WO2007112690A1 - Procédé et système de mise à jour de route dans un système de communications mobiles - Google Patents

Procédé et système de mise à jour de route dans un système de communications mobiles Download PDF

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Publication number
WO2007112690A1
WO2007112690A1 PCT/CN2007/001058 CN2007001058W WO2007112690A1 WO 2007112690 A1 WO2007112690 A1 WO 2007112690A1 CN 2007001058 W CN2007001058 W CN 2007001058W WO 2007112690 A1 WO2007112690 A1 WO 2007112690A1
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WIPO (PCT)
Prior art keywords
mobile
network side
service node
side service
mobile device
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PCT/CN2007/001058
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English (en)
Chinese (zh)
Inventor
Zaifeng Zong
Wenruo Zhu
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Zte Corporation
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Filing date
Publication date
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Publication of WO2007112690A1 publication Critical patent/WO2007112690A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
    • H04W8/04—Registration at HLR or HSS [Home Subscriber Server]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/18—Service support devices; Network management devices
    • H04W88/182—Network node acting on behalf of an other network entity, e.g. proxy

Definitions

  • the present invention relates to a route update method and system in a mobile communication system.
  • FIG. 1 a system block diagram for using a mobile IP for routing update is shown in FIG. 1, wherein:
  • SGSN Serving GPRS Supporting Node
  • 2G/3G network packet domain functional entity responsible for mobility management, session management, forwarding user data packets, storing UE (mobile device) context information, generating temporary identification and Assign it to the UE, and be responsible for authenticating the user, etc.;
  • GGSN Gateway GPRS Supporting Node
  • 2G/3G network packet domain function entity responsible for session management, forwarding user data packets, etc., is a border gateway between 2G/3G network and external network
  • MME Mobility Management Entity, mobility management node
  • Control plane function entity responsible for managing and storing UE context (such as UE/user identity, mobility management state, user security parameters, etc.), generating temporary identifiers and assigning them to the UE, when the UE is camped responsible for authenticating the user in the tracking area or the network;
  • UPE User Plane Entity: User plane function entity, user plane data routing processing, terminating the downlink data of the UE in idle state, and when the downlink data sent to the UE arrives, initiate paging, manage and store the UE.
  • the context includes the parameters of the IP bearer service or the internal routing information of the network.
  • the 2G/3G UPE is the UPE serving the 2G/3G network, and the 2G/3G UPE is also the SGSN+GGSN.
  • the SAE UPE is the UPE in the SAE network.
  • User Plane Anchor User Plane anchor, which is the data entry point for boundary field B. Responsible for mobility management within Boundary Domain B, and is the border gateway of Boundary Domain B, responsible for forwarding user data to different UPEs within Boundary Domain B.
  • IASA Inter AS Anchor, Mobility Management Anchor between Multiple Access Systems
  • This anchor is a mobility tube that supports 3GHP internal and 3GPP and non-3GPP defined multiple access systems User plane functional entity.
  • IAS A has the function of a mobile IP home agent.
  • the method for routing update is as shown in FIG. 2, which specifically includes the following steps:
  • the UE in idle state reselects the 3GPP access system.
  • the access system reselection triggers the UE network registration
  • MME/UPE authentication UE After the authentication succeeds, the UE obtains the IP address belonging to the boundary domain B.
  • the User Plane Anchor can be integrated with the UPE;
  • the new MME/UPE to the HSS Home Subscriber Server registers it as a UE service
  • the context of the UE in the SGSN/GGSN is deleted under the notification of the network, or deleted when the timer expires;
  • the HSS sends a registration confirmation message to the MME/UPE.
  • the MME/UPE sends a network registration acceptance to the UE.
  • the UE registers the IP address of the border domain with the IASA. This step can be based on Mobile IPv4 or Mobile IPv6.
  • the UE sends a Mobile IP Registration Request message to the IASA (Home Agent HA), in which IP EdgeB is used as the Mobile IP Address of Interest (CoA, Care of address).
  • the packet arriving at the IASA is tunneled to the user plane anchor.
  • the tunnel terminates at the terminal (in the FA co-located mode using Mobile IPv6 or Mobile IPv4) or terminates at the user plane anchor (when using the FA mode FA located mode of Mobile IPv4).
  • mobile devices are required to have mobile IP functions (mobile IPv4 or mobile IPv6), and mobile devices that do not have mobile IP capabilities cannot use mobile IP for mobility management. .
  • the present invention is directed to enabling mobile devices that do not have mobile IP to also use mobile IP for mobility management.
  • the problem to be solved by the present invention is that the UE that does not have the mobile IP function in the Idle state uses the mobile IP for routing update.
  • the present invention provides a route update method in a mobile communication system, which specifically includes the following steps: 1. After the mobile device in the idle state reselects the network, sends a registration request message to the new network side service node;
  • the new network side service node After receiving the registration request message, the new network side service node obtains the mobile security association information from the old network side service node or from the home device server of the mobile device;
  • the new network side service node sends a mobile IP registration request message to the home agent of the mobile device, and the home agent processes the mobile IP registration request message;
  • the new network side service node sends a registration acceptance confirmation message to the mobile device.
  • step 1.3 if there is no mobile security association information between the active mobile device and the home agent in the home agent, the home agent requests the mobile home network information from the home subscriber server.
