WO2016041158A1 - 一种重传数据的方法及装置 - Google Patents

一种重传数据的方法及装置 Download PDF

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Publication number
WO2016041158A1
WO2016041158A1 PCT/CN2014/086714 CN2014086714W WO2016041158A1 WO 2016041158 A1 WO2016041158 A1 WO 2016041158A1 CN 2014086714 W CN2014086714 W CN 2014086714W WO 2016041158 A1 WO2016041158 A1 WO 2016041158A1
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WO
WIPO (PCT)
Prior art keywords
data block
terminal
received
retransmission process
current
Prior art date
Application number
PCT/CN2014/086714
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English (en)
French (fr)
Inventor
张崇铭
罗超
赵旸
Original Assignee
华为技术有限公司
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 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2014/086714 priority Critical patent/WO2016041158A1/zh
Priority to CN201480033280.4A priority patent/CN105637790B/zh
Publication of WO2016041158A1 publication Critical patent/WO2016041158A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for retransmitting data.
  • the network side specifically has a retransmission mechanism. After receiving the data block sent by the terminal, the network side notifies the network side of the terminal to receive the status of the data block.
  • the status includes correct reception (ACK), that is, the network side correctly decodes the received data block, Correct reception (NACK), that is, the network side fails to decode the received data block.
  • ACK correct reception
  • NACK Correct reception
  • the terminal will retransmit the data according to the data block receiving status indicated by the network side until the network side receives it correctly.
  • the coverage enhancement on the network side is implemented.
  • the terminal needs to repeatedly send N times when transmitting the data block normally or retransmitting the data block. That is, the terminal first sends a data block to the network side and repeats the transmission for N times.
  • the network side decodes the data block after the terminal repeatedly transmits N times. When the decoding fails, it determines that the data block needs to be retransmitted to the terminal. Sending an indication message for retransmitting the data block, the terminal repeatedly sends the data block N times according to the indication message at a subsequent time. If the network side still fails to decode the data block, the terminal is instructed to repeatedly send the data block N times again until the data block is repeated. The network side decodes the data block successfully.
  • the embodiment of the invention provides a method and a device for retransmitting data, which are used to solve the problem of waste of network transmission resources existing in the prior art.
  • an embodiment of the present invention provides an apparatus for retransmitting data, where the apparatus includes:
  • a processing unit configured to determine a decoding condition of the received data block
  • a sending unit configured to: after the processing unit determines that the received data block fails to be decoded, The terminal sends an indication message, where the indication message is used to instruct the terminal to retransmit the data block;
  • a receiving unit configured to receive, by the terminal, each data block that is repeatedly sent according to the indication message in the current retransmission process, where the number of times the data block is repeatedly sent in the retransmission process is smaller than the normal transmission of the data block by the terminal frequency;
  • the processing unit is further configured to jointly decode, by the receiving unit, each data block repeatedly sent by the terminal in the current retransmission process and the cached data block, where the cached
  • the data block includes the received data block that is normally sent by the terminal, or the received data block that is normally sent by the terminal and the received data block that the terminal has retransmitted.
  • the processing unit is further configured to:
  • the first uplink scheduling identifier USF and the second USF are allocated to the terminal, where the first USF is used to indicate the uplink resource used by the terminal to normally send the data block, and the second USF is used to indicate the uplink used by the terminal to retransmit the data block.
  • the receiving unit is configured to receive, on an uplink resource indicated by the second USF that is allocated by the processing unit, each data block that is repeatedly sent by the terminal in the current retransmission process.
  • the sending unit is specifically configured to carry in an indication message sent to the terminal The number of times the data block is repeatedly transmitted;
  • the receiving unit is configured to receive, according to the number of times the terminal repeatedly transmits the data block, in the instruction message, repeating, in the current retransmission process, each data block sent by the number of times.
  • the device further includes a storage unit;
  • the processing unit is further configured to:
  • the receiving unit When the receiving unit receives each data block repeatedly sent by the terminal during the first retransmission process, starting a preset counter
  • the counter is incremented by one
  • each received data block repeatedly sent by the received terminal in the current retransmission process is cached in the storage unit;
  • each of the data blocks repeatedly received by the received terminal in the current retransmission process and the buffered data block are discarded.
  • the device further includes a storage unit;
  • the processing unit is further configured to:
  • the sending unit After the first determining that the decoding of the received data block fails, the sending unit starts the preset counter when sending the indication message to the terminal;
  • each received data block repeatedly sent by the received terminal in the current retransmission process is cached in the storage unit;
  • each of the data blocks repeatedly received by the received terminal in the current retransmission process and the buffered data block are discarded.
  • the device further includes a storage unit;
  • the processing unit is further configured to:
  • the receiving unit When the receiving unit receives each data block repeatedly sent by the terminal during the first retransmission process, starting a preset timer;
  • each received data block that is repeatedly sent by the received terminal in the current retransmission process is cached in the storage unit;
  • each of the data blocks repeatedly received by the received terminal during the current retransmission and the buffered data block are discarded.
  • the device further includes a storage unit;
  • the processing unit is further configured to:
  • the sending unit sends the indication message to the terminal, the preset timer is started;
  • each received data block that is repeatedly sent by the received terminal in the current retransmission process is cached in the storage unit;
  • each of the data blocks repeatedly received by the received terminal during the current retransmission and the buffered data block are discarded.
  • an embodiment of the present invention provides an apparatus for retransmitting data, where the apparatus includes:
  • a receiving unit configured to receive an indication message sent by the network side when determining that the decoding of the received data block fails, where the indication message is used to indicate that the data block is retransmitted;
  • a sending unit configured to repeatedly send the data block in the current retransmission process according to the indication message, where the number of times the data block is repeatedly sent during the retransmission is smaller than the number of times the data block is normally sent.
  • the sending unit is configured to send the data on the uplink resource indicated by the first uplink scheduling identifier USF that is allocated by the network side. Block, and on the uplink resource indicated by the second USF allocated on the network side, according to the reference The message is repeatedly sent in the current retransmission process.
  • the sending unit is specifically configured to:
  • the embodiment of the present invention further provides a method for retransmitting data, where the method includes:
  • each data block repeatedly sent in the current retransmission process and the buffered data block, where the buffered data block includes the received normal transmission by the terminal. And the data block, or the received data block that is normally sent by the terminal, and the received data block that the terminal has retransmitted.
  • the method further includes:
  • the first uplink scheduling identifier USF and the second USF are allocated to the terminal, where the first USF is used to indicate the uplink resource used by the terminal to normally send the data block, and the second USF is used to indicate the uplink used by the terminal to retransmit the data block.
  • each data block that is repeatedly sent by the terminal in the current retransmission process specifically includes:
  • the indication message carries a number of times of repeatedly sending the data block
  • each data repeatedly sent in the current retransmission process according to the indication message Blocks including:
  • the method further includes:
  • the preset counter is started when receiving each data block repeatedly sent by the terminal during the first retransmission process.
  • the counter is incremented by one
  • the method further includes:
  • the preset counter After determining that the received data block fails to be decoded for the first time, when the indication message is sent to the terminal, the preset counter is started;
  • the received data is jointly decoded by the received data in the current retransmission process and the buffered data block, if the decoding fails, it is determined whether the current count value of the counter reaches the counting threshold, and if not, And buffering, by the received terminal, each data block that is repeatedly sent in the current retransmission process; if yes, discarding each of the data blocks that are repeatedly sent by the received terminal in the current retransmission process, and the cached data block .
  • the method further includes:
  • a preset timer is started when receiving each data block repeatedly sent by the terminal during the first retransmission.
  • the decoding fails, it is determined whether the current timing value of the timer reaches a time threshold. If not, buffering the received data blocks repeatedly sent by the terminal in the current retransmission process; if yes, discarding each of the data blocks repeatedly sent by the received terminal in the current retransmission process, and the cached office The data block.
  • the method further includes:
  • the preset timer After determining that the received data block fails to be decoded for the first time, when the indication message is sent to the terminal, the preset timer is started;
  • an embodiment of the present invention provides a method for retransmitting data, where the method includes:
  • an indication message sent by the receiving network side when determining that the decoding of the received data block fails the indication message is used to indicate that the data block is retransmitted;
  • the method further includes:
  • the data block is repeatedly sent in the current retransmission process according to the indication message, include:
  • the number of retransmissions when the data block is retransmitted is smaller than the number of times the data block is normally transmitted, that is, the number of times of retransmitting the data block is reduced, thereby saving network transmission resources, and The transmission is repeated continuously and is the same as in the prior art, thereby also shortening the delay of transmission.
  • the terminal since the terminal repeatedly transmits and the number of times the network side receives the data block is reduced, the power consumption of the terminal and the network side is reduced.
  • FIG. 1 is a schematic diagram of a process of scheduling by the network side using the USF according to an embodiment of the present invention
  • FIG. 2 is a schematic diagram of a correspondence between a USF and an uplink resource allocated by a network on a network side according to an embodiment of the present disclosure
  • FIG. 3 is a schematic diagram of an apparatus for retransmitting data according to Embodiment 1 of the present invention.
  • FIG. 4 is a schematic diagram of an apparatus for retransmitting data according to Embodiment 2 of the present invention.
  • FIG. 5 is a flowchart of a method for retransmitting data according to an embodiment of the present invention.
  • FIG. 6 is a flowchart of a method for retransmitting data according to an embodiment of the present invention.
  • FIG. 7 is a flowchart of a third method for retransmitting data according to an embodiment of the present invention.
  • FIG. 8 is a flowchart of a fourth method for retransmitting data according to an embodiment of the present invention.
  • FIG. 9 is a flowchart of a third method for retransmitting data according to an embodiment of the present invention.
  • FIG. 10 is a schematic diagram of an apparatus for retransmitting data according to Embodiment 3 of the present invention.
  • FIG. 11 is a schematic diagram of an apparatus for retransmitting data according to Embodiment 4 of the present invention.
  • the network side sends the indication message of the retransmitted data block to the terminal, so that the terminal repeatedly sends the data block to the network side according to the indication message, and the number of times the data block is repeatedly sent is smaller than the first time to send the data block.
  • the number of times of the data block wherein the network side caches the data block normally sent by the received terminal.
  • the network side jointly decodes the data block that is received by the terminal and the buffered data block, and if the decoding fails, buffers the received retransmitted data block, and sends the weight again to the terminal.
  • An indication message of the data is transmitted to instruct the terminal to repeatedly transmit the data block again.
  • the embodiment of the present invention reduces the number of times of retransmitting data blocks, thereby saving network transmission resources, and is continuous repeated transmission during retransmission, and is the same as the prior art, thereby shortening the transmission delay.
  • a terminal may be referred to as a user equipment (User Equipment, referred to as "UE"), a mobile station (Mobile Station, abbreviated as “MS”), or a mobile terminal (Mobile Terminal).
  • UE User Equipment
  • MS Mobile Station
  • RAN Radio Access Network
  • the network side may be a base station (BTS, Base Transceiver Station) in GSM or CDMA, or may be a Node B (NodeB) in WCDMA, or may be an evolved Node B in LTE (eNB or e-NodeB, evolved Node B) or relay (Relay),
  • BTS Base Transceiver Station
  • NodeB Node B
  • Relay relay
  • the network side allocates an uplink channel and an Uplink Schedule Flag (USF) to the terminal.
  • USF Uplink Schedule Flag
  • the terminal monitors all downlink blocks (including data blocks and control blocks) on the downlink channel corresponding to the allocated uplink channel, and carries the USF in the block header of the downlink block.
  • the terminal monitors that the block header of a downlink block carries the USF to which the terminal belongs, the uplink data block is sent on the uplink resource corresponding to the USF, and the current scheduling is completed.
  • each downlink block includes a block header and data
  • the cell USF is included in the block header
  • the terminal decodes the USF after receiving the downlink block.
  • the terminal to which the USF0 belongs will send an uplink data block (hereinafter referred to as a data block) on the uplink resource corresponding to the USF0, and complete the scheduling.
  • An embodiment of the present invention provides a device for retransmitting data.
  • the device is disposed on the network side. As shown in FIG. 3, the device includes a processing unit 301, a sending unit 302, and a receiving unit 303:
  • the processing unit 301 is further configured to determine a decoding situation of the received data block
  • the sending unit 302 is configured to: after the processing unit 301 determines that the decoding of the received data block is unsuccessful, send an indication message to the terminal, where the indication message is used to instruct the terminal to retransmit the data block;
  • the identifier information of the data block may be carried in the indication message, thereby instructing the terminal to retransmit the data block identified by the identifier information.
  • the receiving unit 303 is configured to receive, according to the indication message, the data block that is repeatedly sent in the retransmission process according to the indication message, where the number of times the data block is repeatedly sent in the retransmission process is smaller than the normal transmission of the data block by the terminal. Number of times;
  • the terminal repeatedly sends the data block indicated in the indication message in the current retransmission process according to the indication message, so the receiving unit 303 receives each data block that is repeatedly sent by the terminal according to the indication message in the current retransmission process. .
  • the sending unit 302 is specifically configured to carry in an indication message sent to the terminal. The number of times the data block is repeatedly transmitted during retransmission. Then, the terminal repeatedly transmits the data blocks according to the indication message in the current retransmission process, and the number of repeated transmissions during the retransmission is the number of times indicated in the indication message.
  • the receiving unit 303 is specifically configured to receive, according to the number of times the terminal repeatedly transmits the data block that is carried in the indication message, repeating, in the current retransmission process, each data block that is sent by the number of times.
  • the number of times that the data block is repeatedly sent during the retransmission carried in the indication message may be preset, or may be determined by the network side according to the channel quality and/or the decoding status.
  • the number of times the data block is repeatedly transmitted may also be determined by the terminal according to the channel quality. It is also possible that the terminal pre-specifies the number of times the data block is repeatedly transmitted every time the retransmission is performed. For example, the number of times of repeated transmissions at each retransmission is N/2, where N is the number of times the data block is first transmitted, that is, the number of times the data block is normally transmitted; or, the first retransmission is repeated. The number of times of transmission is N/2, and the number of times of repeated transmission in the second retransmission is N/2, which is successively decremented and the like.
  • the processing unit 301 is further configured to jointly decode, by the receiving unit 303, each data block repeatedly sent by the terminal in the current retransmission process and the buffered data block, the cached
  • the data block includes the received data block that is normally sent by the terminal, or the received data block that is normally sent by the terminal and the received data block that the terminal has retransmitted.
  • the apparatus for retransmitting data provided by the embodiment of the present invention reduces the number of retransmissions when the data block is retransmitted is smaller than the number of times the data block is normally transmitted, that is, reduces the number of times of retransmitting the data block, thereby saving network transmission resources, and Since the retransmission is continuous repeated transmission and is the same as the prior art, the transmission delay is also shortened. Moreover, since the terminal repeatedly transmits and the number of times the network side receives the data block is reduced, the power consumption of the terminal and the network side is reduced.
  • the received data block is buffered, so that the subsequently received retransmitted data block is compared with the cached data.
  • the blocks are jointly decoded so that the decoding rate is not affected by the reduction in the number of retransmissions when retransmitting the data block.
  • the processing unit 301 is further configured to allocate a USF to the terminal, so that the terminal sends the data block in the uplink resource corresponding to the USF.
  • the processing unit 301 can allocate a USF to the terminal, where the USF indicates the uplink resource used by the terminal to normally send the data block and retransmit the data block.
  • the terminal normally transmits the data block in the uplink resource indicated by the USF, and retransmits the data block.
  • the processing unit 301 is further configured to allocate two USFs for the terminal, where the first USF is used to indicate the uplink resource used by the terminal to normally send the data block, and the second USF is used to indicate the uplink resource used by the terminal to retransmit the data block. Therefore, the terminal normally transmits the data block in the uplink resource corresponding to the first USF.
  • the uplink resource corresponding to the second USF is heavy. Pass the data block.
  • the receiving unit 303 is specifically configured to receive, on the uplink resource indicated by the second USF that is allocated by the processing unit 301, each data block that is repeatedly sent by the terminal in the current retransmission process.
  • the network side allocates the first USF1 to the terminal before the data block is normally sent. Assigning a second USF to the terminal can be done before sending normal data. After the decoding failure is determined, the second USF may be carried in the indication message for indicating the retransmission of the terminal.
  • the network side and the terminal may pre-negotiate to determine a first USF allocated for transmitting normal data, and a second USF for retransmitting data blocks.
  • the device further includes a storage unit
  • the processing unit 301 is further configured to: when the receiving unit 303 receives each data block that is repeatedly sent by the terminal during the first-time retransmission, start a preset counter; and receive the subsequent receiving unit 303 When the terminal repeatedly transmits each data block in the process of retransmission, the counter is incremented by one; each data block that is repeatedly sent by the terminal received by the receiving unit 303 in the current retransmission process After jointly decoding with the buffered data block, when the decoding fails, it is determined whether the current count value of the counter reaches the counting threshold; when it is determined that the current counting value of the counter does not reach the counting threshold, the received terminal is in the present Each of the data blocks that are repeatedly sent during the retransmission process is buffered in the storage unit; and when it is determined that the current count value of the counter reaches the counting threshold, discarding each of the received terminals repeatedly transmitting in the current retransmission process The data block, and the data block that has been cached.
  • the device further includes a storage unit
  • the processing unit 301 is further configured to:
  • the sending unit 302 After the first decoding determines that the received data block fails to be decoded, the sending unit 302 starts the preset counter when sending the indication message to the terminal; and determines the receiving of the receiving unit 303 each time thereafter. After the decoding of the data block fails, when the sending unit 302 sends an indication message to the terminal, the counter is incremented by one; and each data block that is repeatedly sent by the terminal received by the receiving unit 303 in the current retransmission process is After the decoded data block is jointly decoded, when the decoding fails, it is determined whether the current count value of the counter reaches the counting threshold; when it is determined that the current counting value of the counter does not reach the counting threshold, the received terminal is in this time.
  • Each of the data blocks that are repeatedly sent during the retransmission is buffered in the storage unit; and when it is determined that the current count value of the counter reaches the counting threshold, discarding each station that the received terminal repeatedly transmits during the current retransmission process The data block, and the data block that has been cached.
  • the device further includes a storage unit
  • the processing unit 301 is further configured to: when the receiving unit 303 receives each data block that is repeatedly sent by the terminal during the first-time retransmission, start a preset timer; and the receiving unit 303 After the received data is jointly decoded by the data block that is repeatedly sent in the current retransmission process and the buffered data block, when the decoding fails, it is determined whether the current timing value of the timer reaches a time threshold;
  • each received data block that is repeatedly sent by the received terminal in the current retransmission process is cached in the storage unit;
  • each of the data blocks repeatedly received by the received terminal during the current retransmission and the buffered data block are discarded.
  • the device further includes a storage unit
  • the processing unit 301 is further configured to: after the first determining that the decoding of the received data block fails, when the sending unit 302 sends the indication message to the terminal, start a preset timer; After the data received by the unit 303 is re-transmitted in the current retransmission process and the buffered data block is jointly decoded, if the decoding fails, it is determined whether the current timing value of the timer reaches a time threshold;
  • each received data block that is repeatedly sent by the received terminal in the current retransmission process is cached in the storage unit;
  • each of the data blocks repeatedly received by the received terminal during the current retransmission and the buffered data block are discarded.
  • each of the data blocks that are repeatedly sent by the received terminal in the current retransmission process and the cached data block. Do not do anything.
  • timer and the counter can also be implemented in combination, which is similar to the above, and will not be further described herein.
  • the embodiment of the invention further provides a device for retransmitting data, which is applied to the terminal side, as shown in FIG. 4, the device includes:
  • the receiving unit 401 is configured to receive an indication message sent by the network side when determining that the decoding of the received data block fails, where the indication message is used to indicate that the data block is retransmitted;
  • the sending unit 402 is configured to repeatedly send the data block according to the indication message in the current retransmission process, where the number of times the data block is repeatedly sent during the retransmission is smaller than the number of times the data block is normally sent.
  • the apparatus for retransmitting data provided by the embodiment of the present invention reduces the number of times of retransmission when the data block is retransmitted, that is, the number of times of retransmitting the data block, that is, reduces the number of times of retransmitting the data block, thereby saving network transmission resources. And since the retransmission is continuous repeated transmission, and is the same as the prior art, the transmission delay is also shortened.
  • the sending unit 402 is configured to send the data block normally on the uplink resource indicated by the first uplink scheduling identifier USF allocated by the network side, and on the uplink resource indicated by the second USF allocated by the network side, according to The indication message repeatedly transmits the data block during the current retransmission process.
  • the network side received by the receiving unit 401 is determined.
  • the indication message sent when the received data block fails to be decoded also carries the number of times the data block is repeatedly sent when the retransmission is performed; the sending unit 402 is specifically configured to send the data according to the repetition carried in the indication message. The number of times of the block, the number of times is repeated during the current retransmission process to send the data block;
  • the apparatus may further include a processing unit, configured to predetermine the number of times the data block is repeatedly sent each time the retransmission is performed.
  • the sending unit 402 is specifically configured to send the data block by repeating a preset number of times in the current retransmission process according to the indication message.
  • the embodiment of the invention provides a method for retransmitting data. As shown in FIG. 5, the method is applied to the network side, and includes:
  • Step 501 after determining that the decoding of the received data block fails, sending an indication message to the terminal, where the indication message is used to instruct the terminal to retransmit the data block;
  • Step 502 Receive, by the terminal, each data block that is repeatedly sent in the current retransmission process according to the indication message, where the number of times the data block is repeatedly sent in the retransmission process is smaller than the normal transmission of the data block by the terminal. Number of times;
  • the indication message sent to the terminal may further carry the number of times the data block is repeatedly sent during the retransmission, and the terminal repeatedly transmits the data block according to the indication message in the current retransmission process, and the number of times of repeated transmission when retransmitting is Indicates the number of times indicated in the message.
  • receiving, by the terminal, the data blocks that are repeatedly sent in the current retransmission process according to the indication message specifically: receiving the number of times the terminal sends the data block repeatedly according to the carried in the indication message, and retransmitting in the local time Each of the data blocks transmitted by the number of times is repeated in the process.
  • the number of times that the data block is repeatedly sent during the retransmission carried in the indication message may be preset, or may be determined by the network side according to the channel quality and/or the decoding status.
  • the number of times the data block is repeatedly transmitted may also be determined by the terminal according to the channel quality.
  • Step 503 jointly decode the received data blocks that are repeatedly sent by the terminal in the current retransmission process, and the cached data blocks, where the cached data blocks include the received terminal.
  • the method for retransmitting data provided by the embodiment of the present invention reduces the number of retransmissions when the data block is retransmitted is smaller than the number of times the data block is normally transmitted, that is, reduces the number of times of retransmitting the data block, thereby saving network transmission resources, and Since the retransmission is continuous repeated transmission and is the same as the prior art, the transmission delay is also shortened. Moreover, since the terminal repeatedly transmits and the number of times the network side receives the data block is reduced, the power consumption of the terminal and the network side is reduced.
  • the received data block is buffered, so that the subsequently received retransmitted data block is compared with the cached data.
  • the blocks are jointly decoded so that the decoding rate is not affected by the reduction in the number of retransmissions when retransmitting the data block.
  • the USF is also allocated to the terminal, so that the terminal sends the data block in the uplink resource corresponding to the USF.
  • the terminal can be assigned a USF, and the terminal normally sends the data block in the uplink resource corresponding to the USF, and retransmits the data block.
  • the terminal can also allocate two USFs for the terminal, the first USF is used to indicate the uplink resource used by the terminal to normally send the data block, and the second USF is used to indicate the uplink resource used by the terminal to retransmit the data block. Therefore, the terminal normally transmits the data block in the uplink resource corresponding to the first USF.
  • the uplink resource corresponding to the second USF is heavy. Pass the data block.
  • the method includes: receiving, in the current retransmission process, the uplink resource corresponding to the second USF allocated to the terminal Repeatedly transmitted individual data blocks.
  • the specific data block that is repeatedly sent by the terminal in the current retransmission process is jointly decoded with the cached data block, and may be any one of the following implementation manners:
  • the received data block is combined with the buffered data block and decoded.
  • the received data block and the buffered data block are respectively decoded, and then the decoded data is combined.
  • each data block that is repeatedly sent during the current retransmission process of the received terminal is received.
  • the received data blocks that are repeatedly transmitted by the terminal during the current retransmission may be buffered.
  • the buffering the received data blocks that are repeatedly sent by the terminal in the current retransmission process may be: buffering the received data block and the cached data block in the same file. Specifically, the received data blocks that are repeatedly sent by the terminal in the current retransmission process and the cached data blocks are combined and cached, and the data blocks that have been cached before the merge are replaced.
  • the method for retransmitting data as shown in FIG. 6 is described by taking two USFs as terminals on the network side as an example.
  • Step 601 The network side allocates a first USF and a second USF to the terminal, where the first USF is used to indicate the uplink resource used by the terminal to normally send the data block, and the second USF is used to indicate that the terminal uses the data block to retransmit. Upstream resources. Step 602 is performed.
  • Step 602 The first USF of the terminal is scheduled by the network side.
  • the terminal repeatedly transmits the data block B in the uplink resource indicated by the first USF, and the number of repetitions is N, and N is a positive integer. Go to step 603.
  • Step 603 The network side receives the data block B that the terminal repeatedly transmits in the uplink resource indicated by the first USF. Go to step 604.
  • Step 604 The network side determines a decoding state for decoding the data block B that is repeatedly transmitted by the terminal in the uplink resource corresponding to the first USF. If the decoding fails, step 605 is performed. If the decoding is successful, step 606 is performed.
  • Step 605 Cache the data block B that the received terminal repeatedly transmits in the uplink resource indicated by the first USF. Step 607 is performed.
  • Step 606 End the sending process.
  • the network side sends an indication message for releasing the uplink connection to the terminal.
  • Step 607 The network side sends an indication message to the terminal, where the indication message is used to instruct the terminal to retransmit the data block B. Go to step 608.
  • Step 608 The second USF of the terminal is scheduled by the network side. In order for the terminal to repeatedly send the data block B in the uplink resource indicated by the second USF, the number of repetitions is less than N. Go to step 609.
  • Step 609 The network side receives the data block B retransmitted by the terminal in the uplink resource indicated by the second USF. Go to step 610.
  • Step 610 The network side determines a decoding state that is decoded after the received terminal recombines the data block B of the uplink resource re-transmitted by the second USF and the data block B that is buffered by the network side. If the decoding fails, step 611 is performed. If the decoding is successful, step 606 is performed.
  • Step 611 The network side buffers the data block B that is received by the terminal in the uplink resource corresponding to the second USF. Go to step 607. Specifically, the data block B retransmitted by the received terminal in the uplink resource corresponding to the second USF is cached in the folder where the cached data block is located.
  • the counter or the timer may be added to process, when the condition is met, each of the data blocks that are repeatedly sent by the received terminal in the current retransmission process, and the buffered data block are processed. details as follows:
  • the preset counter when receiving, by the terminal, each of the data blocks that are repeatedly sent during the first-time retransmission, the preset counter is started; and the terminal is subsequently received in each subsequent retransmission.
  • the counter is incremented by 1;
  • the preset counter is started; and each time the received data block is determined After the decoding fails, when the indication message is sent to the terminal, the counter is incremented by one;
  • the received data is jointly decoded by the received data in the current retransmission process and the buffered data block, if the decoding fails, it is determined whether the current count value of the counter reaches the counting threshold, and if not, Cache each data block repeatedly received by the terminal in the current retransmission process; if yes, discard each of the data blocks repeatedly received by the received terminal during the current retransmission process, And the data block that has been cached.
  • the preset timer when receiving each data block that is repeatedly sent by the terminal during the first-time retransmission, the preset timer is started; and the received terminal is retransmitted in the current time. After the data blocks repeatedly transmitted in the process are jointly decoded with the buffered data blocks, when the decoding fails, it is determined whether the current timing value of the timer reaches a time threshold, and if not, the buffer received terminal is in this time. Each of the data blocks repeatedly transmitted during the retransmission process; if so, discarding each of the data blocks repeatedly received by the received terminal during the current retransmission and the buffered data blocks.
  • the preset timer is started;
  • Step 701 The network side allocates two uplink scheduling identifiers USF, the first USF and the second USF, the first USF is used to indicate the resources used by the terminal to normally send the data block, and the second USF is used to indicate the terminal. Retransmit the uplink resources used by the data block. Go to step 702.
  • Step 702 The first USF of the terminal is scheduled by the network side.
  • the terminal repeatedly transmits the data block B on the uplink resource indicated by the first USF, and the number of repetitions is N, and N is a positive integer. Go to step 703.
  • Step 703 The network side receives the data block B repeatedly sent by the terminal on the uplink resource indicated by the first USF. Go to step 704.
  • Step 704 The network side determines a decoding state of decoding the data block B repeatedly transmitted by the received terminal on the uplink resource indicated by the first USF. If the decoding fails, step 705 is performed. If the decoding is successful, step 706 is performed.
  • Step 705 Cache the number of times the received terminal repeatedly sends the uplink resource indicated by the first USF. According to block B. Go to step 707.
  • Step 706 End the sending process.
  • the network side sends an indication message for releasing the uplink connection to the terminal.
  • Step 707 Send an indication message to the terminal, where the indication message is used to instruct the terminal to retransmit the data block B. Go to step 708.
  • Step 708 The second USF of the terminal is scheduled by the network side.
  • the terminal repeatedly transmits the data block B on the uplink resource indicated by the second USF, and the number of repetitions is less than N. Go to step 709.
  • Step 709 The network side receives the data block B retransmitted by the terminal on the uplink resource indicated by the second USF, and starts the counter, and adds 1 to the counter (or starts the timer). Go to step 710.
  • Step 710 The network side determines the decoding state of the data block B retransmitted by the received terminal on the uplink resource indicated by the second USF and the buffered data block B of the network side, and if the decoding fails, step 711 is performed. If the decoding is successful, step 706 is performed.
  • Step 711 The network side determines whether the counter reaches the counting threshold. If yes, step 712 is performed, and if no, step 713 is performed.
  • Step 712 The network side buffers the data block B that the received terminal retransmits on the uplink resource indicated by the second USF. Go to step 707.
  • Step 713 The network side discards the data block B and the buffered data block B that are retransmitted by the received terminal on the uplink resource indicated by the second USF.
  • the embodiment of the present invention further provides a method for retransmitting data. As shown in FIG. 8, the method is applied to a terminal side, and the method includes:
  • Step 801 The receiving network sends an indication message that is sent when the decoding of the received data block fails.
  • the indication message is used to indicate that the data block is retransmitted.
  • Step 802 Repeatly sending the data block in the current retransmission process according to the indication message, where the number of times the data block is repeatedly sent in the retransmission process is smaller than the number of times the data block is normally sent.
  • the received network sends an indication message that is sent when the decoding of the received data block fails, and the number of times the data block is repeatedly sent when the retransmission is carried;
  • the number of times the data block is repeatedly transmitted each time it is retransmitted is predetermined.
  • the number of times the data block is repeatedly sent during the retransmission carried in the indication message may be determined by the network side according to the channel quality or the decoding status.
  • the predetermined number of times the data block is repeatedly transmitted during each retransmission may be determined by the terminal according to the channel quality, or may be the number of times the data block is repeatedly transmitted each time the retransmission is determined.
  • the number of times of repeated transmissions at each retransmission is N/2, where N is the number of times the data block is first transmitted, that is, the number of times the data block is normally transmitted; or, the first retransmission is repeated.
  • the number of times of transmission is N/2, and the number of times of repeated transmission in the second retransmission is N/2, which is successively decremented and the like.
  • the step 802 is to repeatedly send the data block in the current retransmission process according to the indication message, which may include:
  • the data block is sent in the current retransmission process; or repeating the pre-retransmission process according to the indication message Set the number of times to send the data block.
  • the method further includes: after receiving, in step 801, the indication message sent by the network side when determining that the decoding of the received data block fails, the step 802 repeating, sending, according to the indication message, in the current retransmission process.
  • the step 802 repeating, sending, according to the indication message, in the current retransmission process.
  • the terminal may determine, after the data block is sent normally, the first uplink scheduling identifier USF and the second USF that are allocated by the network side to the terminal, and determine only once. It can also be determined each time before the data block is sent, that is, the terminal can determine, before the normal transmission of the data block, the first USF allocated by the network side for the terminal to send the data block normally, and the pair is determined on the receiving network side. After the indication message sent when the received data block fails to be decoded, before the data block is repeatedly sent in the current retransmission process according to the indication message, determining, by the network side, the terminal for retransmitting the data block Second USF.
  • step 802 the data block is repeatedly sent in the current retransmission process according to the indication message, which specifically includes:
  • the data block is repeatedly transmitted during the retransmission process.
  • the indication message is further used to instruct the terminal to retransmit multiple data blocks. Then, when determining, according to the indication message, that the terminal needs to retransmit multiple data blocks, the terminal retransmits each data block according to the number sequence of each data block.
  • the terminal does not receive the indication message sent by the network side, it is determined that the data block does not need to be retransmitted. Then the terminal continues to send the next data block.
  • the terminal sends a data block to the network side, and if receiving the indication message sent by the network side, the terminal stops sending the next data block, and preferentially sends the data block identified by the identification information in the indication message.
  • the number of times the data block is repeatedly transmitted each time it is retransmitted is predetermined.
  • the example provides a method of retransmitting data, as shown in FIG. 9, the method includes:
  • Step 901 The network side allocates the USF to the terminal.
  • the USF is used for uplink scheduling, and indicates the resources used by the terminal to send data blocks. Go to step 902.
  • Step 902 The network side schedules the USF. Go to step 903.
  • Step 903 The terminal repeatedly sends data B in the uplink resource indicated by the USF.
  • the number of repetitions is N, and N is a positive integer. Go to step 904.
  • Step 904 The network side determines a decoding state of decoding the data block B that is repeatedly transmitted by the received terminal in the uplink resource indicated by the USF. If the decoding fails, step 905 is performed. If the decoding is successful, step 907 is performed.
  • Step 905 The network side buffers the data block B that is received by the terminal in the uplink resource indicated by the USF. Go to step 906.
  • Step 906 The network side sends an indication message for indicating a retransmission data block to the terminal.
  • the indication message is used to instruct the terminal to retransmit the data block B. Go to step 908.
  • Step 907 End the sending process.
  • the network side sends an indication message for releasing the uplink connection to the terminal.
  • Step 908 The terminal receives the indication message sent by the network side, and determines that the data block B needs to be retransmitted according to the indication message, the terminal retransmits the data block B on the uplink resource indicated by the USF; The number of B is less than N. Go to step 909.
  • the retransmission is started from the data block with the smallest number.
  • the terminal determines that the retransmission is not required, that is, the terminal does not receive the indication message for indicating retransmission, the terminal sends the next data block.
  • the data to be transmitted includes data block 1, data block 2, and data block 3.
  • the terminal After transmitting the data 1 to the network side, the terminal receives the indication message sent by the network side, and the indication message is used to retransmit the data block 1. After receiving the indication message, the terminal retransmits the data preferentially. After the data block 1 is retransmitted, the data block 2 and the data block 3 are continuously transmitted.
  • Step 909 The network side receives the data block B that the terminal repeatedly transmits in the uplink resource indicated by the USF. Go to step 910.
  • Step 910 The network side determines, when the received data block is a retransmitted data block, a decoding state that is decoded after the received data block is merged with the buffered data block, and if the decoding fails, Step 911 is performed. If the decoding is successful, step 907 is performed.
  • Step 911 The network side buffers the received data block. Go to step 906.
  • an embodiment of the present invention further provides an apparatus for retransmitting data.
  • the apparatus may be disposed on a network side, and the apparatus includes: a processor 1001, a memory 1002, and a transceiver 1003.
  • the processor 1001 is configured to implement the functions implemented by the processing unit shown in FIG. 3
  • the transceiver 1003 is configured to implement the functions implemented by the transmitting unit and the receiving unit shown in FIG. 3.
  • the processor 1001, the memory 1002, and the transceiver 1003 are connected to each other through a bus.
  • the bus may be a peripheral component interconnect (PCI) bus or an extended industry standard architecture (EISA) bus.
  • PCI peripheral component interconnect
  • EISA extended industry standard architecture
  • the bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in FIG. 10, but it does not mean that there is only one bus or one type of bus.
  • the memory 1002 is configured to store a program.
  • the program can include program code, the program code including computer operating instructions.
  • the memory 1002 may include a random access memory (RAM) memory, and may also include a non-volatile memory such as at least one disk memory.
  • the processing unit 1001 is configured to determine a decoding situation of the received data block.
  • the transceiver 1003 is configured to: after the processor 1001 determines that the received data block fails to be decoded, send an indication message to the terminal, where the indication message is used to instruct the terminal to retransmit the data block; and the receiving the terminal according to the indication
  • the data block is repeatedly sent in the current retransmission process, where the number of times the data block is repeatedly sent during the retransmission is smaller than the number of times the terminal normally sends the data block;
  • the processor 1001 is further configured to jointly decode, by the receiving unit, each data block that is repeatedly sent by the terminal in the current retransmission process, and the buffered data block, where the cached device is decoded.
  • the data block includes the received data block that is normally sent by the terminal, or the received data block that is normally sent by the terminal and the received data block that the terminal has retransmitted.
  • the cached data block is stored in the memory 1002.
  • the apparatus for retransmitting data provided by the embodiment of the present invention reduces the number of retransmissions when the data block is retransmitted is smaller than the number of times the data block is normally transmitted, that is, reduces the number of times of retransmitting the data block, thereby saving network transmission resources, and Since the retransmission is continuous repeated transmission and is the same as the prior art, the transmission delay is also shortened. Moreover, since the terminal repeatedly transmits and the number of times the network side receives the data block is reduced, the power consumption of the terminal and the network side is reduced.
  • the received data block is buffered, so that when the retransmitted data block is subsequently received, Decoded in conjunction with the buffered data block so that the decoding rate is not affected by the reduction in the number of retransmissions when retransmitting the data block.
  • the processor 1001 is further configured to allocate a USF to the terminal, so that the terminal sends the data block in the uplink resource corresponding to the USF.
  • the processor 1001 may allocate a USF to the terminal, where the USF indicates the uplink resource used by the terminal to normally send the data block and retransmit the data block.
  • the terminal normally transmits the data block in the uplink resource indicated by the USF, and retransmits the data block.
  • the processor 1001 may further allocate two USFs for the terminal, where the first USF is used to indicate the uplink resource used by the terminal to normally send the data block, and the second USF is used to indicate the uplink resource used by the terminal to retransmit the data block. Therefore, the terminal normally transmits the data block in the uplink resource corresponding to the first USF.
  • the data block needs to be retransmitted, that is, when the network side decodes the data block sent by the terminal and the decoding fails, the uplink resource corresponding to the second USF is heavy. Pass the data block.
  • the transceiver 1003 is specifically configured to receive, on an uplink resource indicated by the second USF that is allocated by the processor 1001, each data block that is repeatedly sent by the terminal in the current retransmission process.
  • the apparatus further includes a counter
  • the processor 1001 is further configured to: when the transceiver 1003 receives each data block that is repeatedly sent by the terminal during the first retransmission process Activating a preset counter; and when the transceiver 1003 receives the data blocks repeatedly sent by the terminal during each retransmission process, the counter is incremented by one; after receiving the transceiver 1003 After the decoding and decoding of the data blocks that are repeatedly sent by the terminal in the current retransmission process, the terminal determines whether the current counter value of the counter reaches the counting threshold.
  • the memory 1002 is further configured to: when the processor 1001 determines that the current count value of the counter has not reached the counting threshold, buffering, by the received terminal, each data block that is repeatedly sent during the current retransmission process;
  • the processor 1003 is further configured to: when determining that the current count value of the counter reaches a counting threshold, discard each of the data blocks that are repeatedly sent by the received terminal in the current retransmission process, and the cached data block.
  • the apparatus further includes a counter
  • the processor 1001 is further configured to:
  • the transceiver 1003 After determining that the decoding of the received data block fails for the first time, the transceiver 1003 starts a preset counter when sending the indication message to the terminal; and determines the received by the transceiver 1003 each time thereafter. After the decoding of the data block fails, when the indication message is sent to the terminal, the counter is incremented by one; each data block and the buffered data block that are repeatedly transmitted by the terminal received by the transceiver 1003 during the current retransmission process are repeated. After the joint decoding, when the decoding fails, it is determined whether the current count value of the counter reaches the counting threshold;
  • the memory 1002 is configured to cache, when the processor 1001 determines that the current count value of the counter has not reached the counting threshold, buffering, by the received terminal, each data block that is repeatedly sent during the current retransmission process;
  • the processor 1001 is further configured to: when determining that the current count value of the counter reaches a counting threshold, discard each of the data blocks that are repeatedly sent by the received terminal in the current retransmission process, and the cached data block.
  • the device further includes a timer, where the processor 1001 is further configured to receive, at the transceiver 1003, each data block that is repeatedly sent by the terminal during the first-time retransmission process. At the same time, the preset timer is started; and after each data block repeatedly received by the terminal received by the transceiver 1003 in the current retransmission process is jointly decoded with the buffered data block, when the decoding fails, Determining whether the current timing value of the timer reaches a time threshold;
  • each received data block repeatedly transmitted by the received terminal in the current retransmission process is cached in the memory 1002;
  • each of the data blocks repeatedly received by the received terminal during the current retransmission and the buffered data block are discarded.
  • the processor 1001 is further configured to determine the first time After the received data block fails to be decoded, when the transceiver 1003 sends an indication message to the terminal, the preset timer is started; and each terminal received by the transceiver 1003 is resent in the current retransmission process. After the data block is jointly decoded with the buffered data block, when the decoding fails, it is determined whether the current timing value of the timer reaches a time threshold;
  • each received data block repeatedly transmitted by the received terminal in the current retransmission process is cached in the memory 1002;
  • each of the data blocks repeatedly received by the received terminal during the current retransmission and the buffered data block are discarded.
  • each of the data blocks that are repeatedly sent by the received terminal in the current retransmission process and the cached data block. Do not do anything.
  • timer and the counter can also be implemented in combination, which is similar to the above, and will not be further described herein.
  • the device shown in FIG. 10 can be implemented by referring to the device embodiment shown in FIG. 3, and details are not described herein again.
  • the embodiment of the present invention further provides an apparatus for retransmitting data.
  • the apparatus may be disposed on a terminal side, and the apparatus includes: a processor 1101, a memory 1102, and a transceiver 1103.
  • the transceiver 1103 is configured to implement the functions implemented by the sending unit 402 and the receiving unit 401 shown in FIG. 4 .
  • the transceiver 1103 is configured to receive an indication message sent by the network side when determining that the decoding of the received data block fails, where the indication message is used to indicate that the data block is retransmitted;
  • the processor 1101 is configured to process the indication message received by the transceiver 1103.
  • the transceiver 1103 is further configured to repeatedly send the data block in the current retransmission process according to the instruction message processed by the processor 1101, where the number of times the data block is repeatedly sent during the retransmission is smaller than the normal data is sent. The number of blocks.
  • the apparatus for retransmitting data provided by the embodiment of the present invention reduces the number of times of retransmission when the data block is retransmitted, that is, the number of times of retransmitting the data block, that is, reduces the number of times of retransmitting the data block, thereby saving network transmission resources. And because the retransmission is continuous repeated transmission, and is the same as the prior art, thereby It also shortens the transmission delay.
  • the processor 1101 is further configured to determine, by the network side, a first uplink scheduling identifier USF for normal transmission of data blocks and a second USF for retransmitting data blocks, where the first USF is used to indicate The terminal normally sends the uplink resource used by the data block, where the second USF is used to indicate the uplink resource used by the terminal to retransmit the data block;
  • the transceiver 1103 is specifically configured to allocate, on the network side, an uplink resource corresponding to the second USF, and repeatedly send the data block in the current retransmission process according to the indication message.
  • the transceiver 1103 is configured to send the data block normally on the uplink resource indicated by the first uplink scheduling identifier USF allocated by the network side, and allocate the uplink resource indicated by the second USF on the network side.
  • the data block is repeatedly sent in the current retransmission process according to the indication message.
  • the number of times the network side received by the transceiver 1103 repeatedly transmits the data block when carrying the retransmission in the indication message sent when the decoding of the received data block fails is performed. Transmitting the data block according to the number of times the data block is repeatedly sent in the indication message, and repeating the number of times in the current retransmission process;
  • the processor 1101 is further configured to predetermine the number of times the data block is repeatedly sent each time the retransmission is performed.
