CN116965082A

CN116965082A - Beam management method and device

Info

Publication number: CN116965082A
Application number: CN202280000460.7A
Authority: CN
Inventors: 许宁
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2022-02-25
Filing date: 2022-02-25
Publication date: 2023-10-27
Also published as: WO2023159505A1

Abstract

The embodiment of the disclosure discloses a beam management method and device, wherein the method comprises the following steps: the terminal equipment receives first indication information sent by a base station; the first indication information is used for indicating the change of the beam state of the base station beam; and re-measuring the pilot signals corresponding to the base station beam under the condition that the beam state of the base station beam is changed according to the first indication information so as to obtain a measurement result, and reporting the measurement result to the base station. By implementing the embodiment of the disclosure, the support base station actively transmits the first indication information to the terminal equipment to indicate the change of the beam state of the beam of the base station, the terminal equipment is not required to perform downlink measurement, the beam failure is judged, and the beam failure discovery process is reported, so that the transmission delay can be reduced, and the signaling overhead is reduced.

Description

Beam management method and device

Technical Field

The disclosure relates to the field of communication technologies, and in particular, to a beam management method and device.

Background

Multi-antenna technology is widely used in wireless communication systems to improve system performance. For example, in Third Generation (3G) cellular mobile communication systems, which employ multiple antenna systems to provide diversity or shaping gain, fourth Generation long term evolution (Fourth Generation Long Term Evolution,4G LTE) and fifth Generation new air interface (Fifth Generation New Radio,5G NR) systems, multiple antenna arrays are widely used to implement space diversity, space division multiplexing or beamforming to improve the data transmission rate or service coverage capability of the system.

In the existing multi-antenna technology or large-scale array antenna technology, the default antenna form is usually fixed, and in the case that the antenna form can be changed, the beam state of the base station beam is changed, an effective beam management method is not yet available.

Disclosure of Invention

The embodiment of the disclosure provides a beam management method and device, which can solve the problems of large signaling overhead and large transmission delay in a method for performing beam adjustment by adopting a related-technology terminal device to initiate a beam failure recovery process or transmitting an uplink SRS to be measured by a base station under the condition that the beam state of a base station beam is changed when the antenna form of the base station is changed, reduce the signaling overhead and the transmission delay, and improve the system performance.

In a first aspect, an embodiment of the present disclosure provides a beam management method, where the method is applied to a terminal device, and the method includes: receiving first indication information sent by a base station; the first indication information is used for indicating the change of the beam state of the beam of the base station; and in response to the fact that the beam state of the base station beam is changed according to the first indication information, measuring the pilot signals corresponding to the base station beam again to obtain a measurement result, and reporting the measurement result to the base station.

In the technical scheme, the supporting base station actively transmits the first indication information to the terminal equipment to indicate the change of the beam state of the beam of the base station so as to inform the terminal equipment, the terminal equipment does not need to carry out downlink measurement, the beam failure is judged, the beam failure finding process is reported, the transmission delay can be reduced, and the signaling overhead is reduced.

In a second aspect, an embodiment of the present disclosure provides another beam management method, which is applied to a base station, and includes: sending first indication information to terminal equipment; the first indication information is used for indicating the change of the beam state of the beam of the base station; receiving a measurement result reported by the terminal equipment; the measurement result is obtained by the terminal equipment in response to the fact that the beam state of the base station beam is determined to be changed according to the first indication information, and pilot signals corresponding to the base station beam are measured again.

In a third aspect, an embodiment of the present disclosure provides a communication apparatus having a function of implementing part or all of the terminal device in the method described in the first aspect, for example, a function of the communication apparatus may be provided with a function in part or all of the embodiments of the present disclosure, or may be provided with a function of implementing any one of the embodiments of the present disclosure separately. The functions may be implemented by hardware, or may be implemented by hardware executing corresponding software. The hardware or software includes one or more units or modules corresponding to the functions described above.

In one implementation, the communication device may include a transceiver module and a processing module in a structure configured to support the communication device to perform the corresponding functions in the method. The transceiver module is used for supporting communication between the communication device and other equipment. The communication device may further comprise a memory module for coupling with the transceiver module and the processing module, which holds the necessary computer programs and data of the communication device.

As an example, the processing module may be a processor, the transceiver module may be a transceiver or a communication interface, and the storage module may be a memory.

In one implementation, the communication device includes: the receiving module is used for receiving the first indication information sent by the base station; the first indication information is used for indicating the change of the beam state of the beam of the base station; and the sending module is used for re-measuring the pilot signals corresponding to the base station beam in response to the change of the beam state of the base station beam according to the first indication information so as to obtain a measurement result and reporting the measurement result to the base station.

In a fourth aspect, an embodiment of the present disclosure provides another communications apparatus having a function of implementing part or all of the network device in the method example described in the second aspect, for example, a function of the communications apparatus may be provided with a function in part or all of the embodiments of the present disclosure, or may be provided with a function of implementing any one of the embodiments of the present disclosure separately. The functions may be implemented by hardware, or may be implemented by hardware executing corresponding software. The hardware or software includes one or more units or modules corresponding to the functions described above.

In one implementation, the communication device may include a transceiver module and a processing module in a structure configured to support the communication device to perform the corresponding functions of the method. The transceiver module is used for supporting communication between the communication device and other equipment. The communication device may further comprise a memory module for coupling with the transceiver module and the processing module, which holds the necessary computer programs and data of the communication device.

In one implementation, the communication device includes: the sending module is used for sending the first indication information to the terminal equipment; the first indication information is used for indicating the change of the beam state of the beam of the base station; the receiving module is used for receiving the measurement result reported by the terminal equipment; the measurement result is obtained by the terminal equipment in response to the fact that the beam state of the base station beam is determined to be changed according to the first indication information, and pilot signals corresponding to the base station beam are measured again.

In a fifth aspect, embodiments of the present disclosure provide a communication device comprising a processor, which when invoking a computer program in memory, performs the method of the first aspect described above.

In a sixth aspect, embodiments of the present disclosure provide a communication device comprising a processor that, when invoking a computer program in memory, performs the method of the second aspect described above.

In a seventh aspect, embodiments of the present disclosure provide a communication apparatus comprising a processor and a memory, the memory having a computer program stored therein; the processor executes the computer program stored in the memory to cause the communication device to perform the method of the first aspect described above.

In an eighth aspect, embodiments of the present disclosure provide a communication apparatus comprising a processor and a memory, the memory having a computer program stored therein; the processor executes the computer program stored in the memory to cause the communication device to perform the method of the second aspect described above.

In a ninth aspect, embodiments of the present disclosure provide a communications apparatus comprising a processor and interface circuitry for receiving code instructions and transmitting to the processor, the processor being configured to execute the code instructions to cause the apparatus to perform the method of the first aspect described above.

In a tenth aspect, embodiments of the present disclosure provide a communications device comprising a processor and interface circuitry for receiving code instructions and transmitting to the processor, the processor being configured to execute the code instructions to cause the device to perform the method of the second aspect described above.

In an eleventh aspect, an embodiment of the disclosure provides a beam management system, where the system includes a communication device according to the third aspect and a communication device according to the fourth aspect, or where the system includes a communication device according to the fifth aspect and a communication device according to the sixth aspect, or where the system includes a communication device according to the seventh aspect and a communication device according to the eighth aspect, or where the system includes a communication device according to the ninth aspect and a communication device according to the tenth aspect.

In a twelfth aspect, an embodiment of the present invention provides a computer readable storage medium storing instructions for use by the terminal device, where the instructions, when executed, cause the terminal device to perform the method of the first aspect.

In a thirteenth aspect, an embodiment of the present invention provides a readable storage medium storing instructions for use by a base station as described above, which when executed, cause the network device to perform the method of the second aspect described above.

In a fourteenth aspect, the present disclosure also provides a computer program product comprising a computer program which, when run on a computer, causes the computer to perform the method of the first aspect described above.

In a fifteenth aspect, the present disclosure also provides a computer program product comprising a computer program which, when run on a computer, causes the computer to perform the method of the second aspect described above.

In a sixteenth aspect, the present disclosure provides a chip system comprising at least one processor and an interface for supporting a terminal device to implement the functionality referred to in the first aspect, e.g. to determine or process at least one of data and information referred to in the above-mentioned method. In one possible design, the chip system further includes a memory for holding computer programs and data necessary for the terminal device. The chip system can be composed of chips, and can also comprise chips and other discrete devices.

In a seventeenth aspect, the present disclosure provides a chip system comprising at least one processor and an interface for supporting a base station to implement the functionality referred to in the second aspect, e.g. to determine or process at least one of data and information referred to in the above method. In one possible design, the chip system further includes a memory for holding computer programs and data necessary for the base station. The chip system can be composed of chips, and can also comprise chips and other discrete devices.

In an eighteenth aspect, the present disclosure provides a computer program which, when run on a computer, causes the computer to perform the method of the first aspect described above.

In a nineteenth aspect, the present disclosure provides a computer program which, when run on a computer, causes the computer to perform the method of the second aspect described above.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments or the background of the present disclosure, the following description will explain the drawings that are required to be used in the embodiments or the background of the present disclosure.

Fig. 1 is an architecture diagram of a communication system provided by an embodiment of the present disclosure;

fig. 2 is a flowchart of a beam management method provided by an embodiment of the present disclosure;

fig. 3 is a flow chart of another beam management method provided by an embodiment of the present disclosure;

fig. 4 is a flow chart of yet another beam management method provided by an embodiment of the present disclosure;

fig. 5 is a flow chart of yet another beam management method provided by an embodiment of the present disclosure;

fig. 6 is a flow chart of yet another beam management method provided by an embodiment of the present disclosure;

fig. 7 is a flow chart of yet another system beam management method provided by an embodiment of the present disclosure;

fig. 8 is a block diagram of a communication device provided by an embodiment of the present disclosure;

Fig. 9 is a block diagram of another communication device provided by an embodiment of the present disclosure;

fig. 10 is a block diagram of yet another communication device provided by an embodiment of the present disclosure;

fig. 11 is a schematic structural diagram of a chip according to an embodiment of the disclosure.

Detailed Description

In order to better understand a beam management method and apparatus disclosed in an embodiment of the present disclosure, a description is first given below of a communication system to which the embodiment of the present disclosure is applicable.

Referring to fig. 1, fig. 1 is a schematic architecture diagram of a communication system according to an embodiment of the disclosure. The communication system may include, but is not limited to, one network device and one terminal device, and the number and form of devices shown in fig. 1 are only for example and not limiting the embodiments of the present disclosure, and may include two or more network devices and two or more terminal devices in practical applications. The communication system shown in fig. 1 is exemplified as including one base station 101 and one terminal device 102.

It should be noted that the technical solution of the embodiment of the present disclosure may be applied to various communication systems. For example: a long term evolution (long term evolution, LTE) system, a fifth generation (5th generation,5G) mobile communication system, a 5G New Radio (NR) system, or other future new mobile communication systems, etc. It should also be noted that the sidelink in the embodiments of the present disclosure may also be referred to as a sidelink or a pass-through link.

The base station 101 in the embodiment of the present disclosure is an entity for transmitting or receiving a signal on the network side. For example, the base station 101 may be an evolved NodeB (eNB), a transmission point (transmission reception point, TRP), a next generation NodeB (gNB) in an NR system, a base station in other future mobile communication systems, or an access node in a wireless fidelity (wireless fidelity, wiFi) system, or the like. The embodiments of the present disclosure do not limit the specific technology and specific device configuration employed by the network device. The network device provided by the embodiments of the present disclosure may be composed of a Central Unit (CU) and a Distributed Unit (DU), where the CU may also be referred to as a control unit (control unit), the structure of the CU-DU may be used to split the protocol layers of the network device, such as a base station, and the functions of part of the protocol layers are placed in the CU for centralized control, and the functions of part or all of the protocol layers are distributed in the DU, so that the CU centrally controls the DU.

The terminal device 102 in the embodiments of the present disclosure is an entity on the user side for receiving or transmitting signals, such as a mobile phone. The terminal device may also be referred to as a terminal device (terminal), a User Equipment (UE), a Mobile Station (MS), a mobile terminal device (MT), etc. The terminal device may be an automobile with a communication function, a smart car, a mobile phone (mobile phone), a wearable device, a tablet computer (Pad), a computer with a wireless transceiving function, a Virtual Reality (VR) terminal device, an augmented reality (augmented reality, AR) terminal device, a wireless terminal device in industrial control (industrial control), a wireless terminal device in unmanned-driving (self-driving), a wireless terminal device in teleoperation (remote medical surgery), a wireless terminal device in smart grid (smart grid), a wireless terminal device in transportation safety (transportation safety), a wireless terminal device in smart city (smart city), a wireless terminal device in smart home (smart home), or the like. The embodiment of the present disclosure does not limit the specific technology and the specific device configuration adopted by the terminal device.

It may be understood that, the communication system described in the embodiments of the present disclosure is for more clearly describing the technical solutions of the embodiments of the present disclosure, and is not limited to the technical solutions provided in the embodiments of the present disclosure, and those skilled in the art can know that, with the evolution of the system architecture and the appearance of new service scenarios, the technical solutions provided in the embodiments of the present disclosure are equally applicable to similar technical problems.

In the related art, in the multi-antenna technology or the large-scale array antenna technology, the default antenna configuration is generally fixed. For example, in a 5G NR system, the antenna beam direction and propagation characteristics are changed mainly by analog beamforming and digital beamforming, and the range of the change is limited by the fixed antenna morphology. A beam management procedure is employed between the base station and the terminal device to maintain a preferred or optimal transmit and receive beam pair (beam pair or beam correspondence). In initial access, the terminal device needs to determine a better or optimal downlink beam first, and then initiates random access by using a random access resource corresponding to the beam. An initial beam pairing can be established using a predetermined correspondence between random access resources and downstream beams. Beam tuning may be used to change the beam pairing when the wireless propagation environment changes or the terminal moves, resulting in poor performance of the original beam pairing. When the radio channel changes drastically and cannot be changed by using the beam adjustment, the beam pairing can be reselected through a beam failure recovery (Beam Failure Recovery) process, and since the beam is measured and reported by the 5G NR system independently for each terminal device in the cell when the radio propagation environment changes, the terminal devices need to measure the beam independently or transmit SRS (Sounding Reference Signal, uplink sounding reference signal) independently by the base station, so as to perform the beam adjustment, and the beam failure recovery process is initiated independently by the terminal devices.

When the antenna morphology changes, the beams of the corresponding antenna device to all terminal devices of the whole cell may change, in which case a large number of terminal devices within the coverage area of one cell may initiate the beam adjustment or beam failure recovery process if the means in the related art are still adopted. From the downlink measurement, the beam failure determination, and the reporting to the terminal device, there may be a certain delay, that is, a certain time is required for the beam failure recovery process, which increases the transmission delay of the system. In addition, due to the large number of terminal devices involved, a large amount of signaling is simultaneously bursty, causing control channel congestion, thereby affecting system performance. New beam management techniques are needed to address the beam management problem in the case of changeable antenna configurations.

Based on this, the embodiment of the disclosure provides a beam management method, so as to implement beam management when the antenna morphology changes and the beam state of the base station beam changes, reduce the transmission delay, and improve the system performance.

In a wireless communication system employing multiple antenna technology and where antenna morphology is changeable. For example, in a 5G NR system, the TRP (Transmission and Reception Point, transmitting and receiving node) of a base station typically employs a certain antenna morphology and corresponding shaping parameters so that the wireless signal transmission and reception of the TRP can cover or serve a certain spatial range. The antenna unit and the receiving and transmitting radio frequency unit can adopt various connection modes to realize the mixed shaping of analog beam shaping and digital beam shaping. The service area of one or more TRPs forms one cell, whereas analog beamforming is typically the main factor determining the coverage of a cell. Analog beamforming is typically a wide beam with a large coverage area, with one cell corresponding to one analog beam. In millimeter wave and other frequency bands, a plurality of beams in different directions can be formed by using a beam forming technology, and the width of the beams is narrow, but the propagation distance is larger. The beams form a beam group, the beams in the group can be sent in turn in a time division multiplexing mode, and a cell coverage area is jointly served through beam scanning (beam scanning) in a time period. A downstream beam is typically associated with an SSB (Synchronization Signal Block ) or CSI-RS (Channel State Information-Reference Signal) configuration. When beam scanning is used, one TRP may configure N beams, and the terminal device may also configure M beams, M and N being positive integers. The transmit beam and the receive beam form a beam pair. It is apparent that there are many possible combinations of beam pairs, where better performing or optimal beam pairs are used for transmission of data signals, which may improve service. Note that a beam here is a beam belonging to TRP, which is paired with a beam of a terminal device that has better or optimal beam composition performance.

The base station periodically transmits SSBs including PSS (Primary Synchronization Signal ), SSS (Secondary Synchronization Signal, secondary synchronization signal) and PBCH (Physical Broadcast Channel ). Different downlink beams (typically analog beams) may correspond to different SSBs. The transmission period of SSB in 5G NR may be 5,10,20,40,80 or 160 ms or the like. If beam scanning is used, the period is a transmission period of one beam. The minimum transmission interval between the multiple beams may be 5ms. Before the terminal device accesses the cell, it needs to detect PSS and SSS, and then acquire SSB number information by receiving and decoding PBCH. Based on the corresponding relation between SSB number and random access resource, terminal equipment initiates random access to base station on proper random access resource after selecting cell and beam, thus establishing initial beam pairing. After the random access procedure is successful and the RRC (Radio Resource Control ) connection is established, the terminal device considers that the base station will use the same analog beam as the selected beam for subsequent radio signal transceiving. The terminal device will also continue to receive wireless signals using the receive beam used in the random access procedure. The same beam may also be used for uplink signal transmission in view of channel reciprocity.

The terminal equipment in the RRC connection state measures a plurality of transmitting beams from the TRP according to SSB or CSI-RS information configured by the base station; and reports the measurement result including the number of the beam and the parameter indicating the beam performance, such as RSRP (Reference Signal Receive Power, reference signal received power) or RSRQ (Reference Signal Receiving Quality, reference signal received quality), to the base station according to the reporting configuration. The terminal device may also measure the RSRP or RSRQ of the reference signal using different receive beams for the same transmit beam to determine the receive beam; wherein the receive beam may be a preferred or optimal receive beam. For uplink transmission, the downlink optimal beam pairing can be directly used for uplink based on uplink-downlink channel reciprocity, and the terminal equipment can also transmit SRS. The base station selects a preferred or optimal uplink reception beam by measuring SRS. When the wireless signal propagation environment changes or the terminal moves, the preferred or optimal beam reported by the terminal equipment changes or the preferred or optimal beam determined by SRS measurement changes. In this case, the base station may change the beam to serve the terminal device. Note that the preferred or optimal beam reported by the terminal device may be one or more, depending on the channel state and system configuration. The base station may select a beam from among the preferred or optimal beams reported by the terminal device, or select a beam in combination with other factors, to serve the terminal device. The current 5G NR protocol supports a base station to configure a plurality of beams for a terminal device through a radio resource control (RRC, radio Resource Control) message. The CE (Control Element) of the MAC (Media Access Control, medium access Control) may further indicate a subset of the candidate beams. The DCI (Downlink Control Information ) transmitted on the PDCCH (Physical Downlink Control Channel, physical downlink control channel) may indicate the beam that is ultimately used for data signal transmission. The beam indication is actually the correspondence between PDCCH or PDSCH (physical downlink shared channel ) and SSB or CSI-RS in the 5G NR standard, i.e. indicates that PDCCH or PDSCH uses the same analog beam as a certain SSB or CSI-RS. The correspondence is represented by TCI (Transmission Configuration Indication) status.

If the wireless channel changes drastically, such that the beam cannot be changed in time using the beam adjustment method described above, the beam pair may be reselected through a beam failure recovery (Beam Failure Recovery) process. If the RSRP or RSRQ of the SSB or CSI-RS is lower than a pre-configured threshold, the terminal device considers that a beam failure instance occurs. When multiple beam failure instances that exceed a certain threshold value occur in succession, the terminal device may initiate a beam failure recovery procedure. At this time, the terminal device needs to re-determine the beam pairing, and initiate a random access request to the base station through the random access channel. Because the random access channel resource has a predetermined relationship with the beam, the base station can learn the preferred or optimal beam selected by the terminal device, so that the beam is used for subsequent communication.

In the embodiment of the disclosure, a beam management method is provided, when the antenna morphology of a base station is changed, under the condition that the beam state of the beam of the base station is changed, the method for initiating a beam failure recovery process by adopting a related technology terminal device or transmitting an uplink SRS to be measured by the base station for beam adjustment can be solved, the problems of high signaling overhead and high transmission delay are solved, the signaling overhead and the transmission delay are reduced, and the system performance is improved.

Referring to fig. 2, fig. 2 is a flowchart of a beam management method according to an embodiment of the disclosure.

As shown in fig. 2, the method is applied to the terminal device, and the method may include, but is not limited to, the following steps:

s21: receiving first indication information sent by a base station; the first indication information is used for indicating that the beam state of the base station beam is changed.

Based on the foregoing discussion, in the related art, when the antenna morphology changes and the beam state of the base station beam changes, the terminal device starts the beam adjustment or beam failure recovery process, on one hand, the terminal device needs a certain time to start the beam adjustment or beam failure recovery process, which increases the transmission delay of the system, and on the other hand, because there are a large number of terminal devices in the cell served by the base station when the beam state of the base station beam changes, a large number of signaling bursts at the same time, which causes congestion of the control channel, thereby affecting the system performance.

In the embodiment of the disclosure, the support base station actively transmits the first indication information to the terminal device to indicate that the beam state of the beam of the base station changes, so that the terminal device does not need to perform downlink measurement, and the beam failure is determined and reported to find out the beam failure process.

It can be understood that, for the antenna configuration change, the change of the beam state of the beam of the base station is predictable by the base station, and based on this, in the embodiment of the present disclosure, the supporting base station actively sends the first indication information to the terminal device to indicate the change of the beam state of the beam of the base station, so as to inform the terminal device that the terminal device does not need to perform downlink measurement, determine that the beam fails, report the process of finding the beam failure, thereby reducing the transmission delay and reducing the signaling overhead.

In some embodiments, the change in beam state of the base station beam is caused by a change in antenna morphology of the base station.

It will be appreciated that when the antenna morphology of a base station changes, then the beams of all terminal devices of the whole cell may change from the antenna device of the corresponding base station to the cell served by the base station.

In the embodiment of the present disclosure, the change of the beam state of the beam of the base station is generated by the change of the antenna form of the base station, and further, the first indication information sent by the base station to the terminal device may also indicate the change of the antenna form of the base station, so as to indicate the change of the beam state of the beam of the base station.

It can be appreciated that the antenna morphology change causes the original analog shaped beam state to change, and can also be regarded as that the transmission of the SSB or CSI-RS corresponding to the beam changes, so that the measurement based on the original SSB or CSI-RS will fail in the future. Meanwhile, PDCCH or PDSCH transmissions associated with SSB or CSI-RS indicated by TCI may also change, resulting in the original beam pairing no longer being preferred or optimal. Thus, the first indication information may also indicate that the current beam is changed or that the current beam is about to fail (the beam is changed and is in fact the original measurement result and/or the beam pairing relation fails). When the cell served by the base station configures beam scanning, the first indication information may indicate the overall state that the beam changes or fails, and not distinguish the case of single beams, but also indicate which beams change or fail after the antenna configuration changes, respectively.

In some embodiments, the first indication information is used to indicate that the beam state of the base station beam changes, including at least one of:

the first indication information is used for indicating that the current wave beam of the base station is changed;

the first indication information is used for indicating the current beam failure of the base station;

the first indication information is used for indicating that all current beams of the base station are changed;

the first indication information is used for indicating that all current beams of the base station fail;

the first indication information is used for indicating the current partial wave beams of the base station to change;

the first indication information is used for indicating the current partial beam failure of the base station.

In the embodiment of the disclosure, the first indication information is used for indicating that the current beam of the base station is changed or disabled, or indicating that all current beams are changed or disabled, or indicating that some current beams are changed or disabled. The current beam refers to a beam used by the base station to communicate with the UE. Wherein, the total beam refers to a beam used by the base station to communicate with all UEs. The partial beam may or may not include a current beam of the base station communicating with the UE. Of course, if it is indicated that the current total beam is invalid, the current total beam necessarily includes the current beam with which the base station communicates with the UE.

In some embodiments, the first indication information may be used to indicate that the beam state of all or part of the beams of the base station beam remains unchanged.

It may be appreciated that, in the embodiment of the present disclosure, the first indication information may be used to indicate that the current beam of the base station remains unchanged, or indicate that all current beams remain unchanged, or indicate that some current beams remain unchanged.

In some embodiments, the first indication information includes at least: a bit map for indicating beam states of the base station beams; wherein, one bit in the bit map corresponds to one beam of the base station, and is used for indicating that the beam state of the corresponding beam is changed or remains unchanged.

In an embodiment of the present disclosure, the first indication information includes at least: and the bit bitmap is used for indicating the beam state of the beam of the base station, wherein the bit bitmap comprises at least one bit, one bit in the bit bitmap corresponds to one or more beams of the base station and is used for indicating that the beam state of the corresponding beam is changed or kept unchanged. In the embodiment of the present disclosure, one bit in the bit map corresponds to one or several beams of the base station, which means that there may be 1bit in the bit map corresponding to multiple beams of the base station, and/or there may be 1bit in the bit map corresponding to one beam of the base station. For example, there is 1bit in the bitmap corresponding to the current beam of the base station, and 1bit corresponding to the current partial beam of the base station (e.g., a beam other than the current beam); for another example, there is 1bit in the bitmap corresponding to the current beam of the base station, and 1bit corresponding to the first set of beams of the base station, and 1bit corresponding to the second set of beams … … of the base station. These are, of course, merely examples and are not intended to limit the scope of the disclosure.

It will be appreciated that the change in the beam state of the base station beam may cause the original measurement result and/or pairing relation of the terminal device to fail, and the beam state of the base station beam to fail.

Illustratively, the bit map includes at least one bit, where one bit indicates that the beam state of the corresponding beam is changed and remains unchanged with 0 and 1. For example: and when the bit is 1, indicating that the beam state of the corresponding beam is unchanged, and when the bit is 0, indicating that the beam state of the corresponding beam is changed or disabled. Or vice versa, namely: in the above example, when the bit is 1, the beam state of the corresponding beam may be indicated to be changed or disabled, and when the bit is 0, the beam state of the corresponding beam may be indicated to be unchanged.

It can be understood that there are a plurality of beams in a cell served by the base station, and one bit in the bit map corresponds to one beam of the base station, so that it can be indicated whether the beam state of the plurality of beams of the base station is changed or remains unchanged by the first indication information including the bit map.

In some embodiments, one bit in the bit map corresponds to one beam of the base station, comprising: in the case where the corresponding beam is a beam measured based on the synchronization signal block SSB, one bit in the bit map corresponds to one SSB number.

In some embodiments, one bit in the bit map corresponds to one beam of the base station, comprising: in the case that the corresponding beam is a beam measured based on the channel state information reference signal CSI-RS, one bit in the bit map corresponds to one CSI-RS number.

Illustratively, the bit map includes at least one bit. The bit may be used to indicate at least one of the following states:

in the case that the corresponding beam is a beam measured based on the synchronization signal block SSB, one bit in the bit map corresponds to one SSB number; and

under the condition that the corresponding beam is the beam which is measured based on the channel state information reference signal (CSI-RS), one bit in the bit bitmap corresponds to one CSI-RS number and is used for indicating that the beam state of the beam corresponding to the SSB number or the CSI-RS number is changed or kept unchanged.

Wherein, a bit indicates that the beam state of the corresponding beam is changed and remains unchanged by 0 and 1, when the bit is 1, the beam state of the corresponding beam is indicated to remain unchanged, and when the bit is 0, the beam state of the corresponding beam is indicated to be changed or invalid, or vice versa.

In some embodiments, the first indication information is a list; wherein the list is used for indicating the information of the beam with changed beam state in the base station beam. For example: the information of the beam may be at least one of: the beam number corresponding to the changed beam, or the CSI-RS resource number corresponding to the changed beam, the changed beam or the corresponding SSB number.

In the embodiment of the disclosure, the first indication information is a list, and the list indicates a beam with changed beam state in the beam of the base station. For example, the list indicates beam numbers corresponding to beams whose beam states change, CSI-RS resource numbers corresponding to beams whose beam states change, or SSB numbers corresponding to beams whose beam states change in the base station beam.

It may be understood that, in a cell served by the base station, there are multiple beams, and information of the beam whose beam state is changed in the base station is summarized through a list, where the list may include a beam number corresponding to the beam whose beam state is changed, or in the case that the corresponding beam is a beam for performing measurement based on the synchronization signal block SSB, the list may include an SSB number corresponding to the beam whose beam state is changed, or in the case that the corresponding beam is a beam for performing measurement based on the channel state information reference signal CSI-RS, the list may include a CSI-RS resource number corresponding to the beam whose beam state is changed.

S22: and re-measuring the pilot signals corresponding to the base station beam under the condition that the beam state of the base station beam is changed according to the first indication information so as to obtain a measurement result, and reporting the measurement result to the base station.

The terminal equipment re-measures the pilot signals corresponding to the base station wave beams at a first moment after receiving the first indication information so as to obtain measurement results, and reports the measurement results to the base station. In one possible implementation, the first time may be a time when the first indication information is received or any time after the first indication information is received. That is, the terminal device re-measures the pilot signal corresponding to the beam of the base station in response to receiving the first indication information, so as to obtain a measurement result, and reports the measurement result to the base station.

According to the beam management method provided by the embodiment of the disclosure, pilot signals corresponding to the base station beam can be measured again at the first moment. Wherein the first time may be determined for the UE, i.e. the method comprises: the terminal device determines a first time.

Of course, in the technical solution in the embodiment of the present disclosure, the re-measurement may be performed at the first time when the first indication information is received or at any time after the first time to obtain the measurement result.

In some embodiments, the first time instant may also be determined based on a base station or communication protocol. Namely: determining a first time, comprising: determining a first moment according to a predefined first duration; or receiving second indication information sent by the base station; the second indication information carries information of the first duration; and determining the first moment according to the second indication information.

In some possible implementations, the first duration may be represented by a time unit specified by the wireless communication system, such as a time slot, a symbol, or a subframe. Of course, the first duration may also be represented by a time duration of a timer.

In an embodiment of the present disclosure, the predefined first duration may be a first duration determined according to a communication protocol.

The second indication information may be an RRC broadcast message or a dedicated message, etc.

In some embodiments, the first duration may be greater than zero. Then, determining the first time includes: the first time is determined to be the time when the first indication information is received, and the first duration is added. The first duration may be equal to zero. Then, determining the first time includes: the first time is determined to be the time when the first indication information is received.

Of course, in the technical solution in the embodiment of the present disclosure, the re-measurement may be performed at the first time or at any time after the first time to obtain the measurement result.

In the embodiment of the disclosure, the terminal device can determine the first time according to the predefined first time length or the information of the first time length carried by the second indication information sent by the base station. In an exemplary embodiment, the first duration indicated by the second indication information of the base station is predefined or is 3 slots, and then the first time is determined to be the time when the first indication information is received, and 3 slots are added.

In the embodiment of the disclosure, when receiving the first indication information sent by the base station and determining that the beam state of the beam of the base station is changed, the terminal device re-measures the pilot signal corresponding to the beam of the base station at a first time not earlier than after receiving the first indication information, so as to obtain a measurement result, and reports the measurement result to the base station.

In order to ensure that the terminal equipment receives the first indication information, when the base station beam is re-measured, the base station has completed the beam state change of the base station beam, and in the embodiment of the present disclosure, after the terminal equipment receives the first indication information, the pilot signal corresponding to the base station beam is re-measured at a time not earlier than the first time after the terminal equipment receives the first indication information, and at this time, it can be ensured that the terminal equipment re-measures the beam after the base station has changed.

Thus, in the embodiment of the present disclosure, the base station sends the first indication information to the terminal device, where the first indication information indicates that the beam state of the beam of the base station changes, and it can be understood that the base station may change the beam state of the beam of the base station while sending the first indication information, or may change the beam state of the beam of the base station after a period of time, where the base station changes the beam state of the beam of the base station no later than the first time.

The pilot signals corresponding to the re-measurement base station wave beams are as follows: SSB, or CSI-RS.

It should be noted that, in the embodiment of the present disclosure, the first indication information can indicate which part of the beam state of the specific base station beam changes, and in this case, the terminal device can only re-measure the part of the beam of the base station indicated by the first indication information that changes according to the first indication information.

In the embodiment of the disclosure, the terminal equipment re-measures the pilot signals corresponding to the base station wave beams to obtain measurement results, and reports the measurement results to the base station. The base station selects a beam according to the measurement result reported by the terminal equipment, and configures according to the TCI state information in the original RRC message, and notifies the terminal equipment of the beam by using MAC CE or PDCCH DCI (in one mode, the notification of TCI information may be performed). If the change of antenna morphology results in that the configuration parameters (e.g. at least one of the following: SSB configuration or CSI-RS resource configuration, TCI configuration) in the RRC message also need to be changed, the base station initiates an RRC reconfiguration procedure, e.g. a rrcrecon configuration message may be used to send the new SSB configuration or CSI-RS resource configuration, or the original TCI configuration, to the terminal device. If the terminal equipment can not find the wave beam meeting the reporting configuration according to the original RRC message configuration, the terminal equipment selects proper random access resources to initiate a random access process to the base station according to the relation between the random access resources configured by the RRC message and the wave beam. And the base station performs subsequent data or signaling transmission by taking the beam as an optimal beam according to the relation between the random access resource and the beam or the beam selected by the terminal equipment.

By implementing the embodiment of the disclosure, the terminal equipment receives first indication information sent by the base station; the first indication information is used for indicating the change of the beam state of the base station beam, and the pilot signal corresponding to the base station beam is re-measured at a first moment after the first indication information is received in response to the change of the beam state of the base station beam determined according to the first indication information so as to acquire a measurement result, and the measurement result is reported to the base station. In the embodiment of the disclosure, the support base station actively transmits the first indication information to the terminal equipment to indicate the change of the beam state of the base station beam so as to inform the terminal equipment that the terminal equipment does not need to perform downlink measurement, determine the beam failure, report the beam failure discovery process, reduce the transmission delay and reduce the signaling overhead. The base station actively sends the first indication information to the terminal equipment, which means that the process is initiated by the base station instead of being initiated based on the request of the UE.

