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WO2017113405A1 - 一种跨载波调度方法、反馈方法及装置 - Google Patents

一种跨载波调度方法、反馈方法及装置 Download PDF

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Publication number
WO2017113405A1
WO2017113405A1 PCT/CN2015/100334 CN2015100334W WO2017113405A1 WO 2017113405 A1 WO2017113405 A1 WO 2017113405A1 CN 2015100334 W CN2015100334 W CN 2015100334W WO 2017113405 A1 WO2017113405 A1 WO 2017113405A1
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WO
WIPO (PCT)
Prior art keywords
carrier
tti
subframe
indication information
resource block
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2015/100334
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English (en)
French (fr)
Inventor
戴明增
黄曲芳
张健
曾清海
郭轶
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
Original Assignee
Huawei Technologies Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to PCT/CN2015/100334 priority Critical patent/WO2017113405A1/zh
Priority to CN201580085359.6A priority patent/CN108370562B/zh
Priority to BR112018013536-4A priority patent/BR112018013536A2/zh
Priority to EP15912029.4A priority patent/EP3386254B1/en
Publication of WO2017113405A1 publication Critical patent/WO2017113405A1/zh
Priority to US16/023,989 priority patent/US20180324821A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A) or DMT
    • H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A) or DMT the frequencies being arranged in component carriers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • 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
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signalling, i.e. of overhead other than pilot signals
    • 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
    • H04L5/0091—Signalling for the administration of the divided path, e.g. signalling of configuration information
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0808—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal

Definitions

  • the present application relates to the field of wireless communications technologies, and in particular, to a cross-carrier scheduling method, a feedback method, and a device.
  • the Long Term Evolution (LTE) system has a maximum bandwidth of 20 Mhz.
  • LTE-A LTE-Advanced
  • the LTE-A system requires downlink 1 Gbps and uplink 500 Mbps. Obviously, the bandwidth of 20Mhz can no longer meet this demand.
  • the 3GPP 3rd Generation Partnership Project
  • CA Carrier Aggregation
  • the aggregated carrier includes a plurality of CCs (Component Carriers), and the plurality of CCs includes a primary carrier (PC) and one or more secondary carriers (SCs). Both the primary carrier and the secondary carrier can transmit service data and control information.
  • CCs Component Carriers
  • SCs secondary carriers
  • the base station needs to send scheduling signaling indicating each carrier.
  • the protocol supports two scheduling modes: carrier independent scheduling and cross-carrier scheduling.
  • the scheduling signaling of the SCell is allowed to be carried by the PDCCH (Physical Downlink Control Channel)/ePDCCH (Enhanced Physical Downlink Control Channel) of the PCC.
  • PDCCH Physical Downlink Control Channel
  • ePDCCH Enhanced Physical Downlink Control Channel
  • the existing CA is the same for the TTI (Transmission Time Interval).
  • the CC is implemented, that is, the TTIs of multiple aggregated CCs that the UE can use simultaneously are the same.
  • 3GPP introduces a shorter TTI, such as a TTI of 0.5ms, a TTI of 0.1ms, etc., so there is no clear solution to how these different TTI CCs are aggregated.
  • the embodiment of the present application provides a cross-carrier scheduling method, a feedback method, and a device, which are used to implement a carrier aggregation of CCs of different TTIs, so that the user equipment can accurately determine the location of the resource block in the carrier.
  • a first aspect of the embodiments of the present application provides a cross-carrier scheduling method, including:
  • the base station determines, according to the resource block scheduled for the user equipment, the transmission time interval TTI indication information, where the TTI indication information is used to indicate that the TTI where the subframe where the resource block is located is located in the scheduled carrier;
  • the base station sends the TTI indication information to the user equipment by using a scheduling carrier.
  • the base station when scheduling the resource block for the user equipment, indicates to the user equipment, by using the TTI indication information, the TTI where the subframe in which the resource block is located, so that the user equipment can accurately determine that the resource block is located in the carrier. position.
  • a TTI corresponding to the scheduled carrier is smaller than a TTI corresponding to the scheduled carrier.
  • the TTI indication information is used to indicate that a TTI where the subframe in which the resource block is located is located in a position of N TTIs, where the N
  • the TTI is a TTI of the scheduled carrier that is in the same time period as the primary TTI in the scheduling carrier, and the primary TTI is a subframe in the scheduling carrier that is simultaneously transmitted with the subframe in which the resource block is located.
  • N is a positive integer.
  • the TTI indication information is K TTI identifiers, and each TTI identifier indicates that one TTI is located in the N
  • K is a positive integer.
  • the base station directly indicates, by using the TTI identifier, the subframe where the resource block is located. TTI.
  • the corresponding relationship between the TTI identifier and the location of the TTI in the N TTIs is that the base station passes the radio resource Controlling RRC signaling to be sent to the user equipment.
  • the TTI indication information is a resource block number of the resource block.
  • the TTI in which the subframe in which the resource block is located may be indirectly indicated by the resource block number.
  • the TTI indication information is a carrier indication field CIF, where the TTI where the subframe in which the resource block is located is located in the scheduled The position in the carrier is the preset position.
  • the TTI in which the subframe in which the resource block is located is indicated by the existing CIF, so that the TTI in which the subframe in which the resource block is located can be indicated without increasing the system load.
  • the resource The block is configured to carry uplink signaling or uplink data sent by the user equipment.
  • the method further includes:
  • the base station sends the symbol indication information to the user equipment, where the symbol indication information is used to indicate that a symbol carrying the uplink signaling or uplink data is located in a subframe in which the resource block is located.
  • the base station may indicate the location of the symbol corresponding to the resource block while indicating the TTI where the subframe in which the resource block is located.
  • the scheduling carrier is a carrier located in an unlicensed frequency band, or the scheduled carrier is a carrier located in a licensed frequency band;
  • the scheduling carrier is a carrier located in an unlicensed frequency band, or the scheduling carrier is a carrier located in an authorized frequency band.
  • a second aspect of the embodiments of the present application provides a cross-carrier scheduling method, including:
  • the user equipment receives the transmission time interval TTI indication information sent by the scheduling carrier;
  • the user equipment determines, according to the TTI indication information, a location where a TTI in which the subframe in which the resource block scheduled by the base station is located is located in the scheduled carrier.
  • the user equipment may determine, by using the TTI indication information, a TTI in which the subframe in which the resource block scheduled by the base station is located, so that the location of the resource block can be accurately determined.
  • the TTI corresponding to the scheduled carrier is smaller than the TTI corresponding to the scheduled carrier.
  • the TTI indication information is used to indicate that a TTI where the subframe in which the resource block is located is located in a position in the N TTIs, where the N
  • the TTI is a TTI of the scheduled carrier that is in the same time period as the primary TTI in the scheduling carrier, and the primary TTI is a subframe in the scheduling carrier that is simultaneously transmitted with the subframe in which the resource block is located.
  • N is a positive integer.
  • the TTI indication information is K TTI identifiers, and each TTI identifier indicates that one TTI is located in the N
  • K is a positive integer.
  • the corresponding relationship between the TTI identifier and the location of the TTI in the N TTIs is that the base station passes the radio resource Controlling RRC signaling to be sent to the user equipment.
  • the TTI indication information is a resource block number of the resource block.
  • the TTI indication information is a carrier indication field CIF, where the TTI where the subframe in which the resource block is located is located in the scheduled The position in the carrier is the preset position.
  • the user equipment Sending uplink signaling or uplink data through the resource block.
  • the method further includes:
  • the user equipment receives the symbol indication information sent by the base station, where the symbol indication information is used to indicate that a symbol carrying the uplink signaling or uplink data is located in a subframe in which the resource block is located.
  • the method before the user equipment sends the uplink signaling or the uplink data by using the resource block, the method further includes:
  • the user equipment determines that the resource block is available according to the pre-session listening LBT.
  • the The scheduling carrier is a carrier located in an unlicensed frequency band, or the scheduled carrier is a carrier located in a licensed frequency band;
  • the scheduling carrier is a carrier located in an unlicensed frequency band, or the scheduling carrier is a carrier located in an authorized frequency band.
  • a third aspect of the embodiments of the present application provides a feedback method, including:
  • the user equipment receives N downlink data in N downlink subframes, where N is a positive integer;
  • the user equipment determines a target carrier for feeding back a response message of the N downlink data, and sends the response message to the base station by using the target carrier.
  • the user equipment schedules the reception status of the received N downlink data by using a response message, so that the base station can determine whether the data needs to be retransmitted.
  • the user equipment determines a target carrier that is used to feed back the response message of the N downlink data, including:
  • the available component carrier is a carrier where the physical uplink control channel PUCCH is located;
  • the available component carrier is the carrier where the PUSCH is located.
  • the response message includes N hybrid automatic repeat request HARQ acknowledgement messages and N subframe position indication information corresponding to the N HARQ acknowledgement messages;
  • the HARQ acknowledgment message is used to indicate the receiving of the downlink data carried in the downlink subframe indicated by the subframe position indication information corresponding to the HARQ acknowledgment message. status.
  • the location of each subframe is indicated by the subframe position indication information, so that the HARQ acknowledgment message of each downlink data is distinguished, so that the base station determines the reception state of each downlink data.
  • the subframe position indication information is a downlink subframe identifier.
  • the corresponding relationship between the downlink subframe identifier and the location where the downlink subframe is located in the carrier is the radio resource of the base station Controlling RRC signaling to be sent to the user equipment.
  • the sixth possible implementation manner of the third aspect The response message is obtained by logically ANDing the N HARQ acknowledgment messages corresponding to the N downlink data by the user equipment.
  • the receiving state of all downlink data is indicated by a response message, thereby reducing the load on the system.
  • a fourth aspect of the embodiments of the present application provides a feedback method, including:
  • the base station determines, according to the response message, a receiving state of the N downlink data received by the user equipment in the N downlink subframes, where N is a positive integer.
  • the response message includes N hybrid automatic repeat request HARQ acknowledgment messages and N subframe position indications corresponding to the N HARQ acknowledgment messages. information;
  • the HARQ acknowledgment message is used to indicate the receiving of the downlink data carried in the downlink subframe indicated by the subframe position indication information corresponding to the HARQ acknowledgment message. status.
  • the response message is obtained by performing a logical AND operation on the N HARQ acknowledgment messages corresponding to the N downlink data by the user equipment.
  • the method further includes:
  • the base station determines that the response message is a negative acknowledgement NACK, the base station resends the N downlink data to the user equipment.
  • a fifth aspect of the embodiments of the present application provides a carrier scheduling apparatus, including:
  • a determining unit configured to determine a transmission time interval TTI indication information according to a resource block scheduled for the user equipment, where the TTI indication information is used to indicate that a TTI where the subframe where the resource block is located is located in a scheduled carrier;
  • a sending unit configured to send the TTI indication information to the user equipment by using a scheduling carrier.
  • the TTI corresponding to the scheduled carrier is smaller than the TTI corresponding to the scheduled carrier.
  • the TTI indication information is used to indicate that a TTI where the subframe in which the resource block is located is located in a position of N TTIs, where the N
  • the TTI is a TTI of the scheduled carrier that is in the same time period as the primary TTI in the scheduling carrier, and the primary TTI is a subframe in the scheduling carrier that is simultaneously transmitted with the subframe in which the resource block is located.
  • N is a positive integer.
  • the TTI indication information is K TTI identifiers, and each TTI identifier indicates that one TTI is located in the N
  • K is a positive integer.
  • the corresponding relationship between the TTI identifier and the location of the TTI in the N TTIs is that the base station passes the radio resource Controlling RRC signaling to be sent to the user equipment.
  • the TTI indication information is a resource block number of the resource block.
  • the TTI indication information is a carrier indication field CIF, where the TTI where the subframe in which the resource block is located is located in the scheduled The position in the carrier is the preset position.
  • the resource The block is configured to carry uplink signaling or uplink data sent by the user equipment.
  • the sending unit is further configured to:
  • the scheduling carrier is a carrier located in an unlicensed frequency band, or the scheduled carrier is a carrier located in a licensed frequency band;
  • the scheduling carrier is a carrier located in an unlicensed frequency band, or the scheduling carrier is a carrier located in an authorized frequency band.
  • a sixth aspect of the embodiments of the present application provides a carrier scheduling apparatus, including:
  • a transceiver unit configured to receive transmission time interval TTI indication information sent by using a scheduling carrier
  • a determining unit configured to determine, according to the TTI indication information, a child where the resource block scheduled by the base station is located The TTI at which the frame is located is located at the location in the scheduled carrier.
  • the TTI corresponding to the scheduled carrier is smaller than the TTI corresponding to the scheduled carrier.
  • the TTI indication information is used to indicate that a TTI where the subframe in which the resource block is located is located in N TTIs, where the N
  • the TTI is a TTI of the scheduled carrier that is in the same time period as the primary TTI in the scheduling carrier, and the primary TTI is a subframe in the scheduling carrier that is simultaneously transmitted with the subframe in which the resource block is located.
  • N is a positive integer.
  • the TTI indication information is K TTI identifiers, and each TTI identifier indicates that one TTI is located in the N
  • K is a positive integer.
  • the corresponding relationship between the TTI identifier and the location of the TTI in the N TTIs is that the base station passes the radio resource Controlling RRC signaling to be sent to the user equipment.
  • the TTI indication information is a resource block number of the resource block.
  • the TTI indication information is a carrier indication field CIF, and is used to indicate that a TTI where the subframe in which the resource block is located is located in the scheduled
  • the position in the carrier is the preset position.
  • the transceiver unit is specifically configured to:
  • the transceiver unit is further configured to:
  • the symbol indication information sent by the base station is received, where the symbol indication information is used to indicate that a symbol carrying the uplink signaling or uplink data is located in a subframe in which the resource block is located.
  • the transceiver unit is further configured to:
  • the resource block is determined to be available based on the pre-session listening LBT.
  • the scheduling carrier is a carrier located in an unlicensed frequency band, or the scheduled carrier is a carrier located in a licensed frequency band;
  • the scheduling carrier is a carrier located in an unlicensed frequency band, or the scheduling carrier is a carrier located in an authorized frequency band.
  • a seventh aspect of the embodiments of the present application provides a feedback apparatus, including:
  • a transceiver unit configured to receive N downlink data on N downlink subframes, where N is a positive integer
  • a determining unit configured to determine a target carrier used to feed back the response message of the N downlink data
  • the transceiver unit is configured to send the response message to the base station by using the target carrier.
  • the determining unit is specifically configured to:
  • the determining unit is specifically configured to:
  • the available component carrier is a carrier where the physical uplink control channel PUCCH is located;
  • the available component carrier is the carrier where the PUSCH is located.
  • the response message includes N hybrid automatic repeat request HARQ acknowledgement messages and N subframe position indication information corresponding to the N HARQ acknowledgement messages;
  • the The HARQ acknowledgment message is used to indicate the receiving state of the downlink data carried in the downlink subframe indicated by the subframe position indication information corresponding to the HARQ acknowledgment message.
  • the subframe position indication information is a downlink subframe identifier.
  • the corresponding relationship between the downlink subframe identifier and the location where the downlink subframe is located in the carrier is the radio resource of the base station Controlling RRC signaling to be sent to the user equipment.
  • the sixth possible implementation manner of the seventh aspect The response message is obtained by logically ANDing the N HARQ acknowledgment messages corresponding to the N downlink data by the user equipment.
  • An eighth aspect of the embodiments of the present application provides a feedback apparatus, including:
  • a transceiver unit configured to receive, by using a target carrier, a response message sent by the user equipment
  • a determining unit configured to determine, according to the response message, a receiving state of the N downlink data received by the user equipment on the N downlink subframes, where N is a positive integer.
  • the response message includes N hybrid automatic repeat request HARQ acknowledgment messages and N subframe position indications corresponding to the N HARQ acknowledgment messages. information;
  • the HARQ acknowledgment message is used to indicate the receiving of the downlink data carried in the downlink subframe indicated by the subframe position indication information corresponding to the HARQ acknowledgment message. status.
  • the response message is obtained by performing a logical AND operation on the N HARQ acknowledgment messages corresponding to the N downlink data by the user equipment.
  • the transceiver unit is further configured to:
  • a ninth aspect of the embodiments of the present application provides a carrier scheduling apparatus, including:
  • a processor configured to determine a transmission time interval TTI indication information according to a resource block scheduled for the user equipment, where the TTI indication information is used to indicate that a TTI where the subframe where the resource block is located is located in a scheduled carrier;
  • a transceiver configured to send the TTI indication information to the user equipment by using a scheduling carrier.
  • the TTI corresponding to the scheduled carrier is smaller than the TTI corresponding to the scheduled carrier.
  • the TTI indication information is used to indicate that a TTI where the subframe where the resource block is located is located in a position of N TTIs, where the N
  • the TTI is a TTI of the scheduled carrier that is in the same time period as the primary TTI in the scheduling carrier, and the primary TTI is a subframe in the scheduling carrier that is simultaneously transmitted with the subframe in which the resource block is located.
  • N is a positive integer.
  • the TTI indication information is K TTI identifiers, and each TTI identifier indicates that one TTI is located in the N
  • K is a positive integer.
  • the corresponding relationship between the TTI identifier and the location of the TTI in the N TTIs is that the base station passes the radio resource Controlling RRC signaling to be sent to the user equipment.
  • the TTI indication information is a resource block number of the resource block.
  • the TTI indication information is a carrier indication field CIF, where the TTI where the subframe in which the resource block is located is located in the scheduled The position in the carrier is the preset position.
  • the resource The block is configured to carry uplink signaling or uplink data sent by the user equipment.
  • the transceiver is further configured to:
  • the The scheduling carrier is a carrier located in an unlicensed frequency band, or the scheduled carrier is a carrier located in a licensed frequency band;
  • the scheduling carrier is a carrier located in an unlicensed frequency band, or the scheduling carrier is a carrier located in an authorized frequency band.
  • a tenth aspect of the embodiments of the present application provides a carrier scheduling apparatus, including:
  • a transceiver configured to receive a transmission time interval TTI indication information sent by using a scheduling carrier
  • a processor configured to determine, according to the TTI indication information, a location where a TTI in which the subframe in which the resource block scheduled by the base station is located is located in the scheduled carrier.
  • the TTI corresponding to the scheduled carrier is smaller than the TTI corresponding to the scheduled carrier.
  • the TTI indication information is used to indicate that a TTI where the subframe in which the resource block is located is located in a position of N TTIs, where the N
  • the TTI is a TTI of the scheduled carrier that is in the same time period as the primary TTI in the scheduling carrier, and the primary TTI is a subframe in the scheduling carrier that is simultaneously transmitted with the subframe in which the resource block is located.
  • N is a positive integer.
  • the TTI indication information is K TTI identifiers, and each TTI identifier indicates that one TTI is located in the N
  • the position in the TTI, K is a positive integer.
  • the corresponding relationship between the TTI identifier and the location of the TTI in the N TTIs is that the base station passes the radio resource Controlling RRC signaling to be sent to the user equipment.
  • the TTI indication information is a resource block number of the resource block.
  • the TTI indication information is a carrier indication field CIF, and is used to indicate that a TTI where the subframe in which the resource block is located is located in the scheduled
  • the position in the carrier is the preset position.
  • the transceiver is further configured to:
  • the transceiver is further configured to:
  • the symbol indication information sent by the base station is received, where the symbol indication information is used to indicate that a symbol carrying the uplink signaling or uplink data is located in a subframe in which the resource block is located.
  • the transceiver is further configured to:
  • the resource block is determined to be available based on the pre-session listening LBT.
  • the The scheduling carrier is a carrier located in an unlicensed frequency band, or the scheduled carrier is a carrier located in a licensed frequency band;
  • the scheduling carrier is a carrier located in an unlicensed frequency band, or the scheduling carrier is a carrier located in an authorized frequency band.
  • An eleventh aspect of the present application provides a feedback apparatus, including:
  • a transceiver configured to receive N downlink data on N downlink subframes, where N is a positive integer
  • a processor configured to determine a target carrier used to feed back the response message of the N downlink data, and send the response message to the base station by using the target carrier.
  • the processor is specifically configured to:
  • the processor is specifically configured to:
  • the available component carrier is a carrier where the physical uplink control channel PUCCH is located;
  • the available component carrier is the carrier where the PUSCH is located.
  • the response message includes N hybrid automatic repeat request HARQ acknowledgement messages and N subframe position indication information corresponding to the N HARQ acknowledgement messages;
  • the HARQ acknowledgment message is used to indicate the receiving of the downlink data carried in the downlink subframe indicated by the subframe position indication information corresponding to the HARQ acknowledgment message. status.
  • the subframe position indication information is a downlink subframe identifier.
  • the corresponding relationship between the downlink subframe identifier and the location where the downlink subframe is located in the carrier is Radio resource control RRC signaling is sent to the user equipment.
  • the response message is obtained by performing a logical AND operation on the N HARQ acknowledgment messages corresponding to the N downlink data by the user equipment.
  • a twelfth aspect of the embodiments of the present application provides a feedback apparatus, including:
  • a transceiver configured to receive, by using a target carrier, a response message sent by the user equipment
  • a processor configured to determine, according to the response message, that the user equipment is connected to N downlink subframes
  • the received state of the received N downlink data, N is a positive integer.
  • the response message includes N hybrid automatic repeat request HARQ acknowledgement messages and N subframes corresponding to the N HARQ acknowledgement messages.
  • Location indication information N hybrid automatic repeat request HARQ acknowledgement messages and N subframes corresponding to the N HARQ acknowledgement messages.
  • the HARQ acknowledgment message is used to indicate the receiving of the downlink data carried in the downlink subframe indicated by the subframe position indication information corresponding to the HARQ acknowledgment message. status.
  • the response message is obtained by logically ANDing the N HARQ acknowledgment messages corresponding to the N downlink data by the user equipment .
  • the transceiver is further configured to:
  • the N downlink data is resent to the user equipment.
  • FIG. 1 is a schematic diagram of cross-carrier scheduling in the prior art
  • FIG. 2 is a schematic diagram of cross-carrier scheduling according to an embodiment of the present disclosure
  • FIG. 3 is a schematic flowchart of a cross-carrier scheduling method according to an embodiment of the present disclosure
  • FIG. 4 is a schematic diagram of cross-carrier scheduling according to an embodiment of the present application.
  • FIG. 5 is a schematic diagram of cross-carrier scheduling according to an embodiment of the present application.
  • FIG. 6 is a schematic diagram of cross-carrier scheduling according to an embodiment of the present disclosure.
  • FIG. 7 is a schematic flowchart of a feedback method according to an embodiment of the present application.
  • FIG. 8 is a schematic structural diagram of a cross-carrier scheduling apparatus according to an embodiment of the present disclosure.
  • FIG. 9 is a schematic structural diagram of a cross-carrier scheduling apparatus according to an embodiment of the present disclosure.
  • FIG. 10 is a schematic structural diagram of a feedback apparatus according to an embodiment of the present application.
  • FIG. 11 is a schematic structural diagram of a feedback apparatus according to an embodiment of the present application.
  • FIG. 12 is a schematic structural diagram of a cross-carrier scheduling apparatus according to an embodiment of the present disclosure.
  • FIG. 13 is a schematic structural diagram of a cross-carrier scheduling apparatus according to an embodiment of the present disclosure.
  • FIG. 14 is a schematic structural diagram of a feedback apparatus according to an embodiment of the present application.
  • FIG. 15 is a schematic structural diagram of a feedback apparatus according to an embodiment of the present application.
  • the embodiments of the present application are applicable to LTE, and other networks capable of supporting carrier aggregation technologies, such as a Universal Carrier Telecommunications Syste Terrestrial Radio Access Network (UTRAN). Supports the Downlink Dual Carrier (Enhanced Data Rate for GSM Evolution Radio Access Network, GERAN, etc.).
  • UTRAN Universal Carrier Telecommunications Syste Terrestrial Radio Access Network
  • GERAN Enhanced Data Rate for GSM Evolution Radio Access Network
  • the term "user equipment” includes but is not limited to a mobile station, a fixed or mobile subscriber unit, a pager, a cellular phone, a personal digital assistant (PDA), a computer or any other type of wireless device.
  • User equipment working in the environment.
  • base station includes, but is not limited to, a base station, a node, a station controller, an Access Point (AP), or any other type of interface device capable of operating in a wireless environment.
  • the term “member carrier” specifically refers to a carrier capable of performing CA, and may be a carrier located in an authorized frequency band or a carrier located in an unlicensed frequency band.
  • the embodiments of the present application can be used in various CA scenarios, and are not limited to intra-station CA, inter-station CA, heterogeneous network CA, and the like.
  • cross-carrier scheduling is allowed in a CA, that is, PDSCH (Physical Downlink) of other serving cells is scheduled by using a PDCCH/ePDCCH on one cell. Shared Channel, physical downlink shared channel) or PUSCH (Physical Uplink Shared Channel).
  • FIG. 1 it is a schematic diagram of cross-carrier scheduling in the prior art.
  • the resource blocks on CC2 and CC3 can be scheduled through the PDCCH of CC1. Since the TTIs of the primary carrier and the secondary carrier are the same, the CIF (Carrier Indicator Field) indication in the DCI (Downlink Control Information) carried in the primary carrier PDCCH/ePDCCH is scheduled during the cross-carrier scheduling.
  • CIF Carrier Indicator Field
  • the carrier on which the resource block is located can determine the TTI in which the subframe in which the resource block is scheduled is located, because the TTI in which the scheduled resource block in the secondary carrier is located is necessarily the same as the scheduled resource block in the primary carrier.
  • the TTI is in the same time period. If the TTI corresponding to the primary carrier is greater than the TTI corresponding to the secondary carrier, one TTI in the primary carrier may correspond to multiple TTIs in the secondary carrier, and the CIF can only indicate the carrier where the scheduled resource block is located, thereby causing the user equipment to After determining the carrier in which the scheduled resource block is located according to the CIF, it is impossible to determine the TTI in which the subframe in which the scheduled resource block is located is located.
  • the TTI in CC1 in Figure 2 is equal to the TTI in 2 CC2, which are TTI 1 and TTI 2, respectively.
  • the base station can only indicate that the carrier where the scheduled resource block is located is CC2 through the CIF, and cannot indicate that the subframe in which the scheduled resource block is located is located in the TTI of the CC2. 1 is also TTI 2.
  • the lengths of the TTIs and the subframes in the same carrier are the same, that is, the length of one subframe is the length of one TTI.
  • TTI is a concept of scheduling level.
  • Base stations and user equipments arrange data transmission in units of TTI.
  • Sub-frames are a physical layer concept.
  • the physical layer arranges baseband and radio frequency processing behavior in units of subframes. In today's LTE systems, the two are equivalent in length. However, in actual operation, the two concepts are not required to be equivalent.
  • a TTI may include multiple subframes.
  • the MAC layer schedules transmissions in units of TTIs, but the physical layer processes in units of subframes. In this case, in the embodiment of the present application, only the TTI in which the subframe where the resource block is located is indicated.
  • the embodiment of the present application provides a cross-carrier scheduling method, which is described in detail below.
  • FIG. 3 the embodiment of the present application provides a cross-carrier scheduling method flow.
  • Schematic diagram including:
  • Step 301 The base station determines TTI indication information according to the resource block scheduled for the user equipment, where the TTI indication information is used to indicate that the TTI where the subframe where the resource block is located is located in the scheduled carrier.
  • the scheduling carrier may refer to a carrier that schedules resource blocks in other carriers (eg, secondary carriers) for the user equipment.
  • the scheduled carrier may refer to a carrier in which a resource block in a carrier is scheduled by another carrier (for example, a primary carrier), and may be a secondary carrier.
  • the resource block scheduled by the base station for the user equipment may be an uplink resource block or a downlink resource block.
  • the scheduled carrier does not limit the frequency range, and may be a carrier located in an unlicensed frequency band, and the scheduled carrier may also be a carrier located in the licensed frequency band.
  • the licensed frequency band here refers to the frequency band used by the access network (such as the above-mentioned base station) to communicate with the user equipment when the country, region or organization grants the telecommunication operator the communication service such as user equipment mobile and Internet access, such as various A frequency band used by wireless access systems such as LTE, UTRAN, and GERAN.
  • Unlicensed frequency bands refer to frequency bands other than the above-mentioned licensed frequency bands. Commonly used are frequency bands used in wireless local area networks, broadcast television signals, and satellite communications using wireless fidelity (Wi-Fi) technology.
  • the embodiment of the present application may be applicable to the TTI corresponding to the scheduled carrier being smaller than the TTI corresponding to the scheduling carrier, the TTI corresponding to the scheduled carrier being equal to the TTI corresponding to the scheduling carrier, and the TTI corresponding to the scheduled carrier being greater than the TTI corresponding to the scheduling carrier.
  • the TTI corresponding to the scheduled carrier is smaller than the TTI corresponding to the scheduling carrier.
  • the base station may determine the TTI indication information, indicating that the TTI where the subframe in which the resource block scheduled by the user equipment is located is located in the scheduled carrier.
  • the TTI indication information that is determined by the base station may be used to indicate that the TTI where the subframe in which the resource block is located is located in the N TTIs, where the N TTIs may be in the scheduled carrier.
  • the TTI in which the subframe in the scheduled carrier that is simultaneously transmitted with the subframe in which the resource block is located is N, and is a positive integer.
  • the TTI indication information may be K TTI identifiers, where each TTI identifier indicates a location where the TTI is located in the N TTIs, and K is a positive integer.
  • the correspondence between the TTI identifier and the location where the TTI is located in the N TTIs may be pre-agreed between the base station and the user equipment. Where K is less than or equal to N.
  • the base station may send, by using RRC (Radio Resource Control) signaling, the correspondence between the TTI identifier and the location of the TTI in the N TTIs to the user equipment.
  • RRC Radio Resource Control
  • the base station may also send the TTI identifier to the user equipment in the corresponding relationship between the TTI identifier and the location of the TTI in the N TTIs, which is not limited in this embodiment of the present application.
  • N is 2 at this time.
  • the resource block scheduled by the base station for the user equipment is located in TTI 1 of CC2.
  • the TTI identifier of TTI 1 in CC2 may be 0, and the TTI identifier of TTI 2 in CC2 may be 1.
  • the TTI indication information may be 0.
  • the user equipment may determine that the resource block is located in TTI 1 of CC2.
  • the TTI identifier of the TTI 1 may also be 1
  • the TTI identifier of the TTI 2 may also be 0.
  • the TTI identifier only needs to be able to uniquely identify each TTI.
  • the specific value of the TTI identifier in the embodiment of the present application is not limited.
  • the base station can ensure that the data of the user equipment is only possible to be sent in a part of the TTIs of the N TTIs, so the TTI indication information for the user equipment is The TTI identifier only needs to point to the TTI available to the user equipment. For example, a 1 ms TTI of the scheduled carrier corresponds to 10 0.1 ms TTIs in the scheduled carrier.
  • the TTI identifiers of the 10 0.1 ms TTIs may be 0 to 9, respectively, but for a user equipment, the data of the user equipment may only appear in the TTI identifier is 0 and the TTI identifier is 4
  • the TTI flag is 0 to indicate the first TTI
  • the TTI flag is 1 to indicate the 5th TTI, that is, the TTI identified by the foregoing TTI is 4.
  • the TTI indication information may also be a resource block number of the resource block, thereby indicating a location of a TTI in which the subframe in which the resource block is located. Wherein, one subframe includes multiple resource blocks, and the number set for each resource block may be used as the resource block number of each resource block. For example, in conjunction with Figure 2, The resource block number of the resource block included in TTI 1 in CC2 is 0 to 49, and the resource block number of the resource block included in TTI 2 is 50 to 99.
  • the TTI indication information may be a resource block number of the resource block.
  • the user equipment determines, according to the TTI indication information, the resource of the resource block that the base station schedules for the resource block.
  • the block number is 21 to 40, it can be determined that the resource block is located in TTI 1 of CC2.
  • the user equipment determines, according to the TTI indication information, the resource block of the resource block whose base station is the resource block number of 79 to 99. Then, it can be determined that the resource block is located in TTI 2 of CC2.
  • This method of identification essentially implicitly represents the TTI in which the scheduled data is located.
  • the TTI indication information may also be a CIF.
  • the TTI indication information is the CIF
  • the location where the TTI where the subframe in which the resource block is scheduled by the base station is located in the scheduled carrier is the preset position.
  • the base station may send the preset location to the user equipment by using RRC signaling.
  • the base station may also send the preset location to the user equipment while transmitting the TTI indication information, which is not limited in this embodiment of the present application.
  • the preset position is the first TTI corresponding to the primary TTI in the scheduled carrier in the scheduled carrier, that is, TTI 1.
  • the user equipment may determine that the TTI in which the subframe in which the base station is scheduled for the user equipment is located in the first TTI corresponding to the primary TTI in the scheduling carrier.
  • the resource block in the downlink carrier may be scheduled for the user equipment by using the downlink carrier, or the resource block in the uplink carrier may be scheduled for the user equipment by using the downlink carrier.
  • FIG. 4 it is a schematic diagram of cross-carrier scheduling provided in the embodiment of the present application.
  • the TTI in CC1 is equal to the TTI in 2 CC2.
  • CC1 is the downlink carrier and
  • CC2 is the uplink carrier.
  • the base station may indicate, by using the TTI indication information, the location where the TTI in which the subframe in which the resource block scheduled on the CC2 is located is located in CC2.
  • FIG. 4 it is a schematic diagram of cross-carrier scheduling provided in the embodiment of the present application.
  • the TTI in CC1 is equal to the TTI in 2 CC2.
  • CC1 is the downlink carrier
  • CC2 is the uplink carrier.
  • the base station may indicate, by using the TTI indication information, the location where the TTI in which the subframe in which the resource block scheduled on the CC2 is located is located in CC2.
  • the TTI indication information is indicated by 0, if the scheduled resource block is located in the n+9 subframe in CC2, TTI The indication information is indicated by 1. It should be noted that, in FIG. 4, it is assumed that the scheduling information of the CC 1 and the scheduled resource block in the CC 2 are different in time from each other by 4 CC 1 . In actual operation, the time difference may be any other value. Make a limit.
  • the base station may schedule the user equipment to send uplink data or all possible uplink signaling in the resource block, for example, the base station schedules the user equipment in the resource block.
  • Aperiodic CSI Channel State Information
  • a non-periodic SRS Sounding Reference Signal
  • the base station may send the symbol indication information to the user equipment, and the symbol indicating that the uplink signaling or the uplink data is carried is located in the resource, while the user equipment is configured to send the uplink data or the uplink signaling in the resource block.
  • the symbol indication information may be information such as a position identifier of the symbol.
  • symbol in the embodiment of the present application may refer to an OFDM symbol when it is described by taking an LTE system as an example.
  • Step 302 The base station sends the TTI indication information to the user equipment by using a scheduling carrier.
  • the scheduling carrier may be a carrier located in an unlicensed frequency band, or the scheduling carrier may also be a carrier located in an authorized frequency band. It should be noted that, in the embodiment of the present application, the scheduling carrier may refer to a primary carrier, and the scheduled carrier may refer to a secondary carrier.
  • the base station may send the TTI indication information to the user equipment by using the DCI carried in the PDCCH/ePDCCH of the scheduling carrier.
  • Step 303 The user equipment receives TTI indication information that is sent by using a scheduling carrier.
  • Step 304 The user equipment determines, according to the TTI indication information, a location where a TTI in which the subframe in which the resource block scheduled by the base station is located is located in the scheduled carrier.
  • the user equipment may blindly check the PDCCH/ePDCCH of the scheduling carrier, and acquire the CIF in the DCI carried by the PDCCH/ePDCCH, thereby determining the scheduled carrier. After determining the scheduled carrier, the user equipment determines, according to the TTI indication information, a location where the resource block scheduled by the base station for the user equipment is located in the scheduled carrier, so that data may be transmitted or received according to the resource block.
  • the user equipment may determine K TTIs in which the subframes in which the resource blocks are located in the N TTIs according to the K TTI identifiers, where the N TTIs are And a TTI in the scheduling carrier that is in the same time period as the primary TTI in the scheduling carrier, where the primary TTI is a TTI in which the subframe in the scheduled carrier that is simultaneously transmitted with the subframe in which the resource block is located.
