CN105874765B

CN105874765B - A kind of method, apparatus and system of mobile management

Info

Publication number: CN105874765B
Application number: CN201480033994.5A
Authority: CN
Inventors: 靳维生
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2014-11-04
Filing date: 2014-11-04
Publication date: 2019-05-21
Anticipated expiration: 2034-11-04
Also published as: WO2016070339A1; CN105874765A

Abstract

The embodiment of the present invention provides the method, apparatus and system of a kind of mobile management, is related to the communications field, can guarantee the business continuance between user equipment and Correspondent Node.The specific scheme is that user equipment establishes the first subflow and third subflow, when user equipment switches from first base station to the second base station, user equipment is communicated by first base station with Correspondent Node using third subflow, and cancel the first subflow, when the second gateway and the first gateway are not same gateways, user equipment obtains the second IP address, and establishes the second subflow with Correspondent Node, user equipment cancels the second subflow, and user equipment receives downlink data in Idle state.The present invention is for the mobile management in wireless network.

Description

A kind of method, apparatus and system of mobile management

Technical field

The present invention relates to the communications field more particularly to the method, apparatus and system of a kind of mobile management.

Background technique

Current development communication technologies go out various access technologies, for example the 2G/3G/4G of cellular network accesses skill Art, WLAN (Wireless Local Area Networks, WLAN) access technology, intelligent acess technology and bluetooth Access technology etc..It can integrate a variety of access technologies in a communication terminal, how efficiently using communication terminal, (such as user is whole End) in various access technologies to promote communication efficiency and user experience be one of current techniques hot spot.

In the technology for realizing multiple access, MPTCP (Multi-Path Transmission Control Protocol, multi-path transmission control protocol) technology be development comparative maturity one kind, can be with packet distribution by a variety of The access of access technology is transmitted between user terminal and network.In TCP (Transmission Control Protocol, transmission control protocol)/IP (Internet Protocol, Internet protocol) protocol stack architecture socket Between (socket) and TCP layer, increases MPTCP layers, be responsible for managing multiple sub- TCP modules by it.Communicating pair can be used not With address pair, establish TCP subflow connection, these TCP subflows can in the transmission over networks of one or more access technology, MPTCP layers are responsible for selection to the subpackage group packet of business data flow, routing and scheduling.Each subflow is by association and manages a plurality of TCP subflow, concurrently-transmitted data improve bandwidth availability ratio and transmission performance, and socket and application layer do not have to be concerned about transmission services The specific TCP subflow of data flow.

Under single access technology, such as cellular network, when the side in communicating pair moves in cellular networks, if Its IP address changes, then the TCP connection of communicating pair is caused to be interrupted, it cannot be guaranteed that the business continuance of user equipment.

Summary of the invention

The embodiment of the present invention provides a kind of method, apparatus of mobile management and system can guarantee the industry of user equipment Business continuity.

In order to achieve the above objectives, the embodiment of the present invention adopts the following technical scheme that

In a first aspect, a kind of mobility management systems, comprising: user equipment, first base station, the second base station, the first gateway, Second gateway, core network gateway and Correspondent Node, the user equipment are led to by the first subflow and the Correspondent Node Letter, first subflow are the son that the user equipment is established using the first internetworking protocol IP address and the Correspondent Node Stream, first IP address be first gateway be the user equipment distribution IP address, first gateway with it is described First base station connection,

The user equipment, for making when the user equipment switches from the first base station to second base station It is communicated by the first base station with the Correspondent Node with third subflow, and cancels first subflow, the third Subflow is the subflow that the user equipment is established using third IP address and the Correspondent Node, and the third IP address is described Core network gateway is the IP address of user equipment distribution, the core network gateway and the first base station and described second Base station connection；

The user equipment is also used to after first subflow is cancelled, and passes through described second using the third subflow Base station is communicated with the Correspondent Node；

The user equipment is also used to obtain second when second gateway and first gateway are not same gateways IP address, and the second subflow is established with the Correspondent Node, second IP address is that second gateway is that the user sets The IP address that back-up is matched, second subflow are that the user equipment is established using second IP address and the Correspondent Node Subflow, second gateway connect with second base station.

With reference to first aspect, in the first possible implementation,

Before the user equipment is communicated by first subflow with the Correspondent Node, when the user sets When the standby data traffic between the Correspondent Node is more than preset threshold, the user equipment, with being also used to obtain the first IP Location, and the first subflow is established with the Correspondent Node；

Before the user equipment is from the first base station to second base station switching or the user equipment makes Before being communicated by the first base station with the Correspondent Node with the third subflow, the user equipment is also used to Third IP address is obtained, and establishes third subflow with the Correspondent Node.

With reference to first aspect, in the second possible implementation,

The user equipment is also used to after first subflow cancels, and discharges first IP address, and to described First gateway sends the instruction message for discharging first IP address；

First gateway, in the instruction message for receiving release first IP address that the user equipment is sent Afterwards, first IP address is discharged.

With reference to first aspect, in the third possible implementation,

It is described to obtain the second IP address when second gateway and first gateway are not same gateways, comprising:

When the user equipment is connect with first base station, the first gateway identification that the first base station is sent, institute are received It states the first gateway identification and is used to indicate first gateway；

When the user equipment switches from the first base station to second base station, receives second base station and send The second gateway identification, second gateway identification is used to indicate second gateway；

If second gateway identification is different from first gateway identification, the user equipment is to second net The request message for sending and obtaining IP address is closed, and receives second IP address that second gateway is sent.

With reference to first aspect, in the fourth possible implementation,

The mobility management systems further include mobility management entity, and the mobility management entity is described for managing Second base station and second gateway, it is described to obtain second when second gateway and first gateway are not same gateways IP address, comprising:

When the user equipment switches from the first base station to second base station, the user equipment is by described One IP address or the first gateway identification are sent to the mobility management entity, and first gateway identification is used to indicate described First gateway；

The mobility management entity determines that first IP address whether be second gateway is the user equipment Whether the IP address of distribution or first gateway identification are identical as the second gateway identification, and second gateway identification is used for Indicate second gateway；

If first IP address is not the IP address or described that second gateway is user equipment distribution First gateway identification is different from second gateway identification, then the mobility management entity to second gateway be the use Family equipment application distributes IP address, and will be sent to the user from received second IP address of second gateway and set It is standby.

With reference to first aspect, in a fifth possible implementation,

When the user equipment switches from the first base station to second base station, the user equipment is by the second net It closes mark and is sent to the first base station, second gateway identification is used to indicate second gateway；

If second gateway identification is different from the first gateway identification, the first base station is sent out to the user equipment Judgement instruction message is sent, first gateway identification is used to indicate first gateway, and the judgement instruction message is used to indicate Second gateway and first gateway are not same gateways；

The user equipment sends to second gateway after receiving the judgement instruction message and obtains asking for IP address Message is sought, and receives second IP address that second gateway is sent.

With reference to first aspect, in a sixth possible implementation,

After second subflow foundation, when the data traffic between the user equipment and the Correspondent Node is less than in advance If when threshold value, the user equipment is also used to cancel second subflow.

With reference to first aspect, in the 7th kind of possible implementation,

The mobility management systems further include mobility management entity, and the mobility management entity is described for managing Second base station and second gateway；

After second subflow foundation, when the data traffic between the user equipment and the Correspondent Node is less than in advance If when threshold value, the mobility management entity is used to indicate the user equipment and cancels second subflow；

The user equipment is also used to cancel second subflow.

7th kind of possible implementation of the 6th kind of possible implementation or first aspect with reference to first aspect, In the 8th kind of possible implementation,

The user equipment is also used to after cancelling second subflow, discharges second IP address, and described in instruction Second gateway discharges second IP address；

Second gateway, for discharging second IP address.

With reference to first aspect, in the 9th kind of possible implementation,

After second subflow foundation, when the data traffic between the user equipment and the Correspondent Node is less than in advance If when threshold value, second base station is used to indicate the user equipment and cancels second subflow, and indicates second gateway Discharge second IP address；

The user equipment is also used to cancel second subflow, and discharges second IP address；

Second gateway, for discharging second IP address.

The 9th kind of possible implementation with reference to first aspect, in the tenth kind of possible implementation,

The user equipment is also used to after the user equipment discharges second IP address, into Idle state；

The core network gateway, for caching the lower line number of the user equipment after the user equipment enters Idle state According to, and send to the mobility management entity downlink data notification of the user equipment；

The mobility management entity is also used to receive the lower line number for the user equipment that the core network gateway is sent According to notice, and page the user equipment；

The user equipment is also used to respond the paging of the mobility management entity.

The tenth kind of possible implementation with reference to first aspect, in a kind of the tenth possible implementation,

The mobility management entity, be also used to the user device responsive page after indicate the core network gateway to The user equipment sends downlink data；

The core network gateway is also used to send downlink data to the user equipment.

With reference to first aspect, in the 12nd kind of possible implementation,

The mobility management systems further include: mobility management entity, online charging system OCS and strategy and charging Rule functional PCRF,

The mobility management entity, for obtaining the available amount of the user equipment from the line charge system, and The available amount of the user equipment is sent to first gateway；

The mobility management entity is also used to obtain the meter of the user equipment from the "Policy and Charging Rules Function Take rule, and the charging regulation of the user equipment is sent to first gateway；

First gateway is also used to be communicated by first subflow with the Correspondent Node when user equipment When, it is reduced according to available amount of the charging regulation of the user equipment to the user equipment, and to online charging system System sends the available credit balance of the user equipment.

With reference to first aspect, in the 13rd kind of possible implementation,

The mobility management systems further include: mobility management entity and off-line accounting system OFCS,

First gateway is also used to send the user equipment in first gateway to the mobility management entity Ticket；

The mobility management entity, by the user equipment is singly sent to if first gateway it is offline based on Charge system.

Second aspect, a kind of mobility management systems, comprising: user equipment, first base station, the second base station, the first gateway, Second gateway, core network gateway and Correspondent Node, the user equipment are led to by the first subflow and the Correspondent Node Letter, it is the user equipment and described logical that first subflow, which is the first base station using the first internetworking protocol IP address, Believe the subflow that opposite end is established, first IP address is the IP address that first gateway is user equipment distribution, described First gateway is connect with the first base station,

The user equipment, for making when the user equipment switches from the first base station to second base station It is communicated by the first base station with the Correspondent Node with third subflow, the third subflow is that the first base station makes The subflow established with third IP address and the Correspondent Node, the third IP address are that the core network gateway is the user The IP address of equipment distribution, the core network gateway are connect with the first base station and second base station；

The first base station is also used to cancel first subflow；

Second base station, for obtaining the 2nd IP when second gateway and first gateway are not same gateways Address, and the second subflow is established for the user equipment and the Correspondent Node, second IP address is second gateway For the IP address of user equipment distribution, it is described that second subflow, which is second base station using second IP address, The subflow that user equipment and the Correspondent Node are established, second gateway are connect with second base station.

In conjunction with second aspect, in the first possible implementation, pass through first subflow in the user equipment Before being communicated with the Correspondent Node, when the data traffic between the user equipment and the Correspondent Node is more than default When threshold value, the first base station is also used to obtain the first IP address, and establishes for the user equipment and the Correspondent Node One subflow；

Before the user equipment is from the first base station to second base station switching or the user equipment makes Before being communicated by the first base station with the Correspondent Node with the third subflow, the first base station is also used to Third IP address is obtained, and establishes third subflow for the user equipment and the Correspondent Node.

In conjunction with second aspect, in the second possible implementation,

The first base station is also used to after first subflow cancels, and discharges first IP address, and to described First gateway sends the instruction message for discharging first IP address；

First gateway, in the instruction message for receiving release first IP address that the first base station is sent Afterwards, first IP address is discharged.

In conjunction with second aspect, in the third possible implementation,

When the user equipment switches from the first base station to second base station, when first gateway with it is described When second gateway is not unified gateway, the first base station, which is also used to send the first subflow to second base station, acts on behalf of Proxy Context, the context of first subflow agency includes at least at least one of following information:

Subflow between the first base station and the Correspondent Node acts on behalf of layer sequence number, for example, token Token, first base The address of the sequence number for first subflow stood between the Correspondent Node, first subflow identifies Address ID, Subflow between the first base station and the Correspondent Node is acted on behalf of between layer sequence number, for example and transmission control protocol TCP layer sequence number, for example Mapping relations, the TCP sequence number between first subflow agency and the user equipment.

In conjunction with second aspect, in the fourth possible implementation,

After second subflow foundation, when the data traffic between the user equipment and the Correspondent Node is less than in advance If when threshold value, second base station is also used to cancel second subflow.

In conjunction with the 4th kind of possible implementation of second aspect, in a fifth possible implementation,

Second base station is also used to after cancelling second subflow, discharges second IP address, and described in instruction Second gateway discharges second IP address；

Second gateway, for discharging second IP address.

In conjunction with second aspect, in a sixth possible implementation,

After second subflow foundation, when the data traffic between the user equipment and the Correspondent Node is less than in advance If when threshold value, second base station indicates second gateway with discharging the 2nd IP for cancelling second subflow Location；

Second base station is also used to discharge second IP address；

Second gateway, for discharging second IP address.

The third aspect, a kind of user equipment, comprising: multipath control unit and receiving unit, the user equipment are logical It crosses the first subflow to be communicated with Correspondent Node, first subflow is that the user equipment uses the first internetworking protocol IP The subflow that address and the Correspondent Node are established, first IP address are IP that the first gateway is user equipment distribution Location, first gateway are connect with the first base station,

The multipath control unit, for being switched when the user equipment from the first base station to second base station When, it is communicated by the first base station with the Correspondent Node using third subflow, and cancel the first subflow, the third Subflow is the subflow that the user equipment is established using third IP address and the Correspondent Node, and the third IP address is described Core network gateway is the IP address of user equipment distribution, the core network gateway and the first base station and described second Base station connection, first subflow are the subflow that the user equipment is established using the first IP address and the Correspondent Node, institute Stating the first IP address is the IP address that first gateway is user equipment distribution, first gateway and first base It stands connection；

The multipath control unit is also used to pass through institute using the third subflow after first subflow is cancelled The second base station is stated to be communicated with the Correspondent Node；

The receiving unit, for obtaining the 2nd IP when second gateway and first gateway are not same gateways Address, second IP address are the IP address that second gateway is the user equipment distribution, second gateway and institute State the connection of the second base station；

The multipath control unit, is also used to establish the second subflow with the Correspondent Node, and second subflow is institute State the subflow that user equipment is established using second IP address and the Correspondent Node.

In conjunction with the third aspect, in the first possible implementation,

Before the user equipment is communicated by first subflow with the Correspondent Node, when the user sets When the standby data traffic between the Correspondent Node is more than preset threshold, the receiving unit, with being also used to obtain the first IP Location；

The multipath control unit is also used to establish the first subflow with the Correspondent Node；

Before the user equipment is from the first base station to second base station switching or the user equipment makes Before being communicated by the first base station with the Correspondent Node with the third subflow, the receiving unit is also used to Obtain third IP address；

The multipath control unit is also used to establish third subflow with the Correspondent Node.

In conjunction with the third aspect, in the second possible implementation,

The multipath control unit is also used to after first subflow cancels, and discharges first IP address, and Generate the instruction message for discharging first IP address；

The user equipment further includes transmission unit, discharges first IP address for sending to first gateway Instruction message, in order to which first gateway discharges first IP address.

In conjunction with the third aspect, in the third possible implementation,

The receiving unit is also used to receive the first gateway identification that the first base station is sent, the first gateway mark Knowledge is used to indicate first gateway；

The receiving unit is also used to receive the second gateway identification that second base station is sent, the second gateway mark Knowledge is used to indicate second gateway；

The multipath control unit, be also used to judge second gateway identification and first gateway identification whether phase Together, if second gateway identification is different from first gateway identification, the request message for obtaining IP address is generated；

The user equipment further includes transmission unit, for sending the request for obtaining IP address to second gateway Message；

The receiving unit is also used to receive second IP address that second gateway is sent.

In conjunction with the third aspect, in the fourth possible implementation,

The user equipment further includes transmission unit,

The transmission unit is used for when the user equipment switches from the first base station to second base station, will First IP address or the first gateway identification are sent to mobility management entity, in order to the mobility management entity root Determine whether second gateway and first gateway are same gateway according to first IP address or the first gateway identification, It and when second gateway and first gateway are not same gateways is the user device applies to second gateway IP address is distributed, the user equipment, first net will be sent to from received second IP address of second gateway It closes mark and is used to indicate first gateway, the mobility management entity is for managing second base station and second net It closes；

The receiving unit is also used to receive second IP address that the mobility management entity is sent.

In conjunction with the third aspect, in a fifth possible implementation,

The user equipment further includes transmission unit, for when the user equipment is from the first base station to described second When base station switches, the second gateway identification is sent to the first base station, in order to which the first base station determines second net Whether be same gateway, second gateway identification is used to indicate second gateway if closing with first gateway；

The receiving unit, is also used to receive the judgement instruction message that the first base station is sent, and the judgement instruction disappears It is not same gateway that breath, which is used to indicate second gateway and first gateway,；

The multipath control unit is also used to generate the request message for obtaining IP address；

The transmission unit is also used to send the request message for obtaining IP address to second gateway；

In conjunction with the third aspect, in a sixth possible implementation,

After second subflow foundation, the multipath control unit is also used to determine that the user equipment leads to described Whether the data traffic between letter opposite end is less than preset threshold；

When the data traffic between the user equipment and the Correspondent Node is less than preset threshold, the multipath control Unit processed is also used to cancel second subflow, and discharges second IP address.

In conjunction with the third aspect, in the 7th kind of possible implementation,

The receiving unit is also used to receive revocation that mobility management entity or second base station are sent described the The instruction message of two subflows, the mobility management entity is for managing second base station and second gateway；

The multipath control unit is also used to receive the mobility management entity or institute in the receiving unit After the instruction message of revocation second subflow for stating the transmission of the second base station, second subflow is cancelled, and discharge described second IP address.

In conjunction with the third aspect, in the 8th kind of possible implementation,

The multipath control unit is also used to generate the instruction message for discharging second IP address；

The user equipment further includes transmission unit, for second gateway transmission release the 2nd IP The instruction message of location.

In conjunction with the 8th kind of possible implementation of the third aspect, in the 9th kind of possible implementation,

The user equipment further includes status control unit, for sending institute to second gateway in the transmission unit After stating the instruction message for discharging second IP address, controls the user equipment and enter Idle state；

The receiving unit is also used to receive the paging of the mobility management entity；

The multipath control unit, is also used to after the user equipment enters Idle state, generates page-response message；

The user equipment further includes transmission unit, is disappeared for sending the page response to the mobility management entity Breath；

The receiving unit is also used to send the page response to the mobility management entity in the user equipment After message, the downlink data of the user equipment is received from the core network gateway.

Fourth aspect, a kind of first base station, including subflow agent unit and Transmit-Receive Unit；

The Transmit-Receive Unit, for sending and receiving the data of user equipment by the first subflow, in order to user equipment It is communicated by first subflow with Correspondent Node, wherein first subflow is that the first base station uses the first net Border interconnection agreement IP address is the subflow that the user equipment and the Correspondent Node are established, and first IP address is the first net The IP address for user equipment distribution is closed, first gateway is connect with the first base station；

The Transmit-Receive Unit is also used to pass through when the user equipment switches from the first base station to the second base station Third subflow sends and receivees the data of user equipment, in order to which user equipment passes through the third subflow and the Correspondent Node It is communicated, wherein the third subflow is the son that the user equipment is established using third IP address and the Correspondent Node Stream, the third IP address be the core network gateway be the user equipment distribution IP address, the core network gateway with The first base station and second base station connection；

The subflow agent unit, for cancelling first subflow.

In conjunction with fourth aspect, in the first possible implementation,

The Transmit-Receive Unit, the normal data packet sent specifically for receiving the user equipment are also used to receive described The first sub-stream data packet that first gateway is sent；

The subflow agent unit, specifically for the standard for receiving the Transmit-Receive Unit from the user equipment Data packet is converted to the first sub-stream data packet, be also used to receive the Transmit-Receive Unit from first gateway described in First sub-stream data packet is converted to the normal data packet；

The Transmit-Receive Unit is also used to that the resulting first sub-stream data packet will be converted by the subflow agent unit It is sent to the Correspondent Node through first gateway, is also used to that the resulting mark will be converted by the subflow agent unit Quasi- data packet is sent to the user equipment.

In conjunction with fourth aspect, in the second possible implementation,

The Transmit-Receive Unit is also used to obtain first IP address；

The subflow agent unit, is also used for first IP address and the Correspondent Node establishes first son Stream, in order to which user equipment is communicated by first subflow with the Correspondent Node；

The Transmit-Receive Unit is also used to obtain the third IP address；

The subflow agent unit, is also used for the third IP address and the Correspondent Node establishes third Stream, in order to which the user equipment is communicated by the third subflow with the Correspondent Node.

In conjunction with fourth aspect, in the possible implementation of third,

The subflow agent unit is also used to after first subflow cancels, and discharges first IP address, and raw At the instruction message for discharging first IP address；

The transmitter is also used to send the release described first that the subflow agent unit generates to first gateway The instruction message of IP address.

In conjunction with fourth aspect, in the fourth possible implementation,

The Transmit-Receive Unit is also used to when the user equipment switches from the first base station to the second base station, is received The second gateway identification that the user equipment is sent, second gateway identification are used to indicate the second gateway, second base station It is connect with second gateway；

The subflow agent unit is also used to when second gateway identification and the first gateway identification difference, and generation is sentenced Disconnected instruction message, it is not same gateway that the judgement instruction message, which is used to indicate second gateway and first gateway,；

The Transmit-Receive Unit is also used to send the judgement instruction message to the user equipment, in order to the user Equipment obtains the second IP address, and second IP address is the IP address that second gateway is the user equipment distribution.

In conjunction with the 4th kind of possible implementation of fourth aspect, in a fifth possible implementation,

When the user equipment switches from the first base station to second base station, when first gateway with it is described When second gateway is not unified gateway, the Transmit-Receive Unit is also used to send the first subflow to second base station and acts on behalf of Proxy Context, the context of first subflow agency includes at least at least one of following information:

5th aspect, a kind of motion management method, user equipment are communicated by the first subflow with Correspondent Node, institute Stating the first subflow is the subflow that the user equipment is established using the first internetworking protocol IP address and the Correspondent Node, institute Stating the first IP address is the IP address that the first gateway is user equipment distribution, and first gateway and the first base station connect It connects；

When the user equipment switches from first base station to the second base station, the user equipment is passed through using third subflow The first base station is communicated with Correspondent Node, and cancels first subflow, and the third subflow is the user equipment The subflow established using third IP address and the Correspondent Node, the third IP address are that the core network gateway is the use The IP address of family equipment distribution, the core network gateway are connect with the first base station and second base station；

After first subflow is cancelled, the user equipment using the third subflow by second base station with it is described Correspondent Node is communicated；

When second gateway and first gateway are not same gateways, the user equipment is with obtaining the 2nd IP Location, and the second subflow is established with the Correspondent Node, second IP address is that second gateway is the user equipment point The IP address matched, second subflow are the son that the user equipment is established using second IP address and the Correspondent Node Stream, second gateway are connect with second base station.

In conjunction with the 5th aspect, in the first possible implementation,

Before the user equipment is communicated by first subflow with the Correspondent Node, when the user equipment When data traffic between the Correspondent Node is more than preset threshold, the method also includes: the user equipmenies to obtain the One IP address, and the first subflow is established with the Correspondent Node；

Before the user equipment is from the first base station to second base station switching or the user equipment uses Before the third subflow is communicated by the first base station with the Correspondent Node, the method also includes: the use Family equipment obtains third IP address, and establishes third subflow with the Correspondent Node.

In conjunction with the 5th aspect, in the second possible implementation,

After the first subflow revocation, the method also includes:

The user equipment discharges first IP address, and sends to first gateway and discharge first IP address Instruction message；

First gateway is released after the instruction message for receiving release first IP address that the user equipment is sent Put first IP address.

In conjunction with the 5th aspect, in the third possible implementation,

In conjunction with the 5th aspect, in the fourth possible implementation,

When the user equipment switches from the first base station to second base station, the user equipment is by described One IP address or the first gateway identification are sent to mobility management entity, and first gateway identification is used to indicate described first Gateway, the mobility management entity is for managing second base station and second gateway；

In conjunction with the 5th aspect, in a fifth possible implementation,

The user equipment disappears after reception judges instruction message to the request that second gateway sends acquisition IP address Breath, and receive second IP address that second gateway is sent.

In conjunction with the 5th aspect, in a sixth possible implementation,

The user equipment obtains the second IP address, and after establishing the second subflow with the Correspondent Node, the method Further include:

When the data traffic transmitted by second subflow is less than preset threshold, user equipment revocation described the Two subflows.

In conjunction with the 5th aspect, in the 7th kind of possible implementation,

When the data traffic transmitted by second subflow is less than preset threshold, described in mobility management entity instruction User equipment cancels second subflow, and the mobility management entity is for managing second base station and second net It closes；

The user equipment cancels second subflow.

In conjunction with six kinds of possible implementations of the 5th aspect or seven kinds of possible implementations of the 5th aspect, the In eight kinds of possible implementations,

After the user equipment cancels second subflow, the method also includes:

The user equipment discharges second IP address, and indicates that second gateway discharges second IP address.

In conjunction with the 5th aspect, in the 9th kind of possible implementation,

When the data traffic transmitted by second subflow is less than preset threshold, second base station indicates the use Second subflow described in the device revocation of family, and indicate that second gateway discharges second IP address, the mobile management is real Body is for managing second base station and second gateway；

The user equipment cancels second subflow, and discharges second IP address；

Second gateway discharges second IP address.

In conjunction with the 9th kind of possible implementation of the 5th aspect, in the tenth kind of possible implementation, the user Second subflow described in device revocation, and after discharging second IP address, the method also includes:

The user equipment enters Idle state；

The core network gateway caches the downlink data of the user equipment after the user equipment enters Idle state, and The downlink data notification of the user equipment is sent to the mobility management entity；

The mobility management entity receives the downlink data notification for the user equipment that the core network gateway is sent, And page the user equipment；

The paging of mobility management entity described in the user device responsive.

In conjunction with the tenth kind of possible implementation of the 5th aspect, in a kind of the tenth possible implementation, the use After family equipment responds the paging of the mobility management entity, the method also includes:

The mobility management entity indicates the core network gateway to the use after user device responsive paging Family equipment sends downlink data.

In conjunction with the 5th aspect, in the 12nd kind of possible implementation, the method also includes:

Mobility management entity obtains the available amount of the user equipment from online charging system OCS, and by the use The available amount of family equipment is sent to first gateway；

The mobility management entity obtains the charging regulation of the user equipment from "Policy and Charging Rules Function PCRF, And the charging regulation of the user equipment is sent to first gateway；

First gateway is when user equipment is communicated by first subflow with the Correspondent Node, according to institute The charging regulation for stating user equipment reduces the available amount of the user equipment, and to described in online charging system transmission The available credit balance of user equipment.

In conjunction with the 5th aspect, in the 13rd kind of possible implementation, the method also includes:

First gateway sends the user equipment in the ticket of first gateway to mobility management entity；

The user equipment is singly sent to off-line accounting system if first gateway by mobility management entity OFCS。

In conjunction with the 6th aspect, a kind of motion management method, comprising:

User equipment is communicated by the first subflow with Correspondent Node, and first subflow is first base station use First internetworking protocol IP address is the subflow that the user equipment and the Correspondent Node are established, and first IP address is First gateway is the IP address of user equipment distribution, and first gateway is connect with the first base station；

When the user equipment switches from the first base station to second base station, the user equipment uses third Subflow is communicated by the first base station with the Correspondent Node, and the third subflow is that the first base station uses third IP address is the subflow that the user equipment and the Correspondent Node are established, and the third IP address is that the core network gateway is The IP address of the user equipment distribution, the core network gateway are connect with the first base station and second base station；

The first base station cancels first subflow；

When second gateway and first gateway are not same gateways, second base station is with obtaining the 2nd IP Location, and the second subflow is established for the user equipment and the Correspondent Node, second IP address is that second gateway is The IP address of user equipment distribution, it using second IP address is the use that second subflow, which is second base station, The subflow that family equipment and the Correspondent Node are established, second gateway are connect with second base station.

In conjunction with the 6th aspect, in the first possible implementation,

Before the user equipment is communicated by first subflow with the Correspondent Node, when the user equipment When data traffic between the Correspondent Node is more than preset threshold, the method also includes: the first base stations to obtain the One IP address, and the first subflow is established for the user equipment and the Correspondent Node；

Before the user equipment is from the first base station to second base station switching or the user equipment uses Before the third subflow is communicated by the first base station with the Correspondent Node, the method also includes: described One base station obtains third IP address, and establishes third subflow for the user equipment and the Correspondent Node.

In conjunction with the 6th aspect, in the second possible implementation,

After the first base station cancels first subflow, the method also includes:

The first base station discharges first IP address, and sends to first gateway and discharge first IP address Instruction message；

First gateway, after the instruction message for receiving release first IP address that the first base station is sent, Discharge first IP address.

In conjunction with the 6th aspect, in the third possible implementation,

In conjunction with the 6th aspect, in the fourth possible implementation,

Second base station obtains the second IP address, and establishes the second subflow for the user equipment and the Correspondent Node Later, the method also includes:

When the data traffic between the user equipment and the Correspondent Node is less than preset threshold, second base station Cancel second subflow.

In conjunction with the 4th kind of possible implementation of the 6th aspect, in a fifth possible implementation,

After second base station cancels second subflow, the method also includes:

Second base station discharges second IP address, and indicates that second gateway discharges second IP address.

In conjunction with the 6th aspect, in a sixth possible implementation,

When the data traffic between the user equipment and the Correspondent Node is less than preset threshold, second base station Second subflow is cancelled, and indicates that second gateway discharges second IP address；

Second base station discharges second IP address；

Second gateway discharges second IP address.

7th aspect, a kind of motion management method, be applied to user equipment, the user equipment by the first subflow with Correspondent Node is communicated, and first subflow is that the user equipment is led to using the first internetworking protocol IP address with described Believe opposite end establish subflow, first IP address be the first gateway be the user equipment distribution IP address, described first Gateway is connect with the first base station；

When the user equipment switches from the first base station to second base station, described in the user equipment use Third subflow is communicated by second base station with the Correspondent Node；

When second gateway and first gateway are not same gateways, the user equipment is with obtaining the 2nd IP Location, second IP address is the IP address that second gateway is the user equipment distribution, and is built with the Correspondent Node Vertical second subflow, second IP address are the IP address that second gateway is the user equipment distribution, second son Stream is the subflow that the user equipment is established using second IP address and the Correspondent Node, second gateway with it is described The connection of second base station.

In conjunction with the 7th aspect, in the first possible implementation,

Before the user equipment is communicated by first subflow with the Correspondent Node, when the user sets When the standby data traffic between the Correspondent Node is more than preset threshold, the method also includes: the user equipment obtains First IP address, and the first subflow is established with the Correspondent Node；

Before the user equipment is from the first base station to second base station switching or the user equipment makes Before being communicated by the first base station with the Correspondent Node with the third subflow, the method also includes: it is described User equipment obtains third IP address, and establishes third subflow with the Correspondent Node.

In conjunction with the 7th aspect, in the second possible implementation,

The user equipment first subflow revocation after, the method also includes:

First IP address is discharged, and generates the instruction message for discharging first IP address；

The user equipment sends the instruction message for discharging first IP address to first gateway, in order to described First gateway discharges first IP address.

In conjunction with the 7th aspect, in the third possible implementation,

It is described when second gateway and first gateway are not same gateways, the user equipment obtains the 2nd IP Address, comprising:

The user equipment receives the first gateway identification that the first base station is sent, and first gateway identification is for referring to Show first gateway；

The user equipment receives the second gateway identification that second base station is sent, and second gateway identification is for referring to Show second gateway；

The user equipment judges whether second gateway identification and first gateway identification are identical, if described Two gateway identifications are different from first gateway identification, then generate the request message for obtaining IP address；

The user equipment sends the request message for obtaining IP address to second gateway；

The receiver receives second IP address that second gateway is sent.

In conjunction with the 7th aspect, in the fourth possible implementation,

When the user equipment switches from the first base station to second base station, the user equipment is by described One IP address or the first gateway identification are sent to mobility management entity, in order to which the mobility management entity is according to First IP address or the first gateway identification determine whether second gateway and first gateway are same gateway, and in institute It states and distributes IP to second gateway when the second gateway and first gateway are not same gateways for the user device applies Address will be sent to the user equipment, first gateway identification from received second IP address of second gateway It is used to indicate first gateway, the mobility management entity is for managing second base station and second gateway；

The user equipment receives second IP address that the mobility management entity is sent.

In conjunction with the 7th aspect, in a fifth possible implementation,

When the user equipment switches from the first base station to second base station, the user equipment is by the second net It closes mark and is sent to the first base station, in order to which the first base station determines whether are second gateway and first gateway For same gateway, second gateway identification is used to indicate second gateway；

The user equipment receives the judgement instruction message that the first base station is sent, and the judgement instruction message is for referring to Show that second gateway and first gateway are not same gateways；

The user equipment generates the request message for obtaining IP address；

The user equipment receives second IP address that second gateway is sent.

In conjunction with the 7th aspect, in a sixth possible implementation,

When the data traffic between the user equipment and the Correspondent Node is less than preset threshold, the user equipment Second subflow is cancelled, and discharges second IP address.

In conjunction with the 7th aspect, in the 7th kind of possible implementation,

Revocation second subflow that the user equipment receives mobility management entity or second base station is sent Instruction message, the mobility management entity is for managing second base station and second gateway；

Revocation that the mobility management entity or second base station are sent described the is received in the receiver After the instruction message of two subflows, the user equipment cancels second subflow, and discharges second IP address.

In conjunction with the 7th kind of possible implementation of the 7th aspect, in the 8th kind of possible implementation,

The user equipment cancels second subflow, and after discharging second IP address, the method also includes:

The user equipment generates the instruction message for discharging second IP address；

The user equipment sends the instruction message of release second IP address to second gateway.

In conjunction with the 8th kind of possible implementation of the 7th aspect, in the 9th kind of possible implementation,

After the user equipment sends the instruction message of release second IP address to second gateway, institute State method further include:

The user equipment enters Idle state, and the paging of the mobility management entity is received after entering Idle state, raw The page-response message is sent at page-response message, and to the mobility management entity；

The user equipment receives the core after sending the page-response message to the mobility management entity The downlink data for the user equipment that net gateway is sent.

Eighth aspect, a kind of motion management method are applied to first base station, comprising:

The first base station sends and receivees the data of user equipment by the first subflow, in order to which user equipment passes through institute It states the first subflow to be communicated with Correspondent Node, wherein first subflow is that the first base station uses the first internetworking Protocol IP address is the subflow that the user equipment and the Correspondent Node are established, and first IP address is the first gateway for institute The IP address of user equipment distribution is stated, first gateway is connect with the first base station；

When the user equipment switches from the first base station to the second base station, the first base station passes through third subflow The data of user equipment are sended and received, in order to which user equipment is led to by the third subflow with the Correspondent Node Letter, wherein the third subflow is the subflow that the user equipment is established using third IP address and the Correspondent Node, described Third IP address is the IP address that the core network gateway is user equipment distribution, the core network gateway and described first Base station and second base station connection；

It is described when the first base station no longer sends and receivees the data of the user equipment by first subflow First base station cancels first subflow.

In conjunction with eighth aspect, in the first possible implementation,

The first base station sends and receivees the data of user equipment by the first subflow, in order to which user equipment passes through institute The first subflow is stated to be communicated with Correspondent Node, comprising:

The first base station receives the normal data packet that the user equipment is sent, by what is received from the user equipment The normal data packet is converted to the first sub-stream data packet, will be by converting the resulting first sub-stream data packet through described the One gateway is sent to the Correspondent Node；

The first base station receives the first sub-stream data packet that first gateway is sent, by the first base station from The first sub-stream data packet that first gateway receives is converted to the normal data packet, will be by converting resulting institute It states normal data packet and is sent to the user equipment；

The first base station sends and receivees the data of user equipment by third subflow, in order to which user equipment passes through institute Third subflow is stated to be communicated with Correspondent Node, comprising:

The first base station receives the normal data packet that the user equipment is sent, by what is received from the user equipment The normal data packet is converted to third sub-stream data packet, will be by converting the resulting third sub-stream data packet through the core Heart net gateway is sent to the Correspondent Node；

The first base station receives the third sub-stream data packet that the core network gateway is sent, by the first base station The third sub-stream data packet received from the core network gateway is converted to the normal data packet, will be by conversion gained The normal data packet be sent to the user equipment.

