WO2013135015A1 - 增强上行链路覆盖的方法及装置、基站 - Google Patents

增强上行链路覆盖的方法及装置、基站 Download PDF

Info

Publication number
WO2013135015A1
WO2013135015A1 PCT/CN2012/077162 CN2012077162W WO2013135015A1 WO 2013135015 A1 WO2013135015 A1 WO 2013135015A1 CN 2012077162 W CN2012077162 W CN 2012077162W WO 2013135015 A1 WO2013135015 A1 WO 2013135015A1
Authority
WO
WIPO (PCT)
Prior art keywords
harq process
transport block
time interval
harq
transmission time
Prior art date
Application number
PCT/CN2012/077162
Other languages
English (en)
French (fr)
Inventor
陈宪明
关艳峰
袁弋非
左志松
张峻峰
Original Assignee
中兴通讯股份有限公司
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 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Publication of WO2013135015A1 publication Critical patent/WO2013135015A1/zh

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1822—Automatic repetition systems, e.g. Van Duuren systems involving configuration of automatic repeat request [ARQ] with parallel processes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • the present invention relates to an enhanced uplink coverage technique, and in particular, to a method and apparatus for enhancing uplink coverage, and a base station. Background technique
  • the radio access network of the Long Term Evolution (LTE) system includes: an enhanced Node B (eNB) and a User Equipment (UE), where the enhanced Node B is connected to the core network or other network, and The wireless interface communicates with the UEs located in the cell served by the Node B.
  • eNB enhanced Node B
  • UE User Equipment
  • the wireless interface communicates with the UEs located in the cell served by the Node B.
  • the UEs are limited in power, that is, their transmission power is insufficient to reach the target transmission error rate, that is, the so-called Block Error Ratio (BLER) does not reach the target value. Therefore, there is a need to find a solution for enhancing the coverage of power limited UEs, i.e., a solution that requires enhanced uplink (UL, UpLink) coverage.
  • UL, UpLink enhanced uplink
  • Bundling Transmission Time Interval Bundling
  • 3GPP 3rd Generation Partnership Project
  • 3rd Generation Partnership Project 3rd Generation Partnership Project
  • the so-called ⁇ bundle refers to the radio resource allocated by the scheduler to the UE for more than one transmission time interval.
  • the UE is continuously transmitted with a redundancy version (RV, Redundancy Version) of the same transport block over successive transmission time intervals, and the above operation is regarded as one transmission attempt of the UE.
  • the TTI bundle is implemented by logical resource control signaling.
  • ⁇ Bundling limits the flexibility of the scheduler to perform resource allocation to some extent, especially if the bundle length is too large. So far, there is no better solution for enhancing UL coverage while taking into account the flexibility of resource allocation. Summary of the invention
  • the main object of the present invention is to provide a method and apparatus for enhancing uplink coverage, a base station, which can improve UL coverage performance and achieve flexibility in resource allocation.
  • a method of enhancing uplink coverage including:
  • the network side control UE transmits the same UL transport block using two or more HARQ processes.
  • the method further includes:
  • the network side After correctly decoding the UL transport block, the network side sends a termination indication corresponding to the two or more HARQ processes to the UE.
  • the network side control UE sends the same UL transport block by using two or more HARQ processes, and is: UL grant information, and controls the UE to send the same UL transport block by using the two or more HARQ processes.
  • the UL grant information includes:
  • the method further includes:
  • the network side notifies the UE of at least one of the following information by using a proprietary system message:
  • the TTI bundling enable flag, the bundle length, and the redundancy version RV sent by successive bundled subframes associated with the ⁇ bundle.
  • the HARQ process bundling flag indicates whether the UL grant information of the current HARQ process corresponds to the same UL transport block as the UL grant information of the previous HARQ process.
  • the method further includes: When the UL grant information of a certain HARQ process belonging to the two or more HARQ processes is changed, the network side sends the changed UL grant information related to the certain HARQ process to the UE.
  • the method further includes:
  • the network side After receiving, by the network side, the redundancy version RV related to the UL transport block sent by the UE that belongs to the two or more HARQ processes, the network side uses the received RV to decode the UL transmission. Blocking, and in the setting TTI, feed back to the UE a message indicating whether the decoding is successful or not related to the certain HARQ process.
  • the network side is a base station.
  • An apparatus for enhancing uplink coverage including:
  • control unit configured to control the UE to send the same UL transport block by using two or more HARQ process UEs.
  • the apparatus further includes a decoding unit and a sending unit, where:
  • a decoding unit configured to decode a UL transport block of the HARQ process
  • the sending unit after correctly decoding the UL transport block of a certain HARQ process, sends a termination indication corresponding to the two or more HARQ processes to the UE.
  • control unit is further configured to: send, by the sending unit, the UL grant information corresponding to the two or more HARQ processes to the UE, and control the UE to send by using the two or more HARQ processes.
  • the UL grant information includes:
  • Time-frequency resource block allocation information, modulation coding scheme, power control commands, and HARQ process bundle flags in a single frame. Before a corresponding UL grant information, it is also used to send at least one of the following letters through a proprietary system message Notifying the UE:
  • the TTI bundling enable flag, the bundle length, and the redundancy version RV sent by successive bundled subframes associated with the ⁇ bundle.
  • the sending unit is further configured to: after the UL grant information of a certain HARQ process belonging to the two or more HARQ processes is changed, the network side sends a change related to the certain HARQ process to the UE, UL grant information.
  • the device further includes:
  • a receiving unit configured to receive, by the UE, a redundancy version RV related to the UL transport block sent by a HARQ process that belongs to the two or more HARQ processes;
  • the decoding unit is further configured to: pass the received UE by using the two or more
  • All RVs of all HARQ processes related to the UL transport block sent by the HARQ process decode the UL transport block, and send a decoding related to the certain HARQ process to the UE through the sending unit by setting a TTI Success or failure message.
  • a base station the foregoing apparatus for enhancing uplink coverage.
  • the base station controls the UE to use the two or more HARQ processes to transmit the same UL transport block, and controls the enhanced uplink coverage by controlling the transmission time interval, the bundle length, and the maximum number of attempted transmissions of the HARQ process. Improved UL coverage and flexibility in resource allocation.
  • Figure 1 is a schematic diagram of a redundancy version RV
  • FIG. 2 is a schematic diagram of implementing a first transmission of an uplink UL transport block by HARQ process bundling according to an embodiment of the present invention
  • FIG. 3 is a schematic diagram of a first transmission of an uplink UL transport block by HARQ process bundling and transmission time interval TTI bundling according to an embodiment of the present invention
  • FIG. 4 is a schematic diagram of implementing an uplink UL transport block by HARQ process bundling according to an embodiment of the present invention. Schematic diagram of the transmission;
  • FIG. 5 is a schematic diagram of implementing retransmission of an uplink UL transport block by HARQ process bundling and transmission time interval TTI bundling according to an embodiment of the present invention
  • FIG. 6 is a schematic structural diagram of a device for enhancing uplink UL coverage according to an embodiment of the present invention
  • FIG. 7 is a schematic structural diagram of another apparatus for enhancing uplink UL coverage according to an embodiment of the present invention. detailed description
  • the base station transmits the same UL transport block by controlling the UE to use two or more HARQ processes, and implements enhanced uplink coverage by controlling the transmission time interval, the bundle length, and the maximum number of attempted transmissions of the HARQ process. Control not only improves the coverage of the UL but also the flexibility of resource allocation.
  • the LTE system adopts Hybrid Automatic Repeat ReQuest (HARQ) in the form of Incremental Redundancy (IR) to implement the physical layer error control mechanism to ensure the quality of service requirements.
  • HARQ Hybrid Automatic Repeat ReQuest
  • IR Incremental Redundancy
  • the RV design is adopted and used by the LTE system.
  • RV refers to a predetermined length of bit sequence which is cyclically outputted one by one from a predetermined bit position of the channel encoder output sequence; wherein the predetermined length is related to the resource allocation size and the modulation scheme.
  • FIG. 1 is a schematic diagram of a redundancy version. As shown in FIG. 1, each RV defines a transmission start point, and the first transmission and each HARQ retransmission use different RVs respectively, for implementing the gradual accumulation of redundant bits. Thereby completing the HARQ operation in the form of IR.
  • 2 is a schematic diagram of implementing an uplink UL transport block by HARQ process bundling according to an embodiment of the present invention
  • PDCH Physical Downlink Control CHannel
  • the UL grant information about the HARQ process 1 allocates a HARQ process 1 (corresponding to the transmission time interval TT 5) to the UE to transmit the uplink transport block; similarly, in the range of the transmission time interval 7776, the enhanced Node B passes the HARQ process 2 UL grant information for the UE to be transmitted UL transport block allocation HARQ process 2
  • the UL grant information includes: time-frequency resource block allocation information in a single 7T7, a modulation and coding scheme, a power control command, and a HARQ process bundle flag.
  • the HARQ process bundle flag indicates whether the UL grant information of the current HARQ process is related to the front.
  • the UL grant information of the HARQ process corresponds to the same transport block, specifically,
  • the HARQ process bundle flag associated with the HARQ process 1 is set to "0”
  • the HARQ process bundle flag associated with the HARQ process 2 is set to "1”
  • the HARQ process 1 and the HARQ process 2 The UL grant information corresponds to the same UL transport block.
  • the UE performs the following operations within the transmission time interval span from the start of the transmission time interval ⁇ 1 to the end of the transmission time interval ⁇ 4: Step 1: Receive and decode the PDCCH bearer and HARQ included in the transmission time interval TTI 1 DL bandwidth portion Process 1 related UL grant information; Here, it is assumed that the UE correctly receives and decodes the UL grant information. Step 2: judging whether a new UL transport block is currently transmitted according to the HARQ process bundle flag related to the HARQ process 1. Here, since the HARQ process bundle flag related to the HARQ process 1 is "0", it is determined to send a new one. UL transport block.
  • the UE performs the following operations in the transmission time interval ⁇ 77 5: transmitting the new UL transport block according to the UL grant information related to the HARQ process 1, the UL grant information including: a single time-frequency resource block allocation information, a modulation and coding scheme And power control commands.
  • the UE performs the following operations within the transmission time interval span from the start of the transmission time interval TTI 6 to the end of the transmission time interval TTI 9: Step 1: Receive and decode the PDCCH bearer and HARQ process included in the DL bandwidth portion of the transmission time interval 7776 2 related UL grant information; here, it is assumed that the UE correctly receives and decodes the UL grant information.
