indicating that the reference signal resource identifier or TCI state identifier corresponding to the fourth field has an associated UL TCI state identifier or an associated reference signal identifier; the value of the fourth field is 0, indicating that the reference signal resource identifier or TCI state identifier corresponding to the fourth field does not have an associated UL TCI state identifier or an associated reference signal identifier.

Optionally, each of the one or more reference signal resources corresponds to a fourth field, and the fourth field is used to indicate whether the reference signal resource has an associated UL TCI state identifier or an associated reference signal identifier. Different reference signal resources correspond to different fourth fields. For example, as shown in Table 7, the first signaling includes one or more reference signal resource identifiers or one or more TCI state identifiers. The first signaling also includes a fourth field corresponding to each of the one or more reference signal resources, or a fourth field corresponding to each TCI state in the one or more TCI states. The value of the fourth field is 0 or 1. When the value of the fourth field is 0, it indicates that the reference signal resource corresponding to the fourth field does not have an associated UL TCI state identifier or an associated reference signal identifier. When the value of the fourth field is 1, it indicates that the reference signal resource corresponding to the fourth field has an associated UL TCI state identifier or an associated reference signal identifier.

Table 7

Optionally, the first signaling also includes a second field, and the second field is used to indicate whether the first signaling includes a UL TCI status identifier or a reference signal identifier.

Optionally, the first signaling further includes a third field, and the third field is used to trigger the terminal device to switch from the common mode to the separate mode. For example, as shown in FIG6 , the first signaling is a PHR MAC CE, and a certain R field in the PHR MAC CE is used to trigger the terminal device to switch from the common mode to the separate mode. The method is used to switch from common mode to separate mode, or to inform the network device that the uplink beam and downlink beam that the terminal device should adopt are inconsistent, or to inform the network device that the terminal device should switch from common mode to separate mode, or to trigger the terminal device to switch from separate mode to common mode, or to inform the network device that the terminal device should switch from separate mode to common mode.

502. The terminal device sends mode switching information to the network device. Correspondingly, the network device receives the mode switching information from the terminal device.

Optionally, when the first condition is met, the terminal device sends mode switching information to the network device.

The first condition includes at least one of the following:

1. The power backoff required by the beam corresponding to the reference signal resource currently used by the terminal device due to MPE limitation exceeds X decibels (dB), where X is greater than or equal to 0;

2. Among one or more reference signal resources reported by the terminal device, the power backoff required for the beam corresponding to at least one reference signal resource exceeds XdB due to MPE restriction;

3. The beam corresponding to the reference signal resource currently used by the terminal device cannot be used for uplink transmission due to MPE restrictions;

4. Among the one or more reference signal resources reported by the terminal device, at least one reference signal resource cannot be used for uplink transmission due to MPE restrictions;

5. The beam corresponding to the reference signal resource currently used by the terminal device can only be used for downlink transmission but not for uplink transmission; or,

6. Among the one or more reference signal resources reported by the terminal device, at least one reference signal resource can only be used for downlink transmission but cannot be used for uplink transmission.

It should be noted that, in the above-mentioned first condition, when the terminal device reports the mode switching information in the process of reporting the measurement results of the reference signal resources, the one or more reference signal resources are the reference signal resources for the terminal device to report the measurement results. When the terminal device uses PHR MAC CE to report the mode switching information, the one or more reference signal resources are the reference signal resources for the terminal device to report the measurement results, or the reference signal resources reported in the PHR MAC CE. When the terminal device uses other signaling to report the mode switching information (for example, the newly defined MAC CE), the one or more reference signal resources are the reference signal resources for the terminal device to report the measurement results, or the reference signal resources reported in the PHR MAC CE, or any reference signal resource in the configured reference signal resource set.

In an embodiment of the present application, the terminal device determines mode switching information. The mode switching information is used to instruct the terminal device to switch the common mode to the separate mode, or the mode switching information is used by the terminal device to request to switch from the common mode to the separate mode. The terminal device sends the mode switching information to the network device. It can be seen that the terminal device reports the mode switching information, thereby triggering the terminal device to switch from the common mode to the separate mode. This is conducive to realizing the rapid switching of the terminal device to the separate mode, without the need for the network device to configure the terminal device to switch to the separate mode through RRC signaling, thereby reducing the switching delay and avoiding affecting the transmission efficiency of the terminal device.

FIG8 is a schematic diagram of another embodiment of the information sending method and information receiving method of the embodiment of the present application. Referring to FIG8 , the method includes:

801. The network device sends a first MAC CE or a first DCI to the terminal device. Correspondingly, the terminal device receives the first MAC CE or the first DCI from the network device.

In a possible implementation, the first MAC CE or the first DCI is used to instruct the terminal device to switch from the common mode to the separate mode. Alternatively, the first MAC CE or the first DCI is used to instruct the terminal device to adopt the separate mode.

In this implementation, optionally, after the terminal device receives the first MAC CE or the first DCI, the terminal device switches from the common mode to the separate mode. That is, the terminal device performs the TCI mode switching, and the terminal device does not change the uplink beam and the downlink beam used by the terminal device. It can be understood that the TCI mode switching of the terminal device is successful.

In this embodiment, optionally, after the terminal device receives the first MAC CE or the first DCI, the terminal device switches from the common mode to the separate mode. Then, the terminal device updates the uplink beam used by the terminal device through a corresponding implementation method. Optionally, the terminal device also updates the downlink beam used by the terminal device. The terminal device switches to the separate mode and updates the uplink beam and downlink beam of the terminal device, which can be understood as the successful TCI mode switching of the terminal device.

Optionally, the embodiment shown in FIG8 can be performed independently, that is, the embodiment shown in FIG8 is not dependent on the embodiment shown in FIG4 or FIG5. Alternatively, the embodiment shown in FIG8 can also be performed after the embodiment shown in the aforementioned FIG4 or FIG5. That is, after the network device receives the mode switching information, the network device can perform the above step 801.

Optionally, the first MAC CE is further used to activate one or more TCI states, where the one or more TCI states correspond to one or more code points. Each code point corresponds to one or two TCI states. At least one TCI code point among the one or more code points corresponds to two TCI state, the two TCI states include a DL TCI state and a UL TCI state. And/or, the TCI state corresponding to at least one code point among the one or more code points includes a UL TCI state. Thereby implicitly indicating that the terminal device switches to a separate mode. Optionally, the UL TCI state activated in the first MAC CE includes the UL TCI state reported in the embodiment shown in Figure 4 or Figure 5 above.

Optionally, the reference signal resources in one or more TCI states activated by the first MAC CE may include one or more reference signal resources reported by the terminal device in the embodiment shown in FIG. 4 or 5. Alternatively, optionally, the one or more TCI states activated by the first MAC CE include the TCI states reported by the terminal device in the embodiment shown in FIG. 5. Optionally, the one or more TCI states are DL TCI states or joint TCI states.

Optionally, there is at least one Pi field in the first MAC CE whose value is 1. The TCI state corresponding to the at least one Pi field exists in the UL TCI state. That is, the TCI state activated by the first MAC CE includes the UL TCI state. Thereby implicitly indicating that the terminal device switches to the separation mode. For example, as shown in FIG3A , the value of the P1 field in the first MAC CE is 1, and the P1 field corresponds to the TCI state identifier 1 in the Oct4 byte in the first MAC CE, and the TCI state identifier 1 is the UL TCI state identifier.

