JPH06276567A - Mobile communication system - Google Patents

Abstract

PURPOSE:To impart a function specific to a group to a moving machine by discriminating a moving machine number to be a connection destination and connecting it when the connection request by internal group number is performed. CONSTITUTION:A closed area 5 is composed by one or plural exclusive radio zones 4 dedicated to the plural moving machines 2 which belong to the same group 3 within a mobile communication network 1. Within an exchange 10 for moving communication controlling the connection of the moving machines, a group discrimination means 11, a moving machine number discrimination means 12 and an internal group connection processing means 13 are provided. The discrimination means 11 indexes a group number from zone numbers and the discrimination means 12 indexes the moving machine number specific to the moving machines from the internal group numbers to be used for the connection between the moving machines within the closed area. At this point, the processing means 13 discriminates the moving machine number to be a connection destination and connects it when the connection request by the internal group number for the moving machines which belong to the same group is performed from the moving machines within the closed area. Thus, a transfer becomes possible and the specific function can be imparted to the moving machines 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile communication system, and more particularly to a mobile communication system for making outgoing / incoming connections such as mobile phones.

Facilities such as a golf course and a ski resort are often operated by a specific company or a local government. In such an operation type facility, employees or users (players) from an office or outside of the facility. It is convenient to use the functions of the private branch exchange (PBX) and the key telephone device, such as extension connection, group representative connection, and transfer function, when contacting each other). Often there is. However, in such an outdoor-centered facility, there are many employees and players who want to contact each other outdoors, so even if a private branch exchange or the like is installed, a wired extension telephone is often useless.

For this reason, it is conceivable to connect a wireless communication device to a private branch exchange and contact an outdoor employee or player with a wireless telephone, but currently, a wireless communication device that can be used for private use is office work. Since it is exclusively for use in a premises where a calling area is a limited area such as in a factory or a factory, it cannot cover a golf course or a ski area having a large area.

On the other hand, in recent years, the number of users of mobile communication services for public communication such as automatic telephones and mobile phones has been steadily increasing. However, mobile communication networks used for such mobile communication services covering a wide area are Most of the golf courses and ski areas established in mountainous areas are out of the service area because the urban areas are still set as important points. When the above outdoor facilities are in the service area of the mobile communication network, employees can have a mobile phone, but the current mobile devices (mobile phone and car phone terminal) of the mobile communication network are Since all are single-subscribers, it is not possible to use convenient functions such as connection and transfer by extension number, unlike the extension telephone of the private branch exchange.

Under the above circumstances, in an outdoor facility having a wide area such as a golf course or a ski resort operated by a specific company or local government, the mobile unit is connected in the same manner as an extension telephone of a private branch exchange. It is desired to realize a mobile communication system capable of performing the above.

[0006]

2. Description of the Related Art FIG. 8 is a diagram for explaining the configuration of a conventional mobile communication network. FIG. 8 shows the configuration of an automobile telephone network, which is one of mobile communication networks. However, since the facilities of the automobile telephone network are generally shared with the mobile phone, which is the main subject of the present invention, FIG. The conventional technique will be described with reference to FIG. Hereinafter, communication by a car phone or a mobile phone is generically referred to as “mobile communication”, and a mobile subscriber, such as a car or a mobile phone (sometimes called a mobile station or a mobile terminal) is collectively referred to as a “mobile device”. The subscriber number and the unique number assigned to the mobile device are referred to as the “mobile device number”, assuming that they are the same number.

In the mobile communication network 21 of FIG. 8, two service areas 25, an urban area A and an urban area B, are shown. In order to cover the service area by the wireless zone, which is the range of the radio waves emitted from the wireless base station, a plurality of wireless base stations are often arranged in one service area 25. In FIG. 8, two wireless base stations (BS) 26 each in two service areas 25 and a wireless zone (CZ) 24 corresponding to each wireless base station 26 are shown.

The mobile unit 22 transmits / receives a control signal and a call signal to / from a radio base station 26 in a radio zone 24 in which the mobile unit 22 is located. The mobile unit 22 performs mobile communication by setting or releasing the radio channel. This is performed by the connection control function of the telephone exchange (MLS) 20. When the mobile communication switch has a hierarchical structure in the mobile communication network 21, the mobile communication switch at the gate level (hereinafter referred to as MGS) is used as the mobile communication switch.
And a required number of mobile communication switches (hereinafter referred to as MLS) 20 on the subscriber level. MGS8 is MLS
It may be merged with 20, but in Figure 8 MG with a single configuration
S8 is shown. In the present specification, when simply referred to as “mobile communication switching device”, it means MLS. A radio line control station (MCS) 29 shown in FIG. 8 is a station located between the MLS 20 and the radio base station 26 to control the radio line.

In Japan, as a connection number for mobile communication (car phone), "0" is used for connection from a subscriber (not shown) of a fixed communication network 7 such as a telephone network to a mobile device 22 and a connection between mobile devices 22. + "Mobile communication identification number and area identification number (two-digit number)" + "Mobile unit number (7-digit number)" is generally used. In this numbering system, the two-digit number of the mobile communication identification number and the regional identification number is used as a number for identifying that the call is for the mobile device and also for designating the area where the mobile device is located. For example, if two types of numbers “30” and “40” are set as this number, the caller uses either one according to the area where the mobile device is located. For example, if the mobile device is within 160 km. Use "30" if it is assumed to be located, and "40" if it is assumed to be located in an area more than 160 km away.

The mobile unit number is a 7-digit number and is not divided into a station number and a subscriber number like a fixed communication network, but in practice, for example, the first two digits identify the mobile communication network. Corresponding to the identification of the telecommunications carrier providing the communication service), the next two digits can identify the station (generally called the home memory station) in which the subscriber information of the mobile device is stored. Often granted.

On the other hand, the connection from the mobile unit 22 to the subscriber telephone of the fixed communication network 27 is “0” + “area code” + “local area code” + “subscriber number”, that is, in the fixed communication network nationwide. It is common to use a numbering system called a number (up to 9 digits for numbers except "0"). Therefore, although the number structure is different between the mobile communication network and the fixed communication network, the number used for connection to and from the mobile device in the mobile communication network is unified as “0” + maximum 9 digit number ”. There is. Less than,
This numbering system is the universal numbering system ("Electronic Information and Communication Handbook" [The Institute of Electronics, Information and Communication Engineers, March 1988]
Issued on 30th] Equivalent to "Universal number system" on page 2044).

In FIG. 8, when a subscriber of the fixed communication network 7 makes a call to the mobile station 22 using the connection number of the universal number system, the call is sent directly from the fixed communication network 7 or by M.
It is connected to the MLS 20 which controls the connection of the area where the called mobile device 22 is located via the GS 8. The MLS 20 simultaneously sends out the mobile station numbers of the called mobile stations 22 using all the wireless zones 24 in charge of the own exchange as the calling area. When the mobile station 22 responds, the MLS 20 connects to the caller and makes a call.

When a certain mobile unit 22 connects to another mobile unit 22 in the mobile communication network 21, if both mobile units 22 belong to the connection control area of the same MLS 10, the MLS 20 sets both mobile units 22.
However, in the case of connection with a long-distance mobile device (not shown), the MGS8 or another MLS (not shown) is relayed and connected. When the mobile device 22 connects to a subscriber of the fixed communication network 7, the MLS 20 connects to the fixed communication network 7 directly or via the MGS 8 to connect to the desired subscriber.

In the configuration shown in FIG. 8, a call can be made between the fixed communication network 7 and the mobile unit 22 or between the mobile units 22 as described above.
Even if the user moves from one wireless zone 24 to another wireless zone 24, the call can be normally continued (the description is omitted because it is a known technique).

The mobile device of the conventional mobile communication network 21 described above
Since all 22 are single subscription types, the above universal number must be used even when communicating between mobile devices belonging to the same group (for example, a company or a local government) within the same service area, and it is fixed. It is not possible to connect with a short extension number such as a private branch exchange or a key telephone device of a communication network.

In the conventional mobile communication network, when calling a mobile unit belonging to a specific group and the number of the mobile unit of the other party is unknown, the mobile unit is connected to the group by wire or the mobile unit belonging to the group is called. One of them must be specified and connected, the correct mobile unit number must be confirmed, and the mobile unit must be reconnected. If the first dialed mobile unit cannot be connected, another mobile unit number must be specified to reconnect. In particular, in the case of an organization that uses mobile numbers to be carried by employees or customers who go outdoors depending on the date and time, the caller can know the mobile number of the mobile device that the other party wants to contact. Since it does not exist, it takes time to confirm the mobile device number.

