WO2017113174A1 - 数据传输方法、装置、系统和通信设备 - Google Patents

数据传输方法、装置、系统和通信设备 Download PDF

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Publication number
WO2017113174A1
WO2017113174A1 PCT/CN2015/099838 CN2015099838W WO2017113174A1 WO 2017113174 A1 WO2017113174 A1 WO 2017113174A1 CN 2015099838 W CN2015099838 W CN 2015099838W WO 2017113174 A1 WO2017113174 A1 WO 2017113174A1
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Prior art keywords
data
terminal
transmission
unicast
signaling
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PCT/CN2015/099838
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English (en)
French (fr)
Inventor
余庆祥
张庆利
鲁志兵
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海能达通信股份有限公司
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Priority to PCT/CN2015/099838 priority Critical patent/WO2017113174A1/zh
Publication of WO2017113174A1 publication Critical patent/WO2017113174A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18Automatic repetition systems, e.g. Van Duuren systems
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/02Details
    • H04L12/16Arrangements for providing special services to substations
    • H04L12/18Arrangements for providing special services to substations for broadcast or conference, e.g. multicast

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  • the present invention relates to the field of communications technologies, and in particular, to a data transmission method, apparatus, system, and communication device.
  • the multicast service is implemented through the physical downlink shared channel (PDSCH). Since the multicast service implemented through the physical downlink shared channel has no uplink ACK/NACK feedback mechanism, the multicast data transmission in the terminal cannot be ensured. Received successfully.
  • PDSCH physical downlink shared channel
  • the existing solution relies on the HARQ mechanism to feed back ACK/NACK, so that any terminal in the transmission of multicast data, if it does not successfully receive the currently transmitted multicast data, feeds back NACK to trigger HARQ retransmission.
  • a data transmission method includes:
  • the data is transmitted to the terminal by the unicast transmission.
  • the signaling according to the terminal and the preset condition are in progress.
  • the steps of triggering the unicast transmission of the data in the multicast transmission of the line include:
  • Triggering a unicast transmission of the data Triggering a unicast transmission of the data.
  • the step of transmitting the data to the terminal by unicast transmission comprises:
  • the data is unicastly transmitted to the terminal through the unicast channel.
  • the method further includes:
  • the data transmission performed by the terminal is back-off from the unicast transmission to the multicast transmission according to the unicast user link state.
  • the method further includes:
  • a data transmission method including:
  • the signaling is reported to the base station.
  • the step of triggering generation of corresponding signaling according to the receiving condition comprises:
  • a data transmission device comprising:
  • the signaling receiving module is configured to receive, during the multicast transmission process of the data, the signaling reported by the terminal, where the signaling carries the unsuccessful reception of the data in the multicast transmission fed back by the terminal;
  • the unicast triggering module is configured to trigger unicast transmission of the data in the multicast transmission performed according to the signaling and preset conditions reported by the terminal;
  • a unicast transmission module configured to transmit the data to the terminal by the unicast transmission.
  • the unicast trigger module includes:
  • a bandwidth acquisition unit configured to acquire remaining system bandwidth
  • condition determining unit configured to determine, according to the preset upper layer configuration and the remaining system bandwidth, whether the preset condition is met
  • a unicast transmission triggering unit configured to trigger unicast transmission of the data when the condition determining unit determines to be YES.
  • the unicast delivery module includes:
  • a channel establishing unit configured to establish a unicast channel with the terminal
  • a unicast transmission unit configured to unicast and transmit the data to the terminal through the unicast channel during the multicast transmission that is performed.
  • the apparatus further includes:
  • a status receiving module configured to receive a unicast user link status, where the unicast user link status is reported by the terminal that performs unicast transmission;
  • the first back-off module is configured to roll back data transmission performed by the terminal to the multicast transmission according to the unicast user link state.
  • a data transmission device comprising:
  • a detecting module configured to detect a receiving status of data received in the multicast transmission
  • a status processing module configured to generate a corresponding signaling according to the receiving status, where the signaling carries unsuccessful receiving information of the data in the multicast transmission;
  • the reporting module is configured to report the signaling to the base station.
  • the status processing module includes:
  • the frame number determining unit is configured to determine whether the data that is not successfully demodulated in the data currently received by the terminal in the multicast terminal reaches a preset number of frames, and if yes, notify the signaling generating unit;
  • the signaling generating unit is configured to generate, to the base station, feedback signaling that the data in the multicast transmission is unsuccessfully received.
  • a data transmission system includes a base station and a terminal that communicates with the base station, where
  • the terminal is configured to report the corresponding signaling when the non-successful reception of the data transmitted by the base station by using the multicast;
  • the base station is configured to receive signaling reported by the terminal in the multicast transmission of the data, and the terminal feeds back the unsuccessful reception of the data in the multicast transmission by using the signaling;
  • the data is transmitted to the terminal by the unicast transmission.
  • a communication device comprising at least one processor, at least one mobile communication radio frequency component, a memory and at least one communication bus, wherein the memory stores program code, and the processor is configured to call program code stored in the memory for execution The following operations:
  • the data is transmitted to the terminal by the unicast transmission.
  • a communication device comprising at least one processor, at least one mobile communication radio frequency component, a memory and at least one communication bus, wherein the memory stores program code, and the processor is configured to call program code stored in the memory for execution The following operations:
  • the signaling is reported to the base station.
  • any terminal in the multicast group feeds back the signaling when the data is not successfully received, and the signaling carries the multicast fed back by the terminal.
  • the unsuccessful reception of the data in the transmission corresponding to the base station will receive the terminal report Signaling, triggering unicast transmission of data in the multicast transmission according to the signaling and preset conditions, and transmitting the data to the terminal that has not successfully received the data through unicast transmission, so that the multicast group is not successfully received.
  • the terminal of the data can also receive the data, ensuring the reliability of data reception.
  • the NACK feedback is not continuously performed, and only one signaling report is performed, thereby ensuring the transmission speed and reliability of the multicast.
