WO2017049951A1 - 数据传输的方法、装置及系统 - Google Patents

数据传输的方法、装置及系统 Download PDF

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Publication number
WO2017049951A1
WO2017049951A1 PCT/CN2016/084317 CN2016084317W WO2017049951A1 WO 2017049951 A1 WO2017049951 A1 WO 2017049951A1 CN 2016084317 W CN2016084317 W CN 2016084317W WO 2017049951 A1 WO2017049951 A1 WO 2017049951A1
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Prior art keywords
reordering
self
ignoring function
ignoring
function
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PCT/CN2016/084317
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English (en)
French (fr)
Inventor
吴昱民
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中兴通讯股份有限公司
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Publication of WO2017049951A1 publication Critical patent/WO2017049951A1/zh

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

Definitions

  • the present application relates to, but is not limited to, the field of communications, and in particular, to a method, device and system for data transmission.
  • the user equipment in the multi-layer network coverage environment, can use the communication resources of the primary eNB (MeNB) and the secondary eNB (SeNB for short). And inter-base station aggregation (inter-eNB aggregation).
  • a plurality of radio bearers (RBs) of the UE may be respectively carried by a Secondary Cell Group (SCG) and a Master Cell Group (MCG).
  • the RBs that are separated into the SeNB may include a Data Radio Bearer (DRB) and/or a Signaling Radio Bearer (SRB).
  • DRB Data Radio Bearer
  • SRB Signaling Radio Bearer
  • FIG. 1 and FIG. 2 there is a dual connectivity architecture between the UE and the MeNB and the SeNB.
  • the packet data convergence protocol Packet Data Convergence Protocol, the same bearer of the UE
  • the abbreviation (PDCP) data is received by both the SCG and the MCG, and therefore needs to be reordered at the PDCP layer of the UE.
  • PDCP sequence number SN, Sequence Number
  • reordering timer reordering
  • the UE ignores the PDCP SN and delivers the PDCP packets in the subsequent reordering window to the upper layer in order.
  • the packets of Nos. 5 and 6 are received. Since the MeNB and the SeNB each send the PDCP packet to the UE in sequence, the UE can determine that the No. 4 packet is lost, so that the No. 4 packet can be directly ignored before the reordering timer expires. Such a UE itself judges the loss of a packet and ignores the behavior of a reordering gap, which may be called a reordering gap self-ignoring behavior.
  • the PDCP/RLC (Radio Link Control)/MAC (Media Access Control) layer of the UE needs to perform corresponding processing, which is a secondary cell change. (SCG change).
  • the MAC entity of the MCG and SCG of the split bearer is reset (MAC reset).
  • the RLC entity of the split bearer's SCG re-establishment (RLC re-establishment), and the data packets in the RLC are delivered to the PDCP layer in order. Since some data packets have not been received at the RLC layer, the data packets received by the PDCP layer will generate a reordering gap.
  • the PDCP eNB of the split bearer triggers the PDCP STATUS REPORT to report the received and unreceived PDCP SN to the MeNB.
  • the PDCP layer of the UE waits for the unreceived packet transmission to perform separate bearer. PDCP reordering, this PDCP process is called PDCP Data Recovery.
  • the MeNB After receiving the PDCP STATUS REPORT, the MeNB triggers a retransmission and retransmits the packet that the UE does not receive to the UE.
  • the network side retransmits the data packet to the UE according to the PDCP status report reported by the UE, and if the UE also adopts the reordering self-ignoring behavior, the UE ignores the retransmission packet before receiving the retransmission packet.
  • the data packet causes the problem that the retransmitted data cannot be correctly received by the UE, and no effective solution has been proposed yet.
  • the embodiment of the present invention provides a data transmission method, apparatus, and system, to at least solve the related art, in the related art, the network side retransmits the data packet to the UE according to the PDCP status report reported by the UE when the SCG change occurs, if the UE is at this time
  • the reordering self-ignoring behavior is also adopted, which causes the UE to ignore the data packet before receiving the retransmission packet, resulting in the problem that the retransmission data cannot be correctly received by the UE.
  • a data transmission method includes: receiving a reordering self-ignoring function response message reported by a user equipment (UE); and determining, according to the reordering self-ignoring function response message, whether the UE is Have reordering and self-ignoring function; when the judgment result is yes, if necessary
  • the UE stops the reordering self-ignoring function, and then configures a reordering self-ignoring function stop instruction for stopping the UE reordering self-ignoring function; and sends a reordering self-ignoring function stopping instruction to the UE.
  • the method before receiving the reordering self-ignoring function response message reported by the UE, the method further includes: sending a reordering self-ignoring function request message to the UE, and reordering the self-ignoring function request message, and indicating the UE feedback Is there a reordering self-ignoring feature?
  • the method further includes: when the determining result is yes, if the UE is required to start the reordering self-ignoring function, the configuration is used.
  • the reordering self-ignoring function start instruction of the reordering self-ignoring function of the UE is started; and the reordering self-ignoring function starting instruction is sent to the UE.
  • a data transmission method including: sending a reordering self-ignoring function response message to a network side, where the reordering self-ignoring function response message is used to indicate a network Side, whether the current UE has the reordering self-ignoring function; when the stop reordering self-ignoring function needs to be executed, the reordering self-ignoring function stopping instruction sent by the receiving network side is received; the reordering self-ignoring function is stopped according to the reordering self-ignoring function stopping instruction .
  • the method before sending the reordering self-ignoring function response message to the network side, the method further includes: receiving a reordering self-ignoring function request message sent by the network side, where the reordering self-ignoring function request message is used by Indicates whether the UE feedback has a reordering self-ignoring function.
  • the method further includes: when the startup reordering self-ignoring function needs to be performed, receiving a reordering self-ignoring function startup instruction sent by the network side; and starting the reordering self-ignoring function according to the reordering self-ignoring function startup instruction.
  • a method for data transmission including: stopping the reordering self-ignoring function according to the state of the PDCP; determining whether there are still unreceived PDCP data packets to be retransmitted; In the case where the judgment result is negative, the reordering self-ignoring function is started.
  • the step of stopping the reordering self-ignoring function according to the state of the PDCP includes: reporting a PDCP STATUS REPORT to the network side, where the PDCP STATUS REPORT is used to indicate to the network side that the UE side receives Receive status of the PDCP packet; triggers the PDCP data recovery process.
  • the data packet will be retransmitted, including: determining whether the data packet with the smallest sequence number in the reordering window according to the PDCP STATUS REPORT is the newly received data packet after the lost PDCP data packet reported in the PDCP STATUS REPORT; In case of, start the reordering self-ignoring function.
  • the step of stopping the reordering self-ignoring function includes: determining whether the sequence number corresponding to the idle location in the reordering window is not in the PDCP STATUS REPORT The serial number PDCP SN of the received PDCP packet; when the judgment result is YES, the reordering self-ignoring function is stopped.
  • the step of stopping the reordering self-ignoring function includes: determining, in the reordering window, according to the sequence number of the PDCP packet that is not received in the PDCP STATUS REPORT Whether there is a corresponding idle position; when the judgment result is YES, the reordering self-ignoring function is stopped.
  • an apparatus for data transmission including:
  • a receiving module configured to receive a reordering self-ignoring function response message reported by the UE
  • the judging module is configured to determine whether the UE has the reordering self-ignoring function according to the reordering self-ignoring function response message;
  • the configuration module is configured to: when the judgment result is yes, if the UE needs to stop the reordering self-ignoring function, configure a reordering self-ignoring function stop instruction for stopping the UE reordering self-ignoring function;
  • the sending module is configured to send a reordering self-ignoring function stop instruction to the UE.
  • the device further includes: a message sending module, configured to send a reordering self-ignoring function request message to the UE, where the receiving module receives the reordering self-ignoring function response message reported by the UE, where the reordering self The function request message is ignored to indicate whether the UE feedback has the reordering self-ignoring function.
  • a message sending module configured to send a reordering self-ignoring function request message to the UE, where the receiving module receives the reordering self-ignoring function response message reported by the UE, where the reordering self The function request message is ignored to indicate whether the UE feedback has the reordering self-ignoring function.
  • the device further includes:
  • the instruction configuration module is configured to: after the determining module determines, according to the reordering self-ignoring function response message, whether the UE has the reordering self-ignoring function, and when the determining result is yes, if the UE needs to start the reordering self-ignoring function, the configuration is used to: The reordering self-ignoring function start instruction of the reordering self-ignoring function of the UE is started;
  • the instruction sending module is configured to send a reordering self-ignoring function startup instruction to the UE.
  • another apparatus for data transmission including:
  • the message sending module is configured to send a reordering self-ignoring function response message to the network side, where the reordering self-ignoring function response message is used to indicate whether the current UE has the reordering self-ignoring function;
  • the first instruction receiving module is configured to receive a reordering self-ignoring function stop instruction sent by the network side when the stop reordering self-ignoring function needs to be performed;
  • the first instruction execution module is set to stop the reordering self-ignoring function according to the reordering self-ignoring function stop instruction.
  • the device further includes: a message receiving module, configured to receive a reordering self-ignoring function request message sent by the network side before the message sending module sends the reordering self-ignoring function response message to the network side, where the message sending module sends the reordering self-ignoring function request message to the network side, where The reordering self-ignoring function request message is used to indicate whether the UE feedback has a reordering self-ignoring function.
  • a message receiving module configured to receive a reordering self-ignoring function request message sent by the network side before the message sending module sends the reordering self-ignoring function response message to the network side, where the message sending module sends the reordering self-ignoring function request message to the network side, where The reordering self-ignoring function request message is used to indicate whether the UE feedback has a reordering self-ignoring function.
  • the device further includes:
  • the second instruction receiving module is configured to receive a reordering self-ignoring function starting instruction sent by the network side when the startup reordering self-ignoring function needs to be performed;
  • the second instruction execution module is set to start the reordering self-ignoring function according to the reordering self-ignoring function startup instruction.
  • another apparatus for data transmission including:
  • the first control module is configured to stop the reordering self-ignoring function according to the state of the PDCP;
  • the detecting module is configured to determine whether there are still unreceived PDCP data packets to be retransmitted;
  • the second control module is configured to start the reordering self-ignoring function if the determination result is no.
  • the first control module includes:
  • a sending unit configured to report a PDCP STATUS REPORT to the network side, where the PDCP STATUS REPORT is used to indicate to the network side that the receiving state of the PDCP data packet is received on the UE side;
  • the first control unit is configured to trigger a PDCP data recovery process.
  • the detecting module comprises:
  • the detecting unit is configured to determine, according to the PDCP STATUS REPORT, whether the data packet with the smallest sequence number in the reordering window is the newly received data packet after the lost PDCP data packet reported in the PDCP STATUS REPORT, before starting the reordering self-ignoring function;
  • the second control unit is configured to start the reordering self-ignoring function if the determination result is YES.
  • the first control module includes:
  • the first determining unit is configured to determine whether the sequence number corresponding to the idle location in the reordering window is the sequence number SN of the PDCP packet that is not received in the PDCP STATUS REPORT;
  • the third control unit is configured to keep the reordering self-ignoring function from being stopped when the determination result is YES.
  • the first control module includes:
  • a second determining unit configured to determine, according to a sequence number of the PDCP packet that is not received in the PDCP STATUS REPORT, whether a corresponding idle location exists in the reordering window;
  • the fourth control unit is configured to keep the reordering self-ignoring function from being stopped when the determination result is YES.
  • a system for data transmission including: a base station and a user equipment (UE), the base station is in communication connection with the UE, wherein the base station is the foregoing fourth aspect according to an embodiment of the present invention, A data transmission device is provided; the UE is another data transmission device provided according to the fifth aspect of the embodiment of the present invention, or another data transmission device provided by the sixth aspect of the embodiment of the present invention.
  • UE user equipment
  • an embodiment of the present invention further provides a computer readable storage medium storing computer executable instructions, which are implemented to implement the above data transmission method provided by the first aspect of the embodiments of the present invention.
  • an embodiment of the present invention further provides a computer readable storage medium storing computer executable instructions, which are implemented when the computer executable instructions are executed to implement the data transmission method provided by the second aspect of the embodiments of the present invention.
  • an embodiment of the present invention further provides a computer readable storage medium, where a computer can be stored.
  • the method of performing the above data transmission provided by the third aspect of the embodiments of the present invention is implemented when the computer executable instructions are executed.
