JP2939511B2 - Mobile phone 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

Description: TECHNICAL FIELD The present invention relates to a micro-zone type mobile phone system.

(Prior art and its problems) NTT's car telephone system is currently used as a telephone communication system capable of making calls and receiving calls by moving anywhere in a service area. NTT also provides mobile phone services using this network. On the other hand, with the spread of cordless telephones, the cordless telephone system has been expanded, and a private mobile telephone device as a cordless telephone system as shown in FIG. 1 can be realized. This frequency is 250 /
It is a small zone system (micro zone system) with a service radius of about 50 m for duplex using 380 MHz, 89 channels including control channels, and low power of 10 mW antenna power. This system consists of a radio system controller, a fixed radio station, and a mobile phone. Each element of this configuration will be briefly described.

Mobile phone: Access fixed wireless station via wireless line,
It has a function of automatically performing location registration in a fixed wireless station or a wireless system controller. It has a function of registering a location with another fixed wireless station or a radio system controller as the mobile phone moves, and changing the location registration. Incoming and outgoing calls can be made from any location within the service area.

Fixed wireless station: An incoming call and a telephone call can be performed by converting a downlink signal from a wireless system control device into a signal of a wireless line and transmitting the signal to a mobile phone. On the other hand, by transmitting and demodulating the signal of the uplink radio circuit from the mobile phone, and transmitting the signal to the radio system controller through the organic line, it is possible to perform a calling operation and a call by calling.

Radio system controller: The radio system controller is a fixed radio station that covers the radio zone where the mobile phone is located and the automatic private branch exchange PABX that has a one-to-one correspondence with the mobile phone.
This is a device that forms a communication path by interconnecting an extension and an extension at the time of outgoing / incoming calls.

In this way, a mobile phone system can be realized at hand.

In a mobile phone system that is an extension of the cordless telephone system, fixed wireless stations are installed outdoors, for example, at 100 m intervals because their radio wave propagation distance is short. Also, indoors, one or more units are installed for each floor. Furthermore, even in places where radio waves do not easily propagate, such as in tunnels and underground shopping malls,
By arranging a plurality of fixed wireless stations as appropriate, it is possible to make a good call anywhere. By installing a large number of fixed wireless stations in this way, dead zones for radio waves are eliminated, and good calls can be secured anywhere and anytime. Such a micro-zone system having a short radio wave range uses a small number of frequencies repeatedly, so that the use efficiency of the radio wave is enhanced and will be used effectively in various fields in the future.

However, in this system, many fixed wireless stations are installed because it is a micro zone system, but there is a tendency that it is actually used only at a specific time in a specific place, and "anywhere" is secured There was considerable waste, though unavoidable.

On the other hand, although mobile phone holders carry the mobile phone only for the purpose of talking, they often do not use it at once once out of the office. In view of this, there is a serious problem that the mobile phone is gradually not carried around, and the whole system may be gradually used.

(Objects of the Invention) In view of the above, the present invention makes efficient use of a fixed wireless station other than during a call, and provides voice service according to a request from a mobile phone. It is an object of the present invention to provide a mobile phone system capable of improving facility utilization efficiency and improving service functions of the system.

(A Configuration and Operation of the Invention) In order to achieve this object, a portable telephone system according to the present invention includes a fixed wireless station for mutually converting a signal on a wired line and a signal on a wireless line, and the fixed wireless station and an acrobahn system. A mobile phone capable of satisfactorily communicating with the wireless line within a corresponding small wireless service area in a range of at most about 100 m where the fixed wireless station is located, and the solid-state wireless station connected to the fixed wireless station by the wired line. A mobile telephone system of a micro zone system including a radio system control device that supervises a station, wherein the fixed radio station includes message information necessary for a predetermined service including a guidance service for the corresponding small radio service area. And a voice storage unit of each fixed radio station distributed and arranged according to a predetermined special connection request from the mobile phone. Registration of voice or data for the predetermined service or reading of the registered voice or data from the voice storage unit affects the predetermined service on wired traffic through the wireless control device. The system is configured to be able to be executed individually via the wireless line for each of the wireless service areas.

Thus, in the portable telephone system of the present invention, as in the above-mentioned extended cordless telephone system, since the radio service area of one fixed radio station is a small micro zone, it is necessary to eliminate the dead zone and thus a large number of mobile stations are required. A fixed radio station is located. Each fixed wireless station can provide a detailed service by providing a message service such as voice according to a request from a mobile phone. For example, when a person carrying a mobile phone gets lost, when a connection request is made with a special number other than for a call, the nearest fixed radio station provides, for example, voice recording of the street address and time by recording in advance. be able to. In a building, guidance on entertainment, emergency exits, sales floors, and the like on each floor is also effective. Another service function is that the voice message service allows the user of the mobile phone to record and register a voice message addressed to a specific party, so that the other party in the same service area can hear the caller's message. . This is useful for meeting people.

FIG. 2 shows a configuration diagram of a fixed wireless station according to the present invention,
FIG. 3 shows the processing flow. In FIG. 2, the fixed radio station comprises a network controller (NCU), a transmitter (TX), a receiver (RX), an antenna duplexer (DUP), a controller (CONT), and a storage device (NEM). The difference from a general fixed radio station is that it has a recording device MEM connected to the controller CONT. The storage device MEM has a voice storage unit for storing voice and data. This audio storage unit may be a mechanical tape recorder, but in recent years the development of solid-state semiconductor devices has been remarkable, and small, low power consumption, large capacity ICs are commercially available at low cost. It can be easily realized.

Next, the control will be described. FIG. 3 is a control flow of the fixed wireless station. Here, for example, three modes are set. "# 3" as phone special number in erase mode, "###"
"4" is a read mode, and "## 5" is a write mode. First, when there is a call from one mobile phone on the control channel, the fixed wireless station determines what type of command it is. In the case of a general call, since no special command is attached, the fixed wireless station switches to a call channel and starts a call. If the command is a service command,
The processing according to the request is performed. This will be described in detail below.

(A) First, the write command will be described. Less than,
Describe mainly the fixed wireless station. The mobile phone dials, for example, "## 5" when used for writing. The fixed radio station accepts the request and inquires whether it is written to the general public or to a specific individual. It is preferable that this inquiry be made using a voice recorded in advance in an IC or the like. On the other hand, for example, if the mobile phone presses "1",
When "2" is pressed, it is addressed to the general public. Now, assuming that an individual addressed to "1" is selected from the mobile phone, an inquiry is made as to who is addressed by voice recorded from the fixed wireless station. For example, since the mobile phone sends the mobile phone number of the other party as the destination, the fixed wireless station stores the number. Next, a message is accepted, and when the dial “9” is sent, for example, the process ends. Since the mobile phone sends its own ID number every time a radio wave is sent, the fixed wireless station can immediately determine who sent the ID number.

When the above-mentioned writing is addressed to the general public, an inquiry is made for a password. This is to prohibit anyone from freely writing information to the general public. The fixed wireless station searches for a file registered in advance and, if there is a number corresponding to the password encryption, inquires about the type of the message. For example, a message that can be used for the following service is sent out. "1": Guide to the street address of the place,
"2": Intersection name of the place, "3": Information on building floor sales floor / store, "4": Information on special sales, souvenirs, entertainment, "5": Information on telephone numbers of nearby major institutions,
"6": tourist attractions information, "7": weather forecast information,
"8": fixed wireless station number guidance and the like. After this message is selected and the next message is accepted, for example, when the dial “9” is sent, the process ends. Since the mobile phone sends its own ID number every time it sends out radio waves,
It is the same as in the case of personal mail that the fixed radio station immediately determines who sent the mail.

(B) In the case of erasing, for example, a number “## 3” is assigned. To delete a registered message from the mobile phone, dial "## 3". For example, the fixed wireless station is addressed to an individual when the mobile phone presses "1" and to a general address when the mobile phone presses "2". Assuming that an individual 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 destination, the fixed wireless station deletes this after confirming whether the caller and the receiver are correct.

When addressing to the general public, it is not convenient for anyone to be able to delete freely, so ask for a password as in the case of writing, confirm that it is a registered number, and then ask the name of the file to be deleted next, Erase according to the answer from the telephone. The registration of the personal identification number in the fixed wireless station may be further performed by a special number, or may be performed by connecting a hard wire to the fixed wireless station.

(C) In the case of reading, for example, "##
4 "is selected. The fixed wireless station receives this number and, when there is no personal e-mail addressed to the accessing mobile phone, or after sending out the e-mail addressed to the individual, guides the same service class as in the case of writing by voice registered in advance. I do. The fixed radio station receives this service segment from the mobile phone and sends out a voice message accordingly. After the transmission, an inquiry is made to the mobile phone as to whether or not to continue, the response is obtained, and it is determined whether to end or continue. In the case of mail addressed to an individual, there is also a method of automatically deleting the audio file after reading the mail.

In FIG. 2, only one set of transceivers of the fixed wireless station is shown, but if a plurality of transceivers are installed, this service can be received even when one set is talking. When a plurality of transceivers are installed, the sound storage unit may be installed for each set of transceivers, or one may be shared.

Although the above description has been made with respect to voice, data can be similarly registered, deleted, and read.

When the fixed wireless station number is known, it goes without saying that the same fixed wireless station can be selected and designated from a telephone set outside the service area of the fixed wireless station, and the same writing, erasing, and reading can be performed.

With the above configuration, for example, street address guidance or intersection guidance in a land that is unknown is extremely effective. 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, so that detailed guidance is possible and useful.

In department stores and buildings, detailed guidance services such as floor guidance, sales floor guidance, emergency exit guidance, and entertainment guidance can be provided for each floor.

Voice registration is especially effective for meeting in front of a station. That is, when a detailed place cannot be designated, or when the time is changed, if voice registration is made, a contact can be made without worrying about a waiting partner, and each other can feel safe.

When there is a visitor, by registering the guidance at a fixed radio station at a key point on the route, the visitor can ask the visiting home while listening to this.

Weather forecast and time services are also effective methods. Since these services do not use any radio system controller and are processed only by fixed radio stations, they do not affect wired traffic at all. In addition, since no wireless system control device is used, a high-speed response is possible without requiring time for inquiry from a fixed wireless station, which is an important point of service.

(Effects of the Invention) As described above, according to the present invention, writing, reading, and erasing of voice or data can be performed for each fixed wireless station, so that functions can be significantly increased in addition to general calls. I can do it.

In addition, since processing is performed for each distributed fixed wireless station without performing collective control by the wireless control device, in the event of a failure, only the failed fixed wireless station becomes unusable, and the entire system is damaged. It has the advantage of minimal damage because there is no damage.

Furthermore, the most effective thing is that these services will be provided, and the value of using mobile phones will increase dramatically. Users will always carry their phones without giving up. Functioning steadily.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a portable telephone system developed from a cordless telephone system, FIG. 2 is a block diagram showing a configuration example of a fixed radio station used in the present invention, and FIG. 3 is for operating the system of the present invention. 9 is a flowchart showing the operation of writing, reading, and erasing of the data. PBX… Private branch exchange, RCE …… Radio system controller, FRX ……
Fixed radio station, PTEL… Mobile phone, TEL… Wired phone, NCU… Network control unit, TX… Transmitter, RX …… Receiver, CONT… Controller, MEM… Storage device, DUP… Antenna duplexer.

Claims (1)

(57) [Claims] 1. A fixed radio station for mutually converting a signal of a wired line and a signal of a radio line, and a small radio within a range of at most about 100 m where the fixed radio station and the fixed radio station of the micro zone system are located. A micro-zone type mobile phone comprising: a mobile phone capable of satisfactorily communicating with the wireless line in a service area; and a wireless control device connected to the fixed wireless station and the wired line to control the fixed wireless station. The fixed wireless station has a voice storage unit for storing message information necessary for a predetermined service including a guidance service related to the corresponding small wireless service area, and the predetermined radio signal from the mobile phone. Registration of voice or data for the predetermined service in the voice storage unit of each fixed radio station distributed in response to a special connection request or The predetermined service by reading out the registered voice or data from the voice storage unit does not affect the wired traffic via the wireless control device individually for each of the wireless service areas via the wireless line. A mobile phone system configured to be able to execute.