  • FIG. 1 is a flow chart of a data transmission method in an embodiment
  • FIG. 2 is a flowchart of a method for triggering unicast transmission of data in a multicast transmission performed according to signaling and preset conditions reported by the terminal in FIG. 1;
  • 3 is a flow chart of a method for transmitting data to a terminal by unicast transmission
  • Figure 5 is a flow chart of a data transmission method in another embodiment
  • FIG. 6 is a flow chart of a data transmission method in another embodiment
  • FIG. 7 is a flowchart of a method for triggering generation of corresponding signaling according to a reception status in FIG. 6;
  • Figure 8 is a schematic structural diagram of a data transmission device in an embodiment
  • FIG. 9 is a schematic structural diagram of a unicast trigger module in FIG. 8.
  • FIG. 10 is a schematic structural diagram of a unicast transmission module of FIG. 8;
  • FIG. 11 is a schematic structural diagram of a data transmission device in another embodiment
  • Figure 12 is a block diagram showing the structure of a data transmission device in another embodiment
  • Figure 13 is a block diagram showing the structure of a data transmission device in an implementation
  • Figure 14 is a schematic structural view of the condition processing module of Figure 13;
  • FIG. 15 is a schematic structural diagram of a communication device according to an embodiment of the present invention.
  • the terminal successfully receives the transmitted multicast data for the transmission of the multicast data, it relies on the HARQ mechanism to feed back the ACK, and if the multicast data is not successfully received, it immediately depends on the HARQ.
  • the mechanism reports a NACK, and the base station can trigger the HARQ retransmission after receiving the NACK.
  • the terminal reporting the NACK will continue to report the NACK. Therefore, for the multicast data transmission performed by the LTE cluster system, the addition of the HARQ mechanism ensures reliability. But continuous NACK reporting will be extremely negative for transmission. Bear.
  • a data transmission method is proposed to solve the technical problem that some terminals cannot successfully receive data during the data multicast process between cluster devices, and the reliability of data transmission is ensured, and the transmission is not burdened.
  • the method is as shown in FIG. 1, and includes:
  • Step 110 Receive signaling reported by the terminal in the multicast transmission process of the data, where the signaling carries the unsuccessful reception of data in the multicast transmission fed back by the terminal.
  • the cluster device includes the base station and the terminal.
  • the base station transmits the multicast data to the multiple terminals. If the terminal cannot successfully receive the data transmitted by the base station through the multicast during the transmission of the multicast data, the signaling is reported. At this time, the base station receives the signaling reported by the terminal, so as to obtain the unsuccessful reception feedback of the data performed by the terminal.
  • Step 130 Trigger unicast transmission of data in the performed multicast transmission according to the signaling reported by the terminal and the preset condition.
  • the preset condition is read, and according to the condition, when the current system supports multicast to unicast and has unicast capability, the unicast transmission of data is triggered.
  • the preset conditions include that the current system is configured with multicast to unicast and the remaining system bandwidth is higher than a set bandwidth limit.
  • Step 150 transmitting data to the terminal by unicast transmission.
  • a terminal that cannot successfully receive data in multicast transmits data to it through unicast transmission. That is to say, in the process of performing multicast transmission in the terminal included in the multicast group, the unicast transmission of data is performed on the terminal that cannot successfully receive the data, thereby improving the data transmission efficiency through multicasting. The reliability of data transmission is guaranteed.
  • step 130 includes:
  • step 131 the remaining system bandwidth is obtained.
  • the current remaining system bandwidth is evaluated and the remaining system bandwidth is obtained to learn the current communication capability based on the obtained remaining system bandwidth.
  • step 133 it is determined whether the preset condition is met according to the preset upper layer configuration and the remaining system bandwidth. If yes, step 135 is notified, and if no, no processing is performed.
  • the preset upper-layer configuration knows whether the multicast-to-unicast is currently supported. That is, whether the multicast-to-unicast configuration item is enabled in the upper-layer configuration, such as setting the enable group. Broadcasting the unicast configuration item indicates that the current data transmission is multicast-to-unicast.
  • step 135 a unicast transmission of data is triggered.
  • the step 150 includes:
  • Step 151 establishing a unicast channel with the terminal.
  • Step 153 In the multicast transmission that is performed, the data is unicast to the terminal through the unicast channel.
  • the base station directly sends signaling through the unicast channel to transmit data to the terminal, ensuring that the terminal can successfully receive the data.
  • the standard LTE process can be entered, and the AMC mechanism in the LTE process is identified to ensure that the transmitted MCS modulation and coding mode matches the current channel quality, thereby ensuring the data transmission. Reliability.
  • the method as described above further includes:
  • Step 210 Receive a unicast user link state, where the unicast user link state is reported by the terminal that performs unicast transmission.
  • the terminal During the unicast transmission, the terminal obtains the unicast user link status according to the strength of the received signal and reports it to the base station.
  • Step 230 The data transmission performed by the terminal is back-off from the unicast transmission to the multicast transmission according to the unicast user link state.
  • the base station determines whether the link state between the terminal and the terminal continues to improve according to the unicast user link status reported by the terminal, and if yes, triggers the state machine fallback mechanism to perform the current operation.
  • the data transmission is rolled back to the multicast transmission by unicast transmission.
  • the state machine fallback mechanism is a mechanism for converting from unicast transmission to multicast transmission in the base station.
  • the method as described above further includes:
  • Step 310 Acquire a duration corresponding to the data that the terminal has successfully received the multicast transmission.
  • the base station side will also determine whether the channel quality of the terminal that obtains the data by unicast transmission is improved according to the multicast transmission result of the data, that is, the AMC result, so as to trigger the state machine fallback mechanism to be converted to multicast in the case of improvement. Transmission, which in turn increases the efficiency of data transmission.
  • a terminal that obtains data by unicast transmission it listens to the unicast channel to receive the unicast transmission data, and also listens to the multicast channel to receive the multicast transmission data, only because the multicast channel quality is better. Poorly, the terminal cannot successfully receive data transmitted by the base station through multicast.
  • the terminal will gradually receive the data transmitted by the base station through the multicast.
  • the base station side can learn from the multicast transmission result of the data that the terminal receives the data transmitted by the multicast. duration.
  • Step 330 Determine whether the duration is higher than the preset time value. If yes, notify step 350. If no, return to step 150.
  • the terminal resumes its multicast transmission to successfully receive the data transmitted by the base station through the multicast, and the duration is higher than the preset time value, it may determine that the current multicast channel quality is improved, and the multicast transmission may be resumed to the terminal to improve Data transmission efficiency.
  • step 350 the data transmission of the terminal is backed up by the unicast transmission to the multicast transmission.
  • a data transmission method is also provided correspondingly, as shown in FIG. 6, the method includes:
  • Step 410 Detect the receiving status of the data in the received multicast transmission.
  • Step 430 Generate corresponding signaling according to the receiving status, where the signaling carries the unsuccessful receiving information of the data in the multicast transmission.
  • Step 450 reporting signaling to the base station.
  • the terminal implements the active reporting of unsuccessful reception of data in the multicast transmission.
  • the terminal is any terminal involved in the multicast process of the base station. That is to say, any terminal in the multicast group can perform feedback through the transmission of a signaling.
  • the private signaling can be sent through the uplink, and the uplink NACK feedback is not needed, so that the data obtained by the single transmission can be received, the transmission reliability is ensured, and the state machine back-off mechanism is applicable.
  • the step 430 includes:
  • step 431 it is determined whether the data that is not successfully demodulated in the data currently received by the terminal is up to the preset number of frames. If yes, the process proceeds to step 433. If not, no processing is performed.
  • Step 433 Generate signaling that feeds back to the base station that the data in the multicast transmission is unsuccessfully received.
  • the active reporting mechanism is added to the terminal, so that the terminal can actively request the base station to perform unicast transmission on the data according to the data receiving status of the current multicast transmission, thereby successfully receiving data.
  • a data transmission device is further provided. As shown in FIG. 8, the device includes a signaling receiving module 510, a unicast triggering module 530, and a unicast transmitting module 550, where:
  • the signaling receiving module 510 is configured to receive, during the multicast transmission process of the data, the signaling reported by the terminal, where the signaling carries the unsuccessful reception of the data in the multicast transmission fed back by the terminal.
  • the unicast triggering module 530 is configured to trigger unicast transmission of data in the performed multicast transmission according to the signaling reported by the terminal and the preset condition.
  • the unicast transmission module 550 is configured to transmit data to the terminal by using unicast transmission.
  • the unicast triggering module 530 includes a bandwidth acquiring unit 531, a condition determining unit 533, and a unicast transmission triggering unit 535, where:
  • the bandwidth obtaining unit 531 is configured to acquire the remaining system bandwidth.
  • the condition determining unit 533 is configured to determine, according to the preset upper layer configuration and the remaining system bandwidth, whether Meet the preset conditions.
  • the unicast transmission triggering unit 535 is configured to transmit the data unicast to the terminal through the unicast channel when the condition determining unit 533 determines YES.
  • the unicast transmission module 550 as described above includes a channel establishment unit 551 and a unicast transmission unit 553, where:
  • the channel establishing unit 551 is configured to establish a unicast channel with the terminal.
  • the unicast transmission unit 553 is configured to unicast and transmit data to the terminal through a unicast channel in the performed multicast transmission.
  • the apparatus as described above further includes a status receiving module 610 and a first back-off module 630, wherein
  • the status receiving module 610 is configured to receive a unicast user link status, where the unicast user link status is reported by the terminal performing unicast transmission.
  • the first back-off module 630 is configured to roll back data transmission performed by the terminal from the unicast transmission to the multicast transmission according to the unicast brain link status.
  • the apparatus further includes a time acquisition module 710, a determination module 730, and a second fallback module 750, where:
  • the time obtaining module 710 is configured to acquire a duration corresponding to the data that the terminal has successfully received the multicast transmission.
  • the determining module 730 is configured to determine whether the duration is higher than the preset time value. If yes, the second backoff module 730 is notified, and if not, the unicast transmission module 550 is notified to continue the unicast transmission.
  • the second backoff module 730 is configured to roll back the data transmission of the terminal from the unicast transmission to the multicast transmission.
  • a data transmission device is further provided, and the device includes a detection module 810, a status processing module 830, and a reporting module 850, wherein:
  • the detecting module 810 is configured to detect a receiving status of the data in the received multicast transmission.
  • the status processing module 830 is configured to generate corresponding signaling according to the receiving status, where the signaling carries the unsuccessful receiving information of the data in the multicast transmission.
  • the reporting module 850 is configured to report signaling to the base station.
  • the status processing module 830 includes a frame number determining unit 831 and a signaling generating unit 833, where:
  • the frame number determining unit 831 is configured to determine whether the data that is not successfully demodulated in the data currently received by the terminal in the terminal is up to a preset number of frames, and if yes, notify the signaling generating unit 833, if not, the Do any processing.
  • the signaling generating unit 833 is configured to generate, to the base station, feedback signaling that the data in the multicast transmission is unsuccessfully received.
  • a data transmission system a base station, and a terminal that communicates with the base station are further provided, wherein the terminal is configured to report the corresponding signaling for feedback when the data transmitted by the base station is not successfully received.
  • the base station packet is configured to receive signaling reported by the terminal in the multicast transmission of the data, and the terminal feeds back the unsuccessful reception of the data in the multicast transmission by using the signaling;
  • Data is transmitted to the terminal through unicast transmission.
  • FIG. 15 is a schematic structural diagram of another communication device according to an embodiment of the present invention.
  • the communication device 900 is a network side device, and may be a base station in actual use, including: at least one processor 901, such as a CPU, a baseband controller, and the like. At least one mobile communication radio frequency component 903, memory 904, at least one communication bus 902. Among them, the communication bus 902 is used to implement connection communication between these components.
  • the memory 904 may be a high speed RAM memory or a non-volatile memory such as at least one disk memory.
  • the memory 904 can also optionally be at least one storage device located remotely from the aforementioned processor 901.
  • a set of program codes is stored in the memory 904, and the processor 901 is configured to call program code stored in the memory for performing the following operations:
  • Data is transmitted to the terminal through unicast transmission.