Optionally, the first MAC CE has at least one D/U field with a value of 0, indicating that the TCI state activated in the byte where the D/U field is located is the UL TCI state. This implicitly indicates that the terminal device switches to the separation mode. For example, as shown in FIG3A , the value of the D/U field in the Oct4 byte in the first MAC CE is 0, indicating that the TCI state identifier 1 is the UL TCI state identifier.

Optionally, the first MAC CE or the first DCI includes a first field, and the first field is used to indicate that the terminal device switches from the common mode to the separate mode. For example, a certain R field in the first MAC CE is used to indicate that the terminal device switches from the common mode to the separate mode. This enables the terminal device to quickly switch to the separate mode.

In another possible implementation, the first MAC CE or the first DCI is used to instruct the terminal device to switch from the separate mode to the common mode; or, the first MAC CE or the first DCI is used to instruct the terminal device to adopt the common mode.

Optionally, the first MAC CE is also used to activate one or more TCI states, and the one or more TCI states correspond to one or more code points. Each of the one or more code points corresponds to only one TCI state, and the TCI state is a common TCI state. This implicitly indicates that the terminal device switches to a common mode or works in a common mode.

For example, the value of all Pi fields in the first MAC CE is 0, indicating that the TCI state indicated in the Qct4 to QctN+3 bytes in the first MAC CE is the common TCI state.

For another example, the value of all D/U fields in the first MAC CE is 1, indicating that the TCI state indicated in the Qct4 to QctN+3 bytes in the first MAC CE is a common TCI state. Alternatively, a field in the first MAC CE indicates that the terminal device adopts a common mode. For example, the R field in the first MAC CE.

Optionally, the embodiment shown in FIG8 further includes step 802. Step 802 may be performed after step 801.

802. The network device sends a second DCI to the terminal device. The second DCI is used to indicate the first code point. Correspondingly, the terminal device receives the first DCI from the network device.

The first code point is one of the one or more code points.

In a possible implementation, the first code point corresponds to two TCI states, and the two TCI states include a DL TCI state and a UL TCI state. This facilitates the terminal device to update the uplink and downlink beams used by the terminal device.

In another possible implementation, the TCI state corresponding to the first code point includes the UL TCI state. In this implementation, the network device may only update the uplink beam used by the terminal device, that is, the first code point may only correspond to the UL TCI state. Alternatively, the network device may update the uplink beam and the downlink beam used by the terminal device, then the TCI state corresponding to the first code point also includes the DL TCI state.

In another possible implementation, the first code point corresponds to a common TCI state. The common TCI state is used for uplink and downlink transmission, so that the terminal device updates the uplink and downlink beams used by the terminal device.

In another possible implementation, the TCI state corresponding to the first code point includes a common TCI state, so that the terminal device updates the uplink and downlink beams used by the terminal device.

Optionally, the embodiment shown in FIG8 further includes step 803. Step 803 may be performed after step 802.

803. The terminal device performs uplink transmission according to the UL TCI state of the two TCI states corresponding to the first code point, or the terminal device performs uplink transmission according to the UL TCI state included in the TCI state corresponding to the first code point.

Optionally, the TCI state corresponding to the first code point also includes a DL TCI state. The terminal device performs downlink transmission according to the DL TCI state.

Optionally, the above step 803 specifically includes: the terminal device performs uplink transmission through the uplink power control parameters (ul-powerControl) and path loss reference signal (pathlossReferenceRS) associated with the UL TCI state.

Optionally, the embodiment shown in FIG. 8 further includes step 804 , and step 804 may be performed after step 802 .

804. The terminal device performs uplink and downlink transmission according to the common TCI state in the TCI state corresponding to the first code point.

It can be seen that in the embodiment shown in FIG. 8 above, the terminal device receives the first MAC CE or the first DCI from the network device. The first MAC CE or the first DCI is used to instruct the terminal device to switch from the common mode to the separate mode, or to instruct the terminal device to switch from the separate mode to the common mode. Thereby, the terminal device can quickly switch to the separate mode or the common mode according to the first MAC CE or the first DCI. There is no need for the network device to configure the terminal device to switch to the separate mode or the common mode through RRC signaling, thereby reducing the switching delay and avoiding affecting the transmission efficiency of the terminal device.

FIG9 is a schematic diagram of another embodiment of the information sending method and information receiving method of the embodiment of the present application. Referring to FIG9 , the method includes:

In the embodiment shown in FIG. 4 or FIG. 5 above, the mode switching information indicates an identifier of a UL TCI state or an identifier of a reference signal. For this case, the implementation method of the terminal device performing uplink transmission is introduced below in combination with step 901.

901. When the mode switching information indicates a UL TCI state identifier or a reference signal identifier, the terminal device performs uplink transmission according to the UL TCI state identifier or the reference signal identifier.

Optionally, when the first condition is met, the terminal device performs uplink transmission according to the identifier of the UL TCI state or the identifier of the reference signal.

The first condition includes one or more of the following:

1. After the terminal device sends the mode switching information, a first duration has passed. Optionally, the first duration is K microseconds, X time slots, or M time domain symbols. K, X, and M are all integers greater than or equal to 1. For example, K is 3, X is 1, and M is 2.

2. After the terminal device receives the ACK from the network device, a second time period has passed, and the ACK is used to indicate that the network device has successfully received the mode switching information. Optionally, the second time period is N microseconds. For example, the second time period is 3 microseconds.

3. The terminal device receives first indication information from the network device, where the first indication information is used to instruct the terminal device to use a UL TCI state identifier or a reference signal identifier for uplink transmission.

4. The terminal device receives second indication information from the network device, where the second indication information is used to instruct the terminal device to switch to the separation mode.

5. The terminal device receives third indication information from the network device, where the third indication information is used to indicate a TCI state, and the reference signal identifier in the TCI state is a reference signal identifier corresponding to one of the one or more reference signal resources.

The TCI state is used by the terminal device for downlink transmission, that is, the TCI state is used to indicate the corresponding downlink beam.

Optionally, the above step 901 specifically includes: the terminal device performs uplink transmission through the uplink power control parameters and path loss reference signal associated with the UL TCI state; or, the terminal device performs uplink transmission through the uplink power control parameters and path loss reference signal associated with the TCI state containing the identifier of the reference signal indicating the mode switching information; or, the terminal device uses the uplink power control parameters and path loss reference signal configured in the BWP uplink indication (BWP-UplinkDedicated) configured by the network device for the terminal device for uplink transmission.

In the embodiment shown in FIG. 4 or FIG. 5 above, the mode switching information indicates multiple UL TCI state identifiers or multiple reference signal identifiers. In this case, the present application provides two possible implementation methods for the terminal device to perform uplink transmission.

Implementation method 1 is described below in conjunction with step 902 to step 903 .

902. When the mode switching information indicates multiple UL TCI state identifiers or multiple reference signal identifiers, the network device sends fourth indication information to the terminal device. The fourth indication information is used to indicate the use of the first UL TCI state identifier or the first reference signal identifier. Accordingly, the terminal device receives the fourth indication information from the network device.

Optionally, the identifier of the first UL TCI state is the identifier of the UL TCI state with the largest or smallest identifier among the multiple UL TCI states, which is not specifically limited in this application. The identifier of the first reference signal is the identifier of the reference signal with the largest or smallest identifier among the multiple reference signals, which is not specifically limited in this application.

