CN1942003A - Telecommunication between mobile nodes and mobile nodes - Google Patents

Telecommunication between mobile nodes and mobile nodes Download PDF

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Publication number
CN1942003A
CN1942003A CNA2005101081204A CN200510108120A CN1942003A CN 1942003 A CN1942003 A CN 1942003A CN A2005101081204 A CNA2005101081204 A CN A2005101081204A CN 200510108120 A CN200510108120 A CN 200510108120A CN 1942003 A CN1942003 A CN 1942003A
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China
Prior art keywords
address
care
node
mobile node
mobile
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CNA2005101081204A
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马宇智
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to CNA2005101081204A priority Critical patent/CN1942003A/en
Priority to PCT/CN2006/001037 priority patent/WO2007036098A1/en
Publication of CN1942003A publication Critical patent/CN1942003A/en
Pending legal-status Critical Current

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W8/00Network data management
    • H04W8/02Processing 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
    • H04W8/08Mobility data transfer
    • H04W8/082Mobility data transfer for traffic bypassing of mobility servers, e.g. location registers, home PLMNs or home agents
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W80/00Wireless network protocols or protocol adaptations to wireless operation
    • H04W80/04Network layer protocols, e.g. mobile IP [Internet Protocol]

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  • Engineering & Computer Science (AREA)
  • Databases & Information Systems (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

The key ideal of the method is: when the care of addresses of two mobile nodes are respectively at variation state, the two nodes transmit the variation information each other and take one of the two nodes as mobile communication node; the communication node makes packet transmission with the mobile node by using the variation information of care of addresses received by each of them.

Description

Communication means between a kind of mobile node and mobile node
Technical field
The present invention relates to the network communications technology field, be specifically related to the means of communication and mobile node between a kind of mobile node.
Background technology
The prime design requirement of mobile IP is: node when mobile, can keep the accessibility with other nodes in network.Mobile IP v 6 has defined three basic communication entities, i.e. mobile node, home agent and communication node.Mobile node identifies oneself with home address all the time, when mobile node during at home link, its working method and stationary nodes are identical, when mobile node roamed into foreign link, it need or have condition mode to obtain its Care-of Address automatically by stateless, then, send binding update messages to home agent, to register its Care-of Address, mobile node also can send binding update messages to communication node, registers its Care-of Address.
Mobile IP v 6 has defined the communication mode between two kinds of mobile nodes and the communication node:
A kind of is the bidirectional tunnel mode.Under this mode, the packet that sends from communication node is moved the home agent of node and intercepts and captures, then, home agent by mobile node is transmitted to mobile node by tunneling mechanism with packet, mobile node mails to the first home agent that transfers to mobile node by reverse tunnel mechanism of packet of communication node, then, the home agent by mobile node sends to communication node by normal routing mode with packet.
Another kind is a routing optimization manner.Under this mode, at first require mobile node to register its Care-of Address to communication node, afterwards, the packet between mobile node and the communication node can be routed directly to destination address, and does not need the home agent transfer through mobile node.
Definition according to mobile IP v 6, communication node can be a stationary nodes, it also can be mobile node, continuous development along with network technology, a large amount of portable terminals will appear in the network, communication requirement between the mobile node also will increase day by day, how guarantee the quality of communicating by letter between mobile node, and reduce communication delay is the problem that is worth research and solves as far as possible.
Mobile IP v 6 does not have the separately communication process between two mobile nodes of explanation, and according to the description of agreement to communication process between mobile node and the communication node, the communication between two mobile node MN 1 and the MN2 can be summarized as following four kinds of modes:
1, all when home link, their communication process and the communication process between stationary nodes are identical for MN1 and MN2.
2, MN1 is at foreign link, and MN2 is when home link, can handle according to the communication process of mobile node MN 1 and fixing communication node MN2 between the two; Vice versa.
3, MN1 and MN2 leave home link and when working in succession under tunnel mode, and promptly when MN1 and MN2 did not know the other side's Care-of Address, the communication process between them was as follows:
Finish registration process behind steps A, the MN1 arrival foreign link to its home agent.
Finish registration process behind step B, the MN2 arrival foreign link to its home agent.
Step C, MN1 send packet to MN2, earlier through the home agent of reverse tunnel to MN1, then, and the home agent from the home agent of MN1 to MN2, last, transfer to the Care-of Address of MN2 from the home agent process of passing through tunnel of MN2.
The path that step D, MN2 describe in path that MN1 sends packet and above-mentioned steps C is opposite.
When working when 4, MN1 and MN2 leave home link in succession and under the routing optimality pattern, the communication process between them is as follows:
Steps A, MN1 arrive the registration process of finishing behind the foreign link to its home agent, then, register its Care-of Address to MN2, and at this moment, MN2 sets up banding cache with MN1 as communication node.
Finish registration process behind step B, the MN2 arrival foreign link to its home agent.
When step C, MN1 send packet to MN2, owing to have the information entry of MN2 home address in the tabulation of the Binding Update of MN1 self, so MN1 selects direct routing mode packet to be routed to the home address of MN2, then, go to the Care-of Address of MN2 in the home agent by MN2.
Step D, MN2 send binding update messages to MN1, register its Care-of Address.At this moment, MN1 and MN2 set up the banding cache relevant with the other side each other as the other side's communication node.
Step e, MN1 and MN2 carry out communicating by letter of routing optimization manner with Care-of Address.
From foregoing description as can be seen, when two mobile nodes leave when needing to communicate between home link and this two mobile nodes in succession, these two nodes all are both to have served as mobile node, serve as communication node again, role definition is indeterminate, each other concern complexity, be unfavorable for that agreement realizes.When two mobile nodes all when foreign link and employing mode three communicate, packet is wanted successively through two mobile nodes home agent separately, the implementation procedure more complicated causes communication delay easily.When two mobile nodes all when foreign link and employing mode four communicate, the process of the setting up more complicated of Care-of Address binding relationship causes the time delay packet loss easily between two mobile nodes.
Summary of the invention
The objective of the invention is to, communication means and mobile node between a kind of mobile node are provided, with the role definition between two mobile nodes that need in the clear and definite mobile IP v 6 to communicate by letter, optimize the Binding Update process between the mobile node, improve communication speed between the mobile node.
For achieving the above object, the communication means between a kind of mobile node provided by the invention comprises:
When the mobile node of a, two needs communications is in variable condition at its Care-of Address separately, transmit the change information of Care-of Address mutually, and with one of them mobile node as the communication node that moves;
Change information by its Care-of Address that receives separately between b, described mobile communication node and the mobile node carries out data packet transmission.
Described step a specifically comprises:
A1, in the mobile node of two needs communication, Care-of Address is in the mobile node of variable condition earlier when its Care-of Address is in variable condition, to its home agent and opposite end mobile node registration Care-of Address;
A2, accept the mobile node of mobile node registration Care-of Address as the communication node that moves;
A3, mobile communication node transfer to described mobile node with the change information of its Care-of Address when its Care-of Address is in variable condition.
Described step a3 specifically comprises:
The communication node that moves is registered each mobile node of Care-of Address according to the binding information in the Binding Update tabulation of its storage is definite to it, and the change information of its Care-of Address is transferred to described each mobile node when its Care-of Address is in variable condition.
Among the described step a3, the step that the change information of Care-of Address is transferred to mobile node specifically comprises:
A31, mobile communication node with the change information of its Care-of Address by binding refresh requests transmission of messages to mobile node.
Described method also comprised before step a:
In binding refresh requests message, more new option of communication node address is set;
And described step a31 specifically comprises:
The communication node that moves is carried on the change information of its Care-of Address and carries the communication node address and more transfer to mobile node in the binding refresh requests message of new option.
Variable condition among the described step a is: change, the change information of the Care-of Address of described mobile communication node comprises: the address information after address information before Care-of Address changes and Care-of Address change;
And the source address of the binding refresh requests message among the described step a31 is: the address information after the Care-of Address of the communication node that moves changes, destination address is: the address information before the Care-of Address of address information of mobile node, the described communication node address communication node that more carrying is moved in the new option changes.
Variable condition among the described step a is: expection changes, and the change information of the Care-of Address of described mobile communication node comprises: the current address information of communication node and the expection address information of communication node;
And the source address of the binding refresh requests message among the described step a31 is: the current address of the communication node that moves, destination address is: the expection Care-of Address of address information of mobile node, the described communication node address communication node that more carrying is moved in the new option.
Described step b specifically comprises:
The communication node that moves and mobile node are tabulated according to the Binding Update that the change information of the Care-of Address of its reception upgrades separately respectively;
Communication node that moves and mobile node carry out data packet transmission according to the Care-of Address in its Binding Update tabulation separately respectively.
Described mobile node is: the mobile node in the mobile IP v 6 or deliver mobile node in the mobile IP v 6 fast or the mobile node in the layered mobile IPv 6.
The present invention also provides a kind of mobile node, comprising:
Memory module: when receiving the Binding Update request that mobile node transmission in opposite end comes, upgrade the Binding Update tabulation of its storage, and the mobile node of storing its place is the information of the communication node that moves;
Send Care-of Address change information module: when the Care-of Address of the mobile node at its place is in when storing mobile node for the information of the communication node that moves in variable condition and the memory module, the change information of Care-of Address is sent to each mobile node to its registration Care-of Address;
Data packet transmission module: send packet to the opposite end mobile node according to the Binding Update tabulation of storing in the memory module.
Description by technique scheme as can be known, the communication node that the present invention is defined as two mobile nodes respectively mobile node and moves, avoided mobile node when communicating with the opposite end mobile node, promptly serve as the mobile node role, serve as communication node role's phenomenon again, the role between clear and definite two mobile nodes divides; The communication node that moves is when its Care-of Address is in variable condition, can be timely the change information of its Care-of Address be transferred to mobile node, the binding information of mobile node can in time be refreshed, guaranteed to communicate by routing optimization manner rapidly between mobile node and the communication node; The communication node that moves is by sending binding refresh requests message, the change information of its Care-of Address is transferred to each mobile node to its registration, make mobile communication node can and each mobile node between communicate by routing optimization manner rapidly, optimize the Binding Update process between the mobile node, avoided the phenomenon of time delay packet loss as much as possible; The Care-of Address of the communication node that moves among the present invention be in variable condition can change for Care-of Address, also can be for Care-of Address is about to change, make the present invention can be applicable to mobile IP v 6, deliver mobile IP v 6, layered mobile IPv 6 fast; Thereby realized improving mobile IPv 6 protocol, optimized the communication process between the mobile node by technical scheme provided by the invention, improved the purpose of communication speed between the mobile node.
Description of drawings
Fig. 1 is a communication means schematic diagram between the mobile node of the present invention.
Embodiment
Core of the present invention is: when the mobile node of two needs communications is in variable condition at its Care-of Address separately, transmit the change information of Care-of Address mutually, and with one of them mobile node as the communication node that moves, carry out data packet transmission by its Care-of Address that receives separately between mobile communication node and the mobile node.
Based on core concept of the present invention technical scheme provided by the invention is further described below.
The mobile node of two needs communications is when Care-of Address is in variable condition, not only need to notify the opposite end mobile node timely with the change information of its Care-of Address, also need to carry out role assignments, being one of them mobile node communicates with role and another mobile node of communication node, and in the whole communication process after determining the role, a mobile node serves as the role of communication node all the time, and another mobile node serves as the role of mobile node all the time.
The Care-of Address of above-mentioned mobile communication node is in variable condition can be caused by the mobile of node, as node from a link moving to other different links etc.; Also can cause by reasons such as reconfiguring of node.
The method of the communication node that a mobile node in two mobile nodes is defined as moving can for: when the Care-of Address of one of them mobile node at first is in variable condition, after registering its Care-of Address to its home agent, this mobile node can send binding update messages to another mobile node, the mobile node that receives binding update messages can upgrade the binding relationship in the Binding Update tabulation of storing in its buffer memory according to the binding update messages of its reception, and to opposite end mobile node answer Binding Update response message, the communication node that the present invention can be defined as the mobile node that receives binding update messages to move is defined as mobile node with the mobile node that sends binding update messages.
Mobile node is when its home agent is registered its Care-of Address in the foregoing description, and home agent is identical to the process that defines in the location registration process process of mobile node and the mobile IP v 6.
When the Care-of Address of a mobile node in the mobile node of two needs communications at first is in variable condition and is after two mobile nodes have distributed the role respectively according to foregoing description, when the Care-of Address of the communication node that moves was in variable condition, mobile communication node need send the Care-of Address change information to the mobile node that communicates with.
The Care-of Address change information of the communication node that moves can be by the transmission of binding refresh message, like this, the communication node that moves can be by retrieving the binding information of storing in self banding cache, and its Care-of Address change information is transferred to each mobile node to its registration Care-of Address by the binding refresh message.Thereby, make the Care-of Address change information that can both know mobile communication node to each mobile node of its registration Care-of Address timely.
The slip-on head that defines in the mobile IP v 6 is mainly used in mobile node, communication node and home agent to carry out creating in the message relevant with management with binding.The form of slip-on head is as shown in table 1.
Table 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|Payload?Proto|?Header?Len | MH?Type | Reserved |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Checksum | |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+- |
| |
. .
. Message?Data .
. .
| |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
In the table 1, MH Type is used to indicate the type of mobile messaging, represents that as MH Type=1 this mobile messaging is the binding refresh requests.Message Data carries different message data according to the difference of MH Type, and during as MH Type=1, what carry among the Message Data is binding refresh requests message.
The form of the binding refresh requests message of mobile IP v 6 definition is as shown in table 2.
Table 2
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Reserved |
+-+-+-+-+-+-++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| |
. .
. Mobility?options .
. .
| |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
In the table 2, Mobility options is a mobile option, and mobile IP v 6 is that the general format of mobile option definition is as shown in table 3.
Table 3
0 1 2 3
0?1?2?3?4?5?6?7?8?9?0?1?2?3?4?5?6?7?8?9?0?1?2?3?4?5?6?7?8?9?0?1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Option?Type |Option?Length| Option?Data...
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
In the table 3, Option Type is the mobile option type, and Option Length is a mobile option length, and OptionData is the mobile option data.
The present invention newly is provided with more new option of a communication node address according to the general format of the mobile option of table 3, and its form is as shown in table 4.
Table 4
0 1 2 3
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type=50 | Length=16 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| |
+ +
| |
+ Correspondent Address +
| |
+ +
| |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
In the table 4, Option Type should be set to be different from the numerical value of other option type, is more new option of communication node address to identify this mobile option, as can Option Type being set to 50 etc.CorrespondentAddress is used to carry the address information of communication node.
In mobile IP v 6, binding refresh requests of the present invention sends after the Care-of Address of the communication node that moves changes, the source address of binding refresh requests is the new address information after the Care-of Address of the communication node that moves changes, destination address is the address of opposite end mobile node, and more carry in the new option mobile communication node address is old address information before the Care-of Address of the communication node that moves changes.
In mobile IP v 6, when receiving, mobile node carries the communication node address more during the binding refresh requests of new option, the old address information of obtaining communication node the new option more from the communication node address, then, according to the Binding Update tabulation in himself buffer memory of the old address information retrieval of communication node, the destination address of the binding update messages that mobile node in the old address information of communication node and the Binding Update tabulation has been sent mates, if there is the list item of coupling, mobile node is deleted this list item, and according to the new address information of the communication node that moves, promptly bind the source address in the refresh requests message, start the loop by process and Binding Update process.
In delivering mobile IP v 6 or layered mobile IPv 6 fast, the binding refresh requests of the present invention preceding transmission that can also change at the Care-of Address of the communication node that moves, the source address of binding refresh requests message is the current address information of the communication node that moves, destination address is the address of opposite end mobile node, and more carry in the new option communication node address is the new address information of the communication node expection of moving.
In delivering mobile IP v 6 or layered mobile IPv 6 fast, when receiving, mobile node carries the communication node address more during the binding refresh requests of new option, old address information from the source address obtaining communication node of binding refresh requests message, then, according to the Binding Update tabulation in himself buffer memory of the old address information retrieval of communication node, the destination address of the binding update messages that mobile node in the old address information of communication node and the Binding Update tabulation has been sent mates, if there is the list item of coupling, mobile node is deleted this list item, and according to the new address information of the communication node that moves, be the address information that more carry in the new option communication node address, start the loop by process and Binding Update process.
Mobile node and the communication node that moves can in time obtain the Care-of Address change information of peer node by the foregoing description process, thereby mobile node and mobile communication node can be communicated by routing optimization manner rapidly.
Be elaborated below in conjunction with the communication means between 1 pair of mobile node of the present invention of accompanying drawing.
Among Fig. 1, the mobile node of setting two needs communications is respectively MN1 and MN2.
At step 1-1, when the Care-of Address of MN1 is in variable condition, MN1 registers its Care-of Address to its home agent, and sends binding update messages to MN2, to register its Care-of Address to MN2.
After receiving the binding update messages that MN1 transmission comes to step 1-2, MN2, with the own binding relationship of setting up itself and MN1 as mobile communication node.
At this moment, if MN1 sends packet to MN2, then to step 1-3, owing to there is the information entry of MN2 home address in the tabulation of the Binding Update of MN1 self, so, MN1 selects direct routing mode that packet is routed to the home address of MN2, then, goes to MN2 in the home agent by MN2.
At this moment, if MN2 sends packet to MN1, then to step 1-3, owing to there is the Care-of Address of MN1 in the tabulation of the Binding Update of MN2 self, so MN2 selects direct routing mode that packet is routed directly to MN1.
If the Care-of Address of MN2 is in variable condition, canned data in himself banding cache of step 1-4, MN2 retrieval, determine that oriented its of institute register the mobile node of Care-of Address, and will carry the communication node address more the binding refresh requests of new option be sent to each mobile node, binding carries the change information of the Care-of Address of MN2 in the refresh requests.
After receiving the binding refresh requests message that MN2 transmission comes to step 1-5, MN1,, upgrade the Binding Update tabulation of himself storage according to old address information and the new address information of the MN2 that carries in the binding refresh requests message.
To step 1-6, MN1 its packet that need send is transferred to MN2 according to the Care-of Address of MN2 by routing optimization manner; MN2 transfers to MN1 according to the Care-of Address of MN1 by routing optimization manner with its packet that need send.
By foregoing description as can be seen, can under the situation of its home agent registration address information, directly communicate not needing, optimized communication process, reduce the possibility of time delay packet loss with mobile node MN 1 as the MN2 of the communication node that moves.
Mobile node provided by the invention comprises: memory module, transmission Care-of Address change information module and data packet transmission module.
Memory module is mainly used in storage Binding Update tabulation, and memory module is upgraded the Binding Update tabulation of its storage when receiving the Binding Update request that opposite end mobile node transmission comes, and the mobile node of storing its place is the information of the communication node that moves.
Send Care-of Address change information module and be mainly used in Care-of Address when the mobile node at its place and be in when storing mobile node in variable condition and the memory module, the change information of Care-of Address is sent to each mobile node to its registration Care-of Address for the information of the communication node that moves.Sending Care-of Address change information module can determine each mobile node to its registration Care-of Address according to the Binding Update tabulation of storing in the memory module, sends Care-of Address change information module and can the change information of its Care-of Address be transferred to each mobile node by the binding refresh message.Concrete as the description in the above-mentioned method.
The data packet transmission module is mainly used in the Care-of Address of determining the opposite end mobile node according to the Binding Update tabulation of storing in the memory module, and sends packet according to the Care-of Address of opposite end mobile node.
Though described the present invention by embodiment, those of ordinary skills know, the present invention has many distortion and variation and do not break away from spirit of the present invention, and the claim of application documents of the present invention comprises these distortion and variation.

Claims (10)

1, the communication means between a kind of mobile node is characterized in that, comprising:
When the mobile node of a, two needs communications is in variable condition at its Care-of Address separately, transmit the change information of Care-of Address mutually, and with one of them mobile node as the communication node that moves;
Change information by its Care-of Address that receives separately between b, described mobile communication node and the mobile node carries out data packet transmission.
2, the communication means between a kind of mobile node as claimed in claim 1 is characterized in that, described step a specifically comprises:
A1, in the mobile node of two needs communication, Care-of Address is in the mobile node of variable condition earlier when its Care-of Address is in variable condition, to its home agent and opposite end mobile node registration Care-of Address;
A2, accept the mobile node of mobile node registration Care-of Address as the communication node that moves;
A3, mobile communication node transfer to described mobile node with the change information of its Care-of Address when its Care-of Address is in variable condition.
3, the communication means between a kind of mobile node as claimed in claim 2 is characterized in that, described step a3 specifically comprises:
The communication node that moves is registered each mobile node of Care-of Address according to the binding information in the Binding Update tabulation of its storage is definite to it, and the change information of its Care-of Address is transferred to described each mobile node when its Care-of Address is in variable condition.
4, the communication means between a kind of mobile node as claimed in claim 2 is characterized in that, among the described step a3, the step that the change information of Care-of Address is transferred to mobile node specifically comprises:
A31, mobile communication node with the change information of its Care-of Address by binding refresh requests transmission of messages to mobile node.
5, the communication means between a kind of mobile node as claimed in claim 4 is characterized in that, described method also comprised before step a:
In binding refresh requests message, more new option of communication node address is set;
And described step a31 specifically comprises:
The communication node that moves is carried on the change information of its Care-of Address and carries the communication node address and more transfer to mobile node in the binding refresh requests message of new option.
6, the communication means between a kind of mobile node as claimed in claim 5 is characterized in that:
Variable condition among the described step a is: change, the change information of the Care-of Address of described mobile communication node comprises: the address information after address information before Care-of Address changes and Care-of Address change;
And the source address of the binding refresh requests message among the described step a31 is: the address information after the Care-of Address of the communication node that moves changes, destination address is: the address information before the Care-of Address of address information of mobile node, the described communication node address communication node that more carrying is moved in the new option changes.
7, the communication means between a kind of mobile node as claimed in claim 5 is characterized in that:
Variable condition among the described step a is: expection changes, and the change information of the Care-of Address of described mobile communication node comprises: the current address information of communication node and the expection address information of communication node;
And the source address of the binding refresh requests message among the described step a31 is: the current address of the communication node that moves, destination address is: the expection Care-of Address of address information of mobile node, the described communication node address communication node that more carrying is moved in the new option.
8, the communication means between a kind of mobile node as claimed in claim 1 is characterized in that, described step b specifically comprises:
The communication node that moves and mobile node are tabulated according to the Binding Update that the change information of the Care-of Address of its reception upgrades separately respectively;
Communication node that moves and mobile node carry out data packet transmission according to the Care-of Address in its Binding Update tabulation separately respectively.
9, as the communication means between the described a kind of mobile node of arbitrary claim in the claim 1 to 8, it is characterized in that described mobile node is: the mobile node in the mobile IP v 6 or deliver mobile node in the mobile IP v 6 fast or the mobile node in the layered mobile IPv 6.
10, a kind of mobile node is characterized in that, comprising:
Memory module: when receiving the Binding Update request that mobile node transmission in opposite end comes, upgrade the Binding Update tabulation of its storage, and the mobile node of storing its place is the information of the communication node that moves;
Send Care-of Address change information module: when the Care-of Address of the mobile node at its place is in when storing mobile node for the information of the communication node that moves in variable condition and the memory module, the change information of Care-of Address is sent to each mobile node to its registration Care-of Address;
Data packet transmission module: send packet to the opposite end mobile node according to the Binding Update tabulation of storing in the memory module.
CNA2005101081204A 2005-09-29 2005-09-29 Telecommunication between mobile nodes and mobile nodes Pending CN1942003A (en)

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PCT/CN2006/001037 WO2007036098A1 (en) 2005-09-29 2006-05-19 A communication method between mobile nodes and a mobile node

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CN102440042A (en) * 2009-05-22 2012-05-02 瑞典爱立信有限公司 Method and nodes for revoking a binding in a mobile ip network
CN101873572B (en) * 2009-04-27 2012-08-29 中国移动通信集团公司 Data transmission method, system and relevant network equipment based on PMIPv6

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EP1158742A1 (en) * 2000-05-24 2001-11-28 Motorola, Inc. Communication system and method therefor
KR100474451B1 (en) * 2002-08-16 2005-03-10 삼성전자주식회사 Optimized packet routing method in mobile IPv6 supporting localized mobility management

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Publication number Priority date Publication date Assignee Title
CN101355498B (en) * 2008-08-01 2011-09-21 中国联合网络通信集团有限公司 Method and system for pre-configuring forwarding address base on neighbor picture
CN101873572B (en) * 2009-04-27 2012-08-29 中国移动通信集团公司 Data transmission method, system and relevant network equipment based on PMIPv6
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