CN116965082A - Beam management method and device - Google Patents

Abstract

Embodiments of the present disclosure disclose a beam management method and device. The method includes: a terminal device receiving first indication information sent by a base station; wherein the first indication information is used to indicate a change in the beam state of the base station beam; in response to a change in the beam state of the base station beam; When the indication information determines that the beam state of the base station beam has changed, the pilot signal corresponding to the base station beam is re-measured to obtain the measurement results, and the measurement results are reported to the base station. By implementing the embodiments of the present disclosure, the base station is supported to proactively send the first indication information to the terminal device, indicating that the beam status of the base station beam has changed. There is no need for the terminal device to perform downlink measurements, determine the beam failure, and then report the process of discovering the beam failure, which can reduce transmission time. delay and reduce signaling overhead.

Description

Beam management method and device Technical field

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

Background technique

Multi-antenna technology is widely used in wireless communication systems to improve system performance. For example, the third generation (3G) cellular mobile communication system uses a multi-antenna system to provide diversity or shaping gain, the fourth generation long term evolution (4G LTE) and the fifth generation new air interface (Fifth Generation) In New Radio (5G NR) systems, multi-antenna arrays are widely used to achieve space diversity, space division multiplexing or beam forming to improve the data transmission rate or business coverage capabilities of the system.

In existing multi-antenna technology or large-scale array antenna technology, the default antenna shape is usually fixed. However, when the antenna shape can be changed and the beam state of the base station beam changes, there is still a lack of effective beam management methods.

Contents of the invention

Embodiments of the present disclosure provide a beam management method and device. When the antenna form of the base station changes and the beam state of the base station beam changes, it can solve the problem of using related technologies to solve the problem of terminal equipment initiating a beam failure recovery process or sending an uplink SRS. The base station measurement method for beam adjustment solves the problems of large signaling overhead and transmission delay. It reduces signaling overhead and transmission delay and improves system performance.

In a first aspect, embodiments of the present disclosure provide a beam management method, which method is applied to a terminal device. The method includes: receiving first indication information sent by a base station; wherein the first indication information is used to indicate a beam of a base station beam. The state changes; in response to determining that the beam state of the base station beam changes according to the first indication information, re-measure the pilot signal corresponding to the base station beam to obtain the measurement result, and report the measurement result to the Describe the base station.

In this technical solution, the base station is supported to actively send the first indication information to the terminal equipment, indicating that the beam status of the base station beam has changed, so as to inform the terminal equipment. There is no need for the terminal equipment to perform downlink measurements, determine the beam failure, and then report the process of discovering the beam failure. It can reduce transmission delay and signaling overhead.

In a second aspect, embodiments of the present disclosure provide another beam management method, which method is applied to a base station. The method includes: sending first indication information to a terminal device; wherein the first indication information is used to indicate a beam of a base station beam. The state changes; receiving the measurement result reported by the terminal device; wherein the measurement result is that the terminal device re-measures the base station in response to determining that the beam state of the base station beam changes according to the first indication information. The pilot signal corresponding to the beam is obtained.

In a third aspect, embodiments of the present disclosure provide a communication device that has some or all of the functions of the terminal device for implementing the method described in the first aspect. For example, the functions of the communication device may have some or all of the functions of the present disclosure. The functions in the embodiments may also be used to independently implement any of the embodiments of the present disclosure. The functions described can be implemented by hardware, or can be implemented by hardware executing corresponding software. The hardware or software includes one or more units or modules corresponding to the above functions.

In one implementation, the structure of the communication device may include a transceiver module and a processing module, and the processing module is configured to support the communication device to perform corresponding functions in the above method. The transceiver module is used to support communication between the communication device and other devices. The communication device may further include a storage module coupled to the transceiver module and the processing module, which stores necessary computer programs and data for 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: a receiving module, configured to receive first indication information sent by a base station; wherein the first indication information is used to indicate a change in the beam state of a base station beam; and a sending module, configured to In response to determining that the beam state of the base station beam changes according to the first indication information, re-measure the pilot signal corresponding to the base station beam to obtain a measurement result, and report the measurement result to the base station.

In the fourth aspect, embodiments of the present disclosure provide another communication device that has some or all of the functions of the network device in the method example described in the second aspect. For example, the functions of the communication device may have some of the functions in the present disclosure. Or the functions in all the embodiments may also be provided to implement the functions of any one embodiment in the present disclosure independently. The functions described can be implemented by hardware, or can be implemented by hardware executing corresponding software. The hardware or software includes one or more units or modules corresponding to the above functions.

In one implementation, the structure of the communication device may include a transceiver module and a processing module, and the processing module is configured to support the communication device to perform corresponding functions in the above method. The transceiver module is used to support communication between the communication device and other devices. The communication device may further include a storage module coupled to the transceiver module and the processing module, which stores necessary computer programs and data for the communication device.

In one implementation, the communication device includes: a sending module, configured to send first indication information to the terminal device; wherein the first indication information is used to indicate a change in the beam state of the base station beam; a receiving module, configured to In receiving the measurement result reported by the terminal device; wherein the measurement result is that the terminal device re-measures the beam state corresponding to the base station beam in response to determining that the beam state of the base station beam has changed according to the first indication information. The pilot signal is obtained.

In a fifth aspect, an embodiment of the present disclosure provides a communication device. The communication device includes a processor. When the processor calls a computer program in a memory, it executes the method described in the first aspect.

In a sixth aspect, an embodiment of the present disclosure provides a communication device. The communication device includes a processor. When the processor calls a computer program in a memory, it executes the method described in the second aspect.

In a seventh aspect, an embodiment of the present disclosure provides a communication device. The communication device includes a processor and a memory, and a computer program is stored in the memory; the processor executes the computer program stored in the memory, so that the communication device executes The method described in the first aspect above.

In an eighth aspect, an embodiment of the present disclosure provides a communication device. The communication device includes a processor and a memory, and a computer program is stored in the memory; the processor executes the computer program stored in the memory, so that the communication device executes The method described in the second aspect above.

In a ninth aspect, an embodiment of the present disclosure provides a communication device. The device includes a processor and an interface circuit. The interface circuit is used to receive code instructions and transmit them to the processor. The processor is used to run the code instructions to cause the The device performs the method described in the first aspect.

In a tenth aspect, an embodiment of the present disclosure provides a communication device. The device includes a processor and an interface circuit. The interface circuit is used to receive code instructions and transmit them to the processor. The processor is used to run the code instructions to cause the The device performs the method described in the second aspect above.

In an eleventh aspect, an embodiment of the present disclosure provides a beam management system, which includes the communication device described in the third aspect and the communication device described in the fourth aspect, or the system includes the communication device described in the fifth aspect. And the communication device described in the sixth aspect, or the system includes the communication device described in the seventh aspect and the communication device described in the eighth aspect, or the system includes the communication device described in the ninth aspect and the tenth aspect the communication device.

In a twelfth aspect, embodiments of the present invention provide a computer-readable storage medium for storing instructions used by the above-mentioned terminal equipment. When the instructions are executed, the terminal equipment is caused to execute the above-mentioned first aspect. method.

In a thirteenth aspect, embodiments of the present invention provide a readable storage medium for storing instructions used by the base station. When the instructions are executed, the network device is caused to execute the method described in the second aspect.

In a fourteenth aspect, the present disclosure also provides a computer program product including a computer program, which when run on a computer causes the computer to execute the method described in the first aspect.

In a fifteenth aspect, the present disclosure also provides a computer program product including a computer program, which, when run on a computer, causes the computer to execute the method described in the second aspect.

In a sixteenth aspect, the present disclosure provides a chip system, which includes at least one processor and an interface for supporting a terminal device to implement the functions involved in the first aspect, for example, determining or processing data involved in the above method. and information. In a possible design, the chip system further includes a memory, and the memory is used to store necessary computer programs and data for the terminal device. The chip system may be composed of chips, or may include chips and other discrete devices.

In a seventeenth aspect, the present disclosure provides a chip system, which includes at least one processor and an interface for supporting the base station to implement the functions involved in the second aspect, for example, determining or processing the data involved in the above method and at least one of the information. In a possible design, the chip system further includes a memory, and the memory is used to store necessary computer programs and data for the base station. The chip system may be composed of chips, or may include chips and other discrete devices.

