JP3344987B2 - Campus network system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a corporate network in which a plurality of PBXs for exchanging a plurality of mobile radio telephones are installed, and the same mobile radio telephone can be moved to any PBX in the network. The present invention relates to a radiotelephone and a local network system capable of making outgoing and incoming calls from a station.

[0002]

2. Description of the Related Art FIG. 9 shows a configuration diagram of a conventional wireless telephone exchange system. In a conventional wireless telephone switching system, a plurality of private branch exchanges (PBXs) are installed, and each PBX is connected to each other as a corporate network. In FIG. 9, the PBX 100 includes a wireless connection control device RC110 and a wireless end interface device RI.
F104, general telephone TEL109, general telephone terminal interface device LIF105, public network interface device COT106, and corporate network interface devices TRK107 and TRK108, respectively.
Or two or more. In addition, the PBX100 has
It includes a communication path switch SW103, a central control device CP101, and a storage device MEM102. SW103
Is controlled by the central control device CP101. Data necessary for connection control of the central control device CP101 is stored in the storage device MEM102. Other P
The BXs 200 and 300 have the same configuration.

In FIG. 9, an interface device COT 106 for communicating with a public network is an interface device for communication via a general public network. The corporate network interface devices TRK107 and TRK108 are:
An interface device for connecting to other PBXs 200 and 300 and the like. The general telephone TEL109, the mobile radio telephone, and the like are provided with numbers indicating the respective identification codes, and the correspondence between the identification codes and the interface devices connected thereto is registered in advance in the storage device MEM102 of the PBX 100. .

In FIG. 9, a PBX 100 includes a radio connection controller RC110 and a radio terminal interface device R
Via the IF 104, besides the general telephone TEL109,
Mobile wireless telephones such as mobile wireless telephones RT111 and RT112 can be connected and exchanged. The radio connection control device RC110 receives a radio signal from the mobile radio telephone and sends it to the exchange via the radio end interface device RIF 104, or converts a call signal from the exchange into a radio signal and transmits it to the mobile radio telephone. To transmit and receive wireless signals. The wireless connection control device and the mobile wireless telephone can communicate at a specific frequency in any exchange, and in the case of a private branch exchange, each power is determined so as to reach a predetermined range (for example, within 100 m). The mobile radio telephone communicates with a radio connection control device in the service area.

In order for the PBX 100 to perform radio connection control, it is necessary to manage which radio connection control device RC each mobile radio telephone RT is near. This is called location registration management. The position registration management registers and updates the position of each mobile radio telephone RT near which radio connection control device RC in the PBX, and manages the position. The mobile radio telephone is managed in the home station using one of the PBXs as the home station.

[0006] In the above conventional example, since the mobile radio telephone can be connected in combination with an arbitrary radio connection control device in the same exchange, the mobile radio telephone can be moved to a nearby radio station no matter where it moves. If a connection control device is provided, outgoing and incoming connections can be made using the wireless connection control device. In other words, the home station manages the correspondence between the mobile radiotelephone and the wireless connection control device by location registration, thereby enabling outgoing and incoming connections.

[0007]

However, in the above-mentioned prior art, since only the location registration in the same exchange is managed, the mobile radiotelephone does not provide the service of the exchange other than the exchange whose location is registered. Outgoing and incoming connections cannot be made when moving to an area. That is, the mobile radio telephone cannot be used only in the service area of the home station because the exchange information does not exchange the mobile information of the mobile radio telephone.

[0008] An object of the present invention is to provide a private network system and a wireless communication system that can perform outgoing and incoming connections when a mobile radiotelephone moves, even if the mobile radiotelephone moves from a registered exchange to a different exchange. To provide a telephone.