  • Step 2 judging whether a new UL transport block is currently transmitted according to the HARQ process bundling flag related to the HARQ process 2; here, since the HARQ process bundle flag related to the HARQ process 2 is "1", it is determined that the transmission and the front are HARQ process 1 has the same UL transport block.
  • the UE performs the following operations within the transmission time interval 777 10: transmitting the same UL transport block as the process 1 according to the UL grant information related to the HARQ process 2, where the UL grant information includes: a single transmission time interval time-frequency resource block allocation Information, modulation coding scheme and power control commands.
  • the enhanced Node B serves the UE and the uplink traffic has been activated.
  • the enhanced Node B informs the UE of the following information through radio frequency resource control signaling carried in the UE-specific system message: ⁇ Bundle enable flag, bundle length, and RV of consecutive bundled subframe transmissions associated with ⁇ bundle.
  • ⁇ bundle enable flag is set to "1", indicating that the ⁇ bundle function is enabled, the bundle length is 4, and the redundancy version of the continuous bundle subframe transmission associated with ⁇ bundle is: ⁇ RV0, RV1, RV 2 , RV 3 ⁇ .
  • the UE receives and decodes the radio resource control signaling in the system message, and obtains and stores the following information: ⁇ bundle enable flag, bundle length, and RV information transmitted by consecutive bundled subframes associated with the bundle.
  • FIG. 3 is a schematic diagram of a first transmission of an uplink UL transport block by HARQ process bundling and transmission time interval bundling according to an embodiment of the present invention.
  • the enhanced Node B is included in the DL in the transmission time interval 777.
  • the UL grant information about the HARQ process 1 carried by the PDCCH of the bandwidth allocates HARQ process 1 (corresponding to the transmission time interval 7775) to the UE to transmit the uplink transport block; similarly, in the range of the transmission time interval 7779, the enhanced section
  • the point B allocates a HARQ process 2 (corresponding to the transmission time interval 777 3) resource for the UL transmission block to be transmitted by the UE through the UL grant information about the HARQ process 2.
  • the UL grant information includes: a single transmission time interval time-frequency resource block allocation information, a modulation and coding scheme, a power control command, and a HARQ process bundle flag; wherein, the HARQ process bundle flag indicates whether the current HARQ process UL grant information is related to the previous HARQ process.
  • the UL grant information corresponds to the same transport block. Specifically, "0" indicates that the current HARQ process uplink grant information corresponds to a different transport block of the previous HARQ process uplink grant information, and "1" indicates that the same transport block is associated.
  • the HARQ process bundle flag associated with the HARQ process 1 is set to "0"
  • the HARQ process bundle flag associated with the HARQ process 2 is set to " ⁇ , that is, the UL of the HARQ process 1 and the HARQ process 2 Grant the same UL transport block to be transmitted.
  • the UE performs the following operations within the transmission time interval span from the start of the transmission time interval ⁇ 1 to the end of the transmission time interval ⁇ 4: Step 1: Receive and decode the PDCCH bearer and HARQ included in the transmission time interval TTI 1 DL bandwidth portion Process 1 related UL grant information; Here, it is assumed that the UE correctly receives and decodes the UL grant information. Step 2: judging whether a new UL transport block is currently transmitted according to the HARQ process bundle flag related to the HARQ process 1. Here, since the HARQ process bundle flag related to the HARQ process 1 is "0", it is determined to send a new one. UL transport block.
  • Step 3 Determine, according to the TTI bundling enable flag, whether the transmission time interval bundling function is currently enabled. If the determination result is yes, obtain the R&D bundle length and the RV information sent by the continuous bundling subframe related to the ⁇ bundle; here, the current The ⁇ Bundle function is enabled, and the bundle length is 4, and the RVs sent by consecutive cluster sub-frames related to ⁇ bundle are: ⁇ RVO, RV1, RV2, RV3].
  • the UE performs the following operations within a transmission time interval span from the start of the transmission time interval TTI 5 to the end of the transmission time interval ⁇ 8: transmitting the new UL transport block according to the UL grant information related to the HARQ process 1 and the ⁇ bundle information;
  • the UL grant information includes: a single transmission time interval time-frequency resource block allocation information, a modulation and coding scheme, and a power control command, TTI bundle
  • the information includes: cluster length, RV information sent by consecutive bundled subframes.
  • the uplink transport block RV0 is transmitted at the transmission time interval ⁇ 5
  • the uplink transport block RV1 is transmitted at the transmission time interval ⁇ 6
  • the uplink transport block RV2 is transmitted at the transmission time interval ⁇ 7
  • the uplink transport block RV3 is transmitted at the transmission time interval TTI8.
  • the UE performs the following operations in the transmission time interval span from the start of the transmission time interval TTI 9 to the end of the transmission time interval TTI 12: Step 1: Receive and decode the PDCCH bearer and the HARQ process included in the transmission time interval TTI 9 DL bandwidth portion 2 related UL grant information; here, it is assumed that the UE correctly receives and decodes the UL grant information. Step 2: judging whether a new UL transport block is currently transmitted according to the HARQ process bundle flag related to the HARQ process 2; specifically, since the HARQ process bundle flag related to the HARQ process 2 is "1", determining the sending and Process 1 has the same UL transport block.
  • Step 3 determining, according to the transmission time interval, the bundle enable flag, whether the current bundle function is enabled, and if the determination result is yes, acquiring the TTI bundle length and the RV information sent by the continuous bundle subframe related to the transmission time interval bundle.
  • the current transmission time interval ⁇ Bundle function is enabled, and the bundle length is 4, and the RV information transmitted by the continuous bundled subframe is: ⁇ RV0, RV1, RV2, RV3 ⁇ .
  • the UE performs the following operations within the transmission time interval span from the start of the transmission time interval ⁇ 13 to the end of the transmission time interval ⁇ 16: transmitting the same as the HARQ process 1 according to the UL grant information related to the HARQ process 2 and the transmission time interval TTI bundling information
  • the UL grant block where the UL grant information includes: a single transmission time interval time-frequency resource block allocation information, a modulation and coding scheme, and a power control command
  • the transmission time interval ⁇ bundle information includes: a bundle length, a continuous bundle subframe transmission RV information.
  • the transport block RV0 is transmitted at the transmission time interval
  • the transport block RV1 is transmitted at the transmission time interval ⁇ 14
  • the transport block RV2 is transmitted at the transmission time interval m 5
  • the transport block RV3 is transmitted at the transmission time interval.
  • the enhanced Node B serves the UE and the uplink traffic has been activated. Fake According to the method described in the first embodiment, the UL transport block is completed at the first transmission attempt in the two HARQ processes.
  • FIG. 4 is a schematic diagram of realizing retransmission of an uplink UL transport block by HARQ process bundling according to an embodiment of the present invention.
  • the transmission time interval span from 777 to the end of the transmission time interval ⁇ 4 is enhanced.
  • Node B receives the first transmission attempt RV of HARQ process 1, and decodes the UL transport block according to the first transmission attempt of HARQ process 1; in the transmission time interval TTI 5, the enhanced Node B transmits with HARQ process 1
  • One transmission attempt is related to a positive/negative (ACK/NACK) response, and if the UL transport block is correctly decoded, a positive ACK response is sent, otherwise, a negative NACK response is sent.
  • ACK/NACK positive/negative
  • the enhanced Node B receives the first transmission attempt RV of the HARQ process 2, and attempts the RV according to the first transmission of the HARQ process 1 and The first transmission attempt of the HARQ process 2 attempts to RV decode the UL transport block; during the transmission time interval TTI 10, the enhanced Node B transmits an ACK/NACK response related to the first transmission attempt of the HARQ process 2, if UL transmission The block is decoded correctly, a positive ACK response is sent, otherwise a negative NACK response is sent.
  • the UE receives and decodes the first transmission attempt with the HARQ process 1 carried on the physical HARQ indicator channel (PHICH, Physical HARQ Indicator Channel) within the transmission time interval span from the transmission time interval TTI 5 to the end of the transmission time interval TTI 10
  • the associated positive/negative ACK/NACK response if the above response is a positive ACK response, the HARQ process 1 transmission is terminated, otherwise, during the transmission time interval 777, the UE performs the second transmission attempt of the HARQ process 1.
  • the UE receives and decodes the positive/negative ACK/NACK response carried on the PHICH related to the first transmission attempt of the HARQ process 2, within the transmission time interval span from the transmission time interval ⁇ 10 to the end of the transmission time interval TTI 15; The above response is a positive ACK response, and the HARQ process 2 transmission is terminated. Otherwise, within the transmission time interval 777 6 , the UE performs the second transmission attempt of the HARQ process 2.
  • the enhanced Node B receives the second transmission attempt RV of the HARQ process 1, and attempts the RV according to the first transmission of the HARQ process 1.
  • the second transmission attempt RV of HARQ process 1 and the first transmission attempt of HARQ process 2 RV decode the UL transport block.
  • the enhanced Node B transmits a positive/negative ACK/NACK response related to the second transmission attempt of the HARQ process 1, and if the UL transport block is correctly decoded, a positive ACK response is sent, otherwise, a negative NACK is sent. Answer.
  • the enhanced Node B receives the second transmission attempt RV of the HARQ process 2 from the transmission time interval to the transmission time interval span of the transmission time interval ⁇ 19, and attempts the RV, HARQ process according to the first transmission of the HARQ process 1.
  • the affirmative/negative ACK/NACK response associated with the second transmission attempt of process 2 if the UL transport block is correctly decoded, sends a positive ACK response, otherwise, a negative NACK response is sent.
  • the UE receives and decodes the positive/negative ACK/NACK response carried on the PHICH related to the second transmission attempt of the HARQ process 1 within the transmission time interval span from the transmission time interval TTI 15 to the end of the transmission time interval ⁇ 20; If the above response is a positive ACK response, the HARQ process 1 transmission is terminated. Otherwise, the UE performs the third transmission attempt of the HARQ process 1 within the span from the transmission time interval TTI 33 to the end of the transmission time interval ⁇ 36; Within the transmission time interval span from interval 32, the UE receives and decodes the affirmative/negative ACK/NACK response carried on the PHICH related to the second transmission attempt of the HARQ process 2; the HARQ process 2 transmission is terminated.
  • the enhanced Node B receives the third transmission attempt RV of the HARQ process 1, and attempts the RV, HARQ according to the first transmission of the HARQ process 1. 2nd transmission attempt of process 1 RV, HARQ process 1 third transmission attempt RV, HARQ process 2 first transmission attempt RV and HARQ process 2 second transmission attempt RV decoding UL transport block.
  • the enhanced Node B transmits a positive/negative ACK/NACK response related to the 3rd transmission attempt of the HARQ Process 1, and if the UL transport block is correctly decoded, a positive ACK response is sent, otherwise, a negative NACK response is sent. .
  • the UE receives and decodes the positive/negative ACK/NACK response carried on the PHICH related to the third transmission attempt of the HARQ process 1, and the HARQ process 1 transmission is terminated.
  • the enhanced Node B requires a subsequent retransmission attempt process of a certain HARQ process to change the corresponding uplink grant information (including the transmission time interval time-frequency resource allocation, modulation coding scheme, and power control), the enhanced Node B needs to be sent again through the PDCCH.
  • UL grant information related to the HARQ process For example, assuming that the enhanced Node B requires the HARQ Process 1 2nd transmission attempt and the 3rd transmission attempt to be different from the UL grant message of the HARQ Process 1 1st transmission attempt, the enhanced Node B needs to perform the following additional operations: Within the time interval 777 7, the enhanced Node B transmits the UL grant information related to the HARQ process 1 again through the PDCCH.
  • the UE further needs to perform the following operations: The UE receives and decodes the UL grant information related to the HARQ process 1 carried on the PDCCH from the transmission time interval ⁇ 77 7 to the transmission time interval span of the 777 10 end, and then receives the latest received according to the foregoing.
  • the UL grant information replaces the saved UL grant information associated with HARQ Process 1.
  • the enhanced Node B has the following features: It is assumed that the enhanced Node B correctly decodes the UL transport block and sends a positive ACK response related to a certain HARQ process, and if another HARQ process has not been terminated, the enhanced The Node B will also send a positive ACK response associated with another HARQ process to terminate the HARQ transmission process of the UL transport block on the two HARQ processes, respectively.
  • the enhanced Node B serves the UE and the uplink traffic has been activated. Fake According to the method described in Embodiment 2, the first transmission attempt of the UL transport block in the two HARQ processes has been completed.
  • FIG. 5 is a schematic diagram of realizing retransmission of an uplink UL transport block by HARQ process bundling and transmission time interval bundling according to an embodiment of the present invention. As shown in FIG. 5, the transmission time starts from the transmission time interval 777 to the end of the transmission time interval ⁇ 7.
  • the enhanced Node B receives the first transmission attempt RV of the HARQ process 1, and decodes the UL transport block according to the first transmission attempt of the HARQ process 1; within the transmission time interval ⁇ 77 ⁇ , the enhanced node transmits A positive/negative ACK/NACK response is associated with the HARQ Process 1 1st transmission attempt, if a UL transport block is correctly decoded, a positive ACK response is sent, otherwise, a negative NACK response is sent.
  • the enhanced Node B receives the first transmission attempt RV of the HARQ process 2, and attempts the RV and HARQ according to the first transmission of the HARQ process 1.
  • the first transmission attempt of process 2 attempts to RV decode the UL transport block; within the transmission time interval TTI 16, the enhanced Node B transmits a positive/negative ACK/NACK response related to the HARQ process 2 first transmission attempt, if the UL transport block Is correctly decoded, sends a positive ACK response, otherwise, sends a negative NACK response.
  • the UE receives and decodes the positive/negative ACK/NACK response carried on the PHICH related to the first transmission attempt of the HARQ process 1 within the transmission time interval span from the transmission time interval TTI 8 to the end of the transmission time interval TTI 16; If the above response is a positive ACK response, the HARQ process 1 transmission is terminated. Otherwise, the UE performs the second transmission attempt of the HARQ process 1 within the span from the transmission time interval 777 7 to the end of the transmission time interval ⁇ 20.
  • the UE receives and decodes the positive/negative ACK/NACK response carried on the PHICH related to the first transmission attempt of the HARQ process 2; The above response is a positive ACK response, and the HARQ process 2 transmission is terminated. Otherwise, the UE performs the second transmission attempt of the HARQ process 2 within the span from the transmission time interval TTI 25 to the end of the transmission time interval ⁇ 28 .
  • the enhanced Node B receives the second transmission attempt RV of the HARQ process 1, and attempts the RV according to the first transmission of the HARQ process 1.
  • the second transmission attempt RV of HARQ process 1 and the first transmission attempt of HARQ process 2 RV decode the UL transport block.
  • the enhanced Node B transmits a positive/negative ACK/NACK response related to the second transmission attempt of the HARQ process 1, and if the UL transport block is correctly decoded, a positive ACK response is sent, otherwise, a negative NACK response is sent. .
  • the enhanced Node B receives the second transmission attempt RV of the HARQ process 2, and attempts the RV, HARQ according to the first transmission of the HARQ process 1.
  • the second transmission attempt RV of process 1, the first transmission attempt RV of HARQ process 2, and the second transmission attempt of HARQ process 2 RV decode the UL transport block; within the transmission time interval 777 32, the enhanced node B transmits and The HARQ process 2 transmits a positive/negative ACK/NACK response for the second transmission attempt, and if the UL transport block is correctly decoded, a positive ACK response is sent, otherwise, a negative NACK response is sent.
  • the UE From the transmission time interval TTI 24 to the transmission time interval span of the transmission time interval ⁇ 32, the UE receives and decodes the positive/negative ACK/NACK response carried on the PHICH related to the second transmission attempt of the HARQ process 1; If the above response is a positive ACK response, the HARQ process 1 transmission is terminated. Otherwise, the UE performs the third transmission attempt of the HARQ process 1 within the span from the transmission time interval TTI 33 to the end of the transmission time interval ⁇ 36; Within the transmission time interval span from interval 32, the UE receives and decodes the affirmative/negative ACK/NACK response carried on the PHICH related to the second transmission attempt of the HARQ process 2; the HARQ process 2 transmission is terminated.
  • the enhanced Node B receives the third transmission attempt RV of the HARQ process 1, and attempts the RV according to the first transmission of the HARQ process 1.
  • the enhanced Node B transmits a positive/negative ACK/NACK response related to the 3rd transmission attempt of the HARQ process 1, and if the UL transport block is correctly decoded, a positive ACK response is sent, otherwise, a negative NACK is sent. Answer.
  • the UE receives and decodes the affirmative/negative ACK/NACK response carried on the PHICH related to the 3rd transmission attempt of the HARQ process 1; the HARQ process 1 transmission is terminated.
  • the enhanced Node B requires a subsequent retransmission attempt process of a certain HARQ process to change the corresponding uplink grant information
  • the UL grant information related to the HARQ process needs to be resent through the PDCCH.
  • the enhanced Node B needs to perform the following additional operations: Within the transmission time interval 777 3, the enhanced Node B transmits the UL grant information related to the HARQ process 1 again through the PDCCH.
  • the UE also needs to perform the following operations: The UE receives and decodes the UL grant information related to the HARQ process 1 carried on the PDCCH from the transmission time interval ⁇ 13 to the transmission time interval span of the ⁇ 16 end, and then receives the latest received according to the foregoing.
  • the UL grant information replaces the saved UL grant information associated with HARQ Process 1.
  • the enhanced Node B has the following features: It is assumed that the enhanced Node B correctly decodes the UL transport block and sends a positive ACK response related to a certain HARQ process, and if another HARQ process has not been terminated, the enhanced The Node B will also send a positive ACK response associated with another HARQ process to terminate the HARQ transmission process of the UL transport block on the two HARQ processes, respectively.
  • the HARQ process shown in the drawing is transmitted from the TTI numbered " ⁇ ", those skilled in the art should understand that the figure is only an exemplary description, HARQ.
  • the process can start from any numbered TTI, and the present invention is not limited to the HARQ process starting with the initial TTI.
  • the base station controls the UE to use the two or more HARQ processes to transmit the same UL transport block, and controls the enhanced uplink coverage by controlling the transmission time interval, the bundle length, and the maximum number of attempted transmissions of the HARQ process. Improved UL coverage and flexibility in resource allocation. It should be noted that, in the case of no conflict, the features of the embodiments and the embodiments of the present invention can be arbitrarily combined with each other.
  • FIG. 6 is a schematic structural diagram of an apparatus for enhancing uplink coverage according to an embodiment of the present invention. As shown in FIG. 6, the apparatus for enhancing uplink coverage in this example includes:
  • the control unit 60 is configured to control the UE to send the same UL transport block by using two or more HARQ process UEs.
  • FIG. 7 is a schematic structural diagram of another apparatus for enhancing uplink coverage according to an embodiment of the present invention. As shown in FIG. 7, the enhanced uplink of the present invention is based on the apparatus for enhancing uplink coverage shown in FIG. 6.
  • the apparatus for link coverage may further include a decoding unit 61 and a sending unit 62, where: a decoding unit 61, configured to decode a UL transport block of the HARQ process;
  • the sending unit 62 is configured to: after correctly decoding the UL transport block of the certain HARQ process, send a termination indication corresponding to the two or more HARQ processes to the UE.
  • the control unit 60 is further configured to: send, by the sending unit 62, the UL grant information corresponding to the two or more HARQ processes to the UE, and control the UE to send the foregoing by using the two or more HARQ processes.
  • the UL grant information includes:
  • the UE a bundle bundling enable flag, a bundle length, and a redundancy version RV transmitted by successive bundle subframes associated with the bundle.
  • the sending unit 62 is further configured to: when the UL grant information of a certain HARQ process belonging to the two or more HARQ processes changes, the network side sends the changed UL related to the certain HARQ process to the UE Grant information.
  • the apparatus for enhancing the uplink coverage of the present invention further includes:
  • a receiving unit configured to receive, by the UE, a redundancy version RV related to the UL transport block sent by a HARQ process that belongs to the two or more HARQ processes;
  • the decoding unit 61 is further configured to: use the received UE to pass the two or more
  • All RVs of all HARQ processes related to the UL transport block sent by the HARQ process decode the UL transport block, and send a decoding related to the certain HARQ process to the UE through the sending unit by setting a TTI Success or failure message.
  • the present invention also describes a base station comprising the apparatus for enhancing uplink coverage as shown in Figure 6 or Figure 7.
  • the base station of the present invention is generally an enhanced node ⁇
  • the base station transmits the same UL transport block by controlling the UE to use two or more HARQ processes, and controls the transmission time interval, the bundle length, and the maximum number of attempted transmissions of the HARQ process. Realizing the control of enhanced uplink coverage not only improves the coverage performance of the UL, but also realizes the flexibility of resource allocation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

本发明公开了一种增强上行链路覆盖的方法及装置、基站，其中，所述方法包括：网络侧控制用户设备UE使用两个以上混合自动重传请求HARQ进程发送同一上行链路UL传输块。本发明中，基站通过控制UE使用两个以上的HARQ进程发送同一UL传输块，并通过控制传输时间间隔TTI集束长度及HARQ进程的最大尝试传输次数，实现对增强上行链路覆盖的控制，不仅提高了UL的覆盖性能，也实现了资源分配的灵活性。

Description

增强上行链路覆盖的方法及装置、 基站 技术领域
本发明涉及增强上行链路覆盖技术， 尤其涉及一种增强上行链路覆盖 的方法及装置、 基站。 背景技术
长期演进（LTE, Long Term Evolution ) 系统的无线接入网络包括： 增 强的节点 B ( eNB )与用户设备 ( UE, User Equipment ), 其中， 增强的节 点 B与核心网络或其它网络相连， 并且通过无线接口与位于该节点 B所服 务的小区中的 UE实现相互通信。然而，在小区边缘，有时 UE会功率受限， 即它们的发送功率不足以达到目标的发送差错率，即所谓的误块率（BLER, Block Error Ratio )达不到目标值。 因此， 需要寻找用于增强功率受限的 UE 的覆盖的解决方案， 即需要寻找增强上行链路（UL, UpLink )覆盖的解决 方案。 目前， 传输时间间隔集束（ ΤΉ Bundling , Transmission Time Interval Bundling )是用于实现 UL覆盖增强的已有技术。 目前， 在第 3代合作伙伴 项目 （ 3GPP, 3rd Generation Partnership Project ) 的 LTE系统中， 传输时间 间隔集束思想已经被建议并采纳。
所谓 ΤΉ集束是指调度器为 UE分配超过 1个传输时间间隔的无线资 源。 使 UE在连续的传输时间间隔上连续发送同一传输块的冗余版本（RV, Redundancy Version ),并将上述操作看作是 UE的 1次传输尝试。其中， TTI 集束通过逻辑资源控制信令实现。 然而， ΤΉ集束在某种程度上限制了调度 器执行资源分配的灵活性， 尤其是在集束长度过大的情况。 到目前为止， 尚没有较好的解决方案，用于增强 UL的覆盖，同时兼顾资源分配的灵活性。 发明内容
有鉴于此， 本发明的主要目的在于提供一种增强上行链路覆盖的方法 及装置、 基站， 能提高 UL的覆盖性能， 并实现资源分配的灵活性。
为达到上述目的， 本发明的技术方案是这样实现的：
一种增强上行链路覆盖的方法， 包括：
网络侧控制 UE使用两个以上 HARQ进程发送同一 UL传输块。
优选地， 所述方法还包括：
所述网络侧在正确解码所述 UL传输块后 ,向所述 UE发送与所述两个 以上 HARQ进程——对应的终止指示。
优选地， 所述网络侧控制 UE使用两个以上 HARQ进程发送同一 UL 传输块， 为： 的 UL授予信息， 控制所述 UE使用所述两个以上 HARQ进程发送所述同 一 UL传输块。
优选地， 所述 UL授予信息包括：
单个传输时间间隔 ΤΉ时频资源块分配信息、 调制编码方案、 功率控 制命令以及 HARQ进程集束标志。 对应的 UL授予信息之前， 所述方法还包括：
所述网络侧通过专有系统消息将下述至少一种信息通知所述 UE:
TTI集束使能标志、集束长度以及与 ΤΉ集束有关的连续的集束子帧所 发送的冗余版本 RV。
优选地， 所述 HARQ进程集束标志表示当前 HARQ进程的 UL授予信 息是否与前面 HARQ进程的 UL授予信息对应相同 UL传输块。
优选地， 所述方法还包括： 在属于所述两个以上 HARQ进程的某 HARQ进程的 UL授予信息改变 时， 所述网络侧向所述 UE发送与所述某 HARQ进程有关的改变后的 UL 授予信息。
优选地， 所述方法还包括：
所述网络侧接收到所述 UE通过属于所述两个以上 HARQ进程的某 HARQ进程发送的与所述 UL传输块有关的冗余版本 RV后，利用所接收到 关的 RV解码所述 UL传输块，并在设定 TTI向所述 UE反馈与所述某 HARQ 进程有关的解码成功与否的消息。
优选地， 所述网络侧为基站。
一种增强上行链路覆盖的装置， 包括：
控制单元， 用于控制 UE使用两个以上的 HARQ进程 UE发送同一 UL 传输块。
优选地， 所述装置还包括解码单元和发送单元， 其中：
解码单元， 用于解码 HARQ进程的 UL传输块；
发送单元， 在正确解码某 HARQ进程的 UL传输块后， 向所述 UE发 送与所述两个以上 HARQ进程——对应的终止指示。
优选地， 所述控制单元还用于， 由所述发送单元向所述 UE发送与所述 两个以上 HARQ进程——对应的 UL授予信息， 控制所述 UE使用所述两 个以上 HARQ进程发送所述同一 UL传输块。
优选地， 所述 UL授予信息包括：
单个 ΤΉ 中的时频资源块分配信息、 调制编码方案、 功率控制命令以 及 HARQ进程集束标志。 一对应的 UL授予信息之前，还用于，通过专有系统消息将下述至少一种信 息通知所述 UE:
TTI集束使能标志、集束长度以及与 ΤΉ集束有关的连续的集束子帧发 送的冗余版本 RV。
优选地， 所述发送单元还用于， 在属于所述两个以上 HARQ进程的某 HARQ进程的 UL授予信息改变时， 所述网络侧向所述 UE发送与所述某 HARQ进程有关的改变后的 UL授予信息。
优选地， 所述装置还包括：
接收单元， 用于接收到所述 UE通过属于所述两个以上 HARQ进程的 某 HARQ进程发送的与所述 UL传输块有关的冗余版本 RV;
所述解码单元还用于， 利用所接收到的所述 UE通过所述两个以上
HARQ进程发送的所有与所述 UL传输块有关的所有 HARQ进程的 RV解 码所述 UL传输块，并在设定 TTI向通过所述发送单元向所述 UE反馈与所 述某 HARQ进程有关的解码成功与否的消息。
一种基站， 前述增强上行链路覆盖的装置。
本发明中，基站通过控制 UE使用两个以上的 HARQ进程发送同一 UL 传输块， 并通过控制传输时间间隔 ΤΉ集束长度及 HARQ进程的最大尝试 传输次数， 实现对增强上行链路覆盖的控制， 不仅提高了 UL的覆盖性能， 也实现了资源分配的灵活性。 附图说明
图 1为冗余版本 RV的示意图；
图 2为本发明实施例的通过 HARQ进程集束实现上行 UL传输块的首 传的示意图；
图 3为本发明实施例的通过 HARQ进程集束与传输时间间隔 TTI集束 实现上行 UL传输块的首传的示意图；
图 4为本发明实施例的通过 HARQ进程集束实现上行 UL传输块的重 传的示意图；
图 5为本发明实施例的通过 HARQ进程集束与传输时间间隔 TTI集束 实现上行 UL传输块的重传的示意图；
图 6为本发明实施例的增强上行 UL覆盖的装置的组成结构示意图； 图 7为本发明实施例的另一增强上行 UL覆盖的装置的组成结构示意 图。 具体实施方式
本发明的基本思想为： 基站通过控制 UE使用两个以上的 HARQ进程 发送同一 UL传输块， 并通过控制传输时间间隔 ΤΉ集束长度及 HARQ进 程的最大尝试传输次数， 实现对增强上行链路覆盖的控制， 不仅提高了 UL 的覆盖性能， 也实现了资源分配的灵活性。
为使本发明的目的， 技术方案和优点更加清楚明白， 以下举实施例并 参照附图， 对本发明进一步详细说明。
LTE系统采用增量冗余（IR, Incremental Redundancy )形式的混合自 动重传请求（HARQ, Hybrid Automatic Repeat reQuest )来实现物理层的差 错控制机制，以保证服务质量要求。其中，为了实现 IR形式的 HARQ传输， RV设计被 LTE系统采纳并使用。 而 RV是指从信道编码器输出序列的预定 比特位置开始逐一循环输出的预定长度的比特序列； 其中， 所述预定长度 与资源分配大小及调制方案有关。 图 1为冗余版本的示意图， 如图 1所示， 每个 RV定义了一个传输开始点， 首次传送和各次的 HARQ重传分别使用 不同的 RV, 用于实现冗余比特的逐步积累， 从而完成 IR形式的 HARQ操 作。
实施例一
本示例中， 假设增强的节点 B服务于 UE, 并且上行业务已被激活。 图 2为本发明实施例的通过 HARQ进程集束实现上行 UL传输块的首 传的示意图， 如图 2所示， 在传输时间间隔 m 范围内， 增强的节点 B 通过包含于下行链路（ DL, Down Link )带宽的物理下行控制信道（ PDCCH, Physical Downlink Control CHannel )承载的关于 HARQ进程 1的 UL授予 信息为 UE待传输上行传输块分配 HARQ进程 1 (与传输时间间隔 TT 5对 应）资源； 类似地， 在传输时间间隔 7776范围内， 增强的节点 B通过关于 HARQ进程 2的 UL授予信息为 UE待传输 UL传输块分配 HARQ进程 2
(与传输时间间隔 Γ77 7对应）资源。 其中， 所述 UL授予信息包括： 单个 7T7 中的时频资源块分配信息、 调制编码方案、 功率控制命令以及 HARQ 进程集束标志； 其中， HARQ进程集束标志表示当前 HARQ进程的 UL授 予信息是否与前面 HARQ进程的 UL授予信息对应相同传输块， 具体地，
"0"表示当前 HARQ进程的 UL授予信息与前面 HARQ进程的 UL授予信 息对应不同传输块， " 1" 表示对应相同的传输块。 以当前实施例为例， 与 HARQ进程 1有关的 HARQ进程集束标志被置为 "0" , 与 HARQ进程 2有 关的 HARQ进程集束标志被置为 "1" , 即 HARQ进程 1与 HARQ进程 2 的 UL授予信息对应相同的 UL传输块。
UE在传输时间间隔 ΤΉ 1起始至传输时间间隔 ΤΠ 4结束的传输时间 间隔跨度内执行以下操作： 步驟一， 接收并解码传输时间间隔 TTI 1 DL带 宽部分所包含的所述 PDCCH承载的与 HARQ进程 1有关的 UL授予信息； 这里，假设 UE正确接收并解码了所述 UL授予信息。步驟二，根据与 HARQ 进程 1有关的 HARQ进程集束标志判断当前是否发送新的 UL传输块； 这 里， 由于所述与 HARQ进程 1有关的 HARQ进程集束标志为 "0" , 因此， 确定发送新的 UL传输块。 UE在传输时间间隔 Γ77 5内执行以下操作： 根 据与 HARQ进程 1有关的 UL授予信息发送所述新的 UL传输块， 所述 UL 授予信息包括： 单个 ΤΠ时频资源块分配信息、 调制编码方案以及功率控 制命令。 UE在传输时间间隔 TTI 6起始至传输时间间隔 TTI 9结束的传输时间 间隔跨度内执行以下操作： 步驟一， 接收并解码传输时间间隔 7776 DL带 宽部分所包含的所述 PDCCH承载的与 HARQ进程 2有关的 UL授予信息； 这里，假设 UE正确接收并解码了所述 UL授予信息。步驟二，根据与 HARQ 进程 2有关的 HARQ进程集束标志判断当前是否发送新的 UL传输块； 这 里， 由于所述与 HARQ进程 2有关的 HARQ进程集束标志为 "1" , 因此， 确定发送与前面 HARQ进程 1相同的 UL传输块。 UE在传输时间间隔 777 10内执行以下操作： 根据与 HARQ进程 2有关的 UL授予信息发送所述与 进程 1相同的 UL传输块， 所述 UL授予信息包括： 单个传输时间间隔时频 资源块分配信息， 调制编码方案与功率控制命令。
实施例二
本示例中， 假设增强的节点 B服务于 UE, 并且上行业务已被激活。 增强的节点 B通过承载于 UE专有系统消息中的射频资源控制信令通 知 UE以下信息： ΤΉ集束使能标志、 集束长度以及与 ΤΉ集束有关的连续 的集束子帧发送的 RV。 具体地， 本示例中， 假设 ΤΉ集束使能标志被置为 "1" , 表示 ΤΉ集束功能被使能， 集束长度为 4, 与 ΤΉ集束有关连续的集 束子帧发送的冗余版本为： {RV0, RV1, RV2,RV3}。
UE接收并解码所述系统消息中的射频资源控制信令， 获取并保存以下 信息： ΤΉ集束使能标志、集束长度以及与 ΤΉ集束有关的连续的集束子帧 发送的 RV信息。
图 3为本发明实施例的通过 HARQ进程集束与传输时间间隔集束实现 上行 UL传输块的首传的示意图， 如图 3所示， 在传输时间间隔 777 范围 内， 增强的节点 B通过包含于 DL带宽的 PDCCH承载的关于 HARQ进程 1的 UL授予信息为 UE待传输上行传输块分配 HARQ进程 1 (与传输时间 间隔 7775对应） 资源； 类似地， 在传输时间间隔 7779范围内， 增强的节 点 B通过关于 HARQ进程 2的 UL授予信息为 UE待传输 UL传输块分配 HARQ进程 2 (与传输时间间隔 777 3对应）资源。 这里， UL授予信息包 括： 单个传输时间间隔时频资源块分配信息、 调制编码方案、 功率控制命 令以及 HARQ进程集束标志； 其中， HARQ进程集束标志表示当前 HARQ 进程 UL授予信息是否与前面 HARQ进程的 UL授予信息对应相同传输块， 具体地， "0"表示当前 HARQ进程上行授予信息与前面 HARQ进程的上行 授予信息对应不同传输块， " 1" 表示对应相同传输块。 以当前实施例为例， 与 HARQ进程 1有关的 HARQ进程集束标志被置为 "0" , 与 HARQ进程 2 有关的 HARQ进程集束标志被置为 "Γ , 即 HARQ进程 1与 HARQ进程 2 的 UL授予对应相同的待传输的 UL传输块。
UE在传输时间间隔 ΤΉ 1起始至传输时间间隔 ΤΠ 4结束的传输时间 间隔跨度内执行以下操作： 步驟一， 接收并解码传输时间间隔 TTI 1 DL带 宽部分所包含的所述 PDCCH承载的与 HARQ进程 1有关的 UL授予信息； 这里，假设 UE正确接收并解码了所述 UL授予信息。步驟二，根据与 HARQ 进程 1有关的 HARQ进程集束标志判断当前是否发送新的 UL传输块； 这 里， 由于所述与 HARQ进程 1有关的 HARQ进程集束标志为 "0" , 因此， 确定发送新的 UL传输块。步驟三，根据 TTI集束使能标志判断当前是否使 能传输时间间隔集束功能， 如果判断结果为是， 则获取 ΤΉ集束长度以及 与 ΤΉ集束有关的连续的集束子帧发送的 RV信息； 这里， 当前 ΤΉ集束 功能被使能， 并且集束长度为 4, 与 ΤΉ集束有关的连续的集束子帧发送的 RV为： {RVO, RV1, RV2, RV3] 。
UE在传输时间间隔 TTI 5开始至传输时间间隔 ΤΠ 8结束的传输时间 间隔跨度内执行以下操作： 根据与 HARQ进程 1有关的 UL授予信息以及 ΤΉ集束信息发送所述新的 UL传输块； 所述 UL授予信息包括： 单个传输 时间间隔时频资源块分配信息、调制编码方案以及功率控制命令， TTI集束 信息包括： 集束长度、 连续的集束子帧发送的 RV信息。 具体地， 在传输时 间间隔 ΤΠ 5发送上行传输块 RV0, 在传输时间间隔 ΤΠ 6发送上行传输块 RV1 , 在传输时间间隔 ΤΠ 7发送上行传输块 RV2, 在传输时间间隔 TTI 8 发送上行传输块 RV3。
UE在传输时间间隔 TTI 9开始至传输时间间隔 TTI 12结束的传输时间 间隔跨度内执行以下操作： 步驟一， 接收并解码传输时间间隔 TTI 9 DL带 宽部分所包含的所述 PDCCH承载的与 HARQ进程 2有关的 UL授予信息； 这里，假设 UE正确接收并解码了所述 UL授予信息。步驟二，根据与 HARQ 进程 2有关的 HARQ进程集束标志判断当前是否发送新的 UL传输块； 具 体地， 由于所述与 HARQ进程 2有关的 HARQ进程集束标志为 " 1" , 因此， 确定发送与进程 1相同的 UL传输块。步驟三，根据传输时间间隔 ΤΉ集束 使能标志判断当前是否使能 ΤΉ集束功能，如果判断结果为是，则获取 TTI 集束长度以及与传输时间间隔 ΤΉ集束有关的连续的集束子帧发送的 RV信 息； 这里， 当前传输时间间隔 ΤΉ集束功能被使能， 并且集束长度为 4, 连 续的集束子帧发送的 RV信息为： {RV0,RV1,RV2, RV3}。
UE在传输时间间隔 ΤΉ 13开始至传输时间间隔 ΤΠ 16结束的传输时 间间隔跨度内执行以下操作： 根据与 HARQ进程 2有关的 UL授予信息以 及传输时间间隔 TTI集束信息发送所述与 HARQ进程 1相同的 UL传输块； 其中， 所述 UL授予信息包括： 单个传输时间间隔时频资源块分配信息、调 制编码方案以及功率控制命令， 传输时间间隔 ΤΉ集束信息包括： 集束长 度、 连续的集束子帧发送的 RV信息。 具体地， 在传输时间间隔 发 送传输块 RV0, 在传输时间间隔 ΤΠ 14发送传输块 RV1 , 在传输时间间隔 m 5发送传输块 RV2, 在传输时间间隔 发送传输块 RV3。
实施例三
本示例中， 假设增强的节点 B服务于 UE, 并且上行业务已被激活。 假 设按照实施例一所述方法， UL传输块在 2个 HARQ进程中的第 1次传输 尝试时已完成。
图 4为本发明实施例的通过 HARQ进程集束实现上行 UL传输块的重 传的示意图，如图 4所示，从传输时间间隔 777 开始至传输时间间隔 ΤΉ 4 结束的传输时间间隔跨度内， 增强的节点 B接收 HARQ进程 1的第 1次传 输尝试 RV, 并根据 HARQ进程 1的第 1次传输尝试 RV解码 UL传输块； 在传输时间间隔 TTI 5内, 增强的节点 B发送与 HARQ进程 1第 1次传输 尝试有关肯定 /否定（ ACK/NACK )应答， 如果 UL传输块被正确解码， 则 发送肯定的 ACK应答， 否则， 发送否定的 NACK应答。 从传输时间间隔 TTI 6开始至传输时间间隔 ΤΠ 9结束的传输时间间隔跨度内， 增强的节点 B接收 HARQ进程 2的第 1次传输尝试 RV, 并根据 HARQ进程 1的第 1 次传输尝试 RV以及 HARQ进程 2的第 1次传输尝试 RV解码 UL传输块； 在传输时间间隔 TTI 10内,增强的节点 B发送与 HARQ进程 2第 1次传输 尝试有关肯定 /否定的 ACK/NACK应答，如果 UL传输块被正确解码，发送 肯定 ACK应答， 否则， 发送否定 NACK应答。
从传输时间间隔 TTI 5开始至传输时间间隔 TTI 10结束的传输时间间隔 跨度内， UE接收并解码承载于物理 HARQ指示信道（PHICH, Physical HARQ Indicator Channel )上的与 HARQ进程 1第 1次传输尝试有关的肯定 /否定 ACK/NACK应答； 如果上述应答为肯定的 ACK应答， 则 HARQ进 程 1传输终止， 否则， 在传输时间间隔 777 内， UE执行 HARQ进程 1 的第 2次传输尝试。 从传输时间间隔 ΤΠ 10开始至传输时间间隔 TTI 15结 束的传输时间间隔跨度内， UE接收并解码承载于 PHICH上的与 HARQ进 程 2第 1次传输尝试有关的肯定 /否定 ACK/NACK应答； 如果上述应答为 肯定的 ACK应答， HARQ进程 2传输终止， 否则， 在传输时间间隔 777 6 内， UE执行 HARQ进程 2的第 2次传输尝试。 从传输时间间隔 TTI 11开始至传输时间间隔 ΤΠ 14结束的传输时间间 隔跨度内， 增强的节点 B接收 HARQ进程 1的第 2次传输尝试 RV, 并根 据 HARQ进程 1的第 1次传输尝试 RV, HARQ进程 1的第 2次传输尝试 RV, 以及 HARQ进程 2的第 1次传输尝试 RV解码 UL传输块。 在传输时 间间隔 777 5内，增强的节点 B发送与 HARQ进程 1第 2次传输尝试有关 肯定 /否定的 ACK/NACK应答，如果 UL传输块被正确解码，发送肯定 ACK 应答， 否则， 发送否定 NACK应答。 从传输时间间隔 开始至传输时 间间隔 ΤΠ 19结束的传输时间间隔跨度内，增强的节点 B接收 HARQ进程 2的第 2次传输尝试 RV,并根据 HARQ进程 1的第 1次传输尝试 RV, HARQ 进程 1的第 2次传输尝试 RV, HARQ进程 2的第 1次传输尝试 RV以及 HARQ进程 2的第 2次传输尝试 RV解码 UL传输块； 在传输时间间隔 777 20内， 增强的节点 B发送与 HARQ进程 2第 2次传输尝试有关的肯定 /否 定的 ACK/NACK应答， 如果 UL传输块被正确解码， 则发送肯定的 ACK 应答， 否则， 发送否定的 NACK应答。
从传输时间间隔 TTI 15开始至传输时间间隔 ΤΠ 20结束的传输时间间 隔跨度内， UE接收并解码承载于 PHICH上的与 HARQ进程 1第 2次传输 尝试有关的肯定 /否定 ACK/NACK应答；如果上述应答为肯定的 ACK应答， 则 HARQ进程 1传输终止， 否则， 从传输时间间隔 TTI 33开始至传输时间 间隔 ΤΠ 36结束的跨度内， UE执行 HARQ进程 1的第 3次传输尝试； 从 传输时间间隔 ΤΠ 32开始的传输时间间隔跨度内， UE接收并解码承载于 PHICH上的与 HARQ进程 2第 2次传输尝试有关的肯定 /否定 ACK/NACK 应答； HARQ进程 2传输终止。
从传输时间间隔 TT121开始至传输时间间隔 ΤΠ 24结束的传输时间间 隔跨度内， 增强的节点 B接收 HARQ进程 1的第 3次传输尝试 RV, 并根 据 HARQ进程 1的第 1次传输尝试 RV, HARQ进程 1的第 2次传输尝试 RV, HARQ进程 1的第 3次传输尝试 RV, HARQ进程 2的第 1次传输尝 试 RV以及 HARQ进程 2的第 2次传输尝试 RV解码 UL传输块。在传输时 间间隔 77725内，增强的节点 B发送与 HARQ进程 1第 3次传输尝试有关 肯定 /否定的 ACK/NACK应答，如果 UL传输块被正确解码，发送肯定 ACK 应答， 否则， 发送否定 NACK应答。 从传输时间间隔 Γ7725开始的传输时 间间隔跨度内， UE接收并解码承载于 PHICH上的与 HARQ进程 1第 3次 传输尝试有关的肯定 /否定 ACK/NACK应答； HARQ进程 1传输终止。
如果增强的节点 B要求某个 HARQ进程后续的重新传输尝试过程改变 相应的上行授予信息 （包括传输时间间隔时频资源分配、 调制编码方案与 功率控制；)，增强的节点 B需要通过 PDCCH再次发送与所述 HARQ进程有 关的 UL授予信息。 例如， 假设增强的节点 B要求 HARQ进程 1第 2次传 输尝试和第 3次传输尝试与 HARQ进程 1第 1次传输尝试的 UL授予信息 不同， 增强的节点 B还需额外执行以下操作： 在传输时间间隔 777 7内， 增 强的节点 B通过 PDCCH再次发送与 HARQ进程 1有关的 UL授予信息。 UE还需额外执行以下操作： 从传输时间间隔 Γ77 7开始至 777 10结束的传 输时间间隔跨度内， UE接收并解码承载于 PDCCH上的与 HARQ进程 1有 关 UL授予信息， 然后， 根据上述最新接收的 UL授予信息替换保存的与 HARQ进程 1有关 UL授予信息。
根据本实施例可知， 增强的节点 B具有以下特征： 假设增强的节点 B 正确解码了 UL传输块，并发送了与某一个 HARQ进程有关的肯定 ACK应 答， 如果另一个 HARQ进程尚未终止， 则增强的节点 B还将发送与另一个 HARQ进程有关的肯定 ACK应答，以分别终止 UL传输块在两个 HARQ进 程上的 HARQ传输过程。
实施例四
本示例中， 假设增强的节点 B服务于 UE, 并且上行业务已被激活。 假 设按照实施例二所述方法， UL传输块在 2个 HARQ进程中的第 1次传输 尝试已经被完成。
图 5为本发明实施例的通过 HARQ进程集束与传输时间间隔集束实现 上行 UL传输块的重传的示意图， 如图 5所示， 从传输时间间隔 777 开始 至传输时间间隔 ΤΠ 7结束的传输时间间隔跨度内， 增强的节点 B接收 HARQ进程 1的第 1次传输尝试 RV, 并根据 HARQ进程 1的第 1次传输 尝试 RV解码 UL传输块； 在传输时间间隔 Γ77 δ内， 增强的节点 Β发送与 HARQ进程 1第 1次传输尝试有关肯定 /否定的 ACK/NACK应答，如果 UL 传输块被正确解码， 则发送肯定的 ACK应答， 否则， 发送否定的 NACK 应答。从传输时间间隔 7779开始至传输时间间隔 ΤΉ 15结束的传输时间间 隔跨度内， 增强的节点 B接收 HARQ进程 2的第 1次传输尝试 RV, 并根 据 HARQ进程 1的第 1次传输尝试 RV以及 HARQ进程 2的第 1次传输尝 试 RV解码 UL传输块； 在传输时间间隔 TTI 16内， 增强的节点 B发送与 HARQ进程 2第 1次传输尝试有关肯定 /否定的 ACK/NACK应答，如果 UL 传输块被正确解码， 发送肯定 ACK应答， 否则， 发送否定 NACK应答。
从传输时间间隔 TTI 8开始至传输时间间隔 TTI 16结束的传输时间间隔 跨度内， UE接收并解码承载于 PHICH上的与 HARQ进程 1第 1次传输尝 试有关的肯定 /否定 ACK/NACK应答； 如果上述应答为肯定的 ACK应答， 则 HARQ进程 1传输终止， 否则， 从传输时间间隔 777 7开始至传输时间 间隔 ΤΠ 20结束的跨度内， UE执行 HARQ进程 1的第 2次传输尝试。 从 传输时间间隔 ΤΠ 16开始至传输时间间隔 TTI 24结束的传输时间间隔跨度 内， UE接收并解码承载于 PHICH上的与 HARQ进程 2第 1次传输尝试有 关的肯定 /否定 ACK/NACK应答；如果上述应答为肯定的 ACK应答， HARQ 进程 2传输终止，否则，从传输时间间隔 TTI 25开始至传输时间间隔 ΤΠ 28 结束的跨度内， UE执行 HARQ进程 2的第 2次传输尝试。 从传输时间间隔 777 7开始至传输时间间隔 ΤΠ 23结束的传输时间间 隔跨度内， 增强的节点 B接收 HARQ进程 1的第 2次传输尝试 RV, 并根 据 HARQ进程 1的第 1次传输尝试 RV, HARQ进程 1的第 2次传输尝试 RV, 以及 HARQ进程 2的第 1次传输尝试 RV解码 UL传输块。 在传输时 间间隔 77724内，增强的节点 B发送与 HARQ进程 1第 2次传输尝试有关 肯定 /否定的 ACK/NACK应答，如果 UL传输块被正确解码，发送肯定 ACK 应答， 否则， 发送否定 NACK应答。 从传输时间间隔 Γ7725开始至传输时 间间隔 TTI 31结束的传输时间间隔跨度内，增强的节点 B接收 HARQ进程 2的第 2次传输尝试 RV,并根据 HARQ进程 1的第 1次传输尝试 RV, HARQ 进程 1的第 2次传输尝试 RV, HARQ进程 2的第 1次传输尝试 RV以及 HARQ进程 2的第 2次传输尝试 RV解码 UL传输块； 在传输时间间隔 777 32内， 增强的节点 B发送与 HARQ进程 2第 2次传输尝试有关的肯定 /否 定的 ACK/NACK应答， 如果 UL传输块被正确解码， 则发送肯定的 ACK 应答， 否则， 发送否定的 NACK应答。
从传输时间间隔 TTI 24开始至传输时间间隔 ΤΠ 32结束的传输时间间 隔跨度内， UE接收并解码承载于 PHICH上的与 HARQ进程 1第 2次传输 尝试有关的肯定 /否定 ACK/NACK应答；如果上述应答为肯定的 ACK应答， 则 HARQ进程 1传输终止， 否则， 从传输时间间隔 TTI 33开始至传输时间 间隔 ΤΠ 36结束的跨度内， UE执行 HARQ进程 1的第 3次传输尝试； 从 传输时间间隔 ΤΠ 32开始的传输时间间隔跨度内， UE接收并解码承载于 PHICH上的与 HARQ进程 2第 2次传输尝试有关的肯定 /否定 ACK/NACK 应答； HARQ进程 2传输终止。
从传输时间间隔 TTI 33开始至传输时间间隔 ΤΠ 39结束的传输时间间 隔跨度内， 增强的节点 B接收 HARQ进程 1的第 3次传输尝试 RV, 并根 据 HARQ进程 1的第 1次传输尝试 RV, HARQ进程 1的第 2次传输尝试 RV, HARQ进程 1的第 3次传输尝试 RV, HARQ进程 2的第 1次传输尝 试 RV以及 HARQ进程 2的第 2次传输尝试 RV解码 UL传输块。在传输时 间间隔 ΤΠ40内，增强的节点 B发送与 HARQ进程 1的第 3次传输尝试有 关肯定 /否定的 ACK/NACK应答， 如果 UL传输块被正确解码， 发送肯定 ACK应答， 否则，发送否定 NACK应答。从传输时间间隔 77740开始的传 输时间间隔跨度内， UE接收并解码承载于 PHICH上的与 HARQ进程 1的 第 3次传输尝试有关的肯定 /否定 ACK/NACK应答； HARQ进程 1传输终 止。
如果增强的节点 B要求某个 HARQ进程后续的重新传输尝试过程改变 相应的上行授予信息， 则需要通过 PDCCH再次发送与所述 HARQ进程有 关的 UL授予信息。 例如， 假设增强的节点 B要求 HARQ进程 1第 2次传 输尝试和第 3次传输尝试与 HARQ进程 1的第 1次传输尝试的 UL授予信 息不同，增强的节点 B还需额外执行以下操作： 在传输时间间隔 777 3内， 增强的节点 B通过 PDCCH再次发送与 HARQ进程 1有关的 UL授予信息。 UE还需额外执行以下操作： 从传输时间间隔 ΤΠ 13开始至 ΤΠ 16结束的 传输时间间隔跨度内， UE接收并解码承载于 PDCCH上的与 HARQ进程 1 有关 UL授予信息， 然后， 根据上述最新接收的 UL授予信息替换保存的与 HARQ进程 1有关 UL授予信息。
根据本实施例可知， 增强的节点 B具有以下特征： 假设增强的节点 B 正确解码了 UL传输块，并发送了与某一个 HARQ进程有关的肯定 ACK应 答， 如果另一个 HARQ进程尚未终止， 则增强的节点 B还将发送与另一个 HARQ进程有关的肯定 ACK应答，以分别终止 UL传输块在两个 HARQ进 程上的 HARQ传输过程。
本发明中， 虽然附图中所示的 HARQ进程都是从编号为 "Γ 的 TTI 开始传送的， 但本领域技术人员应当理解， 图中仅为示例性的说明， HARQ 进程可以从任一编号的 TTI开始传送， 本发明中并不限于 HARQ进程从初 始的 TTI开始传送。
本发明中，基站通过控制 UE使用两个以上的 HARQ进程发送同一 UL 传输块， 并通过控制传输时间间隔 ΤΉ集束长度及 HARQ进程的最大尝试 传输次数， 实现对增强上行链路覆盖的控制， 不仅提高了 UL的覆盖性能， 也实现了资源分配的灵活性。 需要说明的是， 在不沖突的情况下， 本发明 实施例及实施例中的各特征可以相互任意组合。
图 6为本发明实施例的增强上行链路覆盖的装置的组成结构示意图， 如图 6所示， 本示例的增强上行链路覆盖的装置包括：
控制单元 60, 用于控制 UE使用两个以上的 HARQ进程 UE发送同一 UL传输块。
图 7 为本发明实施例的另一增强上行链路覆盖的装置的组成结构示意 图， 如图 7所示， 在图 6所示的增强上行链路覆盖的装置的基础上， 本发 明的增强上行链路覆盖的装置还可以包括解码单元 61和发送单元 62,其中： 解码单元 61 , 用于解码 HARQ进程的 UL传输块；
发送单元 62, 用于在正确解码某 HARQ进程的 UL传输块后， 向所述 UE发送与所述两个以上 HARQ进程——对应的终止指示。 上述控制单元 60还用于， 由所述发送单元 62向所述 UE发送与所述两个以上 HARQ进 程——对应的 UL授予信息， 控制所述 UE使用所述两个以上 HARQ进程 发送所述同一 UL传输块。
所述 UL授予信息包括：
单个 ΤΉ 中的时频资源块分配信息、 调制编码方案、 功率控制命令以 及 HARQ进程集束标志。 的 UL授予信息之前，还用于，通过专有系统消息将下述至少一种信息通知 所述 UE: ΤΉ集束使能标志、 集束长度以及与 ΤΉ集束有关的连续的集束 子帧发送的冗余版本 RV。
所述发送单元 62还用于，在属于所述两个以上 HARQ进程的某 HARQ 进程的 UL授予信息改变时， 所述网络侧向所述 UE发送与所述某 HARQ 进程有关的改变后的 UL授予信息。
在图 6或图 7所示增强上行链路覆盖的装置的基础上， 本发明的增强 上行链路覆盖的装置还包括：
接收单元， 用于接收到所述 UE通过属于所述两个以上 HARQ进程的 某 HARQ进程发送的与所述 UL传输块有关的冗余版本 RV;
所述解码单元 61还用于， 利用所接收到的所述 UE通过所述两个以上
HARQ进程发送的所有与所述 UL传输块有关的所有 HARQ进程的 RV解 码所述 UL传输块，并在设定 TTI向通过所述发送单元向所述 UE反馈与所 述某 HARQ进程有关的解码成功与否的消息。
本领域技术人员应当理解， 图 6及图 7所示的增强上行链路覆盖的装 置涉及的处理单元的功能能通过硬件电路实现， 或由处理器执行相应的软 件而实现。 上述各处理单元的功能， 可结合前述本发明增强上行链路覆盖 的方法的相关实施例的描述而理解。
本发明还记载了一种基站， 所述基站包括图 6或图 7所示的增强上行 链路覆盖的装置。
本发明的基站， 一般为增强节点^
以上所述， 仅为本发明的较佳实施例而已， 并非用于限定本发明的保 护范围。
工业实用性
基站通过控制 UE使用两个以上的 HARQ进程发送同一 UL传输块， 并通过控制传输时间间隔 ΤΉ集束长度及 HARQ进程的最大尝试传输次数， 实现对增强上行链路覆盖的控制， 不仅提高了 UL的覆盖性能，也实现了资 源分配的灵活性。