Referring to fig. 3, fig. 3 is a flowchart of another beam management method according to an embodiment of the disclosure.

As shown in fig. 3, the method is applied to the terminal device, and the method may include, but is not limited to, the following steps:

S31: receiving first indication information sent by a base station through a system information block SIB, or a master information block MIB, or a paging message; the first indication information is used for indicating that the beam state of the base station beam is changed.

In the embodiment of the disclosure, the base station may send the first indication information through a system information block SIB, or a master information block MIB, or a paging message.

The first indication information may refer to the description of the related embodiments of the present disclosure, and is not described herein again.

S32: and in response to the change of the beam state of the beam of the base station according to the first indication information, re-measuring the pilot signal corresponding to the beam of the base station to obtain a measurement result, and reporting the measurement result to the base station.

It should be noted that, in the embodiment of the present disclosure, the description of S31 and S32 may be referred to the description of S21 and S22 in the above example, which is not repeated here.

By implementing the embodiment of the disclosure, the terminal equipment receives first indication information sent by the base station; the first indication information is used for indicating the change of the beam state of the base station beam, and according to the first indication information, under the condition that the beam state of the base station beam is judged to be changed, the pilot signal corresponding to the base station beam is re-measured at a first moment not earlier than the moment after the first indication information is received, so that a measurement result is obtained, and the measurement result is reported to the base station. In the embodiment of the disclosure, the support base station actively transmits the first indication information to the terminal equipment to indicate the change of the beam state of the base station beam so as to inform the terminal equipment that the terminal equipment does not need to perform downlink measurement, determine the beam failure, report the beam failure discovery process, reduce the transmission delay and reduce the signaling overhead.

Referring to fig. 4, fig. 4 is a flowchart of yet another beam management method according to an embodiment of the disclosure.

As shown in fig. 4, the method is applied to the terminal device, and the method may include, but is not limited to, the following steps:

s41: the ability of the base station to have a changeable antenna morphology is determined.

In the embodiment of the disclosure, the terminal device may determine whether the base station has the capability of changing the antenna configuration, so as to obtain that the TRP of the cell served by the base station has the capability of changing the antenna configuration, and may dynamically change the beam state of the beam of the base station.

In one possible implementation manner, the terminal device may determine whether the base station has the capability of changing the antenna configuration according to whether the first indication information sent by the base station is received. In response to receiving the first indication information, determining that the base station has the capability of changing the antenna morphology, the base station may dynamically change the beam state of the beam of the base station. And in response to the condition that the first indication information sent by the base station is not received, determining that the base station does not have the capability of changing the antenna form, and determining that the beam state of the beam of the base station is not changed.

In some embodiments, the terminal device may determine, according to the third indication information sent by the receiving base station, that the base station has a capability of changing an antenna configuration; the third indication information is used for indicating the capability of the base station that the antenna form can be changed. In one possible implementation, the terminal device may default that the base station does not have the capability of changing the antenna morphology; and determining that the base station has the capability of changing the antenna form in response to receiving the third indication information sent by the base station. Or vice versa; that is, the terminal device may default to the base station having the capability of changing the antenna morphology.

The third indication information may be an RRC broadcast message or a dedicated message. The base station may send a third indication message through an RRC broadcast message or a dedicated message, indicating that the base station has the capability of changing the antenna configuration.

It should be noted that S41 may be implemented alone or in combination with any of the other steps in the embodiments of the present disclosure, for example, in combination with S21 and S22 and/or S31 and S32 in the embodiments of the present disclosure, which are not limited in this respect.

Referring to fig. 5, fig. 5 is a flowchart of another beam management method according to an embodiment of the disclosure.

As shown in fig. 5, the method is applied to a base station, and may include, but is not limited to, the following steps:

s51: sending first indication information to terminal equipment; the first indication information is used for indicating that the beam state of the base station beam is changed.

Based on the foregoing discussion, in the related art, when the antenna morphology changes and the beam state of the base station beam changes, the terminal device starts the beam adjustment or beam failure recovery process, on one hand, the terminal device needs a certain time to start the beam adjustment or beam failure recovery process, which increases the transmission delay of the system, and on the other hand, when the beam state of the base station beam changes, a large number of terminal devices exist in the cell served by the base station, and a large number of signaling is burst at the same time, which causes congestion of the control channel, thereby affecting the system performance.

In the embodiment of the present disclosure, the first indication information is further used to instruct the terminal device to perform re-measurement based on the pilot signal corresponding to the base station beam, so as to obtain a measurement result. Namely: the terminal equipment is used for measuring the pilot signals corresponding to the base station wave beams again in response to the fact that the wave beam state of the base station wave beams is changed according to the first indication information, so as to obtain measurement results, and reporting the measurement results to the base station. The first time may be a time when the first indication information is received or any time after the first indication information is received.

In the embodiment of the disclosure, the first indication information is used for indicating that the current beam of the base station is changed or disabled, or indicating that all current beams are changed or disabled, or indicating that some current beams are changed or disabled.

In some embodiments, the first indication information is further used to indicate that the beam state of all or part of the beams of the base station beam remains unchanged.

In an embodiment of the present disclosure, the first indication information includes at least: and the bit bitmap is used for indicating the beam state of the beam of the base station, and comprises at least one bit, wherein one bit in the bit bitmap corresponds to one or more beams of the base station and is used for indicating that the beam state of the corresponding beam is changed or kept unchanged. In the embodiment of the present disclosure, one bit in the bit map corresponds to one or several beams of the base station, which means that there may be 1bit in the bit map corresponding to multiple beams of the base station, and/or there may be 1bit in the bit map corresponding to one beam of the base station. For example, there is 1bit in the bitmap corresponding to the current beam of the base station, and 1bit corresponding to the current partial beam of the base station (e.g., a beam other than the current beam); for another example, there is 1bit in the bitmap corresponding to the current beam of the base station, and 1bit corresponding to the first set of beams of the base station, and 1bit corresponding to the second set of beams … … of the base station. These are, of course, merely examples and are not intended to limit the scope of the disclosure.

Illustratively, the bit map includes at least one bit, where one bit indicates that the beam state of the corresponding beam is changed and remains unchanged with 0 and 1, and indicates that the beam state of the corresponding beam remains unchanged when the bit is 1, and indicates that the beam state of the corresponding beam is changed or fails when the bit is 0. Or vice versa, namely: in the above example, when the bit is 1, the beam state of the corresponding beam may be indicated to be changed or disabled, and when the bit is 0, the beam state of the corresponding beam may be indicated to be unchanged.

It will be appreciated that there are a plurality of beams in the cell served by the base station, and one bit in the bit map corresponds to one or more beams of the base station, so that it can be indicated whether the beam state of the plurality of beams of the base station is changed or remains unchanged by the first indication information including the bit map.

In some embodiments, one bit in the bit map corresponds to one beam of the base station, comprising: in the case where the corresponding beam is a beam measured based on the synchronization signal block SSB, one bit in the bit map corresponds to one SSB number. In some embodiments, one bit in the bit map corresponds to one beam of the base station, comprising: in the case that the corresponding beam is a beam measured based on the channel state information reference signal CSI-RS, one bit in the bit map corresponds to one CSI-RS number.

The bit map includes at least one bit, where the corresponding beam is a beam measured based on the synchronization signal block SSB, one bit in the bit map corresponds to one SSB number, and where the corresponding beam is a beam measured based on the channel state information reference signal CSI-RS, one bit in the bit map corresponds to one CSI-RS number, so as to indicate that the beam state of the beam corresponding to the SSB number or the CSI-RS number is changed or remains unchanged. Wherein, a bit indicates that the beam state of the corresponding beam is changed and remains unchanged by 0 and 1, when the bit is 1, the beam state of the corresponding beam is indicated to remain unchanged, and when the bit is 0, the beam state of the corresponding beam is indicated to be changed or disabled.

It can be understood that there are multiple beams in the cell served by the base station, and information of the beams with changed beam states in the base station is summarized through a list, and the corresponding beam numbers of the beams with changed beam states can be counted in the list, or in the case that the corresponding beams are beams measured based on the synchronization signal block SSB, the corresponding SSB numbers of the beams with changed beam states can be counted in the list, or in the case that the corresponding beams are beams measured based on the channel state information reference signal CSI-RS, the corresponding CSI-RS resource numbers of the beams with changed beam states can be counted in the list.

S52: receiving a measurement result reported by terminal equipment; the measurement result is obtained by the terminal equipment measuring the pilot signal corresponding to the base station beam again in response to the fact that the beam state of the base station beam is determined to be changed according to the first indication information.

In some embodiments, the beam management method provided in the embodiments of the present disclosure further includes: and sending second indication information to the terminal equipment, wherein the second indication information carries the information of the first duration.

In the embodiment of the present disclosure, the second indication information is used to instruct the terminal device to determine the first time according to the information of the first duration carried by the second indication information sent by the base station.

The first duration may be represented by a time unit defined by the wireless communication system, such as a time slot, symbol, or subframe. Of course, the first duration may also be represented by a time duration of a timer.

In some embodiments, the first time period is greater than or equal to zero, and the second indication information indicates that the first time period is the time at which the first indication information was received, plus the first time period.

Of course, the first time and/or the first duration may be determined according to a communication protocol, or the terminal device may determine the first time and/or the first duration by itself.

In the embodiment of the disclosure, the terminal device can determine the first time according to the information of the first time length carried by the second indication information sent by the base station.

In an exemplary embodiment, the first duration indicated by the second indication information of the base station is 3 slots, and the first time is determined to be the time when the first indication information is received, and the first time is added with 3 slots. Of course, the first duration may also be represented by a time duration of a timer.

In some embodiments, in a case where the second time is reached after the first indication information is sent to the terminal device, changing a beam state of a beam sent by the base station; wherein the second time is no later than the first time.

In order to ensure that the terminal equipment receives the first indication information, when the beam of the base station is re-measured, the base station has completed the change of the beam state of the beam of the base station, and in the embodiment of the present disclosure, after the base station sends the first indication information to the terminal equipment, the beam state of the beam sent by the base station is changed under the condition that the second moment is reached; the second time is not later than the first time, so that after the terminal equipment receives the first indication information, the pilot signal corresponding to the beam of the base station is re-measured at the first time which is not earlier than the first time after the terminal equipment receives the first indication information, and the terminal equipment can be ensured to re-measure the beam after the base station has changed.

Wherein, the pilot signal corresponding to the beam of the re-measurement base station comprises: SSB, or CSI-RS.

The first indication information may also refer to the description of the related embodiments of the present disclosure, and the same description is not repeated herein.

In the embodiment of the disclosure, the terminal equipment re-measures the pilot signals corresponding to the base station wave beams to obtain measurement results, and reports the measurement results to the base station. The base station selects a beam according to the measurement result reported by the terminal equipment, and uses MAC CE or PDCCH DCI to inform the beam to the terminal equipment (actually, inform TCI information) according to TCI state information configuration in the original RRC message. If the change of the antenna morphology causes that the SSB configuration or the CSI-RS resource configuration or the original TCI configuration in the RRC message also needs to be changed, the base station initiates an RRC reconfiguration process, for example, the RRCRECONfigure message can be used to send the new SSB configuration or the CSI-RS resource configuration or the original TCI configuration to the terminal equipment. If the terminal equipment can not find the wave beam meeting the reporting configuration according to the original RRC message configuration, the terminal equipment selects proper random access resources to initiate a random access process to the base station according to the relation between the random access resources configured by the RRC message and the wave beam. And the base station performs subsequent data or signaling transmission by taking the beam as the beam according to the relation between the random access resource and the beam or the beam selected by the terminal equipment.

Referring to fig. 6, fig. 6 is a flowchart of another beam management method according to an embodiment of the disclosure.

As shown in fig. 6, the method is applied to a base station, and the method may include, but is not limited to, the following steps:

s61: transmitting first indication information to the terminal equipment through a system information block SIB, or a master information block MIB, or a paging message; the first indication information is used for indicating that the beam state of the base station beam is changed.

S62: receiving a measurement result reported by terminal equipment; the measurement result is obtained by the terminal equipment measuring the pilot signal corresponding to the base station beam again in response to the fact that the beam state of the base station beam is determined to be changed according to the first indication information.

It should be noted that, in the embodiment of the present disclosure, the description of S61 and S62 may be referred to the description of S51 and S52 in the above example, which is not repeated here.

The first time may also refer to the description of the related embodiments of the present disclosure, and the same description is not repeated herein. Likewise, the first duration may refer to the description of the related embodiments of the present disclosure, and the same description is not repeated herein.

Referring to fig. 7, fig. 7 is a flowchart of yet another beam management method according to an embodiment of the disclosure.

As shown in fig. 7, the method is applied to a base station, and may include, but is not limited to, the following steps:

s71: sending third indication information to the terminal equipment; the third indication information is used for indicating the capability of the base station that the antenna form can be changed; or, the third indication information is used for indicating that the base station does not have the capability of changing the antenna form.

In the embodiment of the disclosure, the terminal device may determine whether the base station has the capability of changing the antenna configuration, so as to obtain that the TRP of the cell served by the base station has the capability of changing the antenna configuration, and may dynamically change the beam state of the beam of the base station. In one possible implementation, the terminal device may default that the base station does not have the capability of changing the antenna morphology; and determining that the base station has the capability of changing the antenna form in response to receiving the third indication information sent by the base station. Or vice versa; that is, the terminal device may default to the base station having the capability of changing the antenna morphology.

The third indication information may also refer to the description of the related embodiments of the present disclosure, and the same description is not repeated here.

The terminal device can determine whether the base station has the capability of changing the antenna form according to whether the first indication information sent by the base station is received, and under the condition that the first indication information is received, the base station determines that the base station has the capability of changing the antenna form, and the base station may dynamically change the beam state of the beam of the base station; and under the condition that the first indication information sent by the base station is not received, the base station is determined to have no capability of changing the antenna form, and the beam state of the beam of the base station is determined not to be changed.

It should be noted that S71 may be implemented alone or in combination with any of the other steps in the embodiments of the present disclosure, for example, in combination with S51 and S52 and/or S61 and S62 in the embodiments of the present disclosure, which are not limited in this respect.

In the embodiments provided in the present disclosure, the method provided in the embodiments of the present disclosure is described from the angles of the base station and the terminal device, respectively. In order to implement the functions in the method provided by the embodiments of the present disclosure, the network device and the terminal device may include a hardware structure, a software module, and implement the functions in the form of a hardware structure, a software module, or a hardware structure plus a software module. Some of the functions described above may be implemented in a hardware structure, a software module, or a combination of a hardware structure and a software module.

Referring to fig. 8, in the embodiment provided by the present disclosure, the method provided by the embodiment of the present disclosure is described from the angles of the base station and the terminal device, respectively. In order to implement the functions in the method provided by the embodiments of the present disclosure, the base station and the terminal device may include a hardware structure, a software module, and implement the functions in the form of a hardware structure, a software module, or a hardware structure plus a software module. Some of the functions described above may be implemented in a hardware structure, a software module, or a combination of a hardware structure and a software module.

Fig. 13 is a schematic structural diagram of a communication device 1 according to an embodiment of the disclosure. The communication device 1 shown in fig. 13 may include a transmission module 11 for implementing a transmission function and a reception module 12 for implementing a reception function.

The communication device 1 may be a terminal device, a device in a terminal device, or a device that can be used in cooperation with a terminal device. Alternatively, the communication device 1 may be a base station, a device in a base station, or a device that can be used in cooperation with a base station.

The communication apparatus 1 is a terminal device: comprising the following steps: a transmitting module 11 and a receiving module 12.

A receiving module 12, configured to receive first indication information sent by a base station; the first indication information is used for indicating that the beam state of the base station beam is changed.

And the sending module 11 is configured to re-measure a pilot signal corresponding to the base station beam in response to determining that the beam state of the base station beam is changed according to the first indication information, so as to obtain a measurement result, and report the measurement result to the base station.

In some embodiments, the receiving module 12 is further configured to receive the first indication information sent by the base station through a system information block SIB, or a master information block MIB, or a paging message.

As shown in fig. 9, the communication device 1 further includes: a processing module 13.

In some embodiments, the processing module 13 is configured to determine that the base station has a capability of changing an antenna configuration.

In some embodiments, the receiving module 12 is further configured to receive third indication information sent by the base station; the third indication information is used for indicating the capability of the base station that the antenna form can be changed.

The communication apparatus 1 is a base station: the device comprises: a transmitting module 11 and a receiving module 12.

A sending module 11, configured to send first indication information to a terminal device; the first indication information is used for indicating that the beam state of the base station beam is changed.

A receiving module 12, configured to receive a measurement result reported by the terminal device; the measurement result is obtained by the terminal equipment in response to the fact that the beam state of the base station beam is determined to be changed according to the first indication information, and pilot signals corresponding to the base station beam are measured again.

In some embodiments, the first indication information includes: a bit map; wherein, one bit in the bit map corresponds to one beam of the base station, and is used for indicating that the beam state of the corresponding beam is changed or remains unchanged.

In some embodiments, one bit in the bit map corresponds to one beam of the base station, comprising: in the case that the corresponding beam is a beam measured based on the synchronization signal block SSB, one bit in the bit map corresponds to one SSB number; in the case that the corresponding beam is a beam measured based on the channel state information reference signal CSI-RS, one bit in the bit map corresponds to one CSI-RS number.

In some embodiments, the sending module 11 is further configured to send second indication information to the terminal device, where the second indication information carries information of the first duration; the first time is used for indicating the terminal equipment to determine the first time for measuring the pilot signal corresponding to the base station wave beam again.

In some embodiments, the first time period is greater than or equal to zero, and the second indication information is used to indicate that the first time period is the time period when the first indication information is received, plus the first time period.

With continued reference to fig. 9, the communication device 1 further includes: a processing module 13.

In some embodiments, the processing module 13 is configured to change a beam state of a beam sent by the base station in response to reaching the second time after sending the first indication information to the terminal device; wherein the second time is no later than the first time.

In some embodiments, the sending module 11 is further configured to send third indication information to the terminal device; the third indication information is used for indicating the capability of the base station that the antenna form can be changed; or, the third indication information is used for indicating that the base station does not have the capability of changing the antenna form.

With respect to the communication apparatus 1 in the above-described embodiment, the specific manner in which the respective modules perform operations has been described in detail in the embodiment concerning the method, and will not be explained in detail here. The communication device 1 provided in the above embodiments of the present disclosure achieves the same or similar advantages as the communication method provided in some of the above embodiments, and will not be described herein.

Referring to fig. 10, fig. 10 is a schematic structural diagram of another communication device 1000 according to an embodiment of the disclosure. The communication device 1000 may be a base station, a terminal device, a chip system, a processor, or the like that supports the base station to implement the above method, or a chip, a chip system, a processor, or the like that supports the terminal device to implement the above method. The communication device 1000 may be used to implement the method described in the above method embodiments, and reference may be made in particular to the description of the above method embodiments.

The communication device 1000 may be a base station, a terminal device, a chip system, a processor, or the like that supports the base station to implement the above method, or a chip, a chip system, a processor, or the like that supports the terminal device to implement the above method. The device can be used for realizing the method described in the method embodiment, and can be particularly referred to the description in the method embodiment.

The communications device 1000 may include one or more processors 1001. The processor 1001 may be a general purpose processor or a special purpose processor, or the like. For example, a baseband processor or a central processing unit. The baseband processor may be used to process communication protocols and communication data, and the central processor may be used to control communication devices (e.g., base stations, baseband chips, terminal equipment chips, DUs or CUs, etc.), execute computer programs, and process data of the computer programs.

Optionally, the communication device 1000 may further include one or more memories 1002, on which a computer program 1004 may be stored, where the memory 1002 executes the computer program 1004, so that the communication device 1000 performs the method described in the above method embodiments. Optionally, the memory 1002 may also store data. The communication device 1000 and the memory 1002 may be provided separately or may be integrated.

Optionally, the communication device 1000 may further comprise a transceiver 1005, an antenna 1006. The transceiver 1005 may be referred to as a transceiver unit, a transceiver circuit, or the like, for implementing a transceiver function. The transceiver 1005 may include a receiver, which may be referred to as a receiver or a receiving circuit, etc., for implementing a receiving function, and a transmitter; the transmitter may be referred to as a transmitter or a transmitting circuit, etc., for implementing a transmitting function.

Optionally, one or more interface circuits 1007 may also be included in the communications apparatus 1000. The interface circuit 1007 is used to receive code instructions and transmit them to the processor 1001. The processor 1001 executes the code instructions to cause the communication device 1000 to perform the method described in the method embodiments described above.

The communication apparatus 1000 is a terminal device: the transceiver 1005 is used to perform S21 and S22 in fig. 2; s31 and S32 in fig. 3; the processor 1001 is configured to execute S41 in fig. 4.

The communication apparatus 1000 is a base station: the transceiver 1005 is used to perform S51 and S52 in fig. 5; s61 and S62 in fig. 6; the processor 1001 is configured to execute S71 in fig. 7.

In one implementation, a transceiver for implementing the receive and transmit functions may be included in the processor 1001. For example, the transceiver may be a transceiver circuit, or an interface circuit. The transceiver circuitry, interface or interface circuitry for implementing the receive and transmit functions may be separate or may be integrated. The transceiver circuit, interface or interface circuit may be used for reading and writing codes/data, or the transceiver circuit, interface or interface circuit may be used for transmitting or transferring signals.

In one implementation, the processor 1001 may store a computer program 1003, where the computer program 1003 runs on the processor 1001, and may cause the communication device 1000 to execute the method described in the above method embodiment. The computer program 1003 may be solidified in the processor 1001, in which case the processor 1001 may be implemented by hardware.

In one implementation, the communications apparatus 1000 can include circuitry that can implement the functions of transmitting or receiving or communicating in the foregoing method embodiments. The processors and transceivers described in this disclosure may be implemented on integrated circuits (integrated circuit, ICs), analog ICs, radio frequency integrated circuits RFICs, mixed signal ICs, application specific integrated circuits (application specific integrated circuit, ASIC), printed circuit boards (printed circuit board, PCB), electronic devices, and the like. The processor and transceiver may also be fabricated using a variety of IC process technologies such as complementary metal oxide semiconductor (complementary metal oxide semiconductor, CMOS), N-type metal oxide semiconductor (NMOS), P-type metal oxide semiconductor (positive channel metal oxide semiconductor, PMOS), bipolar junction transistor (bipolar junction transistor, BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.

The communication apparatus in the above embodiment description may be a terminal device, but the scope of the communication apparatus described in the present disclosure is not limited thereto, and the structure of the communication apparatus may not be limited by fig. 10. The communication means may be a stand-alone device or may be part of a larger device. For example, the communication device may be:

(1) A stand-alone integrated circuit IC, or chip, or a system-on-a-chip or subsystem;

(2) A set of one or more ICs, optionally including storage means for storing data, a computer program;

(3) An ASIC, such as a Modem (Modem);

(4) Modules that may be embedded within other devices;

(5) A receiver, a terminal device, an intelligent 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 intelligent device, and the like;

(6) Others, and so on.

In the case where the communication device may be a chip or a chip system, please refer to fig. 11, which is a block diagram of a chip provided in an embodiment of the disclosure.

Chip 1100 includes processor 1101 and interface 1103. Wherein the number of processors 1101 may be one or more, and the number of interfaces 1103 may be a plurality.

For the case where the chip is used to implement the functions of the terminal device in the embodiments of the present disclosure:

an interface 1103 for receiving the code instruction and transmitting the code instruction to the processor.

A processor 1101 for executing code instructions to perform the beam management method as described in some embodiments above.

For the case where the chip is used to implement the functions of the base station in the embodiments of the present disclosure:

Optionally, the chip 1100 further comprises a memory 1102, the memory 1102 being used for storing the necessary computer programs and data.

Those of skill in the art will further appreciate that the various illustrative logical blocks (illustrative logical block) and steps (step) described in connection with the embodiments of the disclosure may be implemented by electronic hardware, computer software, or combinations of both. Whether such functionality is implemented as hardware or software depends upon the particular application and design requirements of the overall system. Those skilled in the art may implement the described functionality in varying ways for each particular application, but such implementation is not to be understood as beyond the scope of the embodiments of the present disclosure.

The embodiment of the present disclosure also provides a communication system, which includes the communication device as a terminal device and the communication device as a base station in the embodiment of fig. 8, or includes the communication device as a terminal device and the communication device as a base station in the embodiment of fig. 10.

The present disclosure also provides a readable storage medium having instructions stored thereon which, when executed by a computer, perform the functions of any of the method embodiments described above.

The present disclosure also provides a computer program product which, when executed by a computer, performs the functions of any of the method embodiments described above.

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product comprises one or more computer programs. When the computer program is loaded and executed on a computer, the flow or functions described in accordance with the embodiments of the present disclosure are produced in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer program may be stored in or transmitted from one computer readable storage medium to another, for example, by wired (e.g., coaxial cable, optical fiber, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means from one website, computer, server, or data center. The computer readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains an integration of one or more available media. The usable medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a high-density digital video disc (digital video disc, DVD)), or a semiconductor medium (e.g., a Solid State Disk (SSD)), or the like.

Those of ordinary skill in the art will appreciate that: the various numbers of first, second, etc. referred to in this disclosure are merely for ease of description and are not intended to limit the scope of embodiments of this disclosure, nor to indicate sequencing.

At least one of the present disclosure may also be described as one or more, a plurality may be two, three, four or more, and the present disclosure is not limited. In the embodiment of the disclosure, for a technical feature, the technical features in the technical feature are distinguished by "first", "second", "third", "a", "B", "C", and "D", and the technical features described by "first", "second", "third", "a", "B", "C", and "D" are not in sequence or in order of magnitude.

The correspondence relationships shown in the tables in the present disclosure may be configured or predefined. The values of the information in each table are merely examples, and may be configured as other values, and the present disclosure is not limited thereto. In the case of the correspondence between the configuration information and each parameter, it is not necessarily required to configure all the correspondence shown in each table. For example, in the table in the present disclosure, the correspondence shown by some rows may not be configured. For another example, appropriate morphing adjustments, e.g., splitting, merging, etc., may be made based on the tables described above. The names of the parameters indicated in the tables may be other names which are understood by the communication device, and the values or expressions of the parameters may be other values or expressions which are understood by the communication device. When the tables are implemented, other data structures may be used, for example, an array, a queue, a container, a stack, a linear table, a pointer, a linked list, a tree, a graph, a structure, a class, a heap, a hash table, or a hash table.

Predefined in this disclosure may be understood as defining, predefining, storing, pre-negotiating, pre-configuring, curing, or pre-sintering.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present disclosure.

It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, and are not repeated herein.

The foregoing is merely specific embodiments of the disclosure, but the protection scope of the disclosure is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the disclosure, and it is intended to cover the scope of the disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.

Claims

A method of beam management, the method being applied to a terminal device, the method comprising:

receiving first indication information sent by a base station; the first indication information is used for indicating the change of the beam state of the beam of the base station;

and in response to the fact that the beam state of the base station beam is changed according to the first indication information, measuring the pilot signals corresponding to the base station beam again to obtain a measurement result, and reporting the measurement result to the base station.
The method of claim 1, wherein the receiving the first indication information sent by the base station includes:

and receiving the first indication information sent by the base station through a system information block SIB, or a master information block MIB, or a paging message.
The method according to claim 1 or 2, wherein the first indication information is used for indicating that the beam state of the base station beam is changed, and comprises at least one of the following:

the first indication information is used for indicating that the current wave beam of the base station is changed;

the first indication information is used for indicating the current beam failure of the base station;

the first indication information is used for indicating that all current beams of the base station are changed;

The first indication information is used for indicating that all current beams of the base station fail;

the first indication information is used for indicating that the current partial wave beam of the base station is changed;

the first indication information is used for indicating that the current partial beam of the base station fails.
A method according to any of claims 1-3, characterized in that the first indication information is used to indicate that the beam state of all or part of the beams of the base station remains unchanged.
The method of claim 4, wherein the first indication information comprises at least: a bit map; wherein, a bit in the bit map corresponds to a beam of the base station, and is used for indicating that the beam state of the corresponding beam is changed or remains unchanged.
The method of claim 5, wherein one bit of the bit map corresponds to one beam of the base station, comprising at least one of:

responding to the corresponding beam as a beam for measuring based on the synchronous signal block SSB, wherein one bit in the bit map corresponds to one SSB number;

and

and responding to the corresponding beam as a beam for measuring based on the channel state information reference signal (CSI-RS), wherein one bit in the bit bitmap corresponds to one CSI-RS number.
The method of claim 4, wherein the first indication information comprises at least: a list; wherein the list indicates beams of which beam states are changed among the base station beams.
The method of claim 7, wherein the list comprises: in the base station beams, beam numbers corresponding to the beams with changed beam states are obtained; or, in the base station beam, the CSI-RS resource number corresponding to the beam with changed beam state, or, in the base station beam, the SSB number corresponding to the beam with changed beam state.
The method according to any one of claims 1 to 8, further comprising: determining a first moment for re-measuring pilot signals corresponding to the base station wave beams; wherein the first time is determined by any one of:

determining the first moment according to a first duration determined by a communication protocol;

or alternatively, the process may be performed,

receiving second indication information sent by the base station; the second indication information carries information for indicating the first duration; and determining the first moment according to the second indication information.
The method of claim 9, wherein the first time period is greater than or equal to zero, and wherein the determining the first time period comprises:

the first moment is determined as follows: and adding the first duration to the moment when the first indication information is received.
The method according to any of claims 1 to 10, wherein the change in beam state of the base station beam is caused by a change in antenna morphology of the base station.
The method according to any one of claims 1 to 11, further comprising:

and determining that the base station has the capability of changing the antenna form.
The method according to claim 12, wherein the method further comprises:

receiving third indication information sent by the base station; the third indication information is used for indicating that the base station has the capability of changing the antenna form.
A method of beam management, the method being applied to a base station, the method comprising:

sending first indication information to terminal equipment; the first indication information is used for indicating the change of the beam state of the beam of the base station;

receiving a measurement result reported by the terminal equipment; the measurement result is obtained by the terminal equipment in response to the fact that the beam state of the base station beam is determined to be changed according to the first indication information, and pilot signals corresponding to the base station beam are measured again.
The method of claim 14, wherein the sending the first indication information to the terminal device comprises:

and sending the first indication information to the terminal equipment through a system information block SIB, a master information block MIB or a paging message.
The method according to claim 14 or 15, wherein the first indication information is used for indicating that the beam state of the base station beam is changed, and comprises one of the following:

the first indication information is used for indicating that the current wave beam of the base station is changed;

the first indication information is used for indicating the current beam failure of the base station;

the first indication information is used for indicating that all current beams of the base station are changed;

the first indication information is used for indicating that all current beams of the base station fail;

the first indication information is used for indicating that the current partial wave beam of the base station is changed;

the first indication information is used for indicating that the current partial beam of the base station fails.
The method according to any of the claims 14 to 16, wherein the first indication information is further used to indicate that the beam state of all or part of the base station beam remains unchanged.
The method of claim 17, wherein the first indication information comprises: a bit map; wherein, a bit in the bit map corresponds to a beam of the base station, and is used for indicating that the beam state of the corresponding beam is changed or remains unchanged.
The method of claim 18, wherein one bit of the bit map corresponds to one beam of the base station, comprising:

in the case that the corresponding beam is a beam measured based on the synchronization signal block SSB, one bit in the bit map corresponds to one SSB number;

in the case that the corresponding beam is a beam measured based on the channel state information reference signal CSI-RS, one bit in the bit map corresponds to one CSI-RS number.
The method of claim 19, wherein the first indication information comprises: a list; and the list indicates beams with changed or unchanged beam states in the beams sent by the base station.
The method of claim 19, wherein the list indicates beam numbers corresponding to beams whose beam states change or remain unchanged among beams transmitted by the base station; or, indicating the CSI-RS resource number corresponding to the beam with the changed or unchanged beam state in the beam sent by the base station; or, the SSB number corresponding to the beam with the changed or unchanged beam state in the beam sent by the base station is indicated.
The method according to any one of claims 14 to 21, further comprising:

sending second indication information to the terminal equipment, wherein the second indication information carries information for indicating the first duration; the first time is used for indicating the terminal equipment to determine the first time for measuring the pilot signal corresponding to the base station wave beam again.
The method of claim 20, wherein the first time period is greater than or equal to zero, and the second indication information is used to indicate that the first time period is: and adding the first duration to the moment when the first indication information is received.
The method according to any of claims 14 to 23, wherein the change in beam state of the base station beam is caused by a change in antenna morphology of the base station.
The method according to any one of claims 14 to 24, further comprising:

changing the beam state of a beam transmitted by the base station in response to reaching a second moment after the first indication information is transmitted to the terminal equipment; wherein the second time is no later than the first time.
The method according to any one of claims 14 to 25, further comprising:

sending third indication information to the terminal equipment; the third indication information is used for indicating that the base station has the capability of changing the antenna form; or, the third indication information is used for indicating that the base station does not have the capability of changing the antenna form.
A communication device, comprising:

the receiving module is used for receiving the first indication information sent by the base station; the first indication information is used for indicating the change of the beam state of the beam of the base station;

and the sending module is used for re-measuring the pilot signals corresponding to the base station beam in response to the change of the beam state of the base station beam according to the first indication information so as to obtain a measurement result and reporting the measurement result to the base station.
A communication device, comprising:

the sending module is used for sending the first indication information to the terminal equipment; the first indication information is used for indicating the change of the beam state of the beam of the base station;

the receiving module is used for receiving the measurement result reported by the terminal equipment; the measurement result is obtained by the terminal equipment in response to the fact that the beam state of the base station beam is determined to be changed according to the first indication information, and pilot signals corresponding to the base station beam are measured again.
A communication device, characterized in that the device comprises a processor and a memory, the memory having stored therein a computer program, the processor executing the computer program stored in the memory to cause the device to perform the method according to any one of claims 1 to 13 or the processor executing the computer program stored in the memory to cause the device to perform the method according to any one of claims 14 to 26.
A communication device, comprising: a processor and interface circuit;

the interface circuit is used for receiving code instructions and transmitting the code instructions to the processor;

the processor for executing the code instructions to perform the method of any one of claims 1 to 13 or executing the code instructions to perform the method of any one of claims 14 to 26.
A computer readable storage medium storing instructions which, when executed, cause the method of any one of claims 1 to 13 to be implemented or which, when executed, cause the method of any one of claims 14 to 26 to be implemented.