  • the transceiver 1103 is specifically configured to send the data block by repeating a preset number of times in the current retransmission process according to the indication message.
  • 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 invention can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.
  • computer-usable storage media 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 for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

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Abstract

本发明提供了一种重传数据的方法及装置，用于解决现有技术中存在的网络传输资源浪费的问题。该方法包括：在确定对接收到的数据块解码失败后，向终端发送指示消息，所述指示消息用于指示终端重传所述数据块；接收所述终端根据所述指示消息在本回重传过程中重复发送的各个数据块，其中，重传过程中重复发送所述数据块的次数小于所述终端正常发送所述数据块的次数；将接收到的所述终端在本回重传过程中重复发送的各个数据块与已缓存的所述数据块联合解码，所述已缓存的所述数据块包括接收到的所述终端正常发送的所述数据块，或者包括接收到的所述终端正常发送的所述数据块和接收到的所述终端已经重传的所述数据块。

Description

一种重传数据的方法及装置 技术领域
本发明涉及通信技术领域，尤其涉及一种重传数据的方法及装置。
背景技术
网络侧具体有重传机制，网络侧在接收终端发送的数据块后，通知终端网络侧接收数据块的状态，状态包括正确接收(ACK)，即网络侧对接收到的数据块正确解码，未正确接收(NACK)，即网络侧对接收到的数据块进行解码失败。针对网络侧未正确接收的数据块，终端会根据网络侧指示的数据块接收状态，在后续时刻重发，直到网络侧正确接收为止。
为了降低网络接收端的误码率，实现网络侧的覆盖增强，在现有技术中，终端无论在正常发送数据块时还是重传数据块时均需要重复发送N次。即：终端先向网络侧正常发送数据块，重复发送N次，网络侧在接收到终端重复发送N次的数据块后进行解码，在解码失败时，则确定需要重传该数据块，向终端发送重传该数据块的指示消息，终端根据指示消息在后续时刻重复发送N次该数据块，若网络侧对该数据块依然解码失败，则会指示终端再次重复发送N次该数据块，直到网络侧对该数据块解码成功为止。
采用上述重传方案，尽管降低了网络接收端的误码率，但是由于每次重传数据块时，都需要重复发送N次数据块，导致浪费了网络传输资源。
发明内容
本发明实施例提供了一种重传数据的方法及装置，用于解决现有技术中存在的网络传输资源浪费的问题。
第一方面，本发明实施例提供了一种重传数据的装置，该装置包括：
处理单元，用于确定对接收到的数据块的解码情况；
发送单元，用于在所述处理单元确定对接收到的数据块解码失败后，向 终端发送指示消息，所述指示消息用于指示终端重传所述数据块；
接收单元，用于接收所述终端根据指示消息在本回重传过程中重复发送的各个数据块，其中，重传过程中重复发送所述数据块次数小于所述终端正常发送所述数据块的次数；
所述处理单元，还用于将所述接收单元接收到的所述终端在本回重传过程中重复发送的各个数据块与已缓存的所述数据块联合解码，所述已缓存的所述数据块包括接收到的所述终端正常发送的所述数据块，或者接收到的所述终端正常发送的所述数据块和接收到的所述终端已经重传的所述数据块。
结合第一方面，在第一方面的第一种可能的实现方式中，所述处理单元还用于：
为终端分配第一上行调度标识USF和第二USF，所述第一USF用于指示终端正常发送数据块所使用的上行资源，所述第二USF用于指示终端重传数据块所使用的上行资源；
所述接收单元，具体用于在所述处理单元分配的第二USF指示的上行资源上，接收所述终端在本回重传过程中重复发送的各个数据块。
结合第一方面或第一方面的第一种可能的实现方式，在第一方面的第二种可能的实现方式中，所述发送单元，具体用于在向所述终端发送的指示消息中携带重复发送所述数据块的次数；
所述接收单元，具体用于接收所述终端根据所述指示消息中携带的重复发送所述数据块的次数，在本回重传过程中重复所述次数发送的各个数据块。
结合第一方面和第一方面的第一种至第二种可能的实现方式中的任意一种，在第一方面的第三种可能的实现方式中，所述装置还包括存储单元；
所述处理单元，还用于：
在所述接收单元接收到所述终端在首回重传过程中重复发送的各个数据块时，启动预设的计数器；并
在后续所述接收单元接收到所述终端在每回重传过程中重复发送的各个数据块时，将所述计数器加1；
在将所述接收单元接收到的终端在本回重传过程中重复发送的各个数据块与已缓存的数据块联合解码后，在解码失败时，判断所述计数器的当前计数值是否达到计数门限；
在判断所述计数器的当前计数值未达到计数门限时，将接收到的终端在本回重传过程中重复发送的各个数据块缓存在所述存储单元中；并
在判断所述计数器的当前计数值达到计数门限时，丢弃接收到的终端在本回重传过程中重复发送的各个所述数据块、以及已缓存的所述数据块。
结合第一方面和第一方面的第一种至第二种可能的实现方式中的任意一种，在第一方面的第四种可能的实现方式中，所述装置还包括存储单元；
所述处理单元，还用于：
在第一次确定对接收到的数据块解码失败后，所述发送单元向所述终端发送指示消息时，启动预设的计数器；并
在后续每次确定对所述接收单元接收到的数据块解码失败后，所述发送单元向终端发送指示消息时，将所述计数器加1；
在将所述接收单元接收到的终端在本回重传过程中重复发送的各个数据块与已缓存的数据块联合解码后，在解码失败时，判断所述计数器的当前计数值是否达到计数门限；
在判断所述计数器的当前计数值未达到计数门限时，将接收到的终端在本回重传过程中重复发送的各个数据块缓存在所述存储单元中；并
在判断所述计数器的当前计数值达到计数门限时，丢弃接收到的终端在本回重传过程中重复发送的各个所述数据块、以及已缓存的所述数据块。
结合第一方面和第一方面的第一种至第二种可能的实现方式中的任意一种，在第一方面的第五种可能的实现方式中，所述装置还包括存储单元；
所述处理单元，还用于：
在所述接收单元接收到所述终端在首回重传过程中重复发送的各个数据块时，启动预设的计时器；并
在将所述接收单元接收到的终端在本回重传过程中重复发送的各个数据 块与已缓存的所述数据块联合解码后，在解码失败时，判断所述计时器的当前计时值是否达到时间门限；
在判断所述计时器的当前计时值未达到时间门限时，将接收到的终端在本回重传过程中重复发送的各个数据块缓存在所述存储单元中；并
在判断所述计时器的当前计时值达到时间门限时，丢弃接收到的终端在本回重传过程中重复发送的各个所述数据块、以及已缓存的所述数据块。
结合第一方面和第一方面的第一种至第二种可能的实现方式中的任意一种，在第一方面的第六种可能的实现方式中，所述装置还包括存储单元；
所述处理单元，还用于：
在第一次确定对接收到的数据块解码失败后，所述发送单元向终端发送指示消息时，启动预设的定时器；
在将所述接收单元接收到的终端在本回重传过程中重新发送的各个数据块与已缓存的所述数据块联合解码后，在解码失败时，判断所述计时器的当前计时值是否达到时间门限；
在判断所述计时器的当前计时值未达到时间门限时，将接收到的终端在本回重传过程中重复发送的各个数据块缓存在所述存储单元中；并
在判断所述计时器的当前计时值达到时间门限时，丢弃接收到的终端在本回重传过程中重复发送的各个所述数据块、以及已缓存的所述数据块。
第二方面，本发明实施例提供了一种重传数据的装置，该装置包括：
接收单元，用于接收网络侧在确定对接收到的数据块解码失败时发送的指示消息，所述指示消息用于指示重传所述数据块；
发送单元，用于根据指示消息在本回重传过程中重复发送所述数据块，其中，重传过程中重复发送所述数据块的次数小于正常发送所述数据块的次数。
结合第二方面，在第二方面的第一种可能的实现方式中，所述发送单元，具体用于在所述网络侧分配的第一上行调度标识USF指示的上行资源上正常发送所述数据块，并在网络侧分配的第二USF指示的上行资源上，根据所述指 示消息在本回重传过程中重复发送所述数据块。
结合第二方面或者第二方面的第一种可能的实现方式，在第二方面的第二种可能的实现方式中，所述发送单元，具体用于：
根据所述指示消息中携带的重复发送所述数据块的次数，在本回重传过程中重复所述次数发送所述数据块；或者
根据所述指示消息，在本回重传过程中重复预设次数发送所述数据块。
第三方面，本发明实施例还提供了一种重传数据的方法，该方法包括：
在确定对接收到的数据块解码失败后，向终端发送指示消息，所述指示消息用于指示终端重传所述数据块；
接收所述终端根据所述指示消息在本回重传过程中重复发送的各个数据块，其中，重传过程中重复发送所述数据块的次数小于所述终端正常发送所述数据块的次数；
将接收到的所述终端在本回重传过程中重复发送的各个数据块与已缓存的所述数据块联合解码，所述已缓存的所述数据块包括接收到的所述终端正常发送的所述数据块，或者包括接收到的所述终端正常发送的所述数据块和接收到的所述终端已经重传的所述数据块。
结合第三方面，在第三方面的第一种可能的实现方式中，所述方法还包括：
为终端分配第一上行调度标识USF和第二USF，所述第一USF用于指示终端正常发送数据块所使用的上行资源，所述第二USF用于指示终端重传数据块所使用的上行资源；
接收所述终端在本回重传过程中重复发送的各个数据块，具体包括：
在为终端分配的第二USF指示的上行资源上，接收所述终端在本回重传过程中重复发送的各个数据块。
结合第三方面或第三方面的第一种可能的实现方式，在第三方面的第二种可能的实现方式中，所述指示消息中携带有重复发送所述数据块的次数；
接收所述终端根据所述指示消息在本回重传过程中重复发送的各个数据 块，包括：
接收所述终端根据所述指示消息中携带的重复发送所述数据块的次数，在本回重传过程中重复所述次数发送的各个数据块。
结合第三方面和第三方面的第一种至第二种可能的实现方式中的任意一种，在第三方面的第三种可能的实现方式中，所述方法还包括：
在接收到所述终端在首回重传过程中重复发送的各个数据块时，启动预设的计数器；并
在后续接收到所述终端在每回重传过程中重复发送的各个数据块时，将所述计数器加1；
在将接收到的终端在本回重传过程中重复发送的各个数据块与已缓存的数据块联合解码后，在解码失败时，判断所述计数器的当前计数值是否达到计数门限，若是，缓存接收到的终端在本回重传过程中重复发送的各个数据块；若否，丢弃接收到的终端在本回重传过程中重复发送的各个所述数据块、以及已缓存的所述数据块。
结合第三方面和第三方面的第一种至第二种可能的实现方式中的任意一种，在第三方面的第四种可能的实现方式中，所述方法还包括：
在第一次确定对接收到的数据块解码失败后，向终端发送指示消息时，启动预设的计数器；并
在后续每次确定对接收到的数据块解码失败后，向终端发送指示消息时，将所述计数器加1；
在将接收到的终端在本回重传过程中重复发送的各个数据块与已缓存的数据块联合解码后，在解码失败时，判断所述计数器的当前计数值是否达到计数门限，若否，缓存接收到的终端在本回重传过程中重复发送的各个数据块；若是，丢弃接收到的终端在本回重传过程中重复发送的各个所述数据块、以及已缓存的所述数据块。
结合第三方面和第三方面的第一种至第二种可能的实现方式中的任意一种，在第三方面的第五种可能的实现方式中，所述方法还包括：
在接收到所述终端在首回重传过程中重复发送的各个数据块时，启动预设的计时器；并
在将接收到的终端在本回重传过程中重复发送的各个数据块与已缓存的所述数据块联合解码后，在解码失败时，判断所述计时器的当前计时值是否达到时间门限，若否，缓存接收到的终端在本回重传过程中重复发送的各个数据块；若是，丢弃接收到的终端在本回重传过程中重复发送的各个所述数据块、以及已缓存的所述数据块。
结合第三方面和第三方面的第一种至第二种可能的实现方式中的任意一种，在第三方面的第六种可能的实现方式中，所述方法还包括：
在第一次确定对接收到的数据块解码失败后，向终端发送指示消息时，启动预设的定时器；
在将接收到的终端在本回重传过程中重新发送的各个数据块与已缓存的所述数据块联合解码后，在解码失败时，判断所述计时器的当前计时值是否达到时间门限，若否，缓存接收到的终端在本回重传过程中重复发送的各个数据块；若是，丢弃接收到的终端在本回重传过程中重复发送的各个所述数据块、以及已缓存的所述数据块。
第四方面，本发明实施例提供了一种重传数据的方法，该方法包括：
接收网络侧在确定对接收到的数据块解码失败时发送的指示消息，所述指示消息用于指示重传所述数据块；
根据所述指示消息在本回重传过程中重复发送所述数据块，其中，重传过程中重复发送所述数据块的次数小于正常发送所述数据块的次数。
结合第四方面，在第四方面的第一种可能的实现方式中，所述方法还包括：
确定所述网络侧为终端分配的第一上行调度标识USF和第二USF，其中第一USF用于指示终端正常发送数据块所使用的上行资源，所述第二USF用于指示终端重传数据块所使用的上行资源；
根据所述指示消息在本回重传过程中重复发送所述数据块，包括：
在所述网络侧分配的第二USF所指示的上行资源上，根据所述指示消息在本回重传过程中重复发送所述数据块。
结合第四方面或者第四方面的第一种可能的实现方式，在第四方面的第二种可能的实现方式中，根据所述指示消息在本回重传过程中重复发送所述数据块，包括：
根据所述指示消息中携带的重复发送所述数据块的次数，在本回重传过程中重复所述次数发送所述数据块；或者
根据所述指示消息，在本回重传过程中重复预设次数发送所述数据块。
利用本发明实施例提供的方案，在重传数据块时重传的次数小于正常发送数据块的次数，即，减少了重传数据块的次数，从而节省了网络传输资源，并且由于重传时为连续重复发送，且与现有技术相同，从而还缩短了传输的时延。并且由于终端重复发送以及网络侧接收数据块的次数的减少，从而减少了终端以及网络侧电量的消耗。
附图说明
图1为本发明实施例提供的网络侧利用USF进行调度的过程示意图；
图2为本发明实施例提供的网络侧为终端分配的USF与上行资源的对应关系示意图；
图3为本发明实施例一提供的重传数据的装置示意图；
图4为本发明实施例二提供的重传数据的装置示意图；
图5为本发明实施例提供的第一种重传数据的方法流程图；
图6为本发明实施例提供的第二种重传数据的方法流程图；
图7为本发明实施例提供的第三种重传数据的方法流程图；
图8为本发明实施例提供的第四种重传数据的方法流程图；
图9为本发明实施例提供的第三种重传数据的方法流程图；
图10为本发明实施例三提供的重传数据的装置示意图；
图11为本发明实施例四提供的重传数据的装置示意图。
具体实施方式
为了使本发明的目的、技术方案和优点更加清楚，下面将结合附图对本发明作进一步地详细描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其它实施例，都属于本发明保护的范围。
本发明的说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。应该理解这样使用的术语在适当情况下可以互换，这仅仅是描述本发明的实施例中对相同属性的对象在描述时所采用的区分方式。
本发明实施例中网络侧通过向终端发送重传数据块的指示消息，从而终端根据该指示消息向网络侧重复发送所述数据块，且该重复发送所述数据块的次数小于首回发送该数据块的次数，其中，网络侧将接收到的终端正常发送的所述数据块进行缓存。网络侧将接收到终端重传的所述数据块与已缓存的所述数据块联合解码，若解码失败，将接收到的重传的所述数据块进行缓存，并向所述终端再次发送重传数据的指示消息以指示所述终端再次重复发送所述数据块。由于本发明实施例减少了重传数据块的次数，从而节省了网络传输资源，并且由于重传时为连续重复发送，且与现有技术相同，从而还缩短了传输的时延。
在本发明实施例中，终端(Terminal)，可称之为用户设备(User Equipment，简称为“UE”)、移动台(Mobile Station，简称为“MS”)或移动终端(Mobile Terminal)等，该终端可以经无线接入网(Radio Access Network，简称为“RAN”)与一个或多个核心网进行通信。
在本发明实施例中，网络侧可以是GSM或CDMA中的基站(BTS，Base Transceiver Station)，也可以是WCDMA中的节点B(NodeB)，还可以是LTE中的演进型节点B(eNB或e-NodeB，evolved Node B)或者中继(Relay)， 本发明实施例并不限定。
下面结合附图对本发明实施例作具体说明。
首先详细说明一下网络侧利用USF进行调度的详细过程，如图1所示。
网络侧给终端分配上行信道以及USF(Uplink Schedule Flag，上行调度标识)。
终端在分配的上行信道对应的下行信道上监听所有下行块(包括数据块和控制块)，在下行块的块头中携带USF。
若终端监听到某个下行块的块头中携带了终端自身所属的USF，则在该USF对应的上行资源上发送上行数据块，则完成了本次调度。
具体的，如图2所示，每个下行块的结构包括块头和数据，在块头中包含了信元USF，终端在接收到下行块后，解码出其中的USF。例如，在下行信道的B2块中包含USF0，则USF0所属的终端将在USF0对应的上行资源发送上行数据块(以下简称数据块)，完成一次调度。
本发明实施例提供了一种重传数据的装置，该装置设置于网络侧，如图3所示，该装置包括处理单元301，发送单元302，接收单元303：
处理单元301，还用于确定对接收到的数据块的解码情况；
发送单元302，用于在所述处理单元301确定对接收到的数据块解码失败后，向终端发送指示消息，所述指示消息用于指示终端重传所述数据块；
用于指示终端重传所述数据块具体，可以是在指示消息中携带所述数据块的标识信息，从而指示终端重传该标识信息所标识的数据块。
接收单元303，用于接收所述终端根据指示消息在本回重传过程中重复发送的各个数据块，其中，重传过程中重复发送所述数据块次数小于所述终端正常发送所述数据块的次数；
具体的，终端根据指示消息在本回重传过程中重复发送指示消息中所指示的数据块，因此接收单元303会接收所述终端根据指示消息在本回重传过程中重复发送的各个数据块。
可选的，所述发送单元302具体用于在向所述终端发送的指示消息中携带 重传时重复发送所述数据块的次数。则终端根据指示消息在本回重传过程中重复发送的各个数据块，重传时重复发送的次数为指示消息中指示的次数。所述接收单元303，具体用于接收所述终端根据所述指示消息中携带的重复发送所述数据块的次数，在本回重传过程中重复所述次数发送的各个数据块。
本发明实施例中指示消息中携带的重传时重复发送所述数据块的次数可以是预先设定的，还可以是网络侧根据信道质量和/或解码状态确定的。
当然重复发送所述数据块的次数还可以是终端根据信道质量来确定。也可以是终端预先规定每次重传时重复发送所述数据块的次数。例如：规定每次重传时的重复发送的次数为N/2，其中，N为首回发送所述数据块的次数，即正常发送所述数据块的次数；或者，第一次重传时重复发送的次数为N/2，第二次重传时重复发送的次数为N/2，依次递减等等。
所述处理单元301，还用于将所述接收单元303接收到的所述终端在本回重传过程中重复发送的各个数据块与已缓存的所述数据块联合解码，所述已缓存的所述数据块包括接收到的所述终端正常发送的所述数据块，或者接收到的所述终端正常发送的所述数据块和接收到的所述终端已经重传的所述数据块。
利用本发明实施例提供的重传数据的装置，在重传数据块时重传的次数小于正常发送数据块的次数，即，减少了重传数据块的次数，从而节省了网络传输资源，并且由于重传时为连续重复发送，且与现有技术相同，从而还缩短了传输的时延。并且由于终端重复发送以及网络侧接收数据块的次数的减少，从而减少了终端以及网络侧电量的消耗。
由于本发明实施例提供的方案，在网络侧对接收到的数据块进行解码失败后，将接收到的数据块进行缓存，从而在后续接收到的重传的数据块时，与已缓存的数据块联合解码，从而不会因为重传数据块时重传次数的减少而影响解码率。
其中，处理单元301还用于为终端分配USF，从而以使终端在USF对应的上行资源发送数据块。
具体的，处理单元301可以为终端分配一个USF，该USF指示终端正常发送数据块及重传数据块所使用的上行资源。终端在该USF指示的上行资源正常发送数据块，和重传数据块。
处理单元301：还可以为终端分配两个USF，第一USF用于指示终端正常发送数据块所使用的上行资源，所述第二USF用于指示终端重传数据块所使用的上行资源。从而终端在第一USF对应的上行资源正常发送数据块，在需要重传数据块时，即网络侧对接收到终端发送的数据块进行解码且解码失败时，在第二USF对应的上行资源重传该数据块。那么接收单元303，具体用于在所述处理单元301分配的第二USF指示的上行资源上，接收所述终端在本回重传过程中重复发送的各个数据块。
具体的，网络侧为终端分配第一USF1可以在正常发送数据块之前。为终端分配第二USF，可以在发送正常数据之前。也可以在确定解码失败之后，那么分配第二USF可以携带在用于指示终端重传的指示消息中。当然还可以网络侧与终端预先协商确定分配用于发送正常数据的第一USF，及用于重传数据块的第二USF。
在第一种可能的实现方式中，所述装置还包括存储单元；
所述处理单元301，还用于在所述接收单元303接收到所述终端在首回重传过程中重复发送的各个数据块时，启动预设的计数器；并在后续所述接收单元303接收到所述终端在每回重传过程中重复发送的各个数据块时，将所述计数器加1；在将所述接收单元303接收到的终端在本回重传过程中重复发送的各个数据块与已缓存的数据块联合解码后，在解码失败时，判断所述计数器的当前计数值是否达到计数门限；在判断所述计数器的当前计数值未达到计数门限时，将接收到的终端在本回重传过程中重复发送的各个数据块缓存在所述存储单元中；并在判断所述计数器的当前计数值达到计数门限时，丢弃接收到的终端在本回重传过程中重复发送的各个所述数据块、以及已缓存的所述数据块。
在第二种可能的实现方式中，所述装置还包括存储单元；
所述处理单元301还用于：
在第一次确定对接收到的数据块解码失败后，所述发送单元302向所述终端发送指示消息时，启动预设的计数器；并在后续每次确定对所述接收单元303接收到的数据块解码失败后，所述发送单元302向终端发送指示消息时，将所述计数器加1；在将所述接收单元303接收到的终端在本回重传过程中重复发送的各个数据块与已缓存的数据块联合解码后，在解码失败时，判断所述计数器的当前计数值是否达到计数门限；在判断所述计数器的当前计数值未达到计数门限时，将接收到的终端在本回重传过程中重复发送的各个数据块缓存在所述存储单元中；并在判断所述计数器的当前计数值达到计数门限时，丢弃接收到的终端在本回重传过程中重复发送的各个所述数据块、以及已缓存的所述数据块。
当然，在所述处理单元301判断所述计数器的当前计数值达到计数门限时，对接收到的终端在本回重传过程中重复发送的各个所述数据块、以及已缓存的所述数据块不做任何处理。
在第三种可能的实现方式中，所述装置还包括存储单元；
所述处理单元301，还用于在所述接收单元303接收到所述终端在首回重传过程中重复发送的各个数据块时，启动预设的计时器；并在将所述接收单元303接收到的终端在本回重传过程中重复发送的各个数据块与已缓存的所述数据块联合解码后，在解码失败时，判断所述计时器的当前计时值是否达到时间门限；
在判断所述计时器的当前计时值未达到时间门限时，将接收到的终端在本回重传过程中重复发送的各个数据块缓存在所述存储单元中；并
在判断所述计时器的当前计时值达到时间门限时，丢弃接收到的终端在本回重传过程中重复发送的各个所述数据块、以及已缓存的所述数据块。
在第四种可能的实现方式中，所述装置还包括存储单元；
所述处理单元301，还用于在第一次确定对接收到的数据块解码失败后，所述发送单元302向终端发送指示消息时，启动预设的定时器；在将所述接收 单元303接收到的终端在本回重传过程中重新发送的各个数据块与已缓存的所述数据块联合解码后，在解码失败时，判断所述计时器的当前计时值是否达到时间门限；
在判断所述计时器的当前计时值未达到时间门限时，将接收到的终端在本回重传过程中重复发送的各个数据块缓存在所述存储单元中；并
在判断所述计时器的当前计时值达到时间门限时，丢弃接收到的终端在本回重传过程中重复发送的各个所述数据块、以及已缓存的所述数据块。
当然，在所述处理单元301判断所述计数器的当前计时值达到时间门限时，对接收到的终端在本回重传过程中重复发送的各个所述数据块、以及已缓存的所述数据块不做任何处理。
当然还可以将计时器与计数器联合起来实施，具体与上述类似，在此不再赘述。
本发明实施例还提供了一种重传数据的装置，该装置应用于终端侧，如图4所示，该装置包括：
接收单元401，用于接收网络侧在确定对接收到的数据块解码失败时发送的指示消息，所述指示消息用于指示重传所述数据块；
发送单元402，用于根据指示消息在本回重传过程中重复发送所述数据块，其中，重传过程中重复发送所述数据块的次数小于正常发送所述数据块的次数。
利用本发明实施例提供的重传数据的装置，在重传数据块时，重传的次数小于正常发送数据块的次数，即，减少了重传数据块的次数，从而节省了网络传输资源，并且由于重传时为连续重复发送，且与现有技术相同，从而还缩短了传输的时延。
所述发送单元402，具体用于在所述网络侧分配的第一上行调度标识USF指示的上行资源上正常发送所述数据块，并在网络侧分配的第二USF指示的上行资源上，根据所述指示消息在本回重传过程中重复发送所述数据块。
在其中一种可能的实现方式中，所述接收单元401接收到的网络侧在确定 对接收到的数据块解码失败时发送的指示消息中还携带重传时重复发送所述数据块的次数；所述发送单元402，具体用于根据所述指示消息中携带的重复发送所述数据块的次数，在本回重传过程中重复所述次数发送所述数据块；
在另一种可能的实现方式中，该装置还可以包括处理单元，用于预先确定每次重传时重复发送所述数据块的次数。
所述发送单元402，具体用于根据所述指示消息，在本回重传过程中重复预设次数发送所述数据块。
本发明实施例提供了一种重传数据的方法，如图5所示，该方法应用于网络侧，包括：
步骤501，在确定对接收到的数据块解码失败后，向终端发送指示消息，所述指示消息用于指示终端重传所述数据块；
步骤502，接收所述终端根据所述指示消息在本回重传过程中重复发送的各个数据块，其中，重传过程中重复发送所述数据块的次数小于所述终端正常发送所述数据块的次数；
其中，向终端发送的指示消息还可以携带重传时重复发送所述数据块的次数，则终端根据指示消息在本回重传过程中重复发送的各个数据块，重传时重复发送的次数为指示消息中指示的次数。
接收所述终端根据指示消息在本回重传过程中重复发送的各个数据块，具体包括：接收所述终端根据所述指示消息中携带的重复发送所述数据块的次数，在本回重传过程中重复所述次数发送的各个数据块。
本发明实施例中指示消息中携带的重传时重复发送所述数据块的次数可以是预先设定的，还可以是网络侧根据信道质量和/或解码状态确定的。
当然重复发送所述数据块的次数还可以是终端根据信道质量来确定。
步骤503，将接收到的所述终端在本回重传过程中重复发送的各个数据块与已缓存的所述数据块联合解码，所述已缓存的所述数据块包括接收到的所述终端正常发送的所述数据块，或者包括接收到的所述终端正常发送的所述数据块和接收到的所述终端已经重传的所述数据块。
利用本发明实施例提供的重传数据的方法，在重传数据块时重传的次数小于正常发送数据块的次数，即，减少了重传数据块的次数，从而节省了网络传输资源，并且由于重传时为连续重复发送，且与现有技术相同，从而还缩短了传输的时延。并且由于终端重复发送以及网络侧接收数据块的次数的减少，从而减少了终端以及网络侧电量的消耗。
由于本发明实施例提供的方案，在网络侧对接收到的数据块进行解码失败后，将接收到的数据块进行缓存，从而在后续接收到的重传的数据块时，与已缓存的数据块联合解码，从而不会因为重传数据块时重传次数的减少而影响解码率。
其中，还可以为终端分配USF，从而以使终端在USF对应的上行资源发送数据块。
具体的，可以为终端分配一个USF，终端在该USF对应的上行资源正常发送数据块，和重传数据块。还可以为终端分配两个USF，第一USF用于指示终端正常发送数据块所使用的上行资源，所述第二USF用于指示终端重传数据块所使用的上行资源。从而终端在第一USF对应的上行资源正常发送数据块，在需要重传数据块时，即网络侧对接收到终端发送的数据块进行解码且解码失败时，在第二USF对应的上行资源重传该数据块。那么接收所述终端根据指示消息在本回重传过程中重复发送的各个数据块，具体包括：在为终端分配的第二USF对应的上行资源上，接收所述终端在本回重传过程中重复发送的各个数据块。
其中，将接收到的所述终端在本回重传过程中重复发送的各个数据块与已缓存的所述数据块联合解码，具体可以是以下实现方式中的任意一种：
第一种实现方式，将接收到的所述数据块与已缓存的所述数据块合并后解码。
第二种实现方式，分别将接收到的所述数据块和已缓存的所述数据块解码，然后再将解码后的数据合并。
其中，在对接收到的所述终端在本回重传过程中重复发送的各个数据块 与已缓存的所述数据块进行联合解码失败后，可以缓存接收到的所述终端在本回重传过程中重复发送的各个数据块。
具体的，缓存接收到的所述终端在本回重传过程中重复发送的各个数据块，可以是将接收到的所述数据块与已缓存的所述数据块缓存在同一文件下。具体的，还可以将接收到的所述终端在本回重传过程中重复发送的各个数据块和已缓存的所述数据块合并后缓存并替代合并前已缓存的所述数据块等等。
作为一个示例，如图6所示的重传数据的方法，该示例中以网络侧为终端分配两个USF为例进行说明。
步骤601：网络侧为终端分配第一USF和第二USF，所述第一USF用于指示终端正常发送数据块所使用的上行资源，所述第二USF用于指示终端重传数据块所使用的上行资源。执行步骤602。
步骤602：网络侧调度终端的第一USF。以使终端在第一USF指示的上行资源重复发送数据块B，重复的次数为N，N为正整数。执行步骤603。
步骤603：网络侧接收终端在第一USF指示的上行资源重复发送的数据块B。执行步骤604。
步骤604：网络侧确定对接收到终端在第一USF对应的上行资源重复发送的数据块B进行解码的解码状态，若解码失败，执行步骤605，若解码成功，执行步骤606。
步骤605：缓存接收到的终端在第一USF指示的上行资源重复发送的数据块B；执行步骤607。
步骤606：结束本次发送过程。网络侧向终端发送释放上行连接的指示消息。
步骤607：网络侧向终端发送指示消息，该指示消息用于指示终端重传该数据块B。执行步骤608。
