JPS5890838A - Communication system for mobile radio reservation - Google Patents

Abstract

PURPOSE:To impartially process all the waiting of subscriber mobile stations, by performing reserved registration for a base station, when no vacant communication channel exists in the base station. CONSTITUTION:The information whether or not a vacant communication channel exists is transmitted on a control channel 4 from a base station, and when no vacant communication channel exists, the information whether or not the reserved registration is possible is transmitted. At a mobile station, the channel selection at an outgoing call is controlled according to the information from the control channel, and when the vacant channel exists, the mobile station is connected to the vacant channel designated by the base station, and when the reserved registration is possible, the reservation is done. When the reserved registration is impossible, it is displayed and as soon as a vacant channel is generated after the communication traffic is usable, the call can be permitted in the order of registration.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a mobile radio communication system in which a communication channel is shared by multiple accesses.

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

In such cases, conventional meeting arrangements have been based on first-come-first-serve priority, which is an unfair connection method that has the nature of 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.

In order to achieve the above object, a 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 control channels and communication channels. Sends information on whether or not there is an empty channel to the station,
If there is no free channel, information on whether or not reservation registration is possible is sent, and the mobile station controls channel selection when making a call according to the information from the control channel, and if there is a free channel, the base station If you are connected to an empty call channel designated by the station and can make a reservation, make a reservation; if it is not possible, a message to that effect will be displayed, and as soon as an empty call channel becomes available after 1 communication and 2 calls are completed. The configuration is such that calls are permitted in the order of reservation registration.

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 is configured to always send communication channel information, etc. using a control channel 4, while each mobile station 1 & ~ ing. Therefore, the communication control circuit of the trunk cooperation of each mobile station 1aNx is programmed in such a manner.

On the control channel 4, control codes based on FSK at a rate of, for example, 1200 Hit/S are transmitted.

In Figure 2, the 3 bits are set as synchronization bits 11, then the 2-bit inter-bit interval 14 is i%, and the channel bits 13 consisting of 11 bits are arranged as synchronization bits with inter-bit interval 14 in between depending on the number of channels. This shows an example of the control code described above, in which a designation bit 12 consisting of 9 is added, an inter-symbol interval b is opened, and a synchronization bit 11 is placed next. The channel bit 13 transmits information regarding each communication channel 3A to 3M, and the blue indicator light of the trunk cover 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, when there is an empty communication channel, the communication of the transceiver is set so that if the transceiver's node set n is hooked up and a call is made on the control channel, the communication will automatically shift 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 is large and all communication channels are blocked, the yellow indicator light β lights up to indicate that reservation communication has been accepted.

If mobile station 1x makes a call in this state, reservation can be made and the waiting time bit transmitted in designated bit 12 will display the waiting time in seconds on the LED display part n of the transceiver. The display changes from moment to moment according to fluctuations in communication traffic.

If the reservation registration of other mobile stations is not permitted one after another, the turn goes to mobile station 1x, and the communication channel becomes empty, L
The ED display section 22 disappears 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 is made to the communication channel specified by the instruction bit, and if the call is not made, the reservation registration is cancelled.

Furthermore, if the amount of communication traffic increases and the base station's reserved communication reception memory becomes empty, an instruction beep (12) will cause the information to be transmitted from the base station and the red indicator lights of all waiting mobile stations will turn on. and a message to that effect will be displayed.

If the mobile station 1x makes a call in this state, the speaker 25 will output a buzzer warning sound, informing the user that neither the call nor the reserved communication can be accepted.

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

This example shows an example in which the transceiver 20 is provided with a large number of control keys 4, but these may be of any other form as long as they can perform cancellation. (capital) is used to display the name of control key 4. 0 When canceling 9, the instruction bit υ information is used to raise the rank of other mobile stations that are currently registered for reserved communication. The waiting time LED display of the mobile station that transmitted the reservation and the mobile station that performed the cancellation and the mobile station that is registering the reservation is changed.

When introducing the method of the present invention into a conventional system, the control program of the communication controller of the 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 changed. All you have to do is add it.

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

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

[Brief explanation of the drawing]

FIG. 1 is a system conceptual diagram for explaining an embodiment of the 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. 1'a to 1x...Mobile station 2...Base station 3A to 3
M-...Speech channel 4...Control channel 5...Base antenna 10-...
・Control code 11...Synchronization bit 12...Specification bit 13...Channel bit 14...
Inter-bit interval 15... Inter-symbol interval 20... Transceiver 21... Blue indicator light 22...
...IJD 23...Yellow indicator light...Red indicator light 5...Speaker 26...Power key
But... no... hook button
4...Control key (capital)...Card holder Patent applicant NEC Co., Ltd. Agent Patent attorney Inoro Figure 1 (A Figure 2) −−−−−11111−
)5 years old

Claims (1)

[Claims] In a communication system in which a large number of mobile stations share multiple communication channels divided into control channels and call channels, the base station sends information on whether or not there is an empty call channel to each mobile station via the control channel. If there is no channel, information on whether or not reservation registration is possible is sent.The mobile station controls the call channel selection when making a call according to the information from the control channel, and if there is an empty channel, the base station If the specified empty call channel is connected and reservation registration is possible, the reservation will be made. If reservation registration is not possible, a message to that effect will be displayed and the communication traffic will be digested. As soon as an empty call channel becomes available, the reservation will be made. A mobile radio reservation communication system configured to permit calls in sequence.