Physical uplink control channel transmission method and apparatus, computer-readable storage medium

Abstract

A Physical Uplink Control Channel (PUCCH) transmission method and apparatus, and a computer-readable storage medium, are disclosed. The method includes: in response to successful beam failure recovery based on a random access procedure, determining a path loss reference signal (PLRS) for the Physical Uplink Control Channel (PUCCH) resource based on messages transmitted during the random access procedure, wherein the random access procedure includes multiple Physical Random Access Channel (PRACH) transmissions with different beams; and transmitting the PUCCH using the PLRS. When beam failure recovery is performed using multiple PRACH transmissions with different beams, the present invention can correctly perform subsequent PUCCH transmissions to ensure normal subsequent communication.

Description

Technical Field

[0001] This invention relates to the field of communication technology, and more specifically to a physical uplink control channel transmission method and apparatus, and a computer-readable storage medium. Background Technology

[0002] For coverage enhancement purposes, future enhancements may be made to the transmission of Message 1 (Msg1) in the Random Access Channel (RACH) procedure, i.e., the Physical Random Access Channel (PRACH). Specifically, this enhancement will be achieved by sending multiple PRACH messages. These multiple PRACH transmissions can be categorized based on the beam direction of the transmissions: multiple PRACH transmissions using the same beam and multiple PRACH transmissions using different beams.

[0003] On the other hand, the Beam Failure Recovery (BFR) procedure also includes a RACH-based process. If the BFR procedure employs the aforementioned repeated Msg1 transmission method, especially multiple Msg1 transmissions across different beams, it will impact the BFR procedure and subsequent related processes. Current technology does not provide an effective solution to address these impacts. Summary of the Invention

[0004] The technical problem solved by this invention is how to ensure the correct operation of subsequent communication when beam failure recovery is performed by multiple PRACH transmissions using different beams.

[0005] To address the aforementioned technical problems, embodiments of the present invention provide a physical uplink control channel (PUCCH) transmission method, comprising: responding to a successful beam failure recovery based on a random access procedure; determining a path loss reference signal (PLRS) for the physical uplink control channel (PUCCH) resource based on messages transmitted during the random access procedure, wherein the random access procedure includes multiple physical random access channel (PRACH) transmissions for different beams; and using the PLRS to transmit the PUCCH.

[0006] Optionally, the step of determining the PLRS based on the messages transmitted during the random access procedure is performed after a preset time period has elapsed since receiving the beam failure recovery success indication, and before receiving the PLRS for network update or configuration of PUCCH resources.

[0007] Optionally, the configured PLRS is carried by a signaling bearer used to activate the PUCCH spatial relation information configuration.

[0008] Optionally, the preset time period includes 28 orthogonal frequency division multiplexing (OFDM) symbols.

[0009] Optionally, the received beam failure recovery success indication includes: receiving a Physical Downlink Control Channel (PDCCH) with a Cell Radio Network Temporary Identifier (C-RNTI) or a Modulation and Coding Policy Radio Network Temporary Identifier (MCS-RNTI) scrambled with a Cyclic Redundancy Check (CRC) within a search space dedicated to beam failure recovery.

[0010] Optionally, determining the PLRS based on messages transmitted during the random access procedure includes: determining a preferred PRACH based on the random access opportunity (RO) resources occupied by each of the multiple PRACH transmissions; and determining the reference signal (RS) corresponding to the preferred PRACH as the PLRS.

[0011] Optionally, determining the preferred PRACH based on the random access timing (RO) resources occupied by each of the multiple PRACH transmissions includes: determining the PRACH corresponding to the RO resource that is the earliest or latest in the time domain among the RO resources occupied by each of the multiple PRACH transmissions as the preferred PRACH.

[0012] Optionally, determining the preferred PRACH based on the random access timing (RO) resources occupied by each of the multiple PRACH transmissions further includes: if there are multiple RO resources that are the earliest or latest in the time domain, then the PRACH corresponding to the RO resource with the highest or lowest frequency domain is determined as the preferred PRACH.

[0013] Optionally, determining the PLRS based on messages transmitted during the random access procedure includes: determining the PRACH with the best channel quality among the multiple PRACH transmissions as the preferred PRACH; and determining the RS corresponding to the preferred PRACH as the PLRS.

[0014] Optionally, determining the PLRS based on messages transmitted during the random access procedure includes: determining a preferred PRACH based on the index of each PRACH in the multiple PRACH transmissions; and determining the RS corresponding to the preferred PRACH as the PLRS.

[0015] Optionally, determining the preferred PRACH based on the index of each PRACH in the multiple PRACH transmissions includes: determining the PRACH with the largest or smallest index value as the preferred PRACH.

[0016] Optionally, determining the PLRS based on messages transmitted during the random access procedure includes: obtaining indication information during receiving a second message of the random access procedure; and determining the PLRS based on the indication information.

[0017] Optionally, during the receipt of the second message of the random access procedure, obtaining the indication information includes: obtaining the indication information from the physical downlink shared channel (PDSCH) used to carry the second message; or, obtaining the indication information from the physical downlink control channel (PDCCH) that schedules the PDSCH.

[0018] Optionally, determining the PLRS based on messages transmitted during the random access procedure includes: determining the reference signal corresponding to the received beam as the PLRS, wherein the received beam is used to receive the second message of the random access procedure.

[0019] Optionally, determining the PLRS based on messages transmitted during the random access procedure includes: determining the PLRS used to send the third message of the random access procedure as the PLRS.

[0020] Optionally, the multiple PRACH transmissions of different beams are used to send the first message.

[0021] To address the aforementioned technical problems, embodiments of the present invention also provide a Physical Uplink Control Channel (PUCCH) transmission apparatus, comprising: a determination module, responsive to a successful beam failure recovery based on a random access procedure, configured to determine a path loss reference signal (PLRS) for the Physical Uplink Control Channel (PUCCH) resource based on messages transmitted during the random access procedure, wherein the random access procedure includes multiple Physical Random Access Channel (PRACH) transmissions with different beams; and a transmission module, configured to transmit the PUCCH using the PLRS.

[0022] To address the aforementioned technical problems, embodiments of the present invention also provide a computer-readable storage medium, which is a non-volatile or non-transient storage medium, and stores a computer program thereon. When the computer program is run by a processor, it executes the steps of the method described above.

[0023] To address the aforementioned technical problems, this invention also provides a physical uplink control channel transmission device, including a memory and a processor. The memory stores a computer program that can run on the processor, and the processor executes the steps of the above-described method when running the computer program.

[0024] Compared with the prior art, the technical solution of the embodiments of the present invention has the following beneficial effects:

[0025] This invention provides a method for transmitting a Physical Uplink Control Channel (PUCCH), comprising: in response to a successful beam failure recovery based on a random access procedure, determining a Path Loss Reference Signal (PLRS) for the Physical Uplink Control Channel (PUCCH) resource based on messages transmitted during the random access procedure, wherein the random access procedure includes multiple Physical Random Access Channel (PRACH) transmissions for different beams; and using the PLRS to transmit the PUCCH.

[0026] When beam failure recovery is performed using multiple PRACH transmissions with different beams, the solution of this invention can correctly perform subsequent PUCCH transmissions to ensure normal subsequent communication. Specifically, compared with the prior art that directly uses the reference signal corresponding to the new beam used in the beam failure recovery process as the PLRS, since multiple PRACH transmissions with different beams are performed during the beam failure recovery process in this implementation scenario, this implementation provides an improved PLRS determination method. The PLRS is determined based on the messages transmitted during the random access procedure rather than the beam itself, thereby enabling the terminal in the application scenario of beam failure recovery using multiple PRACH transmissions with different beams to correctly send PUCCH after successful beam failure recovery, ensuring effective communication with the network. Attached Figure Description

[0027] Figure 1 This is a flowchart of a physical uplink control channel transmission method according to an embodiment of the present invention;

[0028] Figure 2 This is a signaling interaction diagram of a typical application scenario of an embodiment of the present invention;

[0029] Figure 3 This is a schematic diagram of the structure of a physical uplink control channel transmission device according to an embodiment of the present invention. Detailed Implementation

[0030] As mentioned in the background section, when Msg1 is repeatedly transmitted in the BFR process, especially when multiple Msg1 transmissions with different beams are used, it will also affect the BFR process and subsequent related processes.

[0031] For example, according to the relevant provisions of existing protocols, within the control-resourceset (CORESET) used for BFR or within the search space used for BFR, after the terminal (also known as the user equipment, UE) successfully receives the Cell Radio Network Temporary Identity (C-RNTI) or Modulation and Coding Scheme Radio Network Temporary Identity (MCS-RNTI) scrambled cyclic redundancy check (CRC) of the Physical Downlink Control Channel (PDCCH) followed by 28 symbols (such as 28 Orthogonal Frequency Division Multiplexing (OFDM) symbols), until the UE receives the signaling used to activate the spatial relation information configuration of the Physical Uplink Control Channel (PUCCH), the UE sends the path loss reference signal used by the PUCCH. The PLRS (Plus Reference Signal) is the reference signal corresponding to the new beam used in the BFR (Band Failure Recovery) procedure. Specifically, if the UE receives a PDCCH with C-RNTI or MCS-RNTI scrambled CRC within the search space dedicated to beam failure recovery, it indicates successful beam failure recovery.

[0032] However, if the BFR procedure is changed to use Msg1 for repeated transmission of different beams, then how to select the PLRS used by PUCCH becomes an urgent problem to be solved since multiple beams are used in the BRF procedure.

[0033] To address the aforementioned technical problems, embodiments of the present invention provide a physical uplink control channel transmission method, comprising: responding to a successful beam failure recovery based on a random access procedure; determining a path loss reference signal (PLRS) based on messages transmitted during the random access procedure, wherein the random access procedure includes multiple physical random access channel (PRACH) transmissions for different beams; and using the PLRS to transmit a physical uplink control channel (PUCCH).

[0034] When beam failure recovery is performed using multiple PRACH transmissions with different beams, the solution of this invention can correctly perform subsequent PUCCH transmissions to ensure normal subsequent communication. Specifically, since multiple PRACH transmissions with different beams are performed during the beam failure recovery process in this implementation scenario, this implementation provides an improved PLRS determination method. PLRS is determined based on the messages transmitted during the random access procedure rather than the beams themselves, thus enabling the terminal in this application scenario of beam failure recovery using multiple PRACH transmissions with different beams to correctly send PUCCH after successful beam failure recovery, ensuring effective communication with the network.

[0035] To make the above-mentioned objectives, features and beneficial effects of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0036] In a specific implementation, for scenarios where coverage is enhanced by sending multiple PRACH messages, both multiple PRACH transmissions with the same beam and multiple PRACH transmissions with different beams are suitable for BFR (Browser Freeform). Among these, multiple PRACH transmissions with the same beam require less modification to the protocol and are therefore more feasible.

[0037] Correspondingly, future regulations could stipulate that BFR can only use the legacy method, meaning that Msg1 is either not repetitive or can only be repetitively transmitted using the same beam. The specific method used can be determined implicitly through higher-layer signaling configuration or RACH resources. For example, if the base station does not have dedicated resources for Msg1 repetition, the UE will default to using the legacy method; otherwise, it can be assumed that the UE can use the Msg1 repetition method.

[0038] If future protocols stipulate that UEs can use different beams of Msg1 repeated transmissions for BFR, then at least during the PUCCH transmission phase after successful BFR, corresponding adjustments will be needed to ensure that the UE can correctly perform PUCCH transmission. The following section will elaborate on this scenario and the corresponding implementation scheme.

[0039] Figure 1 This is a flowchart of a physical uplink control channel transmission method according to an embodiment of the present invention.

[0040] This implementation scheme can be applied to the PUCCH transmission scenario after a successful BFR, and the BFR is performed by repeated transmission of Msg1 using different beams.

[0041] In specific implementation, the physical uplink control channel transmission method provided in steps S101 to S102 below can be executed by a chip with PUCCH transmission function in the user equipment (also known as UE), or by a baseband chip in the user equipment.

[0042] Specifically, refer to Figure 1 The physical uplink control channel transmission method described in this embodiment may include the following steps:

[0043] Step S101: In response to the successful recovery of beam failure based on random access procedure, determine the path loss reference signal PLRS of PUCCH resource according to the messages transmitted during the random access procedure, wherein the random access procedure includes multiple physical random access channel (PRACH) transmissions for different beams.

[0044] Step S102: Use the PLRS to transmit PUCCH.

[0045] Furthermore, the multiple PRACH transmissions on different beams described in step S101 can be used to send the first message (i.e., the aforementioned message Msg1). Multiple PRACH transmissions on different beams can be understood as multiple PRACH transmissions, with different PRACHs occupying different Random Access Occasion (RO) resources.

[0046] In one specific implementation, a successful beam failure recovery (BFR) can be determined upon receiving a beam failure recovery success indication. After a preset time period elapsed since receiving the beam failure recovery success indication, and before receiving a network update or PLRS for configuring PUCCH resources, the UE needs to determine the PLRS used for transmitting PUCCH resources. The beam failure recovery success indication can refer to the user terminal receiving a PDCCH with C-RNTI or MCS-RNTI scrambled CRC within a search space dedicated to beam failure recovery.

[0047] For example, after successfully receiving 28 symbols of a PDCCH scrambled with C-RNTI or MCS-RNTI, the UE can execute step S101 to determine the PLRS until it receives signaling for activating or configuring PUCCH spatial relation information. Successfully receiving a PDCCH scrambled with C-RNTI or MCS-RNTI confirms successful BFR, and the signaling for activating or configuring PUCCH spatial relation information can carry the network-configured PLRS. In one specific implementation, step S101 may include: determining a preferred PRACH based on the RO resources occupied by each of the multiple PRACH transmissions; and determining the reference signal RS corresponding to the preferred PRACH as the PLRS.

[0048] Specifically, the RO resources occupied by each PRACH transmission may have different order in the time domain, such as being sorted based on the index number of the RO resources. If the index numbers are the same in the time domain, the positions of different RO resources in the frequency domain may also be different.

[0049] For example, the PRACH corresponding to the earliest or latest RO resource in the time domain among the multiple PRACH transmissions can be determined as the preferred PRACH. Alternatively, the index numbers of all RO resources can be sorted, and the PRACH corresponding to the earliest or latest RO resource in the sorted sequence can be determined as the preferred PRACH. If there are multiple earliest or latest RO resources in the time domain, the PRACH corresponding to the RO resource with the highest or lowest frequency domain can be determined as the preferred PRACH.

[0050] For example, among the RO resources occupied by each of the multiple PRACH transmissions, the RO resource with the smallest RO resource index number can be selected as the preferred PRACH, or the RO resource with the largest RO resource index number can be selected as the preferred PRACH.

[0051] For example, the earliest PRACH transmitted in time can be selected as the preferred PRACH, or the latest PRACH transmitted in time can be selected as the preferred PRACH.

[0052] For example, among the reference signals corresponding to the multiple PRACH transmissions, the reference signal with the smallest reference signal index number can be selected as the PLRS of the PUCCH resource, or the reference signal with the largest reference signal index number can be selected as the PLRS of the PUCCH resource.

[0053] For example, one RO resource can be randomly selected from the RO resources occupied by each of the multiple PRACH transmissions, and the PRACH corresponding to that RO resource can be determined as the preferred PRACH.

[0054] Furthermore, the network can pre-configure the RS corresponding to each PRACH and instruct the UE.

[0055] In one specific implementation, step S101 may include the steps of: determining the PRACH with the best channel quality among the multiple PRACH transmissions as the preferred PRACH; and determining the RS corresponding to the preferred PRACH as the PLRS.

[0056] For example, the channel quality of PRACH can be characterized based on its corresponding Reference Signal Received Power (RSRP). For instance, the RSRP of the reference signal corresponding to the PRACH can be measured during the random access procedure.

[0057] In one specific implementation, step S101 may include the steps of: determining a preferred PRACH based on the index of each PRACH in the multiple PRACH transmissions; and determining the RS of the preferred PRACH as the PLRS.

[0058] Specifically, the PRACH index can be pre-configured by network configuration or protocol.

[0059] For example, the PRACH with the largest or smallest index value can be determined as the preferred PRACH.

[0060] In one specific implementation, step S101 may include the steps of: obtaining indication information during the receipt of the second message (Msg2) of the random access procedure; and determining the PLRS based on the indication information.

[0061] Specifically, Msg2 (Random Access Response, or RAR) can be indicated to the UE by the network during the random access procedure.

[0062] Furthermore, Msg2 can be carried via the Physical Downlink Shared Channel (PDSCH). Correspondingly, the indication information can be obtained from the PDSCH used to carry the second message. For example, if the PDSCH can be used to send the Media Access Control-Control Element (MAC-CE) for RAR, then in this example, X bits can be added to the MAC-CE to indicate the PLRS corresponding to the PUCCH resource. Here, X can be any positive integer.

[0063] For example, the indication information can be obtained from the Physical Downlink Control Channel (PDCCH) that schedules the PDSCH. For instance, an additional indication field can be carried in the PDCCH used for scheduling the MAC-CE to indicate the PLRS corresponding to the PUCCH resource.

[0064] Furthermore, the indication information can directly indicate the PLRS. Alternatively, the indication information can indicate which beam of different beams transmits the PRACH, and the corresponding RS is used as the PLRS for the PUCCH resource.

[0065] In one specific implementation, step S101 may include the step of: determining the RS corresponding to the receiving beam as the PLRS, wherein the receiving beam is used to receive the second message of the random access procedure.

[0066] In one specific implementation, step S101 may include the step of: determining the PLRS used to send the third message (Msg3) of the random access procedure as the PLRS.

[0067] For example, the RS corresponding to the transmit beam that transmits Msg3 can be determined as PLRS.

[0068] Therefore, when using multiple PRACH transmissions with different beams to recover from beam failure, the solution of this invention can correctly perform subsequent PUCCH transmissions to ensure the normal operation of subsequent communication.

[0069] Specifically, since multiple PRACH transmissions are performed using different beams during the beam failure recovery process in this implementation scenario, this implementation provides an improved PLRS determination method. The PLRS is determined based on the messages transmitted during the random access procedure rather than the beam itself. This ensures that the terminal in this application scenario, which uses multiple PRACH transmissions using different beams for beam failure recovery, can correctly send PUCCH after successful beam failure recovery, thus ensuring effective communication with the network.

[0070] Figure 2 This is a signaling interaction diagram of a typical application scenario of an embodiment of the present invention.

[0071] In this scenario, combined Figure 2 UE21 can perform operation s201 to perform BFR procedure based on multiple PRACH transmissions of different beams.

[0072] Next, base station 22 performs operation s202 to send a PDCCH scrambled with C-RNTI or MSC-RNTI to UE21. Accordingly, UE21 successfully receives the PDCCH scrambled with C-RNTI or MSC-RNTI and confirms that BFR is successful.

[0073] After confirming successful BFR, if no signaling for activating PUCCH spatial relationship information configuration is received from base station 22 after 28 OFDM symbols, UE21 executes operation s203 based on the above. Figure 1 The PLRS can be determined independently in the proposed scheme.

[0074] Next, UE21 performs operation s204 to send PUCCH to base station 22 using the determined PLRS.

[0075] In a variation, if UE21 receives signaling from base station 22 via operation s208 to activate PUCCH spatial relation information configuration before / simultaneously / after operations s203 and 204, UE21 can execute operation s209 to transmit PUCCH using the PLRS configured in the signaling. In this case, UE21 will no longer transmit PUCCH using the PLRS determined by operation s203.

[0076] Figure 3 This is a schematic diagram of a physical uplink control channel transmission device according to an embodiment of the present invention. Those skilled in the art will understand that the physical uplink control channel transmission device 3 described in this embodiment can be used to implement the above-described... Figure 1 The method described in the embodiments is a technical solution. For example, the physical uplink control channel transmission device 3 can be integrated into... Figure 2 The UE21 shown is either connected to or coupled to UE21.

[0077] Specifically, refer to Figure 3 The physical uplink control channel transmission device 3 described in this embodiment may include: a determination module 31, which, in response to a successful beam failure recovery based on a random access procedure, is used to determine the path loss reference signal (PLRS) of the PUCCH resource based on messages transmitted during the random access procedure, wherein the random access procedure includes multiple physical random access channel (PRACH) transmissions for different beams; and a transmission module 32, which is used to transmit the PUCCH using the PLRS.

[0078] For more information on the working principle and operation mode of the physical uplink control channel transmission device 3, please refer to the above. Figure 1 The relevant descriptions in the text will not be repeated here.

[0079] In specific implementations, the aforementioned physical uplink control channel transmission device 3 may correspond to a chip in the user equipment that has PUCCH transmission function, or to a chip that has data processing function, such as a system-on-a-chip (SOC), baseband chip, etc.; or to a chip module in the user equipment that includes a chip with PUCCH transmission function; or to a chip module that has a chip with data processing function, or to the user equipment.

[0080] In specific implementation, the modules / units included in the various devices and products described in the above embodiments can be software modules / units, hardware modules / units, or a combination of both.

[0081] For example, for various devices and products applied to or integrated into a chip, each module / unit can be implemented using hardware methods such as circuits, or at least some modules / units can be implemented using software programs that run on a processor integrated within the chip, while the remaining (if any) modules / units can be implemented using hardware methods such as circuits; for various devices and products applied to or integrated into a chip module, each module / unit can be implemented using hardware methods such as circuits, and different modules / units can be located in the same component (e.g., chip, circuit module, etc.) or different components of the chip module, or at least some modules / units can be implemented using hardware methods such as circuits. The components can be implemented using software programs that run on the processor integrated within the chip module. The remaining (if any) modules / units can be implemented using hardware methods such as circuits. For various devices and products applied to or integrated into the terminal, each of its components / units can be implemented using hardware methods such as circuits. Different modules / units can be located in the same component (e.g., chip, circuit module, etc.) or in different components within the terminal. Alternatively, at least some modules / units can be implemented using software programs that run on the processor integrated within the terminal, while the remaining (if any) modules / units can be implemented using hardware methods such as circuits.

[0082] This invention also provides a computer-readable storage medium, which is a non-volatile or non-transient storage medium, storing a computer program thereon. The computer program is executed by a processor. Figure 1 and Figure 2The illustrated embodiment provides steps for a physical uplink control channel transmission method. Preferably, the storage medium may include a computer-readable storage medium such as non-volatile or non-transitory memory. The storage medium may include ROM, RAM, magnetic disk, or optical disk, etc.

[0083] This invention also provides another physical uplink control channel transmission device, including a memory and a processor. The memory stores a computer program that can run on the processor. When the processor runs the computer program, it performs the above-described... Figure 1 and Figure 2 The illustrated embodiment provides steps for a physical uplink control channel transmission method. For example, the physical uplink control channel transmission device may be integrated into or coupled to the user equipment.

[0084] Those skilled in the art will understand that all or part of the steps in the various methods of the above embodiments can be performed by a program instructing related hardware. The program can be stored in a computer-readable storage medium, which may include ROM, RAM, disk, or optical disk, etc.

[0085] The technical solution of this invention is applicable to 5G (5-generation) communication systems, as well as 4G and 3G communication systems, and can also be applied to various communication systems that evolve in the future, such as 6G and 7G.

[0086] The base station (BS) in this application embodiment, also referred to as base station equipment, is a device deployed in a wireless access network to provide wireless communication functions. For example, in a 2G network, equipment providing base station functions includes a base transceiver station (BTS) and a base station controller (BSC); in a 3G network, equipment providing base station functions includes a Node B (NodeB) and a radio network controller (RNC); in a 4G network, equipment providing base station functions includes an evolved Node B (eNB); in wireless local area networks (WLANs), equipment providing base station functions is an access point (AP); in 5G New Radio (NR), equipment providing base station functions includes a continuing evolved Node B (gNB); and other equipment providing base station functions in future new communication systems, etc.

[0087] In this application, the term "terminal" can refer to various forms of user equipment (UE), access terminal, user unit, user station, mobile station, mobile station (MS), remote station, remote terminal, mobile device, user terminal, terminal equipment, wireless communication equipment, user agent, or user device. Terminal equipment can also be a cellular phone, cordless phone, Session Initiation Protocol (SIP) phone, Wireless Local Loop (WLL) station, Personal Digital Assistant (PDA), handheld device with wireless communication capabilities, computing device, or other processing device connected to a wireless modem, in-vehicle device, wearable device, terminal equipment in future 5G networks, or terminal equipment in future evolved Public Land Mobile Networks (PLMNs), etc. This application does not limit the scope of these examples.

[0088] It should be understood that the term "and / or" in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this article indicates that the preceding and following related objects have an "or" relationship.

[0089] In the embodiments of this application, "multiple" refers to two or more.

[0090] The descriptions of "first," "second," etc., appearing in the embodiments of this application are for illustrative purposes and to distinguish the objects being described. They have no order and do not indicate any special limitation on the number of devices in the embodiments of this application, nor do they constitute any limitation on the embodiments of this application.

[0091] It should be understood that in the various embodiments of this application, the order of the above-mentioned processes does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0092] In the several embodiments provided in this application, it should be understood that the disclosed methods, apparatuses, and systems can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between devices or units may be electrical, mechanical, or other forms.

[0093] While the present invention has been disclosed above, it is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the invention; therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

Claims

1. A method for transmitting a physical uplink control channel, characterized in that, include: In response to a successful beam failure recovery based on a random access procedure, the path loss reference signal (PLRS) for the Physical Uplink Control Channel (PUCCH) resource is determined based on the messages transmitted during the random access procedure rather than the beam, wherein the random access procedure includes multiple Physical Random Access Channel (PRACH) transmissions for different beams. Use the PLRS to transmit PUCCH; The step of determining the PLRS based on messages transmitted during the random access procedure includes: The preferred PRACH is determined based on the random access opportunity (RO) resources occupied by each of the multiple PRACH transmissions; the reference signal RS corresponding to the preferred PRACH is determined as the PLRS; or The preferred PRACH is determined based on the index of each PRACH in the multiple PRACH transmissions; the RS corresponding to the preferred PRACH is determined as the PLRS; or During the receipt of the second message of the random access procedure, obtain indication information; determine the PLRS based on the indication information; or The reference signal corresponding to the received beam is determined as the PLRS, wherein the received beam is used to receive the second message of the random access procedure; or The PLRS used to send the third message of the random access procedure is determined to be the PLRS.

2. The method according to claim 1, characterized in that, The step of determining the PLRS based on the messages transmitted during the random access procedure is performed after a preset time period has elapsed since receiving the beam failure recovery success indication and before receiving the PLRS for network update or configuration of PUCCH resources.

3. The method according to claim 2, characterized in that, The configured PLRS is carried by a signaling bearer used to activate the PUCCH spatial relationship information configuration.

4. The method according to claim 2, characterized in that, The preset time period includes 28 orthogonal frequency division multiplexing (OFDM) symbols.

5. The method according to claim 2, characterized in that, The received beam failure recovery success indication includes: receiving a Physical Downlink Control Channel (PDCCH) with a Cell Radio Network Temporary Identifier (C-RNTI) or Modulation and Coding Policy Radio Network Temporary Identifier (MCS-RNTI) scrambled with a Cyclic Redundancy Check (CRC) within a search space dedicated to beam failure recovery.

6. The method according to claim 1, characterized in that, The step of determining the preferred PRACH based on the random access timing (RO) resources occupied by each of the multiple PRACH transmissions includes: The PRACH corresponding to the RO resource that is first or last in the time domain among the multiple PRACH transmissions is determined as the preferred PRACH.

7. The method according to claim 6, characterized in that, The step of determining the preferred PRACH based on the random access timing (RO) resources occupied by each of the multiple PRACH transmissions further includes: If there are multiple RO resources that are the first or last in the time domain, then the PRACH corresponding to the RO resource with the highest or lowest frequency domain is determined as the preferred PRACH.

8. The method according to claim 1, characterized in that, The step of determining the preferred PRACH based on the index of each PRACH in the multiple PRACH transmissions includes: The PRACH with the largest or smallest index value is determined as the preferred PRACH.

9. The method according to claim 1, characterized in that, During the receipt of the second message of the random access procedure, obtaining the indication information includes: The indication information is obtained from the Physical Downlink Shared Channel (PDSCH) used to carry the second message; or, The indication information is obtained from the physical downlink control channel (PDCCH) that schedules the PDSCH.

10. The method according to any one of claims 1 to 9, characterized in that, The multiple PRACH transmissions of different beams are used to send the first message.

11. A physical uplink control channel transmission device, characterized in that, include: The determination module, in response to a successful beam failure recovery based on a random access procedure, is used to determine the path loss reference signal (PLRS) of the Physical Uplink Control Channel (PUCCH) resource based on messages transmitted during the random access procedure rather than the beam, wherein the random access procedure includes multiple Physical Random Access Channel (PRACH) transmissions with different beams. A transmission module for transmitting PUCCH using the PLRS; The determining module performs the following steps: The preferred PRACH is determined based on the random access opportunity (RO) resources occupied by each of the multiple PRACH transmissions; the reference signal RS corresponding to the preferred PRACH is determined as the PLRS; or The preferred PRACH is determined based on the index of each PRACH in the multiple PRACH transmissions; the RS corresponding to the preferred PRACH is determined as the PLRS; or During the receipt of the second message of the random access procedure, obtain indication information; determine the PLRS based on the indication information; or The reference signal corresponding to the received beam is determined as the PLRS, wherein the received beam is used to receive the second message of the random access procedure; or The PLRS used to send the third message of the random access procedure is determined to be the PLRS.

12. A computer-readable storage medium, said computer-readable storage medium being a non-volatile storage medium or a non-transient storage medium, having stored thereon a computer program, characterized in that, The computer program is executed by a processor to perform the steps of the method according to any one of claims 1 to 10.

13. A physical uplink control channel transmission apparatus, comprising a memory and a processor, wherein the memory stores a computer program executable on the processor, characterized in that, When the processor runs the computer program, it performs the steps of the method according to any one of claims 1 to 10.

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