Beam management method and device, equipment, storage medium and program product

Abstract

Disclosed are a beam management method, apparatus and device, a storage medium and a program product, which relate to the technical field of communications and are used for enabling a base station to flexibly select an SSB beam for communication with a user equipment. The method is applied to a first session control network element. The method is applied to user equipment, and comprises the following steps: measuring a beam transmitted by each communication device in a plurality of communication devices, and generating a beam measurement report; the beam measurement report comprises beam measurement information corresponding to each communication device; and sending the beam measurement report to the base station. The method and the device are applied to a scene for managing the beam.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to a beam management method, apparatus, device, storage medium and program product. Background Art

[0002] Reconfigurable intelligent surface (RIS) can be deployed between base stations and signal coverage blind areas of base stations. Through effective reflection / transmission, the transmission signal of the base station reaches the user equipment in the signal coverage blind area, thereby establishing an effective connection between the base station and the user equipment and ensuring the signal coverage of the user equipment in the blind area. Currently, when the base station needs to communicate with the user equipment, the synchronization signal Block (SSB) beam with the largest signal strength reported by the user equipment (the SSB beam is the beam sent by the base station or RIS) can be beamformed to achieve communication with the user equipment.

[0003] However, when the base station communicates with the user equipment directly through the SSB beam with the largest signal strength reported by the user equipment, it may not be the best beam selection scheme, and the base station cannot flexibly select the SSB beam for communicating with the user equipment. Summary of the invention

[0004] The present application provides a beam management method, apparatus, device, storage medium and program product, which are used to solve the technical problem that a base station cannot flexibly select an SSB beam for communicating with a user device.

[0005] In order to achieve the above objectives, this application adopts the following technical solutions:

[0006] In a first aspect, a beam management method is provided, which is applied to a user device; the method includes: measuring the beam transmitted by each communication device among multiple communication devices, and generating a beam measurement report; the beam measurement report includes beam measurement information corresponding to each communication device; and sending the beam measurement report to a base station.

[0007] In one possible implementation, the beam transmitted by each communication device among multiple communication devices is measured to generate a beam measurement report, including: receiving beam grouping information from a base station; the beam grouping information includes air interface resources corresponding to the beam transmitted by each communication device; based on the beam grouping information, the beam transmitted by each communication device is measured to generate a beam measurement report.

[0008] In a possible implementation, the beam measurement information includes the signal strength of a target beam; the target beam is a beam with the largest signal strength among multiple beams transmitted by a communication device.

[0009] In a possible implementation, the multiple communication devices are communication devices other than the access device; the access device is a device to which the beam selected when the user equipment accesses the base station belongs.

[0010] In the second aspect, a beam management method is provided, which is applied to a base station; the method includes: receiving a beam measurement report from a user device; the beam measurement report includes beam measurement information corresponding to each communication device in a plurality of communication devices; and performing beam selection based on the beam measurement report.

[0011] In one possible implementation, before receiving a beam measurement report from a user device, the method also includes: sending beam grouping information to the user device; the beam grouping information includes air interface resources corresponding to the beam transmitted by each communication device; the beam grouping information is used by the user device to measure the beam transmitted by each communication device and generate a beam measurement report.

[0012] In a possible implementation, beam selection is performed based on the beam measurement report, including: beam selection is performed based on access beam information and the beam measurement report; the access beam information is used to characterize the beam selected when the user equipment accesses the base station.

[0013] In a possible implementation, the beam measurement information includes the signal strength of a target beam; the target beam is a beam with the largest signal strength among multiple beams transmitted by a communication device.

[0014] In a possible implementation, the multiple communication devices are communication devices other than the access device; the access device is a device to which the beam selected when the user equipment accesses the base station belongs.

[0015] In a third aspect, a beam management device is provided, which is applied to a user equipment; the beam management device includes: a processing unit and a transmission unit; the processing unit is used to measure the beam transmitted by each communication device in a plurality of communication devices and generate a beam measurement report; the beam measurement report includes beam measurement information corresponding to each communication device; the transmission unit is used to send the beam measurement report to a base station.

[0016] In one possible implementation, the transmission unit is also used to receive beam grouping information from a base station; the beam grouping information includes air interface resources corresponding to the beam transmitted by each communication device; the processing unit is also used to measure the beam transmitted by each communication device based on the beam grouping information and generate a beam measurement report.

[0017] In a possible implementation, the access beam information is used to characterize the beam selected when the user equipment accesses the base station.

[0018] In a possible implementation, the beam measurement information includes the signal strength of a target beam; the target beam is a beam with the largest signal strength among multiple beams transmitted by a communication device.

[0019] In a possible implementation, the multiple communication devices are communication devices other than the access device; the access device is a device to which the beam selected when the user equipment accesses the base station belongs.

[0020] In a fourth aspect, a beam management device is provided, which is applied to a base station; the beam management device includes: a transmission unit and a processing unit; the transmission unit is used to receive a beam measurement report from a user device; the beam measurement report includes beam measurement information corresponding to each communication device in multiple communication devices; and the processing unit is used to perform beam selection based on the beam measurement report.

[0021] In one possible implementation, the transmission unit is also used to send beam grouping information to the user equipment; the beam grouping information includes the air interface resources corresponding to the beam transmitted by each communication device; the beam grouping information is used by the user equipment to measure the beam transmitted by each communication device and generate a beam measurement report.

[0022] In a possible implementation, the processing unit is further used to perform beam selection based on access beam information and beam measurement report; the access beam information is used to characterize the beam selected when the user equipment accesses the base station.

