WO2023184431A1

WO2023184431A1 - Beam failure recovery method, terminal device, and network device

Info

Publication number: WO2023184431A1
Application number: PCT/CN2022/084649
Authority: WO
Inventors: 曹建飞
Original assignee: Oppo广东移动通信有限公司
Priority date: 2022-03-31
Filing date: 2022-03-31
Publication date: 2023-10-05

Abstract

The present application provides a beam failure recovery method, a terminal device, and a network device. The beam failure recovery method comprises: a terminal device determines at least one of a first reference signal of a first-type channel/signal and a second reference signal of a second-type channel/signal; the terminal device performs beam failure recovery on the first-type channel/signal by using the first reference signal of the first-type channel/signal; and/or the terminal device performs beam failure recovery on the second-type channel/signal by using the second reference signal of the second-type channel/signal. According to the embodiments of the present application, flexible beam failure recovery can be achieved.

Description

Beam failure recovery method, terminal equipment and network equipment

Technical field

The present application relates to the field of communications, and more specifically, to a beam failure recovery method, terminal equipment and network equipment.

Background technique

Beam Failure Recovery (BFR, Beam Failure Recovery) can also be called beam recovery. The BFR mechanism has been limited to varying degrees in different versions of New Radio (NR, New Radio). It can only be implemented based on cells or transmission reception points (TRP). , Transmission Reception Point) is the basic unit of beam failure recovery. This beam failure recovery mechanism is not flexible enough.

Contents of the invention

Embodiments of the present application provide a beam failure recovery method, terminal equipment and network equipment, which can realize flexible beam failure recovery.

The embodiment of this application provides a beam failure recovery method, which includes:

The terminal equipment determines at least one of a first reference signal for a first type of channel/signal and a second reference signal for a second type of channel/signal;

The terminal equipment uses the first reference signal of the first type channel/signal to perform beam failure recovery on the first type channel/signal; and/or the terminal equipment uses the second reference signal of the second type channel/signal to perform beam failure recovery on the second type channel/signal. The signal undergoes beam failure recovery.

The network device configures at least one of the first reference signal of the first type of channel/signal and the second reference signal of the second type of channel/signal for the terminal equipment, and the first reference signal of the first type of channel/signal and the second type of channel/signal. The second reference signal of the channel/signal is used to perform beam failure recovery on the first type channel/signal and the second type channel/signal respectively.

An embodiment of the present application provides a terminal device, including:

A determining module, configured to determine at least one of a first reference signal for a first type of channel/signal and a second reference signal for a second type of channel/signal;

The beam failure recovery module is used to perform beam failure recovery on the first type channel/signal using the first reference signal of the first type channel/signal; and/or, the terminal equipment uses the second reference signal pair of the second type channel/signal. The second type of channel/signal performs beam failure recovery.

This embodiment of the present application provides a network device, including:

A configuration module configured to configure at least one of the first reference signal of the first type of channel/signal and the second reference signal of the second type of channel/signal for the terminal equipment, the first reference signal of the first type of channel/signal and The second reference signal of the second type channel/signal is used to perform beam failure recovery on the first type channel/signal and the second type channel/signal respectively.

An embodiment of the present application provides a communication device, including a processor and a memory. The memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory, so that the communication device performs the above-mentioned beam failure recovery method.

An embodiment of the present application provides a chip for implementing the above communication method. Specifically, the chip includes: a processor, configured to call and run a computer program from a memory, so that the device installed with the chip executes the above-mentioned beam failure recovery method.

Embodiments of the present application provide a computer-readable storage medium for storing a computer program. When the computer program is run by a device, it causes the device to perform the above communication method.

An embodiment of the present application provides a computer program product, including computer program instructions, which cause the computer to execute the above-mentioned beam failure recovery method.

An embodiment of the present application provides a computer program that, when run on a computer, causes the computer to perform the above beam failure recovery method.

The embodiment of the present application can provide a flexible beam failure recovery method.

Description of drawings

Figure 1 is a schematic diagram of an application scenario according to an embodiment of the present application.

Figure 2 is a flow chart of the implementation of the beam failure recovery mechanism.

Figure 3 is a schematic diagram of inter-cell beam measurement and reporting.

Figure 4 is a schematic diagram of the division of different channels by inter-cell beam management.

Figure 5 is a schematic flow chart of a beam failure recovery method 500 according to an embodiment of the present application.

Figure 6 is a BFD schematic diagram of non-UE-specific channels/signals and UE-specific channels/signals according to an embodiment of the present application.

Figure 7 is a schematic diagram of the format of MAC CE used to activate BFD RS according to an embodiment of the present application.

Figure 8 is a schematic diagram of the corresponding relationship between BFD RS set and NBI RS set according to an embodiment of the present application.

Figure 9 is a schematic diagram of the format of MAC CE used to update NBI RS according to an embodiment of the present application.

Figure 10 is a schematic diagram of the format of MAC CE used to update BFD RS and NBI RS according to an embodiment of the present application.

Figure 11 is a schematic diagram of PRACH and PUCCH-SR used to obtain uplink resources according to an embodiment of the present application.

Figure 12 is a schematic flow chart of a beam failure recovery method 1200 according to an embodiment of the present application.

Figure 13 is a schematic block diagram of a terminal device 1300 according to an embodiment of the present application.

Figure 14 is a schematic block diagram of a network device 1400 according to an embodiment of the present application.

Figure 15 is a schematic structural diagram of a communication device 1500 according to an embodiment of the present application.

Figure 16 is a schematic structural diagram of a chip 1600 according to an embodiment of the present application.

Figure 17 is a schematic block diagram of a communication system 1700 according to an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.

The technical solutions of the embodiments of the present application can be applied to various communication systems, such as: Global System of Mobile communication (GSM) system, Code Division Multiple Access (Code Division Multiple Access, CDMA) system, broadband code division multiple access (Wideband Code Division Multiple Access, WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, Advanced long term evolution (LTE-A) system , New Radio (NR) system, evolution system of NR system, LTE (LTE-based access to unlicensed spectrum, LTE-U) system on unlicensed spectrum, NR (NR-based access to unlicensed spectrum) unlicensed spectrum (NR-U) system, Non-Terrestrial Networks (NTN) system, Universal Mobile Telecommunication System (UMTS), Wireless Local Area Networks (WLAN), wireless fidelity (Wireless Fidelity, WiFi), fifth-generation communication (5th-Generation, 5G) system or other communication systems, etc.

Generally speaking, traditional communication systems support a limited number of connections and are easy to implement. However, with the development of communication technology, mobile communication systems will not only support traditional communication, but also support, for example, Device to Device, D2D) communication, Machine to Machine (M2M) communication, Machine Type Communication (MTC), Vehicle to Vehicle (V2V) communication, or Vehicle to everything (V2X) communication, etc. , the embodiments of the present application can also be applied to these communication systems.

In a possible implementation manner, the communication system in the embodiment of the present application can be applied to a carrier aggregation (Carrier Aggregation, CA) scenario, a dual connectivity (Dual Connectivity, DC) scenario, or an independent ( Standalone, SA) network deployment scenario.

In a possible implementation, the communication system in the embodiment of the present application can be applied to unlicensed spectrum, where the unlicensed spectrum can also be considered as shared spectrum; or, the communication system in the embodiment of the present application can also be applied to Licensed spectrum, where licensed spectrum can also be considered as unshared spectrum.

The embodiments of this application describe various embodiments in combination with network equipment and terminal equipment. The terminal equipment may also be called user equipment (User Equipment, UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication equipment, user agent or user device, etc.

The terminal device can be a station (ST) in the WLAN, a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, or a personal digital processing unit. (Personal Digital Assistant, PDA) devices, handheld devices with wireless communication capabilities, computing devices or other processing devices connected to wireless modems, vehicle-mounted devices, wearable devices, next-generation communication systems such as terminal devices in NR networks, or in the future Terminal equipment in the evolved Public Land Mobile Network (PLMN) network, etc.

In the embodiment of this application, the terminal device can be deployed on land, including indoor or outdoor, handheld, wearable or vehicle-mounted; it can also be deployed on water (such as ships, etc.); it can also be deployed in the air (such as aircraft, balloons and satellites). superior).

In the embodiment of this application, the terminal device may be a mobile phone (Mobile Phone), a tablet computer (Pad), a computer with a wireless transceiver function, a virtual reality (Virtual Reality, VR) terminal device, or an augmented reality (Augmented Reality, AR) terminal. Equipment, wireless terminal equipment in industrial control, wireless terminal equipment in self-driving, wireless terminal equipment in remote medical, wireless terminal equipment in smart grid , wireless terminal equipment in transportation safety, wireless terminal equipment in smart city, or wireless terminal equipment in smart home, etc.

As an example and not a limitation, in this embodiment of the present application, the terminal device may also be a wearable device. Wearable devices can also be called wearable smart devices. It is a general term for applying wearable technology to intelligently design daily wear and develop wearable devices, such as glasses, gloves, watches, clothing and shoes, etc. A wearable device is a portable device that is worn directly on the body or integrated into the user's clothing or accessories. Wearable devices are not just hardware devices, but also achieve powerful functions through software support, data interaction, and cloud interaction. Broadly defined wearable smart devices include full-featured, large-sized devices that can achieve complete or partial functions without relying on smartphones, such as smart watches or smart glasses, and those that only focus on a certain type of application function and need to cooperate with other devices such as smartphones. Use, such as various types of smart bracelets, smart jewelry, etc. for physical sign monitoring.

In the embodiment of this application, the network device may be a device used to communicate with mobile devices. The network device may be an access point (Access Point, AP) in WLAN, or a base station (Base Transceiver Station, BTS) in GSM or CDMA. , or it can be a base station (NodeB, NB) in WCDMA, or an evolutionary base station (Evolutional Node B, eNB or eNodeB) in LTE, or a relay station or access point, or a vehicle-mounted device, a wearable device, and an NR network network equipment (gNB) or network equipment in the future evolved PLMN network or network equipment in the NTN network, etc.

As an example and not a limitation, in the embodiment of the present application, the network device may have mobile characteristics, for example, the network device may be a mobile device. Optionally, the network device can be a satellite or balloon station. For example, the satellite can be a low earth orbit (LEO) satellite, a medium earth orbit (MEO) satellite, a geosynchronous orbit (geostationary earth orbit, GEO) satellite, a high elliptical orbit (High Elliptical Orbit, HEO) satellite ) satellite, etc. Optionally, the network device may also be a base station installed on land, water, etc.

In this embodiment of the present application, network equipment can provide services for a cell, and terminal equipment communicates with the network equipment through transmission resources (for example, frequency domain resources, or spectrum resources) used by the cell. The cell can be a network equipment ( For example, the cell corresponding to the base station), the cell can belong to the macro base station, or it can belong to the base station corresponding to the small cell (Small cell). The small cell here can include: urban cell (Metro cell), micro cell (Micro cell), pico cell ( Pico cell), femto cell (Femto cell), etc. These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-rate data transmission services.

Figure 1 illustrates a communication system 100. The communication system includes a network device 110 and two terminal devices 120. In a possible implementation, the communication system 100 may include multiple network devices 110 , and the coverage of each network device 110 may include other numbers of terminal devices 120 , which is not limited in this embodiment of the present application.

In a possible implementation, the communication system 100 may also include other network entities such as a Mobility Management Entity (MME), an Access and Mobility Management Function (AMF), etc. The application examples do not limit this.

Among them, network equipment may include access network equipment and core network equipment. That is, the wireless communication system also includes multiple core networks used to communicate with access network equipment. The access network equipment can be a long-term evolution (long-term evolution, LTE) system, a next-generation (mobile communication system) (next radio, NR) system or authorized auxiliary access long-term evolution (LAA- Evolutionary base station (evolutional node B, abbreviated as eNB or e-NodeB) macro base station, micro base station (also known as "small base station"), pico base station, access point (access point, AP), Transmission point (TP) or new generation base station (new generation Node B, gNodeB), etc.

It should be understood that in the embodiments of this application, devices with communication functions in the network/system may be called communication devices. Taking the communication system shown in Figure 1 as an example, the communication equipment may include network equipment and terminal equipment with communication functions. The network equipment and terminal equipment may be specific equipment in the embodiments of the present application, which will not be described again here; the communication equipment also It may include other devices in the communication system, such as network controllers, mobility management entities and other network entities, which are not limited in the embodiments of this application.

It should be understood that the terms "system" and "network" are often used interchangeably herein. The term "and/or" in this article is just an association relationship that describes related objects, indicating that three relationships can exist. For example, A and/or B can mean: A exists alone, A and B exist simultaneously, and they exist alone. B these three situations. In addition, the character "/" in this article generally indicates that the related objects are an "or" relationship.

It should be understood that the "instruction" mentioned in the embodiments of this application may be a direct instruction, an indirect instruction, or an association relationship. For example, A indicates B, which can mean that A directly indicates B, for example, B can be obtained through A; it can also mean that A indirectly indicates B, for example, A indicates C, and B can be obtained through C; it can also mean that there is an association between A and B. relation.

