JPS59156040A - Mobile communication system for unrestricted area - Google Patents

Abstract

PURPOSE:To expand the capacity of subscriber numbers given to a mobile device by using a main number when a call is made with the main number of the mobile device and the mobile device to be called is located at a home area, informing a tentative number of a caller side when the mobile device is at the outside of the home area and using a tentative number for attaining incoming control. CONSTITUTION:When the number of a mobile device 30 is X and an identification code of its home area 31 is 10, 10X is given to the mobile device 30 as the main number. When the mobile device 30 is moved to an area 32, the mobile device 30 transmits the main number 10X of itself to a mobile communication exchange 7. The exchange 7 searches the tentative number from a memory 16 and stores the tentative number and the main number with correspondence and transmits the main number 10X and the tentative number to a mobile communication exchange 6. The exchange 6 stores the 10X and 20Y to a memory 15 with correspondence. In this code 20Y, 20 stands for an area identification code of the area 32. In dialing 03010X including a mobile communication identification number from the telephone set 1, the number is transmitted to a relay exchange 4 via relay exchanges 2, 3 and the number 10X is transmitted to the exchange 6. A CC13 reads the tentative number 20Y corresponding to the number 10X and informs tentative number information from a talkie device 10 to the telephone set 1.

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field of the Invention The present invention, when making a call to a mobile device, assumes in advance the location of the called mobile device, and uses an area number (
This invention relates to improvements to area-specific mobile communications systems that require dialing in one area-specific code.

Prior Art and Problems Currently, this type of area-specific mobile communication system is provided in Japan, such as the car phone system.

The ship telephone system is as follows: ■All charges are borne by the caller, depending on the distance and time between departure and arrival.

■The charge is calculated by the ROS switch or LS switch based on the number dialed by the caller.

■Dial numbers should be 10 digits or less in order to use existing telephone exchange equipment as is.

Taking a car phone as an example, the numbering plan is 1060" (mobile communication service identification number) 10CN (area designation code) + EFGHJ (subscriber number). Only 5 digits can be used as a subscriber number.However, in conventional car phone systems, a unique subscriber number is assigned in all areas.
The drawback was that the subscriber number capacity was small.

OBJECT OF THE INVENTION The present invention is an improvement over such conventional drawbacks.
The purpose is to make it possible to expand the capacity of subscriber numbers that can be assigned to mobile devices without increasing the number of digits in the subscriber number.

Structure of the Invention The present invention provides a region-specific mobile communication system in which incoming call control for mobile terminals existing in a service area consisting of a plurality of areas is performed based on an area designation code and a subscriber number that specify the area in which incoming calls are desired. , the area where each mobile device mainly exists is defined as the home area of that mobile device. Each area has a permanent subscriber number to be assigned to a mobile device that has its home area as its home area, and a temporary subscriber number to be assigned to a mobile device that has moved from another area. Each mobile device is assigned a fixed number consisting of a subscriber number and the area code of its home area, and if the mobile device is located in an area other than its home area, , a temporary number consisting of a temporary subscriber number and a region designation code of the destination area is assigned. Additionally, when a mobile device moves to an area other than its home area, the exchange that controls incoming calls to the home area and the exchange that controls incoming calls to the destination area share the mobile device's real number and temporary number. are registered in association with each other. When a call is made that includes the real number, if the destination mobile device is in the home area by referring to the registration details, the real number is used to control the incoming call, and if the destination mobile device is in the home area, the call is controlled using the real number. The system notifies the calling party of a temporary number, and when a call including a temporary number is made, the registered contents are referred to and the corresponding temporary number is used to control incoming calls.

Embodiment of the Invention The figure is a block diagram of main parts showing an example of a system implementing the area designated mobile communication system of the invention. a mobile communication exchange; 8 and 9 are communication path network devices; 10 is a talkie device;
11.12 is a register, 13.14 is a central control unit, 1
5.16 is memory, 17-21 is output trunk, 22-2
6 is an entry trunk, 27, 28 is a wireless base station, 29 is a common line signal path, 60 is a mobile device, 31 is a home area where the mobile device 60 mainly exists, and 32 is a home area of other mobile devices (not shown). This is a great area to visit. This area 31.3
The size of 2 is, for example, approximately equal to the area of a prefecture, but it may be larger or smaller.

In the figure, the subscriber number of the mobile device 30 is assumed to be '1234'.
5'', the mobile device 60 is assigned to area 31 at this number.
A region designation code indicating that this is the home area, for example 11
A telephone number '1012345' with 0'' added is fixedly assigned to the mobile device 60 as a real number.

Similarly, real numbers are assigned to other mobile devices as well.

In the system shown in the figure, the mobile device 60 is in the home area 61
When the mobile device 30 moves to the area 32, it sends its real number '1012345' to the mobile communication exchange 7 via the radio base station 28 using a known technique.

'101234 in register 12 of mobile communication exchange 7
5'', the central control unit 14 accesses the memory 16 to search for a temporary number for a vacant destination, associates one temporary number with the real number of the mobile device 30, and stores it in the memory 16.
At the same time, it identifies the area designation code 110 in "1012345" and sends the real number '1012345' of the mobile device 30 to the mobile communication exchange 6 via the common line signal path 29.
and send out a temporary number. In addition, the central control unit 18 behind the mobile communications exchange also received '1012545' and '209.
8765" and stored in the memory 15. Here, a temporary number is a subscriber number that is not used as a real number,
A region designation code is added to identify the destination area, for example, area 32 is 'ooooo' to '899.
Have a subscriber number up to 99'' for the main number, '900
If subscriber numbers from 00'' to '99999'' are to be used as temporary numbers, for example, a mobile device that enters area 32 will receive a message consisting of 120'' representing area 32 and a vacant number '98765'. 12098765''' will be assigned as a temporary number.

Now, when a general subscriber dials the mobile communication service identification number (for example, 1030'') from the telephone 1 and the real number '1012345' of the mobile unit 50, the subscriber exchange 2
uses existing technology to connect the outgoing trunk 17 and incoming trunk 22.
The above-mentioned dialed digits are sent to the relay exchange 6 via. In addition, the relay exchange 3 received '301012345
'301012345 to the transit exchange 4 via the outgoing trunk 18 and incoming trunk 26 using existing technology based on '301012345.
When the relay exchange 4 identifies #60, it transmits ``1012345'' to the mobile communication exchange 6 via the outgoing trunk 20 and the incoming trunk 25.

The central controller 16 stores '1012345' in register 1.
1, the memory 15 is accessed based on this and it is determined whether a temporary number is stored corresponding to '1012345', and if it is stored, the temporary number (in this case '2098765') is stored. ) is read out. The central controller 16 then controls the communication path network 8 to drive the talkie device 10, and the trunk exchanges 5, 4, . Via subscriber exchange root 2 [
Temporary number information such as "Please call back to '209B675'" will be notified to general subscribers of Telephone&1. In response, the general subscriber receives '050209B675' again from telephone 1.
”, subscriber exchange 2 is connected using existing technology.
．． Exit trunk 17. Incoming trunk 12° trunk exchange 5. Exit trunk 18. Entering trunk 23. Trunk exchange 4. Exit trunk 19. Entering trunk 24. Trunk exchange5. Exit trunk 21. On the incoming trunk 26 and outgoing, the dialed digits are received in the register 12 of the mobile communications exchange 7. The central controller 14 then receives the number '20' received in the register 12.
Access memory 16 based on 98765''
1012"+45" is extracted and the call arrives at the mobile device 60 via the wireless base station 28.

In a case different from the above, if the mobile wj machine 50 is in the home area 61, the temporary number corresponding to '1012345' is not stored in the memory 15, so the central controller 16
The number '1012345' received by the register 11 arrives at the mobile station via the wireless base station 27.

Note that when the mobile device 60 returns to the home area 61 from another area, this fact is detected by sending the real number from the mobile device 30, the contents of the memory 15 and 16 are updated, and the mobile device 30 returns to the home area 61 from another area. Even when the machine 60 moves to another area, the memory contents are updated in the same way. Such an operation can be performed in a manner similar to, for example, location registration of a mobile device.

