CN101867524B - Seamless mobile communication method and system in locator-identifier split network - Google Patents
Seamless mobile communication method and system in locator-identifier split network Download PDFInfo
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- CN101867524B CN101867524B CN2010102078642A CN201010207864A CN101867524B CN 101867524 B CN101867524 B CN 101867524B CN 2010102078642 A CN2010102078642 A CN 2010102078642A CN 201010207864 A CN201010207864 A CN 201010207864A CN 101867524 B CN101867524 B CN 101867524B
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Abstract
The embodiment of the invention provides a seamless mobile communication method and a system in a locator-identifier split network, belonging to the technical field of communication. The method comprises the following steps: after a first mobile node moves to a second position from a first position, a service area in which the second position is located assigning a second position address to the first mobile node; judging whether the first position and the second position belong to the same service area or not; if so, the service area in which the second position is located updating the mapping relationship of the first mobile node; if not, the service area in which the second position is located saving the mapping relationship of the first mobile node after movement and transmitting the mapping relationship of the first mobile node after movement to a service area in which the first position is located; and the service area in which the first position is located saving the mapping relationship of the first mobile node after movement. The system comprises the first mobile node, the service area in which the second position is located and the service area in which the first position is located. The embodiment of the invention reduces the mobile transmission delay and solves the problem of message loss.
Description
Technical field
The embodiment of the invention relates to communication technical field, relates in particular to a kind of position and identifies seamless mobile communication method and system in the separated network.
Background technology
In order to solve internet core router routing list capacity rapid expanding; And the ambiguous problem in IP address; The route seminar of study Internet working group has proposed the technology that position-based separates with sign; The technology that separate with sign this position is to separate the dual-use function of IP address in traditional internet architecture, and the identify label of new name space as node only as the position and the sign of node, introduced in the IP address.
In position and sign separated network, each mobile node communicates based on sign and Correspondent Node.When certain mobile node after primary importance moves to the second place; When other node is communicated by letter with this mobile node; Still communication message is sent in the coverage, primary importance place; After this communication message is received in coverage, primary importance place, this communication message is forwarded in the coverage, second place place again; And after this mobile node moves; Register the map information after self moving to mapped system immediately, the map information after mapping server renewal of the mapping server of place network and other these mobile node mapping relations of storage was moved about this mobile node before this mobile node moved.
But in realizing process of the present invention, the inventor finds to exist at least in the prior art following problem:
Certain mobile node is after primary importance moves to the second place in the prior art, and the message that other node is communicated by letter with this mobile node need pass through the forwarding of coverage, primary importance place, therefore can cause propagation delay time;
Mobile node leave coverage, primary importance place to mobile node in the process that the second place succeeds in registration; The communication message of mobile node and Correspondent Node all can be sent to coverage, mobile node primary importance place; This part message is not handled in the prior art, can be caused the message dropping problem;
The mapping server of coverage, place, position before mobile node moves and mapping server of other these mobile node mapping relations of storage have upgraded the map information after this mobile node moves; And coverage, the position of other nodes place is not when also upgrading the map information after first mobile node moves; Can be because this mobile node mapping relations inconsistent, and cause losing of message.
Summary of the invention
The embodiment of the invention provides a kind of position and has identified seamless mobile communication method and system in the separated network, has solved the defective that transmission delay is big in the prior art, packet loss is high.
The embodiment of the invention provides a kind of position and has identified seamless mobile communication method in the separated network, and said method comprises:
After first mobile node moved to the second place from primary importance, coverage, second place place was that said first mobile node distributes second place address;
Said first mobile node judges whether the said primary importance and the said second place belong to same coverage;
If coverage, second place place is updated to the mapping relations after first mobile node moves with the mapping relations of said first mobile node; Mapping relations after said first mobile node moves are the relation of said first mobile node sign and said second place address;
Otherwise coverage, said second place place is preserved the mapping relations after said first mobile node moves and is belonged to the coverage to primary importance and sends the mapping relations after said first mobile node moves;
After the mapping relations after said first mobile node moves are received in coverage, said primary importance place, preserve the mapping relations after said first mobile node moves;
When said primary importance and the said second place did not belong to same coverage, said method also comprised: the mapping relations after said first mobile node moves are sent to the coverage, place, position of correspondent node in coverage, said second place place;
Said method also comprises: coverage, said primary importance place is behind Preset Time; Receive that perhaps deletion first mobile node of second place place coverage transmission moves the notice of preceding mapping relations; Perhaps; The communication message that mapping relations before will moving according to said first mobile node are received is deleted said first mobile node and is moved preceding mapping relations after sending to coverage, said second place place.
The embodiment of the invention provides a kind of position and has identified seamless mobile communication system in the separated network, and said system comprises:
First mobile node is used for moving to the second place from primary importance;
Coverage, second place place is used to said first mobile node and distributes second place address; And when said first mobile node is judged said primary importance and the said second place and belonged to same coverage, the mapping relations of said first mobile node of self preserving are updated to the mapping relations after said first mobile node moves; Mapping relations after said first mobile node moves are the relation of said first mobile node sign and said second place address;
When first mobile node is judged said primary importance and the said second place and is not belonged to same coverage; Preserve the mapping relations after said first mobile node moves, and send the mapping relations after said first mobile node moves to coverage, primary importance place;
Coverage, said primary importance place, be used to receive the mapping relations after said first mobile node moves after, preserve the mapping relations after said first mobile node moves;
Coverage, said second place place; Also be used for when first mobile node is judged said primary importance and the said second place and do not belonged to same coverage, the mapping relations after said first mobile node is moved are sent the coverage, place, position of correspondent node;
Coverage, said primary importance place also is used for; Behind Preset Time; Receive that perhaps said first mobile node of deletion of said second place place coverage transmission moves the notice of preceding mapping relations; Perhaps, after the communication message that the mapping relations before will moving according to said first mobile node are received sends to coverage, said second place place, delete said first mobile node and move preceding mapping relations.
The embodiment of the invention is after first mobile node moves to the second place from primary importance; Upgrade in time the mapping relations of first mobile node of coverage, second place place; When the mobile node of winning is communicated by letter with other mobile node again; Can directly communicate by letter, needing in the prior art avoid transmitting communication message, shorten transmission delay through coverage, primary importance place with this first mobile node; And after the mapping relations after first mobile node of second place place coverage transmission moves are received in coverage, primary importance place; Not to delete first mobile node immediately to move preceding mapping relations; Move preceding mapping relations but preserve first mobile node earlier, have only after Preset Time is perhaps received the deletion notice of sending coverage, second place place, just delete first mobile node and move preceding mapping relations; Make in the Preset Time; Perhaps do not receive when notice deletion, before other node moves according to first mobile node with mobile after mapping relations can communicate by letter with first mobile node, solved the problem of message dropping.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do one to the accompanying drawing of required use in embodiment or the description of the Prior Art below introduces simply; Obviously, the accompanying drawing in describing below is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work property, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is seamless mobile communication method embodiment schematic flow sheet in position of the present invention and the sign separated network;
Fig. 2 is seamless mobile communication system embodiment structural representation in position of the present invention and the sign separated network.
Embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the invention clearer; To combine the accompanying drawing in the embodiment of the invention below; Technical scheme in the embodiment of the invention is carried out clear, intactly description; Obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
Fig. 1 is seamless mobile communication method embodiment schematic flow sheet in position of the present invention and the sign separated network, and as shown in Figure 1, this method comprises:
Step 101: after first mobile node moved to the second place from primary importance, coverage, second place place was that this first mobile node distributes second place address;
Concrete, coverage, second place place is the second place address that this first mobile node distributes, and comprising:
Couple in router under the second place sends notification packet to first mobile node, and this notification packet comprises the sign of the couple in router under this second place;
First mobile node sends the register requirement message according to the sign of the couple in router under the second place to this couple in router;
After couple in router under the second place is received the register requirement message, be that first mobile node distributes second place address, and send the register response message to first mobile node; This register response message comprises the edge router sign of coverage, second place place.
Step 102: first mobile node judges whether this primary importance and the second place belong to same coverage;
If then execution in step 103; Otherwise, execution in step 104;
Concrete; First mobile node judges whether the edge router sign in the register response message of receiving is identical with the edge router sign of the coverage, primary importance place of self preserving; If it is identical; Confirm that then the primary importance and the second place belong to same coverage, promptly this first mobile node moves in the zone; Otherwise, confirm that the primary importance and the second place do not belong to same coverage, promptly this first mobile node moves interregional.
The zone of an edge router management is called a coverage in the embodiment of the invention.In same coverage, set up communication by mapped system in the coverage between two nodes; Mapped system is meant in same coverage in the coverage; Edge router and any couple in router are all preserved the sign of all mobile nodes in this coverage and the mapping relations of its address in this coverage, and each couple in router is all preserved the sign of this coverage inward flange router and the mapping relations of edge router global address.Set up communication through mapped system between the coverage between the node of different coverages; Mapped system is meant the mapping relations of the storage mobile node sign that distributed by the edge router of a plurality of coverages and global address between the coverage.Concrete, a plurality of edge router primordials are in the distributed hashtable mapped system of (Distributed Hash Table is called for short DHT), and in this mapped system, the storage mobile node of distribution identifies the mapping relations with global address.
Step 103: coverage, second place place is updated to the mapping relations after first mobile node moves with the mapping relations of first mobile node of self preserving, and the mapping relations after this first mobile node moves are the relation of first mobile node sign and second place address;
Concrete; Couple in router under the second place is after first mobile node distributes second place address; The mapping relations of first mobile node of self preserving are updated to the mapping relations after first mobile node moves; Mapping relations after the announcement of the issue first positions of mobile nodes conversion and first mobile node move in coverage, second place place then; After the mapping relations after the announcement that the edge router of coverage, second place place and other couple in router are received the first positions of mobile nodes conversion and first mobile node move, the mapping relations before respectively this first mobile node of self preserving being moved are updated to the mapping relations after first mobile node moves.
Step 104: the mapping relations after first mobile node moves are preserved in coverage, second place place;
Concrete; Couple in router under the second place is after first mobile node distributes second place address; Couple in router under the second place is preserved the mapping relations after first mobile node moves; And the mapping relations after this first mobile node moved send to the edge router and other couple in router of coverage, second place place, the mapping relations that the edge router that makes coverage, second place place and other couple in router are all preserved this first mobile node.
Step 105: the mapping relations after this first mobile node moves are sent to coverage, primary importance place in coverage, second place place:
Concrete, the edge router of coverage, second place place is searched the edge router sign of this coverage, primary importance place in the mapped system between the coverage according to being identified at of first mobile node;
The edge router of coverage, second place place reaches and sends the mapping relations after first mobile node moves to mapped system between the coverage according to the edge router of above-mentioned sign to coverage, primary importance place.
Step 106: after the mapping relations after first mobile node moves are received in coverage, primary importance place, preserve the mapping relations after first mobile node moves.
Concrete; After the edge router of coverage, primary importance place is received the mapping relations after first mobile node moves; Preserve the mapping relations after this first mobile node moves; And the mapping relations after this first mobile node moved send to all couple in routers of coverage, primary importance place, make all couple in routers of coverage, primary importance place all preserve the mapping relations after this first mobile node moves.
Accordingly, this method also comprises:
The communication message that preceding mapping relations are received will be moved according to first mobile node in coverage, primary importance place, and the mapping relations after moving according to first mobile node send to coverage, second place place.
Accordingly; Coverage, primary importance place is behind Preset Time; Receive that perhaps deletion first mobile node of second place place coverage transmission moves the notice of preceding mapping relations; Perhaps, after the communication message that the mapping relations before will moving according to first mobile node are received sends to coverage, second place place, delete first mobile node and move preceding mapping relations.
That is to say; Coverage, primary importance place is after first mobile node shifts out primary importance; Do not delete earlier the mapping relations before first mobile node moves; Promptly in Preset Time, perhaps do not receive when deletion is notified the mapping relations after the mapping relations before in store first mobile node moves simultaneously and first mobile node move; Mapping relations before in store first mobile node moves are for after shifting out primary importance when first mobile node; When also not moving on to the second place, the mapping relations before Correspondent Node still can move according to first mobile node are sent communication message successfully, and promptly Correspondent Node still can send to coverage, primary importance place with communication message.When first mobile node moves to the second place; Coverage, second place place has been distributed after the address for this first mobile node; The communication message that mapping relations before coverage, primary importance place will be moved according to first mobile node are received sends to coverage, second place place; Make that communication message is not lost in the first mobile node moving process.Coverage, primary importance place is behind Preset Time; Receive that perhaps deletion first mobile node of the edge router transmission of coverage, second place place moves the notice of preceding mapping relations; Perhaps; The communication message that mapping relations before will moving according to first mobile node are received is just deleted first mobile node and is moved preceding mapping relations after sending to coverage, second place place, solves the problem of the message dropping that causes owing to mapping relations are asynchronous.
Concrete; After the mapping relations before the edge router of coverage, primary importance place is deleted first mobile node and moved; The notice of the mapping relations of issue deletion first mobile node in coverage, primary importance place; After all couple in routers of coverage, primary importance place are received the deletion notice, delete the mapping relations before this first mobile node of self preserving moves.
In the embodiment of the invention, when primary importance and the second place do not belong to same coverage, and first mobile node is when communicating by letter with correspondent node, and this method also comprises:
The mapping relations after first mobile node moves are sent to the coverage, place, position of correspondent node in coverage, second place place;
After the mapping relations after first mobile node moves are received in the coverage, place, position of correspondent node, upgrade the mapping relations of first mobile node.
Concrete, the edge router of coverage, second place place is searched the edge router sign of the coverage, place, position of above-mentioned correspondent node in mapped system between the coverage;
The edge router of coverage, second place place is according to the edge router sign of the coverage, place, position of correspondent node, and the edge router that belongs to the coverage to the position of correspondent node sends the mapping relations after first mobile node moves.
After the edge router of the coverage, place, position of correspondent node is received the mapping relations after first mobile node moves; The mapping relations of first mobile node of self preserving are updated to the mapping relations after first mobile node moves; And the mapping relations after first mobile node moved send to the couple in router under the position of correspondent node, make all couple in routers of the coverage, place, position of correspondent node that the mapping relations of first mobile node of self preserving are updated to the mapping relations after first mobile node moves; Further; Mapping relations after the edge router of the coverage, place, position of correspondent node can also move first mobile node send to other couple in router, make the affiliated couple in router in position of correspondent node all the mapping relations of first mobile node of self preserving are updated to the mapping relations after first mobile node moves with other couple in router.
In the embodiment of the invention; After the edge router of coverage, place, correspondent node position upgraded the mapping relations of first mobile node with all couple in routers, response message was returned to coverage, second place place in coverage, place, correspondent node position; First mobile node and correspondent node communicate based on the mapping relations of first mobile node after upgrading then.
In the prior art; After the mapping relations of first mobile node have been upgraded in the coverage, place, position of correspondent node; Correspondent node still communicates through the primary importance coverage, place and first mobile node; The edge router that is the coverage, position place of correspondent node sends to the edge router of coverage, primary importance place with communication message, and the edge router that this communication message is transmitted to coverage, second place place by the edge router of coverage, primary importance place is to realize communication; And in the embodiment of the invention; After the mapping relations of first mobile node have been upgraded in the coverage, place, position of correspondent node; The edge router of the coverage, place, position of correspondent node can directly send to communication message the edge router of coverage, second place place, thereby has saved transmission delay.
In the embodiment of the invention after first mobile node moves to the second place from primary importance; First mobile node judges whether the primary importance and the second place belong to same coverage; If then the mapping relations of first mobile node of self preserving are upgraded in coverage, second place place; If not; After the mapping relations of first mobile node are preserved in coverage, second place place; Also send the mapping relations after first mobile node moves, make coverage, primary importance place also preserve the mapping relations after first mobile node moves, behind Preset Time to coverage, primary importance place; Perhaps after receiving the deletion notice that send coverage, second place place; Just delete first mobile node and move preceding mapping relations, rather than delete first mobile node immediately and move preceding mapping relations, therefore in Preset Time; Before other node moves according to first mobile node with move after mapping relations all can successfully send communication message to first mobile node, solve the problem of the message dropping that causes owing to mapping relations are inconsistent; And the mapping relations after also move first mobile node coverage, second place place send to the coverage, place, position of correspondent node; Make the position of correspondent node belong to the mapping relations that first mobile node of self preserving is upgraded in the coverage; Therefore first mobile node and correspondent node can direct communications, needing in the prior art to have avoided primary importance to belong to the defective of the propagation delay time that forwarding brought of coverage; And in the prior art mapping relations of mobile node and address are kept in the mapping server; The couple in router that mobile node is corresponding need send mapping request to mapping server; Obtain address information in the corresponding zone of mobile node, will inevitably have the inquiry time delay; And because the node scale of a coverage can be very not big; Router is all in store with each couple in router on the edge of with the mapping relations of mobile node and address in a coverage in the embodiment of the invention; Thereby in the transmission course of communication message; The couple in router that mobile node is corresponding can be inquired about local sign mapping table and promptly get address information in the corresponding zone of mobile node, thereby has avoided the inquiry time delay.
Fig. 2 is seamless mobile communication system embodiment structural representation in position of the present invention and the sign separated network, and as shown in Figure 2, this system comprises: first mobile node 1, coverage 2, primary importance place and coverage 3, second place place;
Wherein, first mobile node 1 is used for moving to the second place from primary importance;
When first mobile node 1 is judged primary importance and the second place and is not belonged to same coverage, preserve the mapping relations after first mobile node 1 moves, and the mapping relations of sending after first mobile node 1 moves to coverage, primary importance place 2;
Couple in router 31 under the second place is used to first mobile node 1 and distributes second place address; And when primary importance and the said second place belong to same coverage; The mapping relations of first mobile node 1 that self is preserved are updated to the mapping relations after first mobile node 1 moves, and the mapping relations after first mobile node 1 moved send to the edge router 32 of coverage, second place place;
The edge router 32 of coverage, second place place, be used to receive the mapping relations after first mobile node 1 moves after, the mapping relations of first mobile node of self preserving 1 are updated to the mapping relations after first mobile node 1 moves.
Couple in router 31 under the second place; Also be used for when primary importance and the second place do not belong to same coverage; Preserve the mapping relations after first mobile node 1 moves, and the mapping relations of first mobile node 1 are sent to the edge router 32 of coverage, second place place;
The edge router 32 of coverage, second place place also is used to preserve the mapping relations after first mobile node 1 moves; Mapping relations after also being used for first mobile node 1 moved send to coverage 2, primary importance place.
When first mobile node 1 communicates with correspondent node 4; This GSM also comprises the coverage 5, place, position of correspondent node; Accordingly; Coverage 3, second place place, the mapping relations after also being used for first mobile node 1 moved are sent the coverage 5, place, position of correspondent node;
The coverage 5, place, position of correspondent node comprises: the couple in router 52 under the edge router 51 of the coverage, place, position of correspondent node and the position of correspondent node;
The edge router 51 of the coverage, place, position of correspondent node; After being used to receive the mapping relations after first mobile node 1 moves; The mapping relations of first mobile node 1 that self is preserved are updated to the mapping relations after first mobile node 1 moves, and the mapping relations after first mobile node 1 moved send to the couple in router 52 under the correspondent node;
Couple in router 52 under the position of correspondent node, be used to receive the mapping relations after first mobile node 1 moves after, the mapping relations of first mobile node of self preserving 1 are updated to the mapping relations after first mobile node 1 moves.
The edge router 21 of coverage, primary importance place; After being used to receive the mapping relations after first mobile node 1 moves; Preserve the mapping relations after first mobile node 1 moves, and the mapping relations after first mobile node 1 moved send to the couple in router 22 under the primary importance;
Couple in router 22 under the primary importance, be used to receive the mapping relations after first mobile node 1 moves after, preserve the mapping relations after first mobile node 1 moves.
Need to prove, for GSM first embodiment, because it is basically corresponding to method first embodiment, so relevant part gets final product referring to the part explanation of method first embodiment.
In the embodiment of the invention after first mobile node moves to the second place from primary importance; First mobile node judges whether the primary importance and the second place belong to same coverage; If then the mapping relations of first mobile node of self preserving are upgraded in coverage, second place place; If not; After the mapping relations of first mobile node are preserved in coverage, second place place; Also send the mapping relations after first mobile node moves, make coverage, primary importance place also preserve the mapping relations after first mobile node moves, behind Preset Time to coverage, primary importance place; Perhaps after receiving the deletion notice that send coverage, second place place; Just delete first mobile node and move preceding mapping relations, rather than delete first mobile node immediately and move preceding mapping relations, therefore in Preset Time; Before other node moves according to first mobile node with move after mapping relations all can successfully send communication message to first mobile node, solve the problem of the message dropping that causes owing to mapping relations are inconsistent; And the mapping relations after also move first mobile node coverage, second place place send to the coverage, place, position of correspondent node; Make the position of correspondent node belong to the mapping relations that first mobile node of self preserving is upgraded in the coverage; Therefore first mobile node and correspondent node can direct communications, needing in the prior art to have avoided primary importance to belong to the defective of the propagation delay time that forwarding brought of coverage; And in the prior art mapping relations of mobile node and address are kept in the mapping server; The couple in router that mobile node is corresponding need send mapping request to mapping server; Obtain address information in the corresponding zone of mobile node, will inevitably have the inquiry time delay; And because the node scale of a coverage can be very not big; Router is all in store with each couple in router on the edge of with the mapping relations of mobile node and address in a coverage in the embodiment of the invention; Thereby in the transmission course of communication message; The couple in router that mobile node is corresponding can be inquired about local sign mapping table and promptly get address information in the corresponding zone of mobile node, thereby has avoided the inquiry time delay.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can be accomplished through the relevant hardware of program command; Aforesaid program can be stored in the computer read/write memory medium; This program the step that comprises said method embodiment when carrying out; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
What should explain at last is: above embodiment is only in order to explaining technical scheme of the present invention, but not to its restriction; Although with reference to previous embodiment the present invention has been carried out detailed explanation, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these are revised or replacement, do not make the spirit and the scope of the essence disengaging various embodiments of the present invention technical scheme of relevant art scheme.
Claims (21)
1. seamless mobile communication method in a position and the sign separated network is characterized in that said method comprises:
After first mobile node moved to the second place from primary importance, coverage, second place place was that said first mobile node distributes second place address;
Said first mobile node judges whether the said primary importance and the said second place belong to same coverage;
If coverage, second place place is updated to the mapping relations after first mobile node moves with the mapping relations of said first mobile node; Mapping relations after said first mobile node moves are the relation of said first mobile node sign and said second place address;
Otherwise coverage, said second place place is preserved the mapping relations after said first mobile node moves and is belonged to the coverage to primary importance and sends the mapping relations after said first mobile node moves;
After the mapping relations after said first mobile node moves are received in coverage, said primary importance place, preserve the mapping relations after said first mobile node moves;
When said primary importance and the said second place did not belong to same coverage, said method also comprised: the mapping relations after said first mobile node moves are sent to the coverage, place, position of correspondent node in coverage, said second place place;
Said method also comprises: coverage, said primary importance place is behind Preset Time; Receive that perhaps deletion first mobile node of second place place coverage transmission moves the notice of preceding mapping relations; Perhaps; The communication message that mapping relations before will moving according to said first mobile node are received is deleted said first mobile node and is moved preceding mapping relations after sending to coverage, said second place place.
2. seamless mobile communication method in position according to claim 1 and the sign separated network is characterized in that, coverage, said second place place is the second place address that said first mobile node distributes, and comprising:
Couple in router under the said second place sends notification packet to said first mobile node, the sign of the couple in router under said notification packet comprises after the said second place;
Said first mobile node sends the register requirement message according to the sign of the couple in router under the said second place to said couple in router;
After couple in router under the said second place is received said register requirement message, for said first mobile node distributes second place address; And to said first mobile node transmission register response message, said register response message comprises the edge router sign of coverage, said second place place.
3. seamless mobile communication method in position according to claim 2 and the sign separated network is characterized in that said first mobile node judges that whether the said primary importance and the said second place belong to the same area, comprising:
Said first mobile node judges whether the edge router sign in the said register response message is identical with the edge router sign of the coverage, primary importance place of self preserving; If identical, confirm that then the said primary importance and the said second place belong to the same area; Otherwise, confirm that the said primary importance and the said second place do not belong to the same area.
4. seamless mobile communication method in position according to claim 1 and the sign separated network; It is characterized in that; Coverage, said second place place is updated to the mapping relations after first mobile node moves with the mapping relations of said first mobile node, comprising:
Couple in router under the said second place is updated to the mapping relations after said first mobile node moves with the mapping relations of said first mobile node that self preserves; And the mapping relations after said first mobile node moved send to the edge router of coverage, said second place place, and the edge router that makes coverage, said second place place is updated to the mapping relations after said first mobile node moves with the mapping relations of said first mobile node of self preserving.
5. seamless mobile communication method in position according to claim 4 and the sign separated network is characterized in that, sets up communication through mapped system in the coverage between the node in the same coverage; Mapped system is meant the sign that edge router and any couple in router in the said coverage are all preserved all mobile nodes in this coverage and the mapping relations of its address in this coverage in the said coverage, and each couple in router is all preserved the edge router sign of this coverage and the sign mapping relations of edge router global address.
6. seamless mobile communication method in position according to claim 1 and the sign separated network is characterized in that, sets up communication through mapped system between the coverage between the node of different coverages; Mapped system is meant the mapping relations of the storage mobile node sign that distributed by the edge router of a plurality of coverages and global address between said coverage.
7. seamless mobile communication method in position according to claim 6 and the sign separated network; It is characterized in that; Coverage, said second place place is preserved the mapping relations after said first mobile node moves and is belonged to the coverage to primary importance and sends the mapping relations after said first mobile node moves, and comprising:
Couple in router under the said second place is preserved the mapping relations after said first mobile node moves, and the mapping relations after said first mobile node moved send to the edge router that the said second place belongs to the coverage;
After the edge router of coverage, said second place place is received the mapping relations after said first mobile node moves, preserve the mapping relations after said first mobile node moves; And the mapping relations after said first mobile node moved send to coverage, said primary importance place.
8. seamless mobile communication method in position according to claim 7 and the sign separated network; It is characterized in that; Mapping relations after the edge router of coverage, said second place place moves said first mobile node send to coverage, said primary importance place, comprising:
The edge router of coverage, said second place place is searched the edge router sign of coverage, said primary importance place in the mapped system between the coverage according to being identified at of said first mobile node;
The edge router of coverage, said second place place sends the mapping relations after said first mobile node moves according to said sign mapped system between the edge router of coverage, said primary importance place and said coverage.
9. according to seamless mobile communication method in claim 7 or 8 described positions and the sign separated network, it is characterized in that when said primary importance and the said second place did not belong to same coverage, said method also comprised:
After the mapping relations after said first mobile node moves are received in coverage, place, the position of said correspondent node, the mapping relations of said first mobile node of self preserving are updated to the mapping relations after said first mobile node moves.
10. seamless mobile communication method in position according to claim 9 and the sign separated network; It is characterized in that; The mapping relations after said first mobile node moves are sent to the coverage, place, position of correspondent node in coverage, said second place place, comprising:
The edge router of coverage, said second place place is searched the edge router sign of place, the position service of said correspondent node in mapped system between the coverage;
The edge router of coverage, said second place place sends the mapping relations after said first mobile node moves according to the edge router of said sign to the coverage, place, position of said correspondent node.
11. seamless mobile communication method in position according to claim 9 and the sign separated network; It is characterized in that; After the mapping relations after said first mobile node moves are received in the coverage, place, position of said correspondent node; The mapping relations of said first mobile node of self preserving are updated to the mapping relations after said first mobile node moves, comprise:
After the edge router of the coverage, place, position of said correspondent node is received the mapping relations after said first mobile node moves; The mapping relations of said first mobile node of self preserving are updated to the mapping relations after said first mobile node moves; And the mapping relations after said first mobile node moved send to the couple in router under the position of said correspondent node, make the couple in router under the position of said correspondent node that the mapping relations of first mobile node of self preserving are updated to the mapping relations after first mobile node moves.
12., it is characterized in that said method also comprises according to seamless mobile communication method in claim 10 or 11 described positions and the sign separated network:
Response message is returned to coverage, said second place place after the mapping relations of said first mobile node are upgraded in coverage, place, said correspondent node position;
Said first mobile node and said correspondent node communicate based on the mapping relations of said first mobile node after upgrading.
13. seamless mobile communication method in position according to claim 1 and the sign separated network; It is characterized in that; After the mapping relations after said first mobile node moves are received in coverage, said primary importance place, preserve the mapping relations after said first mobile node moves, comprising:
After the edge router of coverage, said primary importance place is received the mapping relations after said first mobile node moves; Preserve the mapping relations after said first mobile node moves; And the mapping relations after said first mobile node moved send to the couple in router under the said primary importance, make the couple in router under the said primary importance preserve the mapping relations after said first mobile node moves.
14. seamless mobile communication method in position according to claim 1 and the sign separated network; It is characterized in that; Said method comprises: the communication message that preceding mapping relations are received will be moved according to said first mobile node in coverage, said primary importance place, and the mapping relations after moving according to said first mobile node send to coverage, said second place place.
15. seamless mobile communication system in a position and the sign separated network is characterized in that said system comprises:
First mobile node is used for moving to the second place from primary importance;
Coverage, second place place is used to said first mobile node and distributes second place address; And when said first mobile node is judged said primary importance and the said second place and belonged to same coverage, the mapping relations of said first mobile node of self preserving are updated to the mapping relations after said first mobile node moves; Mapping relations after said first mobile node moves are the relation of said first mobile node sign and said second place address;
When first mobile node is judged said primary importance and the said second place and is not belonged to same coverage; Preserve the mapping relations after said first mobile node moves, and send the mapping relations after said first mobile node moves to coverage, primary importance place;
Coverage, said primary importance place, be used to receive the mapping relations after said first mobile node moves after, preserve the mapping relations after said first mobile node moves;
Coverage, said second place place; Also be used for when first mobile node is judged said primary importance and the said second place and do not belonged to same coverage, the mapping relations after said first mobile node is moved are sent the coverage, place, position of correspondent node;
Coverage, said primary importance place also is used for; Behind Preset Time; Receive that perhaps said first mobile node of deletion of said second place place coverage transmission moves the notice of preceding mapping relations; Perhaps, after the communication message that the mapping relations before will moving according to said first mobile node are received sends to coverage, said second place place, delete said first mobile node and move preceding mapping relations.
16. seamless mobile communication system in position according to claim 15 and the sign separated network is characterized in that, coverage, said second place place comprises:
Couple in router under the said second place is used to said first mobile node and distributes second place address; When said primary importance and the said second place belong to same coverage; The mapping relations of said first mobile node that self is preserved are updated to the mapping relations after first mobile node moves, and the mapping relations after said first mobile node moved send to the edge router that the said second place belongs to the coverage;
The edge router of coverage, said second place place, be used to receive the mapping relations after said first mobile node moves after, the mapping relations of first mobile node of self preserving are updated to the mapping relations after said first mobile node moves.
17. seamless mobile communication system in position according to claim 16 and the sign separated network; It is characterized in that; Couple in router under the said second place; Also be used for when said primary importance and the said second place do not belong to same coverage, preserving the mapping relations after said first mobile node moves, and the mapping relations of said first mobile node are sent to the edge router of coverage, said second place place;
The edge router of coverage, said second place place also is used to preserve the mapping relations after said first mobile node moves; Mapping relations after also being used for said first mobile node moved send to coverage, said primary importance place.
18. seamless mobile communication system in position according to claim 15 and the sign separated network; It is characterized in that; The coverage, place, position of said correspondent node; After also being used to receive the mapping relations after said first mobile node moves, the mapping relations of said first mobile node that self is preserved are updated to the mapping relations after said first mobile node moves.
19. seamless mobile communication system in position according to claim 18 and the sign separated network is characterized in that, the coverage, place, position of said correspondent node comprises:
The edge router of the coverage, place, position of said correspondent node; After being used to receive the mapping relations after said first mobile node moves; The mapping relations of said first mobile node that self is preserved are updated to the mapping relations after said first mobile node moves, and the mapping relations after said first mobile node moved send to the affiliated couple in router of correspondent node;
Couple in router under the position of said correspondent node; After being used to receive the mapping relations after said first mobile node moves, the mapping relations of said first mobile node that self is preserved are updated to the mapping relations after said first mobile node moves.
20. seamless mobile communication system in position according to claim 15 and the sign separated network is characterized in that, coverage, said primary importance place comprises:
The edge router of coverage, said primary importance place; After being used to receive the mapping relations after said first mobile node moves; Preserve the mapping relations after said first mobile node moves, and the mapping relations after said first mobile node moved send to the couple in router under the said primary importance;
Couple in router under the said primary importance, be used to receive the mapping relations after said first mobile node moves after, preserve the mapping relations after said first mobile node moves.
21. seamless mobile communication system in position according to claim 15 and the sign separated network; It is characterized in that; Coverage, said primary importance place also is used for; To move the communication message that preceding mapping relations are received according to said first mobile node, the mapping relations after moving according to said first mobile node send to coverage, said second place place.
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| CN102572999B (en) * | 2010-12-27 | 2016-07-06 | 中兴通讯股份有限公司 | A kind of method and system of data message route |
| CN102355420B (en) * | 2011-10-11 | 2014-03-19 | 北京交通大学 | Method for solving mapping failure |
| CN105307146B (en) * | 2015-11-12 | 2018-06-19 | 中国电子科技集团公司第三十研究所 | A kind of method and device for realizing VoIP system mobile terminal locations mobile handoff |
| CN105306482B (en) * | 2015-11-12 | 2018-12-21 | 中国电子科技集团公司第三十研究所 | A kind of calling-control method of the flooding addressing towards special applications |
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