WO2023130473A1 - 无线通信的方法、终端设备和网络设备 - Google Patents

无线通信的方法、终端设备和网络设备 Download PDF

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Publication number
WO2023130473A1
WO2023130473A1 PCT/CN2022/071119 CN2022071119W WO2023130473A1 WO 2023130473 A1 WO2023130473 A1 WO 2023130473A1 CN 2022071119 W CN2022071119 W CN 2022071119W WO 2023130473 A1 WO2023130473 A1 WO 2023130473A1
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Prior art keywords
mcs
target
parameter
pusch
indexes
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PCT/CN2022/071119
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English (en)
French (fr)
Inventor
贺传峰
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Oppo广东移动通信有限公司
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Priority to PCT/CN2022/071119 priority Critical patent/WO2023130473A1/zh
Publication of WO2023130473A1 publication Critical patent/WO2023130473A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • the embodiments of the present application relate to the communication field, and in particular to a wireless communication method, a terminal device, and a network device.
  • NR New Radio
  • URLLC ultra-reliable and low latency communication
  • a four-step random access process is supported, specifically including the sending process of message 1 (Msg1)-message 4 (Msg4).
  • the message 3 (Msg3) is carried by a physical uplink shared channel (Physical Uplink Shared Channel, PUSCH).
  • MCS Modulation and Coding Scheme
  • the present application provides a wireless communication method, a terminal device and a network device, the terminal device can determine the MCS index used to transmit the Msg3 PUSCH.
  • a wireless communication method including: a terminal device determines a target MCS for transmitting a physical downlink shared channel PUSCH according to a target modulation and coding scheme MCS parameter and a target MCS information field, wherein the target MCS parameter It is used to indicate N kinds of MCS indexes, N is a positive integer greater than 1, and the PUSCH is used to bear the third message in the random access process.
  • a wireless communication method including: a network device sends a target modulation and coding scheme MCS parameter to a terminal device, and the target MCS parameter is used to determine a target MCS for transmitting a physical downlink shared channel PUSCH, wherein the The target MCS parameter is used to indicate N kinds of MCS indexes, N is a positive integer greater than 1, and the PUSCH is used to bear the third message in the random access process.
  • a terminal device configured to execute the method in the foregoing first aspect or various implementation manners thereof.
  • the terminal device includes a functional module for executing the method in the above first aspect or its various implementation manners.
  • a network device configured to execute the method in the foregoing second aspect or various implementation manners thereof.
  • the network device includes a functional module for executing the method in the above second aspect or each implementation manner thereof.
  • a terminal device including a processor and a memory.
  • the memory is used to store a computer program
  • the processor is used to call and run the computer program stored in the memory to execute the method in the above first aspect or its various implementations.
  • a sixth aspect provides a network device, including a processor and a memory.
  • the memory is used to store a computer program
  • the processor is used to call and run the computer program stored in the memory to execute the method in the above second aspect or its various implementations.
  • a chip is provided for implementing any one of the above first aspect to the second aspect or the method in each implementation manner thereof.
  • the chip includes: a processor, configured to call and run a computer program from the memory, so that the device installed with the device executes any one of the above-mentioned first to second aspects or any of the implementations thereof. method.
  • a computer-readable storage medium for storing a computer program, and the computer program causes a computer to execute any one of the above-mentioned first to second aspects or the method in each implementation manner thereof.
  • a ninth aspect provides a computer program product, including computer program instructions, the computer program instructions cause a computer to execute any one of the above first to second aspects or the method in each implementation manner.
  • a computer program which, when running on a computer, causes the computer to execute any one of the above-mentioned first to second aspects or the method in each implementation manner.
  • the terminal device can determine the target MCS for the Msg3 PUSCH according to the target MCS parameters and the target MCS information field, so as to realize the repeated transmission of the PUSCH carrying Msg3, thereby improving the transmission performance of Msg3.
  • FIG. 1 is a schematic diagram of a communication system architecture provided by an embodiment of the present application.
  • Fig. 2 is a schematic diagram of a four-step random access process.
  • Fig. 3 is a schematic interaction diagram of a wireless communication method provided according to an embodiment of the present application.
  • Fig. 4 is a schematic block diagram of a terminal device provided according to an embodiment of the present application.
  • Fig. 5 is a schematic block diagram of a network device provided according to an embodiment of the present application.
  • Fig. 6 is a schematic block diagram of a communication device provided according to an embodiment of the present application.
  • Fig. 7 is a schematic block diagram of a chip provided according to an embodiment of the present application.
  • Fig. 8 is a schematic block diagram of a communication system provided according to an embodiment of the present application.
  • the technical solution of the embodiment of the present application can be applied to various communication systems, such as: Global System of Mobile communication (Global System of Mobile communication, GSM) system, code division multiple access (Code Division Multiple Access, CDMA) system, broadband code division multiple access (Wideband Code Division Multiple Access, WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, Advanced long term evolution (LTE-A) system , New Radio (NR) system, evolution system of NR system, LTE (LTE-based access to unlicensed spectrum, LTE-U) system on unlicensed spectrum, NR (NR-based access to unlicensed spectrum) on unlicensed spectrum unlicensed spectrum (NR-U) system, Non-Terrestrial Networks (NTN) system, Universal Mobile Telecommunications System (UMTS), Wireless Local Area Networks (WLAN), Wireless Fidelity (Wireless Fidelity, WiFi), fifth-generation communication (5th-Generation, 5G) system or other communication systems, etc.
  • GSM Global System of Mobile
  • D2D Device to Device
  • M2M Machine to Machine
  • MTC Machine Type Communication
  • V2V Vehicle to Vehicle
  • V2X Vehicle to everything
  • the communication system in the embodiment of the present application may be applied to a carrier aggregation (Carrier Aggregation, CA) scenario, may also be applied to a dual connectivity (Dual Connectivity, DC) scenario, and may also be applied to an independent (Standalone, SA) deployment Web scene.
  • Carrier Aggregation, CA Carrier Aggregation
  • DC Dual Connectivity
  • SA independent deployment Web scene
  • the communication system in the embodiment of the present application may be applied to an unlicensed spectrum, where the unlicensed spectrum may also be considered as a shared spectrum; or, the communication system in the embodiment of the present application may also be applied to a licensed spectrum, where, Licensed spectrum can also be considered as non-shared spectrum.
  • the embodiments of the present application describe various embodiments in conjunction with network equipment and terminal equipment, wherein the terminal equipment may also be referred to as user equipment (User Equipment, UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device, etc.
  • user equipment User Equipment, UE
  • access terminal user unit
  • user station mobile station
  • mobile station mobile station
  • remote station remote terminal
  • mobile device user terminal
  • terminal wireless communication device
  • wireless communication device user agent or user device
  • the terminal device can be a station (STATION, ST) in a WLAN, a cellular phone, a cordless phone, a Session Initiation Protocol (Session Initiation Protocol, SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital assistant (Personal Digital Assistant, PDA) devices, handheld devices with wireless communication functions, computing devices or other processing devices connected to wireless modems, vehicle-mounted devices, wearable devices, next-generation communication systems such as terminal devices in NR networks, or future Terminal equipment in the evolved public land mobile network (Public Land Mobile Network, PLMN) network, etc.
  • PLMN Public Land Mobile Network
  • the terminal device can be deployed on land, including indoor or outdoor, handheld, wearable or vehicle-mounted; it can also be deployed on water (such as ships, etc.); it can also be deployed in the air (such as aircraft, balloons and satellites) superior).
  • the terminal device may be a mobile phone (Mobile Phone), a tablet computer (Pad), a computer with a wireless transceiver function, a virtual reality (Virtual Reality, VR) terminal device, an augmented reality (Augmented Reality, AR) terminal Equipment, wireless terminal equipment in industrial control, wireless terminal equipment in self driving, wireless terminal equipment in remote medical, wireless terminal equipment in smart grid , wireless terminal equipment in transportation safety, wireless terminal equipment in smart city, or wireless terminal equipment in smart home.
  • a virtual reality (Virtual Reality, VR) terminal device an augmented reality (Augmented Reality, AR) terminal Equipment
  • wireless terminal equipment in industrial control wireless terminal equipment in self driving
  • wireless terminal equipment in remote medical wireless terminal equipment in smart grid
  • wireless terminal equipment in transportation safety wireless terminal equipment in smart city, or wireless terminal equipment in smart home.
  • the terminal device may also be a wearable device.
  • Wearable devices can also be called wearable smart devices, which is a general term for the application of wearable technology to intelligently design daily wear and develop wearable devices, such as glasses, gloves, watches, clothing and shoes.
  • a wearable device is a portable device that is worn directly on the body or integrated into the user's clothing or accessories. Wearable devices are not only a hardware device, but also achieve powerful functions through software support, data interaction, and cloud interaction.
  • Generalized wearable smart devices include full-featured, large-sized, complete or partial functions without relying on smart phones, such as smart watches or smart glasses, etc., and only focus on a certain type of application functions, and need to cooperate with other devices such as smart phones Use, such as various smart bracelets and smart jewelry for physical sign monitoring.
  • the network device may be a device for communicating with the mobile device, and the network device may be an access point (Access Point, AP) in WLAN, a base station (Base Transceiver Station, BTS) in GSM or CDMA , or a base station (NodeB, NB) in WCDMA, or an evolved base station (Evolutional Node B, eNB or eNodeB) in LTE, or a relay station or access point, or a vehicle-mounted device, a wearable device, and an NR network
  • BTS Base Transceiver Station
  • NodeB, NB base station
  • Evolutional Node B, eNB or eNodeB evolved base station
  • LTE Long Term Evolutional Node B, eNB or eNodeB
  • gNB network equipment in the network or the network equipment in the future evolved PLMN network or the network equipment in the NTN network, etc.
  • the network device may have a mobile feature, for example, the network device may be a mobile device.
  • the network equipment may be a satellite or a balloon station.
  • the satellite can be a low earth orbit (low earth orbit, LEO) satellite, a medium earth orbit (medium earth orbit, MEO) satellite, a geosynchronous earth orbit (geosynchronous earth orbit, GEO) satellite, a high elliptical orbit (High Elliptical Orbit, HEO) satellite. ) Satellite etc.
  • the network device may also be a base station installed on land, water, and other locations.
  • the network device may provide services for a cell, and the terminal device communicates with the network device through the transmission resources (for example, frequency domain resources, or spectrum resources) used by the cell, and the cell may be a network device ( For example, a cell corresponding to a base station), the cell may belong to a macro base station, or may belong to a base station corresponding to a small cell (Small cell), and the small cell here may include: a metro cell (Metro cell), a micro cell (Micro cell), a pico cell ( Pico cell), Femto cell, etc. These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.
  • the transmission resources for example, frequency domain resources, or spectrum resources
  • the cell may be a network device (
  • the cell may belong to a macro base station, or may belong to a base station corresponding to a small cell (Small cell)
  • the small cell here may include: a metro cell (Metro cell), a micro cell (Micro
  • the communication system 100 may include a network device 110, and the network device 110 may be a device for communicating with a terminal device 120 (or called a communication terminal, terminal).
  • the network device 110 can provide communication coverage for a specific geographical area, and can communicate with terminal devices located in the coverage area.
  • FIG. 1 exemplarily shows one network device and two terminal devices.
  • the communication system 100 may include multiple network devices and each network device may include other numbers of terminal devices within the coverage area. This application The embodiment does not limit this.
  • the communication system 100 may further include other network entities such as a network controller and a mobility management entity, which is not limited in this embodiment of the present application.
  • network entities such as a network controller and a mobility management entity, which is not limited in this embodiment of the present application.
  • a device with a communication function in the network/system in the embodiment of the present application may be referred to as a communication device.
  • the communication equipment may include a network equipment 110 and a terminal equipment 120 with communication functions.
  • the network equipment 110 and the terminal equipment 120 may be the specific equipment described above, and will not be repeated here.
  • the communication device may also include other devices in the communication system 100, such as network controllers, mobility management entities and other network entities, which are not limited in this embodiment of the present application.
  • the "indication" mentioned in the embodiments of the present application may be a direct indication, may also be an indirect indication, and may also mean that there is an association relationship.
  • a indicates B which can mean that A directly indicates B, for example, B can be obtained through A; it can also indicate that A indirectly indicates B, for example, A indicates C, and B can be obtained through C; it can also indicate that there is an association between A and B relation.
  • the term "corresponding" may indicate that there is a direct or indirect correspondence between the two, or that there is an association between the two, or that it indicates and is indicated, configuration and is configuration etc.
  • predefinition can be realized by pre-saving corresponding codes, tables or other methods that can be used to indicate related information in devices (for example, including terminal devices and network devices).
  • the implementation method is not limited.
  • pre-defined may refer to defined in the protocol.
  • the "protocol” may refer to a standard protocol in the communication field, for example, it may include the LTE protocol, the NR protocol, and related protocols applied in future communication systems, which is not limited in the present application.
  • the network device sends an uplink grant (UL grant), which is carried in the downlink control information (Downlink Control Information, DCI), the DCI is DCI (format) format 0_0, or DCI format 0_1, scheduling physical uplink Shared channel (Physical Uplink Shared Channel, PUSCH) transmission.
  • UL grant downlink control information
  • DCI Downlink Control Information
  • the DCI is DCI (format) format 0_0, or DCI format 0_1, scheduling physical uplink Shared channel (Physical Uplink Shared Channel, PUSCH) transmission.
  • DCI Downlink Control Information
  • TDRA Time Domain Resource Allocation
  • the TDRA field is 4 bits and can indicate 16 different time domain resource allocation tables in a time domain resource allocation table. Each row contains different resource allocation combinations, such as the starting position S of the PUSCH, the length L, k2, and different mapping types (type). Wherein, k2 represents the number of slots offset between the time slot (slot) where the DCI is located and the slot where the PUSCH is located.
  • the type of time domain resource allocation of PUSCH includes Type A (Type A) and Type B (Type B). The difference between Type A and Type B lies in the different value ranges of the corresponding S and L candidate values.
  • Type A is mainly for slot-based services, S is relatively front, and L is relatively long.
  • Type B is mainly for ultra-reliable and low-latency communication (Ultra-Reliable and Low Latency Communication, URLLC) services, and has higher requirements on delay, so the location of S is more flexible to transmit URLLC services that arrive at any time.
  • L is shorter and can be Reduce transmission delay.
  • the optional value ranges of S and L are shown in Table 1 below.
  • the DCI carrying the UL grant also includes frequency domain resource information, MCS, power control command (Transmission Power Control, TPC), frequency hopping information, redundancy version, hybrid automatic request for retransmission ( Hybrid Automatic Repeat reQuest, HARQ) process number, etc., will not be described here.
  • a four-step random access process is supported, specifically including the sending process of message 1 (Msg1)-message 4 (Msg4).
  • the four-step random access process includes the following steps:
  • Step 1 the terminal device sends a random access preamble (Preamble, that is, Msg 1) to the network device.
  • Preamble that is, Msg 1
  • the random access preamble may also be referred to as a preamble, a random access preamble sequence, a preamble sequence, and the like.
  • the terminal device may select physical random access channel (Physical Random Access Channel, PRACH) resources, and the PRACH resources may include time domain resources, frequency domain resources, and code domain resources.
  • the network device sends random access related parameters to the terminal device through the broadcast system information block (System Information Block, SIB) 1, wherein the random access public configuration information element (RACH-ConfigCommon IE) for the synchronization signal block (Synchronization Signal Block,
  • the reference signal receiving power (Reference Signal Receiving Power, RSRP) threshold value (rsrp-ThresholdSSB) of SSB) is used for terminal equipment to carry out SSB selection, and terminal equipment compares the RSRP measurement result under each SSB with rsrp-ThresholdSSB, selects The SSB whose measurement value is higher than the configured threshold value is accessed, and if there is no SSB meeting the configured threshold value, one of all SSBs is randomly selected for access.
  • SIB System Information Block
  • Each SSB corresponds to a set of random access preamble (Preamble) resources and random access opportunity (RACH Occasion, RO) resources, and the terminal device randomly selects from the contention-based random access resources in the selected SSB, Set the Preamble index (PREAMBLE_INDEX) to the selected random access Preamble.
  • the network device can estimate the transmission delay between itself and the terminal device according to the Preamble and use this to calibrate the uplink timing (timing), and can generally determine the resource size required by the terminal device to transmit Msg 3 .
  • the Preamble is divided into Preamble group (group) A and Preamble group B. If there is Preamble group B in the random access resource, The terminal device can select the Preamble group according to the size of Msg 3 and the path loss.
  • Step 2 the network device sends a random access response (Random Access Response, RAR, or Msg 2) to the terminal device
  • a random access response window (ra-ResponseWindow) can be opened, and in the ra-ResponseWindow, it is detected according to the Random Access Radio Network Temporary Identifier (RA-RNTI) Corresponding Physical Downlink Control Channel (PDCCH). If the terminal device detects the PDCCH scrambled by the RA-RNTI, it can obtain the Physical Downlink Shared Channel (PDSCH) scheduled by the PDCCH. Wherein, the PDSCH includes the RAR corresponding to the Preamble.
  • RA-RNTI Random Access Radio Network Temporary Identifier
  • PDCCH Physical Downlink Control Channel
  • RA-RNTI is calculated based on the time-frequency position of the PRACH that sends the Preamble, so if multiple terminal devices send the Preamble on the same RO, the corresponding RARs are multiplexed in the same RAR Media Access Control Protocol Data Unit (Media Access Control Protocol Data Unit (MAC) Protocol Data Unit, MAC PDU).
  • Media Access Control Protocol Data Unit Media Access Control Protocol Data Unit (MAC) Protocol Data Unit, MAC PDU).
  • the terminal If the terminal successfully receives the RA-RNTI scrambled PDCCH corresponding to the RO resource that sent the Preamble, and the RAR contains a MAC sub-PDU (subPDU) carrying a random access sequence identifier (Random Access Preamble Identifier, RAPID) and the above If the PREAMBLE_INDEX selected in Msg 1 corresponds, the RAR reception is successful, and the terminal can decode the timing advance command (Timing Advance Command, TAC), uplink authorization resource (UL Grant) and temporary cell RNTI (Temporary Cell Radio Network Temporary Identity, TC- RNTI), proceed to Msg 3.
  • TAC Timing Advance Command
  • UL Grant uplink authorization resource
  • temporary cell RNTI Temporary Cell Radio Network Temporary Identity
  • the terminal device needs to retransmit Msg 1. If the number of transmissions of the Preamble exceeds the network configuration The maximum number of transmissions (preambleTransMax), the terminal device reports the random access problem to the upper layer.
  • Step 3 the terminal device sends Msg 3.
  • the terminal device judges whether the RAR is its own RAR message. For example, the terminal device can use the preamble index to check. After determining that it is its own RAR message, it can generate Msg 3 at the RRC layer, and Send Msg 3 to the network device, which needs to carry the identification information of the terminal device, etc.
  • Msg 3 is mainly used to notify the trigger event of the random access to the network device.
  • the Msg 3 sent by the terminal device in step 3 may include different contents.
  • Msg 3 may include an RRC connection request message (RRC Setup Request) generated by the RRC layer.
  • RRC Setup Request RRC Setup Request
  • Msg 3 may also carry, for example, the 5G-Serving Temporary Mobile Subscriber Identity (Serving-Temporary Mobile Subscriber Identity, S-TMSI) or random number of the terminal device.
  • S-TMSI Serving-Temporary Mobile Subscriber Identity
  • Msg 3 may include an RRC connection reestablishment request message (RRC Reestabilshment Request) generated by the RRC layer.
  • RRC Reestabilshment Request RRC connection reestablishment request message
  • Msg 3 may also carry, for example, a Cell Radio Network Temporary Identifier (C-RNTI) and the like.
  • C-RNTI Cell Radio Network Temporary Identifier
  • Msg 3 may include an RRC handover confirmation message (RRC Handover Confirm) generated by the RRC layer, which carries the C-RNTI of the terminal device.
  • RRC Handover Confirm RRC handover confirmation message
  • Msg 3 may also carry information such as a buffer status report (Buffer Status Report, BSR).
  • BSR Buffer Status Report
  • Msg 3 may at least include the C-RNTI of the terminal device.
  • Step 4 the network device sends a contention resolution message (contention resolution), namely Msg 4, to the terminal device.
  • a contention resolution message contention resolution
  • the network device sends Msg 4 to the terminal device, and the terminal device correctly receives Msg 4 to complete contention resolution.
  • Msg 4 may carry the RRC connection establishment message.
  • message 3 is carried by Physical Uplink Shared Channel (PUSCH)
  • the RAR in Msg2 carries the UL grant of PUSCH for the initial transmission of Msg3
  • the UL grant carried in RAR is called RAR UL grant .
  • the information carried by the RAR UL grant information may include PUSCH time domain and frequency domain resource allocation information, power control command TPC, frequency hopping, and MCS, etc.
  • the network device If the network device does not receive Msg3 correctly, it will indicate the retransmission scheduling information of Msg3 through DCI, for example, the DCI format 0_0 bearer scrambled by Temporary Cell Radio Network Temporary Identity (TC-RNTI), In addition to the content contained in RAR UL grant, it also includes New Data Indicator (NDI), redundancy version, and HARQ process number.
  • DCI for example, the DCI format 0_0 bearer scrambled by Temporary Cell Radio Network Temporary Identity (TC-RNTI), In addition to the content contained in RAR UL grant, it also includes New Data Indicator (NDI), redundancy version, and HARQ process number.
  • TC-RNTI Temporary Cell Radio Network Temporary Identity
  • the repeated transmission of Msg3 PUSCH is introduced, and the base station needs to indicate the number of repeated transmissions of Msg3 PUSCH.
  • the number of repeated transmissions may be indicated by the most significant 2 bits in the MCS information field in the RAR UL grant.
  • the 4 bits of the MCS information field in the RAR UL grant indicate the first 16 MCS indexes in the MCS table shown in Table 2.
  • the MCS level used for Msg 3 PUSCH transmission is also limited. Therefore, consider using some bits in the MCS information field to indicate the number of repeated transmissions of the Msg3 PUSCH.
  • the scheduling information of Msg3 PUSCH is carried by RAR UL grant, and the scheduling information includes a 4-bit MCS information field.
  • the highest 2 bits of the 4-bit MCS information field are used to indicate 4 types of repeated transmission times, and the lowest 2 bits of the original MCS information field are used to indicate the MCS index, and at this time, 4 types of MCS indexes are indicated.
  • the most significant 2 bits of the MCS information field may indicate one kind of repeated transmission times in a set including four kinds of repeated transmission times.
  • the set of repeated transmission times may be configured by the network device through a system message. If the network device is not configured with a set of repeated transmission times, the default set of repeated transmission times may be ⁇ 1, 2, 3, 4 ⁇ .
  • the scheduling information of Msg3 PUSCH is carried by DCI format 0_0 of TC-RNTI scrambled CRC.
  • the scheduling information includes a 5-bit MCS information field. Therefore, for the initial transmission and retransmission of Msg3 PUSCH, the number of bits in the MCS information field is different. In this case, how to indicate the MCS index and/or the number of repeated transmissions used for Msg3 PUSCH is an urgent problem to be solved.
  • FIG. 3 is a schematic interaction diagram of a wireless communication method 300 according to an embodiment of the present application. As shown in FIG. 3 , the method 300 includes at least part of the following content:
  • the terminal device determines a target MCS for transmitting the physical downlink shared channel PUSCH according to the target MCS parameter and the target MCS information field, where the target MCS parameter is used to indicate N types of MCS indexes, and N is a positive integer greater than 1,
  • the PUSCH is used to carry the third message in the random access process.
  • the PUSCH used to carry Msg3 may also be called Msg3 PUSCH.
  • the target MCS information field may be the first MCS information field carried in the RAR uplink grant.
  • the RAR UL grant is used to schedule the initial transmission of Msg3 PUSCH. That is, in the initial transmission scenario of Msg3 PUSCH, the target MCS information field may be the first MCS information field.
  • the target MCS information field may be the second information field carried in TC-RNTI scrambled DCI format 0_0.
  • the TC-RNTI scrambled DCI format 0_0 is used to schedule the retransmission of Msg3 PUSCH. That is, in the retransmission scenario of Msg3 PUSCH, the target MCS information field may be the second MCS information field.
  • the first MCS information field is 4 bits, and the second MCS information field is 5 bits.
  • some bits in the first MCS information field are used to indicate the number of repeated transmission times of the initial Msg3 PUSCH. For example, the highest 2 bits in the first MCS information field are used to indicate the number of repeated transmission times of the initial Msg3 PUSCH.
  • some bits in the second MCS information field are used to indicate the repeated transmission times information of retransmitting the Msg3 PUSCH.
  • the highest 2 bits in the second MCS information field are used to indicate the retransmission times information of the Msg3 PUSCH.
  • the terminal device may determine the target repeated transmission times according to the 2 bits in the first MCS information field or the second MCS information field and the set of target repeated transmission times.
  • the set of target repeated transmission times includes K pieces of repeated transmission times information. As an example, K is 4.
  • the 2 bits are used to indicate the order of the target repeated transmission times in the K pieces of repeated transmission times information.
  • a value of 2 bits is 0, indicating that the target number of repeated transmissions is the first number of repeated transmissions in the K repeated transmissions information, and a value of 1 indicates that the target number of repeated transmissions is the K repeated transmissions The second repeat transmission count in the message, and so on.
  • the set of target repeated transmission times may be one of X sets of repeated transmission times, where X is a positive integer.
  • the set of target repeated transmission times may be configured by the network device, for example, configured through a system message.
  • the network device is configured through PUSCH common configuration information (pusch-ConfigCommon).
  • X can be 4.
  • the X sets of repeated transmission times may be predefined, or configured by the network device, for example, configured through a system message.
  • the terminal device may determine the target according to the 2 bits in the first MCS information field or the second MCS information field and the default set of repeated transmission times.
  • the number of repeated transfers may be determined.
  • the default repeated transmission times set includes P pieces of repeated transmission times information, and P is a positive integer.
  • the default retransmission count set is ⁇ 1,2,3,4 ⁇ .
  • the 2 bits are used to indicate the order of the default repeated transmission times in the P pieces of repeated transmission times information.
  • the target number of repeated transmissions is the first number of repeated transmissions in the information on the number of times of P repeated transmissions; if the value is 1, it means that the number of target repeated transmissions is the first number of repeated transmissions in the information on the number of times of P repeated transmissions. Two repeat transmission times, and so on.
  • the target bits in the first MCS information field are used to determine The target MCS of the initial transmission of Msg3 PUSCH.
  • the lowest 2 bits in the first MCS information field are used to indicate 4 kinds of MCS indexes (index), and the 4 kinds of MCS indexes can be configured by the network device through the MCS parameter (mcs-Msg3Repetition) for repeated transmission of Msg3 of.
  • MCS parameter mcs-Msg3Repetition
  • the four MCS indexes take default values 0-3.
  • At least one of the target bits in the second MCS information field (that is, other bits in the second MCS information field except for the 2 bits used to indicate the number of repeated transmissions, such as the lowest 3 bits)
  • Some bits are used to determine the target MCS for retransmitting Msg3 PUSCH. That is, for the retransmission scenario of Msg3 PUSCH, up to 8 MCS indexes can be indicated. In this case, how to indicate the target MCS for retransmitting the Msg3 PUSCH is an urgent problem to be solved.
  • the network device and the terminal device have the same understanding of the target MCS.
  • the network device can set the value of the target bit in the target MCS information field according to the target MCS parameter to indicate the target MCS to the terminal device.
  • the MCS index correspondingly, the terminal device can interpret the value of the target bit in the target MCS information field according to the target MCS parameter, so as to determine the target MCS index indicated by the network device.
  • an MCS index set dedicated to retransmitting the Msg3 PUSCH can be designed.
  • the terminal device can determine the target MCS for retransmitting Msg3 PUSCH according to the target bits in the MCS information field and the MCS index set used for retransmitting Msg3 PUSCH.
  • the target MCS parameter includes a first MCS parameter, where the first MCS parameter is an MCS parameter dedicated to retransmitting the PUSCH.
  • the first MCS parameter is recorded as mcs-Msg3Repetition-Re-1.
  • the first MCS parameter may be configured by a network device, for example, configured through radio resource control (Radio Resource Control, RRC) signaling.
  • RRC Radio Resource Control
  • the number of MCS indexes indicated by the first MCS parameter is determined according to the number of MCS indexes that can be indicated by the target bits in the second MCS information field.
  • the target bits are 3 bits
  • the first MCS parameter is used to indicate 8 types of MCS indexes.
  • S210 may include:
  • the target MCS for retransmitting the PUSCH according to the target bits (for example, the lowest 3 bits) in the first MCS information field and the eight MCS indexes indicated by the first MCS parameter, wherein the 3 bits are used to indicate the target MCS index among the 8 kinds of MCS indexes.
  • the MCS indicated by the target MCS index is the target MCS for retransmitting the Msg3 PUSCH.
  • the value of the target bit is used to indicate the sequence of the target MCS index among the eight types of MCS indexes.
  • a value of 000 for the target bit indicates that the target MCS index is the first MCS index among the eight types of MCS indices
  • a value of 001 indicates that the target MCS index is the second MCS index among the eight types of MCS indices.
  • a value of 010 indicates that the target MCS index is the third MCS index among the eight types of MCS indexes, and so on.
  • Embodiment 1-2
  • the target MCS parameters include first default MCS parameters, where the first default MCS parameters are default MCS parameters dedicated to retransmitting the PUSCH.
  • independent default MCS parameters are used for initial transmission and retransmission of Msg3 PUSCH.
  • the default MCS parameter used for the initial transmission of Msg3 PUSCH may indicate 4 kinds of MCS indexes, and the default value is 0-3.
  • the number of MCS indexes indicated by the first default MCS parameter is determined according to the number of MCS indexes that can be indicated by the target bits in the second MCS information field.
  • the target bits are 3 bits
  • the first default MCS parameter is used to indicate 8 kinds of MCS indexes.
  • the value range of the eight MCS indexes is 0-7.
  • S210 may include:
  • the target bit for example, the lowest 3 bits
  • the target MCS information field for example, the lowest 3 bits
  • the eight kinds of MCS indexes indicated by the first default MCS parameter determine The target MCS used for retransmitting the PUSCH, wherein the 3 bits are used to indicate the target MCS index among the eight types of MCS indexes.
  • the MCS indicated by the target MCS index is the target MCS for retransmitting the PUSCH.
  • the target bit is used to indicate the order of the target MCS index among the eight types of MCS indexes indicated by the first default MCS parameter.
  • the value of the target bit is 000, indicating that the target MCS index is MCS index 0 among the eight MCS indexes indicated by the first default MCS parameter, A value of 001 indicates that the target MCS index is MCS index 1 among the eight MCS indices indicated by the first default MCS parameter, and a value of 010 indicates that the target MCS index is the first default MCS index indicated by the first default MCS parameter.
  • MCS index 2 among the indicated 8 MCS indexes, and so on.
  • Table 2 shows the corresponding relationship between the values of the least significant 3 bits of the second MCS information field and the eight indicated MCS index I MCSs .
  • the MCS index sets used for initial transmission and retransmission of Msg3 PUSCH are the same set, and the number of MCS indexes included in the MCS index set is based on the MCS index that can be indicated by the retransmission Msg3 PUSCH The number of indexes is determined.
  • the network device does not need to configure a dedicated MCS index set for the retransmission of Msg3 PUSCH, which is beneficial to reduce signaling overhead.
  • the 2 bits in the first MCS information field are used to indicate the MCS index of the initial transmission of Msg3 PUSCH, and can indicate up to 4 types of MCS indexes.
  • the 3 bits in the second MCS information field are used to indicate the MCS index of the retransmitted Msg3 PUSCH, and at most 8 types of MCS indexes can be indicated.
  • the MCS index set used for initial transmission and retransmission of Msg3 PUSCH can be designed to indicate 8 kinds of MCS indexes.
  • the target MCS parameter includes a second MCS parameter, where the second MCS parameter is an MCS parameter used for initial transmission and retransmission of the PUSCH.
  • the second MCS parameter is an MCS parameter used for initial transmission and retransmission of the PUSCH.
  • mcs-Msg3Repetition-Re-2 mcs-Msg3Repetition-Re-2.
  • the second MCS parameter may be configured by a network device, such as through RRC signaling.
  • the second MCS parameter is used to indicate 8 kinds of MCS indexes.
  • S210 may include:
  • the target bit is used to indicate the target MCS index among the eight kinds of MCS indexes.
  • the MCS indicated by the target MCS index is the target MCS for retransmitting the PUSCH.
  • the target bit is used to indicate the sequence of the target MCS index among the eight types of MCS indexes.
  • a value of 000 for the target bit indicates that the target MCS index is the first MCS index among the eight types of MCS indices
  • a value of 001 indicates that the target MCS index is the second MCS index among the eight types of MCS indices.
  • a value of 010 indicates that the target MCS index is the third MCS index among the eight types of MCS indexes, and so on.
  • the terminal device for the initial transmission of Msg3 PUSCH, only uses 4 kinds of MCS indexes in the 8 kinds of MCS indexes indicated by the second MCS parameter.
  • the first 4 kinds of MCS indexes As an example and not a limitation, the first 4 kinds of MCS indexes .
  • S210 may include:
  • the target bit for example, the lowest 2 bits
  • the target bit is used to indicate a target MCS index in the first four types of MCS indexes.
  • the MCS indicated by the target MCS index is the target MCS for initial transmission of the PUSCH.
  • the value of the target bit is used to indicate the order of the target MCS index among the first four types of MCS indexes. For example, a value of 00 for the target bit indicates that the target MCS index is the first MCS index among the first four MCS indices, and a value of 01 indicates that the target MCS index is the second MCS index among the first four MCS indices. MCS index, a value of 10 indicates that the target MCS index is the third MCS index in the first four MCS indexes, and so on.
  • the target MCS parameters include second default MCS parameters, where the second default MCS parameters are default MCS parameters used for initial transmission and retransmission of the PUSCH.
  • the same default MCS parameter is used for the initial transmission and retransmission of Msg3 PUSCH.
  • the second default MCS parameter is used to indicate 8 types of MCS indexes.
  • the value range of the eight MCS indexes is 0-7.
  • S210 may include:
  • the second MCS parameter is not configured, according to the target bit (for example, the lowest 3 bits) in the second MCS information field and the eight kinds of MCS indexes indicated by the second default MCS parameter, determine A target MCS for retransmitting the PUSCH, wherein the target bit is used to indicate a target MCS index among the eight types of MCS indexes.
  • the target bit for example, the lowest 3 bits
  • the MCS indicated by the target MCS index is the target MCS for retransmitting the PUSCH.
  • the target bit is used to indicate the sequence of the target MCS index among the eight types of MCS indexes.
  • the value of the target bit is 000, indicating that the target MCS index is MCS index 0 among the eight kinds of MCS indexes, and the value of 001 indicates that the target MCS is all
  • the MCS index 1 in the above 8 kinds of MCS indexes takes the value of 010, the MCS index 2 in the 8 kinds of MCS indexes, and so on.
  • the terminal device for the initial transmission of Msg3 PUSCH, only uses 4 types of MCS indexes among the 8 types of MCS indexes indicated by the second default MCS parameter, as an example, the first 4 types of MCS indexes.
  • S210 may include:
  • the target bit for example, the lowest 2 bits
  • the first 4 MCS indexes among the 8 kinds of MCS indexes indicated by the second default MCS parameter
  • the value of the 2 bits is 00 indicating that the target MCS index is MCS index 0 among the first four types of MCS indexes, and the value of 01 is indicating the target MCS index is MCS index 1 in the first four types of MCS indexes, and a value of 10 indicates that the target MCS index is MCS index 2 in the first four types of MCS indexes, and so on.
  • Table 3 shows the correspondence between the values of the lowest 2 bits in the first MCS information field and the lowest 3 bits in the second MCS information field and the indicated 8 MCS index I MCSs .
  • the MCS index sets used for initial transmission and retransmission of Msg3 PUSCH are the same set, and the number of MCS indexes included in the MCS index set is based on the number of MCS indexes required for the initial transmission of Msg3 PUSCH.
  • the MCS index number is determined. In this way, the network device does not need to configure a dedicated MCS index set for the retransmission of Msg3 PUSCH.
  • the target MCS parameter includes a third MCS parameter, wherein the third MCS parameter is an MCS parameter used for initial transmission and retransmission of the PUSCH. Denote it as mcs-Msg3Repetition-3.
  • the third MCS parameter is used to indicate 4 kinds of MCS indexes.
  • Embodiment 3-1 The retransmission scenario of Msg3 PUSCH needs to indicate 8 kinds of MCS indexes.
  • S210 may include:
  • the 3 bits are used to indicate 8 kinds of MCS indexes, 4 kinds of MCS indexes in the 8 kinds of MCS indexes are determined directly according to the MCS indexes indicated by the third MCS parameter, and the other 4 kinds of MCS indexes can be determined according to At least one MCS index among the four MCS indexes indicated by the third MCS parameter and a specific offset are determined.
  • the first four types of MCS indexes (that is, the first to fourth types of MCS indexes) among the eight types of MCS indexes correspond to the four types of MCS indexes indicated by the third MCS parameter, and the last four types of the eight types of MCS indexes
  • the types of MCS indexes (that is, the fifth to eighth types of MCS indexes) are determined according to at least one of the four types of MCS indexes indicated by the third MCS parameter.
  • the first four MCS indexes may refer to the MCS indexes indicated by the 3-bit values 000-011, and the latter four MCS indexes may refer to the MCS indexes indicated by the 3-bit values 100-111.
  • the last four kinds of MCS indexes among the eight kinds of MCS indexes are determined according to the fourth kind of MCS indexes among the four kinds of MCS indexes indicated by the third MCS parameter and four different offsets, wherein the Each of the four offsets corresponds to one of the last four MCS indexes. That is, the latter four types of MCS indexes may be determined by adding different offsets on the basis of the fourth type of MCS indexes. For example, the four offsets may be 1, 2, 3, and 4 respectively. That is, the fifth to eighth MCS indexes can be obtained by adding 1, 2, 3, and 4 to the fourth MCS index respectively.
  • S210 may include:
  • one bit other than the two bits in the target bits is a spare bit.
  • the other 1 bit and the other 2 bits in the MCS information field except the 3 bits are used to indicate the target number of repeated transmissions for transmitting the PUSCH.
  • the set of target repeated transmission times may include 8 kinds of repeated transmission times information.
  • the set of target repeated transmission times including eight kinds of repeated transmission times may be configured by the network device through a system message.
  • a default set of repeated transmission times may be used to determine the target repeated transmission times, where the default set of repeated transmission times may include 8 types of repeated transmission number information.
  • the set of default repeated transmission times is ⁇ 1, 2, 3, 4, 7, 8, 12, 16 ⁇ .
  • the target MCS parameters include third default MCS parameters, wherein the third default MCS parameters are default MCS parameters used for initial transmission and retransmission of the PUSCH.
  • the same default MCS parameter is used for the initial transmission and retransmission of Msg3 PUSCH.
  • the third default MCS parameter is used to indicate 8 kinds of MCS indexes, and the value range of the 8 kinds of MCS indexes is 0-7.
  • S210 may include:
  • the third MCS parameter is not configured, according to the target bit (for example, the lowest 3 bits) in the second MCS information field and the 8 kinds of MCS indexes indicated by the third default MCS parameter, determine A target MCS for retransmitting the PUSCH, wherein the target bit is used to indicate a target MCS index among the eight types of MCS indexes.
  • the target bit for example, the lowest 3 bits
  • the MCS indicated by the target MCS index is the target MCS for retransmitting the PUSCH.
  • the value of the target bit is used to indicate the sequence of the target MCS index among the eight types of MCS indexes.
  • the value of the target bit is 000, indicating that the target MCS index is MCS index 0 among the eight kinds of MCS indexes, and the value of 001 indicates that the target MCS is all
  • the MCS index 1 in the above 8 kinds of MCS indexes takes the value of 010, the MCS index 2 in the 8 kinds of MCS indexes, and so on.
  • the terminal device for the initial transmission of Msg3 PUSCH, only uses 4 types of MCS indexes among the 8 types of MCS indexes indicated by the third default MCS parameter, for example, the first 4 types of MCS indexes.
  • S210 may include:
  • the target bit for example, the lowest 2 bits
  • the first 4 MCS indexes among the 8 kinds of MCS indexes indicated by the third default MCS parameter
  • the value of the 2 bits is 00 indicating that the target MCS index is MCS index 0 among the first four types of MCS indexes, and the value of 01 is indicating the target MCS index is MCS index 1 in the first four types of MCS indexes, and a value of 10 indicates that the target MCS index is MCS index 2 in the first four types of MCS indexes, and so on.
  • Embodiment 3-3 is a diagrammatic representation of Embodiment 3-3.
  • the target MCS parameters include fourth default MCS parameters, wherein the fourth default MCS parameters are default MCS parameters for retransmitting the PUSCH.
  • the initial transmission and retransmission of the Msg3 PUSCH adopt independent default MCS parameters.
  • the third default MCS parameter is used to indicate 8 kinds of MCS indexes, and the value range of the 8 kinds of MCS indexes is 0-7.
  • the default MCS parameter used for the initial transmission of Msg3 PUSCH may indicate 4 kinds of MCS indexes, and the default value is 0-3.
  • S210 may include:
  • the third MCS parameter is not configured, according to the target bit (for example, the lowest 3 bits) in the second MCS information field and the eight kinds of MCS indexes indicated by the fourth default MCS parameter, determine A target MCS for retransmitting the PUSCH, wherein the target bit is used to indicate a target MCS index among the eight types of MCS indexes.
  • the target bit for example, the lowest 3 bits
  • the MCS indicated by the target MCS index is the target MCS for retransmitting the PUSCH.
  • the value of the target bit is used to indicate the sequence of the target MCS index among the eight types of MCS indexes.
  • the value of the target bit is 000, indicating that the target MCS index is MCS index 0 among the eight kinds of MCS indexes, and the value of 001 indicates that the target MCS is all
  • the MCS index 1 in the above 8 kinds of MCS indexes takes the value of 010, the MCS index 2 in the 8 kinds of MCS indexes, and so on.
  • Embodiment 3-4 is a diagrammatic representation of Embodiment 3-4.
  • the target MCS parameters include fifth default MCS parameters, wherein the fifth default MCS parameters are default MCS parameters used for initial transmission and retransmission of the PUSCH.
  • the same default MCS parameter is used for the initial transmission and retransmission of Msg3 PUSCH.
  • the fifth default MCS parameter is used to indicate 4 kinds of MCS indexes, and the value range of the 4 kinds of MCS indexes is 0-4.
  • S210 may include:
  • the third MCS parameter is not configured, according to the target bit (for example, the lowest 3 bits) in the second MCS information field and the 4 kinds of MCS indexes indicated by the fifth default MCS parameter, determine A target MCS for retransmitting the PUSCH, wherein the target bit is used to indicate a target MCS index among the four types of MCS indexes.
  • the target bit for example, the lowest 3 bits
  • the target bit is used to indicate a target MCS index among the four types of MCS indexes.
  • S210 may include:
  • the third MCS parameter is not configured, according to 2 bits of the target bits (for example, the lowest 3 bits) in the second MCS information field and the 4 types indicated by the fifth default MCS parameter
  • the MCS index determines the target MCS for retransmitting the PUSCH.
  • one bit other than the two bits in the target bits is a spare bit.
  • the other 1 bit and the other 2 bits in the MCS information field except the 3 bits are used to indicate the target number of repeated transmissions for transmitting the PUSCH.
  • the set of target repeated transmission times may include 8 kinds of repeated transmission times information.
  • the set of target repeated transmission times including eight kinds of repeated transmission times may be configured by the network device through a system message.
  • a default set of repeated transmission times may be used to determine the target repeated transmission times, where the default set of repeated transmission times may include 8 types of repeated transmission number information.
  • the set of default repeated transmission times is ⁇ 1, 2, 3, 4, 7, 8, 12, 16 ⁇ .
  • the design of the default MCS parameters in this embodiment 3 can also be applied to the foregoing embodiments 1 and 2, for example, when the parameter configured by the network device is the first MCS parameter or the second MCS parameter, use
  • the default MCS parameters of the PUSCH for initial transmission or retransmission may adopt any of the methods in Embodiment 3-2 to Embodiment 3-4, which is not limited in this application.
  • the target MCS parameter as the third MCS parameter or the third default MCS parameter or the fourth default MCS parameter as an example
  • Table 4 shows the corresponding relationship between the value of and the indicated 8 kinds of MCS index I MCS .
  • independent MCS parameters or default MCS parameters can be configured for the retransmission of Msg3 PUSCH, or common MCS parameters or default MCS parameters can also be configured for the retransmission and initial transmission of Msg3 PUSCH
  • the target MCS can be determined according to the MCS information field corresponding to the retransmission of the Msg3 PUSCH in combination with the MCS parameter or the default MCS parameter, which is conducive to realizing the repeated transmission of the PUSCH carrying Msg3, thereby improving the transmission performance of Msg3.
  • Fig. 4 shows a schematic block diagram of a terminal device 400 according to an embodiment of the present application.
  • the terminal device 400 includes:
  • the processing unit 410 is configured to determine a target MCS for transmitting a physical downlink shared channel PUSCH according to a target modulation and coding scheme MCS parameter and a target MCS information field, wherein the target MCS parameter is used to indicate N types of MCS indexes, and N is greater than is a positive integer of 1, and the PUSCH is used to carry the third message in the random access process.
  • the target MCS information field is the first MCS information field carried in the random access response RAR uplink grant;
  • the target MCS information field is the second MCS information field in the downlink control information DCI format 0_0 scrambled by the temporary cell radio network temporary identifier TC-RNTI.
  • the target MCS parameters include first MCS parameters or first default MCS parameters, wherein the first MCS parameters are MCS parameters dedicated to retransmitting the PUSCH, and the first default The MCS parameter is a default MCS parameter dedicated to retransmitting the PUSCH.
  • the first MCS parameter is used to indicate 8 types of MCS indexes.
  • the first default MCS parameter is used to indicate 8 kinds of MCS indexes, and the value range of the 8 kinds of MCS indexes is 0-7.
  • processing unit 410 is further configured to:
  • the first MCS parameter determines the target for retransmitting the PUSCH according to the 3 bits in the second MCS information field and the eight MCS indexes indicated by the first default MCS parameter MCS, wherein the 3 bits are used to indicate the target MCS index among the 8 types of MCS indexes.
  • the target MCS parameters include second MCS parameters or second default MCS parameters, wherein the second MCS parameters are MCS parameters used for initial transmission and retransmission of the PUSCH, and the first The second default MCS parameter is the default MCS parameter used for initial transmission and retransmission of the PUSCH.
  • the second MCS parameter is used to indicate 8 kinds of MCS indexes.
  • the second default MCS parameter is used to indicate 8 kinds of MCS indexes, and the value range of the 8 kinds of MCS indexes is 0-7.
  • processing unit 410 is further configured to:
  • the target MCS for retransmitting the PUSCH, where the 3 bits are used to indicate the 8 types of the target MCS index in the MCS index;
  • the second MCS parameter determines the target for retransmitting the PUSCH according to the 3 bits in the second MCS information field and the eight MCS indexes indicated by the second default MCS parameter MCS, wherein the 3 bits are used to indicate the target MCS index among the 8 types of MCS indexes.
  • processing unit 410 is further configured to:
  • the target MCS for initial transmission of the PUSCH, wherein the 2 bits used to indicate the target MCS index among the first four MCS indexes;
  • the second MCS parameter is not configured, determine the The target MCS used for the initial transmission of the PUSCH, wherein the 2 bits are used to indicate the target MCS index in the first 4 types of MCS indexes.
  • the target MCS parameter includes a third MCS parameter, a third default MCS parameter or a fourth default MCS parameter, wherein the third MCS parameter is used for initial transmission and retransmission of the PUSCH MCS parameters, the third default MCS parameter is the default MCS parameter used for initial transmission and retransmission of the PUSCH, or, the fourth default MCS parameter is the default MCS parameter dedicated to retransmission of the PUSCH MCS parameters.
  • the third MCS parameter is used to indicate 4 kinds of MCS indexes.
  • the third default MCS parameter is used to indicate 8 kinds of MCS indexes, and the value range of the 8 kinds of MCS indexes is 0 to 7; or
  • the fourth default MCS parameter is used to indicate 8 kinds of MCS indexes, and the value range of the 8 kinds of MCS indexes is 0-7.
  • processing unit 410 is further configured to:
  • the third MCS parameter is not configured, according to the 3 bits in the second MCS information field and the eight kinds of MCS indexes indicated by the third default MCS parameter or the fourth default MCS parameter , to determine the target MCS for retransmitting the PUSCH.
  • the 3 bits are used to indicate 8 kinds of MCS indexes
  • the first 4 kinds of MCS indexes in the 8 kinds of MCS indexes correspond to the 4 kinds of MCS indexes indicated by the third MCS parameter
  • the 8 kinds of MCS indexes The last four types of MCS indexes among the MCS indexes are determined according to at least one type of MCS indexes among the four types of MCS indexes indicated by the third MCS parameter.
  • the last four types of MCS indexes among the eight types of MCS indexes are determined according to the fourth type of MCS index among the four types of MCS indexes indicated by the third MCS parameter and four different offsets, Wherein, each of the four offsets corresponds to one of the last four MCS indexes.
  • processing unit 410 is further configured to:
  • the third MCS parameter is not configured, neutralize the eight types of MCS indicated by the third default MCS parameter or the fourth default MCS parameter according to the 3 bits in the second MCS information field Index to determine the target MCS for retransmitting the PUSCH.
  • the other 1 bit in the 3 bits except the 2 bits is a spare bit, or the other 1 bit and the other 2 bits in the MCS information field except the 3 bits It is used to indicate the target repeated transmission times for transmitting the PUSCH, the target repeated transmission times belongs to the target repeated transmission times set or the default target repeated transmission times set, and the target repeated transmission times set includes 8 kinds of repeated transmission times information , the default repeated transmission times set includes 8 kinds of repeated transmission times information.
  • the 3 bits are the lowest 3 bits in the second MCS information field.
  • the 2 bits are the lowest 2 bits in the first MCS information field.
  • the above-mentioned communication unit may be a communication interface or a transceiver, or an input-output interface of a communication chip or a system on chip.
  • the aforementioned processing unit may be one or more processors.
  • terminal device 400 may correspond to the terminal device in the method embodiment of the present application, and the above-mentioned and other operations and/or functions of each unit in the terminal device 400 are for realizing the method shown in FIG. 3
  • the corresponding process of the terminal device in 300 will not be repeated here.
  • Fig. 5 is a schematic block diagram of a network device according to an embodiment of the present application.
  • the network device 500 of FIG. 5 includes:
  • the communication unit 510 is configured to send a target modulation and coding scheme MCS parameter to the terminal device, where the target MCS parameter is used to determine a target MCS for transmitting a physical downlink shared channel PUSCH, where the target MCS parameter is used to indicate N types of MCS indexes, N is a positive integer greater than 1, and the PUSCH is used to carry the third message in the random access process.
  • the target MCS is determined according to the target MCS parameter and the target MCS information field, wherein, for the initial transmission of the PUSCH, the target MCS information field is the RAR uplink grant carried in the random access response
  • the first MCS information field in , or, for the retransmission of the PUSCH, the target MCS information field is the second in the downlink control information DCI format 0_0 scrambled by the radio network temporary identifier TC-RNTI of the temporary cell MCS information field.
  • the target MCS parameter includes a first MCS parameter, wherein the first MCS parameter is an MCS parameter dedicated to retransmitting the PUSCH.
  • the first MCS parameter is used to indicate 8 types of MCS indexes.
  • the target MCS parameter includes a second MCS parameter, wherein the second MCS parameter is an MCS parameter used for initial transmission and retransmission of the PUSCH.
  • the second MCS parameter is used to indicate 8 kinds of MCS indexes.
  • the target MCS parameter includes a third MCS parameter, wherein the third MCS parameter is an MCS parameter used for initial transmission and retransmission of the PUSCH.
  • the third MCS parameter is used to indicate 4 kinds of MCS indexes.
  • the above-mentioned communication unit may be a communication interface or a transceiver, or an input-output interface of a communication chip or a system on chip.
  • the aforementioned processing unit may be one or more processors.
  • the network device 500 may correspond to the network device in the method embodiment of the present application, and the above-mentioned and other operations and/or functions of each unit in the network device 500 are to realize the method shown in FIG. 3
  • the corresponding processes of the network devices in 300 will not be repeated here.
  • FIG. 6 is a schematic structural diagram of a communication device 600 provided in an embodiment of the present application.
  • the communication device 600 shown in FIG. 6 includes a processor 610, and the processor 610 can invoke and run a computer program from a memory, so as to implement the method in the embodiment of the present application.
  • the communication device 600 may further include a memory 620 .
  • the processor 610 can invoke and run a computer program from the memory 620, so as to implement the method in the embodiment of the present application.
  • the memory 620 may be an independent device independent of the processor 610 , or may be integrated in the processor 610 .
  • the communication device 600 may further include a transceiver 630, and the processor 610 may control the transceiver 630 to communicate with other devices, specifically, to send information or data to other devices, or receive other Information or data sent by the device.
  • the transceiver 630 may include a transmitter and a receiver.
  • the transceiver 630 may further include antennas, and the number of antennas may be one or more.
  • the communication device 600 may specifically be the network device of the embodiment of the present application, and the communication device 600 may implement the corresponding processes implemented by the network device in each method of the embodiment of the present application. For the sake of brevity, details are not repeated here. .
  • the communication device 600 may specifically be the mobile terminal/terminal device of the embodiment of the present application, and the communication device 600 may implement the corresponding processes implemented by the mobile terminal/terminal device in each method of the embodiment of the present application, for the sake of brevity , which will not be repeated here.
  • FIG. 7 is a schematic structural diagram of a chip according to an embodiment of the present application.
  • the chip 700 shown in FIG. 7 includes a processor 710, and the processor 710 can call and run a computer program from a memory, so as to implement the method in the embodiment of the present application.
  • the chip 700 may further include a memory 720 .
  • the processor 710 can invoke and run a computer program from the memory 720, so as to implement the method in the embodiment of the present application.
  • the memory 720 may be an independent device independent of the processor 710 , or may be integrated in the processor 710 .
  • the chip 700 may also include an input interface 730 .
  • the processor 710 may control the input interface 730 to communicate with other devices or chips, specifically, may obtain information or data sent by other devices or chips.
  • the chip 700 may also include an output interface 740 .
  • the processor 710 can control the output interface 740 to communicate with other devices or chips, specifically, can output information or data to other devices or chips.
  • the chip can be applied to the network device in the embodiment of the present application, and the chip can implement the corresponding processes implemented by the network device in the methods of the embodiment of the present application.
  • the chip can implement the corresponding processes implemented by the network device in the methods of the embodiment of the present application.
  • the chip can be applied to the mobile terminal/terminal device in the embodiments of the present application, and the chip can implement the corresponding processes implemented by the mobile terminal/terminal device in the various methods of the embodiments of the present application.
  • the chip can implement the corresponding processes implemented by the mobile terminal/terminal device in the various methods of the embodiments of the present application.
  • the chip can implement the corresponding processes implemented by the mobile terminal/terminal device in the various methods of the embodiments of the present application.
  • the chip can be applied to the mobile terminal/terminal device in the embodiments of the present application, and the chip can implement the corresponding processes implemented by the mobile terminal/terminal device in the various methods of the embodiments of the present application.
  • the chip mentioned in the embodiment of the present application may also be called a system-on-chip, a system-on-chip, a system-on-a-chip, or a system-on-a-chip.
  • FIG. 8 is a schematic block diagram of a communication system 900 provided by an embodiment of the present application. As shown in FIG. 8 , the communication system 900 includes a terminal device 910 and a network device 920 .
  • the terminal device 910 can be used to realize the corresponding functions realized by the terminal device in the above method
  • the network device 920 can be used to realize the corresponding functions realized by the network device in the above method.
  • the processor in the embodiment of the present application may be an integrated circuit chip, which has a signal processing capability.
  • each step of the above-mentioned method embodiments may be completed by an integrated logic circuit of hardware in a processor or instructions in the form of software.
  • the above-mentioned processor can be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application-specific integrated circuit (Application Specific Integrated Circuit, ASIC), an off-the-shelf programmable gate array (Field Programmable Gate Array, FPGA) or other available Program logic devices, discrete gate or transistor logic devices, discrete hardware components.
  • DSP Digital Signal Processor
  • ASIC Application Specific Integrated Circuit
  • FPGA Field Programmable Gate Array
  • a general-purpose processor may be a microprocessor, or the processor may be any conventional processor, or the like.
  • the steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor.
  • the software module can be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, register.
  • the storage medium is located in the memory, and the processor reads the information in the memory, and completes the steps of the above method in combination with its hardware.
  • the memory in the embodiments of the present application may be a volatile memory or a nonvolatile memory, or may include both volatile and nonvolatile memories.
  • the non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electronically programmable Erase Programmable Read-Only Memory (Electrically EPROM, EEPROM) or Flash.
  • the volatile memory can be Random Access Memory (RAM), which acts as external cache memory.
  • RAM Static Random Access Memory
  • SRAM Static Random Access Memory
  • DRAM Dynamic Random Access Memory
  • Synchronous Dynamic Random Access Memory Synchronous Dynamic Random Access Memory
  • SDRAM double data rate synchronous dynamic random access memory
  • Double Data Rate SDRAM, DDR SDRAM enhanced synchronous dynamic random access memory
  • Enhanced SDRAM, ESDRAM synchronous connection dynamic random access memory
  • Synchlink DRAM, SLDRAM Direct Memory Bus Random Access Memory
  • Direct Rambus RAM Direct Rambus RAM
  • the memory in the embodiment of the present application may also be a static random access memory (static RAM, SRAM), a dynamic random access memory (dynamic RAM, DRAM), Synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection Dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM), etc. That is, the memory in the embodiments of the present application is intended to include, but not be limited to, these and any other suitable types of memory.
  • the embodiment of the present application also provides a computer-readable storage medium for storing computer programs.
  • the computer-readable storage medium can be applied to the network device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the network device in the methods of the embodiments of the present application.
  • the computer program enables the computer to execute the corresponding processes implemented by the network device in the methods of the embodiments of the present application.
  • the computer-readable storage medium can be applied to the mobile terminal/terminal device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the mobile terminal/terminal device in the various methods of the embodiments of the present application , for the sake of brevity, it is not repeated here.
  • the embodiment of the present application also provides a computer program product, including computer program instructions.
  • the computer program product may be applied to the network device in the embodiment of the present application, and the computer program instructions cause the computer to execute the corresponding process implemented by the network device in each method of the embodiment of the present application.
  • the Let me repeat for the sake of brevity, the Let me repeat.
  • the computer program product can be applied to the mobile terminal/terminal device in the embodiments of the present application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the mobile terminal/terminal device in the methods of the embodiments of the present application, For the sake of brevity, details are not repeated here.
  • the embodiment of the present application also provides a computer program.
  • the computer program can be applied to the network device in the embodiment of the present application.
  • the computer program executes the corresponding process implemented by the network device in each method of the embodiment of the present application.
  • the computer program executes the corresponding process implemented by the network device in each method of the embodiment of the present application.
  • the computer program can be applied to the mobile terminal/terminal device in the embodiment of the present application.
  • the computer program executes each method in the embodiment of the present application to be implemented by the mobile terminal/terminal device
  • the corresponding process will not be repeated here.
  • the disclosed systems, devices and methods may be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components can be combined or May be integrated into another system, or some features may be ignored, or not implemented.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit.
  • the functions described above are realized in the form of software function units and sold or used as independent products, they can be stored in a computer-readable storage medium.
  • the technical solution of the present application is essentially or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disc and other media that can store program codes. .

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Abstract

一种无线通信的方法、终端设备和网络设备，该方法包括：终端设备根据目标调制编码方案MCS参数和目标MCS信息域，确定用于传输物理下行共享信道PUSCH的目标MCS，其中，所述目标MCS参数用于指示N种MCS索引，N为大于1的正整数，所述PUSCH用于承载随机接入过程中的第三条消息。

Description

无线通信的方法、终端设备和网络设备 技术领域
本申请实施例涉及通信领域，具体涉及一种无线通信的方法、终端设备和网络设备。
背景技术
在新无线(New Radio，NR)系统中，为了支持高可靠低时延(ultra-reliable and low latency communication，URLLC)业务，采用了上行数据的重复传输来提高传输可靠性。
在NR系统中，支持四步随机接入过程，具体包括消息1(Msg1)-消息4(Msg4)的发送过程。其中，消息3(Msg3)通过物理上行共享信道(Physical Uplink Shared Channel，PUSCH)承载。
在一些场景中，考虑利用Msg3 PUSCH的调度信息中的调制编码方案(Modulation and Coding Scheme，MCS)信息域中的部分比特指示Msg3 PUSCH重复传输次数信息。但是，对于Msg3 PUSCH的初传和重传，Msg3 PUSCH的调度信息中的MCS信息域的比特数不同，此情况下，如何指示用于Msg3 PUSCH的MCS索引和/或重复传输次数是一项亟需解决的问题。
发明内容
本申请提供了一种无线通信的方法、终端设备和网络设备，终端设备可以确定用于传输Msg3 PUSCH的MCS索引。
第一方面，提供了一种无线通信的方法，包括：终端设备根据目标调制编码方案MCS参数和目标MCS信息域，确定用于传输物理下行共享信道PUSCH的目标MCS，其中，所述目标MCS参数用于指示N种MCS索引，N为大于1的正整数，所述PUSCH用于承载随机接入过程中的第三条消息。
第二方面，提供了一种无线通信的方法，包括：网络设备向终端设备发送目标调制编码方案MCS参数，所述目标MCS参数用于确定传输物理下行共享信道PUSCH的目标MCS，其中，所述目标MCS参数用于指示N种MCS索引，N为大于1的正整数，所述PUSCH用于承载随机接入过程中的第三条消息。
第三方面，提供了一种终端设备，用于执行上述第一方面或其各实现方式中的方法。
具体地，该终端设备包括用于执行上述第一方面或其各实现方式中的方法的功能模块。
第四方面，提供了一种网络设备，用于执行上述第二方面或其各实现方式中的方法。
具体地，该网络设备包括用于执行上述第二方面或其各实现方式中的方法的功能模块。
第五方面，提供了一种终端设备，包括处理器和存储器。该存储器用于存储计算机程序，该处理器用于调用并运行该存储器中存储的计算机程序，执行上述第一方面或其各实现方式中的方法。
第六方面，提供了一种网络设备，包括处理器和存储器。该存储器用于存储计算机程序，该处理器用于调用并运行该存储器中存储的计算机程序，执行上述第二方面或其各实现方式中的方法。
第七方面，提供了一种芯片，用于实现上述第一方面至第二方面中的任一方面或其各实现方式中的方法。
具体地，该芯片包括：处理器，用于从存储器中调用并运行计算机程序，使得安装有该装置的设备执行如上述第一方面至第二方面中的任一方面或其各实现方式中的方法。
第八方面，提供了一种计算机可读存储介质，用于存储计算机程序，该计算机程序使得计算机执行上述第一方面至第二方面中的任一方面或其各实现方式中的方法。
第九方面，提供了一种计算机程序产品，包括计算机程序指令，所述计算机程序指令使得计算机执行上述第一方面至第二方面中的任一方面或其各实现方式中的方法。
第十方面，提供了一种计算机程序，当其在计算机上运行时，使得计算机执行上述第一方面至第二方面中的任一方面或其各实现方式中的方法。
通过上述技术方案，终端设备可以根据目标MCS参数和目标MCS信息域确定用于Msg3 PUSCH的目标MCS，从而能够实现承载Msg3的PUSCH的重复传输，进而提升Msg3的传输性能。
附图说明
图1是本申请实施例提供的一种通信系统架构的示意性图。
图2是四步随机接入过程的示意图。
图3是根据本申请实施例提供的一种无线通信的方法的示意性交互图。
图4是根据本申请实施例提供的一种终端设备的示意性框图。
图5是根据本申请实施例提供的一种网络设备的示意性框图。
图6是根据本申请实施例提供的一种通信设备的示意性框图。
图7是根据本申请实施例提供的一种芯片的示意性框图。
图8是根据本申请实施例提供的一种通信系统的示意性框图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。针对本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
本申请实施例的技术方案可以应用于各种通信系统，例如：全球移动通讯(Global System of Mobile communication，GSM)系统、码分多址(Code Division Multiple Access，CDMA)系统、宽带码分多址(Wideband Code Division Multiple Access，WCDMA)系统、通用分组无线业务(General Packet Radio Service，GPRS)、长期演进(Long Term Evolution，LTE)系统、先进的长期演进(Advanced long term evolution，LTE-A)系统、新无线(New Radio，NR)系统、NR系统的演进系统、非授权频谱上的LTE(LTE-based access to unlicensed spectrum，LTE-U)系统、非授权频谱上的NR(NR-based access to unlicensed spectrum，NR-U)系统、非地面通信网络(Non-Terrestrial Networks，NTN)系统、通用移动通信系统(Universal Mobile Telecommunication System，UMTS)、无线局域网(Wireless Local Area Networks，WLAN)、无线保真(Wireless Fidelity，WiFi)、第五代通信(5th-Generation，5G)系统或其他通信系统等。
通常来说，传统的通信系统支持的连接数有限，也易于实现，然而，随着通信技术的发展，移动通信系统将不仅支持传统的通信，还将支持例如，设备到设备(Device to Device，D2D)通信，机器到机器(Machine to Machine，M2M)通信，机器类型通信(Machine Type Communication，MTC)，车辆间(Vehicle to Vehicle，V2V)通信，或车联网(Vehicle to everything，V2X)通信等，本申请实施例也可以应用于这些通信系统。
可选地，本申请实施例中的通信系统可以应用于载波聚合(Carrier Aggregation，CA)场景，也可以应用于双连接(Dual Connectivity，DC)场景，还可以应用于独立(Standalone，SA)布网场景。
可选地，本申请实施例中的通信系统可以应用于非授权频谱，其中，非授权频谱也可以认为是共享频谱；或者，本申请实施例中的通信系统也可以应用于授权频谱，其中，授权频谱也可以认为是非共享频谱。
本申请实施例结合网络设备和终端设备描述了各个实施例，其中，终端设备也可以称为用户设备(User Equipment，UE)、接入终端、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置等。
终端设备可以是WLAN中的站点(STATION，ST)，可以是蜂窝电话、无绳电话、会话启动协议(Session Initiation Protocol，SIP)电话、无线本地环路(Wireless Local Loop，WLL)站、个人数字助理(Personal Digital Assistant，PDA)设备、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备、下一代通信系统例如NR网络中的终端设备，或者未来演进的公共陆地移动网络(Public Land Mobile Network，PLMN)网络中的终端设备等。
在本申请实施例中，终端设备可以部署在陆地上，包括室内或室外、手持、穿戴或车载；也可以部署在水面上(如轮船等)；还可以部署在空中(例如飞机、气球和卫星上等)。
在本申请实施例中，终端设备可以是手机(Mobile Phone)、平板电脑(Pad)、带无线收发功能的电脑、虚拟现实(Virtual Reality，VR)终端设备、增强现实(Augmented Reality，AR)终端设备、工业控制(industrial control)中的无线终端设备、无人驾驶(self driving)中的无线终端设备、远程医疗(remote medical)中的无线终端设备、智能电网(smart grid)中的无线终端设备、运输安全(transportation safety)中的无线终端设备、智慧城市(smart city)中的无线终端设备或智慧家庭(smart home)中的无线终端设备等。
作为示例而非限定，在本申请实施例中，该终端设备还可以是可穿戴设备。可穿戴设备也可以称为穿戴式智能设备，是应用穿戴式技术对日常穿戴进行智能化设计、开发出可以穿戴的设备的总称，如眼镜、手套、手表、服饰及鞋等。可穿戴设备即直接穿在身上，或是整合到用户的衣服或配件的一种便携式设备。可穿戴设备不仅仅是一种硬件设备，更是通过软件支持以及数据交互、云端交互来实现强大的功能。广义穿戴式智能设备包括功能全、尺寸大、可不依赖智能手机实现完整或者部分的功能，例如：智能手表或智能眼镜等，以及只专注于某一类应用功能，需要和其它设备如智能手机配合使用，如各类进行体征监测的智能手环、智能首饰等。
在本申请实施例中，网络设备可以是用于与移动设备通信的设备，网络设备可以是WLAN中的 接入点(Access Point，AP)，GSM或CDMA中的基站(Base Transceiver Station，BTS)，也可以是WCDMA中的基站(NodeB，NB)，还可以是LTE中的演进型基站(Evolutional Node B，eNB或eNodeB)，或者中继站或接入点，或者车载设备、可穿戴设备以及NR网络中的网络设备(gNB)或者未来演进的PLMN网络中的网络设备或者NTN网络中的网络设备等。
作为示例而非限定，在本申请实施例中，网络设备可以具有移动特性，例如网络设备可以为移动的设备。可选地，网络设备可以为卫星、气球站。例如，卫星可以为低地球轨道(low earth orbit，LEO)卫星、中地球轨道(medium earth orbit，MEO)卫星、地球同步轨道(geostationary earth orbit，GEO)卫星、高椭圆轨道(High Elliptical Orbit，HEO)卫星等。可选地，网络设备还可以为设置在陆地、水域等位置的基站。
在本申请实施例中，网络设备可以为小区提供服务，终端设备通过该小区使用的传输资源(例如，频域资源，或者说，频谱资源)与网络设备进行通信，该小区可以是网络设备(例如基站)对应的小区，小区可以属于宏基站，也可以属于小小区(Small cell)对应的基站，这里的小小区可以包括：城市小区(Metro cell)、微小区(Micro cell)、微微小区(Pico cell)、毫微微小区(Femto cell)等，这些小小区具有覆盖范围小、发射功率低的特点，适用于提供高速率的数据传输服务。
示例性的，本申请实施例应用的通信系统100如图1所示。该通信系统100可以包括网络设备110，网络设备110可以是与终端设备120(或称为通信终端、终端)通信的设备。网络设备110可以为特定的地理区域提供通信覆盖，并且可以与位于该覆盖区域内的终端设备进行通信。
图1示例性地示出了一个网络设备和两个终端设备，可选地，该通信系统100可以包括多个网络设备并且每个网络设备的覆盖范围内可以包括其它数量的终端设备，本申请实施例对此不做限定。
可选地，该通信系统100还可以包括网络控制器、移动管理实体等其他网络实体，本申请实施例对此不作限定。
应理解，本申请实施例中网络/系统中具有通信功能的设备可称为通信设备。以图1示出的通信系统100为例，通信设备可包括具有通信功能的网络设备110和终端设备120，网络设备110和终端设备120可以为上文所述的具体设备，此处不再赘述；通信设备还可包括通信系统100中的其他设备，例如网络控制器、移动管理实体等其他网络实体，本申请实施例中对此不做限定。
应理解，本文中术语“系统”和“网络”在本文中常被可互换使用。本文中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。
应理解，在本申请的实施例中提到的“指示”可以是直接指示，也可以是间接指示，还可以是表示具有关联关系。举例说明，A指示B，可以表示A直接指示B，例如B可以通过A获取；也可以表示A间接指示B，例如A指示C，B可以通过C获取；还可以表示A和B之间具有关联关系。
在本申请实施例的描述中，术语“对应”可表示两者之间具有直接对应或间接对应的关系，也可以表示两者之间具有关联关系，也可以是指示与被指示、配置与被配置等关系。
本申请实施例中，"预定义"可以通过在设备(例如，包括终端设备和网络设备)中预先保存相应的代码、表格或其他可用于指示相关信息的方式来实现，本申请对于其具体的实现方式不做限定。比如预定义可以是指协议中定义的。
本申请实施例中，所述"协议"可以指通信领域的标准协议，例如可以包括LTE协议、NR协议以及应用于未来的通信系统中的相关协议，本申请对此不做限定。
为便于理解本申请实施例的技术方案，以下通过具体实施例详述本申请的技术方案。以下相关技术作为可选方案与本申请实施例的技术方案可以进行任意结合，其均属于本申请实施例的保护范围。本申请实施例包括以下内容中的至少部分内容。
在NR系统中，网络设备发送上行授权(UL grant)，该UL grant承载在下行控制信息(Downlink Control Information，DCI)中，该DCI为DCI(格式)format 0_0，或DCI format 0_1，调度物理上行共享信道(Physical Uplink Shared Channel，PUSCH)传输。
网络设备通过承载UL grant的DCI调度上行数据传输时，会在DCI中携带一个时域资源分配(TimeDomainResourceAllocation，TDRA)域，该TDRA域为4bit，可以指示一个时域资源分配表格中的16个不同的行，每一行包含不同的资源分配组合，比如PUSCH的起始位置S，长度L，k2，以及不同的映射类型(type)等。其中，k2表示DCI所在的时隙(slot)和PUSCH所在的slot之间偏移的slot的个数。PUSCH的时域资源分配的type包括类型A(Type A)和类型B(Type B)。Type A和Type B的区别在于对应的S和L候选值的取值范围不同。其中，Type A主要面向基于时隙(slot-based)业务，S比较靠前，L比较长。而Type B主要面向高可靠低时延通信(Ultra-Reliable  and Low Latency Communication，URLLC)业务，对时延要求较高，所以S的位置比较灵活以便传输随时到达的URLLC业务，L较短，可降低传输时延。S和L可选的取值范围如下表1所示。
表1
Figure PCTCN2022071119-appb-000001
承载UL grant的DCI中除了上述时域资源分配信息之外，还包括频域资源信息，MCS，功率控制命令(Transmission Power Control，TPC)，跳频信息，冗余版本，混合自动请求重传(Hybrid Automatic Repeat reQuest，HARQ)进程号等，这里不再赘述。
在NR系统中，支持四步随机接入过程，具体包括消息1(Msg1)-消息4(Msg4)的发送过程。作为一个示例，如图2所示，四步随机接入过程包括如下步骤：
步骤1，终端设备向网络设备发送随机接入前导码(Preamble，也即Msg 1)。
其中，随机接入前导码也可以称为前导码、随机接入前导码序列、前导码序列等。
具体而言，终端设备可以选择物理随机接入信道(Physical Random Access Channel，PRACH)资源，PRACH资源可以包括时域资源、频域资源和码域资源。网络设备通过广播系统信息块(System Information Block，SIB)1向终端设备发送随机接入相关参数，其中随机接入公共配置信息元素(RACH-ConfigCommon IE)中的针对同步信号块(Synchronization Signal Block，SSB)的参考信号接收功率(Reference Signal Receiving Power，RSRP)门限值(rsrp-ThresholdSSB)用于终端设备进行SSB选择，终端设备将每个SSB下的RSRP测量结果与rsrp-ThresholdSSB进行对比，选择测量值高于所配置门限值的SSB进行接入，若没有满足配置门限值的SSB，则从全部SSB中随机选择一个进行接入。每个SSB对应一组随机接入前导码(Preamble)资源和随机接入时机(RACH Occasion，RO)资源，终端设备从选定的SSB中用于基于竞争的随机接入资源中进行随机选择，将Preamble索引(PREAMBLE_INDEX)设置为选定的随机接入Preamble。网络设备可以根据Preamble估计其与终端设备之间的传输时延并以此校准上行定时(timing)，以及可以大体确定终端设备传输Msg 3所需要的资源大小。为了让网络设备可以更准确的了解到待传输的Msg 3的大小以分配合适的上行资源，将Preamble分为Preamble组(group)A和Preamble group B，若随机接入资源中存在Preamble group B，终端设备可以根据Msg 3的大小以及路损(pathloss)对Preamble group进行选择。
步骤2，网络设备向终端设备发送随机接入响应(Random Access Response，RAR，也即Msg 2)
终端设备向网络设备发送Preamble后，可以开启一个随机接入响应窗口(ra-ResponseWindow)，在该ra-ResponseWindow内根据随机访问无线网络临时标识符(Random Access Radio Network Temporary Identifier，RA-RNTI)检测对应的物理下行控制信道(Physical Downlink Control Channel，PDCCH)。若终端设备检测到RA-RNTI加扰的PDCCH后，可以获得该PDCCH调度的物理下行共享信道(Physical Downlink Shared Channel，PDSCH)。其中，该PDSCH中包括Preamble对应的RAR。
RA-RNTI根据发送Preamble的PRACH的时频位置计算得到，因此如果多个终端设备在同一个RO上发送Preamble，则对应的RAR复用在同一个RAR媒体接入控制协议数据单元(Media Access Control Protocol Data Unit，MAC PDU)中。若终端成功接收到与发送Preamble的RO资源对应的RA-RNTI加扰的PDCCH，并且RAR中包含一个MAC子PDU(subPDU)所携带的随机访问序列标识符(Random Access Preamble Identifier，RAPID)与上述Msg 1中选择的PREAMBLE_INDEX相对应，则RAR接收成功，终端可解码得到定时提前命令(Timing Advance Command，TAC)，上行授权资源(UL Grant)和临时小区RNTI(Temporary Cell Radio Network Temporary Identity，TC-RNTI)，进行Msg 3。
若在ra-ResponseWindow运行期间没有接收到与发送Preamble的RO资源对应的RA-RNTI加扰的PDCCH，或接收到了RA-RNTI加扰的PDCCH，但RAR中不包含与PREAMBLE_INDEX对应的MAC subPDU，上述两种情况出现时则认为RAR接收失败，此时，若Preamble的传输次数没有超过网络配置的最大传输次数(preambleTransMax)，终端设备需要对Msg 1进行重传，若Preamble的传输次数超过了网络配置的最大传输次数(preambleTransMax)，终端设备向上层上报随机接入问题。
步骤3，终端设备发送Msg 3。
终端设备在收到RAR消息后，判断该RAR是否为属于自己的RAR消息，例如终端设备可以利用前导码索引进行核对，在确定是属于自己的RAR消息后，可以在RRC层产生Msg 3，并向网络设备发送Msg 3，其中需要携带终端设备的标识信息等。
其中，Msg 3主要用于通知网络设备该随机接入的触发事件。针对不同的随机接入触发事件，终端设备在步骤3中发送的Msg 3可以包括不同的内容。
例如，对于初始接入的场景，Msg 3可以包括RRC层生成的RRC连接请求消息(RRC Setup Request)。此外，Msg 3还可以携带例如终端设备的5G-服务临时移动用户标识(Serving-Temporary Mobile Subscriber Identity，S-TMSI)或随机数等。
又例如，对于RRC连接重建场景，Msg 3可以包括RRC层生成的RRC连接重建请求消息(RRC Reestabilshment Request)。此外，Msg 3还可以携带例如小区无线网络临时标识(Cell Radio Network Temporary Identifier，C-RNTI)等。
又例如，对于切换场景，Msg 3可以包括RRC层生成的RRC切换确认消息(RRC Handover Confirm)，其携带终端设备的C-RNTI。此外，Msg 3还可携带例如缓冲状态报告(Buffer Status Report，BSR)等信息。对于其它触发事件例如上/下行数据到达的场景，Msg 3至少可以包括终端设备的C-RNTI。
步骤4，网络设备向终端设备发送冲突解决消息(contention resolution)，即Msg 4。
网络设备向终端设备发送Msg 4，终端设备正确接收Msg 4完成竞争解决(Contention Resolution)。例如在RRC连接建立过程中，Msg 4中可以携带RRC连接建立消息。
其中，消息3(Msg3)通过物理上行共享信道(Physical Uplink Shared Channel，PUSCH)承载，Msg2中的RAR承载用于Msg3的初次传输的PUSCH的UL grant，RAR中承载的UL grant称为RAR UL grant。RAR UL grant信息承载的信息可以包括PUSCH的时域和频域资源分配信息，功率控制命令TPC，跳频，和MCS等。
如果网络设备没有正确收到Msg3，会通过DCI指示Msg3的重传的调度信息，例如通过临时小区无线网络临时标识符(Temporary Cell Radio Network Temporary Identity，TC-RNTI)加扰的DCI format 0_0承载，除了RAR UL grant包含的内容之外，还包括新数据指示(New Data Indicator，NDI)，冗余版本，HARQ进程号。
在NR系统中，为了支持高可靠低时延(ultra-reliable and low latency communication，URLLC)业务，采用了上行数据的重复传输来提高传输可靠性。
为了提高Msg3 PUSCH的覆盖性能，引入Msg3 PUSCH的重复传输，基站需要指示Msg3 PUSCH重复传输的次数。例如，对于通过RAR UL grant调度的Msg3 PUSCH的初次传输，其重复传输次数可以通过RAR UL grant中的MCS信息域中的最高位2比特指示。
在相关技术中，RAR UL grant中的MCS信息域的4比特指示表2所示MCS表格中的前16个MCS index。
表2
Figure PCTCN2022071119-appb-000002
对于Msg 3 PUSCH的重复传输，由于Msg3的大小的选择有限，而且Msg 3 PUSCH的重复传输用于覆盖增强场景，Msg 3 PUSCH传输所采用的MCS等级也是有限的。因此，考虑利用MCS信息域中的部分比特指示Msg3 PUSCH的重复传输次数。
对于Msg3 PUSCH的初传，Msg3 PUSCH的调度信息通过RAR UL grant承载，该调度信息中包括4比特的MCS信息域。考虑将该4比特MCS信息域中的最高位的2比特用于指示4种重复传输次数，而原MCS信息域的最低位2比特用于指示MCS index，此时指示4种MCS index。MCS信息域的最高位的2比特可以指示包含四种重复传输次数的集合中的一种重复传输次数。其中，重复传输次数集合可以是网络设备通过系统消息配置的。如果网络设备没有配置重复传输次数集合，缺省重复传输次数集合可以为{1,2,3,4}。
对于Msg3的重传，Msg3 PUSCH的调度信息通过TC-RNTI加扰CRC的DCI format 0_0承载。调度信息中包含了5比特的MCS信息域。因此，对于Msg3 PUSCH的初传和重传，MCS信息域的比特数不同，此情况下，如何指示用于Msg3 PUSCH的MCS索引和/或重复传输次数是一项亟需解决的问题。
图3是根据本申请实施例的无线通信的方法300的示意性交互图，如图3所示，该方法300包括如下至少部分内容：
S210，终端设备根据目标MCS参数和目标MCS信息域，确定用于传输物理下行共享信道PUSCH的目标MCS，其中，所述目标MCS参数用于指示N种MCS索引，N为大于1的正整数，所述PUSCH用于承载随机接入过程中的第三条消息。
在本申请实施例中，用于承载Msg3的PUSCH也可以称为Msg3 PUSCH。
在一些实施例中，所述目标MCS信息域可以为承载于RAR上行授权中的第一MCS信息域。其中，该RAR UL grant用于调度Msg3 PUSCH的初传。即在Msg3 PUSCH的初传场景中，目标MCS信息域可以为该第一MCS信息域。
在一些实施例中，所述目标MCS信息域可以为承载于TC-RNTI加扰的DCI格式0_0中的第二信息域。其中，该TC-RNTI加扰的DCI格式0_0用于调度Msg3 PUSCH的重传。即在Msg3 PUSCH的重传场景中，目标MCS信息域可以为该第二MCS信息域。
在一些实施例中，第一MCS信息域为4比特，第二MCS信息域为5比特。
在一些实施例中，第一MCS信息域中的部分比特用于指示初传Msg3 PUSCH的重复传输次数信息。例如，第一MCS信息域中的最高2比特用于指示初传Msg3 PUSCH的重复传输次数信息。
在一些实施例中，第二MCS信息域中的部分比特用于指示重传Msg3 PUSCH的重复传输次数信息。例如，第二MCS信息域中的最高2比特用于指示重传Msg3 PUSCH的重复传输次数信息。
在一些实施例中，终端设备可以根据所述第一MCS信息域或所述第二MCS信息域中的所述2比特和目标重复传输次数集合，确定目标重复传输次数。其中，该目标重复传输次数集合包括K个重复传输次数信息。作为示例，K为4。
可选地，所述2比特用于指示所述目标重复传输次数在所述K个重复传输次数信息中的排序。
例如，2比特取值为0，表示目标重复传输次数为所述K个重复传输次数信息中的第一个重复传输次数，取值为1，表示目标重复传输次数为所述K个重复传输次数信息中的第二个重复传输次数，依次类推。
可选地，该目标重复传输次数集合可以为X个重复传输次数集合中的一个，其中X为正整数。
可选地，该目标重复传输次数集合可以是网络设备配置的，例如通过系统消息配置。例如，通过PUSCH公共配置信息(pusch-ConfigCommon)配置。
可选地，X可以为4。
可选地，该X个重复传输次数集合可以是预定义的，或者是网络设备配置的，例如通过系统消息配置。
在另一些实施例中，在未配置该目标重复传输次数集合时，终端设备可以根据第一MCS信息域或所述第二MCS信息域中的所述2比特和缺省重复传输次数集合确定目标重复传输次数。其中，该缺省重复传输次数集合包括P个重复传输次数信息，P为正整数。
作为示例，缺省重复传输次数集合为{1,2,3,4}。
可选地，所述2比特用于指示所述缺省重复传输次数在所述P个重复传输次数信息中的排序。
例如，2比特取值为0，表示目标重复传输次数为P个重复传输次数信息中的第一个重复传输次数，取值为1，表示目标重复传输次数为P个重复传输次数信息中的第二个重复传输次数，依次类推。
在一些实施例中，所述第一MCS信息域中的目标比特(即第一MCS信息域中除用于指示重复传输次数的2比特之外的其他比特，例如最低位2比特)用于确定初传Msg3 PUSCH的目标MCS。
例如，第一MCS信息域中的该最低位2比特用于指示4种MCS索引(index)，该4种MCS索引可以是网络设备通过用于Msg3的重复传输的MCS参数(mcs-Msg3Repetition)配置的。可选地，如果mcs-Msg3Repetition没有配置，该4种MCS index取缺省值0-3。
作为示例，第一MCS信息域的最低位2比特的取值与所指示的4种MCS index I MCS的对应关系如下表1所示。
表1
Figure PCTCN2022071119-appb-000003
在一些实施例中，所述第二MCS信息域中的目标比特(即第二MCS信息域中除用于指示重复传输次数的2比特之外的其他比特，例如最低位3比特)中的至少部分比特用于确定重传Msg3 PUSCH的目标MCS。即对于Msg3 PUSCH的重传场景，最多可以指示8种MCS索引。此情况下，如何指示用于重传Msg3 PUSCH的目标MCS是一项亟需解决的问题。
以下，结合目标MCS参数的具体实现，说明用于重传PUSCH的所述目标MCS的确定方式。
应理解，在本申请实施例中，网络设备和终端设备对于目标MCS的理解一致，例如，网络设备可以按照目标MCS参数设置目标MCS信息域中的目标比特的取值，以向终端设备指示目标MCS索引，对应地，终端设备可以根据该目标MCS参数对目标MCS信息域中的目标比特的取值进行解读，以确定网络设备所指示的目标MCS索引。
实施例1：
在该实施例1中，可以设计专用于重传Msg3 PUSCH的MCS索引集合。
这样，在Msg3 PUSCH的重传场景中，终端设备可以根据MCS信息域中的目标比特和用于重传Msg3 PUSCH的MCS索引集合，确定用于重传Msg3 PUSCH的目标MCS。
实施例1-1：
在本申请一些实施例中，所述目标MCS参数包括第一MCS参数，其中，所述第一MCS参数为专用于重传所述PUSCH的MCS参数。为便于区分和说明，将第一MCS参数记为mcs-Msg3Repetition-Re-1。
在一些实施例中，所述第一MCS参数可以是网络设备配置的，例如通过无线资源控制(Radio Resource Control，RRC)信令配置。
在一些实施例中，所述第一MCS参数指示的MCS索引的个数根据所述第二MCS信息域中的目标比特能够指示的MCS索引数确定。
在一些实施例中，所述目标比特为3比特，所述第一MCS参数用于指示8种MCS索引。
在本申请一些实施例中，S210可以包括：
根据所述第一MCS信息域中的目标比特(例如最低位3比特)和所述第一MCS参数所指示的8种MCS索引，确定用于重传所述PUSCH的目标MCS，其中，所述3比特用于指示所述8种MCS索引中的目标MCS索引。
例如，所述目标MCS索引所指示的MCS为用于重传所述Msg3 PUSCH的目标MCS。
在一些实施例中，所述目标比特的取值用于指示目标MCS索引在所述8种MCS索引中的排序。
例如，所述目标比特取值为000表示目标MCS索引为所述8种MCS索引中的第一个MCS索引，取值为001表示目标MCS索引为所述8种MCS索引中的第二个MCS索引，取值为010表示所述目标MCS索引为所述8种MCS索引中的第三个MCS索引，以此类推。
实施例1-2：
在本申请另一些实施例中，所述目标MCS参数包括第一缺省MCS参数，其中，所述第一缺省MCS参数为专用于重传所述PUSCH的缺省MCS参数。
在该实施例中，Msg3 PUSCH的初传和重传采用独立的缺省MCS参数。
在一些实施例中，用于Msg3 PUSCH的初传的缺省MCS参数可以指示4种MCS索引，缺省值为0～3。
在一些实施例中，所述第一缺省MCS参数指示的MCS索引的个数根据所述第二MCS信息域中的目标比特能够指示的MCS索引数确定。
在一些实施例中，所述目标比特为3比特，所述第一缺省MCS参数用于指示8种MCS索引。例如，所述8种MCS索引的取值范围为0至7。
在本申请一些实施例中，S210可以包括：
在未配置所述第一MCS参数的情况下，根据所述第一MCS信息域中的目标比特(例如最低位3比特)和所述第一缺省MCS参数所指示的8种MCS索引，确定用于重传PUSCH的目标MCS，其中，所述3比特用于指示所述8种MCS索引中的目标MCS索引。
例如，所述目标MCS索引所指示的MCS为用于重传所述PUSCH的目标MCS。
在一些实施例中，所述目标比特用于指示目标MCS索引在所述第一缺省MCS参数所指示的8种MCS索引中的排序。
以第一缺省MCS参数指示MCS索引0～7为例，所述目标比特取值为000表示目标MCS索引为所述第一缺省MCS参数所指示的8种MCS索引中的MCS索引0，取值为001表示目标MCS索引为所述第一缺省MCS参数所指示的8种MCS索引中的MCS索引1，取值为010表示所述目标MCS索引为所述第一缺省MCS参数所指示的8种MCS索引中的MCS索引2，以此类推。
作为示例而非限定，第二MCS信息域的最低位3比特的取值与所指示的8种MCS index I MCS的对应关系如表2所示。
表2
Figure PCTCN2022071119-appb-000004
实施例2：
可选地，在该实施例2中，用于初传和重传Msg3 PUSCH的MCS索引集合为同一集合，并且所述MCS索引集合包括的MCS索引的个数根据重传Msg3 PUSCH能够指示的MCS索引的个数确定。采用此方式，网络设备可以不必为Msg3 PUSCH的重传配置专用的MCS索引集合，有利于降低信令开销。
例如，对于Msg3 PUSCH的初传场景，第一MCS信息域中的2比特用于指示初传Msg3 PUSCH的MCS索引，最多能够指示4种MCS索引。
又例如，对于Msg3 PUSCH的重传场景，第二MCS信息域中的3比特用于指示重传Msg3 PUSCH的MCS索引，最多能够指示8种MCS索引。
因此，可以设计用于初传和重传Msg3 PUSCH的MCS索引集合用于指示8种MCS索引。
实施例2-1：
在本申请一些实施例中，所述目标MCS参数包括第二MCS参数，其中，所述第二MCS参数为用于初传和重传所述PUSCH的MCS参数。记为mcs-Msg3Repetition-Re-2。
在一些实施例中，所述第二MCS参数可以是网络设备配置的，例如通过RRC信令配置。
在一些实施例中，所述第二MCS参数用于指示8种MCS索引。
在一些实施例中，对于Msg3 PUSCH的重传，S210可以包括：
根据所述第二MCS信息域中的目标比特(例如最低位3比特)和所述第二MCS参数所指示的8种MCS索引，确定用于重传所述PUSCH的目标MCS，其中，所述目标比特用于指示表示所述8种MCS索引中的目标MCS索引。
例如，所述目标MCS索引所指示的MCS为用于重传所述PUSCH的目标MCS。
在一些实施例中，所述目标比特用于指示目标MCS索引在所述8种MCS索引中的排序。
例如，所述目标比特取值为000表示目标MCS索引为所述8种MCS索引中的第一个MCS索引，取值为001表示目标MCS索引为所述8种MCS索引中的第二个MCS索引，取值为010表示所述目标MCS索引为所述8种MCS索引中的第三个MCS索引，以此类推。
在一些实施例中，对于Msg3 PUSCH的初传，所述终端设备只使用所述第二MCS参数所指示的8种MCS索引中的4种MCS索引，作为示例而非限定，前4种MCS索引。
在一些实施例中，对于Msg3 PUSCH的初传，S210可以包括：
根据所述第一MCS信息域中的目标比特(例如最低位2比特)和所述第二MCS参数所指示的8种MCS索引中的前4种MCS索引，确定用于初传所述PUSCH的目标MCS，其中，所述目标比特用于指示所述前4种MCS索引中的目标MCS索引。
例如，所述目标MCS索引所指示的MCS为用于初传所述PUSCH的目标MCS。
在一些实施例中，所述目标比特的取值用于指示目标MCS索引在所述前4种MCS索引中的排序。例如，所述目标比特取值为00表示目标MCS索引为所述前4种MCS索引中的第一个MCS索引，取值为01表示目标MCS索引为所述前4种MCS索引中的第二个MCS索引，取值为10表示目标MCS索引为所述前4种MCS索引中的第三个MCS索引，以此类推。
实施例2-2：
在本申请另一些实施例中，所述目标MCS参数包括第二缺省MCS参数，其中，所述第二缺省MCS参数为用于初传和重传所述PUSCH的缺省MCS参数。
在该实施例中，Msg3 PUSCH的初传和重传采用相同的缺省MCS参数。
在一些实施例中，所述第二缺省MCS参数用于指示8种MCS索引。例如，所述8种MCS索引的取值范围为0至7。
在一些实施例中，对于Msg3 PUSCH的重传，S210可以包括：
在未配置所述第二MCS参数的情况下，根据所述第二MCS信息域中的目标比特(例如最低位3比特)和所述第二缺省MCS参数所指示的8种MCS索引，确定用于重传所述PUSCH的目标MCS，其中，所述目标比特用于指示表示所述8种MCS索引中的目标MCS索引。
例如，所述目标MCS索引所指示的MCS为用于重传所述PUSCH的目标MCS。
在一些实施例中，所述目标比特用于指示目标MCS索引在所述8种MCS索引中的排序。
以第二缺省MCS参数指示MCS索引0～7为例，所述目标比特取值为000表示目标MCS索引为所述8种MCS索引中的MCS索引0，取值为001表示目标MCS为所述8种MCS索引中的MCS索引1，取值为010所述8种MCS索引中的MCS索引2，以此类推。
在一些实施例中，对于Msg3 PUSCH的初传，所述终端设备只使用所述第二缺省MCS参数所指示的8种MCS索引中的4种MCS索引，作为示例，前4种MCS索引。
在一些实施例中，对于Msg3 PUSCH的初传，S210可以包括：
根据所述第一MCS信息域中的目标比特(例如最低位2比特)和所述第二缺省MCS参数所指示的8种MCS索引中的前4种MCS索引，确定用于初传所述PUSCH的目标MCS，其中，所述2比特用于指示所述前4种MCS索引中的目标MCS索引。
以第二缺省MCS参数指示MCS索引0～7为例，所述2比特取值为00表示目标MCS索引为所述前4种MCS索引中的MCS索引0，取值为01表示目标MCS索引为所述前4种MCS索引中的MCS索引1，取值为10表示目标MCS索引为所述前4种MCS索引中的MCS索引2，以此类推。
作为示例而非限定，第一MCS信息域中的最低位2比特，第二MCS信息域的最低位3比特的取值与所指示的8种MCS index I MCS的对应关系如表3所示。
表3
Figure PCTCN2022071119-appb-000005
实施例3：
可选地，在该实施例3中，用于初传和重传Msg3 PUSCH的MCS索引集合为同一集合，并且所述MCS索引集合包括的MCS索引的个数根据初传Msg3 PUSCH所需指示的MCS索引数确定。采用此方式，网络设备可以不必为Msg3 PUSCH的重传配置专用的MCS索引集合。
在一些实施例中，所述目标MCS参数包括第三MCS参数，其中，所述第三MCS参数为用于初传和重传所述PUSCH的MCS参数。记为mcs-Msg3Repetition-3。
在一些实施例中，所述第三MCS参数用于指示4种MCS索引。
实施例3-1：Msg3 PUSCH的重传场景需要指示8种MCS索引。
在本申请一些实施例中，S210可以包括：
根据所述第二MCS信息域中的目标比特(例如最低位3比特)和所述第三MCS参数所指示的4种MCS索引，确定用于重传所述PUSCH的目标MCS。
在一些实施例中，所述3比特用于指示8种MCS索引，所述8种MCS索引中的4种MCS索引直接根据第三MCS参数所指示的MCS索引确定，其他4种MCS索引可以根据所述第三MCS参数所指示的4种MCS索引中的至少一种MCS索引和特定偏移量确定。
例如，所述8种MCS索引中的前4种MCS索引(即第1～4种MCS索引)对应所述第三MCS参数所指示的4种MCS索引，所述8种MCS索引中的后四种MCS索引(即第5～8种MCS索引)根据所述第三MCS参数所指示的4种MCS索引中的至少一种MCS索引确定。
可选地，所述前4种MCS索引可以指该3比特取值为000～011所指示的MCS索引，后四种MCS索引可以指3比特取值为100～111所指示的MCS索引。
作为示例，所述8种MCS索引中的后四种MCS索引根据所述第三MCS参数所指示的4种MCS索引中的第4种MCS索引和四个不同的偏移量确定，其中，所述四个偏移量中的每个偏移量对应所述后四种MCS索引中的一个。即，后四种MCS索引可以是在第4种MCS索引的基础上加上不同的偏移量确定。例如，该4个偏移量可以分别为1，2，3，4。即第5～8种MCS索引可以是第4种MCS索引分别加上1，2，3，4得到。
在本申请另一些实施例中，S210可以包括：
根据所述第二MCS信息域中的目标比特(例如最低位3比特)中的2比特和所述第三MCS参数所指示的4种MCS索引，确定用于重传所述PUSCH的目标MCS。
在一些实施例中，所述目标比特中除所述2比特以外的另外1比特为空闲比特。
在另一些实施例中，所述另外1比特和所述MCS信息域中除所述3比特之外的另外2比特用于指示用于传输所述PUSCH的目标重复传输次数。此情况下，该目标重复传输次数集合可以包括8种重复传输次数信息。
可选地，该包含8种重复传输次数的目标重复传输次数集合可以是网络设备通过系统消息配置的。
可选地，如果网络设备没有配置目标重复传输次数集合，可以使用缺省重复传输次数集合确定目标重复传输次数，其中，缺省重复传输次数集合可以包括8种重复传输次数信息。例如，该缺省重复传输次数集合为{1,2,3,4,7,8,12,16}。
实施例3-2：
在一些实施例中，所述目标MCS参数包括第三缺省MCS参数，其中，所述第三缺省MCS参数为用于初传和重传所述PUSCH的缺省MCS参数。
即，在该实施例中，Msg3 PUSCH的初传和重传采用相同的缺省MCS参数。
在一些实施例中，所述第三缺省MCS参数用于指示8种MCS索引，所述8种MCS索引的取值范围为0至7。
在一些实施例中，对于Msg3 PUSCH的重传，S210可以包括：
在未配置所述第三MCS参数的情况下，根据所述第二MCS信息域中的目标比特(例如最低位3比特)和所述第三缺省MCS参数所指示的8种MCS索引，确定用于重传所述PUSCH的目标MCS，其中，所述目标比特用于指示表示所述8种MCS索引中的目标MCS索引。
例如，所述目标MCS索引所指示的MCS为用于重传所述PUSCH的目标MCS。
在一些实施例中，所述目标比特的取值用于指示目标MCS索引在所述8种MCS索引中的排序。
以第三缺省MCS参数指示MCS索引0～7为例，所述目标比特取值为000表示目标MCS索引为所述8种MCS索引中的MCS索引0，取值为001表示目标MCS为所述8种MCS索引中的MCS索引1，取值为010所述8种MCS索引中的MCS索引2，以此类推。
在一些实施例中，对于Msg3 PUSCH的初传，所述终端设备只使用所述第三缺省MCS参数所指示的8种MCS索引中的4种MCS索引，例如，前4种MCS索引。
在一些实施例中，对于Msg3 PUSCH的初传，S210可以包括：
根据所述第一MCS信息域中的目标比特(例如最低位2比特)和所述第三缺省MCS参数所指示的8种MCS索引中的前4种MCS索引，确定用于初传所述PUSCH的目标MCS，其中，所述2比特用于指示所述前4种MCS索引中的目标MCS索引。
以第三缺省MCS参数指示MCS索引0～7为例，所述2比特取值为00表示目标MCS索引为所述前4种MCS索引中的MCS索引0，取值为01表示目标MCS索引为所述前4种MCS索引中的 MCS索引1，取值为10表示目标MCS索引为所述前4种MCS索引中的MCS索引2，以此类推。
实施例3-3：
在一些实施例中，所述目标MCS参数包括第四缺省MCS参数，其中，所述第四缺省MCS参数为用于重传所述PUSCH的缺省MCS参数。
即，在该实施例中，Msg3 PUSCH的初传和重传采用独立的缺省MCS参数。
在一些实施例中，第三缺省MCS参数用于指示8种MCS索引，所述8种MCS索引的取值范围为0至7。
在一些实施例中，用于Msg3 PUSCH的初传的缺省MCS参数可以指示4种MCS索引，缺省值为0～3。
在一些实施例中，对于Msg3 PUSCH的重传，S210可以包括：
在未配置所述第三MCS参数的情况下，根据所述第二MCS信息域中的目标比特(例如最低位3比特)和所述第四缺省MCS参数所指示的8种MCS索引，确定用于重传所述PUSCH的目标MCS，其中，所述目标比特用于指示表示所述8种MCS索引中的目标MCS索引。
例如，所述目标MCS索引所指示的MCS为用于重传所述PUSCH的目标MCS。
在一些实施例中，所述目标比特的取值用于指示目标MCS索引在所述8种MCS索引中的排序。
以第四缺省MCS参数指示MCS索引0～7为例，所述目标比特取值为000表示目标MCS索引为所述8种MCS索引中的MCS索引0，取值为001表示目标MCS为所述8种MCS索引中的MCS索引1，取值为010所述8种MCS索引中的MCS索引2，以此类推。
实施例3-4：
在一些实施例中，所述目标MCS参数包括第五缺省MCS参数，其中，所述第五缺省MCS参数为用于初传和重传所述PUSCH的缺省MCS参数。
在该实施例中，Msg3 PUSCH的初传和重传采用相同缺省MCS参数。
在一些实施例中，第五缺省MCS参数，用于指示4种MCS索引，所述4种MCS索引的取值范围为0至4。
在本申请一些实施例中，对于Msg3 PUSCH的重传，S210可以包括：
在未配置所述第三MCS参数的情况下，根据所述第二MCS信息域中的目标比特(例如最低位3比特)和所述第五缺省MCS参数所指示的4种MCS索引，确定用于重传所述PUSCH的目标MCS，其中，所述目标比特用于指示表示所述4种MCS索引中的目标MCS索引。具体确定方式参考实施例3-1中根据第三MCS参数确定目标MCS的相关实现，为了简洁，这里不再赘述。
在本申请另一些实施例中，对于Msg3 PUSCH的重传，S210可以包括：
在未配置所述第三MCS参数的情况下，根据所述第二MCS信息域中的目标比特(例如最低位3比特)中的2比特和所述第五缺省MCS参数所指示的4种MCS索引，确定用于重传PUSCH的目标MCS。
在一些实施例中，所述目标比特中除所述2比特以外的另外1比特为空闲比特。
在另一些实施例中，所述另外1比特和所述MCS信息域中除所述3比特之外的另外2比特用于指示用于传输所述PUSCH的目标重复传输次数。此情况下，该目标重复传输次数集合可以包括8种重复传输次数信息。
可选地，该包含8种重复传输次数的目标重复传输次数集合可以是网络设备通过系统消息配置的。
可选地，如果网络设备没有配置目标重复传输次数集合，可以使用缺省重复传输次数集合确定目标重复传输次数，其中，缺省重复传输次数集合可以包括8种重复传输次数信息。例如，该缺省重复传输次数集合为{1,2,3,4,7,8,12,16}。
应理解，该实施例3中的缺省MCS参数的设计也可以适用于前述实施例1和实施例2中，例如，在网络设备配置的参数为第一MCS参数或第二MCS参数时，用于初传或重传所述PUSCH的缺省MCS参数可以采用实施例3-2至实施例3-4中的任一方式，本申请对此不作限定。
以所述目标MCS参数为第三MCS参数或第三缺省MCS参数或第四缺省MCS参数为例，第一MCS信息域中的最低位2比特，第二MCS信息域的最低位3比特的取值与所指示的8种MCS index I MCS的对应关系如表4所示。
表4
Figure PCTCN2022071119-appb-000006
因此，在本申请实施例中，可以针对Msg3 PUSCH的重传配置独立的MCS参数或缺省MCS参数，或者，也可以针对Msg3 PUSCH的重传和初传配置公共的MCS参数或缺省MCS参数，进一步地，可以根据Msg3 PUSCH的重传对应的MCS信息域结合该MCS参数或缺省MCS参数，确定目标MCS，有利于实现承载Msg3的PUSCH的重复传输，进而提升Msg3的传输性能。
上文结合图3，详细描述了本申请的方法实施例，下文结合图4至图8，详细描述本申请的装置实施例，应理解，装置实施例与方法实施例相互对应，类似的描述可以参照方法实施例。
图4示出了根据本申请实施例的终端设备400的示意性框图。如图4所示，该终端设备400包括：
处理单元410，用于根据目标调制编码方案MCS参数和目标MCS信息域，确定用于传输物理下行共享信道PUSCH的目标MCS，其中，所述目标MCS参数用于指示N种MCS索引，N为大于1的正整数，所述PUSCH用于承载随机接入过程中的第三条消息。
在一些实施例中，对于是所述PUSCH的初传，所述目标MCS信息域为承载于随机接入响应RAR上行授权中的第一MCS信息域；或者
对于所述PUSCH的重传，所述目标MCS信息域为承载于临时小区无线网络临时标识符TC-RNTI加扰的下行控制信息DCI格式0_0中的第二MCS信息域。
在一些实施例中，所述目标MCS参数包括第一MCS参数或第一缺省MCS参数，其中，所述第一MCS参数为专用于重传所述PUSCH的MCS参数，所述第一缺省MCS参数为专用于重传所述PUSCH的缺省MCS参数。
在一些实施例中，所述第一MCS参数用于指示8种MCS索引。
在一些实施例中，所述第一缺省MCS参数用于指示8种MCS索引，所述8种MCS索引的取值范围为0至7。
在一些实施例中，所述处理单元410还用于：
根据第二MCS信息域中的3比特和所述第一MCS参数所指示的8种MCS索引，确定用于重传所述PUSCH的目标MCS，其中，所述3比特用于指示所述8种MCS索引中的目标MCS索引；或者
在未配置所述第一MCS参数的情况下，根据所述第二MCS信息域中的3比特和所述第一缺省MCS参数所指示的8种MCS索引，确定用于重传PUSCH的目标MCS，其中，所述3比特用于指示所述8种MCS索引中的目标MCS索引。
在一些实施例中，所述目标MCS参数包括第二MCS参数或第二缺省MCS参数，其中，所述第二MCS参数为用于初传和重传所述PUSCH的MCS参数，所述第二缺省MCS参数为用于初传和重传所述PUSCH的缺省MCS参数。
在一些实施例中，所述第二MCS参数用于指示8种MCS索引。
在一些实施例中，所述第二缺省MCS参数用于指示8种MCS索引，所述8种MCS索引的取值范围为0至7。
在一些实施例中，所述处理单元410还用于：
根据第二MCS信息域中的3比特和所述第二MCS参数所指示的8种MCS索引，确定用于重传所述PUSCH的目标MCS，其中，所述3比特用于指示所述8种MCS索引中的目标MCS索引；或者
在未配置所述第二MCS参数的情况下，根据所述第二MCS信息域中的3比特和所述第二缺省MCS参数所指示的8种MCS索引，确定用于重传PUSCH的目标MCS，其中，所述3比特用于指示所述8种MCS索引中的目标MCS索引。
在一些实施例中，所述处理单元410还用于：
根据第一MCS信息域中的2比特和所述第二MCS参数所指示的8种MCS索引中的前4种MCS索引，确定用于初传所述PUSCH的目标MCS，其中，所述2比特用于指示所述前4种MCS索引中的目标MCS索引；或者
在未配置所述第二MCS参数的情况下，根据所述第一MCS信息域中的2比特和所述第二缺省MCS参数所指示的8种MCS索引中的前4种MCS索引，确定用于初传PUSCH的目标MCS，其中，所述2比特用于指示所述前4种MCS索引中的目标MCS索引。
在一些实施例中，所述目标MCS参数包括第三MCS参数、第三缺省MCS参数或第四缺省MCS参数，其中，所述第三MCS参数为用于初传和重传所述PUSCH的MCS参数，所述第三缺省MCS参数为用于初传和重传所述PUSCH的缺省MCS参数，或，所述第四缺省MCS参数为专用于重传所述PUSCH的缺省MCS参数。
在一些实施例中，所述第三MCS参数用于指示4种MCS索引。
在一些实施例中，所述第三缺省MCS参数用于指示8种MCS索引，所述8种MCS索引的取值范围为0至7；或者
所述第四缺省MCS参数用于指示8种MCS索引，所述8种MCS索引的取值范围为0至7。
在一些实施例中，所述处理单元410还用于：
根据所述第二MCS信息域中的3比特和所述第三MCS参数所指示的4种MCS索引，确定用于重传所述PUSCH的目标MCS；或者
在未配置所述第三MCS参数的情况下，根据所述第二MCS信息域中的3比特和所述第三缺省MCS参数或所述第四缺省MCS参数所指示的8种MCS索引，确定用于重传PUSCH的目标MCS。
在一些实施例中，所述3比特用于指示8种MCS索引，所述8种MCS索引中的前4种MCS索引对应所述第三MCS参数所指示的4种MCS索引，所述8种MCS索引中的后四种MCS索引根据所述第三MCS参数所指示的4种MCS索引中的至少一种MCS索引确定。
在一些实施例中，所述8种MCS索引中的后四种MCS索引根据所述第三MCS参数所指示的4种MCS索引中的第4种MCS索引和四个不同的偏移量确定，其中，所述四个偏移量中的每个偏移量对应所述后四种MCS索引中的一个。
在一些实施例中，所述处理单元410还用于：
根据第二MCS信息域中的3比特中的2比特和所述第三MCS参数所指示的4种MCS索引，确定用于重传所述PUSCH的目标MCS；或者
在未配置所述第三MCS参数的情况下，根据所述第二MCS信息域中的3比特中和所述第三缺省MCS参数或所述第四缺省MCS参数所指示的8种MCS索引，确定用于重传PUSCH的目标MCS。
在一些实施例中，所述3比特中除所述2比特以外的另外1比特为空闲比特，或者，所述另外1比特和所述MCS信息域中除所述3比特之外的另外2比特用于指示用于传输所述PUSCH的目标重复传输次数，所述目标重复传输次数属于目标重复传输次数集合或缺省目标重复传输次数集合，所述目标重复传输次数集合包括8种重复传输次数信息，所述缺省重复传输次数集合包括8种重复传输次数信息。
在一些实施例中，所述3比特为所述第二MCS信息域中的最低位3比特。
在一些实施例中，所述2比特为所述第一MCS信息域中的最低位2比特。
可选地，在一些实施例中，上述通信单元可以是通信接口或收发器，或者是通信芯片或者片上系统的输入输出接口。上述处理单元可以是一个或多个处理器。
应理解，根据本申请实施例的终端设备400可对应于本申请方法实施例中的终端设备，并且终端设备400中的各个单元的上述和其它操作和/或功能分别为了实现图3所示方法300中终端设备的相应流程，为了简洁，在此不再赘述。
图5是根据本申请实施例的网络设备的示意性框图。图5的网络设备500包括：
通信单元510，用于向终端设备发送目标调制编码方案MCS参数，所述目标MCS参数用于确定 传输物理下行共享信道PUSCH的目标MCS，其中，所述目标MCS参数用于指示N种MCS索引，N为大于1的正整数，所述PUSCH用于承载随机接入过程中的第三条消息。
在一些实施例中，所述目标MCS根据所述目标MCS参数和目标MCS信息域确定，其中，对于是所述PUSCH的初传，所述目标MCS信息域为承载于随机接入响应RAR上行授权中的第一MCS信息域，或者，对于所述PUSCH的重传，所述目标MCS信息域为承载于临时小区无线网络临时标识符TC-RNTI加扰的下行控制信息DCI格式0_0中的第二MCS信息域。
在一些实施例中，所述目标MCS参数包括第一MCS参数，其中，所述第一MCS参数为专用于重传所述PUSCH的MCS参数。
在一些实施例中，所述第一MCS参数用于指示8种MCS索引。
在一些实施例中，所述目标MCS参数包括第二MCS参数，其中，所述第二MCS参数为用于初传和重传所述PUSCH的MCS参数。
在一些实施例中，所述第二MCS参数用于指示8种MCS索引。
在一些实施例中，所述目标MCS参数包括第三MCS参数，其中，所述第三MCS参数为用于初传和重传所述PUSCH的MCS参数。
在一些实施例中，所述第三MCS参数用于指示4种MCS索引。
可选地，在一些实施例中，上述通信单元可以是通信接口或收发器，或者是通信芯片或者片上系统的输入输出接口。上述处理单元可以是一个或多个处理器。
应理解，根据本申请实施例的网络设备500可对应于本申请方法实施例中的网络设备，并且网络设备500中的各个单元的上述和其它操作和/或功能分别为了实现图3所示方法300中网络设备的相应流程，为了简洁，在此不再赘述。
图6是本申请实施例提供的一种通信设备600示意性结构图。图6所示的通信设备600包括处理器610，处理器610可以从存储器中调用并运行计算机程序，以实现本申请实施例中的方法。
可选地，如图6所示，通信设备600还可以包括存储器620。其中，处理器610可以从存储器620中调用并运行计算机程序，以实现本申请实施例中的方法。
其中，存储器620可以是独立于处理器610的一个单独的器件，也可以集成在处理器610中。
可选地，如图6所示，通信设备600还可以包括收发器630，处理器610可以控制该收发器630与其他设备进行通信，具体地，可以向其他设备发送信息或数据，或接收其他设备发送的信息或数据。
其中，收发器630可以包括发射机和接收机。收发器630还可以进一步包括天线，天线的数量可以为一个或多个。
可选地，该通信设备600具体可为本申请实施例的网络设备，并且该通信设备600可以实现本申请实施例的各个方法中由网络设备实现的相应流程，为了简洁，在此不再赘述。
可选地，该通信设备600具体可为本申请实施例的移动终端/终端设备，并且该通信设备600可以实现本申请实施例的各个方法中由移动终端/终端设备实现的相应流程，为了简洁，在此不再赘述。
图7是本申请实施例的芯片的示意性结构图。图7所示的芯片700包括处理器710，处理器710可以从存储器中调用并运行计算机程序，以实现本申请实施例中的方法。
可选地，如图7所示，芯片700还可以包括存储器720。其中，处理器710可以从存储器720中调用并运行计算机程序，以实现本申请实施例中的方法。
其中，存储器720可以是独立于处理器710的一个单独的器件，也可以集成在处理器710中。
可选地，该芯片700还可以包括输入接口730。其中，处理器710可以控制该输入接口730与其他设备或芯片进行通信，具体地，可以获取其他设备或芯片发送的信息或数据。
可选地，该芯片700还可以包括输出接口740。其中，处理器710可以控制该输出接口740与其他设备或芯片进行通信，具体地，可以向其他设备或芯片输出信息或数据。
可选地，该芯片可应用于本申请实施例中的网络设备，并且该芯片可以实现本申请实施例的各个方法中由网络设备实现的相应流程，为了简洁，在此不再赘述。
可选地，该芯片可应用于本申请实施例中的移动终端/终端设备，并且该芯片可以实现本申请实施例的各个方法中由移动终端/终端设备实现的相应流程，为了简洁，在此不再赘述。
应理解，本申请实施例提到的芯片还可以称为系统级芯片，系统芯片，芯片系统或片上系统芯片等。
图8是本申请实施例提供的一种通信系统900的示意性框图。如图8所示，该通信系统900包括终端设备910和网络设备920。
其中，该终端设备910可以用于实现上述方法中由终端设备实现的相应的功能，以及该网络设备920可以用于实现上述方法中由网络设备实现的相应的功能为了简洁，在此不再赘述。
应理解，本申请实施例的处理器可能是一种集成电路芯片，具有信号的处理能力。在实现过程中，上述方法实施例的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器可以是通用处理器、数字信号处理器(Digital Signal Processor，DSP)、专用集成电路(Application Specific Integrated Circuit，ASIC)、现成可编程门阵列(Field Programmable Gate Array，FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。可以实现或者执行本申请实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。结合本申请实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成，或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器，处理器读取存储器中的信息，结合其硬件完成上述方法的步骤。
可以理解，本申请实施例中的存储器可以是易失性存储器或非易失性存储器，或可包括易失性和非易失性存储器两者。其中，非易失性存储器可以是只读存储器(Read-Only Memory，ROM)、可编程只读存储器(Programmable ROM，PROM)、可擦除可编程只读存储器(Erasable PROM，EPROM)、电可擦除可编程只读存储器(Electrically EPROM，EEPROM)或闪存。易失性存储器可以是随机存取存储器(Random Access Memory，RAM)，其用作外部高速缓存。通过示例性但不是限制性说明，许多形式的RAM可用，例如静态随机存取存储器(Static RAM，SRAM)、动态随机存取存储器(Dynamic RAM，DRAM)、同步动态随机存取存储器(Synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(Double Data Rate SDRAM，DDR SDRAM)、增强型同步动态随机存取存储器(Enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(Synchlink DRAM，SLDRAM)和直接内存总线随机存取存储器(Direct Rambus RAM，DR RAM)。应注意，本文描述的系统和方法的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
应理解，上述存储器为示例性但不是限制性说明，例如，本申请实施例中的存储器还可以是静态随机存取存储器(static RAM，SRAM)、动态随机存取存储器(dynamic RAM，DRAM)、同步动态随机存取存储器(synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(double data rate SDRAM，DDR SDRAM)、增强型同步动态随机存取存储器(enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(synch link DRAM，SLDRAM)以及直接内存总线随机存取存储器(Direct Rambus RAM，DR RAM)等等。也就是说，本申请实施例中的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
本申请实施例还提供了一种计算机可读存储介质，用于存储计算机程序。
可选的，该计算机可读存储介质可应用于本申请实施例中的网络设备，并且该计算机程序使得计算机执行本申请实施例的各个方法中由网络设备实现的相应流程，为了简洁，在此不再赘述。
可选地，该计算机可读存储介质可应用于本申请实施例中的移动终端/终端设备，并且该计算机程序使得计算机执行本申请实施例的各个方法中由移动终端/终端设备实现的相应流程，为了简洁，在此不再赘述。
本申请实施例还提供了一种计算机程序产品，包括计算机程序指令。
可选的，该计算机程序产品可应用于本申请实施例中的网络设备，并且该计算机程序指令使得计算机执行本申请实施例的各个方法中由网络设备实现的相应流程，为了简洁，在此不再赘述。
可选地，该计算机程序产品可应用于本申请实施例中的移动终端/终端设备，并且该计算机程序指令使得计算机执行本申请实施例的各个方法中由移动终端/终端设备实现的相应流程，为了简洁，在此不再赘述。
本申请实施例还提供了一种计算机程序。
可选的，该计算机程序可应用于本申请实施例中的网络设备，当该计算机程序在计算机上运行时，使得计算机执行本申请实施例的各个方法中由网络设备实现的相应流程，为了简洁，在此不再赘述。
可选地，该计算机程序可应用于本申请实施例中的移动终端/终端设备，当该计算机程序在计算机上运行时，使得计算机执行本申请实施例的各个方法中由移动终端/终端设备实现的相应流程，为了简洁，在此不再赘述。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统、装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应所述以权利要求的保护范围为准。

Claims (37)

  1. 一种无线通信的方法，其特征在于，包括：
    终端设备根据目标调制编码方案MCS参数和目标MCS信息域，确定用于传输物理下行共享信道PUSCH的目标MCS，其中，所述目标MCS参数用于指示N种MCS索引，N为大于1的正整数，所述PUSCH用于承载随机接入过程中的第三条消息。
  2. 根据权利要求1所述的方法，其特征在于，对于是所述PUSCH的初传，所述目标MCS信息域为承载于随机接入响应RAR上行授权中的第一MCS信息域；或者
    对于所述PUSCH的重传，所述目标MCS信息域为承载于临时小区无线网络临时标识符TC-RNTI加扰的下行控制信息DCI格式0_0中的第二MCS信息域。
  3. 根据权利要求1或2所述的方法，其特征在于，所述目标MCS参数包括第一MCS参数或第一缺省MCS参数，其中，所述第一MCS参数为专用于重传所述PUSCH的MCS参数，所述第一缺省MCS参数为专用于重传所述PUSCH的缺省MCS参数。
  4. 根据权利要求3所述的方法，其特征在于，所述第一MCS参数用于指示8种MCS索引。
  5. 根据权利要求3或4所述的方法，其特征在于，所述第一缺省MCS参数用于指示8种MCS索引，所述8种MCS索引的取值范围为0至7。
  6. 根据权利要求3-5中任一项所述的方法，其特征在于，所述终端设备根据目标调制编码方案MCS参数和目标MCS信息域确定用于传输物理下行共享信道PUSCH的目标MCS，包括：
    根据第二MCS信息域中的3比特和所述第一MCS参数所指示的8种MCS索引，确定用于重传所述PUSCH的目标MCS，其中，所述3比特用于指示所述8种MCS索引中的目标MCS索引；或者
    在未配置所述第一MCS参数的情况下，根据所述第二MCS信息域中的3比特和所述第一缺省MCS参数所指示的8种MCS索引，确定用于重传PUSCH的目标MCS，其中，所述3比特用于指示所述8种MCS索引中的目标MCS索引。
  7. 根据权利要求1或2所述的方法，其特征在于，所述目标MCS参数包括第二MCS参数或第二缺省MCS参数，其中，所述第二MCS参数为用于初传和重传所述PUSCH的MCS参数，所述第二缺省MCS参数为用于初传和重传所述PUSCH的缺省MCS参数。
  8. 根据权利要求7所述的方法，其特征在于，所述第二MCS参数用于指示8种MCS索引。
  9. 根据权利要求7或8所述的方法，其特征在于，所述第二缺省MCS参数用于指示8种MCS索引，所述8种MCS索引的取值范围为0至7。
  10. 根据权利要求7-9中任一项所述的方法，其特征在于，所述终端设备根据目标调制编码方案MCS参数和目标MCS信息域确定用于传输物理下行共享信道PUSCH的目标MCS，包括：
    根据第二MCS信息域中的3比特和所述第二MCS参数所指示的8种MCS索引，确定用于重传所述PUSCH的目标MCS，其中，所述3比特用于指示所述8种MCS索引中的目标MCS索引；或者
    在未配置所述第二MCS参数的情况下，根据所述第二MCS信息域中的3比特和所述第二缺省MCS参数所指示的8种MCS索引，确定用于重传PUSCH的目标MCS，其中，所述3比特用于指示所述8种MCS索引中的目标MCS索引。
  11. 根据权利要求7-10中任一项所述的方法，其特征在于，所述终端设备根据目标调制编码方案MCS参数和目标MCS信息域确定用于传输物理下行共享信道PUSCH的目标MCS，包括：
    根据第一MCS信息域中的2比特和所述第二MCS参数所指示的8种MCS索引中的前4种MCS索引，确定用于初传所述PUSCH的目标MCS，其中，所述2比特用于指示所述前4种MCS索引中的目标MCS索引；或者
    在未配置所述第二MCS参数的情况下，根据所述第一MCS信息域中的2比特和所述第二缺省MCS参数所指示的8种MCS索引中的前4种MCS索引，确定用于初传PUSCH的目标MCS，其中，所述2比特用于指示所述前4种MCS索引中的目标MCS索引。
  12. 根据权利要求1或2所述的方法，其特征在于，所述目标MCS参数包括第三MCS参数、第三缺省MCS参数或第四缺省MCS参数，其中，所述第三MCS参数为用于初传和重传所述PUSCH的MCS参数，所述第三缺省MCS参数为用于初传和重传所述PUSCH的缺省MCS参数，或，所述第四缺省MCS参数为专用于重传所述PUSCH的缺省MCS参数。
  13. 根据权利要求12所述的方法，其特征在于，所述第三MCS参数用于指示4种MCS索引。
  14. 根据权利要求12或13所述的方法，其特征在于，所述第三缺省MCS参数用于指示8种MCS索引，所述8种MCS索引的取值范围为0至7；或者
    所述第四缺省MCS参数用于指示8种MCS索引，所述8种MCS索引的取值范围为0至7。
  15. 根据权利要求12-14中任一项所述的方法，其特征在于，所述终端设备根据目标调制编码方案MCS参数和目标MCS信息域确定用于传输物理下行共享信道PUSCH的目标MCS，包括：
    根据第二MCS信息域中的3比特和所述第三MCS参数所指示的4种MCS索引，确定用于重传所述PUSCH的目标MCS；或者
    在未配置所述第三MCS参数的情况下，根据所述第二MCS信息域中的3比特和所述第三缺省MCS参数或所述第四缺省MCS参数所指示的8种MCS索引，确定用于重传PUSCH的目标MCS。
  16. 根据权利要求15所述的方法，其特征在于，所述3比特用于指示8种MCS索引，所述8种MCS索引中的前4种MCS索引对应所述第三MCS参数所指示的4种MCS索引，所述8种MCS索引中的后四种MCS索引根据所述第三MCS参数所指示的4种MCS索引中的至少一种MCS索引确定。
  17. 根据权利要求16所述的方法，其特征在于，所述8种MCS索引中的后四种MCS索引根据所述第三MCS参数所指示的4种MCS索引中的第4种MCS索引和四个不同的偏移量确定，其中，所述四个偏移量中的每个偏移量对应所述后四种MCS索引中的一个。
  18. 根据权利要求12-14中任一项所述的方法，其特征在于，所述终端设备根据目标调制编码方案MCS参数和目标MCS信息域确定用于传输物理下行共享信道PUSCH的目标MCS，包括：
    根据第二MCS信息域中的3比特中的2比特和所述第三MCS参数所指示的4种MCS索引，确定用于重传所述PUSCH的目标MCS；或者
    在未配置所述第三MCS参数的情况下，根据所述第二MCS信息域中的3比特中和所述第三缺省MCS参数或所述第四缺省MCS参数所指示的8种MCS索引，确定用于重传PUSCH的目标MCS。
  19. 根据权利要求18所述的方法，其特征在于，所述3比特中除所述2比特以外的另外1比特为空闲比特，或者，所述另外1比特和所述MCS信息域中除所述3比特之外的另外2比特用于指示用于传输所述PUSCH的目标重复传输次数，所述目标重复传输次数属于目标重复传输次数集合或缺省目标重复传输次数集合，所述目标重复传输次数集合包括8种重复传输次数信息，所述缺省重复传输次数集合包括8种重复传输次数信息。
  20. 根据权利要求6、10、15或18所述的方法，其特征在于，所述3比特为所述第二MCS信息域中的最低位3比特。
  21. 根据权利要求11所述的方法，其特征在于，所述2比特为所述第一MCS信息域中的最低位2比特。
  22. 一种无线通信的方法，其特征在于，包括：
    网络设备向终端设备发送目标调制编码方案MCS参数，所述目标MCS参数用于确定传输物理下行共享信道PUSCH的目标MCS，其中，所述目标MCS参数用于指示N种MCS索引，N为大于1的正整数，所述PUSCH用于承载随机接入过程中的第三条消息。
  23. 根据权利要求22所述的方法，其特征在于，所述目标MCS根据所述目标MCS参数和目标MCS信息域确定，其中，对于是所述PUSCH的初传，所述目标MCS信息域为承载于随机接入响应RAR上行授权中的第一MCS信息域，或者，对于所述PUSCH的重传，所述目标MCS信息域为承载于临时小区无线网络临时标识符TC-RNTI加扰的下行控制信息DCI格式0_0中的第二MCS信息域。
  24. 根据权利要求22或23所述的方法，其特征在于，所述目标MCS参数包括第一MCS参数，其中，所述第一MCS参数为专用于重传所述PUSCH的MCS参数。
  25. 根据权利要求24所述的方法，其特征在于，所述第一MCS参数用于指示8种MCS索引。
  26. 根据权利要求22或23所述的方法，其特征在于，所述目标MCS参数包括第二MCS参数，其中，所述第二MCS参数为用于初传和重传所述PUSCH的MCS参数。
  27. 根据权利要求26所述的方法，其特征在于，所述第二MCS参数用于指示8种MCS索引。
  28. 根据权利要求22或23所述的方法，其特征在于，所述目标MCS参数包括第三MCS参数，其中，所述第三MCS参数为用于初传和重传所述PUSCH的MCS参数。
  29. 根据权利要求28所述的方法，其特征在于，所述第三MCS参数用于指示4种MCS索引。
  30. 一种终端设备，其特征在于，包括：
    处理单元，用于根据目标调制编码方案MCS参数和目标MCS信息域，确定用于传输物理下行共享信道PUSCH的目标MCS，其中，所述目标MCS参数用于指示N种MCS索引，N为大于1的正整数，所述PUSCH用于承载随机接入过程中的第三条消息。
  31. 一种网络设备，其特征在于，包括：
    通信单元，用于向终端设备发送目标调制编码方案MCS参数，所述目标MCS参数用于确定传输物理下行共享信道PUSCH的目标MCS，其中，所述目标MCS参数用于指示N种MCS索引，N为大于1的正整数，所述PUSCH用于承载随机接入过程中的第三条消息。
  32. 一种终端设备，其特征在于，包括：处理器和存储器，该存储器用于存储计算机程序，所述处理器用于调用并运行所述存储器中存储的计算机程序，执行如权利要求1至21中任一项所述的方法。
  33. 一种网络设备，其特征在于，包括：处理器和存储器，该存储器用于存储计算机程序，所述处理器用于调用并运行所述存储器中存储的计算机程序，执行如权利要求22至29中任一项所述的方法。
  34. 一种芯片，其特征在于，包括：处理器，用于从存储器中调用并运行计算机程序，使得安装有所述芯片的设备执行如权利要求1至21中任一项所述的方法，或如权利要求22至29中任一项所述的方法。
  35. 一种计算机可读存储介质，其特征在于，用于存储计算机程序，所述计算机程序使得计算机执行如权利要求1至21中任一项所述的方法，或如权利要求22至29中任一项所述的方法。
  36. 一种计算机程序产品，其特征在于，包括计算机程序指令，该计算机程序指令使得计算机执行如权利要求1至21中任一项所述的方法，或如权利要求22至29中任一项所述的方法。
  37. 一种计算机程序，其特征在于，所述计算机程序使得计算机执行如权利要求1至21中任一项所述的方法，或如权利要求22至29中任一项所述的方法。
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106105077A (zh) * 2014-01-30 2016-11-09 阿尔卡特朗讯 在覆盖增强区域中使用重复机制的通信技术
US20190075492A1 (en) * 2015-10-29 2019-03-07 Sharp Kabushiki Kaisha Terminal device, base station device, communication method, and integrated circuit
CN110798286A (zh) * 2018-08-03 2020-02-14 电信科学技术研究院有限公司 一种数据重传方法、装置及终端
CN111865501A (zh) * 2019-04-25 2020-10-30 中国移动通信有限公司研究院 数据重传方法、接收方法、终端及网络设备

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106105077A (zh) * 2014-01-30 2016-11-09 阿尔卡特朗讯 在覆盖增强区域中使用重复机制的通信技术
US20190075492A1 (en) * 2015-10-29 2019-03-07 Sharp Kabushiki Kaisha Terminal device, base station device, communication method, and integrated circuit
CN110798286A (zh) * 2018-08-03 2020-02-14 电信科学技术研究院有限公司 一种数据重传方法、装置及终端
CN111865501A (zh) * 2019-04-25 2020-10-30 中国移动通信有限公司研究院 数据重传方法、接收方法、终端及网络设备

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