Beam switching method and device, and communication equipment

Abstract

The present invention provides a beam switching method, apparatus, and communication equipment, belonging to the field of wireless communication technology. The beam switching method, applied to a terminal, includes: detecting the quality of reference signals in a first reference signal set to obtain a first quality detection result, wherein the reference signals in the first reference signal set have a corresponding relationship with a transmission receiving point (TRP) and are used to detect beam failure; and determining whether a beam failure or a partial beam failure has occurred based on the first quality detection result. Through the technical solution of the present invention, the terminal can detect the occurrence of a partial beam failure and report it to the base station. The base station can instruct the terminal to switch to other available beams to continue multi-TRP transmission.

Description

Technical Field

[0001] The present invention relates to the field of wireless communication technologies, and in particular to a beam switching method and apparatus, and communication equipment. Background Art

[0002] In existing communication protocols, the beam failure recovery process includes: 1) the terminal detects beam failure; 2) the terminal identifies an alternative beam; 3) the terminal sends a beam recovery request (Beam Failure Recovery Request, BFRQ) to the base station; 4) the terminal monitors the base station's response to the BFRQ.

[0003] Among them, the way in which the terminal fails to detect the beam is: the terminal detects the reference signal set The quality of the reference signal in It is configured by the base station or determined according to the Transmission Configuration Indication State (TCI State) of the control resource set (CORESETs). All reference signals in the out,LR When a beam failure occurs, a beam failure instance is counted. When the number of beam failure instances exceeds the defined number within a certain period of time, a beam failure is determined to have occurred. The terminal identifies the candidate beam by selecting the reference signal set. RSRP is greater than or equal to Q in,LR The reference signal.

[0004] The existing communication protocol introduces multi-TRP technology, that is, the terminal can establish communication links with multiple transmission receiving points (TRP) for data transmission. Multiple TRPs can improve the transmission reliability or transmission rate by sending the same or different data. Figure 1 As shown, assuming that TRP1 and TRP2 belong to the same cell, according to the existing beam failure detection mechanism, the base station configures a reference signal set for detecting the link quality of TRP1 and TRP2 when The quality of all reference signals in the out,LR A beam failure instance is counted only when

[0005] However, in a multi-TRP scenario, it may happen that the link between the terminal and only one TRP is blocked, such as Figure 1In a scenario where TRP1 and the terminal are unable to communicate, but TRP2 maintains communication, this is called a partial beam failure. To ensure communication reliability and transmission rate, the terminal should switch to another available beam in TRP1 or communicate with the terminal. If the link quality between TRP3 and the terminal is good, the terminal can also perform multi-TRP transmission with TRP2 and TRP3. However, under the existing mechanism, the terminal can only detect whether a beam failure has occurred, but not a partial beam failure, which affects communication reliability and transmission rate. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to provide a beam switching method and device, and communication equipment, so that the terminal can detect the occurrence of partial beam failure and report it to the base station. The base station can instruct the terminal to switch to other available beams to continue multi-TRP transmission.

[0007] To solve the above technical problems, the embodiments of the present invention provide the following technical solutions:

[0008] An embodiment of the present invention provides a beam switching method, applied to a terminal, including:

[0009] detecting quality of reference signals in a first reference signal set to obtain a first quality detection result, where the reference signals in the first reference signal set correspond to transmission reception points (TRPs) and are used to detect beam failure;

[0010] Whether beam failure or partial beam failure occurs is determined based on the first quality detection result.

[0011] Optionally, the method further includes:

[0012] The quality of the reference signals in the second reference signal set is detected to obtain a second quality detection result, where the reference signals in the second reference signal set have a corresponding relationship with the transmission reception points and are used to discover the alternative beams.

[0013] Optionally, the determining whether beam failure or partial beam failure occurs according to the first quality detection result includes:

[0014] When the first quality detection result is that the quality of all reference signals corresponding to any TRP in the first reference signal set within the preset time window is lower than the first preset threshold for more than the preset number of times, it is determined that a partial beam failure has occurred.

[0015] Optionally, before detecting the quality of the reference signals in the first reference signal set, the method further includes:

[0016] receiving the first reference signal set configured by a network-side device; or

[0017] The first reference signal set is determined according to the relationship between type D quasi-colocation QCL (quas-colocation) type D in the TCI-State of the control resource set.

[0018] Optionally, the first reference signal set includes a reference signal and an identifier of a transmission reception point to which the reference signal belongs; or

[0019] The first reference signal set includes multiple reference signal sets, and each reference signal set corresponds to a transmission and reception point.

[0020] Optionally, the second reference signal set includes a reference signal and an identifier of a transmission reception point to which the reference signal belongs;

[0021] The second reference signal set includes a plurality of reference signal sets, and each reference signal set corresponds to a transmission and reception point.

[0022] An embodiment of the present invention further provides a beam switching method, applied to a network-side device, including:

[0023] A first reference signal set is sent to the terminal, where the reference signals in the first reference signal set correspond to the transmission reception point TRP and are used to detect beam failure.

[0024] Optionally, the method further includes:

[0025] A second reference signal set is sent to the terminal, where the reference signals in the second reference signal set correspond to the transmission reception points and are used to discover alternative beams.

[0026] The embodiment of the present invention further provides a beam switching device, which is applied to a terminal and includes a processor and a transceiver.

[0027] The processor is used to detect the quality of the reference signals in the first reference signal set to obtain a first quality detection result. The reference signals in the first reference signal set have a corresponding relationship with the transmission receiving point TRP and are used to detect beam failure; and determine whether beam failure or partial beam failure occurs based on the first quality detection result.

[0028] Optionally, the processor is further used to detect the quality of reference signals in a second reference signal set to obtain a second quality detection result, where the reference signals in the second reference signal set have a corresponding relationship with the transmission receiving points and are used to discover alternative beams.

[0029] Optionally, the processor is specifically used to determine that a partial beam failure has occurred when the first quality detection result is that the quality of all reference signals corresponding to any TRP in the first reference signal set within the preset time window is lower than a first preset threshold for a number of times greater than a preset number.

[0030] Optionally, the transceiver is further configured to receive the first reference signal set configured by a network-side device; or

[0031] The processor is further configured to determine the first reference signal set according to a relationship of QCL type D in TCI-State of a control resource set.

[0032] Optionally, the first reference signal set includes a reference signal and an identifier of a transmission reception point to which the reference signal belongs; or

[0033] The first reference signal set includes multiple reference signal sets, and each reference signal set corresponds to a transmission and reception point.

[0034] Optionally, the second reference signal set includes a reference signal and an identifier of a transmission reception point to which the reference signal belongs;

[0035] The second reference signal set includes a plurality of reference signal sets, and each reference signal set corresponds to a transmission and reception point.

[0036] The embodiment of the present invention further provides a beam switching device, which is applied to a network side device and includes a processor and a transceiver.

[0037] The transceiver is used to send a first reference signal set to the terminal, where the reference signals in the first reference signal set have a corresponding relationship with the transmission reception point TRP and are used to detect beam failure.

[0038] Optionally, the transceiver is further used to send a second reference signal set to the terminal, where the reference signals in the second reference signal set have a corresponding relationship with the transmission receiving points and are used to discover alternative beams.

[0039] An embodiment of the present invention further provides a communication device, comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the computer program implements the steps in the beam switching method described above when executed by the processor.

[0040] An embodiment of the present invention further provides a computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, the steps in the beam switching method described above are implemented.

[0041] The embodiments of the present invention have the following beneficial effects:

[0042] In the above scheme, the terminal detects the quality of the reference signal in the first reference signal set and obtains a first quality detection result. The reference signal in the first reference signal set has a corresponding relationship with the transmission receiving point and is used to detect beam failure. The terminal can determine whether a beam failure or a partial beam failure occurs based on the first quality detection result. Through the technical solution of the present invention, the terminal can detect the occurrence of partial beam failure, so that the terminal reports the detection result of partial beam failure to the base station. The base station can instruct the terminal to switch to other available beams to continue multi-TRP transmission, which can ensure the reliability or transmission rate of communication and reduce the probability of link interruption. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0044] Figure 1 A schematic diagram showing that a terminal can establish communication links with multiple TRPs for data transmission;

[0045] Figure 2 1 is a flow chart of a beam switching method applied to a terminal according to an embodiment of the present invention;

[0046] Figure 3 1 is a flow chart of a beam switching method applied to a network-side device according to an embodiment of the present invention;

[0047] Figure 4 This is a structural block diagram of a beam switching device applied to a terminal according to an embodiment of the present invention;

[0048] Figure 5 The figure is a structural block diagram of a beam switching device applied to a network-side device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0049] In order to make the technical problems, technical solutions and advantages to be solved by the embodiments of the present invention clearer, they will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0050] Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0051] The terms "first", "second" etc. in the specification and claims of the present application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchangeable in appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "comprise" and "have" and any of their variations are intended to cover non-exclusive inclusions, for example, the process, method, system, product or equipment comprising a series of steps or units need not be limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or that are intrinsic to these processes, methods, products or equipment. "And / or" in the specification and claims represents at least one of the connected objects.

[0052] The technology described herein is not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems and can also be used in various wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency Division Multiple Access (SC-FDMA), and other systems. The terms "system" and "network" are often used interchangeably. A CDMA system can implement radio technologies such as CDMA2000 and Universal Terrestrial Radio Access (UTRA). UTRA includes Wideband Code Division Multiple Access (WCDMA) and other CDMA variants. A TDMA system can implement radio technologies such as Global System for Mobile Communication (GSM). OFDMA systems can implement radio technologies such as Ultra Mobile Broadband (UMB), Evolution-UTRA (E-UTRA), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, and Flash-OFDM. UTRA and E-UTRA are parts of the Universal Mobile Telecommunications System (UMTS). LTE and more advanced LTE (such as LTE-A) are new versions of UMTS that use E-UTRA. UTRA, E-UTRA, UMTS, LTE, LTE-A, and GSM are described in documents from an organization called the 3rd Generation Partnership Project (3GPP). CDMA2000 and UMB are described in documents from an organization called the 3rd Generation Partnership Project 2 (3GPP2).The techniques described herein may be used for the systems and radio technologies mentioned above, as well as for other systems and radio technologies. However, the following description describes an NR system for example, and NR terminology is used throughout the description, even though the techniques are applicable to applications beyond NR systems.

[0053] The following description provides examples and does not limit the scope, applicability, or configuration set forth in the claims. Changes may be made to the function and arrangement of the elements discussed without departing from the spirit and scope of this disclosure. The various examples may appropriately omit, substitute, or add various procedures or components. For example, the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

[0054] An embodiment of the present invention provides a beam switching method and apparatus, and a communication device, which enable a terminal to detect the occurrence of partial beam failure and report it to a base station. The base station can instruct the terminal to switch to other available beams to continue multi-TRP transmission.

[0055] An embodiment of the present invention provides a beam switching method, which is applied to a terminal, such as Figure 2 Shown, including:

[0056] Step 101: Detecting the quality of reference signals in a first reference signal set to obtain a first quality detection result, where the reference signals in the first reference signal set correspond to transmission reception points (TRPs) and are used to detect beam failure.

[0057] The first reference signal set can be configured for the terminal by the network-side device. If the network-side device does not configure the first reference signal set, the terminal determines the first reference signal set based on the relationship of QCL typeD in the TCI-State of the CORESET. The correspondence between the reference signals in the first reference signal set and the TRP can be determined by indicating the TRPId to which each reference signal belongs, or the correspondence between the reference signals in the first reference signal set and the TRP can be determined by configuring the first reference signal set to include multiple RS Sets, each Set corresponding to one TRP.

[0058] Step 102: Determine whether beam failure or partial beam failure occurs based on the first quality detection result.

[0059] In this embodiment, the terminal detects the quality of the reference signals in the first reference signal set and obtains a first quality detection result. The reference signals in the first reference signal set have a corresponding relationship with the transmission receiving points and are used to detect beam failure. The terminal can determine whether a beam failure or a partial beam failure occurs based on the first quality detection result. Through the technical solution of the present invention, the terminal can detect the occurrence of partial beam failure, so that the terminal reports the detection result of partial beam failure to the base station. The base station can instruct the terminal to switch to other available beams to continue multi-TRP transmission, which can ensure the reliability or transmission rate of communication and reduce the probability of link interruption.

[0060] Optionally, the method further includes:

[0061] The quality of the reference signals in the second reference signal set is detected to obtain a second quality detection result, where the reference signals in the second reference signal set have a corresponding relationship with the transmission reception points and are used to discover the alternative beams.

[0062] Among them, the correspondence between the second reference signal and the TRP can be notified to the terminal through explicit indication or predefined manner; the correspondence between the reference signal and the TRP in the second reference signal set can be determined by indicating the TRP Id to which each reference signal belongs, or the second reference signal set includes multiple RS Sets, each Set corresponds to a TRP.

[0063] Optionally, the determining whether beam failure or partial beam failure occurs according to the first quality detection result includes:

[0064] When the first quality detection result is that the quality of all reference signals corresponding to any TRP in the first reference signal set within the preset time window is lower than the first preset threshold for more than the preset number of times, it is determined that a partial beam failure has occurred.

[0065] Optionally, when the first quality detection result is that the quality of all reference signals corresponding to all TRPs in the first reference signal set within the preset time window is lower than the first preset threshold for a number of times greater than the preset number, it is determined that beam failure occurs.

[0066] Optionally, before detecting the quality of the reference signals in the first reference signal set, the method further includes:

[0067] receiving the first reference signal set configured by a network-side device; or

[0068] The first reference signal set is determined according to the relationship of QCL type D in TCI-State of the control resource set.

[0069] Optionally, the first reference signal set includes a reference signal and an identifier of a transmission reception point to which the reference signal belongs; or

[0070] The first reference signal set includes multiple reference signal sets, and each reference signal set corresponds to a transmission and reception point.

[0071] Optionally, the second reference signal set includes a reference signal and an identifier of a transmission reception point to which the reference signal belongs;

[0072] The second reference signal set includes a plurality of reference signal sets, and each reference signal set corresponds to a transmission and reception point.

[0073] The embodiment of the present invention also provides a beam switching method, which is applied to a network side device, such as Figure 3 Shown, including:

[0074] Step 201: Send a first reference signal set to the terminal, where the reference signals in the first reference signal set correspond to the transmission reception point TRP and are used to detect beam failure.

[0075] In this embodiment, the network side device sends a first reference signal set to the terminal, so that the terminal detects the quality of the reference signals in the first reference signal set and determines whether a beam failure or a partial beam failure occurs. Through the technical solution of the present invention, the terminal can detect the occurrence of a partial beam failure, so that the terminal reports the detection result of the partial beam failure to the base station. The base station can instruct the terminal to switch to other available beams to continue multi-TRP transmission, which can ensure the reliability or transmission rate of communication and reduce the probability of link interruption.

[0076] Optionally, the method further includes:

[0077] A second reference signal set is sent to the terminal, where the reference signals in the second reference signal set correspond to the transmission reception points and are used to discover alternative beams.

[0078] The technical solution of the present invention is further described below in conjunction with specific embodiments:

[0079] Example 1:

[0080] In this embodiment, the network-side device is a base station. The base station configures a reference signal set for the terminal to detect beam failure and discover alternative beams, and indicates the correspondence between each reference signal and the TRP, as well as the correspondence between the alternative beam reference signal and the random access opportunity (ra-Occasion), random access pilot (ra-Preamble), and ra-Preamble. As shown below:

[0081]

[0082]

[0083] Assume that the corresponding relationship between each reference signal configured by the base station and the TRP is as follows:

[0084] failureDetectionResources (resources used to detect beam failure):

[0085] CRI0 and CRI1 correspond to TRP1, and CRI2 and CRI3 correspond to TRP2.

[0086] CandidateBeamRSList (candidate beam reference signal list):

[0087] CRI0,…,CRI7 correspond to TRP1;

[0088] CRI8,…,CRI 15 Corresponding to TRP2;

[0089] CRI 16 ,…,CRI 23 Corresponding to TRP3.

[0090] The terminal detects the quality of each reference signal in failureDetectionResources. If the terminal detects that the quality of the reference signals CRI0 and CRI1 is lower than the threshold more than the preset number threshold within a certain time window, it is considered that the link between TRP1 and the terminal has failed, that is, a partial beam failure has occurred. If the terminal detects that the quality of the reference signals CRI0, CRI1, CRI2, and CRI3 is lower than the threshold more than the preset number threshold within a certain time window, a beam failure has occurred.

[0091] The terminal detects CRI0, ..., CRI7 or CRI in CandidateBeamRSList 16 ,…,CRI 23 If the quality of a reference signal meets the threshold, the CRI and the corresponding reference signal quality are sent to the media access control (MAC) layer. The MAC layer indicates the reference signal of the candidate beam. The terminal then sends information based on the ra-Preamble and ra-Occasion corresponding to the reference signal of the candidate beam.

[0092] The terminal monitors the base station's response information to partial beam failure or beam failure on the CORESET or SearchSpace configured by the base station.

[0093] Example 2:

[0094] In this embodiment, the network-side device is a base station. The base station configures a reference signal set for the terminal for detecting beam failure and discovering an alternative beam. Each reference signal set includes multiple reference signal sets, and each reference signal set is predefined to correspond to a TRP. Thus, a correspondence between the reference signal and the TRP is obtained as shown below:

[0095] FailureDetectionResources includes reference signal set 1 (CSI-RS Resource Set 1) and reference signal set 2 (CSI-RS Resource Set 2), where reference signal set 1 corresponds to TRP1 and reference signal set 2 corresponds to TRP2.

[0096] CandidateBeamRSList includes reference signal set 1 (CandidateBeamRS Set1), reference signal set 2 (CandidateBeamRS Set2) and reference signal set 3 (CandidateBeamRS Set3), where reference signal set 1 corresponds to TRP1, reference signal set 2 corresponds to TRP2, and reference signal set 3 corresponds to TRP3.

[0097] The terminal detects the quality of each reference signal in failureDetectionResources. If the terminal detects that the quality of the reference signals CRI0 and CRI1 is lower than the threshold more than the preset number threshold within a certain time window, CRI0 and CRI1 belong to reference signal set 1. The terminal considers that the link between TRP1 and the terminal has failed, that is, a partial beam failure has occurred.

[0098] When the terminal detects that the quality of a reference signal in the reference signal set in the CandidateBeamRSList meets the threshold, it sends the satisfied CRI and the corresponding reference signal quality to the media access control (MAC) layer. The MAC layer indicates the reference signal of the candidate beam. The terminal then sends information based on the ra-Preamble and ra-Occasion corresponding to the candidate beam reference signal.

[0099] The terminal monitors the base station's response information to partial beam failure on the CORESET or SearchSpace configured by the base station.

[0100] The embodiment of the present invention further provides a beam switching device, which is applied to a terminal, such as Figure 4 As shown, it includes a processor 31 and a transceiver 32,

[0101] The processor 31 is used to detect the quality of the reference signals in the first reference signal set to obtain a first quality detection result. The reference signals in the first reference signal set have a corresponding relationship with the transmission receiving point TRP and are used to detect beam failure; and determine whether beam failure or partial beam failure occurs based on the first quality detection result.

[0102] In this embodiment, the terminal detects the quality of the reference signals in the first reference signal set and obtains a first quality detection result. The reference signals in the first reference signal set have a corresponding relationship with the transmission receiving points and are used to detect beam failure. The terminal can determine whether a beam failure or a partial beam failure occurs based on the first quality detection result. Through the technical solution of the present invention, the terminal can detect the occurrence of partial beam failure, so that the terminal reports the detection result of partial beam failure to the base station. The base station can instruct the terminal to switch to other available beams to continue multi-TRP transmission, which can ensure the reliability or transmission rate of communication and reduce the probability of link interruption.

[0103] Optionally, the processor 31 is also used to detect the quality of the reference signals in the second reference signal set to obtain a second quality detection result, where the reference signals in the second reference signal set have a corresponding relationship with the transmission receiving points and are used to discover alternative beams.

[0104] Optionally, the processor 31 is specifically used to determine that a partial beam failure has occurred when the first quality detection result is that the quality of all reference signals corresponding to any TRP in the first reference signal set within the preset time window is lower than a first preset threshold for a number of times greater than a preset number.

[0105] Optionally, the transceiver 32 is further configured to receive the first reference signal set configured by a network side device; or

[0106] The processor 31 is further configured to determine the first reference signal set according to a relationship of QCL type D in TCI-State of a control resource set.

[0107] Optionally, the first reference signal set includes a reference signal and an identifier of a transmission reception point to which the reference signal belongs; or

[0108] The first reference signal set includes multiple reference signal sets, and each reference signal set corresponds to a transmission and reception point.

[0109] Optionally, the second reference signal set includes a reference signal and an identifier of a transmission reception point to which the reference signal belongs;

[0110] The second reference signal set includes a plurality of reference signal sets, and each reference signal set corresponds to a transmission and reception point.

[0111] The embodiment of the present invention also provides a beam switching device, which is applied to network side equipment, such as Figure 5 As shown, it includes a processor 41 and a transceiver 42,

[0112] The transceiver 42 is used to send a first reference signal set to the terminal, where the reference signals in the first reference signal set have a corresponding relationship with the transmission reception point TRP and are used to detect beam failure.

[0113] In this embodiment, the network side device sends a first reference signal set to the terminal, so that the terminal detects the quality of the reference signals in the first reference signal set and determines whether a beam failure or a partial beam failure occurs. Through the technical solution of the present invention, the terminal can detect the occurrence of a partial beam failure, so that the terminal reports the detection result of the partial beam failure to the base station. The base station can instruct the terminal to switch to other available beams to continue multi-TRP transmission, which can ensure the reliability or transmission rate of communication and reduce the probability of link interruption.

[0114] Optionally, the transceiver 42 is further configured to send a second reference signal set to the terminal, where the reference signals in the second reference signal set correspond to transmission and reception points and are used to discover alternative beams.

[0115] An embodiment of the present invention further provides a communication device, comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the computer program implements the steps in the beam switching method described above when executed by the processor.

[0116] The communication device may be a network side device or a terminal.

[0117] An embodiment of the present invention further provides a computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, the steps in the beam switching method described above are implemented.

[0118] It is understood that the embodiments described herein may be implemented using hardware, software, firmware, middleware, microcode, or a combination thereof. For hardware implementation, the processing unit may be implemented in one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), general-purpose processors, controllers, microcontrollers, microprocessors, other electronic units for performing the functions described herein, or a combination thereof.

[0119] For software implementation, the techniques described herein can be implemented by modules (e.g., procedures, functions, etc.) that perform the functions described herein. The software code can be stored in a memory and executed by a processor. The memory can be implemented in the processor or external to the processor.

[0120] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0121] Those skilled in the art will appreciate that embodiments of the present invention may be provided as methods, apparatus, or computer program products. Thus, embodiments of the present invention may take the form of a fully hardware embodiment, a fully software embodiment, or an embodiment combining software and hardware. Furthermore, embodiments of the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0122] The embodiments of the present invention are described with reference to the flowcharts and / or block diagrams of the methods, user terminal devices (systems), and computer program products according to the embodiments of the present invention. It should be understood that each process and / or block in the flowcharts and / or block diagrams, as well as the combination of the processes and / or blocks in the flowcharts and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing user terminal device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing user terminal device generate instructions for implementing the process in the flowchart. Figure 1 a process or multiple processes and / or boxes Figure 1A device that provides the functions specified in a block or multiple blocks.

[0123] These computer program instructions may also be stored in a computer readable memory that can direct a computer or other programmable data processing user terminal device to operate in a specific manner, so that the instructions stored in the computer readable memory produce a manufactured product including an instruction device, which implements the process Figure 1 a process or multiple processes and / or boxes Figure 1 The function specified in one or more boxes.

[0124] These computer program instructions can also be loaded onto a computer or other programmable data processing user terminal device, so that a series of operating steps are executed on the computer or other programmable user terminal device to produce a computer-implemented process, thereby providing instructions for implementing the process in the computer or other programmable user terminal device. Figure 1 a process or multiple processes and / or boxes Figure 1 The steps for the function specified in one or more boxes.

[0125] Although the preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they are aware of the basic creative concepts. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the embodiments of the present invention.

[0126] It should also be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include," "comprise," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or user terminal device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article, or user terminal device. In the absence of further limitations, an element defined by the phrase "includes a ..." does not exclude the presence of other identical elements in the process, method, article, or user terminal device that includes the element.

[0127] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary personnel in this technical field, several improvements and modifications can be made without departing from the principles described in the present invention. These improvements and modifications are also within the scope of protection of the present invention.

Claims

1. A beam switching method, characterized in that: Applied to terminals, including: detecting quality of a reference signal in a first reference signal set to obtain a first quality detection result, where the reference signals in the first reference signal set have a corresponding relationship with a transmission reception point (TRP) for detecting beam failure; the corresponding relationship indicating that the first reference signal set includes multiple reference signal sets (RS Sets), each reference signal set (RS Set) corresponds to a TRP, and the first reference signal set is configured by a base station; determining whether beam failure or partial beam failure occurs according to the first quality detection result; Detecting quality of reference signals in a second reference signal set to obtain a second quality detection result, where the reference signals in the second reference signal set correspond to transmission and reception points and are used to discover candidate beams, including: The correspondence relationship indicates that: the second reference signal set includes multiple reference signal sets, each reference signal set corresponds to a transmission reception point TRP, and the correspondence between the reference signal and the TRP is obtained through the correspondence relationship. The terminal detects that the quality of a reference signal in the second reference signal set meets the threshold, and the MAC layer selects a reference signal in the second reference signal set; the terminal sends information based on the random access opportunity and random access pilot corresponding to the reference signal selected by the MAC layer.

2. The beam switching method according to claim 1, wherein: The determining whether beam failure or partial beam failure occurs according to the first quality detection result includes: When the first quality detection result is that the quality of all reference signals corresponding to any TRP in the first reference signal set within the preset time window is lower than the first preset threshold for more than the preset number of times, it is determined that a partial beam failure has occurred.

3. The beam switching method according to claim 1, wherein: The reference signal selected by the MAC layer is a reference signal whose quality meets a threshold.

4. The beam switching method according to claim 1, wherein: The terminal monitors the reply information of the network side device on the CORESET or SearchSpace configured by the network side device; The response information is a response to a partial beam failure or a beam failure.

5. A beam switching method, characterized in that: Applicable to network-side devices, including: Sending a first reference signal set to the terminal, where reference signals in the first reference signal set have a correspondence with a transmission reception point (TRP) for detecting beam failure; the correspondence indicates that the first reference signal set includes multiple reference signal sets (RS Sets), each reference signal set (RS Set) corresponds to a TRP, and the first reference signal set is configured by the base station; Sending a second reference signal set to the terminal, where reference signals in the second reference signal set correspond to transmission and reception points and are used to discover candidate beams, including: The correspondence relationship indicates that: the second reference signal set includes multiple reference signal sets, each reference signal set corresponds to a transmission reception point TRP, and the correspondence between the reference signal and the TRP is obtained through the correspondence relationship. The terminal detects that the quality of a reference signal in the second reference signal set meets the threshold, and the MAC layer selects a reference signal in the second reference signal set; the terminal sends information based on the random access opportunity and random access pilot corresponding to the reference signal selected by the MAC layer.

6. The beam switching method according to claim 5, characterized in that: The reference signal selected by the MAC layer is a reference signal whose quality meets a threshold.

7. The beam switching method according to claim 5, characterized in that: The terminal monitors the response information of the network side device to partial beam failure or beam failure on the CORESET or SearchSpace configured by the network side device.

8. A beam switching device, characterized in that: Applied to terminals, including processors and transceivers, The processor is configured to detect quality of reference signals in a first reference signal set, obtain a first quality detection result, where the reference signals in the first reference signal set have a corresponding relationship with a transmission reception point TRP, and is used to detect beam failure; and determine whether beam failure or partial beam failure occurs according to the first quality detection result; The correspondence relationship between the reference signals and the TRP in the first reference signal set is indicated as follows: the first reference signal set includes multiple reference signal sets RS Set, each reference signal set RS Set corresponds to a TRP, and the first reference signal set is configured by the base station; The processor is further configured to detect quality of reference signals in a second reference signal set to obtain a second quality detection result, where the reference signals in the second reference signal set have a corresponding relationship with the transmission and reception points, and is used to discover candidate beams, including: The correspondence relationship indicates that: the second reference signal set includes multiple reference signal sets, each reference signal set corresponds to a transmission reception point TRP, and the correspondence between the reference signal and the TRP is obtained through the correspondence relationship. The terminal detects that the quality of a reference signal in the second reference signal set meets the threshold, and the MAC layer selects a reference signal in the second reference signal set; the terminal sends information based on the random access opportunity and random access pilot corresponding to the reference signal selected by the MAC layer.

9. The beam switching device according to claim 8, characterized in that: The processor is specifically used to determine that a partial beam failure occurs when the first quality detection result is that the quality of all reference signals corresponding to any TRP in the first reference signal set within the preset time window is lower than the first preset threshold for more than a preset number of times.

10. The beam switching device according to claim 8, wherein: The second reference signal set includes reference signals and transmission reception point identifiers to which the reference signals belong; The second reference signal set includes a plurality of reference signal sets, and each reference signal set corresponds to a transmission and reception point.

11. The beam switching device according to claim 8, wherein: The reference signal selected by the MAC layer is a reference signal whose quality meets a threshold.

12. The beam switching device according to claim 8, wherein: The terminal monitors the reply information of the network side device on the CORESET or SearchSpace configured by the network side device; The response information is a response to a partial beam failure or a beam failure.

13. A beam switching device, characterized in that: Applied to network side equipment, including processors and transceivers, The transceiver is configured to send a first reference signal set to the terminal, where the reference signals in the first reference signal set have a corresponding relationship with the transmission reception point TRP, and are used to detect beam failure; The correspondence relationship between the reference signals and the TRP in the first reference signal set is indicated as follows: the first reference signal set includes multiple reference signal sets RS Set, each reference signal set RS Set corresponds to a TRP, and the first reference signal set is configured by the base station; The transceiver is further configured to send a second reference signal set to the terminal, where reference signals in the second reference signal set have a corresponding relationship with transmission and reception points, and are used to discover candidate beams; The correspondence relationship indicates that: the second reference signal set includes multiple reference signal sets, each reference signal set corresponds to a transmission reception point TRP, a correspondence relationship between reference signals and TRPs is obtained through the correspondence relationship, and when the terminal detects that the quality of a reference signal in the second reference signal set meets a threshold, the MAC layer selects a reference signal in the second reference signal set; The terminal sends information according to the random access opportunity and random access pilot corresponding to the reference signal selected by the MAC layer.

14. The beam switching device according to claim 13, wherein: The reference signal selected by the MAC layer is a reference signal whose quality meets a threshold.

15. The beam switching device according to claim 13, wherein: The terminal monitors the response information of the network side device to partial beam failure or beam failure on the CORESET or SearchSpace configured by the network side device.

16. A communication device, characterized in that: include: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the computer program is executed by the processor, the steps in the beam switching method according to any one of claims 1 to 7 are implemented.

17. A computer-readable storage medium, characterized in that The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps in the beam switching method according to any one of claims 1 to 7 are implemented.

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