CN106331200A

CN106331200A - Method for transmitting data between nodes, gateway node and node

Info

Publication number: CN106331200A
Application number: CN201510372777.5A
Authority: CN
Inventors: 曾清海
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2015-06-30
Filing date: 2015-06-30
Publication date: 2017-01-11
Also published as: WO2017000866A1

Abstract

The embodiment of the invention discloses a method for transmitting data between nodes. The method comprises the steps that a first gateway node selects a second gateway node according to a request of a first node, thereby enabling the first node to be connected with a second node through the first gateway node and the second gateway node; the first gateway node obtains an agent address allocated to the first node by the second gateway node; the first gateway node converts a source address of a data packet sent by the first node from a local address of the first node to the agent address; and the first gateway node sends the converted data packet to the second gateway node, thereby enabling the second gateway node to send the converted data packet to the second node. Correspondingly, the embodiment of the invention also discloses a gateway node and a node. Through adoption of the method, the gateway node and the node, the service continuity between a terminal and a server can be ensured, and moreover, the complexity of the terminal can be reduced.

Description

Method, gateway node and the node of a kind of internodal data transmission

Technical field

The present invention relates to wireless communication technology field, particularly relate to the method for a kind of internodal data transmission, net Articulare and node.

Background technology

LTE (Long Term Evolved, Long Term Evolution)/SAE (System Architecture Evolved, System Architecture Evolution) system is the evolution system of cellular mobile communication, its objective is to provide a kind of low time delay, The communication network of high data rate, high power capacity and low cost.SAE gateway in LTE/SAE system Including SGW (Serving Gateway, gateway) and PGW (Packet Data Network Gateway, Grouped data network gateway), SGW and PGW is two logic entities.Wherein, PGW is UE (User Equipment, subscriber equipment) it is linked into the IP anchor point of Packet Data Network, it is responsible for the IP address of distribution UE, There is packet route and the function forwarded.

Further, it is the IP anchor point of UE due to PGW, then no matter UE moves to where, institute Some packets through PGW, therefore will be referred to as centralized anchor point scheme.It is pointed out that centralized There is the defect that path does not optimizes in anchor point scheme, as shown in Fig. 1 (A), even if the APP Server that UE accesses (application server), just in this locality, packet also must detour from PGW.In order to overcome centralized anchor point side The problem that the path of case does not optimizes, proposes a kind of localization anchor point scheme, so-called localization anchor point in industry Scheme refers at local disposition and the functionally similar LGW of PGW (Local Gateway, local gateway), LGW can be an independent network node, it is also possible to eNB (Evolutional Node B, evolved Base station) co-sited, as shown in Fig. 1 (B), by local disposition LGW, UE access application server time, Packet need not detour from PGW, shortens path.But, but there is business and do not connect in localization anchor point scheme Continuous problem, as shown in Fig. 2 (A), as a example by LGW Yu eNB co-sited, when UE is from the clothes of former eNB After business district moves to the service area of new eNB, LGW changes (i.e. the change of IP anchor point), causes the IP of UE Address change, and then the business on former IP address of foundation can be interrupted.

IETF (The Internet Engineering Task Force, Internet engineering duty group) proposes DMM (Distributed Mobility Management, distributed mobile management) scheme solves this locality Change the anchor point discontinuous problem of scheme business.The main thought of DMM scheme is to maintain former LGW and does not changes, As shown in Fig. 2 (B), when UE moves to new LGW from former LGW, on the one hand UE does not discharge former IP Address (IP1 as depicted), the business set up on former IP address is relayed to application service by former LGW Device and do not interrupt, on the other hand UE distribute new IP address (IP2 as depicted), set up in new IP address On business be directly connected to application server by new LGW, it is seen that DMM scheme can solve business and not connect Continuous problem.But, the program requires that UE safeguards plural IP address, i.e. requires that UE is to difference Business use different IP address, add the complexity of UE.

Summary of the invention

Embodiments provide method, gateway node and the node of the transmission of a kind of internodal data, permissible Realize ensureing the seriality of business between terminal and server, reduce the complexity of terminal simultaneously.

Embodiment of the present invention first aspect provides the method for a kind of internodal data transmission, including:

First gateway node is according to request selecting second gateway node of primary nodal point, so that described primary nodal point Secondary nodal point is connected by described first gateway node and described second gateway node；

It is that described primary nodal point distributes vicariously that described first gateway node obtains described second gateway node Location；

Described primary nodal point is sent the source address of the packet come by described first segment by described first gateway node The local address of point is converted to described agent address；

Packet after conversion is sent to described second gateway node by described first gateway node, so that described Second gateway node sends it to described secondary nodal point.

In the first possible implementation of first aspect, described first gateway node is according to primary nodal point Request selecting the second gateway node, including:

Described first gateway node obtains the packet that primary nodal point sends, and the destination address of described packet is The network address of secondary nodal point；

Described first gateway node selects the second gateway node according to the destination address of described packet.

In conjunction with first aspect the first may implementation, the second may in implementation, described the One gateway node according to request selecting second gateway node of primary nodal point, including:

Described first gateway node obtains the demand signalling that primary nodal point sends, and described demand signalling carries finger Show the information of the second gateway node；

Described first gateway node selects the second gateway node according to described demand signalling.

In the third possible implementation of first aspect, described first gateway node is according to primary nodal point Before request selecting the second gateway node, also include:

Described first gateway node is when determining the unallocated local address of described primary nodal point, for described first segment Point assignment of home address.

In the 4th kind of possible implementation of first aspect, described first gateway node is according to primary nodal point After request selecting the second gateway node, also include:

Described first gateway node judges whether build between described first gateway node and described second gateway node Vertical have connection；

If it is not, the most described first gateway node sends connection establishment request to described second gateway node, so that Described second gateway node is set up with described first gateway node and is connected, and is described primary nodal point assignment agent Address.

In the 5th kind of possible implementation of first aspect, described method also includes:

When described primary nodal point switches to another first gateway node from described first gateway node, described The contextual information of described primary nodal point is sent to another first gateway node described by one gateway node, described Contextual information includes local address and the identification information of described second gateway node of described primary nodal point, with Make another first gateway node described determine described second gateway node according to described contextual information, and then make Described primary nodal point connects described second section by another first gateway node described and described second gateway node Point, and send packet to described secondary nodal point.

In conjunction with the 5th kind of possible implementation of first aspect, described in the 6th kind of possible implementation up and down Literary composition information also includes the agent address of described primary nodal point, so that another first gateway node described is by described the One node sends the source address of packet come described in the local address of described primary nodal point is converted to vicariously Location.

In conjunction with first aspect or first to the 6th any one possible implementation of first aspect, at the 7th kind In possible implementation, described primary nodal point includes that terminal, described first gateway node include base station and terminal Agent equipment, described second gateway node includes that server agent facility, described secondary nodal point include server.

In conjunction with first aspect or first to the 6th any one possible implementation of first aspect, at the 8th kind In possible implementation, described primary nodal point includes that terminal, described first gateway node include that terminal agent sets Standby, described second gateway node includes that server agent facility, described secondary nodal point include server.

In conjunction with first aspect or first to the 6th any one possible implementation of first aspect, at the 9th kind In possible implementation, described primary nodal point includes that terminal, described first gateway node include that terminal agent sets Standby, described secondary nodal point includes that server, described second gateway node are built in described server.

In conjunction with first aspect or first to the 6th any one possible implementation of first aspect, at the tenth kind In possible implementation, described primary nodal point includes that server, described first gateway node include server generation Reason equipment, described second gateway node includes that terminal agent equipment, described secondary nodal point include terminal.

In conjunction with first aspect or first to the 6th any one possible implementation of first aspect, the 11st Planting in possible implementation, described primary nodal point includes that terminal, described first gateway node are built in described end End, described second gateway node includes that server agent facility, described secondary nodal point include server.

Embodiment of the present invention second aspect provides the method for a kind of internodal data transmission, including:

Described primary nodal point is sent the packet come and sends to described second gateway joint by described first gateway node Point, so that after described second gateway node is described primary nodal point assignment agent address, by described packet Source address is converted to described agent address by the local address of described primary nodal point, and by the packet after conversion Send to described secondary nodal point.

In the first possible implementation of second aspect, described first gateway node is according to primary nodal point Request selecting the second gateway node, including:

In conjunction with second aspect the first may implementation, the second may in implementation, described the One gateway node according to request selecting second gateway node of primary nodal point, including:

In the third possible implementation of second aspect, described first gateway node is according to primary nodal point Before request selecting the second gateway node, also include:

In the 4th kind of possible implementation of second aspect, described first gateway node is according to primary nodal point After request selecting the second gateway node, also include:

In the 5th kind of possible implementation of second aspect, described method also includes:

In conjunction with second aspect or first to the 5th any one possible implementation of second aspect, at the 6th kind In possible implementation, described primary nodal point includes that terminal, described first gateway node include base station and terminal Agent equipment, described second gateway node includes that server agent facility, described secondary nodal point include server.

In conjunction with second aspect or first to the 5th any one possible implementation of second aspect, at the 7th kind In possible implementation, described primary nodal point includes that terminal, described first gateway node include that terminal agent sets Standby, described second gateway node includes that server agent facility, described secondary nodal point include server.

In conjunction with second aspect or first to the 5th any one possible implementation of second aspect, at the 8th kind In possible implementation, described primary nodal point includes that terminal, described first gateway node include that terminal agent sets Standby, described secondary nodal point includes that server, described second gateway node are built in described server.

In conjunction with second aspect or first to the 5th any one possible implementation of second aspect, at the 9th kind In possible implementation, described primary nodal point includes that server, described first gateway node include server generation Reason equipment, described second gateway node includes that terminal agent equipment, described secondary nodal point include terminal.

In conjunction with second aspect or first to the 5th any one possible implementation of second aspect, at the tenth kind In possible implementation, described primary nodal point includes that terminal, described first gateway node are built in described terminal, Described second gateway node includes that server agent facility, described secondary nodal point include server.

The embodiment of the present invention third aspect provides the method for a kind of internodal data transmission, including:

Second gateway node obtains primary nodal point and sends, by the first gateway node, the packet of coming；

The source address of described packet is changed by described second gateway node by the local address of described primary nodal point For agent address；

Packet after conversion is sent to secondary nodal point by described second gateway node.

May be in implementation in the first of the third aspect, the local address of described primary nodal point is described the One gateway node distribution.

In the possible implementation of the second of the third aspect, described second gateway node obtains primary nodal point and leads to Before crossing the packet that the first gateway node transmission comes, also include:

Described second gateway node obtains described first gateway node and sends the connection establishment request come；

Described second gateway node is set up with described first gateway node and is connected, and is the distribution of described primary nodal point Described agent address.

In conjunction with the third aspect the first of the third aspect or the second may implementation, may be real at the third In existing mode, described primary nodal point includes that terminal, described first gateway node include that base station and terminal agent set Standby, described second gateway node includes that server agent facility, described secondary nodal point include server.

In conjunction with the third aspect the first of the third aspect or the second may implementation, may be real at the 4th kind In existing mode, described primary nodal point includes that terminal, described first gateway node include terminal agent equipment, institute State the second gateway node and include that server agent facility, described secondary nodal point include server.

In conjunction with the third aspect the first of the third aspect or the second may implementation, may be real at the 5th kind In existing mode, described primary nodal point includes that terminal, described first gateway node include terminal agent equipment, institute State secondary nodal point and include that server, described second gateway node are built in described server.

In conjunction with the third aspect the first of the third aspect or the second may implementation, may be real at the 6th kind In existing mode, described primary nodal point includes that server, described first gateway node include server agent facility, Described second gateway node includes that terminal agent equipment, described secondary nodal point include terminal.

In conjunction with the third aspect the first of the third aspect or the second may implementation, may be real at the 7th kind In existing mode, described primary nodal point includes terminal, and described first gateway node is built in described terminal, described Second gateway node includes that server agent facility, described secondary nodal point include server.

Embodiment of the present invention fourth aspect provides the method for a kind of internodal data transmission, including:

Described first gateway node obtains the local address of described primary nodal point；

Described secondary nodal point is sent, by described second gateway node, the packet of coming by described first gateway node Destination address be converted to described local address by the agent address of described primary nodal point；

Packet after conversion is sent to described primary nodal point by described first gateway node.

In the first possible implementation of fourth aspect, described first gateway node is according to primary nodal point Request selecting the second gateway node, including:

In conjunction with fourth aspect the first may implementation, the second may in implementation, described the One gateway node according to request selecting second gateway node of primary nodal point, including:

In the third possible implementation of fourth aspect, described first gateway node is according to primary nodal point Before request selecting the second gateway node, also include:

In the 4th kind of possible implementation of fourth aspect, described first gateway node is according to primary nodal point After request selecting the second gateway node, also include:

In the 5th kind of possible implementation of fourth aspect, described method also includes:

When described primary nodal point switches to another first gateway node from described first gateway node, described The contextual information of described primary nodal point is sent to another first gateway node described by one gateway node, described Contextual information includes local address and the identification information of described second gateway node of described primary nodal point, with Make another first gateway node described determine described second gateway node according to described contextual information, and then make Described primary nodal point connects described second section by another first gateway node described and described second gateway node Point, and obtain the packet that described secondary nodal point is sent by described second gateway node.

In conjunction with fourth aspect or first to the 5th any one possible implementation of fourth aspect, at the 6th kind In possible implementation, described primary nodal point includes that terminal, described first gateway node include base station and terminal Agent equipment, described second gateway node includes that server agent facility, described secondary nodal point include server.

In conjunction with fourth aspect or first to the 5th any one possible implementation of fourth aspect, at the 7th kind In possible implementation, described primary nodal point includes that terminal, described first gateway node include that terminal agent sets Standby, described second gateway node includes that server agent facility, described secondary nodal point include server.

In conjunction with fourth aspect or first to the 5th any one possible implementation of fourth aspect, at the 8th kind In possible implementation, described primary nodal point includes that terminal, described first gateway node include that terminal agent sets Standby, described secondary nodal point includes that server, described second gateway node are built in described server.

In conjunction with fourth aspect or first to the 5th any one possible implementation of fourth aspect, at the 9th kind In possible implementation, described primary nodal point includes that server, described first gateway node include server generation Reason equipment, described second gateway node includes that terminal agent equipment, described secondary nodal point include terminal.

In conjunction with fourth aspect or first to the 5th any one possible implementation of fourth aspect, at the tenth kind In possible implementation, described primary nodal point includes that terminal, described first gateway node are built in described terminal, Described second gateway node includes that server agent facility, described secondary nodal point include server.

The embodiment of the present invention the 5th aspect provides the method for a kind of internodal data transmission, including:

Described first gateway node obtains described secondary nodal point and sends, by described second gateway node, the data of coming Bag, the destination address of described packet is turned by the agent address of described primary nodal point by described second gateway node It is changed to described local address；

Described packet is sent to described primary nodal point by described first gateway node.

In the first possible implementation of the 5th aspect, described first gateway node is according to primary nodal point Request selecting the second gateway node, including:

In conjunction with the 5th aspect the first may implementation, the second may in implementation, described the One gateway node according to request selecting second gateway node of primary nodal point, including:

In the third possible implementation of the 5th aspect, described first gateway node is according to primary nodal point Before request selecting the second gateway node, also include:

In the 4th kind of possible implementation of the 5th aspect, described first gateway node is according to primary nodal point After request selecting the second gateway node, also include:

In the 5th kind of possible implementation of the 5th aspect, described method also includes:

In conjunction with the 5th aspect or first to the 5th any one possible implementation of the 5th aspect, at the 6th kind In possible implementation, described primary nodal point includes that terminal, described first gateway node include base station and terminal Agent equipment, described second gateway node includes that server agent facility, described secondary nodal point include server.

In conjunction with the 5th aspect or first to the 5th any one possible implementation of the 5th aspect, at the 7th kind In possible implementation, described primary nodal point includes that terminal, described first gateway node include that terminal agent sets Standby, described second gateway node includes that server agent facility, described secondary nodal point include server.

In conjunction with the 5th aspect or first to the 5th any one possible implementation of the 5th aspect, at the 8th kind In possible implementation, described primary nodal point includes that terminal, described first gateway node include that terminal agent sets Standby, described secondary nodal point includes that server, described second gateway node are built in described server.

In conjunction with the 5th aspect or first to the 5th any one possible implementation of the 5th aspect, at the 9th kind In possible implementation, described primary nodal point includes that server, described first gateway node include server generation Reason equipment, described second gateway node includes that terminal agent equipment, described secondary nodal point include terminal.

In conjunction with the 5th aspect or first to the 5th any one possible implementation of the 5th aspect, at the tenth kind In possible implementation, described primary nodal point includes that terminal, described first gateway node are built in described terminal, Described second gateway node includes that server agent facility, described secondary nodal point include server.

The embodiment of the present invention the 6th aspect provides the method for a kind of internodal data transmission, including:

Second gateway node obtains secondary nodal point and sends the packet of coming；

The destination address of described packet is converted to by described second gateway node by the agent address of primary nodal point Local address；

Packet after conversion is sent to the first gateway node by described second gateway node, so that described first Gateway node sends it to described primary nodal point.

May be in implementation in the first of the 6th aspect, the local address of described primary nodal point is described the One gateway node distribution.

In the possible implementation of the second of the 6th aspect, described second gateway node obtains secondary nodal point and sends out Before the packet sent here, also include:

In conjunction with the possible implementation of first or the second of the 6th aspect or the 6th aspect, may be real at the third In existing mode, described primary nodal point includes that terminal, described first gateway node include that base station and terminal agent set Standby, described second gateway node includes that server agent facility, described secondary nodal point include server.

In conjunction with the possible implementation of first or the second of the 6th aspect or the 6th aspect, may be real at the 4th kind In existing mode, described primary nodal point includes that terminal, described first gateway node include terminal agent equipment, institute State the second gateway node and include that server agent facility, described secondary nodal point include server.

In conjunction with the possible implementation of first or the second of the 6th aspect or the 6th aspect, may be real at the 5th kind In existing mode, described primary nodal point includes that terminal, described first gateway node include terminal agent equipment, institute State secondary nodal point and include that server, described second gateway node are built in described server.

