CN103177729A - Method and terminal for sending, receiving and processing voice on basis of long term evolution (LTE) - Google Patents

Method and terminal for sending, receiving and processing voice on basis of long term evolution (LTE) Download PDF

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Publication number
CN103177729A
CN103177729A CN2011104329870A CN201110432987A CN103177729A CN 103177729 A CN103177729 A CN 103177729A CN 2011104329870 A CN2011104329870 A CN 2011104329870A CN 201110432987 A CN201110432987 A CN 201110432987A CN 103177729 A CN103177729 A CN 103177729A
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voice signal
voice
lte
signal
processing
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CN103177729B (en
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刘洁
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Yulong Computer Telecommunication Scientific Shenzhen Co Ltd
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Yulong Computer Telecommunication Scientific Shenzhen Co Ltd
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Abstract

The invention is suitable for the technical field of communication and provides a voice receiving and processing terminal on the basis of long term evolution (LTE). The receiving and processing terminal comprises an LTE demodulator for demodulating voice signals, an application processor for converting demodulation processing signals into link voice signals, a data processor for performing data processing on the link voice signals and a decoder for decoding the voice signals after data are processed. The invention further provides a voice receiving and processing terminal on the basis of the LTE, a voice sending and processing terminal and a voice sending and processing terminal correspondingly. Call voice effects under the modes of video call and VoLTE call can be improved greatly.

Description

Voice transmission, receiving handling method and terminal based on LTE
Technical field
The present invention relates to communication technical field, relate in particular to a kind of voice transmission, receiving handling method and terminal based on LTE.
Background technology
LTE (Long Term Evolution, Long Term Evolution) project is the evolution of 3G, it is under 2G and 3G network, speech business is mainly at CS territory (Circuit Switch, the circuit hosting domain) the upper realization, and LTE is based on packet switching service, only has PS territory (Package Switch, data field), there is no the CS territory.Therefore, realize speech business on the LTE terminal, need by other approach.In fact, present LTE network can realize that video calling and VoLTE (Voice of LTE, LTE voice) function are arranged by the PS territory, and these two functions also need to realize speech business.The circuit design of present this call voice as shown in Figure 1, the conversation path of VoLTE is LTE modulator-demodular unit 10-application processor 20-codec 30.If realize another 2G/3G speech business, need to increase again a special 2G/3G communication module, as W (or TD, C) module, its voice pathway is 2G/3G communication module 40-codec 30.
Existing LTE scheme can realize that video calling and VoLTE function are the PS territories of walking, there is no the CS territory, voice signal is not optimized the DSP of processing, do not increase in addition the hardware chip that carries out specially DSP for voice in the periphery yet, and be only the processing of doing some simple software algorithms, so the more common conversation of the speech quality of video calling is far short of what is expected, conversation has no idea to reach the tonequality level of 2G/3G normal speech.
In summary, existing voice service processing method based on LTE obviously exists inconvenience and defective in actual use, so be necessary to be improved.
Summary of the invention
For above-mentioned defective, the object of the present invention is to provide a kind of voice transmission, receiving handling method and terminal based on LTE, it can significantly promote the call voice effect under video calling and VoLTE call mode.
To achieve these goals, the invention provides a kind of phonetic incepting processing terminal based on LTE, described receiving terminal comprises:
The LTE detuner is used for voice signal is carried out demodulation process;
Application processor is used for described demodulation process signal is converted to the link voice signal;
Data processor is used for that described link voice signal is carried out data and processes;
Demoder, the voice signal after being used for described data are processed is decoded.
According to reception ﹠ disposal terminal of the present invention, described data processor is dsp processor independently.
According to reception ﹠ disposal terminal of the present invention, described receiving terminal comprises the 2G/3G communication unit, and described data processor is a dsp processor of described 2G/3G communication unit.
According to reception ﹠ disposal terminal of the present invention, described data processor comprises:
Filter unit is for gain and the pad value of adjusting the different frequent points in voice band; And/or
Gain processing unit is used for the small-signal of voice signal is amplified; And/or
The distorsion processing unit is used for the large-signal of voice signal is carried out attenuation processing; And/or
Echo suppresses the unit, is used for suppressing the echo of voice signal; And/or
The noise suppression unit is for the noise that suppresses voice signal.
The present invention provides a kind of phonetic incepting disposal route based on LTE accordingly, and described method comprises the steps:
The voice signal that demodulation process receives;
Described demodulation process signal is converted to the link voice signal;
Described link voice signal is carried out data to be processed;
Voice signal after the described data of decoding are processed.
The present invention also provides a kind of voice transmission processing terminal based on LTE, and described terminal comprises:
Scrambler is used for the coding simulation voice signal;
Data processor is used for the voice signal of described coding is carried out the data processing;
Application processor is used for the voice signal after described processing is carried out data-switching;
The LTE modulator is modulated the voice signal after described conversion.
According to transmission processing terminal of the present invention, described data processor is dsp processor independently.
According to transmission processing terminal of the present invention, described receiving terminal comprises the 2G/3G communication unit, and described data processor is a dsp processor of described 2G/3G communication unit.
According to transmission processing terminal of the present invention, described data processor comprises:
Filter unit is for gain and the pad value of adjusting the different frequent points in voice band; And/or
Gain processing unit is used for the small-signal of voice signal is amplified; And/or
The distorsion processing unit is used for the large-signal of voice signal is carried out attenuation processing; And/or
Echo suppresses the unit, is used for suppressing the echo of voice signal; And/or
The noise suppression unit is for the noise that suppresses voice signal.
A kind of also corresponding voice transmission processing method based on LTE of the present invention, described method comprises the steps:
The coding simulation voice signal;
The voice signal of described coding is carried out the data processing;
Voice signal after described processing is carried out data-switching;
Modulate the voice signal after described conversion.
The present invention carries out demodulation process by the LTE detuner is set to the voice signal that receives, and by application processor, voice signal is carried out data-switching, link voice signal after conversion is processed through data processor again, preferably, this data processor can carry out filtering processing, distorsion processing, echo inhibition etc. to voice signal, and the signal after processing is namely by the demoder output of decoding.Whereby, can significantly promote call voice effect under video calling and VoLTE call mode based on the terminal of LTE.
Description of drawings
Fig. 1 is the speech business treatment circuit based on LTE of prior art;
Fig. 2 is the structural representation based on the phonetic incepting processing terminal of LTE of one embodiment of the invention;
Fig. 3 is the structural representation based on the voice transmission processing terminal of LTE of one embodiment of the invention;
Fig. 4 is the structural representation of the data processor of one embodiment of the invention;
Fig. 5 is the phonetic incepting process flow figure based on LTE of one embodiment of the invention;
Fig. 6 is the voice transmission processing method flow diagram based on LTE of one embodiment of the invention;
Fig. 7 is the structural representation based on the speech processes terminal of LTE of another embodiment of the present invention;
Fig. 8 is the structural representation based on the speech processes terminal of LTE of another embodiment of the present invention.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.
Referring to Fig. 2, the invention provides a kind of speech business reception ﹠ disposal terminal 100 based on LTE, it can be completed under the LTE network the voice signal reception ﹠ disposal, and this processing terminal 100 comprises:
LTE detuner 10 is used for voice signal is carried out demodulation process.Concrete, when terminal 100 received speech signal, it is demodulated into digital signal with the analog voice signal that receives, and sends into application processor 20 and be further processed.
Application processor 20 is used for the conversion of link voice signal.When terminal 100 received speech signal, application processor 20 receives the restituted signal from LTE detuner 10, and signal is converted to sends it to data processor 30 after the link voice signal and process.
Data processor 30 is used for the link voice signal is processed.This data processor 30 is preferably independently dsp processor, and as shown in Figure 4, it specifically comprises:
Filter unit 31 for gain and the pad value of adjusting the different frequent points in voice band, effectively improves the subjective auditory effect of bass, middle pitch and high pitch frequency range whereby.
Gain processing unit 32 is used for the small-signal of voice signal is amplified automatically, improves the loudness of voice call.
Distorsion processing unit 33 is used for the large-signal of voice signal is carried out attenuation processing, and anti-stop signal surpasses the maximum amplitude limit of power amplifier.
Echo suppresses unit 34, is used for suppressing the echo of voice signal.
Noise suppression unit 35, the noise for suppressing voice signal improves environmental noise and background noise.
Demoder 40 is used for the voice signal that receives is decoded.When reception ﹠ disposal terminal 100 received speech signal, this demoder 40 is converted to physical signalling with circuit signal and exports.
Referring to Fig. 3, the invention provides a kind of speech business transmission processing terminal 100 based on LTE again, it can be completed under the LTE network the voice signal transmission processing, and this transmission processing terminal 100 comprises:
Scrambler 50 for processing that external sound signal is encoded, is converted to circuit signal with physical signalling and transmits.
Data processor 30, its structure as shown in Figure 4, this data processor 30 is dsp processor, is used for the link voice signal is processed, and improves signal quality.
Application processor 20 is used for when terminal 100 sends voice signal, and reception is from the signal of data processor 30, and sends to LTE modulator 60 after changing and carry out modulation treatment.
LTE modulator 60 is used for receiving the voice signal of processing through application processor 20, and to its modulation treatment, then externally sends.
Better, transmission provided by the invention and reception ﹠ disposal technology can be applicable in same mobile terminal, mobile terminal 100 shown in Figure 7, and it has LTE modulator-demodular unit 70, application processor 20, data processor 30 and codec 80.Wherein, LTE modulator-demodular unit 70 is integrated to voice modulation and demodulation function, codec 80 is the equally also integrated coding and decoding function of voice signal, terminal 100 is when transmission or received speech signal, the unit of data processor 30 all can be processed voice signal, greatly improves whereby voice quality.
Need to prove, the terminal 100 of above embodiment is based on the single mode mobile phone of LTE, and the present invention can also be applied to the dual-mode handset based on LTE.The terminal 100 of another embodiment of the present invention as shown in Figure 8, structure and the function of the LTE modulator-demodular unit 70 in this embodiment, application processor 20 and codec 80 are identical with previous embodiment, do not repeat them here.Different is, in the present embodiment, terminal 100 also has a 2G/3G communication unit 90, and it can be the communication units such as WCDMA, CDMA or TD, and terminal 100 not only can be used in the LTE network, also can complete 2G/3G communication.Preferably, 2G/3G communication unit 90 has a dsp processor, when terminal 100 was communicated by letter in the LTE environment, the functional structure of this dsp processor was equal to the data processor 30 of previous embodiment, and namely this moment, 2G/3G communication unit 90 dsp processor was as data processor 30 work operations.Take terminal 100 received speech signals as example,, after processing, LTE modulator-demodular unit 70, application processor 20 then undertaken sending to codec 80 after data are processed by the dsp processor of 2G/3G communication unit 90 when voice signal.
Fig. 5 is the phonetic incepting process flow figure based on LTE of one embodiment of the invention, and they can be by mobile terminal 100 realizations as shown in Figure 2, and the method comprises:
Step S501, the voice signal that LTE detuner 10 demodulation process receive.
Step S502, application processor 20 are converted to the link voice signal with the voice signal after demodulation process and transmit.
Step S503,30 pairs of voice signals of data processor are processed, and concrete comprise that gain to filtering and signal, distorsion, echo noise etc. process.
Step S504, the voice signal of demoder 40 decodings after data are processed, the line output of going forward side by side.
Fig. 6 is the voice transmission processing method flow diagram based on LTE of one embodiment of the invention, and they can be by mobile terminal 100 realizations as shown in Figure 3, and the method comprises:
Step S601, scrambler 50 coding external sound signals are converted to circuit signal with physical signalling.
Step S602, data processor 30 carries out the data processing with the voice signal of coding.
Step S603, the voice signal after application processor 20 will be processed carries out data-switching.
Step S604, the voice signal after LTE modulator 60 modulation conversion, the voice signal after modulation is sent by terminal 100.
In sum, the present invention carries out demodulation process by the LTE detuner is set to the voice signal that receives, and by application processor, voice signal is carried out data-switching, link voice signal after conversion is processed through data processor again, preferably, this data processor can carry out filtering processing, distorsion processing, echo inhibition etc. to voice signal, and the signal after processing is namely by the demoder output of decoding.Whereby, can significantly promote call voice effect under video calling and VoLTE call mode based on the terminal of LTE.
Certainly; the present invention also can have other various embodiments; in the situation that do not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make according to the present invention various corresponding changes and distortion, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the present invention.

Claims (10)

1. the phonetic incepting processing terminal based on LTE, is characterized in that, described receiving terminal comprises:
The LTE detuner is used for voice signal is carried out demodulation process;
Application processor is used for described demodulation process signal is converted to the link voice signal;
Data processor is used for that described link voice signal is carried out data and processes;
Demoder, the voice signal after being used for described data are processed is decoded.
2. reception ﹠ disposal terminal according to claim 1, is characterized in that, described data processor is dsp processor independently.
3. reception ﹠ disposal terminal according to claim 1, is characterized in that, described receiving terminal comprises the 2G/3G communication unit, and described data processor is a dsp processor of described 2G/3G communication unit.
4. reception ﹠ disposal terminal according to claim 1, is characterized in that, described data processor comprises:
Filter unit is for gain and the pad value of adjusting the different frequent points in voice band; And/or
Gain processing unit is used for the small-signal of voice signal is amplified; And/or
The distorsion processing unit is used for the large-signal of voice signal is carried out attenuation processing; And/or
Echo suppresses the unit, is used for suppressing the echo of voice signal; And/or
The noise suppression unit is for the noise that suppresses voice signal.
5. the phonetic incepting disposal route based on LTE, is characterized in that, described method comprises the steps:
The voice signal that demodulation process receives;
Described demodulation process signal is converted to the link voice signal;
Described link voice signal is carried out data to be processed;
Voice signal after the described data of decoding are processed.
6. the voice transmission processing terminal based on LTE, is characterized in that, described terminal comprises:
Scrambler is used for the coding external sound signal;
Data processor is used for the voice signal of described coding is carried out the data processing;
Application processor is used for the voice signal after described processing is carried out data-switching;
The LTE modulator is modulated the voice signal after described conversion.
7. transmission processing terminal according to claim 6, is characterized in that, described data processor is dsp processor independently.
8. transmission processing terminal according to claim 6, is characterized in that, described receiving terminal comprises the 2G/3G communication unit, and described data processor is a dsp processor of described 2G/3G communication unit.
9. transmission processing terminal according to claim 6, is characterized in that, described data processor comprises:
Filter unit is for gain and the pad value of adjusting the different frequent points in voice band; And/or
Gain processing unit is used for the small-signal of voice signal is amplified; And/or
The distorsion processing unit is used for the large-signal of voice signal is carried out attenuation processing; And/or
Echo suppresses the unit, is used for suppressing the echo of voice signal; And/or
The noise suppression unit is for the noise that suppresses voice signal.
10. the voice transmission processing method based on LTE, is characterized in that, described method comprises the steps:
The coding external sound signal;
The voice signal of described coding is carried out the data processing;
Voice signal after described processing is carried out data-switching;
Modulate the voice signal after described conversion.
CN201110432987.0A 2011-12-21 2011-12-21 Voice based on LTE send, receiving handling method and terminal Active CN103177729B (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015123941A1 (en) * 2014-02-18 2015-08-27 中兴通讯股份有限公司 Method for processing volte voice service, terminal and routing device
WO2015131608A1 (en) * 2014-09-17 2015-09-11 中兴通讯股份有限公司 Communication processor, method of implementing volte, mobile terminal, data card
CN105337980A (en) * 2015-11-18 2016-02-17 广东欧珀移动通信有限公司 Method and device for selecting multi-card terminal communication network

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Publication number Priority date Publication date Assignee Title
CN1917039A (en) * 2005-08-19 2007-02-21 华为技术有限公司 Method and system for enhancing quantity of speech
CN101925203A (en) * 2009-06-11 2010-12-22 北京大学 Mobile terminal
WO2011041738A2 (en) * 2009-10-01 2011-04-07 Qualcomm Incorporated Suppressing noise in an audio signal

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1917039A (en) * 2005-08-19 2007-02-21 华为技术有限公司 Method and system for enhancing quantity of speech
CN101925203A (en) * 2009-06-11 2010-12-22 北京大学 Mobile terminal
WO2011041738A2 (en) * 2009-10-01 2011-04-07 Qualcomm Incorporated Suppressing noise in an audio signal

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015123941A1 (en) * 2014-02-18 2015-08-27 中兴通讯股份有限公司 Method for processing volte voice service, terminal and routing device
WO2015131608A1 (en) * 2014-09-17 2015-09-11 中兴通讯股份有限公司 Communication processor, method of implementing volte, mobile terminal, data card
CN105430143A (en) * 2014-09-17 2016-03-23 中兴通讯股份有限公司 Communication processor, method for realizing VoLTE, mobile terminal and data card
RU2666621C1 (en) * 2014-09-17 2018-09-11 ЗетТиИ Корпорейшн Communication processor, method of volte implementation, mobile terminal, data card
CN105430143B (en) * 2014-09-17 2020-04-10 中兴通讯股份有限公司 Communication processor, VoLTE realization method, mobile terminal and data card
CN105337980A (en) * 2015-11-18 2016-02-17 广东欧珀移动通信有限公司 Method and device for selecting multi-card terminal communication network

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