  • the step of the processor 901 triggering unicast transmission of data in the performed multicast transmission according to the signaling and preset conditions reported by the terminal includes:
  • Trigger a unicast transmission of data Trigger a unicast transmission of data.
  • the step of the processor 901 transmitting the data to the terminal by using a unicast transmission includes:
  • data is unicast to the terminal through a unicast channel.
  • the processor 901 further performs the step of transmitting the data to the terminal by using a unicast transmission:
  • the unicast user link state is received, and the unicast user link state is reported by the terminal performing unicast transmission;
  • the data transmission performed by the terminal is back-off from the unicast transmission to the multicast transmission according to the unicast user link state.
  • the processor 901 further performs:
  • a communication device which may be a user terminal, such as a walkie-talkie, a mobile phone, etc., in actual use, including at least one processor, at least one mobile communication radio frequency component, a memory, and at least one communication bus, the memory
  • the program code is stored, and the processor is configured to call the program code stored in the memory to perform the following operations:
  • the signaling is actively reported to feed back to the base station the unsuccessful reception of data in the multicast transmission.
  • the step of the processor 901 performing the triggering generation of the corresponding signaling according to the receiving condition includes:
  • a person skilled in the art may understand that all or part of the steps of implementing the above embodiments may be completed by hardware, or may be instructed by a program to execute related hardware, and the program may be stored in a computer readable storage medium.
  • the storage medium mentioned may be a read only memory, a magnetic disk or an optical disk or the like.

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Abstract

本发明提供了一种数据传输方法,所述包括:在数据的组播传输过程中接收终端上报的信令,所述信令中携带有所述终端反馈的所述组播传输中数据的非成功接收;根据所述终端上报的信令和预置的条件在进行的组播传输中触发进行所述数据的单播传输;通过所述单播传输将所述数据向所述终端传送。此外,还提供了一种数据传输装置、系统和通信设备。该数据传输方法、装置、系统和通信设备能够保证组播的传输速率,并且保证了组播组中任一终端接收数据的可靠性。

Description

数据传输方法、装置、系统和通信设备 技术领域
本发明涉及通信技术领域,特别涉及一种数据传输方法、装置、系统和通信设备。
背景技术
随着移动通信技术的发展,一组终端请求相同数据的情况时有发生,由此所进行的数据传输也将是点对多点的传输,即通过组播的方式进行数据传输,以保证传输的高效性。
然而,CCSA中,组播业务是通过物理下行共享信道(PDSCH)实现的,由于通过物理下行共享信道实现的组播业务没有上行ACK/NACK反馈机制,因此并无法确保终端中组播数据传输的成功接收。
现有的解决方案是依靠HARQ机制反馈ACK/NACK,以使得组播数据的传输中任一终端如未成功接收当前传输的组播数据,则反馈NACK,以触发HARQ重传。
这一解决方案虽然保证了组播数据传输的可靠性,但是,存在着拖累整个组播传输速率的局限性。例如,若某一终端在一段时间内容一直处在差点,则该终端将会一直反馈NACK,从而拖累整个组播的传输速率。
发明内容
基于此,有必要提供一种数据传输方法,该方法能够保证组播的传输速率,并且保证了组播组中任一终端接收数据的可靠性。
另外,有必要提供一种数据传输装置、系统和通信设备,该装置能够保证组播的传输速率,并且保证了组播组中任一终端接收数据的可靠性。
为解决上述技术问题,将采用如下技术方案:
一种数据传输方法,包括:
在数据的组播传输过程中接收终端上报的信令,所述信令中携带有所述终端反馈的所述组播传输中数据的非成功接收;
根据所述终端上报的信令和预置的条件在进行的组播传输中触发进行所述数据的单播传输;
通过所述单播传输将所述数据向所述终端传送。
在其中一个实施例中,所述根据所述终端上报的信令和预置的条件在进 行的组播传输中触发进行所述数据的单播传输的步骤包括:
获取剩余系统带宽;
根据预置的上层配置和所述剩余系统带宽判断是否满足预置的条件,若为是,则
触发进行所述数据的单播传输。
在其中一个实施例中,所述通过单播传输将所述数据传送至所述终端的步骤包括:
建立与所述终端之间的单播信道;
在进行的组播传输中,通过所述单播信道向所述终端单播传输所述数据。
在其中一个实施例中,所述通过所述单播传输将所述数据向所述终端传送的步骤之后,所述方法还包括:
接收单播用户链路状态,所述单播用户链路状态是进行单播传输的所述终端上报的;
根据所述单播用户链路状态将所述终端进行的数据传输由单播传输回退至组播传输。
在其中一个实施例中,所述通过所述单播传输将所述数据传送至所述终端的步骤之后,所述方法还包括:
获取所述终端已成功接收所述组播传输的数据对应的持续时间;
判断所述持续时间是否高于预设时间值,若为是,则将所述终端的数据传输由单播传输回退至组播传输。
一种数据传输方法,包括;
检测接收组播传输中数据的接收状况;
根据所述接收状况触发生成相应的信令,所述信令中携带有所述组播传输中数据的非成功的接收信息;
向基站上报所述信令。
在其中一个实施例中,所述根据所述接收状况触发生成相应的信令的步骤包括:
判断所在终端当前接收组播传输的数据中未成功解调的数据是否达到预设帧数,若为是,则
生成向基站反馈组播传输中数据非成功接收的信令。
一种数据传输装置,包括:
信令接收模块,用于在数据的组播传输过程中接收终端上报的信令,所述信令中携带有终端反馈的所述组播传输中数据的非成功接收;
单播触发模块,用于根据所述终端上报的信令和预置的条件在进行的组播传输中触发进行所述数据的单播传输;
单播传送模块,用于通过所述单播传输将所述数据向所述终端传送。
在其中一个实施例中,所述单播触发模块包括:
带宽获取单元,用于获取剩余系统带宽;
条件判断单元,用于根据预置的上层配置和所述剩余系统带宽判断是否满足预置的条件;
单播传输触发单元,用于在所述条件判断单元判断为是时,触发进行所述数据的单播传输。
在其中一个实施例中,所述单播传送模块包括:
信道建立单元,用于建立与所述终端之间的单播信道;
单播传输单元,用于在进行的组播传输中,通过所述单播信道向至所述终端单播传输所述数据。
在其中一个实施例中,所述装置还包括:
状态接收模块,用于接收单播用户链路状态,所述单播用户链路状态是进行单播传输的所述终端上报的;
第一回退模块,用于根据所述单播用户链路状态将所述终端进行的数据传输由单播传输回退至组播传输。
一种数据传输装置,包括:
检测模块,用于检测接收组播传输中数据的接收状况;
状况处理模块,用于根据所述接收状况触发生成相应的信令,所述信令中携带有所述组播传输中数据的非成功接收信息;
上报模块,用于向基站上报所述信令。
在其中一个实施例中,所述状况处理模块包括:
帧数判断单元,用于判断所在终端当前接收组播传输的数据中未成功解调的数据是否达到预设帧数,若为是,则通知信令生成单元;
所述信令生成单元用于生成向基站反馈组播传输中数据非成功接收的信令。
一种数据传输系统,包括基站以及与所述基站通信的终端,其中,
所述终端用于在非成功接收基站通过组播传输的数据时上报相应信令进行反馈;
所述基站用于在数据的组播传输中接收终端上报的信令,终端通过所述信令反馈所述组播传输中数据的非成功接收;
根据所述终端上报的信令和预置的条件在进行的组播传输中触发进行所述数据的单播传输;
通过所述单播传输将所述数据传送至所述终端。
一种通信设备,包括至少一个处理器、至少一个移动通信射频组件、存储器和至少一个通信总线,所述存储器中存储程序代码,且处理器用于调用所述存储器中存储的程序代码,用于执行以下操作:
在数据的组播传输过程中接收终端上报的信令,所述信令携带有所述终端反馈的所述组播传输中数据的非成功接收;
根据所述终端上报的信令和预置的条件在进行的组播传输中触发进行所述数据的单播传输;
通过所述单播传输将所述数据向所述终端传送。
一种通信设备,包括至少一个处理器、至少一个移动通信射频组件、存储器和至少一个通信总线,所述存储器中存储程序代码,且处理器用于调用所述存储器中存储的程序代码,用于执行以下操作:
检测接收组播传输中数据的接收状况;
根据所述接收状况触发生成相应的信令,所述信令中携带有所述组播传输中数据的非成功接收信息;
向基站上报所述信令。
由上述技术方案可知,在数据的组播传输过程中,组播组中的任一终端在未成功接收数据时,将上报信令对此进行反馈,此信令中携带有终端反馈的组播传输中数据的非成功接收,与之相对应的,基站将接收到该终端上报 的信令,根据信令和预置的条件在进行的组播传输中触发进行数据的单播传输,通过单播传输将数据向未成功接收数据的终端传送,使得组播组中未成功接收数据的终端也能够接收到数据,保证了数据接收的可靠性。并且对于暂时未成功接收数据的组端而言,并不会持续进行NACK的反馈,而仅进行一次信令上报,因此保证组播的传输速度和可靠性。
附图说明
图1是一个实施例中数据传输方法的流程图;
图2是图1中根据终端上报的信令和预置的条件在进行的组播传输中触发进行数据的单播传输的方法流程图;
图3是图1是通过单播传输将数据传输至终端的方法流程图;
图4是另一个实施例中数据传输方法的流程图;
图5是另一个实施例中数据传输方法的流程图;
图6是另一个实施例中数据传输方法的流程图;
图7是图6中根据接收状况触发生成相应的信令的方法流程图;
图8是一个实施例中数据传输装置的结构示意图;
图9是图8中单播触发模块的结构示意图;
图10是图8中单播传送模块的结构示意图;
图11是另一个实施例中数据传输装置的结构示意图;
图12是另一个实施例中数据传输装置的结构示意图;
图13是一个实施觎中数据传输装置的结构示意图;
图14是图13中状况处理模块的结构示意图;
图15是本发明实施例中通信设备的结构示意图。
具体实施方式
体现本发明特征与优点的典型实施方式将在以下的说明中详细叙述。应理解的是本发明能够在不同的实施方式上具有各种的变化,其皆不脱离本发明的范围,且其中的说明及图示在本质上是当作说明之用,而非用以限制本发明。
如前所述的,在LTE集群系统中,对于组播数据的传输,如果终端成功接收传输的组播数据,则依靠HARQ机制反馈ACK,如果未成功接收传输的组播数据,则立刻依靠HARQ机制上报NACK,基站在收到该NACK之后即可触发HARQ重传。
如未接收到重传的组播数据,此上报NACK的终端将会持续进行NACK的上报,因此,这对于LTE集群系统进行的组播数据传输而言,HARQ机制的加入虽保证了可靠性,但是持续的NACK上报将对传输造成极大的负 担。
鉴于此,特提出了一种数据传输方法,以解决集群设备之间数据组播过程中某些终端无法成功接收数据的技术问题,保证数据传输的可靠性,且不会对传输造成负担。
在一个实施例中,具体的,该方法如图1所示,包括:
步骤110,在数据的组播传输过程中接收终端上报的信令,该信令中携带有终端反馈的组播传输中数据的非成功接收。
集群设备包括了基站和终端,在组播业务中基站向多个终端传输组播数据,在此组播数据的传输过程中若终端无法成功接收基站通过组播传输的数据,则进行信令上报,此时,基站相应接收到该终端上报的信令,以获知终端所进行的数据非成功接收反馈。
步骤130,根据终端上报的信令和预置的条件在进行的组播传输中触发进行数据的单播传输。
读取预置的条件,根据该条件在确认当前系统中支持组播转单播且具备单播能力时,触发进行数据的单播传输。
其中,预置的条件包括当前系统配置了组播转单播且剩余系统带宽高于一设定的带宽限值。
步骤150,通过单播传输将数据向终端传送。
针对组播中无法成功接收数据的终端,通过单播传输向其传送数据。也就是说,在仍然在组播组包含的终端中进行组播传输的过程中,对无法成功接收数据的终端进行数据的单播传输,由此在通过组播提高数据传输效率的同时,也保证了数据传输的可靠性。
进一步的,在本实施例中,如图2所示,步骤130包括:
步骤131,获取剩余系统带宽。
对当前的剩余系统带宽进行评估并获取剩余系统带宽,以根据获取得到的剩余系统带宽获知当前的通信能力。
步骤133,根据预置的上层配置和剩余系统带宽判断是否满足预置的条件,若为是,则通知步骤135,若为否,则不做任何处理。
读取预置的上层配置,由预置的上层配置获知当前是否支持组播转单播,即上层配置中是否设定了使能组播转单播的配置项,如设定了使能组播转单播的配置项,则说明当前是的数据传输是支持组播转单播的。
并且判断评估所得到的剩余系统带宽是否高于预置的条件中的带宽限值,若为是,则说明系统当前具备单播能力,可进行数据的单播传输。
步骤135,触发进行数据的单播传输。
进一步的,在本实施例中,如图3所示,该步骤150包括:
步骤151,建立与终端之间的单播信道。
步骤153,在进行的组播传输中,通过单播信道将向终端单播传输数据。
基站直接通过单播信道进行信令的下发,以将数据传输至终端中,确保了终端可成功接收该数据。
在此过程中,一旦转为单播传输,便进入标准LTE流程即可,通过标识LTE流程中的AMC机制来保证传输的MCS调制编码方式与当前的信道质量相匹配,进而保证了该数据传输的可靠性。
在一个实施例中,如图4所示,该步骤150之后,如上所述的方法还包括:
步骤210,接收单播用户链路状态,该单播用户链路状态是进行单播传输的终端上报的。
进行单播传输的过程中,终端将根据接收到的信号强弱得到单播用户链路状态,并上报至基站。
步骤230,根据单播用户链路状态将终端进行的数据传输由单播传输回退至组播传输。
基站将根据终端上报的单播用户链路状态判断其与终端之间的的链接状态是否在一预设时间范围内持续好转,若为是,则触发状态机回退机制,以将当前所进行的数据传输由单播传输回退至组播传输。
其中,该状态机回退机制是基站中由单播传输转换为组播传输的机制。
在另一个实施例中,如图5所示,该步骤150之后,如上所述的方法还包括:
步骤310,获取终端已成功接收组播传输的数据对应的持续时间。
基站侧也将根据数据的组播传输结果,即AMC结果判定当前通过单播传输得到数据的终端的信道质量是否好转,以便于在好转的情况下触发其状态机回退机制,转为组播传输,进而提高数据传输的效率。
通过单播传输得到数据的终端中,其即对单播信道进行侦听以接收单播传输的数据,也对组播信道进行侦听以接收组播传输的数据,只是由于组播信道质量较差而使得终端无法成功接收到基站通过组播传输的数据。
而随着组播信道质量的好转,终端将会逐渐成功接收得到基站通过组播传输的数据,与之相对应的,基站侧可由数据的组播传输结果获知该终端接收组播传输的数据的持续时间。
步骤330,判断持续时间是否高于预设时间值,若为是,则通知步骤350,若为否,则返回步骤150。
若终端恢复其组播传输,以成功接收基站通过组播传输的数据,并持续时间高于预设时间值,则可判定当前组播信道质量好转,可对该终端恢复组播传输,以提高数据的传输效率。
步骤350,将终端的数据传输由单播传输回退至组播传输。
在一个实施例中,还相应地提供了一种数据传输方法,如图6所示,该方法包括:
步骤410,检测接收组播传输中数据的接收状况。
步骤430,根据接收状况触发生成相应的信令,该信令中携带有组播传输中数据的非成功接收信息。
步骤450,向基站上报信令。
终端中通过此过程实现了组播传输中数据非成功接收的主动上报。需要说明的是,该终端是基站的组播过程中涉及的任一终端。也就是说,组播组中的任一终端均可进行通过一信令的发送进行反馈。例如,可通过上行发送私有信令,而并不需要进行上行NACK反馈,进而即可接收到通过单传输所得到的数据,保证了传输可靠性,且由于具备了状态机回退机制而可适用于各种信道状态,适应性强。
进一步的,在本实施例中,如图7所示,该步骤430包括:
步骤431,判断所在终端当前接收组播传输的数据中未成功解调的数据是否达到预设帧数,若为是,则进入步骤433,若为否,则不做任何处理。
步骤433,生成向基站反馈组播传输中数据非成功接收的信令。
通过上述过程在终端加入主动上报机制,以使得终端可根据当前组播传输的数据接收状况主动请求基站对其进行数据的单播传输,进而得以成功接收数据。
在一个实施例中,还相应提供了一种数据传输装置,如图8所示,该装置包括信令接收模块510、单播触发模块530和单播传送模块550,其中:
信令接收模块510,用于在数据的组播传输过程中接收终端上报的信令,该信令中携带有终端反馈的组播传输中数据的非成功接收。
单播触发模块530,用于根据终端上报的信令和预置的条件在进行的组播传输中触发进行数据的单播传输。
单播传输模块550,用于通过单播传输将数据向终端传送。
进一步的,在本实施例中,如图9所示,该单播触发模块530包括带宽获取单元531、条件判断单元533和单播传输触发单元535,其中:
带宽获取单元531,用于获取剩余系统带宽。
条件判断单元533,用于根据预置的上层配置和剩余系统带宽判断是否 满足预置的条件。
单播传输触发单元535,用于在条件判断单元533判断为是时,通过单播信道将数据单播传输至终端。
在一个实施例中,如图10所示,如上所述的单播传送模块550包括信道建立单元551和单播传输单元553,其中:
信道建立单元551,用于建立与终端之间的单播信道。
单播传输单元553,用于在进行的组播传输中,通过单播信道向终端单播传输数据。
在一个实施例中,如图11所示,如上所述的装置还包括状态接收模块610和第一回退模块630,其中
状态接收模块610,用于接收单播用户链路状态,该单播用户链路状态是进行单播传输的终端上报的。
第一回退模块630,用于根据单播脑筋链路状态将终端进行的数据传输由单播传输回退至组播传输。
在另一个实施例中,如图12所示,该装置还包括时间获取模块710、判断模块730和第二回退模块750,其中:
时间获取模块710,用于获取终端已成功接收组播传输的数据对应的持续时间。
判断模块730,用于判断持续时间是否高于预设时间值,若为是,则通知第二回退模块730,若为否,则通知单播传输模块550继续单播传输。
第二回退模块730用于将终端的数据传输由单播传输回退至组播传输。
在一个实施例中,如图13所示,还相应提供了一种数据传输装置,该装置包括检测模块810、状况处理模块830和上报模块850,其中:
检测模块810,用于检测接收组播传输中数据的接收状况。
状况处理模块830,用于根据接收状况触发生成相应的信令,该信令中携带有组播传输中数据的非成功接收信息。
上报模块850,用于向基站上报信令。
进一步的,在本实施例中,如图14所示,该状况处理模块830包括帧数判断单元831和信令生成单元833,其中:
帧数判断单元831,用于判断所在终端当前接收组播传输的数据中未成功解调的数据是否达到预设帧数,若为是,则通知信令生成单元833,若为否,则不做任何处理。
信令生成单元833,用于生成向基站反馈组播传输中数据非成功接收的信令。
在一个实施例中,还相应地提供了一种数据传输系统,基站以及与基站通信的终端,其中,该终端用于在非成功接收基站通过组播传输的数据时上报相应信令进行反馈。
基站包用于在数据的组播传输中接收终端上报的信令,终端通过信令反馈组播传输中数据的非成功接收;
根据终端上报的信令和预置的条件在进行的组播传输中触发进行数据的单播传输;
通过单播传输将数据传送至终端。
图15是本发明实施例中的另一种通信设备的结构示意图,通信设备900为网络侧设备,在实际使用中可以为基站,包括:至少一个处理器901,例如CPU,基带控制器等,至少一个移动通信射频组件903,存储器904,至少一个通信总线902。其中,通信总线902用于实现这些组件之间的连接通信。存储器904可以是高速RAM存储器,也可以是非易失的存储器(non-volatile memory),例如至少一个磁盘存储器。存储器904可选的还可以是至少一个位于远离前述处理器901的存储装置。存储器904中存储一组程序代码,且处理器901用于调用存储器中存储的程序代码,用于执行以下操作:
数据的组播传输中接收终端上报的信令,终端通过信令反馈组播传输中数据的非成功接收;
根据终端上报的信令和预置的条件在进行的组播传输中触发进行数据的单播传输;
通过单播传输将数据传送至终端。
可选的,处理器901根据终端上报的信令和预置的条件在进行的组播传输中触发进行数据的单播传输的步骤包括:
获取剩余系统带宽;
根据预置的上层配置和剩余系统带宽判断是否满足预置的条件,若为是,则
触发进行数据的单播传输。
可选的,处理器901通过单播传输将数据传送至终端的步骤包括:
建立与终端之间的单播信道;
在进行的组播传输中,通过单播信道向终端单播传输数据。
可选的,处理器901通过单播传输将数据向终端传送的步骤之后还执行:
接收单播用户链路状态,单播用户链路状态是进行单播传输的终端上报的;
根据单播用户链路状态将终端进行的数据传输由单播传输回退至组播传输。
可选的,处理器901通过单播传输将数据传送至终端的步骤之后还执行:
获取终端已成功接收组播传输的数据对应的持续时间;
判断持续时间是否高于预设时间值,若为是,则将终端的数据传输由单播传输回退至组播传输。
此外,还提供了一种通信设备,该通信设备在实际使用中可以为用户终端,如对讲机、手机等,其包括至少一个处理器、至少一个移动通信射频组件、存储器和至少一个通信总线,存储器中存储程序代码,且处理器用于调用所述存储器中存储的程序代码,用于执行以下操作:
检测接收组播传输中数据的接收状况;
根据接收状况触发生成相应的信令;
主动上报信令,以向基站反馈组播传输中数据的非成功接收。
可选的,处理器901执行根据接收状况触发生成相应的信令的步骤包括:
判断所在终端当前接收组播传输的数据中未成功解调的数据是否达到预设帧数,若为是,则
生成向基站反馈组播传输中数据非成功接收的信令。
本领域普通技术人员可以理解实现上述实施例的全部或部分步骤可以通过硬件来完成,也可以通过程序来指令相关的硬件完成,所述的程序可以存储于一种计算机可读存储介质中,上述提到的存储介质可以是只读存储器,磁盘或光盘等。
虽然已参照几个典型实施方式描述了本发明,但应当理解,所用的术语是说明和示例性、而非限制性的术语。由于本发明能够以多种形式具体实施而不脱离发明的精神或实质,所以应当理解,上述实施方式不限于任何前述的细节,而应在随附权利要求所限定的精神和范围内广泛地解释,因此落入权利要求或其等效范围内的全部变化和改型都应为随附权利要求所涵盖。

Claims (16)

  1. 一种数据传输方法,其特征在于,包括:
    在数据的组播传输过程中接收终端上报的信令,所述信令中携带有所述终端反馈的所述组播传输中数据的非成功接收;
    根据所述终端上报的信令和预置的条件在进行的组播传输中触发进行所述数据的单播传输;
    通过所述单播传输将所述数据向所述终端传送。
  2. 根据权利要求1所述的方法,其特征在于,所述根据所述终端上报的信令和预置的条件在进行的组播传输中触发进行所述数据的单播传输的步骤包括:
    获取剩余系统带宽;
    根据预置的上层配置和所述剩余系统带宽判断是否满足预置的条件,若为是,则
    触发进行所述数据的单播传输。
  3. 根据权利要求1所述的方法,其特征在于,所述通过单播传输将所述数据向所述终端传送的步骤包括:
    建立与所述终端之间的单播信道;
    在进行的组播传输中,通过所述单播信道向所述终端单播传输所述数据。
  4. 根据权利要求2所述的方法,其特征在于,所述通过所述单播传输将所述数据向所述终端传送的步骤之后,所述方法还包括:
    接收单播用户链路状态,所述单播用户链路状态是进行单播传输的所述终端上报的;
    根据所述单播用户链路状态将所述终端进行的数据传输由单播传输回退至组播传输。
  5. 根据权利要求2所述的方法,其特征在于,所述通过所述单播传输将所述数据传送至所述终端的步骤之后,所述方法还包括:
    获取所述终端已成功接收所述组播传输的数据对应的持续时间;
    判断所述持续时间是否高于预设时间值,若为是,则将所述终端的数据传输由单播传输回退至组播传输。
  6. 一种数据传输方法,其特征在于,包括;
    检测接收组播传输中数据的接收状况;
    根据所述接收状况触发生成相应的信令,所述信令中携带有所述组播传输中数据的非成功接收信息;
    向基站上报所述信令。
  7. 根据权利要求6所述的方法,其特征在于,所述根据所述接收状况触发生成相应的信令的步骤包括:
    判断所在终端当前接收组播传输的数据中未成功解调的数据是否达到预设帧数,若为是,则
    生成向基站反馈组播传输中数据非成功接收的信令。
  8. 一种数据传输装置,其特征在于,包括:
    信令接收模块,用于在数据的组播传输过程中接收终端上报的信令,所述信令中携带有终端反馈的所述组播传输中数据的非成功接收;
    单播触发模块,用于根据所述终端上报的信令和预置的条件在进行的组播传输中触发进行所述数据的单播传输;
    单播传送模块,用于通过所述单播传输将所述数据向所述终端传送。
  9. 根据权利要求8所述的装置,其特征在于,所述单播触发模块包括:
    带宽获取单元,用于获取剩余系统带宽;
    条件判断单元,用于根据预置的上层配置和所述剩余系统带宽判断是否满足预置的条件;
    单播传输触发单元,用于在所述条件判断单元判断为是时,触发进行所述数据的单播传输。
  10. 根据权利要求8所述的装置,其特征在于,所述单播传送模块包括:
    信道建立单元,用于建立与所述终端之间的单播信道;
    单播传输单元,用于在进行的组播传输中,通过所述单播信道向所述终端单播传输所述数据。
  11. 根据权利要求9所述的装置,其特征在于,所述装置还包括:
    状态接收模块,用于接收单播用户链路状态,所述单播用户链路状态是进行单播传输的所述终端上报的;
    第一回退模块,用于根据所述单播用户链路状态将所述终端进行的数据传输由单播传输回退至组播传输。
  12. 一种数据传输装置,其特征在于,包括:
    检测模块,用于检测接收组播传输中数据的接收状况;
    状况处理模块,用于根据所述接收状况触发生成相应的信令,所述信令中携带有所述组播传输中数据的非成功接收信息;
    上报模块,用于向基站上报所述信令。
  13. 根据权利要求12所述的装置,其特征在于,所述状况处理模块包括:
    帧数判断单元,用于判断所在终端当前接收组播传输的数据中未成功解调的数据是否达到预设帧数,若为是,则通知信令生成单元;
    所述信令生成单元用于生成向基站反馈组播传输中数据非成功接收的信令。
  14. 一种数据传输系统,其特征在于,包括基站以及与所述基站通信的终端,其中,
    所述终端用于在非成功接收基站通过组播传输的数据时上报相应信令进行反馈;
    所述基站用于在数据的组播传输中接收终端上报的信令,终端通过所述信令反馈所述组播传输中数据的非成功接收;根据所述终端上报的信令和预置的条件在进行的组播传输中触发进行所述数据的单播传输;通过所述单播传输将所述数据传送至所述终端。
  15. 一种通信设备,其特征在于,包括至少一个处理器、至少一个移动通信射频组件、存储器和至少一个通信总线,所述存储器中存储程序代码,且处理器用于调用所述存储器中存储的程序代码,用于执行以下操作:
    在数据的组播传输过程中接收终端上报的信令,所述信令携带有所述终端反馈的所述组播传输中数据的非成功接收;
    根据所述终端上报的信令和预置的条件在进行的组播传输中触发进行所述数据的单播传输;
    通过所述单播传输将所述数据向所述终端传送。
  16. 一种通信设备,其特征在于,包括至少一个处理器、至少一个移动通信射频组件、存储器和至少一个通信总线,所述存储器中存储程序代码, 且处理器用于调用所述存储器中存储的程序代码,用于执行以下操作:
    检测接收组播传输中数据的接收状况;
    根据所述接收状况触发生成相应的信令,所述信令中携带有所述组播传输中数据的非成功接收信息;
    向基站上报所述信令。
PCT/CN2015/099838 2015-12-30 2015-12-30 数据传输方法、装置、系统和通信设备 WO2017113174A1 (zh)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1677971A (zh) * 2004-03-29 2005-10-05 华为技术有限公司 实现多媒体广播/组播服务业务激活的方法
CN1933385A (zh) * 2006-09-30 2007-03-21 中兴通讯股份有限公司 无线局域网ip组播帧传输速率动态自调整的实现方法
EP1936876A1 (en) * 2006-12-18 2008-06-25 Nokia Siemens Networks Gmbh & Co. Kg Method and system for ensuring data exchange between a server system and a client system
US20080201752A1 (en) * 2007-02-16 2008-08-21 At&T Knowledge Ventures, L.P. Multicast data packet recovery system
CN102882795A (zh) * 2012-09-29 2013-01-16 福建星网锐捷网络有限公司 一种无线网络中的ip组播报文下发的方法和设备

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1677971A (zh) * 2004-03-29 2005-10-05 华为技术有限公司 实现多媒体广播/组播服务业务激活的方法
CN1933385A (zh) * 2006-09-30 2007-03-21 中兴通讯股份有限公司 无线局域网ip组播帧传输速率动态自调整的实现方法
EP1936876A1 (en) * 2006-12-18 2008-06-25 Nokia Siemens Networks Gmbh & Co. Kg Method and system for ensuring data exchange between a server system and a client system
US20080201752A1 (en) * 2007-02-16 2008-08-21 At&T Knowledge Ventures, L.P. Multicast data packet recovery system
CN102882795A (zh) * 2012-09-29 2013-01-16 福建星网锐捷网络有限公司 一种无线网络中的ip组播报文下发的方法和设备

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