  • the embodiment of the present invention adopts a reordering self-ignoring function response message reported by the receiving UE, and determines whether the UE has a reordering self-ignoring function according to the reordering self-ignoring function response message; when the judgment result is yes, if the UE needs to stop heavy
  • the sort self-ignoring function configures a reordering self-ignoring function stop instruction for stopping the UE reordering self-ignoring function; and sends a reordering self-ignoring function stopping instruction to the UE, thus solving the problem that the retransmitted data cannot be correctly received by the UE.
  • the accuracy of receiving retransmission data is improved, and the waste of PDCP data retransmission is avoided.
  • FIG. 1 is a schematic structural view of a double connection in the related art
  • FIG. 3 is a schematic diagram of receiving a PDCP data packet by a reordering window on a UE side in the related art
  • FIG. 5 is a flowchart of a method for data transmission according to Embodiment 2 of the present invention.
  • FIG. 6 is a schematic flowchart diagram of a method for data transmission according to an embodiment of the present application.
  • FIG. 7 is a flowchart of a method of data transmission according to Embodiment 3 of the present invention.
  • FIG. 8 is a flowchart of another method for data transmission according to Embodiment 3 of the present invention.
  • FIG. 9 is a structural block diagram of an apparatus for data transmission according to Embodiment 4 of the present invention.
  • FIG. 10 is a block diagram showing an optional structure of an apparatus for data transmission according to Embodiment 4 of the present invention.
  • FIG. 11 is a block diagram showing an optional structure of an apparatus for data transmission according to Embodiment 4 of the present invention.
  • FIG. 12 is a structural block diagram of an apparatus for data transmission according to Embodiment 5 of the present invention.
  • FIG. 13 is a block diagram showing an optional structure of an apparatus for data transmission according to Embodiment 5 of the present invention.
  • FIG. 14 is a block diagram showing an optional structure of an apparatus for data transmission according to Embodiment 5 of the present invention.
  • Figure 15 is a block diagram showing the structure of an apparatus for data transmission according to Embodiment 6 of the present invention.
  • FIG. 16 is a block diagram showing an optional structure of an apparatus for data transmission according to Embodiment 6 of the present invention.
  • FIG. 17 is a block diagram showing an optional structure of an apparatus for data transmission according to Embodiment 6 of the present invention.
  • FIG. 18 is a block diagram showing an optional structure of an apparatus for data transmission according to Embodiment 6 of the present invention.
  • Figure 19 is a block diagram showing an alternative configuration of an apparatus for data transmission according to Embodiment 6 of the present invention.
  • Figure 20 is a block diagram showing the structure of a system for data transmission according to a seventh embodiment of the present invention.
  • the method for data transmission provided by the embodiment of the present application can be applied to a multi-layer network coverage environment, that is, an environment covered by a multi-layer network composed of a primary base station and a secondary base station, where a primary base station (MeNB)
  • MeNB primary base station
  • a non-ideal data/signaling interface Xn interface is used between the sub-base station (Secondary eNB and the SeNB).
  • the user equipment User Equipment, UE for short
  • the MeNB may transfer part or all of the data/signaling of the UE to the SeNB to obtain the service provided by the SeNB according to signal strength or load balancing, etc., thereby implementing
  • the UE can simultaneously use the resources of the MeNB and the SeNB, and the inter-base station aggregation (inter-eNB aggregation).
  • a plurality of radio bearers (RBs) of the UE may be respectively carried by a Secondary Cell Group (SCG) and a Master Cell Group (MCG).
  • the RBs in which the SeNBs are separated may include a Data Radio Bearer (DRB) and/or a Signaling Radio Bearer (SRB).
  • DRB Data Radio Bearer
  • SRB Signaling Radio Bearer
  • reordering needs to be performed at the PDCP layer of the UE.
  • the sequence number of the PDCP (Sequence Number, referred to as SN) that is not received in the (reordering window) is equivalent to generating a reordering gap in the reordering window.
  • the UE will start a reordering timer. When the reordering timer expires, the UE ignores the PDCP SN, and delivers the PDCP data packets in the subsequent reordering window to the upper layer in order.
  • the MeNB and the SeNB each send the PDCP packet to the UE in sequence, it is assumed that the UE can determine that the received data guarantee has a packet loss phenomenon, and then directly ignore the lost data packet before the reordering timer expires. Such a UE itself judges the loss of a packet and ignores the behavior of a reordering gap, which may be called a reordering gap self-ignoring behavior.
  • the SCG of the UE is switched or changed, the UE's PDCP/RLC/MAC needs to be processed accordingly, and the process is a SCG change.
  • the MAC entity of the MCG and SCG of the split bearer is reset (MAC reset).
  • the RLC entity of the split bearer's SCG re-establishment (RLC re-establishment), and the data packets in the RLC are delivered to the PDCP layer in order. Since some data packets have not been received at the RLC layer, the data packets received by the PDCP layer will generate a reordering gap.
  • the PDCP eNB of the split bearer triggers the PDCP STATUS REPORT to report the received and unreceived PDCP SN to the MeNB.
  • the PDCP layer of the UE waits for the unreceived packet transmission to perform the PDCP of the split bearer. Sorting, the PDCP process is called PDCP Data Recovery.
  • the MeNB After receiving the PDCP STATUS REPORT, the MeNB triggers a retransmission and retransmits the packet that the UE does not receive to the UE.
  • FIG. 4 is a method according to the present invention.
  • a flowchart of a method for data transmission of an embodiment, as shown in FIG. 4, on the base station side, the method includes the following steps:
  • Step S402 receiving a reordering self-ignoring function response message reported by the UE;
  • Step S404 determining, according to the reordering self-ignoring function response message, whether the UE has a reordering self-ignoring function
  • Step S406 when the determination result is yes, if the UE is required to stop the reordering self-ignoring function, configuring a reordering self-ignoring function stopping instruction for stopping the UE reordering self-ignoring function;
  • Step S408 sending a reordering self-ignoring function stop instruction to the UE.
  • the method for data transmission provided by the embodiment of the present application can be applied to a multi-layer network coverage environment.
  • the primary base station (Master eNB, referred to as MeNB for short)
  • the network side of the secondary base station (Secondary eNB, SeNB for short) is used as an example.
  • the base station on the network side in the embodiment of the present application includes but is not limited to: a macro base station, a micro base station, a wireless access point, and the like. Wireless communication device.
  • the network side receives the reordering self-ignoring function response message reported by the user equipment (User Equipment, UE for short), and obtains whether the current UE has the reordering self-ignoring function.
  • the UE has the reordering self-ignoring function
  • the reordering self-ignoring function stop instruction is configured to instruct the UE to stop performing the reordering self-ignoring function, thereby stopping the reordering self-ignoring function.
  • the UE stops the execution of the reordering self-ignoring function according to the reordering self-ignoring function stop instruction.
  • the reordering self-ignoring function response message reported by the receiving UE is used; and the reordering self-ignoring function response message is used to determine whether the UE has the reordering self-ignoring function; when the judgment result is yes, if the UE is required
  • the reordering self-ignoring function is stopped, and the reordering self-ignoring function stopping instruction for stopping the UE reordering self-ignoring function is configured; the reordering self-ignoring function stopping instruction is sent to the UE, and the problem that the retransmission data cannot be correctly received by the UE is solved.
  • the accuracy of receiving retransmission data is improved, and the waste of PDCP data retransmission is avoided.
  • the method for data transmission provided in the embodiment of the present application may further include:
  • Step S401 Send a reordering self-ignoring function request message to the UE, where the reordering self-ignoring function request message is used to indicate whether the UE feedback has a reordering self-ignoring function.
  • the network side sends a reordering self-ignoring function request message to the UE, and may send the message to the UE side in the form of a UE Capability Enquiry, so that the UE is in the UE.
  • the device After receiving the user equipment performance query request, the device returns a reordering self-ignoring function response message according to whether it has the reordering self-ignoring function.
  • the method for data transmission provided in the embodiment of the present application may further include:
  • Step S403 when the determination result is yes, if the UE is required to start the reordering self-ignoring function, Configuring a reorder self-ignoring function start instruction for starting the reordering self-ignoring function of the UE;
  • Step S405 sending a reordering self-ignoring function start instruction to the UE.
  • the reordering self-ignoring function start instruction is sent to the UE, so that the UE reorders the window for the PDCP.
  • the sequence number of the PDCP packet (Sequence Number, referred to as SN) that is not received in the (reordering window) is equivalent to generating a reordering gap in the reordering window, and the UE starts a reordering timer.
  • the UE ignores the PDCP SN, and delivers the PDCP packets in the subsequent reordering window to the upper layer in order, thereby ensuring data transmission efficiency between the network side and the UE.
  • FIG. 5 is a flowchart of a method for data transmission according to an embodiment of the present invention. As shown in 5, the method includes the following steps:
  • Step S502 Send a reordering self-ignoring function response message to the network side, where the reordering self-ignoring function response message is used to indicate whether the current UE has the reordering self-ignoring function;
  • Step S504 when it is required to perform the stop reordering self-ignoring function, receiving a reordering self-ignoring function stopping instruction sent by the network side;
  • Step S506 stopping the reordering self-ignoring function according to the reordering self-ignoring function stop instruction.
  • the UE sends a reordering self-ignoring function response message to the network side, which is used to indicate whether the current UE on the network side has the reordering self-ignoring function; secondly, when the UE needs When the stop reordering self-ignoring function is executed, the UE receives the reordering self-ignoring function stop instruction sent by the network side; finally, the UE stops the reordering self-ignoring function according to the reordering self-ignoring function stopping instruction.
  • the user equipment side sends a reordering self-ignoring function response message to the network side, where the reordering self-ignoring function response message is used to indicate whether the current UE has the reordering self-ignoring function.
  • the stop reordering self-ignoring function needs to be executed, the reordering self-ignoring function stop instruction sent by the receiving network side is received; the self-ignoring function stops the instruction stop according to the reordering function.
  • the reordering self-ignoring function solves the problem that the retransmitted data cannot be correctly received by the UE, thereby improving the accuracy of receiving retransmission data and avoiding the waste of PDCP data retransmission.
  • the method for data transmission provided by the embodiment of the present application may further include:
  • Step S501 Receive a reordering self-ignoring function request message sent by the network side, where the reordering self-ignoring function request message is used to indicate whether the UE feedback has a reordering self-ignoring function.
  • the reordering self-ignoring function request message is sent by the network side
  • the reordering self-ignoring function request message is received on the UE side.
  • Step S508 when the startup reordering self-ignoring function needs to be performed, receiving a reordering self-ignoring function startup instruction sent by the network side;
  • Step S510 starting the reordering self-ignoring function according to the reordering self-ignoring function startup instruction.
  • the UE when the network side needs to start the reordering self-ignoring function on the UE side, the UE receives the reordering self-ignoring function starting instruction sent by the network side, and starts the instruction according to the reordering self-ignoring function starting instruction. Sort self-ignoring function.
  • FIG. 6 is A flow chart of another method for data transmission provided by the embodiment of the present application is as shown in FIG. 6.
  • the method for implementing data transmission provided by the embodiment of the present application is implemented by the base station side in three stages as follows:
  • Phase 1 The capability reporting phase, which includes the following steps:
  • Step 1 The network side requests UE capability information, such as UE Capability Enquiry in FIG. 6;
  • Step 2 The UE reports the re-sorting self-ignoring capability information, such as the self-ignoring indication in the UE Capability Information in FIG. 6 .
  • Phase 2 Start reordering and ignore, this phase includes the following steps:
  • Step 3 The network side configures the UE to start the reordering self-ignoring function according to whether the UE has the reordering and self-ignoring function, and configures the UE to start the reordering self-ignoring function, as shown in the RRC Connection Reconfiguration in Figure 6. Ignore startup instructions (self-ignoring enable Indication);
  • Step 4 According to the configuration in step 3, the UE starts the reordering self-ignoring function.
  • Phase 3 Stop reordering and ignore, this phase includes the following steps:
  • Step 5 The UE starts the reordering self-ignoring function, and the network side can configure the UE to stop the reordering self-ignoring function when initiating the SCG change or the handover, such as the self-ignoring stop indication in the RRC Connection Reconfiguration in FIG. 6 (self-ignoring) Disable indication);
  • Step 6 According to the configuration in step 5, the UE stops the reordering self-ignoring function.