The above problem is originally solved by a private branch exchange or a key telephone device, but since a wired extension telephone cannot be used in a facility mainly outdoors, a wireless communication device is installed in the private branch exchange. However, it is necessary to let outdoor employees and players have wireless telephones. However, since the conventional wireless communication device used in combination with a private branch exchange or the like is dedicated to the premises with a limited area as a calling area, it is impossible to cover a golf course or a ski area having a large area. It's a reality.

[0018]

As described above, the conventional mobile communication network is for public communication shared by a large number of subscribers. And only universal numbers were used to connect mobiles to subscribers of fixed networks. In other words, the conventional mobile communication network does not consider the usage pattern in which a specific organization uses a separate numbering system. Therefore, even if you want to use multiple mobile devices as one group at an outdoor facility operated by a specific company or local government, you can
For example, it has been impossible to provide convenient functions peculiar to the group such as intra-group call corresponding to extension call of a private branch exchange in a fixed communication network, connection to group representative number, or intra-group transfer.

The present invention provides a mobile communication system in which a closed area is constituted by one or a plurality of wireless zones dedicated to a plurality of mobile devices belonging to the same group, and the mobile devices within the closed area are given a group-specific function. The purpose is to do.

[0020]

FIG. 1 is a basic configuration diagram of the present invention. In the figure, 1 is a mobile communication network, 2 is a plurality of mobile devices belonging to the same group, 3 is a group composed of a plurality of mobile devices 2, and 4 is provided in the mobile communication network 1 for each group, and the same group 3 1 or a plurality of dedicated wireless zones dedicated to a plurality of mobile devices 2 belonging to 5; 5 is a closed area constituted by the dedicated wireless zone 4; 6 is a wireless base station; 7 is a fixed communication network; and 10 is a closed area 5. It is a mobile communication exchange that controls the connection of mobile units located in the area.

Reference numerals 11 to 16 are provided in the mobile communication exchange 10. Reference numeral 11 denotes group identification information (hereinafter referred to as a group number) arbitrarily given to each group 3 and each group 3.
Group identification means for storing the identification information (hereinafter referred to as zone number) of the dedicated wireless zone 4 used exclusively by the user and for indexing the group number from the zone number; 12 is the closed area 5; The intra-group number arbitrarily assigned to each mobile unit 2 in the group 3 for use in connection between the mobile units 2 and the mobile unit assigned to each mobile unit 2 as a unique number in the mobile communication network 1 It is a mobile unit number identifying means that can store the numbers correspondingly and can index the mobile unit number from the in-group number.

Reference numeral 13 denotes a dedicated radio zone 4 in which a call is made when a connection request by the mobile station 2 in the closed area 5 to another mobile station 2 belonging to the same group 3 by the intra-group number is issued. It is an intra-group connection processing means for identifying the zone number and identifying the mobile station number of the mobile station 2 of the connection destination through the group identifying means 11 and the mobile station number identifying means 12.

Reference numeral 14 is provided in the mobile unit number identification means 12,
A representative number identifying means capable of indexing a predetermined mobile unit 2 to be connected as a representative in each group 3 when a connection request specifying a group is made, and 15 is a subscriber of the fixed communication network 7. Alternatively, when the mobile device of the mobile communication network 1 makes a connection request designating the group 3 by a predetermined method, the mobile device 2 is preset to be connected as a representative in the designated group 3. The machine number is identified through the mobile machine number identifying means 12 and the representative number identifying means 14,
A representative connection processing means for connecting to the mobile device having the identified mobile device number, 16 is used so that the mobile device 2 in the call state transfers the call partner to any mobile device 2 in the same group 3 by a predetermined method. It is a transfer processing means for transferring and connecting the call partner to the transfer destination mobile unit 2 when a request is made.

