JP2978789B2 - Digital MCA system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a digital MCA (M
More particularly, the present invention relates to a mobile station absence process in a digital MCA system.

[0002]

2. Description of the Related Art An MCA system standardized by, for example, a mobile radio center (foundation) widely used in the transportation and transportation industries is well known. In some mobile phones, a selective call is possible, and therefore, when the called mobile station is absent, an absent processing function is provided so that the incoming call is not wasted. For example, JP-A-61-1033
Japanese Patent Publication No. 28 (hereinafter referred to as a first prior art) discloses a technique of detecting the absence of a called party and leaving a message memo, and Japanese Patent Application Laid-Open No. 56-126361 (hereinafter referred to as the first prior art). 2), there is a prior art in which a function similar to that of an ordinary telephone answering machine is provided.

That is, in the second prior art, an MCA mobile station is provided for each truck in the transportation industry or the like as the same user group, and when the driver temporarily leaves the truck, the MCA mobile station is operated by key operation. When you are in answering machine mode and there is an incoming call from another truck driver of the same transportation business (other mobile station of the same user group), the system automatically enters the call answering mode and the other party's voice is heard. It is configured to automatically record as an answering message in the internal memory, return to the truck, release the answering mode by key operation, play the answering message recording, and hear the message from the other party by voice. ing.

[0004]

However, in the prior art as described above, a notification that there is an incoming call when the user is absent and a simple message can be left in a memo or a recording.
If you want to talk directly instead of a message, you don't know when Answering Machine has been released. In other words, in the transportation industry, etc., efficient work is performed while the trucks keep in contact with each other at any time. However, since it is not known when the answering machine has been canceled, the call to the absentee is repeated.

On the other hand, when a callee who has received a call when he / she is absent cannot clearly identify the other party by playing back a message memo or a recorded message, the other party must determine the other party based on the contents of the memo and the voice. If you still need to call back and talk to this person after
It is necessary to perform the call operation by entering the individual number of the other party, which is a unique work of cereal call, and it takes time and effort,
This becomes difficult if the individual number of the other party is not known.

The present invention has been made to solve such a problem, and an object of the present invention is to provide a digital MCA system having an out-of-office processing function capable of performing appropriate processing.

[0007]

SUMMARY OF THE INVENTION A digital MCA system according to the present invention provides a digital MCA system in which an answering mode such as a so-called answering message recording function can be set in a mobile station terminal.
Means for automatically transmitting a notification to the effect that the mobile station terminal has released the answering machine mode to all other mobile station terminals of the same user group by using broadcast communication means.

In a digital MCA system in which a mobile station terminal can set an answering mode such as a so-called answering message recording function, when the answering mode is set and when the set answering mode is released, a notification to that effect is sent simultaneously. It is characterized by comprising means for automatically notifying all other mobile stations of the same user group using broadcast communication means. With the digital MCA system of the present invention having the above-described configuration, it is possible to accurately recognize the states of the partner stations and prevent unnecessary repetition of the call.

In a digital MCA system in which a mobile station terminal can set an answering mode of a so-called answering machine function, when an incoming call is received while the answering mode is set and an answering machine records the answering function, a call destination is set. Means for detecting and storing the individual number and zone number of the mobile phone, if necessary at the time of recording and playing the answering machine, the user performs a calling operation on the mobile station terminal to obtain the individual number and zone number of the call destination. Is read out and the mobile station terminal automatically calls the call destination by a self-call. With the above-described configuration, the return call for the absence message recording does not require the input of an individual number or the like,
It can be performed only by calling operation.

Further, in a digital MCA system in which a so-called answering machine recording function can be set in a mobile station terminal, if a call is received during the answering mode and an answering machine is recorded in the answering machine recording function, a call destination is set. Means for detecting and storing the individual number and zone number of the caller, and when the set answering mode is released, the stored caller's individual number and zone number are used to automatically inform the caller of that by a call. It is characterized by having means for making a call.
With the above-described configuration, it is possible to notify only the calling party that performed the absence message recording that the absence mode setting has been released.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. The MCA system of the present invention is provided when the user of the mobile station sets the answering mode when the user is away from the mobile station, and when returning and canceling the answering mode,
Digital Foundation M issued by Mobile Radio Center
Automatically operates user broadcast, which is defined in the MRC standard for the radio system of the CA system, in which all mobile stations of the same user are drawn into a call, and transmits a radio signal FACCH1 (user control message) defined in the aforementioned standard. ), Wireless data for notifying the absence mode set or the absence mode is transmitted according to a predetermined protocol.

FIG. 1 is a diagram showing wireless data for notifying an absence mode set or an absence mode release. When the answering mode is set by the key operation at the mobile station or when the answering mode is released, the mobile station automatically activates the above-mentioned user broadcast mode, and during this call, the user broadcast mode shown in FIG. Is transmitted as the FACCH1 format. Other mobile stations of the same user group that have received this data recognize the absence mode signal in octet 6 of FIG. 1, and further, in octets 2 to 5 and 7,
Recognize the calling mobile station identification number (individual number) and its message (answer mode set or answer mode release),
Store this in memory. Accordingly, the user of another mobile station displays the content stored in this memory on the display unit by a predetermined key operation as necessary, so that which mobile station is currently in the absence mode or the absence mode is released. Taka
You can know before you make a call from your own station, and you can make efficient calls.

FIG. 2 is a diagram showing a broadcast communication protocol as an example of a case where an absence mode release notification is issued (the same applies to an absence mode set notification). When the answering mode is canceled by a key operation, the mobile station (answering mode mobile station) issues a call request for simultaneous user broadcast to the relay station in order to notify other mobile stations of the same user group. (Base station). When the user in the answering mode mobile station and the mobile stations n1, n2, n3... Ni in the same user group receive the user simultaneous communication notification from the relay station (base station),
All mobile stations are in a user simultaneous call state. In this state, the answering mode mobile station automatically performs the operation of acquiring the transmission right.
A user control message (absent mode release notification) is transmitted, and after the transmission, the call end operation is automatically performed. Note that such an operation is realized by software processing.

As described above, according to the present invention, the notification of the absence mode set and its release are given in the absence process.
We decided to do it for all other mobile stations in the same user group,
When you release the absence mode and play the message recording,
Depending on the contents of the message, there is a case where it is desired to immediately make a call with the other party. Therefore, according to the second embodiment of the present invention, the message recording function of the mobile station is provided with a message recording individual number list as shown in FIG. , The individual number of the other party and the zone number where the other party is currently located are detected and stored in the list. If you want to talk to the other party during recording and playback after canceling the answering machine mode, simply operate the call key and the individual number and zone number of the currently playing item will be automatically displayed from this list of recorded messages. And automatically call the other party.

[0015] Therefore, even if it is not possible to specify the other party on which the message recording was performed during the absence mode, or if the other party can be identified but the individual number is not known, the other party can be automatically called. Become. The addition of such a function can be realized by software processing using existing technology.

Further, since the individual number and the zone number of the destination mobile station on which the message recording was performed during the answering machine mode are detected as described above, the simultaneous broadcast communication in the first embodiment is performed. The notification of canceling the absence mode
It is also possible to adopt a configuration in which notification is automatically made only to the other party by normal call communication.

[0017]

As described above, the digital M of the present invention is used.
By configuring the CA system as described above, the setting and cancellation of the absence mode can be transmitted to all other mobile stations of the same user group. Also, if you have recorded an answering machine and you need to make a call back to the other party, you can call the other party only by calling operation, so you do not know the individual number etc. of the other party It is possible to make a return call. In addition, if you leave the absence mode,
There is an effect that release of the absence mode can be transmitted only to the other party who received a call during the absence mode.

[Brief description of the drawings]

FIG. 1 is a diagram showing an example of wireless data for notifying an absence mode set or an absence mode release in one embodiment of the present invention.

FIG. 2 is a diagram illustrating a broadcast protocol in an example in which an absence mode release notification is performed;

FIG. 3 is a diagram showing an example of an answering machine recording individual number list used in an embodiment of the present invention.

Claims (2)

(57) [Claims] A digital MCA (Multi Chassis) capable of setting an answering mode such as a so-called answering message recording function at a mobile station terminal.
nnel Access) system, when the set absence mode is released, a notification that the mobile station terminal has released the absence mode is sent to all other mobile station terminals of the same user group using broadcast communication means. Means for automatically transmitting to the digital MCA system. 2. In a digital MCA system in which a mobile station terminal can set an answering mode such as a so-called answering message recording function, when the answering mode is set and when the set answering mode is released, a notification to that effect is sent simultaneously. 2. A digital MCA system according to claim 1, further comprising means for automatically notifying all other mobile stations of the same user group using broadcast communication means.