KR100281579B1 - Wireless communication transceiver and method for varying channel codecs according to communication channel characteristics - Google Patents

Abstract

1. TECHNICAL FIELD OF THE INVENTION

The present invention relates to a wireless communication transmitting and receiving device and a method for varying the channel codec.

2. The technical gist of the invention to solve

An object of the present invention is to provide a wireless communication transmission and reception apparatus and method for efficiently transmitting and receiving data by detecting an error generated by a change in a communication channel environment at a receiving end and varying a channel codec according to the error detection value. There is this.

3. Summary of the Solution of the Invention

The present invention provides data generating means for generating data; Data encoding means for encoding data; Transmission processing means for transmitting the encoded data; First control means for controlling the data generating means and the data encoding means; Reception processing means for receiving and demodulating data; Data decoding means for decoding the demodulated data; Error detecting means for detecting an error in the decoded data; Second control means for receiving an error value and controlling the first control means and the data decoding means; And data output means for outputting the decoded data.

4. Important uses of the invention

The present invention is used to transmit and receive data according to communication channel characteristics.

Description

Wireless communication transceiver and method for varying channel codecs according to communication channel characteristics

The present invention relates to a wireless communication transceiver and a method for varying a channel codec according to a communication channel characteristic.

In general, the most important factor in communication is the communication channel characteristic, and there is no error in the received signal unless distortion of the transmission signal occurs in the communication channel.

However, substantially, distortion occurs in the transmission signal according to the channel environment. In particular, in the case of wireless communication, not only fading and attenuation of the signal but also channel characteristics continue to change even when the user moves.

In the current transmission / reception scheme, when an error occurs in a received signal, the processing is performed in a manner of requesting retransmission of an errored data frame. If the error occurs frequently, the retransmission rate is increased and the data transmission efficiency may be very poor. Therefore, the channel coding method is used to reduce the error, but in this case, the code bit is added, so the data rate is actually transmitted. This has the disadvantage of decreasing.

FIG. 1 is a block diagram illustrating a conventional wireless communication transceiver, wherein a data generator 110, an input terminal is connected to an output terminal of the data generator 110, and an input terminal is a channel encoder 120. A transmitting end consisting of a transmitting processor 130 connected to an output terminal, a receiving processor 140 receiving a signal transmitted from the transmitting end, and an data decoding and error correction unit 150 having an input terminal connected to an output terminal of the receiving processor 140. And a receiving end including an data output unit 160 connected to an output end of the data decoding and error correction unit 170.

Referring to the operation of the conventional wireless communication transceiver having the structure as described above are as follows.

When the data generator 110 generates data for transmission to the receiver, the data encoder 120 encodes the data transmitted from the data generator 110 and outputs the data to the transmission processor 130.

In this case, an error occurs in the transmission data according to the change of the channel environment in the process of transmitting data from the transmitter to the receiver, so that the data encoder 120 of the transmitter is used for correcting the error data. An encoding function of adding data to data generated from the data generator 110 is performed.

Subsequently, the transmission processor 130 modulates the data transmitted from the data encoder 120, and then loads the modulated data on the carrier and transmits the modulated data to the receiver.

As such, the data transmitted from the transmitting end to the receiving end is demodulated by the receiving processor 140 and then transferred to the data decoding and error correcting unit 150.

Subsequently, the data decoding and error correcting unit 150 decodes the data transmitted from the reception processing unit 140 to restore the data when the data is generated from the data generating unit 110, and detects an error of the restored data. Corrects and transfers the data to the data output unit 160.

The data restored through the receiving process is output to the outside through the data output unit 160.

However, in the conventional wireless communication transmitting and receiving device as described above, by maintaining a predetermined constant channel coding scheme and coding rate irrespective of the channel characteristics, if the channel characteristics are good, the code bits added during encoding of the data encoder are Code bits were wasted by unnecessary transmission, and in particular, when the channel characteristic suddenly worsened, an error rapidly increased, resulting in a very bad transmission efficiency.

Accordingly, the present invention has been made to solve the above problems, and detects an error generated by a change in the communication channel environment at the receiving end, and adjusts the data generation rate, data encoding rate, and decoding rate according to the error detection value. It is also an object of the present invention to provide a wireless communication transmission and reception apparatus and method for efficiently transmitting and receiving data by adjusting data encoding rate, decoding rate and data modulation / demodulation rate while making data generation constant.

1 is a block diagram of a conventional wireless communication transceiver.

2 is a block diagram of an embodiment of a wireless communication transceiver for varying a channel codec according to a communication channel characteristic according to the present invention.

3 is a flowchart illustrating a wireless communication transmission and reception method for transmitting and receiving data by adjusting a data generation rate and a data coding rate according to a channel state according to the present invention.

4 is a block diagram of another embodiment of a wireless communication transceiver for varying a channel codec according to a communication channel characteristic according to the present invention;

5 is a flowchart illustrating a wireless communication transmission and reception method of transmitting and receiving data by adjusting a data coding rate and a data modulation / demodulation rate according to a channel state according to the present invention.

6 is a flowchart illustrating another embodiment of a wireless communication transmission / reception method for transmitting and receiving data by adjusting a data coding rate and a data modulation / demodulation rate according to a channel state according to the present invention.

Explanation of symbols on the main parts of the drawings

210, 410: data generator 220, 420: data encoder

230, 430: Transmission processing unit 240, 440: Transmission control unit

250 and 450: reception processing unit 260 and 460: data decoding unit

270 and 470: error detection unit 280 and 480: reception control unit

290, 490: data output section

According to an aspect of the present invention, there is provided a wireless communication transceiver for transmitting and receiving data, comprising: data generating means for generating data under control of a first control means; Data encoding means for encoding the data according to the control of the first control means; Transmission processing means for modulating and transmitting the data encoded by the data encoding means; The first control means for controlling the data generating means and the data encoding means according to the control of the second control means; Reception processing means for receiving and demodulating data from the transmission processing means; Data decoding means for decoding data demodulated by the reception processing means, according to the control of the second control means; Error detecting means for detecting an error in data decoded by the data decoding means; Second control means for receiving the error value detected by the error detecting means and controlling the first control means and the data decoding means; And data output means for correcting an error of data decoded by the data decoding means and outputting the result to the outside.

A wireless communication transmission and reception method for transmitting and receiving data, the method comprising: a first step of generating data and encoding data generated under the control of the first control means; A second step of modulating and transmitting the encoded data; A third step of receiving and demodulating the modulated data; A fourth step of detecting an error by decoding the demodulated data according to the control of the second control means; And a fifth step of outputting data and adjusting the data generation rate, data encoding rate, and data decoding rate according to whether the error detection value is equal to the predetermined minimum reference value and the maximum reference value.

According to an aspect of the present invention, there is provided a wireless communication transceiver for transmitting and receiving data, comprising: data generating means for generating data constantly; Data encoding means for encoding the data according to the control of the first control means; Transmission processing means for modulating and transmitting data encoded by the data encoding means, according to the control of the first control means; The first control means for controlling the data encoding means and the transmission processing means according to the control of the second control means; Reception processing means for receiving and demodulating data from the transmission processing means according to the control of the second control means; Data decoding means for decoding data demodulated by the reception processing means, according to the control of the second control means; Error detecting means for detecting an error in data decoded by the data decoding means; The second control means for receiving the error value detected by the error detecting means and controlling the first control means, the receiving processing means and the data decoding means; And data output means for correcting an error of data decoded by the data decoding means and outputting the result to the outside.

A wireless communication transmission and reception method for transmitting and receiving data, the method comprising: a first step of generating data and encoding data generated under the control of the first control means; A second step of modulating and transmitting the encoded data according to the control of the first control means; A third step of receiving and demodulating the modulated data according to the control of the second control means; A fourth step of detecting an error by decoding the demodulated data according to the control of the second control means; And a fifth step of outputting data and adjusting a data encoding rate, a data modulation rate, a data demodulation rate, and a data decoding rate according to whether the error detection value is equal to a predetermined minimum reference value and a maximum reference value.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to FIGS. 2 to 5.

2 is a block diagram illustrating an embodiment of a wireless communication transceiver for transmitting and receiving data by adjusting a data generation rate and a data coding rate according to a channel state according to the present invention.

As shown in FIG. 2, the apparatus for transmitting and receiving wireless communication according to an embodiment of the present invention includes a data generator 210 for generating data and a data encoding for encoding data transmitted from the data generator 210. A transmission unit 230 for modulating and transmitting the data encoded by the data encoding unit 220, and a transmission control unit 240 for controlling the data generation unit 210 and the data encoding unit 220. ), A reception processing unit 250 for receiving and demodulating data from the transmission processing unit 230, a data decoding unit 260 for decoding the data demodulated by the reception processing unit 250, and a data decoding unit 260. An error detection unit 270 for detecting an error in the data decoded by the controller, and a reception control unit for controlling the transmission control unit 240 and the data decoding unit 260 by receiving an error value detected by the error detection unit 270. 280, day And a data output unit 290 to correct the error to output to the outside of the data decoded by the decoding unit 260.

The wireless communication transmitting and receiving apparatus of the present invention is largely divided into a transmitting end for transmitting data and a receiving end for receiving data transmitted from the transmitting end.

Here, the transmitter includes a data generator 210, a data encoder 220, a transmitter processor 230, and a transmitter controller 240.

In addition, the receiving end includes a receiving processor 250, a data decoding unit 260, an error detector 270, a receiving control unit 280, and a data output unit 290.

Referring to the operation of the wireless communication transceiver according to an embodiment of the present invention having the structure as described above in detail as follows.

First, the data transmission process of the transmitter is described.

The data generator 210 provides data to the data encoder 220 under the control of the transmission controller 240. That is, when the error detection value detected by the error detecting unit 270 of the receiving end is larger than a predetermined error reference value, the transmission control unit 240 receives a control command of the receiving control unit 280 of the receiving end and receives the data generating unit 210. Reduces the data generation rate.

If the error detection value detected by the error detecting unit 270 of the receiving end is smaller than a predetermined error reference value, the transmission control unit 240 receives a control command of the receiving control unit 280 of the receiving end and receives the data generating unit 210. Increase the data rate.

The data encoder 220 encodes the data transmitted from the data generator 210 under the control of the transmission controller 240 and outputs the encoded data to the transmission processor 230.

In this case, when the data transmitted from the data generator 210 increases, the data encoding rate of the data encoder 220 should also be naturally reduced. Here, the increase in the data generation rate of the data generator 210 is the case where the error detection value detected by the error detector 270 is smaller than the predetermined error reference value, so that the transmission controller 240 of the reception controller 280 By receiving the control command, the encoding rate of the data encoding unit 220 is reduced.

If the data transmitted from the data generator 210 is reduced, the data encoding rate of the data encoder 220 should also be naturally increased. That is, the decrease in the data generation rate of the data generator 210 is a case where the error detection value detected by the error detector 270 is larger than a predetermined error reference value, so that the transmission controller 240 of the reception controller 280 The control command is input to increase the encoding rate of the data encoding unit 220.

In this case, an error occurs in the transmission data according to the change of the channel environment in the process of transmitting the data from the transmitter to the receiver, so that the data encoder 210 of the transmitter is used for correcting the error data. To perform the encoding function of adding the data of the data to the data generated from the data generator 210.

In this way, the encoded data is modulated by the transmission processor 230 and then loaded on a carrier wave to transmit the receiving end through the transmitting antenna of the transmitting end.

Next, a process of receiving data transmitted from the transmitter at the receiver will be described.

When the data having undergone the above-described transmission process is received by the receiving processor 250 through the receiving antenna of the receiving end, the data received from the transmitting end is demodulated and transmitted to the data decoding unit 260.

Subsequently, the data decoding unit 260 under the control of the reception control unit 280 decodes the data transmitted from the reception processing unit 250 and restores the data when the data generation unit 210 generates the data. 290).

At this time, if the encoding rate of the data encoding unit 220 of the data generator 210 is increased, the data decoding rate of the data decoding unit 260 should also be naturally increased. Herein, since the encoding rate of the data encoding unit 220 is increased because the error detection value detected by the error detection unit 270 is larger than a predetermined error reference value, the reception control unit 280 may use the data decoding unit 220. To increase the decoding rate.

If the encoding rate of the data encoding unit 220 is decreased, the data decoding rate of the data decoding unit 260 should be naturally reduced. That is, since the encoding rate of the data encoding unit 220 decreases when the error detection value detected by the error detection unit 270 is smaller than the predetermined error reference value, the reception control unit 280 may determine the data decoding unit 220. To reduce the decoding rate.

When the received data is decoded by the data decoding unit 260 and restored to the data generated from the data generator 210, the data output unit 290 corrects an error of the decoded data and outputs the error to the outside. .

3 is a flowchart illustrating a wireless communication transmission and reception method for transmitting and receiving data by adjusting a data generation rate and a data coding rate according to a channel state according to the present invention.

Referring to FIG. 3, when the transmission control unit 240 controls the data generation of the data generation unit 210 under the control of the reception control unit 280 (301), the data generation unit 210 converts the data into a data encoding unit ( 220) (302).

Subsequently, the transmission control unit 240 adjusts the encoding rate of the data encoding unit 220 under the control of the reception control unit 280 (303). Accordingly, the data encoding unit 220 controls the transmission control unit 240. The data transmitted from the data generator 210 is encoded and transmitted to the transmission processor 230.

In this way, the encoded data is modulated by the transmission processor 230, transmitted 305 to the reception processor 250 of the receiver, and then demodulated through the reception processor 250 and transmitted to the data decoding unit 260 ( 306).

As such, when the data transmitted from the transmitter is demodulated by the reception processor 250, the reception controller 280 adjusts the decoding rate of the data decoder 260 (307), and accordingly the data decoder 260. ) Decodes the demodulated data by the reception processor 250 under the control of the reception controller 280 and outputs the demodulated data to the error detector 270 and the data output unit 290 (308).

Next, the error detector 270 detects an error in the decoded data and transmits the error to the reception controller 280 (309).

Accordingly, the reception control unit 280 determines whether the error detection value detected by the error detection unit 270 is greater than the minimum reference value previously stored and smaller than the maximum reference value (310), so that the error detection value is smaller than the previously stored minimum reference value or If greater than the maximum reference value, the process proceeds to the data generation rate adjustment process 301, the data decoding rate adjustment process 303 and the data decoding rate adjustment process 307.

If the error detection value is larger than the preset minimum reference value and smaller than the maximum reference value, the data output unit 290 corrects and outputs an error of data output from the data decoding unit 260.

4 is a block diagram illustrating an embodiment of a wireless communication transceiver for transmitting and receiving data by adjusting a data coding rate and a data modulation / demodulation rate according to a channel state according to the present invention.

As shown in FIG. 4, the apparatus for transmitting and receiving wireless communication according to another embodiment of the present invention includes a data generator 410 for generating data at a constant time, and for encoding data transferred from the data generator 410. A data processing unit 420, a transmission processing unit 430 for modulating and transmitting the data encoded by the data encoding unit 420, and a transmission control unit for controlling the data encoding unit 420 and the transmission processing unit 430 ( 440, a reception processor 450 for receiving and demodulating data from the transmission processor 430, a data decoder 460 for decoding data demodulated by the reception processor 450, and a data decoder 460. The error detection unit 470 for detecting an error in the data decoded by the AH and the error value detected by the error detection unit 470 is received, and the transmission control unit 440, the reception processing unit 450, and the data decoding unit 460 are received. To control A reception control unit 480 and a data output unit 490 for correcting an error of data decoded by the data decoding unit 460 and outputting the result to the outside are provided.

Here, the data generator 410, the data encoder 420, the transmission processor 430, and the transmission controller 440 are transmitters for transmitting data.

In addition, the reception processor 450, the data decoder 460, the error detector 470, the reception controller 480, and the data output unit 490 are receivers for receiving data.

The operation of the wireless communication transceiver according to another embodiment of the present invention having the structure as described above will be described in detail as follows.

First, the data transmission process of the transmitter is described.

When the data generator 410 transmits the data for transmission to the receiver to the data encoder 420, the data encoder 420 is controlled by the transmission controller 440 and transmitted from the data generator 410. The data is encoded and output to the transmission processor 430.

Here, when the error detection value detected by the error detection unit 470 is larger than a predetermined error reference value, the transmission control unit 440 receives a control command of the reception control unit 480 to adjust the encoding rate of the data encoding unit 420. Is increased.

If the error detection value detected by the error detection unit 470 is smaller than a predetermined error reference value, the transmission control unit 440 receives a control command of the reception control unit 480 to set the encoding rate of the data encoding unit 420. Reduced.

Subsequently, the transmission processor 430 modulates the encoded data and loads it on a carrier to transmit the receiver through a transmit antenna of the transmitter.

At this time, if the encoding rate of the data encoding unit 420 increases, the modulation rate of the transmission processing unit 430 should naturally increase. Herein, since the encoding rate of the data encoding unit 420 is increased because the error detection value detected by the error detection unit 470 is larger than a predetermined error reference value, the transmission control unit 440 may be configured to include the reception control unit 480. The control command is input to increase the modulation rate of the transmission processor 330.

If the encoding rate of the data encoding unit 420 is reduced, the modulation rate of the transmission processing unit 430 should be naturally reduced. Herein, since the encoding rate of the data encoding unit 420 is decreased when the error detection value detected by the error detection unit 470 is smaller than a predetermined error reference value, the transmission control unit 440 may be configured to include the reception control unit 480. The control command is input to reduce the modulation rate of the transmission processor 330.

Next, a process of receiving data transmitted from the transmitter at the receiver will be described.

As described above with reference to FIG. 2, when the data having undergone such a transmission process is received through the receiving antenna of the receiving end, the receiving processing unit 450 demodulates the data received from the transmitting end and transfers the data to the data decoding unit 460. do.

Here, if the modulation rate of the transmission processing unit 430 increases, the demodulation rate of the reception processing unit 450 should naturally increase. That is, since the modulation rate of the transmission processor 430 is increased when the error detection value detected by the error detection unit 470 is larger than a predetermined error reference value, the reception control unit 480 may restore the reception processing unit 450. Increase tuning

On the other hand, when the modulation rate of the transmission processing unit 430 is decreased, since the error detection value detected by the error detection unit 470 is smaller than the predetermined error reference value, the reception control unit 480 returns the reception processing unit 450. Reduce tuning

Subsequently, under the control of the reception control unit 480, the data decoding unit 460 decodes the data demodulated by the reception processing unit 450 to restore the data generated by the data generation unit 410, and then outputs the data. The output to the unit 490 is performed.

At this time, when the demodulation rate of the reception processor 450 increases, the decoding rate of the data decoder 460 should naturally increase. That is, since the demodulation rate of the reception processing unit 450 is increased when the error detection value detected by the error detection unit 470 is larger than a predetermined error reference value, the reception control unit 480 may determine that the data decoding unit 460 is configured. Increase the decoding rate.

On the other hand, when the demodulation rate of the reception processing unit 450 is decreased, since the error detection value detected by the error detection unit 470 is smaller than a predetermined error reference value, the reception control unit 480 may determine that the data decoding unit 460 is configured to have a reduced value. Reduce the decoding rate

In this way, the data decoded at the receiving end is output to the outside after the error is corrected by the data output unit 490.

5 is a wireless communication transmission and reception method for transmitting and receiving data by adjusting a data coding rate and a data modulation / modulation rate according to a channel state when a transmission symbol rate of a signal transmitted from the transmission processing unit of FIG. 4 is not constant. It shows the detailed flow.

Referring to FIG. 5, when the data generator 410 outputs data to the data encoder 220 (501), the transmission controller 440 is controlled by the reception controller 480 of the data encoder 420. The encoding rate is adjusted (502), and the data encoder 420 encodes the data transmitted from the data generator 410 under the control of the transmission controller 440 and transmits the encoded data to the transmission processor 430 (503). .

Subsequently, the transmission controller 440 adjusts the modulation rate of the transmission processor 430 under the control of the reception controller 480, thereby modulating the data encoded by the data encoder 420, thereby modulating the data. In operation 505.

When the data is received from the transmitter, the reception controller 480 adjusts the demodulation rate of the reception processor 450 (506).

The reception processor 450 demodulates the data modulated by the transmission processor 430 under the control of the reception controller 480 and transmits the demodulated data to the data decoding unit 460 (507).

As described above, after the data transmitted from the transmitter is demodulated, the reception controller 480 adjusts the decoding rate of the data decoding unit 460 (508). Accordingly, the data decoding unit 460 receives the reception control unit 480. In operation 509, the data demodulated by the reception processor 450 is decoded and output to the error detector 470 and the data output unit 490.

In operation 510, the error detector 470 detects an error in the decoded data and transmits the error to the reception controller 480.

Accordingly, the reception control unit 480 determines whether the error detection value detected by the error detection unit 470 is larger than the preset minimum reference value and smaller than the maximum reference value (511), so that the error detection value is smaller than the preset minimum reference value, or If greater than the maximum reference value, the process proceeds to the data encoding rate adjustment process 502, the data modulation rate adjustment process 504, the data demodulation rate adjustment process 506 and the data decoding rate adjustment process 508.

If the error detection value is larger than the previously stored minimum reference value and smaller than the maximum reference value, the data output unit 490 corrects and outputs an error of data output from the data decoding unit 460 (512).

FIG. 6 is a detailed diagram illustrating a wireless communication transmission / reception method of transmitting and receiving data by adjusting a data coding rate and a data modulation / demodulation rate according to a channel state when a transmission symbol rate of a signal transmitted from the transmission processor of FIG. 4 is constant. It shows the flow.

Referring to FIG. 6, when the data generator 410 outputs data to the data encoder 220 (601), the transmission controller 440 is controlled by the reception controller 480 of the data encoder 420. The encoding rate is adjusted (602), and the data encoder 420 encodes the data transmitted from the data generator 410 under the control of the transmission controller 440 and transmits the data to the transmission processor 430 (603). .

Subsequently, the transmission control unit 440 adjusts the modulation rate of the transmission processing unit 430 under the control of the reception control unit 480 (604), and the transmission control unit 440 adjusts the modulation method of the transmission processing unit 430. (605). Accordingly, the data encoded by the data encoding unit 420 is modulated and transmitted to the receiving end (606).

As such, when data is received from the transmitter, the reception controller 480 adjusts the demodulation rate of the reception processor 450 (607), and the reception controller 480 adjusts the demodulation method of the reception processor 450. (608).

The reception processor 450 demodulates the data modulated by the transmission processor 430 under the control of the reception controller 480 and transmits the demodulated data to the data decoder 460 (609).

As such, after the data transmitted from the transmitter is demodulated, the reception controller 480 adjusts the decoding rate of the data decoder 460 (610), and accordingly, the data decoder 460 receives the reception controller 480. ) Is decoded by the reception processor 450 and output to the error detector 470 and the data output unit 490 (611).

In operation 612, the error detector 470 detects an error in the decoded data and transmits the error to the reception controller 480.

Accordingly, the reception control unit 480 determines whether the error detection value detected by the error detection unit 470 is larger than the preset minimum reference value and smaller than the maximum reference value (613), so that the error detection value is smaller than the preset minimum reference value or If greater than the maximum reference value, the data encoding rate adjustment process 602, the data modulation rate adjustment process 604, the modulation method adjustment process 606, the data demodulation rate adjustment process 607, the demodulation method adjustment process 608, and the data Proceed to the decoding rate adjustment process 610.

If the error detection value is greater than the minimum reference value stored in advance and smaller than the maximum reference value, the data output unit 490 detects an error of data output from the data decoding unit 460. The correction is made and output (614).

Although the technical idea of the present invention has been described in detail according to the above preferred embodiment, it should be noted that the above-described embodiment is for the purpose of description and not of limitation. In addition, those skilled in the art will understand that various embodiments are possible within the scope of the technical idea of the present invention.

As described above, the present invention detects an error caused by the conversion of the communication channel environment at the receiving end, and adjusts the data generating rate and data encoding rate of the transmitting end and the data decoding rate of the receiving end according to the error detection value. By adjusting the data encoding rate and data modulation rate of the transmitting end and the data decoding rate and data modulation rate of the receiving end while making the data generation constant, it is possible to prevent unnecessary waste of bits by encoding and to increase the transmission efficiency. Accordingly, there is an effect that can increase the quality of the transmitted and received signal.

Claims (15)

In the wireless communication transceiver for transmitting and receiving data, Data generating means for generating data according to the control of the first control means; Data encoding means for encoding the data according to the control of the first control means; Transmission processing means for modulating and transmitting the data encoded by the data encoding means; The first control means for controlling the data generating means and the data encoding means according to the control of the second control means; Reception processing means for receiving and demodulating data from the transmission processing means; Data decoding means for decoding data demodulated by the reception processing means, according to the control of the second control means; Error detecting means for detecting an error in data decoded by the data decoding means; Second control means for receiving the error value detected by the error detecting means and controlling the first control means and the data decoding means; And Data output means for correcting the error of the data decoded by the data decoding means to output to the outside Wireless communication transceiver for varying the channel codec according to the communication channel characteristics made, including. The method of claim 1, The first control means, If the error detection value detected by the error detection means is larger than a predetermined error reference value, the encoding rate of the data encoding means is increased in proportion to the error detection value, If the error detection value detected by the error detection means is smaller than a predetermined error reference value, the encoding rate of the data encoding means is reduced in proportion to the error detection value, The second control means, If the error detection value detected by the error detection means is larger than a predetermined error reference value, the decoding rate of the data decoding means is increased in proportion to the error detection value, If the error detection value detected by the error detection means is smaller than a predetermined detection value, the channel codec is varied according to the communication channel characteristic, characterized in that the decoding rate of the data decoding means is reduced in proportion to the error detection value. Wireless communication transceiver. The method according to claim 1 or 2, The first control means, If the error detection value detected by the error detection means is larger than a predetermined detection value, the data generation rate of the data generation means is reduced in proportion to the error detection value, If the error detection value detected by the error detection means is smaller than a predetermined detection value, the channel codec is varied according to the communication channel characteristic, wherein the data generation rate of the data generating means is increased in proportion to the error detection value. Wireless communication transceiver. In the wireless communication transmission and reception method for transmitting and receiving data, A first step of generating data and encoding data generated under the control of the first control means; A second step of modulating and transmitting the encoded data; A third step of receiving and demodulating the modulated data; A fourth step of detecting an error by decoding the demodulated data according to the control of the second control means; And A fifth step of outputting data and adjusting the data generation rate, the data encoding rate and the data decoding rate according to whether the error detection value is equal to the predetermined minimum reference value and the maximum reference value Wireless communication transmission and reception method for varying the channel codec according to the communication channel characteristics made, including. The method of claim 4, wherein The first step is, A sixth step of generating data according to the control of the first control means; And A seventh step of encoding the data according to the control of the first control means Wireless communication transmission and reception method for varying the channel codec according to the communication channel characteristics made, including. The method of claim 4, wherein The fourth step, A sixth step of decoding the demodulated data according to the control of the second control means; And Seventh Step of Detecting Errors in Decoded Data Wireless communication transmission and reception method for varying the channel codec according to the communication channel characteristics made, including. The method of claim 4, wherein The fifth step, A sixth step of determining whether the error detection value is larger than a predetermined minimum reference value and smaller than the predetermined maximum reference value; A seventh step of outputting data when the error detection value is greater than a predetermined minimum reference value and smaller than the predetermined maximum reference value as a result of the determination in the sixth step; And As a result of the determination in the sixth step, when the error detection value is smaller than the predetermined minimum reference value or larger than the predetermined maximum reference value, the eighth step of skipping to the first and fourth steps Wireless communication transmission and reception method for varying the channel codec according to the communication channel characteristics made, including. In the wireless communication transceiver for transmitting and receiving data, Data generating means for generating data constantly; Data encoding means for encoding the data according to the control of the first control means; Transmission processing means for modulating and transmitting data encoded by the data encoding means, according to the control of the first control means; The first control means for controlling the data encoding means and the transmission processing means according to the control of the second control means; Reception processing means for receiving and demodulating data from the transmission processing means according to the control of the second control means; Data decoding means for decoding data demodulated by the reception processing means, according to the control of the second control means; Error detecting means for detecting an error in data decoded by the data decoding means; The second control means for receiving the error value detected by the error detecting means and controlling the first control means, the receiving processing means and the data decoding means; And Data output means for correcting the error of the data decoded by the data decoding means to output to the outside Wireless communication transceiver for varying the channel codec according to the communication channel characteristics made, including. The method of claim 8, The first control means, If the error detection value detected by the error detection means is larger than a predetermined error reference value, the encoding rate of the data encoding means and the modulation rate of the transmission processing means are increased in proportion to the error detection value, When the error detection value detected by the error detection means is smaller than a predetermined error reference value, the encoding rate of the data encoding means and the modulation rate of the transmission processing means are reduced in proportion to the error detection value. A wireless communication transceiver for varying channel codecs according to channel characteristics. The method according to claim 8 or 9, The second control means, If the error detection value detected by the error detection means is larger than a predetermined error reference value, the decoding rate of the data decoding means and the demodulation rate of the reception processing means are increased in proportion to the error detection value, And when the error detection value detected by the error detection means is smaller than a predetermined error reference value, the decoding rate of the data decoding means and the demodulation rate of the reception processing means are reduced in proportion to the error detection value. A wireless communication transceiver for varying channel codecs according to channel characteristics. In the wireless communication transmission and reception method for transmitting and receiving data, A first step of generating data and encoding data generated under the control of the first control means; A second step of modulating and transmitting the encoded data according to the control of the first control means; A third step of receiving and demodulating the modulated data according to the control of the second control means; A fourth step of detecting an error by decoding the demodulated data according to the control of the second control means; And A fifth step of outputting data and adjusting the data encoding rate, data modulation rate, data demodulation rate and data decoding rate according to whether the error detection value is equal to the predetermined minimum reference value and the maximum reference value Wireless communication transmission and reception method for varying the channel codec according to the communication channel characteristics made, including. The method of claim 11, A sixth step of adjusting a modulation scheme for modulating the encoded data according to the control of the first control means; And A seventh step of adjusting a demodulation scheme for receiving and demodulating the modulated data according to the control of the second control means; Wireless communication transmission and reception method for varying the channel codec according to the communication channel characteristics made further comprising. The method according to claim 11 or 12, The first step is, An eighth step of generating data; And A ninth step of encoding the data according to the control of the first control means Wireless communication transmission and reception method for varying the channel codec according to the communication channel characteristics made, including. The method according to claim 11 or 12, The fourth step, An eighth step of decoding the demodulated data according to the control of the second control means; And Ninth Step of Detecting Errors in Decoded Data Wireless communication transmission and reception method for varying the channel codec according to the communication channel characteristics made, including. The method according to claim 11 or 12, The fifth step, An eighth step of determining whether the error detection value is larger than a predetermined minimum reference value and smaller than the predetermined maximum reference value; A ninth step of outputting data if the error detection value is greater than a predetermined minimum reference value and smaller than the predetermined maximum reference value as a result of the determination in the eighth step; And As a result of the determination in the eighth step, when the error detection value is smaller than the predetermined minimum reference value or larger than the predetermined maximum reference value, the tenth step of proceeding to the first to fourth steps Wireless communication transmission and reception method for varying the channel codec according to the communication channel characteristics made, including.