903. The terminal device performs uplink transmission according to the identifier of the first UL TCI state or the identifier of the first reference signal.

Optionally, the above step 903 specifically includes: the terminal device performs uplink transmission through the uplink power control parameters and path loss reference signal associated with the first UL TCI state; or, the terminal device performs uplink transmission through the uplink power control parameters and path loss reference signal associated with the TCI state containing the identifier of the first reference signal; or, the terminal device uses the uplink power control parameters and path loss reference signal configured in the BWP uplink indication configured by the network device for the terminal device for uplink transmission.

The following combines step 904 to implement method 2.

904. The terminal device uses one of the multiple UL TCI state identifiers or one of the multiple reference signal identifiers for uplink transmission according to a preset rule.

Optionally, the preset rule includes that the terminal device uses the identifier of the UL TCI state that identifies the smallest or largest UL TCI state among the multiple UL TCI states for uplink transmission; or, the terminal device uses the identifier of the reference signal that identifies the smallest or largest reference signal among the multiple reference signals for uplink transmission. Of course, the terminal device can also use other preset rules to select the corresponding UL TCI state identifier or reference signal identifier for uplink transmission, which is not specifically limited in this application.

The embodiment shown in FIG. 9 above shows a case where the mode switching information indicates an identifier of a UL TCI state or an identifier of a reference signal, and shows the implementation process of the terminal device performing uplink transmission. The embodiment shown in FIG. 9 above also shows a case where the mode switching information indicates multiple identifiers of UL TCI states or multiple identifiers of reference signals, and shows the implementation process of the terminal device performing uplink transmission. This enables the terminal device to quickly switch to the separation mode and update the uplink beam used by the terminal device. This improves the transmission performance of the terminal device and avoids affecting the transmission efficiency of the terminal device.

FIG10 is a schematic diagram of another embodiment of the information sending method and information receiving method of the embodiment of the present application. Referring to FIG10 , the method includes:

In the embodiment shown in FIG. 4 or FIG. 5 above, the mode switching information indicates one or more UL TCI state identifiers, or one or more reference signal identifiers. In the embodiment shown in FIG. 4, each UL TCI state identifier in the one or more UL TCI state identifiers is associated with a reference signal resource. Alternatively, each reference signal identifier in the one or more reference signal identifiers is associated with a reference signal resource. In the embodiment shown in FIG. 5, each UL TCI state in the one or more UL TCI state identifiers is associated with a reference signal resource or a TCI state identifier. Alternatively, each reference signal identifier in the one or more reference signal identifiers is associated with a reference signal resource or a TCI state identifier.

For this situation, the present application provides two possible implementation methods for the terminal device to perform uplink transmission.

Implementation method 1 is introduced below in conjunction with step 1001.

1001. The terminal device performs uplink transmission according to the identifier of the UL TCI state associated with the reference signal resource currently used by the terminal device for transmission or the identifier of the associated reference signal.

Optionally, in the above step 1001, the reference signal resource currently used for transmission by the terminal device is one of the one or more reference signal resources in the embodiment shown in Figure 4 above; or, the reference signal resource currently used for transmission by the terminal device is one of the reference signal resources corresponding to one or more reference signal resource identifiers included in the first signaling of the embodiment shown in Figure 5 above; or, the TCI state currently used by the terminal device is one of the TCI states corresponding to one or more TCI state identifiers included in the first signaling in the embodiment shown in Figure 5 above; or, the reference signal resource in the TCI state currently used by the terminal device is one of the one or more reference signal resources in the embodiment shown in Figure 4 above; or, the reference signal resource in the TCI state currently used by the terminal device is one of the one or more reference signal resources in the embodiment shown in Figure 5 above.

Optionally, when the second condition is met, the terminal device performs uplink transmission according to the identifier of the UL TCI state associated with the reference signal resource currently used by the terminal device for transmission or the identifier of the associated reference signal.

The second condition includes one or more of the following:

1. After the terminal device sends the mode switching information, a first time period has passed. For the first time period, please refer to the above related introduction.

2. The terminal device receives fifth indication information from the network device. The fifth indication information is used to instruct the terminal device to use the identifier of the UL TCI state associated with the reference signal resource currently used by the terminal device or the identifier of the associated reference signal for uplink transmission; or, the fifth indication information is used to instruct the terminal device to use the identifier of the UL TCI state associated with the TCI state currently used by the terminal device or the identifier of the associated reference signal for uplink transmission.

3. The terminal device receives second indication information from the network device, where the second indication information is used to instruct the terminal device to switch to the separation mode.

4. After the terminal device receives the ACK from the network device, a second period of time has passed. The ACK is used to indicate that the network device has successfully received the mode switching information.

Optionally, the above step 1001 specifically includes: the terminal device uses the uplink power control parameters and path loss reference signal associated with the UL TCI state for uplink transmission; or, the terminal device uses the uplink power control parameters and path loss reference signal associated with the TCI state containing the identifier of the reference signal for uplink transmission; or, the terminal device uses the uplink power control parameters and path loss reference signal configured in the BWP uplink indication configured by the network device for the terminal device for uplink transmission.

Implementation method 2 is introduced below in combination with step 1002 to step 1003.

1002. The network device sends third indication information to the terminal device. The third indication information is used to indicate the TCI state. Correspondingly, the terminal device receives the third indication information from the network device.

The identifier of the reference signal in the TCI state is an identifier of a reference signal corresponding to one of the one or more reference signal resources. The TCI state is used for downlink transmission by the terminal device, that is, the TCI state is used to indicate the corresponding downlink beam.

1003. The terminal device performs uplink transmission according to the identifier of the UL TCI state associated with the reference signal resource or the identifier of the associated reference signal.

The reference signal resource is a reference signal resource including an identifier of a reference signal in a TCI state indicated by third indication information among the one or more reference signal resources.

Optionally, the above step 1003 specifically includes: the terminal device adopts the uplink power control parameters and path loss reference signal associated with the UL TCI state for uplink transmission; or, the terminal device adopts the uplink power control parameters and path loss reference signal associated with the TCI state containing the identifier of the reference signal for uplink transmission; or, the terminal device adopts the uplink power control parameters and path loss reference signal configured in the BWP uplink indication configured by the network device for the terminal device for uplink transmission.

The embodiment shown in FIG. 10 above shows the implementation process of uplink transmission by the terminal device, so that the terminal device can quickly switch to the separation mode and update the uplink beam used by the terminal device, thereby improving the transmission performance of the terminal device and avoiding the impact on the transmission efficiency of the terminal device.

The communication device provided in the embodiment of the present application is described below.

Fig. 11 is a schematic diagram of a structure of a communication device according to an embodiment of the present application. Referring to Fig. 11, the communication device can be used to execute the process executed by the terminal device in any of the embodiments shown in Fig. 4, Fig. 5, Fig. 8 to Fig. 10. For details, please refer to the relevant introduction in the above method embodiment.

The communication device 1100 includes a transceiver module 1101 and a processing module 1102 .

The processing module 1102 is used for data processing. The transceiver module 1101 can realize the corresponding communication function. The transceiver module 1101 can also be called a communication interface or a communication module.

Optionally, the communication device 1100 may further include a storage module, which may be used to store instructions and/or data. The processing module 1102 may read the instructions and/or data in the storage module so that the communication device implements the aforementioned method embodiment.

