CN1756127A - Non-continuous full rate voice transmitting method in SCDMA system - Google Patents
Non-continuous full rate voice transmitting method in SCDMA system Download PDFInfo
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- CN1756127A CN1756127A CNA2004100848271A CN200410084827A CN1756127A CN 1756127 A CN1756127 A CN 1756127A CN A2004100848271 A CNA2004100848271 A CN A2004100848271A CN 200410084827 A CN200410084827 A CN 200410084827A CN 1756127 A CN1756127 A CN 1756127A
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- 238000000034 method Methods 0.000 title claims abstract description 28
- 230000005540 biological transmission Effects 0.000 claims abstract description 21
- 230000004913 activation Effects 0.000 claims description 11
- 230000006854 communication Effects 0.000 claims description 9
- 238000004891 communication Methods 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 5
- 238000012360 testing method Methods 0.000 claims description 3
- 238000005265 energy consumption Methods 0.000 abstract 1
- 238000010295 mobile communication Methods 0.000 description 4
- 230000001413 cellular effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000010267 cellular communication Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The invention discloses a method for discontinuously transmitting full speed voice in the SCDMA system, comprising: when building the connection between terminal and base station, the terminal informs the base station that said terminal supporting the discontinuous transmission of full speed voice, and the base station utilizes the coding/decoding method for supporting the discontinuous transmission of full speed voice in used channel; the sounders of terminal and base station utilize the voice activate check algorism to check the PCM digital voice and according to the input attain the checked result as voice activate frame, mute indicate frame or mute frame; the sounders of terminal and base station process different encoding according to the checked result; the terminal MDM emission control part emits the data in different length according to the received output of sounder; the terminal MDM receiving control part receives along with judging the received result, controlling the length of received data; and the sounders of base station and terminal process the decoding according to the type of received MDM package. Said method can save the energy consumption of SCDMA terminal and reduce the interference of air wireless signal.
Description
Technical field
The present invention relates to a kind of in cellular mobile communication the method for non-continuous full rate voice transmitting, relate in particular to a kind of in S-CDMA (SCDMA) system the method for non-continuous full rate voice transmitting.
Background technology
In mobile communication system, base station and mobile terminal sound encoder carry out compressed encoding to the digital speech of linear impulsive coded modulation (PCM) coding of input, by sending to the decoder of receiving terminal in the air, are reduced into digital speech again.Uplink communication is to carry out compressed encoding in terminal, decodes in the base station; Arrive the switching network that base station controller arrives public network again by E1 circuit (a kind of network communication circuit) after the base station decodes, exchange to base station controller again, pass to the base station; Downgoing communication is to carry out compressed encoding in the base station, decodes in terminal.Because in communication process, it is mutual processes that the dialogue both sides have the timeslice of voice, has 50% voice activation rate on an average on each direction at most.Now, proposed a kind of method of non-continuous full rate voice transmitting in the cell mobile communication systems, saved the power consumption of terminal and reduce the interference of on-air radio signal.Concrete method is: utilize the voice activation detection technique to realize that digital speech to pcm encoder has or not speech to estimate and the acoustic characteristic of background noise is carried out parameter Estimation at coding side; When estimating not have speech, transmitting terminal stops to send signal, and receiving terminal stops the transmission stage at transmitting terminal, utilizes the parameter Estimation generation comfort noise to the acoustic characteristic of background noise.
In existing SCDMA system, employing be the method that the continous way full-speed voice transmits, promptly in communication process, launch continuously all the time, both made in also emission fully between active period of speech the sky bag or the quiet bag of voice packet equal length (i.e. the emission with).Like this, not only terminal power consumption is big, and also bigger to the interference of wireless signal, is unfavorable for actual commercialization.Because the SCDMA system adopts intelligent antenna technology, every frame all must arrive the base station by the certain signal of emission during terminal call, the smart antenna of base station just can work, can not as in other cellular communication systems continuously a period of time terminal do not launch, so the method for non-continuous full rate voice transmitting can not directly be applied in the SCDMA system in the cellular mobile communication.
Summary of the invention
The purpose of this invention is to provide a kind of SCDMA system and implementation method that realizes non-continuous full rate voice transmitting.
The main implementation method of the present invention is exactly to have revised modulator-demodulator of base station and terminal (MDM) and voice control circuit (VCC) software processing module.
Such modification makes base station of the present invention compare with ordinary base station, can control the base station and adopt the code encoding/decoding mode of supporting non-continuous full rate voice transmitting at certain code channel; Can estimate the type of PCM digital speech; Can control output packet type and length; Can control reception length.Also make terminal of the present invention compare with ordinary terminal, whether its processing module can this terminal of informing base station support non-continuous full rate voice transmitting; Can estimate the type of PCM digital speech; Can control output packet type and length; Can control reception length; Can control decoding or produce comfort noise; During up or descending no conversation voice, control terminal MDM is to the type of base station transmit signals or reception base station signal.
The present invention realizes that in the SCDMA system method of non-continuous full rate voice transmitting may further comprise the steps:
(1) in terminal and base station link setup, this this terminal of terminal informing base station is to support the terminal of non-continuous full rate voice transmitting, and the code encoding/decoding mode of supporting non-continuous full rate voice transmitting is adopted in the base station at used communication code channel then;
(2) vocoder of terminal and base station utilizes the voice activation detection algorithm to detect the type of pulse code modulation (pcm) digital speech, and according to input, testing result may be voice activation frame, quiet indication frame or quiet frame;
(3) vocoder of terminal and base station carries out different codings according to the result that the voice activation detection algorithm detects;
(4) modulator-demodulator of terminal (MDM) emission control part is according to the different types of data of the vocoder output that receives, the data of emission different length;
(5) modulator-demodulator of terminal (MDM) receives control section, judges the data type of receiving while receive, and controls the data length of whole reception;
(6) vocoder of base station and terminal carries out dissimilar decodings according to the data type that the modulator-demodulator of receiving (MDM) receives.
Preferably, in the described step (3), if the result who detects is the voice activation frame, then according to the full-speed voice compressed encoding and to modulator-demodulator output voice packet; If the result who detects is quiet indication frame, then export quiet indication bag according to agreement; If the result who detects is quiet frame, then export non-transmission bag according to agreement.
Preferably, in the described step (4),, then receive all symbols according to normal SCDMA one layer protocol if the data of receiving are voice packets; If quiet indication bag, the symbol of the short length that the agreement that then receives only is reserved; If be non-transmission bag, the symbol of the shorter length that the agreement that then receives only is reserved.
Preferably, in the described step (5),, then receive all symbols according to normal SCDMA one layer protocol if the result who receives is a voice packet; If quiet indication bag, the symbol of the short length that the agreement that then receives only is reserved; If be non-transmission bag, the symbol of the shorter length that the agreement that then receives only is reserved.
Preferably, in the described step (6),, then recover the digital speech of pulse code modulation according to normal tone decoding algorithm if the data type of receiving is a voice packet; If quiet indication bag or non-transmission bag then utilize comfort noise to produce algorithm and produce comfort noise.
Preferably, during up or descending no conversation voice, terminal modem is only launched or is received quiet indication bag or non-transmission bag.
In addition, when terminal is in holding state, terminal MDM does not transmit, and receives only, and what received this moment is the broadcast bag, and it doesn't matter with voice.
The method of non-continuous full rate voice transmitting of the present invention can be saved the power consumption of SCDMA terminal, and reduces the interference of on-air radio signal.
Description of drawings
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described in further detail.In the accompanying drawing:
Fig. 1 is speech coding and signal emission process chart;
Fig. 2 receives and the tone decoding flow chart for signal.
Embodiment
Base station and terminal are used amended MDM software and VCC software.Below with International Telecommunication Association (ITU) standard G.729B with full rate G.729A agreement be that example is introduced the specific embodiment of the present invention.
In terminal and base station link setup, this this terminal of terminal informing base station is to support the terminal of non-continuous full rate voice transmitting, and the code encoding/decoding mode of supporting non-continuous full rate voice transmitting is adopted in the base station at used communication code channel then.
Fig. 1 shows the flow process of speech coding of the present invention and signal emission processing:
At first, the vocoder of terminal and the base station vad algorithm of using International Telecommunication Association (ITU) standard G.729B to be provided detects the type of pulse code modulation (pcm) digital speech.This algorithm has three kinds of testing results according to the speech frame of current input, i.e. voice activation frame, quiet indication frame and quiet frame.
Then, the vocoder of base station and terminal carries out different codings according to the result that above-mentioned steps detects.If speech frame, then according to full rate agreement compressed encoding and G.729A according to the voice packet behind the existing SCDMA vocoder output packing manner output encoder; If quiet indication frame, then according to special agreement output SID (quiet indication) bag; If quiet frame is then exported non-transmission bag according to special agreement.Wherein the SID bag is to be clipped in gap between a plurality of non-transmission bags to exist, and shows that the background noise of this quiet environment changes to some extent.
Behind the coding, the MDM emission control part of terminal is according to the result of the vocoder output that receives, the data length of control emission.If voice packet then sends 58 symbols according to normal SCDMA one layer protocol; If the SID bag, then the length according to the SID bag only sends 34 symbols; If be non-transmission bag, then the length according to non-transmission bag only sends 18 symbols.
Fig. 2 shows the flow process of signal reception of the present invention and tone decoding:
At first, the MDM of terminal receives control section, judges the result who receives while receive, and controls the data length of whole reception.If voice packet then receives 56 symbols according to normal SCDMA one layer protocol; If the SID bag then receives only 34 symbols; If be non-transmission bag, then receive only 18 symbols.
Then, the vocoder of base station and terminal carries out dissimilar decodings according to the bag type that the MDM that receives receives.If voice packet then recovers the PCM digital speech according to the corresponding decoding algorithm of compressed encoding; If SID bag or non-transmission bag then produce comfort noise according to the CNG algorithm that is G.729B provided.
During up or descending no conversation voice, for keep terminal in communication process with base station synchronization, terminal MDM not exclusively stops to base station transmit signals or from base station received signal, but only emission or receive SID bag or non-transmission bag.
In addition, when terminal is in holding state, terminal MDM does not transmit, and receives only, and what received this moment is the broadcast bag, and it doesn't matter with voice.
Because emission or the quiet indication bag or the non-transmission bag that receive are shorter than voice packet, utilize the method for non-continuous full rate voice transmitting of the present invention, can save the power consumption of SCDMA terminal, and reduce the interference of on-air radio signal.
Claims (6)
1. the method for a non-continuous full rate voice transmitting is characterized in that, may further comprise the steps:
(1) in terminal and base station link setup, this this terminal of terminal informing base station is to support the terminal of non-continuous full rate voice transmitting, and the code encoding/decoding mode of supporting non-continuous full rate voice transmitting is adopted in the base station at used communication code channel then;
(2) vocoder of terminal and base station utilizes the voice activation detection algorithm to detect the type of pulse code modulation (pcm) digital speech, and according to input, testing result may be voice activation frame, quiet indication frame or quiet frame;
(3) vocoder of terminal and base station carries out different codings according to the result that the voice activation detection algorithm detects;
(4) modulator-demodulator of terminal (MDM) emission control part is according to the different types of data of the vocoder output that receives, the data of emission different length;
(5) modulator-demodulator of terminal (MDM) receives control section, judges the data type of receiving while receive, and controls the data length of whole reception;
(6) vocoder of base station and terminal carries out dissimilar decodings according to the data type that the modulator-demodulator of receiving (MDM) receives.
2. the method for claim 1 is characterized in that, in the described step (3), if the result who detects is the voice activation frame, then according to the full-speed voice compressed encoding and to modulator-demodulator output voice packet; If the result who detects is quiet indication frame, then export quiet indication bag according to agreement; If the result who detects is quiet frame, then export non-transmission bag according to agreement.
3. the method for claim 1 is characterized in that, in the described step (4), if the data of receiving are voice packets, then sends all symbols according to normal SCDMA one layer protocol by maximum length; If not the quiet indication bag or the non-transmission bag that then send the short length symbol that agreement reserves.
4. the method for claim 1 is characterized in that, in the described step (5), if the data of receiving are voice packets, then receives all symbols according to normal SCDMA one layer protocol; If quiet indication bag, the symbol of the short length that the agreement that then receives only is reserved; If be non-transmission bag, the symbol of the shorter length that the agreement that then receives only is reserved.
5. the method for claim 1 is characterized in that, in the described step (6), if the data type of receiving is a voice packet, then recovers to survey the pulse code modulation digital speech according to normal tone decoding algorithm; If quiet indication bag or non-transmission bag then utilize comfort noise to produce algorithm and produce comfort noise.
6. as the described method of one of claim 1 to 6, it is characterized in that during up or descending no conversation voice, terminal modem is only launched or received quiet indication bag or non-transmission bag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100848271A CN100369444C (en) | 2004-09-30 | 2004-09-30 | Non-continuous full rate voice transmitting method in SCDMA system |
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2004100848271A CN100369444C (en) | 2004-09-30 | 2004-09-30 | Non-continuous full rate voice transmitting method in SCDMA system |
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| CN1756127A true CN1756127A (en) | 2006-04-05 |
| CN100369444C CN100369444C (en) | 2008-02-13 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101552819A (en) * | 2009-03-30 | 2009-10-07 | 李林冲 | One-way standby mobile phone |
| CN101287274B (en) * | 2007-04-11 | 2012-07-04 | 深圳市维信联合科技有限公司 | Voice encryption system for mobile communication and encryption method thereof |
| CN105101109A (en) * | 2014-05-15 | 2015-11-25 | 哈尔滨海能达科技有限公司 | Realization method, terminal, and system for discontinuous transmission of police digital trunking system |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BRPI9915652B1 (en) * | 1998-11-24 | 2016-09-06 | Ericsson Telefon Ab L M | process for performing discontinuous transmission in a communication system, and speech communication system |
| US6282182B1 (en) * | 2000-01-07 | 2001-08-28 | Motorola, Inc. | Method and apparatus for simultaneous circuit switched voice and GPRS data interchange |
| US6631139B2 (en) * | 2001-01-31 | 2003-10-07 | Qualcomm Incorporated | Method and apparatus for interoperability between voice transmission systems during speech inactivity |
| US7155255B2 (en) * | 2001-10-25 | 2006-12-26 | Motorola, Inc. | Communication equipment, transcoder device and method for processing frames associated with a plurality of wireless protocols |
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2004
- 2004-09-30 CN CNB2004100848271A patent/CN100369444C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101287274B (en) * | 2007-04-11 | 2012-07-04 | 深圳市维信联合科技有限公司 | Voice encryption system for mobile communication and encryption method thereof |
| CN101552819A (en) * | 2009-03-30 | 2009-10-07 | 李林冲 | One-way standby mobile phone |
| CN105101109A (en) * | 2014-05-15 | 2015-11-25 | 哈尔滨海能达科技有限公司 | Realization method, terminal, and system for discontinuous transmission of police digital trunking system |
| CN105101109B (en) * | 2014-05-15 | 2019-12-03 | 哈尔滨海能达科技有限公司 | The implementation method discontinuously sent, terminal and the system of police digital cluster system |
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| Publication number | Publication date |
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| CN100369444C (en) | 2008-02-13 |
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Denomination of invention: Non-continuous full rate voice transmitting method in SCDMA system Effective date of registration: 20110509 Granted publication date: 20080213 Pledgee: Datang Telecom Technology Industry Holding Co., Ltd.|Telecommunications Science and Technology Research Institute Pledgor: Xinwei Communications Technological Co., Ltd., Beijing Registration number: 2011990000168 |
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Correction item: The Pledgee of the pledge of patent right Correct: Datang Telecom Technology Industry Holding Co., Ltd.|Telecommunications Science and Technology Research Institute False: Datang Telecom Technology Industry Holding Co., Ltd.|Telecommunications Science and Technology Research Institute Number: 27 Volume: 27 |
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