[0024]

Operation: FIG. 1 shows a plurality of mobile units 2 belonging to the same group 3.
2 shows a state in which two dedicated wireless zones 4 are set as wireless zones to be used only by the mobile devices 2 belonging to this group 3 and are covered by the two dedicated wireless zones 4. The service area to be provided is the closed area 5 for the group 3 only. Although the closed area is set for each group, FIG. 1 shows only one group 3 and one closed area 5 dedicated to this group 3. Further, in this example, the group 3 uses two dedicated wireless zones 4, but the number of dedicated wireless zones is appropriate depending on the size of the area used by the group and the terrain (which affects radio wave propagation). Only the number is set.

When the dedicated wireless zone is set, the group identification means 11 in the mobile communication switching system 1 stores the group number of each group and the zone number of the dedicated wireless zone used by each group in association with each other. .

Each mobile unit 2 has a mobile communication network 1
A mobile unit number, which is a unique number within the group, is assigned, but in addition to this, a group number used for connection between mobile units within the closed area 5 composed of two dedicated wireless zones 6 Is arbitrarily given and stored in the mobile unit number identifying means 12 in association with the in-group number and the mobile unit number.

In the above state, one mobile unit (hereinafter referred to as a calling mobile unit) 2 belonging to the group 3 becomes another mobile unit (hereinafter referred to as a called mobile unit) 2 in the same group 3. The connection operation when a call is made using the in-group number will be described.

The connection information sent from the calling mobile station 2 at the time of making a call is transmitted to the mobile communication exchange 10 via the radio base station 6, but the mobile communication exchange 10 is transmitted by a function not shown in the figure. The number of the wireless zone where the call was made can be identified. When the control unit (not shown) that controls the connection in the mobile communication exchange 10 confirms the zone number of the calling wireless zone, it accesses the group identification means 11 to determine whether the calling wireless zone is a wireless zone dedicated to the group. Check if

In the above example, since the calling mobile station 2 is calling from the dedicated wireless zone 4, the control section calls the group and the calling mobile station 2 calls the group 3. Confirm that you belong.

The intra-group connection processing means 13 operates in parallel with the control unit, but when the call from the group is confirmed, the intra-group number of the group 3 and the mobile number are stored in association with each other. Access the machine number identification means 12,
Based on the received in-group number of the called mobile unit 2, the mobile unit number of the mobile unit is indexed, and the called mobile unit 2 is called by the mobile unit number. The call between the mobile units 2 is started by the response of the called mobile unit 2.

Next, a case where a group-specified connection (hereinafter referred to as a group-specified connection) is made from the fixed communication network 7 will be described. In the group-specified connection, instead of using the mobile device number of the mobile device (hereinafter referred to as the representative mobile device) for which the representative connection is made in the connection information, the connection is made using the information identifying the group-specified connection and the group number. Is the way. For group-specified connection, the mobile unit number identifying means 12 has a representative number identifying means 14 therein, and the mobile unit number identifying means 12 and the representative number identifying means 14 are integrated to move the representative number of the group from the group number. The mobile number of the machine can be indexed.

When a call for a group-specified connection is received from the fixed communication network 7, the control unit causes the representative connection processing means 15 to make a representative connection. The representative connection processing means 15 is a mobile unit number identification means 12
Then, the representative number identifying means 14 is accessed, the representative mobile station of the group is indexed from the received group number to identify the mobile station number, and the representative mobile station 2 is called by this mobile station number.

When the representative mobile unit 2 responds, the caller (not shown) of the fixed communication network 7 and the representative mobile unit 2 make a call. When it is confirmed in this call that the caller requests a call with another mobile device 2, the representative mobile device 2 performs a transfer operation by a predetermined method. This operation activates the transfer processing means 16 and transfers and connects the caller to another mobile device 2.

As described above, in FIG. 1, the mobile units 2 in the closed area 5 can be connected to each other by the in-group number, and an incoming call designating a group can be moved with the representative number in the group 3. The mobile device 2 connected to the mobile device 2 can transfer the call to any mobile device 2 in the same group 3. That is, in the mobile communication system of the present invention, the mobile device 2 in the closed area 5 is
A connection function specific to the group is provided, such as connection by an in-group number corresponding to an extension call in a private branch exchange, connection to a representative number within a group, or transfer of an incoming call within a group.

[0035]

FIG. 2 is a block diagram of an embodiment of a mobile communication network to which the present invention is applied, FIG. 3 is a block diagram of an embodiment of the present invention, FIG. 4 is a block diagram of a group identification table of an embodiment of the present invention, and FIG. FIG. 6 is a block diagram of the mobile unit number / representative number identification table of the embodiment of the present invention, and FIG. 6 and FIG.

