JPH02295296A - Absence guidance system for mobile radio telephone system - Google Patents

Abstract

PURPOSE:To eliminate the assignment of a radio channel to an absent mobile subscriber in response to unnecessary re-origination by offering absence guidance service for mobile subscribers. CONSTITUTION:The above absence guidance system consists of a general subscriber telephone network (subscriber network) 10 and a line controller 11 which is interposed between the subscriber network 10 and a base station radio device 12 and sends and receives the absence message of a mobile station 13 to some calling subscriber in the subscriber network 10, and the line controller 11 is installed in a base station. Here, when the subscriber of the system leaves the mobile station 13 or when the mobile station 13 exists from the service area, absence is registered in the line controller 11 of the base station and the message stored at the base station is sent to the originator in the subscriber network 10 when an incoming signal is received at the mobile station 13 of the absent subscriber. Consequently, a radio channel need not be assigned to the mobile station 13 and radio channels can be utilized effectively.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a mobile radio telephone system (hereinafter referred to as the system).
In particular, the present invention relates to an absence guidance system for a mobile radio telephone system that transmits an absence message or a pre-registered absence message to a caller when a mobile station subscriber is absent from the mobile station.

[Conventional technology]

Conventionally, the absentee notification method of this type of system is that when a caller from a caller on the general subscriber telephone network receives a call to the system, if the system is not able to accept the incoming call, the general subscriber telephone network answers the call. Receive the subscriber number from the second dial. Next, the system verifies whether the received subscriber number is the subscriber number of a mobile station that has joined the system, and if it is a subscriber, calls the corresponding mobile station. In this case, if the mobile station is outside the service area, the base station will not be able to connect the line because there will be no response from the mobile station. Furthermore, if the subscriber is away from the mobile station, the ring tone keeps ringing and line connection cannot be established. That is, there was no way to message the caller with information informing them that the mobile subscriber was unavailable.

[Problem to be solved by the invention]

Since the absence notification method of the conventional system described above does not provide an absence notification service for mobile subscribers, the mobile radio telephone system has to control the allocation of radio channels by wastefully re-calling absent greeting subscribers. There are drawbacks to doing so.

[Means to solve the problem]

In the absence notification system of the mobile radio telephone system of the present invention, when a mobile station subscriber leaves the mobile station or when the mobile station moves out of the service area, the mobile station sends an absence registration signal to the corresponding base station. storage means in which the mobile station subscriber registers an absent message or a predetermined response message; and the mobile station for checking the number of the call from the subscriber telephone network. The base station is provided with a subscriber number storage means for registering a subscriber number of the base station, and a line switch connection means for transmitting a message stored in the storage means to a caller from the general telephone network.

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

FIG. 1 is a schematic diagram of an embodiment of the present invention. In the embodiment shown in FIG. 1, a general subscriber network (hereinafter referred to as a subscriber network) 10, a subscriber network 1
The mobile station 13 is comprised of a line control device 11 that sends and receives an absence message from a mobile station 13 to a subscriber who is a caller. The line control device 11 is usually installed in a base station. Next, the operation of this embodiment will be explained.

In order to perform absence registration when the mobile subscriber leaves the mobile station 13, the mobile station 13 sends an absence registration signal containing an absence registration request code instead of the telephone number of the general mobile subscriber telephone network to the base station radio on the control channel. The device 12 sends out. The line control device 11 provided in the base station receives the signal transmitted from the mobile station 13 via the wireless device 12, and receives the absence registration signal at the interface section 102. If the communication channel is empty, the control unit 105 sends a channel designation signal for transmitting an absence notification message to the mobile station 13 from the interface unit 102 via the line switch 101, and also sends the voice storage device 104 to that channel via the line switch 101. Connecting. The voice storage device 10l1 sends a request to send an absence notification message to the mobile station 13 through the connected communication channel. The mobile station 13 transmits an absence guidance message and stores the absence guidance message received through the base station wireless device 12 in the voice storage device 104. At the same time, the control unit 105 changes the information of the corresponding mobile station in the subscriber memory 103 and registers the mobile station as absent.

Join! When there is an incoming call from 1410 to the wireless telephone system, the subscriber line interface unit 100 detects the incoming call. When the subscriber line interface unit 100 is notified by the control unit 105 that the subscriber line interface unit 100 is in an acceptable state, the subscriber line interface unit 100 connects to the subscriber network 10. In response, the subscriber number by the second dial is received. The control section 105 compares the subscriber number received by the subscriber line interface section 100 with the contents of the subscriber memory 103 and performs a connection operation. At this time, if the mobile station with the corresponding subscriber number is registered as absent, the mobile station is not called and the subscriber line 106 is connected to the voice storage device 1 through the line switch 101.
Connect to 04. The voice storage device 104 conveys the stored absence notification message to the originating caller of the subscriber network 10.

In this embodiment, an example has been described in which the absence notification message is registered at the same time when each mobile station registers the absence. This can also be realized by a method in which, when a call is received to a mobile subscriber, the stored absence notification message is sent back at the base station.

〔Effect of the invention〕

As explained above, when a subscriber of the system leaves a mobile station or the mobile station goes out of the service area, the subscriber registers the absence in the line control device of the base station, and the subscriber registers the absence at the base station. When a mobile station receives a call, the message stored in the base station is sent to the caller on the general subscriber telephone network, thereby eliminating the need to allocate a wireless channel to the mobile station and making effective use of the wireless channel. This has the effect of

[Brief explanation of the drawing]

FIG. 1 is a block diagram of an embodiment of the present invention. 10... general subscriber telephone network, 11... line control device,
12...Base station wireless equipment, 13...Mobile station, 100
...Subscriber line interface section, 107...Line switch, 102...Interface section, 103...
Subscriber memory, 104...Audio storage device, 105...
- Control unit, 106... subscriber line.

Claims (1)

[Claims] When a mobile station subscriber leaves the mobile station or when the mobile station moves out of the service area, the mobile station sends an absence registration signal to the corresponding base station, and the mobile station subscriber registers an absence message. a storage means for registering a predetermined response message, and a subscriber number storage means for registering a subscriber number of the mobile station for checking with a call number from a general subscriber telephone network; An absence notification system for a mobile radio telephone system, characterized in that the base station is equipped with line switch connection means for transmitting a message stored in the storage means to a caller from the general telephone network.