步骤608：网络侧调度终端的第二USF。以使终端在第二USF指示的上行资源重复发送数据块B，重复的次数小于N。执行步骤609。
步骤609：网络侧接收终端在第二USF指示的上行资源重传的数据块B。执行步骤610。
步骤610：网络侧确定将接收到的终端在第二USF指示的上行资源重传的数据块B与网络侧已缓存的数据块B合并后解码的解码状态，若解码失败，执行步骤611，若解码成功，执行步骤606。
步骤611：网络侧缓存接收到的终端在第二USF对应的上行资源重传的数据块B。执行步骤607。具体的，将接收到的终端在第二USF对应的上行资源重传的数据块B缓存在已缓存的数据块所在的文件夹下。
其中，可以增加计数器或者计时器，在满足条件时对接收到的终端在本回重传过程中重复发送的各个所述数据块、以及已缓存的所述数据块进行处理。具体如下：
在第一种可能的实现方式中，在接收到所述终端在首回重传过程中重复发送的各个数据块时，启动预设的计数器；并在后续接收到所述终端在每回重传过程中重复发送的各个数据块时，将所述计数器加1；
在将接收到的终端在本回重传过程中重复发送的各个数据块与已缓存的数据块联合解码后，在解码失败时，判断所述计数器的当前计数值是否达到计数门限，若是，缓存接收到的终端在本回重传过程中重复发送的各个数据块；若否，丢弃接收到的终端在本回重传过程中重复发送的各个所述数据块、以及已缓存的所述数据块。当然还可以对接收到的终端在本回重传过程中重复发送的各个所述数据块、以及已缓存的所述数据块不进行任何处理。
在第二种可能的实现方式中，在第一次确定对接收到的数据块解码失败后，向终端发送指示消息时，启动预设的计数器；并在后续每次确定对接收到的数据块解码失败后，向终端发送指示消息时，将所述计数器加1；
在将接收到的终端在本回重传过程中重复发送的各个数据块与已缓存的数据块联合解码后，在解码失败时，判断所述计数器的当前计数值是否达到计数门限，若否，缓存接收到的终端在本回重传过程中重复发送的各个数据块；若是，丢弃接收到的终端在本回重传过程中重复发送的各个所述数据块、 以及已缓存的所述数据块。当然还可以对接收到的终端在本回重传过程中重复发送的各个所述数据块、以及已缓存的所述数据块不进行任何处理。
在第三种可能的实现方式中，在接收到所述终端在首回重传过程中重复发送的各个数据块时，启动预设的计时器；并在将接收到的终端在本回重传过程中重复发送的各个数据块与已缓存的所述数据块联合解码后，在解码失败时，判断所述计时器的当前计时值是否达到时间门限，若否，缓存接收到的终端在本回重传过程中重复发送的各个数据块；若是，丢弃接收到的终端在本回重传过程中重复发送的各个所述数据块、以及已缓存的所述数据块。
在第四种可能的实现方式中，在第一次确定对接收到的数据块解码失败后，向终端发送指示消息时，启动预设的定时器；
在将接收到的终端在本回重传过程中重新发送的各个数据块与已缓存的所述数据块联合解码后，在解码失败时，判断所述计时器的当前计时值是否达到时间门限，若否，缓存接收到的终端在本回重传过程中重复发送的各个数据块；若是，丢弃接收到的终端在本回重传过程中重复发送的各个所述数据块、以及已缓存的所述数据块。
作为一个示例，如图7所示的重传数据的方法。
步骤701：网络侧为终端分配两个上行调度标识USF，第一USF和第二USF，所述第一USF用于指示终端正常发送数据块所使用的资源，所述第二USF用于指示终端重传数据块所使用的上行资源。执行步骤702。
步骤702：网络侧调度终端的第一USF。以使终端在第一USF指示的上行资源上重复发送数据块B，重复的次数为N，N为正整数。执行步骤703。
步骤703：网络侧接收终端在第一USF指示的上行资源上重复发送的数据块B。执行步骤704。
步骤704：网络侧确定对接收到的终端在第一USF指示的上行资源上重复发送的数据块B进行解码的解码状态，若解码失败，执行步骤705，若解码成功，执行步骤706。
步骤705：缓存接收到的终端在第一USF指示的上行资源上重复发送的数 据块B。执行步骤707。
步骤706：结束本次发送过程。网络侧向终端发送释放上行连接的指示消息。
步骤707：向终端发送指示消息，该指示消息用于指示终端重传数据块B。执行步骤708。
步骤708：网络侧调度终端的第二USF。以使终端在第二USF指示的上行资源上重复发送数据块B，重复的次数小于N。执行步骤709。
步骤709：网络侧接收终端在第二USF指示的上行资源上重传的数据块B，并开启计数器，并将计数器加1(或者并开启计时器)。执行步骤710。
步骤710：网络侧确定将接收到的终端在第二USF指示的上行资源上重传的数据块B与网络侧已缓存的数据块B合并后解码的解码状态，若解码失败，执行步骤711，若解码成功，执行步骤706。
步骤711：网络侧判断计数器是否达到计数门限，若是，执行步骤712，若否，执行步骤713。
步骤712：网络侧缓存接收到的终端在第二USF指示的上行资源上重传的数据块B。执行步骤707。
步骤713：网络侧丢弃接收到的终端在第二USF指示的上行资源上重传的数据块B及已缓存的数据块B。
本发明实施例还提供了一种重传数据的方法，如图8所示，该方法应用于终端侧，该方法包括：
步骤801：接收网络侧在确定对接收到的数据块解码失败时发送的指示消息，所述指示消息用于指示重传所述数据块；
步骤802：根据所述指示消息在本回重传过程中重复发送所述数据块，其中，重传过程中重复发送所述数据块的次数小于正常发送所述数据块的次数。
具体的，接收到的网络侧在确定对接收到的数据块解码失败时发送的指示消息中还携带重传时重复发送所述数据块的次数；
或者，每次重传时重复发送所述数据块的次数为预先确定的。
其中，指示消息中携带的重传时重复发送所述数据块的次数可以是网络侧根据信道质量或者解码状态来确定。预先确定的每次重传时重复发送所述数据块的次数可以是由终端根据信道质量进行确定，也可以是预先确定每次重传时重复发送所述数据块的次数。例如：规定每次重传时的重复发送的次数为N/2，其中，N为首回发送所述数据块的次数，即正常发送所述数据块的次数；或者，第一次重传时重复发送的次数为N/2，第二次重传时重复发送的次数为N/2，依次递减等等。
步骤802根据所述指示消息在本回重传过程中重复发送所述数据块，具体可以包括：
根据所述指示消息中携带的重复发送所述数据块的次数，在本回重传过程中重复所述次数发送所述数据块；或者根据所述指示消息，在本回重传过程中重复预设次数发送所述数据块。
可选的，该方法还包括：在步骤801接收网络侧在确定对接收到的数据块解码失败时发送的指示消息之后，步骤802根据所述指示消息在本回重传过程中重复发送所述数据块之前，确定所述网络侧为终端分配的第一上行调度标识USF和第二USF，其中第一USF用于指示终端正常发送数据块所使用的上行资源，所述第二USF用于指示终端重传数据块所使用的上行资源；
具体的，终端可以在正常发送数据块之前，确定所述网络侧为终端分配的第一上行调度标识USF和第二USF，且只确定一次。还可以每次在发送数据块之前均确定，即，终端可以在正常发送数据块之前，确定所述网络侧为终端分配的用于正常发送数据块的第一USF，在接收网络侧在确定对接收到的数据块解码失败时发送的指示消息之后，根据所述指示消息在本回重传过程中重复发送所述数据块之前，确定所述网络侧为终端分配的用于重传数据块的第二USF。
则步骤802根据所述指示消息在本回重传过程中重复发送所述数据块，具体包括：
在所述网络侧分配第二USF所指示的上行资源上，根据所述指示消息在本 回重传过程中重复发送所述数据块。
具体的，终端接收网络侧在确定对接收到的数据块解码失败时发送的指示消息，确定该指示消息用于指示重传数据块，则需要确定重传该数据块所使用的资源，从而在所述网络侧所分配第一USF和第二USF中，确定用于重传数据块的第二USF，从而在第二USF对应的上行资源上，根据所述指示消息在本回重传过程中重复发送所述数据块。
可选的，所述指示消息还可以用于指示终端重传多个数据块。则终端在根据所述指示消息确定需要重传多个数据块时，根据各个数据块的编号顺序重传各个数据块。
其中，若终端未接收到网络侧发送的指示消息，则确定不需要重传所述数据块。则终端继续发送下一个数据块。
具体的，终端在向网络侧发送数据块的过程，若接收到网络侧发送的指示消息，则终端停止继续发送下一个数据块，优先发送指示消息中标识信息所标识的数据块。
可选的，终端接收到的网络侧在发送的用于重传数据块的指示消息中还携带重传时重复发送所述数据块的次数；
或者，每次重传时重复发送所述数据块的次数为预先确定的。
作为一个示例，该示例提供一种重传数据的方法，如图9所示，该方法包括：
步骤901：网络侧为终端分配USF。该USF用于上行调度，指示终端在发送数据块所使用的资源。执行步骤902。
步骤902：网络侧调度USF。执行步骤903。
步骤903：终端在USF指示的上行资源重复发送数据B；其中，重复的次数为N，N为正整数。执行步骤904。
步骤904：网络侧判断对接收到的终端在USF指示的上行资源重复发送的数据块B的进行解码的解码状态，若解码失败，执行步骤905，若解码成功，执行步骤907。
步骤905：网络侧缓存接收到的终端在USF指示的上行资源重复发送的数据块B。执行步骤906。
步骤906：网络侧向终端发送用于指示重传数据块的指示消息；该指示消息用于指示终端重传数据块B。执行步骤908。
步骤907：结束本次发送过程。网络侧向终端发送释放上行连接的指示消息。
步骤908：终端接收网络侧发送的所述指示消息，根据指示消息确定需要重传数据块B时，终端在USF指示的上行资源重传所述数据块B；其中，重传时重复发送数据块B的次数小于N。执行步骤909。
若指示消息中携带多个数据块的标识信息，则从编号最小的数据块开始重传。
若终端确定不需要重传时，即终端未收到用于指示重传的指示消息时，终端发送下一个数据块。
例如，待传输的数据包括数据块1、数据块2和数据块3。终端在向网络侧发送数据1后，发送数据块2时，接收到网络侧发送的指示消息，该指示消息用于重传数据块1，终端接收到该指示消息后，优先重传所述数据块1，重传完所述数据块1后，继续发送数据块2以及数据块3。
步骤909：网络侧接收终端在USF指示的上行资源重复发送的数据块B。执行步骤910。
步骤910：网络侧在确定接收到的所述数据块为重传的数据块时，确定将接收到的所述数据块与已缓存的所述数据块合并后解码的解码状态，若解码失败，执行步骤911，若解码成功，执行步骤907。
步骤911：网络侧缓存接收到的所述数据块。执行步906。
参见图10，本发明实施例还一种重传数据的装置，该装置可以设置于网络侧，该装置包括：处理器1001，存储器1002，收发器1003。其中，处理器1001用于实现图3所示的处理单元所实现的功能，收发器1003，用于实现图3所示的发送单元及接收单元所实现的功能。
所述处理器1001，存储器1002，收发器1003通过总线相互连接。总线可以是外设部件互连标准(peripheral component interconnect，简称PCI)总线或扩展工业标准结构(extended industry standard architecture，简称EISA)总线等。所述总线可以分为地址总线、数据总线、控制总线等。为便于表示，图10中仅用一条粗线表示，但并不表示仅有一根总线或一种类型的总线。
所述存储器1002，用于存放程序。具体地，程序可以包括程序代码，所述程序代码包括计算机操作指令。存储器1002可能包含随机存取存储器(random access memory，简称RAM)存储器，也可能还包括非易失性存储器(non-volatile memory)，例如至少一个磁盘存储器。
处理单元1001，用于确定对接收到的数据块解码情况；
收发器1003，用于在所述处理器1001确定对接收到的数据块解码失败后，向终端发送指示消息，所述指示消息用于指示终端重传所述数据块；接收所述终端根据指示消息在本回重传过程中重复发送的各个数据块，其中，重传过程中重复发送所述数据块次数小于所述终端正常发送所述数据块的次数；
所述处理器1001，还用于将所述接收单元接收到的所述终端在本回重传过程中重复发送的各个数据块与已缓存的所述数据块联合解码，所述已缓存的所述数据块包括接收到的所述终端正常发送的所述数据块，或者接收到的所述终端正常发送的所述数据块和接收到的所述终端已经重传的所述数据块。
其中，已缓存的所述数据块存储在存储器1002中。
利用本发明实施例提供的重传数据的装置，在重传数据块时重传的次数小于正常发送数据块的次数，即，减少了重传数据块的次数，从而节省了网络传输资源，并且由于重传时为连续重复发送，且与现有技术相同，从而还缩短了传输的时延。并且由于终端重复发送以及网络侧接收数据块的次数的减少，从而减少了终端以及网络侧电量的消耗。
由于本发明实施例提供的方案，在网络侧对接收到的数据块进行解码失败后，将接收到的数据块进行缓存，从而在后续接收到的重传的数据块时， 与已缓存的数据块联合解码，从而不会因为重传数据块时重传次数的减少而影响解码率。
其中，处理器1001还用于为终端分配USF，从而以使终端在USF对应的上行资源发送数据块。
具体的，处理器1001可以为终端分配一个USF，该USF指示终端正常发送数据块及重传数据块所使用的上行资源。终端在该USF指示的上行资源正常发送数据块，和重传数据块。
处理器1001：还可以为终端分配两个USF，第一USF用于指示终端正常发送数据块所使用的上行资源，所述第二USF用于指示终端重传数据块所使用的上行资源。从而终端在第一USF对应的上行资源正常发送数据块，在需要重传数据块时，即网络侧对接收到终端发送的数据块进行解码且解码失败时，在第二USF对应的上行资源重传该数据块。那么收发器1003，具体用于在所述处理器1001分配的第二USF指示的上行资源上，接收所述终端在本回重传过程中重复发送的各个数据块。
在第一种可能的实现方式中，该装置还包括计数器，所述处理器1001，还用于在所述收发器1003接收到所述终端在首回重传过程中重复发送的各个数据块时，启动预设的计数器；并在后续所述收发器1003接收到所述终端在每回重传过程中重复发送的各个数据块时，将所述计数器加1；在将收发器1003接收到的终端在本回重传过程中重复发送的各个数据块与已缓存的数据块联合解码后，在解码失败时，判断所述计数器的当前计数值是否达到计数门限；
所述存储器1002，还用于在所述处理器1001判断所述计数器的当前计数值达到未达到计数门限时，缓存接收到的终端在本回重传过程中重复发送的各个数据块；
所述处理器1003，还用于在判断所述计数器的当前计数值达到计数门限时，丢弃接收到的终端在本回重传过程中重复发送的各个所述数据块、以及已缓存的所述数据块。
在第二种可能的实现方式中，该装置还包括计数器，所述处理器1001还用于：
在第一次确定对接收到的数据块解码失败后，所述收发器1003向所述终端发送指示消息时，启动预设的计数器；并在后续每次确定对所述收发器1003接收到的数据块解码失败后，向终端发送指示消息时，将所述计数器加1；在将所述收发器1003接收到的终端在本回重传过程中重复发送的各个数据块与已缓存的数据块联合解码后，在解码失败时，判断所述计数器的当前计数值是否达到计数门限；
所述存储器1002，用于在所述处理器1001判断所述计数器的当前计数值达到未达到计数门限时，缓存接收到的终端在本回重传过程中重复发送的各个数据块；
所述处理器1001，还用于在判断所述计数器的当前计数值达到计数门限时，丢弃接收到的终端在本回重传过程中重复发送的各个所述数据块、以及已缓存的所述数据块。
当然，在所述处理器1001判断所述计数器的当前计数值达到计数门限时，对接收到的终端在本回重传过程中重复发送的各个所述数据块、以及已缓存的所述数据块不做任何处理。