The communication device module 1100 can be used to perform the actions performed by the terminal device in the above method embodiment. The communication device 1100 can be a terminal device or a component that can be configured in a terminal device. The processing module 1102 is used to perform the processing-related operations on the terminal device side in the above method embodiment. The transceiver module 1101 is used to perform the reception-related operations on the terminal device side in the above method embodiment.

Optionally, the transceiver module 1101 may include a sending module and a receiving module. The sending module is used to perform the sending operation in the above method embodiment. The receiving module is used to perform the receiving operation in the above method embodiment.

It should be noted that the communication device 1100 may include a sending module but not a receiving module. Alternatively, the communication device 1100 may include a receiving module but not a sending module. Specifically, it may depend on whether the above solution executed by the communication device 1100 includes a sending action and a receiving action.

Optionally, the communication device 1100 is used to perform the actions performed by the terminal device in any of the embodiments shown in Figures 4, 5, 8 to 10. For example, the communication device 1100 is used to perform the following scheme:

The processing module 1102 is configured to measure one or more reference signal resources;

The transceiver module 1101 is used to send measurement results and mode switching information of one or more reference signal resources, where the mode switching information is used to indicate that the communication device 1100 will switch from a common mode to a separate mode, or the mode switching information is used for the communication device 1100 to request to switch from a common mode to a separate mode; or the mode switching information is used to indicate that the communication device 1100 will switch from a separate mode to a common mode; or the mode switching information is used for the communication device 1100 to request to switch from a separate mode to a common mode; or the mode switching information is used to indicate whether to switch the TCI mode adopted by the communication device 1100, or the mode switching information is used to indicate the TCI mode adopted by the communication device 1100, and the TCI mode is either a common mode or a separate mode.

For another example, the communication device 1100 is used to execute the following solution:

The processing module 1102 is used to determine mode switching information, where the mode switching information is used to indicate that the communication device 1100 will switch from the common mode to the separate mode, or the mode switching information is used for the communication device 1100 to request to switch from the common mode to the separate mode; or the mode switching information is used to indicate that the communication device 1100 will switch from the separate mode to the common mode; or the mode switching information is used for the communication device 1100 Requesting to switch from the separate mode to the common mode; or, the mode switching information is used to indicate whether to switch the TCI mode adopted by the communication device 1100; or, the mode switching information is used to indicate the TCI mode adopted by the communication device 1100, and the TCI mode is the common mode or the separate mode;

The transceiver module 1101 is used to send mode switching information.

It should be understood that the specific process of each module executing the above corresponding process has been described in detail in the above method embodiment, and for the sake of brevity, it will not be repeated here.

The processing module 1102 in the above embodiment can be implemented by at least one processor or processor-related circuit. The transceiver module 1101 can be implemented by a transceiver or a transceiver-related circuit. The transceiver module 1101 can also be called a communication module or a communication interface. The storage module can be implemented by at least one memory.

Fig. 12 is a schematic diagram of a structure of a communication device according to an embodiment of the present application. Referring to Fig. 12, the communication device can be used to execute the process executed by the network device in any of the embodiments shown in Fig. 4, Fig. 5, Fig. 8 to Fig. 10. For details, please refer to the relevant introduction in the above method embodiments.

The communication device 1200 includes a transceiver module 1201. Optionally, the communication device 1200 also includes a processing module 1202.

The transceiver module 1201 can implement corresponding communication functions, and the processing module 1202 is used for data processing. The transceiver module 1201 can also be called a communication interface or a communication module.

Optionally, the communication device 1200 may further include a storage module, which may be used to store instructions and/or data. The processing module 1202 may read the instructions and/or data in the storage module so that the communication device implements the aforementioned method embodiment.

The communication device module 1200 can be used to perform the actions performed by the network device in the above method embodiment. The communication device 1200 can be a network device or a component that can be configured in a network device. The transceiver module 1201 is used to perform the reception-related operations on the network device side in the above method embodiment, and the processing module 1202 is used to perform the processing-related operations on the network device side in the above method embodiment.

Optionally, the transceiver module 1201 may include a sending module and a receiving module. The sending module is used to perform the sending operation in the above method embodiment. The receiving module is used to perform the receiving operation in the above method embodiment.

It should be noted that the communication device 1200 may include a sending module but not a receiving module. Alternatively, the communication device 1200 may include a receiving module but not a sending module. Specifically, it may depend on whether the above solution executed by the communication device 1200 includes a sending action and a receiving action.

Optionally, the communication device 1200 is used to perform the actions performed by the network device in any of the embodiments shown in Figures 4, 5, 8 to 10. For example, the communication device 1200 is used to perform the following scheme:

The transceiver module 1201 is used to receive measurement results and mode switching information of one or more reference signal resources from the terminal device, where the mode switching information is used to indicate that the terminal device will switch from a common mode to a separate mode, or the mode switching information is used by the terminal device to request switching from a common mode to a separate mode; or the mode switching information is used to indicate that the terminal device will switch from a separate mode to a common mode, or the mode switching information is used by the terminal device to request switching from a separate mode to a common mode, or the mode switching information is used to indicate whether to switch the TCI mode adopted by the terminal device, or the mode switching information is used to indicate the TCI mode adopted by the terminal device, and the TCI mode is either a common mode or a separate mode.

For another example, the communication device 1200 is used to execute the following solution:

The transceiver module 1201 is used to receive mode switching information from the terminal device, where the mode switching information is used to indicate that the terminal device will switch from a common mode to a separate mode, or the mode switching information is used for the terminal device to request to switch from a common mode to a separate mode; or the mode switching information is used to indicate that the terminal device will switch from a separate mode to a common mode, or the mode switching information is used for the terminal device to request to switch from a separate mode to a common mode, or the mode switching information is used to indicate whether to switch the TCI mode adopted by the terminal device, or the mode switching information is used to indicate the TCI mode adopted by the terminal device, and the TCI mode is either a common mode or a separate mode.

It should be understood that the specific process of each module executing the above corresponding process has been described in detail in the above method embodiment, and for the sake of brevity, it will not be repeated here.

The processing module 1202 in the above embodiment can be implemented by at least one processor or processor-related circuit. The transceiver module 1201 can be implemented by a transceiver or a transceiver-related circuit. The transceiver module 1201 can also be called a communication module or a communication interface. The storage module can be implemented by at least one memory.

The embodiment of the present application also provides a communication device 1300. The communication device 1300 includes a processor 1310, the processor 1310 is coupled to a memory 1320, the memory 1320 is used to store computer programs or instructions and/or data, and the processor 1310 is used to execute the computer programs or instructions and/or data stored in the memory 1320, so that the method in the above method embodiment is executed.

Optionally, the communication device 1300 includes one or more processors 1310.

Optionally, as shown in FIG. 13 , the communication device 1300 may further include a memory 1320 .

Optionally, the communication device 1300 may include one or more memories 1320 .

Optionally, the memory 1320 may be integrated with the processor 1310 or provided separately.

Optionally, as shown in Fig. 13, the communication device 1300 may further include a transceiver 1330, and the transceiver 1330 is used for receiving and/or sending signals. For example, the processor 1310 is used to control the transceiver 1330 to receive and/or send signals.

As a solution, the communication device 1300 is used to implement the operations performed by the terminal device in the above method embodiment.

