WO2024093048A1

WO2024093048A1 - Method for repeated transmission of hybrid automatic repeat request acknowledgement of msg4, and device

Info

Publication number: WO2024093048A1
Application number: PCT/CN2023/076417
Authority: WO
Inventors: 丁勇; 云翔; 肖昌文; 张博广; 孙立新
Original assignee: 北京佰才邦技术股份有限公司
Priority date: 2022-11-04
Filing date: 2023-02-16
Publication date: 2024-05-10
Also published as: CN117997491A

Abstract

The present application relates to the technical field of wireless communications, and provides a method for repeated transmission of hybrid automatic repeat request acknowledgement of Msg4, and a device. The method comprises: according to user request signaling and/or network indication signaling, acquiring the number of repeated transmissions of a PUCCH corresponding to a user terminal; and after Msg4 is sent, according to the number of repeated transmissions, repeatedly receiving hybrid automatic repeat request acknowledgement of the Msg4 fed back by the user terminal.

Description

Msg4 hybrid automatic repeat request confirmation repeated transmission method and device

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims priority to Chinese Patent Application No. 202211380061.6 filed in China on November 4, 2022, the entire contents of which are incorporated herein by reference.

Technical Field

The present application relates to the field of wireless communication technology, and in particular to a repeated transmission method and device for Msg4 hybrid automatic repeat request confirmation.

Background technique

Coverage is one of the key factors of communication networks, which directly affects the service quality and operating costs of communication networks. Among them, how to enhance the physical uplink control channel (PUCCH) is an important research direction. In the 5G New Radio (NR) technology, the hybrid automatic repeat request-ACK acknowledgement (HARQ-ACK) of message 4 (Msg4) needs to be carried by PUCCH. In the current 5G NR standard, repeated transmission of PUCCH carrying msg4 HARQ-ACK is not supported. Therefore, in the case of large path loss and limited transmission power of user equipment (UE), especially for 5G NR non-terrestrial network (NTN), or 5G-based satellite access system, the base station side may not be able to correctly detect PUCCH, and cannot complete the response of random access process Msg4, thereby failing to complete the random access process.

Summary of the invention

The technical purpose to be achieved by the embodiments of the present application is to provide a method and device for repeated transmission of Msg4 hybrid automatic repeat request confirmation, so as to solve the problem that the current 5G NR technology does not support the repeated transmission of PUCCH for Msg4 hybrid automatic repeat request confirmation, and there is a problem that the random access process cannot be completed.

The embodiment of the present application provides a repeated transmission method of a Msg4 hybrid automatic repeat request confirmation, which is applied to a network side device, including:

According to the user request signaling and/or the network indication signaling, the number of repeated transmissions of the physical uplink control channel PUCCH corresponding to the user terminal is obtained, wherein the user request signaling includes: Msg1 request and/or Msg3 request, The network indication signaling includes: public signaling and/or user-specific signaling;

After sending Msg4, the hybrid automatic repeat request confirmation of Msg4 fed back by the user terminal is repeatedly received according to the number of repeated transmissions.

Optionally, in the repeated transmission method as described above, obtaining the number of repeated transmissions according to the user request signaling includes:

Acquire first information of whether the user terminal supports repeated transmission of the PUCCH from the Msg1 request or the Msg3 request;

When the first information indicates that the user terminal supports repeated transmission of the PUCCH, the number of repeated transmissions is obtained from the Msg1 request or the Msg3 request.

Optionally, in the repeated transmission method as described above, obtaining the number of repeated transmissions according to the user request signaling and the network indication signaling includes:

First information on whether the user terminal supports repeated transmission of the PUCCH is obtained from the Msg1 request or the Msg3 request, and the number of repeated transmissions is obtained according to the network indication signaling.

Optionally, in the repeated transmission method as described above, obtaining the number of repeated transmissions according to the common signaling in the network indication signaling includes:

According to a first field or a first mixed field of a first signaling of the common signaling, the number of repeated transmissions is obtained from a first configuration list, wherein the first mixed field includes at least two of the first fields, and the first signaling includes at least one of: a radio resource control (RRC) signaling, a system information block (SIB) signaling, a main information block (MIB) signaling, and a common downlink control information (DCI);

Alternatively, a second configuration list about the number of repeated transmissions is obtained from a second signaling of the common signaling, or a first configuration set in the first configuration list is obtained from the second signaling, and the number of repeated transmissions is obtained from the second configuration list or the first configuration set according to a third signaling of the common signaling, where the second signaling includes: the RRC signaling and/or the SIB signaling, and the third signaling includes: the MIB signaling and/or the common DCI;

Alternatively, the second configuration list is obtained from the second signaling, a second configuration set in the second configuration list is obtained from the first signaling, and the number of repeated transmissions is obtained from the second configuration set according to the third signaling.

Optionally, in the repeated transmission method as described above, obtaining the number of repeated transmissions according to the user-specific signaling in the network indication signaling includes:

acquiring the number of repeated transmissions from a first configuration list regarding the number of repeated transmissions according to a second field or a second mixed field in a fourth signaling of the user-specific signaling, wherein the second mixed field includes at least two of the second fields, and the fourth signaling includes: a DCI for scheduling Msg2, a DCI for scheduling Msg3, a DCI for scheduling Msg4, at least one of MSg2 and Msg4;

Alternatively, obtaining a second configuration list about the number of repeated transmissions from a fifth signaling of the user-specific signaling, or, obtaining the first configuration set in the first configuration list from the fifth signaling, and obtaining the number of repeated transmissions from the second configuration list or the first configuration set according to the sixth signaling of the user-specific signaling, the fifth signaling including: the RAR information of the MSg2 and/or the Msg4, the sixth signaling including: the DCI of the scheduling Msg2, the DCI of the scheduling Msg3, the DCI of the scheduling Msg4, and at least one item of the RAR UL GRANT information of the MSg2;

Alternatively, the second configuration list is obtained from the fifth signaling, the second configuration set in the second configuration list is obtained from the fourth signaling, and the number of repeated transmissions is obtained from the second configuration set according to the sixth signaling.

Optionally, in the repeated transmission method as described above, obtaining the number of repeated transmissions according to the common signaling and the user-specific signaling in the network indication signaling includes:

Acquire a first configuration set in a first configuration list about the number of repeated transmissions or a second configuration list about the number of repeated transmissions from the common signaling, and acquire the number of repeated transmissions from the first configuration set or the first configuration list according to the user-specific signaling, wherein the common signaling includes: at least one of RRC signaling, SIB signaling, MIB signaling, and common DCI, and the user-specific signaling includes: at least one of DCI for scheduling Msg2, DCI for scheduling Msg3, DCI for scheduling Msg4, MSg2, and Msg4;

Alternatively, the second configuration list is obtained from the common signaling, a second configuration set of the second configuration list is obtained from the common signaling or the user-specific signaling, and the number of repeated transmissions is obtained from the second configuration set according to the user-specific signaling.

Another embodiment of the present application further provides a method for repeated transmission of a Msg4 hybrid automatic repeat request confirmation, which is applied to a user terminal and includes:

Sending a user request signaling to a network side device, wherein the user request signaling carries first information of whether the user terminal supports repeated transmission of PUCCH and at least one of the number of repeated transmissions, and the user request signaling includes: a Msg1 request and/or a Msg3 request;

In the case that the user terminal supports repeated transmission of PUCCH, after receiving Msg4 sent by the network side device, Msg4 hybrid automatic repeat request confirmation is repeatedly sent to the network side device according to the number of repeated transmissions.

Another embodiment of the present application further provides a network side device, including:

A first processing module, configured to obtain the number of repeated transmissions of the PUCCH corresponding to the user terminal from the user request signaling and/or the network indication signaling, wherein the user request signaling includes: Msg1 request and/or Msg3 request, and the network indication signaling includes: common signaling and/or user-specific signaling;

The second processing module is used to repeatedly receive the hybrid automatic repeat request confirmation of Msg4 fed back by the user terminal according to the number of repeated transmissions after sending Msg4.

Another embodiment of the present application further provides a user terminal, including:

The third processing module is used to send a user request signaling to the network side device, wherein the user request signaling carries the first information of whether the user terminal supports repeated transmission of PUCCH and/or the number of repeated transmissions, and the user request signaling The command includes: Msg1 request and/or Msg3 request;

The fourth processing module is used to repeatedly send a hybrid automatic repeat request confirmation Msg4 to the network side device according to the number of repeated transmissions after receiving the Msg4 sent by the network side device when the user terminal supports repeated transmission of PUCCH.

Another embodiment of the present application also provides an electronic device, including a processor, a memory, and a computer program stored in the memory and executable on the processor, wherein the computer program, when executed by the processor, implements the steps of the method for repeated transmission of the Msg4 hybrid automatic repeat request confirmation applied to the network side device as described above, or implements the steps of the method for repeated transmission of the Msg4 hybrid automatic repeat request confirmation applied to the user terminal as described above.

Another embodiment of the present application further provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the steps of the repeated transmission method of the Msg4 hybrid automatic repeat request confirmation applied to the network side device as described above are implemented, or the steps of the repeated transmission method of the Msg4 hybrid automatic repeat request confirmation applied to the user terminal as described above are implemented.

Another embodiment of the present application also provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement the steps of the repeated transmission method of the Msg4 hybrid automatic repeat request confirmation applied to the network side device as described above, or to implement the steps of the repeated transmission method of the Msg4 hybrid automatic repeat request confirmation applied to the user terminal as described above.

Another embodiment of the present application also provides a computer program product, which is stored in a non-volatile storage medium, and is executed by at least one processor to implement the steps of the repeated transmission method of Msg4 hybrid automatic repeat request confirmation applied to the network side device as described above, or to implement the steps of the repeated transmission method of Msg4 hybrid automatic repeat request confirmation applied to the user terminal as described above.

Compared with the related art, the method and device for repeated transmission of Msg4 hybrid automatic repeat request confirmation provided in the embodiment of the present application have at least the following beneficial effects:

During the random access process between the user terminal and the network side device, the present application will first determine the number of repeated transmissions of the Msg4 hybrid automatic repeat request confirmation, and then repeat the transmission of the Msg4 hybrid automatic repeat request confirmation according to the number of repeated transmissions, thereby realizing the repeated transmission of the Msg4 hybrid automatic repeat request confirmation, effectively avoiding the influence of the path loss and transmission power limitation of the user terminal on the transmission of the Msg4 hybrid automatic repeat request confirmation, which is conducive to completing the random access process, thereby improving the service quality of the communication network.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a flow chart of a method for repeated transmission of a Msg4 hybrid automatic repeat request confirmation applied to a network side device;

FIG2 is a flow chart of a method for repeated transmission of a hybrid automatic repeat request confirmation of Msg4 applied to a user terminal;

FIG3 is a schematic diagram of the structure of a network side device;

FIG. 4 is a schematic diagram of the structure of a user terminal.

Detailed ways

To make the technical problems, technical solutions and advantages to be solved by the present application clearer, the following will be described in detail in conjunction with the accompanying drawings and specific embodiments. In the following description, specific details such as specific configurations and components are provided only to help fully understand the embodiments of the present application. Therefore, it should be clear to those skilled in the art that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the present application. In addition, for clarity and brevity, the description of known functions and structures has been omitted.

It should be understood that the references to "one embodiment" or "an embodiment" throughout the specification mean that the specific features, structures, or characteristics associated with the embodiment are included in at least one embodiment of the present application. Therefore, the references to "in one embodiment" or "in an embodiment" appearing throughout the specification do not necessarily refer to the same embodiment. In addition, these specific features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

In the various embodiments of the present application, it should be understood that the size of the serial numbers of the following processes does not mean 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 the present application.

It should be understood that the term "and/or" in this article is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and/or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character "/" in this article generally indicates that the associated objects before and after are in an "or" relationship.

In the embodiments provided in the present application, it should be understood that "B corresponding to A" means that B is associated with A, and B can be determined according to A. However, it should also be understood that determining B according to A does not mean determining B only according to A, and B can also be determined according to A and/or other information.

It should be noted that the network side equipment in this application includes but is not limited to base stations.

Referring to FIG. 1 , an embodiment of the present application provides a method for repeated transmission of a Msg4 hybrid automatic repeat request confirmation, which is applied to a network side device, including:

Step S101, obtaining the number of repeated transmissions of a physical uplink control channel PUCCH corresponding to a user terminal according to a user request signaling and/or a network indication signaling, wherein the user request signaling includes: a Msg1 request and/or a Msg3 request, and the network indication signaling includes: a common signaling and/or a user-specific signaling;

Step S102: after sending Msg4, repeatedly receiving the hybrid automatic repeat request confirmation of Msg4 fed back by the user terminal according to the number of repeated transmissions.

During the random access process, after receiving the Msg4 sent by the network side device, the terminal will send a Msg4 hybrid automatic retransmission request confirmation to the network side device. In order to facilitate the network side device to accurately receive the Msg4 hybrid automatic retransmission request confirmation, the user terminal preferably adopts a repeated transmission method. Therefore, in order to ensure the connection between the network side device and the user terminal, in one embodiment of the present application, when the network side device performs a random access process with the user terminal, it will obtain the number of repeated transmissions of the PUCCH corresponding to the user terminal from the user request signaling or the network indication signaling, so as to facilitate repeated reception of the Msg4 hybrid automatic retransmission request confirmation fed back by the user terminal according to the number of repeated transmissions after sending the Msg4, so as to complete the random access process. This solves the problem that the existing 5G NR technology does not support the Msg4 hybrid automatic retransmission request confirmation. The problem of repeated transmission is solved. When obtaining the number of repeated transmissions of PUCCH, the number of repeated transmissions can be obtained from user request signaling or network indication signaling, or the number of repeated transmissions can be obtained by combining user request signaling and network indication signaling. Preferably, the user request signaling includes: Msg1 request and/or Msg3 request, and the network indication signaling includes: public signaling and/or user-specific signaling.

To summarize, during the random access process between the user terminal and the network side device, the present application will first determine the number of repeated transmissions of the Msg4 hybrid automatic repeat request confirmation, and then perform repeated transmissions of the Msg4 hybrid automatic repeat request confirmation according to the number of repeated transmissions, thereby realizing repeated transmissions of the Msg4 hybrid automatic repeat request confirmation, effectively avoiding the impact of the path loss and transmission power limitations of the user terminal on the transmission of the Msg4 hybrid automatic repeat request confirmation, and facilitating the completion of the random access process, thereby improving the service quality of the communication network.

In one embodiment of the present application, when the network side device can obtain the number of repeated transmissions only from the user request signaling, preferably, the first information of whether the corresponding user terminal supports PUCCH repeated transmission is obtained from the Msg1 request or the Msg3 request. If the first information indicates that the user terminal does not support repeated transmission, it can be determined that the user terminal cannot repeatedly send the Msg4 hybrid automatic repeat request confirmation. Therefore, when performing random access, the network side device does not need to repeatedly receive the Msg4 hybrid automatic repeat request confirmation;

When the first information indicates that the user terminal supports PUCCH repeated transmission, it can be determined that the user terminal can repeatedly transmit Msg4 hybrid automatic repeat request confirmation. At this time, the network side device needs to repeatedly receive the Msg4 hybrid automatic repeat request confirmation to ensure that the Msg4 hybrid automatic repeat request confirmation can be correctly received. At this time, the number of repeated transmissions can be obtained from the Msg1 request or the Msg3 request.

In a specific embodiment, when the above-mentioned first information and the number of repeated transmissions are both carried by Msg1 request, the first information and the number of repeated transmissions can be carried in the physical random access channel (PRACH) preamble index, namely, the PRACH preamble index.

In another specific embodiment, when the above-mentioned first information and the number of repeated transmissions are both carried by a Msg3 request, the first information and the number of repeated transmissions may be respectively carried in a signaling of the Msg3 request, for example: the signaling carrying the first information is: Msg4-PUCCH-repetitioncapabilityindicator ENUMERATED{Enable, Disable}, wherein Enable indicates support for PUCCH repeated transmission, and Disable indicates that PUCCH repeated transmission is not supported; the signaling carrying the number of repeated transmissions is: Msg4-Pucch-RepetitionNrofSlots ENUMERATED{n1, n2, …, m}, wherein n1, n2, …, m indicates the specific number of repeated transmissions.

In another specific embodiment, the first information and the number of repeated transmissions can be carried by Msg1 request and Msg3 request respectively. Preferably, the first information is carried by Msg1 request, for example, carried in a preset PRACH preamble. In the index, the number of repeated transmissions is carried by the Msg3 request, for example:

Carried in the signaling Msg4-Pucch-RepetitionNrofSlots ENUMERATED{n1，n2，…，m}.

It should be noted that the first information described in this article includes but is not limited to a dedicated information, or a general information that can be identified by the network side device, and the network side device can determine whether the user terminal supports PUCCH repeated transmission based on the general information.

In one embodiment of the present application, when the network side device needs to obtain the number of repeated transmissions based on user request signaling and network indication signaling, preferably, the first information of whether the corresponding user terminal supports PUCCH repeated transmission is obtained from the Msg1 request or the Msg3 request. If the first information indicates that the user terminal does not support repeated transmission, it can be determined that the user terminal cannot repeatedly transmit the Msg4 hybrid automatic repeat request confirmation. When performing random access, the network side device does not need to repeatedly receive the Msg4 hybrid automatic repeat request confirmation. At this time, the network side device may no longer obtain the number of repeated transmissions based on the network indication signaling, or fix the number of repeated transmissions obtained based on the network indication signaling to 1, or do not send the network indication signaling carrying the number of repeated transmissions to the user terminal.

If the first information indicates that the user terminal supports PUCCH repeated transmission, it can be determined that the user terminal can repeatedly transmit Msg4 hybrid automatic repeat request confirmation. At this time, the network side device needs to repeatedly receive the Msg4 hybrid automatic repeat request confirmation to ensure that the Msg4 hybrid automatic repeat request confirmation can be correctly received. At this time, the specific number of repeated transmissions can be obtained according to the network indication signaling. Optionally, the number of repeated transmissions will also be carried in the network indication signaling and sent to the user terminal.

In a specific embodiment, the first information is carried in the PRACH preamble index requested by Msg1, or is carried in Msg4-Pucch-RepetitionNrofSlots ENUMERATED{n1, n2, …, m} requested by Msg3.

In one embodiment of the present application, when the network side device needs to obtain the number of repeated transmissions according to the network indication signaling (including: the case where the number of repeated transmissions is obtained only according to the network indication signaling and the first information is obtained from the Msg1 request or the Msg3 request, and the number of repeated transmissions is obtained according to the network indication signaling), it can be obtained specifically according to the public signaling and/or user-dedicated signaling in the network indication signaling. The following discusses the three cases of obtaining according to public signaling, obtaining according to user-dedicated signaling, and obtaining according to public signaling and user-dedicated signaling, respectively.

Acquire the number of repeated transmissions from a first configuration list according to a first field or a first mixed field of a first signaling of the common signaling, where the first mixed field includes at least two of the first fields, and the first signaling includes: at least one of radio resource control RRC signaling, system information block SIB signaling, master information block MIB signaling, and common downlink control information DCI;

When the number of repeated transmissions is obtained only based on public signaling, since public signaling may include multiple sub-signals, such as RRC signaling, SIB signaling, MIB signaling and public DCI; the number of repeated transmissions may be carried in one sub-signaling, or in multiple sub-signals.

In one embodiment, when the number of repeated transmissions is carried in a sub-signaling, the number of repeated transmissions can be obtained from a first configuration list based on the first field or the first mixed field of the first signaling of the public signaling, wherein the first mixed field includes at least two first fields, preferably at least part of the bits in at least two first fields, the first signaling includes: at least one of RRC signaling, SIB signaling, MIB signaling and public DCI, and the first configuration list is a configuration list regarding the number of repeated transmissions predetermined according to the protocol.

In a specific embodiment, when the first signaling is RRC signaling or SIB signaling, the first field is: Msg4-Pucch-RepetitionNrofSlots ENUMERATED{n1, n2, …, m}, where n1, n2, …, m indicates the specific number of repeated transmissions in the first configuration list, and the first configuration list corresponds to at least one user terminal.

In a specific embodiment, when the first signaling is MIB signaling or public DCI, the first field may be a field that does not exist in the original protocol, that is, a newly added field, for example: Msg4-Pucch-RepetitionNrofSlots indicator-n bit (n is greater than or equal to 0); the value of this field {0…0, 0…1, …, 1…1} may indicate a specific number of repeated transmissions in the first configuration list;

The first field may also be some bits of an existing field in the original protocol, wherein the values of the some bits {0...0, 0...1, ..., 1...1} may indicate a specific number of repeated transmissions in the first configuration list.

In a specific embodiment, when the first signaling is MIB signaling or public DCI, the first hybrid field may be a combination of at least two of the above-mentioned existing fields, wherein the existing field includes but is not limited to a preset number of most significant bits (MSB) and least significant bits (LSB). At this time, the value of the first hybrid field {0…0, 0…1, …, 1…1} is used to indicate a specific number of repeated transmissions in the first configuration list;

Alternatively, the first hybrid field may be a combination of at least one of the above-mentioned existing fields and a newly added field, wherein the existing field includes but is not limited to a preset number of MSB bits and LSB bits. In this case, the value {0…0, 0…1, …, 1…1} of the first hybrid field is used to indicate a specific number of repeated transmissions in the first configuration list.

It should be noted that the existing fields in the MIB signaling include but are not limited to: system frame number (systemFrameNumber) field, common subcarrier spacing (subCarrierSpacingCommon) field, SSB subcarrier offset (ssb-SubcarrierOffset) field, dmrs-TypeA position (dmrs-TypeA-Position) field, PDCCH SIB1 configuration (pdcch-ConfigSIB1) field, cell blocking indication (cellBarred) field, intra-frequency reselection indication (intraFreqReselection) field, spare (spare) field.

Existing fields in the public DCI include, but are not limited to, frequency domain resource assignment field, time domain resource assignment field, VRB-to-PRB mapping field, modulation and coding scheme field, reserved bits field, Short Messages Indicator field, Short Messages field, TB scaling factor field and TRS availability indication field.

In another embodiment, when the number of repeated transmissions is carried in multiple sub-signals, a second configuration list about the number of repeated transmissions can be obtained from the second signaling of the common signaling, or a first configuration set in the first configuration list can be obtained from the second signaling, and the number of repeated transmissions can be obtained from the second configuration list or the first configuration set according to the third signaling of the common signaling. The second signaling includes: RRC signaling and/or SIB signaling, and the third signaling includes: MIB signaling and/or common DCI.

Optionally, the signaling or field carrying the second configuration list in the second signaling is expressed as: numberOfMsg4-PUCCH-RepetitionsList SEQUENCE{n1, n2, n3, n4, n5, n6, n7, n8, n9, n10, n11, n12, n13, n14, n15, n16, …, nm}; the signaling or field carrying the number of repeated transmissions in the third signaling is expressed as: Msg4-Pucch-RepetitionNrofSlots indicator-n bit (n greater than or equal to 0); the value of this field {0…0, 0…1, …, 1…1} can indicate a specific number of repeated transmissions, corresponding to a specific value of the second configuration list.

Optionally, the signaling or field carrying the first configuration set in the second signaling is expressed as: numberOfMsg4-PUCCH-RepetitionsList SEQUENCE(SIZE(2n(n greater than or equal to 0)))OF NumberOfMsg4-PUCCH-Repetitions; the signaling or field carrying the number of repeated transmissions in the third signaling is expressed as: Msg4-Pucch-RepetitionNrofSlots indicator-n bit(n greater than or equal to 0); the value of this field {0…0, 0…1, …, 1…1} can indicate a specific number of repeated transmissions, corresponding to a specific value of the first configuration set.

In another embodiment, when the number of repeated transmissions is carried in multiple sub-signals, a second configuration list about the number of repeated transmissions can also be obtained from the second signaling of the common signaling, a second configuration set in the second configuration list can be obtained from the second signaling, and the number of repeated transmissions can be obtained from the second configuration set according to the third signaling of the common signaling. Among them, the signaling or field carrying the second configuration list in the second signaling is expressed as: numberOfMsg4-PUCCH-RepetitionsList SEQUENCE{n1, n2, n3, n4, n5, n6, n7, n8, n9, n10, n11, n12, n13, n14, n15, n16, …, nm}; the signaling or field carrying the second configuration set in the second signaling is expressed as: numberOfMsg4-PUCCH-RepetitionsList SEQUENCE{n1, n2, n3, n4, n5, n6, n7, n8, n9, n10, n11, n12, n13, n14, n15, n16, …, nm}. UENCE(SIZE(2n(n≥0)))OF NumberOfMsg4-PUCCH-Repetitions; The signaling or field carrying the number of repeated transmissions in the third signaling is expressed as: Msg4-Pucch-RepetitionNrofSlots indicator-n bit(n≥0); The value of this field {0…0, 0…1, …, 1…1} can indicate the specific number of repeated transmissions, corresponding to a specific value of the second configuration set of the second configuration list.

In another embodiment, when the number of repeated transmissions is carried in multiple sub-signals, the number of repeated transmissions can also be obtained from the first sub-signal of the common signaling. The method further comprises: obtaining a second configuration list about the number of repeated transmissions from the second signaling, obtaining a second configuration set in the second configuration list from the third signaling, and obtaining the number of repeated transmissions from the second configuration set according to the third signaling of the common signaling.

Among them, the signaling or field carrying the second configuration list in the second signaling is expressed as: numberOfMsg4-PUCCH-RepetitionsList SEQUENCE{n1, n2, n3, n4, n5, n6, n7, n8, n9, n10, n11, n12, n13, n14, n15, n16, …, nm}; the signaling or field carrying the second configuration set in the third signaling is expressed as: Msg4-Pucch-RepetitionNrofSlots Set indicator-n1bit (n1 is greater than or equal to 0) It should be noted that when n1 is equal to 0, it means that the second configuration set is not required and can be directly determined from the second configuration list; this word The segment includes n1 MSB bits, corresponding to the second configuration set of the second configuration list carried by the second signaling; the signaling or field carrying the number of repetitions in the third signaling is expressed as: Msg4-Pucch-RepetitionNrofSlots indicator-n2bit (n2 is greater than or equal to 0); this field includes n2 LSB bits, which together with the n1 MSB bits of Msg4-Pucch-RepetitionNrofSlots Set indicator indicate a specific value; the value of this field {0...0, 0...1, ..., 1...1} can indicate a specific number of repeated transmissions, corresponding to a specific value of the second configuration set of the second configuration list of the above-mentioned PUCCH repeated transmission number.

Alternatively, a second configuration list about the number of repeated transmissions is obtained from a fifth signaling of the user-specific signaling, or a first configuration set in the first configuration list is obtained from the fifth signaling, and the number of repeated transmissions is obtained from the second configuration list or the first configuration set according to a sixth signaling of the user-specific signaling, wherein the fifth signaling includes: random access response (RAR) information of the MSg2 and/or the Msg4, and the sixth signaling includes: at least one of the DCI of the scheduling Msg2, the DCI of the scheduling Msg3, the DCI of the scheduling Msg4, and the RAR uplink grant (RAR UL GRANT) information of the MSg2;

In the case where the number of repeated transmissions is obtained only based on public signaling, since the user-dedicated signaling may include multiple sub-signals, such as: DCI scheduling Msg2, DCI scheduling Msg3, DCI scheduling Msg4, MSg2 and Msg4; therefore, the number of repeated transmissions can be carried in one sub-signaling, or in multiple sub-signals.

In one embodiment, when the number of repeated transmissions is carried in a sub-signaling, the number of repeated transmissions may be obtained from the first configuration list according to the second field or the second mixed field of the fourth signaling of the user-specific signaling, wherein the second mixed field The field includes at least two second fields, preferably at least part of the bits in at least two second fields. The fourth signaling includes: DCI for scheduling Msg2, DCI for scheduling Msg3, DCI for scheduling Msg4, at least one item among MSg2 and Msg4, and the first configuration list is a configuration list for the number of repeated transmissions predetermined according to the protocol.

In a specific embodiment, when the fourth signaling is the DCI for scheduling Msg2, the DCI for scheduling Msg3, the DCI for scheduling Msg4, or the RAR UL GRANT information of MSg2, the second field is: Msg4-Pucch-RepetitionNrofSlots ENUMERATED{n1, n2, …, m}, where n1, n2, …, m indicates the specific number of repeated transmissions in the first configuration list.

In a specific embodiment, when the fourth signaling is the DCI for scheduling Msg2, the DCI for scheduling Msg3, the DCI for scheduling Msg4, or the RAR UL GRANT information of MSg2, the second field may be a field that does not exist in the original protocol, that is, a newly added field, for example: Msg4-Pucch-RepetitionNrofSlots indicator-n bit (n is greater than or equal to 0); the value of this field {0…0, 0…1, …, 1…1} may indicate the specific number of repeated transmissions in the first configuration list;

The second field may also be some bits of an existing field in the original protocol, wherein the values of the some bits {0...0, 0...1, ..., 1...1} may indicate a specific number of repeated transmissions in the first configuration list.

In a specific embodiment, when the fourth signaling is the DCI for scheduling Msg2, the DCI for scheduling Msg3, the DCI for scheduling Msg4, or the RAR UL GRANT information of MSg2, the first mixed field may be a combination of at least two of the above existing fields. At this time, the value of the second mixed field {0…0, 0…1, …, 1…1} is used to indicate the specific number of repeated transmissions in the first configuration list;

Alternatively, the second hybrid field may be a combination of at least one of the above existing fields and a newly added field. In this case, the value {0...0, 0...1, ..., 1...1} of the second hybrid field is used to indicate the specific number of repeated transmissions in the first configuration list.

It should be noted that the existing fields in the DCI scheduling Msg2 include but are not limited to: TB scaling field, LSBs of Single Frequency Network (LSBs of SFN) field and Reserved bits field.