Throughout the drawings, the same reference numerals denote the same objects, 1 is a mobile communication network, 2-2 _-1 to 2- _n are mobile units forming a group, 3 is a group, and 4-4 _-1 , 4 _-2 is a dedicated wireless zone, 5 is a closed area, 6, 6 _-1 , 6 _-2 and 26 are wireless base stations, 7 is a fixed communication network, 8 is an MGS (mobile communication switch at the gate level), 9 and 29. Is a radio network controller (MCS),
10 is an MLS (switch for mobile communication on the subscriber level), 22 is a mobile device outside the group, 24 is a wireless zone, and 25 is a service area.

In the mobile communication network 1 of FIG. 2, the mountain area 30 which is outside the service area of the conventional mobile communication network 21 shown in FIG. 8 is included in the service area as the closed area 5.
The network has a wireless line control station 9 for controlling the wireless line in the closed area 5. Although FIG. 2 shows an example in which only one dedicated wireless zone 4 is provided in the closed area 5, a plurality of dedicated wireless zones 4 are provided as shown in FIG. 1 or FIG. 3 depending on the size of the closed area 5 and the terrain. May be In addition, the wireless line control station 9 in FIG. 2 is a common station with other wireless line control stations 29, or the MLS 20 or MGS 8 is used.
May be a different exchange than for other service areas 25.

2 is the same as that of the mobile communication network 21 of the prior art shown in FIG. 8 except for the closed area 5, and therefore its explanation is omitted. The closed area 5 related to the present invention will be described in detail with reference to FIG. To do. It should be noted that parts that overlap with the description of the operation of the present invention described with reference to FIG. 1 are omitted.

First, the connection between the intra-group mobile units by the intra-group number will be described mainly using FIGS. 6 and 3 showing the processing flow of the intra-group connection of the MLS 10. It should be noted that S1 to S16 in the following description are symbols indicating the respective steps in FIG.

Now, one mobile unit 2 belonging to group 3
_-1 (hereinafter, referred to as a mobile device a) makes a call to another mobile device 2 _-j (hereinafter, referred to as a mobile device j) belonging to the same group 3 by using the in-group number, and the mobile device The in-group number of j is "20j" (j is one of the numbers 0-9).

If the mobile station a is in the dedicated radio zone 4 _-1 having the zone number CZ _C1 (hereinafter referred to as radio zone CZ _C1 ), the calling signal is the radio base station of the radio zone CZ _C1. 6 _-1 (hereinafter referred to as radio base station BS _C1 )
The radio network controller (MCS _C ) 9 not shown in the figure
Sent to MLS10 via. Since the control unit (not shown) of the MLS10 receives the information of the wireless zone in which a call is made from the wireless device (not shown), it identifies that the zone number of the calling zone is CZ _C1 (S1 in FIG. 6). .

Although the intra-group connection processing unit 13 operates integrally with the control unit, when the calling zone number is identified, the group identification table 11 is accessed to determine whether the call is from a group. The operation to confirm whether or not to start.

FIG. 4 shows an example of the structure of the group identification table 11.
However, as shown in the figure, the group identification table 11
The number of each wireless zone and each wireless zone is dedicated to the group
Code indicating whether or not it is registered as a wireless zone
And the group number when registered as a group
And remembered. FIG. 4 shows two wireless zones CZ
_C1, CZ_C2The following shows an example in which groups belong to the same group. Na
A numeric code is used for the wireless zone number,
In FIG. 4, for convenience of explanation, the wireless zones shown in FIGS.
The code of the code is described.

The intra-group connection processing unit 13 indexes the group identification table 11 by the calling radio zone number CZ _C1, and confirms that the radio zone CZ _C1 is registered in the group and the group number is "101". Identify (S2). When it is identified that the call is made by the group, the intra-group connection processing unit 13 receives the transfer of the intra-group number received by the control unit (not shown), and starts numerical analysis (S3, S4).

As described in the prior art, in the conventional mobile communication network, when a mobile station originates, the fixed communication network 7 is used.
The universal number is used for both the call to the subscriber and the call to the mobile device, and the first number is "0". On the other hand, in the connection using the intra-group number according to the present invention, the intra-group number that does not use "0" as the first digit is used. In the above example, since the mobile device a dials the intra-group number “20j” of the mobile device j, the intra-group connection processing unit 13 determines that this call is a connection by the intra-group number, and performs the intra-group connection process. Enter (S5, S
6). Then, the intra-group connection processing means 13 accesses the mobile unit number identification table 12 and indexes the mobile unit number of the mobile unit having the intra-group number "20j".

FIG. 5 shows an embodiment of the structure of a table in which the mobile unit number identification table 12 and the representative number identification table 14 are integrated.
As shown in FIG. 5, the mobile unit number / representative number identification table stores the number of the wireless zone dedicated to the group corresponding to the group. Therefore, the wireless zone number can be indexed from the group number if necessary. it can.

The intra-group connection processing unit 13 accesses the portion in the mobile unit number / representative number identification table 12/14 in which the group number “101” related information is stored,
The mobile device number of the mobile device with the group number “20j” is “9.
022105 "is identified (S7). The intra-group connection processing unit 13 calls the mobile unit j using this mobile unit number, but the description is omitted because the calling method is a known technique (S14).

When a mobile unit belonging to a group is connected to the mobile unit 2 in the same group by using the mobile unit number instead of the in-group number or the mobile unit 22 outside the group, the first numeral is "0". And the next two digits indicate that the communication partner is a mobile device and specify the area,
For example, since it is "30" or "40" (hereinafter only "30" will be described), it becomes a general mobile device connection (S5 →
S9 → S10 → S8).

When a mobile device belonging to the group calls a subscriber (not shown) of the fixed communication network 7, the first number is "0", but the second and third numbers are "30". Therefore, the control unit of the MLS10 determines that the connection is to the fixed communication network 7, makes a call to the fixed communication network 7, and connects (S5 → S9 → S11 → S12).

When a call is accidentally made from a wireless zone other than the dedicated wireless zone using the in-group number, it is identified that the calling zone is not the dedicated wireless zone, and the first digit is not "0". Therefore, the control unit of the MLS10 refuses the connection and notifies the calling mobile unit that the connection is impossible by an audible signal or a talk key (not shown) (S3 → S13 → S14 → S16).

Next, the group designation connection will be described.
When a subscriber (not shown) of the fixed communication network 7 designates a group and calls a mobile device, for example, “0” + “mobile communication identification number and area designation number (eg,“ 30 ”)” +
Connection information such as “group designation identification number (for example,“ 012 ”) +“ mobile communication network area identification number (two-digit number) ”+“ group number (three-digit number) ”is used. Here, it is assumed that the area identification number within the mobile communication network is a number that can be identified by the mobile communication exchange that performs connection processing of the wireless zone in which the group of the connection partner is located.

When a subscriber of the fixed communication network 7 dials the above connection information, the first three digits "03" from the fixed communication network 7 are dialed.
The mobile communication network 2 is selected by "0" and is connected to the MGS 8 of Fig. 2. The MGS 8 identifies that this call is a group-specified connection call by the group-specified identification number "012" that follows, and the mobile communication is performed. A mobile communication switch on the subscriber level that performs connection processing in the area where the group designated by the area identification number in the network is located, for example, ML in FIG.
Select S10 to connect and send the necessary connection information. FIG. 7 shows a processing flow of the group-specified connection of the MLS10. Hereinafter, the operation of the MLS10 will be mainly described with reference to FIGS. 3 and 7. It should be noted that S21 to S28 are reference numerals indicating each step in FIG.

When the MLS 10 receives the above-mentioned connection information (delete unnecessary numbers) (S21), the control unit identifies whether this call is a group-specified connection call (S22), and the group-specified connection call. If not, it connects to the called mobile station by the same process as the conventional one (S27). Since the group designation identification number "012" is included here, the index enters the representative number of the designated group, but a group-specified connection request is made from a mobile station in the wireless zone in which the local exchange performs connection processing. Therefore, it is checked here whether or not it is within the receiving zone of the own exchange (MLS10) by the "area identification number in the mobile communication network" (S23, S24). Own exchange (MLS10)
If it is not in the receiving zone, the corresponding mobile communication exchange is indexed by a predetermined method (explanation omitted) and connected to the mobile communication exchange (S28).

When it is confirmed that the incoming call is a group-specified connection call in which the receiving area of the MLS 10 is specified, the representative connection processing unit 15 causes the mobile unit number / representative number identification table 12/14 shown in FIG.
The group number received by accessing the
If it is 1 ", the representative number is indexed. As shown in FIG. 5, since the mobile station with the intra-group number" 201 "is designated as the representative mobile station with the group number" 101 ", the mobile station number" 9022100 "is specified. Is indexed, and the mobile station a having this mobile station number is called (S25, S26).

As a result of the mobile device a responding and talking with the caller of the fixed communication network 7, the caller wants to talk with another mobile device 2- _i (hereinafter referred to as mobile device i). Then, the mobile device a performs the transfer operation for the mobile device i by a predetermined method. When a transfer operation is performed, the transfer processing unit 16 holds the calling party and calls the mobile device i. When the mobile device i responds, the mobile device a is first connected to the mobile device i, and when the mobile device a disconnects. Connect the caller and mobile device i to make a call. Since the transfer operation in the exchange is a known technique, detailed description will be omitted.

As described above, according to the present invention, the mobile units belonging to the group can be connected to the mobile units within the same group by using the short intra-group number corresponding to the extension number in the private branch exchange of the fixed communication network. Even if a subscriber of a fixed communication network or a user of a mobile device does not know the mobile device number of the other party, if he / she knows the group number, he / she can connect to the representative mobile device of the group and have it transferred to the other party. Since it is possible, the purpose can be achieved with one connection.

The MLS 10 in the above performs connection processing of the conventional general mobile unit 22 corresponding to a single subscriber, and at the same time,
In order to perform group connection processing for the mobile stations 2 in the closed area, a subscriber exchange that performs connection processing for general subscribers in a fixed communication network and an office-installed group telephone exchange (for example, “Electronic Information and Communication Society”, “Electronics Communication Society”) Information and Communication Handbook ", March 30, 1988, page 2175, published by Ohmsha)
It is an exchange that is equivalent to the subscriber exchange that merged with.

The embodiments of the present invention have been described above with reference to FIGS. 2 to 7. However, FIGS. 2 to 7 merely show a part of the embodiments of the present invention, and the present invention has been illustrated. Of course, it is not limited to only one. For example, in FIG.
In the description, the intra-group connection processing unit 13, the representative connection processing unit 15, and the transfer processing unit 16 are described separately, but the effect of the present invention does not change even if these are integrated with a control unit (not shown). . In addition, the mobile communication network 2, MLS1
0, group identification table 11, mobile unit number / representative number identification table 12
/ 14 and the like may have various configurations other than those shown in the drawings, but it is clear that the effect of the present invention does not change even if these configurations are changed. In addition, the number of digits and numerical values of the connection information used in the description are for easy understanding, and it is needless to say that the effect of the present invention does not change even if these are changed.

Further, in the above, only the intra-group connection by the intra-group number and the group designation connection are explained as the functions peculiar to the group, but the closed area is established by one or a plurality of wireless zones dedicated to a plurality of mobile devices belonging to the same group. It is apparent that it becomes extremely easy to provide the group-specific functions other than the above, for example, the various group functions of the private branch exchange or the key telephone device of the fixed communication network, by configuring the area. For example, in FIG.
In this case, only one mobile device with a representative number is selected from each group, but if the representative mobile device is busy or does not respond, the connection order is given to the item designated by the representative so that the next mobile device can be called. Such modifications are easy, and the present invention does not exclude these modifications.

In FIG. 2, the closed area 5 is assumed to be a golf course or a ski area in a mountain area away from the service areas 25 of the urban areas A and B, but only the radio frequency is changed to an area overlapping the service area 25. Clearly, it is possible to set a closed area in the same area as the urban area A or B by setting a dedicated wireless zone. As a result, it becomes possible to give a specific group having a large number of mobile units that move in a large area in an urban area to the same group connection function as the private branch exchange.

[0061]

As described above, according to the present invention,
Mobile stations belonging to the same group can be connected to each other by using a short and easy-to-memorize intra-group number as in the case of an extension telephone housed in a private branch exchange. In addition, since group-specified connections that have the same utility as representative number connections in fixed-line networks are possible, fixed-line subscribers and other mobile devices do not need to know the mobile device number of the other party. Thus, it becomes possible to connect to the representative mobile device of the group and have the transfer connection to the desired mobile device via the representative mobile device. For this reason, the connection operation to a mobile device belonging to a company, a local government, or the like having a large area in a business area where a wired extension telephone housed in a private branch exchange or a private-use wireless telephone cannot be applied is particularly simplified.

Further, the above function can be realized by providing a wireless zone dedicated to a specific group, but it is considered that it is easy to set the dedicated wireless zone especially in a mountain area where the radio wave demand is low. Outdoor facilities such as a golf course and a ski resort, which have been established in such an area and are conventionally outside the service area of the mobile communication network, can easily receive the mobile communication service. Also, as long as there are available radio waves, it is possible to set up a dedicated wireless zone in urban areas, so it is possible for a specific group that has a large number of mobile stations that move within a large area in an urban area, similar to a private branch exchange. A group connection function can be added.

As described above, the present invention largely contributes to the improvement of the convenience of the mobile communication service and the expansion of the usage range.

[Brief description of drawings]

FIG. 1 is a basic configuration diagram of the present invention.

FIG. 2 is a block diagram of an embodiment of a mobile communication network to which the present invention is applied.

FIG. 3 is a block diagram of an embodiment of the present invention.

FIG. 4 is a block diagram of a group identification table according to an embodiment of the present invention.

FIG. 5 is a block diagram of a mobile unit number / representative number identification table according to an embodiment of the present invention.

FIG. 6 is a flowchart of connection processing according to the embodiment of the present invention (No. 1)

FIG. 7 is a flowchart of connection processing according to the embodiment of the present invention (part 2).

FIG. 8 is a configuration diagram of a conventional mobile communication network.

[Explanation of symbols]

 1 mobile communication network 2 mobile device 3 group 4 dedicated wireless zone 5 closed area 6 wireless base station 7 fixed communication network 10 mobile communication switch 11 group identification means 12 mobile equipment number identification means 13 intra-group connection processing means 14 representative number identification means 15 Representative connection processing means 16 Transfer processing means

Claims (2)

[Claims] 1. The same group (3) is provided in the mobile communication network (1).
A closed area (5) composed of one or more dedicated wireless zones (4) dedicated to a plurality of mobile devices (2) belonging to the group is provided corresponding to the group, and is located in an area including the closed area (5). In the mobile communication switch (10) that controls the connection of the mobile device, the group number arbitrarily assigned to each group (3) and the dedicated wireless zone exclusively used by each group (3)
Group identification means (1) that can store the zone number of (4) correspondingly and can index the group number from the zone number
1) and a mobile number (2) in the closed area (5) and an intra-group number arbitrarily assigned to each mobile device (2) in the group (3) for use in connecting to each other, A mobile unit number identifying means that can store the mobile unit number assigned to each mobile unit (2) as a unique number in the mobile communication network (1) and index the mobile unit number from the in-group number ( 12) and the mobile unit (2) in the closed area (5) are in the same group.
When a connection request is made to the other mobile device (2) belonging to (3) using the in-group number, the zone number of the dedicated wireless zone (4) from which the call is made is identified and the group identification is performed. The means (11) and the intra-group connection processing means (13) for identifying and connecting the mobile device number of the destination mobile device (2) through the mobile device number identification means (12), Mobile communication system. 2. Each group when a connection request specifying a group is made in the mobile unit number identifying means (12).
(3) is provided with a representative number identifying means (14) capable of indexing a predetermined mobile unit (2) to be connected as a representative, and is fixed in the mobile communication exchange (10). When a connection request specifying the group (3) is made by a subscriber of the communication network (7) or a mobile device of the mobile communication network (1) by a predetermined method, the representative of the specified group (3) The mobile unit number of the predetermined mobile unit (2) to be connected as is identified through the mobile unit number identification means (12) and the representative number identification unit (14), and the identified mobile unit number is The representative connection processing means (15) for connecting to the mobile device with which it has and the mobile device (2) in the call state transfer the call partner to any mobile device (2) in the same group (3) by a predetermined method. When the request is made, a transfer processing means (16) for transferring and connecting the call partner to the transfer destination mobile device (2) is provided. Motomeko 1 mobile communication system according.