WO2017028570A1 - Procédé et appareil de renvoi et de réception de message d'accusé de réception - Google Patents

Procédé et appareil de renvoi et de réception de message d'accusé de réception Download PDF

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Publication number
WO2017028570A1
WO2017028570A1 PCT/CN2016/082359 CN2016082359W WO2017028570A1 WO 2017028570 A1 WO2017028570 A1 WO 2017028570A1 CN 2016082359 W CN2016082359 W CN 2016082359W WO 2017028570 A1 WO2017028570 A1 WO 2017028570A1
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WIPO (PCT)
Prior art keywords
data
ack
nack
subframe
scheduling information
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PCT/CN2016/082359
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English (en)
Chinese (zh)
Inventor
薛飞
戴博
梁春丽
赵亚军
杨维维
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中兴通讯股份有限公司
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Publication of WO2017028570A1 publication Critical patent/WO2017028570A1/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
    • H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems

Definitions

  • This document relates to, but is not limited to, the field of communications, and in particular, to a method and device for feeding back and receiving a response message.
  • LTE-A Long Term Evolution Advanced
  • CA Carrier Aggregation
  • CCs carrier carriers
  • 3GPP 3rd Generation Partnership Project
  • LAA License Assisted Access
  • 3GPP Rel-13 3GPP Rel-13.
  • the LAA works by granting carriers and unlicensed carriers through carrier aggregation.
  • the authorized carrier is used as the primary cell to provide basic information for the terminal.
  • the network connection and the mobility capability, the unlicensed carrier acts as the secondary cell, and provides the data channel capacity enhancement for the terminal. Therefore, the basic architecture of the LAA carrier aggregation will adopt the original carrier aggregation mode.
  • PDSCH Physical Downlink Shared Channel
  • DCI Downlink Control Information
  • the code sent by the originator can not only detect errors but also have certain error correction capability.
  • the receiver decoder After receiving the codeword, the receiver decoder first checks the error condition, if the error correction capability of the code is Internally, error correction is automatically performed. If there are many errors and the error correction capability of the code is exceeded, but the error can be detected, the receiving end sends a decision signal to the originating end through the feedback channel, requesting the originator to resend the information.
  • OFDM Orthogonal Frequency Division Multiplex
  • ACK/NACK Acknowledgement/Negative-acknowledgement
  • the ACK and NACK are collectively referred to as HARQ-ACK response information.
  • the downlink HARQ ACK/NACK feedback problem involving LAA (License Assisted Access) carrier aggregation especially when the LAA base station performs LBT (Listen Before Talk), needs to transmit a partial subframe, and the DCI information indication of the partial subframe It is sent in the next subframe, so the downlink HARQ ACK/NACK feedback in this working scenario remains to be studied.
  • LAA Liense Assisted Access
  • the HARQ ACK/NACK response information feedback problem of a partial subframe has no effective solution at present.
  • the embodiment of the invention provides a method and a device for feeding back and receiving a response message, and implements ACK/NACK response information feedback of the HARQ of the related central medium molecular frame.
  • a feedback method for a response message including:
  • the first node receives the first data sent by the second node and the scheduling information corresponding to the first data, where the first node determines a correct response ACK or an error response NACK feedback subframe corresponding to the first data, the first node And feeding back the ACK or NACK information on the determined subframe, where the first data subframe is transmitted earlier than a subframe in which the scheduling information is transmitted;
  • the first node Determining, by the first node, the correct response ACK or the error response NACK feedback subframe corresponding to the first data, the first node determining, according to the subframe where the first data is located, a correct response ACK corresponding to the first data Or the error acknowledges the NACK feedback subframe, or the first node determines the correct acknowledgement ACK or the error acknowledgement NACK feedback subframe corresponding to the first data according to the subframe where the scheduling information is located.
  • the determining, by the first node, the correct response ACK or the error response NACK feedback subframe corresponding to the first data according to the subframe where the scheduling information is located includes:
  • the ACK or NACK and the second data of the first data The ACK or NACK is fed back together, or the ACK or NACK of the first data and the ACK or NACK of the second data are combined and fed back.
  • the ACK or NACK of the first data and the ACK or NACK of the second data together include:
  • the ACK or NACK of the first data, the ACK or NACK of the second data, and the ACK or NACK of other serving cells are fed back together according to the serving cell index, where the same serving cell is used.
  • the ACK or the NACK of the first data is located before the ACK or the NACK of the second data, or the ACK or the NACK of the first data of the same serving cell is located after the ACK or NACK of the second data.
  • the ACK or NACK of the first data and the ACK or NACK of the second data together include:
  • the ACK or NACK of the first data and the ACK or NACK of the second data are respectively combined in the airspace and fed back together.
  • the ACK or NACK of the first data and the ACK or NACK combined feedback of the second data include:
  • the first data corresponding scheduling information and the second data corresponding scheduling information include: a downlink aggregation label DAI, where the DAI indicates a scheduling information situation in a subframe where the scheduling information is located.
  • the first node determines the ACK or NACK information of the feedback according to the DAI information, and if the scheduling information is lost according to the DAI, setting an ACK or a NACK corresponding to the lost scheduling information to a NACK, If it is determined according to the DAI that there is no scheduling information loss and only one scheduling information, only ACK or NACK information corresponding to one scheduling information is fed back, or after the ACK or NACK information corresponding to the scheduling information is repeated, the ACK or NACK is repeated.
  • Information feedback
  • the method further includes:
  • the scheduling information of the first data and the scheduling information of the second data are transmitted through a downlink control channel, or the scheduling information of the first data and the scheduling information of the second data are transmitted through two downlink control channels. .
  • the determining, by the first node, the correct response ACK or the error response NACK feedback subframe corresponding to the first data according to the subframe where the first data is located includes:
  • the corresponding uplink control channel resources corresponding to the ACK or the NACK are determined according to the resource indication signaling in the scheduling information.
  • the determining, by the first node, the correct response ACK or the error response NACK feedback subframe corresponding to the first data according to the subframe where the scheduling information is located includes:
  • the frame scheduling is not supported on the subframe where the scheduling information is located; the first node does not feed back the ACK on the subframe where the scheduling information is located, or determines the ACK or the NACK feedback subframe according to the subframe where the scheduling information is located. NACK information.
  • a method for receiving a response message including:
  • the second node sends the first data of the first node and the scheduling information corresponding to the first data, and the second node determines a correct response ACK or an error response NACK feedback subframe corresponding to the first data, where the second node is Receiving the ACK or NACK information on the determined subframe, where the transmitting the first data subframe is earlier than a subframe transmitting the scheduling information;
  • the second node Determining, by the second node, the correct response ACK or the error response NACK feedback subframe corresponding to the first data, the second node determining, according to the subframe where the first data is located, a correct response ACK or an error corresponding to the first data And responding to the NACK feedback subframe, or the second node determines, according to the subframe where the scheduling information is located, a correct response ACK or an error response NACK feedback subframe corresponding to the first data.
  • the determining, by the second node, the correct response ACK or the error response NACK feedback subframe corresponding to the first data according to the subframe where the scheduling information is located includes:
  • the second node receives the ACK or NACK of the first data and the ACK or NACK of the second data together with feedback information, or the second node receives the The ACK or NACK of the first data and the ACK or NACK of the second data are combined to feed back information.
  • the ACK or NACK of the first data and the ACK or NACK of the second data together include:
  • the ACK or NACK of the first data, the ACK or NACK of the second data, and the ACK or NACK of other serving cells are fed back together according to the serving cell index, where the same serving cell is used.
  • the ACK or the NACK of the first data is located before the ACK or the NACK of the second data, or the ACK or the NACK of the first data of the same serving cell is located after the ACK or NACK of the second data.
  • the ACK or NACK of the first data and the ACK or NACK of the second data together include:
  • the ACK or NACK of the first data and the ACK or NACK of the second data are respectively combined in the airspace and fed back together.
  • the ACK or NACK of the first data and the ACK or NACK combined feedback of the second data include:
  • the first data corresponding scheduling information or the second data corresponding scheduling information includes: a downlink aggregation label DAI, where the DAI indicates a scheduling information situation in a subframe where the scheduling information is located.
  • the second node determines the ACK or NACK information of the feedback according to the DAI information, and if one scheduling information is transmitted, the ACK or NACK information is repeated ACK or NACK information.
  • the scheduling information of the first data and the scheduling information of the second data are transmitted through a downlink control channel, or the scheduling information of the first data and the scheduling information of the second data are used by two Downlink control channel transmission.
  • the second node determines, according to the subframe where the first data is located, a correct response ACK or an error response NACK feedback subframe corresponding to the first data:
  • the resource indication signaling determines that the scheduling information corresponds to a corresponding uplink control channel resource of an ACK or a NACK.
  • the determining, by the second node, the correct response ACK or the error response NACK feedback subframe corresponding to the first data according to the subframe where the scheduling information is located includes:
  • the frame scheduling information is not transmitted on the subframe where the scheduling information is located; the second node determines that the ACK on the subframe where the scheduling information is not received on the ACK or NACK feedback subframe according to the subframe where the scheduling information is located Or NACK information.
  • a feedback device for a response message which is located on the terminal side, and includes:
  • a receiving module configured to receive first data sent by the second node and scheduling information corresponding to the first data
  • a first determining module configured to determine a correct response ACK or an error acknowledgement NACK feedback subframe corresponding to the first data, and feed back the ACK or NACK information on the determined subframe, where the first data is transmitted
  • the subframe is earlier than the subframe in which the scheduling information is transmitted; the first determining module is configured to: determine, by using the following manner, a correct response ACK or an error response NACK feedback subframe corresponding to the first data: according to the first data
  • the subframe determines a correct acknowledgement ACK or an error acknowledgement NACK feedback subframe corresponding to the first data, or determines a correct acknowledgement ACK or an error acknowledgement NACK feedback subframe corresponding to the first data according to the subframe in which the scheduling information is located.
  • a receiving device for a response message including:
  • a sending module configured to send the first data of the first node and the scheduling information corresponding to the first data, where the transmitting the first data subframe is earlier than the subframe for transmitting the scheduling information;
  • a second determining module configured to determine a correct response ACK or an error acknowledgement NACK feedback subframe corresponding to the first data, and receive the ACK or NACK information on the determined subframe, where the first data is determined
  • the frame includes: determining, according to the subframe where the first data is located, a correct response ACK or an error response NACK feedback subframe corresponding to the first data, or determining, according to the subframe where the scheduling information is located, the first data corresponding to the correct Acknowledge ACK or error acknowledge NACK feedback subframe.
  • the first node receives the first data sent by the second node and the scheduling information corresponding to the first data, and the first node determines a correct response ACK or an error response NACK feedback subframe corresponding to the first data, where The first node feeds back the ACK or NACK information on the determined subframe, where the first data subframe is transmitted earlier than the subframe in which the scheduling information is transmitted; the first node determines a correct response ACK corresponding to the first data.
  • the error response NACK feedback subframe includes: the first node determines, according to the subframe where the first data is located, a correct response ACK or an error response NACK feedback subframe corresponding to the first data, or the first node is located according to the scheduling information.
  • the subframe determines the correct acknowledgement ACK or the error acknowledgement NACK feedback subframe corresponding to the first data, solves the HARQ ACK/NACK response information feedback problem of the partial subframe, and improves the downlink PDSCH transmission performance and system throughput.
  • FIG. 1 is a flowchart of a method for feeding back a response message according to an embodiment of the present invention
  • FIG. 2 is a flowchart of a method for receiving a response message according to an embodiment of the present invention
  • FIG. 3 is a structural block diagram of a feedback device for replying a message according to an embodiment of the present invention.
  • FIG. 4 is a structural block diagram of a receiving apparatus for a response message according to an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of a timing relationship of an n-4 subframe PDSCH according to an optional embodiment of the present invention
  • 6 is an n-3 subframe (e)PDCCH timing relationship according to an alternative embodiment of the present invention.
  • FIG. 9 is a schematic diagram of a downlink HARQ-ACK feedback scheme according to an alternative embodiment of the present invention.
  • FIG. 1 is a flowchart of a method for feeding back a response message according to an embodiment of the present invention. As shown in FIG. 1, the process includes the following steps:
  • Step S102 The first node receives the first data sent by the second node and the scheduling information corresponding to the first data.
  • Step S104 the first node determines a correct response ACK or an error response NACK feedback subframe corresponding to the first data, and the first node feeds back the ACK or NACK information on the determined subframe.
  • Transmitting, by the second node, the first data subframe is earlier than a subframe for transmitting the scheduling information; determining, by the first node, the correct response ACK or the error response NACK feedback subframe corresponding to the first data includes: the first node is configured according to: Determining, by the first data, a correct response ACK or an error response NACK feedback subframe corresponding to the first data, or determining, by the first node, a correct response ACK or an error corresponding to the first data according to the subframe where the scheduling information is located Answer the NACK feedback subframe.
  • the first node receives the first data sent by the second node and the scheduling information corresponding to the first data, and the first node determines a correct response ACK or an error response NACK feedback subframe corresponding to the first data, where the first node The node feeds back the ACK or NACK information on the determined subframe, where the first data subframe is transmitted earlier than the subframe in which the scheduling information is transmitted; the first node determines a correct response ACK or error corresponding to the first data.
  • the responding to the NACK feedback subframe includes: determining, by the first node, the correct response ACK or the error response NACK feedback subframe corresponding to the first data according to the subframe where the first data is located, or the first node according to the subframe where the scheduling information is located Determining the correct response ACK or the error response NACK feedback subframe corresponding to the first data, solving the HARQ ACK/NACK response information feedback problem of the partial subframe, and improving downlink PDSCH transmission performance and system throughput.
  • the determining, by the first node, the correct response ACK or the error response NACK feedback subframe corresponding to the first data according to the subframe where the scheduling information is located includes:
  • the ACK or NACK of the first data and the ACK or NACK of the second data together include:
  • the ACK or NACK of the first data, the ACK or NACK of the second data, and the ACK or NACK of other serving cells are fed back together according to the serving cell index, wherein the first of the same serving cell
  • the ACK or NACK of the data is located before the ACK or NACK of the second data, or the ACK or NACK of the first data of the same serving cell is located after the ACK or NACK of the second data.
  • the ACK or NACK of the first data and the ACK or NACK of the second data together include:
  • the ACK or NACK of the first data and the ACK or NACK of the second data are respectively combined in the airspace and fed back together.
  • the ACK or NACK of the first data and the ACK or NACK of the second data are combined and the feedback includes:
  • the first data corresponding scheduling information and the second data corresponding scheduling information include: a downlink aggregation label DAI, where the DAI indicates scheduling information on a subframe where the scheduling information is located, for example, the first data and the second data scheduling information are simultaneously There is, or is, only one of the first data and the second data scheduling information.
  • DAI downlink aggregation label
  • the first node determines the ACK or NACK information of the feedback according to the DAI information, and if the scheduling information is lost according to the DAI, the lost scheduling information is The ACK or NACK is set to NACK. If no scheduling information is lost and only one scheduling information is determined according to the DAI, only ACK or NACK information corresponding to one scheduling information is fed back, or the ACK or NACK information corresponding to the scheduling information is repeated. And feedback the repeated ACK or NACK information;
  • the scheduling information of the first data and the scheduling information of the second data are transmitted through a downlink control channel, or the scheduling information of the first data and the scheduling information of the second data are controlled by two downlinks. Channel transmission.
  • the determining, by the first node, the correct response ACK or the error response NACK feedback subframe corresponding to the first data according to the subframe where the first data is located includes:
  • the corresponding uplink control channel resources corresponding to the ACK or the NACK are determined according to the resource indication signaling in the scheduling information.
  • the determining, by the first node, the correct response ACK or the error response NACK feedback subframe corresponding to the first data according to the subframe where the scheduling information is located includes:
  • the frame scheduling is not supported on the subframe where the scheduling information is located; the first node does not feed back ACK or NACK information on the subframe where the scheduling information is located on the ACK or NACK feedback subframe according to the subframe where the scheduling information is located.
  • FIG. 2 is a flowchart of a method for receiving a response message according to an embodiment of the present invention. As shown in FIG. 2, the process includes the following steps:
  • Step S202 the second node sends the first data of the first node and the scheduling information corresponding to the first data
  • Step S204 the second node determines a correct response ACK or an error response NACK feedback subframe corresponding to the first data, and the second node receives the ACK or NACK information in the determined subframe, where the first data is transmitted.
  • the subframe is earlier than the subframe in which the scheduling information is transmitted;
  • the determining, by the second node, the correct response ACK or the error response NACK feedback subframe corresponding to the first data includes: determining, by the second node, the first according to the subframe in which the first data is located Correct response corresponding to the data
  • the ACK or the error acknowledges the NACK feedback subframe, or the second node determines the correct acknowledgement ACK or the error acknowledgement NACK feedback subframe corresponding to the first data according to the subframe in which the scheduling information is located.
  • the first node receives the first data sent by the second node and the scheduling information corresponding to the first data, and the first node determines a correct response ACK or an error response NACK feedback subframe corresponding to the first data, where the first node The node feeds back the ACK or NACK information on the determined subframe, where the first data subframe is transmitted earlier than the subframe in which the scheduling information is transmitted; the first node determines a correct response ACK or error corresponding to the first data.
  • the responding to the NACK feedback subframe includes: determining, by the first node, the correct response ACK or the error response NACK feedback subframe corresponding to the first data according to the subframe where the first data is located, or the first node according to the subframe where the scheduling information is located Determining the correct response ACK or the error response NACK feedback subframe corresponding to the first data, solving the HARQ ACK/NACK response information feedback problem of the partial subframe, and improving downlink PDSCH transmission performance and system throughput.
  • the determining, by the second node, the correct response ACK or the error response NACK feedback subframe corresponding to the first data according to the subframe where the scheduling information is located includes:
  • the second node When the second data transmitted to the first node in the subframe where the scheduling information is located and the second data corresponding scheduling information are transmitted in the same subframe, the second node receives the ACK or NACK of the first data and the first The ACK or the NACK of the two data together feed back the information, or the second node receives the ACK or NACK of the first data and the ACK or NACK of the second data and combines the feedback information.
  • the ACK or NACK of the first data and the ACK or NACK of the second data together include:
  • the ACK or NACK of the first data, the ACK or NACK of the second data, and the ACK or NACK of other serving cells are fed back together according to the serving cell index, wherein the first of the same serving cell
  • the ACK or NACK of the data is located before the ACK or NACK of the second data, or the ACK or NACK of the first data of the same serving cell is located after the ACK or NACK of the second data.
  • the ACK or NACK of the first data and the ACK or NACK of the second data together include:
  • the ACK or NACK of the first data and the ACK or NACK of the second data respectively Feedback after airspace binding.
  • the ACK or NACK of the first data and the ACK or NACK of the second data are combined and the feedback includes:
  • the first data corresponding scheduling information or the second data corresponding scheduling information includes: a downlink aggregation label DAI, where the DAI indicates scheduling information on a subframe where the scheduling information is located, for example, the first data and the second data scheduling information exist simultaneously Or, only one of the first data and the second data scheduling information.
  • DAI downlink aggregation label
  • the second node determines the ACK or NACK information of the feedback according to the DAI information, and if a scheduling information is transmitted, the ACK or NACK information is repeated ACK or NACK information.
  • the scheduling information of the first data and the scheduling information of the second data are transmitted through a downlink control channel, or the scheduling information of the first data and the scheduling information of the second data are controlled by two downlinks. Channel transmission.
  • the second node determines, according to the subframe where the first data is located, a correct response ACK or an error response NACK feedback subframe corresponding to the first data:
  • the corresponding uplink control channel resources corresponding to the ACK or the NACK are determined according to the resource indication signaling in the scheduling information.
  • the determining, by the second node, the correct response ACK or the error response NACK feedback subframe corresponding to the first data according to the subframe where the scheduling information is located includes:
  • the frame scheduling information is not transmitted on the subframe where the scheduling information is located; the second node does not receive the ACK or NACK information on the subframe where the scheduling information is located on the ACK or NACK feedback subframe according to the subframe where the scheduling information is located.
  • a feedback device for the response message and a receiving device for the response message are provided, and the device is used to implement the foregoing embodiment and the optional implementation manner, and details are not described herein.
  • the term “module” may implement a combination of software and/or hardware of a predetermined function.
  • FIG. 3 is a structural block diagram of a feedback device for replying a message according to an embodiment of the present invention. As shown in FIG. 3, the device is located on the terminal side, and the device includes:
  • the receiving module 32 is configured to receive the first data sent by the second node and the scheduling information corresponding to the first data;
  • the first determining module 34 is configured to determine a correct response ACK or an error response NACK feedback subframe corresponding to the first data, and feed back the ACK or NACK information on the determined subframe, where the first data subframe is transmitted early And determining, by the first determining module, the correct response ACK or the error response NACK feedback subframe corresponding to the first data, determining, according to the subframe where the first data is located, determining that the first data is correct Answering the ACK or the error response NACK feedback subframe, or determining the correct response ACK or the error response NACK feedback subframe corresponding to the first data according to the subframe in which the scheduling information is located.
  • the first determining module 34 is further configured to:
  • the ACK or NACK of the first data and the ACK or NACK of the second data together include:
  • the ACK or NACK of the first data, the ACK or NACK of the second data, and the ACK or NACK of other serving cells are fed back together according to the serving cell index, wherein the first of the same serving cell
  • the ACK or NACK of the data is located before the ACK or NACK of the second data, or the ACK or NACK of the first data of the same serving cell is located after the ACK or NACK of the second data.
  • the ACK or NACK of the first data and the ACK or NACK of the second data together include:
  • the ACK or NACK of the first data and the ACK or NACK of the second data are respectively combined in the airspace and fed back together.
  • the NACK combined feedback includes:
  • the first data corresponding scheduling information and the second data corresponding scheduling information include: a downlink aggregation label DAI, where the DAI indicates scheduling information on a subframe where the scheduling information is located, for example, the first data and the second data scheduling information are simultaneously There is, or is, only one of the first data and the second data scheduling information.
  • DAI downlink aggregation label
  • the ACK or NACK information of the feedback is determined according to the DAI information. If the scheduling information is lost according to the DAI, the ACK or NACK corresponding to the lost scheduling information is set to NACK, if no scheduling is determined according to the DAI. If the information is lost and there is only one scheduling information, only the ACK or NACK information corresponding to one scheduling information is fed back, or after the ACK or NACK information corresponding to the scheduling information is repeated, the repeated ACK or NACK information is fed back;
  • the scheduling information of the first data and the scheduling information of the second data are transmitted through a downlink control channel, or the scheduling information of the first data and the scheduling information of the second data are controlled by two downlinks. Channel transmission.
  • the first determining module is configured to: determine, according to the subframe where the first data is located, a correct response ACK or an error response NACK feedback subframe corresponding to the first data:
  • the corresponding uplink control channel resources corresponding to the ACK or the NACK are determined according to the resource indication signaling in the scheduling information.
  • the first determining module is configured to: determine, according to the subframe where the scheduling information is located, that the correct response ACK or the error response NACK feedback subframe corresponding to the first data is:
  • the frame scheduling is not supported on the subframe where the scheduling information is located; the ACK or NACK information on the subframe where the scheduling information is not fed back is determined on the ACK or NACK feedback subframe according to the subframe where the scheduling information is located.
  • FIG. 4 is a structural block diagram of a receiving apparatus for a response message according to an embodiment of the present invention. As shown in FIG. 4, the apparatus is located at a base station side, and the apparatus includes:
  • the sending module 42 is configured to send the first data of the first node and the scheduling information corresponding to the first data, where the first data subframe is transmitted earlier than the subframe in which the scheduling information is transmitted;
  • the second determining module 44 is configured to determine a correct response ACK or an error response NACK feedback subframe corresponding to the first data, and receive the ACK or NACK information on the determined subframe, where the first data is determined to be correct Answering the ACK or the error response NACK feedback subframe includes: determining a correct response ACK or an error response NACK feedback subframe corresponding to the first data according to the subframe where the first data is located, or determining the first according to the subframe where the scheduling information is located The data corresponds to the correct acknowledgement ACK or the error acknowledgement NACK feedback subframe.
  • the second determining module 44 is further configured to:
  • the NACK feeds back the information together, or the ACK or NACK that receives the first data and the ACK or NACK of the second data combine and feed back the information.
  • the ACK or NACK of the first data and the ACK or NACK of the second data together include:
  • the ACK or NACK of the first data, the ACK or NACK of the second data, and the ACK or NACK of other serving cells are fed back together according to the serving cell index, wherein the first of the same serving cell
  • the ACK or NACK of the data is located before the ACK or NACK of the second data, or the ACK or NACK of the first data of the same serving cell is located after the ACK or NACK of the second data.
  • the ACK or NACK of the first data and the ACK or NACK of the second data together include:
  • the ACK or NACK of the first data and the ACK or NACK of the second data are respectively combined in the airspace and fed back together.
  • the ACK or NACK of the first data and the ACK or NACK of the second data are combined and the feedback includes:
  • the first data corresponding scheduling information or the second data corresponding scheduling information includes: a downlink aggregation label DAI, where the DAI indicates scheduling information on a subframe where the scheduling information is located, for example, the first data.
  • the second data scheduling information exists at the same time, or only one of the first data and the second data scheduling information.
  • the receiving apparatus determines the ACK or NACK information of the feedback according to the DAI information, and if a scheduling information is transmitted, the ACK or NACK information is repeated ACK or NACK information.
  • the scheduling information of the first data and the scheduling information of the second data are transmitted through a downlink control channel, or the scheduling information of the first data and the scheduling information of the second data are controlled by two downlinks. Channel transmission.
  • the second determining module is configured to: determine, according to the subframe where the first data is located, a correct response ACK or an error response NACK feedback subframe corresponding to the first data:
  • the corresponding uplink control channel resources corresponding to the ACK or the NACK are determined according to the resource indication signaling in the scheduling information.
  • the first node and the second node correspond to the terminal and the base station, or the data corresponds to data of the PDSCH, and the scheduling information corresponds to (e) scheduling information on the PDCCH.
  • the optional embodiment provides a LAA downlink HARQ ACK/NACK feedback scheme.
  • the technical solution adopted by the embodiment of the present invention mainly includes three parts: 1. feedback timing relationship, 2. feedback mode, and 3. transmission mode.
  • the subframe in which the frame and its corresponding scheduling information are located may not be limited to the n+3 and n+4 adjacent subframe scenarios, and may also include other situations, such as one or more subframes.
  • the solution can also apply the scenario in which the unlicensed carrier operates independently.
  • the future authorized carrier also supports the post-scheduling scenario.
  • This method can solve the ACK/NACK feedback problem in the post-scheduling scenario and improve the downlink PDSCH transmission performance and system throughput.
  • the ACK/NACK feedback subframe of the PDSCH is determined according to the subframe in which the DCI is located or determined according to the subframe in which the PDSCH is located;
  • FIG. 5 is a schematic diagram of the timing of the n-4 subframe PDSCH timing according to an alternative embodiment of the present invention, as shown in FIG. 5, the n-4 subframe PDSCH timing relationship; 6 is an n-3 subframe (e)PDCCH timing relationship according to an alternative embodiment of the present invention, as shown in FIG. 6, an n-3 subframe (e) PDCCH (EPDCCH (Enhanced PDCCH ⁇ Enhanced-Physical Downlink) Control Channel)) Timing relationship.
  • the independent mode is equivalent to the first in the foregoing implementation.
  • the ACK/NACK of the data is fed back together with the ACK/NACK of the second data, and the bundling manner is equivalent to the ACK/NACK of the first data and the ACK/NACK combined feedback of the second data.
  • FIG. 7 is a partial subframe PDSCH and PDCCH indication relationship 1 according to an optional embodiment of the present invention. As shown in FIG. 7, the PDSCH of the n-4 partial subframe and the PDSCH of the n-3 subframe are respectively performed by using independent DCI. Instructions.
  • FIG. 8 is a partial subframe PDSCH and PDCCH indication relationship 2 according to an alternative embodiment of the present invention. As shown in FIG. 8, a PDSCH of an n-4 partial subframe and a PDSCH of an n-3 subframe respectively use a new DCI. Give instructions.
  • the spatial bundling may be determined according to the feedback capacity and the number of the post-scheduled carriers, and then the ACK/NACK to be fed back is fed back in series according to the sequence of the subcarriers after the first carrier index.
  • the Bundling mode it includes:
  • the DAI is not introduced in the DCI information, and the resource is differentiated.
  • the resource location corresponding to the (e)PDCCH is different, and the current scheduling is one PDSCH or two PDSCHs to solve the (e) PDCCH loss problem, for example,
  • the PDCCH resource is divided into two resource sets. When one DCI information is transmitted in one resource set, it indicates that there are two PDSCHs, and the other DCI information in the other resource set indicates that there is only one PDSCH.
  • DAI is not introduced in the DCI information, and the n-4 partial subframe and the n-3 subframe are jointly scheduled, and only one PDSCH exists (transmitted on one subframe or transmitted on two subframes); or one (e
  • the PDCCH may schedule one PDSCH or two PDSCHs;
  • the transmission mode can be divided into three types: 1) PUCCH Format 1b with channel selection; 2) PUCCH Format 3 (PUCCH Format 3); 3) New PUCCH format (new) PUCCH Format).
  • the terminal may perform uplink feedback ACK/NACK information in the PUCCH Format 1b with channel selection manner, and the DCI information indication of the n-4 partial subframe PDSCH may be as shown in FIG. 7 or 6. .
  • the transmission mode is PUCCH format 1b channel selection
  • the eNodeB configures two PUCCH Format 1 resource lists for the UE through the n1-PUCCH-AN-CS-List-r10 field, and each list includes four PUCCH 1 resources, which are respectively a0/a1/a2/a3 and b0/b1. /b2/b3.
  • the terminal checks the PUCCH Format1 resource and the corresponding bit information according to the ACK/NACK information that needs to be replied to the table 10.1.2.2.1-3/4/5 of 36.213, and the UE selects the corresponding resource from the A PUCCH resources to carry the PUCCH format 1b.
  • the 2-bit information is fed back to the eNodeB.
  • FIG. 9 is a schematic diagram of a downlink HARQ-ACK feedback scheme according to an alternative embodiment of the present invention.
  • the terminal has 1 in the n-3 subframe on the Pcell.
  • the TB transmits; the terminal has one TB transmission in the n-4 partial subframe on the Scell, and one TB transmission in the n-3 subframe.
  • CRC Cyclic Redundancy Check
  • the terminal passes the Control Channel Element (CCE)/Enhanced Control Channel Element (Enhanced-Control Channel Element, referred to as ECCE) of the PDCCH/EPDCCH that carries the DCI on the primary serving cell (Primary Serving Cell, Pcell for short).
  • CCE Control Channel Element
  • ECCE Enhanced-Control Channel Element
  • the terminal is obtained from a secondary serving cell (Secondary Serving Cell, Scell for short). Specific methods of obtaining:
  • the TPC field in the DCI information of the n-4 partial subframe PDSCH is obtained. For example, if the TPC field is 00, then At the same time, the TPC field in the DCI information of the n-3 partial subframe PDSCH is obtained. For example, if the TPC field is 10, then
  • the TPC field information is passed, for example, the TPC field is 00, then
  • the PUCCH resource corresponding to the HARQ-ACK of the SCell is determined according to an implicit mapping formula of the CCE/ECCE lowest index of the PDCCH/EPDCCH carrying the DCI.
  • the UE checks the PUCCH resource and the corresponding bit information according to the ACK/NACK information of the ACK/NACK information.
  • the UE uses the corresponding resource to feed back the 2-bit information carried by the PUCCH format 1b to the eNodeB.
  • the terminal When the sum of the number of authorized carriers and the number of unlicensed carriers is 2, as shown in FIG. 9, the terminal has 1 TB for transmission in the n-3 subframe on the Pcell; the terminal has 1 TB in the n-4 partial subframe on the Scell. Send, n-3 subframes have 1 TB transmission.
  • the terminal is obtained on the Scell Specific methods of obtaining:
  • two of the PUCCH 1 resources configured by the eNodeB are configured by the TPC field in the DCI information corresponding to the n-4 partial subframe PDSCH, and there are two options.
  • the TPC field in the DCI information of the n-4 partial subframe PDSCH is obtained. For example, if the TPC field is 00, then At the same time, the TPC field in the DCI information of the n-3 partial subframe PDSCH is obtained. For example, if the TPC field is 10, then
  • the TPC field information is passed, for example, the TPC field is 00, then
  • the PUCCH resource corresponding to the HARQ-ACK of the SCell is determined according to an implicit mapping formula of the CCE/ECCE lowest index of the PDCCH/EPDCCH carrying the DCI.
  • the UE checks the PUCCH resource and the corresponding bit information according to the ACK/NACK information of the ACK/NACK information.
  • the UE uses the corresponding resource to feed back the 2-bit information carried by the PUCCH format 1b to the eNodeB.
  • the terminal When the sum of the number of authorized carriers and the number of unlicensed carriers is 2, as shown in FIG. 9, the terminal has 2 TBs for transmission in the n-3 subframe on the Pcell; the terminal has 1 TB in the n-4 partial subframe on the Scell. Send, n-3 subframe has 1 TB to send:
  • the terminal determines the ACK/NACK information of the corresponding TB block by the CRC at the receiving end, and maps according to Table 3; at the same time, the terminal determines A uplink PUCCH1 resources corresponding to Table 3 HARQ-ACK (j).
  • A 4.
  • the specific obtaining method is: selecting two of the PUCCH 1 resources configured by the eNodeB to the terminal by using the TPC field in the DCI information corresponding to the n-4 partial subframe PDSCH, and there are two selection methods:
  • the TPC field in the DCI information of the n-4 partial subframe PDSCH is obtained. For example, if the TPC field is 00, then At the same time, the TPC field in the DCI information of the n-3 partial subframe PDSCH is obtained. For example, if the TPC field is 10, then
  • the TPC field information is passed, for example, the TPC field is 00, then
  • the PUCCH resource corresponding to the HARQ-ACK of the SCell is determined according to an implicit mapping formula of the CCE/ECCE lowest index of the PDCCH/EPDCCH carrying the DCI.
  • the UE can check the PUCCH resource and the corresponding bit information according to the ACK/NACK information of the ACK/NACK information.
  • the UE uses the corresponding resource to feed back the 2-bit information carried by the PUCCH format 1b to the eNodeB.
  • the terminal When the sum of the number of authorized carriers and the number of unlicensed carriers is 2, as shown in FIG. 9, the terminal has 2 TBs for transmission in the n-3 subframe on the Pcell; the terminal has 2 TBs in the n-4 partial subframe on the Scell. Send, n-3 subframes have 2 TBs to send:
  • the specific obtaining method is: selecting two of the PUCCH 1 resources configured by the eNodeB to the terminal by using the TPC field in the DCI information corresponding to the n-4 partial subframe PDSCH, and there are two selection methods:
  • the TPC field in the DCI information of the n-4 partial subframe PDSCH is obtained. For example, if the TPC field is 00, then At the same time, the TPC field in the DCI information of the n-3 partial subframe PDSCH is obtained. For example, if the TPC field is 10, then
  • the TPC field information is passed, for example, the TPC field is 00, then
  • the PUCCH resource corresponding to the HARQ-ACK of the SCell is determined according to an implicit mapping formula of the CCE/ECCE lowest index of the PDCCH/EPDCCH carrying the DCI.
  • the UE checks the Table 10.1.2.2.1-5 of 36.213 according to the ACK/NACK information of the replies to know the PUCCH resource and the corresponding bit information, and the UE uses the corresponding resource to carry the PUCCH format 1b.
  • the 2-bit information of the band is fed back to the eNodeB.
  • the case where the transmission mode is PUCCH Format 3 (PUCCH Format 3) includes:
  • the terminal When the sum of the number of authorized carriers and unlicensed carriers is greater than 2 and less than 5, or equal to 2, or equal to 5.
  • the terminal performs ACK/NACK feedback on the PDSCH of the n-4 partial subframe and the PDSCH of the n-3 subframe on the n+1 subframe by using the PUCCH Format 3.
  • the base station notifies the terminal through the RRC message.
  • the eNodeB will use the TPC field in the PDCCH to inform the UE which of several candidate resources to use in subsequent scheduling.
  • the terminal checks Table 10.1.2.2.2-1 of 36.213 according to the TPC command for PUCCH field in the PDCCH received on the SCell, and selects one of the 4 (or 4 pairs) PUCCH 3 resources to reply ACK/NACK.
  • the TPC fields of the downlink DCI received by the UE in all SCells of the same subframe must be the same, that is, the same PUCCH 3 resource is specified.
  • the TPC field in the PDCCH corresponding to the PDSCH of the n-4 partial subframe needs to be the same as the TPC field in the PDCCH corresponding to the PDSCH of the n-3 subframe, so that the terminal ensures that the terminal uses the same PUCCH on the n+1 subframe.
  • the Format 3 resource performs ACK/NACK feedback.
  • the ACK/NACK feedback carried by the PUCCH Format 3 is transmitted in tandem according to the serving cell index, and is sequentially transmitted according to the subframe timing for the serving cell including the partial subframe.
  • the case where the transmission mode is the new PUCCH format (New PUCCH Format) includes:
  • the new PUCCH Format may be adopted:
  • the PUCCH Format 3 resource is extended in the frequency domain, and is transmitted by using multiple RBs;
  • More ACK/NACK information will be carried in the PUSCH resource mapping manner.
  • the terminal configures TM7 on the Pcell, and the n-3 subframe has one TB for transmission; the terminal configures TM7, n- on the Scell. 4 Some subframes have 1 TB transmission, and n-3 subframes have 1 TB transmission.
  • the terminal is obtained on the Pcell Specific calculation method:
  • the terminal is obtained on the Scell Specific methods of obtaining:
  • two of the PUCCH 1 resources configured by the eNodeB are configured by the TPC field in the DCI information corresponding to the n-4 partial subframe PDSCH, and there are two options.
  • the TPC field in the DCI information of the n-4 partial subframe PDSCH is obtained. For example, if the TPC field is 00, then At the same time, the TPC field in the DCI information of the n-3 partial subframe PDSCH is obtained. For example, if the TPC field is 10, then
  • the TPC field information is passed, for example, the TPC field is 00, then
  • the PUCCH resource corresponding to the HARQ-ACK of the SCell is determined according to an implicit mapping formula of the CCE/ECCE lowest index of the PDCCH/EPDCCH carrying the DCI.
  • the UE checks the PUCCH resource and the corresponding bit information according to the ACK/NACK information of the ACK/NACK information.
  • the UE uses the corresponding resource to feed back the 2-bit information carried by the PUCCH format 1b to the eNodeB.
  • the terminal configures TM7 on the Pcell, and the n-3 subframe has one TB for transmission; the terminal configures TM7, n- on the Scell. 4 partial subframes have 1 TB transmission, and n-3 subframes have 1 TB transmission.
  • the terminal is obtained on the Pcell Specific calculation method:
  • the terminal is obtained on the Scell Specific methods of obtaining:
  • two of the PUCCH 1 resources configured by the eNodeB are configured by the TPC field in the DCI information corresponding to the n-4 partial subframe PDSCH, and there are two options.
  • the TPC field in the DCI information of the n-4 partial subframe PDSCH is obtained. For example, if the TPC field is 00, then At the same time, the TPC field in the DCI information of the n-3 partial subframe PDSCH is obtained. For example, if the TPC field is 10, then
  • the TPC field information is passed, for example, the TPC field is 00, then
  • the PUCCH resource corresponding to the HARQ-ACK of the SCell is determined according to an implicit mapping formula of the CCE/ECCE lowest index of the PDCCH/EPDCCH carrying the DCI.
  • the UE checks the PUCCH resource and the corresponding bit information according to the ACK/NACK information of the ACK/NACK information.
  • the UE uses the corresponding resource to feed back the 2-bit information carried by the PUCCH format 1b to the eNodeB.
  • the terminal configures TM3 on the Pcell, and the n-3 subframe has 2 TBs for transmission; the terminal configures TM7 on the Scell, n- 4 partial subframes have 1 TB transmission, and n-3 subframes have 1 TB transmission:
  • the specific obtaining method is: selecting two of the PUCCH 1 resources configured by the eNodeB to the terminal by using the TPC field in the DCI information corresponding to the n-4 partial subframe PDSCH, and there are two selection methods:
  • the TPC field in the DCI information of the n-4 partial subframe PDSCH is obtained. For example, if the TPC field is 00, then At the same time, the TPC field in the DCI information of the n-3 partial subframe PDSCH is obtained. For example, if the TPC field is 10, then
  • the TPC field information is passed, for example, the TPC field is 00, then
  • the PUCCH resource corresponding to the HARQ-ACK of the SCell is determined according to an implicit mapping formula of the CCE/ECCE lowest index of the PDCCH/EPDCCH carrying the DCI.
  • the UE can check the PUCCH resource and the corresponding bit information according to the ACK/NACK information of the ACK/NACK information.
  • the UE uses the corresponding resource to feed back the 2-bit information carried by the PUCCH format 1b to the eNodeB.
  • the terminal configures TM3 on the Pcell, and the n-3 subframe has 2 TBs for transmission; the terminal configures TM3, n- on the Scell. 4 partial subframes have 2 TB transmissions, and n-3 subframes have 2 TB transmissions:
  • the terminal is obtained on the Pcell Specific calculation method:
  • the specific obtaining method is: selecting two of the PUCCH 1 resources configured by the eNodeB to the terminal by using the TPC field in the DCI information corresponding to the n-4 partial subframe PDSCH, and there are two selection methods:
  • the TPC field in the DCI information of the n-4 partial subframe PDSCH is obtained. For example, if the TPC field is 00, then At the same time, the TPC field in the DCI information of the n-3 partial subframe PDSCH is obtained. For example, if the TPC field is 10, then
  • the TPC field information is passed, for example, the TPC field is 00, then
  • the PUCCH resource corresponding to the HARQ-ACK of the SCell is determined according to an implicit mapping formula of the CCE/ECCE lowest index of the PDCCH/EPDCCH carrying the DCI.
  • the UE can check the PUCCH resource and the corresponding bit information according to the ACK/NACK information of the ACK/NACK information.
  • the UE uses the corresponding resource to feed back the 2-bit information carried by the PUCCH format 1b to the eNodeB.
  • the terminal configures TM3 on the Pcell, and the n-3 subframe has 2 TBs for transmission.
  • the terminal configures TM3 on Scell#1, and the n-4 partial subframe has 2 TB transmissions, and the n-3 subframe has 2 TB transmissions; the terminal configures TM7 and n-4 partial subframes on Scell#2.
  • the base station notifies the UE that several candidate PUCCH Format 3 resources can be used by using an RRC message.
  • the eNodeB will use the TPC field in the PDCCH to inform the UE which of several candidate resources to use in subsequent scheduling.
  • the terminal performs ACK/NACK feedback on the PDSCH of the n-4 partial subframe and the PDSCH of the n-3 subframe on the n+1 subframe using the PUCCH Format 3 resource, and a specific example is shown in FIG. 6.
  • the Format 3 resource performs ACK/NACK feedback.
  • PUCCH The ACK/NACK feedback carried by the format 3 is sent in series according to the serving cell index, and is sequentially transmitted according to the subframe timing for the serving cell including the partial subframe, as shown in Table 5.
  • the terminal checks Table 10.1.2.2.2-1 of 36.213 according to the TPC command for PUCCH field in the PDCCH received on the SCell, and selects one of the 4 (or 4 pairs) PUCCH 3 resources to reply ACK/NACK.
  • the TPC fields of the downlink DCI received by the UE in all SCells of the same subframe must be the same, that is, the same PUCCH 3 resource is specified.
  • the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course, by hardware, but in many cases, the former is A better implementation.
  • the technical solution of the present invention which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a storage medium (such as ROM/RAM, disk,
  • the optical disc includes a number of instructions for causing a terminal device (which may be a cell phone, a computer, a server, or a network device, etc.) to perform the methods described in various embodiments of the present invention.
  • each of the above modules may be implemented by software or hardware.
  • the foregoing may be implemented by, but not limited to, the foregoing modules are all located in the same processor; or, the modules are located in multiple In the processor.
  • Embodiments of the present invention also provide a storage medium.
  • the storage medium may be configured to store program code for performing the method steps of the above embodiment:
  • the foregoing storage medium may include, but not limited to, a USB flash drive, a Read-Only Memory (ROM), a Random Access Memory (RAM), a mobile hard disk, and a magnetic memory.
  • ROM Read-Only Memory
  • RAM Random Access Memory
  • a mobile hard disk e.g., a hard disk
  • magnetic memory e.g., a hard disk
  • the processor performs the method steps of the foregoing embodiments according to the stored program code in the storage medium.
  • modules or steps of the present invention described above can be implemented by a general-purpose computing device that can be centralized on a single computing device or distributed across a network of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein.
  • the steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps thereof are fabricated as a single integrated circuit module.
  • the invention is not limited to any specific combination of hardware and software.
  • the foregoing technical solution implements HARQ ACK/NACK response information feedback of a partial subframe, and improves downlink PDSCH transmission performance and system throughput.

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Abstract

L'invention concerne un procédé et un appareil de renvoi et de réception de message d'accusé de réception. Le procédé comprend les opérations suivantes : un premier nœud reçoit des premières données et des informations de calendrier correspondant aux premières données qui sont envoyées par un second nœud ; et le premier nœud détermine une sous-trame de renvoi d'accusé de réception positif (ACK) ou d'accusé de réception négatif (NACK) correspondant aux premières données, et le premier nœud renvoie des informations d'ACK ou de NACK dans la sous-trame déterminée, une sous-trame transmettant les premières données étant antérieure à une sous-trame transmettant les informations de calendrier, et la détermination, par le premier nœud, d'une sous-trame de renvoi d'ACK ou de NACK correspondant aux premières données comprenant les opérations suivantes : le premier nœud détermine la sous-trame de renvoi d'ACK ou de NACK correspondant aux premières données selon la sous-trame transportant les premières données ; ou le premier nœud détermine la sous-trame de renvoi d'ACK ou de NACK correspondant aux premières données selon la sous-trame transportant les informations de calendrier. De cette manière, le problème de renvoi d'informations d'ACK/NACK de demandes de répétition automatiques hybrides (HARQ) de certaines sous-trames est résolu, et les performances de transmission de PDSCH de liaison descendante et le débit du système sont accrus.
PCT/CN2016/082359 2015-08-14 2016-05-17 Procédé et appareil de renvoi et de réception de message d'accusé de réception WO2017028570A1 (fr)

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US11546123B2 (en) 2017-06-09 2023-01-03 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Wireless communication method and device
CN115189812A (zh) * 2021-04-06 2022-10-14 大唐移动通信设备有限公司 Harq反馈、波束指示方法、网络侧设备及终端
CN115189812B (zh) * 2021-04-06 2023-11-07 大唐移动通信设备有限公司 Harq反馈、波束指示方法、网络侧设备及终端

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