CN101702800A - Agent mobile communication system and method - Google Patents
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- CN101702800A CN101702800A CN200910238413A CN200910238413A CN101702800A CN 101702800 A CN101702800 A CN 101702800A CN 200910238413 A CN200910238413 A CN 200910238413A CN 200910238413 A CN200910238413 A CN 200910238413A CN 101702800 A CN101702800 A CN 101702800A
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Abstract
The invention provides an agent mobile communication system comprising a mobile access gateway and a local mobile anchor point connected by an IPv4 network or an IPv6 network, wherein the mobile access gateway is used for simultaneously initiating requests to the local mobile anchor point for the bonding update messages of IPv4 address and IPv6 home address prefixes after accessing a mobile node; establishing a one-way tunnel from the mobile access gateway to the local mobile anchor point; and configuring the IPv4 address and IPv6 home address prefixes acquired from the local mobile anchor point to the accessed mobile node, wherein the local mobile anchor point is used for simultaneously assigning and configuring the IPv4 address and IPv6 home address prefixes for the mobile node accessed to the mobile access gateway, sending the addresses to the mobile access gateway by bonding response messages and establishing a one-way tunnel from the local mobile anchor point to the mobile access gateway.
Description
Technical field
The present invention relates to moving communicating field, relate in particular to a kind of agent mobile communication system and method.
Background technology
In next generation mobile Internet, because the overall situation moves the various drawbacks bring (for example signaling consumption big, need to revise main frame etc.), the internet engineering task group IETF of International Standards Organization has passed through RFC5213: based on network regional proxy mobile IPv 6 (PMIPv6).In the PMIPv6 definition, use the network area of a mobile node mobile management of PMIPv6 protocol processes behavior to be called as Proxy Mobile IPv6Domain (hereinafter to be referred as the PMIPv6 territory).In this territory, the functional entity of core be local mobile anchor (Local Mobility Anchor, LMA) and Mobile Access Gateway (Mobile Access Gateway, MAG).LMA is responsible for keeping mobile node addressable, still is the supplier of moving nodes local network prefix simultaneously.On behalf of mobile node, MAG carry out mobile management, and it is positioned at the position that mobile node inserts, be responsible for detection node move and and LMA between Signalling exchanges such as binding registration.
Yet PMIPv6 is based on IPv6, and can not accomplish in one move the situation that will have IPv4 and IPv6 and deposit in a very long time from IPv4 to the process of IPv6 development.Consider this realistic situation, need to exist the node that can support IPv4 and IPv6 simultaneously in mobile Internet, this class node is also referred to as two stack nodes.Do not have the two stack nodes that can realize that the mobile behavior to mobile node manages in the prior art, above-mentioned PMIPv6 only supports IPv6 network and IPv6 to use the present situation that can't be adapted to current IP v4, IPv6 and deposit.
Summary of the invention
The objective of the invention is to overcome existing system and method can not be supported the defective of IPv4 and IPv6 network simultaneously, thereby a kind of agent mobile communication system and method for supporting two stacks is provided.
To achieve these goals, the invention provides a kind of agent mobile communication system, comprise Mobile Access Gateway and local mobile anchor, connect by IPv4 network or IPv6 network between described Mobile Access Gateway and the local mobile anchor; Wherein,
Described Mobile Access Gateway is used for initiating to ask simultaneously to described local mobile anchor the binding update messages of IPv4 address and IPv6 home address prefix after inserting mobile node, set up the unidirectional tunnel of described Mobile Access Gateway, and will dispose to the mobile node that is inserted from IPv4 address and the IPv6 home address prefix that local mobile anchor obtains to described mobile anchor point;
Described local mobile anchor is used to mobile node distributing IP v4 address and the configuration of IPv6 home address prefix simultaneously that is linked into described Mobile Access Gateway, then above-mentioned address is sent to described Mobile Access Gateway by the binding response message, and set up the unidirectional tunnel of described local mobile anchor to described Mobile Access Gateway.
In the technique scheme, when passing through the connection of IPv6 type network between described Mobile Access Gateway and the local mobile anchor, described tunnel comprises IPv6in IPv6 tunnel and IPv4in IPv6 tunnel; Wherein,
Described IPv6in IPv6 tunnel comprises: the IPv6 packet for common, add one deck ipv6 header at skin, and the packet with two-layer ipv6 header for handling through IPv6in IPv6 tunnel removes outer header;
Described IPv4in IPv6 tunnel comprises: the IPv4 packet for common, add one deck ipv6 header at skin, and the packet that includes internal layer IPV4 header and outer ipv6 header for handling through IPv4in IPv6 tunnel removes outer header.
In the technique scheme, when passing through the connection of IPv4 type network between described Mobile Access Gateway and the local mobile anchor, described tunnel comprises IPv6in IPv4 tunnel and IPv4in IPv4 tunnel; Wherein,
Described IPv6in IPv4 tunnel: the IPv6 packet for common, add one deck IPV4 header at skin, the packet that includes internal layer ipv6 header and outer IPV4 header for handling through IPv6in IPv4 tunnel removes outer header;
Described IPv4in IPv64 tunnel comprises: the IPv4 packet for common, add one deck IPV4 header at skin, and the packet that includes two-layer IPV4 header for handling through IPv4in IPv4 tunnel removes outer header.
In the technique scheme, comprise the banding cache clauses and subclauses on the described local mobile anchor, the IPv4 address and IPv6 home address prefix, the address of Mobile Access Gateway and the call number in the tunnel of setting up that comprise mobile node identifier, life cycle in the described banding cache clauses and subclauses, distribute for mobile node.
In the technique scheme, comprise the Binding Update clauses and subclauses on the described Mobile Access Gateway, described Binding Update clauses and subclauses comprise IPv4 address and IPv6 home address prefix, the address of local mobile anchor and the call number in the tunnel of setting up of mobile node identifier, mobile node.
The present invention also provides a kind of method that realizes mobile communication in described agent mobile communication system, comprising:
After step 1), Mobile Access Gateway detect the access of mobile node, type according to the access the Internet sends corresponding binding update messages to local mobile anchor, to distribute to the IPv4 address and the IPv6 home address prefix of described mobile node to described local mobile anchor request;
Step 2), described local mobile anchor sends the binding response message to described Mobile Access Gateway, and sets up the unidirectional tunnel from described local mobile anchor to described Mobile Access Gateway; Described binding response message comprises promising described mobile node distributing IP v4 address and IPv6 home address prefix;
Step 3), described Mobile Access Gateway are set up the unidirectional tunnel from described Mobile Access Gateway to described local mobile anchor, and described IPv4 address and the IPv6 home address prefix of distributing to described mobile node is transferred to described mobile node;
Step 4), described mobile node dispose described IPv4 address and described IPv6 home address prefix, and according to moving the address that the type selecting used adapts on the node;
Realize data communication by the bidirectional tunnel between Mobile Access Gateway, Mobile Access Gateway and local mobile anchor, local mobile anchor between step 5), described mobile node and opposite end communication node, in communication process, described tunnel is that before packet is by tunnel transmission this packet adds the header that is complementary with the Internet, and described tunnel is the outer header removal of adding with packet before described data packet transmission goes out the tunnel.
In the technique scheme, described step 2) comprising:
Step 2-1), after local mobile anchor receives binding update messages from Mobile Access Gateway, check the banding cache clauses and subclauses of self whether preserving the mobile node relevant,, carry out next step if do not exist with this binding update messages, if have execution in step 2-3);
Step 2-2), local mobile anchor is described mobile node distributing IP v4 address and IPv6 home address prefix, the unidirectional tunnel of foundation from described local mobile anchor to described Mobile Access Gateway, and on described local mobile anchor, preserve the banding cache clauses and subclauses relevant, execution in step 2-4 then) with described mobile node;
IPv4 address and IPv6 home address prefix, the address of Mobile Access Gateway and the call number in the tunnel of setting up that described banding cache clauses and subclauses comprise the identifier, life cycle of mobile node, distribute for mobile node;
Step 2-3), local mobile anchor reads as IPv4 address and the IPv6 home address prefix that described mobile node has distributed from the banding cache clauses and subclauses, the unidirectional tunnel of foundation from described local mobile anchor to described Mobile Access Gateway, and the call number in tunnel write in the relevant option of described banding cache clauses and subclauses;
Step 2-4), described IPv4 address and IPv6 home address prefix write the binding response message after, this message is sent to Mobile Access Gateway.
In the technique scheme, described step 3) comprises:
Step 3-1), the unidirectional tunnel of foundation from described Mobile Access Gateway to described local mobile anchor;
Step 3-2), read out IPv4 address and the IPv6 home address prefix of distributing to mobile node by local mobile anchor the response message, create the IPv4 address and IPv6 home address prefix, the IPv6 address of local mobile anchor and the Binding Update clauses and subclauses of tunnel call number information that comprise mobile node identifier, mobile node from binding;
Step 3-3), send the DHCP response message that includes the advertising of route message of IPv6 home address prefix and include the IPv4 address to mobile node.
