CN100344199C - System of radio local network mobility management and its method - Google Patents
System of radio local network mobility management and its method Download PDFInfo
- Publication number
- CN100344199C CN100344199C CNB2003101167282A CN200310116728A CN100344199C CN 100344199 C CN100344199 C CN 100344199C CN B2003101167282 A CNB2003101167282 A CN B2003101167282A CN 200310116728 A CN200310116728 A CN 200310116728A CN 100344199 C CN100344199 C CN 100344199C
- Authority
- CN
- China
- Prior art keywords
- address
- network
- user terminal
- foreign agent
- home
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000007726 management method Methods 0.000 claims abstract description 19
- 230000005540 biological transmission Effects 0.000 claims description 17
- 238000004891 communication Methods 0.000 claims description 4
- 238000011144 upstream manufacturing Methods 0.000 claims description 4
- 230000002708 enhancing effect Effects 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 description 53
- 238000007600 charging Methods 0.000 description 11
- 238000005516 engineering process Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 9
- 238000013475 authorization Methods 0.000 description 7
- 230000000977 initiatory effect Effects 0.000 description 5
- 230000009467 reduction Effects 0.000 description 4
- 238000001228 spectrum Methods 0.000 description 4
- 230000003068 static effect Effects 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/26—Network addressing or numbering for mobility support
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/04—Large scale networks; Deep hierarchical networks
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/10—Small scale networks; Flat hierarchical networks
- H04W84/12—WLAN [Wireless Local Area Networks]
Landscapes
- Engineering & Computer Science (AREA)
- Databases & Information Systems (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The present invention discloses a network mobility management system for wireless local networks, and a method thereof for realizing service continuity at the time of mobile terminal roaming and simultaneously enhancing the work efficiency of FA of mobile IP and improving network performance, which relates to the intercommunication of WLAN and wireless wide area networks. The WLAN network mobility management method and the system thereof comprise user terminals, a WLAN access network, a 3GPP visiting network and a 3GPP attribution network, wherein the user terminals are orderly connected and are connected with the access network in a wireless mode; the attribution network comprises HA; two-stage FA exists in the system; the first stage FA is arranged in the access network, is used for distributing LCoA to the user terminals and carries out address replacement and data forwarding between the user terminals and the second stage FA; the second stage FA is arranged in the visiting network, is used for distributing RCoA to the user terminals and binding RCoA and LCoA of the user terminals and carries out address replacement and data forwarding between the first grade FA and HA.
Description
Technical field
The present invention relates to the intercommunication of WLAN and wireless wide area network, particularly wlan network mobile management.
Background technology
The development of wireless network is at a tremendous pace at present.Wireless network can roughly be divided into WLAN (wireless local area network) (Wireless Local Area Network is called for short " WLAN ") and wireless wide area network.
WLAN (wireless local area network) WLAN is to use radio frequency, microwave or infrared ray, the communication system of interconnect equipment in a limited territorial scope, along with the user is more and more higher to the requirement of wireless access rate, the application of WLAN is more and more wider, and it comprises standards such as basic 802.11,802.11b, 802.11a, 802.11g, bluetooth.Wherein, 802.11b is present most widely used standard, and it works in the 2.4G frequency range, adopts direct sequence exhibition (Direct Sequence frequently
Spread Spectrum is called for short " DSSS ") the spread spectrum mode, it is 11Mbps that the highest message transmission rate is provided.The 802.11a standard of releasing the same period with 802.11b then works in the 5.4G frequency range, adopt OFDM (Orthogonal Frequency Division Multiplexing, be called for short " OFDM ") the spread spectrum mode, provide the highest message transmission rate to reach 54Mbps.Yet because both compatibility are not good, what become main flow so most possibly replace 802.11b is the 802.11g standard, and it works in the 2.4G frequency range equally, adopts OFDM spread spectrum mode, and the flank speed that provides also is 54Mbps.802.11a/b/g be present only 3 kinds of WLAN wireless standards through the WiFi authentication.Although there is multiple standards, most of WLAN uses internetworking agreement (Internet Protocol is called for short " IP ") packet data package.For a Wireless IP network, its concrete WLAN access technology that adopts generally is transparent for the IP on upper strata.Its basic structure all is to utilize WAP (wireless access point) (AccessPoint is called for short " AP ") to finish the wireless access of user terminal, connects to form the IP transmission network by network control and connection device.
The another kind of wireless network corresponding with WLAN is wireless wide area network, generally comprised: GPRS (General Packet Radio Service, be called for short " GPRS "), code division multiple access (CodeDivision Multiple Access, be called for short " CDMA "), Wideband Code Division Multiple Access (WCDMA) (Wideband CodeDivision Multiple Access, be called for short " WCDMA "), time division duplex-S-CDMA (TimeDivision Synchronous Code Division Multiple Access SCDMA, be called for short " TD-SCDMA ") and CDMA 2000 (Code Division Multiple Access 2000 is called for short " CDMA2000 ").
In recent years, WLAN and the intercommunication of wireless wide area network become the emphasis of relevant research.
At third generation partner program (3rd Generation Partnership Project, abbreviation " 3GPP ") in the standardization body, user terminal can link to each other with internet (Internet), Intranet (Intranet) by the access network of WLAN, can also be connected with the home network of 3GPP system or the accesses network of 3GPP system via the WLAN access network.
When inserting in this locality, the WLAN access network links to each other with the home network of 3GPP, and system construction drawing as shown in Figure 1.The local connecting system 100 of the 3GPP-WLAN Internet is by user terminal 10, wlan access network (Wireless Local Area Network Access Network, be called for short " WLANAN ") 20 and 3GPP home network 30 form, wherein 3GPP home network 30 is authenticated by 3GPP, authorize and record keeping server (Authentication Authorization and Accounting Server, be called for short " AAA Server ") 31, home network packet data gateway (Packet Data Gateway, be called for short " PDG ") 32, home signature user server (Home Subscriber Server, be called for short " HSS ") 33, attaching position register (Home Location Register, be called for short " HLR ") 34, ownership charging critical point (Charging Gateway, be called for short " CGw ") and charging information collecting function (Charging connection function, be called for short " CCF ") 35, Online Charging System (OnlineCharging System is called for short " OCS ") 36 is formed.
WLAN AN 20 is used to provide the access function of user terminal 10 to wireless network.
3GPP aaa server 31 is responsible for authentication, mandate and the chargings to the user, and the charging information collecting that WLAN AN 20 is sent here also sends charge system to.
HSS 33 is major databases of all contracted users, be used for supporting such as GPRS serving GPRS support node (Serving GPRS Support Node, be called for short " SGSN ") and CSCF (Call State Control Function, abbreviation " CSCF ") the necessary signatory relevant information of and so on processing calling or session is the key of supporting user mobility and calling control.
HLR 34 is used to store subscriber-related data, comprises user's roaming capacity, subscribed services and supplementary service, and in addition, it also provides user terminal 10 actual roamings on-site information.
Ownership CGw and CCF 35 are used to receive and write down the customer charging information that network transmits.
OCS 36 can transmit online cost information according to online charging user's expense situation indication network is periodic, and adds up and control.
When WLAN user terminal 10 wishes directly to insert Internet/Intranet, after user terminal 10 was finished the access authentication mandate by WLAN AN 20 with 3GPP aaa server 31, user terminal 10 can be linked into Internet/Intranet by WLAN AN 20.
If WLAN user terminal 10 also wishes to insert the 3GPP grouping commutative field service, then can be further to the business of 3GPP home network application intercommunication scene 3 (Scenario3), that is: WLAN user terminal 10 is initiated the service authorization request of intercommunication scene 3 to the 3GPP of home network aaa server 31, service authentication and mandate are carried out in 31 pairs of these service authorization requests of 3GPP aaa server, if success, send access grant message then for user terminal 10, and distribute corresponding home network PDG 32 for user terminal 10, after setting up the tunnel between user terminal 10 and the home network PDG 32 that distributed, can insert the 3GPP grouping commutative field service.Simultaneously, ownership CGw and CCF 35 and OCS 36 are according to the network operating position recording gauge charge information of user terminal 10.
When roaming inserted, WLAN AN 20 linked to each other with 3GPP accesses network 40, the part entity in the 3GPP accesses network 40 respectively with 3GPP home network 30 in corresponding entity interconnect, as shown in Figure 2.3GPP-WLAN Internet roaming connecting system 200 is made up of user terminal 10, WLAN AN 20,3GPP home network 30,3GPP accesses network 40.Wherein the composition of 3GPP home network 30 as mentioned above, 40 of 3GPP accesses network insert critical point (Wireless Local Area Network Access Gateway is called for short " WAG ") 42, accesses network PDG 43, access region CGw and CCF 44 by 3GPP AAA agency 41, WLAN (wireless local area network) and form.
3GPP AAA agency 41 in the 3GPP accesses network 40 links to each other with the 3GPP aaa server 31 in the 3GPP home network 30, be used for authentication, mandate and the charging of associated treatment to the roamer, the charging information collecting that WLAN AN 20 is sent here also sends charge system to.
WAG 42 in the 3GPP accesses network 40 links to each other with home network PDG32 in the 3GPP home network 30, is used for the collaborative transfer of data of being responsible for roaming user data from WLAN AN 20 to 3GPP networks or other packet networks.
When WLAN user terminal 10 wishes directly to insert Internet/Intranet, user terminal 10 can be by 3GPP aaa server 31 applications of the agency of the 3GPP AAA in the accesses network 41 in home network, after obtaining Certificate Authority, can be linked into Internet/Intranet.
If user terminal 10 is also wished application intercommunication scene 3 business, be linked into the 3GPP grouping commutative field service, then user terminal 10 need be initiated the service authorization process to the 3GPP of home network aaa server 31 by accesses network, after authorizing successfully, 3GPP aaa server 31 distributes corresponding home network PDG 32 for user terminal 10, after setting up the tunnel between the home network PDG 32 of user terminal 10 by WAG in the accesses network 42 and distribution, user terminal 10 gets final product the 3GPP grouping commutative field service of access belonging network.
From said process as can be seen, user terminal 10 is at after one or one group of service authorization success and setting up passage, and user terminal 10 has just had corresponding IP address, just can initiate the visit to business.At this moment, user terminal 10 can be to the related service equipment sending data of business; And because the IP address of user terminal 10 has been carried out the route registration when inserting, therefore, user terminal 10 also can be accepted business service equipment in the network or other user terminal relevant with business to this user terminal 10 transmission data.
In addition because user terminal 10 is movably, therefore will inevitably relate to user terminal 10 roam into equipment in the problem of different network area, IP address is set.Mobile IP moves problem with solving above-mentioned the Internet nodes.It is a kind of in the scheme that locomotive function is provided on the internet, node can be connected on any link with a permanent IP address, and can keep ongoing communication when handoff links.In the related problems of mobile IP, mobile management is most important.Among the existing mobile IP, generally comprise a home agent (Home Agent is called for short " HA ") and a Foreign Agent (Foreign Agent is called for short " FA ").Home agent HA is used to intercept the information that mails to user terminal in home network; Foreign agent FA is used for receiving information from home agent, and information is mail to user terminal in accesses network.
In actual applications, there is following problem in such scheme: if do not use mobile IP technology: one, although user terminal 10 has inserted wlan network, but also by home network PDG 32 set up with Network between passage be connected, or also the passage of not setting up the business of organizing certain or certain, and have this moment service needed to send data to this user terminal 10, at this moment just can't find user terminal 10; Two, user terminal 10 moves between WLAN, and new WLAN Access Network distributes different IP address substitutions can cause business and is connected interruption, thereby needs to initiate again professional.
If use general mobile IP technology: along with moving of portable terminal 10, WLAN AN 20 frequently registers the waste Internet resources to home agent HA; Perhaps WLAN AN20 can't cause and can't communicate by letter to WAG 42 registrations.
Cause the main cause of this situation to be, do not support roaming function when communicating based on the network of ICP/IP protocol; General mobile IP technology has only a foreign agent FA, can't handle WLAN AN 20 coverages little and WLAN AN 20, WAG 42 simultaneously not in the problem of same operator.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of system and method thereof of wireless lan network mobile management, makes portable terminal when roaming, can realize professional continuity, and improve the operating efficiency of the FA of mobile IP simultaneously, improves network performance.
In order to solve the problems of the technologies described above, the invention provides a kind of system of wireless lan network mobile management, comprise user terminal, wlan access network, third generation partner program accesses network and home agent, wherein said user terminal is connected with wireless mode with described access network, described home agent is used to described user's data communication that route is provided, be provided with the two-stage Foreign Agent in the described system, wherein
First order Foreign Agent is arranged in the described access network, is used for distributing local Care-of Address to described user terminal, and carries out the replacement of address and delivering of data between described user terminal and described second level Foreign Agent;
Second level Foreign Agent is arranged in the described accesses network, be used for to described user terminal range of distribution Care-of Address, with the described regional care-of address and the described local Care-of Address binding of described user terminal, and between described first order Foreign Agent and described home agent, carry out the replacement of address and delivering of data.
Wherein, described second level Foreign Agent inserts in the critical point in the WLAN (wireless local area network) of described accesses network.
The present invention also provides a kind of wireless lan network mobility management method, comprises following steps when user terminal is in third generation partner program accesses network:
When up, as source address, successively twice tunnel transmission by first order Foreign Agent and second level Foreign Agent sends to home agent with upstream data to described user terminal with privately owned address;
Described home agent sends to business network after the source address of described upstream data is replaced to publicly-owned address;
When descending, described business network sends downlink data with described publicly-owned address to described home agent;
Described home agent replaces to the described privately owned address of described user terminal with the described publicly-owned address of described downlink data, and successively twice tunnel transmission by described second level Foreign Agent and described first order Foreign Agent sends to described user terminal with described downlink data then.
Wherein, described method also comprises following steps:
After described user terminal is logined by described accesses network and is passed through authentication,
Described first order Foreign Agent distributes local Care-of Address to described user terminal;
Described second level Foreign Agent is to described user terminal range of distribution Care-of Address;
Described user terminal is registered described local Care-of Address to described second level Foreign Agent, and described second level Foreign Agent is with described local Care-of Address and the binding of described regional care-of address;
Described user terminal is registered described regional care-of address to described home agent, and described home agent is with the described privately owned address binding of described regional care-of address and described user terminal.
When up, the tunnel transmission of described first order Foreign Agent comprises following substep:
Described first order Foreign Agent will replace with described local Care-of Address from the data source address of described user terminal, and send to described second level Foreign Agent;
When up, the tunnel transmission of described second level Foreign Agent comprises following substep:
Described second level Foreign Agent will replace with described regional care-of address from the data source address of described first order Foreign Agent, and send to described home agent;
When descending, the tunnel transmission of described second level Foreign Agent comprises following substep:
Described second level Foreign Agent will replace to described regional care-of address from the destination address of the data of described home agent, and send to described first order Foreign Agent;
When descending, the tunnel transmission of described first order Foreign Agent comprises following substep:
Described first order Foreign Agent will replace to described local Care-of Address from the destination address of the data of described second level Foreign Agent, and send to described user terminal.
Described method also comprises following steps:
After described user terminal passed through the authentication of home network, described home network distributed described privately owned address to described user terminal;
Described home network is bound described privately owned address and described publicly-owned address, and upgrades the DNS of described home network.
Described method also comprises following steps:
When described business network was initiatively initiated business, described business network obtained the described publicly-owned address of described user terminal from the DNS of described home network.
By relatively finding that technical scheme difference with the prior art of the present invention is, uses mobile IP technology and principle and realizes runing the wlan network mobile management, realizes classification FA framework, i.e. LFA and RFA, can place respectively with WLAN AN and WAG in.
Difference on this technical scheme has brought comparatively tangible beneficial effect, promptly by using mobile IP technology, can guarantee that user terminal need not to change the IP address under the situation of roaming or domain name just can keep getting in touch with the two-way services of home services network.
By adopting classification FA framework, prevented that FA from can effectively reduce the signaling load between FA and the HA because of WLAN AN coverage is little frequently to the situation of HA registration, improve bandwidth availability ratio, improve the support of network to real-time service.
Along with the improvement of mobile management, can effectively expand the management mode of 3GPP-WLAN network.
Description of drawings
Fig. 1 is the local connecting system figure of the 3GPP-WLAN Internet;
Fig. 2 is 3GPP-WLAN Internet roaming connecting system figure;
Fig. 3 is the system diagram of the classification FA framework of the 3GPP-WLAN Internet according to an embodiment of the invention;
Fig. 4 is the flow chart of user terminal according to an embodiment of the invention by the local access public network service of private ip of the home network of dynamic assignment;
Fig. 5 is the flow chart of user terminal according to an embodiment of the invention by the private ip roaming access public network service of the home network of dynamic assignment.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with accompanying drawing.
The present invention realizes the mobile management of operation wireless network by using a kind of mobile IP technology, and employing is the framework of a kind of classification FA.Be exactly that the gateway device of operation home network can be used as HA or HA Proxy specifically; The gateway device of operation accesses network and WLAN (wireless local area network) insert gateway device can realize classification FA framework with this respectively as other FA of different levels level.
Referring now to Fig. 3, the classification FA framework of the 3GPP-WLAN Internet according to an embodiment of the invention is described.As shown in the figure, system is made up of user terminal 10, WLAN AN20,3GPP home network 30,3GPP accesses network 40, business network 50, outer net name server (Domain NameServer is called for short " DNS ") 60.Wherein, 3GPP home network 30 is made up of home network PDG 32, home network DNS 37; 3GPP accesses network 40 is made up of WAG 42, access region PDG 43.
What deserves to be explained is that HA 70 (or HA proxy) is placed on the home network PDG 32, the regional Foreign Agent of classification FA framework (Regional Address Agent, abbreviation " RFA ") 80 is placed on the WAG 42, the local Foreign Agent of classification FA framework (Local Address Agent, abbreviation " LFA ") 90 be placed on the WLAN AN 20, WLAN AN 20 is the acquiescence critical point of user terminal 10.Mainly be two-stage FA in the present invention, LFA and RFA are respectively the first order and second level FA.
Home agent HA 70 is home address (Home Address) and corresponding regional care-of address (Regional Care-of Address, be called for short " RCoA ") bind, and intercept the information that mails to user terminal 10, information is mail on the corresponding RFA 80.
Zone Foreign Agent RFA 80 can give user terminal range of distribution Care-of Address RCoA, RCoA and corresponding local Care-of Address (Local Care-of Address, be called for short " LCoA ") binding, reception information from the HA 70, and corresponding information mail on the LFA 90.
Local Foreign Agent LFA 90 can distribute local Care-of Address LCoA to user terminal, goes up reception information from RFA80, and information is mail on the relevant user terminals.
Describe several embodiment of the 3GPP-WLAN Internet of realizing above-mentioned classification FA framework below in detail.
The embodiment of user terminal with the business network on the inner private IP address visit public network that uses of the home network of dynamic assignment at first described.
With reference to Fig. 4, when user terminal was in home network, handling process was as follows:
In step 400, user terminal 10 is at first set up wireless connections at home network, and after passing through the authentication of home network network, home network PDG 32 user terminal 10 for this reason distributes the inner private IP address of using of a home network as Home Address.
Then enter step 401, the network address translation of home network PDG 32 (Network AddressTranslation, abbreviation " NAT ") function can be bound private IP address and a public ip address of this user terminal 10, and the domain-name information of this public ip address and user terminal 10 is signed in among the home network DNS 37.
To step 405, the professional situation of user terminal 10 initiations is described below with reference to the step 402 among Fig. 4:
At first enter step 402.This moment, user terminal 10 was that source address sends to data on the home network PDG 32 with the private ip, entered step 403 then.
In step 403, the nat feature on the home network PDG 32 can be converted to publicly-owned source IP address with the privately owned source IP address of user terminal data bag, and data are mail to business network 50.
When business network 50 passes data toward user terminal 10, enter in the step 404, data based public ip address mails on the corresponding home network PDG 32.
Then enter step 405, relevant home network PDG 32 replaces with private IP address with this publicly-owned address, and sends to related user terminal 10.
, describe business network 50 and initiate professional process to step 411 below with reference to the step 406 among Fig. 4:
At first should enter step 406, business network 50 will be inquired the IP address of user terminal 10.Its process is the domain name retrieval outer net DNS 60 of business network 50 by user terminal 10, and outer net DNS 60 can inquire home network DNS 37.Enter step 407 then.
In the step 407, home network DNS 37 can return the public ip address of that binding to business network 50.
In the step 408, business network 50 sends to this IP address with data, promptly is routed on the home network PDG 32.
Then, carry out step 409, home network PDG 32 changes by NAT again, and private ip is replaced publicly-owned IP, hands to relevant user terminals 10 again.
When user terminal 10 sends data to business network 50, enter in the step 410, it as source address, sends to home network PDG 32 with privately owned address, enters step 411 then.
In step 411, home network PDG 32 changes by NAT, and publicly-owned IP is replaced private ip, hands to business network 50 again.
Those of ordinary skill in the art are appreciated that, be to initiate business by user terminal 10 initiation business or by business network 50, situation when depending on practical application, step 403-406 and the interchangeable order of step 407-411 and do not influence the spirit and scope of the invention.
If user terminal 10 continues with the business network 50 on the inner private IP address visit public network that uses of the home network of dynamic assignment, but is in accesses network this moment, its processing procedure as shown in Figure 5.
Carry out moving to accesses network in the process if user terminal 10 is business, user terminal 10 still keeps its Home Address so, but this moment skips steps 500 and 501, enter step 502.
If user terminal 10 is at the accesses network logging in network, it will enter step 500 so.
In the step 500, user terminal 10 is at first set up wireless connections, and after the authentication by home network and accesses network, home network PDG 32 user terminal 10 for this reason distributes the private IP address of using in the home network as Home Address.
Enter step 501 then, the nat feature of home network PDG 32 can be bound private IP address and a public ip address of this user terminal 10 at this moment, and the domain-name information of this public ip address and user terminal 10 is signed in among the home network DNS 37.
Then enter step 502, WLAN AN 20 distributes to 10 1 local Care-of Address LCoA of user terminal as LFA 90, and this address can be publicly-owned or private IP address.
In step 503, WAG 42 distributes to 10 1 regional care-of address RCoA of user terminal as RFA 80, and this address can be publicly-owned or private IP address.
Enter step 504 then, user terminal 10 can be sent out register requirement to the RFA 80 among the WAG 42, and request RFA 80 binds together RCoA and LCoA.
Enter step 505 again, WAG 42 can send out register requirement to the HA70 in home network PDG 32, and request HA 70 binds together the Home Address of RCoA and user terminal 10.HA 70 can intercept and capture all and mail to the data of user terminal 10 and be transmitted to RFA 80.User terminal 10 uses RCoA as real Care-of Address.
What deserves to be explained is, when between the different WLAN AN of user terminal 10 in accesses network when mobile, new LFA 90 can distribute new LCoA for user terminal 10, user terminal 10 can send the binding relationship that register requirement is upgraded LCoA and RCoA to RFA 80, but as long as user terminal 10 does not also leave original RFA 80, this RFA 80 just can not initiate register requirement to HA 70.
To step 513, the process of user terminal 10 initiation Business-to-Business networks 50 is described below with reference to the step 506 among Fig. 5:
In step 506, user terminal 10 is a source address with Home Address, sends data to the acquiescence critical point LFA 90 of WLAN AN 20.
Then, enter step 507, LFA 90 sets up the tunnel to RFA 80, for example is the Site-to-Site tunnel, and data are sent to RFA 80.
Then be step 508, the tunnel that RFA 80 is established to home network PDG 32 again sends to HA 70 with data.
Arrive step 509 then, HA 70 changes the public ip address that privately owned source IP address is converted to binding through the NAT of home network PDG 32, and data are handed to business network 50 by public network.
In the step 510, expression is sent among the corresponding home network PDG 32 according to publicly-owned IP by the data of business network 50 to user terminal 10.
Then enter step 511, the nat feature of home network PDG 32 is converted to privately owned source IP address with public ip address, and by the tunnel, data is passed to the RFA 80 of WAG 42.
In step 512, RFA 80 sets up the tunnel to LFA 90, and data are sent to LFA 90 then.
In step 513, LFA 90 is sent to the data of receiving on the user terminal 10.
So far, the process analysis procedure analysis of user terminal 10 initiation Business-to-Business networks 50 is finished.
To step 523, illustrate that business network 50 is initiated to the process of the business of user terminal 10 below with reference to the step 514 among Fig. 5:
In step 514, business network 50 can be by the domain name retrieval outer net DNS 60 of user terminal 10, and outer net DNS 60 can inquire home network DNS 37.
Enter step 515 then, home network DNS 37 can return the public ip address of that binding at this moment.
Then be step 516, business network 50 sends to this IP address with data, promptly is routed to home network PDG 32.
After this enter step 517, because home network PDG 32 is HA 70, it knows RFA 80 positions that user terminal 10 is present, so it is by being established to the tunnel of RFA 80, and as the MIP tunnel, RFA 80 is handed to data in the IP-in-IP tunnel.
Be step 518 then, LFA 90 is handed to data in RFA 80 takes out data and sets up RFA 80 to LFA 90 again from the tunnel tunnel.
Be step 519 at last, LFA 90 directly hands to user terminal 10 take out data from the tunnel after again.
By step 520 beginning, after the professional initiation of expression, 10 data of user terminal are to business network 50.
In step 520, user terminal 10 is a source address with Home Address, sends data to the acquiescence critical point LFA 90 of WLAN AN 20.
Then, enter step 521, LFA 90 sets up the tunnel to RFA 80, for example is the Site-to-Site tunnel, and data are sent to RFA 80.
Then be step 522, the tunnel that RFA 80 is established to home network PDG 32 again sends to HA 70 with data.
Arrive step 523 then, HA 70 changes the public ip address that privately owned source IP address is converted to binding through the NAT of home network PDG 32, and data are handed to business network 50 by public network.
Use the middle private IP address visit mobile VPN of Virtual Private Network (Virtual PrivateNetworking is called for short " the VPN ") network of dynamic assignment to explain with user terminal 10 below for another embodiment.
In the present embodiment, user terminal 10 is after passing through the authentication of home network network, and the home network PDG 32 that connects outside mobile VPN in the home network distributes the private IP address of using in the mobile VPN as Home Address can for this user terminal 10 as HA 70Proxy.In addition, LFA 90, and the setting of RFA 80 is all identical with last embodiment with running.Those of ordinary skill in the art are appreciated that when private IP address is visited the mobile VPN network in the VPN of user terminal 10 use dynamic assignment, can adopt different Home Address methods to set up, and not influence the spirit and scope of the invention.
Be that an embodiment explains then with the business network 50 on the public ip address visit public network of user terminal 10 usefulness static allocation.
In the present embodiment, what user terminal 10 adopted is the public ip address of static allocation, therefore when access belonging network and accesses network, saved the step of public network IP and private ip binding, and to the not directly influence of all the other steps.Those of ordinary skill in the art are appreciated that user terminal can adopt the publicly-owned IP access service network of static allocation, and do not influence the spirit and scope of the invention.
From top several embodiment, those of ordinary skill in the art are appreciated that the Home Address of user terminal 10 can be dynamic, also can be static, can be privately owned, also can be publicly-owned, and not influence the spirit and scope of the invention.
In real Operation Network, user terminal 10 is through behind the Authentication Authorization, may and WAG
42 keep corresponding relation, below are illustrated with an embodiment.When user terminal 10 is in accesses network, if user terminal 10 keeps corresponding relation with WAG 42 after mandate, the then function of LFA 90 very reduction, it distributes a LCoA as just an address agency for user terminal.WAG 42 distributes to 10 1 RCoA of user terminal as RFA 80.User terminal 10 can not sent out register requirement again and give WAG 42, because WAG 42 will bind together RCoA and LCoA after registration finishes automatically.The reason that this situation occurs is often because WLAN AN 20 and WAG42 are the operations of same company, so the function of LFA 90 can be weakened.Those of ordinary skill in the art are appreciated that at user terminal 10 and WAG 42 and keep under the situation of corresponding relation that the reduction of LFA 90 functions does not influence the spirit and scope of the invention.
In the network of real operation, user terminal 10 may keep corresponding relation with WAG42, home network PDG 32 through behind the Authentication Authorization.In such cases: because user terminal 10 and WAG42, corresponding relation is all arranged between the home network PDG 32, therefore, as long as external network can send to data home network PDG 32, because the existence of corresponding relation is so home network PDG 32 can be easy to data are handed to user terminal 10.Home network PDG 32 only serves as a HAProxy at this moment, and the FA function of WAG 42 and WLAN AN 20 all obtains reduction, need not to realize the function of real FA, and their only are responsible for distributing the interior IP address of using of corresponding scope to get final product.The tunnel that no longer needs to set up both direction between home network PDG32 and the WAG 42, therefore this embodiment has just used the principle of MIP in fact, does not use the technology of MIP.Those of ordinary skill in the art are appreciated that at user terminal 10 and WAG 42, home network PDG 32 and all keep under the situation of corresponding relation that the reduction of LFA 90, RFA 80 functions does not influence the spirit and scope of the invention.
Though by reference some preferred embodiment of the present invention, the present invention is illustrated and describes, but those of ordinary skill in the art should be understood that, can do various changes to it in the form and details, and the spirit and scope of the present invention that do not depart from appended claims and limited.
Claims (7)
1. the system of a wireless lan network mobile management, comprise user terminal, wlan access network, third generation partner program accesses network and home agent, wherein said user terminal is connected with wireless mode with described access network, described home agent is used to described user's data communication that route is provided, it is characterized in that, be provided with the two-stage Foreign Agent in the described system, wherein
First order Foreign Agent is arranged in the described access network, is used for distributing local Care-of Address to described user terminal, and carries out the replacement of address and delivering of data between described user terminal and second level Foreign Agent;
Second level Foreign Agent is arranged in the described accesses network, be used for to described user terminal range of distribution Care-of Address, with the described regional care-of address and the described local Care-of Address binding of described user terminal, and between described first order Foreign Agent and described home agent, carry out the replacement of address and delivering of data.
2. the system of wireless lan network mobile management according to claim 1 is characterized in that, the WLAN (wireless local area network) that described second level Foreign Agent is arranged on described accesses network inserts in the critical point.
3. a wireless lan network mobility management method is characterized in that, comprises following steps when user terminal is in third generation partner program accesses network:
When up, as source address, successively twice tunnel transmission by first order Foreign Agent and second level Foreign Agent sends to home agent with upstream data to described user terminal with privately owned address;
Described home agent sends to business network after the source address of described upstream data is replaced to publicly-owned address;
When descending, described business network sends downlink data with described publicly-owned address to described home agent;
Described home agent replaces to the described privately owned address of described user terminal with the described publicly-owned address of described downlink data, and successively twice tunnel transmission by described second level Foreign Agent and described first order Foreign Agent sends to described user terminal with described downlink data then.
4. wireless lan network mobility management method according to claim 3 is characterized in that, described method also comprises following steps:
After described user terminal is logined by described accesses network and is passed through authentication,
Described first order Foreign Agent distributes local Care-of Address to described user terminal;
Described second level Foreign Agent is to described user terminal range of distribution Care-of Address;
Described user terminal is registered described local Care-of Address to described second level Foreign Agent, and described second level Foreign Agent is with described local Care-of Address and the binding of described regional care-of address;
Described user terminal is registered described regional care-of address to described home agent, and described home agent is with the described privately owned address binding of described regional care-of address and described user terminal.
5. wireless lan network mobility management method according to claim 4 is characterized in that, when up, the tunnel transmission of described first order Foreign Agent comprises following substep:
Described first order Foreign Agent will replace with described local Care-of Address from the data source address of described user terminal, and send to described second level Foreign Agent;
When up, the tunnel transmission of described second level Foreign Agent comprises following substep:
Described second level Foreign Agent will replace with described regional care-of address from the data source address of described first order Foreign Agent, and send to described home agent;
When descending, the tunnel transmission of described second level Foreign Agent comprises following substep:
Described second level Foreign Agent will replace to described regional care-of address from the destination address of the data of described home agent, and send to described first order Foreign Agent;
When descending, the tunnel transmission of described first order Foreign Agent comprises following substep:
Described first order Foreign Agent will replace to described local Care-of Address from the destination address of the data of described second level Foreign Agent, and send to described user terminal.
6. wireless lan network mobility management method according to claim 5 is characterized in that, described method also comprises following steps:
After described user terminal passed through the authentication of home network, described home network distributed described privately owned address to described user terminal;
Described home network is bound described privately owned address and described publicly-owned address, and upgrades the DNS of described home network.
7. wireless lan network mobility management method according to claim 6 is characterized in that, described method also comprises following steps:
When described business network was initiatively initiated business, described business network obtained the described publicly-owned address of described user terminal from the DNS of described home network.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101167282A CN100344199C (en) | 2003-11-19 | 2003-11-19 | System of radio local network mobility management and its method |
| PCT/CN2004/001322 WO2005050914A1 (en) | 2003-11-19 | 2004-11-19 | Wireless lan network mobility management system and method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101167282A CN100344199C (en) | 2003-11-19 | 2003-11-19 | System of radio local network mobility management and its method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1620176A CN1620176A (en) | 2005-05-25 |
| CN100344199C true CN100344199C (en) | 2007-10-17 |
Family
ID=34599080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2003101167282A Expired - Fee Related CN100344199C (en) | 2003-11-19 | 2003-11-19 | System of radio local network mobility management and its method |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN100344199C (en) |
| WO (1) | WO2005050914A1 (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100401800C (en) * | 2005-08-31 | 2008-07-09 | 华为技术有限公司 | Method for providing broadcast multicast service to users |
| DE102006015033B4 (en) * | 2005-12-16 | 2016-07-07 | Siemens Aktiengesellschaft | Mobile station as a gateway for mobile terminals to an access network and method for network registration of the mobile station and the mobile terminals |
| US8539554B2 (en) * | 2005-12-26 | 2013-09-17 | Panasonic Corporation | Mobile network managing apparatus and mobile information managing apparatus for controlling access requests |
| CN101312561B (en) * | 2007-05-24 | 2012-12-12 | 华为技术有限公司 | Radio communication system and radio communication method |
| CN101442745B (en) * | 2007-11-22 | 2011-02-09 | 华为技术有限公司 | Method and system for fusion of WiMAX network and 3GPP network |
| CN101442507B (en) * | 2007-11-23 | 2011-11-09 | 华为技术有限公司 | Method and system of fusion of WiMAX network and 3GPP network |
| CN101448237B (en) * | 2008-02-02 | 2011-08-10 | 中兴通讯股份有限公司 | Discovery method of home link in mobile IP |
| JP5325183B2 (en) * | 2010-08-31 | 2013-10-23 | アズビル株式会社 | Wireless communication system |
| CN102843679A (en) * | 2011-06-24 | 2012-12-26 | 中怡(苏州)科技有限公司 | Transmission method and transmission system of wireless data stream |
| CN104270739A (en) * | 2011-06-24 | 2015-01-07 | 中怡(苏州)科技有限公司 | Method and system for transmitting wireless data flow |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1324549A (en) * | 1998-09-21 | 2001-11-28 | 诺基亚网络有限公司 | IP mobile mechanism for a packet radio network |
| EP1199841A2 (en) * | 2000-10-18 | 2002-04-24 | Mitsubishi Denki Kabushiki Kaisha | Handoff method and agent apparatus |
| CN1394397A (en) * | 2000-10-26 | 2003-01-29 | 三星电子株式会社 | Handover method for mobile station having mobile IP address in mobile communication system |
| CN1406026A (en) * | 2001-09-16 | 2003-03-26 | 华为技术有限公司 | Combined address resolving scheme and combined address route device thereof |
| CN1411231A (en) * | 2002-10-17 | 2003-04-16 | 武汉邮电科学研究院 | Data packet transmission method in mobile IP |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3526032B2 (en) * | 2000-11-08 | 2004-05-10 | 日本電気株式会社 | Mobile network and IP packet transfer method |
| CN1133350C (en) * | 2002-08-15 | 2003-12-31 | 西安西电捷通无线网络通信有限公司 | Method for implementing roaming of mobile terminal over IP networks by active ARP |
-
2003
- 2003-11-19 CN CNB2003101167282A patent/CN100344199C/en not_active Expired - Fee Related
-
2004
- 2004-11-19 WO PCT/CN2004/001322 patent/WO2005050914A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1324549A (en) * | 1998-09-21 | 2001-11-28 | 诺基亚网络有限公司 | IP mobile mechanism for a packet radio network |
| EP1199841A2 (en) * | 2000-10-18 | 2002-04-24 | Mitsubishi Denki Kabushiki Kaisha | Handoff method and agent apparatus |
| CN1394397A (en) * | 2000-10-26 | 2003-01-29 | 三星电子株式会社 | Handover method for mobile station having mobile IP address in mobile communication system |
| CN1406026A (en) * | 2001-09-16 | 2003-03-26 | 华为技术有限公司 | Combined address resolving scheme and combined address route device thereof |
| CN1411231A (en) * | 2002-10-17 | 2003-04-16 | 武汉邮电科学研究院 | Data packet transmission method in mobile IP |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2005050914A1 (en) | 2005-06-02 |
| CN1620176A (en) | 2005-05-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1226887C (en) | Device, method and system for matching user state in network | |
| CN1131649C (en) | Access control method for mobile communications system | |
| CN200947608Y (en) | Multi-stack wireless transmission/receiving units for performing media independent delivery | |
| CN1672439A (en) | Systems and methods for reverse handover in mobile mesh ad hoc networks | |
| CN1280729A (en) | GPRS-subscriber selection of multiple internet service providers | |
| CN1859776A (en) | Roaming user data route optimizing method in 3GPP evolution network | |
| CN1623309A (en) | Method and system for connecting mobile client devices to the internet | |
| CN1625868A (en) | Roaming method between wireless local area network and cellular network | |
| CN101040463A (en) | Hand-off system and method of dual mode mobile for connecting mobile communication system and wireless lan | |
| CN1479494A (en) | A Combination System of CDMA System and Wireless Local Area Network | |
| CN1859614A (en) | Method, device and system for radio transmission | |
| CN101064936A (en) | Method and system for accessing home zone of roaming users | |
| CN1859445A (en) | Mobile terminal IP address distributing method | |
| CN1879442A (en) | Method and system for seamless handover between WLAN and WWAN | |
| CN1794870A (en) | Method of establishing interface link | |
| CN100344199C (en) | System of radio local network mobility management and its method | |
| CN101053268A (en) | Handover system and method in heterogeneous network | |
| CN1913713A (en) | Public data networking access method and system | |
| CN1284338C (en) | A multi-protocol data gateway and method for implementing communication thereof | |
| CN1160979C (en) | Packet Data Service in Mobile Communication System | |
| CN101076195A (en) | Mobile terminal, network, method and system for switch network by mobile terminal | |
| CN1567894A (en) | Method of route inquiry under condition of wireless local area network and mobile network intercommunication | |
| CN1759587A (en) | Telecommunications | |
| CN1522547A (en) | Architecture and Packet Routing in Multi-Bearer Networks | |
| CN1960566A (en) | Evolution mobile communication network, method for managing mobility between 3GPP and non-3GPP access network |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200909 Address after: No.23, Zhaoyang West Village, Xinghua City, Taizhou City, Jiangsu Province Patentee after: Wang Yunyun Address before: 518000 Baoan District Xin'an street, Shenzhen, Guangdong, No. 625, No. 625, Nuo platinum Plaza, Patentee before: SHENZHEN SHANGGE INTELLECTUAL PROPERTY SERVICE Co.,Ltd. Effective date of registration: 20200909 Address after: 518000 Baoan District Xin'an street, Shenzhen, Guangdong, No. 625, No. 625, Nuo platinum Plaza, Patentee after: SHENZHEN SHANGGE INTELLECTUAL PROPERTY SERVICE Co.,Ltd. Address before: 518129 Bantian HUAWEI headquarters office building, Longgang District, Guangdong, Shenzhen Patentee before: HUAWEI TECHNOLOGIES Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071017 Termination date: 20201119 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |