CN103731929B - Load bearing management method, apparatus and system - Google Patents

Abstract

The invention discloses a kind of load bearing management methods, apparatus and system, wherein the above method includes: that controller receives the request that the management of the gateway in first network carries；The gateway management of forwarding of the controller according to the request of management carrying into the second network carries, wherein the second network is the communication network for supporting control layer to separate with forwarding.The technical solution provided according to the present invention, solve the problems, such as how to carry out intercommunication between the traditional in the related technology communication network for not supporting control and forward separating and the communication network for supporting control and forward separating, improves the compatibility and the scope of application for supporting the communication network of control and forward separating.

Description

Load bearing management method, apparatus and system

Technical field

The present invention relates to the communications fields, in particular to a kind of load bearing management method, apparatus and system.

Background technique

In order to keep 3-G (Generation Three mobile communication system) in the competitiveness of the communications field, for user provide rate faster, time delay Lower, more personalized mobile communication service, while the operation cost of operator, third generation partner program can also be reduced (3rd Generation Partnership Project, referred to as 3GPP) standard working group is committed to evolved packet system The research of (Evolved Packet System, abbreviation EPS).Entire EPS system can be divided into wireless access network and core net two Part.In the core network, home subscriber server (Home Subscriber Server, referred to as HSS), mobility are contained Management entity (Mobility Management Entity, referred to as MME), Serving GPRS Support Node (Serving GPRS Support Node, referred to as SGSN), policy charging rule function (Policy and Charging Rule Function, Referred to as PCRF), gateway (Serving Gateway, referred to as S-GW), packet data gateway (PDN Gateway, letter Referred to as P-GW) and packet data network (Packet Data Network, referred to as PDN).Functions will be carried out below It is discussed in detail:

Home subscriber server contains home location register (Home Location Register, referred to as HLR) Institute it is functional, be the permanent storage place of user contracting data, positioned at user signing home network.

Mobility management entity is storage place of the user contracting data in current network, is responsible for the non-of terminal to network Tracking and paging under access layer signaling management, the safety verification function of terminal, the mobile management of terminal, user's idle mode Management function and bearer management.

Serving GPRS Support Node is the business support point of GERAN and UTRAN user access core network network, functionally with Mobility management entity is similar, is responsible for the functions such as location updating, paging management and the bearer management of user.

Gateway is gateway of the core net to wireless system, and it is empty to user plane bearer, the terminal of core net to be responsible for terminal Function, Lawful Interception and the packet routing and forwarding capability of data buffer storage, network side initiating business request under not busy mode； Gateway is responsible for the case where counting user terminal is using wireless network, and generates the ticket that terminal uses wireless network, sends meter to Take gateway.

Packet data gateway, is the gateway of evolution system He the exterior packet data network, it is connected to internet On packet data network, it is responsible for the distribution of the Internet protocol address (Internet Protocol, referred to as IP), the meter of terminal Take the functions such as function, grouping packet filtering, policy control.

Universal Wireless Packet Service (General Packet Radio Service, referred to as GPRS) gateway support node (Gateway GPRS Support Node, referred to as GGSN) supports the edge routing function of GPRS network, i.e. GGSN to be responsible for The data of GPRS network are subjected to routing forwarding, and protect the complete of GPRS network data by firewall and filtering function Property；GGSN also has billing function.

PGW contains the repertoire of GGSN, i.e., it is believed that a subfunction of the GGSN as PGW, is embedded in PGW. Therefore, SGSN can be connected directly with PGW, use Gn/Gp interface.

Packet data network, is the IP operation network of operator, which is provided by the core net of operator for user IP service.

Policy charging rule functional entity is to be responsible for providing charging control, online diameter credit control, thresholding control in evolution system The server of system, service quality (Quality of Service, referred to as QoS) strategy aspect rule.

Wireless access network includes wireless side network element, and such as evolution base station (E-UTRAN NodeB, abbreviation eNB), it is main The transmitting-receiving for being responsible for wireless signal is managed the radio resource of air interface, scheduling of resource, is connect by air interface and terminal contact Enter control.

EPS, by development in 6 years, has been gradually introduced new function since 2006 introduce from the 3GPP R8 stage, and every The introducing of one subfunction will nearly all be related to the modification of these above-mentioned functional network elements.On the one hand above-mentioned modification makes carrier network Upgrade cost is got higher, on the other hand since different equipment is that different equipment manufacturer provides, branch of the different network elements to different functions The degree of holding is difficult to unified can also bring and much docks test problems.

And Stanford Univ USA proposed a kind of OpenFlow agreement in 2008, the agreement is using forwarding/control point From framework, external control face entity realizes various forwarding logics using OpenFlow protocol integrated test system forwarding surface equipment, and forwarding surface Equipment major function, which is that, executes controlled forwarding according to the flow table that OpenFlow controller issues, and behavior is standardized: A message is received, its head related words segment value is obtained, flow table, after being matched to corresponding list item, root are searched using it as keyword Message field (MFLD) is converted according to the instruction set in contents in table, a certain logic or physics are forwarded to according to instruction after being disposed Port.The further evolution of the agreement, become software defined network technology (Software Defined Network, referred to as SDN), it can the network application of various complexity is realized using software programming in control plane, and forwarding surface equipment changes without any Become, since control plane uses generic server+general-purpose operating system, and general software programming tool can be used, it can also To use scripting programming language as Python to realize, this makes the support of new network protocol become very simple, and New technology deployment cycle greatly shortens.

Mobile communication system in the related technology experienced a series of function enhancing, including introduce the technologies such as shunting, this The enhancing of a little functions requires the new protocol specification braking period of 1-2, is then realized by equipment supplier, operator It is tested, then can just be disposed, this makes the introducing period of network new features very very long and of a high price.For It is longer to solve the problems, such as in mobile communications network that new features introduce the period, the control separation architecture of OpenFlow is introduced into shifting In dynamic network, OpenFlow agreement is extended for the demand of mobile network.Thus in mobile network's evolution development process In, supported after upgrading the network of Openflow by with the traditional network Long Coexistence of not supporting Openflow, at this time, it may be necessary to consider At present traditional network and support Openflow network between the problem of how carrying out intercommunication.

For the communication network for not supporting control and forward separating traditional in the related technology and support control and forwarding point From communication network between how to carry out intercommunication the problem of, currently no effective solution has been proposed.

Summary of the invention

The present invention provides a kind of bearer management scheme, at least to solve traditional in the related technology not support control and turn Send out the problem of how carrying out intercommunication between isolated communication network and the communication network for supporting control and forward separating.

According to an aspect of the invention, there is provided a kind of load bearing management method, comprising: controller is received from first The request of the management carrying of gateway in network；The controller is according to the request of the management carrying to second net The gateway management of forwarding in network carries, wherein second network is the communication network for supporting control layer to separate with forwarding Network.

Preferably, the management carrying includes at least one of: establishing carrying, modification carrying, deleting bearing.

Preferably, in terminal by the gateway accessing network of the forwarding in second network, and the terminal is by institute During stating the tracing section updating that the second network is carried out to first network movement, controller, which receives, comes from the first network In gateway modification carry request；The controller turns according to the modification carrying request into second network The gateway for sending out layer modifies carrying.

Preferably, the gateway of forwarding of the controller according to the modification carrying request into second network is repaired Change the forwarding that carrying includes: the controller according to gateway from the modification carrying request to second network update with The session of gateway in the first network, and carry the tunnel information of the gateway in the first network.

Preferably, before controller receives the request of management carrying of the gateway in first network, also It include: that mobility management entity of the mobility management entity in second network into first network replys context response Message, wherein the controller address in second network and described turn are carried in the context response information The address of the gateway of hair layer, control plane address of the controller address as the access gateway of second network, described turn User face address of the address of the gateway of hair layer as the access gateway of second network.

Preferably, mobility management entity of the mobility management entity in the second network into first network is replied Hereafter before response message, further includes: in the attaching process of the terminal, the controller by the controller address and The address of the gateway of the forwarding carries the mobility pipe being sent in second network in creation conversational response message Manage entity.

Preferably, the gateway accessing network of the forwarding in second network is attached to by the first network in terminal During, controller receives the creation session request of the gateway in the first network；The controller according to The gateway of forwarding of the creation session request into second network creates carrying.

Preferably, the gateway of forwarding of the controller according to the creation session request into second network is created Build the gateway creation of the forwarding that carrying includes: the controller according to from the creation session request to second network with The session of gateway in the first network, and carry the tunnel information of the gateway in the first network.

Preferably, the gateway of the forwarding is AGW.

Preferably, the controller is the control layer module separated with forwarding.

According to another aspect of the present invention, a kind of load bearing management method is provided, comprising: controller is received from second The management session request of mobility management entity in network establishes forwarding tunnel request；The controller is according to the management Session request establishes forwarding tunnel and requests the gateway management session of forwarding into second network or establish forwarding tunnel Road, wherein the session of management or the forwarding tunnel of foundation are carried for the gateway management into first network, Second network is the communication network for supporting control layer to separate with forwarding.

Preferably, the management carrying includes at least one of: establishing carrying, modification carrying, deleting bearing.

Preferably, during terminal is switched over from the second network to first network, the controller, which receives, to be come It is requested from the creation indirect data forwarding tunnel of the mobility management entity in second network；The controller is according to Creation indirect data forwarding tunnel requests the gateway of the forwarding into second network to establish forwarding tunnel.

Preferably, the controller requests to turn into second network according to the creation indirect data forwarding tunnel The gateway of hair layer establishes forwarding tunnel, and to include: the controller request according to the creation indirect data forwarding tunnel to described the The gateway of forwarding in two networks establishes the session with the gateway in the first network, and carries the first network In gateway tunnel information.

Preferably, it is requested according to the creation indirect data forwarding tunnel into second network in the controller The gateway of forwarding is established after forwarding tunnel, further includes: wireless side network element of the controller into second network is built Vertical session, and carry the tunnel information of the gateway of forwarding in second network.

