JPS62225095A - Mobile communication connection system - Google Patents

Abstract

PURPOSE:To attain simultaneous communication with a special group by setting a transmission/reception channel to set a charnel based on a control signal including talking channel assignment information in succession to the control signal including group numbers of plural mobile stations. CONSTITUTION:A mobile equipment l receives a control signal via a control channel reception circuit 14 and when a conrol circuit 16 identifies its own group number, a call tone is generated on a telephone set MTEL. The circuit 16 sets a designated channel to a talking channel reception circuit 12 and a talking channel transmission circuit 13 based on the talking channel assignment information received successively and the off-hook of the telephone set MTEL operates the circuits 12,13. On the other hand, when a radio base station 2 recieves an incoming number of group designation from an exchange 3, the control circuit 23 sends the talking channel assignment information in succession to the incoming number via a control channel transmission circuit 24. Then the channel of the talking channel transmission circuit 21 and the talking charnel reception circuit 22 is set to send answer signal to the exchange 3.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a mobile communication connection system, and particularly to a mobile communication connection system that connects to a specific group in addition to individual connections.

(Prior art) Conventionally, in mobile communications such as car telephones, when an individual call is received to a mobile device, a wireless base station transmits it in a mode in which all called numbers are broadcast using a control channel that all mobile devices are receiving. When the mobile device with the called number returns the first response signal to the wireless base station, the wireless base station allocates a communication channel to the mobile device, sends out a paging signal, and causes the mobile device's telephone to go off-hook. The call is initiated by sending a second response signal to the calling party. In mobile communications such as mobile phones and taxi radios, a common radio channel is established from the beginning between the base station and the affiliated mobile equipment, and a method is used to perform transmission or reception as needed. There is.

(Problems to be Solved by the Invention) However, with the spread of car phones and portable AT phones, there is a desire to specify a group and make single calls and conference calls using car phones.
The above-mentioned mobile communication has the problem that it can only handle calls of one size per person.

An object of the present invention is to solve the above-mentioned problems, and to provide a group number for a predetermined group to a mobile device in addition to an individual number in mobile communication in the form of a car phone, so that both individual communication and single communication with a group can be performed. The aim is to provide a mobile communication connection method that allows for

(Means for Solving the Problems) The present invention provides a mobile communication system that uses a control channel between a plurality of mobile devices and an unrelated base station to control outgoing and incoming calls and the allocation of communication channels. identification means for causing the device to immediately generate a ring tone without returning a response signal when the device identifies its own group number from the received control signal;
The transmitting and receiving channel is set according to the control signal containing the call channel received following the control signal containing the own group number, and when the attached telephone goes off-hook, the caller receives the group-specified call number from the designated exchange. channel designation means for transmitting a control signal containing call channel assignment information after transmitting a control signal containing a called number; and response signal transmitting means for transmitting a response signal.

With the above configuration, individual incoming call connections to mobile devices are performed in the same way as before, and the wireless base station knows that the group is specified from the incoming number at the local exchange or wireless base station, and Sends a control signal containing
A communication channel is then allocated in a state where no response is obtained from the mobile device. Then, any mobile device that receives the group number sets its transceiver to the assigned communication channel, goes off-hook, and prepares to make a call. On the other hand, after the base station sends the call channel allocation control signal to the calling side, it sends a response signal after determining the control operation time at the mobile device.
A communication circuit is also set up on the receiving side so that conference-style calls can be made with all mobile devices in the off-hook group.

(Example) Hereinafter, an example of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a diagram illustrating one embodiment of the present invention, in which a subscriber exchange is directly connected to a radio base station. In the figure, one of a plurality of mobile stations (hereinafter referred to as MST) 1, a radio base station (hereinafter referred to as MB8) 2, and an exchanger (hereinafter referred to as EX
) 3 and a number of conventional telephone stations connected to EX3.

The mobile device 1 has a transmission/reception branching circuit (hereinafter referred to as MDW) 11 connected to an antenna ANT, a communication channel reception circuit (hereinafter referred to as 5RX) 12 and a transmission channel transmission circuit (hereinafter referred to as 5TX) 13 connected to the MDWI, and control channel reception. circuit(
CRX) 14 and control channel transmitter circuit (CTX)
) 15 and a control circuit (
CLR) 16, CLRI 6 and the above transmitting/receiving circuit 12
~15 and a synthesizer (hereinafter referred to as 8Y) connected to 17
and a telephone M station.

The radio base station 2 includes a communication channel transmission circuit (hereinafter referred to as 5TX) 21 and a communication channel reception circuit (hereinafter referred to as 5aX) 22 connected to each of the plurality of communication lines of the EX3, and a control circuit (hereinafter referred to as 5aX) connected to the EX3 via a control signal line. C0NT) 23, a control channel transmitting circuit (CTX) 24 connected to C0NT23, and a control channel receiving circuit (CRX) connected to C0NT23.
25, and a transmitting/receiving division circuit (hereinafter referred to as MDW) 26 connected to the above-mentioned transmitting/receiving circuit and the antenna ANT.

In the above configuration, 10. Between the telephones connected to EX3, or this telephone T1. : The connection from L to MSTI or from M S 1' 1 to the telephone equipment connected to EXa is made in a conventional manner according to the telephone number given in advance to the mobile or telephone, respectively. By the way, in order to make a group connection to mobile stations, which is the object of the present invention, mobile stations are given a group number for group identification in addition to individual telephone numbers. It is also possible to give a common number to , the last two digits of the group number are prefixed with 00#, and the last two digits of the group number can be given as "Ol", '02''', etc.

FIG. 2 is a flowchart when the mobile device performs an incoming call connection using a group number in FIG. 1. Further, FIG. 3 is a 70-chart when the wireless base station performs incoming call connection using a group number in FIG. 1.

The operation of group connection will be explained below with reference to FIGS. 2 and 3.

First, when the MSTI receives an incoming control signal from the control channel via the C-box 14, the CL-box 16 checks whether its own group number is specified in this control signal (step 2). If it is not specified there, check whether the own individual number has been specified (step ■). If the own individual number is specified, normal individual connection processing is performed (step 2).

If the own individual fragrance name is not specified here, the recovery is released. On the other hand, if the own group number is specified in step (2), the CL box 16 generates a ringing tone on the telephone set M (step (2)). Next, the CLI (16 waits to obtain channel allocation information from the CRX 14 (step ■). Step O
5RX1z and 5T when you obtain channel assignment information at
The designated channels are set for each XI3 (step ■).

Next, the CLR 16 waits for the telephone set M to go off-hook (step 2). Then, when off-hook is detected, 5RX12
and s'rxt3 are put into operation and a communication path is set up.

On the other hand, when the MB82 is given a call termination request to the M S Tl via EXa, the C0NT23 first checks whether the received call number is a group number or an individual number.

In this case, it is also possible to use the group designation information that EXa examines the subscriber list tt and transfers to the MB 82 together with the telephone number (step 2). At this time, if the number is an individual number, conventional individual call processing is performed (step @).

If it is a group number, C0NT23 causes an incoming call control signal including this group number to be transmitted via CTX24 used as a control channel (step @). Next, the C0NT 23 selects an empty communication channel and causes the channel designation information to be transmitted again via the CTX 24 (step 0). Then immediately 5TX21 and 5RX22
Set the specified transmission and reception channel (step [phase]). Then, after a certain period of time (step 0), a response signal is sent to EXa (step O).

Next, the communication path is set as 5TX21 and 5RX22t-in operation state. Through the above operations, the mobile device that has gone off-hook after receiving the group number can immediately make a call with the caller.

In the above explanation of the operation, calls are made from a subscriber connected to the exchange, but it is clear that a similar connection can be made for group calls from mobile devices as they go through the exchange.

Furthermore, in the above embodiment, when a group call is received, the group number and channel allocation information are separated from the radio base station and control signals are sent out sequentially. Steps @ and 0 in Figure 3
1. In this case, the processing procedure of the mobile device is the 2nd one.
There is no change from the processing procedure shown in the figure.

(Effects of the Invention) As explained in detail above, according to the present invention, a common group number is given to a plurality of pre-specified mobile devices in addition to individual telephone numbers, and by dialing the group number, Mobile devices belonging to a group can be called together and a conference-style call can be made using a common call channel.

[Brief explanation of drawings]

FIG. 1 is a diagram showing embodiments 1', J, and 6 of the present invention, FIG. 2 is a flowchart when the mobile device in FIG. 1 receives an incoming call using a group number, and FIG. 12 is a flowchart when a base station receives an incoming call using a group number. 1. Mobile station (MST), 2 Wireless base station (MBS),
3. Exchange (EX), 12.22...Speech channel receiving circuit (SRX), 13.21. Speech channel transmitting circuit (STX), 14.25. Control channel receiving circuit (C1
(,X), 15.24 ・Control channel transmission circuit (CT
X), 16 ・Control circuit (CLR), 23 Control circuit (
CONT). Agent Patent Attorney Susumu Uchihara ()-4, / Kyu 2 Figure 7j3 Figure

Claims (1)

[Claims] In a mobile communication system that uses a control channel to control outgoing calls, incoming calls, and call channel allocation between a plurality of mobile devices and a radio base station, the mobile device automatically performs communication based on received control signals. an identification means that immediately generates a ring tone when a group number is identified; and an off-hook device that sets a transmission/reception channel based on a control signal containing call channel allocation information received following the control signal containing the own group number; and a connection means for setting a communication path by means of a connected exchange, and when the radio base station receives a group-designated terminating number from a connected exchange, it transmits a control signal containing the terminating number, and then transmitting a control signal containing communication channel allocation information. 1. A mobile communication connection system comprising: channel designating means for transmitting a control signal; and response signal transmitting means for transmitting a response signal to a caller after transmitting the control signal containing the channel allocation information.