在第三种可能的实现方式中，该装置还包括计时器，所述处理器1001，还用于在所述收发器1003接收到所述终端在首回重传过程中重复发送的各个数据块时，启动预设的计时器；并在将所述收发器1003接收到的终端在本回重传过程中重复发送的各个数据块与已缓存的所述数据块联合解码后，在解码失败时，判断所述计时器的当前计时值是否达到时间门限；
在判断所述计时器的当前计时值未达到时间门限时，将接收到的终端在本回重传过程中重复发送的各个数据块缓存在所述存储器1002中；并
在判断所述计时器的当前计时值达到时间门限时，丢弃接收到的终端在本回重传过程中重复发送的各个所述数据块、以及已缓存的所述数据块。
在第四种可能的实现方式中，所述处理器1001，还用于在第一次确定对 接收到的数据块解码失败后，所述收发器1003向终端发送指示消息时，启动预设的定时器；在将所述收发器1003接收到的终端在本回重传过程中重新发送的各个数据块与已缓存的所述数据块联合解码后，在解码失败时，判断所述计时器的当前计时值是否达到时间门限；
在判断所述计时器的当前计时值未达到时间门限时，将接收到的终端在本回重传过程中重复发送的各个数据块缓存在所述存储器1002中；并
在判断所述计时器的当前计时值达到时间门限时，丢弃接收到的终端在本回重传过程中重复发送的各个所述数据块、以及已缓存的所述数据块。
当然，在所述处理器1001判断所述计数器的当前计时值达到时间门限时，对接收到的终端在本回重传过程中重复发送的各个所述数据块、以及已缓存的所述数据块不做任何处理。
当然还可以将计时器与计数器联合起来实施，具体与上述类似，在此不再赘述。
以上图10所示的装置具体可以参照图3所示的装置实施例进行实施，这里不再赘述。
本发明实施例还一种重传数据的装置，该装置可以设置于终端侧，该装置包括：处理器1101，存储器1102，收发器1103。其中收发器1103，用于实现图4所示的发送单元402及接收单元401所实现的功能。
收发器1103，用于接收网络侧在确定对接收到的数据块解码失败时发送的指示消息，所述指示消息用于指示重传所述数据块；
处理器1101，用于对收发器1103接收到的指示消息进行处理。
收发器1103，还用于根据处理器1101处理后的指示消息在本回重传过程中重复发送所述数据块，其中，重传过程中重复发送所述数据块的次数小于正常发送所述数据块的次数。
利用本发明实施例提供的重传数据的装置，在重传数据块时，重传的次数小于正常发送数据块的次数，即，减少了重传数据块的次数，从而节省了网络传输资源，并且由于重传时为连续重复发送，且与现有技术相同，从而 还缩短了传输的时延。
处理器1101，还用于确定所述网络侧为所述终端分配的用于正常发送数据块的第一上行调度标识USF和用于重传数据块的第二USF；其中第一USF用于指示终端正常发送数据块所使用的上行资源，所述第二USF用于指示终端重传数据块所使用的上行资源；
所述收发器1103，具体用于在所述网络侧分配第二USF对应的上行资源上，根据所述指示消息在本回重传过程中重复发送所述数据块。
具体的，所述收发器1103，具体用于在所述网络侧分配的第一上行调度标识USF指示的上行资源上正常发送所述数据块，并在网络侧分配的第二USF指示的上行资源上，根据所述指示消息在本回重传过程中重复发送所述数据块。
在其中一种可能的实现方式中，所述收发器1103接收到的网络侧在确定对接收到的数据块解码失败时发送的指示消息中还携带重传时重复发送所述数据块的次数，根据所述指示消息中携带的重复发送所述数据块的次数，在本回重传过程中重复所述次数发送所述数据块；
在另一种可能的实现方式中，处理器1101，还用于预先确定每次重传时重复发送所述数据块的次数。
收发器1103，具体用于根据所述指示消息，在本回重传过程中重复预设次数发送所述数据块。
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，本发明可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本发明可采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质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。
本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。
显然，本领域的技术人员可以对本发明实施例进行各种改动和变型而不脱离本发明实施例的精神和范围。这样，倘若本发明实施例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 (20)

  1. 一种重传数据的装置，其特征在于，包括：
    处理单元，用于确定对接收到的数据块的解码情况；
    发送单元，用于在所述处理单元确定对接收到的数据块解码失败后，向终端发送指示消息，所述指示消息用于指示终端重传所述数据块；
    接收单元，用于接收所述终端根据指示消息在本回重传过程中重复发送的各个数据块，其中，重传过程中重复发送所述数据块次数小于所述终端正常发送所述数据块的次数；
    所述处理单元，还用于将所述接收单元接收到的所述终端在本回重传过程中重复发送的各个数据块与已缓存的所述数据块联合解码，所述已缓存的所述数据块包括接收到的所述终端正常发送的所述数据块，或者接收到的所述终端正常发送的所述数据块和接收到的所述终端已经重传的所述数据块。
  2. 如权利要求1所述的装置，其特征在于，所述处理单元还用于：
    为终端分配第一上行调度标识USF和第二USF，所述第一USF用于指示终端正常发送数据块所使用的上行资源，所述第二USF用于指示终端重传数据块所使用的上行资源；
    所述接收单元，具体用于在所述处理单元分配的第二USF指示的上行资源上，接收所述终端在本回重传过程中重复发送的各个数据块。
  3. 如权利要求1或2所述的装置，其特征在于，所述发送单元，具体用于在向所述终端发送的指示消息中携带重复发送所述数据块的次数；
    所述接收单元，具体用于接收所述终端根据所述指示消息中携带的重复发送所述数据块的次数，在本回重传过程中重复所述次数发送的各个数据块。
  4. 如权利要求1～3任一项所述的装置，其特征在于，所述装置还包括存储单元；
    所述处理单元，还用于：
    在所述接收单元接收到所述终端在首回重传过程中重复发送的各个数据 块时，启动预设的计数器；并
    在后续所述接收单元接收到所述终端在每回重传过程中重复发送的各个数据块时，将所述计数器加1；
    在将所述接收单元接收到的终端在本回重传过程中重复发送的各个数据块与已缓存的数据块联合解码后，在解码失败时，判断所述计数器的当前计数值是否达到计数门限；
    在判断所述计数器的当前计数值未达到计数门限时，将接收到的终端在本回重传过程中重复发送的各个数据块缓存在所述存储单元中；并
    在判断所述计数器的当前计数值达到计数门限时，丢弃接收到的终端在本回重传过程中重复发送的各个所述数据块、以及已缓存的所述数据块。
  5. 如权利要求1～3任一项所述的装置，其特征在于，所述装置还包括存储单元；
    所述处理单元，还用于：
    在第一次确定对接收到的数据块解码失败后，所述发送单元向所述终端发送指示消息时，启动预设的计数器；并
    在后续每次确定对所述接收单元接收到的数据块解码失败后，所述发送单元向终端发送指示消息时，将所述计数器加1；
    在将所述接收单元接收到的终端在本回重传过程中重复发送的各个数据块与已缓存的数据块联合解码后，在解码失败时，判断所述计数器的当前计数值是否达到计数门限；
    在判断所述计数器的当前计数值未达到计数门限时，将接收到的终端在本回重传过程中重复发送的各个数据块缓存在所述存储单元中；并
    在判断所述计数器的当前计数值达到计数门限时，丢弃接收到的终端在本回重传过程中重复发送的各个所述数据块、以及已缓存的所述数据块。
  6. 如权利要求1～3任一项所述的装置，其特征在于，所述装置还包括存储单元；
    所述处理单元，还用于：
    在所述接收单元接收到所述终端在首回重传过程中重复发送的各个数据块时，启动预设的计时器；并
    在将所述接收单元接收到的终端在本回重传过程中重复发送的各个数据块与已缓存的所述数据块联合解码后，在解码失败时，判断所述计时器的当前计时值是否达到时间门限；
    在判断所述计时器的当前计时值未达到时间门限时，将接收到的终端在本回重传过程中重复发送的各个数据块缓存在所述存储单元中；并
    在判断所述计时器的当前计时值达到时间门限时，丢弃接收到的终端在本回重传过程中重复发送的各个所述数据块、以及已缓存的所述数据块。
  7. 如权利要求1～3任一项所述的装置，其特征在于，所述装置还包括存储单元；
    所述处理单元，还用于：
    在第一次确定对接收到的数据块解码失败后，所述发送单元向终端发送指示消息时，启动预设的定时器；
    在将所述接收单元接收到的终端在本回重传过程中重新发送的各个数据块与已缓存的所述数据块联合解码后，在解码失败时，判断所述计时器的当前计时值是否达到时间门限；
    在判断所述计时器的当前计时值未达到时间门限时，将接收到的终端在本回重传过程中重复发送的各个数据块缓存在所述存储单元中；并
    在判断所述计时器的当前计时值达到时间门限时，丢弃接收到的终端在本回重传过程中重复发送的各个所述数据块、以及已缓存的所述数据块。
  8. 一种重传数据的装置，其特征在于，包括：
    接收单元，用于接收网络侧在确定对接收到的数据块解码失败时发送的指示消息，所述指示消息用于指示重传所述数据块；
    发送单元，用于根据指示消息在本回重传过程中重复发送所述数据块，其中，重传过程中重复发送所述数据块的次数小于正常发送所述数据块的次数。
  9. 如权利要求8所述的装置，其特征在于，所述发送单元，具体用于在所述网络侧分配的第一上行调度标识USF指示的上行资源上正常发送所述数据块，并在网络侧分配的第二USF指示的上行资源上，根据所述指示消息在本回重传过程中重复发送所述数据块。
  10. 如权利要求8或者9所述的装置，其特征在于，所述发送单元，具体用于：
    根据所述指示消息中携带的重复发送所述数据块的次数，在本回重传过程中重复所述次数发送所述数据块；或者
    根据所述指示消息，在本回重传过程中重复预设次数发送所述数据块。
  11. 一种重传数据的方法，其特征在于，包括：
    在确定对接收到的数据块解码失败后，向终端发送指示消息，所述指示消息用于指示终端重传所述数据块；
    接收所述终端根据所述指示消息在本回重传过程中重复发送的各个数据块，其中，重传过程中重复发送所述数据块的次数小于所述终端正常发送所述数据块的次数；
    将接收到的所述终端在本回重传过程中重复发送的各个数据块与已缓存的所述数据块联合解码，所述已缓存的所述数据块包括接收到的所述终端正常发送的所述数据块，或者包括接收到的所述终端正常发送的所述数据块和接收到的所述终端已经重传的所述数据块。
  12. 如权利要求11所述的方法，其特征在于，所述方法还包括：
    为终端分配第一上行调度标识USF和第二USF，所述第一USF用于指示终端正常发送数据块所使用的上行资源，所述第二USF用于指示终端重传数据块所使用的上行资源；
    接收所述终端在本回重传过程中重复发送的各个数据块，具体包括：
    在为终端分配的第二USF指示的上行资源上，接收所述终端在本回重传过程中重复发送的各个数据块。
  13. 如权利要求11或12所述的方法，其特征在于，所述指示消息中携带 有重复发送所述数据块的次数；
    接收所述终端根据所述指示消息在本回重传过程中重复发送的各个数据块，包括：
    接收所述终端根据所述指示消息中携带的重复发送所述数据块的次数，在本回重传过程中重复所述次数发送的各个数据块。
  14. 如权利要求11～13任一项所述的方法，其特征在于，所述方法还包括：
    在接收到所述终端在首回重传过程中重复发送的各个数据块时，启动预设的计数器；并
    在后续接收到所述终端在每回重传过程中重复发送的各个数据块时，将所述计数器加1；
    在将接收到的终端在本回重传过程中重复发送的各个数据块与已缓存的数据块联合解码后，在解码失败时，判断所述计数器的当前计数值是否达到计数门限，若是，缓存接收到的终端在本回重传过程中重复发送的各个数据块；若否，丢弃接收到的终端在本回重传过程中重复发送的各个所述数据块、以及已缓存的所述数据块。
  15. 如权利要求11～13任一项所述的方法，其特征在于，所述方法还包括：
    在第一次确定对接收到的数据块解码失败后，向终端发送指示消息时，启动预设的计数器；并
    在后续每次确定对接收到的数据块解码失败后，向终端发送指示消息时，将所述计数器加1；
    在将接收到的终端在本回重传过程中重复发送的各个数据块与已缓存的数据块联合解码后，在解码失败时，判断所述计数器的当前计数值是否达到计数门限，若否，缓存接收到的终端在本回重传过程中重复发送的各个数据块；若是，丢弃接收到的终端在本回重传过程中重复发送的各个所述数据块、以及已缓存的所述数据块。
  16. 如权利要求11～13任一项所述的方法，其特征在于，所述方法还包括：
    在接收到所述终端在首回重传过程中重复发送的各个数据块时，启动预 设的计时器；并
    在将接收到的终端在本回重传过程中重复发送的各个数据块与已缓存的所述数据块联合解码后，在解码失败时，判断所述计时器的当前计时值是否达到时间门限，若否，缓存接收到的终端在本回重传过程中重复发送的各个数据块；若是，丢弃接收到的终端在本回重传过程中重复发送的各个所述数据块、以及已缓存的所述数据块。
  17. 如权利要求11～13任一项所述的方法，其特征在于，所述方法还包括：
    在第一次确定对接收到的数据块解码失败后，向终端发送指示消息时，启动预设的定时器；
    在将接收到的终端在本回重传过程中重新发送的各个数据块与已缓存的所述数据块联合解码后，在解码失败时，判断所述计时器的当前计时值是否达到时间门限，若否，缓存接收到的终端在本回重传过程中重复发送的各个数据块；若是，丢弃接收到的终端在本回重传过程中重复发送的各个所述数据块、以及已缓存的所述数据块。
  18. 一种重传数据的方法，其特征在于，包括：
    接收网络侧在确定对接收到的数据块解码失败时发送的指示消息，所述指示消息用于指示重传所述数据块；
    根据所述指示消息在本回重传过程中重复发送所述数据块，其中，重传过程中重复发送所述数据块的次数小于正常发送所述数据块的次数。
  19. 如权利要求18所述的方法，其特征在于，所述方法还包括：
    确定所述网络侧为终端分配的第一上行调度标识USF和第二USF，其中第一USF用于指示终端正常发送数据块所使用的上行资源，所述第二USF用于指示终端重传数据块所使用的上行资源；
    根据所述指示消息在本回重传过程中重复发送所述数据块，包括：
    在所述网络侧分配的第二USF所指示的上行资源上，根据所述指示消息在本回重传过程中重复发送所述数据块。
  20. 如权利要求18或19所述的方法，其特征在于，根据所述指示消息在 本回重传过程中重复发送所述数据块，包括：
    根据所述指示消息中携带的重复发送所述数据块的次数，在本回重传过程中重复所述次数发送所述数据块；或者
    根据所述指示消息，在本回重传过程中重复预设次数发送所述数据块。
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