Conventionally, for example, when dialing '1012345'' is sent to a mobile device 30 that is actually located in area 52, a message such as [Please set area specification code to 120'') is issued on the talkie device, and the general subscriber '20123
45', only the subscriber number '12345' was sent from the wireless base station 28 via the mobile communication exchange 9 to control incoming calls, so if the mobile device whose home area is Area 32 is connected to the same subscriber. Number '12345''
Therefore, the subscriber number capacity was small. However, according to the present invention, the number '1012345' including the area designation code is sent to the mobile device, so even if the same subscriber number is given to the mobile device whose home area is Area 32, This is '201234
5", it can be identified on the mobile device, and therefore the subscriber number capacity can be increased. However, in order to connect the call to the mobile communication exchange corresponding to the desired area, it is necessary to It is necessary to send the matching area designation code sb,
If a temporary number that is the same as the real number of a mobile device whose home area is area 32 is assigned to the mobile device 60, the exchange 9 will not be able to tell which mobile device it is assigned to, so the temporary number used in area 32 as the real number is The mobile device 60 is given a subscriber number that does not have a subscriber number.

As described in detail, according to the present invention, a permanent number that is fixedly assigned as a public inspection code for a mobile device and a temporary number that is assigned only when moving outside the home area are prepared. Since the numbers are shared, there is an advantage that the capacity of numbers that can be assigned to mobile devices can be increased. In particular, when the probability of a mobile device moving out of its home area is low, the required temporary number capacity is small, so the effect is large, but even if the probability is small, a considerable effect can be expected. can. The invention also has the advantage that it can be implemented without significant modification to existing systems.

Furthermore, general subscribers memorize this number as if it were a general subscriber number, and can receive calls immediately if the other party's mobile device is in their home area by simply dialing this number. The station will notify you of a temporary number even if you are not present at the station, so when making a call to a mobile device, as in the conventional area-designated mobile communication system, the location of the called mobile device is assumed in advance, and the number is sent to that location. There is no need to dial the matching area number. In other words, in the system of the present invention, when making a call to a certain mobile station, the general subscriber first has to dial the main number.

[Brief explanation of the drawing]

The figure is a block diagram of essential parts showing an example of a system implementing the area designated mobile communication system of the present invention. 1 is a telephone, 6 and 7 are mobile communication exchanges, 8 and 9 are communication network devices, 10 is a talkie device, 13.14 is a central control device, 15.16 is a memory, 27.28 is a wireless base station, 29 is a common line signal path, 60 is a mobile device, and 61 is a mobile device 6.
0 is the home area where the main area exists, and 32 is the area. Patent applicant Nippon Telegraph Public Corporation agent Patent attorney Gobe Tamamushi and 6 others

Claims (1)

[Claims] In the area-specific mobile communication system, in which incoming calls to mobile devices located in a service area consisting of multiple areas are controlled based on the area designation code and subscriber number that specify the desired area, each mobile device The existing area is the home area of the mobile device, and each area has a subscriber number for the main number to be assigned to the mobile device whose home area is the own area, and a subscriber number for the main number to be assigned to the mobile device that has moved from another area. A temporary subscriber number is provided for each mobile phone, and a permanent number consisting of the permanent subscriber number and the area code of the home area is permanently assigned to each mobile phone. If the mobile device moves to an area other than the home area, a temporary number consisting of the above-mentioned temporary number subscriber number and the region designation code of the destination area is assigned, and the mobile device is responsible for controlling incoming calls to the home area when the mobile device moves to an area other than the home area. Register the real number and temporary number of the mobile device in association with the switchboard and the switchboard that controls incoming calls to the destination area, and if a call containing the real number is made, refer to the registered contents. When the destination m@ is in the home area, the real number is used to control incoming calls, and when the person is moving outside the home area, the temporary number is notified to the calling party, and the temporary number is included. A region-designated mobile communication system characterized in that when a call is made, incoming call control is performed by referring to the registered contents and using a corresponding temporary number.