WO2022056725A1 - Procédé de rétroaction de canal, dispositif terminal et dispositif de réseau - Google Patents

Procédé de rétroaction de canal, dispositif terminal et dispositif de réseau Download PDF

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Publication number
WO2022056725A1
WO2022056725A1 PCT/CN2020/115584 CN2020115584W WO2022056725A1 WO 2022056725 A1 WO2022056725 A1 WO 2022056725A1 CN 2020115584 W CN2020115584 W CN 2020115584W WO 2022056725 A1 WO2022056725 A1 WO 2022056725A1
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WIPO (PCT)
Prior art keywords
channel
downlink
downlink channel
terminal device
uplink channel
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PCT/CN2020/115584
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English (en)
Chinese (zh)
Inventor
林亚男
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/CN2020/115584 priority Critical patent/WO2022056725A1/fr
Priority to CN202080102467.0A priority patent/CN116438760A/zh
Publication of WO2022056725A1 publication Critical patent/WO2022056725A1/fr

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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
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems

Definitions

  • the embodiments of the present application relate to the field of communications, and more particularly, to a channel feedback method, a terminal device, and a network device.
  • HARQ order Hybrid Automatic Repeat Request (HARQ order) is defined for data processing within a carrier.
  • DCI Downlink Control Information
  • HARQ timing a special value of HARQ timing (HARQ timing) is introduced in the Downlink Control Information (DCI) , that is, an invalid value (inapplicable value), which indicates the transmission of feedback information corresponding to the physical downlink shared channel (Physical Downlink Shared Channel, PDSCH) scheduled by the DCI (Acknowledgement, ACK)/negative acknowledgement (Negative Acknowledgement, NACK) Time and resources cannot be determined for the time being.
  • DCI Downlink Control Information
  • ACK Physical Downlink Shared Channel
  • NACK Negative Acknowledgement
  • the embodiments of the present application provide a channel feedback method, terminal equipment, and network equipment.
  • the value of the feedback timing corresponding to the downlink channel is an invalid value, the problem of out-of-order when the terminal receives downlink data can be avoided.
  • a channel feedback method comprising:
  • the terminal device receives configuration information, where the configuration information is used to configure the terminal device to receive a second downlink channel after the first downlink channel, the value of the feedback timing corresponding to the first downlink channel is an invalid value, and the second downlink channel is an invalid value.
  • the feedback information corresponding to the downlink channel is transmitted through the first uplink channel, and the resources of the first uplink channel are configured by high-level signaling;
  • the terminal device clears the feedback information corresponding to the first downlink channel, or the terminal device does not demodulate the second downlink channel;
  • the target downlink control information is used to instruct the terminal device to send feedback information corresponding to the first downlink channel before the time unit where the first uplink channel is located, or the target downlink control information is used to instruct the terminal device to send feedback information corresponding to the first downlink channel before the time unit where the first uplink channel is located.
  • the feedback information corresponding to the first downlink channel is sent in the time unit where the first uplink channel is located.
  • a channel feedback method comprising:
  • the terminal device receives the first downlink channel, wherein the value of the feedback sequence corresponding to the first downlink channel is an invalid value
  • the terminal device receives a target downlink control channel after the first downlink channel, where the target downlink control channel is used to indicate a first uplink channel, wherein the feedback information corresponding to the first downlink channel is transmitted through the first uplink channel;
  • the terminal device does not expect to receive the second downlink channel after the first downlink channel and before the first uplink channel, wherein the feedback information corresponding to the second downlink channel is transmitted through the second uplink channel configured by higher layer signaling, And the second uplink channel is before the time unit where the first uplink channel is located, or the second uplink channel is in the time unit where the first uplink channel is located.
  • a channel feedback method comprising:
  • the network device sends the first downlink channel, wherein the value of the feedback sequence corresponding to the first downlink channel is an invalid value
  • the network device sends a target downlink control channel after the first downlink channel, where the target downlink control channel is used to indicate a first uplink channel, wherein the feedback information corresponding to the first downlink channel is transmitted through the first uplink channel;
  • the network device does not send a second downlink channel after the first downlink channel and before the first uplink channel, wherein the feedback information corresponding to the second downlink channel is transmitted through the second uplink channel configured by higher layer signaling, and
  • the second uplink channel is before the time unit where the first uplink channel is located, or the second uplink channel is in the time unit where the first uplink channel is located.
  • a terminal device for executing the method in the first aspect.
  • the terminal device includes functional modules for executing the method in the first aspect.
  • a terminal device for executing the method in the second aspect.
  • the terminal device includes a functional module for executing the method in the second aspect above.
  • a network device for executing the method in the third aspect.
  • the network device includes functional modules for executing the method in the third aspect.
  • 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 first aspect.
  • 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 second aspect.
  • 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 third aspect.
  • an apparatus for implementing the method in any one of the above-mentioned first to third aspects.
  • the apparatus includes: a processor for invoking and running a computer program from a memory, so that a device on which the apparatus is installed executes the method in any one of the above-mentioned first to third aspects.
  • a computer-readable storage medium for storing a computer program, the computer program causing a computer to perform the method in any one of the above-mentioned first to third aspects.
  • a twelfth aspect provides a computer program product comprising computer program instructions, the computer program instructions causing a computer to perform the method in any one of the above-mentioned first to third aspects.
  • a thirteenth aspect provides a computer program which, when run on a computer, causes the computer to perform the method of any one of the above-mentioned first to third aspects.
  • the terminal device can clear the feedback information corresponding to the first downlink channel, or the terminal device does not demodulate the second downlink channel , which can avoid out-of-order problems when the terminal equipment receives downlink data.