The DCI for scheduling Msg3 is preferably DCI 0_0 that is scrambled by the temporary cell-radio network temporary identifier (Temporary Cell Radio Network Temporary Identifier, TC-RNTI) and the cyclic redundancy check (CRC), wherein the existing fields include but are not limited to the hybrid automatic repeat request process number (HARQ process number) field, the new data indicator field, the downlink assignment index field and the power control command for the physical uplink shared channel (TPC command for scheduled PUSCH) field.

The DCI scheduling Msg4 is preferably DCI 1_0 with CRC scrambled by TC-RNTI, in which the existing fields include but are not limited to HARQ process number field, Downlink assignment index field, TPC command for scheduled PUSCH field, PUCCH resource identifier (PUCCH resource indicator) field, New data indicator field and reserved bits field.

The existing fields in the RAR information of Msg2 include but are not limited to: Channel State Information request (CSI request) field, Frequency hopping flag field, PUCSH Frequency resource allocation (PUSCH frequency resource allocation) field, PUSCH time resource allocation (PUSCH time resource allocation) field, modulation and coding scheme (Modulation and coding scheme, MCS) field and TPC command for PUSCH field.

In another embodiment, when the number of repeated transmissions is carried in multiple sub-signals, a second configuration list about the number of repeated transmissions can be obtained from the fifth signaling of the user-specific signaling, or a first configuration set in the first configuration list can be obtained from the fifth signaling, and the number of repeated transmissions can be obtained from the second configuration list or the first configuration set according to the sixth signaling of the user-specific signaling. The fifth signaling includes: RAR information of MSg2 and/or the Msg4, and the sixth signaling includes: DCI for scheduling Msg2, DCI for scheduling Msg3, DCI for scheduling Msg4, and RAR UL GRANT information of MSg2.

Optionally, the signaling or field carrying the second configuration list in the fifth signaling is expressed as: numberOfMsg4-PUCCH-Repetitions ENUMERATED{n1, n2, n3, n4, n5, n6, n7, n8, n9, n10, n11, n12, n13, n14, n15, n16, …, nm}; the signaling or field carrying the number of repeated transmissions in the sixth signaling is expressed as: Msg4-Pucch-RepetitionNrofSlots indicator-n bit (n is greater than or equal to 0); the value of this field {0…0, 0…1, …, 1…1} can indicate a specific number of repeated transmissions, corresponding to a specific value of the second configuration list.

Optionally, the signaling or field carrying the first configuration set in the fifth signaling is expressed as: numberOfMsg4-PUCCH-RepetitionsList SEQUENCE(SIZE(2n(n greater than or equal to 0)))OF NumberOfMsg4-PUCCH-Repetitions; the signaling or field carrying the number of repeated transmissions in the sixth signaling is expressed as: Msg4-Pucch-RepetitionNrofSlots indicator-n bit(n greater than or equal to 0); the value of this field {0…0, 0…1, …, 1…1} can indicate a specific number of repeated transmissions, corresponding to a specific value of the first configuration set.

In another embodiment, when the number of repeated transmissions is carried in multiple sub-signals, a second configuration list about the number of repeated transmissions can also be obtained from the fifth signaling, a second configuration set in the second configuration list can be obtained from the fifth signaling, and the number of repeated transmissions can be obtained from the second configuration set according to the sixth signaling. Among them, the signaling or field carrying the second configuration list in the fifth signaling is expressed as: numberOfMsg4-PUCCH-Repetitions ENUMERATED{n1, n2, n3, n4, n5, n6, n7, n8, n9, n10, n11, n12, n13, n14, n15, n16, …, nm}; the signaling or field carrying the second configuration set in the fifth signaling is expressed as: numberOfMsg4-PUCCH-RepetitionsList SEQUE NCE(SIZE(2n(n≥0)))OF NumberOfMsg4-PUCCH-Repetitions; The signaling or field carrying the number of repeated transmissions in the sixth signaling is expressed as: Msg4-Pucch-RepetitionNrofSlots indicator-n bit(n≥0); The value of this field {0…0, 0…1, …, 1…1} can indicate the specific number of repeated transmissions, corresponding to a specific value of the second configuration set of the above-mentioned second configuration list.

In another embodiment, when the number of repeated transmissions is carried in multiple sub-signals, a second configuration list about the number of repeated transmissions can also be obtained from the fifth signaling, a second configuration set in the second configuration list can be obtained from the sixth signaling, and the number of repeated transmissions can be obtained from the second configuration set according to the sixth signaling of the common signaling. The signaling or field carrying the second configuration list in the fifth signaling is expressed as: numberOfMsg4-PUCCH-Repetitions ENUMERATED{n1, n2, n3, n4, n5, n6, n7, n8, n9, n10, n11, n12, n13, n14, n15, n16, ..., nm}; the signaling or field carrying the second configuration set in the sixth signaling is expressed as: Msg4-Pucch-RepetitionNrofSlots Set indicator-n1bit (n1 is greater than or equal to 0). It should be noted that when n1 is equal to 0, it means that the second configuration set is not required and can be determined directly from the second configuration list; this field includes n1 MSB bits, corresponding to the second configuration set of the second configuration list carried by the fifth signaling; the signaling or field carrying the number of repetitions in the sixth signaling is expressed as: Msg4-Pucch-RepetitionNrofSlots indicator-n2bit (n2 is greater than or equal to 0); this field includes n2 LSB bits, which together with the n1 MSB bits of Msg4-Pucch-RepetitionNrofSlots Set indicator indicate a specific value; the value of this field {0...0, 0...1,..., 1...1} can indicate a specific number of repeated transmissions, corresponding to a specific value of the second configuration set of the above-mentioned second configuration list.

Optionally, the number of repeated transmissions may also be obtained based on common signaling and user-specific signaling.

In a specific embodiment, the first configuration set in the first configuration list may be obtained from the public signaling, or the second configuration list regarding the number of repeated transmissions may be obtained from the public signaling, and the number of repeated transmissions may be obtained from the second configuration list or the first configuration set according to user-specific signaling. The first configuration list is a configuration list regarding the number of repeated transmissions predetermined according to a protocol.

In one embodiment, the first configuration set is carried by RRC signaling or SIB signaling in public signaling, and the number of repeated transmissions is carried by at least one of the DCI of scheduling Msg2, the DCI of scheduling Msg3, the DCI of scheduling Msg4 and the RAR UL GRANT information of MSg2 in user-specific signaling.

Among them, the signaling or field carrying the first configuration set may be represented by: numberOfMsg4-PUCCH-RepetitionsList SEQUENCE(SIZE(2n(n is greater than or equal to 0)))OF NumberOfMsg4-PUCCH-Repetitions;

The field carrying the number of repeated transmissions may be a third field or a third mixed field, wherein the third field may be a newly added field or part of the bits of an existing field of a sub-signaling regarding user-dedicated signaling in the original protocol, wherein the third mixed field is a combination of multiple third fields belonging to the same sub-signaling, and the existing fields include but are not limited to a preset number of MSB bits and LSB bits.

Among them, the newly added field is expressed as: Msg4-Pucch-RepetitionNrofSlots indicator-n bit (n is greater than or equal to 0); the value of this field {0...0, 0...1, ..., 1...1} can indicate the specific number of repeated transmissions.

The existing fields include but are not limited to:

The TB scaling field, LSBs of SFN field and Reserved bits field of the DCI belonging to the scheduling Msg2;

The HARQ process number field, New data indicator field, Downlink assignment index field and TPC command for scheduled PUSCH field of the DCI belonging to scheduling Msg3;

The HARQ process number field, Downlink assignment index field, TPC command for scheduled PUSCH field, PUCCH resource indicator, New data indicator field and reserved bits field of the DCI belonging to scheduling Msg4;

The CSI request field, Frequency hopping flag field, PUSCH frequency resource allocation field, PUSCH time resource allocation field, MCS field and TPC command for PUSCH field of the RAR UL GRANT information belonging to Msg2.

In another embodiment, the second configuration list is carried by RRC signaling or SIB signaling in public signaling, and the number of repeated transmissions is carried by at least one of the DCI of scheduling Msg2, the DCI of scheduling Msg3, the DCI of scheduling Msg4 and the RAR UL GRANT information of MSg2 in the user-specific signaling.

Among them, the signaling or field carrying the second configuration list can be expressed as: numberOfMsg4-PUCCH-RepetitionsList SEQUENCE{n1, n2, n3, n4, n5, n6, n7, n8, n9, n10, n11, n12, n13, n14, n15, n16, …, nm}.

The field carrying the number of repeated transmissions in the user-specific signaling may be the third field or the third mixed field mentioned above, which will not be described in detail here.

In another embodiment, the first configuration set is carried by MIB or public DCI in public signaling, and the number of repeated transmissions is carried by at least one of DCI of scheduling Msg2, DCI of scheduling Msg3, DCI of scheduling Msg4, and RAR UL GRANT information of MSg2 in user-specific signaling;

Among them, the field carrying the first configuration set can be a fourth field or a fourth mixed field, wherein the fourth field can be a newly added field or partial bits of an existing field of a sub-signaling regarding user-dedicated signaling in the original protocol, and the fourth mixed field is a combination of multiple fourth fields belonging to the same sub-signaling.

Among them, the newly added field can be expressed as: Msg4-Pucch-RepetitionNrofSlots Set indicator-n1bit (n1 is greater than or equal to 0). It should be noted that when n1 is equal to 0, it means that it does not need to go through the first configuration set and can be directly determined from the first configuration list; this field includes n1 MSB bits, corresponding to the first configuration set of the first configuration list.

The existing fields include but are not limited to:

The systemFrameNumber field, subCarrierSpacingCommon field, ssb-SubcarrierOffset field, dmrs-TypeA-Position field, pdcch-ConfigSIB1 field, cellBarred field, intraFreqReselection field, and spare field belong to the MIB.

The Frequency domain resource assignment field, Time domain resource assignment field, VRB-to-PRB mapping field, Modulation and coding scheme field, Reserved bits field, Short Messages Indicator field, Short Messages field, TB scaling field and TRS availability indication field belong to the public DCI.

The field carrying the number of repeated transmissions in the user-specific signaling may be a fifth field or a fifth mixed field, wherein: The fifth field may be a newly added field, or may be part of the bits of an existing field of a sub-signaling related to user-specific signaling in the original protocol, and the fifth mixed field is a combination of multiple fifth fields belonging to the same sub-signaling;

Among them, the newly added field can be expressed as: Msg4-Pucch-RepetitionNrofSlots indicator-n2bit (n2 is greater than or equal to 0); this field includes n2 LSB bits, which together with the n1 MSB bits of Msg4-Pucch-RepetitionNrofSlots Set indicator indicate a specific value; the value of this field {0...0, 0...1, ..., 1...1} can indicate a specific number of repeated transmissions, corresponding to a specific value of the above configuration set.

The existing fields include but are not limited to:

The HARQ process number field, Downlink assignment index field, TPC command for scheduled PUSCH field, PUCCH resource indicator field, New data indicator field and reserved bits field of the DCI belonging to scheduling Msg4;

In a specific embodiment, the second configuration list is also obtained from the public signaling, a second configuration set of the second configuration list is obtained from the public signaling or the user-specific signaling, and the number of repeated transmissions is obtained from the second configuration set according to the user-specific signaling.

In one embodiment, the second configuration list is carried by RRC signaling or SIB signaling in the common signaling, the second configuration set of the second configuration list is carried by RRC signaling or SIB signaling in the common signaling, and the number of repeated transmissions is carried by at least one of the DCI of the scheduling Msg2, the DCI of the scheduling Msg3, the DCI of the scheduling Msg4, and the RAR UL GRANT information of MSg2 in the user-specific signaling;

The signaling or field carrying the second configuration set may be represented by: numberOfMsg4-PUCCH-RepetitionsList SEQUENCE(SIZE(2n(n greater than or equal to 0)))OF NumberOfMsg4-PUCCH-Repetitions;

The signaling or field carrying the first configuration set in RRC signaling or SIB signaling in public signaling may be represented by: numberOfMsg4-PUCCH-RepetitionsList SEQUENCE(SIZE(2n(n is greater than or equal to 0)))OF NumberOfMsg4-PUCCH-Repetitions;

The field that carries the number of repeated transmissions may be the third field or the third mixed field mentioned above, which will not be described in detail here.

In another embodiment, the second configuration list is carried by RRC signaling or SIB signaling in the public signaling, the second configuration set of the second configuration list is carried by MIB signaling or public DCI in the public signaling, and the DCI of the scheduling Msg2, the DCI of the scheduling Msg3, the DCI of the scheduling Msg4 and the RAR UL GRANT of MSg2 in the user-specific signaling are used. At least one item of the information carries the number of repeated transmissions;

Among them, the field carrying the second configuration set can be the sixth field or the sixth mixed field, wherein the sixth field can be a newly added field or partial bits of an existing field of the sub-signaling of the user-dedicated signaling in the original protocol, and the sixth mixed field is a combination of multiple sixth fields belonging to the same sub-signaling.

Among them, the newly added field can be expressed as: Msg4-Pucch-RepetitionNrofSlots Set indicator-n1bit (n1 is greater than or equal to 0). It should be noted that when n1 is equal to 0, it means that the second configuration set is not required and can be directly determined from the first configuration list; this field includes n1 MSB bits, corresponding to the second configuration set of the second configuration list.

The existing fields include but are not limited to:

The field carrying the number of repeated transmissions in the user-specific signaling may be the fifth field or the fifth mixed field, which will not be described in detail here.

In another embodiment, the second configuration list is carried by RRC signaling or SIB signaling in the common signaling, the second configuration set of the second configuration list is carried by RAR or Msg4 of MSg2 in the user-specific signaling, and the number of repeated transmissions is carried by at least one of the DCI of scheduling Msg2, the DCI of scheduling Msg3, the DCI of scheduling Msg4, and the RAR UL GRANT information of MSg2 in the user-specific signaling;

The signaling or field carrying the second configuration set may be expressed as: numberOfMsg4-PUCCH-RepetitionsList SEQUENCE(SIZE(2n(n is greater than or equal to 0)))OF NumberOfMsg4-PUCCH-Repetitions;

In another embodiment, the second configuration list is carried by RRC signaling or SIB signaling in the common signaling, the second configuration set of the second configuration list is carried by at least one of the DCI of the scheduling Msg2, the DCI of the scheduling Msg3, the DCI of the scheduling Msg4, and the RAR UL GRANT information of MSg2 in the user-specific signaling, and the number of repeated transmissions is carried by at least one of the DCI of the scheduling Msg2, the DCI of the scheduling Msg3, the DCI of the scheduling Msg4, and the RAR UL GRANT information of MSg2 in the user-specific signaling;

The signaling or field carrying the second configuration set may be the sixth field or the sixth mixed field mentioned above, which will not be described in detail here;

The field carrying the number of repeated transmissions may be the fifth field or the fifth mixed field, which will not be described in detail here.

Referring to FIG. 2 , another embodiment of the present application further provides a method for repeated transmission of a Msg4 hybrid automatic repeat request confirmation, which is applied to a user terminal and includes:

Step S201, sending a user request signaling to a network side device, wherein the user request signaling carries first information of whether the user terminal supports repeated transmission of PUCCH and at least one of the repeated transmission times, and the user request signaling includes: Msg1 request and/or Msg3 request;

Step S202, when the user terminal supports repeated transmission of PUCCH, after receiving Msg4 sent by the network side device, repeatedly send Msg4 hybrid automatic repeat request confirmation to the network side device according to the number of repeated transmissions.

In another embodiment of the present application, a method for repeated transmission of Msg4 hybrid automatic repeat request confirmation applied to a user terminal is provided, wherein when the user terminal sends a user request signaling, the user terminal may carry first information of whether the user terminal supports repeated transmission of PUCCH and at least one of the number of repeated transmissions in the user request signaling, wherein the first information facilitates the network side device to promptly know whether the user terminal supports repeated transmission of PUCCH, and perform repeated reception or single reception of the Msg4 hybrid automatic repeat request confirmation according to the specific situation, so as to ensure that the network side device can receive the Msg4 hybrid automatic repeat request confirmation fed back by the user terminal when the user terminal repeatedly sends the Msg4 hybrid automatic repeat request confirmation, thereby ensuring the smooth completion of the random access process and improving the service quality of the communication network.

It should be noted that, when the user terminal supports repeated transmission of PUCCH, the number of repeated transmissions may be carried in the user request signaling; when the user terminal does not support repeated transmission of PUCCH, if the number of repeated transmissions of Msg4 hybrid automatic repeat request confirmation in the network indication signaling received by the user terminal is greater than 1, then after receiving Msg4, the user terminal will only transmit the Msg4 hybrid automatic repeat request confirmation once, or abandon the transmission of the Msg4 hybrid automatic repeat request confirmation.

Referring to FIG. 3 , another embodiment of the present application further provides a network side device, including:

The first processing module 301 is used to obtain the number of repeated transmissions of the PUCCH corresponding to the user terminal from the user request signaling and/or the network indication signaling, wherein the user request signaling includes: Msg1 request and/or Msg3 request, and the network indication signaling includes: common signaling and/or user-specific signaling;

The second processing module 302 is used for repeatedly receiving the hybrid automatic repeat request confirmation of Msg4 fed back by the user terminal according to the number of repeated transmissions after sending Msg4.

Optionally, the network side device as described above, the first processing module 301 includes:

A first processing unit, configured to obtain first information of whether the user terminal supports repeated transmission of the PUCCH from the Msg1 request or the Msg3 request;

The second processing unit is configured to obtain the number of repeated transmissions from the Msg1 request or the Msg3 request when the first information indicates that the user terminal supports repeated transmission of the PUCCH.

The third processing unit is used to obtain the first information whether the user terminal supports repeated transmission of PUCCH from the Msg1 request or the Msg3 request, and obtain the number of repeated transmissions according to the network indication signaling.

a fourth processing unit, configured to obtain the number of repeated transmissions from a first configuration list according to a first field or a first mixed field of a first signaling of the common signaling, where the first mixed field includes at least two of the first fields, and the first signaling includes: at least one of radio resource control RRC signaling, system information block SIB signaling, master information block MIB signaling, and common downlink control information DCI;

Alternatively, a fifth processing unit is configured to obtain a second configuration list about the number of repeated transmissions from a second signaling of the common signaling, or obtain a first configuration set in the first configuration list from the second signaling, and obtain the number of repeated transmissions from the second configuration list or the first configuration set according to a third signaling of the common signaling, wherein the second signaling includes: the RRC signaling and/or the SIB signaling, and the third signaling includes: the MIB signaling and/or the common DCI;

Alternatively, a sixth processing unit is used to obtain the second configuration list from the second signaling, obtain the second configuration set in the second configuration list from the first signaling, and obtain the number of repeated transmissions from the second configuration set according to the third signaling.

a seventh processing unit, configured to obtain the number of repeated transmissions from a first configuration list regarding the number of repeated transmissions according to a second field or a second mixed field in a fourth signaling of the user-specific signaling, wherein the second mixed field includes at least two of the second fields, and the fourth signaling includes: a DCI for scheduling Msg2, a DCI for scheduling Msg3, a DCI for scheduling Msg4, at least one of MSg2 and Msg4;

Alternatively, an eighth processing unit is configured to obtain a second configuration list about the number of repeated transmissions from a fifth signaling of the user-specific signaling, or to obtain a first configuration set in the first configuration list from the fifth signaling, and to obtain the number of repeated transmissions from the second configuration list or the first configuration set according to a sixth signaling of the user-specific signaling, wherein the fifth signaling includes: the RAR information of the MSg2 and/or the Msg4, and the sixth signaling includes: the DCI of the scheduling Msg2, the DCI of the scheduling Msg3, the DCI of the scheduling Msg4, and at least one item of the RAR UL GRANT information of the MSg2;

Alternatively, a ninth processing unit is configured to obtain the second configuration list from the fifth signaling, obtain the second configuration set in the second configuration list from the fourth signaling, and obtain the number of repeated transmissions from the second configuration set according to the sixth signaling.

a tenth processing unit, configured to obtain, from the common signaling, a first configuration set in the first configuration list regarding the number of repeated transmissions or a second configuration list regarding the number of repeated transmissions, and, according to the user-specific signaling, obtain a first configuration set in the first configuration list regarding the number of repeated transmissions or a second configuration list regarding the number of repeated transmissions; The number of repeated transmissions is obtained from the first configuration set or the first configuration list, wherein the public signaling includes: at least one of RRC signaling, SIB signaling, MIB signaling, and public DCI, and the user-specific signaling includes: at least one of DCI for scheduling Msg2, DCI for scheduling Msg3, DCI for scheduling Msg4, MSg2, and Msg4;

Alternatively, the eleventh processing unit is used to obtain the second configuration list from the public signaling, obtain the second configuration set of the second configuration list from the public signaling or the user-dedicated signaling, and obtain the number of repeated transmissions from the second configuration set according to the user-dedicated signaling.

The embodiment of the network side device of the present application is a device corresponding to the embodiment of the repeated transmission method of the Msg4 hybrid automatic repeat request confirmation applied to the network side device. All implementation means in the above-mentioned method embodiment are applicable to the embodiment of the device and can achieve the same technical effect.

Referring to FIG. 4 , another embodiment of the present application further provides a user terminal, including:

The third processing module 401 is used to send a user request signaling to the network side device, wherein the user request signaling carries the first information of whether the user terminal supports repeated transmission of PUCCH and/or the number of repeated transmissions, and the user request signaling includes: Msg1 request and/or Msg3 request;

The fourth processing module 402 is used to repeatedly send a hybrid automatic repeat request confirmation Msg4 to the network side device according to the number of repeated transmissions after receiving Msg4 sent by the network side device when the user terminal supports repeated transmission of PUCCH.

The embodiment of the user terminal of the present application is a user terminal corresponding to the embodiment of the repeated transmission method of the Msg4 hybrid automatic repeat request confirmation applied to the user terminal. All the implementation means in the above-mentioned method embodiment are applicable to the embodiment of the user terminal and can achieve the same technical effect.

Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this disclosure.

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

In the embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present disclosure may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present disclosure, or the part that contributes to the prior art or the part of the technical solution, can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present disclosure. The aforementioned storage medium includes: various media that can store program codes, such as USB flash drives, mobile hard disks, ROM, RAM, magnetic disks or optical disks.

Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiments can be realized by controlling the relevant hardware through a computer program, and the program can be stored in a computer-readable storage medium, and when the program is executed, it can include the processes of the embodiments of the above-mentioned methods. The storage medium can be a disk, an optical disk, a read-only memory (ROM) or a random access memory (RAM), etc.

In addition, the present application may repeat reference numerals and/or letters in different examples. This repetition is for the purpose of simplicity and clarity, and does not in itself indicate the relationship between the various embodiments and/or settings discussed.

It should also be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to include Cover non-exclusive inclusion.

The above is a preferred embodiment of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles described in the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

A repeated transmission method of a Msg4 hybrid automatic repeat request confirmation, applied to a network side device, comprising:

Acquire the number of repeated transmissions of the physical uplink control channel PUCCH corresponding to the user terminal according to the user request signaling and/or the network indication signaling, wherein the user request signaling includes: Msg1 request and/or Msg3 request, and the network indication signaling includes: common signaling and/or user-specific signaling;

After sending Msg4, the hybrid automatic repeat request confirmation of Msg4 fed back by the user terminal is repeatedly received according to the number of repeated transmissions.
The repeated transmission method according to claim 1, wherein obtaining the number of repeated transmissions according to the user request signaling comprises:

Acquire first information of whether the user terminal supports repeated transmission of the PUCCH from the Msg1 request or the Msg3 request;

When the first information indicates that the user terminal supports repeated transmission of the PUCCH, the number of repeated transmissions is obtained from the Msg1 request or the Msg3 request.
The repeated transmission method according to claim 1, wherein, according to the user request signaling and the network indication signaling, obtaining the number of repeated transmissions comprises:

First information on whether the user terminal supports repeated transmission of the PUCCH is obtained from the Msg1 request or the Msg3 request, and the number of repeated transmissions is obtained according to the network indication signaling.
The repeated transmission method according to claim 1 or 3, wherein obtaining the number of repeated transmissions according to the common signaling in the network indication signaling comprises:

Acquire the number of repeated transmissions from a first configuration list according to a first field or a first mixed field of a first signaling of the common signaling, where the first mixed field includes at least two of the first fields, and the first signaling includes: at least one of radio resource control RRC signaling, system information block SIB signaling, master information block MIB signaling, and common downlink control information DCI;

Alternatively, a second configuration list about the number of repeated transmissions is obtained from a second signaling of the common signaling, or a first configuration set in the first configuration list is obtained from the second signaling, and the number of repeated transmissions is obtained from the second configuration list or the first configuration set according to a third signaling of the common signaling, where the second signaling includes: the RRC signaling and/or the SIB signaling, and the third signaling includes: the MIB signaling and/or the common DCI;

Alternatively, the second configuration list is obtained from the second signaling, a second configuration set in the second configuration list is obtained from the first signaling, and the number of repeated transmissions is obtained from the second configuration set according to the third signaling.
The repeated transmission method according to claim 1 or 3, wherein obtaining the number of repeated transmissions according to the user-specific signaling in the network indication signaling comprises:

According to the second field or the second mixed field in the fourth signaling of the user-specific signaling, from the information about the repeated transmission The number of repeated transmissions is obtained from a first configuration list of the number of transmissions, the second mixed field includes at least two of the second fields, and the fourth signaling includes: a DCI for scheduling Msg2, a DCI for scheduling Msg3, a DCI for scheduling Msg4, at least one of MSg2 and Msg4;

Alternatively, a second configuration list regarding the number of repeated transmissions is obtained from a fifth signaling of the user-specific signaling, or a first configuration set in the first configuration list is obtained from the fifth signaling, and the number of repeated transmissions is obtained from the second configuration list or the first configuration set according to a sixth signaling of the user-specific signaling, wherein the fifth signaling includes: the RAR information of the MSg2 and/or the Msg4, and the sixth signaling includes: the DCI of the scheduling Msg2, the DCI of the scheduling Msg3, the DCI of the scheduling Msg4, and at least one item of the RAR UL GRANT information of the MSg2;

Alternatively, the second configuration list is obtained from the fifth signaling, the second configuration set in the second configuration list is obtained from the fourth signaling, and the number of repeated transmissions is obtained from the second configuration set according to the sixth signaling.
The repeated transmission method according to claim 1 or 3, wherein obtaining the number of repeated transmissions according to the common signaling and the user-specific signaling in the network indication signaling comprises:

Acquire a first configuration set in a first configuration list about the number of repeated transmissions or a second configuration list about the number of repeated transmissions from the common signaling, and acquire the number of repeated transmissions from the first configuration set or the first configuration list according to the user-specific signaling, wherein the common signaling includes: at least one of RRC signaling, SIB signaling, MIB signaling, and common DCI, and the user-specific signaling includes: at least one of DCI for scheduling Msg2, DCI for scheduling Msg3, DCI for scheduling Msg4, MSg2, and Msg4;

Alternatively, the second configuration list is obtained from the common signaling, a second configuration set of the second configuration list is obtained from the common signaling or the user-specific signaling, and the number of repeated transmissions is obtained from the second configuration set according to the user-specific signaling.
A repeated transmission method of a Msg4 hybrid automatic repeat request confirmation, applied to a user terminal, comprising:

Sending a user request signaling to a network side device, wherein the user request signaling carries first information of whether the user terminal supports repeated transmission of PUCCH and at least one of the number of repeated transmissions, and the user request signaling includes: a Msg1 request and/or a Msg3 request;

In the case that the user terminal supports repeated transmission of PUCCH, after receiving Msg4 sent by the network side device, Msg4 hybrid automatic repeat request confirmation is repeatedly sent to the network side device according to the number of repeated transmissions.
A network side device, comprising:

A first processing module, configured to obtain the number of repeated transmissions of the PUCCH corresponding to the user terminal from the user request signaling and/or the network indication signaling, wherein the user request signaling includes: Msg1 request and/or Msg3 request, and the network indication signaling includes: common signaling and/or user-specific signaling;

The second processing module is used to repeatedly receive the Msg4 hybrid automatic repeat request confirmation fed back by the user terminal according to the number of repeated transmissions after sending the Msg4.
A user terminal, comprising:

A third processing module is used to send a user request signaling to a network side device, wherein the user request signaling carries first information on whether the user terminal supports repeated transmission of PUCCH and/or the number of repeated transmissions, and the user request signaling includes: Msg1 request and/or Msg3 request;

The fourth processing module is used to repeatedly send a hybrid automatic repeat request confirmation Msg4 to the network side device according to the number of repeated transmissions after receiving the Msg4 sent by the network side device when the user terminal supports repeated transmission of PUCCH.
An electronic device comprises a processor, a memory and a computer program stored in the memory and executable on the processor, wherein the computer program, when executed by the processor, implements the steps of the repeated transmission method of the Msg4 hybrid automatic repeat request confirmation as described in any one of claims 1 to 6, or implements the steps of the repeated transmission method of the Msg4 hybrid automatic repeat request confirmation as described in claim 7.
A computer-readable storage medium storing a computer program, wherein when the computer program is executed by a processor, the computer program implements the steps of the repeated transmission method of the Msg4 hybrid automatic repeat request confirmation as described in any one of claims 1 to 6, or implements the steps of the repeated transmission method of the Msg4 hybrid automatic repeat request confirmation as described in claim 7.
A chip, comprising a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement the steps of the repeated transmission method of the Msg4 hybrid automatic repeat request confirmation as described in any one of claims 1 to 6, or to implement the steps of the repeated transmission method of the Msg4 hybrid automatic repeat request confirmation as described in claim 7.
A computer program product, wherein the program product is stored in a non-volatile storage medium, and the program product is executed by at least one processor to implement the steps of the repeated transmission method of the Msg4 hybrid automatic repeat request confirmation as described in any one of claims 1 to 6, or the steps of the repeated transmission method of the Msg4 hybrid automatic repeat request confirmation as described in claim 7.