JP2002335227A - Transmission parameter setting system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To set the parameters of all transmission channels only with the parameter setting operation for one channel regardless of a number of transmission channels. SOLUTION: When respective channel control circuits 3-1 to 3-N are switched to a second control mode by a mode changeover switch 1, the setting value of a transmission parameter set by a parameter setting switch 2-1 is outputted to a channel control circuit 3-1 and converted to the control information of each of partial circuits of a transmission channel ch1 corresponding to this channel control circuit 3-1, the respective partial circuits are controlled on the basis of this control information, this control information is successively outputted through a line 31 to channel control circuits 3-2 to 3-N of transmission channels ch2-chN, and the respective partial circuits corresponding to these channel control circuits 3-2 to 3-N are controlled.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transmission channel transmission parameter setting system for transmitting a signal using a plurality of carrier waves having different frequencies as transmission channels, and using the plurality of transmission channels.
The present invention relates to a transmission parameter setting system in which transmission parameters of each transmission channel can be individually set, and transmission parameters of another transmission channel can be collectively set by setting transmission parameters for an arbitrary transmission channel. .

[0002]

2. Description of the Related Art In recent years, OFDM (orthogonal frequency division multiplexing) has been used as a digital modulation system used for mobile communication, digital broadcasting, and the like. This is known as one of the multi-carrier transmission schemes for transmitting data. In such a multicarrier transmission system, guard intervals such as 1/4, 1/8 of a bit rate and an effective symbol length, and QPSK (quadrant phase shift keying) to information transmission channels using the respective carrier waves are used. 25
It is desirable to set transmission parameters corresponding to modulation methods such as 6QAM (quadrature amplitude modulation) and differential QPSK for each channel.

Conventionally, as a transmission parameter setting method of a signal transmission device that enables transmission of a signal using such a plurality of transmission channels, a transmission parameter is separately provided for each transmission channel, and transmission parameters are separately set. And a plurality of parameter setting switches, which are provided separately for each of the parameter setting switches, and which are based on the setting values set by the respective parameter setting switches. It is configured to include a plurality of channel control circuits for controlling each section circuit. In the conventional transmission parameter setting system configured as described above, whether the transmission parameters of each transmission channel are set to different values or set to the same value, each parameter setting switch is operated individually. The parameter was set.

[0004]

However, in the conventional transmission parameter setting system as described above, even if it is desired to set all the transmission channels to the same transmission parameter,
It is necessary to set parameters for each transmission channel, and it takes a lot of trouble to set the parameters, and there is a problem that this trouble increases in proportion to the number of channels. SUMMARY OF THE INVENTION An object of the present invention is to provide a transmission parameter setting system which enables parameter setting of all transmission channels only by performing parameter setting operation of one channel regardless of the number of transmission channels, thereby greatly reducing the trouble of parameter setting. To provide.

[0005]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a method of transmitting a signal using a plurality of carrier waves having different frequencies as a transmission channel and transmitting a signal using the plurality of transmission channels. A parameter setting system, wherein a plurality of parameter setting switches are separately provided corresponding to the respective transmission channels, and are separately provided corresponding to the respective parameter setting switches. A plurality of channel control circuits for controlling each section circuit corresponding to the transmission channel based on the set value set by each parameter setting switch; and each of the channel control circuits corresponding to the corresponding channel control circuit. To the set value set by the setting switch And a second control mode for controlling each of the channel control circuits to operate in common based on a set value set by the arbitrary one parameter setting switch. And a mode switching means for switching to a control mode.

In the transmission parameter setting system according to the present invention, when the mode switching means is switched to the first control mode, each of the channel control circuits is controlled by the transmission system based on a different set value set by each parameter setting switch. And controls each circuit of the receiving system.
Further, when the mode switching means is switched to the second control mode, each channel control circuit can be set to an arbitrary one.
The respective circuits of the transmission system and the reception system are controlled based on a common set value set by the two parameter setting switches. Therefore, according to the present invention, the parameters of all the transmission channels can be set only by the parameter setting operation of one channel regardless of the number of transmission channels,
The trouble of parameter setting can be largely saved.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing one embodiment of a transmission parameter setting system according to the present invention.

In FIG. 1, a transmission parameter setting system includes a mode switch (corresponding to a mode switch means) 1 and a parameter switch 2.
-1 to 2-N, channel control circuits 3-1 to 3
-N. The parameter setting switches 2-1 and 2-2
-N designates a plurality of carrier waves having different frequencies as transmission channels ch1 to chN, and each of these transmission channels ch1 to c
hN transmission parameters are set separately for each channel. The channel control circuits 3-1 to 3-N
Are provided separately for each of the transmission channels ch1 to chN, and based on the parameter setting values set by the parameter setting switches 2-1 to 2-N, each transmission channel ch
It controls each circuit of the transmission system and the reception system for each of 1 to chN.

The mode changeover switch 1 switches between setting the parameters of the transmission channels ch1 to chN individually or commonly setting the parameters of all the transmission channels ch1 to chN. A first control mode for controlling each of 3-1 to 3-N to be individually operated based on the set value set by each of the parameter setting switches 2-1 to 2-N; 1-3
−N is switched to a second control mode in which the common operation is controlled based on the set value set by one optional parameter setting switch 2-1.

Next, the operation of this embodiment configured as described above will be described. In FIG. 1, when the mode changeover switch 1 is switched to the first control mode,
The set value set by the parameter setting switch 2-1 is input to the channel control circuit 3-1 and is decoded or encoded by the channel control circuit 3-1 and converted into control information of each circuit of the transmission channel ch1. . The channel control circuit 3-1 controls each circuit of the transmission channel ch1 based on the control information. Similarly, transmission channels ch2 to ch
In each of the channels up to N, the set values set by the parameter setting switches 2-2 to 2-N are input to the channel control circuits 3-2 to 3-N, respectively.
Control information of each circuit is generated. On the basis of the control information, the channel control circuits 3-2 to 3 -N control the circuits of the respective transmission channels ch 2 to chN.

When the mode changeover switch 1 is switched to the second control mode, for example, the parameter set value set by the parameter setting switch 2-1 of the transmission channel ch1 is changed to all the transmission channels ch1 to chN.
Used commonly for In this case, the values set by the parameter setting switches 2-2 to 2-N become invalid. The set value set by the parameter setting switch 2-1 is input to the channel control circuit 3-1 and decoded or encoded by the channel control circuit 3-1 and converted into control information of each circuit of the transmission channel ch1. . The channel control circuit 3-1 controls each circuit of the transmission channel ch1 based on the control information.

Further, this control information is transmitted to the channel control circuit 3 of the transmission channel ch2 through the line 31.
-2. This channel control circuit 3
In -2, each circuit of the transmission channel ch2 is controlled based on the input control information of the transmission channel ch1, and the control information of the transmission channel ch1 is output to the channel control circuit of the next transmission channel. Thereafter, by performing the same processing, each circuit is controlled based on the control information of the transmission channel ch1 up to the channel control circuit 3-N of the transmission channel chN.

According to the above-described embodiment, when each of the channel control circuits 3-1 to 3-N is switched to the second control mode by the mode changeover switch 1, the parameter is set by the parameter setting switch 2-1. The set values of the transmission parameters are stored in the channel control circuit.
1 to the channel control circuit 3-1.
Is converted into control information of each circuit of the transmission channel ch1 corresponding to the transmission channel ch1, and the respective circuits are controlled based on the control information.
Since the signals are sequentially output to the channel control circuits 2-2 to 3-N of the hN through the line 31 to control the respective circuits corresponding to the channel control circuits 2-2 to 3-N, the output is not related to the number of transmission channels. Instead, the parameters of all the transmission channels can be set only by the parameter setting operation of one channel, and the trouble of parameter setting can be largely saved.

Next, another embodiment of the transmission parameter setting system according to the present invention will be described with reference to FIG. FIG. 2 is a block diagram showing another embodiment of the transmission parameter setting system according to the present invention. This figure 2
In FIG. 7, the same components as those in FIG. 1 are denoted by the same reference numerals, and the description of the configurations will be omitted.

FIG. 2 is different from FIG. 1 in that each channel control circuit 3-1 to 3-N and each section circuit of transmission channels ch1 to chN corresponding to each of the channel control circuits 3-1 to 3-N. When the control bus 4 for transferring data between the first and second control modes is provided, and the mode is switched to the first control mode by the mode changeover switch 1, the set values set by the respective parameter setting switches 2-1 to 2-N are set. Is input to the corresponding channel control circuits 3-1 to 3-N, decoded or encoded by the channel control circuits 3-1 to 3-N, and output to the circuits of the transmission channels ch1 to chN through the control bus 4. To control each circuit of each of the transmission channels ch1 to chN, and to control each channel. Lumpur circuit if 3-1 to 3-N is switched by the mode selector switch 1 to the second control mode, channel control circuit the setting of the transmission parameters set by the parameter setting switch 2-1 3-
1 to the channel control circuit 3-1.
Is converted into control information of each circuit of the transmission channel ch1 corresponding to the transmission channel ch1.
1 is controlled via the control bus 4 and this control information is output to the respective circuits of the transmission channels ch2 to chN corresponding to the channel control circuits 3-2-3-N via the control bus 4, and these transmission channels ch2 To chN are controlled. In the other embodiment shown in FIG. 2, the same operation and effect as in FIG. 1 can be obtained.

Each channel control circuit 3-
When 1 to 3-N are switched to the second control mode by the mode switch 1, the parameter setting switch 2-
The transfer of data between the control bus 4 and the channel control circuits 3-2 to 3 -N other than the channel control circuit 3-1 corresponding to No. 1 is prohibited.

In the present invention, all transmission channels c when each of the channel control circuits 3-1 to 3-N are switched to the second control mode by the mode changeover switch 1.
The method for commonly setting the parameters of h1 to chN is not limited to the method shown in FIGS. For example, as shown in FIG. 1, the parameter setting switch 2-1 and each of the channel control circuits 3-2-3-N
Is connected by a line indicated by a dashed line, and when each of the channel control circuits 3-1 to 3-N is switched to the second control mode by the mode changeover switch 1, a parameter setting switch is connected through a line indicated by a dashed line. The parameter setting value set in 2-1 is applied to the channel control circuit 3-
The values may be collectively set by inputting to 2 to 3-N. In this case, the line 31 shown in FIG. 1 becomes unnecessary. The channel control circuit 3-2
Setting switches 2-2 to 2-2 corresponding to .about.3-N
The setting value of -N is invalidated. A parameter setting switch used for collectively setting parameters of each transmission channel is a parameter setting switch 2-1 described in the embodiment.
It is not limited to. In the above embodiment, the OF
The transmission parameter setting of the transmission channel in DM has been described. However, the transmission parameter setting method of the present invention is not limited to this, and can be applied to all methods of transmitting signals using a plurality of transmission channels.

[0018]

As described above, according to the present invention, it is possible to set the parameters of all the transmission channels only by the parameter setting operation of one channel irrespective of the number of transmission channels, thereby greatly reducing the trouble of parameter setting. Can be omitted.

[Brief description of the drawings]

FIG. 1 is a block diagram showing one embodiment of a transmission parameter setting system according to the present invention.

FIG. 2 is a block diagram showing another embodiment of the transmission parameter setting system according to the present invention.

[Explanation of symbols]

1. Mode switch, 2-1 to 2
-N: Parameter setting switch, 3-1 to 3-N ...
Control circuit, 4 ... Control bus.

Claims (6)

[Claims] A transmission parameter setting system for a transmission channel when a plurality of carriers having different frequencies are used as transmission channels and a signal is transmitted using the plurality of transmission channels. A plurality of parameter setting switches that are separately provided and separately set transmission parameters of the transmission channel; and are separately provided corresponding to the respective parameter setting switches, based on the setting values set by the respective parameter setting switches. A plurality of channel control circuits for controlling each section circuit corresponding to the transmission channel, and each of the channel control circuits is individually operated based on a set value set by a respective parameter setting switch corresponding to the channel control circuit. 1st control mode And a mode switching means for switching to a second control mode in which each of the channel control circuits is controlled so as to be commonly operated based on a set value set by the arbitrary one parameter setting switch. A transmission parameter setting system. 2. When the respective channel control circuits are switched to the second control mode, transmission parameters for the respective channel control circuits are collectively set by the arbitrary one parameter setting switch. The transmission parameter setting system according to claim 1, wherein 3. When each of the channel control circuits is switched to the second control mode, a set value of a transmission parameter set by the arbitrary one parameter setting switch corresponds to the arbitrary one parameter setting switch. The information is output to a channel control circuit, converted into control information of each circuit corresponding to the channel control circuit, and each circuit is controlled based on the control information, and the control information corresponds to the one arbitrary parameter setting switch. 2. The transmission parameter setting system according to claim 1, wherein the transmission parameter is output to other channel control circuits other than the channel control circuit, and each circuit corresponding to the other channel control circuits is controlled based on the control information. 4. When the respective channel control circuits are switched to the second control mode, the arbitrary one of
The transmission parameter setting system according to any one of claims 1 to 3, wherein a set value by another parameter setting switch other than the one parameter setting switch is invalidated. 5. A control bus for transferring data between each of the channel control circuits and each of the circuits corresponding to each of the channel control circuits is provided.
When the mode is switched to the control mode, the set value of the transmission parameter set by the arbitrary one parameter setting switch is output to the channel control circuit corresponding to the arbitrary one parameter setting switch, and the transmission value corresponding to the channel control circuit is output. The control circuit converts the control information to control information of each circuit through the control bus based on the control information, and transfers the control information to another channel control circuit other than the channel control circuit corresponding to the one arbitrary parameter setting switch. 2. The transmission parameter setting system according to claim 1, wherein the control section outputs the signals to corresponding circuits via the control bus, and controls the circuits based on the control information. 6. When each of the channel control circuits is switched to the second control mode, the control bus is connected to another channel control circuit other than the channel control circuit corresponding to the arbitrary one parameter setting switch. 6. The transmission parameter setting system according to claim 5, wherein the transmission of said data is prohibited.