JPS63109619A - Portable telephone system - Google Patents

Abstract

PURPOSE:To allow the portable telephone set to be moved to an optional location connected to a general public telephone network or the like and to attain outgoing/incoming call by giving its own identification information to the (i)-th kind and the (i-1)th kind exchanges and applying dialing only to its own identification information given to exchanges of the i-th kind or below when the telephone set resides in an area managed by the i-th kind exchange. CONSTITUTION:In the portable telephone set system having a function to be registered to the i-th kind and the (i+1)th kind (i=1, 2, 3,...) managing exchanges (KTC) managing the home area, its own identification information given respectively to the i-th kind and (i-1)th kind exchange is included as its own identification information of plural portable telephone sets 2. When a caller is placed in the area managed by the i-th exchange, as its own identification information of a portable telephone set 2 being a called party among plural portable telephone sets 2, the channel between the caller and the caller party is set by the dial operation of its own identification information only given to the exchange resident in the hierarchy below the i-th kind. Thus, when and where outgoing/incoming call is given such as a home, a premises in an exhibition or a pedestrian on a road.

Description

DETAILED DESCRIPTION OF THE INVENTION 3.1 (Technical Field of the Invention) The present invention relates to a mobile telephone system that is portable and capable of making and receiving calls at any location connected to a general public telephone network, private telephone network, etc.

3.2 (Prior art and its problems) Various types of mobile communications are currently in use in Japan, and among these, telephones that mainly transmit voice are used in various businesses such as coastal marine telephones, car telephones, cordless telephones, and factories. Communication communications are used only for internal purposes. These various mobile communications systems are operated independently, and it is impossible to make a call by bringing a cordless telephone into a car, for example. This is obvious from the fact that there are many differences, such as the frequency used and the control method of the control channel being different, and the required input electric field value of the opposing receiver being unsatisfied.

Cordless telephones generally consist of a portable telephone and a parent device that is connected to the telephone via a wireless line and to an exchange via a wired line. Furthermore, this phone and the parent device connected to it usually have a specific affiliation relationship, and the phone can communicate with parent devices other than that specific parent device even if they are located within a short distance where wireless communication is possible. Even if it is, it is impossible to communicate, and
Even if a telephone other than the telephone that is in a particular combination with the particular parent device exists within a short distance where wireless communication is possible, communication is impossible.

This is natural in a sense, and if the above impossible connection were made possible without any conditions, then
This may result in an erroneous connection, which may have negative effects such as erroneous billing or intentional transfer of charges to one's own telephone to another telephone.

If these difficulties could be overcome technologically and each person owned a single mobile phone, they would be able to make calls anytime, anywhere, from anywhere, and even from any location. The advent of a mobile telephone capable of receiving and receiving calls has long been a highly anticipated goal.

In terms of practical applications, the above aspirations have been realized in Japan today, where there are over 40 million public telephone terminals, and if you want to make a call while walking down a street, public telephones are installed everywhere. Furthermore, even in a society where you can make calls without any inconvenience, such as a car phone when you ride a car, a train public phone when you ride the Shinkansen, and a domestic ship phone when you are on a ship, the following still exist: This is for a reason.

This is because people want to own a mobile phone as their personal property and use it as their own phone. In other words, when you go to another company (someone's home), you may find it difficult to refuse someone else's phone call for various reasons, or if you can't find a public phone on the street in the city, or if you don't have money or a telephone. If you don't have a credit card, the red phone in front of the store becomes unusable after midnight, and it can be difficult to get to a place with a public phone in a crowded place such as a baseball field or an event venue. It would be extremely convenient if you could use your mobile phone in the same way as the phone you have at home.

The same goes for incoming calls from other people.If you can receive calls from anyone you want at any time, no matter where you are, as long as you have your phone with you, then the convenience of the former method would be much better. It will probably be better.

That is, if you want to make a call while you are out, you can do so from a nearby public telephone, but you do not know when or if you will receive a call at a location other than your home or office. Additionally, if two people wishing to talk to each other are traveling in different locations, access may not be possible using traditional telephones.

In addition, not only can emergency notifications be made more quickly and more conveniently than the current system, but mobile phones would be even more convenient if they could be used as a credit function or as a substitute for certificates, as described below. Dew.

Even today, there is a deep-rooted desire for the ultimate mobile phone to appear.

As a method to satisfy the above desire, various system proposals have been announced, although they are not perfect systems.

The first is a proposal to provide a "personal telephone service" (IEICE Circuit and Information Study Group Material 1N82-21). A system based on this concept (called the PID concept) is as follows.

Figure 1 shows a conceptual diagram of a communication network based on the PID concept.

The subscriber is made to possess the personal number (PID) by writing it on a magnetic card, for example. The PID written on this PID card is shared even when a terminal (the terminal number is SID) is used with a landline telephone, a car telephone, a train telephone, etc., and is made public by putting it in a telephone number book, etc.

Landline phones, car phones, and all new terminals that will be developed in the future will have the ability to read the PID of a PID card and send that information to the communication network.

A centralized file, PF, is installed in the communication network to store subscriber information (SID during subscriber registration, billing information, etc.) corresponding to the PID, and the file is accessed and read from each terminal. A connection control function is provided to set up a line between calling and receiving terminals based on the receiving SID.

When each subscriber arrives at the location where the above terminal is located,
Register the incoming SID using the rD card. A person who wants to communicate with that subscriber can use the PID
When the call is dialed, the originating exchange accesses the PID file, reads out the SID that corresponds to the PID of the terminating subscriber, and transmits the call to the terminating terminal in the same way as in a conventional exchange connection. As is clear from this connection procedure, it is possible for the originating subscriber to make a direct and immediate call without knowing the whereabouts of the terminating subscriber.

Furthermore, if a call is made using a PID card, billing information is recorded in detail in the own PID file no matter which terminal is used, so there is no need to distinguish between public telephones and privately subscribed telephones.

If the above system is realized, it will be possible to make and receive calls from a fixed telephone to any location using its own PID if it is nearby. However, it is impossible to make or receive calls while moving, for example, while walking in a city area.

Furthermore, as shown in Figure 1, the centralized PID file (PF) is installed only at one location in the country, so the access traffic is heavy. For example, suppose that the file of a PID card holder living in Sapporo, Hokkaido is stored in Tokyo, which is a reasonable assumption since it is the only location in the country. Then, assume that the PID owner leaves his home, goes to a neighbor's house, and sends the PID information to a telephone terminal there. This information must then be sent to a central file in Tokyo and rewritten. That is, even though the PTD owner moves only a few tens of meters, data must be transmitted back and forth from Sapporo to Tokyo and from Tokyo to Sapporo (n-approved signal).

Since this kind of thing is carried out on a nationwide scale, it is a big disadvantage in terms of traffic volume and transmission costs.

Recently, a proposal for another method to solve these problems has been made (“Proposal of a mobile message communication method”, IEICE Communication Method Study Group Material C385-139 (1986, 1,
23)).

That is, according to the above-mentioned literature, it is extremely difficult to realize a mobile phone, which is the ultimate form of communication, and the following proposal is made.

That is, the following is proposed as a specific example of mobile message communication.

In the simple Aloha system with the basic configuration shown in FIG. 2, one uplink and one downlink channel frequency is assigned to each wireless zone. Messages destined for mobile stations are sent to the base station via the digital exchange of the fixed communication network, and are sequentially transmitted as packets from the base station. The called mobile station confirms that it has received the message correctly and sends a response signal back to the caller via the base station, and the caller confirms that the message has been delivered to the other party. The mobile station stores the message and notifies the recipient of the message.

The received signal reads the stored message.

Calls are randomly generated from mobile stations. Since the same frequency is used within the same zone, collisions occur with a certain probability. When there is no response signal, the calling party retransmits. Furthermore, if propagation conditions are poor and the signal cannot be received correctly, the base station detects an error and requests retransmission.

In other words, this method uses messages (a type of telegram) instead of voice, and is a proposal for recorded communication rather than real-time communication, so it does not satisfy the immediacy required for communication, and the details of the actual system configuration etc. will not be disclosed in the future. It has not been clearly stated as an issue to be considered.

Therefore, it seems that it will take time to realize this as it requires technical solutions.

Next, there is the following technology that slightly expands the area of the cordless telephone system using conventional technology (Japanese Patent Application No. 57-74
No. 143).

That is, this technology is configured to connect wirelessly to a master station wireless device provided at a subscriber line terminal of a wired communications switching network, and to connect to the wired communications switching network via this master station wireless device. In the cordless subscriber telephone device, the cordless subscriber telephone is provided with means for encoding and automatically transmitting a subscriber number different from the subscriber line number of the subscriber line,
Each exchange is equipped with a means for decoding to which exchange the cordless telephone belongs from the subscriber address of the cordless telephone, and transmitting the location information and billing summary information of the cordless telephone to the exchange to which the cordless telephone belongs. The above-mentioned switching equipment is characterized in that it is equipped with means for transferring incoming calls or for calculating charges based on the above-mentioned information.

However, this technology was invented assuming a service area within one district or part of a city, and when targeting a wide area such as the Kanto area, Chubu area, or the whole country, the amount of signal transmission is limited. This is similar to the above-mentioned "personal telephone service", with increased technical and economic benefits. In addition, although this technology achieves the wide area coverage of cordless telephones, there is also the complexity of providing a subscriber's line number and another subscriber's line number as the cordless telephone number.

Furthermore, a plan is being considered to provide a mobile communication system that would integrate the subscriber telephone systems of each mobile radio communication system and allow subscribers to connect to the communication network no matter where they are by having one type of device. (Refer to Japanese Patent Application Laid-open No. 151136/1983).

The purpose of this technology is to provide a mobile communication system that can economically reduce the subscriber equipment of the mobile communication system and economically eliminate areas where services are not available. That is, each mobile subscriber device is equipped with a car telephone radio base station, a mobile telephone radio base station, and a cordless telephone base unit connected to a terminal of this switching network, each of which is connected to one wired communication switching network. It is characterized by being configured so that it can be connected to either a base station or a master unit by setting up a wireless line.

However, with this proposal, for example, even if a cordless telephone subscriber gets into a car and tries to use the cordless telephone inside the car, even if it is possible to receive radio waves from the car phone base station, the radio waves emitted from the cordless telephone will not be transmitted to the base station. It is impossible to receive it. This is because the transmission power of a mobile phone for a car phone is currently 5m, while the transmission power from a cordless telephone is currently 6m.
This is because the level is as low as 1/800 of W.

If the transmission power of the cordless telephone is increased to about 5-5, it will be possible to receive the base station and make calls. However, the burden on the battery increases, the portable time of the cordless telephone is significantly reduced, and the battery capacity increases, resulting in an increase in size, making it inconvenient to carry and impractical. Therefore, it cannot be called a mobile phone, but rather a variation of a car phone.

Therefore, it is an inconvenient system that is far removed from the mobile phone system, which allows calls to be made anytime, from anywhere, and to anywhere.

The four proposals explained above can be considered approaches to mobile phone systems, but although they partially satisfy the ultimate mobile phone system, they are inconvenient for users, and further technological development is desired. Ta.

3.3 [Definition of terms] ■ Tamari 4 plates This is one of the main components of the present invention, and is carried by the user at all times and is used to make and receive calls by radio, facing the mobile phone master device described later. FIG. 4 (al shows an example of the configuration of a mobile phone.

The radio section is equipped with multi-channel access technology, interference detection function, etc., and is equipped with various functions to ensure high frequency usage efficiency and high-quality calls. Further, the call signal is analog or digitally modulated by the modulator and transmitted as a modulated wave with high privacy to the opposing mobile phone master device through space. Furthermore, the demodulator demodulates the audio signal by a process reverse to that of the modulator and transmits it to the receiver. The transmission power is approximately 61, which is approximately the same as the transmission power of current cordless telephones.

The mobile phone also has the function of displaying and storing the calling party's PID when receiving a call. The own mobile phone is given a self-identification number PID that is different from the ID attached to other mobile phones or terminals of other systems. It is sometimes abbreviated as PID.

Also, in some cases, multiple mobile phones may be installed for one landline phone as described below.For example, if each member of a family of five uses mobile phones with different PIDs in a house, Mobile phones will be installed. Of course, each of these mobile phones can be taken out of the house and used independently. In order to prevent use by a third party in the event of unauthorized borrowing or theft, a password may be provided and a key function may be provided.

It is paired with a mobile phone, and has almost the same functions as the cordless fixed phone currently provided by NTT, except for the following points. That is, in addition to wirelessly transmitting and receiving calls to a mobile phone used as a permanent location (home area), it can access any mobile phone, and has the function of registering, changing, and deleting their location.

FIG. 3(b) shows the block configuration of the fixed telephone.

In the present invention, since the subscriber line may be used by a third party, it is desirable that the subscriber line is a multiplex line that allows calls on two or more lines at the same time.

This can be easily realized if optical fiber cables or the like are used for subscriber lines. A fixed-line telephone may be housed in the same housing as a mobile telephone master device, which will be described below. A fixed telephone has self-identification information SID that is different from other fixed telephones, similar to the PID. It may be abbreviated as SID.0 In the main text, a fixed telephone in the home area of the mobile phone PID+ may be written as SID, -H or simply SID. In addition to the functions normally used as a telephone terminal connected to a PBX or a local telephone exchange (hereinafter referred to as a type 1 exchange) by wire, a landline telephone has the following additional functions.

■Display of the current location of the mobile phone (location registration location).

■ Alternate incoming call function when calls cannot be received on your mobile phone ■ Call forwarding function to your mobile phone! The device is located opposite the mobile phone mentioned above and is used for making and receiving calls by radio. This main device may be housed in the same housing as the above-mentioned landline telephone.

If functions are added to the current cordless telephone master device, which will be described later, it becomes a mobile phone master device. FIG. 4(b) shows its configuration diagram. There are cases where the abbreviation for mobile phone master device is written as SID. SID the mobile phone master device in the home area
It is sometimes written as +.

This is a telephone used by ordinary telephone subscribers, which is not a 21st U1 mobile telephone.

BX In addition to accommodating ordinary telephones in business offices, etc. and having telephone exchange functions, it also has the function of accepting, changing, and erasing location registration for mobile phones, and the function of making and receiving telephone calls. Also PB
It is also used to refer to an area with a spatial extent dominated by X or the hardware itself that implements telephone exchange functions. In this text, it may be included and used as a type 1 exchange.

It accommodates telephones within the subscriber area, such as regular residences, and handles calls originating from and arriving at the own subscriber area. In addition to having a telephone exchange function, the mobile phone also has a subscriber information processing unit (functions such as receiving, changing, and erasing location registration charges) and a function for making and receiving telephone calls. Furthermore, the voice dialing signal sent from the mobile phone (the signal generated by voice as 1, 2, san, etc. instead of the dial signal 1, 2, 9, 0) is identified and converted into numbers, and the phone It has AI (artificial intelligence) functions such as sending data back to the phone. It usually refers to a switch housed in a local telephone exchange, and when it refers to areas with spatial boundaries such as telephones and subscriber lines controlled by the station, or the hardware itself that realizes the telephone exchange function. Also used.

It is called a terminal station in NTT Telephone M4 (see FIG. 5(a)), and may be abbreviated as KTC-1.

In addition, when referring to telephones, mobile phones, etc. managed by a first-class exchange, we refer to fixed-line telephones, mobile phone master equipment, etc. that are connected to the first-class exchange through subscriber lines, and those installed opposite the same. Refers to mobile phones, general subscription telephones, etc. It is also used as a synonym for fixed-line telephones that also manage subordinate fixed-line telephones. Furthermore, the mobile phone has an interface with a first type wireless base station for wide area calling.

The higher level exchange means a second type or higher level exchange described below.

KTC-II: A first-class exchange that is located above multiple first-class exchanges and is under its own control.
In addition to having the functions of relaying calls between different types of exchanges, normal telephone calls made and received from exchanges other than one's own, and processing of subscriber information for mobile phones (location registration acceptance, change, deletion function, etc.) and telephone calls. Has calling/receiving functions. It also usually refers to a switch housed in a telephone exchange that encompasses an area that is a collection of multiple subscriber areas, and also refers to the area that has a spatial extent controlled by the same station and the hardware itself that realizes the telephone exchange function. Also used when In the NTT telephone network, it refers to a switch housed in a central office installed in each local city, and is sometimes abbreviated as KTC-n.

In addition, exchanges managed by (or subordinate to) type 2 exchanges,
When referring to a telephone set, etc., it includes a first type exchange connected to a second type exchange through a trunk line, and all terminals such as mobile phones managed by the first type exchange.

Further, the upper level exchange of the second type exchange means a third type exchange connected to the second type exchange by a trunk line, or a fourth to fifth type exchange connected to this by a trunk line. .

畢↓Chichitsu Exchange View (KTC-I
In addition to having the functions of relaying calls between different types of exchanges, normal telephone calls made and received from exchanges other than one's own, and processing of subscriber information for mobile phones (location registration acceptance, change, deletion function, etc.) and telephone calls. Has calling/receiving functions. It controls areas managed by Type 2 exchanges, including areas roughly grouped into prefectures, and it also controls areas with spatial extensions controlled by Type 3 exchanges, as well as the hardware itself that realizes the telephone exchange function. Also used to mean. In the NTT telephone network, it refers to switching equipment housed in central offices located in cities (70 cities) surrounding the prefectural capital, and KTC-III
It may be abbreviated as.

(KTC-IV) Calls between Type 3 exchanges that are located above multiple Type 3 exchanges and that are controlled by themselves, including areas that aggregate several central office areas, and ordinary calls from other than the same. In addition to relaying and exchanging functions for outgoing and incoming calls, it also processes subscriber information for mobile phones (location registration reception, modification, and deletion functions, etc.) and makes and receives telephone calls. It is also used to refer to a spatially expansive area controlled by a type 4 exchange or to the hardware itself that implements the telephone exchange function. Furthermore, it has an interface with a type 4 wireless base station for wide area calling of mobile phones and a car telephone exchange for the current car phone system. NTT
In the telephone network, it refers to a switch housed in a central office; KT
It may be abbreviated as C-IV.

