WO2017162008A1 - 一种ack/nack反馈方法及相关设备 - Google Patents

一种ack/nack反馈方法及相关设备 Download PDF

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Publication number
WO2017162008A1
WO2017162008A1 PCT/CN2017/075354 CN2017075354W WO2017162008A1 WO 2017162008 A1 WO2017162008 A1 WO 2017162008A1 CN 2017075354 W CN2017075354 W CN 2017075354W WO 2017162008 A1 WO2017162008 A1 WO 2017162008A1
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WIPO (PCT)
Prior art keywords
physical downlink
ack
downlink control
control channel
nack feedback
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PCT/CN2017/075354
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English (en)
French (fr)
Inventor
高雪娟
郑方政
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电信科学技术研究院
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Publication date
Application filed by 电信科学技术研究院 filed Critical 电信科学技术研究院
Priority to KR1020187030909A priority Critical patent/KR20180126049A/ko
Priority to JP2018550455A priority patent/JP6895453B2/ja
Priority to KR1020217000844A priority patent/KR102322472B1/ko
Priority to US16/088,117 priority patent/US11139940B2/en
Priority to EP17769285.2A priority patent/EP3435579A4/en
Publication of WO2017162008A1 publication Critical patent/WO2017162008A1/zh

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    • 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
    • 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
    • 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
    • H04L1/1854Scheduling and prioritising arrangements
    • 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
    • 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
    • H04L1/1867Arrangements specially adapted for the transmitter end
    • H04L1/1896ARQ related signaling
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • 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
    • H04L5/0058Allocation criteria
    • 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
    • H04L5/0078Timing of allocation
    • H04L5/0082Timing of allocation at predetermined intervals
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0091Signaling for the administration of the divided path
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • 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
    • H04W72/20Control channels or signalling for resource management
    • H04W72/23Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0001Arrangements for dividing the transmission path
    • H04L5/0003Two-dimensional division
    • H04L5/0005Time-frequency
    • H04L5/0007Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H04L5/001Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/14Two-way operation using the same type of signal, i.e. duplex

Definitions

  • the present application relates to the field of communications technologies, and in particular, to an ACK/NACK feedback method and related devices.
  • the existing Long Term Evolution (LTE) Frequency Division Duplex (FDD) system uses Frame Structure Type 1, referred to as FS1.
  • FS1 Frequency Division Duplex
  • the uplink and downlink transmissions use different carrier frequencies, and the uplink and downlink transmissions use the same frame structure.
  • Figure 1 shows the structure of FS1.
  • a 10ms-length radio frame contains 10 1ms subframes. Each subframe is divided into two 0.5ms-length slots, and uplink and downlink data are sent.
  • the Transmission Time Interval (TTI) is 1 ms.
  • the existing LTE Time Division Duplex (TDD) system uses Frame Structure Type 2 (FS2).
  • FS2 Frame Structure Type 2
  • uplink and downlink transmissions use different subframes or different time slots on the same frequency.
  • Figure 2 shows the structure of the FS2.
  • Each 10 ms length radio frame in FS2 consists of two 5 ms length half frames, each of which contains five 1 ms length subframes.
  • the sub-frames in FS2 are classified into three types: downlink sub-frames, uplink sub-frames, and special sub-frames.
  • Each special sub-frame consists of Downlink Pilot Time Slot (DwPTS) and Guard Period (Guard Period, GP) and Uplink Pilot Time Slot (UpPTS) are composed of three parts.
  • DwPTS Downlink Pilot Time Slot
  • Guard Period Guard Period
  • UpPTS Uplink Pilot Time Slot
  • the DwPTS can be used to transmit downlink pilot, downlink service data, and downlink control signaling; the GP does not transmit any signal; the UpPTS can only be used to transmit random access signals and Sounding Reference Symbols (SRS), which cannot be used for transmission.
  • SRS Sounding Reference Symbols
  • Each field includes at least one downlink subframe and at least one uplink subframe, and at most one special subframe. Table 7 lists the seven uplink and downlink subframe configurations supported by FS2.
  • the ACK/NACK feedback information of the downlink subframe numbered n is transmitted in the uplink subframe numbered n+4.
  • the uplink and downlink subframe division as shown in Table 1 needs to be performed. Therefore, the ACK/NACK feedback information of different downlink subframes may need to be transmitted in the same uplink subframe.
  • Table 2 according to each element in the set K: ⁇ k 0 , k 1 , ...
  • the downlink subframe of the /NACK feedback (including the downlink subframe numbered nk, including the special subframe), the same uplink subframe needs to feed back the ACK/NACK feedback information of the M downlink subframes, and M is the set K.
  • the number of elements, different uplink subframes, and different TDD uplink and downlink configuration values are not necessarily the same.
  • the numbers in Table 2 are in units of radio frames. If the subframe number n-k is less than zero, it indicates that the subframe belongs to the previous radio frame.
  • one terminal can work on multiple carriers at the same time, but only ACK/NACK feedback information can be transmitted in the Physical Uplink Control Channel (PUCCH) of some carriers, such as the primary member carrier (Primary). Component Carrier, PCC). Therefore, the terminal needs to feed back ACK/NACK feedback information corresponding to multiple carriers in one uplink subframe.
  • the carriers aggregated by the terminal are all FDD carriers, the ACK/NACK feedback timing on each carrier is performed according to n+4.
  • the ACK/NACK feedback timing on each carrier is in accordance with the feedback timing shown in Table 2 corresponding to the TDD uplink and downlink configuration. If the TDD uplink and downlink configurations of the aggregated TDD carrier are different, the secondary component carrier (Secondary Component Carrier, The SCC defines the reference TDD uplink and downlink configuration, and performs ACK/NACK feedback according to the feedback timing in Table 2 corresponding to the TDD uplink and downlink configuration.
  • the carrier aggregated by the terminal includes both the FDD carrier and the TDD carrier
  • the FDD carrier is used as the PCC
  • the ACK/NACK feedback timing on each carrier is performed according to n+4.
  • the TDD carrier is used as the PCC, it needs to be followed.
  • the TDD uplink and downlink configuration for the SCC definition, and perform ACK/NACK feedback according to the feedback timing in Table 2 corresponding to the TDD uplink and downlink configuration.
  • the aggregation carrier is further divided into multiple carrier groups, and ACK/NACK feedback is performed on the PUCCH on one carrier in each carrier group.
  • each carrier group is aggregated according to the carrier group.
  • One of the above situations corresponding to the carrier determines the feedback timing of the SCC in the carrier group.
  • TTI length of non-1ms the TTI length of the downlink transmission may change. Different TTI length data requires different transmission and processing delays. Therefore, the time position at which ACK/NACK feedback can be performed at the earliest is different. For this case, ACK/NACK is performed according to a fixed ACK/NACK feedback timing in the existing mechanism. The feedback method is no longer applicable, and a new mechanism is needed to determine the transmission time position of an ACK/NACK for downlink transmission, thereby ensuring normal feedback of ACK/NACK for downlink transmission.
  • An embodiment of the present application provides an ACK/NACK feedback method and a related device, which are used to solve different transmission and processing delays required for data of different TTI lengths, and the time position at which the ACK/NACK feedback can be performed at the earliest is different, and cannot be guaranteed.
  • an embodiment of the present application provides an ACK/NACK feedback method, including:
  • the terminal receives the first physical downlink control channel, where the downlink control information DCI of the first physical downlink control channel carries a first indication field, where the first indication field is used to determine a time domain location of the ACK/NACK feedback information;
  • the first indication field is specifically used to indicate K time domain locations that can be used to transmit ACK/NACK feedback information, where K is a positive integer.
  • the first indication field includes P bits of information, where among them, Indicates rounding up.
  • the first indication field is used to indicate a radio frame or a subframe or a subframe or a time slot or a transmission time interval TTI or a minislot or a time slot in which the ACK/NACK feedback information is transmitted.
  • the location of the symbol is used to indicate a radio frame or a subframe or a subframe or a time slot or a transmission time interval TTI or a minislot or a time slot in which the ACK/NACK feedback information is transmitted. The location of the symbol.
  • the method further includes:
  • the terminal Determining, by the terminal, a radio frame or a subframe or a subframe or a time slot or a micro time slot in which a time domain location of the ACK/NACK feedback information indicated by the first indication domain is located according to the first TTI length and/or the second TTI length a position of a slot or a symbol, where the first TTI length is a TTI length of the first physical downlink control channel and/or a first physical downlink shared channel corresponding to the first physical downlink control channel, where The two TTI length is a pre-configured or agreed TTI length for determining the time domain location of the ACK/NACK feedback information.
  • the method further includes:
  • the terminal according to the subframe number and/or the TTI number and/or the symbol number and/or the slot number and/or the minislot number in which the first physical downlink control channel is transmitted, and the first indication domain Determining the first indication of the subframe number and/or the TTI number and/or the symbol number and/or the slot number and/or the size of the minislot number or the sequence of the time slot location of the indicated ACK/NACK feedback information
  • the location of the radio frame or field or subframe or TTI or slot or minislot or symbol in which the time domain location of the ACK/NACK feedback information indicated by the field is located.
  • the time domain location of the ACK/NACK feedback information is one of the following manners or a combination thereof:
  • the radio frame in which the time domain location of the ACK/NACK feedback information is located is: the first physical downlink control channel or the radio frame in which the first physical downlink shared channel corresponding to the first physical downlink control channel is transmitted, Or the nth radio frame after the radio frame in which the first physical downlink control channel or the first physical downlink shared channel corresponding to the first physical downlink control channel is transmitted, where the n1 is a positive integer;
  • the field in which the time domain location of the ACK/NACK feedback information is located is: the first physical downlink control channel or a field in which the first physical downlink shared channel corresponding to the first physical downlink control channel is transmitted, Or the nth second field after the first physical downlink control channel or the field corresponding to the first physical downlink shared channel corresponding to the first physical downlink control channel, where the n2 is a positive integer;
  • the subframe in which the time domain location of the ACK/NACK feedback information is located is: the first physical downlink control channel or the subframe in which the first physical downlink shared channel corresponding to the first physical downlink control channel is transmitted, Or the nth subframe after the first physical downlink control channel or the subframe corresponding to the first physical downlink shared channel corresponding to the first physical downlink control channel, where the n3 is a positive integer;
  • the time slot in which the time domain location of the ACK/NACK feedback information is located is: the first physical downlink control channel or a time slot in which the first physical downlink shared channel corresponding to the first physical downlink control channel is transmitted, Or the nth time slot after the time slot of the first physical downlink control channel or the first physical downlink shared channel corresponding to the first physical downlink control channel, where the n4 is a positive integer;
  • the micro time slot in which the time domain location of the ACK/NACK feedback information is located is: the first physical downlink control channel or the micro time when the first physical downlink shared channel corresponding to the first physical downlink control channel is transmitted a slot, or an nth microslot after the first physical downlink control channel or a microslot in which the first physical downlink shared channel corresponding to the first physical downlink control channel is located, where the n5 Is a positive integer;
  • the TTI where the time domain location of the ACK/NACK feedback information is located is: the TTI of the first physical downlink control channel or the first physical downlink shared channel corresponding to the first physical downlink control channel, or The nth TTI after the TTI where the first physical downlink control channel or the first physical downlink shared channel corresponding to the first physical downlink control channel is located, where the n6 is a positive integer;
  • the symbol of the time domain location of the ACK/NACK feedback information is: the symbol of the first physical downlink control channel or the first physical downlink shared channel corresponding to the first physical downlink control channel, or An nth symbol following a symbol in which the first physical downlink control channel or the first physical downlink shared channel corresponding to the first physical downlink control channel is transmitted, where the n7 is a positive integer.
  • the first indication field indicates a location of a first symbol that is required to be used for transmission of the ACK/NACK feedback information, and the ACK/NACK feedback information occupies a starting point of the first symbol.
  • the first indication field indicates a location of a first TTI required to be transmitted by the ACK/NACK feedback information, and the ACK/NACK feedback information occupies consecutive A uplink TTIs starting from the first TTI; or,
  • the first indication field indicates a location of a first time slot required to be transmitted by the ACK/NACK feedback information, and the ACK/NACK feedback information occupies consecutive A times starting from the first time slot Gap; or,
  • the first indication field indicates a location of a first minislot required to be transmitted by the ACK/NACK feedback information, and the ACK/NACK feedback information occupies a continuous A starting from the first minislot Micro-slots; or,
  • the first indication field indicates a location of a first subframe that is required to be used for transmission of the ACK/NACK feedback information, and the ACK/NACK feedback information occupies consecutive A subframes starting from the first subframe .
  • the terminal is in the ACK/NACK
  • the time domain location of the feedback information, transmitting the ACK/NACK feedback information including:
  • the first physical downlink control of each of the plurality of the first physical downlink control channels according to a downlink allocation index DAI indication field in a DCI in the plurality of the first physical downlink control channels
  • the channel is transmitted in the time domain position of the ACK/NACK feedback information.
  • the time domain location is any one of the following:
  • Subframe number and/or symbol number and/or TTI number and/or time slot number and/or minislot number are assigned to Subframe number and/or symbol number and/or TTI number and/or time slot number and/or minislot number.
  • the embodiment of the present application provides an ACK/NACK feedback method, including:
  • the base station sends a first physical downlink control channel to the terminal, where the downlink control information DCI of the first physical downlink control channel carries a first indication field, where the first indication field is used to determine a time domain location of the ACK/NACK feedback information;
  • the ACK/NACK feedback information of the downlink shared channel is determined.
  • the first indication field is specifically used to indicate K time domain locations that can be used to transmit ACK/NACK feedback information, where K is a positive integer.
  • the first indication field includes P bits of information, where among them, Indicates rounding up.
  • the first indication field is used to indicate a radio frame or a subframe or a subframe or a time slot or a transmission time interval TTI or a minislot or a time slot in which the ACK/NACK feedback information is transmitted.
  • the location of the symbol is used to indicate a radio frame or a subframe or a subframe or a time slot or a transmission time interval TTI or a minislot or a time slot in which the ACK/NACK feedback information is transmitted. The location of the symbol.
  • the method further includes:
  • the base station Determining, by the base station, a radio frame or a subframe or a subframe or a time slot or a micro time zone in which a time domain location of the ACK/NACK feedback information indicated by the first indication domain is located according to the first TTI length and/or the second TTI length a position of a slot or a symbol, where the first TTI length is a TTI length of the first physical downlink control channel and/or a first physical downlink shared channel corresponding to the first physical downlink control channel, where The two TTI length is a pre-configured or agreed TTI length for determining the time domain location of the ACK/NACK feedback information.
  • the method further includes:
  • the first indication domain according to the subframe number and/or the TTI number and/or the symbol number and/or the slot number and/or the minislot number in which the first physical downlink control channel is transmitted. Determining the first indication of the subframe number and/or the TTI number and/or the symbol number and/or the slot number and/or the size of the minislot number or the sequence of the time slot location of the indicated ACK/NACK feedback information The location of the radio frame or field or subframe or TTI or slot or minislot or symbol in which the time domain location of the ACK/NACK feedback information indicated by the field is located.
  • the time domain location of the ACK/NACK feedback information is one of the following manners or a combination thereof:
  • the radio frame in which the time domain location of the ACK/NACK feedback information is located is: the first physical downlink control channel or the radio frame in which the first physical downlink shared channel corresponding to the first physical downlink control channel is transmitted, Or the nth radio frame after the radio frame in which the first physical downlink control channel or the first physical downlink shared channel corresponding to the first physical downlink control channel is transmitted, where the n1 is a positive integer;
  • the field in which the time domain location of the ACK/NACK feedback information is located is: the first physical downlink control channel or a field in which the first physical downlink shared channel corresponding to the first physical downlink control channel is transmitted, Or the nth second field after the first physical downlink control channel or the field corresponding to the first physical downlink shared channel corresponding to the first physical downlink control channel, where the n2 is a positive integer;
  • the subframe in which the time domain location of the ACK/NACK feedback information is located is: the first physical downlink control channel or the subframe in which the first physical downlink shared channel corresponding to the first physical downlink control channel is transmitted, Or the first physical downlink control channel or the first physical downlink shared channel corresponding to the first physical downlink control channel
  • the time slot in which the time domain location of the ACK/NACK feedback information is located is: the first physical downlink control channel or a time slot in which the first physical downlink shared channel corresponding to the first physical downlink control channel is transmitted, Or the nth time slot after the time slot of the first physical downlink control channel or the first physical downlink shared channel corresponding to the first physical downlink control channel, where the n4 is a positive integer;
  • the micro time slot in which the time domain location of the ACK/NACK feedback information is located is: the first physical downlink control channel or the micro time when the first physical downlink shared channel corresponding to the first physical downlink control channel is transmitted a slot, or an nth microslot after the first physical downlink control channel or a microslot in which the first physical downlink shared channel corresponding to the first physical downlink control channel is located, where the n5 Is a positive integer;
  • the TTI where the time domain location of the ACK/NACK feedback information is located is: the TTI of the first physical downlink control channel or the first physical downlink shared channel corresponding to the first physical downlink control channel, or The nth TTI after the TTI where the first physical downlink control channel or the first physical downlink shared channel corresponding to the first physical downlink control channel is located, where the n6 is a positive integer;
  • the symbol of the time domain location of the ACK/NACK feedback information is: the symbol of the first physical downlink control channel or the first physical downlink shared channel corresponding to the first physical downlink control channel, or An nth symbol following a symbol in which the first physical downlink control channel or the first physical downlink shared channel corresponding to the first physical downlink control channel is transmitted, where the n7 is a positive integer.
  • the first indication field indicates a location of a first symbol that is required to be used for transmission of the ACK/NACK feedback information, and the ACK/NACK feedback information occupies a starting point of the first symbol.
  • the first indication field indicates a location of a first TTI required to be transmitted by the ACK/NACK feedback information, and the ACK/NACK feedback information occupies consecutive A uplink TTIs starting from the first TTI; or,
  • the first indication field indicates a location of a first time slot required to be transmitted by the ACK/NACK feedback information, and the ACK/NACK feedback information occupies consecutive A times starting from the first time slot Gap; or,
  • the first indication field indicates a location of a first minislot required to be transmitted by the ACK/NACK feedback information, and the ACK/NACK feedback information occupies a continuous A starting from the first minislot Micro-slots; or,
  • the first indication field indicates a location of a first subframe that is required to be used for transmission of the ACK/NACK feedback information, and the ACK/NACK feedback information occupies consecutive A subframes starting from the first subframe .
  • the method further includes:
  • each first physical downlink control of the plurality of the first physical downlink control channels is determined according to a downlink allocation index DAI indication field in a DCI of the plurality of the first physical downlink control channels Cascading of channels or ACK/NACK feedback information of a first physical downlink shared channel corresponding to each first physical downlink control channel
  • the ACK/NACK feedback information received at the time domain location is parsed according to the determined cascading order.
  • the time domain location is any one of the following:
  • Subframe number and/or symbol number and/or TTI number and/or time slot number and/or minislot number are assigned to Subframe number and/or symbol number and/or TTI number and/or time slot number and/or minislot number.
  • an embodiment of the present application provides a terminal, including:
  • a receiving module configured to receive a first physical downlink control channel, where the downlink control information DCI of the first physical downlink control channel carries a first indication domain, where the first indication domain is used to determine a time domain of ACK/NACK feedback information position;
  • a feedback module configured to determine, according to the first indication domain, a time domain location of the first physical downlink control channel or the ACK/NACK feedback information of the first physical downlink shared channel corresponding to the first physical downlink control channel, And transmitting the ACK/NACK feedback information at a time domain location of the ACK/NACK feedback information.
  • the first indication field is specifically used to indicate K time domain locations that can be used to transmit ACK/NACK feedback information, where K is a positive integer.
  • the first indication field includes P bits of information, where among them, Indicates rounding up.
  • the first indication field is used to indicate a radio frame or a subframe or a subframe or a time slot or a transmission time interval TTI or a minislot or a time slot in which the ACK/NACK feedback information is transmitted.
  • the location of the symbol is used to indicate a radio frame or a subframe or a subframe or a time slot or a transmission time interval TTI or a minislot or a time slot in which the ACK/NACK feedback information is transmitted. The location of the symbol.
  • the feedback module is further configured to:
  • the first TTI length is a TTI length of the first physical downlink control channel and/or a first physical downlink shared channel corresponding to the first physical downlink control channel
  • the second TTI length A pre-configured or agreed TTI length for determining the time domain location of the ACK/NACK feedback information.
  • the feedback module is further configured to:
  • an ACK indicated by the first indication field according to a subframe number and/or a TTI number and/or a symbol number and/or a slot number and/or a microslot number in which the first physical downlink control channel is transmitted.
  • Determining the indication of the first indication field by the subframe number and/or the TTI number and/or the symbol number and/or the slot number and/or the size of the minislot number or the sequence of the time slot location of the /NACK feedback information The location of the radio frame or field or subframe or TTI or slot or minislot or symbol in which the time domain location of the ACK/NACK feedback information is located.
  • the time domain location of the ACK/NACK feedback information is one of the following manners or a combination thereof:
  • the radio frame in which the time domain location of the ACK/NACK feedback information is located is: the first physical downlink control channel or the radio frame in which the first physical downlink shared channel corresponding to the first physical downlink control channel is transmitted, Or the first physical downlink control channel or the first physical downlink sharing corresponding to the first physical downlink control channel An nth radio frame subsequent to the radio frame in which the channel is transmitted, where the n1 is a positive integer;
  • the field in which the time domain location of the ACK/NACK feedback information is located is: the first physical downlink control channel or a field in which the first physical downlink shared channel corresponding to the first physical downlink control channel is transmitted, Or the nth second field after the first physical downlink control channel or the field corresponding to the first physical downlink shared channel corresponding to the first physical downlink control channel, where the n2 is a positive integer;
  • the subframe in which the time domain location of the ACK/NACK feedback information is located is: the first physical downlink control channel or the subframe in which the first physical downlink shared channel corresponding to the first physical downlink control channel is transmitted, Or the nth subframe after the first physical downlink control channel or the subframe corresponding to the first physical downlink shared channel corresponding to the first physical downlink control channel, where the n3 is a positive integer;
  • the time slot in which the time domain location of the ACK/NACK feedback information is located is: the first physical downlink control channel or a time slot in which the first physical downlink shared channel corresponding to the first physical downlink control channel is transmitted, Or the nth time slot after the time slot of the first physical downlink control channel or the first physical downlink shared channel corresponding to the first physical downlink control channel, where the n4 is a positive integer;
  • the micro time slot in which the time domain location of the ACK/NACK feedback information is located is: the first physical downlink control channel or the micro time when the first physical downlink shared channel corresponding to the first physical downlink control channel is transmitted a slot, or an nth microslot after the first physical downlink control channel or a microslot in which the first physical downlink shared channel corresponding to the first physical downlink control channel is located, where the n5 Is a positive integer;
  • the TTI where the time domain location of the ACK/NACK feedback information is located is: the TTI of the first physical downlink control channel or the first physical downlink shared channel corresponding to the first physical downlink control channel, or The nth TTI after the TTI where the first physical downlink control channel or the first physical downlink shared channel corresponding to the first physical downlink control channel is located, where the n6 is a positive integer;
  • the symbol of the time domain location of the ACK/NACK feedback information is: the symbol of the first physical downlink control channel or the first physical downlink shared channel corresponding to the first physical downlink control channel, or An nth symbol following a symbol in which the first physical downlink control channel or the first physical downlink shared channel corresponding to the first physical downlink control channel is transmitted, where the n7 is a positive integer.
  • the first indication field indicates a location of a first symbol that is required to be used for transmission of the ACK/NACK feedback information, and the ACK/NACK feedback information occupies a starting point of the first symbol.
  • the first indication field indicates a location of a first TTI required to be transmitted by the ACK/NACK feedback information, and the ACK/NACK feedback information occupies consecutive A uplink TTIs starting from the first TTI; or,
  • the first indication field indicates a location of a first time slot required to be transmitted by the ACK/NACK feedback information, and the ACK/NACK feedback information occupies consecutive A times starting from the first time slot Gap; or,
  • the first indication field indicates a location of a first minislot required to be transmitted by the ACK/NACK feedback information,
  • the ACK/NACK feedback information occupies consecutive A mini-slots starting from the first mini-slot; or
  • the first indication field indicates a location of a first subframe that is required to be used for transmission of the ACK/NACK feedback information, and the ACK/NACK feedback information occupies consecutive A subframes starting from the first subframe .
  • the feedback module is specifically configured to:
  • the time domain location of the ACK/NACK feedback information determined by the terminal according to the first indication field of the multiple physical downlink control channels is the same, according to the DCI in the plurality of the first physical downlink control channels a downlink allocation index DAI indication field, where each of the plurality of the first physical downlink control channels or the first physical downlink corresponding to each first physical downlink control channel is shared After the ACK/NACK feedback information of the channel is cascaded, the ACK/NACK feedback information is transmitted in the time domain position.
  • the time domain location is any one of the following:
  • Subframe number and/or symbol number and/or TTI number and/or time slot number and/or minislot number are assigned to Subframe number and/or symbol number and/or TTI number and/or time slot number and/or minislot number.
  • an embodiment of the present application provides a base station, including:
  • a sending module configured to send a first physical downlink control channel to the terminal, where the downlink control information DCI of the first physical downlink control channel carries a first indication field, where the first indication field is used to determine ACK/NACK feedback information Time domain location
  • a receiving module configured to receive, according to a time domain location of the ACK/NACK feedback information that is determined according to the first indication field, the first physical downlink control channel that is fed back by the terminal, or corresponding to the first physical downlink control channel The ACK/NACK feedback information of the first physical downlink shared channel.
  • the first indication field is specifically used to indicate K time domain locations that can be used to transmit ACK/NACK feedback information, where K is a positive integer.
  • the first indication field includes P bits of information, where among them, Indicates rounding up.
  • the first indication field is used to indicate a radio frame or a subframe or a subframe or a time slot or a transmission time interval TTI or a minislot or a time slot in which the ACK/NACK feedback information is transmitted.
  • the location of the symbol is used to indicate a radio frame or a subframe or a subframe or a time slot or a transmission time interval TTI or a minislot or a time slot in which the ACK/NACK feedback information is transmitted. The location of the symbol.
  • a processing module is further included for:
  • the first TTI length is a TTI length of the first physical downlink control channel and/or a first physical downlink shared channel corresponding to the first physical downlink control channel
  • the second TTI length A pre-configured or agreed TTI length for determining the time domain location of the ACK/NACK feedback information.
  • a processing module is further included for:
  • a subframe number and/or TTI number and/or symbol number where the first physical downlink control channel is transmitted and/or Or a slot number and/or a minislot number a subframe number and/or a TTI number and/or a symbol number and/or a time slot of a time domain location of the ACK/NACK feedback information indicated by the first indication field. Determining the size or sequence of the number and/or the minislot number, determining the radio frame or field or subframe or TTI or time slot or micro of the time domain location of the ACK/NACK feedback information indicated by the first indication field The location of the time slot or symbol.
  • the time domain location of the ACK/NACK feedback information is one of the following manners or a combination thereof:
  • the radio frame in which the time domain location of the ACK/NACK feedback information is located is: the first physical downlink control channel or the radio frame in which the first physical downlink shared channel corresponding to the first physical downlink control channel is transmitted, Or the nth radio frame after the radio frame in which the first physical downlink control channel or the first physical downlink shared channel corresponding to the first physical downlink control channel is transmitted, where the n1 is a positive integer;
  • the field in which the time domain location of the ACK/NACK feedback information is located is: the first physical downlink control channel or a field in which the first physical downlink shared channel corresponding to the first physical downlink control channel is transmitted, Or the nth second field after the first physical downlink control channel or the field corresponding to the first physical downlink shared channel corresponding to the first physical downlink control channel, where the n2 is a positive integer;
  • the subframe in which the time domain location of the ACK/NACK feedback information is located is: the first physical downlink control channel or the subframe in which the first physical downlink shared channel corresponding to the first physical downlink control channel is transmitted, Or the nth subframe after the first physical downlink control channel or the subframe corresponding to the first physical downlink shared channel corresponding to the first physical downlink control channel, where the n3 is a positive integer;
  • the time slot in which the time domain location of the ACK/NACK feedback information is located is: the first physical downlink control channel or a time slot in which the first physical downlink shared channel corresponding to the first physical downlink control channel is transmitted, Or the nth time slot after the time slot of the first physical downlink control channel or the first physical downlink shared channel corresponding to the first physical downlink control channel, where the n4 is a positive integer;
  • the micro time slot in which the time domain location of the ACK/NACK feedback information is located is: the first physical downlink control channel or the micro time when the first physical downlink shared channel corresponding to the first physical downlink control channel is transmitted a slot, or an nth microslot after the first physical downlink control channel or a microslot in which the first physical downlink shared channel corresponding to the first physical downlink control channel is located, where the n5 Is a positive integer;
  • the TTI where the time domain location of the ACK/NACK feedback information is located is: the TTI of the first physical downlink control channel or the first physical downlink shared channel corresponding to the first physical downlink control channel, or The nth TTI after the TTI where the first physical downlink control channel or the first physical downlink shared channel corresponding to the first physical downlink control channel is located, where the n6 is a positive integer;
  • the symbol of the time domain location of the ACK/NACK feedback information is: the symbol of the first physical downlink control channel or the first physical downlink shared channel corresponding to the first physical downlink control channel, or a first physical downlink control channel or a first physical downlink shared channel corresponding to the first physical downlink control channel
  • the first indication field indicates a location of a first symbol that is required to be used for transmission of the ACK/NACK feedback information, and the ACK/NACK feedback information occupies a starting point of the first symbol.
