CN102404233B - Method for controlling routing query of IMS user and IMS network - Google Patents
Method for controlling routing query of IMS user and IMS network Download PDFInfo
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Abstract
The invention discloses a method for controlling the routing query of IMS (IP Multimedia Subsystem) user and an IMS network. The method comprises the following steps: a user signs primary service of operators on MMTel AS, judges whether CIC parameter is added to the configuration number prefix, and judges whether the CIC parameter configured on the SCSCF (Servicing-CSCF) inquires ENUM(Telephone Number Mapping); a fixed network user initiates a call, and the call is triggered to the MMTel AS through the SCSCF; the MMTel AS judges whether to add the CIC parameter according to the prefix of the called number; the calling message is transmitted to the SCSCF; the SCSCF determines whether to inquire ENUM according to whether the CIC parameter is added to calling message, if the configuration is not to inquire the ENUM, the SCSCF directly quits the calling routing out of the IMS area and continues the calling through a traditional fixed network; if the configuration inquires the ENUM, the SCSCF determines the final call continuing router according to the query result of the ENUM. The invention realizes different routing queries according to the different IMS users who access through AGCF (Access Gateway Control Function) and P-CSCF (Proxy-CSCF).
Description
Technical field
The present invention relates to a kind of method and IMS network of the IMS of control user routing inquiry.
Background technology
In IMS, access different users from P-CSCF and AGCF respectively, and the business difference that these users realize, the user of AGCF access need to complete fixed network transformation, thereby need to inherit the business of original PSTN, there is no multimedia business, thereby route can carry out intercommunication by MGCF and PSTN, inherit the route principle of original PSTN; And P-CSCF is mainly the multimedia user of access, need to carry out intercommunication according to the standard of IMS.And in IMS, the function of finding route is that S-CSCF completes, can only find route according to called number, can not distinguish source according to IMS user's source, can not distinguish according to dissimilar caller IMS user the direction of called number analysis route.
The commercial initial stage of each province IMS examination because of not reciprocity, the commercial deployment of each province IMS network in the factor such as route route diversion, network performance consumption, the IMS user who changes for fixed network net needs to determine according to IMS user's source whether the called prefix of dialing is inquired about ENUM, adopted different outgoing route schemes more stage by stage according to the progress of each local network and each province IMS commercialization inside the province.For the media user accessing by P-CSCF, the interworking standard that need to formulate IMS according to China Telecom carries out intercommunication.
(1) using family instead by the net of AGCF and P-CSCF access, to work the route need of exhaling be (explanation as an example of Quanzhou, Fujian IMS commercialization example):
1) first stage only has Quanzhou net to use family access IMS instead
Quanzhou IMS user rises to exhale and dials Quanzhou landline telephone (0595 dialing 0595) and will inquire about ENUM, and such user dials other numbers all need not inquire about ENUM.
2) in second stage Fujian Province, the net of other local networks is used family access IMS instead
Quanzhou IMS user rise exhale dial the landline telephone (0595 dialing 0591～0599) of other local networks in Fujian Province will be by the specification recursive query ENUM of group, such user dials other numbers need not inquire about ENUM.
3) phase III other provinces IMS has built and is commercial
Quanzhou IMS user rise exhale dial the inter-provincial fixed line that landline telephone in Fujian Province (0595 dialing 0591～0599) and IMS are commercial will be by the specification recursive query ENUM of group, such user dials other numbers all need not inquire about ENUM.
4) fourth stage is opened the multimedia service based on C network No. code on IMS
Quanzhou IMS user rise exhale dial the number of telecommunications C net all will be by the specification recursive query ENUM of group, such user dials other numbers all need not inquire about ENUM.
(2) media user of P-CSCF access works the route need of exhaling:
The standard that the IMS media user accessing by P-CSCF is formulated according to China Telecom is walked standard call flow process inquiry EUNM/DNS, without particular/special requirement.
Summary of the invention
Abbreviation
IMS:IP Multimedia SubsystemIP, IP multimedia subsystem, IMS
AGCF:Access Gateway Control Function, AGCF
CSCF:Call Session Control Function, CSCF
DNS:Domain Name System, domain name system
ENUM:Telephone Number Mapping, telephone number mapping
HSS:Home Subscriber Server, home subscriber server
I-CSCF:Interrogating-CSCF, inquiry-CSCF
MGCF:Media Gateway Control Function, MGCF
P-CSCF:Proxy-CSCF, agency-CSCF
PSTN:Public Switched Telephone Network, public switch telephone network
S-CSCF:Serving-CSCF, service-SCSCF
IM-SSF:IP Multimedia Service Switching Function, IP Multimedia Service Switching Function
SIP:Session Initiation Protocol, Session initiation Protocol
In view of more than, the present invention proposes a kind of method and IMS network of the IMS of control user routing inquiry.
The present invention proposes a kind of method of the IMS of control user routing inquiry, comprising:
In user data on mediaphone application server MMTel AS network element, whether confirm caller IMS user's type according to the configuration of operator's pre-selection parameter, and configuration called number prefix whether to add Carrier Identification Code CIC parameter, on service call conversation control function S-CSCF network element configuration carried CIC parameter IMS call out whether want enquiring telephone number shine upon ENUM;
Caller IMS user make a call, and calls out and be triggered to MMTel AS network element by S-CSCF network element;
Whether MMTel AS network element adds CIC parameter according to the whether signing operator of caller IMS user preliminary election business, called number prefix, determines whether message related to calls is passed through to S-CSCF network element will add CIC parameter;
Whether S-CSCF network element adds CIC parameter according to message related to calls determines whether to inquire about ENUM, if be configured to not inquire about ENUM, S-CSCF network element directly goes out call routing IMS territory and continues to calling out by traditional fixed network network; If there is configuration querying ENUM, S-CSCF network element is determined final call proceeding route according to the Query Result of ENUM again;
Wherein, the different called numbers that utilize the combination of above different pieces of information configuration to dial according to different caller IMS users are selected different call proceeding routes.
The present invention proposes a kind of IMS network of the IMS of control user routing inquiry, comprising:
Mediaphone application server MMTel AS network element, whether confirm caller IMS user's type according to the configuration of operator's pre-selection parameter, and whether configuration called number prefix will add Carrier Identification Code CIC parameter, receive the calling that service call conversation control function S-CSCF network element triggers, judge whether to add CIC parameter according to called number prefix, message related to calls is passed through to S-CSCF network element;
S-CSCF network element network element, the IMS that CIC parameter has been carried in configuration calls out whether will inquire about ENUM, receives caller IMS user's calling, and is triggered to MMTel AS network element; Receive the message related to calls of MMTel AS network element transparent transmission, whether add CIC parameter according to message related to calls and determine whether to want enquiring telephone number mapping ENUM, if be configured to not inquire about ENUM, directly call routing gone out to IMS territory and continue to calling out by traditional fixed network network; If there is configuration querying ENUM, determine final call proceeding route according to the Query Result of ENUM;
Wherein, the different called numbers that utilize the combination of above different pieces of information configuration to dial according to different caller IMS users are selected different call proceeding routes.
The present invention is to realizing different routing inquiries by the IMS user of AGCF and P-CSCF access.IMS user only need to directly dial called number, and dialing is experienced constant.
Brief description of the drawings
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms a part of the present invention, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 illustrates the method for a kind of IMS of control user routing inquiry that the present invention proposes.
Fig. 2 is also other local networks inside the province of commercialization or outside the province fixed network user's flow chart of IMS user's call IMS network.
Fig. 3 is commercial other local networks inside the province of IMS user's call IMS network or fixed network user's flow chart outside the province.
Fig. 4 is the flow chart that IMS user calls out special clothes, mobile phone or international member.
Figure 5 shows that Quanzhou and Foochow user call out the ENUM/DNS flow process in Ben great district separately.
Figure 6 shows that Quanzhou user calls out Foochow user ENUM/DNS flow process and sees.
Figure 7 shows that Quanzhou user calls out Xiamen user ENUM/DNS mesh network querying flow.
Figure 8 shows that Quanzhou user calls out outside the province user ENUM/DNS flow process (use when test, when commercial need not).
Embodiment
The object of this invention is to provide a kind of method of the IMS of control user routing inquiry.Wherein, CIC parameter is Carrier Identification Code, in external use procedure, and the operator Client-initiated call routing of different operators being belonged to user according to this parameter.In the present invention, utilize CIC parameter can distinguish according to dissimilar IMS user the principle of routing addressing, can use CIC parameter for the different callings of dissimilar IMS Client-initiated (being the data configuration of called prefix) differentiation inquiry ENUM, to determine called final analysis route.
Fig. 1 illustrates the method for a kind of IMS of control user routing inquiry that the present invention proposes, and comprises the following steps:
In step 101, user data on MMTel AS, whether confirm caller IMS user's type according to the configuration of operator's pre-selection parameter, and whether configuration called number prefix to add CIC parameter.Whether the calling that CIC parameter has been carried in configuration on SCSCF will inquire about ENUM.The different called numbers that utilize the combination of above different pieces of information configuration to dial according to different calling subscribers are selected different call proceeding routes.
Make a call by AGCF network element or PCSCF network element step 102, caller IMS user, call out and be triggered to MMTel AS by S-CSCF, MMTel AS judges whether user has signing operator preliminary election business.
If have the operator of interpolation preliminary election business step 103, caller IMS user, MMTel AS judges whether to add CIC parameter according to called number prefix again.Just directly message related to calls is passed through to SCSCF if configuration is not added, if having configuration add CIC parameter add in will the routing inquiry instruction in the INVITE of calling out on corresponding CIC parameter.
In step 104, whether SCSCF adds CIC parameter according to message related to calls determines whether called number will inquire about ENUM, if be configured to not inquire about ENUM, SCSCF directly goes out IMS network by calling by MGCF route according to the routing mechanism of IMS.If be configured to inquire about ENUM, SCSCF determines called subscriber's the route that continues again according to the Query Result of ENUM.
Wherein:
The whether signing operator of MMTEL AS network element configuration user preliminary election business, and whether corresponding called prefix configuration is added to CIC parameter.If the corresponding called prefix configuration of the called number that the user of signing operator preliminary election business dials will be added CIC parameter, when that makes a call, MMTEL AS will carry CIC parameter to SCSCF, according to the calling of having carried CIC parameter, whether configuration querying ENUM determines final call routing to SCSCF network element again, if just not inquiring about directly route, configuration goes out IMS, if configuration querying is just carried out routing keeping according to the result of inquiry.For example: Quanzhou IMS user A dials the user of a Pekinese 010, and (called subscriber is IMS user not necessarily, likely leading traditional fixed network user), if user A has signing operator preliminary election business and called IMS called prefix to be configured to carry CIC parameter, that MMTEL AS issues the message related to calls of SCSCF network element will carry CIC parameter, then SCSCF network element is again according to whether configuration querying ENUM of entrained CIC parameter, if configuration querying, and on the ENUM in Quanzhou, there are the NS record data of configuration 8610, the IMS network element in that Quanzhou will go to look into the ENUM of Pekinese by NS record data recurrence, if Beijing ENUM inquires called party data, Quanzhou IMS will be routed directly to the IMS of Pekinese by IMS inter-domain routing by calling according to the result of inquiry and remove continuing called subscriber, if Beijing ENUM inquires about less than called party data, Quanzhou IMS just goes out call routing IMS territory, continues called by traditional PSTN toll network.If entrained not configuration querying of CIC parameter ENUM, this calling just directly route goes out IMS territory, walks legacy network this calling that continues.IMS has relevant specification, if do not inquire about ENUM, SCSCF network element will support acquiescence that calling is gone out to IMS territory by MGCF network element route., just can carry CIC parameter at the prefix of the MMTEL of Quanzhou IMS AS network element configuration 010, and carry CIC parameter in SCSCF configuration and do not inquire about ENUM also not before commercialization at Beijing IMS network; After the formal commercialization of Beijing IMS, just 010 prefix of MMTEL AS can be configured to not carry CIC parameter.
In above-mentioned steps 104, inquire IMS route, the flow process communicating by IMS network can comprise the following steps:
AGCF/P-CSCF user makes a call.
AGCF/P-CSCF user initiates a session request message to S-CSCF.
Before S-CFCF basis, user registers data and the iFC triggering calling service of rear download.
After calling service has triggered, inquiry ENUM/DNS, obtains callee side IMS entrance I-CSCF.
Calling Side S-CSCF is forwarded to I-CSCF by call request after inquiring callee side IMS entrance I-CSCF.
CSCF receives after call request, inquires about local SLF network element, is redirected to user attaching HSS.
Return to the position of the HSS of user attaching according to SLF, I-CSCF is redirected to user attaching HSS, from user attaching HSS, and inquiring user ownership S-CSCF host name.
I-CSCF arrives called S-CSCF according to Query Result forwarded call request.
Callee side S-CSCF carries out called logical, triggers called service.
Be finished after called service, retained user entry AGCF/P-CSCF address due to user while registration in S-CSCF, S-CSCF is forwarded to AGCF/P-CSCF call request.
AGCF/P-CSCF continuing called subscriber.
In the present invention, ENUM/DNS is a network element with ENUM and DNS function, and the networking of ENUM/DNS secondary can adopt recursive query pattern and iterative query pattern.ENUM/DNS networking adopts mesh network query pattern, inter-provincial employing recursive query pattern inside the province.
It is all three kinds of different modes of IMS networking inquiry ENUM that recursive query pattern, iterative query mould and mesh network are inquired about these three kinds, and the networking of ENUM/DNS secondary has recursive query pattern and iterative query pattern, inter-provincial employing recursive query pattern.ENUM/DNS networking in Fujian Province at present, ENUM inquiry adopts mesh network, and DNS inquiry adopts subregion inquiry, and each great Qu accesses the DNS in own great Qu.
Recursive query is modal inquiry mode, the client computer (subordinate's dns server) that domain name server (DNS) is filed a request replacement is carried out inquiry of the domain name, if name server can not directly be answered, each branch that name server can be in the each tree in territory carries out recursive query up and down, return to the most at last Query Result to client computer, during name server inquiry, client computer will be completely in wait state.
The iterative query guide of weighing again, in the time that using iterative query, server can make other servers (DNS) return to best query point prompting or a host address, if comprise the host address of needs inquiry in this best query point, return to host address information, if now server can not directly inquire host address, to inquire about successively according to the guide of prompting, until the host address that comprises required inquiry in the prompting that server provides, general, each guide all can more close root server (upwards), search after root name server, can again search downwards according to prompting.
A kind of IMS network of controlling IMS user's routing inquiry that the present invention proposes, its networking signal refers to Fig. 2～Fig. 4.IMS network comprises the AS network elements such as MMTel AS network element, SCSCF and SSF.The AS nets such as SSF, for the iFC priority of the signing AS of user's Calling Side, lower than MMTel AS, the AS network elements such as SSF need be supported the CIC parameter in transparent transmission Request-URI.In 3GPP TS24.229 standard, specify that AS in IMS territory will support transparent transmission and the incoherent header field of this AS, message body, parameter (Request-URI).
MMTel AS network element, for the signing operator of user preliminary election business, and whether configuration called number prefix will add CIC parameter, receive the calling that SCSCF triggers, judge whether to add CIC parameter according to the whether signing operator's preliminary election business of caller IMS user and called number prefix, then determine to send to the calling INVITE of SCSCF network element whether to add CIC parameter.
SCSCF network element, the IMS that CIC parameter has been carried in configuration calls out whether will inquire about ENUM, then determines final call routing according to the Query Result of ENUM.SCSCF network element receives fixed network net and changes the calling of IMS Client-initiated, and is triggered to MMTel AS; Receive MMTel AS network element transparent transmission message related to calls, whether add CIC parameter according to message related to calls and determine whether to inquire about ENUM, if be configured to not inquire about ENUM, just direct calling route gone out to IMS territory, pass through traditional fixed network routing keeping; If there is configuration querying ENUM, then determine final call routing according to the Query Result of ENUM.
MMTel AS data configuration, uses the family operator's business in advance of need contracting instead for IMS net, for IMS network also not the fixed line prefix in commercial strange land be configured to carry CIC parameter.Such user's call IMS network is in construction but not when the fixed telephone user in real commercial strange land, and calling will be transferred by traditional toll network.The media user accessing by P-CSCF is without signing operator preliminary election business.Caller iFC business for priority lower than MMTel AS, needs the CIC parameter in transparent transmission Request-URI.
S-CSCF data configuration, does not inquire about ENUM for the calling of having carried CIC parameter.There is no commercial province at IMS network, when inquiry ENUM, only inquire about local EUNM, not recursive query higher level ENUM.In order follow-up route not to be impacted, S-CSCF need to configuration delete CIC parameter before transmission message is to MGCF.
In the present invention, fixed network net is used family instead and is referred to that changing light into from traditional fixed network switch accesses (being the up user of EPON or GPON), i.e. light entering and copper back user, the accessible IMS of these users or SS.In brief, net is used family instead and is referred to from conventional switch by the up cutover of EPON/GPON to the fixed network user of IMS.
ENUM is telephone number mappings work group (the Telephone Number Mapping working group of IETF, be called for short ENUM) definition an agreement-RFC2916, the exercise question of RFC2916 is " E.164 number and domain name system (E.164Number and DNS) ".It has defined number translated is E.164 that domain name form is placed on the method in the database of dns server, each can corresponding a series of unified resource mark (Uniform Resource Identifier) by domain name that E.164 number is transformed, thereby make the E.164 telephone number of international uniform become the network address resources that can use in the Internet.ENUM can utilize telephone number to search the much informations such as the Email of registrant (Registrant), IP phone number, unified message, Fax over IP or About You.E.164 number is the valuable source using in conventional telecommunication network, DNS system is the important foundation of the Internet, ENUM combines both, is of value to conventional telecommunications service to the future development based on IP packet switch, and ENUM is to promoting the significant technology of the final fusion of two nets.
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with specific embodiment, and with reference to accompanying drawing, the present invention is described in more detail.
Fig. 2 is also other local networks inside the province of commercialization or outside the province fixed network user's flow chart of IMS user's call IMS network.Using calling Foochow, family fixed telephone user instead taking Quanzhou IMS net below describes as example (Foochow IMS does not also have commercialization).
1, IMS net is used family instead and is made a call by AGCF network element, calls out and is triggered to S-CSCF.
2, user's signing the highest MMTel AS IFC business of priority on HSS, is first triggered to MMTel AS by S-CSCF, and MMTel AS triggers user's caller supplementary service or carries out regular to called subscriber.MMTel AS network element judges that caller net uses the signing operator in family preliminary election business instead, called Foochow prefix 86591 is specified increases CIC parameter, CIC parameter is added in the Request-URI territory of rising in the INVITE of exhaling user, again INVITE is transmitted to S-SCSCF afterwards.
3, S-CSCF network element is not inquired about ENUM according to the CIC parameter judgement in Request-URI territory, just directly according to prefix 86591 route that configures, calling is gone out in IMS territory by MGCF route.Follow-up routing keeping slightly.
After the IMS commercialization of Foochow, MMTel AS network element need be configured to not increase CIC parameter by 86591 prefixes, that Quanzhou IMS user dials Foochow user need be by the specification recursive query ENUM of group, determines last call proceeding route more afterwards according to the Query Result of ENUM (be whether called IMS user).
Fig. 3 is commercial other local networks inside the province of IMS user's call IMS network or fixed network user's flow chart outside the province.Using calling Quanzhou, family user instead taking Quanzhou IMS net below describes as example.Quanzhou IMS net uses that other local networks are called out inside the province at family or fixed network user's flow process is except ENUM wants recursive query outside the province instead, and other flow processs are identical.
1, IMS net is used family instead and is made a call by AGCF network element, calls out and is triggered to S-CSCF.
2, user's signing the highest MMTel AS IFC business of priority on HSS, is first triggered to MMTel AS by S-CSCF, and MMTel AS triggers user's caller supplementary service or carries out regular to called subscriber.MMTel AS network element judges that caller net uses the signing operator in family preliminary election business instead, but called Quanzhou prefix do not specify and will increase CIC parameter, rises in exhaling INVITE and does not add CIC parameter the user who issues S-CSCF.
3, S-CSCF network element first judges that the Request-URI territory in INVITE do not carry CIC parameter, judge that again prefix 86595 has configuration querying ENUM, continue to called according to the Query Result of ENUM, if be the overseas fixed network user of IMS called, SCSCF need will call out to go out in IMS territory by MGCF route.Follow-up routing keeping slightly.
Fig. 4 is the flow chart that IMS user calls out special clothes, mobile phone or international member.
1, on MMTel AS network element, need that spy is taken to prefix, mobile phone prefix or international prefix and be configured to not add CIC parameter.In the time that IMS user calls out this few class user, MMTel AS network element is transmitted in the INVITE of S-CSCF network element and does not add CIC parameter.
2, S-CSCF network element judges that spy takes prefix, mobile phone prefix, international prefix and is configured to not inquire about ENUM, directly calling is gone out to IMS territory by MGCF route.
Below by drawings and Examples, query script of the present invention is described.The networking of ENUM/DNS secondary can adopt recursive query pattern and iterative query pattern.Following networking is that ENUM/DNS networking inside the province adopts mesh network query pattern, inter-provincial employing recursive query pattern.
Figure 5 shows that Quanzhou and Foochow user call out the ENUM/DNS flow process in Ben great district separately.
1) Foochow/Quanzhou S-CSCF sends NAPTR inquiry request to ENUM/DNS server separately.2) Foochow/Quanzhou ENUM/DNS server lookup success, returns to Foochow/Quanzhou S-CSCF by Query Result.
Figure 6 shows that Quanzhou user calls out Foochow user ENUM/DNS flow process and sees.
1) to Quanzhou, three grades of ENUM/DNS servers send NAPTR inquiry request to Quanzhou S-CSCF.2) the ENUM/DNS server lookup failure of three grades, Quanzhou, according to secondary Foochow ENUM/DNS address information of this locality storage, sends NAPTR inquiry request to secondary Foochow ENUM/DNS server.3) ENUM/DNS server in secondary Foochow is according to NS record (the name server record of this locality storage, be used for specifying this domain name by which dns server to be resolved), secondary Foochow ENUM/DNS server returns the result to three grades, Quanzhou ENUM/DNS server.4) Query Result is returned to S-CSCF by three grades, Quanzhou ENUM/DNS server.
Figure 7 shows that Quanzhou user calls out Xiamen user ENUM/DNS mesh network querying flow.
1) to Quanzhou, three grades of ENUM/DNS servers send NAPTR inquiry request to Quanzhou S-CSCF.2) three grades, Quanzhou ENUM/DNS is according to the Xiamen ENUM/DNS address information of this locality storage, and to Xiamen, three grades of ENUM/DNS servers send NAPTR inquiry request.3) three grades, Xiamen ENUM/DNS server return Query Result to Quanzhou three grades of ENUM/DNS servers.4) Query Result is returned to S-CSCF by three grades, Quanzhou ENUM/DNS server.
Figure 8 shows that Quanzhou user calls out outside the province user ENUM/DNS flow process (use when test, when commercial need not).
1) Quanzhou S-CSCF sends NAPTR inquiry request to Quanzhou ENUM/DNS server.2) Quanzhou ENUM/DNS server lookup failure, according to Foochow ENUM/DNS address information of this locality storage, sends NAPTR inquiry request to Foochow ENUM/DNS server.3) Foochow ENUM/DNS server lookup failure, according to the ENUM/DNS of the group address information of this locality storage, sends NAPTR inquiry request to the ENUM/DNS of group server.4) ENUM/DNS of group server, according to the NS record of this locality storage, judges that this number section user correspondence is attributed to Jiangsu, therefore sends NAPTR inquiry request to Jiangsu ENUM/DNS server.5) ENUM/DNS server in Jiangsu returns to Query Result to the ENUM/DNS of group server.6) ENUM/DNS of group server returns to Query Result to Foochow ENUM/DNS server.7) ENUM/DNS server in Foochow returns the result to Quanzhou ENUM/DNS server.8) Query Result is returned to S-CSCF by ENUM/DNS server in Quanzhou.
The present invention is to realizing different method for searching route by the dissimilar IMS user of AGCF and P-CSCF access.IMS user only need to directly dial called number, and dialing is experienced constant.
Claims (10)
1. a method of controlling IMS user's routing inquiry, comprising:
In user data on mediaphone application server MMTel AS network element, whether confirm caller IMS user's type according to the configuration of operator's pre-selection parameter, and configuration called number prefix whether to add Carrier Identification Code CIC parameter, on service call conversation control function S-CSCF network element configuration carried CIC parameter IMS call out whether want enquiring telephone number shine upon ENUM;
Caller IMS user make a call, and calls out and be triggered to MMTel AS network element by S-CSCF network element;
Whether MMTel AS network element adds CIC parameter according to the whether signing operator of caller IMS user preliminary election business, called number prefix, determines whether message related to calls is passed through to S-CSCF network element will add CIC parameter;
Whether S-CSCF network element adds CIC parameter according to message related to calls determines whether to inquire about ENUM, if be configured to not inquire about ENUM, S-CSCF network element directly goes out call routing IMS territory and continues to calling out by traditional fixed network network; If there is configuration querying ENUM, S-CSCF network element is determined final call proceeding route according to the Query Result of ENUM again;
Wherein, the different called numbers that utilize the combination of above different pieces of information configuration to dial according to different caller IMS users are selected different call proceeding routes.
2. control according to claim 1 the method for IMS user's routing inquiry, if there is configuration querying ENUM, S-CSCF network element is determined final call proceeding route according to the Query Result of ENUM again, wherein:
If configuration querying ENUM, and have the called name server NS record data of configuration on the ENUM of caller, the IMS network element of caller is by name server record data recurrence or iterate to called ENUM and go to look into, then is routed to called IMS and removes continuing called subscriber.
3. according to the method for controlling IMS user's routing inquiry described in claim 1 or 2, whether add CIC parameter according to called number prefix, determine that whether message related to calls is passed through to S-CSCF network element will add CIC parameter, comprising:
If added, described MMTel AS network element rises in the routing inquiry instruction in the INVITE of exhaling and increases CIC parameter user.
4. control according to claim 3 the method for IMS user's routing inquiry, if be configured to not inquire about ENUM, S-CSCF network element directly goes out call routing IMS territory and continues to calling out by traditional fixed network network, comprising:
Calling is gone out to IMS territory by MGCF MGCF route, and CIC parameter is deleted in the configuration before transmission INVITE is to MGCF of described S-CSCF network element.
5. according to the method for controlling IMS user's routing inquiry described in claim 1 or 2, if there is configuration querying ENUM, comprising:
There is no commercial province at IMS network, only inquire about local ENUM, not recursive query higher level ENUM.
6. an IMS network of controlling IMS user's routing inquiry, comprising:
Mediaphone application server MMTel AS network element, whether confirm caller IMS user's type according to the configuration of operator's pre-selection parameter, and whether configuration called number prefix will add Carrier Identification Code CIC parameter, receive the calling that service call conversation control function S-CSCF network element triggers, judge whether to add CIC parameter according to called number prefix, message related to calls is passed through to S-CSCF network element;
S-CSCF network element, the IMS that CIC parameter has been carried in configuration calls out whether will inquire about ENUM, receives caller IMS user's calling, and is triggered to MMTel AS network element; Receive the message related to calls of MMTel AS network element transparent transmission, whether add CIC parameter according to message related to calls and determine whether to want enquiring telephone number mapping ENUM, if be configured to not inquire about ENUM, directly call routing gone out to IMS territory and continue to calling out by traditional fixed network network; If there is configuration querying ENUM, determine final call proceeding route according to the Query Result of ENUM;
Wherein, the different called numbers that utilize the combination of above different pieces of information configuration to dial according to different caller IMS users are selected different call proceeding routes.
7. control according to claim 6 the IMS network of IMS user's routing inquiry, wherein, described S-CSCF network element is at configuration querying ENUM, and on the ENUM of caller, have while configuring called name server NS record data, by name server record data recurrence or iterate to called ENUM and go to look into, then be routed to called IMS and remove continuing called subscriber.
8. according to the IMS network of controlling IMS user's routing inquiry described in claim 6 or 7, wherein, described MMTel AS network element judges whether to add CIC parameter according to called number prefix, if there is configuration to add CIC parameter, described MMTel AS network element rises in the routing inquiry instruction in the INVITE of exhaling and increases CIC parameter user.
9. control according to claim 8 the IMS network of IMS user's routing inquiry, wherein, if be configured to not inquire about ENUM, described S-CSCF network element goes out IMS territory by calling by MGCF MGCF route, and CIC parameter is deleted in the configuration before transmission INVITE is to MGCF of described S-CSCF network element.
10. according to the IMS network of controlling IMS user's routing inquiry described in claim 6 or 7, wherein, when described S-CSCF network element is inquired about ENUM according to called prefix, there is no commercial province at IMS network, only inquire about local ENUM, not recursive query higher level ENUM.
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| US9949271B2 (en) * | 2014-03-06 | 2018-04-17 | Mediatek Inc. | Smart congestion control for RRC idle mode in LTE systems |
| CN106953940B (en) * | 2017-04-13 | 2018-11-20 | 网宿科技股份有限公司 | Dns server and configuring load application method, network system, domain name analytic method and system |
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| EP2090070B1 (en) * | 2006-12-11 | 2010-09-01 | Telefonaktiebolaget LM Ericsson (publ) | Service adaptation in an IP multimedia subsystem network |
| US8265615B2 (en) * | 2007-10-31 | 2012-09-11 | Nokia Corporation | System apparatus and method for updating communication services |
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