JPH0226919B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field of the Invention The present invention provides a method for communicating between a caller and a called mobile station by dialing the same telephone number of the called mobile station, regardless of where the called mobile station is located. This article relates to a region-independent mobile communication system that can be connected and its charging system.

Technical background The car telephone systems currently provided in Japan are: (1) All charges are borne by the caller, depending on the distance and time between departure and arrival.

(2) Charges are calculated by the toll or local exchange using the number dialed by the caller.

(3) In order to use the existing telephone exchange equipment as is, dial numbers should be 10 digits or less.

It was designed based on this policy, and the numbering plan is 030 (car phone identification code) + CD (area designation code) +
It consists of EFGHJ (subscriber number).

Conventional technology and problems In the numbering plan of the conventional car telephone system,
Only 5 digits can be used as a subscriber number, and the subscriber number capacity is small. In addition, the caller must anticipate the location of the called mobile device in advance and dial the area code, but if the called mobile device is not in the expected location, the caller must “call back.” ”There are disadvantages such as having to do

Purpose of the Invention The present invention aims to solve these drawbacks by allowing the caller to connect the caller and the called mobile by dialing the same telephone number of the called mobile, no matter where the called mobile is. The system is designed to allow connection and to charge separately for the called mobile device of the caller and the called party.The drawings will be explained in detail below.

Embodiments of the Invention First, the current car telephone system will be explained with reference to FIG. 1, and then the mobile communication system without separate charging areas for departure and arrival of the present invention will be explained in FIG. As an example, a connection operation when a subscriber of an existing telephone network makes a call to a mobile device will be described.
For the sake of simplicity, it is assumed that each mobile communications switching center (in the following embodiment, the case of an automobile switching center (hereinafter referred to as AMC)) area corresponds to a unit rate area. Even if they do not match, the following techniques are the same.

Figure 1 shows the system configuration of the current car telephone system, where 1 indicates existing telephone network subscribers;
2 is a terminal office, 3 is a central office, 4 is a central office, 5 is a general office, 6 is a mobile telephone exchange (hereinafter referred to as home AMC) having subscriber information of the called mobile station, 7
is the destination AMC, 8,17 is the radio circuit control station, 9,1
8 is a radio base station, 10 is a called mobile device, 20 is a subscriber memory, N1 is an existing telephone network, N2 is a mobile network, R
indicates “call back”.

First, subscriber 1 of the existing telephone network calls called mobile device 1.
Assuming that 0 is in the area of home AMC 6, in the case of this car phone system, 030 (car phone identification code) + CD (area designation code of home AMC 6) +
When EFGHJ (subscriber number) is dialed, the subscriber 1 is connected to terminal station 2 → central station 3 → central station 4 → central station 5 → home AMC 6 in order according to the normal call connection as shown in Figure 1. be done. Since the home AMC 6 stores subscriber information including the location information of the called mobile device in the subscriber memory 20, in the case shown in FIG.
The area designation code is sent to the existing network subscriber (in this case, the caller) 1 by telephone or the like. For example,
Announce AMC's area designation code C'D' by telephone, etc.

Existing network subscriber (caller) 1 hears this and once again dials 030 + C'D' (area code for destination AMC7) +
Redial EFGHJ (subscriber number). Thereafter, by the same connection operation as described above, the telephone network subscriber (caller) 1 is connected to the called mobile device 10 via the called AMC 7, the radio network control station 8, and the radio base station 9.

In this case, billing is done at the toll exchange of central station 3, which identifies the call as a car phone using 030, and then sends the next CD.
The unit charge area is identified by the code, and after the start of the call, a charging pulse is sent to the local exchange of the terminal station 2 according to the distance.

In this way, in the conventional technology, the mobile device
If the caller has moved to an area other than the AMC, the caller of the existing network subscriber must listen to the CD code from the home AMC using a talkie, etc. that specifies the area where the mobile device is currently located, and then "call back" to the destination AMC again. It was hot.

To prevent this, a region-independent mobile communication system has been proposed in which the home AMC to which each mobile device belongs is determined in advance and a CD code is assigned to each AMC. As a result, by reading the CD code, the home AMC to which the mobile device belongs can be determined. In the area-independent mobile communication system, subscriber information including the location information of the mobile device belonging to the home AMC is stored, and
The AMC receives the call and learns the location of the inquired mobile device. Therefore, the caller of the existing network subscriber always dials the number containing the CD of the home AMC to which the called mobile device belongs, so there is no need to call again.

However, in the non-region mobile communication system,
Billing information for the area to which the mobile device moves cannot be obtained from the number dialed by the caller, and therefore the current billing method (the long-distance exchange identifies it as a car phone and charges the unit charge using the following CD code) method for identifying areas) could not be used.

By discontinuing (1) (while leaving (2) and (3) unchanged) of the current policy described in the technical background, the caller can dial the same telephone number of the called mobile You can connect to it, and increase your number capacity.
Furthermore, it is an object of the present invention to provide a billing method that does not require major changes to the current billing method.

FIG. 2 shows a system configuration when the mobile communication system without separate charging area of the present invention is applied to a car telephone, as an example, and the same reference numerals as in FIG. 1 indicate the same parts. Note that the present invention is based on a region-independent mobile communication system. 11 is the central station,
12 is the central station, 13 is the nearest AMC to the central station 11 or the central station 12, 14 is the home AMC to which the mobile device of interest belongs, 15 is the destination AMC corresponding to the area where the mobile device of interest is currently located, and 16 is the common line ( CCITT No. signal line), TX(1) indicates the originating subscriber billing range, and TX(10) indicates the mobile device billing range.

Furthermore, in the prior art, all charges are made to the existing telephone network subscriber (caller) 1 whose subscriber terminal is accommodated in the existing telephone network. On the other hand, in the present invention, from the originating terminal which is a subscriber terminal of the existing telephone network to the home AMC 14 to which the called mobile device 10 belongs
Billing based on the distance (calling subscriber billing range TX(1)) and call time is based on the existing telephone network subscriber (caller)
1, and the called mobile device 10 is charged according to the distance from the home AMC 14 to the area to which the called mobile device 10 has moved (mobile device billing range TX(10)) and the call time. It's on.

Note that the home AMC 14 is the first mobile communications switching center,
The nearest AMC13 is set as the second mobile communications switching center. First, when existing telephone network subscriber (caller) 1 dials 030 (car phone identification code) + CDE-FGHJ (subscriber number), (there is no need to specify the area, service type code, car phone in this case (7 digits excluding the identification code can be used as subscriber capacity) Terminal station 2 → Central station 3 → Central station 11 (→ General station 12) are connected to higher-ranking stations in order, and on the way, calls to and from the central station 3 are connected The process is similar to the current method described above, until the exchange reads 030+CDEFGHJ and prepares to send a charging pulse determined by the CD code to the local exchange.

Next, the central office 11 or the general office 12 is connected to the nearest mobile communication switching center AMC 13. Next, the nearest AMC 13 identifies the home AMC 14 from the CD code information, inquires the home AMC 14 about the location of the called mobile device 10 through the common line 16, and learns the destination AMC 15. Next arrival AMC15
The route up to is connected. Subscriber number below
Existing telephone network subscriber (caller) 1 by CDEFGHJ
is connected to the called mobile device 10 through the radio network control station 8 and the radio base station 9.

When a call starts, a call is sent from the existing telephone network subscriber (caller) 1 to the home AMC 14, which is the first mobile communication switching center of the called mobile device 10 (TX(1) in Figure 2).
The calling subscriber billing range (shown in ) is calculated by transmitting billing pulses according to the distance from the toll originating and terminating exchange of the central office 3 to the local exchange of the terminal station 2. The caller) 1 is charged, and the charge is made to the home AMC 14 and the called mobile device 10 (see Figure 2).
The nearest AMC 13 or the home AMC 14 calculates the charges according to the distance and call time (mobile device charging range indicated by TX(10)). By recording the calculation result in the subscriber memory 20 of the home AMC 14, the called mobile device 10 is charged.

Note that in the present invention, telephone lines are not necessarily set up between all AMCs. These connections are based on the destination AMC information obtained as a result of queries from the nearest AMC to the home AMC.
This is done by a well-known routing method in the telephone network. Therefore, if there is a direct line from the nearest AMC to the destination AMC, this is used; if there is no direct line, another AMC is used as a relay exchange to connect the route. .

In this case, although there may be cases where the route does not pass through the home AMC, billing is always based on the calling subscriber charging range TX(1), which focuses on the distance from the home AMC to the caller, who is a subscriber terminal accommodated in the existing telephone network. and the mobile device billing range TX (10) focusing on the distance from the home AMC to the called mobile device.

Effects of the Invention As explained above, the present invention does not require an area designation code and can use all 7 digits as a subscriber number, increasing the subscriber number capacity and eliminating the hassle of "calling back". It has the advantages of being easy to use for callers, requiring little change to the existing telephone network, and requiring a small amount of investment. Furthermore, a reasonable billing system can be established in which the mobile device side pays for the amount of movement by the mobile device.

[Brief explanation of drawings]

FIG. 1 is a system configuration diagram of the current car telephone system, and FIG. 2 is a system configuration diagram when the mobile communication system without separate charging area of the present invention is applied to a car phone. 1... Existing telephone network subscriber (caller), 2... End office, 3... Central office, 4... Central office, 5... General office, 6... Home AMC, 7... Terminating AMC, 8 ……
Radio line control station, 9... Radio base station, 10... Called mobile device, 11... Central station, 12... General station, 1
3...Nearest AMC, 14...Home AMC, 15
...Destination AMC, 16...Common line (CCITT No.7 signaling system), 17...Radio line control station, 18...Radio base station, 20...Subscriber memory, N1...Existing telephone network, N2... Mobile network, R..."Call back",
TX(1)...Calling range for originating subscriber, TX(10)...Mobile device billing range.

Claims (1)

[Scope of Claims] 1. An existing telephone network including a first trunk exchange with a billing function, a second trunk exchange belonging to a higher hierarchy than the first trunk exchange, and a subscriber exchange that accommodates subscriber terminals. , a plurality of mobile terminals to which subscriber numbers have been assigned, and a mobile communications switching center connected by a line to the second trunk switching center in the existing telephone network and storing subscriber information of the mobile terminals. In the mobile communication system, the subscriber number of the mobile device includes information indicating one mobile communication switching center to which the mobile device belongs, and the mobile communication switching center is responsible for all the mobile devices belonging to the mobile communication switching center. an identifier that stores the relationship between the mobile communication switching center on the called side corresponding to the current location and the subscriber number of the mobile device, and identifies the type of service of the called mobile device from the subscriber terminal; When a telephone number including a code and a subscriber number is dialed, each exchange identifies the identification code, and the telephone number is transmitted from the subscriber terminal through the subscriber exchange and the first relay exchange to the second relay exchange. The first relay exchange identifies the area where the mobile communication exchange to which the called mobile terminal belongs and prepares for billing, and further, the second relay exchange A route is connected to a mobile communications switching center connected to the second relay exchange by a line, and the mobile communications switching center inquires of the mobile communications switching center to which the called party's mobile equipment belongs. Identifying a called mobile communications switching center corresponding to the current location of the mobile device, and further connecting a route from the subscriber terminal to the called receiving mobile device via the called receiving mobile switching center, and making a call. After the start, the subscriber terminal is charged the fee from the subscriber terminal to the mobile communication switching center to which the called mobile device belongs, and the distance between the mobile communication switching center and the called mobile device and the call are calculated. A mobile communication system that does not specify a separate charging area for departure and arrival, characterized in that the mobile device on the receiving side is charged for the amount of movement of the mobile device depending on the time.