[0009]

In order to achieve the above object, a plurality of exchanges for performing telephone exchanges, a plurality of radio telephones whose positions are registered in a home station with at least one of the exchanges as a home station, In a private network system having one or more wireless connection control devices for connecting a telephone to the exchange, the exchange records an identification code of the wireless connection control device with which the wireless telephone can communicate. The wireless connection control device periodically outputs a position registration instruction request signal to which the identification code of the wireless connection control device is added to the wireless telephone; Recording means for recording an identification code of a wireless connection control device to which a wireless telephone can be connected; and identification information of the wireless connection control device for the position registration instruction request signal. Comparing means for comparing whether the code and the identification code of the wireless connection control device in the recording means registered earlier match, and when the comparison result does not match, the location registration instruction request signal to the exchange. And a position registration request signal output means for outputting a position registration request signal to which the identification code of the wireless connection control device and the identification code of the wireless telephone have been added, wherein the recording means has an identification code when the comparison result does not match. The exchange has a determination means for determining whether or not the exchange is a wireless telephone having the exchange as a home station from the location registration request signal. For phone location registration,
This is achieved by updating the identification code of the corresponding wireless connection control device and registering the identification code of the wireless connection control device and the identification code of the wireless telephone in the case of a visitor wireless telephone that does not use the exchange as a home station. .

If the exchange is a visitor radiotelephone that does not use the exchange as a home station,
Mobile terminal notification signal output means for outputting a mobile terminal notification signal by adding the identification code of the wireless telephone and the identification code of the exchange, and the registration means of the exchange is provided with a mobile terminal notification signal from another exchange. If the identification code of the wireless telephone is the identification code of the wireless telephone having its own exchange as the home station, the identification code of the other exchange of the mobile terminal notification signal is registered as a visitor station, and if there is an incoming call, The information processing apparatus may further include a transfer unit for referring to the registration unit and transferring the identification code of another exchange corresponding to the wireless telephone to the visitor station when the identification code is registered.

[0011] If the mobile station notification signal from the visitor station is an identification code of a wireless telephone having its own exchange as a home station, the exchange outputs a visitor answer signal to which the identification code information of the own exchange is added. Can be sent to the station.

[0012] The registration means of the exchange has a home station area for registering the location of a radio telephone having its own exchange as a home station, and a visitor station area for registering the location of a visitor radio telephone which does not have its own exchange as a home station. May be provided.

[0013] Further, there is provided a database memory for registering the identification code of the wireless connection control device and the home station number to which the wireless telephone can be connected for all the wireless telephones. In the case of a visitor radio telephone which does not use the exchange as a home station from the location registration request signal of the telephone, the identification code of the exchange of the home station of the radio telephone is obtained by referring to the database memory. , The identification code of the wireless connection control device, and the identification code of the wireless telephone can be registered.

If the exchange is a visitor radiotelephone that does not use the exchange as a home station, the exchange adds the identification code of the radiotelephone and the identification code of the exchange to the exchange of the home station of the visitor radiotelephone. Further comprising a mobile terminal notification signal output means for outputting a mobile terminal notification signal, wherein the registering means of the exchange of the home station, by a mobile terminal notification signal from another exchange, of the other exchange in the mobile terminal notification signal The identification code is registered as a visitor station, and when there is an incoming call, the registration means is referred to. When the identification code of another exchange is registered corresponding to the wireless telephone, the identification code is registered in the visitor station. It may further have a transfer means for transferring.

[0015] The database memory further stores at least one of a predetermined service class in a home station of the mobile radiotelephone, and information on whether or not a line can be transmitted. The control specified by the service class can be performed with reference to the database.

[0016] The wireless telephone has input means for receiving an output instruction of a position registration request signal to which the wireless telephone has added an identification code of the wireless telephone to the exchange. When a registration request signal is received, the identification code of the wireless connection control device can be added to the location registration instruction request signal and transmitted to the exchange.

[0017] A common signal line for communicating movement information of the radiotelephone between exchanges may be further provided.

Also, a plurality of exchanges for performing telephone exchanges provided with one or more wireless connection control devices for communicating with a wireless telephone, and a plurality of wireless exchanges connected to and exchanged with the exchanges by the wireless connection control devices. In a private network system having a telephone, the wireless connection control device has an area in which communication with the wireless telephone is possible, and the wireless telephone has moved to a different area with a detecting means for detecting movement to a different area. Location registering means for registering with the exchange via the wireless connection control device, wherein the exchange has a function of detecting whether a wireless telephone has moved from the area of the wireless connection control device provided in another exchange, Determining means for determining whether or not the mobile device has moved out of the area of the wireless connection control device provided in the wireless communication device, and determining whether the mobile device is in the area of the wireless connection control device provided in another exchange. A movement notifying means for notifying the other exchange that the wireless telephone has moved to the own exchange when moving, and an incoming call upon receiving a notification of movement of the wireless telephone from the other exchange. In such a case, a transfer means for transferring the data to another exchange may be provided.

The wireless telephone is provided with input means for receiving an identification code corresponding to the other exchange when the wireless telephone has moved from the area of the wireless connection control device provided in another exchange, and the wireless telephone has moved. May be provided together with an identification code, and a location registration unit for registering with the exchange via the wireless connection control device.

[0020]

In the private network system of the present invention,
The registration means of the exchange records an identification code of the wireless connection control device with which the wireless telephone can communicate.

The wireless connection control device periodically outputs, to the wireless telephone, a position registration instruction request signal to which the identification code of the wireless connection control device is added.

The recording means of the radio telephone records the identification code of the radio connection control device to which the radio telephone can connect, and the comparison means compares the identification code of the radio connection control device of the position registration instruction request signal with the identification code of the radio connection control device. A comparison is made as to whether the identification code of the recording means registered earlier matches. When the comparison result is inconsistent, the location registration request signal output means outputs a location registration request signal to the exchange, to which the identification code of the wireless connection control device of the location registration instruction request signal and the identification code of the wireless telephone are added. Output, and the recording means updates the identification code when the comparison result indicates a mismatch.

The determination means of the exchange determines from the location registration request signal whether or not the exchange is a radio telephone having the exchange as a home station. The registration means determines the position of the radio telephone having the exchange as a home station. In the case of registration, the identification code of the corresponding wireless connection control device is updated, and in the case of a visitor wireless telephone not using the exchange as a home station, the identification code of the wireless connection control device and the identification code of the wireless telephone are registered. .

[0024]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment to which the present invention is applied will be described.
This will be described with reference to FIGS.

FIG. 1 is a diagram showing the configuration of the system.
A plurality of private branch exchanges (PBXs) are installed, and each PBX is
Indicates a state in which they are interconnected as a corporate network. In FIG. 1, a PBX 100 includes a radio connection control device RC110, a radio terminal interface device R
IF 104, general telephone TEL109, general telephone terminal interface device LIF105, public network interface device COT106, corporate network interface devices TRK107 and TRK108, and
One or two or more common line signal line devices CSE113 and 114 are provided. Further, the PBX 100 includes a communication path switch SW103 and a central control device CP10.
1 and a storage device MEM102. SW10
3 is controlled by the central control device CP101. Data necessary for connection control of the central control device CP101 is stored in the storage device MEM102. Other P
The BXs 200 and 300 have the same configuration.

In FIG. 1, an interface device COT 106 for communicating with a public network is an interface device for communication via a general public network, and a plurality of devices can be provided. Corporate network interface device TRK1
07 and TRK108 are the other PBXs 200 and 3
00 is an interface device for connecting to
There can be more than one. Common line signal line equipment CSE1
Reference numerals 13 and 114 denote interface devices for connecting a common line signal line for control signals to the other PBXs 200 and 300 separately from the communication line.

The general telephone TEL109, the mobile radio telephone, and the like are provided with numbers indicating their respective identification numbers (or identification codes), and the storage device MEM of the PBX 100.
In 102, the correspondence between the identification number and the connected interface device is registered in advance.

In FIG. 1, a PBX 100 includes a radio connection control device RC110 and a radio terminal interface device R
Via the IF 104, besides the general telephone TEL109,
Mobile wireless telephones such as mobile wireless telephones RT111 and RT112 can be connected and exchanged. The radio connection control device RC110 receives a radio signal from the mobile radio telephone and sends it to the exchange via the radio end interface device RIF 104, or converts a call signal from the exchange into a radio signal and transmits it to the mobile radio telephone. To transmit and receive wireless signals. The wireless connection control device and the mobile wireless telephone can communicate at a specific frequency, and in the case of a private branch exchange, the respective powers are determined so as to reach a predetermined range (for example, within 100 m). The mobile radiotelephone communicates with radio connection controllers within this service area.

Further, in order for the PBX 100 to perform wireless connection control, it is necessary to manage which wireless connection control device RC each mobile radio telephone RT is near. This is called location registration management. In the position registration management, the registration means in the PBX registers and updates the position of each mobile radio telephone RT near which radio connection control device RC is located, and manages it. FIG. 2 shows the configuration of a location registration management table in an area in the storage device of the registration unit on the PBX side.
In FIG. 2, an extension number, an identification number (RT-ID) of the mobile radio telephone RT,
It has an identification number (RC-ID) and station number information of the wireless connection control device RC. Extension number and RT-ID are 1
RT-ID and wireless connection control device R
Although the correspondence with the C-ID is a one-to-one correspondence in FIG. 2, the correspondence with the C-ID is usually a one-to-n relationship, and indicates a wireless connection control device RC that can be used by the mobile radio telephone RT. ing. The station number information is an identification of an exchange indicating to which station (exchange) the mobile radio telephone RT is moving, or from which station (exchange), when the mobile radiotelephone RT is moving to another exchange. Number information. When not moving, nothing may be shown as shown, or the number of the home exchange may be registered. Further, this table includes a table for home indicating the correspondence of the mobile radio telephone RT originally belonging to the PBX, and a table for the visitor temporarily storing information of the mobile radio telephone RT moved from another station. The table size is the maximum number of mobile radiotelephones RT accommodated in the corresponding PBX for home use, and the mobile radiotelephone R for visitor use.
An appropriate size can be set according to the number of T's. The extension number of the registration area of the visitor mobile radiotelephone RT is determined in advance, and when the visitor mobile radiotelephone RT is generated, the extension number and the RT-I are temporarily set.
Make D correspond.

The example shown in FIG. 2 shows the status of the location registration management table of each station of the PBXs 100, 200 and 300 in the system configuration diagram shown in FIG. That is, the situation when the mobile radiotelephone RT112 has moved from the home station 100 to the visitor station 300 is described as another mobile radiotelephone RT.
It is shown together with 111, 211 and 311. PB
The table of the X100 station indicates that the mobile radiotelephones RT111 and 112 are accommodated as home RTs, and indicates that the mobile radiotelephone RT111 stays at the home station and is near the radio connection control device RC110. , The mobile radiotelephone RT 112 is moving, and the destination station is 300. In addition, PBX1
At the moment, there is no mobile radiotelephone RT that has moved from another station in the table of the 00 station. PBX200
In the office table, the mobile radio telephone RT211 is accommodated as the home RT, and the mobile radio telephone RT211 is stored.
Stays at the home station, and the radio connection control device RC21
This indicates that the user is near zero. In addition, PBX200
At present, there is no mobile radiotelephone RT that has moved from another station. The table of the PBX 300 station indicates that the mobile radio telephone RT311 is accommodated as a home RT, the radio connection control device RC311 stays at the home station, and is near the radio connection control device RC310. Also, the mobile radio telephone RT11
2 indicates that it is moving from another station (PBX 100), indicating that it is near the radio connection controller RC310. The location registration management table stores a corresponding radio connection control device R every time the mobile radiotelephone RT moves.
C is updated. In this way, by dividing the location registration management table into areas for the home station and for the visitor station, location registration can be managed using the mobile radiotelephone RT moved from another station as a visitor.

In each mobile radiotelephone RT,
It is possible to internally register which wireless connection control device RC the own device is near.

