WO2025213473A1 - Communication method, terminal, network device, communication system and storage medium - Google Patents

Abstract

Embodiments of the present disclosure relate to a communication method, a terminal, a network device, a communication system, and a storage medium, the communication method being executable by the terminal. The method comprises: on the basis of a measurement result of a first transmission beam, predicting a measurement result of a plurality of second transmission beams, the first transmission beam being at least one of the plurality of second transmission beams; and on the basis of the measurement result of the plurality of second transmission beams, transmitting first information, the first information being used for indicating a third transmission beam among the plurality of second transmission beams. The terminal of the present disclosure can predict a measurement result of a plurality of second transmission beams on the basis of a measurement result of a first transmission beam, thereby reducing the overhead for measurement of terminals.

Description

Communication method, terminal, network device, communication system and storage medium Technical Field

The present disclosure relates to the field of communication technologies, and in particular to a communication method, a terminal, a network device, a communication system, and a storage medium.

Background Art

In the New Radio (NR) beam management scenario, the terminal can measure the transmit beam to determine the optimal transmit beam and report the optimal transmit beam to the network device. The network device can transmit information to the terminal based on the optimal transmit beam.

Summary of the Invention

In the beam management process, beam reporting and transmission configuration indicator (TCI) status activation delay are performed based on a non-predictive method. When a prediction-based method is applied, how to delay beam reporting and TCI status activation is an urgent problem to be solved.

The embodiments of the present disclosure provide a communication method, a terminal, a network device, a communication system, and a storage medium.

According to a first aspect of an embodiment of the present disclosure, a communication method is proposed, which is executed by a terminal, and the method includes: predicting measurement results of multiple second transmission beams based on the measurement results of a first transmission beam, wherein the first transmission beam is at least one of the multiple second transmission beams; and sending first information based on the measurement results of the multiple second transmission beams, wherein the first information is used to indicate a third transmission beam among the multiple second transmission beams.

According to the second aspect of an embodiment of the present disclosure, a communication method is proposed, which is executed by a network device, and the method includes: receiving first information, where the first information is sent by a terminal based on the measurement results of multiple second transmission beams, and the first information is used to indicate a third transmission beam among the multiple second transmission beams; the measurement results of the multiple second transmission beams are predicted based on the measurement results of the first transmission beam, and the first transmission beam is at least one of the multiple second transmission beams.

According to the third aspect of an embodiment of the present disclosure, a terminal is proposed, including: a transceiver module, configured to predict measurement results of multiple second transmission beams based on the measurement results of a first transmission beam, wherein the first transmission beam is at least one of the multiple second transmission beams; and send first information based on the measurement results of the multiple second transmission beams, wherein the first information is used to indicate a third transmission beam among the multiple second transmission beams.

According to the fourth aspect of an embodiment of the present disclosure, a network device is proposed, including: a transceiver module, configured to receive first information, the first information being sent by a terminal based on measurement results of multiple second transmission beams, and the first information being used to indicate a third transmission beam among the multiple second transmission beams; the measurement results of the multiple second transmission beams are predicted based on the measurement results of the first transmission beam, and the first transmission beam is at least one of the multiple second transmission beams.

According to a fifth aspect of an embodiment of the present disclosure, a terminal is proposed, comprising: one or more processors; wherein the terminal is configured to execute the communication method of the first aspect.

According to a sixth aspect of an embodiment of the present disclosure, a network device is proposed, comprising: one or more processors; wherein the network device is used to execute the communication method as in the second aspect.

According to the seventh aspect of an embodiment of the present disclosure, a communication method is proposed, which is executed by a communication system, the communication system including a terminal and a network device, the communication method including: the terminal predicts the measurement results of multiple second transmission beams based on the measurement results of the first transmission beam, wherein the first transmission beam is at least one of the multiple second transmission beams; the terminal sends first information based on the measurement results of the multiple second transmission beams, the first information being used to indicate a third transmission beam among the multiple second transmission beams; and the network device receives the first information.

According to an eighth aspect of an embodiment of the present disclosure, a communication system is proposed, including a network device and a terminal, wherein the communication system is configured to implement the communication method as in the seventh aspect.

According to the ninth aspect of the embodiment of the present disclosure, a storage medium is proposed, which stores instructions. When the instructions are executed on a network device or terminal, the network device or terminal executes the communication method of the first aspect or the second aspect.

According to a tenth aspect of the embodiments of the present disclosure, a computer program product is proposed, including a computer program, which implements the communication method described in the first aspect or the second aspect when the computer program is executed by a processor.

According to an eleventh aspect of the embodiments of the present disclosure, a computer program is proposed, which includes codes, and when the codes are executed by a processor, they implement the communication method described in the first aspect or the second aspect.

According to a twelfth aspect of the embodiments of the present disclosure, a chip or a chip system is provided. The chip or chip system includes a processing circuit. The processing circuit is configured to execute the communication method as described in the first aspect or the second aspect.

According to the technical solution provided by the embodiments of the present disclosure, the terminal can predict the measurement results of multiple second transmission beams based on the measurement results of the first transmission beam, thereby reducing the measurement overhead of the terminal.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following drawings required for describing the embodiments are introduced. The following drawings are merely some embodiments of the present disclosure and do not impose specific limitations on the protection scope of the present disclosure.

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

FIG2A is one of exemplary interaction diagrams illustrating a communication method according to an embodiment of the present disclosure;

FIG2B is a second exemplary interaction diagram of a communication method according to an embodiment of the present disclosure;

FIG2C is a third exemplary interaction diagram of a communication method according to an embodiment of the present disclosure;

FIG2D is a fourth exemplary interaction diagram of a communication method according to an embodiment of the present disclosure;

FIG3A is a schematic diagram showing a flow chart of a communication method executed by a terminal side according to an embodiment of the present disclosure;

FIG3B is a second flow chart of a method for executing communication on a terminal side according to an embodiment of the present disclosure;

FIG3C is a flowchart illustrating a method for executing communication on a network device side according to an embodiment of the present disclosure;

FIG3D is a second flow chart of a communication method executed by a network device side according to an embodiment of the present disclosure;

FIG4A is a third flow chart of a method for executing communication on a terminal side according to an embodiment of the present disclosure;

FIG4B is a third flow chart of a communication method executed on a network side according to an embodiment of the present disclosure;

FIG5 is a schematic structural diagram of a communication device proposed in an embodiment of the present disclosure;

FIG6 is a schematic structural diagram of a communication device proposed in an embodiment of the present disclosure;

FIG7 is a schematic diagram of a structure of a chip proposed in an embodiment of the present disclosure.

DETAILED DESCRIPTION

The embodiments of the present disclosure provide a communication method, a terminal, a network device, a communication system, and a storage medium.

In a first aspect, an embodiment of the present disclosure proposes a communication method, which is executed by a terminal, and the method includes: predicting measurement results of multiple second transmission beams based on the measurement results of a first transmission beam, wherein the first transmission beam is at least one of the multiple second transmission beams; and sending first information based on the measurement results of the multiple second transmission beams, the first information being used to indicate a third transmission beam among the multiple second transmission beams.

In the embodiment of the present disclosure, the terminal predicts the measurement results of multiple second transmission beams based on the measurement result of at least one transmission beam among the multiple second transmission beams, thereby reducing the measurement overhead of the terminal and shortening the measurement time.

In combination with some embodiments of the first aspect, in some embodiments, the third transmission beam is a beam corresponding to the first n measurement results in descending order of measurement results among the multiple second transmission beams, where n is a positive integer.

In an embodiment of the present disclosure, the terminal reports the third transmitting beam to the network device. The third transmitting beam is the n beams corresponding to the first n measurement results after the measurement results are arranged from large to small. In this way, the network device can select at least one of the n beams for activation and information transmission, thereby improving the flexibility of beam management.

In combination with some embodiments of the first aspect, in some embodiments, the method further includes: performing a receive beam scan on the first transmit beam to obtain a measurement result of the first transmit beam.

In combination with some embodiments of the first aspect, in some embodiments, the measurement result satisfies one or more of the following: the measurement result includes a measurement result of layer 1 measurement, and the measurement result includes reference signal received power.

In combination with some embodiments of the first aspect, in some embodiments, the third transmission beam is at least one of the first transmission beams; or, the third transmission beam is at least one of the fourth transmission beams, and the fourth transmission beam is a beam among the multiple second transmission beams other than the first transmission beam.

In the disclosed embodiment, when the third transmit beam belongs to the first transmit beam, the third transmit beam is determined by measurement. When the third transmit beam belongs to a fourth transmit beam other than the first transmit beam among multiple second transmit beams, the third transmit beam is determined by prediction. This improves the flexibility of determining the third beam and reduces the measurement overhead of the terminal.

In some embodiments combined with the first aspect, in some embodiments, the third transmit beam is the first transmit beam, and the first receive beam associated with the third transmit beam is known; or, the third transmit beam is the fourth transmit beam, and the first receive beam associated with the third transmit beam is known or unknown.

In combination with some embodiments of the first aspect, in some embodiments, the method further includes: sending second information, where the second information is used to indicate whether the terminal is aware of the first receiving beam associated with the third transmitting beam.

In an embodiment of the present disclosure, the terminal may also report to the network device whether the first receiving beam associated with the third transmitting beam is known. Based on this, the network device may determine whether to send a reference signal during the activation of the TCI state so that the terminal performs measurement of the first receiving beam.

In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:

Send third information, where the third information is used to indicate the terminal's prediction capability for the first receiving beam associated with the third transmitting beam, and the terminal's prediction capability for the first receiving beam associated with the third transmitting beam is used by the network device to determine whether the terminal is aware of the first receiving beam.

In an embodiment of the present disclosure, the terminal may also report its own prediction capability of the first receiving beam to the network device. Based on the terminal's prediction capability of the first receiving beam, the network device may determine whether the terminal is already aware of the first receiving beam. Based on this, the network device may determine whether to send a reference signal during the activation of the TCI state so that the terminal can perform measurement of the first receiving beam.

In combination with some embodiments of the first aspect, in some embodiments, the terminal's prediction capability for the first receiving beam associated with the third transmitting beam includes one of the following: the terminal supports predicting multiple receiving beams; the terminal supports predicting some of the multiple receiving beams.

In an embodiment of the present disclosure, when the terminal supports predicting multiple receiving beams, the terminal knows the first receiving beam associated with the third transmitting beam; when the terminal supports predicting some of the receiving beams in the multiple receiving beams, the terminal is unaware of the first receiving beam associated with the third transmitting beam.

In combination with some embodiments of the first aspect, in some embodiments, after sending the first information based on the measurement results of multiple second transmit beams, the method also includes at least one of the following: not performing receive beam scanning in the time unit in which the first transmission configuration indicating the TCI state is activated; performing receive beam scanning in the time unit in which the first TCI state is activated; when the first receive beam associated with the third transmit beam is known, not performing receive beam scanning in the time unit in which the first transmission configuration indicating the TCI state is activated; when the first receive beam associated with the third transmit beam is unknown, performing receive beam scanning in the time unit in which the first TCI state is activated; wherein the first TCI state is associated with the third transmit beam.

In an embodiment of the present disclosure, the terminal may not perform receive beam scanning during the time unit in which the first transmission configuration indication TCI state is activated, or may not perform receive beam scanning when the first receive beam is known. In other words, the time unit in which the first TCI state is activated does not need to be delayed. The terminal may also perform receive beam scanning during the time unit in which the first TCI state is activated, or may perform receive beam scanning during the time unit in which the first TCI state is activated when the first receive beam is unknown. In other words, the time unit in which the first TCI state is activated is delayed, i.e., the duration for performing receive beam scanning is added.

In combination with some embodiments of the first aspect, in some embodiments, the time unit for activating the first TCI state includes a first duration, and the first duration is the duration for performing receive beam scanning.

In combination with some embodiments of the first aspect, in some embodiments, the first receiving beam is known to include at least one of the following situations: the third transmitting beam has been measured; the third transmitting beam has been predicted, and the terminal supports predicting multiple receiving beams; the third transmitting beam has been predicted, and the terminal indicates that the first receiving beam associated with the third transmitting beam is known.

In combination with some embodiments of the first aspect, in some embodiments, the first receiving beam is known to include at least one of the following situations: the third transmitting beam is at least one of the first transmitting beams; the third transmitting beam is at least one of the fourth transmitting beams, and the terminal supports prediction of multiple receiving beams; the third transmitting beam is at least one of the fourth transmitting beams, and the terminal indicates the first receiving beam associated with the known third transmitting beam; the fourth transmitting beam is a beam among multiple second transmitting beams other than the first transmitting beam.

In combination with some embodiments of the first aspect, in some embodiments, the first receiving beam is unknown, including at least one of the following situations: the third transmitting beam has been predicted, and the terminal supports predicting some beams among multiple receiving beams; the third transmitting beam has been predicted, and the terminal indicates the first receiving beam associated with the unknown third transmitting beam.

In combination with some embodiments of the first aspect, in some embodiments, the first receiving beam is unknown, including at least one of the following situations: the third transmitting beam is at least one of the fourth transmitting beams, and the terminal supports predicting some beams in multiple receiving beams; the third transmitting beam is at least one of the fourth transmitting beams, and the terminal indicates that the first receiving beam associated with the third transmitting beam is unknown; the fourth transmitting beam is a beam among multiple second transmitting beams other than the first transmitting beam.

