CN101965064A - Method and device for transmitting packet data convergence protocol data - Google Patents
Method and device for transmitting packet data convergence protocol data Download PDFInfo
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- CN101965064A CN101965064A CN2009101582738A CN200910158273A CN101965064A CN 101965064 A CN101965064 A CN 101965064A CN 2009101582738 A CN2009101582738 A CN 2009101582738A CN 200910158273 A CN200910158273 A CN 200910158273A CN 101965064 A CN101965064 A CN 101965064A
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Abstract
The invention discloses a method for transmitting packet data convergence protocol data, comprising the following steps of: setting a corresponding local user data loop module for each PDCP (Packet Data Convergence Protocol) entity in a base station, receiving a UE identifier pair allowing direct user data exchange in the base station and issued by a network side and storing the UE identifier by the base station; receiving uplink data of the UE and transmitting the uplink data to the local user data loop module of the UE by the PDCP entity of the UE in the base station; analyzing the uplink data packet by the local user data loop module of the UE and judging whether the uplink data packet accords with the preset strategy, if so, transmitting the uplink data packet to the destination UE directly by the local user data loop module of the UE. The invention also discloses a device for transmitting packet data convergence protocol data. The invention greatly reduces the data transmission pressure of a core net.
Description
Technical field
The present invention relates to packet data polymerized agreement (PDCP, Packet Data Convergence Protocol) transmission technology of data, relate in particular to the transmission method and the device of packet data polymerized protocol data in a kind of Long Term Evolution (LTE, Long Term Evolution) system.
Background technology
Mobile communication system has developed into LTE at present.LTE has adopted OFDM (OFDM, Orthogonal Frequency Division Multiplexing), multiple-input and multiple-output (MIMO, MultipleInput Multiple Output) technology such as, in the wireless network networking, adopt double-layer structure, and introduced family's evolution base station (HeNB, Home evolved NodeB).Fig. 1 is the structural representation that includes the LTE of HeNB, comprise user terminal (UE, User Equipment), access node (eNB, evelvedNodeB), the access node (HeNB of family, Home evolved NodeB) and core network (EPC, Evolved Packet Core).ENB, HeNB promptly constitute wireless access network (RAN, Radio AccessNetwork), RAN is used to handle all and wireless function associated, and EPC handles all data and connects and comprise voice call (VoIP, and the exchange of realization and external network and routing function Voice over Internet Protocol).
Fig. 2 is LTE user data transmission protocol data structure and transfer of data schematic diagram, as shown in Figure 2, the PDCP entity is arranged in UE and RAN, carry out the header compress/decompress of packet respectively, integrity protection, functions such as transmitting user data, PDCP entity will be forwarded to Radio Link control (RLC, Radio Link Control) layer by the PDCP data cell (PDCP-PDU) that packet generates; When switching, the sequence number and the cached data packet of the packet correspondence of its maintenance is forwarded to purpose eNB.The PDCP entity is separately positioned among UE and the RAN, can be set to one or more.The transmission of user data will be from UE, just begin to arrive the business service network at last through eNB, gateway (S-GW), PDN Gateway (P-GW).In this process, from the PDCP sublayer, near the real content of user data.
With the upstream data is example, and the flow process that the PDCP entity transmits data is:
Step 1: in UE, the application layer data of UE is packaged into Internet protocol (IP) packet or point-to-point protocol (PPP, Point to Point Protocol) packet sends to the PDCP entity among the UE;
Step 2: the PDCP entity among the UE is abideed by RoHC (Robust Header Compression), and packet is carried out header-compressed, sends the rlc layer among the UE behind the generation PDCP-PDU to;
Step 3: the rlc layer among the UE sends to medium access control (MAC, Media Access Control) layer after this PDCP-PDU is increased the RLC header; MAC layer in UE is to sending to the physical layer of UE behind the PDCP-PDU increase mac header that has increased the RLC header; In the physical layer of UE, the PDCP-PDU of this increase RLC header and mac header is carried out sending to after the operations such as coded modulation eNB under the UE;
Step 4: eNB carries out sending to after the operations such as coded demodulation the MAC layer among the eNB to this PDCP-PDU, MAC layer among the eNB is removed the mac header that adds in the step 3, protocol Data Unit (PDU, Protocol Data Unit) behind the removal mac header is sent to the rlc layer among the eNB; After rlc layer among the eNB is removed the RLC header that adds in the step 3, send to PDCP entity among the eNB with removing PDCP-PDU behind mac header and the RLC header;
Step 5: the PDCP entity among the eNB uses RoHC that PDCP-PDU is carried out header decompression, generates IP packet or PPP information bag;
Step 6: eNB sends to EPC by general packet radio service system tunnel protocol-user's face (GTP-U) tunnel through the S1 interface with IP packet or PPP information bag, and EPC sends to IMS or external network with IP packet or PPP information bag again.
