JP3902309B2 - Two-way mobile communication system - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a bidirectional mobile communication system such as a car phone, a mobile phone, a PHS, a digital cordless phone.
[0002]
[Prior art]
FIG. 1 is a configuration diagram of a general two-way mobile communication system. Information transmitted from mobile stations (slave units) 7a and 7b is transmitted from base stations (master units) 6a and 6b via a communication control line 4. To the control device 3. The control device 3 manages the sent information, and performs a process corresponding to the information for the call on the caller side based on the information. The general telephone 9 is connected to the exchange or the public line network 1 through the general subscriber line 8, and the control device 3 is connected to the exchange or the public line network 1 through the communication control line 2.
[0003]
FIG. 5 shows an example of a control flow during standby of a conventional bidirectional mobile communication system, and FIG. 6 shows a control flow during communication.
[0004]
Communication by the conventional two-way mobile communication system is performed after a communication line is always established for both voice and data when communicating directly with a corresponding mobile station (slave unit). In this case, when the corresponding mobile station (slave unit) responds within the service area, the corresponding mobile station (slave unit) is in an operating state in both the transmission unit and the reception unit.
[0005]
The problem here is that the mobile station cannot respond morally (for example, in a train, in a hospital, or in a place where there is a risk of affecting precision equipment) or the personality of the mobile local owner. It occurs regardless of the situation (response during meeting, customer service, etc.) that cannot be answered.
[0006]
Conventionally, as a countermeasure for these situations, an answering machine function on the network (control device) side, an answering machine function on the portable device body side, and a vibration incoming call function are provided.
[0007]
[Problems to be solved by the invention]
However, there is no way to deal with a case where the mobile station cannot respond morally and a response is urgently required. Among the above, the absence function on the network side lacks urgency. Those with a pager function have different drawbacks in that they are troublesome for the caller and increase the communication cost of the owner of the portable device.
[0008]
In order to solve such problems, an object of the present invention is to improve a service for a user in a situation where a mobile station (slave unit) cannot respond within a service area in a bidirectional mobile communication system. An object of the present invention is to provide a bidirectional mobile communication system having a reception-only mode function.
[0009]
[Means for Solving the Problems]
The above purpose is to provide the mobile station with a means for manually sending the information of the reception-only mode to the host device, and automatically switch to the reception-only mode on the system side based on the information from the mobile station This is achieved by providing means for providing a paging service to a caller / receiver several times at specific intervals.
[0010]
Further, the above object is that the means for providing the paging service to the calling / calling party holds the message created by the DTMF signal on the calling side on the network side when the calling side selects the message service by the DTMF signal. Sending a message held at a specific interval several times to the called party, or if the sender chooses the answering function on the network side using the DTMF signal, Recorded in a record and sends a message with a recorded message to the called party several times at a specific interval. If the called party has an answering machine, the caller's voice is directly sent to the called party. This is achieved by transmitting at a specific interval several times to the side.
[0011]
According to the above means, the mobile station manually sends transmission / reception / reception-only mode switching information to the host device, and the network side (the control device) sends and receives bidirectional communication services and paging services based on the information. Provide to followers. When the communication mode is the reception-only mode, the control device notifies the caller side that the callee side is in the reception-only mode. Service selection in the receive-only mode is left to the caller.
[0012]
When the caller side selects the message service by the DTMF signal, the control device holds the message created by the caller side DTMF signal on the network side, and holds the message held at a specific interval several times on the callee side. send. In addition, when the caller side selects the network side answering function using the DTMF signal, the caller side voice is recorded in the answering machine on the network side, and there is a recording message at a specific interval several times on the callee side. Send a content message. In addition, when there is an answering machine function on the called party side, the voice of the calling party is directly sent to the called party side at specific intervals several times.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0014]
FIG. 2 shows a control flow chart during standby according to an embodiment of the present invention. The configuration of a bidirectional mobile communication system according to an embodiment of the present invention is as shown in FIG. 1. First, the mobile stations 7a and 7b set the mode (transmission / reception only) set by manual operation in the standby state to the location information and Along with the ID information, it is sent to the upper device. These pieces of information are managed by the host control device 3 through the fixed stations 6a and 6b. Based on the information, the control device 3 performs a process corresponding to the information on the call on the caller side. In other words, when there is an incoming call to a certain mobile station 7a, 7b, the control device 3 determines each of the two-way communication service and the paging service (message transmission) based on information obtained from each mobile station 7a, 7b in advance. Provide functionality to callers and callees.
[0015]
FIG. 3 is a control flow diagram of the reception-only mode according to the embodiment of the present invention. The operation of the control device 3 will be described below with reference to the flowchart of FIG.
[0016]
First, for example, an incoming request from the mobile station 7a to the mobile station 7b is received (11). When the communication mode of the called party (mobile station 7b) is the transmission / reception mode (12), the calling party and the called party perform normal two-way communication (16). When the callee side (mobile station 7b) is in the reception-only mode (12), the caller side (mobile station 7a) is notified that the destination (mobile station 7b) is in the reception-only mode (13). At this time, the right of service selection is left to the sender.
[0017]
Next, the control device 3 receives request information from the caller side (mobile station 7a) (14). When the caller side (mobile station 7a) cuts off the communication as it is, the incoming call history is sent to the callee side (mobile station 7b) several times at specific intervals. At that time, if the caller has notified the number, the information is sent face down. When the caller side (mobile station 7a) selects the message service by the DTMF signal, the message (fixed, free text) created by the caller side (mobile station 7a) DTMF signal is transferred to the network side (control device 3). ) And send a message to the called party (mobile station 7b) several times at a specific interval (15). When the caller side (mobile station 7a) selects and uses the answering function on the network side (control device 3) by the DTMF signal, the voice of the caller side (mobile station 7a) is transmitted to the network (control device 3). Is recorded (maintained), and a message having a recorded message is transmitted to the called party (mobile station 7b) several times at a specific interval (15). If the receiver (mobile station 7b) has an answering machine function, direct voice is transmitted to the receiver mobile station 7b several times at a specific interval (15).
[0018]
As described above, the paging service in the reception-only mode is sent from the network (control device 3) side to the called party side (mobile station 7b) several times at a specific interval, and the corresponding mobile station 7b itself manages the message. The code attached to
The frequency bands used in the transmission / reception mode and the reception-only mode are the same frequency band, but the channel groups are separated from each other.
[0019]
As described above, if the called party (mobile station) is in a place where a precision device such as a hospital or factory is used and the place is in the service area, the power is conventionally turned off and the mobile station is communicated during that time. It was not possible to instantly determine whether or not an error occurred, but if it is known in advance that there is a plan to be contacted, it will move to an available location at certain times, and the network side It was necessary to check the function or contact the prospective caller. By using this reception-only mode of the present invention, the callee can steadily receive communication regardless of the surrounding environment, and to some extent immediately. You can contact the caller. Further, if the caller is within the service area, the caller can easily make an emergency contact.
[0020]
In addition, mobile communication services can be used with peace of mind even when trains, buses, and automobiles that cannot be used in the moral transmission / reception mode are used.
[0021]
Even in situations where you do not want to respond immediately due to reasons such as a meeting or customer service in the service area, you can call back if there is an urgent need depending on the content of the caller.
[0022]
【The invention's effect】
As described above, according to the present invention, it is possible to quickly communicate regardless of the surrounding environment when the called party cannot respond morally within the service area. Since this function is a function in the same system, there is an effect that the communication cost can be reduced.
[Brief description of the drawings]
FIG. 1 is a configuration diagram of a bidirectional mobile communication system.
FIG. 2 is a control flow chart during standby according to an embodiment of the present invention.
FIG. 3 is a reception-only mode control flow diagram of one embodiment of the present invention.
FIG. 4 is an operation flowchart of one embodiment of the present invention.
FIG. 5 is a conventional control flow chart during standby.
FIG. 6 is a control flow diagram during conventional communication.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Exchange or public line network, 2 ... Communication control line, 3 ... Control apparatus, 4 ... Communication control line, 6a, 6b ... Base station or main | base station, 7a, 7b ... Mobile station or sub unit, 8 ... General subscriber Line, 9 ... general telephone.

Claims (3)

A mobile communication system for controlling communication between terminals for one or more mobile terminals ,
Communication mode storage means for storing the communication mode of each mobile terminal;
Terminal function storage means for storing presence / absence of an answering machine function for recording contents of transmission from other mobile terminals in each mobile terminal;
A paging function providing means for enabling message transmission by text from one mobile terminal to another mobile terminal;
Answering function providing means for recording the content of the transmission from the mobile terminal,
Communication control means,
The communication control means includes
If there is an incoming call to a mobile terminal having an answering machine function when the mobile terminal is set in the reception-only mode, the paging function, the answering machine function in the mobile communication system, or the mobile terminal Requesting the source mobile terminal to select one of the answering machine functions, providing the function selected in response to the request to the source mobile terminal,
For a mobile terminal that does not have an answering machine function, if there is an incoming call when the mobile terminal is set to receive-only mode, select either the paging function or the answering machine function in the mobile communication system. A mobile communication system characterized by requesting the mobile terminal of the transmission source and providing the function selected in response to the request to the mobile terminal of the transmission source . In moving body communication system according to claim 1,
When the communication control means provides the paging function to the source mobile terminal, the communication control means repeatedly transmits the message transmitted from the source mobile terminal to the destination mobile terminal an arbitrary number of times. A mobile communication system. In moving body communication system according to claim 1,
When the communication control means provides an answering machine function in the mobile communication system to the source mobile terminal, the communication control means sends a message to the destination mobile terminal an arbitrary number of times. A mobile communication system characterized by being repeatedly transmitted .

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