CN102547651B - User roaming method and ICS (internet connection sharing) enhanced network - Google Patents
User roaming method and ICS (internet connection sharing) enhanced network Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/10—Architectures or entities
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/10—Architectures or entities
- H04L65/1063—Application servers providing network services
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/1066—Session management
- H04L65/1069—Session establishment or de-establishment
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Abstract
The invention discloses a user roaming method. A BPF (Berkeley packet filter) is added to an ICS (internet connection sharing) enhanced network. The method includes: an mAGCF (mobile access gateway control function) receives call of UE (user equipment) of non-ICS enhanced network to set up request messages and then sends conversation invitation messages to the BPF; the BPF triggers third-party service control through L-iFC (local initial filter control) and transmits the received conversation inviting messages to an L-TAS (local telephony application server); and the L-TAS triggers CS (circuit switching) service control after receiving the conversation inviting messages and serves as an agency of the UE to set up a conversation with an opposite terminal after the triggering is complete. The invention further discloses the ICS enhanced network. Accessing of the UE of the non-ICS enhanced network to the ICS enhanced network is realized, communication service for the UE of the non-ICS enhanced network is realized, and accordingly compatibility of the UE of the non-ICS enhanced network to the ICS enhanced network is further realized, and services of a CS region can be realized based on an IMS (internet protocol multimedia subsystem).
Description
Technical field
The present invention relates at IP Multimedia System (IMS, IP Multimedia Subsystem) roaming technology in the network architecture, particularly relate to a kind of user's loaming method based on IMS centralized traffic (ICS, IMS Centralized Service) and ICS enhancing network.
Background technology
Network interconnection agreement (IP, Internet Protocol) IP multimedia subsystem, IMS (IMS, IP MultimediaCore Network Subsystem) be by third generation partner program (3GPP, 3rd GenerationPartnership Project) the IP-based network architecture of one that proposes, it constructs an opening and service environment flexibly, support multimedia application, and provide abundant multimedia service for user.
IMS and access technology have nothing to do, can be GPRS (GPRS, General PacketRadio Service), WLAN (wireless local area network) (WLAN, Wireless Local Area Network) etc. grouping (PS, Packet Switching) access network provides outside business, can also be global system for mobile communications (GSM, Global System for Mobile communications), unified mobile communcations system (UMTS, UniversalMobile Telecommunications System) etc. mobile cellular network business is provided.
The mobile networks such as GSM, UMTS adopt circuit-switched technology, are called circuit (CS, CircuitSwitched) territory, can provide basic speech business for user, and based on the supplementary service of speech business.As CS territory access IMS, it develops into a kind of access way, and business provides by IMS is unified completely, and this technology is called IMS centralized traffic (ICS, IMS Centralized Service).
Fig. 1 is the Organization Chart of IMS centralized control business, as shown in Figure 1, comprise: subscriber equipment (UE, User Equipment) 101, global system for mobile communications wireless access network (UTRAN, Universal MobileTelecommunication System Radio Access Network)/GSM EDGE wireless access network (GERAN, GSM EDGE Radio Access Network) 102, server (ICSMSC Server in ICS mobile switch, ICS Mobile Switch Center Server) 103, circuit domain media gateway (CS-MGW, CS Media Gateway) 104, home subscriber server (HSS, Home Subscriber Server) 105, call conversation control function entity (CSCF, Call Session Control Function) 106 and telco application server (TAS, Telephony Application Server) 107, wherein,
UTRAN/GERAN 102, for responsible Radio Resource access control and management;
ICS MSC Server 103, except completing the access of CS subscriber equipment, mobile management, CCF, also serve as session initiation protocol (SIP, Session Initiation Protocol) user agent, realize the conversion between CS signaling and sip message, replace user to access IMS.
CS-MGW 104, provides media resource for being responsible for, and manages media resource and control;
HSS 105, for preserving the subscription data of user, for calling or session provide support.
CSCF 106 is further divided into inquiry CSCF (I-CSCF, Interrogating CSCF) and service (S-CSCF, Serving CSCF).I-CSCF and HSS carries out alternately, and request HSS distribute S-CSCF for user, or the S-CSCF residing for inquiring user; S-CSCF provides the functions such as registration, Call-Control1 for user.
TAS 107, for responsible process traditional C/S territory telephone service.
UE 101 is linked into ICS MSC Server 103 by CS control signal, ICS MSC Server serves as user agent, CS subscriber equipment 101 is replaced to access the CSCF 106 of IMS network, and set up session connection with remote subscriber, ICS MSC Server 103 control CS-MGW 104 completes the conversion between the Media Stream in CS carrying and the Media Stream in IP carrying simultaneously, sets up subscriber equipment 101 and is connected with the media between remote subscriber.
From the angle of network Development, core net finally develops into by IMS unified management, is approved by industry, and 3GPP has formulated ICS technology in version 8, strengthened by CS network insertion to IMS network by MSC Server, this is the key technology of a kind of CS network to IMS network evolution.But existing ICS technology is not considered and is reduced ICS MSC cost, existing standard is only at traditional mobile switching centre (MSC, Mobile Switch Center) basis strengthens, support that ICS business triggers, and in fact, if uniform service moves to IMS network, then ICS MSC just can simplify, to reduce core network cost.
For this reason, industry proposes a kind of ICS and strengthens the network architecture, and to weaken MSC Server function, with traditional IC S-phase ratio, solution CS network thoroughly sinks to Access Layer, and such network configuration is fairly simple, is no longer dependent on CS Core and No.7 Network.
Fig. 2 is that ICS strengthens network architecture schematic diagram, as shown in Figure 2, on the basis of structure shown in Fig. 1, comprises following newly-increased network element:
Mobile Access Gateway controlling functions entity (mAGCF, Mobile Access Gate ControlFunction) 203, distinctive points between mAGCF203 and ICS MSC Server 103 is mainly that mAGCF mainly provides the Signalling conversion between CS and SIP, no longer there is traditional C/S territory MSC Server to the access-in management of user and service control function, also eliminate and interface between conventional CS network simultaneously, intercommunication between mAGCF203 and conventional CS network is by the MGCF entity (MGCF of IMS network, Media Gate Control Function) realize.
Fig. 3 is the register flow path figure that ICS strengthens business, and as shown in Figure 3, UE is linked into IMS network by mAGCF, initiates registration in IMS network.For brevity, the flow process emphasis in Fig. 3 describes position updating process and the IMS registration process in CS territory, and have ignored safety certification process wherein.
ICS strengthens registration process and comprises the following steps:
Step 301 ~ step 302, UE initiates CS attaching process at CS access network, CS position updating request is sent to ICS MSC Server, the international mobile subscriber identity (IMSI, International Mobile Subscriber Identification Number) of UE is carried in message;
Step 303, the location update request message received is converted to SIP registration message by ICS MSC Server, user attaching domain name is obtained according to identify label IMSI, registration message is sent to UE home domain IMS network entrance network element I-CSCF, the private user identity (PVI, Private User Identity) derived according to the IMSI of UE by ICS MSC Server is carried in registration message.
Step 304, I-CSCF receives registration message, inquires about login state, carry the PVI of UE in message to HSS.HSS searches current UE login state according to the PVI of UE, if re-injection volume, then return UE with the S-CSCF address of registration, if register first, HSS selects a S-CSCF address or returns a S-CSCF capabilities list;
Step 305, if HSS returns is S-CSCF address information, then I-CSCF forwards login request message to this S-CSCF, if the S-CSCF capabilities list that HSS returns, then I-CSCF selects the S-CSCF that an ability meets, and forwards login request message to it;
Step 306, S-CSCF receives login request message, may trigger authorizing procedure, for simplicity's sake, wouldn't too much describe here;
Step 307, S-CSCF obtains customer service subscription data to HSS;
Step 308, S-CSCF returns to mAGCF the message that succeeds in registration, and carries available public subscriber identification (PUI, the Public User Identity) list of UE and default PUI in message;
Step 309, mAGCF preserves S-CFCF address and user ID list and default PUI, and is updated successfully message to UE home position;
In ICS enhancing technology, MSC function is weakened, no longer there is service processing function, only be responsible for protocol conversion and Resource Management, business triggers and controls all to focus on ownership IMS core network, and for conventional CS network roaming mechanism, Service control and triggering are by visited place MSC process, technology is strengthened like this according to existing ICS, time in the network causing legacy user to roam into describing in background technology, cannot trigger business.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of user's loaming method and ICS to strengthen network, can realize ICS and strengthen the communication service compatibility of network to other mobile network users.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of user's loaming method, is characterized in that, strengthens in network set up marginal agent functionality network element (BPF, Bounds Proxy Function) at ICS; Described method comprises:
MAGCF sends session invitation message to marginal agent functionality network element BPF after receiving the call setup request message of the UE of non-ICS enhancing network;
Described BPF controls (L-iFC by local inceptive filtering, Local Initial Filter Control) trigger third party's Service control, and received session invitation message is transmitted to local call application server (L-TAS, Local Telephony Application Server);
After the session invitation message that described L-TAS receives, circuits for triggering exchange (CS, Circuit Switching) territory Service control, and are triggering the agency as described UE successfully, set up the session with opposite end.
Preferably, described mAGCF also comprises before sending session invitation message to BPF:
Described mAGCF determines that whether described UE is registered, if registered, send session invitation message to the BPF address obtained during registration, mobile subscriber's international number (MSISDN, the Mobile Subscriber International ISDN) information of the described UE obtained when carrying registration in described session invitation message; If unregistered, refuse calling.
Preferably, described method also comprises:
Described BPF generates described L-iFC when described UE registration.
Preferably, described BPF generates described L-iFC and is specially:
Described BPF determines object L-TAS, determined object L-TAS address is set to application server in L-iFC (AS, Application Server) address parameter, and determines L-iFC business trigger event and respective logic.
Preferably, described BPF controls to be specially by local inceptive filtering:
Described BPF searches the log-on message of described UE according to the calling number in received session invitation message, and triggers third party's control according to the L-iFC in described log-on message;
Described BPF mates business trigger event and the respective logic of described L-iFC, and the L-TAS address of carrying in L-iFC during coupling forwards session invitation message.
Preferably, described method also comprises:
After described L-TAS receives session invitation message, preserve the session information in described session invitation message; Described session information comprises at least one of following information: rear subscriber number, called number, session identification, conversation media relevant information.
Preferably, described L-TAS is as the agency of described UE, and the session being established to opposite end is specially:
The new initiation session of described L-TAS, and forward described session information, the session newly initiated is associated with the session received before.
A kind of ICS strengthens network, comprises mAGCF, BPF and L-TAS; Wherein,
MAGCF, for after the call setup request message of UE receiving non-ICS enhancing network, sends session invitation message to BPF;
BPF, for triggering third party's Service control by L-iFC, and is transmitted to L-TAS by received session invitation message;
L-TAS, for after the session invitation message that receives, triggers CS Service control, and is triggering the agency as described UE successfully, the session of foundation and opposite end.
Preferably, described mAGCF determines that whether described UE is registered before sending session invitation message to BPF further, if registered, sends session invitation message to the BPF address obtained during registration, wherein, the MSISDN information of the described UE obtained when carrying registration in described session invitation message; If unregistered, refuse calling.
Preferably, described BPF, when described UE registration, generates described L-iFC, particularly, described BPF determines object L-TAS, determined object L-TAS address is set to application server AS address parameter in L-iFC, and determines L-iFC business trigger event and respective logic.
Preferably, described BPF searches the log-on message of described UE further according to the calling number in received session invitation message, and triggers third party's control according to the L-iFC in described log-on message;
Described BPF mates business trigger event and the respective logic of described L-iFC, and the L-TAS address of carrying in L-iFC during coupling forwards session invitation message.
Preferably, described L-TAS, after receiving session invitation message, preserves the session information in described session invitation message; Wherein, described session information comprises at least one of following information: rear subscriber number, called number, session identification, conversation media relevant information.
Preferably, described L-TAS is further after the success of triggering CS Service control, and new initiation session, and forward described session information, associates the session newly initiated with the session received before.
In the present invention, when non-ICS enhancing network UE roams in ICS enhancing network, because ICS strengthens network and existing mobile network and incompatible, therefore, for the UE roaming into ICS enhancing network, because UE can not be implemented to the registration that ICS strengthens network, therefore, UE also just can not enjoy the communication service that ICS enhancing network provides.The present invention, by arranging BPF, after mAGCF receives the call setup request message of the UE of non-ICS enhancing network, determines the BPF accessed immediately, and sends session invitation message to this BPF; Described BPF triggers third party's Service control by L-iFC, and received session invitation message is transmitted to L-TAS, triggers CS Service control, and triggering the agency as described UE successfully by L-TAS, sets up the session with opposite end.Like this, namely realize strengthening by ICS the UE that the non-ICS of network insertion strengthens network, realize the communication service of the UE non-ICS being strengthened to network.Present invention achieves ICS and strengthen network strengthens the UE of network compatibility to non-ICS, also can realize the business in CS territory based on IMS.
Accompanying drawing explanation
Fig. 1 is the Organization Chart of IMS centralized control business;
Fig. 2 is that ICS strengthens network architecture schematic diagram;
Fig. 3 is the register flow path figure that ICS strengthens business;
Fig. 4 is that ICS of the present invention strengthens network architecture schematic diagram;
Fig. 5 is that the traditional C/S user of the embodiment of the present invention one roams into ICS and strengthens network and rise and exhale flow chart;
Fig. 6 is that the traditional C/S user of the embodiment of the present invention two roams into ICS and strengthens network and rise and exhale flow chart;
Fig. 7 is that the traditional C/S user of the embodiment of the present invention three roams into ICS and strengthens network and rise and exhale flow chart.
Embodiment
Basic thought of the present invention is, by arranging BPF, after mAGCF receives the call setup request message of the UE of non-ICS enhancing network, determining the BPF accessed immediately, and sending session invitation message to this BPF; Described BPF triggers third party's Service control by L-iFC, and received session invitation message is transmitted to L-TAS, triggers CS Service control, and triggering the agency as described UE successfully by L-TAS, sets up the session with opposite end.
For making the object, technical solutions and advantages of the present invention clearly understand, by the following examples also with reference to accompanying drawing, the present invention is described in more detail.
Fig. 4 is that ICS of the present invention strengthens network architecture schematic diagram, as shown in Figure 4, compared with strengthening network with existing ICS, ICS of the present invention strengthens network and has increased a BPF newly, in addition, the present invention strengthens mAGCF, I-CSCF, HSS and L-TAS network element in network to ICS and has also carried out corresponding upgrading, enhances the corresponding function of these network elements, is specially:
MAGCF, for when UE adheres to, possesses the ability whether perception current UE is other network users, when find his network users roam into ICS strengthen network time, select suitable BPF to send registration request;
MAGCF is after receiving the changed course request message of I-CSCF, and mAGCF sends registration message according to redirection address in message;
MAGCF also possesses acquisition interim identity (TMSI, Temporary Mobile SubscriberIdentity) ability, when mAGCF receive carry in location update request message be temporary identity user ID time, obtain the mobile identify label IMSI in the world of UE, obtain manner comprises as under type:
A, mAGCF obtain to described UE;
B, if or mAGCF can identify described TMSI, then obtain to the mAGCF of distribution T MSI according to described TMSI, or obtained by MSC.
I-CSCF, for when receiving login request message, possess the ability whether perception current UE is other network users, when find UE for his network users roam into ICS strengthen network time, I-CSCF is rerouted to BPF or forwarding login request message to BPF by changed course request message notice mAGCF;
HSS, during for receiving I-CSCF inquiring user login state message, when judging current UE as other network users, returns the instruction that user is other network users;
BPF, there is protocol conversion capability, after receiving login request message, preserve log-on message, obtain the PVI information of the UE in login request message, and according to the PVI acquisition of information of UE the IMSI of UE, described BPF adopts MAP, send location update request message to the HLR belonging to described UE, in location update request message, carry IMSI information and the BPF address information of UE;
BPF, also for preserving user data, after receiving described insertion user data requests message, triggers third-party registration, by obtained user's signing service data retransmission to local call application server L-TAS;
BPF generates local inceptive filtering control iFC, comprises the address of L-TAS, business trigger criteria in described iFC before triggering third-party registration;
BPF also preserves the registered address of mAGCF; There is provided routing number, after the CS territory roaming number receiving UE provides request message, BPF distributes routing number or obtains routing number by L-TAS;
BPF receives setup requests, according to L-iFC, routes the call to L-TAS;
L-TAS, provides routing number, and Provide Roaming Number after request message when receiving BPF, L-TAS distributes routing number;
CS Service control, receives session invitation message, controls according to signing business trigger business.
Below in conjunction with above-mentioned network configuration, be described in further detail and the present invention is based on ICS enhancing network how to support that traditional C/S user roams.
Fig. 5 is that the traditional C/S user of the embodiment of the present invention one roams into ICS and strengthens network and rise and exhale flow chart, as shown in Figure 5, present embodiment describes traditional C/S user to roam into ICS and strengthen after network, mAGCF receives the call setup request message of UE, according to the BPF address of binding during registration, send session invitation message to BPF, BPF forwards session invitation message according to the L-iFC of this locality to L-TAS, and L-TAS carries out the judgement of CS business to the calling of user.The traditional C/S user of the present embodiment roams into ICS and strengthens network and rise and exhale flow process specifically to comprise the following steps:
Step 501 ~ step 502, tradition UE (namely non-ICS strengthens the network user) roams into ICS and strengthens network, call setup request message is sent by CS Radio Access Network, wherein, international mobile subscriber identity (IMSI, International Mobile SubscriberIdentification Number) information and the called number information of UE is carried in call setup request message;
Step 503, after mAGCF receives UE call setup request message, associate original user according to User Identity IMSI in call setup request message and adhere to information, if do not refuse the calling of UE, then notify that UE adheres to, and according to the BPF information of binding during attachment, the BPF to this binding sends session invitation message, carries the information such as the calling number of called number and user in session invitation message;
Step 504, after BPF receives session invitation message, is associated with the data field of original subscriber's registration according to the calling number in session invitation message, the L-iFC produced when obtaining user's registration information and registration, and wherein L-iFC generates and can comprise following steps:
A.BPF selects an object L-TAS according to migration efficiency, and selected object L-TAS address is set to AS address parameter in L-iFC;
B. described BPF determines L-iFC business trigger event and corresponding service logic, and the message event receiving this user is all triggered to L-TAS;
Session, according to the address AS address information in L-iFC, is forwarded to L-TAS by BPF, carries called number information and user's dialing number information in session;
Step 505, L-TAS searches the CS subscription data that described user's third-party registration obtains, search successfully, carry out Service control to the session received according to the CS subscription data of user, wherein CS subscription data comprises supplementary service before and after user, supplementary service restriction and the restricted business of operator etc.;
If user's current business meets subscription data business need, the session information that L-TAS will preserve in session invitation message, session information wherein comprises at least one of following information: rear subscriber number, called number, session identification, conversation media relevant information etc.; After having preserved session information, L-TAS is as user agent, and a new initiation session, and the session information received by forwarding, associate the session newly initiated with the session received before;
Step 506 ~ step 507, session is transmitted to BPF by L-TAS, and BPF, according to the called number in session, routes the call to called Remote and holds;
Step 508 ~ step 509, far-end Remote receives session invitation message, and accept session invitation, returns the instruction of 200OK message and accepts session, carry Remote and hold media information in session;
Step 510 ~ step 511, the 200OK information received is returned to mAGCF by L-TAS, sets up mAGCF and is connected with the IP media of far-end;
Step 512, mAGCF returns call setup response message to UE, and the media connected between UE and mAGCF connect, and mAGCF also connects UE simultaneously and is connected with the media between far-end Remote, thus time UE and far-end Remote between proper communication.
Fig. 6 is that the traditional C/S user of the embodiment of the present invention two roams into ICS and strengthens network and rise and exhale flow chart, present embodiment describes traditional C/S user to roam into ICS and strengthen after network, mAGCF receives the call setup request message of UE, according to the BPF address of binding during registration, session invitation message is sent to BPF, BPF forwards session invitation message according to the L-iFC of this locality to L-TAS, the scene of L-TAS refusal calling, the traditional C/S user of the present embodiment roams into ICS and strengthens network and rise and exhale flow process specifically to comprise the following steps:
Step 601 ~ step 604, with the step 501 ~ step 504 shown in aforementioned Fig. 5.
Step 605, L-TAS finds not this user CS subscription data, or find this user by it the business of contract limit, L-TAS returns refuse information, refuses current business, to BPF transmission SIP refuse information, carries Reason For Denial value in message;
Step 606, BPF returns refuse information to forwarding mAGCF; ;
Step 607, mAGCF returns call rejection message to UE, carries the Reason For Denial value brought from network side in message.
Fig. 7 is that the traditional C/S user of the embodiment of the present invention three roams into ICS and strengthens network and rise and exhale flow chart, present embodiment describes traditional C/S user roam into ICS strengthen network time, after mAGCF receives the call setup request message of UE, according to the BPF address of binding during registration, session invitation message is sent to BPF, BPF forwards session invitation message according to L-iFC to L-TAS, and L-TAS finds the CS subscription data of not this user, and the HLR to user attaching obtains the scene of user contracting data.The traditional C/S user of the present embodiment roams into ICS and strengthens network and rise and exhale flow process specifically to comprise the following steps:
Step 701 ~ step 704, with the step 501 ~ step 504 shown in aforementioned Fig. 5.
Step 705, after L-TAS receives session invitation message, obtains the CS subscription data of user.Concrete, the CS subscription data of user can be obtained according to the mode of following step 705a, also can obtain the CS subscription data of user according to the mode shown in following step 705b to 705d.
Step 705a, after L-TAS receives session invitation message, according to the calling number in session invitation message, do not find the CS subscription data of this user, L-TAS is according to user's calling number, and the HLR to user ascription area obtains user data, concrete, HLR to user ascription area sends the request message obtaining user data, obtains in the request message of user data and carries Subscriber Number; HLR searches user CS subscription data according to Subscriber Number after receiving the request message obtaining user data, and the subscription data of user is returned to L-TAS;
Step 705b, L-TAS send to BPF and again trigger third-party registration instruction;
After step 705c, BPF receive third-party registration instruction, judge whether this locality preserves the up-to-date CS business datum of user, if do not had, then BPF sends location update request message to the HLR of user ascription area, obtains user data information;
After the user data that the HLR that step 705d, BPF receive user ascription area returns, send third party registration messages to L-TAS, in third party registration messages, carry user CS subscription data information.
Step 706 ~ step 713, with the step 505 ~ step 512 shown in aforementioned Fig. 5, concrete executive mode, see described in above, repeats no more here.
The above, be only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention.
Claims (13)
1. user's loaming method, is characterized in that, strengthens in network set up marginal agent functionality network element BPF at IMS centralized traffic ICS; Described method comprises:
Mobile Access Gateway controlling functions entity mAGCF sends session invitation message to BPF after receiving the call setup request message of the user equipment (UE) of non-ICS enhancing network;
Described BPF triggers third party's Service control by local inceptive filtering control L-iFC, and received session invitation message is transmitted to local call application server L-TAS;
After described L-TAS receives session invitation message, circuits for triggering switching domain CS Service control, and triggering the agency as described UE successfully, set up the session with opposite end.
2. method according to claim 1, is characterized in that, described mAGCF also comprises before sending session invitation message to BPF:
Described mAGCF determines that whether described UE is registered, if registered, sends session invitation message, mobile subscriber's international number MSISDN information of the described UE obtained when carrying registration in described session invitation message to the BPF address obtained during registration; If unregistered, refuse calling.
3. method according to claim 1, is characterized in that, described method also comprises:
Described BPF generates described L-iFC when described UE registration.
4. method according to claim 3, is characterized in that, described BPF generates described L-iFC and is specially:
Described BPF determines object L-TAS, determined object L-TAS address is set to application server AS address parameter in L-iFC, and determines L-iFC business trigger event and respective logic.
5. method according to claim 3, is characterized in that, described BPF controls to be specially by local inceptive filtering:
Described BPF searches the log-on message of described UE according to the calling number in received session invitation message, and triggers third party's control according to the L-iFC in described log-on message;
Described BPF mates business trigger event and the respective logic of described L-iFC, and the L-TAS address of carrying in L-iFC during coupling forwards session invitation message.
6. method according to claim 1, is characterized in that, described method also comprises:
After described L-TAS receives session invitation message, preserve the session information in described session invitation message; Described session information comprises at least one of following information: rear subscriber number, called number, session identification, conversation media relevant information.
7. method according to claim 6, is characterized in that, described L-TAS is as the agency of described UE, and the session being established to opposite end is specially:
The new initiation session of described L-TAS, and forward described session information, the session newly initiated is associated with the session received before.
8. ICS strengthens a network, it is characterized in that, described IMS centralized traffic ICS strengthens network and comprises Mobile Access Gateway controlling functions entity mAGCF, marginal agent functionality network element BPF and local call application server L-TAS; Wherein,
Mobile Access Gateway controlling functions entity mAGCF, for after the call setup request message of UE receiving non-IMS centralized traffic ICS enhancing network, sends session invitation message to marginal agent functionality network element BPF;
Limit agent functionality network element BPF, for triggering third party's Service control by local inceptive filtering control L-iFC, and is transmitted to local call application server L-TAS by received session invitation message;
Local call application server L-TAS, after receiving session invitation message, triggers CS Service control, and is triggering the agency as described UE successfully, sets up the session with opposite end.
9. ICS according to claim 8 strengthens network, it is characterized in that, before described mAGCF sends session invitation message to BPF, determine that whether described UE is registered further, if registered, send session invitation message to the BPF address obtained during registration, wherein, the MSISDN information of the described UE obtained when carrying registration in described session invitation message; If unregistered, refuse calling.
10. ICS according to claim 8 strengthens network, it is characterized in that, described BPF is when described UE registration, generate described L-iFC, particularly, described BPF determines object L-TAS, determined object L-TAS address is set to application server AS address parameter in L-iFC, and determines L-iFC business trigger event and respective logic.
11. ICS according to claim 10 strengthen network, and it is characterized in that, described BPF searches the log-on message of described UE further according to the calling number in received session invitation message, and trigger third party's control according to the L-iFC in described log-on message;
Described BPF mates business trigger event and the respective logic of described L-iFC, and the L-TAS address of carrying in L-iFC during coupling forwards session invitation message.
12. ICS according to claim 8 strengthen network, and it is characterized in that, described L-TAS, after receiving session invitation message, preserves the session information in described session invitation message; Wherein, described session information comprises at least one of following information: rear subscriber number, called number, session identification, conversation media relevant information.
13. ICS according to claim 12 strengthen networks, it is characterized in that, described L-TAS is further after the success of triggering CS Service control, and new initiation session, and forward described session information, associates the session newly initiated with the session received before.
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| CN201010588260.7A CN102547651B (en) | 2010-12-14 | 2010-12-14 | User roaming method and ICS (internet connection sharing) enhanced network |
| PCT/CN2011/082892 WO2012079451A1 (en) | 2010-12-14 | 2011-11-24 | User roaming method and ics enhanced network |
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| CN102595372B (en) * | 2011-01-14 | 2018-05-22 | 中兴通讯股份有限公司 | User's loaming method and ICS enhancing networks |
| WO2019049052A1 (en) * | 2017-09-08 | 2019-03-14 | Reliance Jio Infocomm Limited | A system and method for availing a data service by a user equipment |
| CN112187615B (en) * | 2020-08-31 | 2022-11-08 | Oppo（重庆）智能科技有限公司 | Message response method, device, terminal and storage medium |
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| WO2008022647A1 (en) * | 2006-08-23 | 2008-02-28 | Telefonaktiebolaget Lm Ericsson (Publ) | Method for registering in an ims domain a non-ims user device |
| CN101102608B (en) * | 2007-08-08 | 2012-02-29 | 中兴通讯股份有限公司 | A method for realizing central server call in IP multimedia subsystem |
| CN101132555B (en) * | 2007-09-24 | 2011-05-25 | 中兴通讯股份有限公司 | Method for non-IMS centralized business user obtaining roaming number |
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