CN105188104A - Wireless network communication implementation method - Google Patents
Wireless network communication implementation method Download PDFInfo
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- CN105188104A CN105188104A CN201510564536.0A CN201510564536A CN105188104A CN 105188104 A CN105188104 A CN 105188104A CN 201510564536 A CN201510564536 A CN 201510564536A CN 105188104 A CN105188104 A CN 105188104A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W40/00—Communication routing or communication path finding
- H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W40/00—Communication routing or communication path finding
- H04W40/24—Connectivity information management, e.g. connectivity discovery or connectivity update
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The invention discloses a wireless network communication implementation method. A wireless network is divided into more than two subnets, wherein each subnet comprises an access router and more than two mobile nodes, and the subnets are connected with the internet through the access routers. Each subnet comprises three types of nodes: a data providing node, a data consumption node and an ordinary node, wherein the data providing node is a mobile node having the privilege to provide data of a specific type, the data consumption node is a mobile node having the privilege to consume data of a specific type, and the ordinary node is a mobile node which is neither a data providing node nor a data consumption node and used for executing routing forwarding function. The wireless network can acquire network data through the implementation method provided by the invention while maintaining the continuity of communication and shortening data acquisition cost and delay; further the implementation method can be applied to the fields such as road condition monitoring and vehicle management, and has wide application range.
Description
Technical field
The present invention relates to a kind of computer internet communication technical field, in particular a kind of implementation method of wireless communication.
Background technology
Wireless network, as a kind of Novel Communication network, can realize the multi-hop wireless communication between node and node.Along with the development of radio network technique and continuing to bring out of various new opplication, in the urgent need to wireless network can accessing Internet to meet the application demand of user's sharp increase.
Wireless network has the features such as translational speed is fast, number of nodes is many.The advantages such as the Internet (hereinafter referred to as IPv6 network) based on IPv6 has mobility support, address resource enriches.Therefore, wireless network access IPv6 network becomes the ideal solution meeting user's application demand.
Current researcher proposes wireless network and is obtained the pattern of network service by the Internet of access based on IPv6 and defined corresponding protocol stack, but because the architecture of wireless network is different from IPv6 network, existing cut-in method has some limitation.Therefore need the Realization Method of Communication proposing a kind of wireless network, thus reduce data obtaining time, improve service quality.
Summary of the invention
Goal of the invention: technical problem to be solved by this invention is for the deficiencies in the prior art, provides a kind of implementation method of wireless communication.
Technical scheme: the implementation method that the invention discloses a kind of wireless communication, it is characterized in that, described wireless network is divided into plural subnet, and each subnet comprises a couple in router and plural mobile node, and subnet is connected with the Internet by couple in router;
Three category nodes are comprised: data provide node in described subnet, data consumption node and ordinary node, wherein data provide node to provide a kind of specific type of data (such as having permission, film) mobile node, data consumption node is have permission the mobile node consuming a kind of specific type of data, ordinary node is for neither data provide node neither the mobile node of data consumption node, for performing route forwarding function;
Described wireless network comprise the data of a kind of particular type of unique identification appoint broadcast address, all having permission provides the data of this kind of specific type of data to provide node to form an anycast group, this anycast group by appoint broadcast address unique identification, be mark this kind of specific type of data appoint broadcast address; Node in anycast group is called anycast group member;
All data consumption nodes consuming a kind of specific type of data that has permission form a multicast group, and this multicast group is by a multicast address unique identification; Node in multicast group is called multicast members;
The unicast address of a mobile node is used for overall route, be made up of two parts: Part I is network prefix, length is 128-i bit, such as, i can be set to 64 bits or 32 bits, network prefix unique identification subnet, the network prefix of the unicast address of all mobile nodes in a subnet is all identical, and its value equals the network prefix of the couple in router in same subnet; Part II is node ID, and length is i bit, and this node ID has uniqueness in subnet, unique identification mobile node; The allocation space of node ID is [1,2
j], j<i;
Appoint for one and broadcast address and be made up of two parts: network prefix and appoint and broadcast ID, the length of network prefix is 128-i bit, appoints the length broadcasting ID to be i bit, appoints to broadcast address and have network uniqueness; The allocation space broadcasting ID is appointed to be [2
j+ 1,2
i-1];
A Data Placement K part for particular type, being labeled as of a kth partial content: appoint and broadcast address k; K belongs to 1 ~ K; Such as, a TV play has K collection, and a kth partial content identifies the kth collection of a TV play;
A data address, for obtaining a kind of data of particular type, comprises three parts: Part I is the node ID in unicast address, Part II be appoint broadcast in address appoint broadcast ID, Part III be part gather, its value is the value of the part of institute's request msg; Part set can be 1,2 equivalences, if this value is 0, then illustrates that the data of request are complete data, such as entire TV series;
A multicast members preserves a data routing table, provides appointing of these multicast group data to broadcast information about firms for recording; The information of a data route table items record anycast group member, a data route table items is divided into four territories: unicast address territory, appoint and broadcast address field, part territory and distance domain, wherein unicast address territory is the unicast address of anycast group member, appoint broadcast address thresholding for multicast group have the right obtain data type corresponding to appoint broadcast address, the corresponding part number of part thresholding identification data, such as, the 1st collection of TV series can be expressed as when part thresholding is 1; Distance domain represents the jumping figure of multicast members's distance anycast group member; A subnet comprises more than one multicast group, and it is the group membership of each multicast group in this subnet that the couple in router of this subnet is defaulted as.
Said process constructs the basic architecture of Network Capture data, and by above-mentioned network architecture, data consumption node can provide node to obtain data from nearest data, thus significantly reduces cost and the delay of data acquisition.
In the method for the invention, the group membership of broadcasting P1 in office appoints that to broadcast address be A1, and multicast address is that the multicast members of M1 is when having permission the data obtaining multicast address A1 definition; Anycast group member P1 proceeds as follows after creating a kth partial data of appointing and broadcasting address A1 definition:
Step 101: start;
Step 102: anycast group member P1 sends a data sharing message, the destination address of data sharing message is multicast address M1, and source address is the unicast address of anycast group member P1, and the load of data sharing message is that k broadcasts address A1 with appointing;
Step 103: multicast address is after the multicast members of M1 receives data sharing message, a list item is increased in the data routing table of oneself, the unicast address territory of list item is the unicast address of anycast group member P1, appoint that to broadcast address field be A1, part thresholding is k, and distance domain is the distance of this multicast members and anycast group member P1;
Step 104: terminate.