[0023] In a possible implementation, the beam measurement information includes the signal strength of a target beam; the target beam is a beam with the largest signal strength among multiple beams transmitted by a communication device.

[0024] In a possible implementation, the multiple communication devices are communication devices other than the access device; the access device is a device to which the beam selected when the user equipment accesses the base station belongs.

[0025] In a fifth aspect, an electronic device comprises: a processor and a memory; wherein the memory is used to store one or more programs, and the one or more programs include computer execution instructions. When the electronic device is running, the processor executes the computer execution instructions stored in the memory to enable the electronic device to perform a beam management method as in the first aspect.

[0026] In a sixth aspect, a computer-readable storage medium storing one or more programs is provided, wherein the one or more programs include instructions, and when the instructions are executed by a computer, the computer executes a beam management method as in the first aspect.

[0027] In a seventh aspect, a computer program product is provided. When the computer instructions are executed on an electronic device, the electronic device executes a beam management method as in the first aspect.

[0028] The present application provides a beam management method, apparatus, device, storage medium and program product, which are applied to the scenario of beam management. The user equipment measures the beam transmitted by each communication device in multiple communication devices, and generates a beam measurement report including the beam measurement information corresponding to each communication device. Furthermore, the user equipment sends a beam measurement report to the base station so that the base station selects the beam according to the beam measurement report. That is, the more beam measurement information of different communication devices reported by the user equipment, the larger the selection range of the base station when selecting the beam. In this way, the technical problem that the base station can only communicate with the user equipment according to one SSB beam (also referred to as a beam) reported by the user equipment in the related technology is solved, resulting in the base station's beam selection being not flexible enough. Through the above method, the base station can perform beam selection according to the beam measurement information of multiple communication devices reported by the user equipment. Thus, the technical problem that the user equipment only reports one SSB beam, resulting in the base station being unable to flexibly select the SSB beam for communicating with the user equipment is solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A schematic diagram of an SSB frequency domain resource provided in an embodiment of the present application;

[0030] Figure 2 A schematic diagram of an SSB beam provided in an embodiment of the present application;

[0031] Figure 3 A schematic diagram of the structure of a beam management system provided in an embodiment of the present application;

[0032] Figure 4 A schematic diagram of a beam management method provided in an embodiment of the present application Figure 1 ;

[0033] Figure 5 A schematic diagram of the architecture of a network-side control RIS provided in an embodiment of the present application;

[0034] Figure 6 A schematic diagram of an integrated control RIS architecture provided for an embodiment of the present application;

[0035] Figure 7 A schematic diagram of SSB beam scanning provided in an embodiment of the present application;

[0036] Figure 8 A schematic diagram of a beam management method provided in an embodiment of the present application Figure 2 ;

[0037] Fig. 9 A schematic diagram of a beam management method provided in an embodiment of the present application Figure 3 ;

[0038] Fig.10 A schematic diagram of a beam management method provided in an embodiment of the present application Figure 4 ;

[0039] Fig.11 A schematic diagram of a beam management method provided in an embodiment of the present application Figure 5 ;

[0040] Fig.12 A schematic diagram of a beam management device provided in an embodiment of the present application Figure 1 ;

[0041] Fig.13 A schematic diagram of a beam management device provided in an embodiment of the present application Figure 2 ;

[0042] Fig.14 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0043] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application.

[0044] In the description of this application, unless otherwise specified, " / " means "or", for example, A / B can mean A or B. "And / or" in this article is merely a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, "at least one" and "plurality" refer to two or more. The words "first", "second", etc. do not limit the quantity and execution order, and the words "first", "second", etc. do not limit them to be different.

[0045] Traditional cellular network deployments may have coverage holes (also known as signal coverage blind spots). For example, in the shadow areas of tall buildings, street signal coverage in dense urban areas, or signal connections indoors and outdoors and inside and outside public transportation, communication links will be blocked, base station signals are not easy to reach, and user devices cannot get good services. RIS can be deployed between the base station and the signal coverage blind spot, and through effective reflection / transmission, the transmission signal reaches the user in the coverage hole area, thereby establishing an effective connection between the base station and the user, and ensuring signal coverage for users in the coverage hole area. On the one hand, RIS can actively enrich the channel scattering conditions and enhance the multiplexing gain of the wireless communication system. On the other hand, RIS can realize signal propagation direction control and co-phase superposition in three-dimensional space, increase the received signal strength, and improve the transmission performance between communication devices.

[0046] RIS mainly consists of two parts: metamaterial surface and control module. Metamaterial surface is composed of a large number of sub-wavelength array elements, usually made of artificial two-dimensional materials such as metal, dielectric or adjustable elements. Through the control module with programmable capabilities, the physical properties of the electromagnetic unit on the metamaterial surface, such as capacitive reactance, impedance or inductive reactance, can be dynamically adjusted, thereby changing the radiation characteristics of RIS and realizing unconventional physical phenomena, such as non-specular reflection, negative refraction, wave absorption, beamforming and polarization conversion, and finally realizing dynamic control of electromagnetic waves.

[0047] like Figure 1 As shown in the figure, the SSB (SS / Physical Broadcast Channel, PBCH) Block) beam in the new radio (NR) system carries the synchronization and system information necessary for terminal access, including three parts of information: primary synchronization signal (PSS), secondary synchronization signal (SSS) and PBCH (PBCH demodulation reference signal (DMRS) and data). The SSB beam in the NR system adopts a flexible time-frequency resource configuration, where the SSB beam includes 240 continuous subcarriers (numbered 0-239) in the frequency domain, that is, 20 RBs, and the SSB beam in the time domain includes 3 orthogonal frequency division multiplexing (OFDM) symbols (symbol number) (numbered 0-3).

[0048] like Figure 2 As shown, the base station can transmit multiple SSB beams within one SSB cycle in the time domain, and perform beam scanning through different time-frequency resources and beam directions.

[0049] At present, the fifth generation mobile communication technology (5G) has standardized the beam management process based on non-competitive access. When a user device accesses a base station, the user device selects an SSB beam that meets the threshold requirements and initiates non-competitive random access on the physical random access channel (PRACH) resources associated with this beam. Furthermore, the base station receives the PRACH resource information to obtain the unique code (identity document, ID) (also called identification) of the SSB beam selected by the user device, thereby performing corresponding beam shaping on the SSB beam selected by the user device to achieve communication with the user device.

[0050] However, after the introduction of RIS, when the base station communicates with the user equipment directly through the SSB beam with the largest signal strength reported by the user equipment, it may not be the best beam selection scheme. That is, when RIS is not introduced, the user equipment only reports one SSB beam, and the SSB beam is the SSB beam transmitted by the base station. After the introduction of RIS, it is necessary to consider both the SSB beam transmitted by the base station and the SSB beam forwarded by RIS to obtain the best beam selection scheme. However, the introduction of RIS will adjust the beam direction. Based on the existing process mechanism, the base station cannot determine whether the SSB beam is a beam sent by the base station or an SSB beam forwarded by RIS, that is, it cannot distinguish between the beam sent by the base station and the SSB beam forwarded by RIS, and thus cannot adopt a more flexible beam selection scheme in the subsequent communication process.

[0051] To solve the above problems, the present application provides a beam management method, which divides the SSB beams into multiple groups, and the multiple groups of SSB beams are sent by the base station and at least one RIS respectively. The user equipment can measure multiple groups of SSB beams at the same time and feedback the beam measurement information of each group of SSB beams, so that the base station can adopt a more flexible beam selection scheme in subsequent communication processes.

[0052] A beam management method provided in an embodiment of the present application can be applicable to a beam management system. Figure 3 FIG. 1 shows a schematic diagram of the structure of a beam management system. Figure 3 As shown, the beam management system 10 includes: a user equipment 11, multiple communication devices 12, and a base station 13. Among them, the multiple communication devices 12 may include a base station 13 and at least one signal forwarding device, that is, the base station 13 may be a communication device among the multiple communication devices 12. The user equipment 11, the multiple communication devices 12, and the base station 13 may be connected in a wired manner or in a wireless manner, which is not limited in the embodiment of the present invention.

[0053] The user equipment 11 is used to measure the beam transmitted by each of the multiple communication devices 12, generate a beam measurement report, and send the beam measurement report to the base station 13. The base station 13 is used to receive the beam measurement report from the user equipment 11 and perform beam selection based on the beam measurement report.

[0054] Optionally, the user equipment 11 may be a terminal device. The terminal device may be an entity on the user side for receiving or transmitting signals, such as a mobile phone. The terminal device may also be referred to as a terminal device (terminal), a user equipment (UE), a mobile station (MS), a mobile terminal device (MT), etc. The terminal device may be a car with communication function, a smart car, a mobile phone, a wearable device, a tablet computer (Pad), a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control (industrial control), a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in smart grid (smart grid), a wireless terminal device in transportation safety (transportation safety), a wireless terminal device in a smart city (smart city), a wireless terminal device in a smart home (smarthome), etc. The embodiments of the present disclosure do not limit the specific technology and specific device form adopted by the terminal device.

[0055] The communication device 12 can be a base station or a signal forwarding device (such as RIS). The base station 13 can be a base station or an evolved base station (eNB or eNodeB) in LTE, long term evolution advanced (LTEA), a base station device (gNB) in a 5G network, or a base station in a future communication system, etc. The base station may include various macro base stations, micro base stations, home base stations, wireless remotes, reconfigurable intelligent surfaces (RISs), routers, relay stations, transmission and reception points (TRP), receivers, access points, wireless fidelity (WIFI) devices and other network side devices. The embodiments of the present disclosure do not limit the specific technology and specific device form adopted by the base station.

[0056] The following describes a beam management method provided by an embodiment of the present application in conjunction with the accompanying drawings. Figure 4 As shown, a beam management method provided in an embodiment of the present application is applied to a user equipment, and the method includes S201-S202:

[0057] S201. Measure a beam transmitted by each of a plurality of communication devices, and generate a beam measurement report.

[0058] The beam measurement report includes beam measurement information corresponding to each communication device.

[0059] Optionally, the multiple communication devices may include a base station to which the user equipment is currently connected and at least one signal forwarding device within the coverage area of ​​the base station. The signal forwarding device may be a RIS.

[0060] The base station may pre-set the beam ID of each beam in all beams (also referred to as SSB beams), and group all SSB beams into multiple SSB beam subgroups, and transmit multiple SSB beams included in an SSB beam subgroup by a communication device for beam scanning. Different SSB beam subgroups use different air interface resources for transmission. The air interface resources may be time domain resources. The beam scanning range of the SSB beam subgroup is determined by the coverage range of the corresponding communication device.

[0061] For example, Figure 5As shown, the SSB beam scanning range of RIS can be controlled by the base station through a control link. The base station can control the forwarding front of RIS by controlling the control interface of a separate control module through the control link. The user equipment is connected to RIS through an access link. The base station is connected to RIS through a backhaul link.

[0062] like Figure 6 As shown in the figure, the SSB beam scanning range of RIS can also be controlled by the control module of RIS. The control link inside the control module can control the forwarding array of RIS through the control interface. In this case, the base station and RIS need to be coordinated uniformly through tools such as network management. User equipment is connected to RIS through access links. Base stations are connected to RIS through backhaul links.

[0063] Furthermore, the user equipment can monitor the SSB scanning beam, measure parameter values ​​such as the signal strength of the SSB beam transmitted by each of the multiple communication devices (i.e., parameter values ​​such as the signal strength of each SSB beam in the multiple SSB beams included in the SSB beam subgroup transmitted by each communication device), and generate a beam measurement report based on these parameter values.

[0064] For example, Figure 7 As shown, there are tall buildings between the user equipment and the base station, and the multiple communication devices include a base station and a RIS. The base station transmits 5 SSB beams included in SSB beam subgroup 1 (SSB beam 1 (i.e., beam ID is 1), SSB beam 2, SSB beam 3, SSB beam 4 and SSB beam 5), and the RIS transmits 3 SSB beams included in SSB beam subgroup 2 (SSB beam 6, SSB beam 7 and SSB beam 8).

[0065] It should be noted that the number of SSB beams in this application is only used as an example. In actual scenarios, the number of SSB beams is much larger than the number in the example of this application.

[0066] In a possible implementation, the beam measurement information includes the signal strength of a target beam; the target beam is a beam with the largest signal strength among multiple beams transmitted by a communication device.

[0067] Optionally, the beam measurement information may include a beam ID of the target beam and a signal strength of the target beam. The signal strength may be a reference signal receiving power (RSRP). The user equipment may select a beam with the largest signal strength from multiple SSB beams transmitted by each communication device as the target beam.

[0068] Exemplarily, SSB beam 1 is the SSB beam with the largest RSRP in SSB beam subgroup 1, and the RSRP of SSB beam 1 is -85dBm. SSB beam 7 is the SSB beam with the largest RSRP in SSB beam subgroup 2, and the RSRP of SSB beam 7 is -50dBm. Then the beam measurement information corresponding to the base station includes SSB beam 1 and the RSRP of SSB beam 1 (i.e., RSRP1, -85dBm), and the beam measurement information corresponding to the RIS includes the RSRP of SSB beam 7 (i.e., RSRP2, -50dBm).

[0069] The present application can measure the signal strength of the beam of each SSB beam subgroup through the user equipment, and send the ID and signal strength value of the SSB beam with the largest signal strength in each SSB beam subgroup to the base station, so as to facilitate the base station to select the best beam to communicate with the user equipment. That is, the greater the signal strength of the SSB beam, the better the communication quality of the base station communicating with the user equipment when selecting the SSB beam, thereby improving the transmission performance.

[0070] S202. Send a beam measurement report to the base station.

[0071] Optionally, the user equipment may send a beam measurement report to the base station. Further, the base station may perform beam selection according to the beam measurement report to select a beam for communicating with the user equipment.

[0072] Exemplarily, the base station can select a beam for communicating with the user equipment from SSB beam 1 and SSB beam 7 based on the RSRP of SSB beam 1 (i.e., -85dBm) and the RSRP of SSB beam 7 (i.e., -50dBm). For example, SSB beam 1 and / or SSB beam 7 can be selected.

[0073] In a possible implementation, the multiple communication devices are communication devices other than the access device; the access device is a device to which the beam selected when the user equipment accesses the base station belongs.

[0074] Optionally, before the above step S201, the user equipment needs to access the base station first. The steps for the user equipment to access the base station are as follows: the user equipment can monitor the SSB scanning beam, measure the signal strength and other parameter values ​​of the SSB beam transmitted by each communication device in multiple communication devices including the access device, and select the SSB beam with the largest signal strength from the SSB beams transmitted by multiple communication devices. Furthermore, the user equipment can initiate a random access request (also called non-competitive random access) on the PRACH resource corresponding to the SSB beam.

[0075] Further, the base station may receive a random access request initiated by the user equipment, and determine the beam ID of the SSB beam selected by the user equipment according to the PRACH resource corresponding to the random access request. The device that transmits the SSB beam selected by the user equipment is the access device. One PRACH resource corresponds to one SSB beam.

[0076] Exemplarily, the multiple communication devices include a base station and two RISs (RIS1 and RIS2, respectively). The user equipment selects the SSB beam with the largest signal strength as SSB beam 2 from the SSB beams transmitted by the base station and the two RISs, that is, the beam ID of the SSB beam selected by the user equipment is SSB beam 2. Then the base station can determine that SSB beam 2 is a beam in SSB beam subgroup 1, and further determine that the device transmitting SSB beam 2 is the base station, that is, the device to which SSB beam 2 belongs is the base station, from which it can be known that the base station is the access device. At this time, the user equipment only needs to measure the beams transmitted by RIS1 and RIS2 to generate a beam measurement report.

[0077] This application allows the user equipment to measure the beams emitted by communication devices other than the access device after the user equipment accesses the base station. This is because when the user equipment accesses the base station, the base station can know the beam with the highest signal strength among the beams emitted by the access device. Normally, the base station will select a base station to communicate with the user equipment in a short period of time. If the position of the user equipment has not changed during this period of time, the beam with the highest signal strength among the beams emitted by the access device will also not change. Therefore, it is only necessary to measure the beams emitted by communication devices other than the access device, which can save network resources and improve communication efficiency.

[0078] In one design, Figure 8 As shown, a beam management method provided in an embodiment of the present application, the method in the above step S201 specifically includes S301-S302:

[0079] S301. Receive beam grouping information from a base station.

[0080] The beam grouping information includes the air interface resources corresponding to the beam transmitted by each communication device.

[0081] Optionally, the base station may pre-configure the air interface resources used by each SSB beam subgroup. Different SSB beam subgroups use different air interface resources. After the user equipment accesses the base station, the user equipment may receive beam grouping information from the base station. That is, the air interface resources used by each SSB beam subgroup. The air interface resources may be time domain resources.

[0082] S302. Based on the beam grouping information, measure the beam transmitted by each communication device and generate a beam measurement report.

[0083] Optionally, the user equipment measures the beams included in the corresponding SSB beam subgroup according to the air interface resources adopted by each SSB beam subgroup.

[0084] In the present application, the user equipment can measure the beams included in different SSB beam subgroups according to the air interface resources of different SSB beam subgroups sent by the base station, so as to facilitate the base station to select beams according to the beam measurement information corresponding to different communication devices.

[0085] like Fig. 9 As shown, a beam management method provided in an embodiment of the present application is applied to a base station, and the method includes S401-S402:

[0086] S401. Receive a beam measurement report from a user equipment.

[0087] The beam measurement report includes beam measurement information corresponding to each communication device among multiple communication devices.

[0088] Optionally, the multiple communication devices may include a base station to which the user equipment is currently connected and at least one signal forwarding device within the coverage area of ​​the base station. The signal forwarding device may be a RIS.

[0089] The base station may pre-set the beam ID of each SSB beam in all SSB beams, and group all SSB beams into multiple SSB beam subgroups, and transmit multiple SSB beams included in one SSB beam subgroup by one communication device for beam scanning. Different SSB beam subgroups use different air interface resources for transmission. The air interface resources may be time domain resources. The beam scanning range of the SSB beam subgroup is determined by the coverage range of the corresponding communication device.

[0090] Further, the user equipment may monitor the SSB scanning beam, measure parameter values ​​such as the signal strength of the SSB beam transmitted by each of the multiple communication devices (i.e., parameter values ​​such as the signal strength of each SSB beam in the multiple SSB beams included in the SSB beam subgroup transmitted by each communication device), and generate a beam measurement report based on these parameter values. Further, the user equipment may send a beam measurement report to the base station.

[0091] For example, Figure 7As shown, there are tall buildings between the user equipment and the base station, and the multiple communication devices include a base station and a RIS. The base station transmits 5 SSB beams included in SSB beam subgroup 1 (SSB beam 1 (i.e., beam ID is 1), SSB beam 2, SSB beam 3, SSB beam 4 and SSB beam 5), and the RIS transmits 3 SSB beams included in SSB beam subgroup 2 (SSB beam 6, SSB beam 7 and SSB beam 8).

[0092] It should be noted that the number of SSB beams in this application is only used as an example. In actual scenarios, the number of SSB beams is much larger than the number in the example of this application.

[0093] In a possible implementation, the beam measurement information includes the signal strength of a target beam; the target beam is a beam with the largest signal strength among multiple beams transmitted by a communication device.

[0094] Optionally, the beam measurement information may include a beam ID of the target beam and a signal strength of the target beam. The signal strength may be RSRP. The user equipment may select a beam with the largest signal strength from multiple SSB beams transmitted by each communication device as the target beam.

[0095] Exemplarily, SSB beam 1 is the SSB beam with the largest RSRP in SSB beam subgroup 1, and the RSRP of SSB beam 1 is -85dBm. SSB beam 7 is the SSB beam with the largest RSRP in SSB beam subgroup 2, and the RSRP of SSB beam 7 is -50dBm. Then the beam measurement information corresponding to the base station includes SSB beam 1 and the RSRP of SSB beam 1 (i.e. -85dBm), and the beam measurement information corresponding to the RIS includes the RSRP of SSB beam 7 (i.e. -50dBm).

[0096] The present application can measure the signal strength of the beam of each SSB beam subgroup through the user equipment, and send the ID and signal strength value of the SSB beam with the largest signal strength in each SSB beam subgroup to the base station, so as to facilitate the base station to select the best beam to communicate with the user equipment. That is, the greater the signal strength of the SSB beam, the better the communication quality of the base station communicating with the user equipment when selecting the SSB beam, thereby improving the transmission performance.

[0097] In a possible implementation, the multiple communication devices are communication devices other than the access device; the access device is a device to which the beam selected when the user equipment accesses the base station belongs.

[0098] Optionally, before the above step S201, the user equipment needs to access the base station first. The steps for the user equipment to access the base station are as follows: the user equipment can monitor the SSB scanning beam, measure the signal strength and other parameter values ​​of the SSB beam transmitted by each communication device in multiple communication devices including the access device, and select the SSB beam with the largest signal strength from the SSB beams transmitted by multiple communication devices. Furthermore, the user equipment can initiate a random access request (also referred to as non-competitive random access) on the PRACH resource corresponding to the SSB beam. Furthermore, the base station can receive the random access request initiated by the user equipment, and determine the beam ID of the SSB beam selected by the user equipment based on the PRACH resource corresponding to the random access request. The device that transmits the SSB beam selected by the user equipment is the access device. One PRACH resource corresponds to one SSB beam.

[0099] Exemplarily, the multiple communication devices include a base station and two RISs (RIS1 and RIS2, respectively). The user equipment selects the SSB beam with the largest signal strength as SSB beam 2 from the SSB beams transmitted by the base station and the two RISs, that is, the beam ID of the SSB beam selected by the user equipment is SSB beam 2. Then the base station can determine that SSB beam 2 is a beam in SSB beam subgroup 1, and further determine that the device transmitting SSB beam 2 is the base station, that is, the device to which SSB beam 2 belongs is the base station, from which it can be known that the base station is the access device. At this time, the user equipment only needs to measure the beams transmitted by RIS1 and RIS2 to generate a beam measurement report.

[0100] This application allows the user equipment to measure the beams emitted by communication devices other than the access device after the user equipment accesses the base station. This is because when the user equipment accesses the base station, the base station can know the beam with the largest signal strength among the beams emitted by the access device. Normally, the base station will select the base station to communicate with the user equipment in a short time. If the position of the user equipment has not changed during this period of time, the beam with the largest signal strength among the beams emitted by the access device will also not change. Therefore, it is only necessary to measure the beams emitted by communication devices other than the access device, which can save network resources and improve communication efficiency.

[0101] S402: Perform beam selection based on the beam measurement report.

[0102] Optionally, the base station may perform beam selection based on the beam measurement report to select a beam for communicating with the user equipment.

[0103] Exemplarily, SSB beam 1 is the SSB beam with the largest RSRP in SSB beam subgroup 1, and the RSRP of SSB beam 1 is -85dBm. SSB beam 7 is the SSB beam with the largest RSRP in SSB beam subgroup 2, and the RSRP of SSB beam 7 is -50dBm. Then the beam measurement information corresponding to the base station includes SSB beam 1 and the RSRP of SSB beam 1 (i.e. -85dBm), and the beam measurement information corresponding to the RIS includes the RSRP of SSB beam 7 (i.e. -50dBm).

[0104] In one design, Fig.10 As shown, a beam management method provided in an embodiment of the present application, before the above step S401, the method further includes S501:

[0105] S501. Send beam grouping information to user equipment.

[0106] The beam grouping information includes the air interface resources corresponding to the beam transmitted by each communication device; the beam grouping information is used by the user equipment to measure the beam transmitted by each communication device and generate a beam measurement report.

[0107] Optionally, the base station may pre-configure the air interface resources used by each SSB beam subgroup. Different SSB beam subgroups use different air interface resources. After the user equipment accesses the base station, the base station may send beam grouping information to the user equipment. The beam grouping information includes the air interface resources used by each SSB beam subgroup. The air interface resources may be time domain resources.

[0108] Furthermore, the user equipment measures the beams included in the corresponding SSB beam subgroup according to the air interface resources used by each SSB beam subgroup.

[0109] In the present application, the user equipment can measure the beams included in different SSB beam subgroups according to the air interface resources of different SSB beam subgroups sent by the base station, so as to facilitate the base station to select beams according to the beam measurement information corresponding to different communication devices.

[0110] In one design, Fig.11 As shown, a beam management method provided in an embodiment of the present application, the method in the above step S402 specifically includes S601:

[0111] S601. Perform beam selection based on access beam information and beam measurement report.

[0112] The access beam information is used to characterize the beam selected when the user equipment accesses the base station.

[0113] Optionally, the base station may perform beam selection based on access beam information and beam measurement reports according to a certain algorithm.

[0114] Exemplarily, the access beam information is SSB beam 2, that is, a beam for communicating with the user equipment can be selected from SSB beam 2, SSB beam 1 and SSB beam 1.

[0115] The present application can select a beam to communicate with the user equipment based on the beam measurement report reported by the base station on the user equipment and the access beam information, which can further enable the base station to flexibly select the beam.

[0116] In one example, if the multiple communication devices include a base station and a RIS. The beam transmitted by the base station belongs to SSB beam subgroup 1, and the beam transmitted by the RIS belongs to SSB beam subgroup 2. Then the specific steps of beam management based on the method provided in the present application are: the user equipment monitors the SSB scanning beam, selects the beam ID of the SSB beam with the largest RSRP from the detected beams, and initiates a random access request on the PRACH resource corresponding to the SSB beam. Furthermore, the base station determines the beam ID of the SSB beam selected by the user equipment according to the PRACH resource corresponding to the random access request.

[0117] Furthermore, after the user equipment successfully accesses the base station, the base station sends beam grouping information to the user equipment to inform the user equipment of the frequency domain resources of SSB beam subgroup 1 and the frequency domain resources of SSB beam subgroup 2.

[0118] The user equipment measures SSB beam subgroup 1 and SSB beam subgroup 2 according to the beam grouping information, generates a beam measurement report, and sends the beam measurement report to the base station. The beam measurement report includes the beam ID and corresponding PSRP (i.e., RSRP1) of the beam with the largest PSRP in SSB beam subgroup 1, and the beam ID and corresponding PSRP (i.e., RSRP2) of the beam with the largest signal strength in SSB beam subgroup 2.

[0119] Furthermore, the base station selects a corresponding beam direction to communicate with the user equipment from the beam ID of the beam selected when the user equipment accesses the base station, the beam ID of the beam with the largest PSRP in SSB beam subgroup 1, and the beam ID of the beam with the largest signal strength in SSB beam subgroup 2 according to a certain algorithm.

[0120] The above mainly introduces the solution provided by the embodiment of the present application from the perspective of the method. In order to realize the above functions, it includes hardware structures and / or software modules corresponding to the execution of each function. Those skilled in the art should easily realize that, in combination with the units and algorithm steps of each example described in the embodiment disclosed herein, the embodiment of the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the present application.

[0121] The embodiment of the present application can divide the functional modules of a beam management method according to the above method example. For example, each functional module can be divided according to each function, or two or more functions can be integrated into one processing module. The above integrated module can be implemented in the form of hardware or in the form of software functional modules. Optionally, the division of modules in the embodiment of the present application is schematic and is only a logical functional division. There may be other division methods in actual implementation.

[0122] Fig.12 This is a schematic diagram of the structure of a beam management device provided in an embodiment of the present application. Fig.12 As shown, a beam management device 120 is used to enable a base station to flexibly select an SSB beam for communicating with a user equipment, for example, to perform Figure 4 A beam management method is shown. The beam management device 120 includes: a processing unit 1201 and a transmission unit 1202.

[0123] The processing unit 1201 is used to measure the beam transmitted by each communication device among multiple communication devices and generate a beam measurement report; the beam measurement report includes beam measurement information corresponding to each communication device.

[0124] The transmission unit 1202 is used to send a beam measurement report to the base station.

[0125] In one possible implementation, the transmission unit 1202 is also used to receive beam grouping information from the base station; the beam grouping information includes the air interface resources corresponding to the beam transmitted by each communication device; the processing unit 1201 is also used to measure the beam transmitted by each communication device based on the beam grouping information and generate a beam measurement report.

[0126] In a possible implementation, the access beam information is used to characterize the beam selected when the user equipment accesses the base station.

[0127] In a possible implementation, the beam measurement information includes the signal strength of a target beam; the target beam is a beam with the largest signal strength among multiple beams transmitted by a communication device.

[0128] In a possible implementation, the multiple communication devices are communication devices other than the access device; the access device is a device to which the beam selected when the user equipment accesses the base station belongs.

[0129] Fig.13 This is a schematic diagram of the structure of a beam management device provided in an embodiment of the present application. Fig.13 As shown, a beam management device 130 is used to enable a base station to flexibly select an SSB beam for communicating with a user equipment, for example, to perform Fig. 9 A beam management method is shown. The beam management device 130 includes: a transmission unit 1301 and a processing unit 1302.

[0130] The transmission unit 1301 is used to receive a beam measurement report from a user equipment; the beam measurement report includes beam measurement information corresponding to each communication device in multiple communication devices.

[0131] The processing unit 1302 is configured to perform beam selection based on the beam measurement report.

[0132] In one possible implementation, the transmission unit 1301 is also used to send beam grouping information to the user equipment; the beam grouping information includes the air interface resources corresponding to the beam transmitted by each communication device; the beam grouping information is used by the user equipment to measure the beam transmitted by each communication device and generate a beam measurement report.

[0133] In a possible implementation, the processing unit 1302 is further used to perform beam selection based on the access beam information and the beam measurement report; the access beam information is used to characterize the beam selected when the user equipment accesses the base station.

[0134] In a possible implementation, the beam measurement information includes the signal strength of a target beam; the target beam is a beam with the largest signal strength among multiple beams transmitted by a communication device.

[0135] In a possible implementation, the multiple communication devices are communication devices other than the access device; the access device is a device to which the beam selected when the user equipment accesses the base station belongs.

[0136] In the case of implementing the functions of the above-mentioned integrated modules in the form of hardware, the present application embodiment provides a possible structural diagram of the electronic device involved in the above-mentioned embodiment. Fig.14 As shown, an electronic device 160 is used to enable a base station to flexibly select an SSB beam for communicating with a user equipment, for example, to perform Figure 4 The electronic device 160 includes a processor 1601, a memory 1602 and a bus 1603. The processor 1601 and the memory 1602 may be connected via the bus 1603.

[0137] The processor 1601 is the control center of the communication device, which can be a processor or a general term for multiple processing elements. For example, the processor 1601 can be a general-purpose central processing unit (CPU) or other general-purpose processors. Among them, the general-purpose processor can be a microprocessor or any conventional processor.

[0138] As an embodiment, the processor 1601 may include one or more CPUs, such as Fig.14 CPU 0 and CPU 1 are shown in .

[0139] The memory 1602 may be a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a random access memory (RAM) or other type of dynamic storage device that can store information and instructions, an electrically erasable programmable read-only memory (EEPROM), a disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited to these.

[0140] As a possible implementation, the memory 1602 may exist independently of the processor 1601, and the memory 1602 may be connected to the processor 1601 via a bus 1603 for storing instructions or program codes. When the processor 1601 calls and executes the instructions or program codes stored in the memory 1602, a beam management method provided in an embodiment of the present application can be implemented.

[0141] In another possible implementation, the memory 1602 may also be integrated with the processor 1601 .

[0142] The bus 1603 may be an industry standard architecture (ISA) bus, a peripheral component interconnect (PCI) bus, or an extended industry standard architecture (EISA) bus. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Fig.14 Only one thick line is used in the diagram, but this does not mean that there is only one bus or only one type of bus.

[0143] It should be pointed out that Fig.14 The structure shown does not constitute a limitation on the electronic device 160. Fig.14 In addition to the components shown, the electronic device 160 may include more or fewer components than shown, or combine certain components, or arrange the components differently.

[0144] As an example, combining Fig.12 The functions implemented by the processing unit 1201 and the transmission unit 1202 in the beam management device 120 are similar to those Fig.14 The function of processor 1601 in is the same.

[0145] Optional, such as Fig.14 As shown, the electronic device 160 provided in the embodiment of the present application may further include a communication interface 1604 .

[0146] The communication interface 1604 is used to connect with other devices through a communication network. The communication network may be Ethernet, wireless access network, wireless local area network (WLAN), etc. The communication interface 1604 may include a receiving unit for receiving data and a sending unit for sending data.

[0147] In one design, in the electronic device provided in the embodiment of the present application, the communication interface can also be integrated into the processor.

[0148] Through the description of the above implementation methods, those skilled in the art can clearly understand that for the convenience and simplicity of description, only the division of the above functional units is used as an example. In practical applications, the above functions can be assigned to different functional units as needed, that is, the internal structure of the device can be divided into different functional units to complete all or part of the functions described above. The specific working process of the system, device and unit described above can refer to the corresponding process in the aforementioned method embodiment, and will not be repeated here.

[0149] An embodiment of the present application also provides a computer-readable storage medium, in which instructions are stored. When a computer executes the instructions, the computer executes each step in the method flow shown in the above method embodiment.

[0150] An embodiment of the present application provides a computer program product. When the computer instructions are executed on an electronic device, the electronic device executes a beam management method in the above method embodiment.

[0151] Among them, the computer-readable storage medium can be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or device, or any combination of the above. More specific examples of computer-readable storage media (a non-exhaustive list) include: an electrical connection with one or more wires, a portable computer disk, a hard disk. Random access memory (random access memory, RAM), read-only memory (read-only memory, ROM), erasable programmable read only memory (erasable programmable read only memory, EPROM), registers, hard disks, optical fibers, portable compact disc read-only memory (compact disc read-only memory, CD-ROM), optical storage devices, magnetic storage devices, or the above in a suitable combination, or any other form of computer-readable storage medium known in the art.

[0152] An exemplary storage medium is coupled to a processor so that the processor can read information from the storage medium and write information to the storage medium. Of course, the storage medium can also be an integral part of the processor. The processor and the storage medium can be located in an application specific integrated circuit (ASIC).

[0153] In the embodiments of the present application, a computer-readable storage medium may be any tangible medium that contains or stores a program, which may be used by or in conjunction with an instruction execution system, apparatus, or device.

[0154] Since the electronic device, computer-readable storage medium, and computer program product in the embodiments of the present application can be applied to the above method, the technical effects that can be obtained can also refer to the above method embodiments, and the embodiments of the present application will not be repeated here.

[0155] The above are only specific implementation methods of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions within the technical scope disclosed in the present application should be included in the protection scope of the present application.

Claims

1. A beam management method, characterized in that: Applied to user equipment; the method comprises: Measuring a beam transmitted by each communication device among a plurality of communication devices, and generating a beam measurement report; the beam measurement report includes beam measurement information corresponding to each communication device; Send the beam measurement report to the base station.

2. The method according to claim 1, characterized in that The measuring the beam transmitted by each communication device in the plurality of communication devices and generating a beam measurement report comprises: Receiving beam grouping information from the base station; the beam grouping information includes air interface resources corresponding to the beam transmitted by each communication device; Based on the beam grouping information, the beam transmitted by each communication device is measured to generate the beam measurement report.

3. The method according to claim 1, characterized in that The beam measurement information includes the signal strength of the target beam; the target beam is the beam with the largest signal strength among multiple beams transmitted by a communication device.

4. The method according to claim 1, characterized in that: The multiple communication devices are communication devices other than the access device; the access device is a device to which the beam selected when the user equipment accesses the base station belongs.

5. A beam management method, characterized in that: Applied to a base station; the method comprises: Receiving a beam measurement report from a user equipment; the beam measurement report includes beam measurement information corresponding to each communication device in a plurality of communication devices; Beam selection is performed based on the beam measurement report.

6. The method according to claim 5, characterized in that Before receiving the beam measurement report from the user equipment, the method further includes: Send beam grouping information to the user equipment; the beam grouping information includes air interface resources corresponding to the beam transmitted by each communication device; the beam grouping information is used by the user equipment to measure the beam transmitted by each communication device and generate the beam measurement report.

7. The method according to claim 5, characterized in that The performing beam selection based on the beam measurement report includes: Beam selection is performed based on the access beam information and the beam measurement report; the access beam information is used to characterize the beam selected when the user equipment accesses the base station.

8. The method according to claim 5, characterized in that The beam measurement information includes the signal strength of the target beam; the target beam is the beam with the largest signal strength among multiple beams transmitted by a communication device.

9. The method according to claim 5, characterized in that The multiple communication devices are communication devices other than the access device; the access device is a device to which the beam selected when the user equipment accesses the base station belongs.

10. A beam management device, characterized in that: Applied to user equipment; The beam management device comprises: a processing unit and a transmission unit; The processing unit is configured to measure a beam transmitted by each communication device among the plurality of communication devices and generate a beam measurement report; the beam measurement report includes beam measurement information corresponding to each communication device; The transmission unit is used to send the beam measurement report to the base station.

11. A beam management device, characterized in that: Applied to a base station; the beam management device comprises: a transmission unit and a processing unit; The transmission unit is used to receive a beam measurement report from a user equipment; the beam measurement report includes beam measurement information corresponding to each communication device in a plurality of communication devices; The processing unit is used to perform beam selection based on the beam measurement report.

12. An electronic device, characterized in that: include: Processor and memory; The memory is used to store one or more programs, and the one or more programs include computer-executable instructions. When the electronic device is running, the processor executes the computer-executable instructions stored in the memory to enable the electronic device to perform the method described in any one of claims 1-9.

13. A computer-readable storage medium storing one or more programs, characterized in that: The one or more programs include instructions which, when executed by a computer, cause the computer to perform the method of any one of claims 1-9.

14. A computer program product, characterized in that The computer program product comprises computer instructions, and when the computer instructions are executed on an electronic device, the electronic device executes the method according to any one of claims 1 to 9.

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