CN101754175A - Static hometown proxy access realizing method, system and mobile node - Google Patents
Static hometown proxy access realizing method, system and mobile node Download PDFInfo
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- CN101754175A CN101754175A CN200910134003A CN200910134003A CN101754175A CN 101754175 A CN101754175 A CN 101754175A CN 200910134003 A CN200910134003 A CN 200910134003A CN 200910134003 A CN200910134003 A CN 200910134003A CN 101754175 A CN101754175 A CN 101754175A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W60/00—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
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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]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/26—Network addressing or numbering for mobility support
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W80/00—Wireless network protocols or protocol adaptations to wireless operation
- H04W80/04—Network layer protocols, e.g. mobile IP [Internet Protocol]
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Abstract
The invention provides a static hometown proxy access realizing method, a system and a mobile node. The method includes the following steps: (a) network equipment informs the mobile node of a hometown proxy IP address and an static hometown proxy instruction which is used for instructing that hometown proxy is static; (b) the mobile node stores the hometown proxy IP address namely the static hometown proxy IP address; (c) the mobile node establishes connection with the static hometown proxy according to the stored static hometown proxy IP address. The realizing method, the system and the mobile node can effectively quicken the business access of the mobile node.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of implementation method, system and mobile node of static hometown proxy access.
Background technology
Mobile IP protocol is a kind of network layer scheme that locomotive function is provided on internet (Internet), makes node not interrupt ongoing communication when handoff links.Particularly mobile IP provides a kind of IP routing mechanism, and making still can be accessed by its home address when mobile node inserts foreign link.In the MIPv6 application scenarios schematic diagram as shown in Figure 1, mainly form by HA (Home Agent, home agent), access network (Access network)/couple in router (Access Router) and MN (mobile node, Mobile Node).
Below will explain important proper noun about mobile IP:
Mobile node (Mobile Node): refer to move to another tie point from the tie point of a link among the mobile IP, simultaneously, still can pass through the accessed node of its home address.
Home agent (Home Agent, HA): refer to a router on the moving nodes local link.When mobile node left home link, the destination address that can intercept on its home link was the packet of moving nodes local address, was forwarded to the Care-of Address of mobile node registration by the tunnel.
Home address (Home Address, HoA): refer to distribute to the permanent IP address of mobile node, belong to the home link of mobile node.The IP routing mechanism of standard can send to its home link to the grouping of issuing the moving nodes local address.
Care-of Address (Care of Address, CoA): the IP address that obtains when referring to mobile node visit foreign link.The subnet prefix of this IP address is the foreign subnet prefix.
Binding (Binding): be the IPv6 home network prefix of MN and/or the incidence relation between IPv4 home address and the CoA.
HA is the home agent of MN, it is the topological anchor point of the home network prefix of MN, and the binding state of management MN, each binding state is corresponding to BCE (the Binding CacheEntry of HA management, the banding cache clauses and subclauses), have in this BCE: mobile node sign (MN Identifier), the IPv6 home network prefix of the current use of MN and/or IPv4 home address, when MN inserts EPS network (Evolved Packet System, the grouping system of evolution) also comprises the business information (Access Point Name, APN) of current use (Fig. 2) time among the BCE.It is the IPv6 home network prefix of MN or the packet of IPv4 home address that HA can intercept destination address, be forwarded to the registration of MN among the BCE Care-of Address (Care-of Address, CoA).
When MN was connected to initial HA, initial HA needed this MN is moved to target HA for some reason among Fig. 1, and this reason can be: the load of initial HA is too high.This moment, initial HA need issue MN with the IP address of target HA and the indication of conversion HA, after MN receives this indication, nullified the connection at initial HA, initiated to be established to the connection of target HA simultaneously.
When UE (user terminal, when User Equipment) inserting EPS network (as Fig. 2) by non-3 GPP access network as mobile node (MN), two stack mobile IP protocol sixth version (DS-MIPv6, Dual Stack MIPv6) be used to keep IP address constant, to keep the customer service continuity, this moment, P-GW had the function of HA.The non-3 GPP access network of trusting or the packet data gateway (ePDG) of evolution can distribute Care-of Address (CoA) for UE.When UE used mobility service, UE initiates the Internet Key Exchange the 2nd edition, and (Internet Key Exchange version 2 IKEv2) set up Security Association with HA, and HA can issue UE for UE distributing IP address (HoA) and this address.
Fig. 2 is EPS (Evolved Packet System, the grouping system of an evolution) system architecture diagram.In order to keep the strong competitiveness of 3-G (Generation Three mobile communication system), must improve its network performance and reduce networking and operation cost at moving communicating field.Therefore, 3GPP (3rd GeneraionPartnership Project, third generation partner program) standardization effort group is just endeavouring to study core network system evolution---EPC (Evolved Packet Core of future generation at present, the packet-based core networks of evolution), purpose is can be for the user provides higher transmission rate, shorter propagation delay time.The EPC system supports the access of E-UTRAN (Evolved Universal Terrestrial Radio Access Network, the universal land radio access web of evolution); The EPC system supports the access of Non-3GPP Access Network, as WiMAX (Worldwide Interoperability for Microwave Access, worldwide interoperability for microwave inserts) Access Network.
As shown in Figure 2, UE (User Equipment, subscriber equipment) is under the non-roaming situation, and UE inserts EPC by Non-3GPP Access Network (comprise trust with mistrustful Non-3GPP Access Network).Network element among the figure also includes: MME (mobile management unit, Mobility ManagementEntity), S-GW (gateway, Serving Gateway), P-GW (PDN GW, PacketData Network GateWay, grouped data network gateway), HSS (Home Subscriber Server, home subscriber server), 3GPP aaa server (3GPP authentication and authorization charging server), ePDG (Evolved Packet Data Gateway, the packet data gateway of evolution).
Non-3 GPP access network as shown in Figure 2 comprises following two types:
The non-3 GPP access network (Trusted Non 3GPP Access) of trusting: have trusting relationship between 3GPP network and this non-3GPP connecting system, non-3GPP connecting system can directly insert P-GW.
Mistrustful non-3 GPP access network (Untrusted Non 3GPP Access): do not have trusting relationship between 3GPP network and this non-3GPP connecting system, non-3GPP connecting system must at first insert the ePDG of 3GPP network, inserts P-GW again.At this moment set up a secure tunnel between UE and the ePDG, guarantee the safe transmission of data between UE and the 3GPP network.
When preserving among the HSS when inserting static ip address that certain business (identifying with APN) need to use and static P-GW for UE, UE need be connected to this static state P-GW just can get access to corresponding static IP address.Initial p-GW that UE initiates to be connected to may not be this static state P-GW, and at this moment, initial p-GW gives UE from the IP address that HSS gets access to static P-GW with this IP address notification.The method of notice can have:
1. initial p-GW issues UE by IP address and HA conversion indication that the HA transforming message should static state P-GW;
2.UE in bootstrapping (Bootstrapping) process that initial p-GW initiates, initial p-GW notice UE:HA heavily distributes the IP address of (being the HA conversion) and static P-GW.
UE is initiated to the connection of static P-GW to get access to static ip address after getting access to the IP address of this static state P-GW.
But after UE disconnects professional the connection, need insert this once more professional the time, also need the process through HA conversion, this can bring between UE and the initial HA and unnecessary signaling interaction between initial HA and the HSS/AAA, the time of the access service of prolongation UE.
UE obtains home agent (HA) address, and promptly the mode of P-GW address also has:
1. when being attached to the 3GPP network, the PCO (Protocol Configuration Option, protocol configuration option) that sends by P-GW or GGSN (GPRS gateway service node);
2. mutual by IKEv2 when being established to the tunnel of ePDG;
3. mutual by DHCP (Dynamic Host Configuration Protocol, DHCP);
4. by DNS (Domain Name System, domain name system) inquiry.
Similarly in above-mentioned four kinds of modes, after UE disconnects professional the connection, need insert this once more professional the time, all will also need process through a HA conversion.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of implementation method, system and mobile node of static hometown proxy access, with the speed of effective quickening mobile node access service.
For solving the problems of the technologies described above, the invention provides a kind of implementation method of static hometown proxy access, this method comprises:
(a) the IP address of network equipment notice local proxy of mobile node and static hometown proxy indication, it is static hometown proxy that described static hometown proxy indication is used to indicate described home agent;
(b) described mobile node is preserved the IP address of described home agent, also is the IP address of static hometown proxy;
(c) described mobile node connects with described static hometown proxy according to the IP address of the static hometown proxy of preserving.
Further, the described network equipment is one of following: the packet data gateway ePDG of packet data network gateway P-GW, GPRS gateway service node GGSN, evolution, Dynamic Host Configuration Protocol server DHCP Server, domain name system server DNS Server.
Further, the function of described home agent realizes at grouped data network gateway P-GW, the IP address of described static hometown proxy refers to the IP address of static P-GW, and mobile node described in the step (b) is also preserved the corresponding relation of the service identification of the IP address of described static P-GW and current business simultaneously.
Further, described mobile node also is used for checking the IP address of whether preserving corresponding static P-GW according to the service identification of current business.
For addressing the above problem, the present invention also provides a kind of realization system of static hometown proxy access, and this system comprises the network equipment and mobile node, it is characterized in that:
The described network equipment is used to notify the IP address and the static hometown proxy indication of local proxy of mobile node, and it is static hometown proxy that described static hometown proxy indication is used to indicate described home agent;
Described mobile node is used to receive IP address and the static hometown proxy indication that the network equipment is notified its home agent, and the IP address of preserving described home agent, also is the IP address of static hometown proxy; Described mobile node also is used for the IP address according to the static hometown proxy of preserving, and connects with described static hometown proxy.
Further, described mobile node also is used to check the IP address of himself whether preserving static hometown proxy, directly to connect with the static hometown proxy of preserving the IP address.
Further, the described network equipment is one of following: the packet data gateway ePDG of packet data network gateway P-GW, GPRS gateway service node GGSN, evolution, Dynamic Host Configuration Protocol server DHCP Server, domain name system server DNS Server.
Further, the function of described home agent realizes that by packet data network gateway P-GW the IP address of described static hometown proxy refers to the IP address of static P-GW; Described mobile node also is used to preserve the corresponding relation of the service identification of the IP address of described static P-GW and current business when preserving the IP address of described static P-GW; Described mobile node also is used for checking the IP address of whether preserving corresponding static P-GW according to the service identification of current business.
Further, the described network equipment also is used to inquire about the information of self preserving, or obtains from the outside, and whether the IP address and this home agent that obtain home agent are the information of static hometown proxy.
For addressing the above problem, the present invention also provides a kind of mobile node, is used for the access static home agent, it is characterized in that:
Described mobile node is used to receive IP address and the static hometown proxy indication that the network equipment is notified its home agent, and it is static hometown proxy that described static hometown proxy indication is used to indicate described home agent;
Described mobile node also is used to preserve the IP address of described home agent, also is the IP address of static hometown proxy; Described mobile node also is used for the IP address according to the static hometown proxy of preserving, and connects with described static hometown proxy.
Further, described mobile node also is used to check the IP address of himself whether preserving static hometown proxy, directly to set up Security Association with the static hometown proxy of preserving the IP address.
The invention provides the implementation method of static hometown proxy access, system and mobile node, the IP address and the static hometown proxy indication of its static hometown proxy of network equipment notice mobile node, the IP address that is about to static hometown proxy is kept at mobile node, when mobile node connects once more, mobile node can be according to the IP address of the static hometown proxy of preserving, directly set up Security Association and binding relationship with described static hometown proxy, carry out the process of the IP address of HA conversion or inquiry HA when avoiding mobile node to be connected to network once more once more, effectively reduce the load of network and UE, accelerate the speed of UE access service.
Description of drawings
Fig. 1 is the MIPv6 application schematic diagram according to prior art.
Fig. 2 is the Organization Chart according to prior art EPS system.
Fig. 3 is the flow chart of the implementation method of static hometown proxy access according to the present invention.
Fig. 4 is the flow chart of the implementation method example one, three of the static hometown proxy access according to the present invention.
Fig. 5 is the flow chart of the implementation method example two, four of the static hometown proxy access according to the present invention.
Embodiment
Core concept of the present invention is a network in its local proxy information of notice mobile node, is that this mobile node is notified in the indication of static hometown proxy with this home agent.Mobile node is preserved the IP address of described static hometown proxy, and when connecting once more, IP address according to the static hometown proxy of preserving, directly set up Security Association with described static hometown proxy, thereby solve the complexity and the bigger problem of time delay of user's access service, accelerate the speed of UE access service.
As shown in Figure 3, the implementation method of static hometown proxy access of the present invention may further comprise the steps:
Perhaps, the network equipment sends the IP address and the static hometown proxy of home agent and indicates to mobile node, and it is static hometown proxy that described static hometown proxy indication is used to indicate described target home agent;
Step 304: mobile node and static hometown proxy are set up Security Association and binding relationship.
In the method for the invention, in case mobile node has been preserved the address of the static hometown proxy corresponding with professional (APN), follow-uply need be connected to this professional the time when mobile node, the IP address of the static hometown proxy that this business (APN) that mobile node is preserved according to self is corresponding, directly and static hometown proxy set up Security Association.
Below in conjunction with accompanying drawing the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein only is used for description and interpretation the present invention, and be not used in qualification the present invention.
According to different connection request modes the embodiment of the invention is described respectively below.
Example one
Fig. 4 is the flow chart according to the inventive method example one.
When the user inserts initial p-GW, the HSS/AAA designated user switches to target P-GW, and target P-GW is when being static P-GW, and the static P-GW access method of the embodiment of the invention may further comprise the steps:
S401, UE authenticate by the non-3 GPP access network of trusting or foundation and ePDG between secure tunnel, obtain a local ip address simultaneously, this address will be used as the Care-of Address of DSMIPv6;
S402, the UE IP address that whether inquiry has preserved the P-GW of corresponding static state according to current business (APN), as preserving, then change execution in step 406, otherwise by and HSS/AAA between an authentication reciprocal process, UE is established to the DSMIPv6 Security Association of initial p-GW, the service identification (APN) of current business is issued initial p-GW, and HSS/AAA issues initial p-GW with the target ip address of preserving, IP address and the reallocation indication (reallocation indication) of target P-GW; Target P-the GW that changes because of this home agent is static P-GW, and it is static P-GW that HSS/AAA also indicates this P-GW;
After UE disconnects current connection, need be connected to this once more professional the time, according to the IP address of the corresponding static P-GW of this business (APN) of self preserving, directly with the Security Association of setting up of static P-GW.
S403, UE send Binding Update to initial p-GW;
S404, initial p-GW sends home agent transforming message (HA Switch message) and gives UE, wherein comprises the IP address of the target P-GW that receives among the S402 and carries the static hometown proxy indication, and indicating this P-GW is static P-GW; UE preserves the IP address of this P-GW and the service identification (APN) of current business;
S405, the binding update messages that the UE transmission goes to register are to initial p-GW, and wherein be set life cycle is zero, finishes the registration process of going at initial p-GW;
S406, UE initiates to be established to the DSMIPv6 Security Association of static P-GW, and the IP address of this static state P-GW obtains in S404, and target P-GW gives UE home address as UE with the STATIC IP ADDRESSING of the UE that HSS sends;
S407, UE are initiated to the binding update messages of static P-GW, and static P-GW replys UE binding acknowledgement message, finishes binding procedure.
Embodiment two
Fig. 5 is the flow chart according to the inventive method example two.
MN is established to the connection of initial HA, and initial HA finds it oneself is not the static HA of MN, gets access to the static HA of inner this MN that preserve or that get access to from the outside, should static state HA notice MN.
As shown in Figure 5, the static HA access method according to the embodiment of the invention may further comprise the steps:
S501, MN inserts access network, gets access to Care-of Address (CoA) from access network or couple in router;
S502, execution in step 506 if preserve, is then changeed in the IP address whether the MN inquiry preserves static HA, otherwise MN sets up Security Association with initial HA, and initial HA distributes home address for this MN, and sends to MN;
After MN disconnects current connection, when MN needs to connect once more, according to the address of the static HA that self preserves, directly with the Security Association of setting up of static HA.
S503, MN are initiated to the Binding Update of initial HA, and initial HA replys binding acknowledgement and gives MN;
S504, initial HA finds it self is not the home agent of this MN, in the information that self preserves, find the local proxy information of this MN or obtain the local proxy information of this MN from outside (such as HSS), send home agent conversion indication to MN, the IP address of wherein containing target HA, and the static hometown proxy indication, it is static hometown proxy that described static hometown proxy indication is used to indicate described target home agent; MN preserves the IP address of this static state HA.
What S505, MN were initiated to initial HA removes to register Binding Update, and initial HA replys and goes to register binding acknowledgement message and give MN;
S506, the static HA that obtains among MN and the S504 sets up Security Association, and static HA uses STATIC IP ADDRESSING to MN;
This static ip address can be to be kept among the static HA or static HA obtains from outside (such as HSS);
S507, MN send Binding Update to static HA, set up the binding of Care-of Address and the home address of MN at static HA; Static HA replys binding acknowledgement and gives MN.
In sum, because adopt the above embodiment of the present invention, can make the direct access static P-GW/HA of subscriber equipment and do not need to pass through once more the home agent transfer process.
Embodiment three
Fig. 4 is the flow chart according to the inventive method example three.
P-GW has the function of home agent HA in the 3GPP network.As shown in Figure 4, when the user inserts initial p-GW, the HSS/AAA designated user switches to target P-GW, and target P-GW is when being static P-GW, and the static P-GW access method of the embodiment of the invention may further comprise the steps:
S401 ', UE authenticates by the non-3 GPP access network of trusting, and perhaps the secure tunnel between foundation and the ePDG perhaps inserts the 3GPP network, obtains a local ip address simultaneously, and this address will be used as the Care-of Address of DSMIPv6; UE gets access to the IP address of initial p-GW, and the method for obtaining can be DNS inquiry, perhaps by and ePDG between carry out the message that flow process is set up in the tunnel, perhaps by dhcp message, the perhaps PCO that sends by GGSN or P-GW;
When the network equipment (can be DNS Server, ePDG, DHCP Server, arbitrary among GGSN or the P-GW) know when this P-GW is static hometown proxy, UE can also get access to the static hometown proxy indication that the network equipment is sent, this moment, UE preserved the address of this home agent, and indicated that this home agent is a static hometown proxy; UE also preserves the corresponding relation of the service identification of the IP address of described static hometown proxy and current business simultaneously; UE inquires about according to the service identification of current business (APN) whether the IP address of preserving P-GW is static IP address, is the IP address of the P-GW of static state as what preserve, then changes execution in step S406 '; As the IP address of the P-GW of the right and wrong static state of preserving, then continue execution in step S402 ';
S402 ', by and HSS/AAA between an authentication reciprocal process, UE is established to the DSMIPv6 Security Association of initial p-GW, the service identification (APN) of current business is issued initial p-GW, and HSS/AAA issues initial p-GW with IP address and the reallocation indication (reallocation indication) of the target P-GW of preservation; It is static P-GW that HSS/AAA also indicates this P-GW;
Alternatively, in the authentication reciprocal process between UE and P-GW and HSS/AAA, initial p-GW can indicate UE to need home agent heavily to distribute, also UE is issued in IP address and the static hometown proxy indication of target P-GW, indicating this target P-GW is static P-GW, UE redirect this moment execution in step 406 '.
S403 ', UE send Binding Update to initial p-GW;
Optionally, initial p-GW receives after the Binding Update that UE sends, initial p-GW can issue UE with IP address and the static hometown proxy indication of target P-GW in sending to the binding acknowledgement message of UE, indicating this target P-GW is static P-GW, UE redirect this moment execution in step 406 '.
S404 ', initial p-GW sends home agent transforming message (HA Switch message) and gives UE, wherein comprises the IP address of the target P-GW that receives among the S402 and carries the static hometown proxy indication, and indicating this P-GW is static P-GW; UE preserves the IP address of this P-GW and the service identification (APN) of current business;
S405 ', the binding update messages that the UE transmission goes to register are to initial p-GW, and wherein be set life cycle is zero, finishes the registration process of going at initial p-GW;
S406 ', UE initiate to be established to static P-GW, and (be the DSMIPv6 Security Association of target P-GW), (UE is given in the STATIC IP ADDRESSING that is the UE of target P-GW) HSS is sent home address as UE to static P-GW;
S407 ', UE are initiated to the binding update messages of static P-GW, and static P-GW replys UE binding acknowledgement message, finishes binding procedure.
In the present embodiment, in case UE has preserved the address of the static hometown proxy corresponding with professional (APN), follow-uply need be connected to this professional the time as UE, UE is according to the IP address of the corresponding static P-GW of this business (APN) of self preserving, directly with the Security Association of setting up of static P-GW.
In order to realize above method, the present invention also provides a kind of realization system of static hometown proxy access, and this system comprises that this system comprises the network equipment and mobile node, wherein,
The described network equipment is used to notify the IP address and the static hometown proxy indication of local proxy of mobile node, and it is static hometown proxy that described static hometown proxy indication is used to indicate described home agent; The described network equipment can be for following arbitrary: the packet data gateway ePDG of packet data network gateway P-GW, GPRS gateway service node GGSN, evolution, Dynamic Host Configuration Protocol server DHCP Server, domain name system server DNS Server.Wherein, P-GW has the function of home agent HA in the 3GPP network.
Described mobile node specifically refers to user terminal UE, is used to receive IP address and the static hometown proxy indication that the network equipment is notified its home agent, and the IP address of preserving described home agent, also be the IP address of static hometown proxy; Described mobile node also is used for the IP address according to the static hometown proxy of preserving, and connects with described static hometown proxy.
The described network equipment also is used to inquire about the information of self preserving, or obtains from the outside, and whether the IP address and this home agent that obtain home agent are the information of static hometown proxy.
The function of home agent realizes on P-GW among the native system embodiment, described mobile node is also preserved the IP address of described static P-GW and the corresponding relation of the service identification of current business when preserving the IP address of static hometown proxy, described mobile node also is used for checking according to the service identification of current business the IP address of the static P-GW that whether preserves correspondence.
Certainly, P-GW also is used for setting up Security Association with mobile node, and is UE distributing IP address, sets up binding relationship with UE; Whether IP address, this target P-GW of also being used for obtaining from the outside target P-GW are the information of static P-GW.
Except that P-GW and UE, system of the present invention also comprises:
GGSN (GGSN) is used for sending PCO to described UE (being mobile node), wherein carries the IP address and the static hometown proxy indication of home agent, and it is static hometown proxy that described static hometown proxy indication is used to indicate described home agent;
The non-3 GPP access network of trusting or the packet data gateway (ePDG) of evolution are used to UE to distribute Care-of Address (CoA), and local proxy information (as IP address and static hometown proxy indication) is provided; Also be used for sending IKEv2 message to described UE, wherein carry the IP address and the static hometown proxy indication of home agent, it is static hometown proxy that described static hometown proxy indication is used to indicate described home agent;
DHCP Server is used for sending dhcp message to described UE, wherein carries the IP address and the static hometown proxy indication of home agent, and it is static hometown proxy that described static hometown proxy indication is used to indicate described home agent;
DNS Server is used for sending the DNS Query Result to described UE, wherein carries the IP address and the static hometown proxy indication of home agent, and it is static hometown proxy that described static hometown proxy indication is used to indicate described home agent.
Need to prove, more than have among the network equipment (comprising P-GW, GGSN, ePDG, DHCP Server, DNS Server) of the IP address of notice UE home agent and static hometown proxy deixis, carried out the IP address of notice UE home agent and the function of static hometown proxy indication if any arbitrary network equipment, then other network equipments are no longer carried out this function.
In addition, described subscriber equipment (UE) also is used for setting up Security Association and binding relationship with P-GW, and obtains Care-of Address;
Home subscriber server HSS, the information that is used to preserve P-GW comprises whether the IP address of P-GW and this P-GW are static P-GW and corresponding service sign (APN);
Authentication and authorization charging server is used to carry out operations such as Certificate Authority and charging.
Example four
Fig. 5 is the flow chart according to the inventive method example four.
MN is established to the connection of initial HA, and initial HA finds it oneself is not the static HA of MN, gets access to the static HA of inner this MN that preserve or that get access to from the outside, should static state HA notice MN.
As shown in Figure 5, the static HA access method according to the embodiment of the invention may further comprise the steps:
S501 ', MN inserts access network, gets access to Care-of Address (CoA) from access network or couple in router;
S502 ', the IP address of the HA that MN inquiry is preserved, if what preserve is the IP address of static HA, then change execution in step 506 ', if the IP address of the static HA of the right and wrong of preserving, MN and initial HA (being non-static HA) set up Security Association;
Alternatively, initial HA can indicate MN to need home agent heavily to distribute in setting up the process of Security Association, also MN is issued in IP address and the static hometown proxy indication of target HA, and indicating this target HA is static HA, MN redirect this moment execution in step 506 '.
S503 ', MN are initiated to the Binding Update of initial HA, and initial HA replys binding acknowledgement and gives MN; Alternatively, initial HA can indicate MN to need home agent heavily to distribute in sending to the binding acknowledgement message of MN, simultaneously MN is issued in IP address and the static hometown proxy indication of target HA, and indicating this target HA is static HA, MN redirect this moment execution in step 506 ';
S504 ', initial HA finds it self is not the home agent of this MN, in the information that self preserves, find the local proxy information of this MN or obtain the local proxy information of this MN from outside (such as HSS), send home agent conversion indication to MN, the IP address of wherein containing target HA, and the static hometown proxy indication, it is static hometown proxy that described static hometown proxy indication is used to indicate described target home agent; MN preserves the IP address of this static state HA.
What S505 ', MN were initiated to initial HA removes to register Binding Update, and initial HA replys and goes to register binding acknowledgement message and give MN;
S506 ', MN and static HA set up Security Association, and static HA uses STATIC IP ADDRESSING to MN;
This static ip address can be to be kept among the static HA or static HA obtains from outside (such as HSS);
S507 ', MN send Binding Update to static HA, set up the binding of Care-of Address and the home address of MN at static HA; Static HA replys binding acknowledgement and gives MN.
In the present embodiment, follow-up when needing to connect once more after MN disconnects current connection in case MN has preserved the IP address of static hometown proxy HA, MN directly sets up Security Association with static HA according to the IP address of the static HA that self preserves.
In sum, because adopt the above embodiment of the present invention, can make the direct access static P-GW/HA of subscriber equipment and do not need to pass through once more the home agent transfer process.
In order to realize above method, the present invention also provides a kind of realization system of static hometown proxy access, and this realization system comprises the network equipment and mobile node,
The described network equipment is used to notify the IP address and the static hometown proxy indication of local proxy of mobile node, and it is static hometown proxy that described static hometown proxy indication is used to indicate described home agent;
Described mobile node, the IP address and the static hometown proxy indication that are used to receive and preserve described home agent, the IP address of also promptly preserving static hometown proxy; Described mobile node also is used for the IP address according to the static hometown proxy of preserving, and connects with described static hometown proxy.
Certainly, described home agent, also be used for setting up Security Association with mobile node, and be mobile node distributing IP address and set up binding relationship, also be used to inquire about the information of self preserving, or obtain from the outside, whether the IP address and this home agent that obtain home agent are the information of static hometown proxy.
Except that home agent and mobile node, system of the present invention also comprises:
Access network or couple in router are used to UE to distribute Care-of Address (CoA);
Described mobile node also is used for setting up Security Association and binding relationship with home agent, and obtains Care-of Address.
Among the present invention, " initial home agent " and " target home agent " are the notions of to know handoff procedure and defining in order to describe, the logical home agent that refers to that conversion is preceding of initial home agent, home agent after the logical finger conversion of target home agent, the target home agent may be a static hometown proxy, also may not be.Initial home agent judges that when the target home agent was static hometown proxy, sending the target home agent was the indication of static hometown proxy, so that mobile node identification and preservation.
The present invention also provides a kind of mobile node, and described mobile node is used to receive the IP address and the static hometown proxy indication of the home agent that the network equipment sends, and it is static hometown proxy that described static hometown proxy indication is used to indicate described target home agent;
Described mobile node also is used to preserve the IP address of described home agent, also is the IP address of static hometown proxy; Described mobile node also is used for the IP address according to the static hometown proxy of preserving, and directly connects with described static hometown proxy.
Described mobile node also is used to check the IP address of himself whether preserving static hometown proxy, directly to set up Security Association with the static hometown proxy of preserving the IP address.
The function of described home agent realizes that by packet data network gateway P-GW the IP address of described static hometown proxy refers to the IP address of static P-GW; Described mobile node is when preserving the IP address of described static P-GW, also be used to preserve the corresponding relation of the service identification of the IP address of described static P-GW and current business, when described mobile node is checked, be to check the IP address of whether preserving corresponding static P-GW according to the service identification of current business.
The implementation method of static hometown proxy access of the present invention, system and mobile node, when static hometown proxy switches, the IP address that is about to static hometown proxy is kept at mobile node, when mobile node connects once more, mobile node can be according to the IP address of the static hometown proxy of preserving, directly connect with described static hometown proxy, carry out the process of HA conversion or HA inquiry when avoiding mobile node to be connected to network once more once more, effectively reduce the load of network and UE, accelerate the speed of UE access service.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with the general calculation device, they can concentrate on the single calculation element, perhaps be distributed on the network that a plurality of calculation element forms, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in the storage device and carry out by calculation element, perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (11)
1. the implementation method of a static hometown proxy access is characterized in that, this method comprises:
(a) the IP address of network equipment notice local proxy of mobile node and static hometown proxy indication, it is static hometown proxy that described static hometown proxy indication is used to indicate described home agent;
(b) described mobile node is preserved the IP address of described home agent, also is the IP address of static hometown proxy;
(c) described mobile node connects with described static hometown proxy according to the IP address of the static hometown proxy of preserving.
2. method according to claim 1, it is characterized in that the described network equipment is one of following: the packet data gateway ePDG of packet data network gateway P-GW, GPRS gateway service node GGSN, evolution, Dynamic Host Configuration Protocol server DHCP Server, domain name system server DNS Server.
3. method as claimed in claim 1 or 2, it is characterized in that: the function of described home agent realizes at grouped data network gateway P-GW, the IP address of described static hometown proxy refers to the IP address of static P-GW, and mobile node described in the step (b) is also preserved the corresponding relation of the service identification of the IP address of described static P-GW and current business simultaneously.
4. as method as described in the claim 3, it is characterized in that: described mobile node also is used for checking the IP address of whether preserving corresponding static P-GW according to the service identification of current business.
5. the realization system of a static hometown proxy access, this system comprises the network equipment and mobile node, it is characterized in that:
The described network equipment is used to notify the IP address and the static hometown proxy indication of local proxy of mobile node, and it is static hometown proxy that described static hometown proxy indication is used to indicate described home agent;
Described mobile node is used to receive IP address and the static hometown proxy indication that the network equipment is notified its home agent, and the IP address of preserving described home agent, also is the IP address of static hometown proxy; Described mobile node also is used for the IP address according to the static hometown proxy of preserving, and connects with described static hometown proxy.
6. system as claimed in claim 5 is characterized in that: described mobile node also is used to check the IP address of himself whether preserving static hometown proxy, directly to connect with the static hometown proxy of preserving the IP address.
7. system as claimed in claim 5, it is characterized in that the described network equipment is one of following: the packet data gateway ePDG of packet data network gateway P-GW, GPRS gateway service node GGSN, evolution, Dynamic Host Configuration Protocol server DHCP Server, domain name system server DNS Server.
8. as the arbitrary described system of claim 5-7, it is characterized in that the function of described home agent realizes that by packet data network gateway P-GW the IP address of described static hometown proxy refers to the IP address of static P-GW; Described mobile node also is used to preserve the corresponding relation of the service identification of the IP address of described static P-GW and current business when preserving the IP address of described static P-GW; Described mobile node also is used for checking the IP address of whether preserving corresponding static P-GW according to the service identification of current business.
9. system as claimed in claim 5 is characterized in that, the described network equipment also is used to inquire about the information of self preserving, or obtains from the outside, and whether the IP address and this home agent that obtain home agent are the information of static hometown proxy.
10. a mobile node is used for the access static home agent, it is characterized in that:
Described mobile node is used to receive IP address and the static hometown proxy indication that the network equipment is notified its home agent, and it is static hometown proxy that described static hometown proxy indication is used to indicate described home agent;
Described mobile node also is used to preserve the IP address of described home agent, also is the IP address of static hometown proxy; Described mobile node also is used for the IP address according to the static hometown proxy of preserving, and connects with described static hometown proxy.
11. mobile node as claimed in claim 10 is characterized in that: described mobile node also is used to check the IP address of himself whether preserving static hometown proxy, directly to set up Security Association with the static hometown proxy of preserving the IP address.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910134003A CN101754175A (en) | 2008-12-19 | 2009-03-24 | Static hometown proxy access realizing method, system and mobile node |
| PCT/CN2009/073569 WO2010108349A1 (en) | 2009-03-24 | 2009-08-27 | Implementation method, system and mobile node for accessing the static home agent |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810188528.0 | 2008-12-19 | ||
| CN200910134003A CN101754175A (en) | 2008-12-19 | 2009-03-24 | Static hometown proxy access realizing method, system and mobile node |
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| CN101754175A true CN101754175A (en) | 2010-06-23 |
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| WO (1) | WO2010108349A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1322090A2 (en) * | 2001-11-30 | 2003-06-25 | Sonera Oyj | Mechanism for simplifying roaming in a communications system |
| CN101184103A (en) * | 2007-12-19 | 2008-05-21 | 深圳市戴文科技有限公司 | Method for accessing wireless service server through mobile terminal equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US7343158B2 (en) * | 2003-04-16 | 2008-03-11 | Nortel Networks Limited | Home agent redirection for mobile IP |
| JP2006203560A (en) * | 2005-01-20 | 2006-08-03 | Matsushita Electric Ind Co Ltd | Ha address acquisition method and inter-heterogeneous-network interconnection system |
| CN101330453A (en) * | 2007-06-19 | 2008-12-24 | 中兴通讯股份有限公司 | Method for obtaining hometown proxy address for wireless network |
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- 2009-08-27 WO PCT/CN2009/073569 patent/WO2010108349A1/en active Application Filing
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1322090A2 (en) * | 2001-11-30 | 2003-06-25 | Sonera Oyj | Mechanism for simplifying roaming in a communications system |
| CN101184103A (en) * | 2007-12-19 | 2008-05-21 | 深圳市戴文科技有限公司 | Method for accessing wireless service server through mobile terminal equipment |
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