WO2017107668A1 - Data reverse transmission method and device - Google Patents

Data reverse transmission method and device Download PDF

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Publication number
WO2017107668A1
WO2017107668A1 PCT/CN2016/103997 CN2016103997W WO2017107668A1 WO 2017107668 A1 WO2017107668 A1 WO 2017107668A1 CN 2016103997 W CN2016103997 W CN 2016103997W WO 2017107668 A1 WO2017107668 A1 WO 2017107668A1
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WIPO (PCT)
Prior art keywords
side cell
data
gtp
source
packet
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PCT/CN2016/103997
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French (fr)
Chinese (zh)
Inventor
赵海鹏
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中兴通讯股份有限公司
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Publication of WO2017107668A1 publication Critical patent/WO2017107668A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/04—Error control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • H04W36/0033—Control or signalling for completing the hand-off for data sessions of end-to-end connection with transfer of context information
    • 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
    • H04L1/1607—Details of the supervisory signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1809—Selective-repeat protocols

Definitions

  • the present disclosure relates to the field of wireless communications, for example, to a data back propagation method and apparatus.
  • the UE In the process of the inter-station or the inter-board handover, the UE needs to forward the data packet of the source-side cell to the target-side cell.
  • the data packet of the source side cell may be back-transmitted to the target side cell, but the target side cell does not feed back information to the source side cell, but passively receives the data packet of the source side cell back-transmission, so
  • the whole process of back-transmission data is unreliable transmission, that is, if packet loss occurs on the transmission link, the reliability of the data cannot be guaranteed.
  • the TCP Transmission Control Protocol
  • the TCP Transmission Control Protocol
  • the present disclosure provides a data back-transmission method and device, which can ensure the reliability of data back-transmission and avoid packet loss, thereby enhancing the user experience.
  • an embodiment of the present disclosure provides a data back propagation method, which is applied to a target side cell in data back propagation, where the method includes:
  • GPRS General Packet Radio Service
  • GTP GPRS Tunnelling Protocol
  • the first time point of receiving the first discontinuous GTP packet is recorded, and the time interval between the discontinuous GTP packet received and the first time point is exceeded.
  • the threshold is set, a back-propagation status report is sent to the source-side cell, where the back-propagation status report includes the lost GTP message information.
  • the method before the back-transmitting data sent by the receiving source-side cell, the method further includes:
  • the switch response is returned to the source side cell, and packet loss detection is enabled.
  • the method further includes:
  • the packet loss detection is stopped.
  • the back-end status report is sent to the source-side cell, where the back-propagation status report includes There is missing GTP message information.
  • the preset threshold ranges from 2 to 5 ms.
  • the embodiment of the present disclosure further provides a data back-transmission device, which is applied to a target side cell in data back-transmission, and the device includes:
  • a receiving module configured to receive back-transmission data sent by the source-side cell
  • the detecting module is configured to detect whether the received GTP message of the GRPS tunneling protocol user plane is continuous;
  • the processing module is configured to: if the GTP packet is not consecutive, record the first time point of receiving the first discontinuous GTP packet, and the discontinuous GTP packet received thereafter and the first time point When the time interval exceeds the preset threshold, the back-end status report is sent to the source-side cell, where the back-propagation status report includes the lost GTP message information.
  • the receiving module is further configured to receive a handover request sent by the source side cell;
  • the processing module is further configured to return a handover response to the source side cell, and enable packet loss detection.
  • the receiving module is further configured to receive a data transmission end message sent by the source side cell;
  • the detecting module is further configured to detect whether the GTP packet received at the current time point is continuous.
  • the processing module is further configured to stop the packet loss detection when the GTP packet received at the current time point is continuous; and send the back propagation status report to the source cell when the GTP packet received at the current time point is not continuous.
  • the backhaul status report includes missing GTP message information.
  • the embodiment of the present disclosure further provides a data back propagation method, which is applied to a source side cell in data back propagation, and the method includes:
  • the back-propagation status report includes the lost GRPS tunneling protocol user plane GTP message information
  • the device detects whether the corresponding terminal information is deleted. If the corresponding terminal information is not deleted, the lost GTP packet is retransmitted according to the lost GTP packet information.
  • the method before the sending the back-transmission data to the target-side cell, the method further includes:
  • the method further includes:
  • the transmission of the backhaul data is stopped, and the data transmission end message is sent to the target side cell.
  • the embodiment of the present disclosure further provides a data back-transmission device, which is applied to a source-side cell in data back-transmission, and the device includes:
  • a sending module configured to send back data to the target side cell
  • a receiving module configured to receive a back-propagation status report returned by the target-side cell, where the back-propagation status report includes a lost GRPS tunneling protocol user plane GTP message information;
  • the processing module is configured to detect whether the corresponding terminal information is deleted. If not, the lost GTP packet is resent according to the lost GTP packet information.
  • the receiving module is further configured to receive a measurement report sent by the terminal;
  • the sending module is further configured to send a handover request to the target side cell
  • the receiving module is further configured to receive a handover response returned by the target side cell.
  • the receiving module is further configured to receive a reconfiguration complete message reported by the terminal;
  • the sending module is further configured to stop sending back data and send a data transmission end message to the target side cell.
  • the present disclosure also provides a non-transitory storage medium storing computer executable instructions arranged to perform the data backpropagation method described above.
  • the present disclosure also provides a computer program product comprising a computer program stored on a non-transitory computer readable storage medium, the computer program comprising program instructions, when the program instructions are executed by a computer, The computer is caused to perform the above-described data back propagation method.
  • the present disclosure also provides an electronic device comprising at least one processor and a memory communicatively coupled to the at least one processor, the memory for storing instructions executable by the at least one processor, the instructions being The at least one processor, when executed, causes the at least one processor to perform the data backpropagation method described above.
  • the data back-propagation method and apparatus of the present disclosure can ensure the reliability of data back-transmission, avoid packet loss, and thereby enhance the user experience.
  • FIG. 1 is a schematic flow chart of a data back propagation method according to an embodiment of the present disclosure
  • FIG. 2 is a structural block diagram of a data back-transmission apparatus according to an embodiment of the present disclosure
  • FIG. 3 is a schematic flowchart of a data back-propagation method according to an embodiment of the present disclosure
  • FIG. 4 is a structural block diagram of a data back-transmission apparatus according to an embodiment of the present disclosure.
  • FIG. 5 is a schematic diagram of a format of a GTP packet according to an embodiment of the present disclosure
  • FIG. 6 is a schematic diagram of a format of a back-propagation status report according to an embodiment of the present disclosure
  • FIG. 7 is a schematic diagram of interaction of a data back propagation method according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic diagram of interaction of a data back propagation method according to another embodiment of the present disclosure.
  • FIG. 9 is a structural block diagram of an electronic device according to an embodiment of the present disclosure.
  • Embodiments of the present disclosure provide a data back-transmission method and apparatus, which can ensure the reliability of data back-transmission, avoid packet loss, and thereby enhance user experience.
  • This embodiment provides a data back-transmission method, which is applied to a target-side cell in data back-transmission. As shown in FIG. 1 , the method in this embodiment includes: Step 101 to Step 103.
  • Step 101 Receive back-transmission data sent by the source-side cell.
  • Step 102 Detect whether the user plane packet of the received GTP (GRPS Tunneling Protocol) is continuous.
  • Step 103 If the GTP packet is not consecutive, record the first time point of receiving the first discontinuous GTP packet, and the discontinuous GTP packet received later and the time of the first time point. Room When the preset threshold is exceeded, the back-end status report is sent to the source-side cell, where the back-propagation status report includes the lost GTP message information.
  • the target side cell receives the back-transmission data sent by the source-side cell, and the target-side cell detects whether the received GTP message is continuous. If the GTP message is not continuous, the record receives the first discontinuous GTP message. The first time point, when the time interval between the discontinuous GTP packet received and the first time point exceeds a preset threshold, the target side cell sends a back propagation status report to the source side cell, and the backhaul status report includes The lost GTP packet information, the source-side cell can re-send the lost GTP packet according to the lost GTP packet information.
  • the above technical solution can ensure the reliability of data back-transmission and avoid packet loss, thereby enhancing the user experience.
  • the method before the back-transmitting data sent by the receiving source-side cell, the method further includes:
  • the switch response is returned to the source side cell, and packet loss detection is enabled.
  • the method further includes:
  • the packet loss detection is stopped.
  • the back-end status report is sent to the source-side cell, where the back-propagation status report includes There is missing GTP message information.
  • the preset threshold ranges from 2 to 5 ms.
  • the present embodiment provides a data back-transmission device, which is applied to a target-side cell in data back-transmission.
  • the device includes: a receiving module 201, a detecting module 202, and a processing module 203.
  • the receiving module 201 is configured to receive the backhaul data sent by the source side cell.
  • the detecting module 202 is configured to detect whether the received GTP message is continuous.
  • the processing module 203 is configured to: if the GTP packet is not consecutive, record the first time point of receiving the first discontinuous GTP packet, and the discontinuous GTP packet received thereafter and the first time When the time interval of the point exceeds the preset threshold, the back-end status report is sent to the source-side cell, where the back-propagation status report includes the lost GTP message information.
  • the target side cell receives the back-transmission data sent by the source-side cell, and the target-side cell detects whether the received GTP message is continuous. If the GTP message is not continuous, the record receives the first discontinuous GTP message. The first time point, when the time interval between the discontinuous GTP packet received and the first time point exceeds a preset threshold, the target side cell sends a back propagation status report to the source side cell, and the backhaul status report includes The lost GTP packet information, the source-side cell can re-send the lost GTP packet according to the lost GTP packet information.
