Beam failure recovery method, communication device and computer readable storage medium

Abstract

Provided are a beam failure recovery method, a communication device and a computer readable storage medium, the method comprising: executing a joint BFR for reference frequency information and target frequency information, the target frequency information and the reference frequency information belonging to the same frequency information set, and the target frequency information and the reference frequency information belonging to the same frequency information set; the target frequency information and the reference frequency information have a first association relationship; wherein the joint BFR for the reference frequency information and the target frequency information comprises: a beam failure event of the target frequency information is determined according to the beam failure event of the reference frequency information, and / or a target new beam is determined according to a reference new beam, the reference new beam is a new beam of the reference frequency information, and the target new beam is a new beam of the reference frequency information. The target new beam is a new beam of the target frequency information. The invention provides a beam failure recovery method suitable for a large-bandwidth system.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to a beam failure recovery method, a communication device, and a computer-readable storage medium. Background Art

[0002] Beam forming is a signal processing technology that uses an antenna array to send and receive signals in a directionally manner. In beam forming technology, the signal is sent in a specific direction instead of omnidirectionally. This beam-based signal transmission method can focus the signal power in a specific direction, making it more likely that the signal will be detected at the destination. Therefore, beam-based communication can make full use of the antenna array gain, which is helpful in overcoming the problem of rapid attenuation of high-frequency signals. Since beam-based communication is prone to signal interruption due to occlusion and other reasons, the beam failure recovery (BFR) mechanism is introduced in the existing protocol to solve the problem of signal interruption.

[0003] With the further evolution of wireless communication technology, future terminals will operate in a larger frequency band range. Therefore, BFR suitable for large bandwidth systems has important research significance. Summary of the invention

[0004] One of the technical objectives of the present application is to provide a beam failure recovery method suitable for large bandwidth systems.

[0005] In a first aspect, an embodiment of the present application provides a beam failure recovery method, the method comprising: executing a joint BFR for reference frequency information and target frequency information, wherein the target frequency information and the reference frequency information belong to the same frequency information set, and the target frequency information and the reference frequency information have a first association relationship; wherein the joint BFR for the reference frequency information and the target frequency information comprises: a beam failure event of the target frequency information is determined according to a beam failure event of the reference frequency information, and / or a target new beam is determined according to a reference new beam, the reference new beam is a new beam of the reference frequency information, and the target new beam is a new beam of the target frequency information.

[0006] Optionally, before executing the joint BFR for the reference frequency information and the target frequency information, the method further includes: receiving association indication information, where the association indication information is used to indicate a first association relationship between the target frequency information and the reference frequency information.

[0007] Optionally, the target frequency information satisfies at least one of the following: a first beam failure detection reference signal BFDRS resource is configured on the target frequency information, and the first BFDRS resource and a second BFDRS resource configured on the reference frequency information have a second association relationship; a first new beam identification reference signal NBIRS resource is configured on the target frequency information, and the first NBIRS resource and the second NBIRS resource configured on the reference frequency information have the second association relationship.

[0008] Optionally, performing a joint BFR for reference frequency information and target frequency information includes: sending a BFR request, the BFR request including at least one of the following: first information, the first information is used to indicate first frequency information, the first frequency information refers to the frequency information where a beam failure event occurs; second information, the second information is used to indicate whether the beam failure event on the first frequency information is determined based on the measurement of BFDRS on the first frequency information; ninth information, the ninth information is used to indicate eighth frequency information, the beam failure event of the first frequency information is determined based on the measurement of BFDRS on the eighth frequency information; third information, the third information is used to indicate a new beam; fourth information, the fourth information is used to indicate second frequency information, the second frequency information is the frequency information to which the new beam is applied; fifth information, the fifth information is used to indicate whether the new beam is determined based on the measurement of NBIRS on the second frequency information; sixth information, the sixth information is used to indicate the third frequency information, the new beam is determined based on the measurement of NBIRS on the third frequency information.

[0009] Optionally, performing a joint BFR for reference frequency information and target frequency information includes: receiving a BFR response, the BFR response including at least one of the following: a denial of a beam failure event on the target frequency information; a confirmation or denial of a new beam reported by the terminal; seventh information, the seventh information being used to indicate the new beam; and eighth information being used to indicate the frequency information to which the new beam is applied.

[0010] Optionally, performing joint BFR on reference frequency information and target frequency information includes: determining that a beam failure event occurs on the target frequency information based on a beam failure event on the reference frequency information; and measuring NBIRS on the target frequency information to determine the target new beam.

[0011] Optionally, performing a joint BFR for reference frequency information and target frequency information includes: measuring BFDRS on the target frequency information to determine that a beam failure event occurs on the target frequency; and determining the target new beam based on the reference new beam, wherein the reference new beam is determined based on the measurement of NBIRS on the reference frequency information.

[0012] Optionally, the target new beam and the reference new beam satisfy at least one of the following: the reference new beam and the target new beam are both beams indicated by a third NBIRS resource identifier, and the third NBIRS resource is configured on the reference frequency information; the reference new beam is a beam indicated by a fourth NBIRS resource identifier, and the target new beam is a beam indicated by a fifth NBIRS resource identifier, wherein the fourth NBIRS resource is configured on the reference frequency information, the fifth NBIRS resource is configured on the target frequency information, and the fourth NBIRS resource and the fifth NBIRS resource have a second association relationship; the reference new beam corresponds to a first transmission configuration indicating a TCI state, and the target new beam corresponds to a second TCI state, wherein the first TCI state and the second TCI state are the same or have a third association relationship.

[0013] Optionally, performing joint BFR for reference frequency information and target frequency information includes at least one of the following: using a first parameter on the reference frequency information to transmit a target signal on the reference frequency information; using a second parameter on the target frequency information to transmit a target signal on the target frequency information; wherein the first parameter and the second parameter are both QCL parameters of the third NBIRS resource; or, the first parameter is the QCL parameter of the fourth NBIRS resource, and the second parameter is the QCL parameter of the fifth NBIRS resource; or, the first parameter is the QCL parameter indicated by the first TCI state, and the second parameter is the QCL parameter indicated by the second TCI state.

[0014] In a second aspect, an embodiment of the present application also provides a beam failure recovery method, the method comprising: sending BFR configuration information, the BFR configuration information being applied to a joint BFR for reference frequency information and target frequency information, the target frequency information and the reference frequency information belonging to the same frequency information set, and the target frequency information and the reference frequency information having an associated relationship; wherein the joint BFR for the reference frequency information and the target frequency information comprises: a beam failure event on the target frequency information is determined based on a beam failure event on the reference frequency information, and / or a target new beam is determined based on a reference new beam, the reference new beam is a new beam on the reference frequency information, and the target new beam is a new beam on the target frequency information.

[0015] Optionally, the BFR configuration information includes at least one of the following: configuration information of a second beam failure detection reference signal BFDRS resource on the reference frequency information; configuration information of a first BFDRS resource on the target frequency information, and the first BFDRS resource and the second BFDRS resource have a second association relationship; configuration information of a second new beam identification reference signal NBIRS resource on the reference frequency information; configuration information of a first NBIRS resource on the target frequency information, and the first NBIRS resource and the second NBIRS resource have a second association relationship.

[0016] Optionally, the method also includes: receiving a BFR request, the BFR request including at least one of the following: first information, the first information is used to indicate first frequency information, the first frequency information refers to the frequency information where a beam failure event occurs; second information, the second information is used to indicate whether the beam failure event on the first frequency information is determined based on the measurement of BFDRS on the first frequency information; ninth information, the ninth information is used to indicate eighth frequency information, the beam failure event of the first frequency information is determined based on the measurement of BFDRS on the eighth frequency information; third information, the third information is used to indicate a new beam; fourth information, the fourth information is used to indicate second frequency information, the second frequency information is the frequency information to which the new beam is applied; fifth information, the fifth information is used to indicate whether the new beam is determined based on the measurement of NBIRS on the second frequency information; sixth information, the sixth information is used to indicate the third frequency information, and the new beam is determined based on the measurement of NBIRS on the third frequency information.

[0017] Optionally, the method also includes: sending a BFR response, the BFR response including at least one of the following: a denial of a beam failure event on the target frequency information; a confirmation or denial of a new beam reported by the terminal; the seventh information, the eighth information is used to indicate the new beam; the eighth information, the ninth information is used to indicate the frequency information to which the new beam is applied.

[0018] Optionally, the target new beam and the reference new beam satisfy at least one of the following: the reference new beam and the target new beam are both beams indicated by a third NBIRS resource identifier, and the third NBIRS resource is configured on the reference frequency information; the reference new beam is a beam indicated by a fourth NBIRS resource identifier, and the target new beam is a beam indicated by a fifth NBIRS resource identifier, wherein the fourth NBIRS resource is configured on the reference frequency information, the fifth NBIRS resource is configured on the target frequency information, and the fourth NBIRS resource and the fifth NBIRS resource have a second association relationship; the reference new beam corresponds to a first transmission configuration indicating a TCI state, and the target new beam corresponds to a second TCI state, wherein the first TCI state and the second TCI state are the same or have a third association relationship.

[0019] Optionally, the method also includes: using a first parameter on the reference frequency information to transmit a target signal on the reference frequency information; using a second parameter on the target frequency information to transmit a target signal on the target frequency information; wherein the first parameter and the second parameter are both QCL parameters of the third NBIRS resource; or, the first parameter is the QCL parameter of the fourth NBIRS resource, and the second parameter is the QCL parameter of the fifth NBIRS resource; or, the first parameter is the QCL parameter indicated by the first TCI state, and the second parameter is the QCL parameter indicated by the second TCI state.

[0020] In the third aspect, an embodiment of the present application also provides a communication device, comprising: a processing module, used to perform a joint beam failure recovery BFR for reference frequency information and target frequency information; wherein the target frequency information and the reference frequency information belong to the same frequency set, and the target frequency information and the reference frequency information have a first association relationship; wherein the joint BFR for the reference frequency information and the target frequency information includes: a beam failure event on the target frequency information is determined based on a beam failure event on the reference frequency information, and / or a target new beam is determined based on a reference new beam, the reference new beam is a new beam on the reference frequency information, and the target new beam is a new beam on the target frequency information.

[0021] In a fourth aspect, an embodiment of the present application also provides a communication device, comprising: a communication module, used to send BFR configuration information, and the BFR configuration information is applied to a joint BFR for reference frequency information and target frequency information; wherein the target frequency information and the reference frequency information belong to the same frequency information set, and the target frequency information and the reference frequency information have an associated relationship; wherein the joint BFR for the reference frequency information and the target frequency information includes: a beam failure event on the target frequency information is determined based on a beam failure event on the reference frequency information, and / or a target new beam is determined based on a reference new beam, the reference new beam is a new beam on the reference frequency information, and the target new beam is a new beam on the target frequency information.

[0022] In a fifth aspect, an embodiment of the present application further provides a computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, the beam failure recovery method provided in any aspect is executed.

[0023] In a sixth aspect, an embodiment of the present application further provides a communication device, comprising a memory and a processor, wherein the memory stores a computer program that can be executed on the processor, and when the processor runs the computer program, the steps of the beam failure recovery method of the first aspect are executed.

[0024] In the seventh aspect, an embodiment of the present application also provides a communication device, including a memory and a processor, wherein the memory stores a computer program that can be executed on the processor, and when the processor runs the computer program, the steps of the beam failure recovery method provided in the second aspect are executed.

[0025] In an eighth aspect, an embodiment of the present application provides a chip (or a communication device) on which a computer program is stored. When the computer program is executed by the chip, the method provided in any aspect is executed.

[0026] In a ninth aspect, an embodiment of the present application provides a chip module having a computer program stored thereon, and when the computer program is executed by the chip module, the method provided in any aspect is executed.

[0027] In a tenth aspect, an embodiment of the present application provides a computer program product, which includes a computer program. When the computer program runs on a computer, the computer executes the method provided in any aspect.

[0028] In an eleventh aspect, an embodiment of the present application provides a communication system, which includes an apparatus for executing the method of the first aspect and an apparatus for executing the method provided by the second aspect.

[0029] Compared with the prior art, the technical solution of the embodiment of the present application has the following beneficial effects:

[0030] The embodiment of the present application introduces a joint BFR mechanism in a large bandwidth system. In the joint BFR mechanism, the terminal determines the beam failure event of frequency information (that is, target frequency information) having a first association relationship with a certain frequency information (that is, reference frequency information) based on the beam failure event of the frequency information, and / or determines the new beam of frequency information having a first association relationship with the frequency information based on the new beam of the certain frequency information. With the above scheme, the terminal infers the beam failure event and / or new beam of other frequency information based on the association relationship between the frequency information, avoiding the measurement of the beam failure detection reference signal and / or the new beam identification reference signal of each frequency information, which is conducive to reducing the complexity and measurement overhead of the terminal performing BFR in the large bandwidth system while ensuring the communication quality of the terminal in the large bandwidth system. In addition, the network device may not need to configure the beam failure detection reference signal and / or the new beam identification reference signal for each frequency information, which is conducive to reducing the configuration overhead.

[0031] In addition, in the scheme of the embodiment of the present application, the expansion or sharing of the beam failure event and / or the new beam depends on the first association relationship between the frequency information. Specifically, in the scheme of the present application, the beam failure event and / or the new beam of a certain frequency information is extended to the frequency information in the frequency information set that has a first association relationship with the frequency information. In a large bandwidth system, compared to the scheme of directly extending the beam failure event or the new beam on a certain frequency information to all the frequency information in the entire frequency information set, the scheme of the present application can avoid applying the beam failure event and the new beam to the frequency information with different spatial propagation characteristics, and is therefore conducive to improving the accuracy of the beam failure recovery process. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a flowchart of a beam failure recovery method in an embodiment of the present application;

[0033] Figure 2 yes Figure 1 A partial flow diagram of a specific implementation method of S12;

[0034] Figure 3 is a schematic diagram of the structure of a communication device in an embodiment of the present application;

[0035] Figure 4 is a schematic diagram of the structure of another communication device in an embodiment of the present application;

[0036] Figure 5 It is a schematic diagram of the hardware structure of a communication device in an embodiment of the present application. DETAILED DESCRIPTION

[0037] The communication systems to which the embodiments of the present application are applicable include, but are not limited to, third-generation systems (3G for short), LTE systems, fourth-generation systems (4G for short), fifth-generation systems (5G for short), NR systems, and future evolution systems or multiple communication convergence systems. Among them, the 5G system can be a non-standalone (NSA for short) 5G system or a standalone (SA for short) 5G system. The solutions of the embodiments of the present application can also be applied to various new communication systems in the future, such as 6G, 7G, etc.

[0038] The present application mainly relates to the communication between terminal equipment (or simply referred to as terminal) and network equipment. The terminal in the embodiments of the present application may refer to various forms of user equipment (UE), access terminal, user unit, user station, mobile station, mobile station (MS), remote station, remote terminal, mobile device, user terminal, terminal equipment (Terminal Equipment), wireless communication equipment, user agent or user device. The terminal may also be 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 vehicle-mounted device, a wearable device, a terminal in a future 5G network or a terminal in a future evolved Public Land Mobile Network (PLMN), etc., and the embodiments of the present application are not limited to this.

[0039] The network device in the embodiment of the present application may also be referred to as an access network device, for example, a base station (BS for short) (also referred to as a base station device), which is a device deployed in a radio access network (RAN for short) to provide wireless communication functions. For example, in the second generation (2nd-generation, 2G) network, the equipment providing base station functions includes a base transceiver station (BTS), the equipment providing base station functions in the 3G network includes a node B (Node B), the equipment providing base station functions in the 4G network includes an evolved node B (eNB), in the wireless local area network (WLAN), the equipment providing base station functions is an access point (AP), the equipment providing base station functions in NR is the next generation node base station (gNB), and the evolving node B (ng-eNB), wherein the gNB and the terminal communicate using NR technology, the ng-eNB and the terminal communicate using Evolved Universal Terrestrial Radio Access (E-UTRA) technology, and both gNB and ng-eNB can be connected to the 5G core network. The network device in the embodiment of the present application also includes a device that provides base station functions in a future new communication system, etc.

[0040] The BFR mechanism for the primary cell was introduced in Release 15 (Rel-15) of the 3rd Generation Partnership Project (3GPP), and the BFR mechanism for the secondary cell (Scell) was introduced in Release 16 of 3GPP. In the existing BFR mechanism, the BFRs on different cells are independent of each other, and the network device configures the BFR configuration information on each cell to the terminal, so that the terminal can perform BFR on each cell separately. Exemplarily, the network device configures the reference signal of the beam failure detection of each cell to the terminal, so that the terminal performs beam failure detection on each cell separately. In addition, the terminal performs a new beam detection on the cell where the beam failure is detected to determine the new beam to be applied to the cell.

[0041] In a large bandwidth system, the terminal communicates with the network device on multiple frequency information. If the existing BFR mechanism is still used, the network device needs to configure the beam failure detection reference signal and the new beam identification reference signal on each frequency information, which has a large configuration overhead. In addition, the terminal needs to perform beam failure detection and new beam detection on each frequency information, and the measurement overhead of the terminal is also large.

[0042] In view of this, an embodiment of the present application introduces a joint BFR mechanism in a large bandwidth system. In the joint BFR mechanism, the terminal determines the beam failure event of frequency information (that is, target frequency information) having a first association relationship with the frequency information based on the beam failure event of a certain frequency information (that is, reference frequency information), and / or determines the new beam of frequency information having a first association relationship with the frequency information based on a new beam of a certain frequency information. In the above scheme, the terminal infers the beam failure event and / or new beam of other frequency information based on the association relationship between the frequency information, avoiding the terminal from measuring the beam failure detection reference signal and / or the new beam identification reference signal of each frequency information, which is conducive to reducing the complexity and measurement overhead of the terminal performing BFR in the large bandwidth system while ensuring the communication quality of the terminal in the large bandwidth system. In addition, the network device may not need to configure the beam failure detection reference signal and / or the new beam identification reference signal for each frequency information, which is conducive to reducing the configuration overhead.

[0043] In addition, in the scheme of the embodiment of the present application, the expansion or sharing of the beam failure event and / or the new beam depends on the first association relationship between the frequency information. Specifically, in the scheme of the present application, the beam failure event and / or the new beam of a certain frequency information is extended to the frequency information in the frequency information set that has a first association relationship with the frequency information. In a large bandwidth system, compared to the scheme of directly extending the beam failure event or the new beam on a certain frequency information to all the frequency information in the entire frequency information set, the scheme of the present application can avoid applying the beam failure event and the new beam to the frequency information with different spatial propagation characteristics, and is therefore beneficial to improving the accuracy of the beam failure recovery process.

[0044] First, some nouns involved in the embodiments of the present application are introduced to facilitate understanding by those skilled in the art.

[0045] 1. Frequency information

[0046] The "frequency information" in the embodiment of the present application may be frequency identification information, for example, the frequency information may be identification information of a frequency interval. Alternatively, the frequency information may also be understood as a frequency interval. In the scheme of the embodiment of the present application, the reference signal (RS) on the frequency information may refer to an RS whose frequency domain resource location belongs to the frequency interval referred to by the frequency information, and the new beam of the frequency information may refer to a new beam used by the terminal to communicate with the network device on the frequency information.

[0047] Specifically, the frequency information or frequency interval may be at least one of the following: component carrier (CC), carrier frequency, carrier bandwidth, cell, cell bandwidth, subband, frequency band, bandwidth, bandwidth part (BandWidth Part, BWP), frequency point, physical cell, physical cell bandwidth, service cell, service cell bandwidth, frequency range (FR), resource block, physical resource block, frequency domain resource width of resource block, frequency domain resource width of physical resource block. Exemplarily, the above-mentioned FR may be FR1 and FR2 defined in the standard. It should be noted that FR may also be FR defined in future standards, for example, FR3, FR4, etc.

[0048] 2. Frequency Information Collection

[0049] The "frequency information set" in the embodiment of the present application refers to a set of frequency information, and the frequency information set includes multiple frequency information. The "frequency information set" can be the frequency information corresponding to the above-mentioned large bandwidth system, and the terminal can communicate with the network device on the frequency information included in the frequency information set.

[0050] In a specific implementation, the frequency information set can correspond to a transmission and reception point (TRP) one by one, and the TRP works in a large bandwidth system. Therefore, all the frequency information in the frequency information set corresponds to the same TRP. That is, the solution of the present application is applicable to a single TRP scenario.

[0051] Alternatively, a single frequency information set may correspond to multiple TRPs, that is, multiple TRPs communicate with the terminal in all or part of the frequency information in the frequency information set. That is, the solution of the present application is applicable to multiple TRP scenarios.

[0052] In one example, the frequency information is CC, and the frequency information set is a CC list (CC list).

[0053] In another example, the frequency information is a cell, and the frequency information set is a cell group.

[0054] In yet another example, the frequency information is a BWP, and the frequency information is a BWP group.

[0055] 3. The first relationship

[0056] In the embodiment of the present application, the first association relationship refers to the association relationship between frequency information, wherein frequency information with close frequencies may have the first association relationship.

[0057] In a specific implementation, the first association relationship between the frequency information may be configured by a network device. Alternatively, the first association relationship between the frequency information may be predefined by a protocol. Alternatively, the first association relationship between the frequency information may be determined by a terminal.

[0058] Exemplarily, the frequency information set is divided into multiple frequency information subsets according to the frequency size, and the frequency information in the same frequency information subset has a first association relationship. For example, the CC list includes 8 CCs, among which the 4 CCs with the smallest frequencies belong to the same CC subset, and the 4 CCs with the largest frequencies belong to the same CC subset. In other words, multiple frequency information with a first association relationship in the frequency information set can be regarded as a frequency information subset.

[0059] Specifically, the frequency information having the first association relationship has the same or similar spatial channels, spatial propagation characteristics, beam parameters, and the like.

[0060] In one embodiment of the present application, the first association relationship between frequency information may mean that the reference signal (RS) of quasi co-located (QCL) type D in the transmission configuration indication (TCI) state of the control resource set (CORESET) configured on different frequency information is the same or has a QCL relationship. In other words, the beam direction of the control channel on the frequency information having the first association relationship may be the same or similar.

[0061] In the solution of the embodiment of the present application, the frequency information set corresponds to multiple frequency information in the large bandwidth system, and at least two frequency information in the frequency information set do not have an association relationship. For example, the frequency information with the lowest frequency domain position and the frequency information with the highest frequency domain position may not have a first association relationship.

[0062] 4. Beam failure detection reference signal (BFDRS)

[0063] BFDRS refers to the RS used to detect beam failure events. BFDRS resources can be explicitly configured by the network device or determined implicitly by the terminal. Among them, explicit configuration by the network device may refer to the network device configuring BFDRS resources through explicit signaling. For example, the network device may send configuration information of BFDRS resources or configuration information of BFDRS resource set to the terminal. Determining in an implicit manner may refer to the terminal using the QCL-TypeD RS in the TCI state of CORESET as BFDRS.

[0064] It should be noted that the embodiment of the present application does not limit the type of BFDRS. For example, BFDRS may be a channel state information reference signal (Channel State Information Reference Signal, CSI-RS), but is not limited thereto.

[0065] 5. Beam failure event

[0066] In the embodiments of the present application, the "beam failure event" may also be referred to as beam failure, beam fault, etc.

[0067] In the solution of the present application, the beam failure event may be determined by beam failure detection (BFD).

[0068] The following is an exemplary description of the specific process of beam failure detection, taking the fourth frequency information in the frequency information set as an example. Specifically, the fourth frequency information is configured with a BFDRS resource set, and the physical layer of the terminal can measure the quality of the wireless link according to the BFDRS resources in the BFDRS resource set. If the measurement results of all BFDRS resources in the BFDRS resource set on the fourth frequency information are lower than the preset threshold value, the terminal determines that a beam failure instance (Beam Failure Instance, BFI) of the fourth frequency information is detected, and the physical layer of the terminal can report a BFI indication to the media access control (Media Access Control, MAC) layer. The MAC layer uses the BFI counter corresponding to the fourth frequency information to count the BFI indication reported by the physical layer. Whenever a BFI indication is received, the BFI timer corresponding to the fourth frequency information is restarted. When the BFI timer corresponding to the fourth frequency information times out, the BFI counter corresponding to the fourth frequency information is reset to zero and counted again. When the BFI counter reaches the maximum number of times configured by the network device, the terminal declares that a beam failure event occurs on the fourth frequency information. Among them, the fourth frequency information can be any frequency information configured with BFDRS resources in the frequency information set.

[0069] The measurement result being lower than a preset threshold value may mean that the channel quality information is lower than a preset threshold value. The channel quality information may be at least one of the following: reference signal receiving power (RSRP), channel quality indicator (CQI), signal to interference plus noise ratio (SINR), signal noise ratio (SNR), etc.

[0070] In addition, in the scheme of the embodiment of the present application, the beam failure event may not be determined by BFD. Taking the fifth frequency information in the frequency information set as an example, there is a first association relationship between the fifth frequency information and the fourth frequency information. After the beam failure event of the fourth frequency information is determined by BFD, based on the first association relationship between the fifth frequency information and the fourth frequency information, the terminal can determine the beam failure event of the fifth frequency information. That is, in the scheme of the embodiment of the present application, the terminal can extend the beam failure event on a certain frequency information to other frequency information that has a first association relationship with the frequency information.

[0071] 6. New beam identification reference signal (NBIRS)

[0072] NBIRS refers to RS used to detect new beams. NBIRS resources can be explicitly configured by a network device. Among them, explicit configuration of the network device can refer to the network device configuring NBIRS resources through explicit signaling. Specifically, the network device can send configuration information of NBIRS resources or configuration information of NBIRS resource sets to the terminal. For example, NBIRS can be CSI-RS, but is not limited to this.

[0073] 7. New beam identification

[0074] In the solution of the embodiment of the present application, the new beam can be determined by new beam identification. The specific process of new beam identification is described exemplarily below by taking the sixth frequency information in the frequency information set as an example. The sixth frequency information can be any frequency information in the frequency information set that is configured with NBIRS resources.

[0075] The terminal can measure the NBIRS resources on the sixth frequency information to find a new beam on the sixth frequency information. Specifically, when the physical layer of the terminal receives a request from the MAC layer, it measures each NBIRS resource on the sixth frequency information, and then reports the NBIRS resource identifier whose measurement result exceeds the preset threshold value to the MAC layer, and the MAC layer selects a beam from the beams corresponding to the NBIRS resource identifier reported by the physical layer as a new beam. For example, the MAC layer can select the beam with the best measurement result as the new beam.

[0076] In addition, in the solution of the embodiment of the present application, the new beam may not be determined by the new beam. Taking the seventh frequency information in the frequency information set as an example, there is a first association relationship between the seventh frequency information and the sixth frequency information. After the new beam of the sixth frequency information is determined by the new beam identification, based on the first association relationship between the seventh frequency information and the sixth frequency information, the terminal can determine the new beam of the seventh frequency information.

[0077] 8. Second Relationship

[0078] In the solution of the embodiment of the present application, the second association relationship may be an association relationship between RS resources. Specifically, the second association relationship between multiple RS resources may include at least one of the following:

[0079] (1) Multiple RS resources have the same collocation information, and / or the resource sets to which the multiple RS resources belong have the same collocation information;

[0080] (2) Multiple RS resources belong to the same RS resource set, or the RS resource sets to which multiple RS resources belong have the same resource set identifier;

[0081] (3) Multiple RS resources correspond to the same TCI state, or the resource sets to which multiple RS resources belong correspond to the same TCI state;

[0082] (4) Multiple RS resources correspond to the same CORESET PoolIndex, or the resource sets to which multiple RS resources belong correspond to the same CORESET PoolIndex;

[0083] (5) Multiple RS resources correspond to the same TRP, or the resource sets to which multiple RS resources belong correspond to the same TRP;

[0084] (6) There is a QCL relationship between multiple RS resources, that is, the QCL parameters of multiple RS resources are the same or similar.

[0085] It should be noted that the second association relationship between RS resources can also be understood as the second association relationship between RSs transmitted by the RS resources.

[0086] The specific embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0087] Reference Figure 1 , Figure 1 It is a flow chart of the first communication method in the embodiment of the present application. Figure 1 The communication method shown may include S11 and S12. In this application, S in each step number represents a step.

[0088] S11, the network device sends BFR configuration information to the terminal, where the BFR configuration information is applied to the joint BFR;

[0089] S12: The terminal performs joint BFR for reference frequency information and target frequency information, wherein the target frequency information and the reference frequency information belong to the same frequency information set, and the target frequency information and the reference frequency information have a first association relationship.

[0090] It should be noted that, in a specific implementation, S11 is an optional step.

[0091] Exemplarily, the BFR configuration information may include enabling information. If the value of the information element used for enabling in the enabling information in the BFR configuration information is 1 or enabled or the enabling information is configured, the terminal may perform joint BFR on the frequency information set. If the value of the information element used for enabling in the enabling information in the BFR configuration information is 0 or disabled or the enabling information is not configured, the terminal independently performs BFR on multiple frequency information.

[0092] As another example, the BFR configuration information may include: configuration information of BFDRS resources on at least one frequency information in the frequency information set, and configuration information of NBIRS resources on at least one frequency information. It should be noted that a certain frequency information in the frequency information set may be configured with both BFDRS resources and NBIRS resources, or a certain frequency information may be configured with only BFDRS resources or only NBIRS resources.

[0093] In one embodiment of the present application, the BFR configuration information may include association indication information, and the association indication information may be used to indicate multiple frequency information having a first association relationship in the frequency information set. In a specific implementation, any two frequency information in the multiple frequency information having the first association relationship may be reference frequency information and target frequency information to each other. That is, the association indication information may be used to indicate the first association relationship between the target frequency information and the reference frequency information.

[0094] In another embodiment of the present application, the first association relationship between the frequency information may also be determined by the second association relationship between the BFDRS resources configured on different frequency information.

[0095] Specifically, if there is a second association relationship between the BFDRS resources on multiple frequency information, the terminal can determine that there is a first association relationship between the multiple frequency information. More specifically, the terminal can extend the beam failure event determined by beam failure detection to the frequency information where the BFDRS resource configured with the second association relationship is located. In other words, the first BFDRS resource configured on the target frequency information and the second BFDRS resource configured on the reference frequency information have a second association relationship.

[0096] Among them, the second association relationship between the BFDRS resources on multiple frequency information may include at least one of the following: the BFDRS resources on multiple frequency information or the resource sets to which the BFDRS resources belong have the same co-location information; the BFDRS resources on multiple frequency information belong to the same BFDRS resource set, or the BFDRS resource sets to which multiple BFDRS resources belong have the same resource set identifier; the BFDRS resources on multiple frequency information or the resource sets to which the BFDRS resources belong correspond to the same TCI state; the BFDRS resources on multiple frequency information or the resource sets to which the BFDRS resources belong correspond to the same CORESET pool index (CORESET PoolIndex); the BFDRS resources on multiple frequency information or the resource sets to which the BFDRS resources belong correspond to the same TRP; there is a QCL relationship between the BFDRS resources on multiple frequency information, that is, the QCL parameters of the BFDRS resources on multiple frequency information are the same or similar.

[0097] In another embodiment of the present application, the first association relationship between different frequency information may also be determined by the second association relationship between NBIRS resources configured on different frequency information.

[0098] Specifically, if there is a second association relationship between the NBIRS resources on multiple frequency information, the terminal can determine that there is a first association relationship between the multiple frequency information. More specifically, the terminal can extend the new beam determined by the new beam identification to the frequency information where the NBIRS resource with the second association relationship is configured. In other words, the first NBIRS resource configured on the target frequency information and the second NBIRS resource configured on the reference frequency information have a second association relationship.

[0099] Among them, the second association relationship between NBIRS resources on multiple frequency information may include at least one of the following: NBIRS resources on multiple frequency information or the resource sets to which NBIRS resources belong have the same co-location information; NBIRS resources on multiple frequency information belong to the same NBIRS resource set, or the NBIRS resource sets to which multiple NBIRS resources belong have the same resource set identifier; NBIRS resources on multiple frequency information or the resource sets to which NBIRS resources belong correspond to the same TCI state; NBIRS resources on multiple frequency information or the resource sets to which NBIRS resources belong correspond to the same CORESET PoolIndex; NBIRS resources on multiple frequency information or the resource sets to which NBIRS resources belong correspond to the same TRP; NBIRS resources on multiple frequency information have a QCL relationship, that is, the QCL parameters of the NBIRS resources on multiple frequency information are the same or similar.

[0100] Based on the above, the terminal can determine the first association relationship between the frequency information in the frequency information set.

[0101] In a non-limiting example, the BFR configuration information may include a first BFI counter and a second BFI counter, and the maximum number of the first BFI counter is greater than the maximum number of the second BFI counter. The terminal may use the first BFI counter to perform beam failure detection on the reference frequency information configured with BFDRS resources. If a beam failure event is detected, the second BFI counter is used to perform beam failure detection on the target frequency information to determine whether a beam failure event occurs on the target frequency information. In this scheme, the beam failure event on the reference frequency information is not directly applied to the target frequency information configured with BFDRS resources, but is used to reduce or relax the judgment criteria for the beam failure event of the target frequency information. Compared with the scheme of directly extending the beam failure event of the reference frequency information to the target frequency information, the above scheme is conducive to ensuring the accuracy of the beam failure event judgment on the target frequency information.

[0102] Exemplarily, it is assumed that the frequency information set includes multiple frequency information, and the multiple frequency information are ranked from high to low according to the frequency domain position: F1, F2, F3 and F4. Among them, there is a first association relationship between F1, F2 and F3, and F1 and F3 can be configured with BFDRS resources, but F2 is not configured with BFDRS resources. The terminal can use the first BFI counter to make a judgment during the measurement of the BFDRS resources on F1. If it is determined that a beam failure event occurs on F1, the terminal can directly determine that a beam failure event also occurs on F2 based on the first association relationship between F1 and F2. Since BFDRS resources are also configured on F3, the beam failure event of F1 may not be directly applied to F3. During the process of beam failure detection on F3, the terminal can use the second BFI counter to time the detected BFI to determine whether a beam failure event occurs on F3.

[0103] In S12, the terminal performs joint BFR for the reference frequency information and the target frequency information.

[0104] Specifically, joint BFR may include the following steps:

[0105] Step 1: Determine the beam failure event; Step 2: Determine the new beam; Step 3: The terminal sends a beam failure recovery request (Beam Failure Recovery reQuest, BFRQ) to the network device; Step 4: The network device sends a beam failure recovery response (Beam Failure Recovery Response, BFRR) to the terminal; Step 5: Beam reset (BeamReset).

[0106] In the specific implementation of step one, the terminal can determine the beam failure event of the target frequency information based on the beam failure event of the reference frequency information. For ease of description, the frequency information of the beam failure event determined by beam failure detection is referred to as the first reference frequency information below, that is, the beam failure event of the first reference frequency information is determined by beam failure detection.

[0107] Specifically, the terminal can perform beam failure detection on the frequency information configured with BFDRS resources. If it is determined through beam failure detection that a beam failure event occurs in a certain frequency information (that is, the first reference frequency information), it can be determined that a beam failure event also occurs in the first target frequency information. Among them, there is a first association relationship between the first target frequency information and the first reference frequency information. In other words, the beam failure event of the first reference frequency information is determined through beam failure detection, and the beam failure event of the first target frequency information is inferred based on the beam failure event of the first reference frequency information.

[0108] Among them, the first target frequency information may not be configured with BFDRS resources, or the first target frequency information may also be configured with BFDRS resources, and this embodiment does not limit this. In a specific implementation, if the first target frequency information is also configured with BFDRS resources, the terminal may also perform beam failure detection on the first target frequency information. Regardless of whether the beam failure event of the first target frequency information is detected through the beam failure detection, once it is determined that the beam failure event occurs in the first reference frequency information, the terminal can determine that the beam failure event also occurs on the first target frequency information.

[0109] For example, the frequency information set includes F1, F2 and F3, wherein F1 and F2 have a first association relationship, but F1 and F3 do not have a first association relationship, and F2 and F3 do not have a first association relationship. If the terminal determines that a beam failure event occurs on F1 through beam failure detection on F1, the terminal can determine that a beam failure event also occurs on F2 based on the beam failure event of F1, but cannot determine that a beam failure event also occurs on F3 based on the beam failure event of F1. Among them, BFDRS resources may be configured on F2 but no beam failure event is detected, or BFDRS resources may be configured on F2 and a beam failure event is detected, or BFDRS resources may not be configured on F2.

[0110] In the specific implementation of step 2, the terminal may determine the target new beam based on the reference new beam, wherein the reference new beam refers to the new beam of the reference frequency information, and the target new beam refers to the new beam of the target frequency information.

[0111] As a specific implementation method, the terminal may use the reference new beam as the target new beam. Specifically, the terminal determines through new beam identification that the reference new beam is the beam indicated by the third NBIRS resource identifier. Further, the terminal may determine the beam indicated by the third NBIRS resource identifier as the target new beam, that is, the reference new beam and the target new beam are both beams indicated by the third NBIRS resource identifier, and the third NBIRS resource is configured on the reference frequency information. In this implementation method, the target frequency information may or may not be configured with NBIRS resources.

[0112] As another specific implementation, the terminal may determine the target new beam based on the second association relationship between the new beam and the NBIRS resource. Specifically, the terminal determines through the new beam identification that the new beam of the reference frequency information is the beam indicated by the fourth NBIRS resource identifier, wherein the fourth NBIRS resource is configured on the reference frequency information. If the fourth NBIRS resource and the fifth NBIRS resource configured on the target frequency information have a second association relationship, the terminal may determine that the beam indicated by the fifth NBIRS resource identifier is the target new beam.

[0113] For ease of description, the frequency information of the new beam determined by new beam identification is referred to as second reference frequency information below, that is, the new beam on the second reference frequency information is determined by new beam identification.

[0114] Specifically, the terminal can perform new beam detection on the frequency information configured with NBIRS resources and determined to have a beam failure event, and determine the new beam of the frequency information. Further, the terminal can use the frequency information as the second reference frequency information, and further, the terminal can determine the new beam of the second target frequency information based on the new beam of the second reference frequency information. In other words, the new beam of the second reference frequency information can be determined by new beam identification, and the new beam of the second target frequency information can be inferred based on the new beam of the second reference frequency information.

[0115] The second target frequency information may not be configured with NBIRS resources, or the second target frequency information may be configured with NBIRS resources, which is not limited in this embodiment.

[0116] For example, the frequency information set includes F1, F2, and F3, wherein F1 and F2 have a first association relationship, but F1 and F3 do not have a first association relationship, and F2 and F3 do not have a first association relationship. If the terminal determines that the new beam of F1 is beam 1 through the new beam identification of F1, and the terminal determines that the new beam of F3 is beam 3 through the new beam identification of F3, the terminal can determine that the new beam of F2 is beam 1.

[0117] It should be noted that the second reference frequency information may be the first reference frequency information. Alternatively, the second reference frequency information may also be the first target frequency information. That is, the beam failure event of the second reference frequency information may be determined by beam failure detection, or may be inferred based on beam failure events of other frequency information. Exemplarily, if NBIRS resources are configured on the first target frequency information, the terminal may measure the NBIRS resources of the first target frequency information to determine a new beam of the first target frequency information.

[0118] In addition, the second target frequency information may be the first reference frequency information, or it may be the first target frequency information. That is, the beam failure event of the second target frequency information may be determined based on beam failure detection, and the terminal measures the BFDRS resources of the second target frequency information to determine that a beam failure event occurs on the second target frequency. Alternatively, the beam failure event of the second target frequency information may be inferred based on beam failure events of other frequency information.

[0119] Exemplarily, the first reference frequency information is configured with BFDRS resources, and the terminal determines that a beam failure event occurs in the first reference frequency information by measuring the BFDRS resources. Then, the terminal determines that a beam failure event also occurs in the first target frequency information having a first association relationship with the first reference frequency information.

[0120] Furthermore, if the first reference frequency information is also configured with NBIRS resources, but the first target frequency information is not configured with NBIRS resources, the terminal can determine the new beam of the first reference frequency information by measuring the NBIRS resources, and determine the new beam of the first target frequency information based on the determined new beam. In this case, the first reference frequency information is the second reference frequency information, and the first target frequency information is the second target frequency information.

[0121] If the first reference frequency information is also configured with NBIRS resources, and the first target frequency information is also configured with NBIRS resources, the terminal can measure the NBIRS resources on the first reference frequency information to determine the new beam of the first reference frequency information, and measure the NBIRS resources on the first target frequency information to determine the new beam of the first target frequency information.

[0122] If the first reference frequency information is not configured with NBIRS resources, but the first target frequency information is configured with NBIRS resources, the terminal can measure the NBIRS resources on the first target frequency information to determine the new beam of the first target frequency information, and determine the new beam of the first reference frequency information based on the determined new beam. In this case, the first reference frequency information is the second target frequency information, and the first target frequency information is the second reference frequency information.

[0123] In step 3, the terminal may report the beam failure event and the new beam determined by the terminal to the network device through BFRQ. In step 4, the network device sends a BFRR to the terminal.

[0124] Specifically, by executing steps three and four, the terminal can determine one or more new beams. In step five, the terminal uses the new beam to perform beam reset on at least one frequency information to which each new beam is applied, so that the target signal on the frequency information to which the new beam is applied is switched to the new beam.

[0125] Assuming that the new beam determined by the terminal includes the above-mentioned reference new beam and target new beam, the terminal can use the first parameter on the reference frequency information to transmit the target signal on the reference frequency information; and use the second parameter on the target frequency information to transmit the target signal on the target frequency information.

[0126] As a possible implementation manner, the first parameter and the second parameter are both QCL parameters of the third NBIRS resource mentioned above.

[0127] As another possible implementation manner, the first parameter is the QCL parameter of the fourth NBIRS resource mentioned above, and the second parameter is the QCL parameter of the fifth NBIRS resource mentioned above.

[0128] As another possible implementation, the reference new beam corresponds to a first TCI state, and the target new beam corresponds to a second TCI state, wherein the first TCI state and the second TCI state are the same or the first TCI state and the second TCI state have a third association relationship. In step five, the first parameter is a QCL parameter indicated by the first TCI state, and the second parameter is a QCL parameter indicated by the second TCI state.

[0129] Among them, the TCI state corresponding to the new beam may refer to the new TCI state indicated in the BFRR or in the downlink control signaling after the network device receives the BFRQ, and the new TCI state may correspond to the new beam. Specifically, the new beam indicated by the new TCI state may be the new beam reported by the terminal in the BFRQ. Alternatively, the network device and the terminal may switch the target signal to the new beam by default according to the TCI state corresponding to the new beam. For example, after a preset time after the network device receives the BFRQ, or after a preset time after the terminal receives the BFRR, or after a preset time after the terminal receives the downlink confirmation message corresponding to the BFRQ, the network device and the terminal may switch the beam of the target signal to the new beam reported by the terminal in the BFRQ.

[0130] In addition, the first TCI state and the second TCI state having a third association relationship may mean that the source RS of the first TCI state and the source RS of the second TCI state are the same, or the source RS of the first TCI state and the source RS of the second TCI state have a second association relationship.

[0131] Accordingly, the network device also uses the first parameter to transmit the target signal on the reference frequency information and uses the second parameter to transmit the target signal on the target frequency information, thereby restoring the communication link between the terminal and the network device on multiple frequency information.

[0132] For more information on steps 3 to 5 of the Joint BFR mechanism, see the following section on Figure 2 Related description.

[0133] Reference Figure 2 , Figure 2 yes Figure 1 A partial flow chart of a specific implementation method of S12.

[0134] S21, the terminal sends a BFRQ to the network device;

[0135] S22, the network device sends a BFRR to the terminal;

[0136] S23, the network device and the terminal perform beam resetting.

[0137] Before S21, the terminal may determine a beam failure event and determine a new beam. For the specific contents of the beam failure event and the new beam, reference may be made to the above related descriptions, which will not be repeated here.

[0138] In S21, the terminal sends a BFRQ to the network device. Correspondingly, the network device receives the BFR request. In a specific implementation, the BFRQ may include at least one of the following:

[0139] (1) first information, where the first information is used to indicate first frequency information, and the first frequency information refers to frequency information at which a beam failure event occurs;

[0140] Among them, the first frequency information can be the reference frequency information mentioned above, or it can be the target frequency information. In other words, the beam failure event occurring on the first frequency information can be determined by measuring the BFDRS on the first frequency information, or it can be inferred by the beam failure event on other frequency information. That is, the frequency information where the inferred beam failure event is located can be explicitly indicated in the BFRQ.

[0141] In a non-limiting example, the terminal may be configured with a first model, and the beam failure event on the first frequency information may also be predicted by the first model. The first model may be an artificial intelligence (AI) model or a machine learning (ML) model.

[0142] In another non-limiting example, the beam failure events of the first frequency information indicated by the BFRQ are all determined through the measurement of the BFDRS on the first frequency information, that is, the beam failure events of the first frequency information indicated by the BFRQ are all determined through beam failure detection. The BFRQ may not carry the indication information of the above-mentioned first target frequency information (such as the identifier of the first target frequency information). In this case, the network device can determine that a beam failure event occurs on the frequency information associated with the first frequency information indicated by the BFRQ based on the first association relationship between the frequency information. In other words, the BFRQ may only carry the identifier of the frequency information where the beam failure event is determined by beam failure detection, and the network device may extend the beam failure event on the frequency information indicated by the BFRQ to other frequency information based on the first association relationship between the frequency information.

[0143] Optionally, when the number of first frequency information indicated by BFRQ is one or more, it can also be assumed that the beam failure events of the first frequency information are all determined through beam failure detection. Furthermore, the network device can extend the beam failure events on the first frequency information to other frequency information based on the first association relationship between the frequency information.

[0144] In another non-limiting example, the number of frequency information indicating that a beam failure event has occurred indicated by the BFRQ is the same as the number of frequency information in the frequency information set. That is, the BFRQ indicates that a beam failure event has occurred on all frequency information in the frequency information set. In this case, the BFRQ may include an identifier of the frequency information set, or may only include identifiers of some frequency information in the frequency information set. The network device may determine that a beam failure event has occurred on all frequency information in the frequency information set based on the identifier of the frequency information set in the BFRQ, or the network device may determine by default that a beam failure event has occurred on all frequency information in the frequency information set where the partial frequency information is located based on the identifier of the partial frequency information in the BFRQ. Optionally, the BFRQ may not include the first information.

[0145] (2) Second information, the second information may be used to indicate whether the beam failure event on the first frequency information is determined based on the measurement of the BFDRS on the first frequency information. In other words, the second information may be used to indicate whether the beam failure event on the first frequency information is determined by beam failure detection.

[0146] Specifically, the second information may correspond one-to-one to the first frequency information, and the second information corresponding to each first frequency information may occupy 1 bit. If the value of the bit is 1, it indicates that the beam failure event of the corresponding first frequency information is determined based on the measurement of BFDRS on the first frequency information. If the value of the bit is 0, it indicates that the beam failure event on the corresponding first frequency information is not determined based on the measurement of BFDRS on the first frequency information. In other words, if the value of the bit is 0, it indicates that the beam failure event on the corresponding first frequency information is inferred based on the beam failure events on other frequency information.

[0147] (3) Ninth information, where the ninth information can be used to indicate the eighth frequency information, wherein the beam failure event of the first frequency information is determined based on the measurement of the BFDRS on the eighth frequency information.

[0148] The eighth frequency information may be the first frequency information, or may be other frequency information having a first association relationship with the first frequency information. More specifically, if the bit value corresponding to the first frequency information in the second information is 1, the eighth frequency information is the first frequency information; if the bit value corresponding to the first frequency information in the second information is 0, the eighth frequency information is frequency information having a first association relationship with the first frequency information.

[0149] (4) The tenth information: The tenth information may be used to indicate the BFDRS set corresponding to the beam failure event. Specifically, the tenth information may be an identifier of the BFDRS set to which the BFDRS that detects the beam failure event belongs.

[0150] More specifically, the beam failure event on the first frequency information can be determined based on the measurement of the BFDRS in the BFDRS set indicated by the tenth information. In other words, the BFDRS set to which the BFDRS on the eighth frequency information belongs is the BFDRS set indicated by the tenth information. In other words, the BFDRS set indicated by the tenth information is a resource set configured on the eighth frequency information.

[0151] In a specific implementation, the terminal can communicate with a single TRP on a single frequency information, or the terminal can communicate with multiple TRPs on a single frequency information. The network device can configure one BFDRS set for each TRP respectively, so that the network device can determine the TRP where the beam link failure occurs based on the identifier of the BFDRS set where the BFDRS that detected the beam failure event is located, and then restore the beam link between the TRP and the terminal. Therefore, the tenth information can also be used to indicate the TRP where the beam failure event occurs. Therefore, the network device can determine that the communication link between the terminal on the first frequency information and the TRP indicated by the tenth information fails in combination with the first information. Furthermore, the network device can determine that the same TRP on the frequency information that has a first association relationship with the first frequency information (such as a TRP with the same TRP identifier or a TRP with the same TRP indication information) also has a beam link failure.

[0152] In other embodiments, the tenth information may also be referred to as TRP indication information. The tenth information may be a TRP identifier, etc. Based on the TRP identifier, the TRP where the beam failure event occurs may be determined, that is, the identifier of the BFDRS set where the BFDRS that detected the beam failure event is located may be determined.

[0153] (5) Eleventh information: The eleventh information may be used to indicate whether the BFR request includes a new beam of the first frequency information. Specifically, the eleventh information may correspond to the first frequency information one by one, and each eleventh information corresponding to the first frequency information may occupy 1 bit. If the value of the bit is 1, it indicates that the BFR request includes a new beam of the first frequency information corresponding to the bit. If the value of the bit is 0, it indicates that the BFR request does not include a new beam of the first frequency information corresponding to the bit.

[0154] (6) third information, where the third information is used to indicate a new beam;

[0155] In a specific implementation, the third information may be used to indicate information of the beam. Exemplarily, the third information may be an NBIRS resource identifier or an NBIRS resource index. For example, if the NBIRS is a CSI-RS, the third information may be an index (index) or an identifier (ID) of the CSI-RS resource.

[0156] The new beam indicated by the third information may be determined through NBIRS measurement, or may be determined based on a new beam on other frequency information.

[0157] In a non-limiting example, the new beam may be predicted by the first model described above.

[0158] Exemplarily, the new beam indicated by the third information may correspond to the first frequency information, that is, the third information indicates the new beam of the first frequency information. If the BFRQ includes the first information, the first frequency information corresponding to the new beam has a value of 1 in the corresponding bit in the eleventh information.

[0159] (7) Twelfth information: The twelfth information is used to indicate the frequency information where the NBIRS resource indicating the new beam in the third information is located.

[0160] In a specific implementation, different frequency information may be configured with NBIRS resources that identify the same or different ones. To this end, the BFR request may include the twelfth information, and the network device may uniquely determine the new beam indicated by the third information based on the twelfth information and the third information.

[0161] (8) fourth information, where the fourth information is used to indicate second frequency information, where the second frequency information is frequency information to which the new beam is applied;

[0162] Specifically, the fourth information may correspond to the third information, wherein each new beam may be applied to one or more second frequency information.

[0163] (9) fifth information, the fifth information is used to indicate whether the new beam is determined based on the measurement of the NBIRS on the second frequency information;

[0164] Specifically, the fifth information may correspond to the second frequency information one by one, and the fifth information corresponding to each second frequency information may occupy 1 bit. If the value of the bit is 1, it indicates that the new beam corresponding to the second frequency information is determined based on the measurement of the NBIRS on the second frequency information. If the value of the bit is 0, it indicates that the new beam corresponding to the second frequency information is not determined based on the measurement of the NBIRS on the second frequency information. In this case, the third frequency information can be further determined in combination with the sixth information.

[0165] (10) The sixth information is used to indicate the third frequency information, and the new beam is determined based on the measurement of NBIRS on the third frequency information. The sixth information and the third information may correspond one to one. That is, the third frequency information and the new beam may correspond one to one. Alternatively, the sixth information may correspond one to one with the second frequency information to indicate that the new beam applied to each second frequency information is determined based on the NBIRS measurement on the third frequency information corresponding to the second frequency information. That is, the second frequency information and the third frequency information are associated with each other.

[0166] In a non-limiting example, the fifth information corresponding to the third information included in the BFRQ is 1, that is, the new beam indicated by the third information is determined by measuring the NBIRS on the second frequency information. After the network device receives the BFRQ, it can determine the new beam of frequency information that has a first association relationship with the second frequency information based on the first association relationship between the frequency information. In other words, the BFRQ may only carry the frequency information identifier of the new beam determined by the new beam identification, and the network device may extend the new beam indicated by the BFRQ to other frequency information based on the first association relationship between the frequency information. In this case, the BFRQ may not need to include the sixth information.

[0167] (9) Thirteenth information: The thirteenth information can be used to indicate the RS set corresponding to the new beam.

[0168] Among them, the RS set indicated by the thirteenth information may be the NBIRS set to which the NBIRS resource used to indicate the new beam belongs. Among them, the NBIRS resource used to indicate the new beam may be the NBIRS resource that identifies the new beam, or it may be an NBIRS resource that has a second association relationship with the NBIRS resource that identifies the new beam and is configured on the second frequency information.

[0169] As a possible implementation method, the third information may be an NBIRS resource identifier, and the thirteenth information may be an NBIRS set to which the NBIRS resource indicated by the third information belongs. The NBIRS set indicated by the thirteenth information may be configured on the third frequency information mentioned above, or the NBIRS set indicated by the thirteenth information may also be configured on the second frequency information mentioned above.

[0170] In a specific implementation, the network device can configure one NBIRS set for each TRP respectively. Thus, the network device can determine the NBIRS set to which the NBIRS indicating the new beam belongs based on the NBIRS set indicated by the thirteenth information, that is, determine the NBIRS set configured on which TRP the terminal measures the new beam to obtain the NBIRS set, and then determine the TRP to which the new beam is applied. Thus, the thirteenth information can be used to indicate the TRP to which the new beam is applied. Thus, the network device can determine the TRP indicated by the thirteenth information on the second frequency information that the new beam is applied in combination with the fourth information.

[0171] Alternatively, the resource set indicated by the thirteenth information may be a BFDRS set corresponding to the new beam. The BFDRS set corresponding to the new beam may be configured on the second frequency information, or the BFDRS set corresponding to the new beam may be configured on the first frequency information having a first association relationship with the second frequency information in the BFRQ, and the second information corresponding to the first frequency information is 1.

[0172] Specifically, the BFDRS set corresponding to the new beam may be a BFDRS set that detects a beam failure event associated with the new beam, wherein the beam failure event associated with the new beam refers to a beam failure event that triggers new beam identification to thereby determine the new beam.

[0173] Exemplarily, a beam failure event associated with the new beam may occur in the second frequency information, and the terminal may determine the new beam through new beam identification on the second frequency information or the third frequency information associated with the second frequency information.

[0174] For example, in a multi-TRP scenario, the network device can usually configure a BFDRS set and an NBIRS set for each TRP, and the BFDRS set and the NBIRS set are corresponding. When the terminal measures the BFDRS set on a certain TRP and determines that a beam failure event occurs in the TRP, the terminal measures the NBIRS set on the TRP again and obtains a new beam, which is used to restore the beam link of the TRP. Then the BFDRS set corresponding to the new beam is the BFDRS set configured on the TRP, and the BFDRS set is used to characterize the TRP.

[0175] For another example, the terminal communicates with at least one TRP on the reference frequency information, and communicates with at least one TRP on the target frequency information, wherein the at least one TRP on the reference frequency information and the at least one TRP on the target frequency information both include a first TRP. The network device may configure a BFDRS set for the first TRP on the reference frequency information, and the terminal measures the BFDRS set (that is, the BFDRS set corresponding to the first TRP on the reference frequency information) and determines that a beam failure event occurs for the first TRP on the reference frequency information. Furthermore, the terminal may determine that a beam failure event also occurs for the first TRP on the target frequency information based on the first association relationship between the frequency information. The network device can configure an NBIRS set at the first TRP on the target frequency information, and the terminal can measure the NBIRS set (that is, the NBIRS set corresponding to the first TRP on the target frequency information) and obtain a new beam. The NBIRS set corresponding to the new beam is the NBIRS set configured on the first TRP on the target frequency information, and the NBIRS set corresponds to the BFDRS set configured on the first TRP on the reference frequency information, that is, both correspond to the first TRP. Therefore, it can be seen that the BFDRS set corresponding to the new beam is the BFDRS set configured on the first TRP on the reference frequency information.

[0176] Referring to Table 1, which shows a format of a BFRQ, the BFRQ in this embodiment is described in a non-limiting manner below in conjunction with Table 1. In other embodiments, the BFRQ may include at least a portion of the information in Table 1.

[0177] Table 1

[0178]

[0179] As shown in Table 1, BFRQ indicates that a beam failure event occurs on F1, F2, F3, and F4. That is, F1, F2, F3, and F4 are all first frequency information. Among them, there is a first association relationship between F1, F2, F3, and F4. Assume that at least one BFDRS set is configured on F1, and no BFDRS set is configured on F2, F3, and F4. In addition, at least one NBIRS set is configured on F2, and at least one NBIRS set is also configured on F3, and no NBIRS set is configured on F1 and F4.

[0180] As shown in Table 1, the second information corresponding to F1 is 1, indicating that the beam failure event on F1 is determined by measuring the BFDRS on F1, and the second information corresponding to F2 is 0, indicating that the beam failure event on F2 is not determined based on the measurement of the BFDRS on F2. Similarly, the beam failure events of F3 and F4 are not determined based on the measurement of the BFDRS on F3 and F4. For this reason, further combined with the ninth information, it indicates that the beam failure events of F2, F3 and F4 are determined based on the measurement of the BFDRS on F1.

[0181] Furthermore, if the tenth information corresponding to F1, F2, F3 and F4 is the BFDRS set identified as 1 (BFDRSsetID1), it can be indicated that the BFDRS that detects the beam failure events on F1, F2, F3 and F4 belongs to the BFDRS set identified as 1. Since no BFDRS set is configured on F2, F3 and F4 and the beam failure events of F2, F3 and F4 are determined based on the beam failure event of F1, it can be determined that the BFDRS set indicated by the tenth information corresponding to F1, F2, F3 and F4 is the BFDRS set identified as 1 configured on F1. Assuming that the BFDRS set identified as 1 on F1 indicates TRP1, it can be determined that a beam link failure occurs in TRP1 on F1. Accordingly, it can be further determined that a beam link failure also occurs in TRP1 on F2, F3 and F4.

[0182] Furthermore, the eleventh information corresponding to F1, F2, F3 and F4 is 1, which means that the BFRQ contains new beams applied to F1, F2, F3 and F4.

[0183] Furthermore, the third information included in the BFRQ is NBIRSresourceID4 and NBIRSresourceID5, wherein NBIRSresourceID4 and NBIRSresourceID5 are NBIRS resource identifiers.

[0184] Among them, the twelfth information corresponding to the NBIRS resource with identification number 4 (NBIRSresourceID4) is F3, which means that NBIRSresourceID4 is the NBIRS resource with identification number 4 configured on F3, and the twelfth information corresponding to the NBIRS resource with identification number 5 (NBIRSresourceID5) is F2, which means that NBIRSresourceID5 is the NBIRS resource with identification number 5 configured on F2. In this way, the new beams indicated by NBIRSresourceID4 and NBIRSresourceID5 can be uniquely determined.

[0185] Furthermore, according to the fourth information corresponding to each piece of third information, it can be known that the new beam indicated by NBIRSresourceID4 is applied to F3, and NBIRSresourceID5 is applied to F1, F2 and F4.

[0186] Furthermore, since the fifth information corresponding to F3 is 0, it means that the new beam indicated by NBIRSresourceID4 is not determined based on the measurement of NBIRS on F3; the fifth information corresponding to F1 is 0, it means that the new beam indicated by NBIRSresourceID5 is not determined based on the measurement of NBIRS on F1; the fifth information corresponding to F2 is 1, it means that the new beam indicated by NBIRSresourceID5 is determined based on the measurement of NBIRS on F2; the fifth information corresponding to F4 is 0, it means that the new beam indicated by NBIRSresourceID5 is not determined based on the measurement of NBIRS on F4.

[0187] Further, for the frequency information whose fifth information is 0, the third frequency information can be determined in combination with the sixth information. Specifically, if the sixth information corresponding to F1, F3 and F4 is all F2, it means that the new beams on F1, F3 and F4 are determined by NBIRS measurement on F2.

[0188] Furthermore, the thirteenth information corresponding to NBIRSresourceID4 is the NBIRS set identified as 1 (NBIRSsetID1), wherein the NBIRS set identified as 1 can be the set to which the NBIRS resource identified as 4 configured on F3 belongs. Assuming that the NBIRS set identified as 1 indicates TRP1, it means that the new beam indicated by NBIRSresourceID4 can be applied to TRP1 of F3. Similarly, the thirteenth information corresponding to F2 is the NBIRS set identified as 1, wherein the NBIRS set identified as 1 is the set to which the NBIRS resource identified as 5 on F2 belongs, indicating that the new beam indicated by NBIRSresourceID5 can be applied to TRP1 of F2. Accordingly, it can be further determined that the new beam indicated by NBIRSresourceID5 can be applied to TRP1 of F1 and F4.

[0189] In other embodiments, the thirteenth information corresponding to NBIRSresourceID4 may be BFDRS setID1, and the thirteenth information corresponding to NBIRSresourceID5 may be BFDRS setID1. Among them, since the second frequency information F3 corresponding to NBIRSresourceID4 is not configured with a BFDRS set, the BFDRSsetID1 corresponding to NBIRSresourceID4 is the BFDRS set (BFDRS setID1) identified as 1 on F1 associated with F3. Similarly, the thirteenth information corresponding to NBIRSresourceID5 may be BFDRS setID1, and since the second frequency information F1 corresponding to NBIRSresourceID5 is configured with a BFDRS set, the BFDRS setID1 corresponding to NBIRSresourceID5 is the BFDRS set (BFDRS setID1) identified as 1 on F1.

[0190] In S21, BFRQ can be carried on at least one of the following:

[0191] (1) Uplink transmission resources in the default frequency information in the frequency information set;

[0192] The default frequency information may refer to the frequency information with the lowest position in the frequency domain, but is not limited thereto.

[0193] (2) uplink transmission resources in the primary cell in the frequency information set;

[0194] (3) uplink transmission resources in each frequency information in the frequency information set;

[0195] (4) uplink transmission resources in the default frequency information in the plurality of first frequency information;

[0196] That is, the BFR request may be carried in the uplink transmission resources in the default frequency information among the multiple first frequency information indicated by the BFR request.

[0197] (5) uplink transmission resources in each frequency information in the plurality of first frequency information;

[0198] That is, the BFR request may be carried in the uplink transmission resources in each first frequency information indicated by the BFR request.

[0199] It should be noted that the above-mentioned uplink transmission resources may refer to physical uplink control channel (Physical Uplink Control Channel, PUCCH) resources or physical uplink shared channel (Physical Uplink Shared Channel, PUSCH) resources or random access channel (Physical Random Access Channel, PRACH) resources, etc., but are not limited to these.

[0200] In S22, the network device sends a BFRR to the terminal, and the terminal receives the BFRR accordingly.

[0201] In a specific implementation, BFRR may include at least one of the following:

[0202] (1) Confirmation or denial of beam failure events on target frequency information;

[0203] Specifically, the network device may make a decision on the beam failure event on the target frequency information included in the BFRQ, and the decision result may be confirmation or denial.

[0204] More specifically, if the value of the second information corresponding to a certain first frequency information in the BFRQ is 0, the network device can judge the beam failure event of the first frequency information, and the BFRR can include the network device's confirmation or denial of the first frequency information.

[0205] (2) Confirmation or denial of the new beam reported by the terminal;

[0206] Specifically, the network device may make a decision on the new beam indicated in the BFRQ, and the decision result may be confirmation or denial. More specifically, the BFRR may include confirmation or denial of each new beam indicated by the BFRQ.

[0207] (3) seventh information, which is used to indicate a new beam;

[0208] Different from the third information in the BFRQ, the new beam indicated by the seventh information may be determined by the network device. The new beam indicated in the BFRR and the new beam indicated in the BFRQ may be the same or different. For example, if the network device denies a new beam indicated by the BFRQ, the network device may indicate a new beam, but is not limited thereto.

[0209] (4) Eighth information: The eighth information is used to indicate the frequency information to which the new beam is applied.

[0210] Specifically, the eighth information may correspond to the seventh information, and the eighth information is used to indicate the frequency information to which the new beam indicated by the seventh information is applied. In other words, the new beam indicated by the seventh information is applied to the frequency information indicated by the eighth information.

[0211] In a specific implementation, the frequency information indicated by the eighth information may be the second frequency information in the BFRQ, or the frequency information indicated by the eighth information may be other frequency information other than the second frequency information in the BFRQ.

[0212] Exemplarily, the network device may predict one or more new beams and the frequency information to which each new beam is applied based on the beam report. In a specific implementation, the network device may be configured with a second model, and the new beams included in the BFRR and the frequency information to which the new beams are applied may be predicted by the second model. The second model may be an AI model or an ML model.

[0213] (5) Fourteenth information, where the fourteenth information can be used to indicate the RS set corresponding to the new beam indicated by the seventh information.

[0214] Among them, the fourteenth information can be used to indicate the TRP to which the new beam indicated by the seventh information is applied, that is, the new beam indicated by the seventh information can be used to restore the beam link of the TRP indicated by the fourteenth information.

[0215] Specifically, the RS set indicated by the fourteenth information may be the NBIRS set to which the NBIRS resource used to indicate the new beam belongs. Specifically, the seventh information may be an NBIRS resource identifier, and the fourteenth information may be the NBIRS set to which the NBIRS resource indicated by the seventh information belongs.

[0216] As described above, the network device can configure one NBIRS set for each TRP respectively. Therefore, after the terminal receives the BFRR, it can determine the frequency information to which the new beam is applied according to the eighth information, and can determine that the new beam is applied to the TRP indicated by the fourteenth information on the frequency information indicated by the eighth information. Thus, the terminal can use the new beam indicated by the seventh information to restore the beam link between the TRP and the terminal. In addition, the terminal can also use the same new beam to restore the beam link of the same TRP on other associated frequency information.

[0217] Alternatively, the RS set indicated by the fourteenth information may be the BFDRS resource set corresponding to the new beam indicated by the seventh information. As described above, the network device may configure a BFDRS set and an NBIRS set for each TRP, and the BFDRS set and the NBIRS set are corresponding and may both be used to indicate the TRP. Among them, the corresponding BFDRS set and NBIRS set may be configured on the same TRP of the same frequency information, or the corresponding BFDRS set and NBIRS set may be respectively configured on the same TRP of the frequency information having a first association relationship. The fourteenth information may be used to indicate the TRP to which the new beam indicated by the seventh information is applied, and the BFDRS resource set indicated by the fourteenth information is the BFDRS set configured on the TRP.

[0218] After receiving the fourteenth information, the terminal can determine the TRP to which the new beam is applied according to the RS set indicated by the fourteenth information. For more information about the fourteenth information, please refer to the above description of the thirteenth information, which will not be repeated here.

[0219] Furthermore, BFRR may be carried in at least one of the following:

[0220] (1) Downlink transmission resources in the default frequency information in the frequency information set;

[0221] (2) Downlink transmission resources in the primary cell in the frequency information set;

[0222] (3) downlink transmission resources in each frequency information in the frequency information set;

[0223] (4) downlink transmission resources in the default frequency information in the plurality of first frequency information;

[0224] That is, BFRR can carry the downlink transmission resources in the default frequency information among the multiple first frequency information included in BFRQ.

[0225] (5) downlink transmission resources in each frequency information in the plurality of first frequency information;

[0226] That is, BFRR can carry the downlink transmission resources in each first frequency information included in BFRQ.

[0227] (6) Downlink transmission resources in the frequency information where the uplink transmission resources for transmitting BFRQ are located.

[0228] It should be noted that the above-mentioned downlink transmission resource may be a physical downlink control channel (Physical Downlink Control Channel, PDCCH) or a physical downlink shared channel (Physical Downlink Shared Channel, PDSCH).

[0229] Based on the above, the terminal can determine one or more new beams and the frequency information to which each new beam is applied.

[0230] In S23, the network device and the terminal may perform beam resetting.

[0231] Specifically, according to various indications in BFRQ and / or BFRR, the network device and the terminal may determine at least one new beam and the frequency information to which each new beam is applied, and further, the network device and the terminal switch the target signal on the frequency information to the new beam corresponding to the frequency information. The target signal may be at least one of the following: PDCCH, PDSCH, PUCCH, PUSCH, CSI-RS, Sounding Reference Signal (SRS), etc.

[0232] More specifically, by executing S21 and S22, the network device and the terminal determine one or more new beams, and use the new beam to perform beam reset on at least one frequency information to which each new beam is applied, so that the target signal on the frequency information to which the new beam is applied is switched to the new beam. Exemplarily, the network device and the terminal may perform beam reset after a preset time length after receiving the BFRR, where the preset time length may be 28 symbols.

[0233] Exemplarily, taking the first new beam as an example, the first new beam may be any one of at least one new beam determined by the terminal through the joint BFR. The terminal uses the QCL parameter to monitor the target signal on the frequency information applied to the first new beam, wherein the QCL parameter is a QCL parameter of the RS indicating the NBIRS resource identifier of the first new beam, or a QCL parameter of the TCI state indication corresponding to the first new beam.

[0234] For more information about beam resetting, please refer to the above related description, which will not be repeated here. It should be noted that the various embodiments provided in this article can be used alone or in combination with each other to achieve different technical effects.

[0235] It can be understood that, in a specific implementation, the above method can be implemented in the form of a software program, which runs in a processor integrated inside a chip or a chip module; or, the method can be implemented in hardware or a combination of hardware and software, such as using a dedicated chip or chip module, or using a dedicated chip or chip module in combination with a software program.

[0236] Reference Figure 3 , Figure 3 is a schematic diagram of the structure of a communication device in an embodiment of the present application, Figure 3 The communication device shown may be deployed in a terminal. For example, it may be deployed in the above-mentioned terminal. Figure 3 The apparatus shown may include:

[0237] A processing module 31 is used to perform a joint beam failure recovery BFR for reference frequency information and target frequency information;

[0238] The target frequency information and the reference frequency information belong to the same frequency set, and the target frequency information and the reference frequency information have a first association relationship;

[0239] Among them, the joint BFR for reference frequency information and target frequency information includes: the beam failure event on the target frequency information is determined according to the beam failure event on the reference frequency information, and / or, the target new beam is determined according to the reference new beam, the reference new beam is the new beam on the reference frequency information, and the target new beam is the new beam on the target frequency information.

[0240] Further, Figure 3 The communication device shown may also include a communication module ( Figure 3 Not shown), the communication module can be used to send BFRQ and / or receive BFRR, and the communication module can also be used to receive BFR configuration information.

[0241] Optionally, the communication module may be a communication interface, a transceiver, etc.

[0242] In the specific implementation, Figure 3 The communication device shown may correspond to a chip with a communication function in a terminal; or correspond to a chip or chip module with a communication function in a terminal, or correspond to a terminal.

[0243] Reference Figure 4 , Figure 4 is a schematic diagram of the structure of another communication device in an embodiment of the present application, Figure 4 The communication apparatus shown may be deployed in a network device. Figure 4 The apparatus shown may include:

[0244] The communication module 41 is used to send BFR configuration information, and the BFR configuration information is applied to a joint BFR for reference frequency information and target frequency information; wherein the target frequency information and the reference frequency information belong to the same frequency information set, and the target frequency information and the reference frequency information have an associated relationship; wherein the joint BFR for the reference frequency information and the target frequency information includes: a beam failure event on the target frequency information is determined based on a beam failure event on the reference frequency information, and / or a target new beam is determined based on a reference new beam, the reference new beam is a new beam on the reference frequency information, and the target new beam is a new beam on the target frequency information.

[0245] Optionally, the communication module 41 may be a communication interface, a transceiver, etc.

[0246] In the specific implementation, Figure 4 The communication device shown may correspond to a chip with a communication function in a network device; or correspond to a chip or chip module with a communication function in a network device, or correspond to a network device.

[0247] For more information about the working principle, working method, beneficial effects, etc. of the communication device in the embodiment of the present application, please refer to the relevant description of the method above, which will not be repeated here.

[0248] The embodiment of the present application also provides a computer-readable storage medium on which a computer program is stored, and when the computer program is run by a computer, the above method is executed. The storage medium may include a read-only memory (ROM), a random access memory (RAM), a disk or an optical disk, etc. The storage medium may also include a non-volatile memory or a non-transitory memory, etc.

[0249] The embodiment of the present application also provides a communication device, including a memory and a processor, wherein the memory stores a computer program that can be run on the processor, and the processor executes the steps of the above method when running the computer program. The communication device can be a terminal, or a network device, wherein the terminal includes but is not limited to terminal devices such as mobile phones, computers, and tablet computers. The terminal can be a mobile phone, a computer, a tablet computer, a vehicle-mounted terminal, a wearable device, etc., but is not limited thereto.

[0250] Reference Figure 5 , Figure 5 It is a schematic diagram of the hardware structure of a communication device in an embodiment of the present application. Figure 5The communication device shown may be the above-mentioned terminal or the above-mentioned network device. Figure 5 The communication device shown includes a memory 51, a processor 52 and a transceiver 53. The processor 52 is coupled to the memory 51 and the transceiver 53. The memory 51 may be located inside the communication device or outside the communication device. The memory 51, the processor 52 and the transceiver 53 may be connected via a communication bus. The transceiver 53 is used to communicate with other devices.

[0251] Optionally, the transceiver 53 may be a transmitter. The memory 51 stores a computer program that can be run on the processor 52. When the processor 52 runs the computer program, the transceiver 53 executes the steps in the beam failure method provided in the above embodiment.

[0252] It should be understood that in the embodiments of the present application, the processor may be a central processing unit (CPU), and the processor may also be other general-purpose processors, digital signal processors (DSP), application specific integrated circuits (ASIC), field programmable gate arrays (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc.

[0253] It should also be understood that the memory in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories. Among them, the non-volatile memory may be a ROM, a programmable ROM (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as static RAM (SRAM), dynamic random access memory (DRAM), synchronous DRAM (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link DRAM (SLDRAM), and direct memory bus random access memory (DR RAM).

[0254] The above embodiments may be implemented in whole or in part by software, hardware, firmware or any other combination thereof. When implemented using software, the above embodiments may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions or computer programs. When the computer instructions or computer programs are loaded or executed on a computer, the processes or functions described in the embodiments of the present application are generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer program may be stored in a computer-readable storage medium, or may be transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer program may be transmitted from one website, computer, server or data center to another website, computer, server or data center by wired or wireless means.

[0255] It should be understood that in the various embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0256] In the several embodiments provided in the present application, it should be understood that the disclosed methods, devices and systems can be implemented in other ways. For example, the device embodiments described above are merely schematic; for example, the division of the units is only a logical function division, and there may be other division methods in actual implementation; for example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0257] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0258] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may be physically included separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of hardware plus software functional units. For example, for each device or product applied to or integrated in a chip, each module / unit contained therein may be implemented in the form of hardware such as circuits, or at least some of the modules / units may be implemented in the form of software programs, which run on a processor integrated inside the chip, and the remaining (if any) modules / units may be implemented in the form of hardware such as circuits; for each device or product applied to or integrated in a chip module, each module / unit contained therein may be implemented in the form of hardware such as circuits, and different modules / units may be located in the same component (such as a chip, circuit module, etc.) or different components of the chip module, or at least some of the modules / units may be implemented in the form of software programs. The software programs may run on a processor integrated inside the chip, and the remaining (if any) modules / units may be implemented in the form of hardware such as circuits. The element can be implemented in the form of a software program, which runs on a processor integrated inside the chip module, and the remaining (if any) modules / units can be implemented in the form of hardware such as circuits; for various devices and products applied to or integrated in the terminal, the various modules / units contained therein can be implemented in the form of hardware such as circuits, and different modules / units can be located in the same component (for example, chip, circuit module, etc.) or in different components in the terminal, or, at least some modules / units can be implemented in the form of a software program, which runs on a processor integrated inside the terminal, and the remaining (if any) modules / units can be implemented in the form of hardware such as circuits.

[0259] The above-mentioned integrated unit implemented in the form of a software functional unit can be stored in a computer-readable storage medium. The above-mentioned software functional unit is stored in a storage medium, including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform some steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, ROM, random access memory RAM, disk or optical disk and other media that can store program codes.

[0260] It should be understood that the term "and / or" in this article is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article indicates that the associated objects before and after are in an "or" relationship.

[0261] The "plurality" appearing in the embodiments of the present application refers to two or more.

[0262] In this application, "equal to" can be used in conjunction with "less than" or "greater than", but not with both "less than" and "greater than". When "equal to" is used in conjunction with "less than", it is applicable to the technical solution adopted by "less than". When "equal to" is used in conjunction with "greater than", it is applicable to the technical solution adopted by "greater than".

[0263] The first, second, etc. descriptions appearing in the embodiments of the present application are only used for illustration and distinction of the description objects. There is no order, nor do they indicate any special limitation on the number of devices in the embodiments of the present application, and cannot constitute any limitation on the embodiments of the present application.

[0264] Although the present application is disclosed as above, the present application is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present application. Therefore, the protection scope of the present application shall be subject to the scope defined by the claims.

Claims

1. A beam failure recovery (BFR) method, characterized in that: The method comprises: Performing a joint BFR for reference frequency information and target frequency information, wherein the target frequency information and the reference frequency information belong to the same frequency information set, and the target frequency information and the reference frequency information have a first association relationship; The joint BFR for the reference frequency information and the target frequency information includes: The beam failure event of the target frequency information is determined based on the beam failure event of the reference frequency information, and / or the target new beam is determined based on the reference new beam, the reference new beam is the new beam of the reference frequency information, and the target new beam is the new beam of the target frequency information.

2. The BFR method according to claim 1, characterized in that Before performing the joint BFR for the reference frequency information and the target frequency information, the method further includes: Association indication information is received, where the association indication information is used to indicate a first association relationship between the target frequency information and the reference frequency information.

3. The BFR method according to claim 1, characterized in that The target frequency information satisfies at least one of the following: A first beam failure detection reference signal BFDRS resource is configured on the target frequency information, and the first BFDRS resource and a second BFDRS resource configured on the reference frequency information have a second association relationship; The target frequency information is configured with a first new beam identification reference signal NBIRS resource, and the first NBIRS resource and the second NBIRS resource configured on the reference frequency information have the second association relationship.

4. The BFR method according to claim 1, characterized in that Performing a joint BFR for reference frequency information and target frequency information includes: Send a BFR request, where the BFR request includes at least one of the following: first information, where the first information is used to indicate first frequency information, where the first frequency information refers to frequency information at which a beam failure event occurs; second information, where the second information is used to indicate whether a beam failure event on the first frequency information is determined based on a measurement of a BFDRS on the first frequency information; Ninth information, where the ninth information is used to indicate eighth frequency information, where a beam failure event of the first frequency information is determined based on a measurement of a BFDRS on the eighth frequency information; third information, where the third information is used to indicate a new beam; fourth information, where the fourth information is used to indicate second frequency information, where the second frequency information is frequency information to which the new beam is applied; fifth information, where the fifth information is used to indicate whether the new beam is determined based on measurement of the NBIRS on the second frequency information; The sixth information is used to indicate the third frequency information, and the new beam is determined based on the measurement of the NBIRS on the third frequency information.

5. The BFR method according to claim 1, characterized in that Performing a joint BFR for reference frequency information and target frequency information includes: Receive a BFR response, the BFR response including at least one of the following: a denial of a beam failure event on the target frequency information; Confirmation or denial of the new beam reported by the terminal; seventh information, where the seventh information is used to indicate a new beam; The eighth information is used to indicate the frequency information to which the new beam is applied.

6. The BFR method according to claim 1, characterized in that Performing joint BFR on the reference frequency information and the target frequency information includes: Determining, according to the beam failure event on the reference frequency information, that a beam failure event occurs on the target frequency information; The NBIRS on the target frequency information is measured to determine the target new beam.

7. The BFR method according to claim 1, characterized in that Executing a joint BFR for the reference frequency information and the target frequency information includes: Measuring the BFDRS on the target frequency information to determine that a beam failure event occurs on the target frequency; The target new beam is determined according to the reference new beam, wherein the reference new beam is determined according to the measurement of NBIRS on the reference frequency information.

8. The BFR method according to claim 1, characterized in that The target new beam and the reference new beam satisfy at least one of the following: The reference new beam and the target new beam are both beams indicated by a third NBIRS resource identifier, and the third NBIRS resource is configured on the reference frequency information; The reference new beam is a beam indicated by a fourth NBIRS resource identifier, and the target new beam is a beam indicated by a fifth NBIRS resource identifier, wherein the fourth NBIRS resource is configured on the reference frequency information, the fifth NBIRS resource is configured on the target frequency information, and the fourth NBIRS resource and the fifth NBIRS resource have a second association relationship; The reference new beam corresponds to a first transmission configuration indication TCI state, and the target new beam corresponds to a second TCI state, wherein the first TCI state and the second TCI state are the same or have a third association relationship.

9. The BFR method according to claim 8, characterized in that Performing joint BFR for the reference frequency information and the target frequency information includes at least one of the following: Transmitting a target signal on the reference frequency information using a first parameter on the reference frequency information; Transmitting a target signal on the target frequency information using a second parameter on the target frequency information; The first parameter and the second parameter are both QCL parameters of the third NBIRS resource; or, the first parameter is the QCL parameter of the fourth NBIRS resource, and the second parameter is the QCL parameter of the fifth NBIRS resource; or, the first parameter is the QCL parameter indicated by the first TCI state, and the second parameter is the QCL parameter indicated by the second TCI state.

10. A beam failure recovery (BFR) method, characterized in that: The method comprises: Send BFR configuration information, wherein the BFR configuration information is applied to a joint BFR for reference frequency information and target frequency information, wherein the target frequency information and the reference frequency information belong to the same frequency information set, and the target frequency information and the reference frequency information are associated with each other; wherein the joint BFR for the reference frequency information and the target frequency information includes: a beam failure event on the target frequency information is determined based on a beam failure event on the reference frequency information, and / or a target new beam is determined based on a reference new beam, wherein the reference new beam is a new beam on the reference frequency information, and the target new beam is a new beam on the target frequency information.

11. The BFR method according to claim 10, characterized in that The BFR configuration information includes at least one of the following: Configuration information of a second beam failure detection reference signal BFDRS resource on the reference frequency information; Configuration information of a first BFDRS resource on the target frequency information, and the first BFDRS resource and the second BFDRS resource have a second association relationship; Configuration information of a second new beam identification reference signal NBIRS resource on the reference frequency information; configuration information of a first NBIRS resource on the target frequency information, and the first NBIRS resource and the second NBIRS resource have a second association relationship.

12. The BFR method according to claim 10, characterized in that The method further comprises: A BFR request is received, wherein the BFR request includes at least one of the following: first information, where the first information is used to indicate first frequency information, where the first frequency information refers to frequency information at which a beam failure event occurs; second information, where the second information is used to indicate whether a beam failure event on the first frequency information is determined based on a measurement of a BFDRS on the first frequency information; Ninth information, where the ninth information is used to indicate eighth frequency information, where a beam failure event of the first frequency information is determined based on a measurement of a BFDRS on the eighth frequency information; third information, where the third information is used to indicate a new beam; fourth information, where the fourth information is used to indicate second frequency information, where the second frequency information is frequency information to which the new beam is applied; fifth information, where the fifth information is used to indicate whether the new beam is determined based on measurement of the NBIRS on the second frequency information; The sixth information is used to indicate the third frequency information, and the new beam is determined based on the measurement of the NBIRS on the third frequency information.

13. The BFR method according to claim 10, characterized in that The method further comprises: Sending a BFR response, the BFR response including at least one of the following: a denial of a beam failure event on the target frequency information; Confirmation or denial of the new beam reported by the terminal; seventh information, the eighth information is used to indicate a new beam; The eighth information, the ninth information is used to indicate the frequency information to which the new beam is applied.

14. The BFR method according to claim 10, characterized in that The target new beam and the reference new beam satisfy at least one of the following: The reference new beam and the target new beam are both beams indicated by a third NBIRS resource identifier, and the third NBIRS resource is configured on the reference frequency information; The reference new beam is a beam indicated by a fourth NBIRS resource identifier, and the target new beam is a beam indicated by a fifth NBIRS resource identifier, wherein the fourth NBIRS resource is configured on the reference frequency information, the fifth NBIRS resource is configured on the target frequency information, and the fourth NBIRS resource and the fifth NBIRS resource have a second association relationship; The reference new beam corresponds to a first transmission configuration indication TCI state, and the target new beam corresponds to a second TCI state, wherein the first TCI state and the second TCI state are the same or have a third association relationship.

15. The BFR method according to claim 14, characterized in that The method further comprises at least one of the following: Transmitting a target signal on the reference frequency information using a first parameter on the reference frequency information; Transmitting a target signal on the target frequency information using a second parameter on the target frequency information; The first parameter and the second parameter are both QCL parameters of the third NBIRS resource; or, the first parameter is the QCL parameter of the fourth NBIRS resource, and the second parameter is the QCL parameter of the fifth NBIRS resource; or, the first parameter is the QCL parameter indicated by the first TCI state, and the second parameter is the QCL parameter indicated by the second TCI state.

16. A communication device, characterized in that: The device comprises: A processing module, configured to perform a joint beam failure recovery (BFR) for reference frequency information and target frequency information; The target frequency information and the reference frequency information belong to the same frequency set, and the target frequency information and the reference frequency information have a first association relationship; Among them, the joint BFR for reference frequency information and target frequency information includes: the beam failure event on the target frequency information is determined according to the beam failure event on the reference frequency information, and / or, the target new beam is determined according to the reference new beam, the reference new beam is the new beam on the reference frequency information, and the target new beam is the new beam on the target frequency information.

17. A communication device, characterized in that: The communication device comprises: A communication module, configured to send BFR configuration information, wherein the BFR configuration information is applied to a joint BFR for reference frequency information and target frequency information; The target frequency information and the reference frequency information belong to the same frequency information set, and the target frequency information and the reference frequency information have an associated relationship; Among them, the joint BFR for reference frequency information and target frequency information includes: the beam failure event on the target frequency information is determined according to the beam failure event on the reference frequency information, and / or, the target new beam is determined according to the reference new beam, the reference new beam is the new beam on the reference frequency information, and the target new beam is the new beam on the target frequency information.

18. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the beam failure recovery method according to any one of claims 1 to 15 is executed.

19. A communication device, comprising a memory and a processor, wherein the memory stores a computer program that can be run on the processor, characterized in that: When the processor runs the computer program, the processor performs the steps of the beam failure recovery method according to any one of claims 1 to 8.

20. A communication device, comprising a memory and a processor, wherein the memory stores a computer program that can be run on the processor, characterized in that: When the processor runs the computer program, the processor performs the steps of the beam failure recovery method according to any one of claims 9 to 15.

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