WO2021197236A1 - Procédé et dispositif de rétroaction - Google Patents

Procédé et dispositif de rétroaction Download PDF

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Publication number
WO2021197236A1
WO2021197236A1 PCT/CN2021/083387 CN2021083387W WO2021197236A1 WO 2021197236 A1 WO2021197236 A1 WO 2021197236A1 CN 2021083387 W CN2021083387 W CN 2021083387W WO 2021197236 A1 WO2021197236 A1 WO 2021197236A1
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Prior art keywords
dci
harq
sps
configuration
sps configuration
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PCT/CN2021/083387
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English (en)
Chinese (zh)
Inventor
陈晓航
鲁智
曾超君
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维沃移动通信有限公司
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Publication of WO2021197236A1 publication Critical patent/WO2021197236A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
    • 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
    • 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
    • H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H04L5/0055—Physical resource allocation for ACK/NACK
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames

Definitions

  • the embodiment of the present invention relates to the field of communication technology, and in particular to a feedback method and device.
  • the network device can control the downlink semi-persistent scheduling (semi-static scheduling) configured for the UE through downlink control information (DCI). -persistent scheduling, SPS) configuration release (or deactivation).
  • DCI downlink control information
  • -persistent scheduling, SPS configuration release (or deactivation).
  • the UE may transmit hybrid automatic repeat request (HARQ) feedback (Acknowledgement) information for the DCI on the uplink resource indicated by the DCI.
  • HARQ hybrid automatic repeat request
  • the UE can be configured with a one-shot HARQ-ACK codebook feedback mechanism to feed back HARQ-ACK information corresponding to all HARQ processes of all carriers through a one-shot HARQ-ACK codebook.
  • the one-shot HARQ-ACK codebook may include multiple feedback positions, each feedback position corresponds to a process number, and each feedback position is used to transmit HARQ-ACK information corresponding to a HARQ process.
  • the UE can determine the feedback position corresponding to the HARQ process number from the multiple feedback positions according to the HARQ process number corresponding to the downlink signal, and then pass The feedback position feeds back the HARQ-ACK information.
  • the DCI cannot indicate the HARQ process number through the HARQ process indicator field in the DCI, so that the UE cannot perform one-shot HARQ -Determine the feedback position of the HARQ-ACK information for feeding back the DCI in the ACK codebook, thereby causing the UE to be unable to feed back the HARQ-ACK information of the DCI.
  • the embodiment of the present invention provides a feedback method and device, which can solve the problem that the UE cannot feedback the HARQ-ACK information of the DCI.
  • a feedback method is provided, which is applied to a UE.
  • the method includes: feeding back a HARQ-ACK codebook, the HARQ-ACK codebook includes DCI feedback information, and the feedback information is in the HARQ-ACK codebook.
  • the position in the ACK codebook is any one of the following: a predefined position, a position configured by a network device, a position corresponding to a process number, and a first reserved position determined from the reserved positions of the HARQ-ACK codebook; Wherein, the process number is determined according to the time domain information corresponding to the DCI, or configured for the network device; the DCI instructs to release the SPS configuration.
  • a feedback device may include: a feedback module; the feedback module is used to feed back a HARQ-ACK codebook, and the HARQ-ACK codebook includes DCI feedback information,
  • the position of the feedback information in the HARQ-ACK codebook is any one of the following: a predefined position, a position of the network configuration, a position corresponding to the process number, and a position determined from the reserved position of the HARQ-ACK codebook The first reserved position; where the process number is determined according to the time domain information corresponding to the DCI, or configured for the network device; the DCI indicates to release the SPS configuration.
  • a UE in a third aspect of the embodiments of the present invention, includes a processor, a memory, and a computer program stored in the memory and capable of being run on the processor.
  • the computer program implements the above-mentioned first aspect when the computer program is executed by the processor. Steps in the feedback method.
  • a computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the feedback method as described in the first aspect are implemented.
  • the UE may be in a predefined position in the HARQ-ACK codebook, the position configured by the network device, the position corresponding to the process number, or the first reserved position determined from the HARQ-ACK codebook, Transmit feedback information for the DCI configured to release the SPS, that is, the UE can determine the position of the HARQ-ACK information for the DCI in the HARQ-ACK codebook according to the above-mentioned multiple methods, so that the UE is sending feedback to the network device
  • the HARQ-ACK codebook can be correctly constructed, so that based on the HARQ-ACK codebook, the UE can correctly feed back the HARQ-ACK information for the DCI.
  • FIG. 1 is a schematic diagram of the architecture of a communication system provided by an embodiment of the present invention
  • FIG. 2 is a flowchart of a feedback method provided by an embodiment of the present invention.
  • FIG. 3 is one of the schematic diagrams of a method for determining the position of feedback information in a codebook provided by an embodiment of the present invention
  • FIG. 4 is a second schematic diagram of a method for determining the position of feedback information in a codebook provided by an embodiment of the present invention
  • FIG. 5 is a third schematic diagram of a method for determining the position of feedback information in a codebook provided by an embodiment of the present invention.
  • FIG. 6 is a fourth schematic diagram of a method for determining the position of feedback information in a codebook provided by an embodiment of the present invention.
  • Fig. 7 is a fifth schematic diagram of a method for determining the position of feedback information in a codebook provided by an embodiment of the present invention.
  • FIG. 8 is a sixth schematic diagram of a method for determining the position of feedback information in a codebook provided by an embodiment of the present invention.
  • FIG. 9 is a schematic structural diagram of a feedback device provided by an embodiment of the present invention.
  • FIG. 10 is a schematic diagram of hardware of a UE provided by an embodiment of the present invention.
  • first and second in the description and claims of the embodiments of the present invention are used to distinguish different objects, rather than to describe a specific order of objects.
  • first preset cell type and the second preset cell type are used to distinguish different preset cell types, rather than to describe a specific sequence of preset cell types.
  • plural means two or more.
  • a plurality of elements refers to two elements or more than two elements.
  • words such as “exemplary” or “for example” are used as examples, illustrations, or illustrations. Any embodiment or design solution described as “exemplary” or “for example” in the embodiments of the present invention should not be construed as being more preferable or advantageous than other embodiments or design solutions. To be precise, words such as “exemplary” or “for example” are used to present related concepts in a specific manner.
  • eMBB enhanced mobile broadband
  • mMTC massive machine type communications
  • URLLC ultra-reliable low-latency communications
  • the three types of usage scenarios have large differences in performance requirements in terms of data rate, delay, reliability, number of connections, traffic density, and mobility.
  • the eMBB scenario focuses on data rate and traffic density
  • the mMTC scenario focuses on the number of connections
  • the URLLC scenario focuses on latency and reliability.
  • a TB can support a single downlink HARQ process of a UE, and can also support multiple downlink HARQ processes of a UE.
  • asynchronous downlink HARQ processes and adaptive downlink HARQ processes can be supported.
  • HARQ-ACKs for multiple physical downlink control channels (PDCCH) can be transmitted in one uplink data/control area in time, and the UE can be in the uplink data/control area.
  • the above constitutes a HARQ-ACK codebook.
  • the network equipment needs to indicate the minimum HARQ processing time of the UE.
  • the minimum HARQ processing time represents the minimum time required from the UE receiving downlink data to the timing of feeding back the corresponding HARQ-ACK.
  • the network device can specify the timing between receiving the physical downlink shared channel (PDSCH) and feedback of the corresponding ACK/NACK in the DCI.
  • PDSCH physical downlink shared channel
  • the UE can support two types of HARQ-ACK codebooks, namely: semi-static HARQ-ACK codebook (semi-static HARQ-ACK codebook) and dynamic HARQ-ACK codebook (dynamic HARQ-ACK codebook) ).
  • the UE can configure PDCCH monitoring accession (PDCCH monitoring accession), PDSCH-time domain resource allocation (PDSCH-time domain resource allocation), PDSCH configuration according to radio resource control (RRC) configuration Parameters such as HARQ-ACK feedback timing (dl-Data To UL-ACK or PDSCH-to HARQ-timing) are used to determine all PDSCHs that may be fed back in a certain time slot, and the HARQ-ACK codebook is determined. Since it may include PDSCH for actual scheduling and PDSCH for unscheduled, the semi-static HARQ-ACK codebook is generally larger.
  • the UE determines the HARQ-ACK codebook according to the actually scheduled PDSCH. Since only the actually scheduled PDSCH is fed back, the size of the dynamic HARQ-ACK codebook is usually smaller than that of the semi-static HARQ-ACK codebook. Codebook size. Generally, which type of codebook the UE uses can be determined through RRC configuration.
  • NR-U in order to ensure that both the UE and the network equipment have the same understanding of the number of HARQ-ACK codebook bits, and that the UE can feed back the HARQ-ACK information of all the configured HARQ processes of the UE, one is introduced in the related technology.
  • -shot HARQ-ACK codebook feedback mechanism based on this feedback mechanism, the UE can feed back HARQ-ACK information for all possible codewords of all HARQ processes configured on all carriers currently configured for the UE.
  • each can be fed back in the one-shot HARQ-ACK codebook.
  • the new data indicator (NDI) of the codeword If a codeword of a HARQ process has not been scheduled, the NDI corresponding to the codeword can be defined to be equal to 0. Among them, the network device can configure whether the NDI is included in the one-shot HARQ-ACK codebook.
  • DAI Downlink assignment index
  • the DCI used for downlink grants includes the DAI field, which can be used to indicate how much each configured serving cell (serving cell) has sent to the current subframe (the current subframe is in the HARQ feedback window) PDCCH with PDSCH transmission or how many PDCCHs indicating the release of downlink SPS, the value will be updated between each subframe.
  • DAI field can be used to indicate how much each configured serving cell (serving cell) has sent to the current subframe (the current subframe is in the HARQ feedback window) PDCCH with PDSCH transmission or how many PDCCHs indicating the release of downlink SPS, the value will be updated between each subframe.
  • uplink control information uplink control information
  • UCI uplink control information
  • CSI channel state information
  • the protocol can implicitly determine how many bits of HARQ-ACK information to transmit according to some rules. Based on this, the network equipment can correctly receive the UCI and/or uplink shared channel (UL-SCH) part of the PUSCH.
  • UL-SCH uplink shared channel
  • the network device when it performs uplink scheduling PUSCH transmission, it carries the Total DAI field in the DCI used for uplink grant, which is used to inform the UE of the number of HARQ-ACK bits in this transmission. .
  • the embodiment of the present invention provides a feedback method and device.
  • the UE can be in a predefined position in the HARQ-ACK codebook, a position configured by a network device, a position corresponding to a process number, or a first determined position from the HARQ-ACK codebook.
  • a reserved position to transmit feedback information for DCI that is, the UE can determine the position in the HARQ-ACK codebook for the HARQ-ACK information for the DCI configured to release the SPS according to the above-mentioned multiple methods, so that the UE is in
  • the HARQ-ACK codebook can be correctly constructed, so that based on the HARQ-ACK codebook, the UE can correctly feed back the HARQ-ACK information for the DCI.
  • the feedback method and device provided by the embodiment of the present invention can be applied to a communication system. It can be specifically applied to the process in which the UE sends feedback information to the network device based on the communication system.
  • the embodiments of the present invention can be applied to various communication systems, for example, 5G communication systems, future evolution systems, or other communication systems. It can include multiple application scenarios, such as machine-to-machine (M2M), D2M, enhanced mobile Internet (eMBB), and ultra-high reliability and ultra-low latency communication (uRLLC) scenarios.
  • M2M machine-to-machine
  • eMBB enhanced mobile Internet
  • uRLLC ultra-high reliability and ultra-low latency communication
  • FIG. 1 shows a schematic diagram of the architecture of a communication system provided by an embodiment of the present invention.
  • the communication system may include UE 01 and network equipment 02. Among them, a connection and communication can be established between the UE 01 and the network device 02.
  • a UE is a device that provides users with voice and/or data connectivity, a handheld device with wired/wireless connection functions, or other processing devices connected to a wireless modem.
  • the UE may communicate with one or more core network devices through a radio access network (RAN).
  • RAN radio access network
  • the UE can be a mobile terminal, such as a mobile phone (or called a "cellular" phone) and a computer with a mobile terminal.
  • the UE can also be a portable, pocket-sized, handheld, built-in computer or vehicle-mounted mobile device, which exchanges languages with the RAN And/or data, for example, personal communication service (PCS) phones, cordless phones, Session Initiation Protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (personal digital assistants) , PDA) and other equipment.
  • PCS personal communication service
  • SIP Session Initiation Protocol
  • WLL wireless local loop
  • PDA personal digital assistants
  • the UE may also be referred to as a user agent (User Agent) or terminal equipment.
  • FIG. 1 shows that the UE is a mobile phone as an example.
  • the network device may be a base station.
  • a base station is a device deployed in the RAN to provide wireless communication functions for the UE.
  • the base station may include various forms of macro base stations, micro base stations, relay stations, access points, and so on.
  • the names of devices with base station functions may be different.
  • NodeB base stations
  • LTE long term evolution
  • eNB evolved NodeB
  • 5G fifth generation mobile communication
  • the name "base station” may change.
  • unlicensed bands can be used as a supplement to licensed bands to help operators expand services.
  • unlicensed frequency bands can work in 5GHz, 37GHz and 60GHz frequency bands.
  • the large bandwidth (80MHz or 100MHz) of the unlicensed frequency band can reduce the implementation complexity of the base station and UE.
  • the network device can release (or deactivate, release or deactivated) one or more DL SPS configurations that the UE has activated by sending DCI operate.
  • the UE When the UE detects the DCI for releasing the SPS, the UE feeds back the corresponding HARQ-ACK information on the corresponding uplink resource (usually PUCCH, the PUCCH resource is indicated by the SPS release DCI) for the DCI for releasing the SPS.
  • the UE feeds back the corresponding HARQ-ACK information on the corresponding uplink resource (usually PUCCH, the PUCCH resource is indicated by the SPS release DCI) for the DCI for releasing the SPS.
  • the execution subject of the feedback method provided by the embodiment of the present invention may be the above-mentioned UE, or may be a functional module and/or functional entity in the UE that can implement the feedback method.
  • the specific one can be determined according to actual usage requirements.
  • the embodiment of the present invention Not limited.
  • the following uses UE as an example to illustrate the feedback method provided in the embodiment of the present invention.
  • an embodiment of the present invention provides a feedback method, which is applied to a UE.
  • the feedback method may include the following step 201.
  • Step 201 The UE feeds back the HARQ-ACK codebook, the HARQ-ACK codebook includes DCI feedback information, and the position of the feedback information in the HARQ-ACK codebook is any one of the following: predefined location, network device configuration The position of, the position corresponding to the process number, and the first reserved position determined from the reserved positions of the HARQ-ACK codebook.
  • the above DCI instructs to release the SPS configuration.
  • the aforementioned DCI may be the DCI that the network device sends to the UE to release the SPS (ie, SPS release DCI), or may be other DCI related to semi-persistent scheduling, for example, it may be DCI or uplink related to uplink or downlink semi-persistent scheduling.
  • Configure the DCI related to authorization may also be referred to as the DCI that deactivates the SPS (deactivation).
  • the DCI may indicate the SPS configuration, may carry the configuration information of the SPS configuration, and may also carry the configuration information indicating the SPS configuration.
  • the feedback information of the foregoing DCI may be HARQ-ACK information
  • the HARQ-ACK information may be the feedback information of the foregoing DCI for releasing the SPS.
  • the position of the above feedback information in the HARQ-ACK codebook is a predefined position.
  • the predefined position may be the start position or the end position of the HARQ-ACK codebook.
  • the UE may determine that the start position or the end position of the HARQ-ACK codebook is the position of the feedback information for the aforementioned DCI in the HARQ-ACK codebook.
  • positions in the codebook may also be predefined as the positions of the feedback information for the DCI in the HARQ-ACK codebook.
  • the position of the feedback information in the HARQ-ACK codebook is the position configured by the network device.
  • the location where the network device is configured may be configured by the network device through RRC.
  • the UE may determine the position of the above-mentioned DCI feedback information in the HARQ-ACK codebook according to the information carried in the RRC.
  • the position of the feedback information in the HARQ-ACK codebook is the position corresponding to the process number.
  • the process number is determined according to the time domain information corresponding to the DCI, or configured for the network device.
  • one process number may correspond to the position of one HARQ-ACK information in the codebook.
  • the UE may determine the position corresponding to the process number in the HARQ-ACK codebook as the position of the feedback information in the HARQ-ACK codebook according to the process number.
  • the process number in the embodiment of the present invention may be the process number of the HARQ process.
  • the position of the feedback information in the HARQ-ACK codebook is the first reserved position determined from the reserved positions of the HARQ-ACK codebook.
  • the HARQ-ACK codebook includes the position of the feedback information corresponding to each HARQ process, and may also include reserved positions.
  • the UE may feed back the position of the feedback information for the above DCI from the reserved positions, or may determine the position of the feedback information corresponding to each HARQ process. The location of DCI's feedback information.
  • the first reserved position may be configured by a network device.
  • the first reserved position may be configured by the network device for the UE through RRC.
  • the HARQ-ACK codebook may be a one-shot HARQ-ACK codebook.
  • the UE can be in a predefined position in the HARQ-ACK codebook, the position configured by the network device, the position corresponding to the process number, or the first reservation determined from the HARQ-ACK codebook Location, transmission of feedback information for DCI, that is, the UE can determine the position in the HARQ-ACK codebook for the HARQ-ACK information for the DCI configured to release the SPS according to the above-mentioned multiple methods, so that the UE can communicate to the network equipment
  • the HARQ-ACK codebook can be correctly constructed, so that based on the HARQ-ACK codebook, the UE can correctly feed back the HARQ-ACK information for the DCI.
  • the time domain information corresponding to the DCI may be based on the following (a) to (e) At least one of the determinations:
  • the foregoing second SPS configuration is indicated by the foregoing DCI or corresponding to the foregoing DCI.
  • the time domain information may be time slots and/or orthogonal frequency division multiplexing (OFDM) symbols.
  • OFDM orthogonal frequency division multiplexing
  • the time domain information corresponding to the DCI may be the slot position corresponding to the DCI or the OFDM symbol corresponding to the DCI.
  • the time domain unit where the DCI is located may be the time slot where the DCI is located or the symbol where the DCI is located.
  • the time domain offset indicated by the DCI may be the slot offset indicated by the DCI or the symbol offset indicated by the DCI.
  • the SLIV corresponding to the downlink shared channel can be the start time slot and the length of the time slot, or the start symbol and the length of the symbol.
  • the UE receives the DCI at a receiving moment, and the UE may determine the time domain position (including the time slot and/or symbol position) of the SPS downlink shared channel most recently after the receiving moment as the time domain information corresponding to the DCI.
  • the downlink shared channel configured by the SPS may be a PDSCH configured by the SPS.
  • the above-mentioned SLIV may be the SLIV indicated by the DCI, or may be the SLIV corresponding to the SPS PDSCH configured by the second SPS.
  • At least one of the above-mentioned time domain offset and SLIV may be determined according to time domain resource allocation (TDRA) information corresponding to DCI.
  • TDRA time domain resource allocation
  • the time domain information corresponding to the above DCI may be any one of the following (1) to (10).
  • the time domain information corresponding to the above DCI may be (9) or (10):
  • time slot calculations can be used, coincidence calculations can be used, time slots and symbols can also be used for calculations, that is, part of the information in DCI can be used for calculation. Indicate the time slot, and part of the information may indicate the symbol.
  • the symbol or the time slot may be converted first, and then the calculation is performed, which is not specifically limited in the embodiment of the present invention.
  • the time domain information corresponding to the DCI may be the following (13) or (14).
  • the UE can use multiple determination methods to determine the time domain information corresponding to the DCI configured to release the SPS, so that the process ID can be determined flexibly according to the time domain information corresponding to the DCI, and then the DCI can be determined according to the position corresponding to the process ID.
  • the position of the feedback information of the DCI in the HARQ-ACK codebook can be determined according to the corresponding position of the process ID in the HARQ-ACK codebook.
  • the SPS configuration indicated by the DCI may be one SPS configuration or multiple SPS configurations. Then, the foregoing process number can be combined with the difference in the number of SPS configurations indicated by the DCI to select different acquisition methods.
  • the above process number in the case where the above process number is determined according to the time domain information corresponding to the DCI, if the DCI indicates to release an SPS configuration, the above process number may be the UE according to the time domain information corresponding to the DCI And the above-mentioned DCI indicates that the release of an SPS configuration is determined.
  • the corresponding HARQ process number may be one or multiple.
  • the UE can determine a process ID from multiple process IDs corresponding to the SPS configuration according to the time domain information corresponding to the DCI.
  • the configuration index of the foregoing one SPS configuration may be indicated in the DCI, or may not indicate the configuration index of the foregoing one SPS configuration.
  • the above process number in the case where the above process number is determined according to the time domain information corresponding to the DCI, if the DCI indicates to release multiple SPS configurations, the above process number may be the time corresponding to the DCI according to the UE.
  • the domain information and the first SPS configuration are determined, and the first SPS configuration is one SPS configuration among multiple SPS configurations that the DCI indicates to be released, or one SPS configuration configured by the network device for the UE.
  • the above-mentioned second SPS configuration is the one SPS configuration; when the DCI indicates multiple SPS configurations, if the above process number is that the UE corresponds to the DCI If the domain information and the first SPS configuration in the multiple SPS configurations are determined, the above-mentioned second SPS configuration is the first SPS configuration.
  • the foregoing process number may be a process number determined by the UE according to the time domain information corresponding to the DCI and the multiple process numbers corresponding to the first SPS configuration.
  • the SPS configuration in the UE may be one SPS configuration configured by the network device for the UE, or may be multiple SPS configurations configured by the network device for the UE, which is not specifically limited in the embodiment of the present invention.
  • the first SPS configuration is the multiple SPS configurations indicated by the DCI to release or the SPS configuration configured by the network device for the UE, the SPS configuration with the largest configuration index value (configuration index) or the smallest configuration index value SPS configuration.
  • the multiple SPS configurations indicated by the DCI to be released can be SPS configurations that have been activated in the UE; the SPS configuration configured by the network device for the UE can be the activated SPS configuration or the deactivated (or released) SPS configuration.
  • the SPS configuration is not specifically limited in the embodiment of the present invention.
  • the foregoing process number may be the HARQ process number corresponding to the SPS configuration with the largest configuration index value among the multiple activated SPS configurations indicated to be released by the DCI, or the SPS with the smallest configuration index value among the multiple activated SPS configurations indicated to be released by the DCI.
  • Configure the corresponding HARQ process number can also correspond to the HARQ process number corresponding to the SPS configuration with the largest configuration index in the SPS configuration configured by the network device for the UE, or the SPS configuration with the smallest configuration index in the SPS configuration configured by the network device for the UE The HARQ process ID.
  • f time domain information corresponding to the DCI
  • f can be determined according to the configuration period of the SPS configuration, the corresponding HARQ process number (or the offset value of the HARQ process number) of the SPS configuration, and the maximum number of HARQ processes supported by the UE.
  • the UE when the UE supports multiple carriers, the UE may also combine the SPS release of the carrier identifier (CIF) of the DCI and/or the downlink assignment index (DAI) and The method in the foregoing method embodiment determines the position in the HARQ-ACK codebook of the HARQ-ACK information corresponding to the DCI that releases the SPS on the corresponding carrier.
  • CIF carrier identifier
  • DAI downlink assignment index
  • the network device can use the CIF carried by the DCI, which indicates the carrier number where the released SPS configuration is located.
  • One carrier number can correspond to at least one HARQ-ACK process.
  • the UE can also use the time domain information from In the position of at least one piece of HARQ-ACK information corresponding to the carrier number in the HARQ-ACK codebook, the position of the HARQ-ACK information corresponding to the DCI in the HARQ-ACK codebook is determined.
  • the NDI of the corresponding HARQ-ACK is always 0, or the NDI value indicated by the DCI.
  • the NDI value may indicate whether the HARQ-ACK information is retransmitted information, and the NDI value may also be used to indicate whether the information configured by the network device is retransmitted.
  • the UE detects the DCI that releases the SPS.
  • the UE can determine the HARQ process number k according to the time domain information indicated in the DCI; then, the UE can determine the HARQ-release SPS according to the determined HARQ process number k.
  • the position of the ACK bit (that is, the feedback information of the DCI) in the HARQ-ACK codebook, and the HARQ-ACK bit for releasing the SPS is located in the HARQ-ACK position corresponding to the HARQ process number k in the HARQ-ACK codebook.
  • the DCI corresponds to the release of an SPS configuration, and the DCI may indicate the configuration index of the released SPS configuration, or may not indicate the configuration index of the released SPS.
  • the UE detects the DCI for releasing the SPS, and the DCI configures the released SPS as SPS configuration 1.
  • the UE can determine that the HARQ process number is k according to the time domain information of the first SPS PDSCH of SPS configuration 1 after the DCI reception time, and determine that the HARQ-ACK bit for releasing the SPS is in the HARQ-ACK according to the HARQ process number k.
  • the position in the codebook, the HARQ-ACK bit of the released SPS is located in the HARQ-ACK position corresponding to the HARQ process number k in the HARQ-ACK codebook.
  • the DCI of the released SPS may indicate the configuration index of the released SPS configuration, or may not indicate the configuration index of the released SPS. After the UE receives the DCI for releasing the SPS, it can determine that the released SPS is an activated SPS.
  • the UE detects the DCI that releases the SPS, and the DCI will release multiple activated SPS configurations, namely SPS configuration 1 to SPS configuration 4.
  • the corresponding HARQ process is HARQ process 1 to HARQ process k
  • the configuration index corresponding to SPS configuration 2 2 (ie configuration index)
  • the corresponding HARQ process The process is HARQ process k+1 to HARQ process k1
  • the configuration index value corresponding to SPS configuration 3 is 3
  • the corresponding HARQ process is k1+1 to HARQ process k2
  • the configuration index value corresponding to SPS configuration 4 is 4, and the corresponding HARQ The process is k2+1 to HARQ process k3.
  • the UE determines that the SPS configuration with the smallest configuration index among the multiple activated SPS configurations released by the DCI is SPS configuration 1. According to the HARQ process 1 to HARQ process k corresponding to SPS configuration 1, and the time domain information indicated in the DCI, the HARQ is determined The process number is k, and according to the HARQ process number k, the position of the HARQ-ACK bit for releasing the SPS in the HARQ-ACK codebook is determined. The HARQ-ACK bit for releasing the SPS is located in the HARQ-ACK codebook and the HARQ process The HARQ-ACK position corresponding to the number k.
  • the UE is configured with 4 SPS configurations, SPS configuration 1 to SPS configuration 4.
  • the UE detects the DCI, and the DCI will release multiple activated SPS configurations, namely SPS configuration 3 and SPS configuration 4.
  • the determined SPS configuration with the smallest configuration index value among the SPS configurations configured by the UE is SPS configuration 1.
  • the HARQ process 1 to HARQ process k corresponding to SPS configuration 1 is determined by combining the time domain information indicated in the DCI to determine the HARQ process number as k , And according to the HARQ process number k, determine the position of the HARQ-ACK bit for releasing the SPS in the HARQ-ACK codebook.
  • the HARQ-ACK bit for releasing the SPS is located in the HARQ-ACK codebook corresponding to the HARQ process number k HARQ-ACK position.
  • the HARQ-ACK codebook may include reserved positions, that is, the HARQ-ACK codebook includes the HARQ-ACK corresponding to each HARQ process.
  • the location can also include a reserved location for feedback of other information.
  • the HARQ-ACK codebook may not include reserved positions. If the HARQ-ACK codebook does not include reserved positions, the position of the feedback information for DCI in the HARQ-ACK codebook can be determined according to the method in the above-mentioned embodiment. If the HARQ-ACK codebook includes reserved positions, the The position of the feedback information in the HARQ-ACK codebook may be determined according to the method in the foregoing embodiment, or may be determined according to the method in the following embodiment.
  • the reserved positions of the HARQ-ACK codebook are N reserved positions, and N is a positive integer.
  • the N reserved positions of the HARQ-ACK codebook may correspond to the positions of the N SPS configuration corresponding HARQ-ACK information.
  • N is predefined, configured by a network device, or determined by the UE.
  • N may be determined according to the maximum number of SPS configurations that can be configured for the UE by the network device.
  • N can be determined according to the number of SPS configurations that the network device has configured for the UE.
  • N can be determined according to the capabilities of the UE, and can be determined according to the maximum configurable number supported by a UE.
  • the N reserved positions may be N positions from the start position and backward or N positions from the end position in the HARQ-ACK codebook.
  • the positions of the HARQ-ACK information corresponding to the HARQ process in the HARQ-ACK codebook are located in N positions The position after the position.
  • the position of the HARQ-ACK information corresponding to the HARQ process in the HARQ-ACK codebook is located at the position before the N positions .
  • the number of bits corresponding to the HARQ-ACK for releasing one SPS is M, and N may be a multiple of M.
  • the number of bits M corresponding to HARQ-ACK for releasing one SPS is the number of HARQ-ACK bits for one SPS + the number of bits for feeding back NDI.
  • M can be specified by the protocol or configured by the network device.
  • the first reserved position is determined according to the one SPS configuration.
  • the first reserved position is the configuration index corresponding to the SPS configuration from the N reserved positions in the HARQ-ACK codebook according to the configuration index of the SPS configuration.
  • the location is ok.
  • the first reserved position is determined according to the third SPS configuration, and the third SPS configuration is one SPS configuration among the multiple SPS configurations.
  • the third SPS configuration is the SPS configuration with the largest configuration index value or the SPS configuration with the smallest configuration index value among the multiple SPS configurations.
  • the first reserved position may be the SPS configuration with the largest configuration index value among the configuration indexes of the multiple SPS configurations, from HARQ -Determined by the position corresponding to the SPS configuration with the largest configuration index value among the N reserved positions of the ACK codebook; the first reserved position may also be the SPS with the smallest configuration index value among the configuration indexes according to the multiple SPS configurations
  • the configuration is determined from the position corresponding to the SPS configuration with the smallest configuration index value among the N reserved positions of the HARQ-ACK codebook.
  • the first reserved position may be configured for the network device
  • the first reserved position may be one of the N reserved positions configured by the network device for the UE through RRC.
  • a position (for example, 1 bit) is reserved in the HARQ-ACK codebook for feeding back the HARQ-ACK for releasing the SPS (that is, the feedback information corresponding to the DCI for releasing the SPS).
  • the HARQ-ACK information for releasing the SPS is located at the end position of the HARQ-ACK codebook, that is, located after the HARQ-ACK information corresponding to all the HARQ processes included.
  • the UE detects the DCI for releasing the SPS, and may determine the end position of the HARQ-ACK codebook as the HARQ-ACK information for releasing the SPS is located at the end position of the HARQ-ACK codebook.
  • N positions are reserved in the HARQ-ACK codebook for feeding back the HARQ-ACK for releasing the SPS
  • N is the number of SPS configurations configured by the network device for the UE.
  • the HARQ-ACK information for releasing the SPS is located at the end position of the HARQ-ACK codebook, that is, after the HARQ-ACK information corresponding to all the included HARQ processes.
  • the UE detects that the DCI 1 of the SPS is released, and the DCI 1 will release multiple activated SPS configurations, which are SPS configuration 1 and configuration 2, respectively.
  • the UE can be in a predefined position in the HARQ-ACK codebook, the position configured by the network device, the position corresponding to the process number, or the first reservation determined from the HARQ-ACK codebook Location, which transmits feedback information for DCI, that is, the UE can determine the position of the HARQ-ACK information for DCI in the HARQ-ACK codebook according to the above-mentioned multiple methods, so that the UE can send feedback information to the network device.
  • the HARQ-ACK codebook can be constructed correctly, so that based on the HARQ-ACK codebook, the UE can correctly feed back the HARQ-ACK information for the DCI.
  • FIG. 9 shows a possible structural schematic diagram of the feedback device involved in the embodiment of the present invention.
  • the feedback device 900 provided by the embodiment of the present invention may include: a feedback module 901; a feedback module 901 for feeding back a HARQ-ACK codebook, the HARQ-ACK codebook includes DCI feedback information, and the feedback
  • the position of the information in the HARQ-ACK codebook is any one of the following: a predefined position, a position of the network configuration, a position corresponding to the process number, and the first predetermined position determined from the reserved position of the HARQ-ACK codebook. Reserved location; wherein, the above process number is determined according to the time domain information corresponding to the above DCI, or configured for the network device.
  • the process number is determined according to the time domain information corresponding to the DCI; if the DCI instructs to release an SPS configuration, the process number is determined according to the time domain information corresponding to the DCI and an SPS configuration Or, if the DCI indicates the release of multiple SPS configurations, the process number is determined according to the time domain information indicated by the DCI and the first SPS configuration, and the first SPS configuration is one of the multiple SPS configurations that the DCI indicates to release, or An SPS configuration configured for the feedback apparatus 900 for the network device; the above-mentioned DCI instructs to release the SPS configuration.
  • the time domain information corresponding to the above DCI is determined according to at least one of the following: the time domain unit where the DCI is located; the time domain offset indicated by the DCI; the SLIV indicated by the DCI; the second SPS The SLIV corresponding to the configured downlink shared channel; the time domain position of the next closest downlink shared channel configured by the second SPS; where the second SPS configuration is indicated by the DCI or corresponds to the DCI.
  • the time domain offset indicated by the DCI or the SLIV indicated by the DCI is determined according to the TDRA information corresponding to the DCI.
  • the first SPS configuration is the SPS configuration with the largest configuration index value or the SPS configuration with the smallest configuration index value among the multiple SPS configurations that the DCI indicates to release or the SPS configuration configured by the network device for the feedback device 900 .
  • the first reserved position is determined according to the one SPS configuration indicated by the DCI to release; or, if the DCI indicates the release of multiple SPS configurations, the first reservation is The position is determined according to the third SPS configuration, and the third SPS configuration is one SPS configuration among the multiple SPS configurations that the DCI indicates to be released.
  • the third SPS configuration is the SPS configuration with the largest configuration index value or the SPS configuration with the smallest configuration index value among the multiple SPS configurations indicated by the DCI to release.
  • the first reserved position is configured by the network device.
  • the reserved positions of the HARQ codebook are N reserved positions, and N is a positive integer.
  • the above-mentioned N reserved positions are N positions from the start position and backward or N positions from the end position and forward in the HARQ-ACK codebook.
  • N is predefined, configured by the network device, or determined by the feedback device 900.
  • the above-mentioned predefined position is the start position or the end position of the HARQ-ACK codebook.
  • the feedback device provided in the embodiment of the present invention can implement each process implemented by the UE in the foregoing method embodiment. To avoid repetition, the specific description will not be repeated here.
  • the embodiment of the present invention provides a feedback device.
  • the feedback device can be in a predefined position in the HARQ-ACK codebook, a position configured by a network device, a position corresponding to a process number, or a first determined position from the HARQ-ACK codebook.
  • Reserve a position to transmit feedback information for DCI that is, the feedback device can determine the position in the HARQ-ACK codebook for the HARQ-ACK information for the DCI configured to release the SPS according to the above-mentioned multiple methods, so that the feedback device When sending feedback information to the network device, the HARQ-ACK codebook can be correctly constructed, so that based on the HARQ-ACK codebook, the feedback device can correctly feed back the HARQ-ACK information for the DCI.
  • the UE 100 includes but is not limited to: a radio frequency unit 101, a network module 102, an audio output unit 103, an input unit 104, a sensor 105, a display unit 106, and user input Unit 107, interface unit 108, memory 109, processor 110, power supply 111 and other components.
  • the UE structure shown in FIG. 10 does not constitute a limitation on the UE, and the UE may include more or less components than shown in the figure, or combine certain components, or arrange different components.
  • the UE includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palmtop computer, a vehicle-mounted electronic device, a wearable device, and a pedometer.
  • the radio frequency unit 101 is used to feed back the HARQ-ACK codebook, the HARQ-ACK codebook includes DCI feedback information, and the position of the feedback information in the HARQ-ACK codebook is any one of the following: predefined The location, the location of the network device configuration, the location corresponding to the process number, and the first reserved location determined from the reserved location of the HARQ-ACK codebook; wherein the process number is determined according to the time domain information corresponding to the DCI , Or configured for network equipment.
  • the embodiment of the present invention provides a UE.
  • the UE can be in a predefined position in the HARQ-ACK codebook, a position configured by a network device, a position corresponding to a process number, or a first reservation determined from the HARQ-ACK codebook Location, transmission of feedback information for DCI, that is, the UE can determine the position in the HARQ-ACK codebook for the HARQ-ACK information for the DCI configured to release the SPS according to the above-mentioned multiple methods, so that the UE can communicate to the network equipment
  • the HARQ-ACK codebook can be correctly constructed, so that based on the HARQ-ACK codebook, the UE can correctly feed back the HARQ-ACK information for the DCI.
  • the radio frequency unit 101 can be used for receiving and sending signals in the process of sending and receiving information or talking. Specifically, the downlink data from the base station is received and processed by the processor 110; in addition, Uplink data is sent to the base station.
  • the radio frequency unit 101 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.
  • the radio frequency unit 101 can also communicate with the network and other devices through a wireless communication system.
  • the UE provides users with wireless broadband Internet access through the network module 102, such as helping users to send and receive emails, browse web pages, and access streaming media.
  • the audio output unit 103 can convert the audio data received by the radio frequency unit 101 or the network module 102 or stored in the memory 109 into an audio signal and output it as sound. Moreover, the audio output unit 103 may also provide audio output related to a specific function performed by the UE 100 (for example, call signal reception sound, message reception sound, etc.).
  • the audio output unit 103 includes a speaker, a buzzer, a receiver, and the like.
  • the input unit 104 is used to receive audio or video signals.
  • the input unit 104 may include a graphics processing unit (GPU) 1041 and a microphone 1042, and the graphics processor 1041 is configured to monitor images of still pictures or videos obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. Data is processed.
  • the processed image frame can be displayed on the display unit 106.
  • the image frame processed by the graphics processor 1041 may be stored in the memory 109 (or other storage medium) or sent via the radio frequency unit 101 or the network module 102.
  • the microphone 1042 can receive sound, and can process such sound into audio data.
  • the processed audio data can be converted into a format that can be sent to a mobile communication base station via the radio frequency unit 101 for output in the case of a telephone call mode.
  • the UE 100 also includes at least one sensor 105, such as a light sensor, a motion sensor, and other sensors.
  • the light sensor includes an ambient light sensor and a proximity sensor.
  • the ambient light sensor can adjust the brightness of the display panel 1061 according to the brightness of the ambient light.
  • the proximity sensor can turn off the display panel 1061 and/or when the UE 100 moves to the ear. Or backlight.
  • the accelerometer sensor can detect the magnitude of acceleration in various directions (usually three-axis), and can detect the magnitude and direction of gravity when stationary, and can be used to identify UE posture (such as horizontal and vertical screen switching, related games, Magnetometer posture calibration), vibration recognition related functions (such as pedometer, percussion), etc.; sensor 105 can also include fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, infrared Sensors, etc., will not be repeated here.
  • the display unit 106 is used to display information input by the user or information provided to the user.
  • the display unit 106 may include a display panel 1061, and the display panel 1061 may be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), etc.
  • LCD liquid crystal display
  • OLED organic light-emitting diode
  • the user input unit 107 may be used to receive inputted numeric or character information, and generate key signal input related to user settings and function control of the UE.
  • the user input unit 107 includes a touch panel 1071 and other input devices 1072.
  • the touch panel 1071 also called a touch screen, can collect the user's touch operations on or near it (for example, the user uses any suitable objects or accessories such as fingers, stylus, etc.) on the touch panel 1071 or near the touch panel 1071. operate).
  • the touch panel 1071 may include two parts: a touch detection device and a touch controller.
  • the touch detection device detects the user's touch position, detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts it into contact coordinates, and then sends it To the processor 110, the command sent by the processor 110 is received and executed.
  • the touch panel 1071 can be implemented in multiple types such as resistive, capacitive, infrared, and surface acoustic wave.
  • the user input unit 107 may also include other input devices 1072.
  • other input devices 1072 may include, but are not limited to, a physical keyboard, function keys (such as volume control buttons, switch buttons, etc.), trackball, mouse, and joystick, which will not be repeated here.
  • the touch panel 1071 can be overlaid on the display panel 1061.
  • the touch panel 1071 detects a touch operation on or near it, it transmits it to the processor 110 to determine the type of the touch event, and then the processor 110 determines the type of touch event according to the touch.
  • the type of event provides corresponding visual output on the display panel 1061.
  • the touch panel 1071 and the display panel 1061 are used as two independent components to implement the input and output functions of the UE, in some embodiments, the touch panel 1071 and the display panel 1061 can be integrated. Realize the input and output functions of the UE, which are not specifically limited here.
  • the interface unit 108 is an interface for connecting an external device with the UE 100.
  • the external device may include a wired or wireless headset port, an external power source (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device with an identification module, audio input/output (I/O) port, video I/O port, headphone port, etc.
  • the interface unit 108 may be used to receive input from an external device (for example, data information, power, etc.) and transmit the received input to one or more elements in the UE 100 or may be used to communicate between the UE 100 and the external device. Transfer data between.
  • the memory 109 can be used to store software programs and various data.
  • the memory 109 may mainly include a program storage area and a data storage area.
  • the program storage area may store an operating system, an application program required by at least one function (such as a sound playback function, an image playback function, etc.), etc.; Data created by the use of mobile phones (such as audio data, phone book, etc.), etc.
  • the memory 109 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other volatile solid-state storage devices.
  • the processor 110 is the control center of the UE. It uses various interfaces and lines to connect various parts of the entire UE. Various functions of the UE and processing data, so as to monitor the UE as a whole.
  • the processor 110 may include one or more processing units; preferably, the processor 110 may integrate an application processor and a modem processor, where the application processor mainly processes the operating system, user interface, application programs, etc., and the modem The processor mainly deals with wireless communication. It can be understood that the foregoing modem processor may not be integrated into the processor 110.
  • the UE 100 may also include a power source 111 (such as a battery) for supplying power to various components.
  • a power source 111 such as a battery
  • the power source 111 may be logically connected to the processor 110 through a power management system, so as to manage charging, discharging, and power consumption management through the power management system. Function.
  • the UE 100 includes some functional modules that are not shown, which will not be repeated here.
  • an embodiment of the present invention further provides a UE.
  • the UE includes a processor 110, a memory 109, a computer program stored in the memory 109 and capable of running on the processor 110, and the computer program is executed by the processor 110.
  • the processor 110 includes a processor 110, a memory 109, a computer program stored in the memory 109 and capable of running on the processor 110, and the computer program is executed by the processor 110.
  • Each process of the foregoing feedback method embodiment is realized during execution, and the same technical effect can be achieved. In order to avoid repetition, details are not repeated here.
  • the embodiment of the present invention also provides a computer-readable storage medium having a computer program stored on the computer-readable storage medium, and when the computer program is executed by the processor 110 as shown in FIG. 10, each process of the foregoing method embodiment is implemented, And can achieve the same technical effect, in order to avoid repetition, I will not repeat them here.
  • the computer-readable storage medium such as read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk, or optical disk, etc.
  • the technical solution of this application essentially or the part that contributes to the existing technology can be embodied in the form of a software product, and the computer software product is stored in a storage medium (such as ROM/RAM, magnetic disk, The optical disc) includes several instructions to make a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) execute the methods described in the various embodiments of the present application.
  • a terminal which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Sont divulgués ici un procédé et un dispositif de rétroaction. Le procédé consiste à : renvoyer un livre de codes d'accusé de réception de demande de répétition automatique hybride (HARQ-ACK), le livre de codes HARQ-ACK comprenant des informations de rétroaction d'informations de commande de liaison descendante (DCI) ; la position des informations de rétroaction dans le livre de codes HARQ-ACK est l'une quelconque des positions suivantes : une position prédéfinie, une position configurée par un dispositif de réseau, une position correspondant à un numéro de traitement, et une première position réservée déterminée à partir de positions réservées du livre de codes HARQ-ACK ; le numéro de traitement est déterminé en fonction d'informations de domaine temporel correspondant aux DCI, ou configuré par le dispositif de réseau ; et les DCI indiquent la libération d'une configuration de planification semi-persistante (SPS).
PCT/CN2021/083387 2020-03-31 2021-03-26 Procédé et dispositif de rétroaction WO2021197236A1 (fr)

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