  • the lower time limit for clearing the feedback information corresponding to the first downlink channel can be determined more accurately, and the feedback information corresponding to the first downlink channel can be guaranteed by the terminal device and the network device. The understanding of the validity of the information is consistent, or the lower time limit for not demodulating the second downlink channel can be determined more accurately.
  • the terminal device does not expect to receive the second downlink channel after the first downlink channel and before the first uplink channel. From the perspective of network device scheduling, the problem of out-of-order when the terminal device receives downlink data is avoided. .
  • the network device does not send the second downlink channel after the first downlink channel and before the first uplink channel, and from the perspective of network device scheduling, out-of-order problems when terminal devices receive downlink data are avoided.
  • 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 reflecting the feedback sequence provided by the present application.
  • FIG. 3 is a schematic diagram reflecting disorder provided by the present application.
  • FIG. 4 is a schematic flowchart of a channel feedback method provided according to an embodiment of the present application.
  • FIG. 5 is a schematic diagram of a channel feedback provided according to an embodiment of the present application.
  • FIG. 6 is a schematic diagram of another channel feedback provided according to an embodiment of the present application.
  • FIG. 7 is a schematic diagram of still another channel feedback provided according to an embodiment of the present application.
  • FIG. 8 is a schematic flowchart of another channel feedback method provided according to an embodiment of the present application.
  • FIG. 9 is a schematic diagram of still another channel feedback provided according to an embodiment of the present application.
  • FIG. 10 is a schematic block diagram of a terminal device provided according to an embodiment of the present application.
  • FIG. 11 is a schematic block diagram of another terminal device provided according to an embodiment of the present application.
  • FIG. 12 is a schematic block diagram of a network device provided according to an embodiment of the present application.
  • FIG. 13 is a schematic block diagram of a communication device provided according to an embodiment of the present application.
  • Fig. 14 is a schematic block diagram of an apparatus provided according to an embodiment of the present application.
  • FIG. 15 is a schematic block diagram of a communication system provided according to an embodiment 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 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 can be a station (STATION, ST) in the WLAN, can be a cellular phone, a cordless phone, a Session Initiation Protocol (Session Initiation Protocol, SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, personal digital processing (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 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.
  • 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. 1 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. 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 are not limited in this embodiment of the present application.
  • network entities such as a network controller and a mobility management entity, which are not limited in this embodiment of the present application.
  • 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.
  • the "instruction" mentioned in the embodiments of the present application may be a direct instruction, an indirect instruction, or an associated relationship.
  • a indicates B it can indicate that A directly indicates B, for example, B can be obtained through A; it can also indicate that A indicates B indirectly, such as A indicates C, and B can be obtained through C; it can also indicate that there is an association between A and B relation.
  • 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.
  • Unlicensed spectrum is the spectrum allocated by countries and regions that can be used for radio equipment communication. This spectrum is generally considered to be shared spectrum, that is, communication equipment in different communication systems can meet the regulatory requirements set by the country or region on the spectrum. To use this spectrum, there is no need to apply for an exclusive spectrum license from the government. In order to enable various communication systems that use unlicensed spectrum for wireless communication to coexist amicably on this spectrum, some countries or regions stipulate the regulatory requirements that must be met when using unlicensed spectrum.
  • communication equipment follows the principle of "listen first and then talk", that is, before the communication equipment transmits signals on the unlicensed spectrum channel, it needs to perform channel detection first, and only when the channel detection result is that the channel is idle, Only the communication device can perform signal transmission; if the channel detection result of the communication device on the channel of the unlicensed spectrum is that the channel is busy, the communication device cannot perform signal transmission.
  • the duration of signal transmission by a communication device using a channel of unlicensed spectrum cannot exceed the Maximum Channel Occupation Time (MCOT).
  • MCOT Maximum Channel Occupation Time
  • codebook for Hybrid Automatic Repeat request Acknowledgement
  • NR-U can support a variety of HARQ-ACK codebook (codebook) generation methods, including: Type 1 (Type-1) HARQ-ACK codebook, Type 2 (Type-2) HARQ-ACK codebook, Enhanced Type 2 (Enhanced Type-2) HARQ-ACK codebook, Type-3 (Type-3) HARQ-ACK codebook, where Type-1 and Type-2 codebooks are the two feedback information codebooks supported by NR version 15 (release15, Rel-15). , while the Enhanced Type-2 and Type-3 codebooks are the two new feedback information codebooks introduced by NR-U in Release 16 (release16, Rel-16). The codebook that the terminal uses based on the high-level signaling sent by the base station. Among them, the Type-1, Type-2, and Enhanced Type-2 codebooks will not be configured at the same time, and the Type 3 codebook can be independent of Type-1 and Type-2. , Enhanced Type-2 configuration (can be superimposed configuration).
  • the Enhanced Type-2HARQ-ACK codebook is an ACK/NACK feedback method based on downlink channel groups, and currently indicates a maximum of two downlink channel groups.
  • the base station indicates through the DCI the group information to which the PDSCH scheduled by the DCI or the Physical Downlink Control Channel (PDCCH) carrying the DCI belongs.
  • the base station sends trigger signaling to instruct the terminal equipment to feed back ACK/NACK information corresponding to a certain group
  • the terminal equipment feeds back the feedback information corresponding to all PDSCHs or PDCCHs belonging to the group to the base station together.
  • the base station can trigger the terminal device to send the ACK/NACK information of a certain group multiple times, that is, to realize ACK/NACK retransmission.
  • the Type-3 HARQ-ACK codebook includes ACK/NACK feedback methods corresponding to all HARQ processes.
  • the terminal device supports a maximum of N HARQ processes.
  • the ACK/NACK information is mapped into the feedback information codebook (codebook) according to the HARQ process number sequence.
  • the ACK/NACK information corresponding to the unreceived HARQ process is set as occupancy information (such as NACK).
  • HARQ feedback timing (HARQ-timing) is introduced below.
  • HARQ-timing dynamic determination of HARQ feedback timing
  • the terminal first determines the pre-configured HARQ timing set, and the base station indicates a value in the set as k through DCI.
  • the PDSCH scheduled by the DCI is transmitted in time slot (slot) n, and the corresponding ACK/NACK information is transmitted in slot n+k.
  • the pre-configured HARQ timing set includes at most 8 timing (timing) values, for DCI format (format) 1_0, the set is agreed by the protocol, and for DCI format 1_1, the set is configured by the base station.
  • HARQ timing value indicates the transmission time and resources of the ACK/NACK feedback information corresponding to the PDSCH scheduled by the DCI Not sure yet.
  • the subsequent base station sends DCI, which is used to trigger the terminal to feed back the ACK/NACK corresponding to the PDSCH whose HARQ timing was invalid before.
  • Type-1 HARQ-ACK codebook does not support HARQ timing invalid value, other HARQ-ACK codebook can support HARQ timing invalid value.
  • HARQ order HARQ feedback order
  • NR Rel-15 defines a relatively strict timing relationship for data processing within a carrier, including: the terminal receives the first PDSCH at the first time, and its corresponding ACK/NACK information passes through Transmission in the first time slot; the terminal does not expect to receive the second PDSCH, whose start symbol is after the start symbol of the first PDSCH, but the corresponding ACK/NACK information is transmitted through the time slot before the first time slot.
  • the terminal device receives PDSCH 1, and its corresponding ACK/NACK information is transmitted through time slot j; the terminal device does not expect to receive PDSCH 2, and its corresponding ACK/NACK information is transmitted in time slot j-1 .
  • the HARQ order may be out-of-order, which affects the normal feedback of the channel.
  • the terminal receives DCI 1 scheduling PDSCH 1 transmission, and the HARQ timing information field in it indicates an invalid value. Then, the terminal receives the semi-persistent scheduling (Semi-Persistent Scheduling, SPS) PDSCH, the ACK/NACK information corresponding to the SPS PDSCH is transmitted on PUCCH 1, and the resources of PUCCH 1 are preconfigured through high-level signaling. As mentioned above, for the PDSCH corresponding to invalid HARQ timing, the feedback information can only be triggered and transmitted through subsequent DCI, so the PUCCH 1 corresponding to the SPS PDSCH cannot carry the feedback information of PDSCH 1.
  • SPS semi-persistent Scheduling
  • the terminal receives DCI 2 scheduling PDSCH 2 transmission, the HARQ timing indication in DCI 2 is a valid value, and DCI 2 triggers the PDSCH corresponding to the invalid HARQ timing, and its feedback information is transmitted on PUCCH 2. Then the ACK/NACK information corresponding to PDSCH 1 will be transmitted through PUCCH 2 indicated by DCI 2, and at the same time, the ACK/NACK information corresponding to PDSCH 2 will be transmitted through PUCCH 2 indicated by DCI 2.
  • the feedback order (HARQ order) relationship between PDSCH 1 and SPS PDSCH breaks the NR Rel-15 regulation on HARQ order, and is out-of-order. This will affect the complexity and cost of terminal implementation.
  • the present application proposes a channel feedback scheme, which can avoid the problem of out-of-order when the terminal receives downlink data when the value of the feedback timing corresponding to the downlink channel is invalid.
  • FIG. 4 is a schematic flowchart of a channel feedback method 200 according to an embodiment of the present application. As shown in FIG. 4 , the method 200 may include at least part of the following contents:
  • the terminal device receives configuration information, where the configuration information is used to configure the terminal device to receive a second downlink channel after the first downlink channel, the value of the feedback timing corresponding to the first downlink channel is an invalid value, and the The feedback information corresponding to the second downlink channel is transmitted through the first uplink channel, and the resources of the first uplink channel are configured by high-layer signaling;
  • the terminal device clears the feedback information corresponding to the first downlink channel, or the terminal device does not demodulate the second downlink channel; wherein, the The target downlink control information is used to instruct the terminal device to send feedback information corresponding to the first downlink channel before the time unit where the first uplink channel is located, or the target downlink control information is used to instruct the terminal device to send the feedback information corresponding to the first downlink channel before the time unit where the first uplink channel is located.
  • the feedback information corresponding to the first downlink channel is sent in the time unit where the uplink channel is located.
  • the feedback timing may be HARQ feedback timing (HARQ-timing).
  • the value of the feedback timing corresponding to the first downlink channel is an inapplicable value, which indicates that the transmission time and resources of the feedback information corresponding to the first downlink channel cannot be determined temporarily.
  • the subsequently received downlink control information is required to trigger the determination of the transmission time and resources of the feedback information corresponding to the first downlink channel, that is, the triggering of the target downlink control information is required to determine the transmission time and resources of the feedback information corresponding to the first downlink channel.
  • the feedback codebook may be at least one of a Type-2 HARQ-ACK codebook, an Enhanced Type-2 HARQ-ACK codebook, and a Type-3 HARQ-ACK codebook.
  • the physical meaning of the first time is that, considering the necessary processing delay, the PUCCH indicated by the target downlink control information received after the first time must be after the first uplink channel.
  • the feedback information corresponding to the first downlink channel may be ACK; if the terminal device fails to receive the first downlink channel, the feedback information corresponding to the first downlink channel The information can be NACK.
  • the feedback information corresponding to the second downlink channel may be ACK; if the terminal device fails to receive the second downlink channel, the feedback information corresponding to the second downlink channel may be NACK.
  • the terminal device clears the feedback information corresponding to the first downlink channel, which can also be expressed as at least one of the following:
  • the terminal device discards (skip) the feedback information corresponding to the first downlink channel
  • the terminal device cancels (drops) the feedback information corresponding to the first downlink channel
  • the terminal device cancels the feedback information corresponding to the first downlink channel
  • the terminal device does not store (do not buffer) feedback information corresponding to the first downlink channel.
  • the terminal device may determine whether to receive the target downlink control information before the first time according to the end position of the PDCCH carrying the target downlink control information.
  • the time unit includes one of the following:
  • a slot, a subslot, at least one time domain symbol is provided.
  • the first downlink channel includes one of the following:
  • the first downlink channel when the first downlink channel is a PDCCH, the first downlink channel carries first downlink control information, where the first downlink control information is used to indicate the release of SPS resources, or the first downlink control information
  • the downlink control information is used to indicate Scell dormancy.
  • the second downlink channel is SPS PDSCH.
  • the terminal device does not demodulate the second downlink channel, including at least one of the following:
  • the terminal device does not receive the second downlink channel
  • the terminal equipment does not decode the second downlink channel.
  • the terminal device can avoid the disorder problem when receiving downlink data by not demodulating the second downlink channel.
  • the terminal device may not send the first uplink channel.
  • the terminal device may not send the first uplink channel.
  • the terminal device sends a first feedback codebook after the first uplink channel, the first feedback codebook includes feedback information bits corresponding to the first downlink channel, and the first feedback codebook includes bits of feedback information corresponding to the first downlink channel.
  • the feedback information bit corresponding to the downlink channel is set to NACK.
  • the terminal device sends a second feedback codebook after the first uplink channel, the second feedback codebook includes feedback information bits corresponding to the second downlink channel, and the second feedback codebook includes bits of feedback information corresponding to the second downlink channel.
  • the feedback information bit corresponding to the downlink channel is set to NACK.
  • first feedback codebook and second feedback codebook may be the same codebook or not, which is not limited in this embodiment of the present application.
  • the first time is the start time of the first uplink channel
  • the first time is determined according to the start time of the first uplink channel and the first time interval.
  • the first time - the first time interval the start time of the first uplink channel.
  • the first time interval is determined according to at least one of the following:
  • Downlink shared channel processing time threshold Downlink control channel processing time threshold, uplink channel preparation time threshold, uplink channel multiplexing transmission preparation time threshold, uplink channel cancellation processing time threshold.
  • the downlink shared channel processing time threshold value can be obtained by the following formula 1, wherein, the specific parameters in formula 1 can refer to the definition in section 5.3 of the communication standard TS38.214, for brevity, it is not discussed here. .
  • T proc,1 (N 1 +d 1,1 +d 2 )(2048+144) ⁇ ⁇ 2 ⁇ ⁇ T C +Text Equation 1
  • the downlink control channel processing time threshold value for the downlink control channel processing time threshold value, reference may be made to Section 10.2 or Section 10.3 in the communication standard TS38.213.
  • the uplink channel preparation time threshold value can be obtained by the following formula 2, wherein the specific parameters in formula 2 can refer to the definition in section 6.4 of the communication standard TS38.214, which is not discussed here for brevity.
  • T proc,2 max((N 2 +d 2,1 +d 2 )(2048+144) ⁇ 2 ⁇ ⁇ T C +T ext +T switch ,d 2,2 ) Equation 2
  • the uplink channel multiplexing transmission preparation time threshold can be obtained by one of the following formula 3-formula 6, wherein the specific parameters in formula 3-formula 6 can refer to 9.2.5 in the communication standard TS38.213.
  • the definitions in this section are not discussed here for brevity.
  • Section 9 of the communication standard TS38.213 for the uplink channel cancellation processing time threshold.
  • the terminal device may clear the feedback information corresponding to the first downlink channel, or the terminal device may not demodulate the second downlink channel , which can avoid out-of-order problems when the terminal equipment receives downlink data.
  • the lower time limit for clearing the feedback information corresponding to the first downlink channel can be determined more accurately, and the feedback information corresponding to the first downlink channel can be guaranteed by the terminal device and the network device. The understanding of the validity of the information is consistent, or the lower time limit for not demodulating the second downlink channel can be determined more accurately.
  • Embodiment 1 as shown in Figure 5, the terminal device receives DCI 1, the HARQ timing in DCI 1 indicates an invalid value, and the DCI 1 is used to schedule PDSCH 1 transmission. After that, the terminal device receives the SPS PDSCH, and the PUCCH 1 resource carrying its feedback information is configured by high-level signaling (including: the time slot or sub-slot where PUCCH 1 is located, and the time-frequency domain resources of PUCCH 1 in the time slot/sub-slot , spreading sequence, etc.).
  • high-level signaling including: the time slot or sub-slot where PUCCH 1 is located, and the time-frequency domain resources of PUCCH 1 in the time slot/sub-slot , spreading sequence, etc.
  • the terminal device If the terminal device does not receive other DCI triggering it to feed back the feedback information corresponding to PDSCH 1 through PUCCH 2, and PUCCH 2 is within or before the time slot/sub-slot where PUCCH 1 is located, the terminal device discards, cancels, abandons, clears, Or the feedback information corresponding to PDSCH 1 is not stored.
  • Embodiment 1 can effectively avoid the out-of-order problem (out-of-order) when the terminal receives downlink data, and the implementation is relatively simple.
  • Embodiment 2 as shown in Figure 6, the terminal device receives DCI 1, the HARQ timing in DCI 1 indicates an invalid value, and the DCI 1 is used to schedule PDSCH 1 transmission.
  • the terminal device receives the SPS PDSCH after PDSCH 1, and the PUCCH 1 resource carrying its feedback information is configured by high-level signaling (including: the time slot or sub-slot where PUCCH 1 is located, the time-frequency of PUCCH 1 in the time slot/sub-slot domain resources, spreading sequences, etc.).
  • the terminal equipment does not receive the target DCI before time t0 (preferably, it is determined whether it is before t0 according to the end position of the PDCCH carrying the target DCI), instruct the terminal equipment to be in the time unit (slot or subslot or N) where PUCCH 1 is located.
  • the feedback information corresponding to PDSCH 1 is transmitted in or before the time domain symbols), the terminal discards (skip), cancels (drop), abandons (cancel), clears (clear), or does not store (do not buffer) PDSCH 1 corresponds to the feedback information.
  • Embodiment 2 can effectively avoid the out-of-order problem when the terminal receives downlink data.
  • Embodiment 2 introduces a time limit t0 for receiving the target DCI. Considering the actual processing delay of the terminal, the lower time limit for discarding the feedback information of PDSCH 1 can be determined more accurately. It is ensured that the terminal device and the network device have the same understanding of the validity of the feedback information.
  • Embodiment 3 as shown in Figure 7, the terminal device receives DCI 1, the HARQ timing in DCI 1 indicates an invalid value, and the DCI 1 is used to schedule PDSCH 1 transmission. If the base station sends DCI 2 to indicate that PUCCH 2 carries the feedback information of PDSCH 1, where PUCCH 2 is after the time slot/sub-slot where PUCCH 1 is located, the terminal device will give up receiving and decoding (skip decoding) the SPS PDSCH. For SPS PDSCH, the terminal device can generate NACK information.
  • Embodiment 3 cannot avoid out-of-order from the perspective of scheduling, but allows the terminal device not to demodulate the SPS PDSCH. Under the premise of ensuring that the complexity of terminal implementation is not introduced, certain flexibility is brought to base station scheduling. For example, there is no data to be transmitted on the SPS PDSCH itself, or there is a higher priority dynamic service to be transmitted, the base station can dynamically schedule PDSCH 2 transmission.
  • FIG. 8 is a schematic flowchart of a channel feedback method 300 according to an embodiment of the present application. As shown in FIG. 8 , the method 300 may include at least part of the following contents:
  • the network device sends a first downlink channel, wherein the value of the feedback sequence corresponding to the first downlink channel is an invalid value
  • the terminal device receives the first downlink channel
  • the network device sends a target downlink control channel after the first downlink channel, where the target downlink control channel is used to indicate a first uplink channel, wherein the feedback information corresponding to the first downlink channel passes through the first uplink channel transmission;
  • the terminal device receives the target downlink control channel after the first downlink channel
  • the terminal device does not expect to receive a second downlink channel after the first downlink channel and before the first uplink channel, wherein the feedback information corresponding to the second downlink channel passes through the second uplink channel configured by high-layer signaling transmission, and the second uplink channel is before the time unit where the first uplink channel is located, or the second uplink channel is in the time unit where the first uplink channel is located;
  • the network device does not send a second downlink channel after the first downlink channel and before the first uplink channel, wherein the feedback information corresponding to the second downlink channel is transmitted through the second uplink channel configured by high-level signaling , and the second uplink channel is before the time unit where the first uplink channel is located, or the second uplink channel is in the time unit where the first uplink channel is located.
  • the feedback timing may be HARQ feedback timing (HARQ-timing).
  • the value of the feedback timing corresponding to the first downlink channel is an inapplicable value, which indicates that the transmission time and resources of the feedback information corresponding to the first downlink channel cannot be determined temporarily.
  • the subsequently received downlink control information is required to trigger the determination of the transmission time and resources of the feedback information corresponding to the first downlink channel, that is, the triggering of the target downlink control information is required to determine the transmission time and resources of the feedback information corresponding to the first downlink channel.
  • the feedback codebook may be at least one of a Type-2 HARQ-ACK codebook, an Enhanced Type-2 HARQ-ACK codebook, and a Type-3 HARQ-ACK codebook.
  • the feedback information corresponding to the first downlink channel may be ACK; if the terminal device fails to receive the first downlink channel, the feedback information corresponding to the first downlink channel The information can be NACK.
  • the feedback information corresponding to the second downlink channel may be ACK; if the terminal device fails to receive the second downlink channel, the feedback information corresponding to the second downlink channel may be NACK.
  • the time unit includes one of the following:
  • a slot, a subslot, at least one time domain symbol is provided.
  • the first downlink channel includes one of the following:
  • the first downlink channel when the first downlink channel is a PDCCH, the first downlink channel carries first downlink control information, where the first downlink control information is used to indicate the release of SPS resources, or the first downlink control information
  • the downlink control information is used to indicate Scell dormancy.
  • the second downlink channel is SPS PDSCH.
  • the terminal device does not demodulate the second downlink channel, or,
  • the terminal device gives up receiving the second downlink channel, or,
  • the terminal equipment gives up decoding the second downlink channel.
  • the terminal device does not demodulate, give up receiving, or give up decoding the second downlink channel.
  • the terminal device may not send the first uplink channel.
  • the network device does not expect to receive the first uplink channel. That is, the terminal device does not feed back the feedback information corresponding to the first downlink channel through the first uplink channel.
  • the terminal device may not transmit the first uplink channel. In order to avoid out-of-order problems when the terminal receives downlink data.
  • the terminal device sends a feedback codebook after the first uplink channel, where the feedback codebook includes bits of feedback information corresponding to the second downlink channel, and the bits are set to NACK.
  • the network device receives a feedback codebook after the first uplink channel, the feedback codebook includes feedback information bits corresponding to the second downlink channel, and the bits are set as NACK.
  • the terminal device does not expect to receive the second downlink channel after the first downlink channel and before the first uplink channel. From the perspective of network device scheduling, the problem of out-of-order when the terminal device receives downlink data is avoided. . In addition, the network device does not send the second downlink channel after the first downlink channel and before the first uplink channel. From the perspective of network device scheduling, out-of-order problems when the terminal device receives downlink data is avoided.
  • Embodiment 4 as shown in Figure 9, the terminal device receives DCI 1, the HARQ timing in DCI 1 indicates an invalid value, and the DCI 1 is used to schedule PDSCH 1 transmission.
  • the PUCCH 1 resource carrying its feedback information is configured by high-level signaling (including: the time slot or sub-slot where PUCCH 1 is located, and the time-frequency domain resources of PUCCH 1 in the time slot/sub-slot , spreading sequence, etc.).
  • the base station should send DCI 2 to indicate that PUCCH 2 carries the feedback information of PDSCH 1, where PUCCH 2 is in or before the time slot/sub-slot where PUCCH 1 is located.
  • the terminal device does not receive DCI 2, it means that DCI 2 is lost, and the behavior of the terminal device is not clearly defined. That is, from the perspective of base station scheduling, the problem of out-of-order when the terminal receives downlink data is avoided. It is the most efficient from a system efficiency point of view, and the terminal implementation is the simplest.
  • the loss of DCI 2 itself is a small probability event. Since the terminal can determine that it is caused by the loss of DCI 2, it can implement processing by itself, leaving the flexibility of terminal implementation.
  • FIG. 10 shows a schematic block diagram of a terminal device 400 according to an embodiment of the present application.
  • the terminal device 400 includes:
  • the communication unit 410 is configured to receive configuration information, wherein the configuration information is used to configure the terminal device to receive a second downlink channel after the first downlink channel, and the value of the feedback timing corresponding to the first downlink channel is an invalid value , the feedback information corresponding to the second downlink channel is transmitted through the first uplink channel, and the resources of the first uplink channel are configured by high-level signaling;
  • the processing unit 420 is configured to clear the feedback information corresponding to the first downlink channel, or the processing unit 420 is configured to not demodulate the second downlink channel ;
  • the target downlink control information is used to instruct the terminal device to send feedback information corresponding to the first downlink channel before the time unit where the first uplink channel is located, or the target downlink control information is used to instruct the terminal device to send feedback information corresponding to the first downlink channel before the time unit where the first uplink channel is located.
  • the feedback information corresponding to the first downlink channel is sent in the time unit where the first uplink channel is located.
  • the processing unit 420 does not demodulate the second downlink channel, including at least one of the following:
  • the processing unit 420 does not receive the second downlink channel
  • the processing unit 420 does not decode the second downlink channel.
  • the communication unit 410 is further configured to not send the first uplink channel.
  • the communication unit 410 is further configured to send a first feedback codebook after the first uplink channel, where the first feedback codebook includes feedback information bits corresponding to the first downlink channel, and the first downlink channel The feedback information bit corresponding to the row channel is set to a negative acknowledgement NACK.
  • the communication unit 410 is further configured to send a second feedback codebook after the first uplink channel, where the second feedback codebook includes feedback information bits corresponding to the second downlink channel, the second downlink channel The corresponding feedback information bit is set to NACK.
  • the first time is the start time of the first uplink channel.
  • the first time is determined according to the start time of the first uplink channel and the first time interval.
  • the first time interval is determined according to at least one of the following:
  • Downlink shared channel processing time threshold Downlink control channel processing time threshold, uplink channel preparation time threshold, uplink channel multiplexing transmission preparation time threshold, uplink channel cancellation processing time threshold.
  • the processing unit 420 is further configured to determine whether the target downlink control information is received before the first time according to the end position of the physical downlink control channel PDCCH carrying the target downlink control information.
  • the time unit includes one of the following:
  • a slot, a subslot, at least one time domain symbol is provided.
  • the first downlink channel includes one of the following:
  • the first downlink channel carries first downlink control information, where the first downlink control information is used to indicate the release of SPS resources for semi-persistent scheduling , or, the first downlink control information is used to indicate that the secondary cell is dormant.
  • the second downlink channel is SPS PDSCH.
  • 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 respectively for realizing the method shown in FIG. 4 .
  • the corresponding process of the terminal device in 200 is not repeated here for brevity.
  • FIG. 11 shows a schematic block diagram of a terminal device 500 according to an embodiment of the present application.
  • the terminal device 500 includes:
  • the communication unit 510 is configured to receive a first downlink channel, wherein the value of the feedback sequence corresponding to the first downlink channel is an invalid value;
  • the communication unit 510 is further configured to receive a target downlink control channel after the first downlink channel, where the target downlink control channel is used to indicate the first uplink channel, wherein the feedback information corresponding to the first downlink channel passes through the first downlink channel. an uplink channel transmission;
  • the communication unit 510 is further configured to not expect to receive a second downlink channel after the first downlink channel and before the first uplink channel, wherein the feedback information corresponding to the second downlink channel is configured by a second downlink channel configured by higher layer signaling.
  • the uplink channel is transmitted, and the second uplink channel is before the time unit where the first uplink channel is located, or the second uplink channel is in the time unit where the first uplink channel is located.
  • the terminal device 500 further includes: a processing unit 520,
  • the communication unit 510 is configured to give up receiving the second downlink channel, or,
  • the processing unit 520 is configured to give up decoding the second downlink channel.
  • the communication unit 510 is further configured not to send the first uplink channel.
  • the communication unit 510 is further configured to send a feedback codebook after the first uplink channel, where the feedback codebook includes bits of feedback information corresponding to the second downlink channel, and the bits are set as negative acknowledgement NACK.
  • the time unit includes one of the following:
  • a slot, a subslot, at least one time domain symbol is provided.
  • the first downlink channel includes one of the following:
  • Physical downlink shared channel PDSCH Physical downlink control channel PDCCH.
  • the first downlink channel carries first downlink control information, where the first downlink control information is used to indicate the release of SPS resources for semi-persistent scheduling , or, the first downlink control information is used to indicate that the secondary cell is dormant.
  • the second downlink channel is SPS PDSCH.
  • 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 500 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 500 are respectively for realizing the method shown in FIG. 8 .
  • the corresponding process of the terminal device in 300 is not repeated here for brevity.
  • FIG. 12 shows a schematic block diagram of a network device 600 according to an embodiment of the present application. As shown in Figure 12, the network device 600 includes:
  • a communication unit 610 configured to send a first downlink channel, wherein the value of the feedback sequence corresponding to the first downlink channel is an invalid value
  • the communication unit 610 is further configured to send a target downlink control channel after the first downlink channel, where the target downlink control channel is used to indicate the first uplink channel, wherein the feedback information corresponding to the first downlink channel passes through the first downlink channel. an uplink channel transmission;
  • the communication unit 610 is further configured to not send a second downlink channel after the first downlink channel and before the first uplink channel, wherein the feedback information corresponding to the second downlink channel is configured by a second downlink channel configured by higher layer signaling.
  • the uplink channel is transmitted, and the second uplink channel is before the time unit where the first uplink channel is located, or the second uplink channel is in the time unit where the first uplink channel is located.
  • the communication unit 610 is further configured to not expect to receive the first uplink channel.
  • the communication unit 610 is further configured to receive a feedback codebook after the first uplink channel, where the feedback codebook includes bits of feedback information corresponding to the second downlink channel, and the bits are set as a negative acknowledgement NACK.
  • the time unit includes one of the following:
  • a slot, a subslot, at least one time domain symbol is provided.
  • the first downlink channel includes one of the following:
  • Physical downlink shared channel PDSCH Physical downlink control channel PDCCH.
  • the first downlink channel carries first downlink control information, where the first downlink control information is used to indicate the release of SPS resources for semi-persistent scheduling , or, the first downlink control information is used to indicate that the secondary cell is dormant.
  • the second downlink channel is SPS PDSCH.
  • 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 600 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 600 are respectively for realizing the method shown in FIG. 8 .
  • the corresponding process of the network device in 300 is not repeated here for brevity.
  • FIG. 13 is a schematic structural diagram of a communication device 700 provided by an embodiment of the present application.
  • the communication device 700 shown in FIG. 13 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 communication device 700 may further include a memory 720 .
  • the processor 710 may call and run a computer program from the memory 720 to implement the methods in the embodiments of the present application.
  • the memory 720 may be a separate device independent of the processor 710 , or may be integrated in the processor 710 .
  • the communication device 700 may further include a transceiver 730, and the processor 710 may control the transceiver 730 to communicate with other devices, specifically, may send information or data to other devices, or receive other devices Information or data sent by the device.
  • the processor 710 may control the transceiver 730 to communicate with other devices, specifically, may send information or data to other devices, or receive other devices Information or data sent by the device.
  • the transceiver 730 may include a transmitter and a receiver.
  • the transceiver 730 may further include antennas, and the number of the antennas may be one or more.
  • the communication device 700 may specifically be the network device in this embodiment of the present application, and the communication device 700 may implement the corresponding processes implemented by the network device in each method in the embodiment of the present application. For the sake of brevity, details are not repeated here. .
  • the communication device 700 may specifically be the mobile terminal/terminal device of the embodiments of the present application, and the communication device 700 may implement the corresponding processes implemented by the mobile terminal/terminal device in each method of the embodiments of the present application, for the sake of brevity. , and will not be repeated here.
  • FIG. 14 is a schematic structural diagram of an apparatus according to an embodiment of the present application.
  • the apparatus 800 shown in FIG. 14 includes a processor 810, and the processor 810 can call and run a computer program from a memory, so as to implement the method in this embodiment of the present application.
  • the apparatus 800 may further include a memory 820 .
  • the processor 810 may call and run a computer program from the memory 820 to implement the methods in the embodiments of the present application.
  • the memory 820 may be a separate device independent of the processor 810 , or may be integrated in the processor 810 .
  • the apparatus 800 may further include an input interface 830 .
  • the processor 810 may control the input interface 830 to communicate with other devices or chips, and specifically, may acquire information or data sent by other devices or chips.
  • the apparatus 800 may further include an output interface 840 .
  • the processor 810 may control the output interface 840 to communicate with other devices or chips, and specifically, may output information or data to other devices or chips.
  • the apparatus can be applied to the network equipment in the embodiments of the present application, and the apparatus can implement the corresponding processes implemented by the network equipment in the various methods of the embodiments of the present application, which are not repeated here for brevity.
  • the apparatus can be applied to the mobile terminal/terminal equipment in the embodiments of the present application, and the apparatus can implement the corresponding processes implemented by the mobile terminal/terminal equipment in each method of the embodiments of the present application.
  • the apparatus can implement the corresponding processes implemented by the mobile terminal/terminal equipment in each method of the embodiments of the present application.
  • the apparatus can implement the corresponding processes implemented by the mobile terminal/terminal equipment in each method of the embodiments of the present application.
  • the device mentioned in the embodiment of the present application may also be a chip.
  • it can be a system-on-chip, a system-on-a-chip, a system-on-a-chip, or a system-on-a-chip.
  • FIG. 15 is a schematic block diagram of a communication system 900 provided by an embodiment of the present application. As shown in FIG. 15 , the communication system 900 includes a terminal device 910 and a network device 920 .
  • the terminal device 910 can be used to implement the corresponding functions implemented by the terminal device in the above method
  • the network device 920 can be used to implement the corresponding functions implemented by the network device in the above method. For brevity, details are not repeated here. .
  • the processor in this embodiment of the present application may be an integrated circuit chip, which has a signal processing capability.
  • each step of the above method embodiment may be completed by a hardware integrated logic circuit in a processor or an instruction 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 Programming 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 methods disclosed in conjunction with the embodiments of the present application may be directly embodied as executed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor.
  • the software module may be located in random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers and other storage media mature in the art.
  • 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 this embodiment of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM, PROM), an erasable programmable read-only memory (Erasable PROM, EPROM), an electrically programmable read-only memory (Erasable PROM, EPROM). Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory.
  • Volatile memory may be Random Access Memory (RAM), which acts as an external cache.
  • RAM random access memory
  • SRAM Static RAM
  • DRAM Dynamic RAM
  • SDRAM Synchronous DRAM
  • SDRAM double data rate synchronous dynamic random access memory
  • Double Data Rate SDRAM DDR SDRAM
  • enhanced SDRAM ESDRAM
  • synchronous link dynamic random access memory Synchlink DRAM, SLDRAM
  • 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) and so on. That is, the memory in the embodiments of the present application is intended to include but not limited to these and any other suitable types of memory.
  • Embodiments of the present application further provide a computer-readable storage medium for storing a computer program.
  • 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 various 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 various 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 each method of the embodiments of the present application. , and are not repeated here for brevity.
  • Embodiments of the present application also provide a computer program product, including computer program instructions.
  • the computer program product can be applied to the network device in the embodiments of the present application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the network device in each method of the embodiments of the present application. 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 each method of the embodiments of the present application, For brevity, details are not repeated here.
  • the embodiments of the present application also provide a computer program.
  • the computer program can be applied to the network device in the embodiments of the present application.
  • the computer program When the computer program is run on the computer, it causes the computer to execute the corresponding processes implemented by the network device in each method of the embodiments of the present application. For the sake of brevity. , and will not be repeated here.
  • the computer program may be applied to the mobile terminal/terminal device in the embodiments of the present application, and when the computer program is run on the computer, the mobile terminal/terminal device implements the various methods of the computer program in the embodiments of the present application.
  • the corresponding process for the sake of brevity, will not be repeated here.
  • the disclosed system, apparatus and method may be implemented in other manners.
  • the apparatus 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 may be combined or Can be integrated into another system, or some features can be ignored, or not implemented.
  • the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.
  • the functions, if implemented in the form of software functional units and sold or used as independent products, may be stored in a computer-readable storage medium.
  • the technical solution of the present application can be embodied in the form of a software product in essence, or the part that contributes to the prior art or the part of the technical solution.
  • the computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program codes .

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Abstract

La présente invention concerne un procédé de rétroaction de canal, un dispositif terminal et un dispositif de réseau qui permettent d'éviter le problème du désordre lors de la réception de données de liaison descendante alors que la valeur d'une séquence temporelle de rétroaction correspondant à un canal de liaison descendante est une valeur invalide. Le procédé de rétroaction de canal comprend les étapes suivantes : le dispositif de terminal reçoit des informations de configuration qui sont utilisées pour configurer le dispositif terminal pour qu'il reçoive un second canal de liaison descendante après un premier canal de liaison descendante, la valeur d'une séquence temporelle de rétroaction correspondant au premier canal de liaison descendante étant une valeur invalide, les informations de rétroaction correspondant au second canal de liaison descendante étant transmises par l'intermédiaire d'un premier canal de liaison montante, et les ressources du premier canal de liaison montante étant configurées par une signalisation de haut niveau ; et lorsque les informations de commande de liaison descendante cibles ne sont pas reçues avant un premier temps, le dispositif terminal efface des informations de rétroaction correspondant au premier canal de liaison descendante, ou le dispositif terminal ne démodule pas le second canal de liaison descendante, les informations de commande de liaison descendante cibles étant utilisées pour ordonner au dispositif terminal d'envoyer les informations de rétroaction correspondant au premier canal de liaison descendante avant ou pendant une unité de temps dans laquelle se trouve le premier canal de liaison montante.
PCT/CN2020/115584 2020-09-16 2020-09-16 Procédé de rétroaction de canal, dispositif terminal et dispositif de réseau WO2022056725A1 (fr)

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PCT/CN2020/115584 WO2022056725A1 (fr) 2020-09-16 2020-09-16 Procédé de rétroaction de canal, dispositif terminal et dispositif de réseau
CN202080102467.0A CN116438760A (zh) 2020-09-16 2020-09-16 信道反馈方法、终端设备和网络设备

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PCT/CN2020/115584 WO2022056725A1 (fr) 2020-09-16 2020-09-16 Procédé de rétroaction de canal, dispositif terminal et dispositif de réseau

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