CN116419420A

CN116419420A - Physical uplink control channel transmission method and device and computer readable storage medium

Info

Publication number: CN116419420A
Application number: CN202210009087.3A
Authority: CN
Inventors: 张萌
Original assignee: Spreadtrum Communications Shanghai Co Ltd
Current assignee: Spreadtrum Communications Shanghai Co Ltd
Priority date: 2022-01-05
Filing date: 2022-01-05
Publication date: 2023-07-11
Also published as: WO2023131216A1

Abstract

A physical uplink control channel transmission method and device, and a computer readable storage medium, the method includes: determining a path loss reference signal PLRS of a Physical Uplink Control Channel (PUCCH) resource according to a message transmitted during a random access procedure in response to successful beam failure recovery based on the random access procedure, wherein the random access procedure comprises multiple Physical Random Access Channel (PRACH) transmissions of different beams; and transmitting the PUCCH by using the PLRS. When the beam failure recovery is carried out by adopting the multiple PRACH transmissions of different beams, the subsequent PUCCH transmission can be correctly carried out by the scheme of the invention so as to ensure the normal operation of subsequent communication.

Description

Physical uplink control channel transmission method and device and computer readable storage medium

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a method and apparatus for transmitting a physical uplink control channel, and a computer readable storage medium.

Background

For coverage enhancement, it is possible to make some enhancements in the future for the transmission of message 1 (Msg 1), i.e. the physical random access channel (Physical Random Access Channel, abbreviated PRACH), in the random access channel (Random Access Channel, abbreviated RACH) procedure. Specifically, the PRACH may be enhanced by transmitting multiple times. The multiple PRACH transmissions may be classified into multiple PRACH transmissions of the same beam and multiple PRACH transmissions of different beams.

On the other hand, there is a RACH procedure based on the beam failure recovery (Beam Failure Recovery, abbreviated BFR) procedure. If the above-mentioned Msg1 retransmission method is adopted in the BFR process, especially when multiple Msg1 transmission methods of different beams are adopted, the BFR process and the subsequent related processes will be affected. The prior art does not provide an effective solution to these effects.

Disclosure of Invention

The invention solves the technical problem of ensuring the correct proceeding of the subsequent communication when the beam failure recovery is carried out by adopting the PRACH transmission of different beams for a plurality of times.

In order to solve the above technical problems, an embodiment of the present invention provides a physical uplink control channel transmission method, including: determining a path loss reference signal PLRS of a Physical Uplink Control Channel (PUCCH) resource according to a message transmitted during a random access procedure in response to successful beam failure recovery based on the random access procedure, wherein the random access procedure comprises multiple Physical Random Access Channel (PRACH) transmissions of different beams; and transmitting the PUCCH by using the PLRS.

Optionally, the step of determining the PLRS according to the message transmitted during the random access procedure is performed before the PLRS of the network update or the PUCCH resource configuration is received after a preset period of time has elapsed since the reception of the beam failure recovery success indication.

Optionally, the configured PLRS is carried through signaling for activating PUCCH spatial relationship information configuration.

Optionally, the preset period includes 28 orthogonal frequency division multiplexing OFDM symbols.

Optionally, the receiving the beam failure recovery success indication includes: and receiving a cell radio network temporary identifier C-RNTI or a physical downlink control channel PDCCH of a modulation and coding strategy radio network temporary identifier MCS-RNTI scrambling cyclic redundancy check CRC in a search space special for beam failure recovery.

Optionally, the determining the PLRS according to the message transmitted during the random access procedure includes: determining a preferred PRACH according to the random access opportunity RO resources occupied by each PRACH transmission; and determining the reference signal RS corresponding to the preferred PRACH as the PLRS.

Optionally, the determining the preferred PRACH according to the random access opportunity RO resources occupied by each of the multiple PRACH transmissions includes: and determining the PRACH corresponding to the RO resource which is the forefront or the rearmost in the time domain from the RO resources occupied by the PRACH transmissions, as the preferred PRACH.

Optionally, the determining the preferred PRACH according to the random access opportunity RO resources occupied by each of the multiple PRACH transmissions further includes: and if the number of the RO resources which are the forefront or the rearmost RO in the time domain is a plurality of, determining the PRACH corresponding to the RO resource which is the highest or the lowest in the frequency domain as the preferred PRACH.

Optionally, the determining the PLRS according to the message transmitted during the random access procedure includes: determining the PRACH with the optimal channel quality in the plurality of PRACH transmissions as a preferred PRACH; and determining the RS corresponding to the preferred PRACH as the PLRS.

Optionally, the determining the PLRS according to the message transmitted during the random access procedure includes: determining a preferred PRACH according to the index of each PRACH in the plurality of PRACH transmissions; and determining the RS corresponding to the preferred PRACH as the PLRS.

Optionally, the determining the preferred PRACH according to the index of each PRACH in the multiple PRACH transmissions includes: and determining the PRACH with the largest or smallest index value as the preferred PRACH.

Optionally, the determining the PLRS according to the message transmitted during the random access procedure includes: acquiring indication information during the process of receiving a second message of the random access procedure; and determining the PLRS according to the indication information.

Optionally, during the receiving of the second message of the random access procedure, the obtaining the indication information includes: acquiring the indication information from a Physical Downlink Shared Channel (PDSCH) used for bearing the second message; or, the indication information is obtained from a physical downlink control channel PDCCH for scheduling the PDSCH.

Optionally, the determining the PLRS according to the message transmitted during the random access procedure includes: and determining a reference signal corresponding to a receiving beam as the PLRS, wherein the receiving beam is used for receiving a second message of the random access procedure.

Optionally, the determining the PLRS according to the message transmitted during the random access procedure includes: and determining the PLRS adopted by the third message of the random access procedure as the PLRS.

Optionally, the multiple PRACH transmissions of the different beams are used to transmit the first message.

In order to solve the above technical problem, an embodiment of the present invention further provides a physical uplink control channel transmission device, including: a determining module, responsive to successful beam failure recovery based on a random access procedure, for determining a path loss reference signal PLRS of a physical uplink control channel PUCCH resource according to a message transmitted during the random access procedure, wherein the random access procedure includes multiple physical random access channel PRACH transmissions of different beams; and a transmission module, configured to transmit a PUCCH using the PLRS.

To solve the above technical problem, embodiments of the present invention further provide a computer readable storage medium, where the computer readable storage medium is a non-volatile storage medium or a non-transitory storage medium, and a computer program is stored thereon, and when the computer program is executed by a processor, the steps of the method described above are performed.

In order to solve the above technical problem, an embodiment of the present invention further provides a physical uplink control channel transmission device, which includes a memory and a processor, where the memory stores a computer program that can run on the processor, and the processor executes the steps of the method when running the computer program.

Compared with the prior art, the technical scheme of the embodiment of the invention has the following beneficial effects:

the embodiment of the invention provides a physical uplink control channel transmission method, which comprises the following steps: determining a path loss reference signal PLRS of a Physical Uplink Control Channel (PUCCH) resource according to a message transmitted during a random access procedure in response to successful beam failure recovery based on the random access procedure, wherein the random access procedure comprises multiple Physical Random Access Channel (PRACH) transmissions of different beams; and transmitting the PUCCH by using the PLRS.

When the beam failure recovery is carried out by adopting the multiple PRACH transmissions of different beams, the subsequent PUCCH transmission can be correctly carried out by adopting the scheme of the invention so as to ensure the normal operation of subsequent communication. Specifically, compared with the prior art, the reference signal corresponding to the new beam used in the beam failure recovery procedure is directly used as the PLRS, and since the PRACH transmission is performed multiple times through different beams during the beam failure recovery procedure in the present implementation scenario, the present embodiment provides an improved PLRS determination manner. The PLRS is determined according to a message transmitted during a random access procedure, not the beam itself, so that a terminal in an application scenario of beam failure recovery by multiple PRACH transmissions of different beams can correctly transmit the PUCCH after the beam failure recovery is successful, so as to ensure effective communication with the network.

Drawings

Fig. 1 is a flowchart of a physical uplink control channel transmission method according to an embodiment of the present invention;

FIG. 2 is a signaling interaction diagram of an exemplary application scenario according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a physical uplink control channel transmission device according to an embodiment of the present invention.

Detailed Description

As to the background art, when the mode of Msg1 repeated transmission is adopted in the BFR process, especially when the mode of multiple Msg1 transmission of different beams is adopted, the BFR process and the subsequent related processes are also affected.

For example, according to the relevant provisions of the existing protocol, within a control-resource set (abbreviated CORESET) for BFR or within a search space for BFR, a terminal (also called User Equipment, UE) successfully receives a cell radio network temporary identity (Cell Radio Network Temporary Identity, abbreviated C-RNTI) or modulates a reference signal corresponding to a new beam (new beam) used in the BFR procedure after 28 symbols (symbol) after a physical downlink control channel (Physical Downlink Control Channel, abbreviated PDCCH) of a coded strategy radio network temporary identity (Modulation and Coding Scheme Radio Network Temporary Identity, abbreviated MCS-RNTI) scrambling cyclic redundancy check (Cyclic redundancy check, CRC), such as 28 orthogonal frequency division multiplexing (Orthogonal Frequency Division Multiplexing, abbreviated OFDM) symbols, until the UE receives signaling for activating a physical uplink control channel (Physical Uplink Control Channel, PUCCH) spatial relationship information (spatial relationship info) configuration. The UE receives the C-RNTI or the PDCCH of the MCS-RNTI scrambling CRC in the search space special for beam failure recovery, and the success of beam failure recovery can be marked.

However, if the BFR procedure is performed by repeating transmission of different beams (diversity beams) by using Msg1 instead, how to select PLRS used for PUCCH is a problem to be solved because a plurality of beams are used in the BRF procedure.

In order to solve the above technical problems, an embodiment of the present invention provides a physical uplink control channel transmission method, including: determining a path loss reference signal PLRS according to a message transmitted during a random access procedure in response to successful beam failure recovery based on the random access procedure, wherein the random access procedure comprises multiple physical random access channel PRACH transmissions of different beams; and transmitting a Physical Uplink Control Channel (PUCCH) by using the PLRS.

When the beam failure recovery is carried out by adopting the multiple PRACH transmissions of different beams, the subsequent PUCCH transmission can be correctly carried out by adopting the scheme of the invention so as to ensure the normal operation of subsequent communication. Specifically, since PRACH transmission is performed multiple times through different beams during the beam failure recovery procedure in the present implementation scenario, the present embodiment provides an improved PLRS determination manner. The PLRS is determined according to a message transmitted during a random access procedure, not the beam itself, so that a terminal in an application scenario of beam failure recovery by multiple PRACH transmissions of different beams can correctly transmit the PUCCH after the beam failure recovery is successful, so as to ensure effective communication with the network.

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below.

In one implementation, for the scenario in which coverage is enhanced by transmitting multiple PRACH, multiple PRACH transmissions of the same beam and multiple PRACH transmissions of different beams are in principle suitable for BFR. Among other things, multiple PRACH transmissions of the same beam are less subject to protocol changes and thus more viable for protocol changes.

Accordingly, it may be specified in the future that BFR can only be performed in a conventional (legacy) manner, i.e., that Msg1 is not retransmitted (retransmission) or only Msg1 that uses the same beam is retransmitted. Which way is specifically adopted can be implicitly known through higher layer signaling configuration or through RACH resources. For example, if the base station does not configure resources dedicated to the retransmission of Msg1, the UE can default to the conventional manner, and otherwise can be considered to be capable of adopting the retransmission of Msg 1.

If the future protocol determines that the UE can use Msg1 repeated transmission of different beams to perform BFR, at least the PUCCH transmission stage after the BFR is successful needs to be adjusted accordingly to ensure that the UE can perform PUCCH transmission correctly. Next, the scene and the corresponding implementation will be described in detail.

Fig. 1 is a flowchart of a method for transmitting a physical uplink control channel according to an embodiment of the present invention.

The embodiment can be applied to a PUCCH transmission scenario after BFR is successful, and BFR is performed by Msg1 retransmission using different beams.

In a specific implementation, the physical uplink control channel transmission method provided in the following steps S101 to S102 may be executed by a chip with a PUCCH transmission function in a user equipment (may also be referred to as UE), or may be executed by a baseband chip in the user equipment.

Specifically, referring to fig. 1, the method for transmitting a physical uplink control channel according to the present embodiment may include the following steps:

step S101, in response to successful beam failure recovery based on a random access procedure, determining a path loss reference signal PLRS of a PUCCH resource according to a message transmitted during the random access procedure, wherein the random access procedure comprises multiple physical random access channel PRACH transmissions of different beams;

step S102, transmitting the PUCCH by using the PLRS.

Further, the multiple PRACH transmissions of different beams described in step S101 may be used to send a first message (i.e. the aforementioned message Msg 1). Multiple PRACH transmissions on different beams may be understood as having transmitted multiple PRACH, different PRACH occupying different random access opportunity (Random Access Occasion, RO) resources.

In one implementation, the BFR may be determined to be successful when the beam failure recovery success indication is received, and the UE needs to determine the PLRS for transmitting the PUCCH resource at this time after a preset period of time has elapsed since the beam failure recovery success indication was received, before the network updates or configures the PLRS of the PUCCH resource. The beam failure recovery success indication may refer to that the user terminal receives the C-RNTI or the MCS-RNTI-scrambled CRC PDCCH in a search space dedicated to beam failure recovery.

For example, after 28 symbols after successfully receiving the C-RNTI or MCS-RNTI-scrambled CRC PDCCH, the UE may perform step S101 to determine the PLRS by itself until signaling for activating or configuring a PUCCH spatial relationship information (spatial relationship info) configuration is received. The successful receiving of the PDCCH scrambled by the C-RNTI or the MCS-RNTI may determine that the BFR is successful, and the signaling for activating or configuring the PUCCH spatial relationship information configuration may carry the PLRS configured by the network. In one implementation, step S101 may include the steps of: determining a preferred PRACH according to RO resources occupied by each PRACH transmission; and determining the reference signal RS corresponding to the preferred PRACH as the PLRS.

In particular, RO resources occupied by each PRACH transmission may be consecutive in the time domain, such as may be ordered based on the index number of the RO resources. If the index numbers are the same in the time domain, the locations of different RO resources in the frequency domain may also be different.

For example, the PRACH corresponding to the RO resource that is most forward or most backward in the time domain among RO resources occupied by each of the PRACH transmissions may be determined as the preferred PRACH. The index numbers of all RO resources may be ordered, and the PRACH corresponding to the RO resource in which the order is the first or last may be determined as the preferred PRACH. And if the number of the RO resources which are the forefront or the rearmost RO in the time domain is a plurality of, determining the PRACH corresponding to the RO resource which is the highest or the lowest in the frequency domain as the preferred PRACH.

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

For another example, the PRACH that is transmitted earliest in time may be selected as the preferred PRACH, or the PRACH that is transmitted latest in time may be selected as the preferred PRACH.

For another example, among the reference signals corresponding to the PRACH transmissions, a reference signal having the smallest reference signal index number may be selected as the PLRS of the PUCCH resource, or a reference signal having the largest reference signal index number may be selected as the PLRS of the PUCCH resource.

For another example, one RO resource may be randomly selected from RO resources occupied by each of the multiple PRACH transmissions, and the PRACH corresponding to the RO resource may be determined to be the preferred PRACH.

Further, the network may pre-configure RS corresponding to each PRACH and indicate to the UE.

In one implementation, step S101 may include the steps of: determining the PRACH with the optimal channel quality in the plurality of PRACH transmissions as a preferred PRACH; and determining the RS corresponding to the preferred PRACH as the PLRS.

For example, the channel quality of the PRACH may be characterized based on its corresponding reference signal received power (Reference Signal Received Power, RSRP for short). For example, RSRP of a reference signal corresponding to the PRACH may be measured during the random access procedure.

In one implementation, step S101 may include the steps of: determining a preferred PRACH according to the index of each PRACH in the plurality of PRACH transmissions; and determining the RS of the preferred PRACH as the PLRS.

Specifically, the index of the PRACH may be preset by a network configuration or protocol.

For example, the PRACH having the largest or smallest value of the index may be determined as the preferred PRACH.

In one implementation, step S101 may include the steps of: acquiring indication information during reception of a second message (Msg 2) of the random access procedure; and determining the PLRS according to the indication information.

Specifically, msg2 (i.e., random access response, random Access Response, simply RAR) may be indicated to the UE by the network during the random access procedure.

Further, msg2 may be carried over a physical downlink shared channel (Physical Downlink Shared Channel, PDSCH for short). Accordingly, the indication information may be acquired from a PDSCH for carrying the second message. For example, PDSCH may be used to transmit a medium access Control layer Control Element (Media Access Control-Control Element, abbreviated as MAC-CE) of the RAR, and in this example, X bits may be added to the MAC-CE to indicate the PLRS corresponding to the PUCCH resource. Wherein X may be any positive integer.

For another example, the indication information may be obtained from a physical downlink control channel (Physical Downlink Control Channel, abbreviated PDCCH) on which the PDSCH is scheduled. An indication field may be additionally carried in the PDCCH of the MAC-CE for scheduling the RAR to indicate the PLRS corresponding to the PUCCH resource.

Further, PLRS may be directly indicated in the indication information. Alternatively, the indication information may indicate an RS corresponding to PRACH transmitted using which one of different beams as a PLRS corresponding to PUCCH resources.

In one implementation, step S101 may include the steps of: and determining an RS corresponding to a receiving beam as the PLRS, wherein the receiving beam is used for receiving a second message of the random access procedure.

In one implementation, step S101 may include the steps of: a PLRS employed for transmitting a third message (Msg 3) of the random access procedure is determined as the PLRS.

For example, an RS corresponding to a transmission beam transmitting Msg3 may be determined as PLRS.

By adopting the scheme of the invention, when the beam failure recovery is carried out by adopting the multiple PRACH transmissions of different beams, the subsequent PUCCH transmission can be correctly carried out so as to ensure the normal operation of the subsequent communication.

Specifically, since PRACH transmission is performed multiple times through different beams during the beam failure recovery procedure in the present implementation scenario, the present embodiment provides an improved PLRS determination manner. The PLRS is determined according to a message transmitted during a random access procedure, not the beam itself, so that a terminal in an application scenario of beam failure recovery by multiple PRACH transmissions of different beams can correctly transmit the PUCCH after the beam failure recovery is successful, so as to ensure effective communication with the network.

Fig. 2 is a signaling interaction diagram of an exemplary application scenario according to an embodiment of the present invention.

In this scenario, in conjunction with fig. 2, ue21 may perform operation s201 to perform a BFR procedure based on multiple PRACH transmissions of different beams.

Next, the base station 22 performs operation s202 to transmit the PDCCH scrambled with the C-RNTI or the MSC-RNTI to the UE 21. Accordingly, the UE21 successfully receives the PDCCH scrambled with the C-RNTI or the MSC-RNTI and confirms that the BFR was successful.

After 28 OFDM symbols have passed after the successful confirmation of the BFR, if no signaling for activating PUCCH spatial relationship information configuration sent by the base station 22 is received, the UE21 performs operation s203 to determine the PLRS by itself based on the scheme shown in fig. 1.

Next, the UE21 performs operation s204 to transmit the PUCCH to the base station 22 using the determined PLRS.

In a variation, before/at the same time as/after performing operations s203 and 204, if a signaling for activating PUCCH spatial relationship information configuration sent by the base station 22 by performing operation s208 is received, the UE21 may perform operation s209 and send PUCCH using the PLRS configured in the signaling. At this time, the UE21 will not transmit PUCCH using PLRS determined based on operation s 203.

Fig. 3 is a schematic structural diagram of a physical uplink control channel transmission device according to an embodiment of the present invention. Those skilled in the art will appreciate that the physical uplink control channel transmission device 3 in this embodiment may be used to implement the method technical solution described in the embodiment described in fig. 1. For example, the physical uplink control channel transmission apparatus 3 may be integrated with the UE21 shown in fig. 2, or coupled with the UE 21.

Specifically, referring to fig. 3, the physical uplink control channel transmission apparatus 3 according to the present embodiment may include: a determining module 31, responsive to successful beam failure recovery based on a random access procedure, for determining a path loss reference signal PLRS of a PUCCH resource according to a message transmitted during the random access procedure, wherein the random access procedure includes multiple physical random access channel PRACH transmissions of different beams; a transmission module 32, configured to transmit a PUCCH using the PLRS.

For more details of the working principle and the working manner of the physical uplink control channel transmission device 3, reference may be made to the description related to fig. 1, which is not repeated here.

In a specific implementation, the above-mentioned physical uplink control channel transmission device 3 may correspond to a Chip with a PUCCH transmission function in a user equipment, or corresponds to a Chip with a data processing function, for example, a System-On-a-Chip (SOC for short), a baseband Chip, etc.; or corresponds to a chip module including a chip with a PUCCH transmission function in the user equipment; or corresponds to a chip module having a data processing function chip or corresponds to a user equipment.

In a specific implementation, regarding each apparatus and each module/unit included in each product described in the above embodiments, it may be a software module/unit, or a hardware module/unit, or may be a software module/unit partially, or a hardware module/unit partially.

For example, for each device or product applied to or integrated on a chip, each module/unit included in the device or product may be implemented in hardware such as a circuit, or at least part of the modules/units may be implemented in software program, where the software program runs on a processor integrated inside the chip, and the rest (if any) of the modules/units may be implemented in hardware such as a circuit; for each device and product applied to or integrated in the chip module, each module/unit contained in the device and product can be realized in a hardware manner such as a circuit, different modules/units can be located in the same component (such as a chip, a circuit module and the like) or different components of the chip module, or at least part of the modules/units can be realized in a software program, the software program runs on a processor integrated in the chip module, and the rest (if any) of the modules/units can be realized in a hardware manner such as a circuit; for each device, product, or application to or integrated with the terminal, each module/unit included in the device, product, or application may be implemented by using hardware such as a circuit, different modules/units may be located in the same component (for example, a chip, a circuit module, or the like) or different components in the terminal, or at least part of the modules/units may be implemented by using a software program, where the software program runs on a processor integrated inside the terminal, and the remaining (if any) part of the modules/units may be implemented by using hardware such as a circuit.

The embodiment of the invention also provides a computer readable storage medium, which is a non-volatile storage medium or a non-transient storage medium, and a computer program is stored on the computer readable storage medium, and the computer program is executed by a processor to execute the steps of the physical uplink control channel transmission method provided by the embodiment shown in the above fig. 1 and 2. Preferably, the storage medium may include a computer-readable storage medium such as a non-volatile (non-volatile) memory or a non-transitory (non-transitory) memory. The storage medium may include ROM, RAM, magnetic or optical disks, and the like.

