CN1878324A - Method for detecting multi-frequency signal - Google Patents

Abstract

The invention relates to a method for detecting the multi-frequency signal, which comprises: MGC (media gate controller) builds the message with distribution event, and sends said message to MG (media gate); said MG analyzes the distribution event to obtain the event information of multi-frequency signal, and detects relative multi-frequency signal, according to said event information. With said invention, the bandwidth between MGC and MG can be saved to reduce the consumption of MGC and MG devices.

Description

The method that multiple-frequency signal is detected

Technical field

The present invention relates to communication field, relate in particular to a kind of method that multiple-frequency signal is detected.

Background technology

ITU-T (International Telecommunications Union-telecommunication standardization sector) H.248.24 protocol definition two bag: MFD (Multi-Frequency tone Detection, multitone detects) bag and MFG (Multi-Frequency tone Generation, multitone produces) bag.The MFG bag is used for the transmission of multiple-frequency signal, and the MFD bag is used for the detection of multiple-frequency signal.The MFD bag can be used between MGC (Media GatewayController, media gateway controlling) and the MG (Media Gateway, media gateway).

The MFD package definition two groups of incidents, the brief information of these two groups of incidents is as shown in table 1.

The incident of table 1:MFD package definition

EventID
				First group			Second group
mf0(0x0050)	mf6(0x0056)	mfc(0x005c)	ce(0x0004)
				mf1(0x0051)	mf7(0x0057)	mfd(0x005d)
mf2(0x0052)	mf8(0x0058)	mfe(0x005e)
				mf3(0x0053)	mf9(0x0059)	mff(0x005f)
mf4(0x0054)	mfa(0x005a)	mfg(0x0060)
				mf5(0x0055)	mfb(0x005b)	mfh(0x0061)

Mf0～mfh18 in the above-mentioned table 1 incident corresponding respectively different signal code and be used for the detection of signal code and report, the ce incident can detect and report all signal codes of mf0～mfh, but needs the cooperation of Digitmap (number figure).

A kind of method that MFD bag signal code is detected is in the prior art: use above-mentioned first group of incident that MFD bag signal code is detected.Because MGC does not also know to detect what signal code, must be with the disposable MG that is issued to of all incidents of mf0～mfh.

The shortcoming of said method is: MGC need issue a plurality of incidents such as mf0～mfh to MG, and this will cause the waste of following 3 aspects:

1, the message between MGC and the MG is bigger, has wasted bandwidth;

2, MGC need make up a plurality of similar incidents and be handed down to MG, has increased the expense of MGC;

3, MG need resolve a plurality of similar incidents, has increased the expense of MG.

In addition, in the process that the method for stating in the use detects MFD bag signal code, if it is mutual to also have other similar message to need between the internal module of MGC and MG, then the expense of MGC and MG will double respectively again.And usually in call, MGC can issue a lot of similar message to MG, therefore, will greatly influence the performance of MGC and MG equipment under the bigger situation of similar call volume.

Summary of the invention

The purpose of this invention is to provide a kind of method that multiple-frequency signal is detected, thereby can save the bandwidth between MGC and the MG, save the expense of MGC and MG equipment.

The objective of the invention is to be achieved through the following technical solutions:

A kind of method that multiple-frequency signal is detected comprises step:

A, media gateway controller MGC structure carry the message of wildcard incident, and send this message to media gateway MG;

B, described MG resolve described wildcard incident and obtain the multiple-frequency signal event information, according to this multiple-frequency signal event information corresponding multiple-frequency signal are detected.

Described steps A also comprises:

Configuration wildcard incident on MGC and MG uses this wildcard incident to represent multitone to detect all incidents of MFD package definition.

Described steps A also comprises:

Represent described wildcard incident with specific character.

Described step B specifically comprises:

B1, MG resolve this wildcard incident after receiving described message of carrying the wildcard incident, obtain the multiple-frequency signal event information of this wildcard incident representative;

B2, MG obtain corresponding multiple-frequency signal, and this multiple-frequency signal are detected according to the multiple-frequency signal identification information that the needs that receive detect from the described multiple-frequency signal event information that obtains.

5, method according to claim 4 is characterized in that, described method also comprises:

MG reports testing result to described multiple-frequency signal to MGC.

Also comprise:

Configuration wildcard incident on MGC uses this wildcard incident to represent to need between the internal module of MGC one group of incident transmitting, transmits the message of carrying this wildcard incident between the internal module of MGC, and this wildcard incident is resolved.

Also comprise:

Configuration wildcard incident on MG uses this wildcard incident to represent to need between the internal module of MG one group of incident transmitting, transmits the message of carrying this wildcard incident between the internal module of MG, and this wildcard incident is resolved.

As seen from the above technical solution provided by the invention, the present invention replaces one group of incident by defining a wildcard incident, finishes this group incident in the message transmission between MGC and the MG equipment, between the MGC internal module, between the MG internal module.Thereby can save the bandwidth between MGC and the MG, save the expense of MGC and MG equipment, solve and caused bandwidth waste, MGC and the excessive problem of MG cost of device when using the MFD bag in the prior art.

Description of drawings

Fig. 1 is the handling process schematic diagram of the embodiment of the method for the invention;

Fig. 2 is a contrast schematic diagram of having used the call flow of call flow after the method for the invention and prior art.

Embodiment

The invention provides a kind of method that multiple-frequency signal is detected, core of the present invention is: replace one group of incident by defining a wildcard incident, finish this group incident in the message transmission between MGC and the MG equipment, between the MGC internal module, between the MG internal module.

The handling process of the embodiment of the method that multiple-frequency signal is detected of the present invention comprises the steps: as shown in Figure 1

Step 1-1, wildcard incident of configuration replaces a plurality of incidents such as mf0～mfh of MFD package definition on MGC and MG.

The present invention at first need dispose a wildcard incident on MGC and MG, use this wildcard incident to replace a plurality of incidents such as mf0～mfh of MFD package definition.Described wildcard incident can be represented with symbol specific characters such as " * ".

Above-mentioned wildcard incident can be carried in the message transmitted between MGC and MG, receives the MGC or the MG of the message of carrying above-mentioned wildcard incident, can be according to this with joining a plurality of incidents such as mf0～mfh that Identification of events goes out the MFD package definition.

When one group of event information need transmit also have a plurality of event class such as above-mentioned mf0～mfh between the internal module of MGC, MG like, also can need one group of event information transmitting between the internal module that corresponding wildcard incident replaces MGC, MG disposing again on MGC and the MG.

Step 1-2, MGC issue the message of carrying above-mentioned wildcard incident to MG, and MG identifies a plurality of incidents such as mf0～mfh of MFD package definition according to this message, and the multiple-frequency signal of events corresponding correspondence is wherein detected.

When needs used the MFD bag that the multiple-frequency signal between MGC and the MG is detected, MGC issued the message of carrying above-mentioned wildcard incident to MG.After MG receives this message, obtain the wildcard event information that carries in this message, this wildcard incident is resolved, identify a plurality of incidents such as mf0～mfh of MFD package definition according to the definition of above-mentioned wildcard incident.

MG detects the signal code that the opposite end communication apparatus sends over according to the multiple-frequency signal information of a plurality of incident representatives such as mf0～mfh of above-mentioned MFD package definition again, thereby obtain the multiple-frequency signal of needs, after detection finishes, report testing result, promptly detected multiple-frequency signal to MGC.

When like need between the internal module of MGC or MG, transmitting a plurality of event class such as above-mentioned mf0～mfh during one group of information, also between the internal module of MGC or MG, send the message of the wildcard incident of carrying above-mentioned configuration, on the module of finally carrying out event handling, this wildcard incident is resolved and discerned.

After using the method for the invention, when needs use the MFD bag that the multiple-frequency signal between MGC and the MG is detected, from MGC to MG, only need transmit the incident of a wildcard incident rather than one group of a plurality of same length, save bandwidth; MGC only need assemble a wildcard incident rather than assemble one group of a plurality of similar incident, the expense of having saved MGC; MG only need resolve a wildcard incident rather than resolve this and organize a plurality of incidents, has saved the expense of MG.In a word, after use the method for the invention, the expense of the shared bandwidth of MGC and MG, assembling and parsing all will reduce to 1/18 of original scheme.

Wrap in that playback collects the digits or channel associated signalling is applied as example in handling with MFD.Used call flow after the described method of the invention described above and prior art call flow the contrast schematic diagram as shown in Figure 2.

The call flow of prior art has been used call flow after the described method of the invention described above shown in right-hand component among Fig. 2 shown in left-hand component among Fig. 2.Contrast as seen, the call flow of having used after the described method of the invention described above obtains bigger saving than the call flow of prior art on message-length and incident number, also reduced many on the number of message assembling and parsing.

The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.

Claims (7)

1, a kind of method that multiple-frequency signal is detected is characterized in that, comprises step:

A, media gateway controller MGC structure carry the message of wildcard incident, and send this message to media gateway MG;

B, described MG resolve described wildcard incident and obtain the multiple-frequency signal event information, according to this multiple-frequency signal event information corresponding multiple-frequency signal are detected.

2, method according to claim 1 is characterized in that, described steps A also comprises:

Configuration wildcard incident on MGC and MG uses this wildcard incident to represent multitone to detect all incidents of MFD package definition.

3, method according to claim 2 is characterized in that, described steps A also comprises:

Represent described wildcard incident with specific character.

4, according to claim 1,2 or 3 described methods, it is characterized in that described step B specifically comprises:

B1, MG resolve this wildcard incident after receiving described message of carrying the wildcard incident, obtain the multiple-frequency signal event information of this wildcard incident representative;

B2, MG obtain corresponding multiple-frequency signal, and this multiple-frequency signal are detected according to the multiple-frequency signal identification information that the needs that receive detect from the described multiple-frequency signal event information that obtains.

5, method according to claim 4 is characterized in that, described method also comprises:

MG reports testing result to described multiple-frequency signal to MGC.

6, method according to claim 1 is characterized in that, also comprises:

Configuration wildcard incident on MGC uses this wildcard incident to represent to need between the internal module of MGC one group of incident transmitting, transmits the message of carrying this wildcard incident between the internal module of MGC, and this wildcard incident is resolved.

7, method according to claim 1 is characterized in that, also comprises:

Configuration wildcard incident on MG uses this wildcard incident to represent to need between the internal module of MG one group of incident transmitting, transmits the message of carrying this wildcard incident between the internal module of MG, and this wildcard incident is resolved.

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