WO2025232678A1 - Communication method and communication apparatus - Google Patents

Abstract

The present application discloses a communication method and a communication apparatus. The communication method comprises: receiving DCI, information that is carried by one or more indication fields in the DCI and/or a radio network temporary identifier (RNTI) that scrambles the DCI indicating that the DCI is used for scheduling transmission of a first report, and the first report being a CSI report during a beam management process or a cell handover process triggered by a terminal device; and sending the first report on the basis of the DCI. In this way, the function of the DCI can be conveniently determined to be used for scheduling the CSI report during the beam management process or the cell handover process triggered by the terminal device.

Description

Communication methods and communication devices

This application claims priority to Chinese Patent Application No. 202410579636.X, filed on May 10, 2024, entitled "Communication Method and Communication Apparatus", the entire contents of which are incorporated herein by reference.

Technical Field

This application relates to the field of communication technology, and in particular to a communication method and communication device.

Background Technology

The communication system introduces beam management or cell handover procedures triggered by terminal devices. These procedures involve the terminal device measuring reference signals on reference signal resources to determine if the measurement results satisfy a measurement event. This measurement event includes conditions for determining the signal quality of the beam corresponding to the reference signal resource. When the measurement results satisfy the measurement event, the terminal device proactively sends a report to the network device, causing the network device to perform beam management or cell handover. The report sent by the terminal device to the network device can be understood as a Channel State Information (CSI) report during the beam management or cell handover process triggered by the terminal device. Before the terminal device sends the report, the network device needs to schedule the required uplink channel resources for report transmission via Downlink Control Information (DCI). According to existing DCI protocols, the terminal device cannot determine which DCI is used to schedule the report during the beam management or cell handover process triggered by the terminal device.

Summary of the Invention

This application provides a communication method and a communication device, which can facilitate the determination of whether the function of DCI is to schedule beam management processes triggered by terminal equipment or reports during cell handover processes.

In a first aspect, embodiments of this application provide a communication method, the method comprising:

Receive DCI, wherein information carried by one or more indication fields in the DCI and/or Radio Network Temporary Identifier (RNTI) scrambled on the DCI indicates that the DCI is used to schedule the transmission of a first report, wherein the first report is a CSI report triggered by a terminal device during a beam management process or a cell handover process;

The first report is sent according to the DCI.

By implementing the method of the first aspect, the function of the DCI can be determined by the information carried by one or more indicator fields in the DCI and/or the RNTI scrambled on the DCI, thereby facilitating the terminal device to send the first report according to the DCI.

In one possible implementation, the one or more indication fields include at least one of the following: Hybrid Automatic Repeat Request (HARQ) process number field, Redundancy Version (RV) field, Modulation and Coding Strategy (MCS) field, New Data Indicator (NDI) field, CSI Request field, Frequency Domain Resource Allocation (FDRA) field, and Uplink Shared Channel Indicator field.

Implementing this approach provides various possibilities for the indication field, making full use of existing indication fields to indicate that the function of DCI is to schedule the first report transmission without adding extra bits for indication, thus saving overhead.

In one possible implementation, the information carried by the one or more indication fields includes: bit values in the one or more indication fields, the bit values in the one or more indication fields indicating the uplink channel resources required by the DCI for scheduling the first report transmission.

This method uses the bit values of one or more indicator fields to indicate the function of DCI, facilitating efficient detection by terminal devices.

In one possible implementation, the one or more indication fields include a CSI request field, wherein the bit values in the CSI request field are the same as the bit values carried in the request message, which is used by the terminal device to request uplink channel resources required for the first report transmission from the network device.

By implementing this method, the bit values in the CSI request field are set to be the same as the bit values carried in the request message, so that the terminal device can determine that the function of DCI is to schedule the first report transmission.

In one possible implementation, the one or more indication fields include a CSI request field, and the information carried by the one or more indication fields includes a trigger state carried by the CSI request field, the trigger state being used to indicate one or more report configurations, each of the one or more report configurations including configuration information of a first report.

In this approach, a trigger status carried by the CSI request domain indicates that the function of the DCI is to schedule the first report transmission. This can indicate one or more report configurations or the function of the DCI.

In one possible implementation, the one or more indication fields include a CSI request field, and the information carried by the one or more indication fields includes a plurality of trigger states carried by the CSI request field, each of the plurality of trigger states being used to indicate a report configuration, the report configuration including configuration information of a first report.

In this approach, multiple trigger states carried by the CSI request field indicate that the DCI function is to schedule the uplink channel resources required for the first report transmission, and can also indicate one or more report configurations.

In one possible implementation, sending the first report includes:

The first report is sent in the first cell;

Wherein, the first cell is the cell in which the first report is configured; or, the first cell is the cell indicated by the configuration information of the first report for sending the first report; or, the first cell is a cell for transmitting reference signal resource configuration information, the reference signal resource configuration information being the reference signal resource configuration information indicated by the configuration information of the first report; or, the first cell is the cell in which reference signal resources are located, the reference signal resources being indicated by the configuration information of the first report and used to measure the signal quality of the current beam and/or the signal quality of candidate beams in the first cell, the measurement results of the reference signal resources being used to determine whether the first cell satisfies the measurement event; or, the first cell is the cell in which the uplink channel resources scheduled by the DCI are located; or, the first cell is a cell in which the measurement results satisfy the measurement event, the measurement results including the signal quality measurement results of the current beam and/or the signal quality measurement results of candidate beams, the measurement event including a first condition and/or a second condition, the first condition being used to determine the signal quality of the current beam, and the second condition being used to determine the signal quality of candidate beams.

Implementing this method provides rules for determining the first cell from which the first report is sent, making it easier for network devices to receive the first report in the corresponding cell and improving reception efficiency.

In one possible implementation, the first cell is a cell used for transmitting reference signal resource configuration information, wherein the reference signal resource configuration information is the reference signal resource configuration information indicated by the configuration information reported by the first cell, including:

If the configuration information in the first report indicates the reference signal resource configuration information transmitted in each of the multiple cells, the first cell is the cell with the largest cell index value or the cell with the smallest cell index value among the multiple cells.

Implementing this method provides a selection rule for choosing the cell to send the first report when the first report configuration information indicates the reference signal resource configuration information of multiple cells, making it easier for the cell from which the network device receives the first report to be consistent with the cell from which the terminal device sends the first report.

In one possible implementation, the first cell is the cell containing the reference signal resource, which is indicated by the configuration information in the first report and is used to measure the signal quality of the current beam and/or the signal quality of the candidate beam in the first cell, including:

If the configuration information in the first report indicates a reference signal resource for measuring the signal quality of the current beam and/or the signal quality of the candidate beam in each of the multiple cells, the first cell is the cell with the largest cell index value or the cell with the smallest cell index value among the multiple cells.

Implementing this method ensures that the cell from which the network device receives the first report is consistent with the cell from which the terminal device sends the first report, thereby improving the efficiency of the network device in receiving the first report.

In one possible implementation, the first cell is the cell where the uplink channel resources scheduled by the DCI are located, including:

If the DCI schedules uplink channel resources for each of the multiple cells, the first cell is either the cell with the largest cell index value or the cell with the smallest cell index value among the multiple cells.

Implementing this method ensures that the cell from which the network device receives the first report is consistent with the cell from which the terminal device sends the first report, thereby improving the efficiency of the network device in receiving the first report.

In one possible implementation, the first cell is a cell whose measurement result satisfies the measurement event, including:

If the cells that meet the measurement event include multiple cells, the first cell is either the cell with the largest cell index value or the cell with the smallest cell index value among the multiple cells.

Implementing this method ensures that the cell from which the network device receives the first report is consistent with the cell from which the terminal device sends the first report, thereby improving the efficiency of the network device in receiving the first report.

Secondly, embodiments of this application provide a communication method, the method comprising:

Send downlink control information (DCI), wherein information carried by one or more indication fields in the DCI and/or radio network temporary identifier (RNTI) scrambled on the DCI indicate that the DCI is used to schedule the transmission of a first report, wherein the first report is a CSI report triggered by a terminal device during a beam management process or a cell handover process;

Receive the first report.

In one possible implementation, the one or more indication fields include at least one of the following: Hybrid Automatic Repeat Request (HARQ) process number field, Redundancy Version (RV) field, Modulation and Coding Strategy (MCS) field, New Data Indicator (NDI) field, CSI Request field, Frequency Domain Resource Allocation (FDRA) field, and Uplink Shared Channel Indicator field.

In one possible implementation, the information carried by the one or more indication fields includes: bit values in the one or more indication fields, the bit values in the one or more indication fields indicating the uplink channel resources required by the DCI for scheduling the first report transmission.

In one possible implementation, the one or more indication fields include a CSI request field, wherein the bit values in the CSI request field are the same as the bit values carried in the request message, which is used by the terminal device to request uplink channel resources required for the first report transmission from the network device.

In one possible implementation, the one or more indication fields include a CSI request field, and the information carried by the one or more indication fields includes a trigger state carried by the CSI request field, the trigger state being used to indicate one or more report configurations, each of the one or more report configurations including configuration information of a first report.

In one possible implementation, the one or more indication fields include a CSI request field, and the information carried by the one or more indication fields includes a plurality of trigger states carried by the CSI request field, each of the plurality of trigger states being used to indicate a report configuration, the report configuration including configuration information of a first report.

In one possible implementation, receiving the first report includes:

The first report is received in the first cell;

Wherein, the first cell is the cell in which the first report is configured; or, the first cell is the cell indicated by the configuration information of the first report for sending the first report; or, the first cell is a cell for transmitting reference signal resource configuration information, the reference signal resource configuration information being the reference signal resource configuration information indicated by the configuration information of the first report; or, the first cell is the cell in which reference signal resources are located, the reference signal resources being indicated by the configuration information of the first report and used to measure the signal quality of the current beam and/or the signal quality of candidate beams in the first cell, the measurement results of the reference signal resources being used to determine whether the first cell satisfies the measurement event; or, the first cell is the cell in which the uplink channel resources scheduled by the DCI are located; or, the first cell is a cell in which the measurement results satisfy the measurement event, the measurement results including the signal quality measurement results of the current beam and/or the signal quality measurement results of candidate beams, the measurement event including a first condition and/or a second condition, the first condition being used to determine the signal quality of the current beam, and the second condition being used to determine the signal quality of candidate beams.

In one possible implementation, the first cell is a cell used for transmitting reference signal resource configuration information, wherein the reference signal resource configuration information is the reference signal resource configuration information indicated by the configuration information reported by the first cell, including:

If the configuration information in the first report indicates the reference signal resource configuration information transmitted in each of the multiple cells, the first cell is the cell with the largest cell index value or the cell with the smallest cell index value among the multiple cells.

In one possible implementation, the first cell is the cell containing the reference signal resource, which is indicated by the configuration information in the first report and is used to measure the signal quality of the current beam and/or the signal quality of the candidate beam in the first cell, including:

If the configuration information in the first report indicates a reference signal resource for measuring the signal quality of the current beam and/or the signal quality of the candidate beam in each of the multiple cells, the first cell is the cell with the largest cell index value or the cell with the smallest cell index value among the multiple cells.

In one possible implementation, the first cell is the cell where the uplink channel resources scheduled by the DCI are located, including:

If the DCI schedules uplink channel resources for each of the multiple cells, the first cell is either the cell with the largest cell index value or the cell with the smallest cell index value among the multiple cells.

In one possible implementation, the first cell is a cell whose measurement result satisfies the measurement event, including:

If the cells that meet the measurement event include multiple cells, the first cell is either the cell with the largest cell index value or the cell with the smallest cell index value among the multiple cells.

Thirdly, embodiments of this application provide a communication device, which includes:

The receiving unit is configured to receive downlink control information (DCI), wherein information carried in one or more indication fields in the DCI and/or radio network temporary identifier (RNTI) scrambled on the DCI indicate that the DCI is used to schedule the transmission of a first report, wherein the first report is a channel state information (CSI) report during a beam management process or cell handover process triggered by the communication device.

A sending unit is configured to send the first report according to the DCI.

Fourthly, embodiments of this application provide a communication device, which is a first communication device, comprising:

A transmitting unit is used to transmit downlink control information (DCI), wherein information carried in one or more indication fields in the DCI and/or radio network temporary identifier (RNTI) scrambled on the DCI indicate that the DCI is used to schedule the transmission of a first report, wherein the first report is a channel state information (CSI) report during a beam management process or cell handover process triggered by a second communication device.

A receiving unit is used to receive the first report.

Fifthly, embodiments of this application provide a communication device including a processor and a memory interconnected thereto. The memory is used to store a computer program, and the processor is configured to execute the computer program to perform the method as described in the first aspect or any optional embodiment of the first aspect, or to perform the method as described in the second aspect or any optional embodiment of the second aspect.

In a sixth aspect, embodiments of this application provide a chip including a processor and an interface, the processor and the interface being coupled; the interface is used to receive and/or output signals, and the processor is used to execute code instructions to perform the method as described in the first aspect or any optional embodiment of the first aspect, or to perform the method as described in the second aspect or any optional embodiment of the second aspect.

In a seventh aspect, embodiments of this application provide a module device, which includes a communication module, a power module, a storage module, and a chip module, wherein: the power module is used to provide power to the module device; the storage module is used to store data and/or instructions; the communication module communicates with external devices; and the chip module is used to call the data and/or instructions stored in the storage module to execute the method as described in the first aspect or any optional embodiment of the first aspect, or to execute the method as described in the second aspect or any optional embodiment of the second aspect.

Eighthly, embodiments of this application provide a computer-readable storage medium storing a computer program, the computer program including program instructions that, when executed by a computer, implement the method as described in the first aspect or any optional embodiment of the first aspect, or implement the method as described in the second aspect or any optional embodiment of the second aspect.

Ninthly, embodiments of this application provide a computer program product, which includes a computer program or computer code, which, when run on a computer, implements the method described in the first aspect or any optional implementation of the first aspect, or implements the method described in the second aspect or any optional implementation of the second aspect.

In a tenth aspect, embodiments of this application provide a communication system, which includes a terminal device and a network device.

The beneficial effects of the technical solutions provided in the second to tenth aspects of the embodiments of this application can be referred to the beneficial effects of the technical solutions provided in the first aspect, and will not be repeated here.

Attached Figure Description

Figure 1 is a schematic diagram of the structure of a communication system provided in an embodiment of this application;

Figure 2 is a flowchart illustrating a communication method provided in an embodiment of this application;

Figure 3 is a schematic diagram of the structure of a communication device provided in an embodiment of this application;

Figure 4 is a schematic diagram of another communication device provided in an embodiment of this application;

Figure 5 is a schematic diagram of another communication device provided in an embodiment of this application;

Figure 6 is a schematic diagram of the structure of a module device provided in an embodiment of this application.

Detailed Implementation

In this embodiment of the application, unless otherwise stated, the character "/" indicates that the preceding and following objects are in an OR relationship. For example, A/B can represent A or B. "AND/OR" describes the relationship between the associated objects, indicating that three relationships can exist. For example, A AND/OR B can represent: A existing alone, A and B existing simultaneously, and B existing alone.

It should be noted that the terms "first" and "second" used in the embodiments of this application are used only for distinguishing descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated, nor should they be construed as indicating or implying order.

In the embodiments of this application, "at least one" refers to one or more items, and "more than one" refers to two or more items. Furthermore, "at least one of the following" or similar expressions refer to any combination of these items, which may include any combination of a single item or a plurality of items. For example, at least one of A, B, or C can represent: A, B, C, A and B, A and C, B and C, or A, B, and C. Each of A, B, and C can be an element itself or a set containing one or more elements.

In this application, terms such as "exemplary," "in some embodiments," and "in another embodiment" are used to indicate that something is an example, illustration, or description. Any embodiment or design described as "exemplary" in this application should not be construed as being more preferred or advantageous than other embodiments or designs. Specifically, the use of the term "exemplary" is intended to present the concept in a concrete manner.

In the embodiments of this application, the terms "of," "corresponding (relevant)," and "corresponding" may sometimes be used interchangeably. It should be noted that, without emphasizing the distinction, their meanings are consistent. Similarly, in the embodiments of this application, "communication" and "transmission" may sometimes be used interchangeably. It should be noted that, without emphasizing the distinction, their meanings are consistent. For example, transmission can include sending and/or receiving, and can be a noun or a verb.

In this embodiment of the application, "equal to" can be used with "greater than" or "less than", but not simultaneously with both. It should be noted that when "equal to" is used with "greater than", it applies to the technical solution adopted by "greater than"; when "equal to" is used with "less than", it applies to the technical solution adopted by "less than".

Please refer to Figure 1, which is a schematic diagram of a communication system provided in an embodiment of this application. This communication system may include, but is not limited to, one or more network devices and one or more terminal devices. As shown in Figure 1, one network device and one terminal device are used as examples. In Figure 1, the network device is exemplified by a base station, and the terminal device is exemplified by a mobile phone. The terminal device can establish a wireless link with the network device for communication. The communication system shown in Figure 1 includes, but is not limited to, network devices and terminal devices, and may also include other communication devices. The number and form of the devices shown in Figure 1 are for illustrative purposes and do not constitute a limitation on the embodiments of this application.

In this application embodiment, the terminal device is a device with wireless transceiver capabilities, which may be referred to as a terminal, user equipment (UE), mobile station (MS), mobile terminal (MT), access terminal, vehicle-mounted terminal, industrial control terminal, UE unit, UE station, mobile station, remote station, remote terminal, mobile device, wireless communication device, UE agent, or UE device, etc. The terminal device can be fixed or mobile. It should be noted that the terminal device can support at least one wireless communication technology, such as Long Term Evolution (LTE) or New Radio (NR). For example, terminal devices can be mobile phones, tablets, desktop computers, laptops, all-in-one computers, in-vehicle terminals, virtual reality (VR) terminals, augmented reality (AR) terminals, wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in remote medical surgery, wireless terminals in smart grids, wireless terminals in transportation safety, and wireless terminals in smart cities. This includes wireless terminals in cities, smart homes, cellular phones, cordless phones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, personal digital assistants (PDAs), handheld devices with wireless communication capabilities, computing devices or other processing devices connected to a wireless modem, wearable devices, terminals in future mobile communication networks, or terminals in future evolved public land mobile networks (PLMNs). In some embodiments of this application, the terminal may also be a device with transceiver capabilities, such as a chip system. The chip system may include chips and other discrete components.

In this application embodiment, the network device is a device that provides wireless communication functions for terminal devices, and can also be referred to as an access network device, radio access network (RAN) device, etc. The network device can support at least one wireless communication technology, such as LTE, NR, etc. For example, the network device includes, but is not limited to: next-generation node B (gNB) in 5th-generation (5G) mobile communication systems, base stations in 6th-generation (6G) mobile communication systems, 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 node B, or home node B (HNB)), baseband unit (BBU), transmitting and receiving point (TRP), transmitting point (TP), mobile switching center, etc. Network devices can also be wireless controllers, centralized units (CUs), and/or distributed units (DUs) in cloud radio access network (CRAN) scenarios, or they can be relay stations, access points, vehicle-mounted devices, terminal devices, wearable devices, and network devices in future mobile communications or future evolved PLMNs. In some embodiments, network devices can also be means for providing wireless communication capabilities to terminal devices, such as chip systems. For example, a chip system may include chips, and may also include other discrete devices.

Before introducing the specific solutions of the embodiments of this application, let's first introduce the technical terms involved in the embodiments of this application:

1. Beam management process or cell handover process triggered by terminal equipment

In this embodiment, the beam management process or cell handover process triggered by the terminal device is in contrast to the beam management process or cell handover process controlled by the network device. In the network device-controlled beam management process or cell handover process, the timing of when the terminal device begins measuring the reference signal on the reference signal resource and when it sends a beam report to the network transmitting device is controlled by the network device. For example, when the network device determines that the beam quality is relatively poor, it configures reference signal resources for the terminal device to measure, and the terminal device measures the reference signal on the reference signal resource. The network device-controlled beam management process or cell handover process requires a significant time delay. Because the network device cannot promptly obtain information about changes in the channel quality of the terminal device, beam/cell handover is not timely and cannot well match the current channel conditions. To better track channel changes, a terminal device-triggered beam management process or cell handover process is proposed. In the terminal device-triggered beam management process or cell handover process, the terminal device autonomously determines when to begin measuring and reporting the reference signal on the reference signal resource. For example, network devices pre-configure measurement events and multiple reference signal resources. These measurement events include conditions for determining the signal quality of the beam. Terminal devices can measure reference signals on these reference signal resources. If the measurement results satisfy the measurement event, the terminal device actively sends a report to the network device. This report may include the identifier of the reference signal resource that satisfies the measurement event, as well as the measurement results of the reference signals on that resource. The network device can then perform beam management or cell handover based on the reported measurement results. In this embodiment, beam management can refer to beam measurement, beam reporting, or beam handover. In this case, the report sent by the terminal device is a beam report. In this embodiment, cell handover can refer to cell handover during Layer 1 or Layer 2 triggered mobility management (L1/L2 LTM) processes, or it can be cell handover during Layer 3 mobility management (L3 LTM) processes. In this case, the report sent by the terminal device is an LTM report or a Layer 3 measurement report.

It should be noted that the cell handover process triggered by the terminal device can refer to the process where the terminal device actively initiates an LTM report or Layer 3 measurement report based on the measurement results meeting the measurement event. Whether a cell handover is ultimately required can be determined by the network device based on the report sent by the terminal. Alternatively, the cell handover process triggered by the terminal device can also refer to the process where, after the terminal device actively initiates an LTM report or Layer 3 measurement report based on the measurement results meeting the measurement event, a cell handover is directly performed (such as handover to the optimal cell indicated by the terminal device in the report).

In this embodiment of the application, "terminal device triggered" can be replaced with terminal device enabled, event triggered, event driven, etc.

"Terminal device triggered cell handover process" can be replaced with "Terminal device triggered LTM process" or "Terminal device triggered Layer 3 mobility management process".

"CSI report triggered by terminal device during cell handover" can be replaced with "LTM report triggered by terminal device" or "Layer 3 measurement report triggered by terminal device".

"Beam management process triggered by terminal device" can be replaced with "beam reporting process triggered by terminal device", or "beam measurement process triggered by terminal device", or "beam switching process triggered by terminal device".

"CSI report triggered by terminal device during beam management process" can be replaced with "beam report triggered by terminal device" or "beam measurement report triggered by terminal device".

2. Current beam, candidate beam

In one implementation, the current beam in this embodiment may refer to the beam currently used by the terminal device during beam management or cell handover. The candidate beam may refer to a beam configured by the network device during beam management or cell handover for the terminal device to measure, so that the network device can determine the possible beam to which it may hand over based on the measurement results of the terminal device.

In one implementation, the current beam in this embodiment may refer to a beam that has been activated by the network device during the beam management process or cell handover process (the terminal device may not necessarily be using the activated beam). A candidate beam may refer to a beam configured by the network device during the beam management process or cell handover process for measurement by the terminal device, so that the network device can determine the beam that may be activated based on the measurement results of the terminal device.

For example, in the two implementations above, the number of current beams can be one, or the number of current beams can be multiple. The current beam can also be called the serving beam. Each cell can provide one or more beams. The current beam can be the beam of the serving cell of the terminal device, or it can be the beam of another cell besides the serving cell. For example, the current beam can be the beam of a neighboring cell of the serving cell.

For example, in the two implementations above, the candidate beam can be a beam within the serving cell or a beam from another cell outside the serving cell, such as a beam from a candidate cell or a beam associated with a non-serving cell's Physical Cell Identifier (PCI) (also known as an additional PCI). A candidate beam can also be referred to as: a suggested beam, a proposed new beam, an available beam, a beam with continuously improving quality, a new beam, etc.

3. Measurement Events

In the embodiments of this application, the measurement event may include conditions for determining the signal quality of the current beam, and/or conditions for determining the signal quality of a candidate beam. For example, the measurement event includes: the signal quality of the current beam is less than a first threshold. Another example is that the measurement event includes: the signal quality of the current beam is less than the first threshold, and the signal quality of the candidate beam is greater than a second threshold. Yet another example is that the measurement event includes: the signal quality of the candidate beam is greater than the second threshold. Still another example is that the measurement event includes: the signal quality of the candidate beam is greater than the signal quality of the current beam.

It is understood that the above description of the measurement events is merely an example and does not constitute a limitation of this application.

4. The reference signal resource corresponding to the beam or the beam corresponding to the reference signal resource.

In this embodiment, the correspondence between beams and reference signal resources can be understood as follows: the reference signal resource is a reference signal resource used to measure the signal quality of the beam. The signal quality of the beam corresponding to the reference signal resource can be reflected by the measurement results (e.g., RSRP or SINR) of the reference signal (e.g., SSB or CSI-RS) on the reference signal resource. Optionally, the correspondence between beams and reference signal resources can be configured by the network device.

In this application embodiment, the beam may include a current beam, and the reference signal resource used to measure the signal quality of the current beam is the reference signal resource corresponding to the current beam. In this application embodiment, the beam may include candidate beams, and the reference signal resource used to measure the signal quality of the candidate beams is the reference signal resource corresponding to the candidate beams.

5. Residential area

A cell can be described as a carrier, component carrier (CC), subband, frequency band, bandwidth, frequency point, physical cell, serving cell, transmission and receiving point (TRP), etc. This article uses the term "cell," but "cell" and the above equivalent concepts can be used interchangeably.

Please refer to Figure 2, which is a flowchart illustrating a communication method provided in an embodiment of this application. As shown in Figure 2, the communication method of this embodiment includes, but is not limited to, the following steps:

201. The network device sends the DCI. Correspondingly, the terminal device receives the DCI.

Information carried in one or more indication fields in the DCI and/or a Radio Network Temporary Identity (RNTI) scrambled onto the DCI indicates that the DCI is used to schedule the transmission of a first report, which is a CSI report triggered by a terminal device during beam management or cell handover. In this embodiment, indicating that the DCI is used to schedule the transmission of the first report can be understood as meaning that the uplink channel resources indicated by the DCI are used for the transmission of the first report. It is understood that the way the DCI indicates uplink channel resources can be by using existing resource indication fields in the DCI.

In this application embodiment, the indicator field can be replaced with "field" or "signaling field".

The one or more indication fields can be newly added fields in the DCI, or they can be existing indication fields in the DCI. For example, information carried in an existing indication field indicates that the DCI is used to schedule the first report transmission. Existing indication fields may include, for example, at least one of the following: Hybrid Automatic Repeat Request (HARQ) process number field, Redundancy Version (RV) field, Modulation and Coding Scheme (MCS) field, New Data Indicator (NDI) field, CSI Request field, Frequency Domain Resource Allocation (FDRA) field, and Uplink Shared Channel Indicator field (e.g., UL-SCH indicator).

The RNTI used to scramble the DCI can be a new RNTI that indicates that the DCI is an uplink channel resource required for scheduling the first report transmission; or the RNTI used to scramble the DCI can be a Configured Scheduling RNTI (CS-RNTI). It is understandable that if the RNTI used to scramble the DCI is a CS-RNTI, since the DCI used for beam indication, the DCI used for activation and release of the semi-persistent scheduling (SPS) Physical Downlink Shared Channel (PDSCH), and the DCI used for activation and release of the UL Type 2 configured grant (CG) Physical Uplink Shared Channel (PUSCH) also use CS-RNTI, in order to distinguish them, in this embodiment of the application, it is also necessary to combine the information carried by one or more indication fields in the DCI to jointly indicate that the function of the DCI is to schedule the transmission of the first report. That is, by combining the CS-RNTI scrambled on the DCI and the information carried by one or more indication fields, it is indicated that the DCI is used to schedule the uplink channel resources required for the transmission of the first report.

In one implementation, the DCI can be a DCI used for scheduling uplink transmissions, such as a UL DCI, and the DCI format can be DCI format 0_0, DCI format 0_1, DCI format 0_2, or DCI format 0_3. In another implementation, the DCI can be a DCI used for scheduling downlink transmissions, such as a DL DCI, and the DCI format can be DCI format 1_0, DCI format 1_1, DCI format 1_2, or DCI format 1_3.

If the DCI is used for scheduling uplink transmissions, it can be a UL DCI that does not schedule uplink data transmission but only schedules the uplink channel resources required for the first report transmission; or, the DCI can also schedule uplink data transmission, meaning it schedules both the uplink channel resources required for the first report transmission and uplink data transmission. If the DCI is used for scheduling downlink transmissions, it can be a DL DCI that does not schedule downlink data transmission but only schedules the uplink channel resources required for the first report transmission; or, the DCI can also schedule downlink data transmission, meaning it schedules both the uplink channel resources required for the first report transmission and downlink data transmission.

In some embodiments, before the network device sends the DCI, the terminal device may measure the reference signals on the reference signal resources of at least one cell configured by the network device and obtain the measurement results. If the measurement results of the reference signals on the reference signal resources of one or more cells satisfy a measurement event, the terminal device sends a request message to the network device, which requests the network device to schedule the uplink channel resources required for the first report transmission. After receiving the request message, the network device, in response to the request message, sends the DCI to the terminal device.

For example, if the request message sent by the terminal device includes the identifiers of one or more cells in which the measurement result satisfies the measurement event, the carrier indicator field (e.g., Carrier indicator) in the DCI can indicate the identifier of one of the one or more cells in which the measurement result satisfies the measurement event. The cell indicated by the carrier indicator field can be the cell in which the uplink channel resources required for the network device to schedule the first report transmission are located.

202. The terminal device sends the first report based on the DCI. Correspondingly, the network device receives the first report.

In the embodiments of this application, the first report can be understood as a "CSI report", or an "LTM report" or a "beam report", etc. The name is not limited and can also be other names.

The terminal device can send the first report on the uplink channel resources scheduled by DCI. The first report can carry uplink control information (UCI) on PUSCH, or the first report can carry UCI on PUCCH.

The following are examples of the contents included in the first report:

In one implementation, the first report may indicate the identifiers of one or more cells whose measurement results satisfy a measurement event, meaning that the measurement results of the reference signals on the reference signal resources of the one or more cells satisfy the measurement event. For example, if the cells whose measurement results satisfy the measurement event belong to a cell set, it can be understood that the measurement results of the reference signals on the reference signal resources of all cells in the cell set satisfy the measurement event, and correspondingly, beam switching or cell switching also applies to all cells in the cell set. In this example, it can be understood that if the measurement results of the reference signals on the reference signal resources of any cell belonging to the same cell set satisfy the measurement event, then it indicates that the measurement results of the reference signals on the reference signal resources of all cells in the cell set satisfy the measurement event. In this example, the first report may also indicate the identifier of the cell set to which the cells whose measurement results satisfy the measurement event belong, and the cell set may exist in the form of a cell list. Further optionally, the first report may also include the measurement results corresponding to each of the one or more cells satisfying the measurement event.

In another implementation, the first report may include at least one bit allocated to each of the multiple cells. For example, at least one bit allocated to cell 1 is the first and second bits, at least one bit allocated to cell 2 is the third and fourth bits, and at least one bit allocated to cell 3 is the fifth, sixth, and seventh bits. The at least one bit allocated to each cell is used to carry the measurement result of that cell when the measurement result of that cell satisfies the measurement event. For example, if the measurement result of cell 1 satisfies the measurement event, then the first and second bits allocated to cell 1 are used to carry the measurement result of cell 1. For cells whose measurement results do not satisfy the measurement event, the at least one bit allocated to that cell is set to invalid or reserved. This implementation not only indicates the measurement results of cells that satisfy the measurement event but also implicitly indicates the cells whose measurement results satisfy the measurement event.

The following is an example of the information carried by one or more indicator fields in a DCI:

Method 1: The information carried by one or more indicator fields includes the bit values in one or more indicator fields.

In Method 1, the DCI can be identified by the bit values of one or more indicator fields, indicating that it is used to schedule uplink channel resources required for the first report transmission. These one or more indicator fields may include at least one of the following: HARQ process number field, RV field, MCS field, NDI field, CSI request field, FDRA field, Uplink Shared Channel Indicator (UL-SCH) field, etc. The bit values of the indicator fields can be specific values, such as all 0s or all 1s, or other values. Different indicator fields can also have different bit values; for example, the HARQ process number field can be all 1s, and the RV field can be all 0s. Several examples are provided below for illustration:

Example 1: The HARQ process ID field has all 1s, the RV field has all 0s, and the MCS field has all 1s.

Example 2: The bits of the HARQ process number field are all 1s, the bits of the RV field are all 1s, and the bits of the MCS field are all 1s.

In Examples 1 and 2, the NDI field can take the value of all 0s or all 1s.

Example 3: The bits of the HARQ process number field are all 1s, and the bits of the NDI field are all 1s.

Example 4: The bits of the NDI field are all 1s.

In Examples 1, 2, 3, and 4, if the DCI does not schedule uplink data transmission but is only used to schedule the uplink channel resources required for the first report transmission, the bit value of the uplink shared channel indicator field in the DCI can be all 0s. If the DCI schedules both the uplink channel resources required for the first report transmission and uplink data transmission, the bit value of the uplink shared channel indicator field can be all 1s.

Example 5: The CSI Request field has all bits set to 0, and the Uplink Shared Channel Indicator field has all bits set to 0.

In Example 5, the uplink shared channel indicator field being all zeros can also indicate that the DCI has not scheduled uplink data transmission. The DCI is indicated by both the CSI request field and the uplink shared channel indicator field being all zeros, suggesting that it is using the uplink channel resources required for scheduling the first report transmission. Alternatively, the DCI can be indicated to use only the CSI request field being all zeros, suggesting that it is using the uplink channel resources required for scheduling the first report transmission.

Example 6: The bit values in the CSI request field are the same as those carried in the request message. This request message is sent by the terminal device to the network device to request the uplink channel resources required for the first report transmission.

For example, the request message may include a special indication field whose bit values are the same as those carried in the CSI request field of the DCI, to indicate that the DCI is sent by the network device in response to a request message received from the terminal device, and that the DCI is used to schedule uplink channel resources required for the first report transmission.

Optionally, in Examples 1 to 6 above, the FDRA field values in DCI satisfy the following rules: for dynamic switching or frequency domain resource allocation of type 0 (i.e., Type 0), the FDRA bit value is all 0; for frequency domain resource allocation of type 1 (Type 1), the FDRA bit value is all 1.

Method 2: The information carried by one or more indication fields may include the trigger status carried in the CSI request field.

If the report configuration identifier indicated by the trigger state carried in the CSI request field of the DCI is the report configuration information used to identify the first report, then it can be determined that the DCI is used to schedule the uplink channel resources required for the transmission of the first report.

In one implementation, the CSI request field carries a trigger state, which can indicate one or more report configuration identifiers, such as a report config ID. Each of these one or more report configuration identifiers identifies the configuration information of a first report. For example, the network device can pre-configure or pre-define, the report configuration identifiers used to identify the configuration information of the first report, and the correspondence between these report configuration identifiers and trigger states. For instance, report configuration identifier 1 can be pre-defined as the report configuration identifier used to identify the configuration information of the first report, and this report configuration identifier 1 can correspond to trigger state 1, i.e., trigger state 1 indicates report configuration identifier 1. When the trigger state carried in the CSI request field of the DCI is trigger state 1, it can be determined that the DCI is for scheduling uplink channel resources required for the transmission of the first report. The above example uses one trigger state indicating one report configuration identifier; a trigger state can also indicate multiple report configuration identifiers, i.e., one trigger state corresponds to multiple report configuration identifiers, and each report configuration identifier is used to identify the report configuration information of a first report. Furthermore, when a trigger state corresponds to multiple report configuration identifiers, each report configuration identifier can identify the report configuration information of the first report on different cells.

In another implementation, the CSI request field carries multiple trigger states, each of which can indicate a report configuration identifier used to identify the configuration information of a first report. For example, the network device can pre-configure or the protocol can pre-define multiple report configuration identifiers, each used to identify the configuration information of a first report, and each report configuration identifier corresponds to a trigger state. The trigger state corresponding to the report identifier indicates that report configuration identifier. For example, report configuration identifier 1 and report configuration identifier 2 can be pre-defined as report configuration identifiers used to identify the configuration information of a first report. It can be understood that report configuration identifier 1 and report configuration identifier 2 are used to identify the configuration information of different first reports. Report configuration identifier 1 can correspond to trigger state 1, i.e., trigger state 1 indicates report configuration identifier 1, and report configuration identifier 2 can correspond to trigger state 2, i.e., trigger state 2 indicates report configuration identifier 2. When the trigger states carried in the CSI request field of the DCI are trigger state 1 and trigger state 2, it can be determined that the DCI is used to schedule the uplink channel resources required for the transmission of the first report. The above example uses a CSI request field carrying two trigger states. Furthermore, when a trigger state indicates a report configuration identifier, the report configuration identifier indicated by each trigger state can identify the report configuration information of the first report on different cells.

Understandably, in Method 2, if the trigger status indicator carried by the CSI request domain indicates multiple report configuration identifiers, the terminal device can send multiple first reports. The multiple report configuration identifiers indicated by the trigger status carried by the CSI request domain can be achieved through one or more trigger status indicators, as detailed in the specific description of Method 2.

The following example illustrates RNTI with DCI scrambling:

The RNTI scrambled on the DCI can be a new RNTI or an existing RNTI such as CS-RNTI. If the RNTI scrambled on the DCI is an existing RNTI (such as CS-RNTI), it is also necessary to combine the information carried by one or more indicator fields in the DCI to indicate that the DCI is used for scheduling the transmission of the first report. For example, it can combine the information carried by one or more indicator fields described in Method 1 and/or Method 2 above.

The following example illustrates the cell where the terminal device sends its first report.

The terminal device can send a first report in the first cell. The first cell is described below as an example:

Example 1: The first cell is the cell in which the first report is configured.

The cell in which the first report is configured can be understood as the cell in which the configuration information of the first report is transmitted. If the terminal device needs to send multiple first reports, each first report is sent in its respective configured cell. For example, if the terminal device needs to send two first reports, namely report 1 and report 2, where report 1 is configured in cell 1 and report 2 is configured in cell 2, then report 1 is sent in cell 1 and report 2 is sent in cell 2.

Example 2: The first cell is the cell indicated by the configuration information of the first report for sending the first report.

The configuration information for the first report indicates the cell in which it will be sent. If the terminal device needs to send multiple first reports, each first report will be sent in the cell indicated by its respective configuration information. For example, if the terminal device needs to send two first reports, namely Report 1 and Report 2, and the configuration information for Report 1 indicates that Report 1 will be sent in cell 3, and the configuration information for Report 2 indicates that Report 2 will be sent in cell 4, then Report 1 will be sent in cell 3 and Report 2 will be sent in cell 4.

Example 3: The first cell is a cell used to transmit reference signal resource configuration information, which is the reference signal resource configuration information indicated by the configuration information in the first report.

The configuration information in the first report indicates an identifier for reference signal resource configuration information. This identifier identifies the reference signal resource configuration information, which indicates the reference signal resources used for signal quality measurement of the current beam and/or candidate beams. This reference signal resource configuration information is sent from the network device to the terminal device. In Example 3, the first report is sent in the first cell that transmits the reference signal resource configuration information.

The configuration information in the first report indicates the reference signal resource configuration information transmitted in each of the multiple cells. The first cell used to send the first report is either the cell with the largest cell index value or the cell with the smallest cell index value among the multiple cells. For example, the configuration information in the first report indicates reference signal resource configuration information 1 and reference signal resource configuration information 2. Reference signal resource configuration information 1 is transmitted in cell 1, and reference signal resource configuration information 2 is transmitted in cell 2. The first cell can be cell 1, that is, the cell with the smallest cell index value.

Example 4: The first cell is the cell where the reference signal resource is located. The reference signal resource is indicated by the configuration information in the first report and is used to measure the signal quality of the current beam and/or the signal quality of the candidate beam of the first cell. The measurement result of the reference signal resource is used to determine whether the first cell meets the measurement event.

The configuration information in the first report will indicate reference signal resource configuration information, which indicates reference signal resources used for signal quality measurements of the current beam and/or candidate beams of one or more cells. The reference signal resources used for signal quality measurements of the current beam and/or candidate beams of each cell can be one or more, and this application does not limit this.

If the reference signal resource configuration information indicates a reference signal resource for signal quality measurement of the current beam and/or candidate beam of a cell, the measurement result of the reference signal resource is used to determine whether the cell meets the measurement event, and the first cell for sending the first report is the cell where the reference signal resource is located.

If the reference signal resource configuration information indicates reference signal resources for signal quality measurement of the current beam and/or candidate beams of multiple cells, the measurement results of the reference signal resources of each cell are used to determine whether the cell meets the measurement event. The first cell used to send the first report is the cell with the largest cell index value or the cell with the smallest cell index value among the multiple cells. For example, if the reference signal resource configuration information indicates reference signal resource 1 for signal quality measurement of the current beam and/or candidate beam of cell 1 and reference signal resource 2 for signal quality measurement of the current beam and/or candidate beam of cell 2, the measurement results of reference signal resource 1 are used to determine whether cell 1 meets the measurement event, and the measurement results of reference signal resource 2 are used to determine whether cell 2 meets the measurement event. The first cell used to send the first report can be cell 1, i.e., the cell with the smallest cell index value.

Example 5: The first cell is the cell where the uplink channel resources scheduled by DCI are located.

DCI can schedule uplink channel resources of one or more cells. For example, DCI can schedule uplink channel resources of cell 1 and uplink channel resources of cell 2.

If the DCI schedules uplink channel resources for one cell, the first cell used to send the first report is the cell scheduled by the DCI. If the DCI schedules uplink channel resources for multiple cells, the first cell used to send the first report can be the cell with the largest cell index value or the cell with the smallest cell index value among the multiple cells.

Example 6: The first cell is the cell whose measurement results satisfy the measurement event. The measurement results include the signal quality measurement results of the current beam and/or the signal quality measurement results of the candidate beam. The measurement event includes a first condition and/or a second condition. The first condition is used to determine the signal quality of the current beam, and the second condition is used to determine the signal quality of the candidate beam.

The terminal device can measure reference signals on reference signal resources of one or more cells. If the measurement result of the reference signal on the reference signal resource satisfies a measurement event, then the cell containing the reference signal resource is determined to be a cell whose measurement result satisfies the measurement event. It is possible for the measurement results of reference signals on reference signal resources of one or more cells to satisfy the measurement event; that is, there can be one or more cells whose measurement results satisfy the measurement event.

If the measurement result of the reference signal on the reference signal resource of a cell satisfies the measurement event, then the first cell used to send the first report is the cell whose measurement result satisfies the measurement event.

If the measurement results of the reference signals on the reference signal resources of multiple cells satisfy the measurement event, then the first cell used to send the first report can be the cell with the largest cell index value or the cell with the smallest cell index value among the multiple cells whose measurement results satisfy the measurement event.

Please refer to Figure 3, which is a schematic diagram of a communication device provided in an embodiment of this application. This communication device can be applied to a terminal device. For example, the communication device can be a terminal device or a device within the terminal device, such as a chip or chip module within the terminal device, or a device that can be used in conjunction with the terminal device. The communication device 100 shown in Figure 3 may include a receiving unit 110 and a transmitting unit 120. Wherein:

The receiving unit 110 is configured to receive downlink control information (DCI), wherein information carried in one or more indication fields in the DCI and/or radio network temporary identifier (RNTI) scrambled on the DCI indicate that the DCI is used to schedule the transmission of a first report, wherein the first report is a channel state information (CSI) report during a beam management process or cell handover process triggered by the communication device.

The sending unit 120 is used to send the first report according to the DCI.

In one possible implementation, the one or more indication fields include at least one of the following: Hybrid Automatic Repeat Request (HARQ) process number field, Redundancy Version (RV) field, Modulation and Coding Strategy (MCS) field, New Data Indicator (NDI) field, CSI Request field, Frequency Domain Resource Allocation (FDRA) field, and Uplink Shared Channel Indicator field.

In one possible implementation, the information carried by the one or more indication fields includes: bit values in the one or more indication fields, the bit values in the one or more indication fields indicating the uplink channel resources required by the DCI for scheduling the first report transmission.

In one possible implementation, the one or more indication fields include a CSI request field, wherein the bit values in the CSI request field are the same as the bit values carried in the request message, which is used by the terminal device to request uplink channel resources required for the first report transmission from the network device.

In one possible implementation, the one or more indication fields include a CSI request field, and the information carried by the one or more indication fields includes a trigger state carried by the CSI request field, the trigger state being used to indicate one or more report configuration identifiers, each of the one or more report configuration identifiers being used to identify configuration information of a first report.

In one possible implementation, the one or more indication fields include a CSI request field, and the information carried by the one or more indication fields includes a plurality of trigger states carried by the CSI request field, each of the plurality of trigger states being used to indicate a report configuration identifier, the report configuration identifier being used to identify configuration information of a first report.

In one possible implementation, the sending unit 120 is specifically used to send the first report in the first cell;

Wherein, the first cell is the cell in which the first report is configured; or, the first cell is the cell indicated by the configuration information of the first report for sending the first report; or, the first cell is a cell for transmitting reference signal resource configuration information, the reference signal resource configuration information being the reference signal resource configuration information indicated by the configuration information of the first report; or, the first cell is the cell where reference signal resources are located, the reference signal resources being indicated by the configuration information of the first report and used to measure the signal quality of the current beam and/or the signal quality of candidate beams in the first cell; or, the first cell is the cell where the uplink channel resources scheduled by the DCI are located; or, the first cell is the cell where the measurement result satisfies the measurement event, the measurement result including the signal quality measurement result of the current beam and/or the signal quality measurement result of the candidate beam, the measurement event including a first condition and/or a second condition, the first condition being used to determine the signal quality of the current beam, and the second condition being used to determine the signal quality of the candidate beam.

In one possible implementation, the first cell is a cell used for transmitting reference signal resource configuration information, wherein the reference signal resource configuration information is the reference signal resource configuration information indicated by the configuration information reported by the first cell, including:

If the configuration information in the first report indicates the reference signal resource configuration information transmitted in each of the multiple cells, the first cell is the cell with the largest cell index value or the cell with the smallest cell index value among the multiple cells.

In one possible implementation, the first cell is the cell containing the reference signal resource, which is indicated by the configuration information in the first report and is used to measure the signal quality of the current beam and/or the signal quality of the candidate beam in the first cell, including:

If the configuration information in the first report indicates a reference signal resource for measuring the signal quality of the current beam and/or the signal quality of the candidate beam in each of the multiple cells, the first cell is the cell with the largest cell index value or the cell with the smallest cell index value among the multiple cells.

In one possible implementation, the first cell is the cell where the uplink channel resources scheduled by the DCI are located, including:

If the DCI schedules uplink channel resources for each of the multiple cells, the first cell is either the cell with the largest cell index value or the cell with the smallest cell index value among the multiple cells.

In one possible implementation, the first cell is a cell whose measurement result satisfies the measurement event, including:

If the cells that meet the measurement event include multiple cells, the first cell is either the cell with the largest cell index value or the cell with the smallest cell index value among the multiple cells.

For a detailed description of the specific embodiments of Figure 3, please refer to the description of the foregoing method embodiments, which will not be repeated here.

Please refer to Figure 4, which is a schematic diagram of another communication device provided in an embodiment of this application. This communication device can be applied to a network device. For example, the communication device can be a network device or a device within a network device, such as a chip or chip module within the network device, or a device that can be used in conjunction with a network device. The communication device 200 shown in Figure 4 may include a transmitting unit 210 and a receiving unit 220. The communication device in this embodiment of the application can be a first communication device, wherein:

Transmitting unit 210 is used to transmit downlink control information (DCI), wherein information carried by one or more indication fields in the DCI and/or radio network temporary identifier (RNTI) scrambled on the DCI indicate that the DCI is used to schedule the transmission of a first report, wherein the first report is a channel state information (CSI) report during a beam management process or cell handover process triggered by a second communication device.

The receiving unit 220 is used to receive the first report.

In one possible implementation, the one or more indication fields include at least one of the following: Hybrid Automatic Repeat Request (HARQ) process number field, Redundancy Version (RV) field, Modulation and Coding Strategy (MCS) field, New Data Indicator (NDI) field, CSI Request field, Frequency Domain Resource Allocation (FDRA) field, and Uplink Shared Channel Indicator field.

In one possible implementation, the information carried by the one or more indication fields includes: bit values in the one or more indication fields, the bit values in the one or more indication fields indicating the uplink channel resources required by the DCI for scheduling the first report transmission.

In one possible implementation, the one or more indication fields include a CSI request field, wherein the bit values in the CSI request field are the same as the bit values carried in the request message, which is used by the terminal device to request uplink channel resources required for the first report transmission from the network device.

In one possible implementation, the one or more indication fields include a CSI request field, and the information carried by the one or more indication fields includes a trigger state carried by the CSI request field, the trigger state being used to indicate one or more report configuration identifiers, each of the one or more report configuration identifiers being used to identify configuration information of a first report.

In one possible implementation, the one or more indication fields include a CSI request field, and the information carried by the one or more indication fields includes a plurality of trigger states carried by the CSI request field, each of the plurality of trigger states being used to indicate a report configuration identifier, the report configuration identifier being used to identify configuration information of a first report.

In one possible implementation, the receiving unit 220 is specifically used for:

The first report is received in the first cell;

Wherein, the first cell is the cell in which the first report is configured; or, the first cell is the cell indicated by the configuration information of the first report for sending the first report; or, the first cell is a cell for transmitting reference signal resource configuration information, the reference signal resource configuration information being the reference signal resource configuration information indicated by the configuration information of the first report; or, the first cell is the cell where reference signal resources are located, the reference signal resources being indicated by the configuration information of the first report and used to measure the signal quality of the current beam and/or the signal quality of candidate beams in the first cell; or, the first cell is the cell where the uplink channel resources scheduled by the DCI are located; or, the first cell is the cell where the measurement result satisfies the measurement event, the measurement result including the signal quality measurement result of the current beam and/or the signal quality measurement result of the candidate beam, the measurement event including a first condition and/or a second condition, the first condition being used to determine the signal quality of the current beam, and the second condition being used to determine the signal quality of the candidate beam.

In one possible implementation, the first cell is a cell used for transmitting reference signal resource configuration information, wherein the reference signal resource configuration information is the reference signal resource configuration information indicated by the configuration information reported by the first cell, including:

If the configuration information in the first report indicates the reference signal resource configuration information transmitted in each of the multiple cells, the first cell is the cell with the largest cell index value or the cell with the smallest cell index value among the multiple cells.

In one possible implementation, the first cell is the cell containing the reference signal resource, which is indicated by the configuration information in the first report and is used to measure the signal quality of the current beam and/or the signal quality of the candidate beam in the first cell, including:

If the configuration information in the first report indicates a reference signal resource for measuring the signal quality of the current beam and/or the signal quality of the candidate beam in each of the multiple cells, the first cell is the cell with the largest cell index value or the cell with the smallest cell index value among the multiple cells.

In one possible implementation, the first cell is the cell where the uplink channel resources scheduled by the DCI are located, including:

If the DCI schedules uplink channel resources for each of the multiple cells, the first cell is either the cell with the largest cell index value or the cell with the smallest cell index value among the multiple cells.

In one possible implementation, the first cell is a cell whose measurement result satisfies the measurement event, including:

If the cells that meet the measurement event include multiple cells, the first cell is either the cell with the largest cell index value or the cell with the smallest cell index value among the multiple cells.

For a detailed description of the specific embodiments of Figure 4, please refer to the description of the foregoing method embodiments, which will not be repeated here.

Please refer to Figure 5, which is a schematic diagram of a communication device provided in an embodiment of this application. This device is used to implement the functions of the terminal device in the above embodiments, or to implement the functions of the network device in the above embodiments. The communication device 300 can be a terminal device or a device for a terminal device. The device for a terminal device can be a chip system or a chip within the terminal device. The communication device can also be a network device or a device for a network device. The device for a network device can be a chip system or a chip within the network device. The chip system can be composed of chips or can include chips and other discrete components.

The communication device 300 includes at least one processor 320 for implementing the data processing functions of the terminal device or network device in the method provided in this application embodiment. The communication device 300 may also include a communication interface 310 for implementing the transmit and receive operations of the terminal device or network device in the method provided in this application embodiment. In this application embodiment, the processor 320 may be a Central Processing Unit (CPU), or it may be other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or any conventional processor. In this application embodiment, the communication interface 310 may be a transceiver, circuit, bus, module, or other type of communication interface for communicating with other devices via a transmission medium. For example, the communication interface 310 enables the communication device 300 to communicate with other devices. The processor 320 uses the communication interface 310 to send and receive data, and is used to implement the method described in the above method embodiments.

The communication device 300 may further include at least one memory 330 for storing program instructions and/or data. The memory 330 is coupled to the processor 320. The coupling in this embodiment is an indirect coupling or communication connection between devices, units, or modules, and may be electrical, mechanical, or other forms, used for information exchange between devices, units, or modules. The processor 320 may operate in conjunction with the memory 330. The processor 320 may execute program instructions stored in the memory 330. At least one of the at least one memories may be included in the processor.

When the communication device 300 is powered on, the processor 320 can read the software program in the memory 330, interpret and execute the instructions of the software program, and process the data of the software program. When data needs to be transmitted wirelessly, the processor 320 performs baseband processing on the data to be transmitted and outputs the baseband signal to the radio frequency circuit (not shown in Figure 5). The radio frequency circuit processes the baseband signal and transmits the radio frequency signal outward in the form of electromagnetic waves through the antenna. When data is sent to the communication device 300, the radio frequency circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor 320. The processor 320 converts the baseband signal into data and processes the data.

In another implementation, the radio frequency circuitry and antenna can be set up independently of the processor 320 that performs baseband processing. For example, in a distributed scenario, the radio frequency circuitry and antenna can be arranged remotely, independent of the device.

This embodiment does not limit the specific connection medium between the communication interface 310, processor 320, and memory 330. In Figure 5, the memory 330, processor 320, and communication interface 310 are connected via a bus 340, indicated by a thick line. The connection methods between other components are merely illustrative and not intended to be limiting. The bus can be categorized as an address bus, data bus, control bus, etc. For ease of illustration, only one thick line is used in Figure 5, but this does not imply that there is only one bus or one type of bus.

When the communication device 300 is specifically used in a terminal device, such as when the communication device 300 is a chip or chip system, the communication interface 310 can output or receive baseband signals. When the communication device 300 is specifically used in a terminal device, the communication interface 310 can output or receive radio frequency signals.

It should be noted that the device can execute the relevant steps of the terminal device or network device in the foregoing method embodiments. For details, please refer to the implementation methods provided in the above steps, which will not be repeated here.

For each device or product applied to or integrated into a device, each of its modules can be implemented using hardware such as circuits. Different modules can be located in the same component (e.g., chip, circuit module, etc.) or in different components within the terminal. Alternatively, at least some modules can be implemented using software programs that run on a processor integrated within the terminal, while the remaining (if any) modules can be implemented using hardware such as circuits.

The aforementioned memory can be volatile memory or non-volatile memory, or may include both. Non-volatile memory can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. Volatile memory can be random access memory (RAM), which serves as an external cache. By way of example, but not limitation, many forms of random access memory (RAM) are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous linked dynamic random access memory (SLDRAM), and direct rambus RAM (DR RAM).

This application provides a chip. The chip includes a processor and a memory. The number of processors and the number of memories can be one or more. The processor can execute the methods shown in the above embodiments and the steps performed in related implementations by reading instructions and data stored in the memory.

As shown in Figure 6, Figure 6 is a structural schematic diagram of a module device provided in an embodiment of this application. The module device 400 can perform the relevant steps of the terminal device in the aforementioned method embodiments, or the module device 400 can perform the relevant steps of the network device in the aforementioned method embodiments.

The module device 400 includes a communication module 410, a power module 420, a storage module 430, and a chip module 440. The power module 420 provides power to the module device; the storage module 430 stores data and/or instructions; the communication module 410 communicates with external devices; and the chip module 440 retrieves the data and/or instructions stored in the storage module 430. In conjunction with the communication module 410, the methods shown in the above embodiments and the steps performed in related implementation methods can be executed.

This application also provides a computer-readable storage medium. The computer-readable storage medium stores a computer program, which includes program instructions. When an electronic device executes the program instructions, it implements the steps performed by the terminal device in the methods shown in the above embodiments, or implements the steps performed by the network device in the methods shown in the above embodiments.

The computer-readable storage medium can be an internal storage unit of the terminal device or network device described in any of the foregoing embodiments, such as a hard disk or memory. The computer-readable storage medium can also be an external storage device of the terminal device or network device, such as a plug-in hard disk, smart media card (SMC), secure digital (SD) card, flash card, etc., equipped on the device. Further, the computer-readable storage medium can include both internal and external storage units of the terminal device or network device. The computer-readable storage medium is used to store the computer program and other programs and data required by the terminal device or network device. The computer-readable storage medium can also be used to temporarily store data that has been output or will be output. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that includes one or more sets of available media. The available media can be magnetic media (e.g., floppy disk, hard disk, magnetic tape), optical media (e.g., high-density digital video disc (DVD)), or semiconductor media. Semiconductor media can be solid-state drives (SSDs).

Regarding the modules/units included in the various devices and products described in the above embodiments, they can be software modules/units, hardware modules/units, or a combination of both. For example, for various devices and products applied to or integrated into a chip, all of their modules/units can be implemented using hardware methods such as circuits, or at least some modules/units can be implemented using software programs that run on a processor integrated within the chip, while the remaining (if any) modules/units can be implemented using hardware methods such as circuits; for various devices and products applied to or integrated into a chip module, all of their modules/units can be implemented using hardware methods such as circuits, and different modules/units can be located in the same component (e.g., chip, circuit module, etc.) or different components of the chip module, or at least some modules/units can be implemented using hardware methods such as circuits. The implementation can be done through software programs that run on the processor integrated within the chip module. The remaining modules/units (if any) can be implemented using hardware methods such as circuits. For each device or product applied to or integrated into the data acquisition node, each module/unit can be implemented using hardware methods such as circuits. Different modules/units can be located in the same component (e.g., chip, circuit module, etc.) or in different components within the terminal. Alternatively, at least some modules/units can be implemented through software programs that run on the processor integrated within the data acquisition node. The remaining modules/units (if any) can be implemented using hardware methods such as circuits.

The above embodiments can be implemented, in whole or in part, by software, hardware, firmware, or any other combination thereof. When implemented using software, the above embodiments can be implemented, in whole or in part, as a computer program product. The computer program product includes one or more computer instructions or computer programs. When the computer instructions or computer program are loaded or executed on a computer, all or part of the processes or functions described in the embodiments of this application are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired or wireless means.

It should be understood that in the various embodiments of this application, the order of the above-mentioned processes does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

In the several embodiments provided in this application, it should be understood that the disclosed methods, apparatuses, and systems can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for example, the division of units is merely a logical functional division, and other division methods may exist in actual implementation; for example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection between devices or units may be electrical, mechanical, or other forms.

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

Furthermore, the functional units in the various embodiments of the present invention can be integrated into one processing unit, or each unit can be physically comprised separately, or two or more units can be integrated into one unit. The integrated unit described above can be implemented in hardware or in the form of hardware plus software functional units.

The integrated unit implemented as a software functional unit described above can be stored in a computer-readable storage medium. This software functional unit, stored in a storage medium, includes several instructions to cause a computer device (which may be a personal computer, a server, or a gateway node, etc.) to execute some steps of the methods described in the various embodiments of the present invention.

Those skilled in the art will understand that all or part of the processes in the above embodiments can be implemented by a computer program instructing related hardware. The program can be stored in a computer-readable storage medium, and when executed, it can include the processes of the embodiments of the above methods. The storage medium can be a magnetic disk, optical disk, read-only memory (ROM), or random access memory (RAM), etc.

The above-disclosed embodiments are merely preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art will understand that all or part of the processes for implementing the above embodiments and equivalent variations made in accordance with the claims of this application are still within the scope of this application.

Claims (28)

A communication method, characterized in that it includes: Receive downlink control information (DCI), wherein information carried in one or more indication fields in the DCI and/or radio network temporary identifier (RNTI) scrambled on the DCI indicate that the DCI is used to schedule the transmission of a first report, wherein the first report is a channel state information (CSI) report triggered by a beam management process or cell handover process by a terminal device. The first report is sent according to the DCI. The method as described in claim 1, wherein the one or more indication fields include at least one of the following: Hybrid Automatic Repeat Request (HARQ) process number field, Redundancy Version (RV) field, Modulation and Coding Strategy (MCS) field, New Data Indicator (NDI) field, CSI Request field, Frequency Domain Resource Allocation (FDRA) field, and Uplink Shared Channel Indicator field. The method as described in claim 1 or 2, wherein the information carried by the one or more indication fields includes: bit values in the one or more indication fields, wherein the bit values in the one or more indication fields indicate the uplink channel resources required by the DCI for scheduling the first report transmission. The method as described in claim 3, wherein the one or more indication fields include a CSI request field, the bit values in the CSI request field are the same as the bit values carried in the request message, and the request message is used by the terminal device to request uplink channel resources required for the first report transmission from the network device. The method as described in claim 2, wherein the one or more indication fields include a CSI request field, and the information carried by the one or more indication fields includes: a trigger state carried by the CSI request field, the trigger state being used to indicate one or more report configuration identifiers, each of the one or more report configuration identifiers being used to identify configuration information of a first report. The method as described in claim 2, wherein the one or more indication fields include a CSI request field, and the information carried by the one or more indication fields includes: a plurality of trigger states carried by the CSI request field, each of the plurality of trigger states being used to indicate a report configuration identifier, and the report configuration identifier being used to identify configuration information of a first report. The method according to any one of claims 1-6, wherein sending the first report comprises: The first report is sent in the first cell; Wherein, the first cell is the cell in which the first report is configured; or, the first cell is the cell indicated by the configuration information of the first report for sending the first report; or, the first cell is a cell for transmitting reference signal resource configuration information, the reference signal resource configuration information being the reference signal resource configuration information indicated by the configuration information of the first report; or, the first cell is the cell where reference signal resources are located, the reference signal resources being indicated by the configuration information of the first report and used to measure the signal quality of the current beam and/or the signal quality of candidate beams in the first cell; or, the first cell is the cell where the uplink channel resources scheduled by the DCI are located; or, the first cell is the cell where the measurement result satisfies the measurement event, the measurement result including the signal quality measurement result of the current beam and/or the signal quality measurement result of the candidate beam, the measurement event including a first condition and/or a second condition, the first condition being used to determine the signal quality of the current beam, and the second condition being used to determine the signal quality of the candidate beam. The method as described in claim 7, wherein the first cell is a cell used for transmitting reference signal resource configuration information, and the reference signal resource configuration information is the reference signal resource configuration information indicated by the configuration information reported by the first report, including: If the configuration information in the first report indicates the reference signal resource configuration information transmitted in each of the multiple cells, the first cell is the cell with the largest cell index value or the cell with the smallest cell index value among the multiple cells. The method as described in claim 7, wherein the first cell is the cell where the reference signal resource is located, and the reference signal resource is indicated by the configuration information in the first report and is used to measure the signal quality of the current beam and/or the signal quality of the candidate beam in the first cell, including: If the configuration information in the first report indicates a reference signal resource for measuring the signal quality of the current beam and/or the signal quality of the candidate beam in each of the multiple cells, the first cell is the cell with the largest cell index value or the cell with the smallest cell index value among the multiple cells. The method as described in claim 7, wherein the first cell is the cell where the uplink channel resources scheduled by the DCI are located, includes: If the DCI schedules uplink channel resources for each of the multiple cells, the first cell is either the cell with the largest cell index value or the cell with the smallest cell index value among the multiple cells. The method as described in claim 7, wherein the first cell is a cell whose measurement result satisfies the measurement event, includes: If the cells that meet the measurement event include multiple cells, the first cell is either the cell with the largest cell index value or the cell with the smallest cell index value among the multiple cells. A communication method, characterized in that it includes: Send downlink control information (DCI), wherein information carried in one or more indication fields in the DCI and/or radio network temporary identifier (RNTI) scrambled on the DCI indicate that the DCI is used to schedule the transmission of a first report, wherein the first report is a channel state information (CSI) report triggered by a beam management process or cell handover process by a terminal device. Receive the first report. The method as described in claim 12, wherein the one or more indication fields include at least one of the following: Hybrid Automatic Repeat Request (HARQ) process number field, Redundancy Version (RV) field, Modulation and Coding Strategy (MCS) field, New Data Indicator (NDI) field, CSI Request field, Frequency Domain Resource Allocation (FDRA) field, and Uplink Shared Channel Indicator field. The method as described in claim 12 or 13, wherein the information carried by the one or more indication fields includes: bit values in the one or more indication fields, the bit values in the one or more indication fields indicating the uplink channel resources required by the DCI for scheduling the first report transmission. The method as described in claim 14, wherein the one or more indication fields include a CSI request field, the bit values in the CSI request field are the same as the bit values carried in the request message, and the request message is used by the terminal device to request uplink channel resources required for the first report transmission from the network device. The method of claim 13, wherein the one or more indication fields include a CSI request field, the information carried by the one or more indication fields includes a trigger state carried by the CSI request field, the trigger state being used to indicate one or more report configuration identifiers, each of the one or more report configuration identifiers being used to identify configuration information of a first report. The method of claim 13, wherein the one or more indication fields include a CSI request field, the information carried by the one or more indication fields includes a plurality of trigger states carried by the CSI request field, each of the plurality of trigger states being used to indicate a report configuration identifier, the report configuration identifier being used to identify configuration information of a first report. The method as described in any one of claims 12-17, wherein receiving the first report comprises: The first report is received in the first cell; Wherein, the first cell is the cell in which the first report is configured; or, the first cell is the cell indicated by the configuration information of the first report for sending the first report; or, the first cell is a cell for transmitting reference signal resource configuration information, the reference signal resource configuration information being the reference signal resource configuration information indicated by the configuration information of the first report; or, the first cell is the cell where reference signal resources are located, the reference signal resources being indicated by the configuration information of the first report and used to measure the signal quality of the current beam and/or the signal quality of candidate beams in the first cell; or, the first cell is the cell where the uplink channel resources scheduled by the DCI are located; or, the first cell is the cell where the measurement result satisfies the measurement event, the measurement result including the signal quality measurement result of the current beam and/or the signal quality measurement result of the candidate beam, the measurement event including a first condition and/or a second condition, the first condition being used to determine the signal quality of the current beam, and the second condition being used to determine the signal quality of the candidate beam. The method as described in claim 18, wherein the first cell is a cell used for transmitting reference signal resource configuration information, and the reference signal resource configuration information is the reference signal resource configuration information indicated by the configuration information reported by the first report, including: If the configuration information in the first report indicates the reference signal resource configuration information transmitted in each of the multiple cells, the first cell is the cell with the largest cell index value or the cell with the smallest cell index value among the multiple cells. The method as described in claim 18, wherein the first cell is the cell where the reference signal resource is located, the reference signal resource being indicated by the configuration information in the first report and used to measure the signal quality of the current beam and/or the signal quality of the candidate beam in the first cell, including: If the configuration information in the first report indicates a reference signal resource for measuring the signal quality of the current beam and/or the signal quality of the candidate beam in each of the multiple cells, the first cell is the cell with the largest cell index value or the cell with the smallest cell index value among the multiple cells. The method as described in claim 18, wherein the first cell is the cell where the uplink channel resources scheduled by the DCI are located, includes: If the DCI schedules uplink channel resources for each of the multiple cells, the first cell is either the cell with the largest cell index value or the cell with the smallest cell index value among the multiple cells. The method as described in claim 18, wherein the first cell is a cell whose measurement result satisfies the measurement event, includes: If the cells that meet the measurement event include multiple cells, the first cell is either the cell with the largest cell index value or the cell with the smallest cell index value among the multiple cells. A communication device, characterized in that it comprises: A receiving unit is configured to receive downlink control information (DCI), wherein information carried in one or more indication fields and/or radio network temporary identifier (RNTI) scrambled on the DCI indicates that the DCI is used to schedule the transmission of a first report, wherein the first report is a channel state information (CSI) report during a beam management process or cell handover process triggered by the communication device. A sending unit is configured to send the first report according to the DCI. A communication device, wherein the communication device is a first communication device, characterized in that it comprises: A transmitting unit is used to transmit downlink control information (DCI), wherein information carried in one or more indication fields in the DCI and/or radio network temporary identifier (RNTI) scrambled on the DCI indicate that the DCI is used to schedule the transmission of a first report, wherein the first report is a channel state information (CSI) report during a beam management process or cell handover process triggered by a second communication device. A receiving unit is used to receive the first report. A communication device, characterized in that the communication device includes a processor and a memory, the processor and the memory being interconnected, wherein the memory is used to store a computer program, the computer program including program instructions, and the processor invokes the program instructions to execute the method as described in any one of claims 1 to 11, or to execute the method as described in any one of claims 12 to 22. A chip, characterized in that the chip includes a processor and an interface, the processor and the interface being coupled; the interface is used to receive or output signals, and the processor is used to execute code instructions to perform the method as described in any one of claims 1 to 11, or to perform the method as described in any one of claims 12 to 22. A module device, characterized in that the module device includes a communication module, a power module, a storage module, and a chip module, wherein: The power module is used to provide electrical energy to the module device; The storage module is used to store data and/or instructions; The communication module is used to communicate with external devices; The chip module is used to call the data and/or instructions stored in the storage module, and in conjunction with the communication module, to execute the method as described in any one of claims 1 to 11, or to execute the method as described in any one of claims 12 to 22. A computer-readable storage medium, characterized in that the computer-readable storage medium stores a computer program, the computer program including program instructions, which, when executed by a computer, implement the method as claimed in any one of claims 1 to 11, or implement the method as claimed in any one of claims 12 to 22.