WO2018028302A1 - 一种反馈信息的传输方法、装置及系统 - Google Patents

一种反馈信息的传输方法、装置及系统 Download PDF

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Publication number
WO2018028302A1
WO2018028302A1 PCT/CN2017/088486 CN2017088486W WO2018028302A1 WO 2018028302 A1 WO2018028302 A1 WO 2018028302A1 CN 2017088486 W CN2017088486 W CN 2017088486W WO 2018028302 A1 WO2018028302 A1 WO 2018028302A1
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Prior art keywords
tti
feedback
window
carrier
delay
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PCT/CN2017/088486
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English (en)
French (fr)
Inventor
司倩倩
潘学明
高雪娟
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电信科学技术研究院
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Publication of WO2018028302A1 publication Critical patent/WO2018028302A1/zh

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    • 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
    • H04L1/1621Group acknowledgement, i.e. the acknowledgement message defining a range of identifiers, e.g. of sequence numbers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • 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
    • H04L1/1657Implicit acknowledgement of correct or incorrect reception, e.g. with a moving window
    • 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

Definitions

  • the present application relates to the field of mobile communications technologies, and in particular, to a method, device, and system for transmitting feedback information.
  • TTI Transmission time interval
  • ACK acknowledgment information
  • NACK non-confirmation information
  • LTE Long Term Evolution
  • the LTE system uses bundling or multiplexing schemes for feedback, always determined according to the maximum possible.
  • the ACK/NACK codebook size that is fed back makes the performance of ACK/NACK feedback poor.
  • PUCCH format 1b with channel selection is used for feedback in the LTE system
  • PUCCH format 3 Physical Uplink Control CHannel
  • the feedback is also determined according to the maximum possible.
  • the ACK/NACK codebook size also makes the ACK/NACK feedback performance worse.
  • the fixed and dynamic feedback codebook size is supported.
  • the ACK/NACK codebook size is also determined according to the maximum possible feedback, and the ACK/NACK feedback is also made. Poor performance;
  • the dynamic codebook size 2 bits are used in the downlink scheduling signaling to carry the counter DAI, the counter DAI is used to indicate the scheduling subframe/carrier number, and 2 bits carry the total DAI, and the total DAI is used to indicate The total number of scheduled subframes/carriers up to the current subframe, but the counter DAI and the total DAI are only fed back for a longer TTI, thus causing a misunderstanding between the base station and the terminal for the ACK/NACK codebook size.
  • the embodiment of the present application provides a method, a device, and a system for transmitting feedback information, which are used to solve the prior art.
  • the performance of ACK/NACK feedback is poor, and the problem of misinterpretation of the ACK/NACK codebook size between the base station and the terminal.
  • the embodiment of the present application provides a method for transmitting feedback information, which is applied to a base station, and includes:
  • the number of the TTI and the feedback delay are carried in the downlink scheduling signaling and sent to the terminal, so that the terminal determines the size of the feedback window for feeding back the TTI according to the number and the feedback delay;
  • the feedback information is received according to the size of the feedback window.
  • the determining the number of the TTI includes:
  • the number of the TTI is determined according to the location of the downlink TTI in the feedback window, where the feedback window refers to a set of transmission locations corresponding to all downlink TTIs that are fed back in the feedback resource of the same uplink TTI.
  • determining the number of the TTI according to the location of the downlink TTI in the feedback window includes:
  • the other time positions are numbered according to intervals of other time positions and the first time position, wherein a difference between the number of the other time positions and the number of the first time position is the interval includes The number of minimum TTI lengths;
  • the number of the TTI is determined according to the number of the time position corresponding to the scheduled TTI.
  • determining the number of the TTI according to the location of the downlink TTI in the feedback window includes:
  • Each of the other time positions is numbered according to an interval of each of the other time positions and the first time position, wherein a difference between the number of the other time positions and the number of the first time position is The number of minimum TTI lengths included in the interval;
  • the number of the TTI is determined according to the number of the time position corresponding to the scheduled TTI.
  • determining the number of the TTI includes:
  • the scheduled TTI occupies a time position, it is determined that the number of the scheduled TTI is the number of the occupied time position;
  • the number of the scheduled TTI is the number of the first time position in the one or more time positions.
  • the determined first time position is numbered 1.
  • determining a feedback delay of the TTI includes:
  • the minimum time to demodulate and generate feedback information, and the feedback delay is determined based on the shortest TTI length transmitted in the feedback window or based on the minimum TTI length transmitted on the carrier.
  • the number of bits occupied by the number of the TTI in the downlink scheduling signaling is M is the preset maximum feedback window value.
  • the size of the feedback window is the sum of the number of the TTI and the feedback delay.
  • the size of the feedback window is the sum of the number of the TTI and the feedback delay minus a preset value, wherein the preset value is a pre-defined value for each feedback TTI.
  • the size of the feedback window is the sum of the number of the TTI and the feedback delay plus one;
  • the size of the feedback window is the sum of the number of the TTI and the feedback delay minus the preset value plus one, wherein the preset value is a pre-defined value for each feedback TTI.
  • a method for transmitting feedback information is applied to a terminal, where the method includes:
  • the determining, according to the TTI number and the feedback delay carried in the downlink scheduling signaling, determining a feedback window for performing the TTI feedback includes:
  • the feedback window includes:
  • the sum of the number of the TTI and the feedback delay is subtracted from the preset value by 1 as the size of the feedback window, and the preset value is a predefined value of the TTI for each feedback or The value of the dynamic indication of the downlink scheduling signaling.
  • determining the feedback information according to the size of the feedback window and the received data information includes:
  • the feedback codebook is sorted according to the order of the TTIs in the feedback window, and the NTI/DTX information is filled in the corresponding position for the TTI that does not receive the information;
  • the feedback codebooks are sequentially sorted according to the shortest TTI transmitted in the feedback window, and the NACK/DTX information is padded at the corresponding location for the TTI that has not received the information.
  • determining the feedback information according to the size of the feedback window and the received data information includes:
  • the feedback codebook is sorted according to the order of the TTIs in the feedback window, and the feedback codebook is determined according to the carrier sequence cascade;
  • the feedback codebooks are sequentially sorted according to the shortest TTI transmitted in the feedback window, and the NTI/DTX information is filled in the corresponding position for the TTI that has not received the information, and
  • the feedback codebook is determined in cascade by carrier order.
  • the ordering of the feedback codebooks according to the shortest TTI transmitted in the feedback window includes:
  • the embodiment of the present application provides a transmission device for feedback information, where the device includes:
  • a determining module configured to determine a number and a feedback delay of the TTI for each downlink transmission time interval TTI scheduled
  • a sending module configured to send the number and the feedback delay of the TTI to the terminal in the downlink scheduling signaling, so that the terminal determines, according to the number and the feedback delay, a feedback window that feeds back the TTI. Size; receiving feedback information according to the size of the feedback window.
  • the determining module includes:
  • a first determining unit configured to determine a number of the TTI according to a location of the downlink TTI in a feedback window, where the feedback window refers to a transmission corresponding to all downlink TTIs that are fed back in a feedback resource of the same uplink TTI Location collection.
  • the first determining unit is specifically configured to: according to the minimum TTI length transmitted on the carrier, divide the time position on the carrier according to the minimum TTI length when identifying that the configuration terminal adopts single carrier transmission; Determining, in the feedback window, a first time position of the TTI, determining a number of the first time position; and numbering the other time positions according to an interval between the other time positions and the first time position, The difference between the number of the other time position and the number of the first time position is the number of minimum TTI lengths included in the interval; determining the TTI according to the number of the time position corresponding to the scheduled TTI The number.
  • the first determining unit is specifically configured to divide time positions on all carriers according to the minimum TTI length according to a minimum TTI length transmitted on all carriers; and identify that all carriers in the feedback window schedule TTI a first time position, determining a number of the first time position; numbering each of the other time positions according to an interval of each of the other time positions from the first time position, wherein the other time The difference between the number of the location and the number of the first time location is the number of minimum TTI lengths included in the interval; and the number of the TTI is determined according to the number of the time position corresponding to the scheduled TTI.
  • the first determining unit when the TTI is scheduled to occupy a time position, determines that the number of the scheduled TTI is the number of the occupied time position; the scheduled TTI occupies more than one The time position determines that the number of the scheduled TTI is the number of the first time position in the one or more time positions.
  • the determining module further includes:
  • a second determining unit configured to determine a difference between a time when the TTI is transmitted to the feedback information transmission location and a minimum processing delay, where the difference is determined as a feedback delay of the TTI, where the minimum processing delay
  • the minimum time for the terminal to demodulate and generate feedback information after receiving the data packet, and the feedback delay is determined according to the shortest TTI length transmitted in the feedback window or according to the minimum TTI length transmitted on the carrier.
  • the embodiment of the present application further provides a transmission device for feedback information, where the device includes:
  • a receiving module configured to receive a downlink transmission time interval TTI and corresponding downlink scheduling signaling
  • a determining module configured to determine, according to the number of the TTI and the feedback delay carried in the downlink scheduling signaling, a feedback window for performing the TTI feedback, and determining, according to the size of the feedback window and the received data information, Feedback.
  • the determining module is specifically configured to determine a sum of the number of the TTI and the feedback delay as a feedback window for performing the TTI feedback; or determine a sum of the number of the TTI and a feedback delay; And summing the preset value as the size of the feedback window, wherein the preset value is a predefined value of TTI for each feedback, or a value carried in the downlink scheduling signaling.
  • the determining module is further configured to: when a semi-permanent SPS transmission is configured on the carrier, and when there is an SPS periodic transmission TTI in the feedback window, adding a sum of the TTI number and the feedback delay to the Feedback window Or the size of the TTI and the feedback delay minus the preset value plus 1 as the size of the feedback window, the preset value being predefined for each feedback TTI The value or the value dynamically indicated by the downlink scheduling signaling.
  • the determining module is specifically configured to: when a single carrier transmission is configured, if the carrier only includes a TTI of a length, the feedback codebook is sorted according to the order of the TTIs in the feedback window, and the information is not received.
  • the TTI fills the NACK/DTX information in the corresponding position; if the TTI is transmitted on the carrier at least two lengths, the feedback codebook is sequentially sorted according to the shortest TTI transmitted in the feedback window, and the TTI that does not receive the information is filled in the corresponding position. NACK/DTX information.
  • the determining module is specifically configured to: when configured for multi-carrier transmission, if each carrier includes only one length of TTI, the feedback codebook is sorted according to the order of the TTIs in the feedback window, and The feedback codebook is determined according to the carrier sequence cascading; for each carrier, if at least two lengths of TTI are transmitted on the carrier, the feedback codebook is sequentially sorted according to the shortest TTI transmitted in the feedback window, and the TTI that does not receive the information is The corresponding location fills the NACK/DTX information, and the feedback codebook is determined in cascade according to the carrier sequence.
  • the determining module is specifically configured to perform feedback on a first or last shortest TTI included in the first length TTI for a TTI of a first length greater than a shortest TTI length, and fill the other locations NACK/DTX information; or, for a TTI of a first length greater than the shortest TTI length, repeated feedback is performed in all of the shortest length TTI locations included in the first length TTI.
  • the embodiment of the present application provides a transmission system for feedback information, where the system includes a transmission device for feedback information applied to a base station as described above, and a transmission device for feedback information applied to the terminal according to any of the above.
  • the embodiment of the present application further provides a transmission device for feedback information, where the device includes:
  • the size of the feedback window receives feedback information.
  • a transceiver for receiving and transmitting data.
  • the processor is further configured to determine, according to a location of the downlink TTI in a feedback window, the number of the TTI, where the feedback window refers to all feedbacks in a feedback resource of the same uplink TTI. A set of transmission locations corresponding to the downlink TTI.
  • the processor is specifically configured to:
  • the configuration terminal adopts single carrier transmission, according to the minimum TTI length transmitted on the carrier, according to the The minimum TTI length divides the time position on the carrier; identifies the first time position in the feedback window in which the TTI is scheduled, determines the number of the first time position; and according to other time positions and the first time An interval of positions, wherein the other time positions are numbered, wherein a difference between the number of the other time positions and the number of the first time position is a number of minimum TTI lengths included in the interval; according to the scheduled The number of the time position corresponding to the TTI determines the number of the TTI.
  • the processor is specifically configured to divide time positions on all carriers according to the minimum TTI length according to a minimum TTI length transmitted on all carriers; and identify that all carriers in the feedback window schedule TTIs a time position, determining a number of the first time position; numbering each of the other time positions according to an interval of each of the other time positions from the first time position, wherein the other time positions The difference between the number of the first time position and the number of the first time position is the number of minimum TTI lengths included in the interval; and the number of the TTI is determined according to the number of the time position corresponding to the scheduled TTI.
  • the processor when the scheduled TTI occupies a time position, determines that the number of the scheduled TTI is the number of the occupied time position; the scheduled TTI occupies more than one time. In the case of a location, it is determined that the number of the scheduled TTI is the number of the first one of the one or more time positions.
  • the processor is further configured to determine a difference between a time when the TTI is transmitted to a feedback information transmission location and a minimum processing delay, and determine the difference as a feedback delay of the TTI, where
  • the minimum processing delay is a minimum time for the terminal to demodulate and generate feedback information after receiving the data packet, and the feedback delay is determined according to the shortest TTI length transmitted in the feedback window or according to the minimum TTI length transmitted on the carrier.
  • the embodiment of the present application further provides a transmission device for feedback information, where the device includes:
  • a transceiver for receiving and transmitting data.
  • the processor is specifically configured to determine a sum of the number of the TTI and the feedback delay as a feedback window for performing the TTI feedback; or determine a sum of the number of the TTI and a feedback delay; The sum is subtracted from the preset value as the size of the feedback window, wherein the preset value is a pre-defined value for each feedback TTI, or a value carried in the downlink scheduling signaling.
  • the processor is further configured to: when a semi-persistent SPS transmission is configured on the carrier, and when there is an SPS periodic transmission TTI in the feedback window, adding the sum of the TTI number and the feedback delay to the The size of the feedback window; or, the sum of the TTI number and the feedback delay is subtracted from the preset value and 1 is added as the feedback window.
  • the size, the preset value is a pre-defined value for each feedback TTI or a value dynamically indicated by downlink scheduling signaling.
  • the processor is specifically configured to: when a single carrier transmission is configured, if the carrier only includes a TTI of a length, the feedback codebook is sorted according to the sequence of the TTI in the feedback window, and the information is not received.
  • the TTI fills the NACK/DTX information at the corresponding location; if the carrier transmits at least two lengths of the TTI, the feedback codebook is sequentially sorted according to the shortest TTI transmitted in the feedback window, and the TTI that does not receive the information is in the corresponding position. Fill in NACK/DTX information.
  • the processor is specifically configured to: when the multi-carrier transmission is configured, if the carrier includes only one length of the TTI, the feedback codebook is sorted according to the TTI in the feedback window. And determining, according to the carrier sequence, the feedback codebook; for each carrier, if at least two lengths of TTI are transmitted on the carrier, the feedback codebook is sequentially sorted according to the shortest TTI transmitted in the feedback window, and the TTI is not received.
  • the NACK/DTX information is padded at the corresponding location, and the feedback codebook is determined in cascade according to the carrier sequence.
  • the processor is specifically configured to perform feedback on a first or last shortest TTI included in the first length TTI for a TTI of a first length greater than a shortest TTI length, and other locations
  • the NACK/DTX information is padded; or, for a TTI of a first length greater than the shortest TTI length, repeated feedback is performed in all of the shortest length TTI locations included in the first length TTI.
  • the present application discloses a method, an apparatus, and a system for transmitting feedback information.
  • the method includes: determining, for each downlink transmission time interval TTI, the number and feedback delay of the TTI; and numbering and feeding the TTI
  • the bearer is sent to the terminal in the downlink scheduling signaling, so that the terminal determines the size of the feedback window for performing the TTI feedback according to the number and the feedback delay, and receives the feedback information according to the size of the feedback window.
  • the base station determines the number of each TTI scheduled and the feedback delay, so that the terminal can determine the size of the feedback ACK/NACK feedback window according to the number and the feedback delay, and the base station adopts the feedback.
  • the size of the window receives the feedback information, so that the feedback codebook determined by the base station and the terminal is unified, and the misunderstanding of the ACK/NACK codebook size between the base station and the terminal is avoided, and the process does not need to determine the ACK according to the maximum possible feedback.
  • /NACK codebook size improves the performance of ACK/NACK feedback.
  • FIG. 1 is a schematic diagram of a transmission process of feedback information according to an embodiment of the present application
  • FIGS. 2A-2C are schematic diagrams showing transmission of feedback information in Embodiment 2;
  • 3A-3B are schematic diagrams showing transmission of feedback information of Embodiment 3.
  • Embodiment 4 is a schematic diagram of transmission of feedback information in Embodiment 6;
  • FIG. 5 is a schematic diagram of a transmission process of feedback information according to another embodiment of the present application.
  • FIG. 6 is a schematic structural diagram of a device for transmitting feedback information according to an embodiment of the present application.
  • FIG. 7 is a schematic structural diagram of a device for transmitting feedback information according to another embodiment of the present application.
  • FIG. 8 is a schematic structural diagram of a device for transmitting feedback information according to an embodiment of the present application.
  • FIG. 9 is a schematic structural diagram of a device for transmitting feedback information according to another embodiment of the present application.
  • FIG. 1 is a schematic diagram of a transmission process of feedback information according to an embodiment of the present application. The process includes the following steps:
  • S101 Determine a number and a feedback delay of the TTI for each downlink transmission time interval TTI scheduled.
  • the method for transmitting feedback information provided by the embodiment of the present application is applied to a base station.
  • the base station may determine the number and feedback delay of the TTI for each downlink TTI scheduled.
  • the TTI number and the feedback delay are carried in the downlink scheduling signaling and sent to the terminal, so that the terminal determines the size of the feedback window for performing the TTI feedback according to the number and the feedback delay.
  • the size of the feedback window receives feedback information.
  • the base station After determining the number of the TTI and the feedback delay, the base station sends downlink scheduling signaling to the terminal, where the downlink scheduling signaling carries the number of the TTI determined by the base station and the feedback delay of the TTI.
  • the terminal After receiving the downlink scheduling signaling, the terminal may determine, according to the TTI number and the feedback delay of the TTI, the feedback confirmation information or the non-acknowledgment information ACK/NACK.
  • the size of the feedback window and the terminal can also determine the size of the feedback codebook according to the current transmission mode and the determined size of the feedback window.
  • the sum of the TTI number and the feedback delay may be used as a feedback window.
  • the feedback window it is determined that the feedback codebook belongs to the prior art, and the process is not described in the embodiment of the present application.
  • the size of the feedback window for performing feedback may also be determined, and the feedback information is received by using the size of the feedback window. .
  • the size of the feedback window determined by the terminal and the base station is the same.
  • the base station determines the number of each TTI scheduled and the feedback delay, so that the terminal can determine the size of the feedback ACK/NACK feedback window according to the number and the feedback delay, and the base station adopts the feedback.
  • the size of the window receives the feedback information, so that the feedback codebook determined by the base station and the terminal is unified, and the misunderstanding of the ACK/NACK codebook size between the base station and the terminal is avoided, and the process does not need to determine the ACK according to the maximum possible feedback.
  • /NACK codebook size improves the performance of ACK/NACK feedback.
  • the determining the number of the TTI includes:
  • the number of the TTI is determined according to the location of the downlink TTI in the feedback window, where the feedback window refers to a set of transmission locations corresponding to all downlink TTIs that are fed back in the feedback resource of the same uplink TTI.
  • the feedback window refers to a set of transmission locations corresponding to all downlink TTIs that are fed back in the feedback resources of the same uplink TTI.
  • the downlink TTI may be included in the feedback window, and may include two or more downlink TTIs, and the included downlink TTI may be continuous or discontinuous. In this consecutive downlink TTI, or discontinuous downlink TTI, there may be data scheduled, or no data may be scheduled.
  • the base station determines the number of each TTI scheduled and the feedback delay, so that the terminal can determine the size of the feedback ACK/NACK feedback window according to the number and the feedback delay, and the base station adopts the feedback.
  • the size of the window receives the feedback information, so that the feedback codebook determined by the base station and the terminal is unified, and the misunderstanding of the ACK/NACK codebook size between the base station and the terminal is avoided, and the process does not need to determine the ACK according to the maximum possible feedback.
  • /NACK codebook size improves the performance of ACK/NACK feedback.
  • the base station determines the number of the TTI according to the position of the downlink TTI in the feedback window for each downlink time interval TTI scheduled by the feedback window, where the feedback window refers to the same uplink TTI.
  • the length of the scheduled TTI is different because the number of carriers of each TTI is different, and the scheduled TTI may be continuous or discontinuous. Therefore, in the present application, the number of the TTI is determined by different embodiments. The method is explained.
  • the determining, according to the location of the downlink TTI in the feedback window, the number of the TTI includes:
  • the other time positions are numbered according to intervals of other time positions and the first time position, wherein a difference between the number of the other time positions and the number of the first time position is the interval includes The number of minimum TTI lengths;
  • the number of the TTI is determined according to the number of the time position corresponding to the scheduled TTI.
  • the base station When the base station configures the terminal to use single-carrier transmission, the base station identifies the minimum TTI length transmitted on the carrier, and divides the time position on the carrier according to the minimum TTI length. For example, if the TTI transmitted on the carrier includes a TTI of 14 symbol lengths and a TTI of 7 symbol lengths, the minimum TTI length is 7 symbol lengths. Therefore, when dividing the time position on the carrier, the base station performs according to 7 symbol lengths. Division.
  • Each subframe has 14 symbol lengths including two time slots, and one subframe can schedule a TTI of 14 symbol lengths, and can also schedule 7 symbol length TTIs at any one time position.
  • the base station divides the time position on the carrier, the minimum TTI length is adopted, and the divided carrier includes multiple time positions.
  • the base station identifies the first time position in the feedback window in which the TTI is scheduled, and numbers the first time position. In the embodiment of the present application, for the convenience of numbering, it is determined that the number of the first time position is 1.
  • the other time positions are separated from the first time position, and the other time positions are numbered, that is, other time positions after the time position are sequentially numbered according to the number of the time positions, wherein the other The difference between the number of time positions and the number of the first time position is the number of minimum TTI lengths included in the interval.
  • the number of the TTI can be determined according to the number of the time position corresponding to the scheduled TTI. If the TTI occupies a time position, the number of the TTI is the number of the time position. If the TTI occupies two time positions, the TTI number is the number of one of the two time positions, where The number of a time position may be the number of the first time position of the two time positions, or the number of the second time position, and only the number of all TTIs occupying two time positions is the same. Just determine the way.
  • the determining, according to the number of the time position corresponding to each scheduled TTI, the number of the TTI includes:
  • the scheduled TTI occupies a time position, it is determined that the number of the scheduled TTI is the number of the occupied time position;
  • the number of the scheduled TTI is the number of the first time position in the one or more time positions.
  • TTI transmitted on the carrier is the minimum length TTI, then each of the methods can be directly determined according to the above manner. TTI number.
  • the number of the minimum length TTI may be directly determined according to the foregoing manner.
  • more than one of the TTIs may be used.
  • the number of any time position of the time position is the number of the TTI.
  • the base station configures the terminal to use single carrier transmission, and the base station simultaneously schedules 14 symbol length TTIs and 7 symbol length TTIs. Specifically, as shown in FIG. 2A, the base station schedules TTIs of 14 symbol lengths in subframe n and subframe n+1, and 7 symbols are scheduled in the first time position of subframe n+3 and subframe n+4. The length of the TTI, the four downlink TTIs scheduled by the base station are fed back in the same uplink TTI, that is, the four downlink TTIs are located in a feedback window.
  • the minimum TTI length that can be transmitted on the carrier is 7 symbol lengths, and the time position on the carrier is divided, and the first time position in which the TTI is scheduled in the feedback window is identified, and the first time position is numbered.
  • the first time position in which the TTI is scheduled in FIG. 2A is the first slot of the subframe n, and the number of the first time position is determined to be 1, and then the number corresponding to each time position in each subframe is 2, 3, ..., 9, etc., in Figure 2A, a is used to indicate the number.
  • the first TTI of the scheduling is a TTI of 14 symbol lengths, it occupies two time positions in the subframe n. At this time, the number of the first time position of the subframe n is taken as the scheduling in the subframe n.
  • the number of the TTI that is, the number of the TTI scheduled by the subframe n is 1.
  • the TTI of the same subframe n+1 scheduling is also 14 characters long. Therefore, the number of the first time position of the subframe n+1 is taken as the number of the scheduled TTI in the subframe n+1, that is, the subframe n+1.
  • the number of scheduled TTIs is 3.
  • the TTI scheduled by the subframe n+3 is 7 characters long, and is located at the first time slot of the subframe n+3, and the number of the first time slot of the subframe n+3 is 7, and the subframe n+3 is scheduled.
  • the number of the TTI is 7, and the same can be determined that the number of the TTI scheduled for the subframe n+4 is 9. Therefore, when transmitting the downlink scheduling signaling, the base station may carry 0010/0110/0111/1000 information respectively, indicating that the currently scheduled TTIs are numbered 1, 3, 7, and 9.
  • the method further includes: before dividing each position of the minimum length TTI transmitted on the carrier according to the minimum length of the TTI transmitted on the carrier, the method further includes:
  • identifying whether the TTI scheduled on the carrier is a minimum length TTI if not, identifying the first TTI scheduled in the feedback window, and determining the number of the first TTI, for scheduling each
  • the interval between the subframes of the other TTIs and the subframes in which the first TTI is scheduled is determined, and the number of each of the other TTIs is determined.
  • the length of each TTI is equal, it is identified whether the TTI scheduled in the feedback window is a minimum length TTI, and if the TTI is not a minimum length TTI, the feedback window may not be divided.
  • the base station can directly identify the first TTI scheduled in the feedback window, and determine the number of the first TTI. In the embodiment of the present application, for the convenience of numbering, it is determined that the number of the first TTI is 1. Determining, for the interval of scheduling the subframes of each of the other TTIs and the subframes for scheduling the first TTI, the number of each of the other TTIs according to the first one The number of the TTI is numbered sequentially, and is determined by the interval between the two according to the number.
  • the number of the TTI may be determined according to the foregoing manner, for example, the first TTI scheduled in the subframe n in the feedback window, in the subframe n+1
  • the second TTI is scheduled to be 2
  • the third TTI is scheduled in subframe n+3, and the third TTI is numbered 4.
  • 2B is a schematic diagram of a continuous downlink TTI scheduled by a base station when a single carrier transmits in the embodiment of the present application.
  • the base station schedules four consecutive downlink TTIs, and the consecutive four downlink TTIs are respectively in subframe n and subframe n. +1, subframe n+2 and subframe n+3 are scheduled, and the base station indicates that the four TTIs are fed back in the same uplink TTI, so that the four consecutive downlink TTIs are located in one feedback window.
  • the first TTI scheduled in the feedback window is directly identified, and the first TTI is determined.
  • the number is 1, and the number of three consecutive downlink TTIs is followed by 2, 3, and 4.
  • 2C is a schematic diagram of a discontinuous downlink TTI scheduled by a base station when a terminal is configured to use single-carrier transmission in the embodiment of the present application, where the base station schedules two discontinuous downlink TTIs, and the two discontinuous downlink TTIs are respectively in the sub- The frame n and the subframe n+2 are scheduled, and the base station indicates that the two TTIs are fed back in the same uplink TTI, so that the two discontinuous downlink TTIs are located in one feedback window.
  • the first TTI scheduled in the feedback window is directly identified, and the first TTI is determined.
  • the number is 1, and the second TTI number is 3.
  • each TTI scheduled by the feedback window may be a single carrier transmission or a multi-carrier transmission.
  • the determining, according to the location of the downlink TTI in the feedback window, the number of the TTI includes:
  • Each of the other time positions is numbered according to an interval of each of the other time positions and the first time position, wherein a difference between the number of the other time positions and the number of the first time position is The number of minimum TTI lengths included in the interval;
  • the number of the TTI is determined according to the number of the time position corresponding to the scheduled TTI.
  • the base station When the base station configures the terminal to adopt multi-carrier transmission, the base station identifies the minimum TTI length transmitted on all carriers for all carriers, and divides the time positions on all carriers according to the minimum TTI length. For example, if the TTI transmitted on the carrier includes a TTI of 14 symbol lengths and a TTI of 7 symbol lengths, the minimum TTI length is 7 symbol lengths. Therefore, when dividing the time position on the carrier, the base station performs according to 7 symbol lengths. Division.
  • Each subframe has 14 symbol lengths including two time slots, and one subframe can schedule a TTI of 14 symbol lengths, and can also schedule 7 symbol length TTIs at any one time position.
  • the base station divides the time position on the carrier, the minimum TTI length is adopted, and the divided carrier includes multiple time positions.
  • the base station identifies the first time position in the feedback window in which the TTI is scheduled, and numbers the first time position. In the embodiment of the present application, for the convenience of numbering, it is determined that the number of the first time position is 1.
  • the other time positions are numbered from the first time position, and the other time positions are numbered, that is, other time positions after the time position are sequentially numbered according to the number of the time positions, wherein the The difference between the number of other time positions and the number of the first time position is the number of minimum TTI lengths included in the interval, and the number of the same time position of each subframe of each carrier is the same.
  • the number of the TTI can be determined according to the number of the time position corresponding to each TTI scheduled. If the TTI occupies a time position, the number of the TTI is the number of the time position. If the TTI occupies two time positions, the TTI number is the number of one of the two time positions, where The number of a time position may be the number of the first time position of the two time positions, or the number of the second time position, and only the number of the TTI occupying two time positions in the feedback window is guaranteed. All can use the same determination method.
  • the determining, according to the number of the time position corresponding to each scheduled TTI, the number of the TTI includes:
  • the number of the scheduled TTI is the number of the first time position in the one or more time positions.
  • the number of each TTI can be directly determined according to the above manner.
  • the number of the minimum length TTI may be directly determined according to the foregoing manner.
  • more than one of the TTIs may be used.
  • the number of any time position of the time position is the number of the TTI.
  • the base station configures the terminal to use dual carrier transmission, and the base station simultaneously schedules a TTI of 14 symbol lengths and a TTI of 7 symbol lengths. Specifically, as shown in FIG. 3A, the base station schedules a TTI of 14 symbol lengths in subframe n+1 of carrier 1, and a TTI of 7 symbol lengths in a second position of subframe n+2; The second position of subframe n of 2 schedules a TTI of 7 symbol lengths, the subframe n+2 schedules a TTI of 14 symbol lengths, and the first position of subframe n+3 schedules 7 symbol lengths. TTI, and the base station indicates that all scheduled TTIs are fed back in subframe n+5.
  • the base station divides the feedback window according to the TTI of 7 symbol lengths for the feedback window, and identifies the first time position in the feedback window in which the TTI is scheduled for the carrier 1 and the carrier 2, for the first
  • the time positions are numbered, and the first time position in which the TTI is scheduled in FIG. 3A is the second time position of the subframe n in the carrier 2, so the number of the position is 1, and each time position in each subsequent subframe
  • the corresponding numbers are in order of 2, 3, ..., etc., and the numbers of the same time positions of each of the carriers 1 and 2 are the same.
  • the numbering is denoted by a in Fig. 3A.
  • the number of the first time position of the subframe is taken as the number of the TTI scheduled by the subframe, specific The determination process is the same as the number determination process of the TTI of 14 symbol lengths in Embodiment 2, and details are not described herein again.
  • the numbers of two discontinuous TTIs scheduled in subframe n+1 and subframe n+2 in carrier 1 are 2 and 5 respectively, and the subframes n, n+2, and subframes in carrier 2 are respectively determined.
  • the numbers of three discontinuous TTIs scheduled in n+3 are 1, 4, and 6, respectively.
  • the method is to divide each position of the minimum length TTI transmitted on the carrier according to the minimum length of the TTI transmitted on the carrier. Also includes:
  • the number of each of the other TTIs is determined by the interval between the subframes and the subframes in which the first TTI is scheduled, wherein the numbers of the TTIs transmitted by the different carriers at the same time are the same.
  • the length of each TTI scheduled in the window is equal, it is identified whether the TTI scheduled in the feedback window is a minimum length TTI. If the TTI is not the minimum length TTI, the time position on the carrier may not be divided.
  • the base station can directly identify the first TTI of all the carrier scheduling, and determine the number of the first TTI.
  • the number of the first TTI is determined to be 1 for the convenience of numbering. . Determining, for the interval of scheduling the subframes of each of the other TTIs and the subframes for scheduling the first TTI, the number of each of the other TTIs according to the first one
  • the number of the TTI is numbered sequentially, and is determined by the interval between the two according to the number. Therefore, in the process of determining the number of the TTI, regardless of whether the scheduled TTI is continuous, the number of the TTI can be determined according to the above manner.
  • the second TTI is numbered 2; and in the subframe n+3
  • the third TTI is scheduled, and the third TTI is numbered 4. Also, the numbers of the TTIs at the same time in each carrier are the same.
  • FIG. 3B is a schematic diagram of a downlink TTI scheduled by a base station when using dual-carrier transmission in the embodiment of the present application.
  • the base station schedules two discontinuous downlink TTIs on the subframe n and the subframe n+3 of the carrier 1 in the carrier 2
  • a downlink TTI is scheduled on the subframe n+1, and the base station indicates that the three TTIs are fed back in the same uplink TTI. Therefore, it can be known that the three consecutive downlink TTIs are located in one feedback window.
  • the downlink TTI scheduled by the subframe n on the carrier 1 in FIG. 3B is the first TTI, and the number of the first TTI is determined to be 1, so the number of the downlink TTI scheduled by the subframe n+3 on the carrier 1 is 4. Since the numbers of the TTIs at the same time in each carrier are the same, it is determined that the number of the downlink TTIs scheduled for the subframe n+1 on the carrier 2 is 2. The number is denoted by a in Fig. 3B.
  • determining a feedback delay of the TTI includes:
  • the minimum time to demodulate and generate feedback information, and the feedback delay is determined based on the shortest TTI length transmitted in the feedback window or based on the minimum TTI length transmitted on the carrier.
  • a minimum feedback delay is pre-stored in the base station, and the base station is configured according to an uplink TTI that feeds back the TTI.
  • the location and the minimum feedback delay may determine the feedback delay of the scheduled TTI.
  • the sequence of determining the scheduled TTI and the sequence of the feedback delay are not limited, and the base station may determine the number of the TTI first, or determine the feedback delay of the TTI.
  • a feedback delay of the TTI according to a time when the TTI is transmitted to the feedback information transmission location and a minimum processing delay, specifically, a time for transmitting the TTI to the feedback information transmission location and the minimum processing
  • the difference in delay is determined as the feedback delay of the TTI.
  • the feedback delay is determined according to the shortest TTI length transmitted in the feedback window, or can be said to be determined in units of the shortest TTI length that can be transmitted on the carrier.
  • the time at which the TTI is transmitted to the feedback information transmission location may be determined according to the shortest TTI length, and the feedback delay may be determined.
  • the minimum TTI length is used, and the time division includes multiple time positions.
  • the number of each time position is as shown in Embodiment 2.
  • the subframe of the uplink TTI to be fed back determined by the base station is subframe n+6, and the interval between the subframe n+6 and the first time position of the subframe n+4 is 4 time positions, and the minimum feedback delay saved by the base station It is 4, so it can be seen that the feedback delay corresponding to the first time position of the subframe n+4 is 0. In this way, as the interval increases, the feedback delays corresponding to each time position are 1, 2, ... 8, respectively.
  • the feedback delay of the TTI scheduled by the subframe n is 8, and the subframe n+
  • the feedback delay of the scheduled TT1 is 6, the feedback delay of the TT1 scheduled by the subframe n+3 is 2, and the feedback delay of the TT1 scheduled by the subframe n+4 is 0.
  • m is used to represent the feedback delay.
  • the base station and the terminal determine the feedback window according to the number of the TTI and the corresponding feedback delay. Specifically, the sum of the number of the TTI and the corresponding feedback delay is determined as a feedback window. In this embodiment, the feedback window is used. Is 9. Further, the feedback codebook size is determined by identifying the transmission mode on the carrier. If it is recognized that the single codeword transmission mode is adopted, the feedback codebook size is 9, and if the dual codeword transmission mode is recognized, the feedback codebook size is 18.
  • the base station determines whether the length of each TTI scheduled in the feedback window is equal before dividing the time position on the carrier according to the saved minimum TTI length. When it is determined that the length of each TTI scheduled in the feedback window is equal, whether the TTI scheduled in the feedback window is a minimum length TTI, and if the TTI is not a minimum length TTI, as shown in FIG.
  • the base station may not divide the time position on the carrier, and the subframe of the uplink TTI that is determined by the base station to be fed back is the subframe n+7, the interval between the subframe n+7 and the subframe n+3 is 4, and the minimum feedback saved by the base station The delay is 4, so it can be seen that the feedback delay corresponding to subframe n+3 is zero.
  • the feedback delay corresponding to each subframe is 1, 2, and 3, respectively.
  • the feedback delay of the TTI scheduled by the frame n is 3, the feedback delay of the TT1 scheduled by the subframe n+1 is 2, the feedback delay of the TT1 scheduled by the subframe n+2 is 1, and the TT1 of the subframe n+3 is scheduled.
  • the feedback delay is 0.
  • the feedback delay is denoted by m in Fig. 2B.
  • the base station and the terminal determine that the feedback window is 4 according to the number of the TTI and the corresponding feedback delay. Further, the feedback codebook size is determined by identifying the transmission mode on the carrier. If the single codeword transmission mode is recognized, the feedback codebook size is 4, and if the dual codeword transmission mode is recognized, the feedback codebook size is 8.
  • the base station uses the single-carrier transmission to schedule the discontinuous downlink TTI
  • the base station uses the single-carrier transmission to schedule the continuous downlink TTI
  • whether the TTI scheduled in the feedback window is a minimum length TTI if the TTI is identified The TTI is not the minimum length TTI. Referring to FIG. 2C, the base station may not divide the feedback window.
  • the subframe of the uplink TTI that is determined by the base station to perform feedback is subframe n+8, subframe n+8 and subframe n+2.
  • the interval 6 and the minimum feedback delay saved by the base station are 6, so that the feedback delay corresponding to the subframe n+2 is 0.
  • the feedback delay corresponding to the subframe n increases as the interval increases. Is 2. Therefore, it can be known that the feedback delay of the TTI scheduled by the subframe n is 3, and the feedback delay of the TT1 scheduled by the subframe n+2 is 0.
  • the base station and the terminal determine that the feedback window is 3 according to the number of the TTI and the corresponding feedback delay. Further, the feedback codebook size is determined by identifying the transmission mode on the carrier. If the single codeword transmission mode is recognized, the feedback codebook size is 3, and if the dual codeword transmission mode is recognized, the feedback codebook size is 6.
  • the base station configures the terminal to use multi-carrier transmission
  • the time position on the carrier is divided, the minimum TTI length is adopted, and the divided includes multiple time positions.
  • the number of each time position is as shown in Embodiment 3.
  • the subframe of the uplink TTI to be fed back determined by the base station is subframe n+5, and the interval between the subframe n+5 and the first position of the subframe n+3 is 4 time positions, and the minimum feedback delay saved by the base station is 4. Therefore, it can be seen that the feedback delay corresponding to the first time position of the subframe n+3 is 0.
  • the feedback delays corresponding to each time position are 1, 2, . . . , respectively, wherein the feedback delays of the same time positions of each subframe of each carrier are the same.
  • the feedback delay is denoted by m in Fig. 3A.
  • the feedback delay of TT1 scheduled by subframe n+1 is 4
  • the feedback delay of the TTI of the second position scheduling of subframe n+2 is 1
  • the second of subframe 2 is the second of carrier 2
  • the delay of the TTI of the location scheduling is 5, and the subframe is delayed.
  • the feedback delay of TT1 scheduled by n+2 is 2, and the feedback delay of TT1 scheduled by the first position of subframe n+3 is 0.
  • the base station and the terminal determine the feedback window according to the number of the TTI and the corresponding feedback delay. Specifically, the sum of the number of the TTI and the corresponding feedback delay is determined as a feedback window. In this embodiment, the feedback window is 6. Further, the feedback codebook size is determined by identifying the transmission mode on the carrier.
  • the feedback codebook size is 12. If the two carriers use the dual codeword transmission mode, the feedback codebook size is 24, If one carrier uses a single codeword transmission mode and another carrier uses a dual codeword transmission mode, the feedback codebook size is 18.
  • the base station when the base station configures the terminal to use multi-carrier transmission, it is determined that all TTIs scheduled by the two carriers in the feedback window are 14 symbol lengths, so the base station may not divide the time position on the carrier, and the base station determines feedback.
  • the subframe of the uplink TTI is subframe n+7
  • the interval between subframe n+7 and subframe n+3 is 4, and the minimum feedback delay saved by the base station is 4, so that the feedback corresponding to subframe n+3 is known.
  • the delay is 0.
  • the feedback delay corresponding to each subframe is 1, 2, and 3, respectively. Therefore, it can be known that the feedback delay of the TTI scheduled by the subframe n in the carrier 1 is 3, and the subframe n+ The feedback delay of the scheduled TT1 is 0, and the feedback delay of the TT1 scheduled by the subframe n+1 in the carrier 2 is 2.
  • the feedback delay is denoted by m in FIG. 3B.
  • the base station and the terminal determine the feedback window according to the number of the TTI and the corresponding feedback delay. Specifically, the sum of the number of the TTI and the corresponding feedback delay is determined as a feedback window. In this embodiment, the feedback window is 4. Further, the feedback codebook size is determined by identifying the transmission mode on the carrier.
  • the feedback codebook size is 8. If both carriers use the dual-codeword transmission mode, the feedback codebook size is 16, if One carrier uses a single codeword transmission mode and the other carrier uses a dual codeword transmission mode, and the feedback codebook size is 12.
  • the method further includes:
  • the number is carried in the downlink scheduling signaling and sent to the terminal.
  • FIG. 4 is a schematic structural diagram of a TTI for a single-carrier transmission and a base station scheduling according to an embodiment of the present disclosure.
  • the base station schedules two discontinuous downlink TTIs, and the base station instructs the two TTIs to perform feedback in the same uplink TTI. Therefore, for the feedback window, according to Embodiment 2, it can be determined that the number t of the TTI scheduled by the subframe n is 1, the feedback delay m is 4, the number a of the TTI scheduled by the subframe n+2 is 3, and the feedback delay m is 2.
  • the minimum feedback delay saved by the base station is 4. Therefore, according to the saved minimum feedback delay 4 and the subframe n+2 of the last TTI in the feedback window, it is determined that the TTI subframe satisfying the minimum processing delay is n+. 6.
  • the subframe n+6 is not the subframe of the uplink TTI in which the feedback is performed, and the subframe of the uplink TTI that is fed back is n+8, so that the subframe of the uplink TTI that is fed back and the TTI that satisfies the minimum processing delay are known.
  • the number x between the two is 2, so the base station carries the number in the downlink scheduling signaling and sends it to the terminal.
  • the number of bits occupied by the number of the TTI carried in the downlink control signaling may be based on the number of the TTI and the feedback delay. determine.
  • the number of bits occupied by the number of the TTI in the downlink scheduling signaling is M is the preset maximum feedback window value.
  • the base station can determine the size of the feedback window for receiving the feedback information according to the TTI number and the feedback delay carried in the downlink scheduling signaling. Specifically, the base station determines the feedback of the TTI according to the number and the feedback delay.
  • the size of the feedback window includes:
  • the sum of the TTI number and the feedback delay is determined as the size of the feedback window.
  • the determining the size of the feedback window according to the TTI number and the feedback delay carried in the downlink scheduling signaling includes:
  • the sum is subtracted from the value as the size of the feedback window.
  • the preset value may be saved in the base station and the terminal, where the size of the feedback window is the sum of the number of the TTI and the feedback delay minus a preset value, where the preset value is for each A TTI pre-defined value for feedback.
  • the size of the feedback window is the sum of the number of the TTI and the feedback delay plus one.
  • the size of the feedback window is the sum of the number of the TTI and the feedback delay minus the preset value plus one, wherein the preset value is a pre-defined value for each feedback TTI. Or the preset value can also be It is a value carried in the downlink scheduling signaling.
  • FIG. 5 is a schematic diagram of a transmission process of feedback information according to an embodiment of the present application. The process includes the following steps:
  • S201 Receive a downlink transmission time interval TTI and corresponding downlink scheduling signaling.
  • S202 Determine, according to the number of the TTI and the feedback delay carried in the downlink scheduling signaling, a feedback window for performing the TTI feedback, and determine feedback information according to the size of the feedback window and the received data information.
  • the base station determines, according to the location of the TTI in the feedback window, that the feedback delay of the TTI is determined by the base station according to the location of the uplink TTI for feedback and the minimum feedback delay.
  • the method for transmitting feedback information provided by the embodiment of the present application is applied to a terminal.
  • the terminal receives the downlink scheduling signaling sent by the base station, where the downlink scheduling signaling carries the number of the TTI scheduled by the base station and the feedback delay of the TTI.
  • the base station may determine the number and feedback delay of the TTI for each downlink TTI scheduled in the same feedback window.
  • the feedback window refers to a set of transmission locations corresponding to all downlink TTIs that are fed back in the feedback resource of the same uplink TTI.
  • the feedback window may include only one downlink TTI, and may include two or more downlink TTIs, and includes
  • the downlink TTI may be continuous or discontinuous. In this consecutive downlink TTI, or discontinuous downlink TTI, there may be data scheduled, or no data may be scheduled.
  • the base station determines the number of each TTI scheduled and the feedback delay, so that the terminal can determine the size of the feedback ACK/NACK feedback window according to the number and the feedback delay, and the base station adopts the feedback.
  • the size of the window receives the feedback information, so that the feedback codebook determined by the base station and the terminal is unified, and the misunderstanding of the ACK/NACK codebook size between the base station and the terminal is avoided, and the process does not need to determine the ACK according to the maximum possible feedback.
  • /NACK codebook size improves the performance of ACK/NACK feedback.
  • the base station After determining the number of the TTI and the feedback delay, the base station sends downlink scheduling signaling to the terminal, where the downlink scheduling signaling carries the number of the TTI determined by the base station and the feedback delay of the TTI.
  • the terminal After receiving the downlink scheduling signaling, the terminal may determine, according to the TTI number and the feedback delay of the TTI, the feedback confirmation information or the non-acknowledgment information ACK/NACK.
  • the size of the feedback window the terminal determines the feedback information according to the size of the feedback window and the received data information. Specifically, in the embodiment of the present application, when determining the size of the feedback window, the terminal may use the sum of the TTI number and the feedback delay as the size of the feedback window.
  • the determining, according to the TTI number and the feedback delay carried in the downlink scheduling signaling, determining a feedback window for performing the TTI feedback includes:
  • the sum of the number of the TTI and the feedback delay is subtracted from the preset value as the size of the feedback window, and the preset value is a predefined value of the TTI for each feedback or a downlink scheduling signal.
  • Embodiment 5 when the terminal receives the downlink scheduling signaling carrying the number, determining, according to the TTI number, the feedback delay, and the number, determining the ACK/NACK for feedback. Feedback window.
  • the determining, according to the TTI number, the feedback delay, and the number, determining a feedback window for performing ACK/NACK feedback includes:
  • the difference between the sum and the number is determined as a feedback window of the ACK/NACK for feedback.
  • the predefined values may be saved in the base station and the terminal.
  • the sum of the TTI number and the feedback delay may be subtracted from the preset value as the size of the feedback window.
  • the foregoing is carried according to the scheduled scheduling signaling.
  • the TTI number and the feedback delay determine the feedback window for performing the TTI feedback including:
  • the sum of the number of the TTI and the feedback delay is subtracted from the preset value by 1 as the size of the feedback window, and the preset value is a predefined value of the TTI for each feedback or The value of the dynamic indication of the downlink scheduling signaling.
  • determining the feedback information according to the size of the feedback window and the received data information includes:
  • the feedback codebook is sorted according to the order of the TTIs in the feedback window, and the NTI/DTX information is filled in the corresponding position for the TTI that does not receive the information;
  • the feedback codebooks are sequentially sorted according to the shortest TTI transmitted in the feedback window, and the NACK/DTX information is padded at the corresponding location for the TTI that has not received the information.
  • determining the feedback information according to the size of the feedback window and the received data information includes:
  • the feedback codebook is sorted according to the order of the TTIs in the feedback window, and the feedback codebook is determined according to the carrier sequence cascade;
  • the feedback codebook is transmitted according to the most in the feedback window.
  • the short TTI performs sequential ordering, and the NTI/DTX information is padded at the corresponding location for the TTI that has not received the information, and the feedback codebook is determined according to the carrier sequence cascade.
  • the ordering of the feedback codebooks according to the shortest TTI transmitted in the feedback window includes:
  • FIG. 6 is a schematic structural diagram of a device for transmitting feedback information according to an embodiment of the present disclosure, which is applied to a base station, where the device includes:
  • a determining module 61 configured to determine a number and a feedback delay of the TTI for each downlink transmission time interval TTI scheduled;
  • the sending module 62 is configured to carry the number and the feedback delay of the TTI in the downlink scheduling signaling, and send the terminal to the terminal, so that the terminal determines a feedback window for feeding back the TTI according to the number and the feedback delay. Size; receive feedback information according to the size of the feedback window.
  • the determining module 61 includes:
  • the first determining unit 611 is configured to determine, according to the location of the downlink TTI in the feedback window, the number of the TTI, where the feedback window refers to all downlink TTIs that are fed back in the feedback resource of the same uplink TTI. A collection of transmission locations.
  • the first determining unit 611 is specifically configured to: when it is determined that the configuration terminal uses single carrier transmission, divide a time position on the carrier according to the minimum TTI length according to the minimum TTI length transmitted on the carrier; and identify the The first time position of the TTI is scheduled in the feedback window, and the number of the first time position is determined; the other time positions are numbered according to the interval between the other time positions and the first time position, where The difference between the number of the other time position and the number of the first time position is the number of the minimum TTI length included in the interval; determining the number of the TTI according to the number of the time position corresponding to the scheduled TTI .
  • the first determining unit 611 is specifically configured to divide time positions on all carriers according to the minimum TTI length according to the minimum TTI length transmitted on all carriers; and identify that all carriers in the feedback window schedule the first TTI a time position, determining a number of the first time position; numbering each of the other time positions according to an interval of each of the other time positions from the first time position, wherein the other time positions are The difference between the number and the number of the first time position is the number of minimum TTI lengths included in the interval; and the number of the TTI is determined according to the number of the time position corresponding to the scheduled TTI.
  • the first determining unit 611 when specifically configured to schedule the TTI to occupy a time position, determine the scheduled The number of the TTI is the number of the occupied time position; when the scheduled TTI occupies more than one time position, it is determined that the number of the scheduled TTI is the first time position of the one or more time positions. Numbering.
  • the determining module 61 further includes:
  • a second determining unit 612 configured to determine a difference between a time when the TTI is transmitted to the feedback information transmission location and a minimum processing delay, where the difference is determined as a feedback delay of the TTI, where the minimum processing time
  • the delay is a minimum time for the terminal to demodulate and generate feedback information after receiving the data packet, and the feedback delay is determined according to the shortest TTI length transmitted in the feedback window or according to the minimum TTI length transmitted on the carrier.
  • FIG. 7 is a schematic structural diagram of a device for transmitting feedback information according to another embodiment of the present application, which is applied to a terminal, where the device includes:
  • the receiving module 71 is configured to receive a downlink transmission time interval TTI and corresponding downlink scheduling signaling;
  • the determining module 72 is configured to determine, according to the number of the TTI and the feedback delay carried in the downlink scheduling signaling, a feedback window for performing the TTI feedback, and according to the size of the feedback window and the received data information. Determine feedback.
  • the determining module 72 is specifically configured to determine a sum of the number of the TTI and the feedback delay as a feedback window for performing the TTI feedback; or determine a sum of the number of the TTI and a feedback delay; And subtracting the preset value as the size of the feedback window, wherein the preset value is a predefined value of TTI for each feedback, or a value carried in the downlink scheduling signaling.
  • the determining module 72 is further configured to: when a semi-persistent SPS transmission is configured on the carrier, and when there is an SPS periodic transmission TTI in the feedback window, add a 1 of the TTI number and the feedback delay as the feedback window. Or the size of the TTI and the feedback delay minus the preset value plus 1 as the size of the feedback window, the preset value being predefined for each feedback TTI The value or the value dynamically indicated by the downlink scheduling signaling.
  • the determining module 72 is specifically configured to: when a single carrier transmission is configured, if the carrier includes only one length of TTI, the feedback codebook is sorted according to the TTI in the feedback window, and the TTI that does not receive the information is The corresponding location fills the NACK/DTX information; if the carrier transmits at least two lengths of TTI, the feedback codebook is sequentially sorted according to the shortest TTI transmitted in the feedback window, and the TTI that does not receive the information fills the NACK in the corresponding location. DTX information.
  • the determining module 72 is specifically configured to: when configured for multi-carrier transmission, if each carrier includes only one TTI of a length, the feedback codebook is sorted according to the sequence of TTIs in the feedback window, and according to the carrier The sequential cascading determines the feedback codebook; for each carrier, if at least two lengths of TTI are transmitted on the carrier, the feedback codebook is sequentially sorted according to the shortest TTI transmitted in the feedback window, and the TTI that does not receive the information is corresponding. The location fills the NACK/DTX information, and the feedback codebook is determined in cascade according to the carrier order.
  • the determining module 72 is specifically configured to feed back a first or last shortest TTI included in the first length TTI for a TTI of a first length greater than a shortest TTI length, and fill the NACK/ at other locations. DTX information; or, for a TTI of a first length greater than the shortest TTI length, repeated feedback is performed in all of the shortest length TTI locations contained within the first length TTI.
  • An embodiment of the present application provides a transmission system for feedback information, where the system includes a transmission device for feedback information applied to a base station as shown in FIG. 6, and a transmission device for feedback information applied to the terminal as shown in FIG. .
  • FIG. 8 is a schematic structural diagram of a device for transmitting feedback information according to an embodiment of the present disclosure, which is applied to a base station, where the device includes:
  • the processor 801 is configured to send and receive data through the transceiver 802, and read the program in the memory 804, and perform the following process:
  • the size of the feedback window receives feedback information.
  • the transceiver 802 is configured to receive and transmit data.
  • the processor 801 is further configured to determine a number of the TTI according to a location of the downlink TTI in a feedback window, where the feedback window refers to feedback in a feedback resource of the same uplink TTI.
  • the feedback window refers to feedback in a feedback resource of the same uplink TTI.
  • the processor 801 is specifically configured to:
  • the configuration terminal adopts single carrier transmission, according to the minimum TTI length transmitted on the carrier, the time position on the carrier is divided according to the minimum TTI length; and the first time in which the TTI is scheduled in the feedback window is identified. Positioning, determining a number of the first time position; numbering the other time positions according to an interval of the other time positions from the first time position, wherein the number of the other time positions is the first number The difference of the number of time positions is the number of minimum TTI lengths included in the interval; the number of the TTI is determined according to the number of time positions corresponding to the scheduled TTI.
  • the processor 801 is specifically configured to divide time positions on all carriers according to the minimum TTI length according to a minimum TTI length transmitted on all carriers; and identify that all carriers in the feedback window are scheduled by TTI.
  • a first time position determining a number of the first time position; numbering each of the other time positions according to an interval of each of the other time positions from the first time position, wherein the other time The difference between the number of the location and the number of the first time location is the number of minimum TTI lengths included in the interval; and the number of the TTI is determined according to the number of the time position corresponding to the scheduled TTI.
  • the processor 801 is configured to: when the scheduled TTI occupies a time position, determine that the number of the scheduled TTI is the number of the occupied time position; the scheduled TTI occupies more than one The time position determines that the number of the scheduled TTI is the number of the first time position in the one or more time positions.
  • the processor 801 is further configured to determine a difference between a time when the TTI is transmitted to the feedback information transmission location and a minimum processing delay, and determine the difference as a feedback delay of the TTI, where
  • the minimum processing delay is a minimum time for the terminal to demodulate and generate feedback information after receiving the data packet, and the feedback delay is determined according to the shortest TTI length transmitted in the feedback window or according to the minimum TTI length transmitted on the carrier. determine.
  • bus 800 may include any number of interconnected buses and bridges, and bus 800 will include one or more processors represented by processor 801 and memory represented by memory 804. The various circuits are linked together.
  • the bus 800 can also link various other circuits, such as peripherals, voltage regulators, and power management circuits, as is known in the art, and therefore, will not be further described herein.
  • Bus interface 803 provides an interface between bus 800 and transceiver 802.
  • Transceiver 802 can be an element or a plurality of elements, such as multiple receivers and transmitters, providing means for communicating with various other devices on a transmission medium.
  • Data processed by processor 801 is transmitted over wireless medium via antenna 805. Further, antenna 805 also receives the data and transmits the data to processor 801.
  • the processor 801 is responsible for managing the bus 800 and the usual processing, and can also provide various functions including timing, peripheral interfaces, voltage regulation, power management, and other control functions.
  • the memory 804 can be used to store data used by the processor 801 when performing operations.
  • the processor 801 may be a CPU (Central Embedded Device), an ASIC (Application Specific Integrated Circuit), an FPGA (Field-Programmable Gate Array), or a CPLD (Complex Programmable Logic Device). , complex programmable logic devices).
  • CPU Central Embedded Device
  • ASIC Application Specific Integrated Circuit
  • FPGA Field-Programmable Gate Array
  • CPLD Complex Programmable Logic Device
  • FIG. 9 is a schematic structural diagram of a device for transmitting feedback information according to another embodiment of the present application, which is applied to a terminal, where the device includes:
  • the processor 901 is configured to send and receive data through the transceiver 902, and read the program in the memory 904, and perform the following process:
  • the transceiver 902 is configured to receive and transmit data.
  • the processor 901 is specifically configured to determine a sum of the number of the TTI and the feedback delay as a feedback window for performing the TTI feedback; or determine a sum of the number of the TTI and a feedback delay. ; subtract the preset from the sum The value is used as the size of the feedback window, wherein the preset value is a pre-defined value for each feedback TTI, or a value carried in the downlink scheduling signaling.
  • the processor 901 is further configured to: when a semi-persistent SPS transmission is configured on the carrier, and when there is an SPS periodic transmission TTI in the feedback window, add the sum of the TTI number and the feedback delay to The size of the feedback window; or, the sum of the TTI number and the feedback delay is subtracted from the preset value by 1 as the size of the feedback window, and the preset value is for each feedback.
  • the TTI pre-defined value or the value dynamically indicated by the downlink scheduling signaling.
  • the processor 901 is specifically configured to: when a single carrier transmission is configured, if the carrier only includes a TTI of a length, the feedback codebook is sorted according to the sequence of the TTI in the feedback window, and is not received.
  • the TTI of the information fills the NACK/DTX information at the corresponding location; if the TTI of the at least two lengths is transmitted on the carrier, the feedback codebook is sequentially sorted according to the shortest TTI transmitted in the feedback window, and the TTI that does not receive the information is corresponding.
  • the location fills in NACK/DTX information.
  • the processor 901 is specifically configured to: when configured for multi-carrier transmission, for each carrier, if the carrier only includes one length of TTI, the feedback codebook is sorted according to the TTI of the feedback window. And determining, according to the carrier sequence, the feedback codebook; for each carrier, if at least two lengths of TTI are transmitted on the carrier, the feedback codebook is sequentially sorted according to the shortest TTI transmitted in the feedback window, and the information is not received.
  • the TTI fills the NACK/DTX information at the corresponding location, and determines the feedback codebook in cascade according to the carrier sequence.
  • the processor 901 is configured to perform feedback on a first or last shortest TTI included in the first length TTI for a TTI of a first length that is greater than a shortest TTI length.
  • the location fills the NACK/DTX information; or, for the TTI of the first length greater than the shortest TTI length, repeated feedback is performed in all of the shortest length TTI locations included in the first length TTI.
  • bus 900 may include any number of interconnected buses and bridges, and bus 900 will include one or more processors and memory 904 represented by general purpose processor 901. The various circuits of the memory are linked together.
  • the bus 900 can also link various other circuits, such as peripherals, voltage regulators, and power management circuits, as is known in the art, and therefore, will not be further described herein.
  • Bus interface 903 provides an interface between bus 900 and transceiver 902.
  • Transceiver 902 can be an element or a plurality of elements, such as a plurality of receivers and transmitters, providing means for communicating with various other devices on a transmission medium.
  • transceiver 902 receives external data from other devices.
  • the transceiver 902 is configured to send the processed data of the processor 901 to other devices.
  • a user interface 905 can also be provided, such as a keypad, display, speaker, microphone, joystick.
  • the processor 901 is responsible for managing the bus 900 and the usual processing, running a general purpose operating system as described above. And storage The 904 can be used to store data used by the processor 901 in performing operations.
  • the processor 901 can be a CPU, an ASIC, an FPGA, or a CPLD.
  • An embodiment of the present application provides a method, an apparatus, and a system for transmitting feedback information, where the method includes: determining, for each downlink transmission time interval TTI, the number and feedback delay of the TTI; The number and the feedback delay are sent to the terminal in the downlink scheduling signaling, so that the terminal determines the size of the feedback window for performing the TTI feedback according to the number and the feedback delay, and receives according to the size of the feedback window. Feedback.
  • the base station determines the number of each TTI scheduled and the feedback delay, so that the terminal can determine the size of the feedback ACK/NACK feedback window according to the number and the feedback delay, and the base station adopts the feedback.
  • the size of the window receives the feedback information, so that the feedback codebook determined by the base station and the terminal is unified, and the misunderstanding of the ACK/NACK codebook size between the base station and the terminal is avoided, and the process does not need to determine the ACK according to the maximum possible feedback.
  • /NACK codebook size improves the performance of ACK/NACK feedback.
  • 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

本申请公开一种反馈信息的传输方法、装置及系统,该方法包括:针对调度的每个下行传输时间间隔TTI,确定所述TTI的编号和反馈时延;将所述TTI的编号及反馈时延携带在下行调度信令中发送给终端,使所述终端根据所述编号及反馈时延,确定进行所述TTI反馈的反馈窗口,并根据所述反馈窗口的大小接收反馈信息。由于在本申请实施例中,基站确定了调度的每个TTI的编号及反馈时延,使得终端能够根据编号和反馈时延确定进行反馈的ACK/NACK的反馈窗口的大小,并且基站采用该反馈窗口的大小接收反馈信息,因此,使得基站和终端确定的反馈码本统一,避免了基站和终端之间对ACK/NACK码本大小产生的误解。

Description

一种反馈信息的传输方法、装置及系统
本申请要求在2016年8月12日提交中国专利局、申请号为201610666592.X、申请名称为“一种反馈信息的传输方法、装置及系统”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
本申请涉及移动通信技术领域,尤其涉及一种反馈信息的传输方法、装置及系统。
背景技术
随着移动通信技术的发展,国际电信组织(ITU)对移动通信系统定义了更高的用户时延性能的要求,为了满足该用户时延性能,现在主要的方法是缩短部分传输时间间隔(Transmission Time Interval,TTI)。部分TTI缩短后,在系统中会出现不同长度的TTI,而根据不同长度的TTI确定反馈的确认信息(ACK)或非确认信息(NACK)码本大小时,现有技术中存在一定的问题。
在现有的移动通信系统长期演进(Long Term Evolution,LTE)中,对于单载波传输,LTE系统中使用bundling(绑定)或者multiplexing(复用)的方案进行反馈,总是按照最大的可能确定反馈的ACK/NACK码本大小,使得ACK/NACK反馈的性能较差。对于多载波传输,LTE系统中使用PUCCH format 1b with channel selection进行反馈时,使用PUCCH format 3(PUCCH:Physical Uplink Control CHannel,物理上行链路控制信道)进行反馈时,也是按照最大的可能确定反馈的ACK/NACK码本大小,也使得ACK/NACK反馈的性能较差。
使用PUCCH format 4/5进行反馈时,支持固定的和动态的反馈码本大小,使用固定码本大小时,也是按照最大的可能确定反馈的ACK/NACK码本大小,同样使得ACK/NACK反馈的性能较差;使用动态的码本大小时,在下行调度信令中使用2比特携带counter DAI,counter DAI用于指示调度子帧/载波数,还有2比特携带total DAI,total DAI用于指示到当前子帧为止的总调度子帧/载波数,但该counter DAI和total DAI只针对较长的TTI进行反馈,因此会导致基站和终端之间对ACK/NACK码本大小产生误解。
发明内容
本申请实施例提供一种反馈信息的传输方法、装置及系统,用以解决现有技术 ACK/NACK反馈的性能较差,基站和终端之间对ACK/NACK码本大小产生误解的问题。
为达到上述目的,本申请实施例提供了一种反馈信息的传输方法,应用于基站,包括:
针对调度的每个下行传输时间间隔TTI,确定所述TTI的编号和反馈时延;
将所述TTI的编号及反馈时延携带在下行调度信令中发送给终端,使所述终端根据所述编号及反馈时延,确定对所述TTI进行反馈的反馈窗口的大小;
根据所述反馈窗口的大小接收反馈信息。
进一步地,所述确定所述TTI的编号包括:
根据所述下行TTI在反馈窗口中的位置,确定所述TTI的编号,其中,所述反馈窗口指在同一上行TTI的反馈资源中进行反馈的所有下行TTI对应的传输位置集合。
进一步地,当基站配置终端采用单载波传输时,所述根据所述下行TTI在反馈窗口中的位置,确定所述TTI的编号包括:
根据所述载波上传输的最小TTI长度,按照该最小TTI长度对载波上的时间位置进行划分;
识别所述反馈窗口中调度了TTI的第一个时间位置,确定所述第一个时间位置的编号;
根据其他时间位置与所述第一个时间位置的间隔,对所述其他时间位置进行编号,其中所述其他时间位置的编号与所述第一个时间位置的编号的差值为所述间隔包含的最小TTI长度的个数;
根据所调度的TTI对应的时间位置的编号,确定所述TTI的编号。
进一步地,当基站配置终端采用多载波传输时,所述根据所述下行TTI在反馈窗口中的位置,确定所述TTI的编号包括:
根据所有载波上传输的最小TTI长度,按照该最小TTI长度对所有载波上的时间位置进行划分;
识别所述反馈窗口中所有载波调度了TTI的第一个时间位置,确定所述第一个时间位置的编号;
根据每个其他时间位置与所述第一个时间位置的间隔,对所述每个其他时间位置进行编号,其中所述其他时间位置的编号与所述第一个时间位置的编号的差值为所述间隔包含的最小TTI长度的个数;
根据所调度的TTI对应的时间位置的编号,确定所述TTI的编号。
进一步地,所述根据所调度的TTI对应的时间位置的编号,确定所述TTI的编号包括:
调度的所述TTI占用一个时间位置时,确定调度的所述TTI的编号为所占用的时间位置的编号;
调度的所述TTI占用一个以上的时间位置时,确定调度的所述TTI的编号为所述一个以上的时间位置中第一个时间位置的编号。
进一步地,确定的所述第一个时间位置的编号为1。
进一步地,确定所述TTI的反馈时延包括:
确定所述TTI传输至反馈信息传输位置的时间和最小处理时延的差值,将所述差值确定为所述TTI的反馈时延,其中所述最小处理时延为终端接收到数据包后解调并生成反馈信息的最小时间,且所述反馈时延根据所述反馈窗口中传输的最短TTI长度确定或根据载波上传输的最小TTI长度确定。
进一步地,所述下行调度信令中所述TTI的编号占用的比特数为
Figure PCTCN2017088486-appb-000001
M为预设的最大的反馈窗口值。
进一步地,所述反馈窗口的大小为所述TTI的编号和反馈时延的和;或
所述反馈窗口的大小为所述TTI的编号与反馈时延的和减去预设的数值,其中,所述预设的数值为针对每个反馈的TTI预先定义的数值。
进一步地,当载波上配置了半永久性SPS传输,且在反馈窗口中存在SPS周期传输TTI时,所述反馈窗口的大小为所述TTI的编号与反馈时延的和加1;或
所述反馈窗口的大小为所述TTI的编号与反馈时延的和减去预设的数值后再加1,其中,所述预设的数值为针对每个反馈的TTI预先定义的数值。
另一方面,本申请实施例一种反馈信息的传输方法,应用于终端,所述方法包括:
接收下行传输时间间隔TTI和对应的下行调度信令;
根据所述下行调度信令中携带的所述TTI的编号及反馈时延,确定进行所述TTI反馈的反馈窗口,并根据所述反馈窗口的大小和接收到的数据信息确定反馈信息。
进一步地,所述根据所述下行调度信令中携带的所述TTI的编号及反馈时延,确定进行所述TTI反馈的反馈窗口包括:
将所述TTI的编号与反馈时延的和确定为进行所述TTI反馈的反馈窗口;或
确定所述TTI的编号和反馈时延的和;将所述和减去预设的数值作为所述反馈窗口的大小,其中所述预设的数值为针对每个反馈的TTI预先定义的数值,或所述下行调度信令中携带的数值。
进一步地,当载波上配置了半永久性SPS传输,且在反馈窗口中存在SPS周期传输TTI时,所述根据下定调度信令中携带的TTI的编号及反馈时延,确定进行所述TTI反馈的反馈窗口包括:
将所述TTI的编号和反馈时延的和加1作为所述反馈窗口的大小;
或者,将所述TTI的编号和反馈时延的和减去预设的数值后加1作为所述反馈窗口的大小,所述预设的数值为针对每个反馈的TTI预先定义的数值或者通过下行调度信令动态指示的数值。
进一步地,当配置了单载波传输时,所述根据所述反馈窗口的大小和接收到的数据信息确定反馈信息包括:
若载波上只包含一种长度的TTI,反馈码本根据反馈窗口中的TTI的前后顺序排序,对没有收到信息的TTI在对应的位置填补NACK/DTX信息;
若载波上传输至少两种长度的TTI时,反馈码本按照反馈窗口中传输的最短TTI进行顺序排序,对没有收到信息的TTI在对应的位置填补NACK/DTX信息。
进一步地,当配置了多载波传输时,所述根据所述反馈窗口的大小和接收到的数据信息确定反馈信息包括:
针对每个载波,若载波上只包含一种长度的TTI,反馈码本根据反馈窗口中的TTI的前后顺序排序,并按照载波顺序级联确定反馈码本;
针对每个载波,若载波上传输至少两种长度的TTI时,反馈码本按照反馈窗口中传输的最短TTI进行顺序排序,对没有收到信息的TTI在对应的位置填补NACK/DTX信息,并按照载波顺序级联确定反馈码本。
进一步地,所述反馈码本按照反馈窗口中传输的最短TTI进行顺序排序包括:
针对大于最短TTI长度的第一长度的TTI,在所述第一长度TTI内所包含的第一个或最后一个最短TTI的位置进行反馈,其他位置填补NACK/DTX信息;或
针对大于最短TTI长度的第一长度的TTI,在所述第一长度TTI内所包含的所有最短长度的TTI位置中进行重复反馈。
再一方面,本申请实施例提供了一种反馈信息的传输装置,所述装置包括:
确定模块,用于针对调度的每个下行传输时间间隔TTI,确定所述TTI的编号和反馈时延;
发送模块,用于将所述TTI的编号及反馈时延携带在下行调度信令中发送给终端,使所述终端根据所述编号及反馈时延,确定对所述TTI进行反馈的反馈窗口的大小;根据所述反馈窗口的大小接收反馈信息。
进一步地,所述确定模块包括:
第一确定单元,用于根据所述下行TTI在反馈窗口中的位置,确定所述TTI的编号,其中,所述反馈窗口指在同一上行TTI的反馈资源中进行反馈的所有下行TTI对应的传输位置集合。
进一步地,所述第一确定单元,具体用于当识别到配置终端采用单载波传输时,根据所述载波上传输的最小TTI长度,按照该最小TTI长度对载波上的时间位置进行划分;识别所述反馈窗口中调度了TTI的第一个时间位置,确定所述第一个时间位置的编号;根据其他时间位置与所述第一个时间位置的间隔,对所述其他时间位置进行编号,其中所述其他时间位置的编号与所述第一个时间位置的编号的差值为所述间隔包含的最小TTI长度的个数;根据所调度的TTI对应的时间位置的编号,确定所述TTI的编号。
进一步地,所述第一确定单元,具体用于根据所有载波上传输的最小TTI长度,按照该最小TTI长度对所有载波上的时间位置进行划分;识别所述反馈窗口中所有载波调度了TTI的第一个时间位置,确定所述第一个时间位置的编号;根据每个其他时间位置与所述第一个时间位置的间隔,对所述每个其他时间位置进行编号,其中所述其他时间位置的编号与所述第一个时间位置的编号的差值为所述间隔包含的最小TTI长度的个数;根据所调度的TTI对应的时间位置的编号,确定所述TTI的编号。
进一步地,所述第一确定单元,具体用于调度的所述TTI占用一个时间位置时,确定调度的所述TTI的编号为所占用的时间位置的编号;调度的所述TTI占用一个以上的时间位置时,确定调度的所述TTI的编号为所述一个以上的时间位置中第一个时间位置的编号。
进一步地,所述确定模块还包括:
第二确定单元,用于确定所述TTI传输至反馈信息传输位置的时间和最小处理时延的差值,将所述差值确定为所述TTI的反馈时延,其中所述最小处理时延为终端接收到数据包后解调并生成反馈信息的最小时间,且所述反馈时延根据所述反馈窗口中传输的最短TTI长度确定或根据载波上传输的最小TTI长度确定。
本申请实施例还提供了一种反馈信息的传输装置,所述装置包括:
接收模块,用于接收下行传输时间间隔TTI和对应的下行调度信令;
确定模块,用于根据所述下行调度信令中携带的所述TTI的编号及反馈时延,确定进行所述TTI反馈的反馈窗口,并根据所述反馈窗口的大小和接收到的数据信息确定反馈信息。
进一步地,所述确定模块,具体用于将所述TTI的编号与反馈时延的和确定为进行所述TTI反馈的反馈窗口;或,确定所述TTI的编号和反馈时延的和;将所述和减去预设的数值作为所述反馈窗口的大小,其中所述预设的数值为针对每个反馈的TTI预先定义的数值,或所述下行调度信令中携带的数值。
进一步地,所述确定模块,还用于当载波上配置了半永久性SPS传输,且在反馈窗口中存在SPS周期传输TTI时,将所述TTI的编号和反馈时延的和加1作为所述反馈窗口 的大小;或者,将所述TTI的编号和反馈时延的和减去预设的数值后加1作为所述反馈窗口的大小,所述预设的数值为针对每个反馈的TTI预先定义的数值或者通过下行调度信令动态指示的数值。
进一步地,所述确定模块,具体用于当配置了单载波传输时,若载波上只包含一种长度的TTI,反馈码本根据反馈窗口中的TTI的前后顺序排序,对没有收到信息的TTI在对应的位置填补NACK/DTX信息;若载波上传输至少两种长度的TTI时,反馈码本按照反馈窗口中传输的最短TTI进行顺序排序,对没有收到信息的TTI在对应的位置填补NACK/DTX信息。
进一步地,所述确定模块,具体用于当配置了多载波传输时,针对每个载波,若载波上只包含一种长度的TTI,反馈码本根据反馈窗口中的TTI的前后顺序排序,并按照载波顺序级联确定反馈码本;针对每个载波,若载波上传输至少两种长度的TTI时,反馈码本按照反馈窗口中传输的最短TTI进行顺序排序,对没有收到信息的TTI在对应的位置填补NACK/DTX信息,并按照载波顺序级联确定反馈码本。
进一步地,所述确定模块,具体用于针对大于最短TTI长度的第一长度的TTI,在所述第一长度TTI内所包含的第一个或最后一个最短TTI的位置进行反馈,其他位置填补NACK/DTX信息;或,针对大于最短TTI长度的第一长度的TTI,在所述第一长度TTI内所包含的所有最短长度的TTI位置中进行重复反馈。
本申请实施例提供了一种反馈信息的传输系统,所述系统包括如上应用于基站的反馈信息的传输装置,及如上任一项应用于终端的反馈信息的传输装置。
本申请实施例还提供了一种反馈信息的传输装置,所述装置包括:
处理器,用于通过收发机发送和接收数据,并读取存储器中的程序,执行下列过程:
针对调度的每个下行传输时间间隔TTI,确定所述TTI的编号和反馈时延;
将所述TTI的编号及反馈时延携带在下行调度信令中发送给终端,使所述终端根据所述编号及反馈时延,确定对所述TTI进行反馈的反馈窗口的大小;根据所述反馈窗口的大小接收反馈信息。
收发机,用于接收和发送数据。
可选的,所述处理器,还用于根据所述下行TTI在反馈窗口中的位置,确定所述TTI的编号,其中,所述反馈窗口指在同一上行TTI的反馈资源中进行反馈的所有下行TTI对应的传输位置集合。
可选的,所述处理器具体用于:
当识别到配置终端采用单载波传输时,根据所述载波上传输的最小TTI长度,按照该 最小TTI长度对载波上的时间位置进行划分;识别所述反馈窗口中调度了TTI的第一个时间位置,确定所述第一个时间位置的编号;根据其他时间位置与所述第一个时间位置的间隔,对所述其他时间位置进行编号,其中所述其他时间位置的编号与所述第一个时间位置的编号的差值为所述间隔包含的最小TTI长度的个数;根据所调度的TTI对应的时间位置的编号,确定所述TTI的编号。
可选的,所述处理器,具体用于根据所有载波上传输的最小TTI长度,按照该最小TTI长度对所有载波上的时间位置进行划分;识别所述反馈窗口中所有载波调度了TTI的第一个时间位置,确定所述第一个时间位置的编号;根据每个其他时间位置与所述第一个时间位置的间隔,对所述每个其他时间位置进行编号,其中所述其他时间位置的编号与所述第一个时间位置的编号的差值为所述间隔包含的最小TTI长度的个数;根据所调度的TTI对应的时间位置的编号,确定所述TTI的编号。
可选的,所述处理器,具体用于调度的所述TTI占用一个时间位置时,确定调度的所述TTI的编号为所占用的时间位置的编号;调度的所述TTI占用一个以上的时间位置时,确定调度的所述TTI的编号为所述一个以上的时间位置中第一个时间位置的编号。
可选的,所述处理器,还用于确定所述TTI传输至反馈信息传输位置的时间和最小处理时延的差值,将所述差值确定为所述TTI的反馈时延,其中所述最小处理时延为终端接收到数据包后解调并生成反馈信息的最小时间,且所述反馈时延根据所述反馈窗口中传输的最短TTI长度确定或根据载波上传输的最小TTI长度确定。
本申请实施例还提供了一种反馈信息的传输装置,所述装置包括:
处理器,用于通过收发机发送和接收数据,并读取存储器中的程序,执行下列过程:
接收下行传输时间间隔TTI和对应的下行调度信令;根据所述下行调度信令中携带的所述TTI的编号及反馈时延,确定进行所述TTI反馈的反馈窗口,并根据所述反馈窗口的大小和接收到的数据信息确定反馈信息。
收发机,用于接收和发送数据。
可选的,所述处理器,具体用于将所述TTI的编号与反馈时延的和确定为进行所述TTI反馈的反馈窗口;或,确定所述TTI的编号和反馈时延的和;将所述和减去预设的数值作为所述反馈窗口的大小,其中所述预设的数值为针对每个反馈的TTI预先定义的数值,或所述下行调度信令中携带的数值。
可选的,所述处理器,还用于当载波上配置了半永久性SPS传输,且在反馈窗口中存在SPS周期传输TTI时,将所述TTI的编号和反馈时延的和加1作为所述反馈窗口的大小;或者,将所述TTI的编号和反馈时延的和减去预设的数值后加1作为所述反馈窗口的 大小,所述预设的数值为针对每个反馈的TTI预先定义的数值或者通过下行调度信令动态指示的数值。
可选的,所述处理器,具体用于当配置了单载波传输时,若载波上只包含一种长度的TTI,反馈码本根据反馈窗口中的TTI的前后顺序排序,对没有收到信息的TTI在对应的位置填补NACK/DTX信息;若载波上传输至少两种长度的TTI时,反馈码本按照反馈窗口中传输的最短TTI进行顺序排序,对没有收到信息的TTI在对应的位置填补NACK/DTX信息。
可选的,所述处理器,具体用于当配置了多载波传输时,针对每个载波,若载波上只包含一种长度的TTI,反馈码本根据反馈窗口中的TTI的前后顺序排序,并按照载波顺序级联确定反馈码本;针对每个载波,若载波上传输至少两种长度的TTI时,反馈码本按照反馈窗口中传输的最短TTI进行顺序排序,对没有收到信息的TTI在对应的位置填补NACK/DTX信息,并按照载波顺序级联确定反馈码本。
可选的,所述处理器,具体用于针对大于最短TTI长度的第一长度的TTI,在所述第一长度TTI内所包含的第一个或最后一个最短TTI的位置进行反馈,其他位置填补NACK/DTX信息;或,针对大于最短TTI长度的第一长度的TTI,在所述第一长度TTI内所包含的所有最短长度的TTI位置中进行重复反馈。
本申请公开一种反馈信息的传输方法、装置及系统,该方法包括:针对调度的每个下行传输时间间隔TTI,确定所述TTI的编号和反馈时延;将所述TTI的编号及反馈时延携带在下行调度信令中发送给终端,使所述终端根据所述编号及反馈时延,确定进行所述TTI反馈的反馈窗口的大小,并根据所述反馈窗口的大小接收反馈信息。由于在本申请实施例中,基站确定了调度的每个TTI的编号及反馈时延,使得终端能够根据编号和反馈时延确定进行反馈的ACK/NACK的反馈窗口的大小,并且基站采用该反馈窗口的大小接收反馈信息,因此,使得基站和终端确定的反馈码本统一,避免了基站和终端之间对ACK/NACK码本大小产生的误解,而且该过程无需按照最大的可能确定反馈的ACK/NACK码本大小,提高了ACK/NACK反馈的性能。
附图说明
为了更清楚地说明本申请实施例中的技术方案,下面将对实施例描述中所需要使用的附图作简要介绍,显而易见地,下面描述中的附图仅仅是本申请的一些实施例,对于本领域的普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。
图1为本申请实施例提供一种反馈信息的传输过程示意图;
图2A-2C为实施例2中的反馈信息的传输示意图;
图3A-3B为实施例3的反馈信息的传输示意图;
图4为实施例6中的反馈信息的传输示意图;
图5为本申请另一实施例提供一种反馈信息的传输过程示意图;
图6为本申请实施例提供一种反馈信息的传输装置结构示意图;
图7为本申请另一实施例提供一种反馈信息的传输装置结构示意图;
图8为本申请实施例提供一种反馈信息的传输装置结构示意图;
图9为本申请另一实施例提供一种反馈信息的传输装置结构示意图。
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份实施例,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。
实施例1:
图1为本申请实施例提供一种反馈信息的传输过程示意图该过程包括以下步骤:
S101:针对调度的每个下行传输时间间隔TTI,确定所述TTI的编号和反馈时延。
本申请实施例提供的反馈信息的传输方法应用于基站。
基站可以针对调度的每个下行TTI,确定该TTI的编号和反馈时延。
S102:将所述TTI的编号及反馈时延携带在下行调度信令中发送给终端,使所述终端根据所述编号及反馈时延,确定进行所述TTI反馈的反馈窗口的大小,根据所述反馈窗口的大小接收反馈信息。
所述基站确定出所述TTI的编号和反馈时延后,向终端发送下行调度信令,所述下行调度信令中携带有基站确定的所述TTI的编号和所述TTI的反馈时延。终端接收到该下行调度信令后,根据所述下行调度信令中携带的所述TTI的编号和所述TTI的反馈时延,可以确定出进行反馈的确认信息或非确认信息ACK/NACK的反馈窗口的大小,并且终端还可以根据当前的传输模式及确定的反馈窗口的大小,即可确定出反馈码本的大小。
具体的,在本申请实施例中终端在确定反馈窗口时,可以将TTI的编号和反馈时延的和作为反馈窗口。而根据反馈窗口,确定反馈码本属于现有技术,在本申请实施例中对该过程不进行赘述。
另外,因为在基站确定了调度的每个下行传输时间间隔TTI,确定所述TTI的编号和反馈时延,因此也可以确定进行反馈的反馈窗口的大小,并采用该反馈窗口的大小接收反馈信息。其中终端和基站确定的该反馈窗口的大小是相同的。
由于在本申请实施例中,基站确定了调度的每个TTI的编号及反馈时延,使得终端能够根据编号和反馈时延确定进行反馈的ACK/NACK的反馈窗口的大小,并且基站采用该反馈窗口的大小接收反馈信息,因此,使得基站和终端确定的反馈码本统一,避免了基站和终端之间对ACK/NACK码本大小产生的误解,而且该过程无需按照最大的可能确定反馈的ACK/NACK码本大小,提高了ACK/NACK反馈的性能。
在上述实施例中,所述确定所述TTI的编号包括:
根据所述下行TTI在反馈窗口中的位置,确定所述TTI的编号,其中,所述反馈窗口指在同一上行TTI的反馈资源中进行反馈的所有下行TTI对应的传输位置集合。
在本申请实施例中所述反馈窗口指在同一上行TTI的反馈资源中进行反馈的所有下行TTI对应的传输位置集合。在该反馈窗口中可以只包含一个下行TTI,也可以包括两个以上的下行TTI,且包含的下行TTI可以连续,也可以不连续。在该连续的下行TTI,或不连续的下行TTI中有可能有数据被调度,也可能没有数据被调度。
由于在本申请实施例中,基站确定了调度的每个TTI的编号及反馈时延,使得终端能够根据编号和反馈时延确定进行反馈的ACK/NACK的反馈窗口的大小,并且基站采用该反馈窗口的大小接收反馈信息,因此,使得基站和终端确定的反馈码本统一,避免了基站和终端之间对ACK/NACK码本大小产生的误解,而且该过程无需按照最大的可能确定反馈的ACK/NACK码本大小,提高了ACK/NACK反馈的性能。
实施例2:
在上述实施例中,基站针对反馈窗口调度的每个下行时间间隔TTI,根据所述下行TTI在反馈窗口中的位置,确定所述TTI的编号,其中,所述反馈窗口指在同一上行TTI的反馈资源中进行反馈的所有下行TTI对应的传输位置集合。由于调度的每个TTI的载波个数不同,调度的TTI的长度也不同,而且调度的TTI可能连续,也可能不连续,因此在本申请中通过不同的实施例,对确定所述TTI的编号的方法进行说明。
在本申请实施例中,当基站配置终端采用单载波传输时,所述根据所述下行TTI在反馈窗口中的位置,确定所述TTI的编号包括::
根据所述载波上可以传输的最小TTI长度,按照该最小TTI长度对载波上的时间位置进行划分;
识别所述反馈窗口中调度了TTI的第一个时间位置,确定所述第一个时间位置的编号;
根据其他时间位置与所述第一个时间位置的间隔,对所述其他时间位置进行编号,其中所述其他时间位置的编号与所述第一个时间位置的编号的差值为所述间隔包含的最小TTI长度的个数;
根据所调度的TTI对应的时间位置的编号,确定所述TTI的编号。
当基站配置终端采用单载波传输时,所述基站识别该载波上传输的最小TTI长度,根据该最小TTI长度,对载波上的时间位置进行划分。例如,载波上传输的TTI包括14个符号长度的TTI和7个符号长度的TTI,则最小TTI长度为7个符号长度,因此对载波上的时间位置进行划分时,基站根据7个符号长度进行划分。
每个子帧为14个符号长度包含两个时间位置(slot),则一个子帧可以调度一个14个符号长度的TTI,也可以在任意一个时间位置调度7个符号长度的TTI。
基站对载波上的时间位置进行划分时,采用的是最小TTI长度,划分后载波上包含有多个时间位置。基站识别出所述反馈窗口中调度了TTI的第一个时间位置,并对所述第一个时间位置进行编号。在本申请实施例中,为了编号的简便,确定所述第一个时间位置的编号为1。
所述其他时间位置与所述第一个时间位置的间隔,对所述其他时间位置进行编号,即对该时间位置之后的其他时间位置,根据该时间位置的编号进行顺序编号,其中所述其他时间位置的编号与所述第一个时间位置的编号的差值为所述间隔包含的最小TTI长度的个数。
因为每个时间位置的编号确定的,根据所调度的TTI对应的时间位置的编号,可以确定该TTI的编号。如果该TTI占用一个时间位置,则该TTI的编号即为该时间位置的编号,如果该TTI占用两个时间位置,则该TTI的编号为该两个时间位置其中一个时间位置的编号,该其中一个时间位置的编号,可以是该两个时间位置中第一个时间位置的编号,也可以是第二个时间位置的编号,而且只要保证所有占用两个时间位置的TTI的编号都采用相同的确定方式即可。
可选的,所述根据所调度的每个TTI对应的时间位置的编号,确定所述TTI的编号包括:
调度的所述TTI占用一个时间位置时,确定调度的所述TTI的编号为所占用的时间位置的编号;
调度的所述TTI占用一个以上的时间位置时,确定调度的所述TTI的编号为所述一个以上的时间位置中第一个时间位置的编号。
如果该载波上传输的TTI都为最小长度的TTI时,则根据上述方式可以直接确定每个 TTI的编号。
如果调度的TTI的长度包含最小长度和非最小长度时,则最小长度的TTI的编号根据上述方式可以直接确定,在确定每个非最小长度的TTI的编号时,可以采用该TTI占用的一个以上的时间位置的任意一个时间位置的编号作为该TTI的编号。
下面通过一个具体的实施例进行说明。
如图2A所示,基站配置终端采用单载波传输,基站同时调度了14个符号长度的TTI和7个符号长度的TTI。具体的图2A所示,基站在子帧n和子帧n+1中调度了14个符号长度的TTI,在子帧n+3和子帧n+4的第一个时间位置中调度了7个符号长度的TTI,基站所调度的4个下行TTI在同一个上行TTI内进行反馈,即该4个下行TTI位于一个反馈窗口。
载波上可以传输的最小TTI长度为7个符号长度,对载波上的时间位置进行划分,识别所述反馈窗口中调度了TTI的第一个时间位置,对所述第一个时间位置进行编号,图2A中调度了TTI的第一个时间位置为子帧n的第一个slot,确定该第一个时间位置的编号为1,之后每个子帧中每个时间位置对应的编号依次为2,3,……,9等等,在图2A中采用a表示编号。
由于调度的第一个TTI为14个符号长度的TTI,其占用了子帧n中的两个时间位置,此时,取子帧n的第一个时间位置的编号作为子帧n中调度的TTI的编号,即子帧n调度的TTI的编号为1。同样的子帧n+1调度的TTI也是14个字符长度,因此取子帧n+1的第一个时间位置的编号作为子帧n+1中调度的TTI的编号,即子帧n+1调度的TTI的编号为3。子帧n+3调度的TTI是7个字符长度,位于子帧n+3的第一个时间slot,子帧n+3第一个时间slot的编号为7,则子帧n+3调度的TTI的编号为7,同样的可以确定子帧n+4调度的TTI的编号为9。因此基站在发送下行调度信令时,可以分别携带0010/0110/0111/1000信息,指示当前调度的TTI的编号为1、3、7和9。
在上述实施例的基础上,为了进一步提高数据传输的效率,并提高终端确定动态码本大小的效率,对于所述反馈窗口中调度的每个TTI的长度都相等,且不是最小长度的情况,为了使确定每个TTI的编号更方便,所述根据所述载波上传输的TTI的最小长度,对载波上传输的该最小长度的TTI的每个位置进行划分之前,所述方法还包括:
判断所述载波上调度的每个TTI的长度是否相等;
如果相等,识别所述载波上调度的TTI是否为最小长度的TTI,如果否,识别所述反馈窗口中调度的第一个TTI,并确定所述第一个TTI的编号,针对调度了每个其他TTI的子帧与调度所述第一个TTI的子帧的间隔,确定所述每个其他TTI的编号。
所述根据所述载波上传输的的最小TTI长度,对载波上传输的时间位置进行划分之前,判断所述反馈窗口中调度的每个TTI的长度是否相等,当判断所述反馈窗口中调度的每个TTI的长度相等时,识别所述反馈窗口中调度的TTI是否为最小长度的TTI,如果识别出所述TTI不是最小长度的TTI,可以不对该反馈窗口进行划分。
具体的,基站可以直接识别所述反馈窗口中调度的第一个TTI,并确定所述第一个TTI的编号。在本申请实施例中,为了编号的简便,确定所述第一个TTI的编号为1。针对所述调度窗口中调度每个其他TTI的子帧及与调度所述第一个TTI的子帧的间隔,确定所述每个其他TTI的编号,该其他TTI的编号时根据该第一个TTI的编号进行顺序编号的,根据编号为多少,根据两者之间的间隔确定。因此在确定TTI的编号的过程,无论调度的TTI是否连续,都可以依据上述方式确定TTI的编号,例如,所述反馈窗口中在子帧n调度的第一个TTI,在子帧n+1调度的第二个TTI,则所述第二个TTI的编号为2;并且在子帧n+3调度了第三个TTI,则第三个TTI的编号为4。
图2B所示为本申请实施例中基站采用单载波传输时调度的连续下行TTI的示意图,基站调度了4个连续的下行TTI,这连续的4个下行TTI分别在子帧n,子帧n+1,子帧n+2和子帧n+3调度,且基站指示这4个TTI在同一个上行TTI内进行反馈,因此可知该四个连续的下行TTI位于一个反馈窗口内。
经判断,4个连续的下行TTI长度相等,且所述4个下行TTI不是最小长度的TTI,因此,直接识别所述反馈窗口中调度的第一个TTI,并确定所述第一个TTI的编号为1,之后三个连续的下行TTI的编号依次为2,3,4。
图2C所示为本申请实施例中基站配置终端采用单载波传输时,调度的不连续下行TTI的示意图,基站调度了2个不连续的下行TTI,这2个不连续的下行TTI分别在子帧n和子帧n+2调度,且基站指示这2个TTI在同一个上行TTI内进行反馈,因此可知该2个不连续的下行TTI位于一个反馈窗口内。
经判断,这2个不连续的下行TTI长度相等,且这2个下行TTI不是最小长度的TTI,因此,直接识别所述反馈窗口中调度的第一个TTI,并确定所述第一个TTI的编号为1,之后的第二个TTI编号为3。
实施例3:
在上述实施例1的基础上,所述反馈窗口调度的每个TTI可以采用单载波传输,也可以采用多载波传输。在本申请实施例中,当基站配置终端采用多载波传输时,所述根据所述下行TTI在反馈窗口中的位置,确定所述TTI的编号包括:
根据所有载波上传输的最小TTI长度,按照该最小TTI长度对所有载波上的时间位置 进行划分;
识别所述反馈窗口中所有载波调度了TTI的第一个时间位置,确定所述第一个时间位置的编号;
根据每个其他时间位置与所述第一个时间位置的间隔,对所述每个其他时间位置进行编号,其中所述其他时间位置的编号与所述第一个时间位置的编号的差值为所述间隔包含的最小TTI长度的个数;
根据所调度的TTI对应的时间位置的编号,确定所述TTI的编号。
当基站配置终端采用多载波传输时,针对于所有载波,所述基站识别所有载波上传输的最小TTI长度,按照该最小TTI长度对所有载波上的时间位置进行划分。例如,载波上传输的TTI包括14个符号长度的TTI和7个符号长度的TTI,则最小TTI长度为7个符号长度,因此对载波上的时间位置进行划分时,基站根据7个符号长度进行划分。
每个子帧为14个符号长度包含两个时间位置(slot),则一个子帧可以调度一个14个符号长度的TTI,也可以在任意一个时间位置调度7个符号长度的TTI。
基站对载波上的时间位置进行划分时,采用的是最小TTI长度,划分后载波上包含有多个时间位置。基站识别出所述反馈窗口中调度了TTI的第一个时间位置,并对所述第一个时间位置进行编号。在本申请实施例中,为了编号的简便,确定所述第一个时间位置的编号为1。
所述其他时间位置与所述第一个时间位置的距离,对所述其他时间位置进行编号,即对该时间位置之后的其他时间位置,根据该时间位置的编号进行顺序编号,其中,所述其他时间位置的编号与所述第一个时间位置的编号的差值为所述间隔包含的最小TTI长度的个数,每个载波的每个子帧的相同时间位置的编号相同。
因为每个时间位置的编号确定的,根据所调度的每个TTI对应的时间位置的编号,可以确定该TTI的编号。如果该TTI占用一个时间位置,则该TTI的编号即为该时间位置的编号,如果该TTI占用两个时间位置,则该TTI的编号为该两个时间位置其中一个时间位置的编号,该其中一个时间位置的编号,可以是该两个时间位置中第一个时间位置的编号,也可以是第二个时间位置的编号,而且只要保证该反馈窗口中所有占用两个时间位置的TTI的编号都采用相同的确定方式即可。
可选的,所述根据所调度的每个TTI对应的时间位置的编号,确定所述TTI的编号包括:
调度的所述TTI占用一个以上的时间位置时,确定调度的所述TTI的编号为所述一个以上的时间位置中第一个时间位置的编号。
如果该载波上传输的TTI都为最小长度的TTI时,则根据上述方式可以直接确定每个TTI的编号。
如果调度的TTI的长度包含最小长度和非最小长度时,则最小长度的TTI的编号根据上述方式可以直接确定,在确定每个非最小长度的TTI的编号时,可以采用该TTI占用的一个以上的时间位置的任意一个时间位置的编号作为该TTI的编号。
下面通过一个具体的实施例进行说明。
如图3A所示,基站配置终端采用双载波传输,基站同时调度了14个符号长度的TTI和7个符号长度的TTI。具体的图3A所示,基站在载波1的子帧n+1中调度了14个符号长度的TTI,在子帧n+2的第二个位置中调度了7个符号长度的TTI;在载波2的子帧n的第二个位置调度了7个符号长度的TTI,子帧n+2调度了14个符号长度的TTI,在子帧n+3的第一个位置调度了7个符号长度的TTI,且基站指示所有调度的TTI都在子帧n+5进行反馈。
基站针对该反馈窗口,根据7个符号长度的TTI,对反馈窗口进行划分,针对于载波1和载波2,识别所述反馈窗口中调度了TTI的第一个时间位置,对所述第一个时间位置进行编号,图3A中调度了TTI的第一个时间位置为载波2中的子帧n的第二个时间位置,因此该位置的编号为1,之后的每个子帧中每个时间位置对应的编号依次为2,3,……等等,并且载波1和载波2中每个子帧的相同时间位置的编号相同。在图3A中采用a表示编号。
另外,针对调度的14个符号长度的TTI,因为其占用了子帧中的两个时间位置,此时,取子帧的第一个时间位置的编号作为子帧调度的TTI的编号,具体的确定过程与实施例2中14个符号长度的TTI的编号确定过程相同,在这里不再赘述。
因此通过上述方式可以确定载波1中在子帧n+1和子帧n+2中调度的两个不连续的TTI的编号分别为2和5,载波2中在子帧n、n+2和子帧n+3中调度的三个不连续的TTI的编号分别为1、4和6。
在上述实施例的基础上,为了进一步提高数据传输的效率,并提高终端确定动态码本的效率,针对于所有载波,对于所述反馈窗口中调度的每个TTI的长度都相等,且不是最小长度的情况,为了使确定每个TTI的编号更方便,所述根据所述载波上传输的TTI的最小长度,对载波上传输的该最小长度的TTI的每个位置进行划分之前,所述方法还包括:
判断所有载波上调度的每个TTI的长度是否相等;
如果相等,识别所有载波上调度的TTI是否为最小长度的TTI,如果否,识别所述反馈窗口的所有载波中调度的第一个TTI,并确定所述第一个TTI的编号,根据每个其他TTI 的子帧及与调度所述第一个TTI的子帧的间隔,确定所述每个其他TTI的编号,其中,不同载波相同时刻传输的TTI的编号相同。
所述基站根据载波上可以传输的最小TTI长度,对对载波上的时间位置进行划分之前,针对于所有载波,判断所述反馈窗口中调度的每个TTI的长度是否相等,当判断所述反馈窗口中调度的每个TTI的长度相等时,识别所述反馈窗口中调度的TTI是否为最小长度的TTI,如果识别出所述TTI不是最小长度的TTI,可以不对载波上的时间位置进行划分。
具体的,基站可以直接识别所有载波调度的第一个TTI,并确定所述第一个TTI的编号,在本申请实施例中,为了编号的简便,确定所述第一个TTI的编号为1。针对所述调度窗口中调度每个其他TTI的子帧及与调度所述第一个TTI的子帧的间隔,确定所述每个其他TTI的编号,该其他TTI的编号时根据该第一个TTI的编号进行顺序编号的,根据编号为多少,根据两者之间的间隔确定。因此在确定TTI的编号的过程,无论调度的TTI是否连续,都可以依据上述方式确定TTI的编号。例如,所述反馈窗口中在子帧n调度的第一个TTI,在子帧n+1调度的第二个TTI,则所述第二个TTI的编号为2;并且在子帧n+3调度了第三个TTI,则第三个TTI的编号为4。并且,每个载波中相同时刻的TTI的编号相同。
图3B所示为本申请实施例中基站采用双载波传输时调度的下行TTI的示意图,基站在载波1的子帧n和子帧n+3上调度了2个不连续的下行TTI,在载波2的子帧n+1上调度了一个下行TTI,且基站指示指示这3个TTI在同一个上行TTI内进行反馈,因此可知该3个连续的下行TTI位于一个反馈窗口内。
经判断,两个载波中的3个下行TTI长度相等,且3个下行TTI不是最小长度的TTI,因此,直接识别所述反馈窗口所有载波调度的第一个TTI,在本实施例中,如图3B所示载波1上子帧n调度的下行TTI为第一个TTI,确定所述第一个TTI的编号为1,因此载波1上子帧n+3调度的下行TTI的编号为4。由于每个载波中相同时刻的TTI的编号相同,因此确定载波2上子帧n+1调度的下行TTI的编号为2。在图3B中采用a表示编号。
实施例4:
在上述各实施例的基础上,确定所述TTI的反馈时延包括:
确定所述TTI传输至反馈信息传输位置的时间和最小处理时延的差值,将所述差值确定为所述TTI的反馈时延,其中所述最小处理时延为终端接收到数据包后解调并生成反馈信息的最小时间,且所述反馈时延根据所述反馈窗口中传输的最短TTI长度确定或根据载波上传输的最小TTI长度确定。
在基站中预先保存有最小反馈时延,所述基站根据对所述TTI进行反馈的上行TTI的 位置及最小反馈时延,可以确定调度的所述TTI的反馈时延。
另外,在本申请实施例中对基站确定调度的TTI的编号和反馈时延的先后顺序不进行限定,基站可以先确定该TTI的编号,也可以先确定该TTI的反馈时延。
所述基站根据所述TTI传输至反馈信息传输位置的时间以及最小处理时延可以确定所述TTI的反馈时延,具体的,将所述TTI传输至反馈信息传输位置的时间与所述最小处理时延的差值确定为所述TTI的反馈时延。且所述反馈时延是根据所述反馈窗口中传输的最短TTI长度确定的,或者也可以说是以载波上可以传输的最短TTI长度为单位确定的。根据最短TTI长度可以确定所述TTI传输至反馈信息传输位置的时间,进而可以确定所述反馈时延。
具体的参见图2A,基站对载波上的时间位置进行划分时,采用的是最小TTI长度,划分后包含有多个时间位置。每个时间位置的编号如实施例2所示。基站确定的进行反馈的上行TTI的子帧为子帧n+6,子帧n+6与子帧n+4的第一个时间位置的间隔4个时间位置,而基站保存的最小反馈时延为4,因此可知,子帧n+4第一个时间位置对应的反馈时延为0。以此往前,随着间隔的增大,每个时间位置对应的反馈时延分别为1、2、……8,因此可知子帧n调度的TTI的反馈时延为8、子帧n+1调度的TT1的反馈时延为6,子帧n+3调度的TT1的反馈时延为2,子帧n+4调度的TT1的反馈时延为0。在图2A中采用m表示反馈时延。
基站和终端都根据所述TTI的编号以及对应的反馈时延确定反馈窗口,具体的,将所述TTI的编号与对应的反馈时延的和确定为反馈窗口,在本实施例中,反馈窗口为9。进而,通过识别载波上的传输模式,确定反馈码本大小。如果识别出采用为单码字传输模式,则反馈码本大小为9,如果识别出采用双码字传输模式,则反馈码本大小为18。
在本申请实施例中,由于每个TTI对应的反馈位置和反馈码本大小都相同,因此,无论终端侧丢失了哪一个TTI,都不会导致基站和终端之间产生理解错误。
当基站配置终端采用单载波传输时,所述基站在根据保存的最小TTI长度,对所述载波上的时间位置进行划分之前,判断所述反馈窗口中调度的每个TTI的长度是否相等,当判断所述反馈窗口中调度的每个TTI的长度相等时,识别所述反馈窗口中调度的TTI是否为最小长度的TTI,如果识别出所述TTI不是最小长度的TTI,参见图2B所示,基站可以不对载波上的时间位置进行划分,基站确定的进行反馈的上行TTI的子帧为子帧n+7,子帧n+7与子帧n+3的间隔4,而基站保存的最小反馈时延为4,因此可知,子帧n+3对应的反馈时延为0。
以此往前,随着间隔的增大,每个子帧对应的反馈时延分别为1、2、3,因此可知子 帧n调度的TTI的反馈时延为3、子帧n+1调度的TT1的反馈时延为2,子帧n+2调度的TT1的反馈时延为1,子帧n+3调度的TT1的反馈时延为0。在图2B中采用m表示反馈时延。
基站和终端根据所述TTI的编号和对应的反馈时延,确定出反馈窗口为4。进而,通过识别载波上的传输模式,确定反馈码本大小。如果识别出采用单码字传输模式,则反馈码本大小为4,如果识别出采用双码字传输模式,则反馈码本大小为8。
在本申请实施例中,由于每个TTI对应的反馈位置和反馈码本大小都相同,因此,无论终端侧丢失了哪一个TTI,都不会导致基站和终端之间产生理解错误。
当基站采用单载波传输时调度不连续下行TTI时,基站采用单载波传输时调度连续下行TTI时,所述基站在根据保存的TTI的最小长度,对所述反馈窗口进行划分之前,判断所述反馈窗口中调度的每个TTI的长度是否相等,当判断所述反馈窗口中调度的每个TTI的长度相等时,识别所述反馈窗口中调度的TTI是否为最小长度的TTI,如果识别出所述TTI不是最小长度的TTI,参见图2C,基站可以不对反馈窗口进行划分,基站确定的进行反馈的上行TTI的子帧为子帧n+8,子帧n+8与子帧n+2的间隔6,而基站保存的最小反馈时延为6,因此可知,子帧n+2对应的反馈时延为0,以此往前,随着间隔的增大,子帧n对应的反馈时延为2。因此可知子帧n调度的TTI的反馈时延为3、子帧n+2调度的TT1的反馈时延为0。
基站和终端根据所述TTI的编号和对应的反馈时延,确定出反馈窗口为3。进而,通过识别载波上的传输模式,确定反馈码本大小。如果识别出采用单码字传输模式,则反馈码本大小为3,如果识别出采用双码字传输模式,则反馈码本大小为6。
在本申请实施例中,由于每个TTI对应的反馈位置和反馈码本大小都相同,因此,无论终端侧丢失了哪一个TTI,都不会导致基站和终端之间产生理解错误。
参见图3A,基站配置终端采用多载波传输时,对载波上的时间位置进行划分时,采用的是最小TTI长度,划分后的包含有多个时间位置。每个时间位置的编号如实施例3所示。基站确定的进行反馈的上行TTI的子帧为子帧n+5,子帧n+5与子帧n+3的第一个位置的间隔4个时间位置,而基站保存的最小反馈时延为4,因此可知,子帧n+3第一个时间位置对应的反馈时延为0。以此往前,随着间隔的增大,每个时间位置对应的反馈时延分别为1、2、……5,其中,每个载波的每个子帧的相同时间位置的反馈时延相同,在图3A中采用m表示反馈时延。
因此可知载波1中,子帧n+1调度的TT1的反馈时延为4,子帧n+2第二个位置调度的TTI的反馈时延为1,载波2中,子帧n第二个位置调度的TTI的反馈时延为5、子帧 n+2调度的TT1的反馈时延为2,子帧n+3第一个位置调度的TT1的反馈时延为0。
基站和终端根据所述TTI的编号以及对应的反馈时延确定反馈窗口,具体的,将所述TTI的编号与对应的反馈时延的和确定为反馈窗口,在本实施例中,反馈窗口为6。进而,通过识别载波上的传输模式,确定反馈码本大小。
由于是双载波传输,因此,如果两个载波都使用了单码字传输模式,则反馈码本大小为12,如果两个载波都使用了双码字传输模式,则反馈码本大小为24,如果一个载波使用单码字传输模式,另一个载波使用双码字传输模式,则反馈码本大小为18。
在本实施例中,在本申请实施例中,由于每个TTI对应的反馈位置和反馈码本大小都相同,因此,不管终端侧丢失了哪一个TTI,都不会导致基站和终端之间产生理解错误。
参见图3B所示,基站配置终端采用多载波传输时,判断反馈窗口中两个载波调度的所有TTI都是14个符号长度,因此基站可以不对载波上的时间位置进行划分,基站确定的进行反馈的上行TTI的子帧为子帧n+7,子帧n+7与子帧n+3的间隔4,而基站保存的最小反馈时延为4,因此可知,子帧n+3对应的反馈时延为0。
以此往前,随着间隔的增大,每个子帧对应的反馈时延分别为1、2、3,因此可知载波1中子帧n调度的TTI的反馈时延为3、子帧n+3调度的TT1的反馈时延为0,载波2中子帧n+1调度的TT1的反馈时延为2。在图3B中采用m表示反馈时延。
基站和终端根据所述TTI的编号以及对应的反馈时延确定反馈窗口,具体的,将所述TTI的编号与对应的反馈时延的和确定为反馈窗口,在本实施例中,反馈窗口为4。进而,通过识别载波上的传输模式,确定反馈码本大小。
由于是双载波传输,因此如果两个载波都使用了单码字传输模式,则反馈码本大小为8,如果两个载波都使用了双码字传输模式,则反馈码本大小为16,如果一个载波使用单码字传输模式,另一个载波使用双码字传输模式,则反馈码本大小为12。
在本实施例中,由于每个TTI对应的反馈位置和反馈码本大小都相同因此,不管终端侧丢失了哪一个TTI,都不会导致基站和UE之间产生理解错误。
实施例5:
在上述各实施例的基础上,本申请实施例中,所述方法还包括:
确定满足最小处理时延的TTI到第一个能够反馈ACK/NACK的上行TTI之间间隔的TTI个数;
将所述个数携带在所述下行调度信令中发送给终端。
所述基站根据保存的最小反馈时延及所述反馈窗口中调度最后一个TTI的子帧,确定满足最小处理时延的TTI,具体的,根据保存的最小反馈时延与所述反馈窗口中调度最后 一个TTI的子帧的和确定为满足最小处理时延的TTI。判断所述TTI是否为确定的进行反馈的上行TTI,如果不是,则查找所述TTI之后的第一个进行反馈的上行TTI,确定满足最小处理时延的TTI到第一个能够反馈ACK/NACK的上行TTI之间间隔的TTI个数,并将所述个数携带在所述下行调度信令中发送给终端。
图4为本申请实施例提供的采用单载波传输,基站调度的TTI的结构,基站调度了2个不连续的下行TTI,且基站指示这2个TTI在同一个上行TTI内进行反馈。因此针对该反馈窗口,依据实施例2可以确定子帧n调度的TTI的编号a为1,反馈时延m为4,子帧n+2调度的TTI的编号a为3,反馈时延m为2。
基站保存的最小反馈时延为4,因此,根据保存的最小反馈时延4及所述反馈窗口中调度最后一个TTI的子帧n+2,确定满足最小处理时延的TTI子帧为n+6。但子帧n+6不是进行反馈的上行TTI的子帧,进行反馈的上行TTI的子帧为n+8,因此可知,进行反馈的上行TTI的子帧与所述满足最小处理时延的TTI之间的个数x为2,因此基站将所述个数携带在所述下行调度信令中发送给终端。
另外,在本申请的上述各实施例中,基站在向终端发送下行控制信令时,该下行控制信令中携带的TTI的编号占用的比特数,可以根据所述TTI的编号及反馈时延确定。所述下行调度信令中所述TTI的编号占用的比特数为
Figure PCTCN2017088486-appb-000002
M为预设的最大的反馈窗口值。
基站根据下行调度信令中携带的TTI的编号和反馈时延,可以确定自身进行反馈信息接收的反馈窗口的大小,具体的,根据所述编号及反馈时延,确定对所述TTI进行反馈的反馈窗口的大小包括:
将TTI的编号与反馈时延的和确定为反馈窗口的大小。
当所述下行调度信令中携带个数值时,所述根据所述下行调度信令中携带的TTI的编号和反馈时延,确定反馈窗口的大小包括:
确定所述TTI的编号和反馈时延的和;
将所述和减去所述个数值作为所述反馈窗口的大小。
或者也可以是在基站和终端保存预先定义的数值,所述反馈窗口的大小为所述TTI的编号与反馈时延的和减去预设的数值,其中,所述预设的数值为针对每个反馈的TTI预先定义的数值。
在上述实施例的基础上,当载波上配置了半永久性SPS传输,且在反馈窗口中存在SPS周期传输TTI时,所述反馈窗口的大小为所述TTI的编号与反馈时延的和加1;或
所述反馈窗口的大小为所述TTI的编号与反馈时延的和减去预设的数值后再加1,其中,所述预设的数值为针对每个反馈的TTI预先定义的数值。或者所述预设的数值也可以 是携带在下行调度信令中的个数值。
实施例6:
图5为本申请实施例提供一种反馈信息的传输过程示意图该过程包括以下步骤:
S201:接收下行传输时间间隔TTI和对应的下行调度信令。
S202:根据所述下行调度信令中携带的所述TTI的编号及反馈时延,确定进行所述TTI反馈的反馈窗口,并根据所述反馈窗口的大小和接收到的数据信息确定反馈信息。
接收基站发送的下行调度信令,当所述基站调度时间间隔TTI时,所述下行调度信令中携带所述TTI的编号及所述TTI的反馈时延,其中所述TTI的编号为所述基站根据所述反馈窗口中调度该TTI的位置确定的,所述TTI的反馈时延为所述基站根据进行反馈的上行TTI的位置及最小反馈时延确定的。
本申请实施例提供的反馈信息的传输方法应用于终端。
终端接收基站发送的下行调度信令,所述下行调度信令中携带基站调度的TTI的的编号及所述TTI的反馈时延。基站可以针对在同一反馈窗口中调度的每个下行TTI,确定该TTI的编号和反馈时延。其中所述反馈窗口指在同一上行TTI的反馈资源中进行反馈的所有下行TTI对应的传输位置集合,在该反馈窗口中可以只包含一个下行TTI,也可以包括两个以上的下行TTI,且包含的下行TTI可以连续,也可以不连续。在该连续的下行TTI,或不连续的下行TTI中有可能有数据被调度,也可能没有数据被调度。
由于在本申请实施例中,基站确定了调度的每个TTI的编号及反馈时延,使得终端能够根据编号和反馈时延确定进行反馈的ACK/NACK的反馈窗口的大小,并且基站采用该反馈窗口的大小接收反馈信息,因此,使得基站和终端确定的反馈码本统一,避免了基站和终端之间对ACK/NACK码本大小产生的误解,而且该过程无需按照最大的可能确定反馈的ACK/NACK码本大小,提高了ACK/NACK反馈的性能。
所述基站确定出所述TTI的编号和反馈时延后,向终端发送下行调度信令,所述下行调度信令中携带有基站确定的所述TTI的编号和所述TTI的反馈时延。终端接收到该下行调度信令后,根据所述下行调度信令中携带的所述TTI的编号和所述TTI的反馈时延,可以确定出进行反馈的确认信息或非确认信息ACK/NACK的反馈窗口的大小,终端根据所述反馈窗口的大小和接收到的数据信息确定反馈信息。具体的,在本申请实施例中终端在确定反馈窗口的大小时,可以将TTI的编号和反馈时延的和作为反馈窗口的大小。
实施例7:
在上述实施例6的基础上,在本申请实施例中,所述根据所述下行调度信令中携带的所述TTI的编号及反馈时延,确定进行所述TTI反馈的反馈窗口包括:
将所述TTI的编号与反馈时延的和确定为进行所述TTI反馈的反馈窗口;
或者,将所述TTI的编号和反馈时延的和减去预设的数值作为所述反馈窗口的大小,所述预设的数值为针对每个反馈的TTI预先定义的数值或者通过下行调度信令动态指示的个数。
该个数的确定过程参见实施例5,当终端接收到该携带个数的下行调度信令时,根据所述TTI的编号、反馈时延及所述个数,确定进行反馈的ACK/NACK的反馈窗口。
具体的,所述根据TTI的编号、反馈时延及所述个数,确定进行反馈的ACK/NACK的反馈窗口包括:
确定所述TTI的编号与反馈时延的和;
将所述和与所述个数的差确定为进行反馈的ACK/NACK的反馈窗口。
另外也可以在基站和终端保存预先定义的数值,在确定该反馈窗口的大小时,可以将所述TTI的编号和反馈时延的和减去预设的数值作为所述反馈窗口的大小。
实施例8:
在上述实施例6和7的基础上,在本申请实施例中,当载波上配置了半永久性SPS传输,且在反馈窗口中存在SPS周期传输TTI时,所述根据下定调度信令中携带的TTI的编号及反馈时延,确定进行所述TTI反馈的反馈窗口包括:
将所述TTI的编号和反馈时延的和加1作为所述反馈窗口的大小;
或者,将所述TTI的编号和反馈时延的和减去预设的数值后加1作为所述反馈窗口的大小,所述预设的数值为针对每个反馈的TTI预先定义的数值或者通过下行调度信令动态指示的数值。
在上述实施例的基础上,当配置了单载波传输时,所述根据所述反馈窗口的大小和接收到的数据信息确定反馈信息包括:
若载波上只包含一种长度的TTI,反馈码本根据反馈窗口中的TTI的前后顺序排序,对没有收到信息的TTI在对应的位置填补NACK/DTX信息;
若载波上传输至少两种长度的TTI时,反馈码本按照反馈窗口中传输的最短TTI进行顺序排序,对没有收到信息的TTI在对应的位置填补NACK/DTX信息。
当配置了多载波传输时,所述根据所述反馈窗口的大小和接收到的数据信息确定反馈信息包括:
针对每个载波,若载波上只包含一种长度的TTI,反馈码本根据反馈窗口中的TTI的前后顺序排序,并按照载波顺序级联确定反馈码本;
针对每个载波,若载波上传输至少两种长度的TTI时,反馈码本按照反馈窗口中传输的最 短TTI进行顺序排序,对没有收到信息的TTI在对应的位置填补NACK/DTX信息,并按照载波顺序级联确定反馈码本。
在上述实施例中,所述反馈码本按照反馈窗口中传输的最短TTI进行顺序排序包括:
针对大于最短TTI长度的第一长度的TTI,在所述第一长度TTI内所包含的第一个或最后一个最短TTI的位置进行反馈,其他位置填补NACK/DTX信息;或
针对大于最短TTI长度的第一长度的TTI,在所述第一长度TTI内所包含的所有最短长度的TTI位置中进行重复反馈。
图6为本申请实施例提供一种反馈信息的传输装置结构示意图,应用于基站,该装置包括:
确定模块61,用于针对调度的每个下行传输时间间隔TTI,确定所述TTI的编号和反馈时延;
发送模块62,用于将所述TTI的编号及反馈时延携带在下行调度信令中发送给终端,使所述终端根据所述编号及反馈时延,确定对所述TTI进行反馈的反馈窗口的大小;根据所述反馈窗口的大小接收反馈信息。
所述确定模块61包括:
第一确定单元611,用于根据所述下行TTI在反馈窗口中的位置,确定所述TTI的编号,其中,所述反馈窗口指在同一上行TTI的反馈资源中进行反馈的所有下行TTI对应的传输位置集合。
所述第一确定单元611,具体用于当识别到配置终端采用单载波传输时,根据所述载波上传输的最小TTI长度,按照该最小TTI长度对载波上的时间位置进行划分;识别所述反馈窗口中调度了TTI的第一个时间位置,确定所述第一个时间位置的编号;根据其他时间位置与所述第一个时间位置的间隔,对所述其他时间位置进行编号,其中所述其他时间位置的编号与所述第一个时间位置的编号的差值为所述间隔包含的最小TTI长度的个数;根据所调度的TTI对应的时间位置的编号,确定所述TTI的编号。
所述第一确定单元611,具体用于根据所有载波上传输的最小TTI长度,按照该最小TTI长度对所有载波上的时间位置进行划分;识别所述反馈窗口中所有载波调度了TTI的第一个时间位置,确定所述第一个时间位置的编号;根据每个其他时间位置与所述第一个时间位置的间隔,对所述每个其他时间位置进行编号,其中所述其他时间位置的编号与所述第一个时间位置的编号的差值为所述间隔包含的最小TTI长度的个数;根据所调度的TTI对应的时间位置的编号,确定所述TTI的编号。
所述第一确定单元611,具体用于调度的所述TTI占用一个时间位置时,确定调度的 所述TTI的编号为所占用的时间位置的编号;调度的所述TTI占用一个以上的时间位置时,确定调度的所述TTI的编号为所述一个以上的时间位置中第一个时间位置的编号。
所述确定模块61还包括:
第二确定单元612,用于确定所述TTI传输至反馈信息传输位置的时间和最小处理时延的差值,将所述差值确定为所述TTI的反馈时延,其中所述最小处理时延为终端接收到数据包后解调并生成反馈信息的最小时间,且所述反馈时延根据所述反馈窗口中传输的最短TTI长度确定或根据载波上传输的最小TTI长度确定。
图7为本申请另一实施例提供一种反馈信息的传输装置结构示意图,应用于终端,所述装置包括:
接收模块71,用于接收下行传输时间间隔TTI和对应的下行调度信令;
确定模块72,用于根据所述下行调度信令中携带的所述TTI的编号及反馈时延,确定进行所述TTI反馈的反馈窗口,并根据所述反馈窗口的大小和接收到的数据信息确定反馈信息。
所述确定模块72,具体用于将所述TTI的编号与反馈时延的和确定为进行所述TTI反馈的反馈窗口;或,确定所述TTI的编号和反馈时延的和;将所述和减去预设的数值作为所述反馈窗口的大小,其中所述预设的数值为针对每个反馈的TTI预先定义的数值,或所述下行调度信令中携带的数值。
所述确定模块72,还用于当载波上配置了半永久性SPS传输,且在反馈窗口中存在SPS周期传输TTI时,将所述TTI的编号和反馈时延的和加1作为所述反馈窗口的大小;或者,将所述TTI的编号和反馈时延的和减去预设的数值后加1作为所述反馈窗口的大小,所述预设的数值为针对每个反馈的TTI预先定义的数值或者通过下行调度信令动态指示的数值。
所述确定模块72,具体用于当配置了单载波传输时,若载波上只包含一种长度的TTI,反馈码本根据反馈窗口中的TTI的前后顺序排序,对没有收到信息的TTI在对应的位置填补NACK/DTX信息;若载波上传输至少两种长度的TTI时,反馈码本按照反馈窗口中传输的最短TTI进行顺序排序,对没有收到信息的TTI在对应的位置填补NACK/DTX信息。
所述确定模块72,具体用于当配置了多载波传输时,针对每个载波,若载波上只包含一种长度的TTI,反馈码本根据反馈窗口中的TTI的前后顺序排序,并按照载波顺序级联确定反馈码本;针对每个载波,若载波上传输至少两种长度的TTI时,反馈码本按照反馈窗口中传输的最短TTI进行顺序排序,对没有收到信息的TTI在对应的位置填补NACK/DTX信息,并按照载波顺序级联确定反馈码本。
所述确定模块72,具体用于针对大于最短TTI长度的第一长度的TTI,在所述第一长度TTI内所包含的第一个或最后一个最短TTI的位置进行反馈,其他位置填补NACK/DTX信息;或,针对大于最短TTI长度的第一长度的TTI,在所述第一长度TTI内所包含的所有最短长度的TTI位置中进行重复反馈。
本申请实施例提供了一种反馈信息的传输系统,所述系统包括如图6所示的应用于基站的反馈信息的传输装置,及如图7所示的应用于终端的反馈信息的传输装置。
图8为本申请实施例提供一种反馈信息的传输装置结构示意图,应用于基站,该装置包括:
处理器801,用于通过收发机802发送和接收数据,并读取存储器804中的程序,执行下列过程:
针对调度的每个下行传输时间间隔TTI,确定所述TTI的编号和反馈时延;
将所述TTI的编号及反馈时延携带在下行调度信令中发送给终端,使所述终端根据所述编号及反馈时延,确定对所述TTI进行反馈的反馈窗口的大小;根据所述反馈窗口的大小接收反馈信息。
收发机802,用于接收和发送数据。
可选的,所述处理器801,还用于根据所述下行TTI在反馈窗口中的位置,确定所述TTI的编号,其中,所述反馈窗口指在同一上行TTI的反馈资源中进行反馈的所有下行TTI对应的传输位置集合。
可选的,所述处理器801具体用于:
当识别到配置终端采用单载波传输时,根据所述载波上传输的最小TTI长度,按照该最小TTI长度对载波上的时间位置进行划分;识别所述反馈窗口中调度了TTI的第一个时间位置,确定所述第一个时间位置的编号;根据其他时间位置与所述第一个时间位置的间隔,对所述其他时间位置进行编号,其中所述其他时间位置的编号与所述第一个时间位置的编号的差值为所述间隔包含的最小TTI长度的个数;根据所调度的TTI对应的时间位置的编号,确定所述TTI的编号。
可选的,所述处理器801,具体用于根据所有载波上传输的最小TTI长度,按照该最小TTI长度对所有载波上的时间位置进行划分;识别所述反馈窗口中所有载波调度了TTI的第一个时间位置,确定所述第一个时间位置的编号;根据每个其他时间位置与所述第一个时间位置的间隔,对所述每个其他时间位置进行编号,其中所述其他时间位置的编号与所述第一个时间位置的编号的差值为所述间隔包含的最小TTI长度的个数;根据所调度的TTI对应的时间位置的编号,确定所述TTI的编号。
可选的,所述处理器801,具体用于调度的所述TTI占用一个时间位置时,确定调度的所述TTI的编号为所占用的时间位置的编号;调度的所述TTI占用一个以上的时间位置时,确定调度的所述TTI的编号为所述一个以上的时间位置中第一个时间位置的编号。
可选的,所述处理器801,还用于确定所述TTI传输至反馈信息传输位置的时间和最小处理时延的差值,将所述差值确定为所述TTI的反馈时延,其中所述最小处理时延为终端接收到数据包后解调并生成反馈信息的最小时间,且所述反馈时延根据所述反馈窗口中传输的最短TTI长度确定或根据载波上传输的最小TTI长度确定。
在图8中,总线架构(用总线800来代表),总线800可以包括任意数量的互联的总线和桥,总线800将包括由处理器801代表的一个或多个处理器和存储器804代表的存储器的各种电路链接在一起。总线800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803在总线800和收发机802之间提供接口。收发机802可以是一个元件,也可以是多个元件,比如多个接收器和发送器,提供用于在传输介质上与各种其他装置通信的单元。经处理器801处理的数据通过天线805在无线介质上进行传输,进一步,天线805还接收数据并将数据传送给处理器801。
处理器801负责管理总线800和通常的处理,还可以提供各种功能,包括定时,外围接口,电压调节、电源管理以及其他控制功能。而存储器804可以被用于存储处理器801在执行操作时所使用的数据。
可选的,处理器801可以是CPU(中央处埋器)、ASIC(Application Specific Integrated Circuit,专用集成电路)、FPGA(Field-Programmable Gate Array,现场可编程门阵列)或CPLD(Complex Programmable Logic Device,复杂可编程逻辑器件)。
图9为本申请另一实施例提供一种反馈信息的传输装置结构示意图,应用于终端,所述装置包括:
处理器901,用于通过收发机902发送和接收数据,并读取存储器904中的程序,执行下列过程:
接收下行传输时间间隔TTI和对应的下行调度信令;根据所述下行调度信令中携带的所述TTI的编号及反馈时延,确定进行所述TTI反馈的反馈窗口,并根据所述反馈窗口的大小和接收到的数据信息确定反馈信息。
收发机902,用于接收和发送数据。
可选的,所述处理器901,具体用于将所述TTI的编号与反馈时延的和确定为进行所述TTI反馈的反馈窗口;或,确定所述TTI的编号和反馈时延的和;将所述和减去预设的 数值作为所述反馈窗口的大小,其中所述预设的数值为针对每个反馈的TTI预先定义的数值,或所述下行调度信令中携带的数值。
可选的,所述处理器901,还用于当载波上配置了半永久性SPS传输,且在反馈窗口中存在SPS周期传输TTI时,将所述TTI的编号和反馈时延的和加1作为所述反馈窗口的大小;或者,将所述TTI的编号和反馈时延的和减去预设的数值后加1作为所述反馈窗口的大小,所述预设的数值为针对每个反馈的TTI预先定义的数值或者通过下行调度信令动态指示的数值。
可选的,所述处理器901,具体用于当配置了单载波传输时,若载波上只包含一种长度的TTI,反馈码本根据反馈窗口中的TTI的前后顺序排序,对没有收到信息的TTI在对应的位置填补NACK/DTX信息;若载波上传输至少两种长度的TTI时,反馈码本按照反馈窗口中传输的最短TTI进行顺序排序,对没有收到信息的TTI在对应的位置填补NACK/DTX信息。
可选的,所述处理器901,具体用于当配置了多载波传输时,针对每个载波,若载波上只包含一种长度的TTI,反馈码本根据反馈窗口中的TTI的前后顺序排序,并按照载波顺序级联确定反馈码本;针对每个载波,若载波上传输至少两种长度的TTI时,反馈码本按照反馈窗口中传输的最短TTI进行顺序排序,对没有收到信息的TTI在对应的位置填补NACK/DTX信息,并按照载波顺序级联确定反馈码本。
可选的,所述处理器901,具体用于针对大于最短TTI长度的第一长度的TTI,在所述第一长度TTI内所包含的第一个或最后一个最短TTI的位置进行反馈,其他位置填补NACK/DTX信息;或,针对大于最短TTI长度的第一长度的TTI,在所述第一长度TTI内所包含的所有最短长度的TTI位置中进行重复反馈。
在图9中,总线架构(用总线900来代表),总线900可以包括任意数量的互联的总线和桥,总线900将包括由通用处理器901代表的一个或多个处理器和存储器904代表的存储器的各种电路链接在一起。总线900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903在总线900和收发机902之间提供接口。收发机902可以是一个元件,也可以是多个元件,比如多个接收器和发送器,提供用于在传输介质上与各种其他装置通信的单元。例如:收发机902从其他设备接收外部数据。收发机902用于将处理器901处理后的数据发送给其他设备。取决于计算系统的性质,还可以提供用户接口905,例如小键盘、显示器、扬声器、麦克风、操纵杆。
处理器901负责管理总线900和通常的处理,如前述所述运行通用操作系统。而存储 器904可以被用于存储处理器901在执行操作时所使用的数据。
可选的,处理器901可以是CPU、ASIC、FPGA或CPLD。
本申请实施例提供了一种反馈信息的传输方法、装置及系统,所述方法包括:针对调度的每个下行传输时间间隔TTI,确定所述TTI的编号和反馈时延;将所述TTI的编号及反馈时延携带在下行调度信令中发送给终端,使所述终端根据所述编号及反馈时延,确定进行所述TTI反馈的反馈窗口的大小,并根据所述反馈窗口的大小接收反馈信息。由于在本申请实施例中,基站确定了调度的每个TTI的编号及反馈时延,使得终端能够根据编号和反馈时延确定进行反馈的ACK/NACK的反馈窗口的大小,并且基站采用该反馈窗口的大小接收反馈信息,因此,使得基站和终端确定的反馈码本统一,避免了基站和终端之间对ACK/NACK码本大小产生的误解,而且该过程无需按照最大的可能确定反馈的ACK/NACK码本大小,提高了ACK/NACK反馈的性能。
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。
尽管已描述了本申请的优选实施例,但本领域内的技术人员一旦得知了基本创造性概念,则可对这些实施例作出另外的变更和修改。所以,所附权利要求意欲解释为包括优选实施例以及落入本申请范围的所有变更和修改。
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 (41)

  1. 一种反馈信息的传输方法,其特征在于,应用于基站,所述方法包括:
    针对调度的每个下行传输时间间隔TTI,确定所述TTI的编号和反馈时延;
    将所述TTI的编号及反馈时延携带在下行调度信令中发送给终端,使所述终端根据所述编号及反馈时延,确定对所述TTI进行反馈的反馈窗口的大小;
    根据所述反馈窗口的大小接收反馈信息。
  2. 根据权利要求1所述的方法,其特征在于,所述确定所述TTI的编号包括:
    根据所述下行TTI在反馈窗口中的位置,确定所述TTI的编号,其中,所述反馈窗口指在同一上行TTI的反馈资源中进行反馈的所有下行TTI对应的传输位置集合。
  3. 根据权利要求2所述的方法,其特征在于,当基站配置终端采用单载波传输时,所述根据所述下行TTI在反馈窗口中的位置,确定所述TTI的编号包括:
    根据所述载波上传输的最小TTI长度,按照该最小TTI长度对载波上的时间位置进行划分;
    识别所述反馈窗口中调度了TTI的第一个时间位置,确定所述第一个时间位置的编号;
    根据其他时间位置与所述第一个时间位置的间隔,对所述其他时间位置进行编号,其中所述其他时间位置的编号与所述第一个时间位置的编号的差值为所述间隔包含的最小TTI长度的个数;
    根据所调度的TTI对应的时间位置的编号,确定所述TTI的编号。
  4. 根据权利要求2所述的方法,其特征在于,当基站配置终端采用多载波传输时,所述根据所述下行TTI在反馈窗口中的位置,确定所述TTI的编号包括:
    根据所有载波上传输的最小TTI长度,按照该最小TTI长度对所有载波上的时间位置进行划分;
    识别所述反馈窗口中所有载波调度了TTI的第一个时间位置,确定所述第一个时间位置的编号;
    根据每个其他时间位置与所述第一个时间位置的间隔,对所述每个其他时间位置进行编号,其中所述其他时间位置的编号与所述第一个时间位置的编号的差值为所述间隔包含的最小TTI长度的个数;
    根据所调度的TTI对应的时间位置的编号,确定所述TTI的编号。
  5. 根据权利要求3或4所述的方法,其特征在于,所述根据所调度的TTI对应的时间位置的编号,确定所述TTI的编号包括:
    调度的所述TTI占用一个时间位置时,确定调度的所述TTI的编号为所占用的时间位置的编号;
    调度的所述TTI占用一个以上的时间位置时,确定调度的所述TTI的编号为所述一个以上的时间位置中第一个时间位置的编号。
  6. 根据权利要求3或4所述的方法,其特征在于,确定的所述第一个时间位置的编号为1。
  7. 根据权利要求1所述的方法,其特征在于,确定所述TTI的反馈时延包括:
    确定所述TTI传输至反馈信息传输位置的时间和最小处理时延的差值,将所述差值确定为所述TTI的反馈时延,其中所述最小处理时延为终端接收到数据包后解调并生成反馈信息的最小时间,且所述反馈时延根据所述反馈窗口中传输的最短TTI长度确定或根据载波上传输的最小TTI长度确定。
  8. 根据权利要求1所述的方法,其特征在于,所述下行调度信令中所述TTI的编号占用的比特数为
    Figure PCTCN2017088486-appb-100001
    M为预设的最大的反馈窗口值。
  9. 根据权利要求1所述的方法,其特征在于,所述反馈窗口的大小为所述TTI的编号和反馈时延的和;或
    所述反馈窗口的大小为所述TTI的编号与反馈时延的和减去预设的数值,其中,所述预设的数值为针对每个反馈的TTI预先定义的数值。
  10. 根据权利要求1所述的方法,其特征在于,当载波上配置了半永久性SPS传输,且在反馈窗口中存在SPS周期传输TTI时,所述反馈窗口的大小为所述TTI的编号与反馈时延的和加1;或
    所述反馈窗口的大小为所述TTI的编号与反馈时延的和减去预设的数值后再加1,其中,所述预设的数值为针对每个反馈的TTI预先定义的数值。
  11. 一种反馈信息的传输方法,其特征在于,应用于终端,所述方法包括:
    接收下行传输时间间隔TTI和对应的下行调度信令;
    根据所述下行调度信令中携带的所述TTI的编号及反馈时延,确定进行所述TTI反馈的反馈窗口,并根据所述反馈窗口的大小和接收到的数据信息确定反馈信息。
  12. 根据权利要求11所述的方法,其特征在于,所述根据所述下行调度信令中携带的所述TTI的编号及反馈时延,确定进行所述TTI反馈的反馈窗口包括:
    将所述TTI的编号与反馈时延的和确定为进行所述TTI反馈的反馈窗口;或
    确定所述TTI的编号和反馈时延的和;将所述和减去预设的数值作为所述反馈窗口的大小,其中所述预设的数值为针对每个反馈的TTI预先定义的数值,或所述下行调度信令 中携带的数值。
  13. 根据权利要求11所述的方法,其特征在于,当载波上配置了半永久性SPS传输,且在反馈窗口中存在SPS周期传输TTI时,所述根据下定调度信令中携带的TTI的编号及反馈时延,确定进行所述TTI反馈的反馈窗口包括:
    将所述TTI的编号和反馈时延的和加1作为所述反馈窗口的大小;
    或者,将所述TTI的编号和反馈时延的和减去预设的数值后加1作为所述反馈窗口的大小,所述预设的数值为针对每个反馈的TTI预先定义的数值或者通过下行调度信令动态指示的数值。
  14. 根据权利要求11所述的方法,其特征在于,当配置了单载波传输时,所述根据所述反馈窗口的大小和接收到的数据信息确定反馈信息包括:
    若载波上只包含一种长度的TTI,反馈码本根据反馈窗口中的TTI的前后顺序排序,对没有收到信息的TTI在对应的位置填补NACK/DTX信息;
    若载波上传输至少两种长度的TTI时,反馈码本按照反馈窗口中传输的最短TTI进行顺序排序,对没有收到信息的TTI在对应的位置填补NACK/DTX信息。
  15. 根据权利要求11所述的方法,其特征在于,当配置了多载波传输时,所述根据所述反馈窗口的大小和接收到的数据信息确定反馈信息包括:
    针对每个载波,若载波上只包含一种长度的TTI,反馈码本根据反馈窗口中的TTI的前后顺序排序,并按照载波顺序级联确定反馈码本;
    针对每个载波,若载波上传输至少两种长度的TTI时,反馈码本按照反馈窗口中传输的最短TTI进行顺序排序,对没有收到信息的TTI在对应的位置填补NACK/DTX信息,并按照载波顺序级联确定反馈码本。
  16. 根据权利要求14或15所述的方法,其特征在于,所述反馈码本按照反馈窗口中传输的最短TTI进行顺序排序包括:
    针对大于最短TTI长度的第一长度的TTI,在所述第一长度TTI内所包含的第一个或最后一个最短TTI的位置进行反馈,其他位置填补NACK/DTX信息;或
    针对大于最短TTI长度的第一长度的TTI,在所述第一长度TTI内所包含的所有最短长度的TTI位置中进行重复反馈。
  17. 一种反馈信息的传输装置,其特征在于,所述装置包括:
    确定模块,用于针对调度的每个下行传输时间间隔TTI,确定所述TTI的编号和反馈时延;
    发送模块,用于将所述TTI的编号及反馈时延携带在下行调度信令中发送给终端,使 所述终端根据所述编号及反馈时延,确定对所述TTI进行反馈的反馈窗口的大小;根据所述反馈窗口的大小接收反馈信息。
  18. 根据权利要求17所述的装置,其特征在于,所述确定模块包括:
    第一确定单元,用于根据所述下行TTI在反馈窗口中的位置,确定所述TTI的编号,其中,所述反馈窗口指在同一上行TTI的反馈资源中进行反馈的所有下行TTI对应的传输位置集合。
  19. 根据权利要求18所述的装置,其特征在于,所述第一确定单元,具体用于当识别到配置终端采用单载波传输时,根据所述载波上传输的最小TTI长度,按照该最小TTI长度对载波上的时间位置进行划分;识别所述反馈窗口中调度了TTI的第一个时间位置,确定所述第一个时间位置的编号;根据其他时间位置与所述第一个时间位置的间隔,对所述其他时间位置进行编号,其中所述其他时间位置的编号与所述第一个时间位置的编号的差值为所述间隔包含的最小TTI长度的个数;根据所调度的TTI对应的时间位置的编号,确定所述TTI的编号。
  20. 根据权利要求18所述的装置,其特征在于,所述第一确定单元,具体用于根据所有载波上传输的最小TTI长度,按照该最小TTI长度对所有载波上的时间位置进行划分;识别所述反馈窗口中所有载波调度了TTI的第一个时间位置,确定所述第一个时间位置的编号;根据每个其他时间位置与所述第一个时间位置的间隔,对所述每个其他时间位置进行编号,其中所述其他时间位置的编号与所述第一个时间位置的编号的差值为所述间隔包含的最小TTI长度的个数;根据所调度的TTI对应的时间位置的编号,确定所述TTI的编号。
  21. 根据权利要求18或19所述的装置,其特征在于,所述第一确定单元,具体用于调度的所述TTI占用一个时间位置时,确定调度的所述TTI的编号为所占用的时间位置的编号;调度的所述TTI占用一个以上的时间位置时,确定调度的所述TTI的编号为所述一个以上的时间位置中第一个时间位置的编号。
  22. 根据权利要求17所述的装置,其特征在于,所述确定模块还包括:
    第二确定单元,用于确定所述TTI传输至反馈信息传输位置的时间和最小处理时延的差值,将所述差值确定为所述TTI的反馈时延,其中所述最小处理时延为终端接收到数据包后解调并生成反馈信息的最小时间,且所述反馈时延根据所述反馈窗口中传输的最短TTI长度确定或根据载波上传输的最小TTI长度确定。
  23. 一种反馈信息的传输装置,其特征在于,所述装置包括:
    接收模块,用于接收下行传输时间间隔TTI和对应的下行调度信令;
    确定模块,用于根据所述下行调度信令中携带的所述TTI的编号及反馈时延,确定进行所述TTI反馈的反馈窗口,并根据所述反馈窗口的大小和接收到的数据信息确定反馈信息。
  24. 根据权利要求23所述的装置,其特征在于,所述确定模块,具体用于将所述TTI的编号与反馈时延的和确定为进行所述TTI反馈的反馈窗口;或,确定所述TTI的编号和反馈时延的和;将所述和减去预设的数值作为所述反馈窗口的大小,其中所述预设的数值为针对每个反馈的TTI预先定义的数值,或所述下行调度信令中携带的数值。
  25. 根据权利要求23所述的装置,其特征在于,所述确定模块,还用于当载波上配置了半永久性SPS传输,且在反馈窗口中存在SPS周期传输TTI时,将所述TTI的编号和反馈时延的和加1作为所述反馈窗口的大小;或者,将所述TTI的编号和反馈时延的和减去预设的数值后加1作为所述反馈窗口的大小,所述预设的数值为针对每个反馈的TTI预先定义的数值或者通过下行调度信令动态指示的数值。
  26. 根据权利要求23所述的装置,其特征在于,所述确定模块,具体用于当配置了单载波传输时,若载波上只包含一种长度的TTI,反馈码本根据反馈窗口中的TTI的前后顺序排序,对没有收到信息的TTI在对应的位置填补NACK/DTX信息;若载波上传输至少两种长度的TTI时,反馈码本按照反馈窗口中传输的最短TTI进行顺序排序,对没有收到信息的TTI在对应的位置填补NACK/DTX信息。
  27. 根据权利要求23所述的装置,其特征在于,所述确定模块,具体用于当配置了多载波传输时,针对每个载波,若载波上只包含一种长度的TTI,反馈码本根据反馈窗口中的TTI的前后顺序排序,并按照载波顺序级联确定反馈码本;针对每个载波,若载波上传输至少两种长度的TTI时,反馈码本按照反馈窗口中传输的最短TTI进行顺序排序,对没有收到信息的TTI在对应的位置填补NACK/DTX信息,并按照载波顺序级联确定反馈码本。
  28. 根据权利要求26或27所述的装置,其特征在于,所述确定模块,具体用于针对大于最短TTI长度的第一长度的TTI,在所述第一长度TTI内所包含的第一个或最后一个最短TTI的位置进行反馈,其他位置填补NACK/DTX信息;或,针对大于最短TTI长度的第一长度的TTI,在所述第一长度TTI内所包含的所有最短长度的TTI位置中进行重复反馈。
  29. 一种反馈信息的传输系统,其特征在于,所述系统包括如权利要求17-22任一项应用于基站的反馈信息的传输装置,及如权利要求23-28任一项应用于终端的反馈信息的传输装置。
  30. 一种反馈信息的传输装置,其特征在于,所述装置包括:
    处理器,用于通过收发机发送和接收数据,并读取存储器中的程序,执行下列过程:
    针对调度的每个下行传输时间间隔TTI,确定所述TTI的编号和反馈时延;
    将所述TTI的编号及反馈时延携带在下行调度信令中发送给终端,使所述终端根据所述编号及反馈时延,确定对所述TTI进行反馈的反馈窗口的大小;根据所述反馈窗口的大小接收反馈信息。
    收发机,用于接收和发送数据。
  31. 根据权利要求30所述的装置,其特征在于,所述处理器,还用于根据所述下行TTI在反馈窗口中的位置,确定所述TTI的编号,其中,所述反馈窗口指在同一上行TTI的反馈资源中进行反馈的所有下行TTI对应的传输位置集合。
  32. 根据权利要求31所述的装置,其特征在于,所述处理器具体用于:
    当识别到配置终端采用单载波传输时,根据所述载波上传输的最小TTI长度,按照该最小TTI长度对载波上的时间位置进行划分;识别所述反馈窗口中调度了TTI的第一个时间位置,确定所述第一个时间位置的编号;根据其他时间位置与所述第一个时间位置的间隔,对所述其他时间位置进行编号,其中所述其他时间位置的编号与所述第一个时间位置的编号的差值为所述间隔包含的最小TTI长度的个数;根据所调度的TTI对应的时间位置的编号,确定所述TTI的编号。
  33. 根据权利要求31所述的装置,其特征在于,所述处理器,具体用于根据所有载波上传输的最小TTI长度,按照该最小TTI长度对所有载波上的时间位置进行划分;识别所述反馈窗口中所有载波调度了TTI的第一个时间位置,确定所述第一个时间位置的编号;根据每个其他时间位置与所述第一个时间位置的间隔,对所述每个其他时间位置进行编号,其中所述其他时间位置的编号与所述第一个时间位置的编号的差值为所述间隔包含的最小TTI长度的个数;根据所调度的TTI对应的时间位置的编号,确定所述TTI的编号。
  34. 根据权利要求31或32所述的装置,其特征在于,所述处理器,具体用于调度的所述TTI占用一个时间位置时,确定调度的所述TTI的编号为所占用的时间位置的编号;调度的所述TTI占用一个以上的时间位置时,确定调度的所述TTI的编号为所述一个以上的时间位置中第一个时间位置的编号。
  35. 根据权利要求30所述的装置,其特征在于,所述处理器,还用于确定所述TTI传输至反馈信息传输位置的时间和最小处理时延的差值,将所述差值确定为所述TTI的反馈时延,其中所述最小处理时延为终端接收到数据包后解调并生成反馈信息的最小时间,且所述反馈时延根据所述反馈窗口中传输的最短TTI长度确定或根据载波上传输的最小 TTI长度确定。
  36. 一种反馈信息的传输装置,其特征在于,所述装置包括:
    处理器,用于通过收发机发送和接收数据,并读取存储器中的程序,执行下列过程:
    接收下行传输时间间隔TTI和对应的下行调度信令;根据所述下行调度信令中携带的所述TTI的编号及反馈时延,确定进行所述TTI反馈的反馈窗口,并根据所述反馈窗口的大小和接收到的数据信息确定反馈信息;
    收发机,用于接收和发送数据。
  37. 根据权利要求36所述的装置,其特征在于,所述处理器,具体用于将所述TTI的编号与反馈时延的和确定为进行所述TTI反馈的反馈窗口;或,确定所述TTI的编号和反馈时延的和;将所述和减去预设的数值作为所述反馈窗口的大小,其中所述预设的数值为针对每个反馈的TTI预先定义的数值,或所述下行调度信令中携带的数值。
  38. 根据权利要求36所述的装置,其特征在于,所述处理器,还用于当载波上配置了半永久性SPS传输,且在反馈窗口中存在SPS周期传输TTI时,将所述TTI的编号和反馈时延的和加1作为所述反馈窗口的大小;或者,将所述TTI的编号和反馈时延的和减去预设的数值后加1作为所述反馈窗口的大小,所述预设的数值为针对每个反馈的TTI预先定义的数值或者通过下行调度信令动态指示的数值。
  39. 根据权利要求36所述的装置,其特征在于,所述处理器,具体用于当配置了单载波传输时,若载波上只包含一种长度的TTI,反馈码本根据反馈窗口中的TTI的前后顺序排序,对没有收到信息的TTI在对应的位置填补NACK/DTX信息;若载波上传输至少两种长度的TTI时,反馈码本按照反馈窗口中传输的最短TTI进行顺序排序,对没有收到信息的TTI在对应的位置填补NACK/DTX信息。
  40. 根据权利要求36所述的装置,其特征在于,所述处理器,具体用于当配置了多载波传输时,针对每个载波,若载波上只包含一种长度的TTI,反馈码本根据反馈窗口中的TTI的前后顺序排序,并按照载波顺序级联确定反馈码本;针对每个载波,若载波上传输至少两种长度的TTI时,反馈码本按照反馈窗口中传输的最短TTI进行顺序排序,对没有收到信息的TTI在对应的位置填补NACK/DTX信息,并按照载波顺序级联确定反馈码本。
  41. 根据权利要求39或40所述的装置,其特征在于,所述处理器,具体用于针对大于最短TTI长度的第一长度的TTI,在所述第一长度TTI内所包含的第一个或最后一个最短TTI的位置进行反馈,其他位置填补NACK/DTX信息;或,针对大于最短TTI长度的第一长度的TTI,在所述第一长度TTI内所包含的所有最短长度的TTI位置中进行重复反
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