JPH0445621A - Mobile radio telephone system - Google Patents

Abstract

PURPOSE:To attain the reception of a message while a subscriber is absent by monitoring the operating state of a radio line by a base station, sending the message subject to alternative reception previously through an idle line to a mobile station and storing the message at the mobile station. CONSTITUTION:When a mobile station 13 receives a channel designation signal in the absence registration state, radio line connection is implemented to receive a message through a channel designated by the control of a mobile station control section 132. When a radio line for deputy reception message transmission radio line is connected with the mobile station 13 by a line controller 11 of a base station 1, a control section 116 connects a voice storage device 114 to a radio equipment interface section 112 through a line switch 111 to send the message of deputy reception to the mobile station 13. On the other hand, the mobile station 13 receives the message sent from the base station 1 through a transmission/reception section 131 and stores the voice storage device 133 of the mobile station 13. A subscriber having left the mobile station 13 listens to the message stored in the voice storage device 133 when the subscriber returns to the equipment.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention comprises a base station connected to a general subscriber telephone network via a subscriber line and connected to a mobile station via a wireless line, and a plurality of mobile stations. Regarding mobile radio telephone systems, in particular, mobile stations are called using the second dial method, in which the system is called by dialing the representative number of the system to which the mobile station subscribes, and then the subscriber number of the mobile station is dialed. Concerning wireless telephone systems.

[Conventional technology]

In conventional mobile radio telephone systems, when a call is received from the general subscriber telephone network to the system, the system responds if it is ready to accept calls, receives the mobile station's subscriber number using the second dial, and calls the subscriber. When a number is received, the system checks whether the subscriber number is the subscriber number of a mobile station that has subscribed to its own system, and if it is a subscriber to its own system, calls the corresponding mobile station, and at this time, If the subscriber is away from the mobile station, the mobile station will only respond with a ring tone, but the caller of the general subscriber telephone network will not be able to talk to the subscriber of the mobile station. Ta.

[Problem to be solved by the invention]

In the conventional mobile radio telephone system described above, when a call is received from the general subscriber telephone network to a mobile station where the subscriber is away from the mobile station, the base station attempts to connect the mobile station to a radio line for communication. However, the caller is unable to make a call because the ring tone is sent out until there is a response from the mobile station.
Furthermore, in this case, the mobile radio telephone system has to control the allocation of radio channels to absent subscribers, which has the disadvantage of wasting radio channels.

[Means to solve the problem]

The mobile radio telephone system of the present invention includes: - a line control device that is connected to the subscriber telephone network via a subscriber line and controls communication of the entire system; and a radio device that is connected to the line control device and transmits and receives radio signals. and a plurality of mobile stations that have joined the system and perform wireless communication with the base station via the wireless device, and the mobile station receives a call from a subscriber terminal of the general subscriber telephone network. In this case, the subscriber terminal first calls the base station by dialing a representative number of the mobile radio telephone system, and when the base station answers, it then dials the subscriber number of the called mobile station. In the mobile radio telephone system, the base station includes an absence registration storage means for accumulating absence registrations from the mobile station, and a management means for managing absence registration information of the mobile station. , a message storage means for receiving and storing messages from a caller when a call is received to a mobile station registered as absent, and managing the usage status of all wireless channels allocated to the system. a channel management means; and a transmission means for transmitting a message stored in the message storage means to a mobile station that has been registered as absent; and an absence registration means for registering the mobile station as an absence to the base station; , an automatic response means for automatically responding to a call from the base station when the user is registered as absent, and a received message storage means for receiving and storing messages transmitted from the base station.

〔Example〕

Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a block diagram showing one embodiment of the present invention.

In FIG. 1, the mobile radio telephone system of this embodiment is as follows:
The base station 1 is configured to include a base station 1 connected to a general subscriber telephone network 1o via a subscriber line 100, and a mobile station 13 connected to the base station 1 via a wireless line.
The line control device 11 includes a subscriber line interface unit 110 that interfaces with the subscriber line 100, a wireless device interface unit 112 that interfaces with the wireless device 12, and a wireless device 12 that transmits a caller's message. A voice storage device 114 that stores proxy reception; a subscriber memory 113 that stores information such as presence or absence of absence registration for the mobile station 113; A system information storage device 115 that stores presence/absence, etc., and a subscriber line interface section 110. a line switch 111 that interconnects the wireless device 112 and the audio storage device 114;
The mobile station 13 includes a transmitting/receiving unit 131 that interfaces with the wireless device 12 and wirelessly transmits and receives voice and control signals to and from the base station 1, and a control unit 116 that controls the entire line control device 11. a voice storage device 133 that stores messages sent from mobile station 1; a subscriber interface unit 134 that inputs settings such as absence registration; and mobile station 1.
3, and a mobile station control section 132 that controls the entire mobile station control section 3.

Next, the operation of this embodiment will be explained.

The subscriber of the mobile radio telephone system of this embodiment is the mobile station 13.
When the subscriber leaves the mobile station 13, the subscriber sets absentee registration through the subscriber interface section 134 of the mobile station 13. When the mobile station control unit 132 recognizes the absence registration setting, the mobile station control unit 132 sends the phone number to the general subscriber telephone network through the transmitting/receiving unit 131.
Sends an absent registration signal containing an absent registration request code on the control channel.

In the line control device 11 of the base station 1, the wireless device 12 receives a signal transmitted from the mobile station 13, and the wireless device interface section 112 analyzes the received signal. When the absence registration signal is received, the control unit 116 changes the information of the corresponding mobile station in the subscriber memory 113 and registers the mobile station as absence.

When there is an incoming call from the general subscriber telephone network 10 to the mobile radio telephone system of this embodiment, the subscriber line interface section 110 detects the incoming call. The subscriber line interface section 110 is
When the control unit 116 is notified that the reception is possible, it responds to the general subscriber telephone network 10 and calls the caller to the second telephone number.
Receive the mobile station's subscriber number by dialing. The control unit 116 stores the received subscriber number in the subscriber memory 11.
Check the contents of 3 and check the mobile station 1 that has joined the own system.
If the subscriber number is 3, a connection operation is performed.

At this time, if it is found that the mobile station 13 with the relevant subscriber number is registered as absent from the contents of the subscriber memory 113,
The line control device 11 of the base station 1 does not perform the normal connection operation of allocating the available radio channel and calling the corresponding mobile station 13. The control unit 116 controls the line switch 111 to connect the voice storage device 114 to the mobile station 13 registered as absent.
The voice storage device 114 transmits a message transmission request to the mobile station 13 to the caller of the general subscriber telephone network 10 through the subscriber line interface section 110 to the subscriber line 100 to which the call is received. The voice storage device 114 stores messages from callers sent through the subscriber line 100, and the system information storage device 115 stores messages from callers sent through the subscriber line 100.
Operational information as to whether each wireless line is open or not, and information as to whether or not messages to the mobile station 13 registered as absent are being received on behalf of the mobile station 13 are stored. The control unit 116 periodically checks the contents of the system information storage device 115, and when the number of free channels of the wireless line is greater than or equal to the set value, if the message to the mobile station 13 registered as absent is being intercepted and received,
The message is then processed to be sent. The control unit 116 controls the wireless device interface unit 112. The wireless device 12 sends a channel designation signal for sending out a proxy reception message on the control channel.

When the mobile station 13 receives the channel designation signal, if it is in the absent registration state, it starts a wireless line connection operation to receive a message on the designated channel under the control of the mobile station control section 132.

In the line control device 11 of the base station 1, when a wireless line for sending a substitute reception message is connected to the mobile station 13, the control unit 116 controls the voice storage device 114 and the line switch 11.
1 to the wireless device interface section 112, and sends the message received on behalf of the mobile station 13 to the mobile station 13.

On the other hand, in the mobile station 13, the base station 1
The mobile station 13 receives messages transmitted from the mobile station 13 and stores them in the audio storage device 133 of the mobile station 13.

A subscriber who has left the mobile station 13 can listen to the messages stored in the audio storage device 133 when he returns.

〔Effect of the invention〕

As explained above, in the present invention, when a subscriber of a mobile radio telephone system leaves a mobile station, he/she registers his or her absence at the base station, and when a subscriber of a mobile radio telephone system leaves the mobile station, the mobile station In addition to intercepting and storing messages sent to subscribers, it also monitors the operating status of the system's wireless line, and when there is free line, transmits the message that was intercepted earlier to the mobile station. By configuring the mobile station to store the messages, system subscribers can register their absence when leaving the mobile station.
This has the advantage of being able to receive messages during this time, and it is useful for mobile radio telephone systems to avoid wasting time in allocating radio channels to mobile stations that are clearly unable to make calls, and when there are free radio channels. This has the effect of transmitting messages and making effective use of wireless channels.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing a mobile radio telephone system according to an embodiment of the present invention. 1...Base station, 10...General subscriber telephone network, 1131
9 line control device, 12... wireless device, 13... mobile station, 100... subscriber line, 110... subscriber line interface section, 11... line switch, 112...
Wireless device interface unit, 113...Subscriber memory, 114...Audio storage device, 115...System information storage device, 116...Control unit, 131...Transmission/reception unit, 132...Mobile station Control unit, 133...Audio storage device, 134...Subscriber interface unit.

Claims (1)

[Scope of Claims] 1. A line control device that is connected to a general subscriber telephone network via a subscriber line and controls communication of the entire system, and a wireless device that is connected to this line control device and transmits and receives radio signals. a base station, and a plurality of mobile stations that have joined the system to perform wireless communication with the base station via the wireless device, and the mobile station is called from a subscriber terminal of the general subscriber telephone network. First, the subscriber terminal dials the main number of the mobile radio telephone system to call the base station, and when the base station answers, the subscriber terminal then dials the subscriber number of the called mobile station and calls the base station. In a mobile radio telephone system for calling a mobile station on a called side, the base station includes an absence registration storage means for accumulating absence registrations from the mobile station, a management means for managing absence registration information of the mobile station; Message storage means that receives and stores messages from callers when a call is received to a mobile station registered as absent, and channel management that manages the usage status of all wireless channels allocated to the system. and transmitting means for transmitting the message stored in the message storage means to the mobile station registered as absent. 2. The mobile station includes an absence registration unit that registers an absence with the base station, an automatic response unit that automatically responds to a call from the base station when the mobile station is registered as an absence, and receives a message sent from the base station. 2. The mobile radio telephone system according to claim 1, further comprising means for storing received messages.