WO2008154816A1 - Procédé et dispositif pour émettre et recevoir des données - Google Patents

Procédé et dispositif pour émettre et recevoir des données Download PDF

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Publication number
WO2008154816A1
WO2008154816A1 PCT/CN2008/001176 CN2008001176W WO2008154816A1 WO 2008154816 A1 WO2008154816 A1 WO 2008154816A1 CN 2008001176 W CN2008001176 W CN 2008001176W WO 2008154816 A1 WO2008154816 A1 WO 2008154816A1
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WIPO (PCT)
Prior art keywords
pdcp
pdu
pdus
rlc
rlc pdu
Prior art date
Application number
PCT/CN2008/001176
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English (en)
French (fr)
Inventor
Tao Yang
Original Assignee
Alcatel Shanghai Bell Co., Ltd.
Alcatel Lucent
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Filing date
Publication date
Application filed by Alcatel Shanghai Bell Co., Ltd., Alcatel Lucent filed Critical Alcatel Shanghai Bell Co., Ltd.
Priority to US12/665,076 priority Critical patent/US8614948B2/en
Priority to JP2010512491A priority patent/JP5478487B2/ja
Priority to EP08757453A priority patent/EP2169915A4/en
Publication of WO2008154816A1 publication Critical patent/WO2008154816A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/0078Avoidance of errors by organising the transmitted data in a format specifically designed to deal with errors, e.g. location
    • H04L1/009Avoidance of errors by organising the transmitted data in a format specifically designed to deal with errors, e.g. location arrangements specific to transmitters
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1809Selective-repeat protocols
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1867Arrangements specially adapted for the transmitter end
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00Traffic control in data switching networks
    • H04L47/70Admission control; Resource allocation
    • H04L47/78Architectures of resource allocation
    • H04L47/783Distributed allocation of resources, e.g. bandwidth brokers
    • H04L47/785Distributed allocation of resources, e.g. bandwidth brokers among multiple network domains, e.g. multilateral agreements
    • H04L47/786Mapping reservation between domains
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/02Traffic management, e.g. flow control or congestion control
    • H04W28/06Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
    • H04W28/065Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information using assembly or disassembly of packets

Definitions

  • the present invention relates to a mobile communication technology, and in particular to a data transmission method, a data reception method, and a corresponding device, which can reduce consumption of radio resources in a wireless communication system.
  • the interface between the eNode B (base station) and the user equipment UE is usually referred to as the 'Uu' interface.
  • User-related data is sent and received through the Uu interface.
  • Each of the eNode B and the user equipment UE is generally divided into a Packet Data Convergence Protocol (PDCP) layer, a Radio Link Control (RLC) layer, a Medium Access Control (MAC) layer, and a physical layer, where the packet data convergence protocol described above
  • PDCP Packet Data Convergence Protocol
  • RLC Radio Link Control
  • MAC Medium Access Control
  • the layer, the radio link control layer, and the medium access control layer serve as the L2 layer (the second layer) in the open system interconnection scheme
  • the physical layer serves as the L1 layer (the first layer) in the open system interconnection scheme.
  • the data transmitted at the PDCP layer is called 'PDCP PDU', which includes the sequence number SN and PDCP SDU C PDCP Service Data Unit).
  • the data transmitted at the RLC layer is called 'RCC PDIT, which includes the RLC header and the 'data part' and the data transmitted at the MAC layer is called 'MAC PDU', which includes 'MAC header' and 'MAC SDU'.
  • each PDCP PDU has a PDCP SN (PDCP sequence number).
  • the serial number is necessary for the receiving side because it can ensure the normal operation of the receiving side PDCP, for example, the PDCP layer of the UE works correctly.
  • Figure 1 shows the mapping relationship between PDCP PD13 and RLC SDU.
  • the PDCP PDUs each including the PDCP SN and the PDCP SDU are mapped to one RLCSDU.
  • a continuous RLC SDU has a continuous PDCP SN o and a series of RLC SDUs are sequentially mapped to one RLC PDU. That is, it can be said that a series of PDCP PDUs each including a PDCP SN and a PDCP SDU are mapped into one RLC PDU.
  • a PDCP PDU typically includes a necessary sequence number such as SN-1 and a data portion such as PDCP SDU1, which will be mapped to the RLC layer as part of the data unit transmitted by the layer.
  • each RLC PDU includes an RLC header and an RLC PDU data portion composed of a plurality of PDCU PDUs.
  • multiple RLC PDUs are mapped to the MAC layer as MAC SDUs in the MAC PDU, and then transmitted through the physical layer.
  • the RLC PDU contains a number of consecutive PDCP SNs.
  • the PDCP SN of the first RLC SDU is known, the PDCP SN of the subsequent RLC SDU can be automatically estimated. In other words, there is redundancy in the mapping process from the PDCP layer to the RLC layer, resulting in waste of radio resources.
  • An object of the present invention is to provide a data transmitting method, a data receiving method, and a corresponding device capable of saving radio resources in a mobile wireless communication system.
  • a data transmitting method comprising the steps of: determining whether a PDCP PDU is continuous; and mapping PDC PDUs into a same RLC PDU in a case where PDCP PDUs are consecutive, wherein the plurality of The PDCP SN of the first PDCP PDU in the PDCP PDU is reserved, and the PDPC SN of the other PDCP PDU is removed; and the flag bit in the RLC PDU header is set to a first predetermined value to indicate that the PDCP PDU is continuous .
  • the method further comprises the steps of: mapping a plurality of PDCP PDUs into the same RLC PDU if the PDCP PDUs are discontinuous, wherein PDCP SNs of the plurality of PDCP PDUs are reserved; The flag bit in the PDU header is set to a second predetermined value to indicate that the PDCP PDU is discontinuous.
  • the PDCP SN of one PDCP PDU after the PDCP PDU is reserved in the RLC SDU, and the subsequent PDCP SN is removed.