  • the simultaneous transmission of two subframes may mean that there is an intersection of TTIs corresponding to each of the two subframes in time.
  • a subframe corresponding to TTI 1 in CC1 and a subframe corresponding to TTI 1 in CC2 and a subframe corresponding to TTI 2 in CC2 are simultaneously transmitted subframes.
  • the TTI identifier of TTI 1 in CC2 may be 0, and the TTI identifier of TTI2 in CC2 may be 1.
  • the user equipment may determine that the resource block is located in the TTI 1 of the CC2; after determining that the received TTI indication information is 1, the user equipment may determine that the resource block is located in the TTI 2 of the CC2; After determining that the received TTI indication information is 01, the user equipment may determine that the resource block is located in TTI 1 of CC2 and TTI2 of CC2.
  • the base station can ensure that the data of the user equipment is only possible to be sent in a part of the TTIs of the N TTIs, so the TTI indication information for the user equipment is
  • the TTI identifier only needs to point to the TTI available to the user equipment. For example, a 1 ms TTI of the scheduled carrier corresponds to 10 0.1 ms TTIs in the scheduled carrier.
  • the data of the user equipment may only appear in the first TTI and the fifth TTI.
  • the TTI flag is 0 to indicate the first TTI, and the TTI flag is 1 to indicate the 5th TTI.
  • the user equipment may determine that the resource block is located in the TTI 1 of the CC2. After determining that the received TTI indication information is 1, the user equipment may determine that the resource block is located in the fifth of the CC2. In a TTI.
  • the user equipment may determine, according to the received resource block number, the location of the TTI where the subframe in which the resource block is located.
  • the resource block number of the resource block included in TTI 1 in CC2 is 0 to 49, and the resource block number of the resource block included in TTI 2 is 50 to 99.
  • the user equipment determines, according to the TTI indication information, the resource block whose resource block number is 21 to 40, the resource block of the scheduled resource block is determined by the base station, This resource block is located in TTI 1 of CC2.
  • the user equipment determines, according to the TTI indication information, that the resource block of the resource block whose base station is the resource block number of the scheduled resource block is 79 to 99, it can be determined that the resource block is located in the TTI 2 of the CC2.
  • the user equipment may determine, according to the preset location, a location where the TTI where the subframe in which the resource block scheduled by the base station is located is located in the scheduled carrier.
  • the preset position is the first TTI corresponding to the primary TTI in the scheduled carrier in the scheduled carrier, that is, TTI 1.
  • the user equipment may determine that the TTI in which the subframe in which the base station is scheduled for the user equipment is located in the first TTI corresponding to the primary TTI in the scheduling carrier.
  • the user equipment may send uplink signaling or uplink data by using the resource block.
  • the user equipment may send uplink signaling such as aperiodic CSI and aperiodic SRS in the resource block.
  • the user equipment may further determine, according to the symbol indication information sent by the base station, a symbol that carries the uplink signaling or uplink data in a subframe in which the resource block is located.
  • the base station indicates to the user equipment that the subframes in which the resource blocks are located through the TTI indication information are n+8 and n+9, and also indicates, by using the symbol indication information, the user equipment to carry the uplink signaling or uplink data.
  • the symbol is located in the last symbol of subframe n+8 and the second to last symbol of subframe n+9.
  • the user equipment may also need to determine whether the resource block is determined according to an LBT (listen before talk). Available, and when determining that the resource block is available, transmitting uplink signaling or uplink data through the resource block.
  • LBT listen before talk
  • CC1 is a downlink carrier in a licensed band
  • CC2 is an uplink carrier in an unlicensed band.
  • the base station indicates to the user equipment that the subframe in which the resource block 1 is located is n+8 through the TTI indication information, and the subframe in which the resource block 2 is located is n+9.
  • the uplink data or the uplink signaling may be sent in the resource block 1 and the resource block 2; if the user equipment determines that the resource block 1 is unavailable according to the LBT, the resource block 2 Available, The uplink data or the uplink signaling may be sent in the resource block 2; if the user equipment determines that the resource block 1 is unavailable according to the LBT and the resource block 2 is unavailable, the uplink data or the uplink signaling is not sent in the resource block 1 and the resource block 2 . It is worth noting that, here, it is assumed that the scheduled resource block has only one chance to appear in the scheduled carrier.
  • the base station can pre-configure a window in which the scheduled resource block can appear multiple times.
  • the user equipment may perform LBT in chronological order. If successful, use the scheduled resource block to send uplink data or uplink signaling. If not, try LBT again before the next scheduled resource block position in the window appears. Until the LBT is successful, or until the end of the window.
  • the HARQ (Hybrid Automatic Repeat reQuest) technology is adopted to improve the reliability of the system and reduce the error rate of packet transmission.
  • the user equipment decodes the data in the PDSCH (Physical Downlink Shared Channel) in the soft buffer corresponding to the specified HARQ process according to the downlink resource allocation information on the PDCCH/ePDCCH, and generates an uplink HARQ according to the decoding result.
  • the acknowledgment message is sent to the base station on the PUCCH (Physical Uplink Control Channel) or the PUSCH.
  • the HARQ acknowledgment message may be an ACK (Acknowledge Acknowledgement)/NACK (Negative Acknowledge).
  • the base station decides whether to perform HARQ retransmission or new data according to the received HARQ acknowledgment message.
  • a HARQ acknowledgment message and CSI of multiple carriers can be fed back on one carrier, but since the TTIs of the carriers are the same and the carriers are completely synchronized, the mapping on the time domain resources is performed. Relationships are one-to-one correspondence. If the TTI of the primary carrier and the secondary carrier are different when the carrier is aggregated, the mapping relationship on the time domain resources may not be one-to-one.
  • FIG. 6 a schematic diagram of cross-carrier scheduling according to an embodiment of the present invention is provided.
  • the primary carrier is CC1 and the secondary carrier is CC2.
  • the resource block scheduled by the base station for the user equipment by using the primary carrier is located in the subframe n and the subframe n+1 of the CC2.
  • the user equipment needs to simultaneously feed back through the subframe n and the subframe in the subframe m+2 of the CC1.
  • the base station cannot distinguish whether the received feedback is feedback for downlink data of subframe n or feedback for downlink data of subframe n+1.
  • the embodiment of the present application provides a feedback method, which is described in detail below.
  • the embodiment of the present application provides a schematic flowchart of a feedback method, including:
  • Step 701 The user equipment receives N downlink data in N downlink subframes, where N is a positive integer.
  • Step 702 The user equipment determines a target carrier for feeding back a response message of the N downlink data, and sends the response message to the base station by using the target carrier.
  • the N downlink subframes may be N downlink subframes in the secondary carrier.
  • the user equipment may generate a response message according to the receiving status of the N downlink data, where the receiving status may be correctly received or not received correctly.
  • the response message generated by the user equipment may include N HARQ acknowledgment messages and N subframe position indication information.
  • Each HARQ acknowledgment message corresponds to one subframe position indication information.
  • the HARQ acknowledgment message is used to indicate the receiving of the downlink data carried in the downlink subframe indicated by the subframe position indication information corresponding to the HARQ acknowledgment message. status.
  • Each of the HARQ acknowledgment messages may be an ACK or a NACK, and may be determined according to a receiving state of the downlink data corresponding to the HARQ acknowledgment message.
  • the subframe position indication information may be a downlink subframe identifier, and the downlink subframe identifier indicates that the subframe corresponding to the downlink subframe identifier is located in a carrier where the subframe is located.
  • the downlink subframe identifier from subframe n to subframe n+9 in CC2 may be 0-9.
  • the downlink subframe identifier that is sent may be 1.
  • the base station can ensure that the data of the user equipment is only possible to be sent in a partial subframe of the carrier, so the subframe position indication information for the user equipment is The subframe identifier only needs to point to the subframe available to the user equipment.
  • one 1 ms TTI of the primary carrier corresponds to ten 0.1 ms TTIs in the secondary carrier, that is, the primary carrier
  • the transmission time length of one subframe in the wave is equal to the transmission time length of 10 subframes in the secondary carrier.
  • User equipment data may only appear in the 1st subframe and the 5th subframe.
  • the TTI flag is 0 to indicate the 1st subframe, and the TTI flag is 1 to indicate the 5th subframe.
  • the correspondence between the downlink subframe identifier and the location where the downlink subframe is located in the carrier may be sent by the base station to the user equipment by using RRC signaling.
  • the base station may also send the downlink data to the user equipment.
  • the subframe position indication information may also be a resource block number of a resource block carrying downlink data.
  • the resource block number of the resource block included in the subframe n in CC2 is 0 to 49
  • the resource block number of the resource block included in the subframe n+1 is 50 to 99.
  • the user equipment receives downlink data on resource blocks numbered 21 to 40 in subframe n.
  • the subframe position indication information determined by the user equipment may be the resource block number of the resource block that receives the downlink data, respectively.
  • the response message may be obtained by performing logical AND operations on the N HARQ acknowledgment messages corresponding to the N downlink data by the user equipment.
  • the response message is ACK; when any one of the N downlink data is not correctly received, the response message is NACK, and the base station needs to retransmit all N downlinks. data.
  • the user equipment correctly receives the downlink data in the subframe n, and correctly receives the downlink data in the subframe n+1, the generated response message is an ACK, and the base station determines that the response message is an ACK after receiving the response message. Then, it is determined that the user equipment correctly receives the downlink data in both the subframe n and the subframe n+1.
  • the user equipment correctly receives the downlink data in the subframe n, and does not correctly receive the downlink data in the subframe n+1, the generated response message is NACK, and after receiving the response message, the base station determines that the response message is NACK, and determines the user. The device did not receive the downlink data correctly.
  • the user equipment does not correctly receive the downlink data in the subframe n, and correctly receives the downlink data in the subframe n+1, and the generated response message is a NACK.
  • the base station determines that the response message is NACK, and determines the user.
  • the device does not correctly receive the downlink data.
  • the user equipment does not correctly receive the downlink data in subframe n. If the downlink data is not correctly received in subframe n+1, the generated response message is NACK.
  • the base station determines that the response message is NACK, and determines that the user equipment does not receive the response correctly. Downstream data.
  • the primary carrier when determining, by the user equipment, the target carrier that sends the response message, the primary carrier may be determined as the target carrier, or the secondary carrier may be determined as the target carrier.
  • the user equipment may determine the shortest component carrier of the TTI from the available component carriers, and determine the component carrier with the smallest carrier number identifier in the shortest member carrier of the TTI as the response message for feeding back the N downlink data.
  • Target carrier may be determined from the available component carriers, and determine the component carrier with the smallest carrier number identifier in the shortest member carrier of the TTI as the response message for feeding back the N downlink data.
  • the carrier that transmits the PUCCH is determined to be an available component carrier; if the PUSCH is determined to be transmitted, the carrier that transmits the PUSCH is determined to be an available component carrier.
  • Step 703 The base station receives the response message sent by the user equipment by using the target carrier.
  • Step 704 The base station determines, according to the response message, a receiving state of the N downlink data received by the user equipment in the N downlink subframes, where N is a positive integer.
  • step 704 the base station determines to retransmit or send new downlink data according to the received response message.
  • the base station When the response message includes the N HARQ acknowledgment messages and the N subframe position indication information, if the base station receives the HARQ acknowledgment message as a NACK, the base station retransmits the downlink subframe indicated by the subframe position indication information corresponding to the HARQ acknowledgment message. Downstream data carried.
  • the response message is obtained by logically ANDing the N HARQ acknowledgment messages corresponding to the N downlink data, and the base station sends the response message to the user equipment if it determines that the response message is a NACK.
  • the N downlink data If the base station determines that the response message is an ACK, the base station may send new downlink data to the user equipment.
  • the scheduling carrier and the scheduled carrier use different lengths of TTI, and work in a scenario of cross-carrier scheduling.
  • the above conditions can also be extended.
  • the same cell can work with different lengths of TTIs in different time periods.
  • a TTI of 1 ms is used, and a scheduling indication is sent to notify the UE of the downlink.
  • the resource block location of the data is within the T2-T3 time period, or the resource block location of the uplink data of the user equipment is notified within the T2-T3 time period.
  • a TTI of 0.1 ms is used.
  • the embodiment of the present application may also be used.
  • the method given indicates which of the 0.1 ms TTIs are specified in the range of T2-T3.
  • an embodiment of the present invention provides a carrier scheduling apparatus for performing the foregoing method flow.
  • FIG. 8 is a schematic structural diagram of a carrier scheduling apparatus according to an embodiment of the present application.
  • the device includes:
  • a determining unit 801 configured to determine a transmission time interval TTI indication information according to a resource block scheduled for the user equipment, where the TTI indication information is used to indicate that a TTI where the subframe where the resource block is located is located in a scheduled carrier;
  • the sending unit 802 is configured to send the TTI indication information to the user equipment by using a scheduling carrier.
  • the TTI corresponding to the scheduled carrier is smaller than the TTI corresponding to the scheduled carrier.
  • the TTI indication information is used to indicate that a TTI where the subframe in which the resource block is located is located in N TTIs, where the N TTIs are in the scheduled carrier and in the scheduling carrier.
  • the primary TTI is in the TTI of the same time period, and the primary TTI is a TTI in which the subframe in the scheduled carrier that is simultaneously transmitted with the subframe in which the resource block is located, and N is a positive integer.
  • the TTI indication information is K TTI identifiers, and each TTI identifier indicates a location where the TTI is located in the N TTIs, where K is a positive integer.
  • the correspondence between the TTI identifier and the location of the TTI in the N TTIs is that the base station sends the RRC signaling to the user equipment by using radio resource control.
  • the TTI indication information is a resource block number of the resource block.
  • the TTI indication information is a carrier indication field CIF, and is used to indicate that a location where the TTI in which the resource block is located is located in the scheduled carrier is a preset location.
  • the resource block is configured to carry uplink signaling or uplink data sent by the user equipment.
  • the sending unit 802 is further configured to:
  • the scheduled carrier is a carrier located in an unlicensed frequency band, or the The carrier is a carrier located in the licensed band;
  • the scheduling carrier is a carrier located in an unlicensed frequency band, or the scheduling carrier is a carrier located in an authorized frequency band.
  • an embodiment of the present invention provides a carrier scheduling apparatus for performing the foregoing method flow.
  • FIG. 9 is a schematic structural diagram of a carrier scheduling apparatus according to an embodiment of the present application.
  • the device includes:
  • the transceiver unit 901 is configured to receive transmission time interval TTI indication information that is sent by using a scheduling carrier.
  • the determining unit 902 is configured to determine, according to the TTI indication information, a location where a TTI in which the subframe in which the resource block scheduled by the base station is located is located in the scheduled carrier.
  • the TTI corresponding to the scheduled carrier is smaller than the TTI corresponding to the scheduled carrier.
  • the TTI indication information is used to indicate that a TTI where the subframe in which the resource block is located is located in N TTIs, where the N TTIs are in the scheduled carrier and in the scheduling carrier.
  • the primary TTI is in the TTI of the same time period, and the primary TTI is a TTI in which the subframe in the scheduled carrier that is simultaneously transmitted with the subframe in which the resource block is located, and N is a positive integer.
  • the TTI indication information is K TTI identifiers, and each TTI identifier indicates a location where the TTI is located in the N TTIs, where K is a positive integer.
  • the correspondence between the TTI identifier and the location of the TTI in the N TTIs is that the base station sends the RRC signaling to the user equipment by using radio resource control.
  • the TTI indication information is a resource block number of the resource block.
  • the TTI indication information is a carrier indication field CIF, and is used to indicate that a location where the TTI in which the resource block is located is located in the scheduled carrier is a preset location.
  • the transceiver unit 901 is specifically configured to:
  • the transceiver unit 901 is further configured to:
  • the symbol of the uplink signaling or the uplink data is located at a position in the subframe in which the resource block is located.
  • the transceiver unit 901 is further configured to:
  • the resource block is determined to be available based on the pre-session listening LBT.
  • the scheduled carrier is a carrier located in an unlicensed frequency band, or the scheduled carrier is a carrier located in a licensed frequency band;
  • the scheduling carrier is a carrier located in an unlicensed frequency band, or the scheduling carrier is a carrier located in an authorized frequency band.
  • a feedback device is provided in the embodiment of the present invention for performing the above method flow.
  • FIG. 10 is a schematic structural diagram of a feedback apparatus according to an embodiment of the present application.
  • the apparatus includes:
  • the transceiver unit 1001 is configured to receive N downlink data in N downlink subframes, where N is a positive integer;
  • a determining unit 1002 configured to determine a target carrier used to feed back the response message of the N downlink data
  • the transceiver unit 1001 is configured to send the response message to the base station by using the target carrier.
  • the determining unit 1002 is specifically configured to:
  • the determining unit 1002 is specifically configured to:
  • the available component carrier is a carrier where the physical uplink control channel PUCCH is located;
  • the available component carrier is the carrier where the PUSCH is located.
  • the response message includes N hybrid automatic repeat request HARQ acknowledgement messages and N subframe position indication information corresponding to the N HARQ acknowledgement messages;
  • the HARQ acknowledgment message is used to indicate a subframe position indication information corresponding to the HARQ acknowledgment message.
  • the subframe position indication information is a downlink subframe identifier.
  • the correspondence between the downlink subframe identifier and the location where the downlink subframe is located in the carrier is that the base station sends the RRC signaling to the user equipment by using radio resource control.
  • the response message is obtained by performing a logical AND operation on the N HARQ acknowledgment messages corresponding to the N downlink data by the user equipment.
  • a feedback device is provided in the embodiment of the present invention for performing the above method flow.
  • FIG. 11 is a schematic structural diagram of a feedback apparatus provided by an embodiment of the present application.
  • the apparatus includes:
  • the transceiver unit 1101 is configured to receive, by using a target carrier, a response message sent by the user equipment;
  • the determining unit 1102 is configured to determine, according to the response message, a receiving state of the N downlink data received by the user equipment on the N downlink subframes, where N is a positive integer.
  • the response message includes N hybrid automatic repeat request HARQ acknowledgement messages and N subframe position indication information corresponding to the N HARQ acknowledgement messages;
  • the HARQ acknowledgment message is used to indicate the receiving of the downlink data carried in the downlink subframe indicated by the subframe position indication information corresponding to the HARQ acknowledgment message. status.