  • the above technical solution can ensure the reliability of data back-transmission and avoid packet loss, thereby enhancing the user experience.
  • the receiving module is further configured to receive a handover request sent by the source side cell;
  • the processing module is further configured to return a handover response to the source side cell, and enable packet loss detection.
  • the receiving module is further configured to receive a data transmission end message sent by the source side cell;
  • the detecting module is further configured to detect whether the GTP packet received at the current time point is continuous.
  • the processing module is further configured to stop the packet loss detection when the GTP packet received at the current time point is continuous; and send the back propagation status report to the source cell when the GTP packet received at the current time point is not continuous.
  • the backhaul status report includes missing GTP message information.
  • This embodiment provides a data back-transmission method, which is applied to a source-side cell in data back-transmission. As shown in FIG. 3, this embodiment includes: Step 301 to Step 303.
  • Step 301 Send back-transmission data to the target side cell.
  • Step 302 Receive a back-propagation status report returned by the target-side cell, where the back-propagation status report includes the lost GTP message information.
  • Step 303 Detect whether the corresponding terminal information is deleted. If not, delete the lost GTP packet according to the lost GTP packet information.
  • the target side cell receives the back-transmission data sent by the source-side cell, and the target-side cell sends a back-propagation status report to the source-side cell.
  • the back-propagation status report includes the lost GTP message information, and the source-side cell is based on the lost The GTP packet information re-sends the lost GTP packet.
  • the method before the sending the back-transmission data to the target-side cell, the method further includes:
  • the method further includes:
  • the transmission of the backhaul data is stopped, and the data transmission end message is sent to the target side cell.
  • the present embodiment provides a data back-transmission device, which is applied to a source-side cell in data back-transmission.
  • the device includes: a sending module 401, a receiving module 402, and a processing module 403.
  • the sending module 401 is configured to send back-transmission data to the target side cell.
  • the receiving module 402 is configured to receive a back-propagation status report returned by the target-side cell, where the back-propagation status report includes the lost GRPS tunneling protocol user plane GTP message information.
  • the processing module 403 is configured to detect whether the corresponding terminal information is deleted. If not, the lost GTP packet is retransmitted according to the lost GTP packet information.
  • the target side cell receives the back-transmission data sent by the source-side cell, and the target-side cell sends a back-propagation status report to the source-side cell.
  • the back-propagation status report includes the lost GTP message information, and the source-side cell is based on the lost The GTP packet information re-sends the lost GTP packet.
  • the receiving module is further configured to receive a measurement report sent by the terminal;
  • the sending module is further configured to send a handover request to the target side cell
  • the receiving module is further configured to receive a handover response returned by the target side cell.
  • the receiving module is further configured to receive a reconfiguration complete message reported by the terminal;
  • the sending module is further configured to stop sending back data and send a data transmission end message to the target side cell.
  • the data is transmitted in the GTP packet format.
  • the specific format is shown in Figure 5.
  • the target-side cell determines whether it exists according to the GTP SN (serial number) of the packet. Packet loss phenomenon, if there is a packet loss, the target-side cell will report the back-transmission status report to the source-side cell.
  • the specific format is shown in Figure 6, so that the source-side cell reports retransmission of the lost packet according to the back-transmission status, thereby ensuring The reliability of switching transmissions.
  • the data back propagation method of this embodiment includes the following steps:
  • the UE sends a measurement report (Measure report) to the source side cell, and the source side cell receives the measurement report and starts to prepare for handover;
  • the source side cell sends a handover request (Handover Request) to the core network MME (Mobility Management Entity), and the MME transmits the handover request to the target side cell;
  • Handover Request a handover request
  • MME Mobility Management Entity
  • the target side cell After receiving the handover request, the target side cell establishes the UE instance and starts the handover backhaul packet loss detection, and responds the handover request (Handover Request ack) to the core network MME, and the MME transparently transmits the handover. Should be given to the source side cell;
  • the source side cell sends a connection reconfiguration message (RrcConnextion RrcConfiguration) to the UE, and simultaneously transmits a Packet Data Convergence Protocol (PDCP) SN (Serial Number) and a HFN (Hyper Frame Number).
  • PDCP Packet Data Convergence Protocol
  • HFN Heyper Frame Number
  • the target side cell receives the backhaul data of the source side cell and is still in the switching state to detect whether the GTP SN is continuous, if it is consecutively stored in the receiving queue or transmits the data of the source side back to the UE, if not, continue the step. (6);
  • the target-side cell After receiving the first GTP SN discontinuous packet, the target-side cell records the timestamp, and sends the reverse to the source-side cell after the interval between the subsequent discontinuous packet and the first discontinuous packet exceeds 2 ms.
  • the status report, the format of the back-propagation status report is as shown in Figure 6. Fill in the missing pieces of the message and the GTP SN information of the start and end.
  • a back-propagation status report can contain up to four sets of discontinuous packet loss intervals. If a message is lost, the start sequence number is the same as the end sequence number;
  • the source side cell After receiving the backhaul status report, the source side cell detects whether the source side UE information is deleted. If the source side UE information is not deleted, the lost GTP SN retransmits the lost message if the source is detected. If the side UE information is deleted, the processing ends.
  • the target side cell After receiving the Endmarker, the target side cell stops the packet loss detection if there is no packet loss, and directly sends a status report to the source side cell if there is a packet loss;
  • the target side cell receives the back-transmission data sent by the source-side cell, and the target-side cell detects whether the received GTP message is continuous. If the GTP message is not continuous, the record receives the first discontinuous GTP message. The first time point, when the time interval between the discontinuous GTP message received and the first time point exceeds 2 ms, the target side cell sends a back propagation status report to the source side cell, and the backhaul status report includes the lost GTP packet information, the source-side cell re-transmits the lost GTP packet according to the lost GTP packet information.
  • the above technical solution can ensure the reliability of data back-transmission and avoid packet loss, thereby enhancing the user experience.
  • the data is transmitted in the GTP packet format.
  • the specific format is shown in Figure 5.
  • the target-side cell determines whether it exists according to the GTP SN (serial number) of the packet. Packet loss phenomenon, if there is a packet loss, the target-side cell will report the back-transmission status report to the source-side cell.
  • the specific format is shown in Figure 6, so that the source-side cell reports retransmission of the lost packet according to the back-transmission status, thereby ensuring The reliability of switching transmissions.
  • the data back propagation method of this embodiment includes the following steps:
  • the UE sends a measurement report (Measure report) to the source side cell, and the source side cell receives the measurement report and starts to prepare for handover;
  • the source side cell sends a handover request (Handover Request) to the target side cell;
  • the target side cell After receiving the handover request, the target side cell establishes the UE instance and starts the handover backhaul packet loss detection, and returns a handover request (Handover Request ack) to the source side cell;
  • the source side cell sends a connection reconfiguration message (RrcConnextion RrcConfiguration) to the UE, and simultaneously transmits PDCP (Packet Data Convergence Protocol) SN (serial number) and HFN (super frame number) information to the target side cell;
  • PDCP Packet Data Convergence Protocol
  • SN Serial number
  • HFN super frame number
  • the target side cell receives the backhaul data of the source side cell and is still in the switching state to detect whether the GTP SN is continuous, if it is consecutively stored in the receiving queue or transmits the data of the source side back to the UE, if not, continue the step. (6);
  • the target side cell After receiving the first GTP SN discontinuous packet, the target side cell starts a 5ms timer, and sends a backhaul status report to the source side cell after the 5ms timer expires.
  • the format of the backhaul status report is as shown in Figure 6. In the description, fill in the missing pieces of the message and the GTP SN information of the start and end.
  • a back-propagation status report can contain up to four sets of discontinuous packet loss intervals. If only one message is lost, the start sequence number and the end sequence number are the same;
  • the source side cell After receiving the backhaul status report, the source side cell detects whether the source side UE information is deleted. If not, the source side UE retransmits the lost message according to the indicated lost GTP SN, otherwise the processing ends;
  • the target side cell After receiving the Endmarker, the target side cell stops the packet loss detection if there is no packet loss, and directly sends a status report to the source side cell if there is a packet loss;
  • the source side cell After receiving the message (Ue Context Release msg) of the core network release UE, the source side cell stops the retransmission retransmission process.
  • the target side cell receives the back-transmission data sent by the source-side cell, and the target-side cell detects whether the received GTP message is continuous. If the GTP message is not continuous, the record receives the first discontinuous GTP message. The first time point, when the time interval between the discontinuous GTP packet received and the first time point exceeds 5 ms, the target side cell sends a back propagation status report to the source side cell, and the backhaul status report includes the lost GTP packet information, the source side cell retransmits the lost according to the lost GTP packet information.
  • the GTP packet can ensure the reliability of data back-transmission and avoid packet loss, thereby enhancing the user experience. This embodiment can also reduce the load of the service server and the core network.
  • the present disclosure also provides a non-transitory storage medium storing computer executable instructions arranged to perform the data backpropagation method of the above embodiments.
  • the present disclosure also provides a computer program product comprising a computer program stored on a non-transitory computer readable storage medium, the computer program comprising program instructions, when the program instructions are executed by a computer, The computer is caused to execute the data back propagation method of the above embodiment.
  • FIG. 9 is a structural block diagram of an electronic device according to an embodiment of the present disclosure.
