CN1859261A - Method for realizing GPRS/WCDMA and evolution block core net connection - Google Patents

Abstract

The present invention provides a method for connecting GPRS/WCDMA with evolution grouping core network. Said method includes A, configuring communication interface between access network and evolution grouping core network; B, access network and evolution grouping core network mutually transmitting data through said communication interface. The present invention makes evolution grouping core network support current access network service, service provider capable of smooth evolution network, realizing whole network uniform operation.

Description

The method that a kind of GPRS/WCDMA of realization is connected with evolution block core net

Technical field

The invention belongs to wireless communication field, relate in particular to a kind of method that realizes that existing GPRS/WCDMA network is connected with evolution block core net.

Background technology

Existing GPRS (General Package Radio Service, GPRS)/WCDMA (Wideband Code Division Multiple Access, Wideband Code Division Multiple Access (WCDMA) inserts) network configuration is as shown in Figure 1, adopted and the similar structure of second generation mobile communication system, comprise UMTS (Universal MobileTelecommunications System, universal mobile telecommunications system) land radio access web (UMTSTerritorial Radio Access Network, UTRAN), GSM EDGE Radio Access Network (GSM/EDGE Radio Access Network, GERAN), core net (Core Network, CN) and user terminal (User Equipment, UE).Wherein, GERAN/UTRAN is used to realize all and wireless function associated, and CN handles that all voice calls are connected with data in the GPRS/WCDMA system, and is used to realize and the exchange of external network and the function of route.CN from be divided in logic circuit commutative field (Circuit Switched Domain, CS) and packet-switched domain (Packet Switched Domain PS), supports speech and data service respectively.

The CS territory comprises mobile services switching centre (Mobile service Switching Center, MSC)/VLR Visitor Location Register (Visit Location Register, VLR), media gateway (Media GareWay, MGW) and the Gateway Mobile Switching Center server (Gateway Mobile Switching Center GMSC) waits node.Wherein, MSC/VLR is used to transmit the chain of command data in CS territory, realize mobile management, call out functions such as control and authentication ciphering, MGW is used to realize the transmission of user face data, GMSC is used to realize the calling control of MSC and the chain of command function that mobility is controlled, and communicates by letter as the route of realization calling incoming call and with extranets and finishes inter-network settlement etc.

The PS territory comprises attaching position register (Home Location Register, HLR), service universal grouping wireless business supporting node (Serving GPRS Supporting Node, SGSN) and ggsn (Gateway GPRS Supporting Node, GGSN) etc.Wherein, HLR is used for storing user subscription information.Position and the MSC/VLR in CS territory of SGSN in the PS territory is similar, and its Core Feature is to realize functions such as routing forwarding, mobile management, session management and user profile storage.GGSN is mainly used in external network and carries out interface, also is used to realize the transmission of user face data simultaneously.

3GPP (Third Generation Partnership Project, third generation partner program) in order to strengthen the competitiveness of future network, studying at present a kind of 3GPP network system of evolution, for core network, the main following points of the principle of network evolution:

1. will only there be the PS territory in next generation network, not have the CS territory.The business in existing C S territory will insert IMS (IP Multimedia Core Network Subsystem, IP multimedia core network subsystem) by packet domain and realize;

2. network using all-IP (Internet Protocol, the Internet protocol) network architecture;

3. support the access of non-3GPP network (Non 3GPP IP Access), support roaming and the switching of user between evolvement network and non-3GPP network;

4. the simplification network architecture, the level of minimizing network node, the time delay of minimizing transfer of data;

5. simplify the customer service connection and set up signaling process, reduce the professional time delay that connects.

At present, a kind of evolution block core net network framework as shown in Figure 2, comprise Mobility Management Entity (Mobility Management Entity, MME), user entity (User Plane Entity, UPE) and three logical functional entities of the user's face anchor point between the different access systems (Inter Access System Anchor, Inter ASAnchor).Wherein, MME is responsible for the mobile management of chain of command, comprises the management of user's context and mobile status, and distributing user temporary identity sign etc. are corresponding to the control plane part of current GPRS/WCDMA internal system SGSN; UPE is responsible for initiating paging for downlink data under the idle condition, and IP bearing parameter and the interior routing iinformation of network etc. are preserved in management, corresponding to the datum plane part of current GPRS/WCDMA internal system SGSN and GGSN; Inter AS Anchor then serves as the user's face anchor point between different access systems.(Policy and ChargingRule Function PCRF) is used for chargeing and policy control for charging and strategic control module.(Home SubscriberServer HSS) is used for storing user subscription information to home network server.

Owing to do not have communication interface between existing evolution block core net network framework and the Access Network GERAN/UTRAN, be that the evolution block core net that mobile operator builds is only supported the evolution wireless access network, and original GERAN/UTRAN network must be connected in original GPRS core net, make evolution block core net can not support the business of existing Access Network GERAN/UTRAN, be unfavorable for the smooth evolution of network.Simultaneously, at the initial stage of building evolvement network, when the terminal of supporting GERAN/UTRAN and evolution wireless access network is frequently switched between GERAN/UTRAN and evolution wireless access network, can cause frequently switching between GPRS core net and the evolution block core net, be unfavorable for the unified operation of whole net, and increase the signaling process of equipment room and the time delay of Signalling exchange, reduce success rate for switching.

Summary of the invention

The method that the object of the present invention is to provide a kind of GPRS/WCDMA of realization to be connected with evolution block core net, be intended to solve between existing Access Network GERAN/UTRAN and the evolution block core net and do not have communication interface, cause evolution block core net can not support the business of GERAN/UTRAN, can not realize that network seamlessly transits, the problem of the unified operation of the whole net of influence.

The object of the present invention is achieved like this, the method that a kind of GPRS/WCDMA of realization is connected with evolution block core net, and described method comprises the steps:

A., communication interface between Access Network and the evolution block core net is set;

B. transmit data by described communication interface between Access Network and the evolution block core net.

Described Access Network is GSM EDGE Radio Access Network GERAN or UMTS Terrestrial radio access network UTRAN.

Described communication interface is Gb or Iu interface.

The present invention is by being provided with interface between evolution block core net and existing Access Network, make evolution block core net can support the business of existing Access Network, and operator can the smooth evolution network, and realized the unified operation of whole net.Simultaneously, first stage of construction at evolvement network, existing Access Network can utilize the resource of evolution block core net, and evolution block core net also can utilize the coverage of the good covering expansion evolvement network of existing Access Network to terminal, improves the quality of service of network boundary.

Description of drawings

Fig. 1 is the network architecture diagram of existing GPRS/WCDMA;

Fig. 2 is the network architecture diagram that evolution block core net and GPRS/WCDMA build together in the prior art;

Fig. 3 is the network architecture diagram that evolution block core net provided by the invention and GPRS/WCDMA build together;

Fig. 4 is the realization schematic diagram that the user terminal of existing Access Network among the present invention inserts evolution block core net.

Fig. 5 be among the present invention when user terminal is realized adhering to, insert the signaling process figure of evolution block core net by GERAN/UTRAN.

Embodiment

In order to make purpose of the present invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.

The present invention is by being provided with interface between evolution block core net and existing Access Network, make evolution block core net can support the business of existing Access Network, and operator can the smooth evolution network, and realized the unified management of whole net.

Fig. 3 shows the network architecture that evolution block core net provided by the invention and GPRS/WCDMA build together.By between evolution block core net and existing Access Network GERAN/UTRAN, Gb and Iu interface being set, realize the access of GERAN/UTRAN to evolution block core net.

Fig. 4 shows on Fig. 3 basis the GERAN/UTRAN terminal by GERAN/UTRAN, is linked into the principle of evolution block core net again by Gb and Iu interface.In concrete the application, evolution block core net is judged the access style of terminal, if find that terminal is that the GERAN/UTRAN side joint is gone into, then call and support the GPRS/WCDMA protocol stack of Gb and Iu interface to realize being linked into evolution block core net, about the detailed content of GPRS/WCDMA protocol stack can be referring to 3GPP TS 23.060 and 3GPP TS24.008, the present invention quotes at this, repeats no more.

Fig. 5 is an example with the attachment flow, shows the signaling process of user terminal by GERAN/UTRAN access evolution block core net, and details are as follows:

1, the GERAN/UTRAN terminal initiates to adhere to (attach) request message to the MME/UPE of evolution block core net;

2, MME/UPE sends authentication request message (IdentityRequest) to the GERAN/UTRAN terminal;

3, the GERAN/UTRAN terminal is to MME/UPE return authentication response message (IdentityResponse);

4, carry out authentication between GERAN/UTRAN terminal, MME/UPE and the HSS;

5, MME/UPE initiates location update request message (Update Location) to HSS;

6, HSS sends to MME/UPE and inserts user data requests message (Insert Subscriber Data);

7, MME/UPE returns to HSS and inserts user data response message (Insert Subscriber DataAck);

8, HSS upgrades response message (Update Location Ack) to the MME/UPE home position;

9, MME/UPE sends to adhere to the GERAN/UTRAN terminal and accepts message (Attach Accept);

10, the GERAN/UTRAN terminal sends to adhere to MME/UPE and finishes message (AttachComplete).

Below only be that example is illustrated by the process that GERAN/UTRAN inserts evolution block core net user terminal with the attachment flow, same user terminal also can realize Routing Area Update by between GERAN/UTRAN and the evolution block core net, separate and process such as PDP (packet data protocol) activation, repeats no more.

Need to prove that being linked into evolution block core net with GERAN/UTRAN by Gb and Iu interface among the present invention is that example is illustrated, also can adopt other interfaces, protocol stack that calls accordingly and concrete signaling process are also different.

The above only is preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of being done within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.

Claims (3)

1, the method that is connected with evolution block core net of a kind of GPRS/WCDMA of realization is characterized in that described method comprises the steps:

A., communication interface between Access Network and the evolution block core net is set;

B. transmit data by described communication interface between Access Network and the evolution block core net.

2, the method that realizes that GPRS/WCDMA is connected with evolution block core net as claimed in claim 1 is characterized in that described Access Network is GSM EDGE Radio Access Network GERAN or UMTS Terrestrial radio access network UTRAN.

3, the method that realizes that GPRS/WCDMA is connected with evolution block core net as claimed in claim 1 is characterized in that described communication interface is Gb or Iu interface.

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