WO2019109687A1 - Procédé de transmission d'ack/nack, et appareil correspondant - Google Patents

Procédé de transmission d'ack/nack, et appareil correspondant Download PDF

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Publication number
WO2019109687A1
WO2019109687A1 PCT/CN2018/104019 CN2018104019W WO2019109687A1 WO 2019109687 A1 WO2019109687 A1 WO 2019109687A1 CN 2018104019 W CN2018104019 W CN 2018104019W WO 2019109687 A1 WO2019109687 A1 WO 2019109687A1
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Prior art keywords
feedback
time slot
ack
nack
slots
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PCT/CN2018/104019
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English (en)
Chinese (zh)
Inventor
司倩倩
高雪娟
托尼
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电信科学技术研究院有限公司
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Publication of WO2019109687A1 publication Critical patent/WO2019109687A1/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
    • 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

Definitions

  • the present application relates to the field of field communication technologies, and in particular, to an ACK/NACK transmission method and corresponding device.
  • 5G NR 5 Generation New RAT, 5G New Air Port
  • a PUSCH Physical Uplink Shared Channel
  • DCI Downlink Control Information
  • DAI Downlink Assignment Index
  • the PUSCH controlled by the DCI may be referred to as an unindexed PUSCH, such as grant free PUSCH (grant free PUSCH), SPS PUSCH (Semi-persistent Scheduling PUSCH), and the like.
  • the PDSCH Physical Downlink Shared Channel
  • the PDSCH Physical Downlink Shared Channel
  • the base station schedules the transmission of the HARQ-ACK (Hybrid Automatic Repeat Request-Acknowledgement) and the PUSCH using the rate matching method. If the shared channel is transmitted and it corresponds to a HARQ-ACK feedback of more than 2 bits, and the HARQ-ACK feedback and the unindexed PUSCH transmission occur at the same time, if the UE (User Equipment) does not receive any PDSCH transmission, then The UE transmits only the unindexed PUSCH. At this time, the base station does not know that the UE does not receive any PDSCH transmission, and still detects the HARQ-ACK feedback and the unindexed PUSCH according to the rate matching manner, resulting in a reception error on the base station side.
  • HARQ-ACK Hybrid Automatic Repeat Request-Acknowledgement
  • An embodiment of the present application provides an ACK/NACK transmission method and a corresponding device, which are used to solve the technical problem that a base station in a 5G detects a HARQ-ACK feedback and an unindexed PUSCH according to a rate matching manner.
  • an ACK/NACK transmission method including:
  • the ACK/NACK transmitted in the unindexed PUSCH uplink time slot is required according to the fixed timing relationship, The preset rule is delayed to other uplink time slot transmissions in the radio frame;
  • the unindexed PUSCH is a PUSCH that is not controlled by the downlink control information DCI, or a PUSCH that is controlled by a DCI that does not include a downlink allocation index DAI; and the other uplink time slots are the non-indexed in the radio frame. Uplink time slot outside the PUSCH uplink time slot.
  • an ACK/NACK transmitted in the unindexed PUSCH uplink time slot is required according to the fixed timing relationship, and is delayed to other uplink time slot transmissions in the radio frame by a preset rule.
  • a time slot other than the unindexed PUSCH uplink time slot is a feedback time slot that can be used for transmitting ACK/NACK;
  • delaying the ACK/NACK to be delayed to the feedback time slot transmission by using the preset rule includes:
  • the time slot is an uplink time slot determined according to the fixed timing relationship.
  • delaying the ACK/NACK to be delayed to the feedback time slot transmission by using the preset rule includes:
  • the number of downlink time slots that need to be fed back in each time slot is respectively obtained to obtain a set allocation quantity of each time slot in the feedback time slot;
  • each time slot in the feedback time slot has a minimum time interval of the original feedback time slot corresponding to the ACK/NACK to be delayed, wherein the original feedback time slot is an uplink determined according to the fixed timing relationship. Time slot.
  • the ACK/NACK to be delayed is delayed to the feedback time slot transmission by the preset rule, including:
  • a feedback codebook size of any one of the feedback time slots as a codebook size of any one of the feedback time slots before delay and an original feedback of ACK/NACK delayed to any one of the feedback time slots The sum of the codebook sizes of the slots.
  • the ACK/NACK to be delayed is delayed to the feedback time slot transmission by the preset rule, including:
  • the total downlink allocation index total DAI in the DCI indicates the number of downlink time slots in the feedback window that need to be fed back, according to any one of the feedback time slots corresponding to the delayed ACK/NACK delay
  • the total DAI included in any DCI received in the feedback window determines the size of the feedback codebook of any one of the time slots, wherein the feedback window includes all downlink time slots that need to be fed back in the same uplink time slot;
  • the total DAI in the DCI indicates the number of downlink time slots that need to be fed back by the base station in the feedback window when the downlink time slot of the DCI is downlink, the corresponding ACK/NACK delay is required according to the delay.
  • the total DAI included in a DCI received in the feedback window of any time slot in the feedback time slot is determined, and the feedback codebook size of the any time slot is determined.
  • the ACK/NACK to be delayed is delayed to the feedback time slot transmission by the preset rule, including:
  • the physical uplink control channel PUCCH of the ACK/NACK is used to feed back the resource location to transmit the ACK/NACK to be transmitted in the any slot in the PUCCH feedback resource location, where the feedback window includes the need to perform in the same uplink time slot. All downlink time slots fed back.
  • the ACK/NACK to be delayed is delayed to the feedback time slot transmission by the preset rule, including:
  • the feedback window of any one of the feedback slots corresponding to the ACK/NACK delay after the delay is required. Determining an ARI included in any DCI, determining a physical uplink control channel PUCCH feedback resource location occupied by the ACK/NACK to be transmitted in any one of the slots, to transmit the any slot on the PUCCH feedback resource location ACK/NACK to be transmitted, wherein the feedback window includes all downlink time slots that need to be fed back in the same uplink time slot;
  • the feedback window of any one of the feedback time slots corresponding to the delayed ACK/NACK delay is used.
  • the ARI included in the last received DCI determining the location of the PUCCH feedback resource occupied by the ACK/NACK to be transmitted in any one of the slots, to transmit the to-be-transmitted in any of the slots in the PUCCH feedback resource location ACK/NACK.
  • an ACK/NACK transmission method including:
  • the unindexed PUSCH is a PUSCH that is not controlled by the downlink control information DCI, or a PUSCH that is controlled by a DCI that does not include a downlink allocation index DAI; and the other uplink time slots are the non-indexed in the radio frame. Uplink time slot outside the PUSCH uplink time slot.
  • the ACK/in the uplink time slot of the unindexed PUSCH is required to be received according to the fixed timing relationship in other uplink time slots in the radio frame by using a preset rule.
  • NACK including:
  • a time slot other than the unindexed PUSCH uplink time slot is a feedback time slot that can be used for transmitting ACK/NACK;
  • receiving, in the feedback time slot, the ACK/NACK delayed to the feedback time slot transmission by using the preset rule includes:
  • receiving, in the feedback time slot, the ACK/NACK delayed to the feedback time slot transmission by using the preset rule includes:
  • the number of downlink time slots that need to be fed back in each time slot is respectively obtained to obtain a set allocation quantity of each time slot in the feedback time slot;
  • the ACK/NACK that is delayed to be transmitted to the feedback time slot in the feedback time slot by using the preset rule includes:
  • a feedback codebook size of any one of the feedback time slots as a codebook size of any one of the feedback time slots before delay and an original feedback of ACK/NACK delayed to any one of the feedback time slots The sum of the codebook sizes of the slots.
  • the ACK/NACK that is delayed to be transmitted to the feedback time slot in the feedback time slot by using the preset rule includes:
  • the total downlink allocation index total DAI in the DCI indicates the number of downlink time slots in the feedback window that need to be fed back, according to any one of the feedback time slots corresponding to the delayed ACK/NACK delay Determining, by the total DAI included in any DCI in the feedback window, a feedback codebook size of any one of the time slots, wherein the feedback window includes all downlink time slots that need to be fed back in the same uplink time slot;
  • the total DAI in the DCI indicates the number of downlink time slots that need to be fed back by the base station in the feedback window when the downlink time slot of the DCI is downlink, the corresponding ACK/NACK delay is required according to the delay.
  • the total DAI included in one of the last transmitted DCIs in the feedback window of any time slot in the feedback time slot determines the size of the feedback codebook of the any time slot.
  • the ACK/NACK that is delayed to be transmitted to the feedback time slot in the feedback time slot by using the preset rule includes:
  • the physical uplink control channel PUCCH of the /NACK is used to feed back the resource location to receive the ACK/NACK to be received in the any slot in the PUCCH feedback resource location, where the feedback window includes feedback in the same uplink slot. All downstream time slots.
  • the ACK/NACK that is delayed to be transmitted to the feedback time slot in the feedback time slot by using the preset rule includes:
  • the feedback window of any one of the feedback slots corresponding to the ACK/NACK delay after the delay is required.
  • An ARI included in any DCI transmitted determining a physical uplink control channel PUCCH feedback resource location occupied by the ACK/NACK to be received in any one of the slots, to receive the any slot in the PUCCH feedback resource location ACK/NACK to be received, wherein the feedback window includes all downlink time slots that need to be fed back in the same uplink time slot;
  • the feedback window of any one of the feedback time slots corresponding to the delayed ACK/NACK delay is used.
  • the ARI included in the last DCI transmitted determines the PUCCH feedback resource location occupied by the ACK/NACK to be received in any one of the slots, to receive the ACK to be received in the any slot in the PUCCH feedback resource location /NACK.
  • an ACK/NACK transmission device including:
  • a determining module configured to determine, by using a fixed timing relationship, an uplink time slot occupied by an ACK/NACK corresponding to a downlink time slot that needs to be fed back;
  • a transmission module configured to: if an unindexed PUSCH uplink time slot for transmitting an unindexed physical uplink shared channel PUSCH resource is configured in a radio frame, to be transmitted in the unindexed PUSCH uplink time slot according to the fixed timing relationship ACK/NACK, delayed by a preset rule to other uplink time slots in the radio frame;
  • the unindexed PUSCH is a PUSCH that is not controlled by the downlink control information DCI, or a PUSCH that is controlled by a DCI that does not include a downlink allocation index DAI; and the other uplink time slots are the non-indexed in the radio frame. Uplink time slot outside the PUSCH uplink time slot.
  • the transmission module is configured to:
  • a time slot other than the unindexed PUSCH uplink time slot is a feedback time slot that can be used for transmitting ACK/NACK;
  • the transmission module is configured to:
  • the time slot is an uplink time slot determined according to the fixed timing relationship.
  • the transmission module is configured to:
  • the number of downlink time slots that need to be fed back in each time slot is respectively obtained to obtain a set allocation quantity of each time slot in the feedback time slot;
  • each time slot in the feedback time slot has a minimum time interval of the original feedback time slot corresponding to the ACK/NACK to be delayed, wherein the original feedback time slot is an uplink determined according to the fixed timing relationship. Time slot.
  • the transmission module is used to:
  • a feedback codebook size of any one of the feedback time slots as a codebook size of any one of the feedback time slots before delay and an original feedback of ACK/NACK delayed to any one of the feedback time slots The sum of the codebook sizes of the slots.
  • the transmission module is used to:
  • the total downlink allocation index total DAI in the DCI indicates the number of downlink time slots in the feedback window that need to be fed back, according to any one of the feedback time slots corresponding to the delayed ACK/NACK delay
  • the total DAI included in any DCI received in the feedback window determines the size of the feedback codebook of any one of the time slots, wherein the feedback window includes all downlink time slots that need to be fed back in the same uplink time slot;
  • the total DAI in the DCI indicates the number of downlink time slots that need to be fed back by the base station in the feedback window when the downlink time slot of the DCI is downlink, the corresponding ACK/NACK delay is required according to the delay.
  • the total DAI included in a DCI received in the feedback window of any time slot in the feedback time slot is determined, and the feedback codebook size of the any time slot is determined.
  • the transmission module is used to:
  • the physical uplink control channel PUCCH of the ACK/NACK is used to feed back the resource location to transmit the ACK/NACK to be transmitted in the any slot in the PUCCH feedback resource location, where the feedback window includes the need to perform in the same uplink time slot. All downlink time slots fed back.
  • the transmission module is used to:
  • the feedback window of any one of the feedback slots corresponding to the ACK/NACK delay after the delay is required. Determining an ARI included in any DCI, determining a physical uplink control channel PUCCH feedback resource location occupied by the ACK/NACK to be transmitted in any one of the slots, to transmit the any slot on the PUCCH feedback resource location ACK/NACK to be transmitted, wherein the feedback window includes all downlink time slots that need to be fed back in the same uplink time slot;
  • the feedback window of any one of the feedback time slots corresponding to the delayed ACK/NACK delay is used.
  • the ARI included in the last received DCI determining the location of the PUCCH feedback resource occupied by the ACK/NACK to be transmitted in any one of the slots, to transmit the to-be-transmitted in any of the slots in the PUCCH feedback resource location ACK/NACK.
  • an ACK/NACK transmission device including:
  • a determining module configured to determine, according to the uplink and downlink configuration information and the unindexed physical uplink shared channel PUSCH configuration information, that the terminal needs to transmit an ACK/NACK in the unindexed PUSCH uplink time slot according to a fixed timing relationship;
  • a receiving module configured to receive, by using a preset rule, an ACK/NACK that is transmitted in the unindexed PUSCH uplink time slot according to the fixed timing relationship in other uplink time slots in the radio frame;
  • the unindexed PUSCH is a PUSCH that is not controlled by the downlink control information DCI, or a PUSCH that is controlled by a DCI that does not include a downlink allocation index DAI; and the other uplink time slots are the non-indexed in the radio frame. Uplink time slot outside the PUSCH uplink time slot.
  • the receiving module is configured to:
  • a time slot other than the unindexed PUSCH uplink time slot is a feedback time slot that can be used for transmitting ACK/NACK;
  • the receiving module is configured to:
  • the receiving module is configured to:
  • the number of downlink time slots that need to be fed back in each time slot is respectively obtained to obtain a set allocation quantity of each time slot in the feedback time slot;
  • the receiving module is configured to:
  • a feedback codebook size of any one of the feedback time slots as a codebook size of any one of the feedback time slots before delay and an original feedback of ACK/NACK delayed to any one of the feedback time slots The sum of the codebook sizes of the slots.
  • the receiving module is configured to:
  • the total downlink allocation index total DAI in the DCI indicates the number of downlink time slots in the feedback window that need to be fed back, according to any one of the feedback time slots corresponding to the delayed ACK/NACK delay Determining, by the total DAI included in any DCI in the feedback window, a feedback codebook size of any one of the time slots, wherein the feedback window includes all downlink time slots that need to be fed back in the same uplink time slot;
  • the total DAI in the DCI indicates the number of downlink time slots that need to be fed back by the base station in the feedback window when the downlink time slot of the DCI is downlink, the corresponding ACK/NACK delay is required according to the delay.
  • the total DAI included in one of the last transmitted DCIs in the feedback window of any time slot in the feedback time slot determines the size of the feedback codebook of the any time slot.
  • the receiving module is configured to:
  • the physical uplink control channel PUCCH of the /NACK is used to feed back the resource location to receive the ACK/NACK to be received in the any slot in the PUCCH feedback resource location, where the feedback window includes feedback in the same uplink slot. All downstream time slots.
  • the receiving module is configured to:
  • the feedback window of any one of the feedback time slots corresponding to the delayed ACK/NACK delay is used.
  • the feedback window of any one of the feedback time slots corresponding to the delayed ACK/NACK delay is used.
  • the ARI included in the last DCI transmitted determines the PUCCH feedback resource location occupied by the ACK/NACK to be received in any one of the slots, to receive the ACK to be received in the any slot in the PUCCH feedback resource location /NACK.
  • an ACK/NACK transmission device where the device includes:
  • At least one processor and
  • a memory coupled to the at least one processor
  • the memory stores instructions executable by the at least one processor, the at least one processor performing the method of the first aspect and/or the second aspect by executing the instructions stored by the memory.
  • a computer readable storage medium comprising:
  • the computer readable storage medium stores computer instructions that, when executed on a computer, cause the computer to perform the method of the first aspect and/or the second aspect.
  • the embodiment of the present application provides a new ACK/NACK transmission method, where a fixed time series relationship is used to determine an uplink time slot occupied by an ACK/NACK corresponding to a downlink time slot that needs to be fed back, and if a wireless frame is configured for transmission
  • the unindexed PUSCH uplink time slot of the unindexed physical uplink shared channel PUSCH resource, the ACK/NACK transmitted in the unindexed PUSCH uplink time slot is required according to the fixed timing relationship, and is delayed into the wireless frame by a preset rule.
  • Other upstream time slot transmissions are examples of time slot.
  • FIG. 1 is a schematic flowchart of an ACK/NACK transmission method according to an embodiment of the present application
  • FIG. 2 is a schematic diagram of delay feedback of an ACK/NACK transmission method in an embodiment of the present application
  • FIG. 3 is a schematic diagram of delay feedback of another ACK/NACK transmission method according to an embodiment of the present application.
  • FIG. 4 is a schematic flowchart of another ACK/NACK transmission method according to an embodiment of the present application.
  • FIG. 5 is a structural block diagram of an ACK/NACK transmission device according to an embodiment of the present application.
  • FIG. 6 is a structural block diagram of another ACK/NACK transmission device according to an embodiment of the present application.
  • LTE Long Term Evolution
  • a UE needs to transmit uplink data on a PUSCH of a certain subframe and simultaneously needs to send uplink control information (such as ACK/NACK, CQI, PMI, RI)
  • uplink control information such as ACK/NACK, CQI, PMI, RI
  • the UE does not support the simultaneous transmission of the PUCCH (Physical Uplink Control CHannel) and the PUSCH, the uplink control information will be multiplexed with the data and transmitted together on the PUSCH.
  • PUCCH Physical Uplink Control CHannel
  • the eNodeB (Evolved Node B) can know when to receive from The ACK/NACK of the UE is therefore able to correctly decode the ACK/NACK and data.
  • the eNodeB sends the PDCCH for downlink scheduling, and the UE does not receive the ACK/NACK, the eNodeB expects to receive the ACK/NACK, resulting in a mismatch between the UE coding and the eNodeB decoding mode.
  • HARQ-ACK is always mapped on the PUSCH by puncturing, so that the unpunctured bit information is not affected by the presence or absence of ACK/NACK.
  • HARQ-ACK feedback The number of bits may be larger. If the HARQ-ACK is still transmitted by puncturing the PUSCH, a lot of information of the PUSCH is punctured by the HARQ-ACK, which has a great influence on the transmission performance of the PUSCH, so the 5G NR can
  • the HARQ-ACK for 1-2 bits is transmitted in a PUSCH puncturing manner, and is transmitted in a manner of HARQ-ACK usage greater than 2 bits and PUSCH rate matching.
  • a DAI Downlink Assignment Index
  • a PUSCH that is not controlled by DCI and a PUSCH that is controlled by DCI that does not include DAI are also supported.
  • This type of PUSCH may be referred to as an unindexed PUSCH, such as grant free PUSCH, SPS PUSCH, and the like.
  • the base station does not send any scheduling information to the grant-free PUSCH, and only configures the location and some configuration information of the grant-free PUSCH transmission by the UE through RRC signaling.
  • the UE performs grant-free PUSCH transmission according to the configuration information in a pre-configured location of the base station.
  • the downlink data transmission and the corresponding ACK/NACK may be a fixed timing relationship or a dynamically determined timing relationship. If it is a dynamically determined timing relationship, the base station may indicate the downlink data transmission corresponding ACK/NACK through the DCI.
  • the feedback position if it is a fixed timing relationship, the feedback position of the ACK/NACK corresponding to the downlink data transmission is predefined in the standard.
  • the base station does not send any scheduling information to the grant-free PUSCH. If a fixed timing relationship is used and the base station schedules PDSCH transmission and it corresponds to more than 2 bits of HARQ-ACK feedback, and the HARQ-ACK feedback and grant free PUSCH transmission occur at the same time, if the UE does not receive any PDSCH transmission , only the grant free PUSCH is transmitted. At this time, the base station does not know that the UE does not receive any PDSCH transmission, and still detects the HARQ-ACK feedback and the grant free PUSCH according to the rate matching manner, resulting in a base station side receiving error.
  • the core idea of the embodiment of the present application is: when a fixed timing relationship is used between a downlink data transmission and a corresponding ACK/NACK transmission, if there is an unindexed PUSCH transmission in the system, delaying HARQ in the unindexed PUSCH possible transmission slot - ACK is fed back to other upstream time slots that can transmit HARQ-ACK feedback.
  • an embodiment of the present application provides an ACK/NACK transmission method, where the method may be used for performing ACK/NACK transmission between devices, for example, the UE may perform ACK/NACK transmission to a base station.
  • the UE may be a personal computer (PC), a notebook, a mobile phone, an Internet of Things device, a wearable device, etc., and is not limited to the specific type of the UE.
  • Step 101 Determine, by using a fixed timing relationship, an uplink time slot occupied by an ACK/NACK corresponding to a downlink time slot that needs to be fed back.
  • Step 102 If an unindexed PUSCH uplink time slot for transmitting the unindexed physical uplink shared channel PUSCH resource is configured in the radio frame, the ACK/NACK transmitted in the unindexed PUSCH uplink time slot is required according to a fixed timing relationship. The rule is delayed to other uplink time slot transmissions in the radio frame; wherein the unindexed PUSCH is a PUSCH that is not controlled by the downlink control information DCI, or a PUSCH controlled by the DCI that does not include the downlink allocation index DAI; other uplink time slots are An uplink time slot other than the unindexed PUSCH uplink time slot in the radio frame.
  • time slot described in the embodiment of the present application may be a slot or a mini-slot.
  • step 102 the ACK/NACK transmitted in the unindexed PUSCH uplink time slot is required according to a fixed timing relationship, and the delay to the other uplink time slot transmission in the radio frame by the preset rule may be divided into three.
  • the parts are respectively determining a feedback time slot portion, determining a delay position portion, and determining a feedback codebook size and a feedback resource portion. The following three examples are illustrated:
  • Part 1 Determining the feedback time slot
  • the base station may send uplink and downlink configuration information and unindexed PUSCH configuration information to the UE.
  • the uplink and downlink configuration information defines a downlink time slot and an uplink time slot in the radio frame
  • the unindexed PUSCH configuration information defines an unindexed PUSCH uplink time slot in the radio frame for transmitting the unindexed PUSCH.
  • the UE may determine all uplink time slots in the radio frame according to the uplink and downlink configuration information received in advance, and determine an unindexed PUSCH uplink time slot for transmitting the unindexed PUSCH in the radio frame according to the previously received unindexed PUSCH configuration information. Furthermore, it can be determined that the time slots other than the unindexed PUSCH uplink time slot in all uplink time slots in the radio frame are feedback time slots available for transmitting ACK/NACK.
  • the UE may delay the ACK/NACK to be delayed to the feedback slot transmission by a preset rule, and the base station may receive the delayed ACK/NACK after the delay in the feedback slot.
  • the ACK/NACK to be delayed is an ACK/NACK that needs to be transmitted in the unindexed PUSCH uplink time slot according to a fixed timing relationship.
  • the specific implementation manner of delaying the ACK/NACK to be delayed to the feedback time slot by using a preset rule includes two types:
  • the ACK/NACK to be delayed is all delayed until the last feedback slot in the feedback time slot with the smallest original transmission slot time interval of the ACK/NACK to be delayed.
  • the original feedback time slot is an uplink time slot determined according to a fixed timing relationship, that is, an uplink time slot corresponding to the ACK/NACK to be delayed before the delay.
  • the UE may transmit all ACK/NACKs that need to be delayed in the most recent feedback time slot, and the base station may receive all ACK/NACKs that need to be delayed on the most recent feedback time slot.
  • the time slots in the feedback slot are determined by equally allocating the downlink slots that need to be fed back in the radio frame.
  • the number of downlink time slots that need to be fed back separately is obtained to obtain the set allocation number of each time slot in the feedback time slot.
  • the ACK/NACK to be delayed is sequentially delayed to be transmitted in the feedback time slot, so that the number of downlink time slots corresponding to each time slot in the feedback time slot that need to be fed back does not exceed its own set allocation amount, and the feedback time slot
  • the time slot of the original feedback slot corresponding to the ACK/NACK to be delayed in each slot is the smallest.
  • the feedback time slot with the smallest time interval of the original feedback time slot of the ACK/NACK to be delayed is the feedback time slot corresponding to any ACK/NACK delay that needs to be delayed.
  • any ACK/NACK that needs to be delayed it may be determined whether the number of downlink time slots that need to be fed back in the latest feedback time slot in the radio frame exceeds the feedback slot of the set number of allocations. If not exceeded, delay any ACK/NACK that needs to be delayed to the latest feedback time slot. If it is exceeded, determine whether the number of downlink time slots that need to be fed back in the next feedback time slot after the most recent feedback time slot is If the feedback time slot exceeding the set number of its own allocation is not exceeded, then any ACK/NACK that needs to be delayed is delayed to the next feedback time slot. If it is exceeded, the subsequent feedback time slot is continuously determined.
  • the feedback time slot that knows that the number of downlink time slots that need to be fed back does not exceed its own set allocation number is the corresponding feedback time slot after any ACK/NACK delay that needs to be delayed.
  • the UE may respectively transmit ACK/NACKs that need to be delayed in corresponding feedback slots after each ACK/NACK delay that needs to be delayed; and the base station transmits corresponding feedback slots after each delayed ACK/NACK delay.
  • Each ACK/NACK that needs to be delayed receives each ACK/NACK that needs to be delayed.
  • the base station can receive, in each time slot in each feedback slot, each ACK/NACK in the ACK/NACK that needs to be delayed, the corresponding original feedback slot and the feedback slot.
  • Part III Determining the feedback codebook size and feedback resources
  • the static codebook size and the dynamic codebook size are used:
  • the feedback codebook size of any feedback slot in the corresponding feedback slot after the delayed ACK/NACK delay is determined by two parts, and part of the codebook of any feedback slot before the delay
  • the size and the other part are the codebook size of the original feedback time slot delayed to the ACK/NACK of any of the feedback slots.
  • the sum of the size of the two parts of the codebook is the feedback code of the corresponding feedback slot corresponding to the delay. This size.
  • the feedback codebook size of the corresponding feedback slot after the ACK/NACK delay to be delayed may be determined according to the total DAI (Total Downlink Allocation Index) indicated in the DCI.
  • the total DAI in the DCI indicates the number of downlink time slots in the feedback window that need to be fed back, according to the feedback window received in any feedback slot of the corresponding feedback time slot after the delayed ACK/NACK delay
  • the total DAI contained in any DCI determines the size of the feedback codebook for any of the slots.
  • the feedback window includes all downlink time slots that need to be fed back in the same uplink time slot.
  • the total DAI indicates the number of all downlink PDSCH slots/mini-slots in the feedback window
  • the total DAI includes all PDSCH slots that should be scheduled by the base station in the new feedback window corresponding to the post-delay feedback slot.
  • the number of mini-slots the UE assumes that the base station indicates the same total DAI in all downlink DCIs in the new feedback window corresponding to the feedback slot after the delay.
  • the total DAI in the DCI indicates that the number of downlink slots that have been scheduled by the base station to be fed back in the feedback window when the downlink slot of the DCI is downlinked, the corresponding feedback according to the ACK/NACK delay to be delayed.
  • the total DAI included in a DCI received in the feedback window of any time slot in the time slot determines the size of the feedback codebook of the any time slot.
  • the total DAI indicates the number of PDSCH slots/mini-slots that the base station has scheduled when the DCI is downlinked
  • the total DAI included in the last received DCI in the new feedback window corresponding to the delayed feedback slot is determined.
  • the feedback codebook size of the feedback slot is determined.
  • the static codebook size and the dynamic codebook size are used:
  • the terminal considers that the ARI indication fields included in all DCIs in the new feedback window corresponding to the feedback position after the delay are the same, and the PUCCH resource indicated by the ARI can carry the new feedback window corresponding to the feedback position after the delay. All feedback in the middle.
  • the feedback resource corresponding to the feedback slot after the ACK/NACK delay to be delayed may be determined according to the ARI indicated in the DCI.
  • the total DAI in the DCI indicates the number of downlink time slots in the feedback window that need to be fed back, according to the feedback window received in any feedback slot of the corresponding feedback time slot after the delayed ACK/NACK delay
  • An ARI included in any DCI determining a physical uplink control channel PUCCH feedback resource location occupied by the ACK/NACK to be transmitted in any one slot, to transmit an ACK/NACK to be transmitted in the any slot in the PUCCH feedback resource location .
  • the UE assumes that the base station indicates the same ARI in all downlink DCIs in the new feedback window corresponding to the feedback position after the delay.
  • the last feedback window of any time slot in the corresponding feedback time slot according to the ACK/NACK delay to be delayed determines the location of the PUCCH feedback resource occupied by the ACK/NACK to be transmitted in any one of the slots, to transmit the ACK/NACK to be transmitted in the any slot in the PUCCH feedback resource location.
  • the unindexed PUSCH is used as the grant-free PUSCH, but it can be understood that part or all of the grant-free PUSCH in the specific embodiment may be replaced with other types of unindexed PUSCH. .
  • the base station does not configure grant-free PUSCH transmission, the corresponding uplink feedback slot is m+5 for the downlink slot m. If the base station configures slot n+5, slot n+6, and slot n+7 as the possible transmission locations of the grant-free PUSCH, the location that the UE can use to transmit the HARQ-ACK feedback is slot n+8 and slot n+9. According to the principle of the shortest delay, the UE delays the HARQ-ACK feedback of slot n, slot n+1 and slot n+2 to slot n+8 for transmission.
  • the base station configures the UE to use single-carrier single-codeword transmission.
  • the delay feedback position slot n+8 corresponds to the new feedback codebook size as the original slot n+5, slot n+6 and slot.
  • the sum of the codebook size corresponding to n+7 and the codebook size corresponding to the original slot n+8, that is, the delay feedback position slot n+8 corresponds to a new feedback codebook size of 4.
  • the base station indicates the same ARI information in the DCI of slot n, slot n+1, slot n+2, and slot n+3, and the terminal may determine the PUCCH feedback resource according to any one of the ARIs.
  • the base station configures the UE to use the dynamic codebook feedback mode. It is assumed that the base station schedules the data transmission in slot n and slot n+3. After the delay, the feedback position slot n+8 corresponds to the new feedback codebook size determined according to the total DAI:
  • the total DAI value in the DCI transmitted by the slot n and the slot n+3 in the present embodiment is 2, and the UE according to the slot n Or the total DAI included in the DCI of the slot n+3 determines that the feedback codebook size of the feedback position slot n+8 is 2 after the delay, and determines the PUCCH feedback resource according to the ARI included in the slot n or slot n+3;
  • the total DAI value in the DCI transmitted by slot n in this embodiment is 1, and the total in the DCI transmitted by slot n+3
  • the DAI value is 2, and the UE determines the feedback codebook size of the post-delay feedback position slot n+8 according to the total DAI included in the DCI of the slot n+3, and determines the PUCCH feedback resource according to the ARI included in the DCI.
  • the base station does not configure grant-free PUSCH transmission, the corresponding uplink feedback slot is m+5 for the downlink slot m. If the base station configures slot n+5, slot n+6, and slot n+7 as the possible transmission locations of the grant-free PUSCH, the location that the UE can use to transmit the HARQ-ACK feedback is slot n+8 and slot n+9.
  • the UE delays the HARQ-ACK feedback of slot n and slot n+1 to slot n+8 for transmission, and delays the HARQ-ACK feedback of slot n+2 to slot n+9. Transfer.
  • the base station configures the UE to use single-carrier single-codeword transmission.
  • the delay feedback position slot n+8 corresponds to the new feedback codebook size corresponding to the original slot n+5 and slot n+6.
  • the codebook size is the sum of the codebook size corresponding to the original slot n+8, that is, the delayed feedback position slot n+8 corresponds to a new feedback codebook size of 3; after the delay, the feedback position slot n+9 corresponds to a new feedback codebook.
  • the size is the sum of the codebook size corresponding to the original slot n+7 and the codebook size corresponding to the original slot n+9, that is, the delay feedback position slot n+9 corresponds to a new feedback codebook size of 2.
  • the base station indicates the same ARI information in the DCI of slot n, slot n+1, and slot n+3, and the terminal may determine the PUCCH feedback resource in slot n+8 according to any one ARI; the base station is in slot n+2 and slot n+ The same ARI information is indicated in the DCI of 4, and the terminal can determine the PUCCH feedback resource in slot n+9 according to any one ARI.
  • N+8 and slot n+9 correspond to the new feedback codebook size determined by total DAI:
  • the total DAI values in the DCIs transmitted in slot n, slot n+1, and slot n+3 in this embodiment are all 3.
  • the UE determines, according to the total DAI included in the DCI of slot n, slot n+1 or slot n+3, that the feedback codebook size of the feedback position slot n+8 is 3, according to slot n, slot n+1 or slot n
  • the ARI included in the DCI of +3 determines the PUCCH feedback resource in slot n+8; the total DAI value in the DCI transmitted by slot n+2 and slot n+4 is 2, and the UE according to slot n+2 or slot n+4
  • the total DAI included in the DCI determines the feedback codebook size of the feedback position slot n+9 after delay is 2, and determines the PUCCH feedback resource in slot n+9 according to the ARI included in the slot n+2 or slot n+4.
  • the total DAI value in the DCI transmitted by slot n in this embodiment is 1, and the total in the DCI transmitted by slot n+1
  • the DAI value is 2, and the total DAI value in the DCI transmitted by slot n+3 is 3, and the UE determines the feedback codebook size of the feedback position slot n+8 after the delay according to the total DAI included in the DCI of slot n+3, and Determine the PUCCH feedback resource in slot n+8 according to the ARI included in the DCI of slot n+3;
  • the total DAI value in the DCI transmitted by slot n+2 is 1, and the total DAI value in the DCI transmitted in slot n+4 is 2.
  • the UE determines, according to the total DAI included in the DCI of the slot n+4, the feedback codebook size of the post-delay feedback position slot n+9 is 2, and determines the PUCCH feedback in the slot n+9 according to the ARI included in the DCI of the slot n+4. Resources.
  • the embodiment of the present application provides an ACK/NACK transmission method, where the method may be used for performing ACK/NACK transmission between devices, for example, the base station may receive an ACK/NACK sent by the UE, and the base station is The UE may be the UE in the first embodiment, and the UE may be the UE in the first embodiment. Specifically, at least the ACK/NACK transmitted by the transmission method in Embodiment 1 can be received by the transmission method in the embodiment of the present application.
  • Step 401 Determine, according to the uplink and downlink configuration information and the unindexed PUSCH configuration information, that the terminal needs to transmit an ACK/NACK in an unindexed PUSCH uplink time slot according to a fixed timing relationship, where the unindexed PUSCH is a PUSCH that is not controlled by the DCI. Or, a PUSCH controlled by a DCI that does not include DAI.
  • Step 402 Receive, in a preset rule, an ACK/NACK that needs to be transmitted in the unindexed PUSCH uplink time slot according to the fixed timing relationship in other uplink time slots in the radio frame, where the The other uplink time slots are uplink time slots in the radio frame except for the unindexed PUSCH uplink time slot.
  • the ACK/NACK that needs to be transmitted in the unindexed PUSCH uplink time slot according to the fixed timing relationship after receiving the delay in the other uplink time slots in the radio frame according to the preset rule includes:
  • the ACK/NACK of the delay to the feedback slot transmission is delayed in the feedback slot by using a preset rule, wherein the ACK/NACK to be delayed is an ACK that needs to be transmitted in the unindexed PUSCH uplink slot according to a fixed timing relationship. NACK.
  • the ACK/NACK of the delay to the feedback slot transmission is delayed in the feedback time slot by using a preset rule, including:
  • the ACK/NACK of the delay to the feedback slot transmission is delayed in the feedback time slot by using a preset rule, including:
  • the downlink time slots that need to be fed back in the radio frame are evenly allocated, and the feedback needs to be respectively determined in each time slot in the feedback time slot.
  • the ACK/NACK of the delay to the feedback time slot transmission is delayed in the feedback time slot by using a preset rule, including:
  • Determining the feedback codebook size of any feedback slot in the feedback slot is the sum of the codebook size of any feedback slot before delay and the codebook size of the original feedback slot delayed to ACK/NACK of any feedback slot .
  • the ACK/NACK of the delay to the feedback time slot transmission is delayed in the feedback time slot by using a preset rule, including:
  • the feedback window is sent according to any time slot in the corresponding feedback time slot after the ACK/NACK delay to be delayed.
  • the total DAI included in any DCI determines the size of the feedback codebook of any time slot, wherein the feedback window includes all downlink time slots that need to be fed back in the same uplink time slot;
  • the total DAI in the DCI indicates the number of downlink time slots that need to be fed back by the base station in the feedback window when the downlink time slot of the DCI is downlink transmission, the corresponding feedback time slot according to the ACK/NACK delay to be delayed
  • the total DAI contained in one of the last transmitted DCIs in the feedback window of any slot in the slot determines the size of the feedback codebook for any slot.
  • the ACK/NACK of the delay to the feedback time slot transmission is delayed in the feedback time slot by using a preset rule, including:
  • the control channel PUCCH feeds back the resource location to receive the ACK/NACK to be received in any time slot at the PUCCH feedback resource location, wherein the feedback window includes all downlink time slots that need to be fed back in the same upstream time slot.
  • the ACK/NACK of the delay to the feedback time slot transmission is delayed in the feedback time slot by using a preset rule, including:
  • the ACK/NACK delay is required to be sent in the feedback window of any slot in the corresponding feedback slot.
  • An ARI included in a DCI determines a physical uplink control channel PUCCH feedback resource location occupied by an ACK/NACK to be received in any time slot to receive an ACK/NACK to be received in any time slot at a PUCCH feedback resource location, wherein, the feedback The window includes all downlink time slots that need to be fed back in the same upstream time slot;
  • An ARI included in a DCI determines a PUCCH feedback resource location occupied by an ACK/NACK to be received in any slot to receive an ACK/NACK to be received in any slot at a PUCCH feedback resource location.
  • an embodiment of the present application provides an ACK/NACK transmission device, where the device may be the UE in Embodiments 1 and 2.
  • the device includes at least a determining module 501 and a transmitting module 502, wherein:
  • a determining module 501 configured to determine, by using a fixed timing relationship, an uplink time slot occupied by an ACK/NACK corresponding to a downlink time slot that needs to be fed back;
  • the transmitting module 502 is configured to: if an unindexed PUSCH uplink time slot for transmitting the unindexed physical uplink shared channel PUSCH resource is configured in the radio frame, the ACK/NACK required to be transmitted in the unindexed PUSCH uplink time slot according to a fixed timing relationship , delaying to other uplink time slot transmissions in the radio frame by a preset rule;
  • the unindexed PUSCH is a PUSCH that is not controlled by the downlink control information DCI, or a PUSCH that is controlled by the DCI that does not include the downlink allocation index DAI; and other uplink time slots are uplinks except for the unindexed PUSCH uplink time slot in the radio frame. Gap.
  • the transmission module 502 is configured to:
  • the ACK/NACK to be delayed is delayed to the feedback slot transmission by a preset rule, wherein the ACK/NACK to be delayed is an ACK/NACK that needs to be transmitted in the unindexed PUSCH uplink slot according to a fixed timing relationship.
  • the transmission module 502 is configured to:
  • the transmission module 502 is configured to:
  • the downlink time slots that need to be fed back in the radio frame are evenly allocated, and the feedback needs to be respectively determined in each time slot in the feedback time slot.
  • the ACK/NACK to be delayed is sequentially transmitted to the feedback time slot for transmission, so that the number of downlink time slots corresponding to each time slot in the feedback time slot that need to be fed back does not exceed its own set allocation amount, and each of the feedback time slots
  • the time slot has a minimum time interval of the original feedback time slot corresponding to the ACK/NACK to be delayed, wherein the original feedback time slot is an uplink time slot determined according to a fixed timing relationship.
  • the transmission module 502 is configured to:
  • Determining the feedback codebook size of any feedback slot in the feedback slot is the sum of the codebook size of any feedback slot before delay and the codebook size of the original feedback slot delayed to ACK/NACK of any feedback slot .
  • the transmission module 502 is configured to:
  • the total downlink allocation index total DAI in the DCI indicates the number of downlink time slots in the feedback window that need to be fed back, receiving in the feedback window of any time slot in the corresponding feedback time slot according to the ACK/NACK delay to be delayed
  • the total DAI included in any DCI to determine the size of the feedback codebook of any time slot, wherein the feedback window includes all downlink time slots that need to be fed back in the same uplink time slot;
  • the total DAI in the DCI indicates the number of downlink time slots that need to be fed back by the base station in the feedback window when the downlink time slot of the DCI is downlink transmission, the corresponding feedback time slot according to the ACK/NACK delay to be delayed
  • the total DAI contained in the last received DCI in the feedback window of any of the slots in the slot is determined by the feedback codebook size of any slot.
  • the transmission module 502 is configured to:
  • the uplink control channel PUCCH feeds back the resource location to transmit the ACK/NACK to be transmitted in any time slot on the PUCCH feedback resource location, wherein the feedback window includes all downlink time slots that need to be fed back in the same uplink time slot.
  • the transmission module 502 is configured to:
  • the total DAI in the DCI indicates the number of downlink time slots in the feedback window that need to be fed back in the feedback window, according to the feedback window received in any feedback slot of the corresponding feedback time slot after the delayed ACK/NACK delay
  • An ARI included in any DCI determining a physical uplink control channel PUCCH feedback resource location occupied by an ACK/NACK to be transmitted in any time slot, to transmit an ACK/NACK to be transmitted in any time slot on a PUCCH feedback resource location, where The feedback window includes all downlink time slots that need to be fed back in the same uplink time slot;
  • the ARI included in one DCI determines the location of the PUCCH feedback resource occupied by the ACK/NACK to be transmitted in any slot to transmit the ACK/NACK to be transmitted in any slot in the PUCCH feedback resource location.
  • an embodiment of the present application provides an ACK/NACK transmission device, where the device may be the base station in Embodiments 1 and 2.
  • the device includes at least a determining module 601 and a receiving module 602, wherein:
  • the determining module 601 is configured to determine, according to the uplink and downlink configuration information and the unindexed physical uplink shared channel PUSCH configuration information, that the terminal needs to transmit the ACK/NACK in the unindexed PUSCH uplink time slot according to the fixed timing relationship;
  • the receiving module 602 is configured to receive, by using a preset rule, other ACK/NACKs that are transmitted in the unindexed PUSCH uplink time slot according to a fixed timing relationship in other uplink time slots in the radio frame.
  • the unindexed PUSCH is a PUSCH that is not controlled by the downlink control information DCI, or a PUSCH that is controlled by the DCI that does not include the downlink allocation index DAI; and other uplink time slots are uplinks except for the unindexed PUSCH uplink time slot in the radio frame. Gap.
  • the receiving module 602 is configured to:
  • the ACK/NACK of the delay to the feedback slot transmission is delayed in the feedback slot by using a preset rule, wherein the ACK/NACK to be delayed is an ACK that needs to be transmitted in the unindexed PUSCH uplink slot according to a fixed timing relationship. NACK.
  • the receiving module 602 is configured to:
  • the receiving module 602 is configured to:
  • the downlink time slots that need to be fed back in the radio frame are evenly allocated, and the feedback needs to be respectively determined in each time slot in the feedback time slot.
  • the receiving module 602 is configured to:
  • Determining the feedback codebook size of any feedback slot in the feedback slot is the sum of the codebook size of any feedback slot before delay and the codebook size of the original feedback slot delayed to ACK/NACK of any feedback slot .
  • the receiving module 602 is configured to:
  • the feedback window is sent according to any time slot in the corresponding feedback time slot after the ACK/NACK delay to be delayed.
  • the total DAI included in any DCI determines the size of the feedback codebook of any time slot, wherein the feedback window includes all downlink time slots that need to be fed back in the same uplink time slot;
  • the total DAI in the DCI indicates the number of downlink time slots that need to be fed back by the base station in the feedback window when the downlink time slot of the DCI is downlink transmission, the corresponding feedback time slot according to the ACK/NACK delay to be delayed
  • the total DAI contained in one of the last transmitted DCIs in the feedback window of any slot in the slot determines the size of the feedback codebook for any slot.
  • the receiving module 602 is configured to:
  • the control channel PUCCH feeds back the resource location to receive the ACK/NACK to be received in any time slot at the PUCCH feedback resource location, wherein the feedback window includes all downlink time slots that need to be fed back in the same upstream time slot.
  • the receiving module 602 is configured to:
  • the ACK/NACK delay is required to be sent in the feedback window of any slot in the corresponding feedback slot.
  • An ARI included in a DCI determines a physical uplink control channel PUCCH feedback resource location occupied by an ACK/NACK to be received in any time slot to receive an ACK/NACK to be received in any time slot at a PUCCH feedback resource location, wherein, the feedback The window includes all downlink time slots that need to be fed back in the same upstream time slot;
  • An ARI included in a DCI determines a PUCCH feedback resource location occupied by an ACK/NACK to be received in any slot to receive an ACK/NACK to be received in any slot at a PUCCH feedback resource location.
  • an embodiment of the present application provides an ACK/NACK transmission device, which may be a UE or a base station as described in Embodiment 1, 2, 3, or 4. Wherein the device comprises:
  • At least one processor and
  • a memory coupled to the at least one processor
  • the memory stores instructions executable by the at least one processor, the at least one processor performing the method as described in the first embodiment and/or the second embodiment by executing the instructions stored in the memory.
  • the at least one processor performs a specific process of the method as described in Embodiment 1 and/or Embodiment 2 by executing the instruction stored in the memory, and may include controlling other ones in the device.
  • a component for example, controls a transceiver in the device for data transceiving.
  • an embodiment of the present application provides a computer readable storage medium, wherein:
  • the computer readable storage medium stores computer instructions that, when executed on a computer, cause the computer to perform the methods as described in the first embodiment and/or the second embodiment.
  • the computer readable storage medium includes: USB (Universal Serial Bus flash drive), mobile hard disk, ROM (Read-Only Memory), RAM (Random Access Memory)
  • USB Universal Serial Bus flash drive
  • ROM Read-Only Memory
  • RAM Random Access Memory
  • the embodiment of the present application provides a new ACK/NACK transmission method, where a fixed time series relationship is used to determine an uplink time slot occupied by an ACK/NACK corresponding to a downlink time slot that needs to be fed back, and if a wireless frame is configured for transmission
  • the unindexed PUSCH uplink time slot of the unindexed physical uplink shared channel PUSCH resource, the ACK/NACK transmitted in the unindexed PUSCH uplink time slot is required according to the fixed timing relationship, and is delayed into the wireless frame by a preset rule.
  • Other upstream time slot transmissions are examples of time slot.
  • a new HARQ feedback timing, a feedback codebook, and a method for determining a feedback resource are provided, which avoids that HARQ-ACK feedback and unindexed PUSCH transmission occur at the same time, thereby improving system transmission performance.
  • the device embodiments described above are merely illustrative, wherein the units/modules described as separate components may or may not be physically separate, and the components displayed as units/modules may or may not be physical units/modules. , can be located in one place, or can be distributed to multiple network units/modules. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the embodiment. Those of ordinary skill in the art can understand and implement without deliberate labor.
  • embodiments of the present application can be provided as a method, system, or computer program product.
  • the present application can take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment in combination of software and hardware.
  • the application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

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Abstract

L'invention concerne un procédé de transmission d'ACK/NACK, et un appareil correspondant. L'invention vise à résoudre le problème technique lié au fait qu'une erreur de réception se produit lorsqu'une station de base détecte une rétroaction HARQ-ACK et un PUSCH sans indice selon une adaptation de débit et en 5G. Le procédé consiste à : utiliser une relation de rythme fixe pour déterminer un intervalle de temps de liaison montante occupé par un ACK/NACK correspondant à un intervalle de temps de liaison descendante devant être renvoyé; et si un intervalle de temps de liaison montante de PUSCH sans indice pour transmettre des ressources de PUSCH sans indice est configuré dans une trame radio, retarder la transmission de l'ACK/NACK, qui doit être transmis dans l'intervalle de temps de liaison montante de PUSCH sans indice d'après la relation de rythme fixe, à d'autres intervalles de temps de liaison montante dans la trame radio selon une règle prédéfinie, le PUSCH sans indice étant un PUSCH qui n'est pas commandé par des DCI ou un PUSCH qui est commandé par des DCI excluant un élément DAI, et les autres intervalles de temps de liaison montante étant des intervalles de temps de liaison montante, autres que l'intervalle de temps de liaison montante de PUSCH sans indice, dans la trame radio.
PCT/CN2018/104019 2017-12-08 2018-09-04 Procédé de transmission d'ack/nack, et appareil correspondant WO2019109687A1 (fr)

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