  • the electronic device may include a processor 91 and a memory 93, and may further include a communication interface 92 and a bus 94.
  • the processor 91, the communication interface 92, and the memory 93 can complete communication with each other through the bus 94.
  • Communication interface 92 can be used for information transfer.
  • the processor 91 can call the logic instructions in the memory 93 to perform the data back propagation method of the above embodiment.
  • the logic instructions in the memory 93 described above may be implemented in the form of a software functional unit and sold or used as a stand-alone product, and may be stored in a computer readable storage medium.
  • the technical solution of the present disclosure may be embodied in the form of a software product stored in a storage medium, including a plurality of instructions for causing a computer device (which may be a personal computer, a server, or a network) The device or the like) performs all or part of the steps of the method described in various embodiments of the present disclosure.
  • the foregoing storage medium may be a non-transitory storage medium, including: a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk. a medium that can store program code, or It is a transient storage medium.
  • modules may be implemented in software for execution by various types of processors.
  • an identified executable code module can comprise one or more physical or logical blocks of computer instructions, which can be constructed, for example, as an object, procedure, or function. Nevertheless, the executable code of the identified modules need not be physically located together, but may include different instructions stored in different physicalities. When these instructions are logically combined, they constitute a module and achieve the specified purpose of the module. .
  • the executable code module can be a single instruction or a plurality of instructions, and can even be distributed across multiple different code segments, distributed among different programs, and distributed across multiple memory devices.
  • operational data may be identified within the modules and may be implemented in any suitable form and organized within any suitable type of data structure. The operational data may be collected as a single data set, or may be distributed at different locations (including on different storage devices), and may at least partially exist as an electronic signal on a system or network.
  • the module can be implemented by software, considering the level of the existing hardware process, the module can be implemented in software, and the technician can construct a corresponding hardware circuit to implement the corresponding function without considering the cost.
  • the hardware circuitry includes conventional Very Large Scale Integration (VLSI) circuits or gate arrays as well as existing semiconductors such as logic chips, transistors, or other discrete components.
  • VLSI Very Large Scale Integration
  • the modules can also be implemented with programmable hardware devices such as field programmable gate arrays, programmable array logic, programmable logic devices, and the like.
  • the data back-propagation method and apparatus of the present disclosure can ensure the reliability of data back-transmission, avoid packet loss, and thereby enhance the user experience.

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  • Computer Networks & Wireless Communication (AREA)
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Abstract

Provided are a data reverse transmission method and device, belonging to the field of wireless communications. The data reverse transmission method comprises: receiving reverse transmission data sent by a source side cell; detecting whether a received GTP packet of a GTP user plane is continuous; and if the GTP packet is discontinuous, recording a first time point of receiving the first discontinuous GTP packet, and when a time interval between a discontinuous GTP packet received thereafter and the first time point exceeds a pre-set threshold value, sending a reverse transmission status report to the source side cell, wherein the reverse transmission status report comprises lost GTP packet information.

Description

数据反传方法及装置Data back propagation method and device 技术领域Technical field
本公开涉及无线通信领域，例如涉及一种数据反传方法及装置。The present disclosure relates to the field of wireless communications, for example, to a data back propagation method and apparatus.
背景技术Background technique
当UE(User Equipment，用户设备)进行站间或者是板间切换的过程中，为了减少丢包，需要把源侧小区的数据报文反传到目标侧小区。In the process of the inter-station or the inter-board handover, the UE needs to forward the data packet of the source-side cell to the target-side cell.
在目前的切换过程中，源侧小区的数据包可以反传到目标侧小区，但是目标侧小区并不会向源侧小区反馈信息，只是被动的接收源侧小区反传的数据包，所以在整个反传数据的过程中都是不可靠传输，即如果传输链路出现丢包，则无法保证数据的可靠性。并且在切换中出现丢包时，TCP(Transmission Control Protocol，传输控制协议)业务会进入慢启动或者快速恢复的过程，导致流量出现掉沟的现象，进而影响用户体验。In the current handover process, the data packet of the source side cell may be back-transmitted to the target side cell, but the target side cell does not feed back information to the source side cell, but passively receives the data packet of the source side cell back-transmission, so The whole process of back-transmission data is unreliable transmission, that is, if packet loss occurs on the transmission link, the reliability of the data cannot be guaranteed. When the packet loss occurs during the handover, the TCP (Transmission Control Protocol) service enters the process of slow start or fast recovery, causing the traffic to drop and affect the user experience.
发明内容Summary of the invention
本公开提供一种数据反传方法及装置，能够保证数据反传的可靠性，避免丢包，进而增强用户体验。The present disclosure provides a data back-transmission method and device, which can ensure the reliability of data back-transmission and avoid packet loss, thereby enhancing the user experience.
一方面，本公开的实施例提供一种数据反传方法，应用于数据反传中的目标侧小区，所述方法包括：In one aspect, an embodiment of the present disclosure provides a data back propagation method, which is applied to a target side cell in data back propagation, where the method includes:
接收源侧小区发送的反传数据；Receiving back-transmission data sent by the source-side cell;
检测接收到的GPRS(General Packet Radio Service)隧道协议用户面GTP(GPRS Tunnelling Protocol)报文是否连续； Detecting whether the received GPRS (General Packet Radio Service) tunneling protocol user plane GTP (GPRS Tunnelling Protocol) message is continuous;
若所述GTP报文不连续，记录接收到第一个不连续的GTP报文的第一时间点，在之后接收到的不连续的GTP报文与所述第一时间点的时间间隔超过预设阈值时，向源侧小区发送反传状态报告，所述反传状态报告包括有丢失的GTP报文信息。If the GTP packet is not consecutive, the first time point of receiving the first discontinuous GTP packet is recorded, and the time interval between the discontinuous GTP packet received and the first time point is exceeded. When the threshold is set, a back-propagation status report is sent to the source-side cell, where the back-propagation status report includes the lost GTP message information.
可选地，所述接收源侧小区发送的反传数据之前还包括：Optionally, before the back-transmitting data sent by the receiving source-side cell, the method further includes:
接收源侧小区发送的切换请求；Receiving a handover request sent by the source side cell;
向源侧小区回复切换响应，并开启丢包检测。The switch response is returned to the source side cell, and packet loss detection is enabled.
可选地，所述向源侧小区发送反传状态报告之后还包括：Optionally, after the sending the back-propagation status report to the source-side cell, the method further includes:
接收源侧小区发送的数据传输结束报文；Receiving a data transmission end message sent by the source side cell;
检测当前时间点接收到的GTP报文是否连续；Check whether the GTP packets received at the current time point are consecutive;
在当前时间点接收到的GTP报文连续时，停止丢包检测；在当前时间点接收到的GTP报文不连续时，将向源侧小区发送反传状态报告，所述反传状态报告包括有丢失的GTP报文信息。When the GTP packets received at the current time point are consecutive, the packet loss detection is stopped. When the GTP packets received at the current time point are not consecutive, the back-end status report is sent to the source-side cell, where the back-propagation status report includes There is missing GTP message information.
可选地，所述预设阈值的范围为2-5ms。Optionally, the preset threshold ranges from 2 to 5 ms.
本公开的实施例还提供了一种数据反传装置，应用于数据反传中的目标侧小区，所述装置包括：The embodiment of the present disclosure further provides a data back-transmission device, which is applied to a target side cell in data back-transmission, and the device includes:
接收模块，设置为接收源侧小区发送的反传数据；a receiving module, configured to receive back-transmission data sent by the source-side cell;
检测模块，设置为检测接收到的GRPS隧道协议用户面GTP报文是否连续；The detecting module is configured to detect whether the received GTP message of the GRPS tunneling protocol user plane is continuous;
处理模块，设置为若所述GTP报文不连续，记录接收到第一个不连续的GTP报文的第一时间点，在之后接收到的不连续的GTP报文与所述第一时间点的时间间隔超过预设阈值时，向源侧小区发送反传状态报告，所述反传状态报告包括有丢失的GTP报文信息。The processing module is configured to: if the GTP packet is not consecutive, record the first time point of receiving the first discontinuous GTP packet, and the discontinuous GTP packet received thereafter and the first time point When the time interval exceeds the preset threshold, the back-end status report is sent to the source-side cell, where the back-propagation status report includes the lost GTP message information.
可选地，所述接收模块还设置为接收源侧小区发送的切换请求； Optionally, the receiving module is further configured to receive a handover request sent by the source side cell;
所述处理模块还设置为向源侧小区回复切换响应，并开启丢包检测。The processing module is further configured to return a handover response to the source side cell, and enable packet loss detection.
可选地，所述接收模块还设置为接收源侧小区发送的数据传输结束报文；Optionally, the receiving module is further configured to receive a data transmission end message sent by the source side cell;
所述检测模块还设置为检测当前时间点接收到的GTP报文是否连续，The detecting module is further configured to detect whether the GTP packet received at the current time point is continuous.
所述处理模块还设置为在当前时间点接收到的GTP报文连续时，停止丢包检测；在当前时间点接收到的GTP报文不连续时，将向源侧小区发送反传状态报告，所述反传状态报告包括有丢失的GTP报文信息。The processing module is further configured to stop the packet loss detection when the GTP packet received at the current time point is continuous; and send the back propagation status report to the source cell when the GTP packet received at the current time point is not continuous. The backhaul status report includes missing GTP message information.
