JPH0133977B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a channel designation method for a communication device such as a base station wireless device.

Conventionally, in base station radio equipment, when a transmitter or receiver to be implemented has a synthesizer for local oscillation, a read-only memory ROM for storing channel numbers, and a control circuit, the channels of each transmitter or receiver are and the above ROM in which the fixed channel designation number of the receiver is written.
It is set according to the contents of the panel, and is performed regardless of the mounting position of the panel. However, in wireless equipment, channels are specified by the mounting position for connection with the antenna system and control system, so if the conventional channel specification method described above is used, it is impossible to specify the mounting specification specified for a certain channel. There is a risk of accidentally installing a transmitter and receiver configured on an external channel. Another problem is that when changing the mounting position, it is necessary to replace the ROM and change the control signals.

SUMMARY OF THE INVENTION An object of the present invention is to provide a channel designation method that eliminates the problems of the prior art described above, eliminates mounting errors, and facilitates maintenance of the device.

According to the present invention, a plurality of communication devices each having a means for arbitrarily setting a channel (line frequency) in response to a channel designation signal, and a channel designation signal corresponding to the mounting position of the plurality of communication devices are communicated with each other. According to the present invention, there is provided a channel designation system that includes a control circuit having means for supplying the communication devices to the communication devices, and allows channels of the plurality of communication devices to be set in accordance with their mounting positions.

More specifically, according to the present invention, in a device comprising a plurality of transmitters or receivers and a control circuit, a synthesizer for local oscillation and a
(Positive integer) When n transmitters and receivers each having a ROM for storing a channel number in which a channel designation signal of a channel is written are mounted on the device, the mth (1mn) mounting position among the mounting positions of the device l channel (1 l
By giving an address signal from the control circuit for reading a channel designation signal that can designate the synthesizer to n), the channel designation of the transmitter or receiver is not unique to the device, but is determined by the mounting position within the device. A channel designation method is obtained which is characterized in that the channel designation method is determined by

Next, the present invention will be explained in detail with reference to the drawings. FIG. 1 is a conceptual diagram of a communication device (transmitter, receiver, or both) used when implementing the present invention. FIG. 2 shows a block diagram of a device to which the channel designation method according to the present invention is applied. Note that this example considers a base station receiving device in which a maximum of 16 receivers are installed.

In Figure 1, receiver 1 has a channel designator with channel designation numbers for 16 channels written in it.
ROM2 is installed. The ROM 2 can set the synthesizer channel by sending out a signal specifying any one of the 16 channels specified by the 4-bit address signal sent to the four address lines 3. On the other hand, as shown in FIG. 2, in the wireless device 6, an address line 4 is arranged from the control circuit 5 to the mounting position of each receiver. With this configuration, the control circuit 5 sends out an address signal that can specify an arbitrary channel to the mounting position of each receiver 1.

If the receiver shown in FIG. 1 is mounted on the device shown in FIG. The designation is determined by the mounting location. This can prevent the mounted receiver from operating on channels other than those specified at the mounting position. Also, the receiver has
The channel designation numbers for all 16 channels are written in the ROM, so even when changing the panel mounting position or replacing the panel,
Can be changed without having to replace the ROM.

In summary, by applying the present invention, it is possible to prevent malfunctions caused by mounting a panel specified for another channel at a mounting position specified for a channel, and also to prevent the panel from being replaced. Frequency changes can be made very easily in case.

The above example shows a base station receiving device equipped with 16 channels, but this channel specification method can be used as a synthesizer by writing the channel numbers of all the channels installed in the device in the ROM of the transmitter and receiver. This method can be applied to all transmitting and receiving devices that specify channels using ROM for channel specification. In addition, the number of control circuits included in one device and
The number of receivers or transmitters controlled by one control circuit is arbitrary, and the range controlled by the control circuit can extend to other devices.

[Brief explanation of drawings]

FIG. 1 is a conceptual diagram showing an example of a receiver implementing the present invention, and FIG. 2 is a block diagram showing an example of a receiving apparatus to which the present invention is applied. In the figure, 1...Receiver, 2...ROM in which the designated number of 16 channels is written, 3...ROM2
An address line for specifying an address signal, 4... an address line for sending out an address signal from a control circuit, 5... a control circuit for sending an address signal, and 6... a receiving device.

Claims (1)

[Claims] 1. A plurality of transmitters or receivers each having channel designation data storage means for supplying a channel designation signal in response to an arbitrary address signal, and means for arbitrarily setting a channel in response to a channel designation signal from this storage means. and a control circuit having means capable of supplying address signals corresponding to the mounting positions of the plurality of transmitters or receivers to the transmitters or receivers, the address signals from the control circuit to A channel specification method characterized in that a channel of a transmitter or a receiver can be set according to the mounting position of the transmitter or receiver.