In an eighteenth aspect, the present disclosure provides a computer program that, when run on a computer, causes the computer to execute the method described in the first aspect.

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

Description of the drawings

In order to more clearly illustrate the technical solutions in the embodiments of the disclosure or the background technology, the drawings required to be used in the embodiments or the background technology of the disclosure will be described below.

Figure 1 is an architectural diagram of a communication system provided by an embodiment of the present disclosure;

Figure 2 is a flow chart of a beam management method provided by an embodiment of the present disclosure;

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

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

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

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

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

Figure 8 is a structural diagram of a communication device provided by an embodiment of the present disclosure;

Figure 9 is a structural diagram of another communication device provided by an embodiment of the present disclosure;

Figure 10 is a structural diagram of yet another communication device provided by an embodiment of the present disclosure;

FIG. 11 is a schematic structural diagram of a chip provided by an embodiment of the present disclosure.

Detailed ways

In order to better understand the beam management method and device disclosed in the embodiments of the present disclosure, the communication system to which the embodiments of the present disclosure are applicable is first described below.

Please refer to FIG. 1 , which is a schematic architectural diagram of a communication system provided by an embodiment of the present disclosure. The communication system may include but is not limited to one network device and one terminal device. The number and form of devices shown in Figure 1 are only for examples and do not constitute a limitation on the embodiments of the present disclosure. In actual applications, two or more devices may be included. Network equipment, two or more terminal devices. The communication system shown in Figure 1 includes a base station 101 and a terminal device 102 as an example.

It should be noted that the technical solutions of the embodiments of the present disclosure can be applied to various communication systems. For example: long term evolution (LTE) system, fifth generation (5th generation, 5G) mobile communication system, 5G new radio (NR) system, or other future new mobile communication systems. It should also be noted that the side link in the embodiment of the present disclosure may also be called a side link or a through link.

The base station 101 in the embodiment of the present disclosure is an entity on the network side that is used to transmit or receive signals. For example, the base station 101 may be an evolved base station (evolved NodeB, eNB), a transmission reception point (TRP), a next generation base station (next generation NodeB, gNB) in an NR system, a base station in other future mobile communication systems, or Access nodes in wireless fidelity (WiFi) systems, etc. The embodiments of the present disclosure do not limit the specific technologies and specific equipment forms used by network equipment. The network device provided by the embodiments of the present disclosure may be composed of a centralized unit (CU) and a distributed unit (DU). The CU may also be called a control unit (control unit). CU-DU is used. The structure can separate the protocol layers of network equipment, such as base stations, and place some protocol layer functions under centralized control on the CU. The remaining part or all protocol layer functions are distributed in the DU, and the CU centrally controls the DU.

The terminal device 102 in the embodiment of the present disclosure is an entity on the user side that is used to receive or transmit signals, such as a mobile phone. Terminal equipment may also be called terminal equipment (terminal), user equipment (user equipment, UE), mobile station (mobile station, MS), mobile terminal equipment (mobile terminal, MT), etc. The terminal device can be a car with communication functions, a smart car, a mobile phone, a wearable device, a tablet (Pad), a computer with wireless transceiver functions, a virtual reality (VR) terminal device, an augmented reality ( augmented reality (AR) terminal equipment, wireless terminal equipment in industrial control, wireless terminal equipment in self-driving, wireless terminal equipment in remote medical surgery, smart grid ( Wireless terminal equipment in smart grid, wireless terminal equipment in transportation safety, wireless terminal equipment in smart city, wireless terminal equipment in smart home, etc. The embodiments of the present disclosure do not limit the specific technology and specific equipment form used by the terminal equipment.

It can be understood that the communication system described in the embodiments of the present disclosure is to more clearly illustrate the technical solutions of the embodiments of the present disclosure, and does not constitute a limitation on the technical solutions provided by the embodiments of the present disclosure. As those of ordinary skill in the art will know, With the evolution of system architecture and the emergence of new business scenarios, the technical solutions provided by the embodiments of the present disclosure are also applicable to similar technical problems.

In related technologies, in multi-antenna technology or large-scale array antenna technology, the default antenna form is usually fixed. For example, in the 5G NR system, the antenna beam direction and propagation characteristics are mainly changed through analog beamforming and digital beamforming, and the range of change is limited by the fixed antenna form. The beam management process is used between the base station and the terminal equipment to maintain a better or optimal transmit and receive beam pairing (beam pair or beam correspondence). During initial access, the terminal device needs to first determine the better or optimal downlink beam, and then use the random access resource corresponding to the beam to initiate random access. Using the predetermined correspondence between random access resources and downlink beams, the initial beam pairing can be established. When the wireless propagation environment changes or the terminal moves, causing the performance of the original beam pairing to deteriorate, beam adjustment can be used to change the beam pairing. When the wireless channel changes drastically and the beam adjustment cannot be used to change it, the beam pairing can be reselected through the beam failure recovery process. Since the changes in the wireless propagation environment are independent for each terminal device in the cell, occurs, so in the 5G NR system, terminal equipment needs to independently perform downlink measurement and reporting of beams, or independently send SRS (Sounding Reference Signal, uplink detection reference signal) for measurement by the base station to perform beam adjustment, and the beam fails. The recovery process is initiated independently by the end device.

When the antenna form changes, the beams from the corresponding antenna device to all terminal devices in the entire cell may change. In this case, if the methods in the related technologies are still used, a large number of terminal devices within the coverage of a cell may Initiates the beam adjustment or beam failure recovery process. There will be a certain delay from downlink measurement, beam failure determination, and terminal device reporting. That is, the beam failure recovery process takes a certain amount of time, which increases the transmission delay of the system. In addition, since a large number of terminal devices are involved, a large number of signaling bursts will occur at the same time, causing congestion on the control channel, thereby affecting system performance. New beam management technology is urgently needed to solve the problem of beam management under changeable antenna shapes.

Based on this, embodiments of the present disclosure provide a beam management method to implement beam management when the antenna shape changes and the beam state of the base station beam changes, thereby reducing transmission delay and improving system performance.

In wireless communication systems that use multi-antenna technology and the antenna shape can be changed. For example, in the 5G NR system, the TRP (Transmission and Reception Point, transmission and reception node) of the base station usually adopts a certain antenna form and corresponding shaping parameters, so that the wireless signal transmission and reception of the TRP can cover or serve a specific area. spatial range. A variety of connection methods can be used between the antenna unit and the transceiver unit to achieve a hybrid of analog beamforming and digital beamforming. The service range of one or more TRPs forms a cell, and analog beamforming is often the primary factor in determining cell coverage. Usually analog beamforming is a wide beam with a large coverage area, and one cell corresponds to one analog beam. In frequency bands such as millimeter waves, beamforming technology can also be used to form multiple beams in different directions. These beams have a narrow width but a longer propagation distance. These beams form a beam group, and the beams in the group can be sent in turn through time division multiplexing. Within a time period, through beam sweeping, they jointly serve a cell coverage area. A downlink beam is usually associated with an SSB (Synchronization Signal Block, synchronization signal block) or CSI-RS (Channel State Information-Reference Signal, channel state information reference signal) configuration. When beam scanning is used, a TRP can be configured with N beams, and the terminal device may also be configured with M beams, where M and N are positive integers. The transmit beam and the receive beam form a beam pair. Obviously, there are many possible combinations of beam pairing, among which the beam pairing with better performance or the best performance is used for the transmission of data signals, which can improve the service. Note that the beam here is a beam belonging to the TRP, which is paired with a certain beam of the terminal device to form a better or optimal beam.

The base station periodically sends SSB including PSS (Primary Synchronization Signal, primary synchronization signal), SSS (Secondary Synchronization Signal, secondary synchronization signal) and PBCH (Physical Broadcast Channel, physical broadcast channel). Different downlink beams (generally analog beams) can correspond to different SSBs. The transmission period of SSB in 5G NR can be 5, 10, 20, 40, 80 or 160 milliseconds, etc. If beam scanning is used, the above period is the transmission period of one beam. The minimum transmission interval between multiple beams can be 5ms. Before the terminal device accesses the cell, it needs to detect the PSS and SSS, and then obtain the SSB number information by receiving and decoding the PBCH. Based on the correspondence between the SSB number and the random access resource, the terminal device initiates random access to the base station on the appropriate random access resource after selecting the cell and beam, thereby establishing the initial beam pairing. When the random access process is successful and the RRC (Radio Resource Control, Radio Resource Control) connection is established, the terminal device will think that the base station will use the same analog beam as the selected beam for subsequent wireless signal transmission and reception. The terminal device will also continue to use the receive beam used in the random access process to receive wireless signals. Taking into account channel reciprocity, the same beam can also be used for uplink signal transmission.

The terminal equipment in the RRC connected state measures multiple transmit beams from the TRP according to the SSB or CSI-RS information configured by the base station; and according to the reported configuration, it will include the number of the beam and the parameters indicating the beam performance (such as RSRP (Reference The measurement results of Signal Receive Power (reference signal receiving power) or RSRQ (Reference Signal Receiving Quality (reference signal receiving quality)) are reported to the base station. The terminal equipment can also use different receive beams to measure the RSRP or RSRQ of the reference signal for the same transmit beam to determine the receive beam; where the receive beam can be a better or optimal receive beam. For uplink transmission, the optimal downlink beam pairing can be directly used for uplink based on the reciprocity of the uplink and downlink channels, and the SRS can also be sent by the terminal device. The base station selects a better or optimal uplink receiving beam by measuring SRS. When the wireless signal propagation environment changes or the terminal moves, the best or optimal beam reported by the terminal device will change, or the best or optimal beam determined through SRS measurement will change. In this case, the base station can change the beam to provide services to the terminal device. Note that the best or optimal beam reported by the terminal device may be one or multiple, depending on the channel status and system configuration. The base station can select a beam among the better or optimal beams reported by the terminal device, or select a beam in combination with other factors to provide services for the terminal device. The current 5G NR protocol supports base stations to configure multiple beams for terminal devices through Radio Resource Control (RRC) messages. The CE (Control Element, control element) of the MAC (Media Access Control, media access control) can further indicate a subset of candidate beams. DCI (Downlink Control Information, downlink control information) transmitted on PDCCH (Physical Downlink Control Channel, physical downlink control channel) can indicate the beam ultimately used for data signal transmission. In the 5G NR standard, beam indication is actually the corresponding relationship between PDCCH or PDSCH (physical downlink shared channel, physical downlink shared channel) and SSB or CSI-RS, that is, it indicates that PDCCH or PDSCH uses the same beam as a certain SSB or CSI-RS. Analog beam. This correspondence is represented by TCI (Transmission Configuration Indication) status.

If the wireless channel changes drastically and the beam adjustment method described above cannot be used to change the beam in time, the beam pairing can be reselected through the beam failure recovery (Beam Failure Recovery) process. If the RSRP or RSRQ of the SSB or CSI-RS is lower than a preconfigured threshold, the terminal device considers that a beam failure instance has occurred. When multiple beam failure instances exceeding a certain threshold occur continuously, the terminal device can initiate a beam failure recovery process. At this time, the terminal device needs to re-determine beam pairing and initiate a random access request to the base station through the random access channel. Since there is a pre-agreed relationship between random access channel resources and beams, the base station can learn the better or optimal beam selected by the terminal device and use the beam for subsequent communications.

In the embodiments of the present disclosure, a beam management method is provided. When the antenna form of the base station changes and the beam state of the base station beam changes, it can solve the problem of using related technologies that the terminal equipment initiates a beam failure recovery process or sends an uplink SRS. The method of beam adjustment based on base station measurement solves the problems of large signaling overhead and transmission delay. It reduces signaling overhead and transmission delay and improves system performance.

Please refer to Figure 2. Figure 2 is a flow chart of a beam management method provided by an embodiment of the present disclosure.

As shown in Figure 2, this method is applied to terminal equipment. This method may include but is not limited to the following steps:

S21: Receive the first indication information sent by the base station; wherein the first indication information is used to indicate that the beam state of the base station beam changes.

Based on the above discussion, it can be seen that in related technologies, when the antenna form changes and the beam state of the base station beam changes, the terminal equipment starts the beam adjustment or beam failure recovery process. On the one hand, the terminal equipment starts the beam adjustment or beam failure recovery process. It requires a certain amount of time. time, will increase the transmission delay of the system. On the other hand, when the beam state of the base station beam changes, there are a large number of terminal devices in the cell served by the base station, and a large number of signaling bursts will occur at the same time, causing control channel congestion, thus affecting the system. performance.

In the embodiment of the present disclosure, the base station is supported to actively send the first indication information to the terminal device, indicating that the beam status of the base station beam has changed, so that the terminal device does not need to perform downlink measurements, determine the beam failure, and then report to discover the beam failure process.

It can be understood that the base station can predict changes in the antenna shape and the beam state of the base station beam. Based on this, in the embodiment of the present disclosure, the base station is supported to actively send first indication information to the terminal device to indicate the change of the base station beam. The beam status changes to inform the terminal equipment. There is no need for the terminal equipment to perform downlink measurements, determine the beam failure, and then report the process of discovering the beam failure, which can reduce transmission delay and signaling overhead.

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

It can be understood that when the antenna form of a base station changes, the antenna equipment of the corresponding base station may change the beams of all terminal equipment in the cell served by the base station and the entire cell.

In the embodiment of the present disclosure, the change in the beam state of the base station beam is caused by the change in the antenna form of the base station. Furthermore, the first instruction information sent by the base station to the terminal device can also indicate the change in the antenna form of the base station to instruct the base station. The beam state of the beam changes.

It is understandable that changes in the antenna shape lead to changes in the state of the original simulated shaped beam, which can also be seen as changes in the transmission of SSB or CSI-RS corresponding to the beam, which in turn leads to changes in the transmission based on the original SSB or CSI-RS. The measurement will become invalid in the future. At the same time, the PDCCH or PDSCH transmission associated with SSB or CSI-RS indicated by TCI will also change, causing the original beam pairing to no longer be better or optimal. Therefore, the first indication information may also indicate that the current beam has changed, or that the current beam is about to become invalid (after the beam changes, the original measurement results and/or the beam pairing relationship actually become invalid). When the cell served by the base station is configured with beam scanning, the first indication information can indicate the overall status of the beam change or failure, without distinguishing the situation of a single beam, and can also separately indicate which beams have changed or failed after the antenna shape is changed. Invalid.

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 following:

The first indication information is used to indicate that the current beam of the base station has changed;

The first indication information is used to indicate that the current beam of the base station is invalid;

The first indication information is used to indicate that all current beams of the base station have changed;

The first indication information is used to indicate that all current beams of the base station are invalid;

The first indication information is used to indicate that the current partial beam of the base station has changed;

The first indication information is used to indicate that the current partial beam of the base station is invalid.

In the embodiment of the present disclosure, the first indication information is used to indicate that the current beam of the base station is changed or invalid, or that all the current beams are changed or invalid, or that some of the current beams are changed or invalid. The current beam refers to the beam used by the base station to communicate with the UE. Among them, all beams refer to the beams used by the base station to communicate with all UEs. The partial beams may include the current beams used by the base station to communicate with the UE, or may not include the current beams used by the base station to communicate with the UE. Of course, if it indicates that all current beams are invalid, all current beams must include the current beams used by the base station to communicate with the UE.

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

It can be understood 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 indicates that all current beams remain unchanged, or indicates that some of the current beams remain unchanged.

In some embodiments, the first indication information at least includes: a bitmap used to indicate the beam status of the base station's beam; wherein one bit in the bitmap corresponds to one beam of the base station and is used to indicate the corresponding beam. The beam status changes or remains unchanged.

In the embodiment of the present disclosure, the first indication information at least includes: a bitmap used to indicate the beam status of the base station beam, wherein the bitmap includes at least one bit, wherein one bit in the bitmap corresponds to One or several beams are used to indicate that the beam status of the corresponding beam changes or remains unchanged. In the embodiment of the present disclosure, one bit in the bitmap corresponds to one or several beams of the base station, which means that there may be 1 bit in the bitmap corresponding to multiple beams of the base station, and/or there may be 1 bit in the bitmap. Corresponds to a beam of the base station. For example, there is 1 bit in the bitmap corresponding to the current beam of the base station, and 1 bit corresponding to the current partial beam of the base station (for example, beams other than the current beam); for another example, there is 1 bit in the bitmap corresponding to the current beam of the base station, And there is 1 bit corresponding to the first set of beams of the base station, and there is 1 bit corresponding to the second set of beams of the base station... Of course, these are only examples and not limitations of the technical solution of the present disclosure.

It can be understood that changes in the beam status of the base station beam may cause the original measurement results and/or pairing relationships of the terminal equipment to become invalid, and the beam status of the base station beam to become invalid.

Exemplarily, the bitmap includes at least one bit, wherein one bit uses 0 and 1 to indicate whether the beam state of the corresponding beam changes or remains unchanged. For example: when the bit is 1, it indicates that the beam status of the corresponding beam remains unchanged; when the bit is 0, it indicates that the beam status of the corresponding beam changes or becomes invalid. Or the opposite, that is: in the above example, when the bit is 1, it can also indicate that the beam status of the corresponding beam has changed or failed, and when the bit is 0, it indicates that the beam status of the corresponding beam remains unchanged. .

It can be understood that there are multiple beams in the cell served by the base station, and one bit in the bitmap corresponds to one beam of the base station, so that the first indication information including the bitmap can be used to indicate the multiple beams of the base station. Whether the beam status changes or remains unchanged.

In some embodiments, one bit in the bitmap corresponds to one beam of the base station, including: when the corresponding beam is a beam measured based on the synchronization signal block SSB, one bit in the bitmap corresponds to one SSB number.

In some embodiments, one bit in the bitmap corresponds to a beam of the base station, including: when the corresponding beam is a beam measured based on the channel state information reference signal CSI-RS, one bit in the bitmap The bit corresponds to a CSI-RS number.

For example, the bitmap includes at least one bit. This bit can be used to indicate at least one of the following states:

When the corresponding beam is a beam measured based on the synchronization signal block SSB, one bit in the bitmap corresponds to an SSB number; and

When the corresponding beam is a beam measured based on the channel state information reference signal CSI-RS, one bit in the bitmap corresponds to a CSI-RS number to indicate the SSB number or the beam corresponding to the CSI-RS number. The beam status changes or remains unchanged.

Among them, one bit uses 0 and 1 to indicate that the beam status of the corresponding beam changes or remains unchanged. When the bit is 1, it indicates that the beam status of the corresponding beam remains unchanged. When the bit is 0, Indicates that the beam status of the corresponding beam has changed or failed, or vice versa.

In some embodiments, the first indication information is a list; wherein the list is used to indicate information about beams whose beam status changes among the base station beams. For example, the information of the beam may be at least one of the following: 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 this embodiment of the present disclosure, the first indication information is a list, and the list indicates the beams whose beam status has changed among the base station beams. For example, the list indicates the beam number corresponding to the beam whose beam status changes in the base station beam, or the CSI-RS resource number corresponding to the beam whose beam status changes, or the SSB number corresponding to the beam whose beam status changes.

It can be understood that there are multiple beams in the cell served by the base station. The information of the beams whose beam status has changed among the base station beams is summarized through a list. The list may include the beam number corresponding to the beam whose beam status has changed, or in the corresponding When the beam is measured based on the synchronization signal block SSB, the list may include the SSB number corresponding to the beam whose beam state changes, or when the corresponding beam is the beam measured based on the channel state information reference signal CSI-RS. In this case, the list may include the CSI-RS resource number corresponding to the beam whose beam state changes.

S22: In response to determining that the beam state of the base station beam changes according to the first indication information, re-measure the pilot signal corresponding to the base station beam to obtain the measurement result, and report the measurement result to the base station.

Wherein, at the first moment after receiving the first indication information, the terminal device re-measures the pilot signal corresponding to the base station beam to obtain the measurement result, and reports the measurement result to the base station. In a possible implementation, the first time may be the time when the first indication information is received or any time after the first indication information is received. That is, in response to receiving the first indication information, the terminal device re-measures the pilot signal corresponding to the base station beam to obtain the measurement result, and reports the measurement result to the base station.

Among them, the beam management method provided by the embodiment of the present disclosure can re-measure the pilot signal corresponding to the base station beam at the first moment. The first moment may be determined by the UE, that is, the method includes: the terminal device determines the first moment.

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

In some embodiments, the first moment may also be determined based on the base station or communication protocol. That is, determining the first time includes: determining the first time according to a predefined first duration; or receiving second indication information sent by the base station; wherein the second indication information carries information of the first duration; according to the second indication Information, determine the first moment.

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 can also be expressed by the timing duration of the timer.

In the embodiment of the present disclosure, the predefined first duration may be the first duration determined according to the 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: determining the first time as the time when the first indication information is received, plus the first duration. The first duration can be equal to zero. Then, determining the first time includes: determining the first time as the time when the first indication information is received.

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

In the embodiment of the present disclosure, the terminal device can determine the first time based on the predefined first time period or the first time period information carried in the second indication information sent by the base station. In an exemplary embodiment, if the first duration is predefined or indicated by the second indication information of the base station to be 3 time slots, then the first time is determined to be the time when the first indication information is received, plus 3 time slots.

In the embodiment of the present disclosure, when the terminal device receives the first indication information sent by the base station and determines that the beam state of the base station beam has changed, it re-measures the base station beam no earlier than the first moment after receiving the first indication information. Corresponding pilot signal to obtain measurement results and report the measurement results 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. In the embodiment of the present disclosure, after the terminal equipment receives the first indication information, it shall not be earlier than receiving the first indication information. At the first moment after the indication information, the pilot signal corresponding to the base station beam is re-measured. At this time, it can be ensured that the terminal device re-measures the changed beam of the base station.

Therefore, in the embodiment of the present disclosure, the base station sends the first indication information to the terminal device, and the first indication information indicates that the beam state of the base station beam changes. It can be understood that the base station can change the base station beam while sending the first indication information. The beam state of the base station beam may also be changed after a period of time, wherein the base station changes the beam state of the base station beam no later than the first moment.

Among them, the pilot signal corresponding to the base station beam is re-measured: 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 base station beam has changed its beam state. In this case, the terminal device can only change the beam status indicated by the first indication information based on the first indication information. The changed part of the base station beam is re-measured.

In the embodiment of the present disclosure, the terminal device re-measures the pilot signal corresponding to the base station beam to obtain the measurement result, and reports the measurement result to the base station. The base station selects the beam according to the measurement results reported by the terminal equipment, and configures it according to the TCI status information in the original RRC message, and uses MAC CE or PDCCH DCI to notify the terminal equipment of the beam (in one method, it can be to notify TCI information) . If the change in antenna form causes the configuration parameters in the RRC message (such as at least one of the following parameters: SSB configuration or CSI-RS resource configuration, TCI configuration) to also need to be changed, the base station initiates the RRC reconfiguration process, for example, the RRCReconfiguration message can be used Send the new SSB configuration, CSI-RS resource configuration, or original TCI configuration to the terminal device. If the terminal device cannot find a beam that satisfies the reported configuration according to the original RRC message configuration, the terminal device selects an appropriate random access resource to initiate a random access to the base station according to the relationship between the random access resources and beams configured in the RRC message. into the process. Based on the relationship between random access resources and beams, or the beam selected by the terminal device, the base station uses this beam as the optimal beam for subsequent data or signaling transmission.

By implementing the embodiments of the present disclosure, the terminal device receives the first indication information sent by the base station; wherein the first indication information is used to indicate that the beam status of the base station beam changes, and in response to determining that the beam status of the base station beam changes according to the first indication information, the Change, at the first moment after receiving the first indication information, re-measure the pilot signal corresponding to the base station beam to obtain the measurement result, and report the measurement result to the base station. In the embodiment of the present disclosure, the base station is supported to actively send the first indication information to the terminal device, indicating that the beam status of the base station beam has changed, so as to inform the terminal device. There is no need for the terminal device to perform downlink measurements, determine the beam failure, and then report the process of discovering the beam failure. It can reduce transmission delay and signaling overhead. Wherein, the base station actively sending the first indication information to the terminal device means that the process is initiated by the base station and is not initiated based on the request of the UE.

Please refer to Figure 3, which is a flow chart of another beam management method provided by an embodiment of the present disclosure.

As shown in Figure 3, this method is applied to terminal equipment. This method may include but is not limited to the following steps:

S31: Receive the first indication information sent by the base station through the system information block SIB, or the main information block MIB, or the paging message; wherein the first indication information is used to indicate a change in the beam state of the base station's beam.

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

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

For the first indication information, reference may be made to the descriptions of relevant embodiments of the present disclosure, which will not be described again here.

S32: In response to determining that the beam state of the base station beam changes according to the first indication information, re-measure the pilot signal corresponding to the base station beam to obtain the measurement result, and report the measurement result to the base station.

It should be noted that, for the relevant description of S31 and S32 in the embodiment of the present disclosure, please refer to the relevant description of S21 and S22 in the above example, and will not be described again here.

By implementing the embodiments of the present disclosure, the terminal device receives the first indication information sent by the base station; wherein the first indication information is used to indicate that the beam status of the base station beam has changed, and based on the first indication information, it is determined that the beam status of the base station beam has changed. In the case of a change, re-measure the pilot signal corresponding to the base station beam at no earlier than the first moment after receiving the first indication information to obtain the measurement result, and report the measurement result to the base station. In this disclosed embodiment, the base station is supported to actively send the first indication information to the terminal device, indicating that the beam status of the base station beam has changed, so as to inform the terminal device. There is no need for the terminal device to perform downlink measurements, determine the beam failure, and then report the process of discovering the beam failure. It can reduce transmission delay and signaling overhead.

Please refer to Figure 4, which is a flow chart of yet another beam management method provided by an embodiment of the present disclosure.

As shown in Figure 4, this method is applied to terminal equipment. This method may include but is not limited to the following steps:

S41: Confirm that the base station has the ability to change the antenna shape.

In the embodiment of the present disclosure, the terminal device can determine whether the base station has the ability to change the antenna shape, thereby learning that the TRP of the cell served by the base station has the ability to change the antenna shape, and may dynamically change the beam state of the base station beam.

In a possible implementation, the terminal device may determine whether the base station has the ability to change the antenna form according to whether the first indication information sent by the base station is received. In response to receiving the first indication information and determining that the base station has the ability to change the antenna shape, the base station may dynamically change the beam state of the base station beam. In response to not receiving the first indication information sent by the base station, it is determined that the base station does not have the ability to change the antenna form, and it is determined that the beam state of the base station beam will not change.

In some embodiments, the terminal device may determine that the base station has the ability to change the antenna form according to receiving third indication information sent by the base station; wherein the third indication information is used to indicate that the base station has the ability to change the antenna form. In a possible implementation, the terminal device may assume that the base station does not have the ability to change the antenna form; and then, in response to receiving the third indication information sent by the base station, determine that the base station has the ability to change the antenna form. Or on the contrary; that is, the terminal device can default to the base station having the ability to change the antenna shape.

The third indication information may be an RRC broadcast message or a dedicated message. The base station may send third indication information through an RRC broadcast message or a dedicated message to indicate that the base station has the ability to change the antenna shape.

It should be noted that S41 can be implemented alone, or can be implemented in combination with any other step in the embodiment of the present disclosure. For example, S21 and S22 and/or S31 and S32 in the embodiment of the present disclosure can be implemented together. The disclosed embodiments do not limit this.

Please refer to Figure 5, which is a flow chart of yet another beam management method provided by an embodiment of the present disclosure.

As shown in Figure 5, this method is applied to the base station. The method may include but is not limited to the following steps:

S51: Send first indication information to the terminal device; wherein the first indication information is used to indicate that the beam state of the base station beam changes.

Based on the above discussion, it can be seen that in related technologies, when the antenna form changes and the beam state of the base station beam changes, the terminal equipment starts the beam adjustment or beam failure recovery process. On the one hand, the terminal equipment starts the beam adjustment or beam failure recovery process. It requires a certain amount of time. time, will increase the transmission delay of the system. On the other hand, when the beam state of the base station beam changes, there are a large number of terminal devices in the cell served by the base station, and a large number of signaling bursts will occur at the same time, causing control channel congestion, thus affecting the system. performance.

In this embodiment of the present disclosure, the first indication information is also used to instruct the terminal device to perform re-measurement based on the pilot signal corresponding to the base station beam to obtain the measurement result. That is, in response to determining that the beam state of the base station beam changes according to the first indication information, the terminal device re-measures the pilot signal corresponding to the base station beam to obtain the measurement result, and reports the measurement result to the base station. The first time may be the time when the first instruction information is received or any time after the first instruction information is received.

In the embodiment of the present disclosure, the base station is supported to actively send the first indication information to the terminal device, indicating that the beam status of the base station beam has changed, so that the terminal device does not need to perform downlink measurements, determine the beam failure, and then report to discover the beam failure process.

It can be understood that the base station can predict changes in the antenna shape and the beam state of the base station beam. Based on this, in the embodiment of the present disclosure, the base station is supported to actively send first indication information to the terminal device to indicate the change of the base station beam. The beam status changes to inform the terminal equipment. There is no need for the terminal equipment to perform downlink measurements, determine the beam failure, and then report the process of discovering the beam failure, which can reduce transmission delay and signaling overhead.

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

It can be understood that when the antenna form of a base station changes, the antenna equipment of the corresponding base station may change the beams of all terminal equipment in the cell served by the base station and the entire cell.

In the embodiment of the present disclosure, the change in the beam state of the base station beam is caused by the change in the antenna form of the base station. Furthermore, the first instruction information sent by the base station to the terminal device can also indicate the change in the antenna form of the base station to instruct the base station. The beam state of the beam changes.

It is understandable that changes in the antenna shape lead to changes in the state of the original simulated shaped beam, which can also be seen as changes in the transmission of SSB or CSI-RS corresponding to the beam, which in turn leads to changes in the transmission based on the original SSB or CSI-RS. The measurement will become invalid in the future. At the same time, the PDCCH or PDSCH transmission associated with SSB or CSI-RS indicated by TCI will also change, causing the original beam pairing to no longer be better or optimal. Therefore, the first indication information may also indicate that the current beam has changed, or that the current beam is about to become invalid (after the beam changes, the original measurement results and/or the beam pairing relationship actually become invalid). When the cell served by the base station is configured with beam scanning, the first indication information can indicate the overall status of the beam change or failure, without distinguishing the situation of a single beam, and can also separately indicate which beams have changed or failed after the antenna shape is changed. Invalid.

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 following:

The first indication information is used to indicate that the current beam of the base station has changed;

The first indication information is used to indicate that the current beam of the base station is invalid;

The first indication information is used to indicate that all current beams of the base station have changed;

The first indication information is used to indicate that all current beams of the base station are invalid;

The first indication information is used to indicate that the current partial beam of the base station has changed;

The first indication information is used to indicate that the current partial beam of the base station is invalid.

In the embodiment of the present disclosure, the first indication information is used to indicate that the current beam of the base station is changed or invalid, or that all the current beams are changed or invalid, or that some of the current beams are changed or invalid.

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

It can be understood 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 indicates that all current beams remain unchanged, or indicates that some of the current beams remain unchanged.

In some embodiments, the first indication information at least includes: a bitmap used to indicate the beam status of the base station's beam; wherein one bit in the bitmap corresponds to one beam of the base station, and is used to indicate the status of the corresponding beam. The beam state changes or remains unchanged.

In the embodiment of the present disclosure, the first indication information at least includes: a bitmap used to indicate the beam status of the base station beam, the bitmap includes at least one bit, wherein one bit in the bitmap corresponds to one bit of the base station. or several beams, used to indicate that the beam status of the corresponding beam changes or remains unchanged. In the embodiment of the present disclosure, one bit in the bitmap corresponds to one or several beams of the base station, which means that there may be 1 bit in the bitmap corresponding to multiple beams of the base station, and/or there may be 1 bit in the bitmap. Corresponds to a beam of the base station. For example, there is 1 bit in the bitmap corresponding to the current beam of the base station, and 1 bit corresponding to the current partial beam of the base station (for example, beams other than the current beam); for another example, there is 1 bit in the bitmap corresponding to the current beam of the base station, And there is 1 bit corresponding to the first set of beams of the base station, and there is 1 bit corresponding to the second set of beams of the base station... Of course, these are only examples and not limitations of the technical solution of the present disclosure.

It can be understood that changes in the beam status of the base station beam will cause the original measurement results and/or pairing relationships of the terminal equipment to become invalid, and the beam status of the base station beam to become invalid.

Exemplarily, the bitmap includes at least one bit, wherein one bit uses 0 and 1 to indicate whether the beam state of the corresponding beam has changed or remained unchanged, and when the bit is 1, it indicates that the corresponding beam has changed or remained unchanged. The beam status remains unchanged. When this bit is 0, it indicates that the beam status of the corresponding beam has changed or failed. Or the opposite, that is: in the above example, when the bit is 1, it can also indicate that the beam status of the corresponding beam has changed or failed, and when the bit is 0, it indicates that the beam status of the corresponding beam remains unchanged. .

It can be understood that there are multiple beams in the cell served by the base station, and one bit in the bitmap corresponds to one or more beams of the base station, so that the multiple beams of the base station can be indicated through the first indication information including the bitmap. Whether the beam status of each beam changes or remains unchanged.

In some embodiments, one bit in the bitmap corresponds to one beam of the base station, including: when the corresponding beam is a beam measured based on the synchronization signal block SSB, one bit in the bitmap corresponds to one SSB number. In some embodiments, one bit in the bitmap corresponds to a beam of the base station, including: when the corresponding beam is a beam measured based on the channel state information reference signal CSI-RS, one bit in the bitmap The bit corresponds to a CSI-RS number.

Exemplarily, the bitmap includes at least one bit. When the corresponding beam is a beam measured based on the synchronization signal block SSB, one bit in the bitmap corresponds to an SSB number. When the corresponding beam is In the case of beams measured based on the channel state information reference signal CSI-RS, one bit in the bitmap corresponds to a CSI-RS number to indicate changes in the beam state of the beam corresponding to the SSB number or CSI-RS number. Or remain unchanged. Among them, one bit uses 0 and 1 to indicate that the beam status of the corresponding beam changes or remains unchanged. When the bit is 1, it indicates that the beam status of the corresponding beam remains unchanged. When the bit is 0, Indicates that the beam status of the corresponding beam has changed or failed.

In this embodiment of the present disclosure, the first indication information is a list, and the list indicates the beams whose beam status has changed among the base station beams. For example, the list indicates the beam number corresponding to the beam whose beam status changes in the base station beam, or the CSI-RS resource number corresponding to the beam whose beam status changes, or the SSB number corresponding to the beam whose beam status changes.

It can be understood that there are multiple beams in the cell served by the base station. The information of the beams whose beam status has changed among the base station beams is summarized through a list. The list can count the beam numbers corresponding to the beams whose beam status has changed, or in the corresponding When the beam is measured based on the synchronization signal block SSB, the SSB number corresponding to the beam whose beam state changes can be counted in the list, or when the corresponding beam is the beam measured based on the channel state information reference signal CSI-RS. In this case, the CSI-RS resource numbers corresponding to the beams whose beam status changes can be counted in the list.

S52: Receive the measurement results reported by the terminal device; wherein the measurement results are obtained by the terminal device re-measuring the pilot signal corresponding to the base station beam in response to determining that the beam state of the base station beam has changed according to the first indication information.

In some embodiments, the beam management method provided by the embodiments of the present disclosure further includes: sending second indication information to the terminal device, where the second indication information carries information of the first duration.

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

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 can also be expressed by the timing duration of the timer.

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

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

Of course, the first moment and/or the first duration can be determined according to the communication protocol, or the terminal device can determine it by itself.

In the embodiment of the present disclosure, the terminal device can determine the first time based on the information of the first duration carried in the second indication information sent by the base station.

In an exemplary embodiment, if the first duration indicated by the second indication information of the base station is 3 time slots, then the first time is determined to be the time when the first indication information is received, plus 3 time slots. Of course, the first duration can also be expressed by the timing duration of the timer.

In the embodiment of the present disclosure, when the terminal device receives the first indication information sent by the base station and determines that the beam state of the base station beam has changed, it re-measures the base station beam no earlier than the first moment after receiving the first indication information. Corresponding pilot signal to obtain measurement results and report the measurement results to the base station.

In some embodiments, when the second time is reached after sending the first indication information to the terminal device, the beam state of the beam sent by the base station is changed; wherein the second time is not later than the first time.

In order to ensure that the terminal device 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. In the embodiment of the present disclosure, after the base station sends the first indication information to the terminal device, the second moment is reached. , changing the beam state of the beam sent by the base station; wherein the second time is no later than the first time, so that after the terminal device receives the first indication information, it is no earlier than the first time after receiving the first indication information, Re-measure the pilot signal corresponding to the base station beam. At this time, it can be ensured that the terminal device re-measures the changed beam of the base station.

Therefore, in the embodiment of the present disclosure, the base station sends the first indication information to the terminal device, and the first indication information indicates that the beam state of the base station beam changes. It can be understood that the base station can change the base station beam while sending the first indication information. The beam state of the base station beam may also be changed after a period of time, wherein the base station changes the beam state of the base station beam no later than the first moment.

Among them, the pilot signals corresponding to the base station beams are re-measured, including: 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 base station beam has changed its beam state. In this case, the terminal device can only change the beam status indicated by the first indication information based on the first indication information. The changed part of the base station beam is re-measured.

For the first indication information, reference may also be made to the expressions of relevant embodiments of the present disclosure, and the same expressions will not be described again here.

In the embodiment of the present disclosure, the terminal device re-measures the pilot signal corresponding to the base station beam to obtain the measurement result, and reports the measurement result to the base station. The base station selects a beam based on the measurement results reported by the terminal device, and configures the beam according to the TCI status information in the original RRC message, and uses MAC CE or PDCCH DCI to notify the terminal device of the beam (actually notifying TCI information). If the change in antenna form causes the SSB configuration or CSI-RS resource configuration in the RRC message, or the original TCI configuration to also change, the base station initiates the RRC reconfiguration process. For example, the RRCReconfiguration message can be used to transfer the new SSB configuration or CSI-RS configuration. Resource configuration or original TCI configuration is sent to the terminal device. If the terminal device cannot find a beam that satisfies the reported configuration according to the original RRC message configuration, the terminal device selects an appropriate random access resource to initiate a random access to the base station according to the relationship between the random access resources and beams configured in the RRC message. into the process. The base station uses the beam as the beam for subsequent data or signaling transmission based on the relationship between the random access resource and the beam, or the beam selected by the terminal device.

By implementing the embodiments of the present disclosure, the terminal device receives the first indication information sent by the base station; wherein the first indication information is used to indicate that the beam status of the base station beam changes, and based on the first indication information, it is determined that the beam status of the base station beam changes. In the case of a change, re-measure the pilot signal corresponding to the base station beam at no earlier than the first moment after receiving the first indication information to obtain the measurement result, and report the measurement result to the base station. In the embodiment of the present disclosure, the base station is supported to actively send the first indication information to the terminal device, indicating that the beam status of the base station beam has changed, so as to inform the terminal device. There is no need for the terminal device to perform downlink measurements, determine the beam failure, and then report the process of discovering the beam failure. It can reduce transmission delay and signaling overhead.

Please refer to FIG. 6 , which is a flow chart of yet another beam management method provided by an embodiment of the present disclosure.

As shown in Figure 6, this method is applied to the base station. The method may include but is not limited to the following steps:

S61: Send the first indication information to the terminal device through the system information block SIB, or the main information block MIB, or the paging message; wherein the first indication information is used to indicate that the beam state of the base station beam changes.

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

For the first indication information, reference may also be made to the expressions of relevant embodiments of the present disclosure, and the same expressions will not be described again here.

S62: Receive the measurement result reported by the terminal device; wherein the measurement result is obtained by the terminal device re-measurement of the pilot signal corresponding to the base station beam in response to determining that the beam state of the base station beam has changed according to the first indication information.

In some embodiments, the beam management method provided by the embodiments of the present disclosure further includes: sending second indication information to the terminal device, where the second indication information carries information of the first duration.

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

In some embodiments, when the second time is reached after sending the first indication information to the terminal device, the beam state of the beam sent by the base station is changed; wherein the second time is not later than the first time.

It should be noted that, for the relevant description of S61 and S62 in the embodiment of the present disclosure, please refer to the relevant description of S51 and S52 in the above example, and will not be described again here.

At the first moment, reference may also be made to the expressions of the relevant embodiments of the present disclosure, and the same expressions will not be repeated here. Similarly, for the first duration, reference may also be made to the expressions in the relevant embodiments of the present disclosure, and the same expressions will not be described again here.

By implementing the embodiments of the present disclosure, the terminal device receives the first indication information sent by the base station; wherein the first indication information is used to indicate that the beam status of the base station beam changes, and based on the first indication information, it is determined that the beam status of the base station beam changes. In the case of a change, re-measure the pilot signal corresponding to the base station beam at no earlier than the first moment after receiving the first indication information to obtain the measurement result, and report the measurement result to the base station. In the embodiment of the present disclosure, the base station is supported to actively send the first indication information to the terminal device, indicating that the beam status of the base station beam has changed, so as to inform the terminal device. There is no need for the terminal device to perform downlink measurements, determine the beam failure, and then report the process of discovering the beam failure. It can reduce transmission delay and signaling overhead.

Please refer to FIG. 7 , which is a flow chart of yet another beam management method provided by an embodiment of the present disclosure.

As shown in Figure 7, this method is applied to the base station. The method may include but is not limited to the following steps:

S71: Send third indication information to the terminal device; wherein the third indication information is used to indicate that the base station has the ability to change the antenna form; or the third indication information is used to indicate that the base station does not have the ability to change the antenna form.

The third indication information may be an RRC broadcast message or a dedicated message. The base station may send third indication information through an RRC broadcast message or a dedicated message to indicate that the base station has the ability to change the antenna shape.

In the embodiment of the present disclosure, the terminal device can determine whether the base station has the ability to change the antenna shape, thereby learning that the TRP of the cell served by the base station has the ability to change the antenna shape, and may dynamically change the beam state of the base station beam. In a possible implementation, the terminal device may assume that the base station does not have the ability to change the antenna form; and then, in response to receiving the third indication information sent by the base station, determine that the base station has the ability to change the antenna form. Or on the contrary; that is, the terminal device can default to the base station having the ability to change the antenna shape.

For the third indication information, reference may also be made to the expressions of relevant embodiments of the present disclosure, and the same expressions will not be described again here.

Among them, the terminal device can determine whether the base station has the ability to change the antenna form according to whether it receives the first indication information sent by the base station. When the first indication information is received, it is determined that the base station has the ability to change the antenna form. The base station The beam state of the base station beam may be dynamically changed; but without receiving the first indication information sent by the base station, it is determined that the base station does not have the ability to change the antenna shape, and it is determined that the beam state of the base station beam will not change.

It should be noted that S71 can be implemented alone or in combination with any other step in the embodiment of the present disclosure. For example, S51 and S52 and/or S61 and S62 in the embodiment of the present disclosure can be implemented together. The disclosed embodiments do not limit this.

In the above embodiments provided by the present disclosure, the methods provided by the embodiments of the present disclosure are introduced from the perspectives of base stations and terminal equipment respectively. In order to implement the functions in the methods provided by the above embodiments of the present disclosure, network devices and terminal devices may include hardware structures and software modules to implement the above functions in the form of hardware structures, software modules, or hardware structures plus software modules. A certain function among the above functions can be executed by a hardware structure, a software module, or a hardware structure plus a software module.

Referring to FIG. 8 , in the above embodiments provided by the present disclosure, the methods provided by the embodiments of the present disclosure are introduced from the perspectives of base stations and terminal equipment respectively. In order to implement the functions in the methods provided by the above embodiments of the present disclosure, the base station and the terminal equipment may include hardware structures and software modules to implement the above functions in the form of hardware structures, software modules, or hardware structures plus software modules. A certain function among the above functions can be executed by a hardware structure, a software module, or a hardware structure plus a software module.

Please refer to FIG. 13 , which is a schematic structural diagram of a communication device 1 provided by an embodiment of the present disclosure. The communication device 1 shown in FIG. 13 may include a sending module 11 and a receiving module 12. The sending module 11 is used to implement the sending function, and the receiving module 12 is used to implement the receiving function.

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

The communication device 1 is a terminal device and includes: a sending module 11 and a receiving module 12 .

The receiving module 12 is configured to receive first indication information sent by the base station; wherein the first indication information is used to indicate that the beam state of the base station beam changes.

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

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

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 following:

The first indication information is used to indicate that the current beam of the base station has changed;

The first indication information is used to indicate that the current beam of the base station is invalid;

The first indication information is used to indicate that all current beams of the base station have changed;

The first indication information is used to indicate that all current beams of the base station are invalid;

The first indication information is used to indicate that the current partial beam of the base station has changed;

The first indication information is used to indicate that the current partial beam of the base station is invalid.

In the embodiment of the present disclosure, the first indication information is used to indicate that the current beam of the base station is changed or invalid, or that all the current beams are changed or invalid, or that some of the current beams are changed or invalid. The current beam refers to the beam used by the base station to communicate with the UE. Among them, all beams refer to the beams used by the base station to communicate with all UEs. The partial beams may include the current beams used by the base station to communicate with the UE, or may not include the current beams used by the base station to communicate with the UE. Of course, if it indicates that all current beams are invalid, all current beams must include the current beams used by the base station to communicate with the UE.

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

It can be understood 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 indicates that all current beams remain unchanged, or indicates that some of the current beams remain unchanged.

In some embodiments, the first indication information at least includes: a bitmap used to indicate the beam status of the base station's beam; wherein one bit in the bitmap corresponds to one beam of the base station and is used to indicate the corresponding beam. The beam status changes or remains unchanged.

In the embodiment of the present disclosure, the first indication information at least includes: a bitmap used to indicate the beam status of the base station beam, wherein the bitmap includes at least one bit, wherein one bit in the bitmap corresponds to One or several beams are used to indicate that the beam status of the corresponding beam changes or remains unchanged. In the embodiment of the present disclosure, one bit in the bitmap corresponds to one or several beams of the base station, which means that there may be 1 bit in the bitmap corresponding to multiple beams of the base station, and/or there may be 1 bit in the bitmap. Corresponds to a beam of the base station. For example, there is 1 bit in the bitmap corresponding to the current beam of the base station, and 1 bit corresponding to the current partial beam of the base station (for example, beams other than the current beam); for another example, there is 1 bit in the bitmap corresponding to the current beam of the base station, And there is 1 bit corresponding to the first set of beams of the base station, and there is 1 bit corresponding to the second set of beams of the base station... Of course, these are only examples and not limitations of the technical solution of the present disclosure.

For the first indication information, reference may also be made to the expressions of relevant embodiments of the present disclosure, and the same expressions will not be described again here.

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

In some embodiments, the processing module 13 is used to determine that the base station has the ability to change the antenna shape.

In some embodiments, the receiving module 12 is also configured to receive third indication information sent by the base station; wherein the third indication information is used to indicate that the base station has the ability to change the antenna shape.

The communication device 1 is a base station: the device includes: a sending module 11 and a receiving module 12 .

The sending module 11 is configured to send first indication information to the terminal device; wherein the first indication information is used to indicate that the beam state of the base station beam changes.

The receiving module 12 is configured to receive the measurement result reported by the terminal device; wherein the measurement result is that the terminal device re-measures the beam state of the base station beam in response to determining that the beam state of the base station beam has changed according to the first indication information. The pilot signal corresponding to the base station beam is obtained.

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

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 following:

The first indication information is used to indicate that the current beam of the base station has changed;

The first indication information is used to indicate that the current beam of the base station is invalid;

The first indication information is used to indicate that all current beams of the base station have changed;

The first indication information is used to indicate that all current beams of the base station are invalid;

The first indication information is used to indicate that the current partial beam of the base station has changed;

The first indication information is used to indicate that the current partial beam of the base station is invalid.

In some embodiments, the first indication information includes: a bitmap; wherein one bit in the bitmap corresponds to a beam of the base station and is used to indicate that the beam status of the corresponding beam changes or remains unchanged.

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

In this embodiment of the present disclosure, the first indication information is a list, and the list indicates the beams whose beam status has changed among the base station beams. For example, the list indicates the beam number corresponding to the beam whose beam status changes in the base station beam, or the CSI-RS resource number corresponding to the beam whose beam status changes, or the SSB number corresponding to the beam whose beam status changes.

In some embodiments, the sending module 11 is also configured to send second indication information to the terminal device, where the second indication information carries information of a first duration; wherein the first duration is used to instruct the terminal device to determine whether to re-measure the The first moment of the pilot signal corresponding to the base station beam.

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

Please continue to refer to FIG. 9 , the communication device 1 also includes: a processing module 13 .

In some embodiments, the processing module 13 is configured to change the beam state of the 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 not later than the first time.

In some embodiments, the sending module 11 is also configured to send third indication information to the terminal device; wherein the third indication information is used to indicate that the base station has the ability to change the antenna shape; or, the third indication information is used to indicate Indicates that the base station does not have the ability to change the antenna shape.

Regarding the communication device 1 in the above embodiment, the specific manner in which each module performs operations has been described in detail in the embodiment of the method, and will not be described in detail here. The communication device 1 provided in the above embodiments of the present disclosure achieves the same or similar beneficial effects as the communication methods provided in some of the above embodiments, and will not be described again here.

Please refer to FIG. 10 , which is a schematic structural diagram of another communication device 1000 provided by an embodiment of the present disclosure. The communication device 1000 may be a base station, a terminal device, a chip, a chip system, or a processor that supports a base station to implement the above method, or a chip, a chip system, or a processor that supports a terminal device to implement the above method. wait. The communication device 1000 can be used to implement the method described in the above method embodiment. For details, please refer to the description in the above method embodiment.

The communication device 1000 may be a base station, a terminal device, a chip, a chip system, or a processor that supports a base station to implement the above method, or a chip, a chip system, or a processor that supports a terminal device to implement the above method. wait. The device can be used to implement the method described in the above method embodiment. For details, please refer to the description in the above method embodiment.

Communication 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, it can be a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data. The central processor can be used to control communication devices (such as base stations, baseband chips, terminal equipment, terminal equipment chips, DU or CU, etc.) and execute computer programs. , processing data for computer programs.

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

Optionally, the communication device 1000 may also include a transceiver 1005 and an antenna 1006. The transceiver 1005 may be called a transceiver unit, a transceiver, a transceiver circuit, etc., and is used to implement transceiver functions. The transceiver 1005 may include a receiver and a transmitter. The receiver may be called a receiver or a receiving circuit, etc., used to implement the receiving function; the transmitter may be called a transmitter, a transmitting circuit, etc., used to implement the transmitting function.

Optionally, the communication device 1000 may also include one or more interface circuits 1007. 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 above method embodiment.

The communication device 1000 is a terminal device: the transceiver 1005 is used to execute S21 and S22 in Figure 2; the S31 and S32 in Figure 3; and the processor 1001 is used to execute S41 in Figure 4.

The communication device 1000 is a base station: the transceiver 1005 is used to execute S51 and S52 in Figure 5; the S61 and S62 in Figure 6; and the processor 1001 is used to execute S71 in Figure 7.

In one implementation, the processor 1001 may include a transceiver for implementing receiving and transmitting functions. For example, the transceiver may be a transceiver circuit, an interface, or an interface circuit. The transceiver circuits, interfaces or interface circuits used to implement the receiving and transmitting functions can be separate or integrated together. The above-mentioned transceiver circuit, interface or interface circuit can be used for reading and writing codes/data, or the above-mentioned transceiver circuit, interface or interface circuit can be used for signal transmission or transfer.

In one implementation, the processor 1001 may store a computer program 1003, and the computer program 1003 runs on the processor 1001, causing the communication device 1000 to perform 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 communication device 1000 may include a circuit, and the circuit may implement the functions of sending or receiving or communicating in the foregoing method embodiments. The processors and transceivers described in this disclosure may be implemented on integrated circuits (ICs), analog ICs, radio frequency integrated circuits (RFICs), mixed signal ICs, application specific integrated circuits (ASICs), printed circuit boards ( printed circuit board (PCB), electronic equipment, etc. The processor and transceiver can also be manufactured using various IC process technologies, such as 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 (BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.

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

(1) Independent integrated circuit IC, or chip, or chip system or subsystem;

(2) A collection of one or more ICs. Optionally, the IC collection may also include storage components for storing data and computer programs;

(3)ASIC, such as modem;

(4) Modules that can be embedded in other devices;

(5) Receivers, terminal equipment, intelligent terminal equipment, cellular phones, wireless equipment, handheld devices, mobile units, vehicle-mounted equipment, network equipment, cloud equipment, artificial intelligence equipment, etc.;

(6) Others, etc.

For the case where the communication device may be a chip or a chip system, please refer to FIG. 11 , which is a structural diagram of a chip provided in an embodiment of the present disclosure.

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

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

Interface 1103, used to receive code instructions and transmit them to the processor.

The processor 1101 is configured to run code instructions to perform the beam management method as described in some of the above embodiments.

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

Interface 1103, used to receive code instructions and transmit them to the processor.

The processor 1101 is configured to run code instructions to perform the beam management method as described in some of the above embodiments.

Optionally, the chip 1100 also includes a memory 1102, which is used to store necessary computer programs and data.

Those skilled in the art can also understand that the various illustrative logical blocks and steps listed in the embodiments of the present disclosure can be implemented by electronic hardware, computer software, or a combination of both. Whether such functionality is implemented in hardware or software depends on the specific application and overall system design requirements. Those skilled in the art can use various methods to implement the described functions for each specific application, but such implementation should not be understood as exceeding the scope of protection of the embodiments of the present disclosure.

Embodiments of the present disclosure also provide a communication system that includes a communication device as a terminal device and a communication device as a base station in the embodiment of FIG. 8 , or the system includes a communication device as a terminal device in the embodiment of FIG. 10 and communication devices as base stations.

The present disclosure also provides a readable storage medium on which instructions are stored, and when the instructions are executed by a computer, the functions of any of the above method embodiments are implemented.

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

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented using software, it may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer programs. When the computer program is loaded and executed on a computer, the processes or functions described in accordance with the embodiments of the present disclosure are generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer program may be stored in or transferred from one computer-readable storage medium to another, for example, the computer program may be transferred from a website, computer, server, or data center Transmission to another website, computer, server or data center through wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) means. 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 one or more available media integrated. The available media may be magnetic media (eg, floppy disk, hard disk, tape), optical media (eg, high-density digital video disc (DVD)), or semiconductor media (eg, solid state disk, SSD)) etc.

Those of ordinary skill in the art can understand that the first, second, and other numerical numbers involved in this disclosure are only for convenience of description and are not used to limit the scope of the embodiments of the disclosure, nor to indicate the order.

At least one in the present disclosure can also be described as one or more, and the plurality can be two, three, four or more, and the present disclosure is not limited. In the embodiment of the present disclosure, for a technical feature, the technical feature is distinguished by “first”, “second”, “third”, “A”, “B”, “C” and “D” etc. The technical features described in "first", "second", "third", "A", "B", "C" and "D" are in no particular order or order.

The corresponding relationships shown in each table in this disclosure can be configured or predefined. The values of the information in each table are only examples and can be configured as other values, which is not limited by this disclosure. When configuring the correspondence between information and each parameter, it is not necessarily required to configure all the correspondences shown in each table. For example, in the table in this disclosure, the corresponding relationships shown in some rows may not be configured. For another example, appropriate deformation adjustments can be made based on the above table, such as splitting, merging, etc. The names of the parameters shown in the titles of the above tables may also be other names understandable by the communication device, and the values or expressions of the parameters may also be other values or expressions understandable by the communication device. When implementing the above tables, other data structures can also be used, such as arrays, queues, containers, stacks, linear lists, pointers, linked lists, trees, graphs, structures, classes, heaps, hash tables or hash tables. wait.

Predefinition in this disclosure may be understood as definition, pre-definition, storage, pre-storage, pre-negotiation, pre-configuration, solidification, or pre-burning.

Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented with electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each specific application, but such implementations should not be considered to be beyond the scope of this disclosure.

Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working processes of the systems, devices and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be described again here.

The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure. should be covered by the protection scope of this disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims (31)

1. 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.
2. 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.
3. 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.
4. 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.
5. 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.
6. 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.
7. 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.
8. 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.
9. 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,

   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.
10. 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.
11. 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.
12. 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.
13. 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.
14. 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.
15. 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.
16. 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.
17. 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.
18. 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.
19. 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.
20. 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.
21. 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.
22. 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.
23. 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.
24. 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.
25. 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.
26. 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.
27. 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.
28. 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.
29. 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.
30. 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.
31. 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.