In conjunction with the possible implementation of first or the second of the 6th aspect or the 6th aspect, may be real at the 6th kind In existing mode, described primary nodal point includes that server, described first gateway node include server agent facility, Described second gateway node includes that terminal agent equipment, described secondary nodal point include terminal.

In conjunction with the possible implementation of first or the second of the 6th aspect or the 6th aspect, may be real at the 7th kind In existing mode, described primary nodal point includes terminal, and described first gateway node is built in described terminal, described Second gateway node includes that server agent facility, described secondary nodal point include server.

The embodiment of the present invention the 7th aspect provides the method for a kind of internodal data transmission, including:

Primary nodal point connects secondary nodal point and secondary nodal point by former first gateway node and the second gateway node Carry out data transmission；

Described primary nodal point, when switching is connected to new first gateway node, disconnects and described former first gateway joint Connection between point；

Described primary nodal point connects described second by described new first gateway node and described second gateway node Node also carries out data transmission with described secondary nodal point.

In the first possible implementation of the 7th aspect, described primary nodal point is connected to new first in switching During gateway node, disconnect the connection between described former first gateway node, including:

Described primary nodal point measures described former first gateway node and the signal of described new first gateway node respectively Quality；

Described primary nodal point is better than described former first gateway at the signal quality determining described new first gateway node During node, report to described former first gateway node, so that described former first gateway node is to described first segment Point sends instruction switching command；

Described primary nodal point receive described switching command, and according to described switching command switching be connected to described newly First gateway node, and disconnect the connection between described former first gateway node.

In the possible implementation of the second of the 7th aspect, described primary nodal point passes through described new first gateway Node and described second gateway node connect described secondary nodal point and carry out data transmission with described secondary nodal point, Including:

Described primary nodal point sends path integration request to upper strata, so that the second gateway node described in top level control Set up the connection between described new first gateway node.

In conjunction with the possible implementation of first or the second of the 7th aspect or the 7th aspect, may be real at the third In existing mode, described primary nodal point includes that terminal, described first gateway node include that base station and terminal agent set Standby, described second gateway node includes that server agent facility, described secondary nodal point include server.

In conjunction with the possible implementation of first or the second of the 7th aspect or the 7th aspect, may be real at the 4th kind In existing mode, described primary nodal point includes that terminal, described first gateway node include terminal agent equipment, institute State the second gateway node and include that server agent facility, described secondary nodal point include server.

In conjunction with the possible implementation of first or the second of the 7th aspect or the 7th aspect, may be real at the 5th kind In existing mode, described primary nodal point includes that terminal, described first gateway node include terminal agent equipment, institute State secondary nodal point and include that server, described second gateway node are built in described server.

In conjunction with the possible implementation of first or the second of the 7th aspect or the 7th aspect, may be real at the 6th kind In existing mode, described primary nodal point includes that server, described first gateway node include server agent facility, Described second gateway node includes that terminal agent equipment, described secondary nodal point include terminal.

In conjunction with the possible implementation of first or the second of the 7th aspect or the 7th aspect, may be real at the 7th kind In existing mode, described primary nodal point includes terminal, and described first gateway node is built in described terminal, described Second gateway node includes that server agent facility, described secondary nodal point include server.

Embodiment of the present invention eighth aspect provides a kind of gateway node, including:

Joint point selection module, for according to request selecting second gateway node of primary nodal point, so that described the One node connects secondary nodal point by this gateway node and described second gateway node；

Agent address acquisition module, for obtaining the generation that described second gateway node is the distribution of described primary nodal point Reason address；

Source address modular converter, for sending the source address of the packet come by described the by described primary nodal point The local address of one node is converted to described agent address；

Packet sending module, for the packet after conversion is sent to described second gateway node, so that Described second gateway node sends it to described secondary nodal point.

In the first possible implementation of eighth aspect, described joint point selection module, specifically for:

Obtaining the packet that primary nodal point sends, the destination address of described packet is the network ground of secondary nodal point Location；Destination address according to described packet selects the second gateway node.

In conjunction with the first possible implementation of eighth aspect, in the possible implementation of the second, described joint Point selection module, specifically for:

Obtaining the demand signalling that primary nodal point sends, described demand signalling carries instruction the second gateway node Information；The second gateway node is selected according to described demand signalling.

In the third possible implementation of eighth aspect, described gateway node also includes:

Address assignment module, for when determining the unallocated local address of described primary nodal point, for described first Node assignment of home address.

In the 4th kind of possible implementation of eighth aspect, described gateway node also includes:

Connection judgment module, is used for judging whether set up between this gateway node and described second gateway node Connect；

Request sending module, for judging this gateway node and described second gateway in described connection judgment module When not set up connection between node, send connection establishment request to described second gateway node, so that described Second gateway node is set up with this gateway node and is connected, and is described primary nodal point assignment agent address.

In the 5th kind of possible implementation of eighth aspect, described gateway node also includes:

Information sending module, is used for when described primary nodal point switches to another gateway node from this gateway node, Sending the contextual information of described primary nodal point to another gateway node described, described contextual information includes The local address of described primary nodal point and the identification information of described second gateway node, so that another gateway described Node is according to primary nodal point described in described contextual information identification and determines described second gateway node, and then makes Described primary nodal point connects described secondary nodal point by another gateway node described and described second gateway node, And send packet to described secondary nodal point.

In conjunction with the 5th kind of eighth aspect may implementation, the 6th kind may in implementation, described on Context information also includes the agent address of described primary nodal point, so that another gateway node described is by described first Node sends the source address of packet come described in the local address of described primary nodal point is converted to vicariously Location.

In conjunction with eighth aspect or first to the 6th any one possible implementation of eighth aspect, at the 7th kind In possible implementation, described primary nodal point includes terminal, and this gateway node includes that base station and terminal agent set Standby, described second gateway node includes that server agent facility, described secondary nodal point include server.

In conjunction with eighth aspect or first to the 6th any one possible implementation of eighth aspect, at the 8th kind In possible implementation, described primary nodal point includes terminal, and this gateway node includes terminal agent equipment, institute State the second gateway node and include that server agent facility, described secondary nodal point include server.

In conjunction with eighth aspect or first to the 6th any one possible implementation of eighth aspect, at the 9th kind In possible implementation, described primary nodal point includes terminal, and this gateway node includes terminal agent equipment, institute State secondary nodal point and include that server, described second gateway node are built in described server.

In conjunction with eighth aspect or first to the 6th any one possible implementation of eighth aspect, at the tenth kind In possible implementation, described primary nodal point includes server, and this gateway node includes server agent facility, Described second gateway node includes that terminal agent equipment, described secondary nodal point include terminal.

In conjunction with eighth aspect or first to the 6th any one possible implementation of eighth aspect, the 11st Planting in possible implementation, described primary nodal point includes that terminal, described first gateway node are built in described end End, described second gateway node includes that server agent facility, described secondary nodal point include server.

The embodiment of the present invention the 9th aspect provides a kind of gateway node, including:

Packet sending module, sends to described second net for described primary nodal point sends the packet come Articulare, so that after described second gateway node is described primary nodal point assignment agent address, by described data The source address of bag is converted to described agent address by the local address of described primary nodal point, and by the number after conversion Send to described secondary nodal point according to bag.

In the first possible implementation of the 9th aspect, described joint point selection module, specifically for:

In conjunction with the first possible implementation of the 9th aspect, in the possible implementation of the second, described joint Point selection module, specifically for:

In the third possible implementation of the 9th aspect, state gateway node and also include:

In the 4th kind of possible implementation of the 9th aspect, described gateway node also includes:

In the 5th kind of possible implementation of the 9th aspect, described gateway node also includes:

In conjunction with the 9th aspect or first to the 5th any one possible implementation of the 9th aspect, at the 6th kind In possible implementation, described primary nodal point includes terminal, and this gateway node includes that base station and terminal agent set Standby, described second gateway node includes that server agent facility, described secondary nodal point include server.

In conjunction with the 9th aspect or first to the 5th any one possible implementation of the 9th aspect, at the 7th kind In possible implementation, described primary nodal point includes terminal, and this gateway node includes terminal agent equipment, institute State the second gateway node and include that server agent facility, described secondary nodal point include server.

In conjunction with the 9th aspect or first to the 5th any one possible implementation of the 9th aspect, at the 8th kind In possible implementation, described primary nodal point includes terminal, and this gateway node includes terminal agent equipment, institute State secondary nodal point and include that server, described second gateway node are built in described server.

In conjunction with the 9th aspect or first to the 5th any one possible implementation of the 9th aspect, at the 9th kind In possible implementation, described primary nodal point includes server, and this gateway node includes server agent facility, Described second gateway node includes that terminal agent equipment, described secondary nodal point include terminal.

In conjunction with the 9th aspect or first to the 5th any one possible implementation of the 9th aspect, at the tenth kind In possible implementation, described primary nodal point includes that terminal, described first gateway node are built in described terminal, Described second gateway node includes that server agent facility, described secondary nodal point include server.

The embodiment of the present invention the tenth aspect provides a kind of gateway node, including:

Packet acquisition module, sends, by the first gateway node, the packet of coming for obtaining primary nodal point；

Address conversion module, for being turned the source address of described packet by the local address of described primary nodal point It is changed to agent address；

Packet sending module, for sending the packet after conversion to secondary nodal point.

May be in implementation in the first of the tenth aspect, the local address of described primary nodal point is described the One gateway node distribution.

In the possible implementation of the second of the tenth aspect, described gateway node also includes:

Acquisition request module, the connection establishment request come for obtaining described first gateway node to send；

Connection establishment module, is connected for setting up with described first gateway node, and divides for described primary nodal point Join described agent address.

In conjunction with the possible implementation of first or the second of the tenth aspect or the tenth aspect, may be real at the third In existing mode, described primary nodal point includes that terminal, described first gateway node include that base station and terminal agent set Standby, this gateway node includes that server agent facility, described secondary nodal point include server.

In conjunction with the possible implementation of first or the second of the tenth aspect or the tenth aspect, may be real at the 4th kind In existing mode, described primary nodal point includes that terminal, described primary nodal point include terminal, described first gateway joint Point includes terminal agent equipment, and this gateway node includes that server agent facility, described secondary nodal point include clothes Business device.

In conjunction with the possible implementation of first or the second of the tenth aspect or the tenth aspect, may be real at the 5th kind In existing mode, described primary nodal point includes that terminal, described first gateway node include terminal agent equipment, institute Stating secondary nodal point and include server, this gateway node is built in described server.

In conjunction with the possible implementation of first or the second of the tenth aspect or the tenth aspect, may be real at the 6th kind In existing mode, described primary nodal point includes that server, described first gateway node include server agent facility, This gateway node includes that terminal agent equipment, described secondary nodal point include terminal.

In conjunction with the possible implementation of first or the second of the tenth aspect or the tenth aspect, may be real at the 7th kind In existing mode, described primary nodal point includes terminal, and described first gateway node is built in described terminal, described Second gateway node includes that server agent facility, described secondary nodal point include server.

The embodiment of the present invention the 11st aspect provides a kind of gateway node, including:

Address acquisition module, for obtaining the local address of described primary nodal point；

Address conversion module, for sending, by described second gateway node, the data of coming by described secondary nodal point The destination address of bag is converted to described local address by the agent address of described primary nodal point；

Packet sending module, for sending the packet after conversion to described primary nodal point.

In the first possible implementation of the 11st aspect, described joint point selection module, specifically for:

In conjunction with the first possible implementation of the 11st aspect, in the possible implementation of the second, described Joint point selection module, specifically for:

In the third possible implementation of the 11st aspect, described gateway node also includes:

In the 4th kind of possible implementation of the 11st aspect, described gateway node also includes:

In the 5th kind of possible implementation of the 11st aspect, described gateway node also includes:

Information sending module, is used for when described primary nodal point switches to another gateway node from this gateway node, The contextual information of described primary nodal point is sent to another gateway node described by this gateway node, described up and down Literary composition information includes local address and the identification information of described second gateway node of described primary nodal point, so that institute State another gateway node and according to primary nodal point described in described contextual information identification and determine described second gateway joint Point, and then make described primary nodal point connect described by another gateway node described and described second gateway node Secondary nodal point, and obtain the packet that described secondary nodal point is sent by described second gateway node.

In conjunction with the 11st aspect or the 11st aspect first to the 5th any one may implementation, the In six kinds of possible implementations, described primary nodal point includes terminal, and this gateway node includes base station and terminal generation Reason equipment, described second gateway node includes that server agent facility, described secondary nodal point include server.

In conjunction with the 11st aspect or the 11st aspect first to the 5th any one may implementation, the In seven kinds of possible implementations, described primary nodal point includes terminal, and this gateway node includes terminal agent equipment, Described second gateway node includes that server agent facility, described secondary nodal point include server.

In conjunction with the 11st aspect or the 11st aspect first to the 5th any one may implementation, the In eight kinds of possible implementations, described primary nodal point includes terminal, and this gateway node includes terminal agent equipment, Described secondary nodal point includes that server, described second gateway node are built in described server.

In conjunction with the 11st aspect or the 11st aspect first to the 5th any one may implementation, the In nine kinds of possible implementations, described primary nodal point includes server, and this gateway node includes server agent Equipment, described second gateway node includes that terminal agent equipment, described secondary nodal point include terminal.

In conjunction with the 11st aspect or the 11st aspect first to the 5th any one may implementation, the In ten kinds of possible implementations, it is described that described primary nodal point includes that terminal, described first gateway node are built in Terminal, described second gateway node includes that server agent facility, described secondary nodal point include server.

The embodiment of the present invention the 12nd aspect provides a kind of gateway node, including:

Packet acquisition module, for obtaining what described secondary nodal point was come by described second gateway node transmission Packet, the destination address of described packet is by described second gateway node by described primary nodal point vicariously Location is converted to described local address；

Packet sending module, for sending described packet to described primary nodal point.

In the first possible implementation of the 12nd aspect, described joint point selection module, specifically for:

In conjunction with the first possible implementation of the 12nd aspect, in the possible implementation of the second, described Joint point selection module, specifically for:

In the third possible implementation of the 12nd aspect, described gateway node also includes:

In the 4th kind of possible implementation of the 12nd aspect, described gateway node also includes:

In the 5th kind of possible implementation of the 12nd aspect, described gateway node also includes:

In conjunction with the 12nd aspect or the 12nd aspect first to the 5th any one may implementation, the In six kinds of possible implementations, described primary nodal point includes terminal, and this gateway node includes base station and terminal generation Reason equipment, described second gateway node includes that server agent facility, described secondary nodal point include server.

In conjunction with the 12nd aspect or the 12nd aspect first to the 5th any one may implementation, the In seven kinds of possible implementations, described primary nodal point includes terminal, and this gateway node includes terminal agent equipment, Described second gateway node includes that server agent facility, described secondary nodal point include server.

In conjunction with the 12nd aspect or the 12nd aspect first to the 5th any one may implementation, the In eight kinds of possible implementations, described primary nodal point includes terminal, and this gateway node includes terminal agent equipment, Described secondary nodal point includes that server, described second gateway node are built in described server.

In conjunction with the 12nd aspect or the 12nd aspect first to the 5th any one may implementation, the In nine kinds of possible implementations, described primary nodal point includes server, and this gateway node includes server agent Equipment, described second gateway node includes that terminal agent equipment, described secondary nodal point include terminal.

In conjunction with the 12nd aspect or the 12nd aspect first to the 5th any one may implementation, the In ten kinds of possible implementations, it is described that described primary nodal point includes that terminal, described first gateway node are built in Terminal, described second gateway node includes that server agent facility, described secondary nodal point include server.

The embodiment of the present invention the 13rd aspect provides a kind of gateway node, including:

Packet acquisition module, sends, for obtaining secondary nodal point, the packet of coming；

Address conversion module, for being changed the destination address of described packet by the agent address of primary nodal point For local address；

Packet sending module, for the packet after conversion is sent to the first gateway node, so that described First gateway node sends it to described primary nodal point.

In the first possible implementation of the 13rd aspect, the local address of described primary nodal point is described First gateway node distribution.

In the possible implementation of the second of the 13rd aspect, described gateway node also includes:

In conjunction with the possible implementation of first or the second of the 13rd aspect or the 13rd aspect, can at the third In energy implementation, described primary nodal point includes that terminal, described first gateway node include base station and terminal generation Reason equipment, this gateway node includes that server agent facility, described secondary nodal point include server.

In conjunction with the possible implementation of first or the second of the 13rd aspect or the 13rd aspect, can at the 4th kind In energy implementation, described primary nodal point includes that terminal, described first gateway node include terminal agent equipment, This gateway node includes that server agent facility, described secondary nodal point include server.

In conjunction with the possible implementation of first or the second of the 13rd aspect or the 13rd aspect, can at the 5th kind In energy implementation, described primary nodal point includes that terminal, described first gateway node include terminal agent equipment, Described secondary nodal point includes server, and this gateway node is built in described server.

In conjunction with the possible implementation of first or the second of the 13rd aspect or the 13rd aspect, can at the 6th kind In energy implementation, described primary nodal point includes that server, described first gateway node include server agent Equipment, this gateway node includes that terminal agent equipment, described secondary nodal point include terminal.

In conjunction with the possible implementation of first or the second of the 13rd aspect or the 13rd aspect, can at the 7th kind In energy implementation, described primary nodal point includes that terminal, described first gateway node are built in described terminal, Described second gateway node includes that server agent facility, described secondary nodal point include server.

Embodiment of the present invention fourteenth aspect provides a kind of node, including:

First transport module, for connecting secondary nodal point also by former first gateway node and the second gateway node Carry out data transmission with secondary nodal point；

Connect handover module, for this node when switching is connected to new first gateway node, disconnect with described Connection between former first gateway node；

Second transport module, for connecting institute by described new first gateway node and described second gateway node State secondary nodal point and carry out data transmission with described secondary nodal point.

