JPH0374998A - Portable telephone system - Google Patents

Abstract

PURPOSE:To improve the installation utility efficiency and the service function by utilizing a fixed radio station not in busy state so as to apply the voice service on the request from a portable telephone set. CONSTITUTION:A fixed radio station consists of a network control section (NCU), a transmitter (TX), a receiver (RX), an antenna multicoupler (DUP), a controller (CONT) and a storage device (MEM). For example, when a person carrying a portable telephone set loses his way and requests connection by using a special number except for speech, a nearby fixed radio station guides an address or a time recorded in advance in voice. Moreover, an opposite party in a same service area can hear a caller message by using the voice message service where a possessor of a portable telephone set records and registers a voice message to a specific opposite party and this system is effective for a waiting or the like.

Description

DETAILED DESCRIPTION OF THE INVENTION (Technical Field to Which the Invention Pertains) The present invention relates to a microzone type mobile phone system.

(Prior art and its problems) NTT's car phone system is currently available as a telephone communication system that allows users to make and receive calls anywhere within a certain service area. N1T also uses this network to provide mobile phone services.

On the other hand, as cordless telephones have become widespread, cordless telephone systems have been expanded, and it has become possible to realize a local mobile telephone device as a cordless telephone system as shown in FIG. Is this frequency 250/380? 1Hz, has 89 channels including the control channel, and has a duplex service radius of 50 using a low antenna power of 10n+-.
This is a small zone method (micro zone method) of about 1.5 m.

This system consists of a radio control device, a fixed radio station, and a mobile phone. Each element of this configuration will be briefly explained.

Mobile phone: Has the function of accessing a fixed wireless station via a wireless line and automatically registering its location with the fixed wireless station or wireless system control device. It has the function of registering the location with another fixed wireless station or wireless system control device and changing the location registration as the mobile phone moves.

Call operations can be made or received from any location within the service area.

Fixed wireless station: A station that converts the downlink signal from a wireless system control device into a wireless line signal and sends it to a mobile phone, allowing incoming calls and telephone conversations. On the other hand, by receiving and demodulating signals on an uplink wireless line from a mobile phone and transmitting the signals to a wireless system control device via a wired line, it is possible to perform an outgoing operation and make a call.

Wireless system control device: The wireless system control device is a fixed wireless station that covers the radio wave zone where the mobile phone is located and an automatic private branch exchange PAB that has a one-to-one correspondence with the mobile phone.
This is a device that forms a communication path by interconnecting the X extension line when making and receiving calls.

In this way, mobile phone systems have become readily available.

In a mobile phone system that is an extension of a cordless phone system, fixed wireless stations are installed at intervals of, for example, 100 meters outdoors because their radio wave propagation distance is short.

Indoors, one or more units are installed on each floor. Furthermore, by installing a plurality of fixed wireless stations as appropriate, it is possible to make good calls anywhere, even in places where radio waves are difficult to propagate, such as inside tunnels or underground malls. By installing a large number of fixed wireless stations in this way, there are no dead zones of radio waves, and it has become possible to ensure good communication anywhere and at any time. Microzone systems like this, which have a short range of radio waves, use a small number of frequencies repeatedly, increasing the efficiency of radio wave use, and will likely be used effectively in a variety of fields in the future.

However, since this system uses a microzone system, a large number of fixed wireless stations are installed, but their use tends to be limited to specific locations and at specific times; Although it was unavoidable, there was considerable waste.

On the other hand, mobile phone owners carry their mobile phones with them only for the purpose of making calls, but they often do not use them at all when they go out.Not only do they have low usage efficiency, but they also have problems such as ``carrying around things that get in the way.'' From this point of view, we are facing a serious problem in that people are gradually not carrying around their mobile phones and the entire system may gradually become obsolete.

(Purpose of the Invention) In view of the above points, the present invention improves the equipment utilization efficiency of the entire system by efficiently utilizing fixed wireless stations other than during calls and providing voice services in response to requests from mobile phones. The purpose of this invention is to provide a mobile phone system that can improve the service functions of the system.

(Structure and operation of the invention) In order to achieve this object, the mobile phone system of the present invention uses a micro zone system in which the wireless service area of one fixed wireless station is small, similar to the above-mentioned expanded cordless phone system. Therefore, a large number of fixed wireless stations are installed in order to eliminate dead zones. Each of these fixed wireless stations can provide detailed services by providing voice and other message services in response to requests from mobile phones. For example, when a person carrying a mobile phone gets lost and requests a connection using a special number other than for making calls, the nearest fixed wireless station will provide a pre-recorded audio guide, such as the address and time of day. can do. Inside a building, it is also effective to provide information on events, emergency exits, sales areas, etc. on each floor. Other service functions include a voice message service that allows the owner of a mobile phone to record and register a voice message to a specific recipient, allowing other recipients within the same service area to listen to the caller's message. . This is effective for meetings, etc.

FIG. 2 shows a configuration diagram of a fixed wireless station according to the present invention, and FIG. 3 shows its processing flow. In Figure 2, the fixed wireless stations are a network control unit (NCU) and a transmitter (TX).

Receiver (RX), antenna duplexer (DUP), controller (
CONT) and a storage device (MEM). The difference from a general fixed wireless station is that it has a storage device MEM connected to a controller C0NT. This storage device MEM has an audio storage section that stores audio and data. This audio storage unit may be a mechanical tape recorder, but solid-state semiconductor devices have made remarkable progress in recent years, and small, low-power, large-capacity ICs are commercially available at low prices. It is easily achievable.

Next, control will be explained. FIG. 3 is a control flow of a fixed wireless station. Here, for example, three modes are set. "r##3" as telephone special number in erase mode, r##4
Let J be the read mode and "##5" be the write mode. When a mobile phone first makes a call on the control channel, the fixed wireless station determines what type of command it is.

Note that in the case of a general call, no special command is attached, so the fixed wireless station switches to the call channel and starts the call. If the command is a service command, processing according to the request is performed. This will be explained in detail below.

(a) First, the write command will be described. below,
The description will focus on fixed wireless stations. When using a mobile phone for writing, for example, dial r##5J. The fixed wireless station receives this and inquires whether the message is addressed to the general public or a specific individual.

It is preferable to make this inquiry using a voice recorded in advance on an IC or the like. On the other hand, for example, if the mobile phone presses rlJ, it will be sent to an individual, and if it presses "2", it will be sent to a general address. Now, if the cell phone selects "1" to be addressed to an individual, a voice recorded from the same fixed wireless station will be used to inquire as to who it is addressed to. The mobile phone sends, for example, the mobile phone number of the destination party, so the fixed wireless station stores this. Next, accept the message,
For example, the process ends when dial "9" is sent. Every time a mobile phone sends out a radio wave, it sends out its own ID number, so a fixed wireless station can immediately determine who sent the signal.

If the above message is for the general public, ask for the PIN number. This is to prohibit anyone from posting information to the general public as they wish. The fixed wireless station searches for a file that has been registered in advance, and if there is a number that corresponds to this password, it inquires about the type of message. For example, messages that are compatible with the following services are sent out. "1": Street address information for the location, "
2”: Name of the intersection at the location, “3”: Pill floor
Sales floor/store information, ``4'': Information on special sales, souvenirs, and events, ``5j: Information on telephone numbers of nearby major institutions, ``6
”: Tourist attraction information, “7”: Weather forecast information, “8”:
Fixed wireless station number guidance, etc. After this message is selected and the next message is accepted, the process ends when, for example, dial "9" is sent. Since a mobile phone sends its own ID number each time it sends out radio waves, the fixed wireless station can immediately determine who sent the message, just as in the case of personal mail.

(b) In the case of erasure, for example, a number r##3J is assigned. If you want to delete a message that has already been registered from your mobile phone, dial r##3J.

For fixed wireless stations, for example, if you press "1" on your mobile phone, it will be for an individual, and if you press "2", it will be for the general public. Now, if a personal address is selected from the mobile phone, an inquiry is made as to who the address is. Since the mobile phone sends the mobile phone number of the recipient, the fixed wireless station erases it after confirming that the sender and recipient are correct.

When sending to the general public, it would be a problem if anyone could erase it freely, so just as with writing, ask for the PIN number, confirm that it is a registered number, then ask for the name of the file to be erased, then use your mobile phone to Delete according to the answer from. The password may be registered to the fixed wireless station by further registering it with a special number, or by connecting a hard wire to the fixed wireless station and writing it.

(c) In the case of reading, from the mobile phone, for example, “##4
” is selected. When the fixed wireless station receives this signal, if there is no personal mail addressed to the mobile phone that accessed it, or after sending the mail addressed to the individual, it sends the same service class as in the case of writing above using a pre-registered voice. invite. The fixed radio station receives and receives this service classification from the mobile phone and sends out the corresponding voice message. After sending, the mobile phone is asked whether or not to continue, and based on the answer, the user decides whether to end or continue. For emails addressed to individuals, there is a way to automatically delete the audio file after reading it.

Although only one set of transceivers at a fixed wireless station is shown in Figure 2, if multiple transceivers are installed, this service can be received even when one set is on the line. When a plurality of transceivers are installed, an audio storage section may be installed for each set of transceivers, or one audio storage section may be shared.

Although the above description was about audio, data can also be registered, erased, and read out in the same way.

Needless to say, if you know the fixed wireless station number, you can select and designate the fixed wireless station from a telephone outside the fixed wireless station's service area and write, erase, and read data in the same way.

With the above-described configuration, it is extremely effective, for example, to provide street address guidance or intersection guidance in unfamiliar areas. Although this was absolutely impossible with the conventional large zone system with a radius of 3 to 5 km, it is possible to provide local services within a range of at most 100 m, making detailed guidance possible and useful.

Also, floor information in department stores and buildings.

Detailed guidance services such as sales floor guidance, emergency room guidance, and event information can be provided on each floor.

Voice registration is particularly effective when meeting people in front of a station.

In other words, if you are unable to specify a detailed location, or if you change the time, by registering your voice, you can contact the person you are meeting without worrying about it, and both of you can feel at ease.

When there is a visitor, by registering directions to fixed wireless stations at important points along the route, the visitor can listen to the guide and locate the house to be visited.

Weather forecast and time services are also effective methods.

These services do not use any wireless system control equipment and are processed only by fixed wireless stations, so they do not affect wired traffic in any way. Also, since it does not use a wireless system control device, it does not require time for inquiries from fixed wireless stations and can provide a high-speed response, which is an important point of service.

(Effects of the Invention) As explained above, according to the present invention, since it is possible to write, read, and erase voice or data for each fixed wireless station, functions other than -i calls can be significantly increased. I can do it.

In addition, since the radio system control equipment does not control the system all at once, but processes each distributed fixed radio station, in the event of a failure, only the failed fixed radio station becomes unusable, and the entire system is damaged. This has the advantage of causing minimal damage.

Furthermore, the most effective thing is that these services will dramatically increase the utility value of the mobile phone, and the user will always carry the phone with them without letting go of it, so it will no longer function as a phone. The goal is to steadily fulfill its functions.

[Brief explanation of drawings]

Fig. 1 is a block diagram showing a mobile phone system that is an advanced version of the cordless telephone system, Fig. 2 is a block diagram showing a configuration example of a fixed wireless station used in the present invention, and Fig. 3 is a block diagram showing a configuration example of a fixed wireless station used in the present invention. 3 is a flowchart showing operations of writing, reading, and erasing. PBX...Yokonai exchange, RCE...Radio system control equipment, FRX...Fixed wireless station, P station...Mobile phone, Station...Cable telephone, NCU...Network control unit, TX...・Transmitter, RX...receiver, C0NT
...Controller, MEM...Storage device, DUP...
Antenna sharing device. 3rd Barrel ■ @Komi 7-h” (sas) ■ ;11 Yushi-to (#ヰ3) 3 (2) ■ Zhanyu Vinimo-do (#ヰ4)

Claims (1)

[Claims] A fixed wireless station that mutually converts signals on a wired line and a signal on a wireless line, a mobile phone that can communicate well with the fixed wireless station over the wireless line, and In a micro zone type mobile phone system, the fixed wireless station has a storage unit, and the fixed wireless station has a storage unit, and the wireless control device is connected to the wireless system control device and controls the fixed wireless station. A service for registering voice or data in the voice storage unit or reading out the registered voice or data from the voice storage unit can be executed individually for each fixed wireless station without going through a system control device. A mobile phone system comprising: