CN101094497A

CN101094497A - Method for switching mobile users between different access systems

Info

Publication number: CN101094497A
Application number: CNA200610054851XA
Authority: CN
Inventors: 胡伟华; 刘岚
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2006-01-06
Filing date: 2006-02-17
Publication date: 2007-12-26
Anticipated expiration: 2026-02-17
Also published as: WO2007076729A1; CN101094497B

Abstract

The key ideal of the invention is: the process of switching over the mobile user at idle status from 2G/3G system to a future evolution network at contains a process of establishing or updating a corresponding default IP connection bearer for the mobile user; the process of establishing or updating the default IP connection bearer for mobile user can be made before the user of future evolution network makes registration update to the user's home HSS, or be made after the user of future evolution network makes registration update to the user's home HSS. By the invention, when the mobile user end starts the data transmission service, the network can provide fast response such that the mobile user end can be fast transferred from the idle status to the data transmission status.

Description

The method that the mobile subscriber is switched between different access systems

Technical field

The present invention relates to the mobile communication technology field, especially relate to a kind of inter-system switching method of mobile subscriber between 2G/3G connecting system and future evolution network of idle condition.

Background technology

From third generation collaborative project (3rd Generation Partnership Project, 3GPP) version Release7 begins, in order to guarantee the competitiveness of 3GPP system in following 10 years down to the time more of a specified duration, particularly in order to strengthen the 3GPP system handles ability of the IP data service of growth fast, in the 3GPP system, use group technology to need further to strengthen, for this reason, the 3GPP tissue begins to work out future evolution network.Future evolution network is meant the new 3GPP wireless network that occurs behind the 3GPP version Rel7, is called for short with LTE/SAE usually to replace.The most important several sections of the key technology that described future evolution network relates to comprises: reduce time delay and reaction time, Gao Su user data rate more, the reduction of the power system capacity of enhancing and coverage and operator's integral body cost.

The core net of future evolution network mainly comprises mobile management entity (MobilityManagement Entity at present, MME), user entity (User Plane Entity, UPE), user's face anchor point between different access systems (Inter AS Anchor is the user plane anchor formobility between different access systems, InterASSystemAnchor) three logic function bodies, wherein MME is a mobile management entity, be responsible for the mobile management of chain of command, comprise the management of user's context and mobile status, distributing user temporary identity sign, safety function etc., it is corresponding to current universal mobile telecommunications system (Universal Mobile Telecommunication Systems, UMTS) internal services GPRS Support Node (Serving GPRS Support Node, control plane part SGSN); UPE is a user entity, 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, and it is corresponding to the datum plane part of current UMTS internal system SGSN and GGSN; InterASSystemAnchor then serves as the user's face anchor point between different access systems, is responsible for the user's face mobile management between the different access systems, such as distributing the constant IP address of user etc.

For reducing mobile subscriber terminal enters into several biography states from idle condition reaction time, the 3GPP standard proposes the SAE/LTE system and network registry is connected carrying foundation combines and finish with default IP, be in the mobile subscriber terminal first attached network development process, network is just distributed to IP of mobile subscriber terminal and part corresponding bearer resource, realize the always online of mobile subscriber terminal thus, so that mobile subscriber terminal is when need carry out data service, network can be more fast provides service.

With reference to figure 1, this figure switches schematic diagram between the system under mobile subscriber's idle pulley between a kind of 2G/3G system of advising in the present 3GPP standard rough draft and the future evolution network system, specifically mainly may further comprise the steps:

Step 10, the mobile subscriber terminal MS that is in idle condition (Idle) selects in different Access Networks.

Step 11, can trigger the change of connecting system according to the result of mobile subscriber terminal access network selection, mobile subscriber terminal MS sends this mobile subscriber's temporary identity sign and can identify the MME/UPE of the parameter information of MME/UPE in the 2G/3G system to future evolution network SAE/LTE system, initiates registration at the SAE/LTE of future evolution network system.

Step 12, the MME/UPE of future evolution network SAE/LTE system derives the address of the MME/UPE of 2G/3G system according to the parameter information of receiving, and the customer temporary identity sign is sent to the MME/UPE of 2G/3G system.

Step 13, the MME/UPE of 2G/3G system sends to the MME/UPE of future evolution network SAE/LTE system to user's context, and wherein user's context comprises permanent identification and other information of user, such as safety and user's face IP beared information etc.

Step 14, the MME/UPE of future evolution network SAE/LTE system may carry out authentication to mobile subscriber or mobile subscriber terminal equipment.

Step 15, the MME/UPE of future evolution network SAE/LTE system is according to user's permanent identification, the HSS of addressed user ownership, and own to the HSS registration for the MME/UPE of service is provided as the forward direction mobile subscriber.

Step 16, the user's context among the MME/UPE of the HSS indication deletion 2G/3G system of mobile user affiliation.

Step 17, the HSS of mobile user affiliation confirms user registration success to the MME/UPE of future evolution network system.

Step 18, the MME/UPE notice mobile subscriber terminal of future evolution network SAE/LTE system, the mobile subscriber succeeds in registration, and distributes new temporary identity sign for it.

Step 19, the MME/UPE of future evolution network SAE/LTE system initiates to upgrade the route of user's face, the user's face routing update between the UPE of 2G/3G system and mobile anchor point to own, after this mobile anchor point handle on purpose be mobile subscriber terminal data all routing forwarding to the UPE of future evolution network SAE/LTE system.

In addition, for identical to the system's switching flow the 2G/3G system under user's idle condition (Idle state) with top principle from future evolution network SAE/LET system, only need the MME/UPE role who exchanges 2G/3G MME/UPE and SAE/LTE system to get final product, repeat no more here.

If said system handoff procedure mobile subscriber terminal at first registration at future evolution network SAE/LTE system built-in, the default IP that then can obtain this mobile subscriber connects carrying, when after this this mobile subscriber's connecting system being switched to the 2G/3G system, only need to upgrade user's face route and get final product.But conversely, if it is to adhere to registration in the 2G/3G system that mobile subscriber terminal begins most, situation is then different, because present 2G/3G system, (Packet Data Protocol, PDP) contextual activation is two separating process for attaching process and packet data protocol.After the mobile subscriber terminal start, terminal at first can be carried out a GPRS, and (General Packet Radio Service, GPRS) attaching process wherein mainly comprise security process and position and upgrade.Adhere to finish after, terminal does not obtain IP simultaneously and connects carrying, has only terminal to initiate pdp context activation again one time, terminal just can be provided an IP address and corresponding configuration parameters.Also be that the prior art mobile subscriber terminal adheres in the registration process in the 2G/3G system, do not create default IP and connect carrying to the mobile subscriber, the mobile subscriber has only before will carry out data service, this mobile subscriber terminal just can be initiated the PDP activation process, therefore when the mobile subscriber of idle condition switches to future evolution network LTE/SAE system from the 2G/3G system, the IP that does not obtain user default probably connects carrying, to carry out data service if the mobile subscriber is follow-up, must carry out one earlier and obtain the process that network allocation IP connects carrying, this obviously and future evolution network LTE/SAE system to the basic demand contradiction of shortening SRT.

Summary of the invention

The technical problem that the present invention solves is after switching to future evolution network LTE/SAE system at the idle condition mobile subscriber from the 2G/3G system, because mobile subscriber terminal does not have default IP to connect carrying, and influence the reaction speed that subsequent network provides data service service, mobile subscriber under a kind of idle condition switches to future evolution network LTE/SAE system from the 2G/3G system method is proposed, so that obtaining default IP in the 2G/3G system, mobile subscriber terminal do not connect under the carrying situation, default IP connects carrying for the user sets up in request future evolution network LTE/SAE system in net system switching process, and is quicker to guarantee that the subsequent movement user terminal transfers several biography states to from idle condition.

For addressing the above problem, the method that a kind of mobile subscriber of the present invention is switched between different access systems is used for being linked into gradual network system from the 2G/3G system switching that inserts under mobile subscriber's idle condition, and this method mainly comprises:

A, mobile subscriber terminal are initiated network registry to gradual network system;

B, gradual network system carry out register update to the HSS of mobile user affiliation;

C, gradual network system are set up for this mobile subscriber or are upgraded corresponding default IP and connect carrying;

D, gradual network system are accepted mobile subscriber's register requirement and are finished system's switching.

Alternatively, the default IP connection carrying for mobile subscriber's foundation or renewal correspondence specifically comprises described in the step c:

Gradual network system judges whether that the default IP that sets up this mobile subscriber's correspondence connects carrying, if be judged as is, the default IP that then upgrades this mobile subscriber's correspondence connects carrying, otherwise the default IP that rebulids this mobile subscriber's correspondence connects carrying.

Alternatively, describedly connect carrying and specifically comprise for the mobile subscriber sets up corresponding default IP:

The MME/UPE of gradual network system selects a mobile anchor point InterASAnchor according to mobile subscriber's CAMEL-Subscription-Information, system configuration strategy and mobile subscriber's request;

The mobile anchor point InterASAnchor of described selection gives this mobile subscriber's distributing IP address;

For the mobile subscriber sets up the user plane path of the UPE of gradual network system to mobile anchor point.

