Method and apparatus for physical uplink control channel beam recovery - Patents.com

Abstract

An embodiment of the present disclosure discloses a method and an apparatus for physical uplink control channel beam recovery, which is applied to the field of communication technology, in which the method performed by a terminal device includes: detecting that a first transmission / reception point (TRP) is in a beam failure state; determining a recovery beam of a physical uplink control channel (PUCCH); and then performing communication transmission through the determined recovery beam of the PUCCH, thereby minimizing the impact on communication transmission and improving the quality and efficiency of communication transmission.

Description

[Technical field]

[0001] The present disclosure relates to the field of communication technologies, and in particular to a method and apparatus for physical uplink control channel beam recovery. [Background technology]

[0002] Typically, new radio technologies (NR) must use beam-based transmission and reception to ensure coverage due to fast attenuation of high-frequency channels. In NR, the control channel also uses beam-based transmission and reception, so the terminal device may experience beam failure when the terminal device moves or the antenna direction rotates. If any of the transmission and reception points (TRPs) that provide communication services to the terminal are in a beam failure state, normal communication may not be possible, which may affect communication transmission. Summary of the Invention

[0003] The embodiments of the present disclosure provide a method and an apparatus for physical uplink control channel beam recovery, which can be applied to the communication technology field. When a terminal device detects that a first TRP is in a beam failure state, the terminal device can determine a recovery beam of a physical uplink control channel (PUCCH) and then perform communication transmission using the determined recovery beam of the PUCCH. This can minimize the impact on communication transmission and improve the quality and efficiency of communication transmission.

[0004] In a first aspect, an embodiment of the present disclosure provides a method for physical uplink control channel beam recovery, the method being performed by a terminal device and including the steps of: detecting that a first transmission / reception point (TRP) is in a beam failure state; and determining a recovery beam for a physical uplink control channel (PUCCH).

[0005] In this aspect, when the terminal device detects that the first TRP is in a beam failure state, the terminal device can determine a recovery beam of the PUCCH, and then perform communication transmission through the determined recovery beam of the PUCCH, thereby minimizing the impact on communication transmission and improving the quality and efficiency of communication transmission.

[0006] Optionally, the step of determining a recovery beam for the physical uplink control channel (PUCCH) includes a step of determining that the recovery beam for the PUCCH is a beam corresponding to a physical random access channel (PRACH) used by the terminal device.

[0007] In this embodiment, after the terminal device determines that the recovery beam of the PUCCH is a beam corresponding to the PRACH, the terminal device can perform communication transmission through the determined recovery beam of the PUCCH, thereby minimizing the impact on communication transmission and improving the quality and efficiency of communication transmission.

[0008] Optionally, the method further includes determining, based on a mapping relationship between a PRACH resource and a TRP, that a TRP corresponding to a PRACH resource used by the terminal device is a first TRP.

[0009] Optionally, the step of determining a recovery beam of the physical uplink control channel (PUCCH) includes a step of transmitting first instruction information, the first instruction information including a first beam identifier, and a step of determining that the recovery beam of the PUCCH is the first beam corresponding to the first beam identifier.

[0010] In this aspect, the terminal device can instruct the network device to use a first beam identifier, and determine that the recovery beam of the PUCCH is the first beam corresponding to the first beam identifier, and then perform communication transmission using the determined recovery beam of the PUCCH, thereby minimizing the impact on communication transmission and improving the quality and efficiency of communication transmission.

[0011] Optionally, the step of transmitting the first indication information includes transmitting the first indication information to a physical uplink Yes The method includes transmitting the first indication information based on a channel (PUSCH) medium access control (MAC) control unit (CE).

[0012] In this aspect, the terminal device may transmit the first indication information through a PUSCH MAC CE, making the manner of transmitting the first indication information more abundant and diverse.

[0013] Optionally, the first instruction information further includes a first TRP, and the step of determining that the recovery beam of the PUCCH is a first beam corresponding to the first beam identifier includes the step of determining that the recovery beam of the PUCCH associated with the first TRP is a first beam corresponding to the first beam identifier.

[0014] In this aspect, after the terminal device determines that the recovery beam of the PUCCH associated with the first TRP is the first beam corresponding to the first beam identifier, the terminal device can perform communication transmission in the determined recovery beam of the PUCCH, thereby minimizing the impact on the communication transmission and improving the quality and efficiency of the communication transmission.

[0015] Optionally, when a second TRP is in a beam failure state, a scheduling request for beam failure recovery is transmitted using a PUCCH associated with the first TRP, and the second TRP is different from the first TRP.

[0016] Optionally, the first indication information further includes a first TRP, and the step of determining that the recovery beam of the PUCCH is a first beam corresponding to the first beam identifier includes: The method includes a step of determining that a recovery beam of a PUCCH associated with a second TRP is a first beam corresponding to the first beam identifier, the second TRP being different from the first TRP.

[0017] In this aspect, after the terminal device determines that the recovery beam of the PUCCH associated with the second TRP is the first beam corresponding to the first beam identifier, the terminal device can perform communication transmission in the determined recovery beam of the PUCCH, thereby minimizing the impact on the communication transmission and improving the quality and efficiency of the communication transmission.

[0018] Optionally, when the second TRP is in a beam failure state, a scheduling request for beam failure recovery is transmitted using a PUCCH associated with the second TRP.

[0019] Optionally, the step of determining a recovery beam for the PUCCH comprises: The method includes determining that the recovery beam for the PUCCH is a beam corresponding to a specified control resource set.

[0020] In this embodiment, after the terminal device determines that the PUCCH recovery beam is a beam corresponding to the designated control resource set, the terminal device can perform communication transmission through the determined PUCCH recovery beam, thereby minimizing the impact on communication transmission and improving the quality and efficiency of communication transmission.

[0021] Alternatively, the step of determining that the designated control resource set is a control resource set with a smallest corresponding control resource set number in a recent time unit that needs to monitor a search space set, or the step of determining that the designated control resource set is a control resource set with a smallest corresponding control resource set number among the control resource sets belonging to a first control resource set pool in a recent time unit that needs to monitor a search space set, wherein the first control resource set pool index is the PUCC H The method further includes the step of associating.

[0022] In this aspect, the terminal device can determine the designated control resource set in various ways, making the manner of determining the designated control resource set more rich and diverse.

[0023] Selectively, The method further includes a step of determining a first control resource set pool index associated with the PUCCH based on association relationship setting information between the PUCCH and a control resource set pool index, or a step of determining a first control resource set pool index associated with the PUCCH based on association relationship setting information between the PUCCH and a reference signal set index for beam failure detection.

[0024] In this aspect, the terminal device can determine the first control resource set index in various manners, making the manner of determining the first control resource set index more rich and diverse.

[0025] Selectively, The method further includes determining that a beam corresponding to the specified control resource set is a beam corresponding to a physical random access channel (PRACH) used by the terminal device.

[0026] In this aspect, the terminal device can determine that a beam corresponding to a specified control resource set is a beam corresponding to a PRACH, thereby making the manner of determining a beam corresponding to a specified control resource set more rich and diverse.

[0027] Selectively, The method further includes a step of transmitting second instruction information, wherein the second instruction information includes a second beam identifier, and a step of determining that the beam corresponding to the specified control resource set is a second beam corresponding to the second beam identifier.

[0028] In this aspect, the terminal device can indicate a second beam identifier to the network device through the second instruction information to determine that the beam corresponding to the specified control resource set is the corresponding second beam, thereby making the manner of determining the beam corresponding to the specified control resource set more rich and diverse.

[0029] Optionally, the second indication information includes at least one of a cell identifier in a beam failure state, a TRP identifier in a beam failure state, a second beam identifier, and a TRP identifier and / or a cell identifier associated with the second beam identifier.

[0030] Optionally, the TRP identifier includes at least one of a TRP identification number, a control resource set pool index identifier, and a beam failure detection reference signal set identifier.

[0031] Optionally, the PUCCH includes at least one of a PUCCH for transmitting a scheduling request, a PUCCH for transmitting a beam failure recovery scheduling request, and a PUCCH for transmitting a non-scheduling request.

[0032] In a second aspect, an embodiment of the present disclosure provides a communication device, which realizes some or all of the functions of the terminal device in the method described in the first aspect above. For example, the functions of the communication device may include some or all of the functions in the present disclosure, or may include a function to independently implement any of the embodiments in the present disclosure. These functions may be realized by hardware, or may be realized by hardware executing corresponding software. The hardware or software includes one or more units or modules corresponding to the above functions.

[0033] In one embodiment, the configuration of the communication device may include a transceiver module and a processing module configured to support the communication device to perform the corresponding functions in the above-mentioned manner. The transceiver module is used to support communication between the communication device and other devices. The communication device may further include a storage module for coupling to the transceiver module and the processing module, and for holding computer programs and data required for the communication device.

[0034] As examples, the processing module may be a processor, the transceiver module may be a transceiver or a communication interface, and the storage module may be a memory.

[0035] When the communication device provided by the present disclosure detects that the first TRP is in a beam failure state, the communication device can determine a recovery beam for PUCCH, and then perform communication transmission using the determined recovery beam for PUCCH, thereby minimizing the impact on communication transmission and improving the quality and efficiency of communication transmission.

[0036] In a third aspect, an embodiment of the present disclosure provides a communication device, the communication device including a processor, the processor invoking a computer program in a memory to perform the method according to the first aspect above.

[0037] In a fourth aspect, an embodiment of the present disclosure provides a communications device, the communications device including a processor and a memory, the memory storing a computer program, the processor executing the computer program stored in the memory to cause the communications device to perform a method according to the first aspect above.

[0038] In a fifth aspect, an embodiment of the present disclosure provides a communication device, the device including a processor and an interface circuit, the interface circuit being used to receive and transmit code instructions to the processor, the processor executing the code instructions to perform the method according to the first aspect above.

[0039] In a sixth aspect, an embodiment of the present disclosure provides a physical uplink control channel beam recovery system, the system including a communication device according to the second aspect, or the system including a communication device according to the third aspect, or the system including a communication device according to the fourth aspect, or the system including a communication device according to the fifth aspect.

[0040] In a seventh aspect, an embodiment of the present invention provides a computer-readable storage medium storing instructions for a terminal device as defined above, the instructions, when executed, implementing the method as defined in the first aspect above.

[0041] In an eighth aspect, the present disclosure further comprises a computer program product comprising a computer program which, when executed on a computer, causes the computer to perform the method according to the first aspect above.

[0042] In a ninth aspect, the present disclosure provides a chip system comprising at least one processor and an interface to support a terminal device to realize functions related to the first aspect, e.g., to determine or process at least one of the data and information related to the above method. In a possible design, the chip system further comprises a memory for holding computer programs and data required for the terminal device. The chip system may be comprised of chips or may include chips or other discrete devices.

[0043] In a tenth aspect, the present disclosure provides a computer program, which when run on a computer causes the computer to perform the method according to the first aspect above. [Brief description of the drawings]

[0044] In order to clearly describe the technical means in the embodiments of the present disclosure or the background art, the following describes drawings necessary for the embodiments of the present disclosure or the background art. [Figure 1] FIG. 1 is an architecture schematic diagram of a communication system provided by an embodiment of the present disclosure. [Diagram 2] 1 is a schematic flowchart of a method for physical uplink control channel beam recovery provided by one embodiment of the present disclosure. [Diagram 3] 1 is a schematic flowchart of a method for physical uplink control channel beam recovery provided by another embodiment of the present disclosure. [Figure 4] 1 is a schematic flowchart of a method for physical uplink control channel beam recovery provided by another embodiment of the present disclosure. [Diagram 5] 1 is a schematic flowchart of a method for physical uplink control channel beam recovery provided by another embodiment of the present disclosure. [Figure 6] 1 is a schematic flowchart of a method for physical uplink control channel beam recovery provided by another embodiment of the present disclosure. [Figure 7] 1 is a schematic flowchart of a method for physical uplink control channel beam recovery provided by another embodiment of the present disclosure. [Figure 8] 1 is a schematic flowchart of a method for physical uplink control channel beam recovery provided by another embodiment of the present disclosure. [Figure 9] 1 is a schematic flowchart of a method for physical uplink control channel beam recovery provided by another embodiment of the present disclosure. [Figure 10] 1 is a schematic flowchart of a method for physical uplink control channel beam recovery provided by another embodiment of the present disclosure. [Figure 11] 1 is a schematic flowchart of a method for physical uplink control channel beam recovery provided by another embodiment of the present disclosure. [Figure 12] 1 is a schematic flowchart of a method for physical uplink control channel beam recovery provided by another embodiment of the present disclosure. [Figure 13] 1 is a schematic flowchart of a method for physical uplink control channel beam recovery provided by another embodiment of the present disclosure. [Figure 14] FIG. 1 is a schematic configuration diagram of a communication device according to an embodiment of the present disclosure. [Figure 15] FIG. 13 is a schematic configuration diagram of a communication device according to another embodiment of the present disclosure. [Figure 16] FIG. 1 is a schematic diagram of a chip according to an embodiment of the present disclosure. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0045] To facilitate understanding, we first introduce some terminology relevant to this disclosure.

[0046] 1. Physical uplink control channel (PUCCH)

[0047] The PUCCH can be used by a terminal device to transmit information regarding uplink scheduling, such as a scheduling request (SR), a hybrid automatic repeat request (HARQ), and channel status information (CSI) to a network device.

[0048] 2, physical uplink Yes Channel (physical uplink shared channel, PUSCH)

[0049] As the main uplink data barrier channel of the physical layer, the PUSCH is used for scheduling and transmitting uplink data, and may transmit control information, user service information, broadcast service information, and so on.

[0050] 3. Beam failure

[0051] If the radio link quality of each reference signal in the reference signal set used to detect the TRP beam state is below a threshold, then the TRP is considered to be in a beam failure state.

[0052] EMBODIMENTS OF THE DISCLOSURE In order to better understand the disclosed physical uplink control channel beam recovery method, the following first describes a communication system to which an embodiment of the present disclosure is applied.

[0053] Referring to Fig. 1, Fig. 1 is an architecture schematic diagram of a communication system provided by an embodiment of the present disclosure. The communication system may include, but is not limited to, one network device and one terminal device, and the number and form of devices shown in Fig. 1 are merely exemplary and do not limit the embodiment of the present disclosure, and in actual applications, two or more network devices and two or more terminal devices may be included. The communication system shown in Fig. 1 is, for example, composed of one network device 11 and one terminal device 12.

[0054] It should be noted that the technical solutions of the embodiments of the present disclosure can be applied to various communication systems, such as long term evolution (LTE) systems, 5th generation (5G) mobile communication systems, 5G new radio (NR) systems, or other future new mobile communication systems.

[0055] The network device 11 in the embodiment of the present disclosure is a network-side entity for transmitting or receiving a signal. For example, the network device 11 may be an evolved base station (eNB), a transmission reception point (TRP), a next generation base station (gNB) in an NR system, a base station in other future mobile communication systems, or an access node in a wireless fidelity (WiFi) system. The embodiment of the present disclosure does not limit the specific technology and specific device form adopted in the network device. The network device provided by the embodiment of the present disclosure may be composed of a central unit (CU) and a distributed unit (DU), where the CU is also called a control unit, and the protocol layer of the network device, for example, a base station, may be separated using a CU-DU structure, with some protocol layer functions being placed in the CU centralized control, and the remaining or all protocol layer functions being distributed to the DU, and the CU centrally controls the DU.

[0056] The terminal device 12 in the embodiment of the present disclosure is an entity for receiving or transmitting a user-side signal such as a mobile phone. The terminal device is also called a terminal, a user equipment (UE), a mobile station (MS), a mobile terminal (MT), etc. Examples of the terminal device include automobiles with communication functions, smart cars, mobile phones, wearable devices, tablets, personal computers with wireless transmission and reception functions, virtual reality (VR) terminal devices, augmented reality (AR) terminal devices, wireless terminal devices in industrial control, wireless terminal devices in self-driving, wireless terminal devices in remote medical surgery, wireless terminal devices in smart grids, wireless terminal devices for transportation safety, wireless terminal devices for smart cities, wireless terminal devices for smart homes, etc. The embodiments of the present disclosure do not limit the specific technology and specific device form adopted in the terminal device.

[0057] It should be noted that the communication system described in the embodiments of the present disclosure is intended to more clearly explain the technical solutions of the embodiments of the present disclosure, and is not limited to the technical solutions provided in the embodiments of the present disclosure. It will be understood by those skilled in the art that as system architectures evolve and new business scenarios emerge, the technical means provided in the embodiments of the present disclosure can be similarly applied to similar technical problems.

[0058] The physical uplink control channel beam recovery method and apparatus provided by the present disclosure are introduced in detail below in conjunction with the accompanying drawings.

[0059] Please refer to Fig. 2, which is a schematic flowchart of a method of physical uplink control channel beam recovery provided by an embodiment of the present disclosure, which is executed by a terminal device. As shown in Fig. 2, the method includes, but is not limited to, the following steps:

[0060] Step 21, the terminal device detects that the first transmitting / receiving point is in a beam failure state and determines a recovery beam for the physical uplink control channel.

[0061] Typically, in NR, because high frequency channels attenuate quickly, it is necessary to use beam-based transmission and reception to ensure coverage. In NR, the control channel also uses beam-based transmission and reception, so if the terminal device moves or the antenna direction rotates, the terminal device may experience beam failure. If any of the TRPs that provide communication services to the terminal is in a beam failure state, normal communication may not be possible, which may affect communication transmission.

[0062] In an embodiment of the present disclosure, when the terminal device detects that the first TRP is in a beam failure state, the terminal device can determine a recovery beam of the PUCCH, and then perform communication transmission with the network device through the determined recovery beam of the PUCCH, thereby minimizing the impact on communication transmission and improving the quality and efficiency of communication transmission.

[0063] In addition, the beam in each embodiment of the present disclosure may be a quasi colocation (QCL) type D in a transmission configuration indication (TCI) state identity (ID), or spatial relation info, or an airspace filter, or an airspace setting, or an airspace reception parameter, etc., but the present disclosure is not limited thereto.

[0064] Optionally, the PUCCH includes at least one of a PUCCH for transmitting a scheduling request, a PUCCH for transmitting a beam failure recovery (BFR) scheduling request, and a PUCCH for transmitting a non-scheduling request.

[0065] Here, the non-scheduling request may be a hybrid automatic repeat request acknowledgement (HARQ ACK) feedback, a CSI feedback, or the like, but the present disclosure is not limited thereto.

[0066] In addition, because the usage of the PUCCH is different, when the terminal device detects that the first TRP is in a beam failure state, the recovery beam of the PUCCH determined may be the same or different, but the present disclosure is not limited thereto.

[0067] By implementing the embodiment of the present disclosure, when the terminal device detects that the first TRP is in a beam failure state, the terminal device can determine a recovery beam for PUCCH, and then perform communication transmission through the determined recovery beam for PUCCH, thereby minimizing the impact on communication transmission and improving the quality and efficiency of communication transmission.

[0068] Please refer to Fig. 3, which is a schematic flowchart of a method of physical uplink control channel beam recovery provided by an embodiment of the present disclosure, which is executed by a terminal device. As shown in Fig. 3, the method includes, but is not limited to, the following steps:

[0069] Step 31, the terminal device detects that the first TRP is in a beam failure state and determines that the recovery beam of the PUCCH is a beam corresponding to the physical random access channel (PRACH).

[0070] For example, if the terminal device detects that the first TRP is in a beam failure state, normal communication may not be possible, which may affect communication transmission. Then, the terminal device can use a random access procedure to perform beam recovery, and if the beam used by the terminal device in the physical random access channel (PRACH) is beam #1, the terminal device can determine that the recovery beam for the PUCCH is beam #1 corresponding to the RPACH, and then communicate and transmit with the network device in beam #1, thereby minimizing the impact on communication transmission.

[0071] Note that the above examples are merely examples and do not limit the methods of determining the beam corresponding to the PRACH and the recovery beam for the PUCCH in the embodiments of the present disclosure.

[0072] By implementing the embodiment of the present disclosure, when the terminal device detects that the first TRP is in a beam failure state, the terminal device can determine that the recovery beam of the PUCCH is the beam corresponding to the PRACH, and then perform communication transmission through the determined recovery beam of the PUCCH, thereby minimizing the impact on communication transmission and improving the quality and efficiency of communication transmission.

[0073] Please refer to Figure 4, which is a schematic flowchart of a method of physical uplink control channel beam recovery provided by an embodiment of the present disclosure, which is executed by a terminal device. As shown in Figure 4, the method includes, but is not limited to, the following steps:

[0074] Step 41: The terminal device detects that the first TRP is in a beam failure state, and determines, based on the mapping relationship between the PRACH resource and the TRP, that the TRP corresponding to the PRACH resource used by the terminal device is the first TRP.

[0075] Here, the PRACH resource includes a preamble or a random access channel occasion (RO), and each RO may include one time-frequency resource. Furthermore, the preamble may typically include a cyclic prefix (CP), a sequence, etc., and the present disclosure is not limited thereto.

[0076] It should be noted that different PRACHs may correspond to different preambles, although this disclosure is not limited in this respect.

[0077] Alternatively, the mapping relationship between the PRACH preamble and the TRP can be set in a protocol specification or a network device.

[0078] For example, in the protocol specification, PRACH preamble #1 corresponds to TRP #1, PRACH preamble #2 corresponds to TRP #2, and PRACH preamble #3 corresponds to TRP #3. When a terminal device uses PRACH preamble #2 for random access, it can search for this mapping relationship to determine that PRACH preamble #2 corresponds to TRP #2, and can determine that TRP #2 is the first TRP.

[0079] Alternatively, the mapping relationship between the RO of the PRACH and the TRP can be set in a protocol specification or a network device.

[0080] For example, in the protocol specification, PRACH RO#1 corresponds to TRP#1, PRACH RO#2 corresponds to TRP#2, and PRACH RO#3 corresponds to TRP#3. When a terminal device performs random access and uses PRACH preamble#2, it can search for this mapping relationship to determine that PRACH preamble#2 corresponds to TRP#2, and can determine that TRP#2 is the first TRP.

[0081] Note that the above example is merely an example, and is not limited to the correspondence relationship between the PRACH resource and the TRP and the method of determining the first TRP in the embodiment of the present disclosure.

[0082] Step 42, determining that the recovery beam of the PUCCH associated with the first TRP is the beam corresponding to the PRACH.

[0083] Here, the association between the PUCCH and the first TRP can be set by a protocol specification or a network device, but the present disclosure is not limited thereto.

[0084] For example, if the PRACH corresponds to beam #1, it can determine that the recovery beam for the PUCCH associated with the first TRP is beam #1, and perform communication transmission via beam #1 and the network device, thereby minimizing the impact on communication transmission.

[0085] Note that the above example is merely an example and does not limit the method of determining a beam corresponding to PRACH and a recovery beam for PUCCH in the embodiment of the present disclosure.

[0086] By implementing the embodiment of the present disclosure, when the terminal device detects that the first TRP is in a beam failure state, the terminal device can determine that the TRP corresponding to the PRACH resource used by the terminal device is the first TRP based on the mapping relationship between the PRACH resource and the TRP, and then determine that the recovery beam of the PUCCH associated with the first TRP is the beam corresponding to the PRACH, and perform communication transmission using the determined recovery beam of the PUCCH. This can minimize the impact on communication transmission and improve the quality and efficiency of communication transmission.

[0087] 5, which is a schematic flowchart of a method for physical uplink control channel beam recovery provided by an embodiment of the present disclosure, the method being executed by a terminal device. As shown in FIG. 5, the method includes, but is not limited to, the following steps:

[0088] Step 51: The terminal device detects that a first TRP is in a beam failure state and sends first indication information, where the first indication information includes a first beam identifier.

[0089] Here, the identifier pattern or expression format of the first beam may be preset, for example, reference signal identifier: 1, #1, etc., but the present disclosure is not limited thereto.

[0090] Step 52, determine that the recovery beam for the PUCCH is the first beam corresponding to the first beam identifier.

[0091] Optionally, the correspondence between the first beam identifier and the first beam can be set in a protocol specification or a network device.

[0092] For example, in the protocol specification, the first beam identifier: #1 corresponds to the first beam #1, and the first beam identifier: #2 corresponds to the first beam #2. When the first beam identifier included in the first instruction information is #2, the terminal device can determine that the recovery beam of the PUCCH is the first beam #2 based on the correspondence between the first beam identifier and the first beam, and then perform communication transmission through the first beam #2 and the network device, thereby minimizing the impact on communication transmission and improving the quality and efficiency of communication transmission.

[0093] By implementing an embodiment of the present disclosure, when a terminal device detects that a first TRP is in a beam failure state, after sending first instruction information, the terminal device can determine that the recovery beam of the PUCCH is the first beam corresponding to the first beam identifier included in the first instruction information, and perform communication transmission using the determined recovery beam of the PUCCH, thereby minimizing the impact on communication transmission and improving the quality and efficiency of communication transmission.

[0094] Please refer to Fig. 6, which is a schematic flowchart of a method of physical uplink control channel beam recovery provided by an embodiment of the present disclosure, which is executed by a terminal device. As shown in Fig. 6, the method includes, but is not limited to, the following steps:

[0095] Step 61: the terminal device detects that the first TRP is in a beam failure state, and sends first indication information to the PUSCH media access control unit, where the first indication information includes a first beam identifier.

[0096] Here, the medium access control (MAC) is mainly responsible for controlling and connecting the physical medium in the physical layer.

[0097] Alternatively, it can be set by a protocol rule or a network device: a specific bit can be added to a PUSCH MAC control element (CE), and the first beam identifier can be represented by a possible value of the added bit. Thus, after receiving a PUSCH MAC CE transmitted by a terminal device, the network device can know the first beam identifier, etc. according to the protocol rule and the possible value of the specific bit.

[0098] For example, in the protocol specification, four bits are added to MAC CE, and if the value of the four bits is 0001, the first beam identifier is represented as #1, if the value is 0010, the first beam identifier is represented as #2, if the value is 0011, the corresponding first beam identifier is #3, and so on. This allows the network device to know the first beam identifier, etc., based on the received MAC CE indication, but the present disclosure is not limited thereto.

[0099] In an embodiment of the present disclosure, the terminal device sends first indication information to the network device via MAC CE, so that the network device can know the first beam identifier, thereby enabling the terminal device and the network device to have a consistent understanding of the first beam and ensuring the normal progress of communication transmission.

[0100] Step 62, determine that the recovery beam for the PUCCH is the first beam corresponding to the first beam identifier.

[0101] Note that the specific content and implementation method of step 62 can be referred to in the explanations of the other embodiments of the present disclosure, so the explanation will be omitted here.

[0102] By implementing an embodiment of the present disclosure, when a terminal device detects that a first TRP is in a beam failure state, the terminal device can send first indication information based on a PUSCH MAC CE, and after determining that the recovery beam of the PUCCH is the first beam corresponding to the first beam identifier included in the first indication information, the terminal device can perform communication transmission using the determined recovery beam of the PUCCH, thereby minimizing the impact on the communication transmission and improving the quality and efficiency of the communication transmission.

[0103] Please refer to Figure 7, which is a schematic flowchart of a method of physical uplink control channel beam recovery provided by an embodiment of the present disclosure, which is executed by a terminal device. As shown in Figure 7, the method includes, but is not limited to, the following steps:

[0104] Step 71: The terminal device detects that the first TRP is in a beam failure state and sends first indication information, where the first indication information includes a first beam identifier and the first TRP.

[0105] In addition, in the embodiment of the present disclosure, the terminal device instructs the network device to use the first instruction information to indicate the first TRP, so that the network device can know that the first TRP is in a beam failure state, so that the two parties can have the same understanding, and ensure the normal progress of communication transmission.

[0106] Note that the specific content and implementation method of step 71 can be referred to in the explanations of the other embodiments of the present disclosure, so the explanation will be omitted here.

[0107] Step 72, determining that the recovery beam of the PUCCH associated with the first TRP is the first beam corresponding to the first beam identifier.

[0108] In the embodiment of the present disclosure, there may be a correlation between the TRP and the PUCCH. Thus, when the first TRP is in a beam failure state, after determining that the recovery beam of the PUCCH associated with the first TRP is the first beam corresponding to the first beam identifier, communication with the network device can be performed through the determined recovery beam of the PUCCH. Thus, the impact on communication transmission can be minimized, and the quality and efficiency of communication transmission can be guaranteed.

[0109] For example, in the protocol specification, the first beam identifier: #1 corresponds to the first beam #1, and the first beam identifier: #2 corresponds to the first beam #2. When the first beam identifier included in the first instruction information is #2, the terminal device can perform communication transmission by the first beam #2 and the network device after determining that the recovery beam of the PUCCH associated with the first TRP is the first beam #2 based on the correspondence between the first beam identifier and the first beam.

[0110] Or, PUSCH MAC CE indication: The first TRP is in a beam failure state and the first beam identifier of the first TRP is #1, thereby determining that the recovery beam of the PUCCH associated with the first TRP is the first beam #1.

[0111] Alternatively, there may be a second TRP different from the first TRP, and when the second TRP is in a beam failure state, a scheduling request for beam failure recovery of the second TRP can be sent using the PUCCH associated with the first TRP, allowing the network device to know the situation in a timely manner and providing normal guarantee of communication transmission.

[0112] It should be noted that in this case, the association relationship between PUCCH and TRP is that PUCCH#i is associated with TRP#i, and the beam of PUCCH#i points to TRP#i, so that when TRP#i is in a beam failure state, the terminal device can use the PUCCH associated with any other TRP, for example, TRP#j, to perform communication transmission, where I is different from j. This disclosure is not limited thereto.

[0113] By implementing the embodiment of the present disclosure, when the terminal device detects that the first TRP is in a beam failure state, the terminal device can transmit the first indication information, determine that the recovery beam of the PUCCH associated with the first TRP is the first beam corresponding to the first beam identifier included in the first indication information, and then perform communication transmission with the determined recovery beam of the PUCCH. This can minimize the impact on communication transmission and improve the quality and efficiency of communication transmission.

[0114] 8, which is a schematic flowchart of a method for physical uplink control channel beam recovery provided by an embodiment of the present disclosure, the method being executed by a terminal device. As shown in FIG. 8, the method includes, but is not limited to, the following steps:

[0115] Step 81: The terminal device detects that the first TRP is in a beam failure state and sends first indication information, where the first indication information includes a first beam identifier and the first TRP.

[0116] Note that the specific content and implementation method of step 81 can be referred to in the explanations of the other embodiments of the present disclosure, so the explanation will be omitted here.

[0117] Step 82, determining that a recovery beam for a PUCCH associated with a second TRP is a first beam corresponding to a first beam identifier, and the second TRP is different from the first TRP.

[0118] For example, the PUSCH MAC CE indicates that if the first TRP#1 is in a beam failure state and the first beam identifier of the first TRP#1 is #1, it can determine that the recovery beam of the PUCCH associated with TRP#2 is the first beam#1.

[0119] Optionally, in the embodiments of the present disclosure, there may be a second TRP different from the first TRP, so that when the second TRP is in a beam failure state, a PUCCH associated with the second TRP can be used to send a scheduling request for beam failure recovery, allowing the network device to know the situation in a timely manner and providing normal guarantee of communication transmission.

[0120] In this case, the association relationship between PUCCH and TRP is that PUCCH#i is associated with TRP#i, and the beam of PUCCH#i points to TRP#j, so when TRP#i is in a beam failure state, the terminal device can use the PUCCH associated with TRP#i. However, since the PUCCH#i associated with TRP#i points to TRP#j, when TRP#j is in a beam failure state, the beam of PUCCH#i of TRP#i needs to be updated, where i is different from j. This disclosure is not limited to this.

[0121] By implementing an embodiment of the present disclosure, when a terminal device detects that a first TRP is in a beam failure state, it can send first instruction information, determine that the recovery beam of a PUCCH associated with a second TRP is a first beam corresponding to a first beam identifier included in the first instruction information, and then perform communication transmission using the determined recovery beam of the PUCCH, thereby minimizing the impact on communication transmission and improving the quality and efficiency of communication transmission.

[0122] 9, which is a schematic flowchart of a method for physical uplink control channel beam recovery provided by an embodiment of the present disclosure, the method being executed by a terminal device. As shown in FIG. 9, the method includes, but is not limited to, the following steps:

[0123] Step 91, the terminal device detects that the first TRP is in a beam failure state and determines that the recovery beam of the PUCCH is the beam corresponding to the specified control resource set.

[0124] Here, there may be one or more control resource sets (CORESETs), and the specified control resource set may be any one, and the present disclosure is not limited thereto.

[0125] For example, when the terminal device detects that the first TRP is in a beam failure state and the designated control resource set is CORESET#1 and corresponds to beam#2, the terminal device can determine that the recovery beam of the PUCCH is beam#2, and perform communication transmission by beam#2 and the network device, thereby minimizing the impact on communication transmission and improving the quality and efficiency of communication transmission.

[0126] By implementing the embodiment of the present disclosure, when the terminal device detects that the first TRP is in a beam failure state, the terminal device can determine that the recovery beam of the PUCCH is a beam corresponding to the designated control resource set, and then perform communication transmission through the determined recovery beam of the PUCCH, thereby minimizing the impact on communication transmission and improving the quality and efficiency of communication transmission.

[0127] 10, which is a schematic flowchart of a method for physical uplink control channel beam recovery provided by an embodiment of the present disclosure, the method being executed by a terminal device. As shown in FIG. 10, the method includes, but is not limited to, the following steps:

[0128] Step 101: The terminal device detects that the first TRP is in a beam failure state, and determines that the designated control resource set is the control resource set with the smallest corresponding control resource set number in the most recent time unit that needs to monitor the search space set.

[0129] Here, the time unit may be a slot, a microslot, etc., but the present disclosure is not limited thereto.

[0130] Also, there may be one or more search space sets (SS sets), and each SS set may have one or more search spaces, although this disclosure is not limited in this respect.

[0131] Note that one SS set corresponds to one CORESET, and one CORESET can correspond to one or more SS sets.

[0132] In addition, the format or expression of the control resource set number may be preset, for example, CORESET 1, CORESET #1, etc., but the present disclosure is not limited thereto.

[0133] For example, the time unit is a time slot, and the recent SS set needs to be monitored in the slot, and there may be one CORESET, where the CORESET is the designated controlled resource set.

[0134] Alternatively, in a slot that needs to monitor the most recent SS set, if there is a possibility that multiple CORESETs exist, it is possible to confirm that the specified control resource set is the CORESET with the smallest number by comparing each CORESET number.

[0135] Note that the above example is merely an example and does not limit the number of CORESETs in the embodiment of the present disclosure.

[0136] Step 102, determine that the recovery beam of the PUCCH is the beam corresponding to the designated control resource set.

[0137] Note that the specific content and implementation method of step 102 can be referred to in the explanations of the other embodiments of the present disclosure, so the explanation will be omitted here.

[0138] By implementing the embodiment of the present disclosure, when the terminal device detects that the first TRP is in a beam failure state, the terminal device determines that the designated control resource set is the control resource set with the smallest corresponding control resource set number in the most recent time unit that needs to monitor the search space set, and then determines that the recovery beam of the PUCCH is the beam corresponding to the designated control resource set, and performs communication transmission through the determined recovery beam of the PUCCH, thereby minimizing the impact on communication transmission and improving the quality and efficiency of communication transmission.

[0139] 11, which is a schematic flowchart of a method for physical uplink control channel beam recovery provided by an embodiment of the present disclosure, the method being executed by a terminal device. As shown in FIG. 11, the method includes, but is not limited to, the following steps:

[0140] Step 111, the terminal device detects that the first TRP is in a beam failure state, and determines that the designated control resource set is the control resource set with the smallest corresponding control resource set number among the control resource sets belonging to the first control resource set pool in the most recent time unit that needs to monitor the search space set, and the first control resource set pool index is the PUCC H Associate.

[0141] Here, the time unit may be a slot, a microslot, etc., but this disclosure is not limited thereto.

[0142] Also, the first control resource set pool (CORESET pool) may have one CORESET or multiple CORESETs, but the present disclosure is not limited thereto.

[0143] For example, if the time unit is a slot, and the CORESETs corresponding to the slots that need to be monitored recently for the space set are CORESET#1, CORESET#2, CORESET#3, CORESET#4, and CORESET #5, respectively, and here, CORESET#2, CORESET#4, and CORESET #5 belong to the first control resource set pool, and CORESET#2 is the CORESET with the smallest number in the first control resource set pool, it can be decided to designate the CORESET as CORESET#2.

[0144] Note that the above examples are merely examples and do not limit the time unit, the first CORESET pool, and the like in the embodiments of the present disclosure.

[0145] Optionally, a first control resource set pool index associated with the PUCCH may be determined based on association relationship setting information between the PUCCH and a control resource set pool index (CORESET pool index).

[0146] Note that, although the association relationship setting information between the PUCCH and the CORESET pool index can be set by a protocol rule or a network device, the present disclosure is not limited to this.

[0147] For example, in the protocol specification, the CORESET pool index corresponding to the PUCCH for transmitting a scheduling request is CORESET pool index #1, and the CORESET pool index corresponding to the PUCCH for transmitting a non-scheduling request is CORESET pool index #2. If the PUCCH corresponding to the first TRP is currently the PUCCH for transmitting a scheduling request, it can be determined that the first CORESET pool index associated with this PUCCH is CORESET pool index #1.

[0148] Note that the above examples are merely examples and do not limit the CORESET pool index and its association with PUCCH in the embodiments of the present disclosure.

[0149] Alternatively, a first control resource set pool index associated with the PUCCH may be determined based on association setting information between the PUCCH and a beam failure detection reference signal (BFD RS) set index.

[0150] There may be a correspondence relationship between the BFD RS set index and the CORESET pool index, and the association setting information between the PUCCH and the BFD RS set index and / or the correspondence relationship between the BFD RS set index and the CORESET pool index can be set in a protocol specification or a network device, but the present disclosure is not limited to this.

[0151] For example, in the protocol specification, the BFD RS set index corresponding to the PUCCH for transmitting a scheduling request is BFD RS set index #1, the BFD RS set index corresponding to the PUCCH for transmitting a BFR scheduling request is BFD RS set index #2, the BFD RS set index #1 corresponds to CORESET pool index #1, and the BFD RS set index #2 corresponds to CORESET pool index #2. If a PUCCH is a PUCCH for transmitting a scheduling request, it can be determined that the first CORESET pool index associated with this PUCCH is CORESET pool index #1.

[0152] Note that the above examples are merely examples and do not limit the associations between the CORESET pool index, the BFD RS set index, and the PUCCH in the embodiments of the present disclosure.

[0153] Step 112, determine that the recovery beam of the PUCCH is the beam corresponding to the designated control resource set.

[0154] Note that the specific content and implementation method of step 112 can be referred to in the explanations of the other embodiments of the present disclosure, so the explanation will be omitted here.

[0155] By implementing the embodiment of the present disclosure, when the terminal device detects that the first TRP is in a beam failure state, the terminal device determines that the designated control resource set is the control resource set with the smallest corresponding control resource set number among the control resource sets belonging to the first control resource set pool in the most recent time unit that needs to monitor the search space set, and determines that the recovery beam of the PUCCH is the beam corresponding to the designated control resource set, and then performs communication transmission through the determined recovery beam of the PUCCH, thereby minimizing the impact on communication transmission and improving the quality and efficiency of communication transmission.

[0156] 12, which is a schematic flowchart of a method for physical uplink control channel beam recovery provided by an embodiment of the present disclosure, the method being executed by a terminal device. As shown in FIG. 12, the method includes, but is not limited to, the following steps:

[0157] Step 121, the terminal device detects that the first TRP is in a beam failure state and determines that the beam corresponding to the specified control resource set is the beam corresponding to the PRACH used by the terminal device.

[0158] For example, if the terminal device detects that the first TRP is in a beam failure state, in this case normal communication may not be possible and communication transmission may be affected. Then, the terminal device can perform beam recovery using a random access procedure, and if the beam used by the terminal device in the PRACH is beam #1, it can determine that the beam corresponding to the specified CORESET is beam #1.

[0159] Note that the above example is merely an example and does not limit the method of determining a beam corresponding to PRACH and a recovery beam for PUCCH in the embodiment of the present disclosure.

[0160] Note that the designated control resource set may be determined by a protocol agreement or a network device, or may be determined by a method according to another embodiment of the present disclosure, but the present disclosure is not limited thereto.

[0161] Step 122, determine that the recovery beam for the PUCCH is the beam corresponding to the designated control resource set.

[0162] Note that the specific content and implementation method of step 122 can be referred to in the explanations of the other embodiments of the present disclosure, so the explanation will be omitted here.

[0163] By implementing the embodiment of the present disclosure, when the terminal device detects that the first TRP is in a beam failure state, the terminal device can determine that the beam corresponding to the designated control resource set is the beam corresponding to the PRACH used by the terminal device, and determine that the recovery beam of the PUCCH is the beam corresponding to the designated control resource set, and then perform communication transmission using the determined recovery beam of the PUCCH, thereby minimizing the impact on communication transmission and improving the quality and efficiency of communication transmission.

[0164] 13, which is a schematic flowchart of a method for physical uplink control channel beam recovery provided by an embodiment of the present disclosure, the method being executed by a terminal device. As shown in FIG. 13, the method includes, but is not limited to, the following steps:

[0165] Step 131: the terminal device detects that the first TRP is in a beam failure state and sends second indication information, where the second indication information includes a second beam identifier.

[0166] Here, the format or expression of the identifier of the second beam may be pre-set, for example, the reference signal identifier may be 1, #1, A, etc., but the present disclosure is not limited thereto.

[0167] In an embodiment of the present disclosure, the terminal device can instruct the network device of a second beam identifier through the second instruction information, thereby enabling the terminal device and the network device to have a consistent understanding of the second beam and ensuring the normal progress of communication transmission.

[0168] Optionally, the second indication information includes at least one of a cell identifier in a beam failure state, a TRP identifier in a beam failure state, a second beam identifier, and a TRP identifier and / or a cell identifier associated with the second beam identifier.

[0169] Optionally, the association relationship between the second beam identifier and the TRP identifier and the cell identifier can be set in a protocol specification or a network device, but the present disclosure is not limited thereto.

[0170] Optionally, the TRP identifier includes at least one of an identification number of the TRP, a control resource set pool index identifier, and a beam failure detection reference signal set identifier.

[0171] Here, the format or expression of the TRP identifier may be preset, for example, #1, #2, etc., but the present disclosure is not limited thereto.

[0172] For example, the second indication information instructs the network device that the TRP identifier in the beam failure state is TRP#1 and the second beam identifier is #1. In this case, after receiving this second indication information, the network device can know that TRP#1 is in the beam failure state and the second beam identifier is #1. This allows the terminal device and the network device to have the same understanding of the TRP in the beam failure state and the second beam, thereby providing normal guarantee of communication transmission.

[0173] Or, the second indication information indicates that the second beam identifier is #2, the TRP identifier associated therewith is TRP#2, and the cell identifier is cell#1. In this case, after receiving this second indication information, the network device can know that the second beam identifier is #2, and the TRP identifier and the cell identifier associated therewith are TRP#2 and cell#1. This allows the terminal device and the network device to match the second beam and the TRP identifier and / or cell identifier associated therewith, thereby providing normal guarantee of communication transmission.

[0174] Note that the above example is merely an example and does not limit the instruction content of the second instruction information in the embodiment of the present disclosure.

[0175] Optionally, the terminal device may send second indication information based on the PUSCH MAC CE, where the second indication information includes a second beam identifier.

[0176] For example, it can be set by a protocol rule or a network device: a specific bit can be added to the PUSCH MAC CE, and the second beam identifier can be represented by a possible value of the added bit. In this way, after receiving the PUSCH MAC CE transmitted by the terminal device, the network device can know the second beam identifier and the like according to the protocol rule and the possible value of the specific bit, but the present disclosure is not limited thereto.

[0177] Step 132, determining that the beam corresponding to the specified control resource set is a second beam corresponding to a second beam identifier.

[0178] Optionally, the correspondence between the second beam identifier and the second beam can be set in a protocol specification or a network device.

[0179] For example, in the protocol rules, the second beam identifier #1 corresponds to the second beam #1, and the second beam identifier #2 corresponds to the second beam #2. When the second beam identifier included in the second instruction information is #1, the terminal device can determine that the beam corresponding to the specified control resource set is the second beam #2 based on the correspondence between the second beam identifier and the second beam, but the present disclosure is not limited thereto.

[0180] Note that the designated control resource set may be determined by a protocol agreement or a network device, or may be determined by a method according to another embodiment of the present disclosure, but the present disclosure is not limited thereto.

[0181] Step 133, determine that the recovery beam of the PUCCH is the beam corresponding to the specified control resource set.

[0182] Optionally, the terminal device may send second indication information based on the PUSCH MAC CE, where the second indication information includes a second beam identifier and a TRP identifier.

[0183] Optionally, the TRP identifier includes at least one of an identification number of the TRP, a control resource set pool index identifier, and a beam failure detection reference signal set identifier.

[0184] For example, if the TRP identifier is a CORESET pool index control resource set pool index identifier, the beam corresponding to the specified CORESET is the second beam indicated by the PUSCH MAC CE.

[0185] For example, when a PUSCH MAC CE indicates the second beam #1 of TRP#1, the recovery beam of the PUCCH on the CORESET corresponding to TRP#1 is the second beam #1, and when a PUSCH MAC CE indicates the second beam #2 of TRP#2, the recovery beam of the PUCCH on the CORESET corresponding to TRP#2 is the second beam #2.

[0186] Alternatively, if no second beam is found for a TRP, the PUSCH MAC CE may indicate that no second beam exists.

[0187] Alternatively, the correspondence between the TRP and the CORESET may be associated by the CORESET pool index, or by the BFD RS set index, or by the CORESET pool index and the BFD RS set ID, but the present disclosure is not limited thereto.

[0188] The specified CORESET may be the one with the smallest index among the CORESET pool indexes, the one with the largest index among them, or a specific one among them, such as the third index, but this disclosure does not limit this.

[0189] For example, in the protocol rules, TRP#i corresponds to CORESET pool index#i in a one-to-one manner, and each CORESET belongs to one of the CORESET pool indexes. If the second beam identifier indicated by the PUSCH MAC CE is #3, which corresponds to TRP#3, TRP#3 corresponds to CORESET pool index#2, and the specified control resource set is CORESET#2 in the control resource set pool, it can be determined that the beam corresponding to CORESET#2 is the second beam#3. Also, if CORESET#2 corresponds to PUCCH#1, it can be determined that the recovery beam of PUCCH#1 is the second beam#3.

[0190] Or, TRP#i corresponds one-to-one to BFD RS set#i, BFD RS set#i corresponds to CORESET pool index#i, and each CORESET belongs to one of the CORESET pool indexes.

[0191] For example, if the second beam identifier indicated by the PUSCH MAC CE is #1, which corresponds to TRP#1, TRP#1 corresponds to BFD RS set#1, and BFD RS set#1 corresponds to CORESET pool index#1, it can be determined that the beam corresponding to CORESET#i in CORESET pool index#1 is the second beam#1. Also, if CORESET#i corresponds to PUCCH#2, it can be determined that the recovery beam of PUCCH#2 is the second beam#1.

[0192] Note that the above examples are merely examples and do not limit the second instruction information, the TRP identifier, and the like in the embodiments of the present disclosure.

[0193] By implementing the embodiment of the present disclosure, when the terminal device detects that the first TRP is in a beam failure state, the terminal device can send the second indication information, determine that the beam corresponding to the designated control resource set is the second beam corresponding to the second beam identifier included in the second indication information, and then determine that the recovery beam of the PUCCH is the beam corresponding to the designated control resource set, and perform communication transmission with the determined recovery beam of the PUCCH. This can minimize the impact on communication transmission and improve the quality and efficiency of communication transmission.

[0194] In the above embodiment of the present disclosure, a method provided by the embodiment of the present disclosure is described from a terminal device. In order to realize each function of the method provided by the above embodiment of the present disclosure, the terminal device includes a hardware configuration and a software module, and can realize each of the above functions in the form of a hardware configuration, a software module, or a hardware configuration and a software module. Any of the above functions can be executed by a hardware configuration, a software module, or a hardware configuration plus a software module.

[0195] 14 is a schematic diagram of a communication device 140 provided by an embodiment of the present disclosure. The communication device 140 shown in the figure may include a processing module 1401.

[0196] The transceiver module may include a transmitting module and / or a receiving module, where the transmitting module realizes a transmitting function, the receiving module realizes a receiving function, and the transceiver module can realize a transmitting function and / or a receiving function.

[0197] It should be noted that the communication device 140 may be a terminal device, may be a device within a terminal device, or may be a device that can be used in conjunction with a terminal device.

[0198] The communications device 140 includes a processing module 1401 for the device to detect that a first transmission / reception point (TRP) is in a beam failure state and to determine a recovery beam for a physical uplink control channel (PUCCH).

[0199] Optionally, the processing module 1401 determines that the recovery beam of the PUCCH is a beam corresponding to a Physical Random Access Channel (PRACH).

[0200] Optionally, the processing module 1401 further determines, based on a mapping relationship between the PRACH resource and the TRP, that the TRP corresponding to the PRACH resource used by the device is the first TRP.

[0201] Optionally, the above-mentioned device 140 further includes a transceiver module for transmitting first instruction information, where the first instruction information includes a first beam identifier.

[0202] The processing module 1401 further determines that the recovery beam for the PUCCH is a first beam corresponding to the first beam identifier.

[0203] Optionally, the transceiver module is a physical uplink Yes The first indication information is transmitted based on a channel (PUSCH) medium access control (MAC) control unit (CE).

[0204] Optionally, the first instruction information further includes a first TRP, and the processing module determines that the recovery beam of a PUCCH associated with the first TRP is a first beam corresponding to the first beam identifier.

[0205] Optionally, when a second TRP is in a beam failure state, a scheduling request for beam failure recovery is transmitted using a PUCCH associated with the first TRP, and the second TRP is different from the first TRP.

[0206] Optionally, the first instruction information further includes a first TRP, and the processing module 1401 further determines that a recovery beam of a PUCCH associated with a second TRP is a first beam corresponding to the first beam identifier, and the second TRP is different from the first TRP.

[0207] Optionally, when the second TRP is in a beam failure state, a PUCCH associated with the second TRP is used to transmit a scheduling request for beam failure recovery.

[0208] Optionally, the processing module 1401 further determines that the recovery beam of the PUCCH is a beam corresponding to a designated control resource set.

[0209] Optionally, the processing module 1401 further determines that the designated control resource set is a control resource set with a smallest corresponding control resource set number in a recent time unit that needs to monitor a search space set, or determines the recovery beam of the PUCCH, but is a control resource set with a smallest corresponding control resource set number among the control resource sets belonging to a first control resource set pool in a recent time unit that needs to monitor a search space set, where the first control resource set pool index is the control resource set of the first control resource set pool index of the PUCCH. H Associate.

[0210] Optionally, the processing module 1401 further determines a first control resource set pool index associated with the PUCCH based on association relationship setting information between the PUCCH and a control resource set pool index, or determines a first control resource set pool index associated with the PUCCH based on association relationship setting information between the PUCCH and a reference signal set index for beam failure detection.

[0211] Optionally, the processing module 1401 determines that the beam corresponding to the specified control resource set is a beam corresponding to a physical random access channel (PRACH) used by the device.

[0212] Optionally, the above apparatus further includes a transceiver module for transmitting second instruction information, the second instruction information including a second beam identifier.

[0213] The processing module 1401 determines that the beam corresponding to the specified control resource set is a second beam corresponding to the second beam identifier.

[0214] Optionally, the second indication information includes at least one of a cell identifier in a beam failure state, a TRP identifier in a beam failure state, a second beam identifier, and a TRP identifier and / or a cell identifier associated with the second beam identifier.

[0215] Optionally, the TRP identifier includes at least one of a TRP identification number, a control resource set pool index identifier, and a beam failure detection reference signal set identifier.

[0216] Optionally, the PUCCH includes at least one of a PUCCH for transmitting a scheduling request, a PUCCH for transmitting a beam failure recovery scheduling request, and a PUCCH for transmitting a non-scheduling request.

[0217] The functions and specific implementation principles of each of the above modules in the embodiments of the present disclosure may refer to the embodiments of the above methods, but the description is omitted here.

[0218] When the communication device provided by the present disclosure detects that the first TRP is in a beam failure state, the communication device can determine a recovery beam for PUCCH, and then perform communication transmission using the determined recovery beam for PUCCH, thereby minimizing the impact on communication transmission and improving the quality and efficiency of communication transmission.

[0219] 15, which is a schematic diagram of another communication device 150 provided by an embodiment of the present disclosure. The communication device 150 may be a terminal device, or may be a chip, a chip system, or a processor, etc., for the terminal device to realize the above method. This device can be used to realize the method described in the above method embodiment. Specifically, please refer to the description in the above method embodiment.

[0220] The communication device 150 may include one or more processors 1501. The processor 1501 may be a general-purpose processor or a dedicated processor, etc. For example, it may be a baseband processor or a central processor. The baseband processor can be used to process communication protocols and communication data, and the central processor can be used to control the communication device (such as a base station, a baseband chip, a terminal device, a terminal device chip, a DU or CU), execute a computer program, and process data of the computer program.

[0221] Optionally, the communication device 150 may also include one or more memories 1502 on which computer programs 1504 may be stored, and the processor 1501 may execute the computer programs 1504 to cause the communication device 150 to perform the methods described in the method embodiments above. Optionally, data may also be stored in the memory 1502. The communication device 150 and the memory 1502 may be separate or integrated.

[0222] Optionally, the communication device 150 may also include a transceiver 1505 and an antenna 1506. The transceiver 1505 may be referred to as a transceiver unit, a transceiver, or a transceiver circuit, etc., to realize a transmitting and receiving function. The transceiver 1505 may include a receiver and a transmitter, which may be referred to as a receiver or a receiving circuit, etc., to realize a receiving function. The transmitter may be referred to as a transmitter, a transmitting circuit, etc., and is used to realize a transmitting function.

[0223] Optionally, the communication device 150 may include one or more interface circuits 1507 for receiving and transferring code instructions to the processor 1501. The processor 1501 executes the code instructions to cause the communication device 150 to perform the methods described in the method embodiments above.

[0224] The communication device 150 is a terminal device, and the processor 1501 is used to execute step 21 of Fig. 2, step 31 of Fig. 3, step 32 of Fig. 3, step 41 of Fig. 4, step 42 of Fig. 4, step 52 of Fig. 5, step 62 of Fig. 6, step 72 of Fig. 7, step 82 of Fig. 8, step 91 of Fig. 9, step 101 of Fig. 10, step 111 of Fig. 11, step 112 of Fig. 11, step 121 of Fig. 12, or step 132 of Fig. 13. The transceiver 1505 is used to execute step 51 of Fig. 5, step 61 of Fig. 6, step 71 of Fig. 7, step 81 of Fig. 8, or step 131 of Fig. 13.

[0225] In one embodiment, the processor 1501 may include a transceiver for implementing the receiving and transmitting functions. For example, the transceiver may be a transceiver circuit, an interface, or an interface circuit. The transceiver circuit, interface, or interface circuit for implementing the transmitting and receiving functions may be separate or integrated. The transceiver circuit, interface, or interface circuit may be used to read and write code / data, or the transceiver circuit, interface, or interface circuit may be used to transmit or convey signals.

[0226] In one embodiment, the processor 1501 may store a computer program 1503 for causing the communication device 150 to execute the method described in the above method embodiments, the computer program 1503 being executed on the processor 1501. The computer program 1503 may be hardened within the processor 1501, in which case the processor 1501 is implemented by hardware.

[0227] In one embodiment, the communication device 150 may include circuitry to implement the transmitting or receiving or communicating functions of the method embodiments described above. The processor and transceiver described in this disclosure may be implemented in an integrated circuit (IC), analog IC, radio frequency integrated circuit (RFIC), hybrid signal IC, application specific integrated circuit (ASIC), printed circuit board (PCB), electronic device. The processor and transceiver may also be fabricated using various IC process technologies such as complementary metal oxide semiconductor (CMOS), n-type metal oxide semiconductor (nMOS), p-type metal oxide semiconductor (PMOS), bipolar junction transistor (BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.

[0228] The communication device described in the above embodiment may be a terminal device, but the scope of the communication device described in this disclosure is not limited to this, and the configuration of the communication device is not limited to that shown in FIG. 15. The communication device may be an independent device or a part of a larger device. For example, the communication device may be: (1) An independent integrated circuit IC or chip, or a chip system or subsystem; (2) a set having one or more ICs, optionally including storage means for storing data, computer programs, (3) ASICs such as modems (4) A module that can be incorporated into other devices; (5) Receivers, terminal devices, smart terminal devices, mobile phones, wireless devices, handsets, mobile units, in-vehicle devices, network devices, cloud devices, artificial intelligence equipment, etc. (6) Others are also acceptable.

[0229] When the communication device is a chip or a system of chips, reference can be made to the schematic configuration diagram of the chip shown in Fig. 16. The chip shown in Fig. 16 includes a processor 1601 and an interface 1602.

[0230] Here, the number of processors 1601 may be one or more, and the number of interfaces 1602 may be more than one.

[0231] When the chip is used to realize the functions of the terminal device in an embodiment of the present disclosure: the interface 1602 is used to perform step 51 of FIG. 5, step 61 of FIG. 6, step 71 of FIG. 7, step 81 of FIG. 8, or step 131 of FIG. 13.

[0232] Optionally, the chip further includes a memory 1603, which is used to store necessary computer programs and data.

[0233] Those skilled in the art will also understand that various illustrative logical blocks and steps described in the embodiments of the present disclosure can be realized by electronic hardware, computer software, or a combination of both. Whether such functions are realized by hardware or software depends on the specific application and the design requirements of the entire system. Those skilled in the art can realize the described functions using various methods for each specific application, but such realization should not be understood as going beyond the scope of protection of the embodiments of the present disclosure.

[0234] An embodiment of the present disclosure further provides a physical uplink control channel beam recovery system, which comprises a communication device as a terminal device in the embodiment of Figure 14 described above, or a communication device as a terminal device in the embodiment of Figure 15 described above.

[0235] The present disclosure also provides a computer-readable storage medium having instructions stored thereon which, when executed by a computer, implement the functionality of any of the method embodiments described above.

[0236] The present disclosure further provides a computer program product, which, when executed by a computer, implements the functionality of any of the above method embodiments.

[0237] In the above-mentioned embodiments, the present invention may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented using software, the present invention 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 programs. When the computer programs are loaded and executed on a computer, the flows or functions described according to the embodiments of the present disclosure 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 program may be stored in a computer-readable storage medium, or may be transmitted from one computer-readable storage medium to another, for example, a computer program may be transmitted from one website, computer, server, or data center to another website site, computer, server, or data center via wire (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)), or wireless (e.g., infrared, radio, microwave, etc.), such as infrared, radio, microwave, etc. The computer-readable storage medium may be any available medium accessible by a computer, or may include a data storage device, such as a server, data center, in which one or more available media are integrated. The usable media may be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., high density digital video discs (DVDs)), or semiconductor media (e.g., solid state hard disks (SSDs)).

[0238] Those skilled in the art will understand that the various numerals such as 1st, 2nd, etc. in the present disclosure are divisions for the convenience of explanation and are not used to limit the scope of the embodiments of the present disclosure, but rather to indicate priority.

[0239] At least one of the present disclosure can be further described as one or more, and more is two, three, four or more, and the present disclosure is not limited. In the embodiment of the present disclosure, for one technical feature, "first", "second", "third", "A", "B", "C", and "D" are used to distinguish that there is no order of priority or magnitude between the technical features described in "first", "second", "third", "A", "B", "C", and "D".

[0240] The correspondence shown in each table in the present disclosure may be configured or may be predefined. The information in each table is merely an example and may be configured as other values, and the present disclosure is not limited thereto. In the correspondence between the configuration information and each parameter, it is not necessary to configure all the correspondences shown in each table. For example, in the table of the present disclosure, the correspondences shown in some rows may not be configured. In addition, appropriate deformation adjustments, such as splitting and merging, can be performed based on the above-mentioned tables. The names of the parameters shown in the titles of each table above can also adopt other names that the communication device can understand, and the method of taking and displaying the values ​​of the parameters can also adopt other values ​​and display methods that the communication device can understand. Each of the above tables can also adopt other data structures when implemented, such as arrays, queues, containers, stacks, linear tables, pointers, link tables, trees, diagrams, structures, classes, heaps, hash lists, or hash tables.

[0241] Predefined in this disclosure may be understood as defined, predefined, stored, pre-stored, pre-negotiated, pre-configured, cured, or pre-baked.

[0242] Those skilled in the art can recognize that each example unit and algorithm step described in connection with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. These functions are performed in hardware or software depending on the specific application and design constraints of the technology. A professional engineer can use different methods for implementing the described functions for each specific application, but this implementation is not considered to be beyond the scope of the present disclosure.

[0243] For the convenience of explanation, the specific operation procedures of the above-mentioned system, device, and device may be referred to the corresponding procedures in the embodiments of the above-mentioned method, and it is obvious to those skilled in the art that the explanation will be omitted here.

[0244] The above is merely a specific embodiment of the present disclosure, but the scope of protection of the present disclosure is not limited thereto, and within the technical scope of the present disclosure, modifications or replacements can be easily considered and should be included within the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure shall be equivalent to the scope of the claims.

Claims

1. 1. A method for physical uplink control channel beam recovery, comprising: The method is performed by a terminal device, detecting, by the terminal device, that a first transmission / reception point (TRP) is in a beam fail state; determining a recovery beam for a physical uplink control channel (PUCCH); The step of determining a recovery beam for a physical uplink control channel (PUCCH) comprises: transmitting a first indication, the first indication including a first beam identifier; determining that a recovery beam for the PUCCH is a first beam corresponding to the first beam identifier; The first indication information further includes a first TRP, and the step of determining that the recovery beam of the PUCCH is a first beam corresponding to the first beam identifier includes: determining that a recovery beam of a PUCCH associated with a second TRP is a first beam corresponding to the first beam identifier, the second TRP being different from the first TRP; 13. A method for physical uplink control channel beam recovery comprising:

2. The step of determining a recovery beam for a physical uplink control channel (PUCCH) comprises: determining that a recovery beam of the PUCCH is a beam corresponding to a Physical Random Access Channel (PRACH); 2. The method of claim 1 for physical uplink control channel beam recovery.

3. Further comprising: determining, based on a mapping relationship between a PRACH resource and a TRP, that the TRP corresponding to the PRACH resource used by the terminal device is a first TRP; 3. The method of claim 2, wherein the beam recovery is performed using a physical uplink control channel.

4. The step of transmitting the first instruction information includes: transmitting the first indication information based on a physical uplink shared channel (PUSCH) medium access control (MAC) control unit (CE); 2. The method of claim 1 for physical uplink control channel beam recovery.

5. The first indication information further includes a first TRP, and the step of determining that the recovery beam of the PUCCH is a first beam corresponding to the first beam identifier includes: determining that a recovery beam for a PUCCH associated with the first TRP is a first beam corresponding to the first beam identifier; 2. The method of claim 1 for physical uplink control channel beam recovery.

6. If a second TRP is in a beam failure state, send a beam failure recovery scheduling request using a PUCCH associated with the first TRP, and the second TRP is different from the first TRP; 6. The method of claim 5, wherein the beam recovery is performed using a physical uplink control channel.

7. If the second TRP is in a beam failure state, transmitting a beam failure recovery scheduling request using a PUCCH associated with the second TRP; 2. The method of claim 1 for physical uplink control channel beam recovery.

8. The step of determining a recovery beam for the PUCCH includes: determining that a recovery beam for the PUCCH is a beam corresponding to a designated control resource set; 2. The method of claim 1 for physical uplink control channel beam recovery.

9. determining that the specified controlled resource set is the controlled resource set with the smallest corresponding controlled resource set number in a recent time unit that needs to monitor a search space set; Or, The method further includes the steps of: determining that the designated control resource set is a control resource set having a smallest corresponding control resource set number among control resource sets belonging to a first control resource set pool in a recent time unit that needs to monitor a search space set, and associating a first control resource set pool index with the PUCCH; The method of claim 8 for physical uplink control channel beam recovery.

10. Determining a first control resource set pool index associated with the PUCCH based on association relationship setting information between the PUCCH and a control resource set pool index; or Further comprising: determining a first control resource set pool index associated with the PUCCH based on association relationship setting information between the PUCCH and a reference signal set index for beam failure detection; The method of claim 9 for physical uplink control channel beam recovery.

11. The method further includes determining that a beam corresponding to the specified control resource set is a beam corresponding to a physical random access channel (PRACH) used by the terminal device. The method of claim 8 for physical uplink control channel beam recovery.

12. transmitting a second instruction, the second instruction including a second beam identifier; and determining that the beam corresponding to the designated control resource set is a second beam corresponding to the second beam identifier. The method of claim 8 for physical uplink control channel beam recovery.

13. The second instruction information is A cell identifier that is in a beam fail state; TRP identifier in beam fail state, A second beam identifier, and At least one of a TRP identifier and / or a cell identifier associated with the second beam identifier; 13. The method of claim 12 for physical uplink control channel beam recovery.

14. The TRP identifier is TRP identification number, a controlled resource set pool index identifier, and at least one of a beam failure detection reference signal set identifier; 14. The method of claim 13 for physical uplink control channel beam recovery.

15. The PUCCH is A PUCCH for transmitting scheduling requests; A PUCCH for transmitting a beam failure recovery scheduling request; and at least one of the PUCCHs for transmitting non-scheduling requests; 2. The method of claim 1 for physical uplink control channel beam recovery.

16. A communication device mounted on a terminal device, comprising: a processing module for detecting that a first transmission / reception point (TRP) is in a beam failure state and determining a recovery beam for a physical uplink control channel (PUCCH); a transceiver module for transmitting first instruction information, the first instruction information including a first beam identifier; Including, The processing module further determines that a recovery beam for the PUCCH is a first beam corresponding to the first beam identifier; The first indication information further includes a first TRP, and the processing module further comprises: Determine that a recovery beam of a PUCCH associated with a second TRP is a first beam corresponding to the first beam identifier, and the second TRP is different from the first TRP; A communication device comprising:

17. The processing module includes: determining that the recovery beam of the PUCCH is a beam corresponding to a Physical Random Access Channel (PRACH); 17. The communication device according to claim 16,

18. The processing module further comprises: Based on a mapping relationship between the PRACH resource and the TRP, determine that the TRP corresponding to the PRACH resource used by the device is a first TRP; 20. The communication device according to claim 17,

19. The transceiver module includes: Sending the first indication information based on a physical uplink shared channel (PUSCH) medium access control (MAC) control unit (CE); 17. The communication device according to claim 16,

20. The first indication information further includes a first TRP, and the processing module: determining that a recovery beam for a PUCCH associated with the first TRP is a first beam corresponding to the first beam identifier; 17. The communication device according to claim 16,

21. If a second TRP is in a beam failure state, send a beam failure recovery scheduling request using a PUCCH associated with the first TRP, and the second TRP is different from the first TRP; 21. The communication device according to claim 20.

22. If the second TRP is in a beam failure state, transmitting a beam failure recovery scheduling request using a PUCCH associated with the second TRP; 17. The communication device according to claim 16,

23. The processing module includes: determining that the recovery beam for the PUCCH is a beam corresponding to a designated control resource set; 17. The communication device according to claim 16,

24. The processing module further comprises: Determining that the specified controlled resource set is the controlled resource set having the smallest corresponding controlled resource set number in a recent time unit that needs to monitor a search space set; Or, Determine that the designated control resource set is the control resource set with the smallest corresponding control resource set number among the control resource sets belonging to a first control resource set pool in the most recent time unit that needs to monitor a search space set, and associate the first control resource set pool index with the PUCCH; 24. The communication device according to claim 23.

25. The processing module further comprises: Determine a first control resource set pool index associated with the PUCCH according to association relationship setting information between the PUCCH and a control resource set pool index; or determining a first control resource set pool index associated with the PUCCH based on association relationship setting information between the PUCCH and a reference signal set index for beam failure detection; 25. The communication device according to claim 24.

26. The processing module further comprises: determining that a beam corresponding to the specified control resource set is a beam corresponding to a physical random access channel (PRACH) used by the device; 24. The communication device according to claim 23.

27. The apparatus comprises: a transceiver module for transmitting second instruction information, the second instruction information including a second beam identifier; the processing module determines that the beam corresponding to the designated control resource set is a second beam corresponding to the second beam identifier.

24. The communication device according to claim 23.

28. The second instruction information is A cell identifier that is in a beam fail state; TRP identifier in beam fail state, A second beam identifier, and At least one of a TRP identifier and / or a cell identifier associated with the second beam identifier; 28. The communication device according to claim 27.

29. The TRP identifier includes at least one of a TRP identification number, a control resource set pool index identifier, and a beam failure detection reference signal set identifier; 29. The communication device of claim 28.

30. The PUCCH is A PUCCH for transmitting scheduling requests; A PUCCH for transmitting a beam failure recovery scheduling request; and at least one of the PUCCHs for transmitting non-scheduling requests. A communication device according to any one of claims 16 to 29.

31. 1. A communication device, comprising: The apparatus includes a processor and a memory, the memory storing a computer program, and the processor executes the computer program stored in the memory to cause the apparatus to perform the method according to any one of claims 1 to 15. A communication device comprising:

32. 1. A communication device, comprising: a processor and an interface circuit; the interface circuitry is used to receive and transmit code instructions to the processor; The processor executes the code instructions to perform the method according to any one of claims 1 to 15. A communication device comprising:

33. 1. A computer-readable storage medium, comprising: Instructions are stored which, when executed, implement a method according to any one of claims 1 to 15. A computer-readable storage medium comprising:

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