JPH02244828A - Multiple channel radio call receiver - Google Patents

Abstract

PURPOSE:To improve a service for a radio call by switching a channel receiving at present to the next channel when a switch selecting the channel to be received is operated at a state where the switch to stop information is being operated. CONSTITUTION:The subject device is provided with the switch 10b to select the channel of radio call signals transmitted from a base station in multiple channels, and the switch 10a to stop the information when its own call number is detected from the radio call signal from the base station. When the switch 10b is operated at the state where the switch 10a is being operated, the channel receiving at present is switched to the next channel. Therefore, the call signal of the channel with high electric field strength can be received, and also, since the channel can be switched by the compound operation of the switches 10a and 10b, accidental channel switching by a user can be prevented from being performed. In such a manner, it is possible to improve the service for the radio call.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a multi-channel radio paging receiver device that selectively switches and receives radio signals of a plurality of channels from a radio base station to call a user.

Conventional technology Generally speaking, this multi-channel radio call is performed by dividing one pre-allocated service area into multiple regions.
A radio base station is installed in each region, and the 7 radio base stations switch between multiple channels and transmit radio paging signals to multichannel radio paging receivers located in the region.

In this case, the Kabu 5-line base stations in adjacent service areas are each configured to transmit paging signals on channels with different frequencies in order to prevent crosstalk and interference.

This type of multi-channel radio paging device is carried by the user and used as a mobile station, and when it receives a signal of a predetermined channel from a radio base station in the No. 06 service area, it emits a buzzer, vibrates, and displays a message. The system is configured to notify the user of the incoming call.

Problems to be Solved by the Invention However, in the above multi-channel radio paging receiving device,
Since the system is configured to receive a paging signal of a predetermined channel from a radio base station located in the corresponding service area, even if the user is located in the service area, the paging signal from the radio base station will not be received. For example, if you move behind a building or underground, you will not be able to receive the call.
Therefore, there is a problem that the wireless calling service is poor.

SUMMARY OF THE INVENTION In view of the above-mentioned conventional problems, it is an object of the present invention to provide a multi-channel radio paging receiving device that can improve radio paging services.

Means for Solving the Problems In order to achieve the above object, the present invention provides a first switch for selecting channels of radio paging signals transmitted from one base station in multiple channels, and a radio paging signal from the base station. and a second switch for stopping the notification when the own call number is detected from the mobile station, and when the first switch is operated while the second switch is operated, 1 is received. The channel is switched to the next channel.

Effect: With the above configuration, the present invention can receive a calling signal of a channel with a large electric field strength, and since the channel is switched by a combined operation of the first switch and the second switch, there is no carelessness caused by the user. Channel switching can be prevented, thus improving the service of wireless calls.

EXAMPLES Hereinafter, the present invention will be described in detail with reference to the drawings. FIG. 1 is a block diagram showing an embodiment of the multi-channel radio paging receiving device according to the present invention, and FIG. 2 is an explanatory diagram showing data set in the multi-channel radio paging receiving device of FIG. 3
1 is an external view of the multi-channel radio paging receiving device shown in FIG. 1, FIG. 4 is a flowchart for explaining the operation of the multi-channel radio paging receiving device shown in FIG.
FIG. 6 is a flowchart for explaining the operation of the terminal station in FIG. 5, and FIGS. 7 and 8 are the diagrams in FIG. FIG. 9 is an explanatory diagram showing the ejection signal transmitted from the base station of FIG. 7, and FIG. 9 is an explanatory diagram of the calling signal of FIG.

First, a system in which the L7 lever multi-channel radio paging receiver is used will be described with reference to FIGS. 5 to 9.

In FIG. 5, numeral 30 is a subscriber telephone that calls the multi-channel radio paging receiving device shown in FIG. Terminal stations 331 to 333 that perform radio call control when the multi-channel radio paging receiving device is called via the terminal station 33 are installed in calling areas A1 to A3, respectively, and are bases that transmit radio paging signals under the control of the terminal station 32. It is a station.

In the terminal station 32, the calling area and the time slot for each area are set in advance for each number of each multi-channel radio paging receiving device, and as shown in FIG.
When the multi-channel radio paging receiving device is called (step 41), the pre-stored calling number, calling area, and time slot for each area are read out (step 42), and each base station 331 to 333 is called. Send a signal.

Here, the number of the receiving device is 4 as illustrated in FIG.
,000 (group (31-(b
s), allocated to be able to call up to 60,000 receiving devices in a wide coverage area with calling areas A1-A3.

Then, as shown in FIG. 8, each of the base stations 331 to 333 transmits a paging signal on a plurality of channels F1 and F2- with different frequencies in order to prevent interference and interference, and also transmits a paging signal on multiple channels F1 and F2- with different frequencies. The number of group Gl-015, which is different for each channel, is
S1.5, and as shown in FIG. 9, a frame synchronization signal and an area number indicating service area A are added to each frame and transmitted.

Incidentally, as shown in FIG. 8, in the case of another service area B, a paging signal in the same frequency band as that of service area A (channels Fl, F2 and so on) is similarly transmitted.

Next, returning to FIG. 1, the configuration of the multi-channel radio paging receiving apparatus according to the present invention will be explained.

In FIG. 1, 1 is a built-in antenna for receiving radio signals from base stations 331 to 333, 2 is a high-frequency amplification unit that amplifies the high-frequency signal received by the built-in antenna 1, and 3 is a high-frequency amplification unit 2. 5 is an intermediate frequency amplifier that amplifies the intermediate frequency signal from the mixer 4, and 6 is a signal from the intermediate frequency amplifier 5. This is a detector that detects low frequency signals from low frequency signals.

The frequency synthesizer 4 has a read-only memory (ROM) 7 in order to selectively receive multi-channel (for example, several hundred channels) wireless signals from a wireless base station for each channel.
The local oscillation frequencies for n channels stored in advance in a are output to the mixer 3 under the control of the control unit (CPU) 7, and the control unit 7 also outputs the local oscillation frequencies for n channels stored in advance to the mixer 3 as shown in FIG. Control the entire device.

1'l, OM7a, as shown in FIG. 2, n channels for receiving a calling signal, a time slot for each channel, a calling number, and a service area code are stored in advance. .

8 drives a speaker 8a under the control of the CPU 7 to emit a ringtone, and a green (R,) LED when a call is made.
This is an alert controller that causes LED 8b to blink or lights up four red LEDs 8c when a frame synchronization signal of a calling signal from a base station is not received.

9Fi, 1,C for driving the channel indicator 9a
D driver 10a is a reset switch (Rs-sw) for stopping the ringing display and buzzer sound, 10b is a channel changeover switch (CH-8W) for switching the channel of the ringing signal, and IOC is a power switch. be.

The channel changeover switch 10b, as shown in FIG.
The reset switch 10a and the power switch IOC are attached to the side of the housing and are turned on when pressed down, and the reset switch 10a and the power switch IOC have a common actuator and are attached to the top of the housing, and when the actuator is pressed down. When the reset switch 10a is not on and the actuator slides, the power is turned off, the power is turned on,
[The power source is on, and the volume of the speaker 8a is changed to three levels.

Next, the operation of the above embodiment, particularly the operation of the control section 7, will be explained with reference to FIG.

In step II shown in FIG. 4(a), all the channel numbers stored in the ring 7a are read out, the local oscillation frequency of the synthesizer 4 is controlled by the first number of these channel numbers, and the calling signal of that channel is waited. Uke receives.

In step 12, the signal from the detector 6 is decoded to detect the frame synchronization signal of the paging signal, and the area number following the frame synchronization signal is compared with the service area code stored in Rf) M7a. Determine whether or not the area is serviceable.

When the iC alarm controller 8 receives its own call number, it proceeds to step 14 and controls the iC alarm controller 8 to make the speaker 8a sound and the I and ED 8b blink.

In step 13, if the ringing time times up, or in step 15, the reset switch 1. When Oa is operated, the process advances to step 16, the call is stopped, and the process returns to step 11.

On the other hand, as shown in FIG. 4(b), in the standby state in step I, the channel changeover switch l is
ob or reset switch 1. If Oa is pressed alone, the standby mode continues in the receiving state (.

(Step 17.18), while the reset switch 10a is continuously pressed down, the channel changeover switch f-1 is turned on.
, Ob is pressed, steps 19 to 20
Then, the frequency synthesizer 4 is controlled to receive the calling signal of the frequency of the channel next to the channel stored in the ROM 7a.

In the following step 21, the signal from the detector 6 is decoded to determine whether or not a frame synchronization signal of the calling signal is detected. If the frame synchronization signal is not detected, the process branches to steps 22 and 23 and the channel is detected. "0" is displayed on the channel display 9a without indicating that it is unreceivable, and I and ED8C are blinked.

Hereinafter, each time the channel changeover switch 10b is pressed while the reset switch 10a is continuously pressed, the next channel is switched to receive the standby signal, and when a frame synchronization signal is detected, the process moves from step 23 to step 24. The channel is displayed on the channel display 9a.

7. Then, while detecting the frame synchronization signal of this channel, the channel changeover switch 1. When Ob is pressed alone, t1 T, ED without switching channels
8b blinks to notify the user of an erroneous operation.

Therefore, according to the above embodiment, the reset switch 1
If the channel switching switch 10b is pressed while 0a is being pressed continuously, the channel is switched, thereby preventing the user from accidentally switching Boo A/channel. can.

As described in detail, the present invention includes a first switch for selecting channels of radio paging signals transmitted from a base station in multiple channels, and a first switch for selecting a channel of a radio paging signal transmitted from a base station in multiple channels; and a second switch for stopping notification when a number is detected, and when the first switch is operated while the second switch is operated, the channel being received is switched to the next one. Since I switched to the channel,
It is possible to receive a calling signal of a channel with a large electric field strength, and since the channel is switched by a combined operation of the first switch and the second switch, it is possible to prevent the user from accidentally switching channels! : and therefore, it is possible to provide wireless paging services.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an embodiment of the multi-channel radio paging receiving device according to the present invention, and FIG. 2 is an explanation showing the settings of the multi-channel radio paging receiving device of FIG. 3 is an external view showing the multi-channel radio paging receiving device of FIG. 1, FIG. 4 is a flowchart for explaining the operation of the multi-channel radio paging receiving device of FIG. 1, and FIG.
1 is a schematic configuration diagram showing a system in which the multi-channel radio paging receiving device of FIG. 1 is used, FIG. 6 is a flowchart for explaining the operation between the ends of FIG. is an explanatory diagram showing a paging signal transmitted from the base station of FIG. 5, and FIG. 9 is an explanatory diagram of the paging signal of FIG. 7. l. Antenna, 2... High frequency amplifier, 3... Mixer, 4... Synthesizer, 5... Intermediate frequency amplifier, 6
...Detector, 7...Control unit (CP(,,I), 7
a.2. Read only memory (ROM), 8...Alarm controller, 9.LCD driver 9d...Channel indicator (warning means). Part 1 - Name of agent Patent attorney Shigetaka Awano and one other person (Figure Q) Work Area A, Russia, Japan 1 (Haupisue I) Arroco, 1 day, Figure 1 Figure Figure 1,

Claims (1)

[Claims] means for selectively receiving radio paging signals transmitted from a base station in multiple channels for each channel; a first switch for selecting a channel to be received by the receiving means; and a radio paging signal received by the receiving means. a means for notifying when the self-calling number is detected from the signal; a second switch for stopping the notification of the notifying means; and a second switch for stopping the notification of the notifying means; and means for switching the channel being received by the receiving means to the next channel when the switch is operated.