JPH08228371A - Communication method and system for mobile communication capable of integrating plural mobile communications - Google Patents

Abstract

PURPOSE: To improve the convenience to receive the service even on the outside of a conventional service area on the condition that a radio base station exists by adding and changing the functions of a mobile radio machine and providing an integrated radio station which controls radio control stations of two radio systems in common. CONSTITUTION: When an integrated mobile radio machine 100T starts operation, it receives the control signal sent from the nearest radio base station 30A. As the result, the integrated mobile radio machine 100T exists in the service area of a mobile radio system A. If the integrated mobile radio machine 100T is hung up in this state, a call control signal is transmitted from the radio transmission part to the nearest radio base station 30A. This signal is analyzed in the radio base station 30A to confirm ID of the integrated mobile radio machine 100T. Since the system to which the integrated mobile radio machine 100T belongs is recognized in this manner, the call signal is transferred to an integrated radio control station 200.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to wireless communication systems, and more particularly to the integration of public mobile communication systems. In detail, there are a plurality of mobile communication systems, and the radio bases that belong to the mobile communication systems that should be integrated into a mobile radio telephone (hereinafter referred to as a mobile radio device) in order to integrate them and operate as one mobile communication system. The present invention relates to a system configuration and a communication method that add a function for enabling communication with a station to face each other and enable communication with a telephone in these wireless communication systems or in a fixed telephone network.

[0002]

2. Description of the Related Art It is no exaggeration to say that the application of a wireless communication system, in particular the application of mobile wireless communication or the serviceability and economy are largely dependent on the frequency band used in the system. That is, when the frequency band permitted to be used is determined, the system design is determined from the application, serviceability, and economical efficiency, and various characteristics required for each device for wireless communication have been designed to satisfy these. That is, the transmission frequency of the radio base station or the transmission frequency of the mobile radio device is designed so that a radio signal having a predetermined frequency is output. In detail, the signal format of the transmission signal, the modulation method of the signal, and the transmission of the radio signal are output with a predetermined transmission power within a predetermined frequency and frequency band. On the other hand, the reception signal of the radio base station, that is, the transmission signal from the mobile radio device is created in the same manner as from the radio base station, is received by the antenna of the radio base station, and the radio signal is created and transmitted by the transmitter side. The original telephone signal is extracted using the reverse method. In addition, the communication method with the mobile wireless device that communicates facing these wireless base stations is defined by each system, and when connected to a general public telephone network,
It is connected and controlled by the exchange / radio control station that forms the interface, and communication between the mobile radio and a telephone accommodated in the telephone network becomes possible.

In a mobile radio system, a usable area of a mobile radio housed in the system is called a service area. This service area is set for each system, and a certain mobile radio system is provided. It is impossible to communicate with a radio base station of another mobile radio system at a place where the mobile radio belonging to the system is outside the service area but within the service area of another mobile radio system. However, adding functions to the mobile radio,
There are already examples in foreign countries that enable communication with a radio base station belonging to a mobile radio system other than the system to which the system belongs, which will be described later.

A conventional embodiment will be described below with reference to FIG. FIG. 19 shows a system configuration diagram in which a plurality of (two in the figure) conventional mobile communication systems are connected to the telephone network 10. In FIG. 19, a first mobile communication system (hereinafter referred to as system A) is an automobile / mobile phone, and a plurality of mobile wireless devices (1
00A-1), (100A-2), ..., (100A
-N) wirelessly communicates with the wireless base station (10A) and is connected to the wireless base station (10A).
It is a figure connected to the telephone network (10) via. Next, a second mobile communication system (hereinafter referred to as system B) is a digital cordless telephone, and a plurality of mobile wireless devices (100B) are used by using a certain radio frequency, specifically, 1.9 GHz band.
-1), (100B-2), ..., (100B-m)
Shows a case of wirelessly communicating with the wireless base station (30B) and being connected to the telephone network (10) via a wireless control station (20B) connected to the wireless base station (30B). The mobile radios (100A-1), (100A-
2), ..., (100A-n) have the same functions and configurations except for the identification information (ID), so that the mobile radio (100A-
1), (100A-2), ..., (100A-n) are sometimes simply referred to as a mobile wireless device (100A). Similarly, mobile radios (100B-1), (100B
-2), ..., (100B-m) are sometimes simply referred to as a mobile wireless device (100B).

The communication operation relating to the system A will be mainly described below, but the system B also has the same function, and the same communication as the system A is possible. However, the frequency used for communication, the signal format, the signal modulation method, and the communication control method are generally different from those of the system A, but the interconnection between the system A and the system B will be described in detail later. Now, the system operation when the mobile wireless device (100A-1) belonging to the system A makes a call to the mobile wireless device (100A-2) belonging to the same system or a telephone included in the telephone network 10 has already been performed. It is possible with the defined system operation. Similarly, system B
The system operation when the mobile wireless device (100B-1) belonging to the same makes a mobile wireless device (100B-2) belonging to the same system or a telephone included in the telephone network 10 is already defined. It is possible in system operation. In addition, a mobile wireless device (100A-
1) and a mobile wireless device belonging to system B (100B-
Mutual calls to and from 1) can be made by the method described later.

The system operation of the conventional embodiment will be described with reference to FIGS. FIG. 20 shows a circuit configuration of a mobile wireless device 100A which communicates with a conventionally used wireless base station 30A of a system A. FIG.
Received signals such as call signals (including telephone, fax, and data) received by the antenna unit at the left end and control signals enter the wireless reception circuit 135A including the reception mixer 136A and the detection circuit 137A and are detected. Among the outputs, the control signal and the timing signal are sent to the control unit 140A, and the call signal is sent to the decoding circuit 139A. The former control signal is used for control and timing of the operation of each part of the mobile wireless device 100A. That is, the control signal or the like sent to the control unit 140A is used to exert various control functions of the control unit 140A. The timing signal output by the control unit 140A is the synthesizer 121-1A and 12-1.
1-2A, decoding circuit 139A, encoding circuit 15
2A, decoder 138A, coder 151A, etc. are used for timing.

On the other hand, the speech signal input to the latter decoding circuit 139A is sent to the decoder 138A after the timing and the like contained in the signal are adjusted (deframing). In the decoder 138A, after correcting the error code and the like from the transmitted signal, digital-analog conversion is performed and a call signal is transmitted to the handset of the telephone unit 101A. The reference crystal oscillator 120A generates a stable frequency and supplies it to the synthesizers 121-1A and 121-2A. The frequency output from the synthesizer 121-1A or 121-2A is in accordance with the value instructed by the control unit 140A, and the reception mixer 136A and the transmission mixer 133 are included.
Supplied to A. Now, the call signal from the transmitter of the telephone unit 101A is sent to the coder 151A. Coder 151
At A, signals for analog-digital conversion and error correction are added and sent to the coding circuit 152A. Encoding circuit 1
In 52A, the timing and the like of the digital signal are adjusted (framing) by the control signal and timing from the control unit 140A, and after the control signal and the like are added, the transmission mixer 1
Radio transmission circuit 132A including 33A and modulation circuit 134A
Sent to. Then, in the modulation circuit 134A, the signal is first converted into a high frequency, and then in the transmission mixer 133A, it is mixed with the frequency of the synthesizer 121-2A, becomes a prescribed frequency, is sent to the antenna section, and is transmitted to the radio base station 30A. Ru

FIG. 21 shows a conventional system A.
3 shows the configuration of the wireless base station 30A. The n-channel call signals 22-1 to 22-n included in the telephone (call) line 22 with the radio control station 20A shown in FIG. 19 are connected to the signal processing unit 31A that forms an interface with the transmission path. It Therefore, the call signals 22-1 to 22-n sent from the radio control station 20A are input to the signal processing unit 31A of the radio base station 30A. The signal processing unit 31A is provided with an amplifier or the like for compensating the transmission loss, and after being leveled up, it is sent to the coder 51A. Coder 51A
, Coders 51-1A, 51-2A, ..., 51-
nA, etc. are included, and an error correction signal is added after the operation of removing the echo generated between each coder 51A and the radio control station 20A in advance corresponding to the telephone channel and after performing the analog-digital conversion. Encoding circuit 52-
It is sent to the encoding circuit group 52A including 1A, 52-2A, ..., 52-nA. In the operation of the encoding circuit 52A, the work of framing the input signal group is performed. That is, a position to be placed in the frame is determined after a control signal or the like is added for each telephone channel.

The time-multiplexed signal which has been framed by the above processing is sent to a radio transmission circuit 32A including a transmission mixer and a modulation circuit. In the wireless transmission circuit 32A, after a control signal (such as frame correspondence) related to the entire system from the control unit 40A is added, it is converted to a prescribed frequency and sent to the antenna unit, and addressed to each mobile wireless device 100A. Sent. The clock generator 4 is provided in the radio base station 30A.
1A and a timing generation circuit 42A are provided to generate a clock and a timing, respectively, and control unit 40A, coder 51A, encoding circuit 52A, decoder 3
8A, the decoding circuit 39A, etc. Now, the call signal and the control signal transmitted from the mobile wireless device 100A are received by the antenna section and guided to the wireless receiving circuit 35A. The wireless receiving circuit 35A has the same function as the wireless receiving circuit 135A of the mobile wireless device 100A, and the modulated wave is detected after the frequency of the received signal is converted and amplified. The detected signal is divided into a call signal and a control signal. The control signal is input to the control unit 40A and the call signal is input to the decoding circuit 39A. The former control signal is used by the radio base station 30.
Although it is used for controlling the operation of each unit of A, some control signals are sent to the radio control station 20A via the signal processing unit 31A.
On the other hand, the call signal input to the decoding circuit 39A is adjusted in the timing included in the signal (deframing).
After being processed, it is sent to the decoder group 38A. Decoder group 38
In A, an erroneous code or the like is carried out from the signal sent, and then the signal is sent to the signal processing unit 31A. The signal processing unit 31A multiplexes it with another call signal and sends it to the radio control station 20A.

Of the signals sent from the radio base station 30A, the control signals are used for the control operation of each part of the radio control station 20A, but some of the control signals are processed into signals and then the callee is called. Is a telephone included in the telephone network 10, the telephone network 10 is addressed, and if the mobile wireless system is another mobile wireless device within the mobile wireless system managed by the wireless control station 20A, the wireless base station in which the mobile wireless device is located is addressed. Sent to. Similarly, if the call destination is a telephone whose destination is included in the telephone network 10, the telephone signal is transferred to the telephone network 10, and if it is another mobile wireless device in the mobile wireless system managed by the wireless control station 20A, the mobile signal is moved. It is transmitted to the wireless base station in which the wireless device is located.

On the other hand, the radio control station 20A is the radio base station 30.
It is connected to A via a transmission line. The role of the radio control station 20A is to identify the identification information of the mobile radio 100A, decode the incoming and outgoing call control signal, store the current position of the mobile radio, and interface the mobile radio network and the telephone network. That is, an incoming / outgoing call between the telephone in the telephone network 10 and the mobile radio 100A is executed via the radio control station 20A, or the radio control station 20A
The originating and receiving calls are executed between the mobile radios in the mobile radio system managed by A. More specifically, of the signals sent from the radio base station 30A, the control signals are used for the control operation of each part of the radio control station 20A, but some of the control signals are sent to the telephone network 10 by the called party. If it is a telephone included, it is transmitted to the telephone network 10, if it is another mobile radio in the mobile radio system managed by the radio control station 20A, it is transmitted to the radio base station in which the mobile radio is located. Similarly, if the call destination is a telephone whose destination is included in the telephone network 10, the telephone signal is transferred to the telephone network 10, and if it is another mobile wireless device in the mobile wireless system managed by the wireless control station 20A, the mobile signal is moved. It is transmitted to the wireless base station in which the wireless device is located. The function in the radio control station 20B of FIG. 19 is also the same.

Further, the operation of calling from the mobile wireless device (100A-1) belonging to system A to the mobile wireless device (100B-1) belonging to system B will be described. First, the call signal from the mobile wireless device (100A-1) is transmitted to the wireless base station 3
It is sent to the radio control station 20A via 0A. The radio control station 20A decodes the signal sent from the radio base station 30A, recognizes that it is a call signal from the mobile radio device (100A-1) to the mobile radio device (100B-1), and makes a call. The signal is transmitted to the telephone network 10.

This signal enters a storage unit of an exchange (not shown) included in the telephone network 10, and the incoming mobile radio (10)
Search for the identification number of 0B-1). As a result, when it is found that the mobile wireless device (100B-1) belongs to the system B, an incoming call signal is transmitted to the wireless control station (20B). Upon receiving this signal, the radio control station (20B) confirms the location of the mobile radio device (100B-1) and transmits an incoming call signal to the mobile radio device 100B to the radio base station (30B-1) in the vicinity thereof. Request to do so. The radio base station (30B-1) that has received the incoming call signal transmits the incoming call signal to the mobile wireless device (100B-1) within its own service area. When the mobile wireless device (100B-1) receives this signal and the user lifts the handset, communication is started. By the operation of each function as described above, communication from the mobile wireless device (100A-1) belonging to the system A to another mobile wireless device 100 belonging to the same system, or communication with a telephone included in the telephone network 10 is performed. It will be possible. An example of the system integration in the United States will be described below. It is a system integration of 900MHz band analog mobile phone / mobile phone and 900MHz band digital mobile phone / mobile phone (called a dual system). In this case, the frequency band is the same (however, the allocated frequency band on the radio license is the allocatable band). Out of
It is given to the vendor separately for digital and analog, and it is never allocated so that the same frequency band is used together in the same area.) Moreover, system integration operated by the same vendor The wireless transmission power and control method are exactly the same. In this case integration is easy,

A description will be given below with reference to the drawings. FIG. 22 shows the configuration of a mobile wireless device used as a dual system. The radio signal coming from the left antenna is input to the switch unit 1. The switch unit 1 is configured to interlock with the switch unit 2, and when an incoming signal from the antenna is in analog format, it is input to the analog signal transmitting / receiving unit in the upper part of the figure. This output is then input to the telephone unit, and a voice signal is sent from the handset to the caller. On the other hand, the voice signal from the caller is sent from the transmitter of the telephone unit to the switch unit 2 and input to the analog signal transmitting / receiving unit. Then, this output is sent to the antenna section through the switch section 1 and is transmitted from the antenna to the other party's wireless base station. When the input to the dual system mobile radio shown in FIG. 22 is in digital format, it is input to the digital signal transmitting / receiving section at the bottom of the figure, and the following operations are processed in the same manner as in the case of analog format above. Also, to determine whether the transmitted signal can be in the analog format or the digital format, once the switch section 1 and the switch section 2 are set to the analog signal receiving state, and if the signal is well received, that is ok. It seems that they are using manpower to change the switch to the digital signal receiving state (although it is also possible to select automatically most). By using the dual system mobile radio described above, the same mobile radio can be used in both digital and analog mobile / car phone systems in the same frequency band and in any service area where the service area is divided into two. Yes, convenience has been improved. However, this system is only for system sharing within the same frequency band and within the same telecommunications carrier, and there was a point in which the technical content was significantly different from the full-scale system sharing described below.

[0015]

In the above cases, the usage conditions are satisfied in each case, but in the following cases where the conditions are not satisfied, the call cannot be made. It is an incoming / outgoing call from outside the service area of the mobile radio system. Specifically, it is a mobile / car phone system (800
This is a call from a deep inside a large-scale building with a mobile radio belonging to the (MHz band). At present, the large-scale building is not yet a service area for digital cordless telephones or PHS (personal handy system, 1.9 GHz band), but rapid development is expected soon and the large-scale building will be widely used. It seems that the service area will be expanded. On the other hand, the mobile / car phone system is usually out of the service area inside a large building, so it is not possible to make or receive calls from there. Therefore, from the user's point of view, in order to receive an incoming / outgoing call service from most places in a large city such as in a car, on a street or in a large building, a mobile terminal for a mobile / car phone system and a digital cordless You must carry a telephone or a mobile terminal for PHS at the same time. This is very annoying to the user. In addition, in order to eliminate the inconvenience of users carrying two terminals, attempting to make a large-scale building a service area for a mobile / car phone system will cause problems with the system's economic efficiency and frequency efficiency. Even if it is used, it is not efficient. The fact that similar mobile radio systems coexist in the same service area itself impairs system economy compared to a single system, and call control operations are performed separately from the viewpoint of frequency efficiency. It can be said that the effective utilization itself is being reduced.

For example, the following mobile radio systems will be described. The following four systems: Analog cordless telephone (250 / 400MHz
Obi) Mobile / car phone (800MHz band) Digital mobile / car phone (1,500MHz band) Digital cordless phone system or PHS
(Personal Handy Horn System, 1, 9 for each
The question is whether a mobile radio belonging to any one of the mobile radio systems such as the 00 MHz band) can be used in other radio systems.

To be more specific, it is assumed that the mobile radio belonging to is walking deep inside a large building. Since the system is usually outside the service area inside a large building, it is not possible to make or receive calls from there. On the other hand, it is expected that the system will expand in the future, and in the long term, the large building will be within the service area,
Of course, the mobile wireless device belonging to can make and receive calls from there. So the question is whether the mobile radio belonging to can technically access a system that is walking deep inside a large building. Also, the system will also be a service area on the streets of downtown. In this case, the call traffic in the service area of the downtown area of the system may be congested for some reason, making it impossible to make and receive calls.
At this time, if it becomes possible to access the system including the mobile wireless device belonging to the group, it becomes a measure against traffic congestion and the serviceability to the user is greatly improved. However, it is currently impossible for mobile radios belonging to either of the above two cases to access the system.

Conversely, the digital cordless telephone (1,
There is a problem that it is possible to operate a mobile / mobile phone (800 MHz band) mobile wireless device with a 900 MHz band mobile wireless device. In other words, a person carrying a digital cordless telephone can get into a car and make a call from a car moving at high speed. In this case, the area in which the vehicle is traveling would be within the service area of a normal mobile / car phone system. However, although the system is also a service area on the streets of the downtown area, it may not be considered to provide a service to a mobile wireless device that moves at high speed. Alternatively, the suburban system would have little consideration for outdoor services. Therefore, it is impossible at present for mobile radios belonging to either of the above two cases to access the system.

While the above was an example of a problem that occurred between two systems, four systems, and between
~ There are various other combinations of systems, and the same problem as described above occurs for each of them. This is technically a problem caused by the fact that mobile radios of different systems access other systems, that is, system integration is not performed.

[0020]

There are two radio systems that use different radio frequency bands, and the radio base stations and radio control stations included in these systems are not changed at all, and mobile radio equipment is used. By adding / changing the functions of the mobile radio and adding an integrated radio control station that controls the radio control stations of two radio systems in common, the mobile radio can transmit even in areas where the conventional mobile radio could not be used. We have realized a method that enables communication depending on the wireless output capability. That is, in a mobile wireless device that enables system integration (hereinafter, integrated mobile wireless device), it is possible to transmit and receive signals in two different radio frequency bands, analyze signals included in the signals, and analyze each signal. A control function is provided to determine which radio base station of the radio system to communicate with. By providing the above-mentioned function, it becomes possible to access the wireless base station even in the vicinity of the wireless base station belonging to another system which has been incapable of communication from the viewpoint of the mobile wireless device. In other words, even if the wireless base station of the wireless system to be integrated exists, it is possible to receive the service even outside the service area that has been provided so far.

[0021]

There are multiple wireless systems, one of which is the above-mentioned digital mobile phone / car phone (1,500 MHz).
Obi), the other one is the above digital cordless telephone (P
The operation of a single wireless system in which these two systems are integrated according to the present invention will be described, assuming that the system includes the HS system (1,900 MHz band). In this integrated wireless system, it is assumed that the wireless device configuration and the software configuration as described above are configured.

Now, it is assumed that the mobile wireless device belonging to the former system is initially moving near a window in a large-scale building and is on standby (power-on). Hereafter, the incoming and outgoing call operation of the mobile radio,
The operation accompanying movement during communication will be described separately inside and outside the service area of the original system. First, when the call origination / receipt operation of the mobile radio device is performed within the service area of the original system, it is performed as usual, so that it is not necessary to newly describe. However, even in this case, if the call traffic of the original system is congested for some reason and it is not possible to make and receive calls, if it is within the service area of the system, Will be done. This is similar to the case described below.

Next, of the cases where the call originating / receiving operation of the mobile radio device is performed outside the original system service area, the call originating operation will be described first. This is a case where the mobile radio moves from the vicinity of a window in a large-scale building to a deep inside due to the movement. In this case, the control signal transmitted from the radio base station (30A) of the system causes a large attenuation. I have received it, but the mobile radio cannot receive it. In the system-integrated mobile wireless device, in this case, the reception frequency is changed to receive the control signal transmitted from the wireless base station belonging to the switching system. As a result, the mobile radio recognizes that the system can make a call. The calling signal is received by the inorganic base station belonging to the nearest system. That is, although the inorganic base station belonging to the system is a mobile wireless device belonging to the system, it is performing a calling operation according to the system, and these received signals are transmitted to the radio control station. In the integrated radio control station that receives this signal, the ID of the calling mobile radio device,
The calling information such as the telephone number of the calling destination is decoded and the calling information is transferred to the inorganic base station belonging to the telephone network or system according to the decoding. The following operation is the original operation of the system and the calling operation proceeds. next,
The incoming call operation to the mobile wireless device belonging to the system is executed as follows. It is assumed that there is an incoming call from a telephone in the telephone network or the like to a system-integrated mobile wireless device. Upon receiving this signal, the integrated wireless control station recognizes that it is an integrated mobile wireless device based on the ID of the called mobile wireless device, and as a result of its position confirmation, determines the wireless base station to communicate with oppositely. On the other hand, the called mobile wireless device is receiving a control signal sent from an inorganic base station belonging to a system or
By recognizing the incoming call signal for the mobile radio device in the control signal, incoming call can be made. Furthermore, even if the mobile wireless device belonging to the system moves out of the service area of the original system during a call, the inorganic base station belonging to the system will act as a substitute for the inorganic base station belonging to the system. Sustainability is possible.

Inversely, a mobile radio device belonging to the system opposite to the above can similarly perform an incoming / outgoing call operation performed by getting into a car or the like moving at high speed. In this case, however, the radio transmission power of the mobile radio device is included. There are some restrictions, etc., so it is necessary to pay attention to the system configuration. This will be described in the examples below.

[0025]

The details of the present invention will be described below with reference to several embodiments. The method of integrating a mobile communication system to which the present invention is applied differs depending on the frequency band used, the bandwidth, the signal format, the signal modulation method, and the communication control method used in the integrated mobile communication system. , Each representative method is explained. If the radio frequencies are different, but the system configurations and operating methods of other systems can be regarded as the same, when the systems are arranged in order from the case of easy system integration. b Radio frequency and system configuration / operation method are slightly different, but if one part of mobile radio configuration is changed and other parts can be used in common c Radio frequency and system configuration / operation method are considerably different , If one part of the mobile radio configuration can be used in common, but many other parts must be installed independently. In addition, the integrated radio control station required for the integrated system is required in any case. The function to be provided will be described later.

The example belonging to a is a case where the frequency bands are different but the radio transmission power, the signal format, and the control method are almost the same. The example belonging to b is the case where the system integration of the 800 MHz band digital mobile phone of the company A or the 1.5 GHz band digital mobile phone and the 1.9 GHz band digital cordless phone of another company or the PHS system is attempted. In this case, the signal format is almost the same (digital)
However, in addition to different radio transmission power, the former control method is centralized control, while the latter is different in that it uses distributed control. 800MH of company A is an example belonging to c
This is a case where the system integration of a z-band analog mobile phone and a 1.9 GHz band digital cordless phone of another company or a PHS system is attempted. In this case, the signal format and control method are different, and considerable consideration must be taken in system integration.

The application of the present invention to a to c will be sequentially described below. First, as case a, 800 within the same company
When trying to integrate the system between the MHz band digital mobile phone / car phone and the 1.5 GHz band digital mobile phone / car phone, or the 800 MHz band digital mobile phone / car phone of company B and the 1.5 GHz band digital mobile phone / car phone of company A The case of system integration with 1 and 2 show the integrated system configuration. In both figures, the wireless base stations (30A-1), (30A-2), ... Have the same configuration as the wireless base stations of the system to which they originally belonged. Similarly, the wireless base stations (30B-1) and (30B-
2), ... Also have the same configuration as the wireless base station of the system to which they originally belonged, and the configuration has substantially the same configuration and function as in FIG. 19 (not shown). 1 is different from FIG. 2 in that the former eliminates the radio control station 20A and the radio control station 20, and replaces this with the general radio control station 200.
On the other hand, the latter has a radio control station 20A and a radio control station 20 having exactly the same functions as the conventional one, and additionally has a new integrated radio control station 200A.

However, as will be described later, the general radio control station 200 has a function including the conventional radio control station 20A and the radio control station 20, and FIGS. 1 and 2 show the physical location of the installation place. Apart from the distance, the system functions can be said to be exactly the same. However, the construction cost of the integrated system will be decided by the system cost and ease of maintenance. The radio base station (30
A-1), (30A-2), ... Are simply abbreviated as a radio base station (30A) unless there is a particular need to identify them. Similarly, the wireless base stations (30B-1) and (30B-
2), ... Are also abbreviated as wireless base stations (30B). Although the configuration and functions of the telephone network 10 are the same as those in FIG. 19, the storage unit of the above-mentioned exchange (not shown) has an integrated wireless control station 2 described later.
There are changes such as a new installation (not shown) in 00.
In addition, in the integrated system configuration diagram shown in FIG. 1 and FIG. 2, mobile wireless devices (100A, 100B), which are not shown but belong to each system before system integration, also exist, and communication to these is also well performed. It goes without saying that it has to be done.

Next, the mobile radio (100
T-1, 100T-2, ..., 100T-8, etc., which may be represented as 100T as a representative). To implement this concretely, the following functions and configurations are required. The mobile wireless device must have a combined function of the mobile wireless device (100A) and the mobile wireless device (100B) of FIG. As a result, the mobile radio (100
A) or an integrated mobile radio (100T) with one incoming and outgoing call from both mobile radios (100B)
It is possible from The operating integrated mobile radio must always be able to communicate with the radio base stations of both systems. That is, the mobile wireless device (100A) and the mobile wireless device (1
00B) must be simultaneously shown to the radio base stations of both systems. It is not impossible to show this at the same time by the method described later, but in terms of system cost and the weight and shape of the mobile radio, a method that can be technically regarded as almost the same is adopted. The above consideration will be made. 3 to 10 described below show the configuration of a mobile wireless device (100T) that enables integration. The reason why they are divided into these many types is that the configuration of the integrated mobile radio device differs depending on the type of system.

First, the integrated mobile radio (1
00T) have the following points in common. (1) The antenna, antenna feed system, and bandpass filter must be able to transmit and receive the frequency used by each system. It should be noted that these circuits are a to C if the design is taken into consideration.
A single bandpass filter can be used in common in any system integration. (2) The integrated control unit 140 has a control function for system sharing and a control function unique to each system. That is,
Since the integrated control unit 140 integrates the mobile wireless devices, the integrated control unit 140 has both the control functions not provided in the conventional mobile wireless devices and the functions of the control unit 140A or the control unit 140B that each system conventionally has. Mean a thing. Specifically, it has the following functions by making full use of the circuits provided in the mobile wireless device shown in FIGS. Function to receive control signals transmitted from the radio base stations of both systems at the same time or in time division Function to transmit control signals from own station at the same time or in time division to the radio base stations of both systems Opposite After the wireless base station (belonging to one system) to communicate with is determined, the communication is executed according to the control method peculiar to the system to which it belongs. A function to switch to communication with a wireless base station belonging to another system when the wireless base station (belonging to one system) that communicates oppositely becomes unable to communicate due to a service area boundary line over.

The configuration and function of the integrated mobile radio device will be sequentially described below in the order of easy system integration and easy design of the integrated mobile radio device. As an example of a system that can be easily integrated (case a described above), the configuration of the integrated mobile wireless device (100T) shown in FIGS. 3 to 5 can be considered. FIG. 3 shows an example in which a transmission / reception circuit and a synthesizer are arranged for each system.
A, radio receiving circuit 135A and synthesizer 121A
-1, System A before integration by synthesizer 121A-2 (for transmitting and receiving 800 MHz band digital signals, for example)
Wireless communication circuit 132B, wireless reception circuit 1
35B and synthesizer 121B-1 and synthesizer 121B-2 before integration of system B (1.5 GHz
It is a method of performing communication (for transmission and reception of band digital signals).
Which of the system A and the system B is selected depends on the instruction of the integrated control unit 140. The output signal of the telephone unit 101 passes through the coder 151 and the encoding circuit 152 and is input to the wireless transmission circuit 132A or the wireless transmission circuit 135B. On the other hand, the output signal of the wireless reception circuit 135A or the wireless reception circuit 135B is input to the telephone unit 101 through the decoding circuit 139 and the decoder 138.

The signal flow will be described below. Radio base station 3
The radio signal sent from 0A is integrated mobile radio (10
0T-1) is received by the antenna unit and the wireless reception circuit 13
Input to 5A. The wireless reception circuit 135A includes a reception mixer 136A, and the reception signal is used by the integrated control unit 1
Synthesizer 1 for outputting the local oscillation frequency according to the instruction of 40
21A-1 output. As a result, after the input signal converted to the intermediate frequency is amplified to an appropriate level,
It is detected by the detection circuit 137A. This output is input to the telephone section 101 through the decoding circuit 139 and the decoder 138 described above. On the other hand, the output from the telephone unit 101 passes through the coder 151 and the encoding circuit 152 and is transmitted to the wireless transmission circuit 132.
Input to A. The modulation circuit 1 is included in the wireless transmission circuit 132A.
37A, the signal is modulated into an intermediate frequency band signal and then mixed with the output of the synthesizer 121A-2 which outputs the local oscillation frequency according to the instruction of the integrated control unit 140. As a result, the signal converted into the high frequency band signal is transmitted from the antenna section to the radio base station 30A that communicates oppositely. Also, when the wireless base station that communicates with the integrated mobile wireless device (100T-1) is 30B (in the case of communication in the system B before integration), the same operation as described above is performed, but the circuit used is Is, for example, the wireless reception circuit 135
Instead of A, the wireless reception circuit 135B is replaced by the wireless transmission circuit 1
The radio transmission circuit 132B is used instead of 32A. The integrated mobile radio (100T-
In 1), since the system is equipped with the wireless transmission / reception circuit, it is possible to communicate with the wireless base station 30A and the wireless base station 30B of the two systems at the same time by constantly operating these circuits. Such a configuration has the following advantages as compared with FIG. 4 described below. That is, it is possible to obtain the frequency diversity effect by utilizing the point that the two base stations 30A and 30B can communicate with each other at the same time.

Next, improve the function of the synthesizer,
If only one transmission / reception mixer unit can receive radio signals of different system frequencies, the integrated mobile radio device (100T-2) having the configuration of FIG. 4 can be realized. That is, FIG. 4 shows that the integrated mobile wireless device is configured by a pair of the wireless transmission circuit 132 and the wireless reception circuit 135. In the above example, the circuits before the encoding circuit 152 or the circuits after the decoding circuit 139 are commonly used are
This is because the systems before integration are very similar. Figure 5
The configuration of the integrated mobile wireless device (100T-3) in which the synthesizer and the wireless transmission / reception circuit are further improved in function to enable communication of both systems before system integration with one wireless transmission circuit 132 or wireless reception circuit 135. Indicates. In the configuration shown in the figure, if the frequency bands to be used are the same when the systems are integrated, the integrated mobile radio transmits and receives all the frequency bands that can be allocated to the two systems when the systems are integrated, among the frequency bands that can be allocated on the radio license. Since it is sufficient, it is possible to take the configuration shown in this figure without needing to upgrade the function. Also, in this case,
Antennas, antenna feed systems and bandpass filters will require little modification. Further, the configuration of the synthesizer capable of transmitting and receiving the used frequency of the integrated system hardly needs to be changed, and other coding / decoding circuits, coders, etc. need not be changed at all, and it will be economically performed. The integrated mobile radio (100T-2, 100T-
In 3), since the radio transmission / reception circuit is not provided for the system, the radio base station 3 of the two systems as shown in FIG.
It is impossible to communicate with 0A and the radio base station 30B at the same time. However, the wireless transceiver circuit is time-divided into 2
Since it becomes possible to communicate with the radio base stations 30A to 30B of one system, it does not cause a big trouble. Although it depends on the application, it is presumed that the merit of circuit simplification may be great.

Next, as an example in which system integration is somewhat difficult (case b above), the configurations shown in FIGS. 6 and 7 can be considered. FIG. 6 shows the configuration of the integrated mobile wireless device (100T-4). In the figure, the coding and decoding methods are different and cannot be used in common, and the coding circuits 152A and 152B,
The decoding circuits 139A and 139B are installed corresponding to the system. The configuration of the integrated mobile wireless device (100T-5) is shown in FIG.
Shown in Contrary to FIG. 6, the configuration of FIG. 7 can be shared by the encoding / decoding method, but the encoding / decoding method is different and the encoding / decoding method cannot be commonly used.
51B and decoders 138A and 138B are installed corresponding to the system. The signal flow is almost the same as above. Further, as an example in which system integration is difficult (case of the above c), the configurations of FIGS. 8, 9 and 10 can be considered. It is a figure which respectively shows the structure of an integrated mobile radio (100T-6) or an integrated mobile radio (100T-8). FIG.
In this configuration, although the configuration of the high frequency radio unit is the same as that of FIG. 4, it is a case where the encoding / decoding method and the coder / decoder method are different and cannot be used in common. Further, in such a system integration, the control method is considerably different from the centralized control and the decentralized control, and the integrated control unit 140 needs to be considerably enhanced. FIG. 9 is an example in which the wireless high frequency unit has the configuration as shown in FIG. This is because the modulation and demodulation methods of the system to be integrated are digital TDMA and CDM.
A This is a case where there is a great difference between digital TDMA or CDMA and analog. However, in the case of (3), it is natural that a suitable method should be adopted in the case of an analog code decoding circuit. The configuration of FIG. 10 is a case where the coder 151 and the decoder 138 can be commonly used.

FIG. 11 is a diagram showing the functions of the integrated radio control station 200 of FIG. 20, which will be described below. Control unit 211A
The wireless control station 20A and the control unit 211B in FIG.
It has the same function as the wireless control station 20B. The common control unit 210 has the following functions. (A) It has an interface between the telephone network 10 and the radio base station 30A or the radio base station 30B. That is, between the telephone network 10 and the integrated wireless control station 200, between the wireless base station 30A or the wireless base station 30B and the integrated wireless control station 2
It is possible to exchange control and call signals with 00. (B) Function for determining whether the call from the integrated mobile radio (100T) is for the radio base station 30A or the radio base station 30B (c) The call from the integrated mobile radio (100T) is for the radio base In the case of the station 30A, a control signal is sent to the control circuit 211A.
Or a function of transmitting a control signal to the control circuit 211B when the call is directed to the wireless base station 30B. (D) Integrated mobile wireless device using the incoming call system A (1
00T), or to the mobile wireless device (100A), or to the integrated mobile wireless device (100) that uses the incoming call system B.
T) or a function to determine whether to the mobile wireless device (100B) (e) If the incoming call is to the integrated mobile wireless device (100T) or the mobile wireless device (100A) that uses the system A, control the control signal The integrated mobile radio (100 with the function of transmitting to the circuit 211A or the incoming call using the system B
T), or a function of transmitting a control signal to the control circuit 211B in the case of the mobile wireless device (100B). (F) Integrated mobile wireless device (100T), mobile wireless device (100A or B) housed in its own system. ) Function for storing / retrieving the current position (g) It is determined whether or not the call traffic is congested, and whether or not to execute the communication is determined based on the result, and which system is usable when executing the communication. Function to be performed (h) Regarding the control signal transmission method in cooperation with the control circuit 211A or the control circuit 211B, the function of adopting a method more suitable for the system A or the system B, that is, the adoption of the distributed control or the centralized control method is determined. function.

Next, details of the system operation of the present invention are shown in FIG.
~ It demonstrates by FIG. As described above, the central point of control in the mobile radio system is the integrated radio control station 200.
It controls all the devices that make up the system and operates according to this instruction. 12-
FIG. 14 is a flow chart of the calling operation from the integrated mobile radio (100T), which will be described below. Integrated mobile radio (100
T), the wireless base station 30A, the integrated wireless control station 200, and the telephone network 10 are assumed to be in operation. When the integrated mobile wireless device (100T) is opened (power switch is turned on), the control signal sent from the nearest wireless base station 30A is received. As a result, the self-integrated mobile radio (10
0T) exists within the service area of the mobile radio system A, and accordingly, the communication operation is recognized to be performed according to the operation procedure of the system A (S101). Now, when the integrated mobile wireless device (100T) in such a state hangs up (hangs up the handset) (S102), a call control signal is transmitted from the wireless transmission unit to the nearest wireless base station 30A. (S103). This signal is transmitted to the wireless base station 30.
It is received by A (S103).

When the radio base station 30A analyzes the contents of the signal (S104) and confirms the ID of the integrated mobile radio (100T), the integrated mobile radio (100T) belongs to both system A and system B. Since it is recognized that the integrated mobile radio device is present, the calling signal is transferred to the integrated radio control station 200 (S105). Now, the wireless base station 3
In the integrated radio control station 200 which has received the call signal from 0A (S106), the contents of the signal are analyzed and the radio base station 30A
Integrated mobile radios (100
The radio base station 3 recognizes that the signal is a calling signal from T).
It is investigated whether or not the call traffic near 0A is congested (S107). If it is not congested as a result, it is decided to allocate the communication wireless channel of the system A (for example, channel 1), and the wireless base station 30A
It transmits to (S108). If the call traffic is congested, a busy signal is sent to the integrated mobile radio to cause the integrated mobile radio to abandon the call by the same operation as shown in FIG.

Next, as a result of step (S108), the radio base station 30A which has received the radio channel allocation signal from the integrated radio control station 200 transmits the signal to the integrated mobile radio device (100).
Transfer to T) (S109). Integrated mobile radio (100
In T), this signal is received, and a dial signal is transmitted through the assigned call wireless channel (S110). The radio base station 30A that receives this dial signal transfers it to the integrated radio control station 200 (S111). The integrated radio control station 200 receives this signal, and the integrated mobile radio (1
If the telephone number of the desired destination of 00T) is included in the telephone network 10, a dial signal is transmitted to the telephone network 10 (S
112). The telephone network 10 that has received this dial signal identifies the telephone of the other party in the network and transmits a calling signal (S113). Also, along with this, the integrated radio control station 2
A call signal is also transmitted to 00 (S114). The integrated radio control station 200 receives this calling signal, and the radio base station 30
Transfer to A (S115). The radio base station 30A that has received this calling signal transmits the signal to the integrated mobile radio (100
Transfer to T) (S116). Received this signal (S
117) In the integrated mobile radio device (100T), a call signal is transmitted from the receiver of the telephone so that the caller can recognize that the call signal is being sent to the callee telephone, and the callee can pick up the receiver. Wait for hang up.

Next, the incoming call is hung up (S118).
Then, a call is executed between the calling party and the called party (S1
19). When the called party hangs on the receiver, the call ends (S120). At this time, an end signal is sent to the integrated radio control station 200 via the telephone network 10 (S121). The integrated radio control station 200 receives this end signal and transfers it to the radio base station 30A (S122). Radio base station 3
In 0A, after receiving the end signal and transmitting the signal to the integrated mobile wireless device (100T), the transmission of the wireless signal addressed to the integrated mobile wireless device (100T) of the own wireless base station is stopped (S123). On the other hand, the integrated mobile wireless device (100T) that has received the call end signal stops transmitting the wireless signal (S12).
4). As a result, all the calling / calling operations from the integrated mobile radio (100T) to the telephones included in the telephone network 10 are completed.

Next, a case where a call is issued from the integrated mobile radio (100T) from the service zone of the system B will be described with reference to the flowcharts of FIGS. It is assumed that the integrated mobile wireless device (100T), the wireless base station 30B, the integrated wireless control station 200, and the telephone network 10 are in operation. When the integrated mobile wireless device (100T) starts operating (power switch is turned on), the control signal sent from the nearest wireless base station 30B is received. As a result, the self-integrated mobile wireless device (100T) recognizes that it exists within the service area of the mobile wireless system B, and accordingly, the communication operation should be performed according to the operation procedure of the system B (S150).
Now, the integrated mobile radio (100T) in such a state
Hangs up (hangs up the handset) (S1
51). At this time, in system B, the integrated mobile wireless device refers to the control signal sent from the wireless base station (30B) to check whether or not it is possible to make a call from the integrated mobile wireless device (100T). Is performed (S152).
The carrier sense is to check whether another integrated mobile wireless device or mobile wireless device 100B is making a call operation in the vicinity of the integrated mobile wireless device (100T). This is because there is a possibility of causing radio interference with a mobile radio device or the like. This is an indispensable operation in a system that adopts the distributed control method in analog cordless telephones, digital cordless telephones, and the like. It should be noted that in a system (system A in this example) that employs a centralized control system such as a mobile / car phone system, the operation may be performed in accordance with a control signal sent from the wireless base station, and this operation is not necessary.
As a result of the above carrier sense, when it is found that the call can be made, the call control signal is transmitted to the nearest radio base station 30B (S153).

This signal is received by the radio base station 30B,
The ID of the transmitted integrated mobile radio device is confirmed (S1
54). From the ID confirmation, the wireless base station 30B recognizes that the integrated mobile wireless device (100T) is an integrated mobile wireless device belonging to both system A and system B, and therefore sends a calling signal to the integrated wireless control station 200. Transfer (S
155). This signal is received by the integrated radio control station 200 (S156). Then, by analyzing the contents of the signal, it is recognized that the integrated mobile wireless device (100T) is a calling signal sent via the wireless base station 30B, and the wireless base station 30
It is investigated whether or not the call traffic near B is congested (S157). If it is not congested as a result, it instructs the wireless base station 30B to transmit a dial signal from the integrated mobile wireless device (100T) (S15).
8). The radio base station 30B that has received this signal determines the radio channel number (time slot number) to be assigned to the integrated mobile wireless device (100T), and the integrated mobile wireless device (100T)
T) is instructed to transmit a dial signal using the assigned wireless channel number (time slot number) (S
159). The integrated mobile radio device (100
In T), the dial signal is transmitted using the designated wireless channel number (time slot number) (S160).

This signal is received by the radio base station 30B (S1
61) and transferred to the integrated radio control station 200 (S1).
62). In the telephone network, the telephone of the other party in the network is specified, and a calling signal is transmitted by this signal (S163). Along with this, a call signal is also transmitted to the integrated radio control station 200 (S164). The integrated radio control station 200 receives this calling signal and transfers it to the radio base station 30B (S165).
This signal is transferred to the integrated mobile radio (100T) (S166). Upon receiving this signal (S167), the integrated mobile radio (100T) transmits a calling signal from the earpiece of the telephone, and causes the calling party to recognize that the calling signal is being sent to the called telephone. Wait for the called party to hang up the handset.

Next, the incoming call is hung up (S168).
Then, a call is executed between the calling party and the called party (S1
69). When the called party hangs on the receiver, the call ends (S170). At this time, an end signal is sent to the integrated radio control station 200 via the telephone network 10 (S171). The integrated radio control station 200 receives this end signal and transfers it to the radio base station 30A (S172). Radio base station 3
In 0B, after receiving the end signal and transmitting the signal to the integrated mobile wireless device (100T), the wireless signal transmission of the own wireless base station to the integrated mobile wireless device (100T) is stopped (S173). On the other hand, the integrated mobile wireless device (100T) that has received the call end signal stops transmitting the wireless signal (S17).
4). As a result, all the calling / calling operations from the integrated mobile radio (100T) to the telephones included in the telephone network 10 are completed.

The operation when the other party's telephone (mobile radio) from which the integrated mobile radio (100T) makes a call is included in another mobile telephone network is exactly the same. A call connection is made to a telephone included in the mobile telephone network. Also, the calling party is the integrated mobile radio (100T) or mobile radio 10 in the system.
If it is 0A or 100B, step (S162)
Then, instead of transmitting the dial signal to the telephone network 10, the dial signal is transmitted to the radio base station in which the other party integrated mobile radio device or the like exists, but details thereof will be omitted.

The call / call operation from the integrated mobile wireless device (100T) described above was performed when the call traffic was not congested, but the operation when the traffic is congested will be described with reference to FIG. FIG. 18 shows operations after step (S107) in FIG. The integrated radio control station 200 investigates whether or not the call traffic in the vicinity of the radio base station 30A is congested (S107). As a result, it is found that the call traffic is congested. Therefore, a busy signal is transmitted to the radio base station 30A. (S201). The radio base station 30A that receives this signal transfers it to the integrated mobile radio (100T) (S202). The integrated mobile radio (100T) receives this signal, and causes the handset to ring a busy signal (S203). As a result, the caller hangs on (the handset) (S204). Then the integrated mobile radio (10
At 0T), the end signal is transmitted to the radio base station 30A and the transmission of the radio signal from the self-integrated mobile radio (100T) is stopped (S205). Integrated mobile radio (100
In the radio base station 30A that receives the end signal from T),
While transferring this signal to the integrated radio control station 200,
The transmission of the wireless signal from the own wireless base station 30A is stopped (S206). Further, the integrated radio control station 200 that has received the call termination signal from the radio base station 30A confirms the call termination (S207).

The above operation is the integrated mobile radio (100T)
Although it was a call / call from the integrated mobile radio (100
The incoming operation to T) is performed in the same manner. In this case, the integrated radio control station 200 exerts the following functions. (I) The dialed signal from the telephone network 10 is identified, and the called mobile wireless device is a mobile wireless device 100A belonging to the system A.
It is determined whether the mobile wireless device 100B belongs to the system B or the integrated mobile wireless device 100T shared by the systems A and B. (Ii) Incoming mobile radios 100A, 100B and
The current position of the integrated mobile radio 100T or the like is determined by searching the position registration memory. (Iii) Incoming mobile wireless devices 100A and 100B, and
Judgment of whether or not the call traffic in the area where 100T is located is congested (vi) Regarding the control signal transmission method, the method more suitable for the system A or the system B, that is, the distributed control or the centralized control method is adopted (v ) When call traffic is not congested, diversity communication is performed. As a result of the above control, incoming calls to the mobile radios 100A, 100B or integrated mobile radio (100T) will be performed smoothly, but details are omitted. To do.

It will be described below that the present invention also enables effective countermeasures against traffic congestion. However, it is limited to the case where both systems share the service area. As already described in (iii), the integrated radio control station 200 has a function of determining whether or not call traffic is congested. This is utilized as follows. That is, it is assumed that both the two systems before integration are digital systems and the above or above is satisfied.
Then, it is assumed that call traffic of one system increases and new calls cannot be made. However, even with such call traffic, as long as the call traffic of the other system is normal in the integrated system, the integrated mobile radio is requested to perform the communication operation in the system in which the call traffic is not congested. .

Next, system integration in the case where there is a difference in transmission power level between the mobile wireless device 100T and the mobile wireless device 100A or 100B will be described. In general, complete symmetry cannot be expected if there is a difference in the transmission power levels of the mobile radios of the two systems that are system integrated. The perfect symmetry means that the mobile radio 100A or 100B and the mobile radio 100T can receive the same service in all service areas of the system-integrated system. The following example illustrates whether a perfectly symmetrical service can be expected.

It is assumed that the system A is a 1.5 GHz band digital portable / car phone, the system B is a 1.9 GHz band digital cordless phone, or a system integration with a PHS system. The transmission power level of the mobile wireless device 100A (terminal of system A) is 1 W level, and the transmission power level of the mobile wireless device 100B (terminal of system B) is 10 mW level, so there is a 100-fold difference.
Therefore, when carrying the integrated mobile radio 100T having a transmission power level of 10 mW and entering deep inside a large building, even if the system A is outside the service area, if the place is the service area of the system B, In the integrated system, it is possible to easily talk using the mobile radio 100T. On the other hand, it is assumed that communication is carried when the user walks outside the service area of the system B carrying the mobile wireless device 100T. In this case, the location would be the coverage area of system A, but in an integrated system mobile radio 100T would not always be able to talk. The radio base station 30A of the system A is installed under the condition that the transmission power of 1 W from the mobile radio can be received, and the distance between the radio base stations is considerably large. Therefore, unless the mobile radio 100T is located near the radio base station of the system A, a good call will not be possible.

Further, when the portable device is installed in a vehicle such as an automobile that moves at high speed to perform communication operation, it may be difficult to make a call. The above problems are not technical problems but economic problems. That is, it is possible to solve the problem by increasing the number of wireless base stations of the system A and reducing the distance between the wireless base stations. However, this will increase the system cost. Although the above description has been made on the case where the system integration is performed between two systems, it is naturally possible to similarly perform the system integration between three or more systems.

[0052]

The effect of the invention is, above all, an improvement in the convenience of the service user, that is, the mobile radio device carrier. Until now, mobile terminal owners of mobile and car phone systems have been unable to talk deep inside large buildings. However, with the spread of digital cordless telephones (PHS services), these service areas will be set in large-scale buildings. Therefore, by applying the present invention, it becomes possible to make calls even in large-scale buildings. This means that it is not necessary for the user to carry a digital cordless telephone terminal and a digital portable / car telephone terminal. Next is the improvement of effective utilization of frequency. This is because there is a system that provides the same kind of service, for example, a telephone service, in the same service area, and there is a problem in terms of effective frequency utilization, and profitability is improved by integration. Also, from the perspective of reducing system cost,
A system-integrated system is superior to the cost associated with expanding each system to enable similar services. It is assumed that a mobile / car phone subscriber carries a mobile device and walks in a large building. In order to enable communication without system integration, it is necessary to install base stations for mobile and car phones in large-scale buildings where digital cordless telephone services are provided. This is a double investment with a digital cordless phone, and the system cost rises. On the other hand, the cost of the integrated system is much lower than that when separate systems exist because, for example, when designing an integrated mobile radio, the larger the common part through which the signals of both systems pass, the larger the cost increase. It is economical. Furthermore, when the service areas of the systems that are not integrated in the integrated system overlap, effective measures can be taken even when the call traffic of any system is congested.
Also, when traffic is low, it is possible to adopt diversity that spans the system. Therefore, the effect of the present invention is extremely large.

[Brief description of drawings]

FIG. 1 is a network configuration diagram showing an integrated mobile radio network configuration of a system according to the present invention.

FIG. 2 is another network configuration diagram showing an integrated mobile radio network configuration of the system of the present invention.

3 is a diagram showing a circuit configuration of an embodiment of an integrated mobile wireless device which is a component of FIG.

FIG. 4 is a diagram showing another circuit configuration of an embodiment of an integrated mobile wireless device which is a component of FIG.

5 is a diagram showing another circuit configuration of an embodiment of the integrated mobile wireless device which is a component of FIG.

6 is a diagram showing another circuit configuration of an embodiment of the integrated mobile radio device which is a component of FIG.

FIG. 7 is a diagram showing another circuit configuration of an embodiment of the integrated mobile wireless device which is a component of FIG.

FIG. 8 is a diagram showing another circuit configuration of an embodiment of the integrated mobile wireless device which is a component of FIG.

9 is a diagram showing another circuit configuration of an embodiment of an integrated mobile radio device which is a component of FIG.

10 is a diagram showing another circuit configuration of an embodiment of the integrated mobile radio device which is a component of FIG.

11 is a diagram showing a circuit configuration of an embodiment of an integrated radio control station which is a component of FIG.

FIG. 12 is an example of a flow chart of a calling operation from the integrated mobile wireless device in the present invention.

13 is another example of the flow of the calling operation in the present invention together with FIG. 12.

FIG. 14 is another example of the flowchart of the calling operation according to the present invention together with FIG. 12.

FIG. 15 is another example of the flow of the call operation from the integrated mobile wireless device in the present invention.

FIG. 16 is another example of the flow of the calling operation in the present invention together with FIG. 15.

FIG. 17 is another example of the flow of the calling operation according to the present invention together with FIG. 15.

FIG. 18 is another example of the flow of a call operation from the integrated mobile wireless device in the present invention.

FIG. 19 is a network configuration diagram showing a practical mobile radio network configuration.

20 is a diagram showing a configuration of a mobile wireless device which is a component of FIG.

21 is a diagram showing a configuration of a radio base station which is a component of FIG.

FIG. 22 is a diagram showing a configuration of a system-usable mobile wireless device that is in practical use.

[Explanation of symbols]

 10 telephone network 20A radio control station 20B radio control station 22 telephone line 30A radio base station 31A signal processing unit 32A radio transmission circuit 35A radio reception circuit 38A decoder group 39A decoding circuit group 40A control unit 41A clock generator 42A timing generation circuit 51A Coder group 52A Encoding circuit group 100A-1 Mobile radio 100A-2 Mobile radio 100A-n Mobile radio 100B-1 Mobile radio 100B-2 Mobile radio 100B-m Mobile radio 100T-1 Integrated mobile radio 100T-2 Integrated Mobile Radio 100T-p Integrated Mobile Radio 101 Telephone Unit 101A Telephone Unit 120 Reference Crystal Oscillator 120A Reference Crystal Oscillator 121-1 Synthesizer 121-2 Synthesizer 121A-1 Synthesizer 121A-2 Synthesizer 121 B-1 Synthesizer 121B-2 Synthesizer 132A Radio transmission circuit 132B Radio transmission circuit 133 Transmission mixer 133A Transmission mixer 133B Transmission mixer 134 Modulation circuit 134A Modulation circuit 134B Modulation circuit 135A Radio reception circuit 135B Radio reception circuit 136 Reception mixer 136B Reception mixer Mixer 137 Detection circuit 137A Detection circuit 137B Detection circuit 138 Decoder 138A Decoder 138B Decoder 139 Decoding circuit 139A Decoding circuit 139B Decoding circuit 140 Integrated control unit 140A Control unit 151 Coder 151A Coder 151B Coded circuit 152 Encoding circuit 200 Integrated radio control station 200A Integrated radio control station 201 Common control unit 211A Control unit A 211 The control unit B

Claims (14)

[Claims] 1. A plurality of mobile radiotelephone means (100A) and a radio base means (30A) which communicate with each other using a predetermined radio frequency band, and control and connect the plurality of radio base means (30A). Wireless control means (20A)
And a telephone network (10) are interconnected to enable any combination of calls between the plurality of mobile radio telephone means and between the mobile radio telephone means and the telephone network (10). There is a first mobile communication means, and a plurality of mobile radiotelephone means (100) that communicate with each other using a radio frequency band different from that of the first mobile communication means.
B) and wireless base means (30B), and wireless control means (20) for controlling and connecting the plurality of wireless base means (30B).
B) and the telephone network (10) are connected to each other, and any combination of calls between the mobile radio telephone means and between the mobile radio telephone means and the telephone network (10) is possible. There is a second mobile communication means, and in order to integrate and use the first and second mobile communication means, the wireless control means (20A) and the wireless control means (20B) are integrated. Integrated wireless control means (20
0) and the integrated mobile radio telephone means (100T) having both the communication function of the mobile radio telephone means (100A) and the communication function of the mobile radio telephone means (100B).
A mobile communication method that enables integration of a plurality of mobile communication means by providing a function of alternately receiving signals sent from the radio base means (30A) or the radio base means (30B) in time series. 2. Recognizing that there is an incoming call from the telephone network (10) to the integrated radio control means (200) and the called mobile radio telephone means is the integrated mobile radio telephone means (100T), When the current position is communicable with the radio base means (30A) belonging to the first mobile communication means, an incoming call signal is transmitted to the first radio base means (30A), and the integrated mobile radio telephone means ( If the current position of 100T) is communicable with the radio base means (30B) belonging to the second mobile communication means, a plurality of mobile communications are performed by transmitting an incoming call signal to the second radio base means (30B). A mobile communication method that enables integration of means. 3. Recognizing that there is an incoming call from the telephone network (10) to the integrated radio control means (200) and the called mobile radio telephone means is the integrated mobile radio telephone means (100T), When the current position is communicable with both the wireless base means (30A) belonging to the first mobile communication means and the wireless base means (30B) belonging to the second mobile communication means, the integrated wireless control means ( 200) A mobile communication method capable of integrating a plurality of mobile communication means by selecting a wireless base means for communication in accordance with the order of priority defined by 200) and transmitting an incoming call signal. 4. The integrated mobile radiotelephone means (100T).
2. The plurality of mobile communication units according to claim 1, further comprising a circuit unit through which a signal communicating with the first wireless base unit (30A) and a signal communicating with the second wireless base unit (30B) pass in common. A mobile communication method that enables integration. 5. When the communication traffic between the first radio base means (30A) and the integrated mobile radiotelephone means (100T) is congested, the integrated mobile radiotelephone means (100T) includes One radio base means (30
A mobile communication system capable of integrating a plurality of mobile communication means according to claim 1, wherein the communication function with A) is stopped and the communication function can be changed to communication with the second radio base means (30B). Communication method. 6. The integrated radio control means (2) when communication traffic between the first radio base means (30A) and the integrated mobile radio telephone means (100T) is congested.
In 00), the communication function with the first wireless base means (30A) is stopped, and the communication function can be changed to the communication with the second wireless base means (30B). A mobile communication method capable of integrating a plurality of mobile communication means. 7. The determination of the frequency to be used for an incoming / outgoing call from the first or second mobile radiotelephone means is carried out by a procedure determined by the first or second mobile communication means, and finally the integrated radio A mobile communication method enabling integration of a plurality of mobile communication means according to claim 1, which is determined by control of a control means (200). 8. The decision of the frequency to be used for an incoming / outgoing call from the first or second mobile radiotelephone means is proceeded by a procedure determined by the first or second mobile communication means, and finally the integrated radio A mobile communication method enabling integration of a plurality of mobile communication means according to claim 1, which is determined by control of a control means (200). 9. A plurality of mobile radiotelephone means (100A) and a radio base means (30A) which communicate with each other using a predetermined radio frequency band, and control and connect the plurality of radio base means (30A). Wireless control means (20A)
And a telephone network (10) are interconnected to enable any combination of calls between the plurality of mobile radio telephone means and between the mobile radio telephone means and the telephone network (10). There is a first mobile communication means, and a plurality of mobile radiotelephone means (100) that communicate with each other using a radio frequency band different from that of the first mobile communication means.
B) and wireless base means (30B), and wireless control means (20) for controlling and connecting the plurality of wireless base means (30B).
B) and the telephone network (10) are connected to each other, and any combination of calls between the mobile radio telephone means and between the mobile radio telephone means and the telephone network (10) is possible. There is a second mobile communication means, and in order to integrate and use the first and second mobile communication means, the integrated wireless control means (200A) and the mobile wireless telephone means (100A) have communication. A mobile communication method capable of integrating a plurality of mobile communication means by an integrated mobile radio telephone means (100T) having both functions and the communication functions of the mobile radio telephone means (100B). 10. A plurality of mobile radiotelephone means (100A) for communicating with each other using a defined radio frequency band.
And wireless base means (30A) and wireless control means (20A) for controlling and connecting the plurality of wireless base means (30A)
And a telephone network (10) are interconnected to enable any combination of calls between the plurality of mobile radio telephone means and between the mobile radio telephone means and the telephone network (10). There is a first mobile communication means, and a plurality of mobile radiotelephone means (100) that communicate with each other using a radio frequency band different from that of the first mobile communication means.
B) and wireless base means (30B), and wireless control means (20) for controlling and connecting the plurality of wireless base means (30B).
B) and the telephone network (10) are connected to each other, and any combination of calls between the mobile radio telephone means and between the mobile radio telephone means and the telephone network (10) is possible. When there is a second mobile communication unit that is independent of each other and service areas that enable communication between the first and second mobile communication units exist independently of each other, the first mobile radiotelephone unit (100A) Is integrated with the function of the second mobile radiotelephone means (100B), and the second mobile radiotelephone means (100B) is equipped with the function of the first mobile radiotelephone means (100A). The mobile radiotelephone means (100T) is provided with an integrated radio control means (200) that integrates the radio control means (20A) and the radio control means (20B). Move In any of the service areas that enable the communication of the communication means, the movement that enables the integration of a plurality of mobile communication means that enables (calls to) the integrated mobile radiotelephone means (100A). Communications system. 11. The calling information from the integrated mobile radiotelephone means (100T) in (claiming) the identification information of the mobile radiotelephone means in the integrated radio control means (200). A mobile communication system capable of integrating a plurality of mobile communication means capable of identification. 12. The integrated mobile radiotelephone means (100T) according to claim 6, wherein the identification information possessed by the radio base means (30A) or the radio base means (30B) that enables the opposite communication is identified. A mobile communication system that enables integration of a plurality of mobile communication means including means for performing. 13. The first mobile radiotelephone means (10) included in the first mobile communication means according to claim 6.
0A) and the second mobile radiotelephone means (100B) included in the second mobile communication means perform a plurality of mobile communication means under the control of the integrated radio control means (200). Mobile communication system that enables the integration of. 14. In the communication performed by the integrated mobile radiotelephone means (100T) according to claim 6, the radio base station (30A) and the second mobile communication means included in the first mobile communication means are connected to each other. The radio base station included (3
0B), and a mobile communication system that enables integration of a plurality of mobile communication means that enable simultaneous communication with each other.