In the technique scheme, in described step 1), the Internet that is inserted is an IPv6 type network, adds the v4 home address option HoAv4 of mobile node on the PBU message basis of described binding update messages in PMIPv6, and changes the type of message.
In the technique scheme, in described step 1), the Internet that is inserted is an IPv4 type network, adds the v4 home address option HoAv4 of mobile node on the PBU message basis of described binding update messages in PMIPv6, change ipv6 header into IPV4 header, and change the type of message.
In the technique scheme, in described step 2) in, the Internet that is inserted is an IPv6 type network, adds the v4 home address option HoAv4 of mobile node on the PBA message basis of described binding response message in PMIPv6, fills in the IPv4 address that promising mobile node distributes in this option.
In the technique scheme, in described step 2) in, the Internet that is inserted is an IPv4 type network, add the v4 home address option HoAv4 of mobile node on the PBA message basis of described binding response message in PMIPv6, fill in the IPv4 address that promising mobile node distributes in this option, change ipv6 header into IPV4 header, and change the type of message.
The invention has the advantages that:
The present invention can support IPv6 network and IPv4 network simultaneously, can adapt to mobile Internet IPv6 network and the network coexisted present situation of IPv4 in the quite a long time.
Description of drawings
The mobile node that Fig. 1 uses for operation IPv4 inserts the schematic diagram of IPv6 network;
Fig. 2 inserts the flow chart of realizing address assignment behind the Mobile Access Gateway for mobile node;
Fig. 3 is that the form of DSPBUv6 and PBU compares schematic diagram;
Fig. 4 is that the form of DSPBAv6 and PBA compares schematic diagram;
Fig. 5 is MN sends a flow process from packet to CN;
Fig. 6 is CN sends a flow process from packet to MN.
Embodiment
The present invention will be further described below in conjunction with the drawings and specific embodiments.
In view of having only among the IPv6 PMIPv6 that exists the mobile behavior to mobile node to manage in the prior art, and in IPv4, there is not corresponding protocol, therefore, in the present invention will be based on existing P MIPv6, related content in the agreement is improved, thereby supported IPv4 and IPv6 simultaneously.
Similar with PMIPv6, include Mobile Access Gateway and local mobile anchor among the present invention equally.The function of being mentioned in background technology, Mobile Access Gateway also has the type, the expansion binding update messages DSPBUv6 that judge access network, set up the tunnel and loaded IPv6 packet header or remove the outer field IPv6 of packet packet header, IPv4 and IPv6 address are disposed function to mobile node (MN) simultaneously in that packet is outer by described tunnel.The function of being mentioned in background technology, local mobile anchor also has the type, the expansion binding response message DSPBAv6 that judge access network, set up the tunnel and loaded IPv6 packet header or remove the outer field IPv6 of packet packet header, functions such as distributing IP v4 and IPv6 address simultaneously in that packet is outer by described tunnel.For with PMIPv6 in Mobile Access Gateway and local mobile anchor distinguish mutually, the Mobile Access Gateway among the present invention is represented with DSMAG, the local mobile anchor among the present invention is represented with DSLMA.Below in conjunction with concrete example how above-mentioned DSMAG, DSLMA are realized that the mobile management of mobile node is illustrated.
Under the situation of IPv4 and IPv6 coexistence, the network that DSMAG inserted may be the IPv6 net, also may be the IPv4 net, also may be the network of IPv4 and IPv6 coexistence.In addition, the type that runs on the application on the mobile node may be the IPv4 type, also may be the IPv6 type.Below the branch situation the present invention is illustrated.
Fig. 1 shows a kind of application example, and in this example, mobile node is connected in the internet by DSMAG, and connects through the opposite end communication node (CN) of DSLMA and far-end.All move the application of IPv4 type on this mobile node and the opposite end communication node, so should carry out IPv4 between mobile node and the opposite end communication node and communicate by letter, but the network that DSMAG inserted is the IPv6 network.Obviously, existing P MIPv6 can't realize communicating by letter between mobile node and opposite end communication node, then can address this problem in the present invention.
With reference to figure 2, when the mobile node shown in Fig. 1 inserts DSMAG, ask DSMAG to DSMAG transmission RS (route request information) and DHCP.After DSMAG perceives the access of mobile node, send life cycle (lifetime) greater than 0 binding update messages DSPBUv6 to DSLMA.Expand on the PBU message basis of this binding update messages DSPBUv6 in PMIPv6.Provided the data format of PBU message and DSPBUv6 message in Fig. 3, therefrom as can be seen, DSPBUv6 has increased the v4 home address option HoAv4 of mobile node in mobile option, and the value of this option is 0.In addition, the mobile node identifier MNID from this message it can also be seen which mobile node has inserted DSMAG.
After DSLMA receives binding update messages DSPBUv6 from DSMAG, need to understand whether the mobile node relevant with this binding update messages be the territory of inserting the DSMAG place first.Because after mobile node inserts DSMAG, therefore all can preserve the banding cache clauses and subclauses of this mobile node on DSLMA, the judgement whether mobile node is inserted territory, DSMAG place first can convert the judgement whether the banding cache clauses and subclauses to this mobile node exist to.Whether exist according to the banding cache clauses and subclauses, DSLMA has different subsequent operations.
When the banding cache clauses and subclauses did not exist, DSLMA set up the unidirectional tunnel of DSLMA to DSMAG for the mobile node that inserts first distributes globally unique IPv4 address and IPv6 home address prefix.When the network that DSMAG inserted was the IPv6 network, described unidirectional tunnel comprised IPv6in IPv6 tunnel and IPv4in IPv6 tunnel.IPv6in IPv6 tunnel is meant for common IPv6 packet, adds one deck ipv6 header at skin, for through IPv6in IPv6 tunnel data processed bag (two-layer ipv6 header is arranged), removes outer header.IPv4in IPv6 tunnel is meant for common IPv4 packet, adds one deck ipv6 header at skin, for through IPv4in IPv6 tunnel data processed bag (one deck IPV4 header and one deck ipv6 header are arranged), removes outer header.After finishing aforesaid operations, produce banding cache clauses and subclauses relevant, the IPv4 address and IPv6 home address prefix, the IPv6 address of DSMAG and the call number in the tunnel of setting up that comprise mobile node identifier, life cycle in these clauses and subclauses, distribute for mobile node with aforementioned mobile node.
When the banding cache clauses and subclauses exist, DSLMA can read out the IPv4 address and the IPv6 home address prefix of having distributed for the mobile node that inserts from the banding cache clauses and subclauses, upgrade the option relevant in the banding cache clauses and subclauses with the life cycle value among the aforementioned binding update messages DSPBUv6 then with life cycle, the unidirectional tunnel of foundation from DSLMA to DSMAG writes the call number in this tunnel in the option relevant with the tunnel call number in the banding cache clauses and subclauses.
No matter the IPv4 address and the IPv6 home address prefix of mobile node are newly assigned, still from existing banding cache clauses and subclauses, read out, DSLMA returns to DSMAG with this message after IPv4 address and IPv6 home address prefix are write binding response message DSPBAv6.Mentioned herein to the PBA message basis of binding response message DSPBAv6 in PMIPv6 on expand.In Fig. 4, provided the data format of PBA message and DSPBAv6 message, therefrom as can be seen, DSPBAv6 message has added the v4 home address option HoAv4 of mobile node than PBA message in mobile option, fill in the IPv4 address that promising mobile node distributes in this option.In addition, write the IPv6 home address prefix of distributing in the home address prefix HNPv6 option in this message for mobile node.Life cycle value in the life cycle value of this message and the aforesaid DSPBUv6 message is identical.
DSMAG receives DSLMA and sends DSPBAv6 message, and the life cycle of this message is greater than after 0, the unidirectional tunnel (comprise IPv6in IPv6 tunnel and IPv4in IPv6 tunnel) of foundation from DSMAG to DSLMA, thus the foundation of bidirectional tunnel between DSMAG and DSLMA finished; From DSPBAv6 message, read out IPv4 address and the IPv6 home address prefix of distributing to mobile node by DSLMA then, establishment comprises the Binding Update clauses and subclauses of information such as the IPv6 address of the IPv4 address of MN identifier, MN and IPv6 home address prefix, DSLMA and tunnel call number, sends RA (advertising of route message) and the DHCP response message that includes IPv4 address and IPv6 home address prefix to mobile node then.