In conjunction with eighth aspect, in the second possible implementation,

Before the first base station sends and receivees the data of user equipment by the first subflow, the method also includes:

The first base station obtains first IP address, and is built using first IP address with the Correspondent Node Found first subflow；

Before the first base station sends and receivees the data of user equipment by third subflow, the method also includes:

The first base station obtains the third IP address, and is built using the third IP address with the Correspondent Node Found the third subflow.

In conjunction with eighth aspect, in the third possible implementation, the first base station cancel first subflow it Afterwards, the method also includes:

The first base station discharges first IP address, and indicates that first gateway discharges first IP address.

In conjunction with eighth aspect, in the fourth possible implementation, the first base station cancel first subflow it Afterwards, the method also includes:

The first base station receives the second gateway identification that the user equipment is sent, and second gateway identification is for referring to Show the second gateway, second base station is connect with second gateway；

When second gateway identification and the first gateway identification difference, the first base station generation judges instruction message, It is not same gateway that the judgement instruction message, which is used to indicate second gateway and first gateway,；

The first base station sends the judgement instruction message to the user equipment, in order to user equipment acquisition Second IP address, second IP address are the IP address that second gateway is the user equipment distribution.

In conjunction with the 4th kind of possible implementation of eighth aspect, in a fifth possible implementation, in the use When family equipment switches from the first base station to second base station, when first gateway and second gateway are not unified When gateway, the first base station sends the context that the first subflow acts on behalf of Proxy, the first subflow generation to second base station The context of reason includes at least at least one of following information:

The mobility management systems that the embodiment of the present invention provides when user equipment is in first base station, pass through the first son Stream is communicated with Correspondent Node, and when user equipment is from the first gateway to the second gateway handoff, user equipment is sub using third Stream replaces the first subflow to be communicated with Correspondent Node, guarantees the business continuance of user equipment.After the second subflow is established, use Family equipment no longer passes through third subflow transmission services data, but by the second subflow transmission services data, to reduce core net Gateway load enables core network gateway to guarantee business continuity of other user equipmenies when carrying out base station switching in network Property.

Detailed description of the invention

In order to illustrate the embodiments of the present invention more clearly or technical solution in the prior art, embodiment will be retouched below Attached drawing needed in stating is briefly described, it should be apparent that, the accompanying drawings in the following description is only of the invention one A little embodiments for those of ordinary skill in the art without creative efforts, can also be according to these Attached drawing obtains other attached drawings.

Fig. 1 is a kind of structural schematic diagram for mobility management systems that the embodiment of the present invention provides；

Fig. 2 is the structural schematic diagram for another mobility management systems that the embodiment of the present invention provides；

Fig. 3 is a kind of structural schematic diagram for user equipment that the embodiment of the present invention provides；

Fig. 4 is a kind of structural schematic diagram for first base station that the embodiment of the present invention provides；

Fig. 5 is the structural schematic diagram for another user equipment that the embodiment of the present invention provides；

Fig. 6 is the structural schematic diagram for another first base station that the embodiment of the present invention provides；

Fig. 7 is a kind of flow diagram for motion management method that the embodiment of the present invention provides；

Fig. 8 is the flow diagram for another motion management method that the embodiment of the present invention provides；

Fig. 9 is the flow diagram for another motion management method that the embodiment of the present invention provides；

Figure 10 is the flow diagram for another motion management method that the embodiment of the present invention provides.

Specific embodiment

Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.

The embodiment of the present invention provides the method, apparatus and system of a kind of mobile management.With LTE (Long Term Evolution, long term evolution) it is illustrated for cellular network.LTE cellular network includes: first base station, the second base station, One gateway, the second gateway, core network gateway and Correspondent Node, wherein first base station is connect with the first gateway, the second base station with The connection of second gateway.It should be noted that a gateway can connect multiple base stations in actual application scenarios, the present invention In the application scenarios of embodiment, first base station is the base station connecting with the first gateway, and the second base station is the base station with the second gateway, And first gateway and the second gateway be not the same gateway.When user equipment is connect with first base station, the first gateway is user Equipment distributes the first IP address, and user equipment establishes TCP (Transmission using the first IP address and Correspondent Node Control Protocol transmission control protocol) connection.When user equipment switches from first base station to the second base station, due to Two gateways and the first gateway are not same gateways, and the first IP address is not belonging to the range of management of the second gateway, therefore the second gateway Need to distribute new IP address for user equipment, user equipment is communicated using new IP address with Correspondent Node foundation.The present invention Embodiment in the second gateway be user equipment distribution IP address be the second IP address.User equipment obtains the second IP address Afterwards, TCP connection is established using the second IP address and Correspondent Node.User equipment is established using the first IP address and Correspondent Node TCP connection is the first subflow, and user equipment is the second subflow using the TCP connection that the second IP address and Correspondent Node are established.When It when user equipment switches from first base station to the second base station, needs to cancel the first subflow, establishes the second subflow.It is removed in the first subflow Before being established after pin to the second subflow, to avoid the disconnecting between user equipment and Correspondent Node, to guarantee that user sets Standby business continuance, user equipment are communicated with Correspondent Node by core network gateway using third subflow, third subflow For the TCP connection that user equipment is established using third IP address and Correspondent Node, third IP address is that core network gateway is user The IP address of equipment distribution.The embodiment of the present invention is right for establishing the application scenarios of MPTCP subflow by MPTCP technology The method, apparatus and system of mobile management are illustrated.

The embodiment of the present invention provides a kind of mobility management systems 10, referring to Fig.1, including user equipment 1001, first Base station 1002, the second base station 1003, the first gateway 1004, the second gateway 1005, core network gateway 1006 and Correspondent Node 1007, user equipment 1001 is communicated by the first subflow with Correspondent Node 1007, and the first subflow is that user equipment 1001 makes The subflow established with (Internet Protocol, the internetworking protocol) address the first IP and Correspondent Node 1007, the first IP Location is that the first gateway 1004 is the IP address that user equipment 1001 distributes, and the first gateway 1004 is connect with first base station 1002.

Before user equipment 1001 is from first base station 1002 to the switching of the second base station 1003, by the first subflow with communicate pair End 1007 is communicated, when user equipment 1001 switches from first base station 1002 to the second base station 1003, user equipment 1001 It replaces the first subflow to be communicated with Correspondent Node 1007 using third subflow, and cancels the first subflow, third subflow is user The subflow that equipment 1001 is established using third IP address and Correspondent Node 1007, third IP address are that core network gateway 1006 is to use The IP address that family equipment 1001 is distributed, core network gateway 1006 are connect with first base station 1002 and the second base station 1003.User Equipment 1001 is also used to after the first subflow is cancelled, using third subflow by the second base station 1003 and Correspondent Node 1007 into Row communication.Optionally, the first subflow can be through MPTCP (Multi-Path Transmission Control Protocol, multi-path transmission control protocol) technology establish MPTCP subflow, Correspondent Node 1007 can be support MPTCP skill Server, user terminal or the MPTCP agency of art and server, the first gateway 1004 and the second gateway 1005 can be Distributed local gateway (Local Gateway).

User equipment 1001 is also used to obtain second when the second gateway 1005 and the first gateway 1004 are not same gateways IP address, and the second subflow is established with Correspondent Node 1007, the second IP address is that the second gateway 1005 is that user equipment 1001 divides The IP address matched, the subflow that the second subflow is established for user equipment 1001 using the second IP address and Correspondent Node 1007, second Gateway 1005 is connect with the second base station 1003.

In the mobility management systems that the embodiment of the present invention provides, when user equipment is in first base station, pass through first Subflow is communicated with Correspondent Node, and when user equipment is from the first gateway to the second gateway handoff, user equipment uses third Subflow replaces the first subflow to be communicated with Correspondent Node, guarantees the business continuance of user equipment.After the second subflow is established, User equipment no longer passes through third subflow transmission services data, but by the second subflow transmission services data, to reduce core Net gateway load enables core network gateway to guarantee business continuity of other user equipmenies when carrying out base station switching in network Property.

Optionally, before user equipment 1001 is communicated by the first subflow with Correspondent Node 1007, when user sets When data traffic between standby 1001 and Correspondent Node 1007 is more than preset threshold, user equipment 1001 is also used to obtain first IP address, and the first subflow is established with Correspondent Node 1007, to guarantee that user equipment 1001 passes through the first subflow and Correspondent Node Data transmission between 1007.

Before user equipment 1001 is from first base station 1002 to the switching of the second base station 1003 or user equipment 1001 makes Before being communicated by first base station 1002 with Correspondent Node 1007 with third subflow, user equipment 1001 is also used to obtain Third IP address, and establish third subflow with Correspondent Node 1007, in order to when user equipment 1001 have first base station 1002 to When second base station 1003 switches, communicated by third subflow with Correspondent Node 1007.

Optionally, user equipment 1001 are also used to after the first subflow cancels, and discharge the first IP address, and to first Gateway 1004 sends the instruction message of the first IP address of release, and user equipment 1001 discharges the first IP address, i.e., no longer occupies the One IP address.

First gateway 1004, for receive user equipment 1001 send the first IP address of release instruction message after, Discharge the first IP address, the first gateway 1004 discharges the first IP address, i.e., the first IP address of releasing and user equipment 1001 it Between binding.After first gateway 1004 discharges the first IP address, the first IP address can be distributed into other users equipment 1001.

Optionally, the second IP address is obtained when the second gateway 1005 and the first gateway 1004 are not same gateways, comprising:

When user equipment 1001 is connect with first base station 1002, the first gateway mark that first base station 1002 is sent is received Know, the first gateway identification is used to indicate the first gateway 1004.

When user equipment 1001 switches from first base station 1002 to the second base station 1003, receives the second base station 1003 and send The second gateway identification, the second gateway identification is used to indicate the second gateway 1005.

If the second gateway identification is different from the first gateway identification, user equipment 1001 is obtained to the transmission of the second gateway 1005 The request message of IP address is taken, and receives the second IP address that the second gateway 1005 is sent.

Optionally, mobility management systems further include mobility management entity (Mobility Management Entity, MME) 1008, mobility management entity 1008 is for managing the second base station 1003 and the second gateway 1005, when the second gateway 1005 The second IP address is obtained when with the first gateway 1004 not being same gateway, comprising:

When user equipment 1001 switches from first base station 1002 to the second base station 1003, user equipment 1001 is by the first IP Address or the first gateway identification are sent to mobility management entity 1008, and the first gateway identification is used to indicate the first gateway 1004, specifically, gateway identification can be local network (Local Network) ID, alternatively, gateway identification is also possible to local Gateway (Local Gateway) ID.

It is that user equipment 1001 distributes that whether determining first IP address of mobility management entity 1008, which is the second gateway 1005, IP address or the first gateway identification it is whether identical as the second gateway identification, the second gateway identification is used to indicate the second gateway 1005。

If the first IP address is not that the second gateway 1005 is the IP address or the first gateway that user equipment 1001 distributes Mark is different from the second gateway identification, then mobility management entity 1008 is that the application of user equipment 1001 divides to the second gateway 1005 With IP address, and user equipment 1001 will be sent to from received second IP address of the second gateway 1005.

When user equipment 1001 switches from first base station 1002 to the second base station 1003, user equipment 1001 is by the second net It closes mark and is sent to first base station 1002.

If the second gateway identification is different from the first gateway identification, first base station 1002 is sentenced to the transmission of user equipment 1001 Disconnected instruction message, judging that instruction message is used to indicate the second gateway 1005 and the first gateway 1004 is not same gateway.

User equipment 1001 disappears after reception judges instruction message to the request that the second gateway 1005 sends acquisition IP address Breath, and receive the second IP address that the second gateway 1005 is sent.

Optionally, after the foundation of the second subflow, when the data traffic between family equipment 1001 and Correspondent Node 1007 is less than When preset threshold, user equipment 1001 is also used to cancel the second subflow.

Optionally, mobility management systems further include mobility management entity 1008, and mobility management entity 1008 is used for Manage the second base station 1003 and the second gateway 1005.

After the foundation of the second subflow, when the data traffic between family equipment 1001 and Correspondent Node 1007 is less than preset threshold When, mobility management entity 1008 is used to indicate user equipment 1001 and cancels the second subflow.

User equipment 1001 is also used to cancel the second subflow.

Optionally, user equipment 1001 are also used to after cancelling the second subflow, discharge the second IP address, and indicate second Gateway 1005 discharges the second IP address.

Second gateway 1005, for discharging the second IP address.

Optionally, after the foundation of the second subflow, when the data traffic between family equipment 1001 and Correspondent Node 1007 is less than When preset threshold, the second base station 1003 is used to indicate user equipment 1001 and cancels the second subflow, and indicates that the second gateway 1005 is released Put the second IP address.

User equipment 1001 is also used to cancel the second subflow, and discharges the second IP address.

Second gateway 1005, for discharging the second IP address.

Optionally, user equipment 1001 are also used to after user equipment 1001 discharges the second IP address, into Idle state.

Core network gateway 1006, the lower line number for the cache user equipment 1001 after user equipment 1001 enters Idle state According to, and to mobility management entity 1008 send user equipment 1001 downlink data notification.

Mobility management entity 1008 is also used to receive the lower line number of the user equipment 1001 of the transmission of core network gateway 1006 According to notice, and calling user device 1001.

User equipment 1001 is also used to respond the paging of mobility management entity 1008.

Optionally, mobility management entity 1008 are also used to indicate core net net after user equipment 1001 responds paging It closes 1006 and sends downlink data to user equipment 1001.

Core network gateway 1006 is also used to send the downlink data of user equipment 1001 to user equipment 1001.

Optionally, mobility management systems further include: mobility management entity 1008, online charging system (OCS, Online Charging System) 1009 and "Policy and Charging Rules Function (PCRF, Policy Control and Charging Rule Function) 1010,

Mobility management entity 1008 for obtaining the available amount of user equipment 1001 from line charge system, and will be used The available amount of family equipment 1001 is sent to the first gateway 1004.

Mobility management entity 1008 is also used to obtain the meter of user equipment 1001 from strategy and 1010 function of charging regulation Take rule, and the charging regulation of user equipment 1001 is sent to the first gateway 1004.

First gateway 1004 is also used to be communicated by the first subflow with Correspondent Node 1007 when user equipment 1001 When, it is reduced according to available amount of the charging regulation of user equipment 1001 to user equipment 1001, and to online charging system System 1009 sends the available credit balance of user equipment 1001.

Optionally, mobility management systems further include: mobility management entity 1008 and off-line accounting system (OFCS, Off-line Charging System)1011。

First gateway 1004 is also used to send user equipment 1001 in the first gateway 1004 to mobility management entity 1008 Ticket.

Mobility management entity 1008, by user equipment 1001 is singly sent to if the first gateway 1004 it is offline based on Charge system 1011.

The embodiment in conjunction with corresponding to Fig. 1, the embodiment of the present invention provide another mobility management systems 20.Mobility In management system 10, the foundation, revocation and the management of different sub-stream datas of subflow, mobile management system are completed by user equipment In system 20, user equipment is replaced to complete the foundation of subflow, revocation, and different subflows as subflow agency (Proxy) by base station The management of data, therefore the user equipment of more subflows is not supported to can be applied in mobility management systems 20 yet.

Referring to Fig. 2, mobility management systems 20 include user equipment 201, first base station 202, the second base station 203, and first Gateway 204, the second gateway 205, core network gateway 206 and Correspondent Node 207, user equipment 201 is by the first subflow and leads to Letter opposite end 207 is communicated, and it using the first IP address is user equipment 201 and Correspondent Node that the first subflow, which is first base station 202, 207 subflows established, it is the IP address that user equipment 201 distributes that the first IP address, which is the first gateway 204, the first gateway 204 with First base station 202 connects.

Before user equipment 201 is from first base station 202 to the switching of the second base station 203, first is used by first base station 202 Subflow is communicated with Correspondent Node 207, when user equipment 201 switches from first base station 202 to the second base station 203, first Base station 202 uses third subflow to replace the first subflow that user equipment 201 is communicated with Correspondent Node 207, and revocation the One subflow.Third subflow is the subflow that first base station 202 is established using third IP address and Correspondent Node 207, third IP address It is the IP address that core network gateway 206 is the distribution of user equipment 201, core network gateway 206 and first base station 202 and the second base Stand 203 connection.

When user equipment 201 switches to the second base station 203 by first base station 202, by the second base station 203 to user equipment 201 subflow is managed, so that user equipment 201 is carried out by the second base station 203 with Correspondent Node 207 using third subflow Communication, and do not use third subflow and communicated by first base station 202 with Correspondent Node 207.

Second base station 203, for obtaining the 2nd IP when the second gateway 205 and the first gateway 204 are not same gateways Location, and the second subflow is established for user equipment 201 and Correspondent Node 207, the second IP address is that the second gateway 205 is user equipment The IP address of 201 distribution, it using the second IP address is user equipment 201 and Correspondent Node 207 that the second subflow, which is the second base station 203, The subflow of foundation, the second gateway 205 are connect with the second base station 203.

Optionally, before user equipment 201 is communicated by the first subflow with Correspondent Node 207, work as user equipment When data traffic between 201 and Correspondent Node 207 is more than preset threshold, first base station 202, with being also used to obtain the first IP Location, and the first subflow is established for user equipment 201 and Correspondent Node 207.

Before user equipment 201 is from first base station 202 to the switching of the second base station 203 or user equipment 201 uses the Before three subflows are communicated by first base station 202 with Correspondent Node 207, first base station 202, with being also used to obtain the 3rd IP Location, and third subflow is established for user equipment 201 and Correspondent Node 207.

Optionally, first base station 202 are also used to after the first subflow cancels, and discharge the first IP address, and to the first net Close 204 instruction messages for sending the first IP address of release.

First gateway 204, for releasing after the instruction message for receiving the first IP address of release that first base station 202 is sent Put the first IP address.

Optionally, when user equipment 201 switches from first base station 202 to the second base station 203, when the first gateway 204 with When second gateway 205 is not unified gateway, first base station 202, which is also used to send the first subflow to the second base station 203, acts on behalf of Proxy Context, the context of the first subflow agency includes at least at least one of following information:

Subflow between first base station 202 and Correspondent Node 207 acts on behalf of layer sequence number, for example, token Token, first base station 202 The address of the sequence number of the first subflow between Correspondent Node 207, the first subflow identifies Address ID, first base station 202 Subflow between Correspondent Node 207 acts on behalf of the mapping relations between layer sequence number, for example and transmission control protocol TCP layer sequence number, for example, the TCP sequence number between one subflow agency and user equipment 201.

Optionally, after the foundation of the second subflow, when the data traffic between user equipment 201 and Correspondent Node 207 is more than When preset threshold, the second base station 203 is also used to cancel the second subflow.

Optionally, the second base station 203 is also used to after cancelling the second subflow, discharges the second IP address, and indicate the second net Close 205 the second IP address of release.

Second gateway 205, for discharging the second IP address.

Optionally, after the foundation of the second subflow, when the data traffic between user equipment 201 and Correspondent Node 207 is more than When preset threshold, the second base station 203 indicates that the second gateway 205 discharges the second IP address for cancelling the second subflow.

Second base station 203, is also used to discharge the second IP address.

Second gateway 205, for discharging the second IP address.

The mobility management systems that the embodiment of the present invention provides complete subflow as subflow agency (Proxy) by base station The functions such as foundation, revocation and the management of different sub-stream data, when so that user equipment is in first base station, pass through the first son Stream is communicated with Correspondent Node, and when user equipment is from the first gateway to the second gateway handoff, user equipment is sub using third Stream replaces the first subflow to be communicated by first base station and the second base station with Correspondent Node, guarantees the business continuity of user equipment Property.After the second subflow is established, user equipment no longer passes through third subflow transmission services data, but is transmitted by the second subflow Business datum enables core network gateway to guarantee that other user equipmenies are carrying out in network to reduce core network gateway load Business continuance when base station switches.

Based on embodiment corresponding to Fig. 1, the embodiment of the present invention provides a kind of user equipment 30, for completing subflow The functions such as foundation, revocation and the management of different sub-stream datas.Referring to shown in Fig. 3, user equipment 30 includes processor 301, connects Device 304, memory 302 and bus 303 are received, processor 301 and memory 302 are connected with each other by bus 303, Yong Hushe Standby 30 are communicated by the first subflow with Correspondent Node, and the first subflow is that user equipment 30 uses the first internetworking protocol IP The subflow that address and Correspondent Node are established, the first IP address are that the first gateway is the IP address that user equipment 30 distributes, the first net Pass is connect with first base station.

Wherein, processor 301, for using third when user equipment 30 switches from first base station to the second base station Stream is communicated by first base station with Correspondent Node, and cancels the first subflow, and third subflow is that user equipment 30 uses third The subflow that IP address and Correspondent Node are established, third IP address are that core network gateway is the IP address that user equipment 30 distributes, core Heart net gateway is connect with first base station and the second base station.

Processor 301 is also used to after the first subflow is cancelled, using third subflow by the second base station and Correspondent Node into Row communication.

Receiver 304, for obtaining the second IP address, the 2nd IP when the second gateway and the first gateway are not same gateways Address is that the second gateway is the IP address that user equipment 30 distributes, and the second gateway is connect with the second base station.

Processor 301, is also used to establish the second subflow with Correspondent Node, and the second subflow is that user equipment 30 uses the 2nd IP The subflow that address and Correspondent Node are established.

Optionally, receiver 304 are also used to carry out by the first subflow with Correspondent Node in user equipment 30 to communicate it Before, when the data traffic between user equipment 30 and Correspondent Node is more than preset threshold, obtain the first IP address.

Processor 301 is also used to establish the first subflow with Correspondent Node.

Receiver 304, be also used to user equipment 30 from first base station to the second base station switching before or user equipment Before 30 are communicated by first base station with Correspondent Node using third subflow, third IP address is obtained.

Processor 301 is also used to establish third subflow with Correspondent Node.

Optionally, processor 301 are also used to after the first subflow cancels, and discharge the first IP address, and generate release the The instruction message of one IP address.

User equipment 30 further includes transmitter, for sending the instruction message of the first IP address of release to the first gateway, with The first IP address is discharged convenient for the first gateway.

Optionally, receiver 304, are also used to receive the first gateway identification of first base station transmission, and the first gateway identification is used In indicating the first gateway.

Receiver 304, is also used to receive the second gateway identification of the second base station transmission, and the second gateway identification is used to indicate the Two gateways.

Processor 301 is also used to judge whether the second gateway identification is identical as the first gateway identification, if the second gateway mark Knowledge is different from the first gateway identification, then generates the request message for obtaining IP address.

User equipment 30 further includes transmitter, for sending the request message for obtaining IP address to the second gateway.

Receiver 304 is also used to receive the second IP address of the second gateway transmission.

Optionally, user equipment 30 further includes transmitter,

Transmitter, for when user equipment 30 switches from first base station to the second base station, by the first IP address or the One gateway identification is sent to mobility management entity, in order to which mobility management entity is according to the first IP address or the first gateway It identifies determining second gateway and whether the first gateway is same gateway, and when the second gateway and the first gateway are not same gateways It is the application distribution IP address of user equipment 30 to the second gateway, user will be sent to from received second IP address of the second gateway and set Standby 30, the first gateway identification is used to indicate the first gateway, and mobility management entity is for managing the second base station and the second gateway.

Receiver 304 is also used to receive the second IP address of mobility management entity transmission.

Optionally, user equipment 30 further includes transmitter 305, for when user equipment 30 is from first base station to the second base station When switching, the second gateway identification is sent to first base station, in order to which first base station determines whether are the second gateway and the first gateway For same gateway, the second gateway identification is used to indicate the second gateway.

Receiver 304 is also used to receive the judgement instruction message of first base station transmission, judges that instruction message is used to indicate the Two gateways and the first gateway are not same gateways.

Processor 301 is also used to generate the request message for obtaining IP address.

Transmitter 305 is also used to send the request message for obtaining IP address to the second gateway.

Optionally, after the foundation of the second subflow, processor 301 is also used to determine between user equipment 30 and Correspondent Node Whether data traffic is less than preset threshold.

When the data traffic between user equipment 30 and Correspondent Node is less than preset threshold, processor 301 is also used to remove The second subflow of pin, and discharge the second IP address.

Optionally, receiver 304 are also used to receive the second son of revocation of mobility management entity or the transmission of the second base station The instruction message of stream, mobility management entity is for managing the second base station and the second gateway.

Processor 301 is also used in the revocation that receiver 304 receives mobility management entity or the second base station is sent After the instruction message of second subflow, the second subflow is cancelled, and discharge the second IP address.

Optionally, processor 301 are also used to generate the instruction message of the second IP address of release.

User equipment 30 further includes transmitter 305, for sending the instruction message of the second IP address of release to the second gateway

Optionally, processor 301 are also used to after the instruction message for sending the second IP address of release to the second gateway, control User equipment 30 processed enters Idle state.

Receiver 304 is also used to receive the paging of mobility management entity.

Processor 301 is also used to after user equipment 30 enters Idle state, generates page-response message.

User equipment 30 further includes transmitter 305, for sending page-response message to mobility management entity.

Receiver 304 is also used to after user equipment 30 sends page-response message to mobility management entity, from core The downlink data of net gateway reception user equipment 30.

User equipment provided by the embodiment of the present invention, by establishing subflow, revocation subflow and being greater than different subflows Data are managed, and are communicated by the first subflow with Correspondent Node when in first base station, when user equipment is by the first net When closing to the second gateway handoff, user equipment replaces the first subflow to be communicated with Correspondent Node using third subflow, with guarantee Business continuance.After the second subflow is established, user equipment no longer passes through third subflow transmission services data, but passes through second Subflow transmission services data enable core network gateway to guarantee that other users set in network to reduce core network gateway load The standby business continuance when carrying out base station switching.

Based on embodiment corresponding to Fig. 2, the embodiment of the present invention provides a kind of first base station 40, for completing subflow The functions such as foundation, revocation and the management of different sub-stream datas.Refering to what is shown in Fig. 4, first base station 40 includes processor 401, deposits Reservoir 402, bus 403 and transceiver 404, processor 401, memory 402, transceiver 404 are interconnected by 403 phase of bus It connects.

Transceiver 404, for sending and receiving the data of user equipment by the first subflow, in order to which user equipment passes through First subflow is communicated with Correspondent Node, wherein the first subflow is for first internetworking protocol IP of the use of first base station 40 Location is the subflow that user equipment and Correspondent Node are established, and the first IP address is the IP address that the first gateway is user equipment distribution, First gateway is connect with first base station 40.

Transceiver 404 is also used to connect when user equipment switches from first base station 40 to the second base station by third subflow The data for receiving and sending user equipment, in order to which user equipment is communicated by third subflow with Correspondent Node, wherein third Subflow is the subflow that user equipment is established using third IP address and Correspondent Node, and third IP address is that core network gateway is user The IP address of equipment distribution, core network gateway are connect with first base station 40 and the second base station.

Processor 401, for cancelling the first subflow.

Optionally, transceiver 404, the normal data packet sent specifically for receiving user equipment, are also used to receive first The first sub-stream data packet that gateway is sent.

Processor 401 is converted to the first son specifically for the normal data packet for receiving transceiver 404 from user equipment Stream packets, the first sub-stream data packet for being also used to receive transceiver 404 from the first gateway are converted to normal data packet.

Transceiver 404, resulting first sub-stream data packet will be converted by processor 401 by being also used to sends through the first gateway To Correspondent Node, resulting normal data packet will be converted by processor 401 by, which being also used to, is sent to user equipment.

Transceiver 404 is also used to receive the third sub-stream data packet of core network gateway transmission.

Processor 401 is also used to the normal data packet that transceiver 404 is received from user equipment being converted to third subflow The third sub-stream data packet that transceiver 404 is received from core network gateway is converted to normal data packet by data packet.

Transceiver 404, resulting third sub-stream data packet will be converted by processor 401 by being also used to sends out through core network gateway It send to Correspondent Node.

Optionally, transceiver 404 are also used to obtain the first IP address.

Processor 401, is also used for the first IP address and Correspondent Node establishes the first subflow, in order to which user equipment is logical The first subflow is crossed to be communicated with Correspondent Node.

Transceiver 404 is also used to obtain third IP address.

Processor 401, is also used for third IP address and Correspondent Node establishes third subflow, in order to which user equipment is logical Third subflow is crossed to be communicated with Correspondent Node.

Optionally, processor 401 are also used to after the first subflow cancels, and discharge the first IP address, and generate release the The instruction message of one IP address.

Transmitter is also used to send the instruction message for the first IP address of release that processor 401 generates to the first gateway.

Optionally, transceiver 404 are also used to receive and use when user equipment switches from first base station 40 to the second base station The second gateway identification that family equipment is sent, the second gateway identification are used to indicate the second gateway, and the second base station is connect with the second gateway.

Processor 401 is also used to when the second gateway identification and the first gateway identification difference, and generation judges instruction message, Judge that instruction message is used to indicate the second gateway and the first gateway is not same gateway.

Transceiver 404, is also used to send to user equipment and judge instruction message, in order to the 2nd IP of user equipment acquisition Location, the second IP address are the IP address that the second gateway is user equipment distribution.

Optionally when user equipment switches from first base station to the second base station, when the first gateway and the second gateway are not systems When one gateway, transceiver 404 is also used to send the context that the first subflow acts on behalf of Proxy, the first subflow agency to the second base station Context include at least at least one of following information:

Subflow between first base station and Correspondent Node acts on behalf of layer sequence number, for example, token Token, first base station and Correspondent Node Between the first subflow sequence number, the address of the first subflow identifies Address ID, between first base station and Correspondent Node Subflow acts on behalf of the mapping relations between layer sequence number, for example and transmission control protocol TCP layer sequence number, for example, and the first subflow agency sets with user TCP sequence number between standby.

The first base station that the embodiment of the present invention provides, by the foundation, revocation and different sub-stream datas of completing subflow The functions such as management pass through so that user equipment is communicated using the first subflow with Correspondent Node stream by first base station First base station is communicated using third subflow with Correspondent Node stream, ensure that the business continuance of user equipment.

The embodiment in conjunction with corresponding to Fig. 3, the embodiment of the present invention provides another user equipment 50, for completing subflow The functions such as foundation, revocation and the management of different sub-stream data.User equipment 50 include: multipath control unit 501 and Receiving unit 502, user equipment 50 are communicated by the first subflow with Correspondent Node, and the first subflow is the use of user equipment 50 The subflow that first internetworking protocol IP address and Correspondent Node are established, the first IP address are that the first gateway is that user equipment 50 divides The IP address matched, the first gateway are connect with first base station,

Multipath control unit 501, for using third when user equipment 50 switches from first base station to the second base station Subflow is communicated by first base station with Correspondent Node, and cancels the first subflow, and third subflow is that user equipment 50 uses the The subflow that three IP address and Correspondent Node are established, third IP address are that core network gateway is the IP address that user equipment 50 distributes, Core network gateway is connect with first base station and the second base station, the first subflow be user equipment 50 using the first IP address with communicate The subflow that opposite end is established, the first IP address are that the first gateway is the IP address that user equipment 50 distributes, the first gateway and the first base It stands connection.

Multipath control unit 501 is also used to after the first subflow is cancelled, and by the second base station and is led to using third subflow Letter opposite end is communicated.

Receiving unit 502, for obtaining the second IP address when the second gateway and the first gateway are not same gateways, second IP address is that the second gateway is the IP address that user equipment 50 distributes, and the second gateway is connect with the second base station.

Multipath control unit 501, is also used to establish the second subflow with Correspondent Node, and the second subflow is that user equipment 50 makes The subflow established with the second IP address and Correspondent Node.

Optionally, before user equipment 50 is communicated by the first subflow with Correspondent Node, when user equipment 50 with When data traffic between Correspondent Node is more than preset threshold, receiving unit 502 is also used to obtain the first IP address.

Multipath control unit 501 is also used to establish the first subflow with Correspondent Node.

Before user equipment 50 is from first base station to the switching of the second base station or user equipment 50 is logical using third subflow It crosses before first base station communicated with Correspondent Node, receiving unit 502 is also used to obtain third IP address.

Multipath control unit 501 is also used to establish third subflow with Correspondent Node.

Optionally, multipath control unit 501 is also used to after the first subflow cancels, and discharges the first IP address, and raw At the instruction message of the first IP address of release.

User equipment 50 further includes transmission unit 503, and the instruction for sending the first IP address of release to the first gateway disappears Breath, in order to which the first gateway discharges the first IP address.

Optionally, receiving unit 502 are also used to receive the first gateway identification of first base station transmission, the first gateway identification It is used to indicate the first gateway.

Receiving unit 502, is also used to receive the second gateway identification of the second base station transmission, and the second gateway identification is used to indicate Second gateway.

Multipath control unit 501 is also used to judge whether the second gateway identification is identical as the first gateway identification, if the Two gateway identifications are different from the first gateway identification, then generate the request message for obtaining IP address.

User equipment 50 further includes transmission unit 503, for sending the request message for obtaining IP address to the second gateway.

Receiving unit 502 is also used to receive the second IP address of the second gateway transmission.

Optionally, user equipment 50 further includes transmission unit 503,

Transmission unit 503, for when user equipment 50 switches from first base station to the second base station, by the first IP address or The first gateway identification of person is sent to mobility management entity, in order to which mobility management entity is according to the first IP address or first Gateway identification determines whether the second gateway and the first gateway are same gateway, and is not same net in the second gateway and the first gateway The second gateway of Guan Shixiang is the application distribution IP address of user equipment 50, will be sent to use from received second IP address of the second gateway Family equipment 50, the first gateway identification are used to indicate the first gateway, and mobility management entity is for managing the second base station and the second net It closes.

Receiving unit 502 is also used to receive the second IP address of mobility management entity transmission.

Optionally, transmission unit 503 are used for when user equipment 50 switches from first base station to the second base station, by second Gateway identification is sent to first base station, in order to which first base station determines whether the second gateway and the first gateway are same gateway, the Two gateway identifications are used to indicate the second gateway.

Receiving unit 502 is also used to receive the judgement instruction message of first base station transmission, judges that instruction message is used to indicate Second gateway and the first gateway are not same gateways.

Multipath control unit 501 is also used to generate the request message for obtaining IP address.

Transmission unit 503 is also used to send the request message for obtaining IP address to the second gateway.

Optionally, after the foundation of the second subflow, multipath control unit 501 be also used to determine user equipment 50 with communicate pair Whether the data traffic between end is less than preset threshold.

When the data traffic between family equipment 50 and Correspondent Node is less than preset threshold, multipath control unit 501, also For cancelling the second subflow, and discharge the second IP address.

Optionally, receiving unit 502 are also used to receive the revocation second of mobility management entity or the transmission of the second base station The instruction message of subflow, mobility management entity is for managing the second base station and the second gateway.

Multipath control unit 501 is also used to receive mobility management entity or the second base station in receiving unit 502 After the instruction message of the second subflow of revocation of transmission, the second subflow is cancelled, and discharge the second IP address.

Optionally, multipath control unit 501 is also used to generate the instruction message of the second IP address of release.

User equipment 50 further includes transmission unit 503, and the instruction for sending the second IP address of release to the second gateway disappears Breath

Optionally, user equipment 50 further includes status control unit 504, for sending out in transmission unit 503 to the second gateway After the instruction message for sending the second IP address of release, control user equipment 50 enters Idle state.

Receiving unit 502 is also used to receive the paging of mobility management entity.

Multipath control unit 501 is also used to after user equipment 50 enters Idle state, generates page-response message.

User equipment 50 further includes transmission unit 503, for sending page-response message to mobility management entity.

Receiving unit 502 is also used to after user equipment 50 sends page-response message to mobility management entity, from core The downlink data of heart net gateway reception user equipment 50.

The embodiment in conjunction with corresponding to Fig. 4, the embodiment of the present invention provides another first base station 60, for completing subflow The functions such as foundation, revocation and the management of different sub-stream data.As shown in connection with fig. 6, first base station 60 includes that subflow agency is single Member 601 and Transmit-Receive Unit 602.

Transmit-Receive Unit 602, for sending and receiving the data of user equipment by the first subflow, in order to which user equipment is logical It crosses the first subflow to be communicated with Correspondent Node, wherein the first subflow is that first base station 60 uses the first internetworking protocol IP Address is the subflow that user equipment and Correspondent Node are established, and the first IP address is the IP that the first gateway is user equipment distribution Location, the first gateway are connect with first base station 60.

Transmit-Receive Unit 602 is also used to pass through third subflow when user equipment switches from first base station 60 to the second base station The data of user equipment are sended and received, in order to which user equipment is communicated by third subflow with Correspondent Node, wherein the Three subflows are the subflow that user equipment is established using third IP address and Correspondent Node, and third IP address is that core network gateway is to use The IP address of family equipment distribution, core network gateway are connect with first base station 60 and the second base station.

Subflow agent unit 601, for cancelling the first subflow.

Optionally, Transmit-Receive Unit 602, the normal data packet sent specifically for receiving user equipment, are also used to receive the The first sub-stream data packet that one gateway is sent.

Subflow agent unit 601 is converted specifically for the normal data packet for receiving Transmit-Receive Unit 602 from user equipment For the first sub-stream data packet, the first sub-stream data packet for being also used to receive Transmit-Receive Unit 602 from the first gateway is converted to mark Quasi- data packet.

Transmit-Receive Unit 602 is also used to that resulting first sub-stream data packet will be converted through first by subflow agent unit 601 Gateway is sent to Correspondent Node, and resulting normal data packet will be converted by subflow agent unit 601 by, which being also used to, is sent to user Equipment.

Optionally, Transmit-Receive Unit 602 are also used to obtain the first IP address.

Subflow agent unit 601, is also used for the first IP address and Correspondent Node establishes the first subflow, in order to user Equipment is communicated by the first subflow with Correspondent Node.

Transmit-Receive Unit 602 is also used to obtain third IP address.

Subflow agent unit 601, is also used for third IP address and Correspondent Node establishes third subflow, in order to user Equipment is communicated by third subflow with Correspondent Node.

Optionally, subflow agent unit 601 is also used to after the first subflow cancels, and discharges the first IP address, and generate Discharge the instruction message of the first IP address.

Transmitter is also used to send the instruction for the first IP address of release that subflow agent unit 601 generates to the first gateway Message.

Optionally, Transmit-Receive Unit 602 are also used to receive when user equipment switches from first base station 60 to the second base station The second gateway identification that user equipment is sent, the second gateway identification are used to indicate the second gateway, and the second base station and the second gateway connect It connects.

Subflow agent unit 601 is also used to when the second gateway identification and the first gateway identification difference, generates judgement instruction Message judges that instruction message is used to indicate the second gateway and the first gateway is not same gateway.

Transmit-Receive Unit 602 is also used to judge instruction message to user equipment transmission, in order to which user equipment obtains the 2nd IP Address, the second IP address are the IP address that the second gateway is user equipment distribution.

Optionally, when user equipment switches from first base station to the second base station, when the first gateway and the second gateway are not When unified gateway, Transmit-Receive Unit 602 is also used to send the context that the first subflow acts on behalf of Proxy, the first subflow to the second base station The context of agency includes at least at least one of following information:

Based on embodiment corresponding to Fig. 1, the embodiment of the present invention provides a kind of motion management method, is applied to honeycomb Mobility management systems in network.Mobility management systems include user equipment, first base station, the second base station, the first gateway, Second gateway, core network gateway and Correspondent Node, first base station are connect with the first gateway, and the second base station and the second gateway connect It connects, core network gateway is connect with the first base and the second base station.When user equipment establishes TCP by the first gateway and Correspondent Node It is that user equipment distributes IP by the first gateway when (Transmission Control Protocol transmission control protocol) connects Address, the first gateway are that user equipment distribution IP address is the first IP address.When user equipment is from first base station to the second base station When switching, since the second gateway is not managed the IP address of the first gateway distribution, user equipment cannot use the first net The IP address for closing distribution establishes TCP connection by the second gateway and Correspondent Node, therefore the second gateway is that user equipment distribution is new IP address so that the TCP connection that user equipment is established using new IP address and Correspondent Node.Second gateway sets for user The new IP address that back-up is matched is the second IP address.The TCP connection that user equipment is established using the first IP address and Correspondent Node For the first subflow, user equipment is the second subflow using the TCP connection that the second IP address and Correspondent Node are established.Work as user equipment It when switching from first base station to the second base station, needs to cancel the first subflow, establishes the second subflow.It is arrived after the revocation of the first subflow Before second subflow is established, to avoid the disconnecting between user equipment and Correspondent Node, to guarantee the business of user equipment Continuity, user equipment are communicated with Correspondent Node by core network gateway using third subflow, and third subflow sets for user The standby TCP connection established using third IP address and Correspondent Node, third IP address are that core network gateway is user equipment distribution IP address.The present embodiment is to pass through MPTCP (Multi-Path Transmission Control Protocol, multipath Transmission control protocol) technology establishes for the application scenarios of MPTCP subflow, is illustrated to the method for mobile management.Certainly, Motion management method provided by the present invention is equally applicable to establish the application scenarios of subflow by other technologies means, such as Subflow is established by MPRTP (Multi-Path Real-time Transport Protocol, real-time transport protocol) technology. The present invention is to establishing the particular technique means of subflow without limitation.Referring to shown in Fig. 7, the mobility of the embodiment of the present invention offer Management method, comprising the following steps:

701, user equipment establishes the first subflow and third subflow.

Wherein, the first subflow is the subflow that user equipment is established using the first IP address and Correspondent Node, the first IP address It is the IP address that the first gateway is user equipment distribution, the first gateway is connect with first base station.Third subflow makes for user equipment The subflow established with third IP address and Correspondent Node, third IP address are IP that core network gateway is user equipment distribution Location, core network gateway are connect with first base station and the second base station.Optionally, the subflow in the present embodiment, which can be, passes through MPTCP technology establishes MPTCP subflow.In MPTCP technology, by the way that in TCP, (Transmission Control Protocol is passed Transport control protocol view)/IP (Internet Protocol, Internet protocol) protocol stack architecture socket (socket) and TCP Between layer, increase MPTCP layers, is responsible for the multiple sub- TCP modules of management by MPTCP layers.Communicating pair is with can be used different IP One or the connection of one or more TCP subflow are established in location pair, and each TCP subflow is a MPTCP subflow.

Optionally, to be mentioned for LTE (Long Term Evolution, long term evolution) wireless cellular network to the present invention The motion management method of confession is illustrated.Wherein, user equipment and Correspondent Node can be the user for supporting MPTCP technology Terminal, server or MPTCP agency and server, the first gateway can be distributed local gateway.User equipment exists Access first base station after, from the first gateway obtain the first IP address, and use the first IP address, by MPTCP technology with communicate The first MPTCP subflow is established in opposite end, and is communicated by the first subflow with Correspondent Node.

Specific optional, user equipment obtains the first IP address can be there are two types of mode.First way, user equipment to First gateway send DHCP (Dynamic Host Configuration Protocol, dynamic host configuration protocol) message to First IP address is sent to user equipment by dhcp message by the first gateway requests IP address, the first gateway.The second way, User equipment sends NAS (Non Access Stratum, Non-Access Stratum) message request IP address to mobility management entity, moves The first IP address obtained from the first gateway is sent to user equipment by NAS message by mobility management entity.User equipment obtains After taking the first IP address, the first MPTCP subflow is established by MPTCP technology and Correspondent Node.Specifically, user equipment is to communication Opposite end, which is sent, establishes the request of the first MPTCP subflow, Correspondent Node after receiving and establishing the request of the first MPTCP subflow, to User equipment returns to confirmation message, and user equipment sends the first MPTCP subflow to communication terminal and establish after receiving confirmation message Confirmation message, thus the first MPTCP subflow, which is established, completes, and the business datum between user equipment and Correspondent Node can be at this time It is transmitted by the first MPTCP subflow.

Similar from the first gateway acquisition process of the first IP address with user equipment, user equipment is obtained from core network gateway Third IP address.User equipment using third IP address and Correspondent Node establishes the 3rd MPTCP subflow, and detailed process is as follows: using The option about MPTCP is arranged in family equipment in the TCP message for being sent to Correspondent Node, initiates asking for the 3rd MPTCP subflow of addition It asks.Specifically, user equipment passes through setting MP_CAPABLE (Multipath Capable multipath is available) mark, Xiang Tongxin Whether opposite end inquiry can establish the 3rd MPTCP subflow, as the ACK for the MP_CAPABLE for receiving Correspondent Node return After (Acknowledgement, confirmation) message, reuses third IP address and send to Correspondent Node provided with MP_JOIN (Join Connection, subflow access) marker TCP message, when user equipment receives MP_JOIN's transmitted by Correspondent Node ACK message, then the 3rd MPTCP subflow, which is established, completes.

702, when user equipment switches from first base station to the second base station, user equipment passes through first using third subflow Base station is communicated with Correspondent Node, and cancels the first subflow.

Optionally, the first MPTCP subflow is mainly used for transmitting the business datum of user equipment, therefore needs in user equipment It is established before transmission services data.3rd MPTCP subflow is mainly used for being cut when user equipment from first base station to the second base station When changing, the data between user equipment and Correspondent Node are transmitted, therefore user equipment establishes the 3rd MPTCP before making the switch Subflow.For example, in a kind of specific application scenarios, when serving BS of the first base station as user equipment, user Equipment establishes third subflow, and is communicated by first base station with Correspondent Node using third subflow.When user equipment and lead to When believing that the data traffic between opposite end is more than preset threshold, user equipment establishes the first subflow, and is mainly passed by the first subflow Data between defeated user equipment and Correspondent Node.Wherein, the first IP address, which can be, shares identical hold with third IP address It carries (Bearer).Alternatively, in conjunction in step 701 user equipment obtain the first IP address can with the second way, mobility pipe It is the new IP address of user equipment requests that entity, which is managed, to the first gateway, and the first gateway is sending the first IP to mobility management entity While address, pass through Bearer Creat Request (the newly-built request of carrying) the newly-built use of message requesting mobility management entity Carrying between family equipment and first base station.After the completion of carrying is newly-built, mobility management entity is by newly-built carrying and the first IP Address binding is simultaneously sent to user equipment by NAS message together.Again alternatively, mobility management entity sends the to user equipment One IP address, and indicate user equipment with new the first net with APN (Access Point Name, access point name) binding It closes APN and creates PDN (Packet Data Network, Packet Data Network) connection, and create and held with what the first IP address was bound It carries.

When user equipment switches from first base station to the second base station, the first MPTCP is replaced using the 3rd MPTCP subflow Stream is communicated with Correspondent Node, i.e., only sends data to Correspondent Node by the 3rd MPTCP subflow, and pass through third MPTCP subflow receives the data that Correspondent Node is sent, and does not use the first MPTCP subflow, user equipment revocation at this time first MPTCP subflow.

Optionally, user equipment can be sent to Correspondent Node by the 2nd MPTCP subflow and carry REMOVE_ADDR The TCP message of (Remove Address removes address) option, the request of the first MPTCP subflow of revocation is sent to Correspondent Node, It wherein include the first IP address in REMOVE_ADDR option.

Alternatively, user equipment sends DSS (Data Sequence by the first MPTCP subflow, to Correspondent Node Signal, data sequence information number) mark the position F be 1 TCP message, wherein DSS mark the position F be DATA_FIN, The position DATA_FIN 1 represents data and is transmitted, request the first MPTCP subflow of revocation.

Alternatively, user equipment sends to Correspondent Node by the first MPTCP subflow and carries MP_FASTCLOSE The TCP message of (Multipath Fastclose, multipath quick closedown) option, request the first MPTCP subflow of revocation.

Optionally, after the revocation of the first MPTCP subflow, user equipment discharges the first IP address, and indicates that the first gateway is released Put the first IP address.Specifically, user equipment can be by first base station or mobility management entity with will discharging the first IP The instruction message of location is sent to the first gateway.User equipment discharges the first IP address, i.e., no longer occupies the first IP address.First net Close the first IP address of release, i.e. binding of the releasing between the first IP address and user equipment.First gateway is discharging the first IP Behind address, the first IP address can be distributed into other users equipment.

After the revocation of first MPTCP subflow, user equipment switches to the second base station, no longer transmits third by first base station The data of MPTCP subflow, but the data of the 3rd MPTCP subflow are transmitted by the second base station, it is communicated with Correspondent Node.

703, when the second gateway and the first gateway are not same gateways, user equipment obtains the second IP address, and with it is logical The second subflow is established in letter opposite end.

Wherein, the second IP address is the IP address that the second gateway is user equipment distribution, and the 2nd MPTCP subflow sets for user The standby subflow established using the second IP address and Correspondent Node, the second gateway are connect with the second base station, and the second gateway can be point The local gateway of cloth.

The present embodiment provides the modes that three kinds of optional user equipmenies obtain the second IP address.

The first is obtained in the mode of the second IP address, when user equipment is connect with first base station, receives first base station The first gateway identification sent, wherein the first gateway identification is used to indicate the first gateway.When user equipment in Idle state from first When base station is moved to the second base station and connect with the second base station, the second gateway identification that the second base station is sent is received, wherein second Gateway identification is used to indicate the second gateway.User equipment judges the second gateway identification and the first gateway identification, if Second gateway identification is different from the first gateway identification, then user equipment sends the request message for obtaining IP address to the second gateway, Based on context second gateway records judge whether to be that user equipment is assigned with IP address, if being user equipment point IP address is matched, has then refused user equipment and obtain the request of new IP address, and has indicated that user equipment has been using the second gateway The IP address of user equipment distribution sends the to user equipment if the second gateway is not user equipment distribution IP address Two IP address, user equipment receive the second IP address that the second gateway is sent, that is, complete the acquisition process of the second IP address.It is optional , respective gateway identification can be passed through broadcast transmission to user equipment by first base station and the second base station.Gateway identification can To be local network (Local Network) ID, alternatively, gateway identification is also possible to local gateway (Local Gateway) ID. The request message for obtaining IP address can be DHCP request.

In the mode of second of the second IP address of acquisition, user equipment sends the first IP address or the first gateway identification To mobility management entity.Mobility management entity determine the first IP address whether be the second gateway be user equipment distribution IP Whether address or the first gateway identification are identical as the second gateway identification.If the first IP address is not that the second gateway is user The IP address of equipment distribution or the first gateway identification are different from the second gateway identification, then mobility management entity determines first Gateway and the second gateway are not same gateways.

Mobility management entity determines the first gateway and the second gateway is not based on context record judgement after same gateway Whether the second gateway has been that user equipment is assigned with IP address, if the second gateway be user equipment with being assigned with IP Location, then mobility management entity refusal user equipment obtains the request of new IP address, and indicates that user equipment uses the second gateway It has been the IP address of user equipment distribution, if the second gateway is not user equipment distribution IP address, mobile management Entity is that user device applies distribute IP address, and will be sent to use from received second IP address of the second gateway to the second gateway Family equipment.Optionally, mobility management entity can send the second IP address to user equipment by NAS message.User equipment The second IP address for receiving mobility management entity transmission, that is, complete the acquisition process of the second IP address.

Optionally, after mobility management entity determines the second gateway and the first gateway is not same gateway, can also refer to Show that user equipment to the second gateway requests IP address, completes the acquisition process of the second IP address.

The third is obtained in the mode of the second IP address, and the second gateway identification is sent to first base station by user equipment, the One base station judges the second gateway identification and the first gateway identification, if the second gateway identification and the first gateway identification are not Together, then first base station to user equipment transmission judge instruction message, which is used to indicate the second gateway and first Gateway is not same gateway, judges instruction message specifically and can be Handover command message.User equipment is sentenced in reception After disconnected instruction message, by obtaining the second IP address to the new IP address of the second gateway requests.First base station can also will judge Instruction message is sent to the second base station, such as by Handover Request message, and the second base station, which receives, judges instruction message Afterwards, instruction user equipment obtains IP address or the IP address new for user equipment requests to mobility management entity.

In conjunction with the process for establishing the 3rd MPTCP subflow in step 701, after user equipment obtains the second IP address, the is used Two IP address establish the 2nd MPTCP subflow, and are mainly carried out by the 2nd MPTCP subflow transmission services data with Correspondent Node Communication.By the 2nd MPTCP subflow transmission services data, the volume of transmitted data of the 3rd MPTCP subflow is reduced, core is reduced The data load of net gateway.

704, user equipment cancels the second subflow.

Optionally, the 2nd MPTCP subflow is mainly used for transmitting the business datum of user equipment, when sub by the 2nd MPTCP When spreading defeated data traffic less than preset threshold, the 2nd MPTCP subflow can be cancelled.The size of preset threshold can be according to reality Border situation is configured, the present embodiment to the specific value of preset threshold without limitation.

The present embodiment provides the modes of three kinds of the 2nd MPTCP subflows of optional revocation.

In the mode of the first the 2nd MPTCP subflow of revocation, user equipment determines the number transmitted by the 2nd MPTCP subflow When being less than preset threshold according to flow, the 2nd MPTCP subflow is cancelled, while discharging the second IP address, and indicates the release of the second gateway Second IP address.

In the mode of second of the 2nd MPTCP subflow of revocation, the second base station determines the number transmitted by the 2nd MPTCP subflow When being less than preset threshold according to flow, instruction message is sent to user equipment, or instruction is sent by mobility management entity and is disappeared Breath.The 2nd MPTCP subflow is cancelled after the instruction message that user equipment receives the second base station or mobility management entity is sent, The second IP address is discharged simultaneously, and indicates that the second gateway discharges the second IP address.

In the mode of the third the 2nd MPTCP subflow of revocation, the second base station determines the number transmitted by the 2nd MPTCP subflow When being less than preset threshold according to flow, deletes user equipment and be used for transmission the Internet resources of the 2nd MPTCP subflow, including the 2nd IP The carrying of location and the 2nd MPTCP subflow.When user equipment is in connected state, instruction user equipment cancels the 2nd MPTCP subflow, Indicate that the second gateway discharges the second IP address.User equipment receives the finger of the 2nd MPTCP subflow of revocation of the second base station transmission After showing, the request of the 2nd MPTCP subflow of revocation is sent to Correspondent Node in the 3rd MPTCP subflow.2nd MPTCP subflow is cancelled Afterwards, user equipment discharges the second IP address.

Optionally, after the 2nd MPTCP subflow is deleted, user equipment enters idle (Idle) state.

705, user equipment receives downlink data in Idle state.

After user equipment enters Idle state, when core network gateway receives the downlink data of user equipment, cache user The downlink data of equipment, and to mobility management entity send user equipment downlink data notification (DDN, Downlink Data Notification).After mobility management entity receives the downlink data notification of the user equipment of core network gateway transmission, seek Exhale (Page) user equipment, the paging of user device responsive mobility management entity.Mobility management entity is rung in user equipment Indicate that core network gateway sends downlink data to user equipment after should paging.

Provided mobility management systems based on the embodiment of the present invention, the embodiment of the present invention also provide it is a kind of to The method of family equipment progress charging.When user equipment is communicated by the first MPTCP subflow with Correspondent Node, by the first gateway pair User equipment carries out charging, when user equipment is communicated by the 2nd MPTCP subflow with Correspondent Node, by the second gateway to user Equipment carries out charging.It is illustrated so that the first gateway carries out the application scenarios of charging to user equipment as an example in the present embodiment.

Using charging rule functions (PCRF, Policy and Charging Rules Function) and online meter In the application scenarios of charge system (OCS, Online Charging System), the first gateway obtains the charging regulation of user equipment And the available amount of user equipment, and reduced according to available amount of the charging regulation of user equipment to user equipment, Then the available credit balance of user equipment is sent to online charging system.Wherein, the available amount of user equipment is the user The available amount of the account of equipment can be able to be the credit (Credit) or quota (Quota) of the user equipment with amount.

It is specific optional, when user equipment is connected to the first gateway, to mobility management entity request user equipment The available amount of charging regulation and user equipment.The user that mobility management entity is obtained from "Policy and Charging Rules Function sets Standby charging regulation is simultaneously sent to the first gateway, and mobility management entity obtains the available remaining of user equipment from online charging system Volume is simultaneously sent to the first gateway.First gateway detains the available amount of user equipment according to the charging regulation of user equipment Subtract.If the available amount of user equipment has all been reduced, the first gateway requests user to mobility management entity again The available amount of equipment.After the revocation of first MPTCP subflow, the available credit balance of user equipment is passed through mobility by the first gateway Management entity returns to online charging system.

In answering using charging rule functions and off-line accounting system (OFCS, Off-line Charging System) With in scene, the first gateway sends user equipment in ticket (CDR, the Call Detail of the first gateway to mobility management entity Record).User equipment is singly sent to off-line accounting system if the first gateway by mobility management entity.Optionally, it moves Mobility management entity can manage multiple gateways, the first gateway can for one in mobility management entity institute management gateway or Person is multiple.

Based on embodiment corresponding to Fig. 2, the embodiment of the present invention provides another motion management method, referring to Fig. 8 It is shown, comprising the following steps:

801, first base station is that user equipment establishes the first subflow and third subflow.

In the present embodiment, the foundation, revocation and different subflow numbers of subflow are completed as subflow agency (Proxy) by base station According to the functions such as management so that not supporting the user equipment of more subflows that can implement mobile management side provided by the present invention yet Method.

Optionally, first base station can obtain the first IP address by following three kinds optional modes.In conjunction with corresponding to Fig. 7 First IP address is sent to first by RRC information after user equipment obtains the first IP address by the step 701 in embodiment Base station.Or the first IP address is sent to mobility management entity by NAS message by user equipment, by mobility management entity The first IP address is sent to first base station by S1 message.Alternatively, when mobility management entity is that user sets to the first net When closing application IP address, after mobility management entity receives the first IP address from the first gateway, by S1 message by the first IP Address is sent to first base station.

After first base station obtains the first IP address, the first MPTCP subflow is established, the first MPTCP subflow makes for first base station It is the subflow that user equipment and Correspondent Node are established with the first IP address, the first IP address is that the first gateway distributes for user equipment IP address, the first gateway connect with first base station.

Similar with the first base station acquisition process of the first IP address, first base station is real from user equipment or mobile management Body obtains third IP address, and establishes the 3rd MPTCP subflow.Wherein, the 3rd MPTCP subflow be first base station using the 3rd IP Location is the subflow that user equipment and Correspondent Node are established, and third IP address is the IP that core network gateway is user equipment distribution Location, core network gateway are connect with first base station and the second base station.

802, when user equipment switches from first base station to the second base station, user equipment passes through first using third subflow Base station is communicated with Correspondent Node, and first base station cancels the first subflow.

Optionally, the first MPTCP subflow is mainly used for transmitting the business datum of user equipment, therefore needs in user equipment It is established before transmission services data.3rd MPTCP subflow is mainly used for being cut when user equipment from first base station to the second base station When changing, the data between user equipment and Correspondent Node are transmitted, therefore user equipment establishes the 3rd MPTCP before making the switch Subflow.For example, in a kind of specific application scenarios, when serving BS of the first base station as user equipment, first Base station is that user equipment establishes third subflow, and user equipment is led to using third subflow by first base station and Correspondent Node Letter.When the data traffic between user equipment and Correspondent Node is more than preset threshold, first base station establishes the first subflow, user Equipment and the data of Correspondent Node are mainly transmitted using the first subflow by first base station.

First base station completes the management function to the subflow of user equipment.First base station receives the number of user equipment transmission After packet, data packet is adapted to.Specifically, first base station will add source address in data packet that user sends.Work as use When first MPTCP subflow is communicated with Correspondent Node, source address is the first IP address, when the 3rd MPTCP subflow of use and is led to When letter opposite end is communicated, source address is third IP address.Equally, it is when first base station receives destination address from the first gateway The data packet of first IP address, or from core network gateway receive destination address be third IP address data packet when, it is all right Data packet is adapted to, and the data packet after adaptation is sent to user equipment.

When user equipment switches from first base station to the second base station, the first MPTCP is replaced using the 3rd MPTCP subflow Stream is communicated with Correspondent Node, i.e., only sends data to Correspondent Node by the 3rd MPTCP subflow, and pass through third MPTCP subflow receives the data that Correspondent Node is sent, and does not use the first MPTCP subflow, first base station revocation at this time first MPTCP subflow.

Optionally, after the revocation of the first MPTCP subflow, first base station discharges the first IP address, and indicates that the first gateway is released Put the first IP address.Specifically, the instruction message for discharging the first IP address is sent to the first gateway by first base station.First base station The first IP address is discharged, i.e., no longer occupies the first IP address.First gateway discharges the first IP address, i.e. the first IP address of releasing Binding between user equipment.First IP address can be distributed to other use after discharging the first IP address by the first gateway Family equipment.

803, when the second gateway and the first gateway are not same gateways, the second base station obtains the second IP address, and to use Family equipment establishes the second subflow.

Step 703 in the embodiment in conjunction with corresponding to Fig. 7 is determining the first gateway and the second gateway is not same gateway Afterwards, the second gateway needs to distribute new IP address for user equipment.Wherein, the second gateway is connect with the second base station, the second gateway IP address for user equipment distribution is the second IP address.

The process of the first IP address is obtained in conjunction with first base station in step 801, optionally, the second base station from user equipment or Person's mobility management entity obtains the second IP address, and establishes the 2nd MPTCP subflow, and the 2nd MPTCP subflow is that the second base station makes It is the subflow that user equipment and Correspondent Node are established with the second IP address.

Preferably, in a kind of application scenarios, when user equipment switches to the second base station by first base station, the first subflow It is cancelled after the foundation of the second subflow.Specifically, when user equipment switches to the second base station by first base station, first base station is to Two base stations send the context of MPTCP subflow agency (Proxy), wherein and first base station can directly be sent to the second base station, or Person is sent by mobility management entity, and the context of MPTCP subflow agency may include at least one of lower five kinds of information: MPTCP layer sequence number, for example between first base station and Correspondent Node, token Token, first between first base station and Correspondent Node The address of the sequence number of subflow, the first subflow identifies Address ID, the subflow Agent layer between first base station and Correspondent Node Mapping relations between sequence number and transmission control protocol TCP layer sequence number, for example, the TCP between the first subflow agency and user equipment Sequence number.The context of MPTCP subflow agency (Proxy) includes the whole in above five kinds of information in the present embodiment.When second When the second subflow is established in base station, downlink data tunnel and the second gateway and the second base station between user equipment and the second base station it Between downlink data tunnel can establish simultaneously.The MPTCP Proxy of second base station is that user equipment is established with the second IP address After 2nd MPTCP subflow, the first MPTCP subflow is cancelled.Continue to use the MPTCP layer sequence number, for example of first base station transmission, and with the The address mark (Address ID) of one IP address cancels the first MPTCP subflow by MPTCP layers of signaling.

After 2nd MPTCP subflow is established, optionally, the second base station mainly passes through the 2nd MPTCP subflow transmission user equipment Business datum so that user equipment is communicated with Correspondent Node.By the 2nd MPTCP subflow transmission services data, reduce The volume of transmitted data of 3rd MPTCP subflow, reduces the data load of core network gateway.

804, the second base station cancels the second subflow.

Optionally, the 2nd MPTCP subflow is mainly used for transmitting the business datum of user equipment, when sub by the 2nd MPTCP When spreading defeated data traffic less than preset threshold, the 2nd MPTCP subflow can be cancelled.It is optionally removed the present embodiment provides two kinds The mode of the 2nd MPTCP subflow of pin.

In the mode of the first the 2nd MPTCP subflow of revocation, the second base station determines the number transmitted by the 2nd MPTCP subflow When being less than preset threshold according to flow, the 2nd MPTCP subflow is cancelled, while discharging the second IP address, and indicates the release of the second gateway Second IP address.

In the mode of second of the 2nd MPTCP subflow of revocation, the second base station determines the number transmitted by the 2nd MPTCP subflow When being less than preset threshold according to flow, deletes user equipment and be used for transmission the Internet resources of the 2nd MPTCP subflow, including the 2nd IP The carrying of location and the 2nd MPTCP subflow.When user equipment is in connected state, instruction user equipment cancels the 2nd MPTCP subflow, Indicate that the second gateway discharges the second IP address.User equipment receives the finger of the 2nd MPTCP subflow of revocation of the second base station transmission After showing, the request of the 2nd MPTCP subflow of revocation is sent to Correspondent Node in the 3rd MPTCP subflow.2nd MPTCP subflow is cancelled Afterwards, user equipment discharges the second IP address.

805, user equipment receives downlink data in Idle state.

Based on embodiment corresponding to Fig. 7, the embodiment of the present invention provides another motion management method, is applied to use Family equipment, referring to shown in Fig. 9, comprising the following steps:

901, user equipment establishes the first subflow and third subflow.

Wherein, the first MPTCP subflow is the subflow that user equipment is established using the first IP address and Correspondent Node, the first IP Address is the IP address that the first gateway is user equipment distribution, and the first gateway is connect with first base station.3rd MPTCP subflow is to use The subflow that family equipment is established using third IP address and Correspondent Node, third IP address are that core network gateway distributes for user equipment IP address, core network gateway connect with first base station and the second base station.

Step 701 in the embodiment in conjunction with corresponding to Fig. 7, user equipment are obtained from the first gateway or mobility management entity The first IP address is taken, the first MPTCP subflow is established, user equipment obtains third from core network gateway or mobility management entity IP address establishes the 3rd MPTCP subflow.

902, when user equipment switches from first base station to the second base station, user equipment passes through first using third subflow Base station is communicated with Correspondent Node, and cancels the first subflow.

903, when the second gateway and the first gateway are not same gateways, user equipment obtains the second IP address, and with it is logical The second subflow is established in letter opposite end.

Step 703 in the embodiment in conjunction with corresponding to Fig. 7, the present embodiment provides three kinds of optional user equipmenies to obtain the The mode of two IP address.The first is obtained in the mode of the second IP address, and user equipment passes through the first gateway identification and the second net Pass identifies determining first gateway and the second gateway is not the same gateway, and requests the second gateway for user equipment distribution IP Location, and receive the second IP address that the second gateway is sent.In the mode of second of the second IP address of acquisition, user equipment is by the One IP address or the first gateway identification are sent to mobility management entity, determine the first gateway and by mobility management entity Two gateways are not the same gateways, and requesting the second gateway is that user equipment distributes IP address, is receiving what the second gateway was sent After second IP address, the second IP address is sent to user equipment.The third is obtained in the mode of the second IP address, user equipment Second gateway identification is sent to first base station, first base station judges the second gateway identification and the first gateway identification, such as The second gateway identification of fruit is different from the first gateway identification, then indicates user equipment to the second gateway requests IP address.

After user equipment obtains the second IP address, the 2nd MPTCP subflow is established using the second IP address.Optionally, user Equipment mainly passes through the 2nd MPTCP subflow transmission services data, is communicated with Correspondent Node.It is passed by the 2nd MPTCP subflow Defeated business datum reduces the volume of transmitted data of the 3rd MPTCP subflow, reduces the data load of core network gateway.

904, user equipment cancels the second subflow.

When the data traffic transmitted by the 2nd MPTCP subflow is less than preset threshold, user equipment cancels the 2nd MPTCP Subflow.

Optionally, user equipment is determined when the data traffic transmitted by the 2nd MPTCP subflow is less than preset threshold, is removed The 2nd MPTCP subflow of pin, while the second IP address is discharged, and indicate that the second gateway discharges the second IP address.Alternatively, user equipment After receiving the instruction message of the 2nd MPTCP subflow of revocation of mobility management entity transmission, the 2nd MPTCP subflow is cancelled. Further alternative, after the 2nd MPTCP subflow is deleted, user equipment enters idle (Idle) state.

905, user equipment receives downlink data in Idle state.

Step 705 in the embodiment in conjunction with corresponding to Fig. 7, after user equipment enters Idle state, when mobile management reality When body pages (Page) user equipment, the paging of user device responsive mobility management entity, and under core network gateway reception Row data.

Motion management method provided by the embodiment of the present invention, by establishing subflow, revocation subflow and being greater than not Be managed with sub-stream data, communicated by the first subflow with Correspondent Node when in first base station, when user equipment by When first gateway is to the second gateway handoff, user equipment replaces the first subflow to be communicated with Correspondent Node using third subflow, To guarantee business continuance.After the second subflow is established, user equipment no longer passes through third subflow transmission services data, but logical The second subflow transmission services data are crossed, to reduce core network gateway load, core network gateway are guaranteed other in network Business continuance of the user equipment when carrying out base station switching.

Based on embodiment corresponding to Fig. 8, the embodiment of the present invention provides another motion management method, is applied to the One base station, referring to Fig.1 shown in 0, comprising the following steps:

101, first base station is that user equipment establishes the first subflow and third subflow.

Step 801 in the embodiment in conjunction with corresponding to Fig. 8, first base station complete subflow as subflow agency (Proxy) The functions such as foundation, revocation and the management of different sub-stream data so that not supporting the user equipment of more subflows that can implement yet Motion management method provided by the present invention.Optionally, the step 801 in the embodiment in conjunction with corresponding to Fig. 8, first base station from User equipment or mobility management entity obtain the first IP address, establish the first MPTCP subflow, and first base station is from user equipment Or mobility management entity obtains third IP address, establishes the 3rd MPTCP subflow.

After the subflow of user equipment is established, first base station completes the management function to the subflow of user equipment.First base station The data of user equipment are sended and received, by the first MPTCP subflow in order to which user equipment by the first MPTCP subflow and leads to Letter opposite end is communicated.Specifically, first base station receives the normal data packet that user equipment is sent, will be received from user equipment Normal data packet be converted to the first MPTCP sub-stream data packet, will be by converting resulting first MPTCP sub-stream data Bao Jing One gateway is sent to Correspondent Node.Wherein, the source address of resulting first MPTCP sub-stream data packet is after first base station is converted First IP address.First base station receives the first MPTCP sub-stream data packet that the first gateway is sent, by first base station from the first gateway The first MPTCP sub-stream data packet received is converted to normal data packet, will be sent to by converting resulting normal data packet User equipment, wherein the destination address for the first MPTCP sub-stream data packet that first base station is received from the first gateway is the first IP Address.

102, in user equipment from first base station into the second base station handoff procedure, when user equipment is logical using third subflow When crossing first base station and being communicated with Correspondent Node, first base station cancels the first subflow.

When user equipment switches from first base station to the second base station, the first MPTCP is replaced using the 3rd MPTCP subflow Stream is communicated with Correspondent Node, i.e., only sends data to Correspondent Node by the 3rd MPTCP subflow, and pass through third MPTCP subflow receives the data that Correspondent Node is sent.When first base station sends and receivees user equipment by the 3rd MPTCP subflow Data when, first base station receive user equipment send normal data packet, the normal data packet that will be received from user equipment The 3rd MPTCP sub-stream data packet is converted to, will be sent by converting resulting 3rd MPTCP sub-stream data packet through core network gateway To Correspondent Node.Wherein, the source address of resulting 3rd MPTCP sub-stream data packet is into the 3rd IP after first base station is converted Location.First base station receives the 3rd MPTCP sub-stream data packet that core network gateway is sent, and first base station is received from core network gateway To the 3rd MPTCP sub-stream data packet be converted to normal data packet, user will be sent to by converting resulting normal data packet Equipment.Wherein, the destination address for the 3rd MPTCP sub-stream data packet that first base station is received from core network gateway is for the 3rd IP Location.

When the business datum of user equipment all passes through the transmission of the 3rd MPTCP subflow, first base station cancels the first MPTCP Stream.Optionally, after the revocation of the first MPTCP subflow, first base station discharges the first IP address, and indicates the first gateway release first IP address.

103, first base station determines the second gateway and the first gateway is not same gateway, in order to which user equipment obtains second IP address.

After the revocation of first MPTCP subflow, during user equipment switches from first base station to the second base station, first Base station receives the second gateway identification that user equipment is sent, and the second gateway identification is used to indicate the second gateway, the second base station and the The connection of two gateways.When the second gateway identification and the first gateway identification difference, first base station generation judges instruction message, and judgement refers to Show that message is used to indicate the second gateway and the first gateway is not same gateway.First base station sends judgement instruction to user equipment and disappears Breath, in order to which user equipment obtains the second IP address, the second IP address is the IP address that the second gateway is user equipment distribution.

Optionally, in a kind of application scenarios, when user equipment switches to the second base station by first base station, the first subflow It is cancelled after the foundation of the second subflow.Specifically, when user equipment switches to the second base station by first base station, first base station is to Two base stations send the context of MPTCP subflow agency (Proxy), wherein and first base station can directly be sent to the second base station, or Person is sent by mobility management entity, and the context of MPTCP subflow agency may include at least one of lower five kinds of information: MPTCP layer sequence number, for example between first base station and Correspondent Node, token Token, first between first base station and Correspondent Node The address of the sequence number of subflow, the first subflow identifies Address ID, the subflow Agent layer between first base station and Correspondent Node Mapping relations between sequence number and transmission control protocol TCP layer sequence number, for example, the TCP between the first subflow agency and user equipment Sequence number.The context of MPTCP subflow agency (Proxy) includes the whole in above five kinds of information in the present embodiment.When second When the second subflow is established in base station, downlink data tunnel and the second gateway and the second base station between user equipment and the second base station it Between downlink data tunnel can establish simultaneously.The MPTCP Proxy of second base station is that user equipment is established with the second IP address After 2nd MPTCP subflow, the first MPTCP subflow is cancelled.Continue to use the MPTCP layer sequence number, for example of first base station transmission, and with the The address mark (Address ID) of one IP address cancels the first MPTCP subflow by MPTCP layers of signaling.

The first base station that the embodiment of the present invention provides, by the foundation, revocation and different sub-stream datas of completing subflow The functions such as management pass through so that user equipment is communicated using the first subflow with Correspondent Node stream by first base station First base station is communicated using third subflow with Correspondent Node stream, ensure that the business continuance of user equipment.Meanwhile when with During family equipment switches from first base station to the second base station, first base station judges the first gateway and the second gateway, When the first gateway and the second gateway are not same gateways, instruction message is judged to user equipment transmission, in order to user equipment The second IP address is obtained, and the second IP address is sent to the second base station, is built for user equipment with Correspondent Node by the second base station Vertical second subflow, to reduce the data load of core network gateway.

Through the above description of the embodiments, it is apparent to those skilled in the art that the present invention can be with With hardware realization, perhaps firmware is realized or their combination mode is realized.It when implemented in software, can will be above-mentioned Function storage in computer-readable medium or as on computer-readable medium one or more instruction or code It is transmitted.Computer-readable medium includes computer storage media and communication media, and wherein communication media includes being convenient for from one Any medium of a place to another place transmission computer program.Storage medium can be computer can access it is any Usable medium.As example but be not limited to: computer-readable medium may include RAM (Random Access Memory, at random Memory), ROM (Read Only Memory, read-only memory), EEPROM (Electrically Erasable Programmable Read Only Memory, Electrically Erasable Programmable Read-Only Memory), CD-ROM (Compact Disc Read Only Memory, i.e. CD-ROM) either other optical disc storages, magnetic disk storage medium or other magnetic storage apparatus, Either can be used in carry or store have instruction or data structure form desired program code and can be by calculating Any other medium of machine access.Furthermore.Any connection appropriate can become computer-readable medium.For example, if software Be using coaxial cable, optical fiber cable, twisted pair, DSL (Digital Subscriber Line, digital subscriber line) or The wireless technology of such as infrared ray, radio and microwave etc is transmitted from website, server or other remote sources, then together The wireless technology of shaft cable, optical fiber cable, twisted pair, DSL or such as infrared ray, wireless and microwave etc is included in affiliated Jie In the fixing of matter.As used in the present invention, plate and dish include CD (Compact Disc, compress optical disc), laser disc, optical disc, DVD dish (Digital Versatile Disc, digital universal light), floppy disk and Blu-ray Disc, the usually magnetic duplication of which disk Data, and dish is then with laser come optical replicate data.Combination above should also be as including the protection in computer-readable medium Within the scope of.

The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any Those familiar with the art in the technical scope disclosed by the present invention, can readily occur in variation or replacement, answer It is included within the scope of the present invention.Therefore, protection scope of the present invention is answered described is with scope of protection of the claims It is quasi-.

Claims

1. a kind of mobility management systems characterized by comprising user equipment, first base station, the second base station, the first gateway, Second gateway, core network gateway and Correspondent Node, the user equipment are led to by the first subflow and the Correspondent Node Letter, first subflow are the son that the user equipment is established using the first internetworking protocol IP address and the Correspondent Node Stream, first IP address be first gateway be the user equipment distribution IP address, first gateway with it is described First base station connection,

The user equipment uses for when the user equipment switches from the first base station to second base station Three subflows are communicated by the first base station with the Correspondent Node, and cancel first subflow, the third subflow For the subflow that the user equipment is established using third IP address and the Correspondent Node, the third IP address is the core Net gateway is the IP address of user equipment distribution, the core network gateway and the first base station and second base station Connection；

The user equipment is also used to after first subflow is cancelled, and passes through second base station using the third subflow It is communicated with the Correspondent Node；

The user equipment is also used to the 2nd IP is obtained when second gateway and first gateway are not same gateways Location, and the second subflow is established with the Correspondent Node, second IP address is that second gateway is the user equipment point The IP address matched, second subflow are the son that the user equipment is established using second IP address and the Correspondent Node Stream, second gateway are connect with second base station.

2. system according to claim 1, which is characterized in that

Before the user equipment is communicated by first subflow with the Correspondent Node, when the user equipment with When data traffic between the Correspondent Node is more than preset threshold, the user equipment is also used to obtain the first IP address, and The first subflow is established with the Correspondent Node；

Before the user equipment is from the first base station to second base station switching or the user equipment uses institute It states before third subflow communicated by the first base station with the Correspondent Node, the user equipment is also used to obtain Third IP address, and third subflow is established with the Correspondent Node.

3. system according to claim 1, which is characterized in that

First gateway, for after the instruction message for receiving release first IP address that the user equipment is sent, Discharge first IP address.

4. system according to claim 1, which is characterized in that described not to be with first gateway when second gateway The second IP address is obtained when same gateway, comprising:

When the user equipment is connect with first base station, the first gateway identification that the first base station is sent is received, described the One gateway identification is used to indicate first gateway；

When the user equipment switches from the first base station to second base station, receive that second base station sends the Two gateway identifications, second gateway identification are used to indicate second gateway；

If second gateway identification is different from first gateway identification, the user equipment is sent out to second gateway The request message for obtaining IP address is sent, and receives second IP address that second gateway is sent.

5. system according to claim 1, which is characterized in that the mobility management systems further include mobile management reality Body, the mobility management entity for managing second base station and second gateway, it is described when second gateway with First gateway obtains the second IP address when not being same gateway, comprising:

When the user equipment switches from the first base station to second base station, the user equipment is by the first IP Address or the first gateway identification are sent to the mobility management entity, and first gateway identification is used to indicate described first Gateway；

The mobility management entity determines that first IP address whether be second gateway is user equipment distribution IP address or first gateway identification it is whether identical as the second gateway identification, second gateway identification is used to indicate Second gateway；

If first IP address is not the IP address or described first that second gateway is user equipment distribution Gateway identification is different from second gateway identification, then the mobility management entity is that the user sets to second gateway Standby application distribution IP address, and the user equipment will be sent to from received second IP address of second gateway.

6. system according to claim 1, which is characterized in that described not to be with first gateway when second gateway The second IP address is obtained when same gateway, comprising:

When the user equipment switches from the first base station to second base station, the user equipment is by the second gateway mark Knowledge is sent to the first base station, and second gateway identification is used to indicate second gateway；

If second gateway identification is different from the first gateway identification, the first base station is sentenced to user equipment transmission Disconnected instruction message, first gateway identification are used to indicate first gateway, and the judgement instruction message is used to indicate described Second gateway and first gateway are not same gateways；

The user equipment disappears after receiving the judgement instruction message to the request that second gateway sends acquisition IP address Breath, and receive second IP address that second gateway is sent.

7. system according to claim 1, which is characterized in that

After second subflow foundation, when the data traffic between the user equipment and the Correspondent Node is less than default threshold When value, the user equipment is also used to cancel second subflow.

8. system according to claim 1, which is characterized in that

The mobility management systems further include mobility management entity, and the mobility management entity is for managing described second Base station and second gateway；

After second subflow foundation, when the data traffic between the user equipment and the Correspondent Node is less than default threshold When value, the mobility management entity is used to indicate the user equipment and cancels second subflow；

The user equipment is also used to cancel second subflow.

9. according to system described in claim 7 or 8, which is characterized in that

The user equipment is also used to after cancelling second subflow, discharges second IP address, and indicate described second Gateway discharges second IP address；

Second gateway, for discharging second IP address.

10. system according to claim 1, which is characterized in that

After second subflow foundation, when the data traffic between the user equipment and the Correspondent Node is less than default threshold When value, second base station is used to indicate the user equipment and cancels second subflow, and indicates the second gateway release Second IP address；

Second gateway, for discharging second IP address.

11. system according to claim 10, which is characterized in that

The core network gateway, for caching the downlink data of the user equipment after the user equipment enters Idle state, And the downlink data notification of the user equipment is sent to mobility management entity；

The mobility management entity, the downlink data for being also used to receive the user equipment that the core network gateway is sent are logical Know, and pages the user equipment；

12. system according to claim 11, which is characterized in that

The mobility management entity is also used to indicate the core network gateway to described after the user device responsive is paged User equipment sends downlink data；

13. system according to claim 1, which is characterized in that

The mobility management systems further include: mobility management entity, online charging system OCS and strategy and charging regulation Function PCRF,

The mobility management entity, for obtaining the available amount of the user equipment from the line charge system, and by institute The available amount for stating user equipment is sent to first gateway；

The mobility management entity is also used to obtain the charging rule of the user equipment from the "Policy and Charging Rules Function Then, and by the charging regulation of the user equipment it is sent to first gateway；

First gateway is also used to when user equipment is communicated by first subflow with the Correspondent Node, root The available amount of the user equipment is reduced according to the charging regulation of the user equipment, and is sent to online charging system The available credit balance of the user equipment.

14. system according to claim 1, which is characterized in that

First gateway is also used to send the user equipment if first gateway to the mobility management entity It is single；

The mobility management entity, for the user equipment to be singly sent to offline charging system if first gateway System.

15. a kind of mobility management systems characterized by comprising user equipment, first base station, the second base station, the first net It closes, the second gateway, core network gateway and Correspondent Node, the user equipment are carried out by the first subflow and the Correspondent Node Communication, first subflow be the first base station using the first internetworking protocol IP address be the user equipment with it is described The subflow that Correspondent Node is established, first IP address are the IP address that first gateway is user equipment distribution, institute The first gateway is stated to connect with the first base station,

The user equipment uses for when the user equipment switches from the first base station to second base station Three subflows are communicated by the first base station with the Correspondent Node, and the third subflow is that the first base station uses the The subflow that three IP address and the Correspondent Node are established, the third IP address are that the core network gateway is the user equipment The IP address of distribution, the core network gateway are connect with the first base station and second base station；

The first base station is also used to cancel first subflow；

Second base station, for obtaining the 2nd IP when second gateway and first gateway are not same gateways Location, and the second subflow is established for the user equipment and the Correspondent Node, second IP address is that second gateway is The IP address of user equipment distribution, it using second IP address is the use that second subflow, which is second base station, The subflow that family equipment and the Correspondent Node are established, second gateway are connect with second base station.

16. system according to claim 15, which is characterized in that

Before the user equipment is communicated by first subflow with the Correspondent Node, when the user equipment with When data traffic between the Correspondent Node is more than preset threshold, the first base station is also used to obtain the first IP address, and The first subflow is established for the user equipment and the Correspondent Node；

Before the user equipment is from the first base station to second base station switching or the user equipment uses institute It states before third subflow communicated by the first base station with the Correspondent Node, the first base station is also used to obtain Third IP address, and third subflow is established for the user equipment and the Correspondent Node.

17. system according to claim 15, which is characterized in that

First gateway, for after the instruction message for receiving release first IP address that the first base station is sent, Discharge first IP address.

18. system according to claim 15, which is characterized in that

When the user equipment switches from the first base station to second base station, when first gateway and described second When gateway is not same gateway, the first base station, which is also used to send the first subflow to second base station, acts on behalf of the upper of Proxy Hereafter, the context of the first subflow agency includes at least at least one of following information:

Subflow between the first base station and the Correspondent Node acts on behalf of layer sequence number, for example, token Token, the first base station with The sequence number of first subflow between the Correspondent Node, the address of first subflow identifies Address ID, described Subflow between first base station and the Correspondent Node acts on behalf of reflecting between layer sequence number, for example and transmission control protocol TCP layer sequence number, for example Penetrate relationship, the TCP sequence number between the first subflow agency and the user equipment.

19. system according to claim 15, which is characterized in that

After second subflow foundation, when the data traffic between the user equipment and the Correspondent Node is less than default threshold When value, second base station is also used to cancel second subflow.

20. system according to claim 19, which is characterized in that

Second base station is also used to after cancelling second subflow, discharges second IP address, and indicate described second Gateway discharges second IP address；

Second gateway, for discharging second IP address.

21. system according to claim 15, which is characterized in that

After second subflow foundation, when the data traffic between the user equipment and the Correspondent Node is less than default threshold When value, second base station indicates that second gateway discharges second IP address for cancelling second subflow；

Second base station is also used to discharge second IP address；

Second gateway, for discharging second IP address.

22. a kind of user equipment characterized by comprising multipath control unit and receiving unit, the user equipment are logical It crosses the first subflow to be communicated with Correspondent Node, first subflow is that the user equipment uses the first internetworking protocol IP The subflow that address and the Correspondent Node are established, first IP address are IP that the first gateway is user equipment distribution Location, first gateway are connect with first base station,

The multipath control unit, for using when the user equipment switches from the first base station to the second base station Third subflow is communicated by the first base station with the Correspondent Node, and cancels the first subflow, and the third subflow is The subflow that the user equipment is established using third IP address and the Correspondent Node, the third IP address is core network gateway For the IP address of user equipment distribution, the core network gateway is connect with the first base station and second base station, The subflow that first subflow is established for the user equipment using the first IP address and the Correspondent Node, the first IP Location is the IP address that first gateway is user equipment distribution, and first gateway is connect with the first base station；

The multipath control unit is also used to after first subflow is cancelled, and passes through described the using the third subflow Two base stations are communicated with the Correspondent Node；

The receiving unit, for obtaining the second IP address, institute when the second gateway and first gateway are not same gateways Stating the second IP address is the IP address that second gateway is the user equipment distribution, second gateway and second base It stands connection；

The multipath control unit, is also used to establish the second subflow with the Correspondent Node, and second subflow is the use The subflow that family equipment is established using second IP address and the Correspondent Node.

23. user equipment according to claim 22, which is characterized in that

Before the user equipment is communicated by first subflow with the Correspondent Node, when the user equipment with When data traffic between the Correspondent Node is more than preset threshold, the receiving unit is also used to obtain the first IP address；

Before the user equipment is from the first base station to second base station switching or the user equipment uses institute It states before third subflow communicated by the first base station with the Correspondent Node, the receiving unit is also used to obtain Third IP address；

24. user equipment according to claim 22, which is characterized in that

The multipath control unit is also used to after first subflow cancels, and discharges first IP address, and generate Discharge the instruction message of first IP address；

The user equipment further includes transmission unit, for sending the instruction for discharging first IP address to first gateway Message, in order to which first gateway discharges first IP address.

25. user equipment according to claim 22, which is characterized in that

The receiving unit, is also used to receive the first gateway identification that the first base station is sent, and first gateway identification is used In instruction first gateway；

The receiving unit, is also used to receive the second gateway identification that second base station is sent, and second gateway identification is used In instruction second gateway；

The multipath control unit is also used to judge whether second gateway identification and first gateway identification are identical, If second gateway identification is different from first gateway identification, the request message for obtaining IP address is generated；

The user equipment further includes transmission unit, is disappeared for sending the request for obtaining IP address to second gateway Breath；

26. user equipment according to claim 22, which is characterized in that

The user equipment further includes transmission unit, for when the user equipment is from the first base station to second base station When switching, first IP address or the first gateway identification are sent to mobility management entity, in order to the mobility Management entity determines whether are second gateway and first gateway according to first IP address or the first gateway identification It for same gateway, and is the use to second gateway when second gateway and first gateway are not same gateways Family equipment application distributes IP address, will be sent to the user equipment from received second IP address of second gateway, First gateway identification is used to indicate first gateway, the mobility management entity for manage second base station and Second gateway；

27. user equipment according to claim 22, which is characterized in that the user equipment further includes transmission unit, is used In when the user equipment switches from the first base station to second base station, the second gateway identification is sent to described One base station, in order to which the first base station determines second gateway and whether first gateway is same gateway, described the Two gateway identifications are used to indicate second gateway；

The receiving unit, is also used to receive the judgement instruction message that the first base station is sent, and the judgement instruction message is used In indicating second gateway and first gateway is not same gateway；

28. user equipment according to claim 22, which is characterized in that

After second subflow foundation, the multipath control unit is also used to determine that the user equipment communicates pair with described Whether the data traffic between end is less than preset threshold；

When the data traffic between the user equipment and the Correspondent Node is less than preset threshold, the multipath control is single Member is also used to cancel second subflow, and discharges second IP address.

29. user equipment according to claim 22, which is characterized in that

The receiving unit is also used to receive revocation second son of mobility management entity or second base station transmission The instruction message of stream, the mobility management entity is for managing second base station and second gateway；

The multipath control unit is also used to receive the mobility management entity or described in the receiving unit After the instruction message for revocation second subflow that two base stations are sent, second subflow is cancelled, and with discharging the 2nd IP Location.

30. user equipment according to claim 22, which is characterized in that

The user equipment further includes transmission unit, for sending release second IP address to second gateway Instruction message.

31. user equipment according to claim 30, which is characterized in that

The user equipment further includes status control unit, for releasing in the transmission unit to described in second gateway transmission After the instruction message for putting second IP address, controls the user equipment and enter Idle state；

The receiving unit is also used to receive the paging of mobility management entity；

The user equipment further includes transmission unit, for sending the page-response message to the mobility management entity；

The receiving unit is also used to send the page-response message to the mobility management entity in the user equipment Afterwards, the downlink data of the user equipment is received from the core network gateway.

32. a kind of first base station, which is characterized in that including subflow agent unit and Transmit-Receive Unit；

The Transmit-Receive Unit, for sending and receiving the data of user equipment by the first subflow, in order to which user equipment passes through First subflow is communicated with Correspondent Node, wherein first subflow is that the first base station is internet mutual using first Even Protocol IP address is the subflow that the user equipment and the Correspondent Node are established, and first IP address is that the first gateway is The IP address of the user equipment distribution, first gateway are connect with the first base station；

The Transmit-Receive Unit is also used to pass through third when the user equipment switches from the first base station to the second base station Subflow sends and receivees the data of user equipment, in order to which user equipment is carried out by the third subflow and the Correspondent Node Communication, wherein the third subflow is the subflow that the user equipment is established using third IP address and the Correspondent Node, institute Stating third IP address is the IP address that core network gateway is user equipment distribution, the core network gateway and first base It stands and second base station connects；

The subflow agent unit, for cancelling first subflow；

After first subflow is cancelled, the user equipment passes through second base station and the communication using the third subflow Opposite end is communicated；

When the second gateway and first gateway are not same gateways, the user equipment obtains the second IP address, and with institute It states Correspondent Node and establishes the second subflow, second IP address is IP that second gateway is the user equipment distribution Location, second subflow is the subflow that the user equipment is established using second IP address and the Correspondent Node, described Second gateway is connect with second base station.

33. first base station according to claim 32, which is characterized in that

The Transmit-Receive Unit, the normal data packet sent specifically for receiving the user equipment, is also used to receive described first The first sub-stream data packet that gateway is sent；

The subflow agent unit, specifically for the normal data for receiving the Transmit-Receive Unit from the user equipment Packet is converted to the first sub-stream data packet, be also used to receive the Transmit-Receive Unit from first gateway described first Sub-stream data packet is converted to the normal data packet；

The Transmit-Receive Unit is also used to convert the resulting first sub-stream data packet by the subflow agent unit through institute It states the first gateway and is sent to the Correspondent Node, be also used to that the resulting criterion numeral will be converted by the subflow agent unit The user equipment is sent to according to packet.

34. first base station according to claim 32, which is characterized in that

The Transmit-Receive Unit is also used to obtain first IP address；

The subflow agent unit, is also used for first IP address and the Correspondent Node establishes first subflow, In order to which user equipment is communicated by first subflow with the Correspondent Node；

The Transmit-Receive Unit is also used to obtain the third IP address；

The subflow agent unit, is also used for the third IP address and the Correspondent Node establishes the third subflow, In order to which the user equipment is communicated by the third subflow with the Correspondent Node.

35. first base station according to claim 32, which is characterized in that

The subflow agent unit is also used to after first subflow cancels, and discharges first IP address, and generate and release Put the instruction message of first IP address；

Transmitter, for sending the finger for release first IP address that the subflow agent unit generates to first gateway Show message.

36. first base station according to claim 32, which is characterized in that

The Transmit-Receive Unit is also used to when the user equipment switches from the first base station to the second base station, described in reception The second gateway identification that user equipment is sent, second gateway identification are used to indicate the second gateway, second base station and institute State the connection of the second gateway；

The subflow agent unit is also used to when second gateway identification and the first gateway identification difference, is generated judgement and is referred to Show message, it is not same gateway that the judgement instruction message, which is used to indicate second gateway and first gateway,；

The Transmit-Receive Unit is also used to send the judgement instruction message to the user equipment, in order to the user equipment The second IP address is obtained, second IP address is the IP address that second gateway is the user equipment distribution.

37. first base station according to claim 36, which is characterized in that

When the user equipment switches from the first base station to second base station, when first gateway and described second When gateway is not same gateway, the Transmit-Receive Unit is also used to send the first subflow to second base station and acts on behalf of the upper of Proxy Hereafter, the context of the first subflow agency includes at least at least one of following information:

38. a kind of motion management method characterized by comprising

User equipment is communicated by the first subflow with Correspondent Node, and first subflow is that the user equipment uses first The subflow that internetworking protocol IP address and the Correspondent Node are established, first IP address are that the first gateway is the user The IP address of equipment distribution, first gateway are connect with first base station；

When the user equipment switches from first base station to the second base station, the user equipment is passed through described using third subflow First base station is communicated with Correspondent Node, and cancels first subflow, and the third subflow is user equipment use The subflow that third IP address and the Correspondent Node are established, the third IP address are that core network gateway divides for the user equipment The IP address matched, the core network gateway are connect with the first base station and second base station；

39. according to the method for claim 38, which is characterized in that

Before the user equipment is communicated by first subflow with the Correspondent Node, when the user equipment and institute When stating the data traffic between Correspondent Node more than preset threshold, the method also includes: the user equipment obtains the first IP Address, and the first subflow is established with the Correspondent Node；

Before the user equipment is from the first base station to second base station switching or described in the user equipment use Before third subflow is communicated by the first base station with the Correspondent Node, the method also includes: the user sets It is standby to obtain third IP address, and third subflow is established with the Correspondent Node.

40. according to the method for claim 38, which is characterized in that after the first subflow revocation, the method is also wrapped It includes:

The user equipment discharges first IP address, and the finger for discharging first IP address is sent to first gateway Show message；

First gateway discharges institute after the instruction message for receiving release first IP address that the user equipment is sent State the first IP address.

41. according to the method for claim 38, which is characterized in that described to work as second gateway and first gateway not The second IP address is obtained when being same gateway, comprising:

42. according to the method for claim 38, which is characterized in that described to work as second gateway and first gateway not The second IP address is obtained when being same gateway, comprising:

When the user equipment switches from the first base station to second base station, the user equipment is by the first IP Address or the first gateway identification are sent to mobility management entity, and first gateway identification is used to indicate first net It closes, the mobility management entity is for managing second base station and second gateway；

43. according to the method for claim 38, which is characterized in that described to work as second gateway and first gateway not The second IP address is obtained when being same gateway, comprising:

The user equipment sends the request message for obtaining IP address after reception judges instruction message to second gateway, and Receive second IP address that second gateway is sent.

44. according to the method for claim 38, which is characterized in that the user equipment obtains the second IP address, and with institute Correspondent Node is stated to establish after the second subflow, the method also includes:

When the data traffic transmitted by second subflow is less than preset threshold, user equipment revocation second son Stream.

45. according to the method for claim 38, which is characterized in that the user equipment obtains the second IP address, and with institute Correspondent Node is stated to establish after the second subflow, the method also includes:

When the data traffic transmitted by second subflow is less than preset threshold, mobility management entity indicates the user Second subflow described in device revocation, the mobility management entity is for managing second base station and second gateway；

The user equipment cancels second subflow.

46. according to method described in claim 44 or 45, which is characterized in that the user equipment cancels second subflow Later, the method also includes:

47. according to the method for claim 38, which is characterized in that the user equipment obtains the second IP address, and with institute Correspondent Node is stated to establish after the second subflow, the method also includes:

When the data traffic transmitted by second subflow is less than preset threshold, second base station indicates that the user sets It is standby to cancel second subflow, and indicate that second gateway discharges second IP address, mobility management entity is for managing Manage second base station and second gateway；

The user equipment cancels second subflow, and discharges second IP address；

Second gateway discharges second IP address.

48. according to the method for claim 47, which is characterized in that the user equipment cancels second subflow, and releases After putting second IP address, the method also includes:

The user equipment enters Idle state；

The core network gateway caches the downlink data of the user equipment after the user equipment enters Idle state, and to institute State the downlink data notification that mobility management entity sends the user equipment；

The mobility management entity receives the downlink data notification for the user equipment that the core network gateway is sent, and seeks Exhale the user equipment；

49. according to the method for claim 48, which is characterized in that mobility management entity described in the user device responsive Paging after, the method also includes:

The mobility management entity indicates that the core network gateway is set to the user after user device responsive paging Preparation send downlink data.

50. according to the method for claim 38, which is characterized in that the method also includes:

Mobility management entity obtains the available amount of the user equipment from online charging system OCS, and the user is set Standby available amount is sent to first gateway；

The mobility management entity obtains the charging regulation of the user equipment from "Policy and Charging Rules Function PCRF, and will The charging regulation of the user equipment is sent to first gateway；

First gateway is when user equipment is communicated by first subflow with the Correspondent Node, according to the use The charging regulation of family equipment reduces the available amount of the user equipment, and sends the user to online charging system The available credit balance of equipment.

51. according to the method for claim 38, which is characterized in that the method also includes:

The user equipment is singly sent to off-line accounting system OFCS if first gateway by mobility management entity.

52. a kind of motion management method characterized by comprising

User equipment is communicated by the first subflow with Correspondent Node, and first subflow is that first base station is internet using first Interconnection agreement IP address is the subflow that the user equipment and the Correspondent Node are established, and first IP address is the first gateway For the IP address of user equipment distribution, first gateway is connect with first base station；

When the user equipment switches from the first base station to the second base station, the user equipment is passed through using third subflow The first base station is communicated with the Correspondent Node, and the third subflow is that the first base station is using third IP address The subflow that the user equipment and the Correspondent Node are established, the third IP address are that core network gateway is the user equipment The IP address of distribution, the core network gateway are connect with the first base station and second base station；

The first base station cancels first subflow；

When the second gateway and first gateway are not same gateways, second base station obtains the second IP address, and is institute It states user equipment and the Correspondent Node establishes the second subflow, second IP address is that second gateway is that the user sets The IP address that back-up is matched, it using second IP address is the user equipment and institute that second subflow, which is second base station, The subflow of Correspondent Node foundation is stated, second gateway is connect with second base station.

53. method according to claim 52, which is characterized in that

Before the user equipment is communicated by first subflow with the Correspondent Node, when the user equipment and institute When stating the data traffic between Correspondent Node more than preset threshold, the method also includes: the first base station obtains the first IP Address, and the first subflow is established for the user equipment and the Correspondent Node；

Before the user equipment is from the first base station to second base station switching or described in the user equipment use Before third subflow is communicated by the first base station with the Correspondent Node, the method also includes: first base It stands and obtains third IP address, and establish third subflow for the user equipment and the Correspondent Node.

54. method according to claim 52, which is characterized in that after the first base station cancels first subflow, The method also includes:

The first base station discharges first IP address, and the finger for discharging first IP address is sent to first gateway Show message；

First gateway, after the instruction message for receiving release first IP address that the first base station is sent, release First IP address.

55. method according to claim 54, which is characterized in that in the user equipment from the first base station to described When second base station switches, when first gateway and second gateway are not same gateways, the first base station is also used to The context that the first subflow acts on behalf of Proxy is sent to second base station, the context of the first subflow agency includes at least At least one of following information:

56. method according to claim 52, which is characterized in that second base station obtains the second IP address, and is institute It states user equipment and the Correspondent Node is established after the second subflow, the method also includes:

When the data traffic between the user equipment and the Correspondent Node is less than preset threshold, the second base station revocation Second subflow.

57. method according to claim 56, which is characterized in that after second base station cancels second subflow, The method also includes:

58. method according to claim 52, which is characterized in that second base station obtains the second IP address, and is institute It states user equipment and the Correspondent Node is established after the second subflow, the method also includes:

When the data traffic between the user equipment and the Correspondent Node is less than preset threshold, the second base station revocation Second subflow, and indicate that second gateway discharges second IP address；

Second base station discharges second IP address；

Second gateway discharges second IP address.

59. a kind of motion management method is applied to user equipment characterized by comprising

The user equipment is communicated by the first subflow with Correspondent Node, and first subflow is user equipment use The subflow that first internetworking protocol IP address and the Correspondent Node are established, it is described that first IP address, which is the first gateway, The IP address of user equipment distribution, first gateway are connect with first base station；

After the first subflow revocation, the user equipment passes through second base station and the communication using the third subflow Opposite end is communicated；

When the second gateway and first gateway are not same gateways, the user equipment obtains the second IP address, and described the Two IP address are the IP address that second gateway is the user equipment distribution, and establish the second son with the Correspondent Node Stream, second subflow is the subflow that the user equipment is established using second IP address and the Correspondent Node, described Second gateway is connect with second base station.

60. method according to claim 59, which is characterized in that

Before the user equipment is communicated by first subflow with the Correspondent Node, when the user equipment with When data traffic between the Correspondent Node is more than preset threshold, the method also includes: the user equipment obtains first IP address, and the first subflow is established with the Correspondent Node；

Before the user equipment is from the first base station to second base station switching or the user equipment uses institute It states before third subflow communicated by the first base station with the Correspondent Node, the method also includes: the user Equipment obtains third IP address, and establishes third subflow with the Correspondent Node.

61. method according to claim 59, which is characterized in that the user equipment cancels it in first subflow Afterwards, the method also includes:

62. method according to claim 59, which is characterized in that described to work as second gateway and first gateway not When being same gateway, the user equipment obtains the second IP address, comprising:

The user equipment receives the first gateway identification that the first base station is sent, and first gateway identification is used to indicate institute State the first gateway；

The user equipment receives the second gateway identification that second base station is sent, and second gateway identification is used to indicate institute State the second gateway；

The user equipment judges whether second gateway identification and first gateway identification are identical, if second net Pass mark is different from first gateway identification, then generates the request message for obtaining IP address；

The user equipment receives second IP address that second gateway is sent.

63. method according to claim 59, which is characterized in that described to work as second gateway and first gateway not When being same gateway, the user equipment obtains the second IP address, comprising:

When the user equipment switches from the first base station to second base station, the user equipment is by the first IP Address or the first gateway identification are sent to mobility management entity, in order to which the mobility management entity is according to described first IP address or the first gateway identification determine second gateway and whether first gateway is same gateway, and described the IP address is distributed for the user device applies to second gateway when two gateways and first gateway are not same gateways, The user equipment will be sent to from received second IP address of second gateway, first gateway identification is for referring to Show first gateway, the mobility management entity is for managing second base station and second gateway；

64. method according to claim 59, which is characterized in that described to work as second gateway and first gateway not When being same gateway, the user equipment obtains the second IP address, comprising:

When the user equipment switches from the first base station to second base station, the user equipment is by the second gateway mark Knowledge is sent to the first base station, in order to which the first base station determines whether second gateway with first gateway is same One gateway, second gateway identification are used to indicate second gateway；

The user equipment receives the judgement instruction message that the first base station is sent, and the judgement instruction message is used to indicate institute Stating the second gateway and first gateway is not same gateway；

The user equipment generates the request message for obtaining IP address；

The user equipment receives second IP address that second gateway is sent.

65. method according to claim 59, which is characterized in that the user equipment obtains the second IP address, and with institute Correspondent Node is stated to establish after the second subflow, the method also includes:

When the data traffic between the user equipment and the Correspondent Node is less than preset threshold, the user equipment revocation Second subflow, and discharge second IP address.

66. method according to claim 59, which is characterized in that the user equipment obtains the second IP address, and with institute Correspondent Node is stated to establish after the second subflow, the method also includes:

The finger for cancelling second subflow that the user equipment receives mobility management entity or second base station is sent Show message, the mobility management entity is for managing second base station and second gateway；

In revocation second son that the receiver receives the mobility management entity or second base station is sent After the instruction message of stream, the user equipment cancels second subflow, and discharges second IP address.

67. method according to claim 66, which is characterized in that the user equipment cancels second subflow, and releases After putting second IP address, the method also includes:

68. method according to claim 67, which is characterized in that the user equipment is to described in second gateway transmission After the instruction message for discharging second IP address, the method also includes:

The user equipment enters Idle state, and the paging of the mobility management entity is received after entering Idle state, and generation is sought Response message is exhaled, and sends the page-response message to the mobility management entity；

The user equipment receives the core net net after sending the page-response message to the mobility management entity Close the downlink data of the user equipment sent.

69. a kind of motion management method is applied to first base station characterized by comprising

The first base station sends and receivees the data of user equipment by the first subflow, in order to which the user equipment passes through institute It states the first subflow to be communicated with Correspondent Node, wherein first subflow is that the first base station uses the first internetworking Protocol IP address is the subflow that the user equipment and the Correspondent Node are established, and first IP address is the first gateway for institute The IP address of user equipment distribution is stated, first gateway is connect with the first base station；

When the user equipment switches from the first base station to the second base station, the first base station is received by third subflow With send user equipment data, in order to which user equipment is communicated by the third subflow with the Correspondent Node, In, the third subflow is the subflow that the user equipment is established using third IP address and the Correspondent Node, the third IP address is the IP address that core network gateway is user equipment distribution, the core network gateway and the first base station and The second base station connection；

When the first base station no longer sends and receivees the data of the user equipment by first subflow, described first Base station cancels first subflow；

70. method according to claim 69, which is characterized in that

The first base station sends and receivees the data of user equipment by the first subflow, in order to which user equipment passes through described the One subflow is communicated with Correspondent Node, comprising:

The first base station receives the normal data packet that the user equipment is sent, described in receiving from the user equipment Normal data packet is converted to the first sub-stream data packet, will be by converting the resulting first sub-stream data packet through first net Pass is sent to the Correspondent Node；

The first base station receives the first sub-stream data packet that first gateway is sent, by the first base station from described The first sub-stream data packet that first gateway receives is converted to the normal data packet, will be by converting the resulting mark Quasi- data packet is sent to the user equipment；

The first base station sends and receivees the data of user equipment by third subflow, in order to which user equipment passes through described the Three subflows are communicated with Correspondent Node, comprising:

The first base station receives the normal data packet that the user equipment is sent, described in receiving from the user equipment Normal data packet is converted to third sub-stream data packet, will be by converting the resulting third sub-stream data packet through the core net Gateway is sent to the Correspondent Node；

The first base station receives the third sub-stream data packet that the core network gateway is sent, by the first base station from institute It states the third sub-stream data packet that core network gateway receives and is converted to the normal data packet, it will be by converting resulting institute It states normal data packet and is sent to the user equipment.

71. method according to claim 69, which is characterized in that

The first base station obtains first IP address, and establishes institute using first IP address and the Correspondent Node State the first subflow；

The first base station obtains the third IP address, and establishes institute using the third IP address and the Correspondent Node State third subflow.

72. method according to claim 69, which is characterized in that after the first base station cancels first subflow, The method also includes:

73. method according to claim 69, which is characterized in that after the first base station cancels first subflow, The method also includes:

The first base station receives the second gateway identification that the user equipment is sent, and second gateway identification is used to indicate the Two gateways, second base station are connect with second gateway；

When second gateway identification and the first gateway identification difference, the first base station generation judges instruction message, described Judging that instruction message is used to indicate second gateway and first gateway is not same gateway；

The first base station sends the judgement instruction message to the user equipment, in order to which the user equipment obtains second IP address, second IP address are the IP address that second gateway is the user equipment distribution.

74. the method according to claim 73, which is characterized in that in the user equipment from the first base station to described When second base station switches, when first gateway and second gateway are not same gateways, the first base station is to described Second base station sends the context that the first subflow acts on behalf of Proxy, and the context of the first subflow agency includes at least following letter At least one of breath: