CN1889482A - Method for selecting insertion proxy in mixed network - Google Patents
Method for selecting insertion proxy in mixed network Download PDFInfo
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- CN1889482A CN1889482A CN 200510079722 CN200510079722A CN1889482A CN 1889482 A CN1889482 A CN 1889482A CN 200510079722 CN200510079722 CN 200510079722 CN 200510079722 A CN200510079722 A CN 200510079722A CN 1889482 A CN1889482 A CN 1889482A
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Abstract
A method for selecting switch-in agent for mixed network includes broadcasting agent discovery message to the other nodes when mobile terminal not being covered in range of cellular network is detected out, returning agent reply message containing terminal number being acted as agent back to mobile terminal by each node enabling to be as switch-in agent, selecting one node from those nodes as switch-in agent by mobile terminal according to received agent reply message.
Description
Technical field
The present invention relates to the hybrid network communication technical field, be specifically related to a kind of method that inserts the agency in the hybrid network of choosing.
Background technology
MANET (MANET) comes from Military Application, and through research and development for many years, its application target has expanded civil areas such as home network, individual radio mobile communication at present.The mobile radio networks that MANET is made up of one group of mobile node that has a wireless receiving and dispatching T unit, it does not rely on default infrastructure and interim the establishment, the node that moves in the network utilizes self radio transceiver exchange message, when each other not in communication range each other, can realize multi-hop communication by other intermediate node relaying.When intermediate node helps other node relaying, receive the grouping that previous node sends earlier, and then transmit to realize relaying, so be also referred to as Packet Radio Network or multihop network to next node.In wireless self-organization network, cancelled the notion of the Centroid in the legacy cellular mobile communications network, all nodes all are equal, and are directly interconnected by end-to-end peer-to-peer communications mode.Each node has the function of terminal and router concurrently, except self participates in also will providing forwarding capability for the data communication service of other nodes in the network the data communication process as communication terminal.
Cellular mobile communication networks and WLAN (wireless local area network) all belong to existing network infrastructure category, these wireless networks need base station or the such central control equipment of access services point, and wireless self-organization network is a kind of acentric distributed control network, it can not have or the situation of the existing network infrastructure of not convenient usefulness under a kind of communication supporting environment is provided.It has following characteristics: relatively poor, limited transmission bandwidth, the life span of the topological structure of no center and self-organization, multi-hop, dynamic change, the limitation of portable terminal, fail safe is short etc.
Along with 3-G (Generation Three mobile communication system) progresses into commercialization, the people in the industry to the common recognition of next generation mobile communication is: it is different with the earlier generations mobile communication system, is the comprehensive complication system that forms of a multiple systems.These systems comprise two generations and three generations's cellular system, for example, GSM (global system for mobile communications), UMTS (universal mobile telecommunications system), DVB (digital television broadcasting), HAPS wide areas such as (High Altitude Platform mobile communication system) covers dissemination system, support the WLAN (wireless local area network) that the two-forty focus covers, individual territory net and fixed access network etc.Introduce the mobile communication system of self-organizing mode, might become the important form of 4G or following mobile radio system.In mobile communication system, introduce the self-organizing mode, will bring following many benefits: remedy and cover defective, P2P (Peer-to-Peer, point-to-point) pattern is provided, reduces power consumption, raising capacity, shifting flows to alleviate the hot spot region because the saturated call congestion that causes of capacity and switch chain rupture.In a word, following mobile communication system can make network possess very high adaptivity and intelligent owing to introduced the self-organizing mode.
In this novel hybrid system, three kinds of communication modes are arranged, comprising: self-organizing mode, honeycomb mode and hybrid mode, promptly pass through the final access base station of multi-hop relay.In these three kinds of communication modes, preceding dual mode all has been the technology of comparative maturity, and the third communication mode, promptly how portable terminal communicates with fixed network under the self-organizing working method, then is a brand-new problem that needs research.Can address this problem by agent skill group.So-called agency is meant that in the multi-hop transmission other user's service request the most at last directly sends to the user of base station equipment.Suitable agency chooses bigger to the performance impact of communicating by letter with maintenance algorithm, but does not also have ready-made available solutions at present.
Summary of the invention
The purpose of this invention is to provide a kind of method that inserts the agency of choosing in the hybrid network, insert the agency, solve the communication issue of portable terminal and cellular network under the mixed networking mode to choose effectively.
A kind of method that inserts the agency in the hybrid network of choosing, described hybrid network comprises MANET and cellular network, described method comprises step:
A, detect oneself not in the coverage at described cellular network the time when described portable terminal, to other node broadcasts agent discovery message;
B, the node that each is received described agent discovery message and can insert the agency return proxy response message to described portable terminal, and comprise the terminal number that this node has been acted on behalf of in described proxy response message;
C, described portable terminal are acted on behalf of as inserting according to selected one of them node of the proxy response message of receiving.
Between described steps A and step B, comprise step:
After described other nodes are received described agent discovery message, oneself cannot do to insert the agency if detect, and the jumping figure of described agent discovery message then continues to the described agent discovery message of other node broadcasts less than predetermined value.
Described step B comprises:
Each receives that the node of described agent discovery message according to the information in the described agent discovery message, sets up the source node of described agent discovery message and the route between this node;
If this node can be done to insert the agency, then return proxy response message to described portable terminal by the route of setting up between each node.
Described step C comprises:
C1, described portable terminal are acted on behalf of as standby access according to the selected wherein a plurality of nodes of the proxy response message of receiving;
C2, set up the tabulation of standby access agent node according to described standby access agent node;
First node in C3, the selected described access agent node tabulation is as inserting the agency.
Described step C also comprises:
C4, described mobile terminal period each node in described standby access agent node tabulation sends HELLO message, detects the connectedness of each node;
After each node is received described HELLO message in C5, the described standby access agent node tabulation, reply the HELLO acknowledge message to described portable terminal, and in described HELLO acknowledge message, comprise the terminal number that this node has been acted on behalf of;
The order of each node during C6, described portable terminal are tabulated according to the described standby access agent node of the answer information updating of each node.
Described step C6 also comprises:
If do not receive the response message of described standby access agent node in the given time, then delete this node.
Described step C2 is specially: each standby access agent node is sorted according to jumping figure between itself and the described portable terminal and the terminal number of having acted on behalf of thereof.
Described method also comprises:
After described terminal moves in the coverage of described cellular network, delete all nodes in the described standby access agent node tabulation.
Described access agency is for being arranged in the node of described cellular network.
Described portable terminal is supported the self-organizing communication mode and the cellular mobile communication mode of multi-hop relay.
Alternatively, described cellular network comprises:
GSM, and/or GPRS, and/or WCDMA, and/or CDMA IS95A, and/or CDMA20001X, and/or CDMA2000, and/or TD-SCDMA.
Preferably,
Described agent discovery message comprises following information: type of message, flag bit, jumping figure, broadcasting number, purpose IP address, aim sequence number, source IP address, source sequence number;
Described proxy response message comprises following information: type of message, flag bit, next-hop node subnet, jumping figure, purpose IP address, aim sequence number, source IP address, Route Age, agent node number.
By above technical scheme provided by the invention as can be seen, the present invention is for portable terminal in the hybrid network, choose the access agency by portable terminal to other node broadcasts agent discovery message, insert fixed network by the access agency who chooses then, realize portable terminal under the self-organizing working method with the communicating by letter of fixed network, and pass through mobile terminal period ground to a plurality of standby accesses agency transmission HELLO message, detect its connectedness, the access agency's who has guaranteed to choose validity has improved access rate.Utilize the present invention, can remedy the covering defective of fixed network effectively, reduce the power consumption of whole network, improve the power system capacity of fixed network, multiple communication mode coexistence makes hybrid network possess very high adaptivity and intelligent.
Description of drawings
Fig. 1 is the MANET structural representation;
Fig. 2 is the structural representation of hybrid network;
Fig. 3 is that portable terminal is by inserting the flow process of agency and cellular network communication;
Fig. 4 is that the inventive method is chosen the realization flow figure that inserts the agency;
Message flow when Fig. 5 is hybrid network interior nodes A shown in Figure 2 and cellular network communication.
Embodiment
Core of the present invention is in the hybrid network of self-organizing network and cellular network coexistence, when portable terminal detects oneself not in the overlay area at cellular network the time, choose a node that is positioned at cellular network by the mode of broadcasting and insert the agency, and act on behalf of registration process and the call setup chain process of finishing in cellular network by the access of choosing as it; Then, send business information to the access agency by MANET, send business information to cellular network by inserting the agency again, the portable terminal in the realization hybrid network is communicated by letter with cellular network.
Choose in the process the agency, by portable terminal to other node broadcasts agent discovery message; Each node of receiving agent discovery message and can inserting the agency returns proxy response message to portable terminal, and comprises the terminal number that this node has been acted on behalf of in proxy response message; Like this, portable terminal can act on behalf of as standby access according to the selected wherein a plurality of nodes of the proxy response message of receiving, and therefrom chooses a node according to the terminal number that the jumping figure between its and these node and each node have been acted on behalf of and act on behalf of as access.Because terminal and the mobility that inserts the agency, therefore portable terminal also will detect the connectedness of each standby access agent node by HELLO message cycle ground, and according to testing result these standby access agent nodes are safeguarded, so that therefrom select an appropriate nodes as inserting the agency.
In order to make those skilled in the art person understand the present invention program better, the present invention is described in further detail below in conjunction with drawings and embodiments.
Self-organizing network is an autonomous system that all composition nodes are formed, and in a wireless self-organization network, intercoms mutually by the multi-hop wireless link between the node.Do not have infrastructure such as base station here, each node is the terminal of the reception and the information of transmission, serves as the router of other inter-node communications again.Its network configuration is as shown in Figure 1:
Owing to be subjected to the influence of signal transmission power, when node A communicates by letter with node C, need through the double bounce Radio Link, promptly set up Radio Link earlier with Node B, set up the Radio Link of Node B and node C again by Node B, then call-information is sent to Node B, send to node C by Node B again, vice versa.And can directly intercom mutually between node D and the node E.
In the hybrid network of MANET and Cellular Networks coexistence, as shown in Figure 2, some node in the MANET is positioned at the overlay area of Cellular Networks than node C, node D, node E, and at this moment, these nodes can be directly and base station communication.And other nodes (node A and Node B) are because in the overlay area of Cellular Networks, can not be directly and base station communication.
The present invention realizes communicating by letter of portable terminal and cellular network in the hybrid network by choosing the mode that inserts the agency.So-called insert the agency and be meant a portable terminal in the cellular network coverage, when one or more terminal outside the cellular network coverage will communicate with cellular network, it replaced these terminals to finish registration process in cellular network; And communication service data stream changed between cellular network protocols and MANET agreement, play the effect of a gateway.
With reference to Fig. 3, Fig. 3 shows portable terminal by inserting the flow process of agency and cellular network communication:
Step 301: portable terminal detects oneself whether in the coverage of cellular network.
If in the coverage of cellular network, then enter step 302: nullify it and insert agent node.
Then, enter step 303: directly and the base station communicate, link setup in this case, to tear chain process open identical with the terminal of normal cellular net.
If not in the coverage of cellular network, then enter step 304: choose and insert the agency.This access agency is for being arranged in certain node of cellular network.
Step 305: act on behalf of registration process and the call setup chain process of finishing in cellular network by the access of choosing.
Step 306: portable terminal sends business information to by the self-organizing mode and inserts the agency, sends business information to described cellular network by inserting the agency again, and vice versa.
In mixed communication mode, in the time of outside the user is in the area of coverage, user's identity registration information and business datum will be transferred to the access agency that the user chooses through multi-hop, by insert replace the user to finish and the base station between information interaction.Therefore suitable access agency chooses and safeguards that the performance impact to communicating by letter is bigger, and agency's choose and maintenance issues is the problem of a key.
In the present invention, to other node broadcasts agent discovery message PDIS, each node of receiving this agent discovery message and can inserting the agency is chosen and is inserted the agency to portable terminal loopback proxy response message PREP by portable terminal.
Agent discovery message PDIS comprises following information: type of message, flag bit, jumping figure, broadcasting number, purpose IP address, aim sequence number, source IP address, source sequence number.
It is as shown in table 1 below to set its packet format:
Table 1:
| Type | Flag bit | Reserved field | Jumping figure |
| The PDIS sign | |||
| Purpose IP address | |||
| Aim sequence number | |||
| Source IP address | |||
| Source sequence number | |||
Type (Type): the type of accusing the system message;
Flag bit (5Bit): add the field that mark (J) keeps for multicast, repair the field that mark (R) keeps for multicast, whether the PDIS mark (G) of obligation shows needs clean culture PDIS to give the node that indicates in the purpose IP address field, destination node answer mark (D) shows to have only destination node just this PDIS to be done answer, sequence number unknown mark (U): show aim sequence the unknown;
Jumping figure: from source node to the current jumping figure that receives the node of PDIS;
The broadcasting of PDIS number: and source IP address guarantees that together route of unique identification sets up the route requests that process sends;
The IP address of destination node: the IP address of destination node;
Destination node sequence number: the sequence number of the up-to-date any route that arrives destination node that source node is received;
Source node IP address: the IP addresses of nodes of initiating PDIS;
Source node sequence number: the current sequence number of node of initiating PDIS.
Proxy response message PREP comprises following information: type of message, flag bit, next-hop node subnet, jumping figure, purpose IP address, aim sequence number, source IP address, Route Age, agent node number.
It is as shown in table 2 below to set its packet format:
Table 2:
| Type | Flag bit | Reserved field | Prefix length | Jumping figure |
| Purpose IP address | ||||
| Aim sequence number | ||||
| Source IP address | ||||
| Life span | ||||
| Agent node number | ||||
Type (Type): the type of accusing the system message;
Flag bit (5Bit): repair mark (R): be the field of multicast reservation; Whether need to confirm mark (A): showing needs to acknowledge receipt of PREP;
Prefix length: if non-zero illustrates that next jumping of appointment will be taken as the next-hop node that arrives the pointed subnet of prefix;
Jumping figure: source node is to the jumping figure of destination node;
The IP address of destination node: the IP address of the destination node of this route;
Destination node sequence number: the destination node sequence number of this route;
Source node IP address: the IP addresses of nodes of initiating PDIS;
Life span (Lifetime): the node of receiving PREP is thought (unit: microsecond) of effective time of this route;
Agent node number: represent that this node has been the agency of several nodes.
Fig. 4 shows the inventive method and chooses the realization flow that inserts the agency, may further comprise the steps:
Step 401: the mobile subscriber is to other node broadcasts agent discovery message PDIS.
Step 402: receive that the node of agent discovery message PDIS sets up the route of source node and this node.
Step 403: whether the jumping figure that detects the agent discovery message of receiving is less than predetermined value.
If the predetermined value of being not less than then enters step 404: abandon the agent discovery message of receiving.
If less than predetermined value, then enter step 405: further detect the access agency that oneself whether can do this mobile subscriber.
If of course, then enter step 406: return proxy response message PREP to this mobile subscriber, in proxy response message, comprise the terminal number that this node has been acted on behalf of.
Then, enter step 407: continue to this agent discovery message of other node broadcasts.
