CN102711218A - Access network element, access network system and access method - Google Patents

Abstract

The invention discloses an access network element, an access network system and an access method and aims to solve the problems of complicated system architecture of a long-term evolved (LTE) home NodeB, high overhead and long delay time. The access network element has integrated functions of a serving gateway and a packet data gateway or integrated functions of the serving gateway, the packet data gateway and a mobility management entity, and an interactive interface between the integrated access network element and a core network, an interactive interface between the access network elements and an interactive flow are provided. By adoption of the technical scheme provided by the invention, the system architecture of an LTE home access network can be simplified, overhead is reduced, and delay time is shortened.

Description

Access network elements, access network system and cut-in method

Technical field

The present invention relates to wireless communication technology field, relate in particular to access network elements, access network system and cut-in method.

Background technology

The extensive use of wireless communication technology has brought the change of people's daily life styles and has been the raising service of quality of life continuously.Representative wireless communication technology comprises by 3GPP (3 at present ^RdGeneration Partnership Project) normal structure is formulated the GSM/UMTS/LTE standard of perhaps safeguarding, by 3GPP2 (3 ^RdGeneration Partnership Project2) the CDMA-2000 standard and the CDMA IS-95 of predecessor thereof of normal structure formulation; By 802.16e and 802.16m standard (these two standards are also referred to as the Wimax air interface standard) that IEEE 802.16 working groups formulate, 802.11 series standards (or WIFI standard) by IEEE 802.11 working groups formulate comprise 802.11a; 802.11b; 802.11g, 802.11n, 802.11ac.

In above these representative wireless communication technologys; The standard of 3GPP and 3GPP2 is mainly formulated for wireless wide area network (Wireless Wide Area Network); Thereby also be considered to the wireless wide area network communication technology; IEEE 802.16 standards (or Wimax standard) are mainly formulated for wireless MAN (WirelessMetropolitan Area Network), thereby also are considered to the wireless MAN communication technology; And IEEE 802.11 series standards (or WIFI standard) are mainly formulated for WLAN (Wireless Local AreaNetwork), thereby also are considered to the wireless LAN communication technology.

Different wireless communication technologys is because of the difference of its use scene that is directed against, and adopted various network framework system architecture in other words.The system architecture of the LTE standard that 3GPP formulates be called evolved packet system (Evolved Packet System, EPS) be by the universal land radio access web of evolution (EvolvedUniversal Terrestrial Radio Access Network, E-UTRAN) and evolution block core net (Evolved Packet Core; EPC) form, wherein the E-UTRAN framework is seen accompanying drawing 1, in this framework; Base station (E-UTRAN NodeB; ENB) be that (User Equipment UE) provides the network equipment of wireless access, connects through X2 interface between the base station for subscriber equipment; And base station and mobile management entity (Mobility Management Entity; MME) or gateway (Serving Gateway S-GW), connects through the S1 interface; Wherein the interface between eNB and MME is called S1-MME or S1-C interface, and the interface between eNB and S-GW is called S1-U interface.MME and S-GW belong to core net (EPC) node.The LTE standard also can be applied in the WLAN and (for example be used for family, enterprise network or public scenes such as focus covering), and at this moment the LTE standard pin is optimized above framework environment for use, the framework after the optimization such as Fig. 2.

In the framework of Fig. 2, and Home eNodeB (Home eNB, HeNB) function and eNB are similar; But Home eNodeB increased with itself and (collocated) local gateway of putting (Local Gateway, L-GW) (local gateway has grouped data network gateway (Packet Data Network Gateway, partial function P-GW)) to function; The increase of local gateway mainly is in order to realize that local IP inserts (Local IP Access; LIPA) function when the user uses the Internet service, can directly be passed through local gateway and the Internet interaction data like this; And needn't pass through S-GW and the P-GW that is arranged in EPC, thereby reduce the load of core net.And use the S5 interface between L-GW that HeNB stands altogether and the S-GW.In addition, (one of its effect is a relaying S1 signaling to femto gateway for HeNB GW, HeGW) optional being deployed between HeNB and the MME/S-GW.

Fig. 3 also is the system architecture diagram with LTE Home eNodeB of local IP access function, this figure in two new network elements are arranged, promptly security gateway (Secure Gateway, SeGW) with the Home eNodeB management system (HeNB Management System, HeMS).The function of security gateway is being connected between femto gateway, core network element and the Home eNodeB management system in Home eNodeB and the operator environment in the user environment safeguard protection to be provided for being in, and the Home eNodeB management system has some functions of Home eNodeB being carried out management maintenance.Interface between Home eNodeB management system and security gateway and other network element is not in 3GPP standard formulation scope.

The Home eNodeB framework of LTE standard mainly is on the basis of LTE E-UTRAN basic framework, to develop; Therefore, though it also is to family, enterprise's this type radio local network environment, the complexity of its framework is considerably beyond mainly being to WLAN (Wirless Local Access Network; WLAN) wlan standard (or being called the WIFI standard) of design; Wlan standard has two kinds of frameworks, a kind of framework mainly be by for the terminal in other words mobile radio station (Mobile Station MS) provides access point (the Access Point of access service; AP) form; And another kind of framework is outside AP, to have increased the access control node (Access Controller, AC), an AC can manage a plurality of AP.

Too complicated LTE Home eNodeB framework has brought certain difficulty to its deployment and application, and becomes the deficiency that it is competed with WIFI.For example; When internet usage under the enterprise application environment is served; The signaling of WIFI and data owner will transmit between AC, AP and MS three; And the signaling of LTE and data need be transmitted between UE, HeNB, HeGW, MME, S-GW, L-GW, and so not only complexity is high, and causes bigger expense and time delay.

Summary of the invention

In view of this, main purpose of the present invention is to provide a kind of access network elements, access network system and cut-in method, is used to solve LTE family base station system framework too complicacy and expense and the excessive problem of time delay.

For achieving the above object, technical scheme of the present invention is achieved in that

A kind of access network elements comprises in the said access network elements:

The gateway function module is used for gateway function is fused to said access network elements;

The packet data gateway functional module is used for the packet data gateway function is fused to said access network elements.

Further, said packet data gateway function comprises and the Internet interaction data function that user terminal is through said access network elements and the Internet interaction data.

Further, said gateway function module is used to carry out one of following function at least:

During switching as the mobility anchor point;

Downstream packets buffer memory and the service request flow process of initiating network-triggered;

Bag route and forwarding.

Further; Said packet data gateway function comprises the Gx interface between support and the "Policy and Charging Rules Function PCRF, carries out the mutual of strategy and charging regulation information through said Gx interface between said access network elements and the said "Policy and Charging Rules Function PCRF.

Further, said access network elements also comprises:

The mobile management entity functional module is used for the mobile management entity function is fused to said access network elements; Said mobile management entity function comprises termination Non-Access Stratum NAS signaling capability, said access network elements termination Non-Access Stratum NAS signaling; Said mobile management entity function also comprises the S6a interface function between support and the home subscriber server HSS, carries out the mutual of CAMEL-Subscription-Information through the S6a interface between said access network elements and the HSS.

Further, being connected between said access network elements and the core net through security gateway, said security gateway be said access network elements with core net between be connected safeguard protection be provided.

Further, said access network elements receives mount message and/or configuration information from management system in installation and/or layoutprocedure.

Further; Said access network elements is a femto gateway; Said femto gateway connects one or more Home eNodeB, and said gateway function comprises the S1 interface between support and Home eNodeB, passes through the S1 interactive interfacing between said femto gateway and the Home eNodeB.

