CN1913550B - Method for implementing fixed network searching user integrated data base using soft exchange - Google Patents

Abstract

This invention relates to a system and a method for utilizing soft switch to realize inquiry of user centralized database of stationary network, in which, said system is composed of a structure taking the user centralized database SHLR and intelligent service platform as two independent nodes of the service/application layer, the soft switch as the control layer, IP packet network as the loading layer and SG and TG set in each of PSTN as the access layer, said soft switch network as the overlapping network of PSTN is corresponding to a combined junction office with the SSP function independent of the local network PSTN to form a new fixed network structure by inter-connection and inter-communication of SG and TG with PSTN, a mobile network and Xiao ling tong network: SHLR+SS overlapping network. This invention also provides a method for enquiring data by SS.

Description

Utilize soft switch to realize the method for fixed network searching Smart Home Location Register

Technical field

The present invention relates to a kind of new technology of fixed-line telephone network, exactly, relate to a kind of utilize soft switch realize fixed network searching user integrated in database (that is: Smart Home Location Register SHLR, the method of data Smart HomeLocation Register) belongs to the next generation network technology field of soft switch.

Background technology

At present, the exchanger user data in the fixed-line telephone network all are that separate, stored is in the local data base of this switch, by the user data of each exchange node oneself management local exchange.This mode has following shortcoming:

(1) immobilization of the closure of fixed network and terminal makes it be difficult to new business demand is made fast reaction, can't realize open structure, carries out all kinds of business for the user flexibly; Subscriber Number can't be carried, and is difficult to migration; Can't according to consumer's consumption habit, traditional characteristic and consumption information user's demand creation also.

(2) present, the IN service that landline telephone is carried out on the net mainly relies on the mode (DP3 mode) of access code to realize, use very inconvenient, service groups web frame more complicated simultaneously.

(3) because user data disperses storage, management, and different type of machines need be prepared different user data schemes, for operator, technical sophistication, maintenance cost is big, the promoting service difficulty.Today that new business is maked rapid progress in the communications field, user data management decentralized become telecommunication service and carried out a bottleneck of safeguarding with user data.

Compare with rapid the increasing of the user of mobile network, the development of fixed network is too slow; One of them reason is: use no matter be that normal speech is professional, still the development and application of mobile new business is for user and operator, all more convenient.And its basic reason is: mobile phone user's data are carried out centralized management, and storage and uniform is in attaching position register HLR.No matter the user moves to Anywhere can both inquire himself user property, and the customer service attribute can not lose efficacy, so make things convenient for the user to roam and the providing of professional cross-region.And operator only need make amendment to the customer service attribute data among the HLR, cooperates relevant office data again, just can open new business to the user, and triggering mode is simple flexibly, management is also very convenient.

Therefore, use for reference, utilize the mobile network user data to be carried out the technology of centralized stores and management, set up the intelligent subscriber integrated data store of a centralized stores and managing fixed network user related data and attribute, make fixed-line telephone network can overcome its network closure and the immobilized defective of terminal, and then the approach of expanding new business has fast become insider's common recognition, and its key is will solve how to realize that fixed network visits this intelligent subscriber integrated data store, so that query-relevant data; This problem has become the hot subject that present fixed network operator presses for solution.

Summary of the invention

In view of this, the purpose of this invention is to provide a kind of method of utilizing soft switch to realize the data of fixed network searching Smart Home Location Register, system of the present invention is by introducing Smart Home Location Register SHLR, realize the centralized management of user data, with closure, dispersiveness that overcomes the fixed network number and the limitation that realizes IN service thereof; Utilize again that the soft switch disposal ability is strong, the characteristics of wide coverage, introduce soft switch and be connected PSTN and other communication network with SGW SG, form a kind of new fixed network framework: the SHLR+SS overlay network by Tandem Gateway TG.This network configuration is simple, reliable operation, the existing network project amount of transformation are little, create easily.The present invention also proposes a kind of method of utilizing soft switch SS visit SHLR data query: MAP Extended Protocol mode, it is the MAP+ mode, be the separation of the plane No. of fixed network realization from now on, open system structure and multiple IN service triggering mode, expansion fixed network new business etc. provides technical foundation.

In order to achieve the above object, the invention provides a kind of method of utilizing soft switch to realize the fixed network searching Smart Home Location Register, it is characterized in that: comprise the following steps:

(1) the Home Network Client-initiated is called out, or his network users is initiated to the calling that Home Network lands and send soft switch to handle earlier:

During Home Network PSTN customer call called number, this calling send soft switch to transfer by PSTN is unified, and caller this moment is physical number LRN, and called is logical number DN, PSTN send SG by No.7 nation-wide Network with signaling, and SG send soft switch to handle signaling by signaling transportation protocol SIGTRAN;

Netting the calling that arrives Home Network from him also passes on soft switch and handles, wherein delivering to soft switch from the traffic of mobile network, Personal Handyphone System net earlier by gateway exchange GW handles, deliver to soft switch from the traffic of toll network earlier by toll switch TS and handle, directly or through gateway exchange GW deliver to the soft switch processing from the traffic of other flexible exchanging networks;

(2) soft switch inquiry SHLR is if after Query Result for there not being the IN service trigger message, is obtained caller logical number and called physical number, continue by ordinary call; If Query Result has the IN service trigger message, then be routed to intelligent service platform or service switching point, and the triggering that cooperates intelligent service platform or service switching point to finish IN service is handled;

(3) backward signalling of callee side is handled in soft switch, call proceeding success or failure.

Described step (2) further comprises following operation:

(21) soft switch is initiated the customer service inquiry by MAP MAP Extended Protocol first to SHLR: the calling number of carrying among " transmission route messages " SRI (Send Routing Info) of this MAP Extended Protocol is that physical number LRN, called number are logical number DN at this moment, does not still have the IN service access code;

(22) SHLR handles inquiry and returns the professional priority that calling and called number and IN service information: SHLR are disposed according to " the IN service processing priority table " of prior setting to soft switch, search the caller and called users data and whether have relevant IN service attribute, after inquiry was finished, " send route messages confirm " the message SRIAck (Send Routiing Info Acknowledge) by the MAP Extended Protocol returned Query Result to soft switch;

At this moment, be not with access code in the soft switch reporting information that SHLR received, show that this calling is inquiry first, SHLR begins the IN service attribute of checking that user data has from the business of limit priority according to the priority orders in " IN service processing priority table ";

(23) after the Query Result of SHLR is received in soft switch, carry out call proceeding according to service access code and called number: as if carrying service access code among " sending route messages confirms " the message SRIAck that receives the MAP Extended Protocol, soft switch will be inserted this access code as newly called before the called number that is received, promptly add the called number form with service access code, by the routing rule, directly be triggered to intelligent service platform and handle this business, or be sent to corresponding service exchange point SSP triggering and manage business; If do not have service access code in the information of receiving, then continue the operation of redirect execution in step (3) by the ordinary call routing;

(24) after Business Processing is finished in intelligent service platform or service switching point, before called number, keep this service access code, promptly add the form of called number, calling is gone back to soft switch continue to handle with service access code;

(25) soft switch is initiated the IN service inquiry to SHLR once more: the service access code that interoperability with the soft switches is received adds called number analyze after, initiate inquiry once more, to obtain the IN service information that the next one will trigger, until not finding the IN service information that needs triggering; This moment, it was in " transmission route messages " SRI of the MAP Extended Protocol that SHLR sent (Send Routing Info), the calling number of carrying is that logical number DN, called number are physical number LRN, service access code with received consistent, remain unchanged;

(26) SHLR handles inquiry once more, inquire about the next IN service that will trigger and return in IN service information: the SHLR judgement soft switch reporting information and have service access code, then according to non-query processing first, promptly the IN service according to the next IN service attribute of service priority table sequential search associated user is continued in the corresponding professional position of this access code of coupling in " IN service processing priority table "; If successful inquiring, " send route messages confirm " the message SRIAck by the MAP Extended Protocol returns calling and called number and new service access code information to soft switch, and the caller of this moment is logical number DN, calledly also is logical number DN, remains unchanged; If do not find the service attribute of Any user again, at last called number is transformed to physical number LRN, calling number is logical number DN, and the access code that returns is changed to sky;

(27) after the Query Result of SHLR is received in soft switch, carry out call proceeding according to service access code and called number: if when carrying service access code among " send route messages confirm " message SRIAck of MAP Extended Protocol, then return step (23), corresponding operating is carried out in continuation in proper order; Finish whole inquiries until SHLR to " IN service processing priority table ", when can not find out associated user's next one IN service attribute, the soft switch meeting receives a service access code to be logical number DN for empty, caller and calledly to be the information of physical number LRN, at this moment, soft switch is according to called physical number, according to the routing rule, be routed to called end office; If the called subscriber belongs to local PSTN, send No.7 nation-wide Network with call signaling through SG, deliver to called end office again and land; If the called subscriber belongs to toll network, continuing by toll switch TS enters toll network; If the called subscriber belongs to Personal Handyphone System net or mobile network, then will call out to continue and enter his net by gateway exchange GW by the interconnection and interflow approach; Then directly enter his net or change his net again over to if the called subscriber belongs to other soft exchanging networks through gateway exchange GW.

In the described step (22), search order is first inquiring calling user's an IN service attribute, back inquiry called subscriber's IN service attribute; Priority in described " IN service processing priority table " has 5 grades: 1 grade is highest, and 5 grades is lowermost level, and wherein the 1-2 level is used for the inquiry of calling subscriber's data, and the 3-5 level is used for the inquiry of called party data; 1 grade is to comprise that number carries the calling party number ' s convert class business of NP originating traffic, 2 grades is the signatory Attribute class business of caller that comprises pre-payment APS business, 3 grades is the two-stage dialing class business that comprises card class business, 4 grades is to comprise that CRBT CRT, number carry the called signatory Attribute class business of NP terminating traffic, 5 grades be comprise with shake, the called number transformation classes business of one number service UPT business; If a plurality of business are arranged in every grade, then give each professional ordering successively respectively according to priority order from high to low.

The various IN services of existing network all arrive in described " IN service processing priority table " according to the respective priority ordered registration, and each IN service is assigned with unique corresponding service sign, i.e. a service access code; This service access code is a short codes that is used for Route Selection, needs whole process to carry after entering switching network, and this service access code is added to be inserted in before the called number, is used for routing and professional the triggering; Have only SHLR to have the management and the additions and deletions power of amendment of service access code.

Described step (22) further comprises following operation:

If SHLR finds caller or called user intelligent service attribute, then SHLR returns among " sending route messages confirms " message SRIAck of MAP Extended Protocol to soft switch, and carrying caller is logical number DN, called information for logical number DN and IN service access code;

If SHLR does not find any IN service attribute of user, then the service access code in the SRIAck message of the MAP Extended Protocol that soft switch is returned is for empty, and caller is logical number DN, and called is physical number LRN;

Promptly in this step operation, no matter whether find service attribute, SHLR all will finish the conversion of calling number: the calling party number ' s convert that returns is a logical number, is used for business and the correct display of calling number of next step triggering to the calling number sensitivity; When having only inquiry, just called number is transformed to physical number by logical number at last, so that soft switch is routed to called end office less than service attribute.

Described step (3) further comprises following operation:

(31) soft switch switching backward signalling:

When the called subscriber belonged to PSTN, mobile network, Personal Handyphone System net, the backward signalling that called end office is responded had two kinds: the release message REL of the Address Complete Message ACM of the success that continues and the failure that continues; If the called free time, the terminal ring, called end office send soft switch with Address Complete Message by No.7 nation-wide Network, SG, and soft switch is transmitted this signaling through SG, No.7 nation-wide Network to originating switch again, and ring-back tone is listened in caller; If Called Busy or routing failure, the release message that called end office will carry failure cause send soft switch by No.7 nation-wide Network, SG, and soft switch is transmitted this signaling through SG, No.7 nation-wide Network to originating switch, and busy tone or failure notification sound, call clearing are listened in caller;

When called when being positioned at other soft exchanging networks, by other soft exchanging networks by with the interconnection and interflow agreement or the signaling of described network system, return continue success or failure to soft switch, busy tone or failure notification sound, call clearing are listened in caller when continuing failure;

(32) called off-hook, the calling and called conversation:

When the called subscriber belongs to PSTN, mobile network, Personal Handyphone System net, called end office send soft switch with the successful signaling of called party answer by No.7 nation-wide Network, SG, soft switch is transmitted this signaling through SG, No.7 nation-wide Network to originating switch, the calling and called conversation, voice pathway is: connect called end office from originating switch via TG; If called long time no answer, the overtime call release of overtime at first switching node;

When called when being positioned at other soft exchanging networks, other soft exchanging networks by with the interconnection and interflow agreement or the signaling of described network system, to the information of soft switch echo reply success, the calling and called conversation; If called long time no answer, overtime at first switching node call release.

The present invention has the following advantages and effect with respect to prior art:

System of the present invention realizes the centralized management of user data by introducing Smart Home Location Register SHLR, with the closure that overcomes the fixed network number, the dispersiveness of terminal and the limitation of realization IN service thereof; Utilize again that the soft switch disposal ability is strong, the characteristics of wide coverage, with soft switch SS combining as the powerful service switching point ability of convergence layer and Smart Home Location Register SHLR, intelligent service platform, the triggering of IN service, control and processing are all concentrated on a few core node, shielded the traffic performance of end office's layer, needn't carry out rising the version transformation to the great end office's business function of quantity, can realize the fixed network intelligent network easily.Be connected PSTN and other communication network by soft switch with SGW SG by Tandem Gateway TG then, form a kind of new fixed network framework: the SHLR+SS overlay network.This network configuration is simple, reliable operation, the existing network project amount of transformation are little, create easily.And, in the opening of intelligent new business, be no longer dependent on each end office (EO).As long as the SS convergence layer is supported, can cover professional fast towards all users of the whole network (comprising landline telephone, mobile phone and Personal Handyphone System), need not to consider the networking of end office (EO), also need not in each end office (EO), to make complicated office data coordinated scheme into each business, even numerous and diverse task of upgrading.

Carrying out plane No. by SHLR separates, this system can dispose new intelligent value-added service on a large scale for fixed network, for example mix distribute telephone numbers, the CRBT of fixed network number, one number service etc., network foundation is provided, can become the important technical that the fixed network operator opens up new profit growth point.

Because SHLR adopts centralized stores to user data, makes things convenient for the centralized management of user data, reduce maintenance cost; Service Data Management simultaneously is more flexible, is convenient to the individual business that provides unified.After adopting system of the present invention, make fixed network to the network architecture of mobile network and next generation network near major step, can smooth evolution to next generation network, and support mobile service.

The present invention also proposes a kind of soft switch SS that utilizes and adopts MAP Extended Protocol (MAP+) mode to visit the method for SHLR data query, clear, the reliable operation of this method operating procedure, not only local tandem exchange is identical with end office (EO), traffic can be sent soft switch inquiry SHLR, directly or through gateway exchange GW inquire about to soft switch from the traffic of other flexible exchanging networks.And, also can perhaps directly inquire about SHLR from the traffic of toll network through toll switch to the soft switch inquiry without soft switch; Traffic from mobile network, Personal Handyphone System net is then inquired about to soft switch through gateway exchange, perhaps directly inquires about SHLR without soft switch.Therefore, the present invention is the separation of the plane No. of fixed network realization from now on, open system structure and multiple IN service triggering mode, and expansion fixed network new business etc. provides technical foundation.

Description of drawings

Fig. 1 is that the present invention utilizes soft switch to realize the system configuration composition schematic diagram of fixed network searching Smart Home Location Register.

Fig. 2 is after adopting system of the present invention, to the evolution schematic diagram of the existing network architecture.

Fig. 3 is that the present invention utilizes soft switch to realize the method flow diagram of fixed network searching Smart Home Location Register.

Fig. 4 is that the present invention utilizes soft switch to realize signaling process schematic diagram in the implementation method of fixed network searching Smart Home Location Register.

Embodiment

For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with accompanying drawing.

Referring to Fig. 1, the present invention is a kind of system that utilizes soft switch to realize the fixed network searching Smart Home Location Register, it at present fixed-line telephone network on telephone number closure and the limitation of IN service propose, adopt the Tandem Gateway TG of soft switch to replace traditional tandem exchange, introduce Smart Home Location Register (being SHLR) simultaneously, be used to deposit the access code of user data and IN service, SHLR also supports to store all properties that the user comprises basic service and supplementary service, so that realize that mixing is distributed telephone numbers and the triggering of IN service.Following mask body is introduced its group-network construction:

This system comprises flexible exchanging network and public switched telephone network PSTN, and wherein flexible exchanging network is to be that key-course, IP Packet Based Network are bearing bed, are that Access Layer is set up and constituted to be arranged on SGW SG among each public switched telephone network PSTN and Tandem Gateway TG again by soft switch SS; This flexible exchanging network is equivalent to a integrated convergence office with SSP function relatively independent with local network PSTN as the overlay network of PSTN, interconnects by SG and TG and local network PSTN; This system also comprises two isolated nodes of application layer:

Smart Home Location Register (SHLR), Smart Home Location Register as fixed network, the IN service access code that is used to deposit user data and is used as the IN service trigger message, adopt MAP (MAP+) agreement and the soft switch of expansion to transmit information mutually, to support the inquiry of user profile and business information, calling and called and service access code information are provided, are used for the triggering that switching node is realized IN service; Creating in this SHLR has IN service processing priority table, is used for the priority of control service inquiry when multi-service is nested to be triggered; SHLR can also store all user properties that comprise telecommunications basic service and supplementary service;

Intelligent service platform, promptly the control point of IN service is used to accept the IN service request, and the logic of managing business is finished IN service and is called out control, charging and service management function; Adopt SIP SIP directly to connect soft switch, perhaps adopt intelligent network application part agreement INAP to connect soft switch by SGW SG, adopt the service switching point interconnection of Intelligent Network Application Protocol and PSTN simultaneously, for flexible exchanging network and PSTN net provide various IN services.

Wherein user data comprises user's physical number, logical number and IN service attribute, logical number (being Subscriber Number DN) is the one number that operator distributes to the user, also be that the user discerns the number that the user also charges to number and the operator that the external world announces, as user during as caller, it is the telephone number that is presented at terminal called; When the user when called, it is the calling that the calling party dials.Physical number (being routing number LRN) is the routing number that operator distributes to subscribers feeder, this number is not announced to the external world, as the network internal number, and it is corresponding with certain port or subscribers feeder in the fixed network switch, the roaming number that is equivalent to the mobile subscriber, the local network switching equipment is according to this number addressing user's true place.The IN service attribute is the Data Identification and the active state of user's IN service of registering.

Wherein soft switch SS is the control core of this system, by the LS of end office (EO), toll switch TS, each category node such as gateway exchange GW, intercommunication gateway exchange IGW in the TG connection PSTN net, the inquiry of user data and business information is carried out in support to SHLR, the supporting business access code is routed to intelligent service platform or SSP, and cooperate intelligent service platform or SSP to finish Business Processing, for providing, the business with real-time requirement calls out control and billing function.According to using and service scenario, soft switch SS can be by media gateway controller MGC and sip server, or the two constitute.

SGW SG is the functional entity that is connected across between No.7 nation-wide Network and the soft exchanging network, be responsible for to signalling system No.7 message transfer, translation or finalization process, link to each other with soft switch SS by signaling transportation protocol SIGTRAN and to transmit signaling.Tandem Gateway TG is the functional entity that is connected across between PSTN/ISDN net and the soft exchanging network, is responsible for termination TDM repeat circuit, and with the form of media stream transition composition networking requirement, is connected and transmission information with soft switch SS by MGCP.SGW and Tandem Gateway are independent the settings, and perhaps both close and are made as one, depend on the needs of using with service.

Referring to Fig. 2, illustrate that system of the present invention introduces SHLR after, to evolution and its becoming of the existing network architecture to network development of future generation:

Now, the network configuration of local network is the structure of secondary tandem mixing mesh network mostly still, and user, professional data and exchange controlled function are distributed to each end office (EO).When newly-built node will be with the PSTN intercommunication, because existing tandem exchange scarce capacity causes new node to open through circuit with each end office (EO) in the net.If the office point number of local network is more,, can cause end office's data quite complexity, many problems such as office direction is many, repeat circuit is many, utilance is low inevitably because the circuit of netted connection and node number is square proportional.

After adopting SHLR of the present invention, the demand of transforming has been proposed in tandem exchange.Because tandem exchange will play the effect of " gateway exchange in the net ", and end office (EO) be only as user and professional access point as the exchange control core of local telephone network.Therefore, newly-built node only need be opened through circuit with tandem exchange, just can finish traffic intercommunication between the two.The network hierarchy of this structure is simple, clear, and extensibility is good.After Fig. 2 has showed that network system of the present invention is introduced SHLR, to the evolution of the existing network architecture and realize each operating procedure of communication process:

(1) each end office (EO) reports the TM of tandem exchange with calling;

(2) tandem exchange's (being soft switch SS) is to Smart Home Location Register SHLR inquiry business attribute;

(3) SHLR returns calling and called information and service access code according to the user intelligent service attribute;

(4) SCP of intelligent service platform, or application server AS cooperates the processing that realizes IN service with SS.

Inquiry between SS and the SHLR can have dual mode: MAP agreement MAP or MAP Extended Protocol MAP+.When adopting the MAP scheme, store user's all properties among the SHLR, as information such as Subscriber Number, position, new business, IN service, broadband services,, may also comprise client's hobby, credit, broad sense business datum of custom etc. along with the development of communication network.At this moment, the user data of the end office (EO) of traditional exchange pusher side all will rise to and carry out centralized and unified management in the SHLR, and this end office (EO) only need know that the corresponding relation of user's physical number and port gets final product, and all business all realize that by SS SS possesses the VLR function.And when adopting the MAP+ scheme, canned data has user's physical number, logical number and IN service access code at least among the SHLR, attribute of user is not to store, at this moment, the user property of conventional switch end office (EO) still keeps effectively, most of supplementary service is finished by end office (EO), and SS does not need to possess the VLR function.

Because the soft switch of fixed network also has VLR Visitor Location Register VLR (Visitor Location Register) unlike the mobile network switch at present, can support the function of the multiattribute disposable inquiry of user: all service attributes of calling and called user are once returned in inquiry, and copy to interim internal database by the fixed network soft switch, with convenient professional triggering.Therefore, in order to reduce the scrap build workload of soft switch, the present invention adopts the MAP+ querying method to Smart Home Location Register SHLR, be that an IN service attribute is only returned in each inquiry, like this, a calling of fixed network often needs repeatedly to the SHLR inquiry business, and each inquiry all is the independent sessions process.SHLR has strict demand again to work flow, endless loop occurs for avoiding Business Processing, and SHLR must know before the current inquiry whether the work flow position of inquiry last time and last inquiry was arranged, so that it is next professional to continue inquiry.The present invention adopts network whole process to carry service access code and solves this problem.Therefore, agreement has only SHLR that the management and the additions and deletions power of amendment of service access code are arranged, and other network elements will guarantee the transparent transmission of service access code, must not change and lose.

In fact, MAP+ has only expanded two message: SRI (SendRoutingInfo) message and SRI_Ack (SendRoutingInfo Acknowledge) message of MAP the inside, is used to realize the conversion of user's physical number and logical number and returning of IN service access code.

Referring to Fig. 3, introduce the present invention and utilize soft switch to realize the implementation method flow process that the fixed network user inquires about Smart Home Location Register:

Phase I: the Home Network Client-initiated is called out, or his network users is initiated to the Call Forwarding soft switch processing that Home Network lands: the calling called number of Home Network PSTN, this calling send soft switch to transfer by PSTN is unified, caller this moment is physical number LRN, called is logical number DN, PSTN send SG by No.7 nation-wide Network with signaling, and SG send soft switch to handle signaling by signaling transportation protocol SIGTRAN;

Netting the calling that arrives Home Network from him also passes on soft switch and handles, wherein delivering to soft switch from the traffic of mobile network, Personal Handyphone System net earlier by gateway exchange GW handles, deliver to soft switch from the traffic of toll network earlier by toll switch TS and handle, directly or through gateway exchange GW deliver to the soft switch processing from the traffic of other flexible exchanging networks;

Second stage: soft switch inquiry SHLR, if after Query Result for there not being the IN service trigger message, is obtained caller logical number and called physical number, continue by ordinary call; If Query Result has the IN service trigger message, then be routed to intelligent service platform or service switching point, and the triggering that cooperates intelligent service platform or SSP to finish IN service is handled;

Phase III: the callee side backward signalling is handled in soft switch, call proceeding success or failure.

The operating procedure of above-mentioned second stage is a key of the present invention, referring to Fig. 4, specifies one embodiment of the present of invention adopt MAP+ protocol mode inquiring user data between soft switch SS and SHLR whole operation step.

(1) the Call Forwarding soft switch initiated of PSTN is handled, promptly during the calling called number of PSTN, this callings via end office (EO) 1, PSTN is unified send soft switch to transfer, the phase I of its operating procedure and above-mentioned this method operates identical, repeats no more;

(2) soft switch is initiated the customer service inquiry by the MAP+ agreement first to SHLR: the calling number of carrying among " transmission route messages " SRI of MAP+ agreement is that physical number LRN, called number are logical number DN at this moment, does not still have the IN service access code;

(3) SHLR handles inquiry and returns the professional priority that calling and called number and IN service information: SHLR are disposed according to " the IN service processing priority table " of prior setting to soft switch, whether search the caller and called users data exists relevant business to trigger attribute, after inquiry was finished, " send route messages confirm " the message SRIAck by the MAP+ agreement returned Query Result;

At this moment, be not with access code in the soft switch reporting information that SHLR received, show that this calling is inquiry first, SHLR begins the service attribute of checking that user data has from the business of limit priority according to the priority orders in " IN service processing priority table ".Search order is first inquiring calling user's a service attribute, back inquiry called subscriber's service attribute; Priority in " IN service processing priority table " has 5 grades: 1 grade is highest, and 5 grades is lowermost level, and wherein the 1-2 level is used for the inquiry of calling subscriber's data, and the 3-5 level is used for the inquiry of called party data; 1 grade is to comprise that number carries the calling party number ' s convert class business of NP originating traffic, 2 grades is the signatory Attribute class business of caller that comprises pre-payment APS business, 3 grades is the two-stage dialing class business that comprises card class business, 4 grades is to comprise that CRBT CRT, number carry the called signatory Attribute class business of NP terminating traffic, 5 grades be comprise with shake, the called transformation classes business of one number service UPT business; If a plurality of business are arranged in every grade, then sort according to order of priority.All according to priority ordered registration is in this table for the IN service of existing network, and each IN service is assigned with a unique corresponding service sign-service access code.This service access code is a short codes, needs whole process to carry: enter behind the switching network this service access code and added and be inserted in before the called number, be used for routing and professional the triggering; Have only SHLR to have the power of amendment of service access code.

In fact, this step (3) further comprises following two operations:

If SHLR finds caller or called customer service attribute, then SHLR returns among " sending route messages confirms " message SRIAck of MAP+ agreement to soft switch, and carrying caller is logical number DN, called information for logical number DN and IN service access code;

If SHLR does not find any service attribute of user, then the access code in the SRIAck message of the MAP+ agreement that soft switch is returned is for empty, and wherein caller is logical number DN, and called is physical number LRN;

Promptly in this step operation, no matter whether find service attribute, SHLR all will finish the conversion of calling number: the calling party number ' s convert that returns is logical number DN, is used for business and the correct display of calling number of next step triggering to the calling number sensitivity; When having only inquiry, just called number is transformed to physical number LRN by logical number DN at last, so that soft switch is routed to called end office less than service attribute.

(4) after the Query Result of SHLR is received in soft switch, carry out call proceeding according to service access code and called number: as if carrying service access code among " sending route messages confirms " the message SRIAck that receives the MAP+ agreement, soft switch will be inserted this access code as newly called before the called number that is received, promptly with service access code+called number form, by the routing rule, directly be triggered to intelligent service platform and handle this business, also can be sent to corresponding service exchange point SSP triggering and manage business; If do not have service access code in the information of receiving, then continue by the ordinary call routing, the operation of phase III is carried out in redirect;

(5) after Business Processing is finished in intelligent service platform or service switching point, before called number, keep this service access code, promptly, calling is gone back to soft switch continue to handle with the form of service access code+called number;

(6) soft switch is once more to the inquiry of SHLR initiation IN service: after service access code+called number that interoperability with the soft switches is received is analyzed, initiate inquiry once more, want business of triggering information to obtain the next one, need business of triggering information until not finding; This moment its calling number of in " transmission route messages " SRI that SHLR sent, carrying be that logical number DN, called number are physical number LRN, service access code with received consistent, remain unchanged;

(7) SHLR handles inquiry once more, promptly according to the work flow of " IN service processing priority table ", inquire about next IN service and return in IN service information: the SHLR judgement soft switch reporting information and have service access code, then according to non-query processing first, promptly the IN service according to priority list sequential search user's next service attribute is continued in the corresponding professional position of this access code of coupling in " IN service processing priority table "; If successful inquiring, " send route messages confirm " the message SRIAck by the MAP+ agreement returns calling and called number and new service access code information to soft switch, and the caller of this moment is logical number DN, calledly also is logical number DN, remains unchanged; If do not find the service attribute of Any user again, at last called number is transformed to physical number LRN, calling number is logical number DN, and the service access code that returns is changed to sky;

(8) after the Query Result of SHLR is received in soft switch, carry out call proceeding according to service access code and called number: if when carrying service access code among " send route messages confirm " message SRIAck of MAP+ agreement, then return step (4) to (7), continue to carry out corresponding operating; Finish whole inquiries until SHLR to " IN service processing priority table ", when can not find out user's next one service attribute, the soft switch meeting receives a service access code to be logical number DN for empty, caller and calledly to be the information of physical number LRN, at this moment, soft switch is according to called physical number, according to the routing rule, be routed to called end office; If the user is in PSTN, send No.7 nation-wide Network with call signaling through SG, deliver to called end office 2 again and land; If the called subscriber belongs to toll network, continuing by toll switch TS enters toll network in addition; If the called subscriber belongs to Personal Handyphone System net or mobile network, then will call out to continue and enter his net by gateway exchange GW by the interconnection and interflow approach; Then directly enter his net or change his net again over to if the called subscriber belongs to other soft exchanging networks through gateway exchange GW.After this be the phase III of the inventive method, this stage comprises two operating procedures:

(9) soft switch switching backward signalling:

When the called subscriber belonged to PSTN, mobile network, Personal Handyphone System net, the backward signalling that called end office is responded had two kinds: the release message REL (RELease) of the Address Complete Message ACM of the success that continues (Address Complete) and the failure that continues; If the called free time, the terminal ring, called end office send soft switch with Address Complete Message by No.7 nation-wide Network, SG, and soft switch is transmitted this signaling through SG, No.7 nation-wide Network to originating switch again, and ring-back tone is listened in caller; If Called Busy or routing failure, the release message that called end office will carry failure cause send soft switch by No.7 nation-wide Network, SG, and soft switch is transmitted this signaling through SG, No.7 nation-wide Network to originating switch, and busy tone or failure notification sound, call clearing are listened in caller;

When called when being positioned at other soft exchanging networks, by other soft exchanging networks by with the interconnection and interflow agreement or the signaling of described network system, return continue success or failure to soft switch, busy tone or failure notification sound, call clearing are listened in caller when continuing failure.

(10) called off-hook, the calling and called conversation:

When the called subscriber belongs to PSTN, mobile network, Personal Handyphone System net, called end office send soft switch with the successful signaling of called party answer by No.7 nation-wide Network, SG, soft switch is transmitted this signaling through SG, No.7 nation-wide Network to originating switch, the calling and called conversation, voice speech channel is: originating switch-TG-called end office; If called long time no answer, overtime at first switching node call release;

When called when being positioned at other soft exchanging networks, other soft exchanging networks by with the interconnection and interflow agreement or the signaling of described network system, to the information of soft switch echo reply success, the calling and called conversation; If called long time no answer, overtime at first switching node call release.

System and method of the present invention has all tapped into to have gone to test and has implemented, and the result of test is successful, has realized substantially goal of the invention having good popularization and application prospect.

Claims (6)

1. a method of utilizing soft switch to realize the fixed network searching Smart Home Location Register is characterized in that: comprise the following steps:

(1) the Home Network Client-initiated is called out, or his network users is initiated to the calling that Home Network lands and send soft switch to handle earlier:

Home Network PSTN customer call called number, this calling send soft switch to transfer by PSTN is unified, and caller this moment is physical number LRN, and called is logical number DN, PSTN send SG by No.7 nation-wide Network with signaling, and SG send soft switch to handle signaling by signaling transportation protocol SIGTRAN;

Netting the calling that arrives Home Network from him also passes on soft switch and handles, wherein delivering to soft switch from the traffic of mobile network, Personal Handyphone System net earlier by gateway exchange GW handles, deliver to soft switch from the traffic of toll network earlier by toll switch TS and handle, directly or through gateway exchange GW deliver to the soft switch processing from the traffic of other flexible exchanging networks;

(2) soft switch inquiry SHLR is if after Query Result for there not being the IN service trigger message, is obtained caller logical number and called physical number, continue by ordinary call; If Query Result has the IN service trigger message, then be routed to intelligent service platform or service switching point, and the triggering that cooperates intelligent service platform or service switching point to finish IN service is handled;

(3) backward signalling of callee side is handled in soft switch, call proceeding success or failure.

2. the method for inquiry Smart Home Location Register according to claim 1 is characterized in that: described step (2) further comprises following operation:

(21) soft switch is initiated the customer service inquiry by MAP MAP Extended Protocol first to SHLR: the calling number of carrying among " transmission route messages " SRI of this MAP Extended Protocol is that physical number LRN, called number are logical number DN at this moment, does not still have the IN service access code;

(22) SHLR handles inquiry and returns the professional priority that calling and called number and IN service information: SHLR are disposed according to " the IN service processing priority table " of prior setting to soft switch, search the caller and called users data and whether have relevant IN service attribute, after inquiry was finished, " send route messages confirm " the message SRIAck by the MAP Extended Protocol returned Query Result to soft switch;

At this moment, be not with access code in the soft switch reporting information that SHLR received, show that this calling is inquiry first, SHLR begins the IN service attribute of checking that user data has from the business of limit priority according to the priority orders in " IN service processing priority table ";

(23) after the Query Result of SHLR is received in soft switch, carry out call proceeding according to service access code and called number: as if carrying service access code among " sending route messages confirms " the message SRIAck that receives the MAP Extended Protocol, soft switch will be inserted this access code as newly called before the called number that is received, promptly add the called number form with service access code, by the routing rule, directly be triggered to intelligent service platform and handle this business, or be sent to corresponding service exchange point SSP triggering and manage business; If do not have service access code in the information of receiving, then continue the operation of redirect execution in step (3) by the ordinary call routing;

(24) after Business Processing is finished in intelligent service platform or service switching point, before called number, keep this service access code, promptly add the form of called number, calling is gone back to soft switch continue to handle with service access code;

(25) soft switch is initiated the IN service inquiry to SHLR once more: the service access code that interoperability with the soft switches is received adds called number analyze after, initiate inquiry once more, to obtain the IN service information that the next one will trigger, until not finding the IN service information that needs triggering; This moment its in " transmission route messages " SRI of the MAP Extended Protocol that SHLR sent, the calling number of carrying is that logical number DN, called number are physical number LRN, service access code with received consistent, remain unchanged;

(26) SHLR handles inquiry once more, inquire about the next IN service that will trigger and return in IN service information: the SHLR judgement soft switch reporting information and have service access code, then according to non-query processing first, promptly the IN service according to the next IN service attribute of service priority table sequential search associated user is continued in the corresponding professional position of this access code of coupling in " IN service processing priority table "; If successful inquiring, " send route messages confirm " the message SRIAck by the MAP Extended Protocol returns calling and called number and new service access code information to soft switch, and the caller of this moment is logical number DN, calledly also is logical number DN, remains unchanged; If do not find the service attribute of Any user again, at last called number is transformed to physical number LRN, calling number is logical number DN, and the access code that returns is changed to sky;

(27) after the Query Result of SHLR is received in soft switch, carry out call proceeding according to service access code and called number: if when carrying service access code among " send route messages confirm " message SRIAck of MAP Extended Protocol, then return step (23), corresponding operating is carried out in continuation in proper order; Finish whole inquiries until SHLR to " IN service processing priority table ", when can not find out associated user's next one IN service attribute, the soft switch meeting receives a service access code to be logical number DN for empty, caller and calledly to be the information of physical number LRN, at this moment, soft switch is according to called physical number, according to the routing rule, be routed to called end office; If the called subscriber belongs to local PSTN, send No.7 nation-wide Network with call signaling through SG, deliver to called end office again and land; If the called subscriber belongs to toll network, continuing by toll switch TS enters toll network; If the called subscriber belongs to Personal Handyphone System net or mobile network, then will call out to continue and enter his net by gateway exchange GW by the interconnection and interflow approach; Then directly enter his net or change his net again over to if the called subscriber belongs to other soft exchanging networks through gateway exchange GW.

3. the method for inquiry Smart Home Location Register according to claim 2 is characterized in that: in the described step (22), search order is first inquiring calling user's an IN service attribute, back inquiry called subscriber's IN service attribute; Priority in described " IN service processing priority table " has 5 grades: 1 grade is highest, and 5 grades is lowermost level, and wherein the 1-2 level is used for the inquiry of calling subscriber's data, and the 3-5 level is used for the inquiry of called party data; 1 grade is to comprise that number carries the calling party number ' s convert class business of NP originating traffic, 2 grades is the signatory Attribute class business of caller that comprises pre-payment APS business, 3 grades is the two-stage dialing class business that comprises card class business, 4 grades is to comprise that CRBT CRT, number carry the called signatory Attribute class business of NP terminating traffic, 5 grades be comprise with shake, the called number transformation classes business of one number service UPT business; If a plurality of business are arranged in every grade, then give each professional ordering successively respectively according to priority order from high to low again.

4. the method for inquiry Smart Home Location Register according to claim 3, it is characterized in that: the various IN services of existing network all arrive in described " IN service processing priority table " according to the respective priority ordered registration, each IN service is assigned with unique corresponding service sign, i.e. a service access code; This service access code is a short codes that is used for Route Selection, needs whole process to carry after entering switching network, and this service access code is added to be inserted in before the called number, is used for routing and professional the triggering; Have only SHLR to have the management and the additions and deletions power of amendment of service access code.

5. the method for inquiry Smart Home Location Register according to claim 2 is characterized in that: described step (22) further comprises following operation:

If SHLR finds caller or called user intelligent service attribute, then SHLR returns among " sending route messages confirms " message SRIAck of MAP Extended Protocol to soft switch, and carrying caller is logical number DN, called information for logical number DN and service access code;

If SHLR does not find any IN service attribute of user, then the service access code in the SRIAck message of the MAP Extended Protocol that soft switch is returned is for empty, and caller is logical number DN, and called is physical number LRN;

Promptly in this step operation, no matter whether find service attribute, SHLR all will finish the conversion of calling number: the calling party number ' s convert that returns is a logical number, is used for business and the correct display of calling number of next step triggering to the calling number sensitivity; When having only inquiry, just called number is transformed to physical number by logical number at last, so that soft switch is routed to called end office less than service attribute.

6. the method for inquiry Smart Home Location Register according to claim 3 is characterized in that: described step (3) further comprises following operation:

(31) soft switch switching backward signalling:

When the called subscriber belonged to PSTN, mobile network, Personal Handyphone System net, the backward signalling that called end office is responded had two kinds: the release message REL of the Address Complete Message ACM of the success that continues and the failure that continues; If the called free time, the terminal ring, called end office send soft switch with Address Complete Message by No.7 nation-wide Network, SG, and soft switch is transmitted this signaling through SG, No.7 nation-wide Network to originating switch again, and ring-back tone is listened in caller; If Called Busy or routing failure, the release message that called end office will carry failure cause send soft switch by No.7 nation-wide Network, SG, and soft switch is transmitted this signaling through SG, No.7 nation-wide Network to originating switch, and busy tone or failure notification sound, call clearing are listened in caller;

When called when being positioned at other soft exchanging networks, by other soft exchanging networks by with the interconnection and interflow agreement or the signaling of described network system, return continue success or failure to soft switch, busy tone or failure notification sound, call clearing are listened in caller when continuing failure;

(32) called off-hook, the calling and called conversation:

When the called subscriber belongs to PSTN, mobile network, Personal Handyphone System net, called end office send soft switch with the successful signaling of called party answer by No.7 nation-wide Network, SG, soft switch is transmitted this signaling through SG, No.7 nation-wide Network to originating switch, the calling and called conversation, voice pathway is: connect called end office from originating switch via TG; If called long time no answer, overtime at first switching node call release;

When called when being positioned at other soft exchanging networks, other soft exchanging networks by with the interconnection and interflow agreement or the signaling of described network system, to the information of soft switch echo reply success, the calling and called conversation; If called long time no answer, overtime at first switching node call release.

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