In our country, the NTT network has Tokyo and Nagoya nationwide.

There are eight locations including Osaka.

Fudeko Toyomata Kaeki (KTC-V) Located above multiple Type 4 exchanges, it has relay and exchange functions for regular telephone calls from Type 4 exchanges, as well as processing subscriber information for mobile phones. (location registration reception, change, deletion functions, etc.) and telephone call/receive functions. Also the fifth
It is also used to refer to a spatially extensive area controlled by a telephone exchange or the hardware itself that implements telephone exchange functions.

It may be abbreviated as KTC-V. It also has an interface with a type 5 wireless base station (satellite) for mobile phone wide area calling.

In our country, it is desirable to have one location (Tokyo). It also has telephone exchange functions with foreign countries.

A mobile phone is usually used opposite a mobile phone master device as a communication partner, but in order to make it possible to receive calls in places with poor radio wave propagation or where there is no mobile phone master device nearby, etc. It is a base station. That is, by using the powerful radio waves transmitted from the above-mentioned base stations, even basements and underground malls in cities can be covered. The size of radio waves transmitted from the first type radio base station and the installation conditions are almost the same as those of the current paging radio base station.

Type 4 wireless base stations are used to receive calls from mobile phones installed in moving objects such as automobiles, trains, and airplanes that are moving at high speed. The size of the transmitted radio waves and installation conditions are approximately the same as those of the current paging radio base station.

Type 5 wireless base stations are installed inside satellites and can provide service to mobile phones used inside ships and aircraft flying over the ocean, and even in deep mountains such as the Japanese Alps.

These radio base stations send out paging signals under the control of the n-th type exchange that has an interface with each of them.

In addition, the ringing signal simply indicates an incoming call (ringing) on the mobile phone.
In some cases, a call is made to the nearest mobile phone master device, and in other cases, if there is no wireless equipment nearby and a call cannot be expected, communication information addressed to the called mobile phone is included in the ringing signal.

Interruption B ■ 1 Types 1 to 5 of each neighboring switch A function possessed within the switchboard that stores various information about mobile phone users (9 positions for incoming and outgoing calls) with the subscriber information storage section of the upper or lower switch. Registration 1 Sending/receiving, storing, and reading special information such as external credit information (information such as billing information).

Make changes, deletions, etc. The subscriber information storage unit is subdivided into
It is divided into three parts: (1) location registration information storage, (2) billing information storage, and (2) subscriber side special information storage. It may be abbreviated as MEM or memory section.

In addition, information such as the wireless channel number and Sl and D of the parent device that communicates with the other device is stored and changed in the mobile phone master device as well as in the external mobile phone, which has almost the same function as the subscriber information storage unit. and possesses the ability to erase.

Home area is a place where a mobile phone is permanently installed, and refers to an area with a radius of about 25 meters where it can communicate with a mobile phone parent device in a parent-child relationship. In FIG. 8(a), the shaded circle indicates the home area of the mobile phone PID+. Note that it is normal to have a fixed telephone set in the home area that is paired with a mobile telephone.

(This is not necessarily necessary.) Furthermore, all telephone charges used in the roaming area etc. will be charged to the mobile phone or landline telephone installed in the home area.

loam area Area when using a mobile phone outside the home area.

Roam areas are subdivided into the following five types depending on how far away they are from the home area.

6-PBX The same PBX that accommodates the home area of the ROHM area mobile phone.
areas other than the home area. Usually used by mobile phones used within companies. The area indicated by the broken line in FIG. 8(a) is the roam area within the same PBX.

When using a mobile phone in an area other than the home area that is equivalent to the local telephone office where the first class ROHM area landline phone is accommodated (more precisely, the area occupied by the terminal housed in the first class exchange) area. The area indicated by the broken line in FIG. 8(a) indicates the first type roam area.

General residential mobile phones are often used in this area.

It is sometimes referred to as the KTC-1 roam area.

2. The area where a mobile phone is used in areas other than the 1st ROHM area, which are managed by the ROHM area central office (more precisely, the 2nd type exchange).

It is sometimes referred to as the KTC-II roam area.

The area surrounded by the broken line in FIG. 8(b) indicates the second type roam area.

3rd ROHM Area The area where a mobile phone is used in areas other than the 2nd ROHM area managed by the 3rd ROHM exchange.

It is sometimes referred to as the KTC-m roam area.

The area surrounded by the broken line in FIG. 8(C) indicates the third type roam area.

夷 11th ≧ -shi L child l Area when using a mobile phone in an area managed by a Type 4 exchange other than the Type 3 Roam area.

It is sometimes referred to as the KTC-IV internal roam area.

The area surrounded by the broken line in FIG. 8(d) indicates the fourth type roam area. If it is installed on a car, aircraft, or ship and registers its location, it is considered to be in a Type 4 Roam Area.

5th ROHM Area Area where a mobile phone is used in areas other than the 4th ROHM area managed by the 5th ROHM exchange. In our country, this area covers all of Japan (excluding Type 4 roaming areas).

It is assumed that a mobile phone owner in Japan is also in this area when using the mobile phone in a foreign country.

Cordless phone 8-mode mobile phone This refers to a case where a current cordless phone system parent device (also called a connection device) is used as a wireless device that communicates with a mobile phone.

Of course, in this case, it is assumed that functions have been changed or added to the parent device of the cordless telephone so that the mobile telephone of the present invention can exhibit the intended communication functions.

Pager mode 4) - = Informs the mobile phone that there is an incoming call by using the current pager's paging radio waves as a downlink control channel, and in some cases also transmits information on the origin of the mobile phone to the paging radio waves. This is when sending.

Φ This refers to cases in which a P@-type mobile phone in heavy message mode is brought into a car that is subscribed to the current car phone system, and communication is performed by connecting it to various equipment used for car phones.

Of course, in this case, it is assumed that functions have been changed or added to the car phone system so that mobile phones can be used.

Each of the above four mobile phone modes refers to a case where communication from the mobile phone of the present invention is possible using a part of the radio telephone equipment installed in each mobile body. Of course, this assumes that the current equipment has had its functions changed or added.

A Q-type mobile phone in the mobile phone call mode is connected to a mobile phone wide area call type N (n-1, n=
4 or 5) It means that it is in a state where it can receive radio waves transmitted from a wireless base station.

Do not use a T-band mobile phone in I (ownership) mode as a communication terminal for making calls (credit, various certificates, or withdrawing cash from a bank account, etc.). This refers to the case where the mobile phone is used as a cash card.Of course, the communication function of the mobile phone is effectively utilized in these cases as well.

3.4 (Objective of the Invention) The present invention provides a new concept that can be approximated as an ultimate mobile phone that can be realized in the relatively near future based on a new concept for the partially satisfied mobile phone system described above. This is to realize a standard mobile phone system.

3.5 (Structure and operation of the invention) 3.5.1 Functions and characteristics of each main part (device) constituting the present invention Or, it shows the configuration when realized in a building such as an office. The first type switchboard (KT
C-1), which is connected to the mobile phone master device in the house on the lower right side of the figure by a subscriber line.

A mobile phone master device, etc., which is the main component of the present invention, is installed in a house, and this and the mobile phone are connected wirelessly, and the fixed phone is connected by wire.

Regarding the former, the upper part of Figure 3 also shows the main components of the mobile phone master device and the inside of the mobile phone, and the frequency band used may be any frequency as long as it is suitable for mobile communication, but here, for the time being, Same as NTT cordless phone 250/
400 MIIz band.

In Figure 3 (bl is a block diagram showing the configuration of a landline telephone), the mobile phone master device is connected to the left side of the hybrid H.The configuration of the landline telephone will be explained below. (middle), dial and signal transmitter 1
is used when making a call, but it also includes a transmitter T, a talkie section for service in the case of no one's presence, and an SID so that a dial signal can be sent with a single touch when making a call.
, a PID storage unit is attached. Further, the dial and the signal sent from the signal transmitting section are not only stored in the calling information storage section 3 but also displayed on the display section 10 under the control of the control section 4. It is also provided for transferring incoming calls using the information (STD, PID) of the location registration destination when absent. On the other hand, incoming calls to this landline phone are either when the power switch of the mobile phone installed as a companion to this phone is off, that is, it is not in a standby state, or when the phone is not in the home area and is somewhere in the roaming area. This is done when the mobile phone is in the area but cannot receive calls to the mobile phone due to the power being turned off or for some other reason, and the calls are forwarded at a certain timing. in this case,
The signal receiving section 2 operates, the calling bell B rings, and when the user picks up the receiver, the user can hear the other party's voice from the receiver R, and a call is started. Further, the incoming call information received as described above is stored in the incoming call information storage section.

In this method, the system is configured so that the mobile phone master device can communicate with any mobile phone in the callable area, so if you are at home and try to use a mobile phone PID+ or a landline phone (SID), Considering the amount of traffic, the possibility of this occurring is small, but it does occur with a certain probability that the mobile phone master device facing this is communicating with another (third party) mobile phone. Therefore, there is no problem if there are two or more call channels, but in the introduction period, there may be only one call channel, and in this case, the display on the fixed telephone
A message indicating that a call cannot be made is displayed on O. This is because when the mobile phone main device is in use, a busy signal is sent from the subscriber line interface circuit in the mobile phone main device shown in FIG. This is done by receiving the information from the controller and displaying it on the display unit 10 according to instructions from the control unit.

Additionally, in this case, the owner of the landline phone can send a call end request signal using the dial and signal transmitter of the landline phone to urge the third party to end the call early. It is. This signal is then transmitted to the mobile phone master device, and from the mobile phone master transmitter shown in FIG. transmitted to the telephone.

The internal configuration of the mobile phone is shown in FIG. 4(a), and as will be described in detail later, it can be heard as an audible call end request signal from the receiving section in the figure, or the end call signal can be heard in the call acceptance/reception display section. Displays that a talk request signal is coming.

As a result of the above, when a mobile phone user moves from one place to another by about 20 to 25 meters, a new communication path is set up with a new mobile phone master device installed at that location, and the communication continues. If the user continues the call at the same location even though he/she is aware that the call end request signal is coming, the timer 1- 7, after a certain time a call disconnection signal (telephone signal)
is sent to the mobile phone and the call is terminated.

Next, the mobile phone master device will be explained. FIG. 4 (The left side of BL shows the internal configuration of the device. This device is connected to the subscriber line and landline telephone through the subscriber @ line interface circuit 1-8 on the left side. Telephone signals are transmitted to the control unit. It is connected to the transmitting section 1-5 and the receiving section 1-2 via the control section 1-3, and the control signal is transmitted via the control section 1-3 to the "synthesizer oscillator" 1-4 to transmit the desired call channel.
used to capture.

In addition, the timer 1-7 in Fig. 4 (bl) is not only used to obtain billing information when a call is made from a mobile phone, but also works in conjunction with the control signal generator 1-6 to terminate a call by the mobile phone user during a call. This is used to create a timing for sending a call request.Also, because the mobile phone user moves during a call, the mutual distance between the mobile phone and the mobile phone master device increases, and input to the mobile phone becomes difficult. When the electric field value decreases and deterioration of call quality is recognized (this detection is performed by the electric field level determination unit 1-9).
The channel switching request (performed by) from the control signal generator 1-6
It has a function that sends a signal (or disconnection) to the mobile phone to search for the nearest new mobile phone master device.

Next, the internal structure of the mobile phone will be explained using FIG. 4(a).

In the figure, the reception and transmission mixer outputs on the left end of the mobile phone master device are connected to an antenna, so that they can communicate wirelessly. That is, the received signal from the mobile phone II device passes through the reception mixer, the amplifier, and the amplified signal before entering the demodulator. A part of this output is used by the call bell section (2). This ring (2) is designed to ring when the mobile phone receives a signal from a wide area paging n-type wireless base station (n=1.4 or 5) as described later. Further, the remainder of the demodulator output is sent to the handset/receiver section and the control section. The signal sent to the receiver is used to drive the handset.

Next, the operation of the control section will be explained. First, the receiving frequency synthesizer is controlled to capture a downlink control channel sent from a mobile phone master device or the like.

If this fails, it is determined that the mobile phone is in a no-range zone, and the mobile phone is caused to capture the control signal from the wide area calling radio base station of type n. If a calling signal is received in this state, a ringing tone will sound. Then, it tries to capture the control signal from the mobile phone master device. If this is successful, a blue lamp (OK) is displayed on the call availability display section, and if it is unsuccessful, a red lamp (No) indicating that calls cannot be made or received is displayed. The controller also provides instructions to the transmit frequency synthesizer,
In addition to making it possible to generate a specified frequency for calls (or control), the roam area call information storage unit and self-ID (P
rD) Control the storage unit.

The control unit also has the following functions. If your mobile phone is in your home area and you try to make a call from there, the opposite mobile phone happens to be 111Ft6''.
: When Xl is communicating with a mobile phone from another ROHM area, a red lamp (
This is a function that displays a message (NO). That is, a call CH from the mobile phone to the mobile phone parent device using the uplink control channel.
This is because even though an allocation request is made, there is no response (because it is being used by someone else), and as a result, a determination is made at a certain timing that a call cannot be made, and the result is displayed on the display unit.

However, if the mobile phone master device can make 201 (or more) calls at the same time, the above explanation is unnecessary because IC11 of these is assigned to the dedicated CI of the mobile phone in the home area.

In principle, the mobile phone can display and store the PID of the calling party that is communicating with it, but it can also display subscriber information such as the SID of the mobile phone master unit that is communicating as a wireless device. There are times when you want to know.

In this case, when you press the function button (for example, #) on the dial part, the SID of the mobile phone parent device during the call can be determined by the control part from the information stored in the roam area call information storage part, and the nearest information.
That is, the SID of the mobile phone parent device currently performing the call is displayed. Also, if you are not on a call and are simply registering your location with the mobile phone's master device and are on standby, you can simply press the function button (for example #) on the dial to display the opposing SID without the need to emit radio waves. It becomes possible. This can be used for directions other than the mobile phone communication used in the present invention as described later, for example, when you get lost,
It is convenient because it can be used to display lot numbers.

Even if the phone number of the other party is not clearly known on your mobile phone, if you know part or all of the address of the other party, you can send the address of the other party by voice to the opposite Class 1 exchange. Then, the voice signal recognition unit built into the first-class exchange identifies it, and for confirmation, the prefecture ID, city ID, town ■D, etc. described below are sent back in numbers and can be displayed to confirm whether or not the call is possible. etc. It has a display part.

To send signals from a mobile phone, dial signals, voice signals, control signals, etc. are input to the modulator according to instructions from the control unit.
The signal is added to the transmission amplifier, and after being amplified, passes through a MIX circuit to convert the frequency to a frequency designated by the control section, and then is added to the transmission antenna.

The external functions and configurations of the mobile phone master device, fixed telephone, and mobile phone have been described in detail above, and finally, as a summary, the basic functions of the mobile phone system using these in the present invention will be explained.

i) In the place where it is normally used (at your seat in your home or office, hereinafter referred to as the home area), it operates in the cordless telephone mode currently being commercialized by NTT.

1i) In many cases, a fixed telephone set having an SID number is provided to be paired with the mobile telephone set in i).

The connection to the telephone office line is similar to that of a regular telephone, but unlike a regular telephone, the fixed telephone of the present invention has various functions such as an incoming call transfer function and a function of displaying the current location of the mobile telephone.

iii) Each mobile phone is given a PID (self-identification number) that is different from other mobile devices or terminals in other systems, and when a call is made or a request is received from the mobile phone master device, the mobile phone automatically identifies itself. The PID signal is sent.

(Set the PID of the mobile phone as PID+) iv) When a call is made outside the home area, the roam area 5I sent from the mobile phone parent device facing the other side and making the call
Store D (terminal identification number) in the "Roam area call information memory section" of your mobile phone.

(2) When the mobile phone is turned on, it automatically transmits its own PID number using the transmission control channel of the cordless telephone mode in the home area.

This is called "location registration" in the home area or roam area. The operation flow in this case will be described later.

vi) If the mobile phone is in wide-area calling mode and receives a call, but there is no mobile phone master device nearby and the call cannot be answered, the calling party number is transferred to the own PID for a certain period of time.
Store the call information in the roam area call information storage section and save it.
It has a function to answer the caller when the caller becomes available due to movement of location.

Next, the first feature, which is one of the characteristics of the mobile phone system used in the present invention, is
The subscriber information storage units installed in type 5 to type 5 exchanges will be explained. FIG. 5(a) shows the stratified structure of the first to fifth type exchanges. In other words, as mentioned in the definition of the term, the first type exchange manages mobile power supply machines, landline telephones, general power supply machines, etc., and for this purpose, the subscriber information storage unit ME
M is installed. The second type exchange is connected to a plurality of first type exchanges by transmission lines as shown in the figure, and is also provided with a subscriber information storage unit MEM. From now on, MEMs will be installed in higher-level exchanges as shown in the diagram, and the subscriber information storage units installed at each level will communicate with each other for mobile phone location registration requests, billing information, etc. as described later. It has a distributed storage function, which is a feature of the present invention.

3.5.2 The configuration principle of the mobile phone system used in the present invention and the rationale for its validity In this section, the arrangement method of the subscriber information storage unit MEM distributed in the exchanges of each hierarchy is compared to the centralized arrangement of the prior art. The superiority of this method compared to the law will be described, and the method for assigning personal identification information PID will be explained later.

First, the function of the subscriber information storage unit (MEM) will be explained.

3, 5.2-1 (Function of the storage unit for subscriber information (information on location registration 9 billing, etc. by PID) installed in each hierarchical exchange) i) Received from a mobile phone via a parent device, PBX, etc. It stores subscriber information and transfers the information to an upper station or lower station as necessary.

ii) When the exchange receives new subscriber information from the mobile phone due to a change of location, etc., it compares it with the previous information, rewrites or deletes the stored information, and, if necessary, sends the information to the upper or lower station. transfer new subscriber information, etc.

iii) If subscriber information such as the following items ① and ② is stored in advance on a mobile phone, even if a location registration request signal is received from the mobile phone, the location registration request signal will not be registered based on the previously stored subscriber information. The mobile phone registers the location of the mobile phone and performs call control, etc.

■ Wataru Mutual Pomelo Reception Distortion Location registration is not performed and therefore calls cannot be made or received.

In this case, if necessary, information indicating that the location registration of the mobile phone has been rejected is transferred to the lower or (and) upper exchange center.

■1 ・In order to restrict calls to and from the mobile phone, location registration requests are accepted within a certain limited range.

(i.e., limiting the time of making or receiving a call, limiting the available time in a day for making or receiving a call, etc.) iv) There is a landline phone that corresponds to the home area of the mobile phone. Perform unattended forwarding when necessary.

■) Connecting lines by class in case of abnormal traffic; vi) Identifying the method and type of location registration of mobile phones, and determining the calling method in the case of incoming calls (wide-area call, narrow-area call, etc.) vii) Based on the contract with the subscriber and a third party regarding the information stored in the subscriber-specific special information storage unit,
transmitting necessary parts of this information to a third party; vii) If the mobile phone is equipped with a function that allows for making and receiving calls using different media services, storing the communication status of communications by different media; ix ) Billing data for a mobile phone that makes a call in the roaming area is collected by the first type exchange to which the mobile phone belongs;
Send this to the first type exchange subscriber information storage unit that controls the home area of the mobile phone via another exchange, etc.; 3.5.2-2 (Function of subscriber information storage section of mobile phone master device) i) Mobile phone master device ( It captures the downlink control signal sent from the SID (SID) and stores the PID of the mobile phone that requested location registration in its own PID signal storage unit, and also sends it to the opposite fixed phone and KTC-I. On the other hand, the mobile phone is currently SID.

Notify that you are registering your location.

ii) If the input power value falls below a certain level because the mobile phone that is in the middle of a call via its own mobile phone parent device has flown far away due to walking, the system will shift to the mid-call channel switching operation, which will be described later. Even after channel switching is completed, the PID is stored in the PID signal storage section within the own device for a certain period of time. This is to prepare for resetting the communication channel between the device itself and the mobile phone in the event that channel switching during a call fails.

iii) Also during parent-child communication, the parent/nucleus (mobile phone)
The start and end times of the call as well as the PID information are notified to the subscriber information storage section of the first type exchange.

3, 5.2-3 (Functions of the fixed telephone storage section) i) Stores call information from the fixed telephone and transfers the stored contents according to a request signal from the outside KTC-I, which provides information to the display section if necessary. do.

ii) When the mobile phone is in a roaming area and there is an incoming call but no call is received, the information about the incoming call being forwarded is stored at a certain timing.

iii) When a mobile phone registers its location in the ROHM area, this information will be sent to KTC if the function has been set in advance.
-Receive and store from I-1.

3, 5.2-4 (Function of mobile phone call information storage unit)
i) Store location registration information of a mobile phone and call information from the mobile phone in the roam area.

ii) Storing incoming call information to the mobile phone in the roam area.

iii) The self-ID storage unit stores self-PID information, PIN numbers, and IDs necessary for credit and various certificates.
Memorize the information 1st class.

Further, necessary information among the information stored in the self-ID storage section is transmitted in response to a request signal from the KTC-I.

From the above, the function of the subscriber information storage section has been clarified, and the location registration of the mobile phone, which plays a major role in the present invention, will be explained below.

In order to be able to make and receive calls to and from other telephones at all times while carrying a mobile phone, which is one of the main devices of the mobile phone system used in the present invention, and moving around the country, it is necessary to Technically speaking, it is necessary to constantly monitor and remember which mobile phone master device it is possible to communicate with. This task is carried out by the mobile phone master device and the 1st to 5th class exchange subscriber information storage units (MEM).

Location registration is classified into the following six cases depending on the distance from the home area of the mobile phone.

i) Location registration in home area When the mobile phone is powered on in the home area, this registration operation is started. FIG. 11(a) shows the operation flow in this case. This will be explained below using FIG. 11(a). In the figure, when the power switch of the mobile phone PID+ is turned on, it captures the downlink wJCH of the mobile phone master device SID in the home area, and transmits a location registration request signal from the PID using the uplink control CH. The mobile phone master device SID receives this and stores it in its own memory, and also sends the PID addressed to the first type exchange KTC-1-1.
, sends out a location registration request signal. KT who received this
In the subscriber information storage section of C-I-1, the location registration storage section, which is a part of this configuration, stores that the location of PID is registered with the mobile phone master device SID in the home area.

When this is completed, a location registration completion signal addressed to the mobile phone parent device is sent. Upon receiving this signal, the SID checks PID+ in the signal and sends a location registration completion signal addressed to the mobile phone PID. The PID+ that received this
inspects the signal content and stores the SID.

The above operation flow completes location registration in the home area.

ii) Location Registration in Type 1 Roam Area Next, the operational flow of location registration in Type 1 Roam Area will be explained using FIG. 11 (bl).
When the DI is powered on, it sends a location registration request signal to the opposing mobile phone master device 5IDz in the same way as described above.

When I checked the PID+ signal at 5IDz which received this, 5
The mobile phone facing IDz (recognizes that it is not a PID but a third party mobile phone in the roaming area, stores the PID in its own memory, and sends a location registration request signal to KTC-T-1) .KTC-1- which received this
1 MEM uses SID for location registration.

Change from SID to SID and store it.

Sends a destination completion signal. The following operations proceed in exactly the same manner as in FIG. 11(a), and the position registration at 5rDz of PID is completed.

Next, the position registration operation when walking and moving within a type 1 roam area while keeping the power switch on the mobile phone PID will be explained using FIG. 11(C).

In the figure, a mobile phone PID.

is captured as the downlink control CH from 5IDz, but as the user walks, the input electric field value decreases and eventually falls below a certain reference value. Then, the PID starts searching for another control channel acquisition based on the information from the noise level detector (see FIG. 4(a)).

As a result, the 5ID finds that the input electric field value of the downlink control CH transmitted from the mobile phone master device 5ID3 satisfies a certain standard and stores it in its own memory as a location registration.
Change it to 2 and rewrite it to 5IDz. It also sends a location registration request signal to SID:l. Upon receiving this signal, the mobile phone master device 5IDz stores the PID and sends a location registration request signal to the KTC-I-1.

The following operations are similar to those shown in FIG. 11 (bl).

iii) Location registration 11 in Type 2 ROHM area
The operation flow will be explained using FIG. Now, when KTC-1-2 inspects the contents of the location registration signal, it recognizes that the PID+ is not a mobile phone managed by KTC-1-2, and stores it in its own location registration storage section, as well as transmitting the PID+. KTC-n, which manages
-1, sends a location registration request signal. Upon receiving this, the MEM of KTC-U-1 stores the signal contents in the upper eye position registration storage section of the inspection and then stores the signal contents in the KTC-U-1 managing PID+.
Request C-1-1 to remember that PID+ is registered in 5ID4 managed by KTC-I-2. Upon receiving this signal, KTC-I-1 inspects the signal content and stores it in its own location registration memory.
Report to n-1 that location registration has been completed. Upon receiving this signal, KTC-n-1 verifies its own location registration with the stored contents of its memory, and then sends a location registration completion signal addressed to KTC-1-2. The following operations follow the same process as shown in FIG. 11(C), and the location registration of PID 5ID4 is completed.

iv) Location registration in Type 3 ROHM area Figure 11 (
The operation flow will be explained using e). In the location registration operation flow in the same figure, from PID and power switch on to K.
The operation up to signal transmission to TC-n-3 is shown in Figure 11(d).
is exactly the same.

Now, the location registration request signal sent to KTC-n-3 is examined and stored in the MEM of KTC-II-3. Further, as a result of the inspection, it is found that the PID+ is not a mobile phone managed by the KTC-II-3, so a location registration request signal is sent to the upper exchange KTC-m-1. KTC-1 that received this signal [[-1
It recognizes that the ID is managed by its own exchange and stores it in its own MEM. It also sends a location registration request signal to KTC-n-1. The following operation follows the same process as shown in FIG. 11 (dl), and the location registration of PID to 5IDS is completed.

■) Location registration in Type 4 roam area Figure 11 (f
) shows the operation flow in this case. The same figure and Figure 11 (e
) is different only in that a type 4 exchange is involved; the other operations are exactly the same as in FIG. 11(e).

vi) Location registration in Type 5 roam area Figure 11 (
g) shows the operation flow in this case. The same figure and Figure 11 (
The only difference from FIG. 11(f) is that a type 5 exchange is involved, and the other operations are exactly the same as FIG. 11(f).

In addition, in the above explanation, KTC in FIG. 11(e)
-If-3, KTC-If-4 in Figure 11(f)
and KTC-m-4, Figure 11 (KTC in gl
- It is not necessarily necessary to store the location registration information of the PID that has requested location registration in the MEM installed in each of U-5, KTC-m-5, and KTC-IV-5; Even if it is omitted, the effect of the present invention will not be affected in any way. However, by storing location registration information in these exchanges, which may seem redundant, when PID+ is in a roaming area and there is an incoming call from the same type of roaming area, the roaming area can be managed. By simply searching the MEM of the exchange, there are advantages such as being able to set up a communication path between the two parties without having to go to the upper exchange. Therefore, considering the current situation where the economic efficiency of MEMs is increasing, it is considered reasonable to store registration information in the MEMs of all exchanges involved in location registration.

Finally, as an example of the operational flow when canceling (changing) location registration, the operational flow when PIDI, which has registered a location in a Type 5 roam area, changes its location registration to a home area will be described below.

vi) P whose location was registered in the 5th type ROHM area
Operation when IDI changes location registration to home area A case like this actually occurs when a person living in Tokyo travels to Hokkaido with a mobile phone and uses the mobile phone in various places during implementation. This applies to cases where the mobile phone is turned off on the way back, taken back to Tokyo, and then turned on at home the next day.

In this case, the location will be registered in the home area of Tokyo again, and the operation flow will be as follows. It is as if the flow is completely the opposite of the location registration operation flow in the Type 5 roam area shown in Figure 11 (gl).
S ID+, KTC-n 5 (n=1+ 2.3+
4+ 5)+ KTC-n-1<n=1, 2.3.4
．． 5) MEM is all PID, location registration is SID
This is an action to change (delete) what is set to . In other words, in the storage section of SID, PID changes the location registration from PIDff of the 5th type roam area to the home area, and also changes the location registration from PID to 5IDI for KTC-1-1. Please let us know what you are requesting.

KTC-1-1 searches for the MEM, changes its own MEM, and changes (deletes) the location registration for KTC-II-1.
request. Upon receiving this signal, KTC-II-1 erases the location registration information related to the PIDI of its own MEM, and also requests KTC-m-1 to change (erase) the location registration. Hereinafter, the SID described above.

PID from MEM of exchanges other than KTC-I-1.

All location registration information will be deleted.

The above explanation has clarified the location registration operation of the mobile phone, and as described above, in the mobile phone system according to the present invention, the location registration of the mobile phone is always performed. Furthermore, the location accuracy of this location registration is extremely accurate at 25 meters in the cordless telephone mode. Therefore, if you want to monitor the current location of insurance agents, salesmen, etc. using electronic bulletin boards in business offices, etc., you can equip these people with mobile phones and use the nearest Type 1 Exchange A (KTC-■
) This is easily possible if you receive location registration information from ). As described above, the present invention has wide application fields other than communications.

In order for the mobile phone type location registration according to the present invention to be effective, it is a prerequisite that the mobile phone is in a standby state (power on). Considering that the power consumption of IC circuits and high-frequency circuits has recently been reduced, it is desirable to keep the power on once a mobile phone leaves its home area.If all mobile phones in the roaming area If these conditions can be met with telephones, new service systems such as those described below will become possible.

■Communication in emergencies such as tsunamis and typhoons will be possible for each individual.

■ Even if the location of an important person (VIP) is not registered for some reason, it is possible to call the person in wide area calling mode (using satellite).

■It becomes possible to communicate with salesmen, doctors, etc. when they arrive at a designated municipality. Conversely, when the user leaves a certain area, information on location registration changes can be automatically transmitted to people in the home area, such as an office or business office.

■A scheduled service, that is, a service that broadcasts market information registration at a fixed time every day, will become possible for people traveling across the country.

■Emergency communications from mobile phones can be carried out effectively.

Below, these usage methods will be explained in detail with specific examples.

■Emergency communication from the mobile phone owner If the mobile phone owner feels unwell at home or on the road, and is judged to be suddenly ill, use the pre-installed emergency call button on the mobile phone or the emergency call button. For example, if you decide to dial 119 for communication,
When the emergency medical center receives this, the current location information of the mobile phone is transferred from KTC-I, and an ambulance can be sent directly to the scene. Currently, elderly people are given something called an "emergency pendant." In the event of an emergency, when you pull the pendant at home, an SOS radio wave is emitted from the radio installed inside the pendant, and the signal received is sent to the emergency medical center. A system is in use in which emergency services are dispatched to the area and an ambulance is dispatched to the area, but the present invention is equivalent to a highly functional version of this system that expands the service area to a nationwide scale. Similarly, if there is a fire in your area, you can make an emergency call by e.g.
Just dial 19 and say "fire" (this doesn't necessarily have to be said either, it can be something like a dial signal),
Unlike the current system, there is no need to provide detailed explanations of place names, lot numbers, and the state of nearby buildings when people are mentally disturbed. At the firefighting center, the registered location of the caller can be displayed on the electronic display board, allowing the caller to be immediately dispatched to the fire scene.

Additionally, when reporting from the scene of a crime or traffic accident, for example, by dialing 110 from a mobile phone, the police car command center can clearly recognize the current location of the mobile phone, allowing effective operations to be carried out. Become.

■Detecting the current location of elderly people with dementia As Japan's population ages and the elderly occupy a larger portion of the population, the increase in the number of elderly people with dementia is becoming a social problem. In particular, a groggy old man who wanders around roads and parks indiscriminately day and night, away from the supervision of his family members, becomes a nuisance to the public and is more likely to be involved in a traffic accident, placing a heavy mental burden on the family members who walk in search of the elderly man. The mobile phone system of the present invention provides great benefits in this case as well.

In other words, if an elderly person with dementia is given a mobile phone (powered on), even if he or she goes outdoors alone and walks around town, it will be
By providing the current location of the mobile phone to TC-I, discovery becomes very easy. Similarly, if you go to a large amusement park and have your child carry a mobile phone, it will be easier to find him if he gets lost.

The subscriber information storage section of the N-type exchange used in the explanation of this chapter above has sufficient storage capacity and always stores new information, but if the storage capacity becomes saturated or a failure occurs, the PID Location registration may not be performed. In this case, the adverse effects on the effects of the present invention can be eliminated by having another exchange store the location information in the following priority order. That is, if the MEM of the n-th type exchange that manages the roam area becomes impaired, the n+1-th type exchange takes over the storage. If the higher-level exchange is also unable to store the information due to a failure or the like, then the higher-level exchange will attempt to store the data in the MEM of the fifth-class exchange. If the MEM of the type 5 exchange cannot be stored, location registration is performed in the mobile phone master device or fixed telephone (SID) in the home area.

If there is an incoming call in this state, S[
Since the call is made from the exchange that manages the area where the mobile phone is actually located after adjusting the current location to the DI, the control signal will be detoured considerably, but the call will be executed without any problem.

Now, with the above explanation, the nth exchange 1 (n=1.2°3.4
It has become clear how the subscriber information storage section installed in 5) and 5) plays an important role. Therefore, below, we will calculate the traffic that uses this storage unit and the required memory amount, and explain the advantages of the distributed method over the conventional centralized method.

3, 5.2-5 (Location registration traffic and required memory amount) The mobile phone in the mobile phone system used in the present invention can be carried anywhere in the country and calls can be made and received from there. However, as the mobile phone moves, it is necessary to register the current location at all times in order to ensure the availability of calls at all times.

Further, it will be explained in detail below that even if this method is executed, it is much more efficient and economical than the conventional techniques, and is highly rational in accordance with the user's habits.

First of all, to give an overview of the explanation, mobile phone users in Japan (this can be referred to as the general population of Japan) spend most of their time at their personal homes or workplaces, etc. The amount of time each person spends going out is relatively small, and the longer the distance that each individual leaves from their usual place, the more the frequency of going out and the amount of exclusive time they spend will drastically decrease (see details). (according to the literature mentioned below).

In other words, for example, in the case of a businessman working in an office, etc., he spends most of his time at his desk (desk), and even when he is away from his desk, he still spends most of his time at his desk.
Even if you only stop by a conference room within your business or another workplace, and you bring your own mobile phone with you at that time, your location will be registered to PB.
The process is completed by simply changing the location registration information in the subscriber information storage section of X or the first type exchange. Furthermore, the transmission and reception of signals necessary for this is completed between the mobile phone, the parent device, and the PBX (or the first type exchange), and is not affected by anything else.

Next, assuming that a businessman goes out of the office for business, in most cases he can return to the company after about half a day, and in most cases it is only a day trip at most. In terms of the type of exchange according to the present invention, it is often completed within the same city (type 2 exchange control area) or within the same prefecture (type 3 exchange control area), and business trips outside the prefecture (type 3 exchange control area) are common. Furthermore, the possibility of a long-distance business trip from Tokyo to Hokkaido (class 5 exchange area) is extremely small.

The above situation is not limited to businessmen.

For example, when looking at the total time spent by housewives in daily life, the proportion of going out is small, and most of the time when a housewife does go out, she can do some shopping or other errands in the neighborhood, and other errands can also be done within the same city or within the same city. Most cases are completed within the same prefecture, and trips to other prefectures are extremely rare.

Furthermore, the frequency of going out at home (-household) for leisure, etc. is extremely low, as will be described later.

From the above circumstances, it is understood that the frequency of use of the subscriber information storage section (location registration storage section) of the upper exchange, and therefore the frequency of signal transmission required for these registrations, is extremely low. Therefore, considering the national character of our country (this also applies to the people of other countries around the world), we believe that the distributed registration method of the present invention when carrying a mobile phone is the most consistent with user habits. It is judged as a thing.

This point can be said to represent a feature of the present invention that is completely different from the prior art where subscriber information is collected and managed at one location nationwide.

Now, I will explain in detail the daily actions of the general public as described above, with reference to literature (National Flag Action B!ll Survey Report, Prime Minister's First Edition, October 1980). That is, hereinafter, based on this report, the amount of traffic in which mobile phone owners are registered in the storage units of the first to fifth type exchanges of the present invention will be calculated.

a) Types of travel, travel experience rate, and number of trips in 1930
In the one year period from September 1955 to August 1956, 66.
0% are traveling overnight. (Table 1) Looking at the experience rate of overnight trips by type of trip, 45.9% were purely sightseeing, 7.1% were business trips, 13.8% were homecoming trips, and 9.1% were trips for housework/private purposes. % etc. When pure tourism and combined tourism are combined, 53.3% travel overnight.

Table 1 Experience rate and average number of trips by type of trip Looking at the number of overnight trips, the average was 1,683 trips. Looking at this by type of trip, pure tourism accounted for 0.821 trips, accounting for 48.8% of the total. occupy Business trips were 0.180 times, return trips were 0.235 times, etc., and pure tourism and combined tourism were 1.030 times, accounting for 61.2% of the total.

Next, the average number of travel days per person per year is 4.92.
It is day.

b) Regarding flows between districts (blocks) Looking at destinations by block from the travel departure point, as shown in Table 2, the proportion of intra-regional travel is high in all blocks.

C) Regarding overseas travel, the rate of experience of overseas travel per person for the year from September 1980 to August 1981 was 2.0%. Additionally, the average number of overseas travel days per person per year is 8.6 days.

d) About day trip tourism Recresilon 1981.
As a result of surveying day-trip tourism and recreation in winter and summer during the two months of February and July and August, the experience rate for day-trip tourism and recreation per household member was 32.4% in winter. The experience rate for “summer” is 43.
It is 6%. "Summer" exceeds "winter" by 10 points. The average number of day trips per person is 0.659 in winter and 0.95 in summer.
6 times.

Furthermore, when looking at the destinations for one-day tourism and recreation, divided into those within and outside the prefecture in which the respondents reside, we find that ``winter'', ``winter'',
Over 60% of respondents lived in their prefectures for both summer and summer months.

(Calculation of location registration traffic and memory capacity for each exchange) a) Type 5 exchange When Japanese citizens wish to use their mobile phones even when traveling abroad, they must register their location in the exchange memory.

The amount of traffic travel per person is 0.03 times/year, and from the average number of days (8.6 days), the amount of travel per person is 1.
The number of times that location registration and deletion are performed on the 5th type exchange in a year is 0.03 times x 2 days - 0.1) 6 days/person year If the traffic is uniform, it will be 80% of the entire population (120 million people). Even if 100 million people (100 million people) owned mobile phones, the memory capacity required for a type 5 exchange would be enough for about 500,000 people.

In addition to the memory capacity of the 5th type exchange, location registration is required when moving between 4th type roam areas. This applies, for example, when a user residing in Tokyo travels to Hokkaido, and these statistics can be obtained from Table 2 using the following formula. First, the number of times location registration is performed is as follows: One mobile phone owner registers in memory 1.72 times a year due to travel outside the area.

In addition, the number of trips per year is 0.66, and it is thought that there are few trips outside the region that cover multiple regions, so the number of trips per year is 0.66.
Memory will be used for 6 x 4.92 x O, 509 = 1.65 days.

From the above, the amount of location registration traffic and memory capacity required for a Type 5 exchange due to foreign and out-of-area travel can amount to about the same amount per year per portable phone.

Traffic it (0,03+0.86) X 2-1
．． 78 (times) Memory capacity 0.17 x 1.65
= 1.82 (Sun) Although there is a position registration in an intermediate block, it is considered to be a decimal number, so it is omitted in the above calculation.

b) Type 4 Exchange It is necessary to add intra-block flows, such as those within the Tokyo block or Tohoku block, as shown in Table 2, and flows due to day trips outside the prefecture.

The number of location registrations per mobile phone per hour is 1.683 x O,491 x 2 = 1.65 times, and the latter is similarly calculated as 1,456 times per day.

In addition to these, the 4th type exchange operates in the same way each time a registration is made to the 5th type exchange, so if we add this, the traffic volume is 1.65 + 3.18 + 1.78 = 6.6
1 (times) Similarly, memory capacity 3.19 + 1.82 = 5.01 (days)
That is, accessed 6.61 times per year, 5. Memory will be used for O1 day.

C) It is difficult to accurately estimate the amount of location registration traffic and memory amount related to the third type exchange to the first type exchange, such as a third type exchange, because they are greatly influenced by the usage habits of mobile phone users.

However, in terms of memory capacity, it is necessary to design a type 3 exchange for 20 to 30 days a year, a type 2 exchange for 50 to 100 days, and a type 1 exchange for 365 days a year. , the basis for the above calculation is based on the above-mentioned literature (
National Travel Dynamics Survey Report, Prime Minister Part 1, October 1981)
This is the measurement result in 1982, as stated in
Some amendments may be necessary in the future due to changes in people's lifestyles, but we do not believe that there will be any major changes that fundamentally overturn the basis of the present invention.

The approximate calculations of the traffic and required memory amount using the subscriber information storage unit of the present invention have been made above. We will roughly estimate the amount of traffic and memory that will be required if we adopt this method.

■ Traffic As explained in points i) to iii), all the location registration 1 billing information, etc. associated with the movement of a mobile phone must be transmitted to a storage unit located in one location nationwide, which is a huge problem. reach a certain amount. In particular, billing information is transmitted immediately after a user ends a call (otherwise, memory would be required and the effect of centralized placement would not be achieved). This will require an increase in line capacity by this amount. - On the other hand, in the mobile phone system that is the premise of the present invention, there is no need to send billing information immediately after a call, but it is sufficient to send the billing information to KTC-1 for one day, one week, or one month at a time. There are many benefits, such as being able to choose from a limited number of time slots.

■Amount of memory Considering the Japanese association, if we compare the method of installing the distributed subscriber information storage unit used in the present invention with the method of centrally installing it in one place nationwide as in the conventional technology, the amount of memory will be smaller in the case of centralized installation. It is clear that the number will decrease overall. A quantitative consideration will be given below.

In order to achieve the same level of serviceability as the present invention even if the storage unit is installed in one central location nationwide, it is necessary to install the subscriber information storage unit at the telephone office corresponding to the first type exchange (
For example, for storing billing information), the question is what is the difference between the amount of memory required for the second to fifth type exchanges used in the present invention and the amount of memory in the case of centralized arrangement. Then the fifth
Since the memory capacity of the second to fourth type exchanges is extremely small, the second to fourth
This is a comparison of the memory amount of a type 3 exchange and the memory amount of a centralized arrangement, and the distributed M.

The total memory capacity of Type 2 and Type 3 exchanges in Japan are respectively M t and M i . Actual Mt1
Although the value of M3 depends on the design concept, that is, the margin technique for the busiest time, the above value is estimated to be 2 to 3.

However, the price of hardware used in storage devices has been decreasing in recent years, and the disadvantages of this method are not so great, but rather the superiority in terms of traffic volume is enormous.

3.5.3 (Regarding PID (Personal Identification Information)) Next, a method for assigning PID (Personal Identification Information) of the present invention will be explained.

The information included in the PID is given to enable the following identification.

■ A specific individual can be identified from other individuals (that is, the same PID cannot exist even within the same family). ■ Type 1 roam area, Type 2 roam area.

・−・・〜 It is possible to identify the type 5 roam area (
In fact, this is the most important feature of the PID assignment method of the present invention.

) ■ The accuracy must be such that the location of the home area of the individual (mobile phone) who owns it, that is, the address (residence) of the individual (however, clear accuracy here means that the user cannot see the PID). For example, the subscriber information storage section of a type 1 exchange does not mean that it can be immediately identified.
If you have accumulated a comparison table of place names and PIDs for seed loam areas, and want to obtain the address information of the person from the PID,
(This means that the service is easily available), and if you want to register multiple home areas, prioritize them; , Centralized stations, terminal stations, and even wards, towns (street addresses), etc. can be identified. ■ For reasons of ■, prefectures, cities (wards), and wards.

It must be possible to identify even the town (street address), ■ It must be possible to identify by country in anticipation of the future, ■ It must be possible to identify by service class, ■ It must be possible to prevent theft and use by a third party without the owner's consent. ■ The service class should be able to identify, for example, the following classes: i) Limit the area where calls can be made or received; ii) Set the time and date of calls made or received. iii) Limiting the available time in a day for making or receiving calls; iv) Availability of additional services such as conference calls ■) Whether or not there is a landline phone compatible with mobile phones in the home area vi) (vi) Possibility of superimposition with other mobile communication systems; (vii) Possibility of non-telephone (non-voice) services; 1x) PID assignment methods that have specific rules The first part explains that PIDs can be called all at once and the PID configuration applied to the present invention.
First, the number of digits in PID will be explained.

In the case of Japan, the population is approximately 120 million, so it is necessary to identify this number. In other words, if we adopt a national uniform number system, xx-xxx-xxx,
It can be seen that x (x-0, 1, 2, -9) and 9 digits are sufficient. However, since it is necessary to satisfy the conditions (1) to (2) described above for PID identification, nine digits is insufficient. Therefore, the following numbers of digits are assigned to the following various roam areas.

Type 5 roaming area, 3 digits for each country ××× (country ID) Type 4 roaming area, 2 digits for each prefecture XXX (prefecture ID) Type 3 roaming area, i.e. city, ward (in the case of Tokyo) county 3 digits XXX (city ID) 3 digits XXX (town ID) in Type 2 loam area, i.e. ward, town, or equivalent place name (cities with a population of 50,000 or less are included) ) Type 1 ROHM area, i.e. 4 digits xxxx for street address, housing complex, apartment name (Subscriber ID) In other words, a total of 13 digits are required, but in addition to this, 7 digits are required for service class, VI PIIti, and PIN number, etc. 20 digits in total, 4 bits x 2
0=80 bits. However, country identification will not be necessary for the time being, and the caller will not be able to identify the class of service or VIPi.
In principle, there is no need to dial a separate password or password when making a call. The PID assignment method explained above is illustrated in FIG. 6.

In reality, it is necessary to provide users with a PID with as few digits as possible to improve serviceability, so the number of digits at the time of introduction will likely be reduced to about the same as NTT's national long distance dial. However, for detailed explanation of the present invention, the sixth
Use diagrams as the basis.

Now, the PID imparting method shown in FIG. 6 has a great influence on the operation of the present invention. This point will be explained.

According to the present invention, a mobile phone owner can make a call from anywhere in the country, and the PID assignment method of the present invention is effective when making a 0M call, which can be received from anywhere in the country. Become.

That is, assume that Mr. A, whose home area is Hoya City, Tokyo, is currently traveling around the country carrying a mobile phone.

On the other hand, Mr. A's friend 8 lives in Kumamoto and wants to make a call to Mr. A from the tactile packing machine. The flow of incoming call signals when Mr. A is in the 1st to 5th type roam areas will be explained below.

■ In the case of a Type 1 Roam area, Mr. 8 dials Mr. A's PID signal (PIN and service class are omitted in Figure 6). In this case, Mr. A's PID
It is necessary to dial all of the prefecture ID, city ID, town ID, and subscriber ID. If Mr. 8's telephone is managed under the same type N exchange as Mr. A, if n = -1, dial only subscriber ID n = 2.
# Town KD + subscriber ID dial n-3〃 City ID + subscriber ID dial n-4〃 Prefecture 10+
It is sufficient to dial the city, summer, and town ID + subscriber ID. Further, even if a town ID or a city ID is dialed using nml, the exchange makes the determination, so that the desired call receiving operation can be performed without causing an erroneous connection or connection failure. Now,
The first class exchange that manages Mr. 8's phone uses PID
When it decoded the mobile phone and recognized that it was a mobile phone managed by KTC-1 in Hoya City, Tokyo, it sent the calling signal to the higher-level exchange that controlled Mr. 8's phone, and finally the 5th mobile phone.
The information reaches the subscriber information storage section of the subscriber exchange.

At this point, the subscriber information storage unit is searched, but since Mr. A's location has not been registered in the 5th type roaming area, the hierarchy has been lowered to the 4th type exchange that manages Mr. A's mobile phone.
Transfer the incoming call signal to KTC-IV-1>. The subscriber information storage section of the 4th type exchange is also searched, but Mr. A's 4th type roam area location is not registered here, so the incoming call signal is sent to the 3rd type exchange (KT-Ill-1). Forward.

In this way, the subscriber information storage section is searched.

It turns out that Mr. A's roaming area location has not been registered to the first type exchange (KTC-1-1), so in the end, the first type exchange (KTC-1) is the same as when receiving a normal telephone call.
The incoming call signal is transferred to 1-1), and as a result of checking the MEM, it is found that the user is not in the home area and is in the roam area S.
It turns out that the location is registered in ID, 5IDz
The incoming call signal for Mr. A is transmitted. SID! So, Mr. A's location is registered on his own mobile phone's master device SI! It searches the PID storage unit and recognizes that it is set to :h, so it sends out the PID and destination call signal. Here, if Mr. A hangs off, 8
A conversation begins with Mr.

■ In the case of a Type 2 ROHM area In this case, from Mr. 8's dial signal, the Type 2 exchange (KTC-11-1) that manages Mr. A's mobile phone
The operations up to this point are the same as ■.

Now, when the incoming call signal addressed to Mr. A is transmitted to KTC-n-1, the second type exchange searches the MEM section and finds that Mr. A's location has been registered and is managing the home area. K
It turns out that he is not in TC-I-1 but in KTC-I-2. As a result, KTC-n-1 transmits the incoming call signal to KTC.
Send to -1-2. KTC-I-2 searches the MEM and sends PIDl to the SID managed by its own exchange.
When it recognizes that it is registering, it transmits the incoming call signal to 5rDi.
Send to. The following operations are the same as ■.

■ 3rd class ROHM area - In this case, the 3rd class exchange (KTC-III-1) that manages Mr. A's mobile phone from Mr. 8's dial signal transmission
The operations up to this point are the same as ■.

Now, when the incoming call signal addressed to Mr. A is transmitted to KTC-1[[-1, the third type exchange searches the MEM section and finds that Mr.
When it becomes clear that his location is registered and that he is in KTC-II-2 rather than KTC-n-1, which manages his home area, KTC-m-1 transmits the incoming call signal to KTC-n.
Send to -2. KTC-n-2 searches the MEM and searches for the subordinate exchange KTC-1-2 that is managed by the local exchange.
When it recognizes that the PID is being registered in KTC-1-2, it sends an incoming call signal to KTC-1-2.

Upon receiving this, KTC-1-2 searches for MEM and 5
When I realized that Mr. A's location was registered in ID3,
s ID, sends a destination call signal.

The following operations are the same as ■.

■ Type 4 Roam Area In this case, the operation from Mr. 8's dial signal transmission to the Type 4 exchange (KTC-■-1) that manages Mr. A's mobile phone is the same as in ■.

Now, when the incoming call signal addressed to Mr. A is transmitted to KTC-IV-1, the type 4 exchange searches the MEM section and finds that Mr. A's location has been registered and is managing his home area. When it becomes clear that the user is at KTC-111-2 rather than KTC-I[r-1, KTC-rV-1 transmits the incoming call signal to KTC-111-2.
Send to C-I[1-2. KTC-! ! In r-2,
When it searches the MEM and recognizes that PIDl is being registered in the exchange KTC-11-3 under its control, it sends an incoming call signal to KTC-II-3. The following operation is the same as performing the same operation as ① from the next higher level exchange.

■ Class 5 Roam Area In this case, the operations from Mr. 8's dial signal transmission to the Class 5 exchange (KTC-■) that manages Mr. A's mobile phone are the same as in ■.

Now, when the incoming call signal addressed to Mr. A is transmitted to KTC-V, the 5th type exchange searches the MEM section and finds that Mr. A's location has been registered and that the KTC-V, which is managing the home area,
- When it is determined that the caller is at KTC-IV-2 rather than TV-1, KTC-V sends an incoming call signal to KTC-rV-2. KTC-IV-2 searches for MEM and sends P to the exchange aKTC-■-3 managed by its own exchange.
When IDl recognizes that it is being registered, it sends the incoming call signal to K.
Send to TC-I[[-3. The following operation is the same as performing the same operation as ① from the next higher level exchange.

Other benefits when implementing the PID assignment method for mobile phone systems according to the present invention will be explained.

■ Implementation of group calls When administrative authorities wish to send administrative information to people within the same prefecture, same city, same town, village, etc., as shown in Figure 6, IDs containing the necessary people (e.g. After town ID)
- All you have to do is perform a simultaneous call. Alternatively, it is possible to further subdivide and call only PIDs assigned according to specific rules.

■ As explained for each route guidance service, PID corresponds to place name.
Just knowing rD makes it possible to roughly determine the name of a place.

■ Substituting the postal code for prefecture ID, city ID, etc.; PID in the mobile phone system according to the present invention is prefecture ID;
D. City 10. Since the town ID and subscriber ID are classified and given, the caller can make a call even if he or she does not know the postal code of the address, town ID, and subscriber IDL as the other party's mobile phone number. In this case, the first-class exchange that received the call uses its own postal code and area ID comparison table, and if it does not remember whether it is 602, town rD (for example, 123), subscriber number (for example, 1234) or L, it uses its own postal code and area ID comparison table. From your mobile phone, for example #0-602-123-1
You can talk to the other party by dialing 234. In this case, the first-class exchange that received the call uses its own postal code and area 10 comparison table to determine that 602 is Kamigyo Ward, Kyoto City, Kyoto Prefecture, and uses the Kyoto Prefecture ID (for example, 555) and the city ID.
(for example, 45).

Furthermore, in the mobile telephone system according to the present invention, it is not necessary to remember the telephone number of the other party. In other words, as long as you know the address and name of the other party (this does not necessarily have to be accurate), the KTCI number The guide uses AT (artificial intelligence) to give you a more accurate number.

For example, "Kyotoshi Chikara Migyoku Shimotachiuri Oomya Agartana Chikaracho 202 Bunchinose Hajime"
If you dial by voice, "Sonokataha xxx-xx-"
xxx-xxxx Death.

If you want to talk, you can dial #l, for example, and if you don't, dial *2 to achieve your desired purpose.

This is because estimation is easily performed using the result AI, which is separated from the prefecture ID, city ID, town ID, and subscriber ID.

3, 5.4 (Reason and examples of how it is possible to make calls in all areas even with weak mobile phone transmission power in urban areas) According to the long-term outlook (edited by the Radio Technology Council, published by the Radio Promotion Agency, July 1980), the importance of mobile communication will increase in the future, and demands for its quantitative expansion and qualitative improvement will increase. However, since mobile communication services would not be possible without the use of radio waves, it is stated that it is necessary to continue to secure the necessary radio waves as much as possible to meet mobile communication demand.

It is necessary to take measures to integrate various systems, develop technology for effective use of radio waves, develop new frequencies for mobile communications, and increase the capacity to accommodate mobile communications subscribers.

0 Mobile objects that essentially move around (people 2 trains, ships, aircraft, etc.)
Communication with ■ To improve convenience, communication may be performed using radio waves and making the wired portion cordless.

Estimating the demand around the year 2000 for major services that are expected to have many needs in the future and require a relatively wide frequency band, the demand will be as follows.

■ Car phones 4.5 million (10% of vehicles) Metropolitan area 1.15 million (25% of the nation) ■ Mobile phones 1.2 million (1% of population) Metropolitan area 3
00,000 (25% of the nation) ■ Train phone 0.1 million ■ Ship phone 50,000 (vessels over 5 tons) ■
Maritime satellite communications 100,000 ■ Aircraft telephones 1,000 ■ Cordless telephones 7 million (10% of telephones) Metropolitan area 1.75 million (25% of the nation) ■ Pagers 6 million (5% of the population) Metropolitan area 1
500,000 (25% of the nation) Police, disaster prevention, fire department, etc. 600,000 Disaster prevention mutual radio 600,000 Various commercial use 4.8 million (4% of the population) Metropolitan area 12
00,000 (25% of the country) Personal wireless 6 million (5% of the population) Metropolitan area 15
00,000 (25% of the nation) Fishing radio 400,000 As mentioned above, Japan's mobile communications, especially land mobile radio telephones, are expected to make great progress.

The present invention relates to a mobile phone among the mobile communications described above, and this invention means a system that includes all of the above-mentioned items (1) to (2). FIGS. 5(b) and 5(C) show the national mobile phone network configuration according to the present invention.

3, 5.5 (Configuration of mobile phone system in Tokyo's 23 wards as an embodiment of the present invention) A case in which the present invention is applied to an urban area will be explained in detail. The system configuration of the mobile phone system implemented in the 23 wards of Tokyo is shown below.The system configuration of the mobile phone system implemented in the 23 wards of Tokyo is shown first.
Explaining the structure and operation of the present invention in 1987),
Thereafter, the structure and operation at the time of partial introduction of the present invention in 2000 A.D. will be explained.

The former represents the state after the construction of the ultimate mobile phone system according to the present invention, while the latter, on the contrary, will be gradually developed in a state of coexistence with various mobile communication systems currently in use, such as cordless phones, car phones, and pagers. Therefore, the use of these other methods is necessary to achieve the objectives of the present invention. Therefore, the configuration of the present invention is slightly different from that of the former ultimate form, and the hardware and software that make up the system are also slightly different. However, the effects of the present invention are fully exhibited even at the above-mentioned stage of partial introduction.

3, 5.6 (Configuration of the mobile phone system according to the present invention when the nationwide network is completed) Construction of the mobile phone system according to the present invention will begin in the future, and
Assuming that it will be almost completed around 2000, the configuration of the system will be as shown in Figures 5(a) and 5(bl).In other words, in Figure 5(a), the type 1 exchange KTC-1 −
11; t: An exchange in which a mobile phone al (PIDI) is accommodated. KTC-1-1 houses many other mobile phones (2, 3), mobile phone master equipment (1, 2゜3), and landline phone i (1, 2, 3), as well as A large number of regular telephones (not shown) are also accommodated. (1
The circles numbered 3 to 3 indicate the communicable area from one parent device. ) Also, the mobile phone parent device 4 in the figure is house 1, '2
, the electrical characteristics are the same as the parent device in 3, but it is installed on an outdoor utility pole or a lighting pole in a park, etc., and is connected to KTC-I-1 by a transmission line. ing. 4 is used when a mobile phone owner uses it on the road or in an open space such as a park, and is installed in various places, so the mobile phone owner can make and receive calls from any location. Figure 5 (a
5 at the bottom of ) represents a large-scale building, and the circle indicated by a broken line represents the service area that can be communicated from one mobile phone master device. It is now possible to make and receive calls using a mobile phone from any location. These mobile phones, related devices, etc. are KTC-1.
-1 or KTC-T-2. KTC
-1-1 or MEM of KTC-I-2 indicates the subscriber information storage unit.KTC-I-1 and KTC-
1-2 or other type 1 exchange a (local telephone office) not shown in the figure is connected to the upper type 2 exchange (KTC) as shown in the figure.
-11-1). In addition, the 2nd type exchange is connected to the higher level 3rd type RAM (KTC-Iff-1), and the 3rd type exchange is connected to the higher level 4th type exchange (KTC-Iff-1).
fV-1) and the 4th type exchange are connected to the highest level 5th type exchange (KTC-V) as shown in the diagram, and the configuration also allows the use of satellites exclusively for mobile phone calls. With these, a mobile phone network has been built all over Japan. Further, the MEM attached to each level exchange represents a subscriber information storage unit.

For example, in order to make and receive calls from any area within the 23 wards of Tokyo, the mobile phone according to the present invention can be used as a mobile phone master device.
Approximately 10,000 pieces are required, which is a fully achievable value as will be explained in detail later. Therefore, it can be said that by around the year 2000, mobile phone owners will be able to make calls anytime, from anywhere, and to anywhere in urban areas throughout Japan. In rural and mountainous areas, the situation is almost the same in areas with human habitation.

The above situation assumes that a person with a mobile phone is inside a building or walking on the road. In the following, the call making/receiving operations while on board a car, ship, train, or airplane will be explained. In addition, we will explain the network configuration and method used when the mobile phone owner is in a place with poor radio wave propagation characteristics, such as an underground passage or an underground parking lot.

This case will be explained using FIG. 5(b). In the figure, the meanings of symbols such as KTCi, MEM, etc. are the same as in FIG. 5(a), so they will be omitted, and parts different from those in FIG. 5(a) will be explained.

First, assume that a mobile phone owner gets into a car with the mobile phone still in operation (power on).

In this case, mobile phone owners will still need to make and receive calls in car phone mode, which will be described later, even in the year 2000, but if they accidentally or intentionally do not switch to car phone mode, the following is the operation. Explain. In this case, the downlink control channel emitted from the nearest mobile phone main unit on the utility pole on the roadside can be sufficiently operated by the mobile phone even inside the car. However, once the car starts driving, the relative distance between the mobile phone on the roadside and the mobile phone rapidly increases, and eventually reception becomes impossible. However, at this time, another mobile phone parent device is near the car, and the downlink control CH from this parent device should exhibit a received input electric field value sufficient to be captured by the mobile phone. Therefore, although an attempt is made to store the SID included in the downlink control CH from the cutting-edge device and the CH number that is available as a call CH in the roam area call information storage section of the mobile phone, Because the speed is fast, before the above process is completed, the car moves to a location near another mobile phone master device, and the downlink control channel is already activated.
Due to the drop in electric field, communication with the mobile phone master device that was capturing the information becomes impossible. Specifically, if the vehicle speed is 36 km/h, the speed is Low per second. On the other hand, assuming that mobile phone master devices are installed every 25 meters on the road side, a new mobile phone master device is installed every 2.5 seconds. This means that the mobile phone must capture the emitted downlink control CH. (Difficulties increase as the vehicle speed increases.) In such a situation, even if a call is successfully set up between a certain parent device and the mobile phone, two seconds after the call has started.
．． The communication channel must be switched every 5 seconds, which increases the amount of ineffective system operation, and also increases various types of noise from the viewpoint of the communication quality of the communication channel, which is not desirable. Therefore, the mobile phone of the present invention notifies the control unit that electric field fluctuations (noise level fluctuations) of a certain period or more are occurring due to the operation of the noise level detector shown in FIG. 4(a). The control unit receiving the signal does not receive the radio waves emitted from the mobile phone parent device, and the control unit shown in Fig. 5 (b)
Type 4 wireless base station for mobile phone wide area calling shown in ) (
The oscillation frequency of the reception frequency synthesizer is controlled so as to capture the downlink control icH emitted from the receiver (KRC-IV). It also requests the mobile phone master device to inform KTC-1 that it will call its own mobile phone in wideband calling mode (type 4). Upon receiving this, KTC-1 determines that the mobile phone is in a car, and KTC-1
The PID of the mobile telephone is transmitted to the mobile telephone exchange MTC (see FIG. 5 (bl)) which manages the same area using the downlink control channel from -1 KRC-IV.

request to call. In reality, this request signal is KT
C-I→KTC-II→KTC-m→KTC-IV-M
It is transmitted via the TC and the exchanges at each level.

KRC-IV has enough transmission power to cover a 3-5km radius circle like NTT's pager service, so the mobile phone can transmit data from KRC-TV without sudden fluctuations in input electric field. It becomes possible to receive the downlink control CH well.

If there is an incoming call in this state, the PID of the mobile phone is called from the KRC-IV, so that the call bell section (+8) in Figure 4 can be made to ring. A mobile phone user who inquires about this ringing can respond by using some functions of the mobile phone, as will be described later.

The above explanation uses an example of a regular passenger car that can accommodate a small number of people, but in a car that has a large number of passengers, such as a shared bus or a sightseeing bus, many users may each carry a mobile phone. Therefore, even if the mobile phone cannot be used in the car phone mode, it is possible to receive a call using the same operation in the calling mode as described above.

Similarly, when you board a ship, aircraft, train, etc. and there are many people on board, your mobile phone will be in ship phone mode, and at this time too, your mobile phone will be able to make wide-area calls using the Class 4 wireless base station KRC-IV. It becomes possible to receive calls using radio waves.

It goes without saying that calls from these mobile units can be made using a superimposition technique as described later.

Furthermore, when the mobile phone owner is in a situation where it is difficult to receive radio waves from the mobile phone's parent device, such as in an underground parking lot, the mobile phone can make a type 1 wide area call using the signal from the noise level detector shown in Figure 4 (al). Since radio waves emitted from the wireless base station are received, calls can be received as described above.This case will also be explained in detail later.

Next, a PBX that is installed on the same company premises or in a large building and can operate in the same way as a Type 1 exchange.
Alternatively, a wireless system control device will be explained.

The mobile phone system configured according to the present invention allows calls to be made and received from any party at any location, and it is also possible to continue talking while walking; this mechanism will also be explained. FIG. 5(d) shows an example of a configuration in which the mobile telephone system of the present invention is used within the premises. In the figure, even if the mobile phone n1 (PIDI) moves from place to place while walking along the path near the mobile phone master devices IA, IB, and IC, which are distributed throughout the premises, the call continues. Explain what is possible.

In the figure, a radio system control device RC is installed, and is connected to each mobile phone master device through a transmission path.

Further, as shown in the figure, the RC is connected to a PBX (exchange) corresponding to each call path, and the PBX also accommodates an ordinary fixed telephone. Furthermore, it is assumed that the PBX and the first type exchange are connected through a subscriber line.

Now, assume that a mobile phone makes a call to a general telephone (T1) under the first type exchange in FIG. 5 (dl).

The operations related to making a call will be omitted as they will be explained separately, and it will be assumed that the call is in progress. And mobile phone master device IA
Assume that the user approaches 1B from near O while walking as shown in the same figure. In this state, the distance between IA and PIDI becomes large, and if it exceeds 25 m, the quality of the call will deteriorate. In this state, the S
/N is monitored by the monitoring unit, and due to quality deterioration, the S/N
When the (signal-to-noise ratio) becomes less than a certain value, a request is made to the call control unit to switch the call path from LA-PID to IB-PID. Figure 5(e) shows the wireless system side'4.
``The configuration of device B is shown, and the above request indicates the status of PrD and SID during a call in the call control state (CPU).
D. Search and investigate the SID storage unit, check the call status, and after confirming that the IB is not in a call with another mobile phone, switch the calling party of the mobile phone 1 from the IA to the IB. This means that the CPU uses the switch s W of the communication path switching section.
: + (in the diagram, the black triangle means that IA and T1 are connected) is turned off, and SW2 is turned on (in the diagram, the Sanno angle is changed to a black triangle).

When the above operations are completed, the user of the mobile phone 1 can continue to talk to T while walking.

Similarly to the above, when PIDI gets closer to IC from IB, PID, -IB is changed to PID by switching the communication path.
It becomes possible to change to I-IC and continue the call.

The above explanation is based on the case where the RC is equipped with a call path switching function, and this is a system configuration suitable for large companies with premises dispersed in various places, but or PB in a relatively small campus.
It is more economical to incorporate it inside X.

Mobile phones used in general homes are not housed in such a PBX or RC, but are housed directly in a first-class exchange. In this case, the function of the wireless control device described above is incorporated into the first type exchange, and the mobile phone user can freely continue the call using the same call path switching function as described above while walking. Is possible.

Furthermore, another embodiment will be described as a connection interface with an existing national telephone network, for example, the NTT telephone network, as a configuration of the mobile telephone system according to the present invention. FIG. 5ff> shows this embodiment. As shown in the figure, the mobile telephone network according to the present invention and the NTT telephone network have an interface at the cylindrical exchange level, but KTC-n and below are characterized in that they are completely side networks. Technically speaking, this increases the independence compared to the already explained FIG. In this case, it goes without saying that the KTC-1 can accommodate general telephones and pagers in addition to mobile phones, and the KTC-III or KTC-rV can accommodate car telephone systems. The system configuration example shown in FIG. 5(f) is a configuration suitable for a mobile phone network operated by a corporate entity other than NTT.

In addition, in Figure 5 (f), the contact line with the NTT national telephone network is 3.
Although the same transmission lines are listed, there is no technical problem even if any one or two of them are used.

In addition, the above system configuration (Fig. 5 (a), (b), (
In c) and (f)), the hierarchy of the exchange is assumed to be 5, but this is not necessarily because 5 is optimal. This is because when considering Japan's current nationwide mobile phone network, population, land area, shape, etc. are comprehensively considered. However, even with this assumption, the optimal number of strata may change in the future due to population mobility, changes in the national social living environment, or changes in the economic efficiency of the hardware and software that make up this system.

The number of floors when the present invention is applied in a foreign country varies greatly depending on the population and national character, as mentioned above.

3.5.7 Configuration of mobile phone system according to the present invention when C8 people are employed] Figure 5 (C1 shows the system configuration of a mobile phone system according to the present invention in which the present invention is implemented within the 23 wards of Tokyo. However, as mentioned above, this system This refers to the time of introduction, not the state in which the nationwide network has been completed.

In the figure, each home or office is equipped with a cordless telephone master device (fixed wireless device) that has almost the same functions as NTT's current cordless telephones, and can be accessed by any mobile phone. Furthermore, each utility pole on the aisle side is equipped with a wireless transmitter/receiver that has almost the same functionality as a cordless telephone main unit. These devices, like current cordless telephones, are housed in exchanges at telephone offices or in PBXs at offices, and are treated in the same way as regular landline telephones. However, in this text, the above-mentioned exchange or PBX is referred to as a type 1 exchange, and this exchange also has a memory device (for storing, changing, and erasing the current location information of the mobile phone).
A subscriber information storage unit) is located there.

Hereinafter, it will be explained that the mobile phone of the present invention can make and receive calls in almost all the 23 wards of Tokyo using only the parent device of these cordless phones.

Recently, the Ministry of Posts and Telecommunications announced that the demand for cordless telephones in Japan in the 2000s was 10 million.

This is reasonable in light of the numbers from ■ to ■ in the aforementioned document ``Long-term Prospects for Radio Wave Utilization''. Based on this figure, the demand within Tokyo's 23 wards is estimated to be 1/10 of 1 million. On the other hand, since the total area of the 23 wards is 581 - square kilometers, there are 1721 1.1 cordless telephones in a square of 25 m on a side, that is, one cordless telephone exists in a square of 25 m on a side. However, in the above calculation, it was assumed that the traffic was uniform, but this is considered to be a reasonable assumption since the number of demands is extremely large.

As a result of the above calculation, assuming that the traffic is uniform, one cordless telephone main unit will be installed within a 25 m square. On the other hand, since the service area of cordless telephones is considered to be within a radius of 25 to 50 meters from the parent device,
In the 2000s, it was discovered that calls could be made and received in all 23 wards of Tokyo if a mobile phone could access the parent device of any cordless phone.

However, within the 23 wards, there are places where the radio waves of indoor cordless telephones cannot reach because there are wide roads, playgrounds, underground malls, etc. In these areas, there are places where the radio waves of the cordless telephone A device installed indoors do not reach, and in these areas, there are places where the radio waves of the cordless phone A device installed indoors do not reach. A transmitting/receiving device is installed that faces a mobile phone with a
Or it must be accommodated in the telephone exchange. In addition,
In recent years, many high-rise apartment buildings have been constructed, and consideration must be given to these as well from the viewpoint of radio wave propagation characteristics.

Furthermore, if a large number of people use mobile phones, there is a risk that calls may become impossible due to traffic, but this will be discussed in detail separately.

Furthermore, in order to be able to make and receive calls while boarding a means of transportation that moves at high speed, such as a car, mutual access to terrestrial mobile communications such as a car phone is required. However, these will be detailed later.

(Study of traffic of mobile phone used in cordless phone mode) As already explained, when the mobile phone system according to the present invention is used within Tokyo's 23 wards, if it is used in cordless phone mode, it will be possible to make calls throughout the wards of Tokyo. Although it has become clear that this is possible, since many subscribers will be using it at the same time, there is a problem as to whether it can be used satisfactorily in terms of traffic. In conclusion, the result is that it is technically possible, as described below.

Cordless telephones currently in NTT service have 46 channels on the same portable device, and use a multi-channel access technology that searches for and uses an empty channel when a certain channel is in use.

Naturally, the mobile phone according to the present invention also applies multi-channel technology, and the number of mobile phone users (subscribers) that can be accommodated is determined below, assuming that the number of usable channels is the same as that of a cordless telephone.

The following specifications are used as the mobile phone usage conditions.

i) The number of repetition zones is 12. This is because in order to avoid radio wave interference, channels currently in use are not used in adjacent zones and are used separately.

1i)) Rahifuku is set to 0.037-ran (daily usage frequency is 6 times a day, 3 minutes/time, concentration rate at the most urgent time is 10/1). This is a design condition that is three times the traffic of current car telephones.

iii) Call loss rate B=0.03 This is the same design condition as the current car telephone system.

iv) The area of Tokyo's 23 wards is 581kni, and there is 1 in this area.
Assume that 0,000,000 parent devices are installed. This value would be a reasonable value assuming a system that includes all of the above-mentioned material ``Long-term Prospects for Radio Wave Utilization''.

Based on the above assumptions, the traffic that can be handled by this mobile phone system can be calculated using the following equation. That is, a (46,0
,03) 38.1081=-=1270.3
C person/25X25rrr: 0.03 0.03 a (46,0,03) represents Erlang's loss formula. In other words, it was shown that 1,270 subscribers could be used in a 25 m square area under the above usage conditions.

Here, since the number of repeating zones is 12, the number of subscribers accommodated per zone is 1270.3 - = 106 (persons/25x25rrr), or 25m.
It was shown that 106 people in a square area could be used under the above conditions of use.

Therefore, within the range of 1 kj, there are 169,600 (people/kj) x 581 (kd) = 9 in the entire Tokyo ward.
It can be seen that 854,000 people/23 wards, or approximately 9.8 million people, can use the service. By the way, the current population of the 23 wards is approximately 8.6 million people, so this value exceeds the total population, indicating that the city has sufficient carrying capacity. However, in places where many people gather to apologize, such as downtown areas, event venues, and baseball stadiums, there is a large amount of traffic from mobile phones, so it is necessary to install many mobile phone master devices in the same place to handle this traffic. occurs.

Technically, this is completely possible, and in this case, the configuration of the parent device would be to centrally install a large number of parent device radios within the same rack, such as in a car telephone base station. As described above, since the amount of traffic will increase in the future and it will be used frequently for business purposes, it is foreseen that the current number of allocated channels, 46, will not be sufficient. In fact, in 5 to 10 years, we will need 2 to 4 times as many channels, up to 200 channels.

However, even in this case, it is within the range that is sufficiently possible under the current frequency allocation circumstances, and the practicality of this patent is not restricted in any way.

Incidentally, compared to the 600 channels allocated to the current car telephone system, the number of required channels in the present invention remains extremely small at 1/3 of that number.

In addition, future advances in diversity technology will reduce the number of zone repetitions (7 zones, about half the 12 zones, will be possible) and narrow the carrier wave frequency interval per channel (currently 12.5 KHz to 10 Hz or less). There is a possibility that the frequency bandwidth used will not be much different from the current one.

3, 5.8 (Example of realizing a system that coexists with various existing mobile communication systems) The mobile phone referred to in the present invention is ultimately a system that carries the same mobile radio terminal and can make and receive calls from any location in the country. However, since it will take many years to complete, we will introduce it in parts in stages, and in areas where it has not yet been introduced, we will introduce it into various currently used mobile communication systems to achieve almost the same effect as the present invention. As an example, it is shown that it is possible to obtain the effect.In each of the following cases, as a mobile phone in the corresponding mode, i. ii) When using a mobile phone while walking on the road, etc., use a cordless phone or a mobile phone in pager mode. iii) When using a mobile phone while riding in a car, use a mobile phone in car phone mode. Telephone iv) If you are on a train, a mobile phone in train phone mode ■) If you are on a ship, a mobile phone in ship phone mode vi) If you are on a ship using maritime satellite communications vi) When the user is on board an aircraft, a system is realized that can be used as a mobile phone in aircraft telephone mode. That's true.

FIG. 5(a) shows a national telephone network configuration according to the present invention.

This will be explained in detail below, but to summarize here, the system is configured such that the mobile phone (terminal) used in the method of the present invention can be used in each of the above-mentioned modes by being inserted into a commercially available terminal. It means that.

In other words, when you are in your office or home, you can coexist with these systems just like you would with a current cordless phone (in the following explanation, this will be referred to as "superimposed" because the two systems can be used as if they were the same system). used).

Furthermore, when riding in a car (naturally, the mobile phone terminal of the present invention will be brought into the car), it is designed so that it can be connected under the interface conditions of the car phone terminal, and it is compatible with the car phone system and system. It will be used while overlapping.

The system configuration can be easily changed so that it can be superimposed on various systems such as pagers, train telephones, ship telephones, etc., and the mobile telephone terminal of the present invention can be used in each system mode.

Hereinafter, it will be explained in detail that this is technically possible and economically possible without incurring an exorbitant system cost.

3.5.8-1 (Functions that should be added to the cordless telephone system necessary for use in cordless telephone mode) N.
There is a TT system, but as mentioned above, this type of system consists of a portable telephone and a parent device that is connected to the telephone via a wireless line and to the exchange via a wired line. There is. Furthermore, this phone and the parent device connected to it usually have a specific affiliation relationship, and the phone can communicate with other parent devices other than that specific parent device even if they are installed within a short distance where wireless communication is possible. A system in which communication is not possible even if a specific parent device has a specific combination of telephones with which it is located, and even if other telephones exist within a short distance where wireless communication is possible. Met.

However, in order to use the mobile phone used in the present invention in the cordless phone mode, the mobile phone needs to be equipped with means that can always connect to a parent device other than the specific mobile phone parent device connected to it via a wireless line. There is.

Even if the mobile phone is carried to any location within the premises while in a talking state, continuous communication can be ensured if there is a partner's master device that satisfies the call quality at that location. The system configuration diagram in this case is similar to that shown in FIG. 3(a), and the functions described below are added to this. Further, the configuration of the mobile phone is shown in FIG. 4(a).

In order to use the mobile phone used in the present invention in the cordless phone mode, the following functions should be added to the current cordless phone main device.

i) Receives a location registration signal from any mobile phone, stores it in its own device, and transmits subscriber information of the mobile phone to a wireless system control device, PBX, or a first-class exchange such as a central office exchange.

ii) When the mobile phone receives an incoming call, the mobile phone transmits the PID signal of the mobile phone through a control channel to enable the incoming call.

iii) When making a call between a mobile phone in the roam area and a mobile phone master device, the PID of the calling mobile phone.

The call time and other information are transmitted to the subscriber information recording unit (charging unit) included in the first type exchange.

[Functions to be added to wireless system control equipment for cordless telephones or PBX (see Figure 5 (d)) or end office exchanges (hereinafter, exchanges with added functions are referred to as type 1 exchanges)] (i) Cordless telephones It stores subscriber information such as the PID signal of the mobile phone sent from the parent device.

(ii) If the PID of a mobile phone in the roaming area is accepted among the PID signals in item i), the PID
Investigate the contents of the signal. As a result, if it is determined that the mobile phone is in use in a type 1 roaming area, the current location of the mobile phone is reported to the subscriber information storage section of the type n exchange. In fact, it is sufficient to send the signal to the subscriber information storage section of the second type exchange.

This is because the type 2 exchange also examines the contents of the PID signal and determines whether or not the signal should be sent to a higher level exchange.

(ii) When an incoming call signal destined for the mobile phone comes from a type 2 exchange or a mobile phone or general telephone set under the own exchange, the incoming call signal is sent to the parent device.

By adding the functions described above, a cordless telephone can be used as a mobile telephone system according to the present invention. FIG. 4(b) shows the parent device.

The internal configuration of the mobile phone and the wireless channel configuration between both devices are shown. Furthermore, FIG. 7(a) shows the flow of calls between the two devices.

The above explanation has been made on the assumption that by adding functions to a current cordless telephone, the functions of a terminal device, etc. in the cordless telephone mode of the mobile telephone system according to the present invention can be fulfilled. In fact, if the mobile telephone system according to the present invention becomes widespread, the prevalence of cordless telephones will rapidly decrease, and the mobile telephone system will become widespread in fields that were conventionally considered to be applicable areas of cordless telephones. However, in the above-mentioned [long-term outlook for radio wave use], the current system ■～■
We do not foresee the emergence of a system that includes all of
For example, since the number of G-less phones is expected to be as large as 7 million nationwide, instructions for using the mobile phone of the present invention while walking, inside the house, or at an event venue have already been provided to 70 million people nationwide.
This study assumes the distribution of parent devices within a region where cordless telephones are widely used, and clarifies the differences in usage, hardware, software, etc.

Therefore, if the mobile telephone system according to the present invention becomes widespread, the cordless telephone system, which has become less popular, will become a system that can be handled by omitting some functions compared to the mobile telephone system.

[Functions that should be added to the car phone system for use in car phone mode]

In order to enable the mobile phone used in the present invention to be used inside a car, it is a prerequisite that a car phone currently in service is installed in the car.

In other words, in the distant future, it is impossible at the current technological level to make a mobile phone brought into a car available for use at all times without the assistance of a car phone system.

First, the NTT system configuration used in practical use as a car phone and the network configuration used in the present invention will be explained.

Figure 9 shows this. The right half of the figure shows the car phone system configuration, the left half shows the network configuration used in the present invention, and the broken line in the center shows the interface.

The following document was referred to for the car phone system configuration in the same figure (
"Car Telephone Radio Line Control" Research and Practical Application Report Vol. 26, No. 7, 1977, ) 3, 5.8-2 (Regarding the method of superimposing the mobile phone system with the car phone system) Now, below, the mobile phone system according to the present invention A method of superimposing this on the current car telephone system will be explained using FIG.

In the figure, the left side of the broken line is the mobile telephone network used in the present invention, and the mobile telephone network is accessed from KTC-■ to the mobile telephone exchange MTC. That is, the fourth type exchange is connected to the mobile telephone exchange (MTC). In addition to the direct lines connecting the mobile phone exchanges, each exchange has transmission lines extending through telephone lines and control lines to the radio line control station and further to each base station. Each base station and car phone are connected wirelessly. The functions of each station making up these car telephone systems will be explained separately.

There are several types of superimposition methods.

The simplest method that does not put a burden on the car telephone system is to bring a mobile phone into the car, as shown in Figure 12(a), and make calls from the car phone to the car telephone exchange (MT C' in Figure 9). Special number (for example, ##01-XXX
-XX-XXX-XXXX, numbers other than ##01 are mobile phone PIDs, ×-0゜1.2.・−・−9 arbitrary number. In reality, you can use speed dialing, etc., and this location registration can be easily carried out), and then dial the MTC
The location of the mobile phone is registered in the subscriber information memory section of the mobile phone. However, in this case, it is assumed that the MTC is required to add a function to accept location registration from a mobile phone.

Car phone (number YY-YYYYY, Y=0, 1.
2. The MTC subscriber information memory unit that receives the location registration from the mobile telephone (an arbitrary number between The receptionist also remembers the location registration. Also, MT
In C, the mobile phone is in a state where the mobile telephone system is overlapped with the type 4 exchange that controls the MTC, and the location registration is notified to the own MTC subscriber information memory unit that the registration is complete. conduct. Upon receiving this notification, the 4th class exchange decodes the PID of the mobile phone and sends subscriber information such as current location registration information of the mobile phone to the 3rd to 1st class exchanges that manage the mobile phone. Transmit and memorize each.

The above processing on the landline telephone station side is completed and the mobile phone waits for the call to be made, but with this method, no calls are made from the mobile phone after this, and all these operations are performed by the car phone. I will do it.

Note that if the power is turned on, it will be easier to receive a call as described later.

However, since billing must be done not to the car phone subscriber but to the mobile phone subscriber, the following dialing operation is performed.

That is, first, when the handset of the car telephone is lifted, the following mobile station calling operations i) to iv) proceed.

i) When the mobile station makes a call, when you lift the handset, it sends a calling signal (your subscriber number and call display).■
. The wireless base station receives this and sends it to the wireless line control station■. (Refer to FIG. 10) ii) The radio network control station indicates an empty communication channel in the radio zone using a transmission control channel.

iii) The radio network control station sends a calling party number signal to the mobile telephone exchange via the control line.

iv) Upon receiving this signal, the mobile telephone exchange reads the subscriber data from the home memory station to which the calling subscriber belongs, and analyzes the subscriber data.

Next, dial ##02 before the other party's number, and then dial the other party's number. Thereby, the process moves to operation (v) below.

■) As a result of the analysis, if the call can be made (■), the mobile telephone exchange requests the mobile station to send dialed digits via the radio network control station (■).

The mobile telephone exchange decodes ##02, determines that the call is from a mobile phone, and searches the location information memory section to see if the location of the mobile phone is registered. As a result, when it is confirmed that the mobile phone is superimposed on the car phone (number YY-YYYYY), the charging information memory section is made ready for charging when a call is started. Also, notify KTC-■ of calls made from the mobile phone■,
■.

vi) After receiving the dial signal, the exchange operates in the same way as a regular telephone, KTC-IV, KTC-m, KTC-n and KT.
The called party will be called via C-1. However, the number of calls is registered for the mobile phone, not the car phone. In addition, in order to bill the charges for the mobile phone, for example, the information is transferred to the first-class exchange billing department that manages the home area of the mobile phone, and the charges are added up with the charges registered in other ROHM areas. This will be done to the phone owner■.

The above operation is illustrated in FIG. 10.

Kunjujo Nihiki I Tanuki Next, incoming calls will be explained.

In this case, the mobile phone may already be connected to a mobile telephone exchange (MT).
It is assumed that location registration has been completed in the subscriber information memory section in C).

Now, let's assume that the owner of the mobile phone is making a call from a general telephone at any location in the country, and from a place where the mobile phone is not accommodated (managed) (including a Type 4 exchange). In this case, by dialing the PID of the mobile phone, the first
~The type 3 exchange knows that the mobile phone is under another type 4 exchange, and transmits the called mobile phone PID to the type 4 exchange that manages the own exchange. The type 4 exchange that receives these signals transfers these signals via the type 5 exchange or directly to the type 4 exchange that manages the called mobile phone if there is a direct line. The fourth type exchange that receives this signal searches the subscriber information storage unit of the own exchange for the PID. As a result, the mobile phone discovers that it is superimposed on a car phone (number YY-YYYYY), and contacts the car telephone exchange that manages it to initiate a call operation.

This operation is similar to the above-described call receiving operation of the mobile phone mobile station, but in this case, the called party number is the car phone number (YY-YYYYY) instead of the mobile phone PTD.

Then, the following operations i) to ix) are performed in sequence.

i) The mobile telephone exchange reads subscriber information from the home memory station to which the called subscriber belongs.

ii) If the subscriber is free based on this information, a paging signal is transmitted to all radio network control stations within the designated paging area via the control line.

iii) The radio network control station calls the called mobile device using the incoming call control line through all radio base stations under its control.

iv) The mobile device automatically transmits a response signal through the incoming call control line. The radio base station sends the received response signal to the radio network control station. The radio line control station sends an incoming call response signal to the mobile telephone exchange via the control line.

(2) Upon receiving this signal, the mobile telephone exchange sends a ringing tone to the called subscriber and a ringback tone to the calling party.

vi) The operation of the exchange after the car phone subscriber responds is almost the same as that of a regular telephone.

In the unlikely event that a car phone receives an incoming call (or an outgoing call) and the call cannot be received by the car phone, the MTC will recognize this and use the radio waves of the mobile phone's wide-area call type 4 wireless base station. It is also possible to directly call the mobile phone IIP ID.

The above explanation is for the case where the calling phone is housed in a different type 4 exchange from the mobile phone, but calls can be made in the same way if the calling phone is housed in the same type 4 exchange. It is. That is, in this case, the calling signal from the calling telephone is transmitted to any of the first to fourth class exchanges in which the mobile telephone is accommodated, and the mobile phone is retrieved by searching in the subscriber information storage section of the exchange. As a result of finding out that the telephone is superimposed on the mobile telephone system via the mobile telephone exchange MTC, the call signal is transmitted from the exchange via the fourth type exchange to the MTC.
This is because it is transmitted to the TC. The following call receiving operation is exactly the same as the above explanation.

Note that the billing to the calling telephone is carried out in the billing information storage section of the subscriber information storage section of the exchange accommodating the telephone, which is exactly the same as billing for ordinary telephones.

Further, the call termination operation is exactly the same as the call termination operation in the above-mentioned car telephone system.

To release a mobile phone from the overlapping state of the car phone system, send a special number from the car phone to the mobile telephone exchange (MTC) (for example, **l 1-xxx -xx-xxx-x
xxx) and cancel the location registration of the mobile phone from the subscriber information memory section of the MTC.

A superimposed embodiment of the present invention will be described below, which allows the mobile phone to be used even in a car, compared to the first method described above, although the modification of the mobile phone to the car phone system is increased.

In this case, the car phone and the mobile phone are hybrid-coupled when viewed from the car phone mobile phone body (Fig. 12(b)), and the two are connected in parallel when viewed from the mobile phone body. becomes. Therefore, for car telephones, [
It becomes necessary to modify the mobile phone main body to have a signal transmission and reception interface with the car phone as well as a signal transmission and reception interface that allows calls to be made and received with the mobile phone.

Specifically, the above-mentioned interface is made possible by the following method (1) or (2).

■A signal converter, a memory 1 discriminator, etc. are added to the mobile phone body for making and receiving calls from a mobile phone.

■Match the mobile phone's call signal interface to the car phone.

As a practical matter, it is not advantageous to implement (①) considering that mobile phones overlap with ship telephone and aircraft telephone systems.Mobile phones must be made as light and compact as possible in consideration of portability. Because it is desired. Therefore, method (2) is used, but the car phone system is widely used in Japan, and it is not economical to equip all car phone mobile devices, so it will be limited to only certain types. Alternatively, it would be more realistic to install a separate mobile phone adapter. An example of an actual connection circuit is shown in FIG.
I"SWz is configured to work together, and is usually connected to the ■ side. When superimposing with another system, switch
,~Turn SW2 to the ■ side.

As a result of this operation, each transmitting and receiving radio section of the mobile phone is separated from the telephone section (the power supply is also turned off), allowing it to operate as a telephone section with the same functions as the telephone section of a mobile phone. becomes.

One way to provide the function (2) is to consider the condition (2) when developing an advanced car phone system. Furthermore, if the interface between the radio section and the telephone section can be made common when changing the mobile communication system such as a car telephone system or a ship telephone system, the feasibility of (2) will be improved.

Now, if the measures described above are taken,
The ability to make and receive calls from a mobile phone brought into a car will be explained below.

First, a method for registering a location from a mobile phone to the MTC in FIG. 9 will be explained.

Assume that the mobile phone is turned on and ready to make a call. At this time, the mobile station originating operations i) to (ii) described above are carried out. The user moves on to the dialing operation, but the user only needs to dial, for example, the special number ##01 as mentioned above. From the mobile phone, add (YY-YYYY) to this number.
A signal of Y+P ID) is automatically transmitted to the wireless base station. When this signal is received by the MTC, the MTC subscriber information memory unit registers the current location of the mobile phone (
(This is not necessary if it has already been completed), and the reception also stores the location registration of the mobile phone.

In addition, in MTC, as mentioned above, the mobile phone is in a state where it is overlapped with the car phone system for the type 4 exchange that has an interface with MTC, and the location registration is performed by the own MT.
C. Notify the location information memory unit that registration is complete. The Type 4 exchange that received this notification
The ID is decoded, and the subscriber information of the mobile phone is transmitted to the Class 3-1 exchange that manages the mobile phone and stored.

Now, after the above location registration is completed, making a call from the mobile phone can be performed with the same operations as making a call from a car phone. Further, billing to the mobile phone is also performed using the same method as the above-mentioned superimposition method.

Next, regarding incoming calls, the call is received using the same operation as the superimposition method described above, but the ringing is not to the car phone but to the mobile phone, and the user can use the mobile phone while in the car. It is now possible to make calls using the .

In this case, the superimposition can be canceled by dialing a special number (for example, **11) from the mobile phone.

The third method of superimposing a mobile phone on the car phone system is that it puts a heavier burden on the car phone system than the second method and requires modification, but it does not require any hardware or software operations for the mobile phone. There are also methods that do not require any changes. This will be explained below.

This is a method of making and receiving calls from a mobile phone brought into the car by having the car phone mobile unit installed in the car operate as a mobile phone master device, which requires the following modifications to the car phone. .

■Equip a mobile phone with the function of a mobile phone master device.

In addition to ■■, the functions of the mobile phone control unit will be strengthened in order to achieve both the function of ■ and the original functions of a car phone.

Since it is not wise to make the above modifications be applied to all mobile phone terminals, it is recommended that only those mobile terminals that are intended to overlap with mobile telephones be equipped with the modifications described above.■.

A practical method is to provide the function (2) separately from the mobile device as an adapter.

Although the above description has been made regarding the case where the mobile phone used in the present invention is superimposed on a car telephone system, it can also be realized in a ship telephone system or an aircraft telephone system by applying the same method. FIG. 5(b) or (C) shows the connections between these systems and the network configuration used in the present invention. Both systems have an interface with KTC-IV.

3, 5.8-3 (Regarding the method of superimposing the mobile phone system with the pager system) The mobile phone used in the present invention can be carried while walking on city streets and can make and receive calls in cordless phone mode. This has already been explained, but below we will discuss how to combine it with the pager system currently in service.

The significance of combining the mobile phone system with the pager system is as follows.

That is, although it can be used in a cordless telephone mode in urban areas, the transmission power of radio waves of the mobile telephone or cordless telephone of the present invention is extremely weak at about 6 m-. Therefore, if there is an obstruction or the like in the space near the transmission, the radio wave propagation characteristics deteriorate and the quality of the call deteriorates, or in some cases, the call becomes impossible. It is necessary to take into account that this often occurs especially in large buildings, underground malls, underground parking lots, etc.

On the other hand, the transmission output of radio waves emitted from a pager type base station is extremely high at 250 MHz, and the current service maintains a fairly good call rate even in a closed space on the first basement floor. Therefore, when the cordless phone is on standby (downlink control CH is being captured), the control CH of the cordless phone master device or mobile phone device is
If the mobile phone cannot be captured, the wireless frequency of the control channel on which the mobile phone is on standby is changed to the paging frequency of a pager rather than a cordless phone.

This is possible in terms of hardware, and when the noise level of the noise level detector exceeds a certain value in the mobile phone shown in Figure 4 (a), the frequency of the reception frequency synthesizer is set to a pager-type call according to instructions from the control unit. frequency. After that, the mobile phone operates in exactly the same way as a pager (portable device) of the pager type. 7) shows the flow of the call receiving operation.

K in Fig. 5(C) is used for the pager system calling base station.
It is assumed that a function has been added so that a calling radio wave is sent when a control signal for calling the PID comes from the TC-I.

If the base station calls the pager in this state, the call switch is turned on (the handset hangs off). At this time, check the instructions on the call availability display (blue indicates possible, red indicates not) on the mobile phone, and if it is possible to make a call, use the nearest cordless telephone (or mobile phone) main device (S
ID), and sends out a call signal using its own PID on the uplink control channel. KTC-I receives the PID+SID signal, finds that PID is in SID, and sends SIDID
Issues a discharge call signal.

The parent device receives an incoming call signal from KTC-1,
After confirming the PID+ of the mobile phone, an incoming call signal is sent to the mobile phone. After that, you can make a call using the same flow as when receiving a call in cordless phone mode (see Figure 7).
a)). During this time, the caller is provided with a voice service such as "You are currently being called by a pager. Please wait for a while" from the local exchange for pagers (class 1 exchange a in the present invention). (Figure 7 (
(See b)) If the call availability display on your mobile phone cannot be displayed, walk to the first floor if you are in a basement, or near the exit stairs to the ground level if you are in an underground mall, and then check the call display again. Check the display, and if the call can be made, it indicates that the downlink control channel of the nearest cordless phone (or mobile phone) parent device has been captured, and the caller can be contacted by the same operation as above. It can be done. FIG. 7(b) is a diagram showing the operations described above in relation to the operations of each part of the network according to the present invention.

Finally, the functions of the portable cell phone wide area call type 5 base station (satellite abbreviated as KRC-V) will be explained.

Around the year 2000, the mobile phone system used in the present invention in Japan became very popular, and users could use it anytime, anywhere.
It seems that a situation is emerging in which calls can be made anywhere. However, even in this era, there are still certain areas of Japan where the above conditions are not satisfied. One of them is that when a mobile phone is located in a steep mountain range such as the Japanese Alps, the radio waves from the nearest mobile phone master device or pager base station do not provide sufficient input power to the mobile phone, and the incoming call signal cannot be received. This is the case when the information is not transmitted. Two of them are mobile phone owners who are onboard ships or aircraft on ocean voyages.

In addition to the mobile phone system used in the present invention, dedicated communications and other public communications may be considered for communication in these locations, and the system according to the present invention is also applicable. In other words, it is the use of a type 5 wireless base station for wide area calling of mobile phones using satellites. In the following cases, a call is made in response to an instruction by a control signal from a type 5 exchange.

■ When the subscriber predetermines the period and area of use, and calls are limited to a specific number of incoming calls (or to all incoming calls).

■ If a normal incoming call is received and there is no response, or if there is no response to a call from a wide area call type 1 wireless base station or a call from a wide area call type 4 wireless base station, the subscriber's contract will be suspended. When calling based on.

■ When the called party is a VIP or an emergency communication is required.

For ships sailing in the ocean, if the ship is equipped with other communication equipment, it will be possible to make and receive calls by adding a function similar to the system overlay to a car phone to the communication equipment. . That is, incoming calls are made using satellites,
After receiving this, communication using the mobile phone will be performed using the communication equipment equipped on the ship. The same applies to incoming calls while boarding an aircraft.

In steep mountains such as the Japanese Alps, even if a wide area call is made by satellite, a response cannot be expected because there is no wireless equipment nearby, so it is desirable to include communication information in the call signal. In this case, the called party can receive the sent communication information by displaying it on the display of his/her own mobile phone or listening to it as audio information.

The traffic of transmission signals from mobile phone wide area calling type 1 (n=1°4 and 5) radio base stations will be explained. As described above, most of the mobile phone traffic used in the present invention is cordless phone mode traffic.

Therefore, although only a small number of wide-area calls are made overall, the type 1 radio base station has relatively large traffic. Next is the 4th type wireless base station, and the type 5 wireless base station that has the least traffic is the 5th type wireless base station, which uses satellites. In this respect, since satellites are often used for other communications, it is thought that the calls to mobile phones according to the present invention will be used in a way that the facilities of other systems are shared. Therefore, the cost of the system does not become extremely high, and it is considered possible to use the system in a harmonious manner as a whole.

3.6 (How to use the mobile phone and system operation) The following describes how to use the mobile phone used in the present invention while walking around the house or in a car, etc., and how to use it for credit purposes other than communications or as a certificate. This section explains general usage such as

First, how to use it when you are in your home area is no different from a normal telephone or a cordless telephone currently being serviced by NTT, and there is no particularly new processing on the network side, so a description will be omitted.

i) Making/Receiving Calls from Type 1 Roam Area Next, consider a case where you leave your home area and, for example, take a walk to a nearby park. Here, enter the mobile phone owner as A.
Let Mr. A's PID be PID+. Now, Mr. A began his walk carrying his mobile phone with him, but normally the power switch of his mobile phone would be turned OFF.

That is, this is to save power and extend the life of the battery. Of course, you can leave the power switch on, but in this case, the mobile phone that is receiving the control signal will use the downlink control channel sent from the mobile phone master device installed in each nearby house as you walk. If the parent device receives this signal, the location registration will be changed every time the parent device changes. That is, the downlink control channel sent from each parent device includes the ID of the parent device.
A SID signal is constantly flowing, and the mobile phone that receives this checks the parent device SID signal in its own memory and finds that the SID is different from the SID already stored (
In other words, it detects that it is in a type 1 roam area), and at this time sends its own PID and signal addressed to the new parent device using an uplink control channel for registration.

The new master device that received the PID+ signal searches its own memory and recognizes that the PID is not the PID of the mobile phone that is always paired with the own device. A request is made to the subscriber information storage unit to register the location of the mobile phone.

At this time, the signal is transmitted between the parent device S I Dz and the mobile phone P.
Since the signal consists of a signal with the addition of ID and ID, the subscriber information storage unit of the first-class exchange that receives this signal rewrites the current location of the mobile phone from the home area SID+. If you are in the parent device SID, new information will be stored. Furthermore, at this point, it is of course possible to use the mobile phone as a new tax device, and Mr. A can talk to the other party on the street via a third party's parent device (SID2).

In other words, for making calls, it is already possible to access the new tax device SID, and if you perform the same dialing operation as making a call from the home area, the call signal from the mobile phone will be received via the new device. The type 1 exchange that accepted the mobile phone searches the subscriber information memory section to confirm that the current location of the mobile phone is registered in the parent device SID of the type 1 ROHM area, and charges the mobile phone to the type 1 exchange 1. Instruct the department to charge the bill in PID and name at the time the call starts.

The process of investigating the telephone number of the called party, communicating a predetermined relay route, and sending a ringing signal to the called telephone is the same as a normal telephone.

Next, regarding the incoming call to the mobile phone, the incoming call signal from any phone anywhere in the country will go to the first type exchange, just like an ordinary phone call, but here the called party will be connected to the mobile phone. When it recognizes that the telephone is the destination (this can be easily identified because the PID signal structure is different from a regular telephone number), the location of the telephone is always registered in the subscriber information storage unit of the exchange to determine whether the telephone is in the home area or not. Search the storage section and check each time.

As a result, when it is confirmed that the mobile phone is currently registered in the parent device 5IDz, an incoming call signal addressed to the mobile phone PIDI is sent to the parent device 5IDz. Upon receiving this, the parent device 5 ID2 searches the PID signal memory section in its own device, and when it confirms that the PID is registered in its own service area, it sends a PID+ signal to call the mobile phone using the downlink control channel. Send out. Upon receiving this signal, the call bell section of the mobile phone rings, and when Mr. A puts it into a hang-off state, he is able to talk to the caller. In addition,
In this case, the type 1 exchange sends the caller's calling back tone, etc. in the same way as a normal telephone, so the details will be omitted.

As described above, in the vicinity of the home area, the location registration of the mobile phone is only performed in the subscriber information storage unit of the first type exchange, but not in the second type or higher type exchanges. This is natural since Mr. A is in the area managed by the first-class exchange, so there is no need for intervention by the higher-level exchange. In other words, when an incoming call is received from any telephone anywhere in the country, the incoming call signal is transmitted via the first type exchange that manages the mobile phone, so the first type exchange (the exchange that manages the first signal roam area) This is because it is sufficient to search the location registration storage section of the subscriber information storage section housed in ).

In the above explanation, the mobile phone carried by Mr. A was in a state where it could make and receive calls, that is, it was in a state where the power was on. However, the power is normally off and the power is turned on only when Mr. A wants to make a call. However, in this case, if there is an incoming call, the current location of the mobile phone is not registered in the subscriber information storage unit (location registration storage unit) of the first type exchange, so the call will be made assuming that the mobile phone is in the home area. . If the home area is equipped with a fixed-line telephone set to pair with the mobile phone, it will ring, but if it is not, at a certain timing, the first-class exchange will indicate that the mobile phone is not in the home area. judge,
An automatic response is sent to the caller saying, ``The mobile phone you are using is not in your home area.'' Therefore, users such as salesmen and doctors who need to constantly make and receive calls will use the device with the power turned on at all times.

Now, suppose Mr. A arrived at a park not far from his home, sat down on a bench, and was resting for a while when he remembered something and wanted to make a call using the mobile phone he was carrying. In the park, base devices for mobile phones are installed on utility poles and the like in various places, and it is assumed that it is possible to talk to any of these base devices at any location in the park. When Mr. A turns on his mobile phone, the mobile phone's radio unit starts capturing the downlink control channel from the nearest parent device. Therefore, when the downlink control channel of a certain parent device 5rDi is captured, the SID and signal of the communication partner are stored in the memory section of the own device, and the own PID + signal is transmitted through the uplink control channel to the parent device 5rDi.
Send to Dx.

Parent device SID that received this! Now, go to the own device memory section.
When I D+ is stored, at the same time, a location registration request signal (P I D+ + S I 'D=) addressed to the first type exchange is sent. Upon receiving this signal, the first type exchange transfers the signal to the location registration storage section in its own subscriber information storage section, rewriting the previous memory and storing that PID+ is within the parent 5ID3 service area.

As above, the current location of Mr. A's mobile phone has been registered, so future calls will be made in the same way as when Mr. A had always turned on the power and his mobile phone was always ready to make and receive calls. This is possible through action.

After completing the above-mentioned business, Mr. A was on his way home, but as he passed under the railway guard, an incoming call signal rang from his mobile phone. Since this ringing had a different tone than an incoming call from the mobile phone's master device, it was immediately clear that it was the ringing sound from the mobile phone's wide-area call type 1 wireless base station. When I looked at the call availability display on my mobile phone, I saw a red light indicating that calls were not possible, so I gave up trying to turn on the call button (in this case, the incoming call light works as an on-call button) and continued walking. When I passed under the guard, the light changed to blue and I was able to receive a call, so I turned on the button. Then, you can talk, and when you start saying "mojimoji", the other party is A.
I was able to open a business through his wife.

11) Calls made and received from the Type 2 roam area Now, after completing the above business, Mr. A decides to end his walk and returns home, where he will now go to the office to handle a certain business. Suppose we did.

Although Mr. A's office is located in the same city as his home (for example, Hoya City, Tokyo), his office is located in a different area (a Type 2 ROHM area) where the telephone exchanges that house telephones are different. -I decided to go out. Mr. A's mica
Since the car is equipped with a car phone, there is no problem with making phone calls from within the car, but due to circumstances where the car phone is subscribed to, if you use it for personal use, you may be able to access someone else's phone without permission. I don't really feel like borrowing it, so I almost never use it. In such a case, as already detailed, the mobile phone system according to the present invention can be superimposed on the car phone system, so if this is applied, the user's mobile phone can be used even in the car, and billing can be done using the mobile phone as well. This is done in a timely manner so that it does not cause trouble to others.

However, let us assume that this was not necessary today and that we arrived safely at Mr. A's office.

Mr. A could go straight to the office and work, but he remembered that he needed to go shopping, so he went shopping at a store near the office. A
His shopping trip was to get a new top and bottom of his suit. Mr. A made the payment using the mobile phone he carried without using cash. As explained in the previous chapter, this is possible. On the way home, I remembered another matter and turned on my cell phone to make a call. Then, it captures the downlink control channel of the mobile phone master device (SID3) installed on a nearby utility pole, and the first type exchange that manages this mobile phone master device uses the same process as described above. K.T.
A current location registration request signal is transmitted to the subscriber information storage unit (location registration memory unit) of C-1-(2). Upon receiving this, the location registration memory section determines from the signal structure of the PID+ signal of the mobile phone that the mobile phone is not an optical switch, but a mobile phone that has a home area in another type 1 switch (KTC-1-1) within the same city. It determines that it is a telephone, registers the location of the mobile phone in its own location registration memory (PID, +SID), and manages the visual device and the mobile phone (manages the second type roam area). Type 2 exchange (
Sends a location registration completion signal to KTC-u-1> and reports that the mobile phone master device SID3 has received a location registration request for the mobile phone PID under KTC-I-1.

Upon receiving this report, the second type exchange stores the information in the location registration storage section of its own subscriber information storage section, and at the same time, the first type exchange (KTC), which manages the home area of the mobile phone, stores the information in its own subscriber information storage section. -1-1) versus KTC-1
-2, and requests the location registration storage unit in the subscriber information storage unit to register (rewrite) the location registration location of the mobile phone. In response to this, the first type exchange (KTC-I-1) rewrites the information in the subscriber information storage section.

Now, from this point on, Mr. A is able to make calls to any location in the country, but in this case, the network.

The operation is exactly the same as the above-mentioned calling in the park, so the explanation will be omitted. However, regarding billing, the billing information storage unit of the first type exchange subscriber information storage unit charges p I D +, and the billing information is periodically transferred once a month to the first type exchange billing unit where Mr. A is located. Mr. A is now billed in one lump sum.

Also, the incoming call to Mr. A's mobile phone will be explained. Incoming calls are possible after location registration is completed, but if the caller is under the switchboard that manages Mr. A's home area, the caller will be able to receive a call from the first type exchange 1K.
The current location of the called party is determined at the level of TC-I-1, and the incoming call signal is transferred to KTC-I-2 via KTC-11-1, and the incoming call to the mobile phone is executed.

Next, in the case of a call originating from a telephone set under the first type exchange KTC-1-2 that manages the parent device in the first type roam area, the connection is completed only by KTC-I-2.

Furthermore, if the call is made from a location other than the above two cases, that is, from a higher-order roam area that is above the type 2 area, the called telephone signal will enter the KTC-IF-1, so the called telephone signal will be sent to the KTC-IF-1. When it is analyzed and determined that it is addressed to a mobile phone, K
The subscriber information storage section in TC-n-1 is searched to check the location registration of the called mobile phone. As a result, the first subordinate
It is confirmed that the mobile phone exists in the roam area managed by the type exchange KTC-1-2, and an incoming call signal addressed to KTC-1-2 is transmitted. KTC-I-2 that received this signal
Then, it searches its own subscriber information storage unit and sends an incoming call signal to the PIDt of the mobile phone via the mobile phone master device (SID3) which is the current location registration location of the mobile phone.

As a result, the bell section of the mobile phone rings, and Mr. A is able to enter the hang-off state and begin the conversation.

The above explanation was for the case where the call was completed within the Type 2 roam area. The operation of this system will be described below when the owner moves from a type 1 roam area to a type 2 roam area while the mobile phone is powered on and in a standby or talking state.

One day, Mr. A decided to walk from his home (Hoya City) to his office, carrying his mobile phone with it turned on. As mentioned above, when a mobile phone leaves its home area, it receives a downlink control channel signal sent from a mobile phone master device installed in a third party's residence or on a utility pole on the street. Correspondingly, I sent out a PTD+ signal from my mobile phone using the uplink control channel to register my location, but as I continued walking, I reached a place beyond the area controlled by the first type exchange. When this area is crossed at the next point, the parent equipment installed there (which is under another first-class exchange KTC-1-2) will exchange signals using the control channel as before. A location registration signal is sent, but the PI from the mobile phone via the parent device is
D. Another first-class interchange aircraft KTC-I-2 that received the signal.
(located in the same Hoya city), as a result of investigating the PID and signal, the mobile phone in question was not a phone under its own exchange (
It is determined that it is another type 1 exchange KTC-1-1,
Class 2 exchange KTC-II-1 that manages its own exchange
A location registration signal of the mobile phone is sent to the mobile phone. The subscriber information storage section of the second type exchange that received this signal sends the PI to the white section.
D, +SID,, the subordinate type 1 exchange aKTC-1 that records the signal tQ and manages the home area of the mobile phone.
-1 is instructed to register the current position of PID+.

When the above operations are completed, the procedure is completed indicating that the mobile phone is in the second type roam area, and it is possible to make and receive calls.

The above explanation is that the roam area was changed while the mobile phone was on standby, but even during a call, the same location registration as above is performed, except that the control operation changes the call channel due to the change of the parent device. It turns out.

1ii) Call from Type 3 Roam Area Mr. A decided to drive his car one day to visit a friend living in Musashino City (Type 3 Roam Area). Since I rarely visit this friend's house, I was confused because I didn't know which house I was looking for, so I parked my car on the road and called my friend using my cell phone.
I decided to ask for directions.

First, when the power switch is turned on, a location registration request signal enters the subscriber information storage unit (location registration unit) of the first-class exchange (KTC-r-3) that manages this area through the process already described. It's here. Upon receiving this signal, the subscriber information storage unit investigated the PID+ signal of the mobile phone and recognized that the mobile phone had a home area in another city, and sent it to the stored Kamishiro switchboard (KTC-I-3). We requested the second class exchange (KTC-11-2) that we manage to register the PID and signal location. As a result, the subscriber information storage unit of the second type exchange memorizes the sent signal, and as a result of investigation, recognizes that it is a mobile phone whose home area is another city, Type 3 exchange 1ff, which is the upper level exchange that manages telephones)
These signals were transferred to KTC-I[l-1].

KTC-m-1, which received this signal, stores it in the subscriber information storage section of its own exchange and also stores the PIDI location registration in the second type and first type exchanges that manage the mobile phone. requested.

As already explained, it is clear that once the above conditions are completed, Mr. A's mobile phone will be able to make and receive calls to and from a phone located anywhere in Japan. As mentioned above, Mr. A called a friend at the place he was visiting and asked for directions, but it is not necessarily necessary to use this method. By making a request, you can achieve a similar goal without having to bother your friend.

iv) Calls made and received from Type 4 Roam Area One day, Mr. A decided to travel to the Takasaki region (Type 4 Roam Area) for business. I boarded the train carrying my mobile phone. I had no particular business to attend to in the car, but I left my cell phone turned on in case I received a call from my office. Then, 15 minutes before I got off at Takasaki Station, an incoming call signal rang on my cell phone. This means that each car on the train you ride is equipped with a mobile phone master device, and the mobile phone master device whose location has been registered is in a state where you can use your mobile phone in a way that is superimposed on the train radio system. by. In other words, when a passenger receives a call, the train radio base station sends an incoming call signal to the train Mr. A is boarding, and the train radio control unit checks Mr. A's location registration and determines the number of cars in the train. The mobile phone master device determines whether to call the mobile phone and sends an incoming call signal. The following operations are the same as for normal incoming calls. Depending on the type of train, there are cases where only one or two train public telephones are provided on the train. In this case, the incoming call signal is sent directly to the mobile phone packer from the fourth type base station for wide area calling of the mobile phone. A method is also used in which the owner of the mobile phone who receives this goes to the nearest public telephone, connects the mobile phone with a connection unit, and receives an incoming call.

Mr. A answered the call using the former method, then relieved himself and got off the train at Takasaki Station. Now, while I was walking on the road for a while, I felt the need to contact someone at my office in Musashinofu, so I turned on my cell phone.

Then, by the same process as already explained, each of the following 1
■Each subscriber information storage unit (location registration unit) of the exchange
Location registration has been completed.

■ First to third type exchanges that manage the roam area ■ First to fourth type exchanges that manage the home area After that, the mobile phone can make and receive calls.

After completing his errands in Takasaki, Mr. A decided to spend the weekend enjoying golf at a golf course in the region. This golf course is A
Mr. 1 is also a member and was asked to present his membership card or mobile phone at the reception desk, so he presented his mobile phone. By making a call between Mr. A's mobile phone and the mobile phone master device owned by the receptionist, the receptionist is able to verify the ID (GPID) of the golf club's membership card and confirm that Mr. A is a member. We were able to immediately confirm that this was the case.

Mr. A spent the weekend playing golf and returned home satisfied.

On another day, Mr. A traveled to a hot spring resort in Minami Kishu with his wife for a week. Mr. A and his wife each brought their favorite mobile phones with them, and they made great use of them when they went sightseeing in the region. Sunday of this week was voting day for the general election. Previously, if you were absent from your polling place on Election Day, you were required to vote absentee. This required a complicated procedure.

However, around 2000 AD, there was no need for such complicated absentee voting procedures, and voters were able to vote at any voting location nationwide on election day.

The power of the mobile phone of the present invention, which can make and receive calls anywhere in the country, has contributed greatly to this.In other words, as explained in the previous chapter, the mobile phone has the role of confirming the person's ID and serving as a voting paper. This is because it has become possible for voters to know their planned voting location and voting time in advance by the day before the election day.

Please register the PID of the mobile phone used for voting, 10 (Election 10) used only for elections, voice print and information about the person (place of birth, date of birth, 2 streets, family structure, etc.). On the day of the event, use your mobile phone to call your assigned voting location (management center) from the designated time and location.

Then, the management center confirms the PID and election ID.

In addition, we will check your voiceprint and ask you questions about your place of birth and date of birth (
If you pass these checks (automatic voice questions and response checks), your identity has been verified.
Move to voting operation. Mr. and Mrs. A successfully completed their absentee voting through this process. Note that the election ID used by Mr. and Mrs. A will automatically disappear upon completion of voting, and protective measures have been taken to make it impossible for a third party to vote using the mobile phone.

■) Calls made and received from Type 5 roam area Mr. A decided to travel to another 8 Hokkaido regions.

As an example, I carried a mobile phone with me, but by turning on the power, the location registration is completed in the subscriber information storage unit (location registration unit) of each of the following exchanges, and the mobile phone can make and receive calls. became.

■ Class 1 to 4 exchanges that manage the roam area ■ Class 1 to 5 exchanges that manage the home area vi) How to use mobile phones in wide area calling mode and use the location detection function Mr. A's son, Mr. B, is currently attending university, but Mr. A decided to go mountain climbing in the Japanese Alps with a friend during summer vacation, so Mr. A decided to bring a mobile phone to Mr. B.

Mr. B decided to carry his mobile phone, which he regularly uses, since it wouldn't be part of his luggage. And in advance KTC-
I had requested that V be called by satellite. I was away from home and traversing the Alps for a few days when my cell phone rang.

The tone of this ringing was different from the tone from the mobile phone master device and the mobile phone wide area call type 1 or type 4 base station, so this was the same as the tone from the mobile phone wide area call 5th type by satellite.
I could immediately identify that the call signal was from a different base station. When Mr. B looked at the display of the mobile phone, he saw the message ``Praying for your safety, Ando-bu'' and realized that it was a telegram of encouragement from Mr. Ando, who was studying at the same university as Mr. B. I felt 100 times more energetic and was able to descend the mountain safely.

One day, Mr. and Mrs. A went to an amusement park with their son, his wife, and their grandson Ren. This amusement park is very large, and it was expected that it would be difficult to contact each other if we got separated, so we each carried a mobile phone in preparation for this. Also, Sun Ren was given a mobile phone (powered on) instead of a lost child. Mr. A and his wife, their son and his wife, and their grandchild had different interests, so they were separated, but when the grandchild got lost, they were able to confirm the current location and immediately arrive at the scene, and also at mealtimes and on the way home. In addition, we were able to easily communicate with each other regarding the reunion location, etc., and had a very comfortable day.

vi) Omission of location registration storage operation for the mobile phone in the exchange that manages the roam area In the above explanation, in order to make it technically clear that the mobile phone according to the present invention can be used in the roam area, the roam area Although the explanation has been made on the premise that location registration is performed for the mobile telephone in the same manner as in the exchange managing the home area in the managing exchange, this is not necessarily necessary in practice. Instead, ■Every time a call is made from a mobile device, call information (billing information) is sent to the exchange (any of Types 1 to 5) that manages the home area.
need to be informed.

- Incoming calls from mobile devices Even if a call is received from an area near the roaming area, it becomes necessary to register the current location of the incoming call signal to the 5th to 1st type exchanges that manage the home area.

This results in disadvantages such as: (See Figures 11(a) to (gl)) Similarly to the above, if the exchange memory that manages the home area also stores the position information of mobile phones in the roam areas of multiple exchanges, the system will be affected even if omitted. Although it does not become inoperable, the operations described in (1) and (3) above are required.

vi) Functions of a landline phone that pairs with a mobile phone installed in the home area If a landline phone that pairs with a mobile phone is installed,
By obtaining the current location information of the mobile phone from the first type exchange location information memory section, it is possible to provide the following functions.

■If a mobile phone receives a call while it is registering its location in the roaming area, and the mobile phone does not respond within a certain period of time for some reason, the call will be terminated and the call will be sent to the landline phone in the home area. Perform incoming call forwarding. It is also possible to display the calling telephone number and the current registered location of the mobile phone.

■When the person owning the portable electronic packing machine returns to his or her desk, the status of calls made and received while the person was absent is read out and the recording of business matters is played back.

3.7 (Effects of the Invention) By applying the present invention to a mobile phone system, it is possible to achieve improvements that were considered technically and economically impossible in the past, such as inside a residence, a department store, a baseball field, or the premises of an event venue. The ability to make and receive calls at any time, anywhere, even while walking on the road, has a huge effect on making social life more convenient for the people. Further, by using the mobile phone for functions other than the telephone call function, for example, for personal identification (I[), credit functions, advanced functions such as IC cards, etc., it will bring great benefits to social life.

[Brief explanation of the drawing]

Figures 1 and 2 are configuration diagrams of the conventional system, and Figure 3 (a)
Figure 4 (al) is a block diagram of a mobile phone system in which the present invention is implemented in a house; ) and (C)
is a system configuration diagram when the present invention system is deployed on a nationwide scale,
5(d) and 5(e) are block diagrams for explaining a partial configuration of the system, FIG. 5(f) is a diagram showing the connection between the system of the present invention and another telephone network, and FIG. Signal formant diagram showing an example of assigning personal identification information (PID) according to the present invention, No. 7
Figure (a) is a diagram showing the flow of signals when making and receiving calls in the system of the present invention, and Figure 7 (inside) is a diagram showing the flow of signals when receiving calls in a different state, Figures 8 (a) fb). (C) and (d)
9 is a diagram showing an example of a system configuration used in the present invention, FIG. 9 is a diagram showing another system configuration example used in this system, and FIG. 10 is a diagram showing a call signal flow in another state used in this system. Schematic diagrams, Figures 11(a) to (Figures 11(a) to 11(b) are diagrams showing the operational flow during location registration used in the present invention, and Figures 12(al) and (b) are blocks applied to a mobile terminal of another system used in the present invention. This is a diagram. Voice 5 flash (d) Todoroki becho. Door 7 diagram (0) Cuff flash (b) ■ I "-8 flash (b) KTC-m room 111 ¥η I 117″A・ 111111 diagram (C
)■ Figure C11 (C)■

Claims (2)

[Claims] (1) A plurality of type I exchanges accommodating each parent device of a plurality of mobile phones existing within a unit service area, and at least one type I exchange accommodating a plurality of the type I exchanges via trunk lines. i+type 1 exchange and i=1, 2, 3,...
The switching system is configured such that the i+1 type exchange covers the entire service area with a hierarchical arrangement such that the home area where each of the plurality of mobile phones is normally located and each mobile phone are In a mobile phone system that has a function of registering designated information that is assigned so as to be distinguished from each other in the type i and type i+1 exchanges that manage the home area, as self-identification information of the plurality of mobile phones. Self-identification information is included in the I-type exchange and I-1 type exchange, respectively, and when the calling party is located in the area managed by the I-type exchange, the multiple mobile phone By dialing only the self-identification information given to the exchange located in class i or below as the self-identification information of the mobile phone that is the called party among the telephones, the calling party and the called party can be connected. A mobile phone system characterized in that it is configured such that a communication path between the two is set up. (2) A plurality of type I exchanges accommodating each parent device of a plurality of mobile phones existing within a unit service area, and at least one type I exchange accommodating a plurality of said type I exchanges via trunk lines. i+type 1 exchange and i=1, 2, 3,...
The switching system is configured such that the i+1 type exchange covers the entire service area in a hierarchical arrangement such that the home area where each of the plurality of mobile phones is normally located and each mobile phone A mobile phone system having a function of registering specified information assigned to distinguish between the mobile phones in the I-th and i+1-th type exchanges that manage the home area and the service area in which the mobile phone is currently located. In this case, the self-identification information given to each of the type I exchange and i-1 type exchange is included as the self-identification information of the plurality of mobile phones, and when the mobile phone calls out to the area managed by the type I exchange, When the calling party is located, by dialing only the self-identification information given to the exchange located in the class i or lower hierarchy as the self-identification information of the mobile telephone that is the called party among the plurality of mobile telephones. . A mobile telephone system, characterized in that a communication path is established between the calling party and the called party.