CN103634893B - PDCP sequence number synchronization method and device - Google Patents
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Abstract
The present invention provides a kind of PDCP sequence number synchronization method and device, belongs to moving communicating field。Wherein, this PDCP PDCP sequence number synchronization method, being applied in lossless service RNS SRNS repositioning process, described PDCP sequence number synchronization method includes: the first equipment receives the protocol Data Unit PDU serial number to be received that the second equipment of opposite end sends；Described first equipment revises the PUD serial number to be sent self preserved to carry out PDCP sequence number synchronization according to described PDU serial number to be received。Technical scheme can realize rapid serial number in lossless SRNS repositioning process and synchronize, and improves data transmission efficiency。
Description
Technical field
The present invention relates to moving communicating field, particularly relate to a kind of PDCP sequence number synchronization method and device and。
Background technology
Lossless SRNS re-positioning technology is mainly used in SRNS(ServingRadioNetworkSubsystem, SRNS Serving Radio Network Subsystem) ensure the Lossless transport of data when switching。In lossless repositioning process, UE (UserEquipment, subscriber equipment) expectation is received descending PDCP(PacketDataConvergenceProtocol, PDCP) serial number be sent to UTRAN entity (UMTSTerrestrialRadioAccessNetwork, UMTS Terrestrial radio access network), the up PDCP serial number that expectation receives is sent to UE by same UTRAN entity。UE sends, by same for the serial number N of the expectation uplink receiving PDCP received, the PDU(ProtocolDataUnit preserved in buffer memory window, protocol Data Unit) serial number compare, if N is be more than or equal to sending SN(serialnumber minimum in buffer memory window, serial number) and less than or equal to maximum sequence number+1, then it is made without the synchronization of upstream sequence number, otherwise needs to carry out upstream sequence synchronizing process。The serial number N of the expectation downlink reception PDCP that UTRAN entity will receive is with sending the PDU(ProtocolDataUnit preserved in buffer memory window) serial number compare, if N is be more than or equal to minimum SN in transmission buffer memory window and less than or equal to maximum sequence number+1, then it is made without the synchronization of descending serial number, otherwise needs to carry out descending sequence number synchronization process。
The synchronizing process of upstream sequence number, first PDU in transmission buffer memory window is packaged into serial number PDU and is sent to RLC entity (RadioLinkControl, wireless chain control layer agreement) by UE, waits that the transmission of RLC entity successfully confirms。New PDU was not retransmited before RLC entity confirms to send successfully。After serial number PDU is successfully sent to peer layer, uplink synchronous process completes, and hereafter can continue to send the PDCP up PDU sending buffer memory in buffering window and the upstream data newly received。The synchronizing process of descending serial number is similar with the synchronizing process of upstream sequence number, and difference is that this process is initiated by UTRAN entity。
By above description it can be seen that in sequence number synchronization process the data of PDCP send to be in and stop waiting state (not retransmiting new data before serial number PDU sends successfully) and now do not play the transmission sliding window function of PDCP, data transmission rate is lowered。
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of PDCP sequence number synchronization method and device, it is possible to realizes rapid serial number in lossless SRNS repositioning process and synchronizes, improves data transmission efficiency。
For solving above-mentioned technical problem, embodiments of the invention provide technical scheme as follows:
On the one hand, it is provided that a kind of PDCP PDCP sequence number synchronization method, being applied in lossless service RNS SRNS repositioning process, described PDCP sequence number synchronization method includes:
First equipment receives the protocol Data Unit PDU serial number to be received that the second equipment of opposite end sends；
Described first equipment revises the PUD serial number to be sent self preserved to carry out PDCP sequence number synchronization according to described PDU serial number to be received。
Further, described first equipment revises the PUD serial number to be sent self preserved also to include before carrying out PDCP sequence number synchronization according to described PDU serial number to be received:
