WO2017080430A1 - Procédé et dispositif de détermination de version de redondance et de cycle de changement, et d'estimation de canal - Google Patents

Procédé et dispositif de détermination de version de redondance et de cycle de changement, et d'estimation de canal Download PDF

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Publication number
WO2017080430A1
WO2017080430A1 PCT/CN2016/105005 CN2016105005W WO2017080430A1 WO 2017080430 A1 WO2017080430 A1 WO 2017080430A1 CN 2016105005 W CN2016105005 W CN 2016105005W WO 2017080430 A1 WO2017080430 A1 WO 2017080430A1
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Prior art keywords
redundancy version
downlink
uplink
change period
subframe
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PCT/CN2016/105005
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English (en)
Chinese (zh)
Inventor
高雪娟
邢艳萍
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电信科学技术研究院
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Priority claimed from CN201510795898.0A external-priority patent/CN106712910B/zh
Application filed by 电信科学技术研究院 filed Critical 电信科学技术研究院
Publication of WO2017080430A1 publication Critical patent/WO2017080430A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path

Definitions

  • the present application relates to the field of communications technologies, and in particular, to a redundancy version, a determination period thereof, and a channel estimation method and apparatus.
  • MTC Machine Type Communication
  • LTE Long Term Evolution
  • M2M machine-to-machine
  • the traffic channel for example, the Physical Uplink Shared CHannel (PUSCH) carrying the uplink service and the Physical Downlink Shared Channel (PDSCH) carrying the downlink service may be different in data transmission.
  • Different redundancy versions RV, Redundancy Version
  • RV Redundancy Version
  • the coding unit processes the transport block arriving within a Transmission Time Interval (TTI), and then performs physical channel processing on the corresponding physical resource, as shown in FIG. .
  • TTI Transmission Time Interval
  • the processing of each TTI is independent.
  • the transport block processing flow includes rate matching, and the rate matching process includes sub-block interleaving, bit collection, and bit selection, as shown in FIG. 2 .
  • the bit selection selects the output bit stream according to the redundancy version.
  • the redundancy version is in the downlink control information (DCI, Downlink Control). Indicated in Information).
  • the process of the single-subframe transmission is basically similar to that of the downlink.
  • the redundancy version of the uplink transmission is determined by the parameter CURRENT_IRV of the Medium Access Control (MAC) layer, which is used to indicate the sequence number in the redundancy version sequence, each time mixed.
  • CURRENT_IRV is incremented by 1 (HARQ, Hybrid Automatic Repeat reQuest) transmission (new transmission or retransmission), and CURRENT_IRV is modulo 4.
  • the order of the redundancy version sequence is fixed to 0, 2, 3, 1.
  • the uplink TTI bundling is a transmission method for enhancing uplink coverage, and transmits a different redundancy version of a transport block in multiple consecutive subframes (TTIs), and the redundancy version order is fixed to 0, 2, 3, 1.
  • cross-subframe channel estimation refers to performing joint channel estimation based on reference signals in a plurality of consecutive subframes by using channel correlation.
  • a typical processing method is to weight-average the results of channel estimation of multiple subframes. Accordingly, the data portions are coherently combined.
  • the premise of coherent combining is that the transmitted signals in the multiple subframes used for merging are the same.
  • the redundancy version in the prior art is changed from subframe to subframe, the data information of different redundancy versions is different, and coherent combining cannot be performed. Therefore, a method of changing the redundancy version according to a fixed period is proposed, thereby ensuring partial contiguous sub-segments. The same redundancy version is used in the frame for coherent combining.
  • the embodiment of the present application provides a method for determining a redundancy version and a change period thereof, and a channel estimation method and apparatus for implementing a change period of a redundancy version used for data transmission.
  • a change period of the redundancy version adopted in the data transmission process is determined.
  • the change period of the redundancy version adopted in the data transmission process is determined according to the TDD uplink and downlink configuration.
  • the change period of the redundancy version adopted in the data transmission process is determined according to the TDD uplink and downlink configuration, and specifically includes:
  • a change period of the redundancy version used by the uplink transmission which is a divisor or a multiple of the total number of uplink subframes included in one radio frame or a field corresponding to the TDD uplink and downlink configuration
  • a change period of the redundancy version used by the uplink transmission which is a divisor or multiple of the number of consecutive uplink subframes included in one radio frame or a field corresponding to the TDD uplink and downlink configuration
  • determining a change period of the redundancy version used for the uplink transmission in one field which is a divisor or a multiple of the number of consecutive uplink subframes included in the field corresponding to the TDD uplink and downlink configuration;
  • determining a change period of the redundancy version used for the uplink transmission in one field which is a divisor or a multiple of the total number of uplink subframes included in the field corresponding to the TDD uplink and downlink configuration;
  • the total number of uplink subframes included in a radio frame or a field corresponding to the TDD uplink and downlink configuration is a minimum value or a common number or a common multiple of the agreed value
  • determining a change period of the redundancy version used in the uplink transmission where the number of consecutive uplink subframes included in a radio frame or a field corresponding to the TDD uplink and downlink configuration is a minimum value or a common number or a common multiple of the agreed value;
  • the change period of the redundancy version adopted in the data transmission process is determined according to the TDD uplink and downlink configuration, and specifically includes:
  • a change period of the redundancy version used by the downlink transmission which is a divisor or a multiple of the total number of downlink subframes included in one radio frame or a field corresponding to the TDD uplink and downlink configuration
  • a change period of the redundancy version used in the downlink transmission which is a divisor or a multiple of the number of consecutive downlink subframes included in one radio frame or a field corresponding to the TDD uplink and downlink configuration
  • determining a change period of the redundancy version used for downlink transmission in one field which is a divisor or multiple of the number of consecutive downlink subframes included in the field corresponding to the TDD uplink and downlink configuration;
  • a change period of the redundancy version used by the downlink transmission which is a divisor or a multiple of the number of consecutive downlink subframes included in the adjacent two radio frames corresponding to the TDD uplink and downlink configuration
  • the total number of downlink subframes included in a radio frame or a field corresponding to the TDD uplink and downlink configuration is a minimum value or a common number or a common multiple of the agreed value
  • determining a change period of the redundancy version used in the downlink transmission where the number of consecutive downlink subframes included in a radio frame or a field corresponding to the TDD uplink and downlink configuration is a minimum value or a common number or a common multiple of the agreed value;
  • a change period of the redundancy version used in the downlink transmission which is a minimum value or a common number or a common multiple of the consecutive downlink subframes and the agreed value included in the adjacent two radio frames corresponding to the TDD uplink and downlink configuration.