  • the PDCP SN of the PDCP PDU is not included in the RLC PDU.
  • a data receiving method comprising the steps of: determining whether a flag bit in a header of an RLC PDU is a first predetermined value or a second predetermined value; wherein the flag bit is a first predetermined value
  • the PDCP SN is added to the PDCP PDUs other than the first PDCP PDU in the PDCP DPU included in the RLC PDU in order.
  • the method further comprises the step of: sequentially recovering the respective PDCP PDUs according to the PDCP SN of the PDCP PDUs included in the RLC PDU if the flag bits are the second predetermined value.
  • a data transmitting method including the steps of: determining a PDCP PDU Whether continuous; in the case where the PDCP PDU is discontinuous, mapping multiple PDCP PDUs into respective RLC PDUs, where the PDCP SNs of the plurality of PDCP PDUs are reserved; and in the case where the PDCP PDUs are continuous, A plurality of PDCP PDUs are mapped into the same RLC PDU, wherein a PDCP SN of a first one of the plurality of TOCP PDUs is reserved, and a PDPC SN of other PDCP PDUs is removed.
  • a data receiving method including the steps of: determining whether at least two PDCP PDUs are included in an RLC PDU; and in the case that the determination result is affirmative, the PDCP included in the RLC PDU is sequentially provided.
  • the PDCP PDU is added to the PDCP PDU except the first PDCP PDU in the DPU; and if the judgment result is negative, the corresponding PDCP PDU is directly restored from the RLC PDU.
  • the mapping unit maps a plurality of PDCP PDUs into the same RLC PDU in a case where the PDCP PDUs are discontinuous, wherein PDCP SNs of the plurality of PDCP PDUs are reserved; and the sending control unit
  • the flag bit in the RLC PDU header is set to a second predetermined value to indicate that the PDCP PDU is discontinuous.
  • a data receiving apparatus comprising: a receiving control unit that determines whether a flag bit in a header of an RLC PDU is a first predetermined value or a second predetermined value; and an inverse mapping unit In the case where the flag bit is the first predetermined value, the PDCP SN is added to the PDCP PDUs other than the first PDCP PDU in the PDCP DPU included in the RLC PDU in order.
  • the inverse mapping unit sequentially restores each PDCP PDU according to the PDCP SN of the PDCP PDU included in the RLC PDU.
  • a data transmitting device including: a sending control unit that determines whether a PDCP PDU is continuous; and a mapping unit that maps multiple PDCP PDUs to respective ones when the PDCP PDUs are discontinuous In the RLC PDU, wherein the PDCP SNs of the plurality of PDCP PDUs are reserved; and in the case that the PDCP PDUs are consecutive, mapping the plurality of PDCP PDUs into the same RLC PDU, wherein the plurality of the PDCP PDUs The PDCP SN of one PDCP PDU is reserved, while the PDPC SN of other PDCP PDUs is removed.
  • a data receiving device comprising: a receiving control unit, Determining whether at least two PDCP PDUs are included in the RLC PDU; and in the case of affirmative, the PDCP PDU included in the RLC PDU is added with PDCP in addition to the first PDCP PDU except the first PDCP PDU. SN ; and if the judgment result is negative, the corresponding PDCP PDU is directly restored from the RLC PDU o
  • FIG. 2 illustrates the operation of an LTE user plane in accordance with the prior art
  • FIG. 3 illustrates a data transmission process through a Uu interface according to an embodiment of the present invention
  • FIG. 4 illustrates a data receiving process through a Uu interface according to an embodiment of the present invention
  • FIG. 5 is a schematic structural diagram of a transmitting side according to an embodiment of the present invention.
  • Fig. 6 is a block diagram showing the structure of a receiving side according to an embodiment of the present invention. detailed description
  • FIG. 3 illustrates a data transmission process through a Uu interface in accordance with an embodiment of the present invention.
  • the PDCP PDUs are contiguous, only the first PDCP PDU in the series of PDCP PDUs is entirely mapped into the RLC PDU, and the subsequent PDCP PDUs are removed from the PDCP SN, that is, the subsequent PDCP.
  • the SDUs are consecutively concatenated behind the first PDCP SDU to form an RLC SDU.
  • the RLC PDU carries only the first PDCP SN and removes the remaining PDCP SN.
  • the RLC PDU When the first concatenated portion of the PDCP layer is the last portion of the RLC PDU, the RLC PDU will carry the PDCP SN of the second concatenated portion and remove the subsequent PDCP SN.
  • a bit flag can be added to the header of the RLC PDU, and And let this flag be 1, which means that the PDCP PDU is continuous. In this way, at the receiving end, based on the value of the flag bit, it can be determined which way to perform the inverse mapping.
  • the PDCP PDUs are not contiguous, they are processed in the existing manner, that is, all PDCP PDUs are mapped to a single RLC PDU without removing the SN of any PDCP PDU.
  • the PDCP SDU is indicated to be discontinuous by setting the flag bit in the RLC PDU header to 0.
  • the RLC PDU contains only one RLC PDU or its segment
  • the PDCP SN is included in the first segment, that is, the RLC PDU contains only one segment, and the segment is not the first segment of the original RLC SDU , no PDCP SN is required.
  • FIG. 4 illustrates a data receiving process through a Uu interface in accordance with an embodiment of the present invention.
  • the received RLC PDU contains more than one RLC PDU
  • the flag bit is detected in the header of the RLC PDU
  • the SN is known, so the SN is added to the RLC SDU after the first RLC SDU in order.
  • the flag bit in the RLC PDU header is 0, this means that the PDCP PDUs are not contiguous, and each PDCP PDU carries its own SN, so there is no need to add an SN.
  • the receiving side knows that the PDCP PDU is continuous.
