Beam management method and apparatus

Abstract

The present application provides a beam management method and apparatus. The method comprises: broadcasting access information multiple times, the access information sent each time corresponding to a different directed beam; obtaining perception information by means of the sent access information for each directed beam; and on the basis of the perception information, determining an optimal narrow beam index of at least one sensing node that has received the access information. Resource overhead and time delay can be effectively reduced.

Description

A beam management method and apparatus

[0001] The present application claims priority to the Chinese patent application No. 202410465225.8, filed on April 17, 2024, and entitled "A beam management method and apparatus", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application relates to the field of communication, and in particular to a beam management method and apparatus. BACKGROUND

[0003] In the field of communication, the higher the frequency used, the greater the path loss of electromagnetic waves in space. Therefore, beamforming technology is developed to focus energy and obtain higher gain in the desired direction. At the same time, considering that a node needs to perform the task of communicating with multiple nodes, the technology of simultaneously forming multiple beams is usually adopted, which is usually referred to as multi-beam technology.

[0004] Multi-beam technology makes the cooperative management of beams more challenging than single-beam technology, mainly in terms of resource overhead and latency in the beam scanning process. Multi-beam technology has the problems of large resource overhead and high latency. How to effectively reduce resource overhead and latency becomes a problem to be solved. SUMMARY

[0005] The present application provides a beam management method and apparatus, which can effectively reduce resource overhead and latency.

[0006] In a first aspect, the present application provides a beam management method, which is applied to a sensing node side, and in particular, the method is executed by a second sensing node or an apparatus (such as a chip) in the second sensing node. The method comprises: broadcasting access information multiple times, the access information sent each time corresponds to a different pointing beam; obtaining sensing information through the access information sent by each pointing beam; and determining an optimal narrow beam index of at least one sensing node receiving the access information based on the sensing information.

[0007] For example, the second sensing node periodically broadcasts access information in the network, which can be a synchronization signal block (SSB) or the like, and the network should also include at least one other sensing node, such as a first sensing node. For example, the second sensing node can periodically poll the SSBs using different pointing beams. For example, when the first sensing node receives at least one SSB transmitted by the second sensing node, the second sensing node can sense the sensing information of the first sensing node (for example, the sensing information can be used to determine the orientation relationship between the second sensing node and the first sensing node, such as the angle), and the second sensing node can determine the optimal narrow beam index of the first sensing node through the sensing information between the first sensing node and the second sensing node. Other sensing nodes can refer to the first sensing node, that is, the second sensing node can obtain the optimal narrow beam index of each sensing node through the sensing information between each passing node. There are many ways to obtain the optimal narrow beam index through the sensing information, which are not limited in the present application. For example, the optimal narrow beam index can be obtained by angle estimation based on the echo when the SSB is transmitted; or the optimal narrow beam index can be determined by angle estimation after each pointing beam transmits the SSB.

[0008] The beam management method provided by the present application can determine the optimal narrow beam index of each sensing node that receives the access information through the sensing information, such as determining the first optimal narrow beam index of the first sensing node. In the subsequent communication process, the corresponding beam of the first optimal narrow beam index can be used to transmit signals to the first sensing node, and the transmission beam does not need to be determined again through polling scanning or the like. The channel information required in the subsequent communication step can be obtained, and the optimal narrow beam index can be determined once to perform the subsequent communication, which effectively reduces the number of beam scanning, reduces resource consumption and reduces the time delay.

[0009] In a possible implementation, the system includes multiple nodes, and an exemplary first node needs to access a second node to implement communication and sensing related services. Therefore, the second node determines a first optimal narrow beam index for the first node, and then sends a signal to the first node through a first beam corresponding to the first optimal narrow beam index. The method further includes: sending a first signal to the first node through the first beam, the first beam being determined according to the first optimal narrow beam index, and the first signal being a channel state information-reference signal for beam management (CSI-RS for BM).

[0010] In the P2 process, the second node no longer performs beam scanning, but can determine a beam through the previously determined optimal narrow beam index, and interact with other nodes through the corresponding beam. For example, the second node determines a first beam based on the first optimal narrow beam index for the first node, and sends a CSI-RS for BM signal through the first beam, and only sends the signal once, without further polling to send the CSI-RS for BM to determine a suitable beam, thereby effectively reducing resource consumption and reducing latency.

[0011] In a possible implementation, the method further includes: sending a second signal to the first node through the first beam, the second signal being used to obtain channel information of the first beam. The second signal can be a receiver quasi co location (Rx QCL) signal.

[0012] In the P3 process, the second node no longer performs beam scanning, but can determine a beam through the previously determined optimal narrow beam index, and interact with other nodes through the corresponding beam. For example, the second node determines a first beam based on the first optimal narrow beam index for the first node, and sends an Rx QCL signal through the first beam, and only sends the signal once, without further polling to send the Rx QCL to determine a suitable beam, thereby effectively reducing resource consumption and reducing latency.

[0013] In a possible implementation, the second node can obtain multiple sensing data such as orientation and energy size, and after obtaining the sensing data, can perform angle estimation through different operations, and determine the optimal narrow beam index based on the angle.

[0014] In a second aspect, the present application provides a beam management method, which is applied to a sensing node side, and in particular, the method is performed by a first sensing node or a device (e.g., a chip) in the first sensing node. The method comprises: receiving at least one access information, the access information being sent by a second sensing node, each time the access information sent by the second sensing node corresponds to a different pointing beam; and determining, according to the sensing information corresponding to each of the access information, a second optimal narrow beam index of the second sensing node for the first sensing node.

[0015] For example, the second sensing node periodically broadcasts access information in a network, the access information can be a synchronization signal block (SSB) or the like, and other sensing nodes in the network, such as the first sensing node, receive at least one SSB and can sense the sensing information of the second sensing node (e.g., the angle between the first sensing node and the second sensing node can be determined according to the sensing information). The first sensing node can determine the optimal narrow beam index of the second sensing node corresponding to the first sensing node according to the sensing information between the first sensing node and the second sensing node, which is denoted as a second optimal narrow beam index. There are many ways to obtain the optimal narrow beam index through the sensing information, which are not limited by the present application.

[0016] The beam management method provided by the present application can determine the optimal narrow beam index of each sensing node receiving the access information for the second sensing node, such as the first sensing node, which can determine that the optimal narrow beam index between the first sensing node and the second sensing node is the second optimal narrow beam index. In the subsequent communication process, the second beam corresponding to the second optimal narrow beam index can be used to transmit signals to the second sensing node, and there is no need to determine the transmission beam again through polling scanning or the like, so that the information to be transmitted in the subsequent communication step can be realized, and once the optimal narrow beam index is determined, the subsequent communication can be performed through the index, which effectively reduces the number of beam scanning, and realizes the effect of reducing resource consumption and reducing time delay.

[0017] In a possible implementation, a third signal is transmitted to the second sensing node once using the second beam, the second beam is determined according to the second optimal narrow beam index, and the third signal is used for access attempt in a physical random access channel (PRACH).

[0018] In a possible implementation, the method further comprises: transmitting a report to the second sensing node once using the second beam, the report being used to indicate the channel information between the first sensing node and the second sensing node.

[0019] In a possible implementation, the sensing information is an angle.

[0020] It should be understood that the second aspect of the present application corresponds to the technical solutions of the first aspect of the present application, and the beneficial effects obtained by each aspect and the corresponding feasible implementation manners are similar, which will not be repeated here.

[0021] In a third aspect, the present application provides a second sensing node, comprising: a transceiver module, configured to broadcast access information multiple times, the access information corresponding to a different pointing beam each time; a sensing module, configured to obtain sensing information through the access information sent by each pointing beam; and a processing module, configured to determine an optimal narrow beam index of at least one sensing node receiving the access information based on the sensing information.

[0022] In a possible implementation manner, the at least one sensing node comprises the first sensing node, and the first optimal narrow beam index is an optimal narrow beam index of the first sensing node by the second sensing node. The transceiver module is further configured to send a first signal to the first sensing node once using a first beam, the first beam being determined according to the first optimal narrow beam index, and the first signal being a downlink channel state information reference signal for beam management.

[0023] In a possible implementation manner, the transceiver module is further configured to send a second signal to the first sensing node once using a first beam, the second signal being used to obtain channel information using the first beam.

[0024] In a possible implementation manner, the sensing information is an angle.

[0025] It should be understood that the third aspect of the present application corresponds to the technical solutions of the first aspect of the present application, and the beneficial effects obtained by each aspect and the corresponding feasible implementation manners are similar, which will not be repeated here.

[0026] In a fourth aspect, the present application provides a first sensing node, comprising: a transceiver module, configured to receive at least one access information, the access information being sent by a second sensing node; and a sensing module, configured to determine a second optimal narrow beam index of the first sensing node to the second sensing node according to obtained sensing information corresponding to each of the access information.

[0027] In a possible implementation manner, the transceiver module is further configured to send a third signal to the second sensing node once using a second beam, the second beam being determined by the processing module according to the second optimal narrow beam index, and the third signal being used for access attempt on a random access channel (PRACH).

[0028] In a possible implementation manner, the transceiver module is further configured to send a report to the second sensing node once using a second beam, the report being used to indicate channel information between the second sensing node. In a possible implementation manner, the transceiver module is further configured to send a report to the second sensing node once using a second beam, the report being used to indicate channel information between the second sensing node.

[0029] In a possible implementation, the perception information is an angle.

[0030] It should be understood that the fourth aspect of the present application corresponds to the technical solutions of the first aspect or the second aspect of the present application, and the beneficial effects obtained by each aspect and the corresponding possible implementation manners are similar, which will not be described here again.

[0031] In a fifth aspect, the present application provides a communication apparatus, which can be the second sensing node or a device (for example, a chip) in the second sensing node. The communication apparatus includes a module for performing the method as described in any of the above aspects or any possible implementation manner of any aspect, for example, a processing module and a transceiver module. The processing module can be a processor, and the transceiver module can be a transceiver. When the communication apparatus is a terminal device, the transceiver can be a radio frequency module. When the communication apparatus is a device in a terminal device, the transceiver can be an input / output interface, a pin, or a circuit, etc.

[0032] In a sixth aspect, the present application provides a communication apparatus, which can be the first sensing node or a device (for example, a chip) in the first sensing node. The communication apparatus includes a module for performing the method as described in any of the above aspects or any possible implementation manner of any aspect, for example, a processing module and a transceiver module. The processing module can be a processor, and the transceiver module can be a transceiver. When the communication apparatus is a network device, the transceiver can be a radio frequency module. When the communication apparatus is a device in a network device, the transceiver can be an input / output interface, a pin, or a circuit, etc.

[0033] In a seventh aspect, the present application provides a communication apparatus, which includes at least one processor coupled with a storage medium, and the storage medium stores instructions. When the instructions are run by the processor, the processor is used to perform the method as described in any of the above aspects or any possible implementation manner of any aspect. The storage medium can be included in the apparatus or located outside the apparatus.

[0034] In an eighth aspect, the present application provides a computer readable storage medium, which stores a computer program. When the computer program is executed by a processor, the method as described in any of the above aspects or any possible implementation manner of any aspect is implemented.

[0035] In a ninth aspect, the present application provides a computer program product, which contains instructions. When the instructions are run on a processor, the method as described in any of the above aspects or any possible implementation manner of any aspect is implemented.

[0036] In a tenth aspect, the present application provides a system, which includes the second sensing node as described in the third aspect and the first sensing node as described in the fourth aspect.

[0037] It should be understood that the fifth aspect to the tenth aspect of the present application are consistent with or corresponding to the technical solutions of the first aspect or the second aspect of the present application, and the beneficial effects obtained by each aspect and the corresponding feasible implementation manners are similar, which will not be described here. BRIEF DESCRIPTION OF DRAWINGS

[0038] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the description of the embodiments of the present application will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0039] Fig. 1 is a structural schematic diagram of a system 100 provided by an embodiment of the present application;

[0040] Fig. 2a is a structural schematic diagram of a general-sensing integrated network system 200 provided by an embodiment of the present application;

[0041] Fig. 2b is a structural schematic diagram of a general-sensing integrated network system 300 provided by an embodiment of the present application;

[0042] Fig. 3 is a flow schematic diagram of a beam management method provided by an embodiment of the present application;

[0043] Fig. 4 is a beam management schematic diagram of P1 provided by an embodiment of the present application;

[0044] Fig. 5 is a flow schematic diagram of another beam management method provided by an embodiment of the present application;

[0045] Fig. 6 is a flow schematic diagram of another beam management method provided by an embodiment of the present application;

[0046] Fig. 7 is a flow schematic diagram of another beam management method provided by an embodiment of the present application;

[0047] Fig. 8 is a flow schematic diagram of another beam management method provided by an embodiment of the present application;

[0048] Fig. 9 is a beam management schematic diagram of P2 provided by an embodiment of the present application;

[0049] Fig. 10 is a flow schematic diagram of another beam management method provided by an embodiment of the present application;

[0050] Fig. 11 is a beam management schematic diagram of P3 provided by an embodiment of the present application;

[0051] Fig. 12 is a flow schematic diagram of another beam management method provided by an embodiment of the present application;

[0052] Fig. 13 is a structural schematic diagram of a second common sense node or a device in the second common sense node according to an embodiment of the present application;

[0053] Fig. 14 is a structural schematic diagram of a first common sense node or a device in the first common sense node according to an embodiment of the present application;

[0054] Fig. 15 is a structural schematic diagram of a device 50 according to an embodiment of the present application;

[0055] Fig. 16 is a structural schematic diagram of a device 60 according to an embodiment of the present application. DETAILED DESCRIPTION

[0056] In order to make the personnel in the technical field better understand the scheme in the present application, the technical scheme in the embodiments of the present application will be clearly and completely described below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments.

[0057] The term "and / or" in the present application is only used to describe the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B can mean that A exists alone, A and B exist together, and B exists alone, where A and B can be single or multiple. "At least one of the following" or similar expressions are used to represent any combination of the listed items, for example, at least one of A, B and (or) C can mean that A exists alone, B exists alone, C exists alone, A and B exist together, B and C exist together, A and C exist together, and A, B and C exist together, where A, B and C can be single or multiple.

[0058] The terms "first" and "second" and the like in the description and claims of the embodiments of the present application are used to distinguish different objects, rather than to describe a specific order of the objects. For example, the first target object and the second target object are used to distinguish different target objects, rather than to describe a specific order of the target objects.

[0059] In the embodiments of the present application, the words such as "exemplary" or "for example" are used to mean an example, illustration or description. Any embodiment or design scheme described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as more preferred or more advantageous than other embodiments or design schemes. Rather, the words such as "exemplary" or "for example" are intended to present the relevant concept in a specific manner.

[0060] In the description of the embodiments of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more. For example, a plurality of processing units means two or more processing units; a plurality of systems means two or more systems.

[0061] For the convenience of understanding, the related terms or terminologies used in the embodiments of the present application are explained as follows:

[0062] 1、beam alignment

[0063] It refers to the operation of adjusting the direction of the beam of a node to the desired direction.

[0064] 2、beam training

[0065] It refers to the operation of finding the optimal beam through the transmission and reception of the beam of a node.

[0066] 3、beam maintenance

[0067] It refers to the operation of monitoring the current beam state and maintaining the used beam as the optimal beam of a node.

[0068] 4、beam failure recovery

[0069] It refers to the operation of reestablishing the connection of a node due to the interruption of the connection.

[0070] 5、integrated sensing and communication (ISAC) system

[0071] It is a system that can fully and reasonably utilize the sensing capability of the system to assist the management of multiple beams. Although the current related technology gives the sensing information that the ISAC system can obtain, it lacks a method for utilizing the obtained sensing information to simplify the beam scanning process. The embodiments of the present application will supplement this part of the content.

[0072] 6、sensing and communication node

[0073] It is a node with communication capability and sensing capability.

[0074] Embodiments of the present application provide a beam management method, which can be applied to a wireless communication system, such as a cellular network or a wireless local area network system, and the like. The method can be implemented by a device for beam management in a wireless communication system. The device can include at least one of a first device or a second device. The first device can be a sensing node or a device in a sensing node. For ease of description, the sensing node is defined as a second sensing node in embodiments of the present application. The second sensing node can be a base station, a central node in a network, or other nodes. The second device can also be a sensing node or a device in a sensing node. For ease of description, the sensing node is defined as a first sensing node in embodiments of the present application. The first sensing node can be a user equipment (UE), an edge node in a network, or other nodes. The device provided in embodiments of the present application can be a whole machine device, or a chip or processing system installed in a whole machine device. The device can implement the method and functions of embodiments of the present application under the control of the chip or processing system, such as a communication device or a chip or processor in a communication device. FIG. 1 is a structural schematic diagram of a system 100 provided in embodiments of the present application. As shown in FIG. 1, the system 100 includes a base station 10 and at least one UE 20. Embodiments of the present application take the first sensing node as the UE 20 and the second sensing node as the base station 10 as an example to describe the beam management method, but are not limited thereto. The system 100 can be a wireless local area network (WLAN), a narrow band-internet of things (NB-IoT), a global system for mobile communications (GSM), an enhanced data rate for gsm evolution (EDGE), a wideband code division multiple access (WCDMA), a code division multiple access 2000 (CDMA2000), a time division-synchronization code division multiple access (TD-SCDMA), an LTE system, satellite communication, a fifth-generation (5G) communication system, a sixth-generation (6G) communication system, or a new communication system to be developed in the future.

[0075] The second sensing node involved in the embodiments of the present application can refer to the base station 10 provided in FIG. 1. The base station 10 can be a radio access network (RAN) node that accesses a UE to a wireless network. Some examples of the base station 10 are: a gNB, a transmission reception point (TRP), an evolved Node B (eNB), a radio network controller (RNC), a Node B (NB), a base station controller (BSC), a base transceiver station (BTS), a home Node B (HNB), a baseband unit (BBU), or a wireless fidelity (Wifi) access point (AP), integrated access and backhaul (IAB), and the like. In one network structure, the base station 10 can be a centralized unit (CU) and a distributed unit (DU) separation architecture, that is, the base station 10 can refer to the CU or the base station 10 can refer to the DU. In another network structure, the base station 10 can also be composed of the CU and the DU. The CU and the DU can be understood as a division of the base station from the perspective of logical functions. The CU and the DU can be physically separated or deployed together, and the embodiments of the present application do not make specific limitations thereto. In some scenarios, the base station 10 can be a base station in a sensing integrated network, which can not only realize the transmission of communication data but also obtain sensing information. In other scenarios, the base station 10 can be a communication device that can obtain sensing information through other means.

[0076] The first common sense node involved in the embodiments of the present application can refer to the UE 20 provided in FIG. 1. The UE 20 is a device with wireless transceiver function, which refers to a device providing at least one of voice or data connectivity to a user, also known as a terminal (terminal device), a mobile station (MS), a mobile terminal (MT), etc. The UE can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; can also be deployed on water, such as ships, etc.; can also be deployed in the air, such as airplanes, balloons and satellites, etc. The UE can be a mobile phone, a pad, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self driving, a wireless terminal device in remote medical, a wireless terminal device in smart grid, a wireless terminal in transportation safety, a wireless terminal device in smart city, a wireless terminal in smart home, a robot, a smart robot, etc. In some scenarios, the UE 20 can be a certain common sense integration (i.e., communication and sensing integration) node in a common sense integrated network, which can not only realize the transmission of communication data, but also obtain sensing information. In other scenarios, the UE 20 can be a communication device capable of obtaining sensing information through other means.

[0077] In a possible implementation, in the interworking integrated network system, all or part of the devices such as base stations and UEs can be regarded as including a center node (a second interworking node) and other interworking nodes (such as a first interworking node 1 and a first interworking node 2); in another possible implementation, in the interworking integrated network system, there is no center node, and each interworking node can be regarded as a second interworking node, and other interworking nodes accessed by the second interworking node can be regarded as first interworking nodes. FIG. 2a is a structural schematic diagram of an interworking integrated network system 200 provided by an embodiment of the present application, as shown in FIG. 2a, the system 200 can include all or part of devices such as base stations and UEs, that is, the interworking integrated network system 200 can be a network structure including a second interworking node 1 and other interworking nodes (such as including a first interworking node 2 and a first interworking node 3), for example, the second interworking node 1 can be an interworking integrated base station, the first interworking node 2 can be a terminal such as a car or a drone, and the first interworking node 3 can be a terminal such as a mobile phone or a tablet computer. FIG. 2b is a structural schematic diagram of an interworking integrated network system 300 provided by an embodiment of the present application, as shown in FIG. 2b, the interworking integrated network system 300 can be an ad-hoc network structure without a center node, for example, the system includes a plurality of through nodes, for example, if an interworking node 2 accesses an interworking node 3, the through node 3 can be regarded as a second interworking node (such as a base station), and the interworking node 2 can be regarded as a first interworking node (such as a UE).

[0078] In the system shown in FIG. 1, FIG. 2a or FIG. 2b, if each interworking node (such as a base station, a UE or the like) can be interworking integrated, that is, each interworking node can communicate and perceive in a beamforming manner, and the beamforming manner is not limited, and can be implemented in any manner such as analog beamforming, analog-digital hybrid beamforming or digital beamforming. Embodiments of the present application take a base station as the second interworking node and a UE as the first interworking node as an example for description, and other interworking nodes can refer to the examples of the present application when performing the beam management method, and will not be described in detail.

[0079] In the procedure of beam management, beam management can be implemented in various stages of communication, such as the beam management procedure of the 5th generation mobile communication technology (5G) new radio (NR) of the 3rd generation partnership project (3GPP), which covers the entire communication process. For example, in the 5G NR technology, beam management includes three different stages, denoted as phase 1 (P1), phase 2 (P2) and phase 3 (P3). P1 can also be referred to as the idle state, which refers to the process of establishing a connection between the base station and the UE. P2 and P3 both correspond to the connected state, which refers to the process of taking some necessary signaling interaction after the connection between the base station and the UE has been established. The process from P1 to P3 can also be referred to as the beam alignment or beam training process. In addition, the process of P1 to P3 can be repeated in the process of beam maintenance and beam failure recovery, so in the following examples of the embodiments of the present application, the beam management of P1, P2 and P3 included can be applied to the beam management in the process of beam alignment, or beam training, or beam maintenance, or beam failure recovery.

[0080] In an example of the beam management of P1 to P3, the base station and the UE need to perform multiple beam scans to achieve the communication requirement from the unconnected to the connected full procedure: in the beam management procedure of P1 to P3, the beams used by the base station and the UE are changed, for example, in P1, the beams used by the base station and the UE are wide beams; in P2 and P3, the UE accesses a base station, which can be understood as completing pairing, and then the base station needs to determine the optimal narrow beam for each accessed UE. Similarly, each UE also needs to determine the optimal narrow beam for the accessed base station. Therefore, in P1 to P3, as a base station, 2 times of beam scanning need to be performed in the P1 process, 1 time of beam scanning needs to be performed in the P2 process, and a total of 3 rounds of beam scanning are performed; as a UE, for example, the first UE, 1 time of beam scanning needs to be performed in the P1 process, 1 time of beam scanning needs to be performed in the P3 process, and a total of 2 rounds of beam scanning are performed. This beam management method has more rounds of beam scanning from the perspective of the base station or the UE, which leads to high resource overhead and time delay. Taking some beam pointing parameter values as an example, the process is described: assuming that the base station and the UE interact, one possible parameter setting is that the base station supports a maximum of 64 different beam pointing numbers, which means that in the P1 process, the base station first sends 64 SSBs in the first beam scan, and the first beam scan is used for cell search, timing and frequency synchronization, beam measurement, selection and recovery, and other tasks; in the second beam scan, the base station again polls 64 different beam pointing physical random access channels (PRACH) to receive random access channel preambles (RACH Preamble), and the second beam scan is used to achieve uplink synchronization between the base station and the UE, allocate a unique identifier for each UE accessed, and allocate corresponding resources (RRC connection request) for message3, etc. Then, in the P2 process, the base station performs the third beam scan procedure, and one possible parameter setting is that the number of different beam pointing scanned is 4, and the third beam scan mainly sends CSI-RS for BM signals for beam measurement and selection, and at the same time, the scan can also be used for channel information acquisition to complete precoding, etc.In another aspect, one possible parameter setting is that the UE supports a maximum number of different beam directions of 64, which means that in the P1 procedure, the UE uses 64 different beam directions in the first beam sweeping to receive SSBs (since the UE receives SSBs in each beam sweeping direction, the received SSBs should be multiple, denoted as SSBs) sent by the base station for cell selection, beam measurement, selection and recovery, and other tasks. Then, in the P3 procedure, the UE also performs beam sweeping, and one possible parameter setting is that the number of different beam directions is 4. The UE performs beam sweeping in P3 to determine the optimal narrow beam index that the UE needs to use to access the base station. It can also be used to receive quasi co location (QCL) and obtain channel estimation information, such as Doppler frequency offset, Doppler spread, average delay, and delay spread. As can be seen from this example, in order to complete the entire process of communication between the base station and the UE, the number of scanning times of the base station and the UE is relatively high. If there are multiple base stations and multiple UEs in a scene, the resource overhead caused by the large number of scanning rounds is larger, and the time delay is higher.

[0081] Embodiments of the present application provide a beam management method, which can effectively reduce the problem of a large number of beam sweeping rounds, thereby reducing resource overhead and time delay. FIG. 3 is a flowchart of a beam management method provided by an embodiment of the present application. The method is performed by a first device (for example, a chip), which can be a second sensing node such as a base station or a device in the base station. FIG. 3 takes the first device as a second sensing node as an example for description, and other implementation forms of the first device can refer to the present example and will not be described in detail. The method provided in FIG. 3 can be applied in various systems such as FIG. 1, FIG. 2a or FIG. 2b. As shown in FIG. 3, the method includes S101 to S103.

[0082] For example, S101 to S103 are implemented before the second sensing node establishes a connection with the first sensing node, that is, S101 to S103 are implemented in the P1 procedure. For example, S101 to S103 can be performed in the process of preparing to establish a connection between the base station and the UE.

[0083] S101. The second sensing node broadcasts access information multiple times, and the access information transmitted each time corresponds to a different beam direction.

[0084] The access information can be an SSB, and the SSB transmitted each time corresponds to a different beam direction. Embodiments of the present application take the access information as an SSB as an example for description, and other access information can refer to the SSB and will not be listed one by one.

[0085] For example, the base station can periodically adopt beams with different directions, and poll the transmission of SSBs (since the base station transmits at least one SSB in each beam scanning direction, the transmitted SSBs should be multiple, denoted as SSBs). The SSBs transmitted by the base station can be received by different UEs. Embodiments of the present application take a first UE included in a first sensing node that receives the SSBs transmitted by the base station as an example for description. The first UE can receive the SSBs in at least one direction, or the first UE can receive the SSBs in a certain direction.

[0086] In S102, the second sensing node obtains sensing information through the access information transmitted by each directional beam.

[0087] For example, the base station can obtain the sensing information through the SSBs transmitted by each directional beam. Since the base station provided by the embodiments of the present application is a base station capable of obtaining sensing information, the sensing information can be obtained based on each SSB.

[0088] In S103, the second sensing node determines an optimal narrow beam index of at least one sensing node that receives the access information based on the sensing information.

[0089] For example, referring to FIG. 2a, there are multiple through nodes (such as UEs) that receive the access information (such as SSBs) broadcast by the second sensing node, and the first sensing node is included. In the embodiments of the present application, the first sensing node is taken as a first UE, and the second sensing node is taken as a base station for example. The base station estimates the angle of each UE corresponding to each direction through the SSBs transmitted by each directional beam. Based on this, the base station determines an optimal narrow beam index for each UE that receives the SSBs. In the embodiments of the present application, the optimal narrow beam index determined by the base station for the first UE is defined as a first optimal narrow beam index.

[0090] Optionally, there are many ways to determine the optimal narrow beam index for the UE. For example, the base station can perform angle estimation according to the echo when transmitting the SSBs, that is, in the form of mono-static sensing, to determine the optimal narrow beam index that the base station needs to adopt for each UE. In the embodiments of the present application, one way to determine the optimal narrow beam index is to determine it according to angle estimation, and another way to determine the optimal narrow beam index is to determine it through echo energy, which is taken as an example for description, but is not limited thereto.

[0091] In a possible implementation, after the base station transmits the SSBs through the respective beams, the base station determines the optimal narrow beam index of the UE through angle estimation. Taking the base station determining the first optimal narrow beam index of the first UE as an example: assuming that the estimation result obtained by the base station is that the first UE is at a direction of 0.123° of the base station, the base station calculates the index of the closest beam pointing in the given beam codebook, and takes the index as the first optimal narrow beam index. For example: the given beam codebook is: beam index 1: beam pointing at 0°; beam index 2: beam pointing at -5°; and beam index 3: beam pointing at +5°. Then the base station can calculate that the angle difference between the azimuth of the first UE and the beam index 1 is 0.123°; the angle difference between the azimuth of the first UE and the beam index 2 is 5.123°; and the angle difference between the azimuth of the first UE and the beam index 3 is 4.877°, wherein the base station uses the beam index 1 (i.e., the beam pointing at 0°) to serve the first UE, which is the index of the closest beam pointing in the given codebook, and based on this, the base station can determine to use the beam index 1 as the first optimal narrow beam index, and other UEs are determined in the same way, and no further examples are given.

[0092] Optionally, the given beam codebook can be a pre-stored codebook in the base station, or a codebook agreed in advance, and the like. The estimation algorithm of the angle estimation can include a classic super-resolution angle estimation algorithm, a spatial spectrum estimation algorithm (multiple signal classification, MUSIC), and the like. The embodiments of the present application are not limited.

[0093] In a possible implementation, after the base station transmits the SSBs through the respective beams, the base station determines the optimal narrow beam index of the UE through echo energy. Taking the base station determining the first optimal narrow beam index of the first UE as an example: since the base station can obtain the pointing of each beam transmitting the SSB, the base station can obtain the received energy size of the current pointing through an algorithm such as fast Fourier transform (FFT) compression, and then select the beam index with the strongest received energy to determine the optimal narrow beam index. Assuming that the base station obtains the echo energy of the first UE at each pointing, the base station can determine that the first optimal narrow beam index of the first UE is the beam index 2 according to the angle and the given beam codebook, for example: beam index 1: beam pointing at 0°; beam index 2: beam pointing at -5°; and beam index 3: beam pointing at +5°.

[0094] The beam management method provided in the embodiments of the present application can determine the optimal narrow beam index of each UE receiving the SSB through the sensing information. For example, the sensing information can be an angle. In the subsequent communication process, such as the P2 and P3 processes, there is no need to poll and scan to obtain channel information, and the subsequent required signals can be transmitted through the optimal narrow beam index determined by the embodiments of the present application, so as to realize the complete process of communication between the base station and the UE. In this way, the number of beam scanning of the base station is reduced, and the effects of reducing resource consumption and reducing time delay are realized.