本公开实施例还提供了一种数据反传方法，应用于数据反传中的源侧小区，所述方法包括：The embodiment of the present disclosure further provides a data back propagation method, which is applied to a source side cell in data back propagation, and the method includes:
向目标侧小区发送反传数据；Sending back data to the target side cell;
接收目标侧小区返回的反传状态报告，所述反传状态报告包括有丢失的GRPS隧道协议用户面GTP报文信息；Receiving a back-propagation status report returned by the target-side cell, where the back-propagation status report includes the lost GRPS tunneling protocol user plane GTP message information;
检测对应的终端信息是否删除，若对应的终端信息未删除，根据所述丢失的GTP报文信息重新发送丢失的GTP报文。The device detects whether the corresponding terminal information is deleted. If the corresponding terminal information is not deleted, the lost GTP packet is retransmitted according to the lost GTP packet information.
可选地，所述向目标侧小区发送反传数据之前还包括：Optionally, before the sending the back-transmission data to the target-side cell, the method further includes:
接收终端发送的测量报告；Receiving a measurement report sent by the terminal;
向目标侧小区发送切换请求；Sending a handover request to the target side cell;
接收目标侧小区返回的切换响应。Receiving a handover response returned by the target side cell.
可选地，所述重新发送丢失的GTP报文之后还包括：Optionally, after the resending the lost GTP packet, the method further includes:
接收所述终端上报的重配完成消息；Receiving a reconfiguration complete message reported by the terminal;
停止发送反传数据，并向目标侧小区发送数据传输结束报文。The transmission of the backhaul data is stopped, and the data transmission end message is sent to the target side cell.
本公开实施例还提供了一种数据反传装置，应用于数据反传中的源侧小区，所述装置包括：The embodiment of the present disclosure further provides a data back-transmission device, which is applied to a source-side cell in data back-transmission, and the device includes:
发送模块，设置为向目标侧小区发送反传数据； a sending module, configured to send back data to the target side cell;
接收模块，设置为接收目标侧小区返回的反传状态报告，所述反传状态报告包括有丢失的GRPS隧道协议用户面GTP报文信息；a receiving module, configured to receive a back-propagation status report returned by the target-side cell, where the back-propagation status report includes a lost GRPS tunneling protocol user plane GTP message information;
处理模块，设置为检测对应的终端信息是否删除，若未删除，根据所述丢失的GTP报文信息重新发送丢失的GTP报文。The processing module is configured to detect whether the corresponding terminal information is deleted. If not, the lost GTP packet is resent according to the lost GTP packet information.
可选地，所述接收模块还用于接收终端发送的测量报告；Optionally, the receiving module is further configured to receive a measurement report sent by the terminal;
所述发送模块还设置为向目标侧小区发送切换请求；The sending module is further configured to send a handover request to the target side cell;
所述接收模块还设置为接收目标侧小区返回的切换响应。The receiving module is further configured to receive a handover response returned by the target side cell.
可选地，所述接收模块还设置为接收所述终端上报的重配完成消息；Optionally, the receiving module is further configured to receive a reconfiguration complete message reported by the terminal;
所述发送模块还设置为停止发送反传数据，并向目标侧小区发送数据传输结束报文。The sending module is further configured to stop sending back data and send a data transmission end message to the target side cell.
本公开还提供了一种非暂态存储介质，存储有计算机可执行指令，所述计算机可执行指令设置为执行上述的数据反传方法。The present disclosure also provides a non-transitory storage medium storing computer executable instructions arranged to perform the data backpropagation method described above.
本公开还提供了一种计算机程序产品，所述计算机程序产品包括存储在非暂态计算机可读存储介质上的计算机程序，所述计算机程序包括程序指令，当所述程序指令被计算机执行时，使所述计算机执行上述的数据反传方法。The present disclosure also provides a computer program product comprising a computer program stored on a non-transitory computer readable storage medium, the computer program comprising program instructions, when the program instructions are executed by a computer, The computer is caused to perform the above-described data back propagation method.
本公开还提供了一种电子设备，包括至少一个处理器和与所述至少一个处理器通信连接的存储器，所述存储器用于存储可被所述至少一个处理器执行的指令，所述指令被所述至少一个处理器执行时，使所述至少一个处理器执行上述的数据反传方法。The present disclosure also provides an electronic device comprising at least one processor and a memory communicatively coupled to the at least one processor, the memory for storing instructions executable by the at least one processor, the instructions being The at least one processor, when executed, causes the at least one processor to perform the data backpropagation method described above.
本公开的数据反传方法和装置能够保证数据反传的可靠性，避免丢包，进而增强用户体验。 The data back-propagation method and apparatus of the present disclosure can ensure the reliability of data back-transmission, avoid packet loss, and thereby enhance the user experience.
附图说明DRAWINGS
图1为本公开实施例数据反传方法的流程示意图；1 is a schematic flow chart of a data back propagation method according to an embodiment of the present disclosure;
图2为本公开实施例数据反传装置的结构框图；2 is a structural block diagram of a data back-transmission apparatus according to an embodiment of the present disclosure;
图3为本公开实施例数据反传方法的流程示意图；3 is a schematic flowchart of a data back-propagation method according to an embodiment of the present disclosure;
图4为本公开实施例数据反传装置的结构框图；4 is a structural block diagram of a data back-transmission apparatus according to an embodiment of the present disclosure;
图5为本公开实施例GTP报文的格式示意图；FIG. 5 is a schematic diagram of a format of a GTP packet according to an embodiment of the present disclosure;
图6为本公开实施例反传状态报告的格式示意图；6 is a schematic diagram of a format of a back-propagation status report according to an embodiment of the present disclosure;
图7为本公开实施例数据反传方法的交互示意图；FIG. 7 is a schematic diagram of interaction of a data back propagation method according to an embodiment of the present disclosure;
图8为本公开另一实施例数据反传方法的交互示意图；FIG. 8 is a schematic diagram of interaction of a data back propagation method according to another embodiment of the present disclosure;
图9为本公开实施例提供的电子设备的结构框图。FIG. 9 is a structural block diagram of an electronic device according to an embodiment of the present disclosure.
具体实施方式detailed description
下面将结合本公开实施例中的附图，对本公开实施例中的技术方案进行清楚、完整地描述，在不冲突的情况下，以下实施例和实施例中的特征可以相互组合。本公开的实施例提供一种数据反传方法及装置，能够保证数据反传的可靠性，避免丢包，进而增强用户体验。The technical solutions in the embodiments of the present disclosure will be clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present disclosure, and the features in the following embodiments and embodiments may be combined with each other without conflict. Embodiments of the present disclosure provide a data back-transmission method and apparatus, which can ensure the reliability of data back-transmission, avoid packet loss, and thereby enhance user experience.
实施例一 Embodiment 1
本实施例提供一种数据反传方法，应用于数据反传中的目标侧小区，如图1所示，本实施例方法包括：步骤101至步骤103。This embodiment provides a data back-transmission method, which is applied to a target-side cell in data back-transmission. As shown in FIG. 1 , the method in this embodiment includes: Step 101 to Step 103.
步骤101：接收源侧小区发送的反传数据；Step 101: Receive back-transmission data sent by the source-side cell.
步骤102：检测接收到的GTP(GRPS隧道协议)的用户面报文是否连续；Step 102: Detect whether the user plane packet of the received GTP (GRPS Tunneling Protocol) is continuous.
步骤103：若所述GTP报文不连续，记录接收到第一个不连续的GTP报文的第一时间点，在之后接收到的不连续的GTP报文与所述第一时间点的时间间 隔超过预设阈值时，向源侧小区发送反传状态报告，所述反传状态报告包括有丢失的GTP报文信息。Step 103: If the GTP packet is not consecutive, record the first time point of receiving the first discontinuous GTP packet, and the discontinuous GTP packet received later and the time of the first time point. Room When the preset threshold is exceeded, the back-end status report is sent to the source-side cell, where the back-propagation status report includes the lost GTP message information.
本实施例中，目标侧小区接收源侧小区发送的反传数据，目标侧小区检测接收到的GTP报文是否连续，若GTP报文不连续，记录接收到第一个不连续的GTP报文的第一时间点，在之后接收到的不连续的GTP报文与第一时间点的时间间隔超过预设阈值时，目标侧小区向源侧小区发送反传状态报告，反传状态报告包括有丢失的GTP报文信息，源侧小区能够根据丢失的GTP报文信息重新发送丢失的GTP报文，通过上述技术方案能够保证数据反传的可靠性，避免丢包，进而增强用户体验。In this embodiment, the target side cell receives the back-transmission data sent by the source-side cell, and the target-side cell detects whether the received GTP message is continuous. If the GTP message is not continuous, the record receives the first discontinuous GTP message. The first time point, when the time interval between the discontinuous GTP packet received and the first time point exceeds a preset threshold, the target side cell sends a back propagation status report to the source side cell, and the backhaul status report includes The lost GTP packet information, the source-side cell can re-send the lost GTP packet according to the lost GTP packet information. The above technical solution can ensure the reliability of data back-transmission and avoid packet loss, thereby enhancing the user experience.
可选地，所述接收源侧小区发送的反传数据之前还包括：Optionally, before the back-transmitting data sent by the receiving source-side cell, the method further includes:
接收源侧小区发送的切换请求；Receiving a handover request sent by the source side cell;
向源侧小区回复切换响应，并开启丢包检测。The switch response is returned to the source side cell, and packet loss detection is enabled.