For example, the processor 1310 is used to implement the processing-related operations performed by the terminal device in the above method embodiment, and the transceiver 1330 is used to implement the sending and receiving-related operations performed by the terminal device in the above method embodiment.

As another solution, the communication device 1300 is used to implement the operations performed by the network device in the above method embodiment.

For example, the processor 1310 is used to implement the processing-related operations performed by the network device in the above method embodiment, and the transceiver 1330 is used to implement the sending and receiving-related operations performed by the network device in the above method embodiment.

The present application also provides a communication device 1400, which may be a terminal device, a processor of the terminal device, or a chip. The communication device 1400 may be used to execute the operations executed by the terminal device in the above method embodiment.

When the communication device 1400 is a terminal device, a simplified schematic diagram of the structure of the terminal device is shown in Fig. 14. As shown in Fig. 14, the terminal device includes a processor, a memory, and a transceiver.

The memory can store computer program codes, and the transceiver includes a transmitter 1431, a receiver 1432, a radio frequency circuit (not shown in the figure), an antenna 1433, and an input and output device (not shown in the figure).

The processor is mainly used to process communication protocols and communication data, as well as to control terminal devices, execute software programs, process software program data, etc. The memory is mainly used to store software programs and data. The radio frequency circuit is mainly used for converting baseband signals and radio frequency signals and processing radio frequency signals. The antenna is mainly used to send and receive radio frequency signals in the form of electromagnetic waves. Input and output devices. For example, touch screens, display screens, keyboards, etc. are mainly used to receive data input by users and output data to users. It should be noted that some types of terminal devices may not have input and output devices.

When data needs to be sent, the processor performs baseband processing on the data to be sent, and then outputs the baseband signal to the RF circuit. The RF circuit performs RF processing on the baseband signal and then sends the RF signal outward in the form of electromagnetic waves through the antenna. When data is sent to the terminal device, the RF circuit receives the RF signal through the antenna, converts the RF signal into a baseband signal, and outputs the baseband signal to the processor. The processor converts the baseband signal into data and processes the data. For ease of explanation, only one memory, processor, and transceiver are shown in FIG14. In an actual terminal device product, there may be one or more processors and one or more memories. The memory may also be referred to as a storage medium or a storage device, etc. The memory may be set independently of the processor or integrated with the processor, and the embodiments of the present application do not limit this.

In the embodiment of the present application, the antenna and the radio frequency circuit with transceiver functions can be regarded as the transceiver module of the terminal device, and the processor with processing function can be regarded as the processing module of the terminal device.

As shown in FIG14 , the terminal device includes a processor 1410, a memory 1420, and a transceiver 1430. The processor 1410 may also be referred to as a processing unit, a processing board, a processing module, a processing device, etc. The transceiver 1430 may also be referred to as a transceiver unit, a transceiver, a transceiver device, etc.

Optionally, the device for implementing the receiving function in the transceiver 1430 may be regarded as a receiving module, and the device for implementing the transmitting function in the transceiver 1430 may be regarded as a transmitting module, that is, the transceiver 1430 includes a receiver and a transmitter. A transceiver may sometimes be referred to as a transceiver, a transceiver module, or a transceiver circuit, etc. A receiver may sometimes be referred to as a receiver, a receiving module, or a receiving circuit, etc. A transmitter may sometimes be referred to as a transmitter, a transmitting module, or a transmitting circuit, etc.

The processor 1410 is used to perform the processing actions on the terminal device side in the embodiments shown in Figures 4, 5, 8 to 10, and the transceiver 1430 is used to perform the transceiver actions on the terminal device side in the embodiments shown in Figures 4, 5, 8 to 10. For example, the processor 1410 is used to perform step 401 in the embodiment shown in Figure 4. The transceiver 1430 is used to perform step 402 in the embodiment shown in Figure 4. Optionally, the transceiver 1430 is also used to perform steps 401a to 401c in the embodiment shown in Figure 4.

It should be understood that FIG. 14 is merely an example and not a limitation, and the terminal device including the transceiver module and the processing module may not rely on the structure shown in FIG. 11 or FIG. 14 .

When the communication device 1400 is a chip, the chip includes a processor, a memory and a transceiver. The transceiver may be an input/output circuit or a communication interface; the processor may be a processing module or a microprocessor or an integrated circuit integrated on the chip. The sending operation of the terminal device in the example can be understood as the output of the chip, and the receiving operation of the terminal device in the above method embodiment can be understood as the input of the chip.

The present application also provides a communication device 1500, which can be a network device or a chip. The communication device 1500 can be used to perform the operations performed by the network device in any of the embodiments shown in FIG. 4, FIG. 5, and FIG. 8 to FIG. 10.

When the communication device 1500 is a network device, for example, a base station. Figure 15 shows a simplified schematic diagram of the base station structure. The base station includes parts 1510, 1520 and 1530. Part 1510 is mainly used for baseband processing, controlling the base station, etc.; Part 1510 is usually the control center of the base station, which can be usually called a processor, and is used to control the base station to perform the processing operations on the network device side in the above method embodiment. Part 1520 is mainly used to store computer program codes and data. Part 1530 is mainly used for receiving and transmitting radio frequency signals and converting radio frequency signals into baseband signals; Part 1530 can usually be called a transceiver module, a transceiver, a transceiver circuit, or a transceiver, etc. The transceiver module of part 1530 can also be called a transceiver or a transceiver, etc., which includes an antenna 1533 and a radio frequency circuit (not shown in the figure), wherein the radio frequency circuit is mainly used for radio frequency processing. Optionally, the device for implementing the receiving function in part 1530 may be regarded as a receiver, and the device for implementing the transmitting function may be regarded as a transmitter, that is, part 1530 includes a receiver 1532 and a transmitter 1531. The receiver may also be referred to as a receiving module, a receiver, or a receiving circuit, etc., and the transmitter may be referred to as a transmitting module, a transmitter, or a transmitting circuit, etc.

Part 1510 and part 1520 may include one or more single boards, each of which may include one or more processors and one or more memories. The processor is used to read and execute the program in the memory to realize the baseband processing function and the control of the base station. If there are multiple single boards, each single board can be interconnected to enhance the processing capability. As an optional implementation, multiple single boards may share one or more processors, or multiple single boards may share one or more memories, or multiple single boards may share one or more processors at the same time.

For example, the transceiver module of part 1530 is used to execute the transceiver-related process executed by the network device in the embodiment shown in Figure 4. The processor of part 1510 is used to execute the processing-related process executed by the network device in the embodiment shown in Figure 4.

It should be understood that FIG. 15 is merely an example and not a limitation, and the network device including the processor, memory, and transceiver may not rely on the structure shown in FIG. 12 or FIG. 15 .

When the communication device 1500 is a chip, the chip includes a transceiver, a memory and a processor. The transceiver may be an input/output circuit or a communication interface; the processor may be a processor, a microprocessor or an integrated circuit integrated on the chip. The sending operation of the network device in the above method embodiment may be understood as the output of the chip, and the receiving operation of the network device in the above method embodiment may be understood as the input of the chip.

An embodiment of the present application also provides a computer-readable storage medium on which computer instructions for implementing the method executed by a terminal device or a network device in the above method embodiment are stored.

For example, when the computer program is executed by a computer, the computer can implement the method performed by the terminal device or the network device in the above method embodiment.