  • the first indication field indicates a location of a first TTI required to be transmitted by the ACK/NACK feedback information, and the ACK/NACK feedback information occupies consecutive A uplink TTIs starting from the first TTI; or,
  • the first indication field indicates a location of a first time slot required to be transmitted by the ACK/NACK feedback information, and the ACK/NACK feedback information occupies consecutive A times starting from the first time slot Gap; or,
  • the first indication field indicates a location of a first minislot required to be transmitted by the ACK/NACK feedback information, and the ACK/NACK feedback information occupies a continuous A starting from the first minislot Micro-slots; or,
  • the first indication field indicates a location of a first subframe that is required to be used for transmission of the ACK/NACK feedback information, and the ACK/NACK feedback information occupies consecutive A subframes starting from the first subframe .
  • a processing module is further included for:
  • the base station determines that the time domain locations of the ACK/NACK feedback information indicated by the first indication domain of the multiple physical downlink control channels of the terminal are the same, according to the multiple of the first physical downlink control a downlink allocation index DAI indication field in the DCI in the channel, and determining, for each of the plurality of the first physical downlink control channels, a first physical downlink control channel or a first corresponding to each first physical downlink control channel a cascading sequence of ACK/NACK feedback information of a physical downlink shared channel, and parsing ACK/NACK feedback information received at the time domain location according to the determined cascading order.
  • the time domain location is any one of the following:
  • Subframe number and/or symbol number and/or TTI number and/or time slot number and/or minislot number are assigned to Subframe number and/or symbol number and/or TTI number and/or time slot number and/or minislot number.
  • the embodiment of the present application provides another terminal, including a processor, a memory, and a transceiver, where the transceiver is configured to receive and send data under the control of the processor, where the preset program is stored in the memory.
  • the processor reads the program saved in the memory and executes the following process according to the program:
  • the first physical downlink control channel is received by the transceiver, where the downlink control information DCI of the first physical downlink control channel carries a first indication field, where the first indication field is used to determine a time domain location of the ACK/NACK feedback information;
  • the first indication field is specifically used to indicate K time domain locations that can be used to transmit ACK/NACK feedback information, where K is a positive integer.
  • the first indication field includes P bits of information, where among them, Indicates rounding up.
  • the first indication field is used to indicate a radio frame or a subframe or a subframe or a time slot or a transmission time interval TTI or a minislot or a time slot in which the ACK/NACK feedback information is transmitted.
  • the location of the symbol is used to indicate a radio frame or a subframe or a subframe or a time slot or a transmission time interval TTI or a minislot or a time slot in which the ACK/NACK feedback information is transmitted. The location of the symbol.
  • the processor is further configured to:
  • the first TTI length is a TTI length of the first physical downlink control channel and/or a first physical downlink shared channel corresponding to the first physical downlink control channel
  • the second TTI length A pre-configured or agreed TTI length for determining the time domain location of the ACK/NACK feedback information.
  • the processor is further configured to:
  • an ACK indicated by the first indication field according to a subframe number and/or a TTI number and/or a symbol number and/or a slot number and/or a microslot number in which the first physical downlink control channel is transmitted.
  • Determining the indication of the first indication field by the subframe number and/or the TTI number and/or the symbol number and/or the slot number and/or the size of the minislot number or the sequence of the time slot location of the /NACK feedback information The location of the radio frame or field or subframe or TTI or slot or minislot or symbol in which the time domain location of the ACK/NACK feedback information is located.
  • the time domain location of the ACK/NACK feedback information is one of the following manners or a combination thereof:
  • the radio frame in which the time domain location of the ACK/NACK feedback information is located is: the first physical downlink control channel or the radio frame in which the first physical downlink shared channel corresponding to the first physical downlink control channel is transmitted, Or the nth radio frame after the radio frame in which the first physical downlink control channel or the first physical downlink shared channel corresponding to the first physical downlink control channel is transmitted, where the n1 is a positive integer;
  • the field in which the time domain location of the ACK/NACK feedback information is located is: the first physical downlink control channel or a field in which the first physical downlink shared channel corresponding to the first physical downlink control channel is transmitted, Or the nth second field after the first physical downlink control channel or the field corresponding to the first physical downlink shared channel corresponding to the first physical downlink control channel, where the n2 is a positive integer;
  • the subframe in which the time domain location of the ACK/NACK feedback information is located is: the first physical downlink control channel or the subframe in which the first physical downlink shared channel corresponding to the first physical downlink control channel is transmitted, Or the nth subframe after the first physical downlink control channel or the subframe corresponding to the first physical downlink shared channel corresponding to the first physical downlink control channel, where the n3 is a positive integer;
  • the time slot in which the time domain location of the ACK/NACK feedback information is located is: the first physical downlink control channel or a time slot in which the first physical downlink shared channel corresponding to the first physical downlink control channel is transmitted, Or the stated a first physical downlink control channel or an nth time slot subsequent to a time slot in which the first physical downlink shared channel corresponding to the first physical downlink control channel is located, where the n4 is a positive integer;
  • the micro time slot in which the time domain location of the ACK/NACK feedback information is located is: the first physical downlink control channel or the micro time when the first physical downlink shared channel corresponding to the first physical downlink control channel is transmitted a slot, or an nth microslot after the first physical downlink control channel or a microslot in which the first physical downlink shared channel corresponding to the first physical downlink control channel is located, where the n5 Is a positive integer;
  • the TTI where the time domain location of the ACK/NACK feedback information is located is: the TTI of the first physical downlink control channel or the first physical downlink shared channel corresponding to the first physical downlink control channel, or The nth TTI after the TTI where the first physical downlink control channel or the first physical downlink shared channel corresponding to the first physical downlink control channel is located, where the n6 is a positive integer;
  • the symbol of the time domain location of the ACK/NACK feedback information is: the symbol of the first physical downlink control channel or the first physical downlink shared channel corresponding to the first physical downlink control channel, or An nth symbol following a symbol in which the first physical downlink control channel or the first physical downlink shared channel corresponding to the first physical downlink control channel is transmitted, where the n7 is a positive integer.
  • the first indication field indicates a location of a first symbol that is required to be used for transmission of the ACK/NACK feedback information, and the ACK/NACK feedback information occupies a starting point of the first symbol.
  • the first indication field indicates a location of a first TTI required to be transmitted by the ACK/NACK feedback information, and the ACK/NACK feedback information occupies consecutive A uplink TTIs starting from the first TTI; or,
  • the first indication field indicates a location of a first time slot required to be transmitted by the ACK/NACK feedback information, and the ACK/NACK feedback information occupies consecutive A times starting from the first time slot Gap; or,
  • the first indication field indicates a location of a first minislot required to be transmitted by the ACK/NACK feedback information, and the ACK/NACK feedback information occupies a continuous A starting from the first minislot Micro-slots; or,
  • the first indication field indicates a location of a first subframe that is required to be used for transmission of the ACK/NACK feedback information, and the ACK/NACK feedback information occupies consecutive A subframes starting from the first subframe .
  • the processor is specifically configured to:
  • the time domain location of the ACK/NACK feedback information determined by the terminal according to the first indication field of the multiple physical downlink control channels is the same, according to the DCI in the plurality of the first physical downlink control channels a downlink allocation index DAI indication field, where each of the plurality of the first physical downlink control channels or the first physical downlink corresponding to each first physical downlink control channel is shared After the ACK/NACK feedback information of the channel is cascaded, the ACK/NACK feedback information is transmitted in the time domain position.
  • the time domain location is any one of the following:
  • Subframe number and/or symbol number and/or TTI number and/or time slot number and/or minislot number are assigned to Subframe number and/or symbol number and/or TTI number and/or time slot number and/or minislot number.
  • the embodiment of the present application further provides another base station, including a processor, a memory, and a transceiver, where the transceiver is configured to receive and send data under the control of the processor, where the preset program is stored in the memory.
  • the processor reads the program saved in the memory, and executes the following process according to the program:
  • the transceiver Transmitting, by the transceiver, the first physical downlink control channel to the terminal, where the downlink control information DCI of the first physical downlink control channel carries a first indication field, where the first indication field is used to determine a time domain of the ACK/NACK feedback information position;
  • the transceiver And receiving, by the transceiver, the first physical downlink control channel fed back by the terminal or the first corresponding to the first physical downlink control channel, in a time domain location of the ACK/NACK feedback information determined according to the first indication field ACK/NACK feedback information of a physical downlink shared channel.
  • the first indication field is specifically used to indicate K time domain locations that can be used to transmit ACK/NACK feedback information, where K is a positive integer.
  • the first indication field includes P bits of information, where among them, Indicates rounding up.
  • the first indication field is used to indicate a radio frame or a subframe or a subframe or a time slot or a transmission time interval TTI or a minislot or a time slot in which the ACK/NACK feedback information is transmitted.
  • the location of the symbol is used to indicate a radio frame or a subframe or a subframe or a time slot or a transmission time interval TTI or a minislot or a time slot in which the ACK/NACK feedback information is transmitted. The location of the symbol.
  • the processor is further configured to:
  • the first TTI length is a TTI length of the first physical downlink control channel and/or a first physical downlink shared channel corresponding to the first physical downlink control channel
  • the second TTI length A pre-configured or agreed TTI length for determining the time domain location of the ACK/NACK feedback information.
  • the processor is further configured to:
  • an ACK indicated by the first indication field according to a subframe number and/or a TTI number and/or a symbol number and/or a slot number and/or a microslot number in which the first physical downlink control channel is transmitted.
  • Determining the indication of the first indication field by the subframe number and/or the TTI number and/or the symbol number and/or the slot number and/or the size of the minislot number or the sequence of the time slot location of the /NACK feedback information The location of the radio frame or field or subframe or TTI or slot or minislot or symbol in which the time domain location of the ACK/NACK feedback information is located.
  • the time domain location of the ACK/NACK feedback information is one of the following manners or a combination thereof:
  • the radio frame in which the time domain location of the ACK/NACK feedback information is located is: the first physical downlink control channel or the radio frame in which the first physical downlink shared channel corresponding to the first physical downlink control channel is transmitted, Or The nth radio frame after the radio frame in which the first physical downlink control channel or the first physical downlink shared channel corresponding to the first physical downlink control channel is transmitted, where the n1 is a positive integer;
  • the field in which the time domain location of the ACK/NACK feedback information is located is: the first physical downlink control channel or a field in which the first physical downlink shared channel corresponding to the first physical downlink control channel is transmitted, Or the nth second field after the first physical downlink control channel or the field corresponding to the first physical downlink shared channel corresponding to the first physical downlink control channel, where the n2 is a positive integer;
  • the subframe in which the time domain location of the ACK/NACK feedback information is located is: the first physical downlink control channel or the subframe in which the first physical downlink shared channel corresponding to the first physical downlink control channel is transmitted, Or the nth subframe after the first physical downlink control channel or the subframe corresponding to the first physical downlink shared channel corresponding to the first physical downlink control channel, where the n3 is a positive integer;
  • the time slot in which the time domain location of the ACK/NACK feedback information is located is: the first physical downlink control channel or a time slot in which the first physical downlink shared channel corresponding to the first physical downlink control channel is transmitted, Or the nth time slot after the time slot of the first physical downlink control channel or the first physical downlink shared channel corresponding to the first physical downlink control channel, where the n4 is a positive integer;
  • the micro time slot in which the time domain location of the ACK/NACK feedback information is located is: the first physical downlink control channel or the micro time when the first physical downlink shared channel corresponding to the first physical downlink control channel is transmitted a slot, or an nth microslot after the first physical downlink control channel or a microslot in which the first physical downlink shared channel corresponding to the first physical downlink control channel is located, where the n5 Is a positive integer;
  • the TTI where the time domain location of the ACK/NACK feedback information is located is: the TTI of the first physical downlink control channel or the first physical downlink shared channel corresponding to the first physical downlink control channel, or The nth TTI after the TTI where the first physical downlink control channel or the first physical downlink shared channel corresponding to the first physical downlink control channel is located, where the n6 is a positive integer;
  • the symbol of the time domain location of the ACK/NACK feedback information is: the symbol of the first physical downlink control channel or the first physical downlink shared channel corresponding to the first physical downlink control channel, or An nth symbol following a symbol in which the first physical downlink control channel or the first physical downlink shared channel corresponding to the first physical downlink control channel is transmitted, where the n7 is a positive integer.
  • the first indication field indicates a location of a first symbol that is required to be used for transmission of the ACK/NACK feedback information, and the ACK/NACK feedback information occupies a starting point of the first symbol.
  • the first indication field indicates a location of a first TTI required to be transmitted by the ACK/NACK feedback information, and the ACK/NACK feedback information occupies consecutive A uplink TTIs starting from the first TTI; or,
  • the first indication field indicates a location of a first time slot required for transmission of the ACK/NACK feedback information,
  • the ACK/NACK feedback information occupies consecutive A time slots starting from the first time slot;
  • the first indication field indicates a location of a first minislot required to be transmitted by the ACK/NACK feedback information, and the ACK/NACK feedback information occupies a continuous A starting from the first minislot Micro-slots; or,
  • the first indication field indicates a location of a first subframe that is required to be used for transmission of the ACK/NACK feedback information, and the ACK/NACK feedback information occupies consecutive A subframes starting from the first subframe .
  • the processor is further configured to:
  • the base station determines that the time domain locations of the ACK/NACK feedback information indicated by the first indication domain of the multiple physical downlink control channels of the terminal are the same, according to the multiple of the first physical downlink control a downlink allocation index DAI indication field in the DCI in the channel, and determining, for each of the plurality of the first physical downlink control channels, a first physical downlink control channel or a first corresponding to each first physical downlink control channel a cascading sequence of ACK/NACK feedback information of a physical downlink shared channel, and parsing ACK/NACK feedback information received at the time domain location according to the determined cascading order.
  • the time domain location is any one of the following:
  • Subframe number and/or symbol number and/or TTI number and/or time slot number and/or minislot number are assigned to Subframe number and/or symbol number and/or TTI number and/or time slot number and/or minislot number.
  • the time domain location of the ACK/NACK feedback information transmission is notified through the physical downlink control channel, so that the eNB can flexibly control the ACK/NACK load in different uplink transmissions while reducing the feedback delay as much as possible. Balanced resources to improve system performance.
  • FIG. 1 is a schematic structural view of FS1 in the background art
  • FIG. 2 is a schematic structural view of FS2 in the background art
  • 3A is a schematic flowchart of a method for performing ACK/NACK feedback on a terminal side according to an embodiment of the present application
  • FIG. 3B is a schematic flowchart of a method for performing ACK/NACK feedback information acquisition by a base station side according to an embodiment of the present disclosure
  • FIG. 4 is a schematic diagram of a transmission time domain location of ACK/NACK feedback information corresponding to downlink transmission of a terminal occupying different resources in different subframes according to a DCI according to a DCI in the first embodiment;
  • FIG. 5 is a schematic diagram of a transmission time domain location of ACK/NACK feedback information corresponding to downlink transmission of a terminal occupying different resources in different subframes according to a DCI according to a second embodiment of the present application;
  • FIG. 6 is a schematic diagram of another transmission time domain location of ACK/NACK feedback information corresponding to downlink transmission of a terminal occupying different resources in different subframes according to DCI in the second embodiment of the present application;
  • FIG. 7 is a schematic diagram of a transmission time domain location of ACK/NACK feedback information corresponding to downlink transmission of a terminal occupying different resources in different subframes according to a DCI according to a third embodiment of the present application;
  • FIG. 8 is a schematic diagram of a transmission time domain location of ACK/NACK feedback information corresponding to downlink transmission of a terminal occupying different resources in different subframes according to a DCI according to a fourth embodiment of the present application;
  • FIG. 9 is a schematic diagram of another transmission time domain location of ACK/NACK feedback information corresponding to downlink transmission of a terminal occupying different resources in different subframes according to DCI in the fourth embodiment of the present application;
  • FIG. 10 is a schematic structural diagram of a terminal in an embodiment of the present application.
  • FIG. 11 is a schematic structural diagram of a base station in an embodiment of the present application.
  • FIG. 12 is a schematic structural diagram of another terminal in the embodiment of the present application.
  • FIG. 13 is a schematic structural diagram of another base station according to an embodiment of the present application.
  • Step 301 The terminal receives the first physical downlink control channel, where the downlink control information (Downlink Control Information (DCI) of the first physical downlink control channel carries a first indication field, where the first indication field is used to determine an ACK/NACK.
  • DCI Downlink Control Information
  • the length of the TTI of the first physical downlink control channel is less than 1 ms, or the length of the TTI of the first physical downlink shared channel corresponding to the first physical downlink control channel is less than 1 ms.
  • the length of the TTI of the first physical downlink control channel may be greater than 1 ms, or the length of the TTI of the first physical downlink shared channel corresponding to the first physical downlink control channel is greater than 1 ms.
  • N subframes are used as a TTI, where N is a positive integer greater than one.
  • the TTI is a pre-agreed or configured minimum transmission unit, including A1 symbols, and A1 is a pre-determined or configured positive integer.
  • the first indication field is specifically used to indicate K time domain locations that can be used for transmitting ACK/NACK feedback information, where K is a positive integer.
  • the first indication field includes information of P bits, among them, Indicates rounding up.
  • the time domain location may be a subframe number and/or a symbol number and/or a transmission time interval TTI number and/or a slot number and/or a minislot number.
  • a symbol number and/or a TTI number and/or a minislot number in one or more time slots are provided.
  • the time domain location may specifically have the following definition method:
  • Any one or part of one or more radio frames or fields containing subframes or times of symbols for uplink transmission A symbol in a slot or a minislot, wherein the A is a number of symbols required for transmission of the ACK/NACK feedback information;
  • All or part of one or more radio frames or fields include A symbols of not less than a preset number of consecutive symbols for uplink transmission, or A symbols in a time slot or a minislot, where A is the number of symbols required to transmit the ACK/NACK feedback information; or
  • All or part of one or more radio frames or fields includes A TTIs for a number of consecutive symbols for uplink transmission not less than a preset number of subframes or slots or mini-slots, where A is the number of TTIs required for the transmission of the ACK/NACK feedback information; or
  • All or part of one or more radio frames or fields includes A minislots for a number of consecutive symbols for uplink transmission not less than a preset number of subframes or slots, wherein the A The number of microslots required to transmit the ACK/NACK feedback information; or
  • All or part of one or more radio frames or fields includes A time slots in a number of consecutive symbols for uplink transmission not less than a preset number, wherein the A is the ACK /NACK feedback the number of time slots required for information transmission; or,
  • All or a part of one or more radio frames or fields includes A subframes of a number of consecutive symbols for uplink transmission not less than a preset number, wherein the A is the ACK/ NACK feedback information transmission required Number of subframes;
  • the sub-frame or the uplink sub-frame that satisfies the condition may be an odd-numbered uplink subframe or an even-numbered uplink subframe, or a previous partial uplink subframe, or a later partial uplink subframe, or a specific indicated partial uplink subframe, such as a subframe. 2 and / or 7; for TDD, may include UpPTS or not include UpPTS;
  • the A symbols are the first A consecutive symbols in the subframe, or the last A consecutive symbols in the subframe, or A consecutive symbols at a specified position in the subframe; or
  • the A TTIs are the first A consecutive TTIs in the subframe, or the last A consecutive TTIs in the subframe, or A consecutive TTIs at specified positions in the subframe; or
  • the A mini-slots are the first A consecutive mini-slots in the sub-frame, or the last A consecutive micro-slots in the sub-frame, or are at a specified position in the sub-frame A consecutive minislot; or,
  • the A time slots are the first A consecutive time slots in the subframe (which may be one or more subframes), or the last A consecutive time slots in the subframe, or the child A consecutive time slot at a specified position in the frame; or,
  • the A subframes are the first A consecutive subframes in one radio frame or a half frame, or the last A consecutive subframes in the subframe, or A of the specified positions in the subframe. Continuous sub-frames.
  • a mini-slot is a pre-defined or configured unit containing a Z symbol, for example, a unit containing 1 or 2 symbols; of course, it may be other symbols.
  • Step 302 The terminal determines, according to the first indication field, a time domain location of the ACK/NACK feedback information of the first physical downlink control channel or the first physical downlink shared channel corresponding to the first physical downlink control channel, and Transmitting the ACK/NACK feedback information at a time domain location of the ACK/NACK feedback information.
  • the first indication field indicates a location of a first symbol that is required to be used for transmission of the ACK/NACK feedback information, and the ACK/NACK feedback information occupies consecutive A starting from the first symbol.
  • the uplink symbol where A is a positive integer; or, the first indication field indicates a location of a first TTI that is required to be used for transmission of the ACK/NACK feedback information, and the ACK/NACK feedback information is occupied by the first One consecutive uplink TTI with one TTI as the starting point; or,
  • the first indication field indicates a location of a first time slot required to be transmitted by the ACK/NACK feedback information, and the ACK/NACK feedback information occupies consecutive A times starting from the first time slot Gap; or,
  • the first indication field indicates a location of a first minislot required to be transmitted by the ACK/NACK feedback information, and the ACK/NACK feedback information occupies a continuous A starting from the first minislot Micro-slots; or,
  • the first indication field indicates a location of a first subframe that is required to be used for transmission of the ACK/NACK feedback information, and the ACK/NACK feedback information occupies consecutive A subframes starting from the first subframe .
  • the first indication field is used to indicate a location of a radio frame or a field or a subframe or a time slot or a TTI or a minislot or symbol in which the time domain location of the ACK/NACK feedback information is transmitted.
  • the terminal determines a radio frame or a field in which the time domain location of the ACK/NACK feedback information is transmitted or Specific implementations of subframes or slots or locations of mini-slots or symbols include, but are not limited to, the following two:
  • the terminal determines, according to the first TTI length and/or the second TTI length, a radio frame or a subframe or a subframe in which a time domain location of the ACK/NACK feedback information indicated by the first indication domain is located. Or a location of a time slot or a minislot or a symbol, wherein the first TTI length is the first physical downlink control channel and/or the first physical downlink shared channel corresponding to the first physical downlink control channel
  • the TTI length, the second TTI length is a pre-configured or agreed TTI length for determining a time domain location of the ACK/NACK feedback information.
  • the first physical downlink control channel and/or the first physical downlink shared channel corresponding to the first physical downlink control channel are replaced by "the downlink transmission", that is, the terminal Determining ACK/NACK feedback according to the processing delay of the downlink transmission and the time domain resource in one radio frame or half radio frame or one subframe or one slot or one minislot indicated by the first indication field
  • the time domain location of the information; the processing delay is specifically a process of processing the downlink transmission and generating corresponding feedback information, for example, the processing delay may be defined as: the TTI length of the downlink transmission *k, or pre-configured or The agreed TTI length *k for determining the ACK/NACK time domain location, or max (preconfigured or agreed TTI length for determining the ACK/NACK time domain location, the TTI length of the downlink transmission) *k.
  • max(a, b) is the maximum value in a and b.
  • the processing time delay does not include the receiving time of the downlink transmission itself, and the time domain location of the feedback information is determined according to the processing delay, which includes but is not limited to the following two methods:
  • Method 1 Determine the time domain location as:
  • the time domain resource indicated by the first first indication field after the time length of L1*k or after L2*k symbols is satisfied
  • the TTI number indicated by the TTI length of the downlink transmission and the time domain resource indicated by the first first indication field after the TTI numbered n+k, where the TTI number of the downlink transmission is located Is n;
  • time domain resource indicated by the first one of the first indication fields of the L2*k symbols or the end time position or the end symbol position of the downlink transmission is not less than L1*k;
  • the L1 is a TTI length of the downlink transmission in units of time, for example, the TTI length of the downlink transmission is L1 milliseconds
  • L2 is a TTI length of the downlink transmission in units of symbols, for example, the downlink transmission.
  • the length of the TTI is L2 symbols.
  • Method 2 Determine the time domain location as:
  • the TTI number the TTI number indicated by the first first indication field after the TTI numbered n+k, where the TTI number of the downlink transmission is n;
  • the L3 is the specific TTI length in units of time, for example, the specific TTI length is L3 milliseconds, and the L2 is the specific TTI length in units of symbols, for example, the specific TTI length is L4.
  • the specific TTI length is a pre-configured or agreed TTI length for determining the ACK/NACK time domain location, or max (pre-configured or agreed TTI length for determining the ACK/NACK time domain location, The length of the TTI for downlink transmission).
  • the processing delay includes the receiving time of the downlink transmission itself, determining the time domain location of the feedback information according to the processing delay, the specific process is similar to the foregoing process, except that the starting position of the downlink transmission needs to be backward. And delaying the extension of the processing, determining the time domain resource indicated by the first first indication domain that satisfies the delay;
  • the time domain resource indicated by the first one of the first indication fields that meets the processing delay is in a radio frame or a field or a subframe or a time slot or a mini-slot or TTI of the downlink transmission or In the symbol, still in the radio frame or field or subframe or slot or mini-slot or TTI or the next radio frame of the TTI or the last 1 or 2 fields or the following X1 sub-frames or after X2 Time slots or after X3 microslots or after X4 TTIs or after X5 symbols.
  • the time domain resource indicated by the first indication field in the radio frame in which the downlink transmission is located satisfies the processing delay, determining that the time domain resource indicated by the first indication domain is in the current radio frame; If the time domain resource indicated by the first indication field in the radio frame in which the downlink transmission is located does not satisfy the processing delay, or if the first radio frame in the next radio frame of the downlink transmission is in the first radio frame And indicating that the time domain resource indicated by the domain is the last time domain location that satisfies the processing delay, determining that the time domain resource indicated by the first indication domain is in a next radio frame of the current radio frame.
  • the judgment of the half frame position/subframe position/slot position/microslot position/TTI position/symbol position is similar and will not be described again.
  • the terminal is configured according to the subframe number in which the first physical downlink control channel is transmitted, and the size of the subframe number of the time domain location of the ACK/NACK feedback information indicated by the first indication field. a sequence of determining a location of a radio frame or a field or a subframe in which a time domain location of the ACK/NACK feedback information indicated by the first indication field is located;
  • the terminal determines, according to the slot number in which the first physical downlink control channel is transmitted, and the size or sequence of the slot number of the time domain location of the ACK/NACK feedback information indicated by the first indication field. a location of a radio frame or a field or a subframe or a time slot in which a time domain location of the ACK/NACK feedback information indicated by the first indication field is located;
  • the terminal determines, according to the TTI number of the first physical downlink control channel transmission, the size or the sequence of the TTI number of the time domain location of the ACK/NACK feedback information indicated by the first indication field, a location of a radio frame or a field or a time slot or a TTI in which a time domain location of the ACK/NACK feedback information indicated by the indication field is located;
  • the sequence or the sequence of the microslot number of the time domain location of the ACK/NACK feedback information indicated by the first indication field according to the micro slot number in which the first physical downlink control channel is transmitted, Determining a location of a radio frame or a subframe or a subframe or a time slot or a minislot where a time domain location of the ACK/NACK feedback information indicated by the first indication field is located;
  • the terminal determines, according to the symbol number in which the first physical downlink control channel is transmitted, and the size or the sequence of the symbol number of the time domain location of the ACK/NACK feedback information indicated by the first indication field.
  • the time domain location of the ACK/NACK feedback information indicated by the first indication field is not earlier than the first physical downlink control channel or the first physical downlink shared channel transmission corresponding to the first physical downlink control channel.
  • Time domain location For example, if the first physical downlink control channel or the first physical downlink shared channel corresponding to the first physical downlink control channel is transmitted in subframe #5, the time domain location of the ACK/NACK feedback information indicated by the first indication field is In the subframe #0, the subframe #0 is earlier than the subframe #5 in the radio frame in which the first physical downlink control channel or the first physical downlink shared channel corresponding to the first physical downlink control channel is transmitted.
  • the time domain location of the ACK/NACK feedback information is one of the following modes or a combination thereof:
  • the radio frame in which the time domain location of the ACK/NACK feedback information is located is: the first physical downlink control channel or the radio frame in which the first physical downlink shared channel corresponding to the first physical downlink control channel is transmitted, Or the nth radio frame after the radio frame in which the first physical downlink control channel or the first physical downlink shared channel corresponding to the first physical downlink control channel is transmitted, where the n1 is a positive integer;
  • the field in which the time domain location of the ACK/NACK feedback information is located is: the first physical downlink control channel or a field in which the first physical downlink shared channel corresponding to the first physical downlink control channel is transmitted, Or the nth second field after the first physical downlink control channel or the field corresponding to the first physical downlink shared channel corresponding to the first physical downlink control channel, where the n2 is a positive integer;
  • the subframe in which the time domain location of the ACK/NACK feedback information is located is: the first physical downlink control channel or the subframe in which the first physical downlink shared channel corresponding to the first physical downlink control channel is transmitted, Or the nth subframe after the first physical downlink control channel or the subframe corresponding to the first physical downlink shared channel corresponding to the first physical downlink control channel, where the n3 is a positive integer;
  • the time slot in which the time domain location of the ACK/NACK feedback information is located is: the first physical downlink control channel or a time slot in which the first physical downlink shared channel corresponding to the first physical downlink control channel is transmitted, Or the nth time slot after the time slot of the first physical downlink control channel or the first physical downlink shared channel corresponding to the first physical downlink control channel, where the n4 is a positive integer;
  • the micro time slot in which the time domain location of the ACK/NACK feedback information is located is: the first physical downlink control channel or the micro time when the first physical downlink shared channel corresponding to the first physical downlink control channel is transmitted a slot, or an nth microslot after the first physical downlink control channel or a microslot in which the first physical downlink shared channel corresponding to the first physical downlink control channel is located, where the n5 Is a positive integer;
  • the TTI where the time domain location of the ACK/NACK feedback information is located is: the TTI of the first physical downlink control channel or the first physical downlink shared channel corresponding to the first physical downlink control channel, or The nth TTI after the TTI where the first physical downlink control channel or the first physical downlink shared channel corresponding to the first physical downlink control channel is located, where the n6 is a positive integer;
  • the symbol of the time domain location of the ACK/NACK feedback information is: the symbol of the first physical downlink control channel or the first physical downlink shared channel corresponding to the first physical downlink control channel, or An nth symbol following a symbol in which the first physical downlink control channel or the first physical downlink shared channel corresponding to the first physical downlink control channel is transmitted, where the n7 is a positive integer.
  • the terminal according to the multiple of the first physical a DAI indication field (hereinafter referred to as a second indication field) in the DCI in the downlink control channel, and each of the plurality of the first physical downlink control channels or each of the first physical
  • the ACK/NACK feedback information is transmitted in a time domain position.
  • the DAI is used as a counter, and can be used to indicate the total number of downlink transmissions scheduled to be ACK/NACK feedback in the same time domain position scheduled on the same carrier until the current downlink transmission, or to indicate that the current downlink transmission is in the current downlink transmission.
  • the DAI value it can be determined whether there is downlink transmission loss in the intermediate position, for example, the DAI of the first downlink transmission is 1 and the DAI of the second downlink transmission is 3, indicating that the first and second are received.
  • a downlink transmission is lost between the downlink transmissions, and a NACK can be generated as feedback information for the lost downlink transmission, and the DAI value can be inferred to be 2, so that the ACK/NACK of the three downlink transmissions are ranked according to the DAI value.
  • sorting cascades are performed in ascending order of DAI.
  • the total number of the DAI indications may not include the first physical downlink shared channel of the Semi-Persistent Scheduling (SPS), or the total number of the first physical downlink control channel indicating the release of the downlink SPS resources and the corresponding The number of the first physical downlink shared channel of the first physical downlink control channel.
  • SPS Semi-Persistent Scheduling
  • the second indication field is 2-bit information
  • the indication value of the second indication field is as shown in Table 3. If the number of downlink transmissions for ACK/NACK feedback information transmission in an uplink position does not exceed 4, a one-to-one mapping method may be adopted. When there are more than 4, a multi-to-one mapping manner of modulo 4, such as "00", is adopted. One or five or nine can be indicated.
  • the second indication field is only two-bit information as an example. For the case where the second indication field is other bit information, refer to the manner of Table 3, and details are not described herein again.
  • the terminal determines that the time difference between the time domain location and the first physical downlink control channel is smaller than a processing delay, or if the time domain location is determined to be the first physical downlink control channel.
  • the time difference between the corresponding first physical downlink shared channel is smaller than the processing delay, and the ACK/NACK feedback information corresponding to the first physical downlink control channel is not fed back, or the NCK is fed back in the time domain position; otherwise, The time domain location feeds back ACK/NACK feedback information corresponding to the first physical downlink control channel.
  • the processing delay is defined as above and will not be repeated here.
  • the first physical downlink control channel has a corresponding first physical downlink shared channel (the case includes the dynamically scheduled first physical downlink shared channel and the SPS first physical downlink shared channel, if it is the SPS first physical downlink a shared channel, where the first physical downlink control channel is used to activate the SPS first physical downlink shared channel transmission, where the ACK/NACK feedback information is ACK/NACK feedback information of the first physical downlink shared channel
  • the ACK/NACK feedback information is ACK/NACK feedback information of the first physical downlink control channel.
  • the ACK/NACK transmitted by the SPS first physical downlink shared channel activated by the first physical downlink control channel is transmitted.
  • the time domain location of the feedback information is determined according to the first indication domain carried in the DCI of the first physical downlink control channel.
  • the terminal feeds back ACK/NACK feedback information corresponding to the first physical downlink control channel in the time domain location by using a PUCCH or a Physical Uplink Shared Channel (PUSCH).
  • the PUCCH structure can reuse the mapping and spreading mode of the PUCCH format 4/5, and only changes the time domain transmission length and/or the frequency domain resource size; of course, other PUCCH format structures can also be used.
  • the detailed method for performing ACK/NACK feedback information acquisition by the base station side is as follows:
  • Step 401 The base station sends a first physical downlink control channel to the terminal, where the first physical downlink control channel is located.
  • the row control information DCI carries a first indication field, where the first indication field is used to determine a time domain location of the ACK/NACK feedback information.
  • the first indication field indicates the time domain location of the ACK/NACK feedback information
  • Step 402 The base station receives, according to the time domain location of the ACK/NACK feedback information determined by the first indication field, the first physical downlink control channel fed back by the terminal or corresponding to the first physical downlink control channel. ACK/NACK feedback information of the first physical downlink shared channel.
  • the base station side determines the time domain location corresponding to the ACK/NACK feedback information of each downlink transmission according to the analysis similar to the terminal side, and determines the ordering manner of the ACK/NACK feedback information, so as to be consistent with the operation of the terminal, so that the terminal can be correctly parsed.
  • the ACK/NACK feedback information refer to the related descriptions in steps 301 to 302, and details are not described here.
  • an FDD carrier using a conventional Cyclic Prefix is taken as an example.
  • the last symbol in each uplink subframe of a radio frame can be used to transmit ACK/NACK feedback information
  • the number of bits occupied by the first indication field in the DCI for indicating the time domain location of the ACK/NACK feedback information is 4, wherein the correspondence between the first indication field and the time domain location of the indicated ACK/NACK feedback information As shown in Table 4.
  • Table 4 Correspondence between the first indication field in the DCI and the time domain location of the indicated ACK/NACK feedback information
  • First indicator field First indicator field value or time domain location index
  • Time domain location of ACK/NACK feedback information 0000 1 The last symbol in subframe #0 0001 2 The last symbol in subframe #1 0010 3 The last symbol in subframe #2 0011 4 The last symbol in subframe #3 0100 5 The last symbol in subframe #4 0101 6 The last symbol in subframe #5 0110 7 The last symbol in subframe #6 0111 8 The last symbol in subframe #7 1000 9 The last symbol in subframe #8 1001 10 The last symbol in subframe #9 Reserved Reserved Reserved
  • FIG. 4 is a schematic diagram of a transmission time domain location of ACK/NACK feedback information corresponding to downlink transmission of a terminal occupying different resources in different subframes according to DCI.
  • the specific instructions are as follows:
  • the first of the DCI1 of the physical downlink control channel corresponding to the first downlink transmission transmitted in the subframe #5 The indication field is all "0101", and the first indication field in the DCI2 of the physical downlink control channel corresponding to the second downlink transmission transmitted in the subframe #5 is also "0101", and the subframe indicated by the first indication field is The number is not less than the subframe number in which the DCI transmission is located, and the last symbol of the subframe indicated by the first indication field in the current radio frame (ie, the radio frame in which the DCI transmission is located) satisfies the feedback delay, and then determines The ACK/NACK feedback information indicating the 1st and 2nd downlink transmissions is transmitted on the last symbol in subframe #5 in the current radio frame.
  • the ACK/NACK feedback information corresponding to the first and second downlink transmissions are sorted, and the transmission is obtained after the determined time domain location transmission sequence ACK/NACK sequence.
  • DAI Downlink Assignment Index
  • the first indication field of the DCI3 of the physical downlink control channel corresponding to the third downlink transmission transmitted in the subframe #5 is "0110”
  • the fourth downlink transmission transmitted in the subframe #5 corresponds to
  • the first indication field in the DCI4 of the physical downlink control channel is also “0110”
  • the subframe number indicated by the first indication field is not less than the subframe number in which the DCI transmission is located, and the first indication domain is in the current radio frame.
  • the ACK/NACK feedback information indicating the third and fourth downlink transmissions is transmitted on the last symbol in the subframe #6 in the current radio frame; According to the DAI indication field in DCI3 and DCI4, the ACK/NACK feedback information corresponding to the third and fourth downlink transmissions are sorted, and the ACK/NACK sequence obtained after the sorting is transmitted in the determined time domain position.
  • the first indication field in the DCI 5 of the physical downlink control channel corresponding to the fifth downlink transmission transmitted in the subframe #6 is “1000”, and the sixth downlink transmission in the subframe #6 is transmitted.
  • the first indication field in the DCI6 of the corresponding physical downlink control channel is also “1000”, and the subframe number indicated by the first indication field is not less than the subframe number in which the DCI transmission is located, and is the first in the current radio frame. If the last symbol in the subframe indicated by the indication field satisfies the feedback delay, the ACK/NACK feedback information indicating the 5th and 6th downlink transmissions is determined to be the last symbol in the subframe #8 in the current radio frame.
  • the ACK/NACK feedback information corresponding to the 5th and 6th downlink transmissions are sorted, and the ACK/NACK sequence obtained after the sorting is transmitted in the determined time domain position.
  • the first indication field in the DCI7 of the physical downlink control channel corresponding to the seventh downlink transmission transmitted in the subframe #7 is “0000”, and the subframe number indicated by the first indication field is smaller than the DCI.
  • the subframe number in which the transmission is located therefore, determining that the ACK/NACK feedback information indicating the downlink transmission is in subframe #0 in the next radio frame (ie, the next radio frame of the radio frame in which the DCI transmission is located, the same below) Transfer on the last symbol.
  • the base station side determines the time domain location corresponding to the ACK/NACK feedback information of each downlink transmission according to the first to fourth similar analysis, and determines the ordering manner of the ACK/NACK feedback information, so as to be consistent with the operation of the terminal, thereby being able to Correctly parse the ACK/NACK feedback sent by the terminal.
  • an FDD carrier using a conventional CP is taken as an example.
  • each of the radio frames is numbered as the last symbol in the even-numbered uplink subframe.
  • Table 5 Correspondence between the first indication field in the DCI and the time domain location of the indicated ACK/NACK feedback information
  • First indicator field First indicator field value or time domain location index Time domain location of ACK/NACK feedback information 000 1 The last symbol in subframe #0 001 2 The last symbol in subframe #2 010 3 The last symbol in subframe #4 011 4 The last symbol in subframe #6 100 5 The last symbol in subframe #8 101 Reserved Reserved 110 Reserved Reserved 111 Reserved Reserved
  • FIG. 5 it is a schematic diagram of a transmission time domain location of ACK/NACK feedback information corresponding to downlink transmission of a terminal occupying different resources in different subframes according to DCI.
  • the specific instructions are as follows:
  • the DCI1 of the physical downlink control channel corresponding to the first downlink transmission transmitted in the subframe #5 the DCI2 of the physical downlink control channel corresponding to the second downlink transmission, and the physics corresponding to the third downlink transmission
  • the first indication field in the DCI4 of the downlink control channel and the DCI4 of the physical downlink control channel corresponding to the fourth downlink transmission is “011”, and the subframe number indicated by the first indication field is not less than the sub-carrier of the DCI transmission.
  • a frame number, and in the current radio frame, the last one of the subframes indicated by the first indication field satisfies a feedback delay, and then determines that the ACK/NACK indicating the first to fourth downlink transmissions are in the current radio frame.
  • the ACK/NACK feedback information corresponding to the first to fourth downlink transmissions is sorted according to the DAI indication field in DCI1, DCI2, DCI3, and DCI4, and the ACK/NACK sequence obtained after the sorting is transmitted in the determined time domain position.
  • the DCI5 of the physical downlink control channel corresponding to the fifth downlink transmission transmitted in the subframe #6, and the first indication domain in the DCI6 of the physical downlink control channel corresponding to the sixth downlink transmission are both " 100"
  • the subframe number indicated by the first indication field is not smaller than the subframe number in which the DCI transmission is located, and in the current radio frame, the last symbol in the subframe indicated by the first indication field satisfies the feedback delay
  • It is determined that the ACK/NACK indicating the two downlink transmissions is transmitted on the last symbol in subframe #8 in the current radio frame. Sorting the ACK/NACK feedback information corresponding to the 5th and 6th downlink transmissions according to the DAI indication field in DCI5 and DCI6,
  • the determined time domain location transmits the ACK/NACK sequence obtained after sorting.
  • the first indication field in the DCI7 of the physical downlink control channel corresponding to the seventh downlink transmission transmitted in the subframe #7 is “000”, and the subframe number indicated by the first indication field is smaller than the DCI transmission.
  • the subframe number in which it is located therefore, it is determined that the ACK/NACK feedback information indicating the downlink transmission is transmitted on the last symbol in subframe #0 in the next radio frame.
  • the base station side determines the time domain location corresponding to the ACK/NACK feedback information of each downlink transmission according to the first to third similar analysis, and determines the ordering manner of the ACK/NACK feedback information, so as to be consistent with the operation of the terminal, thereby being able to Correctly parse the ACK/NACK feedback sent by the terminal.
  • the first indication field in the first specific embodiment and the second specific embodiment may be changed to a time domain position indicating only ACK/NACK feedback information in half of the radio frames.
  • the first indication field in the DCI is further compressed to 2 bits, indicating the correspondence as shown in Table 6.
  • First indicator field First indicator field value or time domain location index Time domain location of ACK/NACK feedback information 00 1 Subframe #0 (first half) or 6 (last half) 01 2 Subframe #2 (first half) or 8 (last half) 10 3 The last symbol in subframe #4 11 Reserved Reserved
  • the DCI1 of the physical downlink control channel corresponding to the first downlink transmission transmitted in the subframe #5 the DCI2 of the physical downlink control channel corresponding to the second downlink transmission, and the physics corresponding to the third downlink transmission
  • the first indication field in the DCI3 of the downlink control channel and the DCI4 of the physical downlink control channel corresponding to the fourth downlink transmission is “00”, corresponding to the last symbol in the subframe #0 or #6, due to the subframe
  • the number of #6 is not less than the subframe number in which the DCI transmission is located, and the last symbol in the subframe indicated by the first indication field in the current radio frame satisfies the feedback delay, and then the ACK indicating the downlink transmission is determined.
  • the NACK is transmitted on the last symbol in the subframe #6 in the current radio frame; according to the DAI indication field in the DCI1, DCI2, DCI3, and DCI4, the ACK/NACK feedback information corresponding to the first to fourth downlink transmissions is sorted.
  • the ACK/NACK sequence obtained after the ordering is transmitted in the determined time domain location.
  • the DCI5 of the physical downlink control channel corresponding to the fifth downlink transmission transmitted in the subframe #6, and the first indication domain in the DCI6 of the physical downlink control channel corresponding to the sixth downlink transmission are both " 01", corresponding to the last symbol in subframe #2 or #8, since the number of subframe #8 is not less than the subframe number in which the DCI transmission is located, and the child indicated by the first indication field in the current radio frame If the last symbol in the frame satisfies the feedback delay, it is determined that the ACK/NACK indicating the two downlink transmissions are transmitted on the last symbol in subframe #8 in the current radio frame; according to the DAI indication field in DCI5 and DCI6 And sorting the ACK/NACK feedback information corresponding to the 5th and 6th downlink transmissions, and transmitting the ACK/NACK sequence obtained after the sorting in the determined time domain position.
  • the first indication field in the DCI7 of the physical downlink control channel corresponding to the seventh downlink transmission transmitted in the subframe #7 is "00", corresponding to the last symbol in the subframe #0 or #6 Since the numbers of the subframes #0 and #6 are both smaller than the subframe number in which the DCI transmission is located, it is determined that the ACK/NACK feedback information needs to be transmitted in the next radio frame, and the subframe #0 in the next radio frame is The last symbol is the most recent location that satisfies the feedback delay, and it is determined that the ACK/NACK indicating the downlink transmission is transmitted on the last symbol in subframe #0 in the next radio frame.
  • the base station side determines the time domain location corresponding to the ACK/NACK feedback information of each downlink transmission according to the fourth to sixth similar analysis, and determines the ordering manner of the ACK/NACK feedback information, so as to be consistent with the operation of the terminal, thereby being able to Correctly parse the ACK/NACK feedback sent by the terminal.
  • a TDD carrier using the TDD uplink and downlink configuration 1 of the conventional CP is taken as an example.
  • the TDD special subframe is configured as configuration 7 (ie, DwPTS contains 10 symbols, GP is 2 symbols, and UpPTS contains 2 symbols), assuming the last symbol in each uplink subframe (including UpPTS) in a radio frame.
  • It can be used to transmit ACK/NACK feedback information, and there is a time domain location of 6 ACK/NACK feedback information in one radio frame, that is, subframe #1/2/3/6/7/8, which is used to indicate ACK in DCI.
  • the first indicator field of the time domain location of the /NACK feedback information occupies a number of bits, wherein the correspondence between the first indicator field and the time domain location of the indicated ACK/NACK feedback information is as shown in Table 7.
  • Table 7 Correspondence between the first indication field in the DCI and the time domain location of the indicated ACK/NACK feedback information
  • First indication domain status First indicator field value or time domain location index
  • Time domain location of ACK/NACK feedback information 000 1
  • the last symbol in subframe #1 001 2 The last symbol in subframe #2 010 3
  • FIG. 7 is a schematic diagram of a transmission time domain location of ACK/NACK feedback information corresponding to downlink transmission of a terminal occupying different resources in different subframes according to DCI.
  • the specific instructions are as follows:
  • the first indication field in the DCI1 of the physical downlink control channel corresponding to the first downlink transmission transmitted in the subframe #9 is "001", and the subframe number indicated by the first indication field is smaller than the DCI transmission.
  • the subframe number in which it is located determines that the ACK/NACK indicating the downlink transmission is transmitted on the last symbol in subframe #2 in the next radio frame.
  • the first indication field in the DCI2 of the physical downlink control channel corresponding to the second downlink transmission transmitted in the subframe #0 is also "001", and the subframe number indicated by the first indication field is not less than the DCI transmission.
  • the last symbol in the transmission is transmitted in the same location as the ACK/NACK of the first downlink transmission.
  • the DAI indication field in DCI1 and DCI2 the ACK/NACK feedback information corresponding to the first and second downlink transmissions are sorted, and the ACK/NACK sequence obtained after the sorting is transmitted in the determined time domain position.
  • the first indication field in the first indication field is “000”, and the subframe number indicated by the first indication field is not smaller than the subframe number in which the DCI transmission is located, and is in the subframe indicated by the first indication field in the current radio frame.
  • the last symbol satisfies the feedback delay, and then determines that the ACK/NACK indicating the two downlink transmissions are transmitted on the last symbol in subframe #1 in the current radio frame; according to the DAI indication field in DCI3 and DCI4,
  • the ACK/NACK feedback information corresponding to the 3rd and 4th downlink transmissions is sorted, and the ACK/NACK sequence obtained after the sorting is transmitted in the determined time domain position.
  • the base station side determines the time domain location corresponding to the ACK/NACK feedback information of each downlink transmission according to the first to third similar analysis, and determines the ordering manner of the ACK/NACK feedback information, so as to be consistent with the operation of the terminal, thereby being able to Correctly parse the ACK/NACK feedback sent by the terminal.
  • Table 8 Correspondence between the first indication field in the DCI and the time domain location of the indicated ACK/NACK feedback information
  • First indication domain status First indicator field value or time domain location index
  • Time domain location of ACK/NACK feedback information 00 1
  • the subframe number indicated by the first indication field is not smaller than the subframe number in which the DCI transmission is located, and the last symbol in the subframe indicated by the first indication field in the current radio frame satisfies a feedback delay, and then determines The ACK/NACK indicating that the two downlink transmissions are transmitted on the last symbol in subframe #2 in the current radio frame, that is, is transmitted at the same location as the ACK/NACK of the first downlink transmission.
  • the ACK/NACK information corresponding to the first, second, and third downlink transmissions is sorted according to the DAI indication field in DCI1, DCI2, and DCI3, and the ACK/NACK sequence obtained after the sorting is transmitted in the determined time domain position.
  • Subframe number, and the last one of the subframes indicated by the first indication field in the current radio frame satisfies the feedback delay, and then determines that the ACK/NACK indicating the downlink transmission is also in subframe #3
  • the last symbol in the transmission that is, the ACK/NACK transmitted in the same downlink position is transmitted in the same position; according to the DAI indication field in DCI4 and DCI5, the ACK/NACK corresponding to the 4th and 5th downlink transmissions
  • the feedback information is sorted, and the ACK/NACK sequence obtained after the sorting is transmitted at the determined position.
  • the first indication field in the third embodiment and the fourth embodiment may be changed to a time domain position indicating only ACK/NACK feedback information in half of the radio frames.
  • the first indication field in the DCI is further compressed to be 1 bit, indicating a correspondence relationship as shown in Table 9.
  • Table 9 Correspondence between the first indication field in the DCI and the time domain location of the indicated ACK/NACK feedback information
  • the first indication field in the DCI1 of the physical downlink control channel corresponding to the first downlink transmission transmitted in the subframe #9 is “0”, corresponding to the last symbol in the subframe #2 or #7. Since the numbers of the subframes #2 and #7 are both smaller than the subframe number in which the DCI transmission is located, it is determined that the ACK/NACK of the downlink transmission is transmitted in the next radio frame, since the last subframe #2 in the next radio frame If a symbol is the most recent time domain position that satisfies the feedback delay, it is determined that the ACK/NACK indicating the downlink transmission is transmitted on the last symbol in subframe #2 in the next radio frame.
  • the first indication field in the DCI2 of the physical downlink control channel corresponding to the second downlink transmission transmitted in the subframe #0 and the DCI3 of the physical downlink control channel corresponding to the third downlink transmission is also "0".
  • the subframe number indicated by the first indication field is not less than the subframe number in which the DCI transmission is located, and is indicated by the first indication field in the current radio frame.
  • the last symbol in subframe #2 is the most recent time domain position satisfying the feedback delay, and then it is determined that the ACK/NACK indicating the two downlink transmissions is transmitted on the last symbol in subframe #2 in the current radio frame. That is, it is transmitted at the same location as the ACK/NACK of the first downlink transmission.
  • DCI1 DCI2 And the DAI indicator field in the DCI3, sorting the ACK/NACK information corresponding to the first, second, and third downlink transmissions, and transmitting the ACK/NACK sequence obtained after the sorting in the determined time domain position.
  • the first indication field in the DCI4 of the physical downlink control channel corresponding to the fourth downlink transmission transmitted in the subframe #0 is "1", corresponding to the last symbol in the subframe #3 or #8
  • the subframe number indicated by the first indication field is not smaller than the subframe number in which the DCI transmission is located, and the last symbol in the subframe #3 indicated by the first indication field in the current radio frame is the latest satisfaction feedback.
  • the time domain location of the delay determines that the ACK/NACK indicating the downlink transmission is transmitted on the last symbol in subframe #3.
  • the base station side determines the time domain location corresponding to the ACK/NACK feedback information of each downlink transmission according to the third to fourth similar analysis, and determines the ordering manner of the ACK/NACK feedback information, so as to be consistent with the operation of the terminal, thereby being able to Correctly parse the ACK/NACK feedback sent by the terminal.
  • the ACK/NACK feedback information is transmitted by taking only one symbol length as an example, and it is not excluded that the ACK/NACK transmission may occupy more than one symbol transmission, for example, 2, 3, 4, and 5 7 symbols or 1 ms (12 or 14 symbols), for example, occupying one or more minislot transmissions, or occupying one or more TTI transmissions, or occupying one or more time slots for transmission, or occupying one or more Sub-frame transmission, in this case, the time domain location of the ACK/NACK feedback information can be obtained in a similar manner.
  • mapping table of the first indication field and the ACK/NACK time domain location only the subframe and the symbol position are taken as an example, and the combination manner of other subframe/symbol/TTI/slot/microslot number is not excluded to indicate ACK/ NACK time domain resource.
  • only one carrier is taken as an example.
  • each carrier can be determined in a similar manner, except that for the SCC, the ACK/NACK time domain resource indicated by the first indication field of the DCI can be On the carrier transmitting ACK/NACK (for example, PCC or an SCC that can carry ACK/NACK), when ACK/NACK of downlink transmission on multiple carriers needs to be transmitted on the same time domain resource, ACK of multiple carriers /NACK is cascaded and transmitted simultaneously on the same channel.
  • ACK/NACK for example, PCC or an SCC that can carry ACK/NACK
  • the time domain location of the ACK/NACK feedback information transmission is notified by the physical downlink control channel, so that the eNB can flexibly control the ACK/NACK load in different uplink transmission resources while reducing the feedback delay as much as possible. Balance on the system to improve system performance.
  • the terminal mainly includes:
  • the receiving module 1001 is configured to receive a first physical downlink control channel, where the downlink control information DCI of the first physical downlink control channel carries a first indication domain, where the first indication domain is used to determine ACK/NACK feedback information. Domain location
  • the feedback module 1002 is configured to determine, according to the first indication domain, a time domain location of the first physical downlink control channel or the ACK/NACK feedback information of the first physical downlink shared channel corresponding to the first physical downlink control channel. And transmitting the ACK/NACK feedback information at a time domain location of the ACK/NACK feedback information.
  • the first indication field is used to indicate a location of a radio frame or a field or a subframe or a time slot or a TTI or a minislot or symbol in which the time domain location of the ACK/NACK feedback information is transmitted.
  • the feedback module is further configured to:
  • an ACK indicated by the first indication field according to a subframe number and/or a TTI number and/or a symbol number and/or a slot number and/or a microslot number in which the first physical downlink control channel is transmitted.
  • Determining the indication of the first indication field by the subframe number and/or the TTI number and/or the symbol number and/or the slot number and/or the size of the minislot number or the sequence of the time slot location of the /NACK feedback information The location of the radio frame or field or subframe or TTI or slot or minislot or symbol in which the time domain location of the ACK/NACK feedback information is located.
  • the time domain location of the ACK/NACK feedback information is one of the following manners or a combination thereof:
  • the field in which the time domain location of the ACK/NACK feedback information is located is: the first physical downlink control channel or a field in which the first physical downlink shared channel corresponding to the first physical downlink control channel is transmitted, Or the first physical downlink control channel or the first physical downlink shared channel corresponding to the first physical downlink control channel The n2th field after the field in which the transmission is located, where the n2 is a positive integer;
  • the subframe in which the time domain location of the ACK/NACK feedback information is located is: the first physical downlink control channel or the subframe in which the first physical downlink shared channel corresponding to the first physical downlink control channel is transmitted, Or the nth subframe after the first physical downlink control channel or the subframe corresponding to the first physical downlink shared channel corresponding to the first physical downlink control channel, where the n3 is a positive integer;
  • the micro time slot in which the time domain location of the ACK/NACK feedback information is located is: the first physical downlink control channel or the micro time when the first physical downlink shared channel corresponding to the first physical downlink control channel is transmitted a slot, or an nth microslot after the first physical downlink control channel or a microslot in which the first physical downlink shared channel corresponding to the first physical downlink control channel is located, where the n5 Is a positive integer;
  • the TTI where the time domain location of the ACK/NACK feedback information is located is: the TTI of the first physical downlink control channel or the first physical downlink shared channel corresponding to the first physical downlink control channel, or The nth TTI after the TTI where the first physical downlink control channel or the first physical downlink shared channel corresponding to the first physical downlink control channel is located, where the n6 is a positive integer;
  • the first indication field indicates a location of a first TTI required to be transmitted by the ACK/NACK feedback information, and the ACK/NACK feedback information occupies consecutive A uplink TTIs starting from the first TTI; or,
  • the first indication field indicates a location of a first time slot required to be transmitted by the ACK/NACK feedback information, and the ACK/NACK feedback information occupies consecutive A times starting from the first time slot Gap; or,
  • the first indication field indicates a location of a first subframe that is required to be used for transmission of the ACK/NACK feedback information, and the ACK/NACK feedback information occupies consecutive A subframes starting from the first subframe .
  • the feedback module is specifically configured to:
  • time domain location is any one of the following:
  • Subframe number and/or symbol number and/or TTI number and/or time slot number and/or minislot number are assigned to Subframe number and/or symbol number and/or TTI number and/or time slot number and/or minislot number.
  • the sending module 1101 is configured to send a first physical downlink control channel to the terminal, where the downlink control information DCI of the first physical downlink control channel carries a first indication field, where the first indication field is used to determine ACK/NACK feedback information.
  • Time domain location the downlink control information DCI of the first physical downlink control channel carries a first indication field, where the first indication field is used to determine ACK/NACK feedback information.
  • the first indication field is specifically used to indicate K time domain locations that can be used for transmitting ACK/NACK feedback information, where K is a positive integer.
  • the first indication field is used to indicate a location of a radio frame or a field or a subframe or a time slot or a TTI or a minislot or symbol in which the time domain location of the ACK/NACK feedback information is transmitted.
  • a processing module is further included for:
  • the radio frame in which the time domain location of the ACK/NACK feedback information is located is: the first physical downlink control channel or the radio frame in which the first physical downlink shared channel corresponding to the first physical downlink control channel is transmitted, Or the nth radio frame after the radio frame in which the first physical downlink control channel or the first physical downlink shared channel corresponding to the first physical downlink control channel is transmitted, where the n1 is a positive integer;
  • the time slot in which the time domain location of the ACK/NACK feedback information is located is: the first physical downlink control channel or a time slot in which the first physical downlink shared channel corresponding to the first physical downlink control channel is transmitted, Or the nth time slot after the time slot of the first physical downlink control channel or the first physical downlink shared channel corresponding to the first physical downlink control channel, where the n4 is a positive integer;
  • the micro time slot in which the time domain location of the ACK/NACK feedback information is located is: the first physical downlink control channel or the micro time when the first physical downlink shared channel corresponding to the first physical downlink control channel is transmitted a slot, or an nth microslot after the first physical downlink control channel or a microslot in which the first physical downlink shared channel corresponding to the first physical downlink control channel is located, where the n5 Is a positive integer;
  • the TTI where the time domain location of the ACK/NACK feedback information is located is: the TTI of the first physical downlink control channel or the first physical downlink shared channel corresponding to the first physical downlink control channel, or The nth TTI after the TTI where the first physical downlink control channel or the first physical downlink shared channel corresponding to the first physical downlink control channel is located, where the n6 is a positive integer;
  • the symbol of the time domain location of the ACK/NACK feedback information is: the symbol of the first physical downlink control channel or the first physical downlink shared channel corresponding to the first physical downlink control channel, or An nth symbol following a symbol in which the first physical downlink control channel or the first physical downlink shared channel corresponding to the first physical downlink control channel is transmitted, where the n7 is a positive integer.
  • the first indication field indicates a location of a first TTI required to be transmitted by the ACK/NACK feedback information, and the ACK/NACK feedback information occupies consecutive A uplink TTIs starting from the first TTI; or,
  • the first indication field indicates a location of a first time slot required to be transmitted by the ACK/NACK feedback information, and the ACK/NACK feedback information occupies consecutive A times starting from the first time slot Gap; or,
  • the first indication field indicates a location of a first minislot required to be transmitted by the ACK/NACK feedback information, and the ACK/NACK feedback information occupies a continuous A starting from the first minislot Micro-slots; or,
  • the first indication field indicates a location of a first subframe that is required to be used for transmission of the ACK/NACK feedback information, and the ACK/NACK feedback information occupies consecutive A subframes starting from the first subframe .
  • a processing module is further included for:
  • the base station determines that the time domain locations of the ACK/NACK feedback information indicated by the first indication domain of the multiple physical downlink control channels of the terminal are the same, according to the multiple of the first physical downlink control a downlink allocation index DAI indication field in the DCI in the channel, and determining, for each of the plurality of the first physical downlink control channels, a first physical downlink control channel or a first corresponding to each first physical downlink control channel a cascading sequence of ACK/NACK feedback information of a physical downlink shared channel, and parsing ACK/NACK feedback information received at the time domain location according to the determined cascading order.
  • time domain location is any one of the following:
  • Subframe number and/or symbol number and/or TTI number and/or time slot number and/or minislot number are assigned to Subframe number and/or symbol number and/or TTI number and/or time slot number and/or minislot number.
  • the first physical downlink control channel is received by the transceiver 1203, where the downlink control information DCI of the first physical downlink control channel carries a first indication domain, where the first indication domain is used to determine a time domain location of the ACK/NACK feedback information. ;
  • the first indication field includes information of P bits, where among them, Indicates rounding up.
  • the first indication field is used to indicate a location of a radio frame or a field or a subframe or a time slot or a TTI or a minislot or symbol in which the time domain location of the ACK/NACK feedback information is transmitted.
  • an ACK indicated by the first indication field according to a subframe number and/or a TTI number and/or a symbol number and/or a slot number and/or a microslot number in which the first physical downlink control channel is transmitted.
  • Determining the indication of the first indication field by the subframe number and/or the TTI number and/or the symbol number and/or the slot number and/or the size of the minislot number or the sequence of the time slot location of the /NACK feedback information The location of the radio frame or field or subframe or TTI or slot or minislot or symbol in which the time domain location of the ACK/NACK feedback information is located.
  • the time domain location of the ACK/NACK feedback information is one of the following manners or a combination thereof:
  • the radio frame in which the time domain location of the ACK/NACK feedback information is located is: the first physical downlink control channel or the radio frame in which the first physical downlink shared channel corresponding to the first physical downlink control channel is transmitted, Or the nth radio frame after the radio frame in which the first physical downlink control channel or the first physical downlink shared channel corresponding to the first physical downlink control channel is transmitted, where the n1 is a positive integer;
  • the field in which the time domain location of the ACK/NACK feedback information is located is: the first physical downlink control channel or a field in which the first physical downlink shared channel corresponding to the first physical downlink control channel is transmitted, Or the nth second field after the first physical downlink control channel or the field corresponding to the first physical downlink shared channel corresponding to the first physical downlink control channel, where the n2 is a positive integer;
  • the subframe in which the time domain location of the ACK/NACK feedback information is located is: the first physical downlink control channel or the subframe in which the first physical downlink shared channel corresponding to the first physical downlink control channel is transmitted, Or the nth subframe after the first physical downlink control channel or the subframe corresponding to the first physical downlink shared channel corresponding to the first physical downlink control channel, where the n3 is a positive integer;
  • the micro time slot in which the time domain location of the ACK/NACK feedback information is located is: the first physical downlink control channel or the micro time when the first physical downlink shared channel corresponding to the first physical downlink control channel is transmitted Gap, or The first physical downlink control channel or the n5th minislot after the minislot in which the first physical downlink shared channel corresponding to the first physical downlink control channel is located, where the n5 is a positive integer ;
  • the symbol of the time domain location of the ACK/NACK feedback information is: the symbol of the first physical downlink control channel or the first physical downlink shared channel corresponding to the first physical downlink control channel, or An nth symbol following a symbol in which the first physical downlink control channel or the first physical downlink shared channel corresponding to the first physical downlink control channel is transmitted, where the n7 is a positive integer.
  • the first indication field indicates a location of a first symbol required to be transmitted by the ACK/NACK feedback information, and the ACK/NACK feedback information occupies a continuous A starting from the first symbol.
  • the A is a positive integer; or,
  • the first indication field indicates a location of a first time slot required to be transmitted by the ACK/NACK feedback information, and the ACK/NACK feedback information occupies consecutive A times starting from the first time slot Gap; or,
  • the first indication field indicates a location of a first minislot required to be transmitted by the ACK/NACK feedback information, and the ACK/NACK feedback information occupies a continuous A starting from the first minislot Micro-slots; or,
  • the processor is specifically configured to:
  • the time domain location of the ACK/NACK feedback information determined by the terminal according to the first indication field of the multiple physical downlink control channels is the same, according to the DCI in the plurality of the first physical downlink control channels a downlink allocation index DAI indication field, where each of the plurality of the first physical downlink control channels or the first physical downlink corresponding to each first physical downlink control channel is shared After the ACK/NACK feedback information of the channel is cascaded, the ACK/NACK feedback information is transmitted in the time domain position.
  • Subframe number and/or symbol number and/or TTI number and/or time slot number and/or minislot number are assigned to Subframe number and/or symbol number and/or TTI number and/or time slot number and/or minislot number.
  • the processor, the memory and the transceiver are connected by a bus, and the bus architecture may include any number of interconnected buses and bridges, and various circuit links of the memory represented by one or more processors and memories represented by the processor. Together.
  • 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.
  • Bus The interface provides an interface.
  • the transceiver can be a plurality of components, including a transmitter and a transceiver, providing means for communicating with various other devices on a transmission medium.
  • the processor is responsible for managing the bus architecture and the usual processing, and the memory can store the data that the processor uses when performing operations.
  • the first physical downlink control channel is sent to the terminal by the transceiver 1303, where the downlink control information DCI of the first physical downlink control channel carries a first indication field, where the first indication field is used to determine the ACK/NACK feedback information.
  • Domain location the downlink control information DCI of the first physical downlink control channel carries a first indication field, where the first indication field is used to determine the ACK/NACK feedback information.
  • the first indication field is specifically used to indicate K time domain locations that can be used for transmitting ACK/NACK feedback information, where K is a positive integer.
  • the first indication field includes information of P bits, where among them, Indicates rounding up.
  • the processor is further configured to:
  • the first TTI length is a TTI length of the first physical downlink control channel and/or a first physical downlink shared channel corresponding to the first physical downlink control channel
  • the second TTI length A pre-configured or agreed TTI length for determining the time domain location of the ACK/NACK feedback information.
  • the processor is further configured to:
  • an ACK indicated by the first indication field according to a subframe number and/or a TTI number and/or a symbol number and/or a slot number and/or a microslot number in which the first physical downlink control channel is transmitted.
  • Determining the indication of the first indication field by the subframe number and/or the TTI number and/or the symbol number and/or the slot number and/or the size of the minislot number or the sequence of the time slot location of the /NACK feedback information The location of the radio frame or field or subframe or TTI or slot or minislot or symbol in which the time domain location of the ACK/NACK feedback information is located.
  • the time domain location of the ACK/NACK feedback information is one of the following manners or a combination thereof:
  • the radio frame in which the time domain location of the ACK/NACK feedback information is located is: the first physical downlink control channel or the radio frame in which the first physical downlink shared channel corresponding to the first physical downlink control channel is transmitted, Or the nth radio frame after the radio frame in which the first physical downlink control channel or the first physical downlink shared channel corresponding to the first physical downlink control channel is transmitted, where the n1 is a positive integer;
  • the subframe in which the time domain location of the ACK/NACK feedback information is located is: the first physical downlink control channel or the subframe in which the first physical downlink shared channel corresponding to the first physical downlink control channel is transmitted, Or the nth subframe after the first physical downlink control channel or the subframe corresponding to the first physical downlink shared channel corresponding to the first physical downlink control channel, where the n3 is a positive integer;
  • the micro time slot in which the time domain location of the ACK/NACK feedback information is located is: the first physical downlink control channel or the micro time when the first physical downlink shared channel corresponding to the first physical downlink control channel is transmitted a slot, or an nth microslot after the first physical downlink control channel or a microslot in which the first physical downlink shared channel corresponding to the first physical downlink control channel is located, where the n5 Is a positive integer;
  • the TTI where the time domain location of the ACK/NACK feedback information is located is: the TTI of the first physical downlink control channel or the first physical downlink shared channel corresponding to the first physical downlink control channel, or The nth TTI after the TTI where the first physical downlink control channel or the first physical downlink shared channel corresponding to the first physical downlink control channel is located, where the n6 is a positive integer;
  • the first indication field indicates a location of a first symbol required to be transmitted by the ACK/NACK feedback information, and the ACK/NACK feedback information occupies a continuous A starting from the first symbol.
  • the A is a positive integer; or,
  • the first indication field indicates a location of a first TTI required to be transmitted by the ACK/NACK feedback information,
  • the ACK/NACK feedback information occupies consecutive A uplink TTIs starting from the first TTI;
  • the first indication field indicates a location of a first time slot required to be transmitted by the ACK/NACK feedback information, and the ACK/NACK feedback information occupies consecutive A times starting from the first time slot Gap; or,
  • the first indication field indicates a location of a first minislot required to be transmitted by the ACK/NACK feedback information, and the ACK/NACK feedback information occupies a continuous A starting from the first minislot Micro-slots; or,
  • the first indication field indicates a location of a first subframe that is required to be used for transmission of the ACK/NACK feedback information, and the ACK/NACK feedback information occupies consecutive A subframes starting from the first subframe .
  • the processor is further configured to:
  • time domain location is any one of the following:
  • Subframe number and/or symbol number and/or TTI number and/or time slot number and/or minislot number are assigned to Subframe number and/or symbol number and/or TTI number and/or time slot number and/or minislot number.
  • the processor, the memory and the transceiver are connected by a bus, and the bus architecture may include any number of interconnected buses and bridges, and various circuit links of the memory represented by one or more processors and memories represented by the processor. Together.
  • 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 can be a plurality of components, including a transmitter and a transceiver, providing means for communicating with various other devices on a transmission medium.
  • the processor is responsible for managing the bus architecture and the usual processing, and the memory can store the data that the processor uses when performing operations.
  • embodiments of the present application can be provided as a method, system, or computer program product.
  • the present application can take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment in combination of software and hardware.
  • the application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) including computer usable program code.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

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Abstract

本申请公开了一种ACK/NACK反馈方法及相关设备,用以解决由于不同发送时间间隔长度的数据所需要的传输和处理时延不同,导致最早可以进行ACK/NACK反馈的时间位置不同,无法保证下行传输的ACK/NACK的正常反馈的问题。方法为:终端接收第一物理下行控制信道,所述第一物理下行控制信道的下行控制信息中携带第一指示域,所述第一指示域用于确定ACK/NACK反馈信息的时域位置;所述终端根据所述第一指示域确定所述第一物理下行控制信道或者与所述第一物理下行控制信道对应的第一物理下行共享信道的ACK/NACK反馈信息的时域位置,并在所述ACK/NACK反馈信息的时域位置,传输所述ACK/NACK反馈信息。

Description

一种ACK/NACK反馈方法及相关设备
本申请要求在2016年3月25日提交中国专利局、申请号为201610180321.3、发明名称为“一种ACK/NACK反馈方法及相关设备”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信技术领域,尤其涉及一种ACK/NACK反馈方法及相关设备。
背景技术
一、现有LTE帧结构(LTE Rel-8/9/10/11/12/13)
现有的长期演进(Long Term Evolution,LTE)频分双工(Frequency Division Duplex,FDD)系统使用帧结构类型1(Frame Structure Type 1,简称FS1)。在FDD系统中,上行和下行传输使用不同的载波频率,上行和下行传输使用相同的帧结构。如图1所示为FS1的结构示意图,在每个载波上,一个10ms长度的无线帧包含有10个1ms子帧,每个子帧分为两个0.5ms长度的时隙,上行和下行数据发送的发送时间间隔(Transmission Time Interval,TTI)为1ms。
现有的LTE时分双工(Time Division Duplex,TDD)系统使用帧结构类型2(Frame Structure Type 2,简称FS2)。在TDD系统中,上行和下行传输使用相同频率上的不同子帧或不同时隙。如图2所示为FS2的结构示意图。FS2中每个10ms长度的无线帧由两个5ms长度的半帧构成,每个半帧包含5个1ms长度的子帧。FS2中的子帧分为三类,分别为:下行子帧、上行子帧和特殊子帧,每个特殊子帧由下行传输时隙(Downlink Pilot Time Slot,DwPTS)、保护间隔(Guard Period,GP)和上行传输时隙(Uplink Pilot Time Slot,UpPTS)三部分构成。其中,DwPTS可用于传输下行导频、下行业务数据和下行控制信令;GP不传输任何信号;UpPTS仅可用于传输随机接入信号和探测参考信号(Sounding Reference Symbol,SRS),不能用于传输上行业务或上行控制信息。每个半帧中包含至少1个下行子帧和至少1个上行子帧,以及最多1个特殊子帧。FS2中支持的7种上下行子帧配置方式如表1所示。
表1:上下行配置
Figure PCTCN2017075354-appb-000001
Figure PCTCN2017075354-appb-000002
二、现有LTE FDD/TDD的正确应答指令/错误应答指令(ACKnowledge/Negative ACKnowledge,ACK/NACK)反馈时序
在LTE Rel-8系统中,对于FDD系统,由于每个子帧中都有上行资源,因此,编号为n的下行子帧的ACK/NACK反馈信息在编号为n+4的上行子帧中传输。对于TDD系统,由于上下行传输共享频域资源,需要进行如表1所示的上下行子帧划分,因此,不同下行子帧的ACK/NACK反馈信息可能需要在同一个上行子帧中传输,如表2所示,根据编号为n的上行子帧所对应的集合K:{k0,k1,…kM-1}中的每个元素,可以确定需要在该上行子帧中进行ACK/NACK反馈的下行子帧(包括编号为n-k的下行子帧,包括特殊子帧在内),则同一个上行子帧需要反馈M个下行子帧的ACK/NACK反馈信息,M为集合K中的元素个数,不同的上行子帧和不同的TDD上下行配置取值不一定相同。
表2 Downlink association set index K:{k0,k1,…kM-1}for TDD
Figure PCTCN2017075354-appb-000003
需要说明的是,表2中的编号是以无线帧为单位的,如子帧编号n-k小于零,则表明该子帧属于前一个无线帧。
当进行载波聚合时,一个终端可以同时工作在多个载波上,但只能在部分载波的物理上行控制信道(Physical Uplink Control Channel,PUCCH)中传输ACK/NACK反馈信息,例如主成员载波(Primary Component Carrier,PCC)。因此,终端在一个上行子帧中还需要反馈多个载波对应的ACK/NACK反馈信息。当终端聚合的载波均为FDD载波时,每个载波上的ACK/NACK反馈时序都是按照n+4进行的。当终端聚合的载波均为TDD载波时,如果所有TDD载波的TDD上下行配置相同,则每个载波上的ACK/NACK反馈时序都是按照该TDD上下行配置对应的表2所示的反馈时序进行的;如果所聚合的TDD载波的TDD上下行配置不同,则需要按照特定规则,对辅成员载波(Secondary Component Carrier, SCC)定义参考TDD上下行配置,根据参考TDD上下行配置所对应的表2中的反馈时序进行ACK/NACK反馈。当终端聚合的载波既包含FDD载波又包含TDD载波时,如果FDD载波作为PCC,则每个载波上的ACK/NACK反馈时序都是按照n+4进行的,如果TDD载波作为PCC,则需要按照特定规则,对SCC定义参考TDD上下行配置,根据参考TDD上下行配置所对应的表2中的反馈时序进行ACK/NACK反馈。
在后续版本(Release)中,还进一步支持将聚合载波分为多个载波组,在每个载波组中的一个载波上通过PUCCH进行ACK/NACK反馈,此时,每个载波组中根据其聚合载波所对应的上述情况中的一种,确定该载波组中的SCC的反馈时序。
在LTE系统中,现有的信道传输都是以TTI=1ms来定义的,当采用非1ms的TTI长度时,下行传输的TTI长度可以发生变化。不同TTI长度的数据所需要的传输和处理时延不同,因此,最早可以进行ACK/NACK反馈的时间位置不同,针对这种情况,现有机制中按照固定的ACK/NACK反馈时序进行ACK/NACK反馈的方法不再适用,需要新的机制确定一个下行传输的ACK/NACK的传输时间位置,从而保证下行传输的ACK/NACK的正常反馈。
发明内容
本申请实施例提供一种ACK/NACK反馈方法及相关设备,用以解决由于不同TTI长度的数据所需要的传输和处理时延不同,导致最早可以进行ACK/NACK反馈的时间位置不同,无法保证下行传输的ACK/NACK的正常反馈的问题。
本申请实施例提供的具体技术方案如下:
第一方面,本申请实施例提供了一种ACK/NACK反馈方法,包括:
终端接收第一物理下行控制信道,所述第一物理下行控制信道的下行控制信息DCI中携带第一指示域,所述第一指示域用于确定ACK/NACK反馈信息的时域位置;
所述终端根据所述第一指示域确定所述第一物理下行控制信道或者与所述第一物理下行控制信道对应的第一物理下行共享信道的ACK/NACK反馈信息的时域位置,并在所述ACK/NACK反馈信息的时域位置,传输所述ACK/NACK反馈信息。
可能的实施方式中,所述第一指示域具体用于指示K个能够用于传输ACK/NACK反馈信息的时域位置,所述K为正整数。
可能的实施方式中,所述第一指示域包含P个比特的信息,所述
Figure PCTCN2017075354-appb-000004
其中,
Figure PCTCN2017075354-appb-000005
表示向上取整。
可能的实施方式中,所述第一指示域用于指示传输所述ACK/NACK反馈信息的时域位置所在的无线帧或半帧或子帧或时隙或发送时间间隔TTI或微时隙或符号的位置。
可能的实施方式中,所述方法还包括:
所述终端根据第一TTI长度和/或第二TTI长度确定所述第一指示域所指示的ACK/NACK反馈信息的时域位置所在的无线帧或半帧或子帧或时隙或微时隙或符号的位置,其中,所述第一TTI长度为所述第一物理下行控制信道和/或与所述第一物理下行控制信道对应的第一物理下行共享信道的TTI长度,所述第二TTI长度为预先配置或约定的用于确定ACK/NACK反馈信息的时域位置的TTI长度。
可能的实施方式中,所述方法还包括:
所述终端根据所述第一物理下行控制信道传输所在的子帧编号和/或TTI编号和/或符号编号和/或时隙编号和/或微时隙编号,与所述第一指示域所指示的ACK/NACK反馈信息的时域位置的子帧编号和/或TTI编号和/或符号编号和/或时隙编号和/或微时隙编号的大小或前后顺序,确定所述第一指示域所指示的ACK/NACK反馈信息的时域位置所在的无线帧或半帧或子帧或TTI或时隙或微时隙或符号的位置。
可能的实施方式中,所述ACK/NACK反馈信息的时域位置为以下方式之一或者其组合:
所述ACK/NACK反馈信息的时域位置所在的无线帧为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的无线帧,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的无线帧之后的第n1个无线帧,其中,所述n1为正整数;
所述ACK/NACK反馈信息的时域位置所在的半帧为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的半帧,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的半帧之后的第n2个半帧,其中,所述n2为正整数;
所述ACK/NACK反馈信息的时域位置所在的子帧为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的子帧,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的子帧之后的第n3个子帧,其中,所述n3为正整数;
所述ACK/NACK反馈信息的时域位置所在的时隙为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的时隙,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的时隙之后的第n4个时隙,其中,所述n4为正整数;
所述ACK/NACK反馈信息的时域位置所在的微时隙为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的微时隙,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的微时隙之后的第n5个微时隙,其中,所述n5为正整数;
所述ACK/NACK反馈信息的时域位置所在的TTI为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的TTI,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的TTI之后的第n6个TTI,其中,所述n6为正整数;
所述ACK/NACK反馈信息的时域位置所在的符号为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的符号,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的符号之后的第n7个符号,其中,所述n7为正整数。
可能的实施方式中,所述第一指示域指示所述ACK/NACK反馈信息传输所需占用的第一个符号的位置,所述ACK/NACK反馈信息占用以所述第一个符号为起点的连续A个上行符号,所述A为正整数;或者,
所述第一指示域指示所述ACK/NACK反馈信息传输所需占用的第一个TTI的位置,所述ACK/NACK反馈信息占用以所述第一个TTI为起点的连续A个上行TTI;或者,
所述第一指示域指示所述ACK/NACK反馈信息传输所需占用的第一个时隙的位置,所述ACK/NACK反馈信息占用以所述第一个时隙为起点的连续A个时隙;或者,
所述第一指示域指示所述ACK/NACK反馈信息传输所需占用的第一个微时隙的位置,所述ACK/NACK反馈信息占用以所述第一个微时隙为起点的连续A个微时隙;或者,
所述第一指示域指示所述ACK/NACK反馈信息传输所需占用的第一个子帧的位置,所述ACK/NACK反馈信息占用以所述第一个子帧为起点的连续A个子帧。
可能的实施方式中,若所述终端根据多个所述第一物理下行控制信道的第一指示域分别确定的ACK/NACK反馈信息的时域位置相同,则所述终端在所述ACK/NACK反馈信息的时域位置,传输所述ACK/NACK反馈信息,包括:
所述终端按照所述多个所述第一物理下行控制信道中的DCI中的下行分配索引DAI指示域,将所述多个所述第一物理下行控制信道中的每个第一物理下行控制信道或与每个第一物理下行控制信道所对应的第一物理下行共享信道的ACK/NACK反馈信息级联后,在所述ACK/NACK反馈信息的时域位置传输。
可能的实施方式中,所述时域位置为以下任意一种:
子帧编号和/或符号编号和/或TTI编号和/或时隙编号和/或微时隙编号。
第二方面,本申请实施例提供了一种ACK/NACK反馈方法,包括:
基站向终端发送第一物理下行控制信道,所述第一物理下行控制信道的下行控制信息DCI中携带第一指示域,所述第一指示域用于确定ACK/NACK反馈信息的时域位置;
所述基站在根据所述第一指示域确定的ACK/NACK反馈信息的时域位置,接收所述终端反馈的所述第一物理下行控制信道或者与所述第一物理下行控制信道对应的第一物 理下行共享信道的ACK/NACK反馈信息。
可能的实施方式中,所述第一指示域具体用于指示K个能够用于传输ACK/NACK反馈信息的时域位置,所述K为正整数。
可能的实施方式中,所述第一指示域包含P个比特的信息,所述
Figure PCTCN2017075354-appb-000006
其中,
Figure PCTCN2017075354-appb-000007
表示向上取整。
可能的实施方式中,所述第一指示域用于指示传输所述ACK/NACK反馈信息的时域位置所在的无线帧或半帧或子帧或时隙或发送时间间隔TTI或微时隙或符号的位置。
可能的实施方式中,所述方法还包括:
所述基站根据第一TTI长度和/或第二TTI长度确定所述第一指示域所指示的ACK/NACK反馈信息的时域位置所在的无线帧或半帧或子帧或时隙或微时隙或符号的位置,其中,所述第一TTI长度为所述第一物理下行控制信道和/或与所述第一物理下行控制信道对应的第一物理下行共享信道的TTI长度,所述第二TTI长度为预先配置或约定的用于确定ACK/NACK反馈信息的时域位置的TTI长度。
可能的实施方式中,所述方法还包括:
所述基站根据所述第一物理下行控制信道传输所在的子帧编号和/或TTI编号和/或符号编号和/或时隙编号和/或微时隙编号,与所述第一指示域所指示的ACK/NACK反馈信息的时域位置的子帧编号和/或TTI编号和/或符号编号和/或时隙编号和/或微时隙编号的大小或前后顺序,确定所述第一指示域所指示的ACK/NACK反馈信息的时域位置所在的无线帧或半帧或子帧或TTI或时隙或微时隙或符号的位置。
可能的实施方式中,所述ACK/NACK反馈信息的时域位置为以下方式之一或者其组合:
所述ACK/NACK反馈信息的时域位置所在的无线帧为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的无线帧,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的无线帧之后的第n1个无线帧,其中,所述n1为正整数;
所述ACK/NACK反馈信息的时域位置所在的半帧为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的半帧,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的半帧之后的第n2个半帧,其中,所述n2为正整数;
所述ACK/NACK反馈信息的时域位置所在的子帧为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的子帧,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道 传输所在的子帧之后的第n3个子帧,其中,所述n3为正整数;
所述ACK/NACK反馈信息的时域位置所在的时隙为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的时隙,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的时隙之后的第n4个时隙,其中,所述n4为正整数;
所述ACK/NACK反馈信息的时域位置所在的微时隙为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的微时隙,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的微时隙之后的第n5个微时隙,其中,所述n5为正整数;
所述ACK/NACK反馈信息的时域位置所在的TTI为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的TTI,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的TTI之后的第n6个TTI,其中,所述n6为正整数;
所述ACK/NACK反馈信息的时域位置所在的符号为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的符号,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的符号之后的第n7个符号,其中,所述n7为正整数。
可能的实施方式中,所述第一指示域指示所述ACK/NACK反馈信息传输所需占用的第一个符号的位置,所述ACK/NACK反馈信息占用以所述第一个符号为起点的连续A个上行符号,所述A为正整数;或者,
所述第一指示域指示所述ACK/NACK反馈信息传输所需占用的第一个TTI的位置,所述ACK/NACK反馈信息占用以所述第一个TTI为起点的连续A个上行TTI;或者,
所述第一指示域指示所述ACK/NACK反馈信息传输所需占用的第一个时隙的位置,所述ACK/NACK反馈信息占用以所述第一个时隙为起点的连续A个时隙;或者,
所述第一指示域指示所述ACK/NACK反馈信息传输所需占用的第一个微时隙的位置,所述ACK/NACK反馈信息占用以所述第一个微时隙为起点的连续A个微时隙;或者,
所述第一指示域指示所述ACK/NACK反馈信息传输所需占用的第一个子帧的位置,所述ACK/NACK反馈信息占用以所述第一个子帧为起点的连续A个子帧。
可能的实施方式中,若所述基站确定所述终端的多个所述第一物理下行控制信道的第一指示域所指示的ACK/NACK反馈信息的时域位置相同,所述方法还包括:
所述基站按照所述多个所述第一物理下行控制信道中的DCI中的下行分配索引DAI指示域,确定所述多个所述第一物理下行控制信道中的每个第一物理下行控制信道或与每个第一物理下行控制信道所对应的第一物理下行共享信道的ACK/NACK反馈信息的级联 顺序,根据确定的所述级联顺序解析在所述时域位置接收到的ACK/NACK反馈信息。
可能的实施方式中,所述时域位置为以下任意一种:
子帧编号和/或符号编号和/或TTI编号和/或时隙编号和/或微时隙编号。
第三方面,本申请实施例提供了一种终端,包括:
接收模块,用于接收第一物理下行控制信道,所述第一物理下行控制信道的下行控制信息DCI中携带第一指示域,所述第一指示域用于确定ACK/NACK反馈信息的时域位置;
反馈模块,用于根据所述第一指示域确定所述第一物理下行控制信道或者与所述第一物理下行控制信道对应的第一物理下行共享信道的ACK/NACK反馈信息的时域位置,并在所述ACK/NACK反馈信息的时域位置,传输所述ACK/NACK反馈信息。
可能的实施方式中,所述第一指示域具体用于指示K个能够用于传输ACK/NACK反馈信息的时域位置,所述K为正整数。
可能的实施方式中,所述第一指示域包含P个比特的信息,所述
Figure PCTCN2017075354-appb-000008
其中,
Figure PCTCN2017075354-appb-000009
表示向上取整。
可能的实施方式中,所述第一指示域用于指示传输所述ACK/NACK反馈信息的时域位置所在的无线帧或半帧或子帧或时隙或发送时间间隔TTI或微时隙或符号的位置。
可能的实施方式中,所述反馈模块还用于:
根据第一TTI长度和/或第二TTI长度确定所述第一指示域所指示的ACK/NACK反馈信息的时域位置所在的无线帧或半帧或子帧或时隙或微时隙或符号的位置,其中,所述第一TTI长度为所述第一物理下行控制信道和/或与所述第一物理下行控制信道对应的第一物理下行共享信道的TTI长度,所述第二TTI长度为预先配置或约定的用于确定ACK/NACK反馈信息的时域位置的TTI长度。
可能的实施方式中,所述反馈模块还用于:
根据所述第一物理下行控制信道传输所在的子帧编号和/或TTI编号和/或符号编号和/或时隙编号和/或微时隙编号,与所述第一指示域所指示的ACK/NACK反馈信息的时域位置的子帧编号和/或TTI编号和/或符号编号和/或时隙编号和/或微时隙编号的大小或前后顺序,确定所述第一指示域所指示的ACK/NACK反馈信息的时域位置所在的无线帧或半帧或子帧或TTI或时隙或微时隙或符号的位置。
可能的实施方式中,所述ACK/NACK反馈信息的时域位置为以下方式之一或者其组合:
所述ACK/NACK反馈信息的时域位置所在的无线帧为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的无线帧,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享 信道传输所在的无线帧之后的第n1个无线帧,其中,所述n1为正整数;
所述ACK/NACK反馈信息的时域位置所在的半帧为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的半帧,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的半帧之后的第n2个半帧,其中,所述n2为正整数;
所述ACK/NACK反馈信息的时域位置所在的子帧为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的子帧,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的子帧之后的第n3个子帧,其中,所述n3为正整数;
所述ACK/NACK反馈信息的时域位置所在的时隙为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的时隙,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的时隙之后的第n4个时隙,其中,所述n4为正整数;
所述ACK/NACK反馈信息的时域位置所在的微时隙为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的微时隙,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的微时隙之后的第n5个微时隙,其中,所述n5为正整数;
所述ACK/NACK反馈信息的时域位置所在的TTI为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的TTI,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的TTI之后的第n6个TTI,其中,所述n6为正整数;
所述ACK/NACK反馈信息的时域位置所在的符号为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的符号,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的符号之后的第n7个符号,其中,所述n7为正整数。
可能的实施方式中,所述第一指示域指示所述ACK/NACK反馈信息传输所需占用的第一个符号的位置,所述ACK/NACK反馈信息占用以所述第一个符号为起点的连续A个上行符号,所述A为正整数;或者,
所述第一指示域指示所述ACK/NACK反馈信息传输所需占用的第一个TTI的位置,所述ACK/NACK反馈信息占用以所述第一个TTI为起点的连续A个上行TTI;或者,
所述第一指示域指示所述ACK/NACK反馈信息传输所需占用的第一个时隙的位置,所述ACK/NACK反馈信息占用以所述第一个时隙为起点的连续A个时隙;或者,
所述第一指示域指示所述ACK/NACK反馈信息传输所需占用的第一个微时隙的位置, 所述ACK/NACK反馈信息占用以所述第一个微时隙为起点的连续A个微时隙;或者,
所述第一指示域指示所述ACK/NACK反馈信息传输所需占用的第一个子帧的位置,所述ACK/NACK反馈信息占用以所述第一个子帧为起点的连续A个子帧。
可能的实施方式中,所述反馈模块具体用于:
若所述终端根据多个所述第一物理下行控制信道的第一指示域分别确定的ACK/NACK反馈信息的时域位置相同,按照所述多个所述第一物理下行控制信道中的DCI中的下行分配索引DAI指示域,将所述多个所述第一物理下行控制信道中的每个第一物理下行控制信道或与每个第一物理下行控制信道所对应的第一物理下行共享信道的ACK/NACK反馈信息级联后,在所述ACK/NACK反馈信息的时域位置传输。
可能的实施方式中,所述时域位置为以下任意一种:
子帧编号和/或符号编号和/或TTI编号和/或时隙编号和/或微时隙编号。
第四方面,本申请实施例提供了一种基站,包括:
发送模块,用于向终端发送第一物理下行控制信道,所述第一物理下行控制信道的下行控制信息DCI中携带第一指示域,所述第一指示域用于确定ACK/NACK反馈信息的时域位置;
接收模块,用于在根据所述第一指示域确定的ACK/NACK反馈信息的时域位置,接收所述终端反馈的所述第一物理下行控制信道或者与所述第一物理下行控制信道对应的第一物理下行共享信道的ACK/NACK反馈信息。
可能的实施方式中,所述第一指示域具体用于指示K个能够用于传输ACK/NACK反馈信息的时域位置,所述K为正整数。
可能的实施方式中,所述第一指示域包含P个比特的信息,所述
Figure PCTCN2017075354-appb-000010
其中,
Figure PCTCN2017075354-appb-000011
表示向上取整。
可能的实施方式中,所述第一指示域用于指示传输所述ACK/NACK反馈信息的时域位置所在的无线帧或半帧或子帧或时隙或发送时间间隔TTI或微时隙或符号的位置。
可能的实施方式中,还包括处理模块,用于:
根据第一TTI长度和/或第二TTI长度确定所述第一指示域所指示的ACK/NACK反馈信息的时域位置所在的无线帧或半帧或子帧或时隙或微时隙或符号的位置,其中,所述第一TTI长度为所述第一物理下行控制信道和/或与所述第一物理下行控制信道对应的第一物理下行共享信道的TTI长度,所述第二TTI长度为预先配置或约定的用于确定ACK/NACK反馈信息的时域位置的TTI长度。
可能的实施方式中,还包括处理模块,用于:
根据所述第一物理下行控制信道传输所在的子帧编号和/或TTI编号和/或符号编号和/ 或时隙编号和/或微时隙编号,与所述第一指示域所指示的ACK/NACK反馈信息的时域位置的子帧编号和/或TTI编号和/或符号编号和/或时隙编号和/或微时隙编号的大小或前后顺序,确定所述第一指示域所指示的ACK/NACK反馈信息的时域位置所在的无线帧或半帧或子帧或TTI或时隙或微时隙或符号的位置。
可能的实施方式中,所述ACK/NACK反馈信息的时域位置为以下方式之一或者其组合:
所述ACK/NACK反馈信息的时域位置所在的无线帧为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的无线帧,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的无线帧之后的第n1个无线帧,其中,所述n1为正整数;
所述ACK/NACK反馈信息的时域位置所在的半帧为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的半帧,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的半帧之后的第n2个半帧,其中,所述n2为正整数;
所述ACK/NACK反馈信息的时域位置所在的子帧为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的子帧,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的子帧之后的第n3个子帧,其中,所述n3为正整数;
所述ACK/NACK反馈信息的时域位置所在的时隙为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的时隙,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的时隙之后的第n4个时隙,其中,所述n4为正整数;
所述ACK/NACK反馈信息的时域位置所在的微时隙为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的微时隙,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的微时隙之后的第n5个微时隙,其中,所述n5为正整数;
所述ACK/NACK反馈信息的时域位置所在的TTI为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的TTI,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的TTI之后的第n6个TTI,其中,所述n6为正整数;
所述ACK/NACK反馈信息的时域位置所在的符号为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的符号,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道 传输所在的符号之后的第n7个符号,其中,所述n7为正整数。
可能的实施方式中,所述第一指示域指示所述ACK/NACK反馈信息传输所需占用的第一个符号的位置,所述ACK/NACK反馈信息占用以所述第一个符号为起点的连续A个上行符号,所述A为正整数;或者,
所述第一指示域指示所述ACK/NACK反馈信息传输所需占用的第一个TTI的位置,所述ACK/NACK反馈信息占用以所述第一个TTI为起点的连续A个上行TTI;或者,
所述第一指示域指示所述ACK/NACK反馈信息传输所需占用的第一个时隙的位置,所述ACK/NACK反馈信息占用以所述第一个时隙为起点的连续A个时隙;或者,
所述第一指示域指示所述ACK/NACK反馈信息传输所需占用的第一个微时隙的位置,所述ACK/NACK反馈信息占用以所述第一个微时隙为起点的连续A个微时隙;或者,
所述第一指示域指示所述ACK/NACK反馈信息传输所需占用的第一个子帧的位置,所述ACK/NACK反馈信息占用以所述第一个子帧为起点的连续A个子帧。
可能的实施方式中,还包括处理模块,用于:
若所述基站确定所述终端的多个所述第一物理下行控制信道的第一指示域所指示的ACK/NACK反馈信息的时域位置相同,按照所述多个所述第一物理下行控制信道中的DCI中的下行分配索引DAI指示域,确定所述多个所述第一物理下行控制信道中的每个第一物理下行控制信道或与每个第一物理下行控制信道所对应的第一物理下行共享信道的ACK/NACK反馈信息的级联顺序,根据确定的所述级联顺序解析在所述时域位置接收到的ACK/NACK反馈信息。
可能的实施方式中,所述时域位置为以下任意一种:
子帧编号和/或符号编号和/或TTI编号和/或时隙编号和/或微时隙编号。
第五方面,本申请实施例提供了另一种终端,包括处理器、存储器和收发机,其中,收发机用于在处理器的控制下接收和发送数据,存储器中保存有预设的程序,处理器读取存储器中保存的程序,按照该程序执行以下过程:
通过收发机接收第一物理下行控制信道,所述第一物理下行控制信道的下行控制信息DCI中携带第一指示域,所述第一指示域用于确定ACK/NACK反馈信息的时域位置;
根据所述第一指示域确定所述第一物理下行控制信道或者与所述第一物理下行控制信道对应的第一物理下行共享信道的ACK/NACK反馈信息的时域位置,并指示收发机在所述ACK/NACK反馈信息的时域位置,传输所述ACK/NACK反馈信息。
可能的实施方式中,所述第一指示域具体用于指示K个能够用于传输ACK/NACK反馈信息的时域位置,所述K为正整数。
可能的实施方式中,所述第一指示域包含P个比特的信息,所述
Figure PCTCN2017075354-appb-000012
其中,
Figure PCTCN2017075354-appb-000013
表示向上取整。
可能的实施方式中,所述第一指示域用于指示传输所述ACK/NACK反馈信息的时域位置所在的无线帧或半帧或子帧或时隙或发送时间间隔TTI或微时隙或符号的位置。
可能的实施方式中,处理器还用于:
根据第一TTI长度和/或第二TTI长度确定所述第一指示域所指示的ACK/NACK反馈信息的时域位置所在的无线帧或半帧或子帧或时隙或微时隙或符号的位置,其中,所述第一TTI长度为所述第一物理下行控制信道和/或与所述第一物理下行控制信道对应的第一物理下行共享信道的TTI长度,所述第二TTI长度为预先配置或约定的用于确定ACK/NACK反馈信息的时域位置的TTI长度。
可能的实施方式中,处理器还用于:
根据所述第一物理下行控制信道传输所在的子帧编号和/或TTI编号和/或符号编号和/或时隙编号和/或微时隙编号,与所述第一指示域所指示的ACK/NACK反馈信息的时域位置的子帧编号和/或TTI编号和/或符号编号和/或时隙编号和/或微时隙编号的大小或前后顺序,确定所述第一指示域所指示的ACK/NACK反馈信息的时域位置所在的无线帧或半帧或子帧或TTI或时隙或微时隙或符号的位置。
可能的实施方式中,所述ACK/NACK反馈信息的时域位置为以下方式之一或者其组合:
所述ACK/NACK反馈信息的时域位置所在的无线帧为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的无线帧,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的无线帧之后的第n1个无线帧,其中,所述n1为正整数;
所述ACK/NACK反馈信息的时域位置所在的半帧为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的半帧,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的半帧之后的第n2个半帧,其中,所述n2为正整数;
所述ACK/NACK反馈信息的时域位置所在的子帧为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的子帧,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的子帧之后的第n3个子帧,其中,所述n3为正整数;
所述ACK/NACK反馈信息的时域位置所在的时隙为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的时隙,或者所述 第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的时隙之后的第n4个时隙,其中,所述n4为正整数;
所述ACK/NACK反馈信息的时域位置所在的微时隙为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的微时隙,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的微时隙之后的第n5个微时隙,其中,所述n5为正整数;
所述ACK/NACK反馈信息的时域位置所在的TTI为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的TTI,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的TTI之后的第n6个TTI,其中,所述n6为正整数;
所述ACK/NACK反馈信息的时域位置所在的符号为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的符号,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的符号之后的第n7个符号,其中,所述n7为正整数。
可能的实施方式中,所述第一指示域指示所述ACK/NACK反馈信息传输所需占用的第一个符号的位置,所述ACK/NACK反馈信息占用以所述第一个符号为起点的连续A个上行符号,所述A为正整数;或者,
所述第一指示域指示所述ACK/NACK反馈信息传输所需占用的第一个TTI的位置,所述ACK/NACK反馈信息占用以所述第一个TTI为起点的连续A个上行TTI;或者,
所述第一指示域指示所述ACK/NACK反馈信息传输所需占用的第一个时隙的位置,所述ACK/NACK反馈信息占用以所述第一个时隙为起点的连续A个时隙;或者,
所述第一指示域指示所述ACK/NACK反馈信息传输所需占用的第一个微时隙的位置,所述ACK/NACK反馈信息占用以所述第一个微时隙为起点的连续A个微时隙;或者,
所述第一指示域指示所述ACK/NACK反馈信息传输所需占用的第一个子帧的位置,所述ACK/NACK反馈信息占用以所述第一个子帧为起点的连续A个子帧。
可能的实施方式中,处理器具体用于:
若所述终端根据多个所述第一物理下行控制信道的第一指示域分别确定的ACK/NACK反馈信息的时域位置相同,按照所述多个所述第一物理下行控制信道中的DCI中的下行分配索引DAI指示域,将所述多个所述第一物理下行控制信道中的每个第一物理下行控制信道或与每个第一物理下行控制信道所对应的第一物理下行共享信道的ACK/NACK反馈信息级联后,在所述ACK/NACK反馈信息的时域位置传输。
可能的实施方式中,所述时域位置为以下任意一种:
子帧编号和/或符号编号和/或TTI编号和/或时隙编号和/或微时隙编号。
第六方面,本申请实施例还提供了另一种基站,包括处理器、存储器和收发机,其中,收发机用于在处理器的控制下接收和发送数据,存储器中保存有预设的程序,处理器读取存储器中保存的程序,按照该程序执行以下过程:
通过收发机向终端发送第一物理下行控制信道,所述第一物理下行控制信道的下行控制信息DCI中携带第一指示域,所述第一指示域用于确定ACK/NACK反馈信息的时域位置;
指示收发机在根据所述第一指示域确定的ACK/NACK反馈信息的时域位置,接收所述终端反馈的所述第一物理下行控制信道或者与所述第一物理下行控制信道对应的第一物理下行共享信道的ACK/NACK反馈信息。
可能的实施方式中,所述第一指示域具体用于指示K个能够用于传输ACK/NACK反馈信息的时域位置,所述K为正整数。
可能的实施方式中,所述第一指示域包含P个比特的信息,所述
Figure PCTCN2017075354-appb-000014
其中,
Figure PCTCN2017075354-appb-000015
表示向上取整。
可能的实施方式中,所述第一指示域用于指示传输所述ACK/NACK反馈信息的时域位置所在的无线帧或半帧或子帧或时隙或发送时间间隔TTI或微时隙或符号的位置。
可能的实施方式中,处理器还用于:
根据第一TTI长度和/或第二TTI长度确定所述第一指示域所指示的ACK/NACK反馈信息的时域位置所在的无线帧或半帧或子帧或时隙或微时隙或符号的位置,其中,所述第一TTI长度为所述第一物理下行控制信道和/或与所述第一物理下行控制信道对应的第一物理下行共享信道的TTI长度,所述第二TTI长度为预先配置或约定的用于确定ACK/NACK反馈信息的时域位置的TTI长度。
可能的实施方式中,处理器还用于:
根据所述第一物理下行控制信道传输所在的子帧编号和/或TTI编号和/或符号编号和/或时隙编号和/或微时隙编号,与所述第一指示域所指示的ACK/NACK反馈信息的时域位置的子帧编号和/或TTI编号和/或符号编号和/或时隙编号和/或微时隙编号的大小或前后顺序,确定所述第一指示域所指示的ACK/NACK反馈信息的时域位置所在的无线帧或半帧或子帧或TTI或时隙或微时隙或符号的位置。
可能的实施方式中,所述ACK/NACK反馈信息的时域位置为以下方式之一或者其组合:
所述ACK/NACK反馈信息的时域位置所在的无线帧为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的无线帧,或者 所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的无线帧之后的第n1个无线帧,其中,所述n1为正整数;
所述ACK/NACK反馈信息的时域位置所在的半帧为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的半帧,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的半帧之后的第n2个半帧,其中,所述n2为正整数;
所述ACK/NACK反馈信息的时域位置所在的子帧为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的子帧,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的子帧之后的第n3个子帧,其中,所述n3为正整数;
所述ACK/NACK反馈信息的时域位置所在的时隙为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的时隙,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的时隙之后的第n4个时隙,其中,所述n4为正整数;
所述ACK/NACK反馈信息的时域位置所在的微时隙为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的微时隙,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的微时隙之后的第n5个微时隙,其中,所述n5为正整数;
所述ACK/NACK反馈信息的时域位置所在的TTI为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的TTI,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的TTI之后的第n6个TTI,其中,所述n6为正整数;
所述ACK/NACK反馈信息的时域位置所在的符号为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的符号,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的符号之后的第n7个符号,其中,所述n7为正整数。
可能的实施方式中,所述第一指示域指示所述ACK/NACK反馈信息传输所需占用的第一个符号的位置,所述ACK/NACK反馈信息占用以所述第一个符号为起点的连续A个上行符号,所述A为正整数;或者,
所述第一指示域指示所述ACK/NACK反馈信息传输所需占用的第一个TTI的位置,所述ACK/NACK反馈信息占用以所述第一个TTI为起点的连续A个上行TTI;或者,
所述第一指示域指示所述ACK/NACK反馈信息传输所需占用的第一个时隙的位置, 所述ACK/NACK反馈信息占用以所述第一个时隙为起点的连续A个时隙;或者,
所述第一指示域指示所述ACK/NACK反馈信息传输所需占用的第一个微时隙的位置,所述ACK/NACK反馈信息占用以所述第一个微时隙为起点的连续A个微时隙;或者,
所述第一指示域指示所述ACK/NACK反馈信息传输所需占用的第一个子帧的位置,所述ACK/NACK反馈信息占用以所述第一个子帧为起点的连续A个子帧。
可能的实施方式中,处理器还用于:
若所述基站确定所述终端的多个所述第一物理下行控制信道的第一指示域所指示的ACK/NACK反馈信息的时域位置相同,按照所述多个所述第一物理下行控制信道中的DCI中的下行分配索引DAI指示域,确定所述多个所述第一物理下行控制信道中的每个第一物理下行控制信道或与每个第一物理下行控制信道所对应的第一物理下行共享信道的ACK/NACK反馈信息的级联顺序,根据确定的所述级联顺序解析在所述时域位置接收到的ACK/NACK反馈信息。
可能的实施方式中,所述时域位置为以下任意一种:
子帧编号和/或符号编号和/或TTI编号和/或时隙编号和/或微时隙编号。
基于上述技术方案,本申请实施例中,通过物理下行控制信道通知ACK/NACK反馈信息传输的时域位置,实现eNB在尽可能减少反馈时延的同时可灵活控制ACK/NACK负载在不同上行传输资源上的均衡,提升系统性能。
附图说明
图1为背景技术中FS1的结构示意图;
图2为背景技术中FS2的结构示意图;
图3A为本申请实施例中终端侧进行ACK/NACK反馈的方法流程示意图;
图3B为本申请实施例中基站侧进行ACK/NACK反馈信息获取的方法流程示意图;
图4为本申请第一具体实施例中根据DCI指示一个终端在不同子帧中占用不同资源的下行传输所对应的ACK/NACK反馈信息的传输时域位置的示意图;
图5为本申请第二具体实施例中根据DCI指示一个终端在不同子帧中占用不同资源的下行传输所对应的ACK/NACK反馈信息的传输时域位置的示意图;
图6为本申请第二具体实施例中另一根据DCI指示一个终端在不同子帧中占用不同资源的下行传输所对应的ACK/NACK反馈信息的传输时域位置的示意图;
图7为本申请第三具体实施例中根据DCI指示一个终端在不同子帧中占用不同资源的下行传输所对应的ACK/NACK反馈信息的传输时域位置的示意图;
图8为本申请第四具体实施例中根据DCI指示一个终端在不同子帧中占用不同资源的下行传输所对应的ACK/NACK反馈信息的传输时域位置的示意图;
图9为本申请第四具体实施例中另一根据DCI指示一个终端在不同子帧中占用不同资源的下行传输所对应的ACK/NACK反馈信息的传输时域位置的示意图;
图10为本申请实施例中终端结构示意图;
图11为本申请实施例中基站结构示意图;
图12为本申请实施例中另一终端结构示意图;
图13为本申请实施例中另一基站结构示意图。
具体实施方式
为了使本申请的目的、技术方案和优点更加清楚,下面将结合附图对本申请作进一步地详细描述,显然,所描述的实施例仅仅是本申请一部分实施例,而不是全部的实施例。基于本申请中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其它实施例,都属于本申请保护的范围。
本申请实施例中,如图3A所示,终端侧进行ACK/NACK反馈的详细过程如下:
步骤301:终端接收第一物理下行控制信道,所述第一物理下行控制信道的下行控制信息(Downlink Control Information,DCI)中携带第一指示域,所述第一指示域用于确定ACK/NACK反馈信息的时域位置。
本申请实施例中,第一物理下行控制信道的TTI的长度小于1ms,或者,第一物理下行控制信道所对应的第一物理下行共享信道的TTI的长度小于1ms。还可以是,第一物理下行控制信道的TTI的长度还可以大于1ms,或者,第一物理下行控制信道所对应的第一物理下行共享信道的TTI的长度大于1ms。例如,以N个子帧作为一个TTI,其中N为大于1的正整数。其中,TTI为预先约定或配置的最小传输单位,包括A1个符号,A1为预先预定或者配置的正整数。
实施中,所述第一指示域具体用于指示K个能够用于传输ACK/NACK反馈信息的时域位置,所述K为正整数。该情况下,所述第一指示域包含P个比特的信息,所述
Figure PCTCN2017075354-appb-000016
其中,
Figure PCTCN2017075354-appb-000017
表示向上取整。
实施中,所述时域位置可以为子帧编号和/或符号编号和/或传输时间间隔TTI编号和/或时隙编号和/或微时隙编号。
具体不限于如下表现方式:
一个或多个无线帧中的子帧编号和/或符号编号和/或传输时间间隔TTI编号和/或时隙编号和/或微时隙编号;或者,
一个或多个半帧中的子帧编号和/或符号编号和/或TTI编号和/或时隙编号和/或微时隙编号;或者,
一个或多个子帧中的符号编号和/或TTI编号和/或时隙编号和/或微时隙编号;或者,
一个或多个时隙中的符号编号和/或TTI编号和/或微时隙编号。
具体地,所述时域位置具体可以有如下定义方法:
一个或多个无线帧或半帧中的任意一个或部分上行子帧或时隙或微时隙或符号或TTI;或者,
一个或多个无线帧或半帧中的任意一个或部分包含用于上行传输的符号的子帧或时隙或微时隙;或者,
一个或多个无线帧或半帧中的任意一个或部分包含用于上行传输的连续符号个数不少于预设个数的子帧或时隙或微时隙;或者,
一个或多个无线帧或半帧中的任意一个或部分用于上行传输的符号或TTI时隙或微时隙;或者,
一个或多个无线帧或半帧中的任意一个或部分上行子帧或时隙或微时隙中的任意一个或者部分符号;或者,
一个或多个无线帧或半帧中的任意一个或部分上行子帧或时隙或微时隙中的任意一个或者部分TTI;或者,
一个或多个无线帧或半帧中的任意一个或部分上行子帧或时隙中的任意一个或者部分微时隙;或者,一个或多个无线帧或半帧中的任意一个或部分上行子帧或时隙或微时隙中的A个符号,其中,所述A为所述ACK/NACK反馈信息传输所需占用的符号个数,所述A为正整数;或者,
一个或多个无线帧或半帧中的任意一个或部分上行子帧或时隙或微时隙中的A个TTI,其中,所述A为所述ACK/NACK反馈信息传输所需占用的TTI个数;或者,
一个或多个无线帧或半帧中的任意一个或部分上行子帧或时隙中的A个微时隙,其中,所述A为所述ACK/NACK反馈信息传输所需占用的微时隙个数;或者,
一个或多个无线帧或半帧中的任意一个或部分上行子帧中的A个时隙,其中,所述A为所述ACK/NACK反馈信息传输所需占用的时隙个数;或者,
一个或多个无线帧或半帧中的全部或者部分上行子帧中的A个子帧,其中,所述A为所述ACK/NACK反馈信息传输所需占用的子帧个数;或者,
一个或多个无线帧或半帧中的任意一个或部分包含用于上行传输的符号的子帧或时隙或微时隙中的用于上行传输的任意一个或部分符号;或者,
一个或多个无线帧或半帧中的任意一个或部分包含用于上行传输的符号的子帧或时隙或微时隙中的用于上行传输的任意一个或者部分TTI;或者,
一个或多个无线帧或半帧中的任意一个或部分包含用于上行传输的符号的子帧或时隙中的用于上行传输的任意一个或者部分微时隙;或者,
一个或多个无线帧或半帧中的任意一个或部分包含用于上行传输的符号的子帧或时 隙或微时隙中的A个符号,其中,所述A为所述ACK/NACK反馈信息传输所需占用的符号个数;或者,
一个或多个无线帧或半帧中的任意一个或部分包含用于上行传输的符号的子帧或时隙或微时隙中的A个TTI,其中,所述A为所述ACK/NACK反馈信息传输所需占用的TTI个数;或者,
一个或多个无线帧或半帧中的任意一个或部分包含用于上行传输的符号的子帧或时隙中的A个微时隙,其中,所述A为所述ACK/NACK反馈信息传输所需占用的微时隙个数;或者,
一个或多个无线帧或半帧中的任意一个或部分包含用于上行传输的符号的子帧中的A个时隙,其中,所述A为所述ACK/NACK反馈信息传输所需占用的时隙个数;或者,
一个或多个无线帧或半帧中的全部或者部分包含用于上行传输的符号的子帧中的A子帧,其中,所述A为所述ACK/NACK反馈信息传输所需占用的子帧个数;或者,
一个或多个无线帧或半帧中的任意一个或部分包含用于上行传输的连续符号的个数不少于预设个数的子帧或时隙或微时隙中的用于上行传输的任意一个或者部分符号;或者,
一个或多个无线帧或半帧中的任意一个或部分包含用于上行传输的连续符号的个数不少于预设个数的子帧或时隙或微时隙中的用于上行传输的任意一个或者部分TTI;或者,
一个或多个无线帧或半帧中的任意一个或部分包含用于上行传输的连续符号的个数不少于预设个数的子帧或时隙中的用于上行传输的任意一个或者部分微时隙;或者,
一个或多个无线帧或半帧中的全部或部分包含用于上行传输的连续符号个数不少于预设个数的子帧或时隙或微时隙中的A个符号,其中,所述A为所述ACK/NACK反馈信息传输所需占用的符号个数;或者,
一个或多个无线帧或半帧中的全部或部分包含用于上行传输的连续符号个数不少于预设个数的子帧或时隙或微时隙中的A个TTI,其中,所述A为所述ACK/NACK反馈信息传输所需占用的TTI个数;或者,
一个或多个无线帧或半帧中的全部或部分包含用于上行传输的连续符号个数不少于预设个数的子帧中或时隙的A个微时隙,其中,所述A为所述ACK/NACK反馈信息传输所需占用的微时隙个数;或者,
一个或多个无线帧或半帧中的全部或部分包含用于上行传输的连续符号个数不少于预设个数的子帧中的A个时隙,其中,所述A为所述ACK/NACK反馈信息传输所需占用的时隙个数;或者,
一个或多个无线帧或半帧中的全部或部分包含用于上行传输的连续符号个数不少于预设个数的子帧中的A个子帧,其中,所述A为所述ACK/NACK反馈信息传输所需占用 的子帧个数;
其中,部分满足条件的子帧或上行子帧可以为奇数上行子帧或者偶数上行子帧,或者前一部分上行子帧,或者后一部分上行子帧,或者特定指出的部分上行子帧,例如子帧2和/或7等;对于TDD,可以包括UpPTS或者不包括UpPTS;
所述A个符号为所述子帧中的前A个连续的符号,或者所述子帧中的后A个连续的符号,或者为所述子帧中的指定位置的A个连续的符号;或者
所述A个TTI为所述子帧中的前A个连续的TTI,或者所述子帧中的后A个连续的TTI,或者为所述子帧中的指定位置的A个连续的TTI;或者
所述A个微时隙为所述子帧中的前A个连续的微时隙,或者所述子帧中的后A个连续的微时隙,或者为所述子帧中的指定位置的A个连续的微时隙;或者,
所述A个时隙为所述子帧(可以为一个或多个子帧)中的前A个连续的时隙,或者所述子帧中的后A个连续的时隙,或者为所述子帧中的指定位置的A个连续的时隙;或者,
所述A个子帧为一个无线帧或半帧中的前A个连续的子帧,或者所述子帧中的后A个连续的子帧,或者为所述子帧中的指定位置的A个连续的子帧。
实施中,微时隙(mini-slot),为预先定义或配置的包含Z符号的单元,例如包含1或2个符号的单元;当然也可以是其他符号个数。
步骤302:终端根据所述第一指示域确定所述第一物理下行控制信道或者与所述第一物理下行控制信道对应的第一物理下行共享信道的ACK/NACK反馈信息的时域位置,并在所述ACK/NACK反馈信息的时域位置,传输所述ACK/NACK反馈信息。
实施中,所述第一指示域指示所述ACK/NACK反馈信息传输所需占用的第一个符号的位置,所述ACK/NACK反馈信息占用以所述第一个符号为起点的连续A个上行符号,所述A为正整数;或者,所述第一指示域指示所述ACK/NACK反馈信息传输所需占用的第一个TTI的位置,所述ACK/NACK反馈信息占用以所述第一个TTI为起点的连续A个上行TTI;或者,
所述第一指示域指示所述ACK/NACK反馈信息传输所需占用的第一个时隙的位置,所述ACK/NACK反馈信息占用以所述第一个时隙为起点的连续A个时隙;或者,
所述第一指示域指示所述ACK/NACK反馈信息传输所需占用的第一个微时隙的位置,所述ACK/NACK反馈信息占用以所述第一个微时隙为起点的连续A个微时隙;或者,
所述第一指示域指示所述ACK/NACK反馈信息传输所需占用的第一个子帧的位置,所述ACK/NACK反馈信息占用以所述第一个子帧为起点的连续A个子帧。
实施中,所述第一指示域用于指示传输所述ACK/NACK反馈信息的时域位置所在的无线帧或半帧或子帧或时隙或TTI或微时隙或符号的位置。
具体地,终端确定传输所述ACK/NACK反馈信息的时域位置所在的无线帧或半帧或 子帧或时隙或微时隙或符号的位置的具体实现方式包括但不限于以下两种:
第一种实现方式,所述终端根据第一TTI长度和/或第二TTI长度确定所述第一指示域所指示的ACK/NACK反馈信息的时域位置所在的无线帧或半帧或子帧或时隙或微时隙或符号的位置,其中,所述第一TTI长度为所述第一物理下行控制信道和/或与所述第一物理下行控制信道对应的第一物理下行共享信道的TTI长度,所述第二TTI长度为预先配置或约定的用于确定ACK/NACK反馈信息的时域位置的TTI长度。
为了简单起见,将“所述第一物理下行控制信道和/或与所述第一物理下行控制信道对应的第一物理下行共享信道”用“所述下行传输”来做简短的替代,即终端根据所述下行传输的处理时延以及第一指示域所指示的一个无线帧或半个无线帧或一个子帧或一个时隙或一个微时隙中的时域资源,来确定ACK/NACK反馈信息的时域位置;处理时延具体为对所述下行传输进行处理、并产生相应的反馈信息的过程,例如处理时延可以定义为:所述下行传输的TTI长度*k,或者预先配置或约定的用于确定ACK/NACK时域位置的TTI长度*k,或者max(预先配置或约定的用于确定ACK/NACK时域位置的TTI长度,所述下行传输的TTI长度)*k。其中,max(a,b)为取a和b中的最大值。其中,k为预先定义或者配置的正整数值。例如k=3,即此时处理时延不包括下行传输本身的接收时间;或者k=4,即此时处理时延包括下行传输本身的接收时间。
以处理时延不包括下行传输本身的接收时间为例,根据该处理时延确定反馈信息的时域位置,具体包括但不限于以下两种方法:
方法1:确定所述时域位置为:
在所述下行传输的结束时间位置或结束符号位置之后,满足L1*k的时间长度之后或L2*k个符号之后的第一个所述第一指示域所指示的时域资源;
或者,在所述下行传输的结束时间位置或结束符号位置之后,不早于L1*k的时间长度或L2*k个符号的第一个所述第一指示域所指示的时域资源;
或者,以所述下行传输的TTI长度进行TTI编号,在编号为n+k的TTI之后的第一个所述第一指示域所指示的时域资源,其中,所述下行传输所在的TTI编号为n;
或者,在与所述下行传输的结束时间位置或结束符号位置间隔不少于L1*k的时间长度或L2*k个符号的第一个所述第一指示域所指示的时域资源;
其中,上述L1为以时间为单位的所述下行传输的TTI长度,例如所述下行传输的TTI长度为L1毫秒,L2为以符号为单位的所述下行传输的TTI长度,例如所述下行传输的TTI长度为L2个符号。
方法2:确定所述时域位置为:
在按照特定TTI长度确定的所述下行传输的结束时间位置或结束符号位置之后,满足L3*k的时间长度之后或L4*k个符号之后的第一个所述第一指示域所指示的时域资源;
或者,在按照特定TTI长度确定的所述下行传输的结束时间位置或结束符号位置之后,不早于L3*k的时间长度或L4*k个符号的第一个所述第一指示域所指示的时域资源;
或者,以特定TTI长度进行TTI编号,在编号为n+k的TTI之后的第一个所述第一指示域所指示的时域资源,其中,所述下行传输所在的TTI编号为n;
或者,在与按照特定TTI长度确定的所述下行传输的结束时间位置或结束符号位置间隔不少于L3*k的时间长度或L4*k个符号的第一个所述第一指示域所指示的时域资源;
其中,所述L3为以时间为单位的所述特定TTI长度,例如所述特定TTI长度为L3毫秒,所述L2为以符号为单位的所述特定TTI长度,例如所述特定TTI长度为L4个符号;所述特定TTI长度为预先配置或约定的用于确定ACK/NACK时域位置的TTI长度,或者为max(预先配置或约定的用于确定ACK/NACK时域位置的TTI长度,所述下行传输的TTI长度)。
当处理时延包括下行传输本身的接收时间时,根据该处理时延确定反馈信息的时域位置,具体过程与上述过程类似,所不同的是需要以所述下行传输的开始位置为基准向后进行处理时延长度的延迟,确定为满足延迟的第一个所述第一指示域所指示的时域资源;
通过上述过程,可以确定满足处理时延的第一个所述第一指示域所指示的时域资源在所述下行传输所在无线帧或者半帧或者子帧或者时隙或者微时隙或者TTI或者符号中,还是在所述下行传输所在无线帧或者半帧或者子帧或者时隙或者微时隙或者TTI或者符号的后一个无线帧或者后1或2个半帧或者后X1个子帧或者后X2个时隙或者后X3个微时隙或者后X4个TTI或者后X5个符号中。例如,如果所述下行传输所在的无线帧中的所述第一指示域所指示的时域资源满足处理时延,则确定所述第一指示域所指示的时域资源在当前无线帧中;如果所述下行传输所在的无线帧中的所述第一指示域所指示的时域资源不满足处理时延,或者如果所述下行传输所在的无线帧的下一个无线帧中的所述第一指示域所指示的时域资源为最近一个满足处理时延的时域位置,则确定所述第一指示域所指示的时域资源在当前无线帧的下一个无线帧中。半帧位置/子帧位置/时隙位置/微时隙位置/TTI位置/符号位置的判断类似,不再赘述。
第二种实现方式,终端根据所述第一物理下行控制信道传输所在的子帧编号,与所述第一指示域所指示的ACK/NACK反馈信息的时域位置的子帧编号的大小或前后顺序,确定所述第一指示域所指示的ACK/NACK反馈信息的时域位置所在的无线帧或半帧或子帧的位置;
或者,终端根据所述第一物理下行控制信道传输所在的时隙编号,与所述第一指示域所指示的ACK/NACK反馈信息的时域位置的时隙编号的大小或前后顺序,确定所述第一指示域所指示的ACK/NACK反馈信息的时域位置所在的无线帧或半帧或子帧或时隙的位置;
或者,终端根据所述第一物理下行控制信道传输所在的TTI编号,与所述第一指示域所指示的ACK/NACK反馈信息的时域位置的TTI编号的大小或前后顺序,确定所述第一指示域所指示的ACK/NACK反馈信息的时域位置所在的无线帧或半帧或时隙或TTI的位置;
或者,终端根据所述第一物理下行控制信道传输所在的微时隙编号,与所述第一指示域所指示的ACK/NACK反馈信息的时域位置的微时隙编号的大小或前后顺序,确定所述第一指示域所指示的ACK/NACK反馈信息的时域位置所在的无线帧或半帧或子帧或时隙或微时隙的位置;
或者,终端根据所述第一物理下行控制信道传输所在的符号编号,与所述第一指示域所指示的ACK/NACK反馈信息的时域位置的符号编号的大小或前后顺序,确定所述第一指示域所指示的ACK/NACK反馈信息的时域位置所在的无线帧或半帧或子帧或时隙或微时隙或符号的位置。
也就是说,第一指示域所指示的ACK/NACK反馈信息的时域位置不早于所述第一物理下行控制信道或与该第一物理下行控制信道所对应的第一物理下行共享信道传输的时域位置。例如,如果第一物理下行控制信道或与该第一物理下行控制信道所对应的第一物理下行共享信道在子帧#5传输,第一指示域指示的ACK/NACK反馈信息的时域位置在子帧#0,则由于在第一物理下行控制信道或与该第一物理下行控制信道所对应的第一物理下行共享信道传输所在的无线帧中,子帧#0早于子帧#5,则判断第一指示域指示的ACK/NACK反馈信息的时域位置在下一个无线帧中的子帧#0;半帧位置/子帧位置/时隙位置/微时隙位置/TTI位置/符号位置的确定方式类似,不再赘述。
本申请实施例中,所述ACK/NACK反馈信息的时域位置为以下方式之一或者其组合:
所述ACK/NACK反馈信息的时域位置所在的无线帧为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的无线帧,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的无线帧之后的第n1个无线帧,其中,所述n1为正整数;
所述ACK/NACK反馈信息的时域位置所在的半帧为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的半帧,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的半帧之后的第n2个半帧,其中,所述n2为正整数;
所述ACK/NACK反馈信息的时域位置所在的子帧为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的子帧,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的子帧之后的第n3个子帧,其中,所述n3为正整数;
所述ACK/NACK反馈信息的时域位置所在的时隙为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的时隙,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的时隙之后的第n4个时隙,其中,所述n4为正整数;
所述ACK/NACK反馈信息的时域位置所在的微时隙为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的微时隙,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的微时隙之后的第n5个微时隙,其中,所述n5为正整数;
所述ACK/NACK反馈信息的时域位置所在的TTI为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的TTI,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的TTI之后的第n6个TTI,其中,所述n6为正整数;
所述ACK/NACK反馈信息的时域位置所在的符号为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的符号,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的符号之后的第n7个符号,其中,所述n7为正整数。
实施中,若所述终端根据多个所述第一物理下行控制信道的第一指示域分别确定的ACK/NACK反馈信息的时域位置相同,所述终端按照所述多个所述第一物理下行控制信道中的DCI中的DAI指示域(后称第二指示域),将所述多个所述第一物理下行控制信道中的每个第一物理下行控制信道或与每个第一物理下行控制信道所对应的第一物理下行共享信道的ACK/NACK反馈信息级联后,在所述ACK/NACK反馈信息的时域位置传输。其中DAI作为计数器,可以用来指示到当前下行传输为止在同一个载波上调度的需要在同一个时域位置进行ACK/NACK反馈的下行传输的总数,或者,用于指示到当前下行传输为止在多个载波和/或TTI上调度的需要在同一个时域位置进行ACK/NACK反馈的下行传输的总数。通过DAI值的连续性,可以判断中间位置是否存在下行传输丢失,例如接收到第一个下行传输的DAI为1,第二下行传输的DAI为3,说明在接收到的第一和第二个下行传输之间丢失了一个下行传输,可以对此丢失的下行传输产生NACK作为反馈信息,并且可以推断出其DAI值为2,从而根据DAI值对这三个下行传输的ACK/NACK进行排序级联在一起,例如根据DAI升序顺序进行排序级联。另外,该DAI指示的总数可以不包括半持续调度(Semi-Persistent Scheduling,SPS)第一物理下行共享信道,或者说该总数仅累计指示下行SPS资源释放的第一物理下行控制信道以及有对应的第一物理下行控制信道的第一物理下行共享信道的个数。
例如,假设第二指示域为2比特信息,第二指示域的指示值如表3所示,如果对应同 一个上行位置进行ACK/NACK反馈信息传输的下行传输的个数不超过4,则可以采用一一对应的映射方式,当超过4个时,采用模4的多对一映射方式,如“00”可以指示1个或者5个或者9个。需要说明的是,此处仅是以第二指示域为2比特信息为例,对于第二指示域为其它比特信息的情况可参照表3的方式,此处不再赘述。
表3 第二指示域的指示值
第二指示域的状态 第二指示域的值 下行传输的个数
00 1 1或5或9
01 2 2或6
10 3 3或7
11 4 4或8
本申请实施例中,终端若确定所述时域位置与所述第一物理下行控制信道之间的时间差小于处理时延,或者,若确定所述时域位置与所述第一物理下行控制信道对应的第一物理下行共享信道之间的时间差小于处理时延,不反馈所述第一物理下行控制信道对应的ACK/NACK反馈信息,或者,在所述时域位置反馈NCK;否则,在所述时域位置反馈所述第一物理下行控制信道对应的ACK/NACK反馈信息。处理时延的定义同上,此处不再重复。
实施中,若所述第一物理下行控制信道有对应的第一物理下行共享信道(该情况包括动态调度的第一物理下行共享信道和SPS第一物理下行共享信道,如果是SPS第一物理下行共享信道,在该第一物理下行控制信道为用于激活该SPS第一物理下行共享信道传输的),则所述ACK/NACK反馈信息为所述第一物理下行共享信道的ACK/NACK反馈信息;和/或,若所述第一物理下行控制信道用于指示下行半持续调度SPS资源释放,所述ACK/NACK反馈信息为所述第一物理下行控制信道的ACK/NACK反馈信息。
需要说明的是,若所述第一物理下行控制信道用于指示下行半持续调度SPS资源激活,由所述第一物理下行控制信道激活的SPS第一物理下行共享信道每次传输的ACK/NACK反馈信息的时域位置,都根据所述第一物理下行控制信道的DCI中携带第一指示域来确定。
具体地,终端通过PUCCH或物理上行共享信道(Physical Uplink Shared Channel,PUSCH)在所述时域位置反馈所述第一物理下行控制信道对应的ACK/NACK反馈信息。PUCCH结构可以重用PUCCH format 4/5的映射和扩频方式,仅改变了时域传输长度和/或频域资源大小;当然也可以使用其他PUCCH format结构。
基于同一发明构思,本申请实施例中,如图3B所示,基站侧进行ACK/NACK反馈信息获取的详细方法流程如下:
步骤401:基站向终端发送第一物理下行控制信道,所述第一物理下行控制信道的下 行控制信息DCI中携带第一指示域,所述第一指示域用于确定ACK/NACK反馈信息的时域位置。
其中,关于第一指示域指示ACK/NACK反馈信息的时域位置的方式可参见步骤301至步骤302的相关描述,此处不再赘述。
步骤402:基站在根据所述第一指示域确定的ACK/NACK反馈信息的时域位置,接收所述终端反馈的所述第一物理下行控制信道或者与所述第一物理下行控制信道对应的第一物理下行共享信道的ACK/NACK反馈信息。
基站侧根据与终端侧相似的分析确定每个下行传输的ACK/NACK反馈信息所对应的时域位置,以及确定ACK/NACK反馈信息的排序方式,以与终端的操作一致,从而能够正确解析终端发送的ACK/NACK反馈信息,具体参见步骤301至步骤302的相关描述,此处不再赘述。
以下通过具体实施例对本申请实施例中ACK/NACK反馈的过程进行举例说明。
第一具体实施例
该具体实施中以使用常规循环前缀(Cyclic Prefix,CP)的一个FDD载波为例。
该具体实施例中,假设一个无线帧中的每个上行子帧中的最后一个符号可以用来传输ACK/NACK反馈信息,则一个无线帧中存在10个ACK/NACK反馈信息的时域位置。DCI中用于指示ACK/NACK反馈信息的时域位置的第一指示域占用的比特数为4,其中,第一指示域与所指示的ACK/NACK反馈信息的时域位置之间的对应关系如表4所示。
表4:DCI中的第一指示域与所指示的ACK/NACK反馈信息的时域位置之间的对应关系
第一指示域 第一指示域的值或时域位置索引 ACK/NACK反馈信息的时域位置
0000 1 子帧#0中的最后一个符号
0001 2 子帧#1中的最后一个符号
0010 3 子帧#2中的最后一个符号
0011 4 子帧#3中的最后一个符号
0100 5 子帧#4中的最后一个符号
0101 6 子帧#5中的最后一个符号
0110 7 子帧#6中的最后一个符号
0111 8 子帧#7中的最后一个符号
1000 9 子帧#8中的最后一个符号
1001 10 子帧#9中的最后一个符号
预留 预留 预留
该具体实施例中,如图4所示为根据DCI指示一个终端在不同子帧中占用不同资源的下行传输所对应的ACK/NACK反馈信息的传输时域位置的示意图。具体指示如下:
第一,在子帧#5中传输的第1个下行传输对应的物理下行控制信道的DCI1中的第一 指示域都为“0101”,在子帧#5中传输的第2个下行传输对应的物理下行控制信道的DCI2中的第一指示域也为“0101”,第一指示域所指示的子帧编号不小于该DCI传输所在的子帧编号,并且当前无线帧(即该DCI传输所在的无线帧,下同)中第一指示域所指示的子帧的最后一个符号满足反馈时延,则判定指示第1个和第2个下行传输的ACK/NACK反馈信息在当前无线帧中的子帧#5中的最后一个符号上传输。根据DCI1和DCI2中的下行分配索引(Downlink Assignment Index,DAI)指示域,对第1个和第2个下行传输所对应的ACK/NACK反馈信息进行排序,在确定的时域位置传输排序后得到的ACK/NACK序列。
第二,在子帧#5中传输的第3个下行传输对应的物理下行控制信道的DCI3的第一指示域都为“0110”,在子帧#5中传输的第4个下行传输对应的物理下行控制信道的DCI4中的第一指示域也为“0110”,第一指示域所指示的子帧编号不小于该DCI传输所在的子帧编号,并且在当前无线帧中第一指示域所指示的子帧中的最后一个符号满足反馈时延,则判定指示第3个和第4个下行传输的ACK/NACK反馈信息在当前无线帧中的子帧#6中的最后一个符号上传输;根据DCI3和DCI4中的DAI指示域,对第3个和第4个下行传输所对应的ACK/NACK反馈信息进行排序,在确定的时域位置传输排序后得到的ACK/NACK序列。
第三,在子帧#6中传输的第5个下行传输所对应的物理下行控制信道的DCI5中的第一指示域都为“1000”,在子帧#6中传输的第6个下行传输所对应的物理下行控制信道的DCI6中的第一指示域也为“1000”,第一指示域所指示的子帧编号不小于该DCI传输所在的子帧编号,并且在当前无线帧中第一指示域所指示的子帧中的最后一个符号满足反馈时延,则判定指示第5个和第6个下行传输的ACK/NACK反馈信息在当前无线帧中的子帧#8中的最后一个符号上传输;根据DCI5和DCI6中的DAI指示域,对第5个和第6个下行传输所对应的ACK/NACK反馈信息进行排序,在确定的时域位置传输排序后得到的ACK/NACK序列。
第四,在子帧#7中传输的第7个下行传输所对应的物理下行控制信道的DCI7中的第一指示域为“0000”,该第一指示域所指示的子帧编号小于该DCI传输所在的子帧编号,因此,判定指示该下行传输的ACK/NACK反馈信息在下一个无线帧(即该DCI传输所在的无线帧的下一个无线帧,下同)中的子帧#0中的最后一个符号上传输。
基站侧根据与第一~第四相似的分析确定每个下行传输的ACK/NACK反馈信息所对应的时域位置,以及确定ACK/NACK反馈信息的排序方式,以与终端的操作一致,从而能够正确解析终端发送的ACK/NACK反馈信息。
第二具体实施例
该具体实施中以使用常规CP的一个FDD载波为例。
该具体实施例中,假设一个无线帧中的每个编号为偶数的上行子帧中的最后一个符号 可以用来传输ACK/NACK反馈信息,则一个无线帧中存在5个ACK/NACK反馈信息的时域位置,DCI中用于指示ACK/NACK反馈信息的时域位置的第一指示域占用的比特数为3,其中,第一指示域与所指示的ACK/NACK反馈信息的时域位置之间的对应关系如表5所示。
表5:DCI中的第一指示域与所指示的ACK/NACK反馈信息的时域位置之间的对应关系
第一指示域 第一指示域的值或时域位置索引 ACK/NACK反馈信息的时域位置
000 1 子帧#0中的最后一个符号
001 2 子帧#2中的最后一个符号
010 3 子帧#4中的最后一个符号
011 4 子帧#6中的最后一个符号
100 5 子帧#8中的最后一个符号
101 预留 预留
110 预留 预留
111 预留 预留
该具体实施例中,如图5所示为根据DCI指示一个终端在不同子帧中占用不同资源的下行传输所对应的ACK/NACK反馈信息的传输时域位置的示意图。具体指示如下:
第一,在子帧#5中传输的第1个下行传输所对应的物理下行控制信道的DCI1,第2个下行传输所对应的物理下行控制信道的DCI2,第3个下行传输所对应的物理下行控制信道的DCI3以及第4个下行传输所对应的物理下行控制信道的DCI4中的第一指示域都为“011”,第一指示域所指示的子帧编号不小于该DCI传输所在的子帧编号,并且在当前无线帧中第一指示域所指示的子帧中的最后一个符号满足反馈时延,则判定指示该第1~4个下行传输的ACK/NACK在当前无线帧中的子帧#6中的最后一个符号上传输。根据DCI1、DCI2、DCI3、DCI4中的DAI指示域,对第1~4个下行传输所对应的ACK/NACK反馈信息进行排序,在所确定的时域位置传输排序后得到的ACK/NACK序列。
第二,在子帧#6中传输的第5个下行传输所对应的物理下行控制信道的DCI5,以及第6个下行传输所对应的物理下行控制信道的DCI6中的第一指示域都为“100”,第一指示域所指示的子帧编号不小于该DCI传输所在的子帧编号,并且在当前无线帧中第一指示域所指示的子帧中的最后一个符号满足反馈时延,则判定指示这两个下行传输的ACK/NACK在当前无线帧中的子帧#8中的最后一个符号上传输。根据DCI5和DCI6中的DAI指示域,对第5个和第6个下行传输所对应的ACK/NACK反馈信息进行排序,在所 确定的时域位置传输排序后得到的ACK/NACK序列。
第三,在子帧#7中传输的第7个下行传输所对应的物理下行控制信道的DCI7中的第一指示域为“000”,第一指示域所指示的子帧编号小于该DCI传输所在的子帧编号,因此,判定指示该下行传输的ACK/NACK反馈信息在下一个无线帧中的子帧#0中的最后一个符号上传输。
基站侧根据与第一~第三相似的分析确定每个下行传输的ACK/NACK反馈信息所对应的时域位置,以及确定ACK/NACK反馈信息的排序方式,以与终端的操作一致,从而能够正确解析终端发送的ACK/NACK反馈信息。
需要说明的是,对于其它定义部分子帧/符号/TTI的用来传输ACK/NACK的方式与第二具体实施例类型,不再赘述。
另外,可以将第一具体实施例和第二具体实施例中的第一指示域改为仅指示半个无线帧中的ACK/NACK反馈信息的时域位置。例如,第二具体实施例中进一步压缩DCI中的第一指示域为2比特,指示如表6所示的对应关系。
表6:DCI中的第一指示域与所指示的ACK/NACK反馈信息的时域位置之间的对应关系
第一指示域 第一指示域的值或时域位置索引 ACK/NACK反馈信息的时域位置
00 1 子帧#0(前半帧)或6(后半帧)中
01 2 子帧#2(前半帧)或8(后半帧)中
10 3 子帧#4中的最后一个符号
11 预留 预留
通过上述类似的子帧编号和处理时延关系判断所指示的ACK/NACK时域位置所对应的半帧为当前子帧中的前半帧还是后半帧,或者为后一个无线帧中的前半帧还是后半帧,如图6所示,具体为:
第四,在子帧#5中传输的第1个下行传输所对应的物理下行控制信道的DCI1,第2个下行传输所对应的物理下行控制信道的DCI2,第3个下行传输所对应的物理下行控制信道的DCI3以及第4个下行传输所对应的物理下行控制信道的DCI4中的第一指示域都为“00”,对应于子帧#0或#6中的最后一个符号,由于子帧#6的编号不小于该DCI传输所在的子帧编号,并且在当前无线帧中第一指示域所指示的子帧中的最后一个符号满足反馈时延,则判定指示这4下行传输的ACK/NACK在当前无线帧中的子帧#6中的最后一个符号上传输;根据DCI1、DCI2、DCI3、DCI4中的DAI指示域,为第1~4个下行传输所对应的ACK/NACK反馈信息排序,在所确定的时域位置传输排序后得到的ACK/NACK序列。
第五,在子帧#6中传输的第5个下行传输所对应的物理下行控制信道的DCI5,以及第6个下行传输所对应的物理下行控制信道的DCI6中的第一指示域都为“01”,对应于子帧#2或#8中的最后一个符号,由于子帧#8的编号不小于该DCI传输所在的子帧编号,并且在当前无线帧中第一指示域所指示的子帧中的最后一个符号满足反馈时延,则判定指示这两个下行传输的ACK/NACK在当前无线帧中的子帧#8中的最后一个符号上传输;根据DCI5和DCI6中的DAI指示域,对第5和第6个下行传输所对应的ACK/NACK反馈信息排序,在所确定的时域位置传输排序后得到的ACK/NACK序列。
第六,在子帧#7中传输的第7个下行传输所对应的物理下行控制信道的DCI7中的第一指示域为“00”,对应于子帧#0或#6中的最后一个符号,由于子帧#0和#6的编号都小于该DCI传输所在的子帧编号,则判定需要在下一个无线帧中传输其ACK/NACK反馈信息,而下一个无线帧中的子帧#0的最后一个符号是最近的满足反馈时延的位置,则判定指示该下行传输的ACK/NACK在下一个无线帧中的子帧#0中的最后一个符号上传输。
基站侧根据与第四~第六相似的分析确定每个下行传输的ACK/NACK反馈信息所对应的时域位置,以及确定ACK/NACK反馈信息的排序方式,以与终端的操作一致,从而能够正确解析终端发送的ACK/NACK反馈信息。
第三具体实施例
该具体实施中以使用常规CP的一个使用TDD上下行配置1的TDD载波为例。假设TDD特殊子帧配置为配置7(即DwPTS包含10个符号,GP为2个符号,UpPTS包含2个符号),假设一个无线帧中的每个上行子帧(包括UpPTS)中的最后一个符号可以用来传输ACK/NACK反馈信息,则一个无线帧中存在6个ACK/NACK反馈信息的时域位置,即子帧#1/2/3/6/7/8,DCI中用于指示ACK/NACK反馈信息的时域位置的第一指示域占用的比特数为3,其中,第一指示域与所指示的ACK/NACK反馈信息的时域位置之间的对应关系如表7所示。
表7:DCI中的第一指示域与所指示的ACK/NACK反馈信息的时域位置之间的对应关系
第一指示域的状态 第一指示域的值或时域位置索引 ACK/NACK反馈信息的时域位置
000 1 子帧#1中的最后一个符号
001 2 子帧#2中的最后一个符号
010 3 子帧#3中的最后一个符号
011 4 子帧#6中的最后一个符号
100 5 子帧#7中的最后一个符号
101 6 子帧#8中的最后一个符号
110 预留 预留
111 预留 预留
该具体实施例中,如图7所示为根据DCI指示一个终端在不同子帧中占用不同资源的下行传输所对应的ACK/NACK反馈信息的传输时域位置的示意图。具体指示如下:
第一,在子帧#9中传输的第1个下行传输所对应的物理下行控制信道的DCI1中的第一指示域为“001”,第一指示域所指示的子帧编号小于该DCI传输所在的子帧编号,则判定指示该下行传输的ACK/NACK在下一个无线帧中的子帧#2中的最后一个符号上传输。在子帧#0中传输的第2个下行传输所对应的物理下行控制信道的DCI2中的第一指示域也为“001”,第一指示域所指示的子帧编号不小于该DCI传输所在的子帧编号,并且在当前无线帧中第一指示域所指示的子帧中的最后一个符号满足反馈时延,则判断指示该下行传输的ACK/NACK在当前无线帧中的子帧#2中的最后一个符号上传输,即与第一个下行传输的ACK/NACK在同一个位置传输。根据DCI1和DCI2中的DAI指示域,对第1个和第2个下行传输所对应的ACK/NACK反馈信息进行排序,在所确定的时域位置传输排序后得到的ACK/NACK序列。
第二,在子帧#0中传输的第3个下行传输所对应的物理下行控制信道的DCI3中,以及在子帧#0中传输的第4个下行传输所对应的物理下行控制信道的DCI4中的第一指示域都为“000”,该第一指示域所指示的子帧编号不小于该DCI传输所在的子帧编号,并在当前无线帧中第一指示域所指示的子帧中的最后一个符号满足反馈时延,则判定指示这两个下行传输的ACK/NACK都在当前无线帧中的子帧#1中的最后一个符号上传输;根据DCI3和DCI4中的DAI指示域,对第3和第4个下行传输所对应的ACK/NACK反馈信息进行排序,在所确定的时域位置传输排序后得到的ACK/NACK序列。
第三,在子帧#1中传输的第5个下行传输所对应的物理下行控制信道的DCI5中的第一指示域为“010”,该第一指示域所指示的子帧编号不小于该DCI传输所在的子帧编号,并且在当前无线帧中第一指示域所指示的子帧中的最后一个符号满足反馈时延,则判定指示该下行传输的ACK/NACK在当前无线帧中的子帧#3中的最后一个符号上传输。
基站侧根据与第一~第三相似的分析确定每个下行传输的ACK/NACK反馈信息所对应的时域位置,以及确定ACK/NACK反馈信息的排序方式,以与终端的操作一致,从而能够正确解析终端发送的ACK/NACK反馈信息。
第四具体实施例
该具体实施例中,以使用常规CP的一个使用TDD上下行配置1的TDD载波为例。假设TDD特殊子帧配置为配置7(即DwPTS包含10个符号,GP为2个符号,UpPTS包含2个符号),假设一个无线帧中的仅上行子帧#2和3中的最后一个符号可以用来传输 ACK/NACK反馈信息,则一个无线帧中存在4个ACK/NACK反馈信息的时域位置,即子帧#2/3/7/8,DCI中用于指示ACK/NACK反馈信息的时域位置的第一指示域占用的比特数为2,其中,第一指示域与所指示的ACK/NACK反馈信息的时域位置之间的对应关系如表8所示。
表8:DCI中的第一指示域与所指示的ACK/NACK反馈信息的时域位置之间的对应关系
第一指示域状态 第一指示域的值或时域位置索引 ACK/NACK反馈信息的时域位置
00 1 子帧#2中的最后一个符号
01 2 子帧#3中的最后一个符号
10 3 子帧#7中的最后一个符号
11 4 子帧#8中的最后一个符号
该具体实施例中,如图8所示为根据DCI指示一个终端在不同子帧中占用不同资源的下行传输所对应的ACK/NACK反馈信息的传输时域位置的示意图。具体指示如下:
第一,在子帧#9中传输的第1个下行传输所对应的物理下行控制信道的DCI1中的第一指示域为“00”,该第一指示域所指示的子帧编号小于该DCI传输所在的子帧编号,则判定指示该下行传输的ACK/NACK在下一个无线帧中的子帧#2中的最后一个符号上传输。在子帧#0中传输的第2个下行传输所对应的物理下行控制信道的DCI2中,以及第3个下行传输所对应的物理下行控制信道的DCI3中的第一指示域也为“00”,该第一指示域所指示的子帧编号不小于该DCI传输所在的子帧编号,并且在当前无线帧中第一指示域所指示的子帧中的最后一个符号满足反馈时延,则判定指示这两个下行传输的ACK/NACK在当前无线帧中的子帧#2中的最后一个符号上传输,即与第一个下行传输的ACK/NACK在同一个位置传输。根据DCI1、DCI2和DCI3中的DAI指示域,对第1、2、3个下行传输所对应的ACK/NACK信息进行排序,在所确定的时域位置传输排序后得到的ACK/NACK序列。
第二,在子帧#0中传输的第4个下行传输所对应的物理下行控制信道的DCI4中的第一指示域为“01”,该第一指示域指示的子帧编号不小于该DCI传输所在的子帧编号,并且在当前无线帧中第一指示域所指示的子帧中的最后一个符号满足反馈时延,则判定指示该下行传输的ACK/NACK在子帧#3中的最后一个符号上传输。在子帧#1中传输的第5个下行传输所对应的物理下行控制信道的DCI5中的第一指示域也为“01”,该第一指示域指示的子帧编号不小于该DCI传输所在的子帧编号,并且在当前无线帧中第一指示域所指示的子帧中的最后一个符号满足反馈时延,则判定指示该下行传输的ACK/NACK也在子帧#3 中的最后一个符号上传输,即与第4个下行传输的ACK/NACK在同一个位置传输;根据DCI4和DCI5中的DAI指示域,对第4和第5个下行传输所对应的ACK/NACK反馈信息进行排序,在所确定的位置传输排序后得到的ACK/NACK序列。
基站侧根据与第一~第二相似的分析确定每个下行传输的ACK/NACK反馈信息所对应的时域位置,以及确定ACK/NACK反馈信息的排序方式,以与终端的操作一致,从而能够正确解析终端发送的ACK/NACK反馈信息。
需要说明的是,对于其它定义部分子帧/符号/TTI的用来传输ACK/NACK的方式与第四具体实施例类型,不再赘述。
另外,可以将第三具体实施例和第四具体实施例中的第一指示域改为仅指示半个无线帧中的ACK/NACK反馈信息的时域位置。例如,第四具体实施例中进一步压缩DCI中的第一指示域为1比特,指示如表9所示的对应关系。
表9:DCI中的第一指示域与所指示的ACK/NACK反馈信息的时域位置之间的对应关系
Figure PCTCN2017075354-appb-000018
通过上述类似的子帧编号和处理时延关系判断所指示的ACK/NACK时域位置所对应的半帧为当前子帧中的前半帧还是后半帧,或者为后一个无线帧中的前半帧还是后半帧,如图9所示,具体为:
第三,在子帧#9中传输的第1个下行传输所对应的物理下行控制信道的DCI1中的第一指示域为“0”,对应于子帧#2或#7中的最后一个符号,由于子帧#2和#7的编号都小于该DCI传输所在的子帧编号,则判定该下行传输的ACK/NACK在下一个无线帧中传输,由于在下一个无线帧中子帧#2的最后一个符号为最近一个满足反馈时延的时域位置,则判定指示该下行传输的ACK/NACK在下一个无线帧中的子帧#2中的最后一个符号上传输。在子帧#0中传输的第2个下行传输所对应的物理下行控制信道的DCI2中,以及第3个下行传输所对应的物理下行控制信道的DCI3中的第一指示域也为“0”,对应于子帧#2或#7中的最后一个符号,第一指示域所指示的子帧编号不小于该DCI传输所在的子帧编号,并且在当前无线帧中第一指示域所指示的子帧#2中的最后一个符号为最近的满足反馈时延的时域位置,则判定指示这两个下行传输的ACK/NACK在当前无线帧中的子帧#2中的最后一个符号上传输,即与第1个下行传输的ACK/NACK在同一个位置传输。根据DCI1、DCI2 和DCI3中的DAI指示域,对第1、2、3个下行传输所对应的ACK/NACK信息进行排序,在所确定的时域位置传输排序后得到的ACK/NACK序列。
第四,在子帧#0中传输的第4个下行传输所对应的物理下行控制信道的DCI4中的第一指示域为“1”,对应于子帧#3或#8中的最后一个符号,该第一指示域所指示的子帧编号不小于该DCI传输所在的子帧编号,并且在当前无线帧中第一指示域所指示的子帧#3中的最后一个符号为最近的满足反馈时延的时域位置,则判定指示该下行传输的ACK/NACK在子帧#3中的最后一个符号上传输。在子帧#1中传输的第5个下行传输所对应的物理下行控制信道的DCI5中的第一指示域也为“1”,对应于子帧#3或#8中的最后一个符号,该第一指示域所指示的子帧编号不小于该DCI传输所在的子帧编号,并且在当前无线帧中所第一指示域所指示的子帧#3中的最后一个符号为最近的满足反馈时延的时域位置,则判定指示该下行传输的ACK/NACK也在子帧#3中的最后一个符号上传输,即与第4个下行传输的ACK/NACK在同一个位置传输。根据DCI4和DCI5中的DAI指示域,对第4个和第5个下行传输所对应的ACK/NACK反馈信息进行排序,在所确定的时域位置传输排序后得到的ACK/NACK序列。
基站侧根据与第三~第四相似的分析确定每个下行传输的ACK/NACK反馈信息所对应的时域位置,以及确定ACK/NACK反馈信息的排序方式,以与终端的操作一致,从而能够正确解析终端发送的ACK/NACK反馈信息。
需要说明的是,以上各实施例中,ACK/NACK反馈信息传输时仅以占用一个符号长度为例,不排除ACK/NACK传输时可以占用超过1个符号传输,例如2、3、4、5、7个符号或者1ms(12或14个符号),又例如占用一个或多个微时隙传输,或占用一个或多个TTI传输,或占用一个或多个时隙传输,或占用一个或多个子帧传输,此时,可以使用类似方式获得ACK/NACK反馈信息的时域位置。以上各第一指示域与ACK/NACK时域位置的映射表格中仅以子帧和符号位置为例,不排除其他子帧/符号/TTI/时隙/微时隙编号的组合方式指示ACK/NACK时域资源。以上各实施例中仅以一个载波为例,当载波聚合时,每个载波可以采用类似的方式确定,只不过对于SCC,其DCI的第一指示域所指示的ACK/NACK时域资源在可以传输ACK/NACK的载波上(例如PCC或一个可以承载ACK/NACK的SCC),当多个载波上的下行传输的ACK/NACK需要在同一个时域资源上传输时,将多个载波的ACK/NACK级联在一起,在同一个信道中同时传输。
基于以上技术方案,本申请实施例中通过物理下行控制信道通知ACK/NACK反馈信息传输的时域位置,实现eNB在尽可能减少反馈时延的同时可灵活控制ACK/NACK负载在不同上行传输资源上的均衡,提升系统性能。
基于同一发明构思,本申请实施例中提供了一种终端,该终端的具体实施可参见方法实施例部分的描述,重复之处不再赘述,如图10所示,该终端主要包括:
接收模块1001,用于接收第一物理下行控制信道,所述第一物理下行控制信道的下行控制信息DCI中携带第一指示域,所述第一指示域用于确定ACK/NACK反馈信息的时域位置;
反馈模块1002,用于根据所述第一指示域确定所述第一物理下行控制信道或者与所述第一物理下行控制信道对应的第一物理下行共享信道的ACK/NACK反馈信息的时域位置,并在所述ACK/NACK反馈信息的时域位置,传输所述ACK/NACK反馈信息。
可选地,所述第一指示域具体用于指示K个能够用于传输ACK/NACK反馈信息的时域位置,所述K为正整数。
可选地,所述第一指示域包含P个比特的信息,所述
Figure PCTCN2017075354-appb-000019
其中,
Figure PCTCN2017075354-appb-000020
表示向上取整。
可选地,所述第一指示域用于指示传输所述ACK/NACK反馈信息的时域位置所在的无线帧或半帧或子帧或时隙或TTI或微时隙或符号的位置。
可选地,所述反馈模块还用于:
根据第一TTI长度和/或第二TTI长度确定所述第一指示域所指示的ACK/NACK反馈信息的时域位置所在的无线帧或半帧或子帧或时隙或微时隙或符号的位置,其中,所述第一TTI长度为所述第一物理下行控制信道和/或与所述第一物理下行控制信道对应的第一物理下行共享信道的TTI长度,所述第二TTI长度为预先配置或约定的用于确定ACK/NACK反馈信息的时域位置的TTI长度。
可选地,所述反馈模块还用于:
根据所述第一物理下行控制信道传输所在的子帧编号和/或TTI编号和/或符号编号和/或时隙编号和/或微时隙编号,与所述第一指示域所指示的ACK/NACK反馈信息的时域位置的子帧编号和/或TTI编号和/或符号编号和/或时隙编号和/或微时隙编号的大小或前后顺序,确定所述第一指示域所指示的ACK/NACK反馈信息的时域位置所在的无线帧或半帧或子帧或TTI或时隙或微时隙或符号的位置。
可选地,所述ACK/NACK反馈信息的时域位置为以下方式之一或者其组合:
所述ACK/NACK反馈信息的时域位置所在的无线帧为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的无线帧,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的无线帧之后的第n1个无线帧,其中,所述n1为正整数;
所述ACK/NACK反馈信息的时域位置所在的半帧为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的半帧,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道 传输所在的半帧之后的第n2个半帧,其中,所述n2为正整数;
所述ACK/NACK反馈信息的时域位置所在的子帧为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的子帧,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的子帧之后的第n3个子帧,其中,所述n3为正整数;
所述ACK/NACK反馈信息的时域位置所在的时隙为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的时隙,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的时隙之后的第n4个时隙,其中,所述n4为正整数;
所述ACK/NACK反馈信息的时域位置所在的微时隙为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的微时隙,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的微时隙之后的第n5个微时隙,其中,所述n5为正整数;
所述ACK/NACK反馈信息的时域位置所在的TTI为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的TTI,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的TTI之后的第n6个TTI,其中,所述n6为正整数;
所述ACK/NACK反馈信息的时域位置所在的符号为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的符号,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的符号之后的第n7个符号,其中,所述n7为正整数。
可选地,所述第一指示域指示所述ACK/NACK反馈信息传输所需占用的第一个符号的位置,所述ACK/NACK反馈信息占用以所述第一个符号为起点的连续A个上行符号,所述A为正整数;或者,
所述第一指示域指示所述ACK/NACK反馈信息传输所需占用的第一个TTI的位置,所述ACK/NACK反馈信息占用以所述第一个TTI为起点的连续A个上行TTI;或者,
所述第一指示域指示所述ACK/NACK反馈信息传输所需占用的第一个时隙的位置,所述ACK/NACK反馈信息占用以所述第一个时隙为起点的连续A个时隙;或者,
所述第一指示域指示所述ACK/NACK反馈信息传输所需占用的第一个微时隙的位置,所述ACK/NACK反馈信息占用以所述第一个微时隙为起点的连续A个微时隙;或者,
所述第一指示域指示所述ACK/NACK反馈信息传输所需占用的第一个子帧的位置,所述ACK/NACK反馈信息占用以所述第一个子帧为起点的连续A个子帧。
可选地,所述反馈模块具体用于:
若所述终端根据多个所述第一物理下行控制信道的第一指示域分别确定的ACK/NACK反馈信息的时域位置相同,按照所述多个所述第一物理下行控制信道中的DCI中的下行分配索引DAI指示域,将所述多个所述第一物理下行控制信道中的每个第一物理下行控制信道或与每个第一物理下行控制信道所对应的第一物理下行共享信道的ACK/NACK反馈信息级联后,在所述ACK/NACK反馈信息的时域位置传输。
可选地,所述时域位置为以下任意一种:
子帧编号和/或符号编号和/或TTI编号和/或时隙编号和/或微时隙编号。
基于同一发明构思,本申请实施例中提供了一种基站,该基站的具体实施可参见方法实施例部分的描述,重复之处不再赘述,如图11所示,该基站主要包括:
发送模块1101,用于向终端发送第一物理下行控制信道,所述第一物理下行控制信道的下行控制信息DCI中携带第一指示域,所述第一指示域用于确定ACK/NACK反馈信息的时域位置;
接收模块1102,用于在根据所述第一指示域确定的ACK/NACK反馈信息的时域位置,接收所述终端反馈的所述第一物理下行控制信道或者与所述第一物理下行控制信道对应的第一物理下行共享信道的ACK/NACK反馈信息。
可选地,所述第一指示域具体用于指示K个能够用于传输ACK/NACK反馈信息的时域位置,所述K为正整数。
可选地,所述第一指示域包含P个比特的信息,所述
Figure PCTCN2017075354-appb-000021
其中,
Figure PCTCN2017075354-appb-000022
表示向上取整。
可选地,所述第一指示域用于指示传输所述ACK/NACK反馈信息的时域位置所在的无线帧或半帧或子帧或时隙或TTI或微时隙或符号的位置。
可选地,还包括处理模块1103,用于:
根据第一TTI长度和/或第二TTI长度确定所述第一指示域所指示的ACK/NACK反馈信息的时域位置所在的无线帧或半帧或子帧或时隙或微时隙或符号的位置,其中,所述第一TTI长度为所述第一物理下行控制信道和/或与所述第一物理下行控制信道对应的第一物理下行共享信道的TTI长度,所述第二TTI长度为预先配置或约定的用于确定ACK/NACK反馈信息的时域位置的TTI长度。
可选地,还包括处理模块,用于:
根据所述第一物理下行控制信道传输所在的子帧编号和/或TTI编号和/或符号编号和/或时隙编号和/或微时隙编号,与所述第一指示域所指示的ACK/NACK反馈信息的时域位置的子帧编号和/或TTI编号和/或符号编号和/或时隙编号和/或微时隙编号的大小或前后顺序,确定所述第一指示域所指示的ACK/NACK反馈信息的时域位置所在的无线帧或半帧 或子帧或TTI或时隙或微时隙或符号的位置。
可选地,所述ACK/NACK反馈信息的时域位置为以下方式之一或者其组合:
所述ACK/NACK反馈信息的时域位置所在的无线帧为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的无线帧,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的无线帧之后的第n1个无线帧,其中,所述n1为正整数;
所述ACK/NACK反馈信息的时域位置所在的半帧为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的半帧,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的半帧之后的第n2个半帧,其中,所述n2为正整数;
所述ACK/NACK反馈信息的时域位置所在的子帧为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的子帧,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的子帧之后的第n3个子帧,其中,所述n3为正整数;
所述ACK/NACK反馈信息的时域位置所在的时隙为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的时隙,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的时隙之后的第n4个时隙,其中,所述n4为正整数;
所述ACK/NACK反馈信息的时域位置所在的微时隙为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的微时隙,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的微时隙之后的第n5个微时隙,其中,所述n5为正整数;
所述ACK/NACK反馈信息的时域位置所在的TTI为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的TTI,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的TTI之后的第n6个TTI,其中,所述n6为正整数;
所述ACK/NACK反馈信息的时域位置所在的符号为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的符号,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的符号之后的第n7个符号,其中,所述n7为正整数。
可选地,所述第一指示域指示所述ACK/NACK反馈信息传输所需占用的第一个符号的位置,所述ACK/NACK反馈信息占用以所述第一个符号为起点的连续A个上行符号,所述A为正整数;或者,
所述第一指示域指示所述ACK/NACK反馈信息传输所需占用的第一个TTI的位置,所述ACK/NACK反馈信息占用以所述第一个TTI为起点的连续A个上行TTI;或者,
所述第一指示域指示所述ACK/NACK反馈信息传输所需占用的第一个时隙的位置,所述ACK/NACK反馈信息占用以所述第一个时隙为起点的连续A个时隙;或者,
所述第一指示域指示所述ACK/NACK反馈信息传输所需占用的第一个微时隙的位置,所述ACK/NACK反馈信息占用以所述第一个微时隙为起点的连续A个微时隙;或者,
所述第一指示域指示所述ACK/NACK反馈信息传输所需占用的第一个子帧的位置,所述ACK/NACK反馈信息占用以所述第一个子帧为起点的连续A个子帧。
可选地,还包括处理模块,用于:
若所述基站确定所述终端的多个所述第一物理下行控制信道的第一指示域所指示的ACK/NACK反馈信息的时域位置相同,按照所述多个所述第一物理下行控制信道中的DCI中的下行分配索引DAI指示域,确定所述多个所述第一物理下行控制信道中的每个第一物理下行控制信道或与每个第一物理下行控制信道所对应的第一物理下行共享信道的ACK/NACK反馈信息的级联顺序,根据确定的所述级联顺序解析在所述时域位置接收到的ACK/NACK反馈信息。
可选地,所述时域位置为以下任意一种:
子帧编号和/或符号编号和/或TTI编号和/或时隙编号和/或微时隙编号。
基于同一发明构思,本申请实施例中还提供了另一种终端,该终端的具体实施可参见方法实施例部分的描述,重复之处不再赘述,如图12所示,该终端主要包括处理器1201、存储器1202和收发机1203,其中,收发机1203用于在处理器1201的控制下接收和发送数据,存储器1202中保存有预设的程序,处理器1201读取存储器1202中保存的程序,按照该程序执行以下过程:
通过收发机1203接收第一物理下行控制信道,所述第一物理下行控制信道的下行控制信息DCI中携带第一指示域,所述第一指示域用于确定ACK/NACK反馈信息的时域位置;
根据所述第一指示域确定所述第一物理下行控制信道或者与所述第一物理下行控制信道对应的第一物理下行共享信道的ACK/NACK反馈信息的时域位置,并指示收发机1203在所述ACK/NACK反馈信息的时域位置,传输所述ACK/NACK反馈信息。
可选地,所述第一指示域具体用于指示K个能够用于传输ACK/NACK反馈信息的时域位置,所述K为正整数。
可选地,所述第一指示域包含P个比特的信息,所述
Figure PCTCN2017075354-appb-000023
其中,
Figure PCTCN2017075354-appb-000024
表示向上取整。
可选地,所述第一指示域用于指示传输所述ACK/NACK反馈信息的时域位置所在的无线帧或半帧或子帧或时隙或TTI或微时隙或符号的位置。
可选地,处理器还用于:
根据第一TTI长度和/或第二TTI长度确定所述第一指示域所指示的ACK/NACK反馈信息的时域位置所在的无线帧或半帧或子帧或时隙或微时隙或符号的位置,其中,所述第一TTI长度为所述第一物理下行控制信道和/或与所述第一物理下行控制信道对应的第一物理下行共享信道的TTI长度,所述第二TTI长度为预先配置或约定的用于确定ACK/NACK反馈信息的时域位置的TTI长度。
可选地,处理器还用于:
根据所述第一物理下行控制信道传输所在的子帧编号和/或TTI编号和/或符号编号和/或时隙编号和/或微时隙编号,与所述第一指示域所指示的ACK/NACK反馈信息的时域位置的子帧编号和/或TTI编号和/或符号编号和/或时隙编号和/或微时隙编号的大小或前后顺序,确定所述第一指示域所指示的ACK/NACK反馈信息的时域位置所在的无线帧或半帧或子帧或TTI或时隙或微时隙或符号的位置。
可选地,所述ACK/NACK反馈信息的时域位置为以下方式之一或者其组合:
所述ACK/NACK反馈信息的时域位置所在的无线帧为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的无线帧,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的无线帧之后的第n1个无线帧,其中,所述n1为正整数;
所述ACK/NACK反馈信息的时域位置所在的半帧为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的半帧,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的半帧之后的第n2个半帧,其中,所述n2为正整数;
所述ACK/NACK反馈信息的时域位置所在的子帧为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的子帧,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的子帧之后的第n3个子帧,其中,所述n3为正整数;
所述ACK/NACK反馈信息的时域位置所在的时隙为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的时隙,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的时隙之后的第n4个时隙,其中,所述n4为正整数;
所述ACK/NACK反馈信息的时域位置所在的微时隙为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的微时隙,或者 所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的微时隙之后的第n5个微时隙,其中,所述n5为正整数;
所述ACK/NACK反馈信息的时域位置所在的TTI为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的TTI,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的TTI之后的第n6个TTI,其中,所述n6为正整数;
所述ACK/NACK反馈信息的时域位置所在的符号为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的符号,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的符号之后的第n7个符号,其中,所述n7为正整数。
可选地,所述第一指示域指示所述ACK/NACK反馈信息传输所需占用的第一个符号的位置,所述ACK/NACK反馈信息占用以所述第一个符号为起点的连续A个上行符号,所述A为正整数;或者,
所述第一指示域指示所述ACK/NACK反馈信息传输所需占用的第一个TTI的位置,所述ACK/NACK反馈信息占用以所述第一个TTI为起点的连续A个上行TTI;或者,
所述第一指示域指示所述ACK/NACK反馈信息传输所需占用的第一个时隙的位置,所述ACK/NACK反馈信息占用以所述第一个时隙为起点的连续A个时隙;或者,
所述第一指示域指示所述ACK/NACK反馈信息传输所需占用的第一个微时隙的位置,所述ACK/NACK反馈信息占用以所述第一个微时隙为起点的连续A个微时隙;或者,
所述第一指示域指示所述ACK/NACK反馈信息传输所需占用的第一个子帧的位置,所述ACK/NACK反馈信息占用以所述第一个子帧为起点的连续A个子帧。
可选地,处理器具体用于:
若所述终端根据多个所述第一物理下行控制信道的第一指示域分别确定的ACK/NACK反馈信息的时域位置相同,按照所述多个所述第一物理下行控制信道中的DCI中的下行分配索引DAI指示域,将所述多个所述第一物理下行控制信道中的每个第一物理下行控制信道或与每个第一物理下行控制信道所对应的第一物理下行共享信道的ACK/NACK反馈信息级联后,在所述ACK/NACK反馈信息的时域位置传输。
可选地,所述时域位置为以下任意一种:
子帧编号和/或符号编号和/或TTI编号和/或时隙编号和/或微时隙编号。
其中,处理器、存储器和收发机之间通过总线连接,总线架构可以包括任意数量的互联的总线和桥,具体由处理器代表的一个或多个处理器和存储器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。收发机可以是多个元件,即包括发送机和收发机,提供用于在传输介质上与各种其他装置通信的单元。处理器负责管理总线架构和通常的处理,存储器可以存储处理器在执行操作时所使用的数据。
基于同一发明构思,本申请实施例中还提供了另一种基站,该基站的具体实施可参见方法实施例部分的描述,重复之处不再赘述,如图13所示,该基站主要包括处理器1301、存储器1302和收发机1303,其中,收发机1303用于在处理器1301的控制下接收和发送数据,存储器1302中保存有预设的程序,处理器1301读取存储器1302中保存的程序,按照该程序执行以下过程:
通过收发机1303向终端发送第一物理下行控制信道,所述第一物理下行控制信道的下行控制信息DCI中携带第一指示域,所述第一指示域用于确定ACK/NACK反馈信息的时域位置;
指示收发机1303在根据所述第一指示域确定的ACK/NACK反馈信息的时域位置,接收所述终端反馈的所述第一物理下行控制信道或者与所述第一物理下行控制信道对应的第一物理下行共享信道的ACK/NACK反馈信息。
可选地,所述第一指示域具体用于指示K个能够用于传输ACK/NACK反馈信息的时域位置,所述K为正整数。
可选地,所述第一指示域包含P个比特的信息,所述
Figure PCTCN2017075354-appb-000025
其中,
Figure PCTCN2017075354-appb-000026
表示向上取整。
可选地,所述第一指示域用于指示传输所述ACK/NACK反馈信息的时域位置所在的无线帧或半帧或子帧或时隙或TTI或微时隙或符号的位置。
可选地,处理器还用于:
根据第一TTI长度和/或第二TTI长度确定所述第一指示域所指示的ACK/NACK反馈信息的时域位置所在的无线帧或半帧或子帧或时隙或微时隙或符号的位置,其中,所述第一TTI长度为所述第一物理下行控制信道和/或与所述第一物理下行控制信道对应的第一物理下行共享信道的TTI长度,所述第二TTI长度为预先配置或约定的用于确定ACK/NACK反馈信息的时域位置的TTI长度。
可选地,处理器还用于:
根据所述第一物理下行控制信道传输所在的子帧编号和/或TTI编号和/或符号编号和/或时隙编号和/或微时隙编号,与所述第一指示域所指示的ACK/NACK反馈信息的时域位置的子帧编号和/或TTI编号和/或符号编号和/或时隙编号和/或微时隙编号的大小或前后顺序,确定所述第一指示域所指示的ACK/NACK反馈信息的时域位置所在的无线帧或半帧或子帧或TTI或时隙或微时隙或符号的位置。
可选地,所述ACK/NACK反馈信息的时域位置为以下方式之一或者其组合:
所述ACK/NACK反馈信息的时域位置所在的无线帧为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的无线帧,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的无线帧之后的第n1个无线帧,其中,所述n1为正整数;
所述ACK/NACK反馈信息的时域位置所在的半帧为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的半帧,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的半帧之后的第n2个半帧,其中,所述n2为正整数;
所述ACK/NACK反馈信息的时域位置所在的子帧为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的子帧,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的子帧之后的第n3个子帧,其中,所述n3为正整数;
所述ACK/NACK反馈信息的时域位置所在的时隙为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的时隙,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的时隙之后的第n4个时隙,其中,所述n4为正整数;
所述ACK/NACK反馈信息的时域位置所在的微时隙为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的微时隙,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的微时隙之后的第n5个微时隙,其中,所述n5为正整数;
所述ACK/NACK反馈信息的时域位置所在的TTI为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的TTI,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的TTI之后的第n6个TTI,其中,所述n6为正整数;
所述ACK/NACK反馈信息的时域位置所在的符号为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的符号,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的符号之后的第n7个符号,其中,所述n7为正整数。
可选地,所述第一指示域指示所述ACK/NACK反馈信息传输所需占用的第一个符号的位置,所述ACK/NACK反馈信息占用以所述第一个符号为起点的连续A个上行符号,所述A为正整数;或者,
所述第一指示域指示所述ACK/NACK反馈信息传输所需占用的第一个TTI的位置, 所述ACK/NACK反馈信息占用以所述第一个TTI为起点的连续A个上行TTI;或者,
所述第一指示域指示所述ACK/NACK反馈信息传输所需占用的第一个时隙的位置,所述ACK/NACK反馈信息占用以所述第一个时隙为起点的连续A个时隙;或者,
所述第一指示域指示所述ACK/NACK反馈信息传输所需占用的第一个微时隙的位置,所述ACK/NACK反馈信息占用以所述第一个微时隙为起点的连续A个微时隙;或者,
所述第一指示域指示所述ACK/NACK反馈信息传输所需占用的第一个子帧的位置,所述ACK/NACK反馈信息占用以所述第一个子帧为起点的连续A个子帧。
可选地,处理器还用于:
若所述基站确定所述终端的多个所述第一物理下行控制信道的第一指示域所指示的ACK/NACK反馈信息的时域位置相同,按照所述多个所述第一物理下行控制信道中的DCI中的下行分配索引DAI指示域,确定所述多个所述第一物理下行控制信道中的每个第一物理下行控制信道或与每个第一物理下行控制信道所对应的第一物理下行共享信道的ACK/NACK反馈信息的级联顺序,根据确定的所述级联顺序解析在所述时域位置接收到的ACK/NACK反馈信息。
可选地,所述时域位置为以下任意一种:
子帧编号和/或符号编号和/或TTI编号和/或时隙编号和/或微时隙编号。
其中,处理器、存储器和收发机之间通过总线连接,总线架构可以包括任意数量的互联的总线和桥,具体由处理器代表的一个或多个处理器和存储器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。收发机可以是多个元件,即包括发送机和收发机,提供用于在传输介质上与各种其他装置通信的单元。处理器负责管理总线架构和通常的处理,存储器可以存储处理器在执行操作时所使用的数据。
本领域内的技术人员应明白,本申请的实施例可提供为方法、系统、或计算机程序产品。因此,本申请可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且,本申请可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器和光学存储器等)上实施的计算机程序产品的形式。
本申请是参照根据本申请实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器,使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用 于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中,使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品,该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上,使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理,从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
显然,本领域的技术人员可以对本申请进行各种改动和变型而不脱离本申请的精神和范围。这样,倘若本申请的这些修改和变型属于本申请权利要求及其等同技术的范围之内,则本申请也意图包含这些改动和变型在内。

Claims (42)

  1. 一种ACK/NACK反馈方法,其特征在于,包括:
    终端接收第一物理下行控制信道,所述第一物理下行控制信道的下行控制信息DCI中携带第一指示域,所述第一指示域用于确定ACK/NACK反馈信息的时域位置;
    所述终端根据所述第一指示域确定所述第一物理下行控制信道或者与所述第一物理下行控制信道对应的第一物理下行共享信道的ACK/NACK反馈信息的时域位置,并在所述ACK/NACK反馈信息的时域位置,传输所述ACK/NACK反馈信息。
  2. 如权利要求1所述的方法,其特征在于,所述第一指示域具体用于指示K个能够用于传输ACK/NACK反馈信息的时域位置,所述K为正整数。
  3. 如权利要求2所述的方法,其特征在于,所述第一指示域包含P个比特的信息,所述
    Figure PCTCN2017075354-appb-100001
    其中,
    Figure PCTCN2017075354-appb-100002
    表示向上取整。
  4. 如权利要求1所述的方法,其特征在于,所述第一指示域用于指示传输所述ACK/NACK反馈信息的时域位置所在的无线帧或半帧或子帧或时隙或发送时间间隔TTI或微时隙或符号的位置。
  5. 如权利要求1所述的方法,其特征在于,所述方法还包括:
    所述终端根据第一TTI长度和/或第二TTI长度确定所述第一指示域所指示的ACK/NACK反馈信息的时域位置所在的无线帧或半帧或子帧或时隙或微时隙或符号的位置,其中,所述第一TTI长度为所述第一物理下行控制信道和/或与所述第一物理下行控制信道对应的第一物理下行共享信道的TTI长度,所述第二TTI长度为预先配置或约定的用于确定ACK/NACK反馈信息的时域位置的TTI长度。
  6. 如权利要求1所述的方法,其特征在于,所述方法还包括:
    所述终端根据所述第一物理下行控制信道传输所在的子帧编号和/或TTI编号和/或符号编号和/或时隙编号和/或微时隙编号,与所述第一指示域所指示的ACK/NACK反馈信息的时域位置的子帧编号和/或TTI编号和/或符号编号和/或时隙编号和/或微时隙编号的大小或前后顺序,确定所述第一指示域所指示的ACK/NACK反馈信息的时域位置所在的无线帧或半帧或子帧或TTI或时隙或微时隙或符号的位置。
  7. 如权利要求4-6任一项所述的方法,其特征在于,所述ACK/NACK反馈信息的时域位置为以下方式之一或者其组合:
    所述ACK/NACK反馈信息的时域位置所在的无线帧为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的无线帧,或者 所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的无线帧之后的第n1个无线帧,其中,所述n1为正整数;
    所述ACK/NACK反馈信息的时域位置所在的半帧为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的半帧,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的半帧之后的第n2个半帧,其中,所述n2为正整数;
    所述ACK/NACK反馈信息的时域位置所在的子帧为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的子帧,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的子帧之后的第n3个子帧,其中,所述n3为正整数;
    所述ACK/NACK反馈信息的时域位置所在的时隙为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的时隙,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的时隙之后的第n4个时隙,其中,所述n4为正整数;
    所述ACK/NACK反馈信息的时域位置所在的微时隙为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的微时隙,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的微时隙之后的第n5个微时隙,其中,所述n5为正整数;
    所述ACK/NACK反馈信息的时域位置所在的TTI为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的TTI,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的TTI之后的第n6个TTI,其中,所述n6为正整数;
    所述ACK/NACK反馈信息的时域位置所在的符号为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的符号,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的符号之后的第n7个符号,其中,所述n7为正整数。
  8. 如权利要求1-3任一项所述的方法,其特征在于,所述第一指示域指示所述ACK/NACK反馈信息传输所需占用的第一个符号的位置,所述ACK/NACK反馈信息占用以所述第一个符号为起点的连续A个上行符号,所述A为正整数;或者,
    所述第一指示域指示所述ACK/NACK反馈信息传输所需占用的第一个TTI的位置,所述ACK/NACK反馈信息占用以所述第一个TTI为起点的连续A个上行TTI;或者,
    所述第一指示域指示所述ACK/NACK反馈信息传输所需占用的第一个时隙的位置,所述ACK/NACK反馈信息占用以所述第一个时隙为起点的连续A个时隙;或者,
    所述第一指示域指示所述ACK/NACK反馈信息传输所需占用的第一个微时隙的位置,所述ACK/NACK反馈信息占用以所述第一个微时隙为起点的连续A个微时隙;或者,
    所述第一指示域指示所述ACK/NACK反馈信息传输所需占用的第一个子帧的位置,所述ACK/NACK反馈信息占用以所述第一个子帧为起点的连续A个子帧。
  9. 如权利要求1所述的方法,其特征在于,若所述终端根据多个所述第一物理下行控制信道的第一指示域分别确定的ACK/NACK反馈信息的时域位置相同,则所述终端在所述ACK/NACK反馈信息的时域位置,传输所述ACK/NACK反馈信息,包括:
    所述终端按照所述多个所述第一物理下行控制信道中的DCI中的下行分配索引DAI指示域,将所述多个所述第一物理下行控制信道中的每个第一物理下行控制信道或与每个第一物理下行控制信道所对应的第一物理下行共享信道的ACK/NACK反馈信息级联后,在所述ACK/NACK反馈信息的时域位置传输。
  10. 如权利要求1-6、9任一项所述的方法,其特征在于,所述时域位置为以下任意一种:
    子帧编号和/或符号编号和/或TTI编号和/或时隙编号和/或微时隙编号。
  11. 一种ACK/NACK反馈方法,其特征在于,包括:
    基站向终端发送第一物理下行控制信道,所述第一物理下行控制信道的下行控制信息DCI中携带第一指示域,所述第一指示域用于确定ACK/NACK反馈信息的时域位置;
    所述基站在根据所述第一指示域确定的ACK/NACK反馈信息的时域位置,接收所述终端反馈的所述第一物理下行控制信道或者与所述第一物理下行控制信道对应的第一物理下行共享信道的ACK/NACK反馈信息。
  12. 如权利要求11所述的方法,其特征在于,所述第一指示域具体用于指示K个能够用于传输ACK/NACK反馈信息的时域位置,所述K为正整数。
  13. 如权利要求12所述的方法,其特征在于,所述第一指示域包含P个比特的信息,所述
    Figure PCTCN2017075354-appb-100003
    其中,
    Figure PCTCN2017075354-appb-100004
    表示向上取整。
  14. 如权利要求11所述的方法,其特征在于,所述第一指示域用于指示传输所述ACK/NACK反馈信息的时域位置所在的无线帧或半帧或子帧或时隙或发送时间间隔TTI或微时隙或符号的位置。
  15. 如权利要求11所述的方法,其特征在于,所述方法还包括:
    所述基站根据第一TTI长度和/或第二TTI长度确定所述第一指示域所指示的ACK/NACK反馈信息的时域位置所在的无线帧或半帧或子帧或时隙或微时隙或符号的位置,其中,所述第一TTI长度为所述第一物理下行控制信道和/或与所述第一物理下行控制信道对应的第一物理下行共享信道的TTI长度,所述第二TTI长度为预先配置或约定的用于确定ACK/NACK反馈信息的时域位置的TTI长度。
  16. 如权利要求11所述的方法,其特征在于,所述方法还包括:
    所述基站根据所述第一物理下行控制信道传输所在的子帧编号和/或TTI编号和/或符号编号和/或时隙编号和/或微时隙编号,与所述第一指示域所指示的ACK/NACK反馈信息的时域位置的子帧编号和/或TTI编号和/或符号编号和/或时隙编号和/或微时隙编号的大小或前后顺序,确定所述第一指示域所指示的ACK/NACK反馈信息的时域位置所在的无线帧或半帧或子帧或TTI或时隙或微时隙或符号的位置。
  17. 如权利要求14-16任一项所述的方法,其特征在于,所述ACK/NACK反馈信息的时域位置为以下方式之一或者其组合:
    所述ACK/NACK反馈信息的时域位置所在的无线帧为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的无线帧,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的无线帧之后的第n1个无线帧,其中,所述n1为正整数;
    所述ACK/NACK反馈信息的时域位置所在的半帧为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的半帧,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的半帧之后的第n2个半帧,其中,所述n2为正整数;
    所述ACK/NACK反馈信息的时域位置所在的子帧为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的子帧,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的子帧之后的第n3个子帧,其中,所述n3为正整数;
    所述ACK/NACK反馈信息的时域位置所在的时隙为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的时隙,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的时隙之后的第n4个时隙,其中,所述n4为正整数;
    所述ACK/NACK反馈信息的时域位置所在的微时隙为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的微时隙,或者 所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的微时隙之后的第n5个微时隙,其中,所述n5为正整数;
    所述ACK/NACK反馈信息的时域位置所在的TTI为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的TTI,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的TTI之后的第n6个TTI,其中,所述n6为正整数;
    所述ACK/NACK反馈信息的时域位置所在的符号为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的符号,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的符号之后的第n7个符号,其中,所述n7为正整数。
  18. 如权利要求11-13任一项所述的方法,其特征在于,所述第一指示域指示所述ACK/NACK反馈信息传输所需占用的第一个符号的位置,所述ACK/NACK反馈信息占用以所述第一个符号为起点的连续A个上行符号,所述A为正整数;或者,
    所述第一指示域指示所述ACK/NACK反馈信息传输所需占用的第一个TTI的位置,所述ACK/NACK反馈信息占用以所述第一个TTI为起点的连续A个上行TTI;或者,
    所述第一指示域指示所述ACK/NACK反馈信息传输所需占用的第一个时隙的位置,所述ACK/NACK反馈信息占用以所述第一个时隙为起点的连续A个时隙;或者,
    所述第一指示域指示所述ACK/NACK反馈信息传输所需占用的第一个微时隙的位置,所述ACK/NACK反馈信息占用以所述第一个微时隙为起点的连续A个微时隙;或者,
    所述第一指示域指示所述ACK/NACK反馈信息传输所需占用的第一个子帧的位置,所述ACK/NACK反馈信息占用以所述第一个子帧为起点的连续A个子帧。
  19. 如权利要求11所述的方法,其特征在于,若所述基站确定所述终端的多个所述第一物理下行控制信道的第一指示域所指示的ACK/NACK反馈信息的时域位置相同,所述方法还包括:
    所述基站按照所述多个所述第一物理下行控制信道中的DCI中的下行分配索引DAI指示域,确定所述多个所述第一物理下行控制信道中的每个第一物理下行控制信道或与每个第一物理下行控制信道所对应的第一物理下行共享信道的ACK/NACK反馈信息的级联顺序,根据确定的所述级联顺序解析在所述时域位置接收到的ACK/NACK反馈信息。
  20. 如权利要求11-16、19任一项所述的方法,其特征在于,所述时域位置为以下任意一种:
    子帧编号和/或符号编号和/或TTI编号和/或时隙编号和/或微时隙编号。
  21. 一种终端,其特征在于,包括:
    接收模块,用于接收第一物理下行控制信道,所述第一物理下行控制信道的下行控制信息DCI中携带第一指示域,所述第一指示域用于确定ACK/NACK反馈信息的时域位置;
    反馈模块,用于根据所述第一指示域确定所述第一物理下行控制信道或者与所述第一物理下行控制信道对应的第一物理下行共享信道的ACK/NACK反馈信息的时域位置,并在所述ACK/NACK反馈信息的时域位置,传输所述ACK/NACK反馈信息。
  22. 如权利要求21所述的终端,其特征在于,所述第一指示域具体用于指示K个能够用于传输ACK/NACK反馈信息的时域位置,所述K为正整数。
  23. 如权利要求22所述的终端,其特征在于,所述第一指示域包含P个比特的信息,所述
    Figure PCTCN2017075354-appb-100005
    其中,
    Figure PCTCN2017075354-appb-100006
    表示向上取整。
  24. 如权利要求21所述的终端,其特征在于,所述第一指示域用于指示传输所述ACK/NACK反馈信息的时域位置所在的无线帧或半帧或子帧或时隙或发送时间间隔TTI或微时隙或符号的位置。
  25. 如权利要求21所述的终端,其特征在于,所述反馈模块还用于:
    根据第一TTI长度和/或第二TTI长度确定所述第一指示域所指示的ACK/NACK反馈信息的时域位置所在的无线帧或半帧或子帧或时隙或微时隙或符号的位置,其中,所述第一TTI长度为所述第一物理下行控制信道和/或与所述第一物理下行控制信道对应的第一物理下行共享信道的TTI长度,所述第二TTI长度为预先配置或约定的用于确定ACK/NACK反馈信息的时域位置的TTI长度。
  26. 如权利要求21所述的终端,其特征在于,所述反馈模块还用于:
    根据所述第一物理下行控制信道传输所在的子帧编号和/或TTI编号和/或符号编号和/或时隙编号和/或微时隙编号,与所述第一指示域所指示的ACK/NACK反馈信息的时域位置的子帧编号和/或TTI编号和/或符号编号和/或时隙编号和/或微时隙编号的大小或前后顺序,确定所述第一指示域所指示的ACK/NACK反馈信息的时域位置所在的无线帧或半帧或子帧或TTI或时隙或微时隙或符号的位置。
  27. 如权利要求24-26任一项所述的终端,其特征在于,所述ACK/NACK反馈信息的时域位置为以下方式之一或者其组合:
    所述ACK/NACK反馈信息的时域位置所在的无线帧为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的无线帧,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的无线帧之后的第n1个无线帧,其中,所述n1为正整数;
    所述ACK/NACK反馈信息的时域位置所在的半帧为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的半帧,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的半帧之后的第n2个半帧,其中,所述n2为正整数;
    所述ACK/NACK反馈信息的时域位置所在的子帧为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的子帧,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的子帧之后的第n3个子帧,其中,所述n3为正整数;
    所述ACK/NACK反馈信息的时域位置所在的时隙为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的时隙,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的时隙之后的第n4个时隙,其中,所述n4为正整数;
    所述ACK/NACK反馈信息的时域位置所在的微时隙为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的微时隙,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的微时隙之后的第n5个微时隙,其中,所述n5为正整数;
    所述ACK/NACK反馈信息的时域位置所在的TTI为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的TTI,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的TTI之后的第n6个TTI,其中,所述n6为正整数;
    所述ACK/NACK反馈信息的时域位置所在的符号为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的符号,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的符号之后的第n7个符号,其中,所述n7为正整数。
  28. 如权利要求21-23任一项所述的终端,其特征在于,所述第一指示域指示所述ACK/NACK反馈信息传输所需占用的第一个符号的位置,所述ACK/NACK反馈信息占用以所述第一个符号为起点的连续A个上行符号,所述A为正整数;或者,
    所述第一指示域指示所述ACK/NACK反馈信息传输所需占用的第一个TTI的位置,所述ACK/NACK反馈信息占用以所述第一个TTI为起点的连续A个上行TTI;或者,
    所述第一指示域指示所述ACK/NACK反馈信息传输所需占用的第一个时隙的位置,所述ACK/NACK反馈信息占用以所述第一个时隙为起点的连续A个时隙;或者,
    所述第一指示域指示所述ACK/NACK反馈信息传输所需占用的第一个微时隙的位置,所述ACK/NACK反馈信息占用以所述第一个微时隙为起点的连续A个微时隙;或者,
    所述第一指示域指示所述ACK/NACK反馈信息传输所需占用的第一个子帧的位置,所述ACK/NACK反馈信息占用以所述第一个子帧为起点的连续A个子帧。
  29. 如权利要求21所述的终端,其特征在于,所述反馈模块具体用于:
    若所述终端根据多个所述第一物理下行控制信道的第一指示域分别确定的ACK/NACK反馈信息的时域位置相同,按照所述多个所述第一物理下行控制信道中的DCI中的下行分配索引DAI指示域,将所述多个所述第一物理下行控制信道中的每个第一物理下行控制信道或与每个第一物理下行控制信道所对应的第一物理下行共享信道的ACK/NACK反馈信息级联后,在所述ACK/NACK反馈信息的时域位置传输。
  30. 如权利要求21-26、29任一项所述的终端,其特征在于,所述时域位置为以下任意一种:
    子帧编号和/或符号编号和/或TTI编号和/或时隙编号和/或微时隙编号。
  31. 一种基站,其特征在于,包括:
    发送模块,用于向终端发送第一物理下行控制信道,所述第一物理下行控制信道的下行控制信息DCI中携带第一指示域,所述第一指示域用于确定ACK/NACK反馈信息的时域位置;
    接收模块,用于在根据所述第一指示域确定的ACK/NACK反馈信息的时域位置,接收所述终端反馈的所述第一物理下行控制信道或者与所述第一物理下行控制信道对应的第一物理下行共享信道的ACK/NACK反馈信息。
  32. 如权利要求31所述的基站,其特征在于,所述第一指示域具体用于指示K个能够用于传输ACK/NACK反馈信息的时域位置,所述K为正整数。
  33. 如权利要求32所述的基站,其特征在于,所述第一指示域包含P个比特的信息,所述
    Figure PCTCN2017075354-appb-100007
    其中,
    Figure PCTCN2017075354-appb-100008
    表示向上取整。
  34. 如权利要求31所述的基站,其特征在于,所述第一指示域用于指示传输所述ACK/NACK反馈信息的时域位置所在的无线帧或半帧或子帧或时隙或发送时间间隔TTI或微时隙或符号的位置。
  35. 如权利要求31所述的基站,其特征在于,还包括处理模块,用于:
    根据第一TTI长度和/或第二TTI长度确定所述第一指示域所指示的ACK/NACK反馈信息的时域位置所在的无线帧或半帧或子帧或时隙或微时隙或符号的位置,其中,所述第一TTI长度为所述第一物理下行控制信道和/或与所述第一物理下行控制信道对应的第一 物理下行共享信道的TTI长度,所述第二TTI长度为预先配置或约定的用于确定ACK/NACK反馈信息的时域位置的TTI长度。
  36. 如权利要求31所述的基站,其特征在于,还包括处理模块,用于:
    根据所述第一物理下行控制信道传输所在的子帧编号和/或TTI编号和/或符号编号和/或时隙编号和/或微时隙编号,与所述第一指示域所指示的ACK/NACK反馈信息的时域位置的子帧编号和/或TTI编号和/或符号编号和/或时隙编号和/或微时隙编号的大小或前后顺序,确定所述第一指示域所指示的ACK/NACK反馈信息的时域位置所在的无线帧或半帧或子帧或TTI或时隙或微时隙或符号的位置。
  37. 如权利要求34-36任一项所述的基站,其特征在于,所述ACK/NACK反馈信息的时域位置为以下方式之一或者其组合:
    所述ACK/NACK反馈信息的时域位置所在的无线帧为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的无线帧,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的无线帧之后的第n1个无线帧,其中,所述n1为正整数;
    所述ACK/NACK反馈信息的时域位置所在的半帧为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的半帧,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的半帧之后的第n2个半帧,其中,所述n2为正整数;
    所述ACK/NACK反馈信息的时域位置所在的子帧为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的子帧,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的子帧之后的第n3个子帧,其中,所述n3为正整数;
    所述ACK/NACK反馈信息的时域位置所在的时隙为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的时隙,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的时隙之后的第n4个时隙,其中,所述n4为正整数;
    所述ACK/NACK反馈信息的时域位置所在的微时隙为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的微时隙,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的微时隙之后的第n5个微时隙,其中,所述n5为正整数;
    所述ACK/NACK反馈信息的时域位置所在的TTI为:所述第一物理下行控制信道或 与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的TTI,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的TTI之后的第n6个TTI,其中,所述n6为正整数;
    所述ACK/NACK反馈信息的时域位置所在的符号为:所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的符号,或者所述第一物理下行控制信道或与所述第一物理下行控制信道所对应的第一物理下行共享信道传输所在的符号之后的第n7个符号,其中,所述n7为正整数。
  38. 如权利要求31-33任一项所述的基站,其特征在于,所述第一指示域指示所述ACK/NACK反馈信息传输所需占用的第一个符号的位置,所述ACK/NACK反馈信息占用以所述第一个符号为起点的连续A个上行符号,所述A为正整数;或者,
    所述第一指示域指示所述ACK/NACK反馈信息传输所需占用的第一个TTI的位置,所述ACK/NACK反馈信息占用以所述第一个TTI为起点的连续A个上行TTI;或者,
    所述第一指示域指示所述ACK/NACK反馈信息传输所需占用的第一个时隙的位置,所述ACK/NACK反馈信息占用以所述第一个时隙为起点的连续A个时隙;或者,
    所述第一指示域指示所述ACK/NACK反馈信息传输所需占用的第一个微时隙的位置,所述ACK/NACK反馈信息占用以所述第一个微时隙为起点的连续A个微时隙;或者,
    所述第一指示域指示所述ACK/NACK反馈信息传输所需占用的第一个子帧的位置,所述ACK/NACK反馈信息占用以所述第一个子帧为起点的连续A个子帧。
  39. 如权利要求31所述的基站,其特征在于,还包括处理模块,用于:
    若所述基站确定所述终端的多个所述第一物理下行控制信道的第一指示域所指示的ACK/NACK反馈信息的时域位置相同,按照所述多个所述第一物理下行控制信道中的DCI中的下行分配索引DAI指示域,确定所述多个所述第一物理下行控制信道中的每个第一物理下行控制信道或与每个第一物理下行控制信道所对应的第一物理下行共享信道的ACK/NACK反馈信息的级联顺序,根据确定的所述级联顺序解析在所述时域位置接收到的ACK/NACK反馈信息。
  40. 如权利要求31-36、39任一项所述的基站,其特征在于,所述时域位置为以下任意一种:
    子帧编号和/或符号编号和/或TTI编号和/或时隙编号和/或微时隙编号。
  41. 一种终端,其特征在于,包括处理器、存储器和收发机,其中,
    所述收发机用于在所述处理器的控制下接收和发送数据,所述存储器保存有预设的程序,当处理器执行所述存储器保存的程序时,所述终端用于完成如权利要求1至10任意一项所述的方法。
  42. 一种基站,其特征在于,包括处理器、存储器和收发机,其中,
    所述收发机用于在所述处理器的控制下接收和发送数据,所述存储器保存有预设的程序,当处理器执行所述存储器保存的程序时,所述基站用于完成如权利要求11至20任意一项所述的方法。
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