Beam failure recovery method and related device

Abstract

The invention provides a beam failure recovery method and a related device, and the method comprises the steps: detecting a beam failure event, and determining a first beam group from alternative beam groups pre-configured by network equipment based on a beam quality measurement result; determining a second beam group from a preset beam range under the condition that a target preset condition is satisfied; and sending a beam recovery request to the network device, the beam recovery request comprising target beam information, and the target beam information comprising a resource index of beams in the first beam group and / or a resource index of beams in the second beam group. And the link recovery performance and timeliness can be ensured.

Description

Technical Field

[0001] The present application belongs to the field of communication technology, and specifically relates to a beam failure recovery method and related devices. Background Art

[0002] Since analog beams can only send a limited number of shaped beams at the same time, and the beam width is narrow, they can usually only cover a part of the cell. In order to achieve signal coverage of the entire cell, it is necessary to adopt a transmission method of joint scanning of multiple beams in the time domain to achieve complete coverage of the cell. For unicast transmission between the base station and the UE, the maximum link gain can be obtained when the transmit and receive beams between the base station and the UE are aligned. The process of aligning the transmit and receive beams of the base station and the UE is called beam management. In some scenarios, due to changes in the environment, the originally established beam pair is suddenly blocked, and the network and the terminal do not have enough time to adjust the beam. In order to deal with such situations, the NR standard defines a set of processes for handling such beam failures, also known as beam failure recovery (BFR). However, since the beam resources configured by the base station for the terminal are limited, it may be difficult for the terminal to find a suitable new beam in the configured resources when performing beam failure recovery, so that the subsequent beam can only be randomly selected for recovery, affecting the performance and timeliness of link recovery. Summary of the invention

[0003] The embodiments of the present application provide a beam failure recovery method and related devices to ensure the performance and timeliness of link recovery.

[0004] In a first aspect, an embodiment of the present application provides a beam failure recovery method, including:

[0005] A beam failure event is detected, and a first beam group is determined from candidate beam groups pre-configured by the network device based on a beam quality measurement result;

[0006] When a target preset condition is met, determining a second beam group from a preset beam range;

[0007] A beam restoration request is sent to the network device, wherein the beam restoration request includes target beam information, and the target beam information includes a resource index of a beam in the first beam group and / or a resource index of a beam in the second beam group.

[0008] In a second aspect, an embodiment of the present application provides a beam failure recovery method, including:

[0009] Acquire a beam restoration request from a terminal, where the beam restoration request includes target beam information, where the target beam information includes a resource index of a beam in a first beam group and / or a resource index of a beam in a second beam group, where the beams in the first beam group are beams in a candidate beam group pre-configured by the network device and associated with a beam quality measurement result, and where the beams in the second beam group are beams determined from a preset beam range when a target preset condition is met;

[0010] A beam recovery response is sent to the terminal.

[0011] In a third aspect, an embodiment of the present application provides a beam failure recovery device, including:

[0012] A first acquisition unit, configured to detect a beam failure event and determine a first beam group from candidate beam groups pre-configured by the network device based on a beam quality measurement result;

[0013] A second acquisition unit is used to determine a second beam group from a preset beam range when a target preset condition is met;

[0014] A sending unit is used to send a beam recovery request to the network device, wherein the beam recovery request includes target beam information, and the target beam information includes a resource index of the beam in the first beam group and / or a resource index of the beam in the second beam group.

[0015] In a fourth aspect, an embodiment of the present application provides a beam failure recovery device, including:

[0016] an acquisition unit, configured to acquire a beam restoration request from a terminal, wherein the beam restoration request includes target beam information, wherein the target beam information includes a resource index of a beam in a first beam group and / or a resource index of a beam in a second beam group, wherein the beams in the first beam group are beams in an alternative beam group pre-configured by the network device and associated with a beam quality measurement result, and wherein the beams in the second beam group are beams determined from a preset beam range when a target preset condition is met;

[0017] A sending unit is used to send a beam recovery response to the terminal.

[0018] In a fifth aspect, an embodiment of the present application provides a terminal, comprising a processor, a memory, a communication interface, and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the processor, and the program includes instructions for executing the steps of any method in the first aspect of the embodiment of the present application.

[0019] In a sixth aspect, an embodiment of the present application provides a network device, comprising a processor, a memory, a communication interface, and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the processor, and the program includes instructions for executing the steps of any method in the second aspect of the embodiment of the present application.

[0020] In a seventh aspect, an embodiment of the present application provides a computer program, wherein the computer program is operable to cause a computer to execute some or all of the steps described in any method of the first aspect of the embodiment of the present application. The computer program may be a software installation package.

[0021] In an eighth aspect, an embodiment of the present application provides a chip, comprising a module for detecting a beam failure event and obtaining a first beam group from an alternative beam group pre-configured by a network device based on a beam quality measurement result; and a module for determining a second beam group from a preset beam range when a target preset condition is met; and a module for sending a beam recovery request to the network device, the beam recovery request including target beam information, the target beam information including a resource index of a beam in the first beam group and / or a resource index of a beam in the second beam group.

[0022] In the ninth aspect, an embodiment of the application provides a chip, comprising a module for obtaining a beam recovery request from a terminal, the beam recovery request comprising target beam information, the target beam information comprising a resource index of a beam in a first beam group and / or a resource index of a beam in a second beam group, the beams in the first beam group are beams in an alternative beam group pre-configured by the network device associated with a beam quality measurement result, and the beams in the second beam group are beams determined from a preset beam range when a target preset condition is met; and a module for sending a beam recovery response to the terminal.

[0023] In the tenth aspect, an embodiment of the present application provides a chip module, including the chip described in the eighth aspect or the ninth aspect of the embodiment of the present application.

