CN101052200A

CN101052200A - Route renewing method in mobile communication system

Info

Publication number: CN101052200A
Application number: CNA2006100348481A
Authority: CN
Inventors: 宗在峰; 朱文若
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2006-04-03
Filing date: 2006-04-03
Publication date: 2007-10-10
Anticipated expiration: 2026-04-03
Also published as: CN100473216C; WO2007112690A1

Abstract

The method comprises: 1) at idle state, after the mobile device re-selects the network, it sends a registration request message to the serving node at new network side; 2) serving node at new network side gets the information of mobile security association from the local or from the HSS of the mobile device, makes an authentication for the mobile device; the serving node at new network side sends the mobile IP registration request to the home agent of the mobile device; the home agent processes the mobile IP registration request message; 4) the serving node at new network side sends a registration confirmation message to the mobile device.

Description

Route renewing method in a kind of mobile communication system

Technical field

The present invention relates to the route renewing method in the mobile communication system.

Background technology

The system block diagram that the mobile IP of use of the prior art carries out routing update as shown in Figure 1, wherein:

SGSN (Serving GPRS supporting node, the GPRS service node): 2G/3G network packet domain-functionalities entity, be responsible for mobile management, session management, forwarding user data package, storage UE contextual information, produce temporary mark and it is distributed to UE, and be responsible for the user is carried out authentication etc.;

GGSN (Gateway GPRS Supporting Node, GPRS gateway node): 2G/3G network packet domain-functionalities entity, be responsible for session management, transmit user data package etc., be the borde gateway of 2G/3G network and external network;

MME (Mobility Management Entity, the mobile management node): the chain of command functional entity, be in charge of and store the UE context (such as the UE/ user ID, mobility management states, user security parameters etc.), produce temporary mark and it is distributed to UE, when UE quarters at this tracing area or this network is to be responsible for this user is carried out authentication;

UPE (User Plane Entity, user face nodes): the user plane functions entity, the user face data route is handled, termination is in the downlink data of the UE of idle state, when the downlink data that mails to UE arrives, initiate paging, the context of management and storage UE, this context comprise such as the parameter of IP bearer service or network internal routing iinformation etc.Wherein 2G/3G UPE refers to be the UPE of 2G/3G network service, and 2G/3G UPE also is SGSN+GGSN; SAE UPE is the UPE in the SAE network.

User Plane Anchor: user's face anchor point is the data entrance of territory, border B.Be responsible for the mobile management of B inside, territory, border, and be the borde gateway of territory, border B, be responsible for user data is forwarded to different UPE in the B of territory, border.

IASA (Inter AS Anchor, the mobile management anchor point between multiple connecting system): this anchor point is a user plane functions entity of supporting the mobile management between the multiple connecting system of 3GPP inside and 3GPP and non-3GPP definition.IASA has the function of mobile IP home agent.

In said system, the method flow of routing update specifically may further comprise the steps as shown in Figure 2:

201, the UE that is in idle condition reselects the 3GPP connecting system.

202, the connecting system gravity treatment triggers the UE network registry.

203, MME/UPE authentication UE.UE obtains to belong to the IP address ip of territory, border B behind the authentication success _EdgeBFor routing optimality, user's face anchor point (User Plane Anchor) can be unified with UPE.

204, to register it to HSS be that UE serves to new MME/UPE.

205, the context of the UE among the SGSN/GGSN is deleted under the notice of network, or deletion when timer expires.

206, HSS sends registration confirmation message to MME/UPE.

207, MME/UPE sends network registry acceptance to UE.

208, UE is to the IP address in IASA registration boundary territory.This step can be based on mobile IPv 4 or mobile IP v 6.If use mobile IP v 6, UE sends mobile IP login request message to IASA (home agent HA), IP in this request _EdgeBConcern address (CoA) as mobile IP.The packet that arrives IASA sends to user's face anchor point (user plane anchor) by the tunnel.The tunnel ends in terminal (as the FA coexistance model FA co-located mode that uses mobile IP v 6 or mobile IPv 4) or ends in user's face anchor point (as the FA model F A located mode that uses mobile IPv 4).

In the system and method that existing route upgrades, need mobile device to have mobile IP function (mobile IPv 4 or mobile IP v 6), just can't use mobile IP to carry out mobile management to those mobile devices that do not possess mobile IP function.The present invention proposes for the mobile device that tool is not moved IP also can use mobile IP that it is carried out mobile management.

Summary of the invention

The problem to be solved in the present invention is that the UE that does not possess mobile IP function under the Idle state uses mobile IP to carry out the problem of routing update.

For addressing the above problem, the present invention proposes a kind of method of using proxy-mobile IP UE to be carried out routing update;

Step 1, behind the mobile device reselecting network of idle condition, send login request message to new network-side service node;

Step 2, new network-side service node are searched from this locality or obtain the mobile security alliance information from the HSS of mobile device, and mobile device is authenticated;

Step 3, new network-side service node send mobile IP login request message to the home agent of mobile device, home agent is handled mobile IP login request message, if do not have the mobile security alliance information between effective mobile device and its home agent in the home agent, then ask this mobile security alliance information to HSS;

Step 4, new network-side service node send to mobile device and register the message of accepting confirmation.

Further, further may further comprise the steps after the described step 2:

C) MME/UPE oneself is serving MME/UPE of UE to the HSS registration;

D), HSS sends registration confirmation message to MME/UPE.

The described login request message of described step 1 comprises interim ID and old route district information or permanent ID.

Further, further may further comprise the steps before the described step 2:

A), obtain user's context among the SGSN that MME/UPE is registered before the mobile device by district's information according to this interim ID and old road;

B), SGSN sends to MME/UPE with user's context;

Further comprise before the steps d after the described step c: HSS notice SGSN/GGSN deletion UE information maybe with this UE message identification for not existing.

Wherein mobile IP login information can be based on mobile IPv 4, also can be based on mobile IP v 6.

Adopt system and method provided by the invention, do not increase wireless mouthful signaling, do not increase under the situation of complexity of flow process, make tool not move the UE of IP function, when idle condition, when interdepartmental system roaming takes place for it, can use mobile IP to carry out routing update.

Description of drawings

Fig. 1 uses mobile IP to carry out the system block diagram of the method for routing update in the prior art;

Fig. 2 is the method flow diagram that uses mobile IP to carry out routing update in the prior art;

Fig. 3 be the embodiment of the invention one the routing update flow chart;

Fig. 4 is the two system block diagram of the embodiment of the invention;

Fig. 5 is two a routing update flow chart of the invention process side's example.

Embodiment

Further describe in detail below in conjunction with the method for accompanying drawing invention.

Embodiment one

Present embodiment is when the situation of UE from the 2G/3G netsurfing to SAE, system block diagram as shown in Figure 1, user's face anchor point wherein can be unified with UPE, also can unify with IASA; The execution mode flow chart in order to simplify, is drawn in a node with MME/UPE and user's face anchor point among Fig. 3 as shown in Figure 3, specifically may further comprise the steps:

301, UE selects new connecting system in idle condition;

302, UE sends login request message to MME/UPE/User plane anchor under new connecting system.Comprise interim ID of UE and old route district information or permanent ID in this login request message;

303, comprised interim ID and old road in the login request message that MME/UPE receives by district's information, MME/UPE sends interim ID request user's context to SGSN;

304, SGSN sends to MME/UPE with the UE context.This context should comprise mobile IP context at least, and mobile IP context further comprises the information such as mobile security alliance between UE and IASA.

305, if inefficacy of mobile security alliance or MME/UPE that MME/UPE does not obtain in UE context or the mobile IP context must authenticate UE according to the system strategy needs, then MME/UPE reply UE authenticates, and HSS sends to MME/UPE with the relevant mobile security alliance of mobile IP in verification process.

Wherein, for authentication and mobile security alliance information distribution method two kinds of optional modes are arranged:

Method one: MME/UPE judges whether its this locality preserves all required security information of authentication mobile device UE, and these security information comprise: UE and MME/UPE recognize each other card required security information and mobile security alliance information.If have these information among the MME/UPE, then MME/UPE does not need to visit HSS, uses its local information of preserving that UE is authenticated by MME/UPE; If there is not the relevant security information of UE among the MME/UPE, then MME/UPE at first obtains these information to HSS, after these information of acquisition UE is authenticated.

Method two: MME/UPE is to UE authentication, to the authentication points of UE at HSS.MME/UPE at first judges whether to have the required security information of UE authentication MME/UPE, and (different with method one is, it in the method one UE and the MME/UPE security information of authentication mutually, here be the security information of UE authentication MME/UPE), if do not have, then MME/UPE obtains to the HSS of UE, these security information include only the required necessary information of UE authentication MME/UPE, but do not comprise the necessary information of MME/UPE authentication UE, also do not comprise the mobile security alliance information.After receiving these necessary informations, MME/UPE sends authentication request to UE.After receiving the authentication response of UE, MME/UPE sends to HSS with authentication response, and home subscriber server authenticates UE, behind the authentication success mobile security alliance information is sent to MME/UPE.

306, MME/UPE oneself is serving MME/UPE of UE to the HSS registration;

307, HSS notice SGSN/GGSN deletion UE information maybe with this UE message identification for not existing;

308, HSS sends registration confirmation message to MME/UPE;

309, MME/UPE is to the current location of IASA registered UE, and this register flow path further may further comprise the steps:

A, MME/UPE send mobile IP login information to IASA, have the digital digest of the mobile security alliance information calculating of adopting between UE and IASA in this mobile IP login request message, are used for the source of IASA authentication mobile IP login information and the integrality of message;

B, IASA accept this login request message, if there is not relevant this mobile subscriber's mobile security alliance among the IASA, then IASA need be to the HSS inquiry to obtain these information;

C, IASA upgrade the mobile IP binding information of UE, send the mobile IP registration response message to MME/UPE; In the mobile IP registration process, MME/UPE also sets up together to the forwarding tunnel of IASA;

310, MME/UPE sends to UE and registers the message of accepting confirmation.

Embodiment two:

This example is two not roamings between same area in the system of evolution (wireless access system is constant or change).System block diagram as shown in Figure 4, MME/UPE both can be the functional entity that defines among the SAE, also can be the SGSN in the 2G/3G network, UE moves to the network that territory, border B is covered from the network that territory, border A is covered.In order to keep the business continuance of UE, the IASA (a) of territory, border A in the moving process of UE as the home agent HA of mobile IP.UE sets up new user's face by the routing update between IASA (b) and the IASA (a) and guarantees that the external IP address of UE is constant.The routing update here realizes by the proxy-mobile IP register update.Wherein IASA (b) provides the function of the Foreign Agent of UE.MME/UPE (b) and IASA (b) presentation function entity are not got rid of the possibility that physically merges.

Present embodiment two with the main distinction of the foregoing description one is: IASA and user's face anchor point (User PlaneAnchor)/GGSN unification, the needed network element decreased number of system.

In Fig. 4, IASA (b) has the function of user's face anchor point among Fig. 1.When using proxy-mobile IP, MME/UPE (b) is as the mobile IP agent node.

The flow chart of present embodiment specifically may further comprise the steps as shown in Figure 5:

501, UE selects new connecting system in idle condition;

502, UE sends login request message to MME/UPE/User plane anchor under new connecting system, and this login request message comprises interim ID and former route district's information or the permanent ID of UE;

503, MME/UPE (b) receives the former route of interim ID/ district information, and MME/UPE (b) asks user's context according to interim ID and former route district information to MME/UPE (a), should have request in this message and send the contextual sign of mobile IP;

504, MME/UPE (a) sends to MME/UPE (b) with the UE context.This context should comprise the permanent ID of user and other information, as: security information, IP beared information.User's context also comprises mobile IP context, as the home IP address of UE (Home Address, HoA), mobile security alliance information that UE is relevant (such as: the mobile security alliance between mobile security alliance, MME/UPE and the IASA of UE and IASA) etc.;

505, as if the mobile security alliance that does not have among the MME/UPE (b) between effective UE and IASA, perhaps MME/UPE (b) authenticates UE according to other demand for security needs, then authenticate between UE and MME/UPE (b), in the process of authentication, HSS sends to MME/UPE (b) with the mobile security alliance of UE and IASA;

506, MME/UPE (b) selects IASA, and MME/UPE among Fig. 5 (b) chooses IASA (b).When using mobile IPv 4, IASA (b) is the mobile IP agent of UE, and when using mobile IP v 6, IASA (b) is the borde gateway of territory, border B; The nonlocal IP address notification MME/UPE (b) that IASA (b) should distribute to UE, in mobile IPv 4, IP address, this other places is the IP address of certain interface of IASA (b), in the mobile IP v 6, this address can send to MME/UPE (b) by IASA (b), perhaps sends to its IPv6 prefix and the nonlocal IP address of other relevant informations generation UE by MME/UPE (b) according to IASA (b);

507, MME/UPE (b) sends registration message to HSS, and registering current MME/UPE is serving MME/UPE of UE;

508, HSS notice MME/UPE (a) deletion UE information maybe with this UE message identification for not existing;

Delete the routing relation of UE by inner R.U.P between 509, territory, border A routing update: MME/UPE (a) and IASA (a) in A inside, territory, border;

510, MME/UPE (a) sends the old UE context response of deletion to HSS;

511, HSS sends registration confirmation message to MME/UPE (b);

512, MME/UPE (b) sends mobile IP login information to IASA (a) (IASA (a) is the home agent of UE).In this message, the concern IP address of UE (CoA, Care of address) distributed in 506 steps.If there is not the mobile security alliance of relevant this UE among the IASA (a), IASA (a) needs visit HSS, to obtain the UE related registration information.Mobile IP login information need be transmitted by IASA (b).

513, MME/UPE (b) makes the packet that obtains UE send to MME/UPE (b) by IASA (b), thereby can finally send to UE to the routing relation of IASA (b) registered UE;

514, MME/UPE (b) sends registration to UE and accepts message.

Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.

Claims

1, the route renewing method in a kind of mobile communication system is characterized in that, specifically may further comprise the steps:

1.1, behind the mobile device reselecting network of idle condition, send login request message to new network-side service node;

1.2, new network-side service node is searched from this locality or obtain the mobile security alliance information from the HSS of mobile device, mobile device is authenticated;

1.3, new network-side service node sends mobile IP login request message to the home agent of mobile device, home agent is handled mobile IP login request message, if do not have the mobile security alliance information between effective mobile device and its home agent in the home agent, then ask this mobile security alliance information to HSS;

1.4, new network-side service node sends the registration message of accepting confirmation to mobile device.

2, the route renewing method in the mobile communication system according to claim 1 is characterized in that, further may further comprise the steps after the described step 1.2:

2.1, MME/UPE oneself is serving MME/UPE of UE to HSS registration;

2.2, HSS sends registration confirmation message to MME/UPE.

3, the route renewing method in the mobile communication system according to claim 1 is characterized in that, the login request message of described step 1.1 comprises interim ID and old route district information or permanent ID.

4, according to the route renewing method in claim 1 or the 2 or 3 described mobile communication system, it is characterized in that, further may further comprise the steps before the described step 1.2:

4.1, obtain user's context among the SGSN that registered before the mobile device by district's information according to this interim ID and old road of MME/UPE;

4.2, SGSN sends to MME/UPE with user's context;

Further comprise before the step 2.2 after the described step 2.1: HSS notice SGSN/GGSN deletion UE information maybe with this UE message identification for not existing.

5, the route renewing method in the mobile communication system according to claim 4 is characterized in that, described user's context comprises mobile IP context;

6, the route renewing method in the mobile communication system according to claim 5 is characterized in that, described mobile IP context comprises the mobile security alliance between UE and IASA.

7, the route renewing method in the mobile communication system according to claim 1 is characterized in that, obtains the mobile security alliance information in the described step 1.2 and further comprises following several situation:

When not having required security information of mobile device and MME/UPE authentication and mobile security alliance information among the MME/UPE, then obtain required security information from the ownership place client server;

When the security information that has mobile security alliance information and mobile device and MME/UPE to authenticate mutually among the MME/UPE or when HSS has obtained security information that mobile security alliance information and mobile device and MME/UPE authenticate mutually, then MME/UPE directly and authentication mutually between mobile device;

When only having the required security information of mobile device authentication MME/UPE among the MME/UIPE or when home subscriber server only gets access to the required security information of mobile device authentication MME/UPE, then HSS authenticates mobile device, behind the authentication success mobile security alliance information is sent to MME/UPE.

Described security information comprises UE and the MME/UPE required security information of authentication mutually, or the required security information of UE unilateral authentication MME/UPE;

8, the route renewing method in the mobile communication system according to claim 7, it is characterized in that, described HSS also comprises before mobile device UE is authenticated: MME/UPE sends authentication request to mobile device, after receiving the authentication response of mobile device, MME/UPE sends to HSS with authentication response.

9, the route renewing method in the mobile communication system according to claim 1 is characterized in that, described step 1.3 further may further comprise the steps:

9.1, MME/UPE sends mobile IP login information to IASA;

9.2, IASA authenticates the legitimacy of this message, if there not be relevant this mobile subscriber's mobile security alliance among the IASA, then IASA need inquire to obtain these information to HSS;

9.3, IASA upgrades the mobile IP binding information of UE, and sends the mobile IP registration response message to MME/UPE; In the mobile IP registration process, MME/UPE also sets up together to the forwarding tunnel of IASA;

10, the route renewing method in the mobile communication system according to claim 1 is characterized in that, described mobile IP login information is based on mobile IPv 4 or IPv6.