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WO2018171530A1 - Procédé de transmission d'informations de rétroaction, dispositif de terminal et dispositif de réseau d'accès - Google Patents

Procédé de transmission d'informations de rétroaction, dispositif de terminal et dispositif de réseau d'accès Download PDF

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Publication number
WO2018171530A1
WO2018171530A1 PCT/CN2018/079344 CN2018079344W WO2018171530A1 WO 2018171530 A1 WO2018171530 A1 WO 2018171530A1 CN 2018079344 W CN2018079344 W CN 2018079344W WO 2018171530 A1 WO2018171530 A1 WO 2018171530A1
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WIPO (PCT)
Prior art keywords
time
time unit
carrier
unit
terminal device
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Ceased
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PCT/CN2018/079344
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English (en)
Chinese (zh)
Inventor
鲁振伟
刘德平
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Publication date
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Publication of WO2018171530A1 publication Critical patent/WO2018171530A1/fr
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/1607—Details of the supervisory signal

Definitions

  • Embodiments of the present application relate to communication systems, and in particular, to a data transmission method, a terminal device, and an access network device.
  • cross-carrier feedback is a technique in which feedback information and data are transmitted on different carriers.
  • the access network device transmits data to the terminal device on the first time unit (eg, subframe n) of the first carrier, and then the terminal device will be in the second time unit of the second carrier ( The sub-frame n+k) sends feedback information to the access network device, where the parameter k may be a preset parameter, and the time unit length of the first carrier is the same as the time unit length of the second carrier.
  • the time unit length of the first carrier is different from the time unit length of the second carrier, the existing cross-carrier scheduling will not be possible.
  • the embodiment of the present application provides a feedback information transmission method, a terminal device, and an access network device, which can implement data and feedback information transmission between carriers with different time unit lengths.
  • the embodiment of the present application provides a feedback information transmission method, including: an access network device transmitting first data in a first time unit of a first carrier and a terminal device; a time unit, a first parameter, and a first time length determine a second time unit of the second carrier, where the first parameter is a preset parameter, the first parameter is 0 or a positive integer, and the first duration is Determining a length of time of the first time unit of the first carrier or a length of time of the second time unit of the second carrier, where a length of time of the first time unit is different from a time length of the second time unit;
  • the access network device transmits feedback information to the terminal device on the second time unit of the second carrier, where the feedback information is used to feed back the transmission status of the first data.
  • the access network device determines the second time unit of the second carrier according to the first time unit, the first parameter, and the first duration, where the access network device determines the The first time length of the first time unit is the first time, and the first time length is the first parameter multiplied by the first time length; the access network device is according to the first time A second time unit of the second carrier is determined at a time.
  • the determining, by the access network device, the second time unit of the second carrier according to the first moment the determining, by the access network device, determining the second carrier according to the first moment a third time unit, wherein the third time unit is a time unit corresponding to the second time on the second carrier, and the second time unit is a next time unit of the third time unit.
  • the second time unit is a time unit corresponding to the second time on the second carrier.
  • the determining, by the access network device, the second time unit of the second carrier according to the first moment the determining, by the access network device, determining the second carrier according to the first moment a third time unit, where the third time unit is a time unit corresponding to the second time on the second carrier; and the access network device determines that the third time unit of the second carrier is backward biased And shifting the first offset into a second time unit of the second carrier, where the first offset is a preset offset.
  • the access network device determines that the third time unit of the second carrier is backward offset by a first offset into a fourth time unit of the second carrier, the first The offset is a preset offset; the second time unit is the next time unit of the fourth time unit.
  • the access network device transmits second data to the terminal device in a fifth time unit of the first carrier; the access network device according to the fifth time unit, Determining, by the second parameter, a second time unit of the second carrier, where the second parameter is a preset parameter, the second parameter is 0 or a positive integer, and the second duration is the first carrier a length of time of the fifth time unit or a length of time of the second time unit of the second carrier, the length of time of the fifth time unit being different from the time length of the second time unit; Sending feedback information to the terminal device on the second time unit of the second carrier, where the feedback information is used to feed back the transmission status of the first data and the second data.
  • the first time unit includes at least one of a subframe, a time slot, a minislot, and a symbol
  • the second time unit includes a subframe, a time slot, a minislot, and a symbol.
  • At least one of the third time unit includes at least one of a subframe, a time slot, a minislot, and a symbol
  • the fourth time unit includes at least one of a subframe, a time slot, a minislot, and a symbol
  • the fifth time unit includes at least one of a subframe, a time slot, a minislot, and a symbol.
  • the access network device transmits the first data to the terminal device in the first time unit of the first carrier, including: the access network device sends the first time unit of the first carrier to the terminal device a first data, the access network device transmitting feedback information to the terminal device on a second time unit of the second carrier, where: the access network device is in a second time unit of the second carrier Receiving feedback information from the terminal device; or the access network device transmitting the first data to the terminal device in the first time unit of the first carrier, including: the first time unit of the access network device in the first carrier
  • the terminal device receives the first data, and the access network device transmits the feedback information to the terminal device on the second time unit of the second carrier, where: the access network device is in the second carrier The feedback information is sent to the terminal device on the second time unit.
  • the embodiment of the present application provides a method for transmitting feedback information, including: a terminal device transmitting first data in a first time unit of a first carrier with an access network device or other terminal device; the terminal device Determining, according to the first time unit, the first parameter, and the first duration, a second time unit of the second carrier, where the first parameter is a preset parameter, the first parameter is 0 or a positive integer, the first a duration of time of the first time unit of the first carrier or a length of time of the second time unit of the second carrier, a length of time of the first time unit and a length of time of the second time unit
  • the terminal device transmits feedback information to the access network device on the second time unit of the second carrier, where the feedback information is used to feed back the transmission status of the first data.