  • SNs are added to each RLC SDU except the first RLC SDU in order. If the PDCP SN of the first RLC SDU is n, the PDCP SN of the second RLC SDU is n+ 1 , and the PDCP SN of the third RLC SDU is n + 2, .... Thus, all RLC SDUs are reformed in order.
  • the RLC PDU contains only one RLC SDU segment and the segment is not the first segment, then PDCP SNc is not required.
  • the first concatenated portion is the last segment of the RLC SDU, only the PDCP SN corresponding to the second concatenated portion is included in the RLC PDU.
  • the receiving side can determine whether the two special cases are the above by using the blocking information in the RLC PDU header.
  • the block information in the RLC PDU header indicates that the block in the RLC SDU is a PDCP.
  • the first block of the PDU that is, the block contains the PDCP SN.
  • the block information in the RLC PDU header may also indicate that the block in the RLC SDU is the last block of a PDCP PDU.
  • the RLC PDU contains only one RLC SDU or its segmentation, it is not necessary to add the flag bit in the RLC PDU header to indicate that the PDCP PDU is continuous or discontinuous, because in the case of discontinuity, all RLC SDUs are mapped to different RLC PDUs, respectively, with their respective PDCP SNo
  • the receiving side can know that the PDCP PDUs must be contiguous, thereby adding PDCP SNs to different RLC PDUs in order.
  • the receiving side can distinguish whether the PDCP PDU is continuous or discontinuous.
  • the PDCP SN of each PDCP PDU is not transmitted over the air interface, thereby saving radio resources.
  • FIG. 5 shows a schematic structural diagram of a transmitting side according to an embodiment of the present invention.
  • the transmitting side 10 includes a transmitting side control unit 11 and a mapping unit 12.
  • a series of PDCP PDUs are input to the transmission control unit 11, and the transmission control unit 11 judges whether or not at least two RLC SDUs are to be included in the RLC PDU.
  • the mapping unit 12 will only include the PDCP S of the first RLC SDU among the plurality of RLC SDUs to be included in the RLC PDU. It is retained, and the PDCP SN of the subsequent RLC SDU is removed. In other words, the mapping unit 12 concatenates the PDCP SDUs of the plurality of RLC PDUs, and retains only the SN of the first PDCP of the PDCP SDUs.
  • the mapping unit 12 will carry the PDCP SN of the second concatenated portion and remove the subsequent PDCP SN.
  • the transmission control unit 11 can set the flag bit in the header of the RLC PDU to 1, to inform the receiving side that the PDCP PDU is continuous.
  • mapping unit 12 can treat all PDCPs.
  • the PDU is concatenated in one RLC PDU and the PDCP SN is not removed.
  • the transmission control unit 11 may set the flag bit in the header of the RLC PDU to 0, so as to inform the receiving side that the PDCP PDU is not contiguous, and therefore does not remove the PDCP SNo.
  • the RLC PDU contains only one RLC SDU or its segment, as described above, since there is segmentation information in the RLC PDU header, it is not necessary to use the flag of the RLC PDU header.
  • different PDCP SDUs may be mapped into corresponding RLC PDUs respectively, and have respective PDCP SNs. In this case, it is not necessary to inform the receiving side through the flag bit whether the PDCP PDU is contiguous.
  • Fig. 6 is a block diagram showing the structure of a receiving side according to an embodiment of the present invention. As shown in Figure 6, the RLC PDUs decomposed from the MAC layer are further decomposed into data packets of the corresponding logical channel for subsequent processing.
  • the receiving side 20 according to an embodiment of the present invention includes a receiving control unit 21 and an inverse mapping unit 22.
  • the receiving control unit 21 After receiving the RLC PDU from the MAC layer, the receiving control unit 21 first determines whether the flag bit in the RLC PDU header is 1 or 0.
  • the inverse mapping unit 22 adds the PDCP SN to the PDCU PDUs following the first PDCP PDU in order.
  • the receiving side can distinguish whether the PDCP PDU is continuous or discontinuous. In the continuous case, the PDCP SN of each PDCP PDU is not transmitted over the air interface, thereby saving radio resources.

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  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
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Description

数据发送方法、 数据接收方法和设备 技术领域
本发明涉及移动通信技术, 具体涉及一种数据发送方法、 数据接收方法和相 应的设备, 能够减少在无线通信系统中的无线电资源的消耗。 背景技术
在 3G以及演进的 3G通信系统中, 通常将 eNode B (基站)与用户设备 UE之 间的接口称为 'Uu ' 接口。 与用户相关的数据通过该 Uu接口进行发送和接收。
eNode B和用户设备 UE中的每一侧都通常分成分组数据汇聚协议 (PDCP ) 层、 无线链路控制 (RLC)层、 介质访问控制 (MAC)层和物理层, 其中上述的分 组数据汇聚协议层、无线链路控制层和介质访问控制层作为幵放系统互连方案中 的 L2层 (第二层), 而物理层作为开放系统互连方案中的 L1层 (第一层)。
在 PDCP层传输的数据称为 ' PDCP PDU',它包括序列号 SN和 PDCP SDU C PDCP 业务数据单元)'。 在 RLC层传输的数据称为 ' RLC PDIT , 它包括 RLC报头和 '数 据部分'而在 MAC层传输的数据称为 'MAC PDU',它包括 'MAC报头'和 'MAC SDU '。
通常, 每个 PDCP PDU都具有一个 PDCP SN ( PDCP序列号)。 该序列号对于 接收侧来说是必须的, 因为它可以保证接收侧 PDCP的正常工作, 例如 UE的 PDCP 层正确工作。 图 1示出了 PDCP PD13和 RLC SDU之间的映射关系。 在这种情况下, 每个均包括 PDCP SN和 PDCP SDU的 PDCP PDU映射到一个 RLCSDU。连续的 RLC SDU 具有连续的 PDCP SN o 而一系列的 RLC SDU被顺序映射到一个 RLC PDU。 即, 可 以说每个均包括 PDCP SN和 PDCP SDU的一系列 PDCP PDU被映射到一个 RLC PDU 中。
如图 1所示,例如 PDCP PDU通常包括必须的序列号例如 SN—1和数据部分例 如 PDCP SDU1 , 它将被映射到 RLC层作为该层传输的数据单元的一部分。
在这种情况下, 以发送侧为例,用户平面的操作过程如图 2所示。多个 PDCP PDU被映射到一个 RLC数据分组的数据体部分, 例如逻辑信道 1 的 PDCP PDU_1 到 PDCP PDU_n被映射为 RLC层数据分组的 RLC PDU。 换言之每个 RLC PDU包括 RLC报头和由多个 PDCU PDU构成的 RLC PDU数据部分。 如图 2所示, 多个 RLC PDU被映射到 MAC层作为 MAC PDU中的 MAC SDU, 进 而通过物理层发送出去。
因此,在连续 PDCP PDU是连续的情况下, RLC PDU包含了许多的连续的 PDCP SN。 但是, 由于 PDCP PDU的连续性, 如果已知第一个 RLC SDU的 PDCP SN, 则可 以自动地估计后续的 RLC SDU的 PDCP SN。 换言之, 在 PDCP 层到 RLC层的映射 过程中存在着冗余, 造成了无线电资源的浪费。 发明内容
鉴于上述问题, 提出了本发明。本发明的目的是提供一种数据发送方法、数 据接收方法和相应的设备, 能够在移动无线通信系统中节省无线电资源。
根据本发明的一个方面,提出了一种数据发送方法,包括步骤:判断 PDCP PDU 是否连续; 在 PDCP PDU是连续的情况下, 将多个 PDCP PDU映射到同一 RLC PDU中, 其中所述多个 PDCP PDU中的第一个 PDCP PDU的 PDCP SN被保留, 而其它 PDCP PDU 的 PDPC SN被去除; 以及将所述 RLC PDU报头中的标志位设置为第一预定值, 以表 示 PDCP PDU是连续的。
根据一个实施例, 该方法还包括步骤: 在 PDCP PDU不连续的情况下, 将多 个 PDCP PDU映射到同一 RLC PDU中, 其中所述多个 PDCP PDU的 PDCP SN都被保留; 将所述 RLC PDU报头中的标志位设置为第二预定值, 以表示 PDCP PDU是不连续的。
根据一个实施例, 如果要将一个 PDCP PDU的最后部分映射到 RLC PDU , 则在 该 RLC SDU中保留该 PDCP PDU之后一个 PDCP PDU的 PDCP SN, 而将之后的 PDCP SN 去除。
根据一个实施例, 如果 RLC PDU仅仅包含 PDCP PDU的一段, 并且该段并不是 该 PDCP PDU的第一分段, 则该 RLC PDU中不包括该 PDCP PDU的 PDCP SN。
在本发明的另一方面, 提出了一种数据接收方法, 包括步骤: 判断 RLC PDU 的报头中的标志位是否是第一预定值还是第二预定值; 在标志位是第一预定值的 情况下, 按照顺序给该 RLC PDU所包括的 PDCP DPU中除第一个 PDCP PDU之外的 PDCP PDU添加 PDCP SN。
根据一个实施例, 该方法还包括步骤: 在标志位是第二预定值的情况下, 根据 RLC PDU所包含的 PDCP PDU的 PDCP SN来依次恢复各个 PDCP PDU。
在本发明的又一方面, 提出了一种数据发送方法, 包括步骤: 判断 PDCP PDU 是否连续;在 PDCP PDU不连续的情况下,将多个 PDCP PDU分别映射到各自的 RLC PDU 中' 其中所述多个 PDCP PDU的 PDCP SN都被保留; 以及在 PDCP PDU是连续的情况 下, 将多个 PDCP PDU映射到同一 RLC PDU中, 其中所述多个 TOCP PDU中的第一个 PDCP PDU的 PDCP SN被保留, 而其它 PDCP PDU的 PDPC SN被去除。
在本发明的又一方面, 提出了一种数据接收方法, 包括步骤: 判断 RLC PDU 中是否至少包含两个 PDCP PDU; 在判断结果是肯定的情况下, 按照顺序给该 RLC PDU所包括的 PDCP DPU中除第一个 PDCP PDU之外的 PDCP PDU添加 PDCP SN; 以及在 判断结果是否定的情况下, 从 RLC PDU直接恢复相应的 PDCP PDU。
在本发明的又一方面, 提出了一种数据发送设备, 包括: 发送控制单元, 判断 PDCP PDU是否连续; 映射单元, 在 PDCP PDU是连续的情况下, 将多个 PDCP PDU 映射到同一 RLC PDU中, 其中所述多个 PDCP PDU中的第一个 PDCP PDU的 PDCP SN被 保留, 而其它 PDCP PDU的 PDPC SN被去除; 其中, 所述发送控制单元将所述 RLC PDU 报头中的标志位设置为第一预定值, 以表示 PDCP PDU是连续的。
根据一个实施例, 所述映射单元在 PDCP PDU不连续的情况下, 将多个 PDCP PDU映射到同一 RLC PDU中, 其中所述多个 PDCP PDU的 PDCP SN都被保留; 以及所 述发送控制单元将所述 RLC PDU报头中的标志位设置为第二预定值, 以表示 PDCP PDU是不连续的。
在本发明的又一方面, 提出了一种数据接收设备, 包括: 接收控制单元, 判断 RLC PDU的报头中的标志位是否是第一预定值还是第二预定值; 以及逆映射 '单元, 在标志位是第一预定值的情况下, 按照顺序给该 RLC PDU所包括的 PDCP DPU 中除第一个 PDCP PDU之外的 PDCP PDU添加 PDCP SN。
根据一个实施例, 在标志位是第二预定值的情况下, 所述逆映射单元根据 RLC PDU所包含的 PDCP PDU的 PDCP SN来依次恢复各个 PDCP PDU。
在本发明的又一方面, 提出了一种数据发送设备, 包括: 发送控制单元, 判断 PDCP PDU是否连续; 映射单元, 在 PDCP PDU不连续的情况下, 将多个 PDCP PDU 分别映射到各自的 RLC PDU中, 其中所述多个 PDCP PDU的 PDCP SN都被保留; 以及 在 PDCP PDU是连续的情况下, 将多个 PDCP PDU映射到同一 RLC PDU中, 其中所述 多个 PDCP PDU中的第一个 PDCP PDU的 PDCP SN被保留, 而其它 PDCP PDU的 PDPC SN 被去除。
在本发明的又一方面, 提出了一种数据接收设备, 包括: 接收控制单元, 判断 RLC PDU中是否至少包含两个 PDCP PDU; 逆映射单元, 在判断结果是肯定的 情况下, 按照顺序给该 RLC PDU所包括的 PDCP DPU中除第一个 PDCP PDU之外的 PDCP PDU添加 PDCP SN ; 以及在判断结果是否定的情况下, 从 RLC PDU直接恢复相应的 PDCP PDU o
利用本发明的上述结构, 在保证接收侧 PDCP层正确工作的同时, 避免了通 过空中接口传输大量的冗余信息, 节省了无线电资源。 附图说明
. 从下面结合附图的详细描述中, 本发明的上述特征和优点将更明显, 其中: 图 1示出了 PDCP PDU和 RLC PDU之间的映射关系;
图 2示出了根据现有技术的 LTE用户平面的工作过程;
图 3示出了根据本发明实施例的通过 Uu接口的数据发送过程;
图 4示出了根据本发明实施例的通过 Uu接口的数据接收过程;
图 5示出了根据本发明实施例的发送侧的结构示意图; 以及
图 6示出了根据本发明实施例的接收侧的结构示意图。 具体实施方式
下面, 参考附图详细说明本发明的优选实施方式。在附图中, 虽然示于不同 的附图中, 但相同的附图标记用于表示相同的或相似的组件。 为了清楚和简明, 包含在这里的已知的功能和结构的详细描述将被省略, 否则它们将使本发明的主 题不清楚。
图 3示出了根据本发明实施例的通过 Uu接口的数据发送过程。如图 3所示, 如果 PDCP PDU是连续的, 则仅仅将一系列 PDCP PDU中的第一个 PDCP PDU整个 映射到 RLC PDU中 ,而将后续的 PDCP PDU去除 PDCP SN ,也就是将后续的 PDCP SDU 连续地串接在第一个 PDCP SDU的后面, 以形成一个 RLC SDU。
换言之, 当在 PDCP 层的第一串接部分可以构成一个完整的 RLC PDU, 则 RLC PDU仅仅携带第一个 PDCP SN, 而将其余的 PDCP SN去除。
当在 PDCP层的第一串接部分是 RLC PDU的最后一个部分, 则 RLC PDU将携 带第二串接部分的 PDCP SN, 而将后续的 PDCP SN去除。
因此, 在上述情况下, 可以给 RLC PDU的报头中添加一个比特的标志位, 并 且令该标志位为 1 , 这表示 PDCP PDU是连续的。 这样, 在接收端根据标志位的值 就可以判断出采取何种方式来进行逆映射。
但是, 如果 PDCP PDU不是连续的, 则按照现有的方式对其进行处理, 也就 是将所有的 PDCP PDU映射到单个的 RLC PDU, 而不去除任何 PDCP PDU的 SN。 在 这种情况下, 通过将 RLC PDU报头中的标志位设置为 0来向接收侧表明 PDCP SDU 是不连续的。
另外,在 RLC PDU仅仅包含一个 RLC PDU或者其分段的情况下,如果 PDCP SN 被包含在第一段中,也就是 RLC PDU仅仅包含一段,并且该段并不是原始 RLC SDU 的第一分段, 则不需要 PDCP SN。
图 4示出了根据本发明实施例的通过 Uu接口的数据接收过程。如图 4所示, 如果接收到的 RLC PDU包含多于一个的 RLC PDU, 则当在 RLC PDU的报头中检测 到标志位为 1时, 这表示 PDCP PDU是连续的, 由于第一个 RLC SDU的 SN是已知 的, 所以按照顺序依次给第一个 RLC SDU之后的 RLC SDU添加 SN。 但是当检测到 RLC PDU报头中的标志位为 0时,这表示 PDCP PDU不是连续的,并且各个 PDCP PDU 分别携带有自己的 SN, 因而无须添加 SN。
例如, 如果标志位为 1, 接收侧得知 PDCP PDU是连续的。 如图 4所示, 在 RLC PDU被重新组装之后, 按照顺序给除了第一个 RLC SDU之外的每个 RLC SDU 添加 SN。 如果第一个 RLC SDU的 PDCP SN是 n, 则第二个 RLC SDU的 PDCP SN是 n+ 1 , 第三个 RLC SDU 的 PDCP SN是 n + 2, ……。 这样, 所有的 RLC SDU都被 按照顺序被重新形成。
由于在通过空中接口发送的过程中避免了冗余信息的发送,节省了无线电资 源。
以上描述的是在没有进行分段的情况下的操作过程, 下面描述在 RLC PDU 中存在分段的情况下发送侧和接收侧的操作过程。
如果 RLC PDU仅仅包含一个 RLC SDU分段, 并且该分段不是第一段, 则不需 要 PDCP SNc
如果第一串接部分是 RLC SDU的最后一个分段, 则在 RLC PDU中仅仅包含与 第二串接部分相对应的 PDCP SN。
但是, 接收侧可以通过 RLC PDU报头中的分块信息来确定是不是上述这两种 特殊情况。 例如, RLC PDU报头中的分块信息表示 RLC SDU中的分块是一个 PDCP PDU的首块, 也就是该分块中包含了 PDCP SN。 另外, RLC PDU报头中分块信息还 可以表示 RLC SDU中分块是一个 PDCP PDU的最后一个分块。
以上描述的是通过标志位来判断 PDCP PDU是连续的还是不连续的。 但是, 也可以不用标志位来确定 PDCP PDU是连续的还是不连续的。
例如, 如果 RLC PDU仅仅包含一个 RLC SDU或者其分段, 则无须在 RLC PDU 报头中添加该标志位来表示 PDCP PDU是连续的或者是不连续的, 因为在不连续 的情况下, 可以将所有的 RLC SDU分别被映射到不同的 RLC PDU, 并且带有各自 的 PDCP SNo
如果 RLC PDU包含两个或者两个以上的 RLC PDU或者其分段, 接收侧就可以 得知 PDCP PDU必然是连续的, 从而按照顺序给不同的 RLC PDU添加 PDCP SN。
这样, 接收侧能够区分 PDCP PDU是连续的还是不连续的。 在连续的情况下, 不用通过空中接口发送每一个 PDCP PDU 的 PDCP SN, 从而节省了无线电资源。
例如, 如果 PDCP SN占用了 11比特, N个 RLC PDU被映射到了一个 MAC PDU 中, 并且每个 RLC PDU 中串接来 Ni 个 RLC SDU, 则将节省发送的比特数为: ∑ [(Ni - 1) * PDCP SN] =∑ [(N,. — 1) * 11]。 图 5示出了根据本发明实施例的发送侧的结构示意图。如图 5所示,根据本 实施例的发送侧 10包括发送侧控制单元 11和映射单元 12。
一系列 PDCP PDU输入到发送控制单元 11中, 发送控制单元 11判断 RLC PDU 中是否要包含至少两个 RLC SDU。
在 RLC PDU中要包含至少两个完整 RLC SDU的情况下, 如果这些 RLC SDU 是连续的, 则映射单元 12仅仅将要包含在该 RLC PDU中的多个 RLC SDU中第一 个 RLC SDU的 PDCP S 保留下来, 而将后续的 RLC SDU的 PDCP SN去除。 换言之, 映射单元 12将多个 RLC PDU的 PDCP SDU串接起来, 仅仅保留这些 PDCP SDU的 中的第一个 PDCP 的 SN。
但是, 如果第一串接部分是 RLC SDU的最后一段, 则映射单元 12该 RLC PDU 将携带第二串接部分的 PDCP SN, 并且将后续的 PDCP SN去除。
另外, 发送控制单元 11可以将该 RLC PDU的报头中的标志位设置为 1, 以 便告知接收侧 PDCP PDU是连续的。
另一方面, 如果这些 RLC SDU是不连续的, 映射单元 12可以将所有的 PDCP PDU串接在一个 RLC PDU中, 并且不用去除 PDCP SN。 另外, 发送控制单元 11可 以将该 RLC PDU的报头中的标志位设置为 0, 以便告知接收侧 PDCP PDU不是连续 的, 因此没有去除 PDCP SNo
在 RLC PDU仅仅包含一个 RLC SDU或者其分段的情况下, 如上所述, 由于 RLC PDU报头中有分段信息, 因此无须使用 RLC PDU报头的标志位。
同样, 在 PDCP PDU不连续的情况下, 可以将不同的 PDCP SDU分别映射到相 应的 RLC PDU中, 并且具有各自的 PDCP SN。 在这种情况下, 没有必要通过标志 位来向接收侧告知 PDCP PDU是不是连续的。
图 6示出了根据本发明实施例的接收侧的结构示意图。 如图 6所所示, 从 MAC层分解出来的 RLC PDU要被进一步分解成相应逻辑信道的数据分组以便于后 续的处理。根据本发明实施例的接收侧 20包括接收控制单元 21和逆映射单元 22。
接收控制单元 21在接收到来自 MAC层的 RLC PDU后, 首先判断 RLC PDU报 头中的标志位是 1还是 0。
如果标志位是 1 , 这表明 PDCP PDU是连续的, 也就是在 RLC PDU中仅仅包 含了第一个 PDCP PDU的 PDCP SN。 这样, 逆映射单元 22按照顺序给第一个 PDCP PDU之后的 PDCU PDU添加 PDCP SN。
如果标志位是 0, 这表明 PDCP PDU不是连续的, 也就是在 RLC PDU中包含 的各个 PDCP PDU和相应的 PDCP SN。 因此, 无需添加 PDCP SN。
以上说明的是, 在 PDCP PDU不连续并且允许将多个 PDCP PDU映射到同一个 RLC PDU中的情况。但是,如果在 PDCP PDU不连续的情况下仅仅允许各个 PDCP PDU 以一一对应的方式映射到相应的 RLC PDU中, 而不允许将多个 PDCP PDU映射到 同一个 RLC PDU中, 则没有必要利用标志位。 这是因为一旦接收控制单元 21得 知 RLC PDU中包含了多于一个 PDCP PDU, 就表明 PDCP PDU是连续的, 需要添加 相应的 PDCP SNo
如上所述, 接收侧能够区分 PDCP PDU是连续的还是不连续的。 在连续的情 况下, 不用通过空中接口发送每一个 PDCP PDU 的 PDCP SN, 从而节省了无线电 资源。
上面的描述仅用于实现本发明的实施方式, 本领域的技术人员应该理解, 在 不脱离本发明的范围的任何修改或局部替换,均应该属于本发明的权利要求来限 定的范围, 因此, 本发明的保护范围应该以权利要求书的保护范围为准。

Claims

权利要求
1、 一种数据发送方法, 包括步骤:
判断 PDCP PDU是否连续;
在 PDCP PDU是连续的情况下, 将多个 PDCP PDU映射到同一 RLC PDU中, 其中 所述多个 PDCP PDU中的第一个 PDCP PDU的 PDCP SN被保留, 而其它 PDCP PDU的 PDPC SN被去除; 以及
将所述 RLC PDU报头中的标志位设置为第一预定值, 以表示 PDCP PDU是连续 的。
2、 如权利要求 1所述的方法, 还包括步骤:
在 PDCP PDU不连续的情况下, 将多个 PDCP PDU映射到同一 RLC SDU中, 其中 所述多个 PDCP PDU的 PDCP SN都被保留;
将所述 RLC PDU报头中的标志位设置为第二预定值, 以表示 PDCP PDU是不连 续的。
3、 如权利要求 2所述的方法, 其中, 如果要将一个 PDCP PDU的最后部分映 射到 RLC PDU , 则在该 RLC PDU中保留该 PDCP PDU之后一个 PDCP PDU的 PDCP SN , 而将之后的 PDCP SN去除。
4、 如权利要求 1所述的方法, 其中, 如果 RLC PDU仅仅包含 PDCP PDU的一段, 并且该段并不是该 PDCP PDU的第一分段, 则该 RLC PDU中不包括该 PDCP PDU的 PDCP SN。
5、 一种数据接收方法, 包括步骤- 判断 RLC PDU的报头中的标志位是否是第一预定值还是第二预定值; 在标志位是第一预定值的情况下, 按照顺序给该 RLC PDU所包括的 PDCP DPU 中除第一个 PDCP PDU之外的 PDCP PDU添加 PDCP SN。
6、 如权利要求 5所述的方法, 还包括步骤:
在标志位是第二预定值的情况下, 根据 RLC PDU所包含的 PDCP PDU的 PDCP SN 来依次恢复各个 PDCP PDU。
7、 一种数据发送方法, 包括步骤:
判断 PDCP PDU是否连续;
在 PDCP PDU不连续的情况下, 将多个 PDCP PDU分别映射到各自的 RLC PDU中, 其中所述多个 PDCP PDU的 PDCP SN都被保留; 以及
在 PDCP PDU是连续的情况下, 将多个 PDCP PDU映射到同一 RLC PDU中, 其中 所述多个 PDCP PDU中的第一个 PDCP PDU的 PDCP SN被保留, 而其它 PDCP PDU的 PDPC SN被去除。
8、 一种数据接收方法, 包括步骤- 判断 RLC PDU中是否至少包含两个 PDCP PDU;
在判断结果是肯定的情况下, 按照顺序给该 RLC PDU所包括的 PDCP DPU中除 第一个 PDCP PDU之外的 PDCP PDU添加 PDCP SN; 以及
在判断结果是否定的情况下, 从 RLC PDU直接恢复相应的 PDCP PDU。
9、 一种数据发送设备, 包括:
发送控制单元, 判断 PDCP PDU是否连续;
映射单元, 在 PDCP PDU是连续的情况下, 将多个 PDCP PDU映射到同一 RLC PDU 中,其中所述多个 PDCP PDU中的第一个 PDCP PDU的 PDCP SN被保留,而其它 PDCP PDU 的 PDPC SN被去除;
其中,所述发送控制单元将所述 RLC PDU报头中的标志位设置为第一预定值, 以表示 PDCP PDU是连续的。
10、 如权利要求 9所述的设备, 其中, 所述映射单元在 PDCP PDU不连续的情 况下, 将多个 PDCP PDU映射到同一 RLC PDU中, 其中所述多个 PDCP PDU的 PDCP SN 都被保留; 以及所述发送控制单元将所述 RLC PDU报头中的标志位设置为第二预 定值, 以表示 PDCP PDU是不连续的。
11、 如权利要求 9所述的设备, 其中, 如果要将一个 PDCP PDU的最后部分映 射到 RLC PDU, 则在该 RLC PDU中保留该 PDCP PDU之后一个 PDCP PDU的 PDCP SN, 而将之后的 PDCP SN去除。
12、 如权利要求 9述的设备, 其中, 如果 RLC PDU仅仅包含 PDCP PDU的一段, 并且该段并不是该 PDCP PDU的第一分段, 则该 RLC PDU中不包括该 PDCP PDU的 PDCP S c
13、 一种数据接收设备, 包括- 接收控制单元, 判断 RLC PDU的报头中的标志位是否是第一预定值还是第二 预定值; 以及
逆映射单元, 在标志位是第一预定值的情况下, 按照顺序给该 RLC PDU所包 括的 PDCP DPU中除第一个 PDCP PDU之外的 PDCP PDU添加 PDCP SN。
14、 如权利要求 13所述的设备, 其中, 在标志位是第二预定值的情况下, 所述逆映射单元根据 RLC PDU所包含的 PDCP PDU的 PDCP SN来依次恢复各个 PDCP PDU。
15、 一种数据发送设备, 包括:
发送控制单元, 判断 PDCP PDU是否连续;
映射单元, 在 PDCP PDU不连续的情况下, 将多个 PDCP PDU分别映射到各自 的 RLC PDU中, 其中所述多个 PDCP PDU的 PDCP SN都被保留; 以及在 PDCP PDU是连 续的情况下, 将多个 PDCP PDU映射到同一 RLC PDU中, 其中所述多个 PDCP PDU中 的第一个 PDCP PDU的 PDCP SN被保留, 而其它 PDCP PDU的 PDPC SN被去除。
16、 一种数据接收设备, 包括- 接收控制单元, 判断 RLC PDU中是否至少包含两个 PDCP PDU ;
逆映射单元, 在判断结果是肯定的情况下, 按照顺序给该 RLC PDU所包括的 PDCP PDU中除第一个 PDCP PDU之外的 PDCP PDU添加 PDCP SN; 以及在判断结果是否定的 情况下, 从 RLC PDU直接恢复相应的 PDCP PDU。
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012514952A (ja) * 2009-01-07 2012-06-28 クゥアルコム・インコーポレイテッド 無線通信において受信されるパケットのアンバンドリング
US8638699B2 (en) 2008-11-10 2014-01-28 Qualcomm Incorporated Method and apparatus for supporting the large service data unit (SDU)
US8711881B2 (en) 2009-01-07 2014-04-29 Qualcomm Incorporated Packet bundling at the PDCP layer
WO2020093915A1 (en) * 2018-11-06 2020-05-14 Qualcomm Incorporated Managing packet data convergence protocol (pdcp) protocol data units

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US9055392B2 (en) * 2010-08-03 2015-06-09 Samsung Electronics Co., Ltd. Method and apparatus of communicating packet data units in a wireless network environment and system using thereof
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WO2015180066A1 (zh) * 2014-05-28 2015-12-03 华为技术有限公司 一种无线链路控制传输方法及设备
CN104853388B (zh) * 2015-04-02 2019-02-12 四川大学 一种集群通信系统中群组数据包序列号的生成方法和基站
CN107147594B (zh) * 2016-03-01 2020-06-09 深圳市中兴微电子技术有限公司 一种数据包处理方法和装置
WO2017164603A1 (en) * 2016-03-25 2017-09-28 Lg Electronics Inc. Method and device for transmitting data unit, and method and device for receiving data unit
US9986456B2 (en) * 2016-06-03 2018-05-29 Futurewei Technologies, Inc. System and method for data forwarding in a communications system
CN107920372B (zh) * 2016-10-10 2020-02-07 电信科学技术研究院 一种信息指示方法及装置
WO2018082760A1 (en) * 2016-11-01 2018-05-11 Nokia Technologies Oy Reducing overhead by omitting header fields
CN108234550B (zh) 2016-12-14 2020-06-12 中国移动通信有限公司研究院 一种信息发送方法、信息接收方法及pdcp实体
WO2018138410A1 (en) 2017-01-24 2018-08-02 Nokia Technologies Oy Sequence numbering on demand for segmentation
CN108632899B (zh) * 2017-03-17 2020-09-29 华为技术有限公司 一种数据传输方法、数据发送设备及数据接收设备
CN108632326B (zh) * 2017-03-24 2020-10-30 电信科学技术研究院 一种协议数据单元传输数据的方法及装置
CN108668320B (zh) 2017-03-31 2020-11-03 维沃移动通信有限公司 一种分段组包方法及接收端
EP3493586B1 (en) * 2017-05-19 2020-08-26 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Method and device for data reception and processing of radio link control layer
CN111148235B (zh) * 2018-11-02 2022-06-28 华为技术有限公司 一种通信方法及装置
WO2021203317A1 (en) * 2020-04-08 2021-10-14 Nec Corporation Methods, devices and computer readable media for communications
WO2022073460A1 (en) * 2020-10-06 2022-04-14 Mediatek Singapore Pte. Ltd. Pdu rate reduction in mobile communications

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1228221A (zh) * 1997-05-13 1999-09-08 松下电器产业株式会社 分组传输装置
CN1437368A (zh) * 2002-02-08 2003-08-20 华硕电脑股份有限公司 数据传输的确认方法
US20030165161A1 (en) * 2000-08-14 2003-09-04 Nokia Corporation Synchronization of data packet numbers in packet-switched data transmission
CN1913534A (zh) * 2006-08-17 2007-02-14 华为技术有限公司 一种数据处理方法及通信设备

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2822452B1 (fr) * 2001-03-22 2003-08-15 Valois Sa Distributeur de produit fluide
EP1361706B1 (en) * 2002-05-10 2007-03-14 Innovative Sonic Limited Method for determining triggering of a pdcp sequence number synchronization prodecure
CN100391201C (zh) * 2005-02-28 2008-05-28 华为技术有限公司 一种保持分组数据协议汇聚子层序列号同步的方法
US20070291788A1 (en) * 2006-06-15 2007-12-20 Interdigital Technology Corporation Method and apparatus for reducing transmission overhead
TW200803569A (en) * 2006-06-19 2008-01-01 Innovative Sonic Ltd Method and apparatus for handling downlink data upon handover in a wireless communications
US20080310452A1 (en) * 2007-06-14 2008-12-18 Texas Instruments Incorporated Data link layer headers

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1228221A (zh) * 1997-05-13 1999-09-08 松下电器产业株式会社 分组传输装置
US20030165161A1 (en) * 2000-08-14 2003-09-04 Nokia Corporation Synchronization of data packet numbers in packet-switched data transmission
CN1437368A (zh) * 2002-02-08 2003-08-20 华硕电脑股份有限公司 数据传输的确认方法
CN1913534A (zh) * 2006-08-17 2007-02-14 华为技术有限公司 一种数据处理方法及通信设备

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP2169915A4 *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8638699B2 (en) 2008-11-10 2014-01-28 Qualcomm Incorporated Method and apparatus for supporting the large service data unit (SDU)
US9326191B2 (en) 2008-11-10 2016-04-26 Qualcomm Incorporated Method and apparatus for supporting the large service data unit (SDU)
JP2012514952A (ja) * 2009-01-07 2012-06-28 クゥアルコム・インコーポレイテッド 無線通信において受信されるパケットのアンバンドリング
US8644338B2 (en) 2009-01-07 2014-02-04 Qualcomm Incorporated Unbundling packets received in wireless communications
US8711881B2 (en) 2009-01-07 2014-04-29 Qualcomm Incorporated Packet bundling at the PDCP layer
WO2020093915A1 (en) * 2018-11-06 2020-05-14 Qualcomm Incorporated Managing packet data convergence protocol (pdcp) protocol data units

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EP2169915A1 (en) 2010-03-31
CN101330492A (zh) 2008-12-24
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US8614948B2 (en) 2013-12-24
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