Above-mentioned is the process that sends packet from UE to the external network, the just process of uplink data sending bag.Send the process of packet from external network to UE, the process that is the process of descending transmission packet and uplink data sending bag is similar, just the PDCP entity among the eNB is responsible for that downlink data packet is carried out the PDCP header-compressed and is formed PDCP-PDU and transmission, and the PDCP entity among the UE is responsible for the PDCP-PDU that receives is carried out header decompression and transmission.
In LTE, HeNB is a kind of of base station, is mainly used in the private resource of private user, is deployed in private sites such as family, group, company or school and uses, and only limits some specific user and inserts.HeNB covers with the E-UTRAN honeycomb that solves among a small circle, and (as digital subscriber's line DSL) is connected to Access Network by fixed line, and user's miscellaneous service can be finished (for example phone, online etc.) by HeNB.HeNB attracts user's aspect to be its abundant, location-based business, the advantage of good quality of service and differentiated charging aspect.The function of HeNB has been continued to use the basic function of the common eNB of part, also may increase some user oriented private functions, and for example HeNB owner can dispose function, appliance network control of use (increase deletion user), the home gateway of HeNB or the like.
The advantage of HeNB has: be connected to Access Network by fixed line, save operator and set up base station and maintenance cost; Solve the capacity problem of indoor covering and eNB, in addition, because the HeNB coverage is little, provide the characteristics of whole cell radio resources to a few users, it can utilize the high speed access characteristic of LTE more fully; And provide preferential rate, mobile operator to seize fixed network operation market (it is generally acknowledged that HeNB can use the rate of monthly payment).The mode of user's use HeNB is as the Wi-Fi router, can plug and play, wireless Internet access, and difference is that the user no longer needs other terminal equipment, and only need use general LTE mobile phone or LTE data card.When inserting as medium-sized and small enterprises/office data, application class is similar to the family data access product, but need its access capacity of expansion, so that service is provided for the crew of office, this product can be connected to IAD by the data circuit that enterprise rents, and then connects mobile core network, is different from the domestic. applications scene in addition, will there be a large amount of inner voice/data communications in enterprise's application scenarios, therefore also have the demand that realizes speech and data inner exchanging.
HeNB is also relevant with closed user group (CSG, Closed Subscriber Group) notion, allows the user of access to family base station overlay area to be called CSG user.Belong to CSG zone just, zone that one or more HeNB of this user group cover.Each CSG identifies with unique sign in a public land mobile network (PLMN, Public Land Mobile Network).A sub-district (cell) can only belong to a CSG zone or a tracing area (TA, Tracking Area).CSG and TA geographically can crossovers.The a plurality of cell that belong to same CSG zone may be discontinuous on the geographical position, may be in one or more TA together.Can know that by cell broadcasting this sub-district is CSG cell or TA cell.
Have only the user through authorizing could allow to be linked among the CSG, notion and the TA of CSG are similar, all are made up of several sub-districts.Allow visit CSG tabulation (white list) can control the visit of non-CSG user by in UE and MME, setting to HeNB, the corresponding relation database of storage TA and CSG in MME will allow the CSG tabulation of visit to be issued to the CSG user of permission at ATTACH or TAU process.White list (white list) is exactly the CSG tabulation of the permission UE visit set in UE and MME.
LTE all adopts bag (packet) transfer of data, and especially, the user data that transmits between the UE under the same eNB/HeNB all is the bag data.
Along with the development of HeNB, also some household electronic equipments are managed via HeNB in discussion.As seen, the UE that belongs to HeNB has relative position and fixes, professional characteristics such as in the majority are taking place between UE under the same cell.
At some above-mentioned particular conditions, comprise real time transport protocol (RTP, Real-time TransportProtocol) message data such as message data, when being transmitted between the UE under the same HeNB, still to pass through EPC, this has just reduced the data transmission efficiency between UE, has also strengthened the processing load of EPC.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of transmission method and device of packet data polymerized protocol data, supports the immediate data transmission of two users' terminal under the same base station, has alleviated network burden greatly.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of transmission method of packet data polymerized protocol data comprises:
For each packet data polymerized agreement PDCP entity in the base station is provided with corresponding local user data loop module, described base station receive permission that network side issues directly carries out the user data exchange in described base station user terminal identification to after store; And
The PDCP entity of the user terminal in the described base station sends described local user data loop module to after receiving the upstream data of described user terminal, described local user data loop module is resolved described upstream data bag, judge whether to meet predetermined policy, if meeting then described local user data loop module directly is sent to described upstream data bag described purpose local user data loop module, and the following PDCP entity that reaches described purpose user terminal; Then directly be not sent to upper network layer if meet.
Preferably, described predetermined policy is: user data exchange is directly carried out in the purpose user terminal of described upstream data bag and the identification information of described user terminal and described permission in described base station user terminal identification meets this strategy during to coupling, otherwise does not meet this strategy.
Preferably, the local user data loop module of described PDCP entity correspondence is set up with the foundation of described PDCP entity, and disappears with the disappearance of described PDCP entity.
Preferably, directly to carry out the user data of user data exchange in described base station be the PDCP data in described permission.
Preferably, described method also comprises:
For described local user data loop module is provided with counter, the PDCP quantity of data packets that described local user data loop module directly is forwarded to other local user data loop modules is added up, and report to network side.
Preferably, described method also comprises:
User data exchange is directly carried out in described permission in described base station user terminal identification is when upgrading, notify described base station by network side, the user terminal identification of user data exchange is directly carried out in the local described permission of described base station renewal in described base station right.
A kind of transmitting device of packet data polymerized protocol data comprises:
The unit is set, is used to each PDCP entity in the base station that corresponding local user data loop module is set;
Receiving element, being used to receive permission that network side issues, directly to carry out the user terminal identification of user data exchange in described base station right;
Memory cell, the permission that is used for that described receiving element is received are directly carried out the user terminal identification of user data exchange to storing in described base station;
Local user data loop module is used to receive and resolve the upstream data bag that the PDCP entity reports, and judges whether to meet predetermined policy; And
Transmission unit, be used for judged result forwarding uplink data bag according to described local user data loop module, if meet the local user data loop module that then described upstream data bag is sent to described purpose user terminal, otherwise described packet is sent to upper network layer.
Preferably, described predetermined policy is: user data exchange is directly carried out in the purpose user terminal of described upstream data bag and the identification information of described user terminal and described permission in described base station user terminal identification meets this strategy during to coupling, otherwise does not meet this strategy.
Preferably, the local user data loop module of described PDCP entity correspondence is set up with the foundation of described PDCP entity, and disappears with the disappearance of described PDCP entity.
Preferably, directly to carry out the user data of user data exchange in described base station be the PDCP data in described permission.
Preferably, described device also comprises:
Counting unit is used for the PDCP quantity of data packets that described local user data loop module directly is forwarded to other local user data loop modules is added up, and by transmission unit statistics is reported to network side.
Preferably, described device also comprises:
Updating block, be used for described receiving element receive new permission that network side issues directly carries out the user data exchange in described base station user terminal identification to the time, the permission of described base station is directly carried out the user terminal identification of user data exchange to upgrading in described base station.
Among the present invention, when two users' terminal of specified data transmission is arranged in same base station, if the identification information that the user terminal identification centering of user data exchange comprises two users' terminal is directly carried out in the permission of storing in the base station in described base station, then the data of two users' terminal are directly transmitted under this base station, and transmit without core net, particularly the user has prepay the PDCP data of grouped data flow expense, need not pass through core net.The present invention has alleviated the transfer of data pressure of core net greatly.
Description of drawings
Fig. 1 is the structural representation that includes the LTE of HeNB;
Fig. 2 is LTE user data transmission protocol data structure and transfer of data schematic diagram;
Fig. 3 is the transmission method flow chart of the packet data polymerized protocol data of the present invention;
Fig. 4 is user data transmission protocol data structure of the present invention and transfer of data schematic diagram;
Fig. 5 is the composition structural representation of the transmitting device of the packet data polymerized protocol data of the present invention.
Embodiment
Basic thought of the present invention is: when two users' terminal of specified data transmission is arranged in same base station, if the identification information that the user terminal identification centering of user data exchange comprises two users' terminal is directly carried out in the permission of storing in the base station in described base station, then the data of two users' terminal are directly transmitted under this base station, and transmit without core net, particularly the user has prepay the PDCP data of grouped data flow expense, need not pass through core net.The present invention has alleviated the transfer of data pressure of core net greatly.
For making the purpose, technical solutions and advantages of the present invention clearer, by the following examples and with reference to accompanying drawing, the present invention is described in more detail.
Fig. 3 is the transmission method flow chart of the packet data polymerized protocol data of the present invention, as shown in Figure 3, for simplicity's sake, the main signaling message that only drawn among the figure, and ignored the situation of each link establishment.Increased a local user data loop module on the PDCP layer in eNB/HeNB, this local user data loop module is set up with the foundation of PDCP entity, disappearance with the PDCP entity disappears, and the user data on DPCP entity and upper strata all passes through this local user data loop module alternately.The transmission method of the packet data polymerized protocol data of the present invention may further comprise the steps:
Step 301:EPC sends Indication message to eNB/HeNB, and message is used for user data forwarding in the indicating cell, and promptly qualified two users' terminal inserts when carrying out transfer of data in same base station, will directly carry out transfer of data by this base station for two users' terminal.This message can be used as Non-Access Stratum (NAS, NonAccess Stratum) message and sends, and message includes: allow the UE ID of end user's exchanges data in the eNB/HeNB right.
Step 302:eNB/HeNB storage UE ID is to the UE ID of end user's exchanges data in the eNB/HeNB (allow to).UE ID plays a part the addressing of data destination.UE ID is to being used to identify as the both sides of transfer of data and UE ID during to coupling, and the data between the user will no longer be uploaded to EPC, but directly transmits data between two UE by this eNB/HeNB.
Step 303:UEA sends user data, and destination address is to UEB.For example, user data is a RTP message bag, belongs to a up process of data.
UEA to the packaged type of data to be transmitted referring to the associated description in " the PDCP entity transmits the flow processs of data " in " background technology ".
Local user data loop module judgement user data type among the step 304:eNB/HeNB can directly be transmitted.After the PDCP entity at UEA foundation among the eNB/HeNB receives the upstream data bag of UEA, be forwarded to the local user data loop module of setting up at UEA.Local user data loop module is resolved the upstream data bag, obtain information such as source IP address (UEA sign), purpose IP address (UEB sign) and corresponding ports number in the upstream data bag, the UE ID that calls end user's exchanges data in the permission eNB/HeNB that stores among the eNB/HeNB is right, determine whether mate with UEA sign and UEB sign, if coupling means that then eNB/HeNB can directly transmit data between UEA and UEB.Perhaps, the terminal iidentification that issues except that terminal identification information and network side is to mating, in the base station port address of transfer of data also must with the port address coupling of setting.Perhaps, the terminal iidentification that issues except that terminal identification information and network side is to mating, and the size of two terminal transmission data can not surpass and the setting data amount.
Step 305:eNB/HeNB directly sends to UEB to the UEA user data.
When allowing directly transmission, the local user data loop module of UEA is no longer delivered the upper strata to user data, but the message bag of directly the PDCP entity of receiving being sent, transfer to (UEB) local user data loop module of UE ID to correspondence, give the PDCP entity of the lower floor of UEB data passes by the local user data loop module of UEB, send to purpose UE (UEB's) through PDCP entity and lower floor (RLC); If do not allow direct transmission, then local user data loop module is transferred to the upper strata processing to user data.
Here, other of PDCP entity remains unchanged as fail safe (encrypting and decrypting, integrity checking etc.), heading compression function.
Need to prove, because the data between UEA and the UEB are directly transmitted by eNB/HeNB, even for the user who has paid the data traffic expense, some operators are directed to this for also being unacceptable without network side fully, and counter can be set, when local user data loop module is directly transmitted packet by eNB/HeNB, up-downgoing quantity of data packets to transmission is added up, and reports the upper strata, and network side carries out traffic statistics according to quantity of data packets.
Step 306: this flow process, corresponding is that the user data genus that UEA sends not directly is forwarded to UEB by eNB/HeNB, is designated as packet packet_rr, is the user data of UEA to UEB.
After the data of the local user data loop module flow process on receiving among the step 307:eNB/HeNB,, judge that the user data type of packet_rr does not belong to the data that can directly transmit in the sub-district according to local judgment criterion.The process of judging is referring to step 304.
Step 308:eNB/HeNB sends to EPC to packet packet_rr.
What this process adopted is present technology, and promptly as there not being local user data loop functions of modules, the data message bag is submitted to the upper strata through PDCP.