An embodiment of the present application also provides a computer program product comprising instructions, which, when executed by a computer, enables the computer to implement the method executed by a terminal device or a network device in the above method embodiment.

An embodiment of the present application also provides a communication system, which includes the terminal device in the above embodiment and the network device in the above embodiment.

An embodiment of the present application also provides a chip device, including a processor, for calling a computer program or computer instruction stored in the memory so that the processor executes the method provided in any one of the embodiments shown in Figures 4, 5, 8 to 10 above.

In one possible implementation, the input of the chip device corresponds to the receiving operation in any one of the embodiments shown in Figures 4, 5, 8 to 10 above, and the output of the chip device corresponds to the sending operation in any one of the embodiments shown in Figures 4, 5, 8 to 10 above.

Optionally, the processor is coupled to the memory via an interface.

Optionally, the chip device further comprises a memory, in which computer programs or computer instructions are stored.

The processor mentioned in any of the above places may be a general-purpose central processing unit, a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits for controlling the execution of the program of the method provided in any of the embodiments shown in Figures 4, 5, 8 to 10. The memory mentioned in any of the above places may be a read-only memory (ROM) or other types of static storage devices that can store static information and instructions, a random access memory (RAM), etc.

Those skilled in the art can clearly understand that for the convenience and brevity of description, the relevant contents in any of the above-mentioned communication devices are The explanation of the content and beneficial effects can be referred to the corresponding method embodiments provided above, which will not be repeated here.

In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the part that essentially contributes to the technical solution of the present application or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as USB flash drives, mobile hard drives, ROM, RAM, magnetic disks, or optical disks.

As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, a person of ordinary skill in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features therein can be replaced by equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims (43)

A method for sending a measurement result, characterized in that the method comprises: measuring one or more reference signal resources; Send measurement results and mode switching information of the one or more reference signal resources, the mode switching information is used to indicate that the terminal device will switch from a common mode to a separate mode, or the mode switching information is used by the terminal device to request switching from a common mode to a separate mode, or the mode switching information is used to indicate that the terminal device will switch from a separate mode to a common mode, or the mode switching information is used by the terminal device to request switching from a separate mode to a common mode, or the mode switching information is used to indicate whether to switch the transmission configuration indication TCI mode adopted by the terminal device, or the mode switching information is used to indicate the TCI mode adopted by the terminal device, and the TCI mode is a common mode or a separate mode. A method for receiving a measurement result, characterized in that the method comprises: Receive measurement results and mode switching information of one or more reference signal resources from a terminal device, wherein the mode switching information is used to indicate that the terminal device will switch from a common mode to a separate mode, or the mode switching information is used by the terminal device to request switching from a common mode to a separate mode, or the mode switching information is used to indicate that the terminal device will switch from a separate mode to a common mode, or the mode switching information is used by the terminal device to request switching from a separate mode to a common mode, or the mode switching information is used to indicate whether to switch a transmission configuration indication TCI mode adopted by the terminal device, or the mode switching information is used to indicate a TCI mode adopted by the terminal device, and the TCI mode is a common mode or a separate mode. The method according to claim 1 or 2, characterized in that the mode switching information is indicated by a first field; When the value of the first field is the first value, the mode switching information indicates that the terminal device will switch from the common mode to the separate mode, or the mode switching information is used by the terminal device to request switching from the common mode to the separate mode, or the mode switching information indicates switching the TCI mode adopted by the terminal device, or the mode switching information indicates that the terminal device adopts the separate mode; or, When the value of the first field is the second value, the mode switching information indicates that the terminal device will switch from the separate mode to the common mode, or, the mode switching information is used by the terminal device to request switching from the separate mode to the common mode, or, the mode switching information indicates not to switch the TCI mode adopted by the terminal device, or, the mode switching information indicates that the terminal device adopts the common mode. The method according to claims 1 to 3 is characterized in that the mode switching information is used to indicate that the terminal device is to switch from the common mode to the separate mode, or the mode switching information is used by the terminal device to request to switch from the common mode to the separate mode, or the mode switching information is used to indicate that the terminal device adopts the separate mode; The mode switching information also includes a second field, and the second field is used to indicate the identifier of one or more uplink transmission configuration numbers UL TCI states, or the second field is used to indicate the identifier of one or more reference signals. The method according to claim 4 is characterized in that each UL TCI state identifier in the one or more UL TCI state identifiers is associated with a reference signal resource in the one or more reference signal resources; or, Each reference signal identifier of the one or more reference signal identifiers is associated with a reference signal resource of the one or more reference signal resources. The method according to claim 1 is characterized in that the mode switching information is indicated by one or more third fields, and the one or more third fields correspond to part or all of the one or more reference signal resources, and each third field is used to indicate whether the reference signal on the reference signal resource corresponding to the third field can be used as a reference signal for uplink transmission. The method according to any one of claims 1, 3 to 6, characterized in that the method further comprises: Receive a first media access control element MAC CE or a first downlink control information DCI from a network device, wherein the first MAC CE or the first DCI is used to instruct the terminal device to switch from a common mode to a separate mode, or, the first MAC CE or the first DCI is used to instruct the terminal device to switch from a separate mode to a common mode, or, the first MAC CE or the first DCI is used to instruct the terminal device to adopt the separate mode, or, the first MAC CE or the first DCI is used to instruct the terminal device to adopt the common mode. The method according to any one of claims 2 to 6, characterized in that the method further comprises: Sending a first MAC CE or a first DCI to the terminal device, wherein the first MAC CE or the first DCI is used to indicate the terminal The device switches from a common mode to a separate mode, or the first MAC CE or the first DCI is used to instruct the terminal device to switch from a separate mode to a common mode, or the first MAC CE or the first DCI is used to instruct the terminal device to adopt a separate mode, or the first MAC CE or the first DCI is used to instruct the terminal device to adopt a common mode. The method according to claim 4, characterized in that when the second field indicates an identifier of a UL TCI state or an identifier of a reference signal; the method further comprises: Uplink transmission is performed according to the UL TCI state identifier or the reference signal identifier. The method according to claim 9, characterized in that the uplink transmission according to the identifier of the UL TCI state or the identifier of the reference signal comprises: When the first condition is met, uplink transmission is performed according to the identifier of the UL TCI state or the identifier of the reference signal; The first condition includes one or more of the following: A first time period has passed after the terminal device sends the mode switching information; A second time period has passed after the terminal device receives a confirmation message ACK from the network device, the ACK being used to indicate that the network device has successfully received the measurement results of the one or more reference signal resources and the mode switching information; The terminal device receives first indication information from the network device, where the first indication information is used to instruct the terminal device to use the identifier of the UL TCI state or the identifier of the reference signal for uplink transmission; The terminal device receives second indication information from the network device, where the second indication information is used to instruct the terminal device to switch to a separation mode; or, The terminal device receives third indication information from the network device, where the third indication information is used to indicate a TCI state, and the reference signal identifier in the TCI state is a reference signal identifier on one of the one or more reference signal resources. The method according to claim 4, characterized in that the second field indicates identification of multiple UL TCI states or identification of multiple reference signals; the method further comprises: receiving fourth indication information from the network device, the fourth indication information being used to indicate the use of an identifier of a first UL TCI state or an identifier of a first reference signal, the first UL TCI state belonging to the multiple UL TCI states, and the first reference signal belonging to the multiple reference signals; Uplink transmission is performed according to the identifier of the first UL TCI state or the identifier of the first reference signal. The method according to claim 11, characterized in that the uplink transmission comprises: Perform uplink transmission according to the uplink power control parameters and path loss reference signal associated with the first UL TCI state; or, Perform uplink transmission by using an uplink power control parameter and a path loss reference signal associated with a TCI state including an identifier of the first reference signal; or, The uplink power control parameters and path loss reference signal configured in the partial bandwidth BWP uplink indication configured by the network device for the terminal device are used for uplink transmission. The method according to claim 4, characterized in that the second field indicates identification of multiple UL TCI states or identification of multiple reference signals; the method further comprises: Send fourth indication information to the terminal device, wherein the fourth indication information is used to indicate the use of an identifier of a first UL TCI state or an identifier of a first reference signal, wherein the first UL TCI state belongs to the multiple UL TCI states, and the first reference signal belongs to the multiple reference signals. The method according to claim 4, characterized in that the second field indicates identification of multiple UL TCI states or identification of multiple reference signals; the method further comprises: According to a preset rule, uplink transmission is performed using one of the multiple UL TCI state identifiers or one of the multiple reference signal identifiers. The method according to claim 9, 10 or 14, characterized in that the uplink transmission comprises: Perform uplink transmission via the uplink power control parameters and path loss reference signal associated with the UL TCI state; or, Perform uplink transmission by using an uplink power control parameter and a path loss reference signal associated with a TCI state including an identifier of the reference signal; or, The uplink power control parameters and path loss reference configured in the BWP uplink indication configured by the network device for the terminal device are The signal is transmitted uplink. The method according to claim 5, characterized in that the reference signal resource currently used for transmission by the terminal device is one of the one or more reference signal resources; the method further comprises: Uplink transmission is performed according to the identifier of the UL TCI state associated with the reference signal resource currently used for transmission by the terminal device or the identifier of the associated reference signal. The method according to claim 16, characterized in that the uplink transmission is performed according to the identifier of the UL TCI state associated with the reference signal resource currently used for transmission by the terminal device or the identifier of the associated reference signal, comprising: When the second condition is met, uplink transmission is performed according to the identifier of the UL TCI state associated with the reference signal resource currently used for transmission by the terminal device or the identifier of the associated reference signal; The second condition includes at least one of the following: A first time period has passed after the terminal device sends the mode switching information; The terminal device receives fifth indication information from the network device, wherein the fifth indication information is used to instruct the terminal device to use the identifier of the UL TCI state associated with the reference signal resource currently used by the terminal device or the identifier of the associated reference signal for uplink transmission; The terminal device receives second indication information from the network device, where the second indication information is used to instruct the terminal device to switch to a separation mode; or, A second time period elapses after the terminal device receives a confirmation message ACK from the network device, the ACK being used to indicate that the network device has successfully received the measurement results of the one or more reference signal resources and the mode switching information. The method according to claim 5, characterized in that the method further comprises: receiving third indication information from the network device, where the third indication information is used to indicate a TCI state, and the identifier of the reference signal in the TCI state is an identifier of a reference signal corresponding to one of the one or more reference signal resources; Uplink transmission is performed according to the identifier of the UL TCI state associated with the reference signal resource or the identifier of the associated reference signal. The method according to claim 5, characterized in that the method further comprises: Sending third indication information to the terminal device, wherein the third indication information is used to indicate a TCI state, an identifier of a reference signal in the TCI state is an identifier of a reference signal corresponding to one of the one or more reference signal resources, and an identifier of a UL TCI state associated with the reference signal resource or an identifier of an associated reference signal is used for uplink transmission by the terminal device. The method according to any one of claims 16 to 18, characterized in that the uplink transmission comprises: Perform uplink transmission via the uplink power control parameters and path loss reference signal associated with the UL TCI state; or, Perform uplink transmission by using an uplink power control parameter and a path loss reference signal associated with a TCI state including an identifier of the reference signal; or, The uplink power control parameters and path loss reference signal configured in the BWP uplink indication configured by the network device for the terminal device are used for uplink transmission. A first communication device, characterized in that the first communication device comprises a transceiver module and a processing module; The processing module is used to measure one or more reference signal resources; The transceiver module is used to send the measurement results and mode switching information of the one or more reference signal resources, the mode switching information is used to indicate that the first communication device will switch from a common mode to a separate mode, or the mode switching information is used by the first communication device to request to switch from a common mode to a separate mode, or the mode switching information is used to indicate that the first communication device will switch from a separate mode to a common mode, or the mode switching information is used by the first communication device to request to switch from a separate mode to a common mode, or the mode switching information is used to indicate whether to switch the transmission configuration indication TCI mode adopted by the first communication device, or the mode switching information is used to indicate the TCI mode adopted by the first communication device, and the TCI mode is a common mode or a separate mode. A second communication device, characterized in that the second communication device comprises a transceiver module; The transceiver module is configured to receive measurement results and mode switching information of one or more reference signal resources from a first communication device, wherein the mode switching information is used to indicate that the first communication device will switch from a common mode to a separate mode, or the mode switching information is used by the first communication device to request switching from a common mode to a separate mode, or the mode switching information is used to indicate that the first communication device will switch from a separate mode to a common mode, or the mode switching information is used by the first communication device to request switching from a separate mode to a common mode, or the mode switching information is used to indicate whether to switch a transmission configuration indication TCI adopted by the first communication device Mode, or the mode switching information is used to indicate the TCI mode adopted by the first communication device, and the TCI mode is a common mode or a separate mode. The first communication device according to claim 21 or the second communication device according to claim 22, characterized in that the mode switching information is indicated by a first field; When the value of the first field is a first value, the mode switching information indicates that the first communication device will switch from a common mode to a separate mode, or the mode switching information is used by the first communication device to request switching from a common mode to a separate mode, or the mode switching information indicates switching the TCI mode adopted by the first communication device, or the mode switching information indicates that the first communication device adopts a separate mode; or, When the value of the first field is the second value, the mode switching information indicates that the first communication device will switch from a separate mode to a common mode, or, the mode switching information is used by the first communication device to request switching from a separate mode to a common mode, or, the mode switching information indicates not to switch the TCI mode adopted by the first communication device, or, the mode switching information indicates that the first communication device adopts a common mode. According to the first communication device according to claim 21 or 23 or the second communication device according to claim 22 or 23, it is characterized in that the mode switching information is used to indicate that the first communication device will switch from a common mode to a separate mode, or the mode switching information is used by the first communication device to request switching from a common mode to a separate mode, or the mode switching information is used to indicate that the first communication device adopts a separate mode; the mode switching information also includes a second field, the second field is used to indicate the identification of one or more uplink transmission configuration number UL TCI states, or the second field is used to indicate the identification of one or more reference signals. The first communication device or the second communication device according to claim 24 is characterized in that each UL TCI state identifier in the one or more UL TCI state identifiers is associated with a reference signal resource among the one or more reference signal resources; or, Each reference signal identifier of the one or more reference signal identifiers is associated with a reference signal resource of the one or more reference signal resources. The first communication device according to claim 21 is characterized in that the mode switching information is indicated by one or more third fields, and the one or more third fields correspond to part or all of the one or more reference signal resources, and each third field is used to indicate whether the reference signal on the reference signal resource corresponding to the third field can be used as a reference signal for uplink transmission. The first communication device according to any one of claims 21, 23 to 26, characterized in that the transceiver module is further used for: A first media access control element MAC CE or a first downlink control information DCI is received from a second communication device, wherein the first MAC CE or the first DCI is used to instruct the first communication device to switch from a common mode to a separate mode, or the first MAC CE or the first DCI is used to instruct the first communication device to switch from a separate mode to a common mode, or the first MAC CE or the first DCI is used to instruct the first communication device to adopt the separate mode, or the first MAC CE or the first DCI is used to instruct the first communication device to adopt the common mode. The second communication device according to any one of claims 22 to 26, characterized in that the transceiver module is further used for: A first MAC CE or a first DCI is sent to the first communication device, wherein the first MAC CE or the first DCI is used to instruct the first communication device to switch from a common mode to a separate mode, or the first MAC CE or the first DCI is used to instruct the first communication device to switch from a separate mode to a common mode, or the first MAC CE or the first DCI is used to instruct the first communication device to adopt the separate mode, or the first MAC CE or the first DCI is used to instruct the first communication device to adopt the common mode. The first communication device according to claim 24, characterized in that when the second field indicates an identifier of a UL TCI state or an identifier of a reference signal; the transceiver module is further used to: Uplink transmission is performed according to the UL TCI state identifier or the reference signal identifier. The first communication device according to claim 29, characterized in that the transceiver module is specifically used for: When the first condition is met, uplink transmission is performed according to the identifier of the UL TCI state or the identifier of the reference signal; The first condition includes one or more of the following: a first time period after the first communication device sends the mode switching information; A second time period has passed after the first communication device receives a confirmation message ACK from the second communication device, the ACK being used to indicate that the second communication device has successfully received the measurement results of the one or more reference signal resources and the mode switching information; The first communication device receives first indication information from the second communication device, where the first indication information is used to instruct the first communication device to use the identifier of the UL TCI state or the identifier of the reference signal for uplink transmission; The first communication device receives second indication information from the second communication device, where the second indication information is used to instruct the first communication device to switch to a separate mode; or, The first communication device receives third indication information from the second communication device, where the third indication information is used to indicate a TCI state, and the reference signal identifier in the TCI state is a reference signal identifier on one of the one or more reference signal resources. The first communication device according to claim 24, characterized in that the second field indicates identification of multiple UL TCI states or identification of multiple reference signals; and the transceiver module is further used for: receiving fourth indication information from the second communication device, the fourth indication information being used to indicate the use of an identifier of a first UL TCI state or an identifier of a first reference signal, the first UL TCI state belonging to the multiple UL TCI states, and the first reference signal belonging to the multiple reference signals; Uplink transmission is performed according to the identifier of the first UL TCI state or the identifier of the first reference signal. The first communication device according to claim 31, characterized in that the uplink transmission comprises: Perform uplink transmission according to the uplink power control parameters and path loss reference signal associated with the first UL TCI state; or, Perform uplink transmission by using an uplink power control parameter and a path loss reference signal associated with a TCI state including an identifier of the first reference signal; or, The uplink power control parameter and the path loss reference signal configured in the partial bandwidth BWP uplink indication configured by the second communication device for the first communication device are used for uplink transmission. The first communication device according to claim 24, characterized in that the second field indicates identification of multiple UL TCI states or identification of multiple reference signals; and the transceiver module is further used for: Send fourth indication information to the first communication device, wherein the fourth indication information is used to indicate the use of an identifier of a first UL TCI state or an identifier of a first reference signal, wherein the first UL TCI state belongs to the multiple UL TCI states, and the first reference signal belongs to the multiple reference signals. The first communication device according to claim 24, characterized in that the second field indicates identification of multiple UL TCI states or identification of multiple reference signals; and the transceiver module is further used for: According to a preset rule, uplink transmission is performed using one of the multiple UL TCI state identifiers or one of the multiple reference signal identifiers. The first communication device according to claim 29, 30, or 34, characterized in that the uplink transmission comprises: Perform uplink transmission via the uplink power control parameters and path loss reference signal associated with the UL TCI state; or, Perform uplink transmission by using an uplink power control parameter and a path loss reference signal associated with a TCI state including an identifier of the reference signal; or, The uplink power control parameter and the path loss reference signal configured in the BWP uplink indication configured by the second communication device for the first communication device are used for uplink transmission. The first communication device according to claim 25, characterized in that the reference signal resource currently used by the first communication device for transmission is one of the one or more reference signal resources; and the transceiver module is further used to: Uplink transmission is performed based on the identifier of the UL TCI state associated with the reference signal resource currently used for transmission by the first communication device or the identifier of the associated reference signal. The first communication device according to claim 36, characterized in that the transceiver module is specifically used for: When the second condition is met, uplink transmission is performed according to the identifier of the UL TCI state associated with the reference signal resource currently used for transmission by the first communication device or the identifier of the associated reference signal; The second condition includes at least one of the following: a first time period after the first communication device sends the mode switching information; The first communication device receives fifth indication information from the second communication device, where the fifth indication information is used to instruct the first communication device to use an identifier of a UL TCI state associated with a reference signal resource currently used by the first communication device or an identifier of an associated reference signal for uplink transmission; The first communication device receives second indication information from the second communication device, where the second indication information is used to instruct the first communication device to switch to a separate mode; or, A second time period elapses after the first communication apparatus receives a confirmation message ACK from the second communication apparatus, the ACK being used to indicate that the second communication apparatus has successfully received the measurement results of the one or more reference signal resources and the mode switching information. The first communication device according to claim 25, characterized in that the transceiver module is further used for: receiving third indication information from the second communication device, where the third indication information is used to indicate a TCI state, where the identifier of the reference signal in the TCI state is an identifier of a reference signal corresponding to one of the one or more reference signal resources; Uplink transmission is performed according to the identifier of the UL TCI state associated with the reference signal resource or the identifier of the associated reference signal. The first communication device according to claim 25, characterized in that the transceiver module is further used for: Send third indication information to the first communication device, wherein the third indication information is used to indicate a TCI state, an identifier of a reference signal in the TCI state is an identifier of a reference signal corresponding to one of the one or more reference signal resources, and an identifier of a UL TCI state associated with the reference signal resource or an identifier of an associated reference signal is used for uplink transmission by the first communication device. The first communication device according to any one of claims 36 to 38, characterized in that the uplink transmission comprises: Perform uplink transmission via the uplink power control parameters and path loss reference signal associated with the UL TCI state; or, Perform uplink transmission by using an uplink power control parameter and a path loss reference signal associated with a TCI state including an identifier of the reference signal; or, The uplink power control parameter and the path loss reference signal configured in the BWP uplink indication configured by the second communication device for the first communication device are used for uplink transmission. A communication device, characterized in that the communication device includes a processor; the processor is used to execute a computer program or computer instructions in a memory to implement the method as described in any one of claims 1, 3 to 7, 9 to 12, 14 to 18, and 20, or to implement the method as described in any one of claims 2 to 6, 8, 13, and 19. The communication device according to claim 22 is characterized in that the communication device also includes the memory for storing the computer program or computer instructions. A computer-readable storage medium, characterized in that a computer program is stored thereon, and when the computer program is executed by a communication device, the communication device executes the method as described in any one of claims 1 to 20.