In second aspect, an embodiment of the present disclosure proposes a communication method, which is executed by a network device, and the method includes: receiving first information, the first information is sent by the terminal based on the measurement results of multiple second transmission beams, and the first information is used to indicate a third transmission beam among the multiple second transmission beams; the measurement results of the multiple second transmission beams are predicted based on the measurement results of the first transmission beam, and the first transmission beam is at least one of the multiple second transmission beams.

In combination with some embodiments of the second aspect, in some embodiments, the third transmission beam is a beam corresponding to the first n measurement results in descending order among the multiple second transmission beams, where n is a positive integer.

In combination with some embodiments of the second aspect, in some embodiments, the measurement result of the first transmit beam is obtained by performing receive beam scanning on the first transmit beam.

In combination with some embodiments of the second aspect, in some embodiments, the measurement result satisfies one or more of the following: the measurement result includes a measurement result of layer 1 measurement, and the measurement result includes reference signal received power.

In combination with some embodiments of the second aspect, in some embodiments, the third transmission beam is at least one of the first transmission beams; or, the third transmission beam is at least one of the fourth transmission beams, and the fourth transmission beam is a beam among multiple second transmission beams other than the first transmission beam.

In combination with some embodiments of the second aspect, in some embodiments, the third transmit beam is at least one of the first transmit beams, and the first receive beam associated with the third transmit beam is known; or, the third transmit beam is at least one of the fourth transmit beams, and the first receive beam associated with the third transmit beam is known or unknown.

In combination with some embodiments of the second aspect, in some embodiments, the method further includes: receiving second information, where the second information is used to indicate whether the terminal is aware of the first receiving beam associated with the third transmitting beam.

In combination with some embodiments of the second aspect, in some embodiments, the method also includes: receiving third information, the third information is used to indicate the terminal's prediction ability for the first receiving beam associated with the third transmitting beam, and the terminal's prediction ability for the first receiving beam associated with the third transmitting beam is used by the network device to determine whether the terminal is aware of the first receiving beam.

The terminal's prediction capability for the first receiving beam associated with the third transmitting beam includes one of the following: the terminal supports predicting multiple receiving beams; the terminal supports predicting some receiving beams among the multiple receiving beams.

In combination with some embodiments of the second aspect, in some embodiments, the method also includes at least one of the following: not sending a reference signal; sending a reference signal; not sending a reference signal when the first receiving beam associated with the third transmitting beam is known; sending a reference signal when the first receiving beam associated with the third transmitting beam is unknown; wherein the reference signal is used for the terminal to perform receiving beam scanning on the time unit that activates the first transmission configuration indication TCI state.

In combination with some embodiments of the second aspect, in some embodiments, the time unit for activating the first TCI state includes a first duration, and the first duration is the duration for performing receive beam scanning.

In combination with some embodiments of the second aspect, in some embodiments, the first receiving beam is known to include at least one of the following situations: the third transmitting beam has been measured; the third transmitting beam has been predicted, and the terminal supports predicting multiple receiving beams; the third transmitting beam has been predicted, and the terminal indicates the first receiving beam associated with the known third transmitting beam.

In combination with some embodiments of the second aspect, in some embodiments, the first receiving beam is known to include at least one of the following situations: the third transmitting beam is at least one of the first transmitting beams; the third transmitting beam is at least one of the fourth transmitting beams, and the terminal supports the use of multiple receiving beams to perform receiving beam scanning; the third transmitting beam is at least one of the fourth transmitting beams, and the terminal indicates the first receiving beam associated with the known third transmitting beam; the fourth transmitting beam is a beam among multiple second transmitting beams other than the first transmitting beam.

In combination with some embodiments of the second aspect, in some embodiments, the first receiving beam is unknown, including at least one of the following situations: the third transmitting beam has been predicted, and the terminal supports predicting some beams among multiple receiving beams; the third transmitting beam has been predicted, and the terminal indicates the first receiving beam associated with the unknown third transmitting beam.

In combination with some embodiments of the second aspect, in some embodiments, the first receiving beam is unknown, including at least one of the following situations: the third transmitting beam is at least one of the fourth transmitting beams, and the terminal supports predicting some beams in multiple receiving beams; the third transmitting beam is at least one of the fourth transmitting beams, and the terminal indicates the first receiving beam associated with the unknown third transmitting beam; the fourth transmitting beam is a beam among multiple second transmitting beams other than the first transmitting beam.

In a third aspect, an embodiment of the present disclosure proposes a terminal, comprising: a transceiver module, configured to predict the measurement results of multiple second transmission beams based on the measurement results of the first transmission beam, wherein the first transmission beam is at least one of the multiple second transmission beams; and send first information based on the measurement results of the multiple second transmission beams, the first information being used to indicate a third transmission beam among the multiple second transmission beams.

In combination with some embodiments of the third aspect, in some embodiments, the third transmission beam is a beam corresponding to the first n measurement results in descending order among the multiple second transmission beams, where n is a positive integer.

In combination with some embodiments of the third aspect, in some embodiments, the transceiver module is configured to perform a receive beam scan on the first transmit beam to obtain a measurement result of the first transmit beam.

In combination with some embodiments of the third aspect, in some embodiments, the measurement result satisfies one or more of the following: the measurement result includes a measurement result of layer 1 measurement, and the measurement result includes reference signal received power.

In combination with some embodiments of the third aspect, in some embodiments, the third transmission beam is at least one of the first transmission beams; or, the third transmission beam is at least one of the fourth transmission beams, and the fourth transmission beam is a beam among multiple second transmission beams other than the first transmission beam.

In combination with some embodiments of the third aspect, in some embodiments, the third transmit beam is at least one of the first transmit beams, and the first receive beam associated with the third transmit beam is known; or, the third transmit beam is at least one of the fourth transmit beams, and the first receive beam associated with the third transmit beam is known or unknown.

In combination with some embodiments of the third aspect, in some embodiments, the transceiver module is configured to send second information, where the second information is used to indicate whether the terminal is aware of the first receive beam associated with the third transmit beam.

In combination with some embodiments of the third aspect, in some embodiments, the transceiver module is configured to send third information, wherein the third information is used to indicate the terminal's prediction capability of the first receiving beam associated with the third transmitting beam, and the terminal's prediction capability of the first receiving beam associated with the third transmitting beam is used by the network device to determine whether the terminal is aware of the first receiving beam.

In combination with some embodiments of the third aspect, in some embodiments, the terminal's prediction capability for the first receiving beam associated with the third transmitting beam includes one of the following: the terminal supports predicting multiple receiving beams; the terminal supports predicting some of the multiple receiving beams.

In combination with some embodiments of the third aspect, in some embodiments, the transceiver module is configured to do at least one of the following: not perform receive beam scanning in the time unit in which the first transmission configuration indication TCI state is activated; perform receive beam scanning in the time unit in which the first TCI state is activated; do not perform receive beam scanning in the time unit in which the first TCI state is activated when the first receive beam associated with the third transmit beam is known; perform receive beam scanning in the time unit in which the first TCI state is activated when the first receive beam associated with the third transmit beam is unknown; wherein the first TCI state is associated with the third transmit beam.

In combination with some embodiments of the third aspect, in some embodiments, the time unit for activating the first TCI state includes a first duration, and the first duration is the duration for performing receive beam scanning.

In combination with some embodiments of the third aspect, in some embodiments, the first receiving beam is known to include at least one of the following situations: the third transmitting beam has been measured; the third transmitting beam has been predicted, and the terminal supports the use of predicted multiple receiving beams; the third transmitting beam has been predicted, and the terminal indicates the first receiving beam associated with the known third transmitting beam.

In combination with some embodiments of the third aspect, in some embodiments, the first receiving beam is known to include at least one of the following situations: the third transmitting beam is at least one of the first transmitting beams; the third transmitting beam is at least one of the fourth transmitting beams, and the terminal supports prediction of multiple receiving beams; the third transmitting beam is at least one of the fourth transmitting beams, and the terminal indicates that the first receiving beam associated with the third transmitting beam is known; wherein the fourth transmitting beam is a beam among multiple second transmitting beams other than the first transmitting beam.

In combination with some embodiments of the third aspect, in some embodiments, the first receiving beam is unknown, including at least one of the following situations: the third transmitting beam has been predicted, and the terminal supports predicting some receiving beams among multiple receiving beams; the third transmitting beam has been predicted, and the terminal indicates the first receiving beam associated with the unknown third transmitting beam.

In combination with some embodiments of the third aspect, in some embodiments, the first receiving beam is unknown, including at least one of the following situations: the third transmitting beam is at least one of the fourth transmitting beams, and the terminal supports predicting some receiving beams in multiple receiving beams; the third transmitting beam is at least one of the fourth transmitting beams, and the terminal indicates that the first receiving beam associated with the third transmitting beam is unknown; wherein, the fourth transmitting beam is a beam among multiple second transmitting beams other than the first transmitting beam.

In fourth aspect, an embodiment of the present disclosure proposes a network device, including: a transceiver module, configured to receive first information, the first information is sent by the terminal based on the measurement results of multiple second transmission beams, and the first information is used to indicate a third transmission beam among the multiple second transmission beams; the measurement results of the multiple second transmission beams are predicted based on the measurement results of the first transmission beam, and the first transmission beam is at least one of the multiple second transmission beams.

In combination with some embodiments of the fourth aspect, in some embodiments, the third transmission beam is a beam corresponding to the first n measurement results in descending order among the multiple second transmission beams, where n is a positive integer.

In combination with some embodiments of the fourth aspect, in some embodiments, the measurement result of the first transmit beam is obtained by performing receive beam scanning on the first transmit beam.

In combination with some embodiments of the fourth aspect, in some embodiments, the measurement result satisfies one or more of the following: the measurement result includes a measurement result of layer 1 measurement, and the measurement result includes reference signal received power.

In combination with some embodiments of the fourth aspect, in some embodiments, the third transmission beam is at least one of the first transmission beams; or, the third transmission beam is at least one of the fourth transmission beams, and the fourth transmission beam is a beam among multiple second transmission beams other than the first transmission beam.

In combination with some embodiments of the fourth aspect, in some embodiments, the third transmit beam is at least one of the first transmit beams, and the first receive beam associated with the third transmit beam is known; or, the third transmit beam is at least one of the fourth transmit beams, and the first receive beam associated with the third transmit beam is known or unknown.

In combination with some embodiments of the fourth aspect, in some embodiments, the transceiver module is configured to receive second information, where the second information is used to indicate whether the terminal is aware of the first receive beam associated with the third transmit beam.

In combination with some embodiments of the fourth aspect, in some embodiments, the transceiver module is configured to receive third information, and the third information is used to indicate the terminal's prediction capability of the first receiving beam associated with the third transmitting beam, and the terminal's prediction capability of the first receiving beam associated with the third transmitting beam is used by the network device to determine whether the terminal is aware of the first receiving beam.

In combination with some embodiments of the fourth aspect, in some embodiments, the terminal's ability to scan reception beams includes one of the following: the terminal supports prediction of multiple reception beams; the terminal supports prediction of some reception beams among multiple reception beams.

In combination with some embodiments of the fourth aspect, in some embodiments, the transceiver module is configured to at least one of the following: not sending a reference signal; sending a reference signal; not sending a reference signal when the first receiving beam associated with the third transmitting beam is known; sending a reference signal when the first receiving beam associated with the third transmitting beam is unknown; wherein the reference signal is used for the terminal to perform receiving beam scanning on the time unit that activates the first transmission configuration indicating the TCI state.

In combination with some embodiments of the fourth aspect, in some embodiments, the time unit for activating the first TCI state includes a first duration, and the first duration is the duration for performing receive beam scanning.

In combination with some embodiments of the fourth aspect, in some embodiments, the first receiving beam is known to include at least one of the following situations: the third transmitting beam has been measured; the third transmitting beam has been predicted, and the terminal supports predicting multiple receiving beams; the third transmitting beam has been predicted, and the terminal indicates the first receiving beam associated with the known third transmitting beam.

In combination with some embodiments of the fourth aspect, in some embodiments, the first receiving beam is known to include at least one of the following situations: the third transmitting beam is at least one of the first transmitting beams; the third transmitting beam is at least one of the fourth transmitting beams, and the terminal supports prediction of multiple receiving beams; the third transmitting beam is at least one of the fourth transmitting beams, and the terminal indicates that the first receiving beam associated with the third transmitting beam is known; wherein the fourth transmitting beam is a beam among multiple second transmitting beams other than the first transmitting beam.

In combination with some embodiments of the fourth aspect, in some embodiments, the first receiving beam is unknown, including at least one of the following situations: the third transmitting beam has been predicted, and the terminal supports predicting some receiving beams among multiple receiving beams; the third transmitting beam has been predicted, and the terminal indicates the first receiving beam associated with the unknown third transmitting beam.

In combination with some embodiments of the fourth aspect, in some embodiments, the first receiving beam is unknown, including at least one of the following situations: the third transmitting beam is at least one of the fourth transmitting beams, and the terminal supports predicting some receiving beams in multiple receiving beams; the third transmitting beam is at least one of the fourth transmitting beams, and the terminal indicates the first receiving beam associated with the unknown third transmitting beam; wherein, the fourth transmitting beam is a beam among multiple second transmitting beams other than the first transmitting beam.

In a fifth aspect, an embodiment of the present disclosure proposes a terminal, comprising: one or more processors; wherein the terminal is used to execute the communication method of the first aspect.

In a sixth aspect, an embodiment of the present disclosure proposes a network device, comprising: one or more processors; wherein the access network device is used to execute the communication method of the second aspect.

In the seventh aspect, an embodiment of the present disclosure proposes a communication method, which is executed by a communication system, the communication system including a terminal and a network device, and the communication method includes: the terminal predicts the measurement results of multiple second transmission beams based on the measurement results of the first transmission beam, wherein the first transmission beam is at least one of the multiple second transmission beams; the terminal sends first information based on the measurement results of the multiple second transmission beams, and the first information is used to indicate a third transmission beam among the multiple second transmission beams; the network device receives the first information.

In an eighth aspect, an embodiment of the present disclosure proposes a communication system, comprising: a terminal and a network device; wherein the communication system is configured to execute the method described in the optional implementation manner of the seventh aspect.

In the ninth aspect, an embodiment of the present disclosure proposes a storage medium, which stores instructions. When the instructions are executed on a terminal or an access network device, the terminal or network device executes the method described in the optional implementation of the first or second aspect.

In a tenth aspect, an embodiment of the present disclosure proposes a program product. When the program product is executed by a terminal or an access network device, the terminal or the access network device executes the method described in the optional implementation manner of the first aspect or the second aspect.

In an eleventh aspect, an embodiment of the present disclosure proposes a computer program, which, when executed on a computer, enables the computer to execute the method described in the optional implementation of the first aspect or the second aspect.

In a twelfth aspect, an embodiment of the present disclosure provides a chip or a chip system, wherein the chip or chip system includes a processing circuit configured to execute the method described in the optional implementation of the first or second aspect.

It is understandable that the above-mentioned network devices, terminals, communication systems, storage media, program products, computer programs, chips, or chip systems are all used to perform the methods proposed in the embodiments of the present disclosure. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects of the corresponding methods and will not be repeated here.

The present disclosure provides a communication method, terminal, network device, communication system, and storage medium. In some embodiments, the terms "communication method" and "information transmission method," "information processing method," and "beam reporting method" are interchangeable, and the terms "information processing system" and "communication system" are interchangeable.

The embodiments of the present disclosure are not exhaustive and are merely illustrative of some embodiments, and are not intended to be a specific limitation on the scope of protection of the present disclosure. In the absence of contradiction, each step in a certain embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a certain embodiment can also be implemented as an independent embodiment, and the order of the steps in a certain embodiment can be arbitrarily exchanged. In addition, the optional implementation methods in a certain embodiment can be arbitrarily combined; in addition, the embodiments can be arbitrarily combined. For example, some or all steps of different embodiments can be arbitrarily combined, and a certain embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

In each embodiment of the present disclosure, unless otherwise specified or provided for by logic, the terms and/or descriptions between the embodiments are consistent and can be referenced by each other. The technical features in different embodiments can be combined to form a new embodiment based on their inherent logical relationships.

The terms used in the embodiments of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure.

In the embodiments of the present disclosure, unless otherwise specified, elements expressed in the singular, such as "a", "an", "the", "above", "the", "the", etc., may mean "one and only one", or "one or more", "at least one", etc. For example, when articles such as "a", "an", "the" in English are used in translation, the noun following the article may be understood as a singular expression or a plural expression.

In the embodiments of the present disclosure, “plurality” refers to two or more.

In some embodiments, the terms "at least one of", "one or more", "a plurality of", "multiple", etc. can be used interchangeably.

In some embodiments, descriptions such as "at least one of A and B," "A and/or B," "A in one case, B in another case," or "in response to one case A, in response to another case B" may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); and in some embodiments, A and B (both A and B are executed). The above is also applicable when there are more branches such as A, B, and C.

In some embodiments, "A or B" and other descriptions may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed). The above is also applicable when there are more branches such as A, B, C, etc.

The prefixes such as "first" and "second" in the embodiments of the present disclosure are only used to distinguish different description objects and do not constitute any restriction on the position, order, priority, quantity or content of the description objects. For the statement of the description object, please refer to the description in the context of the claims or embodiments, and no unnecessary restriction should be constituted due to the use of prefixes. For example, if the description object is a "field", the ordinal number before the "field" in the "first field" and the "second field" does not limit the position or order between the "fields". "First" and "second" do not limit whether the "fields" they modify are in the same message, nor do they limit the order of the "first field" and the "second field". For another example, if the description object is a "level", the ordinal number before the "level" in the "first level" and the "second level" does not limit the priority between the "levels". For another example, the number of description objects is not limited by the ordinal number and can be one or more. Taking "first device" as an example, the number of "devices" can be one or more. In addition, the objects modified by different prefixes can be the same or different. For example, if the description object is "device", then the "first device" and the "second device" can be the same device or different devices, and their types can be the same or different; for another example, if the description object is "information", then the "first information" and the "second information" can be the same information or different information, and their contents can be the same or different.

In some embodiments, “including A,” “comprising A,” “used to indicate A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

In some embodiments, terms such as "in response to...", "in response to determining...", "in the case of...", "at the time of...", "when...", "if...", "if...", etc. can be used interchangeably.

In some embodiments, terms such as "greater than", "greater than or equal to", "not less than", "more than", "more than or equal to", "not less than", "higher than", "higher than or equal to", "not less than", and "above" can be replaced with each other, and terms such as "less than", "less than or equal to", "not greater than", "less than", "less than or equal to", "not more than", "lower than", "lower than or equal to", "not higher than", and "below" can be replaced with each other.

In some embodiments, devices, etc. can be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. Terms such as "device", "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", and "subject" can be used interchangeably.

In some embodiments, "network" can be interpreted as devices included in the network (eg, access network equipment, core network equipment, etc.).

In some embodiments, “network devices”, “access network device (AN device)”, “radio access network device (RAN device)”, “base station (BS)”, “radio base station (radio base station)”, “fixed station (fixed station)”, “node (node)”, “access network node”, “access point (access point)”, “transmission point (TP)”, “reception point (RP)”, “transmission and/or The terms transmission/reception point (TRP),” “panel,” “antenna panel,” “antenna array,” “cell,” “macro cell,” “small cell,” “femtocell,” “picocell,” “sector,” “cell group,” “serving cell,” “carrier,” “component carrier,” and “bandwidth part (BWP)” are used interchangeably.

In some embodiments, the terms "terminal", "terminal device", "user equipment (UE)", "user terminal" "mobile station (MS)", "mobile terminal (MT)", subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, etc. can be used interchangeably.

In some embodiments, the access network device, the core network device, or the network device can be replaced by a terminal. For example, the various embodiments of the present disclosure can also be applied to a structure in which the communication between the access network device, the core network device, or the network device and the terminal is replaced by communication between multiple terminals (for example, device-to-device (D2D), vehicle-to-everything (V2X), etc.). In this case, it is also possible to set the structure in which the terminal has all or part of the functions of the access network device. In addition, terms such as "uplink" and "downlink" can also be replaced by terms corresponding to communication between terminals (for example, "side"). For example, uplink channels, downlink channels, etc. can be replaced by side channels, and uplinks, downlinks, etc. can be replaced by side links.

In some embodiments, the terminal may be replaced by an access network device, a core network device, or a network device. In this case, the access network device, the core network device, or the network device may have a structure that has all or part of the functions of the terminal.

In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

In some embodiments, data, information, etc. may be obtained with the user's consent.

In addition, each element, each row, or each column in the table of the embodiment of the present disclosure can be implemented as an independent embodiment, and the combination of any elements, any rows, and any columns can also be implemented as an independent embodiment.

[Corrected 24.04.2024 in accordance with Article 91]
FIG1 is a schematic diagram of an architecture of a communication system according to an embodiment of the present disclosure. As shown in FIG1 , a communication system 100 includes a terminal 101 and a network device 102 .

In some embodiments, the terminal 101 includes, for example, a mobile phone, a wearable device, an Internet of Things device, a car with communication function, a smart car, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, and at least one of a wireless terminal device in a smart home, but is not limited thereto.

In some embodiments, the terminal is also referred to as user equipment (UE).

In some embodiments, the network device 102 may include an access network device and/or a core network device. The access network device is, for example, a node or device that connects a terminal to a wireless network. The access network device may include at least one of an evolved NodeB (eNB), a next generation evolved NodeB (ng-eNB), a next generation NodeB (gNB), a NodeB (NB), a home NodeB (HNB), a home evolved NodeB (HeNB), a wireless backhaul device, a radio network controller (RNC), a base station controller (BSC), a base transceiver station (BTS), a baseband unit (BBU), a mobile switching center, a base station in a 6G communication system, an open RAN, a cloud RAN, a base station in other communication systems, and an access node in a Wi-Fi system, but is not limited thereto.

In some embodiments, the technical solutions of the embodiments of the present disclosure may be applicable to the open radio access network (Open RAN) architecture. In this case, the interfaces between or within the access network devices involved in the embodiments of the present disclosure may become internal interfaces of Open RAN, and the processes and information interactions between these internal interfaces may be implemented through software or programs.

In some embodiments, the access network device may be composed of a centralized unit (CU) and a distributed unit (DU), where the CU may also be called a control unit. The CU-DU structure may be used to split the protocol layers of the access network device, with some functions of the protocol layers centrally controlled by the CU, and the remaining functions of some or all of the protocol layers distributed in the DU, which is centrally controlled by the CU, but is not limited to this.

In some embodiments, the core network device may be a single device including a first network element, or may be multiple devices or a group of devices, each including a first network element. The network element may be virtual or physical. The core network may include, for example, at least one of an Evolved Packet Core (EPC), a 5G Core Network (5GCN), and a Next Generation Core (NGC).

It can be understood that the communication system described in the embodiment of the present disclosure is for the purpose of more clearly illustrating the technical solution of the embodiment of the present disclosure, and does not constitute a limitation on the technical solution provided by the embodiment of the present disclosure. Ordinary technicians in this field can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution provided by the embodiment of the present disclosure is also applicable to similar technical problems.

[Corrected 24.04.2024 in accordance with Article 91]
The following embodiments of the present disclosure may be applied to the communication system 100 shown in Figure 1, or a portion thereof, but are not limited thereto. The entities shown in Figure 1 are illustrative only. The communication system may include all or part of the entities shown in Figure 1, or may include other entities outside of Figure 1. The number and form of the entities may be arbitrary. The connection relationship between the entities is illustrative only. The entities may be connected or disconnected, and the connection may be in any manner, including direct or indirect, wired or wireless.

The embodiments of the present disclosure can be applied to long term evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, the fourth generation mobile communication system (4G), the fifth generation mobile communication system (5G), 5G new radio (NR), future radio access (FRA), new radio access technology (RAT), new radio (NR), new radio access (NX), future generation radio access (FRA), and other technologies. The following technologies are used for the communication of wireless networks: IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20 (UWB), Bluetooth, public land mobile network (PLMN), device-to-device (D2D), machine-to-machine (M2M), Internet of Things (IoT), vehicle-to-everything (V2X), systems using other communication methods, and next-generation systems based on these technologies. Furthermore, multiple systems may be combined (for example, a combination of LTE or LTE-A with 5G).

The following is an introduction to the beam management process involved in the embodiments of the present application.

Beam management is the process by which network devices and terminals acquire and maintain sets of beams for transmission and reception. In downlink transmission, the beam used by the network device is called the downlink transmit beam, and the beam used by the terminal is called the downlink receive beam. In uplink transmission, the beam used by the terminal is called the uplink transmit beam, and the beam used by the network device is called the uplink receive beam. The specific beams used by network devices and terminals for downlink and uplink transmissions are determined through the beam management process.

In some embodiments, the beam management process includes the following operations:

(1) Beam scanning: The process by which a network device or terminal selects beams for transmission or reception in a specified scanning manner within a time period to cover a spatial area.

(2) Beam measurement: The process by which a network device or terminal measures the received beamforming signal.

(3) Beam reporting: The process in which the terminal reports the beam measurement results to the network device.

(4) Beam selection: The process by which a network device or terminal selects its transmit or receive beam based on measurement results.

In some embodiments, beam management includes the following three states:

P1 state: The terminal measures the beam set sent by the network device and selects the transmit beam of the network device and the receive beam of the terminal.

P2 state: Based on the above P1, the terminal measures the narrower transmission beam set sent by the network device and improves the transmission beam of the network device.

P3 state: Based on P1, the terminal uses different receiving beams to measure the transmitting beams of the same network device to improve its own receiving beam.

In the beam management process, beam reporting and TCI status activation delay are performed based on measurement methods. When a prediction-based method is applied, how to delay beam reporting and TCI status activation is an urgent problem to be solved.

Therefore, in an embodiment of the present disclosure, the terminal selects at least one transmission beam (such as the first transmission beam) from the multiple transmission beams (such as the second transmission beam) to perform measurement, predicts the measurement results of the multiple second transmission beams based on the measurement results of the first transmission beam, and sends first information to the network device based on the measurement results of the multiple second transmission beams, where the first information is used to indicate the third transmission beam among the multiple second transmission beams.

In some embodiments, the plurality of second transmission beams constitute a beam set A, and the beam set A may be configured by a network device.

In some embodiments, at least one first transmit beam constitutes beam set B, which is a subset of beam set A.

In some embodiments, the third transmission beam is the beam corresponding to the first n measurement results of each transmission beam in the beam set A, from largest to smallest, where n is a positive integer. Therefore, the third transmission beam can be understood as the optimal transmission beam.

In some embodiments, the first receive beam associated with the best transmit beam can be understood as the best receive beam. If there is one best transmit beam, one best transmit beam is associated with one best receive beam. If there are multiple best transmit beams, multiple best transmit beams are associated with multiple best receive beams.

In some embodiments, the other transmission beams in beam set A except beam set B are the fourth transmission beam, the fourth transmission beam constitutes beam set C, and the union of beam set B and beam set C is beam set A.

In some embodiments, when there is only one optimal transmission beam, the first information is used to indicate the optimal transmission beam. In this case, there are two cases for the optimal transmission beam: Case 1: the optimal transmission beam is a transmission beam in beam set B. Case 2: the optimal transmission beam is a transmission beam in beam set C.

In some embodiments, when there are multiple optimal transmit beams, the first information is used to indicate the multiple optimal transmit beams. In this case, there are three cases for the optimal transmit beams. Case 1: All of the multiple optimal transmit beams are transmit beams in beam set B. Case 2: All of the multiple optimal transmit beams are transmit beams in beam set C. Case 3: Some of the multiple optimal transmit beams are transmit beams in beam set B, and some are transmit beams in beam set C.

In some embodiments, when the best transmitting beam is the transmitting beam in beam set B, since the terminal uses multiple receiving beams to perform spatial scanning on each transmitting beam in beam set B, that is, the best transmitting beam is determined by measurement, and therefore, the terminal knows the best receiving beam associated with the best transmitting beam.

In some embodiments, when the best transmitting beam is a transmitting beam in beam set C, since the terminal predicts the measurement results of beam set C, that is, the best transmitting beam is determined by prediction, the terminal may not know the best receiving beam associated with the best transmitting beam, or the terminal may know the best receiving beam associated with the best transmitting beam.

In some embodiments, when the best transmit beam is a transmit beam in beam set C, the terminal may determine whether the best receive beam associated with the best transmit beam is known based on its own capabilities or protocol agreement.

In some embodiments, when all the best transmit beams are transmit beams in beam set B, and the terminal knows all the best receive beams associated with the best transmit beams, the terminal does not perform receive beam scanning in the time unit when the first TCI state is activated.

In some embodiments, when at least one of the best transmit beams is a transmit beam in beam set C, the terminal may or may not know the best receive beam associated with the best transmit beam, then the terminal does not perform or performs receive beam scanning in the time unit when the first TCI state is activated.

FIG2A is one of exemplary interaction diagrams of a communication method according to an embodiment of the present disclosure. As shown in FIG2A , the present disclosure embodiment relates to a communication method. Executed by a communication system 100, the communication method includes steps S2101 to S2110.

In the embodiment of the present disclosure, at least one of the best transmission beams is a transmission beam in the beam set C.

In some embodiments, the best transmission beams are all transmission beams in beam set C.

In some embodiments, a portion of the optimal transmission beams are transmission beams in beam set B, and another portion are transmission beams in beam set C.

In step S2101, the terminal sends third information.

In some embodiments, the network device receives third information.

In some embodiments, the third information is used to indicate the terminal's ability to predict the best receiving beam associated with the best transmitting beam.

In some embodiments, the third information may be carried in a radio resource control (RRC) message. In one example, the third information may be carried in terminal capability information, such as RRC UE Capability Information.

In some embodiments, the network device can determine whether the terminal knows the best receiving beam based on the third information, so that the network device can determine whether to send a reference signal subsequently, whether the terminal will perform receiving beam scanning in the time unit of the activated TCI state, and whether the time unit of the activated TCI state is extended, so that the network device and the terminal reach a unified understanding of the activation duration.

In some embodiments, the terminal's ability to predict the best receiving beam associated with the best transmitting beam includes one of the following: the terminal supports predicting multiple receiving beams (recorded as capability one), and the terminal supports predicting some of the receiving beams in multiple receiving beams (recorded as capability two).

In some embodiments, when the terminal supports capability 1, the terminal knows the best receiving beam associated with the best transmit beam. When the terminal supports capability 2, the terminal does not know the best receiving beam associated with the best transmit beam.

In some embodiments, capability one can be understood as the terminal supporting prediction of all receive beams. Capability one can also be understood as the terminal supporting prediction of the best transmit beam and the best receive beam associated with the best transmit beam, where the best transmit beam is the transmit beam that produces the top n measurement results, ranked from largest to smallest, across all transmit beam and receive beam pairs. In one example, the best transmit beam is the transmit beam that produces the maximum Layer 1 reference signal received power across all transmit beam and receive beam pairs.

In some embodiments, capability 2 can be understood as the terminal supporting prediction of a specific receive beam. Capability 2 can also be understood as the terminal supporting prediction of the optimal transmit beam for a specific receive beam, where the optimal transmit beam is the transmit beam that produces the top n measurement results, ranked from highest to lowest, across all transmit beams with the specific receive beam. In one example, the third transmit beam is the transmit beam that produces the highest layer 1 reference signal received power across all transmit beams with the specific receive beam.

In some embodiments, the terminal's ability to predict the best receive beam associated with the best transmit beam is associated with a prediction model, which includes a first prediction model and a second prediction model.

In some embodiments, the first prediction model is associated with capability one. In this case, the first prediction model supports predicting all receive beams, or in other words, the first model supports predicting the best transmit beam and the best receive beam associated with the best transmit beam.

In some embodiments, the second prediction model is associated with capability 2. In this case, the second prediction model supports predicting a specific receive beam, or in other words, the second prediction model supports predicting an optimal transmit beam with a specific receive beam.

In some embodiments, the terminal supports capability one, which can be understood as the terminal supports the first prediction model, and the terminal supports capability two, which can be understood as the terminal supports the second prediction model.

In some embodiments, step S2101 may be performed at any time after step S2102.

In step S2102, the terminal performs measurement on each transmit beam in beam set B to obtain measurement result B.

In some embodiments, the terminal performs spatial scanning on each transmit beam in the beam set B using multiple receive beams to obtain a measurement result B.

In some embodiments, measurement result B is a measurement result of layer 1 (denoted as L1). In some embodiments, measurement result B includes one of the following: reference signal received quality (RSRQ), signal to interference plus noise ratio (SINR), and reference signal received power (RSRP).

In an example, the measurement result B includes the L1-RSRP of each transmit beam in the beam set B.

In step S2103, the terminal predicts the measurement result of each transmit beam in beam set A based on measurement result B to obtain measurement result A.

In some embodiments, the terminal inputs the measurement result B into the prediction model to obtain the measurement result A.

In some embodiments, the measurement result A is a measurement result of L1 measurement. In some embodiments, the measurement result A is RSRP.

In one example, measurement result A includes the L1-RSRP of each transmit beam in beam set A. In this way, the measurement result of beam set A is predicted by the measurement result of a subset of beam set A, saving measurement overhead and measurement time.

In some embodiments, the prediction model can be an artificial intelligence (AI) model/machine learning (ML) model.

In some embodiments, when the terminal supports capability 1, the terminal supports the first prediction model, and the terminal can input measurement result B into the first prediction model to obtain measurement result A. At this time, the first prediction model can also predict all receive beams.

In some embodiments, when the terminal supports capability 2, the terminal supports the second prediction model, and the terminal can input measurement result B into the second prediction model to obtain measurement result A. At this time, the first prediction model can also predict a specific receive beam.

In step S2104, the terminal determines first information based on the measurement result A.

In some embodiments, the first information is used to indicate the best transmission beam, and the best transmission beam is at least one of the beam set A.

In some embodiments, the terminal arranges the measurement results of each transmission beam in the measurement result A from largest to smallest, and selects the transmission beam corresponding to the first n measurement results as the optimal transmission beam.

In one example, the terminal arranges the L1-RSRP of each transmission beam in the measurement result A from large to small, and selects the transmission beams corresponding to the first 8 L1-RSRPs as the optimal transmission beams.

In one embodiment, the value of n may be determined based on a protocol agreement or a network instruction.

In one example, the protocol stipulates that n = 8. In one example, the protocol stipulates that n is the number of measurement results greater than a first threshold in the measurement results.

In step S2105, the terminal sends the first information.

In some embodiments, a network device receives first information.

In some embodiments, the first information may be an index of the best transmit beam.

In some embodiments, at least one of the best transmission beams indicated by the first information is a transmission beam in beam set C.

In step S2106, the terminal sends the second information.

In some embodiments, the network device receives the second information.

In some embodiments, the second information is used to indicate whether the terminal knows the best receiving beam associated with the best transmitting beam.

In some embodiments, when the terminal knows the best receiving beam associated with the best transmitting beam, the second information indicates that the terminal knows the best receiving beam.

In some embodiments, when the terminal supports capability one, the second information indicates the best receiving beam associated with the known best transmitting beam of the terminal.

In some embodiments, when the terminal does not know the best receiving beam associated with the best transmitting beam, the second information indicates that the terminal does not know the best receiving beam associated with the best transmitting beam.

In some embodiments, when the terminal supports capability 2, the second information indicates that the terminal does not know the best receiving beam associated with the best transmitting beam.

In some embodiments, the second information and the first information may be sent in the same message. For example, a terminal sends a measurement report that includes the first information and the second information. The second information and the first information may also be sent in different messages. The second information and the first information may also be carried in different messages and sent simultaneously, or may be carried in different messages and sent sequentially.

In some embodiments, the second information and the third information can be sent alternatively, that is, step S2101 and step S2106 can be executed alternatively.

In some embodiments, step S2106 and step S2107 may be executed in an interchangeable order.

In step S2107, the network device sends a first command.

In some embodiments, the terminal receives a first command.

In some embodiments, the first command is used to activate at least one first TCI state.

In some embodiments, the first command may be any command capable of activating the first TCI state. In one example, the first command may include, but is not limited to, a media access control-control element (MAC-CE).

In some embodiments, at least one first TCI state is associated with at least one transmit beam X.

In some embodiments, transmit beam X may be a beam in the optimal transmit beam, or may be another transmit beam other than the optimal transmit beam in beam set A. In other words, the network device may select an activated transmit beam X from the optimal transmit beam reported by the terminal, or may directly indicate the transmit beam X to be activated.

In some embodiments, if the transmit beam X is a beam in the optimal transmit beam, and at least one of the transmit beams X is a transmit beam in the beam set C, the following conditions exist:

In case one, the third information indicates that the terminal supports capability one, and the network device determines that the terminal already knows the receiving beam X associated with the transmitting beam X.

In case 2, the third information indicates that the terminal supports capability 2, and the network device determines that the terminal is unknown to the receiving beam X associated with the transmitting beam X.

Case three, the second information indicates that the terminal already knows the receiving beam X associated with the transmitting beam X, and the network device determines that the terminal already knows the receiving beam X.

Case 4: The second information indicates that the terminal is unknown to the receiving beam X associated with the transmitting beam X, and the network device determines that the terminal is unknown to the receiving beam X.

In some embodiments, if the transmit beam X is a beam among the best transmit beams, and all transmit beams X are transmit beams in beam set B, then the terminal knows the receive beam X associated with the transmit beam X, and the network device can determine that the terminal knows the receive beam X based on the protocol agreement, or the network device determines that the terminal knows the receive beam X based on the second information.

In some embodiments, if the transmit beams X are transmit beams other than the best transmit beam in beam set A, and at least one of the transmit beams X is a transmit beam in beam set C, the following conditions exist:

In case 1, the network device determines that the terminal has no known receive beam X associated with transmit beam X.

In case 2, the third information refers to the terminal supporting capability 1, and the network device determines that the terminal already knows the receiving beam X associated with the transmitting beam X.

In case three, the third information indicates that the terminal supports capability two, and the network device determines that the terminal is unknown to the receiving beam X associated with the transmitting beam X.

In some embodiments, for situation one, since the terminal only reports the best transmit beam and whether the best receive beam associated with the best transmit beam is known, and does not report transmit beam X, the network device can directly determine that the terminal is unknown to receive beam X.

In some embodiments, if the transmit beam X is a transmit beam other than the best transmit beam in beam set A, and all transmit beam X are transmit beams in beam set B, then the terminal knows the receive beam X associated with the transmit beam X, and the network device can determine that the terminal knows the receive beam X based on the protocol agreement, or the network device determines that the terminal knows the receive beam X based on the second information.

In some embodiments, if the transmit beam X is a beam among the optimal transmit beams, and at least one of the transmit beams X is a transmit beam in the beam set C, then for case one and case three, steps S2108 and S2109 can be omitted, and the terminal directly activates the transmit beam X associated with the first TCI state.

In some embodiments, if the transmitting beam X is a beam among the optimal transmitting beams, and at least one of the transmitting beams X is a transmitting beam in the beam set C, then for case two and case four, the network device executes step S2108 and the terminal executes step S2109 to determine the unknown receiving beam X.

In some embodiments, when the transmission beam X is a beam among the best transmission beams and all of the transmission beam X are transmission beams in the beam set B, steps S2108 and S2109 can be omitted, and the terminal directly activates the transmission beam X associated with the first TCI state.

In some embodiments, if the transmission beam X is a transmission beam other than the optimal transmission beam in the beam set A, and at least one of the transmission beams X is a transmission beam in the beam set C, then for case one and case three, the network device executes step S2108 and the terminal executes step S2109 to determine the unknown receiving beam X.

In some embodiments, if the transmission beam X is a transmission beam other than the optimal transmission beam in beam set A, and at least one of the transmission beams X is a transmission beam in beam set C, then for case two, steps S2108 and S2109 can be omitted, and the terminal directly activates the transmission beam X associated with the first TCI state.

In some embodiments, for the case where the transmission beam X is a transmission beam other than the optimal transmission beam in beam set A, and all transmission beam X are transmission beams in beam set B, steps S2108 and S2109 can be omitted, and the terminal directly activates the transmission beam X associated with the first TCI state.

In step S2108 , the network device sends a reference signal.

In some embodiments, the terminal receives a reference signal.

In some embodiments, the reference signal is associated with the first TCI state, and the reference signal is used by the terminal to perform receive beam scanning to determine an unknown receive beam X.

In some embodiments, while the first TCI state is activated, the network device transmits a reference signal. In one example, the network device may transmit a reference signal multiple times. The terminal measures these reference signals with different receive beams, obtains measurement results, and determines the unknown receive beam X associated with transmit beam X based on the measurement results.

In some embodiments, the number of times a network device transmits a reference signal can be determined based on a protocol or terminal capabilities. In one example, the protocol stipulates that the network device transmits a reference signal eight times, each time transmitting a reference signal. The terminal can then measure and determine the unknown receive beam X based on the eight reference signals. In another example, the terminal transmits fourth information to the network device, indicating that the terminal can measure and determine the unknown receive beam X based on a single reference signal.

In step S2109, the terminal performs scanning of the reception beam in the time unit in which the first TCI state is activated.

In some embodiments, the terminal performs scanning of the receive beam in a time unit in which the first TCI state is activated based on a reference signal associated with the first TCI state to determine the unknown receive beam X.

In some embodiments, when step S2109 is executed, the time unit for activating the first TCI state includes a first duration (denoted as T _L1 ), and the first duration is the duration for performing receive beam scanning.

In one example, the time unit for activating the first TCI state (TCI state activation delay) can be determined by the following expression (1):

Wherein, n is the time slot in which the network device sends the first command, T _HARQ is the time difference between the terminal receiving the first command and returning confirmation information of the first command to the network device, is 3 time slots long, T _L1 is the duration for performing receive beam scanning, _{T first-SSB} is the time of the first SSB transmission after the UE decodes the first command, _{T SSB-proc} is 2 milliseconds, and _{TO uk} =1 or 0.

In some embodiments, the reference signal used to perform receive beam scanning may be an SSB or a channel state information reference signal (CSI-RS). In one example, if the reference signal is an SSB, the first duration T _L1 = N * T _SSB , where N is the receive beam number. In another example, if the reference signal is a CSI-RS, the first duration T _L1 = N * T _CSI-RS , where N is the receive beam number.

In some embodiments, if the network device indicates activation of multiple first TCI states, the multiple first TCI states are associated with multiple transmit beams X, and at least two receive beams X among the multiple receive beams X associated with the multiple transmit beams X are unknown, the terminal needs to perform receive beam scanning to determine the unknown receive beams X. In this case, the first duration is the longest L1 measurement time of the source RS among the unknown target TCI states.

In some embodiments, when the first TCI state activation involves QCL-Type D, _TOuk for CSI-RS based layer 1 measurement is 1, and _TOuk for SSB based layer 1 measurement is 0. When the first TCI state activation involves only other QCL types, _TOuk = 1.

In some embodiments, when step S2109 is not performed, the time unit for activating the first TCI state does not include the first duration.

In one example, the time unit for activating the first TCI state can be determined by the following expression (2):

Wherein, T _Ok =1 or 0.

In some embodiments, if the first TCI state is not in the activated TCI state list of the physical downlink control channel or the physical downlink shared channel, T _Ok =1, otherwise it is 0.

In step S2110, the terminal activates the transmission beam X associated with the first TCI state in the time unit of activating the first TCI state.

In some embodiments, after receiving the first command instructing activation of the first TCI state, the terminal activates transmit beam X associated with the first TCI state. During the activation of transmit beam X, the terminal needs to know receive beam X associated with the transmit beam. Therefore, if receive beam X associated with transmit beam X is unknown, the terminal needs to scan receive beams during the activation of transmit beam X to measure and determine the unknown receive beam X. In other words, steps S2109 and S2110 can be understood to be performed simultaneously.

The communication method involved in the embodiments of the present disclosure may include at least one of steps S2101 to S2110. For example, step S2101 can be implemented as an independent embodiment. For example, step S2102 can be implemented as an independent embodiment. For example, step S2103 can be implemented as an independent embodiment. For example, step S2104 can be implemented as an independent embodiment. For example, step S2105 can be implemented as an independent embodiment. For example, step S2106 can be implemented as an independent embodiment. For example, step S2107 can be implemented as an independent embodiment. For example, step S2108 can be implemented as an independent embodiment. For example, step S2109 can be implemented as an independent embodiment. For example, step S2110 can be implemented as an independent embodiment. For example, step S2102 and step S2103 can be combined and implemented as a single embodiment. For example, step S2102, step S2103, and step S2104 can be combined and implemented as a single embodiment. For example, steps S2102, S2103, S2104, and S2105 may be combined and implemented as one embodiment. For example, steps S2101, S2102, S2103, S2104, and S2105 may be combined and implemented as one embodiment. For example, steps S2102, S2103, S2104, S2105, and S2106 may be combined and implemented as one embodiment. For example, steps S2107, S2108, and S2110 may be combined and implemented as one embodiment. For example, steps S2107, S2108, S2109, and S2110 may be combined and implemented as one embodiment. For example, steps S2105, S2106, S2107, S2108, S2109, and S2110 may be combined and implemented as one embodiment. For example, step S2101 , step S2105 , step S2107 , step S2108 , step S2109 , and step S2110 may be combined and implemented as one embodiment.

FIG2B is a second exemplary interaction diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG2B , an embodiment of the present disclosure relates to a communication method. Executed by the communication system 100, the communication method includes steps S2201 to S2206.

In the embodiment of the present disclosure, all of the best transmission beams are transmission beams in beam set B.

In step S2201, the terminal performs measurement on each transmit beam in beam set B to obtain measurement result B.

The optional implementation of step S2201 can refer to the optional implementation of step S2102 in Figure 2A and other related parts of the embodiment involved in Figure 2A, which will not be repeated here.

In step S2202, the terminal predicts the measurement result of each transmit beam in beam set A based on measurement result B to obtain measurement result A.

The optional implementation of step S2202 can refer to the optional implementation of step S2103 in Figure 2A and other related parts of the embodiment involved in Figure 2A, which will not be repeated here.

In step S2203, the terminal determines first information based on the measurement result A.

The optional implementation of step S2203 can refer to the optional implementation of step S2104 in Figure 2A and other related parts of the embodiment involved in Figure 2A, which will not be repeated here.

In step S2204, the terminal sends the first information.

In some embodiments, a network device receives first information.

In some embodiments, the first information may be an index of the best transmit beam.

In some embodiments, the best transmission beams indicated by the first information are all transmission beams in beam set B.

In some embodiments, when all the best transmitting beams are transmitting beams in beam set B, the network device can determine whether the terminal knows the best receiving beam associated with the best transmitting beam based on the known conditions agreed upon in the protocol (for example, the known conditions of the TCI state to be activated).

In some embodiments, when all the best transmitting beams are transmitting beams in beam set B, the terminal may also send second information to the network device, where the second information is used to indicate the best receiving beam associated with the best transmitting beam known to the terminal, and the network device determines the best receiving beam known to the terminal based on the second information.

In step S2205 , the network device sends a first command.

In some embodiments, the terminal receives a first command.

In some embodiments, the first command is used to activate at least one first TCI state.

In some embodiments, the first command may be any command capable of activating the first TCI state. In one example, the first command may include, but is not limited to, a media access control-control element (MAC-CE).

In some embodiments, at least one first TCI state is associated with at least one transmit beam X.

In some embodiments, transmit beam X may be a beam in the optimal transmit beam, or may be another transmit beam other than the optimal transmit beam in beam set A. In other words, the network device may select an activated transmit beam X from the optimal transmit beam reported by the terminal, or may directly indicate the transmit beam X to be activated.

In some embodiments, when the transmission beam X is a beam among the best transmission beams, the terminal performs step S2206.

In some embodiments, when the transmission beam X is a transmission beam other than the best transmission beam in the beam set A, and all the transmission beams X are transmission beams in the beam set B, the terminal executes step S2206.

In some embodiments, when the transmission beam X is a transmission beam other than the optimal transmission beam in the beam set A, and at least one of the transmission beams X is a transmission beam in the beam set C, reference may be made to the relevant embodiment in FIG. 2A .

In step S2206, the terminal activates the transmission beam X associated with the first TCI state during the time unit of activating the first TCI state.

In some embodiments, since the receiving beam X corresponding to the transmitting beam X associated with the first TCI state is known, the terminal does not need to perform receiving beam scanning during the process of activating the transmitting beam X associated with the first TCI state, that is, the time to activate the first TCI state does not need to be delayed.

In some examples, the time unit for activating the first TCI state may be determined based on the above expression (2).

The communication method involved in the embodiments of the present disclosure may include at least one of steps S2201 to S2206. For example, step S2201 can be implemented as an independent embodiment. For example, step S2202 can be implemented as an independent embodiment. For example, step S2203 can be implemented as an independent embodiment. For example, step S2204 can be implemented as an independent embodiment. For example, step S2205 can be implemented as an independent embodiment. For example, step S2201 and step S2202 can be combined to implement as an embodiment. For example, step S2201, step S2202, and step S2203 can be combined to implement as an embodiment. For example, step S2202, step S2203, and step S2204 can be combined to implement as an embodiment. For example, step S2204, step S2205, and step S2206 can be combined to implement as an embodiment. For example, step S2201, step S2202, step S2203, and step S2204 may be combined and implemented as one embodiment.

FIG2C is a third exemplary interaction diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG2C , an embodiment of the present disclosure relates to a communication method. Executed by the communication system 100, the communication method includes steps S2301 to S2304.

In step S2301, the network device sends a first command.

In some embodiments, the terminal receives a first command.

In some embodiments, the first command is used to activate at least one first TCI state.

In some embodiments, the first command may be any command capable of activating the first TCI state. In one example, the first command may include, but is not limited to, a media access control-control element (MAC-CE).

In some embodiments, at least one first TCI state is associated with at least one transmit beam X.

In some embodiments, transmit beam X may be a beam in the optimal transmit beam, or may be another transmit beam other than the optimal transmit beam in beam set A. In other words, the network device may select an activated transmit beam X from the optimal transmit beam reported by the terminal, or may directly indicate the transmit beam X to be activated.

In some embodiments, the transmit beam X is known to include one of the following conditions:

Condition 1: The transmit beam X has been measured;

Condition 2: Transmit beam X has been predicted, and the terminal supports predicting multiple receive beams.

Condition three: the transmit beam X has been predicted, and the terminal indicates the receive beam X associated with the known transmit beam X.

In some embodiments, condition one may be understood as the transmission beam X being a transmission beam in beam set B, or may be understood as the first TCI state having been measured.

In some embodiments, condition two can be understood as the transmitting beam X is a beam in the beam set C, and the terminal supports capability one; it can also be understood as the first TCI state has been predicted, and the terminal has also predicted the receiving beam X.

In some embodiments, condition three can be understood as the transmitted beam X being a beam in the beam set C, and the terminal sends the second information, and the second information indicates that the terminal knows the received beam X; it can also be understood as the first TCI state has been predicted, and the terminal sends the second information, and the second information indicates that the terminal knows the received beam X.

In some embodiments, beam X unknown includes one of the following conditions:

Condition 1: The transmit beam X has been predicted, and the terminal supports predicting some of the multiple receive beams.

Condition 2: The transmit beam X has been predicted, and the terminal indicates the receive beam X associated with the unknown transmit beam X.

In some embodiments, condition one can be understood as the transmitted beam X being a beam in beam set C and the terminal supporting capability two; it can also be understood as the first TCI state being predicted and the terminal not predicting the received beam X.

In some embodiments, condition two can be understood as the transmitted beam X being a beam in the beam set C, and the terminal sends second information, and the second information indicates that the terminal is unknown to the receiving beam X; it can also be understood as the first TCI state has been predicted, and the terminal sends second information, and the second information indicates that the terminal is unknown to the receiving beam X.

In one example, if, from the time when the reference signal (RS) resource for the layer 1 measurement report for the first TCI state was last sent to the time when the first TCI state switch is completed, the RS resource for the layer 1 measurement is the RS resource of the first TCI state or the RS resource of quasi co-location (QCL) to the first downlink TCI state, then the optimal receiving beam is known.

In one example, if the first command is received within 1280 ms after the last transmission for the beam reporting or measurement RS resource, and the first TCI state has been measured, the best receive beam is known.

In one example, if the first command is received within 1280 ms after the last transmission of the RS resource for beam reporting or measurement, the first TCI state has been predicted, and the terminal supports prediction of all receive beams, the best receive beam is known.

In one example, if the first command is received within 1280ms after the last transmission for beam reporting or measuring RS resources, the first TCI state has been predicted, and the terminal also reports that the best receive beam is available, then the best receive beam is known.

In one example, if the terminal has sent at least one measurement report for the first TCI state before the first command, and the first TCI state has been measured, the best receiving beam is known.

In one example, if the terminal has sent at least one measurement report for the first TCI state before the first command, the first TCI state has been predicted, and the terminal supports prediction of all receive beams, the best receive beam is known.

In one example, if the terminal sent at least one measurement report for the first TCI state before the first command, the first TCI state has been predicted, and the terminal also reported that the best receive beam is available, then the best receive beam is known.

In one example, if the first TCI state remains detectable during the first TCI state switching, the best receive beam is known.

In one example, if the synchronization signal and PBCH block (SSB) associated with the first TCI state remains detectable during the first TCI state switch, the optimal receive beam is known.

In one example, if the signal-to-noise ratio of the first TCI state is ≥-3dB, the optimal receive beam is known.

In one example, if the conditions in the above example are not met, the optimal receiving beam is unknown.

In some embodiments, if the transmit beam X is known, steps S2302 and S2303 are omitted, and the terminal executes step S2304.

In some embodiments, if the transmission beam X is unknown, the network device executes step S2302 and the terminal executes steps S2303 and S2304.

In step S2302, the network device sends a reference signal.

The optional implementation of step S2302 can refer to the optional implementation of step S2108 in Figure 2A and other related parts of the embodiment involved in Figure 2A, which will not be repeated here.

In step S2303, the terminal performs scanning of the reception beam in the time unit in which the first TCI state is activated.

The optional implementation of step S2303 can refer to the optional implementation of step S2109 in Figure 2A and other related parts of the embodiment involved in Figure 2A, which will not be repeated here.

In step S2304, the terminal activates the transmission beam X associated with the first TCI state in the time unit of activating the first TCI state.

The optional implementation of step S2304 can refer to the optional implementation of step S2110 in Figure 2A and other related parts of the embodiment involved in Figure 2A, which will not be repeated here.

In some embodiments, step S2301 and step S2302 may be executed in an interchangeable order or simultaneously.

FIG2D is a fourth exemplary interaction diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG2D , the present disclosure embodiment relates to a communication method. Executed by the communication system 100, the communication method includes steps S2401 to S2406.

In step S2401, the terminal sends third information.

The optional implementation of step S2401 can refer to the optional implementation of step S2101 in Figure 2A and other related parts of the embodiment involved in Figure 2A, which will not be repeated here.

In step S2402, the terminal performs measurement on each transmit beam in beam set B to obtain measurement result B.

The optional implementation of step S2402 can refer to the optional implementation of step S2102 in Figure 2A and other related parts of the embodiment involved in Figure 2A, which will not be repeated here.

In step S2403, the terminal predicts the measurement result of each transmit beam in beam set A based on measurement result B to obtain measurement result A.

The optional implementation of step S2403 can refer to the optional implementation of step S2103 in Figure 2A and other related parts of the embodiment involved in Figure 2A, which will not be repeated here.

In step S2404, the terminal determines first information based on the measurement result A.

The optional implementation of step S2404 can refer to the optional implementation of step S2104 in Figure 2A and other related parts of the embodiment involved in Figure 2A, which will not be repeated here.

In step S2405, the terminal sends the first information.

The optional implementation of step S2405 can refer to the optional implementation of step S2105 in Figure 2A and other related parts of the embodiment involved in Figure 2A, which will not be repeated here.

In step S2406, the terminal sends the second information.

The optional implementation of step S2406 can refer to the optional implementation of step S2106 in Figure 2A and other related parts of the embodiment involved in Figure 2A, which will not be repeated here.

In some embodiments, step S2406 may be performed at any time before step S2405.

In some embodiments, step S2401 and step S2406 may be performed alternatively.

In some embodiments, step S2405 and step S2406 may be performed simultaneously.

The communication method involved in the embodiments of the present disclosure may include at least one of steps S2401 to S2406. For example, step S2401 can be implemented as an independent embodiment. For example, step S2402 can be implemented as an independent embodiment. For example, step S2403 can be implemented as an independent embodiment. For example, step S2404 can be implemented as an independent embodiment. For example, step S2405 can be implemented as an independent embodiment. For example, step S2406 can be implemented as an independent embodiment. For example, step S2401 and step S2402 can be combined to implement as one embodiment. For example, step S2401, step S2402, and step S2403 can be combined to implement as one embodiment. For example, step S2402, step S2403, and step S2404 can be combined to implement as one embodiment. For example, step S2404, step S2405, and step S2406 can be combined to implement as one embodiment. For example, step S2401, step S2402, step S2403, and step S2404 can be combined to implement as one embodiment. For example, step S2401, step S2402, step S2403, step S2404, and step S2405 can be combined to implement as one embodiment.

In some embodiments, terms such as “third transmit beam”, “optimal transmit beam”, and “target transmit beam” may be used interchangeably.

In some embodiments, terms such as “first receiving beam”, “optimal receiving beam”, and “target receiving beam” may be used interchangeably.

In some embodiments, terms such as “the first receiving beam associated with the third transmitting beam”, “the first receiving beam corresponding to the third transmitting beam”, and “the first receiving beam paired with the third transmitting beam” can be used interchangeably.

In some embodiments, the terms "transmit beam," "TX beam," and the like may be used interchangeably.

In some embodiments, the terms "receive beam," "RX beam," and the like may be used interchangeably.

In some embodiments, terms such as "all," "complete," and "plurality" may be used interchangeably.

In some embodiments, the terms "particular", "portion", "portion of a plurality" and the like can be used interchangeably.

In some embodiments, terms such as "TCI state activation" and "TCI state switching" can be used interchangeably.

In some embodiments, terms such as “time unit for activating a TCI state”, “time unit for switching a TCI state”, “activation duration”, and “switching duration” may be used interchangeably.

In some embodiments, the names of information, etc. are not limited to the names described in the embodiments, and terms such as "information", "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "domain", "field", "symbol", "symbol", "codeword", "codebook", "codeword", "codepoint", "bit", "data", "program", and "chip" can be used interchangeably.

In some embodiments, the terms "carry", "include", "contain", "encapsulate", etc. can be used interchangeably.

In some embodiments, the terms "radio", "wireless", "radio access network (RAN)", "access network (AN)", "RAN-based" and the like may be used interchangeably.

In some embodiments, "obtain", "get", "get", "receive", "transmit", "bidirectional transmission", "send and/or receive" can be interchangeable, and can be interpreted as receiving from other entities, obtaining from protocols, obtaining from higher layers, obtaining by self-processing, autonomous implementation, etc.

In some embodiments, terms such as "send", "transmit", "report", "transmit", "request", "bidirectional transmission", "send and/or receive" and the like can be used interchangeably.

In some embodiments, terms such as "send", "return", "feedback", "response", and "answer" can be used interchangeably.

In some embodiments, terms such as "certain", "preset", "preset", "setting", "indicated", "a certain", "any", and "first" can be interchangeable. "Specific A", "preset A", "preset A", "setting A", "indicated A", "a certain A", "any A", and "first A" can be interpreted as A pre-specified in a protocol, etc., or as A obtained through setting, configuration, or indication, etc., or as specific A, a certain A, any A, or first A, etc., but not limited to this.

In some embodiments, the determination or judgment can be performed by a value represented by 1 bit (0 or 1), or by a true or false value (Boolean value) represented by true or false, or by comparison of numerical values (for example, comparison with a predetermined value), but is not limited thereto.

FIG3A is a flow chart showing a terminal executing a communication method according to an embodiment of the present disclosure. As shown in FIG3A , the present disclosure embodiment relates to a communication method executed by a terminal. The communication method includes steps S3101 to S3110.

In step S3101, the third information is sent.

The optional implementation of step S3101 can refer to the optional implementation of step S2101 in Figure 2A and other related parts of the embodiment involved in Figure 2A, which will not be repeated here.

In step S3102, measurement is performed on each transmit beam in beam set B to obtain measurement result B.

The optional implementation of step S3102 can refer to the optional implementation of step S2102 in Figure 2A and other related parts of the embodiment involved in Figure 2A, which will not be repeated here.

In step S3103 , based on the measurement result B, the measurement result of each transmit beam in the beam set A is predicted to obtain the measurement result A.

The optional implementation of step S3103 can be found in the optional implementation of step S2103 in FIG2A and other related parts of the embodiment involved in FIG2A , which will not be described in detail here.

In step S3104, based on the measurement result A, first information is determined.

The optional implementation of step S3104 can refer to the optional implementation of step S2104 in Figure 2A and other related parts of the embodiment involved in Figure 2A, which will not be repeated here.

In step S3105, the first information is sent.

The optional implementation of step S3105 can refer to the optional implementation of step S2105 in Figure 2A and other related parts of the embodiment involved in Figure 2A, which will not be repeated here.

In step S3106, the second information is sent.

The optional implementation of step S3106 can refer to the optional implementation of step S2106 in Figure 2A and other related parts of the embodiment involved in Figure 2A, which will not be repeated here.

In step S3107, a first command is received.

The optional implementation of step S3107 can be found in the optional implementation of step S2107 in FIG2A and other related parts of the embodiment involved in FIG2A , which will not be described in detail here.

In step S3108, a reference signal is received.

The optional implementation of step S3108 can be found in the optional implementation of step S2108 in FIG2A and other related parts of the embodiment involved in FIG2A , which will not be described in detail here.

In step S3109, scanning of the reception beam is performed at the time unit in which the first TCI state is activated.

The optional implementation of step S3109 can be found in the optional implementation of step S2109 in FIG2A and other related parts of the embodiment involved in FIG2A , which will not be described in detail here.

In step S3110, during the time unit in which the first TCI state is activated, the transmit beam X associated with the first TCI state is activated.

The optional implementation of step S3110 can refer to the optional implementation of step S2110 in Figure 2A and other related parts of the embodiment involved in Figure 2A, which will not be repeated here.

The communication method involved in the embodiments of the present disclosure may include at least one of steps S3101 to S3110. For example, step S3101 can be implemented as an independent embodiment. For example, step S3102 can be implemented as an independent embodiment. For example, step S3103 can be implemented as an independent embodiment. For example, step S3104 can be implemented as an independent embodiment. For example, step S3105 can be implemented as an independent embodiment. For example, step S3106 can be implemented as an independent embodiment. For example, step S3107 can be implemented as an independent embodiment. For example, step S3108 can be implemented as an independent embodiment. For example, step S3109 can be implemented as an independent embodiment. For example, step S3110 can be implemented as an independent embodiment. For example, step S3102 and step S3103 can be combined and implemented as a single embodiment. For example, step S3102, step S3103, and step S3104 can be combined and implemented as a single embodiment. For example, steps S3102, S3103, S3104, and S3105 can be combined and implemented as one embodiment. For example, steps S3101, S3102, S3103, S3104, and S3105 can be combined and implemented as one embodiment. For example, steps S3102, S3103, S3104, S3105, and S3106 can be combined and implemented as one embodiment. For example, steps S3107, S3108, and S3110 can be combined and implemented as one embodiment. For example, steps S3107, S3108, S3109, and S3110 can be combined and implemented as one embodiment. For example, steps S3105, S3106, S3107, S3108, S3109, and S3110 can be combined and implemented as one embodiment. For example, step S3101, step S3105, step S3107, step S3108, step S3109 and step S3110 may be combined and implemented as one embodiment.

FIG3B is a second flow chart illustrating a terminal executing a communication method according to an embodiment of the present disclosure. As shown in FIG3B , the present disclosure embodiment relates to a communication method executed by a terminal. The communication method includes steps S3201 to S3206.

In step S3201, measurement is performed on each transmit beam in beam set B to obtain measurement result B.

The optional implementation of step S3201 can refer to the optional implementation of step S2201 in Figure 2B and other related parts of the embodiment involved in Figure 2B, which will not be repeated here.

In step S3202, based on the measurement result B, the measurement result of each transmit beam in the beam set A is predicted to obtain the measurement result A.

The optional implementation of step S3202 can refer to the optional implementation of step S2202 in Figure 2B and other related parts of the embodiment involved in Figure 2B, which will not be repeated here.

In step S3203, first information is determined based on the measurement result A.

The optional implementation of step S3203 can refer to the optional implementation of step S2203 in Figure 2B and other related parts of the embodiment involved in Figure 2B, which will not be repeated here.

In step S3204, the first information is sent.

The optional implementation of step S3204 can refer to the optional implementation of step S2204 in Figure 2B and other related parts of the embodiment involved in Figure 2B, which will not be repeated here.

In step S3205, a first command is received.

The optional implementation of step S3205 can refer to the optional implementation of step S2205 in Figure 2B and other related parts of the embodiment involved in Figure 2B, which will not be repeated here.

In step S3206, during the time unit in which the first TCI state is activated, the transmit beam X associated with the first TCI state is activated.

The optional implementation of step S3206 can refer to the optional implementation of step S2206 in Figure 2B and other related parts of the embodiment involved in Figure 2B, which will not be repeated here.

The communication method involved in the embodiments of the present disclosure may include at least one of steps S3201 to S3206. For example, step S3201 can be implemented as an independent embodiment. For example, step S3202 can be implemented as an independent embodiment. For example, step S3203 can be implemented as an independent embodiment. For example, step S3204 can be implemented as an independent embodiment. For example, step S3205 can be implemented as an independent embodiment. For example, step S3201 and step S3202 can be combined to implement as one embodiment. For example, step S3205 and step S3206 can be combined to implement as one embodiment. For example, step S3201, step S3202, and step S3203 can be combined to implement as one embodiment. For example, step S3202, step S3203, and step S3204 can be combined to implement as one embodiment. For example, step S3204, step S3205, and step S3206 can be combined to implement as one embodiment. For example, step S3201, step S3202, step S3203, and step S3204 may be combined and implemented as one embodiment.

FIG3C is a flow chart illustrating a network device executing a communication method according to an embodiment of the present disclosure. As shown in FIG3C , the present disclosure embodiment relates to a communication method executed by a network device. The communication method includes steps S3301 to S3305.

In step S3301, third information is received.

The optional implementation of step S3301 can refer to the optional implementation of step S2101 in Figure 2A and other related parts of the embodiment involved in Figure 2A, which will not be repeated here.

In step S3302, first information is received.

The optional implementation of step S3301 can refer to the optional implementation of step S2105 in Figure 2A and other related parts of the embodiment involved in Figure 2A, which will not be repeated here.

In step S3303, the second information is received.

The optional implementation of step S3303 can refer to the optional implementation of step S2106 in Figure 2A and other related parts of the embodiment involved in Figure 2A, which will not be repeated here.

In step S3304, a first command is sent.

The optional implementation of step S3304 can refer to the optional implementation of step S2107 in Figure 2A and other related parts of the embodiment involved in Figure 2A, which will not be repeated here.

In step S3305, a reference signal is sent.

The optional implementation of step S3305 can refer to the optional implementation of step S2108 in Figure 2A and other related parts of the embodiment involved in Figure 2A, which will not be repeated here.

FIG3D is a second schematic diagram of an implementation flow of a network device executing a communication method according to an embodiment of the present disclosure. As shown in FIG3D , the present disclosure embodiment relates to a communication method executed by a network device. The communication method includes steps S3401 to S3402.

In step S3401, first information is received.

The optional implementation of step S3401 can refer to the optional implementation of step S2204 in Figure 2B and other related parts of the embodiment involved in Figure 2B, which will not be repeated here.

In step S3402, a first command is sent.

The optional implementation of step S3402 can refer to the optional implementation of step S2205 in Figure 2B and other related parts of the embodiment involved in Figure 2B, which will not be repeated here.

FIG4A is a third schematic diagram of an implementation flow of a terminal executing a communication method according to an embodiment of the present disclosure. As shown in FIG4A , the embodiment of the present disclosure relates to a communication method executed by a terminal. The communication method includes steps S4101 to S4102.

In step S4101, based on the measurement results of beam set B, the measurement results of beam set A are predicted.

The optional implementation of step S4101 can refer to the optional implementation of step S2101 in Figure 2A and other related parts of the embodiment involved in Figure 2A, which will not be repeated here.

In step S4102, first information is sent based on the measurement result of beam set A.

The optional implementation of step S4102 can refer to the optional implementation of step S2102 in Figure 2A and other related parts of the embodiment involved in Figure 2A, which will not be repeated here.

FIG4B is a third schematic diagram of a flow chart of a network device executing a communication method according to an embodiment of the present disclosure. As shown in FIG4B , the present disclosure embodiment relates to a communication method executed by a network. The communication method includes step S4201.

In step S4201, first information is received.

The optional implementation of step S4201 can refer to the optional implementation of step S2102 in Figure 2A and other related parts of the embodiment involved in Figure 2A, which will not be repeated here.

In some embodiments, the AI-based beam reporting process includes the following steps: Step 1: L1-RSRP measurement for beam set B. For each TX beam in beam set B, the UE performs RX beam scanning. This means the UE measures the same TX beam with multiple RX beams and selects the maximum value as the TX beam result. Step 2: Based on the measurement results in beam set B, the UE predicts the L1-RSRP measurement results for beams in beam set A. The UE selects the optimal TX beam with the maximum L1-RSRP for reporting.

In some embodiments, the best TX beam is reported in two cases: Case 1: The best TX beam is in beam set B. Since the UE performs RX beam scanning on all TX beams in beam set B, the UE knows the corresponding best RX beam. Case 2: The best TX beam is in beam set A. The UE only predicts the best TX beam in beam set A. The UE may or may not know the best RX beam, depending on its capabilities.

In some embodiments, for case 1, the UE will report the best TX beam index. For case 2, there are two options for defining the reporting method. Option 1: The UE will report the best TX beam index and also report whether it knows the best RX beam. Option 2: The UE only reports the best TX beam index. A UE capability is defined to distinguish whether the UE knows the best RX beam. This capability is reported to the network when the UE enters the network early.

In some embodiments, the UE's capabilities include capability 1 or capability 2. Capability 1: The UE supports full RX beam prediction capability. The UE predicts the optimal TX beam and the corresponding RX beam together. The TX beam is the TX beam that produces the maximum L1-RSRP across all TX and RX beam pairs. Capability 2: The UE supports specific RX beam prediction capability. The UE predicts the optimal TX beam with a specific RX beam. The TX beam is the TX beam that produces the maximum L1-RSRP across all TX beams with the specific RX beam.

In some embodiments, for capability 2, the UE predicts and reports the best TX beam based only on one or more specific RX beams. Therefore, in practice, the UE may not know the best RX beam for the reported best TX beam. Therefore, during the TCI state activation period, the network needs to send an additional RS with a target TCI state multiple times so that the UE can perform measurements of the best RX beam. The UE will measure these RSs with different RX beams and select the RX beam with the highest RSRP.

In some embodiments, different delay requirements are defined for TCI state activation delay depending on whether RX beam scanning is required. Therefore, it is necessary to define the RX beam knowledge condition. If the best RX beam is known, the UE does not need to perform additional RX beam scanning. Whether the best RX beam is known depends on AI-based beam reporting.

In some embodiments, the UE may not need to perform RX beam scanning during TCI state activation under the following conditions: Condition 1: The target TCI state in the TCI activation command has been measured. Condition 2: The target TCI state in the TCI activation command is predicted, and the UE also predicts the best RX beam (determined when reporting UE capabilities).

In some embodiments, condition 2 includes one of the following: case 1, the UE has reported the best TX beam index and whether the best RX beam is known in the AI-based beam report; case 2, the UE reports the best TX beam index and the UE supports full RX beam prediction capability.

In some embodiments, the target TCI state is known if the following conditions are met:

The period from the last time the RS resource for the L1-RSRP measurement report for the target TCI state is sent to the completion of the TCI switching, where the RS resource for the L1-RSRP measurement is the RS in the target TCI state or the RS that is QCLed to the target TCI state.

The TCI state switch command is received within 1280ms after the last transmission of RS resources for beam reporting or measurement.

The UE has sent at least one L1-RSRP report for the target TCI before the TCI state switching command.

The target TCI state in the L1-RSRP report has been measured, or,

Predict the target TCI state in the L1-RSRP report and the UE supports full RX beam prediction capability, or,

The target TCI state in the L1-RSRP report is predicted and the UE also reports the availability of RX beam prediction.

During the TCI state switching period, the TCI state remains detectable.

During the TCI state switching period, the SSB associated with the TCI state remains detectable.

The signal-to-noise ratio in TCI status is ≥-3dB.

The SSB can be associated with the physical cell identification (PCI) of the serving cell, or with a PCI that is different from the serving cell PCI.

Otherwise, the target TCI state is unknown.

In some embodiments, if the target TCI state is unknown, the UE should be able to The UE shall be able to receive the UE-dedicated physical downlink control channel/physical downlink shared channel with the target TCI state of the serving cell where the TCI state switch occurs until the first time slot after the TCI state switch occurs.

Wherein, T _L1-RSRP is the time used for Rx beam refinement in FR2. The RS used for RX beam measurement can be SSB or CSI-RS. For example, T _L1-RSRP = N * T _SSB or T _L1-RSR = N * T _CSI-RS , where N is the RX beam number.

When the TCI state switching involves QCL-Type D, TO _uk =1 for L1-RSRP measurement based on CSI-RS, and TO _uk =0 for L1-RSR measurement based on SSB.

When TCI state switching involves only other QCL types, _TOuk =1.

Tfirst _-SSB is the time to the first SSB transmission after L1-RSRP measurement when TCI state switching involves QCL-Type D.

Tfirst _-SSB is the time of the first SSB transmission after the UE decodes the MAC CE command for other QCL types.

The SSB should be QCL-TypeA or QCL-TypeC of the target TCI state.

In some embodiments, if the subset of target TCI states in the active TCI state list is unknown, then upon receiving a physical downlink shared channel message carrying a MAC-CE active TCI list update at time slot n, the UE shall be able to The UE-dedicated physical downlink control channel/physical downlink shared channel with the new target TCI state is received at the first time slot after the time slot. Wherein, T _{L1-RSRP_list} is the longest L1 measurement time of the source RS in the unknown target TCI state.

The present disclosure also provides a device for implementing any of the above methods. For example, a terminal is provided, which includes units or modules for implementing each step performed by the terminal in any of the above methods. For another example, another access network device is provided, which includes units or modules for implementing each step performed by the access network device in any of the above methods.

It should be understood that the division of the various units or modules in the above device is only a division of logical functions. In actual implementation, they can be fully or partially integrated into one physical entity, or they can be physically separated. In addition, the units or modules in the device can be implemented in the form of a processor calling software: for example, the device includes a processor, the processor is connected to a memory, and instructions are stored in the memory. The processor calls the instructions stored in the memory to implement any of the above methods or implement the functions of the various units or modules of the above device, wherein the processor is, for example, a general-purpose processor, such as a central processing unit (CPU) or a microprocessor, and the memory is a memory within the device or a memory outside the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits, and the functions of some or all of the units or modules can be realized by designing the hardware circuits. The above-mentioned hardware circuits can be understood as one or more processors. For example, in one implementation, the above-mentioned hardware circuit is an application-specific integrated circuit (ASIC), and the functions of some or all of the above units or modules are realized by designing the logical relationship between the components in the circuit. For another example, in another implementation, the above-mentioned hardware circuit can be implemented by a programmable logic device (PLD). Taking a field programmable gate array (FPGA) as an example, it can include a large number of logic gate circuits, and the connection relationship between the logic gate circuits is configured through a configuration file, thereby realizing the functions of some or all of the above units or modules. All units or modules of the above devices can be implemented in the form of software called by the processor, or in the form of hardware circuits, or in part by software called by the processor, and the rest by hardware circuits.

In the embodiments of the present disclosure, the processor is a circuit with signal processing capabilities. In one implementation, the processor can be a circuit with instruction reading and execution capabilities, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP). In another implementation, the processor can implement certain functions through the logical relationship of a hardware circuit. The logical relationship of the above-mentioned hardware circuit is fixed or reconfigurable. For example, the processor is a hardware circuit implemented by an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document to implement the hardware circuit configuration can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. In addition, it can also be a hardware circuit designed for artificial intelligence, which can be understood as ASIC, such as the Neural Network Processing Unit (NPU), the Tensor Processing Unit (TPU), the Deep Learning Processing Unit (DPU), etc.

FIG5 is a schematic diagram of the structure of a communication device according to an embodiment of the present disclosure. As shown in FIG5 , a communication device 5100 may include a transceiver module 5101 .

In some embodiments, the communication device 5100 is a terminal, and the transceiver module 5101 is configured to predict measurement results of multiple second transmit beams based on the measurement results of the first transmit beam, where the first transmit beam is at least one of the multiple second transmit beams; and transmit first information based on the measurement results of the multiple second transmit beams, where the first information is used to indicate a third transmit beam among the multiple second transmit beams. In some embodiments, the transceiver module 5101 is configured to perform at least one of the communication steps (e.g., steps S3101, S3105, and S3106, but not limited thereto) performed by the terminal in any of the above methods, and is not further described herein.

In some embodiments, the communication device 5100 is a network device, and the transceiver module 5101 is configured to receive first information, where the first information is sent by a terminal based on measurement results of multiple second transmit beams, and the first information is used to indicate a third transmit beam among the multiple second transmit beams; the measurement results of the multiple second transmit beams are predicted based on the measurement results of the first transmit beam, and the first transmit beam is at least one of the multiple second transmit beams. In some embodiments, the transceiver module 5101 is further configured to execute at least one of the communication steps (e.g., step S3301, step S3302, and step S3303, but not limited thereto) performed by the terminal in any of the above methods, which are not further described herein.

In some embodiments, the transceiver module may include a transmitting module and/or a receiving module. The transmitting module and the receiving module may be separate or integrated. Optionally, the transceiver module may be interchangeable with the transceiver.

Figure 6 is a schematic diagram of the structure of a communication device provided according to an embodiment of the present disclosure. Communication device 6100 can be a network device, a terminal (e.g., user equipment), a chip, a chip system, or a processor that supports a network device to implement any of the above methods, or a chip, a chip system, or a processor that supports a terminal to implement any of the above methods. Communication device 6100 can be used to implement the methods described in the above method embodiments. For details, please refer to the description of the above method embodiments.

As shown in Figure 6, the communication device 6100 includes one or more processors 6101. The processor 6101 can be a general-purpose processor or a dedicated processor, for example, a baseband processor or a central processing unit. The baseband processor can be used to process the communication protocol and communication data, and the central processing unit can be used to control the communication device (such as a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute programs, and process program data. Optionally, the communication device 6100 is used to perform any of the above methods. Optionally, one or more processors 6101 are used to call instructions to enable the communication device 6100 to perform any of the above methods.

In some embodiments, the communication device 6100 further includes one or more transceivers 6102. When the communication device 6100 includes one or more transceivers 6102, the transceiver 6102 performs at least one of the communication steps (e.g., step S3101, step S3105, step S3106, but not limited thereto) such as sending and/or receiving in the above method, and the processor 6101 performs at least one of the other steps (e.g., step S3102, step S3103, but not limited thereto). In an optional embodiment, the transceiver 6102 may include a receiver and/or a transmitter, and the receiver and transmitter may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, transceiver circuit, interface circuit, and interface may be interchangeable, the terms transmitter, transmitting unit, transmitter, and transmitting circuit may be interchangeable, and the terms receiver, receiving unit, receiver, and receiving circuit may be interchangeable.

In some embodiments, the communication device 6100 further includes one or more memories 6103 for storing data. Alternatively, all or part of the memories 6103 may be located outside the communication device 6100. In alternative embodiments, the communication device 6100 may include one or more interface circuits 6104. Optionally, the interface circuits 6104 are connected to the memories 6103 and may be configured to receive data from the memories 6103 or other devices, or to send data to the memories 6103 or other devices. For example, the interface circuits 6104 may read data stored in the memories 6103 and send the data to the processor 6101.

The communication device 6100 described in the above embodiment may be an access network device or a terminal, but the scope of the communication device 6100 described in the present disclosure is not limited thereto, and the structure of the communication device 6100 may not be limited by FIG. 6 . The communication device may be an independent device or may be part of a larger device. For example, the communication device may be: 1) an independent integrated circuit IC, or a chip, or a chip system or subsystem; (2) a collection of one or more ICs, optionally, the above IC collection may also include a storage component for storing data or programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, a terminal device, an intelligent terminal device, a cellular phone, a wireless device, a handheld device, a mobile unit, an in-vehicle device, a network device, a cloud device, an artificial intelligence device, etc.; (6) others, etc.

FIG7 is a schematic diagram of the structure of a chip provided according to an embodiment of the present disclosure. If the communication device 6100 can be a chip or a chip system, please refer to the schematic diagram of the structure of the chip 7100 shown in FIG7 , but the present invention is not limited thereto.

The chip 7100 includes one or more processors 7101. The chip 7100 is configured to execute any of the above methods.

In some embodiments, chip 7100 further includes one or more interface circuits 7102. Terms such as interface circuit, interface, and transceiver pins may be used interchangeably. In some embodiments, chip 7100 further includes one or more memories 7103 for storing data. Alternatively, all or part of memory 7103 may be located external to chip 7100. Optionally, interface circuit 7102 is connected to memory 7103 and may be used to receive data from memory 7103 or other devices, or may be used to send data to memory 7103 or other devices. For example, interface circuit 7102 may read data stored in memory 7103 and send the data to processor 7101.

In some embodiments, the interface circuit 7102 performs at least one of the communication steps (e.g., step S3101, step S3105, and step S3106, but not limited thereto) of the above method. The interface circuit 7102 performing the communication steps (e.g., step S3101, step S3105, and step S3106, but not limited thereto) of the above method means, for example, that the interface circuit 7102 performs data exchange between the processor 7101, chip 7100, memory 7103, or transceiver device. In some embodiments, the processor 7101 performs at least one of the other steps (e.g., step S3102, step S3103, and step S3104, but not limited thereto).

The modules and/or devices described in various embodiments, such as virtual devices, physical devices, and chips, can be arbitrarily combined or separated according to circumstances. Optionally, some or all steps can also be performed collaboratively by multiple modules and/or devices, which is not limited here.

The embodiments of the present disclosure further provide a storage medium having instructions stored thereon. When the instructions are executed on the communication device 6100, the communication device 6100 executes any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but is not limited thereto and may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but is not limited thereto and may also be a temporary storage medium.

The present disclosure also provides a program product, which, when executed by the communication device 6100, enables the communication device 6100 to perform any of the above methods. Optionally, the program product is a computer program product.

The embodiments of the present disclosure further provide a computer program, which, when executed on a computer, enables the computer to execute any of the above methods.

Other embodiments of the present invention will readily occur to those skilled in the art after considering the specification and practicing the invention disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the invention that follow from the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only, with the true scope and spirit of the invention being indicated by the following claims.

It should be understood that the present invention is not limited to the exact construction described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims (37)

A communication method, performed by a terminal, comprising: Predicting measurement results of a plurality of second transmit beams based on the measurement result of the first transmit beam, wherein the first transmit beam is at least one of the plurality of second transmit beams; Based on the measurement results of the plurality of second transmission beams, first information is transmitted, where the first information is used to indicate a third transmission beam in the plurality of second transmission beams. The method according to claim 1, wherein the third transmission beam is a beam corresponding to the first n measurement results of the multiple second transmission beams in descending order, where n is a positive integer. The method according to claim 1 or 2, wherein the method further comprises: Perform a receive beam scan on the first transmit beam to obtain a measurement result of the first transmit beam. The method according to any one of claims 1 to 3, wherein the measurement result satisfies one or more of the following: The measurement results include measurement results of layer 1 measurement; The measurement result includes a reference signal received power. The method according to any one of claims 1 to 4, wherein the third transmission beam is at least one of the first transmission beams; or, the third transmission beam is at least one of the fourth transmission beams, and the fourth transmission beam is a beam in the plurality of second transmission beams other than the first transmission beam. The method according to claim 5, wherein the third transmit beam is at least one of the first transmit beams, and the first receive beam associated with the third transmit beam is known; or, the third transmit beam is at least one of the fourth transmit beams, and the first receive beam associated with the third transmit beam is known or unknown. The method according to any one of claims 1 to 6, further comprising: Second information is sent, where the second information is used to indicate whether the terminal knows the first receiving beam associated with the third transmitting beam. The method according to any one of claims 1 to 7, wherein the method further comprises: Send third information, where the third information is used to indicate the terminal's prediction capability for the first receiving beam associated with the third transmitting beam, and the terminal's prediction capability for the first receiving beam associated with the third transmitting beam is used by the network device to determine whether the terminal is aware of the first receiving beam. The method according to claim 8, wherein the terminal's prediction capability of the first receive beam associated with the third transmit beam comprises one of the following: The terminal supports prediction of multiple receive beams; The terminal supports predicting some reception beams among a plurality of reception beams. The method according to any one of claims 1 to 9, wherein, after transmitting the first information based on the measurement results of the plurality of second transmit beams, the method further comprises at least one of the following: Not performing receive beam scanning during a time unit in which the first transmission configuration indication TCI state is activated; performing receive beam scanning during a time unit in which a first TCI state is activated; When the first receive beam associated with the third transmit beam is known, not performing receive beam scanning in a time unit in which the first TCI state is activated; When the first receive beam associated with the third transmit beam is unknown, performing receive beam scanning in a time unit in which the first TCI state is activated; Wherein, the first TCI state is associated with the third transmit beam. The method according to claim 10, wherein the time unit for activating the first TCI state includes a first duration, and the first duration is the duration for performing receive beam scanning. The method according to claim 10 or 11, wherein the first receive beam is known to include at least one of the following situations: The third transmit beam has been measured; The third transmit beam has been predicted, and the terminal supports prediction of multiple receive beams; The third transmit beam has been predicted, and the terminal indicates a first receive beam associated with the known third transmit beam. The method according to claim 10 or 11, wherein the first receive beam is known to include at least one of the following situations: The third transmission beam is at least one of the first transmission beams; The third transmit beam is at least one of the fourth transmit beams, and the terminal supports prediction of multiple receive beams; The third transmit beam is at least one of the fourth transmit beams, and the terminal indicates a first receive beam associated with the third transmit beam; The fourth transmission beam is a beam among the multiple second transmission beams except the first transmission beam. The method according to any one of claims 10 to 13, wherein the first receive beam being unknown includes at least one of the following situations: The third transmit beam has been predicted, and the terminal supports predicting some receive beams among a plurality of receive beams; The third transmit beam has been predicted, and the terminal indicates that the first receive beam associated with the third transmit beam is unknown. The method according to any one of claims 10 to 13, wherein the first receive beam being unknown includes at least one of the following situations: The third transmit beam is at least one of the fourth transmit beams, and the terminal supports prediction of some receive beams among a plurality of receive beams; The third transmit beam is at least one of the fourth transmit beams, and the terminal indicates that the first receive beam associated with the third transmit beam is unknown; The fourth transmission beam is a beam among the multiple second transmission beams except the first transmission beam. A communication method, performed by a network device, comprising: Receive first information, where the first information is sent by the terminal based on measurement results of multiple second transmission beams, and the first information is used to indicate a third transmission beam among the multiple second transmission beams; the measurement results of the multiple second transmission beams are predicted based on the measurement results of the first transmission beam, and the first transmission beam is at least one of the multiple second transmission beams. The method according to claim 16, wherein the third transmission beam is a beam corresponding to the first n measurement results of the multiple second transmission beams in descending order, where n is a positive integer. The method according to claim 16 or 17, wherein the measurement result satisfies one or more of the following: The measurement results include measurement results of layer 1 measurement; The measurement result includes a reference signal received power. The method according to any one of claims 16 to 18, wherein the third transmission beam is at least one of the first transmission beams; or, the third transmission beam is at least one of the fourth transmission beams, and the fourth transmission beam is a beam in the plurality of second transmission beams other than the first transmission beam. The method according to claim 19, wherein the third transmit beam is at least one of the first transmit beams, and the first receive beam associated with the third transmit beam is known; or, the third transmit beam is at least one of the fourth transmit beams, and the first receive beam associated with the third transmit beam is known or unknown. The method according to any one of claims 16 to 20, wherein the method further comprises: Second information is received, where the second information is used to indicate whether the terminal knows the first receiving beam associated with the third transmitting beam. The method according to any one of claims 16 to 21, further comprising: Receive third information, where the third information is used to indicate the terminal's prediction capability for the first receive beam associated with the third transmit beam, and the terminal's prediction capability for the first receive beam associated with the third transmit beam is used by the network device to determine whether the terminal is aware of the first receive beam. The method according to claim 22, wherein the terminal's prediction capability of the first receive beam associated with the third transmit beam comprises one of the following: The terminal supports prediction of multiple receive beams; The terminal supports predicting some reception beams among a plurality of reception beams. The method according to any one of claims 16 to 23, wherein the method further comprises at least one of the following: No reference signal is sent; Sending a reference signal; When the first receiving beam associated with the third transmitting beam is known, no reference signal is sent; When the first receiving beam associated with the third transmitting beam is unknown, sending a reference signal; The reference signal is used by the terminal to perform receive beam scanning in a time unit in which the first transmission configuration indication TCI state is activated. The method according to claim 24, wherein the time unit for activating the first TCI state includes a first duration, and the first duration is the duration for performing receive beam scanning. The method according to claim 24 or 25, wherein the first receive beam is known to include at least one of the following situations: The third transmit beam has been measured; The third transmit beam has been predicted, and the terminal supports prediction of multiple receive beams; The third transmit beam has been predicted, and the terminal indicates a first receive beam associated with the known third transmit beam. The method according to claim 24 or 25, wherein the first receive beam is known to include at least one of the following situations: The third transmission beam is at least one of the first transmission beams; The third transmit beam is at least one of the fourth transmit beams, and the terminal supports prediction of multiple receive beams; The third transmit beam is at least one of the fourth transmit beams, and the terminal indicates a first receive beam associated with the third transmit beam; The fourth transmission beam is a beam among the multiple second transmission beams except the first transmission beam. The method according to any one of claims 24 to 27, wherein the first receive beam being unknown includes at least one of the following situations: The third transmit beam has been predicted, and the terminal supports predicting some receive beams among a plurality of receive beams; The third transmit beam has been predicted, and the terminal indicates that the first receive beam associated with the third transmit beam is unknown. The method according to any one of claims 24 to 27, wherein the first receive beam being unknown includes at least one of the following situations: The third transmit beam is at least one of the fourth transmit beams, and the terminal supports prediction of some receive beams among the plurality of receive beams; The third transmit beam is at least one of the fourth transmit beams, and the terminal indicates that the first receive beam associated with the third transmit beam is unknown; The fourth transmission beam is a beam among the multiple second transmission beams except the first transmission beam. A terminal, comprising: The transceiver module is configured to predict the measurement results of multiple second transmission beams based on the measurement results of the first transmission beam, wherein the first transmission beam is at least one of the multiple second transmission beams; and send first information based on the measurement results of the multiple second transmission beams, wherein the first information is used to indicate a third transmission beam among the multiple second transmission beams. A network device, comprising: The transceiver module is configured to receive first information, where the first information is sent by the terminal based on the measurement results of multiple second transmission beams, and the first information is used to indicate a third transmission beam among the multiple second transmission beams; the measurement results of the multiple second transmission beams are predicted based on the measurement results of the first transmission beam, and the first transmission beam is at least one of the multiple second transmission beams. A terminal, comprising: one or more processors; The terminal is used to execute the communication method according to any one of claims 1 to 15. A network device, comprising: one or more processors; Wherein, the access network device is used to execute the communication method described in any one of claims 16 to 29. A communication method, performed by a communication system, wherein the communication system includes a terminal and a network device, the method comprising: The terminal predicts, based on the measurement result of the first transmit beam, measurement results of a plurality of second transmit beams, wherein the first transmit beam is at least one of the plurality of second transmit beams; The terminal sends, based on the measurement results of the plurality of second transmit beams, first information, where the first information is used to indicate a third transmit beam among the plurality of second transmit beams; The network device receives the first information. A communication system comprises a terminal and a network device, wherein the communication system is configured to implement the communication method according to claim 34. A storage medium storing instructions, which, when executed on a network device or a terminal, causes the network device or the terminal to execute the communication method according to any one of claims 1 to 29. A computer program product comprises a computer program, wherein when the computer program is executed by a processor, the computer program implements the communication method according to any one of claims 1 to 29.