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

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

[0001] The present disclosure relates to the technical field of communication, and particularly relates to a communication method, a terminal, a network device, a communication system and a storage medium. BACKGROUND

[0002] In a new radio (NR) beam management scenario, a terminal can measure a transmission beam to determine an optimal transmission beam, and report the optimal transmission beam to a network device, and the network device can transmit information to the terminal based on the optimal transmission beam.

[0003] SUMMARY

[0004] In a beam management process, beam reporting and transmission configuration indicator (TCI) state activation delay are performed based on a non-predictive method, and when a predictive method is applied, how to perform beam reporting and TCI state activation delay is a problem to be solved.

[0005] Embodiments of the present disclosure provide a communication method, a terminal, a network device, a communication system and a storage medium.

[0006] According to a first aspect of embodiments of the present disclosure, a communication method is provided, which is performed by a terminal, and the method comprises: predicting measurement results of a plurality of second transmission beams based on a measurement result of a first transmission beam, wherein the first transmission beam is at least one of the plurality of second transmission beams; and transmitting first information based on the measurement results of the plurality of second transmission beams, wherein the first information is used to indicate a third transmission beam in the plurality of second transmission beams.

[0007] According to a second aspect of embodiments of the present disclosure, a communication method is provided, which is performed by a network device, and the method comprises: receiving first information, wherein the first information is transmitted by a terminal based on measurement results of a plurality of second transmission beams, and the first information is used to indicate a third transmission beam in the plurality of second transmission beams; and the measurement results of the plurality of second transmission beams are predicted based on a measurement result of a first transmission beam, and the first transmission beam is at least one of the plurality of second transmission beams.

[0008] According to a third aspect of embodiments of the present disclosure, a terminal is provided, including: a transceiver configured to predict measurement results of a plurality of second transmission beams based on a measurement result of a first transmission beam, wherein the first transmission beam is at least one of the plurality of second transmission beams; and transmit first information based on the measurement results of the plurality of second transmission beams, the first information being used to indicate a third transmission beam of the plurality of second transmission beams.

[0009] According to a fourth aspect of embodiments of the present disclosure, a network device is provided, including: a transceiver configured to receive first information, the first information being transmitted by a terminal based on measurement results of a plurality of second transmission beams, the first information being used to indicate a third transmission beam of the plurality of second transmission beams; the measurement results of the plurality of second transmission beams being predicted based on a measurement result of a first transmission beam, the first transmission beam being at least one of the plurality of second transmission beams.

[0010] According to a fifth aspect of embodiments of the present disclosure, a terminal is provided, including: one or more processors; and wherein the terminal is configured to perform the communication method according to the first aspect.

[0011] According to a sixth aspect of embodiments of the present disclosure, a network device is provided, including: one or more processors; and wherein the network device is configured to perform the communication method according to the second aspect.

[0012] According to a seventh aspect of embodiments of the present disclosure, a communication method is provided, performed by a communication system including a terminal and a network device, including: predicting, by the terminal, measurement results of a plurality of second transmission beams based on a measurement result of a first transmission beam, wherein the first transmission beam is at least one of the plurality of second transmission beams; transmitting, by the terminal, first information based on the measurement results of the plurality of second transmission beams, the first information being used to indicate a third transmission beam of the plurality of second transmission beams; and receiving, by the network device, the first information.

[0013] According to an eighth aspect of embodiments of the present disclosure, a communication system is provided, including a network device and a terminal, and wherein the communication system is configured to implement the communication method according to the seventh aspect.

[0014] According to a ninth aspect of embodiments of the present disclosure, a storage medium is provided, storing instructions, which, when executed on a network device or a terminal, cause the network device or the terminal to perform the communication method according to the first aspect or the second aspect.

[0015] According to a tenth aspect of embodiments of the present disclosure, a computer program product is provided, including a computer program, which, when executed by a processor, implements the communication method according to the first aspect or the second aspect.

[0016] According to a twelfth aspect of the embodiments of the present disclosure, a chip or chip system is provided. The chip or chip system includes processing circuitry. The processing circuitry is configured to perform the communication method according to the first aspect or the second aspect.

[0017] According to a twelfth aspect of the embodiments of the present disclosure, a chip or chip system is provided. The chip or chip system includes processing circuitry. The processing circuitry is configured to perform the communication method according to the first aspect or the second aspect.

[0018] The technical solution provided by the embodiments of the present disclosure can reduce the measurement overhead of the terminal. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following describes the drawings required for the embodiments, and the following drawings are only some embodiments of the present disclosure, and do not specifically limit the protection scope of the present disclosure.

[0020] FIG. 1 is a schematic diagram of an architecture of a communication system according to an embodiment of the present disclosure;

[0021] FIG. 2A is one of exemplary interaction diagrams of a communication method according to an embodiment of the present disclosure;

[0022] FIG. 2B is another of exemplary interaction diagrams of a communication method according to an embodiment of the present disclosure;

[0023] FIG. 2C is a third of exemplary interaction diagrams of a communication method according to an embodiment of the present disclosure;

[0024] FIG. 2D is a fourth of exemplary interaction diagrams of a communication method according to an embodiment of the present disclosure;

[0025] FIG. 3A is a flow diagram of a communication method performed at a terminal side according to an embodiment of the present disclosure;

[0026] FIG. 3B is a flow diagram of a communication method performed at a terminal side according to an embodiment of the present disclosure;

[0027] FIG. 3C is a flow diagram of a communication method performed at a network device side according to an embodiment of the present disclosure;

[0028] FIG. 3D is a flow diagram of a communication method performed at a network device side according to an embodiment of the present disclosure;

[0029] FIG. 4A is a flow diagram of a communication method performed at a terminal side according to an embodiment of the present disclosure;

[0030] FIG. 4B is a third flow diagram illustrating a method for performing communication at a network side according to an embodiment of the present disclosure;

[0031] FIG. 5 is a schematic diagram of a structure of a communication apparatus according to an embodiment of the present disclosure;

[0032] FIG. 6 is a schematic diagram of a structure of a communication apparatus according to an embodiment of the present disclosure;

[0033] FIG. 7 is a schematic diagram of a structure of a chip according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0034] Embodiments of the present disclosure provide a communication method, a terminal, a network device, a communication system and a storage medium.

[0035] In a first aspect, embodiments of the present disclosure provide a communication method performed by a terminal, the method comprising: predicting measurement results of a plurality of second transmission beams based on a measurement result of a first transmission beam, wherein the first transmission beam is at least one of the plurality of second transmission beams; and transmitting first information based on the measurement results of the plurality of second transmission beams, the first information being used to indicate a third transmission beam of the plurality of second transmission beams.

[0036] In embodiments of the present disclosure, the terminal predicts the measurement results of the plurality of second transmission beams based on the measurement result of the transmission beam of at least one of the plurality of second transmission beams, which reduces the measurement overhead of the terminal and reduces the measurement time.

[0037] In some embodiments in combination with the first aspect, in some embodiments, the third transmission beam is a beam corresponding to the first n measurement results of the plurality of second transmission beams in descending order of the measurement results, and n is a positive integer.

[0038] In embodiments of the present disclosure, the terminal reports the third transmission beam to the network device, the third transmission beam is n beams corresponding to the first n measurement results in descending order of the measurement results, and thus the network device can select at least one of the n beams to activate and transmit information, which improves the flexibility of beam management.

[0039] In some embodiments in combination with the first aspect, in some embodiments, the method further comprises: performing a reception beam sweep on the first transmission beam to obtain the measurement result of the first transmission beam.

[0040] In some embodiments in combination with the first aspect, in some embodiments, the measurement result satisfies one or more of the following: the measurement result includes a layer 1 measurement result, and the measurement result includes a reference signal received power.

[0041] In 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 fourth transmission beams, the fourth transmission beams being beams other than the first transmission beams among the second transmission beams.

[0042] In the embodiments of the present disclosure, when the third transmission beam belongs to the first transmission beams, the third transmission beam is determined by measurement. When the third transmission beam belongs to the fourth transmission beams other than the first transmission beams among the second transmission beams, the third transmission beam is determined by prediction, which improves the flexibility of determining the third transmission beam and reduces the measurement overhead of the terminal.

[0043] In some embodiments of the first aspect, in some embodiments, the third transmission beam is a first transmission beam, and a first reception beam associated with the third transmission beam is known; or the third transmission beam is a fourth transmission beam, and a first reception beam associated with the third transmission beam is known or unknown.

[0044] In some embodiments of the first aspect, in some embodiments, the method further includes: sending second information, the second information being used to indicate whether the terminal knows the first reception beam associated with the third transmission beam.

[0045] In the embodiments of the present disclosure, the terminal can further report to the network device whether the terminal knows the first reception beam associated with the third transmission beam, based on which the network device can determine whether to send a reference signal during TCI state activation so as to enable the terminal to perform measurement on the first reception beam.

[0046] In some embodiments of the first aspect, in some embodiments, the method further includes:

[0047] sending third information, the third information being used to indicate a prediction capability of the terminal on the first reception beam associated with the third transmission beam, the prediction capability of the terminal on the first reception beam associated with the third transmission beam being used by the network device to determine whether the terminal knows the first reception beam.

[0048] In the embodiments of the present disclosure, the terminal can further report to the network device the prediction capability of the terminal on the first reception beam, and the network device can determine whether the terminal knows the first reception beam based on the prediction capability of the terminal on the first reception beam, based on which the network device can determine whether to send a reference signal during TCI state activation so as to enable the terminal to perform measurement on the first reception beam.

[0049] In some embodiments of the first aspect, in some embodiments, the prediction capability of the terminal on the first reception beam associated with the third transmission beam includes one of the following: the terminal supports predicting a plurality of reception beams; or the terminal supports predicting part of the plurality of reception beams.

[0050] In the embodiments of the present disclosure, in a case where the terminal supports predicting multiple receive beams, the terminal knows the first receive beam associated with the third transmit beam, and in a case where the terminal supports predicting part of the multiple receive beams, the terminal does not know the first receive beam associated with the third transmit beam.

[0051] With reference to some embodiments of the first aspect, in some embodiments, after transmitting the first information based on the measurement results of the multiple second transmit beams, the method further includes at least one of the following: not performing receive beam sweeping on the time unit in which the first transmission configuration indication (TCI) state is activated; performing receive beam sweeping on the time unit in which the first TCI state is activated; in a case where the first receive beam associated with the third transmit beam is known, not performing receive beam sweeping on the time unit in which the first TCI state is activated; in a case where the first receive beam associated with the third transmit beam is unknown, performing receive beam sweeping on the time unit in which the first TCI state is activated; and wherein the first TCI state is associated with the third transmit beam.

[0052] In the embodiments of the present disclosure, the terminal can not perform receive beam sweeping on the time unit in which the first TCI state is activated, or can not perform receive beam sweeping in a case where the first receive beam is known, that is, the time unit in which the first TCI state is activated does not need to be delayed. The terminal can also perform receive beam sweeping on the time unit in which the first TCI state is activated, or perform receive beam sweeping in a case where the first receive beam is unknown, that is, the time unit in which the first TCI state is activated is delayed, that is, an additional time length for performing receive beam sweeping is added.

[0053] With reference to some embodiments of the first aspect, in some embodiments, the time unit in which the first TCI state is activated includes a first time length, and the first time length is a time length for performing receive beam sweeping.

[0054] With reference to some embodiments of the first aspect, in some embodiments, the first receive beam being known includes at least one of the following: the third transmit beam has been measured; the third transmit beam has been predicted, and the terminal supports predicting multiple 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 known.

[0055] In some embodiments of the first aspect, in some embodiments, the first reception beam known includes at least one of the following: the third transmission beam is at least one of the first transmission beams; the third transmission beam is at least one of the fourth transmission beams, and the terminal supports predicting multiple reception beams; the third transmission beam is at least one of the fourth transmission beams, and the terminal indicates the first reception beam associated with the third transmission beam; and the fourth transmission beam is a beam other than the first transmission beam in the multiple second transmission beams.

[0056] In some embodiments of the first aspect, in some embodiments, the first reception beam unknown includes at least one of the following: the third transmission beam has been predicted, and the terminal supports predicting part of the multiple reception beams; the third transmission beam has been predicted, and the terminal indicates the first reception beam associated with the third transmission beam unknown.

[0057] In some embodiments of the first aspect, in some embodiments, the first reception beam unknown includes at least one of the following: the third transmission beam is at least one of the fourth transmission beams, and the terminal supports predicting part of the multiple reception beams; the third transmission beam is at least one of the fourth transmission beams, and the terminal indicates the first reception beam associated with the third transmission beam unknown; and the fourth transmission beam is a beam other than the first transmission beam in the multiple second transmission beams.

[0058] In a second aspect, the embodiments of the present disclosure provide a communication method, performed by a network device, the method comprising: receiving first information, the first information being sent by a terminal based on measurement results of multiple second transmission beams, the first information being used to indicate a third transmission beam in the multiple second transmission beams; the measurement results of the multiple second transmission beams being obtained based on measurement results of a first transmission beam, the first transmission beam being at least one of the multiple second transmission beams.

[0059] In some embodiments of the second aspect, in some embodiments, the third transmission beam is a beam corresponding to the first n measurement results from large to small in the measurement results of the multiple second transmission beams, n being a positive integer.

[0060] In some embodiments of the second aspect, in some embodiments, the measurement result of the first transmission beam is obtained by performing reception beam sweeping on the first transmission beam.

[0061] In 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 a reference signal received power.

[0062] In 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, the fourth transmission beams being beams other than the first transmission beams among the second transmission beams.

[0063] In some embodiments of the second aspect, in some embodiments, the third transmission beam is at least one of the first transmission beams, and the first reception beam associated with the third transmission beam is known; or the third transmission beam is at least one of the fourth transmission beams, and the first reception beam associated with the third transmission beam is known or unknown.

[0064] In some embodiments of the second aspect, in some embodiments, the method further comprises: receiving second information, the second information being used to indicate whether the terminal knows the first reception beam associated with the third transmission beam.

[0065] In some embodiments of the second aspect, in some embodiments, the method further comprises: receiving third information, the third information being used to indicate a prediction capability of the terminal for the first reception beam associated with the third transmission beam, the prediction capability of the terminal for the first reception beam associated with the third transmission beam being used by the network device to determine whether the terminal knows the first reception beam.

[0066] The prediction capability of the terminal for the first reception beam associated with the third transmission beam comprises one of: the terminal supporting predicting a plurality of reception beams; and the terminal supporting predicting part of the plurality of reception beams.

[0067] In some embodiments of the second aspect, in some embodiments, the method further comprises at least one of: not transmitting a reference signal; transmitting a reference signal; not transmitting the reference signal in a case where the first reception beam associated with the third transmission beam is known; and transmitting the reference signal in a case where the first reception beam associated with the third transmission beam is unknown; wherein the reference signal is used by the terminal to perform reception beam sweeping in a time unit in which the first TCI state is activated.

[0068] In some embodiments of the second aspect, in some embodiments, the time unit in which the first TCI state is activated comprises a first time length, the first time length being a time length for performing the reception beam sweeping.

[0069] In some embodiments of the second aspect, in some embodiments, the first reception beam being known comprises at least one of: the third transmission beam having been measured; the third transmission beam having been predicted and the terminal supporting predicting a plurality of reception beams; and the third transmission beam having been predicted and the terminal indicating that the first reception beam associated with the third transmission beam is known.

[0070] In some embodiments of the second aspect, in some embodiments, the first reception beam known comprises at least one of the following: the third transmission beam is at least one of the first transmission beams; the third transmission beam is at least one of the fourth transmission beams, and the terminal supports performing reception beam sweeping with multiple reception beams; the third transmission beam is at least one of the fourth transmission beams, and the terminal indicates the first reception beam associated with the third transmission beam; the fourth transmission beam is a beam other than the first transmission beam in the multiple second transmission beams.

[0071] In some embodiments of the second aspect, in some embodiments, the first reception beam unknown comprises at least one of the following: the third transmission beam has been predicted, and the terminal supports predicting part of the multiple reception beams; the third transmission beam has been predicted, and the terminal indicates the first reception beam associated with the third transmission beam.

[0072] In some embodiments of the second aspect, in some embodiments, the first reception beam unknown comprises at least one of the following: the third transmission beam is at least one of the fourth transmission beams, and the terminal supports predicting part of the multiple reception beams; the third transmission beam is at least one of the fourth transmission beams, and the terminal indicates the first reception beam associated with the third transmission beam; the fourth transmission beam is a beam other than the first transmission beam in the multiple second transmission beams.

[0073] In a third aspect, the embodiments of the present disclosure provide a terminal, comprising: a transceiver configured to predict measurement results of multiple second transmission beams based on measurement results of first transmission beams, wherein the first transmission beams are at least one of the multiple second transmission beams; and transmit first information based on the measurement results of the multiple second transmission beams, the first information being used to indicate third transmission beams in the multiple second transmission beams.

[0074] In some embodiments of the third aspect, in some embodiments, the third transmission beam is a beam corresponding to the first n measurement results from large to small in the multiple second transmission beams, n being a positive integer.

[0075] In some embodiments of the third aspect, in some embodiments, the transceiver is configured to perform reception beam sweeping on the first transmission beams to obtain the measurement results of the first transmission beams.

[0076] In some embodiments of the third aspect, in some embodiments, the measurement results satisfy one or more of the following: the measurement results comprise measurement results of layer 1 measurement, and the measurement results comprise reference signal received power.

[0077] In 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, the fourth transmission beams being beams other than the first transmission beams among the second transmission beams.

[0078] In some embodiments of the third aspect, in some embodiments, the third transmission beam is at least one of the first transmission beams, and the first reception beam associated with the third transmission beam is known; or the third transmission beam is at least one of the fourth transmission beams, and the first reception beam associated with the third transmission beam is known or unknown.

[0079] In some embodiments of the third aspect, in some embodiments, the transceiver is configured to transmit second information, the second information being used to indicate whether the terminal knows the first reception beam associated with the third transmission beam.

[0080] In some embodiments of the third aspect, in some embodiments, the transceiver is configured to transmit third information, the third information being used to indicate a prediction capability of the terminal for the first reception beam associated with the third transmission beam, the prediction capability of the terminal for the first reception beam associated with the third transmission beam being used by the network device to determine whether the terminal knows the first reception beam.

[0081] In some embodiments of the third aspect, in some embodiments, the prediction capability of the terminal for the first reception beam associated with the third transmission beam comprises one of: the terminal supports predicting a plurality of reception beams; the terminal supports predicting part of the plurality of reception beams.

[0082] In some embodiments of the third aspect, in some embodiments, the transceiver is configured to perform at least one of: not performing reception beam sweeping in a time unit in which a first transmission configuration indication (TCI) state is activated; performing reception beam sweeping in the time unit in which the first TCI state is activated; not performing reception beam sweeping in the time unit in which the first TCI state is activated in a case that the first reception beam associated with the third transmission beam is known; performing reception beam sweeping in the time unit in which the first TCI state is activated in a case that the first reception beam associated with the third transmission beam is unknown; wherein the first TCI state is associated with the third transmission beam.

[0083] In some embodiments of the third aspect, in some embodiments, the time unit in which the first TCI state is activated comprises a first time length, the first time length being a time length for performing reception beam sweeping.

[0084] In some embodiments of the third aspect, in some embodiments, the first reception beam known includes at least one of the following: the third transmission beam has been measured; the third transmission beam has been predicted, and the terminal supports predicting multiple reception beams; the third transmission beam has been predicted, and the terminal indicates the first reception beam associated with the third transmission beam is known.

[0085] In some embodiments of the third aspect, in some embodiments, the first reception beam known includes at least one of the following: the third transmission beam is at least one of the first transmission beams; the third transmission beam is at least one of fourth transmission beams, and the terminal supports predicting multiple reception beams; the third transmission beam is at least one of the fourth transmission beams, and the terminal indicates the first reception beam associated with the third transmission beam is known; wherein the fourth transmission beam is a beam other than the first transmission beam in the multiple second transmission beams.

[0086] In some embodiments of the third aspect, in some embodiments, the first reception beam unknown includes at least one of the following: the third transmission beam has been predicted, and the terminal supports predicting part of multiple reception beams; the third transmission beam has been predicted, and the terminal indicates the first reception beam associated with the third transmission beam is unknown.

[0087] In some embodiments of the third aspect, in some embodiments, the first reception beam unknown includes at least one of the following: the third transmission beam is at least one of the fourth transmission beams, and the terminal supports predicting part of multiple reception beams; the third transmission beam is at least one of the fourth transmission beams, and the terminal indicates the first reception beam associated with the third transmission beam is unknown; wherein the fourth transmission beam is a beam other than the first transmission beam in the multiple second transmission beams.

[0088] In the fourth aspect, the embodiments of the present disclosure provide a network device, comprising: a transceiver module configured to receive first information, the first information being sent by a terminal based on a measurement result of multiple second transmission beams, the first information being used to indicate a third transmission beam in the multiple second transmission beams; the measurement result of the multiple second transmission beams being obtained based on a measurement result of a first transmission beam, the first transmission beam being at least one of the multiple second transmission beams.

[0089] In some embodiments of the fourth aspect, in some embodiments, the third transmission beam is a beam corresponding to a top n measurement result in descending order of the measurement results of the multiple second transmission beams, n being a positive integer.

[0090] In some embodiments of the fourth aspect, in some embodiments, the measurement result of the first transmission beam is obtained by performing reception beam sweeping on the first transmission beam.

[0091] In some embodiments combining with the fourth aspect, in some embodiments, the measurement result satisfies one or more of the following: the measurement result comprises a layer 1 measurement result; the measurement result comprises a reference signal received power.

[0092] In some embodiments combining with 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 fourth transmission beams, the fourth transmission beams being beams other than the first transmission beams among the second transmission beams.

[0093] In some embodiments combining with the fourth aspect, in some embodiments, the third transmission beam is at least one of the first transmission beams, and the first reception beam associated with the third transmission beam is known; or the third transmission beam is at least one of the fourth transmission beams, and the first reception beam associated with the third transmission beam is known or unknown.

[0094] In some embodiments combining with the fourth aspect, in some embodiments, the transceiver is configured to receive second information, the second information being used to indicate whether the terminal knows the first reception beam associated with the third transmission beam.

[0095] In some embodiments combining with the fourth aspect, in some embodiments, the transceiver is configured to receive third information, the third information being used to indicate a prediction capability of the terminal for the first reception beam associated with the third transmission beam, the prediction capability of the terminal for the first reception beam associated with the third transmission beam being used by the network device to determine whether the terminal knows the first reception beam.

[0096] In some embodiments combining with the fourth aspect, in some embodiments, the capability of the terminal for the reception beam sweeping comprises one of the following: the terminal supports predicting a plurality of reception beams; the terminal supports predicting part of the plurality of reception beams.

[0097] In some embodiments combining with the fourth aspect, in some embodiments, the transceiver is configured to at least one of the following: not transmit a reference signal; transmit the reference signal; not transmit the reference signal in a case where the first reception beam associated with the third transmission beam is known; transmit the reference signal in a case where the first reception beam associated with the third transmission beam is unknown; wherein the reference signal is used by the terminal to perform the reception beam sweeping on a time unit in which a first transmission configuration indication, TCI, state is activated.

[0098] In some embodiments combining with the fourth aspect, in some embodiments, the time unit in which the first TCI state is activated comprises a first time length, the first time length being a time length for performing the reception beam sweeping.

[0099] In some embodiments of the fourth aspect, in some embodiments, the first reception beam known comprises at least one of the following: the third transmission beam has been measured; the third transmission beam has been predicted and the terminal supports predicting multiple reception beams; the third transmission beam has been predicted and the terminal indicates the first reception beam associated with the third transmission beam is known.

[0100] In some embodiments of the fourth aspect, in some embodiments, the first reception beam known comprises at least one of the following: the third transmission beam is at least one of the first transmission beams; the third transmission beam is at least one of the fourth transmission beams and the terminal supports predicting multiple reception beams; the third transmission beam is at least one of the fourth transmission beams and the terminal indicates the first reception beam associated with the third transmission beam is known; wherein the fourth transmission beam is a beam other than the first transmission beams among the multiple second transmission beams.

[0101] In some embodiments of the fourth aspect, in some embodiments, the first reception beam unknown comprises at least one of the following: the third transmission beam has been predicted and the terminal supports predicting part of multiple reception beams; the third transmission beam has been predicted and the terminal indicates the first reception beam associated with the third transmission beam is unknown.

[0102] In some embodiments of the fourth aspect, in some embodiments, the first reception beam unknown comprises at least one of the following: the third transmission beam is at least one of the fourth transmission beams and the terminal supports predicting part of multiple reception beams; the third transmission beam is at least one of the fourth transmission beams and the terminal indicates the first reception beam associated with the third transmission beam is unknown; wherein the fourth transmission beam is a beam other than the first transmission beams among the multiple second transmission beams.

