WO2017193946A1 - 一种反馈信息传输方法、ue、基站和系统 - Google Patents

一种反馈信息传输方法、ue、基站和系统 Download PDF

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Publication number
WO2017193946A1
WO2017193946A1 PCT/CN2017/083850 CN2017083850W WO2017193946A1 WO 2017193946 A1 WO2017193946 A1 WO 2017193946A1 CN 2017083850 W CN2017083850 W CN 2017083850W WO 2017193946 A1 WO2017193946 A1 WO 2017193946A1
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Prior art keywords
target subframe
subframe
tti
feedback information
target
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PCT/CN2017/083850
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English (en)
French (fr)
Inventor
司倩倩
潘学明
高雪娟
郑方政
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电信科学技术研究院
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Publication of WO2017193946A1 publication Critical patent/WO2017193946A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements 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
    • H04L1/18Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1812Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements 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
    • H04L1/1607Details of the supervisory signal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements 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
    • H04L1/18Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1829Arrangements specially adapted for the receiver end
    • H04L1/1861Physical mapping arrangements
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053Allocation of signaling, i.e. of overhead other than pilot signals
    • H04L5/0055Physical resource allocation for ACK/NACK
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • H04W72/044Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446Resources in time domain, e.g. slots or frames
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/12Wireless traffic scheduling
    • H04W72/1263Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • H04W72/1273Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of downlink data flows

Definitions

  • the present disclosure relates to the field of communications technologies, and in particular, to a feedback information transmission method, a user equipment (UE, User Equipment), a base station, and a system.
  • UE user equipment
  • base station base station
  • the main method for shortening the user plane delay performance is to reduce the length of the Transmission Time Interval (TTI), that is, a short TTI or a variable length TTI may occur in the future.
  • TTI Transmission Time Interval
  • multiple TTIs can be included in one subframe.
  • the current transmission scheme of the feedback information is based on the fixed length TTI, for example, the feedback information of the subframe n is fed back in the subframe n+4.
  • TTI Transmission Time Interval
  • An object of the present disclosure is to provide a feedback information transmission method, a UE, a base station, and a system, which solve the problem that transmission of feedback information cannot be adapted to a short TTI or a variable length TTI.
  • an embodiment of the present disclosure provides a feedback information transmission method, including:
  • the UE generates feedback information of the target subframe
  • the UE transmits the feedback information to a base station in a next subframe of the target subframe.
  • the feedback information includes:
  • Hybrid Automatic Repeat ReQuest (HARQ, Hybrid Automatic Repeat re Quest) Acknowledgement (ACK, ACKnowledgement) feedback information or HARQ negative acknowledgment (NACK, Non-ACKnowledgement) feedback information.
  • HARQ Hybrid Automatic Repeat ReQuest
  • ACK Acknowledgement
  • NACK HARQ negative acknowledgment
  • the UE generates feedback information of the target subframe, including:
  • the UE determines a codebook size of the feedback information of the target subframe, and generates feedback information of the target subframe according to the codebook size.
  • the determining, by the UE, a codebook size of the feedback information of the target subframe includes:
  • the maximum number of downlink TTIs that can be transmitted in the target subframe the number of configured carriers, the downlink configuration index value (DAI, Downlink Assignment Index) information indicated by the base station, the high layer signaling, and the number of transport blocks.
  • DAI Downlink Assignment Index
  • the maximum number of TTIs that can be transmitted in the target subframe is the maximum number of TTIs that can be included in the target subframe;
  • the target subframe is a special subframe
  • the maximum number of TTIs that can be transmitted in the target subframe is the maximum number of TTIs that can be included in the downlink slot of the target subframe
  • the special subframe is at least Including downlink time slots and guard intervals
  • the maximum number of TTIs that can be transmitted in the target subframe is the maximum number of basic TTIs that can be transmitted in the target subframe, where the basic TTI is The length is K Orthogonal Frequency Division Multiplexing (OFDM) symbols, and the K is an integer greater than or equal to 1; or
  • the maximum number of transmittable TTIs of the target subframe is determined separately on the multiple downlink carriers, or the target subframe is transmittable.
  • the maximum number of TTIs is the maximum number of downlink TTIs transmitted in the target subframe among the plurality of downlink carriers.
  • the DAI information indicated by the base station includes one or more of the following:
  • the time domain countdown configuration index value counts the downlink configuration index value (C-DAI, Count Downlink Assignment Index), the total downlink configuration index value (T-DAI, Total Downlink Assignment Index), and the C-DAI of the frequency domain and the time domain.
  • the C-DAI in the frequency domain and the time domain is a TTI index of the downlink data scheduled by the base station, And the C-DAI in the frequency domain and the time domain counts the scheduled TTIs according to the order of the time domain and the time domain;
  • the T-DAI is a total number of all downlink subframes that the UE needs to feed back in an uplink subframe, and the T-DAI is updated in each subframe in the time domain;
  • the C-DAI of the time domain is a TTI index of the downlink data scheduled by the base station only in the time domain, and the C-DAI of the time domain counts the TTIs scheduled in the time domain in chronological order.
  • the high layer signaling and/or transport block data is used to determine a feedback bit number of each TTI in the target subframe, where:
  • the high-level signaling is used to indicate whether to use the codeword combination. If the combination is performed, the number of feedback bits of each TTI in the target subframe is 1, and if not, the TTI of each target in the target subframe. The number of feedback bits is determined by the carrier transmission mode; or
  • the high layer signaling is a number of feedback bits used to indicate each TTI in the target subframe.
  • the number of transmission blocks is the number of feedback bits of each TTI in the target subframe.
  • the UE generates feedback information of the target subframe according to the codebook size, including:
  • the UE sorts the feedback bits of the target subframe according to the DAI information to obtain a codebook of the codebook size to generate feedback information of the target subframe;
  • the TTI number is a number according to an actual transmission sequence of the TTI.
  • the TTI number is a number according to a basic TTI sequence, and the length of the basic TTI is K OFDM symbols, and the K is an integer greater than or equal to 1.
  • the number of the TTI received by the UE is the number of the basic TTI to which the first OFDM symbol of the TTI belongs.
  • the UE transmits the feedback to the base station in a next subframe of the target subframe.
  • Information including:
  • the transmitting, by the UE, the feedback information to the base station in a next subframe of the target subframe including:
  • s PUCCH Short Physical Uplink Control Channel
  • the UE transmits the feedback information to the base station in a Short Physical Uplink Shared Channel (s PUSCH) format in a next subframe of the target subframe.
  • s PUSCH Short Physical Uplink Shared Channel
  • the target subframe is a time period including z OFDM symbols in a time domain, and a next subframe of the target subframe is a next time period of the target subframe in a time domain.
  • the z is a positive integer greater than or equal to 1.
  • the embodiment of the present disclosure further provides a feedback information transmission method, including:
  • the base station receives the feedback information that is transmitted by the UE in the next subframe of the target subframe, and the feedback information is feedback information of the target subframe generated by the UE.
  • the feedback information includes:
  • ACK feedback information of HARQ or NACK feedback information of HARQ.
  • the feedback information of the target subframe includes:
  • the UE generates feedback information of the target subframe according to the determined codebook size of the feedback information of the target subframe.
  • the codebook size includes:
  • the specific information includes one or more of the following:
  • the maximum number of downlink TTIs that can be transmitted in the target subframe the number of configured carriers, the DAI information indicated by the base station, the high layer signaling, and the number of transport blocks.
  • the maximum number of TTIs that can be transmitted in the target subframe is the maximum number of TTIs that can be included in the target subframe;
  • the target subframe is a special subframe
  • the maximum number of TTIs that can be transmitted in the target subframe is the maximum number of TTIs that can be included in the downlink slot of the target subframe
  • the special subframe is at least Including downlink time slots and guard intervals
  • the maximum number of TTIs that can be transmitted in the target subframe is the maximum number of basic TTIs that can be transmitted in the target subframe, where the basic TTI is The length is K OFDM symbols, and the K is an integer greater than or equal to 1; or
  • the maximum number of transmittable TTIs of the target subframe is determined separately on the multiple downlink carriers, or the target subframe is transmittable.
  • the maximum number of TTIs is the maximum number of downlink TTIs transmitted in the target subframe among the plurality of downlink carriers.
  • the DAI information indicated by the base station includes one or more of the following:
  • Time domain C-DAI, T-DAI, and C-DAI in the frequency domain and time domain.
  • the C-DAI in the frequency domain and the time domain is a TTI index of the downlink data scheduled by the base station, and the C-DAI in the frequency domain and the time domain are scheduled according to the order of the time domain in the pre-frequency domain. TTI is counted;
  • the T-DAI is a total number of all downlink subframes that the UE needs to feed back in an uplink subframe, and the T-DAI is updated in each subframe in the time domain;
  • the C-DAI of the time domain is a TTI index of the downlink data scheduled by the base station only in the time domain, and the C-DAI of the time domain counts the TTIs scheduled in the time domain in chronological order.
  • the high layer signaling and/or transport block data is used to determine a feedback bit number of each TTI in the target subframe, where:
  • the high-level signaling is used to indicate whether to use the codeword combination. If the combination is performed, the number of feedback bits of each TTI in the target subframe is 1, and if not, the TTI of each target in the target subframe. The number of feedback bits is determined by the carrier transmission mode; or
  • the high layer signaling is a number of feedback bits used to indicate each TTI in the target subframe.
  • the number of transmission blocks is the number of feedback bits of each TTI in the target subframe.
  • the feedback information of the target subframe includes:
  • the UE sorts the feedback bits of the target subframe according to the DAI information, and obtains the codebook of the codebook size to generate feedback information of the target subframe; or
  • the information is sorted.
  • the TTI number is a number according to an actual transmission sequence of the TTI.
  • the TTI number is a number according to a basic TTI sequence, and the length of the basic TTI is K OFDM symbols, and the K is an integer greater than or equal to 1.
  • the number of the TTI received by the UE is the number of the basic TTI to which the first OFDM symbol of the TTI belongs.
  • the receiving, by the base station, the feedback information that is sent by the UE in the next subframe of the target subframe including:
  • the base station Receiving, by the base station, the feedback information that is transmitted by a UE in a specific resource in a next subframe of the target subframe, where the specific resource is determined by a TTI length and a location of a downlink transmission in the target subframe, where Or the specific resource refers to signaling by high layer signaling and/or scheduling downlink TTI.
  • the receiving, by the base station, the feedback information that is sent by the UE in the next subframe of the target subframe including:
  • the base station receives the feedback information that is transmitted by the UE in the s PUSCH format in the next subframe of the target subframe.
  • the target subframe is a time period including z OFDM symbols in a time domain
  • a next subframe of the target subframe is a next time period of the target subframe in a time domain.
  • Time A segment, the z being a positive integer greater than or equal to one.
  • the embodiment of the present disclosure further provides a UE, including:
  • a generating module configured to generate feedback information of the target subframe
  • a transmitting module configured to transmit the feedback information to the base station in a next subframe of the target subframe.
  • the feedback information includes:
  • ACK feedback information of HARQ or NACK feedback information of HARQ.
  • the generating module is configured to determine a codebook size of the feedback information of the target subframe, and generate feedback information of the target subframe according to the codebook size.
  • the generating module is configured to determine, according to the specific information, a codebook size of the feedback information of the target subframe, where the specific information includes one or more of the following:
  • the maximum number of downlink TTIs that can be transmitted in the target subframe the number of configured carriers, the DAI information indicated by the base station, the high layer signaling, and the number of transport blocks.
  • the maximum number of TTIs that can be transmitted in the target subframe is the maximum number of TTIs that can be included in the target subframe;
  • the target subframe is a special subframe
  • the maximum number of TTIs that can be transmitted in the target subframe is the maximum number of TTIs that can be included in the downlink slot of the target subframe
  • the special subframe is at least Including downlink time slots and guard intervals
  • the maximum number of TTIs that can be transmitted in the target subframe is the maximum number of basic TTIs that can be transmitted in the target subframe, where the basic TTI is The length is K OFDM symbols, and the K is an integer greater than or equal to 1; or
  • the maximum number of transmittable TTIs of the target subframe is determined separately on the multiple downlink carriers, or the target subframe is transmittable.
  • the maximum number of TTIs is the maximum number of downlink TTIs transmitted in the target subframe among the plurality of downlink carriers.
  • the DAI information indicated by the base station includes one or more of the following:
  • Time domain C-DAI, T-DAI, and C-DAI in the frequency domain and time domain.
  • the C-DAI in the frequency domain and the time domain is a TTI index of the downlink data scheduled by the base station, and the C-DAI in the frequency domain and the time domain are scheduled according to the order of the time domain in the pre-frequency domain.
  • the T-DAI is a total number of all downlink subframes that the UE needs to feed back in an uplink subframe, and the T-DAI is updated in each subframe in the time domain;
  • the C-DAI of the time domain is a TTI index of the downlink data scheduled by the base station only in the time domain, and the C-DAI of the time domain counts the TTIs scheduled in the time domain in chronological order.
  • the high layer signaling and/or transport block data is used to determine a feedback bit number of each TTI in the target subframe, where:
  • the high-level signaling is used to indicate whether to use the codeword combination. If the combination is performed, the number of feedback bits of each TTI in the target subframe is 1, and if not, the TTI of each target in the target subframe. The number of feedback bits is determined by the carrier transmission mode; or
  • the high layer signaling is a number of feedback bits used to indicate each TTI in the target subframe.
  • the number of transmission blocks is the number of feedback bits of each TTI in the target subframe.
  • the generating module is configured to concatenate feedback bits of the target subframe in the at least one carrier to obtain a codebook of the codebook size, to generate feedback information of the target subframe, where each The feedback bits of the target subframe in the carrier are sorted according to the TTI number; or
  • the generating module is configured to sort the feedback bits of the target subframe according to the DAI information, to obtain a codebook of the codebook size, to generate feedback information of the target subframe; or
  • the generating module is configured to cascade the feedback bits of the target subframe in the at least one carrier to obtain the codebook of the codebook size, to generate feedback information of the target subframe, where the feedback bits of each carrier Sort by DAI information.
  • the TTI number is a number according to an actual transmission sequence of the TTI.
  • the TTI number is a number according to a basic TTI sequence, and the length of the basic TTI is K OFDM symbols, and the K is an integer greater than or equal to 1.
  • the number of the TTI received by the UE is the number of the basic TTI to which the first OFDM symbol of the TTI belongs.
  • the transmitting module is configured to transmit the feedback information to a base station in a last x OFDM symbols in a next subframe of the target subframe, where x is an integer greater than or equal to 1;
  • the transmission module is configured to send a base station to a specific resource in a next subframe of the target subframe Transmitting the feedback information, wherein the specific resource is determined by a TTI length and a location of a downlink transmission in the target subframe, or the specific resource is indicated by high layer signaling and/or signaling of a downlink TTI.
  • the transmitting module is configured to transmit the feedback information to the base station in a s PUCCH format in a next subframe of the target subframe;
  • the transmitting module is configured to transmit the feedback information to a base station by using an sPUSCH format in a next subframe of the target subframe.
  • the target subframe is a time period including z OFDM symbols in a time domain, and a next subframe of the target subframe is a next time period of the target subframe in a time domain.
  • the z is a positive integer greater than or equal to 1.
  • the embodiment of the present disclosure further provides a base station, including:
  • a receiving module configured to receive feedback information that is transmitted by the UE in a next subframe of the target subframe, where the feedback information is feedback information of the target subframe generated by the UE.
  • the feedback information includes:
  • ACK feedback information of HARQ or NACK feedback information of HARQ.
  • the feedback information of the target subframe includes:
  • the UE generates feedback information of the target subframe according to the determined codebook size of the feedback information of the target subframe.
  • the codebook size includes:
  • the specific information includes one or more of the following:
  • the maximum number of downlink TTIs that can be transmitted in the target subframe the number of configured carriers, the DAI information indicated by the base station, the high layer signaling, and the number of transport blocks.
  • the maximum number of TTIs that can be transmitted in the target subframe is the maximum number of TTIs that can be included in the target subframe;
  • the target subframe is a special subframe
  • the maximum number of TTIs that can be transmitted in the target subframe is the maximum number of TTIs that can be included in the downlink slot of the target subframe
  • the special subframe is at least Including downlink time slots and guard intervals
  • the target subframe may be
  • the maximum number of TTIs transmitted is the maximum number of basic TTIs that can be transmitted in the target subframe, the length of the basic TTI is K OFDM symbols, and the K is an integer greater than or equal to 1;
  • the maximum number of transmittable TTIs of the target subframe is determined separately on the multiple downlink carriers, or the target subframe is transmittable.
  • the maximum number of TTIs is the maximum number of downlink TTIs transmitted in the target subframe among the plurality of downlink carriers.
  • the DAI information indicated by the base station includes one or more of the following:
  • Time domain C-DAI, T-DAI, and C-DAI in the frequency domain and time domain.
  • the C-DAI in the frequency domain and the time domain is a TTI index of the downlink data scheduled by the base station, and the C-DAI in the frequency domain and the time domain are scheduled according to the order of the time domain in the pre-frequency domain. TTI is counted;
  • the T-DAI is a total number of all downlink subframes that the UE needs to feed back in an uplink subframe, and the T-DAI is updated in each subframe in the time domain;
  • the C-DAI of the time domain is a TTI index of the downlink data scheduled by the base station only in the time domain, and the C-DAI of the time domain counts the TTIs scheduled in the time domain in chronological order.
  • the high layer signaling and/or transport block data is used to determine a feedback bit number of each TTI in the target subframe, where:
  • the high-level signaling is used to indicate whether to use the codeword combination. If the combination is performed, the number of feedback bits of each TTI in the target subframe is 1, and if not, the TTI of each target in the target subframe. The number of feedback bits is determined by the carrier transmission mode; or
  • the high layer signaling is a number of feedback bits used to indicate each TTI in the target subframe.
  • the number of transmission blocks is the number of feedback bits of each TTI in the target subframe.
  • the feedback information of the target subframe includes:
  • the UE sorts the feedback bits of the target subframe according to the DAI information, and obtains the codebook of the codebook size to generate feedback information of the target subframe; or
  • the codebook of the current size is used to generate feedback information of the target subframe, wherein the feedback bits of each carrier are sorted according to the DAI information.
  • the TTI number is a number according to an actual transmission sequence of the TTI.
  • the TTI number is a number according to a basic TTI sequence, and the length of the basic TTI is K OFDM symbols, and the K is an integer greater than or equal to 1.
  • the number of the TTI received by the UE is the number of the basic TTI to which the first OFDM symbol of the TTI belongs.
  • the receiving module is configured to receive, by the UE, the feedback information that is transmitted by the UE in a last x OFDM symbols in a next subframe of the target subframe, where x is an integer greater than or equal to 1; or
  • the receiving module is configured to receive the feedback information that is transmitted by the UE in a specific resource in a next subframe of the target subframe, where the specific resource passes the TTI length of the downlink transmission in the target subframe.
  • the location is determined, or the specific resource is indicated by higher layer signaling and/or signaling of the downlink TTI.
  • the receiving module is configured to receive the feedback information that is sent by the UE in the s PUCCH format in a next subframe of the target subframe;
  • the receiving module is configured to receive the feedback information that is transmitted by the UE in the s PUSCH format in a next subframe of the target subframe.
  • the target subframe is a time period including z OFDM symbols in a time domain, and a next subframe of the target subframe is a next time period of the target subframe in a time domain.
  • the z is a positive integer greater than or equal to 1.
  • the embodiment of the present disclosure further provides a feedback information transmission system, including:
  • a UE configured to generate feedback information of the target subframe
  • the base station is configured to receive the feedback information that is sent by the UE in a next subframe of a target subframe.
  • the UE generates feedback information of the target subframe; the UE transmits the feedback information to the base station in a next subframe of the target subframe. Since the feedback information of the target subframe is in the next sub-frame of the target subframe The information is transmitted in the frame, so that the feedback information of each TTI in the subframe can be fed back to the base station in time.
  • the feedback information is transmitted in the embodiment of the present disclosure, and the transmission of the feedback information may be suitable for a short TTI or a length. Changed TTI.
  • FIG. 1 is a schematic structural diagram of a network provided by an embodiment of the present disclosure
  • FIG. 2 is a schematic flowchart of a method for transmitting feedback information according to an embodiment of the present disclosure
  • FIG. 3 is a schematic flowchart diagram of another method for transmitting feedback information according to an embodiment of the present disclosure
  • FIG. 4 is a schematic diagram of feedback information transmission according to an embodiment of the present disclosure.
  • FIG. 5 is a schematic diagram of another feedback information transmission provided by an embodiment of the present disclosure.
  • FIG. 6 is a schematic diagram of another feedback information transmission provided by an embodiment of the present disclosure.
  • FIG. 7 is a schematic structural diagram of a UE according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic structural diagram of a base station according to an embodiment of the present disclosure.
  • FIG. 9 is a schematic structural diagram of another UE according to an embodiment of the present disclosure.
  • FIG. 10 is a schematic structural diagram of another base station according to an embodiment of the present disclosure.
  • FIG. 11 is a schematic structural diagram of a feedback information transmission system according to an embodiment of the present disclosure.
  • FIG. 1 is a schematic structural diagram of a network provided by an embodiment of the present disclosure.
  • the base station 11 may be an evolved eNB (evolved Node B) or other base station. It should be noted that the specific type of the base station 11 is not limited in the embodiment of the present disclosure.
  • the base station 11 can establish communication with the UE 12, wherein the network in the figure can indicate that the base station 11 can establish wireless communication with the UE 12, and the UE 12 can be a mobile phone, a tablet personal computer, a laptop computer, and a personal number.
  • a terminal device such as a personal digital assistant (PDA), a mobile Internet device (MID), or a wearable device (Wearable Device), etc.
  • PDA personal digital assistant
  • MID mobile Internet device
  • WPA wearable device
  • UE 12 the specificity of the UE 12 is not limited in the embodiment of the present disclosure. Types of.
  • the embodiment of the present disclosure provides a feedback information transmission method, as shown in FIG. 2, including the following steps:
  • the UE generates feedback information of the target subframe.
  • the UE transmits the feedback information to a base station in a next subframe of the target subframe.
  • the target subframe may be any subframe in the mobile communication system, and the subframe may include a short TTI, or may include a variable length TTI, or may also include a fixed length TTI.
  • the foregoing target subframe may further include one or more TTIs, and when the multiple TTIs are included, the multiple TTIs may be TTIs of different lengths, or may be the same length TTI or the like, which is not limited in this embodiment.
  • next subframe of the target subframe may be understood as the next subframe of the target subframe.
  • the target subframe is the subframe n-1
  • the next subframe is the subframe n. Since the feedback information of the target subframe is transmitted in the next subframe, the feedback information of the target subframe can be fed back to the base station in time.
  • the feedback information of the multiple TTIs can be transmitted to the base station in time, so that the feedback information transmission method can be adapted to a short TTI or a variable length TTI.
  • the foregoing feedback information may include:
  • ACK feedback information of HARQ or NACK feedback information of HARQ.
  • the ACK feedback information of the HARQ of the target subframe or the NACK feedback information of the HARQ may be transmitted in the next subframe.
  • the feedback information is not limited to the ACK feedback information of the HARQ or the NACK feedback information of the HARQ, and may be other ACK feedback information or NACK feedback information that needs to be fed back to the base station, which is not limited in this embodiment. .
  • the foregoing UE generates feedback information of the target subframe, which may include:
  • the UE determines a codebook size of the feedback information of the target subframe, and generates feedback information of the target subframe according to the codebook size.
  • the codebook size may be temporarily determined according to some information, or may be preset by the UE.
  • the generating the feedback information of the target subframe according to the codebook size may be understood as: generating the feedback information of the target subframe in which the codebook is the codebook size.
  • the feedback information of the target subframe may be some bits composed of 0 and 1.
  • the feedback information of the target subframe generated by the UE in the scenario may also be generated in other manners, for example, the UE generates the feedback information of the target subframe in a fixed format or a fixed size, which is not limited in this embodiment.
  • the determining, by the UE, the codebook size of the feedback information of the target subframe may include:
  • the maximum number of downlink TTIs that can be transmitted in the target subframe the number of configured carriers, the DAI information indicated by the base station, the high layer signaling, and the number of transport blocks.
  • the codebook size of the feedback information of the target subframe may be determined according to the one or more kinds of information, for example, the codebook of the feedback information of the target subframe is determined according to any one of the information.
  • the size of the codebook of the feedback information of the target subframe may be determined according to the mapping relationship between the information and the codebook size set in advance; or the codebook size of the feedback information of the target subframe may be determined according to the multiple information, for example:
  • the codebook size is determined according to the maximum downlink transmission time interval TTI and the number of transmission blocks, or the codebook size may be determined according to the maximum downlink transmission time interval TTI that can be transmitted, the number of configured carriers, and the number of transmission blocks.
  • the codebook size may be a preset operation of at least two types of the foregoing information to determine a codebook size of the feedback information of the target sub.
  • the codebook size of the feedback information of the target subframe is the maximum downlink TTI.
  • the product of the number of the number of the transmission blocks, or the codebook size of the feedback information of the target subframe is the product of the maximum number of downlink TTIs and the number of the transmission blocks, and the like, which is not limited in this embodiment.
  • the maximum number of TTIs that can be transmitted in the target subframe is the maximum number of TTIs that can be included in the target subframe.
  • the maximum number of TTIs that can be included in the target subframe can be implemented as the maximum number of transmittable TTIs of the target subframe.
  • the maximum number of TTIs that can be included in the target subframe can be understood as the maximum number of TTIs included in the target subframe.
  • the maximum transmittable TTI of the target subframe is a maximum TTI that can be included in the downlink slot of the target subframe.
  • the number of the special subframes includes at least a downlink time slot and a guard interval.
  • the target subframe is a special subframe, that is, the target subframe includes at least a downlink slot and a guard interval (GP, Guard Period), where the downlink gap may be a downlink transmission slot (DwPTS, Downlink Pilot Time). Slot).
  • the target subframe may further include an UpPTS (Uplink Pilot Time Slot).
  • UpPTS Uplink Pilot Time Slot
  • the maximum number of TTIs that can be included in the downlink time slot of the target subframe can be used as the maximum number of transmittable TTIs of the target subframe.
  • the maximum transmittable TTI number of the target subframe is a maximum transmittable basic in the target subframe.
  • the number of TTIs, the length of the basic TTI is K OFDM symbols, and the K is an integer greater than or equal to 1.
  • the basic TTI may be predefined, for example, the basic TTI is a TTI with a length of 2 OFDM symbols.
  • the maximum number of basic TTIs that can be transmitted in the target subframe may be used as the maximum number of transmittable TTIs of the target subframe.
  • the target subframe includes 10 OFDM symbols, and the target subframe includes 4 TTIs occupying 3, 2, 2, and 3 OFDM symbols, respectively. If the basic TTI length is 2 OFDM symbols, the maximum of the target subframe is obtained.
  • the number of basic TTIs that can be transmitted is 5, that is, the maximum number of TTIs that can be transmitted in the target subframe is 5.
  • the maximum number of transmittable TTIs of the target subframe is determined on the multiple downlink carriers, Or the maximum number of transmit TTIs of the target subframe is the maximum number of downlink TTIs that are transmitted in the target subframe among the multiple downlink carriers.
  • the maximum number of transmittable TTIs of the target subframes of the multiple downlink carriers is determined, for example, the target subframe of each downlink carrier may be
  • the maximum number of TTIs transmitted may be the maximum number of TTIs that can be transmitted.
  • the multiple downlink carriers include carrier 1 and carrier 2, and the target subframe of carrier 1 includes 5 TTIs, and the target subframe of carrier 2 includes 6 TTIs, and the target subframe of carrier 1 can be transmitted the largest.
  • the number of TTIs is 5, and the maximum number of transmittable TTIs of the target subframe of carrier 2 is 6.
  • the maximum downlink TTI transmitted in the target subframe among the multiple downlink carriers may be used as the maximum transmittable maximum TTI of the target subframe, for example, the multiple downlink carriers include carrier 1 And carrier 2, while the target subframe of carrier 1 includes 5 TTIs, while carrier 2 The target subframe includes 6 TTIs, and the maximum number of TTIs that can be transmitted in the target subframe is 6.
  • the DAI information indicated by the base station may include one or more of the following:
  • Time domain C-DAI, T-DAI, and C-DAI in the frequency domain and time domain.
  • the codebook size of the feedback information of the target subframe may be determined according to one or more of C-DAI, T-DAI in the time domain, and C-DAI in the frequency domain and the time domain, for example: Under the condition of double codeword transmission, the time domain C-DAI, T-DAI or frequency domain and time domain C-DAI can be used as the codebook size of the target subframe, or the time domain C- can also be used.
  • the product of DAI, T-DAI, or C-DAI in the frequency domain and time domain and the number of transport blocks is used as the codebook size of the target subframe.
  • the terminal If the UE does not receive the TTI 3 on the carrier 1, but correctly receives all the TTIs of the carrier 2, the terminal generates the feedback bit 00111111 according to the DAI information, and transmits the feedback information in the sPUCCH of the subframe n.
  • the C-DAI in the frequency domain and the time domain may be a TTI index of the downlink data scheduled by the base station, and the C-DAI in the frequency domain and the time domain are according to the pre-frequency domain.
  • the order of the time domain counts the scheduled TTIs.
  • the T-DAI may be a total number of all downlink subframes that the UE needs to feed back in an uplink subframe, and the T-DAI is updated in each subframe in the time domain.
  • the C-DAI of the time domain may be a TTI index of the downlink data scheduled by the base station only in the time domain, and the C-DAI of the time domain counts the TTIs scheduled in the time domain in chronological order.
  • the foregoing high layer signaling and/or transport block data is used to determine a number of feedback bits of each TTI in the target subframe, where:
  • the high-level signaling is used to indicate whether to use the codeword combination. If the combination is performed, the number of feedback bits of each TTI in the target subframe is 1, and if not, the TTI of each target in the target subframe. The number of feedback bits is determined by the carrier transmission mode; or
  • the high layer signaling is a number of feedback bits used to indicate each TTI in the target subframe.
  • the number of transmission blocks is the number of feedback bits of each TTI in the target subframe.
  • the number of feedback bits for determining each TTI in the target subframe according to the high layer signaling and/or the transport block data may be implemented, for example, determining that the number of feedback bits of each TTI is 1 bit, then
  • the codebook size of the target subframe may be the maximum number of TTIs that can be transmitted in the target subframe, and the number of feedback bits of each TTI is determined to be 2 bits, and the codebook size of the target subframe may be the target subframe. 2 times the maximum number of TTIs transmitted.
  • the number of feedback bits of each TTI in the target subframe is determined by the carrier transmission mode. It can be understood that when the carrier transmission mode is the dual codeword transmission mode, the number of feedback bits per TTI in the target subframe is 2. When the carrier transmission mode is the single codeword transmission mode, the number of feedback bits per TTI in the target subframe is 1.
  • the foregoing high layer signaling is used to indicate the number of feedback bits of each TTI in the target subframe, and the base station may indicate, in the feedback information of the target subframe, by using the high layer signaling, regardless of the transmission mode configured.
  • Each carrier feeds back 1 bit or 2 bits of information in each TTI.
  • the feedback bits of the target subframe in one or more carriers may be cascaded according to the carrier number to obtain the codebook of the codebook size to generate feedback information of the target subframe.
  • the feedback bits of the target subframe in each carrier are sorted according to the TTI number, so that feedback bits including multiple TTIs in the target subframe in each carrier are fed back to the base station.
  • the base station schedules the downlink transmission in the downlink TTI 0 to 5 in the carrier 1 subframe n-1, and schedules the downlink transmission in the downlink TTI 0 to 7 in the subframe n-1 of the carrier 2, if the UE correctly receives all The TTI, the feedback bit of the subframe n-1 in the carrier 1 is 1111110000, and the feedback bit of the subframe n-1 in the carrier 2 is 111111110, and the UE can transmit the two levels in the sPUCCH of the carrier 1 subframe n. Feedback information after bit cascading.
  • the foregoing TTI number may be a number that is performed according to an actual transmission sequence of the TTI;
  • the TTI number is a number according to a basic TTI sequence, and the length of the basic TTI is K OFDM symbols, and the K is an integer greater than or equal to 1.
  • the TTI number may be numbered according to the actually transmitted TTI.
  • the base station schedules four downlink TTIs in the carrier 1 subframe n-1, occupying 3, 2, 2, and 3 OFDM symbols, respectively. Then, the four downlink TTIs are numbered 1, 2, 3, and 4, respectively.
  • the TTI number may be a number in the basic TTI order.
  • the number of the TTI received by the UE may be the number of the basic TTI to which the first OFDM symbol of the TTI belongs.
  • the base station schedules three downlink TTIs in carrier 1 subframe n-1, occupying 3, 3, and 4 OFDM symbols respectively, and the basic TTI length is 2 OFDM symbols. Then, the three TTIs are numbered 1 respectively. , 2 and 4.
  • the UE sorts the feedback bits of the target subframe according to the DAI information to obtain a codebook of the codebook size to generate feedback information of the target subframe.
  • the feedback bits may be sorted according to the DAI information to generate feedback information of the target subframe.
  • the base station schedules downlink transmissions in downlink TTIs 5-7 in subframe n-1 of carrier 1, and the corresponding frequency domain and time domain count C-DAI are 1, 2, respectively.
  • the corresponding T-DAI is also 1, 2, and 3, respectively, and the codebook size of the subframe n-1 is 3*2. If the UE does not receive the TTI 6 on Carrier 1, but correctly receives TTI5 and TTI7, the UE generates feedback bit 110011 according to the DAI information, and transmits feedback information in the sPUCCH of the subframe n.
  • the feedback bits of the target subframe in one or more carriers may be cascaded according to the carrier number to obtain the codebook of the codebook size to generate feedback information of the target subframe.
  • the feedback bits of each carrier are sorted according to the DAI information, so that it can be implemented.
  • the target subframe in each carrier is now fed back to the base station to include feedback bits of multiple TTIs.
  • the terminal If the UE does not receive the TTI 3 on the carrier 1, but correctly receives all the TTIs of the carrier 2, the terminal generates the feedback bit 00111111 according to the DAI information, and transmits the feedback information in the sPUCCH of the subframe n.
  • the transmitting, by the UE, the feedback information to the base station in the next subframe of the target subframe may include:
  • the UE transmits the feedback information to a base station in a last x OFDM symbols in a next subframe of the target subframe, where x is an integer greater than or equal to 1.
  • feedback information of the target subframe may be transmitted in the last x OFDM symbols in the next subframe.
  • the feedback information of the target subframe may be transmitted in the last 1 or 2 or 3 OFDM symbols.
  • the feedback information may also be transmitted in the sPUCCH format or the s PUSCH format.
  • the transmitting, by the UE, the feedback information to the base station in the next subframe of the target subframe may include:
  • the specific resource may be determined by the TTI length and location of the downlink transmission in the target subframe, that is, the TTI length and location of the downlink transmission of the transmission resource in the target subframe may be implicitly obtained.
  • the specific transmission resource may be determined according to a TTI length of a downlink transmission in a target subframe and a correspondence between a location and a transmission resource.
  • the foregoing specific resource may also be indicated by the high-layer signaling and/or the signaling of the downlink TTI.
  • the base station may send the high-layer signaling of the transmission resource indicating the feedback information of the transmission target subframe to the UE.
  • the base station may send the signaling for scheduling the downlink TTI to the UE, and the UE may transmit the feedback information of the target subframe on the resource indicated by the signaling by receiving the signaling.
  • the transmitting, by the UE, the feedback information to the base station in the next subframe of the target subframe may include:
  • the UE transmits the feedback information to the base station in an sPUSCH format in a next subframe of the target subframe.
  • the feedback information may be transmitted to the base station by using an sPUCCH or sPUSCH format.
  • the UE may transmit the feedback information of the subframe n-1 through the sPUCCH; or, if the UE does not support the sPUCCH, may also transmit the feedback of the subframe n-1 through the sPUSCH in the subframe n. information.
  • the target subframe is a time period including z OFDM symbols in a time domain
  • a next subframe of the target subframe is a next time period of the target subframe in a time domain.
  • the z is a positive integer greater than or equal to one.
  • the next subframe of the target subframe and the target subframe may be a time segment that is not a subframe in time, for example, the target subframe is a time segment n-1, and the next subframe of the target subframe.
  • the frame is the time period n, that is, the feedback information of the feedback time period n-1 in the time period n can be realized.
  • the foregoing time period including z OFDM symbols can be understood as that the time segment includes only z OFDM symbols, that is, the target subframe and the next subframe of the target subframe may include only z OFDM symbols, for example: All of them include only 4 OFDM symbols or 6 OFDM symbols or 8 OFDM symbols, and the like.
  • the UE generates feedback information of the target subframe; the UE transmits the feedback information to the base station in the next subframe of the target subframe.
  • the feedback information of the target subframe is transmitted in the next subframe of the target subframe, so that the feedback information of each TTI in the subframe can be fed back to the base station in time, and the feedback information is transmitted by three subframes in the related art.
  • the transmission of the feedback information in the example may be suitable for a short TTI or a variable length TTI. That is, when the downlink transmission uses a short TTI length or the TTI length is not fixed, the normal feedback of the feedback information of the downlink transmission is supported.
  • the embodiment of the present disclosure provides another method for transmitting feedback information, as shown in FIG. 3 , including the following steps:
  • the base station receives feedback information that is transmitted by the UE in a next subframe of the target subframe, where the The feed information is feedback information of the target subframe generated by the UE.
  • the feedback information includes:
  • ACK feedback information of HARQ or NACK feedback information of HARQ.
  • the feedback information of the target subframe includes:
  • the UE generates feedback information of the target subframe according to the determined codebook size of the feedback information of the target subframe.
  • the codebook size includes:
  • the specific information includes one or more of the following:
  • the maximum number of downlink TTIs that can be transmitted in the target subframe the number of configured carriers, the DAI information indicated by the base station, the high layer signaling, and the number of transport blocks.
  • the maximum number of TTIs that can be transmitted in the target subframe is the maximum number of TTIs that can be included in the target subframe;
  • the target subframe is a special subframe
  • the maximum number of TTIs that can be transmitted in the target subframe is the maximum number of TTIs that can be included in the downlink slot of the target subframe
  • the special subframe is at least Including downlink time slots and guard intervals
  • the maximum number of TTIs that can be transmitted in the target subframe is the maximum number of basic TTIs that can be transmitted in the target subframe, where the basic TTI is The length is K OFDM symbols, and the K is an integer greater than or equal to 1; or
  • the maximum number of transmittable TTIs of the target subframe is determined separately on the multiple downlink carriers, or the target subframe is transmittable.
  • the maximum number of TTIs is the maximum number of downlink TTIs transmitted in the target subframe among the plurality of downlink carriers.
  • the DAI information indicated by the base station includes one or more of the following:
  • Time domain C-DAI, T-DAI, and C-DAI in the frequency domain and time domain.
  • the C-DAI in the frequency domain and the time domain is a TTI index of the downlink data scheduled by the base station, and the C-DAI in the frequency domain and the time domain are scheduled according to the order of the time domain in the pre-frequency domain. TTI is counted;
  • the T-DAI is the total number of all downlink subframes that the UE needs to feed back in the uplink subframe. And the T-DAI is updated in each subframe on the time domain;
  • the C-DAI of the time domain is a TTI index of the downlink data scheduled by the base station only in the time domain, and the C-DAI of the time domain counts the TTIs scheduled in the time domain in chronological order.
  • the high layer signaling and/or transport block data is used to determine a feedback bit number of each TTI in the target subframe, where:
  • the high-level signaling is used to indicate whether to use the codeword combination. If the combination is performed, the number of feedback bits of each TTI in the target subframe is 1, and if not, the TTI of each target in the target subframe. The number of feedback bits is determined by the carrier transmission mode; or
  • the high layer signaling is a number of feedback bits used to indicate each TTI in the target subframe.
  • the number of transmission blocks is the number of feedback bits of each TTI in the target subframe.
  • the feedback information of the target subframe includes:
  • the UE sorts the feedback bits of the target subframe according to the DAI information, and obtains the codebook of the codebook size to generate feedback information of the target subframe; or
  • the information is sorted.
  • the TTI number is a number according to an actual transmission sequence of the TTI.
  • the TTI number is a number according to a basic TTI sequence, and the length of the basic TTI is K OFDM symbols, and the K is an integer greater than or equal to 1.
  • the number of the TTI received by the UE is the number of the basic TTI to which the first OFDM symbol of the TTI belongs.
  • the receiving, by the base station, the feedback information that is sent by the UE in the next subframe of the target subframe including:
  • a UE Receiving, by the base station, a UE transmitting in a specific resource in a next subframe of the target subframe
  • the feedback information wherein the specific resource is determined by a TTI length and a location of a downlink transmission in the target subframe, or the specific resource is indicated by high layer signaling and/or signaling of a downlink TTI.
  • the receiving, by the base station, the feedback information that is sent by the UE in the next subframe of the target subframe including:
  • the base station receives the feedback information that is transmitted by the UE in the s PUSCH format in the next subframe of the target subframe.
  • the target subframe is a time period including z OFDM symbols in a time domain, and a next subframe of the target subframe is a next time period of the target subframe in a time domain.
  • the z is a positive integer greater than or equal to 1.
  • the present embodiment is an embodiment of the base station side corresponding to the embodiment shown in FIG. 2, and a specific implementation manner of the embodiment may refer to the related description of the embodiment shown in FIG. 2, so as to avoid repeated explanation, this embodiment The embodiment will not be described again.
  • the transmission of the feedback information can also be implemented to be suitable for a short TTI or a variable length TTI.
  • the base station transmits a downlink TTI with a TTI length of 2 OFDM symbols in the subframe n-1, and the feedback information corresponding to the downlink TTIs is in the subframe. Feedback is made in n.
  • FDD frequency division duplex
  • the UE may generate a feedback bit according to the TTI number. Assuming that the UE correctly receives all TTIs under the transmission condition of the single carrier single codeword, the feedback codebook is 7 bits.
  • the sub-frame n includes a plurality of transmission resources of the feedback information, and the base station may pre-configure the plurality of resources to the terminal through RRC signaling, and notify the transmission resource corresponding to the current transmission by using downlink scheduling signaling when scheduling the downlink transmission.
  • the transmission resource of the feedback information occupies 2 OFDM symbol lengths.
  • each subframe may be a special subframe.
  • the base station configures carrier 1 and carrier 2 for the UE, and the downlink TTI in the subframe on carrier 1 10 OFDM symbols, GP occupies 1 OFDM symbol, uplink TTI occupies 3 OFDM symbols, downlink TTI in carrier 2 occupies 9 OFDM symbols, GP occupies 3 OFDM symbols, and uplink TTI occupies 2 OFDM symbols.
  • the base station schedules the downlink transmission on the carrier 1 and the carrier 2 in the subframe n-1, and transmits the downlink TTI with the TTI length of 1 OFDM symbol, and the feedback information corresponding to the downlink TTI is fed back in the subframe n.
  • Manner 1 The UE can generate feedback bits according to the maximum number of downlink TTIs on each carrier. Assuming that the single codeword is transmitted, the base station schedules downlinks in downlink TTIs 0 to 5 in carrier 1 subframe n-1. The downlink transmission in the downlink TTIs 0-7 is scheduled in the subframe n-1 of the carrier 2. If the UE correctly receives all the TTIs, the feedback bits on the carrier 1 are 1111110000, and the feedback bits on the carrier 2 are 111111110. The terminal transmits the cascaded feedback information in the sPUCCH of the carrier 1 subframe n.
  • the UE may generate a feedback bit according to the DAI indicated by the base station.
  • the base station schedules downlink transmission in the downlink TTI 3 in the carrier 1 subframe n-1, corresponding frequency domain and time domain.
  • the corresponding T-DAIs are also 2, 3, and 4 respectively. If the UE does not receive the TTI 3 on the carrier 1, but correctly receives all the TTIs of the carrier 2, the UE may generate the feedback bit 00111111 according to the DAI.
  • the feedback information is transmitted in the sPUCCH of carrier 1 subframe n.
  • each subframe may be a special subframe.
  • the base station configures carrier 1 and carrier 2 for the UE, the downlink TTI in the subframe on carrier 1 occupies 10 OFDM symbols, the GP occupies 1 OFDM symbol, the uplink TTI occupies 3 OFDM symbols, and the subframe on carrier 2 The downlink TTI occupies 10 OFDM symbols, the GP occupies 2 OFDM symbols, and the uplink TTI occupies 2 OFDM symbols.
  • the base station schedules the downlink transmission on the carrier 1 and the carrier 2 in the subframe n-1, and transmits the downlink TTI whose length is the variable length.
  • the feedback information corresponding to the downlink TTI is fed back in the subframe n.
  • the UE may determine the number of feedback bits according to the downlink basic TTI length (2 OFDM symbols). Assuming that the single codeword is transmitted, the base station schedules 4 downlink TTIs in carrier 1 subframe n-1, occupying 3, 2 respectively. 2 and 3 OFDM symbols, 3 downlink TTIs are scheduled in carrier 2 subframe n-1, 3, 3, and 4 OFDM symbols are respectively occupied. If the UE correctly receives all TTIs, the UE may determine a feedback bit position according to the basic TTI to which the first OFDM symbol of the received TTI belongs, and the terminal is on carrier 1. The feedback bit is 11110, the feedback bit 10110 on the carrier 2, and the terminal transmits the feedback information on each carrier in the sPUCCH of the carrier 1 and the carrier 2 subframe n respectively.
  • the UE 70 includes the following modules:
  • the generating module 71 is configured to generate feedback information of the target subframe.
  • the transmitting module 72 is configured to transmit the feedback information to the base station in a next subframe of the target subframe.
  • the feedback information includes:
  • ACK feedback information of HARQ or NACK feedback information of HARQ.
  • the generating module 71 is configured to determine a codebook size of the feedback information of the target subframe, and generate feedback information of the target subframe according to the codebook size.
  • the generating module 71 is configured to determine, according to the specific information, a codebook size of the feedback information of the target subframe, where the specific information includes one or more of the following:
  • the maximum number of downlink TTIs that can be transmitted in the target subframe the number of configured carriers, the DAI information indicated by the base station, the high layer signaling, and the number of transport blocks.
  • the maximum number of TTIs that can be transmitted in the target subframe is the maximum number of TTIs that can be included in the target subframe;
  • the target subframe is a special subframe
  • the maximum number of TTIs that can be transmitted in the target subframe is the maximum number of TTIs that can be included in the downlink slot of the target subframe
  • the special subframe is at least Including downlink time slots and guard intervals
  • the maximum number of TTIs that can be transmitted in the target subframe is the maximum number of basic TTIs that can be transmitted in the target subframe, where the basic TTI is The length is K OFDM symbols, and the K is an integer greater than or equal to 1; or
  • the maximum number of transmittable TTIs of the target subframe is determined separately on the multiple downlink carriers, or the target subframe is transmittable.
  • the maximum number of TTIs is the maximum number of downlink TTIs transmitted in the target subframe among the plurality of downlink carriers.
  • the DAI information indicated by the base station includes one or more of the following:
  • Time domain C-DAI, T-DAI, and C-DAI in the frequency domain and time domain.
  • the C-DAI in the frequency domain and the time domain is a TTI index of the downlink data scheduled by the base station, and the C-DAI in the frequency domain and the time domain are scheduled according to the order of the time domain in the pre-frequency domain. TTI is counted;
  • the T-DAI is a total number of all downlink subframes that the UE needs to feed back in an uplink subframe, and the T-DAI is updated in each subframe in the time domain;
  • the C-DAI of the time domain is a TTI index of the downlink data scheduled by the base station only in the time domain, and the C-DAI of the time domain counts the TTIs scheduled in the time domain in chronological order.
  • the high layer signaling and/or transport block data is used to determine a feedback bit number of each TTI in the target subframe, where:
  • the high-level signaling is used to indicate whether to use the codeword combination. If the combination is performed, the number of feedback bits of each TTI in the target subframe is 1, and if not, the TTI of each target in the target subframe. The number of feedback bits is determined by the carrier transmission mode; or
  • the high layer signaling is a number of feedback bits used to indicate each TTI in the target subframe.
  • the number of transmission blocks is the number of feedback bits of each TTI in the target subframe.
  • the generating module 71 is configured to: categorize feedback bits of the target subframe in the at least one carrier to obtain a codebook of the codebook size, to generate feedback information of the target subframe, where each The feedback bits of the target subframe in the carrier are sorted according to the TTI number; or
  • the generating module 71 may be configured to sort the feedback bits of the target subframe according to the DAI information, to obtain the codebook of the codebook size, to generate feedback information of the target subframe; or
  • the generating module 71 may be configured to cascade the feedback bits of the target subframe in the at least one carrier to obtain the codebook of the codebook size to generate feedback information of the target subframe, where the feedback bits of each carrier Sort by DAI information.
  • the TTI number is a number according to an actual transmission sequence of the TTI.
  • the TTI number is a number according to a basic TTI sequence, and the length of the basic TTI is K OFDM symbols, and the K is an integer greater than or equal to 1.
  • the number of the TTI received by the UE is the number of the basic TTI to which the first OFDM symbol of the TTI belongs.
  • the transmission module 72 can be configured to use the last x in the next subframe of the target subframe. Transmitting the feedback information to a base station in an OFDM symbol, the x being an integer greater than or equal to 1; or
  • the transmitting module 72 may be configured to transmit the feedback information to a base station in a specific resource in a next subframe of the target subframe, where the specific resource passes the TTI length and location of the downlink transmission in the target subframe. Determining, or the specific resource is indicated by higher layer signaling and/or signaling of a downlink TTI.
  • the transmitting module 72 is configured to transmit the feedback information to the base station by using an s PUCCH format in a next subframe of the target subframe; or
  • the transmitting module 72 may be configured to transmit the feedback information to the base station in a s PUSCH format in a next subframe of the target subframe.
  • the target subframe is a time period including z OFDM symbols in a time domain, and a next subframe of the target subframe is a next time period of the target subframe in a time domain.
  • the z is a positive integer greater than or equal to 1.
  • the UE 70 may be the UE in the embodiment shown in FIG. 1 to FIG. 6 , and any implementation manner of the UE in the embodiment shown in FIG. 1 to FIG. 6 may be the foregoing in the embodiment.
  • the UE 70 implements and achieves the same beneficial effects, and details are not described herein again.
  • the base station 80 includes the following modules:
  • the receiving module 81 is configured to receive feedback information that is transmitted by the UE in a next subframe of the target subframe, where the feedback information is feedback information of the target subframe generated by the UE.
  • the feedback information includes:
  • ACK feedback information of HARQ or NACK feedback information of HARQ.
  • the feedback information of the target subframe includes:
  • the UE generates feedback information of the target subframe according to the determined codebook size of the feedback information of the target subframe.
  • the codebook size includes:
  • the specific information includes one or more of the following:
  • the maximum number of downlink TTIs that can be transmitted in the target subframe the number of configured carriers, the DAI information indicated by the base station, the high layer signaling, and the number of transport blocks.
  • the maximum number of TTIs that can be transmitted in the target subframe is the maximum number of TTIs that can be included in the target subframe;
  • the target subframe is a special subframe
  • the maximum number of TTIs that can be transmitted in the target subframe is the maximum number of TTIs that can be included in the downlink slot of the target subframe
  • the special subframe is at least Including downlink time slots and guard intervals
  • the maximum number of TTIs that can be transmitted in the target subframe is the maximum number of basic TTIs that can be transmitted in the target subframe, where the basic TTI is The length is K OFDM symbols, and the K is an integer greater than or equal to 1; or
  • the maximum number of transmittable TTIs of the target subframe is determined separately on the multiple downlink carriers, or the target subframe is transmittable.
  • the maximum number of TTIs is the maximum number of downlink TTIs transmitted in the target subframe among the plurality of downlink carriers.
  • the DAI information indicated by the base station includes one or more of the following:
  • Time domain C-DAI, T-DAI, and C-DAI in the frequency domain and time domain.
  • the C-DAI in the frequency domain and the time domain is a TTI index of the downlink data scheduled by the base station, and the C-DAI in the frequency domain and the time domain are scheduled according to the order of the time domain in the pre-frequency domain. TTI is counted;
  • the T-DAI is a total number of all downlink subframes that the UE needs to feed back in an uplink subframe, and the T-DAI is updated in each subframe in the time domain;
  • the C-DAI of the time domain is a TTI index of the downlink data scheduled by the base station only in the time domain, and the C-DAI of the time domain counts the TTIs scheduled in the time domain in chronological order.
  • the high layer signaling and/or transport block data is used to determine a feedback bit number of each TTI in the target subframe, where:
  • the high-level signaling is used to indicate whether to use the codeword combination. If the combination is performed, the number of feedback bits of each TTI in the target subframe is 1, and if not, the TTI of each target in the target subframe. The number of feedback bits is determined by the carrier transmission mode; or
  • the high layer signaling is a number of feedback bits used to indicate each TTI in the target subframe.
  • the number of transmission blocks is the number of feedback bits of each TTI in the target subframe.
  • the feedback information of the target subframe includes:
  • the UE sorts the feedback bits of the target subframe according to the DAI information, and obtains the codebook of the codebook size to generate feedback information of the target subframe; or
  • the information is sorted.
  • the TTI number is a number according to an actual transmission sequence of the TTI.
  • the TTI number is a number according to a basic TTI sequence, and the length of the basic TTI is K OFDM symbols, and the K is an integer greater than or equal to 1.
  • the number of the TTI received by the UE is the number of the basic TTI to which the first OFDM symbol of the TTI belongs.
  • the receiving module 81 is configured to receive, by the base station, the feedback information that is transmitted by the UE in the last x OFDM symbols in a next subframe of the target subframe, where x is an integer greater than or equal to 1. ;or
  • the receiving module 81 may be configured to receive the feedback information that is transmitted by the UE in a specific resource in a next subframe of the target subframe, where the specific resource passes the TTI length of the downlink transmission in the target subframe.
  • the location is determined, or the specific resource is indicated by higher layer signaling and/or signaling of the downlink TTI.
  • the receiving module 81 is configured to receive, by using, the feedback information that is sent by the UE in the s PUCCH format in a next subframe of the target subframe; or
  • the receiving module 81 may be configured to receive the feedback information that is transmitted by the UE in the s PUSCH format in the next subframe of the target subframe.
  • the target subframe is a time period including z OFDM symbols in a time domain, and a next subframe of the target subframe is a next time period of the target subframe in a time domain.
  • the z is a positive integer greater than or equal to 1.
  • the foregoing base station 80 may be the base station in the embodiment shown in FIG. 1 to FIG. 6. Any embodiment of the base station in the embodiment shown in FIG. 1 to FIG. 6 may be used in this embodiment. On The base station 80 is implemented, and achieves the same beneficial effects, and details are not described herein again.
  • the base station includes: a processor 900, a transceiver 910, a memory 920, a user interface 930, and a bus interface, where:
  • the processor 900 is configured to read a program in the memory 920 and perform the following process:
  • the feedback information is transmitted to the base station by the transceiver 910 in the next subframe of the target subframe.
  • the transceiver 910 is configured to receive and transmit data under the control of the processor 900.
  • the bus architecture may include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 900 and various circuits of memory represented by memory 920.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein.
  • the bus interface provides an interface.
  • Transceiver 910 can be a plurality of components, including a transmitter and a receiver, providing means for communicating with various other devices on a transmission medium.
  • the user interface 930 may also be an interface capable of externally connecting the required devices, including but not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.
  • the processor 900 is responsible for managing the bus architecture and general processing, and the memory 920 can store data used by the processor 900 in performing operations.
  • the feedback information includes:
  • ACK feedback information of HARQ or NACK feedback information of HARQ.
  • the generating the feedback information of the target subframe includes:
  • the determining a codebook size of the feedback information of the target subframe includes:
  • the maximum number of downlink TTIs that can be transmitted in the target subframe the number of configured carriers, the downlink configuration index value (DAI, Downlink Assignment Index) information indicated by the base station, the high layer signaling, and the number of transport blocks.
  • DAI Downlink Assignment Index
  • the maximum number of TTIs that can be transmitted in the target subframe is the maximum number of TTIs that can be included in the target subframe;
  • the target subframe is a special subframe
  • the maximum number of TTIs that can be transmitted in the target subframe is the maximum number of TTIs that can be included in the downlink slot of the target subframe
  • the special subframe is at least Including downlink time slots and guard intervals
  • the maximum number of TTIs that can be transmitted in the target subframe is the maximum number of basic TTIs that can be transmitted in the target subframe, where the basic TTI is The length is K OFDM symbols, and the K is an integer greater than or equal to 1; or
  • the maximum number of transmittable TTIs of the target subframe is determined separately on the multiple downlink carriers, or the target subframe is transmittable.
  • the maximum number of TTIs is the maximum number of downlink TTIs transmitted in the target subframe among the plurality of downlink carriers.
  • the DAI information indicated by the base station includes one or more of the following:
  • the time domain counts the downlink configuration index values C-DAI, T-DAI, and the C-DAI in the frequency domain and the time domain.
  • the C-DAI in the frequency domain and the time domain is a TTI index of the downlink data scheduled by the base station, and the C-DAI in the frequency domain and the time domain are scheduled according to the order of the time domain in the pre-frequency domain. TTI is counted;
  • the T-DAI is a total number of all downlink subframes that the UE needs to feed back in an uplink subframe, and the T-DAI is updated in each subframe in the time domain;
  • the C-DAI of the time domain is a TTI index of the downlink data scheduled by the base station only in the time domain, and the C-DAI of the time domain counts the TTIs scheduled in the time domain in chronological order.
  • the high layer signaling and/or transport block data is used to determine a feedback bit number of each TTI in the target subframe, where:
  • the high-level signaling is used to indicate whether to use the codeword combination. If the combination is performed, the number of feedback bits of each TTI in the target subframe is 1, and if not, the TTI of each target in the target subframe. The number of feedback bits is determined by the carrier transmission mode; or
  • the high layer signaling is a number of feedback bits used to indicate each TTI in the target subframe.
  • the number of transmission blocks is the number of feedback bits of each TTI in the target subframe.
  • the generating the feedback information of the target subframe according to the codebook size includes:
  • the feedback bits of the target subframe are sorted according to the DAI information to obtain the codebook of the codebook size to generate feedback information of the target subframe;
  • the feedback bits of the target subframe in the at least one carrier are concatenated to obtain the codebook of the codebook size to generate feedback information of the target subframe, wherein the feedback bits of each carrier are sorted according to the DAI information.
  • the TTI number is a number according to an actual transmission sequence of the TTI.
  • the TTI number is a number according to a basic TTI sequence, and the length of the basic TTI is K OFDM symbols, and the K is an integer greater than or equal to 1.
  • the number of the TTI received by the UE is the number of the basic TTI to which the first OFDM symbol of the TTI belongs.
  • the transmitting the feedback information to the base station in the next subframe of the target subframe includes:
  • the resources are indicated by higher layer signaling and/or scheduling signaling of the downlink TTI.
  • the transmitting the feedback information to the base station in the next subframe of the target subframe includes:
  • the feedback information is transmitted to the base station in the sPUSCH format in the next subframe of the target subframe.
  • the target subframe is a time period including z OFDM symbols in a time domain, and a next subframe of the target subframe is a next time period of the target subframe in a time domain.
  • the z is a positive integer greater than or equal to 1.
  • the UE may be the UE in the embodiment shown in FIG. 1 to FIG. 6 , and any implementation manner of the UE in the embodiment shown in FIG. 1 to FIG. 6 may be the foregoing in the embodiment.
  • the UE implements and achieves the same beneficial effects, and details are not described herein again.
  • a structure of a base station including: a processor 1000, a transceiver 1010, a memory 1020, a user interface 1030, and a bus interface, wherein:
  • the processor 1000 is configured to read a program in the memory 1020 and perform the following process:
  • the feedback information transmitted by the UE in the next subframe of the target subframe is received by the transceiver 1010, and the feedback information is feedback information of the target subframe generated by the UE.
  • the transceiver 1010 is configured to receive and transmit data under the control of the processor 1000.
  • the bus architecture can include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 1000 and various circuits of memory represented by memory 1020.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein.
  • the bus interface provides an interface.
  • the transceiver 1010 can be a plurality of components, including a transmitter and a receiver, providing means for communicating with various other devices on a transmission medium.
  • the user interface 1030 may also be an interface capable of externally connecting the required devices, including but not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.
  • the processor 1000 is responsible for managing the bus architecture and general processing, and the memory 1020 can store data used by the processor 1000 in performing operations.
  • the feedback information includes:
  • ACK feedback information of HARQ or NACK feedback information of HARQ.
  • the feedback information of the target subframe includes:
  • the UE generates feedback information of the target subframe according to the determined codebook size of the feedback information of the target subframe.
  • the codebook size includes:
  • the specific information includes one or more of the following:
  • the maximum number of downlink TTIs that can be transmitted in the target subframe the number of configured carriers, the DAI information indicated by the base station, the high layer signaling, and the number of transport blocks.
  • the maximum number of TTIs that can be transmitted in the target subframe is the maximum number of TTIs that can be included in the target subframe;
  • the target subframe is a special subframe
  • the maximum number of TTIs that can be transmitted in the target subframe is the maximum number of TTIs that can be included in the downlink slot of the target subframe
  • the special subframe is at least Including downlink time slots and guard intervals
  • the maximum number of TTIs that can be transmitted in the target subframe is the maximum number of basic TTIs that can be transmitted in the target subframe, where the basic TTI is The length is K OFDM symbols, and the K is an integer greater than or equal to 1; or
  • the maximum number of transmittable TTIs of the target subframe is determined separately on the multiple downlink carriers, or the target subframe is transmittable.
  • the maximum number of TTIs is the maximum number of downlink TTIs transmitted in the target subframe among the plurality of downlink carriers.
  • the DAI information indicated by the base station includes one or more of the following:
  • Time domain C-DAI, T-DAI, and C-DAI in the frequency domain and time domain.
  • the C-DAI in the frequency domain and the time domain is a TTI index of the downlink data scheduled by the base station, and the C-DAI in the frequency domain and the time domain are scheduled according to the order of the time domain in the pre-frequency domain. TTI is counted;
  • the T-DAI is a total number of all downlink subframes that the UE needs to feed back in an uplink subframe, and the T-DAI is updated in each subframe in the time domain;
  • the C-DAI of the time domain is a TTI index of the downlink data scheduled by the base station only in the time domain, and the C-DAI of the time domain counts the TTIs scheduled in the time domain in chronological order.
  • the high layer signaling and/or transport block data is used to determine a feedback bit number of each TTI in the target subframe, where:
  • the high-level signaling is used to indicate whether to use the codeword combination. If the combination is performed, the number of feedback bits of each TTI in the target subframe is 1, and if not, the TTI of each target in the target subframe. The number of feedback bits is determined by the carrier transmission mode; or
  • the high layer signaling is a number of feedback bits used to indicate each TTI in the target subframe.
  • the number of transmission blocks is the number of feedback bits of each TTI in the target subframe.
  • the feedback information of the target subframe includes:
  • the UE sorts the feedback bits of the target subframe according to the DAI information, and obtains the codebook of the codebook size to generate feedback information of the target subframe; or
  • the information is sorted.
  • the TTI number is a number according to an actual transmission sequence of the TTI.
  • the TTI number is a number according to a basic TTI sequence, and the length of the basic TTI is K OFDM symbols, and the K is an integer greater than or equal to 1.
  • the number of the TTI received by the UE is the number of the basic TTI to which the first OFDM symbol of the TTI belongs.
  • the receiving information that is sent by the UE in the next subframe of the target subframe includes:
  • the UE Receiving, by the UE, the feedback information transmitted in a specific resource in a next subframe of the target subframe, where the specific resource is determined by a TTI length and a location of a downlink transmission in the target subframe, or Specific resources are indicated by higher layer signaling and/or signaling of downlink TTI scheduling.
  • the receiving information that is sent by the UE in the next subframe of the target subframe includes:
  • the target subframe is a time period including z OFDM symbols in a time domain, and a next subframe of the target subframe is a next time period of the target subframe in a time domain.
  • the z is a positive integer greater than or equal to 1.
  • the foregoing base station may be the base station in the embodiment shown in FIG. 1 to FIG. 6, and any implementation manner of the base station in the embodiment shown in FIG. 1 to FIG. 6 may be the foregoing in the embodiment.
  • the base station implements and achieves the same beneficial effects, and details are not described herein again.
  • a feedback information transmission system including:
  • the UE 111 is configured to generate feedback information of the target subframe.
  • the UE 111 transmits the feedback information to the base station 112 in a next subframe of the target subframe;
  • the base station 112 is configured to receive the feedback information that is transmitted by the UE 111 in a next subframe of a target subframe.
  • the UE 111 and the base station 112 may be the UE and the base station described in the embodiments shown in FIG. 1 to FIG. 10, and the implementation manners of the UE and the base station shown in FIG. 1 to FIG. 10 can also achieve the same technology. The effect will not be described here.
  • the disclosed method and apparatus may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • each functional unit in various embodiments of the present disclosure may be integrated into one processing unit, or each unit may be physically included separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.
  • the above-described integrated unit implemented in the form of a software functional unit can be stored in a computer readable storage medium.
  • the above software functional unit is stored in a storage medium and includes a plurality of instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform part of the steps of the transceiving method of the various embodiments of the present disclosure.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a disk or an optical disk, and the like.

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Abstract

本公开提供一种反馈信息传输方法、UE、基站和系统,该方法可包括:UE生成目标子帧的反馈信息;所述UE在所述目标子帧的下一个子帧中向基站传输所述反馈信息,本公开实施例中反馈信息的传输可以适合于短TTI或者长度可变的TTI。

Description

一种反馈信息传输方法、UE、基站和系统
相关申请的交叉引用
本申请主张在2016年5月13日在中国提交的中国专利申请号No.201610319163.5的优先权,其全部内容通过引用包含于此。
技术领域
本公开涉及通信技术领域,特别涉及一种反馈信息传输方法、用户终端(UE,User Equipment)、基站和系统。
背景技术
随着移动通信业务需求的发展变化,很多通信组织对未来移动通信系统定义了更高用户面时延性能要求。其中,缩短用户面时延性能的主要方法是,降低传输时间间隔(TTI,Transmission Time Interval)长度,即在未来会出现短TTI或者长度可变的TTI。例如:一个子帧中可以包含多个TTI。但目前的反馈信息的传输方案都是基于固定长度TTI进行反馈的,例如:子帧n的反馈信息是在子帧n+4中进行反馈。而对于短TTI或者长度可变的TTI,那么,子帧n与子帧n+4之间就可能会存在很多个TTI,这样反馈信息的传输性能就很低。可见,相关技术中的反馈信息的传输是无法适合于短TTI或者长度可变的TTI。
发明内容
本公开的目的在于提供一种反馈信息传输方法、UE、基站和系统,解决了反馈信息的传输无法适合于短TTI或者长度可变的TTI的问题。
为了达到上述目的,本公开实施例提供一种反馈信息传输方法,包括:
UE生成目标子帧的反馈信息;
所述UE在所述目标子帧的下一个子帧中向基站传输所述反馈信息。
可选的,所述反馈信息包括:
混合自动重传请求(HARQ,Hybrid Automatic Repeat re Quest)的肯定 确认(ACK,ACKnowledgement)反馈信息或者HARQ的否定确认(NACK,Non-ACKnowledgement)反馈信息。
可选的,所述UE生成目标子帧的反馈信息,包括:
所述UE确定所述目标子帧的反馈信息的码本大小,根据所述码本大小生成所述目标子帧的反馈信息。
可选的,所述UE确定所述目标子帧的反馈信息的码本大小,包括:
所述UE根据特定信息确定所述目标子帧的反馈信息的码本大小,其中,所述特定信息包括如下一种或者多种:
所述目标子帧的可传输的最大下行TTI个数、配置载波个数、所述基站指示的下行配置索引值(DAI,DownlinkAssignmentIndex)信息、高层信令和传输块个数。
可选的,若所述目标子帧为下行子帧,则所述目标子帧的可传输的最大TTI个数为所述目标子帧可包含的最大TTI个数;或者
若所述目标子帧为特殊子帧,则所述目标子帧的可传输的最大TTI个数为所述目标子帧的下行时隙中可包含的最大TTI个数,所述特殊子帧至少包括下行时隙和保护间隔;或者
若所述目标子帧中存在不同TTI长度的下行数据,则所述目标子帧的可传输的最大TTI个数为所述目标子帧中最大可传输的基本TTI个数,所述基本TTI的长度为K个正交频分复用技术(OFDM,Orthogonal Frequency Division Multiplexing)符号,所述K为大于或者等于1的整数;或者
若所述基站为所述UE配置了多个下行载波,则所述目标子帧的可传输的最大TTI个数在所述多个下行载波上分别进行确定,或者所述目标子帧的可传输的最大TTI个数为所述多个下行载波中在所述目标子帧中传输的最大下行TTI个数。
可选的,所述基站指示的DAI信息包括如下一种或者多种:
时域的计数下行配置索引值计数下行配置索引值(C-DAI,Count Downlink Assignment Index)、总下行配置索引值(T-DAI,Total Downlink Assignment Index)以及频域和时域的C-DAI。
可选的,所述频域和时域的C-DAI是所述基站调度下行数据的TTI索引, 且所述频域和时域的C-DAI是按照先频域后时域的顺序对调度的TTI进行计数的;
所述T-DAI是所述UE需要在上行子帧中反馈的所有下行子帧的总数,且所述T-DAI在时域上的每个子帧中更新;
所述时域的C-DAI是所述基站仅对时域上调度的下行数据的TTI索引,且所述时域的C-DAI是按照时间顺序对时域上调度的TTI进行计数的。
可选的,所述高层信令和/或传输块个数据用于确定所述目标子帧中每个TTI的反馈比特数,其中:
所述高层信令为用于指示是否使用码字合并,若合并,则所述目标子帧中每个TTI的反馈比特数为1,若不合并,则所述目标子帧中每个TTI的反馈比特数由载波传输模式确定;或者
所述高层信令为用于指示所述目标子帧中每个TTI的反馈比特数;或者
所述传输块个数为所述目标子帧中每个TTI的反馈比特数。
可选的,所述UE根据所述码本大小生成所述目标子帧的反馈信息,包括:
所述UE将至少一个载波中的目标子帧的反馈比特进行级联得到所述码本大小的码本,以生成所述目标子帧的反馈信息,其中,每个载波中的目标子帧的反馈比特按照TTI编号进行排序;或者
所述UE将所述目标子帧的反馈比特按照DAI信息进行排序,得到所述码本大小的码本,以生成所述目标子帧的反馈信息;或者
所述UE将至少一个载波中的目标子帧的反馈比特进行级联得到所述码本大小的码本,以生成所述目标子帧的反馈信息,其中,每个载波的反馈比特按照DAI信息进行排序。
可选的,所述TTI编号为按照TTI实际传输顺序进行的编号;或者
所述TTI编号为按照基本TTI顺序进行的编号,所述基本TTI的长度为K个OFDM符号,所述K为大于或者等于1的整数。
可选的,所述TTI编号为按照基本TTI顺序进行的编号时,所述UE接收到的TTI的编号为该TTI的第一个OFDM符号所属的基本TTI的编号。
可选的,所述UE在所述目标子帧的下一个子帧中向基站传输所述反馈 信息,包括:
所述UE在所述目标子帧的下一个子帧中最后x个OFDM符号中向基站传输所述反馈信息,所述x为大于或者等于1的整数;或者
所述UE在所述目标子帧的下一个子帧中的特定资源中向基站传输所述反馈信息,其中,所述特定资源通过所述目标子帧中下行传输的TTI长度和位置确定,或者所述特定资源通过高层信令和/或调度下行TTI的信令指示。
可选的,所述UE在所述目标子帧的下一个子帧中向基站传输所述反馈信息,包括:
所述UE在所述目标子帧的下一个子帧中采用短物理上行链路控制信道(s PUCCH,Short Physical Uplink Control Channel)格式向基站传输所述反馈信息;或者
所述UE在所述目标子帧的下一个子帧中采用短物理上行共享信道(s PUSCH,Short Physical Uplink Shared Channel)格式向基站传输所述反馈信息。
可选的,所述目标子帧在时域上为包括z个OFDM符号的时间段,所述目标子帧的下一个子帧在时域上为所述目标子帧的时间段的下一个所述时间段,所述z为大于或者等于1的正整数。
本公开实施例还提供一种反馈信息传输方法,包括:
基站接收UE在目标子帧的下一个子帧中传输的反馈信息,所述反馈信息为所述UE生成的所述目标子帧的反馈信息。
可选的,所述反馈信息包括:
HARQ的ACK反馈信息或者HARQ的NACK反馈信息。
可选的,所述目标子帧的反馈信息,包括:
所述UE根据确定的所述目标子帧的反馈信息的码本大小生成的所述目标子帧的反馈信息。
可选的,所述码本大小,包括:
所述UE根据特定信息确定的所述目标子帧的反馈信息的码本大小,其中,所述特定信息包括如下一种或者多种:
所述目标子帧的可传输的最大下行TTI个数、配置载波个数、所述基站指示的DAI信息、高层信令和传输块个数。
可选的,若所述目标子帧为下行子帧,则所述目标子帧的可传输的最大TTI个数为所述目标子帧可包含的最大TTI个数;或者
若所述目标子帧为特殊子帧,则所述目标子帧的可传输的最大TTI个数为所述目标子帧的下行时隙中可包含的最大TTI个数,所述特殊子帧至少包括下行时隙和保护间隔;或者
若所述目标子帧中存在不同TTI长度的下行数据,则所述目标子帧的可传输的最大TTI个数为所述目标子帧中最大可传输的基本TTI个数,所述基本TTI的长度为K个OFDM符号,所述K为大于或者等于1的整数;或者
若所述基站为所述UE配置了多个下行载波,则所述目标子帧的可传输的最大TTI个数在所述多个下行载波上分别进行确定,或者所述目标子帧的可传输的最大TTI个数为所述多个下行载波中在所述目标子帧中传输的最大下行TTI个数。
可选的,所述基站指示的DAI信息包括如下一种或者多种:
时域的C-DAI、T-DAI以及频域和时域的C-DAI。
可选的,所述频域和时域的C-DAI是所述基站调度下行数据的TTI索引,且所述频域和时域的C-DAI是按照先频域后时域的顺序对调度的TTI进行计数的;
所述T-DAI是所述UE需要在上行子帧中反馈的所有下行子帧的总数,且所述T-DAI在时域上的每个子帧中更新;
所述时域的C-DAI是所述基站仅对时域上调度的下行数据的TTI索引,且所述时域的C-DAI是按照时间顺序对时域上调度的TTI进行计数的。
可选的,所述高层信令和/或传输块个数据用于确定所述目标子帧中每个TTI的反馈比特数,其中:
所述高层信令为用于指示是否使用码字合并,若合并,则所述目标子帧中每个TTI的反馈比特数为1,若不合并,则所述目标子帧中每个TTI的反馈比特数由载波传输模式确定;或者
所述高层信令为用于指示所述目标子帧中每个TTI的反馈比特数;或者
所述传输块个数为所述目标子帧中每个TTI的反馈比特数。
可选的,所述目标子帧的反馈信息,包括:
所述UE将至少一个载波中的目标子帧的反馈比特进行级联得到所述码本大小的码本,以生成的所述目标子帧的反馈信息,其中,每个载波中的目标子帧的反馈比特按照TTI编号进行排序;或者
所述UE将所述目标子帧的反馈比特按照DAI信息进行排序,得到所述码本大小的码本,以生成的所述目标子帧的反馈信息;或者
所述UE将至少一个载波中的目标子帧的反馈比特进行级联得到所述码本大小的码本,以生成的所述目标子帧的反馈信息,其中,每个载波的反馈比特按照DAI信息进行排序。
可选的,所述TTI编号为按照TTI实际传输顺序进行的编号;或者
所述TTI编号为按照基本TTI顺序进行的编号,所述基本TTI的长度为K个OFDM符号,所述K为大于或者等于1的整数。
可选的,所述TTI编号为按照基本TTI顺序进行的编号时,所述UE接收到的TTI的编号为该TTI的第一个OFDM符号所属的基本TTI的编号。
可选的,所述基站接收UE在目标子帧的下一个子帧中传输的反馈信息,包括:
所述基站接收UE在所述目标子帧的下一个子帧中最后x个OFDM符号中传输的所述反馈信息,所述x为大于或者等于1的整数;或者
所述基站接收UE在所述目标子帧的下一个子帧中的特定资源中传输的所述反馈信息,其中,所述特定资源通过所述目标子帧中下行传输的TTI长度和位置确定,或者所述特定资源通过高层信令和/或调度下行TTI的信令指不。
可选的,所述基站接收UE在目标子帧的下一个子帧中传输的反馈信息,包括:
所述基站接收UE在所述目标子帧的下一个子帧中采用s PUCCH格式传输的所述反馈信息;或者
所述基站接收UE在所述目标子帧的下一个子帧中采用s PUSCH格式传输的所述反馈信息。
可选的,所述目标子帧在时域上为包括z个OFDM符号的时间段,所述目标子帧的下一个子帧在时域上为所述目标子帧的时间段的下一个所述时间 段,所述z为大于或者等于1的正整数。
本公开实施例还提供一种UE,包括:
生成模块,用于生成目标子帧的反馈信息;
传输模块,用于在所述目标子帧的下一个子帧中向基站传输所述反馈信息。
可选的,所述反馈信息包括:
HARQ的ACK反馈信息或者HARQ的NACK反馈信息。
可选的,所述生成模块用于确定所述目标子帧的反馈信息的码本大小,根据所述码本大小生成所述目标子帧的反馈信息。
可选的,所述生成模块用于根据特定信息确定所述目标子帧的反馈信息的码本大小,其中,所述特定信息包括如下一种或者多种:
所述目标子帧的可传输的最大下行TTI个数、配置载波个数、所述基站指示的DAI信息、高层信令和传输块个数。
可选的,若所述目标子帧为下行子帧,则所述目标子帧的可传输的最大TTI个数为所述目标子帧可包含的最大TTI个数;或者
若所述目标子帧为特殊子帧,则所述目标子帧的可传输的最大TTI个数为所述目标子帧的下行时隙中可包含的最大TTI个数,所述特殊子帧至少包括下行时隙和保护间隔;或者
若所述目标子帧中存在不同TTI长度的下行数据,则所述目标子帧的可传输的最大TTI个数为所述目标子帧中最大可传输的基本TTI个数,所述基本TTI的长度为K个OFDM符号,所述K为大于或者等于1的整数;或者
若所述基站为所述UE配置了多个下行载波,则所述目标子帧的可传输的最大TTI个数在所述多个下行载波上分别进行确定,或者所述目标子帧的可传输的最大TTI个数为所述多个下行载波中在所述目标子帧中传输的最大下行TTI个数。
可选的,所述基站指示的DAI信息包括如下一种或者多种:
时域的C-DAI、T-DAI以及频域和时域的C-DAI。
可选的,所述频域和时域的C-DAI是所述基站调度下行数据的TTI索引,且所述频域和时域的C-DAI是按照先频域后时域的顺序对调度的TTI进行计 数的;
所述T-DAI是所述UE需要在上行子帧中反馈的所有下行子帧的总数,且所述T-DAI在时域上的每个子帧中更新;
所述时域的C-DAI是所述基站仅对时域上调度的下行数据的TTI索引,且所述时域的C-DAI是按照时间顺序对时域上调度的TTI进行计数的。
可选的,所述高层信令和/或传输块个数据用于确定所述目标子帧中每个TTI的反馈比特数,其中:
所述高层信令为用于指示是否使用码字合并,若合并,则所述目标子帧中每个TTI的反馈比特数为1,若不合并,则所述目标子帧中每个TTI的反馈比特数由载波传输模式确定;或者
所述高层信令为用于指示所述目标子帧中每个TTI的反馈比特数;或者
所述传输块个数为所述目标子帧中每个TTI的反馈比特数。
可选的,所述生成模块用于将至少一个载波中的目标子帧的反馈比特进行级联得到所述码本大小的码本,以生成所述目标子帧的反馈信息,其中,每个载波中的目标子帧的反馈比特按照TTI编号进行排序;或者
所述生成模块用于将所述目标子帧的反馈比特按照DAI信息进行排序,得到所述码本大小的码本,以生成所述目标子帧的反馈信息;或者
所述生成模块用于将至少一个载波中的目标子帧的反馈比特进行级联得到所述码本大小的码本,以生成所述目标子帧的反馈信息,其中,每个载波的反馈比特按照DAI信息进行排序。
可选的,所述TTI编号为按照TTI实际传输顺序进行的编号;或者
所述TTI编号为按照基本TTI顺序进行的编号,所述基本TTI的长度为K个OFDM符号,所述K为大于或者等于1的整数。
可选的,所述TTI编号为按照基本TTI顺序进行的编号时,所述UE接收到的TTI的编号为该TTI的第一个OFDM符号所属的基本TTI的编号。
可选的,所述传输模块用于在所述目标子帧的下一个子帧中最后x个OFDM符号中向基站传输所述反馈信息,所述x为大于或者等于1的整数;或者
所述传输模块用于在所述目标子帧的下一个子帧中的特定资源中向基站 传输所述反馈信息,其中,所述特定资源通过所述目标子帧中下行传输的TTI长度和位置确定,或者所述特定资源通过高层信令和/或调度下行TTI的信令指示。
可选的,所述传输模块用于在所述目标子帧的下一个子帧中采用s PUCCH格式向基站传输所述反馈信息;或者
所述传输模块用于在所述目标子帧的下一个子帧中采用sPUSCH格式向基站传输所述反馈信息。
可选的,所述目标子帧在时域上为包括z个OFDM符号的时间段,所述目标子帧的下一个子帧在时域上为所述目标子帧的时间段的下一个所述时间段,所述z为大于或者等于1的正整数。
本公开实施例还提供一种基站,包括:
接收模块,用于接收UE在目标子帧的下一个子帧中传输的反馈信息,所述反馈信息为所述UE生成的所述目标子帧的反馈信息。
可选的,所述反馈信息包括:
HARQ的ACK反馈信息或者HARQ的NACK反馈信息。
可选的,所述目标子帧的反馈信息,包括:
所述UE根据确定的所述目标子帧的反馈信息的码本大小生成的所述目标子帧的反馈信息。
可选的,所述码本大小,包括:
所述UE根据特定信息确定的所述目标子帧的反馈信息的码本大小,其中,所述特定信息包括如下一种或者多种:
所述目标子帧的可传输的最大下行TTI个数、配置载波个数、所述基站指示的DAI信息、高层信令和传输块个数。
可选的,若所述目标子帧为下行子帧,则所述目标子帧的可传输的最大TTI个数为所述目标子帧可包含的最大TTI个数;或者
若所述目标子帧为特殊子帧,则所述目标子帧的可传输的最大TTI个数为所述目标子帧的下行时隙中可包含的最大TTI个数,所述特殊子帧至少包括下行时隙和保护间隔;或者
若所述目标子帧中存在不同TTI长度的下行数据,则所述目标子帧的可 传输的最大TTI个数为所述目标子帧中最大可传输的基本TTI个数,所述基本TTI的长度为K个OFDM符号,所述K为大于或者等于1的整数;或者
若所述基站为所述UE配置了多个下行载波,则所述目标子帧的可传输的最大TTI个数在所述多个下行载波上分别进行确定,或者所述目标子帧的可传输的最大TTI个数为所述多个下行载波中在所述目标子帧中传输的最大下行TTI个数。
可选的,所述基站指示的DAI信息包括如下一种或者多种:
时域的C-DAI、T-DAI以及频域和时域的C-DAI。
可选的,所述频域和时域的C-DAI是所述基站调度下行数据的TTI索引,且所述频域和时域的C-DAI是按照先频域后时域的顺序对调度的TTI进行计数的;
所述T-DAI是所述UE需要在上行子帧中反馈的所有下行子帧的总数,且所述T-DAI在时域上的每个子帧中更新;
所述时域的C-DAI是所述基站仅对时域上调度的下行数据的TTI索引,且所述时域的C-DAI是按照时间顺序对时域上调度的TTI进行计数的。
可选的,所述高层信令和/或传输块个数据用于确定所述目标子帧中每个TTI的反馈比特数,其中:
所述高层信令为用于指示是否使用码字合并,若合并,则所述目标子帧中每个TTI的反馈比特数为1,若不合并,则所述目标子帧中每个TTI的反馈比特数由载波传输模式确定;或者
所述高层信令为用于指示所述目标子帧中每个TTI的反馈比特数;或者
所述传输块个数为所述目标子帧中每个TTI的反馈比特数。
可选的,所述目标子帧的反馈信息,包括:
所述UE将至少一个载波中的目标子帧的反馈比特进行级联得到所述码本大小的码本,以生成的所述目标子帧的反馈信息,其中,每个载波中的目标子帧的反馈比特按照TTI编号进行排序;或者
所述UE将所述目标子帧的反馈比特按照DAI信息进行排序,得到所述码本大小的码本,以生成的所述目标子帧的反馈信息;或者
所述UE将至少一个载波中的目标子帧的反馈比特进行级联得到所述码 本大小的码本,以生成的所述目标子帧的反馈信息,其中,每个载波的反馈比特按照DAI信息进行排序。
可选的,所述TTI编号为按照TTI实际传输顺序进行的编号;或者
所述TTI编号为按照基本TTI顺序进行的编号,所述基本TTI的长度为K个OFDM符号,所述K为大于或者等于1的整数。
可选的,所述TTI编号为按照基本TTI顺序进行的编号时,所述UE接收到的TTI的编号为该TTI的第一个OFDM符号所属的基本TTI的编号。
可选的,所述接收模块用于接收UE在所述目标子帧的下一个子帧中最后x个OFDM符号中传输的所述反馈信息,所述x为大于或者等于1的整数;或者
所述接收模块用于接收UE在所述目标子帧的下一个子帧中的特定资源中传输的所述反馈信息,其中,所述特定资源通过所述目标子帧中下行传输的TTI长度和位置确定,或者所述特定资源通过高层信令和/或调度下行TTI的信令指示。
可选的,所述接收模块用于接收UE在所述目标子帧的下一个子帧中采用s PUCCH格式传输的所述反馈信息;或者
所述接收模块用于接收UE在所述目标子帧的下一个子帧中采用s PUSCH格式传输的所述反馈信息。
可选的,所述目标子帧在时域上为包括z个OFDM符号的时间段,所述目标子帧的下一个子帧在时域上为所述目标子帧的时间段的下一个所述时间段,所述z为大于或者等于1的正整数。
本公开实施例还提供一种反馈信息传输系统,包括:
UE,用于生成目标子帧的反馈信息;
所述UE在所述目标子帧的下一个子帧中向基站传输所述反馈信息;
所述基站,用于接收所述UE在目标子帧的下一个子帧中传输的所述反馈信息。
本公开的上述技术方案至少具有如下有益效果:
UE生成目标子帧的反馈信息;所述UE在所述目标子帧的下一个子帧中向基站传输所述反馈信息。由于目标子帧的反馈信息在目标子帧的下一个子 帧中传输,从而可以实现及时向基站反馈子帧中各TTI的反馈信息,相比相关技术中间隔3个子帧传输反馈信息,本公开实施例中反馈信息的传输可以适合于短TTI或者长度可变的TTI。
附图说明
图1是本公开实施例提供的网络结构示意图;
图2是本公开实施例提供的一种反馈信息传输方法的流程示意图;
图3是本公开实施例提供的另一种反馈信息传输方法的流程示意图;
图4是本公开实施例提供的一种反馈信息传输的示意图;
图5是本公开实施例提供的另一种反馈信息传输的示意图;
图6是本公开实施例提供的另一种反馈信息传输的示意图;
图7是本公开实施例提供的一种UE的结构示意图;
图8是本公开实施例提供的一种基站的结构示意图;
图9是本公开实施例提供的另一种UE的结构示意图;
图10是本公开实施例提供的另一种基站的结构示意图;
图11是本公开实施例提供的一种反馈信息传输系统的结构示意图。
具体实施方式
为使本公开要解决的技术问题、技术方案和优点更加清楚,下面将结合附图及具体实施例进行详细描述。
参见图1,图1是本公开实施例提供的网络结构示意图,如图1所示,包括基站11和UE12。其中,基站11可以是演进型基站(eNB,evolved Node B)或者其他基站,需要说明的是,在本公开实施例中并不限定基站11的具体类型。基站11可以与UE12建立通信,其中,附图中的网络可以表示基站11可以与UE12无线建立通信,UE12可以是手机、平板电脑(Tablet Personal Computer)、膝上型电脑(Laptop Computer)、个人数字助理(personal digital assistant,简称PDA)、移动上网装置(Mobile Internet Device,MID)或可穿戴式设备(Wearable Device)等终端设备,需要说明的是,在本公开实施例中并不限定UE12的具体类型。
基于图1所示的网络结构,本公开实施例提供一种反馈信息传输方法,如图2所示,包括以下步骤:
201、UE生成目标子帧的反馈信息;
202、UE在所述目标子帧的下一个子帧中向基站传输所述反馈信息。
本实施例中,上述目标子帧可以是移动通信系统中的任一子帧,该子帧中可以包括短TTI,或者可以包括长度可变的TTI,或者还可以包括长度固定的TTI。另外,上述目标子帧中还可以包括一个或者多个TTI,且包括多个TTI时这多个TTI可以是长度不同的TTI,或者可以是长度相同TTI等,对此本实施例不作限定。
另外,上述目标子帧的下一个子帧可以理解为目标子帧的后一个子帧,例如:上述目标子帧为子帧n-1,那么,上述下一个子帧就为子帧n。由于目标子帧的反馈信息在下一个子帧中传输,这样可以实现及时将目标子帧的反馈信息反馈给基站。例如:目标子帧中包括多个TTI时,这样就可以及时将这多个TTI的反馈信息传输给基站,从而上述反馈信息传输方法可以适合短TTI或者长度可变的TTI。
可选的,上述反馈信息可以包括:
HARQ的ACK反馈信息或者HARQ的NACK反馈信息。
这样可以实现在下一个子帧中传输目标子帧的HARQ的ACK反馈信息或者HARQ的NACK反馈信息。当然,本实施例中,上述反馈信息并不限定是HARQ的ACK反馈信息或者HARQ的NACK反馈信息,还可以是其他需要向基站反馈的ACK反馈信息或者NACK反馈信息,对此本实施例不作限定。
可选的,上述UE生成目标子帧的反馈信息,可以包括:
所述UE确定所述目标子帧的反馈信息的码本大小,根据所述码本大小生成所述目标子帧的反馈信息。
该实施方式中,上述码本大小可以是根据一些信息临时确定的,也可以是UE预先设定的。另外,上述根据所述码本大小生成所述目标子帧的反馈信息可以理解为,生成码本为上述码本大小的所述目标子帧的反馈信息。其中,目标子帧的反馈信息可以是由一些由0和1组成的比特。另外,在一些 场景中UE生成目标子帧的反馈信息还可以通过其他方式生成,例如:UE生成固定格式或者固定大小的目标子帧的反馈信息等,对此本实施例不作限定。
可选的,该实施方式中,上述UE确定所述目标子帧的反馈信息的码本大小,可以包括:
所述UE根据特定信息确定所述目标子帧的反馈信息的码本大小,其中,所述特定信息包括如下一种或者多种:
所述目标子帧的可传输的最大下行TTI个数、配置载波个数、所述基站指示的DAI信息、高层信令和传输块个数。
该实施方式中,可以实现根据上述一种或者多种信息确定所述目标子帧的反馈信息的码本大小,例如:根据其中任一种信息确定所述目标子帧的反馈信息的码本大小时,可以是按照预先设置的该信息与码本大小的映射关系确定目标子帧的反馈信息的码本大小;或者根据其中的多种信息确定目标子帧的反馈信息的码本大小,例如:根据可传输的最大下行传输时间间隔TTI个数和传输块个数确定码本大小,或者可以根据可传输的最大下行传输时间间隔TTI个数、配置载波个数和传输块个数确定码本大小,或者可以根据所述基站指示的DAI信息和高层信令确定码本大小,或者可以根据所述基站指示的下行配置索引值DAI信息和传输块个数确定码本大小等等。上述码本大小可以是将上述多种信息中的至少两种信息进行预设运算,以确定目标子的反馈信息的码本大小,例如:目标子帧的反馈信息的码本大小为最大下行TTI个数与传输块个数的乘积,或者目标子帧的反馈信息的码本大小为最大下行TTI个数与传输块个数的乘积等等,对此本实施例不作限定。
可选的,上述实施方式中,若所述目标子帧为下行子帧,则所述目标子帧的可传输的最大TTI个数为所述目标子帧可包含的最大TTI个数。
该实施方式中,可以实现将目标子帧可包含的最大TTI个数作为上述目标子帧的可传输的最大TTI个数。其中,上述目标子帧可包含的最大TTI个数,可以理解为目标子帧最多包含的TTI个数。
可选的,上述实施方式中,若所述目标子帧为特殊子帧,则所述目标子帧的可传输的最大TTI个数为所述目标子帧的下行时隙中可包含的最大TTI个数,所述特殊子帧至少包括下行时隙和保护间隔。
该实施方式中,上述目标子帧为特殊子帧,即目标子帧至少包括下行时隙和保护间隔(GP,Guard Period),其中,上述下行间隙可以是下行传输时隙(DwPTS,Downlink Pilot Time Slot)。当然,在一些场景中上述目标子帧还可以包括上行传输时隙(UpPTS,Uplink Pilot Time Slot)。该实施方式中,可以将目标子帧的下行时隙中可包含的最大TTI个数作为目标子帧的可传输的最大TTI个数。
可选的,上述实施方式中,若所述目标子帧中存在不同TTI长度的下行数据,则所述目标子帧的可传输的最大TTI个数为所述目标子帧中最大可传输的基本TTI个数,所述基本TTI的长度为K个OFDM符号,所述K为大于或者等于1的整数。
该实施方式中,上述基本TTI可以是预先定义好的,例如:上述基本TTI为长度为2个OFDM符号的TTI。该实施方式中,可以将所述目标子帧中最大可传输的基本TTI个数作为目标子帧的可传输的最大TTI个数。例如:目标子帧包括10个OFDM符号,而目标子帧中包括4个分别占用3、2、2和3个OFDM符号的TTI,如果基本TTI长度为2个OFDM符号,这样目标子帧的最大可传输的基本TTI个数为5,即目标子帧的可传输的最大TTI个数为5。
可选的,上述实施方式中,若所述基站为所述UE配置了多个下行载波,则所述目标子帧的可传输的最大TTI个数在所述多个下行载波上分别进行确定,或者所述目标子帧的可传输的最大TTI个数为所述多个下行载波中在所述目标子帧中传输的最大下行TTI个数。
该实施方式中,可以实现当UE配置了多个下行载波时,那么,多个下行载波的目标子帧的可传输的最大TTI个数分别确定,例如:每个下行载波的目标子帧的可传输的最大TTI个数可以为各自的可传输的最大TTI个数。例如:上述多个下行载波包括载波1和载波2,而载波1的目标子帧包括5个TTI,而载波2的目标子帧包括6个TTI,则载波1的目标子帧的可传输的最大TTI个数是5,载波2的目标子帧的可传输的最大TTI个数是6。
另外,该实施方式中,还可以将多个下行载波中在所述目标子帧中传输的最大下行TTI作为目标子帧的可传输的最大TTI个数,例如:上述多个下行载波包括载波1和载波2,而载波1的目标子帧包括5个TTI,而载波2的 目标子帧包括6个TTI,则目标子帧的可传输的最大TTI个数是6。
可选的,上述实施方式,上述基站指示的DAI信息可以包括如下一种或者多种:
时域的C-DAI、T-DAI以及频域和时域的C-DAI。
该实施方式中,可以实现根据时域的C-DAI、T-DAI以及频域和时域的C-DAI中的一项或者多项确定目标子帧的反馈信息的码本大小,例如:在双码字传输条件下,可以将时域的C-DAI、T-DAI或者频域和时域的C-DAI的2倍作为目标子帧的码本大小,或者还可以将时域的C-DAI、T-DAI或者频域和时域的C-DAI与传输块个数的乘积作为目标子帧的码本大小。例如:假设双码字的传输条件下,基站在载波1的子帧n-1中调度了下行TTI 3中的下行传输,对应的频域和时域的计数C-DAI=1,T-DAI=1,在载波2的子帧n-1调度了下行TTI5~7中的下行传输,对应的频域和时域的计数C-DAI分别为2、3和4,对应的T-DAI也分别为2、3和4,则子帧n-1的码本大小为4*2。如果UE未收到载波1上的TTI 3,但是正确接收了载波2所有的TTI,则终端根据DAI信息生成反馈比特00111111,在子帧n的sPUCCH中发送反馈信息。
可选的,上述实施方式中,所述频域和时域的C-DAI可以是所述基站调度下行数据的TTI索引,且所述频域和时域的C-DAI是按照先频域后时域的顺序对调度的TTI进行计数的。
所述T-DAI可以是所述UE需要在上行子帧中反馈的所有下行子帧的总数,且所述T-DAI在时域上的每个子帧中更新。
所述时域的C-DAI可以是所述基站仅对时域上调度的下行数据的TTI索引,且所述时域的C-DAI是按照时间顺序对时域上调度的TTI进行计数的。
可选的,上述实施方式中,上述所述高层信令和/或传输块个数据用于确定所述目标子帧中每个TTI的反馈比特数,其中:
所述高层信令为用于指示是否使用码字合并,若合并,则所述目标子帧中每个TTI的反馈比特数为1,若不合并,则所述目标子帧中每个TTI的反馈比特数由载波传输模式确定;或者
所述高层信令为用于指示所述目标子帧中每个TTI的反馈比特数;或者
所述传输块个数为所述目标子帧中每个TTI的反馈比特数。
该实施方式中,可以实现根据高层信令和/或传输块个数据用于确定所述目标子帧中每个TTI的反馈比特数,例如:确定每个TTI的反馈比特数为1比特,那么目标子帧的码本大小就可以是目标子帧的可传输的最大TTI个数,确定每个TTI的反馈比特数为2比特,那么目标子帧的码本大小就可以是目标子帧的可传输的最大TTI个数的2倍。另外,所述目标子帧中每个TTI的反馈比特数由载波传输模式确定可以理解为,当载波传输模式为双码字传输模式时,目标子帧中每个TTI的反馈比特数为2,当载波传输模式为单码字传输模式时,目标子帧中每个TTI的反馈比特数为1。
另外,上述高层信令为用于指示所述目标子帧中每个TTI的反馈比特数,可以实现不管配置了什么传输模式,基站都可以通过高层信令指示在目标子帧的反馈信息中每个载波每个TTI中反馈1比特还是2比特的信息。
可选的,上述UE根据所述码本大小生成所述目标子帧的反馈信息,可以包括:
所述UE将至少一个载波中的目标子帧的反馈比特进行级联得到所述码本大小的码本,以生成所述目标子帧的反馈信息,其中,每个载波中的目标子帧的反馈比特按照TTI编号进行排序。
该实施方式中,可以实现将一个或者多个载波中的目标子帧的反馈比特按照载波编号进行级联得到所述码本大小的码本,以生成所述目标子帧的反馈信息。另外,每个载波中的目标子帧的反馈比特按照TTI编号进行排序,这样就可以实现在向基站反馈每个载波中的目标子帧包括多个TTI的反馈比特。例如:基站在载波1子帧n-1中调度了下行TTI 0~5中的下行传输,在载波2的子帧n-1调度了下行TTI0~7中的下行传输,如果UE正确接收了所有的TTI,则载波1中的子帧n-1的反馈比特为1111110000,载波2中的子帧n-1的反馈比特位为111111110,UE可以在载波1子帧n的sPUCCH中发送这两级比特级联后的反馈信息。
可选的,上述实施方式中,上述TTI编号可以为按照TTI实际传输顺序进行的编号;或者
所述TTI编号为按照基本TTI顺序进行的编号,所述基本TTI的长度为K个OFDM符号,所述K为大于或者等于1的整数。
该实施方式中,可以实现TTI编号为按照实际传输的TTI进行编号,例如:基站在载波1子帧n-1中调度了4个下行TTI,分别占用3、2、2和3个OFDM符号,则这4个下行TTI为编号分别为1、2、3和4。
另外,该实施方式中,还可以TTI编号为按照基本TTI顺序进行的编号。
可选的,该实施方式中,上述所述TTI编号为按照基本TTI顺序进行的编号时,所述UE接收到的TTI的编号可以为该TTI的第一个OFDM符号所属的基本TTI的编号。
例如:基站在载波1子帧n-1中调度了3个下行TTI,分别占用3、3和4个OFDM符号,基本TTI长度为2个OFDM符号,那么,这3个TTI的编号分别为1、2和4。
可选的,上述UE根据所述码本大小生成所述目标子帧的反馈信息,可以包括:
UE将所述目标子帧的反馈比特按照DAI信息进行排序,得到所述码本大小的码本,以生成所述目标子帧的反馈信息。
该实施方式中,可以实现根据DAI信息对反馈比特进行排序,以生成目标子帧的反馈信息。例如:假设双码字的传输条件下,基站在载波1的子帧n-1中调度了下行TTI5~7中的下行传输,对应的频域和时域的计数C-DAI分别为1、2和3,对应的T-DAI也分别为1、2和3,则子帧n-1的码本大小为3*2。如果UE未收到载波1上的TTI 6,但是正确接收了TTI5和TTI7,则UE根据DAI信息生成反馈比特110011,在子帧n的sPUCCH中发送反馈信息。
可选的,上述UE根据所述码本大小生成所述目标子帧的反馈信息,可以包括:
所述UE将至少一个载波中的目标子帧的反馈比特进行级联得到所述码本大小的码本,以生成所述目标子帧的反馈信息,其中,每个载波的反馈比特按照DAI信息进行排序。
该实施方式中,可以实现将一个或者多个载波中的目标子帧的反馈比特按照载波编号进行级联得到所述码本大小的码本,以生成所述目标子帧的反馈信息。另外,每个载波的反馈比特按照DAI信息进行排序,这样就可以实 现在向基站反馈每个载波中的目标子帧包括多个TTI的反馈比特。例如:假设双码字的传输条件下,基站在载波1的子帧n-1中调度了下行TTI 3中的下行传输,对应的频域和时域的计数C-DAI=1,T-DAI=1,在载波2的子帧n-1调度了下行TTI5~7中的下行传输,对应的频域和时域的计数C-DAI分别为2、3和4,对应的T-DAI也分别为2、3和4,则子帧n-1的码本大小为4*2。如果UE未收到载波1上的TTI 3,但是正确接收了载波2所有的TTI,则终端根据DAI信息生成反馈比特00111111,在子帧n的sPUCCH中发送反馈信息。
可选的,上述UE在所述目标子帧的下一个子帧中向基站传输所述反馈信息,可以包括:
所述UE在所述目标子帧的下一个子帧中最后x个OFDM符号中向基站传输所述反馈信息,所述x为大于或者等于1的整数。
该实施方式中,可以实现在下一个子帧中的最后x个OFDM符号中传输目标子帧的反馈信息。可以是在最后1个或者2个或者3个OFDM符号中传输目标子帧的反馈信息。另外,该实施方式中,还可以采用sPUCCH格式或者s PUSCH格式传输反馈信息。
可选的,上述UE在所述目标子帧的下一个子帧中向基站传输所述反馈信息,可以包括:
UE在所述目标子帧的下一个子帧中的特定资源中向基站传输所述反馈信息,其中,所述特定资源通过所述目标子帧中下行传输的TTI长度和位置确定,或者所述特定资源通过高层信令和/或调度下行TTI的信令指示。
该实施方式中,可以实现在上述特定资源上传输反馈信息。其中,该特定资源可以是通过所述目标子帧中下行传输的TTI长度和位置确定,即可以实现传输资源通过目标子帧中下行传输的TTI长度和位置隐式获得。具体可以是根据目标子帧中下行传输的TTI长度和位置与传输资源的对应关系,确定上述特定传输资源。另外,该实施方式中,上述特定资源还可以通过高层信令和/或调度下行TTI的信令指示,例如:基站可以向UE下发指示传输目标子帧的反馈信息的传输资源的高层信令,或者基站可以向UE下发调度下行TTI的信令,UE接收该信令就可以在该信令指示的资源上传输目标子帧的反馈信息。
可选的,上述UE在所述目标子帧的下一个子帧中向基站传输所述反馈信息,可以包括:
所述UE在所述目标子帧的下一个子帧中采用sPUCCH格式向基站传输所述反馈信息;或者
所述UE在所述目标子帧的下一个子帧中采用sPUSCH格式向基站传输所述反馈信息。
该实施方式中,可以实现采用sPUCCH或者sPUSCH格式向基站传输所述反馈信息。例如:可以是在子帧n中,UE可通过sPUCCH传输子帧n-1的反馈信息;或者,如果UE不支持sPUCCH,还可以在子帧n中,通过sPUSCH传输子帧n-1的反馈信息。
可选的,上述目标子帧在时域上为包括z个OFDM符号的时间段,所述目标子帧的下一个子帧在时域上为所述目标子帧的时间段的下一个所述时间段,所述z为大于或者等于1的正整数。
该实施方式中,可以实现目标子帧和目标子帧的下一个子帧是时间上不为子帧的一个时间段,例如:目标子帧是时间段n-1,目标子帧的下一个子帧是时间段n,即可以实现在时间段n中反馈时间段n-1的反馈信息。另外,上述包括z个OFDM符号的时间段可以理解为,时间段只包括z个OFDM符号,即上述目标子帧和上述目标子帧的下一个子帧可以是只包括z个OFDM符号,例如:都只包括4个OFDM符号或者6个OFDM符号或者8个OFDM符号等,对此不作限定。
本实施例中,UE生成目标子帧的反馈信息;所述UE在所述目标子帧的下一个子帧中向基站传输所述反馈信息。由于目标子帧的反馈信息在目标子帧的下一个子帧中传输,从而可以实现及时向基站反馈子帧中各TTI的反馈信息,相比相关技术中间隔3个子帧传输反馈信息,本实施例中反馈信息的传输可以适合于短TTI或者长度可变的TTI。即在下行传输使用短TTI长度或者TTI长度不固定时,支持下行传输的反馈信息的正常反馈。
基于图1所示的网络结构,本公开实施例提供另一种反馈信息传输方法,如图3所示,包括以下步骤:
301、基站接收UE在目标子帧的下一个子帧中传输的反馈信息,所述反 馈信息为所述UE生成的所述目标子帧的反馈信息。
可选的,所述反馈信息包括:
HARQ的ACK反馈信息或者HARQ的NACK反馈信息。
可选的,所述目标子帧的反馈信息,包括:
所述UE根据确定的所述目标子帧的反馈信息的码本大小生成的所述目标子帧的反馈信息。
可选的,所述码本大小,包括:
所述UE根据特定信息确定的所述目标子帧的反馈信息的码本大小,其中,所述特定信息包括如下一种或者多种:
所述目标子帧的可传输的最大下行TTI个数、配置载波个数、所述基站指示的DAI信息、高层信令和传输块个数。
可选的,若所述目标子帧为下行子帧,则所述目标子帧的可传输的最大TTI个数为所述目标子帧可包含的最大TTI个数;或者
若所述目标子帧为特殊子帧,则所述目标子帧的可传输的最大TTI个数为所述目标子帧的下行时隙中可包含的最大TTI个数,所述特殊子帧至少包括下行时隙和保护间隔;或者
若所述目标子帧中存在不同TTI长度的下行数据,则所述目标子帧的可传输的最大TTI个数为所述目标子帧中最大可传输的基本TTI个数,所述基本TTI的长度为K个OFDM符号,所述K为大于或者等于1的整数;或者
若所述基站为所述UE配置了多个下行载波,则所述目标子帧的可传输的最大TTI个数在所述多个下行载波上分别进行确定,或者所述目标子帧的可传输的最大TTI个数为所述多个下行载波中在所述目标子帧中传输的最大下行TTI个数。
可选的,所述基站指示的DAI信息包括如下一种或者多种:
时域的C-DAI、T-DAI以及频域和时域的C-DAI。
可选的,所述频域和时域的C-DAI是所述基站调度下行数据的TTI索引,且所述频域和时域的C-DAI是按照先频域后时域的顺序对调度的TTI进行计数的;
所述T-DAI是所述UE需要在上行子帧中反馈的所有下行子帧的总数, 且所述T-DAI在时域上的每个子帧中更新;
所述时域的C-DAI是所述基站仅对时域上调度的下行数据的TTI索引,且所述时域的C-DAI是按照时间顺序对时域上调度的TTI进行计数的。
可选的,所述高层信令和/或传输块个数据用于确定所述目标子帧中每个TTI的反馈比特数,其中:
所述高层信令为用于指示是否使用码字合并,若合并,则所述目标子帧中每个TTI的反馈比特数为1,若不合并,则所述目标子帧中每个TTI的反馈比特数由载波传输模式确定;或者
所述高层信令为用于指示所述目标子帧中每个TTI的反馈比特数;或者
所述传输块个数为所述目标子帧中每个TTI的反馈比特数。
可选的,所述目标子帧的反馈信息,包括:
所述UE将至少一个载波中的目标子帧的反馈比特进行级联得到所述码本大小的码本,以生成的所述目标子帧的反馈信息,其中,每个载波中的目标子帧的反馈比特按照TTI编号进行排序;或者
所述UE将所述目标子帧的反馈比特按照DAI信息进行排序,得到所述码本大小的码本,以生成的所述目标子帧的反馈信息;或者
所述UE将至少一个载波中的目标子帧的反馈比特进行级联得到所述码本大小的码本,以生成的所述目标子帧的反馈信息,其中,每个载波的反馈比特按照DAI信息进行排序。
可选的,所述TTI编号为按照TTI实际传输顺序进行的编号;或者
所述TTI编号为按照基本TTI顺序进行的编号,所述基本TTI的长度为K个OFDM符号,所述K为大于或者等于1的整数。
可选的,所述TTI编号为按照基本TTI顺序进行的编号时,所述UE接收到的TTI的编号为该TTI的第一个OFDM符号所属的基本TTI的编号。
可选的,所述基站接收UE在目标子帧的下一个子帧中传输的反馈信息,包括:
所述基站接收UE在所述目标子帧的下一个子帧中最后x个OFDM符号中传输的所述反馈信息,所述x为大于或者等于1的整数;或者
所述基站接收UE在所述目标子帧的下一个子帧中的特定资源中传输的 所述反馈信息,其中,所述特定资源通过所述目标子帧中下行传输的TTI长度和位置确定,或者所述特定资源通过高层信令和/或调度下行TTI的信令指示。
可选的,所述基站接收UE在目标子帧的下一个子帧中传输的反馈信息,包括:
所述基站接收UE在所述目标子帧的下一个子帧中采用s PUCCH格式传输的所述反馈信息;或者
所述基站接收UE在所述目标子帧的下一个子帧中采用s PUSCH格式传输的所述反馈信息。
可选的,所述目标子帧在时域上为包括z个OFDM符号的时间段,所述目标子帧的下一个子帧在时域上为所述目标子帧的时间段的下一个所述时间段,所述z为大于或者等于1的正整数。
需要说明的是,本实施例作为与图2所示的实施例中对应的基站侧的实施方式,其具体的实施方式可以参见图2所示的实施例的相关说明,以为避免重复说明,本实施例不再赘述。本实施例中,同样可以实现反馈信息的传输适合于短TTI或者长度可变的TTI。
下面以多个举例对上面实施例中介绍的实施方式进行举例说明:
例1:
如图4所示,频分双工(FDD,Frequency Division Duplexing)载波,基站在子帧n-1中传输TTI长度为2个OFDM符号的下行TTI,这些下行TTI对应的反馈信息都在子帧n中进行反馈。
UE可以根据TTI编号生成反馈比特,假设单载波单码字的传输条件下,UE正确接收了所有的TTI,则反馈的码本为7个比特1。在子帧n中包含多个反馈信息的传输资源,基站可以通过RRC信令预先配置给终端多个资源,并在调度下行传输时通过下行调度信令通知当前传输所对应的传输资源。在该实例中,所述反馈信息的传输资源占用2个OFDM符号长度。
例2:如图5所示,时分双工(TDD,Time Division Duplexing)载波或者5G新载波,每个子帧都可以是特殊子帧。
假设基站为UE配置了载波1和载波2,载波1上的子帧中下行TTI占用 10个OFDM符号,GP占用1个OFDM符号,上行TTI占用3个OFDM符号,载波2上的子帧中下行TTI占用9个OFDM符号,GP占用3个OFDM符号,上行TTI占用2个OFDM符号。基站在子帧n-1中同时在载波1和载波2上调度了下行传输,传输TTI长度为1个OFDM符号的下行TTI,这些下行TTI对应的反馈信息都在子帧n中进行反馈。
方式一:UE可以根据每个载波上的最大下行TTI个数分别生成反馈比特,假设单码字的传输条件下,基站在载波1子帧n-1中调度了下行TTI 0~5中的下行传输,在载波2的子帧n-1调度了下行TTI0~7中的下行传输,如果UE正确接收了所有的TTI,则载波1上的反馈比特为1111110000,载波2上的反馈比特位111111110,终端在载波1子帧n的sPUCCH中发送级联后的反馈信息。
方式二:UE可以根据基站指示的DAI生成反馈比特,假设双码字的传输条件下,基站在载波1子帧n-1中调度了下行TTI 3中的下行传输,对应的频域和时域的计数C-DAI=1,T-DAI=1,在载波2的子帧n-1调度了下行TTI5~7中的下行传输,对应的频域和时域的计数C-DAI分别为2、3和4,对应的T-DAI也分别为2、3和4,如果UE未收到载波1上的TTI 3,但是正确接收了载波2所有的TTI,则UE可以根据DAI生成反馈比特00111111,在载波1子帧n的sPUCCH中发送反馈信息。
例3:如图6所示,TDD载波或者5G新载波,每个子帧都可以是特殊子帧。
假设基站为UE配置了载波1和载波2,载波1上的子帧中的下行TTI占用10个OFDM符号,GP占用1个OFDM符号,上行TTI占用3个OFDM符号,载波2上的子帧中下行TTI占用10个OFDM符号,GP占用2个OFDM符号,上行TTI占用2个OFDM符号。基站在子帧n-1中同时在载波1和载波2上调度了下行传输,传输TTI长度为可变长度的下行TTI,这些下行TTI对应的反馈信息都在子帧n中进行反馈。
UE可以根据下行基本TTI长度(2个OFDM符号)确定反馈比特数,假设单码字的传输条件下,基站在载波1子帧n-1中调度了4个下行TTI,分别占用3、2、2和3个OFDM符号,在载波2子帧n-1中调度了3个下行TTI, 分别占用3、3和4个OFDM符号,如果UE正确接收了所有的TTI,则UE可以根据所收到的TTI的第一个OFDM符号所属于的基本TTI确定反馈比特位置,终端在载波1上的反馈比特为11110,载波2上的反馈比特位10110,终端在载波1和载波2子帧n的sPUCCH中分别发送各载波上的反馈信息。
参见图7,图中示出一种UE结构,UE70包括如下模块:
生成模块71,用于生成目标子帧的反馈信息。
传输模块72,用于在所述目标子帧的下一个子帧中向基站传输所述反馈信息。
可选的,所述反馈信息包括:
HARQ的ACK反馈信息或者HARQ的NACK反馈信息。
可选的,生成模块71可以用于确定所述目标子帧的反馈信息的码本大小,根据所述码本大小生成所述目标子帧的反馈信息。
可选的,生成模块71可以用于根据特定信息确定所述目标子帧的反馈信息的码本大小,其中,所述特定信息包括如下一种或者多种:
所述目标子帧的可传输的最大下行TTI个数、配置载波个数、所述基站指示的DAI信息、高层信令和传输块个数。
可选的,若所述目标子帧为下行子帧,则所述目标子帧的可传输的最大TTI个数为所述目标子帧可包含的最大TTI个数;或者
若所述目标子帧为特殊子帧,则所述目标子帧的可传输的最大TTI个数为所述目标子帧的下行时隙中可包含的最大TTI个数,所述特殊子帧至少包括下行时隙和保护间隔;或者
若所述目标子帧中存在不同TTI长度的下行数据,则所述目标子帧的可传输的最大TTI个数为所述目标子帧中最大可传输的基本TTI个数,所述基本TTI的长度为K个OFDM符号,所述K为大于或者等于1的整数;或者
若所述基站为所述UE配置了多个下行载波,则所述目标子帧的可传输的最大TTI个数在所述多个下行载波上分别进行确定,或者所述目标子帧的可传输的最大TTI个数为所述多个下行载波中在所述目标子帧中传输的最大下行TTI个数。
可选的,所述基站指示的DAI信息包括如下一种或者多种:
时域的C-DAI、T-DAI以及频域和时域的C-DAI。
可选的,所述频域和时域的C-DAI是所述基站调度下行数据的TTI索引,且所述频域和时域的C-DAI是按照先频域后时域的顺序对调度的TTI进行计数的;
所述T-DAI是所述UE需要在上行子帧中反馈的所有下行子帧的总数,且所述T-DAI在时域上的每个子帧中更新;
所述时域的C-DAI是所述基站仅对时域上调度的下行数据的TTI索引,且所述时域的C-DAI是按照时间顺序对时域上调度的TTI进行计数的。
可选的,所述高层信令和/或传输块个数据用于确定所述目标子帧中每个TTI的反馈比特数,其中:
所述高层信令为用于指示是否使用码字合并,若合并,则所述目标子帧中每个TTI的反馈比特数为1,若不合并,则所述目标子帧中每个TTI的反馈比特数由载波传输模式确定;或者
所述高层信令为用于指示所述目标子帧中每个TTI的反馈比特数;或者
所述传输块个数为所述目标子帧中每个TTI的反馈比特数。
可选的,生成模块71可以用于将至少一个载波中的目标子帧的反馈比特进行级联得到所述码本大小的码本,以生成所述目标子帧的反馈信息,其中,每个载波中的目标子帧的反馈比特按照TTI编号进行排序;或者
生成模块71可以用于将所述目标子帧的反馈比特按照DAI信息进行排序,得到所述码本大小的码本,以生成所述目标子帧的反馈信息;或者
生成模块71可以用于将至少一个载波中的目标子帧的反馈比特进行级联得到所述码本大小的码本,以生成所述目标子帧的反馈信息,其中,每个载波的反馈比特按照DAI信息进行排序。
可选的,所述TTI编号为按照TTI实际传输顺序进行的编号;或者
所述TTI编号为按照基本TTI顺序进行的编号,所述基本TTI的长度为K个OFDM符号,所述K为大于或者等于1的整数。
可选的,所述TTI编号为按照基本TTI顺序进行的编号时,所述UE接收到的TTI的编号为该TTI的第一个OFDM符号所属的基本TTI的编号。
可选的,传输模块72可以用于在所述目标子帧的下一个子帧中最后x个 OFDM符号中向基站传输所述反馈信息,所述x为大于或者等于1的整数;或者
传输模块72可以用于在所述目标子帧的下一个子帧中的特定资源中向基站传输所述反馈信息,其中,所述特定资源通过所述目标子帧中下行传输的TTI长度和位置确定,或者所述特定资源通过高层信令和/或调度下行TTI的信令指示。
可选的,传输模块72可以用于在所述目标子帧的下一个子帧中采用s PUCCH格式向基站传输所述反馈信息;或者
传输模块72可以用于在所述目标子帧的下一个子帧中采用s PUSCH格式向基站传输所述反馈信息。
可选的,所述目标子帧在时域上为包括z个OFDM符号的时间段,所述目标子帧的下一个子帧在时域上为所述目标子帧的时间段的下一个所述时间段,所述z为大于或者等于1的正整数。
需要说明的是,本实施例中上述UE70可以图1-图6所示的实施例中的UE,图1-图6所示实施例中UE的任意实施方式都可以被本实施例中的上述UE70所实现,以及达到相同的有益效果,此处不再赘述。
参见图8,图中示出一种基站结构,基站80包括如下模块:
接收模块81,用于接收UE在目标子帧的下一个子帧中传输的反馈信息,所述反馈信息为所述UE生成的所述目标子帧的反馈信息。
可选的,所述反馈信息包括:
HARQ的ACK反馈信息或者HARQ的NACK反馈信息。
可选的,所述目标子帧的反馈信息,包括:
所述UE根据确定的所述目标子帧的反馈信息的码本大小生成的所述目标子帧的反馈信息。
可选的,所述码本大小,包括:
所述UE根据特定信息确定的所述目标子帧的反馈信息的码本大小,其中,所述特定信息包括如下一种或者多种:
所述目标子帧的可传输的最大下行TTI个数、配置载波个数、所述基站指示的DAI信息、高层信令和传输块个数。
可选的,若所述目标子帧为下行子帧,则所述目标子帧的可传输的最大TTI个数为所述目标子帧可包含的最大TTI个数;或者
若所述目标子帧为特殊子帧,则所述目标子帧的可传输的最大TTI个数为所述目标子帧的下行时隙中可包含的最大TTI个数,所述特殊子帧至少包括下行时隙和保护间隔;或者
若所述目标子帧中存在不同TTI长度的下行数据,则所述目标子帧的可传输的最大TTI个数为所述目标子帧中最大可传输的基本TTI个数,所述基本TTI的长度为K个OFDM符号,所述K为大于或者等于1的整数;或者
若所述基站为所述UE配置了多个下行载波,则所述目标子帧的可传输的最大TTI个数在所述多个下行载波上分别进行确定,或者所述目标子帧的可传输的最大TTI个数为所述多个下行载波中在所述目标子帧中传输的最大下行TTI个数。
可选的,所述基站指示的DAI信息包括如下一种或者多种:
时域的C-DAI、T-DAI以及频域和时域的C-DAI。
可选的,所述频域和时域的C-DAI是所述基站调度下行数据的TTI索引,且所述频域和时域的C-DAI是按照先频域后时域的顺序对调度的TTI进行计数的;
所述T-DAI是所述UE需要在上行子帧中反馈的所有下行子帧的总数,且所述T-DAI在时域上的每个子帧中更新;
所述时域的C-DAI是所述基站仅对时域上调度的下行数据的TTI索引,且所述时域的C-DAI是按照时间顺序对时域上调度的TTI进行计数的。
可选的,所述高层信令和/或传输块个数据用于确定所述目标子帧中每个TTI的反馈比特数,其中:
所述高层信令为用于指示是否使用码字合并,若合并,则所述目标子帧中每个TTI的反馈比特数为1,若不合并,则所述目标子帧中每个TTI的反馈比特数由载波传输模式确定;或者
所述高层信令为用于指示所述目标子帧中每个TTI的反馈比特数;或者
所述传输块个数为所述目标子帧中每个TTI的反馈比特数。
可选的,所述目标子帧的反馈信息,包括:
所述UE将至少一个载波中的目标子帧的反馈比特进行级联得到所述码本大小的码本,以生成的所述目标子帧的反馈信息,其中,每个载波中的目标子帧的反馈比特按照TTI编号进行排序;或者
所述UE将所述目标子帧的反馈比特按照DAI信息进行排序,得到所述码本大小的码本,以生成的所述目标子帧的反馈信息;或者
所述UE将至少一个载波中的目标子帧的反馈比特进行级联得到所述码本大小的码本,以生成的所述目标子帧的反馈信息,其中,每个载波的反馈比特按照DAI信息进行排序。
可选的,所述TTI编号为按照TTI实际传输顺序进行的编号;或者
所述TTI编号为按照基本TTI顺序进行的编号,所述基本TTI的长度为K个OFDM符号,所述K为大于或者等于1的整数。
可选的,所述TTI编号为按照基本TTI顺序进行的编号时,所述UE接收到的TTI的编号为该TTI的第一个OFDM符号所属的基本TTI的编号。
可选的,接收模块81可以用于所述基站接收UE在所述目标子帧的下一个子帧中最后x个OFDM符号中传输的所述反馈信息,所述x为大于或者等于1的整数;或者
接收模块81可以用于接收UE在所述目标子帧的下一个子帧中的特定资源中传输的所述反馈信息,其中,所述特定资源通过所述目标子帧中下行传输的TTI长度和位置确定,或者所述特定资源通过高层信令和/或调度下行TTI的信令指示。
可选的,接收模块81可以用于接收UE在所述目标子帧的下一个子帧中采用s PUCCH格式传输的所述反馈信息;或者
接收模块81可以用于接收UE在所述目标子帧的下一个子帧中采用s PUSCH格式传输的所述反馈信息。
可选的,所述目标子帧在时域上为包括z个OFDM符号的时间段,所述目标子帧的下一个子帧在时域上为所述目标子帧的时间段的下一个所述时间段,所述z为大于或者等于1的正整数。
需要说明的是,本实施例中上述基站80可以图1-图6所示的实施例中的基站,图1-图6所示实施例中基站的任意实施方式都可以被本实施例中的上 述基站80所实现,以及达到相同的有益效果,此处不再赘述。
参见图9,图中示出一种UE的结构,该基站包括:处理器900、收发机910、存储器920、用户接口930和总线接口,其中:
处理器900,用于读取存储器920中的程序,执行下列过程:
生成目标子帧的反馈信息;
通过收发机910在所述目标子帧的下一个子帧中向基站传输所述反馈信息。
其中,收发机910,用于在处理器900的控制下接收和发送数据。
在图9中,总线架构可以包括任意数量的互联的总线和桥,具体由处理器900代表的一个或多个处理器和存储器920代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起,这些都是本领域所公知的,因此,本文不再对其进行进一步描述。总线接口提供接口。收发机910可以是多个元件,即包括发送机和接收机,提供用于在传输介质上与各种其他装置通信的单元。针对不同的用户设备,用户接口930还可以是能够外接内接需要设备的接口,连接的设备包括但不限于小键盘、显示器、扬声器、麦克风、操纵杆等。
处理器900负责管理总线架构和通常的处理,存储器920可以存储处理器900在执行操作时所使用的数据。
可选的,所述反馈信息包括:
HARQ的ACK反馈信息或者HARQ的NACK反馈信息。
可选的,所述生成目标子帧的反馈信息,包括:
确定所述目标子帧的反馈信息的码本大小,根据所述码本大小生成所述目标子帧的反馈信息。
可选的,所述确定所述目标子帧的反馈信息的码本大小,包括:
根据特定信息确定所述目标子帧的反馈信息的码本大小,其中,所述特定信息包括如下一种或者多种:
所述目标子帧的可传输的最大下行TTI个数、配置载波个数、所述基站指示的下行配置索引值(DAI,DownlinkAssignmentIndex)信息、高层信令和传输块个数。
可选的,若所述目标子帧为下行子帧,则所述目标子帧的可传输的最大TTI个数为所述目标子帧可包含的最大TTI个数;或者
若所述目标子帧为特殊子帧,则所述目标子帧的可传输的最大TTI个数为所述目标子帧的下行时隙中可包含的最大TTI个数,所述特殊子帧至少包括下行时隙和保护间隔;或者
若所述目标子帧中存在不同TTI长度的下行数据,则所述目标子帧的可传输的最大TTI个数为所述目标子帧中最大可传输的基本TTI个数,所述基本TTI的长度为K个OFDM符号,所述K为大于或者等于1的整数;或者
若所述基站为所述UE配置了多个下行载波,则所述目标子帧的可传输的最大TTI个数在所述多个下行载波上分别进行确定,或者所述目标子帧的可传输的最大TTI个数为所述多个下行载波中在所述目标子帧中传输的最大下行TTI个数。
可选的,所述基站指示的DAI信息包括如下一种或者多种:
时域的计数下行配置索引值C-DAI、T-DAI以及频域和时域的C-DAI。
可选的,所述频域和时域的C-DAI是所述基站调度下行数据的TTI索引,且所述频域和时域的C-DAI是按照先频域后时域的顺序对调度的TTI进行计数的;
所述T-DAI是所述UE需要在上行子帧中反馈的所有下行子帧的总数,且所述T-DAI在时域上的每个子帧中更新;
所述时域的C-DAI是所述基站仅对时域上调度的下行数据的TTI索引,且所述时域的C-DAI是按照时间顺序对时域上调度的TTI进行计数的。
可选的,所述高层信令和/或传输块个数据用于确定所述目标子帧中每个TTI的反馈比特数,其中:
所述高层信令为用于指示是否使用码字合并,若合并,则所述目标子帧中每个TTI的反馈比特数为1,若不合并,则所述目标子帧中每个TTI的反馈比特数由载波传输模式确定;或者
所述高层信令为用于指示所述目标子帧中每个TTI的反馈比特数;或者
所述传输块个数为所述目标子帧中每个TTI的反馈比特数。
可选的,所述根据所述码本大小生成所述目标子帧的反馈信息,包括:
将至少一个载波中的目标子帧的反馈比特进行级联得到所述码本大小的码本,以生成所述目标子帧的反馈信息,其中,每个载波中的目标子帧的反馈比特按照TTI编号进行排序;或者
将所述目标子帧的反馈比特按照DAI信息进行排序,得到所述码本大小的码本,以生成所述目标子帧的反馈信息;或者
将至少一个载波中的目标子帧的反馈比特进行级联得到所述码本大小的码本,以生成所述目标子帧的反馈信息,其中,每个载波的反馈比特按照DAI信息进行排序。
可选的,所述TTI编号为按照TTI实际传输顺序进行的编号;或者
所述TTI编号为按照基本TTI顺序进行的编号,所述基本TTI的长度为K个OFDM符号,所述K为大于或者等于1的整数。
可选的,所述TTI编号为按照基本TTI顺序进行的编号时,所述UE接收到的TTI的编号为该TTI的第一个OFDM符号所属的基本TTI的编号。
可选的,所述在所述目标子帧的下一个子帧中向基站传输所述反馈信息,包括:
在所述目标子帧的下一个子帧中最后x个OFDM符号中向基站传输所述反馈信息,所述x为大于或者等于1的整数;或者
在所述目标子帧的下一个子帧中的特定资源中向基站传输所述反馈信息,其中,所述特定资源通过所述目标子帧中下行传输的TTI长度和位置确定,或者所述特定资源通过高层信令和/或调度下行TTI的信令指示。
可选的,所述在所述目标子帧的下一个子帧中向基站传输所述反馈信息,包括:
在所述目标子帧的下一个子帧中采用sPUCCH格式向基站传输所述反馈信息;或者
在所述目标子帧的下一个子帧中采用sPUSCH格式向基站传输所述反馈信息。
可选的,所述目标子帧在时域上为包括z个OFDM符号的时间段,所述目标子帧的下一个子帧在时域上为所述目标子帧的时间段的下一个所述时间段,所述z为大于或者等于1的正整数。
需要说明的是,本实施例中上述UE可以图1-图6所示的实施例中的UE,图1-图6所示实施例中UE的任意实施方式都可以被本实施例中的上述UE所实现,以及达到相同的有益效果,此处不再赘述。
参见图10,图中示出一种基站的结构,该基站包括:处理器1000、收发机1010、存储器1020、用户接口1030和总线接口,其中:
处理器1000,用于读取存储器1020中的程序,执行下列过程:
通过收发机1010接收UE在目标子帧的下一个子帧中传输的反馈信息,所述反馈信息为所述UE生成的所述目标子帧的反馈信息。
其中,收发机1010,用于在处理器1000的控制下接收和发送数据。
在图10中,总线架构可以包括任意数量的互联的总线和桥,具体由处理器1000代表的一个或多个处理器和存储器1020代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起,这些都是本领域所公知的,因此,本文不再对其进行进一步描述。总线接口提供接口。收发机1010可以是多个元件,即包括发送机和接收机,提供用于在传输介质上与各种其他装置通信的单元。针对不同的用户设备,用户接口1030还可以是能够外接内接需要设备的接口,连接的设备包括但不限于小键盘、显示器、扬声器、麦克风、操纵杆等。
处理器1000负责管理总线架构和通常的处理,存储器1020可以存储处理器1000在执行操作时所使用的数据。
可选的,所述反馈信息包括:
HARQ的ACK反馈信息或者HARQ的NACK反馈信息。
可选的,所述目标子帧的反馈信息,包括:
所述UE根据确定的所述目标子帧的反馈信息的码本大小生成的所述目标子帧的反馈信息。
可选的,所述码本大小,包括:
所述UE根据特定信息确定的所述目标子帧的反馈信息的码本大小,其中,所述特定信息包括如下一种或者多种:
所述目标子帧的可传输的最大下行TTI个数、配置载波个数、所述基站指示的DAI信息、高层信令和传输块个数。
可选的,若所述目标子帧为下行子帧,则所述目标子帧的可传输的最大TTI个数为所述目标子帧可包含的最大TTI个数;或者
若所述目标子帧为特殊子帧,则所述目标子帧的可传输的最大TTI个数为所述目标子帧的下行时隙中可包含的最大TTI个数,所述特殊子帧至少包括下行时隙和保护间隔;或者
若所述目标子帧中存在不同TTI长度的下行数据,则所述目标子帧的可传输的最大TTI个数为所述目标子帧中最大可传输的基本TTI个数,所述基本TTI的长度为K个OFDM符号,所述K为大于或者等于1的整数;或者
若所述基站为所述UE配置了多个下行载波,则所述目标子帧的可传输的最大TTI个数在所述多个下行载波上分别进行确定,或者所述目标子帧的可传输的最大TTI个数为所述多个下行载波中在所述目标子帧中传输的最大下行TTI个数。
可选的,所述基站指示的DAI信息包括如下一种或者多种:
时域的C-DAI、T-DAI以及频域和时域的C-DAI。
可选的,所述频域和时域的C-DAI是所述基站调度下行数据的TTI索引,且所述频域和时域的C-DAI是按照先频域后时域的顺序对调度的TTI进行计数的;
所述T-DAI是所述UE需要在上行子帧中反馈的所有下行子帧的总数,且所述T-DAI在时域上的每个子帧中更新;
所述时域的C-DAI是所述基站仅对时域上调度的下行数据的TTI索引,且所述时域的C-DAI是按照时间顺序对时域上调度的TTI进行计数的。
可选的,所述高层信令和/或传输块个数据用于确定所述目标子帧中每个TTI的反馈比特数,其中:
所述高层信令为用于指示是否使用码字合并,若合并,则所述目标子帧中每个TTI的反馈比特数为1,若不合并,则所述目标子帧中每个TTI的反馈比特数由载波传输模式确定;或者
所述高层信令为用于指示所述目标子帧中每个TTI的反馈比特数;或者
所述传输块个数为所述目标子帧中每个TTI的反馈比特数。
可选的,所述目标子帧的反馈信息,包括:
所述UE将至少一个载波中的目标子帧的反馈比特进行级联得到所述码本大小的码本,以生成的所述目标子帧的反馈信息,其中,每个载波中的目标子帧的反馈比特按照TTI编号进行排序;或者
所述UE将所述目标子帧的反馈比特按照DAI信息进行排序,得到所述码本大小的码本,以生成的所述目标子帧的反馈信息;或者
所述UE将至少一个载波中的目标子帧的反馈比特进行级联得到所述码本大小的码本,以生成的所述目标子帧的反馈信息,其中,每个载波的反馈比特按照DAI信息进行排序。
可选的,所述TTI编号为按照TTI实际传输顺序进行的编号;或者
所述TTI编号为按照基本TTI顺序进行的编号,所述基本TTI的长度为K个OFDM符号,所述K为大于或者等于1的整数。
可选的,所述TTI编号为按照基本TTI顺序进行的编号时,所述UE接收到的TTI的编号为该TTI的第一个OFDM符号所属的基本TTI的编号。
可选的,所述接收UE在目标子帧的下一个子帧中传输的反馈信息,包括:
接收UE在所述目标子帧的下一个子帧中最后x个OFDM符号中传输的所述反馈信息,所述x为大于或者等于1的整数;或者
接收UE在所述目标子帧的下一个子帧中的特定资源中传输的所述反馈信息,其中,所述特定资源通过所述目标子帧中下行传输的TTI长度和位置确定,或者所述特定资源通过高层信令和/或调度下行TTI的信令指示。
可选的,所述接收UE在目标子帧的下一个子帧中传输的反馈信息,包括:
接收UE在所述目标子帧的下一个子帧中采用s PUCCH格式传输的所述反馈信息;或者
接收UE在所述目标子帧的下一个子帧中采用s PUSCH格式传输的所述反馈信息。
可选的,所述目标子帧在时域上为包括z个OFDM符号的时间段,所述目标子帧的下一个子帧在时域上为所述目标子帧的时间段的下一个所述时间段,所述z为大于或者等于1的正整数。
需要说明的是,本实施例中上述基站可以图1-图6所示的实施例中的基站,图1-图6所示实施例中基站的任意实施方式都可以被本实施例中的上述基站所实现,以及达到相同的有益效果,此处不再赘述。
参见图11,图中示出一种反馈信息传输系统,包括:
UE111,用于生成目标子帧的反馈信息;
所述UE111在所述目标子帧的下一个子帧中向基站112传输所述反馈信息;
所述基站112,用于接收所述UE111在目标子帧的下一个子帧中传输的所述反馈信息。
本实施例中,UE111和基站112可以是图1-图10所示实施例中介绍的UE和基站,其实施方式都可以参见图1-图10所示的实施方式,也能达到相同的技术效果,在此不再赘述。
在本申请所提供的几个实施例中,应该理解到,所揭露方法和装置,可以通过其它的方式实现。例如,以上所描述的装置实施例仅仅是示意性的,例如,所述单元的划分,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式,例如多个单元或组件可以结合或者可以集成到另一个系统,或一些特征可以忽略,或不执行。另一点,所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口,装置或单元的间接耦合或通信连接,可以是电性,机械或其它的形式。
另外,在本公开各个实施例中的各功能单元可以集成在一个处理单元中,也可以是各个单元单独物理包括,也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现,也可以采用硬件加软件功能单元的形式实现。
上述以软件功能单元的形式实现的集成的单元,可以存储在一个计算机可读取存储介质中。上述软件功能单元存储在一个存储介质中,包括若干指令用以使得一台计算机设备(可以是个人计算机,服务器,或者网络设备等)执行本公开各个实施例所述收发方法的部分步骤。而前述的存储介质包括:U盘、移动硬盘、只读存储器(Read-Only Memory,简称ROM)、随机存取存储器(Random Access Memory,简称RAM)、磁碟或者光盘等各种可以存 储程序代码的介质。
以上所述是本公开的可选实施方式,应当指出,对于本技术领域的普通技术人员来说,在不脱离本公开所述原理的前提下,还可以作出若干改进和润饰,这些改进和润饰也应视为本公开的保护范围。

Claims (59)

  1. 一种反馈信息传输方法,包括:
    用户终端UE生成目标子帧的反馈信息;
    所述UE在所述目标子帧的下一个子帧中向基站传输所述反馈信息。
  2. 如权利要求1所述的方法,其中,所述反馈信息包括:
    混合自动重传请求HARQ的肯定确认ACK反馈信息或者HARQ的否定确认NACK反馈信息。
  3. 如权利要求1所述的方法,其中,所述UE生成目标子帧的反馈信息,包括:
    所述UE确定所述目标子帧的反馈信息的码本大小,根据所述码本大小生成所述目标子帧的反馈信息。
  4. 如权利要求3所述的方法,其中,所述UE确定所述目标子帧的反馈信息的码本大小,包括:
    所述UE根据特定信息确定所述目标子帧的反馈信息的码本大小,其中,所述特定信息包括如下一种或者多种:
    所述目标子帧的可传输的最大下行传输时间间隔TTl个数、配置载波个数、所述基站指示的下行配置索引值DAI信息、高层信令和传输块个数。
  5. 如权利要求4所述的方法,其中,若所述目标子帧为下行子帧,则所述目标子帧的可传输的最大TTl个数为所述目标子帧可包含的最大TTl个数;或者
    若所述目标子帧为特殊子帧,则所述目标子帧的可传输的最大TTl个数为所述目标子帧的下行时隙中可包含的最大TTl个数,所述特殊子帧至少包括下行时隙和保护间隔;或者
    若所述目标子帧中存在不同TTI长度的下行数据,则所述目标子帧的可传输的最大TTl个数为所述目标子帧中最大可传输的基本TTl个数,所述基本TTI的长度为K个正交频分复用技术OFDM符号,所述K为大于或者等于1的整数;或者
    若所述基站为所述UE配置了多个下行载波,则所述目标子帧的可传输 的最大TTl个数在所述多个下行载波上分别进行确定,或者所述目标子帧的可传输的最大TTl个数为所述多个下行载波中在所述目标子帧中传输的最大下行TTl个数。
  6. 如权利要求4所述的方法,其中,所述基站指示的DAI信息包括如下一种或者多种:
    时域的计数下行配置索引值C-DAI、总下行配置索引值T-DAI以及频域和时域的C-DAI。
  7. 如权利要求6所述的方法,其中,所述频域和时域的C-DAI是所述基站调度下行数据的TTI索引,且所述频域和时域的C-DAI是按照先频域后时域的顺序对调度的TTI进行计数的;
    所述T-DAI是所述UE需要在上行子帧中反馈的所有下行子帧的总数,且所述T-DAI在时域上的每个子帧中更新;
    所述时域的C-DAI是所述基站仅对时域上调度的下行数据的TTI索引,且所述时域的C-DAI是按照时间顺序对时域上调度的TTI进行计数的。
  8. 如权利要求4所述的方法,其中,所述高层信令和/或传输块个数据用于确定所述目标子帧中每个TTI的反馈比特数,其中:
    所述高层信令为用于指示是否使用码字合并,若合并,则所述目标子帧中每个TTI的反馈比特数为1,若不合并,则所述目标子帧中每个TTI的反馈比特数由载波传输模式确定;或者
    所述高层信令为用于指示所述目标子帧中每个TTI的反馈比特数;或者
    所述传输块个数为所述目标子帧中每个TTI的反馈比特数。
  9. 如权利要求3-8中任一项所述的方法,其中,所述UE根据所述码本大小生成所述目标子帧的反馈信息,包括:
    所述UE将至少一个载波中的目标子帧的反馈比特进行级联得到所述码本大小的码本,以生成所述目标子帧的反馈信息,其中,每个载波中的目标子帧的反馈比特按照TTI编号进行排序;或者
    所述UE将所述目标子帧的反馈比特按照DAI信息进行排序,得到所述码本大小的码本,以生成所述目标子帧的反馈信息;或者
    所述UE将至少一个载波中的目标子帧的反馈比特进行级联得到所述码 本大小的码本,以生成所述目标子帧的反馈信息,其中,每个载波的反馈比特按照DAI信息进行排序。
  10. 如权利要求9所述的方法,其中,所述TTI编号为按照TTI实际传输顺序进行的编号;或者
    所述TTI编号为按照基本TTI顺序进行的编号,所述基本TTI的长度为K个OFDM符号,所述K为大于或者等于1的整数。
  11. 如权利要求10所述的方法,其中,所述TTI编号为按照基本TTI顺序进行的编号时,所述UE接收到的TTI的编号为该TTI的第一个OFDM符号所属的基本TTI的编号。
  12. 如权利要求1-8中任一项所述的方法,其中,所述UE在所述目标子帧的下一个子帧中向基站传输所述反馈信息,包括:
    所述UE在所述目标子帧的下一个子帧中最后x个OFDM符号中向基站传输所述反馈信息,所述x为大于或者等于1的整数;或者
    所述UE在所述目标子帧的下一个子帧中的特定资源中向基站传输所述反馈信息,其中,所述特定资源通过所述目标子帧中下行传输的TTI长度和位置确定,或者所述特定资源通过高层信令和/或调度下行TTI的信令指示。
  13. 如权利要求1-8中任一项所述的方法,其中,所述UE在所述目标子帧的下一个子帧中向基站传输所述反馈信息,包括:
    所述UE在所述目标子帧的下一个子帧中采用短物理上行链路控制信道s PUCCH格式向基站传输所述反馈信息;或者
    所述UE在所述目标子帧的下一个子帧中采用短物理上行共享信道s PUSCH格式向基站传输所述反馈信息。
  14. 如权利要求1-8中任一项所述的方法,其中,所述目标子帧在时域上为包括z个OFDM符号的时间段,所述目标子帧的下一个子帧在时域上为所述目标子帧的时间段的下一个所述时间段,所述z为大于或者等于1的正整数。
  15. 一种反馈信息传输方法,包括:
    基站接收UE在目标子帧的下一个子帧中传输的反馈信息,所述反馈信息为所述UE生成的所述目标子帧的反馈信息。
  16. 如权利要求15所述的方法,其中,所述反馈信息包括:
    HARQ的ACK反馈信息或者HARQ的NACK反馈信息。
  17. 如权利要求15所述的方法,其中,所述目标子帧的反馈信息,包括:
    所述UE根据确定的所述目标子帧的反馈信息的码本大小生成的所述目标子帧的反馈信息。
  18. 如权利要求17所述的方法,其中,所述码本大小,包括:
    所述UE根据特定信息确定的所述目标子帧的反馈信息的码本大小,其中,所述特定信息包括如下一种或者多种:
    所述目标子帧的可传输的最大下行TTl个数、配置载波个数、所述基站指示的DAI信息、高层信令和传输块个数。
  19. 如权利要求18所述的方法,其中,若所述目标子帧为下行子帧,则所述目标子帧的可传输的最大TTl个数为所述目标子帧可包含的最大TTl个数;或者
    若所述目标子帧为特殊子帧,则所述目标子帧的可传输的最大TTl个数为所述目标子帧的下行时隙中可包含的最大TTl个数,所述特殊子帧至少包括下行时隙和保护间隔;或者
    若所述目标子帧中存在不同TTI长度的下行数据,则所述目标子帧的可传输的最大TTl个数为所述目标子帧中最大可传输的基本TTl个数,所述基本TTI的长度为K个OFDM符号,所述K为大于或者等于1的整数;或者若所述基站为所述UE配置了多个下行载波,则所述目标子帧的可传输的最大TTl个数在所述多个下行载波上分别进行确定,或者所述目标子帧的可传输的最大TTl个数为所述多个下行载波中在所述目标子帧中传输的最大下行TTl个数。
  20. 如权利要求18所述的方法,其中,所述基站指示的DAI信息包括如下一种或者多种:
    时域的C-DAI、T-DAI以及频域和时域的C-DAI。
  21. 如权利要求20所述的方法,其中,所述频域和时域的C-DAI是所述基站调度下行数据的TTI索引,且所述频域和时域的C-DAI是按照先频域后时域的顺序对调度的TTI进行计数的;
    所述T-DAI是所述UE需要在上行子帧中反馈的所有下行子帧的总数,且所述T-DAI在时域上的每个子帧中更新;
    所述时域的C-DAI是所述基站仅对时域上调度的下行数据的TTI索引,且所述时域的C-DAI是按照时间顺序对时域上调度的TTI进行计数的。
  22. 如权利要求18所述的方法,其中,所述高层信令和/或传输块个数据用于确定所述目标子帧中每个TTI的反馈比特数,其中:
    所述高层信令为用于指示是否使用码字合并,若合并,则所述目标子帧中每个TTI的反馈比特数为1,若不合并,则所述目标子帧中每个TTI的反馈比特数由载波传输模式确定;或者
    所述高层信令为用于指示所述目标子帧中每个TTI的反馈比特数;或者
    所述传输块个数为所述目标子帧中每个TTI的反馈比特数。
  23. 如权利要求17-22中任一项所述的方法,其中,所述目标子帧的反馈信息,包括:
    所述UE将至少一个载波中的目标子帧的反馈比特进行级联得到所述码本大小的码本,以生成的所述目标子帧的反馈信息,其中,每个载波中的目标子帧的反馈比特按照TTI编号进行排序;或者
    所述UE将所述目标子帧的反馈比特按照DAI信息进行排序,得到所述码本大小的码本,以生成的所述目标子帧的反馈信息;或者
    所述UE将至少一个载波中的目标子帧的反馈比特进行级联得到所述码本大小的码本,以生成的所述目标子帧的反馈信息,其中,每个载波的反馈比特按照DAI信息进行排序。
  24. 如权利要求23所述的方法,其中,所述TTI编号为按照TTI实际传输顺序进行的编号;或者
    所述TTI编号为按照基本TTI顺序进行的编号,所述基本TTI的长度为K个OFDM符号,所述K为大于或者等于1的整数。
  25. 如权利要求24所述的方法,其中,所述TTI编号为按照基本TTI顺序进行的编号时,所述UE接收到的TTI的编号为该TTI的第一个OFDM符号所属的基本TTI的编号。
  26. 如权利要求15-22中任一项所述的方法,其中,所述基站接收UE在 目标子帧的下一个子帧中传输的反馈信息,包括:
    所述基站接收UE在所述目标子帧的下一个子帧中最后x个OFDM符号中传输的所述反馈信息,所述x为大于或者等于1的整数;或者
    所述基站接收UE在所述目标子帧的下一个子帧中的特定资源中传输的所述反馈信息,其中,所述特定资源通过所述目标子帧中下行传输的TTI长度和位置确定,或者所述特定资源通过高层信令和/或调度下行TTI的信令指示。
  27. 如权利要求15-22中任一项所述的方法,其中,所述基站接收UE在目标子帧的下一个子帧中传输的反馈信息,包括:
    所述基站接收UE在所述目标子帧的下一个子帧中采用s PUCCH格式传输的所述反馈信息;或者
    所述基站接收UE在所述目标子帧的下一个子帧中采用s PUSCH格式传输的所述反馈信息。
  28. 如权利要求15-22中任一项所述的方法,其中,所述目标子帧在时域上为包括z个OFDM符号的时间段,所述目标子帧的下一个子帧在时域上为所述目标子帧的时间段的下一个所述时间段,所述z为大于或者等于1的正整数。
  29. 一种UE,包括:
    生成模块,用于生成目标子帧的反馈信息;
    传输模块,用于在所述目标子帧的下一个子帧中向基站传输所述反馈信息。
  30. 如权利要求29所述的UE,其中,所述反馈信息包括:
    HARQ的ACK反馈信息或者HARQ的NACK反馈信息。
  31. 如权利要求29所述的UE,其中,所述生成模块用于确定所述目标子帧的反馈信息的码本大小,根据所述码本大小生成所述目标子帧的反馈信息。
  32. 如权利要求31所述的UE,其中,所述生成模块用于根据特定信息确定所述目标子帧的反馈信息的码本大小,其中,所述特定信息包括如下一种或者多种:
    所述目标子帧的可传输的最大下行TTl个数、配置载波个数、所述基站指示的DAI信息、高层信令和传输块个数。
  33. 如权利要求32所述的UE,其中,若所述目标子帧为下行子帧,则所述目标子帧的可传输的最大TTl个数为所述目标子帧可包含的最大TTl个数;或者
    若所述目标子帧为特殊子帧,则所述目标子帧的可传输的最大TTl个数为所述目标子帧的下行时隙中可包含的最大TTl个数,所述特殊子帧至少包括下行时隙和保护间隔;或者
    若所述目标子帧中存在不同TTI长度的下行数据,则所述目标子帧的可传输的最大TTl个数为所述目标子帧中最大可传输的基本TTl个数,所述基本TTI的长度为K个OFDM符号,所述K为大于或者等于1的整数;或者
    若所述基站为所述UE配置了多个下行载波,则所述目标子帧的可传输的最大TTl个数在所述多个下行载波上分别进行确定,或者所述目标子帧的可传输的最大TTl个数为所述多个下行载波中在所述目标子帧中传输的最大下行TTl个数。
  34. 如权利要求32所述的UE,其中,所述基站指示的DAI信息包括如下一种或者多种:
    时域的C-DAI、T-DAI以及频域和时域的C-DAI。
  35. 如权利要求34所述的UE,其中,所述频域和时域的C-DAI是所述基站调度下行数据的TTI索引,且所述频域和时域的C-DAI是按照先频域后时域的顺序对调度的TTI进行计数的;
    所述T-DAI是所述UE需要在上行子帧中反馈的所有下行子帧的总数,且所述T-DAI在时域上的每个子帧中更新;
    所述时域的C-DAI是所述基站仅对时域上调度的下行数据的TTI索引,且所述时域的C-DAI是按照时间顺序对时域上调度的TTI进行计数的。
  36. 如权利要求32所述的UE,其中,所述高层信令和/或传输块个数据用于确定所述目标子帧中每个TTI的反馈比特数,其中:
    所述高层信令为用于指示是否使用码字合并,若合并,则所述目标子帧中每个TTI的反馈比特数为1,若不合并,则所述目标子帧中每个TTI的反 馈比特数由载波传输模式确定;或者
    所述高层信令为用于指示所述目标子帧中每个TTI的反馈比特数;或者
    所述传输块个数为所述目标子帧中每个TTI的反馈比特数。
  37. 如权利要求31-36中任一项所述的UE,其中,所述生成模块用于将至少一个载波中的目标子帧的反馈比特进行级联得到所述码本大小的码本,以生成所述目标子帧的反馈信息,其中,每个载波中的目标子帧的反馈比特按照TTI编号进行排序;或者
    所述生成模块用于将所述目标子帧的反馈比特按照DAI信息进行排序,得到所述码本大小的码本,以生成所述目标子帧的反馈信息;或者
    所述生成模块用于将至少一个载波中的目标子帧的反馈比特进行级联得到所述码本大小的码本,以生成所述目标子帧的反馈信息,其中,每个载波的反馈比特按照DAI信息进行排序。
  38. 如权利要求37所述的UE,其中,所述TTI编号为按照TTI实际传输顺序进行的编号;或者
    所述TTI编号为按照基本TTI顺序进行的编号,所述基本TTI的长度为K个OFDM符号,所述K为大于或者等于1的整数。
  39. 如权利要求38所述的UE,其中,所述TTI编号为按照基本TTI顺序进行的编号时,所述UE接收到的TTI的编号为该TTI的第一个OFDM符号所属的基本TTI的编号。
  40. 如权利要求29-36中任一项所述的UE,其中,所述传输模块用于在所述目标子帧的下一个子帧中最后x个OFDM符号中向基站传输所述反馈信息,所述x为大于或者等于1的整数;或者
    所述传输模块用于在所述目标子帧的下一个子帧中的特定资源中向基站传输所述反馈信息,其中,所述特定资源通过所述目标子帧中下行传输的TTI长度和位置确定,或者所述特定资源通过高层信令和/或调度下行TTI的信令指示。
  41. 如权利要求29-36中任一项所述的UE,其中,所述传输模块用于在所述目标子帧的下一个子帧中采用s PUCCH格式向基站传输所述反馈信息;或者
    所述传输模块用于在所述目标子帧的下一个子帧中采用s PUSCH格式向基站传输所述反馈信息。
  42. 如权利要求29-36中任一项所述的UE,其中,所述目标子帧在时域上为包括z个OFDM符号的时间段,所述目标子帧的下一个子帧在时域上为所述目标子帧的时间段的下一个所述时间段,所述z为大于或者等于1的正整数。
  43. 一种基站,包括:
    接收模块,用于接收UE在目标子帧的下一个子帧中传输的反馈信息,所述反馈信息为所述UE生成的所述目标子帧的反馈信息。
  44. 如权利要求43所述的基站,其中,所述反馈信息包括:
    HARQ的ACK反馈信息或者HARQ的NACK反馈信息。
  45. 如权利要求43所述的基站,其中,所述目标子帧的反馈信息,包括:
    所述UE根据确定的所述目标子帧的反馈信息的码本大小生成的所述目标子帧的反馈信息。
  46. 如权利要求45所述的基站,其中,所述码本大小,包括:
    所述UE根据特定信息确定的所述目标子帧的反馈信息的码本大小,其中,所述特定信息包括如下一种或者多种:
    所述目标子帧的可传输的最大下行TTl个数、配置载波个数、所述基站指示的DAI信息、高层信令和传输块个数。
  47. 如权利要求46所述的基站,其中,若所述目标子帧为下行子帧,则所述目标子帧的可传输的最大TTl个数为所述目标子帧可包含的最大TTl个数;或者
    若所述目标子帧为特殊子帧,则所述目标子帧的可传输的最大TTl个数为所述目标子帧的下行时隙中可包含的最大TTl个数,所述特殊子帧至少包括下行时隙和保护间隔;或者
    若所述目标子帧中存在不同TTI长度的下行数据,则所述目标子帧的可传输的最大TTl个数为所述目标子帧中最大可传输的基本TTl个数,所述基本TTI的长度为K个OFDM符号,所述K为大于或者等于1的整数;或者若所述基站为所述UE配置了多个下行载波,则所述目标子帧的可传输 的最大TTl个数在所述多个下行载波上分别进行确定,或者所述目标子帧的可传输的最大TTl个数为所述多个下行载波中在所述目标子帧中传输的最大下行TTl个数。
  48. 如权利要求46所述的基站,其中,所述基站指示的DAI信息包括如下一种或者多种:
    时域的C-DAI、T-DAI以及频域和时域的C-DAI。
  49. 如权利要求48所述的基站,其中,所述频域和时域的C-DAI是所述基站调度下行数据的TTI索引,且所述频域和时域的C-DAI是按照先频域后时域的顺序对调度的TTI进行计数的;
    所述T-DAI是所述UE需要在上行子帧中反馈的所有下行子帧的总数,且所述T-DAI在时域上的每个子帧中更新;
    所述时域的C-DAI是所述基站仅对时域上调度的下行数据的TTI索引,且所述时域的C-DAI是按照时间顺序对时域上调度的TTI进行计数的。
  50. 如权利要求46所述的基站,其中,所述高层信令和/或传输块个数据用于确定所述目标子帧中每个TTI的反馈比特数,其中:
    所述高层信令为用于指示是否使用码字合并,若合并,则所述目标子帧中每个TTI的反馈比特数为1,若不合并,则所述目标子帧中每个TTI的反馈比特数由载波传输模式确定;或者
    所述高层信令为用于指示所述目标子帧中每个TTI的反馈比特数;或者
    所述传输块个数为所述目标子帧中每个TTI的反馈比特数。
  51. 如权利要求45-50中任一项所述的基站,其中,所述目标子帧的反馈信息,包括:
    所述UE将至少一个载波中的目标子帧的反馈比特进行级联得到所述码本大小的码本,以生成的所述目标子帧的反馈信息,其中,每个载波中的目标子帧的反馈比特按照TTI编号进行排序;或者
    所述UE将所述目标子帧的反馈比特按照DAI信息进行排序,得到所述码本大小的码本,以生成的所述目标子帧的反馈信息;或者
    所述UE将至少一个载波中的目标子帧的反馈比特进行级联得到所述码本大小的码本,以生成的所述目标子帧的反馈信息,其中,每个载波的反馈 比特按照DAI信息进行排序。
  52. 如权利要求51所述的基站,其中,所述TTI编号为按照TTI实际传输顺序进行的编号;或者
    所述TTI编号为按照基本TTI顺序进行的编号,所述基本TTI的长度为K个OFDM符号,所述K为大于或者等于1的整数。
  53. 如权利要求52所述的基站,其中,所述TTI编号为按照基本TTI顺序进行的编号时,所述UE接收到的TTI的编号为该TTI的第一个OFDM符号所属的基本TTI的编号。
  54. 如权利要求43-50中任一项所述的基站,其中,所述接收模块用于接收UE在所述目标子帧的下一个子帧中最后x个OFDM符号中传输的所述反馈信息,所述x为大于或者等于1的整数;或者
    所述接收模块用于接收UE在所述目标子帧的下一个子帧中的特定资源中传输的所述反馈信息,其中,所述特定资源通过所述目标子帧中下行传输的TTI长度和位置确定,或者所述特定资源通过高层信令和/或调度下行TTI的信令指示。
  55. 如权利要求43-50中任一项所述的基站,其中,所述接收模块用于接收UE在所述目标子帧的下一个子帧中采用s PUCCH格式传输的所述反馈信息;或者
    所述接收模块用于接收UE在所述目标子帧的下一个子帧中采用s PUSCH格式传输的所述反馈信息。
  56. 如权利要求43-50中任一项所述的基站,其中,所述目标子帧在时域上为包括z个OFDM符号的时间段,所述目标子帧的下一个子帧在时域上为所述目标子帧的时间段的下一个所述时间段,所述z为大于或者等于1的正整数。
  57. 一种反馈信息传输系统,包括:
    UE,用于生成目标子帧的反馈信息;
    所述UE在所述目标子帧的下一个子帧中向基站传输所述反馈信息;
    所述基站,用于接收所述UE在目标子帧的下一个子帧中传输的所述反馈信息。
  58. 一种UE,包括:处理器和存储器;其中,所述处理器用于读取所述存储器中的程序,执行下列过程:
    生成目标子帧的反馈信息;
    在所述目标子帧的下一个子帧中向基站传输所述反馈信息。
  59. 一种基站,包括:处理器和存储器;其中,所述处理器用于读取所述存储器中的程序,执行下列过程:
    接收UE在目标子帧的下一个子帧中传输的反馈信息,所述反馈信息为所述UE生成的所述目标子帧的反馈信息。
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