  • the network side initiates control on the data transmission to the UE according to whether the UE has the reordering and self-ignoring function, especially after the cell change or cell handover in which the UE is located, After the UE reports the PDCP STATUS REPORT, the network side retransmits the data packet to the UE. If the UE also uses the reordering self-ignoring behavior, the UE will ignore the packet before receiving the retransmission packet.
  • the data packet causes the retransmission data to be incorrectly received by the UE, that is, the UE side may repeatedly receive the data packet that the network side has not received before transmitting according to the PDCP status report.
  • the network side After the SCG change or the cell handover of the UE is initiated, the network side generates a reordering self-ignoring function stop command for configuring the UE to stop the reordering self-ignoring function, so as to control the UE to stop automatically ignoring the PDCP data packet from the network side, and save the process.
  • the process of reporting the PDCP status report on the UE side improves the PDCP data transmission efficiency.
  • the data transmission method provided by the embodiment of the present application receives the reordering self-ignoring function response message reported by the UE, and determines whether the UE has the reordering self-ignoring function according to the reordering self-ignoring function response message;
  • the result is that, when initiating the change of the SCG where the UE is located, configuring a reordering self-ignoring function stop instruction for stopping the UE reordering self-ignoring function; sending a reordering self-ignoring function stopping instruction to the UE, and solving the network side in the SCG change
  • the data packet is retransmitted to the UE according to the PDCP status report reported by the UE.
  • the UE will ignore the data packet before receiving the retransmission packet, resulting in heavy
  • the problem that the data cannot be correctly received by the UE achieves the effect of avoiding the waste of PDCP data retransmission.
  • FIG. 7 is data according to the embodiment.
  • a flowchart of a method for transmitting, as shown in FIG. 7, on the user equipment side, the method includes the following steps:
  • Step S602 stopping the reordering self-ignoring function according to the state of the PDCP
  • Step S604 determining whether there are still unreceived PDCP data packets to be retransmitted
  • step S606 if the determination result is no, the reordering self-ignoring function is started.
  • the data transmission method provided by the embodiment of the present application may be applicable to a multi-layer network coverage environment.
  • the user equipment side includes but is not limited to: a data card, a mobile phone, a notebook computer, or an individual.
  • Various terminals such as a computer, a tablet, a personal digital assistant, a Bluetooth, and the like, and a plurality of wireless communication devices, such as a relay, a remote device, and a wireless access point.
  • the base station on the network side in the embodiment of the present application includes but is not limited to: Various wireless communication devices such as a macro base station, a micro base station, and a wireless access point.
  • Step S602 is triggered when the UE performs data reset, that is, when PDCP Data Recovery is reported, when the packet data aggregation status report (PDCP STATUS REPORT) is reported to the network side, the reordering self-ignoring function is stopped.
  • Step S602 can include:
  • Step 1 Reporting a PDCP STATUS REPORT to the network side, where the PDCP STATUS REPORT is used to indicate to the network side that the receiving state of the PDCP data packet is received on the UE side;
  • Step 2 triggering the PDCP data recovery process.
  • the receiving status of the PDCP STATUS REPORT for indicating to the network side that the PDCP data packet is received on the UE side may include: received and unreceived PDCP data packets.
  • the reordering self-ignoring function is stopped according to the state of the PDCP; whether the unreceived PDCP data packet is retransmitted is determined; if the judgment result is negative, the reordering is started. Ignoring the function solves the problem that the retransmitted data cannot be correctly received by the UE, thereby improving the accuracy of receiving retransmission data and avoiding the waste of PDCP data retransmission.
  • step S604 may include:
  • Step 1 determine whether the data packet with the smallest sequence number in the reordering window is the newly received data packet after the lost PDCP data packet reported in the PDCP STATUS REPORT;
  • Step 2 in the case that the judgment result is YES, the reordering self-ignoring function is started.
  • the user equipment side when the user equipment side reports the PDCP STATUS REPORT to the network side, it triggers the stop reordering self-ignoring function. Further, the user equipment side performs a self-test, that is, detects the data with the smallest serial number in the reordering window according to the reported PDCP STATUS REPORT.
  • the packet is a packet that is re-received after the lost PDCP packet reported in the PDCP STATUS REPORT.
  • the judgment result is yes, the UE starts the reordering self-ignoring function.
  • the method for data transmission provided by the embodiment of the present application, on the UE side, by reporting the PDCP STATUS REPORT to the network side, the UE triggers the stop reordering self-ignoring function, thereby solving the problem that the retransmission data cannot be correctly received by the UE, and further It achieves the effect of improving the accuracy of retransmission data reception and avoiding the waste of PDCP data retransmission.
  • the data packet with the smallest sequence number in the reordering window of the current UE is the newly received PDCP data packet after all PDCP data packets in the reported PDCP STATUS REPORT, so in order to avoid packet loss, the UE controls to start.
  • the reordering self-ignoring function ensures data transmission efficiency between the UE and the network side.
  • Step 1 in step S602 when reporting a packet data convergence status report (PDCP STATUS REPORT) to the network side, the steps of stopping the reordering self-ignoring function include:
  • Step 11 determining whether the sequence number corresponding to the idle location in the reordering window is the sequence number SN of the PDCP packet that is not received in the PDCP STATUS REPORT;
  • Step 12 When the judgment result is YES, the reordering self-ignoring function is stopped.
  • Step11 and Step12 if the reordering gap in the reordering window of the UE is a PDCP SN that is not received in the PDCP STATUS REPORT, the UE keeps stopping reordering from being ignored.
  • the PDCP SN of the PDCP packet that is not received is the PDCP packet of sequence number 3 and sequence number 4. If the reordering gap in the reordering window of the UE at this time also has the sequence number 3 And the PDCP packet of sequence number 4, at which time the UE keeps stopping reordering and ignoring.
  • Step 1 in step S602 when reporting a packet data convergence status report (PDCP STATUS REPORT) to the network side, the step of stopping the reordering self-ignoring function includes:
  • Step 13 determining whether there is a corresponding idle location in the reordering window according to the sequence number of the PDCP packet that is not received in the PDCP STATUS REPORT;
  • Step 14 when the judgment result is YES, the stop reordering self-ignoring function is kept.
  • Step 13 and Step 14 there are another condition in Step 13 and Step 14 that can implement the stop reordering self-ignoring function. That is, it is assumed that the serial number of the PDCP packet that is not received in the PDCP STATUS REPORT may be: the PDCP data packet of sequence number 6, sequence number 7, and sequence number 8, and there is no sequence number 6, sequence number 7, and sequence number 8 in the reordering window of the UE.
  • the PDCP data packet indicates that the UE has the possibility of losing the PDCP data packet of sequence number 6, sequence number 7, and sequence number 8. To avoid packet loss, the UE side first stops the reordering self-ignoring function.
  • FIG. 8 is a flowchart of another method for data transmission according to this embodiment. As shown in FIG. 8 , in combination with the foregoing steps S602 to S606, when implementing the data transmission method provided by the embodiment of the present application, the user equipment side implements the data transmission method provided by the embodiment of the present application by the following steps:
  • Step 1 When the UE triggers PDCP Data Recovery, the UE stops reordering self-ignoring behavior. At this time, the UE also triggers reporting PDCP STATUS REPORT; as shown in FIG. 8, 1/2/5 is the received PDCP SN, and 3/4/6/7/8/9 is the PDCP SN that is not received; A reordering gap is generated in the PDCP reordering window (as shown in Figure 3, 3/4);
  • Step 2 If the reordering gap in the reordering window of the UE is a PDCP SN that is not received in the PDCP STATUS REPORT, the UE keeps stopping reordering and ignoring; the UE may also judge the data packet 6/7/8/9 Received in subsequent transmissions, so the UE keeps stopping reordering and ignoring before receiving the data in the reordering window;
  • Step 3 When the data packet of the lower boundary (lowest SN) of the reordering window of the UE is a subsequent packet (such as the 11th packet) of the lost PDCP data packet reported in the PDCP STATUS REPORT, the UE may determine the PDCP STATUS REPORT The lost PDCP packet reported in the middle will no longer generate a reordering gap, so that the UE can initiate the reordering self-ignoring behavior.
  • the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course It can be done through hardware, but in many cases the former is a better implementation.
  • the technical solution of the present application which is essential or contributes to the related art, may be embodied in the form of a software product stored in a storage medium (such as ROM/RAM, disk, CD-ROM).
  • the instructions include a number of instructions for causing a terminal device (which may be a cell phone, a computer, a server, or a network device, etc.) to perform the methods described in various embodiments of the present application.
  • a device for data transmission is further provided, which is used to implement the foregoing embodiments and optional embodiments, and details are not described herein.
  • the term “module” may implement a combination of software and/or hardware of a predetermined function.
  • the devices described in the following embodiments are optionally implemented in software, hardware, or a combination of software and hardware, is also possible and contemplated.
  • FIG. 9 is a structural block diagram of an apparatus for data transmission according to an embodiment of the present invention. As shown in FIG. 9, on the network side, the apparatus includes: a receiving module 82, a determining module 84, a configuration module 86, and a sending module 88, where
  • the receiving module 82 is configured to receive a reordering self-ignoring function response message reported by the UE;
  • the determining module 84 is configured to determine, according to the reordering self-ignoring function response message, whether the UE has a reordering self-ignoring function;
  • the configuration module 86 is configured to: when the judgment result is yes, if the UE needs to stop the reordering self-ignoring function, configure a reordering self-ignoring function stop instruction for stopping the UE reordering self-ignoring function;
  • the sending module 88 is configured to send a reordering self-ignoring function stop instruction to the UE.
  • the receiving module 82, the determining module 84, the configuration module 86, and the transmitting module 88 in the apparatus for data transmission may correspond to steps S402 to S408 of the data transmission method in the first embodiment.
  • the apparatus for data transmission adopts a reordering self-ignoring function response message reported by the UE, and determines whether the UE has the reordering self-ignoring function according to the reordering self-ignoring function response message; when the judgment result is yes, If the UE needs to stop the reordering self-ignoring function, the reordering self-ignoring function stop instruction for stopping the UE reordering self-ignoring function is configured; the reordering self-ignoring function stopping instruction is sent to the UE, and the retransmission data cannot be correctly corrected by the UE. Received questions, into It achieves the effect of improving the accuracy of retransmission data reception and avoiding the waste of PDCP data retransmission.
  • FIG. 10 is a structural block diagram of an apparatus for data transmission according to an embodiment of the present invention. As shown in FIG. 10, the apparatus includes: a message sending module 81, in addition to all the modules shown in FIG.
  • the message sending module 81 is configured to send a reordering self-ignoring function request message to the UE before receiving the reordering self-ignoring function response message reported by the UE, where the resequencing self-ignoring function request message is used by the receiving module 82. Indicates whether the UE feedback has a reordering self-ignoring function.
  • FIG. 11 is a structural block diagram of another apparatus for data transmission according to an embodiment of the present invention.
  • the apparatus includes: an instruction configuration module 83 and an instruction sending module, in addition to all the modules shown in FIG. 85, of which
  • the instruction configuration module 83 is configured to: after the determining module 84 determines, according to the reordering self-ignoring function response message, whether the UE has the reordering self-ignoring function, and when the determining result is yes, if the UE needs to start the reordering self-ignoring function, the configuration is configured. a reordering self-ignoring function start instruction for starting the reordering self-ignoring function of the UE;
  • the command sending module 85 is configured to send a reordering self-ignoring function start instruction to the UE.
  • FIG. 12 is a structural block diagram of an apparatus for data transmission according to the embodiment. As shown in FIG. 12, on the user equipment side, the apparatus includes: a message sending module 92, a first instruction receiving module 94, and a first instruction executing module 96. ,among them,
  • the message sending module 92 is configured to send a reordering self-ignoring function response message to the network side, where the reordering self-ignoring function response message is used to indicate whether the current UE has the reordering self-ignoring function;
  • the first instruction receiving module 94 is configured to receive a reordering self-ignoring function stop instruction sent by the network side when the stop reordering self-ignoring function needs to be performed;
  • the first instruction execution module 96 is configured to stop the reordering self-ignoring function according to the reordering self-ignoring function stop instruction.
  • the device for transmitting data sends a reordering self-ignoring function response message to the network side, where the reordering self-ignoring function response message is used to indicate the network side and the current Whether the user equipment UE has the reordering self-ignoring function; when the stop reordering self-ignoring function needs to be performed, the reordering self-ignoring function stopping instruction sent by the receiving network side is received; and the reordering self-ignoring function is stopped according to the reordering self-ignoring function stopping instruction, The problem that the retransmission data cannot be correctly received by the UE is solved, thereby improving the accuracy of receiving retransmission data and avoiding the waste of PDCP data retransmission.
