CN103650627B

CN103650627B - Voice communication method, apparatus and system

Info

Publication number: CN103650627B
Application number: CN201380000622.8A
Authority: CN
Inventors: 罗萌; 严凯
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2013-06-28
Filing date: 2013-06-28
Publication date: 2017-09-29
Anticipated expiration: 2033-06-28
Also published as: WO2014205821A1; CN103650627A

Abstract

The invention discloses a kind of voice communication method and device, it is related to the communications field.The method that the present invention is provided includes：Obtain the first codec TC configuration information and the 3rd TC configuration information evidence；The configuration information of 3rd TC is sent to the first TC, to cause before the first terminal switches, when first TC determines that the configuration information of the first TC is identical with the configuration information of the 3rd TC, the first TC and the 2nd TC maintains to exempt to cascade encoding and decoding TFO connections using the first codec rate；The configuration information of the first codec TC is sent to the 3rd TC, to cause after the completion of the first terminal switches, when 3rd TC determines that the configuration information of the first TC is identical with the configuration information of the 3rd TC, the 3rd TC directly exempts from cascade encoding and decoding TFO using the first codec rate and the 2nd TC foundation and is connected.The present invention is applied to the communications field, for realizing voice communication.

Description

Voice communication method, apparatus and system

Technical field

The present invention relates to the communications field, more particularly to a kind of voice communication method, apparatus and system.

Background technology

As wireless communication technology is continued to develop, requirement more and more higher of the people to voice quality in communication process.At present, Most of global system for mobile communications（Global System of Mobile communication, GSM）System and core net Using time division multiplexing（Time Division Multiplex, TDM）Carry out networking.The whole communication path of communication system On, it is required for carrying out coding-decoding operation twice to speech data, that is, cascades encoding and decoding：Encoding and decoding are complete by mobile phone terminal side Into, another encoding and decoding by network side codec（Transcoder, TC) complete.But, by so voice coder twice Decoding, can increase the propagation delay time of speech data, while can also damage the degree of accuracy of speech data.Thus 3GPP standard agreements are pushed away Go out to exempt to cascade encoding and decoding（Tandem Free Operation, TFO）Pattern, removes an encoding and decoding of network side from, so that Only to coding-decoding operation of speech data row on whole communication path, it can so avoid using cascade code encoding/decoding mode to language The loss that sound data are caused.

But use TFO patterns not can improve the transmission quality of speech data under all call scenes.For example：When User equipment in talking state（User Equipment, UE）When being switched in minizone, communication link can be caused Frequent switching, causes TFO links needs to disconnect and rebuild.When TFO links are rebuild, in order to ensure TFO links keep connecting Connect state, it is necessary to before the handover with after switching reduce codec rate, come check rebuild TFO links two ends TC configuration whether Meet the condition of TFO foundation（Refer to 3GPP28.062）；Meanwhile, it is corresponding after UE switchings after UE completes handover between cells TC（TC after switching can be denoted as）Need to carry out the interaction of configuration frame to obtain mutual configuration information with opposite end TC, to determine to cut Whether the configuration for changing rear TC and opposite end TC is compatible, and the reconstruction of TFO links can be ensured in compatible situation.At present, cut Change rear TC and opposite end TC interaction configuration frame process be：TFO frames, simultaneously are removed in the information frame interacted from TC after switching and opposite end TC Configuration frame is replaced with, to realize the interaction of TC and opposite end TC configurations frame after switching；Due to being possible to carry voice letter in TFO frames Breath, so the loss of voice messaging can be caused.

In the process of reconstruction of TFO links, due to reducing codec rate before UE switchings and after switching, this can be reduced Transmission of speech information amount in the individual period, causes the definition of voice call poor；Simultaneously as TC and opposite end after switching TC interaction configuration frames can cause voice messaging to be lost, and voice call quality is caused compared with macrolesion.

The content of the invention

Embodiments of the invention provide a kind of voice communication method, apparatus and system, can solve the problem that and work as place in the prior art When the UE of talking state is switched in minizone, it is necessary to reduce codec rate during TFO link re-establishments are carried out Cause voice call definition poor, and because the TC after switching and opposite end TC interaction configuration frames can cause voice messaging to be lost Lose, the problem of being caused to voice call quality compared with macrolesion.

To reach above-mentioned purpose, embodiments of the invention are adopted the following technical scheme that：

In a first aspect, the embodiments of the invention provide a kind of voice communication method, methods described includes：

The first codec TC configuration information and the 3rd TC configuration information are obtained, wherein, the first TC is used for First terminal switches the speech data of first terminal described in pre-treatment, and the 3rd TC is used to occur in the first terminal The speech data of the switching post processing first terminal；

The configuration information of 3rd TC is sent to the first TC, to switch in the first terminal Before, when the first TC determines that the configuration information of the first TC is identical with the configuration information of the 3rd TC, the first TC Maintain to exempt to cascade encoding and decoding TFO connections using the first codec rate with the 2nd TC；Wherein, first codec rate is institute State the first TC and the 2nd TC and set up and exempt to cascade the codec rate for determining to use after encoding and decoding TFO connections, the 2nd TC is used for The speech data of second terminal is handled, the second terminal is to maintain the opposite end of voice calling service whole with the first terminal End；

The configuration information of the first codec TC is sent to the 3rd TC, to cut in the first terminal It is described when the 3rd TC determines that the configuration information of the first TC is identical with the configuration information of the 3rd TC after the completion of changing 3rd TC directly exempts from cascade encoding and decoding TFO using the first codec rate and the 2nd TC foundation and is connected.

With reference in a first aspect, in the first possible implementation, the first codec TC's of the acquisition matches somebody with somebody confidence The configuration information of breath and the 3rd TC, including：

Receive the configuration information for the first TC that the first TC is reported；

Receive the configuration information for the 3rd TC that the 3rd TC is reported.

With reference to the first possible implementation of first aspect, in second of possible implementation, the reception institute The configuration information for the first TC that the first TC is reported is stated, including：

The configuration information for the first TC that the first TC is sent is received by signalling path；

The configuration information for the 3rd TC that the 3rd TC is sent is received by signalling path.

With reference in a first aspect, in the third possible implementation, the first codec TC's of the acquisition matches somebody with somebody confidence The configuration information of breath and the 3rd TC, including：

Receive the configuration information for the first TC that the corresponding base station controller BSCs of the first TC are sent.

Second with reference to the first possible implementation or first aspect of first aspect or first aspect may Implementation or first aspect the third possible implementation, it is described in institute in the 4th kind of possible implementation State before first terminal switches, the configuration information of the 3rd TC is sent to the first TC, including：

Before the first terminal switches, the configuration information of the 3rd TC is sent to the first TC corresponding BSC, the first TC is sent to by the corresponding BSC of the first TC by the configuration information of the 3rd TC.

Second aspect, the embodiments of the invention provide a kind of voice communication method, including：

The configuration information of first TC is sent to the 3rd TC, completed with to switch in the first terminal Afterwards, when the 3rd TC determines that the configuration information of the first TC is identical with the configuration information of the 3rd TC, the 3rd TC Directly exempt from cascade encoding and decoding TFO using first codec rate and the 2nd TC foundation to be connected.

With reference to second aspect, in the first possible implementation, the first codec TC's of the acquisition matches somebody with somebody confidence The configuration information of breath, the 2nd TC configuration information and the 3rd TC, including：

It is described to obtain in second of possible implementation with reference to the first possible implementation of second aspect First codec TC configuration information and the 3rd TC configuration information, including：

With reference to second aspect, in the third possible implementation, the first codec TC's of the acquisition matches somebody with somebody confidence The configuration information of breath and the 3rd TC, including：

Receive the configuration information for the 3rd TC that the corresponding base station BS C of the 3rd TC are sent.

With reference to the third possible implementation of second aspect or second aspect, in the 4th kind of possible implementation In, it is described that the configuration information of the first TC is sent to the 3rd TC after first terminal switching, including：

After first terminal switching, the configuration information of the first TC is sent to the corresponding BSC of the 3rd TC, The configuration information of first TC is sent to by the 3rd TC by the corresponding BSC of the 3rd TC.

The third aspect, the embodiments of the invention provide a kind of voice communication method, including：

First TC receives the configuration information for the 3rd TC that base station controller BSC is sent；

Before first terminal switching, the first TC determines the configuration of the configuration information and the first TC of the 3rd TC Information is identical, and the first TC maintains to exempt to cascade encoding and decoding TFO connections using the first codec rate and the 2nd TC；

Wherein, the first TC is used for the speech data that the first terminal is handled before first terminal switches, institute Stating the 3rd TC is used to switch in the first terminal to post-process the speech data of the first terminal；First encoding and decoding Speed is that the first TC and the 2nd TC sets up the codec rate for exempting to determine to use after cascade encoding and decoding TFO connections；Described Two TC are used for the speech data for handling second terminal, and the second terminal is to maintain voice calling service with the first terminal Distant terminal.

With reference to the third aspect, in the first possible implementation, methods described also includes：

First TC sends the configuration information of the first TC to the corresponding base station controller BSCs of the 3rd TC, leads to Cross the corresponding BSC of the 3rd TC and the configuration information of the first TC is sent to the 3rd TC, to cause the 3rd TC After the first terminal switches, determine that the configuration information of the 3rd TC is identical with the configuration information of the first TC When, the 3rd TC directly exempts from cascade encoding and decoding TFO using first codec rate and the 2nd TC foundation and is connected.

Fourth aspect, the embodiments of the invention provide a kind of voice communication method, including：

3rd TC receives the configuration information for the first TC that base station controller BSC is sent；

After first terminal switching, the 3rd TC determines the configuration of the configuration information and the 3rd TC of the first TC Information is identical, and the 3rd TC directly exempts from cascade encoding and decoding TFO using the first codec rate and the 2nd TC foundation and is connected；

With reference to fourth aspect, in the first possible implementation, methods described also includes：

3rd TC sends the configuration information of the 3rd TC to the corresponding BSC of the first TC, passes through described first The configuration information of 3rd TC is sent to the first TC by the corresponding BSC of TC, to cause the first TC described first Before terminal switches, when determining that the configuration information of the first TC is identical with the configuration information of the 3rd TC, then described One TC maintains TFO to be connected with the 2nd TC using first codec rate.

5th aspect, the embodiments of the invention provide a kind of voice communication method, including：

Before first terminal switches, the 2nd TC receives the instruction message that the first TC is sent, according to the instruction message Maintain to exempt from cascade encoding and decoding TFO using the first codec rate and the first TC to be connected, first codec rate is described the One TC and the 2nd TC, which is set up, to exempt to cascade the codec rate for determining to use after encoding and decoding TFO connections；

After first terminal switches, the 2nd TC receives the instruction message that the 3rd TC is sent, according to described Indicate that message is directly set up TFO with the 3rd TC using first codec rate and is connected；

Wherein, the first TC is used for the speech data that the first terminal is handled before first terminal switches, institute Stating the 3rd TC is used to switch in the first terminal to post-process the speech data of the first terminal；First encoding and decoding Speed is that the first TC and the 2nd TC set up and exempt to cascade the codec rate that use is determined after encoding and decoding TFO connections, described the Two TC are used for the speech data for handling second terminal, and the second terminal is to maintain voice calling service with the first terminal Distant terminal.

