CN1848811A - Method for roaming user data route in evolution network - Google Patents
Method for roaming user data route in evolution network Download PDFInfo
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- CN1848811A CN1848811A CNA2006100585114A CN200610058511A CN1848811A CN 1848811 A CN1848811 A CN 1848811A CN A2006100585114 A CNA2006100585114 A CN A2006100585114A CN 200610058511 A CN200610058511 A CN 200610058511A CN 1848811 A CN1848811 A CN 1848811A
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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
- H04W8/08—Mobility data transfer
- H04W8/12—Mobility data transfer between location registers or mobility servers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/42—Centralised routing
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Abstract
A data routing method of roaming user in evolution network includes storing a mapping relation of roaming user attribution site address to roaming address of roaming user switched in by radio switch-in network in roaming network side, obtaining a roaming address mapped by destination address of data message according to said mapping relation and retransmitting said data message to roaming address when data message up-sent by roaming network is retransmitted by roaming network side.
Description
Technical field
The present invention relates to the mobile communication technology field, its mobile communication network framework that is particularly related to evolution in the third generation mobile system reaches the demand of roaming mobile subscribers data surface routing optimality under this network system architecture, is method for roaming user data route in a kind of evolvement network concretely.
Background technology
In order to guarantee the competitiveness of third generation collaborative project (3GPP) system in 10 years down to the time more of a specified duration, the work of an access technology evolution is just carried out at the 3GPP organization internal.Particularly, in the 3GPP system, use group technology to need further to strengthen in order to strengthen the 3GPP system handles ability of the IP data service of growth fast.Most important several sections comprises in this class technology evolution: the reduction of the whole cost of the power system capacity of minimizing time delay and reaction time, user data rate more at a high speed, enhancing and coverage and operator.And the network configuration of evolution also is an important index for the backwards compatibility of existing network.
As shown in Figure 1, the core net of wireless evolution network mainly comprises three the logic function bodies of user's face anchor point (InterASAnchor) between mobile management entity (MME), user entity (UPE), different access systems, wherein: MME is responsible for the mobile management of chain of command, comprise the management of user's context and mobile status, distributing user temporary identity sign, safety function etc., it is corresponding to the control plane part of current conventional wireless communication systems (UMTS) internal services GPRS Support Node (SGSN); UPE is responsible for initiating paging for downlink data under the idle condition, and IP bearing parameter and the interior routing iinformation of network etc. are preserved in management, and it is corresponding to the datum plane part of current UMTS internal system SGSN and GPRS gateway node (GGSN); InterASSystemAnchor then serves as the user's face anchor point between different access systems.Described GPRS is meant GPRS.In Fig. 1, packet-based core networks of the wireless access network of evolution (Evolved RAN), evolution (Evolved Packet Core) and interface S1 to S7 are new function element and interface.
So-called roaming is exactly that the mobile subscriber moves to the non-attribution network, provides access by the non-attribution network.Evolvement network is for promoting roamer's quality of service, and requirement can be optimized user's face route of roamer.Because in future evolution network, all business of mobile subscriber comprise that grouping, voice and multimedia etc. all carry by IP, therefore the routing optimality above has very strong current demand, for example the conversation between roamer other mobile subscribers in roaming place and roaming place will be roamer's a main business, if be not optimized, business datum also needs by the home network routing forwarding, not only waste Internet resources, and reduce user's quality of service, so the routing optimality of roaming user data is necessary.Yet, also do not have clear and definite strategy and method to realize in the evolvement network at present, roamer's routing optimality.
In the prior art, for satisfying the demand of roaming user data route optimizing, can consider that by the roaming place network be roamer's distributing IP, roamer's route of using this IP address to carry out professional data flow just needn't all be passed through user's home network route naturally like this.Whether yet allowing by roaming place network allocation IP must be that user attaching network and roaming network are consulted the back decision.Though consider to exist home network can allow the business datum routing optimality of user in the roaming place, do not allow the situation of roaming network distributing IP address, also must consider the method for the routing optimality of corresponding solution roaming user data this moment.
Shown in Fig. 2 a, be roamer in the prior art and other user of roaming place communication data route by GSM EDGE wireless access network (GERAN).Wherein, the home network of roamer MSa is A, and MSa roams into the strange land network B, other users that MSb representative inserts in network B, and it or B network local user, or the roamer that comes of other networks, even also be the user of A network.If:
1) if MSb is the A netsurfing to the user of B network equally, route is shown in the short dash line among Fig. 2 a, or referring to the route shown in the dotted line of Fig. 2 b.
2) if MSb is the B network user, route is shown in the long dotted line among Fig. 2 a, or referring to the route shown in the dotted line of Fig. 2 c.
3) if the roamer of the MSb non-A network that is other, route and 2) similar, just be connected to Internet then by the InterASAnchor that passes through the MSb home network after the GPRS core net (CORE) possibly.
As shown in Figure 3, be roamer in the prior art and other user of roaming place communication data route by the wireless access network (Evolved RAN) of evolution.Wherein, the home network of roamer MSa is A, and MSa roams into the strange land network B, other users that MSb representative inserts in network B, and it or B network local user, or the roamer that comes of other networks, even also be the user of A network.If:
1 ') if MSb is the user of A netsurfing to the B network equally, the route of route shown in the short dash line among Fig. 3.
2 ') if MSb is the B network user, the route of route shown in the long dotted line among Fig. 3.
3 ') if the roamer of the MSb non-A network that is other, route and 2 ') similar, just by behind MME and the UPE possibly the InterASAnchor through the MSb home network be connected to Internet then.
As shown in Figure 4, be roamer in the prior art and other user of roaming place communication data route by GERAN and Evolved RAN.Wherein, the home network of roamer MSa is A, and MSa roams into the strange land network B, other users that MSb representative inserts in network B, and it or B network local user, or the roamer that comes of other networks, even also be the user of A network.If:
1 ") if MSb is the user of A netsurfing to the B network equally, the route of route shown in the short dash line among Fig. 4.
2 ") if MSb is the B network user, the route of route shown in the long dotted line among Fig. 4.
3 ") if the roamer of the MSb non-A network that is other, route and 2 ") is similar, just by behind MME and the UPE possibly the InterASAnchor through the MSb home network be connected to Internet then.
From above-mentioned route as can be known, even roamer and communication objective ground all are in the same roaming network in the prior art, the data between roamer and the communication objective ground all must route be got back to home network, then by the transmission of roaming place network.
Summary of the invention
The objective of the invention is to, method for roaming user data route in a kind of evolvement network is provided, make roamer's data route get back to home network, but directly directly send the destination to by the roaming place network, thus lifting roamer's quality of service.
Technical scheme of the present invention is: method for roaming user data route in a kind of evolvement network, wherein: the mapping relations of preserving the roamer's who inserts through the roaming network wireless access network address, roaming place and this roamer's ownership place address in the roaming network side; When the roaming network side is transmitted the data message of the up transmission of roaming network, obtain the address, roaming place that the data message destination address shines upon according to described mapping relations, and described data message forwarding is arrived this address, roaming place.
Inventing described method may further comprise the steps: the gateway device of roaming network is when described roamer sets up or upgrade IP connection carrying, obtain the ownership place IP address that described roamer's home network distributes for this roamer, and preserve the mapping relations of described ownership place IP address and described roamer's address, roaming place; Before the uplink data messages that the user sends under transmitting roaming network, inquire about described mapping relations,, then transmit described data message according to this address, roaming place if the destination address of described data message can match address, corresponding roaming place.
Described roamer is under current gateway equipment overlay network when mobile, if the roaming place address change is then upgraded described mapping relations.
When described roamer leaves current gateway equipment, when being linked into other gateway devices, delete described mapping relations.
Described roaming network wireless access network comprises: the wireless access network of evolution (Evolved RAN), UMTS Terrestrial radio access network (UTRAN), GSM EDGE wireless access network (GERAN), non 3GPP IP Access Network, WLAN 3GPP IP Access Network, the Internet.
Described gateway device comprises: the local anchor point (Local Anchor) of the mobile management entity (MME) of the gateway device of GPRS core net, evolution wireless network and/or the user entity (UPE) of evolution wireless network, evolution wireless network.
Described roamer comprises: portable terminal or other communication node.
Address, described roaming place is meant: the local address that can communicate by letter with the roamer in IP address, link-local, local port, tunnel etc.
Beneficial effect of the present invention is, has solved roamer's data surface routing optimality problem in the future evolution network.The present invention does not require by roaming place network allocation IP, be under the situation of user's distributing IP address promptly at home network, if when home network and roaming place network negotiate allow roaming user data route optimizing, still can realize the user face data routing optimality of roamer in the roaming place.
Description of drawings
Fig. 1 is wireless evolution network in the prior art (non-roaming scene) Organization Chart;
Fig. 2 a be in the prior art roamer and other user of roaming place by the communication data route schematic diagram of GERAN;
Fig. 2 b is to be that the A netsurfing is to the schematic diagram of simplifying by the communication data route of GERAN between the user of B network equally in the prior art;
Fig. 2 c is the schematic diagram that roamer and roaming place user simplify by the communication data route of GERAN in the prior art;
Fig. 3 be in the prior art roamer and other user of roaming place by the communication data route schematic diagram of Evolved RAN;
Fig. 4 be in the prior art roamer and other user of roaming place by the communication data route schematic diagram of GERAN and Evolved RAN;
Fig. 5 is the flow chart of the inventive method;
Fig. 6 is the roamer of the embodiment of the invention 1 and the communication data route schematic diagram that other user of roaming place passes through GERAN;
Fig. 7 is the roamer of the embodiment of the invention 2 and the communication data route schematic diagram that other user of roaming place passes through Evolved RAN;
Fig. 8 is the roamer of the embodiment of the invention 3 and other user of roaming place communication data route schematic diagram by GERAN and EvolvedRAN.
Embodiment
Below in conjunction with description of drawings the specific embodiment of the present invention.As shown in Figure 5, the invention provides method for roaming user data route in the third generation collaborative project evolvement network, the gateway device that the steps include: roaming network is when described roamer sets up or upgrade IP connection carrying, obtain the ownership place IP address that described roamer's home network distributes for this roamer, and preserve the mapping relations of described ownership place IP address and described roamer's address, roaming place;
Before the uplink data messages that the user sends under transmitting roaming network, inquire about described mapping relations,, then transmit described data message according to this address, roaming place if the destination address of described data message can match address, corresponding roaming place.
Described roamer is under current gateway equipment overlay network when mobile, if the roaming place address change is then upgraded described mapping relations.
When described roamer leaves current gateway equipment, when being linked into other gateway devices, delete described mapping relations.
Main thought of the present invention is exactly by the roaming network gateway device, preserves the mapping relations of the IP address that the mobile subscriber's who inserts through gateway device local addressable address or data channel and customer service layer data message use.Before the data message that the user sends under transmitting present networks, destination address according to data message, inquire about the mapping relations of above-mentioned preservation, if inquiry is found the destination address of data message and certain local address and is had mapping, illustrate that promptly the destination of data message is arranged in the local network of this gateway management, then directly this data message is obtained local address according to inquiry and transmit, avoid packet to be routed to local network and just can return outward.The concrete steps of the inventive method are summarized as follows:
When step 1, roaming place gateway device are set up or upgraded IP and connect carrying at portable terminal, obtain home network and be its IP address allocated, and preserve this IP address and terminal in the local address of present networks or the mapping relations of data channel.
Before the uplink data messages that the user sends under step 2, the forwarding local network, inquire about above-mentioned mapping relations,, then transmit according to local address if can match corresponding local address, otherwise normal the forwarding.
In following examples of the present invention, need to prove:
1, the home network of mobile subscriber MSa is A in this paper embodiment accompanying drawing, roam into the strange land network B, other users that mobile subscriber MSb representative inserts in network B, it or B network local user, or the next roamer of other networks, even also be the user of A network.
2, mobile subscriber mentioned in this article is abstract concept just for convenience of description, and it can be portable terminal or other communication nodes.
3, above-mentioned local address or data channel, can be IP address, link-local, local port, tunnel etc. can with this locality " address " of telex network.
As shown in Figure 6, adopt the inventive method, gateway device among the GPRS CORE of roaming place network B, can set up IP the roamer connects in the load bearing process, obtaining home network is mobile subscriber's IP address allocated IPA, and preserves IPA and the user mapping relations at B network addressable address AddB.Because when mobile subscriber MSa passes through GSM EDGE wireless access network (GERAN) access in roaming network B, network must issue by the gateway device among the GPRS CORE for its IP address allocated, so this IP is visible to the gateway device among the GPRS CORE and can obtains.
Here AddrB can be a local ip address, during such as the employing mobile IP technology, and the Care-of Address that the roaming network gateway device distributes for the user as Foreign Agent; AddrB also can be a data gap marker, such as GTP tunnel; AddrB also can be other local link address etc.In a word, AddrB must be local address or the data channel that the roaming place network gateway device can be addressed to user a.
Like this when the gateway device among the GPRS CORE is transmitted the user data message, inquire about the mapping relations of above-mentioned preservation, there are corresponding mapping relations if can inquire, when its destination address is mobile subscriber's IP address ip A, just can transmit processing to the user data message according to the local address AddrB of mapping, thereby make all user MSb mail to the data message of user MSa by the gateway device among the GPRS CORE, do not need to mail to earlier the home network A of user MSa, and directly give user MSa in the local network route.Symmetrically, when communication the opposing party user MSb also is the roamer, said method is suitable equally, no matter therefore user MSb roamer whether, the data that MSa mails to MSb are also all directly carried out routing optimality by the gateway device among the GPRS CORE of roaming place, directly be transmitted to MSb, thus effect after the acquisition optimization as shown in Figure 6.
User MSa and MSb repeat no more here by the situation all fours that UTRAN inserts.
As shown in Figure 7, adopt the inventive method, the gateway device MME/UPE in the network B of roaming place can set up IP the roamer and connect in the load bearing process, obtaining home network is mobile subscriber's IP address allocated IPA, and preserves IPA and the user mapping relations at B network addressable address AddB.Because the mobile subscriber is when the wireless access network (Evolved RAN) by evolution inserts in roaming network B, network must issue by the MME/UPE of evolvement network for its IP address allocated, so this IP is visible to the gateway device MME/UPE of evolvement network and can obtains.
Here AddrB can be a local ip address, during such as the employing mobile IP technology, and the Care-of Address that the roaming network gateway device distributes for the user as Foreign Agent; AddrB also can be a Tunnel Identifier, such as GTP tunnel; AddrB also can be a link-local address etc.; In a word, AddrB must be the address that the gateway device MME/UPE of roaming place network can be addressed to user MSa.
Like this when the gateway device in the evolvement network is transmitted the user data message, inquire about the mapping relations of above-mentioned preservation, there are corresponding mapping relations if can inquire, when its destination address is mobile subscriber's IP address ip A, just can transmit processing to the user data message according to the local address AddrB that is mapped to, thereby make all user MSb mail to the data message of user MSa by the gateway device of evolvement network, do not need to mail to earlier the network A of user MSa ownership, and directly give user MSa in the local network route.Symmetrically, when communication the opposing party user MSb also is the roamer, said method is suitable equally, no matter therefore user MSb roamer whether, the also direct gateway device MME/UPE by the roaming place of data that MSa mails to MSb carries out routing optimality, directly issue MSb, thus effect after the acquisition optimization as shown in Figure 7.
The mobile subscriber inserts situation by non 3GPP IP Access or WLAN 3GPP IP Access, and is similar substantially, do not giving unnecessary details here.
Contrast the foregoing description 1,2, obviously the gateway device of roaming place is different because of the residing connecting system of user.
As shown in Figure 8, adopt the inventive method, when mobile subscriber MSa inserts in the roaming place network B, no matter insert by which kind of connecting system, all need to be connected to the Inter AS Anchor of home network by the local anchor point Local Anchor in the B network, therefore should this locality anchor point can set up IP the roamer and connect in the load bearing process, obtaining home network be mobile subscriber's IP address allocated IPA, and preservation IPA and user are in the mapping relations of B network addressable address AddB.Because no matter mobile subscriber MSa is when inserting by which kind of connecting system in roaming network B, network must issue by the local anchor point Local Anchor in the B network for its IP address allocated, so this IP is visible to local anchor point Local Anchor and can obtains.
Here AddrB can be a local ip address, during such as the employing mobile IP technology, and the Care-of Address that the roaming network gateway device distributes for the user as Foreign Agent; AddrB also can be a Tunnel Identifier, such as GTP tunnel; AddrB also can be a link-local address etc.; In a word, AddrB must be the address that the local anchor point Local of the gateway device Anchor of roaming place network can be addressed to user MSa.
Like this when the local anchor point Local of the gateway device in evolvement network Anchor transmits the user data message, inquire about the mapping relations of above-mentioned preservation, there are corresponding mapping relations if can inquire, when its destination address is mobile subscriber's IP address ip A, just can transmit processing to the user data message according to the local address AddrB that is mapped to, thereby make all user MSb mail to the data message of user MSa by the local anchor point of the gateway device of evolvement network, do not need to mail to earlier the network A of user MSa ownership, and directly give user MSa in the local network route.Symmetrically, when communication the opposing party user MSb also is the roamer, said method is suitable equally, no matter therefore user MSb roamer whether, the also direct local anchor point Local of the gateway device Anchor by the roaming place of data that MSa mails to MSb carries out routing optimality, directly issue MSb, thus effect after the acquisition optimization as shown in Figure 8.
The mobile subscriber inserts situation by non 3GPP IP Access or WLAN 3GPP IP Access, and is similar substantially, do not giving unnecessary details here.
Need illustrate that easy for describing, MME and UPE are drawn in together in the schematic diagram among the present invention, can not separate but do not get rid of.In addition, the network site of mobile anchor point Inter AS Anchor does not influence applicability of the present invention, such as not getting rid of the possibility that mobile anchor point and UPE coexist as the consolidated network node.The mobile subscriber who is suitable in the foregoing description can be portable terminal or other any communication nodes.
In addition, above-mentioned routing optimality prerequisite must be to allow to carry out routing optimality after user attaching network and roaming network are consulted.Consider that above-mentioned negotiation itself needs the mobile subscriber in roaming place registration or set up and carry out when IP connects carrying, and need the gateway device of roaming place to participate in, so the gateway device of roaming place is known all roamers' negotiation result fully, and can be according to this result, whether decision enables routing optimization method of the present invention for this user.
The present invention proposes a kind of optimization method of roaming user data face route, solves the data surface routing optimality problem of roamer in the future evolution network.This method does not require by roaming place network allocation IP, be under the situation of user's distributing IP address promptly at home network, if home network and roaming place network negotiate allow roaming user data route optimizing, by the roaming place gateway preserve and inquiring user IP address and user in the network of roaming place the addressable address or can reach the mapping relations of data channel, optimize the data surface route between roamer and other communication nodes of roaming place, improve the corresponding data performance of services, bring better professional impression to the roamer.
Above embodiment only is used to illustrate the present invention, but not is used to limit the present invention.
Claims (9)
1. method for roaming user data route in the evolvement network is characterized in that:
Preserve the mapping relations of the roamer's who inserts through the roaming network wireless access network address, roaming place and this roamer's ownership place address in the roaming network side;
When the roaming network side is transmitted the data message of the up transmission of roaming network, obtain the address, roaming place that the data message destination address shines upon according to described mapping relations, and described data message forwarding is arrived this address, roaming place.
2. method according to claim 1 is characterized in that may further comprise the steps:
The gateway device of roaming network is when described roamer sets up or upgrade IP connection carrying, obtain the ownership place IP address that described roamer's home network distributes for this roamer, and preserve the mapping relations of described ownership place IP address and described roamer's address, roaming place;
Before the uplink data messages that the user sends under transmitting roaming network, inquire about described mapping relations,, then transmit described data message according to this address, roaming place if the destination address of described data message can match address, corresponding roaming place.
3. method according to claim 2 is characterized in that, described roamer is under current gateway equipment overlay network when mobile, if the roaming place address change is then upgraded described mapping relations.
4. method according to claim 2 is characterized in that, when described roamer leaves current gateway equipment, when being linked into other gateway devices, deletes described mapping relations.
5. method according to claim 2 is characterized in that, described roamer is under current gateway equipment overlay network when mobile, if the roaming place address change is then upgraded described mapping relations;
When described roamer leaves current gateway equipment, when being linked into other gateway devices, delete described mapping relations.
6. method according to claim 1, it is characterized in that described roaming network wireless access network comprises: the wireless access network of evolution, UMTS Terrestrial radio access network, GSM EDGE wireless access network, non 3GPP IP Access Network, WLAN 3GPP IP Access Network, the Internet.
7. method according to claim 2, it is characterized in that described gateway device comprises: the local anchor point of the mobile management entity of the gateway device of GPRS core net, evolution wireless core network and/or the user entity of evolution wireless network, evolution wireless network.
8. according to any described method of claim 1 to 7, it is characterized in that described roamer comprises: portable terminal or other communication node.
9. according to any described method of claim 1 to 7, it is characterized in that address, described roaming place is meant: the local address that can communicate by letter with the roamer in IP address, link-local, local port, tunnel etc.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100585114A CN100450097C (en) | 2006-03-10 | 2006-03-10 | Method for roaming user data route in evolution network |
| PCT/CN2007/000334 WO2007104216A1 (en) | 2006-03-10 | 2007-01-30 | An user data routing method and gateway in evolved network |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100585114A CN100450097C (en) | 2006-03-10 | 2006-03-10 | Method for roaming user data route in evolution network |
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| CN1848811A true CN1848811A (en) | 2006-10-18 |
| CN100450097C CN100450097C (en) | 2009-01-07 |
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| CNB2006100585114A Expired - Fee Related CN100450097C (en) | 2006-03-10 | 2006-03-10 | Method for roaming user data route in evolution network |
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| WO (1) | WO2007104216A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102036306A (en) * | 2009-09-29 | 2011-04-27 | 大唐移动通信设备有限公司 | Transmission method and communication system of network element data in communication network |
| CN118233979A (en) * | 2024-05-22 | 2024-06-21 | 广州通则康威科技股份有限公司 | Method and system for seamless roaming in Mesh network |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI113328B (en) * | 2001-11-30 | 2004-03-31 | Teliasonera Finland Oyj | Mechanism for simplifying roaming in a communication system |
| CN1199393C (en) * | 2002-04-09 | 2005-04-27 | 华为技术有限公司 | Method for realizing multi-casting roam |
| US7587498B2 (en) * | 2002-05-06 | 2009-09-08 | Cisco Technology, Inc. | Methods and apparatus for mobile IP dynamic home agent allocation |
| KR100474451B1 (en) * | 2002-08-16 | 2005-03-10 | 삼성전자주식회사 | Optimized packet routing method in mobile IPv6 supporting localized mobility management |
| GB0308980D0 (en) * | 2003-04-17 | 2003-05-28 | Orange Personal Comm Serv Ltd | Telecommunications |
| CN1315302C (en) * | 2003-06-17 | 2007-05-09 | 华为技术有限公司 | Method of route inquiry under condition of wireless local area network and mobile network intercommunication |
| CN100438682C (en) * | 2004-05-14 | 2008-11-26 | 华为技术有限公司 | Method of dynamic allocating home address remotely for mobile IPv6 node |
| CN1311674C (en) * | 2004-09-30 | 2007-04-18 | 西安西电捷通无线网络通信有限公司 | Method for realizing moving node directly interview each other in same extending network domain |
-
2006
- 2006-03-10 CN CNB2006100585114A patent/CN100450097C/en not_active Expired - Fee Related
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2007
- 2007-01-30 WO PCT/CN2007/000334 patent/WO2007104216A1/en active Application Filing
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102036306A (en) * | 2009-09-29 | 2011-04-27 | 大唐移动通信设备有限公司 | Transmission method and communication system of network element data in communication network |
| CN118233979A (en) * | 2024-05-22 | 2024-06-21 | 广州通则康威科技股份有限公司 | Method and system for seamless roaming in Mesh network |
Also Published As
| Publication number | Publication date |
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| CN100450097C (en) | 2009-01-07 |
| WO2007104216A1 (en) | 2007-09-20 |
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