Further, said access network elements is a Home eNodeB.

Based on the embodiment of the invention, a kind of access network system is provided, this access network system comprises:

Home eNodeB is used to user terminal Radio Resource is provided, and links to each other with femto gateway through the S1 interface; Said Home eNodeB is also supported X2 interface, is used for mutual between the Home eNodeB;

Femto gateway; Be used to connect one or more Home eNodeB; Said femto gateway converged services gateway function and packet data gateway function; Wherein said packet data gateway function comprises and the Internet interaction data function that said gateway function comprises when supporting to switch as the mobility anchor point.

Further, said femto gateway also merges the mobile management entity function, and said mobile management entity function comprises termination Non-Access Stratum NAS signaling capability and comprises the S6a interface function between support and the home subscriber server HSS.

Further; Said packet data gateway function comprises the Gx interface between support and the "Policy and Charging Rules Function PCRF, carries out the mutual of strategy and charging regulation information through said Gx interface between said femto gateway and the said "Policy and Charging Rules Function PCRF.

Further, being connected between said femto gateway and the core net through security gateway, said security gateway be said femto gateway with core net between be connected safeguard protection be provided.

Based on the embodiment of the invention, another kind of access network system is provided, this access network system comprises:

Home eNodeB, this Home eNodeB provides the Radio Resource except that being used to user terminal, and this Home eNodeB has also merged gateway function and packet data gateway function, and wherein said packet data gateway function comprises and the Internet interaction data function; Said gateway function comprises when supporting to switch as the mobility anchor point; Said Home eNodeB is also supported X2 interface, is used for mutual between the Home eNodeB.

Further, said Home eNodeB also merges the mobile management entity function, and said mobile management entity function comprises termination Non-Access Stratum NAS signaling capability and comprises the S6a interface function between support and the home subscriber server HSS.

Further; Said packet data gateway function comprises the Gx interface between support and the "Policy and Charging Rules Function PCRF, carries out the mutual of strategy and charging regulation information through said Gx interface between said Home eNodeB and the said "Policy and Charging Rules Function PCRF.

Further, being connected between said Home eNodeB and the core net through security gateway, said security gateway be said Home eNodeB with core net between be connected safeguard protection be provided.

Based on the embodiment of the invention, a kind of cut-in method is provided, this method is applied to the access network elements of converged services gateway function and packet data gateway function, and this method comprises:

This message of transparent transmission was given mobile management entity MME after access network elements received the attach request at terminal, and UE, mobile management entity MME and home subscriber server HSS are mutual then accomplishes to the authentication at terminal and position new technological process more;

Carry out between the mobile management entity MME of said access network elements and core net alternately, accomplish the establishment conversation procedure of initiating by the mobile management entity MME of core net;

Carry out alternately between the mobile management entity MME of said access network elements and core net, accomplish the initial context of initiating and set up process, and completion links the reprovision process with RRC between the terminal by the mobile management entity MME of core net;

After accomplishing attachment flow, carry out between access network elements and MME and revise load bearing process.

Further, said access network elements is a Home eNodeB; Said establishment conversation procedure is specially:

The mobile management entity MME of core net is sent to said Home eNodeB and is created conversation request, and said Home eNodeB is user's distributing IP address, confirms bearer quality of service QoS, sends to the mobile management entity MME of core net then and creates conversational response;

Said modification load bearing process is specially:

The mobile management entity MME of core net is sent the request of carrying of revising to said Home eNodeB, and the S1 user plane information of said Home eNodeB is sent to said Home eNodeB; Said Home eNodeB returns to revise and carries the mobile management entity MME that core net is given in response.

Further, said access network elements comprises Home eNodeB and femto gateway, and said femto gateway has merged gateway function and packet data gateway function, and said femto gateway connects one or more Home eNodeB;

Said establishment conversation procedure is specially:

The mobile management entity MME of core net is sent to said femto gateway and is created conversation request, and said femto gateway is user's distributing IP address, confirms bearer quality of service QoS, sends to the mobile management entity MME of core net then and creates conversational response;

Said modification load bearing process is specially:

The mobile management entity MME of core net is sent the request of carrying of revising to said femto gateway, and the S1 user plane information of said Home eNodeB is sent to said femto gateway; Said femto gateway returns to revise and carries the mobile management entity MME that core net is given in response.

Based on the embodiment of the invention, another kind of cut-in method is provided, this method is applied to the access network elements of converged services gateway function, packet data gateway function and mobile management entity function, and this method comprises:

Access network elements carries out the NAS authentication to the terminal after receiving the NAS message that comprises attach request of sending at the terminal;

Executing location is upgraded between said access network elements and the home subscriber server HSS, and obtains user data;

Said access network elements is carried out initial context and is set up process, and completion links the reprovision process with RRC between the terminal;

After said access network elements receiving terminal was accomplished message through adhering to of direct pass-along message transmission, said access network elements was carried out the bearing modification process.

Further; Said access network elements comprises Home eNodeB and femto gateway; Said femto gateway has merged gateway function, packet data gateway function and mobile management entity function, and said femto gateway connects one or more Home eNodeB;

Executing location is upgraded and is obtained after the user data between said femto gateway and the home subscriber server HSS; Accomplish between mobile management entity function that said femto gateway is embedded and the gateway function and create conversation procedure, and the packet data gateway function is terminal distribution IP address;

Said access network elements is carried out initial context and is set up process, and completion links the reprovision process with RRC between the terminal and specifically comprises:

Said femto gateway initiates to carry the initial context foundation request of the service quality QoS that distributes into the user to said Home eNodeB; Said Home eNodeB is initiated RRC link reprovision process to the terminal; Consult relevant wireless parameter with the terminal, set up the interface-free resources of carrying, after the terminal completion is carried and set up; Send RRC link reprovision to said Home eNodeB and accomplish message, said Home eNodeB sends initial context to said femto gateway and sets up response.

Further, said access network elements is a Home eNodeB, and said access network elements is carried out initial context and set up process, and completion links the reprovision process with RRC between the terminal and is specially:

Accomplish between mobile management entity function that said Home eNodeB is embedded and the gateway function and create conversation procedure, and the packet data gateway function is terminal distribution IP address;

After the inner completion of said Home eNodeB initial context is set up process; Initiate RRC link reprovision process to the terminal, consult relevant wireless parameter, set up the interface-free resources of carrying with the terminal; The terminal is accomplished and is carried after the foundation, sends RRC link reprovision to said Home eNodeB and accomplishes message.

The present invention has simplified the system architecture of LTE family access network through converged services gateway function, packet data gateway function and mobile management entity function in access network elements, has reduced expense and time delay.

Description of drawings

Fig. 1 is existing E-UTRAN basic system architecture figure;

The E-UTRAN system architecture of femto gateway that Fig. 2 has been existing deployment;

Fig. 3 is the family base station system logical architecture of the existing LIPA of support function;

The E-UTRAN family access network Organization Chart of the femto gateway of Fig. 4 has been the deployment that provides of the embodiment of the invention 1 band S-GW and P-GW function;

The access network system logical architecture figure of family of the femto gateway of Fig. 5 has been the deployment that provides of the embodiment of the invention 1 band S-GW and P-GW function;

The user face protocol stack (eating dishes without rice or wine) of family's access network system of the femto gateway of Fig. 6 has been the deployment that provides of the embodiment of the invention 1 band S-GW and P-GW function is schemed;

The chain of command protocol stack (eating dishes without rice or wine) of family's access network system of the femto gateway of Fig. 7 has been the deployment that provides of the embodiment of the invention 1 band S-GW and P-GW function is schemed;

The user face protocol stack (S1-U interface agreement) of family's access network system of the femto gateway of Fig. 8 has been the deployment that provides of the embodiment of the invention 1 band S-GW and P-GW function is schemed;

The chain of command protocol stack (S1-MME interface) of family's access network system of the femto gateway of Fig. 9 has been the deployment that provides of the embodiment of the invention 1 band S-GW and P-GW function is schemed;

The UE attachment flow figure of family's access network system of the femto gateway of Figure 10 has been the deployment that provides of the embodiment of the invention 1 band S-GW and P-GW function;

The E-UTRAN family access network Organization Chart of the Home eNodeB of Figure 11 has been the deployment that provides of the embodiment of the invention 2 band S-GW and P-GW function;

The access network system logical architecture figure of family of the Home eNodeB of Figure 12 has been the deployment that provides of the embodiment of the invention 2 band S-GW and P-GW function;

The chain of command protocol stack (eating dishes without rice or wine) of the E-UTRAN family access network of the Home eNodeB of Figure 13 has been the deployment that provides of the embodiment of the invention 2 band S-GW and P-GW function is schemed;

The chain of command protocol stack (S1-MME interface) of the E-UTRAN family access network of the Home eNodeB of Figure 14 has been the deployment that provides of the embodiment of the invention 2 band S-GW and P-GW function is schemed;

The UE attachment flow figure of family's access network system of the Home eNodeB of Figure 15 has been the deployment that provides of the embodiment of the invention 2 band S-GW and P-GW function;

The E-UTRAN family access network Organization Chart of the femto gateway of Figure 16 is the deployment that provides of the embodiment of the invention 3 band MME, S-GW and P-GW function;

The access network system logical architecture figure of family of the femto gateway of Figure 17 is the deployment that provides of the embodiment of the invention 3 band MME, S-GW and P-GW function;

Chain of command protocol stack (eating dishes without rice or wine) figure of the E-UTRAN family access network of the femto gateway of Figure 18 is the deployment that provides of the embodiment of the invention 3 band MME, S-GW and P-GW function;

Chain of command protocol stack (S1-MME interface) figure of the E-UTRAN family access network of the femto gateway of Figure 19 is the deployment that provides of the embodiment of the invention 3 band MME, S-GW and P-GW function;

The UE attachment flow figure of family's access network system of the femto gateway of Figure 20 is the deployment that provides of the embodiment of the invention 3 band MME, S-GW and P-GW function;

The E-UTRAN family access network Organization Chart of the Home eNodeB of Figure 21 is the deployment that provides of the embodiment of the invention 4 band MME, S-GW and P-GW function;

The access network system logical architecture figure of family of the Home eNodeB of Figure 22 is the deployment that provides of the embodiment of the invention 4 band MME, S-GW and P-GW function;

Chain of command protocol stack (eating dishes without rice or wine) figure of family's access network system of the Home eNodeB of Figure 23 is the deployment that provides of the embodiment of the invention 4 band MME, S-GW and P-GW function;

The UE attachment flow figure of family's access network system of the Home eNodeB of Figure 24 is the deployment that provides of the embodiment of the invention 4 band MME, S-GW and P-GW function.

Embodiment

Wireless LAN communication market is when advancing by leaps and bounds, and the different communication technologys that are directed against wireless LAN communication are also in continuous release.In these communication technologys, that popularize the most in the market is WIFI (also with the IEEE802.11 communication technology, perhaps the name of WLAN is known) standard technique, for example 802.11a/b/g/n.The 3GPP normal structure is in order to solve the market demand of urgent day by day indoor broadband access, and also having released with Home eNodeB (HNB or HeNB) is the indoor broadband access solution of key feature.Though have nothing in common with each other in the solution name that different normal structures proposes for their, they come down to close or are equal to, and for example the mobile radio station among the WIFI (MS) is suitable basically with the subscriber equipment (UE) of 3GPP definition; (HNB/HeNB system) is suitable basically for family base station system among Local Area Network among the WIFI, wireless lan (wlan) and the 3GPP; Name custom according to 3GPP also can be referred to as home network (home network) or family's access network (home access network); Access point among the WIFI (AP) is suitable basically with the Home eNodeB (HNB or HeNB) of 3GPP definition, and the access control node (AC) among the WIFI is suitable basically with the femto gateway of 3GPP definition.Said Home eNodeB or family (access) network or family base station system and unrestricted this system can only be used for family among the 3GPP; In fact it uses scene overlapping basically with the use scene of WIFI, has contained from family, enterprise to be deployed in interior multiple suitable scene to public.In the present invention, mentioned Home eNodeB (HeNB) and femto gateway (HeGW) are the names of having continued to use 3GPP, and they also can be called as LTE LANAP and LTE LANAC, and perhaps other has the identity function division but the different network element of title.Equally, family's access network and LTE LAN are equal in the present invention, and Home eNodeB management system (HeMS) also can be general network management system (OAM).

Said like background technology, the family base station system framework of LTE is complicated more than the framework of WLAN, has caused problems such as signaling is many, delay is big, cost is high, deployment is difficult, has brought a lot of difficulties for the deployment and the popularization of the Home eNodeB of LTE.For this reason; The present invention proposes a kind of new LTE family access network system framework (a kind of in other words new LTE LAN system architecture), can effectively reduce system complexity, reduce the signaling between network element; Reduce to postpone, be of value to the application and the popularization of LTE family base station system.

For making the object of the invention, technical scheme and advantage clearer, below lift embodiment and with reference to accompanying drawing, to further explain of the present invention.

Embodiment 1

In order to reduce the complexity of the LTE network architecture, increase its flexibility, a kind of effective way is exactly that function with a plurality of network elements merges, and the partial function of core net is transferred to Access Network accomplish.The function of core net EPC mainly comprises user's authentication, mobile management, data and signaling encryption etc., through these control, realizes management and control and accurate billing operation to the user.Concrete, above-mentioned EPC function mainly realizes that by entities such as MME, S-GW, P-GW, HSS in the prior art, the concrete function of these core network elements is explained as follows:

The function of mobile management entity (MME) comprising:

(1) based on the Business Processing of NAS signaling (signaling); (2) for the NAS signaling fail safe (encrypting and integrity protection) protection is provided; (3) accessibility of Idle attitude UE (comprise control and carry out the paging transmission); (4) tracking zone list (Tracking Area list) management; (5) packet data gateway and gateway are selected; (6) when switching needs change MME, the selection of MME; (7) when switching to 2G or 3G network, GPRS serving GPRS support node (Servicing GPRS Support Node, selection SGSN); (8) carry out roaming management; (9) user is carried out authentication, mandate; (10) the bearer management function comprises dedicated bearing foundation; (11) Lawful Interception; (12) transmit alarm information; (13) the accessibility function of UE; (14) S1 connection management; (15) security control; (16) user's switching controls under the MME etc.

The function of gateway (S-GW) comprising:

When (1) between the base station, switching, as the local mobile anchor point; (2) send one or more " end marks " (" end marker ") and give source base station; (3) when cross-mode (inter-RAT) switches, as the mobility anchor point; (4) under the ECM-Idle attitude, downstream packets buffer memory and the service request flow process of initiating network-triggered; (5) Lawful Interception; (6) bag route and forwarding; (7) up/downlink transfer layer bag mark; (8) keep accounts for chargeing between operator; (9) offline charging function;

The function of packet data gateway (P-GW) comprises that following function is partly or entirely:

(1) based on every user's packet filtering; (2) Lawful Interception; (3) up/downlink transfer layer bag mark; (4) keep accounts for chargeing between operator; (5) the up-downgoing operation layer charges; (6) offline charging function; (7) up-downgoing operation layer speed is carried out; (8) dynamic IP addressing is distributed (DHCP) function; (9) up-downgoing bearing binding; (10) up bearing binding checking; (11) every user/carrying book keeping operation;

HSS is the functional entity that has user signing contract information, and its logic function comprises:

(1) mobile management; (2) generate user security information; (3) user security support; (4) call/session is set up and is supported; (5) identification process; (6) insertion authority; (7) service authorization support; (8) applied business support;

(Policy and Charging Rules Function is that business data flow and IP bearing resource and policy, billing provide control as the decision point of strategy PCRF) for strategy and charging rule functions; PCRF selects and (Policy and Charging Enforcement Function PCEF) provides the suitable strategy and the decision-making of chargeing to strategy and charge execution function; PCEF provides control as the execution point of strategy for the strategy and the charging of IP bearing resource.

In the prior art, the interface between the network element that the present invention relates generally to comprises:

(1) S1-MME interface is chain of command protocol interface (between E-UTRAN and the MME);

(2) S1-U interface is the interface between E-UTRAN and the gateway, the path conversion when being mainly used in user plane tunnel (user plane tunnelling) and switching between the base station;

(3) X2 interface is the interface between the base station, in order to support switching and/or information transmission and/or the transfer of data between the base station;

(4) the S6a interface is used to enable between MME and HSS, transmit signatory and verify data, is linked into system to carry out the authenticated/authorized user;

(5) the Gx interface provides (service quality) strategy and charging regulation transmission of strategy and charge execution function PCEF from PCRF to the Packet Data Network Central Shanxi Plain;

(6) the S10 interface is the interface in order heavily to settle MME and MME to transmit to the information of MME between the MME;

(7) the S11 interface is the interface between MME and gateway;

(8) the SGi interface is the interface between packet data gateway (P-GW) and packet data network.Packet data network can be the outside public or privately owned packet data network of operator, perhaps inner Packet Data Network of operator, for example for provide IP multimedia service (IP Multimedia Service, IMS).

The deployment that Fig. 4 provides for the embodiment of the invention 1 family's access network system Organization Chart of femto gateway of band (partly or entirely) gateway S-GW function and (partly or entirely) packet data gateway P-GW function.

As shown in Figure 4, LTE family access network (HAN, or be called the LTE WLAN) form by one or more Home eNodeB of femto gateway and control thereof.Support the S1 interface between Home eNodeB (HeNB) and the femto gateway (HeGW), wherein chain of command supports that S1-C is a S1-MME interface, is used for the signaling of mutual chain of command, and user plane is supported S1-U interface, is used for interactive service data.Support X2 interface between the Home eNodeB, wherein chain of command is supported the X2-C interface, is used for mutual chain of command signaling, and user plane is supported the X2-U interface, is used for transmitting user data.

The access network system logical architecture figure of LTE family of the femto gateway of Fig. 5 has been the deployment that provides of the embodiment of the invention 1 band gateway function S-GW and packet data gateway P-GW function.

As shown in Figure 5, support the S1 interface between Home eNodeB (HeNB) and the femto gateway (HeGW), wherein chain of command supports that S1-C is a S1-MME interface, is used for the signaling of mutual chain of command, user plane is supported S1-U interface, is used for interactive service data.The S1-MME interface of mobile management entity (MME) network element of femto gateway (because it comprises gateway function) support and core net.In addition, the Gx interface between optional support of femto gateway (because it comprises the packet data gateway function) and the "Policy and Charging Rules Function PCRF.Some interface does not draw in the drawings, for example the SGi interface between optional support of femto gateway (because it comprises the packet data gateway function) and the IP of the operator service network element.

As shown in Figure 5; Femto gateway is the same with Home eNodeB; All be arranged in enterprise network or local area network (LAN); Connection between femto gateway and the core network element (for example mobile management entity, "Policy and Charging Rules Function) need be passed through security gateway (SeGW), and security gateway also provides safeguard protection for being connected between femto gateway and the core network element.In addition; Being connected also between Home eNodeB/femto gateway and the Home eNodeB management system (HeMS) need be passed through security gateway (SeGW), and security gateway also provides safeguard protection for being connected between Home eNodeB/femto gateway and the Home eNodeB management system.Being connected and in the 3GPP standard, not defining between Home eNodeB/femto gateway and the Home eNodeB management system, thereby the interface between them of directly not drawing in the drawings.

The femto gateway that the embodiment of the invention 1 provides is owing to embedded S-GW and P-GW (all or part of) function, thereby the interface of S-GW and P-GW support, and the femto gateway that the embodiment of the invention 1 provides also can (all or part of) support.

The function of the Home eNodeB that the embodiment of the invention 1 provides comprises the some or all of of following function:

(1) RRM (Radio Resource Management, RRM) function.RRM comprises that following function is partly or entirely: radio bearer control (Radio Bearer Control), wireless access control (Radio Admission Control), connection mobility control (Connection MobilityControl), up-downgoing resource dynamic are distributed (i.e. scheduling); (2) user data is carried out compression of IP head and encryption; (3) the suitable femto gateway of discovery/selection; (4) user face data is routed to femto gateway; (5) scheduling and transmitting paging information (from femto gateway); (6) scheduling and transmitting broadcast information (from femto gateway or Home eNodeB management system); (7) to mobility and the measurement of scheduling and the configuration that reports; (8) (Closed Subscriber Group CSG) handles closed user group; (9) function of support self-organizing network is for example from (self-installation), self-configuring (self-configuration) are installed; (10) connect with the Home eNodeB management system, obtain and/or the update system parameter;

The function of the femto gateway that the embodiment of the invention 1 provides comprises that following function is partly or entirely:

(1) relaying S1 signaling; (2) support local IP to insert (LIPA) function (UE can pass through the direct interaction data of femto gateway and the Internet, and needn't carry out route via the core net of operator); (3) Lawful Interception; When (4) between the base station, switching, as the local mobile anchor point; (5) send one or more " end marks " (" end marker ") and give source base station; (6) downstream packets buffer memory and the service request flow process of initiating network-triggered under the Idle attitude; (7) bag route and forwarding; (8) up/downlink transfer layer bag mark; (9) keep accounts for chargeing between operator; (10) offline charging function; (11) the up-downgoing operation layer charges; (12) up-downgoing operation layer speed is carried out; (13) dynamic IP addressing is distributed (DHCP) function; (14) up-downgoing bearing binding; (15) up bearing binding checking; (16) every user/carrying book keeping operation;

According to family's access network system framework that the embodiment of the invention 1 provides, relevant protocol stack is following:

Fig. 6 is user face protocol stack (eating dishes without rice or wine) sketch map that the embodiment of the invention 1 provides; Wherein PDCP be PDCP (Packet Data Convergence Protocol, PDCP), RLC is radio link control (Radio Link Control; RLC); MAC is that (MediumAccess Control, MAC), PHY is physical layer (physical) agreement to medium access control system agreement.

Fig. 7 is chain of command protocol stack (eating dishes without rice or wine) sketch map that the embodiment of the invention 1 provides, wherein NAS be Non-Access Stratum (Non-Access Stratum, NAS) agreement, RRC be radio resource control (RadioResource Control, RRC).

Fig. 8 is user face protocol stack (S1-U interface) sketch map that the embodiment of the invention 1 provides: wherein GTP is GPRS Tunnelling Protocol (GTP) agreement, and UDP is a User Datagram Protocol agreement, and L2 and L2 represent the agreement of layer 2 and layer 1 respectively.

Fig. 9 is chain of command protocol stack (S1-MME interface) sketch map that the embodiment of the invention 1 provides: wherein S1-AP is S1 Application Part agreement (S1Application Protocol; S1-AP); SCTP be SCTP (Stream Control Transmission Protocol, SCTP).

Figure 10 is the schematic flow sheet that the UE that provides of the embodiment of the invention 1 networks, and may further comprise the steps:

Step 1001, UE sends NAS message " attach request " through HeNB and gives MME; Wherein NAS message can be included in the RRC signaling, and HeNB does not understand the NAS message of UE;

Step 1002, this NAS message of HeNB transparent transmission is given HeGW, passes through MME by HeGW again;

Step 1003, this UE is carried out the NAS authentication to MME and fail safe detects;

Step 1004, MME initiates position updating request to HSS, obtains user data;

Step 1005, HSS returns the MME position and upgrades response, wherein has user contracting data;

Step 1006, MME initiates to create conversation request to HeGW (because of its band S-GW function);

Step 1007, HeGW distributing user IP address (because of its band P-GW function) confirms to carry QoS, afterwards, returns MME and creates conversational response.

Step 1008, MME initiates initial context to HeGW and sets up request, has the determined carrying QoS of HeGW (S-GW function); HeGW is transmitted to HeNB.

Step 1009, HeNB initiates RRC link reprovision process to UE, consults relevant wireless parameter with UE, sets up the interface-free resources of carrying.

Step 1010, UE accomplishes and carries after the foundation, returns to HeNB RRC link reprovision and accomplishes.

Step 1011, HeNB returns to the MME initial context and sets up response, and this message is transmitted through the HeGW relaying.

Step 1012, UE sends " directly transmitting " message and gives HeNB, comprising " adhering to completion " message;

Step 1013, HeNB sends " adhering to completion " message to MME, and this message is through the HeGW transparent transmission; (receive adhere to accept message and obtain the IP address after, UE just can send upstream data to HeNB, the upstream data of being sent out is given to HeGW again through HeNB)

Step 1014, MME initiates to revise (renewals) to HeGW (S-GW functional module) and carries and ask, and the S1 user plane information of HeNB is sent to HeGW (S-GW functional module);

Step 1015, HeGW (S-GW functional module) returns modification (renewal) and carries response.(HeGW can begin to send the downlink data of buffer memory; )

Embodiment 2

Figure 11 is family's access network system Organization Chart of having disposed the Home eNodeB of band (partly or entirely) gateway function and (partly or entirely) packet data gateway function.

Shown in figure 11, LTE family access network (HAN, or be called the LTE WLAN) form by Home eNodeB (or claiming access point).Support X2 interface between the Home eNodeB, wherein chain of command is supported the X2-C interface, is used for mutual chain of command signaling, and user plane is supported the X2-U interface, is used for transmitting user data.

Figure 12 is the access network system logical architecture figure of LTE family that has disposed the Home eNodeB of band gateway function and packet data gateway function.

Shown in figure 12; The S1 interface of the mobile management entity of Home eNodeB support and core net; The S11 interface of the mobile management entity of Home eNodeB (because it comprises gateway function) support and core net, the Gx interface between optional support of Home eNodeB (because it comprises the packet data gateway function) and the "Policy and Charging Rules Function PCRF.In addition, some interface does not draw in the drawings, and these interfaces have, the SGi interface between optional support of femto gateway (because it comprises the packet data gateway function) and the IP of the operator service network element.

Shown in figure 12; Home eNodeB is arranged in enterprise network or local area network (LAN); Home eNodeB and core network element (mobile management entity for example; Home subscriber server, "Policy and Charging Rules Function) connection between need be passed through security gateway (SeGW), and security gateway also provides safeguard protection for being connected between Home eNodeB and the core network element.In addition, being connected also between Home eNodeB and the Home eNodeB management system (HeMS) need be passed through security gateway (SeGW), and security gateway also provides safeguard protection for being connected between Home eNodeB and the Home eNodeB management system.Being connected and in the 3GPP standard, not defining between Home eNodeB and the Home eNodeB management system, thereby the interface between them of directly not drawing in the drawings.

The function of Home eNodeB comprises the some or all of of following function:

(1) RRM RRM function.RRM comprises that following function is partly or entirely: radio bearer control, wireless access control, the control of connection mobility, up-downgoing resource dynamic are distributed (i.e. scheduling); (2) user data is carried out compression of IP head and encryption; (3) scheduling and transmitting broadcast information (from mobile management entity or Home eNodeB management system); (4) to mobility and the measurement of scheduling and the configuration that reports; (5) closed user group CSG handles; (6) function of support self-organizing network is for example from (self-installation), self-configuring (self-configuration) are installed; (7) support local IP to insert (LIPA) function (UE can pass through the direct interaction data of Home eNodeB and the Internet, and needn't carry out route via the core net of operator); (8) Lawful Interception; (9) bag route and forwarding; (10) up/downlink transfer layer bag mark; (11) keep accounts for chargeing between operator; (12) offline charging function; (13) the up-downgoing operation layer charges; (14) up-downgoing operation layer speed is carried out; (15) dynamic IP addressing is distributed (DHCP) function; (16) up-downgoing bearing binding; (17) up bearing binding checking; (18) every user/carrying book keeping operation;

The definition reference implementation of MME, HSS, PCRF and other relevant interface example 1 repeats no more at this in the present embodiment.

According to family's access network system framework of present embodiment, relevant protocol stack is following:

The user face protocol stack of present embodiment (eating dishes without rice or wine) figure and embodiment 1 identical (being Fig. 6) no longer repeat at this.Figure 13 is chain of command protocol stack (eating dishes without rice or wine), and as can be seen from the figure, the NAS signaling terminates at MME.Because S-GW/P-GW function that HeNB is integrated, thereby there is not the user face protocol stack of S1 interface.Figure 14 is chain of command protocol stack (S1-MME interface).

Figure 15 is the UE attachment flow figure according to present embodiment.Shown in figure 15, may further comprise the steps:

Step 1501, UE sends NAS message " attach request " through HeNB and gives MME; Wherein NAS message can be included in the RRC signaling, and HeNB does not understand the NAS message of UE;

Step 1502, this NAS message of HeNB transparent transmission is given MME;

Step 1503, this UE is carried out the NAS authentication to MME and fail safe detects;

Step 1504, MME initiates position updating request to HSS, obtains user data;

Step 1505, HSS returns the MME position and upgrades response, wherein has user contracting data;

Step 1506, MME initiates to create conversation request to HeNB (because of its band S-GW function);

Step 1507, HeNB distributing user IP address (because of its band P-GW function) confirms to carry QoS, afterwards, returns MME and creates conversational response.

Step 1508, MME initiates initial context to HeNB and sets up request, has the determined carrying QoS of HeNB (S-GW function);

Step 1509, HeNB initiates RRC link reprovision process to UE, consults relevant wireless parameter with UE, sets up the interface-free resources of carrying.

Step 1510, UE accomplishes and carries after the foundation, returns to HeNB RRC link reprovision and accomplishes.

Step 1511, HeNB returns to the MME initial context and sets up response.

Step 1512, UE sends " directly transmitting " message and gives HeNB, comprising " adhering to completion " message;

Step 1513, HeNB sends " adhering to completion " message to MME; (receive adhere to accept message and obtain the IP address after, UE just can send upstream data to HeNB, the upstream data of being sent out through HeNB to the Internet; )

Step 1514, MME initiates to revise (renewals) to HeNB (S-GW functional module) and carries and ask, and the S1 user plane information of HeNB is sent to HeNB (S-GW functional module);

Step 1515, HeNB (S-GW functional module) returns modification (renewal) and carries response.(HeNB can begin to send the downlink data of buffer memory; )

Embodiment 3

In order to reduce the complexity of the LTE network architecture, increase its flexibility, a kind of effective way is exactly that function with a plurality of network elements merges, and the partial function of core net is transferred to Access Network accomplish.Figure 16 is family's access network system Organization Chart of having disposed the femto gateway of Tape movement management entity function, gateway function and packet data gateway function.

Shown in figure 16, LTE family access network (HAN, or be called the LTE WLAN) form by one or more Home eNodeB of femto gateway and control thereof.Support the S1 interface between Home eNodeB (HeNB) and the femto gateway (HeGW), wherein chain of command supports that S1-C is a S1-MME interface, is used for the signaling of mutual chain of command, and user plane is supported S1-U interface, is used for interactive service data.Support X2 interface between the Home eNodeB, wherein chain of command is supported the X2-C interface, is used for mutual chain of command signaling, and user plane is supported the X2-U interface, is used for transmitting user data.

Figure 17 is the access network system logical architecture figure of LTE family that has disposed the femto gateway of Tape movement management entity function, gateway function and packet data gateway function.

Shown in figure 17, support the S1 interface between Home eNodeB (HeNB) and the femto gateway (HeGW), wherein chain of command supports that S1-C is a S1-MME interface, is used for the signaling of mutual chain of command, user plane is supported S1-U interface, is used for interactive service data.The S6a interface of the home subscriber server HSS network element of femto gateway (because it comprises the mobile management entity function) support and core net, the Gx interface between optional support of femto gateway (because it comprises the packet data gateway function) and the "Policy and Charging Rules Function PCRF.In addition, some interface does not draw in the drawings, and these interfaces have, the SGi interface between optional support of femto gateway (because it comprises the packet data gateway function) and the IP of the operator service network element.

Shown in figure 17; Femto gateway is the same with Home eNodeB; All be arranged in enterprise network or local area network (LAN); Connection between femto gateway and the core network element (for example home subscriber server, "Policy and Charging Rules Function) need be passed through security gateway (SeGW), and security gateway also provides safeguard protection for being connected between femto gateway and the core network element.In addition; Being connected also between Home eNodeB/femto gateway and the Home eNodeB management system (HeMS) need be passed through security gateway (SeGW), and security gateway also provides safeguard protection for being connected between Home eNodeB/femto gateway and the Home eNodeB management system.Being connected and in the 3GPP standard, not defining between Home eNodeB/femto gateway and the Home eNodeB management system, thereby the interface between them of directly not drawing in the drawings.

The function of Home eNodeB comprises the some or all of of following function:

(1) RRM RRM function.RRM comprises that following function is partly or entirely: radio bearer control, wireless access control, the control of connection mobility, up-downgoing resource dynamic are distributed (i.e. scheduling); (2) user data is carried out compression of IP head and encryption; (3) the suitable femto gateway of discovery/selection; (4) user face data is routed to femto gateway; (5) scheduling and transmitting paging information (from femto gateway); (6) scheduling and transmitting broadcast information (from femto gateway or Home eNodeB management system); (7) to mobility and the measurement of scheduling and the configuration that reports; (8) closed user group CSG handles; (9) function of support self-organizing network is for example from (self-installation), self-configuring (self-configuration) are installed; (10) connect with the Home eNodeB management system, obtain and/or the update system parameter.

The function of femto gateway comprises following function partly or entirely (wherein part of functions is derived from partial function and the interface of the MME/S-GW/P-GW of femto gateway embedding):

(1) termination S1 flow process/interface; (2) access control of closed user group (CSG) (access control); (3) member to hybrid sub-district (hybrid cell) verifies (membership verification); (4) support local IP to insert (LIPA) function (UE can pass through the direct interaction data of femto gateway and the Internet, and needn't carry out route via the core net of operator); (5) termination NAS signaling; (6) S1 connection management; (7) security control; (8) mobile management of Idle attitude; (9) NAS signaling (signaling); (10) fail safe of NAS signaling (encrypting and integrity protection); (11) accessibility of Idle attitude UE (comprise control and carry out the paging transmission); (12) roaming; (13) authentication; (14) authorize; (15) the bearer management function comprises dedicated bearing foundation; (16) Lawful Interception; (17) transmit alarm information; (18) the accessibility function of UE; (19) the user's switching controls under the femto gateway; When (20) between the base station, switching, as the local mobile anchor point; (21) send one or more " end marks " (" end marker ") and give source base station; (22) downstream packets buffer memory and the service request flow process of initiating network-triggered under the Idle attitude; (23) bag route and forwarding; (24) up/downlink transfer layer bag mark; (25) keep accounts for chargeing between operator; (26) offline charging function; (27) the up-downgoing operation layer charges; (28) up-downgoing operation layer speed is carried out; (29) dynamic IP addressing is distributed (DHCP) function; (30) up-downgoing bearing binding; (31) up bearing binding checking; (32) every user/carrying book keeping operation;

According to family's access network system framework of present embodiment, relevant protocol stack is following.User face protocol stack (eating dishes without rice or wine) is identical with embodiment 1 (being Fig. 6), and Figure 18 is chain of command protocol stack (eating dishes without rice or wine) figure, and as shown in the figure, the NAS signaling terminates at HeGW.User face protocol stack (S1-U interface agreement) is identical with embodiment 1 (being Fig. 8).Figure 19 is chain of command protocol stack (S1-MME interface) figure.

Figure 20 is the UE attachment flow figure according to present embodiment.Shown in figure 20, may further comprise the steps:

Step 2001, UE sends NAS message " attach request " through HeNB and gives HeGW (because of its band MME function); Wherein NAS message can be included in the RRC signaling, and HeNB does not understand the NAS message of UE;

Step 2002, this NAS message of HeNB transparent transmission is given HeGW;

Step 2003, this UE is carried out the NAS authentication to HeGW (because of its band MME function) and fail safe detects;

Step 2004, HeGW (because of its band MME function) initiates position updating request to HSS, obtains user data;

Step 2005, HSS returns to the HeGW position and upgrades response, wherein has user contracting data;

Step 2006, HeGW initiates initial context to HeNB and sets up request, has the determined carrying QoS of HeGW (S-GW function); (before this, creates conversation procedure and between embedded MME function of HeGW and S-GW function, accomplish, and the embedded P-GW function of HeGW is UE distributing IP address);

Step 2007, HeNB initiates RRC link reprovision process to UE, consults relevant wireless parameter with UE, sets up the interface-free resources of carrying.

Step 2008, UE accomplishes and carries after the foundation, returns to HeNB RRC link reprovision and accomplishes.

Step 2009, HeNB returns to the HeGW initial context and sets up response.

Step 2010, UE sends " directly transmitting " message and gives HeNB, comprising " adhering to completion " message;

Step 2011, HeNB sends " adhering to completion " message to HeGW; (receive adhere to accept message and obtain the IP address after, UE just can send upstream data to HeNB, the upstream data of being sent out is dealt into the Internet by HeGW through HeNB to HeGW again; Accomplish the bearing modification process between MME function that HeGW is embedded and S-GW function, HeGW can begin to send the downlink data of buffer memory then; )

Embodiment 4

In order to reduce the complexity of the LTE network architecture, increase its flexibility, a kind of effective way is exactly that function with a plurality of network elements merges, and the partial function of core net is transferred to Access Network accomplish.Figure 21 is family's access network system Organization Chart of having disposed the Home eNodeB of Tape movement management entity function, gateway function and packet data gateway function.

Shown in figure 21, LTE family access network (HAN, or be called the LTE WLAN) form by Home eNodeB (or claiming access point).Support X2 interface between the Home eNodeB, wherein chain of command is supported the X2-C interface, is used for mutual chain of command signaling, and user plane is supported the X2-U interface, is used for transmitting user data.

Figure 22 is the access network system logical architecture figure of LTE family that has disposed the Home eNodeB of Tape movement management entity function, gateway function and packet data gateway function.

Shown in figure 22; The S6a interface of the home subscriber server HSS network element of Home eNodeB (because it comprises the mobile management entity function) support and core net, the Gx interface between optional support of Home eNodeB (because it comprises the packet data gateway function) and the "Policy and Charging Rules Function PCRF.In addition, some interface does not draw in the drawings, and these interfaces have, the SGi interface between optional support of femto gateway (because it comprises the packet data gateway function) and the IP of the operator service network element.

Shown in figure 22; Home eNodeB is arranged in enterprise network or local area network (LAN); Home eNodeB and core network element (mobile management entity for example; Home subscriber server, "Policy and Charging Rules Function) connection between need be passed through security gateway (SeGW), and security gateway also provides safeguard protection for being connected between Home eNodeB and the core network element.In addition, being connected also between Home eNodeB and the Home eNodeB management system (HeMS) need be passed through security gateway (SeGW), and security gateway also provides safeguard protection for being connected between Home eNodeB and the Home eNodeB management system.Being connected and in the 3GPP standard, not defining between Home eNodeB and the Home eNodeB management system, thereby the interface between them of directly not drawing in the drawings.

The function of Home eNodeB comprises the some or all of of following function:

(1) RRM RRM function.RRM comprises that following function is partly or entirely: radio bearer control, wireless access control, the control of connection mobility, up-downgoing resource dynamic are distributed (i.e. scheduling); (2) user data is carried out compression of IP head and encryption; (3) scheduling and transmitting broadcast information (from Home eNodeB or Home eNodeB management system); (4) to mobility and the measurement of scheduling and the configuration that reports; (5) closed user group CSG handles; (6) function of support self-organizing network is for example from (self-installation), self-configuring (self-configuration) are installed; (7) connect with the Home eNodeB management system, obtain and/or the update system parameter; (8) access control (accesscontrol) of closed user group (CSG); (9) member to hybrid sub-district (hybrid cell) verifies (membership verification); (10) support local IP to insert (LIPA) function (UE can pass through the direct interaction data of Home eNodeB and the Internet, and needn't carry out route via the core net of operator); (11) termination NAS signaling; (12) security control; (13) NAS signaling (signaling); (14) fail safe of NAS signaling (encrypting and integrity protection); (15) when switching needs change MME (when Home eNodeB is altered to mobile management entity), the selection of MME; (16) roaming; (17) authentication; (18) authorize; (19) the bearer management function comprises dedicated bearing foundation; (20) Lawful Interception; (21) bag route and forwarding; (22) up/downlink transfer layer bag mark; (23) keep accounts for chargeing between operator; (24) offline charging function; (25) the up-downgoing operation layer charges; (26) up-downgoing operation layer speed is carried out; (27) dynamic IP addressing is distributed (DHCP) function; (28) up-downgoing bearing binding; (29) up bearing binding checking; (30) every user/carrying book keeping operation;

The definition reference implementation of HSS, PCRF and other relevant interface example 1 repeats no more at this in the present embodiment.

According to family's access network system framework of present embodiment, relevant protocol stack is following.The user face protocol stack of present embodiment (eating dishes without rice or wine) is identical with embodiment 1 (being Fig. 6); Figure 23 is chain of command protocol stack (eating dishes without rice or wine) figure, and is as shown in the figure, and the NAS signaling is by HeNB (because of its integrated function of MME) termination.

Figure 24 is the UE attachment flow figure according to present embodiment.Shown in figure 24, may further comprise the steps:

Step 2401, UE sends " attach request " and gives HeNB (because of its band MME function); Wherein NAS message can be included in the RRC signaling;

Step 2402, this UE is carried out the NAS authentication to HeNB (because of its band MME function) and fail safe detects;

Step 2403, HeNB (because of its band MME function) initiates position updating request to HSS, obtains user data;

Step 2404, HSS returns to the HeNB position and upgrades response, wherein has user contracting data;

Step 2405, HeNB initiates RRC link reprovision process to UE, consults relevant wireless parameter with UE, sets up the interface-free resources of carrying.(before this, creates conversation procedure and between embedded MME function of HeNB and S-GW function, accomplish, and the embedded P-GW function of HeNB is UE distributing IP address);

Step 2406, UE accomplishes and carries after the foundation, returns to HeNB RRC link reprovision and accomplishes.(initial context is based upon the inner completion of HeNB)

Step 2407, UE sends " directly transmitting " message and gives HeNB, comprising " adhering to completion " message; (receive adhere to accept message and obtain the IP address after, UE just can send upstream data to HeNB, the upstream data of being sent out is dealt into the Internet through HeNB; Accomplish the bearing modification process between MME function that HeNB is embedded and S-GW function, HeNB can begin to send the downlink data of buffer memory then; )

Supplementary notes; The protocol stack of the layer 2 of user plane in the present invention (eating dishes without rice or wine) and chain of command (eating dishes without rice or wine) can be different with the instance among the embodiment, and the protocol stack in instance middle level 2 comprises PDCP, RLC; With the MAC agreement; The present invention does not receive the restriction of the protocol stack of layer 2, is applicable to that promptly the protocol stack of layer 2 is the situation of any agreement, and the situation (this MAC agreement possibly combine all or part of function of original rlc protocol and/or PDCP agreement) of a MAC agreement is for example only arranged.

The above is merely preferred embodiment of the present invention, not in order to restriction the present invention.

Claims (25)

1. an access network elements is characterized in that, comprises in the said access network elements:

The gateway function module is used for gateway function is fused to said access network elements;

The packet data gateway functional module is used for the packet data gateway function is fused to said access network elements.

2. access network elements according to claim 1 is characterized in that, said packet data gateway function comprises and the Internet interaction data function that user terminal is through said access network elements and the Internet interaction data.

3. access network elements according to claim 1 is characterized in that, said gateway function module is used to carry out one of following function at least:

During switching as the mobility anchor point;

Downstream packets buffer memory and the service request flow process of initiating network-triggered;

Bag route and forwarding.

4. access network elements according to claim 1; It is characterized in that; Said packet data gateway function comprises the Gx interface between support and the "Policy and Charging Rules Function PCRF, carries out the mutual of strategy and charging regulation information through said Gx interface between said access network elements and the said "Policy and Charging Rules Function PCRF.

5. access network elements according to claim 1 is characterized in that, said access network elements also comprises:

The mobile management entity functional module is used for the mobile management entity function is fused to said access network elements.

6. access network elements according to claim 5 is characterized in that, said mobile management entity function comprises termination Non-Access Stratum NAS signaling capability, said access network elements termination Non-Access Stratum NAS signaling.

7. access network elements according to claim 5; It is characterized in that; Said mobile management entity function comprises the S6a interface function between support and the home subscriber server HSS, carries out the mutual of CAMEL-Subscription-Information through the S6a interface between said access network elements and the HSS.

8. according to each described access network elements of claim 1-7, it is characterized in that, being connected between said access network elements and the core net through security gateway, said security gateway be said access network elements with core net between be connected safeguard protection be provided.

9. according to each described access network elements of claim 1-7, it is characterized in that said access network elements receives mount message and/or configuration information from management system in installation and/or layoutprocedure.

10. according to each described access network elements of claim 1-7; It is characterized in that; Said access network elements is a femto gateway; Said femto gateway connects one or more Home eNodeB, and said gateway function comprises the S1 interface between support and Home eNodeB, passes through the S1 interactive interfacing between said femto gateway and the Home eNodeB.

11., it is characterized in that said access network elements is a Home eNodeB according to each described access network elements of claim 1-7.

12. an access network system is characterized in that, this access network system comprises:

Home eNodeB is used to user terminal Radio Resource is provided, and links to each other with femto gateway through the S1 interface; Said Home eNodeB is also supported X2 interface, is used for mutual between the Home eNodeB;

Femto gateway; Be used to connect one or more Home eNodeB; Said femto gateway converged services gateway function and packet data gateway function; Wherein said packet data gateway function comprises and the Internet interaction data function that said gateway function comprises when supporting to switch as the mobility anchor point.

13. access network system according to claim 12 is characterized in that,

Said femto gateway also merges the mobile management entity function, and said mobile management entity function comprises termination Non-Access Stratum NAS signaling capability and comprises the S6a interface function between support and the home subscriber server HSS.

14. access network system according to claim 12 is characterized in that,

Said packet data gateway function comprises the Gx interface between support and the "Policy and Charging Rules Function PCRF, carries out the mutual of strategy and charging regulation information through said Gx interface between said femto gateway and the said "Policy and Charging Rules Function PCRF.

15. access network system according to claim 12 is characterized in that,

Being connected between said femto gateway and the core net through security gateway, said security gateway be said femto gateway with core net between be connected safeguard protection be provided.

16. an access network system is characterized in that, this access network system comprises:

Home eNodeB, this Home eNodeB provides the Radio Resource except that being used to user terminal, and this Home eNodeB has also merged gateway function and packet data gateway function, and wherein said packet data gateway function comprises and the Internet interaction data function; Said gateway function comprises when supporting to switch as the mobility anchor point; Said Home eNodeB is also supported X2 interface, is used for mutual between the Home eNodeB.

17. access network system according to claim 16 is characterized in that,

Said Home eNodeB also merges the mobile management entity function, and said mobile management entity function comprises termination Non-Access Stratum NAS signaling capability and comprises the S6a interface function between support and the home subscriber server HSS.

18. access network system according to claim 16 is characterized in that,

Said packet data gateway function comprises the Gx interface between support and the "Policy and Charging Rules Function PCRF, carries out the mutual of strategy and charging regulation information through said Gx interface between said Home eNodeB and the said "Policy and Charging Rules Function PCRF.

19. access network system according to claim 16 is characterized in that,

Being connected between said Home eNodeB and the core net through security gateway, said security gateway be said Home eNodeB with core net between be connected safeguard protection be provided.

20. a cut-in method is characterized in that this method is applied to the access network elements of converged services gateway function and packet data gateway function, this method comprises:

This message of transparent transmission was given mobile management entity MME after access network elements received the attach request at terminal, and UE, mobile management entity MME and home subscriber server HSS are mutual then accomplishes to the authentication at terminal and position new technological process more;

Carry out between the mobile management entity MME of said access network elements and core net alternately, accomplish the establishment conversation procedure of initiating by the mobile management entity MME of core net;

Carry out alternately between the mobile management entity MME of said access network elements and core net, accomplish the initial context of initiating and set up process, and completion links the reprovision process with RRC between the terminal by the mobile management entity MME of core net;

After accomplishing attachment flow, carry out between access network elements and MME and revise load bearing process.

21. method according to claim 20 is characterized in that, said access network elements is a Home eNodeB; Said establishment conversation procedure is specially:

The mobile management entity MME of core net is sent to said Home eNodeB and is created conversation request, and said Home eNodeB is user's distributing IP address, confirms bearer quality of service QoS, sends to the mobile management entity MME of core net then and creates conversational response;

Said modification load bearing process is specially:

The mobile management entity MME of core net is sent the request of carrying of revising to said Home eNodeB, and the S1 user plane information of said Home eNodeB is sent to said Home eNodeB; Said Home eNodeB returns to revise and carries the mobile management entity MME that core net is given in response.

22. method according to claim 20; It is characterized in that; Said access network elements comprises Home eNodeB and femto gateway, and said femto gateway has merged gateway function and packet data gateway function, and said femto gateway connects one or more Home eNodeB;

Said establishment conversation procedure is specially:

The mobile management entity MME of core net is sent to said femto gateway and is created conversation request, and said femto gateway is user's distributing IP address, confirms bearer quality of service QoS, sends to the mobile management entity MME of core net then and creates conversational response;

Said modification load bearing process is specially:

The mobile management entity MME of core net is sent the request of carrying of revising to said femto gateway, and the S1 user plane information of said Home eNodeB is sent to said femto gateway; Said femto gateway returns to revise and carries the mobile management entity MME that core net is given in response.

23. a cut-in method is characterized in that, this method is applied to the access network elements of converged services gateway function, packet data gateway function and mobile management entity function, and this method comprises:

Access network elements carries out the NAS authentication to the terminal after receiving the NAS message that comprises attach request of sending at the terminal;

Executing location is upgraded between said access network elements and the home subscriber server HSS, and obtains user data;

Said access network elements is carried out initial context and is set up process, and completion links the reprovision process with RRC between the terminal;

After said access network elements receiving terminal was accomplished message through adhering to of direct pass-along message transmission, said access network elements was carried out the bearing modification process.

24. method according to claim 23; It is characterized in that; Said access network elements comprises Home eNodeB and femto gateway; Said femto gateway has merged gateway function, packet data gateway function and mobile management entity function, and said femto gateway connects one or more Home eNodeB;

Executing location is upgraded and is obtained after the user data between said femto gateway and the home subscriber server HSS; Accomplish between mobile management entity function that said femto gateway is embedded and the gateway function and create conversation procedure, and the packet data gateway function is terminal distribution IP address;

Said access network elements is carried out initial context and is set up process, and completion links the reprovision process with RRC between the terminal and specifically comprises:

Said femto gateway initiates to carry the initial context foundation request of the service quality QoS that distributes into the user to said Home eNodeB; Said Home eNodeB is initiated RRC link reprovision process to the terminal; Consult relevant wireless parameter with the terminal, set up the interface-free resources of carrying, after the terminal completion is carried and set up; Send RRC link reprovision to said Home eNodeB and accomplish message, said Home eNodeB sends initial context to said femto gateway and sets up response.

25. method according to claim 23 is characterized in that, said access network elements is a Home eNodeB, and said access network elements is carried out initial context and set up process, and completion links the reprovision process with RRC between the terminal and is specially:

Accomplish between mobile management entity function that said Home eNodeB is embedded and the gateway function and create conversation procedure, and the packet data gateway function is terminal distribution IP address;

After the inner completion of said Home eNodeB initial context is set up process; Initiate RRC link reprovision process to the terminal, consult relevant wireless parameter, set up the interface-free resources of carrying with the terminal; The terminal is accomplished and is carried after the foundation, sends RRC link reprovision to said Home eNodeB and accomplishes message.

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