If cannot, then directly enter step 407: continue to this agent discovery message of other node broadcasts.
Step 408: the mobile subscriber acts on behalf of as inserting according to selected one of them node of the proxy response message of receiving.
This mobile subscriber may receive the proxy response message of a plurality of node loopbacks, therefore, can therefrom select an appropriate nodes to do to insert the agency, and other nodes are acted on behalf of as standby access.
Insert choosing of agency for convenience, can set up a standby agent node tabulation, the node of all loopback proxy response message is all put into this table, also can therefrom choose plurality of nodes and put into this table.These a plurality of nodes are according to priority sorted in proper order, and when needing communication, first node of choosing in this table is acted on behalf of as inserting.
To these node sequencings the time, consider the distance between mobile subscriber and this node, just and the jumping figure between this node, and this node has been born the agency of several nodes.In order to improve communication efficiency, the node in the table can be carried out ascending order according to formula: Value=h+1.8*n and arrange, wherein h is the distance (jumping figure) between destination node and the source node; N represents that this node has been the agency of n node.
After access was acted on behalf of and selected, the mobile subscriber inserted agency's transmission Agent Solicitation to this, and access is replied agency confirmation message to the mobile subscriber after acting on behalf of and receiving this message.Simultaneously the agent node number of bearing that oneself writes down is added 1.After the mobile subscriber receives agency confirmation message, can send identity information to agent node and begin registration process.
Because the mobility of terminal in the radio communication, the agency of certain terminal may move to apart from this terminal position too far away and can't communicate with this terminal use, therefore in order to guarantee the validity of the node-agent that standby agent node is tabulated, also need the mobile subscriber that standby agent node information is regularly safeguarded.
At this problem, the present invention is by the detection of connectivity to the agency, and tabulation is constantly safeguarded and upgraded to standby agent node.If the mobile subscriber does not have in a period of time (can preestablish according to practical application) and these nodes communicate, then send HELLO message to these nodes periodically, detect the connectedness of each node.After each node is received HELLO message, reply the HELLO acknowledge message, and in the HELLO acknowledge message, comprise the number of acting on behalf of that this node supported to the mobile subscriber.The mobile subscriber is according to the order of each node in the standby access agent node tabulation of the answer information updating of each node.Still determine putting in order of each node by mentioned above principle, promptly sort according to jumping figure between itself and the mobile subscriber and the terminal number of having acted on behalf of thereof.If do not receive the response message of standby access agent node in the given time, then delete this node.
If current access agent node occurred in sequence change, then insert agency's replacing, select current first the node of coming as inserting the agency.Simultaneously send the agency to original agent node and cancels message, former agent node is received that the agency cancels to reply after the message and is cancelled acknowledge message, simultaneously the own agent node number of bearing that writes down subtracted 1.After the mobile subscriber chose new agent node, the agent node transmission Agent Solicitation to new selection carried out the proxy requests process again.
The concrete message format that above-mentioned Agent Solicitation, agency confirmation message, HELLO message, HELLO acknowledge message, agency cancel message, cancel acknowledge message can be determined according to application need.
When the mobile subscriber need insert cellular network, detect earlier oneself whether in the cellular network coverage.If in its scope, see that again oneself whether inserting agent node does not in addition nullify, then nullify and insert cellular network (link setup in this case, tear chain process open the same) after this accesss is acted on behalf of again with the terminal of normal cellular net; If not in the cellular network scope, then this node sends the business request information (choosing process if enter the agency without agent node) of band type of service to its agent node.After agent node is received this request, replace mobile subscriber and cellular network to finish the call setup chain process alternately, and begin to carry out professional transmission.During professional the transmission, the data that Cellular Networks is issued the mobile subscriber with needs send to this agent node, and agent node is transmitted data and given the mobile subscriber by MANET, and vice versa.After the service ending, the mobile subscriber initiates business and tears the chain request open, and after agent node was received and torn chain information open, what replace that mobile subscriber and Cellular Networks finish calling tore the chain rules open, and the affirmation message of tearing chain open to mobile subscriber's answer.
In the present invention, need portable terminal to support the self-organizing communication mode and the cellular mobile communication mode of multi-hop relay simultaneously.If the terminal of cellular network itself is also supported the self-organizing communication mode, then use single-mode terminal to get final product, otherwise, can adopt dual-mode terminal.
Be example with hybrid network interior nodes A shown in Figure 2 with communicating by letter of base station below, describe that the agency chooses in detail and the professional link setup and the process of tearing chain open, its message flow as shown in Figure 5:
Node A detects oneself not in the coverage of cellular network, an agent discovery of this node broadcasts (PDIS) message, and the intermediate node B that receives PDIS message is established to the route of source node (node A) according to the information among the PDIS.This route is called reverse route, and its destination node is the source node of broadcasting PDIS, and next-hop node is the neighbor node that PDIS is sent to this node.This node continues this message of node broadcasts towards periphery more then, this node judges whether oneself can act on behalf of simultaneously, if (node C, D have received the PDIS message that Node B is transmitted among the figure can just to reply proxy response message (PREP) to source node, they have all responded PREP message), PREP transmits to source node along the route of just having set up, in this process, receive that the node of PREP is established to the route of destination node, this route is called the forward route, its destination node is the source node of PREP, and next jumping is the neighbor node that PREP is sent to this node.
Like this, node A has received the proxy response message that node C and node D reply, and node A therefrom selects node C to insert the agency as it according to information in these message.Node A sends Agent Solicitation PREQ to node C then, after node C receives this message, replys agency confirmation message PACK to node A.After node A receives PACK message, send identity information to agent node and begin registration process:
Earlier log-on message is sent to Node B, be forwarded to node C, replace node A to finish registration process by node C by Node B.After registration was finished, node C sent to node A with registration confirmation message through Node B.
Then, node A sends the business request information that has type of service to node C, if node C supports this type of service, then replaces node A and cellular network to finish professional call establishment.If node C does not support this type of service, then directly return error message and give node A, this will make node A start the new agency who has QoS (service quality) to require and choose process, and the update agent node, finish said process by new agency then, begin to carry out professional transmission.
After the professional end of transmission, if initiate chain rupture message by the user of MANET, after agent node was received chain rupture message, what replace that the user finishes calling tore the chain rules open.Specific to this example, node A tears the chain request open to node C transmission business, and node C replaces node A and cellular network to finish professional call tear down process.Then, tear the chain success message open to node A answer business.
If the user by Cellular Networks initiates chain rupture message, after agent node was received chain rupture message, what replace that user and Cellular Networks finish calling tore the chain rules open, notifies the user then.Specific to this example, node C receives that Cellular Networks sends replaces node A and cellular network to finish the call tear down process of business after tearing the chain signaling open, tear the chain request open to node A transmission business then, node A receives that this business tears the chain request open and tear the chain success message open to node C answer business.
Though described the present invention by embodiment, those of ordinary skills know, the present invention has many distortion and variation and do not break away from spirit of the present invention, wish that appended claim comprises these distortion and variation and do not break away from spirit of the present invention.
Claims (12)
1, a kind of method that inserts the agency in the hybrid network of choosing, described hybrid network comprises MANET and cellular network, it is characterized in that, described method comprises step:
A, detect oneself not in the coverage at described cellular network the time when described portable terminal, to other node broadcasts agent discovery message;
B, the node that each is received described agent discovery message and can insert the agency return proxy response message to described portable terminal, and comprise the terminal number that this node has been acted on behalf of in described proxy response message;
C, described portable terminal are acted on behalf of as inserting according to selected one of them node of the proxy response message of receiving.
2, method according to claim 1 is characterized in that, comprises step between described steps A and step B:
After described other nodes are received described agent discovery message, oneself cannot do to insert the agency if detect, and the jumping figure of described agent discovery message then continues to the described agent discovery message of other node broadcasts less than predetermined value.
3, method according to claim 1 and 2 is characterized in that, described step B comprises:
Each receives that the node of described agent discovery message according to the information in the described agent discovery message, sets up the source node of described agent discovery message and the route between this node;
If this node can be done to insert the agency, then return proxy response message to described portable terminal by the route of setting up between each node.
4, method according to claim 1 and 2 is characterized in that, described step C comprises:
C1, described portable terminal are acted on behalf of as standby access according to the selected wherein a plurality of nodes of the proxy response message of receiving;
C2, set up the tabulation of standby access agent node according to described standby access agent node;
First node in C3, the selected described access agent node tabulation is as inserting the agency.
5, method according to claim 4 is characterized in that, described step C also comprises:
C4, described mobile terminal period each node in described standby access agent node tabulation sends HELLO message, detects the connectedness of each node;
After each node is received described HELLO message in C5, the described standby access agent node tabulation, reply the HELLO acknowledge message to described portable terminal, and in described HELLO acknowledge message, comprise the terminal number that this node has been acted on behalf of;
The order of each node during C6, described portable terminal are tabulated according to the described standby access agent node of the answer information updating of each node.
6, method according to claim 5 is characterized in that, described step C6 also comprises:
If do not receive the response message of described standby access agent node in the given time, then delete this node.
7, method according to claim 5 is characterized in that, described step C2 is specially: each standby access agent node is sorted according to jumping figure between itself and the described portable terminal and the terminal number of having acted on behalf of thereof.
8, method according to claim 1 and 2 is characterized in that, described method also comprises:
After described terminal moves in the coverage of described cellular network, delete all nodes in the described standby access agent node tabulation.
9, method according to claim 1 and 2 is characterized in that, described access agency is for being arranged in the node of described cellular network.
10, method according to claim 1 and 2 is characterized in that, described portable terminal is supported the self-organizing communication mode and the cellular mobile communication mode of multi-hop relay.
11, method according to claim 1 and 2 is characterized in that, described cellular network comprises:
GSM, and/or GPRS, and/or WCDMA, and/or CDMA IS95A, and/or CDMA20001X, and/or CDMA2000, and/or TD-SCDMA.
12, method according to claim 1 and 2 is characterized in that,
Described agent discovery message comprises following information: type of message, flag bit, jumping figure, broadcasting number, purpose IP address, aim sequence number, source IP address, source sequence number;
Described proxy response message comprises following information: type of message, flag bit, next-hop node subnet, jumping figure, purpose IP address, aim sequence number, source IP address, Route Age, agent node number.
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2005
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101291543B (en) * | 2008-06-18 | 2011-11-23 | 北京交通大学 | Automatically forwarding method and device with same frequency of digital non-center clustered system |
| CN101345999B (en) * | 2008-09-04 | 2011-02-16 | 上海交通大学 | Access control method of wireless hybrid network |
| WO2015035621A1 (en) * | 2013-09-13 | 2015-03-19 | 华为终端有限公司 | Method, device and system for connecting to network |
| CN105580400A (en) * | 2013-09-13 | 2016-05-11 | 高通股份有限公司 | System and method for multihop service discovery with member station proxy service advertisements |
| CN106255181A (en) * | 2015-06-10 | 2016-12-21 | 中兴通讯股份有限公司 | The cut-in method of subscriber equipment and subscriber equipment in a kind of multi-radio access technology |
| CN105848240A (en) * | 2016-05-16 | 2016-08-10 | 努比亚技术有限公司 | Routing device and method |
| CN105848240B (en) * | 2016-05-16 | 2019-05-21 | 努比亚技术有限公司 | A kind of route device and method |
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| Publication number | Publication date |
|---|---|
| CN100376097C (en) | 2008-03-19 |
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