CN101803443B - Method and system for scheduling access network hairpin connection transaction - Google Patents
Method and system for scheduling access network hairpin connection transaction Download PDFInfo
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- CN101803443B CN101803443B CN2007801006499A CN200780100649A CN101803443B CN 101803443 B CN101803443 B CN 101803443B CN 2007801006499 A CN2007801006499 A CN 2007801006499A CN 200780100649 A CN200780100649 A CN 200780100649A CN 101803443 B CN101803443 B CN 101803443B
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Abstract
A method and system for scheduling access network hairpin transaction, the method comprises, the hairpin transaction configuring module configuring many terminals that request the hairpin transaction to a hairpin group; the first media descriptor handling module on the receiving side building the TDM resource media descriptor based on the TDM resource scheduling request sent by the sending side and sending it to the second media descriptor handling module on the sending side; the second media descriptor handling module receiving the TDM resource media descriptor and parsing it, sending the parsed TDM resource scheduling request to the TDM resource uniform managing module; the TDM resource uniform managing module searching the TDM resource distribution table after receiving the TDM resource scheduling request, finding the relative information to the TDM resource and scheduling the hairpin transaction based on the relative information. Therefore, the invention can uniformly schedule the whole resources in the access network and configure hairpin transaction for the terminal accessable through circuit exchange.
Description
Technical field
The present invention relates to the communications field, more specifically, the hair clip that relates to a kind of Access Network connects (below be called hairpin) professional concocting method and system.
Background technology
In common VoIP (Voice over Internet Protocol transmits voice, the i.e. networking telephone through Internet Protocol) access scheme, user terminal is linked into soft switch (SS) through WMG (MG) according to agreement H.248.When carrying out Circuit-switched terminal under the same WMG when calling out each other; Be generally these terminals and be equipped with the hairpin business; Make these terminals to come transferring voice through circuit switching; With saving RTP (Real-time Transport Protocol below is called RTP) media channel resource, and improve speech quality.Hairpin is the connection of the curved or U type of a kind of hair clip, is meant the direction of calling out by its arrival is sent the ability of going back.
But in common VoIP access scheme, the terminal under the different WMGs is isolated each other, even these terminals can couple together through circuit switching, can not dispose the hairpin business for them.This is because Access Network is to be made up of each isolated each other WMG, and resource can not be shared between each WMG, is not the notion of real " net ", has limited the flexibility of business configuration.
Summary of the invention
Thereby; The invention provides professional concocting method of a kind of hairpin and system; Be used to the user terminal that all circuit switching can reach and carry out the hairpin business, having broken can only be in the professional restriction of same medium gateway internal configuration hairpin in traditional VoIP access scheme.
According to an aspect of the present invention, a kind of hairpin is provided professional concocting method, has may further comprise the steps: step 1, hairpin business configuration module will be asked the professional a plurality of terminal configuration to of a hairpin hairpin group; Step 2; When transmitter side when receiver side sends the request of Time Division Multiplexing resource allocation, the first media descriptor handling processing module of receiver side according to the TDM resource allocation request construct TDM resource media descriptor handling and send it to the second media descriptor handling processing module of transmitter side; Step 3, when receiving TDM resource media descriptor handling, the second media descriptor handling processing module is resolved TDM resource media descriptor handling, and the TDM resource allocation request that parses is sent to TDM resource unified management module; And step 4, after receiving the request of TDM resource allocation, TDM resource unified management module searches TDM resource allocation table, thus find the relevant information of TDM resource, and allocate the hairpin business according to relevant information.
In step 1, handle below also carrying out: be hairpin service allocation list of hairpin configuration set, wherein, the hairpin service allocation list comprises the ID (sign) at terminal and the ID of hairpin group at least.
Wherein, the request of TDM resource allocation is at least TDM resource allocation request or TDM resource release request.Transmitter side and receiver side are respectively Access Network side and soft switch side.
In addition, in step 4, handle below also carrying out: when the professional allotment of hairpin is failed, carry out the professional allotment of common VoIP.
According to another aspect of the present invention, a kind of hairpin is provided professional mixing system, has comprised: hairpin business configuration module, be positioned at the soft switch side, be used for a plurality of terminal configuration to that request hairpin is professional hairpin group; The first media descriptor handling processing module; Be positioned at the soft switch side; Be used for when Access Network side direction soft switch side is sent the request of TDM resource allocation, request is constructed TDM resource media descriptor handling and is sent it to the second media descriptor handling processing module according to the TDM resource allocation; The second media descriptor handling processing module is positioned at the Access Network side, is used for when receiving TDM resource media descriptor handling, TDM resource media descriptor handling being resolved, and the TDM resource allocation request that parses is sent to TDM resource unified management module; And TDM resource unified management module, be positioned at the Access Network side, be used for after receiving the request of TDM resource allocation, searching the TDM resource allocation table, thereby find the relevant information of TDM resource, and allocate the hairpin business according to relevant information.
Wherein, the request of TDM resource allocation comprises at least: TDM resource allocation request and TDM resource release request.
Hairpin business configuration module also is used to hairpin service allocation list of hairpin configuration set, and wherein, the hairpin service allocation list comprises the ID at terminal and the ID of hairpin group at least.
In addition, TDM resource unified management module also is used for when the professional allotment of hairpin is failed, carrying out the professional allotment of common VoIP.
Thereby; The present invention provides the resource and the device view an of the whole network, promptly in the whole network access scheme; Resource in the whole Access Network is by unified management; Overcome the shortcoming that resource can not be shared between a plurality of nodes in the same Access Network, thereby can carry out unified allocation of resources, be the terminal configuration hairpin business that can reach through circuit switching arbitrarily all resources in whole the Access Network.
Other features and advantages of the present invention will be set forth in specification subsequently, and, partly from specification, become obvious, perhaps understand through embodiment of the present invention.The object of the invention can be realized through the structure that in the specification of being write, claims and accompanying drawing, is particularly pointed out and obtained with other advantages.
Description of drawings
Accompanying drawing is used to provide further understanding of the present invention, and constitutes the part of specification, is used to explain the present invention with embodiments of the invention, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the flow chart according to the professional concocting method of hairpin of the present invention;
Fig. 2 is for setting up the sketch map of signaling procedure according to the hairpin service call of first embodiment of the invention;
Fig. 3 is the sketch map according to the hairpin service call release signaling process of second embodiment of the invention; And
Fig. 4 is the block diagram according to the professional mixing system of hairpin of the present invention.
Embodiment
Below in conjunction with accompanying drawing the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein only is used for explanation and explains the present invention, and be not used in qualification the present invention.
Should be appreciated that in the present invention, involved terminal essence need be configured to the terminal that hairpin business and circuit switching can reach.
Fig. 1 is the flow chart according to the professional concocting method of hairpin of the present invention.As shown in Figure 1, this method may further comprise the steps:
Step S102, hairpin business configuration module will be asked the professional a plurality of terminal configuration to of a hairpin hairpin group;
Step S104; When transmitter side when receiver side sends the request of TDM resource allocation, the first media descriptor handling processing module of receiver side according to the TDM resource allocation request construct TDM resource media descriptor handling and send it to the second media descriptor handling processing module of transmitter side;
Step S106, when receiving TDM resource media descriptor handling, the second media descriptor handling processing module is resolved TDM resource media descriptor handling, and the TDM resource allocation request that parses is sent to TDM resource unified management module; And
Step S108, after receiving the request of TDM resource allocation, TDM resource unified management module searches TDM resource allocation table, thus find the relevant information of TDM resource, and allocate the hairpin business according to relevant information.
In step S102, handle below also carrying out: be hairpin service allocation list of hairpin configuration set, wherein, the hairpin service allocation list comprises the ID at terminal and the ID of hairpin group at least.
Wherein, the request of TDM resource allocation is at least TDM resource allocation request or TDM resource release request.Transmitter side and receiver side are respectively Access Network side and soft switch side.
When Access Network side direction soft switch side was sent the TDM resource allocation request, handle below in step S104, carrying out: the first media descriptor handling processing module was constructed TDM resource media descriptor handling and is sent it to the second media descriptor handling processing module according to the TDM resource allocation request.
When receiving TDM resource media descriptor handling, the second media descriptor handling processing module is resolved TDM resource media descriptor handling, and the TDM resource allocation request that parses is sent to TDM resource unified management module.
After receiving the TDM resource allocation request, TDM resource unified management module searches TDM resource allocation table, thus find the relevant information of TDM resource, and distribute hairpin professional according to relevant information.
Wherein, the first media descriptor handling processing module is a soft switch side media descriptor handling processing module, and the second media descriptor handling processing module is an Access Network side media descriptor handling processing module.
When Access Network side direction soft switch side was sent the TDM resource release request, handle below in step S104, carrying out: the first media descriptor handling processing module was constructed TDM resource media descriptor handling and is sent it to the second media descriptor handling processing module according to the TDM resource release request.
Then, when receiving TDM resource media descriptor handling, the second media descriptor handling processing module is resolved TDM resource media descriptor handling, and the TDM resource release request that parses is sent to TDM resource unified management module.
Next, after receiving the TDM resource release request, TDM resource unified management module searches TDM resource allocation table, thus find the relevant information of TDM resource, and discharge the hairpin business according to relevant information.
Wherein, the first media descriptor handling processing module is a soft switch side media descriptor handling processing module, and the second media descriptor handling processing module is an Access Network side media descriptor handling processing module.
In addition, in step S108, handle below also carrying out: when the professional allotment of hairpin is failed, carry out the professional allotment of common VoIP.
Should be appreciated that the flow process that realization hairpin is professional and the normal process of common voip call are basic identical, next referring to figs. 2 and 3 describing the preferred embodiments of the present invention.
First embodiment
Fig. 2 is for setting up the sketch map of signaling procedure according to the hairpin service call of first embodiment of the invention.As shown in Figure 2, specifically may further comprise the steps:
After treatment S 204, Access Network receive that the signaling of the distribution T DM resource media channel of SS is indicated, to TDM resource unified management module application distribution T DM resource; Wherein, the TDM group ID that TDM resource unified management module at first finds the permanent destination node in the association (context) to use, inquiry " TDM resource allocation table " then; It is identical therefrom to find one " resource under group ID " and this TDM to organize ID, and " resource status " be the TDM passage of " free time ", returns " the TDM resource number " of this TDM resource record; And " resource status " changed into " occupied "; And if the hairpin service fail is then returned in TDM resource allocation failure, it is professional to attempt common VoIP; And
Treatment S 206 is called subscriber's distribution T DM resource, and this step is identical with above-mentioned steps S204 basically, its specific descriptions of Therefore, omited.
Second embodiment
Fig. 3 is the sketch map according to the hairpin service call release signaling process of second embodiment of the invention.As shown in Figure 3, specifically may further comprise the steps:
Treatment S 302; After Access Network receives that the signaling of the release TDM resource media channel of SS is indicated; With TDM resource notification to be discharged to TDM resource unified management module; TDM resource unified management module inquires the record of TDM resource to be discharged in " TDM resource allocation table ", its " resource status " is revised as " free time "; And
Fig. 4 is the block diagram according to the professional mixing system 400 of hairpin of the present invention.As shown in Figure 4, this system comprises: hairpin business configuration module 402, be positioned at the soft switch side, and be used for a plurality of terminal configuration to that request hairpin is professional hairpin group; The first media descriptor handling processing module 404; Be positioned at the soft switch side; Be used for when Access Network side direction soft switch side is sent the request of TDM resource allocation, request is constructed TDM resource media descriptor handling and is sent it to the second media descriptor handling processing module according to the TDM resource allocation; The second media descriptor handling processing module 406 is positioned at the Access Network side, is used for when receiving TDM resource media descriptor handling, TDM resource media descriptor handling being resolved, and the TDM resource allocation request that parses is sent to TDM resource unified management module; And TDM resource unified management module 408, be positioned at the Access Network side, be used for after receiving the request of TDM resource allocation, searching the TDM resource allocation table, thereby find the relevant information of TDM resource, and allocate the hairpin business according to relevant information.
Wherein, the first media descriptor handling processing module 404 is soft switch side media descriptor handling processing module, and the second media descriptor handling processing module 406 is an Access Network side media descriptor handling processing module.
The request of TDM resource allocation comprises at least: TDM resource allocation request and TDM resource release request.
Hairpin business configuration module 402 also is used to hairpin service allocation list of hairpin configuration set, and wherein, the hairpin service allocation list comprises the ID at terminal and the ID of hairpin group at least.
In addition, TDM resource unified management module 408 also is used for when the professional allotment of hairpin is failed, carrying out the professional allotment of common VoIP.
Particularly, in hairpin business configuration module 402, have only and to dispose the hairpin business between two terminals that can reach through circuit switching.Hairpin business configuration module 402 is exactly to be configured to a hairpin to the user that the required hairpin of being configured to business and circuit switching can reach to organize (hairpingroup).The purpose of doing like this is when making other users in the same hairpin group of customer call, just can indicate access network selection TDM resource to call out connection.
Thereby, should be appreciated that hairpin business configuration module 402 is used on SS, hairpin user being carried out the hairpin configuration set.Be configured to the user that can reach in the exchange of Access Network lateral circuit in the hairpin group, each hairpin group has a unique number, is hairpin group ID.After configuration finishes, generate a hairpin service allocation list, each in the table comprises " ID " and " hairpin organizes ID ", form such as following table:
| ID | Hairpin organizes ID |
This hairpin service allocation list is used for retrieving " hairpin organize ID " according to " ID ", and when caller and called belonged to same hairpin group, the calling between them just can be used the hairpin connection.
In addition, the interface of SS and Access Network is an interface H.248.When needs indication access network selection TDM resource is called out connection; The media descriptor handling form of the form of media descriptor handling and rtp streaming is different; Need the new form of definition, the media descriptor handling of format is by SS side media descriptor handling processing module 404 structures.When Access Network is that caller has selected the TDM resource will be when H.248 notifying SS, SS side media descriptor handling processing module 404 also will be resolved the media descriptor handling of TDM resource.
Particularly, SS side media descriptor handling processing module 404 is used for carrying out the H.248 protocol packing and the parsing of TDM resource media descriptor handling in the SS side to the hairpin business, and this module can be used as on the SS the H.248 part of protocol process module (figure does not show).
Because when carrying out the hairpin connection is as media channel with the TDM resource; It is different from rtp streaming during as temporary destination node (temporary termination); Need expand " local and remote descriptors (Local & Remote) " in " flow descriptors (Stream) " of this type destination node, needing increases the capable description of a kind of m, to be different from common medium; And increase the capable description of a kind of a, hairpin crowd is specified.This preferred embodiment is as shown in the table to the expansion of m line description:
This preferred embodiment is as shown in the table to the capable expansion of a:
And the interface of Access Network and SS also is an interface H.248.When having selected the TDM resource as media channel according to the indication of SS; Need be with selected TDM resource through media descriptor handling notice SS; By the opposite end of SS notification call, at this moment need Access Network side media descriptor handling processing module 406 to carry out the structure of TDM resource media descriptor handling again.And during the media channel of the designated caller of called end, also need Access Network side media descriptor handling processing module 406 to carry out the parsing of TDM resource media descriptor handling.
Particularly; Access Network side media descriptor handling processing module 406 is used for carrying out the H.248 protocol packing and the parsing of TDM resource media descriptor handling in the Access Network side to the hairpin business, and this module can be used as the part of the Service Processing Module (figure does not show) of Access Network.
The expansion of 406 pairs of media descriptor handling of this module is identical with SS side media descriptor handling processing module 404.
In TDM resource unified management module 408, all TDM resources of Access Network side are numbered by unified, unified distribution and release.This makes that no matter the user in same hairpin group can discern the numbering of TDM no matter whether be linked on the SS through same H.248 interface, carries out TDM and connects.
TDM resource unified management module 408 is used for the TDM resource of Access Network the whole network is managed, and the distribution of all TDM resources and release are all accomplished via this module.This module 408 is safeguarded one " TDM resource allocation table ", and each in the table comprises " TDM resource number ", " affiliated hairpin group ID ", " resource location " and " resource status ", form such as following table:
| The TDM resource number | Group ID under the resource | Resource location | Resource status |
Wherein, " TDM resource number " is the unique number of a TDM resource in Access Network side the whole network, and each TDM resource of Access Network side all has one " TDM resource number "." group ID under the resource " is the numbering of a group under this TDM, and the TDM time slot that belongs to same group can be interconnected, and can " organizing ID under the resource " and " hairpin organizes ID " that SS goes up configuration be mapped one by one." resource location " is the physical location at this TDM resource place, for ease of instructing to this TDM resource place equipment transmit operation." resource status " is the current state of TDM resource, and state value can be " free time " or " occupied ".
In sum, the present invention has realized that the hairpin that inserts based on the whole network is professional.As long as two user terminals that are in the Access Network are that circuit switching can reach, just can realize on the basis of the whole network TDM resource unified management that the hairpin of these two user terminals is professional.Do like this and can save the RTP port resource greatly, improve quality with the network users voice service.And; The hairpin business can be carried out flexible configuration according to the circuit switching accessibility of Access Network; Break the restriction that hairpin business personnel in the past can only carry out an access node inside; And when in existing Access Network, increasing new resource (like the TDM resource), can expand the existing business ability of Access Network well.
More than be merely the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. scheduling access network hairpin connection transaction method, all the TDM resources that network of being used for achieving a butt joint are allocated and for a plurality of terminals allotment hair clips that can reach through circuit switching connect professionally, it is characterized in that, may further comprise the steps:
Step 1, hair clip connect the business configuration module will ask said hair clip to connect professional said a plurality of terminal configuration to hair clip connection group;
Step 2; When transmitter side when receiver side sends time division multiplex resources allotment request, the first media descriptor handling processing module of said receiver side is constructed the time division multiplex resources media descriptor handling according to said time division multiplex resources allotment request and is sent it to the second media descriptor handling processing module of said transmitter side;
Step 3; When receiving said time division multiplex resources media descriptor handling; The said second media descriptor handling processing module is resolved said time division multiplex resources media descriptor handling, and the said time division multiplex resources allotment request that will parse sends to time division multiplex resources unified management module; And
Step 4; After receiving said time division multiplex resources allotment request; Said time division multiplex resources unified management module searches time division multiplex resources allocation table, thus the relevant information of said time division multiplex resources found, and allocate said hair clip according to said relevant information and connect professional;
Wherein, in said step 1, handle below also carrying out: connect service allocation list for said hair clip connects hair clip of configuration set, wherein, said hair clip connects service allocation list and comprises that at least the sign ID at said terminal is connected the ID of group with said hair clip.
2. method according to claim 1 is characterized in that, said time division multiplex resources allotment request is at least the time division multiplex resources request for allocation or time division multiplex resources discharges request.
3. method according to claim 2 is characterized in that, said transmitter side and said receiver side are respectively Access Network side and soft switch side.
4. method according to claim 1 is characterized in that, in said step 4, handles below also carrying out:
When said hair clip connects professional allotment failure, carry out the professional allotment of common VoIP.
5. scheduling access network hairpin connection transaction system, all time division multiplex resources that network of being used for achieving a butt joint allocate and for a plurality of terminals allotment hair clips that can reach through circuit switching connect professional,
It is characterized in that, comprising:
Hair clip connects the business configuration module, is positioned at the soft switch side, is used for the said hair clip of request is connected professional said a plurality of terminal configuration to hair clip connection group;
The first media descriptor handling processing module; Be positioned at the soft switch side; Be used for when Access Network side direction soft switch side is sent time division multiplex resources allotment request, constructing the time division multiplex resources media descriptor handling and sending it to the second media descriptor handling processing module according to said time division multiplex resources allotment request;
The said second media descriptor handling processing module; Be positioned at said Access Network side; Be used for when receiving said time division multiplex resources media descriptor handling; Said time division multiplex resources media descriptor handling is resolved, and the said time division multiplex resources allotment request that will parse sends to time division multiplex resources unified management module; And
Said time division multiplex resources unified management module; Be positioned at said Access Network side; Be used for after receiving said time division multiplex resources allotment request; Search the time division multiplex resources allocation table, thereby find the relevant information of said time division multiplex resources, and it is professional to allocate said hair clip connection according to said relevant information;
Wherein, said hair clip connects the business configuration module and also is used to a hair clip connection of said hair clip connection configuration set service allocation list, and wherein, said hair clip connects service allocation list and comprises that at least the ID at said terminal is connected the ID of group with said hair clip.
6. system according to claim 5 is characterized in that, said time division multiplex resources allotment request comprises at least: time division multiplex resources request for allocation and time division multiplex resources discharge request.
7. system according to claim 5 is characterized in that, said time division multiplex resources unified management module also is used for when said hair clip connects professional allotment failure, carrying out the professional allotment of common VoIP.
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| Application Number | Priority Date | Filing Date | Title |
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| PCT/CN2007/003977 WO2009086680A1 (en) | 2007-12-29 | 2007-12-29 | Method and system for scheduling access network hairpin connection transaction |
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| CN101803443A CN101803443A (en) | 2010-08-11 |
| CN101803443B true CN101803443B (en) | 2012-08-08 |
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| CN103634193A (en) * | 2012-08-24 | 2014-03-12 | 中兴通讯股份有限公司 | Pure circuit switching realizing method and device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1859250A (en) * | 2006-01-20 | 2006-11-08 | 华为技术有限公司 | Resource managing device, cut-in system and method for securing multiple service quality |
| CN101064906A (en) * | 2006-04-26 | 2007-10-31 | 中兴通讯股份有限公司 | Method for shortening called built-up time of mobile communication system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1859250A (en) * | 2006-01-20 | 2006-11-08 | 华为技术有限公司 | Resource managing device, cut-in system and method for securing multiple service quality |
| CN101064906A (en) * | 2006-04-26 | 2007-10-31 | 中兴通讯股份有限公司 | Method for shortening called built-up time of mobile communication system |
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| CN101803443A (en) | 2010-08-11 |
| WO2009086680A1 (en) | 2009-07-16 |
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