  • the response message is obtained by performing logical AND operations on the N HARQ acknowledgment messages corresponding to the N downlink data by the user equipment.
  • the transceiver unit 1101 is further configured to:
  • the N downlink data is resent to the user equipment.
  • an embodiment of the present invention provides a carrier scheduling apparatus for performing the foregoing method flow.
  • FIG. 12 is a schematic structural diagram of a carrier scheduling apparatus according to an embodiment of the present application.
  • the apparatus includes a processor 1201, a memory 1202, and a transceiver 1203.
  • the processor 1201 is configured to read a program stored in the memory 1202 and execute the following process:
  • TTI indication information is used to indicate that a TTI where the subframe where the resource block is located is located in a scheduled carrier
  • the transceiver 1203 is configured to send the TTI indication information to the user equipment by using a scheduling carrier.
  • the TTI corresponding to the scheduled carrier is smaller than the TTI corresponding to the scheduled carrier.
  • the TTI indication information is used to indicate that a TTI where the subframe in which the resource block is located is located in N TTIs, where the N TTIs are in the scheduled carrier and in the scheduling carrier.
  • the primary TTI is in the TTI of the same time period, and the primary TTI is a TTI in which the subframe in the scheduled carrier that is simultaneously transmitted with the subframe in which the resource block is located, and N is a positive integer.
  • the TTI indication information is K TTI identifiers, and each TTI identifier indicates a location where the TTI is located in the N TTIs, where K is a positive integer.
  • the correspondence between the TTI identifier and the location of the TTI in the N TTIs is that the base station sends the RRC signaling to the user equipment by using radio resource control.
  • the TTI indication information is a resource block number of the resource block.
  • the TTI indication information is a carrier indication field CIF, and is used to indicate that a location where the TTI in which the resource block is located is located in the scheduled carrier is a preset location.
  • the resource block is configured to carry uplink signaling or uplink data sent by the user equipment.
  • the transceiver 1203 is further configured to:
  • the scheduled carrier is a carrier located in an unlicensed frequency band, or the scheduled carrier is a carrier located in a licensed frequency band;
  • the scheduling carrier is a carrier located in an unlicensed frequency band, or the scheduling carrier is a carrier located in an authorized frequency band.
  • the bus interface may also be included in FIG. 12, and the bus interface may include any number of interconnected buses and bridges, specifically one or more processors represented by the processor and memory represented by the memory.
  • the various circuits are linked together.
  • the bus interface can also link various other circuits, such as peripherals, voltage regulators, and power management circuits, as is known in the art and, therefore, will not be further described herein.
  • the bus interface provides an interface.
  • the transceiver provides a unit for communicating with various other devices on a transmission medium.
  • the processor is responsible for managing the bus architecture and the usual processing, and the memory can store the data that the processor uses when performing operations.
  • an embodiment of the present invention provides a carrier scheduling apparatus for performing the foregoing method flow.
  • FIG. 13 is a schematic structural diagram of a carrier scheduling apparatus according to an embodiment of the present application.
  • the apparatus includes a processor 1301, a memory 1302, and a transceiver 1303.
  • the transceiver 1303 is configured to receive transmission time interval TTI indication information that is sent by using a scheduling carrier.
  • the processor 1301 is configured to read a program stored in the memory 1302 and execute the following process:
  • the TTI corresponding to the scheduled carrier is smaller than the TTI corresponding to the scheduled carrier.
  • the TTI indication information is used to indicate that a TTI where the subframe in which the resource block is located is located in N TTIs, where the N TTIs are in the scheduled carrier and in the scheduling carrier.
  • the primary TTI is in the TTI of the same time period, and the primary TTI is a TTI in which the subframe in the scheduled carrier that is simultaneously transmitted with the subframe in which the resource block is located, and N is a positive integer.
  • the TTI indication information is K TTI identifiers, and each TTI identifier indicates a location where the TTI is located in the N TTIs, where K is a positive integer.
  • the correspondence between the TTI identifier and the location of the TTI in the N TTIs is that the base station sends the RRC signaling to the user equipment by using radio resource control.
  • the TTI indication information is a resource block number of the resource block.
  • the TTI indication information is a carrier indication field CIF, and is used to indicate that a location where the TTI in which the resource block is located is located in the scheduled carrier is a preset location.
  • the transceiver 1303 is further configured to:
  • the transceiver 1303 is further configured to:
  • the symbol indication information sent by the base station is received, where the symbol indication information is used to indicate that a symbol carrying the uplink signaling or uplink data is located in a subframe in which the resource block is located.
  • the transceiver 1303 is further configured to:
  • the resource block is determined to be available based on the pre-session listening LBT.
  • the scheduled carrier is a carrier located in an unlicensed frequency band, or the scheduled carrier is a carrier located in a licensed frequency band;
  • the scheduling carrier is a carrier located in an unlicensed frequency band, or the scheduling carrier is a carrier located in an authorized frequency band.
  • bus interface may also be included in FIG. 13, and the bus interface may include any number of interconnected buses and bridges, specifically linked by one or more processors represented by the processor and various circuits of the memory represented by the memory.
  • the bus interface can also link various other circuits, such as peripherals, voltage regulators, and power management circuits, as is known in the art and, therefore, will not be further described herein.
  • the bus interface provides an interface.
  • the transceiver provides a unit for communicating with various other devices on a transmission medium.
  • the processor is responsible for managing the bus architecture and the usual processing, and the memory can store the data that the processor uses when performing operations.
  • a feedback device is provided in the embodiment of the present invention for performing the above method flow.
  • FIG. 14 is a schematic structural diagram of a feedback apparatus according to an embodiment of the present application.
  • the apparatus includes a processor 1401, a memory 1402, and a transceiver 1403.
  • the transceiver 1403 is configured to receive N downlink data in N downlink subframes, where N is a positive integer;
  • the processor 1401 is configured to read a program stored in the memory 1402 and execute the following process:
  • the processor 1401 is specifically configured to:
  • the processor 1401 is specifically configured to:
  • the available component carrier is a carrier where the physical uplink control channel PUCCH is located;
  • the available component carrier is the carrier where the PUSCH is located.
  • the response message includes N hybrid automatic repeat request HARQ acknowledgement messages and N subframe position indication information corresponding to the N HARQ acknowledgement messages;
  • the HARQ acknowledgment message is used to indicate the receiving of the downlink data carried in the downlink subframe indicated by the subframe position indication information corresponding to the HARQ acknowledgment message. status.
  • the subframe position indication information is a downlink subframe identifier.
  • the correspondence between the downlink subframe identifier and the location where the downlink subframe is located in the carrier is that the base station sends the RRC signaling to the user equipment by using radio resource control.
  • the response message is obtained by performing a logical AND operation on the N HARQ acknowledgment messages corresponding to the N downlink data by the user equipment.
  • the bus interface may also be included in FIG. 14, and the bus interface may include any number of interconnected buses and bridges, specifically linked by one or more processors represented by the processor and various circuits of the memory represented by the memory.
  • the bus interface can also link various other circuits, such as peripherals, voltage regulators, and power management circuits, as is known in the art and, therefore, will not be further described herein.
  • the bus interface provides an interface.
  • the transceiver provides a unit for communicating with various other devices on a transmission medium.
  • the processor is responsible for managing the bus architecture and the usual processing, and the memory can store the data that the processor uses when performing operations.
  • a feedback device is provided in the embodiment of the present invention for performing the above method flow.
  • FIG. 15 is a schematic structural diagram of a feedback apparatus provided by an embodiment of the present application.
  • the apparatus includes: a processor 1501, a memory 1502, and a transceiver 1503.
  • the transceiver 1503 is configured to receive, by using a target carrier, a response message sent by the user equipment.
  • the processor 1501 is configured to read a program stored in the memory 1502 and execute the following process:
  • the response message includes N hybrid automatic repeat request HARQ acknowledgement messages and N subframe position indication information corresponding to the N HARQ acknowledgement messages;
  • the HARQ acknowledgment message is used to indicate the receiving of the downlink data carried in the downlink subframe indicated by the subframe position indication information corresponding to the HARQ acknowledgment message. status.
  • the response message is obtained by performing logical AND operations on the N HARQ acknowledgment messages corresponding to the N downlink data by the user equipment.
  • the transceiver 1503 is further configured to:
  • the N downlink data is resent to the user equipment.
  • the bus interface may also be included in FIG. 15, and the bus interface may include any number of interconnected buses and bridges, specifically linked by one or more processors represented by the processor and various circuits of the memory represented by the memory.
  • the bus interface can also link various other circuits, such as peripherals, voltage regulators, and power management circuits, as is known in the art and, therefore, will not be further described herein.
  • the bus interface provides an interface.
  • the transceiver provides a unit for communicating with various other devices on a transmission medium.
  • the processor is responsible for managing the bus architecture and the usual processing, and the memory can store the data that the processor uses when performing operations.
  • embodiments of the present application can be provided as a method, or a 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, CD-ROM, optical storage, etc.) including computer usable program code.
  • the present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (system), and computer program products according to embodiments of the present application. It should be understood that the flow chart can be implemented by computer program instructions And/or a combination of the processes and/or blocks in the block diagrams, and the flowcharts and/or blocks in the flowcharts. These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device. A device that implements the functions specified in one or more processes and/or block diagrams of one or more blocks of the flowchart.
  • 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 instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • a device implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of a 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

一种跨载波调度方法、反馈方法及装置，包括，用户设备接收调度载波发送的TTI指示信息；所述用户设备根据所述TTI指示信息确定所述基站调度的资源块所在的子帧所处的TTI位于被调度载波中的位置。

Description

一种跨载波调度方法、反馈方法及装置 技术领域
本申请涉及无线通信技术领域，尤其涉及一种跨载波调度方法、反馈方法及装置。
背景技术
长期演进(Long Term Evolution，简称LTE)系统，最大带宽为20Mhz。对于增强长期演进(LTE-Advanced，简称LTE-A)系统，LTE-A系统的峰值速率比LTE系统有了很大的提高，LTE-A系统要求达到下行1Gbps，上行500Mbps。显然，20Mhz的带宽已经无法满足这种需求。为了让LTE-A系统能够符合要求，3GPP(the 3rd Generation Partnership Project，第三代合作伙伴项目)在版本10阶段定义了载波聚合(Carrier Aggregation，简称CA)技术，即将在同一个频段内或者不同频段间的多个载波聚合在一起形成更大带宽，在需要时同时为用户设备(user equipment，简称UE)服务，以提供所需的速率。通过CA，可以最大化资源利用率、有效利用离散的频谱资源。
聚合的载波包含多个CC(Component Carrier，成员载波)，多个CC中包含一个主载波(Primary Carrier，简称PC)和一个或者多个辅载波(Secondary Carrier，简称SC)组成。主载波和辅载波上均可以发送业务数据和控制信息。
采用载波聚合，需要基站发送指示各个载波的调度信令。目前协议支持各载波独立调度和跨载波调度两种调度方式。对于跨载波调度，允许SCell的调度信令通过PCC的PDCCH(Physical Downlink Control Channel，物理下行链路控制信道)/ePDCCH(Enhanced Physical Downlink Control Channel，增强型物理下行链路控制信道)承载。通过配置跨载波调度，使得在同一个子帧，单个CC上可能需要同时传输针对同一个UE的多个不同CC的调度信令，从而可以提高调度信令成功传输的概率，充分利用载波上的PDCCH资源。
现有的CA是针对TTI(Transmission Time Interval，传输时间间隔)相同的 CC来实现的，也就是说，UE能同时使用的多个聚合的CC的TTI都是相同的。现在，3GPP引入了更短的TTI，比如0.5ms的TTI、0.1ms的TTI等，所以这些TTI不同的CC如何进行聚合，还没有一个明确的解决方法。
发明内容
本申请实施例提供一种跨载波调度方法、反馈方法及装置，用以实现不同TTI的CC进行载波聚合时，使得用户设备能够准确确定资源块位于载波中的位置。
本申请实施例第一方面提供一种跨载波调度方法，包括：
基站根据为用户设备调度的资源块确定传输时间间隔TTI指示信息，所述TTI指示信息用于指示所述资源块所在的子帧所处的TTI位于被调度载波中的位置；
所述基站通过调度载波向所述用户设备发送所述TTI指示信息。
本申请实施例中，基站在为用户设备调度资源块的同时，通过TTI指示信息向用户设备指示出资源块所在的子帧所处的TTI，从而使得用户设备能够准确确定资源块位于载波中的位置。
结合第一方面，在第一方面的第一种可能的实现方式中，所述被调度载波对应的TTI小于所述调度载波对应的TTI。
结合第一方面，在第一方面的第二种可能的实现方式中，所述TTI指示信息用于指示所述资源块所在的子帧所处的TTI位于N个TTI中的位置，所述N个TTI为所述被调度载波中与所述调度载波中的主TTI处于同一时间段的TTI，所述主TTI为所述调度载波中与所述资源块所在的子帧同时传输的子帧所处的TTI，N为正整数。
结合第一方面的第二种可能的实现方式，在第一方面的第三种可能的实现方式中，所述TTI指示信息为K个TTI标识，每个TTI标识指示出一个TTI位于所述N个TTI中的位置，K为正整数。
上述方法中，基站通过TTI标识可以直接指示出资源块所在的子帧所处 的TTI。
结合第一方面的第三种可能的实现方式，在第一方面的第四种可能的实现方式中，TTI标识与TTI位于所述N个TTI中的位置的对应关系为所述基站通过无线资源控制RRC信令发送给所述用户设备的。
结合第一方面，在第一方面的第五种可能的实现方式中，所述TTI指示信息为所述资源块的资源块编号。
上述方法中，可以通过资源块编号间接指示出资源块所在的子帧所处的TTI。
结合第一方面，在第一方面的第六种可能的实现方式中，所述TTI指示信息为载波指示域CIF，用于指示所述资源块所在的子帧所处的TTI位于所述被调度载波中的位置为预设位置。
上述方法中，利用已有的CIF指示出资源块所在的子帧所处的TTI，从而在不增加系统负荷的同时，能够指示出资源块所在的子帧所处的TTI。
结合第一方面以及第一方面的第一种可能的实现方式至第六种可能的实现方式中任一种可能的实现方式，在第一方面的第七种可能的实现方式中，所述资源块用于承载所述用户设备发送的上行信令或上行数据。
结合第一方面的第七种可能的实现方式，在第一方面的第八种可能的实现方式中，该方法还包括：
所述基站向所述用户设备发送符号指示信息，所述符号指示信息用于指示承载所述上行信令或上行数据的符号位于所述资源块所在的子帧中的位置。
上述方法中，基站在指示出资源块所在的子帧所处的TTI的同时，还可以指示出与资源块对应的符号的位置。
结合第一方面以及第一方面的第一种可能的实现方式至第八种可能的实现方式中任一种可能的实现方式，在第一方面的第九种可能的实现方式中，所述被调度载波为位于非授权频段中的载波，或者，所述被调度载波为位于授权频段中的载波；
所述调度载波为位于非授权频段中的载波，或者，所述调度载波为位于授权频段中的载波。
本申请实施例第二方面提供一种跨载波调度方法，包括：
用户设备接收通过调度载波发送的传输时间间隔TTI指示信息；
所述用户设备根据所述TTI指示信息确定基站调度的资源块所在的子帧所处的TTI位于被调度载波中的位置。
本申请实施例中，用户设备可以通过TTI指示信息确定基站调度的资源块所在的子帧所处的TTI，从而使得能够准确确定资源块的位置。
结合第二方面，在第二方面的第一种可能的实现方式中，所述被调度载波对应的TTI小于所述调度载波对应的TTI。
结合第二方面，在第二方面的第二种可能的实现方式中，所述TTI指示信息用于指示所述资源块所在的子帧所处的TTI位于N个TTI中的位置，所述N个TTI为所述被调度载波中与所述调度载波中的主TTI处于同一时间段的TTI，所述主TTI为所述调度载波中与所述资源块所在的子帧同时传输的子帧所处的TTI，N为正整数。
结合第二方面的第二种可能的实现方式，在第二方面的第三种可能的实现方式中，所述TTI指示信息为K个TTI标识，每个TTI标识指示出一个TTI位于所述N个TTI中的位置，K为正整数。
结合第二方面的第三种可能的实现方式，在第二方面的第四种可能的实现方式中，TTI标识与TTI位于所述N个TTI中的位置的对应关系为所述基站通过无线资源控制RRC信令发送给所述用户设备的。
结合第二方面的第四种可能的实现方式，在第二方面的第五种可能的实现方式中，所述TTI指示信息为所述资源块的资源块编号。
结合第二方面，在第二方面的第六种可能的实现方式中，所述TTI指示信息为载波指示域CIF，用于指示所述资源块所在的子帧所处的TTI位于所述被调度载波中的位置为预设位置。
结合第二方面，在第二方面的第七种可能的实现方式中，所述用户设备 通过所述资源块发送上行信令或上行数据。
结合第二方面的第七种可能的实现方式，在第二方面的第八种可能的实现方式中，该方法还包括：
所述用户设备接收所述基站发送的符号指示信息，所述符号指示信息用于指示承载所述上行信令或上行数据的符号位于所述资源块所在的子帧中的位置。
结合第二方面的第七种可能的实现方式，在第二方面的第九种可能的实现方式中，所述用户设备通过所述资源块发送上行信令或上行数据之前，还包括：
所述用户设备根据对话前监听LBT确定所述资源块可用。
结合第二方面以及第二方面的第一种可能的实现方式至第九种可能的实现方式中任一种可能的实现方式，在第二方面的第十种可能的实现方式中，所述被调度载波为位于非授权频段中的载波，或者，所述被调度载波为位于授权频段中的载波；
所述调度载波为位于非授权频段中的载波，或者，所述调度载波为位于授权频段中的载波。
本申请实施例第三方面提供一种反馈方法，包括：
用户设备在N个下行子帧上接收N个下行数据，N为正整数；
所述用户设备确定用于反馈所述N个下行数据的应答消息的目标载波，并通过所述目标载波向基站发送所述应答消息。
本申请实施例中，用户设备调度通过应答消息指示出接收到的N个下行数据的接收状态，从而使得基站能够确定是否需要重新传输数据。
结合第三方面，在第三方面的第一种可能的实现方式中，所述用户设备确定用于反馈所述N个下行数据的应答消息的目标载波，包括：
所述用户设备从可用的成员载波中确定传输时间间隔TTI最短的成员载波，并将所述TTI最短的成员载波中载波编号标识最小的成员载波确定为用于反馈所述N个下行数据的应答消息的目标载波。
结合第三方面，在第三方面的第二种可能的实现方式中，若确定不传输物理上行共享信道PUSCH，则所述可用的成员载波为物理上行控制信道PUCCH所在的载波；
若确定传输PUSCH，则所述可用的成员载波为所述PUSCH所在的载波。
结合第三方面以及第三方面的第一种可能的实现方式至第三方面的第二种可能的实现方式中的任一种可能的实现方式，在第三方面的第三种可能的实现方式中，所述应答消息包括N个混合自动重传请求HARQ确认消息和与所述N个HARQ确认消息对应的N个子帧位置指示信息；
针对所述N个HARQ确认消息中的任意一个HARQ确认消息，所述HARQ确认消息用于指示与所述HARQ确认消息对应的子帧位置指示信息所指示的下行子帧中承载的下行数据的接收状态。
上述方法中，通过子帧位置指示信息指示出每个子帧的位置，从而使得每个下行数据的的HARQ确认消息得以区分，使得基站确定每个下行数据的接收状态。
结合第三方面的第三种可能的实现方式，在第三方面的第四种可能的实现方式中，所述子帧位置指示信息为下行子帧标识。
结合第三方面的第四种可能的实现方式，在第三方面的第五种可能的实现方式中，下行子帧标识与下行子帧位于载波中的位置的对应关系为所述基站通过无线资源控制RRC信令发送给所述用户设备的。
结合第三方面以及第三方面的第一种可能的实现方式至第三方面的第五种可能的实现方式中的任一种可能的实现方式，在第三方面的第六种可能的实现方式中，所述应答消息为所述用户设备将所述N个下行数据对应的N个HARQ确认消息进行逻辑与运算得到的。
上述方法中，通过一个应答消息指示出所有下行数据的接收状态，从而减少了系统的负荷。
本申请实施例第四方面提供一种反馈方法，包括：
基站通过目标载波接收用户设备发送的应答消息；
所述基站根据所述应答消息确定所述用户设备在N个下行子帧上接收到的N个下行数据的接收状态，N为正整数。
结合第四方面，在第四方面的第一种可能的实现方式中，所述应答消息包括N个混合自动重传请求HARQ确认消息和与所述N个HARQ确认消息对应的N个子帧位置指示信息；
针对所述N个HARQ确认消息中的任意一个HARQ确认消息，所述HARQ确认消息用于指示与所述HARQ确认消息对应的子帧位置指示信息所指示的下行子帧中承载的下行数据的接收状态。
结合第四方面，在第四方面的第二种可能的实现方式中，所述应答消息为所述用户设备将所述N个下行数据对应的N个HARQ确认消息进行逻辑与运算得到的。
结合第四方面的第二种可能的实现方式，在第四方面的第三种可能的实现方式中，该方法还包括：
所述基站若确定所述应答消息为否定应答NACK，则重新向所述用户设备发送所述N个下行数据。
本申请实施例第五方面提供一种载波调度装置，包括：
确定单元，用于根据为用户设备调度的资源块确定传输时间间隔TTI指示信息，所述TTI指示信息用于指示所述资源块所在的子帧所处的TTI位于被调度载波中的位置；
发送单元，用于通过调度载波向所述用户设备发送所述TTI指示信息。
结合第五方面，在第五方面的第一种可能的实现方式中，所述被调度载波对应的TTI小于所述调度载波对应的TTI。
结合第五方面，在第五方面的第二种可能的实现方式中，所述TTI指示信息用于指示所述资源块所在的子帧所处的TTI位于N个TTI中的位置，所述N个TTI为所述被调度载波中与所述调度载波中的主TTI处于同一时间段的TTI，所述主TTI为所述调度载波中与所述资源块所在的子帧同时传输的子帧所处的TTI，N为正整数。
结合第五方面的第二种可能的实现方式，在第五方面的第三种可能的实现方式中，所述TTI指示信息为K个TTI标识，每个TTI标识指示出一个TTI位于所述N个TTI中的位置，K为正整数。
结合第五方面的第三种可能的实现方式，在第五方面的第四种可能的实现方式中，TTI标识与TTI位于所述N个TTI中的位置的对应关系为所述基站通过无线资源控制RRC信令发送给所述用户设备的。
结合第五方面，在第五方面的第五种可能的实现方式中，所述TTI指示信息为所述资源块的资源块编号。
结合第五方面，在第五方面的第六种可能的实现方式中，所述TTI指示信息为载波指示域CIF，用于指示所述资源块所在的子帧所处的TTI位于所述被调度载波中的位置为预设位置。
结合第五方面以及第五方面的第一种可能的实现方式至第六种可能的实现方式中任一种可能的实现方式，在第五方面的第七种可能的实现方式中，所述资源块用于承载所述用户设备发送的上行信令或上行数据。
结合第五方面的第七种可能的实现方式，在第五方面的第八种可能的实现方式中，所述发送单元还用于：
向所述用户设备发送符号指示信息，所述符号指示信息用于指示承载所述上行信令或上行数据的符号位于所述资源块所在的子帧中的位置。
结合第五方面以及第五方面的第一种可能的实现方式至第八种可能的实现方式中任一种可能的实现方式，在第五方面的第九种可能的实现方式中，所述被调度载波为位于非授权频段中的载波，或者，所述被调度载波为位于授权频段中的载波；
所述调度载波为位于非授权频段中的载波，或者，所述调度载波为位于授权频段中的载波。
本申请实施例第六方面提供一种载波调度装置，包括：
收发单元，用于接收通过调度载波发送的传输时间间隔TTI指示信息；
确定单元，用于根据所述TTI指示信息确定基站调度的资源块所在的子 帧所处的TTI位于被调度载波中的位置。
结合第六方面，在第六方面的第一种可能的实现方式中，所述被调度载波对应的TTI小于所述调度载波对应的TTI。
结合第六方面，在第六方面的第二种可能的实现方式中，所述TTI指示信息用于指示所述资源块所在的子帧所处的TTI位于N个TTI中的位置，所述N个TTI为所述被调度载波中与所述调度载波中的主TTI处于同一时间段的TTI，所述主TTI为所述调度载波中与所述资源块所在的子帧同时传输的子帧所处的TTI，N为正整数。
结合第六方面的第二种可能的实现方式，在第六方面的第三种可能的实现方式中，所述TTI指示信息为K个TTI标识，每个TTI标识指示出一个TTI位于所述N个TTI中的位置，K为正整数。
结合第六方面的第三种可能的实现方式，在第六方面的第四种可能的实现方式中，TTI标识与TTI位于所述N个TTI中的位置的对应关系为所述基站通过无线资源控制RRC信令发送给所述用户设备的。
结合第六方面的第四种可能的实现方式，在第六方面的第五种可能的实现方式中，所述TTI指示信息为所述资源块的资源块编号。
结合第六方面，在第六方面的第六种可能的实现方式中，所述TTI指示信息为载波指示域CIF，用于指示所述资源块所在的子帧所处的TTI位于所述被调度载波中的位置为预设位置。
结合第六方面，在第六方面的第七种可能的实现方式中，所述收发单元具体用于：
通过所述资源块发送上行信令或上行数据。
结合第六方面的第七种可能的实现方式，在第六方面的第八种可能的实现方式中，所述收发单元还用于：
接收所述基站发送的符号指示信息，所述符号指示信息用于指示承载所述上行信令或上行数据的符号位于所述资源块所在的子帧中的位置。
结合第六方面的第七种可能的实现方式，在第六方面的第九种可能的实 现方式中，所述收发单元还用于：
根据对话前监听LBT确定所述资源块可用。
结合第六方面以及第六方面的第一种可能的实现方式至第九种可能的实现方式中任一种可能的实现方式，在第六方面的第十种可能的实现方式中，所述被调度载波为位于非授权频段中的载波，或者，所述被调度载波为位于授权频段中的载波；
所述调度载波为位于非授权频段中的载波，或者，所述调度载波为位于授权频段中的载波。
本申请实施例第七方面提供一种反馈装置，包括：
收发单元，用于在N个下行子帧上接收N个下行数据，N为正整数；
确定单元，用于确定用于反馈所述N个下行数据的应答消息的目标载波；
所述收发单元，用于通过所述目标载波向基站发送所述应答消息。
结合第七方面，在第七方面的第一种可能的实现方式中，所述确定单元具体用于：
从可用的成员载波中确定传输时间间隔TTI最短的成员载波，并将所述TTI最短的成员载波中载波编号标识最小的成员载波确定为用于反馈所述N个下行数据的应答消息的目标载波。
结合第七方面，在第七方面的第二种可能的实现方式中，所述确定单元具体用于：
若确定不传输物理上行共享信道PUSCH，则所述可用的成员载波为物理上行控制信道PUCCH所在的载波；
若确定传输PUSCH，则所述可用的成员载波为所述PUSCH所在的载波。
结合第七方面以及第七方面的第一种可能的实现方式至第七方面的第二种可能的实现方式中的任一种可能的实现方式，在第七方面的第三种可能的实现方式中，所述应答消息包括N个混合自动重传请求HARQ确认消息和与所述N个HARQ确认消息对应的N个子帧位置指示信息；
针对所述N个HARQ确认消息中的任意一个HARQ确认消息，所述 HARQ确认消息用于指示与所述HARQ确认消息对应的子帧位置指示信息所指示的下行子帧中承载的下行数据的接收状态。
结合第七方面的第三种可能的实现方式，在第七方面的第四种可能的实现方式中，所述子帧位置指示信息为下行子帧标识。
结合第七方面的第四种可能的实现方式，在第七方面的第五种可能的实现方式中，下行子帧标识与下行子帧位于载波中的位置的对应关系为所述基站通过无线资源控制RRC信令发送给所述用户设备的。
结合第七方面以及第七方面的第一种可能的实现方式至第七方面的第五种可能的实现方式中的任一种可能的实现方式，在第七方面的第六种可能的实现方式中，所述应答消息为用户设备将所述N个下行数据对应的N个HARQ确认消息进行逻辑与运算得到的。
本申请实施例第八方面提供一种反馈装置，包括：
收发单元，用于通过目标载波接收用户设备发送的应答消息；
确定单元，用于根据所述应答消息确定所述用户设备在N个下行子帧上接收到的N个下行数据的接收状态，N为正整数。
结合第八方面，在第八方面的第一种可能的实现方式中，所述应答消息包括N个混合自动重传请求HARQ确认消息和与所述N个HARQ确认消息对应的N个子帧位置指示信息；
针对所述N个HARQ确认消息中的任意一个HARQ确认消息，所述HARQ确认消息用于指示与所述HARQ确认消息对应的子帧位置指示信息所指示的下行子帧中承载的下行数据的接收状态。
结合第八方面，在第八方面的第二种可能的实现方式中，所述应答消息为所述用户设备将所述N个下行数据对应的N个HARQ确认消息进行逻辑与运算得到的。
结合第八方面的第二种可能的实现方式，在第八方面的第三种可能的实现方式中，所述收发单元还用于：
若确定所述应答消息为否定应答NACK，则重新向所述用户设备发送所 述N个下行数据。
本申请实施例第九方面提供一种载波调度装置，包括：
处理器，用于根据为用户设备调度的资源块确定传输时间间隔TTI指示信息，所述TTI指示信息用于指示所述资源块所在的子帧所处的TTI位于被调度载波中的位置；
收发机，用于通过调度载波向所述用户设备发送所述TTI指示信息。
结合第九方面，在第九方面的第一种可能的实现方式中，所述被调度载波对应的TTI小于所述调度载波对应的TTI。
结合第九方面，在第九方面的第二种可能的实现方式中，所述TTI指示信息用于指示所述资源块所在的子帧所处的TTI位于N个TTI中的位置，所述N个TTI为所述被调度载波中与所述调度载波中的主TTI处于同一时间段的TTI，所述主TTI为所述调度载波中与所述资源块所在的子帧同时传输的子帧所处的TTI，N为正整数。
结合第九方面的第二种可能的实现方式，在第九方面的第三种可能的实现方式中，所述TTI指示信息为K个TTI标识，每个TTI标识指示出一个TTI位于所述N个TTI中的位置，K为正整数。
结合第九方面的第三种可能的实现方式，在第九方面的第四种可能的实现方式中，TTI标识与TTI位于所述N个TTI中的位置的对应关系为所述基站通过无线资源控制RRC信令发送给所述用户设备的。
结合第九方面，在第九方面的第五种可能的实现方式中，所述TTI指示信息为所述资源块的资源块编号。
结合第九方面，在第九方面的第六种可能的实现方式中，所述TTI指示信息为载波指示域CIF，用于指示所述资源块所在的子帧所处的TTI位于所述被调度载波中的位置为预设位置。
结合第九方面以及第九方面的第一种可能的实现方式至第六种可能的实现方式中任一种可能的实现方式，在第九方面的第七种可能的实现方式中，所述资源块用于承载所述用户设备发送的上行信令或上行数据。
结合第九方面的第七种可能的实现方式，在第九方面的第八种可能的实现方式中，所述收发机还用于：
向所述用户设备发送符号指示信息，所述符号指示信息用于指示承载所述上行信令或上行数据的符号位于所述资源块所在的子帧中的位置。
结合第九方面以及第九方面的第一种可能的实现方式至第八种可能的实现方式中任一种可能的实现方式，在第九方面的第九种可能的实现方式中，所述被调度载波为位于非授权频段中的载波，或者，所述被调度载波为位于授权频段中的载波；
所述调度载波为位于非授权频段中的载波，或者，所述调度载波为位于授权频段中的载波。
本申请实施例第十方面提供一种载波调度装置，包括：
收发机，用于接收通过调度载波发送的传输时间间隔TTI指示信息；
处理器，用于根据所述TTI指示信息确定基站调度的资源块所在的子帧所处的TTI位于被调度载波中的位置。
结合第十方面，在第十方面的第一种可能的实现方式中，所述被调度载波对应的TTI小于所述调度载波对应的TTI。
结合第十方面，在第十方面的第二种可能的实现方式中，所述TTI指示信息用于指示所述资源块所在的子帧所处的TTI位于N个TTI中的位置，所述N个TTI为所述被调度载波中与所述调度载波中的主TTI处于同一时间段的TTI，所述主TTI为所述调度载波中与所述资源块所在的子帧同时传输的子帧所处的TTI，N为正整数。
结合第十方面的第二种可能的实现方式，在第十方面的第三种可能的实现方式中，所述TTI指示信息为K个TTI标识，每个TTI标识指示出一个TTI位于所述N个TTI中的位置，K为正整数。
结合第十方面的第三种可能的实现方式，在第十方面的第四种可能的实现方式中，TTI标识与TTI位于所述N个TTI中的位置的对应关系为所述基站通过无线资源控制RRC信令发送给所述用户设备的。
结合第十方面的第四种可能的实现方式，在第十方面的第五种可能的实现方式中，所述TTI指示信息为所述资源块的资源块编号。
结合第十方面，在第十方面的第六种可能的实现方式中，所述TTI指示信息为载波指示域CIF，用于指示所述资源块所在的子帧所处的TTI位于所述被调度载波中的位置为预设位置。
结合第十方面，在第十方面的第七种可能的实现方式中，所述收发机还用于：
通过所述资源块发送上行信令或上行数据。
结合第十方面的第七种可能的实现方式，在第十方面的第八种可能的实现方式中，所述收发机还用于：
接收所述基站发送的符号指示信息，所述符号指示信息用于指示承载所述上行信令或上行数据的符号位于所述资源块所在的子帧中的位置。
结合第十方面的第七种可能的实现方式，在第十方面的第九种可能的实现方式中，所述收发机还用于：
根据对话前监听LBT确定所述资源块可用。
结合第十方面以及第十方面的第一种可能的实现方式至第九种可能的实现方式中任一种可能的实现方式，在第十方面的第十种可能的实现方式中，所述被调度载波为位于非授权频段中的载波，或者，所述被调度载波为位于授权频段中的载波；
所述调度载波为位于非授权频段中的载波，或者，所述调度载波为位于授权频段中的载波。
本申请实施例第十一方面提供一种反馈装置，包括：
收发机，用于在N个下行子帧上接收N个下行数据，N为正整数；
处理器，用于确定用于反馈所述N个下行数据的应答消息的目标载波，并通过所述目标载波向基站发送所述应答消息。
结合第十一方面，在第十一方面的第一种可能的实现方式中，所述处理器具体用于：
从可用的成员载波中确定传输时间间隔TTI最短的成员载波，并将所述TTI最短的成员载波中载波编号标识最小的成员载波确定为用于反馈所述N个下行数据的应答消息的目标载波。
结合第十一方面，在第十一方面的第二种可能的实现方式中，所述处理器具体用于：
若确定不传输物理上行共享信道PUSCH，则所述可用的成员载波为物理上行控制信道PUCCH所在的载波；
若确定传输PUSCH，则所述可用的成员载波为所述PUSCH所在的载波。
结合第十一方面以及第十一方面的第一种可能的实现方式至第十一方面的第二种可能的实现方式中的任一种可能的实现方式，在第十一方面的第三种可能的实现方式中，所述应答消息包括N个混合自动重传请求HARQ确认消息和与所述N个HARQ确认消息对应的N个子帧位置指示信息；
针对所述N个HARQ确认消息中的任意一个HARQ确认消息，所述HARQ确认消息用于指示与所述HARQ确认消息对应的子帧位置指示信息所指示的下行子帧中承载的下行数据的接收状态。
结合第十一方面的第三种可能的实现方式，在第十一方面的第四种可能的实现方式中，所述子帧位置指示信息为下行子帧标识。
结合第十一方面的第四种可能的实现方式，在第十一方面的第五种可能的实现方式中，下行子帧标识与下行子帧位于载波中的位置的对应关系为所述基站通过无线资源控制RRC信令发送给所述用户设备的。
结合第十一方面以及第十一方面的第一种可能的实现方式至第十一方面的第五种可能的实现方式中的任一种可能的实现方式，在第十一方面的第六种可能的实现方式中，所述应答消息为用户设备将所述N个下行数据对应的N个HARQ确认消息进行逻辑与运算得到的。
本申请实施例第十二方面提供一种反馈装置，包括：
收发机，用于通过目标载波接收用户设备发送的应答消息；
处理器，用于根据所述应答消息确定所述用户设备在N个下行子帧上接 收到的N个下行数据的接收状态，N为正整数。
结合第十二方面，在第十二方面的第一种可能的实现方式中，所述应答消息包括N个混合自动重传请求HARQ确认消息和与所述N个HARQ确认消息对应的N个子帧位置指示信息；
针对所述N个HARQ确认消息中的任意一个HARQ确认消息，所述HARQ确认消息用于指示与所述HARQ确认消息对应的子帧位置指示信息所指示的下行子帧中承载的下行数据的接收状态。
结合第十二方面，在第十二方面的第二种可能的实现方式中，所述应答消息为所述用户设备将所述N个下行数据对应的N个HARQ确认消息进行逻辑与运算得到的。
结合第十二方面的第二种可能的实现方式，在第十二方面的第三种可能的实现方式中，所述收发机还用于：
若确定所述应答消息为否定应答NACK，则重新向所述用户设备发送所述N个下行数据。
附图说明
图1为现有技术中跨载波调度示意图；
图2为本申请实施例提供的一种跨载波调度示意图；
图3为本申请实施例提供的一种跨载波调度方法流程示意图；
图4为本申请实施例提供的一种跨载波调度示意图；
图5为本申请实施例提供的一种跨载波调度示意图；
图6为本申请实施例提供的一种跨载波调度示意图；
图7为本申请实施例提供的一种反馈方法流程示意图；
图8为本申请实施例提供的一种跨载波调度装置结构示意图；
图9为本申请实施例提供的一种跨载波调度装置结构示意图；
图10为本申请实施例提供的一种反馈装置结构示意图；
图11为本申请实施例提供的一种反馈装置结构示意图；
图12为本申请实施例提供的一种跨载波调度装置结构示意图；
图13为本申请实施例提供的一种跨载波调度装置结构示意图；
图14为本申请实施例提供的一种反馈装置结构示意图；
图15为本申请实施例提供的一种反馈装置结构示意图。
具体实施方式
为了使本申请的目的、技术方案及有益效果更加清楚明白，以下结合附图及实施例，对本申请进行进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本申请，并不用于限定本申请。
本申请实施例适用于LTE，以及其它能够支持载波聚合技术的网络，比如支持双载波技术(Dual Carrier)通用移动通信系统陆地无线接入网(Universal Mobile Telecommunications Syste Terrestrial Radio Access Network，简称UTRAN)，支持下行双载波技术(Downlink Dual Carrier)增强型数据速率全球移动通信系统演进技术无线接入网(Global System for Mobile Communication Enhanced Data Rate for GSM Evolution Radio Access Network，简称GERAN)等。
本申请实施例中，术语“用户设备”包括但不限于移动站、固定或移动用户单元、寻呼机、蜂窝电话、个人数字助理(Personal Digital Assistant，简称PDA)、计算机或任何其它类型的能在无线环境中工作的用户设备。术语“基站”包括但不限于基站、节点、站控制器、接入点(Access Point，简称AP)、或任何其它类型的能够在无线环境中工作的接口设备。术语“成员载波”具体是指能够进行CA的载波，可以为位于授权频段中的载波，也可以为位于非授权频段中的载波。
本申请实施例可以用于各种CA场景，不限于站内CA、站间CA、异构网CA等。
现有技术中，CA中允许跨载波调度(cross-carrier scheduling)，即通过一个小区上的PDCCH/ePDCCH调度其他服务小区的PDSCH(Physical Downlink  Shared Channel，物理下行共享信道)或者PUSCH(Physical Uplink Shared Channel，物理上行共享信道)。如图1所示，为现有技术中跨载波调度示意图。可以通过CC1的PDCCH可以调度CC2和CC3上的资源块。由于主载波和辅载波的TTI相同，因此跨载波调度时，通过主载波PDCCH/ePDCCH中承载的DCI(Downlink Control Information，下行控制信息)中的CIF(Carrier indicator field，载波指示域)指示被调度的资源块所处的载波，就可以确定被调度的资源块所在的子帧所处的TTI——因为辅载波中被调度的资源块所处的TTI必然和主载波中被调度的资源块所处的TTI处于同一个时间段。若主载波对应的TTI大于辅载波对应的TTI，主载波中的一个TTI可能会对应辅载波中的多个TTI，而CIF只能指示被调度的资源块所处的载波，从而导致用户设备在根据CIF确定被调度的资源块所处的载波之后，无法确定被调度的资源块所在的子帧所处的TTI。如图2所示，为本申请实施例提供的一种跨载波调度示意图。图2中CC1中的TTI等于2个CC2中的TTI，分别为TTI 1和TTI 2。图2中，通过CC1的PDCCH调度CC2上的资源时，基站只能通过CIF指示出被调度的资源块所在的载波为CC2，不能指示出被调度的资源块所在的子帧位于CC2中的TTI 1还是TTI 2。
本申请实施例中，同一个载波中的TTI和子帧的长度是相同的，即一个子帧的长度就是一个TTI的长度。但是，TTI是一个调度层面的概念，基站和用户设备以TTI为单位安排数据传输；而子帧是一个物理层面的概念，物理层以子帧为单位安排基带及射频的处理行为。在现在的LTE系统中，这二者在时间长度上是等同的。但是在实际运行中，并不强求这两个概念等同。比如一个TTI中可以包括多个子帧，这时，MAC层以TTI为单位来安排传输，但是物理层以子帧为单位来处理。这种情况下，本申请实施例中，只需指示资源块所在的子帧所处的到TTI即可。
为了解决上述问题，本申请实施例提供一种跨载波调度方法，下面进行详细描述。
基于上述描述，如图3所示，本申请实施例提供一种跨载波调度方法流 程示意图，包括：
步骤301，基站根据为用户设备调度的资源块确定TTI指示信息，所述TTI指示信息用于指示所述资源块所在的子帧所处的TTI位于被调度载波中的位置。
本申请实施例中，调度载波可以是指为用户设备调度其他载波(例如辅载波)中的资源块的载波。被调度载波可以是指载波中的资源块被其他载波(例如主载波)调度的载波，可以为辅载波。
步骤301中，基站为用户设备调度的资源块可以为上行资源块，也可以为下行资源块。同时，所述被调度载波不限定频段范围，可以为位于非授权频段中的载波，所述被调度载波还可以为位于授权频段中的载波。这里的授权频段是指国家、地区或组织授予电信运营商提供用户设备移动和互联网接入等通信服务时接入网(例如上述基站)与用户设备之间通信所使用的频段，例如各种各种无线接入制式如LTE、UTRAN和GERAN等所使用的频段。非授权频段指上述授权频段之外的频段，常见的有采用无线保真(wireless fidelity，Wi-Fi)技术的无线局域网、广播电视信号和卫星通信等所使用的频段。
本申请实施例可以适用于被调度载波对应的TTI小于调度载波对应的TTI、被调度载波对应的TTI等于调度载波对应的TTI、被调度载波对应的TTI大于调度载波对应的TTI等情况。下面将以被调度载波对应的TTI小于调度载波对应的TTI为例进行说明，其他情况可以参考本申请实施例中的描述，在此不再赘述。
基站在确定了为用户设备调度的资源块之后，可以确定出TTI指示信息，指示出为用户设备调度的资源块所在的子帧所处的TTI位于被调度载波中的位置。
本申请实施例中，基站确定出的TTI指示信息可以用于指示所述资源块所在的子帧所处的TTI位于N个TTI中的位置，所述N个TTI可以为所述被调度载波中与所述调度载波中的主TTI处于同一时间段的TTI，所述主TTI 为所述调度载波中与所述资源块所在的子帧同时传输的子帧所处的TTI，N为正整数。
可选的，TTI指示信息可以为K个TTI标识，每个TTI标识指示出一个TTI位于所述N个TTI中的位置，K为正整数。其中，TTI标识与TTI位于所述N个TTI中的位置的对应关系可以为基站与用户设备之间预先约定的。其中，K小于或等于N。
基站可以通过RRC(Radio Resource Control，无线资源控制)信令将TTI标识与TTI位于所述N个TTI中的位置的对应关系发送给用户设备。当然，基站也可以在发送TTI指示信息的同时，将TTI标识与TTI位于所述N个TTI中的位置的对应关系发送给用户设备，本申请实施例对此并不限定。
举例来说，结合图2，此时N为2。基站为用户设备调度的资源块位于CC2的TTI 1中。CC2中的TTI 1的TTI标识可以为0，CC2中的TTI 2的TTI标识可以为1。此时，TTI指示信息可以为0。用户设备在确定接收到的TTI指示信息为0之后，可以确定资源块位于CC2的TTI 1中。当然，TTI 1的TTI标识也可以为1，TTI 2的TTI标识也可以为0，TTI标识只需要能够唯一标识每个TTI即可，本申请实施例对TTI标识的具体取值并不限定。
进一步的，本申请实施例中，对一个具体的用户设备而言，基站可以保证该用户设备的数据只可能在N个TTI中的部分TTI中发送，所以针对该用户设备的TTI指示信息中的TTI标识只需要指向该用户设备可用的TTI即可。例如，调度载波的一个1ms的TTI对应被调度载波中的10个0.1ms的TTI。按照TTI的时间顺序，这10个0.1ms的TTI的TTI标识分别可以为0至9，但对某个用户设备而言，该用户设备的数据只可能出现在TTI标识为0和TTI标识为4的TTI内，所以针对该用户设备，TTI标识为0可以表示第1个TTI，TTI标识为1可以表示第5个TTI，即前面所述的TTI标识为4的TTI。
TTI指示信息还可以为所述资源块的资源块编号，从而指示出所述资源块所处的子帧所在的TTI的位置。其中，一个子帧中包含多个资源块，可以将为各个资源块设置的编号作为各个资源块的资源块编号。举例来说，结合图2， CC2中TTI 1包含的资源块的资源块编号为0至49，TTI 2包含的资源块的资源块编号为50至99。TTI指示信息可以为该资源块的资源块编号，基站通过CC1的PDCCH主TTI 1中资源块编号为21至40的资源块时，用户设备根据TTI指示信息确定基站为其调度的资源块的资源块编号为21至40的资源块时，就可以确定该资源块位于CC2的TTI 1中。相应的，基站通过CC1的PDCCH主TTI 2中资源块编号为79至99的资源块时，用户设备根据TTI指示信息确定基站为其调度的资源块的资源块编号为79至99的资源块时，就可以确定该资源块位于CC2的TTI 2中。这种标识方法，实质上是隐式地表示了被调度的数据所在的TTI。
本申请实施例中，TTI指示信息还可以为CIF。当TTI指示信息为CIF时，基站为用户设备调度的资源块所在的子帧所处的TTI位于被调度载波中的位置为预设位置。基站可以通过RRC信令将预设位置发送给用户设备。当然，基站也可以在发送TTI指示信息的同时，将预设位置发送给用户设备，本申请实施例对此并不限定。
举例来说，结合图2，预设位置为被调度载波中与调度载波中的主TTI对应的第一个TTI，即TTI 1。用户设备接收到CIF时，可以确定基站为用户设备调度的资源块所在的子帧所处的TTI位于与调度载波中的主TTI对应的第一个TTI。当然，也可以预设位置也可以是TTI 2。
需要说明的是，本申请实施例中，可以通过下行载波为用户设备调度下行载波中的资源块，也可以通过下行载波为用户设备调度上行载波中的资源块。
举例来说，如图4所示，为本申请实施例中提供的一种跨载波调度示意图。图4中，CC1中的TTI等于2个CC2中的TTI。CC1为下行载波，CC2为上行载波。图4中，通过CC1的PDCCH/ePDCCH调度CC2上的资源块时，基站可以通过TTI指示信息指示在CC2上调度的资源块所在的子帧所处的TTI位于CC2中的位置。图4中，如果调度的资源块位于CC2中的n+8子帧，TTI指示信息就用0指示，如果调度的资源块位于CC2中的n+9子帧，TTI 指示信息就用1指示。需要说明的是，图4中假定CC 1的调度信息与CC 2中的被调度资源块在时间上相差4个CC 1对应的TTI，实际运行中，这个时间差可以是其它任意值，此处不做限定。
基站通过下行载波为用户设备调度上行载波中的资源块时，基站可以调度用户设备在所述资源块中发送上行数据或者所有可能的上行信令，例如，基站调度用户设备在所述资源块中发送非周期性CSI(Channel State Information，信道状态信息)、非周期性SRS(Sounding Reference Signal，信道探测参考信号)等。
进一步的，基站在调度用户设备在所述资源块中发送上行数据或者上行信令的同时，还可以向用户设备发送符号指示信息，指示承载所述上行信令或上行数据的符号位于所述资源块所在的子帧中的位置。符号指示信息可以为符号的位置标识等信息。本申请实施例中术语“符号”在以LTE系统为例进行描述时可以是指OFDM符号。
步骤302，所述基站通过调度载波向所述用户设备发送所述TTI指示信息。
步骤302中，调度载波可以为位于非授权频段中的载波，或者，调度载波还可以为位于授权频段中的载波。同时需要说明的是，本申请实施例中，调度载波可以是指主载波，被调度载波可以是指辅载波。
基站可以通过调度载波的PDCCH/ePDCCH中承载的DCI向用户设备发送所述TTI指示信息。
步骤303，用户设备接收通过调度载波发送的TTI指示信息。
步骤304，所述用户设备根据所述TTI指示信息确定基站调度的资源块所在的子帧所处的TTI位于被调度载波中的位置。
步骤304中，用户设备可以盲检调度载波的PDCCH/ePDCCH，并在PDCCH/ePDCCH承载的DCI中获取CIF，从而确定被调度载波。用户设备在确定被调度载波之后，根据TTI指示信息确定基站为用户设备调度的资源块位于被调度载波中的位置，从而可以根据所述资源块传输数据或接收数据。
TTI指示信息为K个TTI标识时，用户设备可以根据所述K个TTI标识在N个TTI中确定所述资源块所在的子帧所处的K个TTI，所述N个TTI为所述被调度载波中与所述调度载波中的主TTI处于同一时间段的TTI，所述主TTI为所述调度载波中与所述资源块所在的子帧同时传输的子帧所处的TTI。
需要说明的是，两个子帧同时传输可以是指在两个子帧各自对应的TTI在时间上存在交集。例如，结合图2，CC1中的TTI 1对应的子帧与CC2中的TTI 1对应的子帧以及CC2中的TTI 2对应的子帧为同时传输的子帧。
举例来说，结合图2，CC2中的TTI 1的TTI标识可以为0，CC2中的TTI2的TTI标识可以为1。用户设备在确定接收到的TTI指示信息为0之后，可以确定资源块位于CC2的TTI 1中；用户设备在确定接收到的TTI指示信息为1之后，可以确定资源块位于CC2的TTI 2中；用户设备在确定接收到的TTI指示信息为01之后，可以确定资源块位于CC2的TTI 1以及CC2的TTI2中。
进一步的，本申请实施例中，对一个具体的用户设备而言，基站可以保证该用户设备的数据只可能在N个TTI中的部分TTI中发送，所以针对该用户设备的TTI指示信息中的TTI标识只需要指向该用户设备可用的TTI即可。例如，调度载波的一个1ms的TTI对应被调度载波中的10个0.1ms的TTI。用户设备的数据只可能出现在第1个TTI和第5个TTI中。TTI标识为0可以表示第1个TTI，TTI标识为1可以表示第5个TTI。此时用户设备在确定接收到的TTI指示信息为0之后，可以确定资源块位于CC2的TTI 1中；用户设备在确定接收到的TTI指示信息为1之后，可以确定资源块位于CC2的第5个TTI中。
TTI指示信息为资源块的资源块编号时，用户设备可以根据接收到的资源块编号确定资源块所处的子帧所在的TTI的位置。
举例来说，结合图2，CC2中TTI 1包含的资源块的资源块编号为0至49，TTI 2包含的资源块的资源块编号为50至99。用户设备根据TTI指示信息确定基站为其调度的资源块的资源块编号为21至40的资源块时，就可以确定 该资源块位于CC2的TTI 1中。用户设备根据TTI指示信息确定基站为其调度的资源块的资源块编号为79至99的资源块时，就可以确定该资源块位于CC2的TTI 2中。
TTI指示信息为CIF时，用户设备可以根据预设位置确定基站调度的资源块所在的子帧所处的TTI位于被调度载波中的位置。
举例来说，结合图2，预设位置为被调度载波中与调度载波中的主TTI对应的第一个TTI，即TTI 1。用户设备接收到CIF时，可以确定基站为用户设备调度的资源块所在的子帧所处的TTI位于与调度载波中的主TTI对应的第一个TTI。当然，也可以预设位置也可以是TTI 2。
本申请实施例中，用户设备可以通过所述资源块发送上行信令或上行数据。例如，用户设备可以在所述资源块中发送非周期性CSI、非周期性SRS等上行信令。
进一步的，用户设备还可以根据基站发送的符号指示信息确定承载所述上行信令或上行数据的符号位于所述资源块所在的子帧中的位置。
举例来说，如图5所示，为本申请实施例提供的一种跨载波调度示意图。图5中，基站在通过TTI指示信息向用户设备指示资源块所在的子帧为n+8和n+9，同时，还通过符号指示信息向用户设备指示承载所述上行信令或上行数据的符号位于子帧n+8的最后一个符号以及子帧n+9的倒数第二个符号中。
进一步的，本申请实施例中，资源块为上行资源块且被调度载波为非授权频段中的载波时，用户设备还可能需要根据LBT(listen before talk，对话前监听)确定所述资源块是否可用，并在确定所述资源块可用时，通过所述资源块发送上行信令或上行数据。
举例来说，结合图5，CC1为授权频段中的下行载波，CC2为非授权频段中的上行载波。基站在通过TTI指示信息向用户设备指示资源块1所在的子帧为n+8、资源块2所在的子帧为n+9。用户设备如果根据LBT确定资源块1可用、资源块2可用，则可以在资源块1以及资源块2中发送上行数据或上行信令；用户设备如果根据LBT确定资源块1不可用、资源块2可用， 则可以在资源块2中发送上行数据或上行信令；用户设备如果根据LBT确定资源块1不可用、资源块2不可用，则不在资源块1以及资源块2中发送上行数据或上行信令。值得指出的是，此处假定被调度的资源块在被调度载波中只有一次出现的机会，实际上，基站可以预先配置一个窗口，被调度的资源块可以在该窗口内出现多次。用户设备可以按时间顺序做LBT，如果成功，就使用被调度的资源块发送上行数据或上行信令，如果不成功，就在窗口内的下一次被调度的资源块位置出现前再次尝试LBT，直到LBT成功，或到窗口结束为止。
在LTE中，通过采用HARQ(Hybrid Automatic Repeat reQuest，混合自动重传请求)技术来提高系统的可靠性，降低分组传输的错误率。以下行为例，用户设备根据PDCCH/ePDCCH上的下行资源分配信息在指定的HARQ进程对应的软缓冲区解码PDSCH(Physical Downlink Shared Channel，物理下行共享信道)中的数据，并根据解码结果生成上行HARQ确认消息，反馈信息在PUCCH(Physical Uplink Control Channel，物理上行控制信道)或者PUSCH上发送给基站，其中，HARQ确认消息可以为ACK(Acknowledge，确认应答)/NACK(Negative Acknowledge，否定应答)。基站根据接收到的HARQ确认消息决定进行HARQ重传还是发送新数据。
在载波聚合技术中，进行HARQ和CSI反馈时，在一个载波上可以反馈多个载波的HARQ确认消息及CSI，但由于载波的TTI相同，并且载波间是完全同步的，所以时域资源上映射关系是一一对应的。如果载波聚合时，主载波与辅载波的TTI不同，则可能会导致时域资源上映射关系不再一一对应。例如，如图6所示，为本发明实施例提供的一种跨载波调度示意图。图6中，主载波为CC1，辅载波为CC2。基站通过主载波为用户设备调度的资源块位于CC2的子帧n和子帧n+1中，根据HARQ反馈窗口的规定，用户设备需要在CC1的子帧m+2中同时反馈通过子帧n和子帧n+1中的资源块接收到的下行数据的接收状态。根据现有的反馈方法，基站无法区分收到的反馈是针对子帧n的下行数据的反馈，还是针对子帧n+1的下行数据的反馈。
为了解决上述问题，本申请实施例提供一种反馈方法，下面进行详细描述。
基于上述描述，如图7所示，本申请实施例提供一种反馈方法流程示意图，包括：
步骤701，用户设备在N个下行子帧上接收N个下行数据，N为正整数。
步骤702，所述用户设备确定用于反馈所述N个下行数据的应答消息的目标载波，并通过所述目标载波向基站发送所述应答消息。
步骤701中，所述N个下行子帧可以为辅载波中的N个下行子帧。
步骤702中，用户设备在接收到所述N个下行数据之后，可以根据N个下行数据的接收状态生成应答消息，其中接收状态可以为正确接收或者未正确接收。
本申请实施例中，用户设备生成的应答消息可以包括N个HARQ确认消息和N个子帧位置指示信息。每个HARQ确认消息和一个子帧位置指示信息对应。针对所述N个HARQ确认消息中的任意一个HARQ确认消息，所述HARQ确认消息用于指示与所述HARQ确认消息对应的子帧位置指示信息所指示的下行子帧中承载的下行数据的接收状态。每个HARQ确认消息可以为ACK或者NACK，具体可以根据该HARQ确认消息对应的下行数据的接收状态确定。
本申请实施例中，子帧位置指示信息可以为下行子帧标识，下行子帧标识指示出该下行子帧标识对应的子帧位于该子帧所处的载波中的位置。
举例来说，结合图6，CC2中从子帧n至子帧n+9的下行子帧标识可以为0至9。用户设备反馈子帧n+1中承载的下行数据的接收状态时，发送的下行子帧标识可以为1。
进一步的，本申请实施例中，对一个具体的用户设备而言，基站可以保证该用户设备的数据只可能在载波的部分子帧中发送，所以针对该用户设备的子帧位置指示信息中的子帧标识只需要指向该用户设备可用的子帧即可。例如，主载波的1个1ms的TTI对应辅载波中的10个0.1ms的TTI，即主载 波中的1个子帧的传输时间长度等于辅载波中10个子帧的传输时间长度。用户设备的数据只可能出现在第1个子帧和第5个子帧中。此时，TTI标识为0可以表示第1个子帧，TTI标识为1可以表示第5个子帧。
进一步的，下行子帧标识与下行子帧位于载波中的位置的对应关系可以为基站通过RRC信令发送给所述用户设备的。当然，也可以为基站在发送下行数据的同时发送给用户设备的。
子帧位置指示信息还可以为承载下行数据的资源块的资源块编号。举例来说，结合图6，CC2中子帧n包含的资源块的资源块编号为0至49，子帧n+1包含的资源块的资源块编号为50至99。用户设备在子帧n中编号为21至40的资源块上接收到下行数据。此时用户设备确定出的子帧位置指示信息可以分别为接收下行数据的资源块的资源块编号。
可选的，应答消息还可以为所述用户设备将所述N个下行数据对应的N个HARQ确认消息进行逻辑与运算得到的。此时，只有所有N个下行数据都正确接收时，应答消息才为ACK；N个下行数据中任意一个下行数据未正确接收时，应答消息均为NACK，此时基站需要重新传输所有N个下行数据。
通过这种方法，可以减少应答消息传输的数据流，从而减少系统负荷。
举例来说，结合图6。图6中，用户设备在子帧n中正确接收到下行数据，在子帧n+1中正确接收到下行数据，则生成的应答消息为ACK，基站接收到应答消息后确定应答消息为ACK，则确定用户设备在子帧n和子帧n+1中均正确接收到下行数据。用户设备在子帧n中正确接收到下行数据，在子帧n+1中未正确接收到下行数据，则生成的应答消息为NACK，基站接收到应答消息后确定应答消息为NACK，则确定用户设备未正确接收到下行数据。用户设备在子帧n中未正确接收到下行数据，在子帧n+1中正确接收到下行数据，则生成的应答消息为NACK，基站接收到应答消息后确定应答消息为NACK，则确定用户设备未正确接收到下行数据，用户设备在子帧n中未正确接收到下行数据，在子帧n+1中未正确接收到下行数据，则生成的应答消息为NACK。基站接收到应答消息后确定应答消息为NACK，则确定用户设备未正确接收 到下行数据。
本申请实施例中，用户设备确定发送所述应答消息的目标载波时，可以将主载波确定为目标载波，也可以将辅载波确定为目标载波。
进一步的，用户设备可以从可用的成员载波中确定TTI最短的成员载波，并将所述TTI最短的成员载波中载波编号标识最小的成员载波确定为用于反馈所述N个下行数据的应答消息的目标载波。
需要说明的是，本申请实施例中，用户设备若确定不传输PUSCH，则将传输PUCCH的载波确定为可用的成员载波；若确定传输PUSCH，则将传输PUSCH的载波确定为可用的成员载波。
步骤703，基站通过目标载波接收用户设备发送的应答消息。
步骤704，所述基站根据所述应答消息确定所述用户设备在N个下行子帧上接收到的N个下行数据的接收状态，N为正整数。
步骤704中，基站根据接收到的应答消息确定重传或者发送新的下行数据。
应答消息为包括N个HARQ确认消息和N个子帧位置指示信息时，基站若接收到的HARQ确认消息为NACK，则重新传输该HARQ确认消息对应的子帧位置指示信息所指示的下行子帧中承载的下行数据。
应答消息为所述用户设备通过将所述N个下行数据对应的N个HARQ确认消息进行逻辑与运算得到的时，所述基站若确定所述应答消息为NACK，则重新向所述用户设备发送所述N个下行数据。所述基站若确定所述应答消息为ACK，则可以向所述用户设备发送新的下行数据。
上述例子中都假定调度载波与被调度载波使用不同长度的TTI，在跨载波调度的场景下工作。实际上，也可以将上述条件扩展，比如，同一个小区，在不同的时间段使用不同长度的TTI工作，比如在时间段0-T1范围内，使用1ms的TTI，发送调度指示，通知UE下行数据的资源块位置在T2-T3时间段内，或者通知用户设备上行数据的资源块位置在T2-T3时间段内。在时间段T2-T3范围内，使用0.1ms的TTI。这种情况下，也可以使用本申请实施例中 给出的方法，指示在T2-T3范围内具体哪个0.1ms的TTI。
基于相同构思，本发明实施例中提供一种载波调度装置，用于执行上述方法流程。
如图8所示，为本申请实施例提供的一种载波调度装置结构示意图。
参见图8，该装置包括：
确定单元801，用于根据为用户设备调度的资源块确定传输时间间隔TTI指示信息，所述TTI指示信息用于指示所述资源块所在的子帧所处的TTI位于被调度载波中的位置；
发送单元802，用于通过调度载波向所述用户设备发送所述TTI指示信息。
可选的，所述被调度载波对应的TTI小于所述调度载波对应的TTI。
可选的，所述TTI指示信息用于指示所述资源块所在的子帧所处的TTI位于N个TTI中的位置，所述N个TTI为所述被调度载波中与所述调度载波中的主TTI处于同一时间段的TTI，所述主TTI为所述调度载波中与所述资源块所在的子帧同时传输的子帧所处的TTI，N为正整数。
可选的，所述TTI指示信息为K个TTI标识，每个TTI标识指示出一个TTI位于所述N个TTI中的位置，K为正整数。
可选的，TTI标识与TTI位于所述N个TTI中的位置的对应关系为所述基站通过无线资源控制RRC信令发送给所述用户设备的。
可选的，所述TTI指示信息为所述资源块的资源块编号。
可选的，所述TTI指示信息为载波指示域CIF，用于指示所述资源块所在的子帧所处的TTI位于所述被调度载波中的位置为预设位置。
可选的，所述资源块用于承载所述用户设备发送的上行信令或上行数据。
可选的，所述发送单元802还用于：
向所述用户设备发送符号指示信息，所述符号指示信息用于指示承载所述上行信令或上行数据的符号位于所述资源块所在的子帧中的位置。
可选的，所述被调度载波为位于非授权频段中的载波，或者，所述被调 度载波为位于授权频段中的载波；
所述调度载波为位于非授权频段中的载波，或者，所述调度载波为位于授权频段中的载波。
基于相同构思，本发明实施例中提供一种载波调度装置，用于执行上述方法流程。
如图9所示，为本申请实施例提供的一种载波调度装置结构示意图。
参见图9，该装置包括：
收发单元901，用于接收通过调度载波发送的传输时间间隔TTI指示信息；
确定单元902，用于根据所述TTI指示信息确定基站调度的资源块所在的子帧所处的TTI位于被调度载波中的位置。
可选的，所述被调度载波对应的TTI小于所述调度载波对应的TTI。
可选的，所述TTI指示信息用于指示所述资源块所在的子帧所处的TTI位于N个TTI中的位置，所述N个TTI为所述被调度载波中与所述调度载波中的主TTI处于同一时间段的TTI，所述主TTI为所述调度载波中与所述资源块所在的子帧同时传输的子帧所处的TTI，N为正整数。
可选的，所述TTI指示信息为K个TTI标识，每个TTI标识指示出一个TTI位于所述N个TTI中的位置，K为正整数。
可选的，TTI标识与TTI位于所述N个TTI中的位置的对应关系为所述基站通过无线资源控制RRC信令发送给所述用户设备的。
可选的，所述TTI指示信息为所述资源块的资源块编号。
可选的，所述TTI指示信息为载波指示域CIF，用于指示所述资源块所在的子帧所处的TTI位于所述被调度载波中的位置为预设位置。
可选的，所述收发单元901具体用于：
通过所述资源块发送上行信令或上行数据。
可选的，所述收发单元901还用于：
接收所述基站发送的符号指示信息，所述符号指示信息用于指示承载所 述上行信令或上行数据的符号位于所述资源块所在的子帧中的位置。
可选的，所述收发单元901还用于：
根据对话前监听LBT确定所述资源块可用。
可选的，所述被调度载波为位于非授权频段中的载波，或者，所述被调度载波为位于授权频段中的载波；
所述调度载波为位于非授权频段中的载波，或者，所述调度载波为位于授权频段中的载波。
基于相同构思，本发明实施例中提供一种反馈装置，用于执行上述方法流程。
如图10所示，为本申请实施例提供的一种反馈装置结构示意图。
参见图10，该装置包括：
收发单元1001，用于在N个下行子帧上接收N个下行数据，N为正整数；
确定单元1002，用于确定用于反馈所述N个下行数据的应答消息的目标载波；
所述收发单元1001，用于通过所述目标载波向基站发送所述应答消息。
可选的，所述确定单元1002具体用于：
从可用的成员载波中确定传输时间间隔TTI最短的成员载波，并将所述TTI最短的成员载波中载波编号标识最小的成员载波确定为用于反馈所述N个下行数据的应答消息的目标载波。
可选的，所述确定单元1002具体用于：
若确定不传输物理上行共享信道PUSCH，则所述可用的成员载波为物理上行控制信道PUCCH所在的载波；
若确定传输PUSCH，则所述可用的成员载波为所述PUSCH所在的载波。
可选的，所述应答消息包括N个混合自动重传请求HARQ确认消息和与所述N个HARQ确认消息对应的N个子帧位置指示信息；
针对所述N个HARQ确认消息中的任意一个HARQ确认消息，所述HARQ确认消息用于指示与所述HARQ确认消息对应的子帧位置指示信息所 指示的下行子帧中承载的下行数据的接收状态。
可选的，所述子帧位置指示信息为下行子帧标识。
可选的，下行子帧标识与下行子帧位于载波中的位置的对应关系为所述基站通过无线资源控制RRC信令发送给所述用户设备的。
可选的，所述应答消息为用户设备将所述N个下行数据对应的N个HARQ确认消息进行逻辑与运算得到的。
基于相同构思，本发明实施例中提供一种反馈装置，用于执行上述方法流程。
如图11所示，为本申请实施例提供的一种反馈装置结构示意图。
参见图11，该装置包括：
收发单元1101，用于通过目标载波接收用户设备发送的应答消息；
确定单元1102，用于根据所述应答消息确定所述用户设备在N个下行子帧上接收到的N个下行数据的接收状态，N为正整数。
可选的，所述应答消息包括N个混合自动重传请求HARQ确认消息和与所述N个HARQ确认消息对应的N个子帧位置指示信息；
针对所述N个HARQ确认消息中的任意一个HARQ确认消息，所述HARQ确认消息用于指示与所述HARQ确认消息对应的子帧位置指示信息所指示的下行子帧中承载的下行数据的接收状态。
可选的，所述应答消息为所述用户设备将所述N个下行数据对应的N个HARQ确认消息进行逻辑与运算得到的。
可选的，所述收发单元1101还用于：
若确定所述应答消息为否定应答NACK，则重新向所述用户设备发送所述N个下行数据。
基于相同构思，本发明实施例中提供一种载波调度装置，用于执行上述方法流程。
如图12所示，为本申请实施例提供的一种载波调度装置结构示意图。
参见图12，该装置包括：处理器1201、存储器1202、收发机1203。
处理器1201，用于读取存储器1202中存储的程序，执行以下流程：
根据为用户设备调度的资源块确定传输时间间隔TTI指示信息，所述TTI指示信息用于指示所述资源块所在的子帧所处的TTI位于被调度载波中的位置；
收发机1203，用于通过调度载波向所述用户设备发送所述TTI指示信息。
可选的，所述被调度载波对应的TTI小于所述调度载波对应的TTI。
可选的，所述TTI指示信息用于指示所述资源块所在的子帧所处的TTI位于N个TTI中的位置，所述N个TTI为所述被调度载波中与所述调度载波中的主TTI处于同一时间段的TTI，所述主TTI为所述调度载波中与所述资源块所在的子帧同时传输的子帧所处的TTI，N为正整数。
可选的，所述TTI指示信息为K个TTI标识，每个TTI标识指示出一个TTI位于所述N个TTI中的位置，K为正整数。
可选的，TTI标识与TTI位于所述N个TTI中的位置的对应关系为所述基站通过无线资源控制RRC信令发送给所述用户设备的。
可选的，所述TTI指示信息为所述资源块的资源块编号。
可选的，所述TTI指示信息为载波指示域CIF，用于指示所述资源块所在的子帧所处的TTI位于所述被调度载波中的位置为预设位置。
可选的，所述资源块用于承载所述用户设备发送的上行信令或上行数据。
可选的，所述收发机1203还用于：
向所述用户设备发送符号指示信息，所述符号指示信息用于指示承载所述上行信令或上行数据的符号位于所述资源块所在的子帧中的位置。
可选的，所述被调度载波为位于非授权频段中的载波，或者，所述被调度载波为位于授权频段中的载波；
所述调度载波为位于非授权频段中的载波，或者，所述调度载波为位于授权频段中的载波。
其中，图12中还可以包括总线接口，总线接口可以包括任意数量的互联的总线和桥，具体由处理器代表的一个或多个处理器和存储器代表的存储器 的各种电路链接在一起。总线接口还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。总线接口提供接口。收发器提供用于在传输介质上与各种其他设备通信的单元。处理器负责管理总线架构和通常的处理，存储器可以存储处理器在执行操作时所使用的数据。
基于相同构思，本发明实施例中提供一种载波调度装置，用于执行上述方法流程。
如图13所示，为本申请实施例提供的一种载波调度装置结构示意图。
参见图13，该装置包括：处理器1301、存储器1302、收发机1303。
收发机1303，用于接收通过调度载波发送的传输时间间隔TTI指示信息；
处理器1301，用于读取存储器1302中存储的程序，执行以下流程：
根据所述TTI指示信息确定基站调度的资源块所在的子帧所处的TTI位于被调度载波中的位置。
可选的，所述被调度载波对应的TTI小于所述调度载波对应的TTI。
可选的，所述TTI指示信息用于指示所述资源块所在的子帧所处的TTI位于N个TTI中的位置，所述N个TTI为所述被调度载波中与所述调度载波中的主TTI处于同一时间段的TTI，所述主TTI为所述调度载波中与所述资源块所在的子帧同时传输的子帧所处的TTI，N为正整数。
可选的，所述TTI指示信息为K个TTI标识，每个TTI标识指示出一个TTI位于所述N个TTI中的位置，K为正整数。
可选的，TTI标识与TTI位于所述N个TTI中的位置的对应关系为所述基站通过无线资源控制RRC信令发送给所述用户设备的。
可选的，所述TTI指示信息为所述资源块的资源块编号。
可选的，所述TTI指示信息为载波指示域CIF，用于指示所述资源块所在的子帧所处的TTI位于所述被调度载波中的位置为预设位置。
可选的，所述收发机1303还用于：
通过所述资源块发送上行信令或上行数据。
可选的，所述收发机1303还用于：
接收所述基站发送的符号指示信息，所述符号指示信息用于指示承载所述上行信令或上行数据的符号位于所述资源块所在的子帧中的位置。
可选的，所述收发机1303还用于：
根据对话前监听LBT确定所述资源块可用。
可选的，所述被调度载波为位于非授权频段中的载波，或者，所述被调度载波为位于授权频段中的载波；
所述调度载波为位于非授权频段中的载波，或者，所述调度载波为位于授权频段中的载波。
其中，图13中还可以包括总线接口，总线接口可以包括任意数量的互联的总线和桥，具体由处理器代表的一个或多个处理器和存储器代表的存储器的各种电路链接在一起。总线接口还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。总线接口提供接口。收发器提供用于在传输介质上与各种其他设备通信的单元。处理器负责管理总线架构和通常的处理，存储器可以存储处理器在执行操作时所使用的数据。
基于相同构思，本发明实施例中提供一种反馈装置，用于执行上述方法流程。
如图14所示，为本申请实施例提供的一种反馈装置结构示意图。
参见图14，该装置包括：处理器1401、存储器1402、收发机1403。
收发机1403，用于在N个下行子帧上接收N个下行数据，N为正整数；
处理器1401，用于读取存储器1402中存储的程序，执行以下流程：
确定用于反馈所述N个下行数据的应答消息的目标载波，并通过所述目标载波向基站发送所述应答消息。
可选的，所述处理器1401具体用于：
从可用的成员载波中确定传输时间间隔TTI最短的成员载波，并将所述TTI最短的成员载波中载波编号标识最小的成员载波确定为用于反馈所述N 个下行数据的应答消息的目标载波。
可选的，所述处理器1401具体用于：
若确定不传输物理上行共享信道PUSCH，则所述可用的成员载波为物理上行控制信道PUCCH所在的载波；
若确定传输PUSCH，则所述可用的成员载波为所述PUSCH所在的载波。
可选的，所述应答消息包括N个混合自动重传请求HARQ确认消息和与所述N个HARQ确认消息对应的N个子帧位置指示信息；
针对所述N个HARQ确认消息中的任意一个HARQ确认消息，所述HARQ确认消息用于指示与所述HARQ确认消息对应的子帧位置指示信息所指示的下行子帧中承载的下行数据的接收状态。
可选的，所述子帧位置指示信息为下行子帧标识。
可选的，下行子帧标识与下行子帧位于载波中的位置的对应关系为所述基站通过无线资源控制RRC信令发送给所述用户设备的。
可选的，所述应答消息为用户设备将所述N个下行数据对应的N个HARQ确认消息进行逻辑与运算得到的。
其中，图14中还可以包括总线接口，总线接口可以包括任意数量的互联的总线和桥，具体由处理器代表的一个或多个处理器和存储器代表的存储器的各种电路链接在一起。总线接口还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。总线接口提供接口。收发器提供用于在传输介质上与各种其他设备通信的单元。处理器负责管理总线架构和通常的处理，存储器可以存储处理器在执行操作时所使用的数据。
基于相同构思，本发明实施例中提供一种反馈装置，用于执行上述方法流程。
如图15所示，为本申请实施例提供的一种反馈装置结构示意图。
参见图15，该装置包括：处理器1501、存储器1502、收发机1503。
收发机1503，用于通过目标载波接收用户设备发送的应答消息；
处理器1501，用于读取存储器1502中存储的程序，执行以下流程：
根据所述应答消息确定所述用户设备在N个下行子帧上接收到的N个下行数据的接收状态，N为正整数。
可选的，所述应答消息包括N个混合自动重传请求HARQ确认消息和与所述N个HARQ确认消息对应的N个子帧位置指示信息；
针对所述N个HARQ确认消息中的任意一个HARQ确认消息，所述HARQ确认消息用于指示与所述HARQ确认消息对应的子帧位置指示信息所指示的下行子帧中承载的下行数据的接收状态。
可选的，所述应答消息为所述用户设备将所述N个下行数据对应的N个HARQ确认消息进行逻辑与运算得到的。
可选的，所述收发机1503还用于：
若确定所述应答消息为否定应答NACK，则重新向所述用户设备发送所述N个下行数据。
其中，图15中还可以包括总线接口，总线接口可以包括任意数量的互联的总线和桥，具体由处理器代表的一个或多个处理器和存储器代表的存储器的各种电路链接在一起。总线接口还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。总线接口提供接口。收发器提供用于在传输介质上与各种其他设备通信的单元。处理器负责管理总线架构和通常的处理，存储器可以存储处理器在执行操作时所使用的数据。
本领域内的技术人员应明白，本申请的实施例可提供为方法、或计算机程序产品。因此，本申请可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本申请可采用在一个或多个其中包括有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。
本申请是参照根据本申请实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图 和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的设备。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令设备的制造品，该指令设备实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
尽管已描述了本申请的优选实施例，但本领域内的技术人员一旦得知了基本创造性概念，则可对这些实施例作出另外的变更和修改。所以，所附权利要求意欲解释为包括优选实施例以及落入本申请范围的所有变更和修改。
显然，本领域的技术人员可以对本申请进行各种改动和变型而不脱离本申请的范围。这样，倘若本申请的这些修改和变型属于本申请权利要求及其等同技术的范围之内，则本申请也意图包括这些改动和变型在内。

Claims (50)

  1. 一种载波调度方法，其特征在于，包括：
    基站根据为用户设备调度的资源块确定传输时间间隔TTI指示信息，所述TTI指示信息用于指示所述资源块所在的子帧所处的TTI位于被调度载波中的位置；
    所述基站通过调度载波向所述用户设备发送所述TTI指示信息。
  2. 如权利要求1所述的方法，其特征在于，所述被调度载波对应的TTI小于所述调度载波对应的TTI。
  3. 如权利要求1所述的方法，其特征在于，所述TTI指示信息用于指示所述资源块所在的子帧所处的TTI位于N个TTI中的位置，所述N个TTI为所述被调度载波中与所述调度载波中的主TTI处于同一时间段的TTI，所述主TTI为所述调度载波中与所述资源块所在的子帧同时传输的子帧所处的TTI，N为正整数。
  4. 如权利要求3所述的方法，其特征在于，所述TTI指示信息为K个TTI标识，每个TTI标识指示出一个TTI位于所述N个TTI中的位置，K为正整数。
  5. 如权利要求4所述的方法，其特征在于，TTI标识与TTI位于所述N个TTI中的位置的对应关系为所述基站通过无线资源控制RRC信令发送给所述用户设备的。
  6. 如权利要求1所述的方法，其特征在于，所述TTI指示信息为所述资源块的资源块编号。
  7. 如权利要求1所述的方法，其特征在于，所述TTI指示信息为载波指示域CIF，用于指示所述资源块所在的子帧所处的TTI位于所述被调度载波中的位置为预设位置。
  8. 如权利要求1至7任一所述的方法，其特征在于，所述资源块用于承载所述用户设备发送的上行信令或上行数据。
  9. 如权利要求8所述的方法，其特征在于，该方法还包括：
    所述基站向所述用户设备发送符号指示信息，所述符号指示信息用于指示承载所述上行信令或上行数据的符号位于所述资源块所在的子帧中的位置。
  10. 如权利要求1至9任一所述的方法，其特征在于，所述被调度载波为位于非授权频段中的载波，或者，所述被调度载波为位于授权频段中的载波；
    所述调度载波为位于非授权频段中的载波，或者，所述调度载波为位于授权频段中的载波。
  11. 一种载波调度方法，其特征在于，包括：
    用户设备接收通过调度载波发送的传输时间间隔TTI指示信息；
    所述用户设备根据所述TTI指示信息确定基站调度的资源块所在的子帧所处的TTI位于被调度载波中的位置。
  12. 如权利要求11所述的方法，其特征在于，所述被调度载波对应的TTI小于所述调度载波对应的TTI。
  13. 如权利要求11所述的方法，其特征在于，所述TTI指示信息用于指示所述资源块所在的子帧所处的TTI位于N个TTI中的位置，所述N个TTI为所述被调度载波中与所述调度载波中的主TTI处于同一时间段的TTI，所述主TTI为所述调度载波中与所述资源块所在的子帧同时传输的子帧所处的TTI，N为正整数。
  14. 如权利要求13所述的方法，其特征在于，所述TTI指示信息为K个TTI标识，每个TTI标识指示出一个TTI位于所述N个TTI中的位置，K为正整数。
  15. 如权利要求14所述的方法，其特征在于，TTI标识与TTI位于所述N个TTI中的位置的对应关系为所述基站通过无线资源控制RRC信令发送给所述用户设备的。
  16. 如权利要求11所述的方法，其特征在于，所述TTI指示信息为所述 资源块的资源块编号。
  17. 如权利要求11所述的方法，其特征在于，所述TTI指示信息为载波指示域CIF，用于指示所述资源块所在的子帧所处的TTI位于所述被调度载波中的位置为预设位置。
  18. 如权利要求17所述的方法，其特征在于，所述用户设备通过所述资源块发送上行信令或上行数据。
  19. 如权利要求18所述的方法，其特征在于，该方法还包括：
    所述用户设备接收所述基站发送的符号指示信息，所述符号指示信息用于指示承载所述上行信令或上行数据的符号位于所述资源块所在的子帧中的位置。
  20. 如权利要求18所述的方法，其特征在于，所述用户设备通过所述资源块发送上行信令或上行数据之前，还包括：
    所述用户设备根据对话前监听LBT确定所述资源块可用。
  21. 如权利要求11至20任一所述的方法，其特征在于，所述被调度载波为位于非授权频段中的载波，或者，所述被调度载波为位于授权频段中的载波；
    所述调度载波为位于非授权频段中的载波，或者，所述调度载波为位于授权频段中的载波。
  22. 一种反馈方法，其特征在于，包括：
    用户设备在N个下行子帧上接收N个下行数据，N为正整数；
    所述用户设备确定用于反馈所述N个下行数据的应答消息的目标载波，并通过所述目标载波向基站发送所述应答消息。
  23. 如权利要求22所述的方法，其特征在于，所述用户设备确定用于反馈所述N个下行数据的应答消息的目标载波，包括：
    所述用户设备从可用的成员载波中确定传输时间间隔TTI最短的成员载波，并将所述TTI最短的成员载波中载波编号标识最小的成员载波确定为用于反馈所述N个下行数据的应答消息的目标载波。
  24. 如权利要求22所述的方法，其特征在于，若确定不传输物理上行共享信道PUSCH，则所述可用的成员载波为物理上行控制信道PUCCH所在的载波；
    若确定传输PUSCH，则所述可用的成员载波为所述PUSCH所在的载波。
  25. 如权利要求22至24任一所述的方法，其特征在于，所述应答消息包括N个混合自动重传请求HARQ确认消息和与所述N个HARQ确认消息对应的N个子帧位置指示信息；
    针对所述N个HARQ确认消息中的任意一个HARQ确认消息，所述HARQ确认消息用于指示与所述HARQ确认消息对应的子帧位置指示信息所指示的下行子帧中承载的下行数据的接收状态。
  26. 如权利要求25所述的方法，其特征在于，所述子帧位置指示信息为下行子帧标识。
  27. 如权利要求25所述的方法，其特征在于，下行子帧标识与下行子帧位于载波中的位置的对应关系为所述基站通过无线资源控制RRC信令发送给所述用户设备的。
  28. 如权利要求22至27任一所述的方法，其特征在于，所述应答消息为所述用户设备将所述N个下行数据对应的N个HARQ确认消息进行逻辑与运算得到的。
  29. 一种反馈方法，其特征在于，包括：
    基站通过目标载波接收用户设备发送的应答消息；
    所述基站根据所述应答消息确定所述用户设备在N个下行子帧上接收到的N个下行数据的接收状态，N为正整数。
  30. 如权利要求29所述的方法，其特征在于，所述应答消息包括N个混合自动重传请求HARQ确认消息和与所述N个HARQ确认消息对应的N个子帧位置指示信息；
    针对所述N个HARQ确认消息中的任意一个HARQ确认消息，所述HARQ确认消息用于指示与所述HARQ确认消息对应的子帧位置指示信息所 指示的下行子帧中承载的下行数据的接收状态。
  31. 如权利要求29所述的方法，其特征在于，所述应答消息为所述用户设备将所述N个下行数据对应的N个HARQ确认消息进行逻辑与运算得到的。
  32. 如权利要求31所述的方法，其特征在于，该方法还包括：
    所述基站若确定所述应答消息为否定应答NACK，则重新向所述用户设备发送所述N个下行数据。
  33. 一种载波调度装置，其特征在于，包括：
    确定单元，用于根据为用户设备调度的资源块确定传输时间间隔TTI指示信息，所述TTI指示信息用于指示所述资源块所在的子帧所处的TTI位于被调度载波中的位置；
    发送单元，用于通过调度载波向所述用户设备发送所述TTI指示信息。
  34. 如权利要求33所述的装置，其特征在于，所述被调度载波对应的TTI小于所述调度载波对应的TTI。
  35. 如权利要求33所述的装置，其特征在于，所述TTI指示信息用于指示所述资源块所在的子帧所处的TTI位于N个TTI中的位置，所述N个TTI为所述被调度载波中与所述调度载波中的主TTI处于同一时间段的TTI，所述主TTI为所述调度载波中与所述资源块所在的子帧同时传输的子帧所处的TTI，N为正整数。
  36. 如权利要求35所述的装置，其特征在于，所述TTI指示信息为K个TTI标识，每个TTI标识指示出一个TTI位于所述N个TTI中的位置，K为正整数。
  37. 如权利要求36所述的装置，其特征在于，TTI标识与TTI位于所述N个TTI中的位置的对应关系为所述基站通过无线资源控制RRC信令发送给所述用户设备的。
    资源块编号
  38. 如权利要求33-37所述的装置，其特征在于，所述发送单元还用于：
    向所述用户设备发送符号指示信息，所述符号指示信息用于指示承载所述上行信令或上行数据的符号位于所述资源块所在的子帧中的位置。
  39. 如权利要求33至38任一所述的装置，其特征在于，所述被调度载波为位于非授权频段中的载波，或者，所述被调度载波为位于授权频段中的载波；
    所述调度载波为位于非授权频段中的载波，或者，所述调度载波为位于授权频段中的载波。
  40. 一种载波调度装置，其特征在于，包括：
    收发单元，用于接收通过调度载波发送的传输时间间隔TTI指示信息；
    确定单元，用于根据所述TTI指示信息确定基站调度的资源块所在的子帧所处的TTI位于被调度载波中的位置。
  41. 如权利要求40所述的装置，其特征在于，所述TTI指示信息用于指示所述资源块所在的子帧所处的TTI位于N个TTI中的位置，所述N个TTI为所述被调度载波中与所述调度载波中的主TTI处于同一时间段的TTI，所述主TTI为所述调度载波中与所述资源块所在的子帧同时传输的子帧所处的TTI，N为正整数。
  42. 如权利要求41所述的装置，其特征在于，TTI标识与TTI位于所述N个TTI中的位置的对应关系为所述基站通过无线资源控制RRC信令发送给所述用户设备的。
  43. 如权利要求40所述的装置，其特征在于，所述TTI指示信息为载波指示域CIF，用于指示所述资源块所在的子帧所处的TTI位于所述被调度载波中的位置为预设位置。
  44. 如权利要求40至43任一所述的装置，其特征在于，所述被调度载波为位于非授权频段中的载波，或者，所述被调度载波为位于授权频段中的载波；
    所述调度载波为位于非授权频段中的载波，或者，所述调度载波为位于授权频段中的载波。
  45. 一种反馈装置，其特征在于，包括：
    收发单元，用于在N个下行子帧上接收N个下行数据，N为正整数；
    确定单元，用于确定用于反馈所述N个下行数据的应答消息的目标载波；
    所述收发单元，用于通过所述目标载波向基站发送所述应答消息。
  46. 如权利要求45所述的装置，其特征在于，所述确定单元具体用于：
    从可用的成员载波中确定传输时间间隔TTI最短的成员载波，并将所述TTI最短的成员载波中载波编号标识最小的成员载波确定为用于反馈所述N个下行数据的应答消息的目标载波。
  47. 如权利要求45所述的装置，其特征在于，所述确定单元具体用于：
    若确定不传输物理上行共享信道PUSCH，则所述可用的成员载波为物理上行控制信道PUCCH所在的载波；
    若确定传输PUSCH，则所述可用的成员载波为所述PUSCH所在的载波。
  48. 如权利要求45至47任一所述的装置，其特征在于，所述应答消息包括N个混合自动重传请求HARQ确认消息和与所述N个HARQ确认消息对应的N个子帧位置指示信息；
    针对所述N个HARQ确认消息中的任意一个HARQ确认消息，所述HARQ确认消息用于指示与所述HARQ确认消息对应的子帧位置指示信息所指示的下行子帧中承载的下行数据的接收状态。
  49. 一种反馈装置，其特征在于，包括：
    收发单元，用于通过目标载波接收用户设备发送的应答消息；
    确定单元，用于根据所述应答消息确定所述用户设备在N个下行子帧上接收到的N个下行数据的接收状态，N为正整数。
  50. 如权利要求49所述的装置，其特征在于，所述应答消息包括N个混合自动重传请求HARQ确认消息和与所述N个HARQ确认消息对应的N个子帧位置指示信息；
    针对所述N个HARQ确认消息中的任意一个HARQ确认消息，所述HARQ确认消息用于指示与所述HARQ确认消息对应的子帧位置指示信息所 指示的下行子帧中承载的下行数据的接收状态。
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