[0103] In the fifth aspect, the embodiments of the present disclosure provide a terminal, comprising: one or more processors; wherein the terminal is configured to perform the communication method of the first aspect.

[0104] In the sixth aspect, the embodiments of the present disclosure provide a network device, comprising: one or more processors; wherein the network device is configured to perform the communication method of the second aspect.

[0105] In the seventh aspect, the embodiments of the present disclosure provide a communication method, performed by a communication system comprising a terminal and a network device, the communication method comprising: predicting, by the terminal, measurement results of multiple second transmission beams based on a measurement result of a first transmission beam, wherein the first transmission beam is at least one of the multiple second transmission beams; transmitting, by the terminal, 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 receiving, by the network device, the first information.

[0106] In an eighth aspect, an embodiment of the present disclosure provides a communication system, comprising: a terminal and a network device; wherein the communication system is configured to perform the method described in the optional implementation manner of the seventh aspect.

[0107] In a ninth aspect, an embodiment of the present disclosure provides a storage medium, which stores instructions, when the instructions are executed on a terminal or an access network device, the terminal or the network device performs the method described in the optional implementation manner of the first aspect or the second aspect.

[0108] In a tenth aspect, an embodiment of the present disclosure provides a program product, when the program product is executed by a terminal or an access network device, the terminal or the network device performs the method described in the optional implementation manner of the first aspect or the second aspect.

[0109] In an eleventh aspect, an embodiment of the present disclosure provides a computer program, when the computer program is executed on a computer, the computer performs the method described in the optional implementation manner of the first aspect or the second aspect.

[0110] In a twelfth aspect, an embodiment of the present disclosure provides a chip or a chip system. The chip or the chip system comprises processing circuitry configured to perform the method described in the optional implementation manner of the first aspect or the second aspect.

[0111] It can be understood that the network device, the terminal, the communication system, the storage medium, the program product, the computer program, the chip or the chip system are all used to perform the method proposed in the embodiments of the present disclosure. Therefore, the beneficial effects that can be achieved are referred to the beneficial effects in the corresponding method, which will not be described here.

[0112] The embodiments of the present disclosure propose a communication method, a terminal, a network device, a communication system and a storage medium. In some embodiments, the communication method and the information transmission method, the information processing method, the beam reporting method and other terms can be replaced with each other, and the information processing system and the communication system can be replaced with each other.

[0113] The embodiments of the present disclosure are not exhaustive, but only illustrate some embodiments, and are not specific limitations on the protection scope of the present disclosure. In the case of no contradiction, each step in an embodiment can be implemented as an independent embodiment, and the steps can be combined arbitrarily, for example, the scheme after removing some steps in an embodiment can also be implemented as an independent embodiment, and the order of the steps in an embodiment can be exchanged arbitrarily, in addition, the optional implementation manners in an embodiment can be combined arbitrarily; in addition, the embodiments can be combined arbitrarily, for example, the steps of different embodiments or parts of different embodiments can be combined arbitrarily, an embodiment can be combined with the optional implementation manners of other embodiments.

[0114] In each embodiment of the present disclosure, the terms and / or descriptions between the embodiments are consistent if there is no special description and logical conflict, and can be referred to each other, and the technical features in different embodiments can be combined to form new embodiments according to their inherent logical relationship.

[0115] The terms used in the embodiments of the present disclosure are only for the purpose of describing specific embodiments and not as a limitation of the present disclosure.

[0116] In the embodiments of the present disclosure, unless otherwise specified, the elements expressed in singular form, such as "one", "one", "the", "above", "above", "above", "this", etc. can represent "one and only one", and can also represent "one or more", "at least one", etc. For example, in the case of using articles such as "a", "an", "the" in English, the noun after the article can be understood as singular expression, and can also be understood as plural expression.

[0117] In the embodiments of the present disclosure, "plurality" refers to two or more.

[0118] In some embodiments, the terms "at least one of", "one or more", "a plurality of", "multiple", and the like can be replaced with each other.

[0119] In some embodiments, the writing manner of "at least one of A, B", "A and / or B", "A in one case, B in another case", "responding to a case A, responding to another case B", and the like can include the following technical solutions according to the case: in some embodiments A (A is executed regardless of B); in some embodiments B (B is executed regardless of A); in some embodiments, A and B are selected to be executed (A and B are selectively executed); in some embodiments, A and B (A and B are executed). When there are more branches of A, B, C, etc., it is similar to the above.

[0120] In some embodiments, the writing manner of "A or B" and the like can include the following technical solutions according to the case: in some embodiments A (A is executed regardless of B); in some embodiments B (B is executed regardless of A); in some embodiments, A and B are selected to be executed (A and B are selectively executed). When there are more branches of A, B, C, etc., it is similar to the above.

[0121] The prefix words of "first", "second" and the like in the embodiments of the present disclosure are merely used to distinguish different description objects, and do not constitute limitation on the position, order, priority, quantity or content of the description objects. The description objects are described in the claims or embodiments, and should not be construed as redundant limitation because of the use of the prefix words. For example, the description object is "field", and the ordinal words before "field" in "first field" and "second field" do not limit the position or order between "fields", and "first" and "second" do not limit whether the "fields" modified thereby are in the same message or not, nor limit the order of "first field" and "second field". For another example, the description object is "level", and the ordinal words before "level" in "first level" and "second level" do not limit the priority between "levels". For another example, the quantity of the description object is not limited by the ordinal words, and can be one or more. For example, "first device", wherein the quantity of "device" can be one or more. In addition, the objects modified by different prefix words can be the same or different, for example, the description object is "device", and "first device" and "second device" can be the same device or different devices, and the types thereof can be the same or different. For another example, the description object is "information", and "first information" and "second information" can be the same information or different information, and the contents thereof can be the same or different.

[0122] In some embodiments, "including A", "containing A", "for indicating A", "carrying A" can be interpreted as directly carrying A, or indirectly indicating A.

[0123] In some embodiments, the terms of "in response to", "in response to determining", "in the case of", "when", "when", "if", "if" and the like can be replaced with each other.

[0124] In some embodiments, the terms of "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 lower than", "above" and the like can be replaced with each other, and the terms of "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", "below" and the like can be replaced with each other.

[0125] In some embodiments, an apparatus or the like can be interpreted as an entity, and can also be interpreted as virtual, and the name thereof is not limited to the name described in the embodiments. The terms "apparatus", "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", "subject" and the like can be replaced with each other.

[0126] In some embodiments, a "network" can be interpreted as an apparatus (for example, an access network device, a core network device, and the like) included in the network.

[0127] In some embodiments, the terms "network device", "access network device (AN device)", "radio access network device (RAN device)", "base station (BS)", "radio base station", "fixed station", "node", "access network node", "access point", "transmission point (TP)", "reception point (RP)", "transmission / reception point (TRP)", "panel", "antenna panel", "antenna array", "cell", "macro cell", "small cell", "femtocell", "picocell", "sector", "cell group", "serving cell", "carrier", "component carrier", "bandwidth part (BWP)" and the like can be replaced with each other.

[0128] 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," and so on can be replaced with each other.

[0129] In some embodiments, the access network device, the core network device, or the network device can be replaced with a terminal. For example, the embodiments of the present disclosure can also be applied to a structure in which communication between the access network device, the core network device, or the network device and the terminal is replaced with communication between a plurality of terminals (e.g., device-to-device (D2D), vehicle-to-everything (V2X), etc.). In this case, the terminal can also be configured to have all or part of the functions of the access network device. In addition, the terms "uplink," "downlink," and the like can also be replaced with terms corresponding to the inter-terminal communication (e.g., "side"). For example, the uplink channel, the downlink channel, and the like can be replaced with the side channel, and the uplink, the downlink, and the like can be replaced with the sidelink.

[0130] In some embodiments, the terminal can be replaced with the access network device, the core network device, or the network device. In this case, the access network device, the core network device, or the network device can also be configured to have all or part of the functions of the terminal.

[0131] In some embodiments, the data, information, etc. can be obtained in compliance with the laws and regulations of the country where the location is situated.

[0132] In some embodiments, the data, information, etc. can be obtained after obtaining the consent of the user.

[0133] In addition, each element, each row, or each column in the table of the embodiments of the present disclosure can be implemented as an independent embodiment, and any combination of any element, any row, or any column can also be implemented as an independent embodiment.

[0134] [Corrected according to Rule 91 on 24.04.2024] FIG. 1 is an architecture schematic diagram of a communication system according to an embodiment of the present disclosure. As shown in FIG. 1, the communication system 100 includes a terminal 101 and a network device 102.

[0135] In some embodiments, the terminal 101 includes at least one of a mobile phone, a wearable device, an Internet of Things device, a communication-capable automobile, a smart automobile, a Pad, 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 smart grid, a wireless terminal device in transportation safety, a wireless terminal device in smart city, a wireless terminal device in smart home, etc., but is not limited thereto.

[0136] In some embodiments, the terminal is also referred to as a user equipment (UE).

[0137] In some embodiments, the network device 102 can include an access network device and / or a core network device. The access network device is, for example, a node or device that accesses a terminal to a wireless network, and can include at least one of an evolved NodeB (eNB), a next generation eNB (ng-eNB), a next generation NodeB (gNB), a node B (NB), a home node B (HNB), a home evolved node B (HeNB), a wireless backhaul device, a radio network controller (RNC), a base station controller (BSC), a base transceiver station (BTS), a base band 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, an access node in a Wi-Fi system, but is not limited thereto.

[0138] In some embodiments, the technical solutions of the embodiments of the present disclosure can be applied to an Open RAN architecture, at this time, the interfaces between or within the access network devices involved in the embodiments of the present disclosure can become internal interfaces of the Open RAN, and the processes and information interactions between these internal interfaces can be realized by software or programs.

[0139] In some embodiments, the access network device can be composed of a central unit (CU) and a distributed unit (DU), wherein the CU can also be referred to as a control unit. The CU-DU structure can split the protocol layers of the access network device, and the functions of part of the protocol layers are controlled by the CU, and the functions of the remaining part or all of the protocol layers are distributed in the DU and controlled by the CU, but are not limited thereto.

[0140] In some embodiments, the core network device can be one device including the first network element, etc., or can be multiple devices or device groups each including the first network element. The network element can be virtual or physical. The core network includes at least one of an evolved packet core (EPC), a 5G core network (5GCN), and a next generation core (NGC), for example.

[0141] It can be understood that the communication system described in the embodiments of the present disclosure is for more clearly illustrating the technical solutions of the embodiments of the present disclosure, and does not constitute a limitation on the technical solutions provided by the embodiments of the present disclosure. It can be known by those skilled in the art that, as the system architecture evolves and new business scenarios appear, the technical solutions provided by the embodiments of the present disclosure are also applicable to similar technical problems.

[0142] [According to Rule 91, corrected on 24.04.2024] The embodiments of the present disclosure described below can be applied to the communication system 100 shown in FIG. 1, or part of the subject, but are not limited thereto. The subjects shown in FIG. 1 are exemplary, and the communication system can include all or part of the subjects in FIG. 1, or other subjects other than FIG. 1. The number and form of each subject is arbitrary, and the connection relationship between each subject is exemplary. Each subject can be connected or not connected, and the connection can be in any way, can be direct connection or indirect connection, can be wired connection or wireless connection.

[0143] 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, 4th generation mobile communication system (4G), 5th 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 (FX), Global System for Mobile communications (GSM (registered trademark)), CDMA2000, ultra mobile broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, ultra-wideband (UWB), Bluetooth (Bluetooth (registered trademark)), public land mobile network (PLMN) network, device-to-device (D2D) system, machine to machine (M2M) system, Internet of Things (IoT) system, vehicle-to-everything (V2X), system using other communication methods, next-generation system expanded based on them, and the like. Further, a plurality of systems can be combined (for example, combination of LTE or LTE-A and 5G, and the like).

[0144] The beam management procedure related to the embodiments of the present application is described below.

[0145] Beam management refers to a process in which a network device and a terminal acquire and maintain a set of beams for transmission and reception. In downlink transmission, the beam used by the network device is referred to as a downlink transmission beam, and the beam used by the terminal is referred to as a downlink reception beam. In uplink transmission, the beam used by the terminal is referred to as an uplink transmission beam, and the beam used by the network device is referred to as an uplink reception beam. In downlink transmission and uplink transmission, what beam is specifically used by the network device and the terminal can be determined through a beam management process.

[0146] In some embodiments, the beam management process includes the following operations:

[0147] (1) Beam sweeping: a process in which a network device or a terminal sequentially selects a beam for transmission or reception in a specified sweeping manner within a time period, thereby covering a spatial region.

[0148] (2) Beam measurement: a process in which a network device or a terminal measures a received beamformed signal.

[0149] (3) Beam reporting: a process in which a terminal reports a beam measurement result to a network device.

[0150] (4) Beam selection: a process in which a network device or a terminal selects a transmission or reception beam thereof according to a measurement result.

[0151] In some embodiments, beam management includes the following three states:

[0152] P1 state: a terminal measures a set of beams transmitted by a network device, and selects a transmission beam of the network device and a reception beam of the terminal.

[0153] P2 state: on the basis of the above P1, a terminal measures a set of narrower transmission beams transmitted by a network device, and improves a transmission beam of the network device.

[0154] P3 state: on the basis of P1, a terminal measures a transmission beam of the same network device using different reception beams, and improves a reception beam of the terminal itself.

[0155] In the beam management process, beam reporting and TCI state activation delay are performed based on a measurement method, and when a prediction-based method is applied, how to perform beam reporting and TCI state activation delay is a problem to be solved urgently.

[0156] Therefore, in the embodiments of the present disclosure, the terminal selects at least one transmission beam (such as a first transmission beam) from a plurality of transmission beams (such as a second transmission beam) to perform measurement, predicts measurement results of a plurality of 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 plurality of second transmission beams, the first information being used to indicate a third transmission beam in the plurality of second transmission beams.

[0157] In some embodiments, the plurality of second transmission beams constitute a beam set A, and the beam set A can be configured by the network device.

[0158] In some embodiments, the at least one first transmission beam constitutes a beam set B, and the beam set B is a subset of the beam set A.

[0159] In some embodiments, the third transmission beam is a beam corresponding to the top n measurement results from large to small of the measurement results of each transmission beam in the beam set A, and n is a positive integer. Therefore, the third transmission beam can be understood as the best transmission beam.

[0160] In some embodiments, the first reception beam associated with the best transmission beam can be understood as the best reception beam. In the case of one best transmission beam, one best transmission beam is associated with one best reception beam. In the case of multiple best transmission beams, multiple best transmission beams are associated with multiple best reception beams.

[0161] In some embodiments, the other transmission beams in the beam set A except the beam set B are fourth transmission beams, the fourth transmission beams constitute a beam set C, and the union of the beam set B and the beam set C is the beam set A.

[0162] In some embodiments, in the case of one best transmission beam, the first information is used to indicate one best transmission beam, and at this time, the best transmission beam has two cases. Case one, the best transmission beam is one transmission beam in the beam set B. Case two, the best transmission beam is one transmission beam in the beam set C.

[0163] In some embodiments, in the case of multiple best transmission beams, the first information is used to indicate multiple best transmission beams, and at this time, the best transmission beam has three cases. Case one, the multiple best transmission beams are all transmission beams in the beam set B. Case two, the multiple best transmission beams are all transmission beams in the beam set C. Case three, part of the multiple best transmission beams are transmission beams in the beam set B, and the other part are transmission beams in the beam set C.

[0164] In some embodiments, in the case that the best transmission beam is a transmission beam in the beam set B, since the terminal adopts multiple reception beams, a spatial scan is performed on each transmission beam in the beam set B, that is, the best transmission beam is determined by measurement, and therefore the terminal knows the best reception beam associated with the best transmission beam.

[0165] In some embodiments, in the case that the best transmission beam is a transmission beam in the beam set C, since the terminal performs prediction of the measurement result on the beam set C, that is, the best transmission beam is determined by prediction, therefore the terminal can not know the best reception beam associated with the best transmission beam, or the terminal can know the best reception beam associated with the best transmission beam.

[0166] In some embodiments, in the case that the best transmission beam is a transmission beam in the beam set C, the terminal can determine whether to know the best reception beam associated with the best transmission beam based on its own capability or protocol agreement.

[0167] In some embodiments, in the case that all the best transmission beams are transmission beams in the beam set B, the terminal knows all the best reception beams associated with the best transmission beams, and therefore the terminal does not perform reception beam scanning on the time unit when the first TCI state is activated.

[0168] In some embodiments, in the case that at least one of the best transmission beams is a transmission beam in the beam set C, the terminal can know or can not know the best reception beam associated with the best transmission beam, and therefore the terminal does not perform or performs reception beam scanning on the time unit when the first TCI state is activated.

[0169] FIG. 2A is one of the exemplary interaction diagrams of the communication method according to the embodiments of the present disclosure. As shown in FIG. 2A, the embodiments of the present disclosure relate to a communication method. The communication method is performed by the communication system 100, and includes steps S2101 to S2110.

[0170] In the embodiments of the present disclosure, at least one of the best transmission beams is a transmission beam in the beam set C.

[0171] In some embodiments, all the best transmission beams are transmission beams in the beam set C.

[0172] In some embodiments, part of the best transmission beams are transmission beams in the beam set B, and part of the best transmission beams are transmission beams in the beam set C.

[0173] In step S2101, the terminal transmits third information.

[0174] In some embodiments, the network device receives the third information.

[0175] In some embodiments, the third information is used to indicate a prediction capability of the terminal on the best receive beam associated with the best transmit beam.

[0176] In some embodiments, the third information can be carried in a radio resource control (RRC) message. In an example, the third information can be carried in a terminal capability information, e.g., RRC UE Capability Information.

[0177] In some embodiments, based on the third information, the network device can determine whether the terminal knows the best receive beam, so that the network device can determine whether to subsequently send a reference signal, whether the terminal will perform a receive beam sweep on a time unit in which the TCI state is activated, and whether the time unit in which the TCI state is activated is extended, so that the network device and the terminal reach a unified understanding of the activation duration.

[0178] In some embodiments, the prediction capability of the terminal on the best receive beam associated with the best transmit beam includes one of: the terminal supports predicting multiple receive beams (denoted as capability one), and the terminal supports predicting part of the multiple receive beams (denoted as capability two).

[0179] In some embodiments, in the case of capability one supported by the terminal, the terminal knows the best receive beam associated with the best transmit beam. In the case of capability two supported by the terminal, the terminal does not know the best receive beam associated with the best transmit beam.

[0180] In some embodiments, capability one can be understood as the terminal supporting predicting all receive beams. Capability one can also be understood as the terminal supporting predicting the best transmit beam and the best receive beam associated with the best transmit beam, where the best transmit beam is a transmit beam that produces the top n measurement results in descending order of measurement results on all transmit beam and receive beam pairs. In an example, the best transmit beam is a transmit beam that produces the maximum layer 1 reference signal receive power on all transmit beam and receive beam pairs.

[0181] In some embodiments, capability two can be understood as the terminal supporting predicting a specific receive beam. Capability two can also be understood as the terminal supporting predicting the best transmit beam with the specific receive beam, where the best transmit beam is a transmit beam that produces the top n measurement results in descending order of measurement results on all transmit beams with the specific receive beam. In an example, the third transmit beam is a transmit beam that produces the maximum layer 1 reference signal receive power on all transmit beams with the specific receive beam.

[0182] In some embodiments, the prediction capability of the terminal for the best receive beam associated with the best transmit beam is associated with a prediction model. The prediction model includes a first prediction model and a second prediction model.

[0183] In some embodiments, the first prediction model is associated with capability one, and 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.

[0184] In some embodiments, the second prediction model is associated with capability two. The second prediction model supports predicting specific receive beams, or in other words, the second prediction model supports predicting the best transmit beam with specific receive beams.

[0185] In some embodiments, the terminal supporting capability one can be understood as the terminal supporting the first prediction model, and the terminal supporting capability two can be understood as the terminal supporting the second prediction model.

[0186] In some embodiments, step S2101 can be performed at any time after step S2102.

[0187] In step S2102, the terminal performs measurement on each transmit beam in the beam set B to obtain measurement results B.

[0188] In some embodiments, the terminal performs spatial scanning on each transmit beam in the beam set B using multiple receive beams to obtain measurement results B.

[0189] In some embodiments, the measurement results B are measurement results of layer 1 (denoted as L1) measurement. In some embodiments, the measurement results B include one of the following: reference signal received quality (RSRQ), signal to interference plus noise ratio (SINR), and reference signal received power (RSRP).

[0190] In an example, the measurement results B include L1-RSRP of each transmit beam in the beam set B.

[0191] In step S2103, the terminal predicts the measurement results of each transmit beam in the beam set A based on the measurement results B to obtain measurement results A.

[0192] In some embodiments, the terminal inputs the measurement results B into the prediction model to obtain the measurement results A.

[0193] In some embodiments, the measurement result A is a measurement result of L1 measurement. In some embodiments, the measurement result A is RSRP.

[0194] In an example, the measurement result A includes L1-RSRP of each transmission beam in the beam set A, so that the measurement result of the beam set A is predicted by the measurement result of the subset of the beam set A, saving measurement overhead and measurement time.

[0195] In some embodiments, the prediction model can be an artificial intelligence (AI) model / machine learning (ML) model.

[0196] In some embodiments, in the case of terminal supporting capability one, the terminal supports the first prediction model, and the terminal can input the measurement result B into the first prediction model to obtain the measurement result A. At this time, the first prediction model can also predict all receiving beams.

[0197] In some embodiments, in the case of terminal supporting capability two, the terminal supports the second prediction model, and the terminal can input the measurement result B into the second prediction model to obtain the measurement result A. At this time, the first prediction model can also predict specific receiving beams.

[0198] In step S2104, the terminal determines the first information based on the measurement result A.

[0199] 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.

[0200] In some embodiments, the terminal arranges the measurement result of each transmission beam in the measurement result A from large to small, and selects the transmission beam corresponding to the first n measurement results as the best transmission beam.

[0201] In an example, the terminal arranges the L1-RSRP of each transmission beam in the measurement result A from large to small, and selects the transmission beam corresponding to the first 8 L1-RSRP as the best transmission beam.

[0202] In an embodiment, the value of n can be determined based on protocol agreement, and can also be determined based on network indication.

[0203] In an example, the protocol agreement is n=8. In an example, the protocol agreement is that n is the number of measurement results greater than a first threshold in the measurement result.

[0204] In step S2105, the terminal sends the first information.

[0205] In some embodiments, the network device receives the first information.

[0206] In some embodiments, the first information can be an index of the best transmission beam.

[0207] In some embodiments, at least one of the best transmission beams indicated by the first information is a transmission beam in the beam set C.

[0208] In step S2106, the terminal transmits second information.

[0209] In some embodiments, the network device receives the second information.

[0210] In some embodiments, the second information is used to indicate whether the terminal knows the best reception beam associated with the best transmission beam.

[0211] In some embodiments, in the case that the terminal knows the best reception beam associated with the best transmission beam, the second information indicates that the terminal knows the best reception beam.

[0212] In some embodiments, in the case that the terminal supports the first capability, the second information indicates that the terminal knows the best reception beam associated with the best transmission beam.

[0213] In some embodiments, in the case that the terminal does not know the best reception beam associated with the best transmission beam, the second information indicates that the terminal does not know the best reception beam associated with the best transmission beam.

[0214] In some embodiments, in the case that the terminal supports the second capability, the second information indicates that the terminal does not know the best reception beam associated with the best transmission beam.

[0215] In some embodiments, the second information and the first information can be transmitted in the same message, for example, the terminal transmits a measurement report, and the measurement report includes the first information and the second information. The second information and the first information can also be transmitted in different messages, the second information and the first information can also be carried and transmitted simultaneously in different messages, and the second information and the first information can also be carried and transmitted in different messages in sequence.

[0216] In some embodiments, the second information and the third information can be transmitted alternatively, that is, step S2101 and step S2106 can be executed alternatively.

[0217] In some embodiments, the execution order of step S2106 and step S2107 can be exchanged.

[0218] In step S2107, the network device transmits a first command.

[0219] In some embodiments, the terminal receives the first command.

[0220] In some embodiments, the first command is used to activate at least one first TCI state.

[0221] In some embodiments, the first command can be any command capable of activating the first TCI state. In an example, the first command can include, but is not limited to, a media access control-control element (MAC-CE).

[0222] In some embodiments, the at least one first TCI state is associated with at least one transmission beam X.

[0223] In some embodiments, the transmission beam X can be a beam in the best transmission beam or a transmission beam other than the best transmission beam in the beam set A. That is, the network device can select the activated transmission beam X from the best transmission beam reported by the terminal, or directly indicate the transmission beam X to be activated.

[0224] In some embodiments, if the transmission beam X is a beam in the best transmission beam, and at least one of the transmission beam X is a transmission beam in the beam set C, the following cases exist:

[0225] Case one, the third information indicates that the terminal supports the first capability, and the network device determines that the terminal knows the reception beam X associated with the transmission beam X.

[0226] Case two, the third information indicates that the terminal supports the second capability, and the network device determines that the terminal does not know the reception beam X associated with the transmission beam X.

[0227] Case three, the second information indicates that the terminal knows the reception beam X associated with the transmission beam X, and the network device determines that the terminal knows the reception beam X.

[0228] Case four, the second information indicates that the terminal does not know the reception beam X associated with the transmission beam X, and the network device determines that the terminal does not know the reception beam X.

[0229] In some embodiments, if the transmission beam X is a beam in the best transmission beam, and all the transmission beam X is a transmission beam in the beam set B, the terminal knows the reception beam X associated with the transmission beam X, and the network device can determine that the terminal knows the reception beam X based on the protocol agreement, or the network device determines that the terminal knows the reception beam X based on the second information.

[0230] In some embodiments, if the transmission beam X is a transmission beam other than the best transmission beam in the beam set A, and at least one of the transmission beam X is a transmission beam in the beam set C, the following cases exist:

[0231] Case one, the network device determines that the terminal does not know the reception beam X associated with the transmission beam X.

[0232] Case two, the third information indicates that the terminal supports capability one, and the network device determines that the terminal is unknown about the receiving beam X associated with the transmitting beam X.

[0233] Case three, the third information indicates that the terminal supports capability two, and the network device determines that the terminal is unknown about the receiving beam X associated with the transmitting beam X.

[0234] In some embodiments, for case one, since the terminal only reports the best transmitting beam and whether the best receiving beam associated with the best transmitting beam is known, the transmitting beam X is not reported, and thus the network device can directly determine that the terminal is unknown about the receiving beam X.

[0235] In some embodiments, if the transmitting beam X is a transmitting beam other than the best transmitting beam in the beam set A, and all the transmitting beams X are transmitting beams in the beam set B, the terminal is known about the receiving beam X associated with the transmitting beam X, the network device can determine that the terminal is known about the receiving beam X based on a protocol agreement, or the network device determines that the terminal is known about the receiving beam X based on the second information.

[0236] In some embodiments, if the transmitting beam X is a transmitting beam other than the best transmitting beam in the beam set A, and all the transmitting beams X are transmitting beams in the beam set B, the terminal is known about the receiving beam X associated with the transmitting beam X, the network device can determine that the terminal is known about the receiving beam X based on a protocol agreement, or the network device determines that the terminal is known about the receiving beam X based on the second information.

[0237] In some embodiments, if the transmitting beam X is a transmitting beam other than the best transmitting beam in the beam set A, and all the transmitting beams X are transmitting beams in the beam set B, the terminal is known about the receiving beam X associated with the transmitting beam X, the network device can determine that the terminal is known about the receiving beam X based on a protocol agreement, or the network device determines that the terminal is known about the receiving beam X based on the second information.

[0238] In some embodiments, for the case that the transmitting beam X is a transmitting beam other than the best transmitting beam in the beam set A, and all the transmitting beams X are transmitting beams in the beam set B, steps S2108 and S2109 can be omitted, and the terminal directly activates the transmitting beam X associated with the first TCI state.

[0239] In some embodiments, if the transmitting beam X is a transmitting beam other than the best transmitting beam in the beam set A, and at least one of the transmitting beams X is a transmitting beam in the beam set C, for case one and case three, the network device performs step S2108, and the terminal performs step S2109 to determine the unknown receiving beam X.

[0240] In some embodiments, if the transmission beam X is other than the best transmission beam in the beam set A, and at least one of the transmission beam X is a transmission beam in the 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.

[0241] In some embodiments, for the case that the transmission beam X is other than the best transmission beam in the beam set A, and all the transmission beam X is a transmission beam in the beam set B, then steps S2108 and S2109 can be omitted, and the terminal directly activates the transmission beam X associated with the first TCI state.

[0242] In step S2108, the network device transmits a reference signal.

[0243] In some embodiments, the terminal receives the reference signal.

[0244] In some embodiments, the reference signal is associated with the first TCI state, and the reference signal is used by the terminal to perform a reception beam sweep to determine the unknown reception beam X.

[0245] In some embodiments, the network device transmits the reference signal during the activation of the first TCI state. In an example, the network device can transmit one reference signal multiple times, and the terminal measures these reference signals with different reception beams to obtain measurement results, and determines the unknown reception beam X associated with the transmission beam X based on the measurement results.

[0246] In some embodiments, the number of times the network device transmits the reference signal can be determined based on a protocol agreement or based on the terminal capability. In an example, the network device transmits 8 times according to the protocol agreement, and the terminal determines the unknown reception beam X based on 8 reference signals. In an example, the terminal transmits fourth information to the network device, and the fourth information indicates that the terminal can determine the unknown reception beam X based on 1 reference signal.

[0247] In step S2109, the terminal performs a reception beam sweep in the time unit during which the first TCI state is activated.

[0248] In some embodiments, the terminal performs a reception beam sweep in the time unit during which the first TCI state is activated based on the reference signal associated with the first TCI state to determine the unknown reception beam X.

[0249] In some embodiments, in the case of performing step S2109, the time unit during which the first TCI state is activated includes a first time duration (denoted as T L1 ).

[0250] In an example, the time unit for activating the first TCI state (TCI state activation delay) can be determined by the following expression (1):

[0251] wherein n is the 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 the determination information of the first command to the network device, is 3 slot lengths, T L1 is the time length for performing the receiving beam sweeping. T first-SSB is the time of the first SSB transmission after the UE decodes the first command. T SSB-proc is 2 milliseconds. TO uk = 1 or 0.

[0252] In some embodiments, the reference signal used for performing the receiving beam sweeping can be an SSB or a channel state information reference signal (CSI-RS). In an example, the reference signal is an SSB, then the first time length T L1 = N*T SSB , N is the receiving beam number. In an example, the reference signal is a CSI-RS, then the first time length T L1 = N*T CSI-RS , N is the receiving beam number.

[0253] In some embodiments, if the network device indicates to activate multiple first TCI states, the multiple first TCI states are associated with multiple transmission beams X, and at least two of the multiple receiving beams X associated with the multiple transmission beams X are unknown, then the terminal needs to perform receiving beam sweeping to determine the unknown receiving beams X. In this case, the first time length is the longest L1 measurement time of the source RS among the unknown target TCI states.

[0254] In some embodiments, when the first TCI state activation involves QCL-TypeD, the TO uk of the layer 1 measurement based on the CSI-RS = 1, the TO uk of the layer 1 measurement based on the SSB = 0. When the first TCI state activation only involves other QCL types, TO uk = 1.

[0255] In some embodiments, without performing step S2109, the time unit of activating the first TCI state does not include the first time length.

[0256] In an example, the time unit of activating the first TCI state can be determined by the following expression (2):

[0257] wherein T Ok = 1 or 0.

[0258] 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, then T Ok = 1, otherwise 0.

[0259] In step S2110, the terminal activates the transmission beam X associated with the first TCI state on the time unit of activating the first TCI state.

[0260] In some embodiments, after receiving the first command indicating the activation of the first TCI state, the terminal activates the transmission beam X associated with the first TCI state, and during the process of activating the transmission beam X, the terminal needs to know the reception beam X associated with the transmission beam. Therefore, for the case where the reception beam X associated with the transmission beam X is unknown, the terminal needs to perform a scan of the reception beam during the process of activating the transmission beam X to measure and determine the unknown reception beam X. That is, step S2109 and step S2110 can be understood as being performed simultaneously.

[0261] The communication method related to the embodiments of the present disclosure can 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 as one embodiment. For example, step S2102, step S2103 and step S2104 can be combined as one embodiment. For example, step S2102, step S2103, step S2104 and step S2105 can be combined as one embodiment. For example, step S2101, step S2102, step S2103, step S2104 and step S2105 can be combined as one embodiment. For example, step S2102, step S2103, step S2104, step S2105 and step S2106 can be combined as one embodiment. For example, step S2107, step S2108 and step S2110 can be combined as one embodiment. For example, step S2107, step S2108, step S2109 and step S2110 can be combined as one embodiment. For example, step S2105, step S2106, step S2107, step S2108, step S2109 and step S2110 can be combined as one embodiment. For example, step S2101, step S2105, step S2107, step S2108, step S2109 and step S2110 can be combined as one embodiment.

[0262] FIG. 2B is an exemplary interaction diagram two of a communication method according to an embodiment of the present disclosure. As shown in FIG. 2B, the embodiments of the present disclosure relate to a communication method. The communication method is performed by the communication system 100 and includes steps S2201 to S2206.

[0263] In the embodiments of the present disclosure, all of the best transmission beams are transmission beams in the beam set B.

[0264] In step S2201, the terminal performs measurement on each transmission beam in the beam set B to obtain a measurement result B.

[0265] The optional implementation of step S2201 can refer to the optional implementation of step S2102 in FIG. 2A, other associated parts in the embodiments involved in FIG. 2A, and the like, details are not described herein.

[0266] In step S2202, the terminal predicts the measurement result of each transmission beam in the beam set A based on the measurement result B, to obtain a measurement result A.

[0267] The optional implementation of step S2202 can refer to the optional implementation of step S2103 in FIG. 2A, other associated parts in the embodiments involved in FIG. 2A, and the like, details are not described herein.

[0268] In step S2203, the terminal determines the first information based on the measurement result A.

[0269] The optional implementation of step S2203 can refer to the optional implementation of step S2104 in FIG. 2A, other associated parts in the embodiments involved in FIG. 2A, and the like, details are not described herein.

[0270] In step S2204, the terminal sends the first information.

[0271] In some embodiments, the network device receives the first information.

[0272] In some embodiments, the first information can be the index of the best transmission beam.

[0273] In some embodiments, the first information indicates that all the best transmission beams are transmission beams in the beam set B.

[0274] In some embodiments, in the case that all the best transmission beams are transmission beams in the beam set B, the network device can determine whether the terminal knows the best reception beam associated with the best transmission beam based on a known condition agreed by the protocol (for example: a known condition (Known condition) of a TCI state to be activated).

[0275] In some embodiments, in the case that all the best transmission beams are transmission beams in the beam set B, the terminal can also send second information to the network device, the second information being used to indicate that the terminal knows the best reception beam associated with the best transmission beam, and the network device determines that the terminal knows the best reception beam based on the second information.

[0276] In step S2205, the network device sends a first command.

[0277] In some embodiments, the terminal receives the first command.

[0278] In some embodiments, the first command is used to activate at least one first TCI state.

[0279] In some embodiments, the first command can be any command capable of activating the first TCI state. In an example, the first command can include, but is not limited to, a media access control-control element (MAC-CE).

[0280] In some embodiments, the at least one first TCI state is associated with at least one transmission beam X.

[0281] In some embodiments, the transmission beam X can be a beam in the best transmission beam or a transmission beam other than the best transmission beam in the beam set A. That is, the network device can select the activated transmission beam X from the best transmission beam reported by the terminal, or directly indicate the transmission beam X to be activated.

[0282] In some embodiments, in the case where the transmission beam X is a beam in the best transmission beam, the terminal performs step S2206.

[0283] In some embodiments, in the case where 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 performs step S2206.

[0284] In some embodiments, in the case where the transmission beam X is a transmission beam other than the best 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, the relevant embodiments in FIG. 2A can be referred to.

[0285] In step S2206, the terminal activates the transmission beam X associated with the first TCI state in the time unit of activating the first TCI state.

[0286] In some embodiments, since the reception beam X corresponding to the transmission beam X associated with the first TCI state is known, the terminal does not need to perform scanning of the reception beam in the process of activating the transmission beam X associated with the first TCI state, that is, the time of activating the first TCI state does not need to be delayed.

[0287] In some examples, the time unit of activating the first TCI state can be determined based on the above expression (2).

[0288] The communication method related to the embodiments of the present disclosure can 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, steps S2201 and S2202 can be combined as one embodiment. For example, steps S2201, S2202 and S2203 can be combined as one embodiment. For example, steps S2202, S2203 and S2204 can be combined as one embodiment. For example, steps S2204, S2205 and S2206 can be combined as one embodiment. For example, steps S2201, S2202, S2203 and S2204 can be combined as one embodiment.

[0289] FIG. 2C is an exemplary interaction diagram three of a communication method according to an embodiment of the present disclosure. As shown in FIG. 2C, the embodiments of the present disclosure relate to a communication method. The communication method is performed by the communication system 100 and includes steps S2301 to S2304.

[0290] In step S2301, the network device sends a first command.

[0291] In some embodiments, the terminal receives the first command.

[0292] In some embodiments, the first command is used to activate at least one first TCI state.

[0293] In some embodiments, the first command can be any command capable of activating the first TCI state. In an example, the first command can include but is not limited to a media access control-control element (MAC-CE).

[0294] In some embodiments, the at least one first TCI state is associated with at least one transmission beam X.

[0295] In some embodiments, the transmission beam X can be a beam in the best transmission beam or a transmission beam other than the best transmission beam in the beam set A. That is, the network device can select the activated transmission beam X from the best transmission beam reported by the terminal, or directly indicate the transmission beam X to be activated.

[0296] In some embodiments, the transmission beam X is known to include one of the following conditions:

[0297] Condition one, the transmission beam X has been measured;

[0298] Condition two, the transmission beam X has been predicted, and the terminal supports predicting multiple reception beams;

[0299] Condition three, the transmission beam X has been predicted, and the terminal indicates the reception beam X associated with the transmission beam X is known.

[0300] In some embodiments, condition one can be understood as the transmission beam X is a transmission beam in the beam set B, or can be understood as the first TCI state has been measured.

[0301] In some embodiments, condition two can be understood as the transmission beam X is a beam in the beam set C, and the terminal supports capability one; or can be understood as the first TCI state has been predicted, and the terminal also predicts the reception beam X.

[0302] In some embodiments, condition three can be understood as the transmission beam X is a beam in the beam set C, and the terminal sends the second information, the second information indicating that the terminal knows the reception beam X; or can be understood as the first TCI state has been predicted, and the terminal sends the second information, the second information indicating that the terminal knows the reception beam X.

[0303] In some embodiments, the beam X unknown includes one of the following conditions:

[0304] Condition one, the transmission beam X has been predicted, and the terminal supports predicting part of the multiple reception beams;

[0305] Condition two, the transmission beam X has been predicted, and the terminal indicates that the reception beam X associated with the transmission beam X is unknown.

[0306] In some embodiments, condition one can be understood as the transmission beam X is a beam in the beam set C, and the terminal supports capability two; or can be understood as the first TCI state has been predicted, and the terminal does not predict the reception beam X.

[0307] In some embodiments, condition two can be understood as the transmission beam X is a beam in the beam set C, and the terminal sends the second information, the second information indicating that the terminal does not know the reception beam X; or can be understood as the first TCI state has been predicted, and the terminal sends the second information, the second information indicating that the terminal does not know the reception beam X.

[0308] In an example, the best receive beam is known if the RS resource for layer 1 measurement is the RS resource for the first TCI state or quasi co-location (QCL) to the RS resource for the first downlink TCI state within the time from the last transmission of the reference signal (RS) resource for the first TCI state to the completion of the first TCI state switch.

[0309] In an example, the best receive beam is known if the first command is received within 1280 ms from the last transmission of the RS resource for the beam report or measurement and the first TCI state has been measured.

[0310] In an example, the best receive beam is known if the first command is received within 1280 ms from the last transmission of the RS resource for the beam report or measurement, the first TCI state has been predicted, and the terminal supports predicting all receive beams.

[0311] In an example, the best receive beam is known if the first command is received within 1280 ms from the last transmission of the RS resource for the beam report or measurement, the first TCI state has been predicted, and the terminal also reports that the best receive beam is available.

[0312] In an example, the best receive beam is known if the terminal transmits at least one measurement report for the first TCI state before the first command and the first TCI state has been measured.

[0313] In an example, the best receive beam is known if the terminal transmits 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 predicting all receive beams.

[0314] In an example, the best receive beam is known if the terminal transmits 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 reports that the best receive beam is available.

[0315] In an example, the best receive beam is known if the first TCI state remains detectable during the first TCI state switch.

[0316] In an example, the best receive beam is known if the synchronization signal and pbch block (SSB) associated with the first TCI state remains detectable during the first TCI state switch.

[0317] In an example, if the signal-to-noise ratio of the first TCI state is greater than or equal to -3 dB, the best reception beam is known.

[0318] In an example, if the condition in the above example is not met, the best reception beam is unknown.

[0319] In some embodiments, if the transmission beam X is known, steps S2302 and S2303 are omitted, and the terminal performs step S2304.

[0320] In some embodiments, if the transmission beam X is unknown, the network device performs step S2302, and the terminal performs steps S2303 and S2304.

[0321] In step S2302, the network device transmits a reference signal.

[0322] Optional implementation of step S2302 can be seen in optional implementation of step S2108 of FIG. 2A, other associated parts in the embodiments involved in FIG. 2A, which will not be repeated here.

[0323] In step S2303, the terminal performs scanning of the reception beam on the time unit in which the first TCI state is activated.

[0324] Optional implementation of step S2303 can be seen in optional implementation of step S2109 of FIG. 2A, other associated parts in the embodiments involved in FIG. 2A, which will not be repeated here.

[0325] In step S2304, the terminal activates the transmission beam X associated with the first TCI state on the time unit in which the first TCI state is activated.

[0326] Optional implementation of step S2304 can be seen in optional implementation of step S2110 of FIG. 2A, other associated parts in the embodiments involved in FIG. 2A, which will not be repeated here.

[0327] In some embodiments, steps S2301 and S2302 can exchange the execution order, or can be executed simultaneously.

[0328] FIG. 2D is an exemplary interaction diagram four of a communication method according to embodiments of the present disclosure. As shown in FIG. 2D, embodiments of the present disclosure relate to a communication method. Performed by the communication system 100, the communication method comprises steps S2401 to S2406.

[0329] In step S2401, the terminal transmits third information.

[0330] Optional implementation of step S2401 can be seen in optional implementation of step S2101 of FIG. 2A, other associated parts in the embodiments involved in FIG. 2A, which will not be repeated here.

[0331] In step S2402, the terminal performs measurement on each of the transmission beams in the beam set B, and obtains a measurement result B.

[0332] Optional implementation of step S2402 can refer to optional implementation of step S2102 in FIG. 2A, other associated parts in the embodiments involved in FIG. 2A, and the like, which will not be repeated here.

[0333] In step S2403, the terminal predicts the measurement result of each of the transmission beams in the beam set A based on the measurement result B, and obtains a measurement result A.

[0334] Optional implementation of step S2403 can refer to optional implementation of step S2103 in FIG. 2A, other associated parts in the embodiments involved in FIG. 2A, and the like, which will not be repeated here.

[0335] In step S2404, the terminal determines the first information based on the measurement result A.

[0336] Optional implementation of step S2404 can refer to optional implementation of step S2104 in FIG. 2A, other associated parts in the embodiments involved in FIG. 2A, and the like, which will not be repeated here.

[0337] In step S2405, the terminal transmits the first information.

[0338] Optional implementation of step S2405 can refer to optional implementation of step S2105 in FIG. 2A, other associated parts in the embodiments involved in FIG. 2A, and the like, which will not be repeated here.

[0339] In step S2406, the terminal transmits the second information.

[0340] Optional implementation of step S2406 can refer to optional implementation of step S2106 in FIG. 2A, other associated parts in the embodiments involved in FIG. 2A, and the like, which will not be repeated here.

[0341] In some embodiments, step S2406 can be performed at any time before step S2405.

[0342] In some embodiments, step S2401 and step S2406 can be performed alternatively.

[0343] In some embodiments, step S2405 and step S2406 can be performed simultaneously.

[0344] The communication method related to the embodiments of the present disclosure can 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 as one embodiment. For example, step S2401, step S2402 and step S2403 can be combined as one embodiment. For example, step S2402, step S2403 and step S2404 can be combined as one embodiment. For example, step S2404, step S2405 and step S2406 can be combined as one embodiment. For example, step S2401, step S2402, step S2403 and step S2404 can be combined as one embodiment. For example, step S2401, step S2402, step S S2403, step S2404 and step S2405 can be combined as one embodiment.

[0345] In some embodiments, the terms “third transmission beam”, “best transmission beam”, “target transmission beam” and the like can be replaced with each other.

[0346] In some embodiments, the terms “first reception beam”, “best reception beam”, “target reception beam” and the like can be replaced with each other.

[0347] In some embodiments, the terms “first reception beam associated with the third transmission beam”, “first reception beam corresponding to the third transmission beam”, “first reception beam paired with the third transmission beam” and the like can be replaced with each other.

[0348] In some embodiments, the terms “transmission beam”, “TX beam” and the like can be replaced with each other.

[0349] In some embodiments, the terms “reception beam”, “RX beam” and the like can be replaced with each other.

[0350] In some embodiments, the terms “all”, “complete”, “multiple” and the like can be replaced with each other.

[0351] In some embodiments, the terms “specific”, “part”, “part of the multiple” and the like can be replaced with each other.

[0352] In some embodiments, the terms “TCI state activation”, “TCI state switching” and the like can be replaced with each other.

[0353] In some embodiments, the terms "time unit of activating TCI state", "time unit of switching TCI state", "activation duration", "switching duration" and the like can be replaced with each other.

[0354] In some embodiments, the names of information and the like are not limited to the names described in the embodiments, and the terms "information", "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "domain", "field", "symbol", "symbol", "codebook", "codeword", "code point", "bit", "data", "program", "chip" and the like can be replaced with each other.

[0355] In some embodiments, the terms "carrying", "including", "containing", "packaging" and the like can be replaced with each other.

[0356] In some embodiments, the terms "radio", "wireless", "radio access network (RAN)", "access network (AN)", "RAN-based" and the like can be replaced with each other.

[0357] In some embodiments, the terms "acquire", "obtain", "get", "receive", "transmit", "bidirectional transmission", "send and / or receive" can be replaced with each other, which can be interpreted as receiving from other subjects, acquiring from protocols, obtaining from higher layers, obtaining by processing oneself, and the like.

[0358] In some embodiments, the terms "send", "transmit", "report", "transmit", "request", "bidirectional transmission", "send and / or receive" and the like can be replaced with each other.

[0359] In some embodiments, the terms "issue", "return", "feedback", "response", "acknowledgment" and the like can be replaced with each other.

[0360] In some embodiments, the terms "certain", "preset", "pre-set", "set", "indicated", "any", "first", and the like can be replaced with each other, and "certain A", "preset A", "pre-set A", "set A", "indicated A", "any A", "first A" can be interpreted as A predetermined in a protocol or the like, or A obtained by setting, configuring, or indicating, or a specific A, any A, or first A, but are not limited thereto.

[0361] In some embodiments, the determination or judgment can be made 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.

[0362] FIG. 3A is one of flow diagrams of a communication method performed by a terminal according to an embodiment of the present disclosure. As shown in FIG. 3A, the embodiment of the present disclosure relates to a communication method performed by a terminal. The above communication method includes steps S3101 to S3110.

[0363] In step S3101, third information is transmitted.

[0364] The optional implementation of step S3101 can refer to the optional implementation of step S2101 of FIG. 2A, other associated parts in the embodiments involved in FIG. 2A, and the like, which will not be repeated here.

[0365] In step S3102, a measurement is performed on each transmission beam in the beam set B to obtain a measurement result B.

[0366] The optional implementation of step S3102 can refer to the optional implementation of step S2102 of FIG. 2A, other associated parts in the embodiments involved in FIG. 2A, and the like, which will not be repeated here.

[0367] In step S3103, based on the measurement result B, a measurement result of each transmission beam in the beam set A is predicted to obtain a measurement result A.

[0368] The optional implementation of step S3103 can refer to the optional implementation of step S2103 of FIG. 2A, other associated parts in the embodiments involved in FIG. 2A, and the like, which will not be repeated here.

[0369] In step S3104, based on the measurement result A, the first information is determined.

[0370] The optional implementation of step S3104 can refer to the optional implementation of step S2104 in FIG. 2A, other associated parts in the embodiments related to FIG. 2A, and the like, details are not repeated here.

[0371] In step S3105, the first information is sent.

[0372] The optional implementation of step S3105 can refer to the optional implementation of step S2105 in FIG. 2A, other associated parts in the embodiments related to FIG. 2A, and the like, details are not repeated here.

[0373] In step S3106, the second information is sent.

[0374] The optional implementation of step S3106 can refer to the optional implementation of step S2106 in FIG. 2A, other associated parts in the embodiments related to FIG. 2A, and the like, details are not repeated here.

[0375] In step S3107, the first command is received.

[0376] The optional implementation of step S3107 can refer to the optional implementation of step S2107 in FIG. 2A, other associated parts in the embodiments related to FIG. 2A, and the like, details are not repeated here.

[0377] In step S3108, the reference signal is received.

[0378] The optional implementation of step S3108 can refer to the optional implementation of step S2108 in FIG. 2A, other associated parts in the embodiments related to FIG. 2A, and the like, details are not repeated here.

[0379] In step S3109, the scanning of the receiving beam is performed on the time unit in which the first TCI state is activated.

[0380] The optional implementation of step S3109 can refer to the optional implementation of step S2109 in FIG. 2A, other associated parts in the embodiments related to FIG. 2A, and the like, details are not repeated here.

[0381] In step S3110, the sending beam X associated with the first TCI state is activated on the time unit in which the first TCI state is activated.

[0382] The optional implementation of step S3110 can refer to the optional implementation of step S2110 in FIG. 2A, other associated parts in the embodiments related to FIG. 2A, and the like, details are not repeated here.

[0383] The communication method related to the embodiments of the present disclosure can 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 as one embodiment. For example, step S3102, step S3103 and step S3104 can be combined as one embodiment. For example, step S3102, step S3103, step S3104 and step S3105 can be combined as one embodiment. For example, step S3101, step S3102, step S3103, step S3104 and step S3105 can be combined as one embodiment. For example, step S3102, step S3103, step S3104, step S3105 and step S3106 can be combined as one embodiment. For example, step S3107, step S3108 and step S3110 can be combined as one embodiment. For example, step S3107, step S3108, step S3109 and step S3110 can be combined as one embodiment. For example, step S3105, step S3106, step S3107, step S3108, step S3109 and step S3110 can be combined as one embodiment. For example, step S3101, step S3105, step S3107, step S3108, step S3109 and step S3110 can be combined as one embodiment.

[0384] FIG. 3B is a flow diagram illustrating a second example of a communication method performed by a terminal according to an embodiment of the present disclosure. As shown in FIG. 3B, the embodiment of the present disclosure relates to a communication method, performed by a terminal. The communication method includes steps S3201 to S3206.

[0385] In step S3201, a measurement is performed on each transmission beam in the beam set B, to obtain a measurement result B.

[0386] The optional implementation of step S3201 can refer to the optional implementation of step S2201 in FIG. 2B, other related parts in the embodiments related to FIG. 2B, which will not be repeated here.

[0387] In step S3202, based on the measurement result B, a measurement result of each transmission beam in the beam set A is predicted, to obtain a measurement result A.

[0388] Optional implementation of step S3202 can refer to optional implementation of step S2202 in FIG. 2B, other associated parts in the embodiments involved in FIG. 2B, which will not be repeated here.

[0389] In step S3203, the first information is determined based on the measurement result A.

[0390] Optional implementation of step S3203 can refer to optional implementation of step S2203 in FIG. 2B, other associated parts in the embodiments involved in FIG. 2B, which will not be repeated here.

[0391] In step S3204, the first information is transmitted.

[0392] Optional implementation of step S3204 can refer to optional implementation of step S2204 in FIG. 2B, other associated parts in the embodiments involved in FIG. 2B, which will not be repeated here.

[0393] In step S3205, the first command is received.

[0394] Optional implementation of step S3205 can refer to optional implementation of step S2205 in FIG. 2B, other associated parts in the embodiments involved in FIG. 2B, which will not be repeated here.

[0395] In step S3206, the transmission beam X associated with the first TCI state is activated on the time unit when the first TCI state is activated.

[0396] Optional implementation of step S3206 can refer to optional implementation of step S2206 in FIG. 2B, other associated parts in the embodiments involved in FIG. 2B, which will not be repeated here.

[0397] The communication method related to the embodiments of the present disclosure can 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 as one embodiment. For example, step S3205 and step S3206 can be combined as one embodiment. For example, step S3201, step S3202 and step S3203 can be combined as one embodiment. For example, step S3202, step S3203 and step S3204 can be combined as one embodiment. For example, step S3204, step S3205 and step S3206 can be combined as one embodiment. For example, step S3201, step S3202, step S3203 and step S3204 can be combined as one embodiment.

[0398] FIG. 3C is one of flow diagrams of a communication method performed by a network device, according to an embodiment of the present disclosure. As shown in FIG. 3C, the embodiments of the present disclosure relate to a communication method, performed by a network device. The above-mentioned communication method includes steps S3301 to S3305.

[0399] In step S3301, third information is received.

[0400] The optional implementation of step S3301 can refer to the optional implementation of step S2101 in FIG. 2A, other associated parts in the embodiments related to FIG. 2A, which will not be repeated here.

[0401] In step S3302, first information is received.

[0402] The optional implementation of step S3301 can refer to the optional implementation of step S2105 in FIG. 2A, other associated parts in the embodiments related to FIG. 2A, which will not be repeated here.

[0403] In step S3303, second information is received.

[0404] The optional implementation of step S3303 can refer to the optional implementation of step S2106 in FIG. 2A, other associated parts in the embodiments related to FIG. 2A, which will not be repeated here.

[0405] In step S3304, a first command is sent.

[0406] The optional implementation of step S3304 can refer to the optional implementation of step S2107 in FIG. 2A, other associated parts in the embodiments related to FIG. 2A, and so on, details are not repeated here.

[0407] In step S3305, a reference signal is sent.

[0408] The optional implementation of step S3305 can refer to the optional implementation of step S2108 in FIG. 2A, other associated parts in the embodiments related to FIG. 2A, and so on, details are not repeated here.

[0409] FIG. 3D is a second embodiment flow chart of a network device performing a communication method according to the present disclosure. As shown in FIG. 3D, the embodiments of the present disclosure relate to a communication method, which is performed by a network device. The above-mentioned communication method comprises steps S3401 to S3402.

[0410] In step S3401, first information is received.

[0411] The optional implementation of step S3401 can refer to the optional implementation of step S2204 in FIG. 2B, other associated parts in the embodiments related to FIG. 2B, and so on, details are not repeated here.

[0412] In step S3402, a first command is sent.

[0413] The optional implementation of step S3402 can refer to the optional implementation of step S2205 in FIG. 2B, other associated parts in the embodiments related to FIG. 2B, and so on, details are not repeated here.

[0414] FIG. 4A is a third embodiment flow chart of a terminal performing a communication method according to the present disclosure. As shown in FIG. 4A, the embodiments of the present disclosure relate to a communication method, which is performed by a terminal. The above-mentioned communication method comprises steps S4101 to S4102.

[0415] In step S4101, a measurement result of a beam set A is predicted based on a measurement result of a beam set B.

[0416] The optional implementation of step S4101 can refer to the optional implementation of step S2101 in FIG. 2A, other associated parts in the embodiments related to FIG. 2A, and so on, details are not repeated here.

[0417] In step S4102, first information is sent based on the measurement result of the beam set A.

[0418] The optional implementation of step S4102 can refer to the optional implementation of step S2102 in FIG. 2A, other associated parts in the embodiments related to FIG. 2A, and so on, details are not repeated here.

[0419] FIG. 4B is a third implementation flowchart of a method of performing communication by a network device, according to an embodiment of the present disclosure. As shown in FIG. 4B, the embodiments of the present disclosure relate to a method of communication, performed by a network. The method of communication includes step S4201.

[0420] In step S4201, first information is received.

[0421] The optional implementation of step S4201 can refer to the optional implementation of step S2102 in FIG. 2A, other associated parts in the embodiments involved in FIG. 2A, which will not be described here.

[0422] In some embodiments, the AI-based beam reporting procedure includes the following steps: Step 1, L1-RSRP measurement of the beam set B. For each TX beam in the beam set B, the UE will perform RX beam sweeping, i.e., the UE will measure the same TX beam with multiple RX beams and select the maximum value as the result of the TX beam. Step 2, according to the measurement results in the beam set B, the UE will predict the L1-RSRP measurement results of the beams in the beam set A. The UE will select the best TX beam with the maximum L1-RSRP for reporting.

[0423] In some embodiments, there are two cases for the best TX beam reported, including: Case 1, the best TX beam is in the beam set B. Since the UE performs RX beam sweeping for all TX beams in the beam set B, the UE knows the corresponding best RX beam. Case 2, the best TX beam is in the beam set A. The UE only predicts the best TX beam in the beam set A. The UE may or may not know the best RX beam, depending on the UE's capability.

[0424] In some embodiments, for Case 1, the UE will report the best TX beam index. For Case 2, there are two options to define the reporting method. Option 1, the UE will report the best TX beam index and also report whether the best RX beam is known. Option 2, the UE only reports the best TX beam index. Define the UE capability to distinguish whether the UE knows the best RX beam. When the UE enters the network in advance, the capability will be reported to the network.

[0425] In some embodiments, the UE's capability includes capability 1 or capability 2. Capability 1, the UE supports full RX beam prediction capability. The UE predicts the best TX beam and the corresponding RX beam together. The Tx beam is the Tx beam that produces the maximum L1-RSRP on all Tx and Rx beam pairs. Capability 2, the UE supports specific RX beam prediction capability. The UE predicts the best TX beam with a specific Rx beam. The Tx beam is the Tx beam that produces the maximum L1-RSRP on all Tx beams with a specific Rx beam.

[0426] In some embodiments, for capability 2, the UE only predicts and reports the best TX beam based on one or more specific RX beams. Therefore, in practice, the UE can not know the best RX beam for the reported best TX beam. Therefore, during TCI state activation, the network needs to send one RS with target TCI state multiple times extra for the UE to perform the measurement of the best RX beam. The UE will measure these RSs with different RX beams and select the RX beam with the largest RSRP.

[0427] In some embodiments, for TCI state activation delay, different delay requirements are defined according to whether RX beam sweeping is needed. Therefore, RX beam known condition needs to be defined. If the best RX beam is known, the UE does not need to perform RX beam sweeping extra. Whether the best RX beam is known depends on the AI-based beam report.

[0428] In some embodiments, the UE can not need to perform RX beam sweeping in 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 capability).

[0429] In some embodiments, for condition 2, one of the following cases is included: 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 the full RX beam prediction capability.

[0430] In some embodiments, the target TCI state is known if the following conditions are met:

[0431] The time period from the last transmission of the RS resource for the L1-RSRP measurement report for the target TCI state to the completion of the TCI switching, wherein the RS resource for the L1-RSRP measurement is the RS of the target TCI state or QCLed to the RS of the target TCI state.

[0432] The TCI state switching command is received within 1280ms after the last transmission of the RS resource for beam reporting or measurement.

[0433] The UE has sent at least 1 L1-RSRP report for the target TCI before the TCI state switching command. Wherein,

[0434] The target TCI state in the L1-RSRP report has been measured, or,

[0435] The target TCI state in the L1-RSRP report is predicted and the UE supports full RX beam prediction capability, or

[0436] The target TCI state in the L1-RSRP report is predicted and the UE also reports the availability of RX beam prediction.

[0437] The TCI state remains detectable during the TCI state switching period.

[0438] The SSB associated with the TCI state remains detectable during the TCI state switching period.

[0439] The TCI state signal-to-noise ratio is ≥ -3 dB.

[0440] The SSB can be associated with a serving cell physical cell identification (PCI) or a PCI different from the serving cell PCI.

[0441] Otherwise, the target TCI state is unknown.

[0442] In some embodiments, if the target TCI state is unknown, the UE should be able to receive the UE-specific physical downlink control channel / physical downlink shared channel with the target TCI state of the serving cell where the TCI state switching occurs in the first slot after The UE should be able to receive the UE-specific physical downlink control channel / physical downlink shared channel with the old TCI state until the slot

[0443] where T L1-RSRP is the time for Rx beam refinement in FR2. The RS 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.

[0444] When the TCI state switching involves QCL-TypeD, the TO uk = 1 for CSI-RS based L1-RSRP measurement and TO uk = 0 for SSB based L1-RSR measurement.

[0445] When the TCI state switching involves only other QCL types, TO uk = 1.

[0446] T first-SSBis the time after L1-RSRP measurement to the first SSB transmission when the TCI state switching involves QCL-TypeD.

[0447] T first-SSB is the time of the first SSB transmission after the UE decodes the MAC CE command for other QCL types.

[0448] The SSB should be QCL-TypeA or QCL-TypeC of the target TCI state.

[0449] In some embodiments, if the subset of target TCI states in the TCI state list that are activated is unknown, the UE will be able to receive the UE-specific physical downlink control channel / physical downlink shared channel with the new target TCI state at the first slot after slot n when the physical downlink shared channel carrying the MAC-CE activating the TCI list update is received at slot n. slot after T. Wherein, T is the longest L1 measurement time of the source RS in the unknown target TCI state. L1-RSRP_list is the longest L1 measurement time of the source RS in the unknown target TCI state.

[0450] The embodiments of the present disclosure also propose a device for implementing any of the above methods, for example, a terminal is proposed, and the terminal 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 also proposed, and the access network device includes units or modules for implementing each step performed by the access network device in any of the above methods.

[0451] It should be understood that the division of each unit or module in the above apparatus is only a logical function division, and all or part of them can be integrated into a physical entity or physically separated in actual implementation. In addition, the units or modules in the apparatus can be implemented in the form of processor calling software: for example, the apparatus includes a processor, the processor is connected with a memory, the memory stores instructions, and the processor calls the instructions stored in the memory to realize any of the above methods or realize the functions of each unit or module of the above apparatus, wherein the processor is a general processor such as a central processing unit (CPU) or a microprocessor, and the memory is a memory in the apparatus or a memory outside the apparatus. Alternatively, the units or modules in the apparatus can be implemented in the form of hardware circuit, and the functions of part or all of the units or modules can be realized by the design of hardware circuit. The above hardware circuit can be understood as one or more processors; for example, in one implementation, the above hardware circuit is an application-specific integrated circuit (ASIC), and the functions of part or all of the units or modules are realized by the design of logical relationship of elements in the circuit; for another example, in another implementation, the above hardware circuit is a programmable logic device (PLD), and a field programmable gate array (FPGA) is taken as an example, which can include a large number of logic gate circuits, and the connection relationship between the logic gate circuits is configured by a configuration file, so as to realize the functions of part or all of the units or modules. All units or modules of the above apparatus can be all implemented in the form of processor calling software, or all implemented in the form of hardware circuit, or part implemented in the form of processor calling software and the remaining part implemented in the form of hardware circuit.

[0452] In the embodiments of the present disclosure, the processor is a circuit with signal processing capability. In one implementation, the processor can be a circuit with instruction reading and running capability, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), a digital signal processor (DSP), or the like. In another implementation, the processor can implement certain functions through a logical relationship of hardware circuit, and the logical relationship of the hardware circuit is fixed or can be reconfigured. 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 the reconfigurable hardware circuit, the processor loads a configuration document to implement the configuration of the hardware circuit. It can be understood that the processor loads instructions to implement the functions of the above part or all units or modules. In addition, the hardware circuit can also be designed for artificial intelligence, which can be understood as an ASIC, such as a neural network processing unit (NPU), a tensor processing unit (TPU), a deep learning processing unit (DPU), or the like.

[0453] FIG. 5 is a structural schematic diagram of a communication apparatus according to an embodiment of the present disclosure. As shown in FIG. 5, the communication device 5100 can include a transceiver module 5101.

[0454] In some embodiments, the communication apparatus 5100 is a terminal, and the transceiver module 5101 is configured to predict measurement results of a plurality of second transmission beams based on a measurement result of a first transmission beam, wherein the first transmission beam is at least one of the plurality of second transmission beams; and transmit first information based on the measurement results of the plurality of second transmission beams, the first information being used to indicate a third transmission beam of the plurality of second transmission beams. In some embodiments, the transceiver module 5101 is configured to perform at least one of the communication steps (such as steps S3101, S3105, and S3106, but not limited thereto) performed by the terminal in any of the above methods, details of which are not repeated here.

[0455] In some embodiments, the communication device 5100 is a network device, and the transceiver module 5101 is configured to receive first information, the first information being transmitted by a terminal based on measurement results of a plurality of second transmission beams, the first information being used to indicate a third transmission beam in the plurality of second transmission beams, and the measurement results of the plurality of second transmission beams being predicted based on measurement results of a first transmission beam, the first transmission beam being at least one of the plurality of second transmission beams. In some embodiments, the transceiver module 5101 is further configured to perform at least one of the communication steps (for example, steps S3301, S3302, and S3303, but not limited thereto) performed by the terminal in any of the above methods, and details are not described herein.

[0456] In some embodiments, the transceiver module can include a transmitting module and / or a receiving module. The transmitting module and the receiving module can be separate or integrated together. Alternatively, the transceiver module can be replaced by a transceiver.

[0457] FIG. 6 is a structural schematic diagram of a communication device according to embodiments of the present disclosure. The communication device 6100 can be a network device, a terminal (for example, a user equipment, etc.), a chip, a chip system, or a processor supporting the network device to implement any of the above methods, or a chip, a chip system, or a processor supporting the terminal to implement any of the above methods. The communication device 6100 can be used to implement the methods described in the above method embodiments, and details can be referred to the descriptions in the above method embodiments.

[0458] As shown in FIG. 6, the communication device 6100 includes one or more processors 6101. The processor 6101 can be a general-purpose processor or a special-purpose processor, for example, a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data, and the central processing unit can be used to control the communication device (for example, a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute programs, and process data of the programs. Alternatively, the communication device 6100 is configured to implement any of the above methods. Alternatively, the one or more processors 6101 are configured to invoke instructions to enable the communication device 6100 to implement any of the above methods.

[0459] 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 (for example, steps S3101, steps S3105, steps S3106, but not limited to) in the above-described method, and the processor 6101 performs at least one of the other steps (for example, steps S3102, steps S3103, but not limited to). In optional embodiments, the transceiver 6102 can include a receiver and / or a transmitter, which can be separate or integrated together. Optionally, the terms transceiver, transceiving unit, transceiver, transceiving circuit, interface circuit, interface, etc. can be replaced with each other, and the terms transmitter, transmitting unit, transmitter, transmitting circuit, etc. can be replaced with each other, and the terms receiver, receiving unit, receiver, receiving circuit, etc. can be replaced with each other.

[0460] In some embodiments, the communication device 6100 further includes one or more memories 6103 for storing data. Optionally, all or part of the memory 6103 can also be outside the communication device 6100. In optional embodiments, the communication device 6100 can include one or more interface circuits 6104. Optionally, the interface circuit 6104 is connected with the memory 6103, and the interface circuit 6104 can be used to receive data from the memory 6103 or other devices, and can be used to send data to the memory 6103 or other devices. For example, the interface circuit 6104 can read the data stored in the memory 6103 and send the data to the processor 6101.

[0461] The communication device 6100 described in the above embodiments can 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 can not be limited by Figure 6. The communication device can be a standalone device or can be part of a larger device. For example, the communication device can be: 1) a standalone integrated circuit (IC), or a chip, or a chip system or subsystem; (2) a set of one or more ICs, which can optionally include a storage component for storing data, programs; (3) an ASIC, such as a Modem; (4) a module that can be embedded in other devices; (5) a receiver, a terminal device, a smart terminal device, a cellular phone, a wireless device, a handset, a mobile unit, a vehicle-mounted device, a network device, a cloud device, an artificial intelligence device, etc.; (6) others, etc.

[0462] Figure 7 is a structural schematic diagram of a chip according to an embodiment of the present disclosure. For the case where the communication device 6100 can be a chip or a chip system, the structural schematic diagram of the chip 7100 shown in Figure 7 can be referred to, but not limited thereto.

[0463] The chip 7100 comprises one or more processors 7101. The chip 7100 is configured to perform any of the above methods.

[0464] In some embodiments, the chip 7100 further comprises one or more interface circuits 7102. Optionally, the terms interface circuit, interface, transceiver pin, etc. can replace each other. In some embodiments, the chip 7100 further comprises one or more memories 7103 configured to store data. Optionally, all or part of the memory 7103 can be outside the chip 7100. Optionally, the interface circuit 7102 is connected with the memory 7103, the interface circuit 7102 can be configured to receive data from the memory 7103 or other devices, and the interface circuit 7102 can be configured to send data to the memory 7103 or other devices. For example, the interface circuit 7102 can read the data stored in the memory 7103 and send the data to the processor 7101.

[0465] In some embodiments, the interface circuit 7102 performs at least one of the communication steps (for example, step S3101, step S3105, step S3106, but not limited to) in the above methods. The interface circuit 7102 performing the communication steps in the above methods, for example, means that the interface circuit 7102 performs data interaction between the processor 7101, the chip 7100, the memory 7103 or the transceiver device. In some embodiments, the processor 7101 performs at least one of the other steps (for example, step S3102, step S3103, step S3104, but not limited to).

[0466] The modules and / or devices described in each of the embodiments of the virtual device, the physical device, the chip, etc. can be combined or separated as appropriate. Optionally, part or all of the steps can also be performed by multiple modules and / or devices, which are not limited here.

[0467] The embodiments of the present disclosure further propose a storage medium, and the storage medium stores instructions. When the instructions run on the communication device 6100, the communication device 6100 performs 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 to this, and it can also be a storage medium readable by other devices. Optionally, the storage medium can be a non-transitory storage medium, but is not limited to this, and it can also be a transitory storage medium.

[0468] The embodiments of the present disclosure further propose a program product, and the program product is executed by the communication device 6100, so that the communication device 6100 performs any of the above methods. Optionally, the program product is a computer program product.

[0469] The embodiments of the present disclosure also provide a computer program, which, when running on a computer, enables the computer to perform any of the above methods.

[0470] Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. It is intended that the present application cover any and all variations of the application that come within the scope of the following claims and their equivalents. It is intended that the specification and examples be considered exemplary only, with the true scope and spirit of the application being indicated by the following claims.

[0471] It is to be understood that the application is not limited to particular details described herein and as illustrated in the figures and can be practiced with modification and changes within the scope of the present application. The application is not limited to the method steps described herein and as illustrated in the figures, but can include other method steps. The scope of the present application is not to be determined by the specific examples provided above but only by the claims below.

Claims

1. 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.

2. The method according to claim 1, wherein 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.

3. 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.

4. The method according to any one of claims 1 to 3, wherein: The measurement results satisfy 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.

5. 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 among the multiple second transmission beams except the first transmission beam.

6. 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.

7. The method according to any one of claims 1 to 6, wherein: The method further comprises: 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.

8. 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.

9. The method according to claim 8, wherein The prediction capability of the terminal for the first receive beam associated with the third transmit beam includes 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.

10. The method according to any one of claims 1 to 9, wherein: After sending the first information based on the measurement results of the plurality of second transmit beams, the method further includes 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.

11. The method according to claim 10, wherein: The time unit for activating the first TCI state includes a first duration, which is the duration for performing receive beam scanning.

12. The method according to claim 10 or 11, wherein: The first receiving 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.

13. The method according to claim 10 or 11, wherein: The first receiving 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.

14. The method according to any one of claims 10 to 13, wherein: The first receiving 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.

15. The method according to any one of claims 10 to 13, wherein: The first receiving 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.

16. A communication method, performed by a network device, the method comprising: receiving first information, where the first information is sent by the 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 plurality of 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 plurality of second transmission beams.

17. The method according to claim 16, wherein 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.

18. The method according to claim 16 or 17, wherein The measurement results satisfy 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.

19. 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 among the multiple second transmission beams except the first transmission beam.

20. 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.

21. 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.

22. The method according to any one of claims 16 to 21, wherein: The method further comprises: 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.

23. The method according to claim 22, wherein The prediction capability of the terminal for the first receive beam associated with the third transmit beam includes 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.

24. 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.

25. The method according to claim 24, wherein The time unit for activating the first TCI state includes a first duration, which is the duration for performing receive beam scanning.

26. The method according to claim 24 or 25, wherein The first receiving 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.

27. The method according to claim 24 or 25, wherein The first receiving 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.

28. The method according to any one of claims 24 to 27, wherein The first receiving 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.

29. The method according to any one of claims 24 to 27, wherein The first receiving 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.

30. 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.

31. A network device comprising: a transceiver module configured to receive first information, where the first information is sent by the terminal based on a measurement result of a plurality of second transmit beams, and the first information is used to indicate a third transmit beam among the plurality of second transmit beams; The measurement results of the plurality of 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 plurality of second transmission beams.

32. 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.

33. 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.

34. A communication method, performed by a communication system, the communication system comprising 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.

35. A communication system comprising a terminal and a network device, wherein: The communication system is configured to implement the communication method according to claim 34.

36. A storage medium storing instructions, wherein when the instructions are executed on a network device or a terminal, the network device or the terminal executes the communication method according to any one of claims 1 to 29.

37. A computer program product, comprising 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.

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