Wireless communication method, terminal device and network device

Abstract

Provided are a wireless communication method, a terminal device and a network device, the method comprising: before configuring an exclusive PUCCH resource of the terminal device, the terminal device sending a first PUCCH based on repeated transmission to the network device. In the embodiment of the invention, before the exclusive PUCCH resource is configured, the terminal equipment can send the first PUCCH repeated transmission based on repeated transmission. Compared with a transmitted PUCCH transmission scheme, the terminal equipment only supports single PUCCH transmission before the exclusive PUCCH resource is configured, so that the coverage performance of the system is improved.

Description

Wireless communication method, terminal device and network device Technical Field

[0001] The present application relates to the field of communication technology, and more specifically, to a method, terminal device and network device for wireless communication. Background Art

[0002] In communication scenarios with limited coverage performance, such as non-terrestrial network (NTN) systems, a single physical uplink control channel (PUCCH) transmission cannot meet the coverage requirements. For example, during the initial access phase, if the PUCCH carrying message 4 hybrid automatic repeat request-acknowledgement (HARQ-ACK) information cannot be successfully sent, the terminal device will not be able to access the network. For another example, if the HARQ-ACK information cannot be fed back for the dedicated PUCCH resource configuration, the dedicated PUCCH resource configuration will fail.

[0003] Summary of the Invention

[0004] The present application provides a wireless communication method, terminal device, and network device. The following introduces various aspects of the present application.

[0005] In a first aspect, a wireless communication method is provided, comprising: before configuring a dedicated PUCCH resource of a terminal device, the terminal device sends a first PUCCH based on repeated transmission to a network device.

[0006] In a second aspect, a wireless communication method is provided, comprising: before configuring a dedicated PUCCH resource of a terminal device, a network device receives a first PUCCH based on repeated transmission sent by the terminal device.

[0007] According to a third aspect, a terminal device is provided, comprising: before configuring an exclusive PUCCH resource of the terminal device, a sending unit is used to send a first PUCCH based on repeated transmission to a network device.

[0008] In a fourth aspect, a network device is provided, comprising: before configuring a dedicated PUCCH resource of a terminal device, a receiving unit is used to receive a first PUCCH based on repeated transmission sent by the terminal device.

[0009] In a fifth aspect, a terminal device is provided, comprising a processor, a memory, and a communication interface, wherein the memory is used to store one or more computer programs, and the processor is used to call the computer program in the memory so that the terminal device executes part or all of the steps in the method of the first aspect.

[0010] In a sixth aspect, a network device is provided, comprising a processor, a memory, and a transceiver, wherein the memory is used to store one or more computer programs, and the processor is used to call the computer program in the memory so that the network device executes part or all of the steps in the method of the second aspect.

[0011] In a seventh aspect, an embodiment of the present application provides a communication system, which includes the above-mentioned terminal device and / or network device. In another possible design, the system may also include other devices that interact with the terminal device or network device in the solution provided in the embodiment of the present application.

[0012] In an eighth aspect, an embodiment of the present application provides a computer-readable storage medium, which stores a computer program, and the computer program enables a communication device (for example, a terminal device or a network device) to execute part or all of the steps in the methods of the above aspects.

[0013] In a ninth aspect, embodiments of the present application provide a computer program product, wherein the computer program product includes a non-transitory computer-readable storage medium storing a computer program, wherein the computer program is operable to cause a communication device (e.g., a terminal device or a network device) to perform some or all of the steps of the methods described in each of the above aspects. In some implementations, the computer program product can be a software installation package.

[0014] In the tenth aspect, an embodiment of the present application provides a chip, which includes a memory and a processor. The processor can call and run a computer program from the memory to implement some or all of the steps described in the methods of the above aspects.

[0015] In an embodiment of the present application, before configuring dedicated PUCCH resources, the terminal device can send a first PUCCH repetition based on repeated transmission. Compared with the PUCCH transmission scheme of transmission, the terminal device only supports a single PUCCH transmission before configuring dedicated PUCCH resources, which helps to improve system coverage performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] FIG1 is a wireless communication system 100 used in an embodiment of the present application.

[0017] FIG2 is a flow chart of a wireless communication method according to an embodiment of the present application.

[0018] FIG3 is a flow chart of a wireless communication method provided in another embodiment of the present application.

[0019] FIG4 is a flow chart of a wireless communication method provided in another embodiment of the present application.

[0020] FIG5 is a flow chart of a wireless communication method provided in another embodiment of the present application.

[0021] FIG6 is a flowchart of a wireless communication method provided in another embodiment of the present application.

[0022] FIG7 is a flow chart of a wireless communication method provided in another embodiment of the present application.

[0023] FIG8 is a schematic diagram of a terminal device according to an embodiment of the present application.

[0024] FIG9 is a schematic diagram of a network device according to an embodiment of the present application.

[0025] FIG10 is a schematic structural diagram of a communication device according to an embodiment of the present application. DETAILED DESCRIPTION

[0026] The technical solution in this application will be described below with reference to the accompanying drawings.

[0027] Figure 1 illustrates a wireless communication system 100 used in an embodiment of the present application. The wireless communication system 100 may include a network device 110 and a terminal device 120. The network device 110 may be a device that communicates with the terminal device 120. The network device 110 may provide communication coverage for a specific geographic area and may communicate with the terminal device 120 within the coverage area.

[0028] FIG1 exemplarily shows a network device and two terminals. Optionally, the wireless communication system 100 may include multiple network devices and each network device may include other numbers of terminal devices within its coverage area, which is not limited in the embodiments of the present application.

[0029] Optionally, the wireless communication system 100 may further include other network entities such as a network controller and a mobility management entity, which is not limited in the embodiment of the present application.

[0030] It should be understood that the technical solutions of the embodiments of the present application can be applied to various communication systems, such as: fifth generation (5G) system or new radio (NR), long term evolution (LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (TDD), etc. The technical solutions provided in this application can also be applied to future communication systems, such as the sixth generation mobile communication system, satellite communication system, etc.

[0031] The terminal device in the embodiments of the present application may also be referred to as user equipment (UE), access terminal, user unit, user station, mobile station, mobile station (MS), mobile terminal (MT), remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device. The terminal device in the embodiments of the present application may refer to a device that provides voice and / or data connectivity to a user and can be used to connect people, objects and machines, such as a handheld device with wireless connection function, a vehicle-mounted device, etc. The terminal device in the embodiments of the present application can be a mobile phone, a tablet computer, a laptop computer, a PDA, a mobile internet device (MID), a wearable device, a virtual reality (VR) device, an augmented reality (AR) device, a wireless terminal in industrial control, a wireless terminal in self-driving, a wireless terminal in remote medical surgery, a wireless terminal in a smart grid, a wireless terminal in transportation safety, a wireless terminal in a smart city, a wireless terminal in a smart home, etc. Optionally, the UE can be used to act as a base station. For example, the UE can act as a scheduling entity that provides sidelink signals between UEs in V2X or D2D, etc. For example, a cellular phone and a car communicate with each other using sidelink signals. The cellular phone and smart home devices communicate without relaying the communication signal through the base station.

[0032] The network device in the embodiments of the present application may be a device for communicating with a terminal device, and may also be referred to as an access network device or a radio access network device. For example, the network device may be a base station. The network device in the embodiments of the present application may refer to a radio access network (RAN) node (or device) that connects a terminal device to a wireless network. A base station can broadly cover various names as follows, or be replaced with the following names, such as: NodeB, evolved NodeB (eNB), next generation NodeB (gNB), relay station, access point, transmission point (TRP), transmission point (TP), master station MeNB, secondary station SeNB, multi-standard radio (MSR) node, home base station, network controller, access node, wireless node, access point (AP), transmission node, transceiver node, baseband unit (BBU), remote radio unit (RRU), active antenna unit (AAU), remote radio head (RRH), central unit (CU), distributed unit (DU), positioning node, etc. A base station can be a macro base station, a micro base station, a relay node, a donor node or the like, or a combination thereof. A base station can also refer to a communication module, modem or chip used to be set in the aforementioned device or apparatus. The base station can also be a mobile switching center and a device that performs base station functions in device-to-device D2D, vehicle-to-everything (V2X), and machine-to-machine (M2M) communications, a network-side device in a 6G network, or a device that performs base station functions in future communication systems. The base station can support networks with the same or different access technologies. The embodiments of this application do not limit the specific technology and specific device form used by the network equipment.

[0033] Base stations can be fixed or mobile. For example, a helicopter or drone can be configured to act as a mobile base station, and one or more cells can move based on the location of the mobile base station. In other examples, a helicopter or drone can be configured to act as a device that communicates with another base station.

[0034] In some deployments, the network device in the embodiments of the present application may refer to a CU or a DU, or the network device may include a CU and a DU. The gNB may also include an AAU.

[0035] The network equipment and terminal devices can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on the water; they can also be deployed in the air on aircraft, balloons, and satellites. The embodiments of this application do not limit the scenarios in which the network equipment and terminal devices are located.

[0036] It should be understood that all or part of the functions of the communication device in this application can also be implemented through software functions running on hardware, or through virtualization functions instantiated on a platform (such as a cloud platform).

[0037] A terminal device can access a cell based on a random access procedure. The random access procedure typically involves the terminal device sending a random access request to a network device and receiving a random access response from the network device. After receiving the random access response, the terminal device sends Message 3 (Msg3) to the network device and receives Message 4 (Msg4) from the network device for contention resolution.

[0038] When sending Msg3, the terminal device can use Msg3 PUSCH repeated transmission (or Msg3 repeated transmission). Whether the current random access process uses Msg3 repeated transmission can be determined based on the following methods:

[0039] If the bandwidth part (BWP) used for the random access procedure is configured with both random access resource sets indicating Msg3 retransmission and random access resource sets not indicating Msg3 retransmission, and the RSRP of the downlink path loss reference signal is less than the threshold value rsrp-ThresholdMsg3 configured by the network; or if the BWP used for the random access procedure is only configured with a random access resource set indicating Msg3 retransmission, it is assumed that Msg3 retransmission is applied to the current random access procedure.