[0024] It can be seen that in the embodiment of the present application, when the terminal detects a beam failure event, it first determines the first beam group from the alternative beam groups pre-configured by the network device based on the beam quality measurement result, and then determines the second beam group from the preset beam range when the target preset condition is met, and finally sends a beam recovery request to the network device, wherein the beam recovery request includes target beam information, and the target beam information includes the resource index of the beam in the first beam group and / or the resource index of the beam in the second beam group. In this way, when the terminal is performing beam failure recovery, it can determine the target beam from the resource group pre-configured by the network device, and can also select the target beam by beam prediction when the target condition is met, so as to ensure the performance and timeliness of link recovery. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1a It is a network system architecture diagram provided by an embodiment of the present application;

[0027] Figure 1b It is a structural diagram of a network device provided in an embodiment of the present application;

[0028] Figure 1c is a schematic diagram of the structure of a terminal provided in an embodiment of the present application;

[0029] Figure 2a It is a flowchart of a beam failure recovery method provided in an embodiment of the present application;

[0030] Figure 2b It is a BFR MAC CE thumbnail provided in an embodiment of the present application;

[0031] Figure 3 It is a block diagram of the functional units of a beam failure recovery device provided in an embodiment of the present application;

[0032] Figure 4 It is a block diagram of functional units of another beam failure recovery device provided in an embodiment of the present application;

[0033] Figure 5 It is a block diagram of functional units of another beam failure recovery device provided in an embodiment of the present application;

[0034] Figure 6It is a block diagram of the functional units of another beam failure recovery device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0035] In order to enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] The terms "first", "second", etc. in the specification and claims of this application and the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally includes steps or units that are not listed, or optionally includes other steps or units inherent to these processes, methods, products or devices.

[0037] Reference to "embodiment" herein means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present application. The appearance of this phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments. In the embodiments of the present application, the terms "system" and "network" are often used interchangeably, but those skilled in the art can understand their meanings.

[0038] First, the technical contents involved in the embodiments of the present application are explained to facilitate understanding by those skilled in the art.

[0039] Beam failure recovery includes the following steps:

[0040] Beam-failure detection (BFD), the terminal detects that a beam failure has occurred. Each time the measured layer 1 reference signal received power (L1-RSRP) is lower than a configured threshold, it is called a beam-failure instance. When the number of consecutive beam-failure instances exceeds a configured threshold, the terminal considers that a beam failure has been detected and triggers the beam-failure recovery process.

[0041] Candidate beam identification (NBI): The terminal attempts to discover a new beam, or a new beam pair that can restore the connection. The terminal selects a suitable beam from the candidate beams by measuring the L1-RSRP of the reference signal. If the L1-RSRP exceeds a configured threshold, the terminal will consider that the beam can be used to restore the connection.

[0042] Recovery-request transmission: The terminal sends a beam recovery request to the network. If a beam failure is detected and a new candidate beam pair has been found, the terminal will execute a beam recovery request. The purpose of the recovery request is to inform the network that a beam failure has been detected. The recovery request may also contain information about the alternative beams that were interrupted.

[0043] The network responds to the beam restoration request.

[0044] In the existing protocol, alternative beam identification is the first step in beam failure recovery. The terminal will try its best to find a new beam pair to restore the connection. However, since the base station configures limited beam resources for the terminal, it may be difficult for the terminal to find a suitable new beam in the configured resources when performing beam failure recovery. As a result, the terminal can only randomly select beams for recovery, affecting the performance and timeliness of link recovery.

[0045] In order to solve the above problems, an embodiment of the present application provides a beam failure recovery method and related devices, and the embodiment of the present application is described in detail in conjunction with the accompanying drawings.

[0046] See also Figure 1a , Figure 1a This is a network system architecture diagram provided by an embodiment of the present application. Figure 1a As shown, the network system includes a network device 120 and a terminal 110. The terminal 110 is used to initiate a beam failure recovery process when a beam failure is detected, and can also use an AI prediction model to perform beam prediction when the target condition is met. The network device 120 is used to respond to the beam recovery request after receiving the beam recovery request from the terminal, so that the terminal completes the beam failure recovery.

[0047] In the embodiment of the present application, the terminal 110 is a device with wireless transceiver functions. It can be called user equipment (UE), terminal equipment, terminal equipment, mobile station (MS), mobile terminal equipment (MT), access terminal equipment, vehicle-mounted terminal equipment, industrial control terminal equipment, UE unit, UE station, mobile station, remote station, remote terminal equipment, mobile equipment, UE terminal equipment, wireless communication equipment, UE agent or UE device, etc. The user equipment can be fixed or mobile. It should be noted that the terminal equipment can support at least one wireless communication technology, such as LTE, new radio (NR), wideband code division multiple access (WCDMA), etc. For example, the electronic device may be a mobile phone, a tablet computer (pad), a desktop computer, a laptop computer, an all-in-one computer, a vehicle-mounted terminal device, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self driving, a wireless terminal device in remote medical surgery, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, a wireless terminal device in a smart home, a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a wearable device, a terminal device in a future mobile communication network, or a terminal device in a future evolved public mobile land network (PLMN), etc. In some embodiments of the present application, the terminal device may also be a device with transceiver functions, such as a chip system, wherein the chip system may include a chip and may also include other discrete devices.

[0048] In the embodiment of the present application, the network device is a device that provides wireless communication functions for user equipment, and can also be referred to as access network equipment, access network network element, radio access network (RAN) equipment, etc. Among them, the network device can support at least one wireless communication technology, such as LTE, NR, WCDMA, etc. For example, the access network device includes but is not limited to: the next generation base station (generation nodeB, gNB) in the fifth generation mobile communication system (5th-generation, 5G), evolved node B (evolved node B, eNB), radio network controller (radio network controller, RNC), node B (node ​​B, NB), base station controller (base station controller, BSC), base transceiver station (base transceiver station, BTS), home base station (for example, home evolved node B, or home node B, HNB), baseband unit (baseband unit, BBU), transmitting and receiving point (transmitting and receiving point, TRP), transmitting point (transmitting point, TP), mobile switching center, etc. The network device may also be a wireless controller, a centralized unit (CU), and / or a distributed unit (DU) in a cloud radio access network (CRAN) scenario, or the network device may be a relay station, an access point, a vehicle-mounted device, a terminal device, a wearable device, and an access network device in future mobile communications or an access network device in a future evolved PLMN. In some embodiments, the network device may also be a device having a wireless communication function for a user device, such as a chip system. For example, the chip system may include a chip and may also include other discrete devices.

[0049] like Figure 1b The structural diagram of the network device 120 shown in the figure includes a processor 210, a memory 220, a communication interface 230, and one or more programs 221, wherein the one or more programs 221 are stored in the memory 220 and are configured to be executed by the processor 210, and the program 221 includes operations performed by the device on the network side in the method described in the method embodiment of the present application.

[0050] like Figure 1cThe structural diagram of the terminal 110 shown in the figure includes a processor 310, a memory 320, a communication interface 330, and one or more programs 321, wherein the one or more programs 321 are stored in the memory 320 and are configured to be executed by the processor 310, and the program 321 includes a program for executing the operations performed by the device on the terminal side in the method described in the method embodiment of the present application.

[0051] See also Figure 2a , Figure 2a FIG. 1 is a flow chart of a beam failure recovery method provided in an embodiment of the present application. Figure 2a As shown, the beam failure recovery method includes the following steps.

[0052] Step 201: The terminal detects a beam failure event and determines a first beam group from candidate beam groups pre-configured by a network device based on a beam quality measurement result.

[0053] Among them, the network device will pre-configure a resource group for the terminal, which includes a group of channel state information reference signals (CSI-RS) or a group of synchronization signal blocks (SSB). Each of these reference signals corresponds to a specific downlink beam, so in essence this resource group corresponds to a group of alternative beams. When the terminal performs beam failure recovery, it will measure the quality of the beams in the alternative beam group to select the first beam group. The number of beams in the first beam group can include one, more or zero.

[0054] In a possible example, the beam quality in the first beam group is greater than or equal to a first threshold.

[0055] Among them, the terminal can measure the beam quality of the M beams in the alternative beam group, and if the beam quality is greater than or equal to the first threshold, the beam is added to the first beam group. Optionally, the terminal selects one or more beams with the best beam quality as the beams in the first beam group according to the beam measurement result. The maximum number of beams in the first beam group can also be determined in advance. If the number of beams in the first beam group reaches the maximum value, the terminal stops the beam measurement. The M can refer to the number of all beams in the alternative beam group, or it can be a fixed value. If the quality of all beams in the alternative beam group is less than the first threshold, the first beam group is empty, that is, the first beam group does not include beams.

[0056] Beam quality can be measured by parameters such as credibility, reference signal receiving quality (RSRQ), signal-noise ratio (SNR), signal to interference plus noise ratio (SINR), and block error rate (BLER).

[0057] Step 202: When a target preset condition is met, the terminal determines a second beam group from a preset beam range.

[0058] Among them, the terminal can determine the second beam group from the preset beam range by means of beam quality prediction, and the prediction method includes the terminal predicting the beam quality within the preset beam range through an artificial intelligence AI prediction model. The preset beam range can be a predictable range pre-configured by the network device, or it can be a predictable beam range autonomously determined by the AI ​​prediction model. When the AI ​​prediction model autonomously determines the predicted beam range, it can be determined according to the current environment of the terminal.

[0059] The beams within the preset beam range may not overlap with the beams in the alternative beam group, or the preset beam range may include some or all of the beams in the alternative beam group. The number of beams in the second beam group may include one or more. That is to say, the beams in the second beam group may be the top N beams ranked by beam quality after predicting the beam quality in the preset beam range, or the N beams whose beam quality meets the conditions, or the beams whose all beam qualities meet the conditions. Or if none of the measured beam qualities meet the conditions, the number of beams in the second beam group is 0. The satisfaction condition may mean that the beam quality is greater than or equal to a preset threshold, and the preset threshold may be the following two thresholds, or may be different from the second threshold. That is, the beam quality in the second beam group may be greater than or equal to the second threshold.

[0060] In a possible example, the target preset condition includes a first preset condition and / or a second preset condition, the first preset condition is associated with the terminal, and the second preset condition is associated with the network device.

[0061] Among them, when the target preset condition includes the first preset condition, if the first preset condition is met, the terminal determines the second beam group from the preset beam range, that is, the terminal obtains the second beam group from the preset beam range based on the AI ​​prediction model. When the target preset condition includes the second preset condition, if the second preset condition is met, the terminal determines the second beam group from the preset beam range, that is, the terminal obtains the second beam group from the preset beam range based on the AI ​​prediction model. When the target preset condition includes both the first preset condition and the second preset condition, the first preset condition and the second preset condition need to be met at the same time before the terminal determines the second beam group from the preset beam range.

[0062] Since the first preset condition is associated with the terminal and the second preset condition is associated with the network device, when the terminal performs beam failure recovery, beam prediction can be triggered by the terminal, or by the network device, or by the terminal and the network device at the same time.

[0063] It can be seen that in this example, whether the terminal performs beam prediction can be triggered by a variety of mechanisms, thereby improving the flexibility of the terminal in selecting the beam to be reported.

[0064] In a possible example, the method includes: determining whether the number of beams in the first beam group whose beam quality is greater than or equal to the first threshold is less than a preset value; if so, determining that the first preset condition is satisfied.

[0065] Among them, after triggering the beam failure process, the terminal will first measure the resources in the resource group pre-configured by the network device to obtain the first beam group. Determine whether the first preset condition is met based on the beam quality in the first beam group. The preset value can be 1, that is, as long as the number of beams with beam quality greater than or equal to the first threshold included in the first beam group is 0, that is, there is no beam with beam quality greater than or equal to the first threshold, it can also be considered that the first beam group is empty, then the first preset condition is considered to be met. The preset value can also be set in advance by the terminal or network device, so that when it is determined that the number of beams with beam quality greater than or equal to the first threshold in the first beam group is small, it is considered that the first preset condition is met.

[0066] Optionally, when the target preset condition includes a first preset condition and there is no beam in the first beam group whose beam quality is greater than or equal to the first threshold, the AI ​​prediction model is used to perform beam prediction in the preset beam range to obtain a second beam group. If the first preset condition is not met, the terminal does not use AI prediction, and beam failure recovery is performed according to the original method. The method for obtaining the beam to be reported in the original beam failure recovery method is that the terminal selects a beam from the beams that meet the first threshold condition for beam failure recovery.

[0067] In a possible instance, the network device obtains capability reporting information from the terminal, wherein the capability reporting information is used to indicate whether the terminal supports determining the second beam group; the network device sends indication information to the terminal according to the capability reporting information; the terminal obtains indication information from the network device, wherein the indication information is used to indicate whether the terminal needs to determine the second beam group; and when the indication information indicates that the terminal needs to determine the second beam group, it is determined that the second preset condition is met.

[0068] Among them, the terminal can report its capabilities to the network device in advance, informing the network device whether the terminal has the ability to determine the second beam group from a preset beam range. If the terminal supports it, the network device can send an indication information to the terminal to instruct the terminal to determine the second beam group from a preset range after detecting a beam failure.

[0069] In a specific implementation, the indication information sent by the network device may be used to indicate whether the terminal uses the AI ​​prediction model, so that the terminal can determine the second beam group based on the AI ​​prediction model. In addition to being determined according to the capabilities reported by the terminal, the indication content of the indication information may also be determined based on the historical prediction results of the AI ​​prediction model and / or the current environment of the terminal and / or the beam range included in the alternative beam group. That is, when the network device learns that the terminal has AI prediction capabilities, it can instruct the terminal to use AI prediction, otherwise it instructs not to use the AI ​​prediction model. It may also be that when the network device learns that the terminal has AI prediction capabilities, it evaluates the historical prediction results and determines whether to instruct the use of the AI ​​prediction model based on the evaluation results. It may also be that if the range of the alternative beam group is large enough, even if the terminal has AI prediction capabilities, the network device instructs not to use the AI ​​prediction model.

[0070] It can be seen that when the target preset condition only includes the second preset condition, if the network device instructs the terminal to determine the second beam group, the terminal can perform beam prediction during the beam failure recovery process.

[0071] When the target preset conditions include both the first preset conditions and the second preset conditions, the terminal will determine the second beam group only if the network device's indication information indicates that the terminal needs to determine the second beam group and the number of beams in the first beam group with a beam quality greater than or equal to the first threshold is less than the preset value. This is to use the AI ​​prediction model for beam prediction.

[0072] In a possible example, the network device sends configuration information of the candidate beam group to the terminal: the terminal obtains the configuration information of the candidate beam group from the network device, where the configuration information includes the indication information.

[0073] Among them, when the network device configures the alternative beam group to the terminal, it can introduce a parameter to indicate whether the terminal needs to determine the second beam group, that is, whether the terminal needs to use the AI ​​prediction model.

[0074] Step 203: The terminal sends a beam recovery request to the network device.

[0075] Step 204: The network device sends a beam recovery response to the terminal.

[0076] The beam recovery request includes target beam information, and the target beam information includes a resource index of a beam in the first beam group and / or a resource index of a beam in the second beam group. The target beam information is used by the terminal to perform beam failure recovery, and each resource index corresponds to a beam. The target beam information includes a beam obtained by measuring the quality of beams in the alternative beam group, or includes a beam obtained from a preset beam range, or includes both a measured beam and a beam obtained from a preset beam range.

[0077] In the specific implementation, if the target preset conditions are not met, the terminal will not determine the second beam group from the preset beam range when performing beam failure recovery, that is, the AI ​​prediction model will not be used, and the target beam information will only include the content of the first beam group.

[0078] In a possible example, the method includes: carrying the target beam information through a preset resource, the preset resource includes a first indication field, and the first indication field is used to indicate whether the terminal has determined the second beam group.

[0079] The preset resource may be a medium access control-control element (MAC-CE) or a physical uplink control channel (PUCCH). If the first indication field indicates that the terminal has determined the second beam combination, it means that the terminal has performed beam prediction, that is, the AI ​​prediction model has been used.

[0080] In particular, if the indication information sent by the network device indicates that the terminal does not need to determine the second beam group, the preset resources may not include the first indication field.

[0081] In the specific implementation, when the target beam information is carried by MAC-CE pulling, please refer to Figure 2b As shown, Figure 2bIt is a BFR MAC CE thumbnail provided by an embodiment of the present application. The fields in the BFR MAC CE are defined as follows: SP: This field indicates the cell for beam failure detection for the MAC entity. Ci: This field indicates whether a beam failure occurs in the corresponding cell. The Ci field is set to 1 to indicate that a beam failure is detected, and Ci set to 0 indicates that no beam failure is detected; AC: This field indicates that there is a candidate RS ID (Candidate RS ID) field in this eight-bit byte. If there is a candidate beam, the AC field is set to 1; otherwise it is set to 0. If the AC field is set to 1, there is a candidate RS ID field, and the candidate beam selection index (that is, the target beam index in this scheme) will be reported in the Candidate RS ID. If the AC field is set to 0, there is an R bit; Candidate RSID: This field is set to the index of the candidate SSB or the index of the CSI-RS. R: Reserved bit. At this time, a new field (field) can be introduced in the MAC-CE to indicate whether the terminal uses the AI ​​prediction mode. For example, if the first indication field is 0, it means that the AI ​​prediction model is not used, and if it is 1, it means that the AI ​​prediction model is used.

[0082] In a possible example, the preset resource includes a second indication field, and the second indication field is used to respectively indicate whether each beam corresponding to the target beam information is measured.

[0083] Among them, since the target beam group may contain beams that have not been measured, the second indication domain (field) in the preset resource can be used to determine whether each beam corresponding to the target beam information has been measured. The beams that have not been measured can be beams from the alternative beam group, that is, the terminal has only measured some of the beams in the alternative beam group, or they can be beams determined from the preset beam range.

[0084] In a specific implementation, the preset resource may also include the first indication field and the second indication field at the same time.

[0085] In a possible example, the preset resource includes a third indication field, and the third indication field is used to respectively indicate whether each beam corresponding to the target beam information is a beam in the candidate beam group.

[0086] Among them, if the indication information sent by the network device indicates that the terminal does not need to determine the second beam group, the third indication field may not be included in the preset resources. That is, since the AI ​​prediction model is not used, all beams corresponding to the target beam information belong to the beams in the alternative beam group.

[0087] In a specific implementation, when the terminal measures all beams in the candidate beam group, the third indication field may not be included in the preset resource, that is, the second indication field can be used to simultaneously determine whether each beam is a beam in the candidate beam group. In this case, if the second indication field indicates that the beam is measured, the beam is a beam in the candidate beam group, otherwise, it is a beam determined by the AI ​​prediction model.

[0088] When the terminal measures some beams of the alternative beam group, since the beams in the preset beam range may overlap with the beams in the alternative beam group, the third indication field is required to indicate whether each beam is in the alternative beam group.

[0089] In a specific implementation, the preset resource may also include the second indication field and the third indication field at the same time, or include the first indication field, the second indication field, and the third indication field at the same time.

[0090] In a possible instance, the method further includes: respectively obtaining a first beam quality of each beam in the first beam group and a second beam quality of each beam in the second beam group; determining a target resource index included in the target beam information according to the first beam quality and the second beam quality, the target resource index being a resource index of a beam in the first beam group and / or a resource index of a beam in the second beam group.

[0091] Among them, after obtaining the first beam group and the second beam group, it is necessary to determine which beams to report. At this time, the beams to be reported can be determined according to the measured beam quality and the predicted beam quality respectively. The reported beams can be only measured beams, only predicted beams, or both measured beams and predicted beams.

[0092] In a possible instance, determining the target resource index included in the target beam information based on the first beam quality and the second beam quality includes: in the case where the first beam quality is greater than or equal to a first threshold, determining that the target resource index includes the resource index of the beam in the first beam group.

[0093] The terminal may report only one beam. As long as the measured beam quality is greater than or equal to a first threshold, the terminal reports the resource index in the beam that meets the first threshold.

[0094] Specifically, what is reported may be the resource index of the beam with the best beam quality among the measured beams.

[0095] In a possible example, the target resource index includes K items, where K is a positive integer.

[0096] Among them, multiple new beams can be reported in one cell. When the terminal reports the resource index of the beam, the resource index of the K beams with the best quality among the acquired beams can be reported. These K beams can be beams from both the first beam group and the second beam group, or beams from the first beam group or beams from the second beam group alone.

[0097] In a possible instance, determining the target resource index included in the target beam information based on the first beam quality and the second beam quality includes: when the first beam quality is greater than or equal to a first threshold and the second beam quality is greater than or equal to a second threshold, determining that the target resource index includes the resource index of the beam with the best beam quality in the first beam group and the resource indexes of K-1 beams with the best beam quality in the second beam group.

[0098] It should be noted that the first threshold and the second threshold may be the same value, or may be different from each other. In a specific implementation, the second threshold may be higher than the first threshold.

[0099] In a specific implementation, when the first beam quality is lower than the second beam quality, the best beam in the measured beam and the resource indexes of the K-1 predicted beams can be reported at the same time. The first beam quality is lower than the second beam quality, including: the best beam quality in the first beam group is lower than the best beam quality in the second beam group. Or, the number of beams in the first beam group that have a higher quality than the best beam in the second beam group is less than a preset value. Or, the average beam quality of the first beam group is lower than the average beam quality of the second beam group, etc.

[0100] In a specific implementation, when the first beam quality is equal to the second beam quality, the best beam quality among the measured beams and the resource indexes of the K-1 predicted beams can be reported at the same time. The first beam quality is equal to the second beam quality, including: the best beam quality in the first beam group is equal to the best beam quality in the second beam group.

[0101] In a possible instance, determining the target resource index included in the target beam information based on the first beam quality and the second beam quality includes: when the first beam group is empty and there is a second beam quality greater than or equal to the second threshold, determining that the target resource index includes the resource indexes of the K beams with the best beam qualities in the second beam group.

[0102] Among them, if the first beam group is empty, it means that the measured beam qualities are all less than the first threshold. At this time, if there is at least one beam in the predicted beams whose beam quality is greater than or equal to the second threshold, the resource indexes of the best K beams in the prediction are reported.

[0103] In a specific implementation, the beam quality in the second beam group is greater than the second threshold. At this time, when the first beam group is empty, if the number L of beams included in the second beam group is less than K, the terminal can report the resource indexes of the L beams in the second beam groups.

[0104] It can be seen that in this example, the terminal detects a beam failure event, and first determines the first beam group from the alternative beam groups pre-configured by the network device based on the beam quality measurement result, and then determines the second beam group from the preset beam range when the target preset conditions are met, and finally sends a beam recovery request to the network device, and the beam recovery request includes target beam information, and the target beam information includes the resource index of the beam in the first beam group and / or the resource index of the beam in the second beam group. In this way, when performing beam failure recovery, the terminal can determine the target beam from the resource group pre-configured by the network device, and can also select the target beam by beam prediction when the target conditions are met, which can ensure the performance and timeliness of link recovery.

[0105] The embodiment of the present application provides a beam failure recovery device, which is used to execute the steps executed by the terminal in the above beam failure recovery method. The beam failure recovery device provided by the embodiment of the present application may include units corresponding to the corresponding steps.

[0106] The embodiment of the present application can divide the functional modules of the beam failure recovery device according to the above method. 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. 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.

[0107] In the case of dividing each functional module into corresponding functional modules, such as Figure 3 As shown, Figure 3This is a functional unit composition block diagram of a beam failure recovery device provided by an embodiment of the present application. The beam failure recovery device 30 includes: a first acquisition unit 301, used to detect a beam failure event, and determine a first beam group from an alternative beam group pre-configured by a network device based on a beam quality measurement result; a second acquisition unit 302, used to determine a second beam group from a preset beam range when a target preset condition is met; a sending unit 303, used to send a beam recovery request to the network device, the beam recovery request includes target beam information, and the target beam information includes a resource index of a beam in the first beam group and / or a resource index of a beam in the second beam group.

[0108] In a possible example, the target preset condition includes a first preset condition and / or a second preset condition, the first preset condition is associated with the terminal, and the second preset condition is associated with the network device.

[0109] In a possible example, the beam quality in the first beam group is greater than or equal to a first threshold.

[0110] In a possible example, the beam failure recovery device 30 is further used to: determine whether the number of beams in the first beam group whose beam quality is greater than or equal to the first threshold is less than a preset value; if so, determine that the first preset condition is met.

[0111] In a possible instance, the beam failure recovery device 30 is also used to: obtain indication information from the network device, the indication information being used to indicate whether the terminal needs to determine the second beam group; and determine that the second preset condition is met when the indication information indicates that the terminal needs to determine the second beam group.

[0112] In a possible example, in terms of obtaining indication information from the network device, the beam failure recovery device 30 is further used to: obtain configuration information of the alternative beam group from the network device, wherein the configuration information includes the indication information.

[0113] In a possible instance, the beam failure recovery device 30 is further used to: carry the target beam information through a preset resource, the preset resource includes a first indication field, and the first indication field is used to indicate whether the terminal has determined the second beam group.

[0114] In a possible example, the preset resource includes a second indication field, and the second indication field is used to respectively indicate whether each beam corresponding to the target beam information is measured.

[0115] In a possible example, the preset resource includes a third indication field, and the third indication field is used to respectively indicate whether each beam corresponding to the target beam information is a beam in the candidate beam group.

[0116] In a possible instance, the beam failure recovery device 30 is also used to: respectively obtain the first beam quality of each beam in the first beam group and the second beam quality of each beam in the second beam group; determine the target resource index included in the target beam information according to the first beam quality and the second beam quality, and the target resource index is the resource index of the beam in the first beam group and / or the resource index of the beam in the second beam group.

[0117] In a possible instance, in terms of determining the target resource index included in the target beam information based on the first beam quality and the second beam quality, the beam failure recovery device 30 is further used to: in the event that the first beam quality is greater than or equal to a first threshold, determine that the target resource index includes the resource index of the beam in the first beam group.

[0118] In a possible example, the target resource index includes K items, where K is a positive integer.

[0119] In a possible instance, in terms of determining the target resource index included in the target beam information based on the first beam quality and the second beam quality, the beam failure recovery device 30 is further used to: when the first beam quality is greater than or equal to a first threshold and the second beam quality is greater than or equal to a second threshold, determine that the target resource index includes the resource index of the beam with the best beam quality in the first beam group and the resource indexes of K-1 beams with the best beam quality in the second beam group.

[0120] In a possible instance, in terms of determining the target resource index included in the target beam information based on the first beam quality and the second beam quality, the beam failure recovery device 30 is further used to: when the first beam group is empty and there is a second beam quality greater than or equal to the second threshold, determine that the target resource index includes the resource indexes of the K beams with the best beam qualities in the second beam group.

[0121] Among them, all relevant contents of each step involved in the above method embodiment can be referred to the functional description of the corresponding functional unit, and will not be repeated here. Of course, the beam failure recovery device provided in the embodiment of the present application includes but is not limited to the above units, for example: the beam failure recovery device may also include a storage unit. The storage unit can be used to store the program code and data of the beam failure recovery device.

[0122] In the case of using an integrated unit, a functional unit block diagram of another beam failure recovery device provided by an embodiment of the present application is as follows: Figure 4 As shown. Figure 4 In the embodiment, the beam failure recovery device 30 includes: a processing module 31 and a communication module 32. The processing module 31 is used to control and manage the actions of the beam failure recovery device, for example, the steps performed by the first acquisition unit 301, the second acquisition unit 302 and the sending unit 303, and / or other processes for performing the technology described herein. The communication module 32 is used to support the interaction between the beam failure recovery device and other devices. Figure 4 As shown, the beam failure recovery device 30 may further include a storage module 33, and the storage module 33 is used to store program codes and data of the beam failure recovery device, such as storing the content stored in the above storage unit.

[0123] Among them, the processing module 31 can be a processor or a controller, for example, a central processing unit (CPU), a general processor, a digital signal processor (DSP), an ASIC, an FPGA or other programmable logic device, a transistor logic device, a hardware component or any combination thereof. It can implement or execute various exemplary logic blocks, modules and circuits described in conjunction with the disclosure of this application. The processor can also be a combination that implements a computing function, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and the like. The communication module 32 can be a transceiver, an RF circuit or a communication interface, and the like. The storage module 33 can be a memory.

[0124] All relevant contents of each scenario involved in the above method embodiment can be referred to the functional description of the corresponding functional module, which will not be repeated here. Figure 2a The steps performed by the terminal in the beam failure recovery method shown.

[0125] The embodiment of the present application provides a beam failure recovery device, which is used to execute the steps executed by the network device in the above beam failure recovery method. The beam failure recovery device provided by the embodiment of the present application may include units corresponding to the corresponding steps.

[0126] The embodiment of the present application can divide the functional modules of the beam failure recovery device according to the above method. 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. 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.

[0127] In the case of dividing each functional module into corresponding functional modules, such as Figure 5 As shown, Figure 5 It is a functional unit composition block diagram of another beam failure recovery device provided by an embodiment of the present application. The beam failure recovery device 40 includes: an acquisition unit 401, used to acquire a beam recovery request from a terminal, the beam recovery request includes target beam information, the target beam information includes a resource index of a beam in a first beam group and / or a resource index of a beam in a second beam group, the beams in the first beam group are beams in an alternative beam group pre-configured by the network device associated with a beam quality measurement result, and the beams in the second beam group are beams determined from a preset beam range when a target preset condition is met; a sending unit 402, used to send a beam recovery response to the terminal.

[0128] In a possible instance, the beam failure recovery device 40 is further used to: obtain capability reporting information from the terminal, the capability reporting information being used to indicate whether the terminal supports determining a second beam group; and send indication information to the terminal based on the capability reporting information, the indication information being used to indicate whether the terminal needs to determine a second beam group.

[0129] In a possible example, in terms of sending indication information to the terminal according to the capability reporting information, the beam failure recovery device 40 is further used to: send configuration information of the alternative beam group to the terminal, wherein the configuration information includes the indication information.

[0130] Among them, all relevant contents of each step involved in the above method embodiment can be referred to the functional description of the corresponding functional unit, and will not be repeated here. Of course, the beam failure recovery device provided in the embodiment of the present application includes but is not limited to the above units, for example: the beam failure recovery device may also include a storage unit. The storage unit can be used to store the program code and data of the beam failure recovery device.

[0131] In the case of using an integrated unit, a functional unit block diagram of another beam failure recovery device provided by an embodiment of the present application is as follows: Figure 6 As shown. Figure 6In the embodiment, the beam failure recovery device 40 includes: a processing module 41 and a communication module 42. The processing module 41 is used to control and manage the actions of the beam failure recovery device, for example, the steps performed by the acquisition unit 401 and the sending unit 402, and / or other processes for performing the technology described herein. The communication module 42 is used to support the interaction between the beam failure recovery device and other devices. Figure 6 As shown, the beam failure recovery device 40 may further include a storage module 43, and the storage module 43 is used to store program codes and data of the beam failure recovery device, such as storing the content stored in the above storage unit.

[0132] Among them, the processing module 41 can be a processor or a controller, for example, a central processing unit (CPU), a general processor, a digital signal processor (DSP), an ASIC, an FPGA or other programmable logic device, a transistor logic device, a hardware component or any combination thereof. It can implement or execute various exemplary logic blocks, modules and circuits described in conjunction with the disclosure of this application. The processor can also be a combination that implements a computing function, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and the like. The communication module 42 can be a transceiver, an RF circuit or a communication interface, and the like. The storage module 43 can be a memory.

[0133] All relevant contents of each scenario involved in the above method embodiment can be referred to the functional description of the corresponding functional module, which will not be repeated here. Figure 2a The steps performed by the network device in the beam failure recovery method are shown.

[0134] An embodiment of the present application also provides a chip, wherein the chip includes a processor for calling and running a computer program from a memory, so that a device equipped with the chip executes some or all of the steps described by the terminal in the above method embodiment.

[0135] An embodiment of the present application also provides a chip module, including a transceiver component and a chip, wherein the chip includes a processor for calling and running a computer program from a memory, so that a device equipped with the chip executes some or all of the steps described by the terminal in the above method embodiment.

[0136] An embodiment of the present application also provides a chip, comprising a module for detecting a beam failure event and obtaining a first beam group from an alternative beam group pre-configured by a network device based on a beam quality measurement result; and a module for determining a second beam group from a preset beam range when a target preset condition is met; and a module for sending a beam recovery request to the network device, wherein the beam recovery request includes target beam information, and the target beam information includes a resource index of a beam in the first beam group and / or a resource index of a beam in the second beam group.

[0137] The embodiment of the present application also provides a chip module, including a transceiver component and a chip.

[0138] The chip includes a module for detecting a beam failure event and obtaining a first beam group from an alternative beam group pre-configured by a network device based on a beam quality measurement result; and a module for determining a second beam group from a preset beam range when a target preset condition is met; and a module for sending a beam recovery request to the network device, wherein the beam recovery request includes target beam information, and the target beam information includes a resource index of a beam in the first beam group and / or a resource index of a beam in the second beam group.

[0139] An embodiment of the present application also provides a chip, which includes a module for obtaining a beam recovery request from a terminal, wherein the beam recovery request includes target beam information, and the target beam information includes a resource index of a beam in a first beam group and / or a resource index of a beam in a second beam group, wherein the beams in the first beam group are beams in an alternative beam group pre-configured by the network device and associated with a beam quality measurement result, and the beams in the second beam group are beams determined from a preset beam range when a target preset condition is met; and a module for sending a beam recovery response to the terminal.

[0140] An embodiment of the present application also provides a chip, which includes a module for obtaining a beam recovery request from a terminal, wherein the beam recovery request includes target beam information, and the target beam information includes a resource index of a beam in a first beam group and / or a resource index of a beam in a second beam group, wherein the beams in the first beam group are beams in an alternative beam group pre-configured by the network device and associated with a beam quality measurement result, and the beams in the second beam group are beams determined from a preset beam range when the target meets a preset condition; and a module for sending a beam recovery response to the terminal.

[0141] An embodiment of the present application also provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program for electronic data exchange, wherein the computer program enables a computer to execute part or all of the steps described by the network-side device in the above method embodiment.

[0142] The present application also provides a computer program product, wherein the computer program product includes a computer program, and the computer program is operable to enable a computer to execute some or all of the steps described by the terminal in the above method embodiment. The computer program product can be a software installation package.

[0143] The steps of the method or algorithm described in the embodiment of the present application can be implemented in a hardware manner, or can be implemented by a processor executing software instructions. The software instructions can be composed of corresponding software modules, and the software modules can be stored in a random access memory (Random Access Memory, RAM), a flash memory, a read-only memory (Read Only Memory, ROM), an erasable programmable read-only memory (Erasable Programmable ROM, EPROM), an electrically erasable programmable read-only memory (Electrically EPROM, EEPROM), a register, a hard disk, a mobile hard disk, a read-only compact disk (CD-ROM) or any other form of storage medium known in the art. An exemplary storage medium is coupled to the 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 a component of the processor. The processor and the storage medium can be located in an ASIC. In addition, the ASIC can be located in an access network device, a target network device, or a core network device. Of course, the processor and the storage medium can also be present in an access network device, a target network device, or a core network device as discrete components.

[0144] Those skilled in the art should be aware that in one or more of the above examples, the functions described in the embodiments of the present application can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function described in the embodiments of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions can be transmitted from a website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (Digital Subscriber Line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that includes one or more available media integrations. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a digital video disc (DVD)), or a semiconductor medium (eg, a solid state disk (SSD)).

[0145] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the embodiments of the present application. It should be understood that the above description is only the specific implementation method of the embodiments of the present application and is not intended to limit the protection scope of the embodiments of the present application. Any modifications, equivalent substitutions, improvements, etc. made on the basis of the technical solutions of the embodiments of the present application should be included in the protection scope of the embodiments of the present application.

Claims

1. A beam failure recovery method, characterized in that: include: A beam failure event is detected, and a first beam group is determined from candidate beam groups pre-configured by the network device based on a beam quality measurement result; When a target preset condition is met, determining a second beam group from a preset beam range; A beam restoration request is sent to the network device, wherein the beam restoration request includes target beam information, and the target beam information includes a resource index of a beam in the first beam group and / or a resource index of a beam in the second beam group.

2. The method according to claim 1, characterized in that The target preset condition includes a first preset condition and / or a second preset condition, the first preset condition is associated with the terminal, and the second preset condition is associated with the network device.

3. The method according to claim 2, characterized in that The beam quality in the first beam group is greater than or equal to a first threshold.

4. The method according to claim 3, characterized in that The method comprises: Determining whether the number of beams in the first beam group whose beam quality is greater than or equal to the first threshold is less than a preset value; If so, it is determined that the first preset condition is met.

5. The method according to claim 3, characterized in that: The method comprises: Acquire indication information from the network device, where the indication information is used to indicate whether the terminal needs to determine the second beam group; When the indication information indicates that the terminal needs to determine the second beam group, it is determined that the second preset condition is met.

6. The method according to claim 5, characterized in that The obtaining of indication information from the network device includes: Acquire configuration information of the candidate beam group from the network device, where the configuration information includes the indication information.

7. The method according to any one of claims 1 to 6, characterized in that: The method includes: carrying the target beam information by using preset resources, wherein the preset resources include a first indication field, and the first indication field is used to indicate whether the terminal has determined the second beam group.

8. The method according to any one of claims 1 to 6, characterized in that: The preset resource includes a second indication field, and the second indication field is used to respectively indicate whether each beam corresponding to the target beam information is measured.

9. The method according to any one of claims 1 to 6, characterized in that: The preset resource includes a third indication field, and the third indication field is used to respectively indicate whether each beam corresponding to the target beam information is a beam in the candidate beam group.

10. The method according to any one of claims 1 to 9, characterized in that: The method further comprises: Respectively acquiring a first beam quality of each beam in the first beam group and a second beam quality of each beam in the second beam group; A target resource index included in the target beam information is determined according to the first beam quality and the second beam quality, where the target resource index is a resource index of a beam in the first beam group and / or a resource index of a beam in the second beam group.

11. The method according to claim 10, characterized in that The determining, according to the first beam quality and the second beam quality, a target resource index included in the target beam information comprises: In a case where the first beam quality is greater than or equal to a first threshold, determining that the target resource index includes a resource index of a beam in the first beam group.

12. The method according to claim 10, characterized in that The target resource index includes K, where K is a positive integer.

13. The method according to claim 12, characterized in that The determining, according to the first beam quality and the second beam quality, a target resource index included in the target beam information comprises: When the first beam quality is greater than or equal to a first threshold and the second beam quality is greater than or equal to a second threshold, the target resource index is determined to include the resource index of the beam with the best beam quality in the first beam group and the resource indexes of K-1 beams with the best beam quality in the second beam group.

14. The method according to claim 12, characterized in that The determining, according to the first beam quality and the second beam quality, a target resource index included in the target beam information comprises: When the first beam group is empty and there is a second beam whose quality is greater than or equal to the second threshold, it is determined that the target resource index includes resource indexes of K beams with the best beam qualities in the second beam group.

15. A beam failure recovery method, characterized in that: include: Acquire a beam restoration request from a terminal, where the beam restoration request includes target beam information, where the target beam information includes a resource index of a beam in a first beam group and / or a resource index of a beam in a second beam group, where the beams in the first beam group are beams in a candidate beam group pre-configured by the network device and associated with a beam quality measurement result, and where the beams in the second beam group are beams determined from a preset beam range when a target preset condition is met; A beam recovery response is sent to the terminal.

16. The method according to claim 15, characterized in that The method further comprises: Acquire capability reporting information from the terminal, where the capability reporting information is used to indicate whether the terminal supports determining a second beam group; Send indication information to the terminal according to the capability reporting information, where the indication information is used to indicate whether the terminal needs to determine a second beam group.

17. The method according to claim 16, characterized in that The sending indication information to the terminal according to the capability reporting information includes: Sending configuration information of the candidate beam group to the terminal, where the configuration information includes the indication information.

18. A beam failure recovery device, characterized in that: include: A first acquisition unit, configured to detect a beam failure event and determine a first beam group from candidate beam groups pre-configured by the network device based on a beam quality measurement result; A second acquisition unit is used to determine a second beam group from a preset beam range when a target preset condition is met; A sending unit is used to send a beam recovery request to the network device, wherein the beam recovery request includes target beam information, and the target beam information includes a resource index of the beam in the first beam group and / or a resource index of the beam in the second beam group.

19. A beam failure recovery device, characterized in that: include: an acquisition unit, configured to acquire a beam restoration request from a terminal, wherein the beam restoration request includes target beam information, wherein the target beam information includes a resource index of a beam in a first beam group and / or a resource index of a beam in a second beam group, wherein the beams in the first beam group are beams in an alternative beam group pre-configured by the network device and associated with a beam quality measurement result, and wherein the beams in the second beam group are beams determined from a preset beam range when a target preset condition is met; A sending unit is used to send a beam recovery response to the terminal.

20. A terminal, characterized in that: The method comprises a processor, a memory, and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the processor, and the programs include instructions for executing the steps in the method according to any one of claims 1 to 14.

21. A network device, characterized in that: The method comprises a processor, a memory, and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the processor, and the programs include instructions for executing the steps in the method according to any one of claims 15 to 17.

22. A computer-readable storage medium, characterized in that: A computer program for electronic data exchange is stored, wherein the computer program enables a computer to execute the method according to any one of claims 1 to 17.

23. A chip, characterized in that: The chip includes a module for detecting a beam failure event and acquiring a first beam group from candidate beam groups preconfigured by a network device based on a beam quality measurement result; and a module for determining a second beam group from a preset beam range when a target preset condition is met; And a module for sending a beam recovery request to the network device, wherein the beam recovery request includes target beam information, and the target beam information includes a resource index of a beam in the first beam group and / or a resource index of a beam in the second beam group.

24. A chip module, characterized in that: Including transceiver components and chips, The chip includes a module for detecting a beam failure event and acquiring a first beam group from candidate beam groups preconfigured by a network device based on a beam quality measurement result; and a module for determining a second beam group from a preset beam range when a target preset condition is met; And a module for sending a beam recovery request to the network device, wherein the beam recovery request includes target beam information, and the target beam information includes a resource index of a beam in the first beam group and / or a resource index of a beam in the second beam group.

25. A chip, characterized in that: The chip includes a module for acquiring a beam restoration request from a terminal, wherein the beam restoration request includes target beam information, wherein the target beam information includes a resource index of a beam in a first beam group and / or a resource index of a beam in a second beam group, wherein the beams in the first beam group are beams in a candidate beam group pre-configured by the network device and associated with a beam quality measurement result, and the beams in the second beam group are beams determined from a preset beam range when a target preset condition is met; And a module for sending a beam recovery response to the terminal.

26. A chip module, characterized in that: Including transceiver components and chips, The chip includes a module for acquiring a beam restoration request from a terminal, wherein the beam restoration request includes target beam information, wherein the target beam information includes a resource index of a beam in a first beam group and / or a resource index of a beam in a second beam group, wherein the beams in the first beam group are beams in a candidate beam group preconfigured by the network device and associated with a beam quality measurement result, and the beams in the second beam group are beams determined from a preset beam range when a target meets a preset condition; And a module for sending a beam recovery response to the terminal.

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