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WO2017161541A1 - 下行数据的混合式自动重传请求反馈方法以及装置 - Google Patents

下行数据的混合式自动重传请求反馈方法以及装置 Download PDF

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Publication number
WO2017161541A1
WO2017161541A1 PCT/CN2016/077255 CN2016077255W WO2017161541A1 WO 2017161541 A1 WO2017161541 A1 WO 2017161541A1 CN 2016077255 W CN2016077255 W CN 2016077255W WO 2017161541 A1 WO2017161541 A1 WO 2017161541A1
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WIPO (PCT)
Prior art keywords
epdcch
harq
downlink
harq feedback
codebook
Prior art date
Application number
PCT/CN2016/077255
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English (en)
French (fr)
Inventor
肖洁华
吕永霞
伯根⋅富兰崛克
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2016/077255 priority Critical patent/WO2017161541A1/zh
Priority to ES20206118T priority patent/ES2952054T3/es
Priority to PCT/CN2017/078094 priority patent/WO2017162205A1/zh
Priority to CN201780019580.0A priority patent/CN108886437B/zh
Priority to KR1020187030327A priority patent/KR102163633B1/ko
Priority to CN201910641765.6A priority patent/CN110380829B/zh
Priority to EP20206118.0A priority patent/EP3840265B1/en
Priority to EP17769482.5A priority patent/EP3429109B1/en
Publication of WO2017161541A1 publication Critical patent/WO2017161541A1/zh
Priority to US16/139,688 priority patent/US10686562B2/en
Priority to US16/897,812 priority patent/US11990999B2/en

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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
    • H04L1/1829—Arrangements specially adapted for the receiver end
    • H04L1/1861—Physical mapping arrangements
    • 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
    • H04L1/1607—Details of the supervisory signal
    • 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
    • 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
    • H04L1/1829—Arrangements specially adapted for the receiver end
    • H04L1/1854—Scheduling and prioritising arrangements
    • 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
    • H04L1/1829—Arrangements specially adapted for the receiver end
    • H04L1/1864—ARQ related signaling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signalling, i.e. of overhead other than pilot signals
    • H04L5/0055—Physical resource allocation for ACK/NACK
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A) or DMT
    • H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A) or DMT the frequencies being arranged in component carriers

Definitions

  • the present application relates to the field of communications technologies, and in particular, to a hybrid automatic repeat request feedback method and apparatus for downlink data.
  • HARQ Hybrid Automatic Repeat Request
  • ARQ Automatic Repeat Request
  • FEC Forward Error Correction
  • the ACK and NACK signals are collectively referred to as HARQ bits, and may also be referred to as HARQ feedback bits and HARQ responses.
  • HARQ bits When the originator receives the ACK signal, it can send new data, otherwise it may need to resend the last transmitted packet.
  • the downlink HARQ is a confirmation procedure for the terminal to correctly receive data sent by the base station.
  • a dynamic HARQ codebook is usually used.
  • the downlink transmission includes the PDSCH (Physical Downlink Shared Channel) transmitted on the configured periodic SPS (Semi-Persistent Scheduling) subframe
  • the current dynamic HARQ codebook cannot be used for the SPS.
  • the downstream transmission makes a response to whether it is received correctly. Therefore, how to further improve the dynamic HARQ codebook and improve the application range of the dynamic HARQ codebook is an urgent problem to be solved at this stage.
  • the embodiment of the present application provides a hybrid automatic retransmission request feedback method and device for downlink data, which can correctly respond to the downlink transmission of the SPS and improve the applicable range of the dynamic HARQ.
  • a hybrid automatic retransmission request feedback method for downlink data including:
  • the HARQ feedback codebook includes HARQ bits for PDSCH transmission without a corresponding PDCCH or EPDCCH.
  • the HARQ feedback codebook includes the HARQ bit of the PDSCH transmission without the corresponding PDCCH or EPDCCH, so that the downlink transmission of the SPS can be correctly made.
  • Receiving responses improves the scope of application of dynamic HARQ codebooks.
  • the HARQ bit of the PDSCH transmission without the corresponding PDCCH or EPDCCH is located in the last bit or the first bit of the HARQ feedback codebook.
  • a hybrid automatic retransmission request feedback method for downlink data including:
  • the first indicator total value is used to indicate a serving cell that includes a downlink shared channel PDSCH transmission in one subframe and a physical downlink control channel PDCCH or enhanced physical downlink control that is used to indicate downlink semi-persistent scheduling SPS release.
  • the HARQ feedback codebook includes HARQ bits for PDSCH transmission without corresponding PDCCH or EPDCCH.
  • the HARQ feedback codebook includes the HARQ bit of the PDSCH transmission without the corresponding PDCCH or EPDCCH, so that the downlink transmission of the SPS can be correctly made.
  • Receiving responses improves the scope of application of dynamic HARQ codebooks.
  • the third aspect provides a hybrid automatic retransmission request feedback method for downlink data, including:
  • the base station Receiving downlink data from the base station; transmitting a hybrid automatic repeat request HARQ feedback codebook to the base station; wherein, the size of the HARQ feedback codebook is based on a state of the semi-persistent scheduling SPS and a downlink allocation indication in the downlink data The total value is determined; the HARQ feedback codebook includes HARQ bits of a downlink shared channel PDSCH transmission without a corresponding physical downlink control channel PDCCH or an enhanced physical downlink control channel EPDCCH.
  • the HARQ feedback codebook includes the HARQ bits of the PDSCH transmission without the corresponding PDCCH or EPDCCH, so that the downlink transmission of the SPS can be correctly made.
  • the receiving response improves the scope of application of the dynamic HARQ codebook.
  • the size of the HARQ feedback codebook is equal to the size of the first codebook plus 1 bit;
  • the size of a codebook is determined according to the total value of the downlink allocation indication.
  • the first parameter is configured according to the receiving condition of the information indicating the semi-persistent scheduling SPS activation and deactivation, the first parameter is used to indicate the status of the SPS, or a value of a HARQ bit of a PDSCH transmission corresponding to a PDCCH or an EPDCCH; when receiving information indicating the SPS activation from the base station, the value of the first parameter is 1; when receiving an indication from the base station When the SPS deactivates the information, the value of the first parameter is 0.
  • the size of the HARQ feedback codebook is equal to the size of the first codebook plus 1 bit;
  • the size of the first codebook is determined according to the total value of the downlink allocation indication.
  • the HARQ bit of the PDSCH transmission without the corresponding PDCCH or EPDCCH is located in the HARQ feedback code The last or first place of this.
  • a hybrid automatic repeat request feedback device for downlink data for performing the method in the above first aspect, and the device may be a terminal.
  • the fifth aspect provides a hybrid automatic repeat request feedback device for performing downlink data, where the device may be a base station.
  • a hybrid automatic repeat request feedback device for downlink data for performing the method in the foregoing third aspect, and the device may be a terminal.
  • a hybrid automatic repeat request feedback device for downlink data including a receiver, a transmitter, and a processor, for performing the method in the above first aspect.
  • a hybrid automatic repeat request feedback device for downlink data including a receiver, a transmitter, and a processor, for performing the method in the second aspect above.
  • a hybrid automatic repeat request feedback device for downlink data including a receiver, a transmitter, and a processor, for performing the method in the foregoing third aspect.
  • a computer storage medium having stored therein program code for performing the method of the first aspect described above.
  • a computer storage medium storing program code for performing the method of the second aspect above.
  • a computer storage medium having stored therein program code for performing the method of the above third aspect.
  • the technical solution provided by the present application determines the size of the HARQ feedback codebook according to the downlink data, where the HARQ feedback codebook includes the HARQ bits of the PDSCH transmission without the corresponding PDCCH or EPDCCH, so that the downlink transmission of the SPS can be correctly performed.
  • Receiving responses improves the scope of application of dynamic HARQ codebooks.
  • FIG. 1 is a schematic diagram of an implementation environment of a hybrid automatic retransmission request feedback method for downlink data according to an embodiment of the present disclosure.
  • FIG. 2 is a flowchart of a first embodiment of a method for hybrid automatic retransmission request feedback of downlink data according to an embodiment of the present disclosure.
  • FIG. 3 is a schematic diagram of generating a HARQ codebook in a first embodiment of a hybrid automatic repeat request feedback method for downlink data according to an embodiment of the present disclosure.
  • FIG. 4 is a schematic diagram of generating a HARQ codebook in a first embodiment of a hybrid automatic repeat request feedback method for downlink data according to an embodiment of the present disclosure.
  • FIG. 5 is a flowchart of a second embodiment of a hybrid automatic repeat request feedback method for downlink data according to an embodiment of the present application.
  • FIG. 6 is a flowchart of a third embodiment of a hybrid automatic retransmission request feedback method for downlink data according to an embodiment of the present application.
  • FIG. 7 is a schematic diagram of generating a HARQ codebook in a third embodiment of a hybrid automatic retransmission request feedback method for downlink data according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic structural diagram of a first embodiment of a hybrid automatic repeat request feedback device for downlink data according to an embodiment of the present disclosure.
  • FIG. 9 is a schematic structural diagram of a second embodiment of a hybrid automatic retransmission request feedback apparatus for downlink data according to an embodiment of the present application.
  • FIG. 10 is a schematic structural diagram of a third embodiment of a hybrid automatic repeat request feedback device for downlink data according to an embodiment of the present application.
  • FIG. 11 is a schematic structural diagram of a fourth embodiment of a hybrid automatic repeat request feedback device for downlink data according to an embodiment of the present application.
  • the technical solution provided by the present application is applied to an LTE network, and in the carrier aggregation technology, the PHY (Physical Downlink Control Channel) or the Enhanced Physical Downlink Control Channel (Enhanced Physical Downlink Control Channel) is further enhanced.
  • the feedback of the PDSCH transmission can further improve the dynamic HARQ codebook and improve the application range of the dynamic HARQ codebook.
  • FIG. 1 is a schematic diagram of an implementation environment of a hybrid automatic repeat request feedback method for downlink data according to an embodiment of the present application.
  • the hybrid automatic repeat request feedback method of the downlink data is applied to an LTE communication system.
  • each base station (Evolved Node B, eNB) communicates with each other and accesses a service gateway ( The Serving Gateway (S-GW) and the user equipment (UE) communicate by accessing the base station.
  • the terminal receives the downlink data sent by the base station, and sends the HARQ feedback codebook to the base station according to the downlink data, so that the base station can confirm whether the sent data is correctly received by the terminal.
  • S-GW Serving Gateway
  • UE user equipment
  • FIG. 2 is a flowchart of a first embodiment of a hybrid automatic repeat request feedback method for downlink data according to an embodiment of the present application.
  • the method is applied to a terminal, the party The method includes the following steps S201-S202.
  • step S201 downlink data is received from the base station.
  • the terminal receives downlink data from the base station, where the downlink data includes data on the PDCCH, the EPDCCH, and the PDSCH that are sent by the base station to the terminal.
  • the PDCCH or the EPDCCH may carry information indicating the downlink SPS activation, where the PDCCH or the EPDCCH corresponds to one PDSCH resource, and the PDCCH or the EPDCCH and the corresponding PDSCH are transmitted in one subframe; the PDCCH or the EPDCCH is further The PDCCH or the EPDCCH may not carry the PDSCH resource; the PDSCH may be the PDSCH transmitted on the configured periodic SPS subframe, and the PDSCH is not accompanied by the PDCCH.
  • the transmission together may be referred to as a PDSCH without a corresponding PDCCH or EPDCCH.
  • the PDSCH may also be a PDSCH accompanied by a PDCCH or an EPDCCH.
  • a terminal transmits HARQ feedback bits only for a PDSCH accompanied by a PDCCH or an EPDCCH and a PDCCH or an EPDCCH for indicating downlink SPS release.
  • the corresponding HARQ feedback bits are also generated for the PDSCH without the corresponding PDCCH or the EPDCCH transmitted on the periodic SPS subframe, thereby improving the applicable range of the dynamic HARQ feedback.
  • step S202 the hybrid automatic repeat request HARQ feedback codebook is sent to the base station, where the size of the HARQ feedback codebook is determined according to a first indication total value in the downlink data;
  • An indication total value is used to indicate a serving cell having a downlink shared channel PDSCH transmission in one subframe and a serving cell containing a physical downlink control channel PDCCH or an enhanced physical downlink control channel EPDCCH for indicating downlink semi-persistent scheduling SPS release Number, or, for indicating the total number of serving cell and subframe pairs including the PDSCH transmission or the PDCCH or EPDCCH indicating the downlink SPS release to the current subframe in at least one subframe; the HARQ feedback codebook A HARQ bit including a PDSCH transmission without a corresponding PDCCH or EPDCCH.
  • the HARQ feedback codebook refers to a set of ordered HARQ feedback bits; the size of the HARQ feedback codebook refers to the number of HARQ feedback bits.
  • the PDCCH or the EPDCCH data is parsed, and the DCI (Downlink Control Information) in the PDCCH or the EPDCCH data is obtained, where the DCI includes the first indication total value.
  • the LTE network is divided into FDD-LTE (Frequency Division Duplexing) and TDD-LTE (Time Division Duplexing), the DCI in different network modes is different, which will be separately described below.
  • the LTE network is FDD-LTE
  • the first indication total value is used to indicate a serving cell that includes a PDSCH transmission in one subframe and a service that includes a PDCCH or an EPDCCH for indicating downlink SPS release.
  • the total number of cells Different from the current technology, Total DAI (Total Downlink Assignment Indicator) is only used to indicate a serving cell with PDSCH transmission accompanied by PDCCH or EPDCCH and a serving cell containing PDCCH or EPDCCH for indicating downlink SPS release. The total number of.
  • Total DAI Total Downlink Assignment Indicator
  • the first indication total value indicates all serving cells that have a PDSCH transmission, and whether the PDSCH is accompanied by a PDCCH or an EPDCCH, the PDSCH transmission without the corresponding PDCCH or EPDCCH may be further statistically calculated according to the first indication total value.
  • the LTE network is TDD-LTE, and some uplink subframes need to feed back HARQ bits of multiple downlink subframes, and some uplink subframes only correspond to HARQ bits of one downlink subframe.
  • the first indication total value is used to indicate the total number of serving cell and subframe pairs in the at least one subframe that include the PDSCH transmission or the PDCCH or EPDCCH indicating the downlink SPS release in the current subframe. It can be understood that the at least one subframe may correspond to at least one downlink subframe in a TDD uplink subframe feedback window, where the one serving cell corresponds to one carrier.
  • Total DAI is only used to indicate the total number of PDSCH transmissions accompanied by PDCCH or EPDCCH or the serving cell and subframe pairs containing PDCCH or EPDCCH for indicating downlink SPS release.
  • the first indication total value indicates all serving cell and subframe pairs that include the PDSCH transmission, and whether the PDSCH is accompanied by the PDCCH or the EPDCCH, the PDSCH transmission without the corresponding PDCCH or EPDCCH may be further statistically calculated according to the first indication total value. .
  • the size of the HARQ feedback codebook is related to the first indication total value and the TM (Transmission Mode) of each carrier.
  • the TM of each carrier determines the maximum number of TBs (Transport Blocks) supported on the carrier, and is also the maximum number of CWs (Codewords) supported on the carrier, the HARQ feedback code.
  • the size of the present is the product of the first indicated total value and the maximum number of CWs among the aggregated plurality of carriers.
  • the maximum number of CWs in LTE is 2. That is, if at least one of the aggregated carriers supports a maximum of 2 CWs, the size of the HARQ feedback codebook is the first indication total value multiplied by 2, otherwise the size of the HARQ feedback codebook is First finger Show total value.
  • the DCI information including the first indication total value is carried in the DCI format for downlink assignment, for example, DCI format 1/1A/1B/1D/2/2A/2B/2C/2D.
  • the HARQ feedback codebook further includes PDSCH transmission without the corresponding PDCCH or EPDCCH.
  • HARQ bit It can be understood that the HARQ bit of the PDSCH transmission without the corresponding PDCCH or EPDCCH is generated by successfully decoding the PDSCH without the corresponding PDCCH or EPDCCH.
  • the HARQ bit of the PDSCH transmission without the corresponding PDCCH or EPDCCH is located at the last bit of the HARQ feedback codebook.
  • the DCI may further include a Counter DAI (Counter Downlink Assignment Indicator), and in the FDD-LTE mode, the Counter DAI is used. Indicates the number of accumulated cells in the subframe according to the direction in which the serving cell index value increases to the current serving cell, the serving cell with the downlink shared channel PDSCH of the PDCCH or EPDCCH, and the serving cell indicating the PDCCH or EPDCCH for downlink SPS release.
  • Counter DAI Counter Downlink Assignment Indicator
  • the Counter DAI is used to indicate that the PDCCH is accompanied by the direction in which the first serving cell index value increases and then the subframe sequence number increases in at least one subframe to the current serving cell and the current subframe. Or the cumulative number of PDSCH transmissions of the EPDCCH or the serving cell and subframe pairs of the PDCCH or EPDCCH indicating the downlink SPS release.
  • the HARQ bits of the PDSCH transmission of the EPDCCH are placed in the last bit of the HARQ feedback codebook.
  • the DCI information is carried in a DCI format for downlink assignment, such as DCI format 1/1A/1B/1D/2/2A/2B/2C/2D.
  • the HARQ bit of the PDSCH transmission without the corresponding PDCCH or EPDCCH is located at the first bit of the HARQ feedback codebook.
  • the Counter DAI it is first determined that there is no bit number of HARQ bits of the PDSCH transmission corresponding to the PDCCH or the EPDCCH, and it can be understood that the number of bits of the HARQ bit of the PDSCH transmission without the corresponding PDCCH or EPDCCH Corresponding to the maximum number of supported CWs in the aggregated multiple carriers; and then setting the HARQ bits of the PDSCH transmission without the corresponding PDCCH or EPDCCH Determining, in the first bit of the HARQ feedback codebook, the first bit of the HARQ feedback codebook according to the number of bits of the HARQ bit of the PDSCH transmission without the corresponding PDCCH or EPDCCH and the downlink allocation indication count value Counter DAI The position of the bit.
  • the effective HARQ bit of the PDSCH transmission without the corresponding PDCCH or EPDCCH is only 1 bit, and when the number of bits of the HARQ bit of the PDSCH transmission without the corresponding PDCCH or EPDCCH is 2 bits, the other HARQ bit needs to be used.
  • NACK which is a value of 0, as a padding bit.
  • the HARQ bit located in the last bit or the first bit is a valid HARQ bit of the PDSCH transmission without the corresponding PDCCH or EPDCCH.
  • the following is a description of the HARQ codebook in the first embodiment of the hybrid automatic retransmission request feedback method for downlink data according to the embodiment of the present application.
  • the FDD-LTE mode is taken as an example for description.
  • CCs Component Carriers
  • CC1-CC10 is used in the figure.
  • Each carrier unit is a carrier and is also a serving cell.
  • the value of CW in the figure indicates the number of TBs supported by the corresponding carrier TM, which is also the maximum number of codewords supported by the carrier.
  • the figure also includes four types of downlink data transmission, namely type 1, type 2, type 3, and type 4, which are represented by A, B, C, and D, respectively.
  • type 1 indicates a PDSCH transmitted on a downlink SPS subframe, the PDSCH has no corresponding PDCCH or EPDCCH; type 2 indicates PDSCH downlink data accompanied by PDCCH or EPDCCH; type 3 indicates no downlink data scheduling, that is, there is no Downlink data; Type 4 indicates that there is PDSCH downlink data accompanied by PDCCH or EPDCCH, but PDCCH or EPDCCH reception fails.
  • the first indication total value further counts the number of serving cells of Type 1.
  • the total number of serving cells that is, A, B, and D, including the downlink data of Type 1, Type 2, and Type 4 is 6, so the value of the first indication total value is also 6, and then according to the A total indication value determines the size of the HARQ codebook.
  • the Counter DAI and the first indication total value are expressed by only two bits, so it is necessary to perform a modulo operation on the Counter DAI and the first indication total value, and the modulo operation formula In order to reduce the original value M by 1 and then modulo 4 and add 1 (ie mod (M-1, 4) + 1).
  • the value of the HARQ bit corresponding to each carrier is determined by the decoding of the TB block in the downlink data of each carrier. If the decoding is successful, the bit is 1; if the decoding fails, the bit is 0. Also consider the HARQ feedback codebook size and the maximum supported in the aggregate carrier The number of CWs is related. In this example, since there are multiple carriers CC3, CC5, and CC10 supporting up to 2 TBs, each carrier with downlink scheduling corresponds to 2 HARQ bits. For a serving cell that supports only one CW, it is also necessary to fill the HARQ bits without TB decoding information accordingly.
  • the downlink data of one carrier can be determined by acquiring the Count DAI counting information, so it is determined that two HARQ bits corresponding to one carrier need to be filled.
  • the bits filled with the grid in the figure represent padding bits, and the other bits are valid HARQ bits.
  • the corresponding values are given exemplarily in Fig. 3.
  • the HARQ bit of the PDQ transmission without the corresponding PDCCH or EPDCCH determined according to the downlink data type 1 may be located at the last bit of the HARQ codebook, or may be located at the first bit of the HARQ codebook.
  • the HARQ bit of the PDSCH transmission without the corresponding PDCCH or EPDCCH is located at the last bit of the HARQ codebook, if the number of bits of the HARQ bit of the PDSCH transmission without the corresponding PDCCH or EPDCCH is 2 bits, the other bit needs to be padded to 0. As shown in FIG.
  • the last bit of the HARQ codebook is a valid HARQ bit of the PDSCH transmission without the corresponding PDCCH or EPDCCH, and the previous bit is a padding bit.
  • the HARQ bit of the PDSCH transmission without the corresponding PDCCH or EPDCCH is located in the first bit of the HARQ codebook, the HARQ bit of the first bit is a valid HARQ bit of the PDSCH transmission without the corresponding PDCCH or EPDCCH, if there is no corresponding PDCCH or
  • the number of bits of the HARQ bit of the PDSCH transmission of the EPDCCH is 2 bits, and the second bit is the padding bit.
  • the HARQ codebook in the first embodiment of the hybrid automatic retransmission request feedback method of the downlink data is taken as an example for description.
  • the aggregated multiple carriers use the same TDD uplink-downlink ratio, and there are three downlink subframes in the feedback window corresponding to one uplink subframe (the uplink subframe is not shown in the figure) .
  • three downlink subframes in the feedback window are represented by subframe 1, subframe 2, and subframe 3, respectively.
  • the figure also includes a plurality of CCs, represented by CC1-CC10, each carrier unit is a carrier and is also a serving cell.
  • Each rectangular block in the figure represents a serving cell and a subframe pair, that is, each rectangular block corresponds to one carrier and one subframe number.
  • the figure also includes four types of downlink data transmission, namely type 1, type 2, type 3, and type 4, which are represented by A, B, C, and D, respectively.
  • type 1 indicates a PDSCH transmitted on a downlink SPS subframe
  • the PDSCH has no corresponding PDCCH or EPDCCH
  • type 2 indicates a PDSCH downlink accompanied by a PDCCH or an EPDCCH.
  • Data; type 3 indicates no downlink data scheduling, that is, no downlink data; type 4 indicates that there is PDSCH downlink data accompanied by PDCCH or EPDCCH, but PDCCH or EPDCCH reception fails.
  • the Total DAI in the prior art, only the number of serving cells including the downlink data of Type 2 and Type 4 is counted.
  • the first indication total value further counts the number of serving cells of Type 1.
  • the number of serving cells including types 1, 2, and 4 is 3, so in subframe 1, the first indication has a total value of 3, and the Counter DAI is from 1 to 3;
  • the total value of the first indication is the total number of subframes 1 plus the total number of subframes 2, the value is 8, and the Counter DAI is from 4 to 8.
  • the number of serving cells including types 1, 2, and 4 is 3, and the first indication total value is the total number of subframes 1 plus the total number of subframes 2 plus the total number of subframes 3, The value is 11, and the Counter DAI is from 9 to 11.
  • the Counter DAI and the first indication total value are expressed by only two bits, so it is necessary to perform a modulo operation on the Counter DAI and the first indication total value, and the modulo operation formula In order to reduce the original value M by 1 and then modulo 4 and add 1 (ie mod (M-1, 4) + 1). Therefore, the first indication total value 3 of the corresponding subframe 1 in the figure is still calculated by 3; the first indication total value 8 of the subframe 2 is calculated as 4; the first indication total value 11 of the subframe 3 is The result of the calculation is 3.
  • the calculation principle of the value of Counter DAI in the figure is also the same.
  • the value of the valid HARQ bit is determined by the decoding of the TB block in the downlink data of each carrier. If the decoding is successful, the bit is 1; if the decoding fails, the bit is 0. In addition, considering that the size of the HARQ feedback codebook is related to the maximum number of CWs supported in the aggregated carrier, if at least one carrier of the aggregated carrier supports a maximum of two CWs, then for a serving cell supporting only one CW, no TB is needed. The HARQ bits of the decoded information are padded accordingly. When all the carriers in FIG. 4 support only one CW, there is no need to add extra bits for carriers supporting only 1 CW.
  • the downlink data of one carrier can be determined by obtaining the Count DAI counting information, so it is determined that one HARQ bit corresponding to one carrier needs to be filled. .
  • the bits filled with the lattice in the figure represent padding bits, and the other bits are valid HARQ bits.
  • the corresponding values are given by way of example in FIG.
  • the HARQ bit of the PDSCH transmission without the corresponding PDCCH or EPDCCH determined according to the downlink data type 1 may be located at the last bit of the HARQ codebook, or may be located at the first bit of the HARQ codebook. Only the example located at the last bit is given in FIG.
  • the HARQ feedback method for downlink data in the embodiment of the present application is based on the downlink data.
  • the first indication total value determines the size of the HARQ feedback codebook, and the HARQ feedback codebook includes the HARQ bits of the PDSCH transmission without the corresponding PDCCH or EPDCCH, so that the correct reception response can be made for the downlink transmission of the SPS, and the dynamic is improved.
  • the scope of application of the HARQ codebook is based on the downlink data.
  • FIG. 5 is a flowchart of a second embodiment of a hybrid automatic repeat request feedback method for downlink data according to an embodiment of the present application.
  • the method is applied to a base station, and the method includes the following steps S501-S502.
  • step S501 downlink data is transmitted to the terminal.
  • the downlink data includes a first indication total value, where the first indication total value is used to indicate a serving cell that includes a downlink shared channel PDSCH transmission in one subframe and a physical downlink control channel that is used to indicate downlink half-persistent scheduling SPS release.
  • the base station sends downlink data to the terminal, where the downlink data includes data on the PDCCH, the EPDCCH, and the PDSCH that are sent to the terminal.
  • step S502 the hybrid automatic repeat request HARQ feedback codebook returned by the terminal is received.
  • the size of the HARQ feedback codebook is determined according to the first indication total value; the HARQ feedback codebook includes a HARQ bit of a PDSCH transmission without a corresponding PDCCH or EPDCCH.
  • the terminal In this step, the terminal generates a HARQ feedback codebook according to the reception status of the downlink data.
  • the downlink data sent by the base station to the terminal includes a first indication total value, and the terminal determines the size of the HARQ feedback codebook according to the first indication total value.
  • the first indication total value is used to indicate a serving cell that includes a downlink shared channel PDSCH transmission in one subframe and a service that includes a physical downlink control channel PDCCH or an enhanced physical downlink control channel EPDCCH for indicating downlink semi-persistent scheduling SPS release.
  • the feedback codebook includes HARQ bits for PDSCH transmission without corresponding PDCCH or EPDCCH.
  • the HARQ feedback method of the downlink data in this embodiment is applied to the base station, and corresponds to the method applied to the terminal in the first embodiment shown in FIG. 2, and details are not described herein.
  • FIG. 6 is a diagram showing a hybrid automatic retransmission request of downlink data according to an embodiment of the present application.
  • step S601 downlink data is received from the base station.
  • step S602 the hybrid automatic repeat request HARQ feedback codebook is sent to the base station, where the size of the HARQ feedback codebook is determined according to the state of the SPS and the total value of the downlink allocation indication in the downlink data.
  • the HARQ feedback codebook includes HARQ bits of downlink shared channel PDSCH transmission without corresponding physical downlink control channel PDCCH or enhanced physical downlink control channel EPDCCH.
  • the DCI in the downlink data is acquired, and the DCI includes a Total DAI.
  • the Total DAI is used to indicate a serving cell with a PDSCH transmission of a PDCCH or an EPDCCH and a total number of serving cells including a PDCCH or an EPDCCH for indicating downlink SPS release; in the TDD-LTE mode
  • the Total DAI is used to indicate the total number of PDSCH transmissions accompanied by PDCCH or EPDCCH or the serving cell and subframe pairs containing the PDCCH or EPDCCH for indicating downlink SPS release.
  • the size of the HARQ feedback codebook is determined jointly according to the state of the SPS and the Total DAI.
  • the SPS process is divided into several steps, SPS configuration, SPS activation and SPS deactivation.
  • SPS activation is required to start SPS data transmission. After receiving the SPS activation message, it enters the SPS activation state. After receiving the SPS deactivation message after returning to the SPS deactivation state after the SPS activation state, the SPS data transmission cannot be performed at this time. Therefore, the state of the SPS can be divided into an active state and an inactive state. The state of the SPS can be judged by judging whether or not information for indicating SPS activation is received.
  • the size of the HARQ feedback codebook is equal to the size of the first codebook plus 1 bit, where the size of the first codebook is based on The total value of the downlink allocation indication is determined.
  • the size of the first codebook is determined according to the Total DAI. In addition, it is also required to determine whether it is in the SPS activation state. If the information indicating the SPS activation is received from the base station, it indicates that the SPS is in an active state, and the size of the HARQ feedback codebook is equal to the size of the first codebook plus one. Bit; otherwise, the size of the first codebook is used as the size of the HARQ feedback codebook.
  • the first parameter may be further configured according to the receiving condition of the information indicating the activation and deactivation of the SPS, where the first parameter is used to indicate the status of the SPS, or the PDSCH transmission indicating that there is no corresponding PDCCH or EPDCCH. a value of the HARQ bit; when receiving information indicating the SPS activation from the base station, the value of the first parameter is 1; when receiving information indicating the SPS deactivation from the base station, The value of the first parameter is 0.
  • the first parameter is used to indicate the state of the SPS, and when the terminal is in the active state, the parameter is equal to '1', otherwise the parameter is equal to '0'. Since the value of the HARQ bit of the PDSCH transmission without the corresponding PDCCH or EPDCCH is 1 bit in the SPS active state, and the other states are 0 bits, the first parameter may also represent the HARQ bit of the PDSCH transmission without the corresponding PDCCH or EPDCCH. Values.
  • the initial value of the first parameter is 0.
  • the value of the first parameter is set to zero.
  • the size of the HARQ feedback codebook is equal to the size of the first codebook plus 1 bit, wherein the size of the first codebook is determined according to the Total DAI.
  • the HARQ codebook is added with 1 bit on the original basis. It can be understood that the added 1 bit is the non-corresponding PDCCH or HARQ bits for PDSCH transmission of EPDCCH.
  • the HARQ bit of the PDSCH transmission without the corresponding PDCCH or EPDCCH is generated by successfully decoding the PDSCH without the corresponding PDCCH or EPDCCH.
  • the HARQ bit of the PDSCH transmission without the corresponding PDCCH or EPDCCH is set to NACK, that is, '0'.
  • the HARQ bit of the PDSCH transmission without the corresponding PDCCH or EPDCCH is located at the last bit of the HARQ feedback codebook.
  • the DCI may further include a Counter DAI. In the FDD-LTE mode, the Counter DAI is used to indicate that the value of the serving cell index is increased within one subframe.
  • the Counter DAI It is used to indicate that in the at least one subframe, according to the direction in which the first serving cell index value increases and then the subframe sequence number increases, to the current serving cell. And the current subframe, the PDSCH accompanying the PDCCH or EPDCCH or the cumulative number of serving cell and subframe pairs of the PDCCH or EPDCCH indicating the downlink SPS release.
  • the Counter DAI After obtaining the Counter DAI, determining, according to the Counter DAI, an order of each bit in the HARQ feedback codebook except for the HARQ bit of the PDSCH transmission without the corresponding PDCCH or EPDCCH, and the non-corresponding PDCCH or EPDCCH
  • the HARQ bits of the PDSCH transmission are placed in the last bit of the HARQ feedback codebook.
  • the HARQ bit of the PDSCH transmission without the corresponding PDCCH or EPDCCH is located at the first bit of the HARQ feedback codebook.
  • the number of bits of the HARQ bit of the PDSCH transmission without the corresponding PDCCH or EPDCCH is only 1 bit in the SPS activation state, and the HARQ bit of the PDSCH transmission without the corresponding PDCCH or EPDCCH is placed in the HARQ.
  • the hybrid automatic repeat request feedback method for downlink data can also be applied to TDD-LTE.
  • CCs Component Carriers
  • CC1-CC10 is used in the figure.
  • Each carrier unit is a carrier and is also a serving cell.
  • the figure also includes four types of downlink data transmission, which are represented by Type 1, Type 2, Type 3, and Type 4, respectively.
  • Type 1 indicates a PDSCH transmitted on a downlink SPS subframe, the PDSCH has no corresponding PDCCH or EPDCCH;
  • type 2 indicates PDSCH downlink data accompanied by PDCCH or EPDCCH;
  • type 3 indicates no scheduling, that is, no downlink data
  • Type 4 indicates that there is PDSCH downlink data accompanied by PDCCH or EPDCCH, but PDCCH or EPDCCH reception fails.
  • the Counter DAI and the Total DAI are the same as in the current technology.
  • the size of the HARQ feedback codebook is determined according to whether the information for indicating the SPS activation and the Total DAI are received, when received for When the information indicating the SPS activation is indicated, 1 bit is added based on the size of the first codebook determined according to the Total DAI.
  • the 1 bit is used to store HARQ bits of a PDSCH transmission without a corresponding PDCCH or EPDCCH. It can be understood that there is no corresponding The HARQ bits of the PDSCH transmission of the PDCCH or EPDCCH are obtained for carrier 1 decoding.
  • the HARQ bit of the PDSCH transmission without the corresponding PDCCH or EPDCCH determined according to the downlink data type 1 may be located at the last bit of the HARQ codebook, or may be located at the first bit of the HARQ codebook.
  • FIG. 7 only shows an example in which the HARQ bits of the PDSCH transmission without the corresponding PDCCH or EPDCCH can be located at the last bit of the HARQ codebook.
  • the HARQ feedback method of the downlink data in the embodiment of the present application includes the non-corresponding PDCCH in the HARQ feedback codebook by determining the size of the HARQ feedback codebook according to the reception status of the information indicating the SPS activation in the downlink data and the Total DAI. Or the HARQ bit of the PDSCH transmission of the EPDCCH, so that the correct reception response can be made for the downlink transmission of the SPS, and the applicable range of the dynamic HARQ codebook is improved.
  • FIG. 8 is a schematic structural diagram of a first embodiment of a hybrid automatic repeat request feedback device for downlink data according to an embodiment of the present disclosure.
  • the device may include:
  • the first receiving module 801 is configured to receive downlink data from the base station
  • the first sending module 802 is configured to send a hybrid automatic repeat request HARQ feedback codebook to the base station;
  • the size of the HARQ feedback codebook is determined according to a first indication total value in the downlink data.
  • the first indication total value is used to indicate a serving cell that includes a downlink shared channel PDSCH transmission in one subframe and a service that includes a physical downlink control channel PDCCH or an enhanced physical downlink control channel EPDCCH for indicating downlink semi-persistent scheduling SPS release.
  • the HARQ feedback codebook includes HARQ bits of PDSCH transmission without corresponding PDCCH or EPDCCH.
  • the HARQ bit of the PDSCH transmission without the corresponding PDCCH or EPDCCH is located at the last bit or the first bit of the HARQ feedback codebook.
  • the device of this embodiment may be a terminal.
  • the HARQ feedback apparatus of the downlink data in the embodiment of the present application determines the size of the HARQ feedback codebook according to the first indication total value in the downlink data, where the HARQ feedback codebook includes the PDSCH transmission without the corresponding PDCCH or EPDCCH.
  • the HARQ bit can be used to make a correct reception response for the downlink transmission of the SPS, and the application range of the dynamic HARQ codebook is improved.
  • FIG. 9 is a schematic structural diagram of a second embodiment of a hybrid automatic retransmission request feedback apparatus for downlink data according to an embodiment of the present application.
  • the device may include:
  • the second sending module 901 is configured to send downlink data to the terminal.
  • the second receiving module 902 is configured to receive a hybrid automatic repeat request HARQ feedback codebook returned by the terminal;
  • the downlink data includes a first indication total value, and the size of the HARQ feedback codebook is determined according to the first indication total value;
  • the first indication total value is used to indicate a serving cell that includes a downlink shared channel PDSCH transmission in one subframe and a service that includes a physical downlink control channel PDCCH or an enhanced physical downlink control channel EPDCCH for indicating downlink semi-persistent scheduling SPS release.
  • the HARQ feedback codebook includes HARQ bits of PDSCH transmission without corresponding PDCCH or EPDCCH.
  • the device of this embodiment may be a base station.
  • FIG. 10 is a schematic structural diagram of a third embodiment of a hybrid automatic repeat request feedback device for downlink data according to an embodiment of the present application.
  • the device may include:
  • the third receiving module 1001 is configured to receive downlink data from the base station
  • the third sending module 1002 is configured to send a hybrid automatic repeat request HARQ feedback codebook to the base station;
  • the size of the HARQ feedback codebook is determined according to a state of a semi-persistent scheduling SPS and a total value of a downlink allocation indication in the downlink data.
  • the HARQ feedback codebook includes no corresponding physical downlink control channel PDCCH or enhanced object
  • the size of the HARQ feedback codebook is equal to the size of the first codebook plus 1 bit;
  • the size of the first codebook is determined according to the total value of the downlink allocation indication.
  • the apparatus may further include a configuration module 1003, configured to configure a first parameter according to the receiving condition of the information indicating the semi-persistent scheduling SPS activation and deactivation, the first parameter a value indicating a state of the SPS, or a value indicating a HARQ bit of the PDSCH transmission without the corresponding PDCCH or EPDCCH; when receiving information indicating the SPS activation from the base station, the value of the first parameter is 1; When the information indicating the SPS deactivation is received from the base station, the value of the first parameter is zero.
  • the size of the HARQ feedback codebook is equal to the size of the first codebook plus 1 bit; wherein the size of the first codebook is based on The downlink allocation indicates a total value determined.
  • the HARQ bit of the PDSCH transmission without the corresponding PDCCH or EPDCCH is located at the last bit or the first bit of the HARQ feedback codebook.
  • the device of this embodiment may be a terminal.
  • the HARQ feedback apparatus of the downlink data in the embodiment of the present application includes the non-corresponding PDCCH in the HARQ feedback codebook by determining the size of the HARQ feedback codebook according to the reception status of the information indicating the SPS activation in the downlink data and the Total DAI. Or the HARQ bit of the PDSCH transmission of the EPDCCH, so that the correct reception response can be made for the downlink transmission of the SPS, and the applicable range of the dynamic HARQ codebook is improved.
  • FIG. 11 is a schematic structural diagram of a fourth embodiment of a hybrid automatic repeat request feedback device for downlink data according to an embodiment of the present application.
  • the device may be a terminal or a base station. It will be understood that Figure 11 does not show all of the elements of the device.
  • the apparatus can include a receiver 1101, a transmitter 1102, and a processor 1103.
  • the receiver 1101, the transmitter 1102, and the processor 1103 can communicate via a bus.
  • the bus may be a peripheral component interconnect (PCI) bus or an extended industry standard Extended industry standard architecture (EISA) bus.
  • PCI peripheral component interconnect
  • EISA Extended industry standard architecture
  • the bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 11, but it does not mean that there is only one bus or one type of bus.
  • the device may further include a memory 1104, which may include a volatile memory (English: volatile memory), such as random-access memory (abbreviation: RAM); the memory may also include non-easy Lossless memory (English: non-volatile memory), such as flash memory (English: flash memory), hard disk (English: hard disk drive, abbreviation: HDD) or solid state drive (English: solid-state drive, abbreviation: SSD)
  • a volatile memory such as random-access memory (abbreviation: RAM)
  • the memory may also include non-easy Lossless memory (English: non-volatile memory), such as flash memory (English: flash memory), hard disk (English: hard disk drive, abbreviation: HDD) or solid state drive (English: solid-state drive, abbreviation: SSD)
  • the memory 1104 may also include a combination of the above types of memories.
  • the processor 1103 may be a central processing unit (English: central processing unit, abbreviated: CPU), a network processor (English: network processor, abbreviated: NP) or a combination of a CPU and an NP.
  • CPU central processing unit
  • NP network processor
  • the processor 1103 may further include a hardware chip.
  • the hardware chip may be an application-specific integrated circuit (ASIC), a programmable logic device (abbreviated as PLD), or a combination thereof.
  • ASIC application-specific integrated circuit
  • PLD programmable logic device
  • the above PLD can be a complex programmable logic device (English: complex programmable logic device, abbreviation: CPLD), field-programmable gate array (English: field-programmable gate array, abbreviation: FPGA), general array logic (English: generic array Logic, abbreviation: GAL) or any combination thereof.
  • the memory 1104 is further configured to store program instructions.
  • the processor 1103 can invoke the program instructions to implement the method as shown in the embodiments of FIG. 2, FIG. 5, and FIG. 6 of the present application.
  • the receiver 1101 is configured to receive downlink data from a base station
  • the transmitter 1102 is configured to send a hybrid automatic repeat request HARQ feedback codebook to the base station;
  • the processor 1103 is configured to generate the HARQ feedback codebook.
  • the size of the HARQ feedback codebook is determined according to a first indication total value in the downlink data.
  • the first indication total value is used to indicate a serving cell that includes a downlink shared channel PDSCH transmission in one subframe and a physical downlink control channel that is used to indicate downlink half-persistent scheduling SPS release.
  • the HARQ feedback codebook includes HARQ bits of PDSCH transmission without corresponding PDCCH or EPDCCH.
  • the HARQ bit of the PDSCH transmission without the corresponding PDCCH or EPDCCH is located at the last bit or the first bit of the HARQ feedback codebook.
  • the transmitter 1102 is configured to send downlink data to the terminal.
  • the receiver 1101 is configured to receive a hybrid automatic repeat request HARQ feedback codebook returned by the terminal;
  • the downlink data includes a first indication total value, and the size of the HARQ feedback codebook is determined according to the first indication total value;
  • the first indication total value is used to indicate a serving cell that includes a downlink shared channel PDSCH transmission in one subframe and a service that includes a physical downlink control channel PDCCH or an enhanced physical downlink control channel EPDCCH for indicating downlink semi-persistent scheduling SPS release.
  • the HARQ feedback codebook includes HARQ bits of PDSCH transmission without corresponding PDCCH or EPDCCH.
  • the receiver 1101 is configured to receive downlink data from a base station
  • the transmitter 1102 is configured to send a hybrid automatic repeat request HARQ feedback codebook to the base station;
  • the processor 1103 is configured to generate the HARQ feedback codebook.
  • the size of the HARQ feedback codebook is determined according to a state of a semi-persistent scheduling SPS and a total value of a downlink allocation indication in the downlink data.
  • the HARQ feedback codebook includes HARQ bits of a downlink shared channel PDSCH transmission without a corresponding physical downlink control channel PDCCH or an enhanced physical downlink control channel EPDCCH.
  • the size of the HARQ feedback codebook is equal to the size of the first codebook plus 1 bit;
  • the size of the first codebook is determined according to the total value of the downlink allocation indication.
  • the processor 1103 configures a first parameter according to the receiving condition of the information indicating the semi-persistent scheduling SPS activation and deactivation, where the first parameter is used to indicate the status of the SPS, or indicates that there is no corresponding PDCCH or The value of the HARQ bit of the PDSCH transmission of the EPDCCH;
  • the value of the first parameter is 1;
  • the value of the first parameter is zero.
  • the size of the HARQ feedback codebook is equal to the size of the first codebook plus 1 bit;
  • the size of the first codebook is determined according to the total value of the downlink allocation indication.
  • the HARQ bit of the PDSCH transmission without the corresponding PDCCH or EPDCCH is located at the last bit or the first bit of the HARQ feedback codebook.
  • the HARQ feedback device of the downlink data in the embodiment of the present application determines the size of the HARQ feedback codebook according to the downlink data, where the HARQ feedback codebook includes the HARQ bit of the PDSCH transmission without the corresponding PDCCH or EPDCCH, thereby being capable of targeting the SPS.
  • the downlink transmission makes the correct reception response and improves the application range of the dynamic HARQ codebook.
  • the embodiment of the present application further provides a computer storage medium, where the computer storage medium can store a program, and the program includes the steps of the method shown in FIG. 2, FIG. 5, and FIG.
  • Computer readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one location to another.
  • a storage medium may be any available media that can be accessed by a computer.
  • the computer readable medium may include a random access memory (RAM), a read-only memory (ROM), and an electrically erasable programmable read-only memory (Electrically Erasable Programmable).
  • EEPROM Electrically Error Read-Only Memory
  • CD-ROM Compact Disc Read-Only Memory
  • Any connection may suitably be a computer readable medium.
  • the software is transmitted from a website, server, or other remote source using coaxial cable, fiber optic cable, twisted pair, Digital Subscriber Line (DSL), or wireless technologies such as infrared, radio, and microwave, Then coaxial cable, fiber optic cable, twisted pair, DSL or wireless technologies such as infrared, wireless and microwave are included in the fixing of the associated medium.
  • DSL Digital Subscriber Line
  • a disk and a disc include a compact disc (CD), a laser disc, a compact disc, a digital versatile disc (DVD), a floppy disc, and a Blu-ray disc, wherein the disc is usually magnetically copied, and the disc is The laser is used to optically replicate the data. Combinations of the above should also be included within the scope of the computer readable media.

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Abstract

本申请公开了一种下行数据的混合式自动重传请求反馈方法以及装置，所述方法包括：从基站接收下行数据；向所述基站发送混合式自动重传请求HARQ反馈码本；其中，所述HARQ反馈码本的大小是根据所述下行数据中的第一指示总值确定的；所述第一指示总值用于表示一个子帧内含有下行共享信道PDSCH传输的服务小区和含有用于指示下行半持续调度SPS释放的物理下行控制信道PDCCH或增强的物理下行控制信道EPDCCH的服务小区的总个数，或者，用于表示至少一个子帧内，到当前子帧含有PDSCH传输或含有用于指示下行SPS释放的PDCCH或EPDCCH的服务小区和子帧对的总个数；所述HARQ反馈码本包括无对应PDCCH或EPDCCH的PDSCH传输的HARQ比特。采用本申请实施例，能够提高HARQ码本的适用范围。

Description

下行数据的混合式自动重传请求反馈方法以及装置 技术领域
本申请涉及通信技术领域，尤其涉及一种下行数据的混合式自动重传请求反馈方法以及装置。
背景技术
LTE(Long Term Evolution，长期演进)作为新一代通信技术标准，应用日益普遍。在LTE系统中采用HARQ(Hybrid Automatic Repeat Request，混合式自动重传请求)技术来保证基站和用户终端之间数据的正确发送与接收。HARQ为ARQ(Automatic Repeat Request，自动重传请求)和FEC(Forward Error Correction，前向纠错)的混合，即通过自动重传请求协议和前向纠错技术保证数据的可靠传输。当数据包到达接收端时，对其进行检错，若接收正确，返回确认(ACK)信号，用比特‘0’表示，若接收错误则返回不确认(NACK)信号，用比特‘1’表示。这里把ACK和NACK信号统称为HARQ比特，也可以称为HARQ反馈比特、HARQ响应。当发端收到ACK信号，可以发送新的数据，否则可能需要重新发送上次传输的数据包。
下行HARQ是指终端需要对基站下发的数据进行是否正确接收的确认流程，当前多载波的载波聚合技术中，为了减少HARQ反馈的码本大小，通常采用动态HARQ码本。然而，当下行传输包含在配置的周期性SPS(Semi-Persistent Scheduling，半持续调度)子帧上发送的PDSCH(Physical Downlink Shared Channel，物理下行共享信道)时，当前的动态HARQ码本无法对SPS的下行传输作出是否正确接收的回应。因此，如何进一步完善动态HARQ码本，提高动态HARQ码本的适用范围，是现阶段亟需解决的问题。
发明内容
本申请实施例提供了一种下行数据的混合式自动重传请求反馈方法以及装置，能够针对SPS的下行传输作出正确的接收回应，提高动态HARQ的适用范围。
第一方面，提供了一种下行数据的混合式自动重传请求反馈方法，包括：
从基站接收下行数据；向所述基站发送混合式自动重传请求HARQ反馈 码本；其中，所述HARQ反馈码本的大小是根据所述下行数据中的第一指示总值确定的；所述第一指示总值用于表示一个子帧内含有下行共享信道PDSCH传输的服务小区和含有用于指示下行半持续调度SPS释放的物理下行控制信道PDCCH或增强的物理下行控制信道EPDCCH的服务小区的总个数，或者，用于表示至少一个子帧内，到当前子帧含有PDSCH传输或含有用于指示下行SPS释放的PDCCH或EPDCCH的服务小区和子帧对的总个数；所述HARQ反馈码本包括无对应PDCCH或EPDCCH的PDSCH传输的HARQ比特。
通过根据下行数据中的第一指示总值确定HARQ反馈码本的大小，所述HARQ反馈码本中包括了无对应PDCCH或EPDCCH的PDSCH传输的HARQ比特，从而能够针对SPS的下行传输作出正确的接收回应，提高了动态HARQ码本的适用范围。
结合第一方面，在第一种可能的实现方式中，所述无对应PDCCH或EPDCCH的PDSCH传输的HARQ比特位于所述HARQ反馈码本的最后一位或第一位。
第二方面，提供了一种下行数据的混合式自动重传请求反馈方法，包括：
向终端发送下行数据；接收终端返回的混合式自动重传请求HARQ反馈码本；其中，所述下行数据包括第一指示总值，所述HARQ反馈码本的大小是根据所述第一指示总值确定的；所述第一指示总值用于表示一个子帧内含有下行共享信道PDSCH传输的服务小区和含有用于指示下行半持续调度SPS释放的物理下行控制信道PDCCH或增强的物理下行控制信道EPDCCH的服务小区的总个数，或者，用于表示至少一个子帧内，到当前子帧含有PDSCH传输或含有用于指示下行SPS释放的PDCCH或EPDCCH的服务小区和子帧对的总个数；所述HARQ反馈码本包括无对应PDCCH或EPDCCH的PDSCH传输的HARQ比特。
通过根据下行数据中的第一指示总值确定HARQ反馈码本的大小，所述HARQ反馈码本中包括了无对应PDCCH或EPDCCH的PDSCH传输的HARQ比特，从而能够针对SPS的下行传输作出正确的接收回应，提高了动态HARQ码本的适用范围。
第三方面，提供了一种下行数据的混合式自动重传请求反馈方法，包括：
从基站接收下行数据；向所述基站发送混合式自动重传请求HARQ反馈码本；其中，所述HARQ反馈码本的大小是根据半持续调度SPS的状态以及所述下行数据中的下行分配指示总数值确定的；所述HARQ反馈码本包括无对应物理下行控制信道PDCCH或增强的物理下行控制信道EPDCCH的下行共享信道PDSCH传输的HARQ比特。
通过根据下行数据中的SPS的状态以及Total DAI确定HARQ反馈码本的大小，所述HARQ反馈码本中包括了无对应PDCCH或EPDCCH的PDSCH传输的HARQ比特，从而能够针对SPS的下行传输作出正确的接收回应，提高了动态HARQ码本的适用范围。
结合第三方面，在第一种可能的实现方式中，当所述SPS的状态处于激活状态时，所述HARQ反馈码本的大小等于第一码本的大小加1比特；其中，所述第一码本的大小是根据所述下行分配指示总数值确定的。
结合第三方面，在第二种可能的实现方式中，根据指示半持续调度SPS激活和去激活的信息的接收情况配置第一参数，所述第一参数用于表示SPS的状态，或表示无对应PDCCH或EPDCCH的PDSCH传输的HARQ比特的个数值；当从所述基站接收到用于指示SPS激活的信息时，所述第一参数的值为1；当从所述基站接收到用于指示SPS去激活的信息时，所述第一参数的值为0。
结合第二种可能的实现方式，在第三种可能的实现方式中，当所述第一参数的值大于0时，所述HARQ反馈码本的大小等于第一码本的大小加1比特；其中，所述第一码本的大小是根据所述下行分配指示总值确定的。
结合第三方面，第一种、第二种以及第三种可能的实现方式，在第四种可能的实现方式中，所述无对应PDCCH或EPDCCH的PDSCH传输的HARQ比特位于所述HARQ反馈码本的最后一位或第一位。
第四方面，提供了一种下行数据的混合式自动重传请求反馈装置，用于执行上述第一方面中的方法，该装置可以是终端。
第五方面，提供了一种下行数据的混合式自动重传请求反馈装置，用于执行上述第二方面中的方法，该装置可以是基站。
第六方面，提供了一种下行数据的混合式自动重传请求反馈装置，用于执行上述第三方面中的方法，该装置可以是终端。
第七方面，提供了一种下行数据的混合式自动重传请求反馈装置，包括接收器、发送器以及处理器，用于执行上述第一方面中的方法。
第八方面，提供了一种下行数据的混合式自动重传请求反馈装置，包括接收器、发送器以及处理器，用于执行上述第二方面中的方法。
第九方面，提供了一种下行数据的混合式自动重传请求反馈装置，包括接收器、发送器以及处理器，用于执行上述第三方面中的方法。
第十方面，提供了一种计算机存储介质，该计算机存储介质中存储有程序代码，该程序代码用于执行上述第一方面中的方法。
第十一方面，提供了一种计算机存储介质，该计算机存储介质中存储有程序代码，该程序代码用于执行上述第二方面中的方法。
第十二方面，提供了一种计算机存储介质，该计算机存储介质中存储有程序代码，该程序代码用于执行上述第三方面中的方法。
本申请提供的技术方案，通过根据下行数据确定HARQ反馈码本的大小，所述HARQ反馈码本中包括了无对应PDCCH或EPDCCH的PDSCH传输的HARQ比特，从而能够针对SPS的下行传输作出正确的接收回应，提高了动态HARQ码本的适用范围。
附图说明
为了更清楚地说明本申请实施例或现有技术中的技术方案，下面将对实施例中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本申请实施例提供的一种下行数据的混合式自动重传请求反馈方法的实施环境图。
图2为本申请实施例提供的一种下行数据的混合式自动重传请求反馈方法的第一实施例的流程图。
图3为本申请实施例提供的一种下行数据的混合式自动重传请求反馈方法第一实施例中生成HARQ码本的示意图。
图4为本申请实施例提供的另一种下行数据的混合式自动重传请求反馈方法第一实施例中生成HARQ码本的示意图。
图5所示为本申请实施例提供的一种下行数据的混合式自动重传请求反馈方法的第二实施例的流程图。
图6所示为本申请实施例提供的一种下行数据的混合式自动重传请求反馈方法的第三实施例的流程图。
图7为本申请实施例提供的一种下行数据的混合式自动重传请求反馈方法第三实施例中生成HARQ码本的示意图。
图8所示为本申请实施例提供的一种下行数据的混合式自动重传请求反馈装置第一实施例的结构示意图。
图9所示为本申请实施例提供的一种下行数据的混合式自动重传请求反馈装置第二实施例的结构示意图。
图10所示为本申请实施例提供的一种下行数据的混合式自动重传请求反馈装置第三实施例的结构示意图。
图11所示为本申请实施例提供的一种下行数据的混合式自动重传请求反馈装置第四实施例的结构示意图。
具体实施方式
本申请提供的技术方案应用于LTE网络，在载波聚合技术中，通过进一步的对无对应PDCCH(Physical Downlink Control Channel，物理下行控制信道)或EPDCCH(Enhanced Physical Downlink Control Channel，增强的物理下行控制信道)的PDSCH传输进行反馈，能够进一步完善动态HARQ码本，提高动态HARQ码本的适用范围。
图1所示为本申请实施例提供的一种下行数据的混合式自动重传请求反馈方法的实施环境图。如图所示，所述下行数据的混合式自动重传请求反馈方法应用于LTE通信系统，在LTE通信系统中，各个基站(Evolved Node B，eNB)之间通信连接，并接入服务网关(Serving Gateway，S-GW)，终端(user equipment，UE)通过接入基站，实现通信。终端接收基站下发的下行数据，并根据所述下行数据向基站发送HARQ反馈码本，从而便于基站确认所述下发的数据是否被终端正确的接收。
图2所示为本申请实施例提供的一种下行数据的混合式自动重传请求反馈方法的第一实施例的流程图。在本实施方式中，该方法应用于终端上，该方 法包括以下步骤S201-S202。
在步骤S201中，从基站接收下行数据。
本步骤中，终端从基站接收下行数据，所述下行数据包括基站下发给终端的PDCCH、EPDCCH以及PDSCH上的数据。其中，所述PDCCH或EPDCCH可以携带用于指示下行SPS激活的信息，此时该PDCCH或EPDCCH对应一个PDSCH资源，该PDCCH或EPDCCH与对应的PDSCH在一个子帧中传输；所述PDCCH或EPDCCH还可以携带用于指示下行SPS释放的信息，此时该PDCCH或EPDCCH并不指定PDSCH资源；所述PDSCH可以为在配置的周期性SPS子帧上发送的PDSCH，此时该PDSCH并不伴随着PDCCH一起传输，可以称为无对应PDCCH或EPDCCH的PDSCH。所述PDSCH还可以为伴随有PDCCH或EPDCCH的PDSCH。当前技术中，终端只会对伴随有PDCCH或EPDCCH的PDSCH和用于指示下行SPS释放的PDCCH或EPDCCH发送HARQ反馈比特。在本实施例中，进一步的对周期性SPS子帧上发送的无对应PDCCH或EPDCCH的PDSCH也产生对应的HARQ反馈比特，从而提高了动态HARQ反馈的适用范围。
在步骤S202中，向所述基站发送混合式自动重传请求HARQ反馈码本，其中，所述HARQ反馈码本的大小是根据所述下行数据中的第一指示总值确定的；所述第一指示总值用于表示一个子帧内含有下行共享信道PDSCH传输的服务小区和含有用于指示下行半持续调度SPS释放的物理下行控制信道PDCCH或增强的物理下行控制信道EPDCCH的服务小区的总个数，或者，用于表示至少一个子帧内，到当前子帧含有PDSCH传输或含有用于指示下行SPS释放的PDCCH或EPDCCH的服务小区和子帧对的总个数；所述HARQ反馈码本包括无对应PDCCH或EPDCCH的PDSCH传输的HARQ比特。
需要说明的是，HARQ反馈码本指的是一组有次序的HARQ反馈比特的集合；HARQ反馈码本的大小指的是HARQ反馈比特的个数。本步骤中，在从基站接收到下行数据了之后，解析其中PDCCH或EPDCCH数据，获取所述PDCCH或EPDCCH数据中的DCI(Downlink Control Information，下行控制信息)，所述DCI包括第一指示总值。由于LTE网络分为FDD-LTE(Frequency Division Duplexing，频分双工)以及TDD-LTE(Time Division Duplexing，时分双工)，不同网络模式下的DCI有所区别，下面分别进行说明。
在一种实施方式中，所述LTE网络为FDD-LTE，所述第一指示总值用于表示一个子帧内含有PDSCH传输的服务小区和含有用于指示下行SPS释放的PDCCH或EPDCCH的服务小区的总个数。不同于当前技术中的Total DAI(Total Downlink Assignment Indicator，下行分配指示总数值)只用于表示伴随有PDCCH或者EPDCCH的PDSCH传输的服务小区和含有用于指示下行SPS释放的PDCCH或EPDCCH的服务小区的总个数。所述第一指示总值表示的是所有含有PDSCH传输的服务小区，不管该PDSCH是否伴随有PDCCH或EPDCCH，因此根据第一指示总值可以进一步的统计无对应PDCCH或EPDCCH的PDSCH传输。
在另一种实施方式中，所述LTE网络为TDD-LTE，由于此时有的上行子帧需要反馈多个下行子帧的HARQ比特，有的上行子帧只对应一个下行子帧的HARQ比特，此时所述第一指示总值用于表示至少一个子帧内，到当前子帧含有PDSCH传输或含有用于指示下行SPS释放的PDCCH或EPDCCH的服务小区和子帧对的总个数。可以理解的是，所述至少一个子帧可以对应一个TDD上行子帧反馈窗口内的至少一个下行子帧，所述一个服务小区对应于一个载波。不同于当前技术中的Total DAI只用于表示伴随有PDCCH或者EPDCCH的PDSCH传输或含有用于指示下行SPS释放的PDCCH或EPDCCH的服务小区和子帧对的总个数。所述第一指示总值表示的是所有含有PDSCH传输的服务小区和子帧对，不管该PDSCH是否伴随有PDCCH或EPDCCH，因此根据第一指示总值可以进一步的统计无对应PDCCH或EPDCCH的PDSCH传输。
在获取了所述第一指示总值之后，根据所述第一指示总值确定HARQ反馈码本的大小。本领域技术人员可以理解的是，所述HARQ反馈码本的大小是根据第一指示总值以及每个载波的TM(Transmission Mode，发送模式)有关。其中，每个载波的TM决定了该载波上支持的最大的TB(Transport Block，传输块)个数，也是该载波上支持的最大的CW(CodeWord，码字)个数，所述HARQ反馈码本的大小为所述第一指示总值与聚合的多个载波中所述最大的CW个数的乘积。在LTE中最大的CW个数为2。也就是说，如果聚合的多个载波中如果至少有一个载波支持最大2个CW，那么HARQ反馈码本的大小为所述第一指示总值乘以2，否则HARQ反馈码本的大小为所述第一指 示总值。
在本步骤中，包含有第一指示总值的DCI信息承载在用于下行指派的DCI格式中，例如DCI格式1/1A/1B/1D/2/2A/2B/2C/2D中。
在本步骤中，由于第一指示总值进一步的统计了无对应PDCCH或EPDCCH的PDSCH传输的服务小区的个数，所述HARQ反馈码本中也进一步的包括无对应PDCCH或EPDCCH的PDSCH传输的HARQ比特。可以理解的是，所述无对应PDCCH或EPDCCH的PDSCH传输的HARQ比特是通过对无对应PDCCH或EPDCCH的PDSCH解码成功与否而生成。
在一种实施方式中，所述无对应PDCCH或EPDCCH的PDSCH传输的HARQ比特位于所述HARQ反馈码本的最后一位。可以理解的是，在获取所述下行数据中的DCI时，所述DCI可进一步包括Counter DAI(Counter Downlink Assignment Indicator，下行分配指示计数值)，在FDD-LTE模式下，所述Counter DAI用于表示一个子帧内，按照服务小区索引值增加的方向到当前服务小区，伴随有PDCCH或EPDCCH的下行共享信道PDSCH的服务小区和用于指示下行SPS释放的PDCCH或EPDCCH的服务小区的累积个数；在TDD-LTE模式下，所述Counter DAI用于表示至少一个子帧内，按照先服务小区索引值增加的方向然后子帧序号增加的方向，到当前服务小区和当前子帧，伴随有PDCCH或EPDCCH的PDSCH传输或用于指示下行SPS释放的PDCCH或EPDCCH的服务小区和子帧对的累积个数。在获取到Counter DAI之后，根据所述Counter DAI值确定所述HARQ反馈码本中除了所述无对应PDCCH或EPDCCH的PDSCH传输的HARQ比特外其他各个比特的顺序，并将所述无对应PDCCH或EPDCCH的PDSCH传输的HARQ比特置于所述HARQ反馈码本的最后一位。所述DCI信息承载在用于下行指派的DCI格式中，例如DCI格式1/1A/1B/1D/2/2A/2B/2C/2D中。
在另一种实施方式中，所述无对应PDCCH或EPDCCH的PDSCH传输的HARQ比特位于所述HARQ反馈码本的第一位。本实施方式中，在获取到Counter DAI之后，首先判断无对应PDCCH或EPDCCH的PDSCH传输的HARQ比特的位数，可以理解的是，所述无对应PDCCH或EPDCCH的PDSCH传输的HARQ比特的位数与聚合的多个载波中支持的最大的CW个数有关；再将有效的所述无对应PDCCH或EPDCCH的PDSCH传输的HARQ比特置 于所述HARQ反馈码本的第一位，然后根据所述无对应PDCCH或EPDCCH的PDSCH传输的HARQ比特的位数以及所述下行分配指示计数值Counter DAI确定所述HARQ反馈码本中其他各个比特的位置。
需要说明的是，有效的无对应PDCCH或EPDCCH的PDSCH传输的HARQ比特仅为1位，当无对应PDCCH或EPDCCH的PDSCH传输的HARQ比特的位数为2位时，需要将另1位HARQ比特置为NACK，即0值，作为填充比特。其中，位于最后一位或第一位的HARQ比特是有效的无对应PDCCH或EPDCCH的PDSCH传输的HARQ比特。
下面结合图3进行说明，图3所示为本申请实施例提供的一种下行数据的混合式自动重传请求反馈方法第一实施例中生成HARQ码本的示意图。在本实施例中，以FDD-LTE模式为例进行说明。
如图3所示，在一个子帧中，包括了多个CC(Component Carrier，载波单元)，图中用CC1-CC10表示，每个载波单元就是一个载波，也是一个服务小区。图中CW的值表示对应载波TM所支持的TB个数，也是该载波支持的最大码字个数。图中还包括了四种类型的下行数据传输，分别为类型1、类型2、类型3、类型4，在图中分别用A、B、C、D进行表示。其中，类型1表示在下行SPS子帧上发送的PDSCH，该PDSCH无对应的PDCCH或EPDCCH；类型2表示伴随有PDCCH或EPDCCH的PDSCH下行数据；类型3表示无下行数据调度，也就是说没有任何下行数据；类型4表示有伴随有PDCCH或EPDCCH的PDSCH下行数据，但PDCCH或EPDCCH接收失败。相比于现有技术中的Total DAI只统计含有类型2和类型4的下行数据的服务小区数量，在本实施例中，第一指示总值进一步的对类型1的服务小区数量进行统计。如图中所示，含有类型1、类型2和类型4的下行数据的服务小区即A、B、D的总个数为6，因此，第一指示总值的数值也为6，再根据第一指示总值确定HARQ码本的大小。可以理解的是，考虑到DCI中比特的限制，Counter DAI以及第一指示总值只用两个比特来表达，因此需要对Counter DAI以及第一指示总值进行取模运算，该取模运算公式为将原始值M先减1再对4取模再加1(即mod(M-1,4)+1)得到。每个载波对应的HARQ比特的值由对各载波下行数据中TB块的解码情况来确定，若解码成功，则该比特位为1；若解码失败，则该比特位为0。另外考虑到HARQ反馈码本大小和聚合载波中最大支持的 CW个数有关，该示例中由于有多个载波CC3、CC5和CC10最多支持2个TB，那么每个有下行调度的载波都对应2个HARQ比特。对于只支持一个CW的服务小区，还需要对无TB解码信息的HARQ比特位进行相应的填充。另外对于类型4的下行传输，由于其PDCCH或EPDCCH接收失败，通过对Counter DAI计数信息的获取，可以判断丢失了一个载波的下行数据，因此判断需要填充对应一个载波的2个HARQ比特。在图中用网格填充的比特表示填充比特，其他比特为有效的HARQ比特。图3中示例性的给出了相应的数值。
在不同的实施方式中，根据下行数据类型1确定的无对应PDCCH或EPDCCH的PDSCH传输的HARQ比特即HARQ比特可以位于HARQ码本的最后一位，也可以位于HARQ码本的第一位。当无对应PDCCH或EPDCCH的PDSCH传输的HARQ比特位于HARQ码本的最后一位时，若无对应PDCCH或EPDCCH的PDSCH传输的HARQ比特的位数为2位，则需要将另外一位填充为0，如图3所示，HARQ码本的最后一位为有效的无对应PDCCH或EPDCCH的PDSCH传输的HARQ比特，前一位为填充位。当无对应PDCCH或EPDCCH的PDSCH传输的HARQ比特位于HARQ码本的第一位时，第一位的HARQ比特是有效的无对应PDCCH或EPDCCH的PDSCH传输的HARQ比特，若此时无对应PDCCH或EPDCCH的PDSCH传输的HARQ比特的位数为2位，则第二位为填充位。
下面结合图4进行说明，图4所示为本申请实施例提供的一种下行数据的混合式自动重传请求反馈方法第一实施例中生成HARQ码本的示意图。在本实施例中，以TDD-LTE模式为例进行说明。
如图4所示，聚合的多个载波采用相同的TDD上下行配比，所示对应一个上行子帧的反馈窗口内有3个下行子帧(所示上行子帧没有在图中表示出来)。图中分别用子帧1、子帧2、子帧3表示反馈窗口内的3个下行子帧。图中还包括多个CC，用CC1-CC10表示，每个载波单元就是一个载波，也是一个服务小区。图中的每一个矩形块表示一个服务小区和子帧对，即每一个矩形块对应一个载波和一个子帧序号。图中还包括了四种类型的下行数据传输，分别为类型1、类型2、类型3、类型4，在图中分别用A、B、C、D进行表示。其中，类型1表示在下行SPS子帧上发送的PDSCH，该PDSCH无对应的PDCCH或EPDCCH；类型2表示伴随有PDCCH或EPDCCH的PDSCH下行 数据；类型3表示无下行数据调度，也就是说没有任何下行数据；类型4表示有伴随有PDCCH或EPDCCH的PDSCH下行数据，但PDCCH或EPDCCH接收失败。相比于现有技术中的Total DAI只统计含有类型2和类型4的下行数据的服务小区数量，在本实施例中，第一指示总值进一步的对类型1的服务小区数量进行统计。如图所示，在子帧1中，包括类型1、2和4的服务小区数量为3，因此在子帧1中，第一指示总值为3，Counter DAI为从1到3；在子帧2中，包括类型1、2和4的服务小区数量为5，此时第一指示总值为子帧1的总数加上子帧2的总数，值为8，Counter DAI为从4到8；在子帧3中，包括类型1、2和4的服务小区数量为3，此时第一指示总值为子帧1的总数加上子帧2的总数再加上子帧3的总数，值为11，Counter DAI为从9到11。可以理解的是，考虑到DCI中比特的限制，Counter DAI以及第一指示总值只用两个比特来表达，因此需要对Counter DAI以及第一指示总值进行取模运算，该取模运算公式为将原始值M先减1再对4取模再加1(即mod(M-1,4)+1)得到。因此图中对应子帧1的第一指示总值3经过计算仍然是3；子帧2的的第一指示总值8经过计算的结果是4；子帧3的的第一指示总值11经过计算的结果是3。图中Counter DAI的值计算原理也相同。有效的HARQ比特的值由对各载波下行数据中TB块的解码情况来确定，若解码成功，则该比特位为1；若解码失败，则该比特位为0。另外考虑到HARQ反馈码本大小和聚合载波中最大支持的CW个数有关，若聚合的载波中至少有一个载波最大支持2个CW，那么对于只支持一个CW的服务小区，还需要对无TB解码信息的HARQ比特位进行相应的填充，当图4中所有载波都只支持最大1个CW，因此对于只支持1个CW的载波无需额外填充比特。对于子帧2中类型4的下行传输，由于其PDCCH或EPDCCH接收失败，通过对Counter DAI计数信息的获取，可以判断丢失了一个载波的下行数据，因此判断需要填充对应一个载波的1个HARQ比特。在图中用格子填充的比特表示填充比特，其他比特为有效的HARQ比特。图4中示例性的给出了相应的数值。在不同的实施方式中，根据下行数据类型1确定的无对应PDCCH或EPDCCH的PDSCH传输的HARQ比特可以位于HARQ码本的最后一位，也可以位于HARQ码本的第一位。图4中仅给出了位于最后一位的示例。
本申请实施例中的下行数据的HARQ反馈方法，通过根据下行数据中的 第一指示总值确定HARQ反馈码本的大小，所述HARQ反馈码本中包括了无对应PDCCH或EPDCCH的PDSCH传输的HARQ比特，从而能够针对SPS的下行传输作出正确的接收回应，提高了动态HARQ码本的适用范围。
图5所示为本申请实施例提供的一种下行数据的混合式自动重传请求反馈方法的第二实施例的流程图。在本实施方式中，该方法应用于基站上，该方法包括以下步骤S501-S502。
在步骤S501中，向终端发送下行数据。所述下行数据包括第一指示总值，所述第一指示总值用于表示一个子帧内含有下行共享信道PDSCH传输的服务小区和含有用于指示下行半持续调度SPS释放的物理下行控制信道PDCCH或增强的物理下行控制信道EPDCCH的服务小区的总个数，或者，用于表示至少一个子帧内，到当前子帧含有PDSCH传输或含有用于指示下行SPS释放的PDCCH或EPDCCH的服务小区和子帧对的总个数。
本步骤中，基站向终端发送下行数据，所述下行数据包括下发给终端的PDCCH、EPDCCH以及PDSCH上的数据。
在步骤S502中，接收终端返回的混合式自动重传请求HARQ反馈码本。其中，所述HARQ反馈码本的大小是根据所述第一指示总值确定的；所述HARQ反馈码本包括无对应PDCCH或EPDCCH的PDSCH传输的HARQ比特。
本步骤中，终端根据下行数据的接收情况生成HARQ反馈码本。其中，基站发送给终端的下行数据中包括第一指示总值，终端根据所述第一指示总值确定HARQ反馈码本的大小。所述第一指示总值用于表示一个子帧内含有下行共享信道PDSCH传输的服务小区和含有用于指示下行半持续调度SPS释放的物理下行控制信道PDCCH或增强的物理下行控制信道EPDCCH的服务小区的总个数，或者，用于表示至少一个子帧内，到当前子帧含有PDSCH传输或含有用于指示下行SPS释放的PDCCH或EPDCCH的服务小区和子帧对的总个数；所述HARQ反馈码本包括无对应PDCCH或EPDCCH的PDSCH传输的HARQ比特。
可以理解的是，本实施例中的下行数据的HARQ反馈方法应用于基站，与图2所示第一实施例中应用于终端的方法对应，在此不赘述。
图6所示为本申请实施例提供的一种下行数据的混合式自动重传请求反 馈方法的第三实施例的流程图。在本实施方式中，该方法应用于终端上，该方法包括以下步骤S601-S602。
在步骤S601中，从基站接收下行数据。
在步骤S602中，向所述基站发送混合式自动重传请求HARQ反馈码本，其中，所述HARQ反馈码本的大小是根据SPS的状态以及所述下行数据中的下行分配指示总数值确定的；所述HARQ反馈码本包括无对应物理下行控制信道PDCCH或增强的物理下行控制信道EPDCCH的下行共享信道PDSCH传输的HARQ比特。
本步骤中，在接收到下行数据之后，获取所述下行数据中的DCI，所述DCI包括Total DAI。在FDD-LTE模式下，所述Total DAI用于表示伴随有PDCCH或者EPDCCH的PDSCH传输的服务小区和含有用于指示下行SPS释放的PDCCH或EPDCCH的服务小区的总个数；在TDD-LTE模式下，所述Total DAI用于表示伴随有PDCCH或者EPDCCH的PDSCH传输或含有用于指示下行SPS释放的PDCCH或EPDCCH的服务小区和子帧对的总个数。此外，还需要判断SPS的状态。根据SPS的状态以及所述Total DAI共同确定所述HARQ反馈码本的大小。
一般来说SPS的过程分为几个步骤，SPS的配置，SPS的激活和SPS的去激活。对于配置了SPS的终端，还需要经过SPS激活才能启动SPS的数据发送。当收到SPS激活消息后进入SPS激活状态，处于SPS激活状态后若收到SPS去激活消息后回到SPS去激活状态，此时不能进行SPS的数据发送。因此，SPS的状态可以分为激活状态和非激活状态。通过判断是否接收到用于指示SPS激活的信息可用来判断SPS的状态。
在一种实施方式中，当所述SPS的状态处于激活状态时，所述HARQ反馈码本的大小等于第一码本的大小加1比特，其中，所述第一码本的大小是根据所述下行分配指示总数值确定的。
具体的，在获取到Total DAI之后，根据Total DAI确定第一码本的大小。此外还需要判断是否处于SPS激活状态，若从所述基站接收到用于指示SPS激活的信息后，则表明SPS处于激活状态，所述HARQ反馈码本的大小等于第一码本的大小加1比特；否则，则以所述第一码本的大小作为所述HARQ反馈码本的大小。
在另一种实施方式中，可进一步根据指示SPS激活和去激活的信息的接收情况配置第一参数，所述第一参数用于表示SPS的状态，或表示无对应PDCCH或EPDCCH的PDSCH传输的HARQ比特的个数值；当从所述基站接收到用于指示SPS激活的信息时，所述第一参数的值为1；当从所述基站接收到用于指示SPS去激活的信息时，所述第一参数的值为0。
具体的，所述第一参数用于表示SPS的状态，当终端处于激活状态时，该参数等于‘1’，否则该参数等于‘0’。由于无对应PDCCH或EPDCCH的PDSCH传输的HARQ比特的个数值在SPS激活状态时为1比特，其他状态均为0比特，因此第一参数也可以表示无对应PDCCH或EPDCCH的PDSCH传输的HARQ比特的个数值。
所述第一参数的初始值为0，当从所述基站接收到用于指示SPS激活的信息时，将所述第一参数的值设置为1；当从所述基站接收到用于指示SPS去激活的信息时，将所述第一参数的值设置为0。当所述第一参数的值大于0时，所述HARQ反馈码本的大小等于第一码本的大小加1比特，其中，所述第一码本的大小是根据Total DAI确定的。
在本步骤中，当接收到用于指示SPS激活的信息时，所述HARQ码本在原有的基础上加1比特，可以理解的是，所述添加的1比特即为所述无对应PDCCH或EPDCCH的PDSCH传输的HARQ比特。当终端处于SPS激活状态，且收到下行SPS数据时，所述无对应PDCCH或EPDCCH的PDSCH传输的HARQ比特是通过对无对应PDCCH或EPDCCH的PDSCH解码成功与否生成。当UE处于SPS激活状态，但是没有接收到下行SPS数据时，无对应PDCCH或EPDCCH的PDSCH传输的HARQ比特设置为NACK，即‘0’。
在一种实施方式中，所述无对应PDCCH或EPDCCH的PDSCH传输的HARQ比特位于所述HARQ反馈码本的最后一位。可以理解的是，在获取所述下行数据中的DCI时，所述DCI可进一步包括Counter DAI，在FDD-LTE模式下，所述Counter DAI用于表示一个子帧内，按照服务小区索引值增加的方向到当前服务小区，伴随有PDCCH或EPDCCH的下行共享信道PDSCH的服务小区和用于指示下行SPS释放的PDCCH或EPDCCH的服务小区的累积个数；在TDD-LTE模式下，所述Counter DAI用于表示至少一个子帧内，按照先服务小区索引值增加的方向然后子帧序号增加的方向，到当前服务小区 和当前子帧，伴随有PDCCH或EPDCCH的PDSCH或用于指示下行SPS释放的PDCCH或EPDCCH的服务小区和子帧对的累积个数。在获取到Counter DAI之后，根据所述Counter DAI确定所述HARQ反馈码本中除了所述无对应PDCCH或EPDCCH的PDSCH传输的HARQ比特外各个比特的顺序，并将所述无对应PDCCH或EPDCCH的PDSCH传输的HARQ比特置于所述HARQ反馈码本的最后一位。
在另一种实施方式中，所述无对应PDCCH或EPDCCH的PDSCH传输的HARQ比特位于所述HARQ反馈码本的第一位。本实施方式中，无对应PDCCH或EPDCCH的PDSCH传输的HARQ比特的位数在SPS激活状态时仅为1个比特，并将所述无对应PDCCH或EPDCCH的PDSCH传输的HARQ比特置于所述HARQ反馈码本的第一位，然后根据所述无对应PDCCH或EPDCCH的PDSCH传输的HARQ比特的位数以及获取到的下行分配指示计数值Counter DAI确定所述HARQ反馈码本中其他各个比特的位置。
下面结合图7进行说明，图7所示为本申请实施例提供的一种下行数据的混合式自动重传请求反馈方法第三实施例中生成HARQ码本的示意图。在本实施例中，以FDD-LTE模式为例进行说明，本领域技术人员可以理解的是，本实施例中下行数据的混合式自动重传请求反馈方法也可以应用于TDD-LTE中。
如图7所示，在一个子帧中，包括了多个CC(Component Carrier，载波单元)，图中用CC1-CC10表示，每个载波单元就是一个载波，也是一个服务小区。图中还包括了四种类型的下行数据传输，分别用类型1、类型2、类型3、类型4表示。其中，类型1表示在下行SPS子帧上发送的PDSCH，该PDSCH无对应的PDCCH或EPDCCH；类型2表示伴随有PDCCH或EPDCCH的PDSCH下行数据；类型3表示无调度，也就是说没有任何下行数据；类型4表示有伴随有PDCCH或EPDCCH的PDSCH下行数据，但PDCCH或EPDCCH接收失败。在本实施方式中，Counter DAI以及Total DAI与当前技术中的相同，本实施例中根据是否接收到用于指示SPS激活的信息以及Total DAI来确定HARQ反馈码本的大小，当接收到用于指示SPS激活的信息时，在根据Total DAI确定的第一码本大小的基础上增加1比特。该1比特用于存放无对应PDCCH或EPDCCH的PDSCH传输的HARQ比特。可以理解的是，该无对应 PDCCH或EPDCCH的PDSCH传输的HARQ比特是针对载波1解码得到的。在不同的实施方式中，根据下行数据类型1确定的无对应PDCCH或EPDCCH的PDSCH传输的HARQ比特可以位于HARQ码本的最后一位，也可以位于HARQ码本的第一位。图7仅给出了无对应PDCCH或EPDCCH的PDSCH传输的HARQ比特可以位于HARQ码本的最后一位的示例。
本申请实施例中的下行数据的HARQ反馈方法，通过根据下行数据中的指示SPS激活的信息的接收情况以及Total DAI确定HARQ反馈码本的大小，所述HARQ反馈码本中包括了无对应PDCCH或EPDCCH的PDSCH传输的HARQ比特，从而能够针对SPS的下行传输作出正确的接收回应，提高了动态HARQ码本的适用范围。
图8所示为本申请实施例提供的一种下行数据的混合式自动重传请求反馈装置第一实施例的结构示意图。在本实施方式中，该装置可包括：
第一接收模块801，用于从基站接收下行数据；
第一发送模块802，用于向所述基站发送混合式自动重传请求HARQ反馈码本；
其中，所述HARQ反馈码本的大小是根据所述下行数据中的第一指示总值确定的；
所述第一指示总值用于表示一个子帧内含有下行共享信道PDSCH传输的服务小区和含有用于指示下行半持续调度SPS释放的物理下行控制信道PDCCH或增强的物理下行控制信道EPDCCH的服务小区的总个数，或者，用于表示至少一个子帧内，到当前子帧含有PDSCH传输或含有用于指示下行SPS释放的PDCCH或EPDCCH的服务小区和子帧对的总个数；
所述HARQ反馈码本包括无对应PDCCH或EPDCCH的PDSCH传输的HARQ比特。
进一步的，可选地，所述无对应PDCCH或EPDCCH的PDSCH传输的HARQ比特位于所述HARQ反馈码本的最后一位或第一位。
可以理解的是，本实施例的装置的各功能模块的功能可根据上述方法实施例中图2所示的方法具体实现，其具体实现过程可以参照上述方法实施例的相关描述，此处不再进行赘述。
可以理解的是，本实施例的装置可以是终端。
本申请实施例中的下行数据的HARQ反馈装置，通过根据下行数据中的第一指示总值确定HARQ反馈码本的大小，所述HARQ反馈码本中包括了无对应PDCCH或EPDCCH的PDSCH传输的HARQ比特，从而能够针对SPS的下行传输作出正确的接收回应，提高了动态HARQ码本的适用范围。
图9所示为本申请实施例提供的一种下行数据的混合式自动重传请求反馈装置第二实施例的结构示意图。在本实施方式中，该装置可包括：
第二发送模块901，用于向终端发送下行数据；
第二接收模块902，用于接收终端返回的混合式自动重传请求HARQ反馈码本；
其中，所述下行数据包括第一指示总值，所述HARQ反馈码本的大小是根据所述第一指示总值确定的；
所述第一指示总值用于表示一个子帧内含有下行共享信道PDSCH传输的服务小区和含有用于指示下行半持续调度SPS释放的物理下行控制信道PDCCH或增强的物理下行控制信道EPDCCH的服务小区的总个数，或者，用于表示至少一个子帧内，到当前子帧含有PDSCH传输或含有用于指示下行SPS释放的PDCCH或EPDCCH的服务小区和子帧对的总个数；
所述HARQ反馈码本包括无对应PDCCH或EPDCCH的PDSCH传输的HARQ比特。
可以理解的是，本实施例的装置的各功能模块的功能可根据上述方法实施例中图5所示的方法具体实现，其具体实现过程可以参照上述方法实施例的相关描述，此处不再进行赘述。
可以理解的是，本实施例的装置可以是基站。
图10所示为本申请实施例提供的一种下行数据的混合式自动重传请求反馈装置第三实施例的结构示意图。在本实施方式中，该装置可包括：
第三接收模块1001，用于从基站接收下行数据；
第三发送模块1002，用于向所述基站发送混合式自动重传请求HARQ反馈码本；
其中，所述HARQ反馈码本的大小是根据半持续调度SPS的状态以及所述下行数据中的下行分配指示总数值确定的；
所述HARQ反馈码本包括无对应物理下行控制信道PDCCH或增强的物 理下行控制信道EPDCCH的下行共享信道PDSCH传输的HARQ比特。
进一步的，可选地，当所述SPS的状态处于激活状态时，所述HARQ反馈码本的大小等于第一码本的大小加1比特；
其中，所述第一码本的大小是根据所述下行分配指示总数值确定的。
进一步的，可选地，所述装置还可以进一步包括配置模块1003，所述配置模块1003用于根据指示半持续调度SPS激活和去激活的信息的接收情况配置第一参数，所述第一参数用于表示SPS的状态，或表示无对应PDCCH或EPDCCH的PDSCH传输的HARQ比特的个数值；当从所述基站接收到用于指示SPS激活的信息时，所述第一参数的值为1；当从所述基站接收到用于指示SPS去激活的信息时，所述第一参数的值为0。
进一步的，可选地，当所述第一参数的值大于0时，所述HARQ反馈码本的大小等于第一码本的大小加1比特；其中，所述第一码本的大小是根据所述下行分配指示总值确定的。
进一步的，可选地，所述无对应PDCCH或EPDCCH的PDSCH传输的HARQ比特位于所述HARQ反馈码本的最后一位或第一位。
可以理解的是，本实施例的装置的各功能模块的功能可根据上述方法实施例中图6所示的方法具体实现，其具体实现过程可以参照上述方法实施例的相关描述，此处不再进行赘述。
可以理解的是，本实施例的装置可以是终端。
本申请实施例中的下行数据的HARQ反馈装置，通过根据下行数据中的指示SPS激活的信息的接收情况以及Total DAI确定HARQ反馈码本的大小，所述HARQ反馈码本中包括了无对应PDCCH或EPDCCH的PDSCH传输的HARQ比特，从而能够针对SPS的下行传输作出正确的接收回应，提高了动态HARQ码本的适用范围。
图11所示为本申请实施例提供的一种下行数据的混合式自动重传请求反馈装置第四实施例的结构示意图。在本实施方式中，所述装置可以为终端，也可以为基站。可以理解的是，图11未示出所述装置的全部元件。该装置可包括：接收器1101、发送器1102以及处理器1103。所述接收器1101、发送器1102以及处理器1103之间可以通过总线进行通信。所述总线可以是外设部件互连标准(peripheral component interconnect，简称PCI)总线或扩展工业标准 结构(extended industry standard architecture，简称EISA)总线等。所述总线可以分为地址总线、数据总线、控制总线等。为便于表示，图11中仅用一条粗线表示，但并不表示仅有一根总线或一种类型的总线。
所述装置还可以包括存储器1104，所述存储器1104可以包括易失性存储器(英文：volatile memory)，例如随机存取存储器(英文：random-access memory，缩写：RAM)；存储器也可以包括非易失性存储器(英文：non-volatile memory)，例如快闪存储器(英文：flash memory)，硬盘(英文：hard disk drive，缩写：HDD)或固态硬盘(英文：solid-state drive，缩写：SSD)；存储器1104还可以包括上述种类的存储器的组合。
所述处理器1103可以是中央处理器(英文：central processing unit，缩写：CPU)，网络处理器(英文：network processor，缩写：NP)或者CPU和NP的组合。
所述处理器1103还可以进一步包括硬件芯片。上述硬件芯片可以是专用集成电路(英文：application-specific integrated circuit，缩写：ASIC)，可编程逻辑器件(英文：programmable logic device，缩写：PLD)或其组合。上述PLD可以是复杂可编程逻辑器件(英文：complex programmable logic device，缩写：CPLD)，现场可编程逻辑门阵列(英文：field-programmable gate array，缩写：FPGA)，通用阵列逻辑(英文：generic array logic,缩写：GAL)或其任意组合。
可选地，所述存储器1104还用于存储程序指令。所述处理器1103可以调用所述程序指令，实现如本申请图2、图5、图6实施例中所示的方法。
在一种实施方式中，所述接收器1101，用于从基站接收下行数据；
所述发送器1102，用于向所述基站发送混合式自动重传请求HARQ反馈码本；
所述处理器1103，用于生成所述HARQ反馈码本；
其中，所述HARQ反馈码本的大小是根据所述下行数据中的第一指示总值确定的；
所述第一指示总值用于表示一个子帧内含有下行共享信道PDSCH传输的服务小区和含有用于指示下行半持续调度SPS释放的物理下行控制信道 PDCCH或增强的物理下行控制信道EPDCCH的服务小区的总个数，或者，用于表示至少一个子帧内，到当前子帧含有PDSCH传输或含有用于指示下行SPS释放的PDCCH或EPDCCH的服务小区和子帧对的总个数；
所述HARQ反馈码本包括无对应PDCCH或EPDCCH的PDSCH传输的HARQ比特。
进一步的，可选地，所述无对应PDCCH或EPDCCH的PDSCH传输的HARQ比特位于所述HARQ反馈码本的最后一位或第一位。
在另一种实施方式中，所述发送器1102，用于向终端发送下行数据；
所述接收器1101，用于接收终端返回的混合式自动重传请求HARQ反馈码本；
其中，所述下行数据包括第一指示总值，所述HARQ反馈码本的大小是根据所述第一指示总值确定的；
所述第一指示总值用于表示一个子帧内含有下行共享信道PDSCH传输的服务小区和含有用于指示下行半持续调度SPS释放的物理下行控制信道PDCCH或增强的物理下行控制信道EPDCCH的服务小区的总个数，或者，用于表示至少一个子帧内，到当前子帧含有PDSCH传输或含有用于指示下行SPS释放的PDCCH或EPDCCH的服务小区和子帧对的总个数；
所述HARQ反馈码本包括无对应PDCCH或EPDCCH的PDSCH传输的HARQ比特。
在又一种实施方式中，所述接收器1101，用于从基站接收下行数据；
所述发送器1102，用于向所述基站发送混合式自动重传请求HARQ反馈码本；
所述处理器1103，用于生成所述HARQ反馈码本；
其中，所述HARQ反馈码本的大小是根据半持续调度SPS的状态以及所述下行数据中的下行分配指示总数值确定的；
所述HARQ反馈码本包括无对应物理下行控制信道PDCCH或增强的物理下行控制信道EPDCCH的下行共享信道PDSCH传输的HARQ比特。
进一步的，可选地，当所述SPS的状态处于激活状态时，所述HARQ反馈码本的大小等于第一码本的大小加1比特；
其中，所述第一码本的大小是根据所述下行分配指示总数值确定的。
进一步的，可选地，所述处理器1103根据指示半持续调度SPS激活和去激活的信息的接收情况配置第一参数，所述第一参数用于表示SPS的状态，或表示无对应PDCCH或EPDCCH的PDSCH传输的HARQ比特的个数值；
当从所述基站接收到用于指示SPS激活的信息时，所述第一参数的值为1；
当从所述基站接收到用于指示SPS去激活的信息时，所述第一参数的值为0。
进一步的，可选地，当所述第一参数的值大于0时，所述HARQ反馈码本的大小等于第一码本的大小加1比特；
其中，所述第一码本的大小是根据所述下行分配指示总值确定的。
进一步的，可选地，所述无对应PDCCH或EPDCCH的PDSCH传输的HARQ比特位于所述HARQ反馈码本的最后一位或第一位。
本申请实施例中的下行数据的HARQ反馈装置，通过根据下行数据确定HARQ反馈码本的大小，所述HARQ反馈码本中包括了无对应PDCCH或EPDCCH的PDSCH传输的HARQ比特，从而能够针对SPS的下行传输作出正确的接收回应，提高了动态HARQ码本的适用范围。
本申请实施例还提供了一种计算机存储介质，所述计算机存储介质可存储有程序，所述程序执行时包括如图2、图5、图6所示的方法的步骤。
需要说明的是，对于前述的各方法实施例，为了简单描述，故将其都表述为一系列的动作组合，但是本领域技术人员应该知悉，本申请并不受所描述的动作顺序的限制，因为根据本申请，某些步骤可以采用其他顺序或者同时进行。其次，本领域技术人员也应该知悉，说明书中所描述的实施例均属于优选实施例，所涉及的动作和模块并不一定是本申请所必须的。
在上述实施例中，对各个实施例的描述都各有侧重，某个实施例中没有详述的部分，可以参见其他实施例的相关描述。
本申请实施例方法中的步骤可以根据实际需要进行顺序调整、合并和删减。
本申请实施例装置中的单元可以根据实际需要进行合并、划分和删减。本领域的技术人员可以将本说明书中描述的不同实施例以及不同实施例的特征进行结合或组合。
通过以上的实施方式的描述，所属领域的技术人员可以清楚地了解到本申请可以用硬件实现，或固件实现，或它们的组合方式来实现。当使用软件实现时，可以将上述功能存储在计算机可读介质中或作为计算机可读介质上的一个或多个指令或代码进行传输。计算机可读介质包括计算机存储介质和通信介质，其中通信介质包括便于从一个地方向另一个地方传送计算机程序的任何介质。存储介质可以是计算机能够存取的任何可用介质。以此为例但不限于：计算机可读介质可以包括随机存取存储器(Random Access Memory，RAM)、只读存储器(Read-Only Memory，ROM)、电可擦可编程只读存储器(Electrically Erasable Programmable Read-Only Memory，EEPROM)、只读光盘(Compact Disc Read-Only Memory，CD-ROM)或其他光盘存储、磁盘存储介质或者其他磁存储设备、或者能够用于携带或存储具有指令或数据结构形式的期望的程序代码并能够由计算机存取的任何其他介质。此外。任何连接可以适当的成为计算机可读介质。例如，如果软件是使用同轴电缆、光纤光缆、双绞线、数字用户线(Digital Subscriber Line，DSL)或者诸如红外线、无线电和微波之类的无线技术从网站、服务器或者其他远程源传输的，那么同轴电缆、光纤光缆、双绞线、DSL或者诸如红外线、无线和微波之类的无线技术包括在所属介质的定影中。如本申请所使用的，盘(Disk)和碟(disc)包括压缩光碟(CD)、激光碟、光碟、数字通用光碟(DVD)、软盘和蓝光光碟，其中盘通常磁性的复制数据，而碟则用激光来光学的复制数据。上面的组合也应当包括在计算机可读介质的保护范围之内。
总之，以上所述仅为本申请技术方案的较佳实施例而已，并非用于限定本申请的保护范围。凡在本申请的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本申请的保护范围之内。

Claims (25)

  1. 一种下行数据的混合式自动重传请求反馈方法，其特征在于，包括：
    从基站接收下行数据；
    向所述基站发送混合式自动重传请求HARQ反馈码本；
    其中，所述HARQ反馈码本的大小是根据所述下行数据中的第一指示总值确定的；
    所述第一指示总值用于表示一个子帧内含有下行共享信道PDSCH传输的服务小区和含有用于指示下行半持续调度SPS释放的物理下行控制信道PDCCH或增强的物理下行控制信道EPDCCH的服务小区的总个数，或者，用于表示至少一个子帧内，到当前子帧含有PDSCH传输或含有用于指示下行SPS释放的PDCCH或EPDCCH的服务小区和子帧对的总个数；
    所述HARQ反馈码本包括无对应PDCCH或EPDCCH的PDSCH传输的HARQ比特。
  2. 如权利要求1所述的方法，其特征在于，
    所述无对应PDCCH或EPDCCH的PDSCH传输的HARQ比特位于所述HARQ反馈码本的最后一位或第一位。
  3. 一种下行数据的混合式自动重传请求反馈方法，其特征在于，包括：
    向终端发送下行数据；
    接收终端返回的混合式自动重传请求HARQ反馈码本；
    其中，所述下行数据包括第一指示总值，所述HARQ反馈码本的大小是根据所述第一指示总值确定的；
    所述第一指示总值用于表示一个子帧内含有下行共享信道PDSCH传输的服务小区和含有用于指示下行半持续调度SPS释放的物理下行控制信道PDCCH或增强的物理下行控制信道EPDCCH的服务小区的总个数，或者，用于表示至少一个子帧内，到当前子帧含有PDSCH传输或含有用于指示下行SPS释放的PDCCH或EPDCCH的服务小区和子帧对的总个数；
    所述HARQ反馈码本包括无对应PDCCH或EPDCCH的PDSCH传输的 HARQ比特。
  4. 一种下行数据的混合式自动重传请求反馈方法，其特征在于，包括：
    从基站接收下行数据；
    向所述基站发送混合式自动重传请求HARQ反馈码本；
    其中，所述HARQ反馈码本的大小是根据半持续调度SPS的状态以及所述下行数据中的下行分配指示总数值确定的；
    所述HARQ反馈码本包括无对应物理下行控制信道PDCCH或增强的物理下行控制信道EPDCCH的下行共享信道PDSCH传输的HARQ比特。
  5. 如权利要求4所述的方法，其特征在于，当所述SPS的状态处于激活状态时，所述HARQ反馈码本的大小等于第一码本的大小加1比特；
    其中，所述第一码本的大小是根据所述下行分配指示总数值确定的。
  6. 如权利要求4所述的方法，其特征在于，还包括，
    根据指示半持续调度SPS激活和去激活的信息的接收情况配置第一参数，所述第一参数用于表示SPS的状态，或表示无对应PDCCH或EPDCCH的PDSCH传输的HARQ比特的个数值；
    当从所述基站接收到用于指示SPS激活的信息时，所述第一参数的值为1；
    当从所述基站接收到用于指示SPS去激活的信息时，所述第一参数的值为0。
  7. 如权利要求6所述的方法，其特征在于，当所述第一参数的值大于0时，所述HARQ反馈码本的大小等于第一码本的大小加1比特；
    其中，所述第一码本的大小是根据所述下行分配指示总值确定的。
  8. 如权利要求4-7任一项所述的方法，其特征在于，
    所述无对应PDCCH或EPDCCH的PDSCH传输的HARQ比特位于所述HARQ反馈码本的最后一位或第一位。
  9. 一种下行数据的混合式自动重传请求反馈装置，其特征在于，包括：
    第一接收模块，用于从基站接收下行数据；
    第一发送模块，用于向所述基站发送混合式自动重传请求HARQ反馈码本；
    其中，所述HARQ反馈码本的大小是根据所述下行数据中的第一指示总值确定的；
    所述第一指示总值用于表示一个子帧内含有下行共享信道PDSCH传输的服务小区和含有用于指示下行半持续调度SPS释放的物理下行控制信道PDCCH或增强的物理下行控制信道EPDCCH的服务小区的总个数，或者，用于表示至少一个子帧内，到当前子帧含有PDSCH传输或含有用于指示下行SPS释放的PDCCH或EPDCCH的服务小区和子帧对的总个数；
    所述HARQ反馈码本包括无对应PDCCH或EPDCCH的PDSCH传输的HARQ比特。
  10. 如权利要求9所述的装置，其特征在于，
    所述无对应PDCCH或EPDCCH的PDSCH传输的HARQ比特位于所述HARQ反馈码本的最后一位或第一位。
  11. 一种下行数据的混合式自动重传请求反馈装置，其特征在于，包括：
    第二发送模块，用于向终端发送下行数据；
    第二接收模块，用于接收终端返回的混合式自动重传请求HARQ反馈码本；
    其中，所述下行数据包括第一指示总值，所述HARQ反馈码本的大小是根据所述第一指示总值确定的；
    所述第一指示总值用于表示一个子帧内含有下行共享信道PDSCH传输的服务小区和含有用于指示下行半持续调度SPS释放的物理下行控制信道PDCCH或增强的物理下行控制信道EPDCCH的服务小区的总个数，或者，用于表示至少一个子帧内，到当前子帧含有PDSCH传输或含有用于指示下行SPS释放的PDCCH或EPDCCH的服务小区和子帧对的总个数；
    所述HARQ反馈码本包括无对应PDCCH或EPDCCH的PDSCH传输的 HARQ比特。
  12. 一种下行数据的混合式自动重传请求反馈装置，其特征在于，包括：
    第三接收模块，用于从基站接收下行数据；
    第三发送模块，用于向所述基站发送混合式自动重传请求HARQ反馈码本；
    其中，所述HARQ反馈码本的大小是根据半持续调度SPS的状态以及所述下行数据中的下行分配指示总数值确定的；
    所述HARQ反馈码本包括无对应物理下行控制信道PDCCH或增强的物理下行控制信道EPDCCH的下行共享信道PDSCH传输的HARQ比特。
  13. 如权利要求12所述的装置，其特征在于，当所述SPS的状态处于激活状态时，所述HARQ反馈码本的大小等于第一码本的大小加1比特；
    其中，所述第一码本的大小是根据所述下行分配指示总数值确定的。
  14. 如权利要求12所述的装置，其特征在于，还包括，
    配置模块，用于根据指示半持续调度SPS激活和去激活的信息的接收情况配置第一参数，所述第一参数用于表示SPS的状态，或表示无对应PDCCH或EPDCCH的PDSCH传输的HARQ比特的个数值；
    当从所述基站接收到用于指示SPS激活的信息时，所述第一参数的值为1；
    当从所述基站接收到用于指示SPS去激活的信息时，所述第一参数的值为0。
  15. 如权利要求14所述的装置，其特征在于，当所述第一参数的值大于0时，所述HARQ反馈码本的大小等于第一码本的大小加1比特；
    其中，所述第一码本的大小是根据所述下行分配指示总值确定的。
  16. 如权利要求12-15任一项所述的装置，其特征在于，
    所述无对应PDCCH或EPDCCH的PDSCH传输的HARQ比特位于所述HARQ反馈码本的最后一位或第一位。
  17. 一种下行数据的混合式自动重传请求反馈装置，其特征在于，包括接收器、发送器以及处理器：
    所述接收器，用于从基站接收下行数据；
    所述发送器，用于向所述基站发送混合式自动重传请求HARQ反馈码本；
    所述处理器，用于生成所述HARQ反馈码本；
    其中，所述HARQ反馈码本的大小是根据所述下行数据中的第一指示总值确定的；
    所述第一指示总值用于表示一个子帧内含有下行共享信道PDSCH传输的服务小区和含有用于指示下行半持续调度SPS释放的物理下行控制信道PDCCH或增强的物理下行控制信道EPDCCH的服务小区的总个数，或者，用于表示至少一个子帧内，到当前子帧含有PDSCH传输或含有用于指示下行SPS释放的PDCCH或EPDCCH的服务小区和子帧对的总个数；
    所述HARQ反馈码本包括无对应PDCCH或EPDCCH的PDSCH传输的HARQ比特。
  18. 如权利要求15所述的装置，其特征在于，
    所述无对应PDCCH或EPDCCH的PDSCH传输的HARQ比特位于所述HARQ反馈码本的最后一位或第一位。
  19. 一种下行数据的混合式自动重传请求反馈装置，其特征在于，包括接收器以及发送器：
    所述发送器，用于向终端发送下行数据；
    所述接收器，用于接收终端返回的混合式自动重传请求HARQ反馈码本；
    其中，所述下行数据包括第一指示总值，所述HARQ反馈码本的大小是根据所述第一指示总值确定的；
    所述第一指示总值用于表示一个子帧内含有下行共享信道PDSCH传输的服务小区和含有用于指示下行半持续调度SPS释放的物理下行控制信道PDCCH或增强的物理下行控制信道EPDCCH的服务小区的总个数，或者，用于表示至少一个子帧内，到当前子帧含有PDSCH传输或含有用于指示下行 SPS释放的PDCCH或EPDCCH的服务小区和子帧对的总个数；
    所述HARQ反馈码本包括无对应PDCCH或EPDCCH的PDSCH传输的HARQ比特。
  20. 一种下行数据的混合式自动重传请求反馈装置，其特征在于，包括接收器、发送器以及处理器：
    所述接收器，用于从基站接收下行数据；
    所述发送器，用于向所述基站发送混合式自动重传请求HARQ反馈码本；
    所述处理器，用于生成所述HARQ反馈码本；
    其中，所述HARQ反馈码本的大小是根据半持续调度SPS的状态以及所述下行数据中的下行分配指示总数值确定的；
    所述HARQ反馈码本包括无对应物理下行控制信道PDCCH或增强的物理下行控制信道EPDCCH的下行共享信道PDSCH传输的HARQ比特。
  21. 如权利要求20所述的装置，其特征在于，当所述SPS的状态处于激活状态时，所述HARQ反馈码本的大小等于第一码本的大小加1比特；
    其中，所述第一码本的大小是根据所述下行分配指示总数值确定的。
  22. 如权利要求20所述的装置，其特征在于，还包括，
    所述处理器根据指示半持续调度SPS激活和去激活的信息的接收情况配置第一参数，所述第一参数用于表示SPS的状态，或表示无对应PDCCH或EPDCCH的PDSCH传输的HARQ比特的个数值；
    当从所述基站接收到用于指示SPS激活的信息时，所述第一参数的值为1；
    当从所述基站接收到用于指示SPS去激活的信息时，所述第一参数的值为0。
  23. 如权利要求22所述的装置，其特征在于，当所述第一参数的值大于0时，所述HARQ反馈码本的大小等于第一码本的大小加1比特；
    其中，所述第一码本的大小是根据所述下行分配指示总值确定的。
  24. 如权利要求20-23任一项所述的装置，其特征在于，
    所述无对应PDCCH或EPDCCH的PDSCH传输的HARQ比特位于所述HARQ反馈码本的最后一位或第一位。
  25. 一种计算机存储介质，其特征在于，
    所述计算机存储介质可存储有程序，所述程序执行时包括如权利要求1-8任一项所述的步骤。
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CN110380829A (zh) 2019-10-25
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US10686562B2 (en) 2020-06-16
US20200304244A1 (en) 2020-09-24
EP3840265A1 (en) 2021-06-23
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