[0040] If the terminal device selects a random access resource indicating repeated transmission of Msg3 for random access, it can be considered that the terminal device implicitly requests repeated transmission of Msg3; otherwise, it is assumed that repeated transmission of Msg3 is not applied to the current random access process.

[0041] The number of repetitions of Msg3 retransmission can be determined by configuration. For example, the terminal device can be configured with a set of PUSCH (i.e., Msg3) repetitions (numberOfMsg3-RepetitionsList) scheduled by a random access response (RAR) uplink grant or a temporary cell-radio network temporary identifier (TC-RNTI) scrambled cyclic redundancy check (CRC) downlink control information (DCI) 0_0 in the public parameters of the uplink BWP. If the terminal device requests repeated transmission of Msg3, the terminal device sends the physical uplink shared channel (PUSCH) on K time slots, where K is further indicated by the 2 most significant bits (MSBs) of the RAR uplink grant or the modulation and coding scheme (MCS) field in DCI 0_0 from the 4 candidate values ​​provided by numberOfMsg3-RepetitionsList; if numberOfMsg3-RepetitionsList is not configured, it is indicated from {1, 2, 3, 4}, as shown in Table 1.

[0042] Table 1 The 2 MSBs of the MCS information field and the number of repetitions of Msg3 The mapping relationship

[0043]

[0044] After the terminal device requests repeated transmission of Msg3, it reinterprets the MCS field. The terminal device then determines the MCS for PUSCH transmission from the eight candidate values ​​provided by the higher-layer parameter mcs-Msg3Repetition using the two least significant bits (LSBs) of the MCS field in the RAR uplink grant or the three LSBs of the MCS field in DCI 0_0. If mcs-Msg3Repetition is not configured, the MCS is determined from the default set of MCS candidate values, as shown in Tables 2 and 3.

[0045] Table 2: 2 LSBs of the MCS information field in the RAR uplink grant to the MCS index I MCS Mapping

[0046]

[0047] Table 3 3 LSBs of the MCS information field in DCI 0_0 of the TC-RNTI scrambled CRC to MCS index I MCS Mapping

[0048]

[0049] Repeated Msg3 transmissions can improve the uplink coverage of Msg3 PUSCH. Compared to PUSCH, PUCCH typically uses a single transmission before a terminal device is configured with dedicated PUCCH resources. In coverage-constrained communication scenarios, such as NTN systems, a single PUCCH transmission cannot meet coverage requirements. For example, during the initial access phase, failure to successfully transmit the PUCCH carrying Msg4 HARQ-ACK information will result in the terminal device being unable to access the network. Furthermore, failure to provide HARQ-ACK information for dedicated PUCCH resource configuration will result in failure to configure the dedicated PUCCH resource.

[0050] Therefore, to address the above issues, the embodiment of the present application proposes a solution that supports repeated PUCCH transmission before configuring dedicated PUCCH resources to improve system coverage performance.

[0051] Figure 2 is a flow chart of a wireless communication method provided by an embodiment of the present application. The method of Figure 2 can be executed by a terminal device and a network device, which can be any type of terminal device and network device mentioned above.

[0052] Referring to FIG. 2 , in step S210 , before configuring the dedicated PUCCH resources of the terminal device, the terminal device sends a first PUCCH based on repeated transmission to the network device.

[0053] In some implementations, if the terminal device has not established an RRC connection, it belongs to "before configuring the terminal device's dedicated PUCCH resources."

[0054] In some implementations, if the terminal device is in a random access process, it belongs to "before configuring the terminal device's dedicated PUCCH resources."

[0055] In some implementations, if the terminal device receives configuration information of a dedicated PUCCH resource but has not yet provided feedback on the configuration information, it falls under "before configuring the dedicated PUCCH resource of the terminal device."

[0056] In some implementations, the first PUCCH may include a PUCCH during a random access process. In this case, the repeated transmission of the first PUCCH may also be referred to as a first repeated transmission. The PUCCH during a random access process may include, for example, a PUCCH for Msg4 HARQ-ACK feedback.

[0057] In some other implementations, the first PUCCH may include a PUCCH after Msg4 and before the dedicated PUCCH resource configuration. In this case, the repeated transmission of the first PUCCH may also be referred to as a second repeated transmission. The PUCCH after Msg4 and before the dedicated PUCCH resource configuration may, for example, include a PUCCH for carrying HARQ-ACK information fed back by the terminal device regarding the dedicated PUCCH resource configuration.

[0058] In some implementations, the first PUCCH may include a PUCCH indicated by DCI 1_0 using TC-RNTI scrambled CRC, for example, a PUCCH for feeding back Msg4 HARQ-ACK, or a PUCCH in the initial access phase.

[0059] It should be noted that in the embodiments of the present application, if not limited, the PUCCH repeated transmission involved can be understood as including the PUCCH repeated transmission before the dedicated PUCCH resource configuration.

[0060] In some implementations, before executing step S210, the terminal device may send first information to the network device. The first information may be information related to repeated PUCCH transmission. The first information may be, for example, carried in Msg1 and / or Msg3. Of course, the first information may also be information transmitted separately, which is not limited in this embodiment of the present application.

[0061] In an embodiment of the present application, a terminal device may indicate to a network device information related to PUCCH retransmissions through first information, thereby helping the network device to schedule PUCCH retransmissions based on the first information, thereby improving the rationality of PUCCH retransmission scheduling. Two possible types of first information are described below in conjunction with Embodiments 1 and 2.

[0062] Embodiment 1: The first information is used to request repeated transmission of the first PUCCH

[0063] In the embodiment of the present application, the first information may be explicit information or implicit information. That is, the terminal device may explicitly send a request for PUCCH retransmission to the network device, or may implicitly send a request for PUCCH retransmission to the network device.

[0064] Taking the first information as implicit information as an example, in some implementations, the terminal device may implicitly request PUCCH repeated transmission by initiating a random access procedure on a specific random access resource (also referred to as a "first random access resource"). In other words, the first random access resource may correspond to the PUCCH repeated transmission. Accordingly, the terminal device may send the first information to the network device, including: the terminal device initiating a random access procedure to the network device via the first random access resource. In this case, the first random access resource is used to carry the first information, or in other words, the first random access resource is used to implicitly carry the first information.

[0065] On the contrary, assuming that other random access resources (other random access resources except the first random access resource) do not correspond to PUCCH repeated transmission, or in other words, other random access resources are not used to carry the first information. When the terminal device initiates a random access process through other random access resources, it can indicate that the terminal device does not request PUCCH repeated transmission.

[0066] In some implementations, the first random access resource may include one or more of a specified random access channel (PRACH) format, a specified PRACH preamble, and a specified random access occasion (RO). Of course, the first random access resource may also include any other configurable random access resource, which is not limited in this embodiment of the present application.

[0067] It should be noted that, in the embodiment of the present application, the above-mentioned first random access resource can be configured by a network device. Of course, the above-mentioned first random access resource can also be pre-configured or predefined by a protocol, and the embodiment of the present application does not limit this.

[0068] Taking the first information as display information as an example, in some implementations, the first information can be carried in Msg3. That is, the terminal device sending the first information to the network device includes: the terminal device sending Msg3 to the network device, where Msg3 includes the first information. Of course, in the embodiment of the present application, the first information can also be carried in other messages, and the embodiment of the present application is not limited to this.

[0069] In some implementations, the first information may be carried in one of the following in Msg3: a medium access control control element (MAC CE), a common control channel (CCCH), and a radio resource control (RRC) signaling.

[0070] Taking the first information carried in the MAC CE as an example, the payload in the MAC CE can directly carry the bit corresponding to the first information to indicate that the terminal device requests PUCCH repeated transmission. For example, 1 bit in the payload of the first MAC CE can be used to request PUCCH repeated transmission. When the bit is set to 1, it indicates that the terminal device requests PUCCH repeated transmission. Conversely, when the bit is set to 0, it indicates that the terminal device does not request PUCCH repeated transmission. Of course, in the embodiment of the present application, when the bit is set to 1, it can indicate that the terminal device does not request PUCCH repeated transmission. Conversely, when the bit is set to 0, it can indicate that the terminal device requests PUCCH repeated transmission.

[0071] Taking the first information carried in a MAC CE as an example, the MAC CE may correspond to the first information to indicate that the terminal device requests PUCCH repeated transmission. For example, when the terminal device carries the second MAC CE via Msg3, it indicates that the terminal device requests PUCCH repeated transmission. Conversely, if the second MAC CE is not carried in Msg3, it may indicate that the terminal device does not request PUCCH repeated transmission.

[0072] For another example, when the terminal device carries the second MAC CE via Msg3, it indicates that the terminal device does not request repeated PUCCH transmission. On the contrary, if the Msg3 does not carry the second MAC CE, it may indicate that the terminal device requests repeated PUCCH transmission.

[0073] In the embodiment of the present application, the second MAC CE may only carry a logical channel identity (LCID), and in this case, the payload size of the MAC CE may be 0. Of course, in the embodiment of the present application, the payload size of the second MAC CE may also not be 0.

[0074] Taking the first information carried in MAC CE as an example, the LCID of MAC CE can correspond to the first information to indicate that the terminal device requests PUCCH repeated transmission. For example, the third MAC CE and the fourth MAC CE correspond to LCID3 and LCID4 respectively, where LCID3 can indicate a request for PUCCH repeated transmission, and LCID4 can indicate no request for PUCCH repeated transmission. At this time, when the terminal device transmits the third MAC CE in Msg3, it indicates that the terminal device requests PUCCH repeated transmission. Conversely, when the terminal device transmits the fourth MAC CE in Msg3, it indicates that the terminal device does not request PUCCH repeated transmission.

[0075] Of course, in an embodiment of the present application, the LCID corresponding to the first information can also be used to indicate whether the terminal device requests PUCCH repeated transmission. For example, when the fifth MAC CE carries LCID5, the terminal device can be instructed to request PUCCH repeated transmission. On the contrary, when the fifth MAC CE carries other LCIDs, the terminal device can be instructed not to request PUCCH repeated transmission. For another example, when the fifth MAC CE carries LCID5, the terminal device can be instructed not to request PUCCH repeated transmission. On the contrary, when the fifth MAC CE carries other LCIDs, the terminal device can be instructed to request PUCCH repeated transmission.

