CN1997084A - An information transfer method, media gateway controller and communication system - Google Patents
An information transfer method, media gateway controller and communication system Download PDFInfo
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Abstract
This invention discloses one information transmission method, which comprises the following steps: media network gate controller analyzes received numbers to judge whether the called number is perfect; when yes, media network gate controller sends the information to the called number to media gate. This invention uses isolation rack to get called number information according to the called number information. This invention also discloses one media network gate controller and communication system.
Description
Technical Field
The present invention relates to the field of communications, and in particular, to an information transfer method, a media gateway controller, and a communication system.
Background
The meaning of the pulse-ended signal I-15 is the end of number, and the ITU-T (international Telecommunication union-telecommunications working group) specifies the main usage scenarios of this signal: in an international call, the signal I-15 needs to be sent immediately following the last bit; in the semi-automatic system, calls to the operator's seat must be terminated at I-15; the signal I15 may be used to indicate the end of the number during a national call.
With the development of the communication field, a framework with separated bearing and control is adopted in the next generation network NGN and the third generation mobile communication 3G network, under the framework, number resources are stored on a media gateway controller MGC, while a media gateway MGW does not store the number resources, and the media gateway is mainly responsible for sending and receiving numbers.
For example, as shown in fig. 1, the media gateway controller communicates with the media gateway according to h.248 protocol, and R2 packet is used as register signaling to interact between the media gateway and the media gateway controller. After receiving the DI (Destination Number, called Number) sent by the MGW1, the MGW2 performs Digitmap matching on the a side of the MGW2 for the DI, and then the MGW2 reports the received DI to the MGC through an R2 address event (R2/R2addr), and the MGC receives the DI and issues the DI to the B side of the MGW2 through an R2/R2addr signal after completing the DI analysis. Because the configurable Digitmap number string has a limited number of bits, and the number of received called numbers may exceed the number of bits of the Digitmap number string, all DI may not be collected at one time by the Digitmap matching method, so that the MGC may receive DI reported by the a side of the MGW2 for multiple times in one call, and may issue DI to the B side of the MGW2 for multiple times. In this case, after the B side of the MGW2 completes one r2/r2addr process, it is unknown whether the MGC will continue to issue new DI to itself, that is, the MGW2 cannot know whether the received called number is complete, so the MGW2 cannot judge whether the pulse termination signal I15 should be sent to the MGW3 of the opposite end, which results in an extension of call connection time, which affects user experience, and reduces the satisfaction of the user to the operator.
Disclosure of Invention
In view of the above, the main objective of the present invention is to provide an information transmission method, a media gateway controller and a communication system, so as to solve the problem that a media gateway cannot know whether a received called number is complete or not under a split architecture.
In order to achieve the purpose, the scheme of the invention is realized as follows:
an information delivery method, said method comprising the steps of:
A. the media gateway controller analyzes the received called number and judges whether the called number is complete;
B. when the called number is complete, the media gateway controller sends a notification that the called number is complete to the media gateway.
Preferably, the step a includes:
the media gateway controller judges whether the called number is complete or not by analyzing the configured number analysis table.
Preferably, in the step B, the media gateway controller sends the end symbol to the media gateway as a notification that the called number is complete.
Preferably, the step B specifically includes:
the media gateway controller sends the called number to the media gateway in real time, and when the called number is complete, the media gateway controller sends an end symbol to the media gateway independently or sends the end symbol carried by the called number to the media gateway; or,
when the called number is complete, the media gateway controller sends the complete called number to the media gateway and independently sends an end symbol to the media gateway; or,
when the called number is complete, the media gateway controller carries the end symbol in the last bit of the complete called number, and sends the complete called number and the end symbol to the media gateway.
Preferably, the end symbol in step B is an arbitrary symbol configured by extending the interfaces of the media gateway and the media gateway controller.
Preferably, the step B further comprises the following steps:
C. and after receiving the complete notification of the called number, the media gateway sends a pulse termination signal to the opposite terminal.
Preferably, the step C specifically includes:
and after receiving the complete notification of the called number, the media gateway sends a pulse termination signal to the opposite terminal after sending the called number.
The invention also provides a communication system, which comprises a media gateway controller and a media gateway, wherein:
the media gateway controller sends a complete notification of the called number to the media gateway after judging that the called number is complete;
and the media gateway receives the notification and learns that the called number is complete, and sends a pulse termination signal to the opposite terminal.
Preferably, the media gateway controller comprises: a processing unit and a transmitting unit; wherein,
the processing unit is used for analyzing the received called number and judging whether the called number is complete;
the sending unit is used for sending a notification that the called number is complete to the media gateway when the called number is complete.
The invention also provides a media gateway controller, which comprises: a processing unit and a transmitting unit; wherein,
the processing unit is used for analyzing the received called number and judging whether the called number is complete;
the sending unit is used for sending a notification that the called number is complete to the media gateway when the called number is complete.
Preferably, the sending unit is configured to send the terminator to the media gateway as a notification that the called number is complete when the called number is complete.
Therefore, the media gateway controller sends the notification that the called number is complete to the media gateway under the condition that the called number is complete, so that the media gateway can know whether the called number received by the media gateway is complete, and further provides a judgment basis for the media gateway whether to send the pulse-ended signal to the opposite terminal, thereby solving the problem of when to send the pulse-ended signal under a separation framework and improving the satisfaction degree of a user to an operator.
Drawings
FIG. 1 is a schematic diagram of networking in the prior art;
FIG. 2 is a flow chart of a first embodiment of the present invention;
FIG. 3 is a diagram illustrating sending address information according to a first embodiment of the present invention;
fig. 4 is a system block diagram of a second embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.
The first embodiment of the invention provides a method for information transmission, firstly, interface protocols are respectively expanded on MGC and MGW, so that MGC sends notification of the completion of the called number to MGW under the condition of analyzing the completion of the called number; the MGW can know that the called number is complete according to the notification that the called number is complete sent by the media gateway controller and perform corresponding processing according to the notification. The specific implementation mode of the method is as follows:
step 101, MGC analyzes received called number DI and sends the received called number to MGW, if the called number DI is complete, then the MGC sends the notification that the called number is complete;
the called number can be received by MGW, matched with Digitmap and reported to MGC, or sent to MGC via No.7 signaling or signaling link;
specifically, the MGC may determine whether the called number DI is complete by analyzing the configured number analysis table;
specifically, the MGC sends an end symbol (the end symbol may be any symbol as long as the symbol does not conflict with the application of the current network and can be implemented by expanding interfaces of the media gateway and the media gateway controller, such as "#") to the MGW as a notification that the called number is complete;
specifically, the timing and manner for transmitting the terminator to the MGW by the MGC include the following:
MGC sends the called number to MGW in real time, when the called number is complete, sends the terminator to MGW separately or sends the terminator to MGW with the called number end bit, wherein, the "sending the terminator to MGW with the called number end bit" can be specifically as follows: supposing that an MGC receives 8-bit called number, receives 2 bits for 4 times each time, sends the number to an MGW after the MGC analyzes the received 2-bit number each time, and adds a terminator to the last bit of the called number when sending the 2-bit called number if the MGC analyzes that the called number is complete; or
When the called number is complete, MGC sends the complete called number to MGW and sends the end symbol to media gateway; or,
when the called number is complete, MGC carries the end symbol in the last bit of the complete called number, and sends the complete called number and end symbol to MGW.
102, the MGW receives the notification that the called number sent by the MGC is complete, and knows that the called number is finished, and then sends a pulse end signal I-15 to the opposite terminal MGW after the called number DI is sent to the opposite terminal MGW to indicate that the DI is sent completely.
In the following, with reference to the above flow and the specific call process, a specific flow after the calling MGC (MGC1) completes the collection of the called number and adds the terminator "#" in one call is described, as shown in fig. 2 (wherein "S" in the message of fig. 2 indicates that the signal is carried in the "[ ]" therebehind, and "E" indicates that the event is carried in the "[ ]" therebehind):
(1) the MGC1 at the calling side issues an occupation signal to the MGW2, the MGW2 sends the occupation signal to the MGW3 at the called side, the MGW3 reports an occupation event to the MGC (MGC2) at the called side, the MGC2 at the called side issues an r2 address event to the MGW3 at the called side according to the occupation event, the MGW3 returns an occupation response to the MGW2, and the MGW2 reports an occupation confirmation event to the MGC at the calling side according to the occupation response;
(2) after receiving the occupancy confirmation event, the MGC1 sends an r2 address signal to the MGW2, wherein the last DI bit of the r2 address signal carries an end symbol "#";
(3) the MGW2 receives the r2 address signal, knows that the last bit of the called number DI carries an end symbol "#", namely knows that the called number is complete, and sends a pulse end signal I-15 to the MGW3 after sending the called number to the MGW 3;
specifically, the process of the MGW2 sending the r2 address signal to the MGW3 may be the case as shown in fig. 3:
the MGW3 receives the MGW2 and sends a response that each called number returns a1 (other response signals, such as a2, may also be used); after receiving the response signal, MGW2 sends the next number, MGW2 determines whether the called number is sent completely according to the end symbol "#", if the next number is the end symbol "#", it indicates that the called number is sent completely, MGW2 sends a pulse end signal I15 to MGW3, and informs MGW3 that the called number is sent completely.
(4) After receiving the pulse end signal, the MGW3 returns a response signal to the MGW2 indicating that the pulse end signal is received, and reports the r2/r2addr event to the MGC2 to perform the subsequent connection process.
Specifically, the response signal returned by the MGW3 to the MGW2 in the step (4) may be a1, a2, a7, A8, a11, a12, or the like.
An embodiment two of the present invention provides a communication system, as shown in fig. 4, where the communication system includes a media gateway 1 and a media gateway controller, where the media gateway controller includes a processing unit and a sending unit, and the processing unit receives and analyzes a received called number DI and determines whether the called number is complete; in case the called number is complete, the sending unit sends a notification that the called number is complete to the media gateway,
specifically, the processing unit analyzes whether the called number is complete according to a configured analysis table;
specifically, the sending unit serves as a notification that the called number is complete by sending the terminator to the media gateway 1. The ending character can be any character as long as the character does not conflict with the application of the current network and the media gateway controller can identify the character and perform corresponding processing according to the character;
specifically, the sending unit may completely collect the called number DI and send the complete called number and the terminator to the media gateway 1 after the processing unit adds the terminator to the last digit of the called number DI; the sending unit can also send the called number processed by the processing unit or the called number of the ending symbol carried by the last bit to the media gateway 1 in real time; the sending unit may also separately send the terminator to the media gateway 1 after the called number is sent.
The media gateway 1 receives the called number and the end sign sent by the media gateway controller, knows that the called number is complete, the media gateway 1 sends the received called number to the opposite end media gateway 2, and sends a pulse end signal I-15 to the opposite end media gateway 2 after sending is finished to inform the opposite end, and the sending of the called number is finished.
In short, the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (11)
1. An information delivery method, comprising:
A. the media gateway controller analyzes the received called number and judges whether the called number is complete;
B. when the called number is complete, the media gateway controller sends a notification that the called number is complete to the media gateway.
2. The method according to claim 1, wherein the step a specifically comprises:
the media gateway controller judges whether the called number is complete or not by analyzing the configured number analysis table.
3. The method of claim 1, wherein in step B, the media gateway controller sends an end indicator to the media gateway as a notification that the called number is complete.
4. The method according to claim 3, wherein the step B specifically comprises:
the media gateway controller sends the called number to the media gateway in real time, and when the called number is complete, the media gateway controller sends an end symbol to the media gateway independently or sends the end symbol carried by the called number to the media gateway; or,
when the called number is complete, the media gateway controller sends the complete called number to the media gateway and independently sends an end symbol to the media gateway; or,
when the called number is complete, the media gateway controller carries the end symbol in the last bit of the complete called number, and sends the complete called number and the end symbol to the media gateway.
5. The method of claim 3, wherein the end-symbol in step B is an arbitrary symbol configured by extending media gateway and media gateway controller interfaces.
6. The method according to any one of claims 1 to 4, wherein step B is followed by the further steps of:
C. and after receiving the complete notification of the called number, the media gateway sends a pulse termination signal to the opposite terminal.
7. The method according to claim 6, wherein step C is specifically:
and after receiving the complete notification of the called number, the media gateway sends a pulse termination signal to the opposite terminal after sending the called number.
8. A communication system comprising a media gateway controller and a media gateway, characterized in that,
the media gateway controller is used for sending a notification of the completeness of the called number to the media gateway after judging that the called number is complete;
and the media gateway is used for acquiring that the called number is complete according to the notification and sending a pulse termination signal to the opposite terminal.
9. The communication system of claim 8, wherein the media gateway controller comprises: a processing unit and a transmitting unit; wherein,
the processing unit is used for analyzing the received called number and judging whether the called number is complete;
the sending unit is used for sending a notification that the called number is complete to the media gateway when the called number is complete.
10. A media gateway controller, said media gateway controller comprising: a processing unit and a transmitting unit; wherein,
the processing unit is used for analyzing the received called number and judging whether the called number is complete;
the sending unit is used for sending a notification that the called number is complete to the media gateway when the called number is complete.
11. The media gateway controller of claim 10, wherein the sending unit is configured to send an end indicator to the media gateway as a notification that the called number is complete when the called number is complete.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010072076A1 (en) * | 2008-12-26 | 2010-07-01 | 中兴通讯股份有限公司 | Number reception method based on media gateway control protocol and media gateway controller |
| CN103905658A (en) * | 2012-12-31 | 2014-07-02 | 中国移动通信集团辽宁有限公司 | Method and device for processing time delay in calling process, and exchange devices |
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2006
- 2006-12-19 CN CN2006101576894A patent/CN1997084B/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010072076A1 (en) * | 2008-12-26 | 2010-07-01 | 中兴通讯股份有限公司 | Number reception method based on media gateway control protocol and media gateway controller |
| CN103905658A (en) * | 2012-12-31 | 2014-07-02 | 中国移动通信集团辽宁有限公司 | Method and device for processing time delay in calling process, and exchange devices |
| CN103905658B (en) * | 2012-12-31 | 2017-02-08 | 中国移动通信集团辽宁有限公司 | Method and device for processing time delay in calling process, and exchange devices |
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| CN1997084B (en) | 2010-04-14 |
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