6th aspect, the embodiments of the invention provide a kind of voice communication assembly, including：

Acquisition module, for obtaining the first codec TC configuration information and the 3rd TC configuration information, wherein, it is described First TC is used for the speech data that the first terminal is handled before first terminal switches, and the 3rd TC is used for described First terminal, which switches, post-processes the speech data of the first terminal；

Sending module, the configuration information of the 3rd TC for the acquisition module to be obtained is sent to the first TC, with So that before the first terminal switches, the first TC determines the configuration information and the 3rd TC of the first TC When configuration information is identical, the first TC and the 2nd TC maintains to exempt to cascade encoding and decoding TFO connections using the first codec rate；Its In, first codec rate is that the first TC and the 2nd TC foundation exempts to determine to use after cascade encoding and decoding TFO connections Codec rate, the 2nd TC is used for the speech data for handling second terminal, and the second terminal is and the first terminal Maintain the distant terminal of voice calling service；

The sending module is additionally operable to send the configuration information of the first codec TC to the 3rd TC, so that Obtain after the completion of first terminal switching, the 3rd TC determines the first TC configuration information and matching somebody with somebody for the 3rd TC Simultaneously, the 3rd TC is directly set up using the first codec rate with the 2nd TC exempts from cascade encoding and decoding TFO to confidence manner of breathing Connection.

With reference to the 6th aspect, in the first possible implementation, the acquisition module includes：

Receiving unit, the configuration information for receiving the first TC that the first TC is reported；

The receiving unit is additionally operable to receive the configuration information for the 3rd TC that the 3rd TC is reported.

With reference to the first possible implementation of the 6th aspect, in second of possible implementation, the reception list First configuration information specifically for receiving the first TC that the first TC is sent by signalling path, and it is logical by signaling Road receives the configuration information for the 3rd TC that the 3rd TC is sent.

With reference to the 6th aspect, in the third possible implementation, the acquisition module is specifically for receiving described the The configuration information for the first TC that the corresponding base station controller BSCs of one TC are sent.

Second with reference to the first possible implementation or the 6th aspect of the 6th aspect or the 6th aspect may Implementation or the 6th aspect the third possible implementation, in the 4th kind of possible implementation, it is described send The configuration information of 3rd TC is sent to the described first TC pairs specifically for before the first terminal switches by module The BSC answered, the first TC is sent to by the corresponding BSC of the first TC by the configuration information of the 3rd TC.

7th aspect, the embodiments of the invention provide a kind of voice communication assembly, including：

Sending module, for the configuration information of the 3rd TC to be sent into the first TC, to cause described first Before terminal switches, the first TC determines that the configuration information of the first TC is identical with the configuration information of the 3rd TC When, the first TC and the 2nd TC maintains to exempt to cascade encoding and decoding TFO connections using the first codec rate；Wherein, described first Codec rate is that the first TC and the 2nd TC sets up the codec rate for exempting to determine to use after cascade encoding and decoding TFO connections, 2nd TC is used for the speech data for handling second terminal, and the second terminal is to maintain voice call with the first terminal The distant terminal of business；

The sending module is additionally operable to the configuration information of the first TC being sent to the 3rd TC, to cause described After the completion of first terminal switching, the 3rd TC determines the configuration information of the first TC and the configuration information phase of the 3rd TC Meanwhile, the 3rd TC directly exempts from cascade encoding and decoding TFO using first codec rate and the 2nd TC foundation and is connected.

With reference to the 7th aspect, in the first possible implementation, the acquisition module includes：

It is described to receive in second of possible implementation with reference to the first possible implementation of the 7th aspect Unit is specifically for receiving the configuration information for the first TC that the first TC is sent by signalling path, and passes through signaling The configuration information for the 3rd TC that 3rd TC described in channel reception is sent.

With reference to the 7th aspect, in the third possible implementation, the acquisition module is specifically for receiving described the The configuration information for the 3rd TC that the corresponding base station BS C of three TC are sent.

With reference to the 7th aspect or the third possible implementation of the 7th aspect, in the 4th kind of possible implementation In, the sending module is specifically for after first terminal switching, the configuration information of the first TC being sent to described The corresponding BSC of 3rd TC, the described 3rd is sent to by the corresponding BSC of the 3rd TC by the configuration information of the first TC TC。

Eighth aspect, the embodiments of the invention provide a kind of voice communication assembly, including：

Receiving module, the configuration information of the 3rd TC for receiving base station controller BSC transmission；

Processing module, the configuration for before first terminal switches, determining the 3rd TC that the receiving module is received Information is identical with local TC configuration information, maintains to exempt to cascade encoding and decoding TFO connections using the first codec rate and the 2nd TC；

Wherein, the local TC is used for the speech data that the first terminal is handled before first terminal switches, institute Stating the 3rd TC is used to switch in the first terminal to post-process the speech data of the first terminal；First encoding and decoding Speed is that the local TC and the 2nd TC sets up the codec rate for exempting to determine to use after cascade encoding and decoding TFO connections；Described Two TC are used for the speech data for handling second terminal, and the second terminal is to maintain voice calling service with the first terminal Distant terminal.

With reference to eighth aspect, in the first possible implementation, in addition to：

Sending module, the configuration information for sending the local TC to the corresponding base station controller BSCs of the 3rd TC, The configuration information of the local TC is sent to by the 3rd TC by the corresponding BSC of the 3rd TC, to cause the described 3rd TC determines that the configuration information of the 3rd TC is identical with the configuration information of the local TC after the first terminal switches When, the 3rd TC directly exempts from cascade encoding and decoding TFO using first codec rate and the 2nd TC foundation and is connected.

9th aspect, the embodiments of the invention provide a kind of voice communication assembly, including：

Receiving module, the configuration information of the first TC for receiving base station controller BSC transmission；

Processing module, the configuration of configuration information and local TC for after first terminal switches, determining the first TC Information is identical, and the local TC directly exempts from cascade encoding and decoding TFO using the first codec rate and the 2nd TC foundation and is connected；

Wherein, the first TC is used for the speech data that the first terminal is handled before first terminal switches, institute Stating local TC is used to switch in the first terminal to post-process the speech data of the first terminal；First encoding and decoding Speed is that the first TC and the 2nd TC sets up the codec rate for exempting to determine to use after cascade encoding and decoding TFO connections；Described Two TC are used for the speech data for handling second terminal, and the second terminal is to maintain voice calling service with the first terminal Distant terminal.

With reference to the 9th aspect, in the first possible implementation, described device also includes：

Sending module, the configuration information of the local TC is sent for TC, by described to the corresponding BSC of the first TC The configuration information of the local TC is sent to the first TC by the corresponding BSC of the first TC, to cause the first TC described It is described when determining that the configuration information of the first TC is identical with the configuration information of the local TC before first terminal switches First TC maintains TFO to be connected with the 2nd TC using first codec rate.

Tenth aspect, the embodiments of the invention provide a kind of voice communication assembly, including：

Receiving module, for before first terminal switches, receiving the instruction message that the first TC is sent, according to the instruction Message is exempted from cascade encoding and decoding TFO using the first codec rate and the first TC maintenances and is connected, and first codec rate is institute State the first TC and local TC and set up and exempt to cascade the codec rate for determining to use after encoding and decoding TFO connections；

The receiving module is additionally operable to after first terminal switches, and receives the instruction message that the 3rd TC is sent, Directly TFO is set up according to the instruction message with the 3rd TC using first codec rate to be connected；

Wherein, the first TC is used for the speech data that the first terminal is handled before first terminal switches, institute Stating the 3rd TC is used to switch in the first terminal to post-process the speech data of the first terminal；First encoding and decoding Speed is that the first TC and local TC sets up the codec rate for exempting to determine to use after cascade encoding and decoding TFO connections, described Ground TC is used for the speech data for handling second terminal, and the second terminal is to maintain voice calling service with the first terminal Distant terminal.

Tenth on the one hand, the embodiments of the invention provide a kind of base station controller BSC, including：

Receiver, for obtaining the first codec TC configuration information and the 3rd TC configuration information, wherein, described the One TC is used to handle the speech data of the first terminal before first terminal switches, and the 3rd TC is used for described the One terminal, which switches, post-processes the speech data of the first terminal；

Emitter, the configuration information of the 3rd TC for institute's receiver to be obtained is sent to the first TC, to cause Before the first terminal switches, the first TC determine the first TC configuration information and the 3rd TC match somebody with somebody confidence Simultaneously, the first TC and the 2nd TC maintains to exempt to cascade encoding and decoding TFO connections manner of breathing using the first codec rate；Wherein, institute It is that the first TC and the 2nd TC sets up the encoding and decoding for exempting to determine to use after cascade encoding and decoding TFO connections to state the first codec rate Speed, the 2nd TC is used for the speech data for handling second terminal, and the second terminal is to maintain language with the first terminal The distant terminal of sound talk business；

The emitter is additionally operable to send the configuration information of the first codec TC to the 3rd TC, to cause After the completion of first terminal switching, the 3rd TC determines the configuration of the configuration information and the 3rd TC of the first TC When information is identical, the 3rd TC directly exempts from cascade encoding and decoding TFO using the first codec rate and the 2nd TC foundation and connected Connect.

With reference to the tenth on the one hand, in the first possible implementation, the receiver is used to receive the first TC The first TC reported configuration information, and receive the configuration information for the 3rd TC that the 3rd TC is reported.

With reference to the first possible implementation of the tenth one side, in second of possible implementation, the reception Machine is used for the configuration information that the first TC that the first TC is sent is received by signalling path, and is connect by signalling path Receive the configuration information for the 3rd TC that the 3rd TC is sent.

With reference to the tenth on the one hand, in the third possible implementation, the receiver is specifically for receiving described the The configuration information for the first TC that the corresponding base station controller BSCs of one TC are sent.

With reference to the tenth one side or the third possible implementation of the tenth one side, the 4th kind of possible realization side In formula, the emitter is specifically for before the first terminal switches, the configuration information of the 3rd TC is sent to The corresponding BSC of first TC, described is sent to by the corresponding BSC of the first TC by the configuration information of the 3rd TC One TC.

12nd aspect, the embodiments of the invention provide a kind of BSC, including：

Emitter, for the configuration information of the 3rd TC to be sent into the first TC, to cause described first eventually Before end switches, when the first TC determines that the configuration information of the first TC is identical with the configuration information of the 3rd TC, First TC and the 2nd TC maintains to exempt to cascade encoding and decoding TFO connections using the first codec rate；Wherein, described first solution is compiled Bit rate is that the first TC and the 2nd TC sets up the codec rate for exempting to determine to use after cascade encoding and decoding TFO connections, described 2nd TC is used for the speech data for handling second terminal, and the second terminal is to maintain voice calling service with the first terminal Distant terminal；

The emitter is additionally operable to the configuration information of the first TC being sent to the 3rd TC, to cause described After the completion of the switching of one terminal, the 3rd TC determines that the configuration information of the first TC is identical with the configuration information of the 3rd TC When, the 3rd TC directly exempts from cascade encoding and decoding TFO using first codec rate and the 2nd TC foundation and is connected.

With reference to the 12nd aspect, in the first possible implementation, the receiver is used to receive the first TC The first TC reported configuration information, and receive the configuration information for the 3rd TC that the 3rd TC is reported.

It is described to connect in second of possible implementation with reference to the first possible implementation of the 12nd aspect Receipts machine is specifically for receiving the configuration information for the first TC that the first TC is sent by signalling path, and passes through signaling The configuration information for the 3rd TC that 3rd TC described in channel reception is sent.

With reference to the 12nd aspect, in the third possible implementation, the receiver is specifically for receiving described the The configuration information for the 3rd TC that the corresponding base station BS C of three TC are sent.

With reference to the 12nd aspect or the third possible implementation of the 12nd aspect, the 4th kind of possible realization side In formula, the emitter is specifically for after first terminal switching, the configuration information of the first TC being sent to described The corresponding BSC of 3rd TC, the described 3rd is sent to by the corresponding BSC of the 3rd TC by the configuration information of the first TC TC。

13rd aspect, the embodiments of the invention provide a kind of codec TC, including：

Receiver, the configuration information of the 3rd TC for receiving base station controller BSC transmission；

Processor, the configuration information for before first terminal switches, determining the 3rd TC that the receiver is received It is identical with local TC configuration information, maintain to exempt to cascade encoding and decoding TFO connections using the first codec rate and the 2nd TC；

With reference to the 13rd aspect, in the first possible implementation, the TC also includes：

Emitter, the configuration information for sending the local TC to the corresponding base station controller BSCs of the 3rd TC, leads to Cross the corresponding BSC of the 3rd TC and the configuration information of the local TC is sent to the 3rd TC, to cause the 3rd TC After the first terminal switches, determine that the configuration information of the 3rd TC is identical with the configuration information of the local TC When, the 3rd TC directly exempts from cascade encoding and decoding TFO using first codec rate and the 2nd TC foundation and is connected.

Fourteenth aspect, the embodiments of the invention provide a kind of codec TC, including：

Receiver, the configuration information of the first TC for receiving base station controller BSC transmission；

Processor, for after first terminal switches, determine the first TC configuration information and local TC match somebody with somebody confidence Manner of breathing is same, and the local TC directly exempts from cascade encoding and decoding TFO using the first codec rate and the 2nd TC foundation and is connected；

With reference to fourteenth aspect, in the first possible implementation, the TC also includes：

Emitter, the configuration information of the local TC is sent for TC to the corresponding BSC of the first TC, passes through described the The configuration information of the local TC is sent to the first TC by the corresponding BSC of one TC, to cause the first TC described Before one terminal switches, when determining that the configuration information of the first TC is identical with the configuration information of the local TC, described One TC maintains TFO to be connected with the 2nd TC using first codec rate.

15th aspect, the embodiments of the invention provide a kind of codec TC, including：

Receiver, for before first terminal switches, receiving the instruction message that the first TC is sent, disappears according to the instruction Breath is exempted from cascade encoding and decoding TFO using the first codec rate and the first TC maintenances and is connected, and first codec rate is described First TC and local TC, which is set up, to exempt to cascade the codec rate for determining to use after encoding and decoding TFO connections；

The receiver is additionally operable to after first terminal switches, and receives the instruction message that the 3rd TC is sent, root Directly TFO is set up according to the instruction message with the 3rd TC using first codec rate to be connected；

16th aspect, the embodiment of the present invention additionally provides a kind of voice communication system, at least carried including the tenth one side TC, the TC and the 15th of fourteenth aspect offer that the BSC of confession, the BSC of the 12nd aspect offer, the 13rd aspect are provided The TC that aspect is provided.

Voice communication method provided in an embodiment of the present invention, apparatus and system, before first terminal switches（Before switching The speech data of the first terminal is handled by the first TC, the speech data of the first terminal is handled after switching by the 3rd TC）, BSC sends the 3rd TC configuration information to the first TC, to cause the first TC can be with when the first terminal is switched over The configuration information of the 3rd TC is known in advance, if the first TC configuration information and the 3rd TC configuration information are identical, institute Stating the first TC can be connected using the first codec rate with the 2nd TC maintenances TFO；After first terminal switches, BSC to 3rd TC sends the first TC configuration information, to cause the 3rd TC to know the configuration information of the first TC in advance, if The configuration information of first TC and the 3rd TC configuration information are identical, then the 3rd TC can be compiled directly using described first Solution bit rate is set up TFO with the 2nd TC and is connected.Compared with prior art, when first terminal needs to switch over, before the handover First TC need not carry out TFO codec rate adjustment, and the 3rd TC need not carry out TFO codec rate adjustment after handover, can be with Directly TFO is set up with the 2nd TC using the first codec rate to be connected（First codec rate is higher than initial rate）, eliminate By initial rate（Compared with low rate）To the first codec rate（Higher rate）Transient process, during TFO link re-establishments Higher codec rate is kept, higher transmission of speech information amount is ensure that, the definition of voice call is improved；The opposing party Face, after first terminal completes switching, the 3rd TC can know the 2nd TC configuration information in advance, so the 3rd TC and the 2nd TC Interaction without realizing configuration frame by removing trau frame, can avoid the loss of voice messaging, it is ensured that voice call quality.

Brief description of the drawings

In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with Other accompanying drawings are obtained according to these accompanying drawings.

Fig. 1 is the flow chart for the voice communication method that the embodiment of the present invention one is provided；

Fig. 2 is the flow chart for the voice communication method that the embodiment of the present invention two is provided；

Fig. 3 is the flow chart for the voice communication method that the embodiment of the present invention three is provided；

Fig. 4 is the flow chart for the voice communication method that the embodiment of the present invention four is provided；

Fig. 5 is the flow chart for the voice communication method that the embodiment of the present invention five is provided；

Fig. 6 is the flow chart for the voice communication method that the embodiment of the present invention six is provided；

Fig. 7 is the structured flowchart for the voice communication assembly that the embodiment of the present invention seven is provided；

Fig. 8 is the structured flowchart for the voice communication assembly that the embodiment of the present invention seven is provided；

Fig. 9 is the structured flowchart for the voice communication assembly that the embodiment of the present invention eight is provided；

Figure 10 is the structured flowchart for the voice communication assembly that the embodiment of the present invention eight is provided；

Figure 11 is the structured flowchart for the voice communication assembly that the embodiment of the present invention nine is provided；

Figure 12 is the structured flowchart for the voice communication assembly that the embodiment of the present invention nine is provided；

Figure 13 is the structured flowchart for the voice communication assembly that the embodiment of the present invention ten is provided；

Figure 14 is the structured flowchart for the voice communication assembly that the embodiment of the present invention 11 is provided；

Figure 15 is the structured flowchart for the BSC that the embodiment of the present invention 12 is provided；

Figure 16 is the structured flowchart for the BSC that the embodiment of the present invention 13 is provided；

Figure 17 is the structured flowchart for the TC that the embodiment of the present invention 14 is provided；

Figure 18 is the structured flowchart for the TC that the embodiment of the present invention 15 is provided；

Figure 19 is the structured flowchart for the TC that the embodiment of the present invention 16 is provided.

Embodiment

Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made Embodiment, belongs to the scope of protection of the invention.

Embodiment one

The embodiments of the invention provide a kind of voice communication method, methods described can apply to base station controller（Base Station Controller, BSC）.

In order to make it easy to understand, the application scenarios of the present embodiment are briefly described first：First terminal and second terminal Between set up and have voice call, before first terminal switches, volume solution is carried out to the speech data of first terminal by the first TC Code processing, the 2nd TC carries out encoding and decoding processing to the speech data of second terminal, and the first TC and the 2nd TC is first terminal Being set up between second terminal has TFO connections；After first terminal switches, by speech datas of the 3rd TC to first terminal Encoding and decoding processing is carried out, the 2nd TC carries out encoding and decoding processing, the 2nd TC and the 3rd to the speech data of second terminal TC needs to set up TFO connections after the first terminal switches.

As shown in figure 1, methods described includes：

101st, the first codec TC configuration information and the 3rd TC configuration information are obtained, wherein, the first TC is used The speech data of the first terminal is handled before being switched in first terminal, the 3rd TC is used in the first terminal Switch and post-process the speech data of the first terminal.

What deserves to be explained is, a BSC manages multiple TC, and each TC handles the language of multiple UE in one or more cells Sound data.If first terminal and second terminal are located at same cell or neighbor cell, the first TC, the 2nd TC and the 3rd TC may be same TC.Wherein, TC can be built in BSC, and placement can also be zoomed out independently of BSC.

Here BSC is the BSC that first terminal is currently located, and can get the first TC of processing first terminal speech data Configuration information.

First terminal and second terminal can be located at same BSC, can also be located under different BSC.

102nd, the configuration information of the 3rd TC is sent to the first TC, to cut in the first terminal Before changing, when the first TC determines that the first TC configuration information is identical with the configuration information of the 3rd TC, the first TC and second TC is that the cascade encoding and decoding TFO connections of exempting from that first terminal and second terminal are set up keep the first codec rate；Wherein, described One codec rate is that the first TC and the 2nd TC sets up the encoding and decoding speed for exempting to determine to use after cascade encoding and decoding TFO connections Rate, the 2nd TC is used for the speech data for handling second terminal, and the second terminal is to maintain voice with the first terminal The distant terminal of talk business.

103rd, the configuration information of the first codec TC is sent to the 3rd TC, to cause described first eventually After the completion of the switching of end, when the 3rd TC determines that the first TC configuration information is identical with the configuration information of the 3rd TC, the 3rd TC is straight Connect to set up to exempt to cascade encoding and decoding TFO using the first codec rate and the 2nd TC and be connected.

In the present embodiment, each TC configuration information at least includes the codec rate collection that each TC is supported, and respectively The code/decode type that TC is supported, in order to which each TC sets up TFO connections.

What deserves to be explained is, the method that the present embodiment is provided is realized by the corresponding BSC of the 3rd TC.In a kind of possible situation Under, the corresponding BSC and corresponding BSC of the 3rd TC of the first TC may be same BSC.

Voice communication method provided in an embodiment of the present invention, before first terminal switches（By the first TC before switching The speech data of the first terminal is managed, the speech data of the first terminal is handled after switching by the 3rd TC）, BSC is to first TC sends the 3rd TC configuration information, to allow the first TC to know institute in advance when the first terminal is switched over The 3rd TC configuration information is stated, if the first TC configuration information and the 3rd TC configuration information are identical, the first TC can To maintain TFO to be connected with the 2nd TC using the first codec rate；After first terminal switches, BSC is sent to the 3rd TC First TC configuration information, to cause the 3rd TC to know the configuration information of the first TC in advance, if the first TC Configuration information and the 3rd TC configuration information it is identical, then the 3rd TC can directly using first codec rate with 2nd TC sets up TFO connections.Compared with prior art, when first terminal needs to switch over, the first TC need not before the handover TFO codec rate adjustment is carried out, the 3rd TC need not carry out TFO codec rate adjustment after handover, can be directly using the One codec rate is set up TFO with the 2nd TC and is connected（First codec rate is higher than initial rate）, eliminate by initial rate （Compared with low rate）To the first codec rate（Higher rate）Transient process, kept during TFO link re-establishments it is higher compile Bit rate is solved, higher transmission of speech information amount is ensure that, the definition of voice call is improved；On the other hand, first eventually End is completed after switching, and the 3rd TC can know the 2nd TC configuration information in advance, so the 3rd TC and the 2nd TC is without by going The interaction of configuration frame is realized except trau frame, the loss of voice messaging can be avoided, it is ensured that voice call quality.

As a kind of specific embodiment, step 101 is specially：

The BSC receives the configuration information for the first TC that the first TC is reported, and receives on the 3rd TC The 3rd TC of report configuration information.

It is preferred that, in order to ensure the quality of service of speech business, the BSC can receive described first by signalling path The configuration information for the first TC that TC is sent, and receive the 3rd TC's that the 3rd TC is sent by signalling path Configuration information.Using above-mentioned technical proposal, service channel will not be taken when transmitting TC configuration information, it can be ensured that voice industry The quality of service of business.

What deserves to be explained is, optionally, if the first TC and the 3rd TC belong to different BSC management, above-mentioned steps 101 can be with Including following manner：The BSC receives the configuration information for the first TC that the corresponding BSC of the first TC are sent.

Specifically, when the first TC and the 3rd TC belongs to different BSC management, above-mentioned steps 102 include：Described Before one terminal switches, the configuration information of the 3rd TC is sent to the corresponding BSC of the first TC by the BSC, is passed through The configuration information of 3rd TC is sent to the first TC by the corresponding BSC of the first TC, to cause the first TC true When fixed first TC configuration information is identical with the configuration information of the 3rd TC, the first TC and the 2nd TC uses first Codec rate maintains to exempt to cascade encoding and decoding TFO connections.

Embodiment two

As shown in Fig. 2 methods described includes：

201st, the first codec TC configuration information and the 3rd TC configuration information are obtained, wherein, the first TC is used The speech data of the first terminal is handled before being switched in first terminal, the 3rd TC is used in the first terminal Switch and post-process the speech data of the first terminal.

202nd, the configuration information of the 3rd TC is sent to the first TC, to cut in the first terminal Before changing, when the first TC determines that the configuration information of the first TC is identical with the configuration information of the 3rd TC, described first TC and the 2nd TC maintains to exempt to cascade encoding and decoding TFO connections using the first codec rate；Wherein, first codec rate is First TC and the 2nd TC, which are set up, to exempt to cascade the codec rate for determining to use after encoding and decoding TFO connections, and the 2nd TC is used In the speech data of processing second terminal, the second terminal is to maintain the opposite end of voice calling service whole with the first terminal End.

203rd, the configuration information of the first codec TC is sent to the 3rd TC, to cause described first eventually After end switches, when the 3rd TC determines that the configuration information of the first TC is identical with the configuration information of the 3rd TC, 3rd TC directly exempts from cascade encoding and decoding TFO using the first codec rate and the 2nd TC foundation and is connected.

What deserves to be explained is, the method that the present embodiment is provided is realized by the corresponding BSC of the first TC.In a kind of possible situation Under, the corresponding BSC and corresponding BSC of the 3rd TC of the first TC may be same BSC.

As a kind of specific embodiment, step 201 is specially：

What deserves to be explained is, optionally, if the first TC and the 3rd TC belong to different BSC management, above-mentioned steps 201 can be with Including following manner：The BSC receives the configuration information for the 3rd TC that the corresponding BSC of the 3rd TC are sent.

Specifically, when the first TC and the 3rd TC belongs to different BSC management, above-mentioned steps 203 include：Described After the switching of one terminal, the configuration information of the first TC is sent to the corresponding BSC of the 3rd TC, by the described 3rd TC pairs The configuration information of first TC is sent to the 3rd TC by the BSC answered, to cause the 3rd TC to determine the first TC Configuration information it is identical with the configuration information of the 3rd TC when, the 3rd TC directly using first codec rate with 2nd TC, which is set up, to exempt to cascade encoding and decoding TFO connections.

Embodiment three

A kind of voice communication method is present embodiments provided, methods described can apply to TC.

Specifically, application scenarios as described above, the voice communication method that the present embodiment is provided can be by the first TC Realize.As shown in figure 3, methods described includes：

301st, the first TC obtains the 3rd TC configuration information.

Specifically, the first TC can obtain the described 3rd by receiving the configuration information for the 3rd TC that BSC is sent TC configuration information.

What deserves to be explained is, a BSC manages multiple TC, and each TC handles the language of multiple UE in one or more cells Sound data.If first terminal and second terminal are located at same cell or neighbor cell, the first TC, the 2nd TC and the 3rd TC may be same TC.

302nd, before first terminal switching, the first TC determines the configuration information and the first TC of the 3rd TC Configuration information is identical, and the first TC maintains to exempt to cascade encoding and decoding TFO connections using the first codec rate and the 2nd TC.

Voice communication method provided in an embodiment of the present invention, before first terminal switches（By the first TC before switching The speech data of the first terminal is managed, the speech data of the first terminal is handled after switching by the 3rd TC）, the first TC The configuration information of the 3rd TC can be known in advance when the first terminal is switched over, if the first TC configuration information Identical with the 3rd TC configuration information, then the first TC can be connected using the first codec rate with the 2nd TC maintenances TFO. Compared with prior art, when first terminal needs to switch over, the first TC need not carry out TFO codec rate tune before the handover It is whole, eliminate by initial rate（Compared with low rate）To the first codec rate（Higher rate）Transient process, in TFO link weights Higher codec rate is kept during building, higher transmission of speech information amount is ensure that, the definition of voice call is improved.

As a kind of optional embodiment, on the basis of the voice communication method shown in Fig. 3, it can also include Following steps：First TC can be by the corresponding BSC of the first TC and the corresponding base station controller BSCs of the 3rd TC to Three TC transmit the configuration information of the first TC, and to cause after the first terminal switches, the 3rd TC determines institute State the 3rd TC configuration information it is identical with the configuration information of the first TC when；3rd TC directly compiles solution using described first Bit rate is exempted from cascade encoding and decoding TFO with the 2nd TC foundation and is connected.

Using above-mentioned additional step, after first terminal switches, BSC matches somebody with somebody confidence to the first TC's of the 3rd TC transmissions Breath, to cause the 3rd TC to know the configuration information of the first TC in advance, if the configuration information of the first TC and the Three TC configuration information is identical, then the 3rd TC directly can set up TFO using first codec rate and the 2nd TC Connection.Compared with prior art, when first terminal needs to switch over, the first TC need not carry out TFO encoding and decoding before the handover Speed adjust, after handover the 3rd TC need not carry out TFO codec rate adjustment, can directly using the first codec rate with 2nd TC sets up TFO connections（First codec rate is higher than initial rate）, eliminate by initial rate（Compared with low rate）To One codec rate（Higher rate）Transient process, higher codec rate, Neng Goubao are kept during TFO link re-establishments The higher transmission of speech information amount of card, improves the definition of voice call；On the other hand, after first terminal completes switching, the Three TC can know the 2nd TC configuration information in advance, so the 3rd TC and the 2nd TC by removing trau frame to realize without being matched somebody with somebody The interaction of frame is put, the loss of voice messaging can be avoided, it is ensured that voice call quality.

Example IV

Specifically, application scenarios as described above, the voice communication method that the present embodiment is provided can be by the 3rd TC Realize.As shown in figure 4, methods described includes：

401st, the 3rd TC obtains the first TC configuration information.

Specifically, the 3rd TC receives the configuration information for the first TC that base station controller BSC is sent.

402nd, after first terminal switching, the 3rd TC determines the configuration information and the 3rd TC of the first TC Configuration information is identical, and the 3rd TC is directly set up using the first codec rate with the 2nd TC exempts from cascade encoding and decoding TFO Connection.

Voice communication method provided in an embodiment of the present invention, after first terminal switches（By the first TC before switching The speech data of the first terminal is managed, the speech data of the first terminal is handled after switching by the 3rd TC）, the 3rd TC The configuration information of the first TC can be known in advance, if the configuration information and the 3rd TC configuration information phase of the first TC Together, then the 3rd TC directly can set up TFO with the 2nd TC using first codec rate and be connected.With prior art phase Than, when first terminal needs to switch over, the 3rd TC need not carry out TFO codec rate adjustment after first terminal switching, Directly TFO can be set up with the 2nd TC using the first codec rate to be connected（First codec rate is higher than initial rate）, save Go by initial rate（Compared with low rate）To the first codec rate（Higher rate）Transient process, in TFO link re-establishment mistakes Higher codec rate is kept in journey, higher transmission of speech information amount is ensure that, the definition of voice call is improved；It is another Aspect, after first terminal completes switching, the 3rd TC can know the 2nd TC configuration information in advance, so the 3rd TC and second Interactions of the TC without realizing configuration frame by removing trau frame, can avoid the loss of voice messaging, it is ensured that voice call matter Amount.

As a kind of optional embodiment, on the basis of the voice communication method shown in Fig. 4, it can also include Following steps：3rd TC transmits described the by the corresponding BSC of the 3rd TC and corresponding BSC of the first TC to the first TC Three TC configuration information, to cause the first TC before the first terminal switches, to determine the configuration of the first TC When information is identical with the configuration information of the 3rd TC, the first TC and the 2nd TC uses first codec rate Maintain TFO connections.

Using above-mentioned additional step, before first terminal switches, the first TC is cut in the first terminal The configuration information of the 3rd TC can be known when changing in advance, if the first TC configuration information and the 3rd TC configuration information phase Together, then the first TC can be connected using the first codec rate with the 2nd TC maintenances TFO.Compared with prior art, When one terminal needs to switch over, the first TC need not carry out TFO codec rate adjustment before the handover, eliminate by initial rate （Compared with low rate）To the first codec rate（Higher rate）Transient process, kept during TFO link re-establishments it is higher compile Bit rate is solved, higher transmission of speech information amount is ensure that, the definition of voice call is improved.

Embodiment five

Specifically, application scenarios as described above, the voice communication method that the present embodiment is provided can be by the 2nd TC Realize.As shown in figure 5, methods described includes：

501st, before first terminal switches, the 2nd TC receives the instruction message that the first TC is sent, and is indicated according to described Message is exempted from cascade encoding and decoding TFO using the first codec rate and the first TC maintenances and is connected, and first codec rate is institute State the first TC and the 2nd TC and set up and exempt to cascade the codec rate for determining to use after encoding and decoding TFO connections.

502nd, after first terminal switches, the 2nd TC receives the instruction message that the 3rd TC is sent, according to The instruction message is directly set up TFO with the 3rd TC using first codec rate and is connected.

Voice communication method provided in an embodiment of the present invention, before first terminal switches, the 2nd TC can be according to The instruction message that one TC is sent maintains TFO to be connected using the first codec rate with the first TC；After first terminal sends switching, The instruction message that 2nd TC can be sent according to the 3rd TC is directly built using the first encoding and decoding bit rate with the 3rd TC Vertical TFO connections.Compared with prior art, when first terminal needs to switch over, the 2nd TC need not carry out TFO volumes before the handover Code-rate adjusting is solved, the 2nd TC can directly use the first encoding and decoding without TFO codec rate adjustment is carried out after handover Speed is set up TFO with the 3rd TC and is connected（First codec rate is higher than initial rate）, eliminate by initial rate（Compared with low speed Rate）To the first codec rate（Higher rate）Transient process, higher encoding and decoding speed is kept during TFO link re-establishments Rate, ensure that higher transmission of speech information amount, improve the definition of voice call.

Embodiment six

On the basis of Fig. 1-embodiment illustrated in fig. 5, further, a kind of voice communication method is present embodiments provided.

As shown in fig. 6, methods described includes：

601st, set up in first terminal and second terminal in TFO voice call process, the first TC reports described first to BSC TC configuration information.

It is emphasized that the present embodiment is described emphatically by main object of first terminal, so in the present embodiment The 2nd TC refer in particular to the opposite end of first terminal（That is second terminal）Corresponding TC, does not refer to the TC of some fixation singly.For example, In the handoff procedure of first terminal, if second terminal does not switch, corresponding 2nd TC of the second terminal is fixed；Such as Fruit second terminal switches, then corresponding 2nd TC of the second terminal may be to be multiple, including the TC before switching and switching TC afterwards.

602nd, BSC receives the configuration information by the first TC the first TC reported.

603rd, when first terminal needs to switch, the BSC determines corresponding TC after the first terminal switching, i.e., 3rd TC, obtains the configuration information of the 3rd TC.

If specifically, the 3rd TC falls within the BSC management, the 3rd TC can be directly to the BSC Report the configuration information of the 3rd TC.

It is preferred that, in order to ensure the complete transmission of voice messaging, it is ensured that voice call quality, the BSC can pass through letter Make the configuration information of the first TC of the first TC transmissions described in channel reception；And, receive the described 3rd by signalling path The configuration information for the 3rd TC that TC is reported.I.e. when realizing step 602 and 603, the first TC can be logical by signaling The configuration information of first TC is sent to the BSC by road, and the 3rd TC can be by signalling path by the configuration of itself Information is sent to the BSC.

What deserves to be explained is, the signalling path is the designated lane for transmitting signaling.Using the above method, passed to BSC Service channel need not be taken during defeated TC configuration informations, the quality of service of user speech business is ensure that.

604th, before the first terminal switches, the BSC sends the configuration information of the 3rd TC to described First TC.

Specifically, in the present embodiment, " before first terminal switches " refers to：The first terminal, which is determined, to be entered Row switches but handoff procedure is not yet proceeded by.

For example, in the implementation process of this step, the configuration information of the 3rd TC can be carried on by the BSC will Switching（Handover_Soon）The first TC is sent in message.

605th, it is, by handover request, therefrom to obtain the configuration information of the 3rd TC that the first TC, which is received described, it is determined that When first TC configuration information is identical with the configuration information of the 3rd TC, the first TC and the 2nd TC uses the first encoding and decoding Speed maintains TFO connections；If the first TC configuration information and the 3rd TC configuration information are differed, the first TC and 2nd TC uses initial rate（Initial rate is less than the first codec rate）Maintain TFO connections.

What deserves to be explained is, in the prior art, when the first TC is received handover request i.e.（It is of the prior art to cut Changing does not include TC configuration information in message）Afterwards, the rate control mode under handoff scenario can be triggered（Rate Control for Handover RCh）, that is, reduce TFO frames（Carry the frame of voice messaging）Codec rate is to initial rate, and to opposite end TC（I.e. 2nd TC）Rate request, the rate request is used to ask opposite end TC to reduce codec rate；Opposite end TC is received and responded The rate request, reduction local terminal TC TFO frames codec rate to initial rate.

It is emphasized that compared with above-mentioned initial rate, first codec rate in the present embodiment is higher, Higher transmission of speech information amount is ensure that in handoff procedure, the definition of voice call is improved.

606th, the BSC sends the configuration information of the first TC to the 3rd TC, so that proper described first is whole After end switches, when the 3rd TC determines that the configuration information of the first TC is identical with local 3rd TC configuration information, 3rd TC directly sets up TFO with the 2nd TC using first codec rate and is connected；If the first TC's matches somebody with somebody Confidence is ceased and local 3rd TC configuration information is differed, then the 3rd TC is set up using prior art with the 2nd TC TFO connections.

What deserves to be explained is, if setting up TFO connections using prior art, after first terminal completes switching, the 3rd TC performs the initial pattern of speed control（Rate Control for Initial RCi）, reduction codec rate will be carried Rate request to initial rate by TFO frames issues the 2nd TC, if the 2nd TC supports the initial rate, can respond and come from 3rd TC rate request, the TFO frames of initial rate are sent to the 3rd TC.After the 3rd TC receives these TFO frames, it is possible to Start to rebuild TFO connections.After TFO connections are set up, the 3rd TC and the 2nd TC can exchange each by way of exchanging configuration frame From configuration information, made a decision according to the configuration of opposite end and the configuration of local terminal, if both sides' configuration is compatible, be adjusted to higher Codec rate continue keep TFO connections；If both sides' configuration is incompatible, TFO connections are disconnected.

As can be seen here, compared with prior art, the method provided using embodiment, before TFO connections foundation, the 3rd TC The first TC configuration information has been known in advance, so the 3rd TC can be directly with higher codec rate（For example it is above-mentioned First codec rate）Set up with the 2nd TC and maintain TFO to be connected, the time set up required for TFO connections can not only be reduced, And directly can be communicated using higher codec rate, it is ensured that speech quality.On the other hand, completed in first terminal After switching, the 3rd TC can know the 2nd TC configuration information in advance, so the 3rd TC and the 2nd TC is without by removing TRAU Frame configures the interaction of frame to realize, can avoid the loss of voice messaging, it is ensured that voice call quality.

What deserves to be explained is, the above method is carried out in case of the first TC and the 3rd TC belong to same BSC management Illustrate.As a kind of extended mode, the scene of different BSC management is belonged to for the first TC and the 3rd TC, can be before switching BSC the BSC that each TC configuration information is transmitted to after switching by the signalling path between core net or BSC can be applied to the One TC and the 3rd TC belong to the scene of different BSC management.First BSC management, the after switching are belonged to the first TC before switching Three TC belong to exemplified by the 2nd BSC management, and the method that each TC configuration information is obtained to the 2nd BSC is illustrated down：

After S1, first terminal switching, the first BSC leads to the first TC configuration information by the signaling between core net or BSC Road is transmitted to the 2nd BSC.

For example, the configuration information of the first TC configuration information and the 2nd TC can be passed through handover request by the first BSC （HANDOVER REQUIRED）Old BSS to New BSS information cells in message are sent to the 2nd BSC.

S2, the 2nd BSC are according to the configuration information from the first BSC the first TC obtained, by the configuration of the first TC Information is sent to the 3rd TC and carries out TFO establishment of connections.

Wherein, the specific of TFO connections sets up that process is similar to embodiment illustrated in fig. 6, and here is omitted.

What deserves to be explained is, it is AMR for code encoding/decoding mode（Adaptive Multi-Rate, adaptive multi-beam forming）Class The call business of type, needs to carry out speed adjust in TFO connection reconstructions, so the method that the present embodiment is provided is particularly suitable for use in Using the call business of AMR code encoding/decoding modes.However, it is desirable to, it is emphasized that for calling industry of the encoding and decoding for non-AMR types Business, using method provided in an embodiment of the present invention, by the configuration information for obtaining TC in advance（Configuration frame including each TC）, cutting Source TC is enabled to obtain target TC configuration frame information in advance before changing, target TC can know source TC in advance and right after handover TC configuration frame information is held, the interaction of target TC and opposite end TC without realizing configuration frame by removing trau frame can be avoided The loss of voice messaging, is reduced in TFO process of reconstruction because interaction configuration frame is to the damage caused by voice quality.

Embodiment seven

A kind of voice communication assembly is present embodiments provided, the embodiment of the method shown in Fig. 1 can be realized, and realize figure The method of the corresponding BSC sides of 3rd TC in 2- Fig. 6.

As shown in fig. 7, described device includes：

Acquisition module 71, for obtaining the first codec TC configuration information and the 3rd TC configuration information, wherein, institute The speech data that the first TC is used to handle the first terminal before first terminal switches is stated, the 3rd TC is used in institute State first terminal and switch and post-process the speech data of the first terminal；

Sending module 72, the configuration information of the 3rd TC for the acquisition module to be obtained is sent to the first TC, To cause before the first terminal switches, the first TC determines the configuration information and the 3rd TC of the first TC Configuration information it is identical when, the first TC and the 2nd TC using the first codec rate maintain exempt from cascade encoding and decoding TFO connections； Wherein, first codec rate is that the first TC and the 2nd TC foundation exempts to determine to use after cascade encoding and decoding TFO connections Codec rate, the 2nd TC is used to handling the speech data of second terminal, and the second terminal is and described first eventually End maintains the distant terminal of voice calling service；

The sending module 72 is additionally operable to send the configuration information of the first codec TC to the 3rd TC, with So that after the completion of first terminal switching, the 3rd TC determines the configuration information and the 3rd TC of the first TC When configuration information is identical, the 3rd TC is directly set up using the first codec rate with the 2nd TC to exempt to cascade encoding and decoding TFO connections.

Further, as shown in figure 8, the acquisition module 71 includes：

Receiving unit 711, the configuration information for receiving the first TC that the first TC is reported；

The receiving unit 711 is additionally operable to receive the configuration information for the 3rd TC that the 3rd TC is reported.

Specifically, the receiving unit 711 is used to receive the first TC that the first TC is sent by signalling path Configuration information, and receive by signalling path the configuration information for the 3rd TC that the 3rd TC is sent.

When the first TC and the 3rd TC belongs to different BSC management, the acquisition module 71 is described specifically for receiving The configuration information for the first TC that the corresponding base station controller BSCs of first TC are sent.

Specifically, the sending module 72 is used for before the first terminal switches, by the configuration of the 3rd TC Information is sent to the corresponding BSC of the first TC, is sent out the configuration information of the 3rd TC by the corresponding BSC of the first TC Give the first TC.

Voice communication assembly provided in an embodiment of the present invention, before first terminal switches（By the first TC before switching The speech data of the first terminal is managed, the speech data of the first terminal is handled after switching by the 3rd TC）, BSC is to first TC sends the 3rd TC configuration information, to allow the first TC to know institute in advance when the first terminal is switched over The 3rd TC configuration information is stated, if the first TC configuration information and the 3rd TC configuration information are identical, the first TC can To maintain TFO to be connected with the 2nd TC using the first codec rate；After first terminal switches, BSC is sent to the 3rd TC First TC configuration information, to cause the 3rd TC to know the configuration information of the first TC in advance, if the first TC Configuration information and the 3rd TC configuration information it is identical, then the 3rd TC can directly using first codec rate with 2nd TC sets up TFO connections.Compared with prior art, when first terminal needs to switch over, the first TC need not before the handover TFO codec rate adjustment is carried out, the 3rd TC need not carry out TFO codec rate adjustment after handover, can be directly using the One codec rate is set up TFO with the 2nd TC and is connected（First codec rate is higher than initial rate）, eliminate by initial rate （Compared with low rate）To the first codec rate（Higher rate）Transient process, kept during TFO link re-establishments it is higher compile Bit rate is solved, higher transmission of speech information amount is ensure that, the definition of voice call is improved；On the other hand, first eventually End is completed after switching, and the 3rd TC can know the 2nd TC configuration information in advance, so the 3rd TC and the 2nd TC is without by going The interaction of configuration frame is realized except trau frame, the loss of voice messaging can be avoided, it is ensured that voice call quality.

Embodiment eight

The embodiments of the invention provide a kind of voice communication assembly, the embodiment of the method shown in above-mentioned Fig. 2 can be realized, with And the method for realizing the corresponding BSC sides of the first TC in Fig. 1, Fig. 3-Fig. 6.

As shown in figure 9, described device includes：

Acquisition module 91, for obtaining the first codec TC configuration information and the 3rd TC configuration information, wherein, institute The speech data that the first TC is used to handle the first terminal before first terminal switches is stated, the 3rd TC is used in institute State first terminal and switch and post-process the speech data of the first terminal；

Sending module 92, for the configuration information of the 3rd TC to be sent into the first TC, to cause described Before one terminal switches, the first TC determines that the configuration information of the first TC is identical with the configuration information of the 3rd TC When, the first TC and the 2nd TC maintains to exempt to cascade encoding and decoding TFO connections using the first codec rate；Wherein, described first Codec rate is that the first TC and the 2nd TC sets up the codec rate for exempting to determine to use after cascade encoding and decoding TFO connections, 2nd TC is used for the speech data for handling second terminal, and the second terminal is to maintain voice call with the first terminal The distant terminal of business；

The sending module 92 is additionally operable to the configuration information of the first TC being sent to the 3rd TC, to cause in institute State after the completion of first terminal switching, the 3rd TC determines the configuration information of the first TC and the configuration information of the 3rd TC When identical, the 3rd TC is directly set up using first codec rate with the 2nd TC exempts from cascade encoding and decoding TFO companies Connect.

As shown in Figure 10, the acquisition module 91 includes：

Receiving unit 911, the configuration information for receiving the first TC that the first TC is reported；

The receiving unit 911 is additionally operable to receive the configuration information for the 3rd TC that the 3rd TC is reported.

Specifically, the receiving unit 911 is used to receive the first TC that the first TC is sent by signalling path Configuration information, and receive by signalling path the configuration information for the 3rd TC that the 3rd TC is sent.

When the first TC and the 3rd TC belongs to different BSC management, the acquisition module 91 is described specifically for receiving The configuration information for the 3rd TC that the corresponding base station BS C of 3rd TC are sent.

Specifically, the sending module 92 is used for after first terminal switching, by the configuration information of the first TC The corresponding BSC of the 3rd TC are sent to, the configuration information of the first TC are sent to by the corresponding BSC of the 3rd TC 3rd TC.

Embodiment nine

The embodiments of the invention provide a kind of voice communication assembly, the embodiment of the method shown in above-mentioned Fig. 3 can be realized, with And realize the method that the first TC is performed in Fig. 1-2, Fig. 4-Fig. 6.

As shown in figure 11, the voice communication assembly includes：

Receiving module 1101, the configuration information of the 3rd TC for receiving base station controller BSC transmission；

Processing module 1102, for before first terminal switches, determining the receiving module 1101 is received the described 3rd TC configuration information is identical with local TC configuration information, maintains to exempt to cascade encoding and decoding using the first codec rate and the 2nd TC TFO connections；

As shown in figure 12, described device also includes：

Sending module 1103, the configuration for sending the local TC to the corresponding base station controller BSCs of the 3rd TC Information, the 3rd TC is sent to by the corresponding BSC of the 3rd TC by the configuration information of the local TC, described to cause 3rd TC determines the configuration information of the 3rd TC and the configuration information of the local TC after the first terminal switches When identical, the 3rd TC is directly set up using first codec rate with the 2nd TC exempts from cascade encoding and decoding TFO companies Connect.

Voice communication assembly provided in an embodiment of the present invention, before first terminal switches（By the first TC before switching The speech data of the first terminal is managed, the speech data of the first terminal is handled after switching by the 3rd TC）, the first TC The configuration information of the 3rd TC can be known in advance when the first terminal is switched over, if the first TC configuration information Identical with the 3rd TC configuration information, then the first TC can be connected using the first codec rate with the 2nd TC maintenances TFO. Compared with prior art, when first terminal needs to switch over, the first TC need not carry out TFO codec rate tune before the handover It is whole, eliminate by initial rate（Compared with low rate）To the first codec rate（Higher rate）Transient process, in TFO link weights Higher codec rate is kept during building, higher transmission of speech information amount is ensure that, the definition of voice call is improved.

Embodiment ten

The embodiments of the invention provide a kind of voice communication assembly, the embodiment of the method shown in above-mentioned Fig. 4 can be realized, with And realize the method that the 3rd TC is performed in Fig. 1-3, Fig. 5-6.

As shown in figure 13, the voice communication assembly includes：

Receiving module 1301, the configuration information of the first TC for receiving base station controller BSC transmission；

Processing module 1302, configuration information and local TC for after first terminal switches, determining the first TC Configuration information is identical, and the local TC is directly set up using the first codec rate with the 2nd TC exempts from cascade encoding and decoding TFO Connection；

Optionally, described device also includes：

Sending module 1303, sends the configuration information of the local TC to the corresponding BSC of the first TC for TC, passes through The configuration information of the local TC is sent to the first TC by the corresponding BSC of the first TC, to cause the first TC to exist Before the first terminal switches, when determining that the configuration information of the first TC is identical with the configuration information of the local TC, First TC maintains TFO to be connected with the 2nd TC using first codec rate.

Voice communication assembly provided in an embodiment of the present invention, after first terminal switches（By the first TC before switching The speech data of the first terminal is managed, the speech data of the first terminal is handled after switching by the 3rd TC）, the 3rd TC The configuration information of the first TC can be known in advance, if the configuration information and the 3rd TC configuration information phase of the first TC Together, then the 3rd TC directly can set up TFO with the 2nd TC using first codec rate and be connected.With prior art phase Than, when first terminal needs to switch over, the 3rd TC need not carry out TFO codec rate adjustment after first terminal switching, Directly TFO can be set up with the 2nd TC using the first codec rate to be connected（First codec rate is higher than initial rate）, save Go by initial rate（Compared with low rate）To the first codec rate（Higher rate）Transient process, in TFO link re-establishment mistakes Higher codec rate is kept in journey, higher transmission of speech information amount is ensure that, the definition of voice call is improved；It is another Aspect, after first terminal completes switching, the 3rd TC can know the 2nd TC configuration information in advance, so the 3rd TC and second Interactions of the TC without realizing configuration frame by removing trau frame, can avoid the loss of voice messaging, it is ensured that voice call matter Amount.

Embodiment 11

The embodiments of the invention provide a kind of voice communication assembly, the embodiment of the method shown in above-mentioned Fig. 5 can be realized, with And realize the method that the 2nd TC is performed in Fig. 1-4, Fig. 6.

As shown in figure 14, the voice communication assembly includes：

Receiving module 1401, for before first terminal switches, receiving the instruction message that the first TC is sent, according to this Indicate that message is exempted from cascade encoding and decoding TFO using the first codec rate and the first TC maintenances and is connected, first codec rate It is that the first TC and local TC sets up the codec rate for exempting to determine to use after cascade encoding and decoding TFO connections；

The receiving module 1401 is additionally operable to after first terminal switches, and the instruction for receiving the 3rd TC transmissions disappears Breath, directly sets up TFO with the 3rd TC using first codec rate according to the instruction message and is connected；

Voice communication assembly provided in an embodiment of the present invention, before first terminal switches, the 2nd TC can be according to The instruction message that one TC is sent maintains TFO to be connected using the first codec rate with the first TC；After first terminal sends switching, The instruction message that 2nd TC can be sent according to the 3rd TC is directly built using the first encoding and decoding bit rate with the 3rd TC Vertical TFO connections.Compared with prior art, when first terminal needs to switch over, the 2nd TC need not carry out TFO volumes before the handover Code-rate adjusting is solved, the 2nd TC can directly use the first encoding and decoding without TFO codec rate adjustment is carried out after handover Speed is set up TFO with the 3rd TC and is connected（First codec rate is higher than initial rate）, eliminate by initial rate（Compared with low speed Rate）To the first codec rate（Higher rate）Transient process, higher encoding and decoding speed is kept during TFO link re-establishments Rate, ensure that higher transmission of speech information amount, improve the definition of voice call.

Embodiment 12

A kind of BSC is present embodiments provided, the embodiment of the method shown in Fig. 1 can be realized, and realize in Fig. 2-Fig. 6 The method of the corresponding BSC sides of three TC.

As shown in figure 15, the BSC includes：

Receiver 1501, for obtaining the first codec TC configuration information and the 3rd TC configuration information, wherein, institute The speech data that the first TC is used to handle the first terminal before first terminal switches is stated, the 3rd TC is used in institute State first terminal and switch and post-process the speech data of the first terminal；

Emitter 1502, the configuration information of the 3rd TC for institute's receiver to be obtained is sent to the first TC, so that Obtain before the first terminal switches, the first TC determines the first TC configuration information and matching somebody with somebody for the 3rd TC Simultaneously, the first TC and the 2nd TC maintains to exempt to cascade encoding and decoding TFO connections confidence manner of breathing using the first codec rate；Its In, first codec rate is that the first TC and the 2nd TC foundation exempts to determine to use after cascade encoding and decoding TFO connections Codec rate, the 2nd TC is used for the speech data for handling second terminal, and the second terminal is and the first terminal Maintain the distant terminal of voice calling service；

The emitter 1502 is additionally operable to send the configuration information of the first codec TC to the 3rd TC, with So that after the completion of first terminal switching, the 3rd TC determines the configuration information and the 3rd TC of the first TC When configuration information is identical, the 3rd TC is directly set up using the first codec rate with the 2nd TC to exempt to cascade encoding and decoding TFO connections.

Specifically, the receiver 1501 is used for the configuration information for receiving the first TC that the first TC is reported, with And receive the configuration information for the 3rd TC that the 3rd TC is reported.

It is preferred that, the receiver 1501 is used to receive the first TC's that the first TC is sent by signalling path Configuration information, and receive by signalling path the configuration information for the 3rd TC that the 3rd TC is sent.

When the first TC and the 3rd TC belongs to different BSC management, the receiver 1501 is described specifically for receiving The configuration information for the first TC that the corresponding base station controller BSCs of first TC are sent.

Specifically, the emitter 1502 is used for before the first terminal switches, by the configuration of the 3rd TC Information is sent to the corresponding BSC of the first TC, is sent out the configuration information of the 3rd TC by the corresponding BSC of the first TC Give the first TC.

BSC provided in an embodiment of the present invention, before first terminal switches（Before switching described first is handled by the first TC The speech data of terminal, is handled the speech data of the first terminal by the 3rd TC after switching）, BSC to the first TC send the 3rd TC configuration information, to allow the first TC to know the 3rd TC's in advance when the first terminal is switched over Configuration information, if the first TC configuration information and the 3rd TC configuration information are identical, the first TC can use first Codec rate maintains TFO to be connected with the 2nd TC；After first terminal switches, BSC sends matching somebody with somebody for the first TC to the 3rd TC Confidence ceases, to cause the 3rd TC to know the configuration information of the first TC in advance, if the configuration information of the first TC Identical with the 3rd TC configuration information, then the 3rd TC directly can be set up using first codec rate and the 2nd TC TFO connections.Compared with prior art, when first terminal needs to switch over, the first TC need not carry out TFO and compile solution before the handover Code-rate adjusting, after handover the 3rd TC need not carry out TFO codec rate adjustment, can directly use the first codec rate TFO is set up with the 2nd TC to be connected（First codec rate is higher than initial rate）, eliminate by initial rate（Compared with low rate）To First codec rate（Higher rate）Transient process, higher codec rate is kept during TFO link re-establishments, can Ensure higher transmission of speech information amount, improve the definition of voice call；On the other hand, after first terminal completes switching, 3rd TC can know the 2nd TC configuration information in advance, so the 3rd TC and the 2nd TC by removing trau frame without being realized The interaction of frame is configured, the loss of voice messaging can be avoided, it is ensured that voice call quality.

Embodiment 13

The embodiments of the invention provide a kind of BSC, the embodiment of the method shown in above-mentioned Fig. 2 can be realized, and realize figure 1st, in Fig. 3-Fig. 6 the corresponding BSC sides of the first TC method.

As shown in figure 16, the BSC includes：

Receiver 1601, for obtaining the first codec TC configuration information and the 3rd TC configuration information, wherein, institute The speech data that the first TC is used to handle the first terminal before first terminal switches is stated, the 3rd TC is used in institute State first terminal and switch and post-process the speech data of the first terminal；

Emitter 1602, for the configuration information of the 3rd TC to be sent into the first TC, to cause described Before one terminal switches, the first TC determines that the configuration information of the first TC is identical with the configuration information of the 3rd TC When, the first TC and the 2nd TC maintains to exempt to cascade encoding and decoding TFO connections using the first codec rate；Wherein, described first Codec rate is that the first TC and the 2nd TC sets up the codec rate for exempting to determine to use after cascade encoding and decoding TFO connections, 2nd TC is used for the speech data for handling second terminal, and the second terminal is to maintain voice call with the first terminal The distant terminal of business；

The emitter 1602 is additionally operable to the configuration information of the first TC being sent to the 3rd TC, to cause in institute State after the completion of first terminal switching, the 3rd TC determines the configuration information of the first TC and the configuration information of the 3rd TC When identical, the 3rd TC is directly set up using first codec rate with the 2nd TC exempts from cascade encoding and decoding TFO companies Connect.

The receiver 1601 is used for the configuration information for receiving the first TC that the first TC is reported, and receives institute State the configuration information for the 3rd TC that the 3rd TC is reported.

Specifically, the receiver 1601 is used to receive the first TC's that the first TC is sent by signalling path Configuration information, and receive by signalling path the configuration information for the 3rd TC that the 3rd TC is sent.

When the first TC and the 3rd TC belongs to different BSC management, the receiver 1601 is described specifically for receiving The configuration information for the 3rd TC that the corresponding base station BS C of 3rd TC are sent.

The emitter 1602 is specifically for after first terminal switching, the configuration information of the first TC is sent Give the 3rd TC corresponding BSC, be sent to the configuration information of the first TC by the corresponding BSC of the 3rd TC described 3rd TC.

Embodiment 14

The embodiments of the invention provide a kind of TC, the embodiment of the method shown in above-mentioned Fig. 3 can be realized, and realize Fig. 1- 2nd, the method that the first TC is performed in Fig. 4-Fig. 6.

As shown in figure 17, the TC includes：

Receiver 1701, the configuration information of the 3rd TC for receiving base station controller BSC transmission；

Processor 1702, for before first terminal switches, determining the 3rd TC's that the receiver 1701 is received Configuration information is identical with local TC configuration information, maintains to exempt from cascade encoding and decoding TFO using the first codec rate and the 2nd TC Connection；

Optionally, the BSC that the present embodiment is provided also includes：

Emitter 1703, for matching somebody with somebody confidence to the corresponding base station controller BSC transmissions of the 3rd TC local TC Breath, the 3rd TC is sent to by the corresponding BSC of the 3rd TC by the configuration information of the local TC, to cause described the Three TC determine the configuration information of the 3rd TC and the configuration information phase of the local TC after the first terminal switches Meanwhile, the 3rd TC directly exempts from cascade encoding and decoding TFO using first codec rate and the 2nd TC foundation and is connected.

TC provided in an embodiment of the present invention, before first terminal switches（Before switching described first is handled by the first TC The speech data of terminal, is handled the speech data of the first terminal by the 3rd TC after switching）, the first T（That is the present embodiment The TC of offer）C can know the configuration information of the 3rd TC in advance when the first terminal is switched over, if the first TC Configuration information and the 3rd TC configuration information it is identical, then the first TC can be using the first codec rate and the 2nd TC dimension Hold TFO connections.Compared with prior art, when first terminal needs to switch over, the first TC need not carry out TFO volumes before the handover Code-rate adjusting is solved, is eliminated by initial rate（Compared with low rate）To the first codec rate（Higher rate）Transient process, Higher codec rate is kept during TFO link re-establishments, higher transmission of speech information amount is ensure that, voice is improved and leads to The definition of words.

Embodiment 15

The embodiments of the invention provide a kind of TC, the embodiment of the method shown in above-mentioned Fig. 4 can be realized, and realize Fig. 1- 3rd, the method that the 3rd TC is performed in Fig. 5-6.

As shown in figure 18, institute TC includes：

Receiver 1801, the configuration information of the first TC for receiving base station controller BSC transmission；

Processor 1802, for after first terminal switches, determining the first TC configuration information and matching somebody with somebody for local TC Confidence manner of breathing is same, and the local TC directly exempts from cascade encoding and decoding TFO using the first codec rate and the 2nd TC foundation and connected Connect；

The TC that the present embodiment is provided also includes：

Emitter 1803, sends the configuration information of the local TC to the corresponding BSC of the first TC for TC, passes through institute State the corresponding BSC of the first TC and the configuration information of the local TC is sent to the first TC, to cause the first TC in institute State before first terminal switches, when determining that the configuration information of the first TC is identical with the configuration information of the local TC, institute State the first TC maintains TFO to be connected with the 2nd TC using first codec rate.

TC provided in an embodiment of the present invention, after first terminal switches（Before switching described first is handled by the first TC The speech data of terminal, by the 3rd TC after switching（The TC that i.e. the present embodiment is provided）Handle the speech data of the first terminal）, 3rd TC can know the configuration information of the first TC in advance, if the configuration information and the 3rd TC of the first TC Configuration information is identical, then the 3rd TC directly can set up TFO with the 2nd TC using first codec rate and be connected.With Prior art is compared, when first terminal needs to switch over, and the 3rd TC need not carry out TFO encoding and decoding after first terminal switching Speed adjust, directly can set up TFO with the 2nd TC using the first codec rate and be connected（First codec rate is higher than initial Speed）, eliminate by initial rate（Compared with low rate）To the first codec rate（Higher rate）Transient process, in TFO chains Higher codec rate is kept in the process of reconstruction of road, higher transmission of speech information amount is ensure that, the clear of voice call is improved Clear degree；On the other hand, after first terminal completes switching, the 3rd TC can know the 2nd TC configuration information in advance, so the Interactions of three TC and the 2nd TC without realizing configuration frame by removing trau frame, can avoid the loss of voice messaging, it is ensured that Voice call quality.

Embodiment 16

The embodiments of the invention provide a kind of TC, the embodiment of the method shown in above-mentioned Fig. 5 can be realized, and realize Fig. 1- 4th, the method that the 2nd TC is performed in Fig. 6.

As shown in figure 19, the TC includes：

Receiver 1901, for before first terminal switches, receiving the instruction message that the first TC is sent, refers to according to this Show that message is exempted from cascade encoding and decoding TFO using the first codec rate and the first TC maintenances and is connected, first codec rate is First TC and local TC, which is set up, to exempt to cascade the codec rate for determining to use after encoding and decoding TFO connections；

The receiver 1901 is additionally operable to after first terminal switches, and the instruction for receiving the 3rd TC transmissions disappears Breath, directly sets up TFO with the 3rd TC using first codec rate according to the instruction message and is connected；

TC provided in an embodiment of the present invention, before first terminal switches, the 2nd TC（The TC that i.e. the present embodiment is provided） The instruction message that can be sent according to the first TC maintains TFO to be connected using the first codec rate with the first TC；In first terminal Send after switching, the instruction message that the 2nd TC can be sent according to the 3rd TC directly uses the first encoding and decoding bit rate and institute State the 3rd TC and set up TFO connections.Compared with prior art, when first terminal needs to switch over, before the handover the 2nd TC without TFO codec rate adjustment need to be carried out, the 2nd TC can be adopted directly without TFO codec rate adjustment is carried out after handover TFO is set up with the first codec rate with the 3rd TC to be connected（First codec rate is higher than initial rate）, eliminate by initial Speed（Compared with low rate）To the first codec rate（Higher rate）Transient process, kept during TFO link re-establishments compared with High codec rate, ensure that higher transmission of speech information amount, improve the definition of voice call.

Based on the application scenarios described in embodiment 12 to embodiment 16, the embodiment of the present invention additionally provides a kind of voice Communication system, at least including embodiment 12 provide BSC, embodiment 13 provide BSC, embodiment 14 provide TC, The TC that the TC and embodiment 16 that embodiment 15 is provided are provided.

Using the voice communication system, before first terminal switches（Before switching described first is handled by the first TC The speech data of terminal, is handled the speech data of the first terminal by the 3rd TC after switching）, BSC to the first TC send the 3rd TC configuration information, to allow the first TC to know the 3rd TC's in advance when the first terminal is switched over Configuration information, if the first TC configuration information and the 3rd TC configuration information are identical, the first TC can use first Codec rate maintains TFO to be connected with the 2nd TC；After first terminal switches, BSC sends matching somebody with somebody for the first TC to the 3rd TC Confidence ceases, to cause the 3rd TC to know the configuration information of the first TC in advance, if the configuration information of the first TC Identical with the 3rd TC configuration information, then the 3rd TC directly can be set up using first codec rate and the 2nd TC TFO connections.Compared with prior art, when first terminal needs to switch over, the first TC need not carry out TFO and compile solution before the handover Code-rate adjusting, after handover the 3rd TC need not carry out TFO codec rate adjustment, can directly use the first codec rate TFO is set up with the 2nd TC to be connected（First codec rate is higher than initial rate）, eliminate by initial rate（Compared with low rate）To First codec rate（Higher rate）Transient process, higher codec rate is kept during TFO link re-establishments, can Ensure higher transmission of speech information amount, improve the definition of voice call；On the other hand, after first terminal completes switching, 3rd TC can know the 2nd TC configuration information in advance, so the 3rd TC and the 2nd TC by removing trau frame without being realized The interaction of frame is configured, the loss of voice messaging can be avoided, it is ensured that voice call quality.

Through the above description of the embodiments, it is apparent to those skilled in the art that the present invention can be borrowed Software is helped to add the mode of required common hardware to realize, naturally it is also possible to which the former is more preferably by hardware, but in many cases Embodiment.Understood based on such, the portion that technical scheme substantially contributes to prior art in other words Dividing can be embodied in the form of software product, and the computer software product is stored in the storage medium that can be read, and such as be counted The floppy disk of calculation machine, hard disk or CD etc., including some instructions are to cause a computer equipment（Can be personal computer, Server, or the network equipment etc.）Perform the method described in each embodiment of the invention.

The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited thereto, any Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all be contained Cover within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.

Claims

1. a kind of voice communication method, it is characterised in that including：

The first TC configuration information and the 3rd TC configuration information are obtained, wherein, the first TC is used to occur in first terminal Switch the speech data of first terminal described in pre-treatment, the 3rd TC, which is used to switch in the first terminal, post-processes institute State the speech data of first terminal；

The configuration information of 3rd TC is sent to the first TC, to cause before the first terminal switches, institute When stating the first TC and determining that the configuration information of the first TC is identical with the configuration information of the 3rd TC, the first TC and second TC maintains to exempt to cascade encoding and decoding TFO connections using the first codec rate；Wherein, first codec rate is described first TC and the 2nd TC, which are set up, exempts to cascade the codec rate for determining to use after encoding and decoding TFO connections, and the 2nd TC is used for processing the The speech data of two terminals, the second terminal is the distant terminal that voice calling service is maintained with the first terminal；

The configuration information of first TC is sent to the 3rd TC, to cause after the completion of the first terminal switches, institute When stating the 3rd TC and determining that the configuration information of the first TC is identical with the configuration information of the 3rd TC, the 3rd TC is directly adopted Exempt from cascade encoding and decoding TFO with the first codec rate and the 2nd TC foundation to be connected.

2. according to the method described in claim 1, it is characterised in that the first codec TC of acquisition configuration information bag Include：

3. according to claim 1 or claim 2, it is characterised in that the configuration information by the 3rd TC is sent To the first TC, including：

Before the first terminal switches, the configuration information of the 3rd TC is sent to the corresponding BSC of the first TC, The configuration information of 3rd TC is sent to by the first TC by the corresponding BSC of the first TC.

4. according to the method described in claim 1, it is characterised in that the 3rd TC of acquisition configuration information, including：

5. according to the method described in claim 1, it is characterised in that the configuration information by the first TC is sent to described 3rd TC, including：

After first terminal switching, the configuration information of the first TC is sent to the corresponding BSC of the 3rd TC, passed through The configuration information of first TC is sent to the 3rd TC by the corresponding BSC of the 3rd TC.

6. a kind of voice communication method, it is characterised in that including：

Before first terminal switching, the first TC determines the configuration information of the 3rd TC and the configuration information of the first TC Identical, the first TC maintains to exempt to cascade encoding and decoding TFO connections using the first codec rate and the 2nd TC；

Wherein, the first TC is used to handle the speech data of the first terminal before first terminal switches, and described the Three TC are used to switch in the first terminal to post-process the speech data of the first terminal；First codec rate It is that the first TC and the 2nd TC sets up the codec rate for exempting to determine to use after cascade encoding and decoding TFO connections；2nd TC Speech data for handling second terminal, the second terminal is that the opposite end of voice calling service is maintained with the first terminal Terminal；

First TC sends the configuration information of the first TC to the corresponding base station controller BSCs of the 3rd TC, passes through institute State the corresponding BSC of the 3rd TC and the configuration information of the first TC is sent to the 3rd TC, to cause the 3rd TC in institute State after first terminal switches, when determining that the configuration information of the 3rd TC is identical with the configuration information of the first TC, institute State the 3rd TC directly use first codec rates and the 2nd TC foundation is exempted from cascade encoding and decoding TFO and is connected.

7. a kind of voice communication method, it is characterised in that including：

After first terminal switching, the 3rd TC determines the configuration information of the first TC and the configuration information of the 3rd TC Identical, the 3rd TC directly exempts from cascade encoding and decoding TFO using the first codec rate and the 2nd TC foundation and is connected；

3rd TC sends the configuration information of the 3rd TC to the corresponding BSC of the first TC, by the described first TC pairs The configuration information of 3rd TC is sent to the first TC by the BSC answered, to cause the first TC in the first terminal Before switching, when determining that the configuration information of the first TC is identical with the configuration information of the 3rd TC, then the first TC TFO is maintained to be connected using first codec rate with the 2nd TC.

8. a kind of base station controller BSC, it is characterised in that including：

Acquisition module, for obtaining TC configuration information and the 3rd TC configuration information, wherein, the first TC is used in first terminal Switch the speech data of first terminal described in pre-treatment, and the 3rd TC is used to locate after the first terminal switches Manage the speech data of the first terminal；

Sending module, the configuration information of the 3rd TC for the acquisition module to be obtained is sent to the first TC, to cause Before the first terminal switches, the first TC determines the configuration of the configuration information and the 3rd TC of the first TC When information is identical, the first TC and the 2nd TC maintains to exempt to cascade encoding and decoding TFO connections using the first codec rate；Wherein, First codec rate is that the first TC and the 2nd TC sets up the volume solution for exempting to determine to use after cascade encoding and decoding TFO connections Bit rate, the 2nd TC is used for the speech data for handling second terminal, and the second terminal is maintained with the first terminal The distant terminal of voice calling service；

The sending module is additionally operable to send the configuration information of the TC to the 3rd TC, to cause in the first terminal After the completion of switching, when the 3rd TC determines that the configuration information of the first TC is identical with the configuration information of the 3rd TC, institute State the 3rd TC directly the first codec rates of use and the 2nd TC foundation is exempted from cascade encoding and decoding TFO and is connected.

9. BSC according to claim 8, it is characterised in that the acquisition module is specifically for TC pairs of reception the described first The configuration information for the first TC that the base station controller BSC answered is sent.

10. the BSC according to claim 8 or 9, it is characterised in that the sending module is specifically for described first Before terminal switches, the configuration information of the 3rd TC is sent to the corresponding BSC of the first TC, passes through the first TC The configuration information of 3rd TC is sent to the first TC by corresponding BSC.

11. BSC according to claim 8, it is characterised in that the acquisition module is specifically for TC pairs of reception the described 3rd The configuration information for the 3rd TC that the base station BS C answered is sent.

12. BSC according to claim 8, it is characterised in that the sending module in the first terminal specifically for cutting After changing, the configuration information of the first TC is sent to the corresponding BSC of the 3rd TC, passes through the corresponding BSC of the 3rd TC The configuration information of first TC is sent to the 3rd TC.

13. a kind of codec TC, it is characterised in that including：

Processing module, the configuration information for before first terminal switches, determining the 3rd TC that the receiving module is received It is identical with local TC configuration information, maintain to exempt to cascade encoding and decoding TFO connections using the first codec rate and the 2nd TC；

Wherein, the local TC is used to handle the speech data of the first terminal before first terminal switches, and described the Three TC are used to switch in the first terminal to post-process the speech data of the first terminal；First codec rate It is that the local TC and the 2nd TC sets up the codec rate for exempting to determine to use after cascade encoding and decoding TFO connections；2nd TC Speech data for handling second terminal, the second terminal is that the opposite end of voice calling service is maintained with the first terminal Terminal；

Sending module, the configuration information for sending the local TC to the corresponding base station controller BSCs of the 3rd TC, passes through The configuration information of the local TC is sent to the 3rd TC by the corresponding BSC of the 3rd TC, to cause the 3rd TC to exist After the first terminal switches, when determining that the configuration information of the 3rd TC is identical with the configuration information of the local TC, Then the 3rd TC directly uses first codec rate and the 2nd TC foundation to exempt from cascade encoding and decoding TFO and is connected.

14. a kind of codec TC, it is characterised in that including：

Processing module, for after first terminal switches, determining the configuration information of the first TC and local TC configuration information Identical, the local TC directly exempts from cascade encoding and decoding TFO using the first codec rate and the 2nd TC foundation and is connected；

Wherein, the first TC is used for the speech data that the first terminal is handled before first terminal switches, described Ground TC is used to switch in the first terminal to post-process the speech data of the first terminal；First codec rate It is that the first TC and the 2nd TC sets up the codec rate for exempting to determine to use after cascade encoding and decoding TFO connections；2nd TC Speech data for handling second terminal, the second terminal is that the opposite end of voice calling service is maintained with the first terminal Terminal；

Sending module, sends the configuration information of the local TC to the corresponding BSC of the first TC for TC, passes through described first The configuration information of the local TC is sent to the first TC by the corresponding BSC of TC, to cause the first TC described first Before terminal switches, when determining that the configuration information of the first TC is identical with the configuration information of the local TC, described first TC maintains TFO to be connected with the 2nd TC using first codec rate.

15. a kind of voice communication system, it is characterised in that at least including the BSC any one of claim 8-12, right It is required that the TC described in TC, claim 14 described in 13.