CN102457444B - A kind of converging fixed network and the system and method for mobile network - Google Patents

A kind of converging fixed network and the system and method for mobile network Download PDF

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Publication number
CN102457444B
CN102457444B CN201010517456.7A CN201010517456A CN102457444B CN 102457444 B CN102457444 B CN 102457444B CN 201010517456 A CN201010517456 A CN 201010517456A CN 102457444 B CN102457444 B CN 102457444B
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layer
mag
bras
bng
signaling
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CN102457444A (en
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霍玉臻
毕以峰
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ZTE Corp
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ZTE Corp
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Priority to PCT/CN2011/080063 priority patent/WO2012051897A1/en
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/16Gateway arrangements

Abstract

The invention discloses the system and method for converging fixed network and mobile network, fixing network for bridge mode, it is provided for realizing the mobile anchor point gateway X MAG of trusted non-3 GPP access, it is connected to fixing between network and mobile network, Ya interface is set between UE and BNG/BRAS, Yb interface is set between BNG/BRAS and X MAG, makes UE can pass through the X MAG fixing network via bridge mode, the EPS with trusted non-3 gpp IP access way access to mobile network.For the fixing network of route pattern, based on existing framework, terminal and X MAG are supported use L2TP agreement to carry PPP signaling.By the present invention, UE can realize trusted non-3 GPP access in the way of simple possible, i.e. can pass through bridge mode or the fixing network insertion mobile network of route pattern, it is achieved fixing network and the fusion of mobile network.

Description

A kind of converging fixed network and the system and method for mobile network
Technical field
The present invention relates to fixing network and mobile network's integration technology, particularly relate to a kind of converging fixed network with The system and method for mobile network.
Background technology
Fig. 1 is that third generation partner program (3rd Generation Partnership Project, 3GPP) is drilled Grouping system (Evolved Packet System, the EPS) configuration diagram entered, as it is shown in figure 1, EPS By UMTS land radio access web (the Evolved Universal Terrestrial Radio of evolution Access Network, E-UTRAN), Mobility Management Entity (Mobility Management Entity, MME), gateway (Serving Gateway, S-GW), grouped data network gateway (Packet Data Network Gateway, P-GW/PDN GW), home subscriber server (Home Subscriber Server, HSS), 3GPP authentication and authorization charging (3GPP AAA) server, "Policy and Charging Rules Function (Policy And Charging Rules Function, PCRF) entity and other support nodes composition.Wherein, MME The management etc. being responsible for the mobile management context of mobile management, the process of Non-Access Stratum signaling, user controls Face related work;S-GW is the accessing gateway equipment being connected with E-UTRAN, at E-UTRAN and P-GW Between forward data, and be responsible for the pending datas such as paging are cached;P-GW is then dividing of 3GPP evolution Group system and the borde gateway of packet data network (Packet Data Network, PDN), be responsible for realization The access of PDN and forward the functions such as data between EPS and PDN.
In EPS, when UE is accessed by E-UTRAN, permissible between S-GW and P-GW Use general data transfer platform (General Data Transfer Platform, GTP), it would however also be possible to employ generation Reason mobile IP v 6 (PMIPv6) agreement;Further, EPS is realized and non-3 gpp by S2a/b/c interface The intercommunication of network, P-GW is as the anchor point between 3GPP and non-3 GPP network.Wherein, as it is shown in figure 1, Trusted non-3 gpp IP that is divided into non-3 GPP system accesses and trustless non-3 gpp IP accesses, credible Appoint non-3 gpp IP to access and can directly pass through S2a Yu P-GW interface;Trustless non-3 gpp IP accesses to be needed Packet data gateway (Evolved Packet Data Gateway, ePDG) and P-GW phase through evolution Even, the interface between ePDG and P-GW is S2b.S2a interface supports mobile IPv 4 (MIPv4) agreement With PMIPv6 agreement;S2b interface supports PMIPv6 agreement;S2c is the interface between UE and P-GW, Use double stack mobile IP v 6 (Dual Stack Mobile IPv6, DSMIPv6) agreement, it is provided that control and move Mobility management.
In EPS, strategy and charge execution function (Policy and charging enforcement Function, PCEF) it is present in P-GW, PCRF Yu P-GW exchanges information by Gx interface.When When interface between S-GW and P-GW is based on PMIPv6, S-GW is populated with bearing binding and event report Accuse function (Bearer Binding and Event Reporting Function, BBERF) entity, S-GW with Information is exchanged by Gxc interface between PCRF;When UE is connect by trusted non-3 gpp IP access system Fashionable, the trusted non-3 gpp IP access network Central Shanxi Plain is also populated with BBERF, and trusted non-3 gpp IP accesses Information is exchanged by Gxa interface between gateway and PCRF.
Fig. 2 is the structure composed schematic diagram of existing fixing network, as in figure 2 it is shown, UE passes through routing gateway (Routing Gateway, RG), access network (Access Network, AN), wideband network gateway/wide Band RAS (Broadband Network Gateway/Broadband Remote Access Server, BNG//BRAS) it is linked into external network PDN according to this.Here, described access network includes number Word subscribers' line DSL Access Multiplexer (Digital Subscriber Line Access Multiplexer, DSLAM), the network element such as ONT Optical Network Terminal (Optical Network Terminal, ONT);Described extranets Network PDN can be Internet or operator's enterprise network etc..Wherein, UE can be connect by BNG/BRAS Enter to Broadband Forum AAA (Broadband Forum AAA, BBF AAA) server, complete access and recognize Card and authentication;BNG/BRAS obtains carrying and charging control strategy from BPCF, completes to connect fixing network Enter management and the charging of resource.
In fixing network design, there are two kinds of deployment modes:
1) route pattern, i.e. RG exist as a router.In this scene, UE passes through WiFi AP (Wireless Fidelity Access Point WiFi access point) accesses RG, is accessed by AN BNG//BRAS, now (such as: UE accesses RG, employing is distributed by RG in the IP address of UE The certification on RG of the mode of user name password, certification success RG is that user distributes home address), and RG IP address by BRAS/BNG distribution (such as: when RG powers on, RG to BRAS/BNG initiate Certification, BRAS/BNG is that this RG distributes address), now RG needs to do the conversion of IP address.
2) bridge mode, i.e. RG exist as a bridging device.In this scene, UE passes through WiFi AP accesses, and accesses BNG//BRAS by AN and (has been likely to RG the most wherein, but now RG be a two-layer equipment, do not distribute IP address, and the connection between UE and BRAS for user It is the connection of two layers), now the IP address of UE is distributed by BRAS/BNG.
Can be managed collectively mobile network and fixing network for convenience, operator wishes to realize fixing network With the fusion of mobile network, so, terminal can be distinguished from different access points by unified identity can It is linked into the network merged mobile, fixing.
According to above-mentioned to mobile network with the description of fixing network, fixing network can be as mobile network EPS Non-3 gpp IP access module access, and have the access way that S2a, S2b and S2c etc. are different.
When using S2a access way, and when fixed network is route pattern, mobile anchor point gateway (X-MAG) is even It is connected between the BNG/BRAS and the P-GW of mobile network of fixing network, is used for realizing trusted non-3 gpp Access.It is connected by Y interface between UE and X-MAG, makes UE can pass through X-MAG via fixing net Network, with the EPS of trusted non-3 GPP access mode access to mobile network.X-MAG is used for processing UE and connects Enter the control signaling of mobile network, and route UE is through mobile network's outgoing or the data of reception.Fig. 3, figure 4 are respectively UE in prior art passes through two kinds of network rack of the fixing network insertion mobile network of route pattern Structure schematic diagram, in Fig. 3, X-MAG can be by the BBF aaa server in fixing network and 3GPP Aaa server or 3GPP AAA agency are connected;In Fig. 4, X-MAG is directly and 3GPP AAA or 3GPP AAA agency is connected.
But, the framework that Fig. 3, Fig. 4 are proposed is only applicable to the fixing network of route pattern, can not be real The fixing network of existing bridge mode and the mobile network fusion by S2a interface.
It addition, in order to realize the framework that Fig. 3, Fig. 4 are proposed, use UE directly to carry PPP on IP layer The simple UE of agreement accesses the flow process of EPS by X-MAG, but the method is incorrect, nothing Method realizes.Because first, PPP is the agreement of point-to-point, when there is BNG/BRAS in path, PPP Signaling cannot arrive X-MAG;Secondly, according to prior art, ppp protocol is cannot to be directly carried on IP On Ceng.Therefore, there is presently no and can realize the idiographic flow of the proposed framework of Fig. 3, Fig. 4.
Summary of the invention
In view of this, present invention is primarily targeted at a kind of converging fixed network and mobile network are provided be System and method, it is possible to make UE pass through the fixing network insertion mobile network of bridge mode or route pattern, from And realize the fusion of fixing network and mobile network.
For reaching above-mentioned purpose, the technical scheme is that and be achieved in that:
A kind of converging fixed network and the system of mobile network, including: fixing network, mobile network, movement Anchor gateway X-MAG and UE;Wherein,
Described X-MAG is connected to the wideband network gateway/Broadband Remote Access Server of fixing network Between the grouped data network gateway P-GW of BNG/BRAS and mobile network, it is used for processing UE and accesses shifting Dynamic network-based control signaling, and route UE is through mobile network's outgoing or the data of reception;
Arranging Ya interface between described UE and described BNG/BRAS, described BNG/BRAS is with described Yb interface is set between X-MAG.
The chain of command protocol stack of described X-MAG at least includes L1/L2 layer, IP layer, and L1/L2 layer is bottom Bearing bed;On IP layer, connect P-GW side, be carried on IP layer be UDP layer and PMIPv6 layer;Connecting the side of BNG/BRAS, being carried on IP layer is UDP layer, Yb control Face protocol layer;Accordingly, in the protocol stack on the Yb interface of described BNG/BRAS, arrange on IP layer UDP layer, Yb chain of command protocol layer;In the chain of command protocol stack of the Ya interface of described UE, On Ethernet/802.11 serial protocols layer, directly carrying Ya chain of command agreement;Accordingly, described In chain of command protocol stack on the Ya interface of BNG/BRAS, on Ethernet layer, directly carrying Ya control Face processed agreement;The chain of command protocol stack of described P-GW is connected the control of the side of P-GW with described X-MAG Face processed protocol stack is identical.
Described X-MAG processes the control signaling of UE access to mobile network:
When UE needs to send chain of command signaling, described UE sends chain of command signaling to BNG/BRAS;Institute State BNG/BRAS and receive after the chain of command signaling of UE, create for user or find correct tunnel, And be responsible for being encapsulated in tunnel chain of command signaling, it is transmitted to X-MAG;Described X-MAG receives from institute After stating the signaling of BNG/BRAS, chain of command signaling from UE in this signaling is taken out, and carries out corresponding Operation;
When X-MAG needs to send chain of command signaling, chain of command signaling is encapsulated in tunnel by X-MAG, and It is sent to BNG/BRAS by correct tunnel;Described BNG/BRAS receives from described X-MAG Signaling after, take out chain of command signaling therein, and be transmitted to UE;Described UE is according to the chain of command received Signaling operates accordingly.
The user face protocol stack of described X-MAG at least includes L1/L2 layer, IP layer, and L1/L2 layer is bottom Bearing bed;On IP layer, connect P-GW side, be carried on IP layer be UDP layer and PMIPv6 layer;Connecting the side of BNG/BRAS, being carried on IP layer is UDP layer, Yb user Face protocol layer;Accordingly, in the user face protocol stack on the Yb interface of described BNG/BRAS, IP layer it On UDP layer, Yb user plane protocol layer are set;In the user face protocol stack of the Ya interface of described UE, Ya user plane protocol layer is carried, on described Ya user plane protocol layer on Ethernet/802.11 serial protocols layer Carrying IP layer;Accordingly, in the user face protocol stack on the Ya interface of described BNG/BRAS, at Ethernet On layer, directly carrying Ya user plane protocol;The chain of command protocol stack of described P-GW is at described X-MAG The superiors of the user face protocol stack connecting the side of P-GW carry IP layer again.
Described X-MAG route UE through the data of mobile network's outgoing or reception is:
When UE needs to send user face data, upstream data wraps in the encapsulation 3GPP core net distribution of IP layer IP address, then after Ya interface user plane protocol layer encapsulates, it is transmitted to BNG/BRAS;By described BNG/BRAS is transferred to X-MAG after carrying out Yb interface user plane protocol encapsulation;Described X-MAG pair Described upstream data bag carries out decapsulation process, and solution removes the encapsulation of Yb interface user plane protocol and Ya Interface User Face protocol encapsulation, retains internal layer IP address, is encapsulated into afterwards in tunnel and issues P-GW;
X-MAG needs to send user face data, when i.e. receiving from the downlink data in the tunnel of P-GW, For described downlink data, X-MAG solution goes tunnel encapsulation, retains internal layer IP address, is then passed through Yb After interface user plane protocol encapsulation and Ya interface user plane protocol encapsulate, it is transferred to BNG/BRAS;Described After BNG/BRAS solution goes the encapsulation of Yb interface user plane protocol, packet is transmitted to UE;Described UE receives After described downlink data, carrying out decapsulation process, solution goes Ya interface user plane protocol to encapsulate, and issues afterwards To the IP layer of UE side, carry out subsequent treatment.
Described fixing network is the fixing network of bridge mode.
A kind of converging fixed network and the method for mobile network, including: X-MAG processes UE and accesses mobile network The control signaling of network, and route UE is through mobile network's outgoing or the data of reception, described X-MAG is even It is connected between the BNG/BRAS and the P-GW of mobile network of fixing network, UE and described BNG/BRAS Between Ya interface is set, Yb interface is set between described BNG/BRAS and described X-MAG.
The chain of command protocol stack of described X-MAG at least includes L1/L2 layer, IP layer, and L1/L2 layer is bottom Bearing bed;On IP layer, connect P-GW side, be carried on IP layer be UDP layer and PMIPv6 layer;Connecting the side of BNG/BRAS, being carried on IP layer is UDP layer, Yb control Face protocol layer;Accordingly, in the chain of command protocol stack on the Yb interface of described BNG/BRAS, IP layer it On UDP layer, Yb chain of command protocol layer are set;In the chain of command protocol stack of the Ya interface of described UE, On Ethernet/802.11 serial protocols layer, directly carrying Ya chain of command agreement;Accordingly, described In chain of command protocol stack on the Ya interface of BNG/BRAS, on Ethernet layer, directly carrying Ya control Face processed agreement;The chain of command protocol stack of described P-GW is connected the control of the side of P-GW with described X-MAG Face processed protocol stack is identical.
Described X-MAG processes the control signaling of UE access to mobile network:
When UE needs to send chain of command signaling, described UE sends chain of command signaling to BNG/BRAS;Institute State BNG/BRAS and receive after the chain of command signaling of UE, create for user or find correct tunnel, And be responsible for being encapsulated in tunnel chain of command signaling, it is transmitted to X-MAG;Described X-MAG receives from institute After stating the signaling of BNG/BRAS, chain of command signaling from UE in this signaling is taken out, and carries out corresponding Operation;
When X-MAG needs to send chain of command signaling, chain of command signaling is encapsulated in tunnel by X-MAG, and It is sent to BNG/BRAS by correct tunnel;Described BNG/BRAS receives from described X-MAG Signaling after, take out chain of command signaling therein, and be transmitted to UE;Described UE is according to the chain of command received Signaling operates accordingly.
The user face protocol stack of described X-MAG at least includes L1/L2 layer, IP layer, and L1/L2 layer is bottom Bearing bed;On IP layer, connect P-GW side, be carried on IP layer be UDP layer and PMIPv6 layer;Connecting the side of BNG/BRAS, being carried on IP layer is UDP layer, Yb user Face protocol layer;Accordingly, in the user face protocol stack on the Yb interface of described BNG/BRAS, IP layer it On UDP layer, Yb user plane protocol layer are set;In the user face protocol stack of the Ya interface of described UE, Ya user plane protocol layer is carried, on described Ya user plane protocol layer on Ethernet/802.11 serial protocols layer Carrying IP layer;Accordingly, in the user face protocol stack on the Ya interface of described BNG/BRAS, at Ethernet On layer, directly carrying Ya user plane protocol;The user face protocol stack of described P-GW is at described X-MAG The superiors of the user face protocol stack connecting the side of P-GW carry IP layer again.
Described X-MAG route UE through the data of mobile network's outgoing or reception is:
When UE needs to send user face data, upstream data wraps in the encapsulation 3GPP core net distribution of IP layer IP address, then after Ya interface user plane protocol layer encapsulates, it is transmitted to BNG/BRAS;By described BNG/BRAS is transferred to X-MAG after carrying out Yb interface user plane protocol encapsulation;Described X-MAG pair Described upstream data bag carries out decapsulation process, and solution removes the encapsulation of Yb interface user plane protocol and Ya Interface User Face protocol encapsulation, retains internal layer IP address, is encapsulated into afterwards in tunnel and issues P-GW;
X-MAG needs to send user face data, when i.e. receiving from the downlink data in the tunnel of P-GW, For described downlink data, X-MAG solution goes tunnel encapsulation, retains internal layer IP address, is then passed through Yb After interface user plane protocol encapsulation and Ya interface user plane protocol encapsulate, it is transferred to BNG/BRAS;Described After BNG/BRAS solution goes the encapsulation of Yb interface user plane protocol, packet is transmitted to UE;Described UE receives After described downlink data, carrying out decapsulation process, solution goes Ya interface user plane protocol to encapsulate, and issues afterwards To the IP layer of UE side, carry out subsequent treatment.
Described fixing network is the fixing network of bridge mode.
A kind of converging fixed network and the method for mobile network, including: X-MAG processes UE and accesses mobile network The control signaling of network, and route UE is through mobile network's outgoing or the data of reception, described X-MAG is even It is connected between the BNG/BRAS and the P-GW of mobile network of fixing network, described UE and described X-MAG Upper support uses L2TP agreement to carry PPP signaling.
The chain of command protocol stack of described X-MAG at least includes L1/L2 layer, IP layer, and L1/L2 layer is bottom Bearing bed;On IP layer, connect P-GW side, be carried on IP layer be UDP layer and PMIPv6 layer;Connecting the side of UE, being carried on IP layer is UDP layer, L2TP layer, PPP Layer;Corresponding, in the protocol stack of UE, UDP layer, L2TP layer and PPP layer are set on IP layer, Control the mutual of signaling realizing PPP between UE and X-MAG.
Described X-MAG processes the control signaling of UE access to mobile network:
When UE needs to send chain of command signaling, described UE creates or finds correct L2TP Tunnel, and will PPP signaling is encapsulated in L2TP signaling and is sent to X-MAG;Described X-MAG receives from described UE L2TP signaling after, the PPP signaling in this signaling is taken out, and operates accordingly according to its content;
When X-MAG needs to send chain of command signaling, PPP signaling is encapsulated in L2TP letter by described X-MAG In order, and it is sent to UE by correct L2TP Tunnel;The L2TP that UE receives from X-MAG believes After order, need to be taken out PPP signaling, and operate accordingly according to the PPP signaling received.
The user face protocol stack of described X-MAG at least includes L1/L2 layer, IP layer, and L1/L2 layer is bottom Bearing bed;On IP layer, connect P-GW side, be carried on IP layer be UDP layer and PMIPv6 layer;Connecting the side of UE, being carried on IP layer is UDP layer, L2TP layer and PPP Association's layer;In the user face protocol stack of UE, UDP layer, L2TP layer and ppp protocol are set on IP layer Layer, carries IP layer on PPP layer;The user face protocol stack of described P-GW is for connect at described X-MAG The superiors of the user face protocol stack of the side of P-GW carry IP layer again.
Described X-MAG route UE through the data of mobile network's outgoing or reception is:
When UE needs to send user face data, upstream data wraps in the encapsulation 3GPP core net distribution of IP layer Behind IP address, after PPP layer and L2TP layer two-layer encapsulate, it is sent to X-MAG;X-MAG is to institute Stating upstream data bag and carry out decapsulation process, solution goes L2TP and PPP to encapsulate, and retains internal layer IP address, it Post package enters issues P-GW in tunnel;
X-MAG needs to send user face data, when i.e. receiving from the downlink data in the tunnel of P-GW, For described downlink data, X-MAG solution goes tunnel encapsulation, retains internal layer IP address, then entered PPP After encapsulating with L2TP two-layer, it is sent to UE;After UE receives described downlink data, carry out decapsulation process, Solution goes L2TP, PPP to encapsulate, and is handed down to the IP layer of UE side afterwards, carries out subsequent treatment.
Described fixing network is the fixing network of route pattern.
Converging fixed network of the present invention and the system and method for mobile network, for the fixing network of bridge mode, Be provided for realizing the mobile anchor point gateway X-MAG of trusted non-3 GPP access, be connected to fixing network and Between mobile network, Ya interface is set between UE and BNG/BRAS, at BNG/BRAS and X-MAG Between Yb interface is set, make UE can by X-MAG via the fixing network of bridge mode, with trusted The EPS of non-3 gpp IP access way access to mobile network.For the fixing network of route pattern, based on existing There is framework (as shown in Figure 3, Figure 4), terminal and X-MAG are supported use L2TP agreement to carry PPP signaling.By the present invention, UE can realize trusted non-3 GPP access in the way of simple possible, i.e. Bridge mode or the fixing network insertion mobile network of route pattern can be passed through, it is achieved fixing network and movement The fusion of network.
Accompanying drawing explanation
Fig. 1 is EPS configuration diagram;
Fig. 2 is the structure composed schematic diagram of existing fixing network;
Fig. 3 is a kind of network of the fixing network insertion mobile network that UE passes through route pattern in prior art Configuration diagram;
Fig. 4 is the another kind of net of the fixing network insertion mobile network that UE passes through route pattern in prior art Network configuration diagram;
Fig. 5 is that UE of the present invention is by under the network architecture of the fixing network insertion mobile network of bridge mode The chain of command protocol stack schematic diagram of X-MAG and related network elements thereof;
Fig. 6 is that UE of the present invention is by under the network architecture of the fixing network insertion mobile network of bridge mode The user face protocol stack schematic diagram of X-MAG and related network elements thereof;
Fig. 7 is that UE of the present invention is by under the network architecture of the fixing network insertion mobile network of route pattern Chain of command protocol stack one schematic diagram of X-MAG and related network elements thereof;
Fig. 8 is the net of the fixing network insertion mobile network that UE passes through bridge mode in the embodiment of the present invention 1 Network configuration diagram;
Fig. 9 is the net of the fixing network insertion mobile network that UE passes through bridge mode in the embodiment of the present invention 2 Network configuration diagram;
Figure 10 is the net of the fixing network insertion mobile network that UE passes through bridge mode in the embodiment of the present invention 3 Network configuration diagram;
Figure 11 is the net of the fixing network insertion mobile network that UE passes through bridge mode in the embodiment of the present invention 4 Network configuration diagram;
Figure 12 is the net of the fixing network insertion mobile network that UE passes through bridge mode in the embodiment of the present invention 5 Network configuration diagram;
Figure 13 is the net of the fixing network insertion mobile network that UE passes through bridge mode in the embodiment of the present invention 6 Network configuration diagram;
Figure 14 is the net of the fixing network insertion mobile network that UE passes through bridge mode in the embodiment of the present invention 7 What under network framework, UE accessed/adheres to realizes schematic flow sheet;
Figure 15 is the net of the fixing network insertion mobile network that UE passes through bridge mode in the embodiment of the present invention 8 Under network framework, UE off-line/attachment removal realizes schematic flow sheet;
Figure 16 is the net of the fixing network insertion mobile network that UE passes through bridge mode in the embodiment of the present invention 9 Under network framework, UE realizes schematic flow sheet from 3GPP IP access network to what fixing network switched;
Figure 17 is the UE fixing network insertion mobile network by bridge mode in the embodiment of the present invention 10 That sets up additional PDN connection establishment under the network architecture realizes schematic flow sheet;
Figure 18 is the UE fixing network insertion mobile network by route pattern in the embodiment of the present invention 11 What under the network architecture, UE accessed/adheres to realizes schematic flow sheet;
Figure 19 is the UE fixing network insertion mobile network by route pattern in the embodiment of the present invention 12 Under the network architecture, UE off-line/attachment removal realizes schematic flow sheet;
Figure 20 is the UE fixing network insertion mobile network by route pattern in the embodiment of the present invention 13 Under the network architecture, UE realizes schematic flow sheet from 3GPP IP access network to what fixing network switched;
Figure 21 is the UE fixing network insertion mobile network by route pattern in the embodiment of the present invention 14 That sets up additional PDN connection establishment under the network architecture realizes schematic flow sheet;
Figure 22 is that UE of the present invention is by under the network architecture of the fixing network insertion mobile network of route pattern Chain of command protocol stack two schematic diagram of X-MAG and related network elements thereof;
Figure 23 a is that UE of the present invention is by under the network architecture of the fixing network insertion mobile network of route pattern Chain of command protocol stack three schematic diagram of X-MAG and related network elements thereof;
Figure 23 b is that UE of the present invention is by under the network architecture of the fixing network insertion mobile network of route pattern User face protocol stack three schematic diagram of X-MAG and related network elements thereof;
Figure 24 is that UE of the present invention is by under the network architecture of the fixing network insertion mobile network of route pattern Chain of command protocol stack four schematic diagram of X-MAG and related network elements thereof.
Detailed description of the invention
The basic thought of the present invention is: for the fixing network of bridge mode, be provided for realizing trusted non- The mobile anchor point gateway X-MAG that 3GPP accesses, is connected to fixing between network and mobile network, at UE And Ya interface is set between BNG/BRAS, Yb interface is set between BNG/BRAS and X-MAG, Make UE can pass through X-MAG via the fixing network of bridge mode, with trusted non-3 gpp IP access side The EPS of formula access to mobile network.For the fixing network of route pattern, based on existing framework (as Fig. 3, Shown in Fig. 4), terminal and X-MAG are supported use L2TP agreement to carry PPP signaling.
Each interface described for convenience, herein using two end points network elements of each interface as each interface Title, such as: the interface between BNG/BRAS and BBF AAA can be referred to as (BNG/BRAS-BBF AAA) interface;Interface between BNG/BRAS and BPCF can be referred to as (BNG/BRAS-BPCF) and connect Mouthful, the rest may be inferred.
For the fixing network of bridge mode, the present invention proposes a kind of converging fixed network and mobile network's System, this converging fixed network includes with the system of mobile network: fixing network, mobile network, mobile anchor Point gateway (X-MAG) and UE, described X-MAG are connected to fixing between network and mobile network, use In realizing trusted non-3 GPP access, Ya interface is set between the BNG/BRAS of UE and fixing network, Yb interface is set between described BNG/BRAS and X-MAG, makes UE can pass through X-MAG via bridge Connect the fixing network of pattern, with the EPS of trusted non-3 gpp IP access way access to mobile network, and, Described X-MAG, for processing the control signaling of UE access to mobile network, and route UE is through mobile network Network outgoing or the data of reception.
Concrete, described X-MAG is connected to the BNG/BRAS and the P-GW of mobile network of fixing network Between, it is provided with Ya and Yb interface;And described UE has a function supporting Ya interface, UE with Between BNG/BRAS, by Ya interface intercommunication, connect by Yb between BNG/BRAS and X-MAG Mouth intercommunication;Described X-MAG is for processing the control signaling of UE access to mobile network, and route UE Through mobile network's outgoing or the data of reception.Based on set X-MAG network element, the network system of the present invention System supports that user's access/attachment, many PDN connection establishment, user's off-line/attachment removal and user are at 3GPP Handover operation between access network and fixing network.
For realizing the signaling between X-MAG and UE and the transmission of data, need to arrange each network element in system Protocol stack.On Ya, Yb interface, being respectively provided with chain of command agreement and user plane protocol, this agreement can To use multiple existing protocol, the present invention illustrates the setting of protocol stack as a example by using ppp protocol.Due to PPP is point-to-point protocol, and when there is BNG/BRAS between UE and X-MAG, PPP signaling can not Direct interaction between UE and X-MAG, for solving this problem, we use L2TP to carry PPP Signaling.In the present system, the protocol stack of UE, RG, BNG/BRAS, X-MAG and P-GW sets respectively Putting as shown in Figure 5 and Figure 6, wherein, Fig. 5 is the UE of the present invention fixing network insertion by bridge mode The chain of command protocol stack schematic diagram of X-MAG and related network elements thereof under the network architecture of mobile network, Fig. 6 is UE of the present invention by X-MAG under the network architecture of the fixing network insertion mobile network of bridge mode and The user face protocol stack schematic diagram of related network elements.Concrete: as it is shown in figure 5, the chain of command association of X-MAG View stack at least includes L1/L2 (Layer 1/Layer 2) layer, IP layer, and L1/L2 layer is bottom bearing bed;? On IP layer, connecting the side of P-GW, being carried on IP layer is UDP layer and PMIPv6 layer, It is to say, it is mutual by PMIPv6 on IP layer between X-MAG and P-GW;Connect The side of BNG/BRAS, being carried on IP layer is that UDP layer, Yb chain of command protocol layer are (such as L2TP Layer, PPP layer).Corresponding, in the protocol stack on the Yb interface of BNG/BRAS side, IP layer it On UDP layer, Yb chain of command protocol layer (such as L2TP layer and PPP layer) are set, with realize forward UE with Control signaling (such as PPP) between X-MAG.In the chain of command protocol stack of the Ya interface of UE, On Ethernet/802.11 serial protocols layer, directly carrying Ya chain of command agreement (such as ppp protocol).Relatively Answer, in the chain of command protocol stack on the Ya interface of BNG/BRAS side, on Ethernet layer, directly Connect carrying Ya chain of command agreement (such as ppp protocol);The chain of command protocol stack of described P-GW and described X-MAG The chain of command protocol stack of the side connecting P-GW is identical.
Transmitting for chain of command, UE sends chain of command signaling to BNG/BRAS;BNG/BRAS receives After the chain of command signaling of UE, can be that user creates or find correct tunnel, and be responsible for believing PPP Order is encapsulated in tunnel, is transmitted to X-MAG;X-MAG receives after the signaling of BNG/BRAS, Need to take out the chain of command signaling from UE in this signaling, and carry out operating (such as mirror according to its content Weigh, set up PMIPv6 binding etc.).When X-MAG need send chain of command signaling time (as authorizing procedure, When the flow processs such as PMIPv6 binding flow process need to carry out Signalling exchange with UE), X-MAG can be by chain of command Signaling is encapsulated in tunnel, and is sent to BNG/BRAS by correct tunnel;BNG/BRAS receives After the signaling of described X-MAG, take out chain of command signaling therein, and be transmitted to UE;UE is according to receipts To chain of command signaling operate accordingly.
Concrete, when using ppp protocol, chain of command is transmitted, UE send PPP signaling to BNG/BRAS;BNG/BRAS receives after the PPP chain of command signaling of UE, needs to create for user Or find correct L2TP Tunnel, and be responsible for being encapsulated in L2TP signaling PPP signaling, it is transmitted to X-MAG;X-MAG receives after the L2TP signaling of BNG/BRAS, needs in this signaling PPP signaling is taken out, and carries out operating (such as authentication, setting up PMIPv6 binding etc.) according to its content.When (need in the flow processs such as authorizing procedure, PMIPv6 binding flow process when X-MAG needs to send chain of command signaling When carrying out Signalling exchange with UE), PPP signaling is encapsulated in L2TP signaling by X-MAG, and by just True L2TP Tunnel is sent to BNG/BRAS;After BNG/BRAS receives, take out PPP signaling therein, And it is transmitted to UE;UE operates accordingly according to the PPP signaling received.
Fig. 6 show the user face protocol stack of X-MAG and related network elements thereof, as shown in Figure 6, each network element User face protocol stack essentially identical with chain of command protocol stack, hold again only for UE and the P-GW the superiors Carry one layer of IP layer.Concrete, the user face protocol stack of X-MAG at least includes L1/L2 layer, IP layer, L1/L2 layer is bottom bearing bed;On IP layer, connect the side of P-GW, be carried on IP layer It is UDP layer and PMIPv6 layer;Connecting the side of BNG/BRAS, being carried on IP layer is UDP Layer, Yb user plane protocol layer;Accordingly, in the protocol stack on the Yb interface of BNG/BRAS, IP layer it On UDP layer, Yb chain of command protocol layer are set;In the user face protocol stack of the Ya interface of described UE, Ya user plane protocol layer is carried, on described Ya user plane protocol layer on Ethernet/802.11 serial protocols layer Carrying IP layer;Accordingly, in the user face protocol stack on the Ya interface of BNG/BRAS, at Ethernet On layer, directly carrying Ya user plane protocol;The chain of command protocol stack of P-GW is for connect at described X-MAG The superiors of the user face protocol stack of the side of P-GW carry IP layer again.
Transmitting for user face, in UE side, upstream data wraps in the encapsulation 3GPP core net distribution of IP layer Behind IP address, after Ya interface user plane protocol layer encapsulates, it is transmitted to BNG/BRAS;Again by BNG/BRAS is transferred to X-MAG after carrying out Yb interface user plane protocol encapsulation;X-MAG to from The upstream data bag of UE, carries out decapsulation process, and solution removes the encapsulation of Yb interface user plane protocol and Ya interface User plane protocol encapsulates, and retains internal layer IP address, is encapsulated into afterwards in tunnel and issues P-GW.For from The downlink data in the tunnel of P-GW, X-MAG solution is gone tunnel encapsulation, is retained internal layer IP address, then warp After crossing the encapsulation of Yb interface user plane protocol and the encapsulation of Ya interface user plane protocol, it is transferred to BNG/BRAS; After BNG/BRAS solution goes the encapsulation of Yb interface user plane protocol, packet is transmitted to UE;UE receives After the downlink data of X-MAG, carrying out decapsulation process, solution goes Ya interface user plane protocol to encapsulate, It is handed down to the IP layer of UE side afterwards, carries out subsequent treatment.
Concrete, when using ppp protocol, user face is transmitted, in UE side, upstream data wraps in Behind the IP address of IP layer encapsulation 3GPP core net distribution, after PPP layer encapsulates, it is transmitted to BNG/BRAS;It is transferred to X-MAG after being carried out L2TP encapsulation by BNG/BRAS again;X-MAG pair From the upstream data bag of UE, carrying out decapsulation process, solution goes L2TP and PPP to encapsulate, and retains internal layer IP address, is encapsulated into afterwards in tunnel and issues P-GW.For the downlink data in the tunnel from P-GW, X-MAG solution goes tunnel encapsulation, retains internal layer IP address, after then entering the encapsulation of PPP and L2TP two-layer, It is transferred to BNG/BRAS;After BNG/BRAS solution goes L2TP encapsulation, packet is transmitted to UE;UE After the downlink data from X-MAG received, carrying out decapsulation process, solution goes PPP to encapsulate, afterwards under Issue the IP layer of UE side, carry out subsequent treatment.
Based on UE, BNG/BRAS and X-MAG chain of command and the setting of user face protocol stack, X-MAG Support to be connected with UE, P-GW, BNG/BRAS, and support the MAG function in PMIPv6 agreement, Realize packet routing and transfer functions;
X-MAG also supports L2TP agreement and ppp protocol, it is achieved the certification of user, packet route and Forward;
X-MAG can also receive triggering signaling/access request signaling that UE sends, and sets up for user Corresponding relation between L2TP Tunnel, PPP session and PMIPv6 tunnel;
When X-MAG receives triggering signaling/access request signaling that UE sends, received signaling can be resolved In the parameter carried, moreover it is possible to send vital stage zero setting (PBU) message to P-GW, PBU message carried Parameter in all/part access request signaling;Accordingly, UE is sent to the triggering signaling of X-MAG/connect Enter demand signalling, portability or do not carry UE in the IP address of fixing Network Capture, terminal iidentification, access The parameters such as network mark knowledge;UE also receives access request response message;
X-MAG can also receive the off-line request message that UE sends, and resolves the parameter carried in message, also Send PBU message to P-GW, PBU message is carried the parameter in all/part access request message; Accordingly, UE sends off-line request message to X-MAG, and portability terminal iidentification, access network mark etc. are joined Number, UE also receives off-line request-reply message;
X-MAG can also receive the binding that P-GW sends and remove instruction (BRI, Binding Revocation Indication) message, and resolve the parameter carried in message, sends to UE and corresponding disconnects request.
It addition, X-MAG can also realize P-GW selects function;X-MAG is also in the IPv4 address of UE Forward and transmission with IPv6 address prefix assigning process is responsible for address;
X-MAG can be directly connected to or through BBF with 3GPP AAA/3GPP AAA agency (Proxy) Aaa server/agency is connected with 3GPP AAA/3GPP AAA Proxy as agency, it is achieved based on 3GPP Access authentication of user, and as authenticating party, accordingly, UE supports access authentication of user based on 3GPP. Concrete X-MAG Yu 3GPP AAA/3GPP AAA agency or the connection of BBF aaa server/agency, Can use the protocol stack corresponding with connected network element, how protocol stack is set to prior art.
Arranging based on chain of command protocol stack and user face protocol stack, Ya interface supports ppp protocol;Yb interface Upper support L2TP protocol stack and ppp protocol stack;Support the encapsulation/decapsulation of packet;Support access request The transmission of the signalings such as/response signaling, off-line request/response signaling.Wherein, described support encapsulation refers to: for Uplink data messages, the IP address encapsulation of data message that UE distributes by 3GPP core net, then seal at outer layer Load onto the IP address of fixing network allocation;After data arrive X-MAG, X-MAG is by outermost layer IP address Peel off, then in the PMIPv6 tunnel being encapsulated between X-MAG and P-GW, be sent to P-GW;Described Support decapsulation refers to: for downlink data message, after P-GW arrives X-MAG, X-MAG removes After the PMIP tunnel head of these data, fix the local ip address of network allocation at data message outer envelope, And be routed to after UE, UE receive this data message, peel off outermost layer and the IP address of time outer layer successively, To payload.
For upstream data bag, UE uses the IP address encapsulation of data message of 3GPP core net distribution, then Encapsulate through PPP layer;After data arrive BNG/BRAS, BNG/BRAS carries out L2TP encapsulation again; After data arrive X-MAG, X-MAG solution goes L2TP and PPP to encapsulate, and retains internal layer IP address, it Post package enters in the PMIPv6 tunnel between X-MAG and P-GW issues P-GW.For downlink data, X-MAG solution removes the PMIP tunnel head of packet, retains internal layer IP address, is then passed through PPP and L2TP Two-layer encapsulates;After data arrive BNG/BRAS, after BNG/BRAS solution goes L2TP encapsulation, by packet It is transmitted to UE;After UE receives this data message, solution goes PPP to encapsulate, and peels off IP address, obtains effectively Load.
It should be understood that X-MAG, Ya interface referred to herein, Yb interface, it is intended merely to description side Just give a kind of title call that the particular gateway in the present invention, interface propose, in actual application, can use Any other title call, as long as the function of correspondence is identical.
On implementing, X-MAG can use server to realize, it is also possible at existing mobile anchor point net Function recited above etc. is increased on the basis of pass.
In actual applications, described mobile network can be EPS, and includes roaming scence and non-roaming scene; Under non-roaming scene, described mobile network is referred to as local network;Under roaming scence, described mobile network It is divided into home network and visited network;Accordingly, X-MAG is connected with fixing network and mobile network, structure The network integration framework become has various ways, is respectively suitable for non-roaming scene and roaming scence.
Corresponding above-mentioned converging fixed network (bridge mode) and the system of mobile network, the present invention also proposes one The method planting converging fixed network and mobile network, the method includes: X-MAG processes UE and accesses mobile network The control signaling of network, and route UE through mobile network's outgoing or the data of reception, described fixing network be The fixing network of bridge mode, described X-MAG is connected to BNG/BRAS and the mobile network of fixing network P-GW between, Ya interface is set between UE and described BNG/BRAS, described BNG/BRAS with Yb interface is set between described X-MAG.
The chain of command protocol stack of described X-MAG at least includes L1/L2 layer, IP layer, and L1/L2 layer is bottom Bearing bed;On IP layer, connect P-GW side, be carried on IP layer be UDP layer and PMIPv6 layer;Connecting the side of BNG/BRAS, being carried on IP layer is UDP layer, Yb control Face protocol layer;Accordingly, in the protocol stack on the Yb interface of described BNG/BRAS, arrange on IP layer UDP layer, Yb chain of command protocol layer;In the chain of command protocol stack of the Ya interface of described UE, On Ethernet/802.11 serial protocols layer, directly carrying Ya chain of command agreement;Accordingly, described In chain of command protocol stack on the Ya interface of BNG/BRAS, on Ethernet layer, directly carrying Ya control Face processed agreement;The chain of command protocol stack of described P-GW is connected the control of the side of P-GW with described X-MAG Face processed protocol stack is identical.
Described X-MAG processes the control signaling of UE access to mobile network:
When UE needs to send chain of command signaling, described UE sends chain of command signaling to BNG/BRAS;Institute State BNG/BRAS and receive after the chain of command signaling of UE, create for user or find correct tunnel, And be responsible for being encapsulated in tunnel chain of command signaling, it is transmitted to X-MAG;Described X-MAG receives from institute After stating the signaling of BNG/BRAS, chain of command signaling from UE in this signaling is taken out, and carries out corresponding Operation;
When X-MAG needs to send chain of command signaling, chain of command signaling is encapsulated in tunnel by X-MAG, and It is sent to BNG/BRAS by correct tunnel;Described BNG/BRAS receives from described X-MAG Signaling after, take out chain of command signaling therein, and be transmitted to UE;Described UE is according to the chain of command received Signaling operates accordingly.
The user face protocol stack of described X-MAG at least includes L1/L2 layer, IP layer, and L1/L2 layer is bottom Bearing bed;On IP layer, connect P-GW side, be carried on IP layer be UDP layer and PMIPv6 layer;Connecting the side of BNG/BRAS, being carried on IP layer is UDP layer, Yb user Face protocol layer;Accordingly, in the user face protocol stack on the Yb interface of described BNG/BRAS, IP layer it On UDP layer, Yb user plane protocol layer are set;In the user face protocol stack of the Ya interface of described UE, Ya user plane protocol layer is carried, on described Ya user plane protocol layer on Ethernet/802.11 serial protocols layer Carrying IP layer;Accordingly, in the user face protocol stack on the Ya interface of described BNG/BRAS, at Ethernet On layer, directly carrying Ya user plane protocol;The user face protocol stack of described P-GW is at described X-MAG The superiors of the user face protocol stack connecting the side of P-GW carry IP layer again.
Described X-MAG route UE through the data of mobile network's outgoing or reception is:
When UE needs to send user face data, upstream data wraps in the encapsulation 3GPP core net distribution of IP layer IP address, then after Ya interface user plane protocol layer encapsulates, it is transmitted to BNG/BRAS;By described BNG/BRAS is transferred to X-MAG after carrying out Yb interface user plane protocol encapsulation;Described X-MAG pair Upstream data bag from UE carries out decapsulation process, and solution goes the encapsulation of Yb interface user plane protocol and Ya to connect Mouth user plane protocol encapsulation, retains internal layer IP address, is encapsulated into afterwards in tunnel and issues P-GW;
X-MAG needs to send user face data, when i.e. receiving from the downlink data in the tunnel of P-GW, For the downlink data in the described tunnel from P-GW, X-MAG solution goes tunnel encapsulation, retains internal layer IP Address, after being then passed through the encapsulation of Yb interface user plane protocol and the encapsulation of Ya interface user plane protocol, is transferred to BNG/BRAS;After described BNG/BRAS solution goes the encapsulation of Yb interface user plane protocol, packet is forwarded To UE;After the downlink data from X-MAG that described UE receives, carrying out decapsulation process, solution is gone Ya interface user plane protocol encapsulates, and is handed down to the IP layer of UE side afterwards, carries out subsequent treatment.
For the fixing network of route pattern, can not between UE and X-MAG directly for solving PPP signaling Connect mutual problem, one converging fixed network (route pattern) of the present invention and the method for mobile network, make UE can realize trusted non-3 gpp under the framework that Fig. 3, Fig. 4 are proposed in the way of simple possible Access.Its basic thought is: X-MAG processes the control signaling of UE access to mobile network, and route UE is through mobile network's outgoing or the data of reception, and described X-MAG is connected to the BNG/BRAS of fixing network And between the P-GW of mobile network, described UE and described X-MAG supports use L2TP agreement to hold Carrying PPP signaling, Fig. 7 is the network of the UE of the present invention fixing network insertion mobile network by route pattern Chain of command protocol stack one schematic diagram of X-MAG and related network elements thereof under framework, as it is shown in fig. 7,
The chain of command protocol stack of X-MAG at least includes L1/L2 (Layer 1/Layer 2) layer, IP layer, L1/L2 Layer is bottom bearing bed;On IP layer, connecting the side of P-GW, being carried on IP layer is UDP Layer and PMIPv6 layer, say, that between X-MAG and P-GW, on IP layer, pass through PMIPv6 Alternately;Connecting the side of UE, being carried on IP layer is UDP layer, L2TP layer, PPP layer.Phase Corresponding, in the protocol stack of UE side, UDP layer, L2TP layer and PPP layer are set on IP layer, with Realize the PPP between UE and X-MAG and control the mutual of signaling.
Transmitting for chain of command, UE needs create for user or find correct L2TP Tunnel, and by PPP Signaling is encapsulated in L2TP signaling and is sent to X-MAG;X-MAG receives the L2TP signaling from UE After, need to take out the PPP signaling in this signaling, and according to its content carry out operating (e.g., authentication, build Vertical PMIPv6 binding etc.).(e.g., authorizing procedure, the PMIPv6 when X-MAG needs to send chain of command signaling When the flow processs such as binding flow process need to carry out Signalling exchange with UE), PPP signaling is encapsulated in by X-MAG In L2TP signaling, and it is sent to UE by correct L2TP Tunnel;UE receives from X-MAG's After L2TP signaling, need to be taken out PPP signaling, and grasp accordingly according to the PPP signaling received Make.
The user face protocol stack of X-MAG at least includes L1/L2 layer, IP layer, and L1/L2 layer is bottom bearing bed; On IP layer, connecting the side of P-GW, being carried on IP layer is UDP layer and PMIPv6 layer; Connecting the side of UE, being carried on IP layer is that UDP layer, L2TP layer and PPP assist layer;At UE User face protocol stack in, UDP layer, L2TP layer and ppp protocol layer are set on IP layer, at PPP IP layer is carried on layer;The user face protocol stack of described P-GW is to connect the one of P-GW at described X-MAG The superiors of the user face protocol stack of side carry IP layer again.
Transmitting for user face, in UE side, upstream data wraps in the encapsulation 3GPP core net distribution of IP layer Behind IP address, after PPP layer and L2TP layer two-layer encapsulate, it is sent to X-MAG;X-MAG is to coming From the upstream data bag of UE, carrying out decapsulation process, solution goes L2TP and PPP to encapsulate, and retains internal layer IP Address, is encapsulated into afterwards in tunnel and issues P-GW.For the downlink data in the tunnel from P-GW, X-MAG solution goes tunnel encapsulation, retains internal layer IP address, after then entering the encapsulation of PPP and L2TP two-layer, It is sent to UE;After the downlink data from X-MAG that UE receives, carry out decapsulation process, solution go L2TP, PPP encapsulates, and is handed down to the IP layer of UE side afterwards, carries out subsequent treatment.
Based on Fig. 3, Fig. 4 network architecture, for the scene of UE access to mobile network, according to the operation of UE Different to having different flow processs, such as: UE access/attachment flow, UE off-line/attachment removal flow process, UE from Flow process that 3GPP IP access network switches to fixing network and set up the flow process etc. that additional PDN connects.Under Face by combine Figure 18 to Figure 21 respectively be discussed in detail use the inventive method time UE access/attachment flow, Flow process that UE off-line/attachment removal flow process, UE switch to fixing network from 3GPP IP access network and setting up The flow process that additional PDN connects, each handling process described is all applicable to roaming, the various nets of non-roaming scene Network framework.Wherein, the BBF AAA in figure refers to BBF aaa server/agency.
Below in conjunction with specific embodiment, the enforcement of technical solution of the present invention is described in further detail.
Embodiment 1
Fig. 8 is the net of the fixing network insertion mobile network that UE passes through bridge mode in the embodiment of the present invention 1 Network configuration diagram, as shown in Figure 8, in the present embodiment, UE is arrived by the fixing network insertion of bridge mode EPS core net, wherein fixes the network trusted non-3 GPP access as EPS, network rack shown in Fig. 8 Structure is the network architecture of non-roaming scene.In the present embodiment, X-MAG passes through BBF aaa server/generation Reason (Server/Proxy) is connected with 3GPPAAA, it is achieved access authentication of user based on 3GPPAAA.
In the present embodiment, X-MAG is arranged at the P-GW and the BNG/BRAS of fixing network of mobile network Between, support the MAG function in PMIPv6 agreement, support L2TP agreement and ppp protocol, and logical Crossing Yb interface to be connected with BNG/BRAS, BNG/BRAS is connected with UE by Ya interface;X-MAG、 The chain of command protocol stack of BNG/BRAS and UE and User Agreement stack are arranged the most as shown in Figure 5 and Figure 6, It is respectively arranged with L2TP layer and PPP on the chain of command protocol stack of Yb interface and the IP layer of User Agreement stack Layer, is respectively arranged with on the chain of command protocol stack of Ya interface and the Ethernet layer of user face protocol stack PPP layer, is respectively used to realize controlling between X-MAG and UE signaling and the transmission of user data.
In actual application, when UE is via mobile network's outgoing data, UE sends the data to BNG/BRAS, is transmitted to X-MAG by BNG/NRAS by L2TP Tunnel, sends out via X-MAG Deliver to mobile network side;Or, when UE receives from the data of mobile network side, X-MAG will be from The data of mobile network side are transmitted to BNG/BRAS, BNG/BRAS by L2TP Tunnel and relay to UE。
When UE and mobile network's interactive control information, the control signaling carrying control information is passed through by UE BNG/BRAS is sent to X-MAG, triggers X-MAG and initiates the associative operation in mobile network;Or, X-MAG receives after the signaling triggering of mobile network side network element or own event, through BNG/BRAS, Send descending control signaling to UE.
Concrete, described UE via mobile network's outgoing data is: upstream data is first used 3GPP core by UE The IP address of heart net distribution is carried out as purpose IP address as internal layer source IP address, Correspondent Node IP address Encapsulation, then carry out PPP encapsulation, it is transmitted to BNG/BRAS afterwards;BNG/BRAS is up to receive Packet is transmitted to X-MAG after carrying out L2TP encapsulation;The X-MAG up from UE to receiving Packet, solution is gone L2TP and PPP to encapsulate, is retained internal layer source IP address and purpose IP address, seal afterwards Load in PMIPv6 tunnel and be sent to P-GW.
UE accepts: downlink data solution PMIPv6 is encapsulated by X-MAG, Retain internal layer source IP address and purpose IP address, after the most then entering the encapsulation of PPP and L2TP two-layer, It is transmitted to BNG/BRAS;After BNG/BRAS receives downlink data packet, after going L2TP encapsulation, by data Bag is transmitted to UE;The UE downlink data from X-MAG to receiving, solution goes PPP to encapsulate, in peelling off Layer IP address, obtains payload.
The control signaling carrying control information is sent to X-MAG through BNG/BRAS by UE, triggers The associative operation that X-MAG initiates in mobile network is: UE sends PPP signaling to BNG/BRAS; BNG/BRAS receives after the PPP chain of command signaling of UE, needs create for user or find correct L2TP Tunnel, and be responsible for being encapsulated in L2TP signaling PPP signaling, it is transmitted to X-MAG;X-MAG Receive after the L2TP signaling of BNG/BRAS, need to take out the PPP signaling in this signaling, and root Carry out operating (e.g., authenticate, set up PMIPv6 binding etc.) according to its content.
X-MAG receives after the signaling triggering of mobile network side network element or own event, sends descending control Signaling processed to UE is: X-MAG receives the letter of P-GW and/or the 3GPP AAA from mobile network side Order trigger or own event signaling trigger, need send chain of command signaling time (e.g., authorizing procedure, When the flow processs such as PMIPv6 binding flow process need to carry out Signalling exchange with UE), X-MAG is by PPP signaling It is encapsulated in L2TP signaling, and is sent to BNG/BRAS by correct L2TP Tunnel;BNG/BRAS After receiving, take out PPP signaling therein, and be transmitted to UE;UE carries out phase according to the PPP signaling received The operation answered.
Wherein, described upstream control signaling can be: UE please to the PPP LCP configuration that X-MAG sends Ask or PPP NCP configuring request or PPP LCP terminate request or PPP NCP termination request etc..;
Described descending control signaling can be: PPP NCP configuration response that X-MAG sends to UE or PPP LCP configuration response or PPP LCP terminate response or PPP NCP terminates response etc..
Embodiment 2
Fig. 9 is the net of the fixing network insertion mobile network that UE passes through bridge mode in the embodiment of the present invention 2 Network configuration diagram, as it is shown in figure 9, in the present embodiment, UE is arrived by the fixing network insertion of bridge mode EPS core net, wherein fixes the network trusted non-3 GPP access as EPS, network rack shown in Fig. 9 Structure is the network architecture of non-roaming scene.
As different from Example 1: in the present embodiment, X-MAG is not by BBF aaa server/generation Reason is connected with 3GPP AAA, but is directly connected with 3GPP AAA, it is achieved use based on 3GPP AAA Family access authentication.In addition other aspects (protocol stack setting, interface function, the control letter of the present embodiment Order the mutual and transmitting procedure etc. of uplink and downlink data) all with the function described by embodiment 1, Principle is identical, and no further details to be given herein.
Embodiment 3
Figure 10 is the net of the fixing network insertion mobile network that UE passes through bridge mode in the embodiment of the present invention 3 Network configuration diagram, as shown in Figure 10, in the present embodiment, the UE fixing network insertion by bridge mode To EPS core net, wherein fix the network trusted non-3 GPP access as EPS.Net shown in Figure 10 Network framework is roaming scence, the network architecture of local route, including local public land mobile network (home Public Land Mobile Network, hPLMN) and Visited PLMN (vPLMN), BPCF passes through VPCRF with hPCRF is connected, vPCRF with hPCRF is connected by roaming interface S9 interface;BBFAAA Servers/proxies is connected with 3GPP AAA and HSS by 3GPP AAA agency;Accordingly, originally In embodiment, X-MAG is acted on behalf of by BBF aaa server/agency and 3GPP AAA, 3GPP AAA It is connected, it is achieved access authentication of user based on 3GPPAAA.
In the present embodiment, P-GW selects to be placed in home network, and X-MAG passes through roaming interface and P-GW Being connected, here, roaming interface is S2a interface.
Various aspects (protocol stack setting, interface function, mutual, the Yi Jishang of control signaling of the present embodiment Row and the transmitting procedure etc. of downlink data) all identical, at this not with the function described by embodiment 1, principle It is described in detail.
Embodiment 4
Figure 11 is the net of the fixing network insertion mobile network that UE passes through bridge mode in the embodiment of the present invention 4 Network configuration diagram, as shown in figure 11, in the present embodiment, the UE fixing network insertion by bridge mode To EPS core net, wherein fix the network trusted non-3 GPP access as EPS.Net shown in Figure 11 Network framework is roaming scence, the network architecture of local route, selects including hPLMN and vPLMN, P-GW Selecting and be placed in home network, X-MAG is connected with P-GW by roaming interface S2a interface;BPCF leads to Crossing vPCRF with hPCRF to be connected, vPCRF with hPCRF is connected by roaming interface S9 interface.
As different from Example 3: in the present embodiment, X-MAG is not by BBF aaa server/generation Manage and be connected with 3GPP AAA agency, 3GPP AAA, but directly acted on behalf of and 3GPP by 3GPP AAA AAA is connected, it is achieved access authentication of user based on 3GPP AAA, accordingly, and BBF aaa server/ Agency is not connected with 3GPP AAA Proxy.
Various aspects (protocol stack setting, interface function, mutual, the Yi Jishang of control signaling of the present embodiment Row and the transmitting procedure etc. of downlink data) all identical, at this not with the function described by embodiment 2, principle It is described in detail.
Embodiment 5
Figure 12 is the net of the fixing network insertion mobile network that UE passes through bridge mode in the embodiment of the present invention 5 Network configuration diagram, as shown in figure 12, in the present embodiment, UE by fixing network insertion to EPS core Net, wherein fixes the network trusted non-3 GPP access as EPS.The network architecture shown in Figure 12 and enforcement Example three is essentially identical, is connected by vPCRF with hPCRF including hPLMN and vPLMN, BPCF, VPCRF with hPCRF is connected by roaming interface S9 interface;BBF aaa server/agency passes through 3GPP AAA Proxy and 3GPP AAA and HSS is connected;Accordingly, in the present embodiment, X-MAG leads to Cross BBF aaa server/agency to be connected with 3GPP AAA agency, 3GPP AAA, it is achieved based on 3GPP The access authentication of user of AAA.
The present embodiment is as different from Example 3: the P-GW in the present embodiment selects to be placed on visited network In, X-MAG is connected with P-GW by local interface.
Various aspects (protocol stack setting, interface function, mutual, the Yi Jishang of control signaling of the present embodiment Row and the transmitting procedure etc. of downlink data) all identical, at this not with the function described by embodiment 1, principle It is described in detail.
Embodiment 6
Figure 13 is the net of the fixing network insertion mobile network that UE passes through bridge mode in the embodiment of the present invention 6 Network configuration diagram, as shown in figure 13, in the present embodiment, the UE fixing network insertion by bridge mode To EPS core net, wherein fix the network trusted non-3 GPP access as EPS.Net shown in Figure 13 Network framework is substantially the same manner as Example 5, selects to be placed on visit including hPLMN and vPLMN, P-GW In network, X-MAG is connected with P-GW by local interface;BPCF passes through vPCRF and hPCRF phase Even, vPCRF with hPCRF is connected by roaming interface S9 interface.
As different from Example 5: in the present embodiment, X-MAG is not by BBF aaa server/generation Manage and be connected with 3GPP AAA agency, 3GPP AAA, but directly acted on behalf of and 3GPP by 3GPP AAA AAA is connected, it is achieved access authentication of user based on 3GPP AAA, accordingly, and BBF aaa server/ Agency is not connected with 3GPP AAA Proxy.
Various aspects (protocol stack setting, interface function, mutual, the Yi Jishang of control signaling of the present embodiment Row and the transmitting procedure etc. of downlink data) all identical, at this not with the function described by embodiment 2, principle It is described in detail.
Based on the above-mentioned various network architectures, for the scene of UE access to mobile network, according to the operation of UE Different to having different flow processs, such as: UE access/attachment flow, UE off-line/attachment removal flow process, UE from Flow process that 3GPP IP access network switches to fixing network and set up the flow process etc. that additional PDN connects.Under Face combine Figure 14 to Figure 17 be discussed in detail respectively UE access/attachment flow, UE off-line/attachment removal flow process, Flow process that UE switches to fixing network from 3GPP IP access network and set up the flow process that additional PDN connects, Each handling process described is all applicable to roaming, the various network architectures of non-roaming scene.Wherein, in figure BBF AAA refers to BBF aaa server/agency.
Embodiment 7
Figure 14 is the net of the fixing network insertion mobile network that UE passes through bridge mode in the embodiment of the present invention 7 What under network framework, UE accessed/adheres to realizes schematic flow sheet, and the network architecture being based on can be if Fig. 8 is to figure 13 is arbitrary shown.Concrete, UE access/attachment flow of the present invention comprises the following steps:
Step 1401:UE sends ppp link control protocol (Link by Ya interface to BNG/BRAS Control Protocol, LCP) configuring request, carry out PPP LCP negotiation with BNG/BRAS.
PPP LCP configuring request in the present embodiment belongs to a kind of access/attachment request.
Step 1402:BNG/BRAS initiates access authentication to BBF AAA, here, it is therefore possible to use PAP Or the mode such as CHAP or EAP-AKA completes the fixed network access authentication to user.
The most meanwhile, BNG/BRAS needs to obtain in this step the L2TP attribute of UE, UE Whether PPP session terminates in X-MAG, if need to start the foundation of L2TP Tunnel.When user is 3GPP User, then it is assumed that PPP termination, at X-MAG, needs the L2TP setting up between BNG/BRAS and X-MAG Tunnel.
BBF AAA finds that it is 3GPP user, and PPP termination at X-MAG, then returns this user PPP Terminate in X-MAG to BNG/BRAS.Or the L2TP attribute of BNG/BRAS upper configuration user, this Time be no longer necessary to BBF AAA and inquire about.In such a scenario, the access authentication of fixed network is the most not Can complete, or will not start.
Step 1403: after fixed network access authentication is successfully completed in step 1402, BNG/BRAS is to BPCF Initiating fixed network strategy session and set up request, BNG/BRAS Yu BPCF sets up the meeting applying for/issue dynamic strategy Words, in order to realize accurately controlling to Internet resources distribution and user admission.
Step 1404:BNG/BRAS is initiated the L2TP Tunnel between X-MAG and is set up.
The authentication parameter of user is sent to X-MAG by step 1405:BNG/BRAS, starts 3GPP's Access authentication.The access of user's access to mobile network is carried out alternately between X-MAG and 3GPP HSS/AAA Authentication.Here, use authentication mode based on 3GPP to complete the access authentication to user, described based on 3GPP Authentication mode can be EAP-AKA.
When in step 1402, the access authentication of fixed network does not start, this step does not performs, and performs 1406 steps.
When the authentication pattern that BNG/BRAS Yu UE in step 1401 consults, the mirror supported with mobile network When power pattern differs, this step performs failure, performs 1406 steps.
Step 1406: the authentication pattern consulted as BNG/BRAS Yu UE in step 1401, with mobile network The authentication pattern of network support differs, or when in step 1402 access authentication of fixed network do not start or complete Time, X-MAG triggers the LCP again initiated with UE to be consulted.
Step 1407: terminal accesses shifting by carrying out user alternately between X-MAG and 3GPP HSS/AAA The access authentication of dynamic network.Here, use authentication mode based on 3GPP to complete the access authentication to user, Described authentication mode based on 3GPP can be EAP-AKA.
Step 1408:UE sends PPP NCP configuring request to X-MAG, carries out PPP NCP with X-MAG Consult.Message will be UE in match messages to step 1404 through BNG/BRAS, BNG/BRAS On the L2TP Tunnel set up, PPP message is encapsulated in L2TP Tunnel, is transmitted to X-MAG.
Here, described configuring request is at least carried the mobile network ID of UE, APN (APN) etc. Parameter;UE is sent in the PPP NCP configuring request of X-MAG, can carry or not carry UE IP address ip 1 at fixing Network Capture.
Step 1409:X-MAG receives after the L2TP message of BNG/BRAS, removes L2TP Encapsulation, obtains the PPP NCP configuring request that UE sends.X-MAG, as the MAG of PMIPv6, sends out Send PBU message to P-GW, request and the tunnel binding of P-GW.Treat that follow-up PMIPv6 tunnel has been set up Cheng Hou, X-MAG need set up L2TP Tunnel, PPP session and the corresponding relation in PMIPv6 tunnel and deposit Storage.
After step 1410:P-GW receives PBU message, create banding cache entrance (BCE, Binding Cache Entry), the IP address ip 2 and for UE distribution 3GPP core net distributed;
Here, how P-GW sets up IP-CAN session with PCRF is prior art;Wherein, PCRF exists Distinguish v/hPCRF under roaming scence, under non-roaming scene, there is not vPCRF.
Step 1411:P-GW is sent to 3GPP HSS/AAA by diameter protocol (Diameter) signaling APN/P-GW mark is right, stores the mark of this P-GW.
Step 1412:P-GW responds PBA message to X-MAG, and carries 3GPP in this PBA message Core net is the IP address ip 2 of UE distribution.
Step 1413:X-MAG and UE complete PPP NCP to be consulted, will by PPP NCP configuration response The IP address ip 2 distributing to UE is sent to UE.X-MAG is by PPP NCP configuration response message encapsulation In L2TP Tunnel, it is sent to BNG/BRAS, BNG/BRAS and removes L2TP Tunnel encapsulation, take out PPP message, and it is transmitted to UE.
Step 1414: triggering based on step 1410 operation, PCRF initiates strategy session to BPCF and sets up Request, Establishment strategy session;
Here, the strategy session set up is similar to the gateway control session defined in 3GPP, by this meeting Words, BPCF obtains relevant QoS and charging policy from strategy universal control point PCRF;
Wherein, under roaming scence, can be through vPCRF between BPCF and hPCRF;Under non-roaming scene, There is not vPCRF.
Step 1415: when step 1403 is not carried out, now starts the foundation of fixed network strategy session.
Step 1416: complete the transmission of data service.
For uplink data messages, the IP address conduct that upstream data is first distributed by UE by 3GPP core net Internal layer source IP address, Correspondent Node IP address are packaged as purpose IP address, then carry out PPP encapsulation, It is transmitted to BNG/BRAS afterwards;After BNG/BRAS carries out L2TP encapsulation to the upstream data bag received It is transmitted to X-MAG;The X-MAG upstream data bag from UE to receiving, solution removes L2TP and PPP Encapsulation, retains internal layer source IP address and purpose IP address, is encapsulated into afterwards in PMIPv6 tunnel and is sent to P-GW;
For downlink data message, downlink data solution PMIPv6 is encapsulated by X-MAG, retains internal layer source IP Address and purpose IP address, after the most then entering the encapsulation of PPP and L2TP two-layer, be transmitted to BNG/BRAS;After BNG/BRAS receives downlink data packet, after going L2TP encapsulation, packet is forwarded To UE;The UE downlink data from X-MAG to receiving, solution is gone PPP to encapsulate, is peelled off internal layer IP Address, obtains payload.
Embodiment 8
Figure 15 is the net of the fixing network insertion mobile network that UE passes through bridge mode in the embodiment of the present invention 8 Under network framework UE off-line/attachment removal realize schematic flow sheet, the network architecture being based on can such as Fig. 8 extremely Shown in Figure 13 is arbitrary.Concrete, UE of the present invention includes following step from mobile network's off-line/attachment removal flow process Rapid:
Step 1501:UE is by fixing network insertion EPS core net, and sets up at least one PDN connection.
Step 1502:UE sends PPP session termination and asks, to X-MAG, to ask off-line/attachment removal/deletion PDN connects.Message through BNG/BRAS, BNG/BRAS by match messages to setting up for UE On L2TP Tunnel, PPP message is encapsulated in L2TP Tunnel, is transmitted to X-MAG.
Here, described PPP session is LCP or NCP, corresponding, the request of PPP session termination is PPP LCP Terminate request or terminate request for PPP NCP;Typically, UE needs for some reason, may initiate Off-line/attachment removal or delete certain PDN connect operation.
Step 1503:X-MAG receives after the L2TP message of BNG/BRAS, removes L2TP Encapsulation, obtains the PPP session termination request that UE sends.X-MAG, as the MAG of PMIPv6, sends out Send PBU message to P-GW, and carry vital stage zero setting instruction, request with P-GW release tunnel binding;
Here, if individually PDN connects deletion, can only release that PDN to be discharged and connect PMIPv6 tunnel;If off-line/attachment removal, then to remove each PMIPv6 tunnel respectively;Accordingly , after P-GW receives PBU message, the tunnel binding context with X-MAG can be deleted.
Step 1504:P-GW removes the IP-CAN session between PCRF.
Step 1505:P-GW sends APN/P-GW by Diameter signaling to 3GPP HSS/AAA It is right to identify, and notice 3GPP HSS/AAA deletes the mark of P-GW.
Step 1506:P-GW responds PBA message to X-MAG.
Step 1507:X-MAG returns PPP to UE and terminates response, notifies UE off-line/attachment removal/PDN Connect deletion to complete.PPP is terminated response message and is encapsulated in L2TP Tunnel by X-MAG, is sent to BNG/BRAS, BNG/BRAS remove L2TP Tunnel encapsulation, take out PPP message, and are transmitted to UE.
Here, described PPP terminates response can be that PPP LCP terminates response or PPP NCP terminates answering Answer;Described notice UE off-line/attachment removal/PDN connects deletion and includes: notice UE PPP session teardown, PDN Connect and delete.
Step 1508: if attachment removal/off-line operation, fixing network has also needed local Connection Release, basis Ground resource release;Connecting if only deleting certain PDN, the most only discharging the resource of correspondence, other PDN The resource connected continues to retain.
Embodiment 9
Figure 16 is the net of the fixing network insertion mobile network that UE passes through bridge mode in the embodiment of the present invention 9 Under network framework, UE realizes schematic flow sheet from 3GPP IP access network to what fixing network switched, is based on The network architecture can as arbitrary in Fig. 8 to Figure 13 shown in.Described handoff procedure refers to that UE is by fixing network After accessing/be attached to EPS core net, need the most again to switch to fixing network.Concrete, this Invention UE comprises the following steps from 3GPP access network to the switching flow of fixing network:
Step 1601:UE completes trusted 3GPP by fixing network and accesses.
The certainly directional at-tachment network switching for some reason of step 1602:UE;
Here, described reason can be 3GPP wireless access signal variation etc..
Step 1603: with step 1401-1415.
Step 1604:P-GW initiates 3GPP access network resource deexcitation flow process.
Here, because UE has been switched to fixing network insertion, therefore, the related resource of 3GPP access network Capital deexcitation or deletion, this step is prior art.
Embodiment 10
Figure 17 is the UE fixing network insertion mobile network by bridge mode in the embodiment of the present invention 10 That sets up additional PDN connection establishment under the network architecture realizes schematic flow sheet, and the network architecture being based on is permissible Shown in as arbitrary in Fig. 8 to Figure 13.Owing to, in EPS, UE can visit multiple PDN, and foundation is many simultaneously Individual PDN connects, obtain multiple/to IPv4/IPv6 address, what this flow process described be exactly after UE attachment, Set up the operating process that additional PDN connects.Concrete, the present invention sets up the flow process bag that additional PDN connects Include following steps:
Step 1701:UE, by fixing network insertion/be attached to EPS core net, concrete accesses/attachment Flow process is as described in Figure 14.
When step 1702:UE needs additional PDN to connect, send PPP NCP configuring request to X-MAG, PPP NCP negotiation is carried out with X-MAG.Message is through BNG/BRAS, and BNG/BRAS is by message Match on the L2TP Tunnel for UE foundation, PPP message is encapsulated in L2TP Tunnel, is transmitted to X-MAG。
Here, the parameters such as mobile network ID, APN of at least carrying UE in described configuring request;UE sends To in the PPP NCP configuring request of X-MAG, can carry or not carry UE at fixing Network Capture IP address ip 1.
Step 1703:X-MAG receives after the L2TP message of BNG/BRAS, removes L2TP Encapsulation, obtains the PPP NCP configuring request that UE sends.X-MAG, as the MAG of PMIPv6, sends out Send PBU message to P-GW, request and the tunnel binding of P-GW.Treat that follow-up PMIPv6 tunnel has been set up Cheng Hou, X-MAG need set up L2TP Tunnel, PPP session and the corresponding relation in PMIPv6 tunnel and deposit Storage.
After step 1704:P-GW receives PBU message, create BCE, and distribute 3GPP core for UE The IP address ip 2 of net distribution;
Here, how P-GW sets up IP-CAN session with PCRF is prior art;Wherein, PCRF exists Distinguish v/hPCRF under roaming scence, under non-roaming scene, there is not vPCRF.
Step 1705:P-GW sends APN/P-GW by Diameter signaling to 3GPP HSS/AAA It is right to identify, and stores the mark of this P-GW.
Step 1706:P-GW responds PBA message to X-MAG, and carries 3GPP in this PBA message Core net is the IP address ip 2 of UE distribution.
Step 1707:X-MAG and UE complete PPP NCP to be consulted, will by PPP NCP configuration response The IP address ip 2 distributing to UE is sent to UE.X-MAG is by PPP NCP configuration response message encapsulation In L2TP Tunnel, it is sent to BNG/BRAS, BNG/BRAS and removes L2TP Tunnel encapsulation, take out PPP message, and it is transmitted to UE.
Step 1708: if the PCC strategy in PCRF has change, then PCRF can be by setting up The PCC strategy of renewal is sent to BPCF, BPCF by the strategy session between BPCF and PCRF also can root According to practical situation to BNG/BRAS more New Policy, BNG/BRAS can be corresponding according to the strategy execution updated Operation.
Embodiment 11
Figure 18 is the UE fixing network insertion mobile network by route pattern in the embodiment of the present invention 11 What under the network architecture, UE accessed/adheres to realizes schematic flow sheet, the network architecture being based on such as Fig. 3, Fig. 4 Shown in.Concrete, UE access/attachment flow of the present invention comprises the following steps:
Step 1801:RG passes through access authentication according to existing fixing network authentication mode.RG and fixing net Network is set up this locality and is connected, and obtains the local ip address that fixing network is its distribution.UE accesses RG, RG Private net address IP1 is distributed for it.
Step 1802: receive local connection establishment step and/or the triggering of authentication step, BNG/BRAS to BPCF initiates fixed network strategy session and sets up request, BNG/BRAS Yu BPCF sets up and apply for/issue dynamic plan Session slightly, in order to realize accurately controlling to Internet resources distribution and user admission.
Step 1803:UE by Y interface to X-MAG initiate L2TP Tunnel set up, set up UE with Tunnel between X-MAG.
Step 1804:UE sends PPP LCP configuring request by Y interface to X-MAG, with X-MAG Carry out PPP LCP negotiation.UE by match messages to step 1803 for UE set up L2TP Tunnel on, And PPP signaling is encapsulated in L2TP signaling and is sent to X-MAG.X-MAG receive from After the L2TP message of BNG/BRAS, remove L2TP encapsulation, obtain the PPP message that UE sends, and Operate accordingly according to PPP information.
PPP LCP configuring request in the present embodiment belongs to a kind of access/attachment request.
Step 1805: terminal accesses shifting by carrying out user alternately between X-MAG and 3GPP HSS/AAA The access authentication of dynamic network.Here, use authentication mode based on 3GPP to complete the access authentication to user, Described authentication mode based on 3GPP can be EAP-AKA.PPP signaling is encapsulated in L2TP letter by UE Order is sent to X-MAG.X-MAG receives after the L2TP message of BNG/BRAS, removes L2TP encapsulates, and obtains the PPP message that UE sends, and operates accordingly according to PPP information.
Step 1806:UE sends PPP NCP configuring request to X-MAG, carries out PPP NCP with X-MAG Consult.PPP message is encapsulated in L2TP Tunnel by UE, is transmitted to X-MAG.
Here, described configuring request is at least carried the mobile network ID of UE, APN (APN) etc. Parameter;UE is sent in the PPP NCP configuring request of X-MAG, can carry or not carry UE IP address ip 1 at fixing Network Capture.
Step 1807:X-MAG receives after the L2TP message of UE, removes L2TP encapsulation, takes Obtain the PPP NCP configuring request that UE sends.X-MAG, as the MAG of PMIPv6, sends PBU Message is to P-GW, request and the tunnel binding of P-GW.After follow-up PMIPv6 tunnel has been set up, X-MAG needs set up L2TP Tunnel, PPP session and the corresponding relation in PMIPv6 tunnel and store.
After step 1808:P-GW receives PBU message, create banding cache entrance (BCE, Binding Cache Entry), the IP address ip 2 and for UE distribution 3GPP core net distributed;
Here, how P-GW sets up IP-CAN session with PCRF is prior art;Wherein, PCRF exists Distinguish v/hPCRF under roaming scence, under non-roaming scene, there is not vPCRF.
Step 1809:P-GW is sent to 3GPP HSS/AAA by diameter protocol (Diameter) signaling APN/P-GW mark is right, stores the mark of this P-GW.
Step 1810:P-GW responds PBA message to X-MAG, and carries 3GPP in this PBA message Core net is the IP address ip 2 of UE distribution.
Step 1811:X-MAG and UE complete PPP NCP to be consulted, will by PPP NCP configuration response The IP address ip 2 distributing to UE is sent to UE.X-MAG is by PPP NCP configuration response message encapsulation In L2TP Tunnel, it is sent to UE.UE receives after the L2TP message of X-MAG, removes L2TP Encapsulation, obtains PPP message therein, and does corresponding process according to message content therein.
Step 1812: triggering based on step 1808 operation, PCRF initiates strategy session to BPCF and sets up Request, Establishment strategy session;
Here, the strategy session set up is similar to the gateway control session defined in 3GPP, by this meeting Words, BPCF obtains relevant QoS and charging policy from strategy universal control point PCRF;
Wherein, under roaming scence, can be through vPCRF between BPCF and hPCRF;Under non-roaming scene, There is not vPCRF.
Step 1813: complete the transmission of data service.
For uplink data messages, the IP address conduct that upstream data is first distributed by UE by 3GPP core net Internal layer source IP address, Correspondent Node IP address are packaged as purpose IP address, then carry out PPP and L2TP encapsulates, and is transmitted to X-MAG afterwards;The X-MAG upstream data bag from UE to receiving, Solution goes L2TP and PPP to encapsulate, and retains internal layer source IP address and purpose IP address, is encapsulated into PMIPv6 afterwards Tunnel is sent to P-GW;
For downlink data message, downlink data solution PMIPv6 is encapsulated by X-MAG, retains internal layer source IP Address and purpose IP address, after the most then entering the encapsulation of PPP and L2TP two-layer, be transmitted to UE;UE To the downlink data from X-MAG received, solution goes L2TP and PPP to encapsulate, and peels off internal layer IP address, Obtain payload.
Embodiment 12
Figure 19 is the UE fixing network insertion mobile network by route pattern in the embodiment of the present invention 12 Under the network architecture UE off-line/attachment removal realize schematic flow sheet, the network architecture being based on such as Fig. 3, figure Shown in 4.Concrete, UE of the present invention comprises the following steps from mobile network's off-line/attachment removal flow process:
Step 1901:UE is by fixing network insertion EPS core net, and sets up at least one PDN connection.
Step 1902:UE sends PPP session termination and asks, to X-MAG, to ask off-line/attachment removal/deletion PDN connects.PPP message, by match messages to the L2TP Tunnel set up for UE, is encapsulated in by UE In L2TP Tunnel, it is sent to X-MAG.
Here, described PPP session is LCP or NCP, corresponding, the request of PPP session termination is PPP LCP Terminate request or terminate request for PPP NCP;Typically, UE needs for some reason, may initiate Off-line/attachment removal or delete certain PDN connect operation.
Step 1903:X-MAG receives after the L2TP message of UE, removes L2TP encapsulation, takes Obtain the PPP session termination request that UE sends.X-MAG, as the MAG of PMIPv6, sends PBU and disappears Breath is to P-GW, and carries vital stage zero setting instruction, and request releases tunnel binding with P-GW;
Here, if individually PDN connects deletion, can only release that PDN to be discharged and connect PMIPv6 tunnel;If off-line/attachment removal, then to remove each PMIPv6 tunnel respectively;Accordingly , after P-GW receives PBU message, the tunnel binding context with X-MAG can be deleted.
Step 1904:P-GW removes the IP-CAN session between PCRF.
Step 1905:P-GW sends APN/P-GW by Diameter signaling to 3GPP HSS/AAA It is right to identify, and notice 3GPP HSS/AAA deletes the mark of P-GW.
Step 1906:P-GW responds PBA message to X-MAG.
Step 1907:X-MAG returns PPP to UE and terminates response, notifies UE off-line/attachment removal/PDN Connect deletion to complete.PPP is terminated response message and is encapsulated in L2TP Tunnel by X-MAG, is sent to UE. UE receives after the L2TP message of X-MAG, removes L2TP encapsulation, obtains PPP message therein, And do corresponding process according to message content therein.
Here, described PPP terminates response can be that PPP LCP terminates response or PPP NCP terminates answering Answer;Described notice UE off-line/attachment removal/PDN connects deletion and includes: notice UE PPP session teardown, PDN Connect and delete.
The release of L2TP Tunnel is initiated between step 1908:UE and X-MAG.
Step 1909: if attachment removal/off-line operation, fixing network has also needed local Connection Release, basis Ground resource release;Connecting if only deleting certain PDN, the most only discharging the resource of correspondence, other PDN The resource connected continues to retain.
Embodiment 13
Figure 20 is the UE fixing network insertion mobile network by route pattern in the embodiment of the present invention 13 Under the network architecture, UE realizes schematic flow sheet from 3GPP IP access network to what fixing network switched, is based on The network architecture as shown in Figure 3, Figure 4.Described handoff procedure refers to that UE is by fixing network insertion/attached After EPS core net, need the most again to switch to fixing network.Concrete, the present invention UE comprises the following steps from 3GPP access network to the switching flow of fixing network:
Step 2001:UE completes trusted 3GPP by fixing network and accesses.
The certainly directional at-tachment network switching for some reason of step 2002:UE.
Here, described reason can be 3GPP wireless access signal variation etc..
Step 2003: with step 1801-1812.
Step 2004:P-GW initiates 3GPP access network resource deexcitation flow process.
Here, because UE has been switched to fixing network insertion, therefore, the related resource of 3GPP access network Capital deexcitation or deletion, this step is prior art.
Embodiment 14
Figure 21 is the UE fixing network insertion mobile network by route pattern in the embodiment of the present invention 14 That sets up additional PDN connection establishment under the network architecture realizes schematic flow sheet, the network architecture being based on such as figure 3, shown in Fig. 4.Owing to, in EPS, UE can visit multiple PDN simultaneously, set up multiple PDN even Connect, obtain multiple/to IPv4/IPv6 address, what this flow process described be exactly after UE attachment, sets up attached Add the operating process that PDN connects.Concrete, the present invention sets up the flow process of additional PDN connection and includes following Step:
Step 2101:UE, by fixing network insertion/be attached to EPS core net, concrete accesses/attachment Flow process is as described in Figure 18.
When step 2102:UE needs additional PDN to connect, send PPP NCP configuring request to X-MAG, PPP NCP negotiation is carried out with X-MAG.UE by match messages to the L2TP Tunnel set up for UE, And PPP signaling is encapsulated in L2TP signaling and is sent to X-MAG.
Here, the parameters such as mobile network ID, APN of at least carrying UE in described configuring request;UE sends To in the PPP NCP configuring request of X-MAG, can carry or not carry UE at fixing Network Capture IP address ip 1.
Step 2103:X-MAG receives after the L2TP message of BNG/BRAS, removes L2TP Encapsulation, obtains the PPP NCP configuring request that UE sends.X-MAG, as the MAG of PMIPv6, sends out Send PBU message to P-GW, request and the tunnel binding of P-GW.Treat that follow-up PMIPv6 tunnel has been set up Cheng Hou, X-MAG need set up L2TP Tunnel, PPP session and the corresponding relation in PMIPv6 tunnel and deposit Storage.
After step 2104:P-GW receives PBU message, create BCE, and distribute 3GPP core for UE The IP address ip 2 of net distribution;
Here, how P-GW sets up IP-CAN session with PCRF is prior art;Wherein, PCRF exists Distinguish v/hPCRF under roaming scence, under non-roaming scene, there is not vPCRF.
Step 2105:P-GW sends APN/P-GW by Diameter signaling to 3GPP HSS/AAA It is right to identify, and stores the mark of this P-GW.
Step 2106:P-GW responds PBA message to X-MAG, and carries 3GPP in this PBA message Core net is the IP address ip 2 of UE distribution.
Step 2107:X-MAG and UE complete PPP NCP to be consulted, will by PPP NCP configuration response The IP address ip 2 distributing to UE is sent to UE.X-MAG is by PPP NCP configuration response message encapsulation In L2TP Tunnel, it is sent to UE.UE receives after the L2TP message of X-MAG, removes L2TP Encapsulation, obtains PPP message therein, and does corresponding process according to message content therein.
Step 2108: if the PCC strategy in PCRF has change, then PCRF can be by setting up The PCC strategy of renewal is sent to BPCF, BPCF by the strategy session between BPCF and PCRF also can root According to practical situation to BNG/BRAS more New Policy, BNG/BRAS can be corresponding according to the strategy execution updated Operation.
It should be noted that for the fixing network of route pattern, Fig. 7 is preferably solution, except this Outside, there is also other solutions, such as Figure 22, Figure 23 a, Figure 23 b, Figure 24 and provide other Solution.
As shown in figure 22, its basic thought is, supports to use GTP agreement in terminal and X-MAG Realize controlling between UE and X-MAG the packet route of the mutual of signaling and data.X-MAG in this method, The chain of command protocol stack of UE and related network elements thereof is arranged as shown in figure 22.Concrete:
As shown in figure 22, the chain of command protocol stack of X-MAG at least includes L1/L2 (Layer 1/Layer 2) Layer, IP layer, L1/L2 layer is bottom bearing bed;On IP layer, connect the side of P-GW, be carried on On IP layer is UDP layer and PMIPv6 layer, say, that at IP between X-MAG and P-GW PMIPv6 is passed through mutual on Ceng;Connect UE side, be carried on IP layer be UDP layer, GTP layer.Corresponding, in the protocol stack of UE side, UDP layer, GTP layer are set on IP layer, Control the mutual of signaling realizing PPP between UE and X-MAG.
Transmitting for chain of command, UE sends GTP-C signaling to X-MAG;X-MAG receives from UE GTP signaling after, carry out operating (e.g., authentication, set up PMIPv6 binding etc.) according to its content.When (e.g., the flow process such as authorizing procedure, PMIPv6 binding flow process needs when X-MAG needs to send chain of command signaling When carrying out Signalling exchange with UE), X-MAG sends GTP-C signaling to UE;UE receive from After the GTP signaling of X-MAG, the GTP signaling according to receiving operates accordingly.
Transmitting for user face, in UE side, upstream data wraps in the encapsulation 3GPP core net distribution of IP layer Behind IP address, after GTP layer encapsulates, it is sent to X-MAG;Up to from UE of X-MAG Packet, carries out decapsulation process, and solution goes GTP to encapsulate, and retains internal layer IP address, is encapsulated into tunnel afterwards Road is issued P-GW.For the downlink data in the tunnel from P-GW, X-MAG solution goes tunnel encapsulation, Retain internal layer IP address, after then entering the encapsulation of GTP layer, be sent to UE;UE receive from X-MAG Downlink data after, carry out decapsulation process, solution goes GTP to encapsulate, and is handed down to the IP layer of UE side afterwards, Carry out subsequent treatment.
As shown in fig. 23 a, its basic thought is, in terminal and X-MAG support use Diameter, EAP protocol realizes controlling the mutual of signaling between UE and X-MAG.X-MAG, UE in this method And the chain of command protocol stack of related network elements is arranged as shown in fig. 23 a.Concrete:
As shown in fig. 23 a, the chain of command protocol stack of X-MAG at least includes L1/L2 (Layer 1/Layer 2) Layer, IP layer, L1/L2 layer is bottom bearing bed;On IP layer, connect the side of P-GW, be carried on On IP layer is UDP layer and PMIPv6 layer, say, that at IP between X-MAG and P-GW PMIPv6 is passed through mutual on Ceng;Connect UE side, be carried on IP layer be UDP layer, Diameter layer, EAP layer.Corresponding, in the protocol stack of UE side, on IP layer, UDP is set Layer, Diameter layer, EAP layer, control the mutual of signaling realizing PPP between UE and X-MAG.
Transmitting for chain of command, the access authentication of UE is completed by EAP protocol, and controls for other Plane signaling is then completed by Diameter.
In this method, the user face protocol stack of X-MAG, UE and related network elements thereof is arranged as shown in fig. 23b. In this scenario, gre tunneling is established between UE and X-MAG to carry out the transmission of packet.
Transmitting for user face, in UE side, upstream data wraps in the encapsulation 3GPP core net distribution of IP layer Behind IP address, after GRE layer encapsulates, it is sent to X-MAG;Up to from UE of X-MAG Packet, carries out decapsulation process, and solution goes GRE to encapsulate, and retains internal layer IP address, is encapsulated into tunnel afterwards Road is issued P-GW.For the downlink data in the tunnel from P-GW, X-MAG solution goes tunnel encapsulation, Retain internal layer IP address, after then entering the encapsulation of GRE layer, be sent to UE;UE receive from X-MAG Downlink data after, carry out decapsulation process, solution goes GRE to encapsulate, and is handed down to the IP layer of UE side afterwards, Carry out subsequent treatment.
As shown in figure 24, its basic thought is, supports to use Session Initiation Protocol real in terminal and X-MAG The packet route of the mutual of signaling and data is controlled between existing UE and X-MAG.X-MAG in this method, The chain of command protocol stack of UE and related network elements thereof is arranged as shown in figure 24.Concrete:
As shown in figure 22, the chain of command protocol stack of X-MAG at least includes L1/L2 (Layer 1/Layer 2) Layer, IP layer, L1/L2 layer is bottom bearing bed;On IP layer, connect the side of P-GW, be carried on On IP layer is UDP layer and PMIPv6 layer, say, that at IP between X-MAG and P-GW PMIPv6 is passed through mutual on Ceng;Connect UE side, be carried on IP layer be UDP layer, SIP layer.Corresponding, in the protocol stack of UE side, UDP layer, SIP layer are set on IP layer, with Realize the mutual of control signaling between UE and X-MAG.
Chain of command is transmitted, between UE and X-MAG, uses SIP to complete the related streams such as authentication, access Journey.
Transmitting for user face, in UE side, upstream data wraps in the encapsulation 3GPP core net distribution of IP layer Behind IP address, after GRE layer encapsulates, it is sent to X-MAG;Up to from UE of X-MAG Packet, carries out decapsulation process, and solution goes GRE to encapsulate, and retains internal layer IP address, is encapsulated into tunnel afterwards Road is issued P-GW.For the downlink data in the tunnel from P-GW, X-MAG solution goes tunnel encapsulation, Retain internal layer IP address, after then entering the encapsulation of GRE layer, be sent to UE;UE receive from X-MAG Downlink data after, carry out decapsulation process, solution goes GRE to encapsulate, and is handed down to the IP layer of UE side afterwards, Carry out subsequent treatment.
All methods in the present invention, retouch as a example by all using PMIPv6 between X-MAG and P-GW State, GTP tunnel, now, its flow process and use PMIPv6 between X-MAG and P-GW, can also be used Similar, simply use GTP message to realize corresponding function.
The above, only presently preferred embodiments of the present invention, it is not intended to limit the protection model of the present invention Enclose.

Claims (18)

1. a converging fixed network and the system of mobile network, it is characterised in that this system includes: fixing Network, mobile network, mobile anchor point gateway X-MAG and UE;Wherein,
Described X-MAG is connected to the wideband network gateway/Broadband Remote Access Server of fixing network Between the grouped data network gateway P-GW of BNG/BRAS and mobile network, the control of described X-MAG Face protocol stack and user face protocol stack at least include L1/L2 layer, IP layer, and L1/L2 layer is bottom bearing bed, Described X-MAG is for receiving from the signaling of BNG/BRAS, by control from UE in this signaling Plane signaling takes out, and when X-MAG needs to send chain of command signaling, chain of command signaling is encapsulated in by X-MAG In tunnel, and it is sent to BNG/BRAS by correct tunnel;Described BNG/BRAS receives from described After the signaling of X-MAG, take out chain of command signaling therein, and be transmitted to UE;
Arranging Ya interface between described UE and described BNG/BRAS, described BNG/BRAS is with described Yb interface is set between X-MAG.
System the most according to claim 1, it is characterised in that
The chain of command protocol stack of described X-MAG at least includes L1/L2 layer, IP layer, and L1/L2 layer is bottom Bearing bed;On IP layer, connect P-GW side, be carried on IP layer be UDP layer and PMIPv6 layer;Connecting the side of BNG/BRAS, being carried on IP layer is UDP layer, Yb control Face protocol layer;Accordingly, in the protocol stack on the Yb interface of described BNG/BRAS, arrange on IP layer UDP layer, Yb chain of command protocol layer;In the chain of command protocol stack of the Ya interface of described UE, On Ethernet/802.11 serial protocols layer, directly carrying Ya chain of command agreement;Accordingly, described In chain of command protocol stack on the Ya interface of BNG/BRAS, on Ethernet layer, directly carrying Ya control Face processed agreement;The chain of command protocol stack of described P-GW is connected the control of the side of P-GW with described X-MAG Face processed protocol stack is identical.
System the most according to claim 1, it is characterised in that described system also includes:
When UE needs to send chain of command signaling, described UE sends chain of command signaling to BNG/BRAS;Institute State BNG/BRAS and receive after the chain of command signaling of UE, create for user or find correct tunnel, And be responsible for being encapsulated in tunnel chain of command signaling, it is transmitted to X-MAG.
System the most according to claim 1, it is characterised in that
The user face protocol stack of described X-MAG at least includes L1/L2 layer, IP layer, and L1/L2 layer is bottom Bearing bed;On IP layer, connect P-GW side, be carried on IP layer be UDP layer and PMIPv6 layer;Connecting the side of BNG/BRAS, being carried on IP layer is UDP layer, Yb user Face protocol layer;Accordingly, in the user face protocol stack on the Yb interface of described BNG/BRAS, IP layer it On UDP layer, Yb user plane protocol layer are set;In the user face protocol stack of the Ya interface of described UE, Ya user plane protocol layer is carried, on described Ya user plane protocol layer on Ethernet/802.11 serial protocols layer Carrying IP layer;Accordingly, in the user face protocol stack on the Ya interface of described BNG/BRAS, at Ethernet On layer, directly carrying Ya user plane protocol;The chain of command protocol stack of described P-GW is at described X-MAG The superiors of the user face protocol stack connecting the side of P-GW carry IP layer again.
System the most according to claim 1, it is characterised in that described system also includes:
When UE needs to send user face data, upstream data wraps in the encapsulation 3GPP core net distribution of IP layer IP address, then after Ya interface user plane protocol layer encapsulates, it is transmitted to BNG/BRAS;By described BNG/BRAS is transferred to X-MAG after carrying out Yb interface user plane protocol encapsulation;Described X-MAG pair Described upstream data bag carries out decapsulation process, and solution removes the encapsulation of Yb interface user plane protocol and Ya Interface User Face protocol encapsulation, retains internal layer IP address, is encapsulated into afterwards in tunnel and issues P-GW;
X-MAG needs to send user face data, when i.e. receiving from the downlink data in the tunnel of P-GW, For described downlink data, X-MAG solution goes tunnel encapsulation, retains internal layer IP address, is then passed through Yb After interface user plane protocol encapsulation and Ya interface user plane protocol encapsulate, it is transferred to BNG/BRAS;Described After BNG/BRAS solution goes the encapsulation of Yb interface user plane protocol, packet is transmitted to UE;Described UE receives After described downlink data, carrying out decapsulation process, solution goes Ya interface user plane protocol to encapsulate, and issues afterwards To the IP layer of UE side, carry out subsequent treatment.
6. according to the system described in any one of claim 1 to 5, it is characterised in that described fixing network is The fixing network of bridge mode.
7. a converging fixed network and the method for mobile network, it is characterised in that the method includes: X-MAG Receive from the signaling of BNG/BRAS, chain of command signaling from UE in this signaling is taken out, X-MAG When needing to send chain of command signaling, chain of command signaling is encapsulated in tunnel by X-MAG, and by correct Tunnel is sent to BNG/BRAS;Described BNG/BRAS receives after the signaling of described X-MAG, Taking out chain of command signaling therein, and be transmitted to UE, described X-MAG is connected to fixing network Between BNG/BRAS and the P-GW of mobile network, the chain of command protocol stack of described X-MAG at least includes L1/L2 layer, IP layer, L1/L2 layer is bottom bearing bed;Between UE and described BNG/BRAS, Ya is set Interface, arranges Yb interface between described BNG/BRAS and described X-MAG.
Method the most according to claim 7, it is characterised in that the chain of command agreement of described X-MAG Stack at least includes L1/L2 layer, IP layer, and L1/L2 layer is bottom bearing bed;On IP layer, connect P-GW Side, being carried on IP layer is UDP layer and PMIPv6 layer;Connect the side of BNG/BRAS, Being carried on IP layer is UDP layer, Yb chain of command protocol layer;Accordingly, described BNG/BRAS Yb interface on chain of command protocol stack in, UDP layer, Yb chain of command protocol layer are set on IP layer; In the chain of command protocol stack of the Ya interface of described UE, on Ethernet/802.11 serial protocols layer, directly Carrying Ya chain of command agreement;Accordingly, the chain of command protocol stack on the Ya interface of described BNG/BRAS In, on Ethernet layer, directly carrying Ya chain of command agreement;The chain of command protocol stack of described P-GW with The chain of command protocol stack of the side that described X-MAG connects P-GW is identical.
Method the most according to claim 7, it is characterised in that described method also includes:
When UE needs to send chain of command signaling, described UE sends chain of command signaling to BNG/BRAS;Institute State BNG/BRAS and receive after the chain of command signaling of UE, create for user or find correct tunnel, And be responsible for being encapsulated in tunnel chain of command signaling, it is transmitted to X-MAG.
Method the most according to claim 7, it is characterised in that the user face association of described X-MAG View stack at least includes L1/L2 layer, IP layer, and L1/L2 layer is bottom bearing bed;On IP layer, connect P-GW Side, being carried on IP layer is UDP layer and PMIPv6 layer;Connect the side of BNG/BRAS, Being carried on IP layer is UDP layer, Yb user plane protocol layer;Accordingly, described BNG/BRAS Yb interface on user face protocol stack in, UDP layer, Yb user plane protocol layer are set on IP layer; In the user face protocol stack of the Ya interface of described UE, Ethernet/802.11 serial protocols layer carries Ya user plane protocol layer, described Ya user plane protocol layer carries IP layer;Accordingly, described BNG/BRAS Ya interface on user face protocol stack in, on Ethernet layer, directly carrying Ya user plane protocol; The user face protocol stack of described P-GW is the user plane protocol of the side at described X-MAG connection P-GW The superiors of stack carry IP layer again.
11. methods according to claim 7, it is characterised in that described method also includes:
When UE needs to send user face data, upstream data wraps in the encapsulation 3GPP core net distribution of IP layer IP address, then after Ya interface user plane protocol layer encapsulates, it is transmitted to BNG/BRAS;By described BNG/BRAS is transferred to X-MAG after carrying out Yb interface user plane protocol encapsulation;Described X-MAG pair Described upstream data bag carries out decapsulation process, and solution removes the encapsulation of Yb interface user plane protocol and Ya Interface User Face protocol encapsulation, retains internal layer IP address, is encapsulated into afterwards in tunnel and issues P-GW;
X-MAG needs to send user face data, when i.e. receiving from the downlink data in the tunnel of P-GW, For described downlink data, X-MAG solution goes tunnel encapsulation, retains internal layer IP address, is then passed through Yb After interface user plane protocol encapsulation and Ya interface user plane protocol encapsulate, it is transferred to BNG/BRAS;Described After BNG/BRAS solution goes the encapsulation of Yb interface user plane protocol, packet is transmitted to UE;Described UE receives After described downlink data, carrying out decapsulation process, solution goes Ya interface user plane protocol to encapsulate, and issues afterwards To the IP layer of UE side, carry out subsequent treatment.
12. according to the method described in any one of claim 7 to 11, it is characterised in that described fixing network Fixing network for bridge mode.
13. 1 kinds of converging fixed networks and the method for mobile network, it is characterised in that the method includes: X-MAG receives from the signaling of BNG/BRAS, chain of command signaling from UE in this signaling is taken out, When X-MAG needs to send chain of command signaling, chain of command signaling is encapsulated in tunnel, and leads to by X-MAG Cross correct tunnel and be sent to BNG/BRAS;Described BNG/BRAS receives from described X-MAG's After signaling, take out chain of command signaling therein, and be transmitted to UE, the chain of command protocol stack of described X-MAG At least including L1/L2 layer, IP layer, L1/L2 layer is bottom bearing bed;Described X-MAG is connected to fix Between the BNG/BRAS and the P-GW of mobile network of network, described UE and described X-MAG supports L2TP agreement is used to carry PPP signaling.
14. methods according to claim 13, it is characterised in that the chain of command association of described X-MAG View stack at least includes L1/L2 layer, IP layer, and L1/L2 layer is bottom bearing bed;On IP layer, connect P-GW Side, being carried on IP layer is UDP layer and PMIPv6 layer;Connect the side of UE, be carried on On IP layer is UDP layer, L2TP layer, PPP layer;Corresponding, in the protocol stack of UE, IP UDP layer, L2TP layer and PPP layer are set on Ceng, to realize the PPP control between UE and X-MAG Signaling processed mutual.
15. methods according to claim 13, it is characterised in that described method also includes:
When UE needs to send chain of command signaling, described UE creates or finds correct L2TP Tunnel, and will PPP signaling is encapsulated in L2TP signaling and is sent to X-MAG;Described X-MAG receives from described UE L2TP signaling after, the PPP signaling in this signaling is taken out, and operates accordingly according to its content;
When X-MAG needs to send chain of command signaling, PPP signaling is encapsulated in L2TP letter by described X-MAG In order, and it is sent to UE by correct L2TP Tunnel;The L2TP that UE receives from X-MAG believes After order, need to be taken out PPP signaling, and operate accordingly according to the PPP signaling received.
16. methods according to claim 13, it is characterised in that the user face association of described X-MAG View stack at least includes L1/L2 layer, IP layer, and L1/L2 layer is bottom bearing bed;On IP layer, connect P-GW Side, being carried on IP layer is UDP layer and PMIPv6 layer;Connect the side of UE, be carried on On IP layer is that UDP layer, L2TP layer and PPP assist layer;In the user face protocol stack of UE, IP layer On UDP layer, L2TP layer and ppp protocol layer are set, on PPP layer carry IP layer;Described P-GW User face protocol stack be the superiors of user face protocol stack of side connecting P-GW at described X-MAG Carry IP layer again.
17. methods according to claim 13, it is characterised in that described method also includes:
When UE needs to send user face data, upstream data wraps in the encapsulation 3GPP core net distribution of IP layer Behind IP address, after PPP layer and L2TP layer two-layer encapsulate, it is sent to X-MAG;X-MAG is to institute Stating upstream data bag and carry out decapsulation process, solution goes L2TP and PPP to encapsulate, and retains internal layer IP address, it Post package enters issues P-GW in tunnel;
X-MAG needs to send user face data, when i.e. receiving from the downlink data in the tunnel of P-GW, For described downlink data, X-MAG solution goes tunnel encapsulation, retains internal layer IP address, then entered PPP After encapsulating with L2TP two-layer, it is sent to UE;After UE receives described downlink data, carry out decapsulation process, Solution goes L2TP, PPP to encapsulate, and is handed down to the IP layer of UE side afterwards, carries out subsequent treatment.
18. according to the method described in any one of claim 13 to 17, it is characterised in that described fixing net Network is the fixing network of route pattern.
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