可选地，所述向源侧小区发送反传状态报告之后还包括：Optionally, after the sending the back-propagation status report to the source-side cell, the method further includes:
接收源侧小区发送的数据传输结束报文；Receiving a data transmission end message sent by the source side cell;
检测当前时间点接收到的GTP报文是否连续；Check whether the GTP packets received at the current time point are consecutive;
在当前时间点接收到的GTP报文连续时，停止丢包检测；在当前时间点接收到的GTP报文不连续时，将向源侧小区发送反传状态报告，所述反传状态报告包括有丢失的GTP报文信息。When the GTP packets received at the current time point are consecutive, the packet loss detection is stopped. When the GTP packets received at the current time point are not consecutive, the back-end status report is sent to the source-side cell, where the back-propagation status report includes There is missing GTP message information.
可选地，所述预设阈值的范围为2-5ms。Optionally, the preset threshold ranges from 2 to 5 ms.
实施例二 Embodiment 2
本实施例提供了一种数据反传装置，应用于数据反传中的目标侧小区，如图2所示，所述装置包括：接收模块201，检测模块202以及处理模块203。The present embodiment provides a data back-transmission device, which is applied to a target-side cell in data back-transmission. As shown in FIG. 2, the device includes: a receiving module 201, a detecting module 202, and a processing module 203.
接收模块201设置为接收源侧小区发送的反传数据。 The receiving module 201 is configured to receive the backhaul data sent by the source side cell.
检测模块202设置为检测接收到的GTP报文是否连续。The detecting module 202 is configured to detect whether the received GTP message is continuous.
处理模块203设置为：若所述GTP报文不连续，记录接收到第一个不连续的GTP报文的第一时间点，在之后接收到的不连续的GTP报文与所述第一时间点的时间间隔超过预设阈值时，向源侧小区发送反传状态报告，所述反传状态报告包括有丢失的GTP报文信息。The processing module 203 is configured to: if the GTP packet is not consecutive, record the first time point of receiving the first discontinuous GTP packet, and the discontinuous GTP packet received thereafter and the first time When the time interval of the point exceeds the preset threshold, the back-end status report is sent to the source-side cell, where the back-propagation status report includes the lost GTP message information.
本实施例中，目标侧小区接收源侧小区发送的反传数据，目标侧小区检测接收到的GTP报文是否连续，若GTP报文不连续，记录接收到第一个不连续的GTP报文的第一时间点，在之后接收到的不连续的GTP报文与第一时间点的时间间隔超过预设阈值时，目标侧小区向源侧小区发送反传状态报告，反传状态报告包括有丢失的GTP报文信息，源侧小区能够根据丢失的GTP报文信息重新发送丢失的GTP报文，通过上述技术方案能够保证数据反传的可靠性，避免丢包，进而增强用户体验。In this embodiment, the target side cell receives the back-transmission data sent by the source-side cell, and the target-side cell detects whether the received GTP message is continuous. If the GTP message is not continuous, the record receives the first discontinuous GTP message. The first time point, when the time interval between the discontinuous GTP packet received and the first time point exceeds a preset threshold, the target side cell sends a back propagation status report to the source side cell, and the backhaul status report includes The lost GTP packet information, the source-side cell can re-send the lost GTP packet according to the lost GTP packet information. The above technical solution can ensure the reliability of data back-transmission and avoid packet loss, thereby enhancing the user experience.
可选地，所述接收模块还设置为接收源侧小区发送的切换请求；Optionally, the receiving module is further configured to receive a handover request sent by the source side cell;
所述处理模块还设置为向源侧小区回复切换响应，并开启丢包检测。The processing module is further configured to return a handover response to the source side cell, and enable packet loss detection.
可选地，所述接收模块还设置为接收源侧小区发送的数据传输结束报文；Optionally, the receiving module is further configured to receive a data transmission end message sent by the source side cell;
所述检测模块还设置为检测当前时间点接收到的GTP报文是否连续，The detecting module is further configured to detect whether the GTP packet received at the current time point is continuous.
所述处理模块还设置为在当前时间点接收到的GTP报文连续时，停止丢包检测；在当前时间点接收到的GTP报文不连续时，将向源侧小区发送反传状态报告，所述反传状态报告包括有丢失的GTP报文信息。The processing module is further configured to stop the packet loss detection when the GTP packet received at the current time point is continuous; and send the back propagation status report to the source cell when the GTP packet received at the current time point is not continuous. The backhaul status report includes missing GTP message information.
实施例三 Embodiment 3
本实施例提供了一种数据反传方法，应用于数据反传中的源侧小区，如图3所示，本实施例包括：步骤301至步骤303。This embodiment provides a data back-transmission method, which is applied to a source-side cell in data back-transmission. As shown in FIG. 3, this embodiment includes: Step 301 to Step 303.
步骤301：向目标侧小区发送反传数据； Step 301: Send back-transmission data to the target side cell.
步骤302：接收目标侧小区返回的反传状态报告，所述反传状态报告包括有丢失的GTP报文信息；Step 302: Receive a back-propagation status report returned by the target-side cell, where the back-propagation status report includes the lost GTP message information.
步骤303：检测对应的终端信息是否删除，若未删除，根据所述丢失的GTP报文信息重新发送丢失的GTP报文。Step 303: Detect whether the corresponding terminal information is deleted. If not, delete the lost GTP packet according to the lost GTP packet information.
本实施例中，目标侧小区接收源侧小区发送的反传数据，目标侧小区向源侧小区发送反传状态报告，反传状态报告包括有丢失的GTP报文信息，源侧小区根据丢失的GTP报文信息重新发送丢失的GTP报文，通过上述技术方案能够保证数据反传的可靠性，避免丢包，进而增强用户体验。In this embodiment, the target side cell receives the back-transmission data sent by the source-side cell, and the target-side cell sends a back-propagation status report to the source-side cell. The back-propagation status report includes the lost GTP message information, and the source-side cell is based on the lost The GTP packet information re-sends the lost GTP packet. The above technical solution can ensure the reliability of data back-transmission and avoid packet loss, thereby enhancing the user experience.
可选地，所述向目标侧小区发送反传数据之前还包括：Optionally, before the sending the back-transmission data to the target-side cell, the method further includes:
接收终端发送的测量报告；Receiving a measurement report sent by the terminal;
向目标侧小区发送切换请求；Sending a handover request to the target side cell;
接收目标侧小区返回的切换响应。Receiving a handover response returned by the target side cell.
可选地，所述重新发送丢失的GTP报文之后还包括：Optionally, after the resending the lost GTP packet, the method further includes:
接收所述终端上报的重配完成消息；Receiving a reconfiguration complete message reported by the terminal;
停止发送反传数据，并向目标侧小区发送数据传输结束报文。The transmission of the backhaul data is stopped, and the data transmission end message is sent to the target side cell.
实施例四 Embodiment 4
本实施例提供了一种数据反传装置，应用于数据反传中的源侧小区，如图4所示，所述装置包括：发送模块401，接收模块402以及处理模块403。The present embodiment provides a data back-transmission device, which is applied to a source-side cell in data back-transmission. As shown in FIG. 4, the device includes: a sending module 401, a receiving module 402, and a processing module 403.
发送模块401设置为向目标侧小区发送反传数据。The sending module 401 is configured to send back-transmission data to the target side cell.
接收模块402设置为接收目标侧小区返回的反传状态报告，所述反传状态报告包括有丢失的GRPS隧道协议用户面GTP报文信息。The receiving module 402 is configured to receive a back-propagation status report returned by the target-side cell, where the back-propagation status report includes the lost GRPS tunneling protocol user plane GTP message information.
处理模块403设置为检测对应的终端信息是否删除，若未删除，根据所述丢失的GTP报文信息重新发送丢失的GTP报文。 The processing module 403 is configured to detect whether the corresponding terminal information is deleted. If not, the lost GTP packet is retransmitted according to the lost GTP packet information.
本实施例中，目标侧小区接收源侧小区发送的反传数据，目标侧小区向源侧小区发送反传状态报告，反传状态报告包括有丢失的GTP报文信息，源侧小区根据丢失的GTP报文信息重新发送丢失的GTP报文，通过上述技术方案能够保证数据反传的可靠性，避免丢包，进而增强用户体验。In this embodiment, the target side cell receives the back-transmission data sent by the source-side cell, and the target-side cell sends a back-propagation status report to the source-side cell. The back-propagation status report includes the lost GTP message information, and the source-side cell is based on the lost The GTP packet information re-sends the lost GTP packet. The above technical solution can ensure the reliability of data back-transmission and avoid packet loss, thereby enhancing the user experience.
可选地，所述接收模块还设置为接收终端发送的测量报告；Optionally, the receiving module is further configured to receive a measurement report sent by the terminal;
所述发送模块还设置为向目标侧小区发送切换请求；The sending module is further configured to send a handover request to the target side cell;
所述接收模块还设置为接收目标侧小区返回的切换响应。The receiving module is further configured to receive a handover response returned by the target side cell.
可选地，所述接收模块还设置为接收所述终端上报的重配完成消息；Optionally, the receiving module is further configured to receive a reconfiguration complete message reported by the terminal;
所述发送模块还设置为停止发送反传数据，并向目标侧小区发送数据传输结束报文。The sending module is further configured to stop sending back data and send a data transmission end message to the target side cell.
实施例五 Embodiment 5
在实际的切换过程中，数据以GTP的报文格式传输，具体格式如图5所示，源侧小区开始反传数据以后，目标侧小区会根据报文的GTP SN(序列号)判断是否存在丢包的现象，如果存在丢包则目标侧小区会向源侧小区回复反传状态报告，具体格式如图6所示，以便源侧小区根据反传状态报告重发丢失的报文，进而保证了切换传输的可靠性。In the actual handover process, the data is transmitted in the GTP packet format. The specific format is shown in Figure 5. After the source-side cell starts to transmit data, the target-side cell determines whether it exists according to the GTP SN (serial number) of the packet. Packet loss phenomenon, if there is a packet loss, the target-side cell will report the back-transmission status report to the source-side cell. The specific format is shown in Figure 6, so that the source-side cell reports retransmission of the lost packet according to the back-transmission status, thereby ensuring The reliability of switching transmissions.
如图7所示，本实施例的数据反传方法包括以下步骤：As shown in FIG. 7, the data back propagation method of this embodiment includes the following steps:
(1)UE向源侧小区发送测量报告(Measure report)，源侧小区收到测量报告，开始准备切换；(1) The UE sends a measurement report (Measure report) to the source side cell, and the source side cell receives the measurement report and starts to prepare for handover;
(2)源侧小区向核心网MME(Mobility Management Entity，移动管理实体)发送切换请求(Handover Request)，MME把此切换请求传给目标侧小区；(2) The source side cell sends a handover request (Handover Request) to the core network MME (Mobility Management Entity), and the MME transmits the handover request to the target side cell;
(3)目标侧小区收到切换请求以后，建立UE实例并开启切换反传丢包检测，回复切换响应(Handover Request ack)给核心网MME，MME透传切换响 应给源侧小区；(3) After receiving the handover request, the target side cell establishes the UE instance and starts the handover backhaul packet loss detection, and responds the handover request (Handover Request ack) to the core network MME, and the MME transparently transmits the handover. Should be given to the source side cell;
(4)源侧小区向UE发送连接重配置消息(RrcConnextion RrcConfiguration)，同时发送PDCP(Packet Data Convergence Protocol，分组数据汇聚协议)SN(Serial Number，序列号)和HFN(Hyper Frame Number，超帧号)信息给核心网MME并由核心网MME透传给目标侧小区；(4) The source side cell sends a connection reconfiguration message (RrcConnextion RrcConfiguration) to the UE, and simultaneously transmits a Packet Data Convergence Protocol (PDCP) SN (Serial Number) and a HFN (Hyper Frame Number). The information is transmitted to the core network MME and transparently transmitted by the core network MME to the target side cell;
(5)目标侧小区接收源侧小区的反传数据并且还处于切换态则检测GTP SN是否连续，如果连续则存储在接收队列或者向UE发送源侧反传的数据，如果不连续则继续步骤(6)；(5) The target side cell receives the backhaul data of the source side cell and is still in the switching state to detect whether the GTP SN is continuous, if it is consecutively stored in the receiving queue or transmits the data of the source side back to the UE, if not, continue the step. (6);
(6)目标侧小区收到第一个GTP SN不连续报文后，记录时间戳，后续不连续的报文与第一个不连续的报文的时间间隔超过2ms之后向源侧小区发送反传状态报告，反传状态报告的格式如图6所示，填写丢失几段报文以及开始和结束的GTP SN信息，一个反传状态报告最多可以包含四组不连续的丢包区间，如果只丢失一个报文则开始序列号与结束序列号相同；(6) After receiving the first GTP SN discontinuous packet, the target-side cell records the timestamp, and sends the reverse to the source-side cell after the interval between the subsequent discontinuous packet and the first discontinuous packet exceeds 2 ms. The status report, the format of the back-propagation status report is as shown in Figure 6. Fill in the missing pieces of the message and the GTP SN information of the start and end. A back-propagation status report can contain up to four sets of discontinuous packet loss intervals. If a message is lost, the start sequence number is the same as the end sequence number;
(7)源侧小区收到反传状态报告后，检测源侧UE信息是否被删除，如果检测源侧UE信息没有被删除，则根据指示的丢失GTP SN重新发送丢失的报文，如果检测源侧UE信息被删除，则处理结束；(7) After receiving the backhaul status report, the source side cell detects whether the source side UE information is deleted. If the source side UE information is not deleted, the lost GTP SN retransmits the lost message if the source is detected. If the side UE information is deleted, the processing ends.
(8)UE向目标侧小区上报重配完成消息(RrcConnextion RrcConfiguration Complete)之后，证明切换的信令过程结束；(8) After the UE reports the reconfiguration complete message (RrcConnextion RrcConfiguration Complete) to the target side cell, it is proved that the signaling process of the handover ends;
(9)源侧小区反传报文结束后发送数据传输结束报文(Endmarker)给目标侧小区；(9) After the back-end packet of the source-side cell ends, a data transmission end message (Endmarker) is sent to the target side cell;
(10)目标侧小区收到Endmarker后，如果没有丢包则停止丢包检测，如果有丢包则直接发送状态报告给源侧小区；(10) After receiving the Endmarker, the target side cell stops the packet loss detection if there is no packet loss, and directly sends a status report to the source side cell if there is a packet loss;
(11)源侧小区收到核心网的释放UE的消息(Ue Context Release msg)后， 停止切换反传的重传处理。(11) After receiving the message of the release UE of the core network (Ue Context Release msg), the source side cell receives the message (Ue Context Release msg) Stop switching the retransmission retransmission process.
本实施例中，目标侧小区接收源侧小区发送的反传数据，目标侧小区检测接收到的GTP报文是否连续，若GTP报文不连续，记录接收到第一个不连续的GTP报文的第一时间点，在之后接收到的不连续的GTP报文与第一时间点的时间间隔超过2ms时，目标侧小区向源侧小区发送反传状态报告，反传状态报告包括有丢失的GTP报文信息，源侧小区根据丢失的GTP报文信息重新发送丢失的GTP报文，通过上述技术方案能够保证数据反传的可靠性，避免丢包，进而增强用户体验In this embodiment, the target side cell receives the back-transmission data sent by the source-side cell, and the target-side cell detects whether the received GTP message is continuous. If the GTP message is not continuous, the record receives the first discontinuous GTP message. The first time point, when the time interval between the discontinuous GTP message received and the first time point exceeds 2 ms, the target side cell sends a back propagation status report to the source side cell, and the backhaul status report includes the lost GTP packet information, the source-side cell re-transmits the lost GTP packet according to the lost GTP packet information. The above technical solution can ensure the reliability of data back-transmission and avoid packet loss, thereby enhancing the user experience.
实施例六 Embodiment 6
在实际的切换过程中，数据以GTP的报文格式传输，具体格式如图5所示，源侧小区开始反传数据以后，目标侧小区会根据报文的GTP SN(序列号)判断是否存在丢包的现象，如果存在丢包则目标侧小区会向源侧小区回复反传状态报告，具体格式如图6所示，以便源侧小区根据反传状态报告重发丢失的报文，进而保证了切换传输的可靠性。In the actual handover process, the data is transmitted in the GTP packet format. The specific format is shown in Figure 5. After the source-side cell starts to transmit data, the target-side cell determines whether it exists according to the GTP SN (serial number) of the packet. Packet loss phenomenon, if there is a packet loss, the target-side cell will report the back-transmission status report to the source-side cell. The specific format is shown in Figure 6, so that the source-side cell reports retransmission of the lost packet according to the back-transmission status, thereby ensuring The reliability of switching transmissions.
如图8所示，本实施例的数据反传方法包括以下步骤：As shown in FIG. 8, the data back propagation method of this embodiment includes the following steps:
(1)UE向源侧小区发送测量报告(Measure report)，源侧小区收到测量报告，开始准备切换；(1) The UE sends a measurement report (Measure report) to the source side cell, and the source side cell receives the measurement report and starts to prepare for handover;
(2)源侧小区向目标侧小区发送切换请求(Handover Request)；(2) The source side cell sends a handover request (Handover Request) to the target side cell;
(3)目标侧小区收到切换请求以后，建立UE实例并开启切换反传丢包检测，回复切换响应(Handover Request ack)给源侧小区；(3) After receiving the handover request, the target side cell establishes the UE instance and starts the handover backhaul packet loss detection, and returns a handover request (Handover Request ack) to the source side cell;
(4)源侧小区向UE发送连接重配置消息(RrcConnextion RrcConfiguration)，同时发送PDCP(分组数据汇聚协议)SN(序列号)和HFN(超帧号)信息给目标侧小区； (4) The source side cell sends a connection reconfiguration message (RrcConnextion RrcConfiguration) to the UE, and simultaneously transmits PDCP (Packet Data Convergence Protocol) SN (serial number) and HFN (super frame number) information to the target side cell;
(5)目标侧小区接收源侧小区的反传数据并且还处于切换态则检测GTP SN是否连续，如果连续则存储在接收队列或者向UE发送源侧反传的数据，如果不连续则继续步骤(6)；(5) The target side cell receives the backhaul data of the source side cell and is still in the switching state to detect whether the GTP SN is continuous, if it is consecutively stored in the receiving queue or transmits the data of the source side back to the UE, if not, continue the step. (6);
(6)目标侧小区收到第一个GTP SN不连续报文后，启动5ms定时器，在5ms定时器超时之后向源侧小区发送反传状态报告，反传状态报告的格式如图6所示，填写丢失几段报文以及开始和结束的GTP SN信息，一个反传状态报告最多可以包含四组不连续的丢包区间，如果只丢失一个报文则开始序列号与结束序列号相同；(6) After receiving the first GTP SN discontinuous packet, the target side cell starts a 5ms timer, and sends a backhaul status report to the source side cell after the 5ms timer expires. The format of the backhaul status report is as shown in Figure 6. In the description, fill in the missing pieces of the message and the GTP SN information of the start and end. A back-propagation status report can contain up to four sets of discontinuous packet loss intervals. If only one message is lost, the start sequence number and the end sequence number are the same;
(7)源侧小区收到反传状态报告后，检测源侧UE信息是否被删除，如果没有删除则根据指示的丢失GTP SN重新发送丢失的报文，否则处理结束；(7) After receiving the backhaul status report, the source side cell detects whether the source side UE information is deleted. If not, the source side UE retransmits the lost message according to the indicated lost GTP SN, otherwise the processing ends;
(8)UE向目标侧小区上报重配完成消息(RrcConnextion RrcConfiguration Complete)之后，证明切换的信令过程结束；(8) After the UE reports the reconfiguration complete message (RrcConnextion RrcConfiguration Complete) to the target side cell, it is proved that the signaling process of the handover ends;
(9)源侧小区反传报文结束后发送数据传输结束报文(Endmarker)给目标侧小区；(9) After the back-end packet of the source-side cell ends, a data transmission end message (Endmarker) is sent to the target side cell;
(10)目标侧小区收到Endmarker后，如果没有丢包则停止丢包检测，如果有丢包则直接发送状态报告给源侧小区；(10) After receiving the Endmarker, the target side cell stops the packet loss detection if there is no packet loss, and directly sends a status report to the source side cell if there is a packet loss;
(11)源侧小区收到核心网的释放UE的消息(Ue Context Release msg)后，停止切换反传的重传处理。(11) After receiving the message (Ue Context Release msg) of the core network release UE, the source side cell stops the retransmission retransmission process.
本实施例中，目标侧小区接收源侧小区发送的反传数据，目标侧小区检测接收到的GTP报文是否连续，若GTP报文不连续，记录接收到第一个不连续的GTP报文的第一时间点，在之后接收到的不连续的GTP报文与第一时间点的时间间隔超过5ms时，目标侧小区向源侧小区发送反传状态报告，反传状态报告包括有丢失的GTP报文信息，源侧小区根据丢失的GTP报文信息重新发送丢失 的GTP报文，通过上述技术方案能够保证数据反传的可靠性，避免丢包，进而增强用户体验，本实施例还能够减少业务服务器以及核心网的负荷。In this embodiment, the target side cell receives the back-transmission data sent by the source-side cell, and the target-side cell detects whether the received GTP message is continuous. If the GTP message is not continuous, the record receives the first discontinuous GTP message. The first time point, when the time interval between the discontinuous GTP packet received and the first time point exceeds 5 ms, the target side cell sends a back propagation status report to the source side cell, and the backhaul status report includes the lost GTP packet information, the source side cell retransmits the lost according to the lost GTP packet information. The GTP packet can ensure the reliability of data back-transmission and avoid packet loss, thereby enhancing the user experience. This embodiment can also reduce the load of the service server and the core network.
此说明书中所描述的许多功能部件都被称为模块，以便更加特别地强调其实现方式的独立性。Many of the functional components described in this specification are referred to as modules to more particularly emphasize the independence of their implementation.
本公开还提供了一种非暂态存储介质，存储有计算机可执行指令，所述计算机可执行指令设置为执行上述实施例的数据反传方法。The present disclosure also provides a non-transitory storage medium storing computer executable instructions arranged to perform the data backpropagation method of the above embodiments.
本公开还提供了一种计算机程序产品，所述计算机程序产品包括存储在非暂态计算机可读存储介质上的计算机程序，所述计算机程序包括程序指令，当所述程序指令被计算机执行时，使所述计算机执行上述实施例的数据反传方法。The present disclosure also provides a computer program product comprising a computer program stored on a non-transitory computer readable storage medium, the computer program comprising program instructions, when the program instructions are executed by a computer, The computer is caused to execute the data back propagation method of the above embodiment.
本公开还提供了一种电子设备。图9是本公开实施例提供的电子设备的结构框图。该电子设备可以包括：处理器(processor)91和存储器(memory)93，还可以包括通信接口(Communications Interface)92和总线94。其中，处理器91、通信接口92、存储器93可以通过总线94完成相互间的通信。通信接口92可以用于信息传输。处理器91可以调用存储器93中的逻辑指令，以执行上述实施例的数据反传方法。The present disclosure also provides an electronic device. FIG. 9 is a structural block diagram of an electronic device according to an embodiment of the present disclosure. The electronic device may include a processor 91 and a memory 93, and may further include a communication interface 92 and a bus 94. The processor 91, the communication interface 92, and the memory 93 can complete communication with each other through the bus 94. Communication interface 92 can be used for information transfer. The processor 91 can call the logic instructions in the memory 93 to perform the data back propagation method of the above embodiment.
此外，上述的存储器93中的逻辑指令可以通过软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本公开的技术方案可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本公开各个实施例所述方法的全部或部分步骤。而前述的存储介质可以是非暂态存储介质，包括：U盘、移动硬盘、只读存储器(ROM，Read-Only Memory)、随机存取存储器(RAM，Random Access Memory)、磁碟或者光盘等各种可以存储程序代码的介质，也可 以是暂态存储介质。本公开实施例中，模块可以用软件实现，以便由各种类型的处理器执行。举例来说，一个标识的可执行代码模块可以包括计算机指令的一个或多个物理或者逻辑块，举例来说，其可以被构建为对象、过程或函数。尽管如此，所标识模块的可执行代码无需物理地位于一起，而是可以包括存储在不同物理上的不同的指令，当这些指令逻辑上结合在一起时，其构成模块并且实现该模块的规定目的。Furthermore, the logic instructions in the memory 93 described above may be implemented in the form of a software functional unit and sold or used as a stand-alone product, and may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present disclosure may be embodied in the form of a software product stored in a storage medium, including a plurality of instructions for causing a computer device (which may be a personal computer, a server, or a network) The device or the like) performs all or part of the steps of the method described in various embodiments of the present disclosure. The foregoing storage medium may be a non-transitory storage medium, including: a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk. a medium that can store program code, or It is a transient storage medium. In embodiments of the present disclosure, modules may be implemented in software for execution by various types of processors. For example, an identified executable code module can comprise one or more physical or logical blocks of computer instructions, which can be constructed, for example, as an object, procedure, or function. Nevertheless, the executable code of the identified modules need not be physically located together, but may include different instructions stored in different physicalities. When these instructions are logically combined, they constitute a module and achieve the specified purpose of the module. .
实际上，可执行代码模块可以是单条指令或者是许多条指令，并且甚至可以分布在多个不同的代码段上，分布在不同程序当中，以及跨越多个存储器设备分布。同样地，操作数据可以在模块内被识别，并且可以依照任何适当的形式实现并且被组织在任何适当类型的数据结构内。所述操作数据可以作为单个数据集被收集，或者可以分布在不同位置上(包括在不同存储设备上)，并且至少部分地可以仅作为电子信号存在于系统或网络上。In practice, the executable code module can be a single instruction or a plurality of instructions, and can even be distributed across multiple different code segments, distributed among different programs, and distributed across multiple memory devices. As such, operational data may be identified within the modules and may be implemented in any suitable form and organized within any suitable type of data structure. The operational data may be collected as a single data set, or may be distributed at different locations (including on different storage devices), and may at least partially exist as an electronic signal on a system or network.
在模块可以利用软件实现时，考虑到现有硬件工艺的水平，所以可以以软件实现的模块，在不考虑成本的情况下，本领域技术人员都可以搭建对应的硬件电路来实现对应的功能，所述硬件电路包括常规的超大规模集成(VLSI)电路或者门阵列以及诸如逻辑芯片、晶体管之类的现有半导体或者是其它分立的元件。模块还可以用可编程硬件设备，诸如现场可编程门阵列、可编程阵列逻辑、可编程逻辑设备等实现。When the module can be implemented by software, considering the level of the existing hardware process, the module can be implemented in software, and the technician can construct a corresponding hardware circuit to implement the corresponding function without considering the cost. The hardware circuitry includes conventional Very Large Scale Integration (VLSI) circuits or gate arrays as well as existing semiconductors such as logic chips, transistors, or other discrete components. The modules can also be implemented with programmable hardware devices such as field programmable gate arrays, programmable array logic, programmable logic devices, and the like.
在本公开各方法实施例中，所述各步骤的序号并不能用于限定各步骤的先后顺序，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，对各步骤的先后变化也在本公开的保护范围之内。In the method embodiments of the present disclosure, the sequence numbers of the steps are not used to limit the sequence of steps. For those skilled in the art, the steps of the steps are changed without any creative work. It is also within the scope of the disclosure.
以上所述是本公开的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本公开所述原理的前提下，还可以作出若干改进和润饰， 这些改进和润饰也应视为本公开的保护范围。The above is a preferred embodiment of the present disclosure, and it should be noted that those skilled in the art can make several improvements and refinements without departing from the principles of the present disclosure. These improvements and modifications should also be considered as protection of the present disclosure.
工业实用性Industrial applicability
本公开的数据反传方法和装置能够保证数据反传的可靠性，避免丢包，进而增强用户体验。 The data back-propagation method and apparatus of the present disclosure can ensure the reliability of data back-transmission, avoid packet loss, and thereby enhance the user experience.

Claims (16)

  1. 一种数据反传方法，应用于数据反传中的目标侧小区，包括：A data back-propagation method is applied to a target side cell in data back-transmission, including:
    接收源侧小区发送的反传数据；Receiving back-transmission data sent by the source-side cell;
    检测接收到的通用分组无线服务隧道协议(General Packet Radio Service Tunnelling Protocol)用户面GTP报文是否连续；Detecting whether the received General Packet Radio Service Tunneling Protocol (User Packet Radio Service Tunneling Protocol) user plane GTP packet is continuous;
    若所述GTP报文不连续，记录接收到第一个不连续的GTP报文的第一时间点，在之后接收到的不连续的GTP报文与所述第一时间点的时间间隔超过预设阈值时，向源侧小区发送反传状态报告，所述反传状态报告包括有丢失的GTP报文信息。If the GTP packet is not consecutive, the first time point of receiving the first discontinuous GTP packet is recorded, and the time interval between the discontinuous GTP packet received and the first time point is exceeded. When the threshold is set, a back-propagation status report is sent to the source-side cell, where the back-propagation status report includes the lost GTP message information.
  2. 根据权利要求1所述的数据反传方法，其中，所述接收源侧小区发送的反传数据之前还包括：The data back-propagation method according to claim 1, wherein the receiving the back-transmission data sent by the source-side cell further comprises:
    接收源侧小区发送的切换请求；Receiving a handover request sent by the source side cell;
    向源侧小区回复切换响应，并开启丢包检测。The switch response is returned to the source side cell, and packet loss detection is enabled.
  3. 根据权利要求2所述的数据反传方法，其中，所述向源侧小区发送反传状态报告之后还包括：The data back-propagation method according to claim 2, wherein the transmitting the back-propagation status report to the source-side cell further comprises:
    接收源侧小区发送的数据传输结束报文；Receiving a data transmission end message sent by the source side cell;
    检测当前时间点接收到的GTP报文是否连续；Check whether the GTP packets received at the current time point are consecutive;
    在当前时间点接收到的GTP报文连续时，停止丢包检测；在当前时间点接收到的GTP报文不连续时，将向源侧小区发送反传状态报告，所述反传状态报告包括有丢失的GTP报文信息。When the GTP packets received at the current time point are consecutive, the packet loss detection is stopped. When the GTP packets received at the current time point are not consecutive, the back-end status report is sent to the source-side cell, where the back-propagation status report includes There is missing GTP message information.
  4. 根据权利要求1-3中任一项所述的数据反传方法，其中，所述预设阈值的范围为2-5ms。The data back propagation method according to any one of claims 1 to 3, wherein the preset threshold ranges from 2 to 5 ms.
  5. 一种数据反传装置，应用于数据反传中的目标侧小区，其中，所述装置包括：A data back-transmission device is applied to a target-side cell in data back-transmission, wherein the device includes:
    接收模块，设置为接收源侧小区发送的反传数据； a receiving module, configured to receive back-transmission data sent by the source-side cell;
    检测模块，设置为检测接收到的GRPS隧道协议用户面GTP报文是否连续；The detecting module is configured to detect whether the received GTP message of the GRPS tunneling protocol user plane is continuous;
    处理模块，设置为若所述GTP报文不连续，记录接收到第一个不连续的GTP报文的第一时间点，在之后接收到的不连续的GTP报文与所述第一时间点的时间间隔超过预设阈值时，向源侧小区发送反传状态报告，所述反传状态报告包括有丢失的GTP报文信息。The processing module is configured to: if the GTP packet is not consecutive, record the first time point of receiving the first discontinuous GTP packet, and the discontinuous GTP packet received thereafter and the first time point When the time interval exceeds the preset threshold, the back-end status report is sent to the source-side cell, where the back-propagation status report includes the lost GTP message information.
  6. 根据权利要求5所述的数据反传装置，其中，The data backpropagation device according to claim 5, wherein
    所述接收模块还设置为接收源侧小区发送的切换请求；The receiving module is further configured to receive a handover request sent by the source side cell;
    所述处理模块还设置为向源侧小区回复切换响应，并开启丢包检测。The processing module is further configured to return a handover response to the source side cell, and enable packet loss detection.
  7. 根据权利要求6所述的数据反传装置，其中，The data backpropagation device according to claim 6, wherein
    所述接收模块还设置为接收源侧小区发送的数据传输结束报文；The receiving module is further configured to receive a data transmission end message sent by the source side cell;
    所述检测模块还设置为检测当前时间点接收到的GTP报文是否连续，The detecting module is further configured to detect whether the GTP packet received at the current time point is continuous.
    所述处理模块还设置为在当前时间点接收到的GTP报文连续时，停止丢包检测；在当前时间点接收到的GTP报文不连续时，将向源侧小区发送反传状态报告，所述反传状态报告包括有丢失的GTP报文信息。The processing module is further configured to stop the packet loss detection when the GTP packet received at the current time point is continuous; and send the back propagation status report to the source cell when the GTP packet received at the current time point is not continuous. The backhaul status report includes missing GTP message information.
  8. 一种数据反传方法，应用于数据反传中的源侧小区，所述包括：A data back-propagation method is applied to a source-side cell in data back-transmission, and the method includes:
    向目标侧小区发送反传数据；Sending back data to the target side cell;
    接收目标侧小区返回的反传状态报告，所述反传状态报告包括有丢失的GTP用户面GTP报文信息；Receiving a back-propagation status report returned by the target-side cell, where the back-propagation status report includes the GTP user plane GTP message information that is lost;
    检测对应的终端信息是否删除，若未删除，根据所述丢失的GTP报文信息重新发送丢失的GTP报文。Detecting whether the corresponding terminal information is deleted. If not, the lost GTP packet is resent according to the lost GTP packet information.
  9. 根据权利要求8所述的数据反传方法，其中，所述向目标侧小区发送反传数据之前还包括：The data back-propagation method according to claim 8, wherein the transmitting the back-transmission data to the target-side cell further comprises:
    接收终端发送的测量报告；Receiving a measurement report sent by the terminal;
    向目标侧小区发送切换请求； Sending a handover request to the target side cell;
    接收目标侧小区返回的切换响应。Receiving a handover response returned by the target side cell.
  10. 根据权利要求9所述的数据反传方法，其中，所述重新发送丢失的GTP报文之后还包括：The method of data back-propagation according to claim 9, wherein the resending the lost GTP message further comprises:
    接收所述终端上报的重配完成消息；Receiving a reconfiguration complete message reported by the terminal;
    停止发送反传数据，并向目标侧小区发送数据传输结束报文。The transmission of the backhaul data is stopped, and the data transmission end message is sent to the target side cell.
  11. 一种数据反传装置，应用于数据反传中的源侧小区，包括：A data back-transmission device is applied to a source-side cell in data back-transmission, including:
    发送模块，设置为向目标侧小区发送反传数据；a sending module, configured to send back data to the target side cell;
    接收模块，设置为接收目标侧小区返回的反传状态报告，所述反传状态报告包括有丢失的GTP用户面GTP报文信息；The receiving module is configured to receive a back-propagation status report returned by the target-side cell, where the back-propagation status report includes the GTP user plane GTP message information that is lost;
    处理模块，设置为检测对应的终端信息是否删除，若未删除，根据所述丢失的GTP报文信息重新发送丢失的GTP报文。The processing module is configured to detect whether the corresponding terminal information is deleted. If not, the lost GTP packet is resent according to the lost GTP packet information.
  12. 根据权利要求11所述的数据反传装置，其中，The data backpropagation device according to claim 11, wherein
    所述接收模块还设置为接收终端发送的测量报告；The receiving module is further configured to receive a measurement report sent by the terminal;
    所述发送模块还设置为向目标侧小区发送切换请求；The sending module is further configured to send a handover request to the target side cell;
    所述接收模块还设置为接收目标侧小区返回的切换响应。The receiving module is further configured to receive a handover response returned by the target side cell.
  13. 根据权利要求12所述的数据反传装置，其中，The data backpropagation apparatus according to claim 12, wherein
    所述接收模块还设置为接收所述终端上报的重配完成消息；The receiving module is further configured to receive a reconfiguration complete message reported by the terminal;
    所述发送模块还设置为停止发送反传数据，并向目标侧小区发送数据传输结束报文。The sending module is further configured to stop sending back data and send a data transmission end message to the target side cell.
  14. 一种非暂态存储介质，存储有计算机可执行指令，所述计算机可执行指令设置为执行权利要求1-4，8-10任一项所述的数据反传方法。A non-transitory storage medium storing computer executable instructions, the computer executable instructions being arranged to perform the data backpropagation method of any one of claims 1-4, 8-10.
  15. 一种计算机程序产品，所述计算机程序产品包括存储在非暂态计算机可读存储介质上的计算机程序，所述计算机程序包括程序指令，当所述程序指令 被计算机执行时，使所述计算机执行权利要求1-4，8-10任一项所述的数据反传方法。A computer program product comprising a computer program stored on a non-transitory computer readable storage medium, the computer program comprising program instructions, when the program instructions When executed by a computer, the computer is caused to perform the data back-propagation method of any one of claims 1-4, 8-10.
  16. 一种电子设备，包括至少一个处理器和与所述至少一个处理器通信连接的存储器，所述存储器用于存储可被所述至少一个处理器执行的指令，所述指令被所述至少一个处理器执行时，使所述至少一个处理器执行权利要求1-4，8-10任一项所述的数据反传方法。 An electronic device comprising at least one processor and a memory communicatively coupled to the at least one processor, the memory for storing instructions executable by the at least one processor, the instructions being processed by the at least one When executed, the at least one processor is caused to perform the data back-propagation method according to any one of claims 1-4, 8-10.
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