Said process constructs the data routing table arriving anycast group member, and by above-mentioned data routing table, data consumption node can provide node to obtain data from nearest data, thus significantly reduces cost and the delay of data acquisition.
In the method for the invention, when the multicast members that multicast address is M1 has permission the data obtaining and appoint and broadcast address A1 mark, if multicast members C3 is positioned at subnet N1, and appoint the network prefix broadcasting address A1 to be under the jurisdiction of N1, multicast address is that the multicast members C3 of M1 will obtain the kth partial data of appointing and broadcasting address A1 and identifying, then perform following process:
Step 201: start;
Step 202: multicast members C3 checks oneself data routing table, chosen distance oneself recently and can provide the anycast group member P2 appointing and broadcast the kth partial data that address A1 identifies, build a data address, the node ID of data address is the node ID of anycast group member P2, appoint broadcast ID be appoint broadcast address A1 corresponding appoint broadcast ID, part rendezvous value is k; Multicast members C3 sends data request information to anycast group member P2, and the destination address of data request information is data address, and the source address of data request information is the unicast address of multicast members C3;
Step 203: the data request information that the node receiving data request information is divided into three kinds of situation process to receive:
Situation 1: if the node receiving data request information is the multicast members of multicast address M1 and has the kth partial data of appointing and broadcasting address A1 and identifying, the node so receiving data request information returns a data response message and stops forwarding the data request information received, the source address of data response message is the unicast address of the node oneself receiving data request information, destination address is the unicast address of multicast members C3, the load of data response message is appoint the kth partial data broadcast address A1 and identify, and carry out step 205;
Situation 2: if the node receiving data request information is anycast group member P2, carry out step 204;
Situation 3: if situation 1 and situation 2 all do not meet, then data request information is forwarded to down hop by the node receiving data request information, carry out step 203;
Step 204: anycast group member P2 returns a data response message to multicast members C3, the source address of data response message is the unicast address of anycast group member P2, destination address is the unicast address of multicast members C3, and load is appoint the kth partial data broadcast address A1 and identify;
Step 205: if the node receiving data response message is the multicast members in multicast address M1, and this multicast members also wants to obtain the kth partial data of appointing and broadcasting address A1 and identifying simultaneously, so this multicast members directly preserves the kth partial data that appointing in data response message broadcast address A1 and identify, and final data response message arrives multicast members C3;
Step 206: terminate.
By said process, data consumption node can provide node to obtain data at local network from nearest data, thus significantly reduces cost and the delay of data acquisition.
In the method for the invention, multicast address is that the multicast members of M1 has permission the data obtaining and appoint and broadcast address A1 and identify, multicast members C3 is positioned at subnet N1, couple in router in subnet N1 is AR1, the network prefix broadcasting address A1 is appointed to be under the jurisdiction of N1, multicast address is that the multicast members C3 of M1 obtains the kth partial data of appointing and broadcasting address A1 and identifying from anycast group member P2, after multicast members C3 sends to the data request information of anycast group member P2 to reach the previous dive node E1 of anycast group member P2, if previous dive node E1 detects that anycast group member P2 is unreachable, so multicast members C3 appoints from crossing following Procedure Acquisition the kth partial data broadcast address A1 and identify:
Step 301: start;
Step 302: the node ID in the destination address of the data request information received is revised as the node ID of couple in router AR1 by previous dive node E1, then sends data request information;
Step 303: the data request information that the node receiving data request information is divided into three kinds of situation process to receive:
Situation 1: if the node receiving data request information is the multicast members of multicast address M1 and has the kth partial data of appointing and broadcasting address A1 and identifying, the node so receiving data request information returns a data response message and stops forwarding the data request information received, the source address of data response message is the unicast address of the node oneself receiving data request information, destination address is the unicast address of multicast members C3, load is appoint the kth partial data broadcast address A1 and identify, and carry out step 307;
Situation 2: if the node receiving data request information is couple in router AR1, carry out step 304;
Situation 3: if situation 1 and situation 2 all do not meet, then data request information is forwarded to down hop by the node receiving data request information, carry out step 303;
Step 304: couple in router AR1 chosen distance oneself recently and can provide the anycast group member P3 appointing and broadcast the kth partial data that address A1 identifies, the node ID of the destination address of the data request information received is updated to the node ID of anycast group member P3, then sends this data request information;
Step 305: the data request information that the node receiving data request information is divided into three kinds of situation process to receive:
Situation 1: if the node receiving data request information is the multicast members of multicast address M1 and has the kth partial data of appointing and broadcasting address A1 and identifying, the node so receiving data request information returns a data response message and stops forwarding the data request information received, the source address of data response message is the unicast address of the node receiving data request information, destination address is the unicast address of multicast members C3, load is appoint the kth partial data broadcast address A1 and identify, and carry out step 307;
Situation 2: if the node receiving data request information is anycast group member P3, then carry out step 306;
Situation 3: if situation 1 and situation 2 all do not meet, then data request information is forwarded to down hop by the node receiving data request information, carry out step 305;
Step 306: anycast group member P3 returns a data response message to multicast members C3, the source address of data response message is its unicast address, and destination address is the unicast address of multicast members C3, and load is appoint the kth partial data broadcast address A1 and identify;
Step 307: if also want the while that the node receiving data response message being the multicast members in multicast address M1 to obtain the kth partial data of appointing and broadcasting address A1 and identifying, the node so receiving data response message directly preserves the kth partial data that appointing in data response message broadcast address A1 and identify, and final data response message arrives multicast members C3;
Step 308: terminate.
If data consumption node cannot obtain data from providing apart from up-to-date data node, so it can provide node to obtain data from other data of local network, thus has increased considerably the success rate obtaining data.
In the method for the invention, multicast address is that the multicast members of M1 has permission the data obtaining and appoint and broadcast address A1 and identify, if multicast members C3 is positioned at subnet N1, the couple in router of subnet N1 is AR1, the network prefix broadcasting address A2 is appointed to be under the jurisdiction of N2, if the multicast members C3 that multicast address is M1 will obtain the kth partial data of appointing and broadcasting address A2 and identifying, so first multicast members C3 checks data routing table, broadcast ID be A2 and part thresholding is the list item of k if exist to appoint, so multicast members C3 performs step 201 and obtains the kth partial data of appointing and broadcasting address A2 and identifying to step 205, otherwise multicast members C3 performs following Procedure Acquisition data:
Step 401: start;
Step 402: multicast members C3 sends teledata request message, the destination address of teledata request message broadcasts address A2 for appointing, and source address is the unicast address of multicast members C3, and load is k;
Step 403: the teledata request message that the node receiving data request information is divided into three kinds of situation process to receive:
Situation 1: if the node receiving teledata request message is the multicast members of multicast address M1 and has the kth partial data of appointing and broadcasting address A2 and identifying, the node so receiving teledata request message returns a teledata response message and stops forwarding the teledata request message received, the source address of teledata response message is its unicast address, destination address is the unicast address of multicast members C3, load is appoint the kth partial data broadcast address A2 and identify, and carry out step 410;
Situation 2: if the node receiving teledata request message is couple in router AR1, carry out step 404;
Situation 3: if situation 1 and situation 2 all do not meet, then teledata request message is forwarded to down hop by the node receiving teledata request message, carry out step 403;
Step 404: the teledata request message received is sent to the Internet by couple in router AR1, finally, teledata request message arrives couple in router AR2;
Step 405: couple in router AR2 checks oneself data routing table, chosen distance oneself recently and can provide the anycast group member P3 appointing and broadcast the kth partial data that address A2 identifies, couple in router AR2 builds a data address, the node ID of data address is the node ID of anycast group member P3, appoint broadcast ID be appoint broadcast address A2 appoint broadcast ID, part rendezvous value is k, couple in router AR2 sends data request information to anycast group member P3, the destination address of data request information is data address, and source address is the unicast address of couple in router AR2;
Step 406: the data request information that the node receiving data request information is divided into three kinds of situation process to receive:
Situation 1: if the node receiving data request information is the multicast members of multicast address M1 and has the kth partial data of appointing and broadcasting address A2 and identifying, the node so receiving data request information returns a data response message and stops forwarding the data request information received, the source address of data response message is its unicast address, destination address is the unicast address of couple in router AR2, load is appoint the kth partial data broadcast address A2 and identify, and carry out step 408;
Situation 2: if the node receiving data request information is anycast group member P3, carry out step 407;
Situation 3: if situation 1 and situation 2 all do not meet, then data request information is forwarded to down hop by the node receiving data request information, carries out step: 406;
Step 407: anycast group member P3 returns a data response message to couple in router AR2, the source address of data response message is its unicast address, destination address is the unicast address of couple in router AR2, and load is appoint the kth partial data broadcast address A2 and identify;
Step 408: if the node receiving data response message is the multicast members in multicast address M1, this multicast members also wants to obtain the kth partial data of appointing and broadcasting address A2 and identifying simultaneously, so this multicast members directly preserves the kth partial data that appointing in data response message broadcast address A2 and identify, and final data response message arrives couple in router AR2;
Step 409: couple in router AR2 returns a teledata response message, the destination address of teledata response message is the unicast address of multicast members C3, and load is appoint the kth partial data broadcast address A2 and identify;
Step 410: if the node receiving teledata response message is the multicast members in multicast address M1, this multicast members also wants to obtain the kth partial data of appointing and broadcasting address A2 and identifying simultaneously, so this multicast members directly preserves the kth partial data that appointing in data response message broadcast address A2 and identify, and final teledata response message arrives multicast members C3;
Step 411: terminate.
If data consumption node cannot obtain data from local network, so it can provide node Remote Acquisitioning data by the data of other networks, thus has increased considerably the success rate obtaining data.
In the method for the invention, each anycast group member regularly sends updating message to the couple in router of place network, the source address of updating message is the unicast address of anycast group member, and what load was place anycast group appoints the data portion score value k broadcasting address and can provide;
If in the given time, such as 10 minutes, couple in router does not receive the updating message of anycast group member, then list item corresponding for this anycast group member is deleted from data routing table, then couple in router obtains this multicast members broadcasting the data that address defines and sends a deletion message to having the right, the destination address deleting message is the multicast address of multicast group, and load is the unicast address of this anycast group member; Multicast members checks the data routing table of oneself after receiving and deleting message, deletes the route table items that unicast address thresholding equals the unicast address deleted in message;
Anycast group member appoints that to broadcast address be A1, after anycast group member moves to a new subnet, couple in router to new subnet sends updating message, the couple in router receiving updating message increases the list item of this anycast group member in the data routing table of oneself, obtain to having the right simultaneously and appoint the multicast members broadcasting the data that address A1 defines to send an increase message, the destination address increasing message is the multicast address of this multicast group, load is the unicast address of this anycast group member, appoints the data portion score value k broadcasting address and can provide; Multicast members increases the route table items of this anycast group member after receiving and increasing message in data routing table.
Said process ensure that the correctness of data routing table, even if data provide node from a Network Mobility to another one network, data consumption node is appointed and so can be searched nearest data by data routing table and provide node, thus provide node to obtain data from nearest data, thus increased considerably the success rate obtaining data, also reduce the cost and delay that obtain data.
Beneficial effect: the implementation method that the invention provides a kind of wireless communication, described wireless network can obtain network data by implementation method provided by the present invention, keep the continuity communicated simultaneously, shorten data acquisition cost and delay, the present invention can be applicable to the fields such as road conditions monitoring, vehicle management, is with a wide range of applications.
Accompanying drawing explanation
To do the present invention below in conjunction with the drawings and specific embodiments and further illustrate, above-mentioned and/or otherwise advantage of the present invention will become apparent.
Fig. 1 is wireless network architecture schematic diagram of the present invention.
Fig. 2 is unicast address structural representation of the present invention.
Fig. 3 is of the present invention and broadcasts address structure schematic diagram.
Fig. 4 is data address structural representation of the present invention.
Fig. 5 is data routing table list item structural representation of the present invention.
Fig. 6 is establishment route schematic flow sheet of the present invention.
Fig. 7 obtains data flow diagram in subnet of the present invention.
Fig. 8 is for obtaining data flow diagram in subnet when optimal data of the present invention provides node failure.
