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WO2013000299A1 - 一种发送和接收反馈信息的方法、系统及装置 - Google Patents

一种发送和接收反馈信息的方法、系统及装置 Download PDF

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Publication number
WO2013000299A1
WO2013000299A1 PCT/CN2012/073056 CN2012073056W WO2013000299A1 WO 2013000299 A1 WO2013000299 A1 WO 2013000299A1 CN 2012073056 W CN2012073056 W CN 2012073056W WO 2013000299 A1 WO2013000299 A1 WO 2013000299A1
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WO
WIPO (PCT)
Prior art keywords
timing relationship
feedback
feedback information
feedback timing
uplink
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/CN2012/073056
Other languages
English (en)
French (fr)
Inventor
林亚男
沈祖康
高雪娟
潘学明
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.)
China Academy of Telecommunications Technology CATT
Original Assignee
China Academy of Telecommunications Technology CATT
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 China Academy of Telecommunications Technology CATT filed Critical China Academy of Telecommunications Technology CATT
Priority to ES12803955.9T priority Critical patent/ES2675526T3/es
Priority to JP2014517402A priority patent/JP5916851B2/ja
Priority to US14/130,315 priority patent/US9455819B2/en
Priority to EP12803955.9A priority patent/EP2728781B1/en
Priority to KR1020147002477A priority patent/KR101715088B1/ko
Publication of WO2013000299A1 publication Critical patent/WO2013000299A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/14Two-way operation using the same type of signal, i.e. duplex
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18Automatic repetition systems, e.g. Van Duuren systems
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1829Arrangements specially adapted for the receiver end
    • H04L1/1854Scheduling and prioritising arrangements
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0044Allocation of payload; Allocation of data channels, e.g. PDSCH or PUSCH
    • H04L5/0046Determination of the number of bits transmitted on different sub-channels
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/02Arrangements for detecting or preventing errors in the information received by diversity reception
    • H04L1/04Arrangements for detecting or preventing errors in the information received by diversity reception using frequency diversity
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0001Arrangements for dividing the transmission path
    • H04L5/0003Two-dimensional division
    • H04L5/0005Time-frequency
    • H04L5/0007Time-frequency the frequencies being orthogonal, e.g. OFDM(A) or DMT
    • H04L5/001Time-frequency the frequencies being orthogonal, e.g. OFDM(A) or DMT the frequencies being arranged in component carriers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053Allocation of signalling, i.e. of overhead other than pilot signals
    • H04L5/0055Physical resource allocation for ACK/NACK

Definitions

  • the present invention relates to the field of wireless communication technologies, and in particular, to a method, system, and apparatus for transmitting and receiving feedback information. Background technique
  • the peak rate of the LTE-A system is greatly improved compared to the LTE system.
  • the LTE-A system requires downlink lGbps and uplink 500 Mbps. Obviously, the bandwidth of 20Mhz can no longer meet this demand.
  • a Carrier Aggregation (CA) technology is introduced, that is, a plurality of carriers that are consecutive or discontinuous are grouped together in the same cell, and the terminal is simultaneously served when needed to provide a solution.
  • CA Carrier Aggregation
  • the LTE-A system is a multi-carrier system.
  • each carrier does not exceed 20Mhz at the maximum.
  • the CA technology of LTE-A is shown in Figure 1B.
  • the base station can perform data transmission on the four carriers simultaneously with the terminal to improve system throughput.
  • the UE may feed back ACK/NACK (acknowledgement/non-acknowledgement) information corresponding to multiple downlink subframes in one uplink subframe, that is, the UE completes the downlink subframe n -k.
  • ACK/NACK acknowledgenowledgement/non-acknowledgement
  • the base station will feed back to the base station on the uplink subframe n whether the data in the downlink subframe needs to be retransmitted (ie,
  • the value of the set is related to the uplink and downlink configuration of the system and the specific subframe number. For details, see Table 1.
  • Table 1 feedback predetermined order a plurality of radio frames, i.e., if the wireless frame "in the last subframe of the radio frame" in the first sub + 1
  • the frame is ⁇ : +
  • Table 1 gives a case of each uplink subframe with only one radio frame as an example, where
  • LTE cells located in different Bands may use different TDD uplink/downlink subframe configurations.
  • Carrier 1 and carrier 2 are located in Band A
  • carrier 3 is located in Band B
  • cell 1 cell 2 are cells on carrier 1, carrier 2, and carrier 3, respectively.
  • the TDD uplink and downlink configurations of the cell 1 and the cell 2 are the same, and all are configured.
  • the TDD uplink/downlink subframe configuration of the cell 3 is different from that of the cell 1 and the cell 2, and is configured as 2. If the UE wants to use the three cells for carrier aggregation, multiple uplink and downlink configurations of the TDD may occur in all the aggregated cells of the UE.
  • Embodiments of the present invention provide a method, system, and apparatus for transmitting and receiving feedback information, which are used in different uses.
  • the carrier configured on the uplink and downlink of the TDD is aggregated and transmits feedback information.
  • the user equipment determines a dedicated feedback timing relationship
  • the user equipment is a user equipment that is aggregated by using carriers of different time division duplex TDD uplink/downlink configurations.
  • the network side device determines a dedicated feedback timing relationship; The network side device receives the feedback information from the user equipment on the primary carrier of the user equipment according to the determined dedicated feedback timing relationship, where the user equipment is a user equipment that uses different TDD uplink/downlink configuration carrier aggregation. .
  • An apparatus for sending feedback information is provided by the embodiment of the present invention, where the device is aggregated by using carriers of different TDD uplink/downlink configurations, and the device includes:
  • a first timing relationship determining module configured to determine a dedicated feedback timing relationship
  • a sending module configured to transmit, according to the determined dedicated feedback timing relationship, feedback information corresponding to the downlink data on the primary carrier.
  • a second timing relationship determining module that determines a dedicated feedback timing relationship
  • a receiving module configured to receive, according to the determined dedicated feedback timing relationship, feedback information from the user equipment on a primary carrier of the user equipment, where the user equipment is a user equipment that uses different TDD uplink/downlink configuration carrier aggregation .
  • the user equipment that is aggregated by using the carrier of the TDD uplink/downlink configuration is used to determine the exclusive feedback timing relationship, and the feedback information corresponding to the downlink data is transmitted on the primary carrier according to the determined exclusive feedback timing relationship;
  • the network side device is configured to determine a dedicated feedback timing relationship, and receive feedback information from the user equipment on a primary carrier of a carrier equipment that uses carrier aggregation of different TDD uplink/downlink configurations according to the determined dedicated feedback timing relationship.
  • the transmission information and the system performance after the aggregation of carriers configured with different TDD uplink and downlink are improved by transmitting feedback information after aggregation using carriers configured with different TDD uplink and downlink.
  • 1A is a schematic diagram of a single spectrum system in the background art
  • 1B is a schematic diagram of a spectrum aggregation system in the background art
  • 1C is a schematic diagram of different TDD uplink/downlink subframe configurations in different bands in the background art
  • FIG. 2 is a schematic structural diagram of a system for transmitting feedback information according to an embodiment of the present invention
  • FIG. 3 is a schematic structural diagram of a user equipment according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of a network side device according to an embodiment of the present invention.
  • FIG. 5 is a schematic flowchart of a method for sending feedback information according to an embodiment of the present invention
  • FIG. 6 is a schematic flowchart of a method for receiving feedback information according to an embodiment of the present invention
  • FIG. 7 is a schematic diagram of a first feedback information according to an embodiment of the present invention
  • FIG. 8 is a schematic diagram of a second feedback information according to an embodiment of the present invention.
  • FIG. 9 is a schematic diagram of a third feedback information according to an embodiment of the present invention.
  • FIG. 10 is a schematic diagram of a fourth type of feedback information according to an embodiment of the present invention.
  • FIG. 11 is a schematic diagram of a fifth feedback information according to an embodiment of the present invention.
  • FIG. 12 is a schematic diagram of a sixth type of feedback information according to an embodiment of the present invention.
  • FIG. 13 is a schematic diagram of a seventh type of feedback information according to an embodiment of the present invention. detailed description
  • the user equipment that is aggregated by using the carrier of the TDD uplink/downlink configuration transmits the feedback information corresponding to the downlink data on the primary carrier according to the exclusive feedback timing relationship.
  • the transmission information and the system performance after the aggregation of the carriers configured with different TDD uplinks and downlinks are improved, because the feedback information can be transmitted after the aggregation of the carriers configured with different TDDs is performed.
  • the carrier aggregated by the user equipment is divided into the primary carrier PCell and the secondary carrier SCell:
  • the primary carrier The terminal aggregates only one carrier of the multiple cells is defined as the primary carrier, and the primary carrier is selected by the base station, and is configured to the terminal by using RRC (Radio Resource Control) signaling. Only the PUCCH (Physical Layer Uplink Control Channel) is configured on the primary carrier.
  • RRC Radio Resource Control
  • Secondary carrier All carriers except the primary carrier in all cells aggregated by the terminal are primary carriers.
  • the dedicated feedback timing relationship is a transmission feedback timing relationship specifically used by user equipments that are aggregated using carriers of different TDD uplink/downlink configurations.
  • the user equipments described below are user equipments that are aggregated using carriers with different TDD uplink/downlink configurations unless otherwise specified. The description is not repeated.
  • the system for transmitting feedback information in the embodiment of the present invention includes: a user equipment 10 and a network side device 20 that are aggregated by using carriers of different TDD uplink/downlink configurations.
