CN102790997B - Method and device for transmission of adaptive multi-rate (AMR) voice data - Google Patents
Method and device for transmission of adaptive multi-rate (AMR) voice data Download PDFInfo
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- CN102790997B CN102790997B CN201110130603.XA CN201110130603A CN102790997B CN 102790997 B CN102790997 B CN 102790997B CN 201110130603 A CN201110130603 A CN 201110130603A CN 102790997 B CN102790997 B CN 102790997B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
- H04W28/18—Negotiating wireless communication parameters
- H04W28/22—Negotiating communication rate
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0014—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the source coding
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0036—Systems modifying transmission characteristics according to link quality, e.g. power backoff arrangements specific to the receiver
- H04L1/0038—Blind format detection
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- Quality & Reliability (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a method and device for transmission of adaptive multi-rate (AMR) voice data. In the method, a base station performs decoding on received voice data information from a mobile terminal in a first rate decoding mode, if decoding fails, the base station performs decoding on the received voice data information from the mobile terminal in a self-supported multi-rate coding mode (i.e. a second rate coding mode), and acquires decoded voice data information. Such method improves the decoding success rate of the base station, ensures quality of connection, and improves system reliability.
Description
Technical field
The present invention relates to speech communication technical field, more particularly to a kind of AMR (Adaptive Muti-
Rate, AMR) speech data transmission method and device.
Background technology
With developing rapidly for voice communication technology, user for the requirement also more and more higher of speech quality, due to adaptive
Multi tate (Adaptive Muti-Rate, AMR) speech communication technology is answered to there are various rate coding patterns therefore extensively made
With.Adaptive multi-rate speech mechanics of communication can be mobile whole according to the quality of wireless channel between base station and mobile terminal
End subscriber distributes corresponding rate coding pattern, and so as to be communicated, adaptive multi-rate speech mechanics of communication is meeting communication
While requirement, the speech quality of user is effectively guaranteed.
In adaptive multi-rate speech mechanics of communication, when quality of wireless channel is relatively good, using high-rate coded mould
Formula carries out voice call；When quality of wireless channel is poor, channel coding rate is improved by increasing redundant bit number, reduced
Speech encoding rate, using relatively low code rate pattern speech quality is ensured.
In the prior art, mobile terminal to base station send voice data request, base station according to currently with mobile terminal it
Between wireless channel quality, be that the mobile terminal distributes corresponding rate coding pattern, speed of the mobile terminal according to distribution
Coding mode is encoded to sent speech data information, and the speech data information after coding is sent to into base station, base
The speech data information to receiving of standing is decoded.
But in actual use, due to the complexity of wireless traffic, base station may not can obtain every time correct speed
Coding mode is decoded.For example, because signal is disturbed, signal level is low, bypass the immediate leadership adjustment or Fast Associated Control Channel
Reasons such as (Fast Associated Control Channel), causes base station to fail to obtain correct rate coding pattern, from
And the speech data information that mobile terminal sends cannot be decoded, have impact on the speech quality of user.
The content of the invention
In view of this, the embodiment of the present invention provides a kind of transmission method and device of AMR AMR speech datas,
In to solve prior art in the transmitting procedure of adaptive multi-rate speech data, because base station fails to obtain correct speed
Coding mode is decoded, so as to cause the problem of the speech quality difference of user.
The embodiment of the present invention provides a kind of transmission method of AMR AMR speech datas, and methods described includes：
The voice number that base station sends according to the first rate coding mode of Selecting phasing of eating dishes without rice or wine, the mobile terminal to receiving
It is believed that breath is decoded；
When decoding failure, using the second rate coding pattern that itself is supported, the speech data to the mobile terminal
Information is decoded, and obtains decoded speech data information.
The embodiment of the present invention provides a kind of transmitting device of AMR AMR speech datas, and described device includes：
First decoder module, for according to the first rate coding mode of Selecting phasing of eating dishes without rice or wine, to the mobile end for receiving
The speech data information that end sends is decoded；
Second decoder module, for when decoding fails, using the second rate coding pattern that itself is supported, to the shifting
The speech data information of dynamic terminal is decoded, and obtains decoded speech data information.
Embodiments provide the transmission method and device of a kind of AMR AMR speech datas, the method
In, when base station is decoded and decoded unsuccessfully to the speech data information that the mobile terminal for receiving sends, supported using itself
The second rate coding pattern, the speech data information of the mobile terminal is decoded, and obtain decoded voice number
It is believed that breath.Due in embodiments of the present invention, when base station is using the decoding failure of first rate decoding schema, being supported using itself
Multiple rate coding patterns as the second rate coding pattern, the speech data information of the mobile terminal to receiving enters successively
Row decoding, therefore improve the success rate of base station decoding, it is ensured that the speech quality of user, improve the reliability of system.
Description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the present invention, this
Bright schematic description and description does not constitute inappropriate limitation of the present invention for explaining the present invention.In the accompanying drawings：
Fig. 1 is a kind of transmitting procedure of AMR AMR speech datas provided in an embodiment of the present invention；
Fig. 2 is a kind of detailed description process of AMR AMR speech datas provided in an embodiment of the present invention；
Fig. 3 is a kind of the detailed of the AMR AMR speech datas by taking gsm system as an example provided in an embodiment of the present invention
Thin transmitting procedure；
Fig. 4 is that a kind of structure of the transmitting device of AMR AMR speech datas provided in an embodiment of the present invention is shown
It is intended to.
Specific embodiment
In order that the technical problem to be solved, technical scheme and beneficial effect are clearer, clear, below tie
Drawings and Examples are closed, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only
To explain the present invention, it is not intended to limit the present invention.
The embodiment of the present invention improves the reliability of system, there is provided a kind of self adaptation to ensure the speech quality of user
The transmission method and device of multi tate AMR speech datas, when base station is using the decoding failure of first rate decoding schema in the method
When, using the multiple rate coding patterns itself supported as the second rate coding pattern, the language of the mobile terminal to receiving
Sound data message is decoded successively, therefore improves the success rate of base station decoding, it is ensured that the speech quality of user, is improve
The reliability of system.
Fig. 1 is a kind of transmitting procedure of AMR AMR speech datas provided in an embodiment of the present invention, the process bag
Include following step：
S101：Base station according to the first rate coding mode of Selecting phasing of eating dishes without rice or wine, what the mobile terminal to receiving sent
Speech data information is decoded.
S102：Judge speech data information that mobile terminal to receiving sends whether successfully decoded, work as judged result
During to be, step S104 is carried out, otherwise, carrying out step S103.
S103：The second rate coding pattern that base station is supported using itself, the speech data information to the mobile terminal
Decoded.
S104：Obtain decoded speech data information.
In addition, in embodiments of the present invention when base station is according to the first rate coding mode of Selecting phasing of eating dishes without rice or wine, to receiving
During the speech data information decoding failure that the mobile terminal for arriving sends, base station judges that the speed for itself preserving decoding frequency threshold value is
It is no to be more than 1, when it is determined that the speed decoding frequency threshold value for preserving is more than 1, the second rate coding mould that base station is supported using itself
Formula, decodes to the speech data information of the mobile terminal；Otherwise, the speech data information of the mobile terminal is transmitted
Failure.
Wherein, the speed decoding frequency threshold value that base station preserves, can be to be not more than the rate coding mould that itself could support up
Any positive integer value of formula number.
In embodiments of the present invention base station can be mobile terminal setting unification according to the rate coding pattern itself supported
Speed decoding frequency threshold value, or each mobile terminal sets corresponding speed and decodes frequency threshold value, specifically, for
The important department of government or when the especially big disaster for being happened suddenly, is the speech quality for ensureing these users, and base station is these
The speed that user sets decodes frequency threshold value as maximum, i.e., the rate coding number of modes that itself could support up.Or, in order to
Effectively ensure the success of decoding, the speed decoding frequency threshold value can be the speed decoding number of times that base station is supported, i.e., to all
Mobile terminal all judged using speed decoding frequency threshold value, and for the efficiency for ensureing to decode, speed decoding time
Number threshold value could be arranged to 2 etc., specifically the speed decoding frequency threshold value can flexibly be arranged according to the needs of itself.
In addition, in embodiments of the present invention power is decoded in order to improve base station, when base station is according to Selecting phasing of eating dishes without rice or wine
First rate coding mode, during the speech data information decoding failure sent to the mobile terminal that receives, using itself
The the second rate coding pattern held, decodes to the speech data information of the mobile terminal, including：Preserved according to itself
Speed decodes frequency threshold value, the rate coding pattern of respective numbers is selected as the second rate coding pattern, to the speech data
Information is decoded.
Specifically, in embodiments of the present invention in order to further improve the power that is decoded into of base station, base station is protected according to itself
The speed decoding frequency threshold value deposited, selects the rate coding pattern of respective numbers as the second rate coding pattern, including：Judge
The first rate coding mode, compiles with the speed used in upstream voice data information to the mobile terminal itself is notified
Whether pattern is identical；When it is determined that differing, the rate coding pattern of the notice is selected as the second rate coding pattern；When
When determining identical, other rate coding patterns are selected as the second rate coding pattern.
It is fast from the rate coding pattern selection second itself supported in order to further improve base station in embodiments of the present invention
The efficiency of rate coding mode, improve base station is decoded into power, compiles as the second speed other rate coding patterns are selected
Pattern, including：In other rate coding patterns that itself is supported, the absolute value with the first rate coding mode difference is selected
Minimum rate coding pattern is used as the second rate coding pattern.
Specifically, in embodiments of the present invention base station according to the first rate coding mode of Selecting phasing of eating dishes without rice or wine, to receiving
To mobile terminal send speech data information decoded；When decoding failure, the first rate coding mode is judged, with
Itself notify whether the rate coding pattern used in upstream voice data information to the mobile terminal is identical；When it is determined that
When identical, in other rate coding patterns that itself is supported, select minimum with the absolute value of the first rate coding mode difference
Rate coding pattern as the second rate coding pattern.
In embodiments of the present invention when base station is using the decoding failure of first rate decoding schema, that what is supported using itself is more
Individual rate coding pattern is solved successively as the second rate coding pattern, the speech data information of the mobile terminal to receiving
Code, therefore improve the success rate of base station decoding, it is ensured that the speech quality of user, improve the reliability of system.
Fig. 2 is a kind of detailed description process of AMR AMR speech datas provided in an embodiment of the present invention, the mistake
Journey includes following step：
S201：Base station according to the first rate coding mode of Selecting phasing of eating dishes without rice or wine, what the mobile terminal to receiving sent
Speech data information is decoded.
S202：Judge speech data information that mobile terminal to receiving sends whether successfully decoded, work as judged result
During to be, step S207 is carried out, otherwise, carrying out step S203.
S203：Judge that the speed decoding frequency threshold value for itself preserving, whether more than 1, when judged result is to be, is walked
Rapid S204, otherwise, the speech data information bust this that the mobile terminal sends.
S204：Judge the first rate coding mode, and itself notify to the mobile terminal in upstream voice data
Whether the rate coding pattern used in information is identical, when judged result is to be, carries out step S206, otherwise, carries out step
S205。
S205：The rate coding pattern of the base station selected notice is decoded as the second rate coding pattern.
And in successfully decoded, obtain decoded speech data information.Otherwise, using other rate coding pattern conducts
Second rate coding pattern is decoded.
S206：Base station selected other rate coding patterns itself supported are decoded as the second rate coding pattern.
And in successfully decoded, obtain decoded speech data information.
Specifically, when it is determined that itself notifying to be compiled to the speed used in upstream voice data information of the mobile terminal
When pattern is identical, in other rate coding patterns that itself is supported, select poor with the first rate coding mode absolute
The minimum rate coding pattern of value is used as the second rate coding pattern.
S207：Obtain decoded speech data information.
In embodiments of the present invention when base station is using the decoding failure of first rate decoding schema, that what is supported using itself is more
Individual rate coding pattern, by judging the first rate coding mode, and itself is notified to institute as the second rate coding pattern
Whether the rate coding pattern used in upstream voice data information for stating mobile terminal is identical, when it is determined that when different, selecting
The rate coding pattern of the notice is decoded as the second rate coding pattern；It is first fast with this when it is determined that when identical, selecting
The minimum rate coding pattern of the absolute value of rate coding mode difference as the second rate coding pattern, to the mobile terminal for receiving
Speech data information decoded successively, therefore improve base station decoding success rate, it is ensured that the speech quality of user, carry
The high reliability of system.
Fig. 3 is a kind of the detailed of the AMR AMR speech datas by taking gsm system as an example provided in an embodiment of the present invention
Thin transmitting procedure, the process includes following step：
S301：Sent out according to the first rate coding mode 5.90 of Selecting phasing of eating dishes without rice or wine, the mobile terminal to receiving base station
The speech data information for sending is decoded.
Specifically, base station is demodulated and deinterleaves to the speech data information that the mobile terminal for receiving sends, and will solve
The data for exporting that interweave are mapped as sentencing data firmly, and calculate the accumulation distance of each coded system, and being selected according to accumulation distance should
Corresponding rate coding pattern id0 of speech data information that mobile terminal sends, when in the coding mode instruction (Codec that eats dishes without rice or wine
Mode Indication, CMI) phase place when, using rate coding pattern id0 as first rate coding mode to receiving
The speech data information that mobile terminal sends is decoded.
S302：Judge speech data information that mobile terminal to receiving sends whether successfully decoded, work as judged result
During to be, step S309 is carried out, otherwise, carrying out step S303.
S303：Judge that the speed decoding frequency threshold value for itself preserving, whether more than 1, when judged result is to be, is walked
Rapid S304, otherwise, carries out step S310.
Wherein, the speed decoding frequency threshold value that in embodiments of the present invention base station itself preserves is 4.
S304：Judge the first rate coding mode, notify to the mobile terminal in ascending voice number with base station itself
It is believed that whether the rate coding pattern used in breath is identical, when judged result is to be, step S307 is carried out, otherwise, walked
Rapid S305.
Wherein, the rate coding pattern that in embodiments of the present invention base station itself is supported has four kinds, respectively 4.75,
5.90th, 7.40 and 12.2, according to the quality of wireless channel currently between mobile terminal, base station is notified to the movement for base station
The rate coding pattern used in upstream voice data information of terminal is 7.40.
S305：The decoding for selecting the rate coding pattern of the notice to carry out as the second rate coding mode 7 .40.
S306：Judge select the notice rate coding pattern be as the decoding that the second rate coding mode 7 .40 is carried out
No success, when judged result is to be, carries out step S309, otherwise, carries out step S307.
For example now rate coding pattern id0 is 5.90.
S307：In other rate coding patterns that itself is supported, select and the difference of first rate coding mode 5.90
The minimum rate coding pattern of absolute value selects 4.75 as the second rate coding pattern as the second rate coding pattern.
S308：Judge whether successfully decoded, when successfully decoded, carry out step S309, otherwise, by second rate coding
Pattern carries out step S307 as first rate coding mode.
S309：Obtain decoded speech data information.
S310：The speech data information bust this that the mobile terminal sends.
In embodiments of the present invention when base station is using the decoding failure of first rate decoding schema, that what is supported using itself is more
Individual rate coding pattern is solved successively as the second rate coding pattern, the speech data information of the mobile terminal to receiving
Code, therefore improve the success rate of base station decoding, it is ensured that the speech quality of user, improve the reliability of system.
Fig. 4 is that a kind of structure of the transmitting device of AMR AMR speech datas provided in an embodiment of the present invention is shown
It is intended to, described device includes：
First decoder module 41, for according to the first rate coding mode of Selecting phasing of eating dishes without rice or wine, the movement to receiving
The speech data information that terminal sends is decoded；
Second decoder module 42, for when decoding fails, using the second rate coding pattern that itself is supported, to described
The speech data information of mobile terminal is decoded, and obtains decoded speech data information.
Described device also includes：
Judge module 43, for itself determining whether the speed for preserving decoding frequency threshold value is more than 1, when it is determined that itself is preserved
Rate coding frequency threshold value be more than 1 when, notify that the second decoder module is decoded.
Second decoder module 42, specifically for according to the speed decoding frequency threshold value for itself preserving, selecting respective counts
The rate coding pattern of amount is decoded as the second rate coding pattern to the speech data information.
Second decoder module 42, specifically for judging the first rate coding mode, and itself notifies to the shifting
Whether the rate coding pattern used in upstream voice data information of dynamic terminal is identical；When it is determined that differing, selecting should
The rate coding pattern of notice is used as the second rate coding pattern；When it is determined that when identical, selecting other rate coding patterns to make
For the second rate coding pattern.
Second decoder module 42, specifically in other rate coding patterns itself supported, select with this
The rate coding pattern of the absolute value minimum of one rate coding pattern difference is used as the second rate coding pattern.
Embodiments provide the transmission method and device of a kind of AMR AMR speech datas, the method
In, base station is according to the first rate coding mode of Selecting phasing of eating dishes without rice or wine, the speech data letter that the mobile terminal to receiving sends
Breath is decoded；When decoding failure, using the second rate coding pattern that itself is supported, the voice number to the mobile terminal
It is believed that breath is decoded, and obtain decoded speech data information.Due in embodiments of the present invention, when base station adopts first
It is right using the multiple rate coding patterns itself supported as the second rate coding pattern during the decoding failure of speed decoding schema
The speech data information of the mobile terminal for receiving is decoded successively, therefore improves the success rate of base station decoding, it is ensured that
The speech quality of user, improves the reliability of system.
Described above illustrates and describes the preferred embodiments of the present invention, but as previously mentioned, it should be understood that the present invention is not
Form disclosed herein is confined to, the exclusion to other embodiment is not to be taken as, and can be used for various other combinations, modification
And environment, and can be carried out by the technology or knowledge of above-mentioned teaching or association area in invention contemplated scope described herein
Change.And change that those skilled in the art are carried out and change be without departing from the spirit and scope of the present invention, then all should be in institute of the present invention
In attached scope of the claims.
Claims (8)
1. a kind of transmission method of AMR AMR speech datas, it is characterised in that methods described includes：
Base station is according to the first rate coding mode of Selecting phasing of eating dishes without rice or wine, the speech data letter that the mobile terminal to receiving sends
Breath is decoded；
When decoding failure, using the second rate coding pattern that itself is supported, the speech data information to the mobile terminal
Decoded, and obtained decoded speech data information；
Using the second rate coding pattern that itself is supported, the speech data information of the mobile terminal is decoded, including：
According to the speed decoding frequency threshold value for itself preserving, the rate coding pattern of respective numbers is selected as the second rate coding mould
Formula, to the speech data information decoding.
2. the method for claim 1, it is characterised in that using the second rate coding pattern that itself is supported, to described
Before the speech data information of mobile terminal is decoded, methods described includes：
It is determined that the speed decoding frequency threshold value for preserving is more than 1.
3. the method for claim 1, it is characterised in that select the rate coding pattern of respective numbers as the second speed
Coding mode, including：
Judge the first rate coding mode, and itself notify to the mobile terminal used in upstream voice data information
Rate coding pattern it is whether identical；
When it is determined that differing, the rate coding pattern of the notice is selected as the second rate coding pattern；
When it is determined that when identical, selecting other rate coding patterns as the second rate coding pattern.
4. method as claimed in claim 3, it is characterised in that the selection others rate coding pattern is used as the second speed
Coding mode, including：
In other rate coding patterns that itself is supported, the speed minimum with the absolute value of the first rate coding mode difference is selected
Rate coding mode is used as the second rate coding pattern.
5. a kind of transmitting device of AMR AMR speech datas, it is characterised in that described device includes：
First decoder module, for according to the first rate coding mode of Selecting phasing of eating dishes without rice or wine, the mobile terminal to receiving to be sent out
The speech data information for sending is decoded；
Second decoder module, for when decoding fails, using the second rate coding pattern that itself is supported, to described mobile whole
The speech data information at end is decoded, and obtains decoded speech data information；
Wherein, second decoder module, specifically for according to the speed decoding frequency threshold value for itself preserving, selecting respective numbers
Rate coding pattern as the second rate coding pattern, to speech data information decoding.
6. device as claimed in claim 5, it is characterised in that described device also includes：
Judge module, for itself determining whether the speed for preserving decoding frequency threshold value is more than 1, when it is determined that the speed for itself preserving
When coding frequency threshold value is more than 1, notify that the second decoder module is decoded.
7. device as claimed in claim 5, it is characterised in that second decoder module, it is first fast specifically for judging this
Rate coding mode, be with the rate coding pattern used in upstream voice data information to the mobile terminal itself is notified
It is no identical；When it is determined that differing, the rate coding pattern of the notice is selected as the second rate coding pattern；When it is determined that identical
When, other rate coding patterns are selected as the second rate coding pattern.
8. device as claimed in claim 7, it is characterised in that second decoder module, specifically for what is supported at itself
In other rate coding patterns, the rate coding pattern minimum with the absolute value of first rate coding mode difference is selected as the
Two rate coding patterns.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110130603.XA CN102790997B (en) | 2011-05-19 | 2011-05-19 | Method and device for transmission of adaptive multi-rate (AMR) voice data |
| PCT/CN2012/071120 WO2012155551A1 (en) | 2011-05-19 | 2012-02-14 | Method and device for transmitting adaptive multiple rate amr voice data |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110130603.XA CN102790997B (en) | 2011-05-19 | 2011-05-19 | Method and device for transmission of adaptive multi-rate (AMR) voice data |
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| Publication Number | Publication Date |
|---|---|
| CN102790997A CN102790997A (en) | 2012-11-21 |
| CN102790997B true CN102790997B (en) | 2017-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110130603.XA Expired - Fee Related CN102790997B (en) | 2011-05-19 | 2011-05-19 | Method and device for transmission of adaptive multi-rate (AMR) voice data |
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| Country | Link |
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| CN (1) | CN102790997B (en) |
| WO (1) | WO2012155551A1 (en) |
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| CN109155943B (en) * | 2016-05-13 | 2022-05-17 | 华为技术有限公司 | Method and apparatus for adjusting coding rate |
| CN110364170B (en) * | 2019-05-29 | 2024-01-30 | 平安科技（深圳）有限公司 | Voice transmission method, voice transmission device, computer device and storage medium |
| CN113573233B (en) * | 2021-07-23 | 2022-06-28 | 荣耀终端有限公司 | Voice communication method, electronic device and readable medium |
| CN117835358B (en) * | 2024-03-06 | 2024-05-03 | 中国电子科技集团公司第五十四研究所 | Voice rate self-adaption method of satellite mobile communication system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101355738A (en) * | 2007-07-25 | 2009-01-28 | 中兴通讯股份有限公司 | Voice transmission equipment and method of Abis interface discontinuousness transmission mode |
| CN101409597A (en) * | 2007-10-12 | 2009-04-15 | 华为技术有限公司 | Talking method and apparatus |
| CN101572910A (en) * | 2009-06-08 | 2009-11-04 | 华为技术有限公司 | Method for adjusting speech frame phase, base transceiver station and base station sub-system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6832195B2 (en) * | 2002-07-03 | 2004-12-14 | Sony Ericsson Mobile Communications Ab | System and method for robustly detecting voice and DTX modes |
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2011
- 2011-05-19 CN CN201110130603.XA patent/CN102790997B/en not_active Expired - Fee Related
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101355738A (en) * | 2007-07-25 | 2009-01-28 | 中兴通讯股份有限公司 | Voice transmission equipment and method of Abis interface discontinuousness transmission mode |
| CN101409597A (en) * | 2007-10-12 | 2009-04-15 | 华为技术有限公司 | Talking method and apparatus |
| CN101572910A (en) * | 2009-06-08 | 2009-11-04 | 华为技术有限公司 | Method for adjusting speech frame phase, base transceiver station and base station sub-system |
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| WO2012155551A1 (en) | 2012-11-22 |
| CN102790997A (en) | 2012-11-21 |
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