Mobile node is realized the duplex configuration to IPv4 address and IPv6 home address prefix after receiving address message.For example, mobile node adopts stateless address configuration mode configuration of IP v6 address according to the RA that receives, according to the DHCP response message configuration of IP v4 address of receiving.Certainly, mobile node also can adopt other feasible modes to realize address configuration.
By aforesaid operations, mobile node has been finished the access to DSMAG, below just can realize with the opposite end communication node between communicate by letter.As everyone knows, the communication process of data comprises that mobile node sends to the packet of mobile node to the packet transmission and the opposite end communication node of opposite end communication node.Both are two separate processes, are therefore illustrated respectively.
When mobile node when the opposite end communication node sends data, with reference to figure 5, owing to mention in preamble, the IPv4 that moves on the mobile node uses, therefore the destination address and the source address of the packet that sends all are the IPv4 addresses.After this packet is sent to DSMAG, DSMAG can be forwarded to corresponding tunnel with this packet according to its source address, unidirectional tunnel from DSMAG to DSLMA for example noted earlier, before this packet is sent by the tunnel, skin at packet adds ipv6 header, destination address wherein is the IPv6 address of DSLMA, and source address is the IPv6 address of DSMAG.In general, DSMAG is when transmitting the packet that mobile node sent via the tunnel, and no matter the destination address and the source address of this packet are IPv4 address or IPv6 address, all can add ipv6 header at the skin of packet.Do the particular type of the application that can shield on the mobile node to be moved like this.DSLMA the ipv6 header of received data packet is removed, and then the packet after will handling is transmitted to the opposite end communication node after receiving packet from DSMAG by the tunnel.
When the opposite end communication node when mobile node sends data, with reference to figure 6, the destination address of the packet that sends and source address all are the IPv4 addresses.After this packet is sent to DSLMA, DSLMA can be forwarded to corresponding tunnel with this packet according to its source address, unidirectional tunnel from DSLMA to DSMAG for example noted earlier, before this packet is sent by the tunnel, skin at packet adds ipv6 header, destination address wherein is the IPv6 address of DSMAG, and source address is the IPv6 address of DSLMA.Same, DSLMA is when transmitting the packet that mobile node sent via the tunnel, and no matter the destination address and the source address of this packet are IPv4 address or IPv6 address, all can add ipv6 header at the skin of packet.Do the particular type of the application that can shield on the mobile node to be moved like this.DSMAG the ipv6 header of received data packet is removed, and then the packet after will handling is transmitted to mobile node after receiving packet from DSLMA by the tunnel.
More than be internet that DSMAG is inserted when being the network of IPv6 type, how realize access-in management mobile node, and explanation how to finish the communication process between mobile node and opposite end communication node.Also mention in the explanation in front, the internet that DSMAG inserted also might be the network of IPv4 type.In such cases, the communication process between the realization flow of the access-in management of mobile node and mobile node and opposite end communication node and the explanation of front are roughly the same, but slightly variant on some concrete details.Elaborate with regard to these discrepant places below.
In the process of the access-in management of mobile node, DSMAG no longer is DSPBUv6 to the binding update messages that DSLMA sends, but DSPBUv4.DSPBUv4 compares with the DSPBUv6 shown in Fig. 3, and at first, its ipv6 header changes IPV4 header into, and promptly IP layer source address changes the IPv4 address of DSMAG into, and destination address is the IPv4 address of DSLMA; Secondly, its type of message also changes DSPBUv4 into by DSPBUv6.Except above-mentioned change, other do not do corresponding variation.
Corresponding, corresponding variation has also taken place to the binding response message DSPBAv6 that DSMAG sends in DSLMA, becomes DSPBAv4 by DSPBAv6.DSPBAv4 compares with the DSPBAv6 shown in Fig. 4, and its ipv6 header changes IPV4 header into, and promptly IP layer source address changes the IPv4 address of DSLMA into, and destination address is the IPv4 address of DSMAG; Secondly, its type of message also changes DSPBAv4 into by DSPBAv6.Except above-mentioned change, other do not do corresponding variation.
Corresponding variation has also taken place in the type in the tunnel of setting up between DSMAG and DSLMA, becomes IPv6in IPv4 tunnel and IPv4in IPv4 tunnel by IPv6in IPv6 tunnel and IPv4in IPv6 tunnel.Similar with the definition in IPv6in IPv6 tunnel noted earlier and IPv4in IPv6 tunnel, IPv6in IPv4 tunnel is meant: for common IPv6 packet, add one deck IPV4 header at skin, for through IPv6in IPv4 tunnel data processed bag (one deck ipv6 header and one deck IPV4 header are arranged), remove outer header.IPv4in IPv64 tunnel is meant: the IPv4 packet for common, add one deck IPV4 header at skin, and for through IPv4in IPv4 tunnel data processed bag (two-layer IPV4 header is arranged), remove outer header.
The IPv6 address information of the DSLMA that is stored in the Binding Update clauses and subclauses of DSMAG is changed into the IPv4 address information, and the IPv6 address information of the DSMAG that is stored in the banding cache clauses and subclauses of DSLMA is also changed into the IPv4 address information.
In the communication process between mobile node and opposite end communication node, because the change of aforementioned tunnel type in the process that packet transmits via the tunnel, also can be changed into IPV4 header by ipv6 header at the header that the packet skin is added.
More than be internet that DSMAG is inserted when being the network of IPv4 type, how realize access-in management mobile node, and explanation how to finish the communication process between mobile node and opposite end communication node.In real world applications, also have a kind of situation be exactly the internet that inserts of DSMAG be the network of IPv4 and IPv6 coexistence, for this type of network as long as all can realize according in above-mentioned two kinds of processing methods any one, in general, according to access network be the situation processing of IPv6 network.
It should be noted last that above embodiment is only unrestricted in order to technical scheme of the present invention to be described.Although the present invention is had been described in detail with reference to embodiment, those of ordinary skill in the art is to be understood that, technical scheme of the present invention is made amendment or is equal to replacement, do not break away from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (12)
1. an agent mobile communication system is characterized in that, comprises Mobile Access Gateway and local mobile anchor, connects by IPv4 network or IPv6 network between described Mobile Access Gateway and the local mobile anchor; Wherein,
Described Mobile Access Gateway is used for initiating to ask simultaneously to described local mobile anchor the binding update messages of IPv4 address and IPv6 home address prefix after inserting mobile node, set up the unidirectional tunnel of described Mobile Access Gateway, and will dispose to the mobile node that is inserted from IPv4 address and the IPv6 home address prefix that local mobile anchor obtains to described mobile anchor point;
Described local mobile anchor is used to mobile node distributing IP v4 address and the configuration of IPv6 home address prefix simultaneously that is linked into described Mobile Access Gateway, then above-mentioned address is sent to described Mobile Access Gateway by the binding response message, and set up the unidirectional tunnel of described local mobile anchor to described Mobile Access Gateway.
2. agent mobile communication system according to claim 1 is characterized in that, when passing through the connection of IPv6 type network between described Mobile Access Gateway and the local mobile anchor, described tunnel comprises IPv6 in IPv6 tunnel and IPv4 in IPv6 tunnel; Wherein,
Described IPv6 in IPv6 tunnel comprises: the IPv6 packet for common, add one deck ipv6 header at skin, and the packet with two-layer ipv6 header for handling through IPv6 in IPv6 tunnel removes outer header;
Described IPv4 in IPv6 tunnel comprises: the IPv4 packet for common, add one deck ipv6 header at skin, and the packet that includes internal layer IPV4 header and outer ipv6 header for handling through IPv4 in IPv6 tunnel removes outer header.
3. agent mobile communication system according to claim 1 is characterized in that, when passing through the connection of IPv4 type network between described Mobile Access Gateway and the local mobile anchor, described tunnel comprises IPv6 in IPv4 tunnel and IPv4 in IPv4 tunnel; Wherein,
Described IPv6 in IPv4 tunnel: the IPv6 packet for common, add one deck IPV4 header at skin, the packet that includes internal layer ipv6 header and outer IPV4 header for handling through IPv6 in IPv4 tunnel removes outer header;
Described IPv4 in IPv64 tunnel comprises: the IPv4 packet for common, add one deck IPV4 header at skin, and the packet that includes two-layer IPV4 header for handling through IPv4 in IPv4 tunnel removes outer header.
4. agent mobile communication system according to claim 1, it is characterized in that, comprise the banding cache clauses and subclauses on the described local mobile anchor, the IPv4 address and IPv6 home address prefix, the address of Mobile Access Gateway and the call number in the tunnel of setting up that comprise mobile node identifier, life cycle in the described banding cache clauses and subclauses, distribute for mobile node.
5. agent mobile communication system according to claim 1, it is characterized in that, comprise the Binding Update clauses and subclauses on the described Mobile Access Gateway, described Binding Update clauses and subclauses comprise IPv4 address and IPv6 home address prefix, the address of local mobile anchor and the call number in the tunnel of setting up of mobile node identifier, mobile node.
6. method that realizes mobile communication in the described agent mobile communication system of one of claim 1-5 comprises:
After step 1), Mobile Access Gateway detect the access of mobile node, type according to the access the Internet sends corresponding binding update messages to local mobile anchor, to distribute to the IPv4 address and the IPv6 home address prefix of described mobile node to described local mobile anchor request;
Step 2), described local mobile anchor sends the binding response message to described Mobile Access Gateway, and sets up the unidirectional tunnel from described local mobile anchor to described Mobile Access Gateway; Described binding response message comprises promising described mobile node distributing IP v4 address and IPv6 home address prefix;
Step 3), described Mobile Access Gateway are set up the unidirectional tunnel from described Mobile Access Gateway to described local mobile anchor, and described IPv4 address and the IPv6 home address prefix of distributing to described mobile node is transferred to described mobile node;
Step 4), described mobile node dispose described IPv4 address and described IPv6 home address prefix, and according to moving the address that the type selecting used adapts on the node;
Realize data communication by the bidirectional tunnel between Mobile Access Gateway, Mobile Access Gateway and local mobile anchor, local mobile anchor between step 5), described mobile node and opposite end communication node, in communication process, described tunnel is that before packet is by tunnel transmission this packet adds the header that is complementary with the Internet, and described tunnel is the outer header removal of adding with packet before described data packet transmission goes out the tunnel.
7. method of mobile communication according to claim 6 is characterized in that, described step 2) comprising:
Step 2-1), after local mobile anchor receives binding update messages from Mobile Access Gateway, check the banding cache clauses and subclauses of self whether preserving the mobile node relevant,, carry out next step if do not exist with this binding update messages, if have execution in step 2-3);
Step 2-2), local mobile anchor is described mobile node distributing IP v4 address and IPv6 home address prefix, the unidirectional tunnel of foundation from described local mobile anchor to described Mobile Access Gateway, and on described local mobile anchor, preserve the banding cache clauses and subclauses relevant, execution in step 2-4 then) with described mobile node;
IPv4 address and IPv6 home address prefix, the address of Mobile Access Gateway and the call number in the tunnel of setting up that described banding cache clauses and subclauses comprise the identifier, life cycle of mobile node, distribute for mobile node;
Step 2-3), local mobile anchor reads as IPv4 address and the IPv6 home address prefix that described mobile node has distributed from the banding cache clauses and subclauses, the unidirectional tunnel of foundation from described local mobile anchor to described Mobile Access Gateway, and the call number in tunnel write in the relevant option of described banding cache clauses and subclauses;
Step 2-4), described IPv4 address and IPv6 home address prefix write the binding response message after, this message is sent to Mobile Access Gateway.
8. method of mobile communication according to claim 6 is characterized in that, described step 3) comprises:
Step 3-1), the unidirectional tunnel of foundation from described Mobile Access Gateway to described local mobile anchor;
Step 3-2), read out IPv4 address and the IPv6 home address prefix of distributing to mobile node by local mobile anchor the response message, create the IPv4 address and IPv6 home address prefix, the IPv6 address of local mobile anchor and the Binding Update clauses and subclauses of tunnel call number information that comprise mobile node identifier, mobile node from binding;
Step 3-3), send the DHCP response message that includes the advertising of route message of IPv6 home address prefix and include the IPv4 address to mobile node.
9. method of mobile communication according to claim 6, it is characterized in that, in described step 1), the Internet that is inserted is an IPv6 type network, add the v4 home address option HoAv4 of mobile node on the PBU message basis of described binding update messages in PMIPv6, and change the type of message.
10. method of mobile communication according to claim 6, it is characterized in that, in described step 1), the Internet that is inserted is an IPv4 type network, add the v4 home address option HoAv4 of mobile node on the PBU message basis of described binding update messages in PMIPv6, change ipv6 header into IPV4 header, and change the type of message.
11. method of mobile communication according to claim 6, it is characterized in that, in described step 2) in, the Internet that is inserted is an IPv6 type network, add the v4 home address option HoAv4 of mobile node on the PBA message basis of described binding response message in PMIPv6, fill in the IPv4 address that promising mobile node distributes in this option.
12. method of mobile communication according to claim 6, it is characterized in that, in described step 2) in, the Internet that is inserted is an IPv4 type network, add the v4 home address option HoAv4 of mobile node on the PBA message basis of described binding response message in PMIPv6, fill in the IPv4 address that promising mobile node distributes in this option, change ipv6 header into IPV4 header, and change the type of message.
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| CN2009102384132A CN101702800B (en) | 2009-11-19 | 2009-11-19 | Agent mobile communication system and method |
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| CN2009102384132A Expired - Fee Related CN101702800B (en) | 2009-11-19 | 2009-11-19 | Agent mobile communication system and method |
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Cited By (6)
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| WO2012000456A1 (en) * | 2010-07-02 | 2012-01-05 | Huawei Technologies Co., Ltd. | Network address translation six to four for proxy mobile internet protocol version six |
| CN103249026A (en) * | 2013-05-23 | 2013-08-14 | 中国科学院计算机网络信息中心 | Method for supporting HNP (Home Network Prefix) renumbering in PMIPv6 (Proxy Mobile Internet Protocol version 6) |
| CN103826250A (en) * | 2012-11-19 | 2014-05-28 | 京信通信系统（中国）有限公司 | Remote radio head unit reset method and device thereof |
| CN107949074A (en) * | 2017-12-06 | 2018-04-20 | 常熟理工学院 | A kind of reliable next generation network implementation method |
| CN112040441A (en) * | 2020-08-04 | 2020-12-04 | 深圳成谷智能科技有限公司 | Method and device for realizing communication between vehicle-mounted unit and network facility |
| CN114389997A (en) * | 2022-02-21 | 2022-04-22 | 武汉虹旭信息技术有限责任公司 | Method and device for acquiring IPv6 address prefix of mobile terminal |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1870633B (en) * | 2005-09-27 | 2010-06-02 | 华为技术有限公司 | Method for supporting mobile IPv4 by double-stack moible IPv6 node |
| CN100518147C (en) * | 2007-04-05 | 2009-07-22 | 中山大学 | Method for spanning heterogeneous network mobile telecommunication based on two-way tunnel |
| CN100512228C (en) * | 2007-04-28 | 2009-07-08 | 中山大学 | Method for realizing communication between IPv4 communication node and mobile node of crossing heterogeneous network |
| US8228843B2 (en) * | 2007-11-12 | 2012-07-24 | Futurewei Technologies, Inc. | Internet protocol version 4 support for proxy mobile internet protocol version 6 route optimization protocol |
| CN101448252B (en) * | 2008-06-20 | 2011-03-16 | 中兴通讯股份有限公司 | Network switching implementation method, system thereof and mobile nodes |
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| WO2012000456A1 (en) * | 2010-07-02 | 2012-01-05 | Huawei Technologies Co., Ltd. | Network address translation six to four for proxy mobile internet protocol version six |
| US9210735B2 (en) | 2010-07-02 | 2015-12-08 | Futurewei Technologies, Inc. | Network address translation six to four for proxy mobile internet protocol version six |
| CN103826250A (en) * | 2012-11-19 | 2014-05-28 | 京信通信系统（中国）有限公司 | Remote radio head unit reset method and device thereof |
| CN103826250B (en) * | 2012-11-19 | 2017-03-08 | 京信通信系统（中国）有限公司 | The repositioning method of Remote Radio Unit and its device |
| CN103249026A (en) * | 2013-05-23 | 2013-08-14 | 中国科学院计算机网络信息中心 | Method for supporting HNP (Home Network Prefix) renumbering in PMIPv6 (Proxy Mobile Internet Protocol version 6) |
| CN103249026B (en) * | 2013-05-23 | 2015-09-16 | 中国科学院计算机网络信息中心 | A kind of method supporting HNP to renumber in PMIPv6 |
| CN107949074A (en) * | 2017-12-06 | 2018-04-20 | 常熟理工学院 | A kind of reliable next generation network implementation method |
| CN107949074B (en) * | 2017-12-06 | 2021-03-19 | 常熟理工学院 | Reliable next generation network implementation method |
| CN112040441A (en) * | 2020-08-04 | 2020-12-04 | 深圳成谷智能科技有限公司 | Method and device for realizing communication between vehicle-mounted unit and network facility |
| CN114389997A (en) * | 2022-02-21 | 2022-04-22 | 武汉虹旭信息技术有限责任公司 | Method and device for acquiring IPv6 address prefix of mobile terminal |
| CN114389997B (en) * | 2022-02-21 | 2023-06-06 | 武汉虹旭信息技术有限责任公司 | Method and device for acquiring IPv6 address prefix of mobile terminal |
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