In the description of the embodiments of this application, the term "correspondence" can mean that there is a direct correspondence or indirect correspondence between the two, it can also mean that there is an associated relationship between the two, or it can mean indicating and being instructed, configuration and being. Configuration and other relationships.

In order to facilitate understanding of the technical solutions of the embodiments of the present application, the relevant technologies of the embodiments of the present application are described below. The following related technologies can be optionally combined with the technical solutions of the embodiments of the present application, and they all belong to the embodiments of the present application. protected range.

1. Beam failure recovery mechanism

Currently, in the process of technology evolution, beam recovery mechanisms are supported in different scenarios. Specifically, the first version of NR, that is, Rel.15, supports the beam failure recovery mechanism of the primary cell (such as (PCell, Primary Cell) or primary and secondary cells (PSCell, Primary Secondary Cell)); in Rel.16 It supports the beam recovery mechanism of the secondary cell (SCell, Secondary Cell). In Rel.17, SpCell or SCell TRP-specific beam failure recovery mechanism is supported.

Figure 2 is a flow chart of the implementation of the beam failure recovery mechanism. As shown in Figure 2, the general steps of the beam failure recovery mechanism can be divided into the following steps. The first step is the detection of beam failure and the discovery of new beams (NBI, New Beam Identification); the second step is the reporting of beam failure (BFRQ, Beam Failure Recovery Request); the third step is the beam failure recovery response (BFRR, Beam Failure Recovery Response); the fourth step is the recovery of the UE's beam and other corresponding parameters.

2. Unified Transmission Configuration Indication state (Unified TCI state, Unified Transmission Configuration Indication state)

In the standardization progress of the 3rd Generation Partnership Project (3GPP, 3rd Generation Partnership Project), a redefinition of the Transmission Configuration Indication (TCI, Transmission Configuration Indication) state (state) is proposed, that is, the Unified TCI state (Unified TCI state). It can represent the quasi-co-location (QCL, Qausi-Co-Location) relationship between different reference signals. For example, the UE can learn from the received channel state information-reference signal (CSI-RS, Channel State Information-Reference Signal) how to receive the reference signal that has not yet been transmitted, such as the physical downlink control channel (PDCCH, Physical Downlink Control Channel) QCL relationship between demodulation reference signal (DMRS, Demodulatin Reference Signal) or physical downlink shared channel (PDSCH, Physical Downlink Shared Channel) DMRS.

As the name of unified TCI state suggests, "unification" here has many layers of meaning. The first level of meaning is that it unifies the uplink and downlink beam indication mechanisms. The second level of meaning is the unification of beams between different channels. For example, the UE believes that the downlink PDCCH (UE exclusive) and PDSCH (UE exclusive) are unified into the same beam for transmission; The UE uses the same beam to transmit the physical uplink control channel (PUCCH, Physical Uplink Control Channel) and the physical uplink shared channel (PUSCH, Physical Uplink Shared Channel). In order to better understand the meaning of unified TCI state, you may wish to refer to its RRC parameter configuration. It can be seen from the RRC parameter configuration of unified TCI state that the QCL source reference signal contained in unified TCI state can come from other cells outside the serving cell. And it can have a different physical cell identity (PCI, Physical Cell Identity) from this cell, which is the concept of inter-cell beam management (inter-cell beam management) discussed by 3GPP in the standardization process.

Specifically, the inter-cell beam management function means that the UE can measure the synchronization signal block (SSB, Synchronization Signal and PBCH Block) of neighboring cells. The PCI associated with the SSB is different from the PCI of the UE's current serving cell. Subsequently, the UE notifies the network (NW, NetworkWork) of the SSB index (index) of the neighboring cell with better beam quality through beam reporting. The beam quality evaluation here can be carried out through Layer 1-Reference Signal Receive Power (L1-RSRP, Layer 1-Reference Signal Receive Power). When the NW agrees to the UE using the beam of the neighboring cell, it can activate the unified TCI state containing the SSB of the neighboring cell for the UE, so that the UE can establish uplink and downlink beam links with the neighboring cell more quickly, and perform uplink and downlink channel and signal transmission. Figure 3 is a schematic diagram of inter-cell beam measurement and reporting. As shown in Figure 3, the UE can measure and report SSB information from a cell or TRP to the NW. The cell or TRP has a different PCI from the serving cell.

Essentially, NW instructs the UE to use the TRP of the neighboring cell in the current serving cell for uplink and downlink beam-based transmission based on the UE's measurement and reporting of neighboring cell beams. Although the UE's beam is established with the TRP of the neighboring cell, the UE does not perform cell switching.

For non-UE-specific channels, such as the control resource set (CORESET, Control Resource Set) associated with CSS Type0/0A/1/2 and its scheduled PDSCH, the UE still needs to monitor in the serving cell. Figure 4 is a schematic diagram of the division of different channels by inter-cell beam management. As shown in Figure 4, 3GPP defines four types of CORESET.

·CORESET A: It is only associated with the UE-dedicated Search Space (USS, UE-dedicated Search Space) and the common search space (CSS, Common Search Space) type 3 (Type3) search space.

·CORESET B: It is only associated with other public search spaces except Typ3

·CORESET C: It can be associated with the search space of USS and other public search spaces except Type3.

·CORESET#0: It is similar to CORESET C in the protocol and can be associated with the USS search space or other public search spaces except Typ3.

The Type3 CSS is taken out from the public search space here because it is configured after the UE enters the RRC connection state and requires a public RNTI for descrambling. After the UE accesses, the NW often Type3 CSS is used as USS.

Judging from the current progress of standardization, for beam management between cells using unified TCI state, the beams of CORESET#0, CORESET B and CORESET C can only come from the serving cell. These CORESETs and the channels scheduled by these CORESETs can be called It is a channel or signal that is not exclusive to UE. Only CORESET A and its scheduled signals or channels are considered UE-specific channels or signals, and it can use beams from another cell or TRP (different from the PCI of the serving cell).

For the UE-specific channel, the UE can receive CSI-RS, PDCCH and PDSCH from another cell or TRP (with a different PCI from the original serving cell) or send sounding reference signal (SRS, Sounding Reference Signal), PUCCH and PUSCH. In this way, the UE has to maintain beam links with at least 2 cells or 2 TRPs. Once any beam link fails, the original BFR mechanism cannot meet the inter-cell beam failure recovery function.

In the inter-cell beam management scenario, part of the UE's channels and reference signals need to be retained in the original serving cell for transmission, while other parts of the channels can be migrated to neighboring cells for transmission. For different TRPs operating in the millimeter wave frequency band, different beam failure recovery processes are required to ensure that beam-based links are in normal working condition. For this purpose, a channel-dependent beam failure recovery process is designed in this case. The UE can select appropriate beams for the separated channels to recover.

However, the beam recovery mechanisms described above are all performed within the UE's serving cell. When the UE moves to the edge of the serving cell, the NW is likely to perform inter-cell beam operations on it, causing different channels of the UE to work in different cells or TRPs. Currently, the BFR mechanism in this scenario is still not defined. The UE will not perform a channel-based beam recovery mechanism, but will only perform BFR with the cell or TRP as the basic unit.

Figure 5 is a schematic flow chart of a beam failure recovery method 500 according to an embodiment of the present application. This method can optionally be applied to the system shown in Figure 1, but is not limited thereto. The method includes at least part of the following.

S510. The terminal device determines at least one of the first reference signal of the first type of channel/signal and the second reference signal of the second type of channel/signal;

S520. The terminal equipment uses the first reference signal of the first type channel/signal to perform beam failure recovery on the first type channel/signal; and/or, the terminal equipment uses the second reference signal of the second type channel/signal to perform beam failure recovery on the first type channel/signal. Class 2 channels/signals perform beam failure recovery.

In the embodiment of this application, the first type of channel/signal may be a non-UE exclusive channel/signal of the terminal device or a UE exclusive channel/signal, and the second type of channel/signal may be a UE exclusive channel/signal of the terminal equipment or a non-UE specific channel/signal. Dedicated channel/signal.

For example, the first type of channel/signal may be a combination of non-UE-specific channels, that is, the PDCCH associated with the common search space and its scheduled PDSCH. It can also be other channel combinations determined by the NW or the UE, such as PDCCH and its scheduled PUSCH, CSI-RS and PDSCH, PUCCH and PUSCH, PRACH and PUSCH, etc., or multiple different combinations or a single channel. Similarly, the second type of channel can also be extended to a variety of different combinations, such as channel combinations associated with a UE-specific search space, or even a single channel.

In this embodiment of the present application, the first reference signal may include at least one of a BFD reference signal (RS, Reference Signal) and an NBI RS; the second reference signal may include at least one of a BFD RS and an NBI RS.

It can be seen that the embodiment of the present application uses the corresponding first reference signal/second reference signal for the first type channel/signal and the second type channel/signal respectively to perform beam failure recovery, and can achieve beam failure recovery in units of channels. Provides a more flexible beam failure recovery mechanism.

In some implementations, the first type of channels/signals (such as non-UE-specific channels) resides in the original serving cell, and the second type of channels/signals (such as non-UE-specific channels) may reside in the original serving cell with a different PCI. cell or TRP.

The beam failure recovery process (i.e., channel-based beam failure recovery process) proposed by the embodiment of this application can at least include the following steps: first, the explicit or implicit configuration process of BFD RS, and the corresponding configuration of NBI RS process. Afterwards, when the UE detects beam failure, it sends a beam failure recovery request (BFRQ), such as a beam failure recovery request based on the RACH process or based on PUCCH-Scheduling Request (SR, Scheduling Request). After receiving the BFRQ from the UE, the NW responds to the UE's request and sends a beam failure recovery response (BFRR). Finally, the UE restores part of the channel/signal to the new beam (if the UE finds and reports a qualified beam).

Specific examples are given below to introduce each of the above steps.

First, explicit BFD RS configuration, activation and update

In the embodiment of this application, BFD RS can be configured for the UE's serving cell and multiple neighboring cells with different PCIs.

For example, the NW can configure BFD RS for multiple neighboring cells with different PCIs of the UE through RRC signaling, and each PCI can correspond to 1, 2, or multiple BFD RS groups (sets). Figure 6 is a BFD schematic diagram of non-UE-specific channels/signals and UE-specific channels/signals according to an embodiment of the present application. As shown in Figure 6, the first type of channels/signals of the UE (such as non-UE-specific channels) are maintained at In the serving cell of PCI#1, configure a BFD RS set for the serving cell of PCI#1. The BFD RS set performs BFD detection on the first type of channels/signals (such as non-UE exclusive channels); the second type of UE Channels/signals (such as UE-specific channels) are activated in the PCI#2 cell. Configure a BFD RS set for the PCI#2 serving cell/TRP. The BFD RS set is suitable for the second type of channels/signals (such as UE-specific channels). channel) to perform BFD detection.

It should be noted that for the serving cell or neighboring cells, if the cell adopts the single TRP (single TRP) mechanism, you can configure a BFD RS set for the cell; if the cell adopts the multi-TRP (multi-TRP) mechanism, you can configure the BFD RS set for the cell. The cell is configured with multiple (such as 2) BFD RS sets, where each TRP corresponds to one BFD RS set.

When the neighboring cell is in an inactive state for a specific UE, the UE only stores the BFD RS configured by these RRCs and does not perform corresponding BFD measurements. Only when these neighboring cells are in an active state for the UE, the UE will measure the BFD RS corresponding to these neighboring cells.

For example, in one implementation, the terminal device determines the second reference signal of the second type of channel/signal may include:

When the first neighboring cell/TRP is in the active state, the terminal equipment determines the BFD RS of the first neighboring cell/TRP, and determines the BFD RS of the first neighboring cell/TRP as the BFD RS of the second type channel/signal.

Among them, the terminal device can determine the BFD RS of the first neighboring cell/TRP according to the BFD RS configured by the network device for each neighboring cell/TRP.

Before the terminal equipment determines the second reference signal of the second type channel/signal, it may further include: the terminal equipment receives RRC signaling, which includes the BFD RS configured by the network equipment for each neighboring cell/TRP.

In some implementations, the BFD RS may be an SSB resource or a CSI-RS resource.

The UE can determine the PCI of the cell through the PSS and SSS sequences carried by the SSB resource. In related technologies, due to detection quality requirements, SSB resources cannot be used directly as BFD RSs; the embodiment of this application relaxes the detection requirements for SSBs and supports the UE to use SSBs as BFD RSs.

In addition, if the CSI-RS is used as a BFD RS, the NW can configure the CSI-RS to perform quasi-co-location operation with the SSB associated with the cell, so that the UE can perform quality measurement of the beam through the CSI-RS.

The above describes the configuration method of BFD RS in the embodiment of this application. For the activation of BFD RS, the embodiment of this application can adopt at least the following two methods:

The first is to use MAC CE to activate BFD RS.

Network equipment can use MAC CE to respectively activate BFD RS for first-type channels/signals (such as non-UE-specific channels) and second-type channels/signals (such as UE-specific channels).

Taking the BFD RS that uses MAC CE to activate the second type channel/signal (such as a UE-specific channel) as an example, the terminal device uses the second reference signal of the second type channel/signal to perform beam failure recovery on the second type channel/signal. Can include:

When the first neighboring cell/TRP is in the activated state, the terminal device receives the first MAC CE, which is used to activate one or more BFD RSs in the BFD RS of the first neighboring cell/TRP;

The terminal equipment uses the activated BFD RS to perform beam failure detection in beam failure recovery.

For example, the first media access control (MAC, Media Access Control) control element (CE, Control Element) may include at least one of the following:

The first PCI corresponding to the cell/TRP;

BFD RS logo;

CSI-RS number of BFD RS;

SSB number of BFD RS.

Specifically, during the BFD RS configuration process, the NW first configures a BFD RS set for each cell or TRP through RRC signaling. For example, a maximum of 64 BFD RSs in each BFD RS set can be configured. Afterwards, after a cell or TRP is activated (such as the unified TCI state associated with the cell or TRP is activated), MAC CE is used to activate the BFD RS. Figure 7 is a schematic diagram of the format of the MAC CE used to activate BFD RS according to an embodiment of the present application. As shown in Figure 7, the MAC CE may include the following fields:

PCI: Indicates the cell or TRP corresponding to BFD RS activation. Since the value range of PCI is from 0 to 1003, the PCI field length can be 10 bits.

·BFD RS ID: Indicates the activated BFD RS ID. If the entire BFD RS set has a maximum of 64 BFD RSs, the length of the BFD RS ID field can be 6 bits.

·CSI-RS resource index (resource index): Using this field, the NW can use the number of the CSI-RS resource to directly activate the BFD RS. In this way, the CSI-RS resource index (value) with a length of 7 bits can be used. Range is 0~127) instead of BFD RS ID.

·SSB resource index (resource index): Using this field, the NW can use the SSB resource number to directly activate the BFD RS. In this method, a 6-bit CSI-RS resource index (value range is 0~ 63) to replace BFD RS ID.

·R: indicates reserved bits.

As shown in Figure 7, if the MAC CE includes the BFD RS ID or SSB resource index, there are 2 reserved bits (R bits) in the MAC CE; if the MAC CE includes the CSI-RS resource index, due to the CSI-RS The length of the resource index is 7 bits, so there are no reserved bits (R bits) in the MAC CE.

In addition, when the number of BFD RS configured in any BFD RS set by RRC signaling exceeds the UE's reporting capability, the above MAC CE can also be used to activate a certain number of BFD RS to meet the UE's measurement capabilities.

Second, the NW does not use separate signaling to activate BFD RS.

In response to this situation, when the NW activates the unified TCI state of a certain cell or TRP through MAC CE or DCI signaling, the UE believes that the uplink or downlink beam link corresponding to the unified TCI state is in an activated state, that is, the neighboring cell In the activated state, the UE can automatically activate the BFD RS of the cell or TRP without requiring additional explicit signaling to support it.

In this case, the terminal equipment uses the second reference signal of the second type channel/signal to perform beam failure recovery on the second type channel/signal, which may include:

When the first neighbor cell/TRP is in the active state, the terminal equipment uses the BFD RS of the second type channel/signal to perform beam failure detection in beam failure recovery.

In this case, since explicit signaling is not used to activate the BFD RS, signaling consumption can be saved.

In addition, when the UE completes beam failure recovery for the cell or TRP, the original BFD RS may no longer match the new beam, so the BFD RS corresponding to the PCI needs to be updated. In the embodiment of this application, the MAC CE used to activate the BFD RS in the first method can be used to update the BFD RS.

For example, in some embodiments, after the terminal device completes beam failure recovery, it may further include:

The terminal equipment receives the second MAC CE, which is used to update the BFD RS corresponding to the cell/TRP corresponding to the first type channel/signal, and/or, the second MAC CE is used to update the second type channel/signal The BFD RS corresponding to the corresponding cell/TRP.

In some implementations, the second MAC CE includes at least one of the following:

The cell corresponding to the updated BFD RS/PCI corresponding to the TRP;

Updated BFD RS logo;

The CSI-RS number of the updated BFD RS;

The SSB number of the updated BFD RS.

Similar to the MAC CE shown in Figure 7, the second MAC CE may include:

PCI: Indicates the cell or TRP corresponding to the BFD RS update. PCI field length can be 10 bits.

·BFD RS ID: Indicates the updated BFD RS ID. The length of the BFD RS ID field can be 6 bits.

·CSI-RS resource index (resource index): Using this field, the NW can use the number of the CSI-RS resource to directly update the BFD RS. In this way, a CSI-RS resource index (value) with a length of 7 bits can be used. Range is 0~127) instead of BFD RS ID.

·SSB resource index: Using this field, NW can directly update the BFD RS using the resource number of the SSB. The length of the SSB resource index can be 6 bits.

·R: indicates reserved bits.

Similarly, if the MAC CE includes the BFD RS ID or SSB resource index, there are 2 reserved bits (R bits) in the MAC CE; if the MAC CE includes the CSI-RS resource index, due to the CSI-RS resource index The length is 7 bits, so there are no reserved bits (R bits) in MAC CE.

Second, the determination and activation of implicit BFD RS

In this way, the NW does not explicitly configure or activate the BFD RS for the UE, but the UE itself determines the behavior of the BFD RS.

Taking the UE determining the second type of channel/signal (UE-specific channel/signal) as an example, in some implementations, the terminal equipment determines the BFD RS of the first neighboring cell/TRP, which may include:

The terminal equipment determines the BFD RS of the first neighboring cell/TRP based on the activated unified TCI status of CORESET in the first neighboring cell/TRP.

Specifically, the UE determines the BFD RS by activating the unified TCI state of CORESET(s) in a cell or TRP, that is, the QCL-TypeD RS contained in the QCL info contained in the unified TCI state can be used as a BFD RS. use.

For the implicit BFD RS determination method, the UE also needs to determine when to detect the BFD RS of the UE-specific channel/signal.

In some embodiments, the above-mentioned terminal equipment uses the second reference signal of the second type channel/signal to perform beam failure recovery on the second type channel/signal, which may include:

When the first neighbor cell/TRP is in the activated state, the terminal equipment uses the BFD RS of the second type channel/signal to perform beam failure detection in the beam failure recovery.

Specifically, when the CORESET(s) on the BWP of the cell/TRP where the UE's exclusive channel is located is activated with unified TCI state, the UE starts to measure the BFD RS. Because the CORESET of the UE exclusive channel has entered normal operation at this time, it needs to be monitored by the beam. For non-UE-dedicated channels, they have been used in the serving cell since the UE made initial access. Therefore, the start time of BFD RS detection for the UE-dedicated channel can also be the initial access time.

Third, explicit NBI RS configuration, activation and update

After the NW configures different BFD RSs for different channels/signals of the UE explicitly or implicitly, it can configure the corresponding explicit NBI RS for the UE, so that when the UE discovers the first type of channel/signal or After the second type channel/signal beam fails, a suitable new beam can be found from the beam candidate set represented by NBI RS and reported to the NW.

In some embodiments, the NBI RS may be the CSI-RS and SSB of the serving cell or neighbor cell/TRP.

In some embodiments, the above terminal device determines at least one of the first reference signal of the first type of channel/signal and the second reference signal of the second type of channel/signal, which may include:

The terminal equipment determines the NBI RS of the first type channel/signal based on the BFD RS of the first type channel/signal and the corresponding relationship between the BFD RS and the NBI RS; and/or,

The terminal device determines the NBI RS of the second type channel/signal based on the BFD RS of the second type channel/signal and the corresponding relationship between the BFD RS and the NBI RS.

Correspondingly, the above method may further include: the terminal device receiving the corresponding relationship between the BFD RS and the NBI RS.

NBI RS set and BFD RS set can have a one-to-one correspondence, that is, if the UE detects beam failure in the BFD RS set corresponding to the first type channel/signal or the second type channel/signal, it can Select a suitable new beam from the corresponding NBI RS set to report to the network (if any). "Appropriate" here may mean that the L1-RSRP of the beam is greater than the predetermined threshold set by the NW. The one-to-one relationship between BFD RS set and NBI RS set can be configured in advance by the network device through RRC parameters for the terminal device. For example, when the network device configures the BFD RS set for the terminal device, add an NBI RS set ID to its RRC parameters. , so that the BFD RS set corresponds one-to-one with the NBI RS set indicated by the NBI RS set ID. That is, for the BFD RS set of non-UE exclusive channels/signals, each BFD RS set corresponds to one NBI RS set; for the BFD RS set of the UE exclusive channel, each BFD RS set corresponds to another NBI RS set. Since the BFD RS configuration process generally occurs before the NBI RS configuration process, when the network device configures the BFD RS for the terminal device, it also configures the corresponding relationship between the BFD RS and the NBI RS (such as the one-to-one correspondence between the BFD RS set and the NBI RS set). ); In this way, the UE can determine the NBI RS configured by the network device through the BFD RS configured for it by the network device and the corresponding relationship between the BFD RS and the NBI RS. It can be seen that in this implementation, the network device does not need to send signaling specifically for configuring the NBI RS, so signaling overhead can be saved. Figure 8 is a schematic diagram of the corresponding relationship between BFD RS set and NBI RS set according to an embodiment of the present application. As shown in Figure 8, the serving cell where the non-UE exclusive channel/signal is located, and each neighbor corresponding to the UE exclusive channel/signal In each community, a one-to-one correspondence between BFD RS set and NBI RS set is configured. Among them, a BFD RS set can include multiple BFD RSs, such as a BFD RS set including 2 BFD RSs; an NBI RS set can also include multiple NBI RSs, such as an NBI RS set including 7 NBI RSs.

For the activation of BFD RS, the embodiment of this application can start measuring the corresponding NBI RS set after the BFD RS enters the activation state, that is, two one-to-one corresponding BFD RS set and NBI RS set are activated simultaneously or go activate.

Correspondingly, in some embodiments, the terminal equipment uses the first reference signal of the first type channel/signal to perform beam failure recovery on the first type channel/signal, including: the BFD RS of the first type channel/signal is in the active state Afterwards, the terminal equipment performs new beam selection in beam failure recovery for the NBI RS of the first type channel/signal; and/or,

The terminal equipment uses the second reference signal of the second type channel/signal to perform beam failure recovery on the second type channel/signal, including: after the BFD RS of the second type channel/signal is activated, the terminal equipment performs beam failure recovery on the second type channel/signal. /NBI RS of the signal performs new beam selection in beam failure recovery.

In addition, when the UE completes beam failure recovery for the cell or TRP, since the NW can use the MAC CE to update the BFD RS, in order to avoid mismatch between signaling, the NBI RS also needs to be updated. In addition, when the UE completes the beam failure recovery of a UE-specific channel/signal or a non-UE-specific channel/signal, it often needs to update the corresponding new alternative beam, that is, update the NBI RS set to find a suitable candidate for the next beam failure. New beam. In view of this, the embodiment of this application proposes an update mechanism for NBI RS. For example, in some embodiments, after the terminal device completes beam failure recovery, it may further include:

The terminal device receives the third MAC CE, which is used to update the NBI RS corresponding to the cell/TRP corresponding to the first type channel/signal, and/or, the third MAC CE is used to update the second type channel/signal NBI RS corresponding to the corresponding cell/TRP.

For example, the third MAC CE includes at least one of the following:

The third PCI corresponding to the cell/TRP;

NBI RS logo;

CSI-RS number of NBI RS;

SSB number of NBI RS.

Figure 9 is a schematic diagram of the format of the MAC CE used to update the NBI RS according to an embodiment of the present application. As shown in Figure 9, the MAC CE may include the following fields:

PCI: Indicates the cell or TRP corresponding to NBI RS update. Because the PCI value range is from 0 to 1003, the PCI field length can be 10 bits.

·NBI RS ID: Updated NBI RS ID. If the entire NBI RS set has a maximum of 64 NBI RSs, the length of the NBI RS ID field can be 6 bits.

·CSI-RS resource index: Using this field, the NW can use the number of the CSI-RS resource to directly update the NBI RS. In this way, a CSI-RS resource index with a length of 7 bits can be used (the value range is 0~ 127) to replace NBI RS ID.

·SSB resource index: Using this field, NW can choose to directly use the SSB resource index to update the NBI RS. The length of the SSB resource index can be 6 bits.

·R: indicates reserved bit

In the MAC CE shown in Figure 9, multiple (such as 7) NBI RS ID/CSI-RS resource index/SSB resource index fields can be included to indicate multiple updated NBI RS.

In addition, the embodiment of this application can also use a unified MAC CE to update the BFD RS and NBI RS.

The terminal equipment receives the fourth MAC CE. The fourth MAC CE is used to update the BFD RS and NBI RS corresponding to the cell/TRP corresponding to the first type channel/signal, and/or the fourth MAC CE is used to update the second type channel/ BFD RS and NBI RS corresponding to the cell/TRP corresponding to the signal.

For example, the fourth MAC CE may include at least one of the following:

The fourth PCI corresponding to the cell/TRP;

BFD RS logo;

CSI-RS number of BFD RS;

SSB number of BFD RS;

NBI RS logo;

CSI-RS number of NBI RS;

SSB number of NBI RS.

Figure 10 is a schematic diagram of the format of the MAC CE used to update the BFD RS and NBI RS according to an embodiment of the present application. As shown in Figure 10, the MAC CE may include the following fields:

PCI: Indicates the cell or TRP corresponding to BFD RS and NBI RS updates. Because the PCI value range is from 0 to 1003, the PCI field length can be 10 bits.

·BFD RS ID: Indicates the updated BFD RS ID. If the entire BFD RS set has a maximum of 64 BFD RSs, the length of the BFD RS ID field can be 6 bits.

·SSB resource index: Using this field, NW can directly update the BFD RS using the resource number of the SSB. The length of the SSB resource index field may be 6 bits.

·SSB resource index: Using this field, NW can choose to directly use the SSB resource index to update the NBI RS. The length of the SSB resource index field may be 6 bits.

·R: indicates reserved bit

Fourth, implicit NBI RS determination

In this method, the NW does not configure an explicit NBI RS for the UE, so the UE can use the SSB associated with the cell/TRP where the UE-specific channel/signal or non-UE-specific channel/signal is located as the NBI RS.

For example, in some embodiments, the terminal device determines at least one of a first reference signal for a first type of channel/signal and a second reference signal for a second type of channel/signal, including:

The terminal equipment determines multiple first-category SSBs associated with the cell/TRP where the first-category channel/signal is located, and uses all or part of the multiple first-category SSBs as the NBI RS of the first-category channel/signal. ;and / or,

The terminal equipment determines multiple Type 2 SSBs associated with the cell/TRP where the Type 2 channel/signal is located, and uses all or part of the Type 2 SSBs among the multiple Type 2 SSBs as the NBI RS of the Type 2 channel/signal. .

The above correlation may mean that the PCI possessed by the cell/TRP is expressed through the sequences of PSS and SSS in the SSB. The UE can find up to 64 SSBs corresponding to it through the PCI of the cell or TRP, and use all or a subset of these SSBs as a corresponding implicit NBI RS set.

When beam failure occurs, the UE finds the appropriate SSB in the NBI RS set and reports it to the NW. The difference from explicitly configuring NBI RS is that the SSB here can be found by the UE by measuring all SSBs to find a suitable new beam, rather than a new beam found within the range specified by the NW.

Fifth, BFRQ based on physical random access channel (PRACH, Physical Random Access Channel) or PUCCH-Scheduling Request (SR, Scheduling Request):

Based on the aforementioned first to fourth steps, the terminal device detects that a beam failure has occurred and selects a new beam that can be used for channel transmission. If the terminal device selects a new beam that can be used for channel transmission, in this step, the terminal device can obtain uplink resources from the network device and use the uplink resources to report the new beam selected by the terminal.

For example, in some implementations, the beam failure detection method proposed in the embodiment of this application may also include:

The terminal device obtains the uplink resources for sending the MAC CE (BFR MAC CE) that carries beam failure recovery. The BFR MAC CE is used to carry the new beam selected by the terminal device.

After obtaining the uplink resources, the terminal device can use the uplink resources to send the BFR MAC CE, thereby enabling the terminal device to report the selected new beam.

In some implementations, the embodiments of the present application can strive to obtain uplink resources for sending BFR MAC CE based on a contention-based random access process (CBRA, Contention Based Random Access).

For example, the terminal equipment obtaining the uplink resources for sending BFR MAC CE may include: when the beam failure occurs on the first type of channel/signal (such as a non-UE exclusive channel/signal), the terminal equipment transmits the signal to the first type of channel/signal (such as a non-UE exclusive channel/signal). The cell/TRP where the dedicated channel/signal is located initiates a competition-based random access process to obtain uplink resources for sending BFR MAC CE.

Specifically, when a beam failure occurs in the cell/TRP where the non-UE exclusive channel/signal is located, the UE can send a CBRA signal to the serving cell/TRP to obtain uplink resources to send BFR MAC CE. For the serving cell where the first type of channel/signal is located, the random access process is considered because there are non-UE-specific channels/signals required for the UE random access process in the cell/TRP, such as PRACH, etc.

In some implementations, the embodiments of the present application can strive to obtain uplink resources for sending BFR MAC CE based on PUCCH-SR.

For example, the terminal equipment obtaining the uplink resources for sending BFR MAC CE may include: when the second type of channel/signal (such as a UE-specific channel/signal) fails, the terminal equipment transmits the signal to the first type of channel/signal (such as a non-UE-specific channel/signal). The cell/TRP where the channel/signal is located) or the cell/TRP where the second type channel/signal (such as UE-specific channel/signal) is located sends PUCCH-SR to obtain the uplink resources for sending BFR MAC CE.

Specifically, when a beam failure occurs in the cell or TRP where the UE's dedicated channel/signal is located, the UE can send PUCCH-SR to the cell or the cell where the first type channel or signal is located to obtain uplink resources, and then send the BFR MAC CE to perform recover.

In addition, when the UE detects beam failure on a first-type channel/signal or a second-type channel/signal, it may consider sending a specific PUCCH-SR to ensure the reliability of the PUCCH-SR uplink. For example, the NW can associate the BFD RS set with the PUCCH-SR in advance through configuration. For example, when a beam failure occurs in a BFD RS set, its associated PUCCH-SR (such as the PUCCH-SR pointing to another non-failed cell or TRP) can be used to send an uplink scheduling request. Whether the BFD RS set is associated with the PUCCH-SR and/or the beam direction of the PUCCH-SR can be configured by the NW.

For example, the terminal equipment obtains the uplink resources for sending BFR MAC CE, including: the terminal equipment determines the PUCCH-SR associated with the BFD RS of the channel/signal where the beam failure occurs, and sends the associated PUCCH-SR to obtain the uplink resource for sending BFR MAC CE. resource.

Further, the terminal equipment can receive the association relationship between the BFD RS and the PUCCH-SR. For example, the association relationship between BFD RS and PUCCH-SR can be sent to the terminal device in advance by the network device.

In some embodiments, if the network device has configured PUCCH-SR for the first type of channel/signal (such as a non-UE-specific channel/signal), then when the beam failure occurs for the first type of channel/signal, the terminal device can The cell/TRP where the first type channel/signal is located sends PUCCH-SR to obtain the uplink resources for sending BFR MAC CE; if the network device does not configure PUCCH- SR, when the beam failure occurs on the first type channel/signal, the terminal device can initiate a competition-based random access process to the cell/TRP where the first type channel/signal is located to obtain the uplink resources for sending BFR MAC CE.

Correspondingly, in the above process, the terminal equipment determines the PUCCH-SR associated with the BFD RS of the channel/signal where the beam failure occurs, which may include: the terminal equipment determines the PUCCH-SR associated with the BFD RS of the channel/signal where the beam failure occurs based on the association relationship. .

Figure 11 is a schematic diagram of PRACH and PUCCH-SR used to obtain uplink resources according to an embodiment of the present application. As shown in Figure 11, the beam direction of PRACH points to the serving cell where the non-UE exclusive channel/signal is located, and the beam direction of PUCCH-SR can point to the serving cell where the non-UE exclusive channel/signal is located, or it can point to the serving cell where the UE exclusive channel/signal is located. of cell/TRP.

In some embodiments, when beam failure occurs in both the first type channel/signal and the first type channel/signal, the terminal device initiates a TRP-based communication to the cell/TRP where the first type channel/signal is located. The random access process of competition is used to obtain the uplink resources of the sending BFR MAC CE.

For example, when all channels/signals, that is, non-UE-specific channels/signals and UE-specific channels/signals, have beam failures, the UE can initiate a random access to the cell where the non-UE-specific channels/signals are located (i.e., the serving cell). entry process, thereby carrying the BFR MAC CE in the subsequent PUSCH.

For PUCCH-SR, the NW can configure or activate a unified TCI state (which can be an uplink TCI state or a joint TCI state) for the PUCCH-SR, and the UE can configure the cell where the non-UE exclusive channel/signal is located (such as the serving cell). ) or the cell where the UE exclusive channel/signal is located (such as a neighboring cell) sends PUCCH-SR to obtain uplink resources for sending BFR MAC CE.

In one implementation, the BFR MAC CE sent by the UE may include at least one of the following:

The second PCI corresponding to the cell/TRP;

Indication information indicating whether a suitable new beam has been found;

Candidate RS identification;

Unified identification of TCI status.

In some embodiments, the second PCI corresponding to the above-mentioned cell/TRP may be used to indicate the PCI corresponding to the cell/TRP corresponding to the channel/signal where the beam failure occurs.

In some implementations, the above-mentioned candidate RS identifiers may be used to indicate the new beam selected by the terminal device.

Figure 11 is a schematic structural diagram of a BFR MAC CE according to an embodiment of the present application. As shown in Figure 11, the BFR MAC CE may specifically include the following fields:

·PCI of beam failure cell/TRP. It can be seen that, unlike the traditional Serving cell index, the PCI here can correspond to the cell where the UE exclusive channel/signal is located, or the cell where the non-UE exclusive channel/signal is located.

·AC: Used to indicate whether a suitable new beam has been found for this PCI. The length of AC can be 1 bit.

Candidate RS ID: This field can indicate the identity of the new beam, such as RRC configuration or MAC CE update or activated CSI-RS resource index or SSB resource index.

·DL or joint TCI state ID: Considering the characteristics of the unified TCI state, the UE can directly report a unified TCI state ID. If the unified TCI state ID is the downlink (DL) TCI state ID, then in the later beam recovery, the corresponding downlink PDCCH, PDSCH or CSI-RS can be restored to the new beam indicated by the TCI; if the unified TCI state ID is Joint TCI state ID, then in addition to the downlink PDCCH, PDSCH or CSI-RS, the uplink PUCCH, PUSCH and sounding reference signal (SRS, Sounding Reference Signal) can also be restored to the new beam indicated by the TCI.

Sixth, NW confirms BFRQ, that is, sends BFRR

After the UE sends the BFR MAC CE to the NW, it waits for the NW's response to the BFR process. This process can be referred to as BFRR.

In some embodiments, if the UE sends the CBRA PRACH to the cell where the non-UE exclusive channel/signal is located, then wait for the completion of 2 steps (Msg.A and Msg.B) or 4 steps (Msg.1) in the cell. /2/3/4) Random access process. If the process ends successfully, the UE considers the BFR process to be completed.

In some embodiments, if the UE uses the PUSCH requested by the PUCCH-SR to bear the BFR MAC CE, the UE can wait for the NW to send a PDCCH to confirm. The PDCCH can use the same hybrid method as the previously scheduled PUSCH (BFR MAC CE). Automatic retransmission request (HARQ, Hybrid Automatic Repeat Request) process identification (ID, Identification), and uses an inverted new data indicator (NDI, New Data Indication).

Seventh, the terminal equipment performs beam recovery

Through the aforementioned first to sixth steps, after the beam failure detection, the UE completes the reporting of the new beam and the NW's confirmation of the new beam.

Afterwards, the UE can perform beam restoration behavior to restore the channel/signal to the new beam, or the desired channel/signal to restore the new beam (beam restoration of the downlink channel/signal can be performed by the network side). For example, for a downlink channel/signal, if the UE reports a new beam to the network device, the network device will restore the transmit beam of the downlink channel/signal to the new beam. Correspondingly, the UE will use the receive beam corresponding to the new beam. Receive the downlink channel/signal. For the uplink channel/signal, the UE restores the transmission beam of the uplink channel/signal to the new beam.

A similar beam recovery process can be performed for the serving cell of the first type of channel/signal (such as non-UE-specific channel/signal) and the neighboring cell/TRP of the second type of channel/signal (such as UE-specific channel/signal).

For example, in some implementations, the beam failure detection method proposed in the embodiment of this application may also include: when the BFR MAC CE includes the identification of the new beam, the terminal device uses the receiving beam corresponding to the new beam to receive CORESET corresponding to the second PCI; and/or, the terminal equipment restores the PUCCH to the new beam.

Specifically, when the UE reports the candidate RS ID in the BFR MAC CE, the UE expects that all CORESET(s) corresponding to the PCI will be restored to the new beam reported in the BFR MAC CE, that is, the UE expects the network equipment to adopt the new beam. All CORESET(s) corresponding to the PCI are sent, and accordingly, the UE uses the receiving beam corresponding to the new beam to receive all CORESET(s) corresponding to the PCI; for the uplink, the PUCCH is also restored to the new beam, that is The UE uses the downlink receiving beam corresponding to the new beam as the new uplink transmitting beam.

For example, in some implementations, the beam failure detection method proposed in the embodiment of the present application may also include: when the BFR MAC CE includes the identifier of the unified TCI state, for the second PCI, the terminal device uses the The receiving beam corresponding to the new beam receives the channel/signal corresponding to the unified TCI state; and/or, for the second PCI, the terminal device restores the channel/signal corresponding to the unified TCI state to the new on the beam.

Specifically, when the UE reports the unified TCI state, the UE also expects that for this PCI, the channels or signals corresponding to the unified TCI state will be restored to the new beam.

In some implementations, the identification of the unified TCI state may include the identification of the downlink (DL) TCI state or the identification of the joint (Joint) TCI state.

For example, when the BFR MAC CE includes the identifier of the downlink TCI state, for the second PCI, the terminal device uses the receiving beam corresponding to the new beam to receive the downlink channel/signal corresponding to the downlink TCI state.

Specifically, when the unified TCI state is DL TCI state, the UE expects that the PDCCH/PDSCH/Ap-CSI-RS of the cell or TRP will be restored to the new beam, that is, the UE expects the network equipment to use the new beam as the transmit beam for transmission. PDCCH/PDSCH/Ap-CSI-RS of the cell or TRP. Correspondingly, the UE uses the receiving beam corresponding to the new beam to receive the PDCCH/PDSCH/Ap-CSI-RS of the cell or TRP.

For another example, when the BFR MAC CE includes the identifier of the joint TCI state, for the second PCI, the terminal device uses the receiving beam corresponding to the new beam to receive the downlink channel/signal corresponding to the joint TCI state, And/or, for the second PCI, the terminal device restores the uplink channel/signal corresponding to the joint TCI state to the new beam.

Specifically, when the unified TCI state is joint TCI state, the UE expects the downlink channel/signal of the cell or TRP (i.e., PDCCH/PDSCH/Ap-CSI-RS) to be restored to the new beam, that is, the UE expects the network equipment to adopt The new beam is used as a transmit beam to transmit the PDCCH/PDSCH/Ap-CSI-RS of the cell or TRP. Correspondingly, the UE uses the receive beam corresponding to the new beam to receive the PDCCH/PDSCH/Ap-CSI-RS of the cell or TRP. . And/or, the UE may use the new beam as a transmit beam to transmit uplink channels/signals (such as PUCCH/PUSCH/SRS).

This embodiment of the present application also proposes another beam failure recovery method. Figure 12 is a schematic flow chart of a beam failure recovery method 1200 according to an embodiment of the present application. This method can optionally be applied to the system shown in Figure 1, but is not limited thereto. The method includes at least part of the following.

S1210. The network device configures for the terminal device at least one of the first reference signal of the first type of channel/signal and the second reference signal of the second type of channel/signal. The second reference signal of the second type channel/signal is used to perform beam failure recovery on the first type channel/signal and the second type channel/signal respectively.

In some embodiments, the first type of channel/signal is a non-UE-specific channel/signal or a UE-specific channel/signal of the terminal device, and the second type of channel/signal is a UE-specific channel/signal or a non-UE-specific channel/signal of the terminal device. channel/signal.

In some embodiments, the first reference signal includes at least one of BFD RS and NBI RS, and the second reference signal may also include at least one of BFD RS and NBI RS.

The network device can configure BFD RS for the UE's serving cell and multiple neighboring cells with different PCIs.

For example, the network device configures the second reference signal of the second type channel/signal for the terminal device, including: the network device sends RRC signaling to the terminal device, and the RRC signaling includes the BFD RS configured by the network device for each neighboring cell/TRP.

Among them, BFD RS can include SSB or CSI-RS.

After configuring BFD RS for the terminal device, the network device can further activate BFD RS for the terminal device. For example, when the first neighboring cell/TRP is in the activated state, the network device sends the first MAC CE to the terminal device, and the first MAC CE is used to activate one or more BFD RSs of the first neighboring cell/TRP. A BFD RS.

Specifically, the first MAC CE may include at least one of the following:

The first PCI corresponding to the cell/TRP;

BFD RS logo;

CSI-RS number of BFD RS;

SSB number of BFD RS.

In some implementations, the network device can also configure NBI RS for the terminal device. For example, configure the BFD RS by configuring the corresponding relationship between the BFD RS and the NBI RS.

For example, in some embodiments, the network device configures at least one of the first reference signal of the first type of channel/signal and the second reference signal of the second type of channel/signal for the terminal equipment, including: the network equipment configures the terminal equipment with Send the corresponding relationship between BFD RS and NBI RS.

Specifically, the NBI RS may include SSB or CSI-RS.

After the terminal device finds a new beam, the network device allocates uplink resources for sending BFR MAC CE to the terminal device based on the request of the terminal device, and receives the BFR MAC CE sent by the terminal device on the uplink resource. According to the BFR MAC CE Restore the corresponding downlink channel/signal to the new beam. The specific implementation manner has been introduced in the foregoing embodiments and will not be described again here.

Further, after the terminal device performs beam failure recovery, the network device can further update the BFD RS for the terminal device.

For example, the network device sends a second MAC CE to the terminal device. The second MAC CE is used to update the BFD RS corresponding to the cell/TRP corresponding to the first type of channel/signal, and/or the second MAC CE is used to update the second type of channel/signal. The BFD RS corresponding to the cell/TRP corresponding to the channel/signal.

In some implementations, the second MAC CE may include at least one of the following:

PCI corresponding to cell/TRP;

BFD RS logo;

CSI-RS number of BFD RS;

SSB number of BFD RS.

Further, after the terminal device performs beam failure recovery, the network device can further update the NBI RS for the terminal device.

For example, the network device sends a third MAC CE to the terminal device, and the third MAC CE is used to update the NBI RS corresponding to the cell/TRP corresponding to the first type channel/signal, and/or, the third MAC CE is used to update the second type The cell corresponding to the channel/signal/NBI RS corresponding to the TRP.

In some implementations, the third MAC CE may include at least one of the following:

The third PCI corresponding to the cell/TRP;

NBI RS logo;

CSI-RS number of NBI RS;

SSB number of NBI RS.

Alternatively, after the terminal device performs beam failure recovery, the network device can use a MAC CE to update the BFD RS and NBI RS for the terminal device.

For example, the network device sends the fourth MAC CE to the terminal device. The fourth MAC CE is used to update the BFD RS and NBI RS corresponding to the cell/TRP corresponding to the first type channel/signal, and/or the fourth MAC CE is used to update The BFD RS and NBI RS corresponding to the cell/TRP corresponding to the second type of channel/signal.

In some implementations, the fourth MAC CE may include at least one of the following:

The fourth PCI corresponding to the cell/TRP;

BFD RS logo;

CSI-RS number of BFD RS;

SSB number of BFD RS;

NBI RS logo;

CSI-RS number of NBI RS;

SSB number of NBI RS.

Figure 13 is a schematic block diagram of a terminal device 1300 according to an embodiment of the present application. The terminal device 1300 may include:

Determining module 1310, configured to determine at least one of the first reference signal of the first type of channel/signal and the second reference signal of the second type of channel/signal;

The beam failure recovery module 1320 is configured to use the first reference signal of the first type of channel/signal to perform beam failure recovery on the first type of channel/signal; and/or use the second reference signal of the second type of channel/signal to perform beam failure recovery on the first type of channel/signal. Class 2 channels/signals perform beam failure recovery.

In some embodiments, the first type of channel/signal is a non-user equipment UE-specific channel/signal or a UE-specific channel/signal of the terminal device 1300, and the second type of channel/signal is a UE-specific channel/signal of the terminal device 1300 or a non-user equipment UE-specific channel/signal. UE-specific channel/signal.

In some implementations, the first reference signal includes at least one of BFD RS and NBI RS.

In some implementations, the second reference signal includes at least one of BFD RS and NBI RS.

In some embodiments, the determining module 1310 is configured to determine the BFD RS of the first neighboring cell/TRP when the first neighboring cell/transmission reception point TRP is in an activated state, and set the BFD RS of the first neighboring cell/TRP to BFD RS identified as type 2 channel/signal.

In some implementations, the determining module 1310 is configured to determine the BFD RS of the first neighboring cell/TRP according to the BFD RS configured by the network device for each neighboring cell/TRP.

In some implementations, the terminal device 1300 further includes:

The first receiving module is used to receive radio resource control RRC signaling. The RRC signaling includes the BFD RS configured by the network device for each neighboring cell/TRP.

In some embodiments, the determining module 1310 is configured to determine the BFD RS of the first neighboring cell/TRP according to the activated unified transmission configuration indication TCI status of the control resource set CORESET in the first neighboring cell/TRP.

In some embodiments, the BFD RS includes a synchronization signal block SSB or a channel state information CSI-reference signal RS.

In some embodiments, the beam failure recovery module 1320 is configured to receive the first MAC CE when the first neighboring cell/TRP is in an activated state, and the first MAC CE is used to activate the BFD RS of the first neighboring cell/TRP. One or more BFD RSs in the BFD RS; use the activated BFD RS to perform beam failure detection in beam failure recovery.

In some implementations, the first MAC CE includes at least one of the following:

The first PCI corresponding to the cell/TRP;

BFD RS logo;

CSI-RS number of BFD RS;

SSB number of BFD RS.

In some embodiments, the beam failure recovery module 1320 is configured to use the BFD RS of the second type of channel/signal to perform beam failure detection in beam failure recovery when the first neighbor cell/TRP is in the active state.

In some embodiments, the determining module is configured to determine the NBI RS of the first type of channel/signal according to the BFD RS of the first type of channel/signal and the corresponding relationship between the BFD RS and the NBI RS; and/or, based on the second type of channel/signal, determine the NBI RS of the first type of channel/signal. The BFD RS of the second type of channel/signal, and the corresponding relationship between the BFD RS and the NBI RS, determine the NBI RS of the second type of channel/signal.

In some embodiments, the terminal device 1300 further includes,

The second receiving module is used to receive the correspondence between BFD RS and NBI RS.

In some embodiments, the determining module 1310 is configured to determine multiple first-category SSBs associated with the cell/TRP where the first-category channel/signal is located, and all or part of the first-category SSBs in the multiple first-category SSBs. As the NBI RS of the first type channel/signal; and/or, determine the multiple second type SSBs associated with the cell/TRP where the second type channel/signal is located, and combine all or part of the multiple second type SSBs. Category 2 SSB serves as the NBI RS for the Category 2 channel/signal.

In some embodiments, NBI RS includes SSB or CSI-RS.

In some embodiments, the beam failure recovery module 1320 is configured to perform new beam selection in beam failure recovery for the NBI RS of the first type channel/signal after the BFD RS of the first type channel/signal is in an activated state; and /Or, after the BFD RS of the second type channel/signal is in the activated state, perform new beam selection in beam failure recovery for the NBI RS of the second type channel/signal.

In some implementations, the terminal device 1300 further includes:

The acquisition module is used to acquire the uplink resources for sending BFR MAC CE, and the BFR MAC CE is used to carry the new beam selected by the terminal device 1300.

In some embodiments, the acquisition module is used to, when a beam failure occurs on the first type channel/signal, the cell/TRP where the first type channel/signal is located initiates a competition-based random access process to obtain the BFR MAC CE. Upstream resources.

In some embodiments, the acquisition module is configured to, when a beam failure occurs on a second type channel/signal, send a physical uplink signal to the cell/TRP where the first type channel/signal is located or to the cell/TRP where the second type channel/signal is located. Control channel PUCCH-scheduling request SR to obtain uplink resources for sending BFR MAC CE.

In some embodiments, the acquisition module is configured to determine the PUCCH-SR associated with the BFD RS of the channel/signal where the beam failure occurs, and send the associated PUCCH-SR to obtain the uplink resource for sending the BFR MAC CE.

In some implementations, the terminal device 1300 further includes: a third receiving module, configured to receive the association relationship between the BFD RS and the PUCCH-SR;

The acquisition module is used to determine, according to the association relationship, the PUCCH-SR associated with the BFD RS of the channel/signal where the beam failure occurs.

In some embodiments, the acquisition module is configured to initiate a competition-based random search to the cell/TRP where the first type channel/signal is located when beam failure occurs on both the first type channel/signal and the first type channel/signal. Access process to obtain uplink resources for sending BFR MAC CE.

In some embodiments, the BFR MAC CE includes at least one of the following:

The second PCI corresponding to the cell/TRP;

Indication information indicating whether a suitable new beam has been found;

Candidate RS identification;

Unified identification of TCI status.

In some embodiments, the terminal device 1300 further includes,

A first beam recovery module, configured to use the receiving beam corresponding to the new beam to receive the CORESET corresponding to the second PCI when the BFR MAC CE includes the identification of the new beam; and/or, restore the PUCCH to on the new beam.

In some embodiments, the terminal device 1300 further includes,

The second beam recovery module is configured to use the receiving beam corresponding to the new beam to receive the channel corresponding to the unified TCI state for the second PCI when the BFR MAC CE includes the identifier of the unified TCI state/ signal; and/or, for the second PCI, restore the channel/signal corresponding to the unified TCI state to the new beam.

In some implementations, the identification of the unified TCI state includes the identification of the downlink TCI state or the identification of the joint TCI state.

In some embodiments, the second beam recovery module is configured to, when the BFR MAC CE includes the identifier of the downlink TCI state, for the second PCI, use the receiving beam corresponding to the new beam to receive the downlink Downlink channel/signal corresponding to TCI status.

In some embodiments, the second beam recovery module is configured to, when the BFR MAC CE includes the identifier of the joint TCI state, for the second PCI, use the receiving beam corresponding to the new beam to receive the joint The downlink channel/signal corresponding to the TCI state, and/or, for the second PCI, restore the uplink channel/signal corresponding to the joint TCI state to the new beam.

In some implementations, the terminal device 1300 further includes:

The first update module is used to receive the second MAC CE, and the second MAC CE is used to update the BFD RS corresponding to the cell/TRP corresponding to the first type channel/signal, and/or, the second MAC CE is used to update the second type The BFD RS corresponding to the cell/TRP corresponding to the channel/signal.

The cell corresponding to the updated BFD RS/PCI corresponding to the TRP;

Updated BFD RS logo;

The CSI-RS number of the updated BFD RS;

The SSB number of the updated BFD RS.

In some implementations, the terminal device 1300 further includes:

The second update module is used to receive the third MAC CE, and the third MAC CE is used to update the NBI RS corresponding to the cell/TRP corresponding to the first type channel/signal, and/or, the third MAC CE is used to update the second type The cell corresponding to the channel/signal/NBI RS corresponding to the TRP.

In some implementations, the third MAC CE includes at least one of the following:

The third PCI corresponding to the cell/TRP;

NBI RS logo;

CSI-RS number of NBI RS;

SSB number of NBI RS.

In some implementations, the terminal device 1300 further includes:

The third update module is used to receive the fourth MAC CE. The fourth MAC CE is used to update the BFD RS and NBI RS corresponding to the cell/TRP corresponding to the first type channel/signal, and/or the fourth MAC CE is used to update. The BFD RS and NBI RS corresponding to the cell/TRP corresponding to the second type of channel/signal.

In some implementations, the fourth MAC CE includes at least one of the following:

The fourth PCI corresponding to the cell/TRP;

BFD RS logo;

CSI-RS number of BFD RS;

SSB number of BFD RS;

NBI RS logo;

CSI-RS number of NBI RS;

SSB number of NBI RS.

The terminal device 1300 in the embodiment of the present application can implement the corresponding functions of the terminal device in the aforementioned method 500 and 1200 embodiments. For the corresponding processes, functions, implementation methods and beneficial effects of each module (sub-module, unit or component, etc.) in the terminal device 1300, please refer to the corresponding description in the above method embodiment, and will not be described again here. It should be noted that the functions described for each module (sub-module, unit or component, etc.) in the terminal device 1300 of the application embodiment can be implemented by different modules (sub-module, unit or component, etc.), or can be implemented by the same module. Module (submodule, unit or component, etc.) implementation.

Figure 14 is a schematic block diagram of a network device 1400 according to an embodiment of the present application. The network device 1400 may include:

Configuration module 1410, configured to configure at least one of the first reference signal of the first type of channel/signal and the second reference signal of the second type of channel/signal for the terminal device 1300. The first reference signal of the first type of channel/signal is The signal and the second reference signal of the second type channel/signal are respectively used for beam failure recovery of the first type channel/signal and the second type channel/signal.

In some implementations, the first type of channels/signals are non-UE exclusive channels/signals or UE exclusive channels/signals of the terminal equipment, and the second type of channels/signals are UE exclusive channels/signals or non-UE exclusive channels/signals of the terminal equipment. Signal.

In some embodiments, the configuration module 1410 is configured to send RRC signaling to the terminal device 1300, where the RRC signaling includes the BFD RS configured by the network device 1400 for each neighboring cell/TRP.

In some embodiments, BFD RS includes SSB or CSI-RS.

In some implementations, network device 1400 also includes:

The first sending module is used to send the first MAC CE to the terminal device 1300 when the first neighboring cell/TRP is in the activated state. The first MAC CE is used to activate one of the BFD RSs of the first neighboring cell/TRP. or multiple BFD RS.

The first PCI corresponding to the cell/TRP;

BFD RS logo;

CSI-RS number of BFD RS;

SSB number of BFD RS.

In some implementations, the configuration module 1410 is configured to send the corresponding relationship between the BFD RS and the NBI RS to the terminal device 1300.

In some embodiments, NBI RS includes SSB or CSI-RS.

In some implementations, network device 1400 also includes:

The second sending module is used to send the second MAC CE to the terminal device 1300. The second MAC CE is used to update the BFD RS corresponding to the cell/TRP corresponding to the first type channel/signal, and/or the second MAC CE is used to Update the BFD RS corresponding to the cell/TRP corresponding to the second type channel/signal.

The cell corresponding to the updated BFD RS/PCI corresponding to the TRP;

Updated BFD RS logo;

The CSI-RS number of the updated BFD RS;

The SSB number of the updated BFD RS.

In some implementations, network device 1400 also includes:

The third sending module is used to send the third MAC CE to the terminal device 1300. The third MAC CE is used to update the NBI RS corresponding to the cell/TRP corresponding to the first type channel/signal, and/or the third MAC CE is used to Update the NBI RS corresponding to the cell/TRP corresponding to the second type channel/signal.

The third PCI corresponding to the cell/TRP;

NBI RS logo;

CSI-RS number of NBI RS;

SSB number of NBI RS.

In some implementations, network device 1400 also includes:

The fourth sending module is used to send the fourth MAC CE to the terminal device 1300. The fourth MAC CE is used to update the BFD RS and NBI RS corresponding to the cell/TRP corresponding to the first type channel/signal, and/or, the fourth MAC CE is used to update the BFD RS and NBI RS corresponding to the cell/TRP corresponding to the second type channel/signal.

The fourth PCI corresponding to the cell/TRP;

BFD RS logo;

CSI-RS number of BFD RS;

SSB number of BFD RS;

NBI RS logo;

CSI-RS number of NBI RS;

SSB number of NBI RS.

The network device 1400 in the embodiment of the present application can implement the corresponding functions of the network device in the aforementioned method 500 and 1200 embodiments. For the corresponding processes, functions, implementation methods and beneficial effects of each module (sub-module, unit or component, etc.) in the network device 1400, please refer to the corresponding description in the above method embodiment, and will not be described again here. It should be noted that the functions described for each module (sub-module, unit or component, etc.) in the network device 1400 of the application embodiment can be implemented by different modules (sub-module, unit or component, etc.), or can be implemented by the same module. Module (submodule, unit or component, etc.) implementation.

Figure 15 is a schematic structural diagram of a communication device 1500 according to an embodiment of the present application. The communication device 1500 includes a processor 1510, and the processor 1510 can call and run a computer program from the memory, so that the communication device 1500 implements the method in the embodiment of the present application.

In a possible implementation, the communication device 1500 may also include a memory 1520. The processor 1510 can call and run the computer program from the memory 1520, so that the communication device 1500 implements the method in the embodiment of the present application.

The memory 1520 may be a separate device independent of the processor 1510, or may be integrated into the processor 1510.

In a possible implementation, the communication device 1500 may also include a transceiver 1530, and the processor 1510 may control the transceiver 1530 to communicate with other devices. Specifically, the communication device 1500 may send information or data to, or receive data from, other devices. Information or data sent.

Among them, the transceiver 1530 may include a transmitter and a receiver. The transceiver 1530 may further include an antenna, and the number of antennas may be one or more.

In a possible implementation, the communication device 1500 can be the terminal device 1300 of the embodiment of the present application, and the communication device 1500 can implement the corresponding processes implemented by the terminal device in each method of the embodiment of the present application. For the sake of simplicity, I won’t go into details here.

In a possible implementation, the communication device 1500 can be the network device 1400 in the embodiment of the present application, and the communication device 1500 can implement the corresponding processes implemented by the network device in each method of the embodiment of the present application. For the sake of simplicity, I won’t go into details here.

Figure 16 is a schematic structural diagram of a chip 1600 according to an embodiment of the present application. The chip 1600 includes a processor 1610, and the processor 1610 can call and run a computer program from the memory to implement the method in the embodiment of the present application.

In a possible implementation, the chip 1600 may also include a memory 1620. The processor 1610 can call and run the computer program from the memory 1620 to implement the method executed by the communication device in the embodiment of the present application.

The memory 1620 may be a separate device independent of the processor 1610, or may be integrated into the processor 1610.

In a possible implementation, the chip 1600 may also include an input interface 1630. The processor 1610 can control the input interface 1630 to communicate with other devices or chips. Specifically, it can obtain information or data sent by other devices or chips.

In a possible implementation, the chip 1600 may also include an output interface 1640. The processor 1610 can control the output interface 1640 to communicate with other devices or chips. Specifically, it can output information or data to other devices or chips.

In a possible implementation, the chip can be applied to the terminal device 1300 in the embodiment of the present application, and the chip can implement the corresponding processes implemented by the terminal device in each method of the embodiment of the present application. For the sake of simplicity, here No longer.

In a possible implementation, the chip can be applied to the network device 1400 in the embodiment of the present application, and the chip can implement the corresponding processes implemented by the network device in each method of the embodiment of the present application. For the sake of simplicity, here No longer.

The chips used in terminal equipment and network equipment can be the same chip or different chips.

It should be understood that the chips mentioned in the embodiments of this application may also be called system-on-chip, system-on-a-chip, system-on-chip or system-on-chip, etc.

The processor mentioned above can be a general-purpose processor, a digital signal processor (DSP), an off-the-shelf programmable gate array (FPGA), an application specific integrated circuit (ASIC), or Other programmable logic devices, transistor logic devices, discrete hardware components, etc. The above-mentioned general processor may be a microprocessor or any conventional processor.

The memory mentioned above may be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory. Among them, non-volatile memory can be read-only memory (ROM), programmable ROM (PROM), erasable programmable read-only memory (erasable PROM, EPROM), electrically removable memory. Erase electrically programmable read-only memory (EPROM, EEPROM) or flash memory. Volatile memory can be random access memory (RAM).

It should be understood that the above memory is an exemplary but not restrictive description. For example, the memory in the embodiment of the present application can also be a static random access memory (static RAM, SRAM), a dynamic random access memory (dynamic RAM, DRAM), Synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection Dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM) and so on. That is, memories in embodiments of the present application are intended to include, but are not limited to, these and any other suitable types of memories.

Figure 17 is a schematic block diagram of a communication system 1700 according to an embodiment of the present application. The communication system 1700 includes a terminal device 1710 and a network device 1720.

Terminal equipment 1710, configured to determine at least one of the first reference signal of the first type of channel/signal and the second reference signal of the second type of channel/signal; use the first reference signal of the first type of channel/signal to Perform beam failure recovery on the first type of channel/signal; and/or perform beam failure recovery on the second type of channel/signal using the second reference signal of the second type of channel/signal. For details, please refer to the relevant description in method 500.

Network device 1710, configured to configure at least one of the first reference signal of the first type of channel/signal and the second reference signal of the second type of channel/signal for the terminal device, the first reference signal of the first type of channel/signal and the second reference signal for the second type channel/signal are respectively used to perform beam failure recovery on the first type channel/signal and the second type channel/signal. For details, please refer to the relevant description in method 1200. For the sake of brevity, no further details will be given here.

The terminal device 1710 can be used to implement the corresponding functions implemented by the terminal device in the above method, and the network device 1720 can be used to implement the corresponding functions implemented by the network device in the above method. For the sake of brevity, no further details will be given here.

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented using software, it may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the processes or functions according to 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 device. The computer instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted over a wired connection from a website, computer, server, or data center (such as coaxial cable, optical fiber, Digital Subscriber Line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) means to transmit to another website, computer, server or data center. The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server or data center integrated with one or more available media. The available media may be magnetic media (eg, floppy disk, hard disk, tape), optical media (eg, DVD), or semiconductor media (eg, Solid State Disk (SSD)), etc.

It should be understood that in the various embodiments of the present application, the size of the sequence numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its functions and internal logic, and should not be used in the embodiments of the present application. The implementation process constitutes any limitation.

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

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

Claims

A beam failure recovery method includes:

The terminal equipment determines at least one of a first reference signal for a first type of channel/signal and a second reference signal for a second type of channel/signal;

The terminal equipment uses the first reference signal of the first type channel/signal to perform beam failure recovery on the first type channel/signal; and/or the terminal equipment uses the first reference signal of the second type channel/signal. The second reference signal performs beam failure recovery on the second type of channel/signal.
The method of claim 1, wherein,

The first type of channel/signal is a non-user equipment UE-specific channel/signal or a UE-specific channel/signal of the terminal equipment;

The second type of channel/signal is a UE-specific channel/signal or a non-UE-specific channel/signal of the terminal device.
The method according to claim 1 or 2, wherein,

The first reference signal includes at least one of beam failure detection BFD reference signal RS and new beam selection NBI RS;

The second reference signal includes at least one of BFD RS and NBI RS.
The method according to claim 3, wherein the terminal device determines the second reference signal of the second type of channel/signal, including:

When the first neighboring cell/transmission reception point TRP is in the activated state, the terminal device determines the BFD RS of the first neighboring cell/TRP, and determines the BFD RS of the first neighboring cell/TRP as the BFD RS for type 2 channels/signals.
The method according to claim 4, wherein the terminal equipment determines the BFD RS of the first neighbor cell/TRP, including:

The terminal device determines the BFD RS of the first neighboring cell/TRP according to the BFD RS configured by the network device for each neighboring cell/TRP.
The method according to claim 5, further comprising: the terminal device receiving radio resource control RRC signaling, the RRC signaling including the BFD RS configured by the network device for each neighboring cell/TRP.
The method according to claim 4, wherein the terminal equipment determines the BFD RS of the first neighbor cell/TRP, including:

The terminal equipment determines the BFD RS of the first neighboring cell/TRP according to the activated unified transmission configuration indication TCI status of the control resource set CORESET in the first neighboring cell/TRP.
The method according to any one of claims 4 to 7, wherein the BFD RS includes a synchronization signal block SSB or a channel state information CSI-reference signal RS.
The method according to any one of claims 4 to 8, wherein the terminal equipment uses the second reference signal of the second type channel/signal to perform beam failure recovery on the second type channel/signal, including:

When the first neighboring cell/TRP is in an activated state, the terminal device receives a first media access control MAC control element CE, and the first MAC CE is used to activate the first neighboring cell/TRP. One or more BFD RS in BFD RS;

The terminal equipment uses the activated BFD RS to perform beam failure detection in the beam failure recovery.
The method according to claim 9, wherein the first MAC CE includes at least one of the following:

The first physical cell identifier PCI corresponding to the cell/TRP;

BFD RS logo;

CSI-RS number of BFD RS;

SSB number of BFD RS.
The method according to any one of claims 4 to 8, wherein the terminal equipment uses the second reference signal of the second type channel/signal to perform beam failure recovery on the second type channel/signal, including:

When the first neighbor cell/TRP is in the activated state, the terminal equipment uses the BFD RS of the second type channel/signal to perform beam failure detection in the beam failure recovery.
The method according to any one of claims 3 to 11, wherein the terminal device determines at least one of a first reference signal of a first type of channel/signal and a second reference signal of a second type of channel/signal, include:

The terminal device determines the NBI RS of the first type channel/signal based on the BFD RS of the first type channel/signal and the corresponding relationship between the BFD RS and the NBI RS; and/or,

The terminal device determines the NBI RS of the second type channel/signal based on the BFD RS of the second type channel/signal and the corresponding relationship between the BFD RS and the NBI RS.
The method according to claim 12, further comprising: the terminal device receiving the corresponding relationship between the BFD RS and the NBI RS.
The method according to any one of claims 3 to 11, wherein the terminal device determines at least one of a first reference signal of a first type of channel/signal and a second reference signal of a second type of channel/signal, include:

The terminal equipment determines multiple first-category SSBs associated with the cell/TRP where the first-category channel/signal is located, and uses all or part of the first-category SSBs among the multiple first-category SSBs as the first-category SSBs. NBI RS for a type of channel/signal; and/or,

The terminal equipment determines a plurality of second type SSBs associated with the cell/TRP where the second type channel/signal is located, and uses all or part of the second type SSBs in the plurality of second type SSBs as the second type SSB. NBI RS for Category 2 channels/signals.
The method according to any one of claims 12 to 14, wherein the NBI RS includes SSB or CSI-RS.
The method according to any one of claims 12 to 15, wherein the terminal equipment uses the first reference signal of the first type channel/signal to perform beam failure recovery on the first type channel/signal, including: After the BFD RS of the first type channel/signal is in the activated state, the terminal device performs new beam selection in the beam failure recovery on the NBI RS of the first type channel/signal; and/or,

The terminal equipment uses the second reference signal of the second type channel/signal to perform beam failure recovery on the second type channel/signal, including: after the BFD RS of the second type channel/signal is in an activated state , the terminal equipment performs new beam selection in the beam failure recovery for the NBI RS of the second type channel/signal.
The method of claim 16, further comprising:

The terminal device obtains the uplink resource of the media access control element BFR MAC CE that transmits the beam failure recovery, and the BFR MAC CE is used to carry the new beam selected by the terminal device.
The method according to claim 17, wherein the terminal device obtains the uplink resource for sending BFR MAC CE, including:

When a beam failure occurs on the first type channel/signal, the terminal device initiates a contention-based random access process to the cell/TRP where the first type channel/signal is located to obtain the BFR MAC CE sent. Upstream resources.
The method according to claim 17, wherein the terminal device obtains the uplink resource for sending BFR MAC CE, including:

When beam failure occurs on the second type channel/signal, the terminal device sends physical uplink control to the cell/TRP where the first type channel/signal is located or the cell/TRP where the second type channel/signal is located. Channel PUCCH-scheduling request SR to obtain the uplink resources of the sending BFR MAC CE.
The method according to claim 17, wherein the terminal device obtains the uplink resource for sending BFR MAC CE, including:

The terminal equipment determines the PUCCH-SR associated with the BFD RS of the channel/signal where the beam failure occurs, and sends the associated PUCCH-SR to obtain the uplink resource for sending the BFR MAC CE.
The method according to claim 20, further comprising: the terminal device receiving the association relationship between BFD RS and PUCCH-SR;

The terminal equipment determines the PUCCH-SR associated with the BFD RS of the channel/signal where the beam failure occurs, including: the terminal equipment determines the PUCCH-SR associated with the BFD RS of the channel/signal where the beam failure occurs based on the association relationship.
The method according to claim 17, wherein the terminal device obtains the uplink resource for sending BFR MAC CE, including:

When beam failure occurs in both the first type channel/signal and the first type channel/signal, the terminal device initiates a contention-based random access process to the cell/TRP where the first type channel/signal is located. , to obtain the uplink resources for sending the BFR MAC CE.
According to the method according to any one of claims 17 to 22, the BFR MAC CE includes at least one of the following:

The second PCI corresponding to the cell/TRP;

Indication information indicating whether a suitable new beam has been found;

Candidate RS identification;

Unified identification of TCI status.
The method according to claim 23, further comprising: when the BFR MAC CE includes the identification of the new beam, the terminal device uses the receiving beam corresponding to the new beam to receive the CORESET corresponding to the second PCI; and /Or, the terminal equipment restores the PUCCH to the new beam.
The method according to claim 23 or 24, further comprising: when the BFR MAC CE includes the identifier of the unified TCI state, for the second PCI, the terminal device uses the receiving beam corresponding to the new beam to receive The channel/signal corresponding to the unified TCI state; and/or, for the second PCI, the terminal device restores the channel/signal corresponding to the unified TCI state to the new beam.
The method according to claim 25, wherein the identifier of the unified TCI state includes an identifier of a downlink TCI state or an identifier of a combined TCI state.
The method according to claim 26, wherein when the BFR MAC CE includes an identifier of the unified TCI state, for the second PCI, the terminal device uses a receiving beam corresponding to the new beam to receive the unified The channels/signals corresponding to the TCI status include:

When the BFR MAC CE includes the identifier of the downlink TCI state, for the second PCI, the terminal device uses the receiving beam corresponding to the new beam to receive the downlink channel/signal corresponding to the downlink TCI state.
The method according to claim 26, wherein when the BFR MAC CE includes the identifier of the unified TCI state, for the second PCI, the terminal device uses the receiving beam corresponding to the new beam to receive the Unify the channel/signal corresponding to the unified TCI state; and/or, for the second PCI, the terminal device restores the channel/signal corresponding to the unified TCI state to the new beam, including:

When the BFR MAC CE includes the identifier of the joint TCI state, for the second PCI, the terminal device uses the receiving beam corresponding to the new beam to receive the downlink channel/signal corresponding to the joint TCI state, and/ Or, for the second PCI, the terminal device restores the uplink channel/signal corresponding to the joint TCI state to the new beam.
The method according to any one of claims 1 to 28, further comprising:

The terminal equipment receives a second MAC CE, the second MAC CE is used to update the BFD RS corresponding to the cell/TRP corresponding to the first type channel/signal, and/or, the second MAC CE is used to update The BFD RS corresponding to the cell/TRP corresponding to the second type channel/signal.
The method according to any one of claims 1 to 29, further comprising:

The terminal device receives a third MAC CE, the third MAC CE is used to update the NBI RS corresponding to the cell/TRP corresponding to the first type channel/signal, and/or the third MAC CE is used to update The NBI RS corresponding to the cell/TRP corresponding to the second type channel/signal.
The method of claim 30, wherein the third MAC CE includes at least one of the following:

The third PCI corresponding to the cell/TRP;

NBI RS logo;

CSI-RS number of NBI RS;

SSB number of NBI RS.
The method according to any one of claims 1 to 29, further comprising:

The terminal device receives a fourth MAC CE, which is used to update the BFD RS and NBI RS corresponding to the cell/TRP corresponding to the first type channel/signal, and/or, the fourth MAC CE Used to update the BFD RS and NBI RS corresponding to the cell/TRP corresponding to the second type channel/signal.
The method of claim 32, wherein the fourth MAC CE includes at least one of the following:

The fourth PCI corresponding to the cell/TRP;

BFD RS logo;

CSI-RS number of BFD RS;

SSB number of BFD RS;

NBI RS logo;

CSI-RS number of NBI RS;

SSB number of NBI RS.
A beam failure recovery method includes:

The network device configures at least one of a first reference signal of a first type of channel/signal and a second reference signal of a second type of channel/signal for the terminal equipment, and the first reference signal of the first type of channel/signal and the first reference signal of the second type of channel/signal The second reference signal of the second type channel/signal is used to perform beam failure recovery on the first type channel/signal and the second type channel/signal respectively.
The method of claim 34, wherein:

The first type of channel/signal is a non-UE-specific channel/signal or a UE-specific channel/signal of the terminal device;

The second type of channel/signal is a UE-specific channel/signal or a non-UE-specific channel/signal of the terminal device.
The method according to claim 34 or 35, wherein,

The first reference signal includes at least one of BFD RS and NBI RS;

The second reference signal includes at least one of BFD RS and NBI RS.
The method according to any one of claims 34-36, wherein the network device configures the second reference signal of the second type channel/signal for the terminal device, including:

The network device sends RRC signaling to the terminal device, where the RRC signaling includes the BFD RS configured by the network device for each neighboring cell/TRP.
The method according to claim 36 or 37, wherein the BFD RS includes SSB or CSI-RS.
The method according to claim 37, further comprising: when the first neighboring cell/TRP is in an activated state, the network device sends a first MAC CE to the terminal device, the first MAC CE is used to activate the One or more BFD RSs in the BFD RS of the first neighbor cell/TRP.
The method according to claim 39, wherein the first MAC CE includes at least one of the following:

The first PCI corresponding to the cell/TRP;

BFD RS logo;

CSI-RS number of BFD RS;

SSB number of BFD RS.
The method according to any one of claims 34 to 40, wherein the network device configures for the terminal device at least one of the first reference signal of the first type of channel/signal and the second reference signal of the second type of channel/signal. One item, including:

The network device sends the corresponding relationship between the BFD RS and the NBI RS to the terminal device.
The method of claim 41, wherein the NBI RS includes SSB or CSI-RS.
The method according to any one of claims 34-42, further comprising:

The network device sends a second MAC CE to the terminal device, the second MAC CE is used to update the BFD RS corresponding to the cell/TRP corresponding to the first type channel/signal, and/or, the second MAC CE is used to update the BFD RS corresponding to the cell/TRP corresponding to the second type channel/signal.
The method according to any one of claims 34-42, further comprising:

The network device sends a third MAC CE to the terminal device. The third MAC CE is used to update the NBI RS corresponding to the cell/TRP corresponding to the first type channel/signal, and/or the third MAC CE is used to update the NBI RS corresponding to the cell/TRP corresponding to the second type channel/signal.
The method of claim 44, wherein the third MAC CE includes at least one of the following:

The third PCI corresponding to the cell/TRP;

NBI RS logo;

CSI-RS number of NBI RS;

SSB number of NBI RS.
The method according to any one of claims 34-42, further comprising:

The network device sends a fourth MAC CE to the terminal device, the fourth MAC CE is used to update the BFD RS and NBI RS corresponding to the cell/TRP corresponding to the first type channel/signal, and/or, The fourth MAC CE is used to update the BFD RS and NBI RS corresponding to the cell/TRP corresponding to the second type channel/signal.
The method of claim 46, wherein the fourth MAC CE includes at least one of the following:

The fourth PCI corresponding to the cell/TRP;

BFD RS logo;

CSI-RS number of BFD RS;

SSB number of BFD RS;

NBI RS logo;

CSI-RS number of NBI RS;

SSB number of NBI RS.
A terminal device including:

A determining module, configured to determine at least one of a first reference signal for a first type of channel/signal and a second reference signal for a second type of channel/signal;

A beam failure recovery module, configured to use the first reference signal of the first type channel/signal to perform beam failure recovery on the first type channel/signal; and/or use the first reference signal of the second type channel/signal. Two reference signals perform beam failure recovery on the second type of channel/signal.
The terminal device according to claim 48, wherein,

The first type of channel/signal is a non-user equipment UE-specific channel/signal or a UE-specific channel/signal of the terminal equipment;

The second type of channel/signal is a UE-specific channel/signal or a non-UE-specific channel/signal of the terminal device.
The terminal device according to claim 48 or 49, wherein,

The first reference signal includes at least one of beam failure detection BFD reference signal RS and new beam selection NBI RS;

The second reference signal includes at least one of a beam failure detection BFD reference signal RS and a new beam selection NBI RS.
The terminal device according to claim 50, wherein the determining module is configured to determine the BFD RS of the first neighboring cell/TRP when the first neighboring cell/transmission reception point TRP is in an activated state, and The BFD RS of the first neighboring cell/TRP is determined as the BFD RS of the second type channel/signal.
The terminal device according to claim 51, wherein the determining module is configured to determine the BFD RS of the first neighboring cell/TRP according to the BFD RS configured by the network device for each neighboring cell/TRP.
The terminal device according to claim 52, further comprising:

The first receiving module is configured to receive radio resource control RRC signaling, where the RRC signaling includes the BFD RS configured by the network device for each neighboring cell/TRP.
The terminal device according to claim 51, wherein the determining module is configured to determine the first neighboring cell according to the activated unified transmission configuration indication TCI status of the control resource set CORESET in the first neighboring cell/TRP. /TRP’s BFD RS.
The terminal device according to any one of claims 51 to 54, wherein the BFD RS includes a synchronization signal block SSB or a channel state information CSI-reference signal RS.
The terminal device according to any one of claims 51 to 55, wherein the beam failure recovery module is configured to receive the first media access control MAC when the first neighboring cell/TRP is in an activated state. Control element CE, the first MAC CE is used to activate one or more BFD RSs in the BFD RS of the first neighboring cell/TRP; use the activated BFD RS to perform beam failure detection in the beam failure recovery .
The terminal device according to claim 56, wherein the first MAC CE includes at least one of the following:

The first physical cell identifier PCI corresponding to the cell/TRP;

BFD RS logo;

CSI-RS number of BFD RS;

SSB number of BFD RS.
The terminal device according to any one of claims 51 to 55, wherein the beam failure recovery module is configured to use the second type channel/ The BFD RS of the signal performs beam failure detection in the beam failure recovery.
The terminal device according to any one of claims 50 to 58, wherein the determination module is configured to determine the BFD RS of the first type channel/signal and the corresponding relationship between the BFD RS and the NBI RS. NBI RS of the first type channel/signal; and/or, determine the NBI RS of the second type channel/signal according to the BFD RS of the second type channel/signal and the corresponding relationship between the BFD RS and the NBI RS.
The terminal device according to claim 59, further comprising:

The second receiving module is used to receive the corresponding relationship between the BFD RS and the NBI RS.
The terminal device according to any one of claims 50 to 58, wherein the determining module is configured to determine a plurality of first-type SSBs associated with the cell/TRP where the first-type channel/signal is located, and combine the All or part of the first type SSBs among the plurality of first type SSBs are used as NBI RSs of the first type channel/signal; and/or, determine the cell/TRP associated with the second type channel/signal. Multiple second type SSBs, use all or part of the second type SSBs among the plurality of second type SSBs as NBI RSs of the second type channel/signal.
The terminal device according to any one of claims 59 to 61, wherein the NBI RS includes SSB or CSI-RS.
The terminal device according to any one of claims 59 to 62, wherein the beam failure recovery module is configured to, after the BFD RS of the first type channel/signal is in an activated state, perform / signal's NBI RS performs new beam selection in the beam failure recovery; and/or, after the BFD RS of the second type channel/signal is in the activated state, performs the NBI RS of the second type channel/signal New beam selection in the beam failure recovery is performed.
The terminal device according to claim 63, further comprising:

An acquisition module is used to acquire uplink resources for sending BFR MAC CE, and the BFR MAC CE is used to carry the new beam selected by the terminal device.
The terminal device according to claim 64, wherein the acquisition module is configured to: when the first type channel/signal has a beam failure, the cell/TRP where the first type channel/signal is located initiates a contention-based Random access process to obtain the uplink resources of the sending BFR MAC CE.
The terminal device according to claim 64, wherein the acquisition module is configured to, when a beam failure occurs on the second type channel/signal, send the signal to the cell/TRP where the first type channel/signal is located or the The cell/TRP where the second type channel/signal is located sends the physical uplink control channel PUCCH-scheduling request SR to obtain the uplink resources for sending the BFR MAC CE.
The terminal device according to claim 64, wherein the acquisition module is configured to determine the PUCCH-SR associated with the BFD RS of the channel/signal where the beam failure occurs, and send the associated PUCCH-SR to obtain the sent BFR MAC CE uplink resources.
The terminal equipment according to claim 67, further comprising: a third receiving module, used to receive the association relationship between BFD RS and PUCCH-SR;

The acquisition module is configured to determine, according to the association relationship, the PUCCH-SR associated with the BFD RS of the channel/signal where the beam failure occurs.
The terminal device according to claim 64, wherein the acquisition module is configured to: when beam failure occurs in both the first type channel/signal and the first type channel/signal, send the signal to the first type channel /The cell where the signal is located/TRP initiates a contention-based random access process to obtain the uplink resources for sending the BFR MAC CE.
According to the terminal device according to any one of claims 64 to 69, the BFR MAC CE includes at least one of the following:

The second PCI corresponding to the cell/TRP;

Indication information indicating whether a suitable new beam has been found;

Candidate RS identification;

Unified identification of TCI status.
The terminal device according to claim 70, further comprising:

A first beam recovery module, configured to use the receiving beam corresponding to the new beam to receive the CORESET corresponding to the second PCI when the BFR MAC CE includes the identification of the new beam; and/or, restore the PUCCH to on the new beam.
The terminal device according to claim 70 or 71, further comprising:

The second beam recovery module is configured to use the receiving beam corresponding to the new beam to receive the channel corresponding to the unified TCI state for the second PCI when the BFR MAC CE includes the identifier of the unified TCI state/ signal; and/or, for the second PCI, restore the channel/signal corresponding to the unified TCI state to the new beam.
The terminal device according to claim 72, wherein the identifier of the unified TCI state includes an identifier of a downlink TCI state or an identifier of a combined TCI state.
The terminal equipment according to claim 73, wherein the second beam recovery module is configured to, when the BFR MAC CE includes the identifier of the downlink TCI state, for the second PCI, use the new beam corresponding to The receiving beam receives the downlink channel/signal corresponding to the downlink TCI state.
The terminal device according to claim 73, wherein the second beam recovery module is configured to, when the BFR MAC CE includes the identifier of the joint TCI state, for the second PCI, use the new beam corresponding to The receiving beam receives the downlink channel/signal corresponding to the joint TCI state, and/or, for the second PCI, restores the uplink channel/signal corresponding to the joint TCI state to the new beam.
The terminal device according to any one of claims 48 to 75, further comprising:

The first update module is used to receive the second MAC CE. The second MAC CE is used to update the BFD RS corresponding to the cell/TRP corresponding to the first type channel/signal, and/or the second MAC CE Used to update the BFD RS corresponding to the cell/TRP corresponding to the second type channel/signal.
The terminal device according to any one of claims 48 to 76, further comprising:

The second update module is used to receive the third MAC CE. The third MAC CE is used to update the NBI RS corresponding to the cell/TRP corresponding to the first type channel/signal, and/or the third MAC CE Used to update the NBI RS corresponding to the cell/TRP corresponding to the second type channel/signal.
The terminal device according to claim 77, wherein the third MAC CE includes at least one of the following:

The third PCI corresponding to the cell/TRP;

NBI RS logo;

CSI-RS number of NBI RS;

SSB number of NBI RS.
The terminal device according to any one of claims 48 to 76, further comprising:

The third update module is used to receive the fourth MAC CE, and the fourth MAC CE is used to update the BFD RS and NBI RS corresponding to the cell/TRP corresponding to the first type channel/signal, and/or the third The four MAC CEs are used to update the BFD RS and NBI RS corresponding to the cell/TRP corresponding to the second type channel/signal.
The terminal device according to claim 79, wherein the fourth MAC CE includes at least one of the following:

The fourth PCI corresponding to the cell/TRP;

BFD RS logo;

CSI-RS number of BFD RS;

SSB number of BFD RS;

NBI RS logo;

CSI-RS number of NBI RS;

SSB number of NBI RS.
A network device that includes:

A configuration module configured to configure at least one of a first reference signal of a first type of channel/signal and a second reference signal of a second type of channel/signal for the terminal device, the first reference signal of the first type of channel/signal being The signal and the second reference signal of the second type channel/signal are respectively used to perform beam failure recovery on the first type channel/signal and the second type channel/signal.
The network device of claim 81, wherein:

The first type of channel/signal is a non-UE-specific channel/signal or a UE-specific channel/signal of the terminal device;

The second type of channel/signal is a UE-specific channel/signal or a non-UE-specific channel/signal of the terminal device.
The network device according to claim 81 or 82, wherein,

The first reference signal includes at least one of BFD RS and NBI RS;

The second reference signal includes at least one of BFD RS and NBI RS.
The network device according to any one of claims 81-83, wherein the configuration module is configured to send RRC signaling to the terminal device, where the RRC signaling includes the network device configured for each neighboring cell/TRP. BFDRS.
The network device according to claim 83 or 84, wherein the BFD RS includes SSB or CSI-RS.
The network device of claim 84, further comprising:

The first sending module is configured to send the first MAC CE to the terminal device when the first neighboring cell/TRP is in the activated state. The first MAC CE is used to activate the BFD RS of the first neighboring cell/TRP. One or more BFD RS.
The network device according to claim 86, wherein the first MAC CE includes at least one of the following:

The first PCI corresponding to the cell/TRP;

BFD RS logo;

CSI-RS number of BFD RS;

SSB number of BFD RS.
The network device according to any one of claims 81-87, wherein the configuration module is configured to send the corresponding relationship between BFD RS and NBI RS to the terminal device.
The network device of claim 88, wherein the NBI RS includes SSB or CSI-RS.
The network device according to any one of claims 81-87, further comprising:

The second sending module is used to send a second MAC CE to the terminal device. The second MAC CE is used to update the BFD RS corresponding to the cell/TRP corresponding to the first type channel/signal, and/or, The second MAC CE is used to update the BFD RS corresponding to the cell/TRP corresponding to the second type channel/signal.
The network device according to any one of claims 81-87, further comprising:

The third sending module is used to send a third MAC CE to the terminal device. The third MAC CE is used to update the NBI RS corresponding to the cell/TRP corresponding to the first type channel/signal, and/or, The third MAC CE is used to update the NBI RS corresponding to the cell/TRP corresponding to the second type channel/signal.
The network device according to claim 91, wherein the third MAC CE includes at least one of the following:

The third PCI corresponding to the cell/TRP;

NBI RS logo;

CSI-RS number of NBI RS;

SSB number of NBI RS.
The network device according to any one of claims 81-87, further comprising:

The fourth sending module is used to send a fourth MAC CE to the terminal device. The fourth MAC CE is used to update the BFD RS and NBI RS corresponding to the cell/TRP corresponding to the first type channel/signal, and/ Or, the fourth MAC CE is used to update the BFD RS and NBI RS corresponding to the cell/TRP corresponding to the second type channel/signal.
The network device according to claim 93, wherein the fourth MAC CE includes at least one of the following:

The fourth PCI corresponding to the cell/TRP;

BFD RS logo;

CSI-RS number of BFD RS;

SSB number of BFD RS;

NBI RS logo;

CSI-RS number of NBI RS;

SSB number of NBI RS.
A communication device, including: a processor and a memory, the memory is used to store a computer program, the processor is used to call and run the computer program stored in the memory, so that the communication device executes claims 1 to 33 Or the method of any one of claims 34 to 47.
A chip includes: a processor for calling and running a computer program from a memory, so that a device installed with the chip executes the method according to any one of claims 1 to 33 or 34 to 47.
A computer-readable storage medium used to store a computer program, which when the computer program is run by a device, causes the device to perform the method according to any one of claims 1 to 33 or 34 to 47.
A computer program product comprising computer program instructions that cause a computer to perform the method according to any one of claims 1 to 33 or 34 to 47.
A computer program that causes a computer to perform the method according to any one of claims 1 to 33 or 34 to 47.