In the first possible implementation of fourteenth aspect, described connection disconnects module, including:

Quality measurement module, for measuring described former first gateway node and described new first gateway node respectively Signal quality；

Quality uploading module, for being better than described former the at the signal quality determining described new first gateway node During one gateway node, report to described former first gateway node, so that described former first gateway node is to this section Point sends instruction switching command；

Connect handover module, be used for receiving described switching command, and be connected to according to the switching of described switching command Described new first gateway node, and disconnect the connection between described former first gateway node.

The second in fourteenth aspect may be in implementation, described second transport module, specifically for Upper strata sends path integration request, so that the second gateway node is set up and described new first net described in top level control Connection between articulare.

In conjunction with fourteenth aspect the second of fourteenth aspect or the third may implementation, can at the third In energy implementation, described primary nodal point includes that terminal, described first gateway node include base station and terminal generation Reason equipment, described second gateway node includes that server agent facility, described secondary nodal point include server.

In conjunction with the 4th kind of possible implementation of fourteenth aspect, in the 4th kind of possible implementation, described This node includes that terminal, described first gateway node include base station and terminal agent equipment, described second gateway Node includes that server agent facility, described secondary nodal point include server.

In conjunction with fourteenth aspect the second of fourteenth aspect or the third may implementation, can at the 5th kind In energy implementation, described node includes that terminal, described first gateway node include terminal agent equipment, Described second gateway node includes that server agent facility, described secondary nodal point include server.

In conjunction with fourteenth aspect the second of fourteenth aspect or the third may implementation, can at the 6th kind In energy implementation, described node includes that terminal, described first gateway node include terminal agent equipment, Described secondary nodal point includes that server, described second gateway node are built in described server.

In conjunction with fourteenth aspect the second of fourteenth aspect or the third may implementation, can at the 7th kind In energy implementation, described node includes that server, described first gateway node include that server agent sets Standby, described second gateway node includes that terminal agent equipment, described secondary nodal point include terminal.

In conjunction with fourteenth aspect the second of fourteenth aspect or the third may implementation, can at the 8th kind In energy implementation, described primary nodal point includes that terminal, described first gateway node are built in described terminal, Described second gateway node includes that server agent facility, described secondary nodal point include server.

Therefore, in the embodiment of the present invention, the first gateway node is according to the request selecting second of primary nodal point Gateway node, so that primary nodal point connects secondary nodal point by the first gateway node and the second gateway node, During uplink transmission data, in the packet that primary nodal point is sent by the first gateway node or the second gateway node Source address retransmits after being converted to agent address by the local address of primary nodal point to secondary nodal point, in descending biography Target ground during transmission of data, in the packet that secondary nodal point is sent by the first gateway node or the second gateway node Location is converted to local address by the agent address of primary nodal point, therefore in primary nodal point and the data of secondary nodal point During transmission, primary nodal point sends the local address that the source address used by packet is primary nodal point all the time, Secondary nodal point sends the agent address that the destination address used by packet is primary nodal point all the time, it is seen that first segment The local address of point (even if switching between the first different gateway nodes) remains constant, thus builds The business stood on this address is not interrupted, it is ensured that the seriality of business, and primary nodal point need not be safeguarded simultaneously Multiple addresses, can reduce its complexity.

Accompanying drawing explanation

In order to be illustrated more clearly that the embodiment of the present invention, the accompanying drawing used required in embodiment will be made below Introduce simply, it should be apparent that, the accompanying drawing in describing below is only some embodiments of the present invention, right From the point of view of those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to according to these Accompanying drawing obtains other accompanying drawing.

Fig. 1 is the scene schematic diagram of a kind of data transmission that the embodiment of the present invention provides；

Fig. 2 is the scene schematic diagram of the another kind of data transmission that the embodiment of the present invention provides；

Fig. 3 is the scene schematic diagram of a kind of internodal data transmission that the embodiment of the present invention provides；

Fig. 4 is the schematic flow sheet of the method for a kind of internodal data transmission of first embodiment of the invention；

Fig. 5 is the schematic flow sheet of the method for the another kind of internodal data transmission of first embodiment of the invention；

Fig. 6 is the schematic flow sheet of the method for a kind of internodal data transmission of second embodiment of the invention；

Fig. 7 is the schematic flow sheet of the method for the another kind of internodal data transmission of second embodiment of the invention；

Fig. 8 is the schematic flow sheet of the method for a kind of internodal data transmission of third embodiment of the invention；

Fig. 9 is the schematic diagram of the first transmitting scene that the embodiment of the present invention provides；

Figure 10 is the schematic diagram of the first stack architecture that the embodiment of the present invention provides；

Figure 11 is the schematic flow sheet of the first access procedure that the embodiment of the present invention provides；

Figure 12 is the schematic flow sheet of the first handoff procedure that the embodiment of the present invention provides；

Figure 13 is the schematic diagram of the second transmitting scene that the embodiment of the present invention provides；

Figure 14 is the schematic diagram of the second stack architecture that the embodiment of the present invention provides；

Figure 15 is the schematic flow sheet of the second access procedure that the embodiment of the present invention provides；

Figure 16 is the schematic flow sheet of the second handoff procedure that the embodiment of the present invention provides；

Figure 17 is the schematic diagram of the third transmitting scene that the embodiment of the present invention provides；

Figure 18 is the schematic diagram that three (a) that the embodiment of the present invention provides plants stack architecture；

Figure 19 is the schematic diagram that three (b) that the embodiment of the present invention provides plants stack architecture；

Figure 20 is the schematic diagram of the 4th kind of transmitting scene that the embodiment of the present invention provides；

Figure 21 is the schematic flow sheet of the 4th kind of handoff procedure that the embodiment of the present invention provides；

Figure 22 is the schematic diagram that five (a) that the embodiment of the present invention provides plants transmitting scene；

Figure 23 is the schematic flow sheet that five (a) that the embodiment of the present invention provides plants access procedure；

Figure 24 is the schematic flow sheet that five (a) that the embodiment of the present invention provides plants handoff procedure；

Figure 25 is the schematic diagram that five (b) that the embodiment of the present invention provides plants transmitting scene；

Figure 26 is the schematic flow sheet that five (b) that the embodiment of the present invention provides plants access procedure；

Figure 27 is the schematic flow sheet that five (b) that the embodiment of the present invention provides plants handoff procedure；

Figure 28 is the structural representation of a kind of network node that first embodiment of the invention provides；

Figure 29 is the structural representation of the another kind of network node that first embodiment of the invention provides；

Figure 30 is the structural representation of another network node that first embodiment of the invention provides；

Figure 31 is the structural representation of a kind of network node that second embodiment of the invention provides；

Figure 32 is the structural representation of the another kind of network node that second embodiment of the invention provides；

Figure 33 is the structural representation of another network node that second embodiment of the invention provides；

Figure 34 is the structural representation of a kind of node that third embodiment of the invention provides；

Figure 35 is the structural representation of a kind of network node that the present invention provides；

Figure 36 is the structural representation of a kind of node that the present invention provides.

Detailed description of the invention

Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clearly Chu, be fully described by, it is clear that described embodiment be only a part of embodiment of the present invention rather than Whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creation The every other embodiment obtained under property work premise, broadly falls into the scope of protection of the invention.

It will be appreciated that the technical scheme of the embodiment of the present invention can apply to various communication system, such as: complete Ball mobile communication (Global System of Mobile communication, referred to as " GSM ") system, CDMA (Code Division Multiple Access, referred to as " CDMA ") system, wideband code division Multiple access (Wideband Code Division Multiple Access, referred to as " WCDMA ") system, logical With packet wireless business (General Packet Radio Service, referred to as " GPRS "), Long Term Evolution (Long Term Evolution, referred to as " LTE ") system, LTE FDD (Frequency Division Duplex, referred to as " FDD ") system, (Time Division Duplex is called for short LTE time division duplex For " TDD "), UMTS (Universal Mobile Telecommunication System, Referred to as " UMTS "), Wireless Fidelity (Wireless Fidelity, referred to as " WiFi ") communication system, Global interconnection inserting of microwave (Worldwide Interoperability for Microwave Access, referred to as " WiMAX ") communication system or the 5th generation in future (5th Generation, referred to as " 5G ") communication System etc..

In embodiments of the present invention, terminal (Terminal) can be subscriber equipment (User Equipment, Referred to as " UE "), mobile station (Mobile Station, referred to as " MS "), mobile terminal (Mobile Terminal), Customer Premise Equipment (customer terminal equipment, referred to as " CPE ") or Radio station (WiFi Station is referred to as " STA ") etc..This terminal can be through wireless access network (Radio Access Network, referred to as " RAN "), or WLAN (Wireless Local Access Network, Referred to as " WLAN ") communicating with one or more core net, such as, terminal can be mobile electricity Talking about (or being referred to as " honeycomb " phone) or have the computer etc. of mobile terminal, and for example, terminal can also is that Portable, pocket, hand-held, built-in computer or vehicle-mounted mobile device, they connect with wireless Network exchange voice and/or data.

In embodiments of the present invention, base station can be base station (the Base Transceiver in GSM or CDMA Station, referred to as " BTS "), it is also possible to it is the base station (NodeB, referred to as " NB ") in WCDMA, Can also is that the evolved base station (Evolutional Node B, referred to as " eNB ") in LTE, family Evolution base station (Home Node B, referred to as " HeNB "), relaying (Relay), Home eNodeB (Femto) Or little base station (Pico), it is also possible to it is the base station in 5G communication network or the access focus in WLAN (Access Point, referred to as " AP ").

In embodiments of the present invention, the net during gateway (Gateway) can be any one communication system above-mentioned Close, such as SGW (Serving Gateway, gateway), PGW (Packet Data Network Gateway, Grouped data network gateway) or the gateway such as LGW (Local Gateway, local gateway).

" address " in the embodiment of the present invention refers to IP address, and the IP address that packet carries includes source address (referred to as " source IP ") and destination address (referred to as " Target IP "), it can be appreciated that source address is used In instruction sender, destination address is used for indicating recipient.

For the ease of understanding hereinafter, the most first combine Fig. 3 and the embodiment of the present invention is made a simple general introduction.As Shown in Fig. 3, the node that the present embodiments relate to mainly include primary nodal point, the first gateway node, second Gateway node and secondary nodal point.Wherein, the first gateway node is the service broker of primary nodal point, primary nodal point Can switch between the first different gateway nodes, the second gateway node is the service broker of secondary nodal point, Each second gateway node corresponds to a secondary nodal point, the first different gateway nodes and the second different nets Can be set up by network between articulare and connect, and then realize the data between primary nodal point and secondary nodal point Transmission.In the embodiment of the present invention, before primary nodal point carries out data transmission with one or more secondary nodal points, Distribute agent address corresponding to each secondary nodal point and only local address for primary nodal point, pass in data During defeated, primary nodal point (even if switching between the first different gateway nodes) all the time uses this only The local address of one sends packet as source address, and the first gateway node or the second gateway node are by packet Source address by local address be converted to correspondence agent address, be finally sent to correspondence secondary nodal point；Enter One step ground, when multiple primary nodal points and a secondary nodal point carry out data transmission, can be different first The agent address that node distribution is different, secondary nodal point can be distinguished not according to the source address of its packet received Same primary nodal point.It addition, the successional reason that the embodiment of the present invention can ensure that business is, please join Read Fig. 3, when primary nodal point is connected to the first gateway node 3 from the first gateway node 2 switching, the first gateway Node 2 disconnects the connection with the second gateway node 2, and the first gateway node 3 is set up and the second gateway node 2 Connection, primary nodal point can transmit data by newly-built connection to secondary nodal point, again due to primary nodal point All the time same IP address (the most above-mentioned only local address) is used, therefore based on the business on this IP address Will not interrupt.

Fig. 4 is the schematic flow sheet of the method for a kind of internodal data transmission that first embodiment of the invention provides, The method is directed to uplink process (i.e. primary nodal point sends the process of packet to secondary nodal point), Source address is changed by the method by the first gateway node.The stream of the concrete grammar of the present embodiment as shown in the figure Journey may include that

S101, the first gateway node is according to request selecting second gateway node of primary nodal point, so that first segment O'clock connect secondary nodal point by the first gateway node and the second gateway node.

First gateway node is before request selecting the second gateway node according to primary nodal point, however, it is determined that first Node is unallocated local address, then be primary nodal point assignment of home address.

Specifically, the first gateway node includes according to the mode of request selecting second gateway node of primary nodal point Following two:

Mode one, the first gateway node obtains the packet that primary nodal point sends, the target ground of described packet Location is the network address of secondary nodal point；First gateway node selects the second gateway according to the destination address of packet Node.During implementing, the first gateway node reads data after obtaining the packet that primary nodal point sends The destination address of bag, the first gateway node may determine that, according to destination address, the second section that packet is to be sent to Point, and then determine the second gateway node that secondary nodal point is corresponding, thus realize selecting this second gateway node.

Mode two, the first gateway node obtains the demand signalling that primary nodal point sends, and described demand signalling carries There is the information of instruction the second gateway node；First gateway node selects the second gateway node according to demand signalling. During implementing, primary nodal point actively sends demand signalling, the first gateway node to the first gateway node Read information therein after receiving this demand signalling, this information can be the network address of secondary nodal point, IP address, Node identification information or service identification information etc. may indicate that the information of secondary nodal point, the first gateway node according to This information selects this second gateway node.

Further, the first gateway node after request selecting the second gateway node according to primary nodal point, Judge whether set up connection between the first gateway node and the second gateway node, if it is not, then the first gateway joint O'clock send connection establishment request to the second gateway node, so that the foundation of the second gateway node and the first gateway node Connecting, and be primary nodal point assignment agent address, do not deal with, now the second gateway node is It is that primary nodal point is assigned with agent address when in foundation connection.

Going through said process, primary nodal point can connect second by the first gateway node and the second gateway node Node.

S102, the first gateway node obtains the agent address that the second gateway node is primary nodal point distribution.

Specifically, the first gateway node obtains the side of the agent address that the second gateway node is primary nodal point distribution Formula includes following several:

Mode one, the second gateway node is to be sent to the first gateway node after primary nodal point is assigned with agent address, First gateway node receives this agent address.

Mode two, the first gateway node is preserved the second gateway node and is that primary nodal point distributes and not yet lost efficacy Agent address, the first gateway node directly reads this agent address.

Mode three, the first gateway node sends to obtain the contextual information come from other first gateway node and is somebody's turn to do Agent address.

S103, primary nodal point is sent the source address of the packet come by the basis of primary nodal point by the first gateway node Way address is converted to agent address.

Wherein, the source address of this packet is the local address of primary nodal point, and destination address is secondary nodal point The network address.

Specifically, the first gateway node keeps the destination address of packet constant (i.e. destination address is still second The network address of node), source address is converted to agent address by the local address of primary nodal point.

S104, the packet after conversion is sent to the second gateway node by the first gateway node, so that the second net Articulare sends it to secondary nodal point.

Specifically, the packet after conversion is sent to the second gateway node, the second gateway by the first gateway node Node sends it to secondary nodal point after receiving, thus realizes primary nodal point and send packet to secondary nodal point Uplink process.

Alternatively, when primary nodal point switches to another first gateway node from the first gateway node, the first net The contextual information of primary nodal point is sent to another the first gateway node, described contextual information bag by articulare Include the local address of primary nodal point and the connection configuration information information of the second gateway node, the second gateway node Connecting configuration information can be that the ID of the second gateway node, port numbers or tunnel number etc. can identify the second gateway joint The information of point.Wherein, switching here, can be that primary nodal point moves from the service area of the first gateway node Service area to another the first gateway node triggers, it is also possible to primary nodal point is restarted after falling net and triggered, Etc., the most do not make exhaustive.

Go through said process, the company of the second gateway node in another the first gateway node contextual information Connect configuration information and determine the second gateway node, and set up connection therewith, so primary nodal point by another first Gateway node and the second gateway node connect secondary nodal point, and transmit data, its uplink to secondary nodal point Process is identical with the present embodiment procedures described above, repeats no more here.It is pointed out that another One gateway node can directly know primary nodal point institute with the local address of the primary nodal point in contextual information Allocated local address, and without inquiring about to primary nodal point.

Further, described contextual information also includes the agent address of primary nodal point, another first gateway node The generation that primary nodal point is allocated can be directly known with the agent address of the primary nodal point in contextual information Reason address, and without to the second gateway inquiry, when source address is changed, another first gateway node The source address of packet is converted to this agent address by the local address of primary nodal point.

It should be noted that primary nodal point in the embodiment of the present invention, the first gateway node, the second gateway joint The equipment that point and secondary nodal point are specifically referred to, at least can be divided into following four to combine:

Combination one, primary nodal point includes terminal, and the first gateway node includes base station and terminal agent equipment, the Two gateway nodes include that server agent facility, secondary nodal point include server.Wherein, terminal and base station it Between set up and eat dishes without rice or wine user plane bearer, setting up between base station and terminal agent equipment has user plane bearer.

Combination two, primary nodal point includes terminal, and the first gateway node includes terminal agent equipment, the second gateway Node includes that server agent facility, secondary nodal point include server.

Combination three, primary nodal point includes terminal, and the first gateway node includes terminal agent equipment, secondary nodal point Including server, the second gateway node is built in described server.

Combination four, primary nodal point includes server, and the first gateway node includes server agent facility, second Gateway node includes terminal agent equipment, and secondary nodal point includes terminal.

Therefore, in the embodiment of the present invention, the first gateway node is according to the request selecting second of primary nodal point Gateway node, so that primary nodal point connects secondary nodal point by the first gateway node and the second gateway node, During uplink transmission data, the source address in the packet that primary nodal point is sent by the first gateway node is by first segment The local address of point retransmits to secondary nodal point, therefore at primary nodal point and second section after being converted to agent address During the data transmission of point, it is primary nodal point all the time that primary nodal point sends the source address used by packet Local address, it is seen that the local address of primary nodal point (even if switching between the first different gateway nodes) Remain constant, thus the business set up on this address do not interrupted, it is ensured that the seriality of business, Primary nodal point need not safeguard multiple address simultaneously, can reduce its complexity.

Fig. 5 is the flow process signal of the method for the another kind of internodal data transmission that first embodiment of the invention provides Figure, the method is directed to uplink process (i.e. primary nodal point sends the process of packet to secondary nodal point), Source address is changed by the method by the second gateway node.The stream of the concrete grammar of the present embodiment as shown in the figure Journey may include that

S201, the first gateway node is according to request selecting second gateway node of primary nodal point, so that first segment O'clock connect secondary nodal point by the first gateway node and the second gateway node.

This step is identical with step S101 in Fig. 4, repeats no more here.

Notice ground, goes through this step, and local address and the agent address of primary nodal point are the most allocated.

S202, primary nodal point is sent the packet come and sends to the second gateway node by the first gateway node.

Specifically, the packet that primary nodal point transmission is not come by the first gateway node processes, directly by it Send to the second gateway node.

S203, the second gateway node obtains the first gateway node and sends the packet of coming.

S204, the source address of packet is converted to agency by the local address of primary nodal point by the second gateway node Address.

Specifically, the second gateway node keeps the destination address of packet constant (i.e. destination address is still second The network address of node), source address is converted to agent address by the local address of primary nodal point.

S205, the packet after conversion is sent to secondary nodal point by the second gateway node.

Specifically, the packet after conversion is sent to secondary nodal point by the second gateway node, thus realizes first Node sends the uplink process of packet to secondary nodal point.

Alternatively, when primary nodal point switches to another first gateway node from the first gateway node, the first net The contextual information of primary nodal point is sent to another the first gateway node, described contextual information bag by articulare Include the local address of primary nodal point and the connection configuration information information of the second gateway node, the second gateway node Connecting configuration information can be that the ID of the second gateway node, port numbers or tunnel number etc. can identify the second gateway joint The information of point.

Equally, the primary nodal point in the embodiment of the present invention, the first gateway node, the second gateway node and second The equipment that node is specifically referred to, the most at least can be divided into four kinds of combinations mentioned by step S104 in Fig. 4, Here repeat no more.

Therefore, in the embodiment of the present invention, the first gateway node is according to the request selecting second of primary nodal point Gateway node, so that primary nodal point connects secondary nodal point by the first gateway node and the second gateway node, During uplink transmission data, the source address in the packet that primary nodal point is sent by the second gateway node is by first segment The local address of point retransmits to secondary nodal point, therefore at primary nodal point and second section after being converted to agent address During the data transmission of point, it is primary nodal point all the time that primary nodal point sends the source address used by packet Local address, it is seen that the local address of primary nodal point (even if switching between the first different gateway nodes) Remain constant, thus the business set up on this address do not interrupted, it is ensured that the seriality of business, Primary nodal point need not safeguard multiple address simultaneously, can reduce its complexity.

Fig. 6 is the schematic flow sheet of the method for a kind of internodal data transmission that second embodiment of the invention provides, The method is directed to downlink transmission process (i.e. secondary nodal point sends the process of packet to primary nodal point), Destination address is changed by the method by the first gateway node.The concrete grammar of the present embodiment as shown in the figure Flow process may include that

S301, the first gateway node is according to request selecting second gateway node of primary nodal point, so that first segment O'clock connect secondary nodal point by the first gateway node and the second gateway node.

This step is identical with step S101 in Fig. 4, repeats no more here.

S302, the first gateway node obtains the local address of primary nodal point.

Specifically, the mode of the local address that the first gateway node obtains primary nodal point includes following two: side Formula one, the first gateway node is directly to know after primary nodal point assignment of home address；Mode two, the first gateway Node sends the contextual information come from other first gateway node and obtains this local address.

S303, secondary nodal point is sent the target of the packet come by the first gateway node by the second gateway node Address is converted to local address by the agent address of primary nodal point.

Wherein, the source address of this packet is the network address of secondary nodal point, and destination address is primary nodal point Agent address.

Specifically, the first gateway node keeps the source address of packet constant (i.e. source address is still secondary nodal point The network address), destination address is converted to local address by the agent address of primary nodal point.

S304, the packet after conversion is sent to primary nodal point by the first gateway node.

Specifically, the packet after conversion is sent to primary nodal point by the first gateway node, thus realizes second Node sends the downlink transmission process of packet to primary nodal point.

Go through said process, the company of the second gateway node in another the first gateway node contextual information Connect configuration information and determine the second gateway node, and set up connection therewith, so primary nodal point by another first Gateway node and the second gateway node connect secondary nodal point, and obtain secondary nodal point and sent out by the second gateway node The packet sent, its downlink transmission process is identical with the present embodiment procedures described above, repeats no more here. It is pointed out that another first gateway node can with the primary nodal point in contextual information locally The local address that primary nodal point is allocated directly is known in location, and without inquiring about to primary nodal point.

Therefore, in the embodiment of the present invention, the first gateway node is according to the request selecting second of primary nodal point Gateway node, so that primary nodal point connects secondary nodal point by the first gateway node and the second gateway node, During downlink transmission data, the destination address in the packet that secondary nodal point is sent by the first gateway node is by first The agent address of node is converted to local address, the mistake therefore transmitted in the data of primary nodal point and secondary nodal point Cheng Zhong, secondary nodal point sends the agent address that the destination address used by packet is primary nodal point all the time, it is seen that Secondary nodal point need not safeguard multiple address for the business of same primary nodal point, can reduce its complexity.

Fig. 7 is the flow process signal of the method for the another kind of internodal data transmission that second embodiment of the invention provides Figure, the method is directed to downlink transmission process (i.e. secondary nodal point sends the process of packet to primary nodal point), Destination address is changed by the method by the second gateway node.The concrete grammar of the present embodiment as shown in the figure Flow process may include that

S401, the first gateway node is according to request selecting second gateway node of primary nodal point, so that first segment O'clock connect secondary nodal point by the first gateway node and the second gateway node.

This step is identical with step S101 in Fig. 4, repeats no more here.

S402, the second gateway node obtains secondary nodal point and sends the packet of coming.

S403, the destination address of packet is converted to this by the agent address of primary nodal point by the second gateway node Way address.

Specifically, the second gateway node keeps the source address of packet constant (i.e. source address is still secondary nodal point The network address), destination address is converted to local address by the agent address of primary nodal point.

S404, the packet after conversion is sent to the first gateway node by the second gateway node.

S405, the first gateway node obtains the second gateway node and sends the packet of coming.

S406, the first gateway node sends data packets to primary nodal point.

Go through said process, the company of the second gateway node in another the first gateway node contextual information Connect configuration information and determine the second gateway node, and then primary nodal point is by another first gateway node and the second net Articulare connects secondary nodal point, and obtains the packet that secondary nodal point is sent by the second gateway node, this number Local address is converted to by the second gateway node by the agent address of primary nodal point, under it according to the destination address of bag Row transmitting procedure is identical with the present embodiment procedures described above, repeats no more here.It is pointed out that Another first gateway node can directly know first with the local address of the primary nodal point in contextual information The local address that node is allocated, and without inquiring about to primary nodal point.

Therefore, in the embodiment of the present invention, the first gateway node is according to the request selecting second of primary nodal point Gateway node, so that primary nodal point connects secondary nodal point by the first gateway node and the second gateway node, During downlink transmission data, the destination address in the packet that secondary nodal point is sent by the second gateway node is by first The agent address of node is converted to local address, the mistake therefore transmitted in the data of primary nodal point and secondary nodal point Cheng Zhong, secondary nodal point sends the agent address that the destination address used by packet is primary nodal point all the time, it is seen that Secondary nodal point need not safeguard multiple address for the business of same primary nodal point, can reduce its complexity.

Fig. 8 is the schematic flow sheet of the method for a kind of internodal data transmission that third embodiment of the invention provides, The method is directed to handoff procedure, and (i.e. primary nodal point is connected to new first net from former first gateway node switching The process of articulare), the method does not differentiates between uplink and downlink transmitting procedure.The present embodiment is concrete as shown in the figure The flow process of method may include that

S501, primary nodal point connects secondary nodal point and with the by former first gateway node and the second gateway node Two nodes carry out data transmission.

Referring to Fig. 3, former first gateway node is as shown in the first gateway node 2 in figure, and the second gateway node is such as In figure shown in the second gateway node 2, primary nodal point is saved with the first gateway by the former connection shown in dotted line in figure Point 2 connection, the first gateway node 2 is connected with the second gateway node 2 by the former connection shown in dotted line in figure, Second gateway node 2 is connected with secondary nodal point, and then primary nodal point can carry out data transmission with secondary nodal point. Here it is the mode that before switching, primary nodal point carries out data transmission with secondary nodal point.

S502, primary nodal point, when switching is connected to new first gateway node, disconnects and former first gateway node Between connection.

Alternatively, if primary nodal point moves to new first gateway node from the service area of former first gateway node The scene of service area, primary nodal point, when switching is connected to new first gateway node, disconnects and former first gateway The concrete operations of the connection between node may is that primary nodal point measures former first gateway node and Xin respectively The signal quality of one gateway node；Primary nodal point is better than former at the signal quality determining new first gateway node During one gateway node, report to former first gateway node, so that former first gateway node sends to primary nodal point Instruction switching command；Primary nodal point receives switching command, and is connected to new first net according to switching command switching Articulare, and disconnect the connection between former first gateway node.Such as: community 1 is the first gateway joint The service area of point, community 2 is the service area of the second gateway node, and primary nodal point moves to community 1 from community 1 During with the border of community 2, primary nodal point measures former first gateway node and the letter of new first gateway node respectively Number quality, and be to maintain according to measurement result and still set up and new first net with the connection of former first gateway node The connection of articulare.

S503, primary nodal point connects secondary nodal point and with the by new first gateway node and the second gateway node Two nodes carry out data transmission.

Primary nodal point connects secondary nodal point and secondary nodal point by new first gateway node and the second gateway node Before carrying out data transmission, send path integration request to upper strata, so that top level control the second gateway node is built Stand the connection between new first gateway node.

Referring still to Fig. 3, new first gateway node is as shown in the first gateway node 3 in figure, and primary nodal point passes through New connection shown in solid in figure is connected with the first gateway node 3, and the first gateway node 3 is by solid line in figure Shown new connection is connected with the second gateway node 2, and the second gateway node 2 is connected with secondary nodal point, and then Primary nodal point can carry out data transmission with secondary nodal point.Here it is primary nodal point clicks on second section after Qie Huan The mode of row data transmission.

The most alternatively, in order to, after former Connection Release but before newly connection does not sets up, still ensure the seriality of business, Before primary nodal point sends path integration request to upper strata, temporarily by new first gateway node, former first net Articulare and the second gateway node connect secondary nodal point and carry out data transmission with secondary nodal point.

In sum, in the embodiment of the present invention, the link before switching is: primary nodal point≤> former first gateway joint Point≤> the second gateway node≤> secondary nodal point；Link in switching is: primary nodal point≤> new first gateway Node≤> former first gateway node≤> the second gateway node≤> secondary nodal point；Link after switching is: the One node≤> new first gateway node≤> the second gateway node≤> secondary nodal point.

Therefore, in the embodiment of the present invention, primary nodal point when switching is connected to new first gateway node, Disconnect the connection between described former first gateway node, and then by new first gateway node and the second gateway Node connects secondary nodal point and carries out data transmission with secondary nodal point, it is possible to achieve ensure first segment on link The seriality of business between point and secondary nodal point.

In order to illustrate that the present invention's realizes process further, below in conjunction with primary nodal point, the first gateway joint The combination of the equipment that point, the second gateway node and secondary nodal point are specifically referred to, and the stack under various combination Structure, illustrates in more detail.

Fig. 9 is the schematic diagram of the first transmitting scene that the present embodiment provides.In the present embodiment, first segment Point is terminal (being referred to as " UE " in the present embodiment), and the first gateway node is that base station (is referred to as in the present embodiment " eNB ") and the combination of terminal agent equipment (being referred to as " UE-Proxy " in the present embodiment), the second gateway Node is server agent facility (being referred to as " Server-Proxy " in the present embodiment), and secondary nodal point is service Device (is referred to as " APP Server " in the present embodiment), in addition, also includes MME (Mobility Management Entity, Mobility Management Entity), it is used for dispatching and controlling UE, eNB and UE-Proxy. In figure, UE connects UE-Proxy by access network.In order to simplify access network, in the present embodiment, UE arrives Interface between UE-Proxy is made up of two ends, and UE connects eNB, eNB by Uu interface of eating dishes without rice or wine to be passed through C-X interface is directly connected to UE-Proxy, and eNB can also reconnect after SGW/PGW in theory UE-Proxy；One eNB can connect one or more UE-Proxy, and one or more eNB can also Connect a UE-Proxy；UE-Proxy can be connected with Server-Proxy by C-P interface；App Server Then it is connected with Server-Proxy by C-B interface.Wherein, above-mentioned interface is connected can set up end-to-end tunnel The mode in road can also be by the way of end-to-end route, and the data made a start are sent to specify node.

Further, the stack architecture of the present embodiment can as shown in Figure 10, in figure between UE and UE-Proxy The tunnel setting up point-to-point connects.This tunnel reality is made up of tunnel, two ends, passes through LTE between UE and eNB Uu interface of eating dishes without rice or wine connects, and data tunnel of eating dishes without rice or wine is referred to as between Radio Bearer, eNB and UE-Proxy logical Cross GTP-U tunnel to connect.Forwarding between this UE Radio Bearer and corresponding GTP-U tunnel is closed System is one to one, the tunnel between UE to the UE-Proxy that the most total composition is complete, the institute of UE There are data all can pass through the UE-Proxy of its correspondence.UE can set up with tunnel, multiplexing existing phone user face Journey completes said process, the SGW/PGW during UE-Proxy is equivalent to LTE system on stream.It addition, App Server is the application server on a Internet, and the connection between Server-Proxy is by setting Put the mode of route so that the data of App Server and UE forward through Server Proxy.Compared to upper State UE by the way of setting up tunnel, connect the agency of correspondence, use logical for being in the App Server of public network The mode crossing route can reduce or avoid the impact on App Server.By App Server and Route between Server-Proxy is arranged so that App Server is to one or several IP address field interior nodes The data sent are by all forwarding through Server-Proxy.For specific UE, Server-Proxy is permissible Distribute different IP, in order to when receiving the data that App Server is sent to UE, according to its purpose IP Judge corresponding UE-Proxy, be sent to by the connection between Server-Proxy and UE-Proxy UE-Proxy.When the IP resource of Server-Proxy is less, the data of different UE may be distributed identical IP, the Server-Proxy side by NAT (Network Address Translation, network address translation) Formula, determines the data of different UE by IP and UDP/TCP port numbers.UE-Proxy and Server-Proxy Between can set up according to configuration and connect and keep, it is also possible to according to the business demand of UE, dynamic and App Server-Proxy corresponding for Server sets up and connects.To UE nontransparent mode, between UE and UE-Proxy (optionally passing through eNB) can be consulted need to access App Server, as UE indicates the App needing to access The domain name (e.g.www.google.com) of Server or address (e.g.110.238.2.38), UE-Proxy The corresponding relation between App Server and Server-Proxy according to configuration, selects Server-Proxy.Right UE transparent mode, UE directly transmits packet to UE-Proxy, UE-Proxy according to IP number in packet According to the domain name in packet header or HTTP packet header, know that UE needs the App Server accessed, search correspondence Server-Proxy。

On this basis, Figure 11 is the schematic flow sheet of a kind of access procedure that the embodiment of the present invention provides, should Method is the illustration to method described in Fig. 4 and Fig. 6, may include that

S601, UE set up the connection between eNB.

Specifically, UE passes through RRC (Radio Resource Control, radio resource control) process, Set up space interface signaling in resident community and corresponding eNB to connect, the signaling special in order to transmit UE.

S602, UE pass through eNB registered network.

Specifically, UE connects transmission Attach Request by eating dishes without rice or wine, and registers network.

S603, eNB are UE registered network to MME.

Specifically, eNB by Initial UE Message and carries the Attach Request message that UE sends To MME.

S604, MME authentication process.

Specifically, before MME processes Attach Request, need, by authentication process, to differentiate both sides' node Whether it is trusted node.And produce the relevant information such as AES and key for follow-up security process.

S605, MME are that UE selects UE-Proxy.

Specifically, if authenticating successfully, MME selects a UE-Proxy, initiates Create Proxy Request.The selection of UE-Proxy can consider that it connects the factors such as the coverage of eNB and load balancing. Each eNB can be configured with the UE-Proxy of acquiescence, if condition is indefinite, the most eligible acquiescence UE-Proxy.Create Proxy Request can carry various signings and the authority information of UE, be used for assisting UE-Proxy is UE assignment of home address (local IP).

S606, UE-Proxy are that UE distributes local IP.

Specifically, if Create Proxy Request does not carry local IP, UE-Proxy is that UE distributes local IP, the local IP that local IP is UE during otherwise UE-Proxy directly uses Create Proxy Request And by the GTP-U TEID of its correspondence of traffic assignments, it is sent to MME by Create Proxy Response.

S607, MME and eNB set up connection.

Specifically, MME and eNB is set up between eNB and UE-Proxy by Initial Context Setup User plane bearer (tunnel).

MME is configured the message of local IP and is sent to UE by S608, eNB.

Specifically, corresponding user plane bearer of eating dishes without rice or wine (radio bearer), Jin Ertong are set up between eNB and UE Know that corresponding local IP is to UE.

S609, UE send the packet pointing to server 1 (App Server1).

Specifically, if UE desires access to App Server1, by user plane bearer of eating dishes without rice or wine, with local IP it is Source address (source address) sends packet by eNB to UE-Proxy.

S610, UE-Proxy search corresponding server agent facility 1 (Server-Proxy1).

Specifically, after UE-Proxy receives packet, search corresponding service according to destination address Server-Proxy1 acted on behalf of by device.And search correspondence UE whether have been set up correspondence UE-Proxy and Connection between Server-Proxy1, if it did not, data cached, initiate Create Tunnel Request. If there being execution step S612.

S611, Server-Proxy1 are UE assignment agent address 1 (Remote IP1).

Specifically, after Server-Proxy1 receives Create Tunnel Request, it is this UE in its IP pond Distribution Remote IP1, and set up tunnel corresponding to UE, and send Create Tunnel Response notice UE-Proxy, and preserve remote IP1, UE-Proxy and the corresponding relation in corresponding tunnel.

