WO2014205821A1

WO2014205821A1 - Method, apparatus and system for voice communication

Info

Publication number: WO2014205821A1
Application number: PCT/CN2013/078470
Authority: WO
Inventors: 罗萌; 严凯
Original assignee: 华为技术有限公司
Priority date: 2013-06-28
Filing date: 2013-06-28
Publication date: 2014-12-31
Also published as: CN103650627B; CN103650627A

Abstract

Disclosed are a method and an apparatus for voice communication. The present invention relates to field of the communications. The method provided in the present invention comprises: obtaining configuration information of a first transcoder (TC) and configuration information of a third TC; sending the configuration of the third TC to the first TC, so that before a first terminal is switched and when the first TC determines that the configuration information of the first TC is the same as that of the third TC, the first TC and a second TC maintaining a tandem free operation (TFO) connection by using a first coding and decoding speed rate; and sending the configuration information of the first transcoder (TC) to the third TC, so that after switchover of the first terminal is completed and when the third TC determines that the configuration information of the first TC is the same as that of the third TC, the third TC establishing a tandem free operation (TFO) connection with the second TC by directly using the first coding and decoding speed rate. The present invention is applicable to the field of communications, and is used for implementing voice communication.

Description

Voice communication method, device and system

The present invention relates to the field of communications, and in particular, to a voice communication method, apparatus, and system.

Background technique

With the continuous development of wireless communication technologies, people have higher and higher requirements for voice quality during the call. Currently, most Global System of Mobile communication (GSM) systems and core networks are networked using Time Division Multiplex (TMM). The entire communication path of the communication system requires two encoding and decoding operations on the voice data, that is, cascading codec: one codec is completed by the mobile terminal side, and the other codec is codec by the network side (Transcoder, TC) )carry out. However, after such two speech encoding and decoding, the transmission delay of the voice data is increased, and the accuracy of the voice data is also impaired. Therefore, the 3GPP standard protocol introduces a Tandem Free Operation (TFO) mode, which eliminates one codec on the network side, so that only the voice data is coded and decoded once in the entire communication path, so that 釆可以Loss of voice data caused by cascading codec.

However, using TFO mode does not improve the transmission quality of voice data in all call scenarios. For example, when a user equipment (UE) in a call state switches between cells, a frequent handover of the communication link is caused, and the TFO link needs to be disconnected and reestablished. When the TFO link is re-established, in order to ensure that the TFO link remains connected, it is necessary to reduce the codec rate before and after the handover to check whether the configuration of the TCs at both ends of the reconstructed TFO link meets the TFO establishment conditions (see 3GPP 28.062); At the same time, after the UE completes the inter-cell handover, the corresponding TC (which can be recorded as the TC after handover) needs to be configured with the opposite TC to obtain configuration information of each other to determine the configuration information after the handover. Whether the configuration of the TC and the peer TC is compatible, and the reconstruction of the TFO link can be ensured in the case of mutual compatibility. Currently, the TC and the peer TC interact with each other after the switch. The process is: removing the TFO frame from the information frame of the TC and the peer TC, and replacing it with the configuration frame, so as to implement the interaction between the TC and the peer TC configuration frame after the handover; , so it will lead to the loss of voice information.

During the reconstruction of the TFO link, since the codec rate is reduced before and after the UE handover, the amount of voice information transmission during this time period is reduced, resulting in poor clarity of the voice call; The configuration of the TC and the peer TC to configure the frame will result in loss of voice information and cause serious damage to the voice call quality. Summary of the invention

The embodiment of the present invention provides a voice communication method, apparatus, and system, which can solve the problem that in the prior art, when a UE in a call state performs handover between cells, in the process of performing TFO link reconstruction, the codec rate needs to be reduced. As a result, the clarity of the voice call is poor, and the voice information is lost due to the TC and the peer TC interacting with the configuration frame, which causes a large damage to the voice call quality.

In order to achieve the above object, embodiments of the present invention use the following technical solutions:

In a first aspect, an embodiment of the present invention provides a voice communication method, where the method includes: acquiring configuration information of a first codec TC and configuration information of a third TC, where the first TC is used in the first Processing, by the terminal, the voice data of the first terminal before the handover occurs, where the third TC is configured to process the voice data of the first terminal after the handover of the first terminal occurs;

Sending the configuration information of the third TC to the first TC, so that the first TC determines configuration information of the first TC and the third TC before the handover occurs in the first terminal. When the configuration information is the same, the first TC and the second TC are maintained with the first codec rate to maintain the free-becoded TFO connection; wherein the first codec rate is established by the first TC and the second TC Determining the codec rate after the TFO connection is determined by the stepless codec, and the second TC is used to process the second The voice data of the terminal, where the second terminal is a peer terminal that maintains a voice call service with the first terminal;

Transmitting configuration information of the first codec TC to the third TC, so that after the first terminal handover is completed, the third TC determines configuration information of the first TC and the first When the configuration information of the three TCs is the same, the third TC directly establishes a step-free coded TFO connection with the second TC by using the first codec rate.

With reference to the first aspect, in a first possible implementation manner, the acquiring the configuration information of the first codec TC and the configuration information of the third TC includes:

Receiving configuration information of the first TC reported by the first TC;

Receiving configuration information of the third TC reported by the third TC.

With reference to the first possible implementation manner of the first aspect, in the second possible implementation manner, the receiving, by the receiving, the configuration information of the first TC on the first TC includes:

The configuration information of the first TC sent by the first TC is received by the signaling channel, and the configuration information of the third TC sent by the third TC is received by using a signaling channel.

With reference to the first aspect, in a third possible implementation, the obtaining the configuration information of the first codec TC and the configuration information of the third TC includes:

And receiving configuration information of the first TC sent by the base station controller BSC corresponding to the first TC.

In combination with the first aspect, or the first possible implementation of the first aspect, or the second possible implementation of the first aspect, or the third possible implementation of the first aspect, in a fourth possible In an implementation manner, the sending, by the first terminal, the configuration information of the third TC to the first TC, before the switching of the first terminal, includes:

Before the switching of the first terminal occurs, the configuration information of the third TC is sent to the BSC corresponding to the first TC, and the configuration information of the third TC is sent by the BSC corresponding to the first TC. Send to the first TC. In a second aspect, an embodiment of the present invention provides a voice communication method, including:

Acquiring the configuration information of the first codec TC and the configuration information of the third TC, where the first TC is used to process the voice data of the first terminal before the handover occurs in the first terminal, where the third TC is used Processing voice data of the first terminal after the first terminal is switched;

Sending the configuration information of the third TC to the first TC, so that the first TC determines configuration information of the first TC and the third TC before the handover occurs in the first terminal. When the configuration information is the same, the first TC and the second TC are maintained with the first codec rate to maintain the free-becoded TFO connection; wherein the first codec rate is established by the first TC and the second TC The second TC is used to process the voice data of the second terminal, and the second terminal is to maintain the voice call service with the first terminal. Terminal

Transmitting the configuration information of the first TC to the third TC, so that after the first terminal handover is completed, the third TC determines configuration information of the first TC and the third TC When the configuration information is the same, the third TC directly uses the first codec rate to establish a phase-free coded TFO connection with the second TC.

With reference to the second aspect, in a first possible implementation, the obtaining the configuration information of the first codec TC, the configuration information of the second TC, and the configuration information of the third TC includes:

Receiving configuration information of the first TC reported by the first TC;

Receiving configuration information of the third TC reported by the third TC.

With reference to the first possible implementation manner of the second aspect, in the second possible implementation, the acquiring the configuration information of the first codec TC and the configuration information of the third TC includes:

Receiving configuration information of the first TC sent by the first TC by using a signaling channel; Receiving, by the signaling channel, configuration information of the third TC sent by the third TC.

With reference to the second aspect, in a third possible implementation manner, the acquiring the configuration information of the first codec TC and the configuration information of the third TC includes:

And receiving configuration information of the third TC sent by the base station BSC corresponding to the third TC. With the second aspect or the third possible implementation manner of the second aspect, in a fourth possible implementation manner, after the first terminal is switched, the configuration information of the first TC is sent to the The third TC, including:

After the first terminal is switched, the configuration information of the first TC is sent to the BSC corresponding to the third TC, and the configuration information of the first TC is sent to the BSC through the BSC corresponding to the third TC. Said third TC. In a third aspect, an embodiment of the present invention provides a voice communication method, including:

The first TC receives the configuration information of the third TC sent by the base station controller BSC;

Before the first terminal switches, the first TC determines that the configuration information of the third TC is the same as the configuration information of the first TC, and the first TC uses the first codec rate and the second TC to maintain the Cascading codec TFO connection;

The first TC is configured to process the voice data of the first terminal before the handover occurs in the first terminal, and the third TC is configured to process the voice of the first terminal after the handover occurs in the first terminal. Data; the first codec rate is determined by the first TC and the second TC to establish a codec decoding TFO connection, and the second TC is used to process voice data of the second terminal. The second terminal is a peer terminal that maintains a voice call service with the first terminal.

With reference to the third aspect, in a first possible implementation, the method further includes: sending, by the first TC, the configuration information of the first TC to a base station controller BSC corresponding to the third TC, The BSC corresponding to the third TC sends the configuration information of the first TC to The third TC, so that after the third TC determines that the configuration information of the third TC and the configuration information of the first TC are the same after the first terminal is switched, the third TC is directly And establishing, by the first codec rate, a stepless coded TFO connection with the second TC. In a fourth aspect, an embodiment of the present invention provides a voice communication method, including:

The third TC receives the configuration information of the first TC sent by the base station controller BSC;

After the first terminal is switched, the third TC determines that the configuration information of the first TC is the same as the configuration information of the third TC, and the third TC directly uses the first codec rate and the second The TC establishes a free-of-order decoding and decoding TFO connection;

With reference to the fourth aspect, in a first possible implementation, the method further includes: sending, by the third TC, configuration information of the third TC to a BSC corresponding to the first TC, by using the first The BSC corresponding to the TC sends the configuration information of the third TC to the first TC, so that the first TC determines configuration information of the first TC and the first TC before the handover occurs in the first terminal. When the configuration information of the third TC is the same, the first TC and the second TC are connected by the first codec rate to maintain the TFO. In a fifth aspect, an embodiment of the present invention provides a voice communication method, including:

Before the handover occurs, the second TC receives the indication message sent by the first TC, and uses the first codec rate to maintain the TFO connection with the first TC according to the indication message. The first codec rate is determined by the first TC and the second TC to establish a freeze coded TFO connection after determining a codec rate;

After the first terminal is switched, the second TC receives the indication message sent by the third TC, and directly establishes a TFO connection with the third TC by using the first codec rate according to the indication message;

The first TC is configured to process the voice data of the first terminal before the handover occurs in the first terminal, and the third TC is configured to process the voice of the first terminal after the handover occurs in the first terminal. Data; the first codec rate is determined by the first TC and the second TC to establish a freeze coded TFO connection, and the second TC is used to process the voice data of the second terminal. The second terminal is a peer terminal that maintains a voice call service with the first terminal. In a sixth aspect, an embodiment of the present invention provides a voice communication device, including:

An acquiring module, configured to acquire configuration information of the first codec TC and configuration information of the third TC, where the first TC is configured to process voice data of the first terminal before the first terminal generates a handover, where The third TC is configured to process voice data of the first terminal after the first terminal is switched;

a sending module, configured to send configuration information of the third TC acquired by the acquiring module to the first TC, so that the first TC determines the first TC before the switching occurs in the first terminal When the configuration information is the same as the configuration information of the third TC, the first TC and the second TC maintain a level-free coded TFO connection with the first codec rate; where the first codec rate is Determining, by the first TC and the second TC, the codec rate of the TFO connection, the second TC is used to process the voice data of the second terminal, and the second terminal is A terminal maintains a peer terminal of the voice call service;

The sending module is further configured to send configuration information of the first codec TC to the first a third TC, so that after the third TC determines that the configuration information of the first TC and the configuration information of the third TC are the same after the first terminal is switched, the third TC directly uses the third TC. A codec rate is established with the second TC to establish a freeze coded TFO connection.

With reference to the sixth aspect, in a first possible implementation, the acquiring module includes: a receiving unit, configured to receive configuration information of the first TC reported by the first TC; Receiving configuration information of the third TC reported by the third TC. With reference to the first possible implementation manner of the sixth aspect, in a second possible implementation manner, the receiving unit is configured to receive, by using a signaling channel, configuration information of the first TC that is sent by the first TC, And receiving configuration information of the third TC sent by the third TC by using a signaling channel.

With reference to the sixth aspect, in a third possible implementation, the acquiring module is specifically configured to receive configuration information of the first TC sent by the base station controller BSC corresponding to the first TC.

With reference to the sixth aspect, or the first possible implementation of the sixth aspect, or the second possible implementation of the sixth aspect, or the third possible implementation of the sixth aspect, in a fourth possible In an implementation manner, the sending module is specifically configured to send the configuration information of the third TC to the BSC corresponding to the first TC, and the BSC corresponding to the first TC, before the switching of the first terminal occurs. Sending configuration information of the third TC to the first TC. A seventh aspect of the present invention provides a voice communication apparatus, including:

a sending module, configured to send configuration information of the third TC to the first TC, so that the first TC determines configuration information and location of the first TC before the first terminal generates a handover When the configuration information of the third TC is the same, the first TC and the second TC are maintained with the first codec rate to maintain the free-becoded TFO connection; wherein, the first codec rate is the first TC And determining, by the second TC, the codec rate of the TCE, the second TC is used to process the voice data of the second terminal, and the second terminal is to maintain the voice with the first terminal. The opposite terminal of the call service;

The sending module is further configured to send the configuration information of the first TC to the third TC, so that after the first terminal handover is completed, the third TC determines configuration information of the first TC. And when the configuration information of the third TC is the same, the third TC directly connects to the second TC to establish a level-free coded TFO connection by using the first codec rate.

With reference to the seventh aspect, in a first possible implementation, the acquiring module includes: a receiving unit, configured to receive configuration information of the first TC reported by the first TC; Receiving configuration information of the third TC reported by the third TC. With reference to the first possible implementation manner of the seventh aspect, in a second possible implementation manner, the receiving unit is configured to receive, by using a signaling channel, configuration information of the first TC sent by the first TC And receiving, by the signaling channel, configuration information of the third TC sent by the third TC.

With reference to the seventh aspect, in a third possible implementation, the acquiring module is specifically configured to receive configuration information of the third TC sent by the base station BSC corresponding to the third TC.

With reference to the seventh aspect, or the third possible implementation manner of the seventh aspect, in a fourth possible implementation, the sending module is specifically configured to: after the first terminal is switched, the first TC The configuration information is sent to the BSC corresponding to the third TC, and the configuration information of the first TC is sent to the third TC by the BSC corresponding to the third TC. a receiving module, configured to receive configuration information of a third TC sent by the base station controller BSC, and a processing module, configured to determine configuration information of the third TC and the local TC received by the receiving module before the first terminal switches The configuration information is the same, and the first codec rate and the second TC are used to maintain the levelless codec TFO connection;

The local TC is configured to process the voice data of the first terminal before the handover occurs on the first terminal, and the third TC is configured to process the voice data of the first terminal after the handover of the first terminal occurs. The first codec rate is a codec rate determined by the local TC and the second TC to establish a time-delayed codec TFO connection; the second TC is used to process voice data of the second terminal, The second terminal is a peer terminal that maintains a voice call service with the first terminal.

In combination with the eighth aspect, in the first possible implementation manner, the method further includes:

a sending module, configured to send configuration information of the local TC to a base station controller BSC corresponding to the third TC, and send configuration information of the local TC to the third TC by using a BSC corresponding to the third TC When the third TC determines that the configuration information of the third TC and the configuration information of the local TC are the same after the third TC is switched, the third TC directly uses the first The codec rate establishes a level-free coded TFO connection with the second TC. A ninth aspect, the embodiment of the present invention provides a voice communication device, including:

a receiving module, configured to receive configuration information of the first TC sent by the base station controller BSC, and a processing module, configured to determine configuration information of the first TC and local after the first terminal is switched

The configuration information of the TC is the same, and the local TC directly establishes a stepless coded TFO connection with the second TC by using the first codec rate;

The first TC is configured to process the voice data of the first terminal before the handover occurs in the first terminal, where the local TC is configured to process the voice data of the first terminal after the handover occurs in the first terminal. The first codec rate is that the first TC and the second TC establish a freeze codec TFO After the connection, the codec rate is determined; the second TC is used to process the voice data of the second terminal, and the second terminal is the peer terminal that maintains the voice call service with the first terminal.

With reference to the ninth aspect, in a first possible implementation, the device further includes: a sending module, configured to send, by the TC, configuration information of the local TC to a BSC corresponding to the first TC, by using the first The BSC corresponding to the TC sends the configuration information of the local TC to the first TC, so that the first TC determines configuration information of the first TC and the local before the first terminal generates a handover. When the configuration information of the TC is the same, the first TC and the second TC are connected by the first codec rate to maintain the TFO. The tenth aspect of the present invention provides a voice communication apparatus, including:

a receiving module, configured to receive an indication message sent by the first TC, and use the first codec rate to maintain a level-free coded TFO connection with the first TC according to the indication message, where the first The codec rate is determined by the first TC and the local TC to establish a codec rate after the TIF connection is established.

The receiving module is further configured to: after receiving the handover of the first terminal, receive the indication message sent by the third TC, and directly establish the first codec rate and the third TC according to the indication message.

TFO connection;

The first TC is configured to process the voice data of the first terminal before the handover occurs in the first terminal, and the third TC is configured to process the voice of the first terminal after the handover occurs in the first terminal. Data; the first codec rate is a codec rate determined by the first TC and the local TC to establish a level-free coded TFO connection, and the local TC is configured to process voice data of the second terminal, where The second terminal is a peer terminal that maintains a voice call service with the first terminal. In an eleventh aspect, an embodiment of the present invention provides a base station controller BSC, including: a receiver, configured to acquire configuration information of the first codec TC and configuration information of the third TC, where the first TC is configured to process voice data of the first terminal before the first terminal generates a handover, where The third TC is configured to process voice data of the first terminal after the first terminal is switched;

a transmitter, configured to send configuration information of a third TC acquired by the receiver to the first TC, so that the first TC determines a configuration of the first TC before the first terminal generates a handover When the information is the same as the configuration information of the third TC, the first TC and the second TC are maintained with a first codec rate to maintain a level-free coded TFO connection; wherein, the first codec rate is the Determining, by the first TC, the second TC and the second TC, the codec rate, the second TC is used to process the voice data of the second terminal, and the second terminal is the first terminal The terminal maintains the peer terminal of the voice call service;

The transmitter is further configured to send configuration information of the first codec TC to the third TC, so that after the first terminal handover is completed, the third TC determines the first TC When the configuration information of the third TC is the same as the configuration information of the third TC, the third TC directly connects to the second TC to establish a level-free coded TFO connection by using the first codec rate.

With reference to the eleventh aspect, in a first possible implementation, the receiver is configured to receive configuration information of the first TC on the first TC, and receive the third TC on the > 3⁄4 configuration information of the third TC.

With reference to the first possible implementation manner of the eleventh aspect, in a second possible implementation manner, the receiver is configured to receive, by using a signaling channel, configuration information of the first TC that is sent by the first TC, And receiving configuration information of the third TC sent by the third TC by using a signaling channel.

With reference to the eleventh aspect, in a third possible implementation, the receiver is specifically configured to receive configuration information of the first TC sent by the base station controller BSC corresponding to the first TC.

Combining the eleventh aspect or the third possible implementation of the eleventh aspect, in the fourth possibility In an implementation manner, the transmitter is specifically configured to send configuration information of the third TC to a BSC corresponding to the first TC, where the first TC corresponds to The BSC sends the configuration information of the third TC to the first TC. According to a twelfth aspect, the embodiment of the present invention provides a BSC, including:

a receiver, configured to acquire configuration information of the first codec TC and configuration information of the third TC, where the first TC is configured to process voice data of the first terminal before the first terminal generates a handover, where The third TC is configured to process voice data of the first terminal after the first terminal is switched;

a transmitter, configured to send configuration information of the third TC to the first TC, so that the first TC determines configuration information and location of the first TC before the handover occurs in the first terminal When the configuration information of the third TC is the same, the first TC and the second TC are maintained with the first codec rate to maintain the free-becoded TFO connection; wherein, the first codec rate is the first TC And determining, by the second TC, the codec rate of the TFO, the second TC is used to process the voice data of the second terminal, and the second terminal is configured to maintain the voice with the first terminal. The opposite terminal of the call service;

The transmitter is further configured to send the configuration information of the first TC to the third TC, so that after the first terminal handover is completed, the third TC determines configuration information of the first TC. And when the configuration information of the third TC is the same, the third TC directly connects to the second TC to establish a level-free coded TFO connection by using the first codec rate.

With reference to the twelfth aspect, in a first possible implementation, the receiver is configured to receive configuration information of the first TC reported by the first TC, and receive the report reported by the third TC Configuration information of the third TC.

In conjunction with the first possible implementation of the twelfth aspect, in a second possible implementation, The receiver is specifically configured to receive, by using a signaling channel, configuration information of the first TC that is sent by the first TC, and receive configuration information of the third TC that is sent by the third TC by using a signaling channel.

With reference to the twelfth aspect, in a third possible implementation, the receiver is specifically configured to receive configuration information of the third TC sent by the base station BSC corresponding to the third TC.

In conjunction with the twelfth aspect or the third possible implementation manner of the twelfth aspect, in a fourth possible implementation, the transmitter is specifically configured to: after the first terminal is switched, the first The configuration information of the TC is sent to the BSC corresponding to the third TC, and the configuration information of the first TC is sent to the third TC by the BSC corresponding to the third TC. In a thirteenth aspect, an embodiment of the present invention provides a codec TC, including:

a receiver, configured to receive configuration information of a third TC sent by the base station controller BSC, and configured to: determine, before the first terminal handover, the configuration information of the third TC received by the receiver, and the local TC The configuration information is the same, and the first codec rate and the second TC are used to maintain the freeband codec TFO connection;

With reference to the thirteenth aspect, in a first possible implementation, the TC further includes: a transmitter, configured to send configuration information of the local TC to a base station controller BSC corresponding to the third TC, The BSC corresponding to the third TC sends the configuration information of the local TC to the third TC, so that the third TC determines configuration information of the third TC after the first terminal is switched. When the configuration information of the local TC is the same, the third TC is directly Establishing a level-free coded TFO connection with the second TC using the first codec rate. According to a fourteenth aspect, an embodiment of the present invention provides a codec TC, including:

a receiver, configured to receive configuration information of a first TC sent by the base station controller BSC, and a processor, configured to determine, after the first terminal is switched, that the configuration information of the first TC is the same as the configuration information of the local TC, The local TC directly establishes a free-of-order decoding and decoding TFO connection with the second TC by using the first codec rate;

The first TC is configured to process the voice data of the first terminal before the handover occurs in the first terminal, where the local TC is configured to process the voice data of the first terminal after the handover occurs in the first terminal. The first codec rate is a codec rate determined by the first TC and the second TC to establish a time-delayed codec TFO connection; the second TC is used to process voice data of the second terminal, The second terminal is a peer terminal that maintains a voice call service with the first terminal.

With reference to the fourteenth aspect, in a first possible implementation, the TC further includes: a transmitter, configured to send, by the TC, configuration information of the local TC to a BSC corresponding to the first TC, by using the foregoing The BCC corresponding to the TC sends the configuration information of the local TC to the first TC, so that the first TC determines configuration information of the first TC and the When the configuration information of the local TC is the same, the first TC and the second TC maintain the TFO connection by using the first codec rate. According to a fifteenth aspect, an embodiment of the present invention provides a codec TC, including:

a receiver, configured to receive an indication message sent by the first TC, and use the first codec rate to maintain a level-free coded TFO connection with the first TC according to the indication message, where the first The codec rate is determined by the first TC and the local TC to establish a codec rate after the TIF connection is established. The receiver is further configured to: after receiving the handover of the first terminal, receive an indication message sent by the third TC, and directly establish a TFO connection with the third TC by using the first codec rate according to the indication message;

The first TC is configured to process the voice data of the first terminal before the handover occurs in the first terminal, and the third TC is configured to process the voice of the first terminal after the handover occurs in the first terminal. Data; the first codec rate is a codec rate determined by the first TC and the local TC to establish a level-free coded TFO connection, and the local TC is configured to process voice data of the second terminal, where The second terminal is a peer terminal that maintains a voice call service with the first terminal. In a sixteenth aspect, the embodiment of the present invention further provides a voice communication system, including at least the BSC provided in the eleventh aspect, the BSC provided in the twelfth aspect, the TC provided in the thirteenth aspect, and the fourteenth aspect. TC, and the TC provided in the fifteenth aspect. The voice communication method, device, and system provided by the embodiment of the present invention, before the first terminal is switched (the voice data of the first terminal is processed by the first TC before the handover, and the first terminal is processed by the third TC after the handover And the BSC sends the configuration information of the third TC to the first TC, so that the first TC may obtain the configuration information of the third TC in advance when the first terminal performs the handover, if the first TC The configuration information of the third TC is the same as that of the third TC, and the first TC may maintain a TFO connection with the second TC by using the first codec rate; after the first terminal is switched, the BSC sends the first to the third TC. The configuration information of the TC, so that the third TC knows the configuration information of the first TC in advance. If the configuration information of the first TC and the configuration information of the third TC are the same, the third TC may directly A TFO connection is established with the second TC using the first codec rate. Compared with the prior art, when the first terminal needs to perform handover, the first TC does not need to perform TFO codec rate adjustment before the handover, and the third TC does not need to perform TFO codec rate adjustment after the handover. The first codec rate can be directly used to establish a TFO connection with the second TC (the first codec rate is higher than the initial rate), eliminating the initial rate (lower rate) to the first codec rate (higher rate). The transition process maintains a high codec rate during the TFO link reconstruction process, which ensures high voice information transmission and improves the clarity of the voice call. On the other hand, after the first terminal completes the handover, the third TC The configuration information of the second TC can be known in advance, so that the third TC and the second TC do not need to remove the TRAU frame to implement the configuration frame interaction, thereby avoiding loss of voice information and ensuring voice call quality.

DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only the present invention. For some embodiments, other drawings may be obtained from those of ordinary skill in the art without departing from the drawings.

1 is a flowchart of a voice communication method according to Embodiment 1 of the present invention;

2 is a flowchart of a voice communication method according to Embodiment 2 of the present invention;

3 is a flowchart of a voice communication method according to Embodiment 3 of the present invention;

4 is a flowchart of a voice communication method according to Embodiment 4 of the present invention;

FIG. 5 is a flowchart of a voice communication method according to Embodiment 5 of the present invention; FIG.

6 is a flowchart of a voice communication method according to Embodiment 6 of the present invention;

7 is a structural block diagram of a voice communication apparatus according to Embodiment 7 of the present invention;

8 is a structural block diagram of a voice communication apparatus according to Embodiment 7 of the present invention;

9 is a structural block diagram of a voice communication apparatus according to Embodiment 8 of the present invention;

10 is a structural block diagram of a voice communication apparatus according to Embodiment 8 of the present invention;

11 is a structural block diagram of a voice communication apparatus according to Embodiment 9 of the present invention;

12 is a structural block diagram of a voice communication apparatus according to Embodiment 9 of the present invention; FIG. 13 is a structural block diagram of a voice communication apparatus according to Embodiment 10 of the present invention; FIG.

14 is a structural block diagram of a voice communication apparatus according to Embodiment 11 of the present invention;

15 is a structural block diagram of a BSC according to Embodiment 12 of the present invention;

16 is a structural block diagram of a BSC according to Embodiment 13 of the present invention;

17 is a structural block diagram of a TC according to Embodiment 14 of the present invention;

18 is a structural block diagram of a TC according to Embodiment 15 of the present invention;

FIG. 19 is a structural block diagram of a TC according to Embodiment 16 of the present invention. detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention. Embodiment 1

The embodiment of the invention provides a voice communication method, and the method can be applied to a base station controller (BSC).

For the sake of understanding, the application scenario of the first terminal is briefly described. The voice communication is established between the first terminal and the second terminal. Before the first terminal switches, the voice data of the first terminal is compiled by the first TC. a decoding process, the second TC performs a codec process on the voice data of the second terminal, where the first TC and the second TC establish a TFO connection between the first terminal and the second terminal; The third TC performs codec processing on the voice data of the first terminal, the second TC performs codec processing on the voice data of the second terminal, and the second TC and the third TC switch in the first terminal. After that, you need to establish a TF0 connection. As shown in FIG. 1, the method includes:

The configuration information of the first codec TC and the configuration information of the third TC are obtained, where the first TC is used to process voice data of the first terminal before the first terminal generates a handover, and the third The TC is configured to process the voice data of the first terminal after the first terminal is switched.

It is worth noting that one BSC manages multiple TCs, and each TC processes voice data of multiple UEs in one or more cells. If the first terminal and the second terminal are located in the same cell or neighboring cells, the first TC, the second TC, and the third TC may be the same TC. Among them, the TC can be built in the BSC, or it can be placed independently of the BSC.

Here, the BSC is the BSC where the first terminal is currently located, and can obtain configuration information of the first TC that processes the voice data of the first terminal.

The first terminal and the second terminal may be located in the same BSC or may be located in different BSCs.

The configuration information of the third TC is sent to the first TC, so that the first TC determines configuration information of the first TC and the third TC before the handover occurs in the first terminal. When the configuration information is the same, the first TC and the second TC maintain the first codec rate for the downlink coded TFO connection established by the first terminal and the second terminal; wherein the first codec rate is the first And determining, by the TC, the second TC, the second TC is used to process the voice data of the second terminal, where the second terminal is maintained with the first terminal, The peer terminal of the voice call service.

103. Send configuration information of the first codec TC to the third TC, so that after the first terminal handover is completed, the third TC determines configuration information of the first TC and the third TC. When the configuration information is the same, the third TC directly uses the first codec rate to establish a phase-free coded TFO connection with the second TC.

In this embodiment, the configuration information of each TC includes at least a codec rate set supported by each TC, and a codec type supported by each TC, so that each TC establishes a TFO connection. It should be noted that the method provided by this embodiment is implemented by the BSC corresponding to the third TC. In a possible case, the BSC corresponding to the first TC and the BSC corresponding to the third TC may be the same BSC.

The voice communication method provided by the embodiment of the present invention, before the first terminal is switched (the voice data of the first terminal is processed by the first TC before the handover, and the voice data of the first terminal is processed by the third TC after the handover) The BSC sends the configuration information of the third TC to the first TC, so that the first TC may obtain the configuration information of the third TC in advance when the first terminal performs the handover, if the configuration information of the first TC and If the configuration information of the third TC is the same, the first TC may maintain a TFO connection with the second TC by using the first codec rate. After the first terminal is switched, the BSC sends the configuration information of the first TC to the third TC. In order to enable the third TC to know the configuration information of the first TC in advance, if the configuration information of the first TC and the configuration information of the third TC are the same, the third TC may directly use the first A codec rate establishes a TFO connection with the second TC. Compared with the prior art, when the first terminal needs to perform handover, the first TC does not need to perform TFO codec rate adjustment before the handover, and the third TC does not need to perform TFO codec rate adjustment after the handover, and can directly use the first The codec rate establishes a TFO connection with the second TC (the first codec rate is higher than the initial rate), eliminating the transition from the initial rate (lower rate) to the first codec rate (higher rate), at TFO Maintaining a higher codec rate during the link reestablishment process can ensure a higher amount of voice information transmission and improve the clarity of the voice call. On the other hand, after the first terminal completes the handover, the third TC can know the second TC in advance. The configuration information, so the third TC and the second TC do not need to remove the TRAU frame to implement the configuration frame interaction, which can avoid the loss of voice information and ensure the quality of the voice call.

As a specific implementation manner, step 101 is specifically:

The BSC receives configuration information of the first TC reported by the first TC, and receives configuration information of the third TC of the third TC.

Preferably, in order to ensure the service quality of the voice service, the BSC can be connected through a signaling channel. Receiving, by the first TC, configuration information of the first TC, and receiving, by using a signaling channel, configuration information of the third TC sent by the third TC. With the above technical solution, the service channel is not occupied when the configuration information of the TC is transmitted, and the service quality of the voice service can be ensured.

It is to be noted that, if the first TC and the third TC belong to different BSC management, the foregoing step 101 may include: the BSC receiving the first TC sent by the BSC corresponding to the first TC Configuration information.

Specifically, when the first TC and the third TC belong to different BSC management, the foregoing step 102 includes: before the handover occurs in the first terminal, the BSC sends configuration information of the third TC to the The BSC corresponding to the first TC sends the configuration information of the third TC to the first TC by using the BSC corresponding to the first TC, so that the first TC determines configuration information of the first TC and When the configuration information of the third TC is the same, the first TC and the second TC are maintained with the first codec rate to maintain the downlink codec TFO connection. Embodiment 2

For the sake of understanding, the application scenario of the first terminal is briefly described. The voice communication is established between the first terminal and the second terminal. Before the first terminal switches, the voice data of the first terminal is compiled by the first TC. a decoding process, the second TC performs a codec process on the voice data of the second terminal, where the first TC and the second TC establish a TF0 connection between the first terminal and the second terminal; The third TC performs codec processing on the voice data of the first terminal, the second TC performs codec processing on the voice data of the second terminal, and the second TC and the third TC switch in the first terminal. After that, you need to establish a TF0 connection.

As shown in FIG. 2, the method includes: The configuration information of the first codec TC and the configuration information of the third TC are obtained, where the first TC is used to process voice data of the first terminal before the first terminal generates a handover, and the third The TC is configured to process the voice data of the first terminal after the first terminal is switched.

202. Send the configuration information of the third TC to the first TC, so that the first TC determines configuration information of the first TC and the third before the handover occurs in the first terminal. When the configuration information of the TC is the same, the first TC and the second TC are maintained with the first codec rate to maintain the remote coded TFO connection; wherein the first codec rate is the first TC and the second Determining a codec rate for use by the TC after the TCE connection is established, the second TC is configured to process voice data of the second terminal, and the second terminal is to maintain a voice call service with the first terminal. Peer terminal.

203. Send configuration information of the first codec TC to the third TC, so that after the handover occurs in the first terminal, the third TC determines configuration information and location of the first TC. When the configuration information of the third TC is the same, the third TC directly connects to the second TC to establish a level-free coded TFO connection by using the first codec rate.

In this embodiment, the configuration information of each TC includes at least a codec rate set supported by each TC, and a codec type supported by each TC, so that each TC establishes a TFO connection.

It should be noted that the method provided by this embodiment is implemented by the BSC corresponding to the first TC. In a In a possible case, the BSC corresponding to the first TC and the BSC corresponding to the third TC may be the same BSC.

As a specific implementation manner, step 201 is specifically:

Preferably, in order to ensure the service quality of the voice service, the BSC may receive configuration information of the first TC sent by the first TC through a signaling channel, and receive the Configuration information of the third TC sent by the third TC. With the above technical solution, the service channel is not occupied when the configuration information of the TC is transmitted, and the service quality of the voice service can be ensured.

It is to be noted that, if the first TC and the third TC belong to different BSC management, the foregoing step 201 may include: the BSC receiving the third TC sent by the BSC corresponding to the third TC Configuration information.

Specifically, when the first TC and the third TC belong to different BSCs, the foregoing step 203 includes: after the first terminal is switched, sending configuration information of the first TC to the third TC. The BSC, the configuration information of the first TC is sent to the third TC by the BSC corresponding to the third TC, so that the third TC determines configuration information of the first TC and the third When the configuration information of the TC is the same, the third TC directly connects to the second TC to establish a level-free coded TFO connection by using the first codec rate. Embodiment 3

This embodiment provides a voice communication method, and the method can be applied to a TC.

For the sake of understanding, the application scenario of the first terminal is briefly described. The voice communication is established between the first terminal and the second terminal. Before the first terminal switches, the voice data of the first terminal is compiled by the first TC. a decoding process, the second TC performs a codec process on the voice data of the second terminal, where the first TC and the second TC establish a TFO connection between the first terminal and the second terminal; The third TC performs codec processing on the voice data of the first terminal, the second TC performs codec processing on the voice data of the second terminal, and the second TC and the third TC switch in the first terminal. After that, you need to establish a TFO connection.

Specifically, according to the application scenario described above, the voice communication method provided by this embodiment may be implemented by the first TC. As shown in FIG. 3, the method includes:

301. The first TC acquires configuration information of the third TC. Specifically, the first TC may obtain configuration information of the third TC by receiving configuration information of the third TC sent by the BSC.

It is worth noting that one BSC manages multiple TCs, and each TC processes voice data of multiple UEs in one or more cells. If the first terminal and the second terminal are located in the same cell or neighboring cells, the first TC, the second TC, and the third TC may be the same TC.

302. Before the first terminal is switched, the first TC determines that the configuration information of the third TC is the same as the configuration information of the first TC, where the first TC uses the first codec rate and the second TC. Maintain a free-of-order link to decode the TFO connection.

The voice communication method provided by the embodiment of the present invention, before the first terminal is switched (the voice data of the first terminal is processed by the first TC before the handover, and the voice data of the first terminal is processed by the third TC after the handover) The first TC may know the configuration information of the third TC in advance when the first terminal performs the handover. If the configuration information of the first TC and the configuration information of the third TC are the same, the first TC may be The TFO connection is maintained with the second TC using the first codec rate. Compared with the prior art, when the first terminal needs to perform handover, the first TC does not need to perform TFO codec rate adjustment before the handover, and the initial rate (lower rate) to the first codec rate (higher) is omitted. The transition process of rate) maintains a high codec rate during TFO link reconstruction, which ensures high voice information transmission and improves the clarity of voice calls. As an optional implementation, on the basis of the voice communication method shown in FIG. 3, the method may further include the following steps: the first TC may be corresponding to the BSC corresponding to the first TC and the third TC. The base station controller BSC transmits configuration information of the first TC to the third TC, so that after the handover occurs in the first terminal, the third TC determines configuration information of the third TC and the first TC When the configuration information is the same; the third TC directly uses the first codec rate to establish a phase-free coded TFO connection with the second TC.

After the first terminal is switched, the BSC sends the configuration information of the first TC to the third TC, so that the third TC knows the configuration information of the first TC in advance, if the first The configuration information of the TC is the same as the configuration information of the third TC, and the third TC may directly establish a TFO connection with the second TC by using the first codec rate. Compared with the prior art, when the first terminal needs to perform handover, the first TC does not need to perform TFO codec rate adjustment before the handover, and the third TC does not need to perform TFO codec rate adjustment after the handover, and can directly use the first The codec rate establishes a TFO connection with the second TC (the first codec rate is higher than the initial rate), eliminating the transition from the initial rate (lower rate) to the first codec rate (higher rate), at TFO Maintaining a higher codec rate during the link reestablishment process can ensure a higher amount of voice information transmission and improve the clarity of the voice call. On the other hand, after the first terminal completes the handover, the third TC can know the second TC in advance. The configuration information, so the third TC and the second TC do not need to remove the TRAU frame to implement the configuration frame interaction, which can avoid the loss of voice information and ensure the quality of the voice call. Embodiment 4

For the sake of understanding, the application scenario of the first terminal is briefly described. The voice communication is established between the first terminal and the second terminal. Before the first terminal switches, the voice data of the first terminal is compiled by the first TC. Decoding processing, the second TC encodes and decodes the voice data of the second terminal The first TC and the second TC establish a TFO connection between the first terminal and the second terminal. After the first terminal is switched, the third TC encodes and decodes the voice data of the first terminal. The second TC performs codec processing on the voice data of the second terminal, and the second TC and the third TC need to establish a TFO connection after the first terminal is switched.

Specifically, according to the application scenario described above, the voice communication method provided by this embodiment may be implemented by a third TC. As shown in FIG. 4, the method includes:

401. The third TC acquires configuration information of the first TC.

Specifically, the third TC receives the configuration information of the first TC sent by the base station controller BSC. It is worth noting that one BSC manages multiple TCs, and each TC processes voice data of multiple UEs in one or more cells. If the first terminal and the second terminal are located in the same cell or neighboring cells, the first TC, the second TC, and the third TC may be the same TC.

After the first terminal is switched, the third TC determines that the configuration information of the first TC is the same as the configuration information of the third TC, and the third TC directly uses the first codec rate and the The second TC establishes a free-of-order decoding and decoding TFO connection.

The voice communication method provided by the embodiment of the present invention, after the first terminal is switched (the voice data of the first terminal is processed by the first TC before the handover, and the voice data of the first terminal is processed by the third TC after the handover) The third TC can know the configuration information of the first TC in advance, if The configuration information of the first TC is the same as the configuration information of the third TC, and the third TC may directly establish a TFO connection with the second TC by using the first codec rate. Compared with the prior art, when the first terminal needs to perform handover, the third TC does not need to perform TFO codec rate adjustment after the first terminal is switched, and the first codec rate can be directly used to establish a TFO connection with the second TC ( The first codec rate is higher than the initial rate), eliminating the transition from the initial rate (lower rate) to the first codec rate (higher rate), maintaining a higher codec rate during TFO link reconstruction The higher the amount of voice information transmission can be ensured, and the clarity of the voice call is improved. On the other hand, after the first terminal completes the handover, the third TC can know the configuration information of the second TC in advance, so the third TC and the second The TC does not need to remove the TRAU frame to implement the configuration frame interaction, which can avoid the loss of voice information and ensure the quality of voice calls.

As an optional implementation, the voice communication method shown in FIG. 4 may further include the following steps: the third TC passes the BSC corresponding to the third TC and the BSC corresponding to the TC And transmitting the configuration information of the third TC to the first TC, so that the first TC determines configuration information of the first TC and configuration information of the third TC before the first terminal generates a handover. Meanwhile, the first TC and the second TC are connected by the first codec rate to maintain a TFO.

The first TC may obtain the configuration information of the third TC in advance, if the configuration of the first TC and the third If the configuration information of the TC is the same, the first TC may maintain a TFO connection with the second TC by using the first codec rate. Compared with the prior art, when the first terminal needs to perform handover, the first TC does not need to perform TFO codec rate adjustment before the handover, and the initial rate (lower rate) to the first codec rate (higher) is omitted. The transition process of rate) maintains a high codec rate during TFO link reconstruction, which ensures high voice information transmission and improves the clarity of voice calls. Embodiment 5

Specifically, according to the application scenario described above, the voice communication method provided in this embodiment may be implemented by the second TC. As shown in FIG. 5, the method includes:

501, before the first terminal is switched, the second TC receives the indication message sent by the first TC, and according to the indication message, the first codec rate is used to maintain the level-free coded TFO connection with the first TC, where the A codec rate is a codec rate determined by the first TC and the second TC after the establishment of the freeband codec TFO connection.

502. After the first terminal is switched, the second TC receives the indication message sent by the third TC, and directly establishes a TFO connection with the third TC by using the first codec rate according to the indication message. .

The first TC is configured to process the voice of the first terminal before the handover occurs on the first terminal. Data, the third TC is configured to process voice data of the first terminal after the first terminal is switched; the first codec rate is that the first TC and the second TC establish a levelless link After decoding the TFO connection, the codec rate is determined, the second TC is used to process the voice data of the second terminal, and the second terminal is the peer terminal that maintains the voice call service with the first terminal.

In the voice communication method provided by the embodiment of the present invention, before the first terminal is switched, the second TC may use the first codec rate to maintain the TFO connection with the first TC according to the indication message sent by the first TC; After the handover, the second TC may directly establish a TFO connection with the third TC by using the first codec rate according to the indication message sent by the third TC. Compared with the prior art, when the first terminal needs to perform handover, the second TC does not need to perform TFO codec rate adjustment before the handover, and the second TC does not need to perform TFO codec rate adjustment after the handover, and can directly use the A codec rate establishes a TFO connection with the third TC (the first codec rate is higher than the initial rate), eliminating the transition from the initial rate (lower rate) to the first codec rate (higher rate), The TFO link maintains a high codec rate during the reconstruction process, which ensures high voice information transmission and improves the clarity of voice calls. Embodiment 6

Based on the embodiments shown in FIG. 1 to FIG. 5, further, the embodiment provides a voice communication method.

For the sake of understanding, the application scenario of the first terminal is briefly described. The voice communication is established between the first terminal and the second terminal. Before the first terminal switches, the voice data of the first terminal is compiled by the first TC. a decoding process, the second TC performs a codec process on the voice data of the second terminal, where the first TC and the second TC establish a TFO connection between the first terminal and the second terminal; The third TC performs codec processing on the voice data of the first terminal, and the second TC performs codec processing on the voice data of the second terminal, where the second TC and the third The TC needs to establish a TFO connection after the first terminal is switched.

As shown in FIG. 6, the method includes:

601. The first TC sends the configuration information of the first TC to the BSC during the TFO voice call between the first terminal and the second terminal.

It should be emphasized that the first embodiment is mainly described with the first terminal as the main object. Therefore, the second TC in this embodiment specifically refers to the TC corresponding to the opposite end (ie, the second terminal) of the first terminal, and does not refer to the TC. A fixed TC. For example, in the handover process of the first terminal, if the second terminal does not switch, the second TC corresponding to the second terminal is fixed; if the second terminal switches, the second terminal corresponds to the second There may be multiple TCs, including the TC before switching and the TC after switching.

602. The BSC receives configuration information of the first TC reported by the first TC.

603. When the first terminal needs to perform the handover, the BSC determines the TC corresponding to the first terminal, that is, the third TC, and acquires the configuration information of the third TC.

Specifically, if the third TC is also in the BSC management, the third TC may directly report the configuration information of the third TC to the BSC.

Preferably, in order to ensure the complete transmission of the voice information and ensure the quality of the voice call, the BSC may receive the configuration information of the first TC sent by the first TC through a signaling channel; and receive the Configuration information of the third TC reported by the third TC. That is, when the steps 602 and 603 are implemented, the first TC may send the configuration information of the first TC to the BSC through a signaling channel, where the third TC may send its configuration information through a signaling channel. Give the BSC.

It should be noted that the signaling channel is a dedicated channel for transmitting signaling. Using the above method, The service channel is not required to be used in the process of transmitting the TC configuration information to the BSC, and the service quality of the voice service of the user can be guaranteed.

604. Before the handover occurs in the first terminal, the BSC sends configuration information of the third TC to the first TC.

Specifically, in this embodiment, the “before the first terminal generates the handover” means that: the first terminal determines that the handover is to be performed, but the handover procedure has not started yet.

For example, in the implementation of this step, the BSC may carry the configuration information of the third TC in a Handover-Soon message to the first TC.

605. The first TC receives the to-be-switched message, and obtains the configuration information of the third TC, and determines that the configuration information of the first TC and the configuration information of the third TC are the same.

― The TC and the second TC maintain the TFO connection with the first codec rate; if the configuration information of the first TC and the configuration information of the third TC are different, the first TC and the second TC use the initial rate

(The initial rate is lower than the first codec rate) Maintain the TFO connection.

It should be noted that, in the prior art, when the first TC receives the upcoming handover message (the configuration information of the TC is not included in the handover message in the prior art), the rate control mode in the handover scenario is triggered ( Rate Control For Handover RCh), that is, lowering the TFO frame (frame carrying voice information) to the initial rate, and sending a rate request to the opposite TC (ie, the second TC), the rate request is used to request the peer TC to reduce the number of Decoding rate; The peer TC receives and responds to the rate request, and reduces the TFO frame codec rate of the local TC to an initial rate.

It should be emphasized that the first codec rate in the embodiment is higher than the initial rate, and a high voice information transmission amount can be ensured during the handover process, and the clarity of the voice call is improved.

606. The BSC sends the configuration information of the first TC to the third TC, so that after the first terminal is switched, the third TC determines configuration information and a version of the first TC. When the configuration information of the third TC is the same, the third TC directly establishes a TFO connection with the second TC by using the first codec rate; if the configuration information of the first TC and the local third TC are If the configuration information is different, the third TC establishes a TFO connection with the second TC by using the prior art.

It is worth noting that if the existing technology is used to establish a TFO connection, after the first terminal completes the handover, the third TC performs the rate control initial mode ( Rate Control for Initial RCi), which will carry the reduced codec rate to the initial The rate rate request is sent to the second TC through the TFO frame, and if the second TC supports the initial rate, the initial rate TFO frame is sent to the third TC in response to the rate request from the third TC. After the third TC receives these TFO frames, it can start rebuilding the TFO connection. After the TFO connection is established, the third TC and the second TC exchange their configuration information by exchanging configuration frames, and make judgments according to the configuration of the peer end and the configuration of the local end. If the configurations of the two parties are compatible, the adjustment is made to a higher level. The codec rate continues to maintain the TFO connection; if the two configurations are not compatible, the TFO connection is broken.

It can be seen that, compared with the prior art, the method provided by the embodiment, before the TFO connection is established, the third TC has previously learned the configuration information of the first TC, so the third TC can be directly edited. The decoding rate (such as the first codec rate described above) establishes and maintains a TFO connection with the second TC, which not only reduces the time required to establish a TFO connection, but also directly communicates with a higher codec rate to ensure call quality. On the other hand, after the first terminal completes the handover, the third TC can learn the configuration information of the second TC in advance, so the third TC and the second TC do not need to remove the TRAU frame to implement the configuration frame interaction, and can avoid the voice information. Lost, ensuring the quality of voice calls.

It should be noted that the above method is described by taking the case where the first TC and the third TC belong to the same BSC management. As an extension manner, for the scenarios in which the first TC and the third TC belong to different BSC management, the configuration information of each TC may be forwarded by the BSC before handover to the switched BSC through the signaling channel between the core network or the BSC. Applicable to the first TC and the third TC are different BSC managed scenarios. The first TC before the handover belongs to the first BSC management, and the third TC after the handover belongs to the second BSC management as an example, and the method for acquiring the configuration information of each TC by the second BSC is described as follows:

After the first terminal is switched, the first BSC forwards the configuration information of the first TC to the second BSC through the signaling channel between the core network or the BSC.

For example, the first BSC may send the configuration information of the first TC and the configuration information of the second TC to the second BSC through the Old BSS to New BSS information cell in the HANDOVER REQUIRED message.

S2. The second BSC sends the configuration information of the first TC to the third TC to establish the TF0 connection according to the configuration information of the first TC obtained from the first BSC.

The specific establishment process of the TF0 connection is similar to that in the embodiment shown in FIG. 6, and is not described here.

The voice communication method provided by the embodiment of the present invention, before the first terminal is switched (the voice data of the first terminal is processed by the first TC before the handover, and the voice data of the first terminal is processed by the third TC after the handover) The BSC sends the configuration information of the third TC to the first TC, so that the first TC may obtain the configuration information of the third TC in advance when the first terminal performs the handover, if the configuration information of the first TC and If the configuration information of the third TC is the same, the first TC may use the first codec rate to maintain the T0 connection with the second TC. After the first terminal is switched, the BSC sends the configuration information of the first TC to the third TC. In order to enable the third TC to know the configuration information of the first TC in advance, if the configuration information of the first TC and the configuration information of the third TC are the same, the third TC may directly use the first A codec rate establishes a TFO connection with the second TC. Compared with the prior art, when the first terminal needs to perform handover, the first TC does not need to perform the TF0 codec rate adjustment before the handover, and the third TC does not need to perform the TF0 codec rate adjustment after the handover, and the first TC can be directly used. The codec rate establishes a TF0 connection with the second TC (the first codec rate is higher than the initial rate), The transition from the initial rate (lower rate) to the first codec rate (higher rate) is eliminated, and a higher codec rate is maintained during the TFO link reconstruction process, which ensures a higher amount of voice information transmission. The resolution of the voice call is improved. On the other hand, after the first terminal completes the handover, the third TC can know the configuration information of the second TC in advance, so the third TC and the second TC do not need to remove the TRAU frame to implement the configuration frame. Interaction can avoid the loss of voice information and ensure the quality of voice calls.

It should be noted that, for a call service of the AMR (Adaptive Multi-Rate) type, the rate adjustment needs to be performed during the TFO connection reconstruction. Therefore, the method provided in this embodiment is particularly applicable to the application. Call service in AMR codec mode. However, it should be emphasized that, for a call service that is coded to be a non-AMR type, the method provided by the embodiment of the present invention can obtain the configuration information of the TC (including the configuration frame of each TC) in advance, and enable the source before the handover. The TC obtains the configuration frame information of the target TC in advance, and the target TC can know the configuration frame information of the source TC and the remote TC in advance after the handover, and the target TC and the opposite TC do not need to remove the TRAU frame to implement the configuration frame interaction, thereby avoiding the voice. The loss of information reduces the damage to the voice quality caused by the interactive configuration frame during the TFO reconstruction process. Example 7

The embodiment provides a voice communication device, which can implement the method embodiment shown in FIG. 1 and the method for implementing the BSC side corresponding to the third TC in FIG.

As shown in FIG. 7, the device includes:

The obtaining module 71 is configured to acquire the configuration information of the first codec TC and the configuration information of the third TC, where the first TC is configured to process the voice data of the first terminal before the first terminal generates the handover, The third TC is configured to process voice data of the first terminal after the first terminal is switched;

The sending module 72 is configured to send configuration information of the third TC acquired by the acquiring module to the The first TC, so that the first TC determines that the configuration information of the first TC and the configuration information of the third TC are the same when the first TC determines that the first terminal is switched, the first TC and the first The second TC uses the first codec rate to maintain the demise-decoded TF0 connection; wherein, the first codec rate is determined by the first TC and the second TC establishing a demise-decoded TFO connection. a codec rate, the second TC is used to process voice data of the second terminal, and the second terminal is a peer terminal that maintains a voice call service with the first terminal;

The sending module 72 is further configured to send configuration information of the first codec TC to the third TC, so that after the first terminal handover is completed, the third TC determines the first When the configuration information of the TC is the same as the configuration information of the third TC, the third TC directly connects to the second TC to establish a sleepless coded TFO connection by using the first codec rate.

Further, as shown in FIG. 8, the obtaining module 71 includes:

The receiving unit 711 is configured to receive configuration information of the first TC that is reported by the first TC, and the receiving unit 711 is further configured to receive configuration information of the third TC that is reported by the third TC.

Specifically, the receiving unit 711 is configured to receive, by using a signaling channel, configuration information of the first TC that is sent by the first TC, and receive, by using a signaling channel, the third TC that is sent by the third TC. Configuration information.

When the first TC and the third TC belong to different BSCs, the acquiring module 71 is specifically configured to receive the configuration information of the first TC sent by the base station controller BSC corresponding to the first TC.

Specifically, the sending module 72 is configured to send the configuration information of the third TC to the BSC corresponding to the first TC before the handover of the first terminal occurs, and the BSC corresponding to the first TC The configuration information of the third TC is sent to the first TC.

The voice communication device provided by the embodiment of the present invention is before the switching occurs in the first terminal (before switching The first TC processes the voice data of the first terminal, and after the handover, the third TC processes the voice data of the first terminal, and the BSC sends the configuration information of the third TC to the first TC, so that the first TC The configuration information of the third TC may be obtained in advance when the first terminal performs the handover. If the configuration information of the first TC and the configuration information of the third TC are the same, the first TC may use the first codec. The rate is the TFO connection with the second TC; after the first terminal is switched, the BSC sends the configuration information of the first TC to the third TC, so that the third TC knows the configuration information of the first TC in advance, if The configuration information of the first TC is the same as the configuration information of the third TC, and the third TC may directly establish a TFO connection with the second TC by using the first codec rate. Compared with the prior art, when the first terminal needs to perform handover, the first TC does not need to perform TFO codec rate adjustment before the handover, and the third TC does not need to perform TFO codec rate adjustment after the handover, and can directly use the first The codec rate establishes a TFO connection with the second TC (the first codec rate is higher than the initial rate), eliminating the transition from the initial rate (lower rate) to the first codec rate (higher rate), at TFO Maintaining a higher codec rate during the link reestablishment process can ensure a higher amount of voice information transmission and improve the clarity of the voice call. On the other hand, after the first terminal completes the handover, the third TC can know the second TC in advance. The configuration information, so the third TC and the second TC do not need to remove the TRAU frame to implement the configuration frame interaction, which can avoid the loss of voice information and ensure the quality of the voice call. Example eight

The embodiment of the present invention provides a voice communication device, which can implement the method embodiment shown in FIG. 2 and the method for implementing the BSC side corresponding to the first TC in FIG. 1 and FIG.

As shown in FIG. 9, the device includes:

The obtaining module 91 is configured to acquire the configuration information of the first codec TC and the configuration information of the third TC, where the first TC is configured to process the voice data of the first terminal before the first terminal generates the handover, The third TC is configured to process the voice of the first terminal after the handover of the first terminal occurs. Data

The sending module 92 is configured to send the configuration information of the third TC to the first TC, so that the first TC determines configuration information of the first TC and before the handover occurs in the first terminal. When the configuration information of the third TC is the same, the first TC and the second TC are maintained with a first codec rate to maintain a level-free coded TFO connection; wherein, the first codec rate is the first And determining, by the TC, the second TC, the second TC is used to process the voice data of the second terminal, where the second terminal is maintained with the first terminal, The peer terminal of the voice call service;

The sending module 92 is further configured to send the configuration information of the first TC to the third TC, so that after the first terminal handover is completed, the third TC determines the configuration of the first TC. When the information and the configuration information of the third TC are the same, the third TC directly uses the first codec rate to establish a phase-free coded TFO connection with the second TC.

As shown in FIG. 10, the obtaining module 91 includes:

The receiving unit 911 is configured to receive configuration information of the first TC that is reported by the first TC, and the receiving unit 911 is further configured to receive configuration information of the third TC that is reported by the third TC.

Specifically, the receiving unit 911 is configured to receive, by using a signaling channel, configuration information of the first TC that is sent by the first TC, and receive, by using a signaling channel, the third TC that is sent by the third TC. Configuration information.

When the first TC and the third TC belong to different BSCs, the acquiring module 91 is specifically configured to receive configuration information of the third TC sent by the base station BSC corresponding to the third TC.

Specifically, the sending module 92 is configured to: after the first terminal is switched, send the configuration information of the first TC to the BSC corresponding to the third TC, and use the BSC corresponding to the third TC to The configuration information of the first TC is sent to the third TC. The voice communication device provided by the embodiment of the present invention, before the first terminal is switched (the voice data of the first terminal is processed by the first TC before the handover, and the voice data of the first terminal is processed by the third TC after the handover) The BSC sends the configuration information of the third TC to the first TC, so that the first TC may obtain the configuration information of the third TC in advance when the first terminal performs the handover, if the configuration information of the first TC and If the configuration information of the third TC is the same, the first TC may maintain a TFO connection with the second TC by using the first codec rate. After the first terminal is switched, the BSC sends the configuration information of the first TC to the third TC. In order to enable the third TC to know the configuration information of the first TC in advance, if the configuration information of the first TC and the configuration information of the third TC are the same, the third TC may directly use the first A codec rate establishes a TFO connection with the second TC. Compared with the prior art, when the first terminal needs to perform handover, the first TC does not need to perform TFO codec rate adjustment before the handover, and the third TC does not need to perform TFO codec rate adjustment after the handover, and can directly use the first The codec rate establishes a TFO connection with the second TC (the first codec rate is higher than the initial rate), eliminating the transition from the initial rate (lower rate) to the first codec rate (higher rate), at TFO Maintaining a higher codec rate during the link reestablishment process can ensure a higher amount of voice information transmission and improve the clarity of the voice call. On the other hand, after the first terminal completes the handover, the third TC can know the second TC in advance. The configuration information, so the third TC and the second TC do not need to remove the TRAU frame to implement the configuration frame interaction, which can avoid the loss of voice information and ensure the quality of the voice call. Example nine

The embodiment of the present invention provides a voice communication device, which can implement the method embodiment shown in FIG. 3 above, and the method for implementing the first TC in FIG. 1-2 and FIG.

As shown in FIG. 11, the voice communication device includes:

The receiving module 1101 is configured to receive configuration information of a third TC sent by the base station controller BSC, where the processing module 1102 is configured to determine, before the first terminal is switched, the receiving module 1101 receives The configuration information of the third TC is the same as the configuration information of the local TC, and the first codec rate and the second TC are used to maintain the levelless codec TFO connection;

As shown in FIG. 12, the device further includes:

The sending module 1103 is configured to send configuration information of the local TC to the base station controller BSC corresponding to the third TC, and send configuration information of the local TC to the third by using a BSC corresponding to the third TC The TC, when the third TC determines that the configuration information of the third TC and the configuration information of the local TC are the same after the third TC is switched, the third TC directly uses the A codec rate is established with the second TC to establish a freeze coded TFO connection.

The voice communication device provided by the embodiment of the present invention, before the first terminal is switched (the voice data of the first terminal is processed by the first TC before the handover, and the voice data of the first terminal is processed by the third TC after the handover) The first TC may know the configuration information of the third TC in advance when the first terminal performs the handover. If the configuration information of the first TC and the configuration information of the third TC are the same, the first TC may be The TFO connection is maintained with the second TC using the first codec rate. Compared with the prior art, when the first terminal needs to perform handover, the first TC does not need to perform TFO codec rate adjustment before the handover, and the initial rate (lower rate) to the first codec rate (higher) is omitted. The transition process of rate) maintains a high codec rate during TFO link reconstruction, which ensures high voice information transmission and improves the clarity of voice calls. Example ten The embodiment of the invention provides a voice communication device, which can implement the method embodiment shown in FIG. 4 and the method for implementing the third TC in FIG. 1-3 and FIG. 5-6.

As shown in FIG. 13, the voice communication device includes:

The receiving module 1301 is configured to receive configuration information of the first TC sent by the base station controller BSC, and the processing module 1302 is configured to determine, after the first terminal is switched, that the configuration information of the first TC is the same as the configuration information of the local TC, Determining, by the local TC, a TFO connection with the second TC by using a first codec rate;

Optionally, the device further includes:

The sending module 1303 is configured to send, by the TC, the configuration information of the local TC to the BSC corresponding to the first TC, and send the configuration information of the local TC to the first TC by using the BSC corresponding to the first TC. The first TC and the second TC are used when the first TC determines that the configuration information of the first TC and the configuration information of the local TC are the same before the first TC is switched. The first codec rate maintains a TFO connection.

The voice communication device provided by the embodiment of the present invention, after the first terminal is switched (the voice data of the first terminal is processed by the first TC before the handover, and the voice data of the first terminal is processed by the third TC after the handover) The third TC can learn the configuration information of the first TC in advance. If the configuration information of the first TC and the configuration information of the third TC are the same, the third TC can directly use the first TC. The codec rate establishes a TFO connection with the second TC. Compared with the prior art, when the first terminal needs to perform handover, the third TC does not need to perform TFO codec after the first terminal is switched. Rate adjustment, the first codec rate can be directly used to establish a TFO connection with the second TC (the first codec rate is higher than the initial rate), and the initial rate (lower rate) to the first codec rate is omitted. The high-rate transition process maintains a high codec rate during the TFO link reconstruction process, which ensures a high amount of voice information transmission and improves the clarity of the voice call. On the other hand, after the first terminal completes the handover, The third TC can know the configuration information of the second TC in advance, so that the third TC and the second TC do not need to remove the TRAU frame to implement the configuration frame interaction, thereby avoiding the loss of the voice information and ensuring the voice call quality. Embodiment 11

The embodiment of the invention provides a voice communication device, which can implement the method embodiment shown in FIG. 5 and the method for implementing the second TC in FIG. 1-4 and FIG.

As shown in FIG. 14, the voice communication device includes:

The receiving module 1401 is configured to: before receiving the handover of the first terminal, receive an indication message sent by the first TC, and use the first codec rate to maintain a level-free coded TFO connection with the first TC according to the indication message, where The codec rate is determined by the first TC and the local TC to establish a codec decoding TFO connection after determining a codec rate;

The receiving module 1401 is further configured to: after the first terminal is switched, receive an indication message sent by the third TC, and directly establish a TFO connection with the third TC by using the first codec rate according to the indication message. ;

The first TC is configured to process the voice data of the first terminal before the handover occurs in the first terminal, and the third TC is configured to process the voice of the first terminal after the handover occurs in the first terminal. Data; the first codec rate is a codec rate determined by the first TC and the local TC to establish a level-free coded TFO connection, and the local TC is configured to process voice data of the second terminal, where The second terminal is a peer terminal that maintains a voice call service with the first terminal. The voice communication device provided by the embodiment of the present invention, before the first terminal is switched, the second TC may use the first codec rate to maintain the TFO connection with the first TC according to the indication message sent by the first TC; After the handover, the second TC may directly establish a TFO connection with the third TC by using the first codec rate according to the indication message sent by the third TC. Compared with the prior art, when the first terminal needs to perform handover, the second TC does not need to perform TFO codec rate adjustment before the handover, and the second TC does not need to perform TFO codec rate adjustment after the handover, and can directly use the A codec rate establishes a TFO connection with the third TC (the first codec rate is higher than the initial rate), eliminating the transition from the initial rate (lower rate) to the first codec rate (higher rate), The TFO link maintains a high codec rate during the reconstruction process, which ensures high voice information transmission and improves the clarity of voice calls.

Example twelve

This embodiment provides a BSC, which can implement the method embodiment shown in FIG. 1 and the method for implementing the BSC side corresponding to the third TC in FIG.

As shown in FIG. 15, the BSC includes:

The receiver 1501 is configured to acquire configuration information of the first codec TC and configuration information of the third TC, where the first TC is configured to process the voice data of the first terminal before the first terminal generates the handover, The third TC is configured to process voice data of the first terminal after the first terminal is switched;

The transmitter 1502 is configured to send configuration information of the third TC acquired by the receiver to the first TC, so that the first TC determines the first TC before the handover occurs in the first terminal. When the configuration information is the same as the configuration information of the third TC, the first TC and the second TC are maintained with a first codec rate to maintain a downlink codec TFO connection; wherein, the first codec rate is Determining, by the first TC and the second TC, a codec rate of the TFO connection, the second TC is used to process voice data of the second terminal, and the second terminal is configured to The first terminal maintains a peer terminal of the voice call service;

The transmitter 1502 is further configured to send configuration information of the first codec TC to the third TC, so that after the first terminal handover is completed, the third TC determines the first When the configuration information of the TC is the same as the configuration information of the third TC, the third TC directly connects to the second TC to establish a sleepless coded TFO connection by using the first codec rate.

Specifically, the receiver 1501 is configured to receive configuration information of the first TC reported by the first TC, and receive configuration information of the third TC that is >3⁄4 on the third TC.

Preferably, the receiver 1501 is configured to receive, by using a signaling channel, configuration information of the first TC that is sent by the first TC, and receive, by using a signaling channel, the third TC that is sent by the third TC. Configuration information.

When the first TC and the third TC belong to different BSC management, the receiver 1501 is specifically configured to receive configuration information of the first TC sent by the base station controller BSC corresponding to the first TC.

Specifically, the transmitter 1502 is configured to send the configuration information of the third TC to the BSC corresponding to the first TC before the handover of the first terminal occurs, and the BSC corresponding to the first TC The configuration information of the third TC is sent to the first TC.

The BSC provided by the embodiment of the present invention processes the voice data of the first terminal by the first TC before the handover, and processes the voice data of the first terminal by the third TC after the handover, BSC Transmitting the configuration information of the third TC to the first TC, so that the first TC may obtain the configuration information of the third TC in advance when the first terminal performs the handover, if the configuration information of the first TC and the third If the configuration information of the TC is the same, the first TC may maintain a TFO connection with the second TC by using the first codec rate; after the first terminal is switched, the BSC sends the message to the third TC. The configuration information of the first TC, so that the configuration information of the first TC is known in advance, and if the configuration information of the first TC and the configuration information of the third TC are the same, the third TC may be The TFO connection is established with the second TC directly using the first codec rate. Compared with the prior art, when the first terminal needs to perform handover, the first TC does not need to perform TFO codec rate adjustment before the handover, and the third TC does not need to perform TFO codec rate adjustment after the handover, and can directly use the first The codec rate establishes a TFO connection with the second TC (the first codec rate is higher than the initial rate), eliminating the transition from the initial rate (lower rate) to the first codec rate (higher rate), at TFO Maintaining a higher codec rate during the link reestablishment process can ensure a higher amount of voice information transmission and improve the clarity of the voice call. On the other hand, after the first terminal completes the handover, the third TC can know the second TC in advance. The configuration information, so the third TC and the second TC do not need to remove the TRAU frame to implement the configuration frame interaction, which can avoid the loss of voice information and ensure the quality of the voice call.

Example thirteen

The embodiment of the present invention provides a BSC, which can implement the foregoing method embodiment shown in FIG. 2, and a method for implementing the BSC side corresponding to the first TC in FIG. 1 and FIG. 3-6.

As shown in FIG. 16, the BSC includes:

The receiver 1601 is configured to acquire the configuration information of the first codec TC and the configuration information of the third TC, where the first TC is configured to process the voice data of the first terminal before the first terminal generates the handover, The third TC is configured to process voice data of the first terminal after the first terminal is switched;

The transmitter 1602 is configured to send the configuration information of the third TC to the first TC, so that the first TC determines configuration information of the first TC and before the handover occurs in the first terminal. When the configuration information of the third TC is the same, the first TC and the second TC use the first codec speed. The rate-maintaining code-decoding TFO connection is maintained; wherein, the first codec rate is determined by the first TC and the second TC to establish a codec-decoded TF0 connection, and the codec rate is determined. The TC is configured to process voice data of the second terminal, where the second terminal is a peer terminal that maintains a voice call service with the first terminal;

The transmitter 1602 is further configured to send configuration information of the first TC to the third TC, so that after the first terminal handover is completed, the third TC determines a configuration of the first TC. When the information and the configuration information of the third TC are the same, the third TC directly uses the first codec rate to establish a phase-free coded TFO connection with the second TC.

The receiver 1601 is configured to receive configuration information of the first TC reported by the first TC, and receive configuration information of the third TC that is >3⁄4 on the third TC.

Specifically, the receiver 1601 is configured to receive, by using a signaling channel, configuration information of the first TC that is sent by the first TC, and receive, by using a signaling channel, the third TC that is sent by the third TC. Configuration information.

When the first TC and the third TC belong to different BSC management, the receiver 1601 is specifically configured to receive configuration information of the third TC sent by the base station BSC corresponding to the third TC.

The transmitter 1602 is configured to: after the first terminal is switched, send configuration information of the first TC to a BSC corresponding to the third TC, and use the BSC corresponding to the third TC to perform the The configuration information of a TC is sent to the third TC.

The BSC provided by the embodiment of the present invention processes the voice data of the first terminal by the first TC before the handover, and processes the voice data of the first terminal by the third TC after the handover, BSC Transmitting the configuration information of the third TC to the first TC, so that the first TC may obtain the configuration information of the third TC in advance when the first terminal performs the handover, if the configuration information of the first TC and the third If the configuration information of the TC is the same, the first TC may use the first codec rate to maintain the T0 connection with the second TC; after the first terminal is switched, the BSC sends the message to the third TC. The configuration information of the first TC, so that the configuration information of the first TC is known in advance, and if the configuration information of the first TC and the configuration information of the third TC are the same, the third TC may be The TFO connection is established with the second TC directly using the first codec rate. Compared with the prior art, when the first terminal needs to perform handover, the first TC does not need to perform TFO codec rate adjustment before the handover, and the third TC does not need to perform TFO codec rate adjustment after the handover, and can directly use the first The codec rate establishes a TFO connection with the second TC (the first codec rate is higher than the initial rate), eliminating the transition from the initial rate (lower rate) to the first codec rate (higher rate), at TFO Maintaining a higher codec rate during the link reestablishment process can ensure a higher amount of voice information transmission and improve the clarity of the voice call. On the other hand, after the first terminal completes the handover, the third TC can know the second TC in advance. The configuration information, so the third TC and the second TC do not need to remove the TRAU frame to implement the configuration frame interaction, which can avoid the loss of voice information and ensure the quality of the voice call. Embodiment 14

The embodiment of the present invention provides a TC, which can implement the foregoing method embodiment shown in FIG. 3, and implement the method of the first TC in FIG. 1-2 and FIG.

As shown in FIG. 17, the TC includes:

a receiver 1701, configured to receive configuration information of a third TC sent by the base station controller BSC, where the processor 1702 is configured to determine configuration information of the third TC received by the receiver 1701 before the first terminal is switched. The configuration information of the local TC is the same, and the first codec rate and the second TC are used to maintain the free-of-line codec TFO connection;

The local TC is configured to process the voice data of the first terminal before the handover occurs on the first terminal, and the third TC is configured to process the voice data of the first terminal after the handover of the first terminal occurs. The first codec rate is determined by the local TC and the second TC to establish a codec decoding TFO connection, and the second TC is used to process the voice data of the second terminal. The second terminal is a peer terminal that maintains a voice call service with the first terminal.

Optionally, the BSC provided in this embodiment further includes:

The transmitter 1703 is configured to send the configuration information of the local TC to the base station controller BSC corresponding to the third TC, and send the configuration information of the local TC to the third by using a BSC corresponding to the third TC. The TC, when the third TC determines that the configuration information of the third TC and the configuration information of the local TC are the same after the third TC is switched, the third TC directly uses the A codec rate is established with the second TC to establish a freeze coded TFO connection.

The TC provided by the embodiment of the present invention processes the voice data of the first terminal by the first TC and the voice data of the first terminal by the third TC after the handover, before the handover occurs on the first terminal. The first T (ie, the TC provided by the embodiment) C may know the configuration information of the third TC in advance when the first terminal performs the handover, if the configuration information of the first TC and the configuration information of the third TC are the same. The first TC may maintain a TFO connection with the second TC using the first codec rate. Compared with the prior art, when the first terminal needs to perform handover, the first TC does not need to perform TFO codec rate adjustment before the handover, and the initial rate (lower rate) to the first codec rate (higher) is omitted. The transition process of rate) maintains a high codec rate during TFO link reconstruction, which ensures high voice information transmission and improves the clarity of voice calls.

Example fifteen

The embodiment of the present invention provides a TC, which can implement the method embodiment shown in FIG. 4 above, and the method for implementing the third TC in FIG. 1-3 and FIG. 5-6.

As shown in Figure 18, the TC includes:

The receiver 1801 is configured to receive configuration information of the first TC sent by the base station controller BSC, where the processor 1802 is configured to determine configuration information of the first TC after the first terminal is switched. The configuration information of the local TC is the same, and the local TC directly establishes a TFO connection with the second TC by using the first codec rate;

The TC provided in this embodiment further includes:

The transmitter 1803 is configured to send, by the TC, the configuration information of the local TC to the BSC corresponding to the first TC, and send the configuration information of the local TC to the first TC by using a BSC corresponding to the first TC. The first TC and the second TC are used when the first TC determines that the configuration information of the first TC and the configuration information of the local TC are the same before the first TC is switched. The first codec rate maintains a TFO connection.

The TC provided by the embodiment of the present invention processes the voice data of the first terminal by the first TC before the handover, and the third TC (that is, the TC provided by the embodiment) processes the voice data after the handover. The third TC can learn the configuration information of the first TC in advance. If the configuration information of the first TC and the configuration information of the third TC are the same, the third TC can The TFO connection is established with the second TC directly using the first codec rate. Compared with the prior art, when the first terminal needs to perform handover, the third TC does not need to perform TFO codec rate adjustment after the first terminal is switched, and the first codec rate can be directly used to establish a TFO connection with the second TC ( The first codec rate is higher than the initial rate), eliminating the transition from the initial rate (lower rate) to the first codec rate (higher rate), maintaining a higher codec rate during TFO link reconstruction The third TC can know the configuration information of the second TC in advance, after the first terminal completes the handover, and the third TC can know the configuration information of the second TC in advance. The third TC and the second TC do not need to remove the TRAU frame to implement the configuration frame interaction, which can avoid the loss of voice information and ensure the quality of the voice call.

Example sixteen

The embodiment of the present invention provides a TC, which can implement the method embodiment shown in FIG. 5 above, and the method for implementing the second TC in FIG. 1-4 and FIG.

As shown in FIG. 19, the TC includes:

The receiver 1901 is configured to: before receiving the handover of the first terminal, receive an indication message sent by the first TC, and use the first codec rate to maintain a level-free coded TFO connection with the first TC according to the indication message, where The codec rate is determined by the first TC and the local TC to establish a codec decoding TFO connection after determining a codec rate;

The receiver 1901 is further configured to: after receiving the handover of the first terminal, receive an indication message sent by the third TC, and directly establish a TFO connection with the third TC by using the first codec rate according to the indication message. ;

The first TC is configured to process the voice data of the first terminal before the handover occurs in the first terminal, and the third TC is configured to process the voice of the first terminal after the handover occurs in the first terminal. Data; the first codec rate is a codec rate determined by the first TC and the local TC to establish a level-free coded TFO connection, and the local TC is configured to process voice data of the second terminal, where The second terminal is a peer terminal that maintains a voice call service with the first terminal.

In the TC provided by the embodiment of the present invention, the second TC (that is, the TC provided in this embodiment) may use the first codec rate to maintain the TFO with the first TC according to the indication message sent by the first TC. After the first terminal sends the handover, the second TC may directly establish a TFO connection with the third TC by using the first codec rate according to the indication message sent by the third TC. Compared with the prior art, when the first terminal needs to perform handover, the second TC does not need to perform TFO codec rate adjustment before the handover, and the second TC does not need to perform TFO codec rate adjustment after the handover, and can directly use the A codec rate establishes a TFO connection with the third TC (the first codec rate is higher than the initial rate), eliminating the transition from the initial rate (lower rate) to the first codec rate (higher rate), The TFO link maintains a high codec rate during the reconstruction process, which ensures high voice information transmission and improves the clarity of voice calls. The embodiment of the present invention further provides a voice communication system, which includes at least the BSC provided in Embodiment 12 and the BSC provided in Embodiment 13 in Embodiments of Embodiments 12 to 16. The TC provided by the fourth embodiment, the TC provided in the fifteenth embodiment, and the TC provided in the sixteenth embodiment.

Using the voice communication system, before the handover occurs on the first terminal (the voice data of the first terminal is processed by the first TC before the handover, and the voice data of the first terminal is processed by the third TC after the handover), the BSC Transmitting the configuration information of the third TC to the first TC, so that the first TC may obtain the configuration information of the third TC in advance when the first terminal performs the handover, if the configuration information of the first TC and the third If the configuration information of the TC is the same, the first TC may maintain a TFO connection with the second TC by using the first codec rate; after the first terminal is switched, the BSC sends the configuration information of the first TC to the third TC, to And causing the third TC to know the configuration information of the first TC in advance. If the configuration information of the first TC and the configuration information of the third TC are the same, the third TC may directly use the first The decoding rate establishes a TFO connection with the second TC. Compared with the prior art, when the first terminal needs to perform handover, the first TC does not need to perform TFO codec rate adjustment before the handover, and the third TC does not need to perform TFO codec rate adjustment after the handover, and can directly use the first The codec rate establishes a TFO connection with the second TC (the first codec rate is higher than the initial rate), eliminating the transition from the initial rate (lower rate) to the first codec rate (higher rate), at TFO Chain Maintaining a higher codec rate during the path reconstruction process can ensure higher voice information transmission and improve the clarity of the voice call. On the other hand, after the first terminal completes the handover, the third TC can know the second TC in advance. The configuration information, so the third TC and the second TC do not need to remove the TRAU frame to implement the configuration frame interaction, can avoid the loss of voice information, and ensure the quality of the voice call through the description of the above embodiments, which can be clearly understood by those skilled in the art. It is understood that the present invention can be implemented by means of software plus necessary general hardware, and of course also by hardware, but in many cases the former is a better implementation. Based on such understanding, the technical solution of the present invention, which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a readable storage medium, such as a floppy disk of a computer. A hard disk or optical disk or the like includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform the methods described in various embodiments of the present invention.

The above is only the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention. It should be covered by the scope of the present invention. Therefore, the scope of the invention should be determined by the scope of the appended claims.

Claims

claims

1. A voice communication method, characterized by including:

Obtain the configuration information of the first codec TC and the configuration information of the third TC, wherein the first TC is used to process the voice data of the first terminal before the first terminal switches, and the third TC is used Processing the voice data of the first terminal after the first terminal is switched;

Send the configuration information of the third TC to the first TC, so that before the first terminal switches, the first TC determines the configuration information of the first TC and the configuration information of the third TC. When the configuration information is the same, the first TC and the second TC adopt the first codec rate to maintain the cascade-free codec TFO connection; wherein, the first codec rate is the first codec rate established by the first TC and the second TC. The codec rate to be used is determined after the cascade-free codec TFO is connected. The second TC is used to process the voice data of the second terminal. The second terminal is the opposite end that maintains the voice call service with the first terminal. terminal;

Send the configuration information of the first codec TC to the third TC, so that after the first terminal switching is completed, the third TC determines the configuration information of the first TC and the third TC When the configuration information of the three TCs is the same, the third TC directly uses the first codec rate to establish a cascade-free codec TFO connection with the second TC.

2. The method according to claim 1, characterized in that said obtaining the configuration information of the first codec TC and the configuration information of the third TC includes:

Receive the configuration information of the first TC sent by the first TC through a signaling channel;

Receive the configuration information of the third TC sent by the third TC through a signaling channel.

3. The method according to claim 1 or 2, characterized in that said obtaining the configuration information of the first codec TC includes:

Receive the configuration information of the first TC sent by the base station controller BSC corresponding to the first TC.

4. The method according to any one of claims 1 to 3, characterized in that: sending the configuration information of the third TC to the first TC includes: Before the first terminal switches, the configuration information of the third TC is sent to the BSC corresponding to the first TC, and the configuration information of the third TC is sent to the BSC corresponding to the first TC. The first TC.

5. A voice communication method, characterized by including:

Send the configuration information of the first TC to the third TC, so that after the first terminal switching is completed, the third TC determines the configuration information of the first TC and the configuration information of the third TC. When the configuration information is the same, the third TC directly uses the first codec rate to establish a cascade-free codec TFO connection with the second TC.

6. The method according to claim 5, characterized in that said obtaining the configuration information of the first codec TC and the configuration information of the third TC includes:

7. The method according to claim 5 or 6, characterized in that said obtaining the configuration information of the third TC includes:

Receive the configuration information of the third TC sent by the base station BSC corresponding to the third TC.

8. The method according to claim 6 or 7, characterized in that, after the first terminal is switched, sending the configuration information of the first TC to the third TC includes:

After the first terminal is switched, the configuration information of the first TC is sent to the BSC corresponding to the third TC, and the configuration information of the first TC is sent to the BSC corresponding to the third TC. Describe the third TC.

9. A voice communication method, characterized by including:

Before the first terminal switches, the first TC determines the configuration information of the third TC and the first

The configuration information of the TC is the same, and the first TC adopts the first codec rate and the second TC maintains a cascade-free codec TFO connection;

Wherein, the first TC is used to process the voice data of the first terminal before the first terminal is switched, and the third TC is used to process the voice data of the first terminal after the first terminal is switched. data; the first codec rate is the codec rate determined to be used after the first TC and the second TC establish a cascade-free codec TFO connection; the second TC is used to process the voice data of the second terminal , the second terminal is a counterpart terminal that maintains a voice call service with the first terminal.

10. The method according to claim 9, further comprising:

The first TC sends the configuration information of the -th TC to the base station controller BSC corresponding to the third TC, and the BSC corresponding to the third TC sends the configuration information of the first TC to the third TC. Three TCs, so that when the third TC determines that the configuration information of the third TC is the same as the configuration information of the first TC after the first terminal is switched, the third TC directly uses all The first codec rate establishes a cascade-free codec TFO connection with the second TC.

11. A voice communication method, characterized by including:

After the first terminal is switched, the third TC determines the configuration information of the first TC and the third The configuration information of the TC is the same, and the third TC directly uses the first codec rate to establish a cascade-free codec TFO connection with the second TC;

12. The method according to claim 11, further comprising:

The third TC sends the configuration information of the third TC to the BSC corresponding to the first TC, and sends the configuration information of the third TC to the first TC through the BSC corresponding to the first TC, So that when the first TC determines that the configuration information of the first TC and the configuration information of the third TC are the same before the first terminal is switched, then the first TC and the second TC The TFO connection is maintained using the first codec rate.

13. A voice communication method, characterized by including:

Before the first terminal switches, the second TC receives the instruction message sent by the first TC, adopts the first codec rate according to the instruction message to maintain the cascade-free codec TFO connection with the first TC, and the first codec The decoding rate is the codec rate determined to be used after the first TC and the second TC establish a cascade-free codec TFO connection;

After the first terminal is switched, the second TC receives the instruction message sent by the third TC, and directly uses the first codec rate to establish a TFO connection with the third TC according to the instruction message; wherein , the first TC is used to process the voice data of the first terminal before the first terminal is switched, and the third TC is used to process the voice data of the first terminal after the first terminal is switched. ; The first codec rate is the codec rate determined to be used after the first TC and the second TC establish a cascade-free codec TFO connection, and the second TC is used to process the voice data of the second terminal, described The second terminal is a counterpart terminal that maintains a voice call service with the first terminal.

14. A voice communication device, characterized in that it includes:

The acquisition module is used to acquire the configuration information of the first codec TC and the configuration information of the third TC, wherein the first TC is used to process the voice data of the first terminal before the first terminal switches, so The third TC is used to process the voice data of the first terminal after the first terminal is switched; a sending module is used to send the configuration information of the third TC obtained by the acquisition module to the first TC , so that before the first terminal switches, when the first TC determines that the configuration information of the first TC and the configuration information of the third TC are the same, the first TC and the second TC adopt The first codec rate maintains the cascade-free codec TFO connection; wherein the first codec rate is the codec rate determined to be used after the first TC and the second TC establish the cascade-free codec TFO connection, The second TC is used to process voice data of a second terminal, and the second terminal is the opposite terminal that maintains voice call service with the first terminal;

The sending module is also configured to send the configuration information of the first codec TC to the third TC, so that after the first terminal switching is completed, the third TC determines that the first TC When the configuration information of is the same as the configuration information of the third TC, the third TC directly uses the first codec rate to establish a cascade-free codec TFO connection with the second TC.

15. The device according to claim 14, wherein the acquisition module includes: a receiving unit configured to receive the configuration information of the first TC sent by the first TC through a signaling channel, and through a signaling channel Let the channel receive the configuration information of the third TC sent by the third TC.

16. The apparatus according to claim 14 or 15, wherein the acquisition module is specifically configured to receive the configuration information of the first TC sent by the base station controller BSC corresponding to the first TC.

17. The device according to any one of claims 14 to 16, wherein the sending module is specifically configured to send the configuration information of the third TC to the first terminal before the handover occurs. The BSC corresponding to the first TC transmits the configuration information of the third TC through the BSC corresponding to the first TC. Information is sent to the first TC.

18. A voice communication device, characterized in that it includes:

The acquisition module is used to acquire the configuration information of the first codec TC and the configuration information of the third TC, wherein the first TC is used to process the voice data of the first terminal before the first terminal switches, so The third TC is used to process the voice data of the first terminal after the first terminal is switched; the sending module is used to send the configuration information of the third TC to the first TC, so that in Before the first terminal is switched, when the first TC determines that the configuration information of the first TC and the configuration information of the third TC are the same, the first TC and the second TC adopt the first codec. The rate maintains the cascade-free codec TFO connection; wherein, the first codec rate is the codec rate determined to be used after the first TC and the second TC establish the cascade-free codec TFO connection, and the second TC The TC is used to process the voice data of the second terminal. The second terminal is the opposite terminal that maintains the voice call service with the first terminal;

The sending module is also configured to send the configuration information of the first TC to the third TC, so that after the first terminal switching is completed, the third TC determines the configuration information of the first TC. When the configuration information of the third TC is the same as that of the third TC, the third TC directly uses the first codec rate to establish a cascade-free codec TFO connection with the second TC.

19. The device according to claim 18, wherein the acquisition module includes: a receiving unit, specifically configured to receive the configuration information of the first TC sent by the first TC through a signaling channel, and through The signaling channel receives the configuration information of the third TC sent by the third TC.

20. The device according to claim 18 or 19, characterized in that the acquisition module is specifically configured to receive the configuration information of the third TC sent by the base station BSC corresponding to the third TC.

21. The device according to claim 19 or 20, wherein the sending module is specifically configured to send the configuration information of the first TC to the third TC counterpart after the first terminal is switched. The BSC of the third TC sends the configuration information of the first TC to the BSC corresponding to the third TC. Describe the third TC.

22. A voice communication device, characterized in that it includes:

The receiving module is used to receive the configuration information of the third TC sent by the base station controller BSC; the processing module is used to determine the configuration information of the third TC received by the receiving module and the configuration information of the local TC before the first terminal is switched. The configuration information is the same, and the first codec rate and the second TC are used to maintain the cascade-free codec TFO connection;

Wherein, the local TC is used to process the voice data of the first terminal before the first terminal is switched, and the third TC is used to process the voice data of the first terminal after the first terminal is switched. ; The first codec rate is the codec rate determined to be used after the local TC and the second TC establish a cascade-free codec TFO connection; the second TC is used to process the voice data of the second terminal, so The second terminal is a counterpart terminal that maintains a voice call service with the first terminal.

23. The device according to claim 22, further comprising:

A sending module, configured to send the configuration information of the local TC to the base station controller BSC corresponding to the third TC, and send the configuration information of the local TC to the third TC through the BSC corresponding to the third TC. , so that when the third TC determines that the configuration information of the third TC is the same as the configuration information of the local TC after the first terminal is switched, the third TC directly uses the third TC. A cascade-free codec TFO connection is established with the second TC at a codec rate.

24. A voice communication device, characterized in that it includes:

The receiving module is used to receive the configuration information of the first TC sent by the base station controller BSC; the processing module is used to determine the configuration information of the first TC and the local configuration information after the first terminal is switched.

The configuration information of the TC is the same, and the local TC directly uses the first codec rate to establish a cascade-free codec TFO connection with the second TC;

Wherein, the first TC is used to process the voice data of the first terminal before the first terminal is switched, and the local TC is used to process the voice data of the first terminal after the first terminal is switched. According to; the first codec rate is the codec rate determined to be used after the first TC and the second TC establish a cascade-free codec TFO connection; the second TC is used to process the voice data of the second terminal , the second terminal is a counterpart terminal that maintains a voice call service with the first terminal.

25. The device according to claim 24, further comprising:

A sending module, configured for the TC to send the configuration information of the local TC to the BSC corresponding to the first TC, and send the configuration information of the local TC to the first TC through the BSC corresponding to the first TC, so as to When the first TC determines that the configuration information of the first TC is the same as the configuration information of the local TC before the first terminal is switched, the first TC and the second TC use the The TFO connection is maintained at the first codec rate.

26. A voice communication device, characterized in that it includes:

The receiving module is configured to receive an instruction message sent by the first TC before the first terminal is switched, and use the first codec rate to maintain a cascade-free codec TFO connection with the first TC according to the instruction message, the first The codec rate is the codec rate determined to be used after the first TC and the local TC establish a cascade-free codec TFO connection;

The receiving module is also configured to receive an instruction message sent by the third TC after the first terminal is switched, and directly use the first codec rate to establish a TFO connection with the third TC according to the instruction message;

Wherein, the first TC is used to process the voice data of the first terminal before the first terminal is switched, and the third TC is used to process the voice data of the first terminal after the first terminal is switched. Data; The first codec rate is the codec rate determined to be used after the first TC and the local TC establish a cascade-free codec TFO connection, and the local TC is used to process the voice data of the second terminal, so The second terminal is a counterpart terminal that maintains a voice call service with the first terminal.

27. A base station controller BSC, characterized by including:

The receiver is used to obtain the configuration information of the first codec TC and the configuration information of the third TC, wherein , the first TC is used to process the voice data of the first terminal before the first terminal is switched, and the third TC is used to process the voice data of the first terminal after the first terminal is switched. Data; transmitter, configured to send the configuration information of the third TC obtained by the receiver to the first TC, so that the first TC determines the first TC before the first terminal switches. When the configuration information of is the same as the configuration information of the third TC, the first TC and the second TC adopt the first codec rate to maintain the cascade-free codec TFO connection; wherein, the first codec rate is The first TC and the second TC determine the adopted codec rate after establishing a cascade-free codec TFO connection. The second TC is used to process the voice data of the second terminal. The second terminal is connected to the The first terminal maintains the opposite end terminal of the voice call service;

The transmitter is also used to send the configuration information of the first codec TC to the third TC, so that after the first terminal switching is completed, the third TC determines that the first TC When the configuration information of is the same as the configuration information of the third TC, the third TC directly uses the first codec rate to establish a cascade-free codec TFO connection with the second TC.

28. The BSC according to claim 27, wherein the receiver is configured to receive the configuration information of the first TC sent by the first TC through a signaling channel, and receive the configuration information through a signaling channel. The configuration information of the third TC sent by the third TC.

29. The BSC according to claim 27 or 28, wherein the receiver is specifically configured to receive the configuration information of the first TC sent by the base station controller BSC corresponding to the first TC.

30. The BSC according to any one of claims 27-29, wherein the transmitter is specifically configured to send the configuration information of the third TC to the first terminal before the handover occurs. Shudi

- The BSC corresponding to the TC sends the configuration information of the third TC to the first TC through the BSC corresponding to the first TC.

31. A BSC, characterized by: including:

The receiver is used to obtain the configuration information of the first codec TC and the configuration information of the third TC, wherein , the first TC is used to process the voice data of the first terminal before the first terminal is switched, and the third TC is used to process the voice data of the first terminal after the first terminal is switched. Data; transmitter, configured to send the configuration information of the third TC to the first TC, so that the first TC determines the configuration information of the first TC before the first terminal switches. When the configuration information of the third TC is the same, the first TC and the second TC adopt a first codec rate to maintain the cascade-free codec TFO connection; wherein, the first codec rate is the third codec rate. A TC and a second TC determine the adopted codec rate after establishing a cascade-free codec TFO connection. The second TC is used to process the voice data of the second terminal. The second terminal is connected to the first terminal. The peer terminal that maintains voice call services;

The transmitter is also configured to send the configuration information of the first TC to the third TC, so that after the first terminal switching is completed, the third TC determines the configuration information of the first TC. When the configuration information of the third TC is the same as that of the third TC, the third TC directly uses the first codec rate to establish a cascade-free codec TFO connection with the second TC.

32. The BSC according to claim 31, wherein the receiver is configured to receive the configuration information of the first TC sent by the first TC through a signaling channel, and receive the configuration information through a signaling channel. The configuration information of the third TC sent by the third TC.

33. The BSC according to claim 31 or 32, wherein the receiver is specifically configured to receive the configuration information of the third TC sent by the base station BSC corresponding to the third TC.

34. The BSC according to claim 32 or 33, wherein the transmitter is specifically configured to send the configuration information of the first TC to the corresponding third TC after the first terminal is switched. The BSC sends the configuration information of the first TC to the third TC through the BSC corresponding to the third TC.

35. A codec TC, characterized by: including:

A receiver, configured to receive the configuration information of the third TC sent by the base station controller BSC; The processor is configured to determine that the configuration information of the third TC received by the receiver is the same as the configuration information of the local TC before the first terminal is switched, and use the first codec rate and the second TC to maintain cascade-free Codec TFO connection;

36. The TC according to claim 35, further comprising:

A transmitter, configured to send the configuration information of the local TC to the base station controller BSC corresponding to the third TC, and send the configuration information of the local TC to the third TC through the BSC corresponding to the third TC. , so that when the third TC determines that the configuration information of the third TC is the same as the configuration information of the local TC after the first terminal is switched, the third TC directly uses the first The codec rate establishes a cascade-free codec TFO connection with the second TC.

37. A codec TC, characterized by including:

A receiver, configured to receive the configuration information of the first TC sent by the base station controller BSC;

A processor configured to, after the first terminal is switched, determine that the configuration information of the first TC is the same as the configuration information of the local TC, and the local TC directly uses the first codec rate to establish a level-free connection with the second TC. Joint encoding and decoding TFO connection;

Wherein, the first TC is used to process the voice data of the first terminal before the first terminal is switched, and the local TC is used to process the voice data of the first terminal after the first terminal is switched. ; The first codec rate is the codec rate determined to be used after the first TC and the second TC establish a cascade-free codec TFO connection; The second TC is used to process the voice data of the second terminal, The second terminal is a counterpart terminal that maintains a voice call service with the first terminal.

38. The TC according to claim 37, further comprising:

A transmitter configured for the TC to send the configuration information of the local TC to the BSC corresponding to the first TC, and to send the configuration information of the local TC to the first TC through the BSC corresponding to the first TC, to When the first TC determines that the configuration information of the first TC is the same as the configuration information of the local TC before the first terminal is switched, the first TC and the second TC use the same configuration information. The TFO connection is maintained at the first codec rate.

39. A codec TC, characterized by including:

The receiver is configured to receive an instruction message sent by the first TC before the first terminal switches, and use the first codec rate to maintain the cascade-free codec TFO connection with the first TC according to the instruction message, the first The codec rate is the codec rate determined to be used after the first TC and the local TC establish a cascade-free codec TFO connection;

The receiver is further configured to receive an instruction message sent by the third TC after the first terminal is switched, and directly use the first codec rate to establish a TFO connection with the third TC according to the instruction message;

40. A voice communication system, characterized in that it includes at least the BSC according to claims 27-30, the BSC according to claims 31-34, the TC according to claims 35-36, and the TC according to claims 37-38. The TC described in claim 39.