  • FIG. 13 is a structural block diagram of another apparatus for data transmission according to the embodiment.
  • the apparatus for data transmission provided by the embodiment of the present application includes: Receive module 91, wherein
  • the message receiving module 91 is configured to receive the reordering self-ignoring function request message sent by the network side before the message sending module 92 sends the reordering self-ignoring function response message to the network side, where the reordering self-ignoring function request message is received.
  • FIG. 14 is a structural block diagram of another apparatus for data transmission according to the embodiment.
  • the apparatus for data transmission provided by the embodiment of the present application includes: a second instruction receiving module 98 and a second instruction executing module 99, wherein
  • the second instruction receiving module 98 is configured to receive a reordering self-ignoring function startup instruction sent by the network side when the startup reordering self-ignoring function needs to be performed;
  • the second instruction execution module 99 is configured to start the reordering self-ignoring function according to the reordering self-ignoring function startup instruction.
  • the apparatus includes: a first control module 1102, a detection module 1104, and a second control module 1106, where
  • the first control module 1102 is configured to stop the reordering self-ignoring function according to the state of the PDCP;
  • the detecting module 1104 is configured to determine whether there are still unreceived PDCP data packets to be retransmitted;
  • the second control module 1106 is configured to start the reordering self-ignoring function if the determination result is no.
  • the first control module 1102, the detection module 1104, and the second control module 1106 in the apparatus for data transmission provided by the embodiment of the present application may correspond to the data in the third embodiment. Step S602 to step S606 of the transmission method.
  • the apparatus for data transmission stops the reordering self-ignoring function according to the state of the PDCP on the UE side; determines whether there are still unreceived PDCP data packets to be retransmitted; if the judgment result is no In this case, the reordering self-ignoring function is started, which solves the problem that the retransmission data cannot be correctly received by the UE, thereby improving the accuracy of receiving retransmission data and avoiding the waste of PDCP data retransmission.
  • FIG. 16 is a structural block diagram of an apparatus for data transmission according to the embodiment.
  • the first control module 1102 includes: a sending unit 11021 and a first control unit 11022, where
  • the sending unit 11021 is configured to report a packet data convergence status report (PDCP STATUS REPORT) to the network side, where the PDCP STATUS REPORT is used to indicate to the network side that the receiving status of the PDCP data packet is received on the UE side;
  • PDCP STATUS REPORT packet data convergence status report
  • the first control unit 11022 is configured to trigger a PDCP data recovery process.
  • FIG. 17 is a structural block diagram of another apparatus for data transmission according to the embodiment.
  • the detecting module 1104 includes: a detecting unit 11041 and a second control unit 11042, where
  • the detecting unit 11041 is configured to determine, according to the PDCP STATUS REPORT, whether the data packet with the smallest sequence number in the reordering window is the newly received data packet after the lost PDCP data packet reported in the PDCP STATUS REPORT, before the reordering self-ignoring function is started. ;
  • the second control unit 11042 is configured to start the reordering self-ignoring function if the determination result is YES.
  • FIG. 18 is a structural block diagram of another apparatus for data transmission according to the embodiment.
  • the first control module 1102 includes: a first determining unit 11023 and a third control unit 11024, where
  • the first determining unit 11023 is configured to determine whether the sequence number corresponding to the idle location in the reordering window is the sequence number PDCP SN of the PDCP packet not received in the PDCP STATUS REPORT;
  • the third control unit 11024 is configured to keep the reordering self-ignoring function from being stopped when the determination result is YES.
  • FIG 19 is a block diagram showing the structure of another apparatus for data transmission according to this embodiment, as shown in Figure 19.
  • the first control module 1102 includes: a second determining unit 11025 and a fourth control unit 11026, where
  • the second determining unit 11025 is configured to determine, according to the sequence number of the PDCP data packet that is not received in the PDCP STATUS REPORT, whether a corresponding idle location exists in the reordering window;
  • the fourth control unit 11026 is configured to keep the reordering self-ignoring function from being stopped when the determination result is YES.
  • the system includes: a base station 2002 and a UE 2004.
  • the base station 2002 is in communication connection with the UE 2004, where
  • the base station 2002 is the data transmission device shown in any one of FIG. 9 to FIG. 11;
  • UE 2004 is the data transmission device shown in any of Figs. 12 to 19.
  • the data transmission system receives the reordering self-ignoring function response message reported by the UE on the base station side, and determines whether the UE has the reordering self-ignoring function according to the reordering self-ignoring function response message; The result is that, when initiating the change of the secondary cell (SCG) where the UE is located, configuring a reordering self-ignoring function stop instruction for stopping the UE reordering self-ignoring function; sending a reordering self-ignoring function stopping instruction to the UE, and solving the network
  • SCG secondary cell
  • the data packet is retransmitted to the UE according to the PDCP status report reported by the UE.
  • the UE will ignore the data before receiving the retransmission packet.
  • the problem that the retransmission data cannot be correctly received by the UE is achieved, and the effect of avoiding the waste of PDCP data retransmission is achieved.
  • the packet data convergence status report (PDCP STATUS REPORT) is reported to the network side, the reordering self-ignoring function is stopped, where the PDCP STATUS REPORT is used to indicate to the network side that the PDCP data is received on the UE side.
