CN102739878B - Method for acquiring calling information under soft switching architecture and next generation network (NGN) system - Google Patents
Method for acquiring calling information under soft switching architecture and next generation network (NGN) system Download PDFInfo
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- CN102739878B CN102739878B CN201110090638.5A CN201110090638A CN102739878B CN 102739878 B CN102739878 B CN 102739878B CN 201110090638 A CN201110090638 A CN 201110090638A CN 102739878 B CN102739878 B CN 102739878B
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Abstract
The invention relates to a method for acquiring calling information under a soft switching architecture and a next generation network (NGN) system. The method is characterized by: an automatic number identification (ANI) request event and an ANI request signal are defined in a H.248 protocol channel associated signaling packet in advance, a calling information triggering event is set and acquired in a media gateway controller (MGC); when detecting ANI request signaling sent by an inbound end office, an out media gateway (MG) sends the ANI request signal to the MGC; after the ANI request signal is received, the MGC requests the calling information from an incoming office and send the calling information returned by the incoming office to the out MG; the out MG sends the calling information to an outbound end office. The NGN system comprises end offices, the MG and the MGC. By using the method and the system of the invention, the NGN system under the soft switching architecture supports the calling using the traditional channel associated signaling and also supports the calling using the channel associated signaling with the ANI request.
Description
Technical field
The present invention relates to communication network field, under particularly relating to a kind of soft-exchange construction, obtain method and the NGN system of caller information.
Background technology
Next generation network (Next Generation Network, NGN) system for core, realizes the fusion of conventional communication networks and IP network with Internet agreement (Internet Protocol, IP) network.Softswitch technology (Soft Switch, SS) be the core technology of NGN, adopt gateway separation thought, gateway is divided into media gateway (Media Gateway, MG), SGW (Signal Gateway, SG) and Media Gateway Controller (Media Gateway Controller, MGC) three classes, to realize NGN carrying and the framework controlling to be separated.
Caller information realizes many communication services, as charging, and the key message to show etc., in traditional channel associated signalling calling, caller information is generally made up of Caller Category and rear subscriber number, and is stored in the end office (EO) of user place, transmits during calling by register(system) form.For R2 channel associated signalling, caller information is only obtained by Multiple Frequency Control (Multi Frequency Control, MFC) register(system) when receiving or send called number.Publication number is a kind of method that the Chinese patent application of CN101796800A relates to media gateway obtaining calling information, and namely it be utilize MFC Multiple Frequency Control to realize obtaining caller information during transmission or receiving number.
But some channel associated signalling, as Russian R1.5 and Iranian R2-3bit channel associated signalling, MFC is not used to obtain caller information, the line signalling that this kind of channel associated signalling uses a kind of ANI (Automatic Number Identification, ANI) to ask is to junior office request calling number.Caller information is sent to parent office by register signal (being generally multifrequency (Multi Frequency, MF) register signal) after receiving ANI request by junior office, makes parent office obtain caller information.ANI request signal is not related to, so existing soft-exchange construction does not support that this kind of channel associated signalling is to the acquisition of caller information in current H.248 agreement.
Moreover, for realizing authentication, show, the business such as charging, caller information, not only in the transmitting-receiving stage, even needs to obtain in each stage of session establishment.As in Russian R1.5 channel associated signalling, the transmission of ANI request may take the stage at circuit, sends and receives called number stage, ringing phase and speech phase.And the acquisition of caller information, by sending or receiving specific signaling to trigger, as obtained caller information during off-hook, obtains caller information etc. during ring.Also cannot be addressed this problem by the technology of channel associated signalling acquisition caller information in existing soft-exchange construction.
Summary of the invention
Method and the NGN system of caller information is obtained, to solve the existing H.248 agreement not tenaculum ANI channel associated signalling of asking and the caller information problem that can not obtain in each stage of session under the object of this invention is to provide a kind of soft-exchange construction.
Obtain the method for caller information under the invention provides a kind of soft-exchange construction, define ANI request event and ANI request signal in advance in H.248 agreement channel associated signalling bag, and arrange in MGC and obtain caller information trigger event, said method comprises the following steps:
When out MG detects the ANI demand signalling into sending to end office (EO), send ANI request signal to above-mentioned MGC;
After above-mentioned MGC receives ANI request signal, to incoming request caller information, and the caller information that above-mentioned Incoming returns is sent to above-mentioned out MG;
Above-mentioned out MG above-mentioned origination message is sent to above-mentioned go out to end office (EO).
Preferably, above-mentioned ANI request event be defined in H.248 agreement bcas bag or icas bag in;
Above-mentioned ANI request signal be defined in H.248 agreement icas bag or bcas bag in.
Preferably, above-mentioned MGC, when initialization, sends to connected MG and obtains caller information detection event;
The event that detects the acquisition caller information received by above-mentioned MG is stored in local detection list of thing;
Above-mentioned caller information detects event and comprises ANI request event.
Preferably, the caller information that receives of above-mentioned MGC and above-mentioned out MG storage.
Preferably, ANI request signal is sent to above-mentioned MGC by NOTIFY by above-mentioned out MG;
Caller information is sent to above-mentioned out MG by MODIFY message by above-mentioned MGC.
Preferably, above-mentioned out MG performs and operates as follows before sending ANI demand signalling to above-mentioned MGC:
Judge local whether have this caller information called out, if so, then above-mentioned caller information is sent to above-mentioned go out to end office (EO); Otherwise, send ANI request signal to above-mentioned MGC.
Preferably, above-mentioned MGC, before above-mentioned incoming request caller information, performs and operates as follows:
Judge whether this locality has this caller information called out, and if so, then above-mentioned caller information is sent to above-mentioned out MG, otherwise, to above-mentioned incoming request caller information.
Preferably, when above-mentioned out MG detects ANI request signal, apply for a register(system), and providing after end office (EO) by caller information transmission, give back above-mentioned register(system).
Preferably, when above-mentioned Incoming adopts the channel associated signalling identical with striking out to communicate, above-mentioned caller information obtains from Incoming as follows:
Above-mentioned MGC sends ANI request signal and address detected event to Incoming MG;
When above-mentioned Incoming MG detects ANI request signal, send ANI demand signalling to end office (EO) to entering, and the above-mentioned caller information entering to return to end office (EO) is detected event by address above mentioned send to above-mentioned MGC.
Preferably, above-mentioned Incoming MG to above-mentioned enter to send ANI request signal to end office (EO) before, perform and operate as follows:
The address detected event received is stored in local detection list of thing;
Judge whether this locality has this caller information called out, if so, then above-mentioned caller information is detected event by address above mentioned and send to above-mentioned MGC; Otherwise, enter to send ANI request signal to end office (EO) to above-mentioned.
Preferably, above-mentioned Incoming MG sends ANI request signal to end office (EO) to entering, and sends to above-mentioned MGC step specifically to comprise by address detected event the above-mentioned caller information entering to return to end office (EO):
Enter to send ANI request signal to end office (EO) to above-mentioned;
Application register(system);
Store the above-mentioned caller information entering to return to end office (EO);
Give back above-mentioned register(system);
Described caller information is sent to described MGC according to the form of described address detected event.
Preferably, ANI request signal and address detected event are sent to above-mentioned Incoming MG by MODIFY message by above-mentioned MGC;
Caller information is sent to above-mentioned MGC by NOTIFY by above-mentioned Incoming MG.
The present invention also provides a kind of and comprises end office (EO), MG and MGC based on the NGN system under soft-exchange construction,
Above-mentioned end office (EO), for as when going out to end office (EO), sends ANI demand signalling to out MG, or as when entering to end office (EO), returns the caller information of active calls to Incoming MG;
Above-mentioned MG, for when as out MG, detects ANI request event, and when ANI request event being detected, sends ANI request signal to above-mentioned MGC; Or when as Incoming MG, when receiving ANI request signal, sending ANI demand signalling and feeding to end office (EO), and the above-mentioned caller information entering to return to end office (EO) is sent to MGC;
Above-mentioned MGC, for providing the interface arranging and obtain caller information trigger event, and when receiving ANI request signal, sends ANI request signal to MG to entering, and is returned by the caller information received and provide to MG.
Preferably, above-mentioned MG, for when ANI demand signalling being detected, judges whether this locality has this caller information called out; And when receiving the caller information into returning to end office (EO) or above-mentioned MGC, store above-mentioned caller information;
Above-mentioned MGC, for when receiving ANI request signal, judges whether this locality has this caller information called out; And when receiving the caller information that Incoming MG returns, store above-mentioned caller information.
Preferably, above-mentioned MG, for applying for register(system), and providing after end office (EO) receiving the caller information that returns to end office (EO) or sent by caller information, giving back above-mentioned register(system).
The present invention is by expanding H.248 agreement channel associated signalling bag, under making soft-exchange construction, ANI request can obtain caller information in any stage of calling out with road, solve the problem that the existing Softswitch technology channel associated signalling that tenaculum ANI does not ask obtains caller information, channel associated signalling in perfect H.248 agreement, make the calling both having supported to adopt traditional channel associated signalling based on the NGN system under soft-exchange construction, also support to adopt band ANI to ask the calling of channel associated signalling.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms a part of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is based on the NGN system principle diagram under soft-exchange construction;
Fig. 2 is that embodiment of the present invention striking out adopts the flow chart obtaining caller information during the channel associated signalling communication of band ANI request;
Fig. 3 is that embodiment of the present invention Incoming adopts the flow chart obtaining caller information during the channel associated signalling communication of band ANI request;
Fig. 4 is the interacting message figure of acquisition caller information when the embodiment of the present invention is out and Incoming all adopts the channel associated signalling of band ANI request to communicate;
Embodiment
In order to make technical problem to be solved by this invention, technical scheme and beneficial effect clearly, understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
As shown in Figure 1, being based on the NGN system principle diagram under soft-exchange construction, is simplified characterization, MG1 and MG2 is under same MGC, and passing through H.248 protocol communication with MGC, end office (EO) 1, end office (EO) 2 adopt identical channel associated signalling to communicate, and are communicated between docking end office (EO) by IP network.
The present invention is based on the NGN system under soft-exchange construction, its schematic diagram, with reference to Fig. 1, comprises end office (EO), MG and MGC,
End office (EO), for as when going out to end office (EO), sends ANI demand signalling to out MG, or does when for entering to end office (EO), return the caller information of active calls to Incoming MG;
MG, for when as out MG, detect ANI demand signalling, and when ANI demand signalling being detected, application register(system), judges whether this locality has this caller information called out, during the caller information not having this to call out in this locality, send ANI request signal to MGC, and the caller information returned by MGC transmission provides to end office (EO), gives back register(system); Or when as Incoming MG, when receiving ANI request signal, judge whether this locality has this caller information called out, during the caller information not having this to call out in this locality, send ANI demand signalling to feed to end office (EO), and apply for register(system), and be stored into the caller information returned to end office (EO), give back register(system), and above-mentioned caller information is sent to MGC;
MGC, for providing the interface arranging and obtain caller information trigger event, and when receiving ANI request signal, judge whether this locality has this caller information called out, during the caller information not having this to call out in this locality, send ANI request signal to by Incoming MG, and store the caller information that above-mentioned Incoming MG returns, above-mentioned caller information is returned to out MG.
The present invention defines ANI request event and ANI request signal in advance in H.248 agreement channel associated signalling bag,
ANI request event definable is in the bcas bag or icas bag of H.248 standard, and the present embodiment is defined in icas bag:
Event name: ANI asks
Event id: ani (0x000b)
Describe: when MG detects ANI demand signalling, report ANI request signal to MGC
EventsDescriptor parameter: nothing
ObservedEventsDescriptor parameter: nothing
Wherein, ANI demand signalling testing conditions specifies in corresponding channel associated signalling specification;
ANI request signal definable is in the bcas bag or icas bag of H.248 standard, and the present embodiment is defined in icas bag:
Signal name: ANI asks
Signal ID:ani (0x000b)
Describe: MGC sends ANI request signal by MG to end office (EO)
Signal type: Brief
Continue duration: Not Applicable
Additional parameter: nothing
As shown in Figure 2, embodiment of the present invention striking out adopts the flow chart obtaining caller information during the channel associated signalling communication of band ANI request; The present embodiment is based on NGN shown in Fig. 1, if end office (EO) 2 is for going out to end office (EO), be provided with in MGC and obtained caller information trigger event, and MGC also have sent acquisition caller information detection event to connected MG1, MG2 when initialization, this locality in MG1, MG2 is detected in list of thing to have stored and is obtained caller information detection event, comprises the steps:
Step S101: when end office (EO) 2 detects user B request caller information, send ANI demand signalling to MG2;
Step S102:MG2 detects ANI demand signalling, applies for a register(system);
Register(system) generally adopts multifrequency sender.
This locality of MG2 is detected in list of thing to store and is obtained caller information detection event, this event comprises ANI request event, MG2 detects ANI demand signalling and after judging the caller information that this locality does not have this to call out, namely reports ANI request signal to MGC, ask this caller information to MGC.
Step S103: judge whether this locality has this caller information called out, if so, then proceeds to step S111 and performs, otherwise, perform step S104;
Because of in the embodiment of the present invention, caller information is likely in the off-hook stage, ringing phase, send and receive called number stage and speech phase acquisition, that is in call, likely need repeatedly to ask caller information, if therefore all ask to MGC at every turn, then not only increase the interaction times with MGC, also extend acquisition time, the present invention is when first time gets the caller information of active calls, make Incoming MG, MGC and out MG stores above-mentioned caller information, when the caller information of junior office request active calls, if there is the caller information of active calls this locality, then directly return, if no, just upwards report, decrease interaction times, improve system effectiveness.
Step S104: send NOTIFY to MGC, NOTIFY carries ANI request signal SG{icas/ani};
When step S105:MGC receives NOTIFY, return NOTIFY response message;
Step S106: judge whether this locality has this caller information called out, if so, then proceeds to step S109 and performs, otherwise, perform step S107;
Step S107: to incoming request caller information;
The mode that Incoming obtains caller information is determined by the calling channel associated signalling type of Incoming, for different types, adopts different standards to obtain caller information.If the channel associated signalling type that Incoming is identical with the striking out in the present embodiment communicates, then can obtain the flow process of caller information by triggering graph 3 Incoming.
Step S108: store the caller information that Incoming returns;
Step S109: send MODIFY message and carry above-mentioned caller information in MG2, MODIFY message;
The form of caller information in address detected event icasc/addr signal should meet H.248 agreement about regulation.
Caller information in the MODIFY message that step S110:MG2 storage receives;
Step S111: caller information is sent to end office (EO) 2;
Step S112: give back register(system);
If there is caller information MG2 this locality, then performs and terminate to this step.
Step S113: return MODIFY response message to MGC, terminates.
Fig. 3 is that embodiment of the present invention Incoming adopts the flow chart obtaining caller information during the channel associated signalling communication of band ANI request; The present embodiment is based on embodiment illustrated in fig. 2, and caller information obtains from Incoming as follows:
Step S201:MGC sends MODIFY message and carries ANI request signal SG{icas/ani} and address detected event icasc/addr to MG1, MODIFY message;
Address detected event icasc/addr definition in icasc bag H.248, its parameter can comprise called number, calling number and caller type etc., the caller information that Incoming MG is got by this reporting events.
When step S202:MG1 receives MODIFY message, address detected event icasc/addr is wherein stored in local detection list of thing;
Step S203: judge whether this locality has this caller information called out, if so, then perform step S212; Otherwise, perform step S204;
Step S204: send ANI request signal SG{icas/ani} to end office (EO) 1;
ANI request signal SG{icas/ani} may be made up of multiple channel associate signals, concrete according to fixed with road protocol specification.As formed to off-hook and register(system) 500Hz sound by after line signalling for Russian R1.5, ANI request; And be independent line signalling for Iranian R2-3bit, ANI request.
Step S205: application register(system);
Step S206: return MODIFY response message to MGC;
Step S207: end office (EO) 1 returns caller information;
Caller information should send by concrete channel associated signalling specification.
Step S208:MG1 stores above-mentioned caller information, and gives back register(system);
Step S209: caller information is sent to MGC according to address detected event icasc/addr form by NOTIFY;
The caller information that step S210:MGC storage receives;
Step S211: return NOTIFY response message to MG1;
Step S212: above-mentioned caller information is sent to MG2, terminates.
As shown in Figure 4, be the interacting message figure of acquisition caller information when the embodiment of the present invention is out and Incoming all adopts the channel associated signalling of band ANI request to communicate; The present embodiment is equally based on NGN shown in Fig. 1, if end office (EO) 2 is for going out to end office (EO), end office (EO) 1 is for entering to end office (EO), be provided with in MGC and obtained caller information trigger event, and MGC also have sent acquisition caller information detection event to connected MG1, MG2 when initialization, this locality in MG1, MG2 is detected in list of thing to have stored and is obtained caller information detection event, supposes that the present embodiment obtains caller information at first time simultaneously.
When end office (EO) 2 detects user B request caller information, send ANI demand signalling to MG2;
MG2 judges the caller information that this locality does not have this to call out, and sends NOTIFY to MGC;
MGC judges the caller information that this locality does not have this to call out, and sends MODIFY message to MG1, and returns NOTIFY response message to MG2;
MG1 judges the caller information that this locality does not have this to call out, and sends ANI demand signalling to end office (EO) 1, and returns MODIFY response message to MGC;
After end office (EO) 1 receives ANI demand signalling, return caller information to MG1;
After the caller information that MG1 storage receives, by NOTIFY, above-mentioned caller information is sent to MGC;
After the caller information that MGC storage receives, by MODIFY message, the above-mentioned caller information received is sent to MG2, return NOTIFY response message to MG1;
After the caller information that MG2 storage receives, the above-mentioned caller information received is sent to end office (EO) 2, and return MODIFY response message to MGC.
Above-mentioned explanation illustrate and describes a preferred embodiment of the present invention, but as previously mentioned, be to be understood that the present invention is not limited to the form disclosed by this paper, should not regard the eliminating to other embodiments as, and can be used for other combinations various, amendment and environment, and can in invention contemplated scope described herein, changed by the technology of above-mentioned instruction or association area or knowledge.And the change that those skilled in the art carry out and change do not depart from the spirit and scope of the present invention, then all should in the protection range of claims of the present invention.
Claims (14)
1. under a soft-exchange construction, obtain the method for caller information, it is characterized in that, ANI ANI request event and ANI request signal is defined in advance in H.248 agreement channel associated signalling bag, and acquisition caller information trigger event is set in media gateway controller MGC, said method comprising the steps of:
When out media gateway MG detects out the ANI demand signalling sent to end office (EO), send ANI request signal to described MGC;
After described MGC receives ANI request signal, to incoming request caller information, and the caller information that described Incoming returns is sent to described out MG;
Described out MG goes out to end office (EO) described in being sent to by described origination message;
When described Incoming adopts the channel associated signalling identical with striking out to communicate, described caller information obtains from Incoming as follows:
Described MGC sends ANI request signal and address detected event to Incoming MG;
When described Incoming MG detects ANI request signal, send ANI demand signalling to end office (EO) to entering, and the described caller information entering to return to end office (EO) is detected event by address above mentioned send to described MGC.
2. method according to claim 1, is characterized in that,
Described ANI request event be defined in H.248 agreement bcas bag or icas bag in;
Described ANI request signal be defined in H.248 agreement icas bag or bcas bag in.
3. method according to claim 1 and 2, is characterized in that,
Described MGC, when initialization, sends to connected MG and obtains caller information detection event;
The event that detects the acquisition caller information received by described MG is stored in local detection list of thing;
Above-mentioned caller information detects event and comprises ANI request event.
4. method according to claim 1, is characterized in that, the caller information that described MGC and described out MG storage receive.
5. method according to claim 1, is characterized in that,
ANI request signal is sent to described MGC by NOTIFY by described out MG;
Caller information is sent to described out MG by MODIFY message by described MGC.
6. method according to claim 1, is characterized in that, described out MG performs and operates as follows before sending ANI demand signalling to described MGC:
Judge whether this locality has this caller information called out, and goes out to end office (EO) described in if so, then being sent to by described caller information; Otherwise, send ANI request signal to described MGC.
7. the method according to claim 1 or 6, is characterized in that, described MGC, before described incoming request caller information, performs and operates as follows:
Judge whether this locality has this caller information called out, and if so, then described caller information is sent to described out MG, otherwise, to described incoming request caller information.
8. method according to claim 1 and 2, is characterized in that, when described out MG detects ANI request signal, applies for a register(system), and goes out after end office (EO) described in being sent to by caller information, give back described register(system).
9. method according to claim 1, is characterized in that, described Incoming MG to described enter to send ANI request signal to end office (EO) before, perform and operate as follows:
The address detected event received is stored in local detection list of thing;
Judge whether this locality has this caller information called out, and if so, then described caller information is sent to described MGC by described address detected event; Otherwise, enter to send ANI request signal to end office (EO) to described.
10. the method according to claim 1 or 9, is characterized in that, described Incoming MG sends ANI request signal to end office (EO) to entering, and sends to described MGC step specifically to comprise by address detected event the described caller information entering to return to end office (EO):
Enter to send ANI request signal to end office (EO) to described;
Application register(system);
The caller information returned to end office (EO) is entered described in storage;
Give back described register(system);
Described caller information is sent to described MGC according to the form of described address detected event.
11. methods according to claim 1 or 9, is characterized in that,
ANI request signal and address detected event are sent to described Incoming MG by MODIFY message by described MGC;
Caller information is sent to described MGC by NOTIFY by described Incoming MG.
12. 1 kinds, based on the next generation network system under soft-exchange construction, comprise end office (EO), MG and MGC, it is characterized in that,
Described end office (EO), for as when going out to end office (EO), sends ANI demand signalling to out MG, or as when entering to end office (EO), returns the caller information of active calls to Incoming MG;
Described MG, for when as out MG, detects ANI request event, and when ANI request event being detected, sends ANI request signal to described MGC; Or when as Incoming MG, when receiving ANI request signal, sending ANI demand signalling and feeding to end office (EO), and the described caller information entering to return to end office (EO) is sent to MGC;
Described MGC, for providing the interface arranging and obtain caller information trigger event, and when receiving ANI request signal, sends ANI request signal to MG to entering, and is returned by the caller information received and provide to MG;
When described Incoming adopts the channel associated signalling identical with striking out to communicate, described caller information obtains from Incoming as follows:
Described MGC sends ANI request signal and address detected event to Incoming MG;
When described Incoming MG detects ANI request signal, send ANI demand signalling to end office (EO) to entering, and the described caller information entering to return to end office (EO) is detected event by address above mentioned send to described MGC.
13. NGN systems according to claim 12, is characterized in that,
Described MG, for when ANI demand signalling being detected, judges whether this locality has this caller information called out; And when receiving the caller information into returning to end office (EO) or described MGC, store described caller information;
Described MGC, for when receiving ANI request signal, judges whether this locality has this caller information called out; And when receiving the caller information that Incoming MG returns, store described caller information.
14. NGN systems according to claim 12 or 13, is characterized in that,
Described MG, for applying for register(system), and providing after end office (EO) receiving the caller information that returns to end office (EO) or sent by caller information, giving back described register(system).
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| CN201110090638.5A CN102739878B (en) | 2011-04-12 | 2011-04-12 | Method for acquiring calling information under soft switching architecture and next generation network (NGN) system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1933671A (en) * | 2006-09-29 | 2007-03-21 | 华为技术有限公司 | Method, system and media gateway for obtaining dialing number information |
| CN101175069A (en) * | 2006-10-31 | 2008-05-07 | 华为技术有限公司 | Method and network appliance for adjusting channel associated signalling interface |
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| US20100087182A1 (en) * | 2006-11-02 | 2010-04-08 | Stewart Robert J | System and method for calling party to specify a ring tone used by a called party's mobile phone |
| WO2009086663A1 (en) * | 2007-12-29 | 2009-07-16 | Zte Corporation | Method for media gateway obtaining calling information |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1933671A (en) * | 2006-09-29 | 2007-03-21 | 华为技术有限公司 | Method, system and media gateway for obtaining dialing number information |
| CN101175069A (en) * | 2006-10-31 | 2008-05-07 | 华为技术有限公司 | Method and network appliance for adjusting channel associated signalling interface |
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