  • the user equipment 10 that uses the carrier of the different TDD uplink/downlink configuration to determine the exclusive feedback timing relationship, and transmits the feedback information corresponding to the downlink data on the primary carrier according to the determined dedicated feedback timing relationship;
  • the network side device 20 is configured to determine a dedicated feedback timing relationship, and receive feedback information from the user equipment on a primary carrier of a user equipment that uses different TDD uplink/downlink configuration carrier aggregation according to the determined dedicated feedback timing relationship.
  • the downlink data includes but is not limited to at least one of the following data:
  • Dynamically scheduled PDSCH Physical Downlink Shared Channel
  • semi-statically scheduled PDSCH and PDCCH (Physical Downlink Control Channel) indicating SPS (Semi-Persistent Schedule) resource release ).
  • the proprietary feedback timing relationship can satisfy at least one of the following conditions:
  • the uplink subframe corresponding to the feedback information corresponding to the downlink data determined according to the exclusive feedback timing relationship is a subset or a complete set of the uplink subframes in the primary carrier, that is, when the ACK/NACK feedback is performed according to the exclusive timing relationship, the corresponding The feedback subframe is at least one uplink subframe on the primary carrier.
  • the dedicated feedback timing relationship determined by the user equipment 10 may be configured by the network side, or may be pre-agreed; if the dedicated feedback timing relationship determined by the user equipment 10 is configured by the network side, the network side device 20 determines The dedicated feedback timing relationship is configured to the user equipment 10. If the exclusive feedback timing relationship determined by the user equipment 10 can be pre-agreed, the exclusive feedback timing relationship determined by the network side device 20 is also pre-agreed. The following are explained separately.
  • the dedicated feedback timing relationship is configured on the network side.
  • the network side device 20 configures a dedicated feedback timing relationship for the user equipment 10, and the user equipment 10 determines a dedicated feedback timing relationship configured on the network side;
  • the dedicated feedback timing relationship configured on the network side is the same as the feedback timing relationship corresponding to the primary carrier (that is, the network side configures the feedback timing relationship corresponding to the primary carrier as the dedicated feedback timing relationship to the user equipment 10); or
  • the uplink subframe in the TDD uplink/downlink configuration corresponding to the dedicated feedback timing relationship configured on the network side is any carrier aggregated by the user equipment (any carrier here may be any carrier or any multiple carrier) A subset or a complete set.
  • Manner 2 The dedicated feedback timing relationship is pre-agreed, that is, pre-configured in the user equipment 10 by the protocol. Specifically, the user equipment 10 determines a pre-agreed exclusive feedback timing relationship, and the network side device 20 determines a pre-agreed exclusive feedback timing relationship;
  • the pre-agreed dedicated feedback timing relationship is the same as the feedback timing relationship corresponding to the primary carrier (ie, the user equipment 10 uses the feedback timing relationship corresponding to the primary carrier as the exclusive feedback timing relationship); or
  • the TDD uplink/downlink configuration corresponding to the feedback timing relationship corresponding to the primary carrier is 0 or 1 or 2 or 6 (see Table 1).
  • the pre-agreed configuration of the dedicated feedback timing relationship is the feedback timing relationship corresponding to the TDD uplink/downlink configuration 2
  • the TDD uplink/downlink configuration corresponding to the feedback timing relationship of the primary carrier is 3 or 4 (see Table 1)
  • the agreed exclusive feedback timing relationship is the feedback timing relationship corresponding to the TDD uplink/downlink configuration 4.
  • both the network side device 20 and the user equipment 10 should use the same dedicated timing relationship, which can be specifically notified by protocol agreement or network side.
  • the user equipment 10 may determine the number of feedback information bits before transmitting the feedback information, and before the network side device 20 receives the feedback information.
  • the ACK/NACK codebook size is determined based on the exclusive ACK/NACK feedback timing relationship.
  • the user equipment 10 and the network side device 20 may determine the number of feedback information bits according to Equation 1 or Equation 2:
  • N Mx(C + C 2TB ) ... Equation 1; where N is the number of feedback information bits, and M is the number of subframes that need to transmit feedback information in the same uplink subframe determined according to the exclusive feedback timing relationship; the polymerization number of carriers; C TM downlink configuration using a multiple codeword transmission mode is not configured for spatial feedback information combined number of carriers.
  • N ⁇ M x DL xTB x ... - Formula 2;
  • N is the number of feedback information bits
  • M is the number of downlink subframes in the M subframes that need to transmit feedback information in the same uplink subframe according to the exclusive feedback timing relationship
  • C is aggregated.
  • X is a carrier aggregation Carrier carriers, the L X ⁇ ⁇ each carrier is obtained by adding ⁇ .
  • the user equipment can also determine specific feedback information before sending the feedback information. Since the feedback information on different carriers must be transmitted on the primary carrier, and there are at least two TDD uplink/downlink configurations on different carriers, for some subframes, there may be a dedicated feedback timing relationship corresponding to the downlink and the carrier corresponding to The uplink, or dedicated feedback timing relationship corresponds to the uplink and the carrier corresponds to the downlink. A better way to handle these subframes is:
  • the TDD uplink/downlink configuration corresponding to the dedicated feedback timing relationship is different, and the dedicated feedback timing relationship corresponds to the downlink and the carrier corresponds to the uplink first specific subframe, and the user equipment is the first.
  • Sending feedback information in a specific subframe In the corresponding TDD uplink/downlink configuration, the TDD uplink/downlink configuration corresponding to the dedicated feedback timing relationship is different, and the dedicated feedback timing relationship corresponds to the uplink and the carrier corresponds to the downlink second specific subframe, where the user equipment targets The feedback information corresponding to the second specific subframe is subjected to specific processing.
  • the user equipment performs specific processing on the feedback information corresponding to the second specific subframe, including: for the second specific subframe, the user equipment may not send feedback information to the second specific subframe; or the second specific subframe
  • the corresponding feedback information is combined with the feedback information of the at least one downlink subframe that is located before or after the second specific subframe, and occupies the position of the feedback information of the at least one downlink subframe that is the most recent before or after the second specific subframe. send.
  • the network side device in the embodiment of the present invention may be a station (such as a macro base station, a home base station, etc.), an RN (relay) device, or other network side devices.
  • a station such as a macro base station, a home base station, etc.
  • RN relay
  • Embodiment 1 As shown in FIG. 7, the feedback timing relationship corresponding to the TDD uplink/downlink configuration 2 is used as a dedicated feedback timing relationship.
  • the UE aggregates two carriers of TDD uplink and downlink configuration 1 and 2.
  • the UE uses Equation 1 to determine the number of ACK/NACK bits to be fed back according to the exclusive timing relationship. For subframes 3 and 8 in band1, although it is an uplink subframe, feedback information is also generated correspondingly to ensure the feedback information sequence. The other bit positions are correct.
  • the feedback information corresponding to the uplink subframe is NACK information, but an ACK can also be used.
  • the feedback information corresponding to the uplink subframe is an example of the NACK information, and the manner of using the ACK is similar to the method of using the NACK, and details are not described herein.
  • the second embodiment uses the feedback timing relationship corresponding to the TDD uplink/downlink configuration 1 as the exclusive feedback timing relationship.
  • the UE aggregates two carriers of TDD uplink and downlink configuration 1 and 2.
  • the UE determines the number of ACK/NACK bits to be fed back according to the exclusive timing relationship. There are two ways to deal with the second embodiment:
  • Manner 1 As shown in Figure 8, no ACK/NACK information is fed back for subframe 3 and subframe 8 in band2.
  • Manner 2 As shown in FIG. 9, for subframe 3 and subframe 8 in band2, the adjacent downlink subframes are ACK/NACK combined and then fed back, and the combined ACK/NACK information occupies adjacent subframes ( That is, the ACK/NACK information position of subframe 4 and subframe 9).
  • Embodiment 3 The feedback timing relationship corresponding to the TDD uplink/downlink configuration 1 is used as a dedicated feedback timing relationship.
  • the UE aggregates two carriers of TDD uplink/downlink configuration 1 and 2, but the different bands are not synchronized, that is, the corresponding subframe numbers are different.
  • the UE performs ACK/NACK feedback according to the exclusive timing relationship, and determines the number of ACK/NACK bits to be fed back.
  • Manner 1 as shown in FIG.
  • subframe 2 in Band2 is an uplink subframe but correspondingly generates NACK information; Using Equation 2, subframe 2 in band2 may not generate feedback information.
  • Equation 1 As shown in FIG. 12 and FIG. 13 , Equation 1 is used, and subframes 0 and 1 in the band 2 are combined with the connected uplink subframes by ACK/NACK, and then feedback is performed, and the uplink subframes are associated with each other.
  • the downlink subframe in the timing relationship, in which the adjacent uplink subframe does not actually participate in the ACK/NACK merging, but the ACK/NACK information corresponding to the subframe 0 and the subframe 1 may be combined.
  • the embodiment of the present invention further provides a user equipment, a network side device, a method for sending feedback information, and a method for receiving feedback information, and a system for solving the problem and transmitting a feedback signal by using the device and the method Similarly, the implementation of these devices and methods can be seen in the implementation of the system, and the details are not repeated here.
  • the user equipment in the embodiment of the present invention performs aggregation by using carriers of different TDD uplink/downlink configurations, and specifically includes: a first timing relationship determining module 300 and a sending module 310.
  • the first timing relationship determining module 300 is configured to determine a dedicated feedback timing relationship
  • the sending module 310 is configured to transmit, according to the determined dedicated feedback timing relationship, feedback information corresponding to the downlink data on the primary carrier.
  • the first timing relationship determining module 300 determines a dedicated feedback timing relationship configured by the network side.
  • the network side configuration uses a feedback timing relationship corresponding to the primary carrier as a dedicated feedback timing relationship, or a dedicated feedback timing relationship configured on the network side.
  • the uplink subframe in the TDD uplink/downlink configuration is a subset or a complete set of uplink subframes in any carrier aggregated by the user equipment.
  • the first timing relationship determining module 300 determines a pre-agreed exclusive feedback timing relationship
  • the feedback timing relationship corresponding to the primary carrier is pre-agreed as the exclusive feedback timing relationship, or the TDD uplink/downlink configuration corresponding to the feedback timing relationship corresponding to the primary carrier is 0 or 1 or 2 or 6
  • the feedback timing relationship corresponding to the downlink configuration 2 is used as the exclusive feedback timing relationship.
  • the first timing relationship determining module 300 determines the number of feedback information bits according to Equation 1 or Equation 2.
  • the first timing relationship determining module 300 in the corresponding TDD uplink/downlink configuration and the TDD uplink/downlink configuration corresponding to the dedicated feedback timing relationship, corresponds to the downlink and the carrier corresponding to the uplink for the dedicated feedback timing relationship.
  • the second specific subframe transmits feedback information to the second specific subframe.
  • the first timing relationship determining module 300 in the corresponding TDD uplink/downlink configuration and the TDD uplink/downlink configuration corresponding to the dedicated feedback timing relationship, corresponds to the uplink of the dedicated feedback timing relationship and the downlink corresponding to the carrier.
  • the second specific subframe performs specific processing on the feedback information corresponding to the second specific subframe.
  • the method is specifically configured to: not send feedback information to the second specific subframe; or send the second specific subframe
  • the corresponding feedback information is combined with the feedback information of the at least one downlink subframe that is located before or after the second specific subframe, and occupies the position of the feedback information of the at least one downlink subframe that is the most recent before or after the second specific subframe. send.
  • the network side device of the embodiment of the present invention includes: a second timing relationship determining module 400 and a receiving module 410.
  • the second timing relationship determining module 400 determines the exclusive feedback timing relationship
  • the receiving module 410 is configured to receive, according to the determined dedicated feedback timing relationship, feedback information from the user equipment on a primary carrier of the user equipment that uses different TDD uplink/downlink configurations.
  • the second timing relationship determining module 400 configures a dedicated feedback timing relationship for the user equipment
  • the configured feedback timing relationship is the same as the feedback timing relationship of the primary carrier, or the uplink subframe in the TDD uplink/downlink configuration corresponding to the configured dedicated feedback timing relationship is the subframe of the uplink subframe in any carrier aggregated by the user equipment. set.
  • the second timing relationship determining module 400 determines a pre-agreed exclusive feedback timing relationship
  • the feedback timing relationship corresponding to the primary carrier is pre-agreed as the exclusive feedback timing relationship, or the TDD uplink/downlink configuration corresponding to the feedback timing relationship corresponding to the primary carrier is 0 or 1 or 2 or 6 in advance, and the TDD is used/ The feedback timing relationship corresponding to the downlink configuration 2 is used as the exclusive feedback timing relationship.
  • the TDD uplink/downlink configuration corresponding to the feedback timing relationship of the primary carrier is 3 or 4
  • the feedback timing relationship corresponding to the TDD uplink/downlink configuration 4 is used as the exclusive feedback. Timing relationship.
  • the second timing relationship determining module 400 determines the number of feedback information bits according to Equation 1 or Equation 2.
  • the method for sending feedback information in the embodiment of the present invention includes the following steps:
  • Step 501 Determine, by using user equipments that are aggregated by carriers of different TDD uplink/downlink configurations, determine a dedicated feedback timing relationship;
  • Step 502 The user equipment that is aggregated by using carriers of different TDD uplink/downlink configurations according to the determined exclusive reverse In the feed timing relationship, the feedback information corresponding to the downlink data is transmitted on the primary carrier.
  • the proprietary feedback timing relationship can satisfy at least one of the following conditions:
  • the uplink subframe corresponding to the feedback information corresponding to the downlink data determined according to the exclusive feedback timing relationship is a subset or a complete set of the uplink subframes in the primary carrier, that is, when the ACK/NACK feedback is performed according to the exclusive timing relationship, the corresponding The feedback subframe is at least one uplink subframe on the primary carrier.
  • the dedicated feedback timing relationship determined by the user equipment may be configured on the network side or may be pre-configured. The following description will be respectively made.
  • the dedicated feedback timing relationship is configured on the network side.
  • the user equipment determines a dedicated feedback timing relationship configured on the network side
  • the network side configures the feedback timing relationship corresponding to the primary carrier as the dedicated feedback timing relationship; or the uplink subframe in the TDD uplink/downlink configuration corresponding to the dedicated feedback timing relationship configured on the network side is any carrier aggregated by the user equipment (any of the above).
  • the carrier may be any one of the carriers, or may be a subset or a complete set of uplink subframes in any of a plurality of carriers.
  • the user equipment determines a pre-agreed exclusive feedback timing relationship
  • the feedback timing relationship corresponding to the primary carrier is pre-agreed as the dedicated feedback timing relationship; or the TDD uplink/downlink configuration corresponding to the feedback timing relationship corresponding to the primary carrier is 0 or 1 or 2 or 6 (see Table 1).
  • the feedback timing relationship corresponding to the TDD uplink/downlink configuration 2 is used as the dedicated feedback timing relationship.
  • the TDD uplink/downlink configuration corresponding to the feedback timing relationship of the primary carrier is 3 or 4 (see Table 1)
  • the TDD uplink/downlink is used.
  • the feedback timing relationship corresponding to configuration 4 is used as a dedicated feedback timing relationship.
  • the network side device and the user equipment should use the same exclusive timing relationship, which can be notified by agreement or network side.
  • the user equipment may also determine the number of feedback information bits.
  • the ACK/NACK codebook size is determined based on the exclusive ACK/NACK feedback timing relationship.
  • the user equipment may determine the number of feedback information bits according to Equation 1 or Equation 2.
  • the user equipment and the network side device need to use the same formula to determine the number of feedback information bits.
  • the exclusive feedback timing relationship corresponds to downlink and the carrier corresponds to uplink
  • the dedicated feedback timing relationship corresponds to uplink and the carrier corresponds to downlink.
  • a better way to handle these sub-frames is: Before the step 502, in the corresponding TDD uplink/downlink configuration, the TDD uplink/downlink configuration corresponding to the dedicated feedback timing relationship is different, and the dedicated feedback timing relationship corresponds to the downlink and the carrier corresponds to the uplink first specific subframe, the user The device sends feedback information to the first specific subframe.
  • the TDD uplink/downlink configuration corresponding to the dedicated feedback timing relationship is different, and the dedicated feedback timing relationship corresponds to the uplink and the carrier corresponds to the downlink second specific subframe, and the user equipment is configured to The feedback information corresponding to the second specific subframe is subjected to specific processing.
  • the user equipment performs specific processing on the feedback information corresponding to the second specific subframe, including: for the second specific subframe, the user equipment may not send feedback information to the second specific subframe; or the second specific subframe
  • the corresponding feedback information is combined with the feedback information of the at least one downlink subframe that is located before or after the second specific subframe, and occupies the position of the feedback information of the at least one downlink subframe that is the most recent before or after the second specific subframe. send.
  • the method for receiving feedback information in the embodiment of the present invention includes the following steps:
  • Step 601 The network side device determines a dedicated feedback timing relationship.
  • Step 602 The network side device receives, according to the determined exclusive feedback timing relationship, feedback information from the user equipment on a primary carrier of the user equipment that uses carrier aggregation of different TDD uplink/downlink configurations.
  • the proprietary feedback timing relationship can satisfy at least one of the following conditions:
  • the uplink subframe corresponding to the feedback information corresponding to the downlink data determined according to the exclusive feedback timing relationship is a subset or a complete set of the uplink subframes in the primary carrier, that is, when the ACK/NACK feedback is performed according to the exclusive timing relationship, the corresponding The feedback subframe is at least one uplink subframe on the primary carrier.
  • the dedicated feedback timing relationship determined by the network side device may be configured to the user equipment, and may also be pre-configured. The following description will be respectively made.
  • the dedicated feedback timing relationship is configured on the network side.
  • the network side device configures a dedicated feedback timing relationship for the user equipment
  • the dedicated feedback timing relationship configured on the network side is the same as the feedback timing relationship corresponding to the primary carrier; or the uplink subframe in the TDD uplink/downlink configuration corresponding to the dedicated feedback timing relationship configured on the network side is an uplink of any carrier aggregated by the user equipment.
  • the network side device determines a pre-configured exclusive feedback timing relationship
  • the pre-agreed use of the feedback timing relationship corresponding to the primary carrier is used as the dedicated feedback timing relationship; or the TDD uplink/downlink configuration corresponding to the feedback timing relationship corresponding to the primary carrier is 0 or 1 or 2 or 6 (see As shown in Table 1), the feedback timing relationship corresponding to TDD uplink/downlink configuration 2 is used as the exclusive feedback timing relationship.
  • the TDD uplink/downlink configuration corresponding to the feedback timing relationship of the primary carrier is 3 or 4 (see Table 1)
  • the feedback timing relationship corresponding to the TDD uplink/downlink configuration 4 is used as the exclusive feedback timing relationship.
  • the network side device and the user equipment should use the same exclusive timing relationship, which can be notified by agreement or network side.
  • the network side device may also determine the number of feedback information bits.
  • the network side device may determine the number of feedback information bits according to Equation 1 or Equation 2.
  • FIG. 5 and FIG. 6 can synthesize a process to form a method for transmitting feedback information, that is, performing steps first.
  • step 502 is performed, and step 602 is finally performed.
  • Step 501 and step 601 are not in a certain order. If the exclusive feedback timing relationship is configured on the network side, step 601 is performed first and then step 501 is performed. If the exclusive feedback timing relationship is pre-configured, step 501 may be performed first. Step 601 is performed, and step 601 is performed first, and then step 501 is performed, and steps may be performed simultaneously.
  • embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the present invention can be embodied in the form of a computer program product embodied on one or more computer-usable storage interfaces (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer usable program code.
  • computer-usable storage interfaces including but not limited to disk storage, CD-ROM, optical storage, etc.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing, thereby causing a computer or other
  • the instructions executed on the programmable device provide steps for implementing the functions specified in one or more blocks of the flowchart or in a flow or block of the flowchart.
  • the transmission information and the system performance after the aggregation of carriers configured with different TDD uplink and downlink are improved by transmitting feedback information after aggregation using carriers configured with different TDD uplink and downlink.

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Abstract

本发明实施例涉及无线通信技术领域,特别涉及一种发送和接收反馈信息的方法、系统及装置,用以在使用不同TDD上下行配置的载波进行聚合后传输反馈信息。本发明实施例的方法包括:使用不同TDD上/下行配置的载波进行聚合的用户设备,确定专属反馈定时关系;所述用户设备根据确定的专属反馈定时关系,在主载波上传输下行数据对应的反馈信息。由于能求使用不同TDD上下行配置的载波进行聚合后传输反馈信息,从而提高求使用不同TDD上下行配置的载波进行聚合后的传输效率和系统性能。

Description

一种发送和接收反馈信息的方法、 系统及装置 本申请要求在 2011年 6月 30日提交中国专利局、 申请号为 201110183359.3、 发明名称 为"一种发送和接收反馈信息的方法、 系统及装置"的中国专利申请的优先权, 其全部内容 通过引用结合在本申请中。 技术领域
本发明涉及无线通信技术领域, 特别涉及一种发送和接收反馈信息的方法、 系统及装 置。 背景技术
目前的 LTE ( Long Term Evolution, 长期演进) 系统, 一个小区中只能有一个载波, 并且最大带宽为 20Mhz, 如图 1A所示。
对于 LTE- A ( LTE- Advanced, 增强长期演进) 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 lGbps, 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, 引入 CA ( Carrier Aggregation, 载波聚合)技术, 即同一小区中, 将连续或不连续的多个载波集中在一起, 在需要时同时为终端服务, 以提供所需的速率, 因此, LTE-A系统是一个多载波系统。 为 了保证 LTE-A系统的终端能在每一个聚合的载波下工作, 每一个载波最大不超过 20Mhz。 LTE-A的 CA技术, 如图 1B所示。
图 1B中的 LTE-A系统中, 聚合了 4个载波。 基站可以同时在 4个载波上和终端进行 数据传输, 以提高系统吞吐量。
对于 LTE TDD系统, UE (用户设备)可能在一个上行子帧中反馈多个下行子帧所对 应的 ACK/NACK (确认 /不确认)信息, 即 UE在完成了对下行子帧 n— k上的数据的 解调、译码后,将在上行子帧 n上向基站反馈该下行子帧上的数据是否需要重传的信令(即
ACK/NACK ), k e K , 集合 的取值与系统的上下行配置及具体的子帧编号有关, 具体 可以参见表 1。
Figure imgf000002_0001
1 - - 7, 6 4 - - - 7, 6 4 -
2 - - 8, 7, 6, 4 - - - - 8, 7, 6, 4 - -
3 - - 11, 7, 6 6, 5 5, 4 - - - - -
4 - - 12, 11, 8, 7 7, 6, 5, 4 - - - - - -
13 , 12, 11 , 9, 8,
5 - 7, 6, 5 , 4
6 - - 7 7 5 - - 7 7 - 表 1 下行传输的上行方向反馈的规定 多个无线帧顺序排列, 即若无线帧"中最后一个子帧为 则无线帧" + 1中第一个子 帧为^ : + 表 1 只以一个无线帧为例给出了每个上行子帧所对于的 的情况, 其中
"— < 0则表示前一无线帧中的下行子帧。
LTE Rel-11或以后版本的系统中, 为了避免对其他 TDD ( Time division duplex, 时分 双工)系统的千扰, 位于不同 Band (频带)的 LTE小区可能使用不同的 TDD上 /下行子帧 配置, 如图 1C所示。 其中载波 1和载波 2位于 Band A, 载波 3位于 Band B, 小区 1、 小 区 2和小区 3分别是载波 1、 载波 2和载波 3上的小区。 小区 1和小区 2的 TDD上下行配 置相同, 均为配置 1 , 小区 3的 TDD上 /下行子帧配置与小区 1和小区 2不同, 为配置 2。 如果 UE希望利用这三个小区进行载波聚合, 那么就会出现 UE所有聚合小区中出现多种 TDD上下行配置的情况。
目前, 还没有一种针对使用不同 TDD上下行配置的载波聚合后传输反馈信息的方案。 发明内容
本发明实施例提供一种发送和接收反馈信息的方法、 系统及装置, 用以在使用不同
TDD上下行配置的载波进行聚合后传输反馈信息。
本发明实施例提供的一种发送反馈信息的方法, 包括:
用户设备确定专属反馈定时关系;
所述用户设备根据确定的专属反馈定时关系, 在主载波上传输下行数据对应的反馈信 息;
其中, 所述用户设备, 是使用不同时分双工 TDD上 /下行配置的载波进行聚合的用户 设备。
本发明实施例提供的一种接收反馈信息的方法, 包括:
网络侧设备确定专属反馈定时关系; 所述网络侧设备根据确定的专属反馈定时关系, 在用户设备的主载波上接收来自所述 用户设备的反馈信息, 其中, 所述用户设备为使用不同 TDD上 /下行配置的载波聚合的用 户设备。
本发明实施例提供的一种发送反馈信息的设备, 该设备使用不同 TDD上 /下行配置的 载波进行聚合, 该设备包括:
第一定时关系确定模块, 用于确定专属反馈定时关系;
发送模块, 用于根据确定的专属反馈定时关系, 在主载波上传输下行数据对应的反馈 信息。
本发明实施例提供的一种接收反馈信息的设备, 包括:
第二定时关系确定模块, 确定专属反馈定时关系;
接收模块, 用于根据确定的专属反馈定时关系, 在用户设备的主载波上接收来自所述 用户设备的反馈信息, 其中, 所述用户设备为使用不同 TDD上 /下行配置的载波聚合的用 户设备。
本发明实施例提供的一种传输反馈信息的系统, 包括:
使用不同 TDD上 /下行配置的载波进行聚合的用户设备,用于确定专属反馈定时关系, 根据确定的专属反馈定时关系, 在主载波上传输下行数据对应的反馈信息;
网络侧设备, 用于确定专属反馈定时关系, 根据确定的专属反馈定时关系, 在使用不 同 TDD 上 /下行配置的载波聚合的用户设备的主载波上接收来自所述用户设备的反馈信 息。
由于能够在使用不同 TDD上下行配置的载波进行聚合后传输反馈信息, 从而提高了 在使用不同 TDD上下行配置的载波进行聚合后的传输效率和系统性能。 附图说明
图 1A为背景技术中单频谱系统示意图;
图 1B为背景技术中频谱聚合系统示意图;
图 1C为背景技术中不同 band使用不同 TDD上 /下行子帧配置示意图;
图 2为本发明实施例传输反馈信息的系统结构示意图;
图 3为本发明实施例用户设备的结构示意图;
图 4为本发明实施例网络侧设备的结构示意图;
图 5为本发明实施例发送反馈信息的方法流程示意图;
图 6为本发明实施例接收反馈信息的方法流程示意图; 图 7为本发明实施例第一种反馈信息示意图;
图 8为本发明实施例第二种反馈信息示意图;
图 9为本发明实施例第三种反馈信息示意图;
图 10为本发明实施例第四种反馈信息示意图;
图 11为本发明实施例第五种反馈信息示意图;
图 12为本发明实施例第六种反馈信息示意图;
图 13为本发明实施例第七种反馈信息示意图。 具体实施方式
本发明实施例使用不同 TDD上 /下行配置的载波进行聚合的用户设备根据专属反馈定 时关系, 在主载波上传输下行数据对应的反馈信息。 由于能够在使用不同 TDD上下行配 置的载波进行聚合后传输反馈信息, 从而提高了在使用不同 TDD上下行配置的载波进行 聚合后的传输效率和系统性能。
用户设备聚合的载波分为主载波 PCell和辅载波 SCell:
主载波: 终端聚合多个小区中只有一个载波被定义为主载波, 主载波由基站选择, 并 通过 RRC ( Radio Resource Control, 无线资源控制)信令配置给终端。 只有主载波上配置 有 PUCCH ( Physical Uplink Control Channel , 物理层上行控制信道);
辅载波: 终端聚合的所有小区中除了主载波之外的载波都是主载波。
其中, 专属反馈定时关系是专门针对使用不同 TDD上 /下行配置的载波进行聚合的用 户设备所使用的发送反馈定时关系。
下面介绍的用户设备除非特殊说明,否则都是使用不同 TDD上 /下行配置的载波进行 聚合的用户设备, 不再重复说明。
在下面的说明过程中, 先从网络侧和用户设备侧的配合实施进行说明, 最后分别从网 络侧与用户设备侧的实施进行说明, 但这并不意味着二者必须配合实施, 实际上, 当网络 侧与用户设备侧分开实施时, 也解决了分别在网络侧、 用户设备侧所存在的问题, 只是二 者结合使用时, 会获得更好的技术效果。
下面结合说明书附图对本发明实施例作进一步详细描述。
如图 2所示, 本发明实施例传输反馈信息的系统包括: 使用不同 TDD上 /下行配置的 载波进行聚合的用户设备 10和网络侧设备 20。
使用不同 TDD上 /下行配置的载波进行聚合的用户设备 10 , 用于确定专属反馈定时关 系, 根据确定的专属反馈定时关系, 在主载波上传输下行数据对应的反馈信息; 网络侧设备 20, 用于确定专属反馈定时关系, 根据确定的专属反馈定时关系, 在使用 不同 TDD上 /下行配置的载波聚合的用户设备的主载波上接收来自用户设备的反馈信息。
其中, 下行数据包括但不限于下列数据中的至少一种:
动态调度的 PDSCH ( Physical Downlink Shared Channel, 物理下行链路共享信道)、 半 静态调度的 PDSCH和指示 SPS( Semi-Persistent Schedule,半持续调度)资源释放的 PDCCH ( Physical Downlink Control Channel , 物理下行控制信道)。
较佳地, 专属反馈定时关系可以满足下列条件中的至少一种:
( 1 )、 专属反馈定时关系 Rel-8 TDD系统所支持的反馈定时关系中的一种, 比如表 1 中的一种, 具体可以参见协议 TS36.213
( 2 )、 根据专属反馈定时关系确定的承载下行数据对应的反馈信息的上行子帧是主载 波中上行子帧的一个子集或全集, 即按照专属定时关系进行 ACK/NACK反馈时, 其对应 的反馈子帧是主载波上的至少一个上行子帧。
较佳地, 用户设备 10确定的专属反馈定时关系可以是网络侧配置的, 也可以是预先 约定的; 如果用户设备 10确定的专属反馈定时关系是网络侧配置的, 则网络侧设备 20确 定的专属反馈定时关系是配置给用户设备 10的, 如果用户设备 10确定的专属反馈定时关 系可以是预先约定的, 则网络侧设备 20确定的专属反馈定时关系也是预先约定的。 下面 分别进行说明。
方式一、 专属反馈定时关系是网络侧配置的。
具体的, 网络侧设备 20为用户设备 10配置专属反馈定时关系, 用户设备 10确定网 络侧配置的专属反馈定时关系;
其中, 网络侧配置的专属反馈定时关系与主载波对应的反馈定时关系相同 (即网络侧 将主载波对应的反馈定时关系作为专属反馈定时关系配置给用户设备 10 ); 或
网络侧配置的专属反馈定时关系对应的 TDD上 /下行配置中的上行子帧是用户设备聚 合的任意载波(这里的任意载波可以是任意一个载波, 也可以是任意多个载波) 中上行子 帧的子集或全集。
方式二、 专属反馈定时关系是预先约定的, 即通过协议预先配置在用户设备 10中。 具体的, 用户设备 10确定预先约定的专属反馈定时关系, 以及网络侧设备 20确定预 先约定的专属反馈定时关系;
其中, 预先约定的专属反馈定时关系与主载波对应的反馈定时关系相同 (即用户设备 10将主载波对应的反馈定时关系作为专属反馈定时关系); 或
在主载波对应的反馈定时关系对应的 TDD上 /下行配置是 0或 1或 2或 6 (参见表 1 ) 时, 预先约定配置的专属反馈定时关系是 TDD上 /下行配置 2对应的反馈定时关系, 在主 载波对应的反馈定时关系对应的 TDD上 /下行配置是 3或 4 (参见表 1 )时, 预先约定的专 属反馈定时关系是 TDD上 /下行配置 4对应的反馈定时关系。
需要说明的是, 不管釆用哪种方式, 网络侧设备 20和用户设备 10都应该使用相同的 专属定时关系, 具体可以通过协议约定或网络侧通知釆用哪种方式。
在实施中, 用户设备 10在发送反馈信息之前, 以及网络侧设备 20在接收反馈信息之 前还可以确定反馈信息比特数。
较佳地,对于传输下行数据所对应的 ACK/NACK信息, ACK/NACK codebook大小将 基于专属的 ACK/NACK反馈定时关系确定。
具体的,用户设备 10和网络侧设备 20可以根据公式一或公式二确定反馈信息比特数:
N = Mx(C + C2TB) … 公式一; 其中, N为反馈信息比特数, M为按照专属的反馈定时关系确定的需要在同一个上 行子帧中传输反馈信息的子帧数量; c为聚合的载波数量; C™为下行配置使用多码字 传输模式且未配置进行反馈信息空间合并的载波数量。
C-1
N = ^Mx DL xTBx…―公式二;
X=Q
其中, N为反馈信息比特数, M 为载波 X上, 按照专属的反馈定时关系确定的需要 在同一个上行子帧中传输反馈信息的 M个子帧中是下行子帧的数量; C为聚合的载波 数量; 若载波 X下行配置使用单码字传输模式或配置进行反馈信息空间合并, 则7 ^ =1 , 否则^ ¾ =2。 载波 X是聚合载波中的一个载波, 将每个载波的 L X ΤΒΧ相加就得到 Ν。
较佳地, 用户设备发送反馈信息之前还可以确定具体的反馈信息。 由于不同载波上的 反馈信息都要在主载波上传输, 而不同载波上至少有两种 TDD上 /下行配置, 所以对于某 些子帧, 有可能出现专属反馈定时关系对应为下行而载波对应为上行, 或专属反馈定时关 系对应为上行而载波对应为下行。 对于这些子帧一种较佳的处理方式是:
在对应的 TDD上 /下行配置与专属反馈定时关系对应的 TDD上 /下行配置不同的载波 中, 对于专属反馈定时关系对应为下行而载波对应为上行的第一特定子帧, 用户设备对第 一特定子帧发送反馈信息; 在对应的 TDD上 /下行配置与专属反馈定时关系对应的 TDD上 /下行配置不同的载波 中, 对于专属反馈定时关系对应为上行而载波对应为下行的第二特定子帧, 所述用户设备 针对所述第二特定子帧对应的反馈信息进行特定处理。