The embodiment of the invention also provides another physical uplink control channel transmission device, which comprises a memory and a processor, wherein the memory stores a computer program which can be run on the processor, and the processor executes the steps of the physical uplink control channel transmission method provided by the embodiment shown in the above-mentioned figures 1 and 2 when running the computer program. For example, the physical uplink control channel transmission device may be integrated with or coupled to the user equipment.

Those of ordinary skill in the art will appreciate that all or a portion of the steps in the various methods of the above embodiments may be implemented by a program that instructs related hardware, the program may be stored on a computer readable storage medium, and the storage medium may include: ROM, RAM, magnetic or optical disks, etc.

The technical scheme of the invention can be applied to 5G (5 generation) communication systems, 4G and 3G communication systems, and various communication systems of subsequent evolution, such as 6G and 7G.

A Base Station (BS), which may also be referred to as a base station device, in the embodiments of the present application is a device deployed in a radio access network to provide a wireless communication function. The apparatus for providing a base station function in the 2G network includes a base Radio transceiver station (base transceiver station, BTS) and a base station controller (base station controller, BSC), the apparatus for providing a base station function in the 3G network includes a node B (NodeB) and a Radio network controller (Radio network controller, RNC), the apparatus for providing a base station function in the 4G network includes an evolved node B (eNB), the apparatus for providing a base station function in the wireless local area network (wireless local area networks, WLAN) is an Access Point (AP), the apparatus for providing a base station function in the 5G New Radio (NR) includes a continuously evolved node B (gNB), and the apparatus for providing a base station function in the future New communication system, and the like.

A terminal in an embodiment of the present application may refer to various forms of User Equipment (UE), an access terminal, a subscriber unit, a subscriber station, a Mobile Station (MS), a remote station, a remote terminal, a mobile device, a user terminal, a terminal device (terminal equipment), a wireless communication device, a user agent, or a user equipment. The terminal device may also be a cellular telephone, a cordless telephone, a session initiation protocol (Session Initiation Protocol, SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital assistant (Personal Digital Assistant, PDA), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a future 5G network or a terminal device in a future evolved public land mobile network (Public Land Mobile Network, PLMN), etc., as the embodiments of the application are not limited in this respect.

It should be understood that the term "and/or" is merely an association relationship describing the associated object, and means that three relationships may exist, for example, a and/or B may mean: a exists alone, A and B exist together, and B exists alone. In this context, the character "/" indicates that the front and rear associated objects are an "or" relationship.

The term "plurality" as used in the embodiments herein refers to two or more.

The first, second, etc. descriptions in the embodiments of the present application are only used for illustrating and distinguishing the description objects, and no order division is used, nor does it indicate that the number of the devices in the embodiments of the present application is particularly limited, and no limitation on the embodiments of the present application should be construed.

It should be understood that, in various embodiments of the present application, the sequence numbers of the foregoing processes do not mean the order of execution, and the order of execution of the processes should be determined by the functions and internal logic thereof, and should not constitute any limitation on the implementation process of the embodiments of the present application.

In the several embodiments provided in the present application, it should be understood that the disclosed method, apparatus, and system may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.

Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the invention, and the scope of the invention should be assessed accordingly to that of the appended claims.

Claims

1. A method for transmitting a physical uplink control channel, comprising:

determining a path loss reference signal PLRS of a Physical Uplink Control Channel (PUCCH) resource according to a message transmitted during a random access procedure in response to successful beam failure recovery based on the random access procedure, wherein the random access procedure comprises multiple Physical Random Access Channel (PRACH) transmissions of different beams;

and transmitting the PUCCH by using the PLRS.

2. The method of claim 1 wherein the step of determining the PLRS from the message transmitted during the random access procedure is performed after a preset period of time has elapsed since the reception of the beam failure recovery success indication, before the network update or the PLRS configuring the PUCCH resource is received.

3. The method of claim 2, wherein the PLRS configured is carried over signaling for activating PUCCH spatial relationship information configuration.

4. The method of claim 2, wherein the predetermined period of time comprises 28 orthogonal frequency division multiplexing, OFDM, symbols.

5. The method of claim 2, wherein receiving the beam failure recovery success indication comprises: and receiving a cell radio network temporary identifier C-RNTI or a physical downlink control channel PDCCH of a modulation and coding strategy radio network temporary identifier MCS-RNTI scrambling cyclic redundancy check CRC in a search space special for beam failure recovery.

6. The method of claim 1, wherein the determining PLRS from messages transmitted during a random access procedure comprises:

determining a preferred PRACH according to the random access opportunity RO resources occupied by each PRACH transmission;

and determining the reference signal RS corresponding to the preferred PRACH as the PLRS.

7. The method of claim 6, wherein the determining a preferred PRACH from the random access occasion RO resources each occupied by the plurality of PRACH transmissions comprises:

and determining the PRACH corresponding to the RO resource which is the forefront or the rearmost in the time domain from the RO resources occupied by the PRACH transmissions, as the preferred PRACH.

8. The method of claim 7, wherein the determining a preferred PRACH from the random access occasion RO resources each occupied by the plurality of PRACH transmissions further comprises:

and if the number of the RO resources which are the forefront or the rearmost RO in the time domain is a plurality of, determining the PRACH corresponding to the RO resource which is the highest or the lowest in the frequency domain as the preferred PRACH.

9. The method of claim 1, wherein the determining PLRS from messages transmitted during a random access procedure comprises:

determining the PRACH with the optimal channel quality in the plurality of PRACH transmissions as a preferred PRACH; and determining the RS corresponding to the preferred PRACH as the PLRS.

10. The method of claim 1, wherein the determining PLRS from messages transmitted during a random access procedure comprises:

determining a preferred PRACH according to the index of each PRACH in the plurality of PRACH transmissions;

and determining the RS corresponding to the preferred PRACH as the PLRS.

11. The method of claim 10, wherein the determining a preferred PRACH from the index of each PRACH of the plurality of PRACH transmissions comprises:

and determining the PRACH with the largest or smallest index value as the preferred PRACH.

12. The method of claim 1, wherein the determining PLRS from messages transmitted during a random access procedure comprises:

acquiring indication information during the process of receiving a second message of the random access procedure;

and determining the PLRS according to the indication information.

13. The method of claim 12, wherein the obtaining the indication information during the receiving of the second message of the random access procedure comprises:

acquiring the indication information from a Physical Downlink Shared Channel (PDSCH) used for bearing the second message; or,

and acquiring the indication information from a Physical Downlink Control Channel (PDCCH) for scheduling the PDSCH.

14. The method of claim 1, wherein the determining PLRS from messages transmitted during a random access procedure comprises:

and determining a reference signal corresponding to a receiving beam as the PLRS, wherein the receiving beam is used for receiving a second message of the random access procedure.

15. The method of claim 1, wherein the determining PLRS from messages transmitted during a random access procedure comprises:

and determining the PLRS adopted by the third message of the random access procedure as the PLRS.

16. The method of any one of claims 1 to 15, wherein multiple PRACH transmissions of the different beams are used to transmit a first message.

17. A physical uplink control channel transmission apparatus, comprising:

a determining module, responsive to successful beam failure recovery based on a random access procedure, for determining a path loss reference signal PLRS of a physical uplink control channel PUCCH resource according to a message transmitted during the random access procedure, wherein the random access procedure includes multiple physical random access channel PRACH transmissions of different beams;

and a transmission module, configured to transmit a PUCCH using the PLRS.

18. A computer readable storage medium, being a non-volatile storage medium or a non-transitory storage medium, having stored thereon a computer program, characterized in that the computer program when executed by a processor performs the steps of the method according to any of claims 1 to 16.

19. A physical uplink control channel transmission apparatus comprising a memory and a processor, the memory having stored thereon a computer program executable on the processor, wherein the processor performs the steps of the method of any of claims 1 to 16 when the computer program is executed.