  • the receiving status of the packet whether the data packet with the smallest sequence number in the reordering window detected by the PDCP STATUS REPORT is the data packet re-received after the lost PDCP data packet reported in the PDCP STATUS REPORT; if the judgment result is yes
  • the reordering self-ignoring function is started, which also solves the problem that the retransmitted data cannot be correctly received by the UE.
  • the foregoing modules may be implemented by software or hardware.
  • the foregoing may be implemented by, but not limited to, the foregoing modules are all located in the same processor; or The above modules are located in multiple processors.
  • the embodiment of the invention further provides a computer readable storage medium.
  • the computer readable storage medium may be configured to store program code for performing the following steps:
  • Step S1 Receive a reordering self-ignoring function response message reported by the UE;
  • Step S2 determining, according to the reordering self-ignoring function response message, whether the UE has a reordering self-ignoring function
  • Step S3 when the judgment result is yes, if the UE needs to stop the reordering self-ignoring function, configure a reordering self-ignoring function stop instruction for stopping the UE reordering self-ignoring function;
  • Step S4 sending a reordering self-ignoring function stop instruction to the UE.
  • the computer readable storage medium is further arranged to store program code for performing the steps of:
  • Step S1 Before receiving the reordering self-ignoring function response message reported by the UE, sending a reordering self-ignoring function request message to the UE, where the reordering self-ignoring function request message is used to indicate whether the UE feedback has reordering Self-ignoring function.
  • the computer readable storage medium may include, but is not limited to, a USB flash drive, a Read-Only Memory (ROM), a Random Access Memory (RAM), and a mobile device.
  • ROM Read-Only Memory
  • RAM Random Access Memory
  • the processor executes, according to the stored program code in the computer readable storage medium, after determining whether the UE has the reordering self-ignoring function according to the reordering self-ignoring function response message, when the determining result is If yes, if the UE needs to start the reordering self-ignoring function, configure a reordering self-ignoring function start instruction for starting the reordering self-ignoring function of the UE; and send a reordering self-ignoring function starting instruction to the UE.
  • an embodiment of the present invention further provides a computer readable storage medium, where computer executable instructions are stored, and when the computer executable instructions are executed, the data transmission provided in the second embodiment is implemented. The method of losing.
  • an embodiment of the present invention further provides a computer readable storage medium storing computer executable instructions, and when the computer executable instructions are executed, implementing the data transmission method provided by Embodiment 3 above.
  • modules or steps of the present application can be implemented by a general-purpose computing device, which can be centralized on a single computing device or distributed over a network of multiple computing devices. They may be implemented by program code executable by the computing device such that they may be stored in the storage device for execution by the computing device and, in some cases, may be performed in a different order than that illustrated herein. Or the steps described, either separately as individual integrated circuit modules, or as a plurality of modules or steps in a single integrated circuit module. Thus, the application is not limited to any particular combination of hardware and software.
  • the embodiment of the present invention provides a data transmission method, device, and system, which solves the problem that retransmission data cannot be correctly received by the UE, thereby improving the accuracy of retransmission data reception and avoiding the waste of PDCP data retransmission.

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Abstract

一种数据传输的方法，包括：接收用户设备UE上报的重排序自忽略功能响应报文；依据重排序自忽略功能响应报文判断UE是否具备重排序自忽略功能；当判断结果为是，若需要UE停止重排序自忽略功能，则配置用于停止UE重排序自忽略功能的重排序自忽略功能停止指令；向UE发送重排序自忽略功能停止指令。上述方法解决了重传数据无法被UE正确接收的问题，进而达到了提升重传数据接收准确率，并且避免PDCP数据重传浪费的效果。

Description

数据传输的方法、装置及系统 技术领域
本申请涉及但不限于通信领域，尤其涉及一种数据传输的方法、装置及系统。
背景技术
在相关的双连接技术中，在多层网络覆盖环境中，用户设备(User Equipment，简称UE)可以同时使用主基站(Master eNB，简称MeNB)与次基站(Secondary eNB，简称SeNB)的通信资源，及基站间聚合(inter-eNB聚合)。在上述场景下，UE的多个无线承载(Radio Bearer，简称RB)可以分别通过次小区(Secondary Cell Group，简称SCG)和主小区(Master Cell Group，简称MCG)分别承载。其中，分离到SeNB的RB可以包括数据无线承载(Data Radio Bearer，简称DRB)和/或信号无线承载(Signaling Radio Bearer，简称SRB)。
在双连接技术的支持下，如图1和图2所示，UE与MeNB和SeNB之间存在双连接架构，在该架构下由于UE的同一个承载的分组数据汇聚协议(Packet Data Convergence Protocol，简称PDCP)数据会同时通过SCG和MCG接收到，因此需要在UE的PDCP层进行重排序。对于PDCP重排序窗口(reordering window)中没有收到的PDCP序号(SN，Sequence Number)，相当于会在重排序窗口内产生一个空余位置(reordering gap)，UE会启动一个重排序定时器(reordering timer)，当该reordering timer超时的时候，UE忽略掉该PDCP SN，将后续重排序窗口中的PDCP包按照顺序递交给高层。
如图3所示，如果UE的reordering window中4号包没有收到，而收到了5和6号包。由于MeNB和SeNB各自都是按照顺序发送PDCP包给UE的，那么UE可以判断出来4号包丢失了，从而可以在重排序定时器超时前直接忽略4号包。这种UE自行判断出包丢失从而忽略reordering gap的行为，可以称为重排序自忽略(reordering gap self-ignoring)行为。
当切换或改变UE的SCG的时候，UE的PDCP/RLC(Radio Link Control，无线链路控制)/MAC(Media Access Control，介质访问控制)层需要进行相应的处理，该处理过程为次小区变化(SCG change)。
分离承载(Split bearer)的MCG和SCG的MAC实体会重置(MAC reset)。
Split bearer的SCG的RLC实体会重建(RLC re-establishment)，将RLC中的数据包按序递交给PDCP层。由于有些数据包在RLC层还没有被收到，因此PDCP层收到的数据包会产生reordering gap。
Split bearer的PDCP实体会触发上报分组数据汇聚状态报告(PDCP STATUS REPORT)，将接收到的和未接收到的PDCP SN上报给MeNB，UE的PDCP层会等待未接收到的数据包传输进行分离承载的PDCP重排序，该PDCP过程称为PDCP数据恢复过程(PDCP Data Recovery)。MeNB在接收到PDCP STATUS REPORT之后会触发重传，将UE没有收到的包重新传送给UE。
针对上述网络侧在SCG change的时候会根据UE上报的PDCP状态报告将数据包重传给UE，如果这时UE还采用重排序自忽略行为，会导致UE在接收到重传包之前就忽略掉该数据包，导致重传数据无法被UE正确接收的问题，目前尚未提出有效的解决方案。
发明内容
以下是对本文详细描述的主题的概述。本概述并非是为了限制权利要求的保护范围。
本发明实施例提供了一种数据传输的方法、装置及系统，以至少解决相关技术中网络侧在SCG change的时候会根据UE上报的PDCP状态报告将数据包重传给UE，如果这时UE还采用重排序自忽略行为，会导致UE在接收到重传包之前就忽略掉该数据包，导致重传数据无法被UE正确接收的问题。
根据本发明实施例的第一方面，提供了一种数据传输的方法，包括：接收用户设备(UE)上报的重排序自忽略功能响应报文；依据重排序自忽略功能响应报文判断UE是否具备重排序自忽略功能；当判断结果为是，若需要 UE停止重排序自忽略功能，则配置用于停止UE重排序自忽略功能的重排序自忽略功能停止指令；向UE发送重排序自忽略功能停止指令。
可选地，在接收UE上报的重排序自忽略功能响应报文之前，该方法还包括：向UE发送重排序自忽略功能请求报文，重排序自忽略功能请求报文，用于指示UE反馈是否具备重排序自忽略功能。
可选地，在依据重排序自忽略功能响应报文判断UE是否具备重排序自忽略功能之后，该方法还包括：当判断结果为是时，若需要UE启动重排序自忽略功能，则配置用于启动UE的重排序自忽略功能的重排序自忽略功能启动指令；向UE发送重排序自忽略功能启动指令。
根据本发明实施例的第二方面，提供了另一种数据传输的方法，包括：向网络侧发送重排序自忽略功能响应报文，其中，重排序自忽略功能响应报文，用于指示网络侧，当前UE是否具备重排序自忽略功能；当需要执行停止重排序自忽略功能时，接收网络侧发送的重排序自忽略功能停止指令；依据重排序自忽略功能停止指令停止重排序自忽略功能。
可选地，在向网络侧发送重排序自忽略功能响应报文之前，该方法还包括：接收网络侧发送的重排序自忽略功能请求报文，其中，重排序自忽略功能请求报文，用于指示UE反馈是否具备重排序自忽略功能。
可选地，该方法还包括：当需要执行启动重排序自忽略功能时，接收网络侧发送的重排序自忽略功能启动指令；依据重排序自忽略功能启动指令，启动重排序自忽略功能。
根据本发明实施例的第三方面，提供了又一种数据传输的方法，包括：依据PDCP的状态，停止重排序自忽略功能；判断是否还有未接收到的PDCP数据包会被重传；在判断结果为否的情况下，启动重排序自忽略功能。
可选地，依据PDCP的状态，停止重排序自忽略功能的步骤包括：向网络侧上报分组数据汇聚状态报告(PDCP STATUS REPORT)，其中，PDCP STATUS REPORT，用于向网络侧指示在UE侧接收PDCP数据包的接收状态；触发PDCP数据恢复过程。
可选地，在启动重排序自忽略功能之前，判断是否还有未接收到的PDCP 数据包会被重传，包括：依据PDCP STATUS REPORT判断重排序窗口中序号最小的数据包，是否为PDCP STATUS REPORT中上报的丢失的PDCP数据包后新接收到的数据包；在判断结果为是的情况下，启动重排序自忽略功能。
可选地，在向网络侧上报分组数据汇聚状态报告(PDCP STATUS REPORT)时，停止重排序自忽略功能的步骤包括：判断重排序窗口中的空闲位置对应的序号，是否为PDCP STATUS REPORT中未接收到的PDCP数据包的序号PDCP SN；在判断结果为是时，保持停止重排序自忽略功能。
可选地，在向网络侧上报分组数据汇聚状态报告(PDCP STATUS REPORT)时，停止重排序自忽略功能的步骤包括：依据PDCP STATUS REPORT中未被接收的PDCP数据包的序号判断重排序窗口中是否存在对应的空闲位置；当判断结果为是时，保持停止重排序自忽略功能。
根据本发明实施例的第四方面，提供了一种数据传输的装置，包括：
接收模块，设置为接收UE上报的重排序自忽略功能响应报文；
判断模块，设置为依据重排序自忽略功能响应报文判断UE是否具备重排序自忽略功能；
配置模块，设置为当判断结果为是，若需要UE停止重排序自忽略功能，则配置用于停止UE重排序自忽略功能的重排序自忽略功能停止指令；
发送模块，设置为向UE发送重排序自忽略功能停止指令。
可选地，该装置还包括：报文发送模块，设置为在接收模块接收UE上报的重排序自忽略功能响应报文之前，向UE发送重排序自忽略功能请求报文，其中，重排序自忽略功能请求报文，用于指示UE反馈是否具备重排序自忽略功能。
可选地，该装置还包括：
指令配置模块，设置为在判断模块依据重排序自忽略功能响应报文判断UE是否具备重排序自忽略功能之后，当判断结果为是时，若需要UE启动重排序自忽略功能，则配置用于启动UE的重排序自忽略功能的重排序自忽略功能启动指令；
指令发送模块，设置为向UE发送重排序自忽略功能启动指令。
根据本发明实施例的第五方面，提供了另一种数据传输的装置，包括：
报文发送模块，设置为向网络侧发送重排序自忽略功能响应报文，其中，重排序自忽略功能响应报文，用于指示网络侧，当前UE是否具备重排序自忽略功能；
第一指令接收模块，设置为当需要执行停止重排序自忽略功能时，接收网络侧发送的重排序自忽略功能停止指令；
第一指令执行模块，设置为依据重排序自忽略功能停止指令，停止重排序自忽略功能。
可选地，该装置还包括：报文接收模块，设置为在报文发送模块向网络侧发送重排序自忽略功能响应报文之前，接收网络侧发送的重排序自忽略功能请求报文，其中，重排序自忽略功能请求报文，用于指示UE反馈是否具备重排序自忽略功能。
可选地，该装置还包括：
第二指令接收模块，设置为当需要执行启动重排序自忽略功能时，接收网络侧发送的重排序自忽略功能启动指令；
第二指令执行模块，设置为依据重排序自忽略功能启动指令，启动重排序自忽略功能。
根据本发明实施例的第六方面，提供了又一种数据传输的装置，包括：
第一控制模块，设置为依据PDCP的状态，停止重排序自忽略功能；
检测模块，设置为判断是否还有未接收到的PDCP数据包会被重传；
第二控制模块，设置为在判断结果为否的情况下，启动重排序自忽略功能。
可选地，第一控制模块包括：
发送单元，设置为向网络侧上报分组数据汇聚状态报告(PDCP STATUS REPORT)，其中，PDCP STATUS REPORT，用于向网络侧指示在UE侧接收PDCP数据包的接收状态；
第一控制单元，设置为触发PDCP数据恢复过程。
可选地，检测模块，包括：
检测单元，设置为在启动重排序自忽略功能之前，依据PDCP STATUS REPORT判断重排序窗口中序号最小的数据包，是否为PDCP STATUS REPORT中上报的丢失的PDCP数据包后新接收到的数据包；
第二控制单元，设置为在判断结果为是的情况下，启动重排序自忽略功能。
可选地，第一控制模块包括：
第一判断单元，设置为判断重排序窗口中的空闲位置对应的序号，是否为PDCP STATUS REPORT中未接收到的PDCP数据包的序号SN；
第三控制单元，设置为在判断结果为是时，保持停止重排序自忽略功能。
可选地，第一控制模块包括：
第二判断单元，设置为依据PDCP STATUS REPORT中未被接收的PDCP数据包的序号判断重排序窗口中是否存在对应的空闲位置；
第四控制单元，设置为当判断结果为是时，保持停止重排序自忽略功能。
根据本发明实施例的第七方面，提供了一种数据传输的系统，包括：基站和用户设备(UE)，基站与UE通信连接，其中，基站为上述根据本发明实施例的第四方面，提供的一种数据传输装置；UE为上述根据本发明实施例的第五方面提供的另一种数据传输装置，或者本发明实施例的第六方面提供的又一种数据传输装置。
此外，本发明实施例还提供一种计算机可读存储介质，存储有计算机可执行指令，所述计算机可执行指令被执行时实现本发明实施例的第一方面提供的上述数据传输的方法。
此外，本发明实施例还提供一种计算机可读存储介质，存储有计算机可执行指令，所述计算机可执行指令被执行时实现本发明实施例的第二方面提供的上述数据传输的方法。
此外，本发明实施例还提供一种计算机可读存储介质，存储有计算机可 执行指令，所述计算机可执行指令被执行时实现本发明实施例的第三方面提供的上述数据传输的方法。
通过本发明实施例，采用接收UE上报的重排序自忽略功能响应报文；依据重排序自忽略功能响应报文判断UE是否具备重排序自忽略功能；当判断结果为是，若需要UE停止重排序自忽略功能，则配置用于停止UE重排序自忽略功能的重排序自忽略功能停止指令；向UE发送重排序自忽略功能停止指令，如此，解决了重传数据无法被UE正确接收的问题，进而达到了提升重传数据接收准确率，并且避免PDCP数据重传浪费的效果。
在阅读并理解了附图和详细描述后，可以明白其他方面。
附图概述
此处所说明的附图用来提供对本申请的进一步理解，构成本申请的一部分，本申请的示意性实施例及其说明用于解释本申请，并不构成对本申请的不当限定。在附图中：
图1是相关技术中一种双连接的结构示意图；
图2是相关技术中另一种双连接的结构示意图；
图3是相关技术中UE侧的重排序窗口接收PDCP数据包的示意图；
图4是根据本发明实施例一的数据传输的方法的流程图；
图5是根据本发明实施例二的数据传输的方法的流程图；
图6是根据本申请实施例提供的数据传输的方法的流程示意图；
图7是根据本发明实施例三的数据传输的方法的流程图；
图8是根据本发明实施例三的另一种数据传输的方法的流程图；
图9是根据本发明实施例四的数据传输的装置的结构框图；
图10是根据本发明实施例四的数据传输的装置的可选结构框图；
图11是根据本发明实施例四的数据传输的装置的可选结构框图；
图12是根据本发明实施例五的数据传输的装置的结构框图；
图13是根据本发明实施例五的数据传输的装置的可选结构框图；
图14是根据本发明实施例五的数据传输的装置的可选结构框图；
图15是根据本发明实施例六的数据传输的装置的结构框图；
图16是根据本发明实施例六的数据传输的装置的可选结构框图；
图17是根据本发明实施例六的数据传输的装置的可选结构框图；
图18是根据本发明实施例六的数据传输的装置的可选结构框图；
图19是根据本发明实施例六的数据传输的装置的可选结构框图；以及，
图20是根据本发明实施例七的数据传输的系统的结构框图。
本发明的实施方式
下文中将参考附图并结合实施例来详细说明本申请。需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互组合。
需要说明的是，本申请的说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。
本申请实施例提供的一种数据传输的方法可以适用于多层网络覆盖环境中，即，由主基站和次基站构成的多层网络覆盖的环境，其中，主基站(Master eNB，简称MeNB)与次基站(Secondary eNB，简称SeNB)之间采用非理想的数据/信令接口Xn接口，用户设备(User Equipment，简称UE)可以同时工作在MeNB和SeNB下。当连接到MeNB的UE进入SeNB所对应的小区的覆盖范围时，MeNB可以根据信号强度或负载均衡等考虑，转移UE的部分或全部的数据/信令到SeNB以获得SeNB提供的服务，从而实现UE可以同时使用MeNB和SeNB的资源，及基站间聚合(inter-eNB聚合)。在该场景下，UE的多个无线承载(Radio Bearer，简称RB)可以分别通过次小区(Secondary Cell Group，简称SCG)和主小区(Master Cell Group，简称MCG)分别承载。其中分离到SeNB的RB可以包括数据无线承载(Data Radio Bearer，简称DRB)和/或信号无线承载(Signaling Radio Bearer，简称SRB)。
基于上述，由于UE的同一个承载的PDCP数据会同时通过SCG和MCG接收到，因此需要在UE的PDCP层进行重排序。对于PDCP重排序窗口 (reordering window)中没有收到的PDCP序号(Sequence Number，简称SN)，相当于会在重排序窗口内产生一个空余位置(reordering gap)，UE会启动一个重排序定时器(reordering timer)，当该reordering timer超时的时候，UE忽略掉该PDCP SN，将后续重排序窗口中的PDCP数据包按照顺序递交给高层。由于MeNB和SeNB各自都是按照顺序发送PDCP包给UE的，假设，在UE侧可以判断出来接收到的数据保障存在丢包现象，进而可以在重排序定时器超时前直接忽略丢失的数据包。这种UE自行判断出包丢失从而忽略reordering gap的行为，可以称为重排序自忽略(reordering gap self-ignoring)行为。当切换或改变UE的SCG的时候，这种时候UE的PDCP/RLC/MAC需要进行相应的处理，该处理过程为次小区变化(SCG change)。分离承载(Split bearer)的MCG和SCG的MAC实体会重置(MAC reset)。Split bearer的SCG的RLC实体会重建(RLC re-establishment)，将RLC中的数据包按序递交给PDCP层。由于有些数据包在RLC层还没有被收到，因此PDCP层收到的数据包会产生reordering gap。Split bearer的PDCP实体会触发上报PDCP状态报告(PDCP STATUS REPORT)将接收到的和未接收到的PDCP SN上报给MeNB，UE的PDCP层会等待未接收到的数据包传输进行分离承载的PDCP重排序，该PDCP过程称为PDCP数据恢复过程(PDCP Data Recovery)。MeNB在接收到PDCP STATUS REPORT之后会触发重传，将UE没有收到的包重新传送给UE。
实施例一
为了解决由于UE侧重排序自忽略功能导致的重传数据无法被UE正确接收的问题，从而避免PDCP数据重传浪费，在本实施例中提供了一种数据传输的方法，图4是根据本发明实施例的数据传输的方法的流程图，如图4所示，在基站侧，该方法包括如下步骤：
步骤S402，接收UE上报的重排序自忽略功能响应报文；
步骤S404，依据重排序自忽略功能响应报文判断UE是否具备重排序自忽略功能；
步骤S406，当判断结果为是，若需要UE停止重排序自忽略功能，则配置用于停止UE重排序自忽略功能的重排序自忽略功能停止指令；
步骤S408，向UE发送重排序自忽略功能停止指令。
本申请实施例提供的数据传输的方法可以适用于多层网络覆盖环境，在本申请实施例提供的数据传输的方法中，以适用于双连接技术背景下，由主基站(Master eNB，简称MeNB)与次基站(Secondary eNB，简称SeNB)组成的网络侧为例进行说明，其中，本申请实施例中的网络侧的基站包括但不限于：宏基站、微基站、无线接入点等各种无线通信设备。
这里网络侧在接收到用户设备(User Equipment，简称UE)上报的重排序自忽略功能响应报文中，获取当前UE是否具备重排序自忽略功能，当UE具备重排序自忽略功能时，若网络侧发起次小区变化(Secondary Cell Group change，简称SCG change)或切换，则配置用于指示UE停止执行重排序自忽略功能的重排序自忽略功能停止指令，从而在将该重排序自忽略功能停止指令发送至UE后，以使得UE依据该重排序自忽略功能停止指令停止执行重排序自忽略功能。
通过上述步骤，在网络侧，采用接收UE上报的重排序自忽略功能响应报文；依据重排序自忽略功能响应报文判断UE是否具备重排序自忽略功能；当判断结果为是，若需要UE停止重排序自忽略功能，则配置用于停止UE重排序自忽略功能的重排序自忽略功能停止指令；向UE发送重排序自忽略功能停止指令，解决了重传数据无法被UE正确接收的问题，进而达到了提升重传数据接收准确率，并且避免PDCP数据重传浪费的效果。
在步骤S402之前，本申请实施例中提供的数据传输的方法还可包括：
步骤S401，向UE发送重排序自忽略功能请求报文，其中，重排序自忽略功能请求报文，用于指示UE反馈是否具备重排序自忽略功能。
其中，本申请实施例提供的数据传输的方法中，网络侧向UE发送重排序自忽略功能请求报文可以以用户设备性能查询请求(UE Capability Enquiry)的形式发送至UE侧，以使得UE在收到该用户设备性能查询请求后，依据自身是否具备重排序自忽略功能返回重排序自忽略功能响应报文。
在步骤S404之后，本申请实施例中提供的数据传输的方法还可包括：
步骤S403，当判断结果为是时，若需要UE启动重排序自忽略功能，则 配置用于启动UE的重排序自忽略功能的重排序自忽略功能启动指令；
步骤S405，向UE发送重排序自忽略功能启动指令。
结合步骤S403和步骤S405，为保障网络侧与UE之间数据传输效率，在对UE所在小区进行变换或者切换小区之前，向UE发送重排序自忽略功能启动指令，以使得UE对于PDCP重排序窗口(reordering window)中没有收到的PDCP数据包序号(Sequence Number，简称SN)，相当于会在重排序窗口内产生一个空余位置(reordering gap)，UE会启动一个重排序定时器(reordering timer)，当该reordering timer超时的时候，UE忽略掉该PDCP SN，将后续重排序窗口中的PDCP包按照顺序递交给高层，从而保障网络侧与UE之间的数据传输效率。
实施例二
在本实施例中提供了另一种数据传输的方法，对应图4所示的实施例，在用户设备侧，图5是根据本发明实施例的一种数据传输的方法的流程图，如图5所示，该方法包括如下步骤：
步骤S502，向网络侧发送重排序自忽略功能响应报文，其中，重排序自忽略功能响应报文，用于指示网络侧，当前UE是否具备重排序自忽略功能；
步骤S504，当需要执行停止重排序自忽略功能时，接收网络侧发送的重排序自忽略功能停止指令；
步骤S506，依据重排序自忽略功能停止指令，停止重排序自忽略功能。
对应图4对应的实施例，于本实施例中，首先，UE向网络侧发送重排序自忽略功能响应报文，用于指示网络侧当前UE是否具备重排序自忽略功能；其次，当UE需要执行停止重排序自忽略功能时，UE接收网络侧发送的重排序自忽略功能停止指令；最后，UE依据重排序自忽略功能停止指令，停止重排序自忽略功能。
通过上述步骤，在用户设备侧，采用向网络侧发送重排序自忽略功能响应报文，其中，重排序自忽略功能响应报文，用于指示网络侧，当前UE是否具备重排序自忽略功能；当需要执行停止重排序自忽略功能时，接收网络侧发送的重排序自忽略功能停止指令；依据重排序自忽略功能停止指令停止 重排序自忽略功能，如此，解决了重传数据无法被UE正确接收的问题，进而达到了提升重传数据接收准确率，并且避免PDCP数据重传浪费的效果。
在步骤S502之前，本申请实施例提供的数据传输的方法还可包括：
步骤S501，接收网络侧发送的重排序自忽略功能请求报文，其中，重排序自忽略功能请求报文，用于指示UE反馈是否具备重排序自忽略功能。
其中，对应图4提供的实施例，在网络侧发送重排序自忽略功能请求报文后，在UE侧接收该重排序自忽略功能请求报文。
本申请实施例提供的一种数据传输的方法还可包括：
步骤S508，当需要执行启动重排序自忽略功能时，接收网络侧发送的重排序自忽略功能启动指令；
步骤S510，依据重排序自忽略功能启动指令，启动重排序自忽略功能。
其中，对应图4提供的实施例，当网络侧需要UE侧启动重排序自忽略功能时，UE接收网络侧发送的重排序自忽略功能启动指令，并依据重排序自忽略功能启动指令，启动重排序自忽略功能。
综上，结合图4和图5所示的实施例，在实现本申请实施例提供的数据传输的方法时，基站侧通过三个阶段实现本申请实施例提供的数据传输的方法，图6是本申请实施例提供的另一种数据传输的方法的流程示意图，如图6所示，基站侧通过三个阶段实现本申请实施例提供的数据传输的方法如下：
第一阶段(Phase 1)：能力上报阶段，该阶段包括以下步骤：
步骤1：网络侧请求UE能力信息，如图6中的UE能力查询(UE Capability Enquiry)；
步骤2：UE上报支持重排序自忽略的能力信息，如图6中的UE能力信息(UE Capability Information)中的自忽略指示(self-ignoring indication)。
第二阶段(Phase 2):启动重排序自忽略，该阶段包括以下步骤：
步骤3：网络侧根据UE是否具备重排序自忽略功能，在配置了UE分离承载的时候，配置UE启动重排序自忽略功能，如图6中的RRC连接重配置(RRC Connection Reconfiguration)中的自忽略启动指示(self-ignoring enable  indication)；
步骤4：根据步骤3中的配置，UE启动重排序自忽略功能。
第三阶段(Phase 3):停止重排序自忽略，该阶段包括以下步骤：
步骤5：UE启动了重排序自忽略功能，网络侧可以在发起SCG change或切换的时候配置UE停止重排序自忽略功能，如图6中的RRC Connection Reconfiguration中的自忽略停止指示(self-ignoring disable indication)；
步骤6：根据步骤5中的配置，UE停止重排序自忽略功能。
由上可知，结合图6所示的步骤1至步骤6，网络侧依据UE是否具备重排序自忽略功能，对UE发起关于数据传输的控制，特别是在UE所在小区变换或小区切换后，为避免UE在上报PDCP状态报告(PDCP STATUS REPORT)后，网络侧将数据包重传给UE，如果这时UE还采用重排序自忽略行为，会到导致UE在接收到重传包之前就忽略掉该数据包，导致重传数据无法被UE正确接收，即，UE侧可能重复收到网络侧依据PDCP状态报告发送之前一直未收到的数据包；在本申请实施例提供的数据传输的方法中，网络侧在发起SCG change或UE所在小区切换后，生成配置UE停止重排序自忽略功能的重排序自忽略功能停止指令，以此来控制UE停止自动忽略来自网络侧的PDCP数据包，省去了UE侧上报PDCP状态报告的过程，提高了PDCP数据传输效率。
本申请实施例提供的数据传输的方法，在网络侧，通过接收UE上报的重排序自忽略功能响应报文；依据重排序自忽略功能响应报文判断UE是否具备重排序自忽略功能；当判断结果为是，在发起改变UE所在的SCG时，配置用于停止UE重排序自忽略功能的重排序自忽略功能停止指令；向UE发送重排序自忽略功能停止指令，解决了网络侧在SCG change的时候会根据UE上报的PDCP状态报告将数据包重传给UE，如果这时UE还采用重排序自忽略行为，会到导致UE在接收到重传包之前就忽略掉该数据包，导致重传数据无法被UE正确接收的问题，达到了避免PDCP数据重传浪费的效果。
实施例三
在本实施例中提供了一种数据传输的方法，图7是根据本实施例的数据 传输的方法的流程图，如图7所示，在用户设备侧，该方法包括如下步骤：
步骤S602，依据PDCP的状态，停止重排序自忽略功能；
步骤S604，判断是否还有未接收到的PDCP数据包会被重传；
步骤S606，在判断结果为否的情况下，启动重排序自忽略功能。
本申请实施例提供的数据传输的方法可以适用于多层网络覆盖环境，在本申请实施例提供的数据传输的方法中，在用户设备侧包括但不限于：数据卡、手机、笔记本电脑、个人电脑、平板电脑、个人数字助理、蓝牙等各种终端以及中继、拉远设备、无线接入点等各种无线通信设备；其中，本申请实施例中的网络侧的基站包括但不限于：宏基站、微基站、无线接入点等各种无线通信设备。步骤S602在UE进行数据重置时触发，即，在PDCP Data Recovery时，在向网络侧上报分组数据汇聚状态报告(PDCP STATUS REPORT)时，停止重排序自忽略功能。
步骤S602可以包括：
Step1，向网络侧上报分组数据汇聚状态报告(PDCP STATUS REPORT)，其中，PDCP STATUS REPORT，用于向网络侧指示在UE侧接收PDCP数据包的接收状态；
Step2，触发PDCP数据恢复过程。
其中，PDCP STATUS REPORT中用于向网络侧指示在UE侧接收PDCP数据包的接收状态可以包括：已接收和未接收的PDCP数据包。
通过上述步骤，在UE侧，采用依据PDCP的状态，停止重排序自忽略功能；判断是否还有未接收到的PDCP数据包会被重传；在判断结果为否的情况下，启动重排序自忽略功能，解决了重传数据无法被UE正确接收的问题，进而达到了提升重传数据接收准确率，并且避免PDCP数据重传浪费的效果。
在启动重排序自忽略功能之前，步骤S604可以包括：
Step1，依据PDCP STATUS REPORT判断重排序窗口中序号最小的数据包，是否为PDCP STATUS REPORT中上报的丢失的PDCP数据包后新接收到的数据包；
Step2，在判断结果为是的情况下，启动重排序自忽略功能。
这里用户设备侧在向网络侧上报PDCP STATUS REPORT时，触发停止重排序自忽略功能，进一步的，用户设备侧进行自检，即，依据上报的PDCP STATUS REPORT检测在重排序窗口中序号最小的数据包，是否为PDCP STATUS REPORT中上报的丢失的PDCP数据包后重新接收到的数据包，当判断结果为是的情况下，UE启动重排序自忽略功能。本申请实施例提供的数据传输的方法，在UE侧，通过在向网络侧上报PDCP STATUS REPORT的同时，UE触发停止重排序自忽略功能，解决了重传数据无法被UE正确接收的问题，进而达到了提升重传数据接收准确率，并且避免PDCP数据重传浪费的效果。
由于判断结果为是，即，当前UE的重排序窗口中序号最小的数据包是上报的PDCP STATUS REPORT中所有PDCP数据包之后新收到的PDCP数据包，所以为了避免丢包现象，UE控制启动重排序自忽略功能，从而保障UE与网络侧之间的数据传输效率。
在步骤S602中的Step1，在向网络侧上报分组数据汇聚状态报告(PDCP STATUS REPORT)时，停止重排序自忽略功能的步骤包括：
Step11，判断重排序窗口中的空闲位置对应的序号，是否为PDCP STATUS REPORT中未接收到的PDCP数据包的序号SN；
Step12，在判断结果为是时，保持停止重排序自忽略功能。
结合Step11和Step12,如果UE的重排序窗口中的reordering gap是属于PDCP STATUS REPORT中的没有收到的PDCP SN，那么UE保持停止重排序自忽略。
假设，PDCP STATUS REPORT中，没有收到的PDCP数据包的序号PDCP SN为：序号3和序号4的PDCP数据包，如果此时UE的重排序窗口中的空闲位置(reordering gap)也存在序号3和序号4的PDCP数据包，此时UE保持停止重排序自忽略。
可选地，在步骤S602中的Step1，在向网络侧上报分组数据汇聚状态报告(PDCP STATUS REPORT)时，停止重排序自忽略功能的步骤包括：
Step13，依据PDCP STATUS REPORT中未被接收的PDCP数据包的序号判断重排序窗口中是否存在对应的空闲位置；
Step14，当判断结果为是时，保持停止重排序自忽略功能。
区别于上述步骤S602中Step11和Step12中的停止重排序自忽略功能的条件，在Step13和Step14存在另一种可以实现停止重排序自忽略功能的条件。即假设，PDCP STATUS REPORT中未被接收的PDCP数据包的序号可以为：序号6、序号7和序号8的PDCP数据包，而在UE的重排序窗口中没有序号6、序号7和序号8的PDCP数据包，说明UE存在丢失序号6、序号7和序号8的PDCP数据包的可能，为了避免丢包，UE侧先保持停止重排序自忽略功能。
综上，图8是根据本实施例的另一种数据传输的方法的流程图，如图8所示，结合上述步骤S602至步骤S606，在实现本申请实施例提供的数据传输的方法时，用户设备侧通过以下步骤实现本申请实施例提供的数据传输的方法：
步骤1：UE在触发PDCP Data Recovery的时候，UE停止重排序自忽略行为。此时UE也会触发上报PDCP STATUS REPORT；如图8所示，1/2/5为接收到的PDCP SN，3/4/6/7/8/9为没有收到的PDCP SN；UE的PDCP重排序窗口中会产生reordering gap(如图8中的3/4)；
步骤2：如果UE的重排序窗口中的reordering gap是属于PDCP STATUS REPORT中的没有收到的PDCP SN，那么UE保持停止重排序自忽略；UE也可以判断数据包6/7/8/9会在后续发送中被收到，因此UE在重排序窗口接收到这些数据前，保持停止重排序自忽略；
步骤3：当UE的重排序窗口的下边界(lowest SN)的数据包是PDCP STATUS REPORT中上报的丢失的PDCP数据包的后续的包(如11号包)，那么UE可以判断出PDCP STATUS REPORT中上报的丢失的PDCP数据包不会再产生reordering gap，从而UE可以启动重排序自忽略行为。
通过以上的实施方式的描述，本领域的技术人员可以清楚地了解到根据上述实施例的方法可借助软件加必需的通用硬件平台的方式来实现，当然也 可以通过硬件，但很多情况下前者是更佳的实施方式。基于这样的理解，本申请的技术方案本质上或者说对相关技术做出贡献的部分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(如ROM/RAM、磁碟、光盘)中，包括若干指令用以使得一台终端设备(可以是手机，计算机，服务器，或者网络设备等)执行本申请各个实施例所述的方法。
在本实施例中还提供了一种数据传输的装置，该装置用于实现上述实施例及可选实施方式，已经进行过说明的不再赘述。如以下所使用的，术语“模块”可以实现预定功能的软件和/或硬件的组合。尽管以下实施例所描述的装置可选地以软件来实现，但是硬件，或者软件和硬件的组合的实现也是可能并被构想的。
实施例四
图9是根据本发明实施例的数据传输的装置的结构框图，如图9所示，在网络侧，该装置包括：接收模块82、判断模块84、配置模块86和发送模块88，其中，
接收模块82，设置为接收UE上报的重排序自忽略功能响应报文；
判断模块84，设置为依据重排序自忽略功能响应报文判断UE是否具备重排序自忽略功能；
配置模块86，设置为当判断结果为是，若需要UE停止重排序自忽略功能，则配置用于停止UE重排序自忽略功能的重排序自忽略功能停止指令；
发送模块88，设置为向UE发送重排序自忽略功能停止指令。
这里在网络侧，本申请实施例提供的数据传输的装置中的接收模块82、判断模块84、配置模块86和发送模块88可以对应实施例一中的数据传输方法的步骤S402至步骤S408。
本申请实施例提供的数据传输的装置，采用接收UE上报的重排序自忽略功能响应报文；依据重排序自忽略功能响应报文判断UE是否具备重排序自忽略功能；当判断结果为是，若需要UE停止重排序自忽略功能，则配置用于停止UE重排序自忽略功能的重排序自忽略功能停止指令；向UE发送重排序自忽略功能停止指令，解决了重传数据无法被UE正确接收的问题，进 而达到了提升重传数据接收准确率，并且避免PDCP数据重传浪费的效果。
图10是根据本发明实施例的一种数据传输的装置的结构框图，如图10所示，该装置除包括图9所示的所有模块外，还包括：报文发送模块81，其中，
报文发送模块81，设置为在接收模块82接收UE上报的重排序自忽略功能响应报文之前，向UE发送重排序自忽略功能请求报文，其中，重排序自忽略功能请求报文，用于指示UE反馈是否具备重排序自忽略功能。
图11是根据本发明实施例的另一种数据传输的装置的结构框图，如图11所示，该装置除包括图10所示的所有模块外，还包括：指令配置模块83和指令发送模块85，其中，
指令配置模块83，设置为在判断模块84依据重排序自忽略功能响应报文判断UE是否具备重排序自忽略功能之后，当判断结果为是时，若需要UE启动重排序自忽略功能，则配置用于启动UE的重排序自忽略功能的重排序自忽略功能启动指令；
指令发送模块85，设置为向UE发送重排序自忽略功能启动指令。
实施例五
图12是根据本实施例的数据传输的装置的结构框图，如图12所示，在用户设备侧，该装置包括：报文发送模块92、第一指令接收模块94和第一指令执行模块96，其中，
报文发送模块92，设置为向网络侧发送重排序自忽略功能响应报文，其中，重排序自忽略功能响应报文，用于指示网络侧，当前UE是否具备重排序自忽略功能；
第一指令接收模块94，设置为当需要执行停止重排序自忽略功能时，接收网络侧发送的重排序自忽略功能停止指令；
第一指令执行模块96，设置为依据重排序自忽略功能停止指令停止重排序自忽略功能。
本申请实施例提供的数据传输的装置，采用向网络侧发送重排序自忽略功能响应报文，其中，重排序自忽略功能响应报文，用于指示网络侧，当前 用户设备UE是否具备重排序自忽略功能；当需要执行停止重排序自忽略功能时，接收网络侧发送的重排序自忽略功能停止指令；依据重排序自忽略功能停止指令停止重排序自忽略功能，解决了重传数据无法被UE正确接收的问题，进而达到了提升重传数据接收准确率，并且避免PDCP数据重传浪费的效果。
图13是根据本实施例的另一种数据传输的装置的结构框图，如图13所示，本申请实施例提供的数据传输的装置除包括图12所示的所有模块外，还包括：报文接收模块91，其中，
报文接收模块91，设置为在报文发送模块92向网络侧发送重排序自忽略功能响应报文之前，接收网络侧发送的重排序自忽略功能请求报文，其中，重排序自忽略功能请求报文，用于指示UE反馈是否具备重排序自忽略功能。
图14是根据本实施例的另一种数据传输的装置的结构框图，如图14所示，本申请实施例提供的数据传输的装置除包括图12所示的所有模块外，还包括：第二指令接收模块98和第二指令执行模块99，其中，
第二指令接收模块98，设置为当需要执行启动重排序自忽略功能时，接收网络侧发送的重排序自忽略功能启动指令；
第二指令执行模块99，设置为依据重排序自忽略功能启动指令，启动重排序自忽略功能。
实施例六
图15是根据本实施例的数据传输的装置的结构框图，如图15所示，在用户设备侧，该装置包括：第一控制模块1102、检测模块1104和第二控制模块1106，其中，
第一控制模块1102，设置为依据PDCP的状态，停止重排序自忽略功能；
检测模块1104，设置为判断是否还有未接收到的PDCP数据包会被重传；
第二控制模块1106，设置为在判断结果为否的情况下，启动重排序自忽略功能。
这里在用户设备侧，本申请实施例提供的数据传输的装置中的第一控制模块1102、检测模块1104和第二控制模块1106可以对应实施例三中的数据 传输方法的步骤S602至步骤S606。
本申请实施例提供的数据传输的装置，在UE侧，采用依据PDCP的状态，停止重排序自忽略功能；判断是否还有未接收到的PDCP数据包会被重传；在判断结果为否的情况下，启动重排序自忽略功能，解决了重传数据无法被UE正确接收的问题，进而达到了提升重传数据接收准确率，并且避免PDCP数据重传浪费的效果。
图16是根据本实施例的一种数据传输的装置的结构框图，如图16所示，第一控制模块1102包括：发送单元11021和第一控制单元11022，其中，
发送单元11021，设置为向网络侧上报分组数据汇聚状态报告(PDCP STATUS REPORT)，其中，PDCP STATUS REPORT，用于向网络侧指示在UE侧接收PDCP数据包的接收状态；
第一控制单元11022，设置为触发PDCP数据恢复过程。
图17是根据本实施例的另一种数据传输的装置的结构框图，如图17所示，检测模块1104包括：检测单元11041和第二控制单元11042，其中，
检测单元11041，设置为在启动重排序自忽略功能之前，依据PDCP STATUS REPORT判断重排序窗口中序号最小的数据包，是否为PDCP STATUS REPORT中上报的丢失的PDCP数据包后新接收到的数据包；
第二控制单元11042，设置为在判断结果为是的情况下，启动重排序自忽略功能。
图18是根据本实施例的又一种数据传输的装置的结构框图，如图18所示，第一控制模块1102包括：第一判断单元11023和第三控制单元11024，其中，
第一判断单元11023，设置为判断重排序窗口中的空闲位置对应的序号，是否为PDCP STATUS REPORT中未接收到的PDCP数据包的序号PDCP SN；
第三控制单元11024，设置为在判断结果为是时，保持停止重排序自忽略功能。
图19是根据本实施例的再一种数据传输的装置的结构框图，如图19所 示，第一控制模块1102包括：第二判断单元11025和第四控制单元11026，其中，
第二判断单元11025，设置为依据PDCP STATUS REPORT中未被接收的PDCP数据包的序号判断重排序窗口中是否存在对应的空闲位置；
第四控制单元11026，设置为当判断结果为是时，保持停止重排序自忽略功能。
实施例七
图20是根据本实施例的数据传输的系统的结构框图，如图20所示，该系统包括：基站2002和UE 2004，基站2002与UE 2004通信连接，其中，
基站2002为图9至图11中任一所示的数据传输装置；
UE 2004为图12至图19中任一所示的数据传输装置。
本申请实施例提供的数据传输的系统，在基站侧，通过接收UE上报的重排序自忽略功能响应报文；依据重排序自忽略功能响应报文判断UE是否具备重排序自忽略功能；当判断结果为是，在发起改变UE所在的次小区(SCG)时，配置用于停止UE重排序自忽略功能的重排序自忽略功能停止指令；向UE发送重排序自忽略功能停止指令，解决了网络侧在SCG change的时候会根据UE上报的PDCP状态报告将数据包重传给UE，如果这时UE还采用重排序自忽略行为，会到导致UE在接收到重传包之前就忽略掉该数据包，导致重传数据无法被UE正确接收的问题，达到了避免PDCP数据重传浪费的效果。并且，在用户设备侧，采用在向网络侧上报分组数据汇聚状态报告(PDCP STATUS REPORT)时，停止重排序自忽略功能，其中，PDCP STATUS REPORT，用于向网络侧指示在UE侧接收PDCP数据包的接收状态；依据PDCP STATUS REPORT检测的重排序窗口中序号最小的数据包，是否为PDCP STATUS REPORT中上报的丢失的PDCP数据包后重新接收到的数据包；在判断结果为是的情况下，启动重排序自忽略功能，同样解决了重传数据无法被UE正确接收的问题。
需要说明的是，上述模块是可以通过软件或硬件来实现的，对于后者，可以通过以下方式实现，但不限于此：上述模块均位于同一处理器中；或者， 上述模块分别位于多个处理器中。
本发明实施例还提供了一种计算机可读存储介质。可选地，在本实施例中，上述计算机可读存储介质可以被设置为存储用于执行以下步骤的程序代码：
步骤S1，接收UE上报的重排序自忽略功能响应报文；
步骤S2，依据重排序自忽略功能响应报文判断UE是否具备重排序自忽略功能；
步骤S3，当判断结果为是，若需要UE停止重排序自忽略功能，则配置用于停止UE重排序自忽略功能的重排序自忽略功能停止指令；
步骤S4，向UE发送重排序自忽略功能停止指令。
可选地，计算机可读存储介质还被设置为存储用于执行以下步骤的程序代码：
步骤S1，在接收UE上报的重排序自忽略功能响应报文之前，向UE发送重排序自忽略功能请求报文，其中，重排序自忽略功能请求报文，用于指示UE反馈是否具备重排序自忽略功能。
可选地，在本实施例中，上述计算机可读存储介质可以包括但不限于：U盘、只读存储器(ROM，Read-Only Memory)、随机存取存储器(RAM，Random Access Memory)、移动硬盘、磁碟或者光盘等各种可以存储程序代码的介质。
可选地，在本实施例中，处理器根据计算机可读存储介质中已存储的程序代码执行在依据重排序自忽略功能响应报文判断UE是否具备重排序自忽略功能之后，当判断结果为是时，若需要UE启动重排序自忽略功能，则配置用于启动UE的重排序自忽略功能的重排序自忽略功能启动指令；向UE发送重排序自忽略功能启动指令。
可选地，本实施例中的示例可以参考上述实施例及可选实施方式中所描述的示例，本实施例在此不再赘述。
此外，本发明实施例还提供一种计算机可读存储介质，存储有计算机可执行指令，所述计算机可执行指令被执行时实现上述实施例二提供的数据传 输的方法。
此外，本发明实施例还提供一种计算机可读存储介质，存储有计算机可执行指令，所述计算机可执行指令被执行时实现上述实施例三提供的数据传输的方法。
本领域的技术人员应该明白，上述的本申请的模块或步骤可以用通用的计算装置来实现，它们可以集中在单个的计算装置上，或者分布在多个计算装置所组成的网络上，可选地，它们可以用计算装置可执行的程序代码来实现，从而，可以将它们存储在存储装置中由计算装置来执行，并且在某些情况下，可以以不同于此处的顺序执行所示出或描述的步骤，或者将它们分别制作成各个集成电路模块，或者将它们中的多个模块或步骤制作成单个集成电路模块来实现。这样，本申请不限制于任何特定的硬件和软件结合。
以上所述仅为本申请的可选实施例而已，并不用于限制本申请，对于本领域的技术人员来说，本申请可以有各种更改和变化。凡在本申请的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本申请的保护范围之内。
工业实用性
本申请实施例提供一种数据传输的方法、装置及系统，解决了重传数据无法被UE正确接收的问题，进而达到了提升重传数据接收准确率，并且避免PDCP数据重传浪费的效果。

Claims (23)

  1. 一种数据传输的方法，包括：
    接收用户设备UE上报的重排序自忽略功能响应报文；
    依据所述重排序自忽略功能响应报文判断所述UE是否具备重排序自忽略功能；
    当判断结果为是，若需要UE停止重排序自忽略功能，则配置用于停止所述UE重排序自忽略功能的重排序自忽略功能停止指令；
    向所述UE发送所述重排序自忽略功能停止指令。
  2. 根据权利要求1所述的方法，在所述接收UE上报的重排序自忽略功能响应报文之前，所述方法还包括：
    向所述UE发送重排序自忽略功能请求报文，其中，所述重排序自忽略功能请求报文，用于指示所述UE反馈是否具备重排序自忽略功能。
  3. 根据权利要求1所述的方法，在依据所述重排序自忽略功能响应报文判断所述UE是否具备重排序自忽略功能之后，所述方法还包括：
    当判断结果为是时，若需要UE启动重排序自忽略功能，则配置用于启动所述UE的重排序自忽略功能的重排序自忽略功能启动指令；
    向所述UE发送所述重排序自忽略功能启动指令。
  4. 一种数据传输的方法，包括：
    向网络侧发送重排序自忽略功能响应报文，其中，所述重排序自忽略功能响应报文，用于指示所述网络侧，当前用户设备UE是否具备重排序自忽略功能；
    当需要执行停止重排序自忽略功能时，接收所述网络侧发送的重排序自忽略功能停止指令；
    依据所述重排序自忽略功能停止指令，停止重排序自忽略功能。
  5. 根据权利要求4所述的方法，在向网络侧发送重排序自忽略功能响应报文之前，所述方法还包括：
    接收所述网络侧发送的重排序自忽略功能请求报文，其中，所述重排序 自忽略功能请求报文，用于指示所述UE反馈是否具备重排序自忽略功能。
  6. 根据权利要求4所述的方法，所述方法还包括：
    当需要执行启动重排序自忽略功能时，接收所述网络侧发送的重排序自忽略功能启动指令；
    依据所述重排序自忽略功能启动指令，启动所述重排序自忽略功能。
  7. 一种数据传输的方法，包括：
    依据分组数据汇聚协议PDCP的状态，停止重排序自忽略功能；
    判断是否还有未接收到的PDCP数据包会被重传；
    在判断结果为否的情况下，启动所述重排序自忽略功能。
  8. 根据权利要求7所述的方法，其中，所述依据PDCP的状态，停止重排序自忽略功能的步骤包括：
    向网络侧上报分组数据汇聚状态报告PDCP STATUS REPORT，其中，所述PDCP STATUS REPORT，用于向所述网络侧指示在用户设备UE侧接收PDCP数据包的接收状态；
    触发PDCP数据恢复过程。
  9. 根据权利要求7所述的方法，其中，在启动所述重排序自忽略功能之前，判断是否还有未接收到的PDCP数据包会被重传，包括：
    依据分组数据汇聚状态报告PDCP STATUS REPORT判断重排序窗口中序号最小的数据包，是否为所述PDCP STATUS REPORT中上报的丢失的PDCP数据包后新接收到的数据包；
    在判断结果为是的情况下，启动所述重排序自忽略功能。
  10. 根据权利要求8所述的方法，其中，在向网络侧上报分组数据汇聚状态报告PDCP STATUS REPORT时，停止重排序自忽略功能的步骤包括：
    判断所述重排序窗口中的空闲位置对应的序号，是否为所述PDCP STATUS REPORT中未接收到的PDCP数据包的序号SN；
    在判断结果为是时，保持停止所述重排序自忽略功能。
  11. 根据权利要求8所述的方法，其中，在向网络侧上报分组数据汇聚 状态报告PDCP STATUS REPORT时，停止重排序自忽略功能的步骤包括：
    依据所述PDCP STATUS REPORT中未被接收的PDCP数据包的序号判断所述重排序窗口中是否存在对应的空闲位置；
    当判断结果为是时，保持停止所述重排序自忽略功能。
  12. 一种数据传输的装置，包括：
    接收模块，设置为接收用户设备UE上报的重排序自忽略功能响应报文；
    判断模块，设置为依据所述重排序自忽略功能响应报文判断所述UE是否具备重排序自忽略功能；
    配置模块，设置为：当判断结果为是，若需要UE停止重排序自忽略功能，则配置用于停止所述UE重排序自忽略功能的重排序自忽略功能停止指令；
    发送模块，设置为向所述UE发送所述重排序自忽略功能停止指令。
  13. 根据权利要求12所述的装置，所述装置还包括：
    报文发送模块，设置为在所述接收模块接收UE上报的重排序自忽略功能响应报文之前，向所述UE发送重排序自忽略功能请求报文，其中，所述重排序自忽略功能请求报文，用于指示所述UE反馈是否具备重排序自忽略功能。
  14. 根据权利要求12所述的装置，所述装置还包括：
    指令配置模块，设置为在所述判断模块依据所述重排序自忽略功能响应报文判断所述UE是否具备重排序自忽略功能之后，当判断结果为是时，若需要UE启动重排序自忽略功能，则配置用于启动所述UE的重排序自忽略功能的重排序自忽略功能启动指令；
    指令发送模块，设置为向所述UE发送所述重排序自忽略功能启动指令。
  15. 一种数据传输的装置，包括：
    报文发送模块，设置为向网络侧发送重排序自忽略功能响应报文，其中，所述重排序自忽略功能响应报文，用于指示所述网络侧，当前用户设备UE是否具备重排序自忽略功能；
    第一指令接收模块，设置为当需要执行停止重排序自忽略功能时，接收所述网络侧发送的重排序自忽略功能停止指令；
    第一指令执行模块，设置为依据所述重排序自忽略功能停止指令，停止重排序自忽略功能。
  16. 根据权利要求15所述的装置，所述装置还包括：
    报文接收模块，设置为在所述报文发送模块向网络侧发送重排序自忽略功能响应报文之前，接收所述网络侧发送的重排序自忽略功能请求报文，其中，所述重排序自忽略功能请求报文，用于指示所述UE反馈是否具备重排序自忽略功能。
  17. 根据权利要求15所述的装置，所述装置还包括：
    第二指令接收模块，设置为当需要执行启动重排序自忽略功能时，接收所述网络侧发送的重排序自忽略功能启动指令；
    第二指令执行模块，设置为依据所述重排序自忽略功能启动指令，启动所述重排序自忽略功能。
  18. 一种数据传输的装置，包括：
    第一控制模块，设置为依据分组数据汇聚协议PDCP的状态，停止重排序自忽略功能；
    检测模块，设置为判断是否还有未接收到的PDCP数据包会被重传；
    第二控制模块，设置为在判断结果为否的情况下，启动所述重排序自忽略功能。
  19. 根据权利要求18所述的装置，其中，所述第一控制模块包括：
    发送单元，设置为向网络侧上报分组数据汇聚状态报告PDCP STATUS REPORT，其中，所述PDCP STATUS REPORT，用于向所述网络侧指示在用户设备UE侧接收PDCP数据包的接收状态；
    第一控制单元，设置为触发PDCP数据恢复过程。
  20. 根据权利要求18所述的装置，其中，所述检测模块包括：
    检测单元，设置为在启动所述重排序自忽略功能之前，依据分组数据汇 聚状态报告PDCP STATUS REPORT判断重排序窗口中序号最小的数据包，是否为所述PDCP STATUS REPORT中上报的丢失的PDCP数据包后新接收到的数据包；
    第二控制单元，设置为在判断结果为是的情况下，启动所述重排序自忽略功能。
  21. 根据权利要求19所述的装置，其中，所述第一控制模块包括：
    第一判断单元，设置为判断重排序窗口中的空闲位置对应的序号，是否为所述PDCP STATUS REPORT中未接收到的PDCP数据包的序号SN；
    第三控制单元，设置为在判断结果为是时，保持停止所述重排序自忽略功能。
  22. 根据权利要求19所述的装置，其中，所述第一控制模块包括：
    第二判断单元，设置为依据所述PDCP STATUS REPORT中未被接收的PDCP数据包的序号判断重排序窗口中是否存在对应的空闲位置；
    第四控制单元，设置为当判断结果为是时，保持停止所述重排序自忽略功能。
  23. 一种数据传输的系统，包括：基站和用户设备UE，所述基站与所述UE通信连接，其中，
    所述基站为权利要求12至14中任一项所述的数据传输装置；
    所述UE为权利要求15至17中任一项，或权利要求18至22中任一项所述的数据传输装置。
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