WO2018177021A1 - 一种分段组包方法及接收端 - Google Patents

一种分段组包方法及接收端 Download PDF

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Publication number
WO2018177021A1
WO2018177021A1 PCT/CN2018/074676 CN2018074676W WO2018177021A1 WO 2018177021 A1 WO2018177021 A1 WO 2018177021A1 CN 2018074676 W CN2018074676 W CN 2018074676W WO 2018177021 A1 WO2018177021 A1 WO 2018177021A1
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Prior art keywords
data packet
rlc
received
packet
target data
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PCT/CN2018/074676
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English (en)
French (fr)
Inventor
吴昱民
杨晓东
Original Assignee
维沃移动通信有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 维沃移动通信有限公司 filed Critical 维沃移动通信有限公司
Priority to EP18777245.4A priority Critical patent/EP3606155B1/en
Priority to US16/498,176 priority patent/US11337111B2/en
Priority to ES18777245T priority patent/ES2919344T3/es
Publication of WO2018177021A1 publication Critical patent/WO2018177021A1/zh

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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
    • H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
    • H04W28/065—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information using assembly or disassembly of packets

Definitions

  • the present disclosure relates to the field of communications technologies, and in particular, to a segment grouping method and a receiving end.
  • the Radio Link Control (RLC) layer is an important protocol layer in the communication system.
  • the data of the Media Access Control (MAC) layer can be reported to the Packet Data Convergence Protocol (Packet Data). Convergence Protocol, Packet Data Convergence Protocol (PDCP) layer.
  • Packet Data Packet Data Convergence Protocol
  • PDCP Packet Data Convergence Protocol
  • Embodiments of the present disclosure provide a segment grouping method and a receiving end to solve the problem of how to implement grouping at the RLC layer.
  • an embodiment of the present disclosure provides a segment grouping method, which is applied to a receiving end, and includes:
  • the receiving end receives the target data packet at the RLC layer, determining, by the packet header of the target data packet, whether the target data packet is a segment of the RLC data packet;
  • the segments of the RLC data packet received by the receiving end are arranged;
  • the receiving end receives all the segments of the RLC data packet, grouping all the segments of the RLC data packet to obtain the RLC data packet;
  • the RLC data packet is reported to the PDCP layer.
  • an embodiment of the present disclosure further provides a receiving end, including:
  • a first segment determining module configured to determine, by the packet header of the target data packet, whether the target data packet is a branch of the RLC data packet, if the receiving end receives the target data packet in the radio link control RLC layer segment;
  • a segmentation module configured to: if the target data packet is a segment of the RLC data packet, arrange the segments of the RLC data packet received by the receiving end;
  • a packet module configured to: if the receiving end receives all the segments of the RLC data packet, group all the segments of the RLC data packet to obtain the RLC data packet;
  • the reporting module is configured to report the RLC data packet to the PDCP layer.
  • the receiving end receives the target data packet in the radio link control RLC layer, it is determined whether the target data packet is a segment of the RLC data packet by using a packet header of the target data packet. If the target data packet is a segment of the RLC data packet, the segments of the RLC data packet received by the receiving end are arranged; if the receiving end receives all the points of the RLC data packet And segmenting all the segments of the RLC data packet to obtain the RLC data packet; and reporting the RLC data packet to the PDCP layer. This enables grouping of segments at the RLC layer, thereby improving the transmission performance of the communication system.
  • FIG. 1 is a flowchart of a method for segment grouping according to an embodiment of the present disclosure
  • FIG. 2 is a second flowchart of a method for segment grouping according to an embodiment of the present disclosure
  • FIG. 3 is a schematic diagram of a range of number lengths provided by an embodiment of the present disclosure.
  • FIG. 4 is a second schematic diagram of a range of number lengths provided by an embodiment of the present disclosure.
  • FIG. 5 is one structural diagram of a receiving end provided by the present disclosure.
  • FIG. 6 is a second structural diagram of a receiving end provided by the present disclosure.
  • Figure 7 is a third structural diagram of the receiving end provided by the present disclosure.
  • Figure 8 is a fourth structural diagram of the receiving end provided by the present disclosure.
  • Figure 9 is a fifth structural diagram of the receiving end provided by the present disclosure.
  • Figure 10 is a sixth structural diagram of the receiving end provided by the present disclosure.
  • Figure 11 is a seventh structural diagram of the receiving end provided by the present disclosure.
  • Figure 12 is a structural diagram of the receiving end provided by the present disclosure.
  • Figure 13 is a ninth structural diagram of the receiving end provided by the present disclosure.
  • Figure 14 is a structural diagram of the receiving end provided by the present disclosure.
  • 15 is a structural diagram of a network side device provided by the present disclosure.
  • 16 is a structural diagram of a user terminal provided by the present disclosure.
  • FIG. 1 is a flowchart of a method for segment grouping according to an embodiment of the present disclosure. The method is applied to a receiving end, as shown in FIG. 1, and includes the following steps:
  • Step 101 If the receiving end receives the target data packet in the RLC layer, determine whether the target data packet is a segment of the RLC data packet by using a packet header of the target data packet, and if yes, execute step 102, if Otherwise, the process may be ended or the target data packet may be reported to the PDCP layer, where the example is terminated in the drawing.
  • the target data packet may be any data packet reported by the bottom layer (for example, the MAC layer) to the RLC layer, and the target data packet may be a segment of the RLC data packet, or may not be a segment of the RLC data packet, for example: Complete RLC packet.
  • step 101 it is determined whether the target data packet is a segment of the RLC data packet. If it is a segment of the RLC data packet, the group packet function is enabled, that is, step 102 is performed.
  • Step 102 Arrange the segments of the RLC data packet received by the receiving end.
  • the arrangement here may be arranged in a specific order, or may be a random arrangement, and the embodiment of the present disclosure is not limited thereto.
  • Step 103 If the receiving end receives all the segments of the RLC data packet, group all the segments of the RLC data packet to obtain the RLC data packet.
  • the group packet is sent to report the RLC data packet after the group packet to the PDCP layer.
  • the all segments of the RLC data packet may be determined according to the segment identifier or the segment location information carried in the segment data packet that receives the RLC data packet, and whether all segments of the RLC data packet are received.
  • Step 104 Report the RLC data packet to the PDCP layer.
  • the RLC data packet may be reported to the PDCP layer, where the report may be reported as one RLC data packet per packet, and of course, the data packet of the successful packet may reach a preset number. After that, the present invention is not limited thereto.
  • the grouping of the RLC layer may be performed by using the step 101 to the step 103, and the grouping of the RLC layer may be performed after the reordering detection function of the RLC layer is removed.
  • Package function By performing grouping at the RLC layer, the underlying layer transmission can be supported, thereby improving transmission performance.
  • the receiving end may be a device that receives a data packet in the communication system, and of course, the device may also send a data packet.
  • a user terminal or a network side device wherein the user terminal can be a mobile phone, a tablet personal computer, a laptop computer, a personal digital assistant (PDA), a mobile internet device ( Terminal Internet devices such as Mobile Internet Device (MID) or Wearable Device.
  • the network side device may be a transmission receiving point (TRP), or may be a base station, the base station may be a macro station, such as an LTE eNB, a 5G NR NB, or the like, or the network side device 12 may be an access point (AP, Access point).
  • TRP transmission receiving point
  • AP Access point
  • the receiving end receives the target data packet in the radio link control RLC layer, determining, by the packet header of the target data packet, whether the target data packet is a segment of the RLC data packet;
  • the target data packet is a segment of the RLC data packet, and the segments of the RLC data packet received by the receiving end are arranged; if the receiving end receives all segments of the RLC data packet, Then, all the segments of the RLC data packet are grouped to obtain the RLC data packet; and the RLC data packet is reported to the PDCP layer.
  • FIG. 2 is a flowchart of a method for segment grouping according to an embodiment of the present disclosure. The method is applied to a receiving end.
  • the main difference between this embodiment and the embodiment shown in FIG. 1 is that in FIG.
  • the step of notifying the failed data packet to the RLC layer is determined. As shown in Figure 2, the following steps are included:
  • Step 201 If the receiving end receives the target data packet in the RLC layer, determine, by the packet header of the target data packet, whether the target data packet is a segment of the RLC data packet, and if yes, perform step 202, if Otherwise, the process may be ended or the target data packet may be reported to the PDCP layer, where the example is terminated in the drawing.
  • the target data packet may be any data packet reported by the bottom layer (for example, the MAC layer) to the RLC layer, and the target data packet may be a segment of the RLC data packet, or may not be a segment of the RLC data packet, for example: Complete RLC packet.
  • step 101 it is determined whether the target data packet is a segment of the RLC data packet. If it is a segment of the RLC data packet, the group packet function is enabled, that is, step 102 is performed.
  • the RLC data packet may be understood as an RLC Service Data Unit (SDU).
  • SDU RLC Service Data Unit
  • the step of determining, by the packet header of the target data packet, whether the target data packet is a segment of the RLC data packet includes: determining whether the packet header of the target data packet includes a format indication of the segmentation packet Determining, if the packet header of the target data packet includes a format indication of the segmentation packet, determining that the target data packet is a segment of the RLC data packet; or determining whether the packet header of the target data packet includes segmentation location information, if The header of the target data packet includes segment location information, and then the target data packet is determined to be a segment of the RLC data packet.
  • the format indication may be a segment data packet for indicating that the target data packet is an RLC data packet, so that the target data packet may be displayed by the format indication as a segment of the RLC data packet.
  • the method further includes: if the receiving end receives the target at the RLC layer And determining, according to the number of the target data packet, whether the target data packet is a duplicate RLC data packet; if the target data packet is a duplicate RLC data packet, discarding the target data packet; if the target data packet is If the data packet is not a duplicate RLC data packet, the step of determining, by the packet header of the target data packet, whether the target data packet is a segment of the RLC data packet is performed.
  • the target data packet when the target data packet is received, it is determined whether it is a duplicate RLC data packet. If the RLC data packet is repeated, that is, the target data packet has been received, thereby discarding the target data packet to avoid generating the RLC data packet. The storage space is wasted to save storage space.
  • the determining whether the target data packet is a duplicate RLC data packet may be determined based on the state information stored or recorded by the receiving end, for example, determining whether the target data packet is a data packet that has been reported to the PDCP layer, or determining whether the packet is already grouped. A successful data packet or the like is not limited in this embodiment of the present disclosure.
  • the foregoing method further includes:
  • the status information of the RLC layer where the status information includes a status and a number of each RLC data packet in a preset number length range, and the status of each RLC data packet includes that the PDCP layer has been reported to the PDCP layer.
  • the package is successful, is being packaged, or is not received.
  • the preset number length range may be agreed by the protocol.
  • the number of the RLC data packet recorded by the receiving end is half of the maximum value of the RLC number. If the maximum number is 10, the receiving end stores a maximum of 5 Numbering.
  • the number may also be referred to as a serial number (SN).
  • the preset number length range or the receiving end is pre-configured. For example: 5, 6 or 7, etc., that is, the receiving end only records the number of 5, 6 or 7 packets at a time.
  • the data packet of the preset number length range is changed with time or the reception of the data packet.
  • the receiving end first records the status of the data packet with the number 1 to 5, but the 5 data packets may include the report.
  • the packet is successful, the packet is being packaged, and/or the packet is not received, that is, some of the 5 data packets may be data packets reported to the PDCP layer, and some may be a packet.
  • Successful packets some can be packets that are being packaged, or some can be unreceived packets.
  • the receiver records packets numbered 2 to 6, 3 to 7, 4 to 8, 5 to 9, 6 to 10, and 7 to 1, where the maximum number is 10 For example, after the number reaches 10, the flip starts from 1 and continues.
  • the state of each data packet can be known in time, so that the receiving end can flexibly process each data packet to improve the flexibility of the system.
  • the method further includes: determining an upper boundary number and a lower boundary number of the preset number length range.
  • the status information of the recording RLC layer and the execution order of determining the upper boundary number and the lower boundary number of the preset number length range are not limited, and may be first recorded, or determined to be re-recorded, or simultaneously performed. In this implementation manner, since the upper boundary number and the lower boundary number of the preset number length range are determined, it is possible to effectively ensure that the receiving end only records the status and number of each RLC data packet within the preset number length range, thereby saving The storage space at the receiving end.
  • the upper boundary number of the preset number length range is: the largest number in the number of the received data packet, and the largest number in the number of the received data packet plus 1.
  • the maximum number in the number of the received data packet is decremented by 1 or the lower boundary number of the preset number length range plus the preset number length range is further decreased by 1;
  • the upper boundary number of the preset number length range is: the largest number among the numbers flipped in the number of the received data packet, and the number inverted in the number of the received data packet.
  • the result is a lower boundary number of the preset number length range plus a calculation result obtained by subtracting 1 from the preset number length range.
  • the lower boundary number of the preset number length range is: the smallest number in the number of the received data packet, and the smallest number in the number of the received data packet plus 1.
  • the minimum number in the number of the received data packet is decremented by 1 or the upper boundary number of the preset number length range minus the preset number length range plus one;
  • the lower boundary number of the preset number length range is: the smallest number in the number of the unreversed number in the received data packet number, and the number of the received data packet is not inverted.
  • the minimum number in the number plus 1, the minimum number in the number of the unreversed number in the received packet minus 1 or the number obtained by adding the second calculation result to the preset maximum number, the second calculation result is The calculation result of the upper boundary number of the preset number length range minus the preset number length range plus one.
  • the method before the step of determining the upper boundary number and the lower boundary number of the preset number length range, the method further includes: if receiving the data packet, before the step of determining the upper boundary number and the lower boundary number of the preset number length range If the number is less than or equal to the lower boundary number of the preset number length range, it is determined that the number of the data packet is reversed; or if the number of the received data packet is less than or equal to the third calculation result, determining that the number of the data packet is reversed, The third calculation result is a result obtained by subtracting the preset number length range from the lower boundary number of the preset number length range.
  • the step of determining, according to the number of the target data packet, whether the target data packet is a duplicate RLC data packet includes:
  • the data packet is a duplicate RLC data packet
  • the target data packet may not be a duplicate RLC data packet.
  • the target data packet is determined to be a duplicate RLC data packet.
  • whether the number and the target data packet exist in the preset number length range may be determined by using the foregoing.
  • the manner of the same number of data packets is determined to be a duplicate RLC data packet.
  • the method may be directly used for the determination.
  • the three types of determining manners can accurately determine whether the target data packet is a duplicate RLC data packet, so as to improve the performance of the receiving end.
  • Step 202 Arrange the segments of the RLC data packet received by the receiving end.
  • the step of arranging the segments of the RLC data packet received by the receiving end includes: sequentially arranging the segments of the RLC data packet received by the receiving end in a segment order Or randomly arranging the segments of the RLC data packet received by the receiving end.
  • the ordering may be performed in a sequence of segments.
  • the upper layer can facilitate the high-level identification of each segment after receiving the RLC data packet, so as to improve the performance of the receiving end. By randomly arranging, it is possible to quickly arrange and group the segments to improve the efficiency of the package.
  • the method further includes: if the target data packet is an RLC data packet Segmentation, determining whether the target data packet is a repeated segment of the segment of the RLC data packet received by the receiving end; if the target data packet is the RLC data received by the receiving end The segmented repeated segment of the packet discards the target data packet.
  • the determining whether the target data packet is a repeated segment of the segment of the RLC data packet received by the receiving end may be, determining whether the segment in the RLC data packet received by the RLC layer is present or not
  • the target data packet is segmented in the same manner. If yes, it can be determined that the segment is repeatedly received, that is, the target data packet is a repeated segment. Since the repeated segmentation is discarded, the repeated segmentation can be avoided to improve the correctness of the packet, and the storage space of the receiving end can also be saved.
  • Step 203 If the receiving end receives all the segments of the RLC data packet, group all the segments of the RLC data packet to obtain the RLC data packet.
  • the group packet is sent to report the RLC data packet after the group packet to the PDCP layer.
  • the all segments of the RLC data packet may be determined according to the segment identifier or the segment location information carried in the segment data packet that receives the RLC data packet, and whether all segments of the RLC data packet are received.
  • the method further includes: stopping the RLC data if a timer expires Packet grouping process of the packet, and discarding the segment of the RLC data packet stored by the receiving end.
  • the grouping process of the RLC data packet is stopped, and the segment of the RLC data packet stored by the receiving end is discarded, thereby saving power consumption and storage space of the receiving end.
  • the first timeout timeout indicates that the segmentation of the RLC data packet is not successfully received, and the packet cannot be successfully packaged, and the stored segment of the RLC data packet is discarded.
  • the duration of the first timer may be pre-configured.
  • the timer includes: the receiving end receives the segmentation start timer of the RLC data packet for the first time; or the receiving end receives the segmentation of the RLC data packet again, and receives the segment again. a segmentation timer to the RLC data packet; or the receiving end arranges the segments of the received RLC data packet in a segmentation order, if the two adjacent segments are sequentially arranged There is a timer that does not receive the segmentation.
  • the timer is started, and the timer is restarted every time the segment of the RLC data packet is received, and After the segmentation of the RLC data packet is arranged in the segmentation order, if there are segments in the middle of the two adjacent segments that are sequentially arranged, the segment is not received, that is, after the segment is not received, the timer is started. If the first timer expires, the segment of the RLC data packet stored by the receiving end is discarded, so that the storage space of the receiving end can be saved.
  • the method further includes: stopping the timer if the receiving end receives all the segments of the RLC data packet, and the timer does not time out.
  • the first timer after receiving all the segments of the RLC data packet, the first timer does not time out, stopping the first timer, so that all the points of the RLC data packet are avoided. After the segment, the power consumption is also wasted, and the first timer is stopped after the group packet. This prevents the first timer from timing out after the packet is successfully generated, and the segment that discards the RLC packet is discarded. The resulting RLC packet error.
  • Step 204 Report the RLC data packet to the PDCP layer.
  • the RLC data packet may be reported to the PDCP layer, where the report may be reported as one RLC data packet per packet, and of course, the data packet of the successful packet may reach a preset number. After that, the present invention is not limited thereto.
  • the method further includes:
  • Step 205 After receiving, by the PDCP layer, the RLC data packet reported by the RLC layer, notify the RLC layer of the failed data packet for determining a failed data packet that fails to be received.
  • the failure data packet may be a data packet that determines that the reception fails after the PDCP layer sorts the received RLC data packets. For example, after the PDCP layer receives the RLC data packet reported by the RLC layer, the number of the received RLC data packet is recorded in the PDCP layer, and the received RLC layer data packet is sorted according to the number. The sorting process of the PDCP layer determines whether there is a failed RLC data packet that has not been successfully received. And after determining that the data packet is failed, the second timer may be started. If the failed RLC data packet has not been successfully received when the timer expires, the RLC data that is numbered after the number of the failed data packet is used. The packet is reported to the upper layer in turn, and the number of the failed data packet is sent to the RLC layer. It should be noted that the RLC data packet can be regarded as a PDCP data packet on the PDCP layer.
  • step 205 the data packet that fails to receive the PDCP layer is notified to the RLC layer, so that the RLC layer knows the reception status of the PDCP layer in time to improve the overall performance of the receiving end.
  • step 204 is performed first and then step 205 is performed, and in other scenarios, it may be first.
  • Step 205 is executed to perform step 204 or simultaneously. Because the failed packet can be the packet before the RLC packet reported in step 204.
  • the step of notifying the failed data packet to the RLC layer for determining a failed data packet that fails to be received include:
  • the number of the failed data packet at the RLC layer can be notified to the RLC layer, so that the RLC layer can accurately and quickly determine the failed data packet.
  • the method further includes: if the RLC layer stores the segment of the failed data packet And discarding the segment of the failed data packet; or if the grouping process of the failed data packet is being performed at the RLC layer, stopping the grouping process of the failed data packet, stopping the grouping process to be started The timer, as well as the segment used by the grouping process that drops the failed packet.
  • the step may be that after the RLC layer receives the number of the failed data packet sent by the PDCP layer, the segment of the failed data packet may be discarded, because the data packet may not be reported to the PDCP layer, thereby saving storage at the receiving end. space. And after the RLC layer receives the number of the failed data packet sent by the PDCP layer, if the RLC layer starts the grouping process of the failed data packet, the group packet is stopped, the timer that is started by the grouping process is stopped, and the storage is discarded. The fragmentation of the failed data packet, because the data packet can be reported to the PDCP layer, thereby saving power consumption and storage space at the receiving end.
  • the receiving end receives the target data packet in the radio link control RLC layer, determining, by the packet header of the target data packet, whether the target data packet is a segment of the RLC data packet;
  • the target data packet is a segment of the RLC data packet, and the segments of the RLC data packet received by the receiving end are arranged; if the receiving end receives all segments of the RLC data packet, Then, all the segments of the RLC data packet are grouped to obtain the RLC data packet; the RLC data packet is reported to the PDCP layer; after the PDCP layer receives the RLC data packet reported by the RLC layer, For the failed packet that determines the failure of reception, the failed packet is notified to the RLC layer.
  • the RLC layer is notified of the reception of the PDCP layer in time to improve the reception end of the receiving end by notifying the RLC layer of the data packet that fails to receive the PDCP layer. performance.
  • FIG. 5 is a structural diagram of a receiving end according to an embodiment of the present disclosure, which can implement the details of the segment grouping method in the embodiment shown in FIG. 1 and FIG. 2, and achieve the same effect.
  • the receiving end 500 includes: a first segment determining module 501, a segment arranging module 502, a grouping module 503, and a reporting module 504.
  • the first segment determining module 501 is connected to the segment arranging module 502.
  • the segment arrangement module 502 is also connected to the group package module 503, the group package module 503 and the report module 504, wherein:
  • the first segment determining module 501 is configured to: if the receiving end receives the target data packet in the radio link control RLC layer, determine, by using a packet header of the target data packet, whether the target data packet is an RLC data packet. Segmentation
  • the segmentation module 502 is configured to: if the target data packet is a segment of the RLC data packet, arrange the segments of the RLC data packet received by the receiving end;
  • the grouping module 503 is configured to: if the receiving end receives all the segments of the RLC data packet, group all the segments of the RLC data packet to obtain the RLC data packet.
  • the reporting module 504 is configured to report the RLC data packet to the PDCP layer.
  • the first segment determining module 501 is configured to determine whether a packet header of the target data packet includes a format indication of the segmentation packet, and if the packet header of the target data packet includes a format indication of the segmentation packet, determining The target data packet is a segment of the RLC data packet; or
  • the first segment determining module 501 is configured to determine whether the packet header of the target data packet includes segment location information, and if the packet header of the target data packet includes segmentation location information, determining that the target data packet is RLC data. Segmentation of the package.
  • the receiving end 500 further includes:
  • the second segment determining module 505 is configured to determine, if the target data packet is a segment of the RLC data packet, whether the target data packet is a repeat of the segment of the RLC data packet received by the receiving end Segmentation
  • the first discarding module 506 is configured to discard the target data packet if the target data packet is a repeated segment of the segment of the RLC data packet received by the receiving end.
  • the segmentation module 502 is configured to sequentially arrange segments of the RLC data packet received by the receiving end in a segmentation order; or the segmentation module 502 is configured to: The segments of the RLC data packet received by the receiving end are randomly arranged.
  • the receiving end 500 further includes:
  • the second discarding module 507 is configured to stop the grouping process of the RLC data packet if the timer expires, and discard the segment of the RLC data packet stored by the receiving end.
  • the timer includes: receiving, by the receiving end, a segment open timer of the RLC data packet for the first time; or the receiving end receives the segment of the RLC data packet again, Receiving a segmentation open timer of the RLC data packet; or the receiving end arranging the received segments of the RLC data packet in a segmentation order, if two adjacent segments are sequentially arranged There is a timer in the middle that does not receive the segmentation.
  • the receiving end 500 further includes:
  • the stopping module 508 is configured to stop the timer if the receiving end receives all segments of the RLC data packet and the timer does not time out.
  • the receiving end 500 further includes:
  • the data packet determining module 509 is configured to determine, according to the number of the target data packet, whether the target data packet is a duplicate RLC data packet, if the receiving end receives the target data packet at the RLC layer;
  • a third discarding module 5010 configured to discard the target data packet if the target data packet is a duplicate RLC data packet
  • the first segment determining module 501 is configured to: if the target data packet is not a duplicate RLC data packet, perform, by using a packet header of the target data packet, whether the target data packet is a segment of an RLC data packet. A step of.
  • the receiving end 500 further includes:
  • a recording module 5011 configured to record status information of the RLC layer
  • the status information includes a status and a number of each RLC data packet in a preset number length range, and the status of each RLC data packet includes that the PDCP layer has been reported to the PDCP layer, the group packet is successful, is being packaged, or is not received. .
  • the receiving end 500 further includes:
  • the first determining module 5012 is configured to determine an upper boundary number and a lower boundary number of the preset number length range.
  • the upper boundary number of the preset number length range is: a maximum number in the number of the received data packet, and a maximum number in the number of the received data packet. Adding 1. The maximum number in the number of received data packets minus 1 or the lower boundary number of the preset number length range plus the preset number length range is further reduced by 1;
  • the upper boundary number of the preset number length range is: the largest number among the numbers flipped in the number of the received data packet, and the number inverted in the number of the received data packet.
  • the result is a lower boundary number of the preset number length range plus a calculation result obtained by subtracting 1 from the preset number length range.
  • the lower boundary number of the preset number length range is: a minimum number in the number of the received data packet, and a minimum number in the number of the received data packet. Adding 1, the minimum number in the number of received data packets minus 1 or the upper boundary number of the preset number length range minus the preset number length range plus 1;
  • the lower boundary number of the preset number length range is: the smallest number in the number of the unreversed number in the received data packet number, and the number of the received data packet is not inverted.
  • the minimum number in the number plus 1, the minimum number in the number of the unreversed number in the received packet minus 1 or the number obtained by adding the second calculation result to the preset maximum number, the second calculation result is The calculation result of the upper boundary number of the preset number length range minus the preset number length range plus one.
  • the receiving end 500 further includes:
  • the second determining module 5013 is configured to determine, if the number of the data packet is less than or equal to the lower boundary number of the preset number length range, determine that the number of the data packet is reversed; or
  • the third determining module 5014 is configured to: if the number of the received data packet is less than or equal to the third calculation result, determine that the number of the data packet is reversed, and the third calculation result is a lower boundary number of the preset number length range The result obtained by subtracting the preset number length range is obtained.
  • the data packet determining module 509 is configured to determine whether the number of the target data packet is a number of a data packet that has been reported to the PDCP layer, if the number of the target data packet is reported to the The number of the data packet of the PDCP layer is determined to be the duplicate RLC data packet; or the data packet determining module 509 is configured to determine whether the number of the target data packet is the number of the data packet that the packet is successful. If the number of the target data packet is the number of the data packet that the packet is successful, determining that the target data packet is a duplicate RLC data packet; or the data packet determining module 509 is configured to determine the preset number length range.
  • the target data packet is determined to be a duplicate RLC. data pack.
  • the receiving end 500 further includes:
  • the notification module 5015 is configured to: after the PDCP layer receives the RLC data packet reported by the RLC layer, notify the RLC layer of the failed data packet for determining a failed data packet that fails to be received.
  • the notification module 5015 is configured to: after receiving, by the PDCP layer, the RLC data packet reported by the RLC layer, record the number of the received RLC data packet at the PDCP layer, and determine that the failure data of the receiving failure is determined. The number of the RLC layer is encapsulated, and the number of the failed data packet at the RLC layer is notified to the RLC layer.
  • the receiving end 500 further includes:
  • a fourth discarding module 5016 configured to discard the segment of the failed data packet if the RLC layer stores the segment of the failed data packet;
  • a fifth discarding module 5017 configured to stop the grouping process of the failed data packet, stop the timer of the grouping process, and stop the timer of the grouping process, if the grouping process of the failed data packet is being performed in the RLC layer, and The segment used by the grouping process that discards the failed packet.
  • the receiving end if the receiving end receives the target data packet in the radio link control RLC layer, it is determined whether the target data packet is an RLC data packet by using a packet header of the target data packet. If the target data packet is a segment of the RLC data packet, the segment of the RLC data packet received by the receiving end is arranged; if the receiving end receives the RLC data packet All the segments of the RLC data packet are grouped to obtain the RLC data packet; the RLC data packet is reported to the PDCP layer. This enables grouping of segments at the RLC layer to improve the transmission performance of the communication system.
  • FIG. 15 is a structural diagram of a network side device according to an embodiment of the present disclosure, which can implement the details of the segment grouping method in the embodiment shown in FIG. 1 and FIG. 2, and achieve the same effect.
  • the network side device 1500 includes: a processor 1501, a transceiver 1502, a memory 1503, a user interface 1504, and a bus interface, where:
  • the processor 1501 is configured to read a program in the memory 1503 and perform the following process:
  • the network side device receives the target data packet at the RLC layer, determining, by the packet header of the target data packet, whether the target data packet is a segment of the RLC data packet; if the target data packet is an RLC data packet Segmenting, the segment of the RLC data packet received by the network side device is arranged; if the network side device receives all segments of the RLC data packet, the RLC data packet is All the segments are grouped to obtain the RLC data packet; the RLC data packet is reported to the PDCP layer.
  • the transceiver 1502 is configured to receive and transmit data under the control of the processor 1501.
  • the bus architecture may include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 1501 and various circuits of memory represented by memory 1503.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein.
  • the bus interface provides an interface.
  • Transceiver 1502 can be a plurality of components, including a transmitter and a receiver, providing means for communicating with various other devices on a transmission medium.
  • the user interface 1504 may also be an interface capable of externally connecting the required devices, including but not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.
  • the processor 1501 is responsible for managing the bus architecture and general processing, and the memory 1503 can store data used by the processor 1501 when performing operations.
  • the processor 1501 is further configured to: determine whether the packet header of the target data packet includes a format indication of the segmentation packet, and if the packet header of the target data packet includes a format indication of the segmentation packet, determine the target data.
  • the packet is a segment of the RLC data packet; or determining whether the packet header of the target data packet includes segmentation location information, and if the packet header of the target data packet includes segmentation location information, determining that the target data packet is an RLC data packet Segmentation.
  • the processor 1501 is further configured to: if the target data packet is a segment of the RLC data packet, determine whether the target data packet is a segment of the RLC data packet received by the network side device Repeating the segmentation; if the target data packet is a repeated segment of the segment of the RLC data packet received by the network side device, discarding the target data packet.
  • the processor 1501 is further configured to: sequentially arrange the segments of the RLC data packet received by the network side device in a segmentation order; or receive the RLC data received by the network side device.
  • the segments of the packet are randomly arranged.
  • the processor 1501 is further configured to: if the timer expires, stop the grouping process of the RLC data packet, and discard the segment of the RLC data packet stored by the network side device.
  • the timer includes: receiving, by the network side device, a segment open timer of the RLC data packet for the first time; or after receiving, by the network side device, the segment of the RLC data packet, Receiving a segmentation open timer of the RLC data packet again; or the network side device arranging the received segments of the RLC data packet in a segmentation order, if two phases are sequentially arranged There is a timer in the middle of the neighbor segment that does not receive the segmentation.
  • the processor 1501 is further configured to: if the network side device receives all the segments of the RLC data packet, and the timer does not time out, stop the timer.
  • the processor 1501 is further configured to: if the network side device receives the target data packet at the RLC layer, determine, according to the number of the target data packet, whether the target data packet is a duplicate RLC data packet; And the target data packet is a duplicate RLC data packet, and the target data packet is discarded; if the target data packet is not a duplicate RLC data packet, performing, by using a packet header of the target data packet, determining the target data packet. Whether it is a step of segmentation of the RLC packet.
  • the processor 1501 is further configured to: record status information of the RLC layer, where the status information includes a status and a number of each RLC data packet within a preset number length range, and the RLC data packets are The status includes the PDCP layer that has been reported, the packet is successful, is being packaged, or not received.
  • the processor 1501 is further configured to: determine an upper boundary number and a lower boundary number of the preset number length range.
  • the upper boundary number of the preset number length range is: a maximum number in the number of the received data packet, and a maximum number in the number of the received data packet. Adding 1. The maximum number in the number of received data packets minus 1 or the lower boundary number of the preset number length range plus the preset number length range is further reduced by 1;
  • the upper boundary number of the preset number length range is: the largest number among the numbers flipped in the number of the received data packet, and the number inverted in the number of the received data packet.
  • the result is a lower boundary number of the preset number length range plus a calculation result obtained by subtracting 1 from the preset number length range;
  • the lower boundary number of the preset number length range is: a minimum number in the number of the received data packet, and a minimum number in the number of the received data packet. Adding 1, the minimum number in the number of received data packets minus 1 or the upper boundary number of the preset number length range minus the preset number length range plus 1;
  • the lower boundary number of the preset number length range is: the smallest number in the number of the unreversed number in the received data packet number, and the number of the received data packet is not inverted.
  • the minimum number in the number plus 1, the minimum number in the number of the unreversed number in the received packet minus 1 or the number obtained by adding the second calculation result to the preset maximum number, the second calculation result is The calculation result of the upper boundary number of the preset number length range minus the preset number length range plus one.
  • the processor 1501 is further configured to: if the number of the received data packet is less than or equal to the lower boundary number of the preset number length range, determine that the number of the data packet is reversed; or if the number of the data packet is received If the result of the third calculation is less than or equal to the third calculation result, it is determined that the number of the data packet is reversed, and the third calculation result is a result obtained by subtracting the length of the preset number from the lower boundary number of the preset number length range.
  • the processor 1501 is further configured to: determine whether the number of the target data packet is a number of the data packet that has been reported to the PDCP layer, if the number of the target data packet is reported to the PDCP layer.
  • the number of the data packet is determined to be the duplicate RLC data packet; or the number of the target data packet is determined to be the number of the data packet that the packet is successful, if the target data packet number is a packet If the number of the successful data packet is determined, the target data packet is determined to be a duplicate RLC data packet; or whether the data packet with the same number as the target data packet is present in the preset number length range, if the If there is a data packet whose number is the same as the number of the target data packet, the target data packet is determined to be a duplicate RLC data packet.
  • the processor 1501 is further configured to: after receiving, by the PDCP layer, the RLC data packet reported by the RLC layer, notify the RLC layer of the failed data packet for determining a failed data packet that fails to be received.
  • the processor 1501 is further configured to: record, at the PDCP layer, a number of the received RLC data packet, and determine a number of the failed data packet that is determined to be failed to be received in the RLC layer, and the failed data packet is The number of the RLC layer informs the RLC layer.
  • the processor 1501 is further configured to: if the RLC layer stores the segment of the failed data packet, discard the segment of the failed data packet; or if the failure is being performed at the RLC layer
  • the grouping process of the data packet stops the grouping process of the failed data packet, stops the timer that is started by the grouping packet process, and discards the segment used by the grouping process of the failed data packet.
  • the network side device may be a Transmission Reception Point (TRP), or may be a base station, and the base station may be a macro station, such as an LTE eNB, a 5G NR NB, or the like. Or the network side device may be an access point (AP).
  • TRP Transmission Reception Point
  • AP access point
  • the network side device In the network side device provided by the embodiment of the present disclosure, if the network side device receives the target data packet at the RLC layer, it is determined whether the target data packet is a part of the RLC data packet by using a packet header of the target data packet. And if the target data packet is a segment of the RLC data packet, the segment of the RLC data packet received by the network side device is arranged; if the network side device receives the RLC data packet All the segments of the RLC data packet are grouped to obtain the RLC data packet; the RLC data packet is reported to the PDCP layer. This enables grouping of segments at the RLC layer to improve the transmission performance of the communication system.
  • FIG. 16 is a structural diagram of a user terminal according to an embodiment of the present disclosure, which can implement the details of the segment grouping method in the embodiment shown in FIG. 1 and FIG. 2, and achieve the same effect.
  • the user terminal 1600 includes a radio frequency (RF) circuit 1610, a memory 1620, an input unit 1630, a display unit 1640, a processor 1650, an audio circuit 1660, a communication module 1670, and a power supply 1680.
  • RF radio frequency
  • the input unit 1630 can be configured to receive numeric or character information input by the user, and generate signal input related to user settings and function control of the user terminal 1600.
  • the input unit 1630 may include a touch panel 1631.
  • the touch panel 1631 also referred to as a touch screen, can collect touch operations on or near the user (such as the operation of the user using any suitable object or accessory such as a finger or a stylus on the touch panel 1631), and according to the preset
  • the programmed program drives the corresponding connection device.
  • the touch panel 1631 may include two parts: a touch detection device and a touch controller.
  • the touch detection device detects the touch orientation of the user, and detects a signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts the touch information into contact coordinates, and sends the touch information.
  • the processor 1650 is provided and can receive commands from the processor 1650 and execute them.
  • the touch panel 1631 can be implemented in various types such as resistive, capacitive, infrared, and surface acoustic waves.
  • the input unit 1630 may further include other input devices 1632, which may include, but are not limited to, physical keyboards, function keys (such as volume control buttons, switch buttons, etc.), trackballs, mice, joysticks, and the like. One or more of them.
  • the display unit 1640 can be used to display information input by the user or information provided to the user and various menu interfaces of the user terminal 1600.
  • the display unit 1640 can include a display panel 1641.
  • the display panel 1641 can be configured in the form of an LCD or an Organic Light-Emitting Diode (OLED).
  • the touch panel 1631 may cover the display panel 1641 to form a touch display screen, and when the touch display screen detects a touch operation on or near it, it is transmitted to the processor 1650 to determine the type of the touch event, and then the processor The 1650 provides a corresponding visual output on the touch display depending on the type of touch event.
  • the touch display includes an application interface display area and a common control display area.
  • the arrangement manner of the application interface display area and the display area of the common control is not limited, and the arrangement manner of the two display areas can be distinguished by up-and-down arrangement, left-right arrangement, and the like.
  • the application interface display area can be used to display the interface of the application. Each interface can contain interface elements such as at least one application's icon and/or widget desktop control.
  • the application interface display area can also be an empty interface that does not contain any content.
  • the common control display area is used to display controls with high usage, such as setting buttons, interface numbers, scroll bars, phone book icons, and the like.
  • the processor 1650 is a control center of the user terminal 1600, and connects various parts of the entire mobile phone by using various interfaces and lines, by running or executing software programs and/or modules stored in the first memory 1621, and calling the second storage.
  • the data in the memory 1622 performs various functions and processing data of the user terminal 1600, thereby integrally monitoring the user terminal 1600.
  • the processor 1650 can include one or more processing units.
  • the processor 1650 is configured to: if the user terminal is on a wireless link Controlling the RLC layer to receive the target data packet, and determining, by the packet header of the target data packet, whether the target data packet is a segment of the RLC data packet; if the target data packet is a segment of the RLC data packet, Arranging the segments of the RLC data packet received by the user terminal; if the user terminal receives all segments of the RLC data packet, grouping all segments of the RLC data packet, Obtaining the RLC data packet; reporting the RLC data packet to the PDCP layer.
  • the processor 1650 is further configured to: determine whether the packet header of the target data packet includes a format indication of the segmentation packet, and if the packet header of the target data packet includes a format indication of the segmentation packet, determine the target data.
  • the packet is a segment of the RLC data packet; or determining whether the packet header of the target data packet includes segmentation location information, and if the packet header of the target data packet includes segmentation location information, determining that the target data packet is an RLC data packet Segmentation.
  • the processor 1650 is further configured to: if the target data packet is a segment of the RLC data packet, determine whether the target data packet is a segment of the RLC data packet received by the user terminal. Repeating the segmentation; if the target data packet is a repeated segment of the segment of the RLC data packet received by the user terminal, discarding the target data packet.
  • the processor 1650 is further configured to: sequentially arrange the segments of the RLC data packet received by the user terminal in a segmentation order; or receive the RLC data packet received by the user terminal. Segments are randomly arranged.
  • the processor 1650 is further configured to: if the timer expires, stop the grouping process of the RLC data packet, and discard the segment of the RLC data packet stored by the user terminal.
  • the timer includes: the user terminal first receives a segmentation open timer of the RLC data packet; or the user terminal receives the segment of the RLC data packet again, Receiving a segmentation open timer of the RLC data packet; or the user terminal arranging the received segments of the RLC data packet in a segmentation order, if two adjacent segments are sequentially arranged There is a timer in the middle that does not receive the segmentation.
  • the processor 1650 is further configured to: if the user terminal receives all the segments of the RLC data packet, and the timer does not time out, stop the timer.
  • the processor 1650 is further configured to: if the user terminal receives the target data packet at the RLC layer, determine, according to the number of the target data packet, whether the target data packet is a duplicate RLC data packet; If the target data packet is a duplicate RLC data packet, discarding the target data packet; if the target data packet is not a duplicate RLC data packet, performing, by using a packet header of the target data packet, determining whether the target data packet is The step of segmenting the RLC packet.
  • the processor 1650 is further configured to: record status information of the RLC layer, where the status information includes a status and a number of each RLC data packet within a preset number length range, and the RLC data packets are The status includes the PDCP layer that has been reported, the packet is successful, is being packaged, or not received.
  • the processor 1650 is further configured to: determine an upper boundary number and a lower boundary number of the preset number length range.
  • the upper boundary number of the preset number length range is: a maximum number in the number of the received data packet, and a maximum number in the number of the received data packet. Adding 1. The maximum number in the number of received data packets minus 1 or the lower boundary number of the preset number length range plus the preset number length range is further reduced by 1;
  • the upper boundary number of the preset number length range is: the largest number among the numbers flipped in the number of the received data packet, and the number inverted in the number of the received data packet.
  • the result is a lower boundary number of the preset number length range plus a calculation result obtained by subtracting 1 from the preset number length range;
  • the lower boundary number of the preset number length range is: a minimum number in the number of the received data packet, and a minimum number in the number of the received data packet. Adding 1, the minimum number in the number of received data packets minus 1 or the upper boundary number of the preset number length range minus the preset number length range plus 1;
  • the lower boundary number of the preset number length range is: the smallest number in the number of the unreversed number in the received data packet number, and the number of the received data packet is not inverted.
  • the minimum number in the number plus 1, the minimum number in the number of the unreversed number in the received packet minus 1 or the number obtained by adding the second calculation result to the preset maximum number, the second calculation result is The calculation result of the upper boundary number of the preset number length range minus the preset number length range plus one.
  • the processor 1650 is further configured to: if the number of the received data packet is less than or equal to the lower boundary number of the preset number length range, determine that the number of the data packet is reversed; or if the number of the data packet is received If the result of the third calculation is less than or equal to the third calculation result, it is determined that the number of the data packet is reversed, and the third calculation result is a result obtained by subtracting the length of the preset number from the lower boundary number of the preset number length range.
  • the processor 1650 is further configured to: determine whether the number of the target data packet is a number of the data packet that has been reported to the PDCP layer, if the number of the target data packet is reported to the PDCP layer.
  • the number of the data packet is determined to be the duplicate RLC data packet; or the number of the target data packet is determined to be the number of the data packet that the packet is successful, if the target data packet number is a packet If the number of the successful data packet is determined, the target data packet is determined to be a duplicate RLC data packet; or whether the data packet with the same number as the target data packet is present in the preset number length range, if the If there is a data packet whose number is the same as the number of the target data packet, the target data packet is determined to be a duplicate RLC data packet.
  • the processor 1650 is further configured to: after receiving, by the PDCP layer, the RLC data packet reported by the RLC layer, notify the RLC layer of the failed data packet for determining a failed data packet that fails to be received.
  • the processor 1650 is further configured to: record, at the PDCP layer, a number of the received RLC data packet, and determine a number of the failed data packet that is determined to be failed to be received in the RLC layer, and the failed data packet is The number of the RLC layer informs the RLC layer.
  • the processor 1650 is further configured to: if the RLC layer stores the segment of the failed data packet, discard the segment of the failed data packet; or if the failure is being performed at the RLC layer
  • the grouping process of the data packet stops the grouping process of the failed data packet, stops the timer that is started by the grouping packet process, and discards the segment used by the grouping process of the failed data packet.
  • the user terminal if the user terminal receives the target data packet in the radio link control RLC layer, it is determined whether the target data packet is an RLC data packet by using a packet header of the target data packet. If the target data packet is a segment of the RLC data packet, the segments of the RLC data packet received by the user terminal are arranged; if the user terminal receives the RLC data packet All the segments of the RLC data packet are grouped to obtain the RLC data packet; the RLC data packet is reported to the PDCP layer. This enables grouping of segments at the RLC layer to improve the transmission performance of the communication system.
  • the disclosed apparatus and method may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the embodiments of the present disclosure.
  • each functional unit in various embodiments of the present disclosure may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the functions, if implemented in the form of software functional units and sold or used as separate products, may be stored in a computer readable storage medium. Based on such understanding, a portion of the technical solution of the present disclosure that contributes in essence or to the related art or a part of the technical solution may be embodied in the form of a software product stored in a storage medium, including several The instructions are for causing a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present disclosure.
  • the foregoing storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.

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Abstract

本公开提供一种分段组包方法及接收端，该方法包括：若所述接收端在无线链路控制RLC层接收到目标数据包，则通过所述目标数据包的包头，判断所述目标数据包是否为RLC数据包的分段；若所述目标数据包为RLC数据包的分段，则将所述接收端接收到的所述RLC数据包的分段进行排列；若所述接收端接收到所述RLC数据包的所有分段，则将所述RLC数据包的所有分段进行组包，得到所述RLC数据包；向PDCP层上报所述RLC数据包。

Description

一种分段组包方法及接收端
相关申请的交叉引用
本申请主张于2017年3月31日提交中国专利局、申请号为201710210459.8的优先权，其全部内容据此通过引用并入本申请。
技术领域
本公开涉及通信技术领域，尤其涉及一种分段组包方法及接收端。
背景技术
随着通信技术的发展，在通信系统中需要传输的业务类型也越来越多，且不同的业务类型对传输性能的要求也不同的。为了满足一些业务的需求，本领域技术人员提出数据分段传输的概念，即一个数据包允许通过多个分段进行传输。其中，无线链路控制(Radio Link Control，RLC)层是通信系统中一个重要的协议层，可以将媒体接入控制(Media Access Control，MAC)层的数据，上报给包数据汇聚协议(Packet Data Convergence Protocol，包数据汇聚协议PDCP)层。本领域技术人员在实际中发现，如果能在RLC层将分段进行组包，就能够提高通信系统的传输性能。可见，如何实现在RLC层进行组包是当前急需要解决的技术问题。
发明内容
本公开实施例提供一种分段组包方法及接收端，以解决如何实现在RLC层进行组包的问题。
第一方面，本公开实施例提供了一种分段组包方法，应用于接收端，包括：
若所述接收端在RLC层接收到目标数据包，则通过所述目标数据包的包头，判断所述目标数据包是否为RLC数据包的分段；
若所述目标数据包为RLC数据包的分段，则将所述接收端接收到的所述RLC数据包的分段进行排列；
若所述接收端接收到所述RLC数据包的所有分段，则将所述RLC数据包的所有分段进行组包，得到所述RLC数据包；
向PDCP层上报所述RLC数据包。
第二方面，本公开实施例还提供一种接收端，包括：
第一分段判断模块，用于若所述接收端在无线链路控制RLC层接收到目标数据包，则通过所述目标数据包的包头，判断所述目标数据包是否为RLC数据包的分段；
分段排列模块，用于若所述目标数据包为RLC数据包的分段，则将所述接收端接收到的所述RLC数据包的分段进行排列；
组包模块，用于若所述接收端接收到所述RLC数据包的所有分段，则将所述RLC数据包的所有分段进行组包，得到所述RLC数据包；
上报模块，用于向PDCP层上报所述RLC数据包。
这样，本公开实施例中，若所述接收端在无线链路控制RLC层接收到目标数据包，则通过所述目标数据包的包头，判断所述目标数据包是否为RLC数据包的分段；若所述目标数据包为RLC数据包的分段，则将所述接收端接收到的所述RLC数据包的分段进行排列；若所述接收端接收到所述RLC数据包的所有分段，则将所述RLC数据包的所有分段进行组包，得到所述RLC数据包；向PDCP层上报所述RLC数据包。这样能够实现在RLC层将分段进行组包，从而提高通信系统的传输性能。
附图说明
为了更清楚地说明本公开实施例的技术方案，下面将对本公开实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本公开的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1是本公开实施例提供的分段组包方法的流程图之一；
图2是本公开实施例提供的分段组包方法的流程图之二；
图3是本公开实施例提供的编号长度范围的示意图之一；
图4是本公开实施例提供的编号长度范围的示意图之二；
图5是本公开提供的接收端的结构图之一；
图6是本公开提供的接收端的结构图之二；
图7是本公开提供的接收端的结构图之三；
图8是本公开提供的接收端的结构图之四；
图9是本公开提供的接收端的结构图之五；
图10是本公开提供的接收端的结构图之六；
图11是本公开提供的接收端的结构图之七；
图12是本公开提供的接收端的结构图之八；
图13是本公开提供的接收端的结构图之九；
图14是本公开提供的接收端的结构图之十；
图15是本公开提供的网络侧设备的结构图；
图16是本公开提供的用户终端的结构图。
具体实施方式
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，显然，所描述的实施例是本公开一部分实施例，而不是全部的实施例。基于本公开中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本公开保护的范围。
请参考图1，图1是本公开实施例提供的分段组包方法的流程图，该方法应用于接收端，如图1所示，包括以下步骤：
步骤101、若所述接收端在RLC层接收到目标数据包，则通过所述目标数据包的包头，判断所述目标数据包是否为RLC数据包的分段，若是，则执行步骤102，若否，则可以结束流程或者向PDCP层上报该目标数据包，其中，附图中以结束流程进行举例。
其中，目标数据包可以是底层(例如：MAC层)向RLC层上报的任意数据包，且目标数据包可以是RLC数据包的分段，也有可能不是RLC数据包的分段，例如：是一个完整的RLC数据包。通过步骤101判断目标数据包是否为RLC数据包的分段，若为RLC数据包的分段，则开启组包功能，即执行步骤102。
步骤102、将所述接收端接收到的所述RLC数据包的分段进行排列。
其中，这里排列可以是按照特定顺序进行排列，也可以是随机排列，对此本公开实施例不作限定。
步骤103、若所述接收端接收到所述RLC数据包的所有分段，则将所述RLC数据包的所有分段进行组包，得到所述RLC数据包。
该步骤中，若接收到上述RLC数据包的所有分段，则进行组包，以向PDCP层上报组包后的RLC数据包。其中，RLC数据包的所有分段可以是根据接收到该RLC数据包的分段数据包中携带的分段标识或者分段位置信息，确定RLC数据包的所有分段是否都接收到。
步骤104、向PDCP层上报所述RLC数据包。
当组包成功后，就可以向PDCP层上报所述RLC数据包，其中，上报可以是每组包成功一个RLC数据包就上报一个，当然，也可以是组包成功的数据包达到预设数量后，再统一上报，对此本公开实施例不作限定。
本公开实施例中，通过步骤101至步骤103就可以实现在RLC层进行组包，且可以是在去除了RLC层的重排序检测功能后，在RLC层进行组包，即实现RLC层的组包功能。通过在RLC层进行组包可以支持底层进行分段传输，从而可以提高传输性能。
另外，本公开实施例中，接收端可以是通信系统中接收数据包的设备，当然，该设备还可以发送数据包。例如：用户终端或者网络侧设备，其中，用户终端可以是手机、平板电脑(Tablet Personal Computer)、膝上型电脑(Laptop Computer)、个人数字助理(personal digital assistant，简称PDA)、移动上网装置(Mobile Internet Device，MID)或可穿戴式设备(Wearable Device)等终侧设备。而网络侧设备可以是传输接收点(TRP，Transmission Reception Point)，或者可以是基站，基站可以是宏站，如LTE eNB、5G NR NB等，或者网络侧设备12可以是接入点(AP，access point)。
本公开实施例中，若所述接收端在无线链路控制RLC层接收到目标数据包，则通过所述目标数据包的包头，判断所述目标数据包是否为RLC数据包的分段；若所述目标数据包为RLC数据包的分段，则将所述接收端接收到的所述RLC数据包的分段进行排列；若所述接收端接收到所述RLC数据包的 所有分段，则将所述RLC数据包的所有分段进行组包，得到所述RLC数据包；向PDCP层上报所述RLC数据包。这样能够实现在RLC层将分段进行组包，从而提高通信系统的传输性能。
请参考图2，图2是本公开实施例提供的分段组包方法的流程图，该方法应用于接收端，本实施例与图1所示的实施例的主要区别在于，在图1所示的实施例的基础上增加了在所述PDCP层接收到所述RLC层上报的RLC数据包后，对于判断接收失败的失败数据包，将所述失败数据包通知所述RLC层的步骤。如图2所示，包括以下步骤：
步骤201、若所述接收端在RLC层接收到目标数据包，则通过所述目标数据包的包头，判断所述目标数据包是否为RLC数据包的分段，若是，则执行步骤202，若否，则可以结束流程或者向PDCP层上报该目标数据包，其中，附图中以结束流程进行举例。
其中，目标数据包可以是底层(例如：MAC层)向RLC层上报的任意数据包，且目标数据包可以是RLC数据包的分段，也有可能不是RLC数据包的分段，例如：是一个完整的RLC数据包。通过步骤101判断目标数据包是否为RLC数据包的分段，若为RLC数据包的分段，则开启组包功能，即执行步骤102。
需要说明的是，本公开实施例中，RLC数据包可以理解为RLC业务数据单元(Service Data Unit，SDU)。
可选的，所述通过所述目标数据包的包头，判断所述目标数据包是否为RLC数据包的分段的步骤，包括：判断所述目标数据包的包头是否包括分段包的格式指示，若所述目标数据包的包头包括分段包的格式指示，则确定所述目标数据包为RLC数据包的分段；或者判断所述目标数据包的包头是否包括分段位置信息，若所述目标数据包的包头包括分段位置信息，则确定所述目标数据包为RLC数据包的分段。
其中，上述格式指示可以是用于指示上述目标数据包为RLC数据包的分段数据包，这样通过该格式指示就可以显示地指示目标数据包为RLC数据包的分段。而上述通过分段位置信息确定所述目标数据包为RLC数据包的分段，是通过隐示的指示目标数据包为RLC数据包，由于这样不需要在包头中添加 额外的格式指示，从而可以节约包头的开销。
可选的，所述通过所述目标数据包的包头，判断所述目标数据包是否为RLC数据包的分段的步骤之前，所述方法还包括：若所述接收端在RLC层接收到目标数据包，则根据所述目标数据包的编号，判断所述目标数据包是否为重复RLC数据包；若所述目标数据包为重复RLC数据包，则丢弃所述目标数据包；若所述目标数据包不为重复RLC数据包，则执行所述通过所述目标数据包的包头判断所述目标数据包是否为RLC数据包的分段的步骤。
该实施方式中，在接收到目标数据包时，判断是否为重复RLC数据包，若为重复RLC数据包，即该目标数据包已经接收，从而丢弃该目标数据包，以避免生成RLC数据包带的存储空间浪费，以达到节约存储空间的效果。其中，判断目标数据包是否为重复RLC数据包可以是基于接收端存储或者记录的状态信息进行判断，例如：判断目标数据包是否为已经上报给PDCP层的数据包，或者判断是否为已经组包成功的数据包等，对此本公开实施例不作限定。
优先的，该实施方式中，上述方法还包括：
记录所述RLC层的状态信息；其中，所述状态信息包括预设编号长度范围内的各RLC数据包的状态和编号，且所述各RLC数据包的状态包括已经上报给所述PDCP层、组包成功、正在组包或者未接收到。
其中，上述预设编号长度范围可以是协议约定的，例如：协议约定接收端记录的RLC数据包的编号数量为RLC编号最大值的一半，如编号最大值为10，那么接收端最多存储5个编号。另外，本公开实施例中，编号也可以称作序列号(SN)。或者上述预设编号长度范围或者接收端预先配置的。例如：5、6或者7等，即接收端一个时刻只记录5、6或者7数据包的编号。当然，这里预设编号长度范围的数据包是随着时间或者数据包的接收变化的，例如：接收端首先是记录编号为1至5的数据包的状态，但这5个数据包可以包括上报给所述PDCP层、组包成功、正在组包和/或未接收到的数据包，即这5个数据包中有些数据包可以是上报给所述PDCP层的数据包，有些可以是组包成功的数据包，有些可以是正在组包的数据包，或者有些可以是未接收到的数据包。但随着时间或者接收的变化，接收端会记录编号为2至6、 3至7、4至8、5至9、6至10、7至1的数据包，其中，这里以最大编号为10进行举例，即编号到了10后，就翻转从1继续开始。
该实施方式中，通过记录RLC层的状态信息，从而可以及时了解各数据包的状态，以方便接收端对各数据包进行灵活处理，以提高系统的灵活性。
优先的，该实施方式中，所述方法还包括：确定所述预设编号长度范围的上边界编号和下边界编号。
其中，记录RLC层的状态信息和上述确定所述预设编号长度范围的上边界编号和下边界编号的执行顺序不作限定，可以是先记录确定，或者先确定再记录，或者同时执行。该实施方式中，由于确定所述预设编号长度范围的上边界编号和下边界编号，从而可以有效地保证接收端只记录预设编号长度范围内的各RLC数据包的状态和编号，以节约接收端的存储空间。
优选的，若接收到数据包的编号未翻转，所述预设编号长度范围的上边界编号为：接收到的数据包的编号中的最大编号、接收到的数据包的编号中的最大编号加1、接收到的数据包的编号中的最大编号减1或者所述预设编号长度范围的下边界编号加上所述预设编号长度范围再减1；
若接收到数据包的编号翻转，所述预设编号长度范围的上边界编号为：接收到的数据包的编号中翻转的编号中的最大编号、接收到的数据包的编号中翻转的编号中的最大编号加1、接收到的数据包的编号中翻转的编号中的最大编号减1或者将第一计算结果对所述预设编号长度范围进行取余运算得到的编号，所述第一计算结果为所述预设编号长度范围的下边界编号加上所述预设编号长度范围再减1得到的计算结果。
该实施方式中，可以实现准确地确定预设编号长度范围内的上边界编号，以方便接收端准确地记录预设编号长度范围内的各数据包的状态。例如：若数据包的编号未翻转，预设编号长度范围为5，下边界编号为3，那么上边界编号为3+5-1＝7。可以如图3所示，预设编号长度范围内的上边界编号和下边界编号分别为3和7。
又例如：若数据包的编号翻转，预设编号长度范围为5，下边界编号为8，则上边界编号为(8+5-1)mod 5＝2，其中10为预设最大编号。即如图4所示，预设编号长度范围为5，预设编号长度范围内的上边界编号和下边界编 号分别为8和2。
优选的，若接收到数据包的编号未翻转，所述预设编号长度范围的下边界编号为：接收到的数据包的编号中的最小编号、接收到的数据包的编号中的最小编号加1、接收到的数据包的编号中的最小编号减1或者所述预设编号长度范围的上边界编号减去所述预设编号长度范围再加1；
若接收到数据包的编号翻转，所述预设编号长度范围的下边界编号为：接收到的数据包的编号中未翻转的编号中的最小编号、接收到的数据包的编号中未翻转的编号中的最小编号加1、接收到的数据包的编号中未翻转的编号中的最小编号减1或者将第二计算结果加预设最大编号得到的编号，所述第二计算结果为所述预设编号长度范围的上边界编号减去所述预设编号长度范围再加1得到的计算结果。
该实施方式中，可以实现准确地确定预设编号长度范围内的下边界编号，以方便接收端准确地记录预设编号长度范围内的各数据包的状态。例如：上边界编号为7，那么下边界编号为7-5+1＝3；则可以如图3所示，预设编号长度范围内的上边界编号和下边界编号分别为3和7。
又例如：数据包的编号翻转，预设编号长度范围为5，上边界编号为2，下边界编号为2-5+1+10＝8，其中10为预设最大编号。即如图4所示，预设编号长度范围为5，预设编号长度范围内的上边界编号和下边界编号分别为8和2。
优先的，上述确定上边界编号和下边界编号的实施方式，所述确定所述预设编号长度范围的上边界编号和下边界编号的步骤之前，所述方法还包括：若接收到数据包的编号小于或者等于所述预设编号长度范围的下边界编号，则确定该数据包的编号翻转；或者若接收到数据包的编号小于或者等于第三计算结果，则确定该数据包的编号翻转，所述第三计算结果为所述预设编号长度范围的下边界编号减去所述预设编号长度范围得到的结果。
该实施方式中，可以准确地确定接收的数据包的编号是否翻转，以准确地上述预设编号长度范围的上边界编号和下边界编号。例如：预设编号长度范围为5，下边界编号为8，新接收到的数据包为2，则2<(8-5＝3)，则确定该数据包的编号翻转。
可选的，上述根据所述目标数据包的编号，判断所述目标数据包是否为重复RLC数据包的步骤，包括：
判断所述目标数据包的编号是否为已经上报给所述PDCP层的数据包的编号，若所述目标数据包的编号为已经上报给所述PDCP层的数据包的编号，则确定所述目标数据包为重复RLC数据包；或者
判断所述目标数据包的编号是否为组包成功的数据包的编号，若所述目标数据包的编号为组包成功的数据包的编号，则确定所述目标数据包为重复RLC数据包；或者
判断所述预设编号长度范围内是否存在编号与所述目标数据包的编号相同的数据包，若所述预设编号长度范围内存在编号与所述目标数据包的编号相同的数据包，则确定所述目标数据包为重复RLC数据包。
其中，若所述预设编号长度范围内不存在编号与所述目标数据包的编号相同的数据包，则确定可以所述目标数据包不为重复RLC数据包。
该实施方式中，可以实现若目标数据包上报给所述PDCP层的数据包或者组包成功的数据包，则确定该目标数据包为重复RLC数据包。当然，若判断目标数据包不是上报给所述PDCP层的数据包，且也不是组包成功的数据包，则可以通过上述判断所述预设编号长度范围内是否存在编号与所述目标数据包的编号相同的数据包的方式确定是否为重复RLC数据包，当然，也可以直接采用该方式进行判断，对此本公开实施例不作限定。该实施方式中，通过三种判断方式可以准确地判断目标数据包是否为重复RLC数据包，以提高接收端的性能。
步骤202、将所述接收端接收到的所述RLC数据包的分段进行排列。
可选的，将所述接收端接收到的所述RLC数据包的分段进行排列的步骤，包括：将所述接收端接收到的所述RLC数据包的分段按分段顺序进行顺序排列；或者将所述接收端接收到的所述RLC数据包的分段进行随机排列。
该实施方式中，可以实现按分段顺序进行顺序排列，通过该排列方式组包后，高层在接收到RLC数据包后，便于高层识别各分段，以提高接收端的性能。而通过随机排列的方式，可以实现快速地将分段进行排列并组包，以提高组包效率。
可选的，所述通过所述目标数据包的包头，判断所述目标数据包是否为RLC数据包的分段的步骤之后，所述方法还包括：若所述目标数据包为RLC数据包的分段，则判断所述目标数据包是否为所述接收端接收到的所述RLC数据包的分段的重复分段；若所述目标数据包为所述接收端接收到的所述RLC数据包的分段的重复分段，则丢弃所述目标数据包。
其中，上述判断所述目标数据包是否为所述接收端接收到的所述RLC数据包的分段的重复分段可以是，判断RLC层接收到上述RLC数据包中的分段是存在否与上述目标数据包相同分段，若存在，则可以确定该分段重复接收，即上述目标数据包为重复分段。由于丢弃重复分段，从而可以避免将重复分段进行组包，以提高组包的正确性，且还可以节约接收端的存储空间。
步骤203、若所述接收端接收到所述RLC数据包的所有分段，则将所述RLC数据包的所有分段进行组包，得到所述RLC数据包。
该步骤中，若接收到上述RLC数据包的所有分段，则进行组包，以向PDCP层上报组包后的RLC数据包。其中，RLC数据包的所有分段可以是根据接收到该RLC数据包的分段数据包中携带的分段标识或者分段位置信息，确定RLC数据包的所有分段是否都接收到。
可选的，所述通过所述目标数据包的包头，判断所述目标数据包是否为RLC数据包的分段的步骤之后，所述方法还包括：若定时器超时，则停止所述RLC数据包的组包过程，并将所述接收端存储的所述RLC数据包的分段丢弃。
该实施方式中，可以实现定时器超时，则停止所述RLC数据包的组包过程，并将所述接收端存储的所述RLC数据包的分段丢弃，从而节约接收端的功耗和存储空间。因为，上述第一时间器超时表示，RLC数据包存在分段未接收成功，从而无法组包成功，进而丢弃存储的该RLC数据包的分段。其中，上述第一定时器的时长可以是预先配置好的。
优先的，所述定时器包括：所述接收端首次接收到所述RLC数据包的分段开启的定时器；或者所述接收端在接收到所述RLC数据包的分段之后，又一次接收到所述RLC数据包的分段开启的定时器；或者所述接收端将接收到的所述RLC数据包的分段按照分段顺序进行排列后，若顺序排列的两个相邻 分段中间存在分段没有接收到开启的定时器。
该实施方式中，可以实现在接收端首次在RLC层接收到上述RLC数据包的分段时，开启定时器，以及在之后每接收到该RLC数据包的分段，均重启该定时器，以及RLC数据包的分段按照分段顺序进行排列后，若顺序排列的两个相邻分段中间存在分段没有接收到，即发现存在分段没有接收到后，开启定时器。且第一定时器超时，则将接收端存储的所述RLC数据包的分段丢弃，这样可以节约接收端的存储空间。
可选的，所述方法还包括：若所述接收端接收到所述RLC数据包的所有分段后，且所述定时器未超时，则停止所述定时器。
该实施方式中，由于接收到所述RLC数据包的所有分段后，所述第一定时器未超时，则停止所述第一定时器，这样可以避免接收到所述RLC数据包的所有分段后，还继续计时而导致的功耗浪费，且由于第一定时器在组包后停止，这样可以避免组包成功后，第一定时器超时，产生的丢弃该RLC数据包的分段，而导致的RLC数据包错误。
步骤204、向PDCP层上报所述RLC数据包。
当组包成功后，就可以向PDCP层上报所述RLC数据包，其中，上报可以是每组包成功一个RLC数据包就上报一个，当然，也可以是组包成功的数据包达到预设数量后，再统一上报，对此本公开实施例不作限定。
可选的，所述方法还包括：
步骤205、在所述PDCP层接收到所述RLC层上报的RLC数据包后，对于判断接收失败的失败数据包，将所述失败数据包通知所述RLC层。
其中，上述失败数据包可以是在所述PDCP层对接收到的RLC数据包进行排序后判断接收失败的数据包。例如：在所述PDCP层接收到所述RLC层上报的RLC数据包后，在所述PDCP层记录接收到的RLC数据包的编号，并按照编号将接收到的RLC层数据包进行排序，在所述PDCP层的排序过程判断是否有未接收成功的失败RLC数据包。且在判断在失败数据包后，还可以启动第二定时器，若在定时器超时时，所述失败RLC数据包还未成功接收，则将编号处于所述失败数据包的编号之后的RLC数据包依次向高层上报，以及向所述RLC层发送所述失败数据包的编号。需要说明的是，在PDCP层上 可以将RLC数据包看作PDCP数据包。
通过步骤205可以实现将PDCP层接收失败的数据包通知给RLC层，从而使RLC层及时了解PDCP层的接收情况，以提高接收端的整体性能。
需要说明的是，本公开实施例中，并不限定步骤205与步骤204的执行顺序，其中，附图中以先执行步骤204再执行步骤205进行举例，在另一些场景中，也可以是先执行步骤205再执行步骤204或者同时执行。因为，失败数据包可以是位于步骤204上报的RLC数据包之前的数据包。
可选的，所述对于判断接收失败的失败数据包，将所述失败数据包通知所述RLC层的步骤。包括：
在所述PDCP层记录接收到的RLC数据包的编号，并确定判断接收失败的失败数据包在所述RLC层的编号，将所述失败数据包在所述RLC层的编号通知所述RLC层。
该实施方式中，可以实现将失败数据包在RLC层的编号通知给RLC层，从而RLC层就可以准确、快速地确定失败的数据包。
优先的，所述对于判断接收失败的失败数据包，将所述失败数据包通知所述RLC层的步骤之后，所述方法还包括：若所述RLC层存储有所述失败数据包的分段，则丢弃所述失败数据包的分段；或者若在所述RLC层正在执行所述失败数据包的组包过程，则停止所述失败数据包的组包过程，停止所述组包过程开启的定时器，以及丢弃所述失败数据包的组包过程使用的分段。
该步骤可以是RLC层接收到PDCP层下发的失败数据包的编号后，就可以丢弃存储的所述失败数据包的分段，因为，数据包可以不用上报给PDCP层，进而节约接收端的存储空间。以及RLC层接收到PDCP层下发的失败数据包的编号后，若RLC层开启了失败数据包的组包过程，则停止组包，停止所述组包过程开启的定时器，以及并丢弃存储的所述失败数据包的分段，因为，数据包可以不用上报给PDCP层，进而节约接收端的功耗和存储空间。
本公开实施例中，若所述接收端在无线链路控制RLC层接收到目标数据包，则通过所述目标数据包的包头，判断所述目标数据包是否为RLC数据包的分段；若所述目标数据包为RLC数据包的分段，则将所述接收端接收到的所述RLC数据包的分段进行排列；若所述接收端接收到所述RLC数据包 的所有分段，则将所述RLC数据包的所有分段进行组包，得到所述RLC数据包；向PDCP层上报所述RLC数据包；在所述PDCP层接收到所述RLC层上报的RLC数据包后，对于判断接收失败的失败数据包，将所述失败数据包通知所述RLC层。这样可以实现在RLC层进行组包，从而提高接收端的传输性能，另外，由于将PDCP层接收失败的数据包通知给RLC层，从而使RLC层及时了解PDCP层的接收情况，以提高接收端的整体性能。
参见图5，图5是本公开实施例提供的接收端的结构图，能够实现图1和图2所示的实施例中的分段组包方法的细节，并达到相同的效果。如图5所示，接收端500包括：第一分段判断模块501、分段排列模块502、组包模块503和上报模块504，第一分段判断模块501与分段排列模块502连接，分段排列模块502还与组包模块503，组包模块503还与上报模块504连接，其中：
第一分段判断模块501，用于若所述接收端在无线链路控制RLC层接收到目标数据包，则通过所述目标数据包的包头，判断所述目标数据包是否为RLC数据包的分段；
分段排列模块502，用于若所述目标数据包为RLC数据包的分段，则将所述接收端接收到的所述RLC数据包的分段进行排列；
组包模块503，用于若所述接收端接收到所述RLC数据包的所有分段，则将所述RLC数据包的所有分段进行组包，得到所述RLC数据包。
上报模块504，用于向PDCP层上报所述RLC数据包。
可选的，所述第一分段判断模块501用于判断所述目标数据包的包头是否包括分段包的格式指示，若所述目标数据包的包头包括分段包的格式指示，则确定所述目标数据包为RLC数据包的分段；或者
所述第一分段判断模块501用于判断所述目标数据包的包头是否包括分段位置信息，若所述目标数据包的包头包括分段位置信息，则确定所述目标数据包为RLC数据包的分段。
可选的，如图6所示，所述接收端500还包括：
第二分段判断模块505，用于若所述目标数据包为RLC数据包的分段，则判断所述目标数据包是否为所述接收端接收到的所述RLC数据包的分段的 重复分段；
第一丢弃模块506，用于若所述目标数据包为所述接收端接收到的所述RLC数据包的分段的重复分段，则丢弃所述目标数据包。
可选的，所述分段排列模块502用于将所述接收端接收到的所述RLC数据包的分段按分段顺序进行顺序排列；或者所述分段排列模块502用于将所述接收端接收到的所述RLC数据包的分段进行随机排列。
可选的，如图7所示，所述接收端500还包括：
第二丢弃模块507，用于若定时器超时，则停止所述RLC数据包的组包过程，并将所述接收端存储的所述RLC数据包的分段丢弃。
可选的，所述定时器包括：所述接收端首次接收到所述RLC数据包的分段开启的定时器；或者所述接收端在接收到所述RLC数据包的分段之后，又一次接收到所述RLC数据包的分段开启的定时器；或者所述接收端将接收到的所述RLC数据包的分段按照分段顺序进行排列后，若顺序排列的两个相邻分段中间存在分段没有接收到开启的定时器。
可选的，如图8所示，所述接收端500还包括：
停止模块508，用于若所述接收端接收到所述RLC数据包的所有分段后，且所述定时器未超时，则停止所述定时器。
可选的，如图9所示，所述接收端500还包括：
数据包判断模块509，用于若所述接收端在RLC层接收到目标数据包，则根据所述目标数据包的编号，判断所述目标数据包是否为重复RLC数据包；
第三丢弃模块5010，用于若所述目标数据包为重复RLC数据包，则丢弃所述目标数据包；
所述第一分段判断模块501用于若所述目标数据包不为重复RLC数据包，则执行所述通过所述目标数据包的包头判断所述目标数据包是否为RLC数据包的分段的步骤。
可选的，如图10所示，所述接收端500还包括：
记录模块5011，用于记录所述RLC层的状态信息；
所述状态信息包括预设编号长度范围内的各RLC数据包的状态和编号，且所述各RLC数据包的状态包括已经上报给所述PDCP层、组包成功、正在 组包或者未接收到。
可选的，如图11所示，所述接收端500还包括：
第一确定模块5012，用于确定所述预设编号长度范围的上边界编号和下边界编号。
可选的，若接收到数据包的编号未翻转，所述预设编号长度范围的上边界编号为：接收到的数据包的编号中的最大编号、接收到的数据包的编号中的最大编号加1、接收到的数据包的编号中的最大编号减1或者所述预设编号长度范围的下边界编号加上所述预设编号长度范围再减1；
若接收到数据包的编号翻转，所述预设编号长度范围的上边界编号为：接收到的数据包的编号中翻转的编号中的最大编号、接收到的数据包的编号中翻转的编号中的最大编号加1、接收到的数据包的编号中翻转的编号中的最大编号减1或者将第一计算结果对所述预设编号长度范围进行取余运算得到的编号，所述第一计算结果为所述预设编号长度范围的下边界编号加上所述预设编号长度范围再减1得到的计算结果。
可选的，若接收到数据包的编号未翻转，所述预设编号长度范围的下边界编号为：接收到的数据包的编号中的最小编号、接收到的数据包的编号中的最小编号加1、接收到的数据包的编号中的最小编号减1或者所述预设编号长度范围的上边界编号减去所述预设编号长度范围再加1；
若接收到数据包的编号翻转，所述预设编号长度范围的下边界编号为：接收到的数据包的编号中未翻转的编号中的最小编号、接收到的数据包的编号中未翻转的编号中的最小编号加1、接收到的数据包的编号中未翻转的编号中的最小编号减1或者将第二计算结果加预设最大编号得到的编号，所述第二计算结果为所述预设编号长度范围的上边界编号减去所述预设编号长度范围再加1得到的计算结果。
可选的，如图12所示，所述接收端500还包括：
第二确定模块5013，用于若接收到数据包的编号小于或者等于所述预设编号长度范围的下边界编号，则确定该数据包的编号翻转；或者
第三确定模块5014，用于若接收到数据包的编号小于或者等于第三计算结果，则确定该数据包的编号翻转，所述第三计算结果为所述预设编号长度 范围的下边界编号减去所述预设编号长度范围得到的结果。
可选的，所述数据包判断模块509用于判断所述目标数据包的编号是否为已经上报给所述PDCP层的数据包的编号，若所述目标数据包的编号为已经上报给所述PDCP层的数据包的编号，则确定所述目标数据包为重复RLC数据包；或者所述数据包判断模块509用于判断所述目标数据包的编号是否为组包成功的数据包的编号，若所述目标数据包的编号为组包成功的数据包的编号，则确定所述目标数据包为重复RLC数据包；或者所述数据包判断模块509用于判断所述预设编号长度范围内是否存在编号与所述目标数据包的编号相同的数据包，若所述预设编号长度范围内存在编号与所述目标数据包的编号相同的数据包，则确定所述目标数据包为重复RLC数据包。
可选的，如图13所示，所述接收端500还包括：
通知模块5015，用于在所述PDCP层接收到所述RLC层上报的RLC数据包后，对于判断接收失败的失败数据包，将所述失败数据包通知所述RLC层。
可选的，通知模块5015用于在所述PDCP层接收到所述RLC层上报的RLC数据包后，在所述PDCP层记录接收到的RLC数据包的编号，并确定判断接收失败的失败数据包在所述RLC层的编号，将所述失败数据包在所述RLC层的编号通知所述RLC层。
可选的，如图14所示，所述接收端500还包括：
第四丢弃模块5016，用于若所述RLC层存储有所述失败数据包的分段，则丢弃所述失败数据包的分段；或者
第五丢弃模块5017，用于若在所述RLC层正在执行所述失败数据包的组包过程，则停止所述失败数据包的组包过程，停止所述组包过程开启的定时器，以及丢弃所述失败数据包的组包过程使用的分段。
在本公开实施例提供的接收端中，若所述接收端在无线链路控制RLC层接收到目标数据包，则通过所述目标数据包的包头，判断所述目标数据包是否为RLC数据包的分段；若所述目标数据包为RLC数据包的分段，则将所述接收端接收到的所述RLC数据包的分段进行排列；若所述接收端接收到所述RLC数据包的所有分段，则将所述RLC数据包的所有分段进行组包，得 到所述RLC数据包；向PDCP层上报所述RLC数据包。这样能够实现在RLC层将分段进行组包，以提高通信系统的传输性能。
参见图15，图15是本公开实施例应用的网络侧设备的结构图，能够实现图1和图2所示的实施例中的分段组包方法的细节，并达到相同的效果。如图15所示，该网络侧设备1500包括：处理器1501、收发机1502、存储器1503、用户接口1504和总线接口，其中：
处理器1501，用于读取存储器1503中的程序，执行下列过程：
若所述网络侧设备在RLC层接收到目标数据包，则通过所述目标数据包的包头，判断所述目标数据包是否为RLC数据包的分段；若所述目标数据包为RLC数据包的分段，则将所述网络侧设备接收到的所述RLC数据包的分段进行排列；若所述网络侧设备接收到所述RLC数据包的所有分段，则将所述RLC数据包的所有分段进行组包，得到所述RLC数据包；向PDCP层上报所述RLC数据包。
其中，收发机1502，用于在处理器1501的控制下接收和发送数据。
在图15中，总线架构可以包括任意数量的互联的总线和桥，具体由处理器1501代表的一个或多个处理器和存储器1503代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。总线接口提供接口。收发机1502可以是多个元件，即包括发送机和接收机，提供用于在传输介质上与各种其他装置通信的单元。针对不同的用户设备，用户接口1504还可以是能够外接内接需要设备的接口，连接的设备包括但不限于小键盘、显示器、扬声器、麦克风、操纵杆等。
处理器1501负责管理总线架构和通常的处理，存储器1503可以存储处理器1501在执行操作时所使用的数据。
可选的，处理器1501还用于：判断所述目标数据包的包头是否包括分段包的格式指示，若所述目标数据包的包头包括分段包的格式指示，则确定所述目标数据包为RLC数据包的分段；或者判断所述目标数据包的包头是否包括分段位置信息，若所述目标数据包的包头包括分段位置信息，则确定所述目标数据包为RLC数据包的分段。
可选的，处理器1501还用于：若所述目标数据包为RLC数据包的分段，则判断所述目标数据包是否为所述网络侧设备接收到的所述RLC数据包的分段的重复分段；若所述目标数据包为所述网络侧设备接收到的所述RLC数据包的分段的重复分段，则丢弃所述目标数据包。
可选的，处理器1501还用于：将所述网络侧设备接收到的所述RLC数据包的分段按分段顺序进行顺序排列；或者将所述网络侧设备接收到的所述RLC数据包的分段进行随机排列。
可选的，处理器1501还用于：若定时器超时，则停止所述RLC数据包的组包过程，并将所述网络侧设备存储的所述RLC数据包的分段丢弃。
可选的，所述定时器包括：所述网络侧设备首次接收到所述RLC数据包的分段开启的定时器；或者所述网络侧设备在接收到所述RLC数据包的分段之后，又一次接收到所述RLC数据包的分段开启的定时器；或者所述网络侧设备将接收到的所述RLC数据包的分段按照分段顺序进行排列后，若顺序排列的两个相邻分段中间存在分段没有接收到开启的定时器。
可选的，处理器1501还用于：若所述网络侧设备接收到所述RLC数据包的所有分段后，且所述定时器未超时，则停止所述定时器。
可选的，处理器1501还用于：若所述网络侧设备在RLC层接收到目标数据包，则根据所述目标数据包的编号，判断所述目标数据包是否为重复RLC数据包；若所述目标数据包为重复RLC数据包，则丢弃所述目标数据包；若所述目标数据包不为重复RLC数据包，则执行所述通过所述目标数据包的包头判断所述目标数据包是否为RLC数据包的分段的步骤。
可选的，处理器1501还用于：记录所述RLC层的状态信息；其中，所述状态信息包括预设编号长度范围内的各RLC数据包的状态和编号，且所述各RLC数据包的状态包括已经上报给所述PDCP层、组包成功、正在组包或者未接收到。
可选的，处理器1501还用于：确定所述预设编号长度范围的上边界编号和下边界编号。
可选的，若接收到数据包的编号未翻转，所述预设编号长度范围的上边界编号为：接收到的数据包的编号中的最大编号、接收到的数据包的编号中 的最大编号加1、接收到的数据包的编号中的最大编号减1或者所述预设编号长度范围的下边界编号加上所述预设编号长度范围再减1；
若接收到数据包的编号翻转，所述预设编号长度范围的上边界编号为：接收到的数据包的编号中翻转的编号中的最大编号、接收到的数据包的编号中翻转的编号中的最大编号加1、接收到的数据包的编号中翻转的编号中的最大编号减1或者将第一计算结果对所述预设编号长度范围进行取余运算得到的编号，所述第一计算结果为所述预设编号长度范围的下边界编号加上所述预设编号长度范围再减1得到的计算结果；
可选的，若接收到数据包的编号未翻转，所述预设编号长度范围的下边界编号为：接收到的数据包的编号中的最小编号、接收到的数据包的编号中的最小编号加1、接收到的数据包的编号中的最小编号减1或者所述预设编号长度范围的上边界编号减去所述预设编号长度范围再加1；
若接收到数据包的编号翻转，所述预设编号长度范围的下边界编号为：接收到的数据包的编号中未翻转的编号中的最小编号、接收到的数据包的编号中未翻转的编号中的最小编号加1、接收到的数据包的编号中未翻转的编号中的最小编号减1或者将第二计算结果加预设最大编号得到的编号，所述第二计算结果为所述预设编号长度范围的上边界编号减去所述预设编号长度范围再加1得到的计算结果。
可选的，处理器1501还用于：若接收到数据包的编号小于或者等于所述预设编号长度范围的下边界编号，则确定该数据包的编号翻转；或者若接收到数据包的编号小于或者等于第三计算结果，则确定该数据包的编号翻转，所述第三计算结果为所述预设编号长度范围的下边界编号减去所述预设编号长度范围得到的结果。
可选的，处理器1501还用于：判断所述目标数据包的编号是否为已经上报给所述PDCP层的数据包的编号，若所述目标数据包的编号为已经上报给所述PDCP层的数据包的编号，则确定所述目标数据包为重复RLC数据包；或者判断所述目标数据包的编号是否为组包成功的数据包的编号，若所述目标数据包的编号为组包成功的数据包的编号，则确定所述目标数据包为重复RLC数据包；或者判断所述预设编号长度范围内是否存在编号与所述目标数 据包的编号相同的数据包，若所述预设编号长度范围内存在编号与所述目标数据包的编号相同的数据包，则确定所述目标数据包为重复RLC数据包。
可选的，处理器1501还用于：在所述PDCP层接收到所述RLC层上报的RLC数据包后，对于判断接收失败的失败数据包，将所述失败数据包通知所述RLC层。
可选的，处理器1501还用于：在所述PDCP层记录接收到的RLC数据包的编号，并确定判断接收失败的失败数据包在所述RLC层的编号，将所述失败数据包在所述RLC层的编号通知所述RLC层。
可选的，处理器1501还用于：若所述RLC层存储有所述失败数据包的分段，则丢弃所述失败数据包的分段；或者若在所述RLC层正在执行所述失败数据包的组包过程，则停止所述失败数据包的组包过程，停止所述组包过程开启的定时器，以及丢弃所述失败数据包的组包过程使用的分段。
其中，上述网络侧设备可以是传输接收点(TRP，Transmission Reception Point)，或者可以是基站，基站可以是宏站，如LTE eNB、5G NR NB等。或者网络侧设备可以是接入点(AP，access point)。
在本公开实施例提供的网络侧设备中，若所述网络侧设备在RLC层接收到目标数据包，则通过所述目标数据包的包头，判断所述目标数据包是否为RLC数据包的分段；若所述目标数据包为RLC数据包的分段，则将所述网络侧设备接收到的所述RLC数据包的分段进行排列；若所述网络侧设备接收到所述RLC数据包的所有分段，则将所述RLC数据包的所有分段进行组包，得到所述RLC数据包；向PDCP层上报所述RLC数据包。这样能够实现在RLC层将分段进行组包，以提高通信系统的传输性能。
参见图16，图16是本公开实施例应用的用户终端的结构图，能够实现图1和图2所示的实施例中的分段组包方法的细节，并达到相同的效果。如图16所示，用户终端1600包括射频(Radio Freq，RF)电路1610、存储器1620、输入单元1630、显示单元1640、处理器1650、音频电路1660、通信模块1670、和电源1680。
其中，输入单元1630可用于接收用户输入的数字或字符信息，以及产生与用户终端1600的用户设置以及功能控制有关的信号输入。具体地，本公开 实施例中，该输入单元1630可以包括触控面板1631。触控面板1631，也称为触摸屏，可收集用户在其上或附近的触摸操作(比如用户使用手指、触笔等任何适合的物体或附件在触控面板1631上的操作)，并根据预先设定的程式驱动相应的连接装置。可选的，触控面板1631可包括触摸检测装置和触摸控制器两个部分。其中，触摸检测装置检测用户的触摸方位，并检测触摸操作带来的信号，将信号传送给触摸控制器；触摸控制器从触摸检测装置上接收触摸信息，并将它转换成触点坐标，再送给该处理器1650，并能接收处理器1650发来的命令并加以执行。此外，可以采用电阻式、电容式、红外线以及表面声波等多种类型实现触控面板1631。除了触控面板1631，输入单元1630还可以包括其他输入设备1632，其他输入设备1632可以包括但不限于物理键盘、功能键(比如音量控制按键、开关按键等)、轨迹球、鼠标、操作杆等中的一种或多种。
其中，显示单元1640可用于显示由用户输入的信息或提供给用户的信息以及用户终端1600的各种菜单界面。显示单元1640可包括显示面板1641，可选的，可以采用LCD或有机发光二极管(Organic Light-Emitting Diode，OLED)等形式来配置显示面板1641。
应注意，触控面板1631可以覆盖显示面板1641，形成触摸显示屏，当该触摸显示屏检测到在其上或附近的触摸操作后，传送给处理器1650以确定触摸事件的类型，随后处理器1650根据触摸事件的类型在触摸显示屏上提供相应的视觉输出。
触摸显示屏包括应用程序界面显示区及常用控件显示区。该应用程序界面显示区及该常用控件显示区的排列方式并不限定，可以为上下排列、左右排列等可以区分两个显示区的排列方式。该应用程序界面显示区可以用于显示应用程序的界面。每一个界面可以包含至少一个应用程序的图标和/或widget桌面控件等界面元素。该应用程序界面显示区也可以为不包含任何内容的空界面。该常用控件显示区用于显示使用率较高的控件，例如，设置按钮、界面编号、滚动条、电话本图标等应用程序图标等。
其中处理器1650是用户终端1600的控制中心，利用各种接口和线路连接整个手机的各个部分，通过运行或执行存储在第一存储器1621内的软件程 序和/或模块，以及调用存储在第二存储器1622内的数据，执行用户终端1600的各种功能和处理数据，从而对用户终端1600进行整体监控。可选的，处理器1650可包括一个或多个处理单元。
在本公开实施例中，通过调用存储该第一存储器1621内的软件程序和/或模块和/或该第二存储器1622内的数据，处理器1650用于：若所述用户终端在无线链路控制RLC层接收到目标数据包，则通过所述目标数据包的包头，判断所述目标数据包是否为RLC数据包的分段；若所述目标数据包为RLC数据包的分段，则将所述用户终端接收到的所述RLC数据包的分段进行排列；若所述用户终端接收到所述RLC数据包的所有分段，则将所述RLC数据包的所有分段进行组包，得到所述RLC数据包；向PDCP层上报所述RLC数据包。
可选的，处理器1650还用于：判断所述目标数据包的包头是否包括分段包的格式指示，若所述目标数据包的包头包括分段包的格式指示，则确定所述目标数据包为RLC数据包的分段；或者判断所述目标数据包的包头是否包括分段位置信息，若所述目标数据包的包头包括分段位置信息，则确定所述目标数据包为RLC数据包的分段。
可选的，处理器1650还用于：若所述目标数据包为RLC数据包的分段，则判断所述目标数据包是否为所述用户终端接收到的所述RLC数据包的分段的重复分段；若所述目标数据包为所述用户终端接收到的所述RLC数据包的分段的重复分段，则丢弃所述目标数据包。
可选的，处理器1650还用于：将所述用户终端接收到的所述RLC数据包的分段按分段顺序进行顺序排列；或者将所述用户终端接收到的所述RLC数据包的分段进行随机排列。
可选的，处理器1650还用于：若定时器超时，则停止所述RLC数据包的组包过程，并将所述用户终端存储的所述RLC数据包的分段丢弃。
可选的，所述定时器包括：所述用户终端首次接收到所述RLC数据包的分段开启的定时器；或者所述用户终端在接收到所述RLC数据包的分段之后，又一次接收到所述RLC数据包的分段开启的定时器；或者所述用户终端将接收到的所述RLC数据包的分段按照分段顺序进行排列后，若顺序排列的两个 相邻分段中间存在分段没有接收到开启的定时器。
可选的，处理器1650还用于：若所述用户终端接收到所述RLC数据包的所有分段后，且所述定时器未超时，则停止所述定时器。
可选的，处理器1650还用于：若所述用户终端在RLC层接收到目标数据包，则根据所述目标数据包的编号，判断所述目标数据包是否为重复RLC数据包；若所述目标数据包为重复RLC数据包，则丢弃所述目标数据包；若所述目标数据包不为重复RLC数据包，则执行所述通过所述目标数据包的包头判断所述目标数据包是否为RLC数据包的分段的步骤。
可选的，处理器1650还用于：记录所述RLC层的状态信息；其中，所述状态信息包括预设编号长度范围内的各RLC数据包的状态和编号，且所述各RLC数据包的状态包括已经上报给所述PDCP层、组包成功、正在组包或者未接收到。
可选的，处理器1650还用于：确定所述预设编号长度范围的上边界编号和下边界编号。
可选的，若接收到数据包的编号未翻转，所述预设编号长度范围的上边界编号为：接收到的数据包的编号中的最大编号、接收到的数据包的编号中的最大编号加1、接收到的数据包的编号中的最大编号减1或者所述预设编号长度范围的下边界编号加上所述预设编号长度范围再减1；
若接收到数据包的编号翻转，所述预设编号长度范围的上边界编号为：接收到的数据包的编号中翻转的编号中的最大编号、接收到的数据包的编号中翻转的编号中的最大编号加1、接收到的数据包的编号中翻转的编号中的最大编号减1或者将第一计算结果对所述预设编号长度范围进行取余运算得到的编号，所述第一计算结果为所述预设编号长度范围的下边界编号加上所述预设编号长度范围再减1得到的计算结果；
可选的，若接收到数据包的编号未翻转，所述预设编号长度范围的下边界编号为：接收到的数据包的编号中的最小编号、接收到的数据包的编号中的最小编号加1、接收到的数据包的编号中的最小编号减1或者所述预设编号长度范围的上边界编号减去所述预设编号长度范围再加1；
若接收到数据包的编号翻转，所述预设编号长度范围的下边界编号为： 接收到的数据包的编号中未翻转的编号中的最小编号、接收到的数据包的编号中未翻转的编号中的最小编号加1、接收到的数据包的编号中未翻转的编号中的最小编号减1或者将第二计算结果加预设最大编号得到的编号，所述第二计算结果为所述预设编号长度范围的上边界编号减去所述预设编号长度范围再加1得到的计算结果。
可选的，处理器1650还用于：若接收到数据包的编号小于或者等于所述预设编号长度范围的下边界编号，则确定该数据包的编号翻转；或者若接收到数据包的编号小于或者等于第三计算结果，则确定该数据包的编号翻转，所述第三计算结果为所述预设编号长度范围的下边界编号减去所述预设编号长度范围得到的结果。
可选的，处理器1650还用于：判断所述目标数据包的编号是否为已经上报给所述PDCP层的数据包的编号，若所述目标数据包的编号为已经上报给所述PDCP层的数据包的编号，则确定所述目标数据包为重复RLC数据包；或者判断所述目标数据包的编号是否为组包成功的数据包的编号，若所述目标数据包的编号为组包成功的数据包的编号，则确定所述目标数据包为重复RLC数据包；或者判断所述预设编号长度范围内是否存在编号与所述目标数据包的编号相同的数据包，若所述预设编号长度范围内存在编号与所述目标数据包的编号相同的数据包，则确定所述目标数据包为重复RLC数据包。
可选的，处理器1650还用于：在所述PDCP层接收到所述RLC层上报的RLC数据包后，对于判断接收失败的失败数据包，将所述失败数据包通知所述RLC层。
可选的，处理器1650还用于：在所述PDCP层记录接收到的RLC数据包的编号，并确定判断接收失败的失败数据包在所述RLC层的编号，将所述失败数据包在所述RLC层的编号通知所述RLC层。
可选的，处理器1650还用于：若所述RLC层存储有所述失败数据包的分段，则丢弃所述失败数据包的分段；或者若在所述RLC层正在执行所述失败数据包的组包过程，则停止所述失败数据包的组包过程，停止所述组包过程开启的定时器，以及丢弃所述失败数据包的组包过程使用的分段。
在本公开实施例提供的用户终端中，若所述用户终端在无线链路控制 RLC层接收到目标数据包，则通过所述目标数据包的包头，判断所述目标数据包是否为RLC数据包的分段；若所述目标数据包为RLC数据包的分段，则将所述用户终端接收到的所述RLC数据包的分段进行排列；若所述用户终端接收到所述RLC数据包的所有分段，则将所述RLC数据包的所有分段进行组包，得到所述RLC数据包；向PDCP层上报所述RLC数据包。这样能够实现在RLC层将分段进行组包，以提高通信系统的传输性能。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本公开的范围。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的实施例中，应该理解到，所揭露的装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本公开实施例方案的目的。
另外，在本公开各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。
所述功能如果以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，本公开的技术方案本质上或者说对相关技术做出贡献的部分或者该技术方案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。而前述的存储介质包括：U盘、移动硬盘、ROM、RAM、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述，仅为本公开的具体实施方式，但本公开的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本公开揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本公开的保护范围之内。因此，本公开的保护范围应以权利要求的保护范围为准。

Claims (36)

  1. 一种分段组包方法，应用于接收端，包括：
    若所述接收端在无线链路控制RLC层接收到目标数据包，则通过所述目标数据包的包头，判断所述目标数据包是否为RLC数据包的分段；
    若所述目标数据包为RLC数据包的分段，则将所述接收端接收到的所述RLC数据包的分段进行排列；
    若所述接收端接收到所述RLC数据包的所有分段，则将所述RLC数据包的所有分段进行组包，得到所述RLC数据包；
    向包数据汇聚协议PDCP层上报所述RLC数据包。
  2. 根据权利要求1所述的方法，其中，所述通过所述目标数据包的包头，判断所述目标数据包是否为RLC数据包的分段的步骤，包括：
    判断所述目标数据包的包头是否包括分段包的格式指示，若所述目标数据包的包头包括分段包的格式指示，则确定所述目标数据包为RLC数据包的分段；或者
    判断所述目标数据包的包头是否包括分段位置信息，若所述目标数据包的包头包括分段位置信息，则确定所述目标数据包为RLC数据包的分段。
  3. 根据权利要求1或2所述的方法，其中，所述通过所述目标数据包的包头，判断所述目标数据包是否为RLC数据包的分段的步骤之后，所述方法还包括：
    若所述目标数据包为RLC数据包的分段，则判断所述目标数据包是否为所述接收端接收到的所述RLC数据包的分段的重复分段；
    若所述目标数据包为所述接收端接收到的所述RLC数据包的分段的重复分段，则丢弃所述目标数据包。
  4. 根据权利要求1-3任一项所述的方法，其中，所述将所述接收端接收到的所述RLC数据包的分段进行排列的步骤，包括：
    将所述接收端接收到的所述RLC数据包的分段按分段顺序进行顺序排列；或者
    将所述接收端接收到的所述RLC数据包的分段进行随机排列。
  5. 根据权利要求1-4任一项所述的方法，其中，所述通过所述目标数据包的包头，判断所述目标数据包是否为RLC数据包的分段的步骤之后，所述方法还包括：
    若定时器超时，则停止所述RLC数据包的组包过程，并将所述接收端存储的所述RLC数据包的分段丢弃。
  6. 根据权利要求5所述的方法，其中，所述定时器包括：
    所述接收端首次接收到所述RLC数据包的分段开启的定时器；或者
    所述接收端在接收到所述RLC数据包的分段之后，又一次接收到所述RLC数据包的分段开启的定时器；或者
    所述接收端将接收到的所述RLC数据包的分段按照分段顺序进行排列后，若顺序排列的两个相邻分段中间存在分段没有接收到开启的定时器。
  7. 根据权利要求5所述的方法，还包括：
    若所述接收端接收到所述RLC数据包的所有分段后，且所述定时器未超时，则停止所述定时器。
  8. 根据权利要求1至7中任一项所述的方法，其中，所述通过所述目标数据包的包头，判断所述目标数据包是否为RLC数据包的分段的步骤之前，所述方法还包括：
    若所述接收端在RLC层接收到目标数据包，则根据所述目标数据包的编号，判断所述目标数据包是否为重复RLC数据包；
    若所述目标数据包为重复RLC数据包，则丢弃所述目标数据包；
    若所述目标数据包不为重复RLC数据包，则执行所述通过所述目标数据包的包头判断所述目标数据包是否为RLC数据包的分段的步骤。
  9. 根据权利要求8所述的方法，还包括：
    记录所述RLC层的状态信息；
    其中，所述状态信息包括预设编号长度范围内的各RLC数据包的状态和编号，且所述各RLC数据包的状态包括已经上报给所述PDCP层、组包成功、正在组包或者未接收到。
  10. 根据权利要求9所述的方法，还包括：
    确定所述预设编号长度范围的上边界编号和下边界编号。
  11. 如权利要求10所述的方法，其中，若接收到数据包的编号未翻转，所述预设编号长度范围的上边界编号为：接收到的数据包的编号中的最大编号、接收到的数据包的编号中的最大编号加1、接收到的数据包的编号中的最大编号减1或者所述预设编号长度范围的下边界编号加上所述预设编号长度范围再减1；
    若接收到数据包的编号翻转，所述预设编号长度范围的上边界编号为：接收到的数据包的编号中翻转的编号中的最大编号、接收到的数据包的编号中翻转的编号中的最大编号加1、接收到的数据包的编号中翻转的编号中的最大编号减1或者将第一计算结果对所述预设编号长度范围进行取余运算得到的编号，所述第一计算结果为所述预设编号长度范围的下边界编号加上所述预设编号长度范围再减1得到的计算结果。
  12. 如权利要求10所述的方法，其中，若接收到数据包的编号未翻转，所述预设编号长度范围的下边界编号为：接收到的数据包的编号中的最小编号、接收到的数据包的编号中的最小编号加1、接收到的数据包的编号中的最小编号减1或者所述预设编号长度范围的上边界编号减去所述预设编号长度范围再加1；
    若接收到数据包的编号翻转，所述预设编号长度范围的下边界编号为：接收到的数据包的编号中未翻转的编号中的最小编号、接收到的数据包的编号中未翻转的编号中的最小编号加1、接收到的数据包的编号中未翻转的编号中的最小编号减1或者将第二计算结果加预设最大编号得到的编号，所述第二计算结果为所述预设编号长度范围的上边界编号减去所述预设编号长度范围再加1得到的计算结果。
  13. 根据权利要求11所述的方法，其中，所述确定所述预设编号长度范围的上边界编号和下边界编号的步骤之前，所述方法还包括：
    若接收到数据包的编号小于或者等于所述预设编号长度范围的下边界编号，则确定该数据包的编号翻转；或者
    若接收到数据包的编号小于或者等于第三计算结果，则确定该数据包的编号翻转，所述第三计算结果为所述预设编号长度范围的下边界编号减去所述预设编号长度范围得到的结果。
  14. 根据权利要求8所述的方法，其中，所述根据所述目标数据包的编号，判断所述目标数据包是否为重复RLC数据包的步骤，包括：
    判断所述目标数据包的编号是否为已经上报给所述PDCP层的数据包的编号，若所述目标数据包的编号为已经上报给所述PDCP层的数据包的编号，则确定所述目标数据包为重复RLC数据包；或者
    判断所述目标数据包的编号是否为组包成功的数据包的编号，若所述目标数据包的编号为组包成功的数据包的编号，则确定所述目标数据包为重复RLC数据包；或者
    判断预设编号长度范围内是否存在编号与所述目标数据包的编号相同的数据包，若所述预设编号长度范围内存在编号与所述目标数据包的编号相同的数据包，则确定所述目标数据包为重复RLC数据包。
  15. 根据权利要求1至14中任一项所述的方法，还包括：
    在所述PDCP层接收到所述RLC层上报的RLC数据包后，对于判断接收失败的失败数据包，将所述失败数据包通知所述RLC层。
  16. 根据权利要求15所述的方法，其中，所述对于判断接收失败的失败数据包，将所述失败数据包通知所述RLC层的步骤，包括：
    在所述PDCP层记录接收到的RLC数据包的编号，并确定判断接收失败的失败数据包在所述RLC层的编号，将所述失败数据包在所述RLC层的编号通知所述RLC层。
  17. 根据权利要求15所述的方法，其中，所述对于判断接收失败的失败数据包，将所述失败数据包通知所述RLC层的步骤之后，所述方法还包括：
    若所述RLC层存储有所述失败数据包的分段，则丢弃所述失败数据包的分段；或者
    若在所述RLC层正在执行所述失败数据包的组包过程，则停止所述失败数据包的组包过程，停止所述组包过程开启的定时器，以及丢弃所述失败数据包的组包过程使用的分段。
  18. 一种接收端，包括：
    第一分段判断模块，用于若所述接收端在无线链路控制RLC层接收到目标数据包，则通过所述目标数据包的包头，判断所述目标数据包是否为RLC 数据包的分段；
    分段排列模块，用于若所述目标数据包为RLC数据包的分段，则将所述接收端接收到的所述RLC数据包的分段进行排列；
    组包模块，用于若所述接收端接收到所述RLC数据包的所有分段，则将所述RLC数据包的所有分段进行组包，得到所述RLC数据包；
    上报模块，用于向PDCP层上报所述RLC数据包。
  19. 根据权利要求18所述的接收端，其中，所述第一分段判断模块用于判断所述目标数据包的包头是否包括分段包的格式指示，若所述目标数据包的包头包括分段包的格式指示，则确定所述目标数据包为RLC数据包的分段；或者
    所述第一分段判断模块用于判断所述目标数据包的包头是否包括分段位置信息，若所述目标数据包的包头包括分段位置信息，则确定所述目标数据包为RLC数据包的分段。
  20. 根据权利要求18或19所述的接收端，还包括：
    第二分段判断模块，用于若所述目标数据包为RLC数据包的分段，则判断所述目标数据包是否为所述接收端接收到的所述RLC数据包的分段的重复分段；
    第一丢弃模块，用于若所述目标数据包为所述接收端接收到的所述RLC数据包的分段的重复分段，则丢弃所述目标数据包。
  21. 根据权利要求18-20任一项所述的接收端，其中，所述分段排列模块用于将所述接收端接收到的所述RLC数据包的分段按分段顺序进行顺序排列；或者
    所述分段排列模块用于将所述接收端接收到的所述RLC数据包的分段进行随机排列。
  22. 根据权利要求18-21任一项所述的接收端，还包括：
    第二丢弃模块，用于定时器超时，则停止所述RLC数据包的组包过程，并将所述接收端存储的所述RLC数据包的分段丢弃。
  23. 根据权利要求22所述的接收端，其中，所述定时器包括：
    所述接收端首次接收到所述RLC数据包的分段开启的定时器；或者
    所述接收端在接收到所述RLC数据包的分段之后，又一次接收到所述RLC数据包的分段开启的定时器；或者
    所述接收端将接收到的所述RLC数据包的分段按照分段顺序进行排列后，若顺序排列的两个相邻分段中间存在分段没有接收到开启的定时器。
  24. 根据权利要求22所述的接收端，还包括：
    停止模块，用于若所述接收端接收到所述RLC数据包的所有分段后，且所述定时器未超时，则停止所述定时器。
  25. 根据权利要求18至24中任一项所述的接收端，还包括：
    数据包判断模块，用于若所述接收端在无线链路控制RLC层接收到目标数据包，则根据所述目标数据包的编号，判断所述目标数据包是否为重复RLC数据包；
    第三丢弃模块，用于若所述目标数据包为重复RLC数据包，则丢弃所述目标数据包；
    所述第一分段判断模块用于若所述目标数据包不为重复RLC数据包，则执行所述通过所述目标数据包的包头判断所述目标数据包是否为RLC数据包的分段的步骤。
  26. 根据权利要求25所述的接收端，还包括：
    记录模块，用于记录所述RLC层的状态信息；
    其中，所述状态信息包括预设编号长度范围内的各RLC数据包的状态和编号，且所述各RLC数据包的状态包括已经上报给所述PDCP层、组包成功、正在组包或者未接收到。
  27. 根据权利要求26所述的接收端，还包括：
    第一确定模块，用于确定所述预设编号长度范围的上边界编号和下边界编号。
  28. 根据权利要求27所述的接收端，其中，
    若接收到数据包的编号未翻转，所述预设编号长度范围的上边界编号为：接收到的数据包的编号中的最大编号、接收到的数据包的编号中的最大编号加1、接收到的数据包的编号中的最大编号减1或者所述预设编号长度范围的下边界编号加上所述预设编号长度范围再减1；
    若接收到数据包的编号翻转，所述预设编号长度范围的上边界编号为：接收到的数据包的编号中翻转的编号中的最大编号、接收到的数据包的编号中翻转的编号中的最大编号加1、接收到的数据包的编号中翻转的编号中的最大编号减1或者将第一计算结果对所述预设编号长度范围进行取余运算得到的编号，所述第一计算结果为所述预设编号长度范围的下边界编号加上所述预设编号长度范围再减1得到的计算结果。
  29. 根据权利要求27所述的接收端，其中，
    若接收到数据包的编号未翻转，所述预设编号长度范围的下边界编号为：接收到的数据包的编号中的最小编号、接收到的数据包的编号中的最小编号加1、接收到的数据包的编号中的最小编号减1或者所述预设编号长度范围的上边界编号减去所述预设编号长度范围再加1；
    若接收到数据包的编号翻转，所述预设编号长度范围的下边界编号为：接收到的数据包的编号中未翻转的编号中的最小编号、接收到的数据包的编号中未翻转的编号中的最小编号加1、接收到的数据包的编号中未翻转的编号中的最小编号减1或者将第二计算结果加预设最大编号得到的编号，所述第二计算结果为所述预设编号长度范围的上边界编号减去所述预设编号长度范围再加1得到的计算结果。
  30. 根据权利要求28所述的接收端，还包括：
    第二确定模块，用于若接收到数据包的编号小于或者等于所述预设编号长度范围的下边界编号，则确定该数据包的编号翻转；或者
    第三确定模块，用于若接收到数据包的编号小于或者等于第三计算结果，则确定该数据包的编号翻转，所述第三计算结果为所述预设编号长度范围的下边界编号减去所述预设编号长度范围得到的结果。
  31. 根据权利要求25所述的接收端，其中，所述数据包判断模块用于判断所述目标数据包的编号是否为已经上报给所述PDCP层的数据包的编号，若所述目标数据包的编号为已经上报给所述PDCP层的数据包的编号，则确定所述目标数据包为重复RLC数据包；或者
    所述数据包判断模块用于判断所述目标数据包的编号是否为组包成功的数据包的编号，若所述目标数据包的编号为组包成功的数据包的编号，则确 定所述目标数据包为重复RLC数据包；或者
    所述数据包判断模块用于判断预设编号长度范围内是否存在编号与所述目标数据包的编号相同的数据包，若所述预设编号长度范围内存在编号与所述目标数据包的编号相同的数据包，则确定所述目标数据包为重复RLC数据包。
  32. 根据权利要求18至31中任一项所述的接收端，还包括：
    通知模块，用于在所述PDCP层接收到所述RLC层上报的RLC数据包后，对于判断接收失败的失败数据包，将所述失败数据包通知所述RLC层。
  33. 根据权利要求32所述的接收端，其中，所述通知模块用于在所述PDCP层接收到所述RLC层上报的RLC数据包后，在所述PDCP层记录接收到的RLC数据包的编号，并确定判断接收失败的失败数据包在所述RLC层的编号，将所述失败数据包在所述RLC层的编号通知所述RLC层。
  34. 根据权利要求32所述的接收端，还包括：
    第四丢弃模块，用于若所述RLC层存储有所述失败数据包的分段，则丢弃所述失败数据包的分段；或者
    第五丢弃模块，用于若在所述RLC层正在执行所述失败数据包的组包过程，则停止所述失败数据包的组包过程，停止所述组包过程开启的定时器，以及丢弃所述失败数据包的组包过程使用的分段。
  35. 一种接收端，包括：
    处理器；以及
    存储器，用于存储可在所述处理器上运行的计算机程序；
    其中所述处理器用于执行所述计算机程序实现如权利要求1-17中任一项所述的方法中的步骤。
  36. 一种计算机可读存储介质，所述计算机可读存储介质上存储有计算机程序，所述计算机程序被处理器执行时实现如权利要求1-17中任一项所述的方法中的步骤。
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