Fig. 9 obtains data flow diagram between subnet of the present invention.
Embodiment:
The invention provides a kind of implementation method of wireless communication, described wireless network can obtain network data by implementation method provided by the present invention, keep the continuity communicated simultaneously, shorten data acquisition cost and delay, the present invention can be applicable to the fields such as road conditions monitoring, vehicle management, is with a wide range of applications.
Fig. 1 is wireless network architecture schematic diagram of the present invention.Described wireless network is divided into plural subnet 1, and each subnet 1 comprises a couple in router 2 and plural mobile node, and subnet 1 is connected with the Internet by couple in router 2;
Three category nodes are comprised: data provide node 3 in described subnet, data consumption node 4 and ordinary node 5, wherein data provide node 3 to provide a kind of specific type of data (such as having permission, film) mobile node, data consumption node 4 consumes a kind of mobile node of specific type of data for having permission, ordinary node 5 is for neither data provide node neither the mobile node of data consumption node, for performing route forwarding function;
Described wireless network comprise the data of a kind of particular type of unique identification appoint broadcast address, all having permission provides the data of this kind of specific type of data to provide node 3 to form an anycast group, this anycast group by appoint broadcast address unique identification, be mark this kind of specific type of data appoint broadcast address; Node in anycast group is called anycast group member;
All data consumption nodes 4 consuming a kind of specific type of data that has permission form a multicast group, and this multicast group is by a multicast address unique identification; Node in multicast group is called multicast members.
Fig. 2 is unicast address structural representation of the present invention.The unicast address of a mobile node is used for overall route, be made up of two parts: Part I is network prefix, length is 128-i bit, such as, i can be set to 64 bits, network prefix unique identification subnet, the network prefix of the unicast address of all mobile nodes in a subnet is all identical, and its value equals the network prefix of the couple in router in same subnet; Part II is node ID, and length is i bit, and this node ID has uniqueness in subnet, unique identification mobile node; The allocation space of node ID is [1,2
j], j<i.
Fig. 3 is of the present invention and broadcasts address structure schematic diagram.Appoint for one and broadcast address and be made up of two parts: network prefix and appoint and broadcast ID, the length of network prefix is 128-i bit, appoints the length broadcasting ID to be i bit, appoints to broadcast address and have network uniqueness; The allocation space broadcasting ID is appointed to be [2
j+ 1,2
i-1].A Data Placement K part for particular type, being labeled as of a kth partial content: appoint and broadcast address k; K belongs to 1 ~ K; Such as, a TV play has K collection, and a kth partial content identifies the kth collection of a TV play.
Fig. 4 is data address structural representation of the present invention.A data address, for obtaining a kind of data of particular type, comprises three parts: Part I is the node ID in unicast address, Part II be appoint broadcast in address appoint broadcast ID, Part III be part gather, its value is the value of the part of institute's request msg; Part set can be 1,2 equivalences, if this value is 0, then illustrates that the data of request are complete data, such as entire TV series.
Fig. 5 is data routing table list item structural representation of the present invention.A multicast members preserves a data routing table, provides appointing of these multicast group data to broadcast information about firms for recording; The information of a data route table items record anycast group member, a data route table items is divided into four territories: unicast address territory, appoint and broadcast address field, part territory and distance domain, wherein unicast address territory is the unicast address of anycast group member, appoint broadcast address thresholding for multicast group have the right obtain data type corresponding to appoint broadcast address, the corresponding part number of part thresholding identification data, such as, the 1st collection of TV series can be expressed as when part thresholding is 1; Distance domain represents the jumping figure of multicast members's distance anycast group member; A subnet comprises more than one multicast group, and it is the group membership of each multicast group in this subnet that the couple in router of this subnet is defaulted as.
Said process constructs the basic architecture of Network Capture data, and by above-mentioned network architecture, data consumption node can provide node to obtain data from nearest data, thus significantly reduces cost and the delay of data acquisition.
Fig. 6 is establishment route schematic flow sheet of the present invention.The group membership of broadcasting P1 in office appoints that to broadcast address be A1, and multicast address is that the multicast members of M1 is when having permission the data obtaining multicast address A1 definition; Anycast group member P1 proceeds as follows after creating a kth partial data of appointing and broadcasting address A1 definition:
Step 101: start;
Step 102: anycast group member P1 sends a data sharing message, the destination address of data sharing message is multicast address M1, and source address is the unicast address of anycast group member P1, and the load of data sharing message is that k broadcasts address A1 with appointing;
Step 103: multicast address is after the multicast members of M1 receives data sharing message, a list item is increased in the data routing table of oneself, the unicast address territory of list item is the unicast address of anycast group member P1, appoint that to broadcast address field be A1, part thresholding is k, and distance domain is the distance of this multicast members and anycast group member P1;
Step 104: terminate.
Said process constructs the data routing table arriving anycast group member, and by above-mentioned data routing table, data consumption node can provide node to obtain data from nearest data, thus significantly reduces cost and the delay of data acquisition.
Fig. 7 obtains data flow diagram in subnet of the present invention.When the multicast members that multicast address is M1 has permission the data obtaining and appoint and broadcast address A1 mark, if multicast members C3 is positioned at subnet N1, and appoint the network prefix broadcasting address A1 to be under the jurisdiction of N1, multicast address is that the multicast members C3 of M1 will obtain the kth partial data of appointing and broadcasting address A1 and identifying, then perform following process:
Step 201: start;
Step 202: multicast members C3 checks oneself data routing table, chosen distance oneself recently and can provide the anycast group member P2 appointing and broadcast the kth partial data that address A1 identifies, build a data address, the node ID of data address is the node ID of anycast group member P2, appoint broadcast ID be appoint broadcast address A1 corresponding appoint broadcast ID, part rendezvous value is k; Multicast members C3 sends data request information to anycast group member P2, and the destination address of data request information is data address, and the source address of data request information is the unicast address of multicast members C3;
Step 203: the data request information that the node receiving data request information is divided into three kinds of situation process to receive:
Situation 1: if the node receiving data request information is the multicast members of multicast address M1 and has the kth partial data of appointing and broadcasting address A1 and identifying, the node so receiving data request information returns a data response message and stops forwarding the data request information received, the source address of data response message is the unicast address of the node oneself receiving data request information, destination address is the unicast address of multicast members C3, the load of data response message is appoint the kth partial data broadcast address A1 and identify, and carry out step 205;
Situation 2: if the node receiving data request information is anycast group member P2, carry out step 204;
Situation 3: if situation 1 and situation 2 all do not meet, then data request information is forwarded to down hop by the node receiving data request information, carry out step 203;
Step 204: anycast group member P2 returns a data response message to multicast members C3, the source address of data response message is the unicast address of anycast group member P2, destination address is the unicast address of multicast members C3, and load is appoint the kth partial data broadcast address A1 and identify;
Step 205: if the node receiving data response message is the multicast members in multicast address M1, and this multicast members also wants to obtain the kth partial data of appointing and broadcasting address A1 and identifying simultaneously, so this multicast members directly preserves the kth partial data that appointing in data response message broadcast address A1 and identify, and final data response message arrives multicast members C3;
Step 206: terminate.
By said process, data consumption node can provide node to obtain data at local network from nearest data, thus significantly reduces cost and the delay of data acquisition.
Fig. 8 is for obtaining data flow diagram in subnet when optimal data of the present invention provides node failure.Multicast address is that the multicast members of M1 has permission the data obtaining and appoint and broadcast address A1 and identify, multicast members C3 is positioned at subnet N1, couple in router in subnet N1 is AR1, the network prefix broadcasting address A1 is appointed to be under the jurisdiction of N1, multicast address is that the multicast members C3 of M1 obtains the kth partial data of appointing and broadcasting address A1 and identifying from anycast group member P2, after multicast members C3 sends to the data request information of anycast group member P2 to reach the previous dive node E1 of anycast group member P2, if previous dive node E1 detects that anycast group member P2 is unreachable, so multicast members C3 appoints from crossing following Procedure Acquisition the kth partial data broadcast address A1 and identify:
Step 301: start;
Step 302: the node ID in the destination address of the data request information received is revised as the node ID of couple in router AR1 by previous dive node E1, then sends data request information;
Step 303: the data request information that the node receiving data request information is divided into three kinds of situation process to receive:
Situation 1: if the node receiving data request information is the multicast members of multicast address M1 and has the kth partial data of appointing and broadcasting address A1 and identifying, the node so receiving data request information returns a data response message and stops forwarding the data request information received, the source address of data response message is the unicast address of the node oneself receiving data request information, destination address is the unicast address of multicast members C3, load is appoint the kth partial data broadcast address A1 and identify, and carry out step 307;
Situation 2: if the node receiving data request information is couple in router AR1, carry out step 304;
Situation 3: if situation 1 and situation 2 all do not meet, then data request information is forwarded to down hop by the node receiving data request information, carry out step 303;
Step 304: couple in router AR1 chosen distance oneself recently and can provide the anycast group member P3 appointing and broadcast the kth partial data that address A1 identifies, the node ID of the destination address of the data request information received is updated to the node ID of anycast group member P3, then sends this data request information;
Step 305: the data request information that the node receiving data request information is divided into three kinds of situation process to receive:
Situation 1: if the node receiving data request information is the multicast members of multicast address M1 and has the kth partial data of appointing and broadcasting address A1 and identifying, the node so receiving data request information returns a data response message and stops forwarding the data request information received, the source address of data response message is the unicast address of the node receiving data request information, destination address is the unicast address of multicast members C3, load is appoint the kth partial data broadcast address A1 and identify, and carry out step 307;
Situation 2: if the node receiving data request information is anycast group member P3, then carry out step 306;
Situation 3: if situation 1 and situation 2 all do not meet, then data request information is forwarded to down hop by the node receiving data request information, carry out step 305;
Step 306: anycast group member P3 returns a data response message to multicast members C3, the source address of data response message is its unicast address, and destination address is the unicast address of multicast members C3, and load is appoint the kth partial data broadcast address A1 and identify;
Step 307: if also want the while that the node receiving data response message being the multicast members in multicast address M1 to obtain the kth partial data of appointing and broadcasting address A1 and identifying, the node so receiving data response message directly preserves the kth partial data that appointing in data response message broadcast address A1 and identify, and final data response message arrives multicast members C3;
Step 308: terminate.
If data consumption node cannot obtain data from providing apart from up-to-date data node, so it can provide node to obtain data from other data of local network, thus has increased considerably the success rate obtaining data.
Fig. 9 obtains data flow diagram between subnet of the present invention.Multicast address is that the multicast members of M1 has permission the data obtaining and appoint and broadcast address A1 and identify, if multicast members C3 is positioned at subnet N1, the couple in router of subnet N1 is AR1, the network prefix broadcasting address A2 is appointed to be under the jurisdiction of N2, if the multicast members C3 that multicast address is M1 will obtain the kth partial data of appointing and broadcasting address A2 and identifying, so first multicast members C3 checks data routing table, broadcast ID be A2 and part thresholding is the list item of k if exist to appoint, so multicast members C3 performs step 201 and obtains the kth partial data of appointing and broadcasting address A2 and identifying to step 205, otherwise multicast members C3 performs following Procedure Acquisition data:
Step 401: start;
Step 402: multicast members C3 sends teledata request message, the destination address of teledata request message broadcasts address A2 for appointing, and source address is the unicast address of multicast members C3, and load is k;
Step 403: the teledata request message that the node receiving data request information is divided into three kinds of situation process to receive:
Situation 1: if the node receiving teledata request message is the multicast members of multicast address M1 and has the kth partial data of appointing and broadcasting address A2 and identifying, the node so receiving teledata request message returns a teledata response message and stops forwarding the teledata request message received, the source address of teledata response message is its unicast address, destination address is the unicast address of multicast members C3, load is appoint the kth partial data broadcast address A2 and identify, and carry out step 410;
Situation 2: if the node receiving teledata request message is couple in router AR1, carry out step 404;
Situation 3: if situation 1 and situation 2 all do not meet, then teledata request message is forwarded to down hop by the node receiving teledata request message, carry out step 403;
Step 404: the teledata request message received is sent to the Internet by couple in router AR1, finally, teledata request message arrives couple in router AR2;
Step 405: couple in router AR2 checks oneself data routing table, chosen distance oneself recently and can provide the anycast group member P3 appointing and broadcast the kth partial data that address A2 identifies, couple in router AR2 builds a data address, the node ID of data address is the node ID of anycast group member P3, appoint broadcast ID be appoint broadcast address A2 appoint broadcast ID, part rendezvous value is k, couple in router AR2 sends data request information to anycast group member P3, the destination address of data request information is data address, and source address is the unicast address of couple in router AR2;
Step 406: the data request information that the node receiving data request information is divided into three kinds of situation process to receive:
Situation 1: if the node receiving data request information is the multicast members of multicast address M1 and has the kth partial data of appointing and broadcasting address A2 and identifying, the node so receiving data request information returns a data response message and stops forwarding the data request information received, the source address of data response message is its unicast address, destination address is the unicast address of couple in router AR2, load is appoint the kth partial data broadcast address A2 and identify, and carry out step 408;
Situation 2: if the node receiving data request information is anycast group member P3, carry out step 407;
Situation 3: if situation 1 and situation 2 all do not meet, then data request information is forwarded to down hop by the node receiving data request information, carry out step 406;
Step 407: anycast group member P3 returns a data response message to couple in router AR2, the source address of data response message is its unicast address, destination address is the unicast address of couple in router AR2, and load is appoint the kth partial data broadcast address A2 and identify;
Step 408: if the node receiving data response message is the multicast members in multicast address M1, this multicast members also wants to obtain the kth partial data of appointing and broadcasting address A2 and identifying simultaneously, so this multicast members directly preserves the kth partial data that appointing in data response message broadcast address A2 and identify, and final data response message arrives couple in router AR2;
Step 409: couple in router AR2 returns a teledata response message, the destination address of teledata response message is the unicast address of multicast members C3, and load is appoint the kth partial data broadcast address A2 and identify;
Step 410: if the node receiving teledata response message is the multicast members in multicast address M1, this multicast members also wants to obtain the kth partial data of appointing and broadcasting address A2 and identifying simultaneously, so this multicast members directly preserves the kth partial data that appointing in data response message broadcast address A2 and identify, and final teledata response message arrives multicast members C3;
Step 411: terminate.
If data consumption node cannot obtain data from local network, so it can provide node Remote Acquisitioning data by the data of other networks, thus has increased considerably the success rate obtaining data.
Each anycast group member regularly sends updating message to the couple in router of place network, and the source address of updating message is the unicast address of anycast group member, and what load was place anycast group appoints the data portion score value k broadcasting address and can provide;
If in the given time, such as 10 minutes, couple in router does not receive the updating message of anycast group member, then list item corresponding for this anycast group member is deleted from data routing table, then couple in router obtains this multicast members broadcasting the data that address defines and sends a deletion message to having the right, the destination address deleting message is the multicast address of multicast group, and load is the unicast address of this anycast group member; Multicast members checks the data routing table of oneself after receiving and deleting message, deletes the route table items that unicast address thresholding equals the unicast address deleted in message;
Anycast group member appoints that to broadcast address be A1, after anycast group member moves to a new subnet, couple in router to new subnet sends updating message, the couple in router receiving updating message increases the list item of this anycast group member in the data routing table of oneself, obtain to having the right simultaneously and appoint the multicast members broadcasting the data that address A1 defines to send an increase message, the destination address increasing message is the multicast address of this multicast group, load is the unicast address of this anycast group member, appoints the data portion score value k broadcasting address and can provide; Multicast members increases the route table items of this anycast group member after receiving and increasing message in data routing table.
Said process ensure that the correctness of data routing table, even if data provide node from a Network Mobility to another one network, data consumption node is appointed and so can be searched nearest data by data routing table and provide node, thus provide node to obtain data from nearest data, thus increased considerably the success rate obtaining data, also reduce the cost and delay that obtain data.
Embodiment 1
Based on the simulation parameter of table 1, the present embodiment simulates the wireless network implementation method in the present invention, performance evaluation is as follows: when data provide node to increase, the cost and the delay that obtain data decrease, when data provide number of nodes to be 10 time, the cost obtaining data is 12, postpones for 100ms.When data provide the average distance of node and data consumption node to increase, obtain the cost of data and postpone to increase thereupon, when data provide the average distance of node and data consumption node to be 3 jumpings, the cost obtaining data is 12, postpones for 80ms.
Table 1 simulation parameter
The invention provides a kind of thinking of implementation method of wireless communication; the method and access of this technical scheme of specific implementation is a lot; the above is only the preferred embodiment of the present invention; should be understood that; for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.The all available prior art of each component part not clear and definite in the present embodiment is realized.
Claims (6)
1. an implementation method for wireless communication, is characterized in that, described wireless network is divided into plural subnet, and each subnet comprises a couple in router and plural mobile node, and subnet is connected with the Internet by couple in router;
Three category nodes are comprised: data provide node in described subnet, data consumption node and ordinary node, wherein data provide node for having permission the mobile node providing a kind of specific type of data, data consumption node is have permission the mobile node consuming a kind of specific type of data, ordinary node is for neither data provide node neither the mobile node of data consumption node, for performing route forwarding function;
Described wireless network comprise the data of a kind of particular type of unique identification appoint broadcast address, all having permission provides the data of this kind of specific type of data to provide node to form an anycast group, this anycast group by appoint broadcast address unique identification, be mark this kind of specific type of data appoint broadcast address; Node in anycast group is called anycast group member;
All data consumption nodes consuming a kind of specific type of data that has permission form a multicast group, and this multicast group is by a multicast address unique identification; Node in multicast group is called multicast members;
The unicast address of a mobile node is used for overall route, be made up of two parts: Part I is network prefix, length is 128-i bit, network prefix unique identification subnet, the network prefix of the unicast address of all mobile nodes in a subnet is all identical, and its value equals the network prefix of the couple in router in same subnet; Part II is node ID, and length is i bit, and this node ID has uniqueness in subnet, unique identification mobile node; The allocation space of node ID is [1,2
j], j<i;
Appoint for one and broadcast address and be made up of two parts: network prefix and appoint and broadcast ID, the length of network prefix is 128-i bit, appoints the length broadcasting ID to be i bit, appoints to broadcast address and have network uniqueness; The allocation space broadcasting ID is appointed to be [2
j+ 1,2
i-1];
A Data Placement K part for particular type, being labeled as of a kth partial content: appoint and broadcast address k; K belongs to 1 ~ K;
A data address, for obtaining a kind of data of particular type, comprises three parts: Part I is the node ID in unicast address, Part II be appoint broadcast in address appoint broadcast ID, Part III be part gather, its value is the value of the part of institute's request msg;
A multicast members preserves a data routing table, provides appointing of these multicast group data to broadcast information about firms for recording; The information of a data route table items record anycast group member, a data route table items is divided into four territories: unicast address territory, appoint and broadcast address field, part territory and distance domain, wherein unicast address territory is the unicast address of anycast group member, appoint and broadcast appointing corresponding to type that address thresholding has the right to obtain data for multicast group and broadcast address, the corresponding part number of part thresholding identification data, distance domain represents the jumping figure of multicast members's distance anycast group member; A subnet comprises more than one multicast group, and it is the group membership of each multicast group in this subnet that the couple in router of this subnet is defaulted as.
2. the implementation method of a kind of wireless communication according to claim 1, is characterized in that, the group membership of broadcasting P1 in office appoints that to broadcast address be A1, and multicast address is that the multicast members of M1 is when having permission the data obtaining multicast address A1 definition; Anycast group member P1 proceeds as follows after creating a kth partial data of appointing and broadcasting address A1 definition:
Step 101: start;
Step 102: anycast group member P1 sends a data sharing message, the destination address of data sharing message is multicast address M1, and source address is the unicast address of anycast group member P1, and the load of data sharing message is that k broadcasts address A1 with appointing;
Step 103: multicast address is after the multicast members of M1 receives data sharing message, a list item is increased in the data routing table of oneself, the unicast address territory of list item is the unicast address of anycast group member P1, appoint that to broadcast address field be A1, part thresholding is k, and distance domain is the distance of this multicast members and anycast group member P1;
Step 104: terminate.
3. the implementation method of a kind of wireless communication according to claim 1, it is characterized in that, when the multicast members that multicast address is M1 has permission the data obtaining and appoint and broadcast address A1 mark, if multicast members C3 is positioned at subnet N1, and appoint the network prefix broadcasting address A1 to be under the jurisdiction of N1, multicast address is that the multicast members C3 of M1 will obtain the kth partial data of appointing and broadcasting address A1 and identifying, then perform following process:
Step 201: start;
Step 202: multicast members C3 checks oneself data routing table, chosen distance oneself recently and can provide the anycast group member P2 appointing and broadcast the kth partial data that address A1 identifies, build a data address, the node ID of data address is the node ID of anycast group member P2, appoint broadcast ID be appoint broadcast address A1 corresponding appoint broadcast ID, part rendezvous value is k; Multicast members C3 sends data request information to anycast group member P2, and the destination address of data request information is data address, and the source address of data request information is the unicast address of multicast members C3;
Step 203: the data request information that the node receiving data request information is divided into three kinds of situation process to receive:
Situation 1: if the node receiving data request information is the multicast members of multicast address M1 and has the kth partial data of appointing and broadcasting address A1 and identifying, the node so receiving data request information returns a data response message and stops forwarding the data request information received, the source address of data response message is the unicast address of the node oneself receiving data request information, destination address is the unicast address of multicast members C3, the load of data response message is appoint the kth partial data broadcast address A1 and identify, and carry out step 205;
Situation 2: if the node receiving data request information is anycast group member P2, carry out step 204;
Situation 3: if situation 1 and situation 2 all do not meet, then data request information is forwarded to down hop by the node receiving data request information, carry out step 203;
Step 204: anycast group member P2 returns a data response message to multicast members C3, the source address of data response message is the unicast address of anycast group member P2, destination address is the unicast address of multicast members C3, and load is appoint the kth partial data broadcast address A1 and identify;
Step 205: if the node receiving data response message is the multicast members in multicast address M1, and this multicast members also wants to obtain the kth partial data of appointing and broadcasting address A1 and identifying simultaneously, so this multicast members directly preserves the kth partial data that appointing in data response message broadcast address A1 and identify, and final data response message arrives multicast members C3;
Step 206: terminate.
4. the implementation method of a kind of wireless communication according to claim 3, it is characterized in that, multicast address is that the multicast members of M1 has permission the data obtaining and appoint and broadcast address A1 and identify, multicast members C3 is positioned at subnet N1, couple in router in subnet N1 is AR1, the network prefix broadcasting address A1 is appointed to be under the jurisdiction of N1, multicast address is that the multicast members C3 of M1 obtains the kth partial data of appointing and broadcasting address A1 and identifying from anycast group member P2, after multicast members C3 sends to the data request information of anycast group member P2 to reach the previous dive node E1 of anycast group member P2, if previous dive node E1 detects that anycast group member P2 is unreachable, so multicast members C3 appoints from crossing following Procedure Acquisition the kth partial data broadcast address A1 and identify:
Step 301: start;
Step 302: the node ID in the destination address of the data request information received is revised as the node ID of couple in router AR1 by previous dive node E1, then sends data request information;
Step 303: the data request information that the node receiving data request information is divided into three kinds of situation process to receive:
Situation 1: if the node receiving data request information is the multicast members of multicast address M1 and has the kth partial data of appointing and broadcasting address A1 and identifying, the node so receiving data request information returns a data response message and stops forwarding the data request information received, the source address of data response message is the unicast address of the node oneself receiving data request information, destination address is the unicast address of multicast members C3, load is appoint the kth partial data broadcast address A1 and identify, and carry out step 307;
Situation 2: if the node receiving data request information is couple in router AR1, carry out step 304;
Situation 3: if situation 1 and situation 2 all do not meet, then data request information is forwarded to down hop by the node receiving data request information, carry out step 303;
Step 304: couple in router AR1 chosen distance oneself recently and can provide the anycast group member P3 appointing and broadcast the kth partial data that address A1 identifies, the node ID of the destination address of the data request information received is updated to the node ID of anycast group member P3, then sends this data request information;
Step 305: the data request information that the node receiving data request information is divided into three kinds of situation process to receive:
Situation 1: if the node receiving data request information is the multicast members of multicast address M1 and has the kth partial data of appointing and broadcasting address A1 and identifying, the node so receiving data request information returns a data response message and stops forwarding the data request information received, the source address of data response message is the unicast address of the node receiving data request information, destination address is the unicast address of multicast members C3, load is appoint the kth partial data broadcast address A1 and identify, and carry out step 307;
Situation 2: if the node receiving data request information is anycast group member P3, then carry out step 306;
Situation 3: if situation 1 and situation 2 all do not meet, then data request information is forwarded to down hop by the node receiving data request information, carry out step 305;
Step 306: anycast group member P3 returns a data response message to multicast members C3, the source address of data response message is its unicast address, and destination address is the unicast address of multicast members C3, and load is appoint the kth partial data broadcast address A1 and identify;
Step 307: if also want the while that the node receiving data response message being the multicast members in multicast address M1 to obtain the kth partial data of appointing and broadcasting address A1 and identifying, the node so receiving data response message directly preserves the kth partial data that appointing in data response message broadcast address A1 and identify, and final data response message arrives multicast members C3;
Step 308: terminate.
5. the implementation method of a kind of wireless communication according to claim 3, it is characterized in that, multicast address is that the multicast members of M1 has permission the data obtaining and appoint and broadcast address A1 and identify, if multicast members C3 is positioned at subnet N1, the couple in router of subnet N1 is AR1, the network prefix broadcasting address A2 is appointed to be under the jurisdiction of N2, if the multicast members C3 that multicast address is M1 will obtain the kth partial data of appointing and broadcasting address A2 and identifying, so first multicast members C3 checks data routing table, broadcast ID be A2 and part thresholding is the list item of k if exist to appoint, so multicast members C3 performs step 201 and obtains the kth partial data of appointing and broadcasting address A2 and identifying to step 205, otherwise multicast members C3 performs following Procedure Acquisition data:
Step 401: start;
Step 402: multicast members C3 sends teledata request message, the destination address of teledata request message broadcasts address A2 for appointing, and source address is the unicast address of multicast members C3, and load is k;
Step 403: the teledata request message that the node receiving data request information is divided into three kinds of situation process to receive:
Situation 1: if the node receiving teledata request message is the multicast members of multicast address M1 and has the kth partial data of appointing and broadcasting address A2 and identifying, the node so receiving teledata request message returns a teledata response message and stops forwarding the teledata request message received, the source address of teledata response message is its unicast address, destination address is the unicast address of multicast members C3, load is appoint the kth partial data broadcast address A2 and identify, and carry out step 410;
Situation 2: if the node receiving teledata request message is couple in router AR1, carry out step 404;
Situation 3: if situation 1 and situation 2 all do not meet, then teledata request message is forwarded to down hop by the node receiving teledata request message, carry out step 403;
Step 404: the teledata request message received is sent to the Internet by couple in router AR1, finally, teledata request message arrives couple in router AR2;
Step 405: couple in router AR2 checks oneself data routing table, chosen distance oneself recently and can provide the anycast group member P3 appointing and broadcast the kth partial data that address A2 identifies, couple in router AR2 builds a data address, the node ID of data address is the node ID of anycast group member P3, appoint broadcast ID be appoint broadcast address A2 appoint broadcast ID, part rendezvous value is k, couple in router AR2 sends data request information to anycast group member P3, the destination address of data request information is data address, and source address is the unicast address of couple in router AR2;
Step 406: the data request information that the node receiving data request information is divided into three kinds of situation process to receive:
Situation 1: if the node receiving data request information is the multicast members of multicast address M1 and has the kth partial data of appointing and broadcasting address A2 and identifying, the node so receiving data request information returns a data response message and stops forwarding the data request information received, the source address of data response message is its unicast address, destination address is the unicast address of couple in router AR2, load is appoint the kth partial data broadcast address A2 and identify, and carry out step 408;
Situation 2: if the node receiving data request information is anycast group member P3, carry out step 407;
Situation 3: if situation 1 and situation 2 all do not meet, then data request information is forwarded to down hop by the node receiving data request information, carries out step: 406;
Step 407: anycast group member P3 returns a data response message to couple in router AR2, the source address of data response message is its unicast address, destination address is the unicast address of couple in router AR2, and load is appoint the kth partial data broadcast address A2 and identify;
Step 408: if the node receiving data response message is the multicast members in multicast address M1, this multicast members also wants to obtain the kth partial data of appointing and broadcasting address A2 and identifying simultaneously, so this multicast members directly preserves the kth partial data that appointing in data response message broadcast address A2 and identify, and final data response message arrives couple in router AR2;
Step 409: couple in router AR2 returns a teledata response message, the destination address of teledata response message is the unicast address of multicast members C3, and load is appoint the kth partial data broadcast address A2 and identify;
Step 410: if the node receiving teledata response message is the multicast members in multicast address M1, this multicast members also wants to obtain the kth partial data of appointing and broadcasting address A2 and identifying simultaneously, so this multicast members directly preserves the kth partial data that appointing in data response message broadcast address A2 and identify, and final teledata response message arrives multicast members C3;
Step 411: terminate.
6. the implementation method of a kind of wireless communication according to claim 5, it is characterized in that, each anycast group member regularly sends updating message to the couple in router of place network, the source address of updating message is the unicast address of anycast group member, and what load was place anycast group appoints the data portion score value k broadcasting address and can provide;
If in the given time, couple in router does not receive the updating message of anycast group member, then list item corresponding for this anycast group member is deleted from data routing table, then couple in router obtains this multicast members broadcasting the data that address defines and sends a deletion message to having the right, the destination address deleting message is the multicast address of multicast group, and load is the unicast address of this anycast group member; Multicast members checks the data routing table of oneself after receiving and deleting message, deletes the route table items that unicast address thresholding equals the unicast address deleted in message;
Anycast group member appoints that to broadcast address be A1, after anycast group member moves to a new subnet, couple in router to new subnet sends updating message, the couple in router receiving updating message increases the list item of this anycast group member in the data routing table of oneself, obtain to having the right simultaneously and appoint the multicast members broadcasting the data that address A1 defines to send an increase message, the destination address increasing message is the multicast address of this multicast group, load is the unicast address of this anycast group member, appoints the data portion score value k broadcasting address and can provide; Multicast members increases the route table items of this anycast group member after receiving and increasing message in data routing table.
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| WO2023155100A1 (en) * | 2022-02-17 | 2023-08-24 | Nokia Shanghai Bell Co., Ltd. | Method and apparatus for subnetwork configuration and procedures |
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