WO2016131345A1 - Procédé et dispositif de traitement de données - Google Patents

Procédé et dispositif de traitement de données Download PDF

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Publication number
WO2016131345A1
WO2016131345A1 PCT/CN2016/070259 CN2016070259W WO2016131345A1 WO 2016131345 A1 WO2016131345 A1 WO 2016131345A1 CN 2016070259 W CN2016070259 W CN 2016070259W WO 2016131345 A1 WO2016131345 A1 WO 2016131345A1
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WO
WIPO (PCT)
Prior art keywords
pdu
reordering window
time
transmission time
received
Prior art date
Application number
PCT/CN2016/070259
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English (en)
Chinese (zh)
Inventor
王达菲
Original Assignee
中兴通讯股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Publication of WO2016131345A1 publication Critical patent/WO2016131345A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/40—Network security protocols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/30—Definitions, standards or architectural aspects of layered protocol stacks
    • H04L69/32—Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level
    • H04L69/322—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0009—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the channel coding
    • H04L1/001—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the channel coding applied to control information

Definitions

  • This application relates to, but is not limited to, mobile communication technologies.
  • FIG. 1 is a schematic diagram of a long-term evolution user plane protocol stack of the related art, as shown in FIG. 1 , in a protocol stack of an evolved terrestrial radio access network node B (eNB, E-URTAN Node B) and user equipment (UE, User Equipment)
  • eNB evolved terrestrial radio access network node B
  • UE User Equipment
  • the high-level to the lower layer includes: Packet Data Convergence Protocol (PDCP) layer, Radio Link Control (RLC) layer, Medium Access Control (MAC) layer, Physical layer PHY (Physical layer) ).
  • PDCP Packet Data Convergence Protocol
  • RLC Radio Link Control
  • MAC Medium Access Control
  • Physical layer PHY Physical layer
  • the transmitting end When the transmitting end needs to transmit the service data to the receiving end, the transmitting end processes the received service data through the PDCP layer, the RLC layer, and the MAC layer of the eNB, and finally reaches the PHY layer of the transmitting end, and the transmitting end sends the service through the physical path of the PHY layer.
  • the PHY layer to the receiving end is processed by the MAC layer, the RLC layer, and the PDCP layer of the receiving end, and delivered to the upper layer of the receiving end.
  • the sender and the receiver may be an eNB and a UE, respectively, or may be a UE and an eNB, respectively.
  • FIG. 2 is a schematic diagram of a data block transmitted by a MAC.
  • a transport block (TB, Transfer Block) includes a MAC header and a Service Data Unit (SDU), and the MAC SDU includes an RLC header.
  • the RLC SDU includes the PDCP header and the PDCP SDU.
  • FIG. 3 is a schematic diagram of the structure of the related art RLC and PDCP. As shown in FIG. 3, through analysis, only the RLC sequence number (SN) is included in the RLC header.
  • SN RLC sequence number
  • the MAC layer of the eNB should receive the data TB1, TB2, ..., TBn from the PHY, but since the TB1 is lost in the wireless transmission, the MAC first receives the TB2. , ..., TBn, received the retransmitted TB1 after a period of time, where the RLC SN included in TB1 is recorded as R_SN1, the included PDCP SN is recorded as P_SN1, and the RLC SN included in TBn is recorded as R_SN n .
  • the included PDCP SN is recorded as P_SNn, and the RLC SN length is configured as 5 bits.
  • the reordering window of the RLC at this time is [R_SN n–16 , R_SN n ], if the received R_SN 1 falls outside the reordering window.
  • the upper edge of the reordering window is updated to be R_SN 1 , and then the Protocol Data Unit (PDU) included in the RLC SDU is delivered to the PDCP.
  • PDU Protocol Data Unit
  • the P_SN1 included in the PDU is smaller than the P_SNn that is expected to be received, it will be regarded as the next round of the message, and the PDCP superframe number (HFN, Hyper Frame Number) needs to be added by 1, and The message is decrypted.
  • HFN Hyper Frame Number
  • the reordering window of the home has been decrypted by the delivery user message, that is, the PDCP HFN cannot be added to the processing. If the processing is not performed, the subsequent PDU sequencing may be incorrect. Text decryption will fail, resulting in data service disruption.
  • the present invention provides a method and apparatus for implementing data processing, which can correctly process PDUs that fall outside the reordering window to ensure correct ordering of the PDU by the UE.
  • a method of implementing data processing including:
  • the first transmission of the last PDU in the received reordering window is later than the time of the first transmission of the PDU that falls outside the reordering window, discarding the PDU that falls outside the reordering window.
  • the carrying the time information in each protocol data unit PDU that is first sent to the radio link control RLC includes: adding an air interface transmission time to the PDU;
  • the air interface transmission time is: the multimedia transmission control layer MAC of the evolved terrestrial radio access network node B eNB indicates the time when the physical layer PHY of the user equipment UE first transmits the transport block TB.
  • the adding the air interface transmission time to the PDU includes: encapsulating the air interface transmission time at an interface of the PDU.
  • the air interface transmission time is timing information including a frame number and a subframe number obtained from the system.
  • the PDU received by the RLC falls outside the reordering window, and the first transmission of the last PDU in the received reordering window is earlier than the first transmission time of the PDU that falls outside the reordering window.
  • the method includes: adding a PDU outside the reordering window to an upper edge of a new reordering window.
  • An apparatus for implementing data processing comprising: an adding unit, a determining unit, and a processing unit; wherein
  • Adding a unit configured to: carry time information in each protocol data unit PDU that is first sent to the radio link control RLC;
  • the determining unit is configured to: when the PDU received by the RLC falls outside the reordering window, determine, according to the carried time information, whether the first sending time of the last PDU in the received reordering window is later than falling outside the reordering window. The time when the PDU was first sent;
  • the processing unit is configured to: determine, by the determining unit, that the first transmission of the last PDU in the received reordering window is later than the first transmission time of the PDU that falls outside the reordering window, discarding the PDU that falls outside the reordering window .
  • the adding unit is configured to: perform an interface air interface transmission time of each protocol data unit PDU that is first sent to the radio link control RLC to carry time information;
  • the air interface transmission time is: the MAC of the eNB indicates the time when the PHY of the UE first transmits the TB.
  • the air interface transmission time is timing information including a frame number and a subframe number obtained from the system.
  • the processing unit is further configured to: when the determining unit determines that the first transmission of the last PDU in the received reordering window is earlier than the time of the first transmission of the PDU that falls outside the reordering window, The PDU outside the sort window is added to the upper edge of the new reorder window.
  • a computer readable storage medium storing computer executable instructions for performing the method of any of the above.
  • the technical solution of the present application includes: transmitting to the wireless link control for the first time.
  • Carrying time information in each protocol data unit (PDU) of the (RLC) further comprising: determining, according to the carried time information, whether the first transmission time of the last PDU in the received reordering window is later than falling outside the reordering window The time of the first transmission of the PDU; the first transmission of the last PDU in the received reordering window is later than the time of the first transmission of the PDU that falls outside the reordering window, and the PDU that falls outside the reordering window is discarded.
  • the method of the embodiment of the present invention discards the PDUs that fall outside the reordering window, which is earlier than the time of the first transmission of the last PDU in the reordering window, to ensure that the UE correctly sorts the PDUs and implements the packet.
  • the decryption is successful, and the service interruption caused by not discarding the part of the PDU is avoided.
  • FIG. 1 is a schematic diagram of a long-term evolution user plane protocol stack of the related art
  • FIG. 2 is a schematic diagram of a data block transmitted by a MAC
  • FIG. 3 is a schematic structural diagram of a related art RLC and PDCP
  • FIG. 4 is a flowchart of a method for implementing data processing according to an embodiment of the present invention.
  • FIG. 5 is a structural diagram of an apparatus for data processing according to an embodiment of the present invention.
  • Figure 6 is a flow chart of a method in accordance with a first embodiment of the present invention.
  • FIG. 4 is a flowchart of a method for implementing data processing according to an embodiment of the present invention. As shown in FIG. 4, the method includes:
  • Step 400 Carry time information in each protocol data unit (PDU) that is first sent to the radio link control (RLC);
  • the PDU sent to the RLC is sent after receiving the TB from the UE. PDU.
  • the carrying time information includes: adding an air interface transmission time to the PDU; wherein, the air interface transmission time is: the MAC of the eNB indicates the time when the PHY of the UE sends the TB for the first time.
  • the adding the air interface transmission time may include: transmitting the air interface transmission time in the interface of the PDU.
  • the air interface transmission time is timing information including a frame number and a subframe number obtained from the system.
  • Step 401 When the PDU received by the RLC falls outside the reordering window, determine, according to the carried time information, whether the first transmission time of the last PDU in the received reordering window is later than the first time of the PDU falling outside the reordering window. Time sent
  • Step 402 The first transmission of the last PDU in the received reordering window is later than the time of the first transmission of the PDU that falls outside the reordering window, and the PDU that falls outside the reordering window is discarded.
  • the PDU received by the RLC falls outside the reordering window, and the first PDU of the received reordering window is earlier than the first time of the PDU that is outside the reordering window. : Add the PDU outside the reordering window to the upper edge of the new reordering window.
  • the method of the embodiment of the present invention discards the PDUs that fall outside the reordering window, which is earlier than the time of the first transmission of the last PDU in the reordering window, to ensure that the UE correctly sorts the PDUs and implements the packet.
  • the decryption is successful, and the service interruption caused by not discarding the part of the PDU is avoided.
  • FIG. 5 is a structural diagram of an apparatus for data processing according to an embodiment of the present invention, including: an adding unit 51, a determining unit 52, and a processing unit 53;
  • the adding unit 51 is configured to: carry time information in each protocol data unit PDU that is first sent to the radio link control RLC;
  • the adding unit 51 is configured to transmit the interface air interface transmission time of each protocol data unit PDU that is first sent to the radio link control RLC to carry time information;
  • the air interface transmission time is: the MAC of the eNB indicates the time when the PHY of the UE sends the TB for the first time.
  • the air interface transmission time is timing information including a frame number and a subframe number obtained from the system.
  • the determining unit 52 is configured to: when the PDU received by the RLC falls outside the reordering window, determine, according to the carried time information, whether the first sending time of the last PDU in the received reordering window is later than falling outside the reordering window. The time of the first transmission of the PDU;
  • the processing unit 53 is configured to: determine that the first transmission of the last PDU in the received reordering window is later than the time of the first transmission of the PDU that falls outside the reordering window, and discard the falling outside the reordering window. PDU.
  • the processing unit 53 is further configured to determine, when the determining unit determines that the first transmission of the last PDU in the received reordering window is earlier than the time of the first transmission of the PDU that falls outside the reordering window, the PDU outside the reordering window Add to the top edge of the new reordering window.
  • FIG. 6 is a flowchart of a method according to the first embodiment of the present invention. As shown in FIG.
  • Step 600 the MAC of the eNB receives the TB from the UE
  • Step 601 The MAC carries an air interface transmission time when sending the PDU to the RLC.
  • the air interface transmission time is: the MAC of the eNB indicates the time when the PHY of the UE sends the TB for the first time;
  • the first transmission can be obtained by retransmission identification or related information is obtained.
  • Step 602 When receiving the PDU that falls outside the reordering window, the RLC determines, according to the air interface transmission time, whether the PDU is later than the air interface transmission time of the last PDU in the reordering window.
  • step 603 When the air interface transmission time of the PDU outside the reordering window is earlier than the air interface transmission time of the last PDU in the reordering window, step 603 is performed; the air interface transmission time PDU outside the reordering window is later than the last PDU in the reordering window.
  • step 604 When the air interface transmits time, step 604 is performed, and the RLC updates the reordering window according to the prior art.
  • Step 603 The RLC discards the PDU.
  • Step 604 The RLC adds the PDU outside the reordering window to the upper edge of the new reordering window.
  • the computer program can be implemented in a computer readable storage medium, the computer program being executed on a corresponding hardware platform (such as a system, device, device, device, etc.), when executed, including One or a combination of the steps of the method embodiments.
  • all or part of the steps of the above embodiments may also be implemented by using an integrated circuit. These steps may be separately fabricated into individual integrated circuit modules, or multiple modules or steps may be fabricated into a single integrated circuit module. achieve.
  • the devices/function modules/functional units in the above embodiments may be implemented by a general-purpose computing device, which may be centralized on a single computing device or distributed over a network of multiple computing devices.
  • the device/function module/functional unit in the above embodiment When the device/function module/functional unit in the above embodiment is implemented in the form of a software function module and sold or used as a stand-alone product, it can be stored in a computer readable storage medium.
  • the above mentioned computer readable storage medium may be a read only memory, a magnetic disk or an optical disk or the like.
  • the PDUs that fall outside the reordering window of the time of the first transmission of the last PDU in the reordering window are discarded by the time information, so that the correct ordering of the PDUs by the UE is ensured, and the success of the packets is achieved.
  • Decryption avoids service interruption caused by not discarding part of the PDU.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Quality & Reliability (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Communication Control (AREA)

Abstract

L'invention concerne un procédé et un dispositif de traitement de données, le procédé consistant à : introduire des informations temporelles dans chaque unité de données de protocole (PDU) d'abord transmise à une commande de liaison radio (RLC) ; déterminer, en fonction des informations temporelles introduites, si le premier temps de transmission de la dernière PDU reçue dans une fenêtre de reclassement est ultérieur au premier temps de transmission d'une PDU située hors de la fenêtre de reclassement ; et, si tel est le cas, abandonner la PDU située hors de la fenêtre de reclassement.
PCT/CN2016/070259 2015-07-06 2016-01-06 Procédé et dispositif de traitement de données WO2016131345A1 (fr)

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CN201510392479.2A CN106341368A (zh) 2015-07-06 2015-07-06 一种实现数据处理的方法及装置
CN201510392479.2 2015-07-06

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CN115066975A (zh) * 2020-01-28 2022-09-16 哲库科技有限公司 使用集成电路的层2下行数据在线处理

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CA3086722C (fr) 2018-02-06 2023-01-03 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Procede de commande de transmission de donnees et produit associe
CN111131179B (zh) * 2019-12-05 2022-01-25 中移（杭州）信息技术有限公司 业务处理方法、装置、网络设备及存储介质
CN115794782A (zh) * 2021-09-09 2023-03-14 青岛海尔洗衣机有限公司 数据处理方法、装置、服务器及存储介质

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US20120188987A1 (en) * 2009-10-07 2012-07-26 Qualcomm Incorporated Apparatus and Method for Facilitating Handover in TD-SCDMA Systems
CN103516492A (zh) * 2012-06-18 2014-01-15 中兴通讯股份有限公司 数据缓存方法及装置
CN103888219A (zh) * 2014-03-11 2014-06-25 华为技术有限公司 接收非确认无线链路控制层数据的方法及装置

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115066975A (zh) * 2020-01-28 2022-09-16 哲库科技有限公司 使用集成电路的层2下行数据在线处理
CN115066975B (zh) * 2020-01-28 2023-10-31 哲库科技(上海)有限公司 使用集成电路的层2下行数据在线处理

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