  • the change period of the redundancy version adopted in the data transmission process is determined according to the TDD uplink and downlink configuration, and specifically includes:
  • the change period of the redundancy version adopted by the uplink transmission is 6; and/or,
  • the change period of the redundancy version adopted by the uplink transmission is 4; and/or,
  • the change period of the redundancy version adopted by the uplink transmission is 2; and/or,
  • the TDD uplink and downlink configuration is configured as 3, determining that the redundancy version of the uplink transmission has a change period of 3; and/or,
  • the change period of the redundancy version adopted by the uplink transmission is 1; and/or,
  • the change period of the redundancy version adopted for the uplink transmission is determined to be 5.
  • the change period of the redundancy version adopted in the data transmission process is determined according to the TDD uplink and downlink configuration, and specifically includes:
  • the TDD uplink and downlink configuration is configured as 0 or 3, it is determined that the change period of the redundancy version adopted by the uplink transmission is 3; and/or,
  • the TDD uplink and downlink configuration is configured as 1 or 4, determining a change period of the redundancy version adopted by the uplink transmission Is 2; and / or,
  • the change period of the redundancy version adopted by the uplink transmission is 1; and/or,
  • the change period of the redundancy version used for the uplink transmission is determined to be 2 or 3, or the first half frame and the second half frame are 2 in one radio frame.
  • the change period of the redundancy version adopted in the data transmission process is determined according to the TDD uplink and downlink configuration, and specifically includes:
  • the TDD uplink and downlink configuration is configured as 3, it is determined that the change period of the redundancy version used in the downlink transmission is 7, or the first half frame in one radio frame is 2, the second half frame is 5, or, in a wireless 3 in the subframes 5, 6, and 7 in the frame, 4 in the subframes 8, 9 in one radio frame, and 4, 1 in the next radio frame, or a sub-frame in a radio frame 4 in frames 5, 6, 7, 8 is 3 in subframe 9 in one radio frame and subframe 0, 1 in the next radio frame; and/or,
  • the change period of the redundancy version used for determining the downlink transmission is 8 or 4 or 2; and/or,
  • the change period of the redundancy version adopted by the downlink transmission is 9 or 3.
  • the change period of the redundancy version adopted in the data transmission process is determined according to the TDD uplink and downlink configuration, and specifically includes:
  • the change period of the redundancy version adopted by the downlink transmission is 2; and/or,
  • the change period of the redundancy version used for determining the downlink transmission is 3; and/or,
  • the change period of the redundancy version adopted by the downlink transmission is 4 or 2; and/or,
  • the change period of the redundancy version used for determining the downlink transmission is 2 or 3, or 2, in the subframes 5 and 6 of one radio frame, 2, in one radio frame.
  • Subframe 9 and subframes 0 and 1 in the next radio frame are 3.
  • the agreed value is a pre-agreed or configured constant, or a number of subframes used for multi-subframe channel estimation for a frequency hopping period of uplink transmission and/or uplink.
  • the agreed value is a pre-agreed or configured constant, or a number of subframes used for the hopping period of the downlink transmission and/or the multi-subframe channel estimation for the downlink.
  • the common divisor is the greatest common divisor, and the common multiple is the least common multiple.
  • Multi-subframe channel estimation is performed using the subframes of the number of subframes.
  • determining the number of subframes to be used when performing multi-subframe channel estimation according to the change period includes:
  • determining the number of subframes to be used when performing multi-subframe channel estimation is the change period.
  • the preset constant is 2 or 3 or 4;
  • the preset constant is a number of subframes in a radio frame used for transmitting the same transport block TB;
  • the preset constant is a number of consecutive subframes starting from a first subframe for transmitting the same TB in one radio frame
  • the preset constant is the number of consecutive subframes starting from the first subframe for transmitting the same TB in one field.
  • the determining the change period of the redundancy version used in the data transmission process comprises: determining the change period of the redundancy version used in the data transmission process by using the determining method of the redundancy version change period.
  • the first radio frame is a pre-agreed or configured radio frame, starting from a first subframe in the first radio frame.
  • the first subframe is a pre-agreed or configured subframe;
  • the redundancy version change pattern is determined by using the first subframe in the first radio frame as a starting point according to the change period and the redundancy version sequence pattern, and specifically includes:
  • the change period is T, starting with the first subframe in the first radio frame, starting with the first first-type subframe in each radio frame, and changing every T first-type subframes
  • the redundancy version is changed according to the redundancy version sequence pattern
  • the change period is T, starting with the first subframe in the first radio frame, starting with the first first type subframe in each field, and changing every T first type subframe
  • the redundancy version is changed according to the redundancy version sequence pattern
  • the first type of subframe is an uplink subframe
  • the first type of subframe is a downlink subframe
  • the first radio frame is a radio frame with a radio frame number of 0; and/or,
  • the first subframe is the first uplink subframe in one radio frame, or the first uplink subframe in one subframe; and/or,
  • the first subframe is the first downlink subframe in one radio frame, or the first downlink subframe in one subframe, or the first uplink subframe in one radio frame.
  • the first downlink subframe after that, or the first downlink subframe in the latter half of a radio frame.
  • the determining the change period of the redundancy version used in the data transmission process comprises: determining the change period of the redundancy version used in the data transmission process by using the determining method of the redundancy version change period.
  • the first unit is configured to determine a time division duplex TDD uplink and downlink configuration
  • a second unit configured to determine, according to the TDD uplink and downlink configuration, a change period of the redundancy version used in the data transmission process.
  • the second unit is specifically configured to:
  • a change period of the redundancy version used by the uplink transmission which is a divisor or a multiple of the total number of uplink subframes included in one radio frame or a field corresponding to the TDD uplink and downlink configuration
  • a change period of the redundancy version used by the uplink transmission which is a divisor or multiple of the number of consecutive uplink subframes included in one radio frame or a field corresponding to the TDD uplink and downlink configuration
  • determining a change period of the redundancy version used for the uplink transmission in one field which is a divisor or a multiple of the number of consecutive uplink subframes included in the field corresponding to the TDD uplink and downlink configuration;
  • determining a change period of the redundancy version used for the uplink transmission in one field which is a divisor or a multiple of the total number of uplink subframes included in the field corresponding to the TDD uplink and downlink configuration;
  • the total number of uplink subframes included in a radio frame or a field corresponding to the TDD uplink and downlink configuration is a minimum value or a common number or a common multiple of the agreed value
  • determining a change period of the redundancy version used in the uplink transmission where the number of consecutive uplink subframes included in a radio frame or a field corresponding to the TDD uplink and downlink configuration is a minimum value or a common number or a common multiple of the agreed value;
  • the second unit is specifically configured to:
  • a change period of the redundancy version used by the downlink transmission which is a divisor or a multiple of the total number of downlink subframes included in one radio frame or a field corresponding to the TDD uplink and downlink configuration
  • a change period of the redundancy version used in the downlink transmission which is a divisor or a multiple of the number of consecutive downlink subframes included in one radio frame or a field corresponding to the TDD uplink and downlink configuration
  • determining a change period of the redundancy version used for downlink transmission in one field which is a divisor or multiple of the number of consecutive downlink subframes included in the field corresponding to the TDD uplink and downlink configuration;
  • determining a change period of the redundancy version used for downlink transmission in one field which is a divisor or multiple of the total number of downlink subframes included in the field corresponding to the TDD uplink and downlink configuration;
  • a change period of the redundancy version used by the downlink transmission which is a divisor or a multiple of the number of consecutive downlink subframes included in the adjacent two radio frames corresponding to the TDD uplink and downlink configuration
  • the total number of downlink subframes included in a radio frame or a field corresponding to the TDD uplink and downlink configuration is a minimum value or a common number or a common multiple of the agreed value
  • determining a change period of the redundancy version used in the downlink transmission where the number of consecutive downlink subframes included in a radio frame or a field corresponding to the TDD uplink and downlink configuration is a minimum value or a common number or a common multiple of the agreed value;
  • a change period of the redundancy version used in the downlink transmission which is a minimum value or a common number or a common multiple of the consecutive downlink subframes and the agreed value included in the adjacent two radio frames corresponding to the TDD uplink and downlink configuration.
  • the second unit is specifically configured to:
  • the change period of the redundancy version adopted by the uplink transmission is 6; and/or,
  • the change period of the redundancy version adopted by the uplink transmission is 4; and/or,
  • the change period of the redundancy version adopted by the uplink transmission is 2; and/or,
  • the TDD uplink and downlink configuration is configured as 3, determining that the redundancy version of the uplink transmission has a change period of 3; and/or,
  • the change period of the redundancy version adopted by the uplink transmission is 1; and/or,
  • the change period of the redundancy version adopted for the uplink transmission is determined to be 5.
  • the second unit is specifically configured to:
  • the change period of the redundancy version adopted by the uplink transmission is 3; and/or,
  • the change period of the redundancy version adopted by the uplink transmission is 2; and/or,
  • the change period of the redundancy version adopted by the uplink transmission is 1; and/or,
  • the change period of the redundancy version used for the uplink transmission is determined to be 2 or 3, or the first half frame and the second half frame are 2 in one radio frame.
  • the second unit is specifically configured to:
  • the TDD uplink and downlink configuration is configured as 3, it is determined that the change period of the redundancy version used in the downlink transmission is 7, or the first half frame in one radio frame is 2, the second half frame is 5, or, in a wireless 3 in the subframes 5, 6, and 7 in the frame, 4 in the subframes 8, 9 in one radio frame, and 4, 1 in the next radio frame, or a sub-frame in a radio frame 4 in frames 5, 6, 7, 8 is 3 in subframe 9 in one radio frame and subframe 0, 1 in the next radio frame; and/or,
  • the change period of the redundancy version used for determining the downlink transmission is 8 or 4 or 2; and/or,
  • the change period of the redundancy version adopted by the downlink transmission is 9 or 3.
  • the second unit is specifically configured to:
  • the change period of the redundancy version used for determining the downlink transmission is 3; and/or,
  • the change period of the redundancy version adopted by the downlink transmission is 4 or 2; and/or,
  • the change period of the redundancy version used for determining the downlink transmission is 2 or 3, or 2, in the subframes 5 and 6 of one radio frame, 2, in one radio frame.
  • Subframe 9 and subframes 0 and 1 in the next radio frame are 3.
  • the agreed value is a pre-agreed or configured constant, or a number of subframes used for multi-subframe channel estimation for a frequency hopping period of uplink transmission and/or uplink.
  • the agreed value is a pre-agreed or configured constant, or a number of subframes used for the hopping period of the downlink transmission and/or the multi-subframe channel estimation for the downlink.
  • the common divisor is the greatest common divisor, and the common multiple is the least common multiple.
  • a change period determining unit configured to determine a change period of a redundancy version adopted in the data transmission process
  • a subframe number determining unit configured to determine, according to the change period, a number of subframes that are used when performing multi-subframe channel estimation
  • a channel estimation unit configured to perform multi-subframe channel estimation by using the subframe of the subframe number.
  • the subframe number determining unit is specifically configured to: determine a number of subframes to be used when performing multi-subframe channel estimation, which is a minimum value of the change period and a preset constant;
  • determining the number of subframes to be used when performing multi-subframe channel estimation is the change period.
  • the preset constant is 2 or 3 or 4;
  • the preset constant is a number of subframes in a radio frame used for transmitting the same transport block TB;
  • the preset constant is a number of consecutive subframes starting from a first subframe for transmitting the same TB in one radio frame
  • the preset constant is the number of consecutive subframes starting from the first subframe for transmitting the same TB in one field.
  • the change period determining unit is a determining device for the redundancy version change period.
  • a change period determining unit configured to determine a change period of a redundancy version adopted in the data transmission process
  • a redundancy version determining unit configured to determine, according to the change period and the redundancy version order pattern, a redundancy version change pattern by using a first subframe in the first radio frame as a starting point, where the first radio frame is a pre-agreed or configured radio frame, the first subframe is a pre-agreed or configured sub-frame, and the pattern and the current number are changed according to the redundancy version.
  • the redundancy version corresponding to the data transmission in the current transmission subframe is determined according to the radio frame number and the subframe number corresponding to the transmission.
  • the redundancy version determining unit determines the redundancy version change pattern based on the change period and the redundancy version sequence pattern, starting with the first subframe in the first radio frame, and specifically includes:
  • the change period is T, starting with the first subframe in the first radio frame, starting with the first first-type subframe in each radio frame, and changing every T first-type subframes
  • the redundancy version is changed according to the redundancy version sequence pattern
  • the change period is T, starting with the first subframe in the first radio frame, starting with the first first type subframe in each field, and changing every T first type subframe
  • the redundancy version is changed according to the redundancy version sequence pattern
  • the first type of subframe is an uplink subframe
  • the first type of subframe is a downlink subframe
  • the first radio frame is a radio frame with a radio frame number of 0; and/or,
  • the first subframe is the first uplink subframe in one radio frame, or the first uplink subframe in one subframe; and/or,
  • the first subframe is the first downlink subframe in one radio frame, or the first downlink subframe in one subframe, or the first uplink subframe in one radio frame.
  • the first downlink subframe after that, or the first downlink subframe in the latter half of a radio frame.
  • the change period determining unit is a determining device for the redundancy version change period.
  • An apparatus provided by an embodiment of the present application includes a processor and a memory, wherein a preset program is stored in the memory, and the processor reads a program in the memory, and executes the following process according to the program:
  • a change period of the redundancy version adopted in the data transmission process is determined.
  • An apparatus provided by an embodiment of the present application includes a processor and a memory, wherein a preset program is stored in the memory, and the processor reads a program in the memory, and executes the following process according to the program:
  • Multi-subframe channel estimation is performed using the subframes of the number of subframes.
  • An apparatus provided by an embodiment of the present application includes a processor and a memory, wherein a preset program is stored in the memory, and the processor reads a program in the memory, and executes the following process according to the program:
  • a redundancy version change pattern where the first radio frame is a pre-agreed or configured radio frame, starting from a first subframe in the first radio frame.
  • the first subframe is a pre-agreed or configured subframe, and the redundancy corresponding to the data transmission in the current transmission subframe is determined according to the redundancy version change pattern and the radio frame number and the subframe number corresponding to the current data transmission. version.
  • FIG. 1 is a schematic diagram of a downlink processing flow in the prior art
  • FIG. 3 is a schematic flowchart of a method for determining a redundancy version change period according to an embodiment of the present disclosure
  • FIG. 4 is a schematic flowchart of a channel estimation method according to an embodiment of the present application.
  • FIG. 5 is a schematic flowchart of a method for determining a redundancy version according to an embodiment of the present disclosure
  • FIG. 6 is a schematic diagram of a system version redundancy version modification pattern according to an embodiment of the present disclosure.
  • FIG. 7 is a schematic structural diagram of a device for determining a redundancy version change period according to an embodiment of the present disclosure
  • FIG. 8 is a schematic structural diagram of a channel estimation apparatus according to an embodiment of the present application.
  • FIG. 9 is a schematic structural diagram of a redundancy version determining apparatus according to an embodiment of the present disclosure.
  • FIG. 10 is a schematic structural diagram of a device according to an embodiment of the present disclosure.
  • FIG. 11 is a schematic structural diagram of another device according to an embodiment of the present disclosure.
  • FIG. 12 is a schematic structural diagram of another device according to an embodiment of the present disclosure.
  • the embodiment of the present application provides a method for determining a redundancy version and a change period thereof, and a channel estimation method and apparatus for implementing a change period of a redundancy version used for data transmission.
  • a method for determining a redundancy version change period includes:
  • TDD time division duplex
  • step S102 specifically includes:
  • a change period of the redundancy version used by the uplink transmission which is a divisor or a multiple of the total number of uplink subframes included in one radio frame or a field corresponding to the TDD uplink and downlink configuration
  • a change period of the redundancy version used by the uplink transmission which is a divisor or multiple of the number of consecutive uplink subframes included in one radio frame or a field corresponding to the TDD uplink and downlink configuration
  • determining a change period of the redundancy version used for the uplink transmission in one field which is a divisor or a multiple of the number of consecutive uplink subframes included in the field corresponding to the TDD uplink and downlink configuration;
  • determining a change period of the redundancy version used for the uplink transmission in one field which is a divisor or a multiple of the total number of uplink subframes included in the field corresponding to the TDD uplink and downlink configuration;
  • the change period of different fields may be the same or different, depending on the number of consecutive uplink subframes or the total number of subframes included in different fields;
  • the total number of uplink subframes included in a radio frame or a field corresponding to the TDD uplink and downlink configuration is a minimum value or a common number or a common multiple of the agreed value
  • determining a change period of the redundancy version used in the uplink transmission where the number of consecutive uplink subframes included in a radio frame or a field corresponding to the TDD uplink and downlink configuration is a minimum value or a common number or a common multiple of the agreed value;
  • the change period of the redundancy version of the uplink transmission is determined according to the total number of uplink subframes included in one radio frame corresponding to the TDD uplink and downlink configuration, and specifically includes:
  • the change period of the redundancy version of the uplink transmission is 6 uplink subframes, that is, changing the redundancy version every 6 consecutive uplink subframes during uplink transmission, and
  • the change period of the redundancy version may also be a divisor of 6, or a multiple of 6, or a minimum or common divisor or a common multiple of 6 and the agreed value; and/or,
  • the change period of the redundancy version of the uplink transmission is determined to be 4 uplink subframes, that is, the redundancy version is changed every 4 consecutive uplink subframes in the uplink transmission, and
  • the change period of the redundancy version may also be a divisor of 4, or a multiple of 4, or a minimum or common divisor or a common multiple of 4 and the agreed value; and/or,
  • the change period of the redundancy version of the uplink transmission is determined to be 2 uplink subframes, that is, the redundancy version is changed every 2 consecutive uplink subframes in the uplink transmission.
  • the change period of the redundancy version may also be a divisor of 2, or a multiple of 2, or a minimum or common divisor or a common multiple of 2 and the agreed value; and/or,
  • the uplink subframe that is, the redundancy version is changed every three consecutive uplink subframes in the uplink transmission
  • the change period of the redundancy version may also be a divisor of 3, or a multiple of 3, or 3 with an agreed value.
  • the change period of the redundancy version of the uplink transmission is determined to be one uplink subframe, that is, the redundancy version is changed once per uplink subframe in the uplink transmission, and
  • the change period of the remaining version may also be a positive integer greater than 1, or a minimum or a common or a multiple of the agreed value, or an agreed value; and/or,
  • the change period of the redundancy version of the uplink transmission is determined to be 5 uplink subframes, that is, the redundancy version is changed every 5 uplink subframes in the uplink transmission, and
  • the change period of the redundancy version may also be a divisor of 5, or a multiple of 5, or a minimum or common divisor or a common multiple of 5 and the agreed value.
  • the change period of the redundancy version of the uplink transmission is determined according to the number of consecutive uplink subframes included in one radio frame corresponding to the TDD uplink and downlink configuration, and specifically includes:
  • the change period of the redundancy version of the uplink transmission is three uplink subframes, that is, the redundancy version is changed every three consecutive uplink subframes in the uplink transmission.
  • the change period of the redundancy version may also be a divisor of 3, or a multiple of 3, or a minimum or common divisor or a common multiple of 3 and the agreed value; and/or,
  • the change period of the redundancy version of the uplink transmission is determined to be two uplink subframes, that is, the redundancy version is changed every two consecutive uplink subframes in the uplink transmission.
  • the change period of the redundancy version may also be a divisor of 2, or a multiple of 2, or a minimum or common divisor or a common multiple of 2 and the agreed value; and/or,
  • the change period of the redundancy version of the uplink transmission is determined to be one uplink subframe, that is, the redundancy version is changed once per uplink subframe in the uplink transmission, and
  • the change period of the redundancy version may also be a positive integer greater than 1, or a minimum or common or multiple of the agreed value, or an agreed value; and/or,
  • the change period of the redundancy version of the uplink transmission is determined to be 2 or 3 uplink subframes, that is, each consecutive 2 or 3 uplink subframes are changed once in the uplink transmission.
  • the remaining version, or, the first half of the frame in one radio frame is 3, and the second half of the frame is 2.
  • the change period of the redundancy version may also be a divisor of 3, or a multiple of 3, or a minimum of 3 and the agreed value.
  • Value or common divisor or common multiple; or, the redundancy version of the change period can also be a divisor of 2, or a multiple of 2, or a minimum or common divisor or a common multiple of 2 and the agreed value.
  • step S102 specifically includes:
  • a change period of the redundancy version used by the downlink transmission which is a divisor or a multiple of the total number of downlink subframes included in one radio frame or a field corresponding to the TDD uplink and downlink configuration
  • a change period of the redundancy version used in the downlink transmission which is a divisor or a multiple of the number of consecutive downlink subframes included in one radio frame or a field corresponding to the TDD uplink and downlink configuration
  • determining a change period of the redundancy version used for downlink transmission in one field which is a divisor or multiple of the number of consecutive downlink subframes included in the field corresponding to the TDD uplink and downlink configuration;
  • determining a change period of the redundancy version used for downlink transmission in one field which is a divisor or multiple of the total number of downlink subframes included in the field corresponding to the TDD uplink and downlink configuration;
  • a change period of the redundancy version used by the downlink transmission which is a divisor or a multiple of the number of consecutive downlink subframes included in the adjacent two radio frames corresponding to the TDD uplink and downlink configuration
  • the total number of downlink subframes included in a radio frame or a field corresponding to the TDD uplink and downlink configuration is a minimum value or a common number or a common multiple of the agreed value
  • determining a change period of the redundancy version used in the downlink transmission where the number of consecutive downlink subframes included in a radio frame or a field corresponding to the TDD uplink and downlink configuration is a minimum value or a common number or a common multiple of the agreed value;
  • a change period of the redundancy version used in the downlink transmission which is a minimum value or a common number or a common multiple of the consecutive downlink subframes and the agreed value included in the adjacent two radio frames corresponding to the TDD uplink and downlink configuration.
  • the downlink subframe includes a TDD special subframe.
  • the change period of the redundancy version of the downlink transmission is determined according to the total number of downlink subframes included in one radio frame corresponding to the TDD uplink and downlink configuration, and specifically includes:
  • the change period of the downlink version of the downlink transmission is determined to be 7 downlink subframes, that is, the redundancy version is changed every 7 consecutive downlink subframes during downlink transmission, or
  • the change period of the redundancy version is 2 in the first half of a radio frame, 5 in the latter half, or 3 in the subframes 5, 6, and 7 in one radio frame, and a subframe in one radio frame.
  • the change period of the redundancy version It can also be a divisor of 7, or a multiple of 7, or a minimum or common divisor or a common multiple of 7 and the agreed value; and/or,
  • the change period of the redundancy version of the downlink transmission is determined to be 8 or 4 or 2 downlink subframes, that is, each consecutive 8 or 4 or 2 downlink subframes in downlink transmission. Change the redundancy version once.
  • the change period of the redundancy version may also be a divisor of 8, or a multiple of 8, or a minimum or common divisor or a common multiple of 8 and the agreed value; and/or,
  • the change period of the downlink version of the downlink transmission is determined to be 9 or 3 downlink subframes, that is, the redundancy is changed every 9 or 3 downlink subframes in the downlink transmission.
  • the version, in addition, the change period of the redundancy version may also be a divisor of 9, or a multiple of 9, or a minimum or common or common multiple of 9 and the agreed value.
  • the change period of the redundancy version of the downlink transmission is determined according to the number of consecutive downlink subframes included in one radio frame corresponding to the TDD uplink and downlink configuration, or the adjacent two radios corresponding to the TDD uplink and downlink configuration.
  • the number of consecutive downlink subframes included in the frame determines the change period of the redundancy version of the downlink transmission, and specifically includes:
  • the change period of the redundancy version of the downlink transmission is two downlink subframes, that is, changing the redundancy version every two consecutive downlink subframes during downlink transmission, and
  • the change period of the redundancy version may also be a divisor of 2, or a multiple of 2, or a minimum or common divisor or a common multiple of 2 and the agreed value; and/or,
  • the change period of the downlink version of the downlink transmission is determined to be three downlink subframes, that is, the redundancy version is changed every three consecutive downlink subframes during downlink transmission, and
  • the change period of the redundancy version may also be a divisor of 3, or a multiple of 3, or a minimum or common divisor or a common multiple of 3 and the agreed value; and/or,
  • the change period of the redundancy version of the downlink transmission is determined to be 4 downlink subframes, that is, the redundancy version is changed every 4 consecutive downlink subframes during downlink transmission, and
  • the change period of the redundancy version may also be a divisor of 4, or a multiple of 4, or a minimum or common divisor or a common multiple of 4 and the agreed value; and/or,
  • the change period of the downlink version of the downlink transmission is determined to be 2 or 3 downlink subframes, that is, the redundancy is changed every 2 consecutive or 3 downlink subframes in the downlink transmission.
  • the revision period of the version, or redundancy version is 2 in subframes 5 and 6 of one radio frame, 3 in subframe 9 in one radio frame, and 3 in subframes 0 and 1 in the latter radio frame.
  • the change period of the redundancy version may also be a divisor of 3, or a multiple of 3, or a minimum or common divisor or a common multiple of 3 and the agreed value; or, the change period of the redundancy version may also be a divisor of 2, Or a multiple of 2, or a minimum or a common or multiple of the agreed value.
  • the agreed value is a pre-agreed or configured constant, or a frequency hopping period and/or an uplink transmission The number of subframes used when performing multi-subframe channel estimation.
  • the agreed value is a pre-agreed or configured constant, or a number of subframes used for the hopping period of the downlink transmission and/or the multi-subframe channel estimation for the downlink.
  • the common divisor is the greatest common divisor, and the common multiple is the least common multiple.
  • a channel estimation method provided by an embodiment of the present application includes:
  • S202 Determine, according to the change period, a number of subframes that are used when performing multi-subframe channel estimation.
  • S203 Perform multi-subframe channel estimation by using the subframe of the subframe number.
  • determining the number of subframes to be used when performing multi-subframe channel estimation according to the change period includes:
  • the uplink transmission (which may of course also be used for downlink transmission), determine the number of subframes to be used when multi-subframe channel estimation is required, which is the change period.
  • the preset constant is, for example, A
  • the A is an integer value greater than or equal to 1 of a pre-agreed or high-level signaling configuration.
  • the A 2 or 3 or 4;
  • the A is defined as the number of subframes in a radio frame used to transmit the same transport block (TB), for example, TDD uplink and downlink configuration 1, and the above row transmission is taken as an example, in subframe 3
  • TB transport block
  • the A is defined as the number of consecutive subframes in the first subframe for transmitting the same TB in one field, for example, TDD uplink and downlink configuration 1, and the above uplink transmission is taken as an example, in subframe 3
  • A 3
  • the embodiment of the present application may determine a redundancy version pattern according to the change period, the system radio frame number, and the redundancy version sequence pattern.
  • a specific radio frame ie, a pre-agreed one on the network side and the UE side
  • a radio frame as a starting point
  • a system-level redundancy version pattern numbered as a starting point
  • the redundancy version pattern providing a redundancy version of each of the radio frames starting with the specific radio frame, for The corresponding redundancy version is obtained according to the actual transmission subframe.
  • a fixed redundancy version pattern is generated, and corresponding to each sub-frame in each radio frame, the pattern is working in the same All the terminals in a cell are the same.
  • the terminal determines the corresponding redundancy version in the transmission subframe according to the redundancy version pattern according to the subframe position where the transmission is located.
  • a method for determining a redundancy version provided by an embodiment of the present application includes:
  • S302. Determine, according to the change period and the redundancy version sequence pattern, a redundancy version change pattern by using a first subframe in the first radio frame, where the first radio frame is a pre-agreed or configured wireless. a frame, where the first subframe is a pre-agreed or configured subframe;
  • the redundancy version change pattern is determined by using the first subframe in the first radio frame as a starting point according to the change period and the redundancy version sequence pattern, and specifically includes:
  • the change period is T, starting with the first subframe in the first radio frame, starting with the first first-type subframe in each radio frame, and changing every T first-type subframes
  • the redundancy version is changed according to the redundancy version sequence pattern
  • the change period is T, starting with the first subframe in the first radio frame, starting with the first first type subframe in each field, and changing every T first type subframe
  • the redundancy version is changed according to the redundancy version sequence pattern
  • the first type of subframe is an uplink subframe
  • the first type of subframe is a downlink subframe
  • the first radio frame is a radio frame with a radio frame number of 0; and/or,
  • the first subframe is the first uplink subframe in one radio frame, or the first uplink subframe in one subframe; and/or,
  • the first subframe is the first downlink subframe in one radio frame, or the first downlink subframe in one subframe, or the first uplink subframe in one radio frame.
  • the first radio frame is defined as a radio frame numbered 0 in the system
  • the redundancy version sequence pattern is RV0, RV1, ..., RVN-1, and the redundancy version change period (ie, the number of repetitions of the single redundancy version) is T, and then in the uplink subframe b in the radio frame a.
  • the subframes 2 and 3 in the radio frame 1 correspond to the RV3, the subframes 7 and 8 in the radio frame 1 correspond to the RV1, and so on, at this time, the T in each radio frame and the field is the same
  • the RV corresponding to the uplink subframe if the number of consecutive uplink subframes is less than 3, only the uplink subframe in the current field is taken, and the uplink subframe in the next field is not continued, that is, in the next field.
  • the downlink transmission mode is similar to the above uplink transmission mode, and the redundancy version pattern is RV0, RV1, ..., RVN-1, and the redundancy version change period (that is, the number of repetitions of the single redundancy version) is T, and then in the radio frame a.
  • the redundancy version of the data transmitted in the downlink subframe b is the first in the redundancy version pattern.
  • Frames 0 and 1 correspond to RV2, subframes 4, 5, and 6 in radio frame 1 correspond to RV3, subframe 9 in radio frame 1 and subframe 0 and 1 in radio frame 2 correspond to RV1, and so on.
  • the subframe 9 in each radio frame only takes the downlink subframe in the current radio frame, and does not continue to the downlink subframe in the next radio frame, that is, the downlink subframe in the next radio frame remains
  • the subframes 0 and 1 in the radio frame 0 correspond to the RV0
  • the subframes 5 and 6 in the radio frame 0 correspond to the RV2
  • the subframe 9 in the radio frame 0 corresponds to the RV3, and the radio frame 1
  • the subframes 0 and 1 in the frame correspond to the RV1
  • the subframes 5 and 6 in the radio frame 1 correspond to the RV0
  • the subframe 9 in the radio frame 1 corresponds to the RV2
  • the RV starting point in the latter radio frame is the former
  • the RV corresponding to the last downlink subframe in a radio frame that is, the subframe 0 and 1 in the radio frame 0 correspond to RV0
  • the radio frame 0 The subframes 5 and 6 correspond to RV2
  • the subframe 9 in the radio frame 0 corresponds to the RV3
  • the subframes 0 and 1 in the radio frame 1 correspond to the RV3
  • the subframes 5 and 6 in the radio frame 1 correspond to the RV1, and the radio frame 1 Subframe
  • subframe 0 in radio frame 0 can also be used as a starting point, and the first two subframes are specially processed, for example, a radio frame is defined.
  • Subframes 0 and 1 in 0 correspond to RV0
  • subframes 5 and 6 in radio frame 0 correspond to RV2
  • subframe 9 in radio frame 0 correspond to RV3
  • subframe 0 and 1 in radio frame 1 correspond to RV3
  • the subframes 5 and 6 correspond to RV1
  • the subframe 9 in the radio frame 1 and the subframes 0 and 1 in the radio frame 2 correspond to RV0, and so on.
  • the redundancy version sequence pattern is RV0, RV2, RV3, and RV1.
  • the change period of the redundancy version of the uplink transmission is the number of consecutive uplink subframes in one radio frame
  • the redundancy is determined.
  • the remaining version change period T 3, indicating that in each radio frame, the redundancy version is changed every 3 uplink subframes, and the same redundancy version is used in 3 consecutive uplink subframes;
  • the system-level redundancy version modification pattern is defined starting from the radio frame 0, that is, the redundancy version corresponding to the subframes 2, 3, and 4 in the system radio frame 0.
  • RV0 the redundancy version corresponding to subframes 7, 8, and 9 is RV2.
  • system radio frame 1 the redundancy version corresponding to subframes 2, 3, and 4 is RV3, and the redundancy corresponding to subframes 7, 8, and 9.
  • the remaining version is RV1.
  • the redundancy version corresponding to subframes 2, 3, and 4 is RV0
  • the redundancy version corresponding to subframes 7, 8, and 9 is RV2, and so on, as shown in Figure 6. Show
  • a terminal When a terminal starts to transmit a PUSCH in subframe 3 scheduled in the radio frame 1, and the number of repeated transmissions is 10, it determines a redundancy version used in each transmission subframe according to the redundancy version modification pattern described above, that is,
  • the transmission corresponds to wireless.
  • the subframe 3 in the frame 1 determines, according to the radio frame number and the subframe number, in combination with the uplink and downlink configuration, starting from the first uplink subframe in the radio frame 0 to the subframe 3 in the radio frame 1, for a total of 8 uplinks.
  • the transmission corresponds to the subframe 7 in the radio frame 1, and according to the radio frame number and the subframe number, combined with the uplink and downlink configuration, the first uplink subframe in the radio frame 0 is determined.
  • RV redundancy version sequence pattern ⁇ RV0, RV2, RV3, RV1 ⁇ , that is, RV4, and so on, that is, according to the relative position of each transmission subframe in the system (relative to the first uplink subframe in the first radio frame), determine the corresponding in the system RV modification pattern. RV, thereby finally determining that RV3 is used in subframes 3 and 4 in radio frame 1, RV1 is used in subframes 7, 8, and 9, and RV0 is used in subframes 2, 3, and 4 in radio frame 2, subframe RV2 is used in 7, 8;
  • the embodiment of the downlink transmission is similar to the uplink transmission described above, and details are not described herein again.
  • the foregoing downlink subframe includes a normal downlink subframe and a special subframe.
  • a device for determining a redundancy version change period includes:
  • the first unit 11 is configured to determine a time division duplex TDD uplink and downlink configuration
  • the second unit 12 is configured to determine, according to the TDD uplink and downlink configuration, a change period of the redundancy version used in the data transmission process.
  • the second unit is specifically configured to:
  • a change period of the redundancy version used by the uplink transmission which is a divisor or a multiple of the total number of uplink subframes included in one radio frame or a field corresponding to the TDD uplink and downlink configuration
  • a change period of the redundancy version used by the uplink transmission which is a divisor or multiple of the number of consecutive uplink subframes included in one radio frame or a field corresponding to the TDD uplink and downlink configuration
  • determining a change period of the redundancy version used for the uplink transmission in one field which is a divisor or a multiple of the number of consecutive uplink subframes included in the field corresponding to the TDD uplink and downlink configuration;
  • determining a change period of the redundancy version used for the uplink transmission in one field which is a divisor or a multiple of the total number of uplink subframes included in the field corresponding to the TDD uplink and downlink configuration;
  • the total number of uplink subframes included in a radio frame or a field corresponding to the TDD uplink and downlink configuration is a minimum value or a common number or a common multiple of the agreed value
  • determining a change period of the redundancy version used in the uplink transmission where the number of consecutive uplink subframes included in a radio frame or a field corresponding to the TDD uplink and downlink configuration is a minimum value or a common number or a common multiple of the agreed value;
  • the second unit is specifically configured to:
  • a change period of the redundancy version used by the downlink transmission which is a divisor or a multiple of the total number of downlink subframes included in one radio frame or a field corresponding to the TDD uplink and downlink configuration
  • a change period of the redundancy version used in the downlink transmission which is a divisor or a multiple of the number of consecutive downlink subframes included in one radio frame or a field corresponding to the TDD uplink and downlink configuration
  • determining a change period of the redundancy version used for downlink transmission in one field which is a divisor or multiple of the number of consecutive downlink subframes included in the field corresponding to the TDD uplink and downlink configuration;
  • determining a change period of the redundancy version used for downlink transmission in one field which is a divisor or multiple of the total number of downlink subframes included in the field corresponding to the TDD uplink and downlink configuration;
  • a change period of the redundancy version used by the downlink transmission which is a divisor or a multiple of the number of consecutive downlink subframes included in the adjacent two radio frames corresponding to the TDD uplink and downlink configuration
  • the total number of downlink subframes included in a radio frame or a field corresponding to the TDD uplink and downlink configuration is a minimum value or a common number or a common multiple of the agreed value
  • determining a change period of the redundancy version used in the downlink transmission where the number of consecutive downlink subframes included in a radio frame or a field corresponding to the TDD uplink and downlink configuration is a minimum value or a common number or a common multiple of the agreed value;
  • a change period of the redundancy version used in the downlink transmission which is a minimum value or a common number or a common multiple of the consecutive downlink subframes and the agreed value included in the adjacent two radio frames corresponding to the TDD uplink and downlink configuration.
  • the second unit is specifically configured to:
  • the change period of the redundancy version adopted by the uplink transmission is 6; and/or,
  • the change period of the redundancy version adopted by the uplink transmission is 4; and/or,
  • the change period of the redundancy version adopted by the uplink transmission is 2; and/or,
  • the TDD uplink and downlink configuration is configured as 3, determining that the redundancy version of the uplink transmission has a change period of 3; and/or,
  • the change period of the redundancy version adopted by the uplink transmission is 1; and/or,
  • the change period of the redundancy version adopted for the uplink transmission is determined to be 5.
  • the second unit is specifically configured to:
  • the change period of the redundancy version adopted by the uplink transmission is 3; and/or,
  • the change period of the redundancy version adopted by the uplink transmission is 2; and/or,
  • the change period of the redundancy version adopted by the uplink transmission is 1; and/or,
  • the change period of the redundancy version used for the uplink transmission is determined to be 2 or 3, or the first half frame and the second half frame are 2 in one radio frame.
  • the second unit is specifically configured to:
  • the TDD uplink and downlink configuration is configured as 3, it is determined that the change period of the redundancy version used in the downlink transmission is 7, or the first half frame in one radio frame is 2, the second half frame is 5, or, in a wireless 3 in the subframes 5, 6, and 7 in the frame, 4 in the subframes 8, 9 in one radio frame, and 4, 1 in the next radio frame, or a sub-frame in a radio frame 4 in frames 5, 6, 7, 8 is 3 in subframe 9 in one radio frame and subframe 0, 1 in the next radio frame; and/or,
  • the change period of the redundancy version used for determining the downlink transmission is 8 or 4 or 2; and/or,
  • the change period of the redundancy version adopted by the downlink transmission is 9 or 3.
  • the second unit is specifically configured to:
  • the change period of the redundancy version used for determining the downlink transmission is 3; and/or,
  • the change period of the redundancy version adopted by the downlink transmission is 4 or 2; and/or,
  • the change period of the redundancy version used for determining the downlink transmission is 2 or 3, or 2, in the subframes 5 and 6 of one radio frame, 2, in one radio frame.
  • Subframe 9 and subframes 0 and 1 in the next radio frame are 3.
  • the agreed value is a pre-agreed or configured constant, or a number of subframes used for multi-subframe channel estimation for a frequency hopping period of uplink transmission and/or uplink.
  • the agreed value is a pre-agreed or configured constant, or a number of subframes used for the hopping period of the downlink transmission and/or the multi-subframe channel estimation for the downlink.
  • the common divisor is the greatest common divisor, and the common multiple is the least common multiple.
  • a channel estimation apparatus provided by an embodiment of the present application includes:
  • a change period determining unit 21 configured to determine a change period of a redundancy version adopted in the data transmission process
  • the subframe number determining unit 22 is configured to determine, according to the change period, a number of subframes that are used when performing multi-subframe channel estimation;
  • the channel estimation unit 23 is configured to perform multi-subframe channel estimation by using the subframe of the subframe number.
  • the subframe number determining unit is specifically configured to: determine a number of subframes to be used when performing multi-subframe channel estimation, which is a minimum value of the change period and a preset constant;
  • determining the number of subframes to be used when performing multi-subframe channel estimation is the change period.
  • the preset constant is 2 or 3 or 4;
  • the preset constant is a number of subframes in a radio frame used for transmitting the same transport block TB;
  • the preset constant is a number of consecutive subframes starting from a first subframe for transmitting the same TB in one radio frame
  • the preset constant is the number of consecutive subframes starting from the first subframe for transmitting the same TB in one field.
  • the change period determining unit is a determining device for the redundancy version change period.
  • a redundancy version determining apparatus provided by an embodiment of the present application includes:
  • a change period determining unit 31 configured to determine a change period of a redundancy version adopted in the data transmission process
  • the redundancy version determining unit 32 is configured to determine, according to the change period and the redundancy version sequence pattern, a redundancy version change pattern by using a first subframe in the first radio frame, where the first radio frame For a pre-agreed or configured radio frame, the first subframe is a pre-agreed or configured subframe, and the pattern is changed according to the redundancy version and current
  • the radio frame number and the subframe number corresponding to the data transmission determine the redundancy version corresponding to the data transmission in the current transmission subframe.
  • the redundancy version determining unit determines the redundancy version change pattern based on the change period and the redundancy version sequence pattern, starting with the first subframe in the first radio frame, and specifically includes:
  • the change period is T, starting with the first subframe in the first radio frame, starting with the first first-type subframe in each radio frame, and changing every T first-type subframes
  • the redundancy version is changed according to the redundancy version sequence pattern
  • the change period is T, starting with the first subframe in the first radio frame, starting with the first first type subframe in each field, and changing every T first type subframe
  • the redundancy version is changed according to the redundancy version sequence pattern
  • the first type of subframe is an uplink subframe
  • the first type of subframe is a downlink subframe
  • the first radio frame is a radio frame with a radio frame number of 0; and/or,
  • the first subframe is the first uplink subframe in one radio frame, or the first uplink subframe in one subframe; and/or,
  • the first subframe is the first downlink subframe in one radio frame, or the first downlink subframe in one subframe, or the first uplink subframe in one radio frame.
  • the first downlink subframe after that, or the first downlink subframe in the latter half of a radio frame.
  • the change period determining unit is a determining device for the redundancy version change period.
  • each of the foregoing units may be implemented by a physical device such as a processor, and each of the foregoing devices may be a network device on the network side, such as a base station, or a terminal device, such as a UE.
  • the foregoing downlink subframe includes a normal downlink subframe and a special subframe.
  • an apparatus includes a processor 1001 and a memory 1002, wherein a preset program is stored in the memory 1002, and the processor 1001 reads a program in the memory 1002 according to the program. Perform the following process:
  • a change period of the redundancy version adopted in the data transmission process is determined.
  • an apparatus includes a processor 1101 and a memory 1102, wherein a preset program is stored in the memory 1102, and the processor 1101 reads a program in the memory 1102 according to the process.
  • the following process is performed:
  • Multi-subframe channel estimation is performed using the subframes of the number of subframes.
  • an apparatus includes a processor 1201 and a memory 1202, wherein a preset program is stored in the memory 1202, and the processor 1201 reads a program in the memory 1202 according to the program. Perform the following process:
  • a redundancy version change pattern where the first radio frame is a pre-agreed or configured radio frame, starting from a first subframe in the first radio frame.
  • the first subframe is a pre-agreed or configured subframe, and the redundancy corresponding to the data transmission in the current transmission subframe is determined according to the redundancy version change pattern and the radio frame number and the subframe number corresponding to the current data transmission. version.
  • the processor and the memory are connected by a bus, and the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by the processor and memory represented by the memory. Various circuits are linked together.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein.
  • the bus interface provides an interface.
  • the processor is responsible for managing the bus architecture and the usual processing, and the memory can store the data that the processor uses when performing operations.
  • the change period of the redundant version of the repeated transmission is determined according to the TDD uplink and downlink configuration, to support multi-subframe channel estimation during repeated transmission, and the transmission performance is improved.
  • embodiments of the present application can be provided as a method, system, or computer program product.
  • the present application can take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment in combination of software and hardware.
  • the application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) including computer usable program code.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

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Abstract

L'invention concerne un procédé et un dispositif de détermination de version de redondance et de cycle de changement, et d'estimation de canal, utilisés pour déterminer un cycle de changement d'une version de redondance adoptée dans une transmission de données. La présente invention concerne un procédé de détermination d'un cycle de changement d'une version de redondance. Le procédé consiste à : déterminer une configuration de liaison montante/liaison descendante de duplex à répartition dans le temps (TDD) ; et d'après la configuration de liaison montante/descendante TDD, déterminer le cycle de changement d'une version de redondance adoptée dans un processus de transmission de données.
PCT/CN2016/105005 2015-11-13 2016-11-08 Procédé et dispositif de détermination de version de redondance et de cycle de changement, et d'estimation de canal WO2017080430A1 (fr)

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