WO2017193315A1

WO2017193315A1 - Method and apparatus for adjusting audio coding rate

Info

Publication number: WO2017193315A1
Application number: PCT/CN2016/081774
Authority: WO
Inventors: 乔静; 朱鹏; 申东方
Original assignee: 华为技术有限公司
Priority date: 2016-05-11
Filing date: 2016-05-11
Publication date: 2017-11-16
Also published as: CN108432166A

Abstract

A method and apparatus for adjusting an audio coding rate, used to solve the problem in which audio quality of an audio signal transmitted by a terminal or a base station cannot be ensured throughout one call. During one audio data transmission process, a first base station adjusts, according to values of an audio data-related packet loss rate and transport block of a terminal, a first coding rate of the terminal to a second coding rate, wherein the first coding rate is a coding rate currently being used by the terminal; the first base station sends to the terminal the second coding rate; and the first base station receives from the terminal audio data using the second coding rate. The present invention enables a first base station to adjust, according to an audio data-related packet loss rate and transport block of a terminal, a coding rate for data transmission between the terminal and the first base station during one call, thus guaranteeing audio quality of audio signal transmission between the terminal and the first base station.

Description

Method and device for adjusting speech coding rate

Technical field

The present invention relates to the field of wireless communication technologies, and in particular, to a method and a device for adjusting a voice coding rate.

Background technique

In the prior art, after a base station determines the Adaptive Multi-Rate (AMR) coding rate used by the terminal, the terminal and the base station adopt the determined AMR coding in the current call process. Rate for data transfer.

Since the terminal is mobile, the location of the terminal is likely to change during a call. For example, when the terminal is located at the center of the cell, the terminal may use a higher AMR coding rate for voice signal transmission to ensure voice quality; but if the terminal moves from the cell center location to the cell weak coverage area during the current call, Still using a higher AMR coding rate, the packet loss rate is also higher, the average opinion value is lower, and the lower the average opinion value, the worse the voice quality. For example, when the terminal is located in the weak coverage area of the cell, the terminal may use a lower AMR encoding speed to transmit the voice signal to ensure the voice quality; but if the terminal moves from the weak coverage area of the cell to the cell center during the current call Position, still using a lower AMR coding rate, the average opinion value is lower, and the lower the average opinion value, the worse the voice quality.

It can be seen that the voice quality of the voice signal transmitted by the terminal and the base station cannot be guaranteed during a call.

Summary of the invention

The embodiment of the invention provides a method and a device for adjusting a voice coding rate, which solves the problem that the voice quality of a voice signal transmitted by a terminal and a base station cannot be guaranteed during a call.

In a first aspect, a method for adjusting a speech coding rate, the method comprising:

In a voice data transmission process, the first base station according to the packet loss rate of the terminal voice data and Transmitting a value of the block to adjust a first coding rate of the terminal to a second coding rate, where the first coding rate is a coding rate currently used by the terminal;

Transmitting, by the first base station, the second coding rate to the terminal;

The first base station receives voice data that is sent by the terminal using the second coding rate.

With reference to the first aspect, in a first possible implementation manner, the first base station adjusts a first coding rate of the terminal to a second coding rate according to a packet loss ratio of a voice data of the terminal and a value of the transmission block. ,include:

When the packet loss rate of the voice data of the terminal is less than the first threshold, and the value of the transport block is greater than the second threshold, the first base station increases the first coding rate of the terminal to the second coding rate. .

With reference to the first aspect, in a second possible implementation manner, the first base station adjusts a first coding rate of the terminal to a second coding rate according to a packet loss ratio of the voice data of the terminal and a value of the transmission block. ,include:

When the voice data of the terminal is greater than a third threshold, and the value of the transport block is less than a fourth threshold, the first base station increases the first coding rate of the terminal to a second coding rate. .

With reference to the first aspect, the first possible implementation of the first aspect, and the second possible implementation of the first aspect, in a third possible implementation, the method further includes:

When the terminal switches from the first cell covered by the first base station to the second cell covered by the second base station, the first base station sends an initial coding rate to the second base station, where the initial coding The rate is an encoding rate used by the first base station and the terminal for initial voice data transmission in the one-time voice data transmission, and the initial coding rate is used by the terminal to send voice data to the second base station.

In a second aspect, a method for adjusting a speech coding rate, the method comprising:

In a voice data transmission process, the terminal sends voice data to the first base station by using the first coding rate;

Receiving, by the terminal, a second coding rate sent by the first base station, where the second coding rate is that the first base station, according to a packet loss rate of the terminal, and a value of a transmission block, the terminal The first coding rate is adjusted;

The terminal transmits voice data to the first base station using the second coding rate.

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

Receiving, by the terminal, an initial coding rate sent by the second base station;

The terminal transmits voice data to the second base station using the initial coding rate.

In a third aspect, a base station includes:

The adjusting module, in a voice data transmission process, is configured to adjust a first coding rate of the terminal to a second coding rate according to a packet loss rate of the voice data of the terminal and a value of the transmission block, where the first The coding rate is the coding rate currently used by the terminal;

a sending module, configured to send the second encoding rate to the terminal;

And a receiving module, configured to receive voice data that is sent by the terminal by using the second encoding rate.

With reference to the third aspect, in a first possible implementation manner, the adjusting module is specifically configured to:

When the packet loss rate of the voice data of the terminal is less than the first threshold, and the value of the transport block is greater than the second threshold, the first coding rate of the terminal is increased to a second coding rate.

With reference to the third aspect, in a second possible implementation manner, the adjusting module is further configured to:

When the voice data of the terminal is greater than a third threshold, and the value of the transport block is less than a fourth threshold, the first coding rate of the terminal is increased to a second coding rate.

With reference to the third aspect, the first possible implementation manner of the third aspect, and the second possible implementation manner of the third aspect, in a third possible implementation manner, the base station further includes:

The processing module is configured to send an initial coding rate to the second base station when the terminal is switched from the first cell covered by the first base station to the second cell that is covered by the second base station, where the initial coding rate is The coding rate used by the first base station and the terminal for initial voice data transmission during the one-time voice data transmission, and the initial coding rate is used by the terminal to send voice data to the second base station.

In a fourth aspect, a terminal includes:

The first sending module is configured to send the voice data to the first base station by using the first coding rate during a voice data transmission process;

a first receiving module, configured to receive a second encoding rate sent by the first base station, where The second coding rate is obtained by the first base station adjusting the first coding rate of the terminal according to a packet loss rate of the voice data of the terminal and a value of a transport block;

And a second sending module, configured to send voice data to the first base station by using the second encoding rate.

With reference to the fourth aspect, in a first possible implementation manner, the terminal further includes:

a second receiving module, configured to receive an initial coding rate sent by the second base station;

And a third sending module, configured to send voice data to the second base station by using the initial coding rate.

In a fifth aspect, a base station includes a transceiver, and at least one processor coupled to the transceiver, wherein:

A processor for reading a program in the memory, performing the following process:

Adjusting, in a voice data transmission process, a first coding rate of the terminal to a second coding rate according to a packet loss rate of the voice data of the terminal and a value of the transmission block, where the first coding rate is the The encoding rate currently used by the terminal;

Controlling, by the transceiver, the second coding rate to the terminal;

Controlling, by the transceiver, voice data sent by the terminal using the second coding rate;

A transceiver for receiving and transmitting data under the control of a processor.

In combination with the fifth aspect, in a first possible implementation manner, the processor specifically performs the following processes:

With reference to the fifth aspect, the first possible implementation manner of the fifth aspect, and the second possible implementation manner of the fifth aspect, in a third possible implementation manner, the processor specifically performs the following processes:

When the terminal switches from the first cell covered by the first base station to the second cell covered by the second base station And transmitting, by the transceiver, an initial coding rate to the second base station, where the initial coding rate is used by the first base station and the terminal for initial voice data transmission in the one-time voice data transmission process. An encoding rate, the initial encoding rate being used by the terminal to transmit voice data to the second base station.

In a sixth aspect, a terminal includes a transceiver, and at least one processor coupled to the transceiver, wherein:

Controlling the transceiver to send voice data to the first base station;

Controlling, by the transceiver, a second coding rate sent by the first base station;

The control transceiver transmits voice data to the first base station.

In conjunction with the sixth aspect, in a first possible implementation, the processor further performs the following process:

Controlling, by the transceiver, an initial coding rate sent by the second base station;

The control transceiver transmits voice data to the second base station.

In the method and device provided by the embodiment of the present invention, in a process of voice data transmission, the first base station adjusts the first coding rate of the terminal to the second according to the packet loss rate of the voice data of the terminal and the value of the transmission block. a coding rate, wherein the first coding rate is a coding rate currently used by the terminal; the first base station transmits the second coding rate to the terminal; the first base station receives the terminal using the The second encoding rate of speech data. The first base station can adjust the rate of data transmission between the terminal and the first base station during a call according to the packet loss rate of the voice data of the terminal and the value of the transport block, thereby ensuring that the terminal and the first base station transmit the voice signal. Voice quality.

DRAWINGS

1 is a schematic diagram of a method for adjusting a speech coding rate according to an embodiment of the present invention;

2 is a schematic diagram of another method for adjusting a speech coding rate according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of another method for adjusting a voice coding rate according to an embodiment of the present invention; FIG.

FIG. 4 is a schematic diagram of still another method for adjusting a speech coding rate according to an embodiment of the present invention. Figure

FIG. 5 is a schematic diagram of a specific voice coding rate adjustment according to an embodiment of the present invention;

FIG. 6 is a schematic diagram of another specific voice coding rate adjustment according to an embodiment of the present invention; FIG.

FIG. 7 is a schematic diagram of a base station according to an embodiment of the present disclosure;

FIG. 8 is a schematic diagram of a terminal according to an embodiment of the present disclosure;

FIG. 9 is a schematic diagram of another base station according to an embodiment of the present disclosure;

FIG. 10 is a schematic diagram of another terminal according to an embodiment of the present invention.

detailed description

The embodiments of the present invention are further described in detail below with reference to the accompanying drawings. It is to be understood that the embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The embodiment of the invention provides a method for adjusting a speech coding rate. As shown in FIG. 1 , the method includes the following process:

S11. The first base station adjusts the first coding rate of the terminal to a second coding rate according to a packet loss rate of the voice data of the terminal and a value of the transmission block, where the first base station adjusts the first coding rate to the second coding rate. The coding rate is the coding rate currently used by the terminal;

S12. The first base station sends the second coding rate to the terminal.

S13. The first base station receives voice data that is sent by the terminal by using the second coding rate.

For example, the first coding rate may be a specific rate value, for example, the first coding rate is 6.6 kbit/s; or may be a number in the rate set to which the first coding rate belongs, for example, a rate set. For {6.6 kbit/s, 12.65 kbit/s, 23.85 kbit/s}, 6.6 kbit/s in the rate set can be represented by number 1, 12.65 kbit/s can be represented by number 2, and 23.85 kbit/s can be numbered 3. Said; said first coding rate can be number 1. A specific implementation form of the first coding rate is not limited in the embodiment of the present invention.

Optionally, the coding rate set may be an intersection of the first coding rate set and the pre-configured second coding rate set negotiated by the terminal and another terminal that communicates with the terminal. For example, it is assumed that two terminals communicating with each other are terminal A and terminal B, and terminal A sends a set of coding rates supported by itself to the B terminal through the core network, and terminal B sets the coding rate set supported by itself and the coding rate supported by terminal A. The intersection of the set is determined as a first set of coding rates, and the terminal B sends the first set of coding rates to the terminal A through the core network, and the core network sends the first set of coding rates to the base station; the set of coding rates may also be the first After the base station determines the terminal, it can also be defined in the protocol or standard.

In the embodiment of the present invention, the first base station adjusts the first coding rate of the terminal to the second coding rate according to the packet loss rate of the voice data of the terminal and the value of the transmission block in a voice data transmission process, where The first coding rate is a coding rate currently used by the terminal; the first base station sends the second coding rate to the terminal; and the first base station receives the terminal using the second coding rate. Voice data. The first base station can adjust the coding rate of data transmission between the terminal and the first base station during a call according to the packet loss rate of the voice data of the terminal and the value of the transport block, thereby ensuring that the terminal and the first base station are transmitting voice signals. The quality of the voice.

In an implementation, the first base station may determine, according to the packet loss rate and the number of segments of the terminal, that the terminal satisfies the rate adjustment condition; wherein, when a voice packet is segmented for transmission, the number of segments into which the voice packet is divided is The number of segments is inversely proportional to the value of the transport block. Specifically, the value of the segment number is 5 and 14. The value of the segment number may also be configured according to the needs of the user. The embodiment of the invention does not limit it.

In the implementation, in S11, the first base station adjusts the first coding rate of the terminal to the second coding rate according to the packet loss rate of the voice data of the terminal and the value of the transmission block, and includes the following two preferred implementations. the way:

In a first mode, when the packet loss rate of the voice data of the terminal is less than the first threshold, and the value of the transport block is greater than the second threshold, the first base station increases the first coding rate of the terminal to be the first Two encoding rate.

In this manner, the base station adjusts the current coding rate of the voice data transmission with the terminal by increasing the coding rate of the voice data transmission with the terminal, that is, adjusting the voice of the first base station and the terminal upward. The encoding rate of data transmission.

In this manner, it may be determined that the packet loss rate of the voice data of the terminal is less than the first threshold, and if the packet loss rate of the terminal is less than the first threshold, the content is considered to be satisfied. Adjust the condition, assuming that the number of times is set to 2, which can also be determined according to the needs of the user. In order to avoid frequent adjustment of the coding rate, when it is determined that the number of consecutively set times of packet loss is less than the first threshold, the value of the transport block is determined. When the second threshold is greater than the second threshold, the first base station performs the coding rate adjustment.

In the embodiment of the present invention, when the current coding rate of the data transmission between the base station and the terminal is different, the first threshold of the packet loss rate that needs to be met when the rate adjustment is performed may be the same or different. The value of the first threshold is not limited.

In a possible implementation manner, the coding rate of data transmission between the base station and the terminal includes multiple levels, and each level corresponds to a different coding rate. For example, the coding rate corresponding to the first level is 6.6 kbit/s, and the second level is The corresponding coding rate is 12.65 kbit/s, and the coding rate corresponding to the third level is 23.85 kbit/s.

For example, if the current coding rate of the first base station and the terminal for data transmission is 6.6 kbit/s, when the packet loss rate is determined to be less than the first threshold, and the value of the transmission block is greater than the second threshold, And determining, by the first base station, that the current coding rate of the data transmission with the terminal is 6.6 kbit/s to 12.65 kbit/s; in the embodiment of the present invention, the value is 2.5. s as a period, the packet loss rate is determined to be less than the first threshold twice, that is, the packet loss rate is less than the first threshold in two consecutive periods, wherein the first threshold may be 1%, and the value of the transport block is second. The threshold is not limited, and is determined based on the actual operation.

Manner 2, when the voice data of the terminal is greater than a third threshold, and the value of the transport block is less than a fourth threshold, the first base station reduces the first coding rate of the terminal to a first Two encoding rate.

In this manner, the base station adjusts the current coding rate of data transmission with the terminal by reducing the coding rate of data transmission with the terminal, that is, adjusting the data of the first base station and the terminal downward. The encoding rate of the transmission.

In this manner, it is possible to determine whether the packet loss rate of the voice data of the terminal is large by continuously setting the number of times. In the third threshold, if it is assumed that the packet loss rate of the voice data of the terminal is greater than the third threshold for a consecutive set of times, it is considered that the adjustment condition is satisfied, and it is assumed that the set number of times is two times, and may also be determined according to the user's needs, Avoiding frequent adjustment of the coding rate. When it is determined that the packet loss rate is set to be greater than the third threshold, and then determining that the value of the transport block is less than the fourth threshold, the first base station reduces the current data transmission with the terminal. rate.

In the embodiment of the present invention, when the current coding rate of the data transmission between the base station and the terminal is different, the third threshold of the packet loss rate that needs to be met when performing the speed reduction adjustment of the coding rate may be the same or different, and the current coding rate is assumed to be 23.85. In the embodiment of the present invention, when the kbit/s is adjusted to 12.65 kbit/s, the packet loss rate is greater than 3%, and the current coding rate is adjusted to 6.6 kbit/s. The value of the third threshold is not limited.

For example, if the current coding rate of the first base station and the terminal for data transmission is 12.65 kbit/s, the packet loss rate is determined to be greater than the third threshold, and the value of the transmission block is determined to be less than the fourth threshold. Determining that the terminal satisfies the condition that the coding rate is reduced, the first base station adjusts the current coding rate of the data transmission with the terminal to 12.65 kbit/s to 6.6 kbit/s; in the embodiment of the present invention, the value is 2.5 s. As a period, the packet loss rate is determined to be greater than the third threshold for two consecutive times, that is, the packet loss rate is greater than the third threshold for two consecutive periods, wherein the third threshold may be 8%, and the fourth threshold of the value of the transport block is not used. The limit is determined based on the actual operation.

The above implementation manner is further described by two specific embodiments;

In the first embodiment, the terminal is located in the central area of the cell, and the first base station adjusts the current coding rate of the data transmission with the terminal to 12.85 kbit/s to 23.85 kbit/s. The specific process is as shown in FIG. 2, and includes the following steps:

Step 1. The first base station determines that the current coding rate for voice data transmission with the terminal is 12.65 kbit/s.

Step 2: The first base station determines that the packet loss rate is less than the first threshold in two consecutive 2.5s periods, and determines that the value of the transport block is greater than the second threshold, and determines that the terminal satisfies the increased coding rate. condition.

Step 3: The current coding rate of the voice data transmission performed by the first base station with the terminal 12.65 kbit/s is adjusted to 23.85 kbit/s.

Step 4: The terminal performs voice data transmission with the first base station by using an adjusted coding rate of 23.85 kbit/s.

The second embodiment assumes that the terminal is located in a weak area of the cell coverage, and the first base station adjusts the current coding rate of the voice data transmission with the terminal to 23.65 kbit/s, and the specific process is as shown in FIG. :

Step 1. The first base station determines that the current coding rate for voice data transmission with the terminal is 23.85 kbit/s.

Step 2: When it is determined that the packet loss rate is greater than the third threshold in two consecutive 2.5s periods, and it is determined that the value of the transport block is greater than the fourth threshold, the condition that the terminal satisfies the reduced coding rate is determined.

Step 3: The first base station adjusts a current coding rate of 23.85 kbit/s for voice data transmission with the terminal to 12.65 kbit/s.

Step 4: The terminal performs voice data transmission with the first base station by using the adjusted coding rate of 12.65 kbit/s.

Based on any of the foregoing embodiments, if the coding rate set includes the following three coding rates, namely 6.6 kbit/s, 12.65 kbit/s, and 23.85 kbit/s, when the first base station determines that the terminal satisfies the coding rate adjustment. When the condition is adjusted, the first base station may adopt a step-by-step speed regulation, and the foregoing adjustment manner is not limited in the embodiment of the present invention.

In the embodiment of the present invention, when the terminal switches from the first cell covered by the first base station to the second cell that is covered by the second base station, the first base station sends an initial coding rate to the second base station, The initial coding rate is a coding rate used by the first base station and the terminal for initial voice data transmission in the one-time voice data transmission process, and the initial coding rate is used by the terminal to the second base station. Send voice data.

Correspondingly, after receiving the initial coding rate, the second base station adjusts a current coding rate of data transmission with the terminal to the initial coding rate.

For example, the initial coding rate sent by the first base station to the second base station may be transmitted by extending an existing message, for example, by extending the voice rate control private message transmission. The initial coding rate is also transmitted by using a newly defined message. In the embodiment of the present invention, an implementation form of a message carrying the initial coding rate is defined.

Optionally, the set of rates to which the initial rate belongs may be transmitted in the voice rate control private message that transmits the initial coding rate.

Optionally, the voice rate control private message may further transmit a voice rate control flag Flag, where the flag is used to indicate whether the second base station can perform coding rate adjustment, for example, if the flag is The DISABLE indicates that the second base station cannot perform the coding rate adjustment. If the flag is ENABLE, the second base station can perform the coding rate adjustment, and the indication can be performed in other manners. The implementation form of the flag is not limited in the present invention.

When the coding rate of the second base station and the terminal needs to be adjusted after the second base station adjusts the coding rate of the current data transmission with the terminal to the initial rate, the speed adjustment process and the first The method for adjusting the speed between the base station and the terminal is the same, and is not described in detail in the embodiment of the present invention.

Based on the same inventive concept, an embodiment of the present invention provides a rate adjustment method. As shown in FIG. 4, the method includes the following process:

S41. In a voice data transmission process, the terminal sends the voice data to the first base station by using the first coding rate.

S42. The terminal receives a second coding rate sent by the first base station, where the second coding rate is that the first base station uses a packet loss rate and a value of a transmission block according to the voice data of the terminal. Obtaining the first coding rate of the terminal;

S43. The terminal sends voice data to the first base station by using the second coding rate.

Optionally, the method further includes:

A method for adjusting a coding rate according to an embodiment of the present invention is described in detail by using an interaction process between the first base station, the second base station, and the terminal. The specific process is as shown in FIG. 5, and includes:

Step 1. The terminal sends the first voice packet to the first base station.

Step 2: The first base station determines, according to the first voice packet, that the initial coding rate is 12.65 kbit/s.

Step 3: The terminal sends a subsequent voice packet to the first base station.

Step 4: The first base station determines that the packet loss rate of the received voice packet is greater than the third threshold, and determines that the value of the transport block is smaller than the fourth threshold, and determines that the terminal satisfies the condition that the coding rate is reduced.

Step 5: The first base station adjusts the current coding rate of the data transmission with the terminal to 12.65 kbit/s to 6.6 kbit/s;

Step 6: The first base station sends a first adjustment rate request to the terminal, where the specific operation is: modifying the codec mode request CMR in the real-time transport protocol RTP, and instructing the terminal to adjust the coding rate to 6.6 kbit/s.

Step 7. The terminal receives the first adjustment rate request.

Step 8: The terminal adjusts a coding rate of 12.65 kbit/s for data transmission with the first base station to a rate of 6.6 kbit/s according to the first adjustment rate request.

Step 9. The terminal switches from the first cell covered by the first base station to the second cell covered by the second base station.

Step 10: The first base station sends the speed adjustment information used by the terminal to adjust the coding rate to the second base station.

Step 11: The second base station receives the speed regulation information used by the first base station to adjust the coding rate.

Step 12: The second base station adjusts the current coding rate of data transmission with the terminal to an initial rate of 12.65 kbit/s.

Assume that the terminal is a voice user, the rate is the AMR encoding rate, and the interaction process between the base station and the terminal is as shown in FIG.

Step 1. The voice user has a default initial AMR coding rate.

Step 2: The base station eNodeB performs the speed condition determination, that is, determines whether the voice user satisfies the upward adjustment or downward adjustment of the AMR coding rate according to the initial AMR coding rate, voice quality, and channel quality of the voice user, where the voice quality may be based on Packet loss rate judgment, channel quality can be It is judged based on the value of the transport block.

Step 3: The eNodeB instructs the voice user to perform the speed adjustment, that is, the eNodeB determines the speed control result according to step 2, and if the speed adjustment condition is met, initiates a speed adjustment request to the voice user, and the specific operation is to modify the codec mode in the real-time transmission protocol RTP. The CMR is requested to instruct the voice user to adjust the current coding rate to the target coding rate.

Step 4: The voice user responds to the speed adjustment request of the eNodeB, that is, the voice user sends the voice packet to the base station by using the adjusted AMR coding rate.

The above method processing flow can be implemented by a software program, which can be stored in a storage medium, and when the stored software program is called, the above method steps are performed.

Based on the same inventive concept, a base station provided by an embodiment of the present invention, as shown in FIG. 7, includes:

The adjusting module 71 is configured to adjust the first encoding rate of the terminal to a second encoding rate according to a packet loss rate of the voice data of the terminal and a value of the transport block in a voice data transmission process, where the An encoding rate is a coding rate currently used by the terminal;

a sending module 72, configured to send the second encoding rate to the terminal;

The receiving module 73 is configured to receive voice data that is sent by the terminal by using the second encoding rate.

Optionally, the adjusting module is specifically configured to:

Optionally, the adjusting module is further configured to:

Optionally, the base station further includes:

Based on the same inventive concept, a terminal provided by an embodiment of the present invention, as shown in FIG. 8, includes:

The first sending module 81 is configured to send voice data to the first base station by using the first coding rate during a voice data transmission process;

a first receiving module 82, configured to receive a second encoding rate sent by the first base station, where the second encoding rate is a packet loss rate and a transport block of the first base station according to voice data of the terminal a value obtained by adjusting the first coding rate of the terminal;

The second sending module 83 is configured to send voice data to the first base station by using the second encoding rate.

Optionally, the terminal further includes:

The structure and processing manner of the terminal provided by the embodiment of the present invention are described below in conjunction with the preferred hardware structure.

The structure and processing manner of the base station provided by the embodiment of the present invention are described below in conjunction with the preferred hardware structure.

In the embodiment of Figure 9, the base station includes a transceiver, and at least one processor coupled to the transceiver, wherein:

The processor 900 is configured to read a program in the memory 920 and perform the following process:

Controlling the transceiver 910 to send the second coding rate to the terminal;

Controlling the transceiver 910 to receive voice data sent by the terminal using the second coding rate;

The transceiver 910 is configured to receive and transmit data under the control of the processor 900.

In FIG. 9, the bus architecture may include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 900 and various circuits of memory represented by memory 920. The bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein. The bus interface provides an interface. Transceiver 910 can be a plurality of components, including a transmitter and a transceiver, providing means for communicating with various other devices on a transmission medium. The processor 900 is responsible for managing the bus architecture and general processing, and the memory 920 can store data used by the processor 900 in performing operations.

Optionally, the processor 900 specifically performs the following processes:

When the terminal switches from the first cell covered by the first base station to the second cell covered by the second base station, the control transceiver transmits an initial coding rate to the second base station, where the initial coding rate is The coding rate used by the first base station and the terminal for initial voice data transmission during the one-time voice data transmission, and the initial coding rate is used by the terminal to send voice data to the second base station.

In the embodiment of Figure 10, the terminal includes a transceiver, and at least one processor coupled to the transceiver, wherein:

The processor 500 is configured to read a program in the memory 520 and perform the following process:

Control transceiver 510 transmits voice data to the first base station;

Controlling the transceiver 510 to receive the second coding rate sent by the first base station;

Control transceiver 510 transmits voice data to the first base station.

The transceiver 510 is configured to receive and transmit data under the control of the processor 500.

Wherein, in FIG. 10, the bus architecture can include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 500 and various circuits of memory represented by memory 520. The bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein. The bus interface provides an interface. Transceiver 510 can be a plurality of components, including a transmitter and a receiver, providing means for communicating with various other devices on a transmission medium. For different user equipments, the user interface 530 may also be an interface capable of externally connecting the required devices, including but not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.

The processor 500 is responsible for managing the bus architecture and general processing, and the memory 520 can store data used by the processor 500 when performing operations.

Optionally, the processor 500 also performs the following processes:

Control transceiver 510 receives an initial coding rate sent by the second base station;

Control transceiver 510 transmits voice data to the second base station.

Those skilled in the art will appreciate that embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the invention can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.

The present invention has been described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (system), and computer program products according to embodiments of the invention. It should be understood that the flow can be implemented by computer program instructions Each of the processes and/or blocks in the figures and/or block diagrams, and combinations of the flows and/or blocks in the flowcharts and/or block diagrams. These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device. Means for implementing the functions specified in one or more of the flow or in a block or blocks of the flow chart.

The computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device. The apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.

These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device. The instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

While the preferred embodiment of the invention has been described, it will be understood that Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and the modifications and

It is apparent that those skilled in the art can make various modifications and variations to the invention without departing from the spirit and scope of the invention. Thus, it is intended that the present invention cover the modifications and modifications of the invention

Claims

A method for adjusting a speech coding rate, the method comprising:

In a process of voice data transmission, the first base station adjusts the first coding rate of the terminal to a second coding rate according to a packet loss rate of the voice data of the terminal and a value of the transmission block, where the first coding rate The coding rate currently used by the terminal;

Transmitting, by the first base station, the second coding rate to the terminal;

The first base station receives voice data that is sent by the terminal using the second coding rate.
The method according to claim 1, wherein the first base station adjusts the first coding rate of the terminal to a second coding rate according to a packet loss rate of the voice data of the terminal and a value of the transmission block, including :

When the packet loss rate of the voice data of the terminal is less than the first threshold, and the value of the transport block is greater than the second threshold, the first base station increases the first coding rate of the terminal to the second coding rate. .
The method according to claim 1, wherein the first base station adjusts the first coding rate of the terminal to a second coding rate according to a packet loss rate of the voice data of the terminal and a value of the transmission block, including :

When the voice data of the terminal is greater than a third threshold, and the value of the transport block is less than a fourth threshold, the first base station reduces the first coding rate of the terminal to a second coding rate. .
The method according to any one of claims 1 to 3, further comprising:

When the terminal switches from the first cell covered by the first base station to the second cell covered by the second base station, the first base station sends an initial coding rate to the second base station, where the initial coding The rate is an encoding rate used by the first base station and the terminal for initial voice data transmission in the one-time voice data transmission, and the initial coding rate is used by the terminal to send voice data to the second base station.
A method for adjusting a speech coding rate, the method comprising:

In a voice data transmission process, the terminal sends voice data to the first base station by using the first coding rate;

Receiving, by the terminal, a second coding rate sent by the first base station, where the second coding rate is that the first base station uses a packet loss rate and a value of a transmission block according to voice data of the terminal, Obtaining the first coding rate of the terminal;

The terminal transmits voice data to the first base station using the second coding rate.
The method of claim 5, further comprising:

Receiving, by the terminal, an initial coding rate sent by the second base station;

The terminal transmits voice data to the second base station using the initial coding rate.
A base station, characterized in that the base station comprises:

The adjusting module, in a voice data transmission process, is configured to adjust a first coding rate of the terminal to a second coding rate according to a packet loss rate of the voice data of the terminal and a value of the transmission block, where the first The coding rate is the coding rate currently used by the terminal;

a sending module, configured to send the second encoding rate to the terminal;

And a receiving module, configured to receive voice data that is sent by the terminal by using the second encoding rate.
The base station according to claim 7, wherein the adjustment module is specifically configured to:

When the packet loss rate of the voice data of the terminal is less than the first threshold, and the value of the transport block is greater than the second threshold, the first coding rate of the terminal is increased to a second coding rate.
The base station according to claim 7, wherein the adjustment module is further configured to:

When the voice data of the terminal is greater than a third threshold, and the value of the transport block is less than a fourth threshold, the first coding rate of the terminal is increased to a second coding rate.
The base station according to any one of claims 7 to 9, wherein the base station further comprises:

The processing module is configured to send an initial coding rate to the second base station when the terminal is switched from the first cell covered by the first base station to the second cell that is covered by the second base station, where the initial coding rate is The coding rate used by the first base station and the terminal for initial voice data transmission during the one-time voice data transmission, and the initial coding rate is used by the terminal to send voice data to the second base station.
A terminal, the terminal comprising:

The first sending module is configured to use the first encoding rate during a voice data transmission process The first base station transmits voice data;

a first receiving module, configured to receive a second encoding rate sent by the first base station, where the second encoding rate is a packet loss rate of the first base station according to voice data of the terminal, and a transport block a value obtained by adjusting the first coding rate of the terminal;

And a second sending module, configured to send voice data to the first base station by using the second encoding rate.
The terminal according to claim 11, wherein the terminal further comprises:

a second receiving module, configured to receive an initial coding rate sent by the second base station;

And a third sending module, configured to send voice data to the second base station by using the initial coding rate.