Preferably, it is requested according to the creation indirect data forwarding tunnel into second network in the controller The gateway of forwarding is established after forwarding tunnel, further includes: the controller passes through the mobile management in second network Wireless side network element of the entity into second network sends the tunnel information of the gateway of the forwarding in second network.

Preferably, the management session request of the mobility management entity in the second network is received in controller or build Before vertical forwarding tunnel request, further includes: shifting of the mobility management entity into the first network in second network Mobility management entity sends forward RELOCATION REQUEST message, wherein described the is carried in the forward RELOCATION REQUEST message The address of the gateway of the controller address and the forwarding in two networks, the controller address is as described second The control plane address of the access gateway of network, the access gateway of the address of the gateway of the forwarding as second network User face address.

Preferably, in the case where the terminal accesses network by the access gateway in the first network, the control Device processed requests the gateway of the forwarding into second network to establish forwarding tunnel according to the creation indirect data forwarding tunnel After road, further includes: delete session between the mobility management entity in the controller and second network；The control The gateway of forwarding of the device into second network deletes information relevant to the terminal.

Preferably, network is accessed by access gateway in the first network in terminal, and the terminal is by described the During the tracing section updating that one network is carried out to second Network Mobility, the controller is received from second net The creation session request of mobility management entity in network；The controller is according to the creation session request to second net The gateway of forwarding in network creates session.

Preferably, the gateway of forwarding of the controller according to the creation session request into second network is created Build the gateway creation of the forwarding that session includes: the controller according to from the creation session request to second network with The session of access gateway in the first network；Access gateway of the controller into the first network sends modification and holds Request message is carried, and carries the address of the gateway of forwarding in second network and the address of the controller, the control Control plane address of the device address processed as the access gateway of second network, described in the address of the gateway of the forwarding is used as The user face address of the access gateway of second network.

Preferably, during terminal is switched over from first network to the second network, the controller, which receives, to be come From the creation session request of the mobility management entity in second network；The controller is according to the creation session request The gateway of forwarding into second network creates session.

Preferably, the gateway of forwarding of the controller according to the creation session request into second network is created Build the gateway creation of the forwarding that session includes: the controller according to from the creation session request to second network with The session of access gateway in the first network.

Preferably, the gateway of the forwarding in the controller according to the creation session request into second network After creation session, further includes: wireless side network element of the controller into second network establishes session, and described in carrying The tunnel information of the gateway of forwarding in second network.

Preferably, the gateway of the forwarding in the controller according to the creation session request into second network After creation session, further includes: the controller passes through the mobility management entity in second network to second net Wireless side network element in network sends the tunnel information of the gateway of the forwarding in second network.

Preferably, the method also includes: between the mobility management entity in the controller and second network Discharge indirect data forwarding tunnel；The gateway of forwarding of the controller into second network deletes forwarding session.

Preferably, in terminal by the gateway accessing network of the forwarding in second network, and the terminal is by institute During stating the tracing section updating that first network is carried out to second Network Mobility, the controller is received from described The modification of mobility management entity in two networks carries request；The controller is according to modification carrying request to described the The gateway of forwarding in two networks modifies carrying.

Preferably, the gateway of forwarding of the controller according to the modification carrying request into second network is repaired Change the forwarding that carrying includes: the controller according to gateway from the modification carrying request to second network delete with The relevant session of gateway in the first network.

Preferably, the mistake of the access gateway access network in terminal by second network attachment into the first network Cheng Zhong, controller receive the creation session request of the mobility management entity in second network；The controller root Session request is established according to access gateway transmission of the creation session request into the first network, and carries second net The address of the address of the gateway of forwarding in network and the controller, the controller address connect as second network The control plane address of function Access Gateway, the user face of the address of the gateway of the forwarding as the access gateway of second network Location；The gateway of forwarding of the controller into second network and the access gateway in the first network establish meeting Words.

Preferably, connecing in the gateway from the controller to second network with the first network of the forwarding in Function Access Gateway is established after session, further includes: is deleted between the mobility management entity in the controller and second network Session；The gateway of forwarding of the controller into second network deletes information relevant to the terminal.

Preferably, the gateway of the forwarding is AGW.

Preferably, the controller is the control layer module separated with forwarding.

In accordance with a further aspect of the present invention, a kind of bearer management device is provided, is located in controller, comprising: first connects Module is received, the request of the management carrying for receiving the gateway in first network；First management module is used for root According to the gateway management carrying of forwarding of the request of the management carrying into second network, wherein second network For the communication network for supporting control layer to separate with forwarding.

Preferably, modification carrying, the gateway that terminal passes through the forwarding in second network are carried as in the management Network is accessed, and during the terminal is from second network to the mobile tracing section updating carried out of the first network, institute State the modification carrying request for the gateway that the first receiving module is also used to receive in the first network；First pipe Reason module is also used to the gateway modification carrying of the forwarding according to the modification carrying request into second network.

Preferably, it is carried as creation carrying in the management, terminal is attached to second network by the first network In forwarding gateway accessing network during, first receiving module is also used to receive in the first network Gateway creation session request；First management module is also used to according to the creation session request to described second The gateway of forwarding in network creates carrying.

In accordance with a further aspect of the present invention, a kind of bearer management system is additionally provided, is located in controller including above-mentioned Bearer management device, further includes: the mobility management entity in the second network, wherein the shifting in second network Mobility management entity includes: the first sending module, replys context response for the mobility management entity into first network Message, wherein the controller address in second network and described turn are carried in the context response information The address of the gateway of hair layer, control plane address of the controller address as the access gateway of second network, described turn User face address of the address of the gateway of hair layer as the access gateway of second network.

Preferably, in the attaching process of the terminal, the bearer management device further include: the second sending module is used Institute is sent in creation conversational response message in carrying the address of the controller address and the gateway of the forwarding State the mobility management entity in the second network.

It is according to the present invention also on the one hand to provide a kind of bearer management device, it is located in controller, comprising: second connects Module is received, is asked for receiving the management session request of the mobility management entity in the second network or establishing forwarding tunnel It asks；Second management module, for according to the management session request or establishing forwarding tunnel and requesting into second network Forwarding tunnel is established in the gateway management session of forwarding, wherein the session of management or the forwarding tunnel of foundation are used In the gateway management carrying into first network, second network is the communication network for supporting control layer to separate with forwarding Network.

Preferably, include at least one of in management carrying: establishing carrying, modification carrying, deleting bearing, terminal During being switched over from the second network to first network, second receiving module is also used to receive from described second The creation indirect data forwarding tunnel of mobility management entity in network is requested；Second management module is also used to according to institute Stating creation indirect data forwarding tunnel requests the gateway of the forwarding into second network to establish forwarding tunnel.

Preferably, described device further include: the first session establishment module, for the wireless side net into second network Member establishes session, and carries the tunnel information of the gateway of forwarding in second network.

Preferably, described device further include: third sending module, for passing through the mobile management in second network Wireless side network element of the entity into second network sends the tunnel information of the gateway of the forwarding in second network.

Preferably, in the case where the terminal accesses network by the access gateway in the first network, the dress It sets further include: the first removing module, for deleting session between the mobility management entity in second network；Second deletes Except module, the gateway for the forwarding into second network deletes information relevant to the terminal.

Preferably, include at least one of in management carrying: establishing carrying, modification carrying, deleting bearing, terminal Network is accessed by the access gateway in the first network, and the terminal is moved from the first network to second network During the dynamic tracing section updating carried out, second receiving module is also used to receive the movement in second network The creation session request of property management entity；Second management module is also used to according to the creation session request to described second The gateway of forwarding in network creates session.

Preferably, described device further include: the 4th sending module is sent for the access gateway into the first network Bearing request message is modified, and carries the address of the gateway of forwarding in second network and the address of the controller, Make the address of control plane address of the controller address as the access gateway of second network, the gateway of the forwarding For the user face address of the access gateway of second network.

Preferably, include at least one of in management carrying: establishing carrying, modification carrying, deleting bearing, terminal During switching over from first network to the second network, second receiving module is also used to receive from described second The creation session request of mobility management entity in network；Second management module is also used to be asked according to the creation session The gateway of the forwarding into second network is asked to create session.

Preferably, described device further include: the second session establishment module, for the wireless side net into second network Member establishes session, and carries the tunnel information of the gateway of forwarding in second network.

Preferably, described device further include: the 5th sending module, for passing through the mobile management in second network Wireless side network element of the entity into second network sends the tunnel information of the gateway of the forwarding in second network.

Preferably, described device further include: release module, for the mobility management entity in second network it Between discharge indirect data forwarding tunnel；Third removing module, the gateway for the forwarding into second network, which is deleted, to be turned Send out session.

Preferably, include at least one of in management carrying: establishing carrying, modification carrying, deleting bearing, terminal By the gateway accessing network of the forwarding in second network, and the terminal is from the first network to second net During the mobile tracing section updating carried out of network, second receiving module is also used to receive in second network The modification of mobility management entity carries request；Second management module is also used to be carried according to the modification and request to described The gateway of forwarding in second network modifies carrying.

Preferably, include at least one of in management carrying: establishing carrying, modification carrying, deleting bearing, terminal During access gateway access network of second network attachment into the first network, second receiving module It is also used to receive the creation session request of the mobility management entity in second network；Second management module is also For establishing session request according to access gateway transmission of the creation session request into the first network, and described in carrying The address of the address of the gateway of forwarding in second network and the controller, the controller address is as second net The control plane address of the access gateway of network, the use of the address of the gateway of the forwarding as the access gateway of second network Family face address, and the access gateway in the gateway of the forwarding into second network and the first network establishes session.

Preferably, described device further include: the 4th removing module, for real with the mobile management in second network Session is deleted between body；5th removing module, the gateway for the forwarding into second network are deleted and the terminal Relevant information.

It is according to the present invention also on the one hand to additionally provide a kind of bearer management system, it is located in controller including above-mentioned Bearer management device, further include the mobility management entity in the second network, wherein the movement in second network Property management entity include: the 6th sending module, for into the first network mobility management entity send forward reset Position request message, wherein the controller address in second network is carried in the forward RELOCATION REQUEST message And the address of the gateway of the forwarding, control plane of the controller address as the access gateway of second network Location, the user face address of the address of the gateway of the forwarding as the access gateway of second network.

Through the invention, the request of the management carrying of the gateway in first network is received using controller； The gateway management of forwarding of the controller according to the request of management carrying into the second network carries, wherein the second network is branch The mode for holding the communication network that control layer is separated with forwarding solves and traditional does not in the related technology support control and forwarding point From communication network and support control and forward separating communication network between how to carry out intercommunication the problem of, improve support control Make the compatibility and the scope of application of the communication network isolated with forwarding.

Detailed description of the invention

The drawings described herein are used to provide a further understanding of the present invention, constitutes part of this application, this hair Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:

Fig. 1 is the flow chart of load bearing management method according to an embodiment of the present invention；

Fig. 2 is the structural block diagram of bearer management device according to an embodiment of the present invention；

Fig. 3 is the structural block diagram of bearer management system according to an embodiment of the present invention；

Fig. 4 is the preferred structure block diagram of bearer management system according to an embodiment of the present invention；

Fig. 5 is the flow chart of another load bearing management method according to an embodiment of the present invention；

Fig. 6 is the structural block diagram of another bearer management device according to an embodiment of the present invention；

Fig. 7 is the preferred structure block diagram one of another bearer management device according to an embodiment of the present invention；

Fig. 8 is the preferred structure block diagram two of another bearer management device according to an embodiment of the present invention；

Fig. 9 is the preferred structure block diagram three of another bearer management device according to an embodiment of the present invention；

Figure 10 is the preferred structure block diagram four of another bearer management device according to an embodiment of the present invention；

Figure 11 is the preferred structure block diagram five of another bearer management device according to an embodiment of the present invention；

Figure 12 is the preferred structure block diagram six of another bearer management device according to an embodiment of the present invention；

Figure 13 is the structural block diagram of another bearer management system according to an embodiment of the present invention；

Figure 14 is the schematic diagram of the scene one of cordless communication network according to the preferred embodiment of the invention；

Figure 15 is the schematic diagram of the scene two of cordless communication network according to the preferred embodiment of the invention；

Figure 16 is the schematic diagram of the scene three of cordless communication network according to the preferred embodiment of the invention；

Figure 17 is the schematic diagram of the scene four of cordless communication network according to the preferred embodiment of the invention；

Figure 18 is according to embodiments of the present invention one on the basis of one system of scene, and user carries out tracing section updating process Flow chart；

Figure 19 is according to embodiments of the present invention one on the basis of one system of scene, and user switches over process flow Figure；

Figure 20 is according to embodiments of the present invention two on the basis of scene two system, and user carries out tracing section updating process Flow chart；

Figure 21 is according to embodiments of the present invention two on the basis of scene two system, and user switches over process flow Figure；

Figure 22 is according to embodiments of the present invention three on the basis of three system of scene, and user carries out attachment and tracking area more New process flow diagram flow chart；

Figure 23 is according to embodiments of the present invention three on the basis of three system of scene, and user switches over process flow Figure；

Figure 24 is according to embodiments of the present invention four on the basis of four system of scene, and user carries out attachment and tracking area more New process flow diagram flow chart；

Figure 25 is according to embodiments of the present invention four on the basis of four system of scene, and user switches over process flow Figure.

Specific embodiment

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings and in combination with Examples.It should be noted that not conflicting In the case of, the features in the embodiments and the embodiments of the present application can be combined with each other.

A kind of load bearing management method is provided in the present embodiment, and Fig. 1 is bearer management side according to an embodiment of the present invention The flow chart of method, as shown in Figure 1, this method comprises the following steps:

Step S102, controller receive the request of the management carrying of the gateway in first network；

The gateway management of step S104, forwarding of the controller according to from the request of management carrying to the second network carry, Wherein, the second network is the communication network for supporting control layer to separate with forwarding.

The present embodiment through the above steps, the control in the communication network (referred to as the second network) of control and forward separating Device processed receives the request of the management carrying of the gateway in traditional network, which divides to control layer and forwarding From communication network in forwarding gateway management carrying, realize traditional communication network for not supporting control and forward separating Support control and forward separating communication network between manage the interaction of carrying, solve and traditional in the related technology do not support The problem of how carrying out intercommunication between the communication network of control and forward separating and the communication network for supporting control and forward separating, Improve the compatibility and the scope of application for supporting the communication network of control and forward separating.

Preferably, the gateway of forwarding can be AGW in above-mentioned second network, and controller can be to be separated with forwarding Control layer module.

Preferably, management carrying may include at least one of: establish carrying, modification carrying, deleting bearing.

The mode for modifying carrying as a preferred implementation manner, can be with are as follows: passes through the forwarding in the second network in terminal The gateway accessing network of layer, and during terminal is from the second network to the mobile tracing section updating carried out of first network, controller It can receive the modification carrying request of the gateway in first network；Controller is requested according to modification carrying to second The gateway of forwarding in network modifies carrying.

Preferably, controller can update and first according to the gateway of forwarding of the modification carrying request into the second network The session of gateway in network, and carry the tunnel information of the gateway in first network.

Preferably, before controller receives the request of management carrying of the gateway in first network, the Mobility management entity in two networks can reply context response information to the mobility management entity in first network, In, the address of the gateway of the controller address and forwarding in the second network is carried in the context response information, is controlled Control plane address of the device address as the access gateway of the second network, access of the address of the gateway of forwarding as the second network The user face address of gateway.In this way, the gateway in first network can easily get the ground of controller The address of the gateway of location and forwarding, naturally it is also possible to by other means by controller address and the gateway of forwarding Address is notified to the gateway in first network.

Preferably, the mobility management entity in the second network can get above-mentioned control in the attaching process of terminal The address of the gateway of device address and forwarding, for example, controller takes the address of controller address and the gateway of forwarding Band is sent to the mobility management entity in the second network in creation conversational response message.

The mode for creating carrying as a preferred implementation manner, can be with are as follows: is attached to second by first network in terminal During the gateway accessing network of forwarding in network, controller can receive the gateway in first network Create session request；Controller is created according to the gateway of the forwarding of the creation session request into the second network and is carried.

Preferably, controller can be according to the gateway creation and first of forwarding of the creation session request into the second network The session of gateway in network, and carry the tunnel information of the gateway in first network.

Corresponding to above-mentioned load bearing management method, a kind of bearer management device is additionally provided in the present embodiment, is located at control In device, Fig. 2 is the structural block diagram of bearer management device according to an embodiment of the present invention, as shown in Fig. 2, the device includes: first Receiving module 22 and the first management module 24, are below described in detail modules.

First receiving module 22, the request of the management carrying for receiving the gateway in first network；The One management module 24 is connected with the first receiving module 22, for the forwarding according to the request of management carrying into the second network Gateway management carrying, wherein second network be the communication network that separates with forwarding of support control layer.

Control of the present embodiment by above-mentioned module, in the communication network (referred to as the second network) of control and forward separating Device processed receives the request of the management carrying of the gateway in traditional network, the controller by the first receiving module 22 Forwarding gateway management carrying in the communication network separated to control layer with forwarding by the first management module 24, realizes It manages and holds between traditional communication network for not supporting control and forward separating and the communication network for supporting control and forward separating The interaction of load solves the communication network for not supporting control and forward separating traditional in the related technology and supports control and forwarding The problem of how carrying out intercommunication between isolated communication network improves the compatibility for supporting the communication network of control and forward separating Property and the scope of application.

Preferably, it being carried as modification carrying in management, terminal passes through the gateway accessing network of the forwarding in the second network, And during terminal is from the second network to the mobile tracing section updating carried out of first network, the first receiving module 22 be can be also used for The modification for receiving the gateway in first network carries request；First management module 24 can be also used for being held according to modification The gateway for carrying forwarding of the request into the second network modifies carrying.

Preferably, it is carried as creation carrying in management, terminal is attached to the forwarding in the second network by first network During gateway accessing network, the first receiving module 22 can be also used for receiving the wound of the gateway in first network Build session request；First management module 24 can be also used for the gateway of the forwarding according to creation session request into the second network Creation carrying.

A kind of bearer management system is additionally provided in the present embodiment, and Fig. 3 is bearer management according to an embodiment of the present invention The structural block diagram of system, as shown in figure 3, the system includes the bearer management device 20 being located in controller as shown in Figure 2, also Including the mobility management entity 30 being located in the second network, wherein the mobility management entity in the second network includes: first Sending module 32 replys context response information for the mobility management entity into first network, wherein context response The address of the gateway of the controller address and forwarding in the second network is carried in message, controller address is as the second net The control plane address of the access gateway of network, the user face of the address of the gateway of forwarding as the access gateway of the second network Location.

Fig. 4 is the preferred structure block diagram of bearer management system according to an embodiment of the present invention, as shown in figure 4, in terminal In attaching process, bearer management device 20 can also include: the second sending module 26, send with the first receiving module 22 and first Module 32 is connected, and sends in creation conversational response message for carrying the address of controller address and the gateway of forwarding To the mobility management entity 30 in the second network.

In the present embodiment, another load bearing management method is additionally provided, Fig. 5 is another kind according to an embodiment of the present invention The flow chart of load bearing management method, as shown in figure 5, this method comprises the following steps:

Step S502, controller receive the management session request of the mobility management entity in the second network or build Vertical forwarding tunnel request；

Step S504, controller is according to the management session request or establishes forwarding tunnel and requests the forwarding into the second network Forwarding tunnel is established in the gateway management session of layer, wherein the session of management or the forwarding tunnel of foundation are used for first network In gateway management carrying, which be the communication network that separates with forwarding of support control layer.

Through the above steps, the controller in the communication network of control and forward separating is received to come from and is somebody's turn to do the present embodiment The management session request of mobility management entity in network establishes forwarding tunnel request, and the controller is to control layer and forwards Forwarding gateway management carrying in the communication network of layer separation, realizes traditional communication for not supporting control and forward separating The interaction of carrying is managed between network and the communication network for supporting control and forward separating, solve in the related technology it is traditional not Support how to carry out intercommunication between the communication network of control and forward separating and the communication network of support control and forward separating Problem improves the compatibility and the scope of application for supporting the communication network of control and forward separating.

Preferably, the gateway of forwarding can be AGW in above-mentioned second network, and controller can be to be separated with forwarding Control layer module.

Preferably, management carrying may include at least one of: establish carrying, modification carrying, deleting bearing.

As a preferred implementation manner, during terminal is switched over from the second network to first network, control Device can receive the creation indirect data forwarding tunnel request of the mobility management entity in the second network；Controller root The gateway of the forwarding into the second network is requested to establish forwarding tunnel according to creation indirect data forwarding tunnel.

Preferably, controller can request the net of the forwarding into the second network according to creation indirect data forwarding tunnel The session established with the gateway in first network is closed, and carries the tunnel information of the gateway in first network.

Preferably, controller can the wireless side network element directly into the second network establish session, and carry the second network In forwarding gateway tunnel information.Alternatively, controller can also by the mobility management entity in the second network to Wireless side network element in second network sends the tunnel information of the gateway of the forwarding in the second network.

Preferably, the mobility management entity in the second network can also be sent out to the mobility management entity in first network Send forward RELOCATION REQUEST message, wherein the control in the second network can be carried in the forward RELOCATION REQUEST message The address of the gateway of device address and forwarding, control plane address of the controller address as the access gateway of the second network turn User face address of the address of the gateway of hair layer as the access gateway of the second network.In this way, in first network Mobility management entity can easily get the address of the address of controller and the gateway of forwarding, naturally it is also possible to logical Other modes are crossed to notify the address of controller address and the gateway of forwarding to the mobility management entity in first network.

Preferably, in the case where terminal accesses network by the access gateway in first network, controller is according to creation After indirect data forwarding tunnel requests the gateway of the forwarding into the second network to establish forwarding tunnel, when forwarding tunnel is established It completes, controller can delete session between the mobility management entity in the second network, and turn into the second network The gateway for sending out layer deletes information relevant to above-mentioned terminal.

Network is accessed by the access gateway in first network in terminal as a preferred implementation manner, and terminal by During the tracing section updating that first network is carried out to the second Network Mobility, controller receives the movement in the second network The creation session request of property management entity；Controller can be according to the net of the forwarding of the creation session request into the second network Close creation session.

Preferably, controller can be according to the gateway creation and first of forwarding of the creation session request into the second network The session of access gateway in network；Access gateway of the controller into first network sends modification bearing request message, and takes The address of gateway with the forwarding in the second network and the address of controller, access of the controller address as the second network The control plane address of gateway, the user face address of the address of the gateway of the forwarding as the access gateway of the second network.

As a preferred implementation manner, during terminal is switched over from first network to the second network, control Device receives the creation session request of the mobility management entity in the second network, then controller can be according to the creation meeting The gateway of forwarding of the words request into the second network creates session.

Preferably, controller can create and the according to the gateway of the forwarding of the creation session request into the second network The session of access gateway in one network.

Preferably, controller according to the gateway creation session of forwarding of from the creation session request to the second network it Afterwards, session, and the tunnel of the gateway of the forwarding in the second network of carrying can also be established to the wireless side network element in the second network Road information；Alternatively, controller can also pass through wireless side net of the mobility management entity in the second network into the second network Member sends the tunnel information of the gateway of the forwarding in the second network.

Preferably, after conversation establishing, controller can discharge between the mobility management entity in the second network Indirect data forwarding tunnel, and the gateway of the forwarding into the second network deletes forwarding session, to discharge resource.

As a preferred implementation manner, in terminal by the gateway accessing network of the forwarding in the second network, and eventually During holding the tracing section updating carried out from first network to the second Network Mobility, controller is received in the second network The modification of mobility management entity carries request, then controller can carry forwarding of the request into the second network according to the modification The gateway of layer modifies carrying.

Preferably, the gateway that controller can carry forwarding of the request into the second network according to the modification is deleted and the The relevant session of gateway in one network.

Net is accessed by access gateway of second network attachment into first network in terminal as a preferred implementation manner, During network, controller can receive the creation session request of the mobility management entity in the second network, then controls Device can send according to access gateway of the creation session request into first network and establish session request, and carry the second network In forwarding gateway address and controller address, control plane of the controller address as the access gateway of the second network Address, the user face address of the address of the gateway of forwarding as the access gateway of the second network；Controller is into the second network Forwarding gateway and first network in access gateway establish session.

Preferably, the access gateway in the gateway from controller to the second network and first network of the forwarding in establishes meeting After words, controller can also delete session between the mobility management entity in the second network, and into the second network The gateway of forwarding deletes information relevant to terminal, to discharge resource.

Corresponding to above-mentioned another load bearing management method, another bearer management device is additionally provided in the present embodiment, In controller, Fig. 6 is the structural block diagram of another bearer management device according to an embodiment of the present invention, as shown in fig. 6, should Device includes: the second receiving module 62 and the second management module 64, and modules are described in detail below.

Second receiving module 62, for receiving the management session request of the mobility management entity in the second network Or establish forwarding tunnel request；Second management module 64 is connected with the second receiving module 62, for according to management session request or It establishes forwarding tunnel to request the gateway management session of forwarding into the second network or establish forwarding tunnel, wherein management The forwarding tunnel of session or foundation for into first network gateway management carrying, the second network be support control layer with The communication network of forwarding separation.

By above-mentioned module, the controller in the communication network of control and forward separating receives the present embodiment by second Module 62 receives the management session request of the mobility management entity in the network or establishes forwarding tunnel request, the control The forwarding gateway management in communication network that device processed is separated to control layer with forwarding by the second management module 64 carries, real Show and has been managed between the traditional communication network for not supporting control and forward separating and the communication network for supporting control and forward separating The interaction for managing carrying, solve the traditional in the related technology communication network for not supporting control and forward separating and support control with The problem of how carrying out intercommunication between isolated communication network is forwarded, the communication network for supporting control and forward separating is improved Compatibility and the scope of application.

Preferably, include at least one of in management carrying: establishing carrying, modification carrying, deleting bearing, terminal is by the During two networks are switched over to first network, the second receiving module 62 can be also used for receiving in the second network Mobility management entity creation indirect data forwarding tunnel request；Second management module 64 can be also used for according between creation Connecing data forwarding tunnel requests the gateway of the forwarding into the second network to establish forwarding tunnel.

Fig. 7 is the preferred structure block diagram one of another bearer management device according to an embodiment of the present invention, as shown in fig. 7, The device can also include: the first session establishment module 72, be connected with the second management module 64, for the nothing into the second network Line side network element establishes session, and the tunnel information of the gateway of the forwarding in the second network of carrying；Alternatively, third sending module 74, it is connected with the second management module 64, for wireless into the second network by the mobility management entity in the second network Side network element sends the tunnel information of the gateway of the forwarding in the second network.

Fig. 8 is the preferred structure block diagram two of another bearer management device according to an embodiment of the present invention, as shown in figure 8, In the case where terminal accesses network by the access gateway in first network, device further include: the first removing module 82, with the Two management modules 64 are connected, for deleting session between the mobility management entity in the second network；Second removing module 84, It is connected with the first removing module 82, the gateway for the forwarding into the second network deletes information relevant to terminal.

Preferably, include at least one of in management carrying: establishing carrying, modification carrying, deleting bearing, terminal passes through Access gateway in first network accesses network, and the tracing section updating mistake that terminal is carried out from first network to the second Network Mobility Cheng Zhong, the creation session that the second receiving module 62 can be also used for receiving the mobility management entity in the second network are asked It asks；The gateway that second management module 64 can be also used for the forwarding according to creation session request into the second network creates meeting Words.

Fig. 9 is the preferred structure block diagram three of another bearer management device according to an embodiment of the present invention, as shown in figure 9, The device can also include:

4th sending module 92 is connected with the second management module 64, repairs for the access gateway transmission into first network Change bearing request message, and the address of the address of the gateway of the forwarding in the second network of carrying and controller, controller address The control plane address of access gateway as the second network, the access gateway of the address of the gateway of forwarding as the second network User face address.

Preferably, include at least one of in management carrying: establishing carrying, modification carrying, deleting bearing, terminal is by the During one network is switched over to the second network, the second receiving module 62 can be also used for receiving in the second network Mobility management entity creation session request；Second management module 64 can be also used for according to creation session request to second The gateway of forwarding in network creates session.

Figure 10 is the preferred structure block diagram four of another bearer management device according to an embodiment of the present invention, such as Figure 10 institute Show, which can also include: the second session establishment module 102, be connected with the second management module 64, for into the second network Wireless side network element establish session, and carry the tunnel information of the gateway of forwarding in the second network；Alternatively, the 5th sends mould Block 104 is connected with the second management module 64, for the nothing by the mobility management entity in the second network into the second network Line side network element sends the tunnel information of the gateway of the forwarding in the second network.

Figure 11 is the preferred structure block diagram five of another bearer management device according to an embodiment of the present invention, such as Figure 11 institute Show, which can also include: release module 112, be connected with the second management module 64, for the mobility in the second network Indirect data forwarding tunnel is discharged between management entity；Third removing module 114 is connected with release module 112, is used for second The gateway of forwarding in network deletes forwarding session.

Preferably, include at least one of in management carrying: establishing carrying, modification carrying, deleting bearing, terminal passes through The gateway accessing network of forwarding in second network, and the tracking area that terminal is carried out from first network to the second Network Mobility is more During new, the modification that the second receiving module 62 can be also used for receiving the mobility management entity in the second network is held Carry request；Second management module 64 can be also used for the gateway modification of the forwarding according to modification carrying request into the second network Carrying.

Preferably, include at least one of in management carrying: establishing carrying, modification carrying, deleting bearing, terminal is by the During access gateway access network of two network attachments into first network, the second receiving module 62 can be also used for receiving The creation session request of mobility management entity in the second network；Second management module 64 can be also used for according to creation Session request is established in access gateway transmission of the session request into first network, and carries the gateway of the forwarding in the second network Address and controller address, control plane address of the controller address as the access gateway of the second network, the net of forwarding User face address of the address of pass as the access gateway of the second network, and the gateway of the forwarding into the second network and first Access gateway in network establishes session.

Figure 12 is the preferred structure block diagram six of another bearer management device according to an embodiment of the present invention, such as Figure 12 institute Show, which can also include: the 4th removing module 122, be connected with the second management module 64, for the shifting in the second network Session is deleted between mobility management entity；5th removing module 124 is connected with the 4th removing module 122, is used for the second network In the gateway of forwarding delete relevant to terminal information.

Another bearer management system is additionally provided in the present embodiment, and Figure 13 is another kind according to an embodiment of the present invention The structural block diagram of bearer management system, as shown in figure 13, the system include the carrying being located in controller as shown in Fig. 6,7,8 Managing device 60 (is illustrated by taking Fig. 6 as an example) in Figure 13, further includes the mobility management entity in the second network 130, wherein the mobility management entity 130 in the second network includes: the 6th sending module 132, for into first network Mobility management entity sends forward RELOCATION REQUEST message, wherein the second network is carried in forward RELOCATION REQUEST message In controller address and forwarding gateway address, control plane of the controller address as the access gateway of the second network Address, the user face address of the address of the gateway of forwarding as the access gateway of the second network.

It is illustrated below with reference to preferred embodiment, preferred embodiment below combines above-described embodiment and its preferred implementation Mode.

In preferred embodiment below, the is described in detail by taking four kinds of different scenes for carrying out intercommunication by two kinds of networks as an example The intercommunication mode of one network and the second network.Figure 14, Figure 15, Figure 16 and Figure 17 respectively illustrate different by two kinds of networks progress The scene of intercommunication.

Figure 14 is the schematic diagram of the scene one of cordless communication network according to the preferred embodiment of the invention, as shown in figure 14, It is non-roaming situation that user, which is initially accessed,；Home network supports OpenFlow agreement, and visited network is traditional network, by supporting Gateway accessing internet in the network of OpenFlow agreement；

Figure 15 is the schematic diagram of the scene two of cordless communication network according to the preferred embodiment of the invention, as shown in figure 15, User is initially accessed the case where local break-out；Home network supports OpenFlow agreement, and visited network is traditional network, by tradition Access gateway in network accesses internet；

Figure 16 is the schematic diagram of the scene three of cordless communication network according to the preferred embodiment of the invention.As shown in figure 16, User is initially accessed the case where being routed to ownership place；Home network supports OpenFlow agreement, and visited network is traditional network, The gateway accessing internet in network by supporting OpenFlow agreement；

Figure 17 is the schematic diagram of the scene four of cordless communication network according to the preferred embodiment of the invention, as shown in figure 17, User is initially accessed the case where being routed to ownership place；Home network is traditional network, and visited network supports OpenFlow agreement, Internet is accessed by the access gateway in traditional network.

Traditional network (being also known as first network herein) mentioned above is the network for not supporting openflow, i.e. net Access gateway in network is forwarding and control unification, and there is no realization forwardings to separate with control.Support the net of OpenFlow agreement Network is also known as the second network herein, realizes forwarding and separates with control, is separated into the gateway (example of controller and forwarding Such as, AGW)

Openflow network and traditional network intercommunication are realized in mobile communication system in order to realize, in following preferred implementation In example, provide a kind of intercommunication mode of forwarding and control element separation: terminal receives the pipe of gateway transmission in moving process After reason carrying, controller is managed to AGW and is carried；Alternatively, receiving the management session of mobility management entity or establishing forwarding tunnel After road request, controller is to AGW management session (flow table) or establishes forwarding tunnel, carries (non-flow table) to gateway management.

Preferably, above-mentioned management may include establishing or modifying or delete.

Following embodiment figure describes the Universal Mobile Communication System land radio access web (Evolved based on evolution Universal Terrestrial Radio Access Network, referred to as E-UTRAN) systematic difference scene.

Embodiment one

Figure 18 is according to embodiments of the present invention one on the basis of Figure 14 one system of scene, and user carries out tracing section updating Process flow diagram flow chart, as shown in figure 18, the present embodiment specific steps are described as follows:

Step S1802, terminal send tracing section updating to target mobility management entity through Target Wireless side network element and request Message.

Step S1804, target mobility management entity send context request message to former mobility management entity.

Step S1806, former mobility management entity reply context response information to target mobility management entity, carry The address AGW and controller address.Wherein the address AGW is as access gateway user face address, and controller address is as access gateway Control plane address.

Step S1810, optionally, terminal, mobility management entity, Authentication Authorization server execute verification process.

Step S1812, target mobility management entity send context acknowledgement message to former mobility management entity.

Step S1814, target mobility management entity send creation session request to destination service gateway.

Step S1816, destination service gateway send modification bearing request message to controller, and controller responds modification carrying Response message.

Step S1818, controller update flow table to AGW, carry destination service gateway tunnel information, take for more fresh target The tunnel information being engaged between gateway and AGW.

Step S1820, destination service gateway reply creation conversational response to target mobility management entity.

Step S1822 is executed between target mobility management entity and Authentication Authorization server and is updated position process.

Step S1824, execution position cancels process between Authentication Authorization server and former mobility management entity.

Step S1826, target mobility management entity send tracing section updating to terminal through Target Wireless side network element and receive Message.

Step S1828 discharges former connection between former mobility management entity, controller and AGW.

In above-mentioned process, one of following method is can be used with mobility management entity relevant information in release on controller: 1, It is mobile according to the canceling position of Authentication Authorization server or context request/context confirmation triggering timer expiry, original Property management entity to controller send releasing session.2, in S1818 step, controller can be discharged according to flow table message is updated It is connect with former mobility management entity.

Above-mentioned process can be in terminal attaching process, by controller by controller address and the address AGW in creation session Mobility management entity is notified in response message.

Figure 19 is according to embodiments of the present invention one on the basis of Figure 14 one system of scene, and user switches over process stream Cheng Tu, as shown in figure 19, the present embodiment specific steps are described as follows:

Step S1902, former wireless side network element judgement need to initiate S1 switching.

Step S1904, former wireless side network element send switching request to former mobility management entity.

Step S1906, former mobility management entity is in the forward re-positioning request sent to target mobility management entity Message carries the address AGW and controller address.Wherein the address AGW is as access gateway user face address, controller address conduct Access gateway control plane address.

Step S1908, target mobility management entity is to destination service gateway session establishment process.

Step S1910, target mobility management entity request target wireless side network element execute switching.Target Wireless side network element Switching request acknowledgement message is responded to target mobility management entity.

Step S1912 creates indirect data forwarding tunnel between target mobility management entity and destination service gateway.

Step S1914, target mobility management entity send forward relocation response message to former mobility management entity.

Step S1916, former mobility management entity send creation indirect data forwarding tunnel request to controller.

Step S1918, controller establish flow table to AGW transmission, carry destination service gateway tunnel information, turn to establish Send out tunnel.

Step S1920, optionally, controller establish flow table to former wireless side network element, AGW tunnel information are carried, to build Vertical forwarding tunnel.

Step S1922, controller send creation indirect data forwarding tunnel response to former mobility management entity.

Step S1924, former mobility management entity send switching command to terminal through former wireless side network element, wherein optional Ground carries AGW tunnel information in the message that former mobility management entity is sent to former wireless side network element, to establish forwarding tunnel Road.

Wherein, AGW tunnel information is carried in step S1924 and both execution of step S1920 message select one.

Step S1926, terminal initiate switch acknowledgment message to Target Wireless side network element.

Step S1928, Target Wireless side network element notice target mobility management entity switch over.

Step S1930, target mobility management entity send reorientation forward completion notice to former mobility management entity Message.Former mobility management entity replys reorientation forward to target mobility management entity and completes confirmation message.

Step S1932, target mobility management entity send modification carrying request to destination service gateway.

Step S1934, destination service gateway send modification carrying request to controller, and controller is replied modification carrying and rung It answers.

Step S1936, controller modify flow table to AGW, carry gateway tunnel information.

Step S1938, destination service gateway reply modification carrying response to target mobility management entity.

Step S1940 continues tracing section updating process.

Step S1942 forwards the timer expiry of end.

Step S1944 optionally executes terminal contexts release between former mobility management entity and former wireless side network element.

Step S1946 discharges indirect data forwarding tunnel between former mobility management entity and controller.

Step S1948, controller delete forwarding flow table to AGW.

Step S1950, optionally, controller delete forwarding flow table to former wireless side network element.

Wherein, step S1944 and step S1950 alternative execute.

Embodiment two

Figure 20 is according to embodiments of the present invention two on the basis of Figure 15 scene two system, and user carries out tracing section updating Process flow diagram flow chart, as shown in figure 20, the present embodiment specific steps are described as follows:

Step S2002, terminal are linked into mobile communications network by existing attaching process.

Step S2004, terminal send tracing section updating to target mobility management entity through Target Wireless side network element and request Message.

Step S2006, target mobility management entity send context request message to former mobility management entity.

Step S2008, former mobility management entity reply context response information to target mobility management entity.

Step S2010, target mobility management entity send context acknowledgement message to former mobility management entity.

Step S2012, target mobility management entity carry out controller selection.

Step S2014, target mobility management entity send creation session request to controller, carry the use of access gateway Family face address and control plane address.

Step S2016, controller establish flow table to AGW, carry access gateway user face address.

Step S2018, controller send modification bearing request message to access gateway, carry the address AGW and controller ground Location, wherein user face of the address AGW as gateway, control plane address of the controller address as gateway.Access net It closes and responds modification bearing response message.

Step S2020, controller reply creation conversational response to target mobility management entity.

Step S2022, target mobility management entity send tracing section updating to terminal through Target Wireless side network element and receive Message.

Step S2024 is executed between target mobility management entity and Authentication Authorization server and is updated position process.

Step S2026, execution position cancels process between Authentication Authorization server and former mobility management entity.

Step S2028, according to the canceling position of Authentication Authorization server or context request/context confirmation triggering Timer expiry.

Step S2030, the former connection of release between former mobility management entity, former gateway.

Figure 21 is according to embodiments of the present invention two on the basis of Figure 15 scene two system, and user switches over process stream Cheng Tu, as shown in figure 21, the present embodiment specific steps are described as follows:

Step S2102, former wireless side network element judgement need to initiate S1 switching.

Step S2104, former wireless side network element send switching request to former mobility management entity.

Step S2106, former mobility management entity is in the forward re-positioning request sent to target mobility management entity Message.

Step S2108, target mobility management entity carry out controller selection.

Step S2110, target mobility management entity create session request to controller, carry the user face of access gateway Address and control plane address；Controller replys creation conversational response.

Step S2112, optionally, controller establish flow table to Target Wireless side network element, carry AGW tunnel information, are used for Establish tunnel between Target Wireless side network element and AGW.

Step S2114, optionally, target mobility management entity request target wireless side network element execute switching, carry AGW Tunnel information.Target Wireless side network element responds switching request acknowledgement message to target mobility management entity.In this case, it walks Controller needs to carry AGW tunnel information to target mobility management entity in rapid S2110.

Wherein, above-mentioned steps S2112 and step S2114 alternative.

Step S2116 creates indirect data forwarding tunnel between target mobility management entity and controller.Controller is to mesh It marks and carries AGW forwarding tunnel information in the message that mobility management entity is sent, for establishing forwarding tunnel.

Step S2118, controller establish flow table to AGW, AGW forwarding tunnel information are carried, for establishing forwarding tunnel；It should The optional carrying access gateway user face address of message.

Step S2120, target mobility management entity send forward relocation response message to former mobility management entity, Carry AGW forwarding tunnel information.

Step S2122, former mobility management entity send creation indirect data forwarding tunnel request to gateway, carry AGW forwarding tunnel information.Gateway replys response message.

Step S2124, former mobility management entity send switching command to terminal through former wireless side network element.

Step S2126, terminal initiate switch acknowledgment message to Target Wireless side network element.

Step S2128, Target Wireless side network element notice target mobility management entity switch over.

Step S2130, target mobility management entity send forward to former mobility management entity and relocate completion notice Message.Former mobility management entity replys forward reorientation to target mobility management entity and completes confirmation message.

Step S2132, target mobility management entity send modification carrying request to controller.

Step S2134, controller send modification carrying request to access gateway, carry the address AGW and controller address, The middle address AGW is as user face address, and controller address is as control plane address.Access gateway replys modification carrying response.

Step S2136, optionally, controller establish flow table to AGW, carry access gateway user face address.Wherein, the step Suddenly the optional generation in access gateway user face address is carried with step S2118 message, the two selects one.

Step S2138, controller reply modification carrying response to target mobility management entity.

Step S2140 continues tracing section updating process.

Step S2142 forwards the timer expiry of end.

Step S2144 executes resource release between former mobility management entity, gateway and former wireless side network element.

Step S2146 forwards the timer expiry of end.

Step S2148 discharges indirect data forwarding tunnel between former or target mobility management entity and controller.

Step S2150, controller deletes forwarding flow table to AGW, for discharging forwarding tunnel.

Embodiment three

Figure 22 is according to embodiments of the present invention three on the basis of Figure 16 three system of scene, and user adheres to and tracks Area's renewal process flow chart, as shown in figure 22, the present embodiment specific steps are described as follows:

Following steps S2202 to step S2220 describes attaching process:

Step S2202, terminal send attach request to mobility management entity through wireless side network element.

Step S2204 is executed between mobility management entity and Authentication Authorization server and is updated position.

Step S2206 obtains controller address when mobility management entity executes access gateway selection.Home network at this time The dns server of network needs to provide controller address according to mobility management entity information.

Step S2208, mobility management entity create session request to gateway.

Step S2210, gateway send creation session request to controller；Controller replys creation conversational response and disappears Breath carries AGW information, and the information is as access gateway user plane information to gateway.

Step S2212, controller establish flow table to AGW, carry Service Gateway info.

Step S2214, gateway create conversational response to mobility management entity.

Step S2216, continues to execute attachment flow.

Step S2218, mobility management entity send modification carrying request to gateway.

Step S2220, gateway reply mobility management entity modification carrying response.

Following steps S2222 to step S2246 describes tracing section updating process:

Step S2222, terminal send tracing section updating to target mobility management entity through Target Wireless side network element and request Message.

Step S2224, target mobility management entity send context request message to former mobility management entity.

Step S2226, former mobility management entity reply context response information to target mobility management entity.

Step S2228, target mobility management entity send context acknowledgement message to former mobility management entity.

Step S2230, target mobility management entity carry out controller selection.

Step S2232, target mobility management entity send modification carrying request to controller.

Step S2234, controller modifies flow table to AGW, for deleting the relevant flow table of gateway.

Step S2236, controller send modification bearing response message to target mobility management entity.

Step S2238 is executed between target mobility management entity and Authentication Authorization server and is updated position process.

Step S2240, execution position cancels process between Authentication Authorization server and former mobility management entity.

Step S2242, target mobility management entity send tracing section updating received message to terminal.

Step S2244, according to the canceling position of Authentication Authorization server or context request/context confirmation triggering Timer expiry.

Step S2246 discharges former connection between former mobility management entity, gateway.

Figure 23 is according to embodiments of the present invention three on the basis of Figure 16 three system of scene, and user switches over process stream Cheng Tu, as shown in figure 23, the present embodiment specific steps are described as follows:

Step S2302, former wireless side network element judgement need to initiate S1 switching.

Step S2304, former wireless side network element send switching request to former mobility management entity.

Step S2306, former mobility management entity is in the forward re-positioning request sent to target mobility management entity Message.

Step S2308, target mobility management entity judge that gateway is relocated.

Step S2310, target mobility management entity modify carrying request to controller；Controller replys response message.

Step S2312, target mobility management entity request target wireless side network element execute switching.Target Wireless side network element Switching request acknowledgement message is responded to target mobility management entity.

Step S2314 creates indirect data forwarding tunnel between target mobility management entity and controller.Controller is to mesh It marks and carries AGW forwarding tunnel information in the message that mobility management entity is sent, for establishing forwarding tunnel.

Step S2316, controller establish flow table to AGW, Target Wireless side network element forwarding tunnel information are carried, for establishing Forwarding tunnel.

Step S2318, target mobility management entity send forward relocation response message to former mobility management entity, Carry AGW forwarding tunnel information.

Step S2320, former mobility management entity send creation indirect data forwarding tunnel request to gateway, carry AGW forwarding tunnel information.Gateway replys response message.

Step S2322, former mobility management entity send switching command to terminal through former wireless side network element.

Step S2324, terminal initiate switch acknowledgment message to Target Wireless side network element.

Step S2326, Target Wireless side network element notice target mobility management entity switch over.

Step S2328, continues to execute handoff procedure.

Example IV

Figure 24 is according to embodiments of the present invention four on the basis of Figure 17 four system of scene, and user adheres to and tracks Area's renewal process flow chart, as shown in figure 24, the present embodiment specific steps are described as follows:

Following steps S2402 to step S2416 describes attaching process:

Step S2402, terminal send attach request to mobility management entity through wireless side network element.

Step S2404 is executed between mobility management entity and Authentication Authorization server and is updated position.

Step S2406, mobility management entity judge ownership place for traditional network, then selection control and access gateway.

Step S2408, mobility management entity create session request to controller.

Step S2410, controller establish session request to access gateway transmission, carry the address AGW and controller address, The middle address AGW is as gateway user face address, and controller address is as gateway control plane address.Access gateway is replied Response message.

Step S2412, controller establish flow table to AGW, carry access gateway address information.

Step S2414, controller create conversational response to mobility management entity.

Step S2416 continues to execute the remaining attachment flow of Openflow, including flow table is established.

Following steps S2418 to step S2434 describes tracing section updating process:

Step S2418, terminal send tracing section updating to target mobility management entity through Target Wireless side network element and request Message.

Step S2420, target mobility management entity send context request message to former mobility management entity.

Step S2422, former mobility management entity reply context response information to target mobility management entity.

Step S2424, target mobility management entity send context acknowledgement message to former mobility management entity.

Step S2426, target mobility management entity judge that gateway is relocated.

Step S2428 continues to execute tracking area process.

Step S2430, according to the canceling position of Authentication Authorization server or context request/context confirmation triggering Timer expiry.

Step S2432 deletes former session between former mobility management entity, controller.

Step S2434, controller delete flow table to AGW, delete the information of all about terminal in AGW.

Figure 25 is according to embodiments of the present invention four on the basis of Figure 17 four system of scene, and user switches over process stream Cheng Tu, as shown in figure 25, the present embodiment specific steps are described as follows:

Step S2502, former wireless side network element judgement need to initiate S1 switching.

Step S2504, former wireless side network element send switching request to former mobility management entity.

Step S2506, former mobility management entity is in the forward re-positioning request sent to target mobility management entity Message.

Step S2508, target mobility management entity judge that gateway is relocated.

Step S2510, target mobility management entity send creation session request to gateway；Gateway, which is replied, to be rung Answer message.

Step S2512, target mobility management entity request target wireless side network element execute switching.Target Wireless side network element Switching request acknowledgement message is responded to target mobility management entity.

Step S2514 creates indirect data forwarding tunnel between target mobility management entity and controller.Controller is to mesh It marks and carries AGW forwarding tunnel information in the message that mobility management entity is sent, for establishing forwarding tunnel.

Step S2516, controller establish flow table to AGW, carry gateway forwarding tunnel information, for establishing forwarding tunnel Road.

Step S2518, target mobility management entity send forward relocation response message to former mobility management entity, Carry AGW forwarding tunnel information.

Step S2520, former mobility management entity send switching command to terminal through former wireless side network element.Its Central Plains is mobile Optional carrying AGW forwarding tunnel information in the message that property management entity is sent to former wireless side network element.

Step S2522, optionally, controller establish flow table to former wireless side network element, carry AGW forwarding tunnel information.

Wherein, AGW forwarding tunnel information is carried in step S2522 and step S2520 to optionally perform, the two selects one.

Step S2524, continues to execute switching flow.

Step S2526 forwards the timer expiry of end.

Step S2528, former mobility management entity and controller delete session.

Step S2530, controller delete flow table to AGW, delete the information of all about terminal in AGW.

In all of above embodiment, to simplify the description, only illustrate to support Openflow in case where EUTRAN Intercommunication mode between network and traditional network.In other cases (for example, UTRAN system, the feelings there are home base-station gateway Under condition), it is still desirable to carry out networking operation.In these cases, the way to manage to session or connection and above-described embodiment pole To be similar, it will not be impacted to the present invention is illustrated, therefore be not repeated to describe herein.

Wherein, above-mentioned wireless side network element can be base station, home base station, home base-station gateway, RNC (wireless network control Device, Radio Network Controller), data distribution functional entity.Mobility management entity can be MME (moving tube Manage unit, Mobility Management Entity), MSC (mobile switching centre, Mobile Switching Centre), SGSN (Serving GPRS Support Node, Serving GPRS Support Node), home base-station gateway etc..Gateway can be with It is S-GW or SGSN.Access gateway can be P-GW, AGW or GGSN.Authentication Authorization server can be HSS (home subscriber clothes Business device, Home Subscriber Server) or AAA (authentication, authorization, accounting, Authentication Authorization Accounting)。

Tunnel information may include address and/or mark.

In the network for supporting openflow, AGW is the gateway for supporting openflow network, contains and supports openflow Gateway and access gateway or support openflow access gateway function.For the former, gateway and access net Pass can be combined into an equipment, can also set up separately.If set up separately, controller can issue respectively to gateway and access gateway Flow table.

It should be noted that step shown in the flowchart of the accompanying drawings can be in such as a group of computer-executable instructions It is executed in computer system, although also, logical order is shown in flow charts, and it in some cases, can be with not The sequence being same as herein executes shown or described step.

Obviously, those skilled in the art should be understood that each module of the above invention or each step can be with general Computing device realize that they can be concentrated on a single computing device, or be distributed in multiple computing devices and formed Network on, optionally, they can be realized with the program code that computing device can perform, it is thus possible to which they are stored It is performed by computing device in the storage device, and in some cases, it can be to be different from shown in sequence execution herein Out or description the step of, perhaps they are fabricated to each integrated circuit modules or by them multiple modules or Step is fabricated to single integrated circuit module to realize.In this way, the present invention is not limited to any specific hardware and softwares to combine.

The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.

Claims (50)

1. a kind of load bearing management method characterized by comprising

Controller receives the request of the management carrying of the gateway in first network；

The gateway management of forwarding of the controller according to the request of the management carrying into the second network carries, wherein Second network is the communication network for supporting control layer to separate with forwarding；

Wherein, the management carrying includes at least one of: establishing carrying, modification carrying, deleting bearing；

Wherein, in terminal by the gateway accessing network of the forwarding in second network, and the terminal is by described second During the tracing section updating that network is carried out to first network movement, controller receives the clothes in the first network The modification of business gateway carries request；

The gateway of forwarding of the controller according to the modification carrying request into second network modifies carrying.

2. the method according to claim 1, wherein the controller is requested according to modification carrying to described The gateway modification of forwarding in second network, which carries, includes:

The controller updates and described the according to the gateway of the forwarding of the modification carrying request into second network The session of gateway in one network, and carry the tunnel information of the gateway in the first network.

3. method according to claim 1 or 2, which is characterized in that receive the clothes in first network in controller It is engaged in front of the request for managing carrying of gateway, further includes:

Mobility management entity of the mobility management entity into first network in second network replys context response Message, wherein the controller address in second network and described turn are carried in the context response information The address of the gateway of hair layer, control plane address of the controller address as the access gateway of second network, described turn User face address of the address of the gateway of hair layer as the access gateway of second network.

4. according to the method described in claim 3, it is characterized in that, mobility management entity in the second network is to the first net Mobility management entity in network is replied before context response information, further includes:

In the attaching process of the terminal, the controller is by the controller address and the ground of the gateway of the forwarding Location carries the mobility management entity being sent in second network in creation conversational response message.

5. the method according to claim 1, wherein

During terminal is attached to by the first network gateway accessing network of the forwarding in second network, control Device processed receives the creation session request of the gateway in the first network；

The gateway of forwarding of the controller according to the creation session request into second network creates carrying.

6. according to the method described in claim 5, it is characterized in that, the controller is according to the creation session request to described The gateway creation of forwarding in second network, which carries, includes:

The controller is according to the gateway creation of the forwarding of from the creation session request to second network and described the The session of gateway in one network, and carry the tunnel information of the gateway in the first network.

7. according to claim 1 to method described in any one of 2,4 to 6, which is characterized in that the gateway of the forwarding is to connect Function Access Gateway AGW.

8. according to the method described in claim 3, it is characterized in that, the gateway of the forwarding is access gateway AG W.

9. according to claim 1 to method described in any one of 2,4 to 6, which is characterized in that the controller is and forwarding Isolated control layer module.

10. according to the method described in claim 3, it is characterized in that, the controller is the control layer mould separated with forwarding Block.

11. a kind of load bearing management method characterized by comprising

Controller receives the management session request of the mobility management entity in the second network or establishes forwarding tunnel and asks It asks；

The controller is according to the management session request or establishes forwarding tunnel and requests the forwarding into second network Gateway management session or establish forwarding tunnel, wherein the forwarding tunnel of the session of management or foundation is used for the Gateway management carrying in one network, second network are the communication network for supporting control layer to separate with forwarding；

Wherein, the management carrying includes at least one of: establishing carrying, modification carrying, deleting bearing；

Wherein, during terminal is switched over from the second network to first network, the controller is received from described The creation indirect data forwarding tunnel of mobility management entity in second network is requested；

The controller requests the gateway of the forwarding into second network according to the creation indirect data forwarding tunnel Establish forwarding tunnel.

12. according to the method for claim 11, which is characterized in that the controller is forwarded according to the creation indirect data The gateway of forwarding of the tunneled requests into second network establishes forwarding tunnel and includes:

The controller requests the gateway of the forwarding into second network according to the creation indirect data forwarding tunnel The session with the gateway in the first network is established, and carries the tunnel letter of the gateway in the first network Breath.

13. method according to claim 11 or 12, which is characterized in that counted indirectly in the controller according to the creation The gateway of the forwarding into second network is requested to be established after forwarding tunnel according to forwarding tunnel, further includes:

Wireless side network element of the controller into second network establishes session, and carries the forwarding in second network The tunnel information of the gateway of layer.

14. method according to claim 11 or 12, which is characterized in that counted indirectly in the controller according to the creation The gateway of the forwarding into second network is requested to be established after forwarding tunnel according to forwarding tunnel, further includes:

Wireless side network element of the controller by the mobility management entity in second network into second network Send the tunnel information of the gateway of the forwarding in second network.

15. according to the method for claim 13, which is characterized in that receive the movement in the second network in controller Property management entity management session request or establish forwarding tunnel request before, further includes:

Mobility management entity of the mobility management entity into the first network in second network sends forward weight Locating request message, wherein the controller ground in second network is carried in the forward RELOCATION REQUEST message The address of the gateway of location and the forwarding, control plane of the controller address as the access gateway of second network Address, the user face address of the address of the gateway of the forwarding as the access gateway of second network.

16. according to the method for claim 14, which is characterized in that receive the movement in the second network in controller Property management entity management session request or establish forwarding tunnel request before, further includes:

Mobility management entity of the mobility management entity into the first network in second network sends forward weight Locating request message, wherein the controller ground in second network is carried in the forward RELOCATION REQUEST message The address of the gateway of location and the forwarding, control plane of the controller address as the access gateway of second network Address, the user face address of the address of the gateway of the forwarding as the access gateway of second network.

17. according to the method for claim 13, which is characterized in that pass through the access in the first network in the terminal In the case where gateway accessing network, the controller is requested according to the creation indirect data forwarding tunnel to second network In the gateway of forwarding establish after forwarding tunnel, further includes:

Session is deleted between mobility management entity in the controller and second network；

The gateway of forwarding of the controller into second network deletes information relevant to the terminal.

18. according to the method for claim 14, which is characterized in that pass through the access in the first network in the terminal In the case where gateway accessing network, the controller is requested according to the creation indirect data forwarding tunnel to second network In the gateway of forwarding establish after forwarding tunnel, further includes:

Session is deleted between mobility management entity in the controller and second network；

The gateway of forwarding of the controller into second network deletes information relevant to the terminal.

19. according to the method for claim 11, which is characterized in that

Network is accessed by access gateway in the first network in terminal, and the terminal is from the first network to described During the tracing section updating that second Network Mobility carries out, the controller receives the mobility in second network The creation session request of management entity；

The gateway of forwarding of the controller according to the creation session request into second network creates session.

20. according to the method for claim 19, which is characterized in that the controller is according to the creation session request to institute The gateway for stating the forwarding in the second network creates session and includes:

The controller is according to the gateway creation of the forwarding of from the creation session request to second network and described the The session of access gateway in one network；

Access gateway of the controller into the first network sends modification bearing request message, and carries second net The address of the address of the gateway of forwarding in network and the controller, the controller address connect as second network The control plane address of function Access Gateway, the user face of the address of the gateway of the forwarding as the access gateway of second network Location.

21. according to the method for claim 11, which is characterized in that

During terminal is switched over from first network to the second network, the controller is received from second net The creation session request of mobility management entity in network；

The gateway of forwarding of the controller according to the creation session request into second network creates session.

22. according to the method for claim 21, which is characterized in that the controller is according to the creation session request to institute The gateway for stating the forwarding in the second network creates session and includes:

The controller is according to the gateway creation of the forwarding of from the creation session request to second network and described the The session of access gateway in one network.

23. the method according to claim 21 or 22, which is characterized in that asked in the controller according to the creation session After asking the gateway of the forwarding into second network to create session, further includes:

Wireless side network element of the controller into second network establishes session, and carries the forwarding in second network The tunnel information of the gateway of layer.

24. the method according to claim 21 or 22, which is characterized in that asked in the controller according to the creation session After asking the gateway of the forwarding into second network to create session, further includes:

Wireless side network element of the controller by the mobility management entity in second network into second network Send the tunnel information of the gateway of the forwarding in second network.

25. according to the method for claim 23, which is characterized in that the method also includes:

Indirect data forwarding tunnel is discharged between mobility management entity in the controller and second network；

The gateway of forwarding of the controller into second network deletes forwarding session.

26. according to the method for claim 24, which is characterized in that the method also includes:

Indirect data forwarding tunnel is discharged between mobility management entity in the controller and second network；

The gateway of forwarding of the controller into second network deletes forwarding session.

27. according to the method for claim 11, which is characterized in that

In terminal by the gateway accessing network of the forwarding in second network, and the terminal from the first network to During the tracing section updating that second Network Mobility carries out, the controller receives the shifting in second network The modification of mobility management entity carries request；

The gateway of forwarding of the controller according to the modification carrying request into second network modifies carrying.

28. according to the method for claim 27, which is characterized in that the controller is requested according to modification carrying to institute The gateway modification for stating the forwarding in the second network, which carries, includes:

The controller is deleted and described the according to the gateway of the forwarding of the modification carrying request into second network The relevant session of gateway in one network.

29. according to the method for claim 11, which is characterized in that

During terminal accesses network by access gateway of second network attachment into the first network, controller Receive the creation session request of the mobility management entity in second network；

The controller establishes session request according to access gateway transmission of the creation session request into the first network, And carry the address of the gateway of forwarding in second network and the address of the controller, the controller address conduct The control plane address of the access gateway of second network, address the connecing as second network of the gateway of the forwarding The user face address of function Access Gateway；

The gateway of forwarding of the controller into second network and the access gateway in the first network establish meeting Words.

30. according to the method for claim 29, which is characterized in that in forwarding of the controller into second network The gateway of layer and the access gateway in the first network are established after session, further includes:

Session is deleted between mobility management entity in the controller and second network；

The gateway of forwarding of the controller into second network deletes information relevant to the terminal.

31. method described in any one of 5 to 20,25 to 30 according to claim 1, which is characterized in that the net of the forwarding Closing is access gateway AG W.

32. method described in any one of 5 to 20,25 to 30 according to claim 1, which is characterized in that the controller be with The control layer module of forwarding separation.

33. a kind of bearer management device is located in controller characterized by comprising

First receiving module, the request of the management carrying for receiving the gateway in first network；

First management module, the gateway management for the forwarding according to the request of the management carrying into the second network are held It carries, wherein second network is the communication network for supporting control layer to separate with forwarding；

Wherein, modification carrying, the gateway accessing net that terminal passes through the forwarding in second network are carried as in the management Network, and during the terminal is from second network to the mobile tracing section updating carried out of the first network,

First receiving module is also used to receive the modification carrying request of the gateway in the first network；

First management module is also used to the gateway of the forwarding according to the modification carrying request into second network Modification carrying.

34. device according to claim 33, which is characterized in that be carried as creation carrying in the management, terminal is by institute During the gateway accessing network for stating the forwarding that first network is attached in second network,

First receiving module is also used to receive the creation session request of the gateway in the first network；

First management module is also used to the gateway of the forwarding according to the creation session request into second network Creation carrying.

35. a kind of bearer management system, which is characterized in that including being located at control as described in any one of claim 33 to 34 Bearer management device in device, further includes: the mobility management entity in the second network, wherein in second network Mobility management entity include:

First sending module replys context response information for the mobility management entity into first network, wherein described The ground of the gateway of the controller address and the forwarding in second network is carried in context response information Location, control plane address of the controller address as the access gateway of second network, the ground of the gateway of the forwarding User face address of the location as the access gateway of second network.

36. system according to claim 35, which is characterized in that in the attaching process of terminal, the bearer management dress It sets further include:

Second sending module, for carrying the address of the controller address and the gateway of the forwarding in creation session The mobility management entity being sent in response message in second network.

37. a kind of bearer management device is located in controller characterized by comprising

Second receiving module, for receiving the management session request or foundation of the mobility management entity in the second network Forwarding tunnel request；

Second management module, for according to the management session request or establishing forwarding tunnel and requesting into second network Forwarding tunnel is established in the gateway management session of forwarding, wherein the session of management or the forwarding tunnel of foundation are used In the gateway management carrying into first network, second network is the communication network for supporting control layer to separate with forwarding Network；

Wherein, include at least one of in management carrying: establishing carrying, modification carrying, deleting bearing, terminal is by second During network is switched over to first network,

The creation that second receiving module is also used to receive the mobility management entity in second network is indirect Data forwarding tunnel request；

Second management module is also used to be requested according to the creation indirect data forwarding tunnel into second network The gateway of forwarding establishes forwarding tunnel.

38. the device according to claim 37, which is characterized in that described device further include:

First session establishment module establishes session for the wireless side network element into second network, and carries described second The tunnel information of the gateway of forwarding in network.

39. the device according to claim 37, which is characterized in that described device further include:

Third sending module, for wireless into second network by the mobility management entity in second network Side network element sends the tunnel information of the gateway of the forwarding in second network.

40. the device according to any one of claim 37 to 39, which is characterized in that pass through described first in the terminal In the case where access gateway access network in network, described device further include:

First removing module, for deleting session between the mobility management entity in second network；

Second removing module, the gateway for the forwarding into second network delete information relevant to the terminal.

41. the device according to claim 37, which is characterized in that include at least one of in management carrying: building Vertical carrying, modification carrying, deleting bearing, terminal access network, and the terminal by the access gateway in the first network During the tracing section updating carried out from the first network to second Network Mobility,

Second receiving module is also used to receive the creation session of the mobility management entity in second network Request；

Second management module is also used to the gateway of the forwarding according to the creation session request into second network Create session.

42. device according to claim 41, which is characterized in that described device further include:

4th sending module sends modification bearing request message for the access gateway into the first network, and carries institute The address of the gateway of the forwarding in the second network and the address of the controller are stated, the controller address is as described second The control plane address of the access gateway of network, the access gateway of the address of the gateway of the forwarding as second network User face address.

43. the device according to claim 37, which is characterized in that include at least one of in management carrying: building Vertical carrying, modification carrying, deleting bearing, during terminal is switched over from first network to the second network,

Second receiving module is also used to receive the creation session of the mobility management entity in second network Request；

Second management module is also used to the gateway of the forwarding according to the creation session request into second network Create session.

44. device according to claim 43, which is characterized in that described device further include:

Second session establishment module establishes session for the wireless side network element into second network, and carries described second The tunnel information of the gateway of forwarding in network.

45. device according to claim 43, which is characterized in that described device further include:

5th sending module, for wireless into second network by the mobility management entity in second network Side network element sends the tunnel information of the gateway of the forwarding in second network.

46. the device according to any one of claim 44 to 45, which is characterized in that described device further include:

Release module, for discharging indirect data forwarding tunnel between the mobility management entity in second network；

Third removing module, the gateway for the forwarding into second network delete forwarding session.

47. the device according to claim 37, which is characterized in that include at least one of in management carrying: building Vertical carrying, modification carrying, deleting bearing, terminal are and described by the gateway accessing network of the forwarding in second network During the tracing section updating that terminal is carried out from the first network to second Network Mobility,

Second receiving module is also used to receive the modification carrying of the mobility management entity in second network Request；

Second management module is also used to the gateway of the forwarding according to the modification carrying request into second network Modification carrying.

48. the device according to claim 37, which is characterized in that include at least one of in management carrying: building Vertical carrying, modification carrying, deleting bearing, terminal are accessed by access gateway of second network attachment into the first network During network,

The creation session that second receiving module is also used to receive the mobility management entity in second network is asked It asks；

Second management module is also used to be sent according to access gateway of the creation session request into the first network Session request is established, and carries the address of the gateway of forwarding in second network and the address of the controller, it is described Control plane address of the controller address as the access gateway of second network, the address of the gateway of the forwarding is as institute State the user face address of the access gateway of the second network, and the gateway of the forwarding into second network and first net Access gateway in network establishes session.

49. device according to claim 48, which is characterized in that described device further include:

4th removing module, for deleting session between the mobility management entity in second network；

5th removing module, the gateway for the forwarding into second network delete information relevant to the terminal.

50. a kind of bearer management system, which is characterized in that including being located at control as described in any one of claim 37 to 40 Bearer management device in device further includes the mobility management entity in the second network, wherein in second network Mobility management entity includes:

6th sending module sends forward RELOCATION REQUEST message for the mobility management entity into the first network, Wherein, the controller address and the forwarding in second network are carried in the forward RELOCATION REQUEST message The address of the gateway of layer, control plane address of the controller address as the access gateway of second network, the forwarding User face address of the address of the gateway of layer as the access gateway of second network.