  • the determining, by the terminal device, the second time unit of the second carrier according to the first time unit, the first parameter, and the first duration includes: determining, by the terminal device, the first time unit The first time length is the first time, and the first time length is the first parameter multiplied by the first time length; the terminal device determines the first time according to the first time The second time unit of the two carriers.
  • the determining, by the terminal device, the second time unit of the second carrier according to the first time includes: determining, by the terminal device, a third time of the second carrier according to the first time a unit, the third time unit is a time unit corresponding to the second time on the second carrier, and the second time unit is a next time unit of the third time unit.
  • the second time unit is a time unit corresponding to the second time on the second carrier.
  • the third time unit is a time unit corresponding to the second time on the second carrier; the terminal device determines that the third time unit of the second carrier is backward offset by a first offset And a second time unit of the second carrier, where the first offset is a preset offset.
  • the terminal device determines that the third time unit of the second carrier is backward offset by a first offset into a fourth time unit of the second carrier, the first offset The amount is a preset offset; the second time unit is the next time unit of the fourth time unit.
  • the method further includes: the terminal device transmitting second data with the access network device in a fifth time unit of the first carrier; the terminal device according to the fifth The time unit, the second parameter, and the second duration determine a second time unit of the second carrier, the second parameter is a preset parameter, the second parameter is 0 or a positive integer, and the second duration is the The length of time of the fifth time unit of the first carrier or the length of time of the second time unit of the second carrier, the length of time of the fifth time unit being different from the time length of the second time unit;
  • the device transmits feedback information to the terminal device on the second time unit of the second carrier, where the feedback information is used to feed back the transmission status of the first data and the second data.
  • the first time unit includes at least one of a subframe, a time slot, a minislot, and a symbol
  • the second time unit includes a subframe, a time slot, a minislot, and a symbol.
  • At least one of the third time unit includes at least one of a subframe, a time slot, a minislot, and a symbol
  • the fourth time unit includes at least one of a subframe, a time slot, a minislot, and a symbol
  • the fifth time unit includes at least one of a subframe, a time slot, a minislot, and a symbol.
  • the terminal device transmits the first data to the access network device or other terminal device in the first time unit of the first carrier, including: the first time unit of the terminal device in the first carrier Sending the first data to the access network device, where the terminal device transmits the feedback information to the access network device on the second time unit of the second carrier, including: the terminal device is in the second carrier Receiving feedback information from the access network device on the second time unit; or transmitting, by the terminal device, the first data to the access network device or other terminal device in the first time unit of the first carrier, including: the terminal device Receiving, by the first time unit of the first carrier, the first data from the access network device, where the terminal device transmits the feedback information to the access network device on the second time unit of the second carrier, including: Transmitting, by the terminal device, feedback information to the access network device on a second time unit of the second carrier; or the first time unit of the first carrier and the access network device or other And transmitting, by the terminal device, the first data, where the terminal device sends the first
  • an embodiment of the present application provides an access network device, where the access network device includes a transmission unit and a determining unit. a transmitting unit, configured to transmit first data to the terminal device in a first time unit of the first carrier, and a determining unit, configured to determine a second time of the second carrier according to the first time unit, the first parameter, and the first duration a unit, the first parameter is a preset parameter, the first parameter is 0 or a positive integer, and the first duration is a length of time of the first time unit of the first carrier or the second carrier.
  • the length of time of the second time unit, the length of time of the first time unit is different from the time length of the second time unit; the transmitting unit is further configured to be used on the second time unit of the second carrier
  • the terminal device transmits feedback information, where the feedback information is used to feed back a transmission status of the first data.
  • the determining unit is configured to determine a second time unit of the second carrier according to the first time unit, the first parameter, and the first duration, the determining unit determining the The first time length of the end time of the time unit is the first time, the first time length is the first parameter multiplied by the first time length; the determining unit is determined according to the first time a second time unit of the second carrier.
  • the determining unit determines the second time unit of the second carrier according to the first moment, where the determining unit determines the third time of the second carrier according to the first moment a unit, the third time unit is a time unit corresponding to the second time on the second carrier, and the second time unit is a next time unit of the third time unit.
  • the second time unit is a time unit corresponding to the second time on the second carrier.
  • the determining unit determines the second time unit of the second carrier according to the first moment, where the determining unit determines the third time of the second carrier according to the first moment a unit, the third time unit being a time unit corresponding to the first time on the second carrier; the determining unit determining that the third time unit of the second carrier is backward offset by a first offset
  • the first offset is a preset offset.
  • the determining unit determines that the third time unit of the second carrier is backward offset by a first offset into a fourth time unit of the second carrier, the first offset The amount is a preset offset; the second time unit is the next time unit of the fourth time unit.
  • the transmitting unit is further configured to transmit second data to the terminal device in a fifth time unit of the first carrier;
  • the determining unit is configured according to the fifth time unit, Determining, by the second parameter, a second time unit of the second carrier, where the second parameter is a preset parameter, the second parameter is 0 or a positive integer, and the second duration is the first carrier a length of time of the fifth time unit or a length of time of the second time unit of the second carrier, the time length of the fifth time unit being different from the time length of the second time unit;
  • the first time unit includes at least one of a subframe, a time slot, a minislot, and a symbol
  • the second time unit includes a subframe, a time slot, a minislot, and a symbol.
  • At least one of the third time unit includes at least one of a subframe, a time slot, a minislot, and a symbol
  • the fourth time unit includes at least one of a subframe, a time slot, a minislot, and a symbol
  • the fifth time unit includes at least one of a subframe, a time slot, a minislot, and a symbol.
  • the transmitting unit transmits the first data to the terminal device in the first time unit of the first carrier, including: the transmitting unit sends the first information to the terminal device in the first time unit of the first carrier Data, the transmission unit transmitting feedback information with the terminal device on a second time unit of the second carrier, including: the transmission unit is from the terminal device on a second time unit of the second carrier Receiving feedback information; or transmitting, by the transmitting unit, the first data to the terminal device in the first time unit of the first carrier, including: the transmitting unit receiving the first data from the terminal device in the first time unit of the first carrier, where Transmitting, by the transmitting unit, the feedback information with the terminal device on the second time unit of the second carrier, where the transmitting unit sends feedback information to the terminal device on a second time unit of the second carrier .
  • the processing unit may be a processor, and the transmission unit may be a transceiver.
  • an embodiment of the present application provides a terminal device, where the terminal device includes a transmission unit and a determining unit.
  • a transmitting unit configured to transmit first data to the access network device or other terminal device in the first time unit of the first carrier; and the determining unit, configured to determine, according to the first time unit, the first parameter, and the first duration a second time unit of the second carrier, the first parameter is a preset parameter, the first parameter is 0 or a positive integer, and the first duration is a length of time of the first time unit of the first carrier or The length of time of the second time unit of the second carrier, the time length of the first time unit is different from the time length of the second time unit; the transmission unit is further configured to be in the second carrier
  • the second time unit transmits feedback information to the access network device, and the feedback information is used to feed back the transmission status of the first data.
  • the determining unit is configured to determine a second time unit of the second carrier according to the first time unit, the first parameter, and the first duration, the determining unit determining the first The first time length of the end time of the time unit is the first time, the first time length is the first parameter multiplied by the first time length; the determining unit determines the location according to the first time A second time unit of the second carrier.
  • the determining unit determines the second time unit of the second carrier according to the first moment, the determining unit determining, according to the first moment, a third time unit of the second carrier
  • the third time unit is a time unit corresponding to the second time on the second carrier
  • the second time unit is a next time unit of the third time unit.
  • the second time unit is a time unit corresponding to the second time on the second carrier.
  • the determining unit determines the second time unit of the second carrier according to the first moment, the determining unit determining, according to the first moment, a third time unit of the second carrier, where The third time unit is a time unit corresponding to the second time on the second carrier; the determining unit determines that the third time unit of the second carrier is backward offset by a first offset a second time unit of the second carrier, the first offset being a preset offset.
  • the determining unit determines that the third time unit of the second carrier is backward offset by a first offset into a fourth time unit of the second carrier, the first offset a preset offset; the second time unit being the next time unit of the fourth time unit.
  • the transmitting unit is further configured to: transmit, by the fifth time unit of the first carrier, the second data to the access network device; the determining unit is configured according to the fifth time unit, The second parameter and the second duration determine a second time unit of the second carrier, where the second parameter is a preset parameter, the second parameter is 0 or a positive integer, and the second duration is the first carrier a length of time of the fifth time unit or a time length of the second time unit of the second carrier, the time length of the fifth time unit being different from the time length of the second time unit; the transmission unit, further And transmitting, by the terminal device, feedback information on a second time unit of the second carrier, where the feedback information is used to feed back a transmission status of the first data and the second data.
  • the first time unit includes at least one of a subframe, a time slot, a minislot, and a symbol
  • the second time unit includes a subframe, a time slot, a minislot, and a symbol At least one;
  • the third time unit includes at least one of a subframe, a time slot, a minislot, and a symbol;
  • the fourth time unit includes at least one of a subframe, a time slot, a minislot, and a symbol;
  • the fifth time unit includes at least one of a subframe, a time slot, a minislot, and a symbol.
  • the transmitting unit transmits the first data to the access network device or other terminal device in the first time unit of the first carrier, including: the transmitting unit is in the first time unit of the first carrier
  • the access network device sends the first data
  • the transmitting unit transmits the feedback information to the access network device on the second time unit of the second carrier, where: the transmitting unit is in the second carrier Receiving feedback information from the access network device on the second time unit; or transmitting, by the transmission unit, the first data to the access network device or other terminal device in the first time unit of the first carrier, including: the transmission unit is The first time unit of the first carrier receives the first data from the access network device, and the transmitting unit transmits the feedback information to the access network device on the second time unit of the second carrier, including: the transmitting Transmitting, by the unit, feedback information to the access network device on a second time unit of the second carrier; or the first time unit of the first carrier and the access network device or other Transmitting, by the end device, the first data, that: the
  • the processing unit may be a processor, and the transmission unit may be a transceiver.
  • an embodiment of the present application provides a computer storage medium for storing computer software instructions used by the access network device, including a program designed to perform the foregoing aspects.
  • an embodiment of the present application provides a computer storage medium for storing computer software instructions used by the terminal device, which includes a program designed to perform the above aspects.
  • the first network unit and the terminal device transmit the first data in the first time unit of the first carrier, where the access network device determines the second carrier according to the first time unit, the first parameter, and the first duration.
  • the second time unit, the first parameter is a preset parameter, the first parameter is 0 or a positive integer, and the first duration is a time length of the first time unit of the first carrier or the a length of time of the second time unit of the second carrier, where the time length of the first time unit is different from the time length of the second time unit, whereby the access network device and the terminal device may be in the first carrier and the first
  • the transmission of data and feedback information is completed when the time units of the two carriers are different, which improves the flexibility of cross-carrier feedback.
  • FIG. 1 is a schematic architectural diagram of a system in accordance with an embodiment of the present application.
  • FIG. 2 is a schematic diagram of cross-carrier feedback in accordance with an embodiment of the present application.
  • FIG. 3 is a data transmission method according to an embodiment of the present application.
  • FIG. 4 is an access network device according to an embodiment of the present application.
  • FIG. 5 is another access network device according to an embodiment of the present application.
  • FIG. 6 is a terminal device according to an embodiment of the present application.
  • FIG. 7 is another terminal device according to an embodiment of the present application.
  • FIG. 8 is a cross-carrier feedback information transmission method according to an embodiment of the present application.
  • FIG. 9 is another cross-carrier feedback information transmission method according to an embodiment of the present application.
  • the access network device transmits data to the terminal device 1 on the first carrier, and then the access network device receives feedback information from the terminal device 1 on the second carrier, and the feedback information is used for Indicates the transmission status of the data, that is, whether the terminal device 1 successfully receives the data.
  • the terminal device 1 transmits data to the access network on the first carrier, and then the terminal device 1 receives feedback information from the access network device on the second carrier, where the feedback information is used to indicate the data transmission status. That is, whether the access network device successfully receives the data.
  • the terminal device 1 transmits data to the terminal device 2 on the first carrier, the terminal device 1 transmitting feedback information to the access network device on the second carrier, or the terminal device 2 transmitting feedback information to the access network device on the second carrier.
  • the time unit length of the first carrier is different from the time unit length of the second carrier, as shown in FIG. 2 .
  • the time unit of the first carrier or the second carrier may be a subframe, a time slot, a minislot, or a symbol.
  • the symbol may be a fixed length of time, or may be a length of time of a plurality of fixed time lengths, and the plurality of fixed time lengths may be used as an alternative to the length of time of the symbol.
  • the length of the subframe is a predefined length of time, for example, 1 ms.
  • a time slot includes a number of symbols, for example, may include 7 symbols or 14 symbols.
  • the microslot contains a symbol of at least one symbol and at most one symbol less than the number of symbols included in the slot.
  • the access network device involved in the present application is a device deployed in a wireless access network to provide a wireless communication function for a terminal device.
  • the access network device may include various forms of base stations (BSs), such as macro base stations or micro base stations, relay stations or access points, and the like.
  • BSs base stations
  • the name of the device having the access network device function may be different, for example, it is an access network device in the fifth generation 5G network, and in the LTE network, It is an evolved Node B (referred to as an eNB or an eNodeB), and is called a Node B or the like in a third-generation 3G network, or a Road Side Unit (RSU) in V2V communication.
  • eNB evolved Node B
  • RSU Road Side Unit
  • the terminal device referred to in the present application may include various handheld devices having wireless communication functions, such as an in-vehicle device, a wearable device, a computing device, or other processing device connected to a wireless modem, a mobile station (MS), Terminal or User Equipment (UE), etc.
  • MS mobile station
  • UE User Equipment
  • the above-mentioned devices are collectively referred to as terminal devices.
  • FIG. 3 is a method and system for transmitting feedback information according to an embodiment of the present application, and the specific steps are as follows:
  • Step 31 The access network device transmits the first data to the terminal device in the first time unit of the first carrier.
  • the access network device sends the first data to the terminal device in the first time unit of the first carrier, and the terminal device receives the first data from the access network device in the first time unit of the first carrier.
  • the terminal device sends the first data to the access network device in the first time unit of the first carrier, and the access network device receives the first data from the terminal device in the first time unit of the first carrier.
  • Step 31 The terminal device transmits the first data to the other terminal device in the first time unit of the first carrier.
  • the terminal device sends the first data to the other terminal device in the first time unit of the first carrier, and the other terminal device receives the first data from the terminal device in the first time unit of the first carrier.
  • steps 31 and 31 are steps in different scenarios (eg, downlink data transmission, uplink data transmission, and side line data transmission). Therefore, for different scenarios, the embodiment of FIG. 3 only needs to perform step 31 or Just go to step 31 ⁇ .
  • Step 32 The access network device determines a second time unit of the second carrier according to the first time unit, the first parameter, and the first duration.
  • Step 33 The terminal device determines a second time unit of the second carrier according to the first time unit, the first parameter, and the first duration.
  • the first parameter is a preset parameter, or the first parameter is included in control information sent by the access network device to the terminal device, or the first parameter is connected.
  • the control information may be Downlink Control Information (DCI) or Radio Resource Control (RRC) signaling or media access control (Medium) as indicated by the control information sent by the network access device to the terminal device.
  • DCI Downlink Control Information
  • RRC Radio Resource Control
  • Medium media access control
  • the downlink control information may include a time-frequency domain resource for transmitting data
  • the first parameter is 0 or a positive integer
  • the first duration is a first time unit of the first carrier The length of time or the length of time of the second time unit of the second carrier, the length of time of the first time unit being different from the length of time of the second time unit.
  • steps 32 and 33 is not limited.
  • Step 34 The access network device transmits feedback information to the terminal device on a second time unit of the second carrier, where the feedback information is used to feed back a transmission state of the first data.
  • step 34 may be the transmission of the feedback information in the downlink data transmission, that is, the access network device receives the feedback information from the terminal device on the second time unit of the second carrier, where the terminal device is in the second Sending feedback information to the access network device on the second time unit of the carrier; or transmitting the feedback information in the uplink data transmission, that is, the access network device is on the second time unit of the second carrier to the terminal
  • the device sends feedback information, and the terminal device receives feedback information from the access network device on the second time unit of the second carrier; or transmits the feedback information in the side line data transmission, that is, the terminal device is in the second Sending feedback information to the access network device on a second time unit of the carrier, the access network device receiving feedback information from the terminal device on a second time unit of the second carrier.
  • the feedback information is sent by the other terminal
  • step 31 for the V2X side line data transmission, the terminal device receives the first data from the other terminal device in the first time unit of the first carrier, and the other terminal device is in the first carrier A time unit transmits the first data to the terminal device.
  • the terminal device sends the feedback information to the access network device, and the feedback information is used to feed back the transmission status of the first data, for example, whether the terminal device successfully receives the first data.
  • the access network device or the terminal device determines a second time unit of the second carrier according to the first time unit, the first parameter, and the first duration.
  • the method includes: the access network device or the terminal device determines that the first time length of the first time unit is the first time, and the first time length is the first parameter multiplied by the The first time.
  • the access network device or the terminal device determines a second time unit of the second carrier according to the first moment.
  • the second time unit is a time unit corresponding to the second time on the second carrier.
  • the determining, by the access network device or the terminal device, the second time unit of the second carrier according to the first moment the: the access network device or the terminal device according to the first moment Determining a third time unit of the second carrier, where the third time unit is a time unit corresponding to the second time on the second carrier, and the second time unit is a next time of the third time unit Time unit.
  • the second time unit is a time unit corresponding to the second time on the second carrier.
  • the determining, by the access network device, the second time unit of the second carrier according to the first moment the determining, by the access network device, determining the second carrier according to the first moment a third time unit, where the third time unit is a time unit corresponding to the second time on the second carrier; and the access network device determines that the third time unit of the second carrier is backward biased
  • the first offset is shifted to a second time unit of the second carrier.
  • the first offset is a preset offset, or the first offset is included in control information sent by the access network device to the terminal device, where the control information may be downlink control information or RRC information. make.
  • the access network device or the terminal device determines that the third time unit of the second carrier is backward offset by the first offset into a fourth time unit of the second carrier.
  • the second time unit is the next time unit of the fourth time unit.
  • the access network device or the terminal device determines the second time unit of the second carrier according to the first time unit, the first parameter, and the first duration, including: the access network device Or the terminal device determines that the first time length of the first time unit is the first time, and the first time length is the first parameter multiplied by the first time length; the access The network device or the terminal device offsets the first time back by the first offset to obtain a second time; the access network device or the terminal device determines the second carrier according to the second time The second time unit.
  • the first offset is a preset offset, or the first offset is included in control information sent by the access network device to the terminal device, and the control information may be downlink control information.
  • the access network device transmits the second data to the terminal device in a fifth time unit of the first carrier or the third carrier; the access network device is configured according to the fifth The time unit, the second parameter, and the second duration determine a second time unit of the second carrier, where the second parameter is a preset parameter, or the second parameter is a control included in the access network device and sent to the terminal device In the information, or the second parameter is indicated by the control information sent by the access network device to the terminal device, where the control information may be DCI, MAC signaling or RRC signaling, and the DCI may include when the data is sent.
  • the control information may be DCI, MAC signaling or RRC signaling, and the DCI may include when the data is sent.
  • the second parameter is 0 or a positive integer
  • the second duration is a time length of a fifth time unit of the first carrier or a third carrier or a second time unit of the second carrier a length of time, the length of time of the fifth time unit is different from the time length of the second time unit;
  • the access network device transmitting feedback information with the terminal device on a second time unit of the second carrier Said anti
  • the feed information is used to feed back the transmission status of the first data and the second data. That is, for different data received by the same access network device or the same terminal device on different time units of the first carrier, the feedback information is sent on the same time unit of the second carrier, that is, joint feedback.
  • the third carrier and the first carrier may be the same carrier or different carriers.
  • the first time unit includes at least one of a subframe, a time slot, a minislot, and a symbol
  • the second time unit includes a subframe, a time slot, a minislot, and a symbol
  • At least one of the third time unit including at least one of a subframe, a time slot, a minislot, and a symbol
  • the fourth time unit including at least one of a subframe, a time slot, a minislot, and a symbol
  • the fifth time unit includes at least one of a subframe, a time slot, a minislot, and a symbol.
  • the access network device or the terminal device determines the second time unit of the second carrier according to the first time unit, the first parameter, and the first duration of the first carrier, where the first duration is the first carrier a time length of the first time unit or a time length of the second time unit of the second carrier, the time length of the first time unit being different from the time length of the second time unit, thereby, the access network device or the terminal
  • the device may complete the cross-carrier feedback when the time units of the first carrier and the second carrier are different, and the access network device and the terminal device may complete the transmission of the data and the feedback information when the time units of the first carrier and the second carrier are different in length. Increases the flexibility of cross-carrier feedback.
  • FIG. 4 shows a possible schematic diagram of an access network device for performing the method in the embodiment of FIG. 3, the access network device comprising a transmission unit 401, a determining unit 402.
  • the transmitting unit 401 is configured to transmit the first data to the terminal device in the first time unit of the first carrier;
  • the determining unit 402 is configured to determine, according to the first time unit, the first parameter, and the first duration, a second time unit of the second carrier, where the first parameter is a preset parameter, or the first parameter is included
  • the control information may be downlink control information or radio resource control.
  • the downlink control information may include a time-frequency domain resource for transmitting data, the first parameter is 0 or a positive integer, and the first duration is a first time of the first carrier a length of time of the unit or a length of time of the second time unit of the second carrier, the length of time of the first time unit being different from the length of time of the second time unit;
  • the transmitting unit 401 is further configured to: send feedback information to the terminal device on a second time unit of the second carrier, where the feedback information is used to feed back a transmission status of the first data.
  • the determining unit 402 is configured to determine, according to the first time unit, the first parameter, and the first duration, a second time unit of the second carrier, where the determining unit 402 determines The first time length of the first time unit is the first time, and the first time length is the first parameter multiplied by the first time length; the determining unit 402 is according to the first time A second time unit of the second carrier is determined at a time.
  • the determining unit 402 determines the second time unit of the second carrier according to the first moment, where the determining unit 402 determines the second carrier according to the first moment. a third time unit, wherein the third time unit is a time unit corresponding to the second time on the second carrier, and the second time unit is a next time unit of the third time unit.
  • the second time unit is a time unit corresponding to the second time on the second carrier.
  • the determining unit 402 determines the second time unit of the second carrier according to the first moment, where the determining unit 402 determines the second carrier according to the first moment. a third time unit, wherein the third time unit is a time unit corresponding to the first time on the second carrier; the determining unit 402 determines that the third time unit of the second carrier is offset backward by a first The offset is a second time unit of the second carrier, and the first offset is a preset offset.
  • the determining unit 402 determines that the third time unit of the second carrier is backward offset by a first offset into a fourth time unit of the second carrier, where the first offset
  • the shift amount is a preset offset; the second time unit is the next time unit of the fourth time unit.
  • the transmitting unit 401 is further configured to transmit second data to the terminal device in a fifth time unit of the first carrier or the third carrier;
  • the determining unit 402 is configured according to the Determining, by the fifth time unit, the second parameter, and the second duration, a second time unit of the second carrier, where the second parameter is a preset parameter, the second parameter is a preset parameter, or the second parameter Is included in the control information sent by the access network device to the terminal device, or the second parameter is indicated by the control information sent by the access network device to the terminal device, where the control information may be DCI or RRC signaling.
  • the DCI may include a time-frequency domain resource for transmitting data, the second parameter is 0 or a positive integer, and the second duration is a time of the fifth time unit of the first carrier or the third carrier. a length or a length of time of the second time unit of the second carrier, the length of time of the fifth time unit being different from the time length of the second time unit; the transmitting unit 401 is further configured to be in the Second carrier Between the upper unit and the terminal device transmitting the feedback information, the feedback information for transmitting said first feedback state data and the second data.
  • the third carrier and the first carrier may be the same carrier or different carriers.
  • the first time unit includes at least one of a subframe, a time slot, a minislot, and a symbol;
  • the second time unit includes a subframe, a time slot, a minislot, and a symbol.
  • At least one of the third time unit includes at least one of a subframe, a time slot, a minislot, and a symbol;
  • the fourth time unit includes at least one of a subframe, a time slot, a minislot, and a symbol,
  • the fifth time unit includes at least one of a subframe, a time slot, a minislot, and a symbol.
  • the transmitting unit 401 transmits the first data to the terminal device in the first time unit of the first carrier, including: the transmitting unit 401 (which may also be a sending unit) in the first carrier A time unit sends the first data to the terminal device, and the transmission unit 401 transmits the feedback information to the terminal device on the second time unit of the second carrier, including: the transmission unit 401 (may also be a receiving unit) Receiving feedback information from the terminal device on a second time unit of the second carrier; or the transmitting unit 401 transmitting first data to the terminal device in a first time unit of the first carrier, including: the transmitting The unit 401 (which may also be a receiving unit) receives first data from the terminal device in a first time unit of the first carrier, and the transmitting unit 401 transmits feedback to the terminal device on a second time unit of the second carrier
  • the information includes: the transmitting unit 401 (which may also be a sending unit) sends feedback information to the terminal device on a second time unit of the second carrier.
  • the transmission unit 401 may be a transceiver 501
  • the sending unit may be a transmitter
  • the determining unit 402 may be a processor 502
  • the receiving unit may be a receiver
  • the access network device may further include a memory 503, where the memory 503 is used to store program codes and data of the terminal device.
  • the access network device includes a transceiver 501, a processor 502, and Memory 503.
  • the access network device determines the second time unit of the second carrier according to the first time unit of the first carrier, the first parameter, and the first duration, where the first duration is the first time of the first carrier
  • the length of time of the unit or the length of time of the second time unit of the second carrier, the length of time of the first time unit is different from the time length of the second time unit, whereby the access network device or the terminal device can be
  • the cross-carrier feedback is completed, and the access network device and the terminal device can complete the transmission of the data and the feedback information when the time units of the first carrier and the second carrier are different, and the information is improved. Flexibility across cross-carrier feedback.
  • FIG. 6 shows a possible structural diagram of a terminal device for performing the method involved in the embodiment of FIG. 3, the access network device comprising a transmission unit 601 and a determining unit 602.
  • the transmitting unit 601 is configured to transmit first data to the access network device or other terminal device in the first time unit of the first carrier, and the determining unit 602, configured to use, according to the first time unit, the first parameter, and the first duration Determining a second time unit of the second carrier, where the first parameter is a preset parameter, or the first parameter is included in control information sent by the access network device to the terminal device, or the first parameter is
  • the control information may be Downlink Control Information (DCI) or Radio Resource Control (RRC) signaling or media access control, as indicated by the control information sent by the access network device to the terminal device.
  • DCI Downlink Control Information
  • RRC Radio Resource Control
  • the downlink control information may include a time-frequency domain resource for transmitting data, the first parameter is 0 or a positive integer, and the first duration is a first time of the first carrier
  • the length of time of the unit or the length of time of the second time unit of the second carrier, the length of time of the first time unit and the length of time of the second time unit are not
  • the transmission unit 601 is further configured to: send feedback information to the access network device on a second time unit of the second carrier, where the feedback information is used to feed back a transmission status of the first data.
  • the determining unit 602 is configured to determine, according to the first time unit, the first parameter, and the first duration, a second time unit of the second carrier, where the determining unit 602 determines The first time length of the first time unit is the first time, and the first time length is the first parameter multiplied by the first time length; the determining unit 602 is configured according to the first time A second time unit of the second carrier is determined at a time.
  • the determining unit 602 determines, according to the first time, the second time unit of the second carrier, where the determining unit 602 determines the second carrier according to the first time. a third time unit, wherein the third time unit is a time unit corresponding to the second time on the second carrier, and the second time unit is a next time unit of the third time unit.
  • the second time unit is a time unit corresponding to the second time on the second carrier.
  • the determining unit 602 determines the second time unit of the second carrier according to the first moment, where the determining unit 602 determines the third time of the second carrier according to the first moment.
  • the third time unit is a time unit corresponding to the second time on the second carrier; the determining unit 602 determines that the third time unit of the second carrier is offset backward by a first offset
  • the quantity is a second time unit of the second carrier, and the first offset is a preset offset.
  • the determining unit 602 determines that the third time unit of the second carrier is backward offset by a first offset into a fourth time unit of the second carrier, where the first offset
  • the shift amount is a preset offset; the second time unit is the next time unit of the fourth time unit.
  • the transmitting unit 601 is further configured to: in a fifth time unit of the first carrier or the third carrier, transmit second data to the access network device; the determining unit 602 is configured according to Determining, by the fifth time unit, the second parameter, and the second duration, a second time unit of the second carrier, where the second parameter is a preset parameter, the second parameter is a preset parameter, or the The second parameter is included in the control information sent by the access network device to the terminal device, or the second parameter is indicated by the control information sent by the access network device to the terminal device, and the control information may be DCI or RRC.
  • the DCI may include a time-frequency domain resource for transmitting data, the second parameter is 0 or a positive integer, and the second duration is a fifth time unit of the first carrier or the third carrier.
  • the length of time or the length of time of the second time unit of the second carrier, the length of time of the fifth time unit is different from the time length of the second time unit; the transmission unit 601 is further used in Second of the second carrier And transmitting, by the terminal device, feedback information, where the feedback information is used to feed back a transmission state of the first data and the second data.
  • the third carrier and the first carrier may be the same carrier or different carriers.
  • the first time unit includes at least one of a subframe, a time slot, a minislot, and a symbol;
  • the second time unit includes a subframe, a time slot, a minislot, and a symbol.
  • At least one of the third time unit includes at least one of a subframe, a time slot, a minislot, and a symbol;
  • the fourth time unit includes at least one of a subframe, a time slot, a minislot, and a symbol,
  • the fifth time unit includes at least one of a subframe, a time slot, a minislot, and a symbol.
  • the transmitting unit 601 transmits the first data to the access network device or other terminal device in the first time unit of the first carrier, including: the transmitting unit 601 (may also be a sending unit) Transmitting, by the first time unit of the first carrier, the first data to the access network device, where the transmitting unit 601 transmits the feedback information to the access network device on the second time unit of the second carrier, including: The transmission unit 601 (which may also be a receiving unit) receives feedback information from the access network device on a second time unit of the second carrier; or the transmission unit 601 is in a first time unit of the first carrier
  • the first data is transmitted by the access network device or the other terminal device, including: the transmitting unit 601 (which may also be a receiving unit) receives the first data from the access network device in the first time unit of the first carrier, where the transmitting unit The transmitting information to the access network device on the second time unit of the second carrier, where the transmitting unit 601 (which may also be a sending unit) is on the second
  • the transmission unit 601 may be a transceiver 701, the sending unit may be a transmitter, the determining unit 602 may be a processor 702, and the receiving unit may be a receiver, and
  • the terminal device may further include a memory 703 for storing program codes and data of the terminal device.
  • the access network device includes a transceiver 701, a processor 702, and a memory 703. .
  • the terminal device determines the second time unit of the second carrier according to the first time unit, the first parameter, and the first duration of the first carrier, where the first duration is the first time unit of the first carrier
  • the length of time or the length of time of the second time unit of the second carrier, the length of time of the first time unit is different from the time length of the second time unit, whereby the access network device or the terminal device may be at the first
  • the cross-carrier feedback is completed when the time unit lengths of the carrier and the second carrier are different, and the access network device and the terminal device can complete the transmission of the data and the feedback information when the time units of the first carrier and the second carrier are different, and the cross-carrier is improved.
  • the flexibility of feedback is completed when the time unit lengths of the carrier and the second carrier are different, and the access network device and the terminal device can complete the transmission of the data and the feedback information when the time units of the first carrier and the second carrier are different, and the cross-carrier is improved.
  • FIG. 8 The method of the embodiment of FIG. 3 will be specifically described below by taking FIG. 8 as an example.
  • Step 81 For downlink data transmission, the access network device sends the first data to the terminal device in the time unit n of the first carrier, and the terminal device also receives the first data from the access network device in the time unit n of the first carrier.
  • First data For uplink data transmission, the terminal device transmits the first data to the access network device in a time unit n of the first carrier, and the access network device also receives the first data from the terminal device in a time unit n of the first carrier.
  • the terminal device For side-by-side data transmission, the terminal device transmits the first data to other terminal devices in the time unit n of the first carrier, and the other terminal devices also receive the first data from the terminal device in the time unit n of the first carrier.
  • Step 82 The access network device determines a second time unit of the second carrier according to the time unit n, the first parameter k, and the first duration of the first carrier.
  • Step 83 The terminal device determines a second time unit of the second carrier according to the first time unit of the first carrier, the first parameter k, and the first duration.
  • the first parameter k is a preset parameter, or the first parameter k is a parameter included in the first control information and is sent by the access network device to the terminal device,
  • the first parameter k is 0 or a positive integer.
  • the first duration is the length of time of the time unit n of the first carrier or the length of time of the second time unit of the second carrier.
  • the time lengths of the plurality of time units n, n+1 to n+5 of the first carrier are equal, and the time lengths of the plurality of time units m to m+11 of the second carrier are equal, but the first carrier
  • the length of time of the plurality of time units n, n+1 to n+5 is different from the length of time of the plurality of time units m to m+11 of the second carrier.
  • the first duration may be different from a time length of the time unit n of the first carrier or a time length of a second time unit of the second carrier, eg, the time unit n of the first carrier is time
  • the first duration may be a minislot
  • the time unit m of the second carrier is a minislot
  • the first duration may be a symbol or the like.
  • the sequence of step 82 and step 83 is not limited.
  • the access network device or the terminal device determines that the termination time of the time unit n is backward and the first time length is the first time, and the first time length is the first parameter. k is multiplied by the first duration. For example, in FIG. 8, the first parameter k is 4, and the first duration is the time length of the time unit n of the first carrier. Therefore, the first time in FIG. 8 is the termination time of the time unit n of the first carrier is shifted backward 4 The time at which the time length of the first carrier time unit is located.
  • the access network device or the terminal device determines the second time unit of the second carrier according to the first moment.
  • the access network device or the terminal device determines that the time unit m+9 corresponding to the second carrier at the first moment is the second time unit.
  • the access network device or the terminal device determines that the time unit m+9 corresponding to the second carrier is the third time unit, and the access network device or the terminal device determines the next time unit m of m+9. +10 is the second time unit.
  • the terminal device sends feedback information to the access network device in the second time unit of the second carrier.
  • the access network device sends feedback information to the terminal device in the second time unit of the second carrier.
  • the terminal device sends feedback information to the access network device in the second time unit of the second carrier.
  • the feedback information may be received by the terminal device from the other terminal device.
  • the feedback information may be determined by the terminal device after receiving the first data from the other terminal device, to indicate whether the terminal device successfully receives the First data.
  • the second data between the access network device and the terminal device or between the terminal device is transmitted on a time unit n of the first carrier, and the access network device or the terminal device according to the The time unit n, the first parameter and the first duration determine the time unit m+9 of the second carrier as the transmission unit of the feedback information, and the second data between the access network device and the terminal device or between the terminal device is in the The time unit n+1 of a carrier is transmitted, and the access network device or the terminal device determines the time unit m+9 of the second carrier as the feedback information according to the time unit n+1, the second parameter, and the second duration.
  • the transmission unit, then the time unit m+9 of the second carrier will be used for the transmission unit of the feedback information of the first data and the second data.
  • the first parameter k is 4, and the first duration is the time length of the time unit m of the second carrier. Therefore, the first time in FIG. 9 is the end time of the time unit n of the first carrier backward. The time at which the length of time of the four second carrier time units is shifted.
  • the length of the time unit of the first carrier is equal to twice the length of the time unit of the second carrier, and therefore, the length of time of the four second carrier time units is equal to the length of the time unit of the two first carriers.
  • the access network device or the terminal device determines the second time unit of the second carrier according to the first moment.
  • the access network device or the terminal device determines that the time unit m+5 corresponding to the second carrier at the first moment is the second time unit.
  • the access network device or the terminal device determines that the time unit m+5 corresponding to the second carrier at the first moment is a third time unit, and the access network device or the terminal device determines the next time unit m of the m+5 +6 is the second time unit.
  • the terminal device sends feedback information to the access network device in the second time unit of the second carrier.
  • the access network device sends feedback information to the terminal device in the second time unit of the second carrier.
  • the terminal device sends feedback information to the access network device in the second time unit of the second carrier.
  • the feedback information may be received by the terminal device from the other terminal device.
  • the feedback information may be determined by the terminal device after receiving the first data from the other terminal device, to indicate whether the terminal device successfully receives the First data.
  • the access network device or the terminal device determines that the time unit after the second time unit of the second carrier is shifted backward by the first offset is used as a new The second time unit.
  • the first offset may be a specific length of time, or a number of subframes, timeslots, minislots, or symbols.
  • the control information may also be used to indicate the time of the first offset.
  • the unit or granularity, such as which one of a subframe, a time slot, a minislot, or a symbol, the first offset may also be indication information indicating the length of time of the offset.
  • the first offset may be a preset offset, and the first offset may also be included in control information sent by the access network device to the terminal device, for example, included in the downlink control information.
  • the access network device or the terminal device determines that m+9 of the second carrier is the second time unit, and the first offset is the time unit length of the two second carriers, Then, the access network device or the terminal device determines that m+11 of the second carrier is the second time unit.
  • the access network device or the terminal device offsets the first time back by the first offset to obtain a second time, and then the access network device or the terminal device determines according to the second time The second time corresponds to a second time unit on the second carrier.
  • the first offset may be determined by the access network device according to at least one of factors such as the number of terminal devices, the priority of data to be transmitted, the channel status, and the amount of data to be transmitted.
  • the access network device determines a second time unit of the second carrier for different terminal devices for data transmission according to different offsets, so that the second carrier can be more effectively utilized in the time domain to avoid resource waste. .
  • the time units n to n+5 of the first carrier are at least one of a subframe, a time slot, a minislot, and a symbol
  • the time units m to m+11 of the second carrier are subframes. At least one of a time slot, a minislot, and a symbol.
  • the access network device or the terminal device determines The time unit preceding the first moment is used as the second time unit, or the access network device or the terminal device determines the time unit following the first moment as the second time unit. For example, in FIG.
  • the first time is the end time of the time unit m+9 of the second carrier, that is, the first time is the start time of the time unit m+10 of the second carrier, then the access network device or The terminal device determines that the time unit m+9 or m+10 of the second carrier is the second time unit, and the second time unit is used for the access network device or the terminal device to receive or send the feedback information.
  • Step 84 The access network device transmits feedback information to the terminal device on the second time unit of the second carrier, where the feedback information is used to feed back the transmission status of the first data.
  • the access network device or the terminal device will be in the first carrier.
  • the time unit for transmitting data is backwardly shifted by k times to determine the second time unit of the second carrier is used as the time unit for feedback information transmission.
  • the access network device or the terminal device may determine the second time unit of the second carrier according to the time unit n, the first parameter k, and the first duration of the first carrier for feedback information transmission, that is, The transmission of data and feedback information between carriers having different time unit lengths.
  • the disclosed systems, devices, and methods may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.
  • the integrated unit if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium.
  • a computer readable storage medium A number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present application.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. .

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Abstract

La présente invention concerne un procédé de transmission de données de rétroaction, un dispositif de terminal, un dispositif de réseau d'accès et un système. Le procédé comprend les étapes suivantes : un dispositif de réseau d'accès transmet des premières données avec un dispositif de terminal sur une première unité de temps d'une première porteuse; le dispositif de réseau d'accès détermine une deuxième unité de temps d'une deuxième porteuse en fonction de la première unité de temps, un premier paramètre et une première durée, la durée de la première unité de temps étant différente de celle de la deuxième unité de temps; et le dispositif de réseau d'accès transmet des informations de rétroaction au dispositif de terminal sur la deuxième unité de temps de la deuxième porteuse, les informations de rétroaction étant utilisées pour retourner l'état de transmission des premières données. En conséquence, le dispositif de réseau d'accès et le dispositif de terminal peuvent transmettre les données et les informations de rétroaction lorsque la longueur de l'unité de temps de la première porteuse et la longueur de l'unité de temps de la deuxième porteuse sont différentes, de façon à améliorer la flexibilité de rétroaction inter-porteuses.
PCT/CN2018/079344 2017-03-24 2018-03-16 Procédé de transmission d'informations de rétroaction, dispositif de terminal et dispositif de réseau d'accès Ceased WO2018171530A1 (fr)

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