CN101179534A - Information processing method, system and media gateway controller - Google Patents
Information processing method, system and media gateway controller Download PDFInfo
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- CN101179534A CN101179534A CNA2006100635522A CN200610063552A CN101179534A CN 101179534 A CN101179534 A CN 101179534A CN A2006100635522 A CNA2006100635522 A CN A2006100635522A CN 200610063552 A CN200610063552 A CN 200610063552A CN 101179534 A CN101179534 A CN 101179534A
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Abstract
The invention discloses a message processing method which relates to a communications technique. In the method of the invention, a received signaling message is transmitted to a media gateway controller through a first media gateway; the media gateway controller receives the signaling message and transmits the signaling message to a logical exchange unit which is arranged in the media gateway controller; after the logical exchange unit receives the message, the medial gateway controller transmits the message to a second media gateway, and the second media gateway sends the message out from an office By adopting the method in the invention, a TDM connection between the media gateways is replaced by a between-office signaling control circuit, therefore, a plurality of functions like selecting route, maintenance and testing etc. which are applied by the between-office circuit are applied directly, and a performance and use efficiency of the whole network is improved. In addition, the invention also discloses a message processing system and a media gateway controller.
Description
Technical field
The present invention relates to the communication technology, particularly a kind of message treatment method, system and Media Gateway Controller.
Background technology
Along with development of Communication Technique, change NGN (Next Generation Network: next generation network) gradually into based on packet switching based on traditional public switched telephone network (PSTN) (PSTN:Public Switched Telephone Network) of circuit switching.NGN is based on TDM (Time DivisionMultiplexing: speech network time division multiplexing) and the product that merges based on the packet network of IP/ATM.
NGN is to be core with the soft switch, by MGC (Media Gateway Controller: control MG (Media Gateway: media gateway) Media Gateway Controller), (PublicSwitched Telephone Network: the Media Stream that the voice messaging based on TDM Public Switched Telephony Network) converts to based on the IP/ATM packet network transmits with traditional PSTN, as shown in Figure 1, be PSTN and NGN mixed networking schematic diagram.
Because NGN is the product that PSTN speech network and packet network merge, in the process of the network integration, may be based on the consideration of some factor (do not provide the licence plate of IP phone or operator to wish to use TDM to connect such as: operator and improve voice quality etc.), need between two media gateway, also use E1/T1 to connect based on TDM, as shown in Figure 2, in the NGN network, reserved E1/T1 time slot interconnected between media gateway MG1 and the media gateway MG2 on the media gateway controller MGC, MG1 links to each other with PSTN switch LE A, LE C respectively with MG2.The method of call setup is as follows between LE A and the LE C:
Step 101:LE A sends call initiation message by the circuit time slot TS16A between LE A and the MG1 to MGC;
Step 102:MGC be user under the PSTN switch LE C by analyze determining called, need call request be forwarded to LE C by MGC, then selectes an idle time slot TS16 the E1/T1 time slot that MGC reserves between MG1 and MG2;
Step 103:MGC indication MG1 is connected to TS16 on the TS16A; And indication MG2 is connected to TS16 on the circuit time slot TS16C between MG2 and the LE C, thereby realized the signalling interworking of LE A and LE C.
In such scheme, TDM between MG1 and the MG2 connects by reserving the realization of E1/T1 time interval resource, and continuing of calling procedure safeguard all by MGC control, and the functions such as multiple routing, maintenance, test that are applied to interexchange circuit all can not be used, and the performance of whole network and service efficiency are not high.
Summary of the invention
In view of this, the invention provides a kind of message treatment method, system and Media Gateway Controller, the TDM between the MG is connected the circuit that is converted to interoffice signaling control, improve the performance of whole network.
The invention provides a kind of message handling system, described system comprises at least one Media Gateway Controller, at least one logic crosspoint and first media gateway, second media gateway;
Described first media gateway links to each other by the TDM circuit with second media gateway;
Described Media Gateway Controller is controlled described first media gateway and second media gateway, and is used for by described first media gateway and described second media gateway forwards to described logic crosspoint;
Described logic crosspoint is used to receive described message, and described forwards sends out to described Media Gateway Controller by described Media Gateway Controller by second media gateway.
The present invention also provides a kind of message treatment method, and described method comprises step:
Steps A: first media gateway with the message transparent transmission that receives to Media Gateway Controller;
Step B: Media Gateway Controller receives described message, by described first media gateway and second media gateway with described forwards to the logic crosspoint;
Step C: described logic crosspoint receives described message, and with described forwards to described Media Gateway Controller;
Step D: described Media Gateway Controller is sent to second media gateway with described message, described message is sent out by described second media gateway.
The present invention also provides a kind of Media Gateway Controller, and at least one logic crosspoint is set in the described Media Gateway Controller;
Described Media Gateway Controller is used for by at least two media gateway forwards to described logic crosspoint;
Described logic crosspoint is used to receive described message, and with described forwards to described Media Gateway Controller.
Said method, system and Media Gateway Controller are by connecting the TDM between the media gateway in the circuit that is converted to interoffice signaling control, thereby realize these interoffice signaling agreements regulation about the circuit routing, simultaneous hold is handled, circuit is safeguarded, circuit test, the congested control of circuit prevents circuit loop, the TDM that multiple functions such as echo inhibition can be applied directly between the media gateway connects, and has improved network performance.
Description of drawings
Fig. 1 is a prior art NGN network diagram;
Fig. 2 is the NGN networking diagram that uses the E1/T1 circuit to connect between the prior art media gateway;
Fig. 3 is the network diagram of the specific embodiment of the invention one;
Fig. 4 is the schematic flow sheet of the specific embodiment of the invention one;
Fig. 5 is the refinement schematic flow sheet of step 403 among Fig. 4.
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.
Core of the present invention is, TDM between the media gateway is connected the circuit that is converted to interoffice signaling control, thereby realize these interoffice signaling agreements regulation about the circuit routing, simultaneous hold is handled, circuit is safeguarded, circuit test, the congested control of circuit, prevent circuit loop, the TDM that multiple functions such as echo inhibition can be applied directly between the media gateway connects.
The first embodiment of the present invention as shown in Figure 3.MGC control MG1 and MG2 and MG1 link to each other with PSTN switch LE A, LE C respectively with MG2.Do not exist the E1/T1 circuit to connect between MG1 and the MG2 not writing down on the MGC among this embodiment, but at configuration one logic crosspoint LLC on the MGC (a plurality of logic crosspoints of configuration on MGC as required); Simultaneously write down MG1, MG2 in MGC and be connected with LLC by interoffice signaling, physically the link between LLC and MG1, the MG2 is exactly the physical link of MG1 and MG2.
The Message Processing flow process of present embodiment as shown in Figure 4, the message in this flow chart is example with the IAM message among the ISUP/TUP, other message in the ISDN User Part and the message of other interoffice signalings are similar with it.
Step 401:MG1 receive LE A by and MG1 between the IAM message that sends of E1/T1 circuit; Destination Point Code), OPC (Originating Point Code: OPC Origination Point Code) be respectively the signaling point code of MGC, LE A this IAM message is sent to MGC by LE A, i.e. DPC (Destination Point Code:;
Step 402:MG1 with this IAM message transparent transmission to MGC;
In this step, IAM message can be by the M2UA between MGC and the MG1 or M3UA message transparent transmission to MGC.
After step 403:MGC received the message of MG1 transmission, determining needed this IAM message is forwarded to LLC after treatment; Because MG is a physical path equipment, does not have controlled function, therefore, MGC need be by MG1 and MG2 to LLC with this forwards, and concrete steps are seen flow process shown in Figure 5;
Step 404:LLC is sent to MGC with the IAM message that receives, and owing to LLC is arranged among the MGC, so this step can be the internal processes of MGC;
After step 405:MGC receives IAM message, determine that this message needs striking out, then message is sent to MG2, and in this message, indicate DPC, OPC to be respectively the signaling point code of LE C, MGC;
Step 406:MG2 is sent to LE C with this IAM message.
As shown in Figure 5, be the refinement schematic flow sheet of step 403 in the foregoing description, be about to forwards that MGC receives schematic flow sheet to LLC:
After MGC receives the message of MG1 transmission, need to determine to LLC with this forwards; It should be noted that because media gateway is a physical path equipment do not have controlled function, for the TDM between the MG being connected the circuit be converted to interoffice signaling control, MGC can realize this forwards by MG1 and MG2 to LLC;
Step 501:MGC returns this message to MG1, and the DPC that indicates in this message, OPC are respectively the signaling point code of LLC, MGC;
Step 502:MG1 is sent to MG2 by the physical link between MG1 and the MG2 with message with this message, and DPC wherein, OPC are respectively the signaling point code of LLC, MGC;
Transparent transmission was to LLC after step 503:MG2 received the message that MG1 sends; Indicate DPC, OPC to be respectively the signaling point code of LLC, MGC in the message in this step;
From top flow process, when the E1/T1 of this IAM message between MG1 and MG2 transmits, be the equal of that signaling between MGC and the LLC is transmitted, realized the TDM between the media gateway is connected the circuit that is converted to interoffice signaling control, thus realize these interoffice signaling agreements regulations about the circuit routing, simultaneous hold is handled, circuit is safeguarded, circuit test, the congested control of circuit, prevent circuit loop, the TDM that multiple functions such as echo inhibition can be applied directly between the media gateway connects.
Need to prove that method of the present invention is to realize MG1 is connected with TDM between the MG2 being converted to the circuit that interoffice signaling is controlled.Therefore, MG1 can link to each other with the PSTN switch with MG2, also can link to each other with subscriber terminal equipment, and in the step 401, what MG1 received is the message that subscriber equipment sends at this moment, and the message in the step 406 also will send to a subscriber equipment; Certainly, also can be that what to link to each other with MG1 is a PSTN switch and what link to each other with MG2 is a user terminal or what link to each other with MG2 is a PSTN switch and what link to each other with MG1 is a user terminal.
In addition, what describe in the above embodiment of the present invention is MGC by MG1 and MG2 with forwards to LLC, thereby the physical link between MG1 and the MG2 (TDM circuit) is converted to the circuit of interoffice signaling control, thereby realize these interoffice signaling agreements regulation about the circuit routing, simultaneous hold is handled, circuit is safeguarded, circuit test, the congested control of circuit prevents circuit loop, and the TDM that multiple functions such as echo inhibition can be applied directly between the media gateway connects.In fact, also can be that LLC is sent to MGC by MG1 and MG2 with message and realizes this purpose.
In the present embodiment, how MG1 and physical link between the MG2 being converted to LLC is connected with link between MG1, the MG2 is key of the present invention.The front is mentioned, and in order to realize the present invention, need write down MG1, MG2 and be connected (but physically the link between LLC and MG1, the MG2 is exactly the physical link of MG1 and MG2) with LLC by interoffice signaling in MGC.In the present embodiment, two MTP links need be set in MGC, promptly MG1 is to the MTP link Link1 of LLC with by the MTP link Link2 of MG2 to LLC, and the specific requirement of Link1 and Link2 is as follows:
1, on physical path, Link1 is identical with the physical slot by time at Link2 place, is the E1/T1 time slot between MG1 and the MG2;
2, because this Link1, Link2 are the links to LLC, therefore both Signaling Link Code SLC can not be identical, and the Signaling Link Code of the message on this Link1 is identical with the Signaling Link Code of Link2, otherwise then the Signaling Link Code of the message on the Link2 is identical with the Signaling Link Code of Link1;
3, OPC Origination Point Code and the Destination Point Code in the message on Link1 and the Link2 is opposite, like this, when MG1 by Link1 when LLC sends message, because Link1 directly links to each other physically with Link2, therefore MG2 has just received this message from Link2 immediately, and thinks the message that LLC sends to MG2;
4, the physical slot by time at Link1 and Link2 place all is the circuit to LLC, therefore the CIC (cic circuit identification code) of these two circuit can not be identical, and the circuit two ends CIC that physics directly links to each other (CircuitIdentity Code: cic circuit identification code) require necessary unanimity; Therefore Link1 sends after going up the CIC that the message that sends must be changed to CIC the other side's circuit again, and general Link2 sends after going up the CIC that the message that sends must be changed to CIC the other side's circuit again.
After above-mentioned processing, the E1/T1 between MG1 and the MG2 connects the ISUP or the TUP relaying that can be used as between MGC and the LLC have been used.Just be converted to the attended operation of circuit between MGC and the LLC for the attended operation of E1/T1 connection between MG1 and the MG2.Thereby the obturation of ISUP, Telephone User Part regulation, unblocking resets, and leads inspection, and attended operations such as inquiry all can carry out on the E1/T1 between MG1 and the MG2 connects.
In the foregoing description, be example only to adopt interoffice signaling ISUP/TUP between LLC and MG1, the MG2, if other interoffice signalings between LLC and MG1, the MG2 need carry out corresponding setting on MG1, MG2, as follows:
If adopt the PRA signaling to be connected between 1 LLC and MG1, the MG2, MG1 is as network side when MG1 being set on MGC being connected with LLC, and MG2 was as user side when MG2 was connected with LLC;
MG1 is as user side when MG1 perhaps being set on MGC being connected with LLC, and MG2 was as network side when MG2 was connected with LLC.
Then the E1/T1 between MG1 and the MG2 can be connected and use as the PRA relaying between MGC and the LLC.
If adopt R2 signaling to be connected between 2 LLC and MG1, the MG2, on MGC, need not to do any processing in such cases.
By said method, the TDM between MG1, the MG2 can be connected the circuit that is converted to interoffice signaling control.In order to realize the forwarding of signaling, the IAM message in step 401,404 all is sent to MGC, so MGC must be able to distinguish the difference of this this 2 message, and concrete grammar can be:
First kind of mode: MGC distinguishes according to the sender of the message, because 401 message sends to MGC by LE A, and is to send to MGC by LLC in 404;
The second way: MGC distinguishes according to the number of times that receives same message;
In addition, can also add and give differentiation by the concrete parameter of revising in the message (increasing modes such as distinctive mark parameter as modification called number prefix or in signaling).
The present invention also provides a kind of message handling system, comprises at least one Media Gateway Controller, at least one logic crosspoint and first media gateway, second media gateway;
First media gateway links to each other by the TDM circuit with second media gateway;
Media Gateway Controller is controlled first media gateway and second media gateway; And be used for by first media gateway and second media gateway forwards to the logic crosspoint;
The logic crosspoint is used to receive this message, and with this forwards to Media Gateway Controller, send out by second media gateway by Media Gateway Controller.
Wherein, the logic crosspoint is arranged in the Media Gateway Controller, and links to each other with second media gateway with first media gateway by interoffice signaling; Alternatively, the interoffice signaling link of logic crosspoint and first media gateway and media gateway is arranged on the TDM circuit between first media gateway and second media gateway; Further, the interoffice signaling link of logic crosspoint and first media gateway and media gateway is arranged at the same TDM time slot of the TDM circuit between first media gateway and second media gateway.
Said system be Media Gateway Controller pass through first media gateway and second media gateway with forwards to the logic crosspoint, thereby the physical link between first media gateway and second media gateway (TDM circuit) is converted to the circuit of interoffice signaling control, thereby realize these interoffice signaling agreements regulation about the circuit routing, simultaneous hold is handled, circuit is safeguarded, circuit test, the congested control of circuit, prevent circuit loop, the TDM that multiple functions such as echo inhibition can be applied directly between the media gateway connects.
The present invention also provides a kind of Media Gateway Controller, and at least one logic crosspoint is set in this Media Gateway Controller;
The control of this Media Gateway Controller is used for by at least two media gateway forwards to the logic crosspoint;
This logic crosspoint is used to receive this message, and is forwarded to Media Gateway Controller.
Above-mentioned Media Gateway Controller is by increasing the logic crosspoint, therefore message can be sent to the logic crosspoint, and make this message through the physical link (TDM circuit) between the media gateway, thereby this TDM circuit conversion is become the circuit of interoffice signaling control, realize these interoffice signaling agreements regulation about the circuit routing, simultaneous hold is handled, circuit is safeguarded, circuit test, the congested control of circuit, prevent circuit loop, the TDM that multiple functions such as echo inhibition can be applied directly between the media gateway connects.
Though by with reference to some preferred embodiment of the present invention, the present invention is illustrated and describes, those of ordinary skill in the art should be understood that and can do various changes to it in the form and details, and without departing from the spirit and scope of the present invention.
Claims (9)
1. a message handling system is characterized in that, described system comprises at least one Media Gateway Controller, at least one logic crosspoint and first media gateway, second media gateway;
Described first media gateway links to each other by the TDM circuit with second media gateway;
Described Media Gateway Controller is controlled described first media gateway and second media gateway, and is used for by described first media gateway and described second media gateway forwards to described logic crosspoint;
Described logic crosspoint is used to receive described message, and described forwards sends out to described Media Gateway Controller by described Media Gateway Controller by second media gateway.
2. system according to claim 1 is characterized in that, described logic crosspoint is arranged in the described Media Gateway Controller, and links to each other with described second media gateway with described first media gateway by interoffice signaling.
3. system according to claim 2 is characterized in that, the interoffice signaling link of described logic crosspoint and described first media gateway and second media gateway is arranged on the described TDM circuit.
4. system according to claim 3 is characterized in that, described interoffice signaling link is arranged at the same TDM time slot of described TDM circuit.
5. a message treatment method is characterized in that, described method comprises step:
Steps A: first media gateway with the message transparent transmission that receives to Media Gateway Controller;
Step B: Media Gateway Controller receives described message, by described first media gateway and second media gateway with described forwards to the logic crosspoint;
Step C: described logic crosspoint receives described message, and with described forwards to described Media Gateway Controller;
Step D: described Media Gateway Controller is sent to second media gateway with described message, described message is sent out by described second media gateway.
6. method according to claim 5 is characterized in that, described logic crosspoint is arranged in the described Media Gateway Controller, and described step B comprises:
Step B1: Media Gateway Controller receives described signaling message, and described message is sent to first media gateway;
Step B2: described first media gateway is sent to described second media gateway with described message;
Step B3: described second media gateway with described message transparent transmission to described logic crosspoint.
7. method according to claim 6 is characterized in that, and is affiliated among the step B2, described first media gateway by and described second media gateway between the TDM circuit described message is sent to described second media gateway.
8. method according to claim 5 is characterized in that, described step C comprises:
Step C1: described Media Gateway Controller is sent to described second media gateway with described message;
Step C2: described second media gateway sends described message out.
9. a Media Gateway Controller is characterized in that, at least one logic crosspoint is set in the described Media Gateway Controller;
Described Media Gateway Controller is used for by at least two media gateway forwards to described logic crosspoint;
Described logic crosspoint is used to receive described message, and with described forwards to described Media Gateway Controller.
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| Application Number | Priority Date | Filing Date | Title |
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| CN200610063552A CN101179534B (en) | 2006-11-08 | 2006-11-08 | Information processing method, system and media gateway controller |
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| CN200610063552A CN101179534B (en) | 2006-11-08 | 2006-11-08 | Information processing method, system and media gateway controller |
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| CN101179534A true CN101179534A (en) | 2008-05-14 |
| CN101179534B CN101179534B (en) | 2010-05-12 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109348175A (en) * | 2018-10-25 | 2019-02-15 | 北京邮电大学 | Communication means between a kind of monitoring system |
| CN112350982A (en) * | 2019-09-06 | 2021-02-09 | 北京京东尚科信息技术有限公司 | Resource authentication method and device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6799210B1 (en) * | 2000-06-21 | 2004-09-28 | Nortel Networks Limited | Dynamic association of endpoints to media gateway controllers |
| US7120133B1 (en) * | 2000-11-03 | 2006-10-10 | Cisco Technology, Inc. | System and method of linking a wireless signaling protocol with a media gateway control protocol in a packet-based network |
| CN100403744C (en) * | 2003-09-08 | 2008-07-16 | 华为技术有限公司 | System and method for communication between media gateway controller and media gateway |
| CN100401700C (en) * | 2004-08-13 | 2008-07-09 | 中兴通讯股份有限公司 | Method for multimedia terminal point-to-point call inside two private networks |
| CN100546308C (en) * | 2005-04-22 | 2009-09-30 | 华为技术有限公司 | Gateway control protocol message transmission method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109348175A (en) * | 2018-10-25 | 2019-02-15 | 北京邮电大学 | Communication means between a kind of monitoring system |
| CN109348175B (en) * | 2018-10-25 | 2019-05-17 | 北京邮电大学 | Communication means between a kind of monitoring system |
| CN112350982A (en) * | 2019-09-06 | 2021-02-09 | 北京京东尚科信息技术有限公司 | Resource authentication method and device |
| CN112350982B (en) * | 2019-09-06 | 2023-05-30 | 北京京东尚科信息技术有限公司 | Resource authentication method and device |
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