[0076] In the embodiment of the present application, the LCID corresponding to the first information (i.e., LCID5) can be predefined by the protocol, or preconfigured or configured by the network device, and the embodiment of the present application does not limit this. In addition, the LCID corresponding to the first information can reuse the LCID specified in the existing protocol, or it can be a newly introduced LCID in the future communication protocol, wherein the newly introduced LCID can be an LCID specifically used to indicate the first information.

[0077] As described above, the first information may also be carried in RRC signaling. In some implementations, a reserved bit field in the RRC signaling may be used to indicate whether the terminal device requests repeated PUCCH transmission. Of course, in an embodiment of the present application, other bit fields of the RRC signaling may also be reused to indicate whether the terminal device requests repeated PUCCH transmission.

[0078] As described above, the first information can also be carried in the CCCH. In some implementations, the first CCCH and / or the second CCCH (i.e., CCCH1) corresponding to the first information can be introduced, wherein the first CCCH can correspond to a different LCID than the CCCH in the current communication system, and the second CCCH can correspond to a different LCID than the CCCH in the current communication system. If the CCCH SDU transmitted by the terminal device in Msg3 is the service data unit (SDU) corresponding to the first CCCH and / or the second CCCH, the terminal device is instructed to request repeated transmission of the PUCCH. On the contrary, if the CCCH SDU transmitted by the terminal device in Msg3 is the SDU corresponding to the CCCH supported in the current communication system, the terminal device is instructed not to request repeated transmission of the PUCCH.

[0079] It should be noted that, in the embodiment of the present application, the first CCCH and the second CCCH may correspond to different bit sizes. For example, the first CCCH may correspond to 48 bits. For another example, the second CCCH may correspond to 64 bits.

[0080] In other implementations, if the CCCH SDU transmitted by the terminal device in Msg3 is the SDU corresponding to the first CCCH, the terminal device is instructed not to request PUCCH repeated transmission. Conversely, if the CCCH SDU transmitted by the terminal device in Msg3 is the SDU corresponding to the CCCH supported by the current communication system, the terminal device is instructed to request PUCCH repeated transmission.

[0081] Of course, in the embodiment of the present application, a second CCCH and a third CCCH may be introduced, wherein the second CCCH and the third CCCH may correspond to different LCIDs than the CCCH in the current communication system. Accordingly, if the CCCH SDU transmitted by the terminal device in Msg3 is the SDU corresponding to the second CCCH, it indicates that the terminal device requests PUCCH repeated transmission. Otherwise, if the CCCH SDU transmitted by the terminal device in Msg3 is the SDU corresponding to the third CCCH, it indicates that the terminal device does not request PUCCH repeated transmission.

[0082] Example 2: The first information is used to indicate the PUCCH retransmission capability of the terminal device

[0083] The PUCCH retransmission capability of the terminal device may include whether the terminal device has the PUCCH retransmission capability and / or whether the terminal device does not have the PUCCH retransmission capability. In other words, the first information may be used to indicate whether the terminal device supports PUCCH retransmission.

[0084] In the embodiment of the present application, the first information may be explicit information or implicit information. That is, the terminal device may explicitly send information indicating the PUCCH retransmission capability of the terminal device to the network device, or may implicitly indicate the PUCCH retransmission capability of the terminal device to the network device.

[0085] Taking the first information as implicit information as an example, in some implementations, the terminal device may implicitly indicate the PUCCH retransmission capability of the terminal device by initiating a random access process on a specific random access resource (also referred to as a "first random access resource"). In other words, the first random access resource may correspond to PUCCH retransmission, and accordingly, the terminal device may send the first information to the network device, including: the terminal device initiating a random access process to the network device via the first random access resource, at which point the first random access resource carries the first information indicating that the terminal device has the PUCCH retransmission capability, or in other words, the first random access resource is used to implicitly carry the first information indicating that the terminal device has the PUCCH retransmission capability.

[0086] On the contrary, assuming that other random access resources (other random access resources except the first random access resource) do not correspond to PUCCH repeated transmission, or in other words, other random access resources are not used to carry the first information, or other random access resources are not used to implicitly carry the first information. When the terminal device initiates a random access process through other random access resources, it may indicate that the terminal device does not have the PUCCH repeated transmission capability.

[0087] In some implementations, the first random access resource may include one or more of a specified PRACH format, a specified PRACH preamble, and a specified RO. Of course, the first random access resource may also include any other configurable random access resource, which is not limited in this embodiment of the present application.

[0088] It should be noted that, in the embodiment of the present application, the above-mentioned first random access resource can be configured by a network device. Of course, the above-mentioned first random access resource can also be pre-configured or predefined by a protocol, and the embodiment of the present application does not limit this.

[0089] Taking the first information as display information as an example, in some implementations, the first information can be carried in Msg3. That is, the terminal device sending the first information to the network device includes: the terminal device sends Msg3 to the network device, and Msg3 includes the first information. Of course, in the embodiment of the present application, the first information can also be carried in other messages, and the embodiment of the present application is not limited to this.

[0090] In some implementations, the first information may be carried in one of the following Msg3: MAC CE, CCCH, and RRC signaling.

[0091] Taking the first information carried in the MAC CE as an example, the payload in the MAC CE can directly carry the bit corresponding to the first information to indicate the PUCCH retransmission capability of the terminal device. For example, 1 bit in the payload of the first MAC CE can be used to indicate the PUCCH retransmission capability. When the bit is set to 1, it indicates that the terminal device has the PUCCH retransmission capability. Conversely, when the bit is set to 0, it indicates that the terminal device does not have the PUCCH retransmission capability. Of course, in the embodiment of the present application, when the bit is set to 1, it can also indicate that the terminal device does not have the PUCCH retransmission capability. Conversely, when the bit is set to 0, it indicates that the terminal device has the PUCCH retransmission capability.

[0092] Taking the first information carried in a MAC CE as an example, the MAC CE may correspond to the first information to indicate the PUCCH retransmission capability of the terminal device. For example, when the terminal device carries the second MAC CE via Msg3, it indicates that the terminal device has the PUCCH retransmission capability. Conversely, if the second MAC CE is not carried in Msg3, it may indicate that the terminal device does not have the PUCCH retransmission capability.

[0093] For another example, when the terminal device carries the second MAC CE via Msg3, it may indicate that the terminal device does not have the PUCCH repeated transmission capability. Conversely, if the Msg3 does not carry the second MAC CE, it may indicate that the terminal device has the PUCCH repeated transmission capability.

[0094] In the embodiment of the present application, the second MAC CE may only carry the LCID, in which case the payload size of the MAC CE may be 0. Of course, in the embodiment of the present application, the payload size of the second MAC CE may also not be 0.

[0095] Taking Msg3 carried on MAC CE as an example, the LCID of MAC CE can correspond to the first information to indicate the PUCCH retransmission capability of the terminal device. For example, the third MAC CE and the fourth MAC CE correspond to LCID3 and LCID4 respectively, wherein LCID3 can indicate that the terminal device has the PUCCH retransmission capability, and LCID4 can indicate that the terminal device does not have the PUCCH retransmission capability. At this time, when the terminal device transmits the third MAC CE in Msg3, it indicates that the terminal device has the PUCCH retransmission capability. On the contrary, when the terminal device transmits the fourth MAC CE in Msg3, it indicates that the terminal device does not have the PUCCH retransmission capability.

[0096] Of course, in an embodiment of the present application, the PUCCH retransmission capability of the terminal device can also be indicated by the LCID corresponding to the first information. For example, when the fifth MAC CE carries LCID5, it can be indicated that the terminal device has the PUCCH retransmission capability. On the contrary, when the fifth MAC CE carries other LCIDs, it can be indicated that the terminal device does not have the PUCCH retransmission capability. For another example, when the fifth MAC CE carries LCID5, it can be indicated that the terminal device does not have the PUCCH retransmission capability. On the contrary, when the fifth MAC CE carries other LCIDs, it can be indicated that the terminal device has the PUCCH retransmission capability.

[0097] In the embodiment of the present application, the LCID corresponding to the first information (i.e., LCID5) can be predefined by the protocol, or preconfigured or configured by the network device, and the embodiment of the present application does not limit this. In addition, the LCID corresponding to the first information can reuse the LCID specified in the existing protocol, or it can be a newly introduced LCID in the future communication protocol, wherein the newly introduced LCID can be an LCID specifically used to indicate the first information.

[0098] As described above, the first information may also be carried in RRC signaling. In some implementations, a reserved bit field in the RRC signaling may be used to indicate the PUCCH retransmission capability of the terminal device. Of course, in an embodiment of the present application, other bit fields of the RRC signaling may also be reused to indicate the PUCCH retransmission capability of the terminal device.

[0099] As described above, the first information can also be carried in the CCCH. In some implementations, the first CCCH and / or the second CCCH (i.e., CCCH1) corresponding to the first information can be introduced, wherein the first CCCH can correspond to a different LCID than the CCCH in the current communication system, and the second CCCH can correspond to a different LCID than the CCCH in the current communication system. If the CCCH SDU transmitted by the terminal device in Msg3 is the SDU corresponding to the first CCCH and / or the second CCCH, it indicates that the terminal device has the PUCCH repeated transmission capability. On the contrary, if the CCCH SDU transmitted by the terminal device in Msg3 is the SDU corresponding to the CCCH supported in the current communication system, it indicates that the terminal device does not have the PUCCH repeated transmission capability.

[0100] It should be noted that, in the embodiment of the present application, the first CCCH and the second CCCH may correspond to different bit sizes. For example, the first CCCH may correspond to 48 bits. For another example, the second CCCH may correspond to 64 bits.

[0101] In other implementations, if the CCCH SDU transmitted by the terminal device in Msg3 is the SDU corresponding to the first CCCH, it indicates that the terminal device does not have the PUCCH repeated transmission capability. Conversely, if the CCCH SDU transmitted by the terminal device in Msg3 is the SDU corresponding to the CCCH supported by the current communication system, it indicates that the terminal device has the PUCCH repeated transmission capability.

[0102] Of course, a second CCCH and a third CCCH may be introduced in the embodiment of the present application, wherein the second CCCH and the third CCCH may correspond to different LCIDs than the CCCH in the current communication system. Accordingly, if the CCCH SDU transmitted by the terminal device in Msg3 is the SDU corresponding to the second CCCH, it indicates that the terminal device has the PUCCH repeated transmission capability. Otherwise, if the CCCH SDU transmitted by the terminal device in Msg3 is the SDU corresponding to the third CCCH, it indicates that the terminal device does not have the PUCCH repeated transmission capability.

[0103] It should be noted that, in the embodiments of the present application, the first information in Embodiment 1 and the first information in Embodiment 2 may be two separate pieces of information. In some implementations, the first information in Embodiment 2 may be sent to the network device before the first information in Embodiment 1. That is, the terminal device may first indicate to the network device that the terminal device has the capability of repeated transmission of PUCCH, and then the terminal device may request repeated transmission of PUCCH from the network device. In other implementations, the first information in Embodiment 2 may be sent to the network device after the first information in Embodiment 1. That is, the terminal device may first request repeated transmission of PUCCH from the network device, and then the terminal device may indicate to the network device that the terminal device has the capability of repeated transmission of PUCCH.

[0104] Of course, in the embodiments of the present application, the first information in Embodiment 1 and the first information in Embodiment 2 may be the same information, that is, the information may simultaneously indicate that the terminal device has the PUCCH repeated transmission capability and requests the network device to perform PUCCH repeated transmission. In other words, when the terminal device can request PUCCH repeated transmission through the first information, the first information may implicitly indicate that the terminal device has the PUCCH repeated transmission capability.

[0105] Based on the above description, it can be seen that in some implementations, the first information may correspond to a first random access resource. In the embodiment of the present application, the first random access resource may be independently configured or may be associated with a random access resource corresponding to repeated transmission of message 3 PUSCH (also referred to as a "second random access resource"). The second random access resource may be used to carry a repeated transmission indication of message 3 PUSCH, or in other words, the second random access resource may be used to implicitly carry a repeated transmission indication of message 3 PUSCH.

[0106] That is, the first random access resource belongs to the first random access resource set (denoted by “U PUCCH ”), the configured random access resource set also includes a second random access resource set, the second random access resource set (denoted by “U Msg3" indicates) corresponds to repeated transmission of message 3 PUSCH, or in other words, the second random access resource in the second random access resource set is used to carry an indication of repeated transmission of message 3 PUSCH. The first random access resource set and the second random access resource set are independently configured or associated with each other.

[0107] In some implementations, the association relationship between the first random access resource set and the second random access resource set satisfies one of the following: the first random access resource set is the same as the second random access resource set; the first random access resource set includes the second random access resource set; the second random access resource set includes the first random access resource set.

[0108] The first random access resource set includes the second random access resource set, which may include the second random access resource set being smaller than or equal to the first random access resource set. Taking the example where the second random access resource set is smaller than the first random access resource set, the second random access resource set may be a subset of the first random access resource set, or in other words, the first random access resource set is a superset of the second random access resource set.

[0109] The second random access resource set includes the first random access resource set, and may include the first random access resource set being less than or equal to the second random access resource set. Taking the example where the first random access resource set is less than the second random access resource set, the first random access resource set may be a subset of the second random access resource set, or in other words, the second random access resource set is a superset of the first random access resource set.

[0110] In an embodiment of the present application, when a first random access resource set is associated with a second random access resource set, only one of the random access resource sets may be configured, and accordingly, the remaining random access resource sets may be determined based on the configured random access resource set. For example, a network device may configure a first random access resource set for a terminal device, and accordingly, the terminal device may determine a second random access resource set based on the first random access resource set. For another example, a network device may configure a second random access resource set for a terminal device, and accordingly, the terminal device may determine the first random access resource set based on the second random access resource set. Of course, in an embodiment of the present application, when a first random access resource set is associated with a second random access resource set, the two random access resource sets may also be configured independently.

[0111] In other implementations, the first random access resource set may intersect with the second random access resource set, i.e., a third random access resource set. Accordingly, the third random access resource set corresponds to repeated transmission of message 3 PUSCH and repeated transmission of PUCCH, or in other words, the random access resources in the third random access resource set are used to carry the indication of repeated transmission of message 3 PUSCH and the first information. In other words, when a terminal device initiates a random access process using a random access resource in the third random access resource set, it may indicate that the terminal device requests repeated transmission of PUCCH and repeated transmission of Msg3.

[0112] The above describes the content and indication method of the first information in the embodiment of the present application. The following describes the triggering method of the first information in the embodiment of the present application.

[0113] In some implementations, whether the first information is sent may be determined based on a first condition. That is, if the first condition is met, the terminal device may send the first information. Conversely, if the first condition is not met, the terminal device may not send the first information.

[0114] In some implementations, the first condition can be determined based on one or more of the following: the PUCCH retransmission capability of the terminal device; the uplink coverage; the first threshold of the signal quality configured by the network device; and the first random access resource set configured by the network device.

[0115] The above-mentioned uplink coverage situation can be determined based on the signal quality measured by the terminal device, that is, the first condition can be determined based on the signal quality measured by the terminal device. For example, when the measured signal quality is low, it can indicate that the uplink coverage is poor. For another example, when the measured signal quality is high, it can indicate that the uplink coverage is good. In an embodiment of the present application, the signal quality may, for example, include the RSRP of a reference signal for downlink path loss measurement, wherein the reference signal for downlink path loss measurement may, for example, be a synchronization signal and a PBCH block (Synchronization Signal and PBCH block, SSB).

[0116] The above-mentioned first threshold can be understood as the threshold value of PUCCH repeated transmission configured by the network device for the terminal device, which can be expressed as "rsrp-ThresholdPUCCH".

[0117] Taking the first condition as an example, where the terminal device is determined based on the PUCCH retransmission capability, the first condition may include the terminal device having the PUCCH retransmission capability. That is, if the terminal device has the PUCCH retransmission capability, i.e., the first condition is met, the terminal device may send the first information. Conversely, if the terminal device does not have the PUCCH retransmission capability, i.e., the first condition is not met, the terminal device may not send the first information.

[0118] Taking the first condition as an example, where the first condition is determined based on the signal quality measured by the terminal device, the first condition may include that the signal quality measured by the terminal device is less than a threshold. In other words, if the measured signal quality is less than the threshold, i.e., the first condition is met, the terminal device may send the first information. Conversely, if the measured signal quality is greater than or equal to the threshold, i.e., the first condition is not met, the terminal device may not send the first information.

[0119] In an embodiment of the present application, the above threshold may be predefined or preconfigured by the protocol. In this case, the first condition may be understood as being determined based on the signal quality measured by the terminal device.

[0120] Taking the example of a first condition determined based on a first random access resource set configured on a network device, the first condition may include that the network device is configured with the first random access resource set. That is, if the network device is configured with the first random access resource set, i.e., the first condition is satisfied, the terminal device may send the first information. Conversely, if the network device is not configured with the first random access resource set, i.e., the first condition is not satisfied, the terminal device may not send the first information.

[0121] In an embodiment of the present application, the above-mentioned first condition can be used alone as described above, or can be used in combination with each other. In some implementations, the first condition can be determined based on the signal quality measured by the terminal device and a first threshold. The first condition can include that the signal quality measured by the terminal device is less than the first threshold. In other words, when the measured signal quality is less than the first threshold, that is, the first condition is met, the terminal device can send the first information. Conversely, when the measured signal quality is greater than or equal to the first threshold, that is, the first condition is not met, the terminal device may not send the first information.

[0122] In other implementations, the first condition may be determined based on a first random access resource set configured by the network device, the signal quality measured by the terminal device, and a first threshold. For example, the first condition may include that the network device is configured with a random access resource set for PUCCH repeated transmission and a random access resource set not used for PUCCH repeated transmission, and the signal quality measured by the terminal device is less than the first threshold. That is to say, when the network device is configured with a random access resource set for PUCCH repeated transmission and a random access resource set not used for PUCCH repeated transmission, and the signal quality measured by the terminal device is less than the first threshold, the first condition is met, and the terminal device may send the first information. Conversely, if the first condition is not met, the terminal device may not send the first information.

[0123] It should be noted that in some of the scenarios described, if the network device is only configured with random access resources for PUCCH retransmission, the terminal device can only request PUCCH retransmission. In other scenarios, if the network device is not configured with random access resources for PUCCH retransmission, the terminal device cannot request PUCCH retransmission. For the above two scenarios, the terminal device does not need to compare the measured signal quality with the first threshold.

[0124] As described above, in the above two scenarios, the terminal device may not use the first threshold. Therefore, in order to reduce the overhead required to configure the first threshold, the network device may not configure the first threshold for the terminal device. Of course, in the embodiment of the present application, the network device may also configure the first threshold for the terminal device.

[0125] On the contrary, if the network device configures a random access resource for PUCCH repeated transmission and a set of random access resources not used for PUCCH repeated transmission for the terminal device, at this time, the terminal device can determine whether to request PUCCH repeated transmission based on the relationship between the measured signal quality and the first threshold. In other words, in this scenario, the network device can configure the first threshold for the terminal device for use by the terminal device. Of course, in the embodiment of the present application, the network device may not configure the first threshold for the terminal device in the above scenario. At this time, the terminal device can select whether to request PUCCH repeated transmission based on other conditions or randomly.

[0126] The above introduces the first information of the embodiment of the present application, and the following introduces the scheme for configuring the number of PUCCH repeated transmissions in the embodiment of the present application.

[0127] In some implementations, before step S210, the method further includes: the network device sends second information to the terminal device, where the second information is used to indicate the number of repeated transmissions of the first PUCCH.

[0128] In the embodiment of the present application, there are many ways to configure the number of repeated transmissions, which are introduced below in combination with configuration method 1 and configuration method 2.

[0129] Configuration method 1: The second information directly configures the number of repeated transmissions.

[0130] In some implementations, the second information may be carried in a system message, which helps implement PUCCH repeated transmission based on relatively simple procedures and signaling. Of course, in the embodiment of the present application, the second information may also be information sent separately, which is not limited in the embodiment of the present application.

[0131] That is, the network device may carry the second information in the system message to configure the number of repeated transmissions of the first PUCCH, N. Accordingly, the terminal device may repeatedly send the first PUCCH in N time slots based on the number of repeated transmissions N configured by the second information.

[0132] In some scenarios, the number of repeated transmissions configured by the second information may be a cell-level number of repeated transmissions, that is, a terminal device within the cell may perform PUCCH repeated transmissions based on the number of repeated transmissions configured by the second information. Of course, in the embodiment of the present application, the number of repeated transmissions may also be terminal-level (or user-level), that is, the number of repeated transmissions is valid only for a certain terminal.

[0133] Taking the NTN system as an example, due to the long distance between the satellite and the ground, coverage performance within the same cell can vary slightly. In this case, the network equipment can configure the cell-level retransmission count in system messages. For terminal devices in the cell, PUCCH retransmissions can be performed based on the cell-level retransmission count. For example, based on coverage assessment, the network equipment can determine the cell-level retransmission count N = 4 and indicate this to the terminal device through a system message. Accordingly, the terminal device can retransmit the PUCCH in four time slots.

[0134] It should be noted that in other scenarios, if the network device indicates the number of repeated transmissions at the cell level through the second information, but some terminal devices in the cell do not request PUCCH repeated transmission, or in other words, some terminal devices in the cell do not have the PUCCH repeated transmission capability, then these terminal devices can send PUCCH only in one time slot.

[0135] Configuration mode 2: the number of repeated transmissions indicated by the second information is selected from a set of repeated transmission numbers.

[0136] In an embodiment of the present application, the number of repeated transmissions selected from the set of repeated transmission times is indicated by the second information, which helps to dynamically configure different PUCCH repeated transmission times for different terminal devices, so as to improve the flexibility of the terminal device in performing PUCCH repeated transmission. On the other hand, it helps to save the overhead required to transmit PUCCH.

[0137] In some implementations, the set of retransmission times may be preconfigured or configured by a network device. For example, the retransmission times may be configured via a system message. Of course, in embodiments of the present application, the set of retransmission times may also be predefined by a protocol. In this case, the set of retransmission times may be referred to as a "default set of retransmission times or a default set."

[0138] In some implementations, the second information may be carried in the DCI. Of course, in the embodiment of the present application, the second information may also be carried in other information, or the second information may also be independently transmitted information. The embodiment of the present application does not limit this.

[0139] In some implementations, the network device may configure a set M of PUCCH retransmission times in a system message. If the terminal device requests PUCCH retransmission from the network device and / or indicates that the terminal device has PUCCH retransmission capability, the network device may indicate to the terminal device, through the second information in the DCI, the number of retransmission times N selected from the set M of retransmission times. Accordingly, the terminal device may retransmit the PUCCH over N time slots.

[0140] For example, the network device may configure a set of PUCCH retransmission times M = {2, 4} in a system message. If the terminal device requests PUCCH retransmission from the network device and / or indicates that the terminal device has PUCCH retransmission capability, the network device may indicate to the terminal device, through the second information in the DCI, the number of retransmissions N = 2 selected from the retransmission times set M. Accordingly, the terminal device may retransmit the PUCCH on two time slots.

[0141] In some other implementations, the network device does not configure the PUCCH retransmission count set M in the system message. In this case, if the terminal device requests PUCCH retransmission from the network device and / or indicates that the terminal device has PUCCH retransmission capability, the network device may indicate to the terminal device, through the second information in the DCI, the retransmission count N selected from the default retransmission count set P. Accordingly, the terminal device may retransmit the PUCCH over N time slots.

[0142] For example, if the network device does not configure the PUCCH retransmission count set M in the system message, then if the terminal device requests PUCCH retransmission from the network device and / or indicates that the terminal device has PUCCH retransmission capability, the network device can indicate to the terminal device through the second information in the DCI the retransmission count N = 2 selected from the default retransmission count set P = {1, 2}. Accordingly, the terminal device can retransmit the PUCCH on two time slots.

[0143] As described above, in some implementations, the number of PUCCH retransmissions can be indicated by carrying second information in a DCI (also referred to as a "first DCI"). In the embodiments of the present application, a new field can be introduced in the DCI to carry the second information. Of course, the field of the DCI in the current protocol can also be reused to carry the second information.

[0144] In the embodiment of the present application, the above-mentioned DCI may include one or more of RAR uplink grant, DCI 0_0 using TC-RNTI scrambled CRC, and DCI 1_0 using TC-RNTI scrambled CRC.

[0145] Taking the reuse of an existing field in an RAR uplink grant to carry the second information as an example, in some implementations, the second information can be carried using an existing field in the RAR uplink grant. For example, if the RAR uplink grant includes a CSI request field and the channel state information (CSI) request field includes a 1-bit reserved bit, the reserved bit can be used to carry the second information, indicating the number of PUCCH retransmissions.

[0146] In other implementations, similar to the Msg3 repeated transmission described above, the RAR uplink grant or DCI 0_0 can be reinterpreted, and the second information is carried by 1 or 2 bits of the MCS field to indicate the number of PUCCH repeated transmissions.

[0147] Taking the reuse of an existing field in DCI 0_0 in the current protocol to carry the second information as an example, in some implementations, the second information can be indicated in an existing field in DCI 0_0 using a TC-RNTI scrambled CRC. For example, similar to the repeated transmission of Msg3 described above, the MCS field in DCI 0_0 can be reinterpreted, and the number of PUCCH repeated transmissions can be indicated using one or two bits of the MCS field.

[0148] In other implementations, the DCI 1_0 currently using the TC-RNTI to scramble the CRC includes a downlink assignment index (DAI) field, and the DAI field includes 2 reserved bits. At this time, the second information can be carried by 1 bit or 2 bits in the DAI field to indicate the number of PUCCH repeated transmissions.

[0149] Of course, in an embodiment of the present application, one or more of the transmit power control (TPC) command field, the PUCCH resource indication field, and the HARQ feedback timing indication field in the DCI may be used to carry the second information to indicate the number of repeated transmissions of the PUCCH. Taking the TPC command field in the DCI as an example, the PUCCH closed-loop power control adjustment and the number of repeated transmissions of the PUCCH may be jointly indicated. Taking the PUCCH resource indication field in the DCI as an example, the PUCCH resources and the number of repeated transmissions of the PUCCH may be jointly indicated. Taking the HARQ feedback timing field in the DCI as an example, the HARQ feedback timing and the number of repeated transmissions of the PUCCH may be jointly indicated. Alternatively, a new field may be introduced in an embodiment of the present application to carry the second information. For example, the new field may contain 1 bit or 2 bits, which is specifically used to carry the second information to indicate the number of repeated transmissions of the PUCCH.

[0150] As described above, if the first PUCCH can include the PUCCH during the random access process, the repeated transmission of the first PUCCH can also be called the first repeated transmission. If the first PUCCH can include the PUCCH after Msg4 and before the dedicated PUCCH resource configuration, the repeated transmission of the first PUCCH can also be called the second repeated transmission. Accordingly, the configuration method for the number of repeated transmissions described above can be applied to both the first repeated transmission and the second repeated transmission.

[0151] Of course, in the embodiments of the present application, the number of transmissions for the second repeated transmission can be determined based on the number of transmissions for the first repeated transmission. In some implementations, the number of transmissions for the second repeated transmission can be the same as the number of transmissions for the first repeated transmission. Of course, in the embodiments of the present application, the number of transmissions for the second repeated transmission can be adjusted based on the number of transmissions for the first repeated transmission. This embodiment of the present application is not limited to this.

[0152] For example, if the first repetition transmission includes PUCCH repetition transmission scheduled by DCI 1_0 using TC-RNTI scrambled CRC, then the number of repetition transmissions of the second repetition transmission can be the same as the number of transmissions of the first repetition transmission, that is, the number of PUCCH repetition transmissions after Msg4 and before the dedicated PUCCH resource configuration is the same as the number of PUCCH repetition transmissions for feedback Msg4 HARQ-ACK.

[0153] In other implementations, the number of repeated transmissions of the second repeated transmission may also be determined by indication information in the second DCI, or in other words, the second information indicating the number of repeated transmissions of the second repeated transmission may also be determined by indication information in the second DCI. The configuration method of the second information may refer to the above description, for example, configuration method 1 and / or configuration method 2 may be adopted. For the sake of brevity, the following description will not be repeated. In the embodiment of the present application, the above-mentioned second DCI may include DCI 1_0 using C-RNTI to scramble CRC.

[0154] In an embodiment of the present application, one or more of the TPC command field, the PUCCH resource indication field, and the HARQ feedback timing indication field in the second DCI may be used to carry the second information to indicate the number of repeated transmissions of the second repeated transmission. Taking the TPC command field in the DCI as an example, the PUCCH closed-loop power control adjustment and the number of repeated transmissions of the second repeated transmission may be jointly indicated. Taking the PUCCH resource indication field in the DCI as an example, the PUCCH resources and the number of repeated transmissions of the second repeated transmission may be jointly indicated. Taking the HARQ feedback timing field in the DCI as an example, the HARQ feedback timing and the number of repeated transmissions of the second repeated transmission may be jointly indicated. Alternatively, in an embodiment of the present application, a new field type may be introduced in the second DCI to carry the second information. For example, the new field may contain 1 bit or 2 bits, which is specifically used to carry the second information to indicate the number of repeated transmissions of the second repeated transmission.

[0155] In some other implementations, the number of repetitions of the second repetition may also be determined by the number of repetitions of the PUCCH indicated in the system message. For example, the number of repetitions of the second repetition may be the same as the number of repetitions of the PUCCH indicated in the system message. For another example, the number of repetitions of the second repetition may be obtained by adjusting the number of repetitions of the PUCCH indicated in the system message.

[0156] For ease of understanding, the following describes the method of the embodiment of the present application in conjunction with Figures 3 to 7. It should be noted that the terms, information, and information carrying methods involved in the methods shown in Figures 3 to 7 can be found in the above description. Figures 3 to 7 are mainly used to describe the method flow of the embodiment of the present application.

[0157] Figure 3 is a flow chart of a wireless communication method according to an embodiment of the present application. The method shown in Figure 3 is described by taking PUCCH1 as the first PUCCH as an example, and the method shown in Figure 3 includes steps S310 to S330.

[0158] In step S310 , the network device sends configuration information 1 to the terminal device.

[0159] In some implementations, configuration information 1 is used to configure a random access resource set for PUCCH repeated transmission (i.e., a first random resource set), a random access resource set not used for PUCCH repeated transmission, and a PUCCH repeated transmission threshold value (also known as the "first threshold").

[0160] In step S320 , the terminal device measures signal quality.

[0161] In some implementations, the terminal device may measure the RSRP of a reference signal used to determine downlink path loss.

[0162] In step S330, the terminal device determines whether to send the first information based on the measured signal quality and the PUCCH retransmission threshold.

[0163] In some implementations, if the measured signal quality is less than the PUCCH retransmission threshold, the terminal device initiates random access on the random access resources used for PUCCH retransmission to indicate a request for PUCCH retransmission.

[0164] On the contrary, if the measured signal quality is greater than or equal to the PUCCH retransmission threshold, the terminal device initiates random access on a random access resource not used for PUCCH retransmission to indicate that PUCCH retransmission is not requested.

[0165] Figure 4 is a flow chart of a wireless communication method according to another embodiment of the present application. The method shown in Figure 4 is described by taking PUCCH1 as the first PUCCH as an example, and the method shown in Figure 4 includes steps S410 to S430.

[0166] In step S410, the network device sends second information to the terminal device.

[0167] In some implementations, the second information is used to configure the number of repetition transmissions N of cell-level PUCCH repetition transmissions.

[0168] In step S420, the terminal device sends first information to the network device.

[0169] In some implementations, the first information is used to indicate that the terminal device has PUCCH repeated transmission capability, and / or the terminal device requests PUCCH repeated transmission.

[0170] In step S430, the terminal device repeatedly transmits PUCCH1 based on the number of repeated transmissions N.

[0171] In some implementations, the terminal device repeatedly transmits PUCCH1 over N time slots.

[0172] It should be noted that, in the embodiment of the present application, the execution order between step S410 and step S420 is not limited. For example, step S410 may be executed before step S420. For another example, step S410 may be executed after step S420.

[0173] Figure 5 is a flow chart of a wireless communication method according to another embodiment of the present application. The method shown in Figure 5 is described by taking PUCCH1 as the first PUCCH as an example, and the method shown in Figure 5 includes steps S510 to S540.

[0174] In step S510 , the network device sends system information 1 to the terminal device.

[0175] In some implementations, the system information 1 is used to configure a set M of repeated transmission times.

[0176] In step S520, the terminal device sends first information to the network device.

[0177] In some implementations, the first information is used to indicate that the terminal device has PUCCH repeated transmission capability, and / or the terminal device requests PUCCH repeated transmission.

[0178] In step S530, the network device sends second information to the terminal device.

[0179] In some implementations, the second information is used to indicate the number of repetition transmissions N selected from a set M of repetition transmission numbers.

[0180] In step S540, the terminal device repeatedly transmits PUCCH1 based on the number of repeated transmissions N.

[0181] In some implementations, the terminal device repeatedly transmits PUCCH1 over N time slots.

[0182] It should be noted that, in the embodiment of the present application, the execution order between step S510 and step S520 is not limited. For example, step S510 may be executed before step S520. For another example, step S510 may be executed after step S520.

[0183] In addition, in the embodiment of the present application, the execution order between step S520 and step S530 is not limited. For example, step S520 can be executed before step S530. For another example, step S520 can be executed after step S530.

[0184] Figure 6 is a flow chart of a wireless communication method according to another embodiment of the present application. The method shown in Figure 6 is described by taking PUCCH1 as the first PUCCH as an example, and the method shown in Figure 6 includes steps S610 to S620.

[0185] In step S610, before transmitting Msg4, the terminal device sends first information to the network device.

[0186] In some implementations, the first information is used to indicate that the terminal device has PUCCH repeated transmission capability, and / or the terminal device requests PUCCH repeated transmission.

[0187] In step S620, before the dedicated PUCCH resource is configured, the terminal device performs repeated transmission of PUCCH1.

[0188] Figure 7 is a flow chart of a wireless communication method according to another embodiment of the present application. The method shown in Figure 7 is described by taking PUCCH1 as the first PUCCH as an example, and the method shown in Figure 7 includes steps S710 to S720.

[0189] In step S710, after transmitting Msg4, the terminal device sends the first message to the network device.

[0190] In some implementations, the first information is used to indicate that the terminal device has PUCCH repeated transmission capability, and / or the terminal device requests PUCCH repeated transmission.

[0191] In step S720, before the dedicated PUCCH resource is configured, the terminal device performs repeated transmission of PUCCH1.

[0192] The method embodiment of the present application is described in detail above in conjunction with Figures 1 to 7 . The device embodiment of the present application is described in detail below in conjunction with Figures 8 to 10 . It should be understood that the description of the method embodiment corresponds to the description of the device embodiment. Therefore, for parts not described in detail, reference can be made to the above method embodiment.

[0193] FIG8 is a schematic diagram of a terminal device according to an embodiment of the present application. The terminal device 800 shown in FIG8 includes: a sending unit 810 .

[0194] Before configuring the dedicated PUCCH resources of the terminal device, the sending unit 810 is used to send a first PUCCH based on repeated transmission to the network device.

[0195] In a possible implementation, the sending unit is further used to: send first information to the network device, where the first information is used to request repeated transmission of the first PUCCH and / or indicate the PUCCH repeated transmission capability of the terminal device.

[0196] In a possible implementation manner, the sending unit is further configured to: initiate a random access process to the network device through a first random access resource, where the first random access resource carries the first information.

[0197] In a possible implementation, the first random access resource belongs to a first random access resource set in a configured random access resource set, the configured random access resource set also includes a second random access resource set, the random access resources in the second random access resource set are used to carry a repeated transmission indication of message 3 PUSCH, and the first random access resource set and the second random access resource set are independently configured or associated with each other.

[0198] In one possible implementation, the association relationship between the first random access resource set and the second random access resource set satisfies one of the following: the first random access resource set is the same as the second random access resource set; the first random access resource set includes the second random access resource set; and the second random access resource set includes the first random access resource set.

[0199] In a possible implementation, the intersection of the first random access resource set and the second random access resource set is a third random access resource set, and the random access resources in the third random access resource set are used to carry the indication of repeated transmission of the message 3 PUSCH and the first information.

[0200] In a possible implementation manner, the sending unit is further configured to: send a message 3 to the network device, where the message 3 includes the first information.

[0201] In a possible implementation manner, the first information is carried in one of the following of the message 3: MAC CE, CCCH, and RRC signaling.

[0202] In one possible implementation, whether the first information is sent is determined based on a first condition, and the first condition is determined based on one or more of the following: the PUCCH retransmission capability of the terminal device; the signal quality measured by the terminal device; the first threshold of the signal quality configured by the network device; and the first random access resource set configured by the network device.

[0203] In one possible implementation, the first condition includes one or more of the following: the signal quality measured by the terminal device is less than the first threshold; the network device is configured with a random access resource set for PUCCH repeated transmission and a random access resource set not used for PUCCH repeated transmission; the terminal device has PUCCH repeated transmission capability.

[0204] In a possible implementation, the terminal device further includes: a receiving unit, configured to receive second information sent by the network device, where the second information is used to indicate the number of repeated transmissions of the first PUCCH.

[0205] In a possible implementation manner, the second information is carried in a system message.

[0206] In a possible implementation manner, the number of repeated transmissions indicated by the second information is selected from a set of repeated transmission numbers that is preconfigured or configured by the network device.

[0207] In a possible implementation, the set of repeated transmission times is carried in a system message; and / or the second information is carried in a first DCI.

[0208] In one possible implementation, the repeated transmission of the first PUCCH includes one or more of the following: a first repeated transmission during the random access process of the terminal device; and a second repeated transmission after the random access process ends and before the dedicated PUCCH resources are configured.

[0209] In one possible implementation, the number of repetitions of the second repetition is determined based on one or more of the following: the number of repetitions of the first repetition; indication information in the second DCI; and the number of repetitions of the PUCCH indicated by a system message.

[0210] FIG9 is a schematic diagram of a network device according to an embodiment of the present application. The network device 900 shown in FIG9 includes: a receiving unit 910 .

[0211] Before configuring the dedicated PUCCH resources of the terminal device, the receiving unit 910 is used to receive a first PUCCH based on repeated transmission sent by the terminal device.

[0212] In a possible implementation, the receiving unit is further used to: receive first information sent by the terminal device, where the first information is used to request repeated transmission of the first PUCCH and / or indicate the PUCCH repeated transmission capability of the terminal device.

[0213] In a possible implementation, the receiving unit is further configured to: receive a random access process initiated by the terminal device through a first random access resource, where the first random access resource carries the first information.

[0214] In a possible implementation, the first random access resource belongs to a first random access resource set in a configured random access resource set, the configured random access resource set also includes a second random access resource set, the random access resources in the second random access resource set are used to carry a repeated transmission indication of message 3 PUSCH, and the first random access resource set and the second random access resource set are independently configured or associated with each other.

[0215] In one possible implementation, the association relationship between the first random access resource set and the second random access resource set satisfies one of the following: the first random access resource set is the same as the second random access resource set; the first random access resource set includes the second random access resource set; and the second random access resource set includes the first random access resource set.

[0216] In a possible implementation, the intersection of the first random access resource set and the second random access resource set is a third random access resource set, and the random access resources in the third random access resource set are used to carry the indication of repeated transmission of the message 3 PUSCH and the first information.

[0217] In a possible implementation, the receiving unit is further configured to: receive a message 3 sent by the terminal device, where the message 3 includes the first information.

[0218] In a possible implementation manner, the first information is carried in one of the following of the message 3: MAC CE, CCCH, and RRC signaling.

[0219] In one possible implementation, whether the first information is sent is determined based on a first condition, and the first condition is determined based on one or more of the following: the PUCCH retransmission capability of the terminal device; the signal quality measured by the terminal device; the first threshold of the signal quality configured by the network device; and the first random access resource set configured by the network device.

[0220] In one possible implementation, the first condition includes one or more of the following: the signal quality measured by the terminal device is less than the first threshold; the network device is configured with a random access resource set for PUCCH repeated transmission and a random access resource set not used for PUCCH repeated transmission; the terminal device has PUCCH repeated transmission capability.

[0221] In a possible implementation, the network device further includes: a sending unit, configured to send second information to the terminal device, where the second information is used to indicate the number of repeated transmissions of the first PUCCH.

[0222] In a possible implementation manner, the second information is carried in a system message.

[0223] In a possible implementation manner, the number of repeated transmissions indicated by the second information is selected from a set of repeated transmission numbers that is preconfigured or configured by the network device.

[0224] In a possible implementation, the set of repeated transmission times is carried in a system message; and / or the second information is carried in a first DCI.

[0225] In one possible implementation, the repeated transmission of the first PUCCH includes one or more of the following: a first repeated transmission during the random access process of the terminal device; and a second repeated transmission after the random access process ends and before the dedicated PUCCH resources are configured.

[0226] In one possible implementation, the number of repetitions of the second repetition is determined based on one or more of the following: the number of repetitions of the first repetition; indication information in the second DCI; and the number of repetitions of the PUCCH indicated by a system message.

[0227] In an optional embodiment, the sending unit 810 may be a transceiver 1030. The terminal device 900 may further include a processor 1010 and a memory 1020, as specifically shown in FIG10 .

[0228] In an optional embodiment, the receiving unit 910 may be a transceiver 1030. The network device 900 may further include a processor 1010 and a memory 1020, as specifically shown in FIG10 .

[0229] Figure 10 is a schematic block diagram of a communication device according to an embodiment of the present application. The dashed lines in Figure 10 indicate that the unit or module is optional. The device 1000 may be used to implement the method described in the above method embodiment. The device 1000 may be a chip, a terminal device, or a network device.

[0230] The device 1000 may include one or more processors 1010. The processor 1010 may support the device 1000 to implement the method described in the method embodiment above. The processor 1010 may be a general-purpose processor or a special-purpose processor. For example, the processor may be a central processing unit (CPU). Alternatively, the processor may be another general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, etc. The general-purpose processor may be a microprocessor or the processor may be any conventional processor, etc.

[0231] The apparatus 1000 may further include one or more memories 1020. The memories 1020 store programs that can be executed by the processor 1010, causing the processor 1010 to perform the methods described in the above method embodiments. The memories 1020 may be independent of the processor 1010 or integrated into the processor 1010.

[0232] The apparatus 1000 may further include a transceiver 1030. The processor 1010 may communicate with other devices or chips via the transceiver 1030. For example, the processor 1010 may transmit and receive data with other devices or chips via the transceiver 1030.

[0233] The present application also provides a computer-readable storage medium for storing a program. The computer-readable storage medium can be applied to a terminal or network device provided in the present application, and the program enables a computer to execute the method performed by the terminal or network device in each embodiment of the present application.

[0234] The present application also provides a computer program product. The computer program product includes a program. The computer program product can be applied to a terminal or network device provided in the present application, and the program causes a computer to execute the method performed by the terminal or network device in each embodiment of the present application.

[0235] The embodiments of the present application also provide a computer program. The computer program can be applied to the terminal or network device provided in the embodiments of the present application, and the computer program enables a computer to execute the method performed by the terminal or network device in each embodiment of the present application.

[0236] It should be understood that the terms "system" and "network" in this application can be used interchangeably. In addition, the terms used in this application are only used to explain the specific embodiments of this application and are not intended to limit this application. The terms "first", "second", "third", and "fourth" in the specification and claims of this application and the accompanying drawings are used to distinguish different objects rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0237] In the embodiments of this application, the term "indication" may refer to a direct indication, an indirect indication, or an indication of an association. For example, "A indicates B" may refer to a direct indication of B, e.g., B can obtain information through A; it may refer to an indirect indication of B, e.g., A indicates C, e.g., B can obtain information through C; or it may refer to an association between A and B.

[0238] In the embodiment of the present application, "B corresponding to A" means that B is associated with A and B can be determined based on A. However, it should be understood that determining B based on A does not mean determining B based solely on A, but B can also be determined based on A and / or other information.

[0239] In the embodiments of the present application, the term "corresponding" may indicate a direct or indirect correspondence between the two, or an association relationship between the two, or a relationship between indication and indication, configuration and configuration, etc.

[0240] In the embodiments of the present application, "pre-definition" or "pre-configuration" may be implemented by pre-storing corresponding codes, tables, or other methods that can be used to indicate relevant information in a device (e.g., a terminal device and a network device). The present application does not limit the specific implementation method. For example, pre-definition may refer to information defined in a protocol.

[0241] In the embodiments of the present application, the “protocol” may refer to a standard protocol in the communications field, for example, it may include an LTE protocol, an NR protocol, and related protocols used in future communication systems, and the present application does not limit this.

[0242] In the embodiments of this application, the term "and / or" is simply a description of the association relationship between related objects, indicating that three relationships can exist. 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 document generally indicates that the related objects are in an "or" relationship.

[0243] In various embodiments of the present application, the size of the serial numbers of the above-mentioned 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.

[0244] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, 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.

[0245] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0246] In addition, each functional unit in each embodiment of the present application 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.

[0247] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from one website, computer, server or data center to another website, computer, server or data center via a wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) method. The computer-readable storage medium can be any available medium that can be read by a computer or a data storage device such as a server or data center that includes one or more available media integrated therein. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a digital versatile disc (DVD)), or a semiconductor medium (eg, a solid state disk (SSD)).

[0248] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A wireless communication method, characterized in that: include: Before configuring the dedicated physical uplink control channel PUCCH resources of the terminal device, the terminal device sends a first PUCCH based on repeated transmission to the network device.

2. The method according to claim 1, characterized in that Before the terminal device sends the first PUCCH based on repeated transmission to the network device, the method further includes: The terminal device sends first information to the network device, where the first information is used to request repeated transmission of the first PUCCH and / or indicate the PUCCH repeated transmission capability of the terminal device.

3. The method according to claim 2, characterized in that The terminal device sending first information to the network device includes: The terminal device initiates a random access process to the network device through a first random access resource, where the first random access resource carries the first information.

4. The method according to claim 3, characterized in that The first random access resource belongs to a first random access resource set in a configured random access resource set, the configured random access resource set also includes a second random access resource set, the random access resources in the second random access resource set are used to carry a repeated transmission indication of message 3 PUSCH, and the first random access resource set and the second random access resource set are independently configured or associated with each other.

5. The method according to claim 4, characterized in that The association relationship between the first random access resource set and the second random access resource set satisfies one of the following: The first random access resource set is the same as the second random access resource set; The first random access resource set includes the second random access resource set; The second random access resource set includes the first random access resource set.

6. The method according to claim 4 or 5, characterized in that The intersection of the first random access resource set and the second random access resource set is a third random access resource set, and the random access resources in the third random access resource set are used to carry the indication of repeated transmission of the message 3 PUSCH and the first information.

7. The method according to claim 2, characterized in that The terminal device sending first information to the network device includes: The terminal device sends a message 3 to the network device, where the message 3 includes the first information.

8. The method according to claim 7, characterized in that The first information is carried in one of the following of the message 3: a media access control element MAC CE, a common control channel CCCH, and a radio resource control RRC signaling.

9. The method according to any one of claims 2 to 8, characterized in that Whether the first information is sent is determined based on a first condition, where the first condition is determined based on one or more of the following: The PUCCH retransmission capability of the terminal device; signal quality measured by the terminal device; a first threshold of the signal quality configured by the network device; A first random access resource set configured by the network device.

10. The method according to claim 9, characterized in that The first condition includes one or more of the following: The signal quality measured by the terminal device is less than the first threshold; The network device is configured with a random access resource set used for PUCCH repeated transmission and a random access resource set not used for PUCCH repeated transmission; The terminal device has the capability of PUCCH repeated transmission.

11. The method according to any one of claims 1 to 10, characterized in that Before the terminal device sends the first PUCCH based on repeated transmission to the network device, the method further includes: The terminal device receives second information sent by the network device, where the second information is used to indicate the number of repeated transmissions of the first PUCCH.

12. The method according to claim 11, characterized in that The second information is carried in a system message.

13. The method according to claim 11, characterized in that The number of repeated transmissions indicated by the second information is selected from a set of repeated transmission numbers that are preconfigured or configured by the network device.

14. The method according to claim 13, characterized in that The set of repeated transmission times is carried in a system message; and / or the second information is carried in first downlink control information DCI.

15. The method according to any one of claims 1 to 14, characterized in that The repeated transmission of the first PUCCH includes one or more of the following: A first repeated transmission during a random access process of the terminal device; and The second repeated transmission is performed after the random access procedure ends and before the dedicated PUCCH resource is configured.

16. The method according to claim 15, characterized in that The number of repeated transmissions of the second repeated transmission is determined based on one or more of the following: the number of repeated transmissions of the first repeated transmission; indication information in the second DCI; The number of PUCCH retransmissions indicated by the system message.

17. A wireless communication method, characterized in that: include: Before configuring the dedicated physical uplink control information PUCCH resource of the terminal device, the network device receives a first PUCCH based on repeated transmission sent by the terminal device.

18. The method according to claim 17, characterized in that Before the terminal device sends the first PUCCH based on repeated transmission to the network device, the method further includes: The network device receives first information sent by the terminal device, where the first information is used to request repeated transmission of the first PUCCH and / or indicate the PUCCH repeated transmission capability of the terminal device.

19. The method according to claim 18, characterized in that The network device receives first information sent by the terminal device, including: The network device receives a random access process initiated by the terminal device through a first random access resource, where the first random access resource carries the first information.

20. The method according to claim 19, characterized in that The first random access resource belongs to a first random access resource set in a configured random access resource set, the configured random access resource set also includes a second random access resource set, the random access resources in the second random access resource set are used to carry a repeated transmission indication of message 3 PUSCH, and the first random access resource set and the second random access resource set are independently configured or associated with each other.

21. The method according to claim 20, characterized in that The association relationship between the first random access resource set and the second random access resource set satisfies one of the following: The first random access resource set is the same as the second random access resource set; The first random access resource set includes the second random access resource set; The second random access resource set includes the first random access resource set.

22. The method according to claim 20 or 21, characterized in that The intersection of the first random access resource set and the second random access resource set is a third random access resource set, and the random access resources in the third random access resource set are used to carry the indication of repeated transmission of the message 3 PUSCH and the first information.

23. The method according to claim 18, wherein The network device receives first information sent by the terminal device, including: The network device receives message 3 sent by the terminal device, where the message 3 includes the first information.

24. The method according to claim 23, wherein The first information is carried in one of the following of the message 3: a media access control element MAC CE, a common control channel CCCH, and a radio resource control RRC signaling.

25. The method according to any one of claims 18 to 24, characterized in that Whether the first information is sent is determined based on a first condition, where the first condition is determined based on one or more of the following: The PUCCH retransmission capability of the terminal device; signal quality measured by the terminal device; a first threshold of the signal quality configured by the network device; A first random access resource set configured by the network device.

26. The method according to claim 25, characterized in that The first condition includes one or more of the following: The signal quality measured by the terminal device is less than the first threshold; The network device is configured with a random access resource set used for PUCCH repeated transmission and a random access resource set not used for PUCCH repeated transmission; The terminal device has the capability of PUCCH repeated transmission.

27. The method according to any one of claims 17 to 26, characterized in that Before the terminal device sends the first PUCCH based on repeated transmission to the network device, the method further includes: The network device sends second information to the terminal device, where the second information is used to indicate the number of repeated transmissions of the first PUCCH.

28. The method according to claim 27, characterized in that The second information is carried in a system message.

29. The method according to claim 27, characterized in that The number of repeated transmissions indicated by the second information is selected from a set of repeated transmission numbers that are preconfigured or configured by the network device.

30. The method according to claim 29, wherein The set of repeated transmission times is carried in a system message; and / or the second information is carried in first downlink control information DCI.

31. The method according to any one of claims 17 to 30, characterized in that The repeated transmission of the first PUCCH includes one or more of the following: A first repeated transmission during a random access process of the terminal device; and The second repeated transmission is performed after the random access procedure ends and before the dedicated PUCCH resource is configured.

32. The method according to claim 31, characterized in that The number of repeated transmissions of the second repeated transmission is determined based on one or more of the following: the number of repeated transmissions of the first repeated transmission; indication information in the second DCI; The number of PUCCH retransmissions indicated by the system message.

33. A terminal device, characterized in that: include: Before configuring the dedicated PUCCH resources of the terminal device, the sending unit is used to send a first PUCCH based on repeated transmission to the network device.

34. The terminal device according to claim 33, characterized in that The sending unit is further configured to: Sending first information to the network device, where the first information is used to request repeated transmission of the first PUCCH and / or indicate the PUCCH repeated transmission capability of the terminal device.

35. The terminal device according to claim 34, characterized in that The sending unit is further configured to: A random access process is initiated to the network device through a first random access resource, where the first random access resource carries the first information.

36. The terminal device according to claim 35, characterized in that The first random access resource belongs to a first random access resource set in a configured random access resource set, the configured random access resource set also includes a second random access resource set, the random access resources in the second random access resource set are used to carry a repeated transmission indication of message 3 PUSCH, and the first random access resource set and the second random access resource set are independently configured or associated with each other.

37. The terminal device according to claim 36, characterized in that The association relationship between the first random access resource set and the second random access resource set satisfies one of the following: The first random access resource set is the same as the second random access resource set; The first random access resource set includes the second random access resource set; The second random access resource set includes the first random access resource set.

38. The terminal device according to claim 36 or 37, characterized in that: The intersection of the first random access resource set and the second random access resource set is a third random access resource set, and the random access resources in the third random access resource set are used to carry the indication of repeated transmission of the message 3 PUSCH and the first information.

39. The terminal device according to claim 34, characterized in that The sending unit is further configured to: Send a message 3 to the network device, where the message 3 includes the first information.

40. The terminal device according to claim 39, characterized in that The first information is carried in one of the following of the message 3: MAC CE, CCCH, and RRC signaling.

41. The terminal device according to any one of claims 34 to 40, characterized in that: Whether the first information is sent is determined based on a first condition, where the first condition is determined based on one or more of the following: The PUCCH retransmission capability of the terminal device; signal quality measured by the terminal device; a first threshold of the signal quality configured by the network device; A first random access resource set configured by the network device.

42. The terminal device according to claim 41, characterized in that The first condition includes one or more of the following: The signal quality measured by the terminal device is less than the first threshold; The network device is configured with a random access resource set used for PUCCH repeated transmission and a random access resource set not used for PUCCH repeated transmission; The terminal device has the capability of PUCCH repeated transmission.

43. The terminal device according to any one of claims 33 to 42, characterized in that: The terminal device further includes: A receiving unit is used to receive second information sent by the network device, where the second information is used to indicate the number of repeated transmissions of the first PUCCH.

44. The terminal device according to claim 43, characterized in that The second information is carried in a system message.

45. The terminal device according to claim 43, characterized in that The number of repeated transmissions indicated by the second information is selected from a set of repeated transmission numbers that are preconfigured or configured by the network device.

46. ​​The terminal device according to claim 45, characterized in that The set of repeated transmission times is carried in a system message; and / or the second information is carried in a first DCI.

47. The terminal device according to any one of claims 33 to 46, characterized in that: The repeated transmission of the first PUCCH includes one or more of the following: A first repeated transmission during a random access process of the terminal device; and The second repeated transmission is performed after the random access procedure ends and before the dedicated PUCCH resource is configured.

48. The terminal device according to claim 47, characterized in that The number of repeated transmissions of the second repeated transmission is determined based on one or more of the following: the number of repeated transmissions of the first repeated transmission; indication information in the second DCI; The number of PUCCH retransmissions indicated by the system message.

49. A network device, characterized in that include: Before configuring the dedicated PUCCH resources of the terminal device, the receiving unit is used to receive the first PUCCH based on repeated transmission sent by the terminal device.

50. The network device according to claim 49, wherein: The receiving unit is further configured to: Receive first information sent by the terminal device, where the first information is used to request repeated transmission of the first PUCCH and / or indicate the PUCCH repeated transmission capability of the terminal device.

51. The network device according to claim 50, characterized in that The receiving unit is further configured to: The receiving terminal device initiates a random access process through a first random access resource, where the first random access resource carries the first information.

52. The network device according to claim 51, wherein: The first random access resource belongs to a first random access resource set in a configured random access resource set, the configured random access resource set also includes a second random access resource set, the random access resources in the second random access resource set are used to carry a repeated transmission indication of message 3 PUSCH, and the first random access resource set and the second random access resource set are independently configured or associated with each other.

53. The network device according to claim 52, wherein: The association relationship between the first random access resource set and the second random access resource set satisfies one of the following: The first random access resource set is the same as the second random access resource set; The first random access resource set includes the second random access resource set; The second random access resource set includes the first random access resource set.

54. The network device according to claim 52 or 53, characterized in that: The intersection of the first random access resource set and the second random access resource set is a third random access resource set, and the random access resources in the third random access resource set are used to carry the indication of repeated transmission of the message 3 PUSCH and the first information.

55. The network device according to claim 50, wherein: The receiving unit is further configured to: Receive message 3 sent by the terminal device, where the message 3 includes the first information.

56. The network device according to claim 55, characterized in that The first information is carried in one of the following of the message 3: MAC CE, CCCH, and RRC signaling.

57. The network device according to any one of claims 50 to 56, characterized in that: Whether the first information is sent is determined based on a first condition, where the first condition is determined based on one or more of the following: The PUCCH retransmission capability of the terminal device; signal quality measured by the terminal device; a first threshold of the signal quality configured by the network device; A first random access resource set configured by the network device.

58. The network device according to claim 57, characterized in that The first condition includes one or more of the following: The signal quality measured by the terminal device is less than the first threshold; The network device is configured with a random access resource set used for PUCCH repeated transmission and a random access resource set not used for PUCCH repeated transmission; The terminal device has the capability of PUCCH repeated transmission.

59. The network device according to any one of claims 49 to 58, characterized in that: The network device further includes: A sending unit is used to send second information to the terminal device, where the second information is used to indicate the number of repeated transmissions of the first PUCCH.

60. The network device according to claim 59, wherein: The second information is carried in a system message.

61. The network device according to claim 59, wherein: The number of repeated transmissions indicated by the second information is selected from a set of repeated transmission numbers that are preconfigured or configured by the network device.

62. The network device according to claim 61, wherein: The set of repeated transmission times is carried in a system message; and / or the second information is carried in a first DCI.

63. The network device according to any one of claims 49 to 62, characterized in that: The repeated transmission of the first PUCCH includes one or more of the following: A first repeated transmission during a random access process of the terminal device; and The second repeated transmission is performed after the random access procedure ends and before the dedicated PUCCH resource is configured.

64. The network device according to claim 63, wherein: The number of repeated transmissions of the second repeated transmission is determined based on one or more of the following: the number of repeated transmissions of the first repeated transmission; indication information in the second DCI; The number of PUCCH retransmissions indicated by the system message.

65. A terminal device, characterized in that: The terminal comprises a transceiver, a memory and a processor, wherein the memory is used to store a program, and the processor is used to call the program in the memory and control the transceiver to receive or send a signal, so that the terminal executes the method according to any one of claims 1 to 16.

66. A network device, characterized in that The network device comprises a transceiver, a memory and a processor, wherein the memory is used to store a program, and the processor is used to call the program in the memory and control the transceiver to receive or send a signal so that the network device executes the method according to any one of claims 17 to 32.

67. A device, characterized in that The device comprises a processor configured to call a program from a memory so as to cause the device to execute the method according to any one of claims 1 to 32.

68. A chip, characterized in that: The device comprises a processor configured to call a program from a memory so that a device equipped with the chip executes the method according to any one of claims 1 to 32.

69. A computer-readable storage medium, characterized in that A program is stored thereon, the program causing a computer to execute the method according to any one of claims 1 to 32.

70. A computer program product, characterized in that The method comprises a program for causing a computer to execute the method according to any one of claims 1 to 32.

71. A computer program, characterized in that The computer program causes a computer to execute the method according to any one of claims 1 to 32.

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