Described PDU serial number to be received is compared by described first equipment with the serial number of PDU in the PUD serial number to be sent self preserved and transmission buffering window, judge that described PDU serial number to be received is inconsistent with the PDU serial number to be sent that self preserves, and all inconsistent with the serial number of all PDU sent in buffering window。
Further, the PDU serial number to be received of the second equipment transmission that described first equipment receives opposite end includes:
User equipment (UE) receives the to be received up PDU serial number UL_Receive_SN that UMTS land radio access web UTRAN entity sends；
The PUD serial number to be sent that described first equipment self preserves according to the amendment of described PDU serial number to be received includes to carry out PDCP sequence number synchronization:
The value of the to be sent up PDU serial number UL_Send_SN that self is preserved by described UE is revised as consistent with the value of described UL_Receive_SN, and is revised as consistent with the value of described UL_Send_SN by the serial number of the initial PDU sent in buffering window。
Further, described first equipment revises the PUD serial number to be sent self preserved also to include after carrying out PDCP sequence number synchronization according to described PDU serial number to be received:
The up PDU sent in buffering window is sent to wireless chain control layer RLC entity by described UE, and adds 1 by the value of UL_Send_SN after often sending a PDU。
Further, the protocol Data Unit PDU serial number to be received of the second equipment transmission that described first equipment receives opposite end includes:
Described UTRAN entity receives the UE to be received descending PDU serial number DL_Receive_SN sent；
The PUD serial number to be sent that described first equipment self preserves according to the amendment of described PDU serial number to be received includes to carry out PDCP sequence number synchronization:
The value of the to be sent descending PDU serial number DL_Send_SN that self is preserved by described UTRAN entity is revised as consistent with the value of described DL_Receive_SN, and is revised as consistent with the value of described DL_Send_SN by the serial number of the initial PDU sent in buffering window。
Further, described first equipment revises the PUD serial number to be sent self preserved also to include after carrying out PDCP sequence number synchronization according to described PDU serial number to be received:
The descending PDU sent in buffering window is sent to RLC entity by described UTRAN entity, and adds 1 by the value of DL_Send_SN after often sending a PDU。
The embodiment of the present invention additionally provides a kind of PDCP PDCP sequence number synchronization device, is applied in lossless service RNS SRNS repositioning process, and described PDCP sequence number synchronization device includes:
Receiver module, the protocol Data Unit PDU serial number to be received that the second equipment for receiving opposite end sends；
Processing module, for revising the PUD serial number to be sent self preserved to carry out PDCP sequence number synchronization according to described PDU serial number to be received。
Further, described device also includes:
Judge module, for described PDU serial number to be received is compared with the serial number of PDU in the PUD serial number to be sent self preserved and transmission buffering window, judge that described PDU serial number to be received is inconsistent with the PDU serial number to be sent that self preserves, and all inconsistent with the serial number of all PDU sent in buffering window。
Further, described receiver module is specifically for receiving the to be received up PDU serial number UL_Receive_SN that UTRAN entity sends；
The value of the described processing module to be sent up PDU serial number UL_Send_SN specifically for self being preserved is revised as consistent with the value of described UL_Receive_SN, and is revised as consistent with the value of described UL_Send_SN by the serial number of the initial PDU sent in buffering window。
Further, described receiver module is specifically for receiving the UE to be received descending PDU serial number DL_Receive_SN sent；
The value of the described processing module to be sent descending PDU serial number DL_Send_SN specifically for self being preserved is revised as consistent with the value of described DL_Receive_SN, and is revised as consistent with the value of described DL_Send_SN by the serial number of the initial PDU sent in buffering window。
Embodiments of the invention have the advantages that
In such scheme, the first equipment revises the PDU serial number to be sent self preserved according to the PDU serial number to be received received from the second equipment of opposite end, thus realizing sequence number synchronization that is unavailable due to serial number after lossless SRNS reorientation and that carry out。Technical scheme decreases and makes serial number PDU, in order to whether supervisory sequence PDU sends successfully opening timing device, transmit Sequence Number and PDU process stop etc. operation, it is possible to realize the Fast synchronization of PDCP serial number, improve data transmission rate。
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of the PDCP sequence number synchronization method of the embodiment of the present invention；
Fig. 2 is the structured flowchart of the PDCP sequence number synchronization device of the embodiment of the present invention。
Detailed description of the invention
For making embodiments of the invention solve the technical problem that, technical scheme and advantage clearly, be described in detail below in conjunction with the accompanying drawings and the specific embodiments。
Embodiments of the invention in prior art in sequence number synchronization process the data of PDCP send to be in and stop waiting state (not retransmiting new data before serial number PDU sends successfully) and now do not play the transmission sliding window function of PDCP, the problem that data transmission rate is lowered, a kind of PDCP sequence number synchronization method and device are provided, rapid serial number can be realized in lossless SRNS repositioning process synchronize, improve data transmission efficiency。
Fig. 1 is the schematic flow sheet of the PDCP sequence number synchronization method of the embodiment of the present invention, as it is shown in figure 1, the present embodiment includes:
Step 101: the first equipment receives the PDU serial number to be received that the second equipment of opposite end sends；
Step 102: the first equipment revises the PUD serial number to be sent self preserved to carry out PDCP sequence number synchronization according to PDU serial number to be received。
In such scheme, the first equipment revises the PDU serial number to be sent self preserved according to the PDU serial number to be received received from the second equipment of opposite end, thus realizing sequence number synchronization that is unavailable due to serial number after lossless SRNS reorientation and that carry out。Technical scheme decreases and makes serial number PDU, in order to whether supervisory sequence PDU sends successfully opening timing device, transmit Sequence Number and PDU process stop etc. operation, it is possible to realize the Fast synchronization of PDCP serial number, improve data transmission rate。
Further, the first equipment revises the PUD serial number to be sent self preserved also to include before carrying out PDCP sequence number synchronization according to PDU serial number to be received:
PDU serial number to be received is compared by the first equipment with the serial number of PDU in the PUD serial number to be sent self preserved and transmission buffering window, judge that PDU serial number to be received is inconsistent with the PDU serial number to be sent that self preserves, and all inconsistent with the serial number of all PDU sent in buffering window。
Further, the PDU serial number to be received of the second equipment transmission that the first equipment receives opposite end includes:
User equipment (UE) receives the to be received up PDU serial number UL_Receive_SN that UMTS land radio access web UTRAN entity sends；
The PUD serial number to be sent that first equipment self preserves according to PDU serial number to be received amendment includes to carry out PDCP sequence number synchronization:
The value of the to be sent up PDU serial number UL_Send_SN that self is preserved by UE is revised as consistent with the value of UL_Receive_SN, and is revised as consistent with the value of UL_Send_SN by the serial number of the initial PDU sent in buffering window。
Further, the first equipment revises the PUD serial number to be sent self preserved also to include after carrying out PDCP sequence number synchronization according to PDU serial number to be received:
The up PDU sent in buffering window is sent to wireless chain control layer RLC entity by UE, and adds 1 by the value of UL_Send_SN after often sending a PDU。
Further, the protocol Data Unit PDU serial number to be received of the second equipment transmission that the first equipment receives opposite end includes:
UTRAN entity receives the UE to be received descending PDU serial number DL_Receive_SN sent；
The PUD serial number to be sent that first equipment self preserves according to PDU serial number to be received amendment includes to carry out PDCP sequence number synchronization:
The value of the to be sent descending PDU serial number DL_Send_SN that self is preserved by UTRAN entity is revised as consistent with the value of DL_Receive_SN, and is revised as consistent with the value of DL_Send_SN by the serial number of the initial PDU sent in buffering window。
Further, the first equipment revises the PUD serial number to be sent self preserved also to include after carrying out PDCP sequence number synchronization according to PDU serial number to be received:
The descending PDU sent in buffering window is sent to RLC entity by UTRAN entity, and adds 1 by the value of DL_Send_SN after often sending a PDU。
Fig. 2 is the structured flowchart of the PDCP sequence number synchronization device of the embodiment of the present invention, as in figure 2 it is shown, the present embodiment includes:
Receiver module 20, the PDU serial number to be received that the second equipment for receiving opposite end sends；
Processing module 21, for revising the PUD serial number to be sent self preserved to carry out PDCP sequence number synchronization according to PDU serial number to be received。
Further, this device also includes:
Judge module, for PDU serial number to be received is compared with the serial number of PDU in the PUD serial number to be sent self preserved and transmission buffering window, judge that PDU serial number to be received is inconsistent with the PDU serial number to be sent that self preserves, and all inconsistent with the serial number of all PDU sent in buffering window。
Further, the device of the present embodiment can apply in UE,
Receiver module 20 is specifically for receiving the to be received up PDU serial number UL_Receive_SN that UTRAN entity sends；
The value of the processing module 21 to be sent up PDU serial number UL_Send_SN specifically for self being preserved is revised as consistent with the value of UL_Receive_SN, and is revised as consistent with the value of UL_Send_SN by the serial number of the initial PDU sent in buffering window。
Further, the device of the present embodiment can apply in UTRAN entity,
Receiver module 20 is specifically for receiving the UE to be received descending PDU serial number DL_Receive_SN sent；
The value of the processing module 21 to be sent descending PDU serial number DL_Send_SN specifically for self being preserved is revised as consistent with the value of DL_Receive_SN, and is revised as consistent with the value of DL_Send_SN by the serial number of the initial PDU sent in buffering window。
It should be understood that this device embodiment is the device corresponding with the embodiment of the method shown in above-mentioned Fig. 1, in said method embodiment, all realization rate are all suitable in the embodiment of this device, also can reach identical technique effect。
At present, PDCP is supported lossless reorientation by upper-layer configured, UE needs the maintenance parameters DL_Receive_SN(record descending PDU serial number that receives of the next one) and the up PDU serial number to send of the UL_Send_SN(record next one), corresponding is that UTRAN entity needs to safeguard the descending PDU serial number that the DL_Send_SN(record next one to send) and UL_Receive_SN(record the next up PDU serial number that will receive)。Equally, UE and UTRAN entity also to safeguard the transmission buffer memory window of local terminal, has sent but without the PDU being confirmed to preserve。
In prior art, in lossless SRNS repositioning process, DL_Receive_SN is sent to UTRAN entity by UE, and UL_Receive_SN is sent to UE by UTRAN entity；UL_Receive_SN that UE receives is if equal to self UL_Send_SN or can synchronize with being made without upstream sequence number equal to sending the serial number then serial number of some PDU in buffer memory window, otherwise then need to carry out upstream sequence synchronizing process: UE is fabricated to SN_PDU(serial number PDU by sending the PDU of first (sending the earliest) not confirmed in buffering window) it is sent to RLC entity, and open supervision timer, suspend the transmission of new data, wait the confirmation message of RLC entity；If the data receiving RLC entity abandon instruction or supervision timer time-out but without receiving abandoning or confirming message of RLC entity, then again send SN_PDU to RLC entity。If have received the confirmation message of RLC entity, then stopping supervision timer, synchronizing process terminates, and is abandoned by first PDU sent in buffering window, continues to send other PDU in buffer memory window, and this period, UL_Send_SN remained unchanged；After data in buffer memory window have sent, proceeding the transmission of other upstream data, after hereafter often sending PDU to the RLC entity that a bag is new, UL_Send_SN will add 1。
In prior art, in sequence number synchronization process, the data of PDCP send and are in stopping waiting state, do not retransmit new data, now do not play the transmission sliding window function of PDCP before serial number PDU sends successfully, and data transmission rate is lowered。
PDCP sequence number synchronization method provided by the invention can quickly realize sequence number synchronization under the lossless SRNS unavailable situation of reorientation serial number, synchronizing process is not stopped wait operation, the buffering window that sends making full use of PDCP realizes the quick transmission of data, need not make whether serial number PDU and supervisory sequence PDU is successfully sent to peer layer, simplify synchronizing process。Below in conjunction with specific embodiment, the PDCP sequence number synchronization method of the present invention is further detailed:
Embodiment one:
The technical scheme of the present embodiment is capable of in lossless SRNS repositioning process, and the synchronization of upstream sequence number specifically includes following steps:
Step a1: in lossless SRNS repositioning process, UE receive UTRAN entity and send the UL_Receive_SN of coming, and enter step a2；
PDU serial number in the UL_Receive_SN received and the UL_Send_SN of self and transmission buffering window is made comparisons by step a2:UE, if the UL_Receive_SN that UE receives is equal to the UL_Send_SN of self or equal to self sending the serial number of some PDU in buffer memory window, serial number can be used, it is made without upstream sequence number to synchronize, otherwise need to carry out upstream sequence number to synchronize, enter step a3；
The value of UL_Receive_SN is assigned to UL_Send_SN by step a3:UE, the PDU serial number of first not confirmed sent in buffer memory window is revised as UL_Send_SN, the serial number of the PDU of other not confirmeds is all incremented by successively based on UL_Send_SN, enters step a4 afterwards；
PDU in transmission buffering window is resend to RLC entity by step a4: upstream sequence synchronizing process terminates, UE, and adds 1 by the value of UL_Send_SN after often sending a PDU。
In the present embodiment, UE revises the up PDU serial number of self according to the up PDU serial number received from UTRAN entity, thus realizing UE and sequence number synchronization of carrying out unavailable due to serial number after lossless SRNS reorientation。This embodiment reduces and make serial number PDU, in order to whether supervisory sequence PDU sends successfully opening timing device, transmit Sequence Number and PDU process stop etc. operation, it is possible to realize the Fast synchronization of PDCP serial number, improve data transmission rate。
Embodiment two:
The technical scheme of the present embodiment is capable of in lossless SRNS repositioning process, and the synchronization of descending serial number specifically includes following steps:
Step b1: in lossless SRNS repositioning process, UTRAN entity receives UE and sends the DL_Receive_SN of coming, and enters step b2；
PDU serial number in the DL_Receive_SN received and the DL_Send_SN of self and transmission buffering window is made comparisons by step b2:UTRAN entity, if the DL_Receive_SN that UTRAN entity receives is equal to the DL_Send_SN of self or equal to self sending the serial number of some PDU in buffer memory window, serial number can be used, it is made without descending sequence number synchronization, otherwise need to carry out descending sequence number synchronization, enter step b3；
The value of DL_Receive_SN is assigned to DL_Send_SN by step b3:UTRAN entity, the PDU serial number of first not confirmed sent in buffer memory window is revised as DL_Send_SN, the serial number of the PDU of other not confirmeds is all incremented by successively based on DL_Send_SN, enters step b4 afterwards；
Step b4: descending sequence number synchronization process terminates, PDU in transmission buffering window is resend to RLC entity by UTRAN entity, and adds 1 by the value of DL_Send_SN after often sending a PDU。
In the present embodiment, UTRAN entity revises the descending PDU serial number of self according to the descending PDU serial number received from UE, thus realizing UTRAN entity and sequence number synchronization of carrying out unavailable due to serial number after lossless SRNS reorientation。Technical scheme decreases and makes serial number PDU, in order to whether supervisory sequence PDU sends successfully opening timing device, transmit Sequence Number and PDU process stop etc. operation, it is possible to realize the Fast synchronization of PDCP serial number, improve data transmission rate。
These many functional parts described in this description are all referred to as module, in order to specifically emphasize the independence of its implementation。
In the embodiment of the present invention, module can realize with software, in order to is performed by various types of processors。For example, the executable code module of a mark can include one or more physics or the logical block of computer instruction, for example, it can be built as object, process or function。While it is true, the executable code of identified module need not be physically located together, but in can including being stored in not coordination on different instructions, when combining in these command logics, it constitutes module and realizes the regulation purpose of this module。
It practice, executable code module can be individual instructions or many bar instructions, and even can be distributed on multiple different code segment, be distributed in the middle of distinct program, and cross over the distribution of multiple memory devices。Similarly, operation data can be identified in module, and can realize according to any suitable form and be organized in the data structure of any suitable type。Described operation data can be collected as individual data collection, or can be distributed on diverse location (to include in different storage device), and can be only used as electronic signal at least in part and be present on system or network。
When module can utilize software to realize, consider the level of existing hardware technique, so module that can be implemented in software, when being left out cost, those skilled in the art can build the hardware circuit of correspondence and realize corresponding function, and described hardware circuit includes ultra-large integrated (VLSI) circuit of routine or the existing quasiconductor of gate array and such as logic chip, transistor etc or other discrete element。Module can also use programmable hardware device, and such as field programmable gate array, programmable logic array, programmable logic device etc. realize。
In each embodiment of the method for the present invention; the sequence number of described each step can not be used for limiting the sequencing of each step; for those of ordinary skill in the art, under the premise not paying creative work, the priority of each step is changed also within protection scope of the present invention。
The above is the preferred embodiment of the present invention; it should be pointed out that, for those skilled in the art, under the premise without departing from principle of the present invention; can also making some improvements and modifications, these improvements and modifications also should be regarded as protection scope of the present invention。
Claims (8)
1. a PDCP PDCP sequence number synchronization method, is applied in lossless service RNS SRNS repositioning process, it is characterised in that described PDCP sequence number synchronization method includes:
First equipment receives the protocol Data Unit PDU serial number to be received that the second equipment of opposite end sends；
Described first equipment revises the PDU serial number to be sent self preserved to carry out PDCP sequence number synchronization according to described PDU serial number to be received；
Described first equipment revises the PDU serial number to be sent self preserved also to include before carrying out PDCP sequence number synchronization according to described PDU serial number to be received:
Described PDU serial number to be received is compared by described first equipment with the serial number of PDU in the PDU serial number to be sent self preserved and transmission buffering window, judge that described PDU serial number to be received is inconsistent with the PDU serial number to be sent that self preserves, and all inconsistent with the serial number of all PDU sent in buffering window；
The PDU serial number to be sent that described first equipment self preserves according to the amendment of described PDU serial number to be received includes to carry out PDCP sequence number synchronization:
The value of the PDU serial number to be sent that self is preserved by described first equipment is revised as consistent with the value of described PDU serial number to be received, and is revised as consistent with the value of described PDU serial number to be sent by the serial number of the initial PDU sent in buffering window。
2. PDCP sequence number synchronization method according to claim 1, it is characterised in that the PDU serial number to be received of the second equipment transmission that described first equipment receives opposite end includes:
User equipment (UE) receives the to be received up PDU serial number UL_Receive_SN that UMTS land radio access web UTRAN entity sends；
The PDU serial number to be sent that described first equipment self preserves according to the amendment of described PDU serial number to be received includes to carry out PDCP sequence number synchronization:
The value of the to be sent up PDU serial number UL_Send_SN that self is preserved by described UE is revised as consistent with the value of described UL_Receive_SN, and is revised as consistent with the value of described UL_Send_SN by the serial number of the initial PDU sent in buffering window。
3. PDCP sequence number synchronization method according to claim 2, it is characterised in that described first equipment revises the PDU serial number to be sent self preserved also to include after carrying out PDCP sequence number synchronization according to described PDU serial number to be received:
The up PDU sent in buffering window is sent to wireless chain control layer RLC entity by described UE, and adds 1 by the value of UL_Send_SN after often sending a PDU。
4. PDCP sequence number synchronization method according to claim 2, it is characterised in that the protocol Data Unit PDU serial number to be received of the second equipment transmission that described first equipment receives opposite end includes:
Described UTRAN entity receives the UE to be received descending PDU serial number DL_Receive_SN sent；
The PDU serial number to be sent that described first equipment self preserves according to the amendment of described PDU serial number to be received includes to carry out PDCP sequence number synchronization:
The value of the to be sent descending PDU serial number DL_Send_SN that self is preserved by described UTRAN entity is revised as consistent with the value of described DL_Receive_SN, and is revised as consistent with the value of described DL_Send_SN by the serial number of the initial PDU sent in buffering window。
5. PDCP sequence number synchronization method according to claim 4, it is characterised in that described first equipment revises the PDU serial number to be sent self preserved also to include after carrying out PDCP sequence number synchronization according to described PDU serial number to be received:
The descending PDU sent in buffering window is sent to RLC entity by described UTRAN entity, and adds 1 by the value of DL_Send_SN after often sending a PDU。
6. a PDCP PDCP sequence number synchronization device, is applied in lossless service RNS SRNS repositioning process, it is characterised in that described PDCP sequence number synchronization device includes:
Receiver module, the protocol Data Unit PDU serial number to be received that the second equipment for receiving opposite end sends；
Processing module, for revising the PDU serial number to be sent self preserved to carry out PDCP sequence number synchronization according to described PDU serial number to be received；
Described device also includes:
Judge module, for described PDU serial number to be received is compared with the serial number of PDU in the PDU serial number to be sent self preserved and transmission buffering window, judge that described PDU serial number to be received is inconsistent with the PDU serial number to be sent that self preserves, and all inconsistent with the serial number of all PDU sent in buffering window；
The value of the described processing module PDU serial number to be sent specifically for self being preserved is revised as consistent with the value of described PDU serial number to be received, and is revised as consistent with the value of described PDU serial number to be sent by the serial number of the initial PDU sent in buffering window。
7. PDCP sequence number synchronization device according to claim 6, it is characterised in that
Described receiver module is specifically for receiving the to be received up PDU serial number UL_Receive_SN that UTRAN entity sends；
The value of the described processing module to be sent up PDU serial number UL_Send_SN specifically for self being preserved is revised as consistent with the value of described UL_Receive_SN, and is revised as consistent with the value of described UL_Send_SN by the serial number of the initial PDU sent in buffering window。
8. PDCP sequence number synchronization device according to claim 6, it is characterised in that
Described receiver module is specifically for receiving the UE to be received descending PDU serial number DL_Receive_SN sent；
The value of the described processing module to be sent descending PDU serial number DL_Send_SN specifically for self being preserved is revised as consistent with the value of described DL_Receive_SN, and is revised as consistent with the value of described DL_Send_SN by the serial number of the initial PDU sent in buffering window。
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| KR102598001B1 (en) * | 2018-06-18 | 2023-11-06 | 삼성전자 주식회사 | A method and apparatus for efficient packet duplication transmission in a mobile communication system |
| CN111294131B (en) * | 2018-12-07 | 2021-10-01 | 华为技术有限公司 | Communication method and device |
| CN113473563B (en) * | 2021-07-05 | 2022-09-02 | 中国联合网络通信集团有限公司 | Distribution method, mobile network switching method, system, server and medium |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1437368A (en) * | 2002-02-08 | 2003-08-20 | 华硕电脑股份有限公司 | Data transmission confirming method |
| CN101267440A (en) * | 2008-05-07 | 2008-09-17 | 中兴通讯股份有限公司 | No damage relocation method and system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100595583B1 (en) * | 2001-07-09 | 2006-07-03 | 엘지전자 주식회사 | Method for transmitting packet data according to handover in a mobile communication system |
-
2012
- 2012-08-20 CN CN201210296408.9A patent/CN103634893B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1437368A (en) * | 2002-02-08 | 2003-08-20 | 华硕电脑股份有限公司 | Data transmission confirming method |
| CN101267440A (en) * | 2008-05-07 | 2008-09-17 | 中兴通讯股份有限公司 | No damage relocation method and system |
Non-Patent Citations (1)
| Title |
|---|
| 3rd Generation Partnership Project."Technical Specification Group Radio Access Network Packet Data Convergence Protocol (PDCP) specification".《3GPP TS 25.323 V10.1.0》.2011, * |
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