There are two types of location registration management, automatic and manual, and these can usually be used together. When performing automatic location registration, the radiotelephone includes a recording unit that records an identification code of a radio connection control device to which the radiotelephone can connect, and a radio communication control device identification code of the location registration instruction request signal. Comparing means for comparing whether or not the identification code of the recording means registered previously matches the identification code of the wireless connection control device of the position registration instruction request signal to the exchange when the comparison result does not match; A position registration request signal output unit that outputs a position registration request signal to which the identification code of the wireless telephone is added, wherein the recording unit can update the identification code when the comparison result does not match.

In the automatic location registration, the radio connection controller RC
Sends a position registration instruction request signal to the mobile radiotelephone RT in its service periodically (for example, every 3 to 5 minutes). The position registration instruction request signal is provided with wireless connection control device RC information (RC-ID) indicating a predetermined identification number of the wireless connection control device RC. In the mobile radio telephone RT, the radio connection control device RC information is registered in the recording unit in advance as position registration data. Further, the mobile radiotelephone RT may record the station number of the home station in the recording means in advance. When the mobile radiotelephone RT receives the instruction request signal, the comparing means sets the mobile radiotelephone R
The radio connection controller RC information registered in T is compared with the radio connection controller RC information that has transmitted the instruction request signal. If the wireless connection control device RC information is not registered in advance, it is registered as it is. As a result of the comparison, if the wireless connection control devices RC that have sent the instruction request signal are the same wireless connection control device RC, they are left as they are. Also, as a result of the comparison, if the radio connection control device RC that has sent the instruction request signal is a new radio connection control device RC, the mobile radio telephone RT transmits the location registration data of its own recording means to the new radio connection control device RC. Update with information. At the same time, the position registration request signal output means sends a position registration request signal to the PBX via the corresponding radio connection control device RC, and updates the data on the PBX. In addition, the mobile radiotelephone RT includes:
Has a position registration button as input means, manually,
An instruction for location registration can be accepted. In the manual position registration, for example, when the mobile radiotelephone RT receives a position registration instruction with a position registration button when necessary, such as when moving, a position registration request signal is transmitted to a radio near the mobile radiotelephone RT. Sent to connection control device RC. The identification number (RT-ID) of the mobile radiotelephone RT is added to the position registration request signal. When the PBX receives the position registration request signal via the corresponding radio connection control device RC, the PBX side receives the mobile radio telephone RT. The identification number (RT-ID) of the mobile radio telephone RT as the location registration data of the telephone RT
And the identification number (RC-I
D) is updated.

FIG. 3 shows an operation sequence for updating the location registration management table when the mobile radiotelephone RT moves between stations. The example shown in FIG. 3 shows an operation sequence when the mobile radiotelephone RT112 moves from the PBX 100 to the station of the PBX 300 and performs location registration. In this case, the exchange has registration means for recording an identification code of the wireless connection control device with which the wireless telephone can communicate, and the exchange is set as a home station from a position registration request signal of the wireless telephone. The registration means updates the identification code of the corresponding wireless connection control device if the location registration of a wireless telephone having the exchange as a home station; If it is a visitor wireless telephone that does not use the exchange as a home station, the identification code of the wireless connection control device and the identification code of the wireless telephone are registered. Further, if the exchange is a visitor wireless telephone that does not use the exchange as a home station, the exchange adds an identification code of the wireless telephone and an identification code of the exchange to another exchange and outputs a mobile terminal notification signal. Mobile terminal notification signal output means, the registration means of the exchange, if the identification code of the wireless telephone of the mobile terminal notification signal from the other exchange is the identification code of the wireless telephone with its own exchange as the home station, The identification code of another exchange of the terminal notification signal is registered as a visitor station, and when an incoming call is received, the identification code of another exchange is registered corresponding to the wireless telephone by referring to the registration means. If there is, there is further provided a transfer means for transferring to the visitor station.

The operation sequence shown in FIG. 3 will be described below. The mobile radiotelephone RT112 performs the location registration at the destination visitor station 300 automatically or manually as described above. That is, the mobile radio telephone RT112 has the RT-ID
And sends a position registration request signal from the position registration request signal output means.

On the PBX side, the nearest wireless connection control device R
A location registration request signal is received via C, and the determination means determines whether or not the exchange is a wireless telephone having a home station. The registration unit updates the identification code of the corresponding wireless connection control device if the location registration is for a wireless telephone having the exchange as a home station. In the case of a visitor radiotelephone that does not use the exchange as a home station, the RT-ID and the RC-ID are registered in the visitor area of the location registration management table on the PBX side. When the registration is completed, the PBX sends a position registration success signal. Mobile radiotelephone RT112
Upon receiving the location registration success signal, sends a pre-recorded dial number signal of "special number + home station number" in order to notify the PBX of the station from which it has moved. If the information is not recorded on the mobile radiotelephone RT, a dial input may be accepted and transmitted. The visitor station 300 receives the dialed number signal, and displays the visitor RT on the position management table of the mobile radio telephone RT.
, The station number of the home station and the available RC-ID information are registered as information corresponding to the RT-ID. Further, the mobile registration request signal output means of the visitor station 300 sends to the home station 100 a "mobile registration request signal" indicating that the mobile radiotelephone RT 112 is moving into the service of the PBX 300 through the common channel signal line.
The T-ID and the station number information “300” are transmitted and notified. The home station 100 registers the destination station number information "300" as data corresponding to the mobile radiotelephone RT112 on the location registration management table. The home station 100 transmits a “mobile registration success” signal to the visitor station 300 when the data update processing accompanying the mobile registration is completed. The PBX 300 sends a “mobile registration successful” signal to the mobile radiotelephone RT112 as it is. Upon receiving the "moving registration successful" signal, the mobile radiotelephone RT112 can notify the user of the successful moving registration by audible sound or visual display. Thereafter, calling and receiving operations at the visitor station can be performed using the mobile radiotelephone RT. According to the above embodiment, the location is registered at the visitor station,
Further, since the home station is informed of the station number of the visitor station, in the service area of the visitor station, even if the corresponding radio connection control device RC is changed, only the location registration is performed at the visitor station. No need to contact.

FIG. 7 shows a data format exchanged between a visitor station and a home station via a common signal line. Control information can be exchanged between the PBXs when necessary or always, and the data format includes a transmission control field and a signal information field as shown in FIG. The signal information field is further provided with a plurality of areas indicating a terminal information part (RT-ID or RT telephone number) of the visitor RT and a visitor station number information part, and an area indicating a signal type and a label. It has. At the time of the above-described visitor RT location registration processing, FIG.
As shown in (a), the terminal information part (R
The corresponding identification number is inserted into the area indicating the T-ID or RT telephone number) and the visitor station number information section, and the signal is transmitted with a signal type indicating a predetermined mobile terminal notification signal. As shown in FIG. 7B, the answer signal includes an area indicating a terminal information part (RT-ID or RT telephone number) of a visitor RT and a home station number information part in the same manner as the format described above. Is inserted, and a signal type indicating a predetermined answer signal is attached and transmitted.

In the operation of the above embodiment, the mobile radio telephone R
As a means of knowing the home station number information when T moves to the visitor station, "special number + home station number" is recorded and transmitted in advance. As another means, as in the second example of the sequence of the location registration operation shown in FIG. 4, the visitor station does not previously extract the station number information of the home station from the mobile radiotelephone RT. Phone RT (Visitor R
T), the mobile radio telephone RT is moving to all the PBXs in the network.
The visitor station can transmit a "terminal movement notification signal" to which the T-ID) and the station number information of the visitor station are attached by using the common channel signal line. In this case, each station determines whether the identification code of the mobile radiotelephone RT is that of its own station,
When the home station of the mobile radiotelephone RT receives the signal, it sends a signal with the home station number information to the visitor station as an "answer signal" so that stations other than the home station do not send the answer signal as it is. You can also.

According to the second embodiment, other stations other than the home station do not respond to the corresponding signal and do not return an answer signal. It is possible to recognize from the home station number information whether or not the mobile station has moved from the station, thereby updating the station number information in the location registration management table of the visitor station and the home station.

Further, as a third embodiment, a database storing the affiliated station numbers of all the mobile radio telephones RT in the network is stored for each PBX or for all PBXs.
There is a common method. FIG. 6 shows an example of the memory configuration of the database. As shown in FIG. 6, all the mobile radiotelephones RT-ID and the corresponding telephone numbers, home station numbers, service classes, and availability of local line transmission of the mobile radiotelephones RT are stored in a memory as a database in a storage means. Register. The database memory includes a memory for recording data and a controller for controlling access from the exchange.

FIG. 5 shows an operation sequence when a database is provided. As in the third example of the sequence of the location registration operation shown in FIG. 5, when the visitor station receives a location registration request from a mobile radiotelephone RT other than its own, the database is accessed and the identification code of the visitor RT is accessed. R
It is also possible to search for data using the T-ID as a key, output the home station number of the corresponding mobile radiotelephone RT, and update the station number information in the location registration management table of the visitor station and home station based on this information. is there. In the example shown in FIG. 5, the database is the storage device MEM102 of each PBX.
Is shown as an example.

In addition to the belonging station number information corresponding to the mobile radio telephone RT in the database, the mobile radio telephone includes a service regulation class at the home station of the mobile radio telephone RT, and information on whether or not direct line transmission is possible at the visitor station. R
By storing other information about T together, when the mobile radiotelephone RT moves to the visitor station and receives a call / call connection service at the visitor station, connection control is performed based on data in the corresponding database. Can be performed.

Next, the operation in the case where the mobile radiotelephone RT moves to the visitor station and receives a call / call connection service at the visitor station will be described. FIG. 8 shows a sequence of a connection operation when an incoming call is made to the visitor mobile radio telephone RT at another visitor station.
In the example shown in FIG. 8, the general telephone TEL1 of the PBX 100 is used.
09 shows a case where the mobile radio telephone RT112 is called. After calling, the TEL 109 sends out the dialed number of the telephone number of the mobile radiotelephone RT112,
The home station 100 recognizes from the location registration management table that the mobile radio telephone RT corresponding to the telephone number is moving to the PBX 300. The central control device CP101 of the home station 100 communicates with the visitor station 3 via the common channel signal line.
Then, a "transfer connection request" signal is sent to 00 to extend the connection of the corresponding call to the visitor station. The "transfer connection request" signal includes the RT-ID information of the called mobile radiotelephone RT and the visitor station number. When the corresponding signal is received by the 300 visitor stations, it is an incoming call of the visitor mobile radiotelephone RT111. Recognize that the visitor station's central controller CP
301 calls the mobile radiotelephone RT111. If the mobile radiotelephone RT111 responds to the call, a "response signal" is returned to the general telephone terminal interface device LIF 105 via the visitor station and home station, and the TEL 109 and the mobile radiotelephone RT111 can start a call.

According to the above embodiment, when an incoming call is received, the incoming call is transferred to the destination visitor station, so that it can be used without changing the telephone number.

When the mobile radiotelephone RT makes a call connection at the visitor station while being in the service of the visitor station, basically, the call connection of the mobile radiotelephone RT at the home station is made in the same manner. After a call is made from the mobile radiotelephone RT to the visitor station, the dial digits of the telephone number of the other party to be called are transmitted, and the visitor station connects to the telephone corresponding to the telephone number. Visitor mobile radiotelephone RT
However, as a charging process when an outgoing line-originated call is made, a method of accounting data for each RT-ID at a visitor station or a method of charging an office line-originated call via a home station and performing a charging process at a home station is used. There is a method such as making it.

[0046]

According to the present invention, the mobile radiotelephone can receive the service of the outgoing call and the incoming call connection regardless of the movement to any PBX service area in the network.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a PBX wireless system.

FIG. 2 is a configuration diagram of a location registration management table in the PBX.

FIG. 3 is an operation sequence of a first example for updating a location registration management table.

FIG. 4 is an operation sequence of a second example of updating the location registration management table.

FIG. 5 is an operation sequence of a third example for updating the location registration management table.

FIG. 6 is a memory configuration diagram of a database.

FIG. 7 is a signal format of a common signal line.

FIG. 8 is a connection operation sequence when an incoming call is received by a moving RT.

FIG. 9 is a configuration diagram of a conventional private network system.

[Explanation of symbols]

100, 200, 300 ... PBX, 101, 201
Reference numeral 301: Central control device; 102, 202, 302: storage device; 103, 203, 303: communication path switch, 10
4, 204, 304 ... wireless terminal interface device, 1
05, 205, 305: General telephone terminal interface device, 106, 206, 306: Public network interface device, 107, 207, 307: Corporate network interface device, 108, 208, 308: Corporate network interface device, 109・ 209 ・
309: general telephone; 110, 210, 310: wireless connection control device; 111, 112, 211: mobile radio telephone.

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification code FI H04Q 3/545 H04Q 7/04 C 3/58 106 H04B 7/26 104A 7/36 106B 7/38 109L 109B H04L 11/20 102Z (58) Field surveyed (Int.Cl. ⁷ , DB name) H04B ^7/ 24-7/26 102 H04Q ^7/ 00-7/38

Claims (2)

(57) [Claims] 1. A plurality of exchanges for performing telephone exchange, a plurality of radio telephones whose positions are registered in a home station with at least one of the exchanges as a home station, and one or more telephones for connecting the radio telephones to the exchange. In a private network system having two or more wireless connection control devices, the exchange has registration means for recording an identification code of the wireless connection control device with which the wireless telephone can communicate, and the wireless connection control device Periodically outputs a position registration instruction request signal to which the identification code of the wireless connection control device is added to the wireless telephone, and the wireless telephone controls wireless connection control to which the wireless telephone can connect. Recording means for recording an identification code of the device;
Comparison means for comparing whether or not the identification code of the wireless connection control device of the position registration instruction request signal matches the identification code of the wireless connection control device in the recording means registered earlier,
Position registration request signal output means for outputting a position registration request signal obtained by adding the identification code of the wireless connection control device of the position registration instruction request signal and the identification code of the wireless telephone to the exchange when the comparison result does not match; Wherein the recording means updates an identification code when the comparison result does not match, and the switching means determines from the location registration request signal whether or not the switching apparatus is a wireless telephone having the switching apparatus as a home station. The registration unit updates the identification code of the corresponding wireless connection control device if the location registration is for a wireless telephone having the exchange as a home station, and is a visitor wireless telephone that does not use the exchange as a home station. For example, a private network system in which an identification code of a wireless connection control device and an identification code of the wireless telephone are registered. 2. A plurality of exchanges for performing telephone exchanges, a plurality of radio telephones whose locations are registered in a home station with at least one of the exchanges as a home station, and one or more telephones for connecting the radio telephones to the exchange. In a private network system having two or more wireless connection controllers, a database memory for registering an identification code and a home station number of the wireless connection controller to which the wireless telephone can be connected for all wireless telephones. The exchange has registration means for recording an identification code of the wireless connection control device with which the wireless telephone can communicate, and the wireless connection control device periodically, with respect to the wireless telephone, The wireless telephone outputs a position registration instruction request signal to which an identification code of the wireless connection control device is added, and the wireless telephone sets the position registration instruction request signal. A location registration request signal output unit that outputs a corresponding location registration request signal to the exchange; and the exchange determines from the location registration request signal whether the exchange is a wireless telephone having a home station. The registration means updates the identification code of the corresponding wireless connection control device if the location registration is for a wireless telephone having the exchange as a home station, and a visitor not having the exchange as a home station. In the case of a radio telephone, the identification code of the exchange of the home station of the radio telephone is obtained by referring to the database memory, and the identification code of the exchange of the home station, the identification code of the wireless connection control device, and the identification code of the radio telephone are obtained. A private network system for registering an identification code.