CN1984094A - Method for selecting medium gateway based on TDM and IP hybrid group network - Google Patents
Method for selecting medium gateway based on TDM and IP hybrid group network Download PDFInfo
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- CN1984094A CN1984094A CN 200610060849 CN200610060849A CN1984094A CN 1984094 A CN1984094 A CN 1984094A CN 200610060849 CN200610060849 CN 200610060849 CN 200610060849 A CN200610060849 A CN 200610060849A CN 1984094 A CN1984094 A CN 1984094A
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Abstract
This invention relates to a system of selection based on the mixed-mode network of time division mulitiplexing TDM and internet protocol IP media gateway MGW, comprising the following steps: in the process of calling, obtain MGW at the TDM loading endpoint; allocate IP loading endpoint on MGW at the TDM loading endpoint, end the selection process of MGW. The invention allocates IP loading endpoint on MGW at the TDM loading endpoint, so there was no need to establish intermediate serial, thus enhance the transmission quality of voice and data.
Description
Technical field
The present invention relates to TDM (Time Division Multiplex, time division multiplexing) and IP (InternetProtocol, Internet protocol) mixed networking technical field relates in particular to a kind of MGW based on TDM and IP mixed networking (Media Gateway, media gateway) system of selection.
Background technology
At CDMA (Code Division Multiple Access, code division multiple access) in the mobile communication system, under soft-exchange construction, carry and separate with control, produce two entity MSCe (Mobile Switching Centeremulation, mobile switching center emulation) and MGW, usually MSCe also serves as MGC (Media Gateway Controller, Media Gateway Controller) control MGW except having function of exchange.In the actual sets network process, often adopt a MSCe to control a plurality of MGW, can reduce networking cost effectively like this.A wherein typical MSCe control a plurality of MGW soft-exchange construction network model as shown in Figure 1, all be to adopt the TDM carrying wherein without the channel (signaling channel or speech channel channel) of IP network.
In the actual sets network process, may there be the situation that adopts TDM and IP mixed networking.The TDM circuit was fixed with being connected of MGW, adopt fixing end points in MGW, and the IP circuit was unfixed with being connected of MGW, and promptly the IP carrying end is interim end points, can distribute under different MGW.
For convenience of description, arrange herein: for MSCe, Calling Side is a side of receipt of call, and callee side is a side of sending calling.
When a MSCe controls a plurality of MGW and calls out, generally be the MGW that selects Calling Side carrying end and place thereof earlier, and then the MGW at selection callee side carrying end and place thereof, the MGW of carrying end ownership is determined by data configuration, when on the MGW of callee side carrying end ownership, adding the callee side carrying end, if the MGW of the MGW of Calling Side carrying end ownership and callee side carrying end ownership is not simultaneously, just need set up inter-burst.Inter-burst is meant because Calling Side is different with the MGW that callee side inserts, and causes connecting at the carrying end in the middle of setting up between the different MG W under the MSCe control.
See also Fig. 2, be that Calling Side adopts TDM carrying (being configured on the MGW), callee side adopts the station to station call bearer path figure of IP carrying (being configured on the 2nd MGW) (for for simplicity, callee side BS (Base Station does not draw among the figure, the base station)), voice and data channel all adopt the TDM carrying between a BS and the MSCe, and voice and data channel all adopt the IP carrying between a MSCe and the 2nd MSCe, and the inter-burst between a MGW and the 2nd MGW adopts the TDM carrying.Suppose that mobile subscriber under the local exchange BS calls out the mobile subscriber under he the 2nd MSCe of office, because the MGW at Calling Side carrying end place is different with the MGW at callee side carrying end place, cause setting up the inter-burst between a MGW to the two MGW, the bearer path of calling is for 1.-3.-4.-5..
See also Fig. 3 and Fig. 4, suppose that first network entity is as the Calling Side entity, second network entity is as the callee side entity, and Calling Side bearer circuit (TDM bearer circuit) is configured on the MGW, and callee side bearer circuit (IP bearer circuit) is configured on the 2nd MGW.
When as shown in Figure 3, inter-burst adopted the TDM carrying: existing bearer path was: 2.-4.-5.-7..
When as shown in Figure 4, inter-burst adopted the IP carrying: existing bearer path was: 2.-3.-5.-6.-8..
See also Fig. 3 and Fig. 4, suppose first network entity as the Calling Side entity, second network entity is as the callee side entity, and Calling Side bearer circuit (IP carrying) is configured on the MGW, and callee side bearer circuit (TDM carrying) is configured on the 2nd MGW.
When as shown in Figure 3, inter-burst adopted the TDM carrying: existing bearer path was: 1.-3.-4.-6..
When as shown in Figure 4, inter-burst adopted the IP carrying: existing bearer path was: 1.-3.-4.-5.-7..
Because above-mentioned prior art scheme is not considered the MGW at the carrying end place of Calling Side in the carrying end of selecting callee side, therefore introduce unnecessary inter-burst easily, thereby cause the reduction of voice and data transmission quality.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of media gateway selection method based on TDM and IP mixed networking that improves voice and data transmission quality.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is: a kind of media gateway MGW system of selection based on time division multiplexing tdm and Internet protocol IP mixed networking is provided, and this method may further comprise the steps:
A, in calling procedure, obtain the MGW at TDM carrying end place;
B, on the MGW at TDM carrying end place the distributing IP carrying end, finish the selection course of MGW.
Described steps A further may further comprise the steps:
A1, in calling procedure, obtain Calling Side earlier or obtain callee side earlier or obtain the bearer types of calling and called side simultaneously, the bearer types of judging which side is the TDM carrying;
A2, obtain the MGW at TDM carrying end place that bearer types is a side of TDM carrying.
When steps A 1 is that then steps A further may further comprise the steps when obtaining the bearer types of Calling Side earlier:
A11, in calling procedure, obtain the Calling Side bearer types;
A12, judge that whether the Calling Side bearer types is the TDM carrying, if, execution in step A13 then, if not, direct execution in step A14 then;
A13, obtain the MGW at Calling Side carrying end place;
A14, obtain the callee side bearer types;
A15, judge that whether the callee side bearer types is the TDM carrying, if, execution in step A16 then;
A16, obtain the MGW at callee side carrying end place.
Described step B further may further comprise the steps:
Judging the callee side bearer types when steps A 15 is not TDM when carrying, execution in step A17 then, and described steps A 17 is: distribute the callee side carrying end on the MGW at Calling Side carrying end place, finish the selection course of MGW;
Obtain the MGW at callee side carrying end place when steps A 16 after, execution in step A18, described steps A 18 is: distribute the Calling Side carrying end on the MGW at callee side carrying end place, finish the selection course of MGW.
When steps A 1 is that then steps A further may further comprise the steps when obtaining the bearer types of callee side earlier:
A21, in calling procedure, obtain the callee side bearer types;
A22, judge that whether the callee side bearer types is the TDM carrying, if, execution in step A23 then, if not, direct execution in step A24 then;
A23, obtain the MGW at callee side carrying end place;
A24, obtain the Calling Side bearer types;
A25, judge that whether the Calling Side bearer types is the TDM carrying, if, execution in step A26 then;
A26, obtain the MGW at Calling Side carrying end place.
Described step B further may further comprise the steps:
Judging the Calling Side bearer types when steps A 25 is not TDM when carrying, execution in step A27 then, and described steps A 27 is: distribute the Calling Side carrying end on the MGW at callee side carrying end place, finish the selection course of MGW;
Obtain the MGW at Calling Side carrying end place when steps A 26 after, execution in step A28, described steps A 28 is: distribute the callee side carrying end on the MGW at Calling Side carrying end place, finish the selection course of MGW.
When steps A 1 is that then steps A further may further comprise the steps when obtaining the bearer types of calling and called side simultaneously:
A31, in calling procedure, obtain Calling Side bearer types and callee side bearer types;
A32. the bearer types of judging which side is the TDM carrying;
A33. obtain bearer types and be the MGW at TDM carrying end place of a side of TDM carrying.
Described Calling Side and callee side are for mobile switching center emulation MSCe, and Calling Side is a side of receipt of call, and callee side is a side of sending calling.
The invention has the beneficial effects as follows: because the present invention's distributing IP carrying end on the MGW at TDM carrying end place, so do not need to set up inter-burst, thus the quality of voice and transfer of data improved.
Description of drawings
Fig. 1 is the network model figure that an existing typical MSCe controls the soft-exchange construction of a plurality of MGW.
Fig. 2 is that existing Calling Side adopts the TDM carrying, and callee side adopts the station to station call bearer path figure of IP carrying.
Fig. 3 is the bearer path figure that existing inter-burst adopts the TDM carrying.
Fig. 4 is the bearer path figure that existing inter-burst adopts the IP carrying.
Fig. 5 is the bearer path figure of TDM of the present invention and IP mixed networking.
Fig. 6 is the flow chart that the present invention is based on the MGW selection of TDM and IP mixed networking.
Embodiment
In the calling procedure that under the situation of TDM and IP mixed networking, carries out, be that Calling Side is the TDM carrying, and callee side is the IP carrying, or Calling Side is the IP carrying, and callee side is under the situation of TDM carrying, when selecting MGW, distributing IP carrying end on the MGW at TDM carrying end place can not need to set up inter-burst like this.
From the angle of a MSCe, TDM and IP mixed networking mainly contain following several situation:
Caller inserts side (A interface) and adopts the TDM carrying, and called access side adopts IP carrying (IP BSS (Base Station System, base station sub-system));
Caller inserts side (A interface) and adopts IP carrying (IP BSS), and called access side adopts the TDM carrying;
Caller inserts side (A interface) and adopts the TDM carrying, and network side is out to adopt IP carrying (SIP (Session Initiation Protocol, Session initiation Protocol) for example;
Caller inserts side (A interface) and adopts IP carrying (IP BSS), network side out employing TDM carrying (for example ISUP (ISDN User Part, ISDNYong Hubufen), TUP (Telephone User Part, Telephone User Part) etc.);
The network side Incoming adopts TDM carrying (for example ISUP, TUP etc.), and called access side (A interface) adopts IP carrying (IP BSS);
The network side Incoming adopts IP carrying (for example SIP), and called access side (A interface) adopts the TDM carrying;
The network side Incoming adopts TDM carrying (for example ISUP, TUP etc.), and the out IP of employing of network side carries (for example SIP);
The network side Incoming adopts IP carrying (for example SIP), and the out TDM of employing of network side carries (for example ISUP, TUP etc.);
More than the situation of various TDM and IP mixed networking can be summed up as two kinds of situations: Calling Side is the TDM carrying, and callee side is the IP carrying; Calling Side is the IP carrying, and callee side is the TDM carrying.
Describe Calling Side below respectively and be the TDM carrying, and callee side be IP carrying and Calling Side is that IP carries, and callee side is how to select MGW under the TDM carrying situation.See also Fig. 5, suppose first network entity as the Calling Side entity, second network entity is as the callee side entity, and the Calling Side bearer circuit is configured on the MGW, and the callee side bearer circuit is configured on the 2nd MGW.
1) Calling Side is TDM carrying and callee side is the IP carrying
See also Fig. 5, Calling Side bearer circuit (TDM bearer circuit) is configured on the MGW, and callee side bearer circuit (IP bearer circuit) is configured on the 2nd MGW.
At first obtain the Calling Side bearer types, be carried as TDM when carrying, obtain the MGW at Calling Side carrying end place earlier, judge that then the callee side carrying is the IP carrying, distributes the callee side carrying end on the MGW at Calling Side carrying end place when determining Calling Side.
As shown in Figure 5, bearer path of the present invention is: 2.-3.-7., do not need to set up inter-burst.
2) Calling Side is IP carrying and callee side is the TDM carrying
See also Fig. 5, Calling Side bearer circuit (IP bearer circuit) is configured on the MGW, and callee side bearer circuit (TDM bearer circuit) is configured on the 2nd MGW.
At first obtain the Calling Side bearer types, when judging that the Calling Side carrying is the IP carrying, do not select earlier the MGW at Calling Side carrying end place, and the MGW at callee side carrying end place is selected in continuation, decide the MGW of called carrying according to the user of the called local subscriber of being or his office, if called is the local exchange mobile subscriber, the general BSC that waits called paging to respond up determines the MGW at callee side carrying end place, if Calling Side need be built carrying (such as carrying out playback etc.) earlier, can not wait page response, judge user place BSC according to sub-district, called subscriber place, select the continuous MGW of this BSC as the MGW of Calling Side carrying and the MGW of callee side carrying; If called is the relaying outbound user, determine the MGW of out carrying ownership according to the result of called number analysis.
As shown in Figure 5, bearer path of the present invention is: 1.-5.-6., do not need to set up inter-burst.
Seeing also Fig. 6, is the flow chart description that the present invention is based on the MGW selection course of TDM and IP mixed networking, and agreement among the figure (TDM, IP) the expression Calling Side adopts the TDM carrying, and callee side adopts the IP carrying; (IP, TDM) the expression Calling Side adopts the IP carrying, and callee side adopts the TDM carrying.
The MGW system of selection that the present invention is based on TDM and IP mixed networking may further comprise the steps:
A1, in calling procedure, obtain the Calling Side bearer types;
A2, judge that whether the Calling Side bearer types is the TDM carrying, if, execution in step A3 then, if not, direct execution in step A4 then;
A3, obtain the MGW at Calling Side carrying end place;
A4, obtain the callee side bearer types;
A5, judge that whether the callee side bearer types is the TDM carrying, if, execution in step A6 then, if not, direct execution in step A7 then;
A6, obtain the MGW at callee side carrying end place, then execution in step A8;
A7, on the MGW at Calling Side carrying end place, distribute the callee side carrying end, finish the selection course of MGW;
A8, on the MGW at callee side carrying end place, distribute the Calling Side carrying end, finish the selection course of MGW.
The present invention is not limited to above-mentioned embodiment, and in calling procedure, the present invention also can obtain the callee side bearer types earlier, or obtains Calling Side bearer types and callee side bearer types simultaneously.
If in calling procedure, obtain the callee side bearer types earlier, the MGW system of selection that then the present invention is based on TDM and IP mixed networking may further comprise the steps:
B1, in calling procedure, obtain the callee side bearer types;
B2, judge that whether the callee side bearer types is the TDM carrying, if, execution in step B3 then, if not, direct execution in step B4 then;
B3, obtain the MGW at callee side carrying end place;
B4, obtain the Calling Side bearer types;
B5, judge that whether the Calling Side bearer types is the TDM carrying, if, execution in step B6 then, if not, direct execution in step B7 then;
B6, obtain the MGW at Calling Side carrying end place, then execution in step B8;
B7, on the MGW at callee side carrying end place, distribute the Calling Side carrying end, finish the selection course of MGW;
B8, on the MGW at Calling Side carrying end place, distribute the callee side carrying end, finish the selection course of MGW.
If in calling procedure, obtain Calling Side bearer types and callee side bearer types simultaneously, the MGW system of selection that then the present invention is based on TDM and IP mixed networking may further comprise the steps:
C1, in calling procedure, obtain Calling Side bearer types and callee side bearer types;
C2. the bearer types of judging which side is the TDM carrying;
C3. obtain bearer types and be the MGW at TDM carrying end place of a side of TDM carrying;
C4. distributing IP carrying end on the MGW at TDM carrying end place finishes the selection course of MGW.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention, all any modifications of being made within the spirit and principles in the present invention, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1, a kind of media gateway MGW system of selection based on time division multiplexing tdm and Internet protocol IP mixed networking is characterized in that this method may further comprise the steps:
A, in calling procedure, obtain the MGW at TDM carrying end place;
B, on the MGW at TDM carrying end place the distributing IP carrying end, finish the selection course of MGW.
2, the method for claim 1 is characterized in that: described steps A further may further comprise the steps:
A1, in calling procedure, obtain Calling Side earlier or obtain callee side earlier or obtain the bearer types of calling and called side simultaneously, the bearer types of judging which side is the TDM carrying;
A2, obtain the MGW at TDM carrying end place that bearer types is a side of TDM carrying.
3, method as claimed in claim 2 is characterized in that: when steps A 1 is that then steps A further may further comprise the steps when obtaining the bearer types of Calling Side earlier:
A11, in calling procedure, obtain the Calling Side bearer types;
A12, judge that whether the Calling Side bearer types is the TDM carrying, if, execution in step A13 then, if not, direct execution in step A14 then;
A13, obtain the MGW at Calling Side carrying end place;
A14, obtain the callee side bearer types;
A15, judge that whether the callee side bearer types is the TDM carrying, if, execution in step A16 then;
A16, obtain the MGW at callee side carrying end place.
4, method as claimed in claim 3 is characterized in that: described step B further may further comprise the steps:
Judging the callee side bearer types when steps A 15 is not TDM when carrying, execution in step A17 then, and described steps A 17 is: distribute the callee side carrying end on the MGW at Calling Side carrying end place, finish the selection course of MGW;
Obtain the MGW at callee side carrying end place when steps A 16 after, execution in step A18, described steps A 18 is: distribute the Calling Side carrying end on the MGW at callee side carrying end place, finish the selection course of MGW.
5, method as claimed in claim 2 is characterized in that: when steps A 1 is that then steps A further may further comprise the steps when obtaining the bearer types of callee side earlier:
A21, in calling procedure, obtain the callee side bearer types;
A22, judge that whether the callee side bearer types is the TDM carrying, if, execution in step A23 then, if not, direct execution in step A24 then;
A23, obtain the MGW at callee side carrying end place;
A24, obtain the Calling Side bearer types;
A25, judge that whether the Calling Side bearer types is the TDM carrying, if, execution in step A26 then;
A26, obtain the MGW at Calling Side carrying end place.
6, method as claimed in claim 5 is characterized in that: described step B further may further comprise the steps:
Judging the Calling Side bearer types when steps A 25 is not TDM when carrying, execution in step A27 then, and described steps A 27 is: distribute the Calling Side carrying end on the MGW at callee side carrying end place, finish the selection course of MGW;
Obtain the MGW at Calling Side carrying end place when steps A 26 after, execution in step A28, described steps A 28 is: distribute the callee side carrying end on the MGW at Calling Side carrying end place, finish the selection course of MGW.
7, method as claimed in claim 2 is characterized in that: when steps A 1 is that then steps A further may further comprise the steps when obtaining the bearer types of calling and called side simultaneously:
A31, in calling procedure, obtain Calling Side bearer types and callee side bearer types;
A32. the bearer types of judging which side is the TDM carrying;
A33. obtain bearer types and be the MGW at TDM carrying end place of a side of TDM carrying.
8, method as claimed in claim 2 is characterized in that: described Calling Side and callee side are for mobile switching center emulation MSCe, and Calling Side is a side of receipt of call, and callee side is a side of sending calling.
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| CNB2006100608493A CN100544326C (en) | 2006-05-23 | 2006-05-23 | Media gateway selection method based on TDM and IP mixed networking |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009012641A1 (en) * | 2007-07-25 | 2009-01-29 | Alcatel Lucent | Service data transmission method and apparatus thereof in the subsystem of base station |
| WO2009033340A1 (en) * | 2007-09-11 | 2009-03-19 | Zte Corporation | A method for supporting a mixed connection between the offices |
| CN101141817B (en) * | 2007-10-12 | 2010-12-01 | 中兴通讯股份有限公司 | Scheduling method, device and communication system of performing load sharing according to gateway load |
| CN101146067B (en) * | 2007-09-26 | 2011-04-06 | 中兴通讯股份有限公司 | A method for realizing AP interface network intercommunication function |
| CN101365189B (en) * | 2008-09-02 | 2011-07-27 | 中国电信股份有限公司 | Method and system implementing speech passing through in mobile network |
| CN101141423B (en) * | 2007-10-12 | 2012-05-23 | 中兴通讯股份有限公司 | Quality of service control method and system to support interoffice IP and TDM hybrid networking |
| WO2014071604A1 (en) * | 2012-11-09 | 2014-05-15 | Lin Ye | Method for selecting media gateway based on tdm and ip hybrid networking |
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2006
- 2006-05-23 CN CNB2006100608493A patent/CN100544326C/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009012641A1 (en) * | 2007-07-25 | 2009-01-29 | Alcatel Lucent | Service data transmission method and apparatus thereof in the subsystem of base station |
| CN101355716B (en) * | 2007-07-25 | 2011-09-28 | 上海贝尔阿尔卡特股份有限公司 | Method and apparatus for transmitting service data of base station subsystem |
| WO2009033340A1 (en) * | 2007-09-11 | 2009-03-19 | Zte Corporation | A method for supporting a mixed connection between the offices |
| CN101127740B (en) * | 2007-09-11 | 2011-07-13 | 中兴通讯股份有限公司 | A method for supporting inter-office mixing connection |
| CN101146067B (en) * | 2007-09-26 | 2011-04-06 | 中兴通讯股份有限公司 | A method for realizing AP interface network intercommunication function |
| CN101141817B (en) * | 2007-10-12 | 2010-12-01 | 中兴通讯股份有限公司 | Scheduling method, device and communication system of performing load sharing according to gateway load |
| CN101141423B (en) * | 2007-10-12 | 2012-05-23 | 中兴通讯股份有限公司 | Quality of service control method and system to support interoffice IP and TDM hybrid networking |
| CN101365189B (en) * | 2008-09-02 | 2011-07-27 | 中国电信股份有限公司 | Method and system implementing speech passing through in mobile network |
| WO2014071604A1 (en) * | 2012-11-09 | 2014-05-15 | Lin Ye | Method for selecting media gateway based on tdm and ip hybrid networking |
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