WO2022077481A1 - Procédé et appareil de transmission de canal - Google Patents

Procédé et appareil de transmission de canal Download PDF

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Publication number
WO2022077481A1
WO2022077481A1 PCT/CN2020/121636 CN2020121636W WO2022077481A1 WO 2022077481 A1 WO2022077481 A1 WO 2022077481A1 CN 2020121636 W CN2020121636 W CN 2020121636W WO 2022077481 A1 WO2022077481 A1 WO 2022077481A1
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Prior art keywords
information
dci
same
terminal device
different
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PCT/CN2020/121636
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English (en)
Chinese (zh)
Inventor
吴作敏
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Oppo广东移动通信有限公司
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Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Priority to PCT/CN2020/121636 priority Critical patent/WO2022077481A1/fr
Priority to CN202080105031.7A priority patent/CN116114299A/zh
Publication of WO2022077481A1 publication Critical patent/WO2022077481A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/04—Error control

Definitions

  • the present invention relates to the technical field of communication, and in particular, to the technical field of channel transmission.
  • Satellite communication is generally used to provide communication services to terrestrial users.
  • satellite communication has many unique advantages, such as: it is not limited by the user's geographical area, the communication distance is long, and the stability is high.
  • the RTT of signal transmission is large.
  • the RTT of signal transmission may be in the order of 100 milliseconds, for example, the RTT of signal transmission may be about 600 ms at most.
  • the RTT of signal transmission can be in the order of tens of milliseconds. That is, the RTT of the NTN system is much larger than the RTT of the terrestrial communication system.
  • This enhancement includes disabling the HARQ process.
  • the network device may configure disabling for one or some downlink HARQ processes of the terminal device. For a downlink HARQ process that is configured to be disabled, the network device can reuse the HARQ process for data transmission without receiving the HARQ-ACK information corresponding to the TB transmitted in the HARQ process.
  • the network device may also configure disabling for one or some uplink HARQ processes of the terminal device. For an uplink HARQ process that is configured to be disabled, the network device can reuse the HARQ process to transmit other PUSCHs without receiving the PUSCH transmitted by the terminal device through the HARQ process.
  • the physical channel transmission scheduled by reusing the HARQ process may be a new transmission or a retransmission. If the physical channel transmission scheduled by reusing the HARQ process is retransmission, it can be considered as channel blind retransmission.
  • the present invention provides a channel blind retransmission method, the terminal device and the network device thereof, which can make the terminal device and the network device have a consistent understanding of data transmission.
  • a method for channel transmission comprising: a terminal device receiving first downlink control information DCI, the first DCI scheduling a first hybrid automatic repeat request (HARQ) process to transmit a first physical channel carrying a first transport block TB,
  • the first DCI corresponds to the first information; when the first new data in the first DCI indicates that the NDI information is the same as the second NDI information, the terminal device determines the first TB and the second NDI according to the first information Whether the two TBs are the same; wherein, the second NDI is the NDI in the second DCI, and the second DCI is the previous transmission used to schedule the first HARQ process received by the terminal device to carry the second DCI of the second physical channel of the TB.
  • HARQ hybrid automatic repeat request
  • a channel transmission apparatus comprising: a receiving unit configured to receive first downlink control information DCI, wherein the first DCI schedules a first hybrid automatic repeat request (HARQ) process to transmit a first physical channel carrying a first transport block TB , the first DCI corresponds to the first information; the confirmation unit is configured to determine the first information according to the first information when the first new data in the first DCI indicates that the NDI information is the same as the second NDI information Whether the TB is the same as the second TB; wherein, the second NDI is the NDI in the second DCI, and the second DCI is the last time received by the receiving unit for scheduling the first HARQ process transmission bearer; the DCI of the second physical channel of the second TB.
  • HARQ hybrid automatic repeat request
  • a channel transmission device comprising: a processor and a memory; the processor invokes a program in the memory to execute any one of the above channel transmission methods.
  • a chip includes: a processor for calling and running a computer program from a memory, and a device installed with the chip executes any one of the above channel transmission methods.
  • a computer-readable storage medium characterized in that a program for an uplink transmission method is stored on the computer-readable storage medium, and when the program for an uplink transmission method is executed by a processor, any one of the above channel transmissions is implemented method.
  • a computer program product wherein the computer program product is stored in a non-transitory computer-readable storage medium, and when the computer program is executed, any one of the above channel transmission methods is implemented.
  • the beneficial effect of the present invention is that: in the channel transmission process, the first information is introduced to further judge whether the first TB and the second TB are the same, that is, to judge whether it is a retransmission or a new transmission. Therefore, when the HARQ process is disabled, due to the large RTT, only the NDI information is used to determine whether the retransmission or the new transmission is used, resulting in inconsistent understanding between the network device and the terminal device. Thus, the accuracy of channel transmission is improved.
  • FIG. 1A is a schematic structural diagram of a communication system provided by an embodiment of the present application.
  • FIG. 1B is a schematic structural diagram of another communication system provided by an embodiment of the present application.
  • FIG. 1C is a schematic structural diagram of another communication system provided by an embodiment of the present application.
  • FIG. 2 is a schematic diagram of the relationship between the number of HARQ processes supported by a terminal device and RTT.
  • FIG. 3 is a schematic diagram of data transmission of a HARQ process configured to disable HARQ-ACK feedback.
  • FIG. 4 is a flowchart of a channel transmission method according to Embodiment 1 of the present application.
  • FIG. 5 is a schematic diagram of a module of a channel transmission apparatus according to Embodiment 2 of the present application.
  • FIG. 6 is a schematic circuit diagram of a channel transmission apparatus provided by Embodiment 3 of the present application.
  • GSM Global System of Mobile communication
  • CDMA Code Division Multiple Access
  • CDMA Wideband Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • LTE-A Advanced Long Term Evolution
  • NR New Radio
  • NTN Non-Terrestrial Networks
  • UMTS Universal Mobile Telecommunication System
  • WLAN Wireless Local Area Networks
  • Wireless Fidelity Wireless Fidelity
  • WiFi fifth-generation communication
  • D2D Device to Device
  • M2M Machine to Machine
  • MTC Machine Type Communication
  • V2V Vehicle to Vehicle
  • V2X Vehicle to everything
  • the communication system in this embodiment of the present application may be applied to a carrier aggregation (Carrier Aggregation, CA) scenario, a dual connectivity (Dual Connectivity, DC) scenario, or a standalone (Standalone, SA) distribution. web scene.
  • Carrier Aggregation, CA Carrier Aggregation, CA
  • DC Dual Connectivity
  • SA standalone
  • 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 unshared spectrum.
  • the embodiments of the present application may be applied to a non-terrestrial communication network (Non-Terrestrial Networks, NTN) system, and may also be applied to a terrestrial communication network (Terrestrial Networks, TN) system.
  • NTN non-terrestrial communication network
  • TN terrestrial communication network
  • the embodiments of the present application describe various embodiments in conjunction with network equipment and terminal equipment, where the terminal equipment may also be referred to as user equipment (User Equipment, UE), access terminal, subscriber unit, subscriber 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 subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device, etc.
  • the terminal device may be a station (STATION, ST) in the WLAN, and may be a cellular phone, a cordless phone, a Session Initiation Protocol (Session Initiation Protocol, SIP) phone, a Wireless Local Loop (WLL) station, a personal digital assistant (Personal Digital Assistant, PDA) devices, handheld devices with wireless communication capabilities, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, next-generation communication systems such as end 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 airplanes, 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, and 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, etc.
  • a mobile phone Mobile Phone
  • a tablet computer Pad
  • a computer with a wireless transceiver function a virtual reality (Virtual Reality, VR) terminal device
  • 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, etc.
  • the terminal equipment involved in the embodiments of this application may also be referred to as terminal, user equipment (UE), access terminal equipment, vehicle-mounted terminal, industrial control terminal, UE unit, UE station, mobile station, mobile station, and remote station , remote terminal equipment, mobile equipment, UE terminal equipment, wireless communication equipment, UE proxy or UE device, etc.
  • Terminal devices can also be stationary or mobile.
  • the terminal device may also be a wearable device.
  • Wearable devices can also be called wearable smart devices, which are the general term for the intelligent design of daily wear and the development of wearable devices using wearable technology, 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 device is not only a hardware device, but also realizes powerful functions through software support, data interaction, and cloud interaction.
  • wearable smart devices include full-featured, large-scale, complete or partial functions without relying on smart phones, such as smart watches or smart glasses, and only focus on a certain type of application function, which needs to cooperate with other devices such as smart phones.
  • the network device may be a device for communicating with a mobile device, and the network device may be an access point (Access Point, AP) in WLAN, or a base station (Base Transceiver Station, BTS) in GSM or CDMA , it can also be a base station (NodeB, NB) in WCDMA, it can also be an evolved base station (Evolutional Node B, eNB or eNodeB) in LTE, or a relay station or access point, or in-vehicle equipment, wearable devices and NR networks
  • the network device may have a mobile feature, for example, the network device may be a mobile device.
  • the network device may be a satellite or a balloon station.
  • the satellite may be a low earth orbit (LEO) satellite, a medium earth orbit (MEO) satellite, a geostationary earth orbit (GEO) satellite, a High Elliptical Orbit (HEO) ) satellite etc.
  • the network device may also be a base station set in a location such as land or water.
  • a network device may provide services for a cell, and a terminal device communicates with the network device through transmission resources (for example, frequency domain resources, or spectrum resources) used by the cell, and the cell may be a network device (
  • the cell can belong to the macro base station, or it can belong to the base station corresponding to the small cell (Small cell).
  • Pico cell Femto 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.
  • FIG. 1A is a schematic structural diagram of a communication system provided by an embodiment of the present application.
  • the communication system 100 may include a network device 110 , and the network device 110 may be a device that communicates with a terminal device 120 (or referred to as a communication terminal, a terminal).
  • the network device 110 may provide communication coverage for a particular geographic area, and may communicate with terminal devices located within the coverage area.
  • FIG. 1A exemplarily shows one network device and two terminal devices.
  • the communication system 100 may include multiple network devices and the coverage of each network device may include other numbers of terminal devices.
  • the present application The embodiment does not limit this.
  • FIG. 1B is a schematic structural diagram of another communication system provided by an embodiment of the present application.
  • a terminal device 1101 and a satellite 1102 are included, and wireless communication can be performed between the terminal device 1101 and the satellite 1102 .
  • the network formed between the terminal device 1101 and the satellite 1102 may also be referred to as NTN.
  • the satellite 1102 can function as a base station, and the terminal device 1101 and the satellite 1102 can communicate directly. Under the system architecture, satellite 1102 may be referred to as a network device.
  • the communication system may include multiple network devices 1102, and the coverage of each network device 1102 may include other numbers of terminal devices, which are not limited in this embodiment of the present application.
  • FIG. 1C is a schematic structural diagram of another communication system provided by an embodiment of the present application.
  • a terminal device 1201 including a terminal device 1201 , a satellite 1202 and a base station 1203 , the terminal device 1201 and the satellite 1202 can communicate wirelessly, and the satellite 1202 and the base station 1203 can communicate.
  • the network formed between the terminal device 1201, the satellite 1202 and the base station 1203 may also be referred to as NTN.
  • the satellite 1202 may not have the function of the base station, and the communication between the terminal device 1201 and the base station 1203 needs to be relayed by the satellite 1202 .
  • the base station 1203 may be referred to as a network device.
  • the communication system may include multiple network devices 1203, and the coverage of each network device 1203 may include other numbers of terminal devices, which are not limited in this embodiment of the present application.
  • FIG. 1A-FIG. 1C merely illustrate the system to which the present application applies.
  • the methods shown in the embodiments of the present application may also be applied to other systems, such as a 5G communication system, an LTE communication system, etc. , which is not specifically limited in the embodiments of the present application.
  • the wireless communication system shown in FIG. 1A-FIG. 1C may further include other network entities such as a mobility management entity (Mobility Management Entity, MME), an access and mobility management function (Access and Mobility Management Function, AMF). , which is not limited in the embodiments of the present application.
  • MME Mobility Management Entity
  • AMF Access and Mobility Management Function
  • a device having a communication function in the network/system may be referred to as a communication device.
  • the communication device may include a network device 110 and a terminal device 120 with a communication function, and the network device 110 and the terminal device 120 may be the specific devices described above, which will not be repeated here.
  • the communication device may also include other devices in the communication system 100, such as other network entities such as a network controller, a mobility management entity, etc., which are not limited in this embodiment of the present application.
  • corresponding may indicate that there is a direct or indirect corresponding relationship between the two, or may indicate that there is an associated relationship between the two, or indicate and be instructed, configure and be instructed configuration, etc.
  • NTN Non Terrestrial Network, non-terrestrial communication network equipment
  • LEO Low-Earth Orbit
  • MEO Medium-Earth Orbit
  • GEO Global-Earth Orbit, geosynchronous orbit
  • HEO High Elliptical Orbit, high elliptical orbit
  • the main research at this stage is LEO and GEO.
  • the altitude of LEO satellites ranges from 500km to 1500km, and the corresponding orbital period is about 1.5 hours to 2 hours.
  • the signal propagation delay of single-hop communication between users is generally less than 20ms.
  • the GEO satellite orbits at an altitude of 35,786 km and orbits the earth for a period of 24 hours.
  • the signal propagation delay of single-hop communication between users is generally 250ms. Therefore, the RTT (Round Trip Time, round trip transmission time) of the NTN system is much larger than the RTT of the terrestrial communication system.
  • HARQ Hybrid Automatic Repeat Request
  • a Stop-and-Wait Protocol (Stop-and-Wait Protocol) is used to send data.
  • TB Transport Block, transport block
  • TB Transport Block, transport block
  • the sender stops and waits for confirmation information.
  • the sender stops and waits for an acknowledgment after each transmission, resulting in low user throughput. Therefore, NR uses multiple parallel HARQ processes.
  • the sender can use another HARQ process to continue sending data.
  • These HARQ processes collectively form a HARQ entity, and the HARQ entity combines the stop-and-wait protocol to allow continuous data transmission.
  • HARQ is divided into uplink HARQ and downlink HARQ. Uplink HARQ is for uplink data transmission, and downlink HARQ is for downlink data transmission. The two are independent of each other.
  • the terminal equipment has its own HARQ entity corresponding to each serving cell.
  • Each HARQ entity maintains a set of parallel downlink HARQ processes and a set of parallel uplink HARQ processes.
  • each uplink and downlink carrier supports a maximum of 16 HARQ processes.
  • the base station may indicate the maximum number of HARQ processes to the terminal equipment through RRC signaling semi-static configuration according to the deployment of network equipment. If the network device does not provide corresponding configuration parameters, the default number of HARQ processes in downlink is 8, and the maximum number of HARQ processes supported by each uplink carrier is always 16.
  • Figure 2 illustrates the relationship between the number of supported HARQ processes and RTT as an example of downlink transmission.
  • the maximum number of HARQ processes configured on a terminal device is 16, then if the RTT is less than 16ms, the maximum throughput of the terminal device will not be affected. Yes, there can be parallel HARQ processes for data transmission. Of course, if the RTT is much greater than 16ms, then all HARQ processes of the terminal device may be used for data transmission, and no feedback from the network device is obtained, resulting in the situation that the terminal device has services to be transmitted but no HARQ process can be used. , which will affect the throughput of data transmission on the terminal device side.
  • the HARQ mechanism is not applicable to NTN system. Therefore, the HARQ mechanism of the above-mentioned NR system is enhanced.
  • the enhancement includes disabling the HARQ process.
  • the network device may configure disabling for one or some downlink HARQ processes of the terminal device. For a downlink HARQ process that is configured to be disabled, the network device can reuse the HARQ process for data transmission without receiving the HARQ-ACK information corresponding to the TB transmitted in the HARQ process.
  • the network device may also configure disabling for one or some uplink HARQ processes of the terminal device. For an uplink HARQ process that is configured to be disabled, the network device can reuse the HARQ process to transmit other PUSCHs without receiving the PUSCH transmitted by the terminal device through the HARQ process.
  • the network device can use the disabled downlink/uplink HARQ process to schedule multiple downlink/uplink data packets for the terminal device, thereby increasing the data transmission throughput and reducing the impact of RTT.
  • the physical channel transmission scheduled by the reused HARQ process may be a new transmission or a retransmission. If the physical channel transmission scheduled by reusing the HARQ process is retransmission, it can be considered as channel blind retransmission.
  • Channel blind retransmission is a technique to improve the reliability of data transmission.
  • transmission methods such as slot aggregation, repeated transmission, and scheduled blind retransmission can be used for the same transmission block to improve data. Transmission reliability.
  • the network device can use DCI 0, DCI 1 and DCI 2 to schedule the transmission of PDSCH 0, PDSCH 1 and PDSCH 2.
  • the terminal device receives the flip of the NDI information in the DCI scheduled by the network device for the HARQ process 7, it indicates that the HARQ process 7 is used to transmit new data packets.
  • the terminal device receives that the NDI information in the DCI scheduled by the network device for the HARQ process 7 is not flipped, it means that the HARQ process 7 is used to transmit the retransmission of the last data packet.
  • the terminal device when the terminal device only receives DCI 0 and DCI 2, but not DCI 1, the terminal device will think that the transport block carried in PDSCH 2 is the same as the transport block carried in PDSCH 0, but in fact, the network device The transmitted transport block carried in PDSCH 2 and the transport block carried in PDSCH 0 are different transport blocks, resulting in inconsistent understanding between the terminal device and the network device.
  • a channel transmission method provided by Embodiment 1 of the present application includes:
  • the terminal device receives the first downlink control information DCI (Downlink Control Information, downlink control information), the first DCI schedules the first hybrid automatic repeat request HARQ process to transmit the first physical channel carrying the first transport block TB, the first DCI corresponds to the first information;
  • DCI Downlink Control Information, downlink control information
  • the terminal device determines whether the first TB and the second TB are the same according to the first information; wherein, the second NDI is the NDI in the second DCI, and the second DCI is received by the terminal device
  • the previous time is used to schedule the first HARQ (Hybrid Automatic Repeat Request, hybrid automatic repeat request) process to transmit the DCI of the second physical channel carrying the second TB.
  • HARQ Hybrid Automatic Repeat Request, hybrid automatic repeat request
  • the terminal device when the NDI information in the first DCI is the same as the second NDI information, the first TB and the second TB are not necessarily the same, so further judgment needs to be made according to the first information.
  • the terminal device when the first DCI does not include the first NDI information, the terminal device also cannot judge whether the first TB and the second TB are the same according to the NDI information, and can only judge by the first information.
  • the first DCI is a downlink grant DCI (DL grant)
  • the first physical channel includes PDSCH
  • the first DCI schedules the first HARQ process transmission to carry the first transport block
  • the first physical channel of the TB is specifically: the first DCI schedules the first hybrid automatic repeat request HARQ process to transmit the first PDSCH carrying the first transport block TB.
  • the first DCI is an uplink grant DCI (UL grant)
  • the first physical channel includes PUSCH
  • the first DCI schedules the first HARQ process transmission to carry the first transport block
  • the first physical channel of the TB is specifically: the first DCI schedules the first hybrid automatic repeat request HARQ process to transmit the first PUSCH carrying the first transport block TB.
  • the second physical channel is also PDSCH.
  • the second physical channel is also PUSCH.
  • the present application can also be used in other transmission scenarios in which the control channel is used to schedule the data channel.
  • the control channel is used to schedule the data channel.
  • the downlink control information corresponds to the control information in the Physical Sidelink Control Channel (PSCCH)
  • the physical channel corresponds to the Physical Sidelink Shared Channel (Physical Sidelink Shared Channel).
  • PSSCH Physical Sidelink Shared Channel
  • the terminal device can determine that the currently received data packet is a new transmission, that is, the first NDI information is different.
  • a TB is not the same as a second TB.
  • the first HARQ process corresponds to a disabled state; or, the first HARQ process is configured and fed back to be disabled.
  • the first HARQ process is a downlink HARQ process.
  • the first HARQ process is an uplink HARQ process.
  • the first physical channel includes PDSCH (Physical Downlink Shared Channel, physical downlink shared channel), and the first information includes at least one of the following: MCS (Modulation and coding scheme modulation and coding strategy) information, RV (Redundancy Version) information, time domain resource location and frequency domain resource location information, DAI (Downlink Assignment Index, downlink assignment indication) information, PUCCH (Physical Uplink Control Channel, physical uplink control channel) resource information, physical downlink Shared channel PDSCH group identification information, PDSCH-to-HARQ feedback timing information, NFI (New feedback indicator, new feedback indication) information, antenna port information, transmission configuration indication TCI (Transmission configuration indication, transmission configuration indication) information, code block group Transmission information CBGTI (CBG transmission information, CBGTI), CBG flushing out information (CBG flushing out information, CBGFI), demodulation reference signal DMRS (DeModulation Reference Signal, demodulation reference signal) sequence initialization indication information, priority indication information and time window information.
  • MCS Modulation and coding scheme modulation
  • the first physical channel includes a physical uplink shared channel PUSCH
  • the first information includes at least one of the following: modulation and coding strategy MCS (Modulation and Coding Scheme, modulation and coding strategy) information, redundancy version RV information, time domain resource location and frequency domain resource location information, downlink allocation indication DAI information, DFI (downlink feedback indicator, downlink feedback indicator) information, precoding and layer number indication information, antenna port information, code block group transmission information CBGTI, solution Tuning reference signal DMRS sequence initialization indication information, priority indication information and time window.
  • MCS Modulation and Coding Scheme, modulation and coding strategy
  • the determining by the terminal device that the first TB is the same as the second TB includes: the terminal device assuming that the first TB is the same as the second TB.
  • the determining by the terminal device that the first TB is different from the second TB includes: the terminal device assuming that the first TB is different from the second TB.
  • the first information includes RV information and/or DAI information, and the DAI information includes DAI count information; then S220, the terminal device determines the first TB and the second TB according to the first information are the same, including:
  • the terminal device determines that the first TB is the same as the second TB; or, if the first DAI count information and the second DAI count information are different, the terminal device determines that the first TB is the same as the second DAI count information. Two TBs are different; or,
  • the terminal device determines that the first TB and the The second TB is the same; or, if the RV information in the first DCI indicates 0, the terminal device determines that the first TB is different from the second TB.
  • the terminal device does not expect the network device to schedule other HARQ processes for transmission during the process of scheduling blind retransmission of the same HARQ process.
  • the terminal device may also be scheduled to use other HARQ processes for transmission. Therefore, this application also includes other optional implementation manners.
  • the first information includes RV information and/or DAI information, and the DAI information includes DAI count information; then S220, the terminal device determines the first TB and the second TB according to the first information are the same, including:
  • the terminal device determines that the first TB is the same as the third DAI counting information. the second TB is the same; or, if the first DAI count information and the third DAI count information are different, the terminal device determines that the first TB is different from the second TB, wherein the third DCI is the previous DCI used by the terminal device to schedule the second HARQ process to transmit the third physical channel carrying the third TB, which is received by the terminal device before receiving the first DCI, wherein the second HARQ process and the the first HARQ process is the same, or the second HARQ process and the first HARQ process are different; or,
  • the terminal device determines that the first TB and the The second TB is the same; or, if the RV information in the first DCI indicates 0, the terminal device determines that the first TB is different from the second TB.
  • the DAI (Downlink assignment index, downlink assignment indicator) information field includes C-DAI and/or T-DAI: C-DAI (Counter DAI, DAI count) information, used to determine that the current DCI scheduled downlink transmission is within the HARQ feedback window The number of downlink transmissions, in which the sorting method of the C-DAI information is sorted according to the order of the detection opportunities of the PDCCH. T-DAI (Total DAI, total DAI) information is used to determine how many downlink transmissions are included in the HARQ feedback window up to the current DCI scheduling. There may be C-DAI and/or T-DAI in the DCI scheduling PDSCH; T-DAI may be included in the DCI scheduling PUSCH.
  • C-DAI is used to indicate that the downlink transmission scheduled by the current DCI is the number of downlink transmissions in the HARQ feedback window
  • the network device schedules the same TB for multiple downlink transmissions, it can be considered that these multiple downlink transmissions correspond to one downlink transmission , so when scheduling the retransmission of the TB, the C-DAI value may not increase, and accordingly, the terminal device can judge whether the received PDSCH transmission is a retransmission or a new transmission according to this feature.
  • the terminal device determines that the first TB is different from the second TB”, because the terminal device determines that the first TB is different from the second TB
  • the DCI sent by the network device may not be detected, so it may happen that the first TB and the second TB scheduled by the network device are the same, but the terminal device considers that the first TB and the second TB are different. In this case, what is lost is the HARQ combining gain on the terminal device side, which does not bring a big problem to system transmission, so this implementation is also acceptable.
  • the first physical channel includes PDSCH; then in S220, the terminal device determines whether the first TB and the second TB are the same according to the first information, including:
  • the terminal device determines whether the first TB and the second TB are the same according to the RV information and/or the DAI count information in the first DCI, wherein, if the first DCI includes the first DAI count information, the The terminal device determines whether the first TB and the second TB are the same according to the first DAI count information; or, if the first DCI does not include the first DAI count information, the terminal device determines according to the first DAI count information.
  • the RV information in the DCI determines whether the first TB and the second TB are the same; or,
  • the first physical channel includes PUSCH, and the terminal device determines whether the first TB and the second TB are the same according to the first information, including:
  • the terminal device determines whether the first TB and the second TB are the same according to the RV information in the first DCI.
  • the terminal device determines whether the first TB and the second TB are the same according to the first DAI count information, including: if the first DAI count information is the same as the second DAI in the second DCI If the count information is the same, the terminal device determines that the first TB is the same as the second TB; or, if the first DAI count information and the second DAI count information are different, the terminal device determines that the first DAI count information is different from the second DAI count information. A TB is different from the second TB.
  • the terminal device determines whether the first TB and the second TB are the same according to the first DAI count information, including: if the first DAI count information and the third DAI count information in the third DCI is the same, the terminal device determines that the first TB is the same as the second TB, or, if the first DAI count information is different from the third DAI count information in the third DCI, the terminal The device determines that the first TB is different from the second TB.
  • the third DCI is a DCI previously received by the terminal device before receiving the first DCI and used to schedule and transmit a third physical channel carrying a third TB, where the third physical channel It may be transmitted through other HARQ processes other than the first HARQ process, or the third physical channel may also be transmitted through the first HARQ process.
  • the first physical channel is PDSCH
  • the third physical channel is also PDSCH.
  • the terminal device determines whether the first TB and the second TB are the same according to the RV information in the first DCI, including: if the RV information in the first DCI indicates a value other than 0 , the terminal device determines that the first TB is the same as the second TB; or, if the RV information in the first DCI indicates 0, the terminal device determines that the first TB is the same as the second TB different.
  • the first information includes MCS information
  • S220 the terminal device determines whether the first TB and the second TB are the same according to the first information, including:
  • the terminal device determines that the first TB is the same as the second TB; or,
  • the terminal device determines that the first TB is different from the second TB.
  • the first information includes RV information
  • the terminal device determines whether the first TB and the second TB are the same according to the first information, including:
  • the terminal device determines that the first TB is the same as the second TB; or,
  • the terminal device determines that the first TB is different from the second TB.
  • the first information includes time-domain resource location and frequency-domain resource location information
  • the terminal device determines whether the first TB and the second TB are the same according to the first information, including:
  • the terminal device determines that the first TB is the same as the second TB; or,
  • the terminal device If it is determined according to the time-domain resource location and frequency-domain resource location information that the size of the time-frequency resource corresponding to the first physical channel transmission is different from the size of the time-frequency resource corresponding to the second physical channel transmission, the terminal device It is determined that the first TB is different from the second TB.
  • the first information includes DAI information
  • S220 the terminal device determines whether the first TB and the second TB are the same according to the first information, including:
  • the terminal device determines that the first TB is the same as the second TB; or ,
  • the terminal device determines that the first TB is different from the second TB.
  • the first information includes antenna port information, then S220, the terminal device determines whether the first TB and the second TB are the same according to the first information, including:
  • the terminal device determines that the first TB is the same as the second TB; or,
  • the terminal device determines that the first TB is different from the second TB.
  • the first information includes CBGTI, then S220, the terminal device determines whether the first TB and the second TB are the same according to the first information, including:
  • the terminal device determines that the first TB is the same as the second TB; or,
  • the terminal device determines that the first TB is different from the second TB.
  • the first information includes DMRS sequence initialization indication information, then S220, the terminal device determines whether the first TB and the second TB are the same according to the first information, including:
  • the terminal device determines that the first TB is the same as the second TB; or,
  • the terminal device determines that the first TB is different from the second TB.
  • the first information includes priority indication information
  • the terminal device determines whether the first TB and the second TB are the same according to the first information, including:
  • the terminal device determines that the first TB is the same as the second TB; or,
  • the terminal device determines that the first TB is different from the second TB.
  • the first information includes time window information
  • the terminal device determines whether the first TB and the second TB are the same according to the first information, including:
  • the terminal device determines that the first time window corresponding to the first physical channel at least partially overlaps in the time domain.
  • a TB is the same as the second TB; or,
  • the terminal device determines The first TB is different from the second TB.
  • the time window information includes the length of the time window.
  • the length of the time window is preset or configured by a network device.
  • the starting point of the time window is determined according to the time domain position corresponding to the DCI or PDSCH.
  • the starting point of the time window is the ending position of the last symbol of the PDSCH transmission; or, the starting point of the time window is the ending position of the last symbol of the PUSCH transmission.
  • the first information includes CBGFI, then S220, the terminal device determines whether the first TB and the second TB are the same according to the first information, including:
  • the terminal device determines that the first TB is the same as the second TB; or,
  • the terminal device determines that the first TB is different from the second TB;
  • the first preset value and the second preset value are different.
  • the first information includes precoding and layer number indication information
  • the terminal device determines whether the first TB and the second TB are the same according to the first information, including:
  • the terminal device determines that the first TB is the same as the second TB ;or,
  • the terminal device determines that the first TB is different from the second TB .
  • the first information includes antenna port information and CBGTI, then S220, the terminal device determines whether the first TB and the second TB are the same according to the first information, including:
  • the terminal device determines that the first TB is different from the second TB.
  • the first information includes precoding and layer number indication information, antenna port information and CBGTI, then S220, the terminal device determines whether the first TB and the second TB are the same according to the first information, include:
  • the antenna port information corresponding to the first DCI is different from the number of layers corresponding to the second DCI.
  • the corresponding antenna port information is different, or it is determined according to the CBGTI that the number of CBGs included in the first TB is different from the number of CBGs included in the second TB, and the terminal device determines that the first TB is different from the number of CBGs included in the second TB.
  • Two TB is different.
  • the first information includes PUCCH resources; then S220, the terminal device determines whether the first TB and the second TB are the same according to the first information, including:
  • the terminal device determines that the first TB and the second TB are the same according to the first information; or, if The PUCCH resource included in the first information and the PUCCH resource corresponding to the second physical channel indicate different PUCCH resources, and the terminal device determines that the first TB and the second TB are different according to the first information.
  • the first information includes PDSCH-to-HARQ feedback timing; then in S220, the terminal device determines whether the first TB and the second TB are the same according to the first information, including:
  • the terminal device determines the first information according to the first information TB is the same as the second TB; or,
  • the terminal device determines the first information according to the first information TB is not the same as the second TB; or,
  • the terminal device determines the time slot according to the first information
  • the first TB is the same as the second TB; or,
  • the terminal device determines the time slot according to the first information
  • the first TB is not the same as the second TB.
  • the first information includes NFI information; then S220, the terminal device determines whether the first TB and the second TB are the same according to the first information, including:
  • the terminal device determines, according to the first information, that the first TB is the same as the second TB; or,
  • the terminal device determines that the first TB and the second TB are different according to the first information.
  • the first information includes a PDSCH group identifier; then in S220, the terminal device determines whether the first TB and the second TB are the same according to the first information, including:
  • the terminal device determines that the first TB and the second TB are the same according to the first information; or,
  • the terminal device determines that the first TB and the second TB are different according to the first information.
  • the terminal device determines whether the first TB and the second TB are the same according to the first information, including:
  • the terminal device determines that the first TB and the second TB are the same according to the first information; or,
  • the terminal device determines that the first TB is different from the second TB according to the first information.
  • the first information may include two or more kinds of the above information
  • the terminal device jointly determines whether the first TB and the second TB are the same according to the two or more kinds of information, and/or , the terminal device selects one of the two or more kinds of information according to the priority judgment order to judge whether the first TB and the second TB are the same.
  • the first information includes MCS information, DAI information and TCI information
  • the terminal device jointly judges whether the first TB and the second TB are the same according to the MCS information, DAI information and TCI information, wherein, the first TB is the same as the second TB.
  • Any one of the MCS information, DAI information and TCI information included in the information is different from the MCS information, DAI information and TCI information corresponding to the second physical channel, and the terminal device can confirm that the first TB is different from the second TB.
  • the first information is introduced to further judge whether the first TB and the second TB are the same, that is, whether it is a retransmission or a new transmission. Therefore, when the HARQ process is disabled, due to the large RTT, only the NDI information is used to determine whether the retransmission or the new transmission is used, resulting in inconsistent understanding between the network device and the terminal device. For example, as shown in Figure 3 above As shown, the network device is to perform a new transmission, but the terminal device understands that it is indeed a retransmission. Thus, the accuracy of channel transmission is improved.
  • a channel transmission apparatus 300 provided in Embodiment 2 of the present application includes:
  • the receiving unit 310 is configured to receive the first downlink control information DCI, the first DCI schedules the first HARQ process to transmit the first physical channel carrying the first transport block TB, and the first DCI corresponds to the first HARQ process. an information;
  • the confirmation unit 320 is configured to, when the first new data in the first DCI indicates that the NDI information is the same as the second NDI information, or the first DCI does not include the first NDI information, according to the first NDI information information to determine whether the first TB and the second TB are the same; wherein, the second NDI is the NDI in the second DCI, and the second DCI is the first received by the receiving unit for scheduling the first A HARQ process transmits the DCI carrying the second physical channel of the second TB.
  • the first HARQ process corresponds to a disabled state; or, the first HARQ process is configured and fed back to be disabled.
  • the first physical channel includes a physical downlink shared channel PDSCH
  • the first information includes at least one of the following:
  • Modulation and coding strategy MCS information redundancy version RV information, time domain resource location and frequency domain resource location information, downlink allocation indication DAI information, physical uplink control channel PUCCH resource information, physical downlink shared channel PDSCH group identification information, PDSCH-to - HARQ feedback timing information, new feedback indication NFI information, antenna port information, transmission configuration indication TCI information, code block group transmission information CBGTI, CBG clearing buffer information CBGFI, demodulation reference signal DMRS sequence initialization indication information, priority indication information and Time window information.
  • the first physical channel includes a physical uplink shared channel PUSCH
  • the first information includes at least one of the following:
  • Modulation and coding strategy MCS information redundancy version RV information, time domain resource location and frequency domain resource location information, downlink allocation indication DAI information, downlink feedback indication DFI information, precoding and layer number indication information, antenna port information, code block Group transmission information CBGTI, demodulation reference signal DMRS sequence initialization indication information, priority indication information and time window.
  • the first information includes RV information and/or DAI information, and the DAI information includes DAI count information; then the confirmation unit 320 is specifically configured to indicate when the first new data in the first DCI indicates The NDI information is the same as the second NDI information, or when the first DCI does not include the first NDI information, and the first DCI includes the first DAI count information, if the first DAI counts If the information is the same as the second DAI count information, it is determined that the first TB is the same as the second TB; or, if the first DAI count information is different from the second DAI count information, it is determined that the first TB is the same as the second TB. TB is different from the second TB; or,
  • the RV information in the first DCI indicates a value other than 0, determining that the first TB is the same as the second TB; Alternatively, if the RV information in the first DCI indicates 0, it is determined that the first TB is different from the second TB.
  • the first information includes RV information and/or DAI information, and the DAI information includes DAI count information; then the confirmation unit 320 is specifically configured to indicate when the first new data in the first DCI indicates The NDI information is the same as the second NDI information, or when the first DCI does not include the first NDI information, and the first DCI includes the first DAI count information, if the first DAI counts The information is the same as the third DAI count information in the third DCI, and it is determined that the first TB is the same as the second TB; or, if the first DAI count information and the third DAI count information are different, it is determined that the The first TB is different from the second TB, and the third DCI is the first data received by the receiving unit before receiving the first DCI and used to schedule the second HARQ process transmission to carry the third TB. DCI of three physical channels, wherein the second HARQ process and the first HARQ process are different or the same; or,
  • the RV information in the first DCI indicates a value other than 0, determining that the first TB is the same as the second TB; Alternatively, if the RV information in the first DCI indicates 0, it is determined that the first TB is different from the second TB.
  • the first physical channel includes PDSCH; then the confirmation unit is specifically used when the first new data in the first DCI indicates that the NDI information is the same as the second NDI information, or the first DCI
  • whether the first TB and the second TB are the same is determined according to the RV information and/or DAI count information in the first DCI, wherein if the first DCI includes the first DAI counting information, according to the first DAI counting information to determine whether the first TB and the second TB are the same; or, if the first DCI does not include the first DAI counting information, according to the first DCI
  • the RV information in determines whether the first TB and the second TB are the same; or,
  • the first physical channel includes PUSCH; then the confirmation unit is specifically used when the first new data in the first DCI indicates that the NDI information is the same as the second NDI information, or the first DCI does not include the When the first NDI information is used, it is determined whether the first TB and the second TB are the same according to the RV information in the first DCI.
  • the first information includes MCS information
  • the confirmation unit 320 is specifically configured to, when the first new data in the first DCI indicates that the NDI information is the same as the second NDI information, or the first DCI does not include the first NDI information, if It is determined according to the MCS information that the transport block size TBS of the first TB is the same as the TBS of the second TB, then it is determined that the first TB is the same as the second TB; or, if it is determined according to the MCS information If the TBS of the first TB is different from the TBS of the second TB, it is determined that the first TB is different from the second TB.
  • the first information includes RV information
  • the confirmation unit 320 is specifically configured to, when the first new data in the first DCI indicates that the NDI information is the same as the second NDI information, or the first DCI does not include the first NDI information, if If the RV information indicates a value other than 0, it is determined that the first TB is the same as the second TB; or, if the RV information indicates 0, it is determined that the first TB and the second TB are the same different.
  • the first information includes time-domain resource location and frequency-domain resource location information
  • the confirmation unit 320 is specifically configured to, when the first new data in the first DCI indicates that the NDI information is the same as the second NDI information, or the first DCI does not include the first NDI information, if It is determined according to the time-domain resource location and frequency-domain resource location information that the size of the time-frequency resource corresponding to the first physical channel transmission is the same as the size of the time-frequency resource corresponding to the second physical channel transmission; One TB is the same as the second TB; or, if the size of the time-frequency resource corresponding to the first physical channel transmission is determined according to the time-domain resource location and frequency-domain resource location information, the size of the time-frequency resource corresponding to the second physical channel transmission corresponds to If the size of the time-frequency resources is different, it is determined that the first TB is different from the second TB.
  • the first information includes DAI information
  • the confirmation unit 320 is specifically configured to, when the first new data in the first DCI indicates that the NDI information is the same as the second NDI information, or the first DCI does not include the first NDI information, if The DAI information corresponding to the first DCI is the same as the DAI information corresponding to the second DCI, then it is determined that the first TB is the same as the second TB; or, if the DAI information corresponding to the first DCI is the same as the DAI information corresponding to the second DCI If the DAI information corresponding to the second DCI is different, it is determined that the first TB is different from the second TB.
  • the first information includes antenna port information
  • the confirmation unit 320 is specifically configured to, when the first new data in the first DCI indicates that the NDI information is the same as the second NDI information, or the first DCI does not include the first NDI information, if If the antenna port information corresponding to the first DCI is the same as the antenna port information corresponding to the second DCI, it is determined that the first TB is the same as the second TB; or, if the antenna port corresponding to the first DCI is the same If the information is different from the antenna port information corresponding to the second DCI, it is determined that the first TB is different from the second TB.
  • the first information includes CBGTI
  • the confirmation unit 320 is specifically configured to, when the first new data in the first DCI indicates that the NDI information is the same as the second NDI information, or the first DCI does not include the first NDI information, if It is determined according to the CBGTI that the number of CBGs included in the first TB is the same as the number of CBGs included in the second TB, then it is determined that the first TB is the same as the second TB; or, if according to the CBGTI If it is determined that the number of CBGs included in the first TB is different from the number of CBGs included in the second TB, it is determined that the first TB is different from the second TB.
  • the first information includes DMRS sequence initialization indication information
  • the confirmation unit 320 is specifically configured to, when the first new data in the first DCI indicates that the NDI information is the same as the second NDI information, or the first DCI does not include the first NDI information, if If the DMRS sequence initialization indication information corresponding to the first DCI is the same as the DMRS sequence initialization indication information corresponding to the second DCI, it is determined that the first TB is the same as the second TB; or, if the first DCI If the corresponding DMRS sequence initialization indication information is different from the DMRS sequence initialization indication information corresponding to the second DCI, it is determined that the first TB is different from the second TB.
  • the first information includes priority indication information
  • the confirmation unit 320 is collectively configured to, when the first new data in the first DCI indicates that the NDI information is the same as the second NDI information, or the first DCI does not include the first NDI information, if If the priority indication information corresponding to the first DCI is the same as the priority indication information corresponding to the second DCI, it is determined that the first TB is the same as the second TB; If the priority indication information is different from the priority indication information corresponding to the second DCI, it is determined that the first TB is different from the second TB.
  • the first information includes time window information
  • the confirmation unit 320 is specifically configured to, when the first new data in the first DCI indicates that the NDI information is the same as the second NDI information, or the first DCI does not include the first NDI information, if The first time window corresponding to the first physical channel determined according to the time window information and the second time window corresponding to the second physical channel at least partially overlap in the time domain, then it is determined that the first TB and the The second TB is the same; or, if the first time window corresponding to the first physical channel determined according to the time window information and the second time window corresponding to the second physical channel are in the time domain If not overlapping, it is determined that the first TB is different from the second TB.
  • the time window information includes the length of the time window, and the length of the time window is preset or configured by a network device.
  • the first information includes CBGFI;
  • the confirmation unit 320 is specifically configured to, when the first new data in the first DCI indicates that the NDI information is the same as the second NDI information, or the first DCI does not include the first NDI information, if If the CBGFI indicates a first preset value, it is determined that the first TB is the same as the second TB; or, if the CBGFI indicates a second preset value, it is determined that the first TB is the same as the second TB TBs are different; wherein, the first preset value and the second preset value are different.
  • the first information includes precoding and layer number indication information
  • the confirmation unit 320 is specifically configured to, when the first new data in the first DCI indicates that the NDI information is the same as the second NDI information, or the first DCI does not include the first NDI information, if According to the precoding and layer number indication information, it is determined that the number of layers corresponding to the first TB is the same as the number of layers corresponding to the second TB, then it is determined that the first TB is the same as the second TB; or, if It is determined according to the precoding and layer number indication information that the number of layers corresponding to the first TB is different from the number of layers corresponding to the second TB, and then it is determined that the first TB is different from the second TB.
  • the first information includes antenna port information and CBGTI;
  • the confirmation unit 320 is specifically configured to, when the first new data in the first DCI indicates that the NDI information is the same as the second NDI information, or the first DCI does not include the first NDI information, if The antenna port information corresponding to the first DCI is different from the antenna port information corresponding to the second DCI, or the number of CBGs included in the first TB and the number of CBGs included in the second TB are determined according to the CBGTI If the numbers are different, it is determined that the first TB is different from the second TB.
  • the first information includes precoding and layer number indication information, antenna port information and CBGTI;
  • the confirmation unit 320 is specifically configured to, when the first new data in the first DCI indicates that the NDI information is the same as the second NDI information, or the first DCI does not include the first NDI information, if It is determined according to the precoding and layer number indication information that the number of layers corresponding to the first TB is different from the number of layers corresponding to the second TB; or, the antenna port information corresponding to the first DCI is different from the second DCI The corresponding antenna port information is different; or, it is determined according to the CBGTI that the number of CBGs included in the first TB is different from the number of CBGs included in the second TB, then it is determined that the first TB and the second TB are different different.
  • the first information includes PUCCH resources; then the confirmation unit 320 is specifically configured to be used when the first new data in the first DCI indicates that the NDI information is the same as the second NDI information, or the first When the first NDI information is not included in the DCI, if the PUCCH resource included in the first information and the PUCCH resource corresponding to the second physical channel indicate the same PUCCH resource, determine the first TB and the PUCCH resource according to the first information The second TB is the same; or, if the PUCCH resource included in the first information and the PUCCH resource corresponding to the second physical channel indicate different PUCCH resources, determine the first TB and the second TB according to the first information different.
  • the first information includes PDSCH-to-HARQ feedback timing; then the confirmation unit 320 is specifically configured to, when the first new data in the first DCI indicates that the NDI information is the same as the second NDI information, Or when the first DCI does not include the first NDI information, if the PDSCH-to-HARQ feedback timing included in the first information is the same as the PDSCH-to-HARQ feedback timing indication corresponding to the second physical channel value, it is determined according to the first information that the first TB is the same as the second TB; or, if the PDSCH-to-HARQ feedback timing included in the first information and the PDSCH-to-HARQ corresponding to the second physical channel
  • the HARQ feedback timing indicates different values, and it is determined according to the first information that the first TB is different from the second TB; or, if the PDSCH-to-HARQ feedback timing included in the first information corresponds to the second physical channel
  • the PDSCH-to-HARQ feedback timing indicates the same time slot, and it
  • the first information includes NFI information; then the confirmation unit 320 is specifically configured to be used when the first new data in the first DCI indicates that the NDI information is the same as the second NDI information, or the first
  • the confirmation unit 320 is specifically configured to be used when the first new data in the first DCI indicates that the NDI information is the same as the second NDI information, or the first
  • the NFI information included in the first information and the NFI information corresponding to the second physical channel indicate the same value, determine the first TB and the NFI according to the first information.
  • the second TB is the same; or, if the NFI information included in the first information and the NFI information corresponding to the second physical channel indicate different values, it is determined according to the first information that the first TB is different from the second TB.
  • the first information includes a PDSCH group identifier; then the confirming unit 320 is specifically used for when the first new data in the first DCI indicates that the NDI information is the same as the second NDI information, or the first new data indicates that the NDI information is the same as the second NDI information, or the first
  • a DCI does not include the first NDI information
  • the first TB is determined according to the first information is the same as the second TB; or, if the PDSCH group identifier included in the first information and the PDSCH group identifier corresponding to the second physical channel indicate different values, it is determined according to the first information that the first TB is different from the second TB .
  • the first information TCI; then the confirmation unit 320 is specifically used for when the first new data in the first DCI indicates that the NDI information is the same as the second NDI information, or the first DCI
  • the first NDI information is not included, if the TCI included in the first information and the TCI corresponding to the second physical channel indicate the same value, it is determined according to the first information that the first TB is the same as the second TB; or , if the TCI included in the first information and the TCI corresponding to the second physical channel indicate different values, it is determined according to the first information that the first TB is different from the second TB.
  • the first information may include two or more types of the above information
  • the terminal device jointly determines whether the first TB and the second TB are the same according to the two or more types of information.
  • the first information includes MCS information, DAI information and TCI information
  • the terminal device jointly judges whether the first TB and the second TB are the same according to the MCS information, DAI information and TCI information. Any one of the MCS information, DAI information and TCI information included in the information is different from the MCS information, DAI information and TCI information corresponding to the second physical channel, and the terminal device can confirm that the first TB is different from the second TB.
  • FIG. 6 is a schematic structural diagram of a channel transmission apparatus 400 according to Embodiment 3 of the present invention.
  • the compression apparatus 400 includes: a processor 410 and a memory 420 .
  • the processor 410 and the memory 420 communicate with each other through a bus system.
  • the memory 420 is a computer-readable storage medium on which programs executable on the processor 410 are stored.
  • the processor 410 invokes the program in the memory 420 to execute the corresponding process implemented by the network device in the method for uplink transmission provided in the first embodiment above, or executes the method for uplink transmission provided in the first embodiment above by the terminal.
  • the corresponding process implemented by the device is a computer-readable storage medium on which programs executable on the processor 410 are stored.
  • the processor 410 invokes the program in the memory 420 to execute the corresponding process implemented by the network device in the method for uplink transmission provided in the first embodiment above, or executes the method for uplink transmission provided in the first embodiment above by the terminal.
  • the corresponding process implemented by the device is a computer-readable storage medium on which programs executable on the processor 410 are stored.
  • the processor 410 may be an independent component, or may be a collective term for multiple processing components. For example, it may be a CPU, an ASIC, or one or more integrated circuits configured to implement the above method, such as at least one microprocessor DSP, or at least one programmable gate FPGA, etc.
  • the functions described in the specific embodiments of the present application may be implemented in whole or in part by software, hardware, firmware or any combination thereof.
  • software When implemented in software, it may be implemented by a processor executing software instructions.
  • the software instructions may consist of corresponding software modules.
  • the software modules may be stored in a computer-readable storage medium, which may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that includes one or more available mediums integrated.
  • the available media may be magnetic media (eg, floppy disks, hard disks, magnetic tapes), optical media (eg, Digital Video Disc (DVD)), or semiconductor media (eg, Solid State Disk (SSD)) )Wait.
  • the computer-readable storage medium includes but is not limited to random access memory (Random Access Memory, RAM), flash memory, read only memory (Read Only Memory, ROM), Erasable Programmable Read Only Memory (Erasable Programmable ROM, EPROM) ), Electrically Erasable Programmable Read-Only Memory (Electrically EPROM, EEPROM), registers, hard disks, removable hard disks, compact disks (CD-ROMs), or any other form of storage medium known in the art.
  • An exemplary computer-readable storage medium is coupled to the processor such that the processor can read information from, and write information to, the computer-readable storage medium.
  • the computer-readable storage medium can also be an integral part of the processor.
  • the processor and computer-readable storage medium may reside in an ASIC. Additionally, the ASIC may reside in access network equipment, target network equipment or core network equipment.
  • the processor and the computer-readable storage medium may also exist as discrete components in the access network device, the target network device or the core network device. When implemented in software, it can also be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer instructions.
  • the computer may be a general purpose computer, special purpose computer, computer network, or other programmable device.
  • the computer program instructions may be stored on or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, from a website site, computer, server, or computer-readable storage medium.
  • the data center transmits to another website site, computer, server or data center through wired (such as coaxial cable, optical fiber, Digital Subscriber Line, DSL) or wireless (such as infrared, wireless, microwave, etc.).

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  • Mobile Radio Communication Systems (AREA)

Abstract

Procédé et appareil de transmission de canal. Le procédé consiste : à recevoir, par un dispositif terminal, des premières informations de commande de liaison descendante (DCI), les premières DCI programmant un premier processus de demande de répétition automatique hybride (HARQ) afin de transmettre un premier canal physique portant un premier bloc de transmission (TB), et les premières DCI correspondant à des premières informations ; et lorsque des premières informations d'indication de nouvelles données (NDI) dans les premières DCI sont identiques à des secondes informations NDI, à déterminer, par le dispositif terminal, en fonction des premières informations, si le premier TB est identique à un second TB, une seconde NDI étant une NDI dans des secondes DCI, et les secondes DCI étant des DCI précédentes reçues par le dispositif terminal et utilisées pour programmer le premier processus HARQ afin de transmettre un second canal physique portant le second TB. Le procédé permet de rendre cohérente la compréhension d'un dispositif de réseau et du dispositif terminal, ce qui permet d'améliorer la précision de transmission de canal.
PCT/CN2020/121636 2020-10-16 2020-10-16 Procédé et appareil de transmission de canal WO2022077481A1 (fr)

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CN202080105031.7A CN116114299A (zh) 2020-10-16 2020-10-16 一种信道传输方法及其装置

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