  • step 1. the method further includes the following steps: 1. 1.
  • the new network side service node registers itself with the home user server as a service node of the mobile device;
  • the home subscriber server sends a registration confirmation message to the new network side service node. Further, the registration request message of step 1.1 includes the temporary ID of the mobile device and the old routing area information, or a permanent ID.
  • step 1. 2 further includes the following steps:
  • the new network side service node obtains the user context from the old network side service node where the mobile device was last registered according to the registration request information;
  • the old network side service node sends the user context to the new network side service node. Further, after step 3.1, before step 3.2, the method further includes: the home user server notifying the old network side service node to delete the mobile device information or to identify the mobile device information as not present.
  • the user context includes a mobile IP context.
  • the mobile IP context includes Mobile Security Association information between the mobile device and the home agent.
  • the method further includes: when the new network side service node fails to be from the old network side When the service node obtains the security information and the mobile security association information required for mutual authentication between the valid mobile device and the new network side service node, the new network side service node acquires the required security information from the home user server of the mobile device;
  • the new network side service node When the mobile device is authenticated by the new network side service node, the new network side service node obtains the mobile security association information and the mutual authentication information of the mobile device and the network side service node from the old network side service node or the home user server. And then authenticating the mobile device directly; when the mobile device is authenticated by the home user server, the new network side service node obtains the mobile device authentication new network side service node only from the old network side service node or the home user server.
  • the required security information the new network side service node sends an authentication request to the mobile device, and after the mobile device authenticates the authentication request, the authentication response is sent to the new network side service node; after receiving the authentication response of the mobile device, the new network side The service node sends the authentication response to the home subscriber server, and the home subscriber server authenticates the mobile device. After the authentication succeeds, the mobile security association information is sent to the new network side service node.
  • step 1. 3 further includes the following steps:
  • the new network side service node sends a mobile IP registration request message to the home agent
  • the home agent authenticates the legitimacy of the message. If there is no mobile security association for the user equipment in the home agent, the home agent needs to query the home user server to obtain the information.
  • the home agent updates the mobile IP binding information of the user equipment, and sends a mobile IP registration response message to the new network side service node; in the mobile IP registration process, the new network side service node forwards the tunnel to the home agent. Also built together.
  • the mobile security association information includes at least a session key between the mobile device and the home agent.
  • the mobile IP registration request message carries a digital digest calculated by using mobile security association information between the mobile device and the home agent, and the digital digest is used for the home agent to authenticate the source of the mobile IP registration message and the integrity of the message.
  • the Mobile IP registration request message is based on Mobile IPv4 or IPv6.
  • the new network side service node is a mobility management node and a user plane node; the old network side service node is a general wireless packet service service node or a mobility management node and a user plane node.
  • the invention also provides a routing update system in a mobile communication system, comprising: a mobile device, a new network side service node, an old network side service node, a home user server, a home agent; the mobile device is in an idle state and reselects the network Afterwards, sending a registration request message to the new network side service node;
  • the new network side service node After receiving the registration request message, the new network side service node sends the mobile IP registration request message to the home agent from the old network side service node or from the home device server of the mobile device, and receives the mobile IP registration request message; Sending a registration acceptance confirmation message to the mobile device after the mobile IP registration response message is sent;
  • the home agent processes the mobile IP registration request message and returns a mobile IP registration response message to the new network side service node.
  • the home agent requests the mobile home network information from the home subscriber server.
  • the new network side service node or the home subscriber server authenticates the mobile device.
  • the mobile security association information acquired by the new network side service node includes at least a session key between the mobile device and the home agent.
  • the new network side service node is a mobility management node and a user plane node;
  • the old network side service node is a general wireless packet service service node or a mobility management node and a user plane node.
  • the UE without the mobile IP function can perform the cross-system roaming when in the idle state.
  • FIG. 1 is a system block diagram of a method for routing update using mobile IP in the prior art
  • FIG. 2 is a flowchart of a method for routing update using mobile IP in the prior art
  • 3 is a flowchart of routing update according to Embodiment 1 of the present invention
  • Embodiment 2 of the present invention is a system block diagram of Embodiment 2 of the present invention.
  • FIG. 5 is a flowchart of routing update according to Embodiment 2 of the present invention. Preferred embodiment of the invention
  • This embodiment is a case where the UE roams from the 2G/3G network to the SAE.
  • the block diagram of the route update system is as shown in FIG. 1, and includes: a mobile device UE, a new network side service node MME UPE, an old network side service node SGSN, and a home location.
  • the mobile device After the mobile device is in an idle state and reselects the network, the mobile device sends a registration request message to the new network side service node;
  • the new network side service node After receiving the registration request message, the new network side service node sends the mobile IP registration request message to the home agent from the old network side service node or from the home device server of the mobile device, and receives the mobile IP registration request message; Sending a registration acceptance confirmation message to the mobile device after the mobile IP registration response message is sent;
  • the home agent processes the mobile IP registration request message and returns a mobile IP registration response message to the new network side service node.
  • the UE selects a new access system in an idle state.
  • the UE sends a registration request message to the new network side serving node MME/UPE/User plane anchor under the new access system.
  • the registration request message includes a UE temporary ID and an old routing area information or a permanent ID;
  • the registration request message received by the MME/UPE includes the temporary ID and the old routing area information.
  • the MME/UPE finds the old network side service node SGSN where the UE was last registered (ie, registered) according to the temporary ID and the old routing area information, and the MME/UPE sends a temporary ID to the SGSN, requesting the SGSN to send the user context; 304.
  • the SGSN sends the UE context to the MME/UPE.
  • the context should at least include a mobile IP context, the mobile IP context further including information such as a mobile security association between the UE and the home agent IASA.
  • the MME UPE shall obtain the mobile IP related mobile security from the home subscriber server HSS. Alliance information.
  • the UE is authenticated by the MME/UPE or HSS as needed. There are two options for obtaining the Mobile Security Association information and the authentication process for the UE:
  • Method 1 The UE is authenticated by the MME/UPE.
  • the MME/UPE determines whether it has all the security information required for authenticating the mobile device UE.
  • the security information includes: security information and mobile security association information required for mutual authentication between the UE and the MME/UPE. If the information is stored in the MME/UPE, the MME UPE does not need to access the HSS, and the MME UPE authenticates the UE by using its locally saved information. If there is no UE-related security information in the MME UPE, the MME/UPE first sends the HSS to the HSS. Obtain this information and authenticate the UE after obtaining this information.
  • Method 2 The MME/UPE does not authenticate the UE, and the authentication point of the UE is in the HSS.
  • the MME/UPE first determines whether there is security information required for the UE to authenticate the MME UPE. (Under the first method, in the first method, the UE and the MME/UPE mutually authenticate the security information, where is the security information of the UE authentication MME UPE) If not, the MME/UPE obtains the information from the HSS of the UE.
  • the security information only includes the necessary information required by the UE to authenticate the MME UPE, and does not include the necessary information of the MME/UPE authentication UE, and does not include the mobile security association information.
  • the MME UPE After receiving the necessary information, the MME UPE sends an authentication request to the UE. After receiving the authentication response from the UE, the MME/UPE sends the authentication response to the HSS. The HSS authenticates the UE. After the authentication succeeds, the mobile security association information is sent to the MME UPE.
  • the choice of the two methods is determined at the time of system configuration, or based on the security information obtained from the old network side service node or HSS.
  • the MME/UPE registers with the HSS as the service MME/UPE of the UE.
  • the HSS notifies the SGSN/GGSN to delete the UE information or identify the UE information as not existing.
  • the HSS sends a registration confirmation message to the MME UPE.
  • the current location of the MME/UPE to the IASA registration UE, the registration process further includes The following steps are performed: a.
  • the MME/UPE sends a mobile IP registration request message to the IASA, where the mobile IP registration request message is based on mobile IPv4 or IPv6, and has a digital digest calculated by using the mobile security association information between the UE and the IASA, for the IASA.
  • the IASA accepts the registration request message. If there is no valid mobile security association information about the mobile device in the IASA, the IASA needs to query the HSS to obtain the information.
  • the mobile security association information includes at least the session between the UE and the IASA. Key. ;
  • the IASA updates the mobile IP binding information of the UE, and sends a mobile IP registration response message to the MME/UPE; in the mobile IP registration process, the forwarding tunnel of the MME/UPE to the IASA is also established together;
  • the MME/UPE sends a registration acceptance confirmation message to the UE.
  • Embodiment 2 is a diagrammatic representation of Embodiment 1:
  • the system block diagram is shown in Figure 4.
  • the system includes a new network side service node MME/UPE(b), an old network side service node MME/UPE(a), a home device user server HSS of the mobile device, and a home agent IASA of the mobile device.
  • user plane anchor User Plane Anchor User Plane Anchor.
  • the MME/UPE may be either a functional entity defined in the SAE or an SGSN in the 2G/3G network, and the UE moves from the network covered by the boundary domain A to the network covered by the boundary domain B.
  • the IASA(a) of the border domain A acts as the home agent HA of the mobile IP during the UE's movement.
  • the UE establishes a new user plane through the routing update between IASA(b) and IASA(a) and ensures that the UE's external IP address does not change.
  • the routing update here is implemented by proxying the mobile IP registration update.
  • IASA(b) provides the foreign agent function of the UE.
  • MME/UPE(b) and IASA(b) represent functional entities and do not exclude the possibility of physical merging.
  • MME/UPE(b) acts as a mobile IP proxy node.
  • the UE selects a new access system in an idle state. 502.
  • the UE sends a registration request message to the MME/UPE(b)/User plane anchor under the new access system, where the registration request message includes the temporary ID of the UE and the old routing area information or permanent ID.
  • the MME/UPE(b) receives the temporary ID/old routing area information, and the MME/UPE(b) requests the user context according to the temporary ID and the old routing area information to the MME/UPE(a), and the message should be carried in the message. There is an identifier requesting to send a mobile IP context;
  • the MME/UPE(a) sends the UE context to the MME/UPE(b).
  • This context should include the user's permanent ID and other information such as: security information, IP bearer information.
  • the user context also includes a mobile IP context, such as the UE's Home Address (HoA), UE-related Mobile Security Association information (eg, UE and IASA Mobile Security Association information, Mobile Security Alliance between MME/UPE and IASA) Information, etc.
  • the Mobile Security Association information includes at least a session key between the UE and the IASA;
  • the MME UPE(b) should obtain the mobile IP related mobile security from the HSS. Alliance information.
  • the UE is authenticated by the MME/UPE(b) or HSS as needed.
  • the process of obtaining the mobile security association information and the authentication process for the UE have two alternative modes: Method 1: The UE is authenticated by the MME/UPE(b).
  • the MME/UPE(b) determines whether it locally stores all the security information required for authenticating the mobile device UE.
  • the security information includes: security information and mobile security association information required for mutual authentication between the UE and the MME/UPE(b).
  • VDVE UPE(b) If the information is stored in the MME/UPE(b), the MME/UPE(b) does not need to access the HSS, and the MME/UPE(b) authenticates the UE by using its locally stored information; if MME/UPE(b) There is no UE-related security information, then] VDVE UPE(b) first obtains this information from the HSS and authenticates the UE after obtaining the information.
  • Method 2 The MME UPE(b) does not authenticate the UE, and the authentication point for the UE is in the HSS.
  • MME/UPE(b) first determines whether there is security information required for the UE to authenticate the MME/UPE(b) (unlike the first method, in the first method, the UE and the MME UPE(b) mutually authenticate the security information, here It is the security information of the UE authentication MME UPE(b). If not, the VIME UPE(b) is obtained from the HSS of the UE.
  • the security information only includes the necessary information required by the UE to authenticate the MME/UPE(b), excluding the necessary information.
  • MME/UPE(b) Necessary information for authenticating the UE, and does not include Mobile Security Association information. Receiving this After the necessary information, the MME/UPE(b) sends an authentication request to the UE. After receiving the authentication response of the UE, the MME/UPE(b) sends an authentication response to the HSS, and the HSS authenticates the UE. After the authentication succeeds, the mobile security association information is sent to the MME UPE.
  • the choice of the above two methods is determined at the time of system configuration, or based on the security information obtained from the old network side service node or HSS.
  • MME/UPE(b) selects IASA, and in Figure 5, MME/UPE(b) selects IASA(b).
  • IASA(b) is the mobile IP foreign agent of the UE.
  • IASA(b) is the border gateway of Boundary Domain B; IASA(b) should assign the Mobile IP attention address to the UE. Notify MME/UPE(b).
  • the mobile IP attention address (ie, the foreign IP address) is the IP address of an interface of IASA(b); in mobile IPv6, the address can be sent to the MME/UPE through the IASA(b)(b) Or generating, by the MME/UPE (b), the mobile IP attention address of the UE according to the IPv6 prefix and other related information previously sent to it by the IASA (b);
  • MME / UPE (b) sends a registration message to the HSS, the current MME / UPE (b) is registered as the service MME / UPE of the UE;
  • the HSS notifies the MME/UPE(a) to delete the UE information or identify the UE information as not existing;
  • border domain A routing update MME UPE (a) and IASA (a) delete the routing relationship between the UE in the border domain A through the internal routing update protocol;
  • the MME/UPE(a) sends a delete old UE context response to the HSS.
  • the HSS sends a registration confirmation message to the MME/UPE(b).
  • the MME/UPE(b) sends a Mobile IP Registration Request message to the IASA(a) (the IASA(a) is the home agent of the UE).
  • the message is based on Mobile IPv4 or IPv6 with a digital digest calculated using UE and IASA(a) Mobile Security Association information for IASA (a) authenticating the source and message integrity of the Mobile IP registration message .
  • the UE's mobile IP attention address is allocated in step 506. If there is no valid Mobile Security Association information about the UE in IASA(a), IASA(a) needs to access the HSS to obtain UE-related registration information.
  • Mobile IP registration messages need to be forwarded by IASA(b).
  • the MME/UPE(b) registers the routing relationship of the UE with the IASA (b), so that the data packet obtained by the UE can be sent to the MME/UPE (b) through the IASA (b), and finally can be sent to the UE. 514. MME/UPE(b) sends a registration acceptance confirmation message to the UE.
  • the UE without the mobile IP function can perform the cross-system roaming when in the idle state. Use mobile IP for routing updates.

Abstract

La présente invention concerne un procédé de mise à jour de route dans un système de communications mobiles comprenant: après la resélection de réseau par un équipement mobile en mode repos, celui-ci transmet un message de demande d'enregistrement au noeud de service côté nouveau réseau; après la réception par le noeud de service côté nouveau réseau du message de demande d'enregistrement, celui-ci acquiert l'information de lien de sécurité depuis le noeud de service côté ancien réseau ou HSS de l'équipement mobile; le noeud de service côté nouveau réseau transmet un message de demande d'enregistrement IP mobile vers l'agent local de l'équipement mobile, l'agent local traite le message de demande d'enregistrement IP mobile; le noeud de service côté nouveau réseau transmet un message d'accusé de réception d'acceptation d'enregistrement à l'équipement mobile. L'invention concerne également un système de mise à jour de route comportant: un équipement mobile, un noeud de service côté nouveau réseau, un noeud de service côté ancien réseau, un HSS et un agent local. Grâce au système et au procédé selon l'invention, un équipement d'utilisateur sans fonction IP mobile en mode repos peut utiliser un IP mobile pour la mise à jour de route lors de son déplacement entre des systèmes, sans ajout de signalisation d'interface radio et de complexité de flux.
PCT/CN2007/001058 2006-04-03 2007-04-02 Procédé et système de mise à jour de route dans un système de communications mobiles WO2007112690A1 (fr)

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CN1567757A (zh) * 2003-06-13 2005-01-19 北京三星通信技术研究有限公司 通信系统中使用mbms业务的ue进行路由区域更新的方法

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CN103313284A (zh) * 2010-06-18 2013-09-18 电信科学技术研究院 一种激活/去激活isr优化方法及网络侧设备
CN103313284B (zh) * 2010-06-18 2016-05-18 电信科学技术研究院 一种激活/去激活isr优化方法及网络侧设备

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