JPH0161268B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a mobile radio reservation communication system in which mobile stations share a communication channel in multiple accesses for effective use of frequency resources.

In wireless communication systems, all communication channels are used, and if traffic overflows, a meeting is required.

In such cases, conventional meeting arrangements are based on first-come-first-served basis, which is an unfair connection method that often involves gambling.

An object of the present invention is to provide a rational mobile radio reservation communication system that solves the drawbacks of the prior art.

To achieve the above object, the mobile radio reservation communication system according to the present invention is a communication system in which a large number of mobile stations share a plurality of communication channels divided into a control channel and a communication channel. The usage state information of each call channel and the call channel information to be connected are sent using the specified bit of the control channel. If all the call channels are in use, information on whether reservation is possible or not is sent, and the mobile station The call channel selection at the time of making a call is controlled according to the information from the control channel, and if there is an empty call channel, it is connected to the empty call channel specified by the base station, and if reservation registration is possible, reservation registration is performed. As soon as an empty call channel occurs due to communication traffic consumption, calls are permitted in the order of reservation registration, and if reservation registration is not possible, a message to that effect is displayed.

Hereinafter, the system of the present invention will be explained in more detail with reference to the drawings and the like.

FIG. 1 is a conceptual diagram of a system for explaining an embodiment of the system of the present invention, and FIG. 3 is an external view of a transceiver of each mobile station used in the system.

In FIG. 1, the base station 2 has a control channel 4.
The mobile stations 1a to 1x are configured to always send communication channel information using the mobile stations 1a to 1x, and each mobile station 1a to 1x is configured to always receive this information while on standby. The transceiver of each mobile station 1a-x is therefore programmed with its communication control circuit.

In the control channel 4, control codes based on FSK at a rate of, for example, 1200 Bit/S are transmitted. Second
In the figure, 3 bits are used as synchronization bits 11, then 2 bits of inter-bit interval 14 are placed, channel bits 13 of 11 bits are arranged as many times as the number of channels with inter-bit intervals 14 in between, and designation bits 12 of 86 bits are placed next. add, open an intersymbol interval 15, and then add synchronization bit 1.
This shows an example of the above control code in which 1 is placed. Channel bit 13 transmits information regarding each communication channel 3A to 3M, and the blue indicator light of transceiver 20 lights up based on the information.
In this case, the only blue indicator light that lights up is the one corresponding to the call channel in use.

In the mobile station 1x, the communication of the transceiver 20 is such that when there is an empty communication channel, if the handset 27 of the transceiver 20 is picked up and a call is made using the control channel, the communication automatically shifts to the communication channel specified by the specified bit 12. A control circuit is controlled, and under the control of this communication control circuit, the PLL local oscillator circuit is controlled to have the frequency of the designated communication channel.

When the amount of communication traffic increases and all communication channels are blocked, the yellow indicator light 23 lights up to indicate that reservation communication has been accepted.

If mobile station 1x makes a call in this state,
The waiting time is displayed in seconds on the LED display section 22 of the transceiver 20 based on the waiting time bit transmitted as a designated bit after reservation registration, and this numerical display changes from moment to moment according to fluctuations in communication traffic.

When the reservation registration of other mobile stations is sequentially permitted, and the turn goes to mobile station 1x, and the call channel becomes empty, the LED display section 22 goes out and a chime sounds from the speaker 25, prompting the user to make a call.

At this time, if a call is made within a certain period of time, the connection will be made to the communication channel indicated by the specified bit, and if the call is not made, the reservation registration will be cancelled.

When the amount of communication traffic further increases and the base station's reserved communication reception memory becomes full, information is sent from the base station by the instruction bit 12, and the red indicator lights 24 of all waiting mobile stations light up. This will be displayed.

If mobile station 1x makes a call in this state,
A buzzer warning sound is emitted from the speaker 25, informing the user that it is not possible to make a call or accept a reserved communication.

After the mobile station 1x registers for reserved communication, the control key 29 is pressed to cancel the registration.

In this example, the transceiver 20 has a large number of control keys 2.
9 is shown, but it may be of any other form as long as it can be canceled.
Note that the card holder 30 above the control key 29 is for displaying the name of the control key 29.
When cancellation is performed, information is transmitted by an instruction bit so that the ranking of other subsequent mobile stations that are registered for reserved communication will be raised, and the waiting time LEDs of the mobile station that canceled and the mobile station that is currently registered for reservation will be displayed. The display will be changed.

When introducing the method of the present invention into a conventional system, the control program of the communication controller of base station 2 is changed, an indicator light and a control key are added to the transceiver of the mobile station, and the program of the communication control circuit of the transceiver is added. Just doing that is enough.

The present invention is a mobile communication system that effectively utilizes frequency resources, has high investment efficiency for base station equipment, and has extremely high communication efficiency.

Since the present invention has the above-described configuration, it is possible to provide a mobile radio system that can fairly process appointments for all participating mobile stations.

[Brief explanation of drawings]

FIG. 1 is a system conceptual diagram for explaining an embodiment of a mobile radio reservation communication system according to the present invention, FIG. 2 is a code configuration diagram of a control channel, and FIG. 3 is an external view of radio equipment of a mobile station. 1a~1x...Mobile station, 2...Base station, 3A~
3M...Speech channel, 4...Control channel, 5...Base antenna, 10...Control code, 11
...Synchronization bit, 12...Specified bit, 13...
Channel bit, 14... Inter-bit interval, 15... Inter-symbol interval, 20... Transceiver, 21... Blue indicator light, 22... LED,
23...Yellow indicator light, 24...Red indicator light, 25...
Speaker, 26...Power key, 27...Handset, 28...Hook button, 29...Control key, 30...Card holder.

Claims (1)

[Claims] 1. In a communication system in which a large number of mobile stations share multiple communication channels divided into control channels and communication channels, the base station transmits usage status information of each communication channel using the channel bits of the control channel, and information about the usage status of each communication channel using the control channel designation bits. Send the call channel information to be connected,
If all call channels are in use, information is sent as to whether reservation is possible or not, and the mobile station controls call channel selection when making a call according to the information from the control channel, and selects an empty call channel. If there is a vacant channel designated by the base station, the reservation is registered, and if a reservation is possible, the reservation is registered.As soon as a vacant channel becomes available due to communication traffic, calls are permitted in the order of reservation registration, and the reservation is registered. A mobile wireless reservation communication system configured to display a message to that effect if this is not possible.