[0095] Optionally, with reference to the examples in FIG. 1, FIG. 2a or FIG. 2b, there are multiple UEs in the network, and FIG. 4 is a schematic diagram of the beam management of P1 provided in the embodiments of the present application. With reference to FIG. 4, if the number of UEs sensed by the base station is less than or equal to the number of multi-beams that can be simultaneously shaped by the base station, the PRACH can be received in a space division manner; if the number of UEs sensed by the base station is greater than the number of multi-beams that can be simultaneously shaped by the base station, the PRACH can be received in a space division plus time division best effort manner.

[0096] In a possible implementation, in the P2 process, the base station needs to obtain the state of the downlink channel, etc., and can be implemented by transmitting a signal to the UE through the first beam once, for example. The first beam is determined according to the first optimal narrow beam index. The base station can use the first beam to transmit a first signal to the first UE once. The first signal can be a downlink channel state information reference signal for beam management, for example. The first signal can be a CSI-RS for BM.

[0097] In a possible implementation, in the P3 process, the base station needs to obtain channel information, which can be implemented by transmitting a signal to the UE through the first beam once, for example. The base station can use the first beam to transmit a second signal to the first UE once. The second signal can be used to obtain channel information when the first beam is used, for example. The second signal can be a Rx QCL) used to obtain channel estimation information, such as Doppler frequency offset, Doppler spread, average delay, delay spread, etc.

[0098] As can be seen from the above examples, the beam management method provided in the embodiments of the present application only performs one scan in the P1 to P3 processes. After determining the optimal narrow beam index of each UE, such as the first optimal narrow beam index of the first UE, in the subsequent process, a signal can be transmitted to the first UE through the first beam determined by the first optimal narrow beam index, so as to realize various communication requirements of the base station and the UE in the connected state.

[0099] Fig. 5 is a flow diagram of another beam management method provided by the embodiments of the present application, which is performed by a second device (e.g., a chip), which can be a first sensing node, such as a UE or a device in the UE, etc. Fig. 5 takes the second device as the first sensing node as an example for illustration, and other implementation forms of the second device can refer to the present example, which will not be expanded here.

[0100] For example, S201 and S202 are performed before the second sensing node establishes a connection with the first sensing node, i.e., S201 and S202 are implemented in the P1 process. For example, S201 and S202 can be performed in the process of preparing to establish a connection between the base station and the UE.

[0101] In S201, the first sensing node receives at least one access information.

[0102] For example, since the base station can periodically use beams with different directions to poll the transmission of access information, such as SSBs, and be received by different UEs, the embodiments of the present application take the first UE included in a plurality of first sensing nodes (e.g., UEs) that receive the SSBs transmitted by the base station as an example for illustration. Each UE can use a beam with a different direction to scan each direction to receive the SSBs transmitted by the base station, for example, the first UE can receive the SSB (or SSBs) in at least one direction, or the first UE can receive the SSB in a certain direction.

[0103] In S202, the first sensing node determines a second optimal narrow beam index of the first sensing node to the second sensing node according to the perception information corresponding to each access information.

[0104] For example, the perception information is an angle. The first UE receives the SSBs, and can determine the optimal narrow beam index of the first UE to the base station that transmits the SSB according to the perception information corresponding to each SSB, which can be referred to as the second optimal narrow beam index. In some systems, multiple second sensing nodes, such as base stations, can be included, and the first UE can determine the optimal narrow beam index of the first UE to each base station corresponding to each SSB transmitted by the base station. The embodiments of the present application take the scenario of one base station provided by Fig. 1, Fig. 2a or Fig. 2b as an example for illustration, but are not limited thereto. In other multi-base station scenarios, the signal interaction between the base stations and the UE can refer to the present example, which will not be expanded here.

[0105] For example, the UE can perform angle estimation according to the SSBs transmitted by the base station, and the angle estimation can also be determined based on the azimuth angle of the base station perceived by the first UE to determine the optimal narrow beam index of the first UE to the base station. For example, the first UE knows the direction of its beam, and can obtain the received energy of the current direction by an FFT compression algorithm or the like, and then select the beam index with the strongest received energy as the optimal narrow beam index. Further, the method for the first UE to determine the optimal narrow beam index can also refer to various examples of the way in which the base station determines the optimal narrow beam index for the UE in S103, which will not be illustrated one by one here.

[0106] In a possible implementation, as shown in FIG. 6, the method further includes S203 based on FIG. 5.

[0107] S203, the first sensing node uses the second beam to send a third signal to the second sensing node.

[0108] The second beam is determined according to the second optimal narrow beam index, and the third signal is used for access attempt in the PRACH. For example, the first UE can determine the direction of the third beam according to the second optimal narrow beam index of the corresponding base station, and send a third signal through the third beam, such as MSG 1 (message 1), for access attempt in the PRACH.

[0109] In a possible implementation, as in the P2 process, the first UE needs to indicate information of the channel between the first UE and the base station, etc., and can send a signal to the base station through the third beam, such as the first UE sending a report to the base station using the third beam, the report being used to indicate information of the channel between the first UE and the base station, such as the first UE sending the report to enable the base station to obtain the channel characteristics based on the report, and then perform resource configuration.

[0110] In a possible implementation, as in the P3 process, the first UE can also use the third beam for uplink communication, etc.

[0111] The beam management method provided by the embodiments of the present application can determine the second optimal narrow beam index of the first UE through sensing information, and perform access attempt in the PRACH through sending a third signal only once in the P1 process, and in the subsequent P2 and P3 processes, the first UE can send subsequent required information such as a report using the second optimal narrow beam index, to realize the complete process of communication between the first UE and the base station. In this way, the number of beam scanning of the first UE is reduced, and the effects of reducing resource overhead and reducing time delay are achieved.

[0112] FIG. 7 is a flow diagram of another beam management method provided by the embodiments of the present application, which is performed by a first device and a second device. The first device can be a second sensing node, such as a base station or a device in a base station, and the second device can be a first sensing node, such as a UE or a device in a UE. FIG. 7 takes the base station as the first device and the first UE as the second device as an example for illustration, but the present application is not limited thereto. The method provided by FIG. 7 can be applied in various systems as shown in FIG. 1, FIG. 2a or FIG. 2b. As shown in FIG. 7, the method includes S301-S304.

[0113] S301. The base station periodically adopts different pointing beams to pollingly transmit SSBs.

[0114] The implementation of S301 can refer to the example of S101, which is not repeated here.

[0115] S302. The first UE receives at least one SSB, and determines a second optimal narrow beam index of the first UE to the base station according to the obtained sensing information corresponding to each SSB.

[0116] The base station broadcasts the SSBs, and at least one UE in the system can receive the SSBs. The present example takes the first UE in the at least one UE as an example for illustration. The implementation of S302 can refer to the examples of S201 and S202, which are not repeated here.

[0117] S303. The base station obtains sensing information through the SSBs transmitted by each pointing beam, and determines an optimal narrow beam index of at least one UE receiving the SSBs based on the sensing information.

[0118] For example, the base station determines the optimal narrow beam index of the first UE receiving the SSBs to be the first optimal narrow beam index through angle estimation. The implementation of the base station determining the optimal narrow beam index for each UE can refer to the example of S103, which is not repeated here.

[0119] There is no sequence relationship between S302 and S303.

[0120] Referring to FIG. 4, during the P1 process, the base station and the first UE also exist uplink data or downlink data transmission. For example, the first UE can also perform access attempt on the PRACH, i.e., S304 is performed.

[0121] S304. The first UE uses the second beam to transmit a third signal to the base station.

[0122] The implementation of S304 can refer to the example of S203, which is not repeated here.

[0123] The beam management method provided in the embodiments of the present application can realize one-time beam scanning of the base station in the P1 process, i.e., the initial access stage of the UE, and determine the optimal narrow beam index of each UE (for example, the optimal narrow beam index of the first UE is the first optimal narrow beam index). The UE performs one-time beam scanning, and can determine the optimal narrow beam index of the corresponding base station (for example, the optimal narrow beam index of the base station corresponding to the currently transmitted SSB is the second optimal narrow beam index). In the P1 process, the beam management method provided in the embodiments of the present application can reduce the number of times of beam scanning of the base station, and further reduce resource consumption and time delay.

[0124] FIG. 8 is a flowchart of another beam management method provided in the embodiments of the present application, which is executed by a first device and a second device. The first device can be a second sensing node, such as a base station or a device in the base station, and the second device can be a first sensing node, such as a UE or a device in the UE. FIG. 8 takes the base station as the first device and the first UE as the second device as an example for illustration, but is not limited thereto. The method provided in FIG. 8 can be applied in various systems as shown in FIG. 1, FIG. 2a or FIG. 2b. As shown in FIG. 8, the method includes S305 to S307.

[0125] In a possible implementation, S305 to S307 can be executed after S304 based on the beam management method provided in FIG. 7. Referring to FIG. 9, in the P2 process, the base station no longer performs beam scanning, and transmits the first signal through the first beam.

[0126] In S305, the base station can transmit the first signal to the first UE through the first beam once.

[0127] For example, the first signal can be CSI-RS for BM. That is, in the P2 process, the base station no longer performs beam scanning, and determines the beam based on the optimal narrow beam index determined in the P1 stage, and interacts with the corresponding UE through the beam. For example, the base station determines the first beam based on the first optimal narrow beam index for the first UE, and transmits the CSI-RS for BM information through the first beam, and transmits the information only once.

[0128] In the case that the UE accesses successfully and the base station transmits the CSI-RS for BM signal for beam training, if each UE receives only one copy of the signal for beam training, i.e., CSI-RS for BM, it can be indicated that the method provided in the embodiments of the present application is used, i.e., the base station determines the optimal narrow beam index of each UE first, and transmits the CSI-RS for BM to the corresponding UE through the beam determined based on the optimal narrow beam index, and the corresponding UE also receives the CSI-RS for BM only once.

[0129] Further, in the embodiments of the present application, the CSI-RS for BM signal transmitted by the base station can be used for channel characteristic acquisition, thereby realizing modulation, coding, beamforming and other tasks without multiple beam scanning and signal transmission for beam training or beam management of the optimal narrow beam index.

[0130] For example, the first beam is a narrow beam. In the embodiments of the present application, the optimal narrow beam index of each UE can be determined in the P1 stage of the base station and the UE, for example, the first optimal narrow beam index of the first UE is determined, and in the subsequent P2, the first signal is transmitted to the first UE by using the first beam corresponding to the first optimal narrow beam index, without the need to re-scan to determine the optimal beam index. Such a beam management method does not need to determine the optimal beam index of a wide beam in the P1 process, and then determine the optimal beam index of a narrow beam by multiple scanning in the P2, thereby reducing the number of scanning.

[0131] S306, the first UE uses the third beam to transmit a report to the base station, and the report is used to indicate the information of the channel between the base station and the first UE.

[0132] For example, the report transmitted by the UE includes at least one of channel quality information (CQI), a precoding matrix indicator (PMI), a CSI-RS resource indicator (CRI), an SSB resource indicator (SSB resource indicator), a layer indicator (LI), and a Layer-1 Reference Signal Received Power (L1-RSRP) signal, which is used to acquire channel information and determine various resource configurations.

[0133] For example, the second beam is a narrow beam.

[0134] S307, the base station receives the report transmitted by the first UE once.

[0135] In the method provided by the embodiments of the present application, the base station and the UE have determined the optimal narrow beam index and respectively determined the beam of the transmitted signal according to the optimal narrow beam index, but the base station still needs to transmit a first signal once and receive a report transmitted by the UE once, which is used to acquire channel characteristics and then perform resource configuration. In the P2 process, the base station only needs to transmit a CSI-RS for BM signal once, without the need for further beam scanning and multiple transmissions, thereby reducing the overhead and time delay.

[0136] Fig. 10 is a flow diagram of another beam management method provided by the embodiments of the present application, which is performed by a first device and a second device. The first device can be a first sensing node, such as a base station or a device in a base station, and the second device can be a second sensing node, such as a UE or a device in a UE. Fig. 10 illustrates the method by taking an example in which the first device is a base station and the second device is a first UE, but the present application is not limited thereto. The method provided by Fig. 10 can be applied in various systems, such as the systems shown in Figs. 1, 2a or 2b. As shown in Fig. 10, the method includes S308 and S309.

[0137] In a possible implementation, S308 and S309 can be performed after S307 based on the beam management method provided by Fig. 8. Referring to Fig. 11, in the P3 process, the base station no longer performs beam sweeping and transmits the second signal through the first beam.

[0138] In S308, the base station can transmit the second signal to the first UE through the first beam.

[0139] For example, the second signal can be an Rx QCL. That is, in the P3 process, the base station no longer performs beam sweeping, determines the beam based on the first optimal narrow beam index determined in the P1 stage, and interacts with the corresponding UE through the beam. For example, the base station determines the first beam based on the first optimal narrow beam index for the first UE, and transmits the Rx QCL through the first beam in the downlink, and only once.

[0140] Further, in the embodiments of the present application, the Rx QCL signal transmitted by the base station to the first UE can be used to obtain the channel information when the first UE uses the second optimal narrow beam. The Rx QCL includes at least one of multiple information, such as Doppler shift, spread, delay, delay spread, spatial domain Rx parameter, etc.

[0141] In S309, the first UE receives the second signal.

[0142] For example, the first UE can receive the Rx QCL once. If there is a receiving error or the like, the base station can retransmit it once. For the first UE, it receives the Rx QCL once.

[0143] Optionally, the method further includes that the first UE performs uplink communication through the second beam.

[0144] In the method provided in the embodiments of the present application, the base station and the UE have both determined the optimal narrow beam index, and have respectively determined the beam of the transmitted signal according to the optimal narrow beam index, but the base station still needs to send a second signal to each accessed UE once, for obtaining the channel information of each UE when the optimal narrow beam is used, and then performing resource configuration. In the P3 process, the base station only needs to send the Rx QCL signal once, without performing beam scanning and sending multiple times in order to help the UE determine the optimal narrow beam, thereby reducing the beam scanning of the UE in the P3 process, and reducing the number of times of sending the Rx QCL by the base station, and further reducing the resource overhead and the time delay.

[0145] FIG. 12 is a flowchart of another beam management method provided in the embodiments of the present application, which is executed by a first device and a second device. The first device can be a second sensing node, such as a base station or a device in the base station, and the second device can be a first sensing node, such as a UE or a device in the UE, etc. FIG. 12 takes the base station as the first device and the first UE as the second device as an example for illustration, but is not limited thereto. The method provided in FIG. 12 can be applied in various systems such as FIG. 1, FIG. 2a or FIG. 2b. As shown in FIG. 12, the method includes S301 to S309 provided in the above examples.

[0146] Since the beam index is ultimately determined by the positions of the base station and the UE regardless of the channel state, the embodiments of the present application effectively utilize the sensing information, determine the direction of the beam of the base station to each UE by determining the positions of the UEs by the base station, and correspondingly obtain the optimal narrow beam index of the base station to each UE. Compared with the base station without sensing capability (i.e., without fully utilizing the potential sensing capability of future devices (such as base stations, terminals, satellites, routers, etc.), thereby completely relying on information interaction to realize beam training, beam alignment, beam tracking, beam maintenance, etc.), the base station can only try different beam pairs (i.e., the beam of the base station to the UE, and the beam of the UE to the base station) by beam scanning, observe which beam pair is optimal, and needs to scan the beam multiple times. The method provided in the embodiments of the present application determines the direction of the beam from the sensing of the positions of the UEs by the base station, obtains the channel characteristics, retains the information interaction required in the communication process, and reduces the number of interactions, thereby reducing the overhead and the time delay. The UE can also reduce the overhead and the time delay by analogy with the base station.

[0147] In a possible implementation manner, in the communication process, the beam may be misaligned, and the optimal beam pair needs to be found again, which belongs to the beam maintenance and link interruption reconstruction step (after P1 to P3). When these situations occur, the process of P1 to P3 can be re-executed to find the optimal narrow beam index again, and iteration can be completed, according to the examples in the embodiments of the present application.

[0148] The beam management method provided by the embodiments of the present application can utilize the sensing information obtained by the sensing result to complete multi-beam alignment and multi-beam cooperative management, and realize the reduction of scanning rounds, the reduction of overhead and the reduction of time delay on the basis of ensuring the completion of necessary communication information interaction between various sensing nodes (i.e. base stations and UEs).

[0149] FIG. 13 is a structural schematic diagram of a second sensing node or an apparatus in the second sensing node according to an embodiment of the present application. As shown in FIG. 13, the second sensing node 30 or the apparatus 30 in the second sensing node includes a transceiver module 301, a sensing module 302 and a processing module 303.

[0150] The transceiver module 301 is configured to broadcast access information multiple times, and the access information transmitted each time corresponds to a different pointed beam.

[0151] The sensing module 302 is configured to obtain sensing information through the access information transmitted by each pointed beam.

[0152] The processing module 303 is configured to determine an optimal narrow beam index of at least one sensing node receiving the access information based on the sensing information.

[0153] In a possible implementation, the at least one sensing node includes the first sensing node, the first optimal narrow beam index is an optimal narrow beam index of the first sensing node by the second sensing node, and the transceiver module 301 is further configured to transmit a first signal to the first sensing node once using a first beam, the first beam is determined according to the first optimal narrow beam index, and the first signal is a downlink channel state information reference signal for beam management.

[0154] In a possible implementation, the transceiver module 301 is further configured to transmit a second signal to the first sensing node once using the first beam, and the second signal is used to obtain channel information using the first beam.

[0155] In a possible implementation, the sensing information is an angle.

[0156] It should be understood that the modules shown in FIG. 13 are merely examples, and each module can perform its operation according to the method part of the embodiments of the present application or a variation of the operation thereof. In the examples provided by the embodiments of the present application, other operations can also be performed, and the examples of the embodiments of the present application are not limited. Optionally, the second sensing node 30 or the apparatus 30 of the second sensing node can perform the above operations according to the example of FIG. 13, including the transceiver module 301, the sensing module 302, and the processing module 303, or perform the above operations according to other logical divisions, and the examples of the embodiments of the present application are not limited. For example, the second sensing node 30 can include a transceiver module and a processing module, and the sensing function thereof can be multiplexed on the processing module to be implemented, or multiplexed on other modules or components of the second sensing node 30 to be implemented, such as multiplexed on a camera to implement sensing, etc.

[0157] FIG. 14 is a structural schematic diagram of a first sensing node or an apparatus in the first sensing node according to an embodiment of the present application. As shown in FIG. 14, the first sensing node 40 or the apparatus 40 of the first sensing node includes a transceiver module 401, a sensing module 402, and a processing module 403.

[0158] The transceiver module 401 is configured to receive at least one access information, the access information being sent by a second sensing node.

[0159] The sensing module 402 is configured to determine a second optimal narrow beam index of the first sensing node to the second sensing node according to the obtained sensing information corresponding to each of the access information.

[0160] In a possible implementation, the transceiver module 401 is further configured to send a third signal to the second sensing node once using a second beam, the second beam being determined by the processing module 403 according to the second optimal narrow beam index, and the third signal being used for access attempt on a random access channel (PRACH).

[0161] In a possible implementation, the transceiver module 401 is further configured to send a report to the second sensing node using a second beam, the report being used to indicate channel information between the second sensing node.

[0162] In a possible implementation, the sensing information is an angle.

[0163] It should be understood that the modules shown in FIG. 14 are merely examples, each module can perform its operation according to the method part of the embodiments of the present application, or a variation of the operation thereof. In the examples provided by the embodiments of the present application, other operations can also be performed, which are not limited by the examples of the embodiments of the present application. Optionally, the first sensing node 40 or the device 40 of the first sensing node can perform the above operations according to the examples of FIG. 14, including the transceiver module 401, the sensing module 402 and the processing module 403, or according to other logical divisions, which are not limited by the examples of the embodiments of the present application. For example, the first sensing node 40 can include a transceiver module and a processing module, and the sensing function thereof can be multiplexed on the processing module to be implemented, or multiplexed on other modules or components of the first sensing node 40 to be implemented, such as multiplexed on a camera to implement sensing, etc.

[0164] In the embodiments of the present application, the sensing node or the device in the sensing node provided in FIG. 13 can be applied in the scenarios provided in FIG. 1, FIG. 2a or FIG. 2b, and used as the second sensing node (such as a base station) or a component of the second sensing node (such as a base station) to implement the beam management method provided by the embodiments of the present application. The sensing node or the device in the sensing node provided in FIG. 14 can be applied in the scenarios provided in FIG. 1, FIG. 2a or FIG. 2b, and used as the first sensing node (such as a UE) or a component of the first sensing node (such as a UE) to implement the beam management method provided by the embodiments of the present application.

[0165] In addition, as shown in FIG. 15, FIG. 15 is a structural schematic diagram of a device 50 provided by the embodiments of the present application. The device 50 shown in FIG. 15 includes a transceiver 501 and a processor 502. The device 50 can be used to perform the method S101 to S103 in the above embodiments, or perform S201 and S202, or perform S201 to S203, or perform S301 to S304, or perform S305 to S307, or perform S308 to S309, or perform S301 to S307, or perform S301 to S309. The device 50 corresponds to the second sensing node (such as a base station) exemplified in the method, or the device 50 corresponds to the first sensing node (such as a UE) exemplified in the method.

[0166] It should be noted that the division of each part in the embodiments of the present application is illustrative, and is merely a logical functional division. In actual implementation, another division mode can be used. Each function in the embodiments of the present application can be integrated in one processor, or the transceiver and the processor can exist separately. The integrated device can be realized in the form of hardware, such as a chip, or in the form of a software functional unit. In addition, the sensing function provided in the embodiments of the present application can be implemented in a separate device or unit, or implemented by multiplexing in an existing device or unit.

[0167] Further, the embodiment of the present application further provides a device 60, as shown in FIG. 16, which is a structural schematic diagram of the device 60 provided by the embodiment of the present application. As shown in FIG. 16, the device 60 can include a processor 601, a memory 602 coupled with the processor 601, and a transceiver 603. The transceiver 603 can include a communication interface, an optical module, etc., and is configured to receive a packet or data information, etc. The processor 601 can include a central processing unit (CPU), a network processor (NP), or a combination of the CPU and the NP, and is configured to execute the related steps of the wake-up signal processing in the device exemplified in the above embodiment. The processor can also be an application-specific integrated circuit (ASIC), a programmable logic device (PLD) or a combination thereof. The PLD can be a complex programmable logic device (CPLD), a feld-programmable gate array (FPGA), a generic array logic (GAL) or any combination thereof. The processor 601 can refer to one processor, or can include a plurality of processors. The memory 602 can include a volatile memory such as a random-access memory (RAM); the memory can also include a non-volatile memory such as a read-only memory (ROM), a flash memory, a hard disk drive (HDD) or a solid-state drive (SSD); and the memory 602 can further include a combination of the above-mentioned memories. The memory 602 can refer to one memory, or can include a plurality of memories, and is configured to store program instructions. In an embodiment, the memory 602 stores computer readable instructions, and the computer readable instructions include a plurality of software modules, such as a sending module, a processing module and a receiving module. The processor 601 executes the respective software modules, and can perform corresponding operations according to the instructions of the respective software modules. In the embodiment, the operation performed by one software module is actually the operation performed by the processor 601 according to the instructions of the software module. Alternatively, the processor 601 can also store program codes or instructions for executing the scheme of the embodiment of the present application, and in this case, the processor 601 does not need to read the program codes or instructions from the memory 602.

[0168] The device 60 can be configured to perform the methods in the above embodiments. Specifically, the device 60 can perform the operations performed by the second sensing node (e.g., a base station) in the methods S101-S103, or in the methods S301-S304, or in the methods S305-S307, or in the methods S308-S309, or in the methods S301-S307, or in the methods S301-S309 in the above embodiments. Alternatively, the device 60 can perform the operations performed by the first sensing node (e.g., a UE) in the methods S201 and S202, or in the methods S201-S203, or in the methods S301-S304, or in the methods S305-S307, or in the methods S308-S309, or in the methods S301-S307, or in the methods S301-S309 in the above embodiments.

[0169] Further, the embodiments of the present application also provide a communication device. The communication device comprises a storage medium and a processor connected with the storage medium. The storage medium stores instructions, and the processor is configured to implement some or all of the operations in any of the methods in any of the above embodiments when the instructions are run by the processor.

[0170] The embodiments of the present application also provide a computer readable storage medium, which stores instructions, and the instructions, when run on a processor, implement some or all of the operations in any of the methods in any of the above embodiments.

[0171] The embodiments of the present application also provide a computer program product, which comprises a computer program, and the computer program, when run on a processor, implements some or all of the operations in any of the methods in any of the above embodiments.

[0172] The embodiments of the present application also provide a chip, which comprises an interface circuit and a processor. The interface circuit and the processor are connected, and the processor is configured to cause the chip to perform some or all of the operations in any of the methods in any of the above embodiments.

[0173] The embodiments of the present application also provide a chip system, which comprises a processor and a memory. The memory is coupled with the processor, and is configured to store programs or instructions. The programs or instructions, when executed by the processor, cause the chip system to implement some or all of the operations in any of the methods in any of the above embodiments.

[0174] Optionally, the processor in the chip system can be one or more. The processor can be implemented by hardware or software. When implemented by hardware, the processor can be a logic circuit, an integrated circuit, etc. When implemented by software, the processor can be a general-purpose processor, which is configured to read software codes stored in the memory to implement the operations.

[0175] Optionally, the memory in the chip system can also be one or more. The memory can be integrated with the processor, or can be separately arranged from the processor, and the embodiments of the present application are not limited thereto. Illustratively, the memory can be a non-transient processor, such as a read-only memory (ROM), which can be integrated on the same chip as the processor, or can be separately arranged on different chips. The embodiments of the present application do not make specific limitations on the type of memory and the arrangement of the memory and the processor.

[0176] Illustratively, the chip system can be an FPGA, can be an ASIC, can be a system on chip (SoC), can be a CPU, can be an NP, can be a digital signal processor (DSP), can be a micro controller unit (MCU), can be a programmable logic device (PLD), or can be other integrated chips.

[0177] The embodiments of the present application also provide a system, which includes at least one second sensing node shown in FIG. 13, and at least one first sensing node shown in FIG. 14, and can be applied in the scenarios shown in FIG. 1, FIG. 2a or FIG. 2b, but the present application is not limited thereto.

[0178] The embodiments of the present application also provide a system, which includes one or more of the above-mentioned apparatus, device, computer readable storage medium, computer program product, chip or chip system. The system can be applied in the scenarios shown in FIG. 1, FIG. 2a or FIG. 2b, but the present application is not limited thereto.

[0179] The terms "first", "second", "third", "fourth" and the like in the description and claims of the present application and above-mentioned drawings (if any) are used to distinguish similar objects, and do not necessarily indicate a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments described herein can be implemented in other than the order illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not necessarily limit to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0180] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the system, device and unit described above can refer to the corresponding processes in the foregoing method embodiments, which will not be repeated here.

[0181] In several embodiments provided in the present application, it should be understood that the disclosed system, device and method can be implemented in other ways. For example, the device embodiments described above are merely schematic, for example, the division of units is only a logical business division, and actual implementation can have another division manner, for example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the units shown or discussed can be indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms.

[0182] The units described as separate components can or can not be physically separated, and the components shown as units can or can not be physical units, that is, they can be located in one place, or they can be distributed on a plurality of network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the embodiment.

[0183] In addition, each business unit in each embodiment of the present application can be integrated in one processing unit, or each unit can exist physically separately, or two or more units can be integrated in one unit. The integrated unit can be realized in the form of hardware or in the form of a software unit.

[0184] If the integrated unit is realized in the form of a software unit and sold or used as an independent product, it can be stored in a computer readable storage medium. Based on this understanding, all or part of the technical solutions of the present application can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes a plurality of instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the embodiments of the method of the present application. The foregoing storage medium includes: a U disk, a mobile hard disk, a ROM, a RAM, a Random Access Memory, a magnetic disk or an optical disk, and various program code storage media.

[0185] Those skilled in the art should understand that, in one or more examples described above, the businesses described in the present application can be implemented by hardware, software, firmware or any combination thereof. When implemented by software, the businesses can be stored in a computer readable medium or transmitted as one or more instructions or codes on a computer readable medium. The computer readable medium includes computer storage medium and communication medium, wherein the communication medium includes any medium that facilitates transfer of a computer program from one place to another. The storage medium can be any available medium accessible by a general or special purpose computer.

[0186] The above detailed description of the application serves to further explain the purpose, technical solutions and beneficial effects of the present application. It should be understood that the above is only a specific implementation of the present application.

[0187] The above, the above examples are only to illustrate the technical solutions of the present application, not to limit it; although the present application is described in detail with reference to the foregoing examples, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A beam management method, characterized in that: Comprising: broadcasting access information multiple times, each time of the access information corresponding to a different pointed beam; obtaining sensing information by the access information transmitted through each pointed beam; determining an optimal narrow beam index of at least one sensing node receiving the access information based on the sensing information.

2. The method of claim 1, wherein the at least one sensing node comprises a first sensing node, and a first optimal narrow beam index is an optimal narrow beam index of a second sensing node to the first sensing node, the method further comprises: transmitting a first signal to the first sensing node once using a first beam, the first beam being determined according to the first optimal narrow beam index, and the first signal being a downlink channel state information reference signal for beam management.

3. The method according to claim 1 or 2, characterized in that, the method further comprises: transmitting a second signal to the first sensing node once using the first beam, the second signal being used to obtain channel information using the first beam.

4. The method according to any one of claims 1 to 3, characterized in that, The sensing information is an angle. 5.A method for beam management, characterized in that, Comprising: receiving at least one access information, the access information being transmitted by a second sensing node; determining a second optimal narrow beam index of a first sensing node to the second sensing node according to obtained sensing information corresponding to each of the access information.

6. The method of claim 5, wherein transmitting a third signal to the second sensing node once using a second beam, the second beam being determined according to the second optimal narrow beam index, and the third signal being used for access attempt on a physical random access channel (PRACH).

7. The method according to claim 5 or 6, characterized in that, Further comprising: transmitting a report to the second sensing node once using the second beam, the report being used to indicate channel information between the second sensing node.

8. The method according to any one of claims 5 to 7, characterized in that, The sensing information is an angle.

9. A first apparatus, comprising: The first apparatus comprises a module for performing the method of any one of claims 1 to 4.

10. A second apparatus configured to: The second apparatus comprises a module for performing the method of any one of claims 5 to 8.

11. A communications device, characterized by The communication apparatus comprises a processor and a storage medium, the storage medium storing instructions, when executed by the processor, cause the method of any one of claims 1 to 4 to be implemented, or cause the method of any one of claims 5 to 8 to be implemented.

12. A computer-readable storage medium, characterized in that, The computer-readable storage medium comprises instructions, when executed, cause the method of any one of claims 1 to 4 to be implemented, or cause the method of any one of claims 5 to 8 to be implemented.

13. A computer program product, characterised in that, The computer program product comprises instructions, when executed, cause the method of any one of claims 1 to 4 to be implemented, or cause the method of any one of claims 5 to 8 to be implemented.

Images