CN101370177B

CN101370177B - Method, customer equipment and system for registering into circuit field core network

Info

Publication number: CN101370177B
Application number: CN2007101467730A
Authority: CN
Inventors: 于益俊
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2007-08-16
Filing date: 2007-08-16
Publication date: 2011-08-10
Anticipated expiration: 2027-08-16
Also published as: CN101370177A

Abstract

The invention discloses a method of registering to a circuit domain core network. User equipment sends a registration request to an evolution packet network; the evolution packet network sends the request to the circuit domain core network through an interface provided from the access network to the core network; the circuit domain core network responds to the request of the user equipment and finishes the registration from the user equipment to the circuit domain. The invention also discloses user equipment and a system. The user equipment is provided with a first unit obtaining identification information that the evolution packet network is connected to the interface of the circuit domain core network and storing the identification information, a second unit registering correlative information to the circuit domain core network, and a third unit obtaining the correlative information from the second unit and sending the message registered to the circuit domain core network to the evolution packet network. Through the invention, the user equipment realizes being registered to the circuit domain core network when registered to the evolution packet network, so the invention provides guarantee that the user equipment uses the services of the circuit domain core network through the packet domain network.

Description

Be registered to method, subscriber equipment and the system of circuit domain core net

Technical field

The present invention relates to the communications field, particularly a kind of method, subscriber equipment and system that is registered to circuit domain core net.

Background technology

Third generation partner program (3rd Generation Partnership Project, hereinafter to be referred as: 3GPP) Ding Yi mobile radio communication comprises Radio Access Network (Radio Access Network, be called for short: RAN) and core network (Core Network, abbreviation: CN) two parts.Wherein RAN is used to handle all and wireless function associated, and CN handles that all voice calls are connected with data in the mobile communication system, and the exchange of realization and external network and routing function.(Circuit Switched Domain is called for short: CS) and packet-switched domain (Packet SwitchedDomain, abbreviation: PS) CN from being divided into circuit commutative field in logic.

Referring to Fig. 1, it is a mobile communication network configuration diagram of having introduced soft switch, and the CS territory is used to provide speech business, and the PS territory is used to provide data service.

(Base Transceiver Station is called for short: during BTS) from 2G or 2.5G network insertion by base transceiver station as UE, for the voice class business, broadband service controller (Broadwidth ServeController, be called for short: (the Mobile Switch Center of mobile switching centre that BSC) passes through CS territory in " Iu-CS/A " interface and the core net, be called for short: MSC) server and media gateway (MediaGateway, be called for short MGW) link to each other, wherein the interface between BSC and the MSC server is the chain of command interface, and is interface in the user plane between the MGW.For data services, BSC is connected to GPRS (the General Packet Radio Service in PS territory by " Gb " interface, be called for short: GPRS) Serving GPRS Support Node (Serving GPRS Support Node, be called for short: SGSN), (Gateway GPRS Support Node is called for short: GGSN) be connected to packet data network by the gateway GPRS support node.

When UE when 3G network inserts, for the voice class business, (RadioNetwork Controller RNC) is connected to the MSC server and the MGW in CS territory to radio network controller by " Iu-CS " interface, carry out the processing of speech business.Wherein and the interface between the MSC server be the chain of command interface, and be interface in the user plane between the MGW.For data services, RNC then is connected to the SGSN in PS territory by " Iu-PS " interface, be connected to packet data network by GGSN.For the speech business of Internet Protocol telephone (Voice overInternet Protocol, be called for short a VoIP) class, also can utilize " Iu-PS " interface to be connected to the SGSN in PS territory by RNC, and be connected to packet data network by GGSN.

In order to keep the leading superiority of 3GPP network, 3GPP will have formulated the Long Term Evolution plan in the end of the year 2004, and (Long Term Evolution is called for short: LTE).Except the research to wireless access network evolution, 3GPP also will carry out the evolution work of system architecture aspect, and it is defined as System Architecture Evolution, and (SystemArchitecture Evolution is called for short: SAE).Therefore, whole plan is divided according to structure and also can be divided into two parts: wireless side (refers generally to: LTE) and network side (SAE).At present, 3GPP has determined the LTE/SAE system architecture, and SAE is renamed grouping system into evolution, and (EvolvePacket System is called for short: EPS).

Referring to Fig. 2, it is for the mobile network system configuration diagram of evolution.The mobile network system framework of this evolution is more flat, also is that the relation of each network element framework levels off to " equality ", but not in the past the front and back of framework, up and down, principal and subordinate's relation.The base station eNodeB that Access Network partly synthesizes evolution with the base station node B and the RNC of original 3G network, and removed circuit commutative field, only kept original packet-switched domain.Therefore, when UE when LTE inserts, for speech business and data service, the base station eNodeB of evolution all by " S1 " interface and mobile management entity MME, (Serving Gateway is called for short: S-GW) connect gateway.Wherein, chain of command interface by " S1-MME " between the base station eNodeB of evolution and the MME connects, and the interface in the user plane that then passes through " S1-U " between the S-GW connects, and by grouped data network gateway (Packet Data Network Gateway, be called for short: (IP Multimedia Subsystem is called for short: IMS) network P-GW) to be connected to packet network or IP multimedia system.General data service is linked into packet network; For other business, for example: voice class business etc. then are linked into the IMS network and handle.

(Universal MobileTelecommunications System, be called for short: " Iu " interface function UMTS) is similar, and the interface between Access Network and the core net all is provided for " S1 " interface among the LTE/SAE and universal mobile telecommunications system.

And for the common carrier that has 2G or 3G network, owing to built up mature C S network, and can provide abundant voice class business based on aforementioned 2G or 3G network, and the part value-added service.Therefore, these common carriers in the process of LTE/SAE evolution, if can make full use of existing CS network, just can reduce the networking cost with its communication operation network system as much as possible, reduce investment, and accelerate professional speed to introduce.

A kind of method of the CS of reusing network is: the RNC among the former RAN of the common simulation of MME and S-GW provides " Iu-CS " interface to the MSC in CS territory server and MGW, constitute the Access Network in CS territory jointly by eNodeB, MME and S-GW, reuse the purpose that the CS network is finished speech business thereby reach.The name that this forward direction China national Department of Intellectual Property of the applicant submits is called the patent application of " a kind of method for reusing circuit domain core net and communication system and relevant device ", at length disclosed the technical scheme of preceding method, below just wherein main contents be introduced:

Referring to Fig. 3, it inserts CS network architecture schematic diagram for the evolution Packet Based Network; When UE is attached to the LTE/SAE network, by MME, S-GW that the eNodeB of Access Network is connected to core net, further be connected in packet network and the IMS network again by P-GW for PS business (comprising the VoIP business).

For voice class or CS value-added service, then be connected to the MME or the S-GW of core net by the eNodeB of LTE/SAE Access Network, utilize MME and S-GW to be connected in the CS territory again to " Iu-CS " interface that the CS territory provides.Wherein, the interface between the MSC server in MME in the core net and the CS territory is " Iu-CS " chain of command interface, and the interface between the MGW in S-GW in the core net and the CS territory is " Iu-CS " interface in the user plane.If soft-exchange construction (promptly this CS territory only meets 3GPP standard R4 version before) is not adopted in the CS territory, then MME in the core net and S-GW all are connected on the MSC, and finish the function of chain of command and user's face respectively.At this moment, the eNodeB of LTE/SAE Access Network and the MME of core net and S-GW provide the RNC function of simulation as the access network equipment in CS territory.

In aforesaid technical scheme, UE needs at first to finish registration in the EPS network, and in order to utilize the CS network that CS is provided business, then UE also need register at the CS network.

Please again referring to Fig. 1, in the existing GPRS/UMTS network, the Mobility Management Entity of circuit domain core net is the MSC server, and the Mobility Management Entity of packet domain then is SGSN, can connect by " Gs " interface between two network elements.If current network support " Gs " interface, then send when adhering to request to the SGSN of packet domain as UE, can carry the relevant information of adhering to of circuit domain, for example: circuit domain is distributed to Temporary Mobile Subscriber Identity (Temporary Mobile SubscriberIdentity, the abbreviation: TMSI) of respective user equipment; Receive the Attach Request message of UE transmission as SGSN after, finishing packet domain adheres to processing on the one hand, also sends location update request message by " Gs " interface to the MSC of circuit domain core net server on the other hand, to carry out the registration of UE at circuit domain core net; And utilize adhering to of packet domain to receive message and carry the parameter that circuit domain core net distributes for this UE, for example: TMSI etc., thus the registration of UE finished at packet domain and circuit domain core net.Referring to Fig. 4, aforementioned UE is actually a kind of CS/PS and unites the process of adhering to based on supporting adhering to of " Gs " interface, and its concrete handling process is as follows:

N1, UE send Attach Request message (Attach Request) to SGSN, and this type of attachment is adhered to for associating GPRS/IMSI;

N2, SGSN carry out identification (Identity Procedure) to UE;

N3, SGSN initiate an authorizing procedure for this UE (Authentication Procedure);

If the packet data protocol of this UE of existence among the N4 SGSN (Packet Data Protocol, be called for short: context PDP), then delete these PDP Contexts (Delete PDP ContextProcedure);

(Home Location Register is called for short: HLR) initiate to upgrade the position flow process, obtain the subscription data (Update Location Procedure) of UE to attaching position register for N5, SGSN;

N6, SGSN are to (the Mobile Switch Centre of mobile switching centre, be called for short: MSC)/visitor location register (Visitor Location Register, be called for short: VLR) send position updating request, replace UE to carry out IMSI and adhere to (Location Update Request);

N7, MSC/VLR record SGSN number, and, obtain the subscription data (Update Location Procedure) of UE in the CS territory to HLR initiation renewal position flow process;

N8, MSC/VLR upgrade response message (Location UpdateResponse) to the SGSN home position, and this position is upgraded in the response message can carry the TMSI that distributes into UE;

N9, SGSN return to adhere to UE and receive message (Attach Accept);

If N10 has redistributed Packet-TMSI (P-TMSI) or TMSI for UE, then UE returns to adhere to SGSN and finishes message (Attach Complete);

N11, SGSN receive that UE after adhering to of returning of SGSN finished message, if for UE has redistributed TMSI, then returns TMSI Reallocation Complete message (TMSI ReallocationComplete) to MSC/VLR.

In the aforesaid technical scheme, step N2-N8 and step N10, N11 are optional steps, in other words: these steps are not necessarily carried out, unless carrying out the condition of these steps sets up, that is: as SGSN execution in step N2-N8 during the relevant information of this UE not, perhaps work as UE and be reallocated P-TMSI or TMSI, execution in step N10, N11.

Although the aforementioned techniques scheme can realize the registration of UE to CS and PS territory,, its application scenarios is generally limited to existing GPRS/UMTS network, carries out the place in circuit network and handles and can not be applied to the evolution Packet Based Network, and its reason is:

1) adopt " Gs " interface to carry out alternately in this technical scheme between SGSN and the MSC, and in the mobile network system framework of as shown in Figure 2 evolution, adopt " Iu-CS " interface to carry out alternately between MME and the MSC, the difference of its interface, the difference that causes handling process, therefore, aforementioned prior art scheme as shown in Figure 4 can not be applied directly to the evolution Packet Based Network and carries out the place in circuit network and handle;

2) in this technical scheme, because circuit domain and the air interface technologies of packet domain and the frequency of employing etc. are identical substantially, therefore UE can be linked among packet domain and the circuit domain core net simultaneously, when finish aforesaid unite adhere to after, UE still directly links MSC by the circuit domain base station, finishes the processing for the business of circuit domain.But,, then need to adopt the air interface of the grouping system of evolution to be linked into packet domain, and circuit domain core net still adopts the core network of existing GPRS/UMTS if when being linked into the grouping system of evolution; Be linked into the packet domain core network of evolution by the packet domain Access Network of evolution, be linked into the processing procedure of existing circuit domain core network again, there are bigger difference in the access processing scheme and the aforementioned prior art scheme of this packet domain based on evolution on treatment mechanism, therefore can not directly use.

Summary of the invention

First aspect of the present invention is to provide the method for a kind of user equipment registration to circuit domain core net by some embodiment, make that subscriber equipment can be in the process of carrying out the registration of evolution Packet Based Network, be implemented to the registration of circuit domain core net, thereby use the business of circuit domain core net that the basis is provided by packet field network and guarantee for subscriber equipment.

Second aspect of the present invention is to provide a kind of subscriber equipment by other embodiment, this subscriber equipment has such unit: itself and evolution Packet Based Network are carried out alternately, processing in being attached to evolution Packet Based Network process to the registration of circuit domain core net operation, thereby use the business of circuit domain core net that the basis is provided by packet field network and guarantee for subscriber equipment.

The 3rd aspect of the present invention is to provide a kind of system by other embodiment, this system has such module: the evolution Packet Based Network of its stored configuration provides the configuration information of connecting circuit domain core net interface, and receive configuration messages or order, described configuration information is stored.Thereby for subscriber equipment uses the business of circuit domain core net that basis and assurance are provided by packet field network.

The user equipment registration that some embodiment provided of first aspect of the present invention comprises to the method for circuit domain core net: subscriber equipment sends the request that is registered to circuit domain core net to the evolution Packet Based Network; The Access Network that the evolution Packet Based Network provides by mobile management entity and the interface of core net are transmitted to circuit domain core net with this request; Circuit domain core net is finished the registration of subscriber equipment to circuit domain core net by the request of evolution Packet Based Network response subscriber equipment; Aforementioned subscriber equipment support is linked into circuit domain core net by the evolution Packet Based Network; And described evolution Packet Based Network provides the interface that is connected to circuit domain core net.

Need to prove: in order to realize aforesaid technical scheme, subscriber equipment need possess the ability that is linked into circuit domain core net by the evolution Packet Based Network, and identify this terminal by some ability information and possess aforesaid ability, these identification informations can pass to the evolution Packet Based Network by means of the interactive information with the evolution Packet Based Network by subscriber equipment; In addition, aforementioned evolution Packet Based Network also should possess " Iu-CS " interface or " A " interface that is connected to circuit domain core net.

Based on above-mentioned technical scheme, subscriber equipment can be linked into the characteristics of circuit domain core network by means of the evolution Packet Based Network by " Iu-CS " interface or " A " interface, is registered to the circuit domain core network by the evolution Packet Based Network.Like this, subscriber equipment can proceed to the registration of circuit domain core net when carrying out evolution Packet Based Network registration process, thereby the business of using circuit domain core net to provide by the evolution Packet Based Network for subscriber equipment provides the foundation and guarantee.

A kind of subscriber equipment that some embodiment provided of second aspect of the present invention specifically comprises: be arranged on the first module on the subscriber equipment, this first module is used to obtain and write down the identification information that the evolution Packet Based Network provides connecting circuit domain core net interface; In addition, this subscriber equipment also will be provided with Unit second, and this Unit second is used to store the identification information that the evolution Packet Based Network provides connecting circuit domain core net interface, and to the relevant information of circuit domain core net registration; After subscriber equipment is established to adhering to of evolution Packet Based Network, can be according to the indication information of evolution Packet Based Network transmission, initiation is registered to the operation of circuit domain core net, therefore, for this purpose, also Unit the 3rd need be set in subscriber equipment, Unit the 3rd is used for obtaining relevant information from Unit second, sends the message that is registered to circuit domain core net to the evolution Packet Based Network.

The subscriber equipment that embodiment provided of second aspect of the present invention, based on each unit that possesses, can be linked into circuit domain core net by the evolution Packet Based Network, therefore can in the process of carrying out the registration of evolution Packet Based Network, proceed to the registration of circuit domain core net, thereby be that this subscriber equipment uses the business of circuit domain core net to provide the foundation and guarantee by packet field network.

The system that some embodiment provided of the 3rd aspect of the present invention comprises: evolution Packet Based Network and/or circuit domain core net and HSS/HLR; Be provided with in this evolution Packet Based Network: subscriber equipment, evolution Packet Based Network, circuit domain core net and HSS/HLR; It is characterized in that, also comprise: first installs, and is used for the configuration information of stored configuration, and this configuration information is used to indicate the evolution Packet Based Network by corresponding interface connecting circuit domain core net; Second device is used to receive configuration messages or order, and described configuration information is stored in aforesaid first module.

The system that embodiment provided of third aspect of the present invention, based on each module that possesses, can be so that the evolution Packet Based Network be configured to be linked into the information of circuit domain core net, therefore can make subscriber equipment in the process of carrying out the registration of evolution Packet Based Network, proceed to the registration of circuit domain core net, thereby be that this subscriber equipment uses the business of circuit domain core net to provide the foundation and guarantee by packet field network.

Below by concrete execution mode, content of the present invention is described in further detail.

Description of drawings

Fig. 1 is existing 3GPP mobile communication network configuration diagram;

The mobile network system configuration diagram of Fig. 2 evolution;

Fig. 3 evolution Packet Based Network inserts the schematic diagram of CS network architecture diagram;

Fig. 4 unites the schematic flow sheet that adheres to based on the existing CS/PS of Fig. 1 network architecture;

The schematic flow sheet of first embodiment of first aspect of Fig. 5 the present invention;

The schematic flow sheet of second embodiment of first aspect of Fig. 6 the present invention;

The schematic flow sheet of the 3rd embodiment of first aspect of Fig. 7 the present invention;

The schematic flow sheet of the 4th embodiment of first aspect of Fig. 8 the present invention;

The embodiment system schematic of Fig. 9 third aspect of the present invention;

Another embodiment system schematic of Figure 10 third aspect of the present invention.

Embodiment

The realization basis of each embodiment of first aspect of the present invention need be based on two following conditions:

1, UE possesses the management function of evolution Packet Based Network and circuit domain core net, carries out can being accomplished to the registration of circuit domain core net according to the indication of network in the process of evolution Packet Based Network registration at it; Perhaps, initiatively be initiated to the registration of circuit domain core net according to the ability of network;

2, in the process of aforementioned registration, the MME of evolution Packet Based Network also can replace UE to be initiated to the location registration process process of circuit domain core net according to the aforementioned ability of UE.

Referring to Fig. 5, a concrete UE comprises following step by the evolution Packet Based Network to the example of circuit domain core net registration:

A1, UE send Attach Request message (Attach Request) to the evolution Packet Based Network; This Attach Request message sends to the MME of evolution Packet Based Network by base station eNodeB;

Next be some optional steps, they comprise four following steps at least:

A2, MME and UE carry out alternately the identity of this UE being discerned (Identity Procedure);

A3, MME and UE and HSS or HLR carry out alternately UE being carried out authentication (AuthenticationProcedure);

A4, when having the bearer context of UE among the MME, then initiate the flow process (Delete Bearer Procedure) of this carrying of deletion to the SAE-GW of evolution Packet Based Network;

A5, MME and HLR or HSS are mutual, carry out the operation that the position is upgraded, and will himself be registered to HSS or HLR, and obtain the subscription data (Update Location Procedure) of UE;

After this then be again some necessary processing steps: they comprise:

A6, MME initiate to set up the default bearer flow process to SAE-GW; Set up the carrying (Create Default Bearer Procedure) of transport service for this UE;

A7, MME send to adhere to base station eNodeB and receive message (Attach Accept);

Set up radio bearer (RB Establishment Procedure) between A8, base station eNodeB and the UE;

A9, base station eNodeB are returned to adhere to MME and are finished message (Attach Complete);

A10, MME initiate bearer update flow process (Update Bearer Procedure) to SAE-GW; If the evolution Packet Based Network has the ability that is linked into the circuit domain core network by " Iu-CS " interface, aforementioned UE adhere to finish after, can not discharge mobile management immediately connects, that is: between subscriber equipment and the base station eNodeB, and the signaling that exists between base station eNodeB and the MME connects abbreviation: the MM connection;

A11, according to preceding described, because MME provides " Iu-CS " interface of circuit domain core net, therefore can be when UE supports to pass through the disposal ability of packet domain place in circuit domain core net, then the MSC/VLR in the circuit domain core network sends location update request message (Location Updating Request), set up simultaneously MME between the MSC/VLR based on the connection of " Iu-CS " interface;

After A12, MSC/VLR receive this location update request message, handle, and send the position to MME and upgrade and receive message (Location Updating Accept), so far, realized that " Iu-CS " interface by the evolution Packet Based Network is to the registration of circuit domain core net.

Aforesaid embodiment provides UE based on the basic processing flow process of " Iu-CS " interface by the evolution Packet Based Network to the circuit domain core net registration.But in fact, the aforementioned techniques scheme can basis: UE acquisition evolution Packet Based Network provide the ability information that inserts to circuit domain core net by " Iu-CS " interface, perhaps evolution Packet Based Network knows that UE possesses support is linked into circuit domain core net by the evolution Packet Based Network differences constantly such as ability information, and changes to some extent.Therefore, the present invention also provides based on aforementioned basic processing flow process, situation about obtaining in conjunction with above-mentioned various ability information and the embodiment of each handling process of developing is specific as follows:

On the basis of previous embodiment, a kind of situation of variation is: after the UE start, can search for current available evolution Packet Based Network, when searching, initiate attachment flow to this evolution Packet Based Network, require to be registered to this evolution packet network.If MME in this evolution packet network or SAE-GW provide " Iu-CS " interface of circuit domain core net, then, adheres to when receiving message MME when sending evolution packet network to UE, notice UE is provided to " Iu-CS " interface of circuit domain core net by this evolution Packet Based Network, UE can be initiated to the register flow path of circuit domain core net, is accomplished to the registration of UE circuit domain core net.Referring to Fig. 6, concrete flow process is as follows:

B1, UE send Attach Request message (Attach Request) to the MME of evolution Packet Based Network;

B2, this MME initiate the flow process (Identity Procedure) of identification to UE;

B3, MME initiate the authorizing procedure (Authentication Procedure) to UE;

If there is the bearer context of aforementioned UE in the B4 evolution Packet Based Network, then MME initiates the flow process (Delete Bearer Procedure) of this carrying of deletion to SAE-GW;

B5, MME initiate to upgrade the position flow process to HSS or HLR, register himself to HSS/HLR, obtain the subscription data (Update Location Procedure) of this UE simultaneously;

B6, MME initiate to set up the flow process (Create Default BearerProcedure) of default bearer to SAE-GW;

B7, MME send to adhere to base station eNodeB and receive message (Attach Accept); According to preceding described, because the evolution Packet Based Network is provided to " Iu-CS " interface of circuit domain core net, at this moment, MME carries related cells in adhering in the reception message of sending, and identifies in order to " Iu-CS " interface that can be provided to circuit domain core net to the evolution Packet Based Network;

The evolution Packet Based Network is provided to the identification information of circuit domain core net " Iu-CS " interface, can directly be configured among the MME, also can be configured among HSS or the HLR; For the latter's situation, MME can obtain this identification information from HSS/HLR when obtaining the UE subscription data.In addition, with previous embodiments,, then can not discharge mobile management after finishing immediately and connect adhering to if having the ability that the evolution Packet Based Network is provided to " Iu-CS " interface of circuit domain core net;

B8, base station eNodeB receive aforesaid adhere to receive message after, and set up radio bearer (RB Establishment Procedure) between the UE;

B9, base station eNodeB and UE between radio bearer set up after, send to adhere to MME and finish message (Attach Complete);

B10, MME initiate the flow process (Update Bearer Procedure) of bearer update to SAE-GW;

B11, because in aforesaid step B7, MME receives in the message to adhering to of base station eNodeB transmission and carries the identification information that the evolution Packet Based Network is provided to " Iu-CS " interface of circuit domain core net, and this identification information can send to UE by base station eNodeB in step B8 thereafter; Therefore, UE can write down this identification information after obtaining this identification information; According to preceding described, because UE supports to be linked into circuit domain core net by the evolution Packet Based Network, therefore, can send location update request message (Location Updating Request) to this evolution Packet Based Network, for example: this location update request message is packaged as " RRC " message on " LTE_Uu " interface, and sends to base station eNodeB; Base station eNodeB then is packaged into this location update request message " S1-MME " message and sends to MME;

After B12, MME receive this location update request message, this location update request message is resolved, if when therefrom identifying the message of circuit domain core net registration, then this message is packaged into the message on " Iu-CS " interface, for example: initialization UE message (INITIAL UE MESSAGE), and send to MSC/VLR in the circuit domain core net; Set up simultaneously between MME and the MSC/VLR based on the connection (Location Updating Request) of " Iu-CS " interface;

B13, after MSC/VLR receives the message that aforementioned MME sends, can initiate to upgrade the position flow process to HLR or HSS, obtain the subscription data (Update Location Procedure) of UE;

B14, MSC/VLR will send to the position of UE and upgrade the message that reception message is packaged into " Iu-CS " interface, for example: directly transmit (DIRECT TRANSFER) message, and send to MME (LocationUpdating Accept);

B15, MME are packaged into " S1-MME " message with this message, and send to base station eNodeB after receiving the message of aforementioned MSC/VLR transmission, and base station eNodeB is packaged into " RRC " message with this message and sends to UE; After UE received this message, structure UE was at the MM of circuit domain core net context (LocationUpdating Accept);

After this, distributed new TMSI, also carried out following step if MSC/VLR is UE:

B16, B17:UE redistribute to MSC/VLR transmission TMSI by MME and finish message (TMSIReallocation Complete).

The same with previous embodiment, step B2-B5 also is optional step, and nonessential.In addition, step B13 also is an optional step.For, UE is registered to circuit domain core net by evolution packet network, and all optional steps all are abridged according to specific circumstances.For example, when preserving the relevant information of relevant UE among the MME, just can not carry out flow process in order to the identification of obtaining UE.And whether carrying out corresponding optional flow process, one of ordinary skill in the art are provided with corresponding apparatus according to its specialized technical knowledge that has.The technology contents how to be provided with is not described in detail at this.

On the basis of previous embodiment, another kind of situation about changing is: the sub-district at UE place can send broadcast, and in broadcast, carries the information that the evolution Packet Based Network is provided to circuit domain core net " Iu-CS " interface.After the UE start of supporting via evolution Packet Based Network place in circuit domain core net, then can receive this broadcast, therefore, this UE can be when the evolution Packet Based Network sends Attach Request message, carry circuit domain core net and call out required information, and indication evolution Packet Based Network replaces UE to be initiated to the register flow path of circuit domain core net.Relevant evolution Packet Based Network is provided to the information of circuit domain core net " Iu-CS " interface, can be configured in the sub-district, makes can comprise this information in broadcast.Referring to Fig. 7, concrete flow process is as follows:

C1, UE send Attach Request message to the evolution Packet Based Network, carry the indication information and/or the circuit domain core net relevant parameter (Attach Request) that carry out the circuit domain core net registration in this Attach Request message;

C2, MME initiate optional identification flow process (Identity Procedure) to UE;

C3, MME initiate the flow process (Authentication Procedure) to the authentication of UE;

If there is the bearer context of aforementioned UE in the C4 evolution Packet Based Network, then MME initiates the flow process (Delete Bearer Procedure) of this carrying of deletion to SAE-GW;

C5, MME initiate to upgrade the position flow process to HSS or HLR, register himself to HSS/HLR, obtain the subscription data (Update Location Procedure) of this UE simultaneously;

C6. owing to comprise indication and/or the circuit domain core net relevant parameter that carries out the circuit domain core net registration in the Attach Request message that UE sends, MME sends location update request message (LocationUpdating Request) to MSC/VLR, and this location update request message is packaged in " Iu-CS " interface message between MME and the MSC/VLR, for example: initialization UE message (INITIAL UE MESSAGE).

C7, MSC/VLR can be known the login request message that UE sends after receiving aforementioned " Iu-CS " message of MME transmission, after this, initiate to upgrade the position flow process to HSS or HLR, with the subscription data (Update Location Procedure) that obtains UE;

C8, MSC/VLR send " Iu-CS " message (Location Updating Accept) that has encapsulated position renewal reception message to MME;

C9, MME initiate default bearer to SAE-GW and set up flow process (Create Default BearerProcedure);

After C10, MME received that reception message is upgraded in the position among the step C8, MME sent to adhere to base station eNodeB and receives message (Attach Accept); If MME replaces UE to initiate register flow path to MSC/VLR, then this adheres to receive in the message and includes: MSC/VLR sends to the information of UE, and this information can be: Location Area Identification and/or TMSI etc.;

Set up radio bearer between C11, base station eNodeB and the UE; And, after UE receives that radio bearer is set up request message, then construct the MM context of UE at evolution packet network; If include the circuit domain core net log-on message in this message, also further construct the MM context (RB Establishment Procedure) of UE at circuit domain core net;

C12, base station eNodeB and UE between radio bearer set up after, send to adhere to MME and finish message (Attach Complete);

C13, MME initiate the flow process (Update Bearer Procedure) of bearer update to SAE-GW; Can also carry out as the optional step of the next one:

C14, MME are sent as subscriber equipment to MSC/VLR and redistribute the message (TMSIReallocation Complete) that TMSI finishes.

Need to prove: do not have inevitable precedence relationship between aforesaid step C9 and the step C6-C8, that is to say: can execution in step C9 in any moment of execution in step C6-C8; The executive condition of step C10 then must be after step C8 and C9.

In addition, the execution of abovementioned steps C6-C8 and step C9-13, the also order of not determining, that is: when beginning execution in step C6-C8, step C9-13 or begun to carry out perhaps carries out simultaneously, perhaps can any one step just carry out after beginning to carry out in step C6-C8; Otherwise when beginning execution in step C9-C13, step C6-C8 or begun to carry out perhaps carries out simultaneously, perhaps can any one step just carry out after beginning to carry out in step C9-C13.Certainly, the executive condition of abovementioned steps C10 equally must be after step C8 and C9; Perhaps, when step C6-C8 carries out, also need before step C14, increase following step after step C13:

C13a, MME are packaged into " S1-MME " message with this message, and send to base station eNodeB after receiving the message of aforementioned MSC/VLR transmission, and base station eNodeB is packaged into " RRC " message with this message and sends to UE; After UE received this message, structure UE was at the MM of circuit domain core net context (LocationUpdating Accept); Distribute new TMSI if MSC/VLR is UE, also carried out following step:

C13b, UE redistribute TMSI to the MME transmission and finish message (TMSI ReallocationComplete)

On the basis of previous embodiment, the situation of another variation is: after the UE start and searching available evolution packet network, adhere to request to this evolution Packet Based Network transmission.Because this UE supports " Iu-CS " interface that provides by packet network to be linked into circuit domain core net, therefore, this UE carries the ability support information of UE in aforesaid Attach Request message, when the MME in the evolution Packet Based Network receive that UE sends adhere to request after, when processing UE is attached to evolution packet network, as previously mentioned:, then also this UE is provided to the location registration process of MSC/VLR because this MME provides " Iu-CS " that be linked into circuit domain core net interface.Referring to Fig. 8, concrete flow process is as follows:

D1, UE send Attach Request message (Attach Request) to the MME of evolution Packet Based Network; Carry the indication information and/or the circuit domain core net relevant parameter that carry out the circuit domain core net registration in this Attach Request message;

D2, this MME initiate the flow process (Identity Procedure) of identification to UE;

D3, MME initiate the authorizing procedure (Authentication Procedure) to UE;

If there is the bearer context of aforementioned UE in the D4 evolution Packet Based Network, then MME initiates the flow process (Delete Bearer Procedure) of this carrying of deletion to SAE-GW;

D5, MME initiate to upgrade the position flow process to HSS or HLR, register himself to HSS or HLR, obtain the subscription data (Update Location Procedure) of this UE simultaneously;

D6, MME initiate to set up the flow process (Create Default BearerProcedure) of default bearer to SAE-GW;

D7, MME send to adhere to base station eNodeB and receive message (Attach Accept);

D8, base station eNodeB receive aforesaid adhere to receive message after, and set up radio bearer (RB Establishment Procedure) between the UE;

D9, base station eNodeB and UE between radio bearer set up after, send to adhere to MME and finish message (Attach Complete);

D10, MME initiate the flow process (Update Bearer Procedure) of bearer update to SAE-GW;

D11, because in aforesaid step D1, UE Attach Request message in carried the indication UE have the indication information element that is linked into the circuit domain core net ability by the evolution Packet Based Network, and MME provides " Iu-CS " interface accordingly, then when the evolution Packet Based Network was provided to " Iu-CS " interface of circuit domain core net, MME can replace UE to be initiated to the register flow path of circuit domain core net; MME at first constructs a location update request message, and this location update request message is packaged into message on " Iu-CS " interface, for example: and initialization UE message (INITIAL UE MESSAGE), and send to MSC/VLR; Set up between MME and the MSC/VLR connection (Location UpdatingRequest) simultaneously based on " Iu-CS " interface;

The evolution Packet Based Network is provided to the ability of circuit domain core net " Iu-CS " interface, can directly be configured among the MME, also can be configured among HSS or the HLR; For the latter's situation, MME can obtain this identification information from HSS/HLR when obtaining the UE subscription data;

D12, after MSC/VLR receives the message that aforementioned MME sends, can initiate to upgrade the position flow process to HLR or HSS, obtain the subscription data (Update Location Procedure) of UE;

D13, MSC/VLR will send to the position of UE and upgrade the message that reception message is packaged into " Iu-CS " interface, for example: directly transmit (DIRECT TRANSFER) message, and send to MME (LocationUpdating Accept);

D14, MME are packaged into " S1-MME " message with this message, and send to base station eNodeB after receiving the message of aforementioned MSC/VLR transmission, and base station eNodeB is packaged into " RRC " message with this message and sends to UE; After UE received this message, structure UE was at the MM of circuit domain core net context (LocationUpdating Accept);

In addition, distributed new TMSI, also carried out following step if MSC/VLR is UE:

D15, D16:UE send to MSC or VLR by MME and redistribute TMSI and finish message (TMSIReallocation Complete).

Need to prove: the execution of abovementioned steps D6-10 and D11-13, the order of determining not, that is: when beginning execution in step D6-10, step D11-13 or begun to carry out, perhaps carry out simultaneously, perhaps can in step D6-10, any one step just carry out after beginning to carry out; Otherwise when beginning execution in step D11-13, step D6-10 or begun to carry out perhaps carries out simultaneously, perhaps can any one step just carry out after beginning to carry out in step D11-13.And when step D6, D13 carried out before step D7, and step D11 carried out before step D6, and then step D14,15 can omit.

The same with previous embodiment, step D2-D5 also is optional step, and nonessential.In addition, step D12 also is an optional step.For, UE is registered to circuit domain core net by evolution packet network, and all optional steps all are abridged according to specific circumstances.For example, when preserving the relevant information of relevant UE among the MME, just can not carry out flow process in order to the identification of obtaining UE.And whether carrying out corresponding optional flow process, one of ordinary skill in the art are provided with corresponding apparatus according to its specialized technical knowledge that has.The technology contents how to be provided with is not described in detail at this.

Based on all embodiment of front, each technical scheme of the present invention has been brought following beneficial effect at least:

Provide a kind of " Iu-CS " interface that provides based on the evolution Packet Based Network to be linked under the circuit domain core planar network architecture; make UE be registered to the method for circuit domain core net; evolution Packet Based Network and traditional circuit domain core net are combined; thereby for this UE provides the basis of realizing by the framework that the evolution Packet Based Network is linked into circuit domain core net; existing investment for the operator that adequately protects; reduce the cost that operator makes up the grouping system of evolution, support is provided.

The aforesaid thinking of the present invention also goes for other mobile management flow processs in the same way; For example: the routing region updating of packet domain (Routing Area Update, be called for short: RAU) or tracking area update (Tracking Area Update, be called for short: TAU) upgrade (Location Area Update with the band of position of circuit domain core net, be called for short: LAU) flow process, can adopt independent flow process to handle.For example: when UE judge current Routing Area (Routing Area, be called for short: RA) or tracing area (Tracking Area Update is called for short: when TA) changing, then initiate the RAU/TAU flow process; If UE judges that (Location Area, be called for short: LA) change, then can be initiated to the LAU flow process of MSC or VLR, these two flow processs can be separate, is independent of each other in the current band of position.

Those of ordinary skill in the art understands, all or part of step among each embodiment of said method of the present invention, can instruct relevant hardware to realize by program, and aforesaid program can be stored in the computer read/write memory medium, for example: be stored among the storage mediums such as read-only memory (being called for short ROM), random access memory (being called for short RAM), disk, CD.

Another aspect of the present invention is to provide a kind of subscriber equipment (UE) by other embodiment, and this subscriber equipment supports among each embodiment of preceding method of the present invention, and " Iu-CS " interface by the evolution Packet Based Network is linked into circuit domain core net.Referring to Figure 10, this subscriber equipment is except that its body, also be provided with a first module 11, this first module 11 is used to obtain and write down the identification information that the evolution Packet Based Network provides connecting circuit domain core net interface, in addition, also be provided with Unit one second, this Unit second 12 is used to store the identification information that the evolution Packet Based Network provides connecting circuit domain core net interface, and to the relevant information of circuit domain core net registration; First module 11 records this information among second unit 12 after having obtained the evolution Packet Based Network identification information of connecting circuit domain core net interface is provided.The concrete steps of its function are carried out in relevant first module, Unit second, can be referring to the embodiment of preceding method of the present invention, one of ordinary skill in the art are under the instruction of aforementioned each embodiment, can realize the setting to aforementioned first module, Unit second fully, therefore the details of the relevant technology contents that is provided with does not repeat them here.

Unit 13, the three, Unit one the 3rd can also be set among the embodiment of the aforementioned subscriber equipment of the present invention be used for obtaining relevant information, send the message that is registered to circuit domain core net to the evolution Packet Based Network from second unit 12.When the evolution Packet Based Network is linked into Packet Based Network at subscriber equipment of the present invention, message according to aforementioned Unit the 3rd 13 transmissions, can be initiated to the registration operation of circuit domain core net, Unit the 3rd can send the indication information that replaces described subscriber equipment to be initiated to the circuit domain core net registration to the evolution Packet Based Network; After the evolution Packet Based Network receives this indication information, finish UE to the evolution Packet Based Network adhere to processing in, further replace this user equipment registration among circuit domain core net.

Referring to Fig. 9, Figure 10, another aspect of the present invention is by the system of a kind of user equipment registration to circuit domain core net is provided at some embodiment, this system comprises evolution Packet Based Network and/or circuit domain core net CN and HSS/HLR, and the mobile management entity MME among the evolution Packet Based Network is located among the Access Network CS that subscriber equipment adheres to; In order to carry out operation by the interface connecting circuit domain core net CN between evolution Packet Based Network and the circuit domain core net, so that can be when user equipment (UE) is attached to the evolution Packet Based Network, further the mobile management entity MME by the evolution Packet Based Network be registered to circuit domain core net CN.Should be provided for first device 21 of the configuration information of stored configuration in the evolution Packet Based Network, aforesaid configuration information is used to refer to the evolution Packet Based Network and comes connecting circuit domain core net CN by corresponding interface.Embodiment is described according to previous methods: aforesaid configuration information can be configured in the evolution Packet Based Network, therefore, also need to be provided with second device 22 in the evolution Packet Based Network, this second device 22 is used to receive configuration messages or order, stores this configuration information into first and installs among 21.Need to prove: the mobile management entity MME of evolution Packet Based Network can adopt " Iu-CS " interface based on the 3GPP standard to circuit domain core net CN, also can adopt " A " interface based on GSM standard, can adopt other can realize the interface that the evolution Packet Based Network is connected with circuit domain core net, the present invention does not limit at this yet.In addition, also need to be provided with one the 3rd device 23 in the evolution Packet Based Network, the 3rd device 23 is used for obtaining canned data from first device 21, for example: this evolution Packet Based Network can be passed through the ability information of " Iu-CS " interface connecting circuit domain core net, the TMSI information that MSC distributes etc., and can send the registration relevant information to user equipment (UE); And the log-on message that will receive from user equipment (UE) or replace the log-on message of UE assembling to send to MSC.

According to the technology contents of preceding method, because configuration information also can be configured among the HSS/HLR equipment.Therefore, aforesaid first device 21 can be set among HSS/HLR also, also should in HSS/HLR equipment, be provided with one for this reason and be used for the configuration informations of first device, 21 storages of HSS/HLR are sent to parts 43 in the evolution Packet Based Network (the 3rd device).When first device 21 was arranged on HSS/HLR, it also was used to store the CAMEL-Subscription-Information of user equipment (UE).For concrete evolution Packet Based Network, generally be that first module 21 and second device 22 are become one with mobile management entity MME, first device, 21 and second device 22 can certainly be set independently, just when they independently are provided with, should make aforesaid mobile management entity MME can visit them.

In addition, in circuit domain core net, also need to be provided with receiving element 31 and transmitting element 33, their effect is: receiving element 31 is used to receive the registration message that the mobile management entity MME of evolution Packet Based Network sends, and transmitting element 33 is used for sending to the mobile management entity MME of evolution Packet Based Network the registration message of UE.

Referring to Fig. 9, Figure 10, for can be when user equipment (UE) be attached to the evolution Packet Based Network, the evolution Packet Based Network can replace this user equipment (UE) to initiate the operation of user equipment (UE) to circuit domain core net CN registration, in the evolution Packet Based Network, also need to be provided with the 4th device 24, this four module 24 is used to store the user equipment (UE) support and is linked into the ability information of circuit domain core net CN by the evolution Packet Based Network, and the evolution Packet Based Network can be carried out the aforementioned registration operation that is initiated to circuit domain core net CN according to this user equipment (UE) of indication of this ability information.

Can indicate the evolution Packet Based Network in the lump in view of user equipment (UE) when adhering to the evolution Packet Based Network can replace this user equipment (UE) to be initiated to the registration operation of circuit domain core net CN, therefore, need one the 5th device 25 be set in the evolution Packet Based Network, the 5th module 25 is used to store the instruction that this user equipment (UE) of replacement that subscriber equipment sends is initiated to circuit domain core net CN registration, and have under " Iu-CS " interface prerequisite that is connected to circuit domain core net CN in the evolution Packet Based Network, and carry out the operation that replaces this user equipment (UE) to be initiated to circuit domain core net CN registration according to this instruction.

It should be noted that at last: above each embodiment is only in order to technical scheme of the present invention to be described but not limit the invention, although with reference to above-mentioned each embodiment main technical schemes of the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment on the technical scheme basis of aforementioned each embodiment of the present invention or be equal to replacement; And these modifications or be equal to the spirit and scope that replacement does not break away from the technical scheme that each embodiment of the present invention disclosed.

Claims

1. a method that is registered to circuit domain core net is characterized in that, comprising:

Evolved packet system receives the request of user equipment registration to circuit domain core net;

The Access Network that evolved packet system provides by mobile management entity and the interface of core net are transmitted to circuit domain core net with this request;

Circuit domain core net is finished the registration of subscriber equipment to circuit domain core net by the request of evolved packet system response subscriber equipment.

2. method according to claim 1, it is characterized in that: described evolved packet system reception user equipment registration specifically comprises to the request of circuit domain core net: described subscriber equipment is carried out the attach operation of evolved packet system, and after the notice that is registered to circuit domain core net that receives the evolved packet system transmission, send the request that is registered to circuit domain core net.

3. method according to claim 2 is characterized in that: described evolved packet system is transmitted to circuit domain core net with this request and specifically comprises by the Access Network that provides and the interface of core net:

After evolved packet system is received described request, described request package is contained in the mutual interface message of evolved packet system and circuit domain core net the operation that executing location is upgraded.

4. method according to claim 1, it is characterized in that: described evolved packet system reception user equipment registration specifically comprises to the request of circuit domain core net: described subscriber equipment is carried out the attach operation of evolved packet system, and sends the request that is registered to circuit domain core net to evolved packet system.

5. method according to claim 4 is characterized in that: described evolved packet system is transmitted to circuit domain core net with this request and specifically comprises by the Access Network that provides and the interface of core net:

6. method according to claim 1, it is characterized in that: described circuit domain core net is by the request of evolved packet system response subscriber equipment, finishing subscriber equipment specifically comprises to the registration of circuit domain core net: circuit domain core net with described request response be packaged in the mutual interface message of evolved packet system in, send to evolved packet system.

7. method according to claim 6 is characterized in that, also further comprises: after evolved packet system receives the described request response message, the base station of request response by evolution is transmitted to described subscriber equipment.

8. method according to claim 7 is characterized in that, also comprises: after described subscriber equipment is received the described request response message, carry out the operation of the MM Context that is configured in circuit domain core net.

9. method according to claim 1 and 2 is characterized in that, receives user equipment registration before the request of circuit domain core net at evolved packet system, also comprises:

Described evolved packet system sends this evolved packet system to described subscriber equipment the capability indication information that is linked into the circuit domain core network interface is provided.

10. according to claim 1 or 4 described methods, it is characterized in that, receive user equipment registration before the request of circuit domain core net, also comprise at evolved packet system:

Evolved packet system sends this evolved packet system to described subscriber equipment the capability indication information that is linked into the circuit domain core network interface is provided by cell broadcast messages.

11. method according to claim 9, it is characterized in that, send before this evolved packet system provides the capability indication information that is linked into the circuit domain core network interface to described subscriber equipment at described evolved packet system, also comprise: the identification information that described evolved packet system is provided the interface that is connected to circuit domain core net, be configured in the mobile management entity and/or home subscriber servers of evolved packet system, perhaps be configured in the attaching position register.

12. according to claim 1 or 2 or 4 described methods, it is characterized in that, in the request of circuit domain core net by evolved packet system response subscriber equipment, finish subscriber equipment after the registration of circuit domain core net, also comprise: after described subscriber equipment is reallocated Temporary Mobile Subscriber Identity, sends Temporary Mobile Subscriber Identity by evolved packet system to circuit domain core net and redistribute and finish message.

13. according to claim 1 or 2 or 4 described methods, it is characterized in that, in the request of circuit domain core net by evolved packet system response subscriber equipment, finish subscriber equipment after the registration of circuit domain core net, also comprise: the Temporary Mobile Subscriber Identity that described evolved packet system sends described subscriber equipment to circuit domain core net is redistributed and is finished message.

14. according to claim 1 or 2 or 4 described methods, it is characterized in that, receive user equipment registration after the request of circuit domain core net at evolved packet system, also comprise: described evolved packet system and subscriber equipment and mutual, identity to described subscriber equipment is discerned, and obtains the IMSI of described subscriber equipment.

15. method according to claim 14, it is characterized in that, at described evolved packet system and subscriber equipment and mutual, identity to described subscriber equipment is discerned, and obtain after the IMSI of described subscriber equipment, also comprise: described evolved packet system and described subscriber equipment and circuit domain core net carry out alternately described subscriber equipment being carried out authentication.

16. a subscriber equipment comprises the subscriber equipment body; It is characterized in that: described subscriber equipment is provided with:

First module is used to obtain the identification information that evolved packet system provides connecting circuit domain core net interface; And/or

Unit second is used to store the identification information that evolved packet system provides connecting circuit domain core net interface, and to the relevant information of circuit domain core net registration;

And/or Unit the 3rd, be used for providing the identification information of connecting circuit domain core net interface according to evolved packet system, send the message that is registered to circuit domain core net to evolved packet system.

17. a user equipment registration is characterized in that to the system of circuit domain core net, comprising:

First installs, and is used for the configuration information of stored configuration, and this configuration information is used to indicate evolved packet system to pass through corresponding interface connecting circuit domain core net;

Second device is used to receive configuration messages or order, and described configuration information is stored in described first device.

18. system according to claim 17 is characterized in that: also be provided with the 3rd device, be used for the configuration information of the first device storage is sent to evolved packet system.

19. according to claim 17 or 18 described systems, it is characterized in that: described evolved packet system also is provided with the 4th device, be used to store the subscriber equipment support and be linked into the ability information of circuit domain core net, and indicate described subscriber equipment to be initiated to the operation of circuit domain core net registration according to this ability information by evolved packet system.

20. according to claim 17 or 18 described systems, it is characterized in that: described evolved packet system also is provided with the 5th device, be used to store the user equipment requests evolved packet system and replace this subscriber equipment to initiate to be registered to the instruction of circuit domain core net, and carry out the operation that replaces described subscriber equipment to be initiated to the circuit domain core net registration according to this instruction.