Claims

权利要求书
1、 一种增强上行链路覆盖的方法， 所述方法包括：
网络侧控制用户设备 UE使用两个以上混合自动重传请求 HARQ进程 发送同一上行链路 UL传输块。
2、 根据权利要求 1所述的方法， 其中， 所述方法还包括：
所述网络侧在正确解码所述 UL传输块后 ,向所述 UE发送与所述两个 以上 HARQ进程——对应的终止指示。
3、 根据权利要求 1所述的方法， 其中， 所述网络侧控制 UE使用两个 以上 HARQ进程发送同一 UL传输块， 为：
一 UL传输块。
4、 根据权利要求 3所述的方法， 其中， 所述 UL授予信息包括： 单个传输时间间隔 ΤΉ时频资源块分配信息、 调制编码方案、 功率控 制命令以及 HARQ进程集束标志。
5、 根据权利要求 3所述的方法， 其中， 所述网络侧向所述 UE发送与 所述两个以上 HARQ进程——对应的 UL授予信息之前，所述方法还包括： 所述网络侧通过专有系统消息将下述至少一种信息通知所述 UE:
TTI集束使能标志、集束长度以及与 ΤΉ集束有关的连续的集束子帧所 发送的冗余版本 RV。
6、根据权利要求 4所述的方法， 其中， 所述 HARQ进程集束标志表示 当前 HARQ进程的 UL授予信息是否与前面 HARQ进程的 UL授予信息对 应相同 UL传输块。
7、 根据权利要求 3至 6任一项所述方法， 其中， 所述方法还包括： 在属于所述两个以上 HARQ进程的某 HARQ进程的 UL授予信息改变 时， 所述网络侧向所述 UE发送与所述某 HARQ进程有关的改变后的 UL 授予信息。
8、 根据权利要求 3至 6任一项所述方法， 其中， 所述方法还包括： 所述网络侧接收到所述 UE通过属于所述两个以上 HARQ进程的某 HARQ进程发送的与所述 UL传输块有关的冗余版本 RV后，利用所接收到 关的 RV解码所述 UL传输块，并在设定 TTI向所述 UE反馈与所述某 HARQ 进程有关的解码成功与否的消息。
9、根据权利要求 1至 6任一项所述的方法，其中， 所述网络侧为基站。
10、 一种增强上行链路覆盖的装置， 所述装置包括：
控制单元， 用于控制 UE使用两个以上的 HARQ进程 UE发送同一 UL 传输块。
11、 根据权利要求 10所述的装置， 所述装置还包括解码单元和发送单 元， 其中：
解码单元， 用于解码 HARQ进程的 UL传输块；
发送单元， 在正确解码某 HARQ进程的 UL传输块后， 向所述 UE发 送与所述两个以上 HARQ进程——对应的终止指示。
12、 根据权利要求 10所述的装置， 其中， 所述控制单元还用于， 由所 予信息， 控制所述 UE使用所述两个以上 HARQ进程发送所述同一 UL传 输块。
13、 根据权利要求 12所述的装置， 其中， 所述 UL授予信息包括： 单个 ΤΉ 中的时频资源块分配信息、 调制编码方案、 功率控制命令以 及 HARQ进程集束标志。
14、 根据权利要求 12所述的装置， 其中， 所述发送单元向所述 UE发 送与所述两个以上 HARQ进程——对应的 UL授予信息之前， 还用于， 通 过专有系统消息将下述至少一种信息通知所述 UE:
TTI集束使能标志、集束长度以及与 ΤΉ集束有关的连续的集束子帧发 送的冗余版本 RV。
15、 根据权利要求 12至 14任一项所述的装置， 其中， 所述发送单元 还用于， 在属于所述两个以上 HARQ进程的某 HARQ进程的 UL授予信息 改变时， 所述网络侧向所述 UE发送与所述某 HARQ进程有关的改变后的 UL授予信息。
16、 根据权利要求 12至 14任一项所述的装置， 其中， 所述装置还包 括：
接收单元， 用于接收到所述 UE通过属于所述两个以上 HARQ进程的 某 HARQ进程发送的与所述 UL传输块有关的冗余版本 RV;
所述解码单元还用于， 利用所接收到的所述 UE 通过所述两个以上
HARQ进程发送的所有与所述 UL传输块有关的所有 HARQ进程的 RV解 码所述 UL传输块，并在设定 ΤΉ向通过所述发送单元向所述 UE反馈与所 述某 HARQ进程有关的解码成功与否的消息。
17、 一种基站， 所述基站包括权利要求 10至 16任一项所述增强上行 链路覆盖的装置。
PCT/CN2012/077162 2012-03-15 2012-06-19 增强上行链路覆盖的方法及装置、基站 WO2013135015A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201210069078.XA CN103313270B (zh) 2012-03-15 2012-03-15 增强上行链路覆盖的方法及装置、基站
CN201210069078.X 2012-03-15

Publications (1)

Publication Number Publication Date
WO2013135015A1 true WO2013135015A1 (zh) 2013-09-19

Family

ID=49137946

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2012/077162 WO2013135015A1 (zh) 2012-03-15 2012-06-19 增强上行链路覆盖的方法及装置、基站

Country Status (2)

Country Link
CN (1) CN103313270B (zh)
WO (1) WO2013135015A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015042431A1 (en) * 2013-09-20 2015-03-26 Qualcomm Incorporated Flexible operation of enhanced tti-bundling modes in lte

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9608774B2 (en) * 2013-10-03 2017-03-28 Qualcomm Incorporated Opportunistic HARQ repetition for coverage enhancement
CN104780549A (zh) * 2014-01-10 2015-07-15 夏普株式会社 物理信道配置方法以及基站和用户设备
CN104022856B (zh) * 2014-06-23 2017-09-29 天津大学 一种td‑lte系统中减小业务延迟的tti绑定方法
US9894637B2 (en) * 2015-03-23 2018-02-13 Qualcomm Incorporated Low cost paging
CN108270527A (zh) 2017-01-04 2018-07-10 电信科学技术研究院 一种混合自动重传请求harq传输方法及相关设备
US11133898B2 (en) 2017-02-03 2021-09-28 Telefonaktiebolaget Lm Ericsson (Publ) Retransmission handling at TTI length switch

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101400081A (zh) * 2007-09-28 2009-04-01 大唐移动通信设备有限公司 Tdd系统中的上行资源调度方法、系统及设备
CN101405980A (zh) * 2006-02-13 2009-04-08 西门子公司 在无线电通信系统中以分组方式传输数据的方法
WO2009115261A1 (en) * 2008-03-17 2009-09-24 Panasonic Corporation Improved harq process management
CN101686116A (zh) * 2008-09-23 2010-03-31 大唐移动通信设备有限公司 预留混合自动重传请求进程指示方法、系统及设备

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8233431B2 (en) * 2004-08-13 2012-07-31 Nokia Corporation WCDMA uplink HARQ operation during the reconfiguration of the TTI length
CN100486252C (zh) * 2005-10-18 2009-05-06 中兴通讯股份有限公司 支持多载波高速下行分组接入的数据并行调度系统及方法
CN101119184A (zh) * 2006-08-02 2008-02-06 华为技术有限公司 混合自适应重传请求方法及其实体
EP3393066B1 (en) * 2006-11-01 2021-12-01 LG Electronics Inc. Method and apparatus for allocating pilots
KR100893869B1 (ko) * 2008-03-13 2009-04-20 엘지전자 주식회사 측정 간격을 고려한 ｈａｒｑ 동작 방법
US9226205B2 (en) * 2008-04-25 2015-12-29 Interdigital Patent Holdings, Inc. Multi-cell WTRUs configured to perform mobility procedures and methods
CN102056228A (zh) * 2009-11-02 2011-05-11 夏普株式会社 上行混合自动请求重传应答信息捆绑指示传输方法和基站

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101405980A (zh) * 2006-02-13 2009-04-08 西门子公司 在无线电通信系统中以分组方式传输数据的方法
CN101400081A (zh) * 2007-09-28 2009-04-01 大唐移动通信设备有限公司 Tdd系统中的上行资源调度方法、系统及设备
WO2009115261A1 (en) * 2008-03-17 2009-09-24 Panasonic Corporation Improved harq process management
CN101686116A (zh) * 2008-09-23 2010-03-31 大唐移动通信设备有限公司 预留混合自动重传请求进程指示方法、系统及设备

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015042431A1 (en) * 2013-09-20 2015-03-26 Qualcomm Incorporated Flexible operation of enhanced tti-bundling modes in lte

Also Published As

Publication number Publication date
CN103313270A (zh) 2013-09-18
CN103313270B (zh) 2018-08-28

Similar Documents

Publication Publication Date Title
US11576199B2 (en) Systems and methods for grant-free uplink transmissions
JP6440827B2 (ja) データ伝送方法、ユーザ機器、および基地局
EP2880943B1 (en) Signaling and channel designs for d2d communications
JP5001462B2 (ja) 通信システムにおける方法及び構成
KR101721015B1 (ko) 이동 통신 시스템에서 블라인드 스케쥴링 장치 및 방법
EP3526920B1 (en) Base stations, user equipments and a system for wireless communication, as well as the corresponding methods
WO2016183705A1 (zh) 授权辅助接入系统中用于传输上行数据的方法和装置
WO2014067469A1 (zh) 一种传输数据的方法、系统和设备
WO2013135015A1 (zh) 增强上行链路覆盖的方法及装置、基站
WO2012092815A1 (zh) 上行控制信息的调度及上报方法、系统和设备
US20140003374A1 (en) Method and apparatus for enhancing tti (transmission time interval) bundling in a wireless communication network
WO2015106554A1 (zh) 资源管理方法、装置及计算机存储介质
WO2013185799A1 (en) Radio base station and method for resolving terminal state ambiguity during tti bundling switching
WO2012155701A1 (zh) 一种反馈信息的发送方法及终端
KR20170081161A (ko) 비면허 대역들을 통한 셀룰러 동작들에서 하이브리드 반복 요청(harq)을 수행하기 위한 방법
CN114175551A (zh) 通信装置、基础设施设备以及方法
KR20220131195A (ko) 무선 통신 시스템에서 사이드링크 통신을 위한 주기적인 사이드링크 리소스 및 불연속 수신을 처리하는 방법 및 장치
WO2012097724A1 (zh) 半静态调度方法、用户设备及网络设备
EP3048750A1 (en) Data transmission method, apparatus, and device
KR102110190B1 (ko) 통신 시스템에서 bwp 운용을 위한 방법 및 장치
WO2013159597A1 (zh) 数据传输方法、用户设备及基站
WO2013120318A1 (zh) 一种子帧捆绑时实现上行子帧调度的方法和系统
JP5647119B2 (ja) 通信方法、１次局、２次局及び通信システム
US10812247B2 (en) Methods and network nodes for scheduling a plurality of TTI-bundle transmissions
WO2018082445A1 (zh) 反馈指示传输方法、装置和计算机存储介质

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 12871505

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 12871505

Country of ref document: EP

Kind code of ref document: A1