CN100534114C - System and method for implementing integral managing user data of fixed telephone network - Google Patents
System and method for implementing integral managing user data of fixed telephone network Download PDFInfo
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- CN100534114C CN100534114C CNB200510114516XA CN200510114516A CN100534114C CN 100534114 C CN100534114 C CN 100534114C CN B200510114516X A CNB200510114516X A CN B200510114516XA CN 200510114516 A CN200510114516 A CN 200510114516A CN 100534114 C CN100534114 C CN 100534114C
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Abstract
This invention relates to a system and a method for realizing centralized management to user data of a fixed phone net, in which, the system is to introduce a user centralized database HLR in a soft switch network to store and manage the user data of fully fixed phone net in concentration then utilizes the character of strong process ability of the soft switch and widely cover sphere to form a new fixed phone net structure, the HLR+SS overlapping network. This invention also provides a method for enlarging criterion access HLR enquiring user data by a soft switch device SS with the MAP or Diameter protocol as the basis to further trigger user related services and play a foundation for realizing separation of machine and number, opened system and multi-kind of intelligent service trigger mode and development of fixed net new service.
Description
Technical field
The present invention relates to a kind of new technology of fixed-line telephone network, exactly, (be called for short: user data fixed-line phone network) is realized the method for centralized management, belongs to next generation network Softswitch technology field to relate to a kind of fixed-line telephone network.
Background technology
At present, the user data of fixed-line phone network all is that separate, stored is in the local data base of each switch, by the user data of each exchange node oneself management local exchange.There is following shortcoming in this mode:
(1) fixed-line phone network mainly relies on access code mode (being the DP3 mode) to realize IN service, and there is limitation in business realizing.
(2) customer data base disperses, independently is provided with, each exchange end office (EO) only is responsible for storage user data separately, shortcoming such as cause the storage and management of user data to disperse, user data can not be shared causes fixed-line phone network operator to provide new business to the user quickly and efficiently thus.
As everyone knows, the user data of mobile telephone network is carried out centralized management, and storage and uniform is in attaching position register HLR.No matter the user moves to Anywhere, and the customer service attribute can not lost, make the user can realize the roaming and operator easily cross-region miscellaneous service is provided.
Flexible exchanging network is the direction of fixed-line phone network to next generation network evolution, consider the problem that existing fixed-line phone network exists, use for reference mobile telephone network, introducing attaching position register HLR (claiming user's integrated data store again) in based on the fixed-line phone network of soft switch has become many personages' common recognition and development trend in the industry.Because after increasing attaching position register or user's integrated data store HLR, both can realize centralized stores and management to whole fixed-line phone network user data, again can cooperatively interacting by soft switch and HLR equipment, obtaining under the prerequisite of user data, just can fast, in time trigger user's related service, improve the intelligent level of fixed-line phone network greatly.Introducing user integrated data store HLR has become current fixed-line phone network and has realized intelligentized a kind of very important technological development direction.But, how to inquire about HLR equipment, obtain required user data, and after obtaining UAD, the rules how soft switch carries out subsequent operation, these particular problems all are the key technologies of such scheme, cause the very big interest and the concern of fixed network operator and person skilled.
Summary of the invention
In view of this, the user data that the purpose of this invention is to provide a kind of fixed-line telephone network is realized the method for centralized management, the present invention introduces user's integrated data store HLR in flexible exchanging network, user data to full fixed-line phone network is realized centralized stores and management, utilize again that the soft switch disposal ability is strong, the characteristics of wide coverage, form a kind of new fixed-line phone network framework: the HLR+SS overlay network.The present invention also proposes a kind of by the expansion rules visit HLR inquiring user data of soft switch SS (SoftSwitch) based on MAP or Diameter, and then the method for triggering user corresponding service, realize plane No. separation, open system structure and multiple IN service triggering mode, expansion fixed network new business etc. later on for fixed network and establish technical foundation, so that all users towards full fixed-line phone network cover business fast, for operator strives for maximum economic benefits and social benefit.
In order to achieve the above object, a kind of method of managing concentratedly in the user data realization of fixed-line telephone network is characterized in that: comprise the following steps:
(1) soft switch receives call request;
(2) soft switch is judged query object according to calling out the calling source, if query object is calling subscriber's data, order is carried out subsequent operation; If query object is a called party data, then redirect execution in step (8);
(3) first its buffer of search of soft switch, if when storing the user data of current query object in the buffer, after the business when then triggering this user as caller according to the logical number of calling subscriber's correspondence, redirect execution in step (5); Otherwise soft switch is chosen as the HLR of this calling subscriber's service;
(4) soft switch is initiated the query requests of these calling subscriber's data of inquiry to selected HLR, after HLR receives this query requests, if inquire this calling subscriber's data, then returns all customer data that this calling subscriber stores to soft switch is disposable in HLLR; Soft switch with Query Result download, after the caching process, the business of finishing caller according to the logical number of calling subscriber's correspondence triggers; If do not inquire this calling subscriber's data, then the soft switch end call continues;
(5) soft switch is chosen as the soft switch of called subscriber's service according to called subscriber's logical number;
(6) still search for its buffer earlier for the soft switch of called subscriber service, if in buffer, inquire called party data, after then finishing called business and trigger by this soft switch, redirect execution in step (9); Otherwise the query requests of inquiry called subscriber physical number is initiated in this soft switch to the HLR of called subscriber's ownership according to called subscriber's logical number;
(7) if do not inquire this user's physical number in the HLR of called subscriber's ownership, then the soft switch end call continues; Otherwise, the HLR of called subscriber's ownership returns called subscriber's physical number to soft switch, if the scope that this physical number is to one's name administered is judged in soft switch, then initiate the query requests of inquiry called party data again to this HLR, after HLR receives this query requests, all customer data of in HLR, storing to the disposable called subscriber of returning of soft switch; This soft switch with Query Result download, caching process, after finishing called business again and triggering, redirect execution in step (9); If the user scope that this physical number is not to one's name administered is judged in soft switch, then route the call to the soft switch of called subscriber's ownership according to called subscriber's physical number, the called number form in this moment call control signalling is: " office number "+" logical number ";
(8) soft switch of called subscriber's ownership is according to the calling source, carry out user data query and professional triggering work: search for its buffer earlier at the called subscriber, when not having the user data of current query object in the buffer, then initiate the query requests of inquiring user data to the HLR of correspondence according to the called logical number, after obtaining whole user data and downloading, store, trigger the business of this user when called; If do not inquire called party data among this HLR, then the soft switch end call continues;
(9) called subscriber is called out in soft switch, according to called subscriber's return state, sets up and calls out or call failure.
Described method further comprises following initialization operation: utilize the PSTN user of Tandem Gateway TG and SGW SG access and other users' physical port and the corresponding relation of physical number all to be stored in the soft switch of ownership as office data, wherein: before soft exchanging network is brought into use, by manually in advance AG user's the physical port and the corresponding relation of physical number being write soft switch; When IAD user opens an account, IAD user's the physical port and the corresponding relation of physical number are write soft switch by business support system; The sip user that does not have physical port is that the account number of caller sip user that the User Network Interface uni interface is received is regarded the physical vlan port as, when sip user is opened an account, the corresponding relation of this physical vlan port and physical number is write soft switch by business support system.
When soft switch is judged query object according to calling calling source in the described step (2), include following various situation:
(21) calling of initiating by the node of local PSTN net, soft switch receives that the calling number in the ISUP signaling is a physical number, called number is a logical number; The query object of soft switch is calling subscriber's data;
(22) calling of initiating by the AG in the local network, SIP, IAD, the query object of soft switch is calling subscriber's data;
(23) calling of initiating by other soft switch in the local network, the query object of soft switch is a called party data;
(24) via the calling from his net of gateway exchange GW, the query object of soft switch is a called party data;
(25) from the calling of other local fixed-line phone networks, the query object of soft switch is a called party data.
When following situation took place, soft switch tackled that the user data of buffer memory in its buffer is edited, retouching operation, with data in the buffer of guaranteeing soft switch and the identical unanimity of data among the HLR:
When (31) inserting user data under inquiry or HLR first, soft switch is this user data of buffer memory immediately, restarts or HLR when initiatively initiating the data delete instruction when the soft switch machine of delaying, and then the soft switch deletion is data cached accordingly;
(32) service parameter modification, increase, the deletion action of initiating from end side, soft switch reports HLR with information earlier, again by HLR slotting Data Update under soft switch, to finish the data cached renewal of soft switch;
(33) when the user data among the HLR changes, HLR should be synchronized to user data update corresponding soft switch;
(34) when sip user was nullified, the HLR recording user is online message not, and initiatively with user data update in the buffer of this user place soft switch.
Soft switch is the HLR that is chosen as calling subscriber's service according to logical number in the described step (3), when it has only calling subscriber's physical number and when can not find logical number, initiates query requests to the HLR of this soft switch default configuration earlier; If during the HLR that the HLR of this acquiescence is not the calling subscriber to be belonged to, select for use one of following three kinds of modes to finish the selection of HLR again:
(301) polling mode: the soft switch order is initiated query requests to each HLR successively, until the acquisition user data information, or the intact all HLR of poll;
(302) be redirected mode: the HLR of acquiescence has the function of Redirect Server in logic, informs the HLR of the user attaching of looking into by redirection information, and soft switch is initiated query requests according to this redirection information again to the HLR of user attaching equipment;
(303) agent way: the HLR of acquiescence has agent functionality in logic, can finish the HLR function of selecting user attaching, and the user data that inquiry obtains is returned to soft switch.
The present invention is the method that a kind of fixed-line phone network user data is realized centralized management, has the following advantages:
The maximum innovation of the present invention is to introduce the user's integrated data store HLR that guarantees safe operation and dispose in pairs, has realized the centralized management of user data; Utilize again that the soft switch disposal ability is strong, the characteristics of wide coverage, as Service Point Trigger, HLR combines with user's integrated data store with soft switch SS, except the triggering of being responsible for basic service, supplementary service, also can combine, realize the triggering of IN service with intelligent service platform.
The present invention is by access gateway AG, IAD equipment, sip terminal in the flexible exchanging network, and TG is connected PSTN and other communication network with SG, forms a kind of new fixed network framework: the HLR+SS overlay network.This network architecture is simple, reliable operation, the existing network project amount of transformation are little, create easily.And, when opening new business, be no longer dependent on each end office (EO).As long as SS supports, 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 original PSTN 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.
The present invention has realized the plane No. separation by HLR, can dispose new IN service on a large scale for fixed-line phone 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 of the new profit growth point of fixed-line phone network operator developing.
Because HLR centralized stores and leading subscriber data reduce maintenance cost; The management of business datum simultaneously is convenient to the individual business that provides unified more flexibly, respectively.After adopting system of the present invention, make fixed-line phone network greatly near the framework of mobile network and next generation network, can smooth evolution to next generation network, and support mobile service.
The present invention also proposes a kind of method of soft switch visit HLR inquiring user data, wherein Subscriber Number by the logic number section be stored among the HLR respectively, HLR initiatively descends slotting user data, inquiring calling and called user data sequentially according to physical number to the soft switch of user attaching, soft switch is according to the user data that obtains, and operating procedures such as triggering related service all are creation of the present invention.Simple, clear, the reliable operation of these concrete operations steps, the present invention provides technical foundation for expanding fixed network new business etc.
Description of drawings
Fig. 1 is the system configuration schematic diagram that the user data of fixed-line telephone network of the present invention is realized centralized management.
Fig. 2 is soft switch inquiring user data of the present invention and realizes the professional operating process block diagram that triggers.
Fig. 3 is one embodiment of the invention: the calling that soft switch is initiated the calling subscriber, inquiry HLR and obtain user data triggers the operating process block diagram of professional implementation method.
Fig. 4 is an another embodiment of the present invention: when soft switch does not have buffer memory local user data, calling and called user to adhere to two soft switch separately, after inquiry HLR obtains user data, trigger professional operating process sequential chart.
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 user data of specifically introducing a kind of fixed-line telephone network of the present invention is realized the system group network framework of centralized management:
This system comprises flexible exchanging network and public switched telephone network PSTN, wherein flexible exchanging network be by soft switch SS be that key-course, IP Packet Based Network are bearing bed, all kinds of gateways that are provided with Access Layer again (comprise among the figure and SGW SG public switched telephone network PSTN intercommunication and Tandem Gateway TG, access gateway AG, integrated access equipment IAD and initial session protocol SIP equipment; ) the establishment formation; This flexible exchanging network is equivalent to PSTN end office (EO) or a integrated convergence office with SSP function relatively independent with local network PSTN as the overlay network of PSTN, inserts the local user by AG/IAD/SIP, interconnects by SG and TG and local network PSTN; May be provided with a plurality of soft switch in the system, adopt session initiation protocol SIP intercommunication between each soft switch.This system also comprises two isolated nodes of service/application layer:
Intelligent service platform, i.e. the control point of IN service, runs business logic is handled the IN service request, finishes IN service and calls out control, charging and service management function; Adopt SIP SIP or intelligent network application part agreement INAP and soft switch interactive information, all types of user and the sip user that cover for TG gateway, AG gateway, IAD equipment provide various IN services;
User's integrated data store HLR, attaching position register as fixed network, storaging user data, adopt MAP agreement MAP+ or the DIAMETER agreement and the mutual interactive information of each soft switch of expansion, to support the inquiry of user profile, realize the triggering of basic service, IN service or supplementary service; HLR has function from slotting user data to the soft switch of user attaching that initiatively descend; According to the difference of access layer equipment, the user data content of depositing among the HLR is also with different, below respectively brief description it.
User's integrated data store HLR storage user data comprises at least: all kinds user's physical number, logical number, IN service data and supplementary service attribute data, the user that access gateway AG and IAD equipment cover and the basic business data that comprises charge type, calling privilege limit information of sip user, and the positional information of sip user and authorization data; When certain user applied for registration of a plurality of IN service simultaneously, HLR was according to its priority height sequential storage this a plurality of IN service data, and disposablely when inquiring about was handed down to soft switch.
Wherein logical number and physical number are that all types of users have these data.Number that logical number-Subscriber Number DN-be the one number that operator distributes to the user also is the user to be announced to the external world and the identification user of operator and the number that charges, its form are forms E.164, or the form of SIP URI.Physical number-routing number LRN-be that the user attaching network is the user terminal assigned access number, it also is the routing number that switching equipment is sought the true place of user terminal, it is the network internal number, and corresponding with certain physics or virtual port or subscribers feeder in the fixed network switch, this number is not announced to the external world.The IN service data are information such as the IN service sign registered of all types of user, service key, affiliated service control point, active state.The supplementary service attribute is sign, activation of service state, service data information of all types user supplementary service of registering etc.The user's that user, sip user, IAD equipment that the AG IAD covers covers basic business data is described in addition, in addition.Basic business data refers to information such as charge type, calling authority.Contents such as the positional information of description sip user, authorization data.
HLR is as key network element for user's integrated data store, and configuration in pairs is to guarantee reliable operation; Consider place capacity, the handling property of HLR, and the scale of local network or number of users, HLR has two kinds of laying modes in system of the present invention:
Centralized: a pair of HLR equipment is set, and storage user data is identical among these two HLR;
Distributed: be provided with manyly to HLR equipment independent of each other, user data is stored in respectively in the different HLR equipment according to its different logical number section.
Soft switch SS is the control core of this system, each category node in netting by TG connection PSTN: comprise the LS of end office (EO), the TM of tandem exchange, toll switch TS, gateway exchange GW at least; Insert the user by the AG/IAD/SIP terminal.The inquiry of user data and business information is carried out in support to HLR, support is routed to application server or SCP by service access code or user signing contract information, and fit applications server or SCP finish Business Processing, calls out control and billing function for real-time service provides.
SGW SG in the flexible exchanging network Access Layer 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 net and the soft exchanging network, is responsible for termination time division multiplexing 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.
Access gateway AG is the functional entity that flexible exchanging network is used to insert the user, provide user interface to user side, be mainly the analog subscriber interface that inserts ordinary telephone subscriber and xDSL interface, Access Network module the V5 interface, insert the primary rate PRI interface of private branch exchange system PBX etc., these interfaces are circuit and connect.In addition, all adopt the IP interface between other equipment in IAD and the network, wherein: between IAD and the soft switch is that agreement is connected, main at present the employing H.248 or the MGCP agreement; Between IAD and other media gateway is that medium are connected, mainly by IP network voice-bearer stream.
Integrated access equipment IAD is another access function entity in the flexible exchanging network, and the access function of data and voice mainly is provided to the user.The user port number of IAD generally is no more than 48, is generally 2 mouthfuls, 4 mouthfuls, 8 mouthfuls, 16 mouthfuls and 32 mouthfuls, and it is distolateral to be positioned at the user, need not special machine room, generally is positioned over from the nearer place of user, as the corridor of family, office, sub-district or business premises.
Sip terminal is a kind of intelligent terminal of using in the flexible exchanging network, and it directly adopts broadband connection, communicates by letter with adopting session initiation protocol SIP between the soft switch, and multiple application such as voice, video can be provided to the user.The form of sip terminal comprises two kinds of hard terminal and software terminal.
Because sip terminal and IAD terminal are the terminals of direct user oriented side, belong to trustless entity,, between sip terminal and IAD terminal, need to lay edge access control equipment BAC equipment therefore for safety.This equipment connects the internal security zone and the outside public access zone of flexible exchanging network, finish soft switch IAD, sip user service access, ensure flexible exchanging network safety etc., behind this equipment of existence, the address of soft switch is invisible to terminal.
Referring to Fig. 2, introduce system queries user's integrated data store of the present invention, finish professional trigger method:
Phase I: soft switch receives call request;
Second stage: soft switch is determined query object according to the calling source;
Phase III: if query object is the calling subscriber, soft switch elder generation inquiring calling user's business datum then, after having triggered calling subscriber's business, soft switch need position the operation into the soft switch of called service, then, trigger by the business of finishing the called subscriber for the soft switch of called subscriber's service; If query object is the called subscriber, then called subscriber's business triggering work is directly finished in soft switch.The operation in this stage is crucial.
Inquiring user data in the system of the present invention, realize professional trigger method, comprise following concrete steps:
(1) soft switch receives call request;
(2) soft switch is judged query object according to calling out the calling source, if query object is calling subscriber's data, order is carried out subsequent operation; If query object is a called party data, then redirect execution in step (8);
(3) first its buffer of search of soft switch, if when storing the user data of current query object in the buffer, after the business when then triggering this user as caller according to the logical number of calling subscriber's correspondence, redirect execution in step (5); Otherwise soft switch is chosen as the HLR of this calling subscriber's service;
(4) soft switch is initiated the query requests of these calling subscriber's data of inquiry to selected HLR, after HLR receives this query requests, if inquire this calling subscriber's data, then returns all customer data that this calling subscriber stores to soft switch is disposable in HLR; Soft switch with Query Result download, after the caching process, the business of finishing caller according to the logical number of calling subscriber's correspondence triggers; If do not inquire this calling subscriber's data, then the soft switch end call continues;
(5) soft switch is chosen as the soft switch of called subscriber's service according to called subscriber's logical number;
(6) still search for its buffer earlier for the soft switch of called subscriber service, if in buffer, inquire called party data, after then finishing called business and trigger by this soft switch, redirect execution in step (9); Otherwise the query requests of inquiry called subscriber physical number is initiated in this soft switch to the HLR of called subscriber's ownership according to called subscriber's logical number;
(7) if do not inquire this user's physical number in the HLR of called subscriber's ownership, then the soft switch end call continues; Otherwise, the HLR of called subscriber's ownership returns called subscriber's physical number to soft switch, if the user scope that this physical number is to one's name administered is judged in soft switch, then initiate the query requests of inquiry called party data again to this HLR, after HLR receives this query requests, all customer data of in HLR, storing to the disposable called subscriber of returning of soft switch; This soft switch with Query Result download, caching process, after finishing called business again and triggering, redirect execution in step (9); If the not user scope of administration to one's name of this physical number is judged in soft switch, then route the call to the soft switch of called subscriber's ownership according to called subscriber's physical number, the called number form in this moment call control signalling be innings number+logical number;
(8) soft switch of called subscriber's ownership is according to the calling source, carry out user data query and professional triggering work: search for its buffer earlier at the called subscriber, when not having the user data of current query object in the buffer, then initiate the query requests of inquiring user data to the HLR of correspondence according to the called logical number, after obtaining whole user data and downloading, store, trigger the business of this user when called; If do not inquire called party data among this HLR, then the soft switch end call continues;
(9) called subscriber is called out in soft switch, according to called subscriber's return state, sets up and calls out or call failure.
Referring to Fig. 3, introduce an embodiment of the inventive method: soft switch is to the call of its home subscriber, and HLR obtains user data by inquiry, triggers the operating process of professional implementation method:
(1) user A comprises caller physical port a, called logical number B to the soft switch request of making a call in the caller information;
(2) the calling terminal soft switch corresponds to caller physical number A ' according to caller physical port a;
(3) the calling terminal soft switch is inquired about its buffer according to physical number A ', if inquire calling subscriber's data in buffer memory, then the calling terminal soft switch triggers redirect execution in step (9) behind the calling service; If do not inquire calling subscriber's data in buffer memory, order is carried out subsequent operation;
(4) the calling terminal soft switch utilizes physical number A ' to initiate the request of inquiring calling user data to the HLR of acquiescence;
(5) if in the HLR of this acquiescence, inquire calling subscriber's data, then redirect execution in step (8).Otherwise order is carried out subsequent operation;
(6) HLR that the calling terminal soft switch is selected, the location calling subscriber really belongs to;
(7) HLR searches calling subscriber's data under this calling subscriber, if these calling subscriber's data not among this HLR, then redirect execution in step (13); Otherwise order is carried out subsequent operation.
(8) HLR returns calling subscriber's data to the calling terminal soft switch, soft switch download, this user data of buffer memory;
(9) the calling service triggering is carried out in the calling terminal soft switch;
(10) the calling terminal soft switch is inquired about its buffer according to called logical number B, if in buffer memory, inquire called party data, and then redirect execution in step (20); Otherwise order is carried out subsequent operation;
(11) HLR that the called subscriber belongs to is selected, determined to the calling terminal soft switch according to called logical number B, and initiate the request of inquiry called physical number to it, to orientate the soft switch of called service as;
(12) HLR of this called subscriber's ownership searches called physical number, if find called physical number in this HLR, then forwards step (14) to; Otherwise order is carried out subsequent operation;
(13) HLR returns the user to the caller soft switch and does not have information, end of calling;
(14) HLR returns called subscriber's physical number to the caller soft switch;
(15) the calling terminal soft switch according to the physical number that returns confirm should be called local subscriber whether, if the local subscriber continues to inquire about called party data, this soft switch to the user data that returns download, caching process, redirect execution in step again (20); If not the local subscriber, order is carried out subsequent operation;
(16) the calling terminal soft switch routes the call to the called end soft switch into called service;
(17) the called end soft switch receives call request, learn needs inquiries called party data according to call information after, earlier according to its buffer of called logical number inquiry, if find called party data in the buffer, redirect execution in step (20); Otherwise order is carried out subsequent operation;
(18) HLR that the called end soft switch is selected earlier and definite called party data is belonged to initiates query requests to it again;
(19) HLR returns called all customer data, the called end soft switch to user data download, caching process;
(20) the called end soft switch triggers called service; And return called subscriber's response message to the calling terminal soft switch, set up and call out or call failure; Finish whole call flows.
Referring to Fig. 4, when introducing two user M, N and belonging to two soft switch control respectively, realize the professional sequential logic schematic diagram that triggers (user data also of no use in the buffer of supposition soft switch own):
(1) call request of user M is received in the Calling Side soft switch, inquires about the HLR into calling subscriber's service;
(2) HLR returns whole user data of calling subscriber M, and data download, caching process are carried out in soft switch;
(3) the Calling Side soft switch triggers the IN service of calling subscriber M according to the user data of calling subscriber M to business platform;
(4) triggered the business of calling subscriber M after, Calling Side soft switch inquiry is the HLR of called subscriber N service, with the soft switch of selecting, orientate as called subscriber N to serve;
(5) HLR of called subscriber N ownership returns the physical number of called subscriber N to the Calling Side soft switch;
(6) the calling terminal soft switch routes the call to the callee side soft switch according to the physical number of called subscriber N;
(7) user data of called subscriber N is inquired about in the callee side soft switch to the HLR for called subscriber N service;
(8) HLR returns whole user data of called subscriber N to the callee side soft switch;
(9) the callee side soft switch is downloaded, behind the buffer memory, is triggered the IN service of called subscriber N the called party data that receives;
(10) callee side soft switch addressing called subscriber N, and according to called subscriber's return state, set up and call out or call failure.
Sign indicating number;
(8) soft switch of called subscriber's ownership is according to the calling source, carry out user data query and professional triggering work: search for its buffer earlier at the called subscriber, when not having the user data of current query object in the buffer, then initiate the query requests of inquiring user data to the HLR of correspondence according to the called logical number, after obtaining whole user data and downloading, store, trigger the business of this user when called; If do not inquire called party data among this HLR, then the soft switch end call continues;
(9) called subscriber is called out in soft switch, according to called subscriber's return state, sets up and calls out or call failure.
Referring to Fig. 3, introduce an embodiment of the inventive method: soft switch is to the call of its home subscriber, and HLR obtains user data by inquiry, triggers the operating process of professional implementation method:
(1) user A comprises caller physical port a, called logical number B to the soft switch request of making a call in the caller information;
(2) the calling terminal soft switch corresponds to caller physical number A ' according to caller physical port a;
(3) the calling terminal soft switch is inquired about its buffer according to physical number A ', if inquire calling subscriber's data in buffer memory, then the calling terminal soft switch triggers redirect execution in step (9) behind the calling service; If do not inquire calling subscriber's data in buffer memory, order is carried out subsequent operation;
(4) the calling terminal soft switch utilizes physical number A ' to initiate the request of inquiring calling user data to the HLR of acquiescence;
(5) if in the HLR of this acquiescence, inquire calling subscriber's data, then redirect execution in step (8).Otherwise order is carried out subsequent operation;
(6) HLR that the calling terminal soft switch is selected, the location calling subscriber really belongs to;
(7) HLR searches calling subscriber's data under this calling subscriber, if these calling subscriber's data not among this HLR, then redirect execution in step (13); Otherwise order is carried out subsequent operation.
(8) HLR returns calling subscriber's data to the calling terminal soft switch, soft switch download, this user data of buffer memory;
(9) the calling service triggering is carried out in the calling terminal soft switch;
(10) the calling terminal soft switch is inquired about its buffer according to called logical number B, if in buffer memory, inquire called party data, and then redirect execution in step (20); Otherwise order is carried out subsequent operation;
(11) HLR that the called subscriber belongs to is selected, determined to the calling terminal soft switch according to called logical number B, and initiate the request of inquiry called physical number to it, to orientate the soft switch of called service as;
(12) HLR of this called subscriber's ownership searches called physical number, if find called physical number in this HLR, then forwards step (14) to; Otherwise order is carried out subsequent operation;
(13) HLR returns the user to the caller soft switch and does not have information, end of calling;
(14) HLR returns called subscriber's physical number to the caller soft switch;
(15) the calling terminal soft switch according to the physical number that returns confirm should be called local subscriber whether, if the local subscriber continues to inquire about called party data, this soft switch to the user data that returns download, caching process, redirect execution in step again (20); If not the local subscriber, order is carried out subsequent operation;
(16) the calling terminal soft switch routes the call to the called end soft switch into called service;
(17) the called end soft switch receives call request, learn needs inquiries called party data according to call information after, earlier according to its buffer of called logical number inquiry, if find called party data in the buffer, redirect execution in step (20); Otherwise order is carried out subsequent operation;
(18) HLR that the called end soft switch is selected earlier and definite called party data is belonged to initiates query requests to it again;
(19) HLR returns called all customer data, the called end soft switch to user data download, caching process;
(20) the called end soft switch triggers called service; And return called subscriber's response message to the calling terminal soft switch, set up and call out or call failure; Finish whole call flows.
Referring to Fig. 4, when introducing two user M, N and belonging to two soft switch control respectively, realize the professional sequential logic schematic diagram that triggers (user data also of no use in the buffer of supposition soft switch own):
(1) call request of user M is received in the Calling Side soft switch, inquires about the HLR into calling subscriber's service;
(2) HLR returns whole user data of calling subscriber M, and data download, caching process are carried out in soft switch;
(3) the Calling Side soft switch triggers the IN service of calling subscriber M according to the user data of calling subscriber M to business platform;
(4) triggered the business of calling subscriber M after, Calling Side soft switch inquiry is the HLR of called subscriber N service, with the soft switch of selecting, orientate as called subscriber N to serve;
(5) HLR of called subscriber N ownership returns the physical number of called subscriber N to the Calling Side soft switch;
(6) the calling terminal soft switch routes the call to the callee side soft switch according to the physical number of called subscriber N;
(7) user data of called subscriber N is inquired about in the callee side soft switch to the HLR for called subscriber N service;
(8) HLR returns whole user data of called subscriber N to the callee side soft switch;
(9) the callee side soft switch is downloaded, behind the buffer memory, is triggered the IN service of called subscriber N the called party data that receives;
(10) callee side soft switch addressing called subscriber N, and according to called subscriber's return state, set up and call out or call failure.
Claims (5)
1, a kind of user data of fixed-line telephone network is realized the method for centralized management, it is characterized in that: comprise the following steps:
(1) soft switch receives call request;
(2) soft switch is judged query object according to calling out the calling source, if query object is calling subscriber's data, order is carried out subsequent operation; If query object is a called party data, then redirect execution in step (8);
(3) first its buffer of search of soft switch, if when storing the user data of current query object in the buffer, after the business when then triggering this user as caller according to the logical number of calling subscriber's correspondence, redirect execution in step (5); Otherwise soft switch is chosen as the HLR of this calling subscriber's service;
(4) soft switch is initiated the query requests of these calling subscriber's data of inquiry to selected HLR, after HLR receives this query requests, if inquire this calling subscriber's data, then returns all customer data that this calling subscriber stores to soft switch is disposable in HLR; Soft switch with Query Result download, after the caching process, the business of finishing caller according to the logical number of calling subscriber's correspondence triggers; If do not inquire this calling subscriber's data, then the soft switch end call continues;
(5) soft switch is chosen as the soft switch of called subscriber's service according to called subscriber's logical number;
(6) still search for its buffer earlier for the soft switch of called subscriber service, if in buffer, inquire called party data, after then finishing called business and trigger by this soft switch, redirect execution in step (9); Otherwise the query requests of inquiry called subscriber physical number is initiated in this soft switch to the HLR of called subscriber's ownership according to called subscriber's logical number;
(7) if do not inquire this user's physical number in the HLR of called subscriber's ownership, then the soft switch end call continues; Otherwise, the HLR of called subscriber's ownership returns called subscriber's physical number to soft switch, if the scope that this physical number is to one's name administered is judged in soft switch, then initiate the query requests of inquiry called party data again to this HLR, after HLR receives this query requests, all customer data of in HLR, storing to the disposable called subscriber of returning of soft switch; This soft switch with Query Result download, caching process, after finishing called business again and triggering, redirect execution in step (9); If the user scope that this physical number is not to one's name administered is judged in soft switch, then route the call to the soft switch of called subscriber's ownership according to called subscriber's physical number, the called number form in this moment call control signalling is: " office number "+" logical number ";
(8) soft switch of called subscriber's ownership is according to the calling source, carry out user data query and professional triggering work: search for its buffer earlier at the called subscriber, when not having the user data of current query object in the buffer, then initiate the query requests of inquiring user data to the HLR of correspondence according to the called logical number, after obtaining whole user data and downloading, store, trigger the business of this user when called; If do not inquire called party data among this HLR, then the soft switch end call continues;
(9) called subscriber is called out in soft switch, according to called subscriber's return state, sets up and calls out or call failure.
2, method according to claim 1, it is characterized in that: described method further comprises following initialization operation: utilize the PSTN user of Tandem Gateway TG and SGW SG access and other users' physical port and the corresponding relation of physical number all to be stored in the soft switch of ownership as office data, wherein: before soft exchanging network is brought into use, by manually in advance AG user's the physical port and the corresponding relation of physical number being write soft switch; When IAD user opens an account, IAD user's the physical port and the corresponding relation of physical number are write soft switch by business support system; The sip user that does not have physical port is that the account number of caller sip user that the User Network Interface uni interface is received is regarded the physical vlan port as, when sip user is opened an account, the corresponding relation of this physical vlan port and physical number is write soft switch by business support system.
3, method according to claim 1 is characterized in that: when soft switch is judged query object according to calling calling source in the described step (2), include following various situation:
(21) calling of initiating by the node of local PSTN net, soft switch receives that the calling number in the ISUP signaling is a physical number, called number is a logical number; The query object of soft switch is calling subscriber's data;
(22) calling of initiating by the AG in the local network, SIP, IAD, the query object of soft switch is calling subscriber's data;
(23) calling of initiating by other soft switch in the local network, the query object of soft switch is a called party data;
(24) via the calling from his net of gateway exchange GW, the query object of soft switch is a called party data;
(25) from the calling of other local fixed-line phone networks, the query object of soft switch is a called party data.
4, method according to claim 1 is characterized in that: when following situation took place, soft switch tackled that the user data of buffer memory in its buffer is edited, retouching operation, with data in the buffer of guaranteeing soft switch and the identical unanimity of data among the HLR:
When (31) inserting user data under inquiry or HLR first, soft switch is this user data of buffer memory immediately, restarts or HLR when initiatively initiating the data delete instruction when the soft switch machine of delaying, and then the soft switch deletion is data cached accordingly;
(32) service parameter modification, increase, the deletion action of initiating from end side, soft switch reports HLR with information earlier, again by HLR slotting Data Update under soft switch, to finish the data cached renewal of soft switch;
(33) when the user data among the HLR changes, HLR should be synchronized to user data update corresponding soft switch;
(34) when sip user was nullified, the HLR recording user is online message not, and initiatively with user data update in the buffer of this user place soft switch.
5, method according to claim 1, it is characterized in that: soft switch is the HLR that is chosen as calling subscriber's service according to logical number in the described step (3), when it has only calling subscriber's physical number and when can not find logical number, initiates query requests to the HLR of this soft switch default configuration earlier; If during the HLR that the HLR of this acquiescence is not the calling subscriber to be belonged to, select for use one of following three kinds of modes to finish the selection of HLR again:
(301) polling mode: the soft switch order is initiated query requests to each HLR successively, until the acquisition user data information, or the intact all HLR of poll;
(302) be redirected mode: the HLR of acquiescence has the function of Redirect Server in logic, informs the HLR of the user attaching of looking into by redirection information, and soft switch is initiated query requests according to this redirection information again to the HLR of user attaching equipment;
(303) agent way: the HLR of acquiescence has agent functionality in logic, can finish the HLR function of selecting user attaching, and the user data that inquiry obtains is returned to soft switch.
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| CN101572754B (en) * | 2009-04-04 | 2012-06-27 | 中国移动通信集团浙江有限公司 | Fixed wireless phone system based on improved fixed phone terminal and applications thereof |
| CN102065519A (en) * | 2009-11-11 | 2011-05-18 | 中国移动通信集团公司 | Data storage equipment, network subsystem and call control method |
| CN101730031A (en) * | 2009-11-25 | 2010-06-09 | 中兴通讯股份有限公司 | Device and method for realizing call break-in in next generation communication network |
| CN103108298B (en) * | 2011-11-10 | 2016-03-23 | 北京信威通信技术股份有限公司 | The implementation method of the whole network calling in a kind of mobile communication system |
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