The address information of packet is changed by S612, UE-Proxy.

Specifically, issuing the data of App Server for receiving UE, UE-Proxy is by the source in IP head Address is converted to the remote of Server-Proxy1 distribution corresponding for destination address from local IP IP1.For being sent to the packet of UE from App Server, UE-Proxy is by the destination in IP head Address is converted to local IP from remote IP1.So far can carry out two-way between UE and App Server Data communication.

S613, UE send the packet pointing to server 2 (App Server2).

Specifically, if UE desires access to App Server2, by user plane bearer of eating dishes without rice or wine, with local IP it is Source address (source address) sends packet by eNB to UE-Proxy.

S614, UE-Proxy search corresponding server agent facility 2 (Server-Proxy2).

Specifically, after UE-Proxy receives packet, search corresponding service according to destination address Server-Proxy2 acted on behalf of by device.And search correspondence UE whether have been set up correspondence UE-Proxy and Connection between Server-Proxy2, if it did not, data cached, initiate Create Tunnel Request. If there being execution step S616.

S615, Server-Proxy2 are UE assignment agent address 2 (Remote IP2).

Specifically, after Server-Proxy2 receives Create Tunnel Request, it is this UE in its IP pond Distribution Remote IP2, and set up tunnel corresponding to UE, and send Create Tunnel Response notice UE-Proxy, and preserve remote IP2, UE-Proxy and the corresponding relation in corresponding tunnel.

The source address of packet is changed by S616, UE-Proxy.

Specifically, issuing the data of App Server for receiving UE, UE-Proxy is by the source in IP head Address is converted to the remote of Server-Proxy2 distribution corresponding for destination address from local IP IP2.For being sent to the packet of UE from App Server, UE-Proxy is by the destination in IP head Address is converted to local IP from remote IP2.So far can carry out two-way between UE and App Server Data communication.

It is pointed out that the embodiment of the present invention is generalized to server n (App Server n) the most applicable, Here repeat no more.

Correspondingly, Figure 12 is the schematic flow sheet of the first handoff procedure that the embodiment of the present invention provides, the party Method is the illustration to method described in Fig. 8, in the present embodiment, it is assumed that UE is initially accessed base station 1 (eNB1), And by terminal agent equipment 1 (UE-Proxy1), simultaneously with server 1 (App Server1) kimonos Business device 2 (App Server2) transmission business, App Server1 and App Server2 corresponding server generation respectively Reason equipment 1 (Server-Proxy1) and server agent set 2 (Server-Proxy2).Wherein, UE and User face data a-1, a-2 between eNB1 represent；User face number between eNB1 and UE-Proxy1 Represent according to b-1, b-2；User face between UE-Proxy1 and Server-Proxy1, Server-Proxy2 Data c-1, c-2 represent；Server-Proxy1, Server-Proxy2 and App Server1, App Server2 Between user face data d-1, d-2 represent.The flow process of the concrete grammar of the present embodiment is permissible as shown in the figure Including:

It is logical that S701, UE1 connect Server1, UE1 by eNB1, UE-Proxy1 and Server Proxy1 Cross eNB1, UE-Proxy1 and Server Proxy2 and connect Server2, and transmit data.

Wherein, Server-Proxy1 and Server-Proxy2 is assigned with remote IP1 and remote to UE respectively IP2, UE-Proxy1 are assigned with local IP to UE.

The signal quality of S702, UE detection eNB1 and eNB2.

Specifically, UE moves to eNB2 cell boarder in community from eNB1, is handed down to according to eNB1 The measurement configuration of UE, when meeting measurement report condition, as under eNB2 community than the connecing of community under eNB1 When receiving big 3 dB of signal intensity, UE reporting measurement reports is to eNB1.

S703, eNB1 initiate eNB1 and eNB2 handoff procedure to UE.

Specifically, eNB receives measurement report, according to variable structure contorl, it is determined that UE should be switched to letter Going down in number higher community, in the present embodiment, eNB1 judges that UE should be switched to eNB2, therefore initiates eNB1 With eNB2 handoff procedure.In LTE, switching is divided into S1 switching and X2 to switch, and the present embodiment switches to X2 Example, by handover request and handover response message exchange UE between eNB1 and eNB2 Contextual information, the address of UE-Proxy1 and tunnel information, and get out corresponding resource at eNB2 Configure the work such as switching command and the anti-pass tunnel of setting up between eNB1 to eNB2, cut for transmission Change period eNB1 and fail to be sent to the data of UE.

S704, UE switching is connected to eNB2.

Specifically, eNB1 is by RRC Reconfiguration message transmission switching command to terminal, and instruction is eventually District in the community under eNB2 is changed in end-grain cutting, and UE leaves former community after receiving.

Data are transferred to eNB2 by S705, eNB1.

Specifically, eNB1 sends SN status transfer and is eventually transferred to the PDCP of UE to eNB2, instruction No. SN, for eNB2 continue PDCP data continue and terminal transmission, for there is no transmission success, By consulting re-transmission between eNB2 and UE.The community under eNB1 is had been moved off due to UE, so UE-Proxy1 The downlink data of b-1 and b-2 issuing eNB1 cannot be sent to UE, builds here by step S703 Vertical anti-pass tunnel, is sent to eNB2 by eNB1, is represented by e-1 and e-2, and eNB2 can cache this portion Divided data, until UE is then forwarded to UE after being successfully connected.

S706, UE1 connect Server1 by eNB2, eNB1, UE-Proxy1 and Server Proxy1, UE1 connects Server2 by eNB2, eNB1, UE-Proxy1 and Server Proxy2, and transmits data.

Specifically, the new community of instruction in UE search switching command, Bing Yugai community synchronizes, by switching Stochastic accessing is initiated in Stochastic accessing configuration in order to this community, after success, sends RRC Reconfiguration Complete message, notice eNB2 completes switching.So far UE with eNB2 has become Merit sets up the radio bearer eated dishes without rice or wine.Down direction, the data that App Server1/App Server2 sends D-1/d-2 to Server-Proxy1/Server-Proxy2, then acts on behalf of and again c-1/c-2 is transmitted to UE-Proxy1, UE-Proxy1 is after the address mapping described in the 1st step, and b-1/b-2 is sent to eNB1, eNB1 by anti- Pass tunnel and e-1/e-2 be sent to data that anti-pass comes by eNB2, eNB2 at empty port load-supporting A-1-D, A-2-D is sent to UE.Up direction, UE sends A-1-U and A-2-U by empty port load-supporting to eNB2, ENB2 is according to the address tunnel information of the UE-Proxy1 of the 3rd step, and E-1-U/E-2-U is to UE-Proxy1 in transmission, UE-Proxy1 is sent to Sever-Proxy1/Server-Proxy2 by c-1/c-2, Sever-Proxy1/Server-Proxy2 is being routed to App-Server1/App-Server2 by d-1/d-2.

S707, eNB2 withdraw from forwarding.

Specifically, eNB2 sends Path Switch message to MME, it is desirable to UE-Proxy1 is by b-1/b-2 Downlink data be sent directly to eNB2, it is to avoid from eNB1 forward.

S708, MME notice UE-Proxy2 with Server-Proxy1 and Server-Proxy2 sets up and is connected.

Specifically, after MME receives Path Switch message, can choose whether UE-Proxy to be revised. If MME judges that needing amendment UE-Proxy1 is UE-Proxy2, MME initiates to UE-Proxy2 Create Proxy Request wherein can carry various signings and the authority information of UE, is used for assisting UE-Proxy Distribute suitable resource for UE, optionally can carry the local IP of UE, and carry Server-Proxy Address and tunnel information, notice UE-Proxy2 connect Server-Proxy1/Server-Proxy2.

S709, UE connect Server1 by eNB2, UE-Proxy2 and Server Proxy1.

Specifically, UE-Proxy2 indicates according to Create Proxy Request, and connection is specified Server-Proxy1 initiates Proxy Connection Modify process, is used for indicating Server-Proxy1 by former The data of UE-Proxy1 issue UE-Proxy2.Address and the tunnel information of UE-Proxy1, UE can be carried The information such as remote IP, demonstrate the need for the tunnel of change.And carry address and the tunnel of UE-Proxy2 Information, for indicating the new link information of Server-Proxy1.After Server-Proxy1 receives request, update Issue the data of UE-Proxy1 to issuing UE-Proxy2, and optionally carry UE-Proxy2 and issue The new address of Server-Proxy1 and tunnel information.Renewal link information after UE-Proxy2 reception, so far, Connection between UE-Proxy2 and Server-Proxy1 has been set up.

S710, UE connect Server2 by eNB2, UE-Proxy2 and Server Proxy2,.

Specifically, identical with step S710 method amendment Server-Proxy2 is connected to UE-Proxy2.Extremely This, the connection between UE-Proxy2 and Server-Proxy2 has been set up.

S711, UE transmit data by eNB2, UE-Proxy2 and Server Proxy1 Yu Server1, UE transmits data by eNB2, UE-Proxy2 and Server Proxy2 Yu Server2.

S712, UE-Proxy2 notice MME is successfully established.

Specifically, UE-Proxy2 replys Create Proxy Response to MME, and expression is successfully established, And address corresponding to business of carrying and tunnel information.

S713, MME notify eNB2 handover success.

MME replys Path Switch Request Acknowledge to eNB2, represents UE-Proxy2 switching Success, and carry address corresponding to business upstream data and tunnel information.So far between UE and App Server Data all forwarded by eNB2 and UE-Proxy2, between specially UE and eNB2 B-1/B-2 between A-1/A-2, eNB2 and UE-Proxy2, UE-Proxy2 and C-1/C-2 between Server-Proxy1/Server-Proxy2, and keep constant D-1/d-2 between Server-Proxy1/Server-Proxy2 and App Server1/App Server2.

S714, MME control UE-Proxy1 and delete contextual information.

MME waits that UE-Proxy1, by complete for data cached biography rear (typically can arrange an intervalometer), leads to Cross Delete Proxy process, delete the contextual information of UE-Proxy1.

S715, eNB2 delete contextual information.

ENB2 waits after eNB1 data inverse-transmitting, typically can arrange an intervalometer or etc. to be received Finally wrap end marker to data, delete UE contextual information.

Figure 13 is the schematic diagram of the second transmitting scene of the present embodiment.In the present embodiment, primary nodal point is Terminal (is referred to as " UE " in the present embodiment), and the first gateway node is that terminal agent equipment is (in the present embodiment It is referred to as " UE-AP "), the second gateway node is that server agent facility (is referred to as in the present embodiment " Server-Proxy "), secondary nodal point is server (being referred to as " APP Server " in the present embodiment), In addition, also include controller (Controlor), be used for dispatching and controlling UE and UE-Proxy.Phase Than the function distributing of eNB or focus and UE-Proxy in scene described in Fig. 9 at same node, such as eNB Or focus can be on the basis of local out (LBO), the LIPA/SIPTOG of such as wifi network or LTE Dispose the function of UE-Proxy on the basis of function, be referred to as UE-AP.UE is by eating dishes without rice or wine Uu interface even Meet UE-AP, UE-AP to be connected with Server-Proxy by C-P interface.App Server then passes through C-B interface is connected with Server-Proxy.Above-mentioned interface is connected can also in the way of setting up end-to-end tunnel By the way of end-to-end route, the data made a start are sent to specify node.

Further, the stack architecture of the present embodiment can be as shown in figure 14.UE and UE-AP in the present embodiment Between set up the connection of point-to-point, if between UE-AP and UE being the Uu interface using LTE, then Connection between the two is otherwise known as radio bearer.In the connection procedure of UE and UE-AP, UE-AP is UE distributes an IP address.It addition, App Server is the application server on a Internet, and its generation Connection between reason Server-Proxy is by the way of arranging route.UE-Proxy and Server-Proxy Between can according to configuration set up connect and keep；Can also be according to the business demand of UE, dynamic and App Server-Proxy corresponding for Server sets up and connects.To UE nontransparent mode, between UE and UE-Proxy (optionally passing through eNB) can be consulted need to access App Server, as UE indicates the App needing to access The domain name (e.g.www.google.com) of Server or address (e.g.110.238.2.38), UE-Proxy The corresponding relation between App Server and Server-Proxy according to configuration, selects Server-Proxy.Right UE transparent mode, UE directly transmits packet to UE-Proxy, UE-Proxy according to IP number in packet According to the domain name in packet header or HTTP packet header, know that UE needs the App Server accessed, search correspondence Server-Proxy。

On this basis, Figure 15 is the schematic flow sheet of a kind of access procedure that the embodiment of the present invention provides, should Method is the illustration to method described in Fig. 4 and Fig. 6, may include that

S801, UE set up the connection with UE-AP

Specifically, UE passes through RRC process, sets up space interface signaling in resident community and corresponding UE-AP Connect, the signaling special in order to transmit UE.

S802, UE pass through UE-AP registered network.

Specifically, UE asks Attach by UE-AP to Controller, middle through safe mistakes such as authentications Cheng Hou, Controller agree to the request of UE, and may require that UE-AP and UE sets up nothing by Controller Line Deta bearer, and to UE distribution local IP (or being distributed to UE by UE-AP).Controller It is probably isolated node or merges into a node with UE-AP.Owing to UE-AP is as radio node, can Distributed can be deployed in regional, therefore safety may be poor, and operator may want to dispose one Centralized safe Controller is used for managing numerous UE-AP.The deployment of UE-AP and Controller unification Relatively being suitable for and dispose with domestic or enterprise's market deployment, user needs cost-effective such as eating dishes without rice or wine to use non-awarding The UE-AP of power frequency range, and need not dispose multiple node.To UE-AP and Controller in subsequent descriptions The scene of unification, that can skip between UE-AP and Controller is mutual, realizes because belonging to inside Journey.

S803, UE send the packet pointing to App Server1.

Specifically, UE desires access to App Server1, is carried by wireless data, with local IP as source Address, App Server1IP is destination address, sends packet to UE-AP.

S804, UE-AP search corresponding Server-Proxy1.

Specifically, UE-AP according to destination address, check whether existing correspondence tunnel or The configuration of Server-Proxy.If had, it is sent in the Server-Proxy of correspondence by connection.If Not having this to need the connection between newly-built and Server-Proxy, UE-AP sets up to Controller request Server-Proxy connects, and carries destination address or wishes that the Server-Proxy mark connected is (logical Cross and look into destination address and Server-Proxy corresponding relation and obtain), and self address and tunnel Configuration, the information such as local IP.

S805, Controller notify Server-Proxy1 relevant information.

Specifically, Controller transmission Create Tunnel Request is corresponding to corresponding App Server1 Server-Proxy1, wherein carries the information such as UE-AP address and tunnel configuration, local IP.

S806, Server-Proxy1 are that UE distributes Remote IP1.

Specifically, after Server-Proxy1 receives Create Tunnel Request, it is this UE in its IP pond Distribution Remote IP1 address, and set up tunnel corresponding to UE, and send Create Tunnel Response Notice Controller, and preserve remote IP1, UE-AP and the corresponding relation in corresponding tunnel.

S807, Controller notify UE-AP relevant information.

Specifically, the information notice UE-AP that Server-Proxy is returned by Controller.

The address information of packet is changed by S808, UE-AP.

Specifically, UE-AP preserves tunnel address information and the UE remote IP1 of Server-Proxy1 distribution. And the data of UE are carried out local IP and the conversion of remote IP1.App Server is issued for receiving UE Data, the source address in IP head is converted to destination address from local IP by UE-AP The remote IP1 of corresponding Server-Proxy1 distribution.For being sent to the data of UE from App Server, Destination address in IP head is converted to local IP from remote IP1 by UE-AP.So far UE and Two-way data communication can be carried out between App Server.

S809, UE send the packet pointing to App Server2.

Specifically, UE desires access to App Server2, is carried by wireless data, with local IP as source Address, App Server2IP is destination address, sends packet to UE-AP.

S810, UE-AP search corresponding Server-Proxy2.

S811, Controller notify Server-Proxy2 relevant information.

S812, Server-Proxy2 are that UE distributes Remote IP2.

Specifically, after Server-Proxy2 receives Create Tunnel Request, it is this UE in its IP pond Distribution Remote IP2 address, and set up tunnel corresponding to UE, and send Create Tunnel Response Notice Controller, and preserve remote IP1, UE-AP and the corresponding relation in corresponding tunnel.

S813, Controller notify UE-AP relevant information.

The address information of packet is changed by S814, UE-AP.

Specifically, UE-AP preserves tunnel address information and the UE remote IP2 of Server-Proxy2 distribution. And the data of UE are carried out local IP and the conversion of remote IP2.App Server is issued for receiving UE Data, the source address in IP head is converted to destination address from local IP by UE-AP The remote IP2 of corresponding Server-Proxy2 distribution.For being sent to the data of UE from App Server, Destination address in IP head is converted to local IP from remote IP1 by UE-AP.So far UE and Two-way data communication can be carried out between App Server.

Correspondingly, Figure 16 is the schematic flow sheet of the second handoff procedure that the embodiment of the present invention provides, the party Method is the illustration to method described in Fig. 8.Describe for simplifying, in the present embodiment only with UE-AP and As a example by Controller functional unification.In the present embodiment, it is assumed that UE is initially accessed UE-AP1, simultaneously and App Server1 and App Server2 carries out business, agency corresponding respectively be Server-Proxy1 and Server-Proxy2.User face data a-1, a-2 between UE and UE-AP represent；UE-AP1 and User face data c-1, c-2 between Server-Proxy1, Server-Proxy2 represent；Server-Proxy1、 User face data d-1, d-2 between Server-Proxy2 and App Server1, App Server2 represent.

S901, UE1 connect Server1 by UE-AP1 and Server Proxy1, and transmit data.

Wherein, Server-Proxy1 is assigned with remote IP1, UE-AP1 to UE and is assigned with local IP to UE, Server-Proxy2 is assigned with remote IP2 to UE.UE-AP1 is the number between UE and App Server1 According to doing the conversion of local IP to remote IP1, or Server-Proxy2 is between UE and App Server2 Data do the conversion of local IP to remote IP2.

S902, UE1 connect Server2 by UE-AP2 and Server Proxy2, and transmit data.

The signal quality of S903, UE detection UE-AP1 and UE-AP2.

Specifically, UE moves to UE-AP2 cell boarder, according to UE-AP1 in community from UE-AP1 It is handed down to the measurement configuration of UE, when meeting measurement report condition, as under UE-AP2, UE-AP1 is compared in community During big 3 dB of received signal strength of lower community, UE reporting measurement reports is to UE-AP1.

S904, UE-AP1 initiate UE-AP1 and UE-AP2 handoff procedure to UE.

Specifically, UE-AP1 receives measurement report, according to variable structure contorl, it is determined that UE should switch Going down in the community higher to signal, in the present embodiment, UE-AP1 judges that UE should be switched in UE-AP2, Therefore UE-AP1 and UE-AP2 handoff procedure is initiated.The present embodiment by X2 switch as a example by, UE-AP1 and Believed by the context of handover request and handover response message exchange UE between UE-AP2 Breath, local IP information, the configuration information of Server-Proxy1/Server-Proxy2, including address information, tunnel Road information, remote IP1/IP2 information, the address of UE-AP1 and tunnel information, and accurate at UE-AP2 Get the good switching command of corresponding resource distribution ready and set up the anti-pass tunnel between UE-AP 1 to UE-AP 2 Deng work, switching period UE-AP1 and fail to be sent to the data of UE for transmission.UE-AP2 after completing Handover response is to UE-AP1 in transmission, wherein comprises switching command.

S905, UE switching is connected to UE-AP2.

Specifically, UE-AP1, is referred to terminal by RRC Reconfiguration message transmission switching command Showing that terminal is switched to district in the community under eNB2, terminal leaves cell-of-origin after receiving.UE-AP1 can start To UE-AP2 anti-pass data, SN status transfer can be sent by UE-AP1 to UE-AP2, accuse Know data receiver situation last for UE, in order to subsequent transmissions in UE-AP2.

S906, UE notice UE-AP2 has switched.

Specifically, UE accesses in new community, send RRC reconfiguration complete message to UE-AP2, represents that handoff procedure of eating dishes without rice or wine completes.

S907, UE-AP2 initiate to connect makeover process to Sever-Proxy1.

Specifically, UE-AP2 initiates Proxy Connection Modification process to Server-Proxy1, The data of amendment Server-Proxy1 are changed into and are issued UE-AP2 from issuing UE-AP1.

S908, UE-AP2 initiate to connect makeover process to Sever-Proxy2.

Specifically, UE-AP2 also initiates Proxy Connection Modification mistake to Server-Proxy2 Journey, the data of amendment Server-Proxy2 are changed into and are issued UE-AP2 from issuing UE-AP1.

S909, UE connect Server1 by UE-AP2 and Server Proxy1.

S910, UE connect Server2 by UE-AP2 and Server Proxy2.

Figure 17 is the schematic diagram of the third transmitting scene of the present embodiment.In the present embodiment, primary nodal point is Terminal (is referred to as " UE " in the present embodiment), and the first gateway node is that terminal agent equipment is (in the present embodiment It is referred to as " UE-Proxy "), secondary nodal point is server (being referred to as " APP Server " in the present embodiment), Second gateway node (being referred to as " Server-Proxy " in the present embodiment) is built in described server.

Figure 18 is the schematic diagram of three (a) kind stack architecture of the present embodiment, and in the present embodiment, UE-AP can With by tunnel direct-connected App Server, when UE-AP changes, can notify that App Server changes tunnel, Thus keep the business continuance of UE.

Figure 19 is the schematic diagram of three (b) kind stack architecture of the present embodiment, the present embodiment and the difference of Figure 15 It is that 802.11 (i.e. 1Wifi) agreement that UE and UE-AP eats dishes without rice or wine to use connects, UE-AP and Server-Proxy Between, shown use CAPWAP is the same with GTP-U, is another kind of tunnel protocol.Server-Proxy Between also by a kind of point-to-point connection protocol connect (such as PPP, VPN agreement) connect App Server, figure Embodiment described in 9 and Figure 13, is to connect Server-Proxy by routing mode App-Server, so Need to revise local IP to remote IP in order to the data of UE route to Server-Proxy, UE, in order to When App Server sends data to UE by remote IP, Server-Proxy can be routed to.But, this Implement by connection protocol set up designated lane direct-connected App Server and Server-Proxy, App Server and Data between Server-Proxy need not move through route can lead directly to (identical with tunnel), it is to avoid amendment Process to remote IP.Shortcoming is that App Server can only service the user from Server-Proxy, Some network interface on special server, or same station server can be disposed during actual deployment, or The virtual network interface of person is connected with Server-Proxy, and other servers or other interfaces can also service Come from the user outside Server-Proxy.

Figure 20 is the schematic diagram of the 4th kind of transmitting scene that the embodiment of the present invention provides.In the present embodiment, One node is server (being referred to as " APP Server " in the present embodiment), and the first gateway node is server generation Reason equipment (is referred to as " Server-Proxy " in the present embodiment), and the second gateway node is terminal agent equipment (this Embodiment is referred to as " UE-Proxy "), secondary nodal point is terminal (being referred to as " UE " in the present embodiment). In the present embodiment, the primary nodal point of movement is APP Server, and the most possible reason is between APP Server Carry out Load Balanced, as too high in server 1CPU or EMS memory occupation, by the data of part terminal from service Device 1 goes to server 2 and processes.Server user 1 connected is transferred to server 2 from server 1, whole The IP address keeping server for terminal 1 during individual is constant, and can be by synchronizing between server For the contextual information of this terminal on server, thus the change of server is invisible for terminal 1 Or transparent, and business is not interrupted during server is changed.

On this basis, Figure 21 is the schematic flow sheet of a kind of handoff procedure that the embodiment of the present invention provides, should Method is the illustration to method described in Fig. 8.As it can be seen, terminal from always for agent equipment 1 move to Terminal agent equipment 2, process, as shown in above-described embodiment, repeats no more.Now server 2 may be from terminal The transmission range of equipment closer to, server 2 service be likely more properly, server agent facility or road The server of service terminal can be triggered from server 1 to the transition process of server 2 by management node.Tool Body flow process may include that

S1001 server agent facility 1 or routing management node can be consulted server with server 1 and cut Change.If agreeing to perform agent equipment handoff procedure by server agent facility 1.

The contextual information of associated server is transferred to server agent and sets by S1002 server agent facility 1 Standby 2.Terminal can be sent to the data of server 1 and be transmitted to server 2, to end by guarantee server agent 2 Need not change the IP address of server for end, so that it is guaranteed that the seriality of IP.Server agent facility The data that terminal is sent by terminal agent 2 are all forwarded to server agent facility 2 by 1, and server 2 prepares Good have server agent facility to cache before.

S1003 server agent facility 1 indicates server 1 to carry out server and switches to server 2.

The business contexts information that APP is relevant can be forwarded to new server 2 by S1004 server 1, Make the terminal can be original including the link information (TCP connects configuration information, business state information) of terminal Continue on service schedule, it is ensured that the seriality of business.If do not forwarded business contexts relevant for APP, service Device 1 notifies the address information of server 2 terminal, it may be necessary to terminal retransmits service connection request.

S1005 server 2 notifies that server agent facility 2 carries out route handoff after being ready to.Now service Terminal is sent to the data cached of server agent 1 and is sent to server 2 by device agent equipment.

S1006 server agent facility 2 notify terminal agent equipment 2 by data stream by original server generation Reason equipment 1 goes to server agent facility 2.It is forwarded to server 2 again by server agent facility 2.

The present embodiment describes, and when App Server changes, still can keep business continuance, i.e. UE is invisible.May be generally employed at App Server and carry out load balancing, or when UE moves, change To from UE closer to the scene of App Server (such as CDN server), shorter to obtain more preferable resource The more preferable Consumer's Experience of time delay.

Figure 22 is the schematic diagram of five (a) kind transmitting scene of the present embodiment, in the present embodiment, first Node is terminal (in the present embodiment be referred to as " UE "), and the first gateway node is terminal agent equipment and built-in In terminal, secondary nodal point is server (being referred to as " APP Server " in the present embodiment), the second gateway node For server agent facility (being referred to as " Server-Proxy " in the present embodiment).The Main change of this enforcement exists Cause in the first gateway node built-in terminal, built-in for the second gateway node or be not built in server Scene is equally applicable.Terminal connects the second gateway node by machine log equipment (can be base station or AP) And server.Owing to first gateway node of the present embodiment is built in terminal, therefore when terminal moves, the One gateway is followed terminal and is moved, and therefore terminal need not change the first gateway node.

Access node sets up the connection between access network equipment, and by authenticating and completing registration.Concrete mistake Journey can reuse existing 2G/3G/4G (seeing embodiment above) and the nothing of following possible 5G system Line access procedure.On this basis, Figure 23 is that the flow process of a kind of access procedure that the embodiment of the present invention provides is shown Being intended to, the method is the illustration to method described in Fig. 4 and Fig. 6, may include that

S1101, terminal sets up the connection between access network equipment.

Specifically, with 4G network insertion process illustrate, UE by RRC (Radio Resource Control, Radio resource control) process, set up space interface signaling in resident community and corresponding eNB and connect, use With the signaling that transmission UE is special.

S1102, UE pass through eNB registered network.

S1103, eNB are UE registered network to centerized fusion device or MME.

S1104, MME authentication process.

S1105, MME are that UE selects UE-Proxy.Specifically, if authenticating successfully, MME selects UE-Proxy, initiates Create Proxy Request.In the present embodiment, UE-Proxy is built in UE.UE can To carry the information of UE-Proxy in above-mentioned access procedure in the signaling (such as S1102) so that MME Select built-in UE-Proxy.Create Proxy Request can carry various signings and the authority information of UE, For assisting UE-Proxy to be UE assignment of home address (local IP).

S1106, UE-Proxy are that UE distributes local IP.

S1107, MME and eNB set up connection.

The message of S1108, eNB just MME configuration local IP is sent to UE.

S1109, UE send the packet pointing to server 1 (App Server1).

Specifically, if UE desires access to App Server1, by user plane bearer of eating dishes without rice or wine, with local IP it is Source address (source address) sends data to UE-Proxy.

S1110, UE-Proxy search corresponding server agent facility 1 (Server-Proxy1).

Specifically, after UE-Proxy receives packet, search corresponding service according to destination address Server-Proxy1 acted on behalf of by device.And search correspondence UE whether have been set up correspondence UE-Proxy and Connection between Server-Proxy1, if there being execution step S1113.

S1110 is without corresponding server agent, and terminal agent equipment is data cached, to controller or The server agent facility that person MME inquiry is corresponding.The data that controller or MME report according to terminal agent Bag feature (such as the protocol header of packet) determines server and server agent facility.And by its correspondence Identification information or address information return to terminal agent equipment.

S1111 terminal agent initiates Create Tunnel Request.

S1112Server-Proxy1 is UE assignment agent address 1 (Remote IP1).

The address information of packet is changed by S1113, UE-Proxy.

S1114, UE send the packet pointing to server 2 (App Server2).

Specifically, if UE desires access to App Server2, by user plane bearer of eating dishes without rice or wine, with local IP it is Source address (source address) sends packet by eNB to UE-Proxy.It is right that UE-Proxy searches The server agent facility 2 (Server-Proxy2) answered.Specifically, after UE-Proxy receives packet, root Corresponding server agent Server-Proxy2 is searched according to destination address.And search the UE of correspondence Whether have been set up the connection between UE-Proxy and Server-Proxy2 of correspondence, if there being execution step S1118。

S1115 is if it did not, terminal agent equipment is data cached, the same with S1110, to controller or The server agent facility that MME inquiry is corresponding.The packet that controller or MME report according to terminal agent Feature (such as the protocol header of packet) determines server and server agent facility.And by the mark of its correspondence Knowledge information or address information return to terminal agent equipment.

S1116 terminal agent equipment initiates Create Tunnel Request.

S1117Server-Proxy2 is UE assignment agent address 2 (Remote IP2).

The source address of packet is changed by S1117, UE-Proxy.

Correspondingly, Figure 24 is the schematic flow sheet of the first handoff procedure that the embodiment of the present invention provides, the party Method is the illustration to method described in Fig. 8, in the present embodiment, it is assumed that UE and built-in terminal agent equipment The initial base station 1 (eNB1) connected, simultaneously with server 1 (App Server1) and server 2 (App Server2) transmission business, App Server1 and App Server2 corresponding server agent equipment 1 respectively And server agent sets 2 (Server-Proxy2) (Server-Proxy1).Wherein, UE and terminal unit User face data a-1, a-2 between agency represent；User face number between terminal unit agency and eNB Represent according to b-1, b-2；User face data between eNB1 and Server-Proxy1, Server-Proxy2 is used C-1, c-2 represent；Between Server-Proxy1, Server-Proxy2 and App Server1, App Server2 User face data d-1, d-2 represent.Wherein, Server-Proxy1 and Server-Proxy2 gives respectively UE is assigned with remote IP1 and remote IP2, and terminal unit is acted on behalf of and is assigned with local IP to UE.Terminal Proxy for equipment issues the data of App Server for receiving UE, and terminal unit is acted on behalf of the source in IP head Address is converted to the remote of Server-Proxy2 distribution corresponding for destination address from local IP IP2.For being sent to the packet of UE from App Server, terminal unit is acted on behalf of in IP head Destination address is converted to local IP from remote IP2.So far can between UE and App Server To carry out two-way data communication.

The signal quality of S1201, UE detection eNB1 and eNB2.

S1202, eNB1 initiate eNB1 and eNB2 handoff procedure to UE.

Specifically, eNB receives measurement report, according to variable structure contorl, it is determined that UE should be switched to letter Going down in number higher community, in the present embodiment, eNB1 judges that UE should be switched to eNB2, therefore initiates eNB1 With eNB2 handoff procedure.In LTE, switching is divided into S1 switching and X2 to switch, and the present embodiment switches to X2 Example, by handover request and handover response message exchange UE between eNB1 and eNB2 Contextual information, the address of UE-Proxy and Server-Proxy1/2 and tunnel information, and at eNB2 Get out the works such as the good switching command of corresponding resource distribution and the anti-pass tunnel of setting up between eNB1 to eNB2 Make, switching period eNB1 and fail to be sent to the data of UE for transmission.

S1203, sends switching command to UE

Data are transferred to eNB2 by eNB1.Specifically, eNB1 send SN status transfer to eNB2, Instruction is eventually transferred to the PDCP SN of UE, continues and terminal for the continue data of PDCP of eNB2 Transmission, for not having transmission success, by consulting re-transmission between eNB2 and UE.Owing to UE has been moved off Community under eNB1, so Server-Proxy1 and Server-Proxy2 issues c-1's and c-2 of eNB1 Downlink data c-1-D and c-2-D cannot be sent to UE, the anti-pass set up here by step S1202 Tunnel, is sent to eNB2 by eNB1, is represented by F-1-D and F-2-D, and eNB2 can cache this part number According to, until UE is then forwarded to UE after being successfully connected.

S1204, UE1 and terminal unit agency connect Server1 with Server Proxy1 respectively by eNB2, Server Proxy2 connects Server2, and transmits data.

Specifically, the new community of instruction in UE search switching command, Bing Yugai community synchronizes, by switching Stochastic accessing is initiated in Stochastic accessing configuration in order to this community, after success, sends RRC Reconfiguration Complete message, notice eNB2 completes switching.So far UE with eNB2 has become Merit sets up the radio bearer eated dishes without rice or wine.Down direction, the data that App Server1/App Server2 sends D-1-D/d-2-D to Server-Proxy1/Server-Proxy2, then acts on behalf of and is transmitted to by c-1-D/c-2-D F-1-D/F-2-D is sent to eNB2, eNB2 by anti-pass tunnel and anti-pass is come by eNB1, eNB1 Data are sent to terminal unit agency at empty port load-supporting B-1-D, B-2-D, and terminal unit agency become through address Change commanders B-1-D, and B-2-D is transformed to a-1-D and a-2-D.Up direction, UE sends to terminal unit agency A-1-U and a-2-U, terminal unit sends B-1-U and B-2-U, eNB2 for by empty port load-supporting to eNB2 The address tunnel information of the Server-Proxy1/2 according to S1202 step, sends C-1-U/C-2-U and is sent to Sever-Proxy1/Server-Proxy2, Sever-Proxy1/Server-Proxy2 are being route by d-1-U/d-2-U To App-Server1/App-Server2.If S1202 does not notify the address of eNB2Server-Proxy1/2 Tunnel information, then eNB2 caches all upstream datas.

S1205, eNB2 withdraw from forwarding.

Specifically, eNB2 sends Path Switch message to MME, it is desirable to Server-Proxy1/2 will The downlink data of C-1-D/C-2-D is sent directly to eNB2, it is to avoid forward from eNB1.

Downlink data is sent to eNB2 by S1207/1208, MME notice Server-Proxy1/2. D-1-D and d-2-D that App Server sends is passed through by Server-Proxy1 and Server-Proxy2 respectively C-1-D and C-2-D is sent to eNB2, eNB2 by eating dishes without rice or wine to be sent to terminal by B-1-D and B-2-D Proxy for equipment, terminal unit agency is sent to terminal a-1-D and a-2-D after address is changed.

UE and terminal unit agency transmit data by eNB2 respectively at Server Proxy1 Yu Server1, Data are transmitted with Server Proxy2 Yu Server2.

Server Proxy1 and Server Proxy2 notice MME success.

S1209, MME notify eNB2 handover success.

MME replys Path Switch Request Acknowledge to eNB2, represents App-Proxy1/2 Handover success, and carry address corresponding to business upstream data and tunnel information.If S1204 walks eNB2 The upstream data of caching terminal, the most now can be sent to App-Proxy1/2 by the data cached of correspondence, enter And it is sent to the App-Server of correspondence.So far the data between UE and App Server are all set by terminal Standby agency, eNB2 and App-Proxy forwards

S1210, eNB2 control eNB1 and delete contextual information.

When address translation feature processes at Server-Proxy, said process is also consistent.

Figure 25 is the schematic diagram that five (b) that the present embodiment provides plants transmitting scene.When the first gateway node When being built in terminal, terminal and the first net gateway node can carry out communication by internal interface, it might even be possible to The function of terminal and the first gateway being realized by same program, terminal can obtain the first gateway joint very easily The terminal context information of point, therefore, the present embodiment embodiment relative to Figure 22, difference is terminal Directly there is the function of the first gateway node.Terminal and first will be had following for the convenience on describing simultaneously This node of gateway node function is referred to as access node.

On this basis, Figure 26 is the schematic flow sheet of a kind of access procedure that the embodiment of the present invention provides, should Method is the illustration to method described in Fig. 4 and Fig. 6, may include that

S1301, access node sets up the connection between access network equipment.

Specifically, with 4G network insertion process illustrate, UE by RRC (Radio Resource Control, Radio resource control) process, set up space interface signaling in resident community and corresponding eNB and connect, use With the signaling that transmission UE is special.This step can be reused above-mentioned and that other are similar wireless technology foundation and be eated dishes without rice or wine The process connected.

S1302, access node is registered by access network equipment.

Specifically, access network equipment connects transmission registration request by eating dishes without rice or wine, and registers network.

S1303, access network equipment sends registration request to centerized fusion device.

Specifically, eNB can be similar in LTE system by Initial UE Message and carry UE and send out The Attach Request message sent is to MME.

S1304, centerized fusion authentication process.

Specifically, before being similar to LTE system MME process Attach Request, need by authentication process, Differentiate whether both sides' node is trusted node.And produce the relevant information such as AES and key for follow-up Security process.If passed through, then can carry out follow-up signaling procedure between access node and controller.Optional Access node and controller between set up a default transport path.

S1305, when access node to carry out communication with server, has first detected built-in access node the most And server and and the server agent of its correspondence between set up incidence relation.Without then needing to control Device processed is asked, and selects the server agent that server is corresponding, assignment agent address, and passes through server agent Connection Service device.

Access node can be to controller node initiating business request, and access node please to controller by signaling Ask the service or server needing to access.Access node can by indicate COS, service provider's information, Service identity information, service domain name or URL information (such as www.youtube.com or Www.myvideo.com/service/portal1), address of service information (such as IP address information 10.238.2.38) Deng the server confirming to need to access for controller node.

Or access node can use default ip address on the temporary default transmission path in S1304 step to make For source address, it would be desirable to the packet sending server is sent to controller.Controller is by packet Feature identification (in IP data packet head or HTTP packet header in packet), confirms the service needing to connect Device and corresponding server agent facility.

Controller is by information (such as identification information, address information) corresponding to server or server agent facility It is sent to access node.

Between information and corresponding with service that S1306, access node preservation server or server agent facility are corresponding Binding relationship.Access node and corresponding server agent facility establish a connection, and distribute remote IP1, Using this IP is IP address when access node and the mutual communication of this server, and by server agent node Communication is carried out with server.

S1307, alternatively possible embodiment, similar S1305 process, access node access node is permissible The packet sending server will be needed to be sent to control to controller node initiating business request or access node Device processed, carries information consistent with S1305.Controller selected server and the server agent facility of correspondence.

S1308 controller needs and server agent facility configures or consults, as consulted whether receive This access node, may need to select a new server node if can not receive.Or the need to Set up relevant transmission configuration, need server agent facility to set up corresponding transmission configuration, such as transmission tunnel Configuration or configuration information, also include the remote IP2 distributing to access node, return to controller Node.

The result notice access node that server or server agent are selected by S1309 controller, in order to access Node carries out communication by shown result and corresponding server and its server agent node.Access node makes It is IP address when access node and the mutual communication of this server with this remote IP2,

Correspondingly, Figure 27 is the schematic flow sheet of the first handoff procedure that the embodiment of the present invention provides, when the When one gateway node is built in terminal, terminal and the first net gateway node can carry out communication by internal interface, Even can the function of terminal and the first gateway be realized by same program, therefore terminal can obtain very easily Take the terminal context information of the first gateway node.Following for describe on convenience by have simultaneously terminal and This node of first gateway function is referred to as access node.Assume the access network equipment that access node initially connects 1, transmit business, App Server1 with server 1 (App Server1) and server 2 (App Server2) simultaneously 2 are set with App Server2 corresponding server agent equipment 1 (Server-Proxy1) and server agent respectively (Server-Proxy2).Wherein, user face data b-1 between access node and access network equipment 1, B-2 represents；User face data between access network equipment 1 and Server-Proxy1, Server-Proxy2 is used C-1, c-2 represent；Between Server-Proxy1, Server-Proxy2 and App Server1, App Server2 User face data d-1, d-2 represent.Wherein, Server-Proxy1 and Server-Proxy2 is connect respectively Ingress is assigned with remote IP1 and remote IP2.Access node uses remote IP1 and remote respectively IP2 carries out communication with server 1 and server 2.

S1401, access node detection access network equipment 1 and the signal quality of access network equipment 2.

Specifically, as a example by LTE, UE moves to eNB2 cell boarder in community from eNB1, according to ENB1 is handed down to the measurement configuration of UE, when meeting measurement report condition, as under eNB2, eNB1 is compared in community During big 3 dB of received signal strength of lower community, UE reporting measurement reports is to eNB1.

S1402, access network equipment 1 is initiated access node and was switched from access network equipment 1 and access network equipment 2 Journey.

Specifically, as a example by LTE, eNB receives measurement report, according to variable structure contorl, it is determined that UE Going down in the community that should be switched to signal higher, in the present embodiment, eNB1 judges that UE should be switched to eNB2, Therefore eNB1 and eNB2 handoff procedure is initiated.In LTE, switching is divided into S1 switching and X2 to switch, this reality Execute example as a example by X2 switches, by handover request and handover between eNB1 and eNB2 The contextual information of response message exchange UE, the address of Server-Proxy1/2 and tunnel information, and The good switching command of corresponding resource distribution and the anti-pass setting up between eNB1 to eNB2 is got out at eNB2 The work such as tunnel, are switching period eNB1 and fail to be sent to the data of UE for transmission.

S1403, access node receives switching command

Specifically, as a example by LTE, eNB1 sends switching command by RRC Reconfiguration message To terminal, instruction terminal is switched to district in the community under eNB2, and UE leaves former community after receiving.

S1404, access node connects Server1 with Server Proxy1 respectively by access network equipment 2, Server Proxy2 connects Server2, and transmits data.

Specifically, as a example by LTE, the new community of instruction in UE search switching command, Bing Yugai community is carried out Synchronize, configure by the Stochastic accessing in switching command and initiate Stochastic accessing to this community, after success, send RRC Reconfiguration Complete message, notice eNB2 completes switching.So far UE with eNB2 has become Merit sets up the radio bearer eated dishes without rice or wine.Down direction, the data that App Server1/App Server2 sends D-1-D/d-2-D to Server-Proxy1/Server-Proxy2, then acts on behalf of and is transmitted to by c-1-D/c-2-D F-1-D/F-2-D is sent to eNB2, eNB2 by anti-pass tunnel and anti-pass is come by eNB1, eNB1 Data are sent to UE at empty port load-supporting B-1-D, B-2-D.Up direction, UE passes through empty port load-supporting to eNB2 Sending B-1-U and B-2-U, eNB2 can be according to the tunnel, address of the Server-Proxy1/2 of S1402 step Information, sends C-1-U/C-2-U and is sent to Sever-Proxy1/Server-Proxy2, Sever-Proxy1/Server-Proxy2 is being routed to App-Server1/App-Server2 by d-1-U/d-2-U. If S1402 does not notify the address tunnel information of eNB2Server-Proxy1/2, then eNB2 caching is all Upstream data.

S1405, forwarding withdrawn from by access network equipment 2.

Specifically, as a example by LTE, eNB2 sends Path Switch message to MME, it is desirable to The downlink data of C-1-D/C-2-D is sent directly to eNB2 by Server-Proxy1/2, it is to avoid turn from eNB1 Send out.

S1406/1407, downlink data is sent to access network equipment 2. by controller notice server agent.

Specifically, as a example by LTE, downlink data is sent to eNB2 by MME notice Server-Proxy1/2. D-1-D and d-2-D that App Server sends is passed through by Server-Proxy1 and Server-Proxy2 respectively C-1-D and C-2-D is sent to eNB2, eNB2 by eating dishes without rice or wine to be sent to UE by B-1-D and B-2-D.

UE transmits data, and Server Proxy2 by eNB2 respectively at Server Proxy1 Yu Server1 Data are transmitted with Server2.

Server Proxy1 and Server Proxy2 notice MME success.

S1408, controller notice access network equipment 2 handover success.

Specifically, as a example by LTE, MME replys Path Switch Request Acknowledge to eNB2, Represent App-Proxy1/2 handover success, and carry address corresponding to business upstream data and tunnel information.As Really the upstream data of S1404 step eNB2 caching terminal, the most now can be sent to the data cached of correspondence App-Proxy1/2, and then it is sent to the App-Server of correspondence.So far the number between UE and App Server According to all being forwarded by eNB2 and App-Proxy

S1409, access network equipment 2 controls access network equipment 1 and deletes contextual information.

Specifically, as a example by LTE, after eNB2 waits eNB1 data inverse-transmitting, typically can arrange one Individual intervalometer or wait receive data and finally wrap end marker, delete UE contextual information.

In above-mentioned the present embodiment, can equally be well applied to when the second gateway node (is referred to as in the present embodiment " Server-Proxy ") it is built in the scene of described server.

Therefore, in the embodiment of the present invention, the first gateway node is built in primary nodal point so that first segment Point can obtain the terminal context information of the first gateway node very easily.Even primary nodal point and the first net The function of articulare realizes by same program, can directly use remote IP.Can avoid local IP and Mutual transformation process between remote IP, primary nodal point and secondary nodal point can directly use the end of correspondence to arrive End IP address carry out communication, it is to avoid some need directly use end-to-end IP address service agreement (as Session Initiation Protocol) because middle address translation feature, the problem that can use.

Figure 28 is the structural representation of a kind of gateway node that first embodiment of the invention provides, this gateway node For realizing the associative operation of the first gateway node in Fig. 4.Gateway in embodiment of the present invention joint as shown in the figure Point at least can include saving point selection module 110, agent address acquisition module 120, source address modular converter 130 And packet sending module 140, wherein:

Joint point selection module 110, for request selecting the second gateway node according to primary nodal point, so that described Primary nodal point connects secondary nodal point by this gateway node and described second gateway node.

Alternatively, save point selection module 110, specifically for: obtain the packet that primary nodal point sends, described The destination address of packet is the network address of secondary nodal point；Destination address according to described packet selects the Two gateway nodes.

The most alternatively, save point selection module 110, specifically for: obtain the demand signalling that primary nodal point sends, Described demand signalling carries the information of instruction the second gateway node；First gateway node is according to described request letter Order selects the second gateway node.

Agent address acquisition module 120, is the distribution of described primary nodal point for obtaining described second gateway node Agent address.

Source address modular converter 130, for sending the source address of the packet come by described by described primary nodal point The local address of primary nodal point is converted to described agent address；

Packet sending module 140, for the packet after conversion is sent extremely described second gateway node, with Described second gateway node is made to send it to described secondary nodal point.

Referring to Figure 28, gateway node as depicted can also include address assignment module 150, is used for When determining the unallocated local address of described primary nodal point, for described primary nodal point assignment of home address.

Referring to Figure 28, gateway node as depicted can also include that connection judgment module 160 and request are sent out Send module 170, wherein:

Connection judgment module 160, is used for judging whether set up between this gateway node and described second gateway node There is connection；

Request sending module 170, for judging this gateway node and described second net in described connection judgment module When not set up connection between articulare, send connection establishment request to described second gateway node, so that institute State the second gateway node to be connected with the foundation of this gateway node, and be described primary nodal point assignment agent address.

Referring to Figure 28, gateway node as depicted can also include packet acquisition module 180, obtains The packet that described primary nodal point sends.

Referring to Figure 28, gateway node as depicted can also include information sending module 190, for working as Described primary nodal point is when this gateway node switches to another gateway node, by the context of described primary nodal point Information sends to another gateway node described, and described contextual information includes the local address of described primary nodal point With the identification information of described second gateway node so that another gateway node described is according to described contextual information Identify described primary nodal point and determine described second gateway node, so make described primary nodal point by described separately One gateway node and described second gateway node connect described secondary nodal point, and send number to described secondary nodal point According to bag.

Figure 29 is the structural representation of the another kind of gateway node that first embodiment of the invention provides, and this gateway saves Point is for realizing the associative operation of the first gateway node in Fig. 5.Gateway in the embodiment of the present invention as shown in the figure Node at least can include saving point selection module 210 and packet sending module 220, wherein:

Joint point selection module 210, for request selecting the second gateway node according to primary nodal point, so that described Primary nodal point connects secondary nodal point by this gateway node and described second gateway node.

Alternatively, save point selection module 210, specifically for: obtain the packet that primary nodal point sends, described The destination address of packet is the network address of secondary nodal point；Destination address according to described packet selects the Two gateway nodes.

The most alternatively, save point selection module 210, specifically for: obtain the demand signalling that primary nodal point sends, Described demand signalling carries the information of instruction the second gateway node；First gateway node is according to described request letter Order selects the second gateway node.

Packet sending module 220, sends to described second for described primary nodal point sends the packet come Gateway node, so that after described second gateway node is described primary nodal point assignment agent address, by described number Described agent address is converted to by the local address of described primary nodal point according to the source address of bag, and by after conversion Packet sends to described secondary nodal point.

Referring to Figure 29, gateway node as depicted can also include address assignment module 230, is used for When determining the unallocated local address of described primary nodal point, for described primary nodal point assignment of home address.

Referring to Figure 29, gateway node as depicted can also include that connection judgment module 240 and request are sent out Send module 250, wherein:

Connection judgment module 240, is used for judging whether set up between this gateway node and described second gateway node There is connection；

Request sending module 250, for judging this gateway node and described second net in described connection judgment module When not set up connection between articulare, send connection establishment request to described second gateway node, so that institute State the second gateway node to be connected with the foundation of this gateway node, and be described primary nodal point assignment agent address.

Referring to Figure 29, gateway node as depicted can also include packet acquisition module 260, be used for Obtain the packet that described primary nodal point sends.

Referring to Figure 29, gateway node as depicted can also include information sending module 270, for working as Described primary nodal point is when this gateway node switches to another gateway node, by the context of described primary nodal point Information sends to another gateway node described, and described contextual information includes the local address of described primary nodal point With the identification information of described second gateway node so that another gateway node described is according to described contextual information Identify described primary nodal point and determine described second gateway node, so make described primary nodal point by described separately One gateway node and described second gateway node connect described secondary nodal point, and send number to described secondary nodal point According to bag.

Figure 30 is the structural representation of another gateway node that first embodiment of the invention provides, and this gateway saves Point is for realizing the associative operation of the second gateway node in Fig. 5.Gateway in the embodiment of the present invention as shown in the figure Node at least can include packet acquisition module 310, source address modular converter 320 and packet sending module 330, wherein:

Packet acquisition module 310, sends, by the first gateway node, the data of coming for obtaining primary nodal point Bag.

Source address modular converter 320, for by the source address of described packet by described primary nodal point locally Location is converted to agent address.

Packet sending module 330, for sending the packet after conversion to secondary nodal point.

Referring to Figure 30, gateway node as depicted can also include that acquisition request module 340 and connection are built Formwork erection block 350, wherein:

Acquisition request module 340, the connection establishment request come for obtaining described first gateway node to send；

Connection establishment module 350, is connected for setting up with described first gateway node, and is described primary nodal point Distribute described agent address.

Figure 31 is the structural representation of a kind of gateway node that second embodiment of the invention provides, this gateway node For realizing the associative operation of the first gateway node in Fig. 6.Gateway in embodiment of the present invention joint as shown in the figure Point at least can include saving point selection module 410, agent address acquisition module 420, destination address modular converter 430 and packet sending module 440, wherein:

Joint point selection module 410, for request selecting the second gateway node according to primary nodal point, so that described Primary nodal point connects secondary nodal point by this gateway node and described second gateway node.

Alternatively, save point selection module 410, specifically for: obtain the packet that primary nodal point sends, described The destination address of packet is the network address of secondary nodal point；Destination address according to described packet selects the Two gateway nodes.

The most alternatively, save point selection module 410, specifically for: obtain the demand signalling that primary nodal point sends, Described demand signalling carries the information of instruction the second gateway node；First gateway node is according to described request letter Order selects the second gateway node.

Agent address acquisition module 420, for obtaining the local address of described primary nodal point.

Destination address modular converter 430, for sending by described second gateway node by described secondary nodal point The destination address of packet be converted to described local address by the agent address of described primary nodal point.

Packet sending module 440, for sending the packet after conversion to described primary nodal point.

Referring to Figure 31, gateway node as depicted can also include address assignment module 450, is used for When determining the unallocated local address of described primary nodal point, for described primary nodal point assignment of home address.

Referring to Figure 31, gateway node as depicted can also include that connection judgment module 460 and request are sent out Send module 470, wherein:

Connection judgment module 460, is used for judging whether set up between this gateway node and described second gateway node There is connection；

Request sending module 470, for judging this gateway node and described second net in described connection judgment module When not set up connection between articulare, send connection establishment request to described second gateway node, so that institute State the second gateway node to be connected with the foundation of this gateway node, and be described primary nodal point assignment agent address.

Referring to Figure 31, gateway node as depicted can also include packet acquisition module 480, be used for Obtain the packet that described primary nodal point sends.

Referring to Figure 31, gateway node as depicted can also include information sending module 490, for working as Described primary nodal point is when this gateway node switches to another gateway node, and this gateway node is by described first segment The contextual information of point sends to another gateway node described, and described contextual information includes described primary nodal point Local address and the identification information of described second gateway node so that another gateway node described is according to described Primary nodal point described in contextual information identification and determine described second gateway node, and then make described primary nodal point Connect described secondary nodal point by another gateway node described and described second gateway node, and obtain described the The packet that two nodes are sent by described second gateway node.

Figure 32 is the structural representation of the another kind of gateway node that second embodiment of the invention provides, and this gateway saves Point is for realizing the associative operation of the first gateway node in Fig. 7.Gateway in the embodiment of the present invention as shown in the figure Node at least can include saving point selection module 510, packet acquisition module 520 and packet sending module 530, wherein:

Joint point selection module 510, for request selecting the second gateway node according to primary nodal point, so that described Primary nodal point connects secondary nodal point by this gateway node and described second gateway node.

Alternatively, save point selection module 510, specifically for: obtain the packet that primary nodal point sends, described The destination address of packet is the network address of secondary nodal point；Destination address according to described packet selects the Two gateway nodes.

The most alternatively, save point selection module 510, specifically for: obtain the demand signalling that primary nodal point sends, Described demand signalling carries the information of instruction the second gateway node；First gateway node is according to described request letter Order selects the second gateway node.

Packet acquisition module 520, is used for obtaining described secondary nodal point and sends by described second gateway node Packet, the destination address of described packet by described second gateway node by the agency of described primary nodal point Address is converted to described local address.Alternatively, described packet acquisition module 520, it is additionally operable to acquisition described The packet that primary nodal point sends.

Packet sending module 530, for sending described packet to described primary nodal point.

Referring to Figure 32, gateway node as depicted can also include address assignment module 540, is used for When determining the unallocated local address of described primary nodal point, for described primary nodal point assignment of home address.

Referring to Figure 32, gateway node as depicted can also include that connection judgment module 550 and request are sent out Send module 560, wherein:

Connection judgment module 550, is used for judging whether set up between this gateway node and described second gateway node There is connection；

Request sending module 560, for judging this gateway node and described second net in described connection judgment module When not set up connection between articulare, send connection establishment request to described second gateway node, so that institute State the second gateway node to be connected with the foundation of this gateway node, and be described primary nodal point assignment agent address.

Referring to Figure 32, gateway node as depicted can also include information sending module 570, for working as Described primary nodal point is when this gateway node switches to another gateway node, and this gateway node is by described first segment The contextual information of point sends to another gateway node described, and described contextual information includes described primary nodal point Local address and the identification information of described second gateway node so that another gateway node described is according to described Primary nodal point described in contextual information identification and determine described second gateway node, and then make described primary nodal point Connect described secondary nodal point by another gateway node described and described second gateway node, and obtain described the The packet that two nodes are sent by described second gateway node.

Figure 33 is the structural representation of another gateway node that first embodiment of the invention provides, and this gateway saves Point is for realizing the associative operation of the second gateway node in Fig. 7.Gateway in the embodiment of the present invention as shown in the figure Node at least can include that packet acquisition module 610, destination address modular converter 620 and packet send mould Block 630, wherein:

Packet acquisition module 610, sends, for obtaining secondary nodal point, the packet of coming；

Destination address modular converter 620, for by the destination address of described packet by primary nodal point vicariously Location is converted to local address；

Packet sending module 630, for the packet after conversion is sent to the first gateway node, so that institute State the first gateway node and send it to described primary nodal point.

Referring to Figure 33, gateway node as depicted can also include that acquisition request module 640 and connection are built Formwork erection block 650, wherein:

Acquisition request module 640, the connection establishment request come for obtaining described first gateway node to send；

Connection establishment module 650, is connected for setting up with described first gateway node, and is described primary nodal point Distribute described agent address.

Figure 34 is the structural representation of a kind of node that third embodiment of the invention provides, and this node is used for realizing The associative operation of primary nodal point in Fig. 7.Node in the embodiment of the present invention at least can include as shown in the figure One transport module 710, connection handover module 720 and the second transport module 730, wherein:

First transport module 710, for connecting secondary nodal point by former first gateway node and the second gateway node And carry out data transmission with secondary nodal point.

Connect handover module 720, for this node when switching is connected to new first gateway node, disconnect and institute State the connection between former first gateway node.During implementing, connecting handover module 720 can be such as figure Quality measurement unit 721, quality uploading unit 722 and connection switching unit 723 is farther included shown in 34, Wherein:

Quality measurement unit 721, for measuring described former first gateway node and described new first gateway joint respectively The signal quality of point；

Quality uploading unit 722, for being better than described former at the signal quality determining described new first gateway node During the first gateway node, report to described former first gateway node, so that described former first gateway node is to this Node sends instruction switching command；

Connection switching unit 723, is used for receiving described switching command, and connects according to the switching of described switching command To described new first gateway node, and disconnect the connection between described former first gateway node.

Second transport module 730, for connecting by described new first gateway node and described second gateway node Described secondary nodal point also carries out data transmission with described secondary nodal point.

Figure 35 is the structural representation of a kind of gateway node that the present invention provides, as shown in figure 35, this gateway Node may include that at least one processor 701, such as CPU, at least one communication interface 703, storage Device 704, at least one communication bus 702.Wherein, communication bus 702 is for realizing between these assemblies Connect communication.Memorizer 704 can be high-speed RAM memorizer, it is also possible to be non-volatile memorizer (non-volatile memory), for example, at least one disk memory.Optionally, memorizer 704 also may be used Being that at least one is located remotely from the storage device of aforementioned processor 701.Memorizer 704 stores program Code.Wherein:

When the first gateway node during this gateway node is Fig. 4, processor 701 calls in memorizer 704 Program perform the associative operation of this first gateway node.

When the first gateway node during this gateway node is Fig. 5, processor 701 calls in memorizer 704 Program perform the associative operation of this first gateway node.

When the second gateway node during this gateway node is Fig. 5, processor 701 calls in memorizer 704 Program perform the associative operation of this first gateway node.

When the first gateway node during this gateway node is Fig. 6, processor 701 calls in memorizer 704 Program perform the associative operation of this first gateway node.

When the first gateway node during this gateway node is Fig. 7, processor 701 calls in memorizer 704 Program perform the associative operation of this first gateway node.

When the second gateway node during this gateway node is Fig. 7, processor 701 calls in memorizer 704 Program perform the associative operation of this first gateway node.

Figure 36 is the structural representation of a kind of node that the present invention provides, and as shown in figure 36, this node is permissible Including: at least one processor 801, such as CPU, at least one antenna port 803, memorizer 804, At least one communication bus 802.Wherein, communication bus 802 is for realizing the connection communication between these assemblies. Memorizer 804 can be high-speed RAM memorizer, it is also possible to be non-volatile memorizer (non-volatile Memory), for example, at least one disk memory.Optionally, memorizer 804 can also is that at least one It is located remotely from the storage device of aforementioned processor 801.Memorizer 804 stores batch processing code, and place Reason device 801, for calling the program code of storage in memorizer 804, is used for performing following operation:

Connect secondary nodal point by former first gateway node and the second gateway node and carry out data with secondary nodal point Transmission；

When switching is connected to new first gateway node, disconnect the connection between described former first gateway node；

Described secondary nodal point is connected and with described by described new first gateway node and described second gateway node Secondary nodal point carries out data transmission.

One of ordinary skill in the art will appreciate that all or part of flow process realizing in above-described embodiment method, Can be by computer program and complete to instruct relevant hardware, described program can be stored in a calculating In machine read/write memory medium, this program is upon execution, it may include such as the flow process of the embodiment of above-mentioned each method. Wherein, described storage medium can be magnetic disc, CD, read-only store-memory body (Read-Only Memory, Or random store-memory body (Random Access Memory, RAM) etc. ROM).

Above disclosed be only present pre-ferred embodiments, certainly can not with this limit the present invention it Interest field, the equivalent variations therefore made according to the claims in the present invention, still belong to the scope that the present invention is contained.

Claims

1. the method for an internodal data transmission, it is characterised in that described method includes:

2. the method for claim 1, it is characterised in that described first gateway node is according to first segment Request selecting second gateway node of point, including:

3. the method for claim 1, it is characterised in that described first gateway node is according to first segment Request selecting second gateway node of point, including:

4. the method for claim 1, it is characterised in that described first gateway node is according to first segment Before request selecting second gateway node of point, also include:

5. the method for claim 1, it is characterised in that described first gateway node is according to first segment After request selecting second gateway node of point, also include:

6. the method for claim 1, it is characterised in that described method also includes:

7. method as claimed in claim 6, it is characterised in that described contextual information also includes described the The agent address of one node, so that described primary nodal point is sent the data of coming by another first gateway node described The source address of bag is converted to described agent address by the local address of described primary nodal point.

8. the method as described in any one of claim 1-7, it is characterised in that described primary nodal point includes end End, described first gateway node includes that base station and terminal agent equipment, described second gateway node include service Device agent equipment, described secondary nodal point includes server.

9. the method as described in any one of claim 1-7, it is characterised in that described primary nodal point includes end End, described first gateway node includes that terminal agent equipment, described second gateway node include server agent Equipment, described secondary nodal point includes server.

10. the method as described in any one of claim 1-7, it is characterised in that described primary nodal point includes end End, described first gateway node includes that terminal agent equipment, described secondary nodal point include server, described the Two gateway nodes are built in described server.

11. methods as described in any one of claim 1-7, it is characterised in that described primary nodal point includes clothes Business device, described first gateway node includes that server agent facility, described second gateway node include terminal generation Reason equipment, described secondary nodal point includes terminal.

12. methods as described in any one of claim 1-7, it is characterised in that described primary nodal point includes end End, described first gateway node is built in described terminal, and described second gateway node includes that server agent sets Standby, described secondary nodal point includes server.

The method of 13. 1 kinds of internodal data transmission, it is characterised in that described method includes:

14. methods as claimed in claim 13, it is characterised in that described first gateway node is according to first Request selecting second gateway node of node, including:

15. methods as claimed in claim 13, it is characterised in that described first gateway node is according to first Request selecting second gateway node of node, including:

16. methods as claimed in claim 13, it is characterised in that described first gateway node is according to first Before request selecting second gateway node of node, also include:

17. methods as claimed in claim 13, it is characterised in that described first gateway node is according to first After request selecting second gateway node of node, also include:

18. methods as claimed in claim 13, it is characterised in that described method also includes:

19. methods as described in any one of claim 13-18, it is characterised in that described primary nodal point includes Terminal, described first gateway node includes that base station and terminal agent equipment, described second gateway node include clothes Business device agent equipment, described secondary nodal point includes server.

20. methods as described in any one of claim 13-18, it is characterised in that described primary nodal point includes Terminal, described first gateway node includes that terminal agent equipment, described second gateway node include server generation Reason equipment, described secondary nodal point includes server.

21. methods as described in any one of claim 13-18, it is characterised in that described primary nodal point includes Terminal, described first gateway node includes terminal agent equipment, and described secondary nodal point includes server, described Second gateway node is built in described server.

22. methods as described in any one of claim 13-18, it is characterised in that described primary nodal point includes Server, described first gateway node includes that server agent facility, described second gateway node include terminal Agent equipment, described secondary nodal point includes terminal.

23. methods as described in any one of claim 13-18, it is characterised in that described primary nodal point includes Terminal, described first gateway node is built in described terminal, and described second gateway node includes server agent Equipment, described secondary nodal point includes server.

The method of 24. 1 kinds of internodal data transmission, it is characterised in that described method includes:

25. methods as claimed in claim 24, it is characterised in that described primary nodal point is connected in switching During new first gateway node, disconnect the connection between described former first gateway node, including:

26. methods as claimed in claim 24, it is characterised in that described primary nodal point is by described new the One gateway node and described second gateway node connect described secondary nodal point and carry out data with described secondary nodal point Before transmission, also include:

27. methods as described in any one of claim 24-26, it is characterised in that described primary nodal point includes Terminal, described first gateway node includes that base station and terminal agent equipment, described second gateway node include clothes Business device agent equipment, described secondary nodal point includes server.

28. methods as described in any one of claim 24-26, it is characterised in that described primary nodal point includes Terminal, described first gateway node includes that terminal agent equipment, described second gateway node include server generation Reason equipment, described secondary nodal point includes server.

29. methods as described in any one of claim 24-26, it is characterised in that described primary nodal point includes Terminal, described first gateway node includes terminal agent equipment, and described secondary nodal point includes server, described Second gateway node is built in described server.

30. methods as described in any one of claim 24-26, it is characterised in that described primary nodal point includes Server, described first gateway node includes that server agent facility, described second gateway node include terminal Agent equipment, described secondary nodal point includes terminal.

31. methods as described in any one of claim 24-26, it is characterised in that described primary nodal point includes Terminal, described first gateway node is built in described terminal, and described second gateway node includes server agent Equipment, described secondary nodal point includes server.

32. 1 kinds of gateway nodes, it is characterised in that described gateway node includes:

33. gateway nodes as claimed in claim 32, it is characterised in that described joint point selection module, tool Body is used for:

34. gateway nodes as claimed in claim 32, it is characterised in that described joint point selection module, tool Body is used for:

Obtaining the demand signalling that primary nodal point sends, described demand signalling carries instruction the second gateway node Information；Node selects unit, for selecting the second gateway node according to described demand signalling.

35. gateway nodes as claimed in claim 32, it is characterised in that described gateway node also includes:

36. gateway nodes as claimed in claim 32, it is characterised in that described gateway node also includes:

37. gateway nodes as claimed in claim 32, it is characterised in that described gateway node also includes:

38. gateway nodes as claimed in claim 37, it is characterised in that described contextual information also includes The agent address of described primary nodal point, so that described primary nodal point is sent the number of coming by another gateway node described Described agent address is converted to by the local address of described primary nodal point according to the source address of bag.

39. the gateway node as described in any one of claim 32-38, it is characterised in that described primary nodal point Including terminal, this gateway node includes that base station and terminal agent equipment, described second gateway node include service Device agent equipment, described secondary nodal point includes server.

40. gateway nodes as described in any one of claim 32-38, it is characterised in that described primary nodal point Including terminal, this gateway node includes that terminal agent equipment, described second gateway node include server agent Equipment, described secondary nodal point includes server.

41. gateway nodes as described in any one of claim 32-38, it is characterised in that described primary nodal point Including terminal, this gateway node includes that terminal agent equipment, described secondary nodal point include server, described Two gateway nodes are built in described server.

42. gateway nodes as described in any one of claim 32-38, it is characterised in that described primary nodal point Including server, this gateway node includes that server agent facility, described second gateway node include terminal generation Reason equipment, described secondary nodal point includes terminal.

43. gateway nodes as described in any one of claim 32-38, it is characterised in that described primary nodal point Including terminal, described first gateway node is built in described terminal, and described second gateway node includes server Agent equipment, described secondary nodal point includes server.

44. 1 kinds of gateway nodes, it is characterised in that described gateway node includes:

Agent address acquisition module, for obtaining the local address of described primary nodal point；

Destination address modular converter, for come described secondary nodal point by described second gateway node transmission The destination address of packet is converted to described local address by the agent address of described primary nodal point；

45. gateway nodes as claimed in claim 44, it is characterised in that described joint point selection module, tool Body is used for:

46. gateway nodes as claimed in claim 44, it is characterised in that described joint point selection module, tool Body is used for:

47. gateway nodes as claimed in claim 44, it is characterised in that described gateway node also includes:

48. gateway nodes as claimed in claim 44, it is characterised in that described gateway node also includes:

49. gateway nodes as claimed in claim 44, it is characterised in that described gateway node also includes:

50. gateway nodes as described in any one of claim 44-49, it is characterised in that described primary nodal point Including terminal, this gateway node includes that base station and terminal agent equipment, described second gateway node include service Device agent equipment, described secondary nodal point includes server.

51. the gateway node as described in any one of claim 44-49, it is characterised in that described primary nodal point Including terminal, this gateway node includes that terminal agent equipment, described second gateway node include server agent Equipment, described secondary nodal point includes server.

52. gateway nodes as described in any one of claim 44-49, it is characterised in that described primary nodal point Including terminal, this gateway node includes that terminal agent equipment, described secondary nodal point include server, described Two gateway nodes are built in described server.

53. gateway nodes as described in any one of claim 44-49, it is characterised in that described primary nodal point Including server, this gateway node includes that server agent facility, described second gateway node include terminal generation Reason equipment, described secondary nodal point includes terminal.

54. gateway nodes as described in any one of claim 44-49, it is characterised in that described primary nodal point Including terminal, described first gateway node is built in described terminal, and described second gateway node includes server Agent equipment, described secondary nodal point includes server.

55. 1 kinds of nodes, it is characterised in that described node includes:

56. nodes as claimed in claim 55, it is characterised in that described connection handover module includes:

Quality measurement unit, for measuring described former first gateway node and described new first gateway node respectively Signal quality；

Quality uploading unit, for being better than described former the at the signal quality determining described new first gateway node During one gateway node, report to described former first gateway node, so that described former first gateway node is to this section Point sends instruction switching command；

Connection switching unit, is used for receiving described switching command, and is connected to according to the switching of described switching command Described new first gateway node, and disconnect the connection between described former first gateway node.

57. nodes as claimed in claim 55, it is characterised in that described second transport module, specifically use In sending path integration request to upper strata, so that the second gateway node described in top level control is set up and described new the Connection between one gateway node.

58. nodes as described in any one of claim 55-57, it is characterised in that described node includes end End, described first gateway node includes that base station and terminal agent equipment, described second gateway node include service Device agent equipment, described secondary nodal point includes server.

59. nodes as described in any one of claim 55-57, it is characterised in that described node includes end End, described first gateway node includes that terminal agent equipment, described second gateway node include server agent Equipment, described secondary nodal point includes server.

60. nodes as described in any one of claim 55-57, it is characterised in that described node includes end End, described first gateway node includes that terminal agent equipment, described secondary nodal point include server, described the Two gateway nodes are built in described server.

61. nodes as described in any one of claim 55-57, it is characterised in that described node includes clothes Business device, described first gateway node includes that server agent facility, described second gateway node include terminal generation Reason equipment, described secondary nodal point includes terminal.

62. nodes as described in any one of claim 55-57, it is characterised in that described primary nodal point includes Terminal, described first gateway node is built in described terminal, and described second gateway node includes server agent Equipment, described secondary nodal point includes server.