CN102083231A - Device and method for eliminating noise during polyphonic ringtone playing - Google Patents
Device and method for eliminating noise during polyphonic ringtone playing Download PDFInfo
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- CN102083231A CN102083231A CN2009102415662A CN200910241566A CN102083231A CN 102083231 A CN102083231 A CN 102083231A CN 2009102415662 A CN2009102415662 A CN 2009102415662A CN 200910241566 A CN200910241566 A CN 200910241566A CN 102083231 A CN102083231 A CN 102083231A
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Abstract
The invention provides a device and method for eliminating noise during polyphonic ringtone playing. The device comprises a judgment module, a first control module and a second control module, wherein the judgment module is used for judging whether the current time belongs to a polyphonic ringtone playing stage in the calling process and acquiring a communication stage judgment result; the first control module is used for controlling a subsystem of a base station to stop a DTX (Discontinuous Transmission) function when the communication stage judgment result indicates that the current time belongs to the polyphonic ringtone playing stage; and the second control module is used for controlling the subsystem of the base station to open the DTX (Discontinuous Transmission) function when the communication stage judgment result indicates that the current time does not belong to the polyphonic ringtone playing stage. According to the invention, the noise occurring during polyphonic ringtone playing is eliminated, the quality of polyphonic ringtone playing is improved, and the user experience is improved.
Description
Technical field
The present invention relates to moving communicating field, particularly a kind of device and method that is used to eliminate the polyphonic ringtone playing noise.
Background technology
In voice communication, because both sides speak in turn and the pause of speaking (between word and the word, between sentence and the sentence pause is arranged) in the communication process, make one-way line have time of 60% to be in idle condition usually, gsm system is in order to reduce overall power overhead, call voice has been adopted DTX (Discontinuous Transmission, discontinuous emission) method is referring to standard GSM06.31.
As shown in Figure 1, when not adopting DTX, no matter current time have the people to speak (promptly this is " speech period " constantly, the every 20ms of system generates one " speech frame ") or nobody speaks, and (promptly this is " quiet period " constantly, the every 20ms of system generates one " quiet frame "), the former frame emission that transmitter is always continuous.When adopting DTX, for " speech period ", the former frame emission that transmitter is continuous, for " quiet period ", DTX generates " noise elimination indication frame " (SID, Silence Descriptor), the content of frame is exactly " comfort noise ", and the intermittently emission " noise elimination indication frame " of (per 480 milliseconds) of transmitter.
For voice call, the process of speaking is in fact always desultory, whenever says that a word all is a pulse, and therefore, gsm system can be told " speech period " or " quiet period " more accurately.So discontinuous emission can be good at being applied to can reducing the overall power of whole network in the voice communication course.
Yet there is following technical problem at least in prior art:
Communications Market competition of today is very fierce, and every user's average income (ARPU) value of common carrier is presenting downward trend, looks for the task of top priority that new profit growth point becomes each big operator.Ring Back Tone service traffic carrying capacity since releasing increases swift and violent, becomes second application value-added service very widely after note.The ring-back tone that the enough interesting to listen to music tone ringers of Ring Back Tone service energy replace dull tradition " to pout---toot---".
Yet because the existence of above-mentioned DTX mechanism, and for music tone ringer, its sound spectrum is continuous (all there is sound constantly in each), and the acoustic energy fluctuating is indefinite.So there is very big erroneous judgement in system, when playing the lower music of energy, system will judge by accident and be " quiet period ", and therefore emission " comfort noise frame " causes noise occurring in the polyphonic ringtone playing process, and tonequality is relatively poor, causes the user to experience relatively poor.
Summary of the invention
The purpose of this invention is to provide a kind of device and method that is used to eliminate the polyphonic ringtone playing noise, improve the tonequality of polyphonic ringtone playing, improve user's impression.
To achieve these goals, the embodiment of the invention provides a kind of device that is used to eliminate the polyphonic ringtone playing noise, comprising:
Judge module is used at calling procedure, judges whether current time belongs to the polyphonic ringtone playing stage, obtains a speech phase judged result;
First control module is used for belonging to polyphonic ringtone playing during the stage at described speech phase judged result indication current time, and the control base station sub-system is closed the DTX function;
Second control module is used for not belonging to polyphonic ringtone playing during the stage at described speech phase judged result indication current time, and the control base station sub-system is opened the DTX function.
Above-mentioned device, wherein, described judge module specifically is used for judging according to the signaling of mobile switching centre or base station sub-system whether current time belongs to the polyphonic ringtone playing stage, obtains described speech phase judged result.
To achieve these goals, the embodiment of the invention also provides a kind of method that is used to eliminate the polyphonic ringtone playing noise, comprising:
In calling procedure, judge that whether current time belongs to the polyphonic ringtone playing stage, obtains the speech phase judged result;
Belong to polyphonic ringtone playing during the stage at described speech phase judged result indication current time, the control base station sub-system is closed the DTX function;
Do not belong to polyphonic ringtone playing during the stage at described speech phase judged result indication current time, the control base station sub-system is opened the DTX function.
Above-mentioned method wherein, specifically judges according to the signaling of mobile switching centre or base station sub-system whether current time belongs to the polyphonic ringtone playing stage.
The embodiment of the invention has following beneficial effect:
In the embodiment of the invention, by judging whether current time belongs to the polyphonic ringtone playing stage, and control base station sub-system in the polyphonic ringtone playing stage and close the DTX function, otherwise the control base station sub-system is opened the DTX function, pass through the embodiment of the invention, in the voice signal transmit stage, the DTX function can proper function, reduces the overall power of whole network.And in the polyphonic ringtone playing stage, close the DTX function, make the CRBT signal launch in continuous former frame mode, be judged as during music that therefore DTX can energy be not lower in coloring ring back tone playing " quiet period ", eliminated the noise that occurs in the polyphonic ringtone playing process, improve the quality of polyphonic ringtone playing, improved user's impression.
Description of drawings
The schematic diagram of the frame that the transmitter of Fig. 1 when adopting DTX and not adopting DTX launched;
Fig. 2 is the structural representation of device of the elimination polyphonic ringtone playing noise of the embodiment of the invention;
Fig. 3 is the schematic flow sheet of method of the elimination polyphonic ringtone playing noise of the embodiment of the invention;
Whether Fig. 4 belongs to the schematic flow sheet of the implementation in polyphonic ringtone playing stage for the 4th kind of detection of the embodiment of the invention;
Fig. 5 is applied to the schematic flow sheet of whole call flow for the method for the elimination polyphonic ringtone playing noise in the embodiment of the invention.
Embodiment
In the device and method of the elimination polyphonic ringtone playing noise of the embodiment of the invention, whether detect current time in coloring ring back tone playing, and in coloring ring back tone playing, close the DTX function, guarantee the tonequality of polyphonic ringtone playing, improve user's impression.
The device of the elimination polyphonic ringtone playing noise of the embodiment of the invention comprises as shown in Figure 2:
Judge module is used at calling procedure, judges whether current time belongs to the polyphonic ringtone playing stage, obtains a speech phase judged result;
First control module is used for belonging to polyphonic ringtone playing during the stage at described speech phase judged result indication current time, and the control base station sub-system is closed the DTX function;
Second control module is used for not belonging to polyphonic ringtone playing during the stage at described speech phase judged result indication current time, and the control base station sub-system is opened the DTX function.
The method of the elimination polyphonic ringtone playing noise of the embodiment of the invention comprises as shown in Figure 3:
In specific embodiments of the invention, this judge module can be judged by detecting the signaling of receiving in mobile switching centre, base station controller or base station, be elaborated respectively below.
Mode one
In mode one, judge module judges that by the signaling that detects mobile switching centre whether current time belongs to the polyphonic ringtone playing stage, is described in detail as follows.
When the calling subscriber calls out the called subscriber, MSC under the caller is to called subscriber's ownership HLR inquiry called subscriber's routing iinformation, if the called subscriber is a color ring user, then the called subscriber belongs to HLR fill SS_code in returning to the SRI_ACK signaling of originating switch, MSC under the caller this time calls out to CRBT according to this sign judgement and calls out, and continues to continue by normal flow simultaneously.When called affiliated MSC returns the ACM signaling and wherein state is designated as the free time, caller MSC is according to the CRBT mark, the temporary transient common ring-back tone that blocks called MS C, and make a call to color ring platform, the back that successfully connects is selected personalized ring back tone by IIP according to the logical relation of numbers of calling and called parties and is play to Calling Side.And when caller MSC receives the ANM response message that called MS C returns, remove and being connected of color ring platform, and set up conversation speech channel between the calling and called, polyphonic ringtone playing end so far.
Certainly, above-mentioned makes a call to color ring platform, also can carry out according to the logical relation selection personalized ring back tone of numbers of calling and called parties and to the Calling Side broadcast by IIP after successfully connecting by called MS C, when in case called subscriber's off-hook is replied, called MS C dismounting is connected with color ring platform, respond to caller MSC simultaneously and answer signal, the calling and called user enters normal talking.
Above-mentioned process is applicable to the network of various standards, as GSM network, cdma network etc.
In conjunction with above description, the judge module of first kind of mode of the embodiment of the invention specifically comprises:
First judging unit is used to judge whether mobile switching centre receives the response message that color ring platform returns, and described response message is that color ring platform is set up the message that the request back sends at the playback passage that receives mobile switching centre's transmission, obtains first judged result;
Second judging unit is used to judge whether mobile switching centre removes the playback passage of setting up by the request of setting up of playback passage, obtains second judged result;
First acquiring unit as a result, be used for indicating mobile switching centre to receive the response message that color ring platform returns in described first judged result, and when described playback passage is not removed in the indication of described second judged result, obtain the indication current time and belong to the speech phase judged result in polyphonic ringtone playing stage, otherwise obtain the speech phase judged result that the indication current time does not belong to the polyphonic ringtone playing stage.
In the implementation of first kind of judge module of the present invention, this mobile switching centre can be a calling mobile exchanging center, also can be called mobile switching centre.
When this mobile switching centre is a calling mobile exchanging center, because after calling mobile exchanging center is received the ANM response message that called MS C returns, represent that called off-hook replys, at this moment, calling mobile exchanging center will be removed the playback passage, therefore, this second judging unit is specifically when judging the ANM response message that described calling mobile exchanging center receives that called MS C returns, judge the playback passage that mobile switching centre's dismounting is set up by the request of setting up of playback passage, otherwise judge the playback passage that mobile switching centre does not have dismounting to set up by the request of setting up of playback passage.
Certainly, second judging unit can also judged described calling mobile exchanging center when color ring platform sends dismounting REL message, judge the playback passage that mobile switching centre's dismounting is set up by the request of setting up of playback passage, otherwise judge the playback passage that mobile switching centre does not have dismounting to set up by the request of setting up of playback passage.
Because for implementation, the generating process of above-mentioned signaling almost can be ignored for the user with the actual time difference of removing the polyphonic ringtone playing link.
Certainly, second judging unit can also be when judging described mobile switching centre and receive color ring platform according to the response message that sends after the dismounting REL message that receives, judge the playback passage that mobile switching centre's dismounting is set up by the request of setting up of playback passage, otherwise judge the playback passage that mobile switching centre does not have dismounting to set up by the request of setting up of playback passage.
Mode two
In above-mentioned implementation, judge the calling present located stage by the signaling situation of judging mobile switching centre, and in implementation two, judge by the signaling situation of monitored base stations subsystem.
In the tinkle of bells stage, no matter be common the tinkle of bells, or CRBT, all need to send ring Alerting message, and base station sub-system can be play to caller and wait for the tinkle of bells after receiving ALERTING message to base station sub-system, and behind called off-hook, base station sub-system can receive Connect message, stops to play the tinkle of bells, carries out the transmission of speech.
Therefore, the judge module of the embodiment of the invention second way specifically comprises:
The 3rd judging unit is used to judge whether calling party's base station sub-system receives ring Alerting message, obtains the 3rd judged result;
The 4th judging unit is used to judge whether calling party's base station sub-system receives connection Connect message, obtains the 4th judged result;
Second acquiring unit as a result, be used for receiving ring Alerting message in described the 3rd judged result indication calling party base station sub-system, and described the 4th judged result indication calling party base station sub-system is not received and is connected Connect message, obtain the indication current time and belong to the speech phase judged result that the tinkle of bells is play the stage, do not belong to the speech phase judged result that the tinkle of bells is play the stage otherwise obtain the indication current time.
And first control module belongs to the tinkle of bells broadcast during stage at described speech phase judged result indication current time, and the control base station sub-system is closed the DTX function;
Second control module is used for not belonging to the tinkle of bells broadcast during stage at described speech phase judged result indication current time, and the control base station sub-system is opened the DTX function.
Because for base station sub-system, the broadcast of CRBT and common the tinkle of bells is as broad as long, by above-mentioned mode, closes the DTX function in the tinkle of bells broadcast stage, then also must close the DTX function in the polyphonic ringtone playing stage, has promoted the tonequality of polyphonic ringtone playing.
Mode three
In implementation two, judge by the signaling situation of monitored base stations subsystem.
But should be known in that the message that base station sub-system receives is continued by caller MSC, so in implementation 3, the judge module of the third mode of the embodiment of the invention specifically comprises:
The 5th judging unit is used to judge whether calling side MSC sends ring Alerting message to base station sub-system, obtains the 5th judged result;
The 6th judging unit is used to judge whether calling side MSC sends connection Connect message to base station sub-system, obtains the 6th judged result;
The 3rd acquiring unit as a result, be used for sending ring Alerting message to base station sub-system at described the 5th judged result instruct MS C, and described the 6th judged result instruct MS C does not send to base station sub-system and connects Connect message, obtain the indication current time and belong to the speech phase judged result that the tinkle of bells is play the stage, do not belong to the speech phase judged result that the tinkle of bells is play the stage otherwise obtain the indication current time.
And first control module belongs to the tinkle of bells broadcast during stage at described speech phase judged result indication current time, and the control base station sub-system is closed the DTX function;
Second control module is used for not belonging to the tinkle of bells broadcast during stage at described speech phase judged result indication current time, and the control base station sub-system is opened the DTX function.
Because for base station sub-system, the broadcast of CRBT and common the tinkle of bells is as broad as long, by above-mentioned mode, closes the DTX function in the tinkle of bells broadcast stage, then also must close the DTX function in the polyphonic ringtone playing stage, has promoted the tonequality of polyphonic ringtone playing.
Mode four
In mode four, judge module judges that by the signaling that detects mobile switching centre whether current time belongs to the polyphonic ringtone playing stage, is described in detail as follows.
When the calling subscriber calls out the called subscriber, MSC under the caller is to called subscriber's ownership HLR inquiry called subscriber's routing iinformation, if the called subscriber is a color ring user, then the called subscriber belongs to HLR fill SS_code in returning to the SRI_ACK signaling of originating switch, MSC under the caller this time calls out to CRBT according to this sign judgement and calls out, and continues to continue by normal flow simultaneously.When called affiliated MSC returns the ACM signaling and wherein state is designated as the free time, caller MSC is according to the CRBT mark, the temporary transient common ring-back tone that blocks called MS C, and to color ring platform make a call (IAM message), talking path is set up in request, and the back that successfully connects is selected personalized ring back tone by IIP according to the logical relation of numbers of calling and called parties and play to Calling Side.And when caller MSC receives the ANM response message that called MS C returns, remove and being connected of color ring platform, and set up conversation speech channel between the calling and called, polyphonic ringtone playing end so far.
Above-mentioned process is applicable to the network of various standards, as GSM network, cdma network etc.
In conjunction with above description, consider the situation of polyphonic ringtone playing failure, the judge module of the 4th kind of mode of the embodiment of the invention specifically comprises:
Timer units is used for carrying out timing in mobile switching centre after color ring platform sends playback passage foundation request;
The 7th judging unit, be used to judge whether mobile switching centre receives the response message that color ring platform returns in the timer timing time, described response message is that color ring platform is set up the message that the request back sends at the playback passage that receives mobile switching centre's transmission, obtains the 7th judged result;
The 8th judging unit is used to judge whether mobile switching centre removes the playback passage of setting up by the request of setting up of playback passage, obtains the 8th judged result;
The 4th acquiring unit as a result, be used for indicating mobile switching centre in the timer timing time, to receive the response message that color ring platform returns in described the 7th judged result, and when described playback passage is not removed in the indication of described the 8th judged result, obtain the indication current time and belong to the speech phase judged result in polyphonic ringtone playing stage, otherwise obtain the speech phase judged result that the indication current time does not belong to the polyphonic ringtone playing stage.
In the implementation of the 4th kind of judge module of the present invention, this mobile switching centre can be a calling mobile exchanging center, also can be called mobile switching centre.
And the judgement of the judgment mode of the 8th judging unit and second judging unit is identical, no longer describes in further detail at this.
The concrete deterministic process of the 4th kind of mode comprises as shown in Figure 4:
Whether MSC receives the response message (ANM) that color ring platform returns in the step 43, timer timing, if enter step 44, otherwise enter step 46;
Certainly, in above-mentioned steps 44, also can judge by judging whether to receive the response that color ring platform returns to REL message.
Based on the above CRBT detector, whether can judge this time calling accurately just in coloring ring back tone playing, and change in real time to guarantee the state that detector is judged, thereby guarantee the correct work of intelligent DTX by cycle detection.
Below in conjunction with Fig. 5, the application of method in whole communication process of the embodiment of the invention is elaborated, it comprises:
Step 51 in calling procedure, judges whether to be in the voice signal stage of communication, if enter step 55, otherwise enters step 52;
Step 52 judges whether to be in the polyphonic ringtone playing stage, if enter step 55, otherwise enters step 53;
Step 53 generates noise elimination indication frame, enters step 54;
Step 54, discontinuous emission noise elimination indication frame;
Step 55 is carried out continuous former frame emission.
The embodiment of the invention has guaranteed to possess the effect of original DTX method in the GSM network, when obtaining to reduce the benefit of network in general power, pass through Intelligent Measurement, realized in the polyphonic ringtone playing process, not introducing the purpose of " comfort noise ", eliminated the souffle problem that CRBT occurs completely in playing process, and prior art (thoroughly closing DTX in GSM system) will produce considerable influence to whole network power.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (14)
1. a device that is used to eliminate the polyphonic ringtone playing noise is characterized in that, comprising:
Judge module is used at calling procedure, judges whether current time belongs to the polyphonic ringtone playing stage, obtains a speech phase judged result;
First control module is used for belonging to polyphonic ringtone playing during the stage at described speech phase judged result indication current time, and the control base station sub-system is closed discontinuous emission DTX function;
Second control module is used for not belonging to polyphonic ringtone playing during the stage at described speech phase judged result indication current time, and the control base station sub-system is opened the DTX function.
2. device according to claim 1 is characterized in that, described judge module specifically is used for judging according to the signaling of mobile switching centre or base station sub-system whether current time belongs to the polyphonic ringtone playing stage, obtains described speech phase judged result.
3. device according to claim 2 is characterized in that, described judge module specifically comprises:
First judging unit is used to judge whether mobile switching centre receives the response message that color ring platform returns, and described response message is that color ring platform is set up the message that the request back sends at the playback passage that receives mobile switching centre's transmission, obtains first judged result;
Second judging unit is used to judge whether mobile switching centre removes the playback passage of setting up by the request of setting up of playback passage, obtains second judged result;
First acquiring unit as a result, be used for indicating mobile switching centre to receive the response message that color ring platform returns in described first judged result, and when described playback passage is not removed in the indication of described second judged result, obtain the indication current time and belong to the speech phase judged result in polyphonic ringtone playing stage, otherwise obtain the speech phase judged result that the indication current time does not belong to the polyphonic ringtone playing stage.
4. device according to claim 2 is characterized in that, described judge module comprises:
Timer units is used for carrying out timing in mobile switching centre after color ring platform sends playback passage foundation request;
The 7th judging unit, be used to judge whether mobile switching centre receives the response message that color ring platform returns in the timer timing time, described response message is the message of color ring platform transmission after receiving described playback passage foundation request, obtains the 7th judged result;
The 8th judging unit is used to judge whether mobile switching centre removes the playback passage of setting up by the request of setting up of playback passage, obtains the 8th judged result;
The 4th acquiring unit as a result, be used for indicating mobile switching centre in the timer timing time, to receive the response message that color ring platform returns in described the 7th judged result, and when described playback passage is not removed in the indication of described the 8th judged result, obtain the indication current time and belong to the speech phase judged result in polyphonic ringtone playing stage, otherwise obtain the speech phase judged result that the indication current time does not belong to the polyphonic ringtone playing stage.
5. according to claim 3 or 4 described devices, it is characterized in that, under following situation, judge that described mobile switching centre removes described playback passage:
Mobile switching centre receives the response message that color ring platform sends after according to the tear down message that is sent by mobile switching centre that receives; Or
Mobile switching centre receives the response message that opposite end mobile switching centre sends when called off-hook is replied; Or
Mobile switching centre sends tear down message to color ring platform.
6. device according to claim 2 is characterized in that, described judge module comprises:
The 3rd judging unit is used to judge whether calling party's base station sub-system receives ring Alerting message, obtains the 3rd judged result;
The 4th judging unit is used to judge whether calling party's base station sub-system receives connection Connect message, obtains the 4th judged result;
Second acquiring unit as a result, be used for receiving ring Alerting message in described the 3rd judged result indication calling party base station sub-system, and described the 4th judged result indication calling party base station sub-system is not received and is connected Connect message, obtain the indication current time and belong to the speech phase judged result that the tinkle of bells is play the stage, do not belong to the speech phase judged result that the tinkle of bells is play the stage otherwise obtain the indication current time.
7. device according to claim 2 is characterized in that, described judge module comprises:
The 5th judging unit is used to judge whether calling party mobile exchange center sends ring Alerting message to base station sub-system, obtains the 5th judged result;
The 6th judging unit is used to judge whether calling party mobile exchange center sends connection Connect message to base station sub-system, obtains the 6th judged result;
The 3rd acquiring unit as a result, be used for sending ring Alerting message to base station sub-system in described the 5th judged result indication calling party mobile exchange center, and described the 6th judged result indication calling party mobile exchange center does not send to base station sub-system and connects Connect message, obtain the indication current time and belong to the speech phase judged result that the tinkle of bells is play the stage, do not belong to the speech phase judged result that the tinkle of bells is play the stage otherwise obtain the indication current time.
8. a method that is used to eliminate the polyphonic ringtone playing noise is characterized in that, comprising:
In calling procedure, judge that whether current time belongs to the polyphonic ringtone playing stage, obtains the speech phase judged result;
Belong to polyphonic ringtone playing during the stage at described speech phase judged result indication current time, the control base station sub-system is closed discontinuous emission DTX function;
Do not belong to polyphonic ringtone playing during the stage at described speech phase judged result indication current time, the control base station sub-system is opened the DTX function.
9. method according to claim 8 is characterized in that, specifically judges according to the signaling of mobile switching centre or base station sub-system whether current time belongs to the polyphonic ringtone playing stage.
10. method according to claim 9 is characterized in that, specifically utilizes following steps to judge whether current time belongs to the polyphonic ringtone playing stage:
Judge whether mobile switching centre receives the response message that color ring platform returns, described response message is that color ring platform is set up the message that the request back sends at the playback passage that receives mobile switching centre's transmission, obtains first judged result;
Judge that whether mobile switching centre removes the playback passage of setting up by the request of setting up of playback passage, obtains second judged result;
Indicate mobile switching centre to receive the response message that color ring platform returns in described first judged result, and when described playback passage is not removed in the indication of described second judged result, obtain the indication current time and belong to the speech phase judged result in polyphonic ringtone playing stage, otherwise obtain the speech phase judged result that the indication current time does not belong to the polyphonic ringtone playing stage.
11. method according to claim 9 is characterized in that, specifically utilizes following steps to judge whether current time belongs to the polyphonic ringtone playing stage:
After sending playback passage foundation request, color ring platform carries out timing in mobile switching centre;
Judge whether mobile switching centre receives the response message that color ring platform returns in the timer timing time, described response message is the message of color ring platform transmission after receiving described playback passage foundation request, obtains the 7th judged result;
Judge that whether mobile switching centre removes the playback passage of setting up by the request of setting up of playback passage, obtains the 8th judged result;
Indicate mobile switching centre in the timer timing time, to receive the response message that color ring platform returns in described the 7th judged result, and when described playback passage is not removed in the indication of described the 8th judged result, obtain the indication current time and belong to the speech phase judged result in polyphonic ringtone playing stage, otherwise obtain the speech phase judged result that the indication current time does not belong to the polyphonic ringtone playing stage.
12. according to claim 10 or 11 described methods, it is characterized in that, under following situation, judge that described mobile switching centre removes described playback passage:
Mobile switching centre receives the response message that color ring platform sends after according to the tear down message that is sent by mobile switching centre that receives; Or
Mobile switching centre receives the response message that opposite end mobile switching centre sends when called off-hook is replied; Or
Mobile switching centre sends tear down message to color ring platform.
13. method according to claim 9 is characterized in that, specifically utilizes following steps to judge whether current time belongs to the polyphonic ringtone playing stage:
Judge that whether calling party's base station sub-system receives ring Alerting message, obtains the 3rd judged result;
Judge that whether calling party's base station sub-system receives connection Connect message, obtains the 4th judged result;
Receive ring Alerting message in described the 3rd judged result indication calling party base station sub-system, and described the 4th judged result indication calling party base station sub-system is not received and is connected Connect message, obtain the indication current time and belong to the speech phase judged result that the tinkle of bells is play the stage, do not belong to the speech phase judged result that the tinkle of bells is play the stage otherwise obtain the indication current time.
14. method according to claim 9 is characterized in that, specifically utilizes following steps to judge whether current time belongs to the polyphonic ringtone playing stage:
Judge that whether calling party mobile exchange center sends ring Alerting message to base station sub-system, obtains the 5th judged result;
Judge that whether calling party mobile exchange center sends connection Connect message to base station sub-system, obtains the 6th judged result;
Send ring Alerting message in described the 5th judged result indication calling party mobile exchange center to base station sub-system, and described the 6th judged result indication calling party mobile exchange center does not send to base station sub-system and connects Connect message, obtain the indication current time and belong to the speech phase judged result that the tinkle of bells is play the stage, do not belong to the speech phase judged result that the tinkle of bells is play the stage otherwise obtain the indication current time.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2012175022A1 (en) * | 2011-06-20 | 2012-12-27 | 中国移动通信集团公司 | Method, system and device for controlling uplink discontinuous transmission (dtx) state |
| CN110177176A (en) * | 2019-05-27 | 2019-08-27 | 深圳市万普拉斯科技有限公司 | Promote the method, device and mobile terminal of call tone quality |
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| CN101467016A (en) * | 2006-07-07 | 2009-06-24 | 诺基亚公司 | Method and system for enhancing the discontinuous transmission functionality |
| CN101340215A (en) * | 2007-07-04 | 2009-01-07 | 鼎桥通信技术有限公司 | Method and device for determining transmitting power of special burst sub-frame |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012175022A1 (en) * | 2011-06-20 | 2012-12-27 | 中国移动通信集团公司 | Method, system and device for controlling uplink discontinuous transmission (dtx) state |
| CN110177176A (en) * | 2019-05-27 | 2019-08-27 | 深圳市万普拉斯科技有限公司 | Promote the method, device and mobile terminal of call tone quality |
| CN110177176B (en) * | 2019-05-27 | 2021-06-08 | 深圳市万普拉斯科技有限公司 | Method and device for improving conversation tone quality and mobile terminal |
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