所述用户设备针对所述第二特定子帧对应的反馈信息进行特定处理, 包括: 针对第二 特定子帧, 用户设备可以对第二特定子帧不发送反馈信息; 或将第二特定子帧对应的反馈 信息与位于第二特定子帧之前或之后最近的至少一个下行子帧的反馈信息进行合并, 并占 用第二特定子帧之前或之后最近的至少一个下行子帧的反馈信息的位置进行发送。
其中, 本发明实施例的网络侧设备可以^ &站(比如宏基站、 家庭基站等), 也可以 是 RN (中继)设备, 还可以是其它网络侧设备。
下面列举几个例子对第一特定子帧和第二特定子帧的处理方式进行详细说明。
实施例一、 如图 7所示, 使用 TDD上 /下行配置 2所对应的反馈定时关系作为专属反 馈定时关系。 UE聚合了 TDD上下行配置 1和 2两种载波。 UE釆用公式一, 按照专属定 时关系确定反馈的 ACK/NACK比特数目,其中对于 bandl内的子帧 3和 8, 虽然是上行子 帧但是也要对应产生反馈信息, 以保证反馈信息序列中的其他比特位置正确。
由于上行子帧无对应的反馈信息,较佳地方式是上行子帧对应的反馈信息是 NACK信 息, 但是约定用 ACK也可以。 后续的实施例中以上行子帧对应的反馈信息是 NACK信息 为例进行说明, 釆用 ACK的方式与釆用 NACK的方式类似, 不再赘述。
以图 7为例, 如果釆用公式二确定反馈信息比特数, 由于每个载波分别计算后求和, 则 bandl内的子帧 3和 8可以不产生反馈信息。
实施例二、 使用 TDD上 /下行配置 1所对应的反馈定时关系作为专属反馈定时关系。
UE聚合了 TDD上下行配置 1和 2两种载波。 UE按照专属定时关系确定反馈的 ACK/NACK 比特数目。 其中, 针对实施例二有两种处理方式:
方式一、 如图 8所示, 对于 band2内的子帧 3和子帧 8不反馈 ACK/NACK信息。 方式二、 如图 9 所示, 对于 band2 内的子帧 3 和子帧 8 将于相邻的下行子帧进行 ACK/NACK合并后再进行反馈, 合并后的 ACK/NACK信息占用相邻子帧(即子帧 4和子 帧 9 ) 的 ACK/NACK信息位置。
对于实施例二, 釆用公式一和釆用公式二效果相同。
实施例三、 使用 TDD上 /下行配置 1所对应的反馈定时关系作为专属反馈定时关系。 UE聚合了 TDD上 /下行配置 1和 2两种载波, 但不同 band上并不是同步的, 即对应的子 帧编号不同。 UE按照专属定时关系进行 ACK/NACK反馈, 并确定反馈的 ACK/NACK比 特数目, 其中, 针对实施例三有两种处理方式: 方式一、 如图 10所示, 对于 band2内的子帧 0和 1不反馈 ACK/NACK信息; 若釆用 公式一, Band2内子帧 2虽然是上行子帧但是也要对应的产生 NACK信息;若釆用公式二, 则 band2内的子帧 2可以不产生反馈信息。
方式二、 如图 11 所示, 对于 band2 内的子帧 0和子帧 1 将于相连的下行子帧进行 ACK/NACK合并后再进行反馈, 合并后的 ACK/NACK信息占用相邻子帧(即子帧 9和子 帧 4 )的 ACK/NACK信息位置; 若釆用公式一, Band2内子帧 2虽然是上行子帧但是也要 对应的产生 NACK信息; 若釆用公式二, 则 band2内的子帧 2可以不产生反馈信息。
方式三、 如图 12和图 13所示, 釆用公式一, 对于 band2内的子帧 0和 1将与相连的 上行子帧进行 ACK/NACK合并后再进行反馈, 且该上行子帧对应专属定时关系中的下行 子帧, 此时相邻的上行子帧实际不参与 ACK/NACK合并, 而是将子帧 0和子帧 1对应的 ACK/NACK信息合并即可。
需要说明的是, 上面的例子中列举两个载波, 以及釆用的是 TDD上 /下行配置 1和 2, 其他的载波数量以及其他的配置方式与上面的例子类似, 在此不再赘述。
基于同一发明构思, 本发明实施例中还提供了一种用户设备、 网络侧设备、 发送反馈 信息的方法及接收反馈信息的方法, 由于这些设备和方法解决问题的原理与传输反馈信 , 的系统相似, 因此这些设备和方法的实施可以参见系统的实施, 重复之处不再赘述。
如图 3所示, 本发明实施例的用户设备使用不同 TDD上 /下行配置的载波进行聚合, 具体包括: 第一定时关系确定模块 300和发送模块 310。
第一定时关系确定模块 300, 用于确定专属反馈定时关系;
发送模块 310 , 用于根据确定的专属反馈定时关系, 在主载波上传输下行数据对应的 反馈信息。
较佳地, 第一定时关系确定模块 300确定网络侧配置的专属反馈定时关系; 其中, 网络侧配置使用主载波对应的反馈定时关系作为专属反馈定时关系, 或网络侧 配置的专属反馈定时关系对应的 TDD上 /下行配置中的上行子帧是用户设备聚合的任意载 波中上行子帧的子集或全集。
较佳地, 第一定时关系确定模块 300确定预先约定的专属反馈定时关系;
其中, 预先约定使用主载波对应的反馈定时关系作为专属反馈定时关系, 或预先约定 在主载波对应的反馈定时关系对应的 TDD上 /下行配置是 0或 1或 2或 6时,使用 TDD上
/下行配置 2对应的反馈定时关系作为专属反馈定时关系,在主载波对应的反馈定时关系对 应的 TDD上 /下行配置是 3或 4时, 使用 TDD上 /下行配置 4对应的反馈定时关系作为专 属反馈定时关系。 较佳地, 第一定时关系确定模块 300根据公式一或公式二确定反馈信息比特数。 较佳地, 第一定时关系确定模块 300在对应的 TDD上 /下行配置与专属反馈定时关系 对应的 TDD上 /下行配置不同的载波中, 对于专属反馈定时关系对应为下行而载波对应为 上行的第二特定子帧, 对第二特定子帧发送反馈信息。
较佳地, 第一定时关系确定模块 300在对应的 TDD上 /下行配置与专属反馈定时关系 对应的 TDD上 /下行配置不同的载波中, 对于专属反馈定时关系对应为上行而载波对应为 下行的第二特定子帧, 针对所述第二特定子帧对应的反馈信息进行特定处理。
较佳地, 第一定时关系确定模块 300针对所述第二特定子帧对应的反馈信息进行特定 处理时, 具体用于: 对第二特定子帧不发送反馈信息; 或将第二特定子帧对应的反馈信息 与位于第二特定子帧之前或之后最近的至少一个下行子帧的反馈信息进行合并, 并占用第 二特定子帧之前或之后最近的至少一个下行子帧的反馈信息的位置进行发送。
如图 4所示, 本发明实施例的网络侧设备包括: 第二定时关系确定模块 400和接收模 块 410。
第二定时关系确定模块 400 , 确定专属反馈定时关系;
接收模块 410, 用于根据确定的专属反馈定时关系, 在使用不同 TDD上 /下行配置的 载波聚合的用户设备的主载波上接收来自用户设备的反馈信息。
较佳地, 第二定时关系确定模块 400为用户设备配置专属反馈定时关系;
其中, 配置的专属反馈定时关系与主载波对应的反馈定时关系相同, 或配置的专属反 馈定时关系对应的 TDD上 /下行配置中的上行子帧是用户设备聚合的任意载波中上行子帧 的子集。
较佳地, 第二定时关系确定模块 400确定预先约定的专属反馈定时关系;
其中, 预先约定使用主载波对应的反馈定时关系作为专属反馈定时关系, 或预先约定 在主载波对应的反馈定时关系对应的 TDD上 /下行配置是 0或 1或 2或 6时,使用 TDD上 /下行配置 2对应的反馈定时关系作为专属反馈定时关系,在主载波对应的反馈定时关系对 应的 TDD上 /下行配置是 3或 4时, 使用 TDD上 /下行配置 4对应的反馈定时关系作为专 属反馈定时关系。
较佳地, 第二定时关系确定模块 400根据公式一或公式二确定反馈信息比特数。 如图 5所示, 本发明实施例发送反馈信息的方法包括下列步骤:
步骤 501、 使用不同 TDD上 /下行配置的载波进行聚合的用户设备, 确定专属反馈定 时关系;
步骤 502、 使用不同 TDD上 /下行配置的载波进行聚合的用户设备根据确定的专属反 馈定时关系, 在主载波上传输下行数据对应的反馈信息。
较佳地, 专属反馈定时关系可以满足下列条件中的至少一种:
( 1 )、 专属反馈定时关系 Rel-8 TDD系统所支持的反馈定时关系中的一种, 即表 1中 的一种;
( 2 )、 根据专属反馈定时关系确定的承载下行数据对应的反馈信息的上行子帧是主载 波中上行子帧的一个子集或全集, 即按照专属定时关系进行 ACK/NACK反馈时, 其对应 的反馈子帧是主载波上的至少一个上行子帧。
较佳地, 步骤 501中, 用户设备确定的专属反馈定时关系可以是网络侧配置的, 也可 以是预先配置的。 下面分别进行说明。
方式一、 专属反馈定时关系是网络侧配置的。
具体的, 用户设备确定网络侧配置的专属反馈定时关系;
其中, 网络侧配置主载波对应的反馈定时关系作为专属反馈定时关系; 或网络侧配置 的专属反馈定时关系对应的 TDD 上 /下行配置中的上行子帧是用户设备聚合的任意载波 (这里的任意载波可以是任意一个载波, 也可以是任意多个载波) 中上行子帧的子集或全 集。
方式二、 专属反馈定时关系是预先约定的。
具体的, 用户设备确定预先约定的专属反馈定时关系;
其中, 预先约定使用主载波对应的反馈定时关系作为专属反馈定时关系; 或预先约定 在主载波对应的反馈定时关系对应的 TDD上 /下行配置是 0或 1或 2或 6 (参见表 1 ) 时, 使用 TDD上 /下行配置 2对应的反馈定时关系作为专属反馈定时关系, 在主载波对应的反 馈定时关系对应的 TDD上 /下行配置是 3或 4 (参见表 1 )时, 使用 TDD上 /下行配置 4对 应的反馈定时关系作为专属反馈定时关系。
需要说明的是, 不管釆用哪种方式, 网络侧设备和用户设备都应该使用相同的专属定 时关系, 具体可以通过协议约定或网络侧通知釆用哪种方式。
在实施中, 在步骤 502之前, 用户设备还可以确定反馈信息比特数。
较佳地,对于传输下行数据所对应的 ACK/NACK信息, ACK/NACK codebook大小将 基于专属的 ACK/NACK反馈定时关系确定。
具体的, 用户设备可以根据公式一或公式二确定反馈信息比特数。
用户设备和网络侧设备需要使用相同的公式确定反馈信息比特数。
对于某些子帧, 有可能出现专属反馈定时关系对应为下行而载波对应为上行, 或专属 反馈定时关系对应为上行而载波对应为下行。 对于这些子帧一种较佳的处理方式是: 在步 骤 502之前, 在对应的 TDD上 /下行配置与专属反馈定时关系对应的 TDD上 /下行配置不 同的载波中, 对于专属反馈定时关系对应为下行而载波对应为上行的第一特定子帧, 用户 设备对第一特定子帧发送反馈信息;
在对应的 TDD上 /下行配置与专属反馈定时关系对应的 TDD上 /下行配置不同的载波 中, 对于专属反馈定时关系对应为上行而载波对应为下行的第二特定子帧, 用户设备针对 所述第二特定子帧对应的反馈信息进行特定处理。
所述用户设备针对所述第二特定子帧对应的反馈信息进行特定处理, 包括: 针对第二 特定子帧, 用户设备可以对第二特定子帧不发送反馈信息; 或将第二特定子帧对应的反馈 信息与位于第二特定子帧之前或之后最近的至少一个下行子帧的反馈信息进行合并, 并占 用第二特定子帧之前或之后最近的至少一个下行子帧的反馈信息的位置进行发送。
如图 6所示, 本发明实施例接收反馈信息的方法包括下列步骤:
步骤 601、 网络侧设备确定专属反馈定时关系;
步骤 602、 网络侧设备根据确定的专属反馈定时关系, 在使用不同 TDD上 /下行配置 的载波聚合的用户设备的主载波上接收来自用户设备的反馈信息。
较佳地, 专属反馈定时关系可以满足下列条件中的至少一种:
( 1 )、 专属反馈定时关系 Rel-8 TDD系统所支持的反馈定时关系中的一种, 即表 1中 的一种;
( 2 )、 根据专属反馈定时关系确定的承载下行数据对应的反馈信息的上行子帧是主载 波中上行子帧的一个子集或全集, 即按照专属定时关系进行 ACK/NACK反馈时, 其对应 的反馈子帧是主载波上的至少一个上行子帧。
较佳地, 网络侧设备确定的专属反馈定时关系可以是配置给用户设备的, 还可以预先 配置的。 下面分别进行说明。
方式一、 专属反馈定时关系是网络侧配置的。
具体的, 网络侧设备为用户设备配置专属反馈定时关系;
其中, 网络侧配置的专属反馈定时关系与主载波对应的反馈定时关系相同; 或网络侧 配置的专属反馈定时关系对应的 TDD上 /下行配置中的上行子帧是用户设备聚合的任意载 波中上行子帧的子集或全集。
方式二、 专属反馈定时关系是预先约定的。
具体的, 网络侧设备确定预先配置的专属反馈定时关系;
其中, 预先约定使用主载波对应的反馈定时关系作为专属反馈定时关系; 或 预先约定在主载波对应的反馈定时关系对应的 TDD上 /下行配置是 0或 1或 2或 6(参 见表 1 ) 时, 使用 TDD上 /下行配置 2对应的反馈定时关系作为专属反馈定时关系, 在主 载波对应的反馈定时关系对应的 TDD上 /下行配置是 3或 4 (参见表 1 )时, 使用 TDD上 / 下行配置 4对应的反馈定时关系作为专属反馈定时关系。
需要说明的是, 不管釆用哪种方式, 网络侧设备和用户设备都应该使用相同的专属定 时关系, 具体可以通过协议约定或网络侧通知釆用哪种方式。
在实施中, 步骤 602之前, 网络侧设备还可以确定反馈信息比特数。
具体的, 网络侧设备可以根据公式一或公式二确定反馈信息比特数。
其中, 图 5和图 6可以合成一个流程, 形成一个传输反馈信息的方法, 即先执行步骤
501和步骤 601 , 再执行步骤 502, 最后执行步骤 602。
步骤 501和步骤 601并没有必然的先后顺序,如果专属反馈定时关系是网络侧配置的, 则先执行步骤 601再执行步骤 501 ; 如果专属反馈定时关系是预先配置的, 即可以先执行 步骤 501再执行步骤 601 , 也可以先执行步骤 601再执行步骤 501 , 还可以同时执行步骤
501和步骤 601。
本领域内的技术人员应明白, 本发明的实施例可提供为方法、 系统、 或计算机程序产 品。 因此, 本发明可釆用完全硬件实施例、 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, 本发明可釆用在一个或多个其中包含有计算机可用程序代码的计算机 可用存储介盾 (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。
本发明是参照根据本发明实施例的方法、 设备(系统)、 和计算机程序产品的流程图 和 /或方框图来描述的。 应理解可由计算机程序指令实现流程图和 /或方框图中的每一流 程和 /或方框、 以及流程图和 /或方框图中的流程和 /或方框的结合。 可提供这些计算机 程序指令到通用计算机、 专用计算机、 嵌入式处理机或其他可编程数据处理设备的处理器 以产生一个机器, 使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用 于实现在流程图一个流程或多个流程和 /或方框图一个方框或多个方框中指定的功能的 装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方 式工作的计算机可读存储器中, 使得存储在该计算机可读存储器中的指令产生包括指令装 置的制造品, 该指令装置实现在流程图一个流程或多个流程和 /或方框图一个方框或多个 方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上, 使得在计算机 或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理, 从而在计算机或其他 可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和 /或方框图一个 方框或多个方框中指定的功能的步骤。
尽管已描述了本发明的优选实施例, 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 实施例以及落入本发明范围的所有变更和修改。
由于能够在使用不同 TDD上下行配置的载波进行聚合后传输反馈信息, 从而提高了 在使用不同 TDD上下行配置的载波进行聚合后的传输效率和系统性能。
显然, 本领域的技术人员可以对本发明进行各种改动和变型而不脱离本发明的精神和 范围。这样,倘若本发明的这些修改和变型属于本发明权利要求及其等同技术的范围之内, 则本发明也意图包含这些改动和变型在内。

Claims

权 利 要 求
1、 一种发送反馈信息的方法, 其特征在于, 该方法包括:
用户设备确定专属反馈定时关系;
所述用户设备根据确定的专属反馈定时关系, 在主载波上传输下行数据对应的反馈信 息;
其中, 所述用户设备, 是使用不同时分双工 TDD上 /下行配置的载波进行聚合的用户 设备。
2、 如权利要求 1所述的方法, 其特征在于, 所述专属反馈定时关系是版本 Rel-8 TDD 系统所支持的反馈定时关系中的一种。
3、 如权利要求 1 所述的方法, 其特征在于, 所述专属反馈定时关系确定的承载下行 数据对应的反馈信息的上行子帧, 是主载波中上行子帧的一个子集或全集。
4、 如权利要求 1 所述的方法, 其特征在于, 所述用户设备确定专属反馈定时关系包 括:
所述用户设备确定网络侧配置的专属反馈定时关系;
其中, 网络侧配置的所述专属反馈定时关系与主载波对应的反馈定时关系相同, 或网 络侧配置的所述专属反馈定时关系对应的 TDD上 /下行配置中的上行子帧, 是用户设备聚 合的任意载波中上行子帧的子集或全集。
5、 如权利要求 1 所述的方法, 其特征在于, 所述用户设备确定专属反馈定时关系包 括:
所述用户设备确定预先约定的专属反馈定时关系;
其中, 预先约定使用主载波对应的反馈定时关系作为所述专属反馈定时关系, 或预先 约定在主载波对应的反馈定时关系对应的 TDD上 /下行配置是 0或 1或 2或 6时,使用 TDD 上 /下行配置 2对应的反馈定时关系作为所述专属专属反馈定时关系,在主载波对应的反馈 定时关系对应的 TDD上 /下行配置是 3或 4时, 使用 TDD上 /下行配置 4对应的反馈定时 关系作为所述专属反馈定时关系。
6、 如权利要求 1 ~ 5任一所述的方法, 其特征在于, 所述用户设备发送反馈信息之前 还包括:
根据下列公式一确定反馈信息比特数:
Figure imgf000015_0001
其中, N为反馈信息比特数, M为按照专属的反馈定时关系确定的需要在同一个上 行子帧中传输反馈信息的子帧数量; c为聚合的载波数量; c™为下行配置使用多码字 传输模式且未配置进行反馈信息空间合并的载波数量;
或者, 根据下列公式二确定反馈信息比特数:
N = ^C Mx DL xTBx…―公式二;
x=o
其中, N为反馈信息比特数, M 为载波 X上, 按照专属的反馈定时关系确定的需要 在同一个上行子帧中传输反馈信息的 M个子帧中是下行子帧的数量; C为聚合的载波 数量; 若载波 X下行配置使用单码字传输模式或配置进行反馈信息空间合并, 则 BX =1 , 否则 BX =2。
7、 如权利要求 1 ~ 5任一所述的方法, 其特征在于, 所述用户设备发送反馈信息之前 还包括:
在特定载波中, 对于专属反馈定时关系对应为下行而所述载波对应为上行的第一特定 子帧, 所述用户设备针对所述第一特定子帧发送反馈信息;
其中, 所述特定载波的 TDD上 /下行配置, 与专属反馈定时关系对应的 TDD上 /下行 配置不同。
8、 如权利要求 1 ~ 5任一所述的方法, 其特征在于, 所述用户设备发送反馈信息之前 还包括:
在特定载波中, 对于专属反馈定时关系对应为上行而所述载波对应为下行的第二特定 子帧, 所述用户设备针对所述第二特定子帧对应的反馈信息进行特定处理;
其中, 所述特定载波的 TDD上 /下行配置, 与专属反馈定时关系对应的 TDD上 /下行 配置不同。
9、 如权利要求 8 所述的方法, 其特征在于, 所述用户设备针对所述第二特定子帧对 应的反馈信息进行特定处理, 包括:
所述用户设备不发送所述第二特定子帧对应的反馈信息; 或
所述用户设备将所述第二特定子帧对应的反馈信息与位于所述第二特定子帧之前或 之后最近的至少一个下行子帧的反馈信息进行合并, 并占用所述第二特定子帧之前或之后 最近的至少一个下行子帧的反馈信息的位置发送合并后的反馈信息。
10、 一种接收反馈信息的方法, 其特征在于, 该方法包括:
网络侧设备确定专属反馈定时关系;
所述网络侧设备根据确定的专属反馈定时关系, 在用户设备的主载波上接收来自所述 用户设备的反馈信息, 其中, 所述用户设备为使用不同 TDD上 /下行配置的载波聚合的用 户设备。
11、 如权利要求 10所述的方法, 其特征在于, 所述专属反馈定时关系是 Rel-8 TDD 系统所支持的反馈定时关系中的一种。
12、 如权利要求 10 所述的方法, 其特征在于, 所述专属反馈定时关系确定的承载下 行数据对应的反馈信息的上行子帧, 是主载波中上行子帧的一个子集或全集。
13、 如权利要求 10 所述的方法, 其特征在于, 所述网络侧设备接收所述反馈信息之 前还包括:
所述网络侧设备为所述用户设备配置专属反馈定时关系;
其中, 配置的所述专属反馈定时关系与主载波对应的反馈定时关系相同, 或配置的所 述专属反馈定时关系对应的 TDD上 /下行配置中的上行子帧, 是用户设备聚合的任意载波 中上行子帧的子集或全集。
14、 如权利要求 10 所述的方法, 其特征在于, 所述网络侧设备确定专属反馈定时关 系包括:
所述网络侧设备确定预先约定的专属反馈定时关系;
其中, 预先约定使用主载波对应的反馈定时关系作为所述专属反馈定时关系, 或预先 约定在主载波对应的反馈定时关系对应的 TDD上 /下行配置是 0或 1或 2或 6时,使用 TDD 上 /下行配置 2对应的反馈定时关系作为所述专属专属反馈定时关系,在主载波对应的反馈 定时关系对应的 TDD上 /下行配置是 3或 4时, 使用 TDD上 /下行配置 4对应的反馈定时 关系作为所述专属反馈定时关系。
15、 如权利要求 10 ~ 14任一所述的方法, 其特征在于, 所述网络侧设备接收反馈信 息之前还包括:
根据下列公式一确定反馈信息比特数:
Figure imgf000017_0001
其中, N为反馈信息比特数, M为按照专属的反馈定时关系确定的需要在同一个上 行子帧中传输反馈信息的子帧数量; c为聚合的载波数量; C™为下行配置使用多码字 传输模式且未配置进行反馈信息空间合并的载波数量;
或者, 根据下列公式二确定反馈信息比特数:
Figure imgf000018_0001
TB 'χ 公式二;
X=0
其中, N为反馈信息比特数, M 为载波 X上, 按照专属的反馈定时关系确定的需要 在同一个上行子帧中传输反馈信息的 M个子帧中是下行子帧的数量; C为聚合的载波 数量; 若载波 X下行配置使用单码字传输模式或配置进行反馈信息空间合并, 则 BX =1 , 否则 BX =2。
16、 一种发送反馈信息的设备 , 该设备使用不同 TDD上 /下行配置的载波进行聚合 , 其特征在于, 该设备包括:
第一定时关系确定模块, 用于确定专属反馈定时关系;
发送模块, 用于根据确定的专属反馈定时关系, 在主载波上传输下行数据对应的反馈 信息。
17、 如权利要求 16所述的设备, 其特征在于, 所述第一定时关系确定模块具体用于: 确定网络侧配置的专属反馈定时关系;
其中, 网络侧配置的所述专属反馈定时关系与主载波对应的反馈定时关系相同, 或网 络侧配置的所述专属反馈定时关系对应的 TDD上 /下行配置中的上行子帧, 是用户设备聚 合的任意载波中上行子帧的子集或全集。
18、 如权利要求 16所述的设备, 其特征在于, 所述第一定时关系确定模块具体用于: 确定预先约定的专属反馈定时关系;
其中, 预先约定使用主载波对应的反馈定时关系作为所述专属反馈定时关系, 或预先 约定在主载波对应的反馈定时关系对应的 TDD上 /下行配置是 0或 1或 2或 6时,使用 TDD 上 /下行配置 2对应的反馈定时关系作为预所述专属专属反馈定时关系,在主载波对应的反 馈定时关系对应的 TDD上 /下行配置是 3或 4时, 使用 TDD上 /下行配置 4对应的反馈定 时关系作为预所述专属专属反馈定时关系。
19、 如权利要求 16 - 18任一所述的设备, 其特征在于, 所述第一定时关系确定模块 还用于根据下列公式一确定反馈信息比特数:
N = Mx(C + C2TB) … 公式一; 其中, N为反馈信息比特数, M为按照专属的反馈定时关系确定的需要在同一个上 行子帧中传输反馈信息的子帧数量; c为聚合的载波数量; C™为下行配置使用多码字 传输模式且未配置进行反馈信息空间合并的载波数量; 或者, 根据下列公式二确定反馈信息比特数:
Ν = ^Μ^ χΤΒχ…―公式二; 其中, Ν为反馈信息比特数, Μ 为载波 X上, 按照专属的反馈定时关系确定的需要 在同一个上行子帧中传输反馈信息的 Μ个子帧中是下行子帧的数量; C为聚合的载波 数量; 若载波 X下行配置使用单码字传输模式或配置进行反馈信息空间合并, 则 ΒΧ =1 , 否则 ΒΧ =2。
20、 如权利要求 16 - 18任一所述的设备, 其特征在于, 所述第一定时关系确定模块 还用于:
在特定载波中, 对于专属反馈定时关系对应为下行而所述载波对应为上行的第二特定 子帧, 针对所述第一特定子帧发送反馈信息;
其中, 所述特定载波的 TDD上 /下行配置与专属反馈定时关系对应的 TDD上 /下行配 置不同。
21、 如权利要求 16 - 18任一所述的设备, 其特征在于, 所述第一定时关系确定模块 还用于:
在特定载波中, 对于专属反馈定时关系对应为上行而所述载波对应为下行的第二特定 子帧, 针对所述第二特定子帧对应的反馈信息进行特定处理;
其中, 所述特定载波的 TDD上 /下行配置, 与专属反馈定时关系对应的 TDD上 /下行 配置不同。
22、 如权利要求 21 所述的设备, 其特征在于, 所述第一定时关系确定模块在针对所 述第二特定子帧对应的反馈信息进行特定处理时, 具体用于:
不发送所述第二特定子帧对应的反馈信息; 或
将所述第二特定子帧对应的反馈信息与位于所述第二特定子帧之前或之后最近的至 少一个下行子帧的反馈信息进行合并, 并占用所述第二特定子帧之前或之后最近的至少一 个下行子帧的反馈信息的位置发送合并后的反馈信息。
23、 一种接收反馈信息的设备, 其特征在于, 该设备包括:
第二定时关系确定模块, 确定专属反馈定时关系;
接收模块, 用于根据确定的专属反馈定时关系, 在用户设备的主载波上接收来自所述 用户设备的反馈信息, 其中, 所述用户设备为使用不同 TDD上 /下行配置的载波聚合的用 户设备。
24、 如权利要求 23所述的设备, 其特征在于, 所述第二定时关系确定模块还用于: 为所述用户设备配置专属反馈定时关系;
其中, 配置的所述专属反馈定时关系与主载波对应的反馈定时关系相同, 或配置的所 述专属反馈定时关系对应的 TDD上 /下行配置中的上行子帧, 是用户设备聚合的任意载波 中上行子帧的子集。
25、 如权利要求 23所述的设备, 其特征在于, 所述第二定时关系确定模块具体用于: 确定预先约定的专属反馈定时关系;
其中, 预先约定使用主载波对应的反馈定时关系作为所述专属反馈定时关系, 或预先 约定在主载波对应的反馈定时关系对应的 TDD上 /下行配置是 0或 1或 2或 6时,使用 TDD 上 /下行配置 2对应的反馈定时关系作为所述专属反馈定时关系,在主载波对应的反馈定时 关系对应的 TDD上 /下行配置是 3或 4时, 使用 TDD上 /下行配置 4对应的反馈定时关系 作为所述专属反馈定时关系。
26、 如权利要求 23 ~ 25 任一所述的设备, 其特征在于, 所述第二定时关系确定模块 还用于根据下列公式一确定反馈信息比特数:
N = Mx(C + C2TB) … 公式一; 其中, N为反馈信息比特数, M为按照专属的反馈定时关系确定的需要在同一个上 行子帧中传输反馈信息的子帧数量; c为聚合的载波数量; C™为下行配置使用多码字 传输模式且未配置进行反馈信息空间合并的载波数量;
或者, 根据下列公式二确定反馈信息比特数:
N = ^C Mx DL xTBx…―公式二;
x=o
其中, N为反馈信息比特数, M 为载波 X上, 按照专属的反馈定时关系确定的需要 在同一个上行子帧中传输反馈信息的 M个子帧中是下行子帧的数量; C为聚合的载波 数量; 若载波 X下行配置使用单码字传输模式或配置进行反馈信息空间合并, 则 BX =1 , 否则 BX =2。
27、 一种传输反馈信息的系统, 其特征在于, 该系统包括:
使用不同 TDD上 /下行配置的载波进行聚合的用户设备,用于确定专属反馈定时关系, 根据确定的专属反馈定时关系, 在主载波上传输下行数据对应的反馈信息;
网络侧设备, 用于确定专属反馈定时关系, 根据确定的专属反馈定时关系, 在使用不 同 TDD 上 /下行配置的载波聚合的用户设备的主载波上接收来自所述用户设备的反馈信 息。
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