JP2001168741A - Transmission power controller and transmission power control method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To minimize the dynamic range of input/output in a radio transmitter and to control a transmission power so as to sufficiently secure the dynamic range of the transmission power required for a radio base station or the like. SOLUTION: Respective transmission data multiplied with weighting coefficients W(1)-W(m) corresponding to the transmission power for respective first - m-th transmission channel processing parts 101-103 are added in an addition part 104, the respective weighting coefficients W(1)-W(m) are added in the other addition part 124, the total sum of the transmission power is obtained and the added transmission data are normalized corresponding to the total sum of the transmission power in a normalization part 115. The transmission power of signals for which the normalized transmission data are analog- converted in a D/A conversion part 117 and then amplified in a variable amplification part 119 is detected in a detection part 122, a difference between the transmission power and the total sum of the transmission power is obtained in a comparison part 123 and the gain of the variable amplification part 119 is controlled so as to turn the difference to a prescribed value.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a code division multiplexing system (CDMA) used for digital mobile communication and the like.
The present invention relates to a transmission power control device and a transmission power control method for controlling transmission power of a base station device or the like to which the ivision Multiple Access (｝) method is applied.

[0002]

2. Description of the Related Art Conventionally, as this kind of transmission power control apparatus and transmission power control method, there is one disclosed in Japanese Patent Application Laid-Open No. 9-252266.

FIG. 14 is a block diagram showing a configuration of a conventional transmission power control device. However, it is assumed that transmission power control apparatus 1400 shown in FIG. 14 is applied to a base station apparatus of a mobile communication system.

The transmission power control device 1400 includes first to m-th
Transmission channel processing sections 1401 to 1403 and addition section 14
And a wireless transmission unit 1405. The first transmission channel processing unit 1401 includes a first spreading code generation unit 1406, a spreading unit 1407, and a multiplication unit 14.
08, and the second transmission channel processing unit 1402
Spreading code generation unit 1409, spreading unit 1410, and multiplication unit 1
411, and the m-th transmission channel processing unit 1403 includes an m-th spreading code generation unit 1412, a spreading unit 1413, and a multiplication unit 1414.

[0005] The transmission power control device 140 having such a configuration is described.
The operation of 0 will be described.

[0006] In first transmission channel processing section 1401, first transmission data 1415 transmitted to a mobile station apparatus (not shown) by spreading section 1407 is transmitted to first spreading code generation section 1406.
Are spread by the spreading code generated in step (1), and the spread data is multiplied by a weighting coefficient W (1) for setting the transmission power of the first transmission channel in the multiplication section 1408.

In second transmission channel processing section 1402, second transmission data 1416 transmitted to the mobile station apparatus by spreading section 1410 is spread by the spreading code generated by second spreading code generation section 1409, and this spread data Is the multiplier 14
At 11, the signal is multiplied by a weighting coefficient W (2) for setting the transmission power of the second transmission channel.

[0008] In the m-th transmission channel processing section 1403, the m-th transmission data 1417 transmitted to the mobile station apparatus by the spreading section 1413 is spread with the spreading code generated by the m-th spreading code generation section 1412, Is the multiplier 14
At 14, the signal is multiplied by a weighting coefficient W (m) for setting the transmission power of the m-th transmission channel.

[0009] The transmission data of the first to m-th channels after the multiplication are added (multiplexed) by an adder 1404, and then converted into an analog signal by a radio transmitter 1405.
The signal is amplified to a predetermined power, converted to a radio frequency, and transmitted to the base station device.

[0010]

However, in the conventional apparatus, the dynamic range for the addition is required by the multiplexing (addition) of the communication channels together with the dynamic range for each communication channel.
That is, there is a problem that a wide dynamic range is required of the wireless transmission unit 1405 according to an increase in the communication channel.

This is because, in order to secure the dynamic range of one communication channel, the dynamic range after addition must be larger than the dynamic range of one communication channel by the number of multiple channels.
For example, if signals having a resolution of 10 bits are added, the addition result becomes 11 bits, and the dynamic range of the addition result increases by 1 bit (3 dB).

Further, in the conventional transmission power control method, since the transmission power is merely set for each communication channel, the total transmission power cannot be controlled, and therefore, the specified maximum transmission power cannot be suppressed. There is a problem.

[0013] If the specified maximum transmission power cannot be suppressed, for example, it may interfere with other communication devices or exceed the transmission power value specified by the Radio Law.

[0014] The present invention has been made in view of the above points, and it is possible to minimize the dynamic range of input and output in a radio transmission unit, and to reduce the dynamic range of transmission power required for a radio base station and the like. A transmission power control device and a transmission power control device capable of controlling transmission power so as to ensure a sufficient amount, and capable of controlling a total transmission power of each communication channel to a specified maximum transmission power. It is an object to provide a control method.

[0015]

According to the present invention, there is provided a transmission power control apparatus comprising: first addition means for adding transmission data multiplied by a weighting coefficient corresponding to transmission power for each channel; Second adding means for obtaining the sum of the transmission powers by adding the weighting coefficients of
Normalizing means for normalizing the added transmission data from the adding means in accordance with the sum of the transmission power from the second adding means, and D / A conversion means for converting the normalized transmission data into an analog transmission signal And amplifying means for amplifying the converted transmission signal.

According to this configuration, the output of the first adding means for adding the transmission data that changes according to the number of channels is changed to the second output.
By normalizing the sum of the transmission powers obtained by the adding means, the input of the amplifying means can be made constant after the normalizing means, and the dynamic range after the normalizing means can be reduced.

In the transmission power control device according to the present invention, the transmission power control device may further include a detection unit configured to detect the power of the transmission signal amplified by the amplification unit, and a sum of the detected transmission power and the transmission power from the second addition unit. And a comparing means for calculating a difference between the gain and the gain of the amplifying means so that the difference becomes a predetermined value.

According to this configuration, the dynamic range of input and output of the amplifying means can be minimized.

The transmission power control apparatus of the present invention employs a configuration in which the above configuration further includes first generation means for generating a timing signal for synchronizing the operations of the detection means and the second addition means.

According to this configuration, the operation of detecting the transmission power by the detection means and the operation of calculating the sum of the transmission power by the second adding means are synchronized, so that the operation according to the difference between the detected transmission power and the sum of the transmission power is performed. The gain control of the amplified means can be performed more accurately.

In the transmission power control device according to the present invention, the transmission power detected by the detection means and the sum of the transmission power obtained by the addition by the second addition means are averaged, and the averaging is performed. The difference between the transmission powers obtained is obtained by the comparing means, and the gain of the amplifying means is controlled so that the difference becomes a predetermined value.

According to this configuration, the fluctuation of the transmission power for each transmission channel is averaged, whereby the control of the transmission power (control on the amplification means) can be stabilized.

In the transmission power control device according to the present invention, the transmission power control device according to the above configuration averages the transmission power detected by the detection means and the sum of the transmission power obtained by the addition by the second addition means. A configuration including a second generation means for generating a timing signal for synchronizing the operation of the comparison means is adopted.

According to this configuration, the operation of averaging the transmission power detected by the detection means and the sum of the transmission power obtained by the addition by the second addition means, respectively, Since the operation for obtaining the difference between the power and the sum of the transmission power is synchronized, the gain control of the amplifying unit according to the difference can be performed with higher accuracy.

In the transmission power control device according to the present invention, the maximum value of each of the transmission power detected by the detection means and the sum of the transmission power obtained by the addition by the second addition means is obtained, The difference between the obtained maximum values of the transmission powers is obtained by the comparing means, and the gain of the amplifying means is controlled so that the difference becomes a predetermined value.

According to this configuration, the addition result of the fluctuating transmission power and the detection result of the transmission power are compared with the maximum value, so that the control of the transmission power (control on the amplifying means) can be stabilized. .

In the transmission power control device according to the present invention, the maximum power of the transmission power detected by the detection means and the total sum of the transmission power obtained by the addition by the second addition means are obtained. And a third generating means for generating a timing signal for synchronizing the operation of the comparing means.

According to this configuration, the operation for obtaining the maximum value of the transmission power detected by the detection means and the sum of the transmission power obtained by the addition by the second addition means is performed. Since the operation for obtaining the difference between the maximum value and the sum is synchronized, the gain control of the amplifying means according to the difference can be performed more accurately.

The transmission power control device according to the present invention comprises: a first addition means for adding transmission data multiplied by a weighting factor corresponding to transmission power for each channel; and a power value for each channel. A second addition means for converting and adding the amplitude value corresponding to the power value based on the weighting coefficient for each channel, and adding the transmission data from the first addition means to the third addition means. Normalizing means for normalizing according to the added amplitude value from the adding means, D / A converting means for converting the normalized transmission data into an analog transmission signal, and amplification for amplifying the converted transmission signal Means is provided.

According to this configuration, since the normalization is performed based on the maximum value of the result of the addition of the relative amplitude, the input of the amplifying means can be made more accurate and constant, and the dynamic range can be reduced. .

In the transmission power control device according to the present invention, the transmission power control device may further include a detection unit configured to detect a power of the transmission signal amplified by the amplification unit, and the detected transmission power value and an addition power value from the second addition unit. And a comparing means for calculating a difference between the gain and the gain of the amplifying means so that the difference becomes a predetermined value.

According to this configuration, the normalization is performed based on the maximum value of the result of the addition of the relative amplitude, and the gain of the amplifying means for amplifying the normalized signal is set to the maximum value of the added transmission power of each channel. And the maximum value of the detected transmission power is controlled, so that the accuracy of the control can be improved.

In the transmission power control device according to the present invention, the maximum value of the transmission power value detected by the detection means and the maximum value of the addition power value from the second addition means are determined. The difference between the maximum values of the transmission power values is calculated by the comparing means, and the gain of the amplifying means is controlled so that the difference becomes a predetermined value.

According to this configuration, the addition result of the fluctuating transmission power and the detection result of the transmission power are compared with the maximum value, so that the control of the transmission power (control of the amplifying means) can be stabilized. .

In the transmission power control device according to the present invention, the operation of the first and second addition means and the maximum of each of the transmission power value detected by the detection means and the added power value from the second addition means are provided. A configuration is provided that includes a generation unit that generates a timing signal that synchronizes the operation of obtaining the value and the operation of the comparison unit.

According to this configuration, the operation for obtaining the maximum value of the transmission power detected by the detection means and the added transmission power obtained by the addition by the second addition means is performed. Since the operation for obtaining the difference is synchronized, the gain control of the amplifying means according to the difference can be performed more accurately.

[0037] The transmission power control apparatus of the present invention, in the above configuration, includes an average value detecting means for averaging the added transmission data from the first adding means, and the normalizing means operates according to the averaged data. In which the added transmission data from the first adding means is normalized.

According to this configuration, the addition (multiplex) signal of the first addition means is normalized according to the average value of this signal, so that the average value of the transmission signal becomes constant, so that the transmission power control is performed. Can be stabilized.

In the transmission power control apparatus according to the present invention, each transmission data multiplied by a weighting coefficient corresponding to transmission power for each channel is spread with a spreading code for each channel. Take.

According to this configuration, even when the transmission data of each channel is spread, the same operation and effect as any of the above configurations can be obtained.

The transmission power control apparatus of the present invention is a multiplexing apparatus for multiplexing transmission data of channels other than a specific channel among transmission data of each channel multiplied by a weighting coefficient corresponding to transmission power for each channel. Means, variable amplifying means for amplifying the transmission data multiplexed by this means, and multiplexing power calculation means for calculating all channel transmission power that is transmission power when multiplexing the transmission data of each channel, Power calculating means for calculating the specific transmission power that is the transmission power of the transmission data of the specific channel, and when the transmission power of all channels exceeds a set maximum transmission power set based on a predetermined value, Power comparison control means for setting the amplification degree of the variable amplification means to (set maximum transmission power-specific transmission power) / (all channel transmission power-specific transmission power) times; An adding unit for adding and multiplexing the transmission data of the channel and the transmission data of the other channel amplified by the variable amplifying unit; and a transmission unit for transmitting the transmission data multiplexed by the unit. It adopts the configuration to do.

According to this configuration, the sum of the transmission power of each communication channel can be controlled to a predetermined value.

The transmission power control device of the present invention has a configuration in the above configuration, in which the transmission data of the specific channel is data that is always transmitted at the transmission power determined by the system.

According to this configuration, when the transmission data of a specific channel is, for example, a pilot signal for defining a cell range, the role of the pilot signal is not impaired.
The sum of the transmission power of each communication channel can be controlled to a predetermined value.

In the transmission power control device of the present invention, the transmission data of each channel other than the specific channel is selected from the transmission data of each channel multiplied by the weighting coefficient corresponding to the transmission power for each channel. The present invention employs a configuration including first delay means for delaying and outputting to the multiplexing means, and second delay means for delaying the transmission data of the specific channel and outputting to the adding means.

According to this configuration, the multiplexed power calculation and the control of the amplification degree of the variable amplifying means are performed in consideration of the multiplexed power calculation and the processing delay of the power calculation by the delay of the transmission data in each delay means. Timing can be adjusted.

The base station apparatus of the present invention employs a configuration including a transmission power control device similar to any of the above configurations.

According to this configuration, the same operation and effect as any of the above configurations can be obtained in the base station apparatus.

The mobile communication system of the present invention employs a configuration including the base station apparatus having the above configuration.

According to this configuration, the same operation and effect as the above configuration can be obtained in the mobile communication system.

According to the transmission power control method of the present invention, each transmission data multiplied by a weighting factor corresponding to the transmission power for each channel is added, and the weighting factor for each channel is added to sum the transmission power. , The added transmission data is normalized according to the sum of the transmission powers, the normalized transmission data is converted into an analog transmission signal, and the converted transmission signal is amplified. , The difference between the detected transmission power and the sum of the transmission powers is obtained, and the gain of the amplification is controlled so that the difference becomes a predetermined value.

According to this method, the input of the amplifying means can be made constant after the normalizing means by normalization.
As a result, the dynamic range can be reduced, and the gain of the amplifying means is controlled so that the difference between the detected transmission power and the sum of the transmission powers becomes a predetermined value. It can be kept to a minimum.

The transmission power control method according to the present invention comprises: a first addition for adding transmission data multiplied by a weighting factor corresponding to transmission power for each channel; , And a third addition for adding an amplitude value corresponding to a power value based on the weighting coefficient for each channel, and adding transmission data obtained by the first addition. Is normalized in accordance with the added amplitude value obtained in the third addition, the normalized transmission data is converted into an analog transmission signal, the converted transmission signal is amplified, and the transmission of the amplified signal is performed. The power is detected, a difference between the detected transmission power and the added power value obtained in the second addition is obtained, and the gain of the amplification is controlled so that the difference becomes a predetermined value.

According to this method, the normalization is performed based on the maximum value of the result of the addition of the relative amplitude, and the gain of the amplifying means for amplifying the normalized signal is adjusted to the maximum value of the sum transmission power of each channel. And the maximum value of the detected transmission power is controlled, so that the accuracy of the control can be improved.

The transmission power control method of the present invention calculates the transmission power of all channels, which is the transmission power when multiplexing the transmission data of each channel multiplied by the weighting coefficient corresponding to the transmission power for each channel, and Calculating the specific transmission power that is the transmission power of the transmission data of the specific channel among the transmission data of each channel,
When the set maximum transmission power set based on a predetermined value is exceeded, the amplification degree when amplifying the transmission data of each channel other than the specific channel from each channel is set to (the set maximum transmission power). -Specific transmission power) / (Transmission power of all channels-Specific transmission power) times, and multiplexes the transmission data of the other channel and the transmission data of the specific channel, which are amplified with the amplification degree after the change, and transmits the multiplexed data. I did it.

According to this method, the sum of the transmission power of each communication channel can be controlled to a predetermined value.

[0057]

Embodiments of the present invention will be described below in detail with reference to the drawings.

(Embodiment 1) FIG.1 is a block diagram showing a configuration of a transmission power control apparatus according to Embodiment 1 of the present invention. However, the transmission power control device 100 shown in FIG.
Is applied to a base station device of a mobile communication system.

The transmission power control device 100 includes first to m-th transmission channel processing units 101 to 103, an addition unit 104,
And a wireless transmission unit 105.

Also, the first transmission channel processing unit 101
First spreading code generating section 106, spreading section 107 and multiplying section 1
08, the second transmission channel processing unit 102 includes a second spreading code generation unit 109, a spreading unit 110, and a multiplication unit 111, and the m-th transmission channel processing unit 103 includes an m-th spreading code generation unit 112, a spreading unit 113 and a multiplication unit 114.

Further, the radio transmission unit 105
5, the band limiting filter 116, and the D / A converter 117
, A modulator 118, a variable amplifier 119, and a mixer 12
0, the demultiplexer 121, the detector 122, and the comparator 123
, An adder 124, and a timing generator 125.

The first to m-th transmission channel processing units 101 to 1
03 have the same functions, and will be described as a representative of the first transmission channel processing unit 101.
07, the first transmission data 126 to be transmitted to the mobile station device (not shown) is spread by the spreading code generated by the first spreading code generation unit 106, and the spread data is transmitted by the multiplication unit 108 to the transmission power of the first transmission channel. Weighting coefficient W for setting
(1) is multiplied.

The adder 104 includes the multipliers 108 and 11
The transmission data of the first to m-th channels multiplied by 1,114 are added (multiplexed).

The adder 124 adds the weighting coefficient W (m) from the weighting coefficient W (1).

The normalizing section 115 normalizes the signal added by the adding section 104 (processing such as making the maximum value of the signal constant).

The band limiting filter 116 is used for the normalizing section 11
5 restricts the transmission bandwidth of the signal from S.5.

The D / A converter 117 converts the digital signal from the band limiting filter 116 into an analog signal.

The modulator 118 modulates an intermediate frequency or radio frequency signal with an analog transmission signal from the D / A converter 117.

The variable amplifying section 119 amplifies the gain of the transmission signal from the modulating section 118 by changing the gain according to the comparison result from the comparing section 123. That is, the sum of the transmission power is controlled.

The mixer 120 converts a signal modulated to an intermediate frequency by the modulator 118 output from the variable amplifier 119 into a radio frequency. However, the modulation unit 118
In the case where the signal is modulated to the radio frequency, the mixer 120 becomes unnecessary.

The demultiplexing section 121 demultiplexes a transmission signal output from the mixer 120 to an antenna (not shown).

The detecting section 122 detects the transmission power of the signal demultiplexed by the demultiplexing section 121.

Comparison section 123 compares the transmission power value detected by detection section 122 with the result of addition of weighting coefficients W (1) to W (m) for setting transmission power from addition section 124. This difference is output to the variable amplifier 119. That is, in the variable amplifier 119, the gain is controlled so that the difference becomes a predetermined value.

The timing generator 125 includes an adder 124
The same clock signal is generated in the detection unit 122 and the detection unit 122 to synchronize the two.

Transmission power control apparatus 100 having such a configuration
Will be described.

In the first transmission channel processing section 101,
Spreading section 107 spreads first transmission data 126 to be transmitted to the mobile station apparatus with the spreading code generated by first spreading code generating section 106, and multiplies the spread data by weighting coefficient W (1) at multiplication section 108. Is done.

In the second transmission channel processing section 102,
Spreading section 110 spreads second transmission data 127 transmitted to the mobile station apparatus with the spreading code generated by second spreading code generating section 109, and multiplies the spread data by weighting coefficient W (2) at multiplication section 111. Is done.

In the m-th transmission channel processing section 103,
Spreading section 113 spreads the m-th transmission data 128 transmitted to the mobile station apparatus with the spreading code generated by m-th spreading code generation section 112, and multiplies the spread data by weighting coefficient W (m) at multiplication section 114. Is done.

After the transmission data of the first to m-th channels after the multiplication are added by the addition unit 104, the normalization unit 11
5 is output.

The normalizing section 115 to the D / A converting section 11
7 are processed as digital signals, so that the signals are treated as amplitudes.
(1) to W (m) are values obtained by replacing the transmission power of each transmission channel with an amplitude (relative value).

On the other hand, each weighting coefficient W (1) to W (m)
Are added by the adder 124 to obtain the sum of the transmission powers of the first to m-th transmission channels.

The multiplexed signal multiplexed by adding section 104 is normalized by normalizing section 115 in accordance with the sum of the transmission power from other adding section 124. Thereby, the normalization unit 115
The input from the band limiting filter 116 to the variable amplifier 119 can be made constant, and the dynamic range can be reduced.

The output signal of the normalizing unit 115 is band-limited by the band-limiting filter 116, converted to an analog signal by the D / A converter 117, and modulated by the modulator 118 to an intermediate frequency.

The signal modulated to the intermediate frequency is amplified by the variable amplifying section 119, frequency-converted to a radio frequency by the mixer 120, and becomes a transmission signal output to the antenna via the demultiplexing section 121.

A part of the transmission signal is demultiplexed by the demultiplexer 121, and the transmission power is detected by the detector 122. The detection unit 122 and the addition unit 124 include the timing generation unit 12
Sampling operation is performed in synchronization with the signal from No. 5 and the sampling results of the detection unit 122 and the addition unit 124 are compared by the comparison unit 123, and the sampling result is variable according to the difference between the two sampling results which are the comparison results. The gain of the amplifier 119 is controlled. That is, in the variable amplifier 119, the gain is controlled so that the difference becomes a predetermined value.

As described above, according to transmission power control apparatus 100 of the first embodiment, weighting coefficients W (1) to W (m)
And a normalization unit 115 for normalizing the signals after the first to m-th channel multiplexing by the other addition units 104 in accordance with the sum of the transmission power from the addition unit 124,
Timing generator 12 that synchronizes adder 124 with detector 122 that detects the transmission power of the transmission signal to the antenna.
5 and a variable amplification unit 119 whose gain is controlled in accordance with the difference between the sampling results of the detection unit 122 and the addition unit 124 so that the difference becomes a predetermined value. The dynamic range of the output can be minimized, and the dynamic range of the transmission power required for the radio base station can be sufficiently ensured.

(Embodiment 2) FIG.2 is a block diagram showing a configuration of a transmission power control apparatus according to Embodiment 2 of the present invention. However, in the second embodiment shown in FIG. 2, portions corresponding to the respective portions of the first embodiment in FIG. 1 are denoted by the same reference numerals, and description thereof will be omitted.

The transmission power control device 200 according to the second embodiment shown in FIG.
0 is different from the detection unit 20 in the wireless transmission unit 201.
2 and the internal configuration of the adder 203 and the timing generator 2
04 is the timing signal generated.

Therefore, as described in the first embodiment, first, the first to m-th transmission channel processing sections 101 to 103 first perform the first to m-th transmission channel processing. Data 126 to 128 are spread by a spreading code, and the spread data is multiplied by multiplication sections 108, 111,
At 114, it is multiplied by the weighting coefficients W (1) to W (m).

Next, the transmission data of the first to m-th channels after the multiplication are added by the adding section 104 and then output to the normalizing section 115. On the other hand, each of the weighting coefficients W (1) to
By adding W (m) in the adding section 203, the first
The sum of the transmission powers from the transmission channel to the m-th transmission channel is obtained.

Next, the multiplexed signal multiplexed by addition section 104 is normalized by normalization section 115 in accordance with the sum of the transmission powers from the other addition section 203, and band-limiting filter 116
After the band limitation is performed by the D / A converter 117, the signal is converted into an analog signal by the D / A converter 117 and is modulated by the modulator 118 to the intermediate frequency.

Further, the signal modulated to the intermediate frequency is amplified by the variable amplifying section 119, frequency-converted to a radio frequency by the mixer 120, and becomes a transmission signal output to the antenna via the branching section 121.

A part of the transmission signal is demultiplexed by the demultiplexing unit 121, the transmission power is detected by the detection unit 202, and the difference between the detected transmission power and the sum of the transmission power from the adding unit 203 is calculated. Is obtained by the comparing section 123, and the gain of the variable amplifying section 119 is controlled such that the difference becomes a predetermined value.

Next, the internal configuration of the detection unit 202 and the addition unit 203 will be described with reference to FIG.

As shown in FIG. 3, the detector 202 comprises a detector 301, a sampling circuit 302, and an averaging circuit 3
03, and the adder 203 includes the adder 30
4 and an averaging circuit 305.

Further, the timing generating section 204 generates a first timing signal 306 to the comparing section 123,
04 to the averaging circuit 305
To the sampling circuit 30
2 and a fifth timing signal 310 to the averaging circuit 305.

Detector 301 detects transmission power, sampling circuit 302 samples transmission power detected by detector 301, and averaging circuit 303 averages transmission power sampled by sampling circuit 302. Is what you do.

The adder 304 calculates the weighting coefficients W (1) to
The averaging circuit 305 adds W (m) and averages the added weighting coefficients.

The first timing signal 306 is output from the comparator 12
3 and the second timing signal 30
7 gives the addition timing of the adder 304, the third timing signal 308 designates the time section for averaging by the averaging circuit 305, and the fourth timing signal 309 gives the sampling timing of the sampling circuit 302. , The fifth timing signal 310 specifies a time section in which the averaging circuit 303 averages. However, the first, third and fifth timing signals 306, 308 and 3
10 is the same signal as shown in FIG.

The detecting section 202 and the adding section 2 having such a configuration are described.
03 and the operation of the timing generator 204 will be described with reference to the timing chart of FIG.

First, adding section 203 sets weighting coefficient W for setting the transmission power of the first to m-th transmission channels.
(1) to W (m) are added. This addition operation is performed at the timing when the second timing signal 307 becomes “H” level in the adder 304 as shown in FIG.

The result of this addition is the second timing signal 30
7, and is output to the averaging circuit 305. The averaging circuit 305 outputs the adder 304 in the designated time section, that is, the section from “H” to “H” of the third timing signal 308.
Are averaged.

On the other hand, detector 301 detects the transmission power of the transmission signal demultiplexed by demultiplexing section 121 and outputs this detection level to sampling circuit 302. The sampling circuit 302 outputs the detection level to the fourth timing signal 30
Sample at 9. This sampling result is output to the averaging circuit 303 in synchronization with the fourth timing signal 309.

[0104] The averaging circuit 303 sets the designated time interval, that is, from “H” to “H” of the fifth timing signal 310.
Are averaged in the section of the sampling circuit 302.

The comparison section 123 compares the averaged transmission power output from the averaging circuit 303 of the detection section 202 with the sum of the averaged transmission power output from the averaging circuit 305 of the addition section 203. , The difference between the two signals is obtained by comparison in accordance with the first timing signal
Output to # 19. In the variable amplifier 119, the gain is controlled so that the difference becomes a predetermined value.

As described above, according to the transmission power control apparatus 200 of the second embodiment, the detection unit 202 includes the detector 301 for detecting the transmission power, the sampling circuit 302 for sampling the detected transmission power, And an averaging circuit 303 for averaging the sampled transmission power.
It comprises an adder 304 for adding (m) and an averaging circuit 305 for averaging the added weighting coefficients, and a difference between these averaged outputs is obtained by the comparison unit 123 and output to the variable amplification unit 119. With this configuration, the fluctuation of the transmission power for each transmission channel is averaged, whereby the control of the transmission power (the control on the variable amplifier 119) can be stabilized.

(Embodiment 3) FIG.5 is a block diagram showing a part of a configuration of a transmission power control apparatus according to Embodiment 3 of the present invention.

FIG. 5 shows a characteristic element detecting section 502, an adding section 503, and a timing generating section 504 in the transmission power control apparatus according to the third embodiment. Is the same as that of the second embodiment shown in FIG.

The detecting section 502 includes, in addition to the detector 301, a peak detecting circuit 505 for detecting peak power from the transmission power detected by the detector 301.

The addition section 503 includes, in addition to the adder 304, an addition weighting coefficient output from the adder 304, that is, a maximum value detection circuit 50 for detecting the maximum value of the sum of transmission power.
6 is provided.

The timing generator 504 is the same as that of the second embodiment.
Generates the first timing signal 306 and the second timing signal 307 described in
To the peak detection circuit 505.
And a seventh timing signal 508 is generated.

The sixth timing signal 507 is for resetting the maximum value detection circuit 506, and the seventh timing signal 508 is for resetting the peak detection circuit 505.

The detecting section 502 and the adding section 5 having such a configuration are described.
03 and the operation of the timing generator 504 will be described with reference to the timing chart of FIG.

First, adding section 503 sets weighting coefficient W for setting the transmission power of the first to m-th transmission channels.
(1) to W (m) are added. This addition operation is performed at a timing when the second timing signal 307 becomes “H” level in the adder 304 as shown in FIG.

The result of this addition is the second timing signal 30
7, and is output to the maximum value detection circuit 506. The maximum value detection circuit 506 detects the maximum value of the addition result in the designated time section, that is, in the section from “H” to “H” of the sixth timing signal 507.

On the other hand, detector 301 detects the transmission power of the transmission signal demultiplexed by demultiplexing section 121 and outputs this detection level to peak detection circuit 505. Peak detection circuit 5
05 detects the maximum value of the detection level of the detector 301 in the designated time section, that is, the section from “H” to “H” of the seventh timing signal 508.

The comparing unit 123 calculates the maximum value of the sum of the transmission power from the maximum value detecting circuit 506 and the peak detecting circuit 505.
And the maximum value of the transmission power from the first timing signal 30
6, and a difference between the two is obtained and output to the variable amplifier 119. In the variable amplifier 119, the gain is controlled so that the difference becomes a predetermined value.

As described above, according to the transmission power control apparatus of the third embodiment, adder 503 is constituted by adder 304 and maximum value detection circuit 506, and detector 502 is provided with detector 301.
And the peak detection circuit 505, the result of addition of the fluctuating transmission power and the result of detection of the transmission power transmitted to the antenna are compared with the maximum value (peak value) within a specific time. (Control for the variable amplifying unit 119) can be stabilized.

(Embodiment 4) FIG.7 is a block diagram showing a configuration of a transmission power control apparatus according to Embodiment 4 of the present invention.

The transmission power control apparatus 700 according to the fourth embodiment shown in FIG. 7 differs from the transmission power control apparatus according to the third embodiment only in the internal configuration of addition section 703 in radio transmission section 701 and the timing generation section. The timing signal generated at 704.

FIG. 8 is a block diagram showing a configuration of a detecting section and an adding section in a transmission power control apparatus according to Embodiment 4 of the present invention.

The adder 703 includes weighting coefficients W (1) to
An adder 801 that converts W (m) into a power value and adds the power value;
A maximum value detection circuit 802 for detecting the maximum value of the added power value output from the adder 801;
(1) to W (m) are added as they are, that is, an adder 803 that adds an amplitude value corresponding to the power value, and the adder 803
Value detection circuit 804 for detecting the maximum value of the added power value of
It is comprised including.

The timing generator 704 is provided in the third embodiment.
, The eighth timing signal 805 to the adder 801, the ninth timing signal 806 to the adder 803, and the second timing signal 806 to the maximum value detection circuits 802 and 804. 10
A timing signal 807 is generated.

The eighth timing signal 805 is supplied to the adder 80
1 is added, and the ninth timing signal 80
6 gives the addition timing of the adder 803, and the tenth
The timing signal 807 is output from the maximum value detection circuits 802 and 80
4 is to be reset.

The operation of the adder 703 and the timing generator 704 having such a configuration will be described with reference to the timing chart of FIG.

First, the adder 801 converts the weighting coefficients W (1) to W (m) set as relative amplitude values for setting the transmission power of the first to m-th transmission channels into power values. to add. This addition operation is performed at the timing when the eighth timing signal 805 becomes “H” level, as shown in FIG. This addition result is output to the maximum value detection circuit 802 in synchronization with the eighth timing signal 805.

The maximum value detection circuit 802 detects the maximum value of the addition result in the designated time section, that is, in the section from “H” to “H” of the tenth timing signal 807.

On the other hand, the adder 803 calculates the weighting coefficient W
(1) to W (m) are added as they are. This addition operation is performed at the timing when the ninth timing signal 806 becomes “H” level. This addition result is output to the maximum value detection circuit 804 in synchronization with the ninth timing signal 806.

The maximum value detection circuit 804 detects the maximum value of the addition result in the designated time section, that is, the section from “H” to “H” of the tenth timing signal 807, and detects the maximum value of the addition amplitude value. Is output to the normalization unit 115.

On the other hand, detector 301 detects the transmission power of the transmission signal demultiplexed by demultiplexing section 121 and outputs this detection level to peak detection circuit 505. Peak detection circuit 5
05 detects the maximum value of the detection level of the detector 301 in the designated time section, that is, the section from “H” to “H” of the seventh timing signal 508.

The comparison unit 123 compares the maximum value of the added power value from the maximum value detection circuit 802 with the maximum value of the transmission power from the peak detection circuit 505 in accordance with the first timing signal 306, thereby obtaining both values. And outputs it to the variable amplifier 119. In the variable amplifier 119, the gain is controlled so that the difference becomes a predetermined value.

As described above, according to transmission power control apparatus 700 of the fourth embodiment, weighting coefficients W (1) to W (m)
Are added to the weighting coefficients W (1) to W (1) to W
An adder 801 that adds (m) as a power value, a maximum value detection circuit 802 that detects the maximum value of the addition result and outputs the result to the comparison unit 123, and weighting coefficients W (1) to W (m).
Adder 803 for adding the value as an amplitude value corresponding to the power value
And a maximum value detection circuit 804 for detecting the maximum value of the addition result and outputting the detected value to the normalization unit 115, so that the normalization in the normalization unit 115 determines the maximum value of the addition result of the relative amplitude. The gain of the variable amplifier 119 that amplifies the normalized signal is controlled in accordance with the difference between the maximum value of the added transmission power of each channel and the maximum value of the detected transmission power of the detection unit 122. Therefore, the accuracy of the control can be improved.

(Embodiment 5) FIG.10 is a block diagram showing a configuration of a transmission power control apparatus according to Embodiment 5 of the present invention.

The difference between transmission power control apparatus 1000 of the fifth embodiment and transmission power control apparatus of the third embodiment shown in FIG.
02.

The average value detection section 1002 detects the average value of the multiplexed signal multiplexed by the addition section 104 as shown in FIG. 11, and performs the average value detection processing in a designated time section, ie, in a designated time section. As shown in FIG. 12, the operation is performed in the section from “H” to “H” of the sixth timing signal 507.

In such a configuration, first, average value detecting section 1002 detects the average value of the multiplexed signal multiplexed by adding section 104 in the section from “H” to “H” of sixth timing signal 507. Then, the average value of the detected multiplexed signals is output to normalization section 115.

The normalizing section 115 normalizes the multiplexed signal from the adding section 104 in accordance with the average value from the average value detecting section 1002, and applies this normalized signal to the band limiting filter 1.
16 is output.

[0138] Further, adding section 503 uses weighting coefficient W for setting the transmission power of the first to m-th transmission channels.
(1) to W (m) are added. This addition operation is performed at a timing when the second timing signal 307 becomes “H” level in the adder 304 as shown in FIG.

The result of this addition is the second timing signal 30
7, and is output to the maximum value detection circuit 506. The maximum value detection circuit 506 detects the maximum value of the addition result in the designated time section, that is, in the section from “H” to “H” of the sixth timing signal 507.

On the other hand, detector 301 detects the transmission power of the transmission signal demultiplexed by demultiplexing section 121 and outputs this detection level to peak detection circuit 505. Peak detection circuit 5
05 detects the maximum value of the detection level of the detector 301 in the designated time section, that is, the section from “H” to “H” of the seventh timing signal 508.

The comparing section 123 calculates the maximum value of the sum of the transmission power from the maximum value detecting circuit 506 and the peak detecting circuit 505.
And the maximum value of the transmission power from the first timing signal 30
6, and a difference between the two is obtained and output to the variable amplifier 119. In the variable amplifier 119, the gain is controlled so that the difference becomes a predetermined value.

As described above, according to transmission power control apparatus 1000 of Embodiment 5, according to the average value of the multiplexed signal detected by average value detection section 1002, the multiplexed signal of adder 104 is converted to the multiplexed signal of this signal. Since normalization is performed according to the average value, the average value of the transmission signal becomes constant, so that the control of the transmission power can be stabilized.

In the fifth embodiment, the detecting unit 50
2 and the comparison unit 123 are provided, but the variable amplification unit 119 can be directly controlled by the addition unit 503 without disposing them, and the configuration can be simplified.

In the above description, the configuration in which the variable amplifying section is provided only in the intermediate frequency band has been described. However, the configuration in which the variable amplifying section is provided only in the radio frequency band, and the variable amplifying section corresponds to the intermediate frequency band. The same applies to a configuration provided in both radio frequency bands.

Although the embodiment has been described with the transmitter configuration for performing D / A conversion and analog modulation, the transmitter configuration for obtaining a signal by D / A conversion after the digital signal is modulated to an intermediate frequency. Can be similarly implemented.

(Embodiment 6) FIG.13 is a block diagram showing a configuration of a transmission power control apparatus according to Embodiment 6 of the present invention.

The transmission power control apparatus 1300 according to the sixth embodiment shown in FIG. 13 differs from the transmission power control apparatus 100 according to the first embodiment in that
First to m-th delay units 1301 to 1303 and multiplexing unit 13
04, the variable amplifier 1305, and the multiplexed power calculator 13
06, a power calculation unit 1307, and a power comparison control unit 130
8 is provided.

The first delay section 1301 delays transmission data from the first channel multiplication section 108,
302 delays transmission data from the multiplication unit 111 of the second channel, and m-th delay unit 1303 delays transmission data from the multiplication unit 114 of the m-th channel by a predetermined amount.

However, the first to m-th delay units 1301 to 130
Reference numeral 3 is for adjusting the multiplex timing in the adder 1310 and the control timing of the variable amplifier 1305 in consideration of the processing delay of the multiplexed power calculator 1306 and the power calculator 1307 described later.

The first channel is a pilot channel for defining the size of a cell.
It is assumed that the channel is a user channel. The pilot channel is a specific channel that always transmits at a transmission power determined by the system. Hereinafter, the first channel may be referred to as a specific channel.

The multiplexing unit 1304 includes the second to m-th delay units 1
The transmission data of the second to m-th channels delayed in 302 to 1303 are multiplexed.

The multiplexed power calculation section 1306 is connected to each multiplication section 1
The transmission power (all channel transmission power) Pt when the transmission data of the first to m-th channels output from 08, 111, 114 is multiplexed.

Power calculation section 1307 calculates transmission power (specific transmission power) Ps of transmission data of the first channel output from multiplication section 108.

The power comparison control section 1308 controls the amplification of the variable amplification section 1305 according to the result of comparison between the set maximum transmission power Pm, the transmission power Pt and the transmission power Ps. However, the set maximum transmission power Pm is, for example, a specified maximum transmission power that does not interfere with other communication devices or exceed a transmission power value specified by the Radio Law.

The variable amplifying section 1305 amplifies the transmission data multiplexed by the multiplexing section 1304 according to the controlled amplification degree and outputs the amplified data to the adding section 1310.

Transmission power control apparatus 130 having such a configuration
The operation of transmission power control based on 0 will be described.

First delay section 1301 delays transmission data of a specific channel from multiplication section 108 and adds
Output to 0.

The second to m-th delay units 1302 to 1303 are
The transmission data from the multiplication units 111 to 114 of the second to m-th channels are delayed and output to the multiplexing unit 1304.

Multiplexing section 1304 outputs the delayed second
To multiplex transmission data of the m-th channel, and
Output to 05.

[0160] The multiplexed power calculation section 1306 is connected to each multiplication section 1
The transmission power Pt when multiplexing the transmission data of the specific channels and the second to m-th channels output from 08, 111, and 114 is calculated and output to the power comparison control unit 1308.

Power calculating section 1307 calculates transmission power Ps of transmission data of a specific channel output from multiplying section 108 and outputs the result to power comparison control section 1308.

The set maximum transmission power Pm, all-channel transmission power Pt, and specific transmission power Ps are input to the power comparison control unit 1308, where the control described below is performed.

If Pm ≧ Pt, the power comparison control unit 130
Numeral 8 sets the amplification degree of the variable amplifying unit 1305 to 1.

That is, since the transmission power Pt for all channels is equal to or less than the set maximum transmission power Pm, for example, it does not interfere with other communication devices or exceed the transmission power specified by the Radio Law. Therefore, the amplification degree may be controlled to 1.

In the case of such control, the multiplexing unit 13
The transmission data output from the transmission unit 04 directly passes through the variable amplification unit 1305 and is input to the addition unit 1310, where it is added (multiplexed) with the transmission data of the specific channel output from the first delay unit 1301, It is output as a transmission signal via transmission section 105.

If Pm <Pt, power comparison control unit 130
8 indicates the amplification degree of the variable amplification unit 1305 as (Pm-Ps) /
(Pt-Ps) times.

That is, since the transmission power Pt of all the channels exceeds the set maximum transmission power Pm, if the transmission is performed as it is, it may interfere with other communication devices or exceed the transmission power value specified by the Radio Law. Will be.

Therefore, the amplification is controlled by the ratio of the set maximum transmission power Pm / the transmission power Pt of all channels. However, since the specific transmission power Ps is the power of the transmission data of the specific channel always transmitted at the transmission power determined by the system, the specific transmission power Ps is calculated from the set maximum transmission power Pm and the transmission power Pt for all channels. Subtraction is performed, and the ratio of the set maximum transmission power Pm / the transmission power Pt of all channels after the subtraction is:
The degree of amplification was controlled.

In the case of such control, the multiplexing unit 13
The transmission data output from the receiver 04 is transmitted to the variable amplifying unit 1305.
Is amplified by (Pm-Ps) / (Pt-Ps) times, and then input to the addition unit 1310, where the first delay unit 130
The data is added (multiplexed) to the transmission data of the specific channel output from 1 and output as a transmission signal via the wireless transmission unit 105. The power of this transmission signal is the set maximum transmission power P
m.

Further, in any of the above control cases,
The first transmission channel, which is a specific channel, has the specified transmission power because the weighting coefficient W (1) corresponding to the transmission power is stored.

As described above, according to the transmission power control apparatus 1300 of Embodiment 6, the transmission power at the time of multiplexing the transmission data of each channel multiplied by the weighting coefficient corresponding to the transmission power for each channel is used. While calculating the transmission power of a certain channel, calculating the specific transmission power which is the transmission power of the transmission data of the specific channel among the transmission data of each channel, and setting the transmission power of all the channels based on a predetermined specified value. When the set maximum transmission power is exceeded, the amplification degree when amplifying transmission data of each channel other than the specific channel from each channel is represented by (set maximum transmission power−specific transmission power) / (all channel transmission power). -Specific transmission power)
The transmission data of the other channel and the transmission data of the specific channel amplified by the amplification factor after the change are multiplexed and transmitted.

As a result, the sum of the transmission powers of the respective communication channels can be controlled to a predetermined specified value.
The transmission power value specified by the Radio Law will not be exceeded.

In the sixth embodiment described above, the configuration in which variable amplifying sections 1305 are provided after channel multiplexing has been described. However, a configuration may be employed in which variable amplifiers 1305 are provided for the number of channels before channel multiplexing.

Further, the case where there is one specific channel has been described, but a plurality of specific channels may be used.

Further, instead of adding section 1310, radio transmitting sections 105, 201, 701,
1001 may be used.

[0176]

As described above, according to the present invention,
The dynamic range of input and output can be suppressed to a minimum in the wireless transmission unit, and the transmission power can be controlled so as to sufficiently secure the dynamic range of the transmission power required for the wireless base station and the like. By controlling the sum of the transmission powers of the respective communication channels, the maximum transmission power can be suppressed.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a transmission power control device according to Embodiment 1 of the present invention.

FIG. 2 is a block diagram showing a configuration of a transmission power control device according to Embodiment 2 of the present invention.

FIG. 3 is a block diagram showing a configuration of a detection unit and an addition unit in the transmission power control device according to the second embodiment.

FIG. 4 is a timing chart of a timing signal generated from a timing generator in a transmission power control apparatus according to Embodiment 2.

FIG. 5 is a block diagram showing a part of a configuration of a transmission power control device according to Embodiment 3 of the present invention.

FIG. 6 is a timing chart of a timing signal generated from a timing generator in a transmission power control device according to Embodiment 3.

FIG. 7 is a block diagram showing a configuration of a transmission power control apparatus according to Embodiment 4 of the present invention.

FIG. 8 is a block diagram showing a configuration of a detection unit and an addition unit in a transmission power control device according to Embodiment 4.

FIG. 9 is a timing chart of a timing signal generated from a timing generator in a transmission power control device according to Embodiment 4.

FIG. 10 is a block diagram showing a configuration of a transmission power control device according to Embodiment 5 of the present invention.

FIG. 11 is a block diagram showing a configuration of a detection unit and an addition unit in the transmission power control device according to the fifth embodiment.

FIG. 12 is a timing chart of a timing signal generated from a timing generator in the transmission power control device according to the fifth embodiment.

FIG. 13 is a block diagram showing a configuration of a transmission power control device according to Embodiment 6 of the present invention.

FIG. 14 is a block diagram showing a configuration of a conventional transmission power control device.

[Explanation of symbols]

Reference Signs List 101 first transmission channel processing unit 102 second transmission channel processing unit 103 m-th transmission channel processing unit 106 first spreading code generation unit 109 second spreading code generation unit 112 m-th spreading code generation unit 104, 124, 203, 503 703,1310
Addition section 115 normalization section 117 D / A conversion section 119 variable amplification section 122, 202, 502 detection section 123 comparison section 125, 204, 504, 704 timing generation section 1002 average value detection section W (1) to W (m) Weighting coefficients 1301 to 1303 First to m-th delay units 1304 Multiplexing unit 1305 Variable amplifying unit 1306 Multiplexed power calculation unit 1307 Power calculation unit 1308 Power comparison control unit

Claims (21)

[Claims] 1. A first method for adding transmission data multiplied by a weighting coefficient corresponding to transmission power for each channel.
Addition means, and second addition means for obtaining the sum of the transmission power by adding the weighting coefficient for each channel,
Normalization means for normalizing the added transmission data from the first addition means in accordance with the sum of the transmission power from the second addition means; and D / D for converting the normalized transmission data into an analog transmission signal. A transmission power control device comprising: A conversion means; and amplification means for amplifying the converted transmission signal. 2. A power supply system comprising: a detection unit for detecting the power of a transmission signal amplified by an amplification unit; and a comparison unit for obtaining a difference between the detected transmission power and a sum of transmission power from a second adding unit. 2. The transmission power control device according to claim 1, wherein the gain of the amplifying unit is controlled so that the difference becomes a predetermined value. 3. The transmission power control device according to claim 2, further comprising first generation means for generating a timing signal for synchronizing the operations of the detection means and the second addition means. 4. The transmission power detected by the detection means, and
The sum of the transmission power obtained by the addition by the addition means is averaged, and the difference between the averaged transmission powers is obtained by the comparison means.The gain of the amplification means is calculated so that the difference becomes a predetermined value. 3. The transmission power control device according to claim 2, wherein the control is performed. 5. The transmission power detected by the detection means, and
5. The apparatus according to claim 4, further comprising: a second generating means for generating a timing signal for synchronizing an operation for averaging the sum of the transmission powers obtained by the adding means and an operation for the comparing means. The transmission power control device according to claim 1. 6. The transmission power detected by the detection means, and
The maximum value of each of the transmission powers obtained by the addition by the addition means is obtained, and the difference between the obtained maximum values of the transmission powers is obtained by the comparison means, so that the difference becomes a predetermined value. 3. The gain of the amplifying means is controlled.
The transmission power control device according to claim 1. 7. The transmission power detected by the detection means,
And a third generating means for generating a timing signal for synchronizing the operation of obtaining the maximum value of each of the sums of the transmission powers obtained by the adding means with the operation of the comparing means. Item 7. The transmission power control device according to item 6. 8. A first method for adding transmission data multiplied by a weighting coefficient corresponding to transmission power for each channel.
Addition means, second addition means for converting the weighting coefficient for each channel into a power value and adding the power value, and third addition means for adding an amplitude value corresponding to the power value based on the weighting coefficient for each channel, Normalizing means for normalizing the added transmission data from the first addition means in accordance with the added amplitude value from the third addition means; and D / A for converting the normalized transmission data into an analog transmission signal. A transmission power control device comprising: a conversion unit; and an amplification unit that amplifies the converted transmission signal. 9. A detecting means for detecting the power of the transmission signal amplified by the amplifying means;
9. The transmission power control device according to claim 8, further comprising a comparing unit that obtains a difference from the added power value from the adding unit, wherein the gain of the amplifying unit is controlled so that the difference becomes a predetermined value. . 10. A transmission power value detected by the detection means,
A maximum value of each of the added power values from the second addition means is obtained, and a difference between the obtained maximum values of the transmission power values is obtained by the comparison means. The transmission power control device according to claim 9, wherein the transmission power control device controls a gain. 11. The operation of the first and second adding means, the operation of obtaining the maximum value of each of the transmission power value detected by the detecting means and the added power value from the second adding means, and the operation of the comparing means. 11. The transmission power control device according to claim 10, further comprising a generation unit that generates a timing signal for synchronizing the transmission power. 12. An average value detecting means for averaging the added transmission data from the first adding means, wherein the normalizing means outputs the added transmission data from the first adding means in accordance with the averaged data. 7. The method of claim 6, wherein
Or the transmission power control device according to claim 7. 13. The transmission data multiplied by a weighting coefficient corresponding to transmission power for each channel is spread with a spreading code for each channel. The transmission power control device according to any one of the above. 14. Transmission data of each channel multiplied by a weighting factor corresponding to transmission power for each channel,
Multiplexing means for multiplexing transmission data of other channels except for the specific channel, variable amplifying means for amplifying transmission data multiplexed by this means, and transmission power when multiplexing the transmission data of each channel. Multiplexed power calculation means for calculating certain channel transmission power, power calculation means for calculating specific transmission power that is transmission power of the transmission data of the specific channel, and all channel transmission power is set to a predetermined value. A power for setting the amplification factor of the variable amplifying means to (set maximum transmission power−specific transmission power) / (all channel transmission power−specific transmission power) times when the maximum transmission power set based on the set maximum transmission power is exceeded. Comparison control means, adding means for adding and multiplexing the transmission data of the specific channel and the transmission data of the other channel amplified by the variable amplification means, Transmission power control apparatus characterized by comprising a transmitting means for transmitting the duplicated transmission data, the. 15. The transmission power control apparatus according to claim 14, wherein the transmission data of the specific channel is data that is always transmitted at a transmission power determined by the system. 16. The transmission data of each channel multiplied by a weighting factor corresponding to transmission power for each channel,
A first delay unit for delaying the transmission data of the other channels other than the specific channel and outputting the transmission data to the multiplexing unit; and a second delay unit for delaying the transmission data of the specific channel and outputting the transmission data to the adding unit.
16. The transmission power control device according to claim 14, further comprising a delay unit. 17. A base station device comprising the transmission power control device according to any one of claims 1 to 16. 18. A mobile communication system comprising the base station apparatus according to claim 17. 19. Each transmission data multiplied by a weighting factor corresponding to transmission power for each channel is added, and a weighting factor for each channel is added to obtain a sum of transmission powers. Normalize the transmission data according to the sum of the transmission power, convert the normalized transmission data into an analog transmission signal, amplify the converted transmission signal, detect the transmission power of the amplified signal, A transmission power control method, wherein a difference between the detected transmission power and the sum of the transmission powers is obtained, and the gain of the amplification is controlled so that the difference becomes a predetermined value. 20. A first addition for adding each transmission data multiplied by a weighting factor corresponding to a transmission power for each channel, and a second addition for converting the weighting factor for each channel into a power value and adding them. 2 and a third addition for adding an amplitude value corresponding to a power value based on the weighting coefficient for each channel, and adding the transmission data obtained by the first addition to the third addition. Normalize according to the obtained added amplitude value, convert the normalized transmission data into an analog transmission signal, amplify the converted transmission signal,
Detecting the transmission power of the amplified signal, obtaining the difference between the detected transmission power and the added power value obtained by the second addition, and controlling the gain of the amplification so that the difference becomes a predetermined value. Transmission power control method characterized by the above-mentioned. 21. A transmission power of each channel, which is transmission power when multiplexing transmission data of each channel multiplied by a weighting factor corresponding to transmission power for each channel, and calculates transmission data of each channel. Calculate the specific transmission power which is the transmission power of the transmission data of the specific channel, and when the transmission power of all channels exceeds the set maximum transmission power set based on a predetermined value, the channel , The amplification degree when amplifying transmission data of other channels except for the specific channel is represented by (set maximum transmission power−
The transmission data is varied by a factor of (specific transmission power) / (all channel transmission power-specific transmission power), and the transmission data of the other channel and the transmission data of the specific channel are amplified and transmitted at the amplification degree after the change. A transmission power control method characterized by the above-mentioned.