Step 309:EPC sends to eNB/HeNB to packet packet_rr.
Step 310:eNB/HeNB sends to UEB to packet packet_rr.
What step 309,310 process adopted is present technology, promptly as there not being local user data loop functions of modules.
Fig. 4 is user data transmission protocol data structure of the present invention and transfer of data schematic diagram, as shown in Figure 4, user data transmission protocol data structure of the present invention is identical with data structure shown in Figure 2, but its transmission means is different: promptly to the UEID by permission end user's exchanges data in eNB/HeNB of EPC indication is right, directly the upstream data of UEA is transmitted to UEB by eNB, observe from protocol layer, the PDCP PDU of UEA has promptly arrived UEB through eNB, need not the transmission through gateway (GW) and business service network.
The present invention has realized the method at PDCP sublayer transmitting user data, improved user data transmission speed, and the processing pressure that has alleviated core net, and to other sublayer such as not influence such as MAC, RLC, do not need to increase extra physical entity yet, realize that cost is lower.
Fig. 5 is the composition structural representation of the transmitting device of the packet data polymerized protocol data of the present invention, as shown in Figure 5, the transmitting device of the packet data polymerized protocol data of the present invention comprises unit 50, receiving element 51, memory cell 52, local user data loop module 53 and transmission unit 54 is set, wherein, unit 50 being set is used to each PDCP entity in the base station that corresponding local user data loop module 53 is set; Receiving element 51 is used to receive permission that network side issues, and directly to carry out the user terminal identification of user data exchange in described base station right; The permission that memory cell 52 is used for that receiving element 51 is received is directly carried out the user terminal identification of user data exchange to storing in described base station; Local user data loop module 53 is used to receive and resolve the upstream data bag that the PDCP entity reports, and judges whether to meet predetermined policy; Wherein, predetermined policy is: user data exchange is directly carried out in the purpose user terminal of described upstream data bag and the identification information of described user terminal and described permission in described base station user terminal identification meets this strategy during to coupling, otherwise does not meet this strategy.Perhaps, predetermined policy is: the terminal iidentification that issues except that terminal identification information and network side is to mating, in the base station port address of transfer of data also must with the port address coupling of setting.Perhaps, predetermined policy is: the terminal iidentification that issues except that terminal identification information and network side is to mating, and the size of two terminal transmission data can not surpass and the setting data amount.The local user data loop module 53 of described PDCP entity correspondence is set up with the foundation of described PDCP entity, and disappears with the disappearance of described PDCP entity.Transmission unit 54 is used for the judged result forwarding uplink data bag according to local user data loop module 53, if meet then described upstream data bag is sent to the local user data loop module of described purpose user terminal, otherwise described packet is sent to upper network layer.The user data exchange is directly carried out in permission in described base station user data is the PDCP data.
As shown in Figure 5, the transmitting device of the packet data polymerized protocol data of the present invention also comprises counting unit 55, the PDCP quantity of data packets that is used for local user data loop module 53 directly is forwarded to other local user data loop modules is added up, and by transmission unit 54 statistics is reported to network side.
As shown in Figure 5, the transmitting device of the packet data polymerized protocol data of the present invention also comprises updating block 56, be used for receiving element 51 receive new permission that network side issues directly carries out the user data exchange in described base station user terminal identification to the time, the permission of described base station is directly carried out the user terminal identification of user data exchange to upgrading in described base station.
It will be appreciated by those skilled in the art that counting unit 55 among Fig. 5 and updating block 56 are not the essential features that realizes the transmitting device of packet data polymerized protocol data shown in Figure 5, but optimize device shown in Figure 5 and the technical characterictic that adopts.
Those skilled in the art are to be understood that, the transmitting device of packet data polymerized protocol data shown in Figure 5 is for the transmission method of realizing aforesaid packet data polymerized protocol data is provided with, and the realization function of each processing unit among the figure and processing module can be with reference to the associated description of preceding method and understood.The function of each unit and each module can realize by the program that runs on the processor in the device shown in Figure 5, also can realize by concrete logical circuit, realize that by digit counter memory cell 52 realizes by memory as the counting unit among the figure 55.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.
Claims (12)
1. the transmission method of a packet data polymerized protocol data is characterized in that, comprising:
For each packet data polymerized agreement PDCP entity in the base station is provided with corresponding local user data loop module, described base station receive permission that network side issues directly carries out the user data exchange in described base station user terminal identification to after store; And
The PDCP entity of the user terminal in the described base station sends described local user data loop module to after receiving the upstream data of described user terminal, described local user data loop module is resolved described upstream data bag, judge whether to meet predetermined policy, if meeting then described local user data loop module directly is sent to described upstream data bag described purpose local user data loop module, and the following PDCP entity that reaches described purpose user terminal; Then directly be not sent to upper network layer if meet.
2. method according to claim 1, it is characterized in that, described predetermined policy is: user data exchange is directly carried out in the purpose user terminal of described upstream data bag and the identification information of described user terminal and described permission in described base station user terminal identification meets this strategy during to coupling, otherwise does not meet this strategy.
3. method according to claim 1 is characterized in that, the local user data loop module of described PDCP entity correspondence is set up with the foundation of described PDCP entity, and disappears with the disappearance of described PDCP entity.
4. according to each described method in the claim 1 to 3, it is characterized in that the user data exchange is directly carried out in described permission in described base station user data is the PDCP data.
5. method according to claim 4 is characterized in that, described method also comprises:
For described local user data loop module is provided with counter, the PDCP quantity of data packets that described local user data loop module directly is forwarded to other local user data loop modules is added up, and report to network side.
6. method according to claim 1 is characterized in that, described method also comprises:
User data exchange is directly carried out in described permission in described base station user terminal identification is when upgrading, notify described base station by network side, the user terminal identification of user data exchange is directly carried out in the local described permission of described base station renewal in described base station right.
7. the transmitting device of a packet data polymerized protocol data is characterized in that, comprising:
The unit is set, is used to each PDCP entity in the base station that corresponding local user data loop module is set;
Receiving element, being used to receive permission that network side issues, directly to carry out the user terminal identification of user data exchange in described base station right;
Memory cell, the permission that is used for that described receiving element is received are directly carried out the user terminal identification of user data exchange to storing in described base station;
Local user data loop module is used to receive and resolve the upstream data bag that the PDCP entity reports, and judges whether to meet predetermined policy; And
Transmission unit, be used for judged result forwarding uplink data bag according to described local user data loop module, if meet the local user data loop module that then described upstream data bag is sent to described purpose user terminal, otherwise described packet is sent to upper network layer.
8. device according to claim 7, it is characterized in that, described predetermined policy is: user data exchange is directly carried out in the purpose user terminal of described upstream data bag and the identification information of described user terminal and described permission in described base station user terminal identification meets this strategy during to coupling, otherwise does not meet this strategy.
9. device according to claim 7 is characterized in that, the local user data loop module of described PDCP entity correspondence is set up with the foundation of described PDCP entity, and disappears with the disappearance of described PDCP entity.
10. according to each described device in the claim 7 to 9, it is characterized in that the user data exchange is directly carried out in described permission in described base station user data is the PDCP data.
11. device according to claim 10 is characterized in that, described device also comprises:
Counting unit is used for the PDCP quantity of data packets that described local user data loop module directly is forwarded to other local user data loop modules is added up, and by transmission unit statistics is reported to network side.
12. device according to claim 7 is characterized in that, described device also comprises:
Updating block, be used for described receiving element receive new permission that network side issues directly carries out the user data exchange in described base station user terminal identification to the time, the permission of described base station is directly carried out the user terminal identification of user data exchange to upgrading in described base station.
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| CN200910158273.8A CN101965064B (en) | 2009-07-23 | 2009-07-23 | Method and device for transmitting packet data convergence protocol data |
| PCT/CN2009/075416 WO2011009258A1 (en) | 2009-07-23 | 2009-12-08 | Method and apparatus for transmitting packet data convergence protocol (pdcp) data |
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| CN100518180C (en) * | 2004-12-03 | 2009-07-22 | 华为技术有限公司 | System and method for realizing packet data polymerized protocol function |
| WO2008069520A1 (en) * | 2006-12-07 | 2008-06-12 | Electronics And Telecommunications Research Institute | Ip converged mobile access gateway for 3g mobile service and service method using the same |
| CN101159905B (en) * | 2007-11-07 | 2010-04-21 | 华为技术有限公司 | Local exchange method, core network equipment and network system of implementing in base station controller |
| CN101374355B (en) * | 2008-10-24 | 2013-06-05 | 华为技术有限公司 | Method and apparatus for implementing local exchange |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2011009258A1 (en) | 2011-01-27 |
| CN101965064B (en) | 2014-07-16 |
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