The MME/UPE of gradual network system directly gives this mobile subscriber's distributing IP address according to mobile subscriber's CAMEL-Subscription-Information, system configuration strategy and mobile subscriber's request;

For this mobile subscriber sets up the user plane path of the UPE of gradual network system to mobile anchor point.

Wherein, gradual network system described in the step b carries out register update to the HSS of mobile user affiliation and specifically comprises:

The MME/UPE of b1, gradual network system obtains described mobile subscriber's permanent identification;

B2, according to described mobile subscriber's permanent identification, the MME/UPE of gradual network system is registered as this mobile subscriber's of current service MME/UPE to the HSS of mobile user affiliation.

Alternatively, the permanent identification that obtains the mobile subscriber among the step b1 specifically comprises:

The MME/UPE of gradual network system sends the mobile subscriber identifier temporary mark to the SGSN of 2G/3G system;

The MME/UPE that the SGSN of 2G/3G system returns to gradual network system according to the mobile subscriber identifier temporary mark comprises the user's context of this mobile subscriber's permanent identification;

The MME/UPE of gradual network system obtains this mobile subscriber's permanent identification from described user's context.

The MME/UPE of gradual network system sends the identification request to the mobile subscriber;

The mobile subscriber returns this mobile subscriber's permanent identification to gradual network system.

The SGSN of 2G/3G system inquires about this mobile subscriber's user's context failure according to the mobile subscriber identifier temporary mark or the MME/UPE of gradual network system does not receive replying of the SGSN of 2G/3G system;

Wherein, specifically comprise to the MME/UPE that the HSS of user attaching is registered as this mobile subscriber of current service according to user's permanent identification described in the step b2:

The MME/UPE of gradual network system initiates register update according to user's permanent identification to HSS;

HSS indicates the SGSN of 2G/3G system deletion user's context then with the MME/UPE that the MME/UPE of gradual network system is registered as service-user;

HSS returns accreditation verification to the MME/UPE of gradual network system, and user signing contract information is sent to the MME/UPE of gradual network system.

Alternatively, also comprise after the step b1:

Gradual network system MME/UPE initiates the safety certification to mobile subscriber or mobile subscriber terminal equipment.

Wherein, steps d specifically comprises:

The MME/UPE of gradual network system accepts mobile subscriber's register requirement, return to the temporary identity sign that mobile subscriber terminal distributes for this mobile subscriber, connect carrying if this mobile subscriber newly sets up default IP, then newly assigned IP address also returns to this mobile subscriber terminal;

After mobile subscriber terminal received that the temporary identity of the MME/UPE distribution of gradual network system identifies, to the MME/UPE of gradual network system loopback acknowledge message, the temporary identity sign that the MME/UPE of indication gradual network system distributes came into force.

Correspondingly, the method that another kind of mobile subscriber of the present invention is switched between different access systems is used for being linked into gradual network system from the switching of 2G/3G system under mobile subscriber's idle condition, and this method mainly comprises:

The default IP connection carrying of this user's correspondence is set up or upgraded to B, gradual network system;

C, gradual network system carry out register update to the HSS of mobile user affiliation;

Wherein, step B specifically comprises:

B2, gradual network system judge whether that the default IP that sets up this mobile subscriber's correspondence connects carrying, if be judged as are, the default IP that then upgrades this mobile subscriber's correspondence connects carrying, otherwise the default IP that rebulids this mobile subscriber's correspondence connects carrying.

The MME/UPE that the SGSN of 2G/3G system inquires about this mobile subscriber's user's context failure or gradual network system according to the mobile subscriber identifier temporary mark does not receive the replying of SGSN of 2G/3G system;

Alternatively, also comprise after the step B1:

Alternatively, for setting up corresponding default IP connection carrying, the mobile subscriber specifically comprises described in the step B2:

The MME/UPE of gradual network system selects a mobile anchor point InterASAnchor according to system configuration strategy and mobile subscriber's request;

The MME/UPE of gradual network system directly gives this mobile subscriber's distributing IP address according to system configuration strategy and mobile subscriber's request;

Wherein, step C specifically comprises:

Gradual network system is according to described mobile subscriber's permanent identification, and the MME/UPE of gradual network system is registered as this mobile subscriber's of current service MME/UPE to the HSS of mobile user affiliation.

Wherein, describedly specifically comprise to the MME/UPE that the HSS of user attaching is registered as this mobile subscriber of current service according to user's permanent identification:

HSS indicates the SGSN of 2G/3G system to delete user's context the MME/UPE that the MME/UPE of gradual network system is registered as service-user then;

Wherein, step D specifically comprises:

The MME/UPE of gradual network system accepts mobile subscriber's register requirement, return to the temporary identity sign that mobile subscriber terminal distributes for this mobile subscriber, connect carrying if the mobile subscriber newly sets up default IP, then newly assigned IP address also returns to this mobile subscriber terminal;

Correspondingly, the method that another kind of mobile subscriber of the present invention is switched between different access systems, be used for being linked into gradual network system from the switching of 2G/3G system under mobile subscriber's idle condition, the SGSN of described 2G/3G system and the MME of gradual network system are integrated in same entity, and this method mainly comprises:

S1, mobile subscriber terminal are initiated network registry to gradual network system;

The default IP connection carrying of this user's correspondence is set up or upgraded to s2, gradual network system;

S3, gradual network system are accepted mobile subscriber's register requirement and are finished system's switching.

Alternatively, for setting up corresponding default IP connection carrying, the mobile subscriber specifically comprises described in the step s2:

The MME/UPE of gradual network system selects a mobile anchor point InterASAnchor according to mobile subscriber's CAMEL-Subscription-Information, system configuration strategy and mobile subscriber's request or according to system configuration strategy and mobile subscriber's request;

The MME/UPE of gradual network system directly gives this mobile subscriber's distributing IP address according to mobile subscriber's CAMEL-Subscription-Information, system configuration strategy and mobile subscriber's request or according to system configuration strategy and mobile subscriber's request;

Wherein, step s3 specifically comprises:

Correspondingly, the method that a kind of mobile subscriber of the present invention is switched between different access systems is used for being linked into the 2G/3G system from the gradual network system switching that inserts under mobile subscriber's idle condition, and this method mainly comprises:

S1, mobile subscriber terminal are initiated network registry to the 2G/3G system;

S2,2G/3G system carry out register update to the HSS of mobile user affiliation;

The default IP of S3, this mobile subscriber's correspondence of 2G/3G system update connects carrying;

S4,2G/3G system accept mobile subscriber's register requirement and finish system's switching.

Wherein, 2G/3G system described in the step S2 carries out register update to the HSS of mobile user affiliation and specifically comprises:

The SGSN of S21,2G/3G system obtains described mobile subscriber's permanent identification;

S22, according to described mobile subscriber's permanent identification, the SGSN of 2G/3G system is registered as the SGSN of this mobile subscriber's of current service 2G/3G system to the HSS of mobile user affiliation.

Alternatively, the permanent identification that obtains the mobile subscriber among the step S21 specifically comprises:

The SGSN of 2G/3G system sends the mobile subscriber identifier temporary mark to the MME/UPE of gradual network system;

The SGSN that the MME/UPE of gradual network system returns to the 2G/3G system according to the mobile subscriber identifier temporary mark comprises the user's context of this mobile subscriber's permanent identification;

The SGSN of 2G/3G system obtains this mobile subscriber's permanent identification from described user's context.

The SGSN of 2G/3G system sends the identification request to the mobile subscriber;

The mobile subscriber returns this mobile subscriber's permanent identification to the SGSN of 2G/3G system.

The SGSN that the MME/UPE of gradual network system inquires about this mobile subscriber's user's context failure or 2G/3G system according to the mobile subscriber identifier temporary mark does not receive the replying of MME/UPE of gradual network system;

Wherein, specifically comprise to the SGSN that the HSS of user attaching is registered as this mobile subscriber's of current service 2G/3G system according to user's permanent identification described in the step S22:

The SGSN of 2G/3G system initiates register update according to user's permanent identification to HSS;

HSS indicates the MME/UPE of gradual network system to delete user's context the SGSN that the SGSN of 2G/3G system is registered as the 2G/3G system of service-user then;

HSS returns accreditation verification to the SGSN of 2G/3G system, and user signing contract information is sent to the SGSN of 2G/3G system.

Alternatively, also comprise after the step S21:

The SGSN of 2G/3G system initiates the safety certification to mobile subscriber or mobile subscriber terminal equipment.

Wherein, step S4 specifically comprises:

The SGSN of 2G/3G system accepts mobile subscriber's register requirement, returns to the temporary identity sign that mobile subscriber terminal distributes for this mobile subscriber;

After mobile subscriber terminal received that the temporary identity of the SGSN distribution of 2G/3G system identifies, to the SGSN of 2G/3G system loopback acknowledge message, the temporary identity sign that the SGSN distribution of 2G/3G system is drilled in indication came into force.

Compared with prior art, the present invention has following beneficial effect:

The mobile subscriber switches to the future evolution network LTE/SAE systematic procedure in idle condition among the present invention from the 2G/3G system, comprise a process of setting up or upgrade default IP connection carrying for the mobile subscriber, after the 2G/3G system switches to future evolution network LTE/SAE system, may not have the situation of default IP connection to occur with the mobile subscriber who avoids idle condition.Based on this, the present invention can guarantee at first the mobile subscriber in the 2G/3G system registry, after under idle condition, switching to future evolution network LTE/SAE system, necessarily have default IP and connect carrying, thereby when this mobile subscriber terminal need start number biography business, network can provide response faster, and this mobile subscriber terminal can carry out the transition to several biography states from idle condition quickly.

Description of drawings

Fig. 1 is the handling process schematic diagram that the mobile subscriber switches to future evolution network LTE/SAE system under the prior art idle condition from the 2G/3G system;

Fig. 2 is the handling process schematic diagram that the mobile subscriber switches to inter-system switching method first embodiment of future evolution network LTE/SAE system under the idle condition of the present invention from the 2G/3G system;

Fig. 3 is that the mobile subscriber switches to inter-system switching method first embodiment of future evolution network LTE/SAE system from the 2G/3G system under the idle condition of the present invention, adopts 3GPP GTP technology to set up the handling process schematic diagram that default IP connects carrying;

Fig. 4 is the handling process schematic diagram that the mobile subscriber switches to inter-system switching method second embodiment of future evolution network LTE/SAE system under the idle condition of the present invention from the 2G/3G system;

Fig. 5 is the handling process schematic diagram that the mobile subscriber switches to inter-system switching method the 3rd embodiment of future evolution network LTE/SAE system under the idle condition of the present invention from the 2G/3G system;

Fig. 6 is that the mobile subscriber switches to inter-system switching method the 3rd embodiment of future evolution network LTE/SAE system from the 2G/3G system under the idle condition of the present invention, adopts 3GPP GTP technology to set up the handling process schematic diagram that default IP connects carrying;

Fig. 7 is the handling process schematic diagram that the mobile subscriber switches to inter-system switching method the 4th embodiment of future evolution network LTE/SAE system under the idle condition of the present invention from the 2G/3G system;

Fig. 8 is the handling process schematic diagram that the mobile subscriber switches to inter-system switching method the 5th embodiment of future evolution network LTE/SAE system under the idle condition of the present invention from the 2G/3G system;

Fig. 9 is the handling process schematic diagram that the mobile subscriber switches to inter-system switching method the 6th embodiment of future evolution network LTE/SAE system under the idle condition of the present invention from the 2G/3G system;

Figure 10 is the handling process schematic diagram that the mobile subscriber switches to inter-system switching method the 7th embodiment of future evolution network LTE/SAE system under the idle condition of the present invention from the 2G/3G system;

Figure 11 is the handling process schematic diagram that the mobile subscriber switches to inter-system switching method first embodiment of 2G/3G system under the idle condition of the present invention from future evolution network LTE/SAE system;

Figure 12 is the handling process schematic diagram that the mobile subscriber switches to inter-system switching method second embodiment of 2G/3G system under the idle condition of the present invention from future evolution network LTE/SAE system;

Figure 13 is the handling process schematic diagram that the mobile subscriber switches to inter-system switching method the 3rd embodiment of 2G/3G system under the idle condition of the present invention from future evolution network LTE/SAE system.

Embodiment

Core of the present invention is that the mobile subscriber switches to the future evolution network LTE/SAE systematic procedure in idle condition from the 2G/3G system, comprise a process of setting up or upgrade default IP connection carrying for the mobile subscriber, described foundation or the default IP that upgrades the mobile subscriber connect load bearing process can be in future evolution network LTE/SAE system before the HSS of user attaching carries out register update, also can be in future evolution network LTE/SAE system after the HSS of user attaching carries out register update.Owing in mobile subscriber's connecting system handoff procedure, increased the process that the default IP of this mobile subscriber connects carrying of setting up, can guarantee at first to be registered in the mobile subscriber of 2G/3G system, after under idle condition, switching to future evolution network LTE/SAE system, have default IP and connect carrying, thereby when this mobile subscriber's terminal will start number biography business, network can provide response faster, this mobile subscriber's terminal also can carry out the transition to several biography states from idle condition quickly, is described in detail below.

Easy for describing, MME and UPE are drawn in together in the schematic diagram of the present invention, can not separate but do not get rid of.In addition, the network site of mobile anchor point does not influence applicability of the present invention, such as not getting rid of the possibility that mobile anchor point and UPE coexist as the consolidated network node.

With reference to figure 2, this figure is a kind of handling process schematic diagram that the mobile subscriber switches to inter-system switching method first embodiment of future evolution network LTE/SAE system under the idle condition of the present invention from the 2G/3G system.

The present embodiment net system switching process is the default IP connection carrying of just initiating to set up the user the MME/UPE of future evolution network LTE/SAE system is registered as this mobile subscriber's of service MME/UPE to the HSS of user attaching after, and concrete net system switching process comprises the steps:

Step s101, registered in the 2G/3G system, and the mobile subscriber terminal MS that is in the Idle state selects an access net system.

Step s102, the result of mobile subscriber terminal MS access network selection has triggered the change of this mobile subscriber's connecting system from the 2G/3G system to future evolution network LTE/SAE system, mobile subscriber terminal MS sends the temporary identity sign and can identify the MME/UPE of the parameter information of 2G/3G SGSN to future evolution network LTE/SAE system, registers in new connecting system.If mobile subscriber terminal MS does not also obtain default IP connection carrying in the 2G/3G system before this, this mobile subscriber terminal MS can carry application and set up the parameter information that default IP connection carrying needs in register requirement, such as default IP connect the corresponding APN of carrying (Access Ponit Name, APN), the IP address of customer requirements etc.

Step s103, the MME/UPE of future evolution network LTE/SAE system derive the address of 2G/3G SGSN according to the parameter information in the login request message of receiving, and this mobile subscriber's temporary identity sign is sent to 2G/3G SGSN.

Step s104,2G/3G SGSN is according to the user's context of this mobile subscriber's temporary identity mark location to this mobile subscriber, and this mobile subscriber's user's context is sent to the MME/UPE of future evolution network LTE/SAE system, wherein user's context comprises this mobile subscriber's permanent identification and other information, such as security parameter and user's face IP beared information of having set up etc.

Alternatively, at step s105, the MME/UPE of future evolution network LTE/SAE system may initiate safety certification to portable terminal or mobile subscriber according to the configuration of operator, such as authentication etc.

Step s106, the MME/UPE of future evolution network LTE/SAE system is according to this mobile subscriber's permanent identification, the HSS of this mobile user affiliation of addressing, and own to the HSS of this mobile user affiliation registration for the MME/UPE of service is provided as this mobile subscriber of forward direction.

Step s107, the HSS indication 2G/3G SGSN of this mobile user affiliation deletes this mobile subscriber's user's context.

Step s108, the HSS of this mobile user affiliation confirms user registration success to the MME/UPE of future evolution network LTE/SAE system, user's subscription data is also sent to the MME/UPE of future evolution network LTE/SAE system by HSS in said process.

Step s109, if the user does not connect carrying because also obtain default IP in the 2G/3G system before switching, need connect carrying for this mobile subscriber newly sets up a default IP, then the MME/UPE of future evolution network LTE/SAE system can select a mobile anchor point InterASAnchor, concrete choice mechanism can continue the APN mechanism of present 3GPP, does not do here to limit and discuss.

Step s110 connects carrying if the mobile subscriber requires newly to set up a default IP, and mobile anchor point distributes a default IP address for this mobile subscriber, and network is set up the user plane path of the UPE of future evolution network system to mobile anchor point for this mobile subscriber then.Here the technology of Cai Yonging may be Mobile IP or its mutation Proxy Mobie IP, and the method that continues the GGSN distributing IP of present 3GPP.When continuing present GTP technology (as Fig. 3) or Proxy Mobile IP technology, the MME/UPE of future evolution network LTE/SAE system does not need with mobile subscriber terminal MS mutual; When adopting when needing technology that mobile subscriber terminal MS participates in such as Mobile IP is this, the MME/UPE of future evolution network LTE/SAE system then needs with mobile subscriber terminal MS mutual.MME/UPE and mobile subscriber terminal MS as the two-way dotted arrow sign future evolution network LTE/SAE system between the MME/UPE of future evolution network LTE/SAE system among Fig. 2 and the mobile subscriber terminal MS are mutual.

Need explanation,, then only need finish user's face routing update of mobile subscriber, set up the user plane path of this mobile subscriber's new UPE to mobile anchor point if existed a default IP to connect carrying before switching.In Fig. 3, upgrading the default IP that adopts the GTP technology to set up connects when carrying, the MME/UPE of future evolution network LTE/SAE system sends Update PDP Context Request message to mobile anchor point (step s110a), mobile anchor point response Update PDP Context Response message arrives the user's face routing update between original mobile anchor point and the 2G/3G SGSN between the MME/UPE of mobile anchor point and future evolution network LTE/SAE system (step s110b).

Step s111, the MME/UPE of future evolution network LTE/SAE system is notified to the evolution Access Network to the QoS configuration parameter that the IP that distributes for the mobile subscriber connects carrying, and Access Network may distribute and reserved resource for newly-established IP carrying.

Step s112, the MME/UPE notice mobile subscriber terminal MS of future evolution network LTE/SAE system, the mobile subscriber succeeds in registration, and notice mobile subscriber terminal core net is distributed new temporary identity sign for it; Prior process is that newly-established default IP connection IP address allocated also can be notified to mobile subscriber terminal.

Step s113, if portable terminal receives newly assigned temporary identity sign, portable terminal is confirmed to succeed in registration to the MME/UPE of future evolution network LTE/SAE system.

With reference to figure 4, this figure is a kind of handling process schematic diagram that the mobile subscriber switches to inter-system switching method second embodiment of future evolution network LTE/SAE system under the idle condition of the present invention from the 2G/3G system.

If the default IP of mobile subscriber connects carrying and does not need with reference to user signing contract information, distribute the strategy of this default IP address not rely on user signing contract information such as operator, in addition, consider that future might be the HSS that is stored in this mobile user affiliation for mobile subscriber's IP address allocated, so that called service addressing, if therefore the IP address can be distributed before the position is upgraded, just can consider the IP address utilize the position more new technological process be saved in HSS, then step s109～step s111 can advance between step s105 and the step s106 and carries out among Fig. 2, after promptly through safety certification checking, network just can connect carrying for the user sets up default IP, specifically mainly may further comprise the steps:

Step s201, registered in the 2G/3G system, and the mobile subscriber terminal MS that is in idle condition (Idle state) selects an access net system.

Step s202, the result of mobile subscriber terminal MS access network selection has triggered the change of connecting system from 2G/3G to future evolution network LTE/SAE system, this mobile subscriber terminal MS sends the temporary identity sign and can identify the MME/UPE of the parameter information of 2G/3G SGSN to future evolution network LTE/SAE system, registers in new connecting system.If mobile subscriber terminal MS does not also obtain default IP connection carrying in the 2G/3G system before this, this mobile subscriber terminal MS can carry application and set up the parameter information that default IP connection carrying needs in register requirement, connect the APN of carrying correspondence, the IP address of customer requirements etc. such as default IP.

Step s203, the MME/UPE of future evolution network LTE/SAE system derive the address of 2G/3G SGSN according to the parameter information in the login request message of receiving, and the customer temporary identity sign is sent to 2G/3G SGSN.

Step s204,2G/3G SGSN is according to the user's context of customer temporary identity mark location to the mobile subscriber, and this mobile subscriber's user's context is sent to the MME/UPE of future evolution network LTE/SAE system, wherein user's context comprises this mobile subscriber's permanent identification and other information, such as security parameter and user's face IP beared information of having set up etc.

Alternatively, at step s205, the MME/UPE of future evolution network LTE/SAE system is according to the configuration of operator, may initiate safety certification to mobile subscriber or mobile subscriber terminal, such as authentication etc.

Step s206, if the mobile subscriber does not connect carrying because also set up default IP in the 2G/3G system before switching, require newly to set up a default IP and connect carrying, then the MME/UPE of future evolution network LTE/SAE system need select a mobile anchor point InterASAnchor, concrete choice mechanism can continue the APN mechanism of present 3GPP, does not do here to limit and discuss.

Step s207 connects carrying if the mobile subscriber requires newly to set up a default IP, and mobile anchor point distributes an IP address for this mobile subscriber, and network is set up the user plane path of the UPE of future evolution network system to mobile anchor point for this mobile subscriber then.Equally, the technology of Cai Yonging may be Mobile IP or its mutation Proxy Mobie IP here, and the method that continues the GGSN distributing IP of present 3GPP.Specifically, repeat no more here with reference to above stated specification.

Step s208, the MME/UPE of future evolution network LTE/SAE system is notified to the evolution Access Network to the QoS configuration parameter that the IP that distributes for the mobile subscriber connects carrying, and Access Network may distribute and reserved resource for newly-established IP carrying.

Step s209, the MME/UPE of future evolution network LTE/SAE system be according to user's permanent identification, the HSS of this user attaching of addressing, and own to the HSS registration for the MME/UPE of service is provided as the forward direction mobile subscriber.

Step s210, this mobile subscriber's of deletion user's context among the HSS indication 2G/3G SGSN of this mobile user affiliation.

Step s211, the HSS of this mobile user affiliation confirms user registration success to the MME/UPE of future evolution network LTE/SAE system, user's subscription data is also sent to the MME/UPE of future evolution network LTE/SAE system by HSS in said process.

Step s212, the MME/UPE notice mobile subscriber terminal MS mobile subscriber of future evolution network LTE/SAE system succeeds in registration, and notice mobile subscriber terminal core net is distributed new temporary identity sign for it; The front is that newly-established default IP connection IP address allocated also can be notified to mobile subscriber terminal.

Step s213, if portable terminal receives newly assigned temporary identity sign, portable terminal is confirmed to succeed in registration to the MME/UPE of future evolution network LTE/SAE system.

Foregoing two embodiment are by Inter AS Anchor itself or inquire about Dynamic Host Configuration Protocol server by it mobile subscriber's terminal is carried out IP address assignment, and this function also can realize on the MME/UPE functional entity of future evolution network LTE/SAE system.

With reference to figure 5, this figure is a kind of handling process schematic diagram that the mobile subscriber switches to inter-system switching method the 3rd embodiment of future evolution network LTE/SAE system under the idle condition of the present invention from the 2G/3G system.

MME/UPE by future evolution network LTE/SAE system in the present embodiment carries out IP address assignment to mobile subscriber's terminal, specifically comprises the steps:

Step s301, registered in the 2G/3G system, and the mobile subscriber terminal MS that is in idle Idle state selects an access net system.

Step s302, the result of mobile subscriber terminal MS access network selection has triggered the change of this mobile subscriber's connecting system from the 2G/3G system to future evolution network LTE/SAE system, mobile subscriber terminal MS sends the temporary identity sign and can identify the MME/UPE of the parameter information of 2G/3G SGSN to future evolution network LTE/SAE system, registers in new connecting system.If mobile subscriber terminal MS does not also obtain default IP connection carrying in the 2G/3G system before this, this mobile subscriber terminal MS can carry application and set up the parameter information that default IP connection carrying needs in register requirement, connect the APN of carrying correspondence, the IP address of customer requirements etc. such as default IP.

Step s303, the MME/UPE of future evolution network LTE/SAE system derive the address of 2G/3G SGSN according to the parameter information in the login request message of receiving, and this mobile subscriber's temporary identity sign is sent to 2G/3G SGSN.

Step s304,2G/3G SGSN is according to the user's context of this mobile subscriber's temporary identity mark location to this mobile subscriber, and this mobile subscriber's user's context is sent to the MME/UPE of future evolution network LTE/SAE system, wherein user's context comprises this mobile subscriber's permanent identification and other information, such as security parameter and user's face IP beared information of having set up etc.

Alternatively, at step s305, the MME/UPE of future evolution network LTE/SAE system may initiate safety certification to portable terminal or mobile subscriber according to the configuration of operator, such as authentication etc.

Step s306, the MME/UPE of future evolution network LTE/SAE system is according to this mobile subscriber's permanent identification, the HSS of this mobile user affiliation of addressing, and own to the HSS of this mobile user affiliation registration for the MME/UPE of service is provided as this mobile subscriber of forward direction.

Step s307, this mobile subscriber's of deletion user's context among the HSS indication 2G/3G SGSN of this mobile user affiliation.

Step s308, the HSS of this mobile user affiliation confirms user registration success to the MME/UPE of future evolution network LTE/SAE system, user's subscription data is also sent to the MME/UPE of future evolution network LTE/SAE system by HSS in said process.

Step s309, if the user does not connect carrying because also obtain default IP in the 2G/3G system before switching, need connect carrying for this mobile subscriber newly sets up a default IP, then the MME/UPE of future evolution network LTE/SAE system can select a mobile anchor point InterASAnchor, concrete choice mechanism can continue the APN mechanism of present 3GPP, does not do here to limit and discuss.

Step s310, if customer requirements is newly set up a default IP, the MME/UPE of future evolution network LTE/SAE system asks an IP address to a Dynamic Host Configuration Protocol server for the user, if the MME/UPE of future evolution network LTE/SAE system itself is with regard to function with Dynamic Host Configuration Protocol server then do not need to the Dynamic Host Configuration Protocol server request of outside and oneself distributes an IP address for the user again.

Same, the technology that is adopted for user's distributing IP in the present embodiment can be Mobile IP or its mutation Proxy Mobie IP, and the method that continues the GGSN distributing IP of present 3GPP.When continuing present GTP technology (as Fig. 6) or Proxy Mobile IP technology, the MME/UPE of future evolution network LTE/SAE system does not need with mobile subscriber terminal MS mutual; When adopting when needing technology that mobile subscriber terminal MS participates in such as Mobile IP is this, the MME/UPE of future evolution network LTE/SAE system then needs with mobile subscriber terminal MS mutual.MME/UPE and mobile subscriber terminal MS as the two-way dotted arrow sign future evolution network LTE/SAE system between the MME/UPE of future evolution network LTE/SAE system among Fig. 5 and the mobile subscriber terminal MS are mutual.

Need explanation,, then only need finish user's face routing update of mobile subscriber, set up the user plane path of this mobile subscriber's new UPE to mobile anchor point if existed a default IP to connect carrying before switching.In Fig. 6, upgrading the default IP that adopts the GTP technology to set up connects when carrying, the MME/UPE of future evolution network LTE/SAE system sends Update PDP Context Request message to mobile anchor point (step s310a), mobile anchor point response Update PDP Context Response message arrives the user's face routing update between original mobile anchor point and the 2G/3G SGSN between the MME/UPE of mobile anchor point and future evolution network LTE/SAE system (step s310b).

Step s311, the MME/UPE of future evolution network LTE/SAE system is notified to the evolution Access Network to the QoS configuration parameter that the IP that distributes for the mobile subscriber connects carrying, and Access Network may distribute and reserved resource for newly-established IP carrying.

Step s312, the MME/UPE notice mobile subscriber terminal MS mobile subscriber of future evolution network LTE/SAE system succeeds in registration, and notice mobile subscriber terminal core net is distributed new temporary identity sign for it; The front is that newly-established default IP connection IP address allocated also can be notified to mobile subscriber terminal.

Step s313, if portable terminal receives newly assigned temporary identity sign, portable terminal is confirmed to succeed in registration to the MME/UPE of future evolution network LTE/SAE system.

With reference to figure 7, if user default IP connects carrying and does not need with reference to user signing contract information, distribute the strategy of this default IP address not rely on user signing contract information such as operator, in addition, consider that future might be the HSS that is stored in this mobile user affiliation for mobile subscriber's IP address allocated, so that called service addressing, if therefore the IP address can be distributed before the position is upgraded, just can consider the IP address utilize the position more new technological process be saved in HSS, then step s309～step s311 can advance between step s305 and the step s306 and carries out among Fig. 5, after promptly through safety certification checking, network just for can the user setting up default IP connection carrying, specifically may further comprise the steps:

Step s401, registered in the 2G/3G system, and the mobile subscriber terminal MS that is in idle Idle state selects an access net system.

Step s402, the result of mobile subscriber terminal MS access network selection has triggered the change of this mobile subscriber's connecting system from the 2G/3G system to future evolution network LTE/SAE system, mobile subscriber terminal MS sends the temporary identity sign and can identify the MME/UPE of the parameter information of 2G/3G SGSN to future evolution network LTE/SAE system, registers in new connecting system.If mobile subscriber terminal MS does not also obtain default IP connection carrying in the 2G/3G system before this, this mobile subscriber terminal MS can carry application and set up the parameter information that default IP connection carrying needs in register requirement, connect the APN of carrying correspondence, the IP address of customer requirements etc. such as default IP.

Step s403, the MME/UPE of future evolution network LTE/SAE system derive the address of 2G/3G SGSN according to the parameter information in the login request message of receiving, and this mobile subscriber's temporary identity sign is sent to 2G/3G SGSN.

Step s404,2G/3G SGSN is according to the user's context of this mobile subscriber's temporary identity mark location to this mobile subscriber, and this mobile subscriber's user's context is sent to the MME/UPE of future evolution network LTE/SAE system, wherein user's context comprises this mobile subscriber's permanent identification and other information, such as security parameter and user's face IP beared information of having set up etc.

Alternatively, at step s405, the MME/UPE of future evolution network LTE/SAE system may initiate safety certification to portable terminal or mobile subscriber according to the configuration of operator, such as authentication etc.

Step s406, if the mobile subscriber is not because also obtain default IP in the 2G/3G system before switching, need newly set up a default IP and connect carrying, then the MME/UPE of future evolution network LTE/SAE system can select a mobile anchor point InterASAnchor, concrete choice mechanism can continue the APN mechanism of present 3GPP, does not do here to limit and discuss.

Step s407, if newly setting up a default IP, customer requirements connects carrying, the MME/UPE of future evolution network LTE/SAE system asks an IP address to a Dynamic Host Configuration Protocol server for the user, if the MME/UPE of future evolution network LTE/SAE system itself is with regard to function with Dynamic Host Configuration Protocol server then do not need to the Dynamic Host Configuration Protocol server request of outside and oneself distributes an IP address for the user again, network is that default IP sets up user plane bearer.Here the technology of Cai Yonging may be Mobile IP or its mutation ProxyMobie IP, and the method that continues the GGSN distributing IP of present 3GPP.Specifically, repeat no more here with reference to above stated specification.

Step s408, the MME/UPE of future evolution network LTE/SAE system gives the evolution Access Network QoS configuration notification that the IP that distributes for the mobile subscriber connects carrying, and Access Network may distribute and reserved resource for newly-established IP carrying.

Step s409, the MME/UPE of future evolution network LTE/SAE system is according to this mobile subscriber's permanent identification, the HSS of this mobile user affiliation of addressing, and own to the HSS of this mobile user affiliation registration for the MME/UPE of service is provided as this mobile subscriber of forward direction.

Step s410, the HSS indication 2G/3G SGSN of this mobile user affiliation deletes this mobile subscriber's user's context.

Step s411, the HSS of this mobile user affiliation confirms user registration success to the MME/UPE of future evolution network LTE/SAE system, user's subscription data is also sent to the MME/UPE of future evolution network LTE/SAE system by HSS in said process.

Step s412, the MME/UPE notice mobile subscriber terminal MS mobile subscriber of future evolution network LTE/SAE system succeeds in registration, and notice mobile subscriber terminal core net is distributed new temporary identity sign for it; The front is that newly-established default IP connection IP address allocated also can be notified to mobile subscriber terminal.

Step s413, if portable terminal receives newly assigned temporary identity sign, portable terminal is confirmed to succeed in registration to the MME/UPE of future evolution network LTE/SAE system.

In addition, consider in the practical application, may be because a variety of causes, the MME/UPE of future evolution network LTE/SAE system is according to the parameter information in the login request message of receiving, can not be successfully before the user SGSN of the 2G/3G system of registration obtain user's context, such as: because the DNS data collocation error, DNS is busy, to the DNS path failure, dodge the SGSN address that reason such as break can not obtain the 2G/3G system; And the SGSN of 2G/3G system do not have response or the SGSN of 2G/3G system and inquires about user's context less than the mobile subscriber yet, returns failure so that to the request user's context procedure failure of the SGSN of 2G/3G system.

Also can initiate the identification request to mobile subscriber terminal among the present invention by the MME/UPE of gradual network system, return this mobile subscriber's permanent identification by the mobile subscriber terminal response, specifically, the MME/UPE of gradual network system can directly send the identification request to the mobile subscriber, and the mobile subscriber returns this mobile subscriber's permanent identification to gradual network system; Perhaps the MME/UPE of gradual network system at first sends the mobile subscriber identifier temporary mark to the SGSN of 2G/3G system, if the SGSN of 2G/3G system inquires about this mobile subscriber's user's context failure according to the mobile subscriber identifier temporary mark or the MME/UPE of gradual network system does not receive replying of the SGSN of 2G/3G system, the MME/UPE of gradual network system then sends the identification request to the mobile subscriber, and the mobile subscriber returns this mobile subscriber's permanent identification to gradual network system.

Describe with specific embodiment below.

With reference to figure 8, this figure is that the mobile subscriber switches to a kind of handling process schematic diagram of inter-system switching method the 5th embodiment of future evolution network LTE/SAE system from the 2G/3G system under the idle condition of the present invention, and idiographic flow is as follows:

Step s501, registered in the 2G/3G system, and the mobile subscriber terminal MS that is in the Idle state selects an access net system.

Step s502, the result of mobile subscriber terminal MS access network selection has triggered the change of this mobile subscriber's connecting system from the 2G/3G system to future evolution network LTE/SAE system, mobile subscriber terminal MS sends the temporary identity sign and can identify the MME/UPE of the parameter information of 2G/3G SGSN to future evolution network LTE/SAE system, registers in new connecting system.If mobile subscriber terminal MS does not also obtain default IP connection carrying in the 2G/3G system before this, this mobile subscriber terminal MS can carry application and set up the parameter information that default IP connection carrying needs in register requirement, such as default IP connect the corresponding APN of carrying (Access Ponit Name, APN), the IP address of customer requirements etc.

Step s503, the MME/UPE of future evolution network LTE/SAE system can't derive the address of 2G/3G SGSN owing to a variety of causes, initiate the identification request to portable terminal.

Step s504, portable terminal responds the request of future evolution network, returns mobile subscriber's permanent identification.

Step s505, the MME/UPE of future evolution network LTE/SAE system may initiate safety certification to portable terminal or mobile subscriber according to the configuration of operator, such as authentication etc.

Step s506, the MME/UPE of future evolution network LTE/SAE system is according to this mobile subscriber's permanent identification, the HSS of this mobile user affiliation of addressing, and own to the HSS of this mobile user affiliation registration for the MME/UPE of service is provided as this mobile subscriber of forward direction.

Step s507, the HSS indication 2G/3G SGSN of this mobile user affiliation deletes this mobile subscriber's user's context.

Step s508, the HSS of this mobile user affiliation confirms user registration success to the MME/UPE of future evolution network LTE/SAE system, user's subscription data is also sent to the MME/UPE of future evolution network LTE/SAE system by HSS in said process.

Step s509, if the user does not connect carrying because also obtain default IP in the 2G/3G system before switching, need connect carrying for this mobile subscriber newly sets up a default IP, then the MME/UPE of future evolution network LTE/SAE system can select a mobile anchor point InterASAnchor, concrete choice mechanism can continue the APN mechanism of present 3GPP, does not do here to limit and discuss.

Step s510, divide A and two kinds of situations of B:

A) connect carrying if the mobile subscriber requires newly to set up a default IP, mobile anchor point distributes a default IP address for this mobile subscriber, and network is set up the user plane path of the UPE of future evolution network system to mobile anchor point for this mobile subscriber then.With the scheme of front, the technology of Cai Yonging may be MobileIP or its mutation Proxy Mobie IP here, and the method that continues the GGSN distributing IP of present 3GPP.When continuing present GTP technology or Proxy Mobile IP technology, the MME/UPE of future evolution network LTE/SAE system does not need with mobile subscriber terminal MS mutual; When adopting when needing technology that mobile subscriber terminal MS participates in such as Mobile IP is this, the MME/UPE of future evolution network LTE/SAE system then needs with mobile subscriber terminal MS mutual.The MME/UPE and the mobile subscriber terminal MS of the two-way dotted arrow sign future evolution network LTE/SAE system between the MME/UPE of future evolution network LTE/SAE system and the mobile subscriber terminal MS are mutual.

B) if existed a default IP to connect carrying before switching, then only need finish user's face routing update of mobile subscriber, set up the user plane path of this mobile subscriber's new UPE to mobile anchor point.Upgrading the default IP that adopts the GTP technology to set up connects when carrying, the MME/UPE of future evolution network LTE/SAE system sends Update PDP Context Request message to mobile anchor point, mobile anchor point response Update PDP Context Response message arrives the user's face routing update between the SGSN of original mobile anchor point and 2G/3G system between the MME/UPE of mobile anchor point and future evolution network LTE/SAE system

Step s5 11, and the MME/UPE of future evolution network LTE/SAE system is notified to the evolution Access Network to the QoS configuration parameter that the IP that distributes for the mobile subscriber connects carrying, and Access Network may distribute and reserved resource for newly-established IP carrying.

Step s512, the MME/UPE notice mobile subscriber terminal MS of future evolution network LTE/SAE system, the mobile subscriber succeeds in registration, and notice mobile subscriber terminal core net is distributed new temporary identity sign for it; Default IP connects if prior process is for the mobile subscriber has newly set up, and then IP address allocated also can be notified to mobile subscriber terminal.

Step s513, if portable terminal receives newly assigned temporary identity sign, portable terminal is confirmed to succeed in registration to the MME/UPE of future evolution network LTE/SAE system.

With reference to above stated specification, if user default IP connects the CAMEL-Subscription-Information that does not need with reference to the user, distribute the strategy of this default IP address not rely on such as operator and use CAMEL-Subscription-Information, then step s509～s511 can be put between step s505 and the step s506 in advance among Fig. 8, after promptly checking by security process, network just connects for the user sets up default IP.Consider that future might be for user's IP address allocated need be stored in HSS so that the called service addressing, if therefore the IP address can distribution before the position is upgraded, just can consider the IP address utilize the position more new technological process be saved in HSS.

The foregoing description description simultaneously is by Inter AS Anchor itself or inquires about Dynamic Host Configuration Protocol server by it mobile subscriber's terminal is carried out IP address assignment, and this function also can realize on the MME/UPE functional entity of future evolution network LTE/SAE system.

MME/UPE by gradual network system in the present embodiment directly carries out identification to mobile subscriber terminal, obtain mobile subscriber's permanent identification, need illustrate, describedly directly carry out identification to mobile subscriber terminal, obtain the mobile subscriber permanent identification method also can according to aforementioned distribution with set up the opportunity that IP is connected, 4 kinds of application scenarioss of combination results such as method of distributing IP, no longer specifically describe here.

With reference to figure 9, this figure is that the mobile subscriber switches to a kind of handling process schematic diagram of inter-system switching method the 6th embodiment of future evolution network LTE/SAE system from the 2G/3G system under the idle condition of the present invention, and idiographic flow is as follows:

Step s601, registered in the 2G/3G system, and the mobile subscriber terminal MS that is in the Idle state selects an access net system.

Step s602, the result of mobile subscriber terminal MS access network selection has triggered the change of this mobile subscriber's connecting system from the 2G/3G system to future evolution network LTE/SAE system, mobile subscriber terminal MS sends the temporary identity sign and can identify the MME/UPE of the parameter information of 2G/3G SGSN to future evolution network LTE/SAE system, registers in new connecting system.If mobile subscriber terminal MS does not also obtain default IP connection carrying in the 2G/3G system before this, this mobile subscriber terminal MS can carry application and set up the parameter information that default IP connection carrying needs in register requirement, such as default IP connect the corresponding APN of carrying (Access Ponit Name, APN), the IP address of customer requirements etc.

Step s603a, the MME/UPE of future evolution network LTE/SAE system derive the address of 2G/3G SGSN according to the parameter information in the login request message of receiving, and this mobile subscriber's temporary identity sign is sent to 2G/3G SGSN.

Step s603b, because a variety of causes, the MME/UPE of future evolution network LTE/SAE system does not receive replying of 2G/3G SGSN, perhaps 2G/3G SGSN replys the context failure that the mobile subscriber is obtained in indication.Be the context that the MME/UPE of future evolution network LTE/SAE system does not have successfully to obtain from 2G/3GSGSN the user,

Step s604a, the MME/UPE of future evolution network LTE/SAE system initiates the identification request to portable terminal.

Step s604b, portable terminal responds the request of future evolution network, returns mobile subscriber's permanent identification.

Step s605, the MME/UPE of future evolution network LTE/SAE system may initiate safety certification to portable terminal or mobile subscriber according to the configuration of operator, such as authentication etc.

Step s606, the MME/UPE of future evolution network LTE/SAE system is according to this mobile subscriber's permanent identification, the HSS of this mobile user affiliation of addressing, and own to the HSS of this mobile user affiliation registration for the MME/UPE of service is provided as this mobile subscriber of forward direction.

Step s607, the HSS indication 2G/3G SGSN of this mobile user affiliation deletes this mobile subscriber's user's context.

Step s608, the HSS of this mobile user affiliation confirms user registration success to the MME/UPE of future evolution network LTE/SAE system, user's subscription data is also sent to the MME/UPE of future evolution network LTE/SAE system by HSS in said process.

Step s609, if the user does not connect carrying because also obtain default IP in the 2G/3G system before switching, need connect carrying for this mobile subscriber newly sets up a default IP, then the MME/UPE of future evolution network LTE/SAE system can select a mobile anchor point InterASAnchor, concrete choice mechanism can continue the APN mechanism of present 3GPP, does not do here to limit and discuss.

Step s610, divide A and two kinds of situations of B:

B) if existed a default IP to connect carrying before switching, then only need finish user's face routing update of mobile subscriber, set up the user plane path of this mobile subscriber's new UPE to mobile anchor point.Upgrading the default IP that adopts the GTP technology to set up connects when carrying, the MME/UPE of future evolution network LTE/SAE system sends Update PDP Context Request message to mobile anchor point, mobile anchor point response Update PDP Context Response message arrives the user's face routing update between original mobile anchor point and the 2G/3G SGSN between the MME/UPE of mobile anchor point and future evolution network LTE/SAE system

Step s611, the MME/UPE of future evolution network LTE/SAE system is notified to the evolution Access Network to the QoS configuration parameter that the IP that distributes for the mobile subscriber connects carrying, and Access Network may distribute and reserved resource for newly-established IP carrying.

Step s612, the MME/UPE notice mobile subscriber terminal MS of future evolution network LTE/SAE system, the mobile subscriber succeeds in registration, and notice mobile subscriber terminal core net is distributed new temporary identity sign for it; Default IP connects if prior process is for the mobile subscriber has newly set up, and then IP address allocated also can be notified to mobile subscriber terminal.

Step s613, if portable terminal receives newly assigned temporary identity sign, portable terminal is confirmed to succeed in registration to the MME/UPE of future evolution network LTE/SAE system.

With reference to above stated specification, if user default IP connects the CAMEL-Subscription-Information that does not need with reference to the user, distribute the strategy of this default IP address not rely on such as operator and use CAMEL-Subscription-Information, then step s609～step s611 can be put between step s605 and the step s606 in advance among Fig. 9, after promptly checking by security process, network just connects for the user sets up default IP.Consider that future might be for user's IP address allocated need be stored in HSS so that the called service addressing, if therefore the IP address can distribution before the position is upgraded, just can consider the IP address utilize the position more new technological process be saved in HSS.

MME/UPE by gradual network system in the present embodiment is after the SGSN of 2G/3G system inquiry failure, just carry out identification to mobile subscriber terminal, obtain mobile subscriber's permanent identification, need illustrate, described after the SGSN of 2G/3G system inquiry failure, carry out identification to mobile subscriber terminal, obtain the mobile subscriber permanent identification method also can according to aforementioned distribution with set up the opportunity that IP is connected, 4 kinds of application scenarioss of combination results such as method of distributing IP, no longer specifically describe here.

In the practical application, the SGSN of 2G/3G system and the MME of gradual network system may be integrated in same entity, when the SGSN of 2G/3G system and the MME of gradual network system are integrated under the situation of same entity, the MME/UPE of gradual network system does not need to remove to obtain mobile subscriber's user's context to the SGSN of 2G/3G system, because the function of the SGSN of the 2G/3G system of preservation mobile subscriber's user's context is also in same entity, so directly can get final product to user's context according to user's temporary identity mark location, under this kind application scenarios, when mobile subscriber's travelling carriage after gradual network system is initiated network registry; The default IP connection carrying of this user's correspondence is set up or upgraded to gradual network system; The register requirement that last gradual network system is accepted the mobile subscriber is promptly finished system's switching, is elaborated below.

With reference to Figure 10, this figure is that the mobile subscriber switches to a kind of handling process schematic diagram of inter-system switching method the 7th embodiment of future evolution network LTE/SAE system from the 2G/3G system under the idle condition of the present invention, and idiographic flow is as follows:

Step s701, registered in the 2G/3G system, and the mobile subscriber terminal MS that is in idle Idle state selects an access net system.

Step s702, the result of mobile subscriber terminal MS access network selection has triggered the change of this mobile subscriber's connecting system from the 2G/3G system to future evolution network LTE/SAE system, mobile subscriber terminal MS sends the temporary identity sign and can identify the MME/UPE of the parameter information of 2G/3G SGSN to future evolution network LTE/SAE system, registers in new connecting system.If mobile subscriber terminal MS does not also obtain default IP connection carrying in the 2G/3G system before this, this mobile subscriber terminal MS can carry application and set up the parameter information that default IP connection carrying needs in register requirement, connect the APN of carrying correspondence, the IP address of customer requirements etc. such as default IP.

Alternatively, in step 703, the MME/UPE of future evolution network LTE/SAE system may initiate safety certification to portable terminal or mobile subscriber according to the configuration of operator, such as authentication etc.

Step s704, if the user does not connect carrying because also obtain default IP in the 2G/3G system before switching, need connect carrying for this mobile subscriber newly sets up a default IP, then the MME/UPE of future evolution network LTE/SAE system can select a mobile anchor point InterASAnchor, concrete choice mechanism can continue the APN mechanism of present 3GPP, does not do here to limit and discuss.

Step s705, step 706, set up or upgrade the default IP connection of mobile subscriber's correspondence, connect carrying for the default IP that newly sets up mobile subscriber's correspondence, can be by the MME/UPE of gradual network system CAMEL-Subscription-Information according to the mobile subscriber, system configuration strategy and mobile subscriber's request or according to system configuration strategy and mobile subscriber's request, select a mobile anchor point InterASAnchor, mobile anchor point InterASAnchor by described selection gives this mobile subscriber's distributing IP address then, sets up the user plane path of the UPE of gradual network system to mobile anchor point for this mobile subscriber at last;

Perhaps by the MME/UPE of gradual network system according to mobile subscriber's CAMEL-Subscription-Information, system configuration strategy and mobile subscriber's request or according to system configuration strategy and mobile subscriber's request, directly give this mobile subscriber's distributing IP address, set up the user plane path of the UPE of gradual network system for this mobile subscriber then to mobile anchor point.

During specific implementation, if customer requirements is newly set up a default IP, the MME/UPE of future evolution network LTE/SAE system can ask an IP address for the user to a Dynamic Host Configuration Protocol server, if the MME/UPE of future evolution network LTE/SAE system itself is with regard to function with Dynamic Host Configuration Protocol server then do not need to the Dynamic Host Configuration Protocol server request of outside and oneself distributes an IP address for the user again.

If existed a default IP to connect carrying before switching, then only need finish user's face routing update of mobile subscriber, set up the user plane path of this mobile subscriber's new UPE to mobile anchor point.

Step s706, the MME/UPE of future evolution network LTE/SAE system is notified to the evolution Access Network to the QoS configuration parameter that the IP that distributes for the mobile subscriber connects carrying, and Access Network may distribute and reserved resource for newly-established IP carrying.

The MME/UPE notice mobile subscriber terminal MS mobile subscriber of step s707 future evolution network LTE/SAE system succeeds in registration, and notice mobile subscriber terminal core net is distributed new temporary identity sign for it; The front is that newly-established default IP connection IP address allocated also can be notified to mobile subscriber terminal.

Step s708, if portable terminal receives newly assigned temporary identity sign, portable terminal is confirmed to succeed in registration to the MME/UPE of future evolution network LTE/SAE system.

Based on to the SAE/LTE system, changing flow process from 2G/3G under the above-mentioned Idle state, also disclose under the Idle state among the present invention and to the 2G/3G system, changed flow process from SAE/LET, its difference is the SGSN of 2G/3G system and the MME/UPE role reversal of SAE, there has not been the possible process of newly setting up a default IP carrying for the user simultaneously, specifically with reference to Figure 11, Figure 12 and Figure 13.

With reference to Figure 11, under the Idle state from SAE/LET to the first embodiment idiographic flow that changes the 2G/3G system, specifically mainly may further comprise the steps:

Step s801, registered in the LTE/SAE system, and the MS that is in the Idle state selects an access net system.

Step s802, the result of access network selection have triggered the change of connecting system from LTE/SAE to 2G/3G, and MS sends the temporary identity sign and can identify the SGSN of the parameter information of MME/UPE to the 2G/3G system, registers in new connecting system.

Step s803, the SGSN of 2G/3G system derive the address of MME/UPE according to the parameter in the login request message of receiving, and the customer temporary identity sign is sent to MME/UPE.

Step s804, MME/UPE navigates to user's context, and user's context sent to the SGSN of 2G/3G system, user's context comprises permanent identification and other information of user, such as security parameter and user's face IP beared information of having set up etc.

Step s805, the SGSN of 2G/3G system may initiate safe procedures to portable terminal or mobile subscriber according to the configuration of operator, such as authentication etc.

Step s806, the SGSN of 2G/3G system be according to user's permanent identification, the HSS of addressed user ownership, and own to the HSS registration for the SGSN of the 2G/3G system of service is provided as the forward direction mobile subscriber.

Step s807, HSS indication MME/UPE deletion user's context.

Step s808, HSS confirms user registration success to the SGSN of 2G/3G system, and user's subscription data is issued the SGSN of 2G/3G system.

Step s809 finishes the renewal of user's face route, promptly the user's face routing update between original mobile anchor point and the MME/UPE is arrived between the SGSN of mobile anchor point and 2G/3G system.

Step s810, the SGSN notice mobile subscriber terminal of 2G/3G system, the mobile subscriber succeeds in registration, and notice mobile subscriber terminal core net is distributed new temporary identity sign for it.

Step s811, if mobile subscriber terminal receives newly assigned temporary identity sign, portable terminal is confirmed to succeed in registration.

With reference to Figure 12, under the Idle state from SAE/LET to the second embodiment idiographic flow that changes the 2G/3G system, specifically mainly may further comprise the steps:

Step s901 has been registered in the LTE/SAE system, and is in access net system of mobile subscriber terminal MS selection of Idle state.

Step s902, the result of access network selection have triggered the change of connecting system from LTE/SAE to 2G/3G, and mobile subscriber terminal MS sends the temporary identity sign and can identify the SGSN of the parameter information of MME/UPE to the 2G/3G system, registers in new connecting system.

Step s903, because a variety of causes,, the SGSN of 2G/3G system can't derive the address of the MME/UPE of future evolution network LTE/SAE system, and the SGSN of 2G/3G system initiates the identification request to portable terminal.

Step s904, portable terminal responds the request of the SGSN of 2G/3G system, returns mobile subscriber's permanent identification.

Step s905, the SGSN of 2G/3G system may initiate safe procedures to portable terminal or mobile subscriber according to the configuration of operator, such as authentication etc.

Step s906, the SGSN of 2G/3G system be according to user's permanent identification, the HSS of addressed user ownership, and own to the HSS registration for the SGSN. of the 2G/3G system of service is provided as the forward direction mobile subscriber

Step s907, the user's context among the HSS deletion gradual network system MME/UPE.

Step s908, HSS confirms user registration success to the SGSN of 2G/3G system, user's subscription data also is inserted into the SGSN of 2G/3G system by HSS in said process.

Step s909 finishes the renewal of user's face route, promptly the user's face routing update between original mobile anchor point and the MME/UPE is arrived between the SGSN of mobile anchor point and 2G/3G system.

Step s910, the SGSN notice portable terminal of 2G/3G system, the mobile subscriber succeeds in registration, and notice portable terminal core net is distributed new temporary identity sign for it.

Step s911, if portable terminal receives newly assigned temporary identity sign, portable terminal is confirmed to succeed in registration.

With reference to Figure 13, under the Idle state from SAE/LET to the 3rd embodiment idiographic flow that changes the 2G/3G system, specifically mainly may further comprise the steps:

Step s1001 has been registered in the LTE/SAE system, and is in access net system of mobile subscriber terminal MS selection of Idle state.

Step s1002, the result of access network selection has triggered the change of connecting system from LTE/SAE to 2G/3G, mobile subscriber terminal MS sends the temporary identity sign and can identify the SGSN of the parameter information of MME/UPE to the 2G/3G system, registers in new connecting system.

Step s1003a, the SGSN of 2G/3G system is according to the parameter information in the login request message of receiving, derive the address of the MME/UPE of future evolution network LTE/SAE system, and this mobile subscriber's temporary identity sign is sent to the MME/UPE of future evolution network LTE/SAE system.

Step s1003b, because a variety of causes, the SGSN of 2G/3G system does not receive the replying of MME/UPE of future evolution network LTE/SAE system, perhaps the MME/UPE of future evolution network LTE/SAE system replys the context failure that the mobile subscriber is obtained in indication.Be the context that the SGSN of 2G/3G system does not have successfully to obtain from the MME/UPE of future evolution network LTE/SAE system the user,

Step s1004a, the MME/UPE of the SGSN of 2G/3G system initiates the identification request to mobile subscriber terminal.

Step s1004b, portable terminal responds the request of the SGSN of 2G/3G system, returns mobile subscriber's permanent identification.

Step s1005,2G/3G SGSN may initiate safe procedures to portable terminal or mobile subscriber according to the configuration of operator, such as authentication etc.

Step s1006,2G/3G SGSN be according to user's permanent identification, the HSS of addressed user ownership, and own to the HSS registration for the 2G/3G SGSN. of service is provided as the forward direction mobile subscriber

Step s1007, the user's context among the HSS deletion MME/UPE.

Step s1008, HSS confirms user registration success to 2G/3G SGSN.User's subscription data also is inserted into 2G/3G SGSN by HSS in said process.

Step s1009 finishes the renewal of user's face route, promptly the user's face routing update between original mobile anchor point and the MME/UPE is arrived between mobile anchor point and the 2G/3G SGSN.

Step s1010,2G/3G SGSN notifies portable terminal, and the mobile subscriber succeeds in registration, and notice portable terminal core net is distributed new temporary identity sign for it.

Step s1011, if portable terminal receives newly assigned temporary identity sign, portable terminal is confirmed to succeed in registration.

The above only is a preferred implementation of the present invention, does not constitute the qualification to protection range of the present invention.Any any modification of being done within the spirit and principles in the present invention, be equal to and replace and improvement etc., all should be included within the claim protection range of the present invention.

Claims

1, the method switched between different access systems of a kind of mobile subscriber is used under mobile subscriber's idle condition switching from the 2G/3G system that inserts and is linked into gradual network system, it is characterized in that, comprising:

2, the method switched between different access systems of mobile subscriber according to claim 1 is characterized in that, sets up for the mobile subscriber described in the step c or upgrade corresponding default IP to connect carrying and specifically comprise:

3, the method switched between different access systems of mobile subscriber according to claim 2 is characterized in that, describedly connects carrying and specifically comprises for the mobile subscriber sets up corresponding default IP:

4, the method switched between different access systems of mobile subscriber according to claim 2 is characterized in that, describedly connects carrying and specifically comprises for the mobile subscriber sets up corresponding default IP:

5, the method for switching between different access systems according to each described mobile subscriber of claim 1-4 is characterized in that, gradual network system described in the step b carries out register update to the HSS of mobile user affiliation and specifically comprises:

6, the method switched between different access systems of mobile subscriber according to claim 5 is characterized in that the permanent identification that obtains the mobile subscriber among the step b1 specifically comprises:

7, the method switched between different access systems of mobile subscriber according to claim 5 is characterized in that the permanent identification that obtains the mobile subscriber among the step b1 specifically comprises:

8, the method switched between different access systems of mobile subscriber according to claim 5 is characterized in that the permanent identification that obtains the mobile subscriber among the step b1 specifically comprises:

9, the method switched between different access systems of mobile subscriber according to claim 5 is characterized in that, specifically comprises to the MME/UPE that the HSS of user attaching is registered as this mobile subscriber of current service according to user's permanent identification described in the step b2:

10, the method switched between different access systems of mobile subscriber according to claim 5 is characterized in that, also comprises after the step b1:

11, the method switched between different access systems of mobile subscriber according to claim 1 is characterized in that steps d specifically comprises:

12, the method switched between different access systems of a kind of mobile subscriber is used under mobile subscriber's idle condition switching from the 2G/3G system and is linked into gradual network system, it is characterized in that, comprising:

13, the method switched between different access systems of mobile subscriber according to claim 12 is characterized in that step B specifically comprises:

14, the method switched between different access systems of mobile subscriber according to claim 13 is characterized in that the permanent identification that obtains the mobile subscriber among the step B1 specifically comprises:

15, the method switched between different access systems of mobile subscriber according to claim 13 is characterized in that the permanent identification that obtains the mobile subscriber among the step B1 specifically comprises:

16, the method switched between different access systems of mobile subscriber according to claim 13 is characterized in that the permanent identification that obtains the mobile subscriber among the step B1 specifically comprises:

17, the method switched between different access systems of mobile subscriber according to claim 13 is characterized in that, also comprises after the step B1:

18, the method switched between different access systems of mobile subscriber according to claim 13 is characterized in that, connects carrying and specifically comprises for the mobile subscriber sets up corresponding default IP described in the step B2:

19, the method switched between different access systems of mobile subscriber according to claim 13 is characterized in that, connects carrying and specifically comprises for the mobile subscriber sets up corresponding default IP described in the step B2:

20, the method for switching between different access systems according to each described mobile subscriber of claim 13-19 is characterized in that step C specifically comprises:

21, the method switched between different access systems of mobile subscriber according to claim 20 is characterized in that, describedly specifically comprises to the MME/UPE that the HSS of user attaching is registered as this mobile subscriber of current service according to user's permanent identification:

22, the method switched between different access systems of mobile subscriber according to claim 12 is characterized in that step D specifically comprises:

23, the method between different access systems, switched of a kind of mobile subscriber, be used for being linked into gradual network system from the switching of 2G/3G system under mobile subscriber's idle condition, the SGSN of described 2G/3G system and the MME of gradual network system are integrated in same entity, it is characterized in that this method comprises:

24, the method switched between different access systems of mobile subscriber according to claim 23 is characterized in that, connects carrying and specifically comprises for the mobile subscriber sets up corresponding default IP described in the step s2:

25, the method switched between different access systems of mobile subscriber according to claim 23 is characterized in that, connects carrying and specifically comprises for the mobile subscriber sets up corresponding default IP described in the step s2:

26, the method for switching between different access systems according to each described mobile subscriber of claim 23-25 is characterized in that step s3 specifically comprises:

27, the method switched between different access systems of a kind of mobile subscriber is used under mobile subscriber's idle condition switching from the gradual network system that inserts and is linked into the 2G/3G system, it is characterized in that, comprising:

28, the method switched between different access systems of mobile subscriber according to claim 27 is characterized in that the system of 2G/3G described in the step S2 carries out register update to the HSS of mobile user affiliation and specifically comprises:

29, the method switched between different access systems of mobile subscriber according to claim 28 is characterized in that the permanent identification that obtains the mobile subscriber among the step S21 specifically comprises:

30, the method switched between different access systems of mobile subscriber according to claim 28 is characterized in that the permanent identification that obtains the mobile subscriber among the step S21 specifically comprises:

31, the method switched between different access systems of mobile subscriber according to claim 28 is characterized in that the permanent identification that obtains the mobile subscriber among the step S21 specifically comprises:

32, the method between different access systems, switched of mobile subscriber according to claim 28, it is characterized in that, specifically comprise to the SGSN that the HSS of user attaching is registered as this mobile subscriber's of current service 2G/3G system according to user's permanent identification described in the step S22:

33, the method switched between different access systems of mobile subscriber according to claim 28 is characterized in that, also comprises after the step S21:

34, the method for switching between different access systems according to each described mobile subscriber of claim 27-33 is characterized in that step S4 specifically comprises: