JP3132112B2 - Incoming call control method - Google Patents

Abstract

PURPOSE:To provide an incoming call method which requires no pager terminal even if it is considered that a simple portable telephone is unified with a pager terminal in a method where the portable telephone is called via a paging system is order to facilitate the incoming call through the portable telephone. CONSTITUTION:The position of a portable telephone terminal 16 is registered in a position register memory 8 of a radio base station 2 that received the radio waves by a position register request given from the terminal 16. In an incoming call state, the number of the terminal 16 is informed to each radio base station from a paging transmitter station 15. Then the station 2 storing the terminal number and the radio base stations 1 and 3 near the station 2 which received the information of the terminal from the station 2 call the terminal 16 for incoming call. Thus the terminal 16 is called by plural radio base stations and therefore the incoming call is possible even if the terminal 16 moves in a wider range. Then it is not required to previously connect another pager terminal to the terminal 16.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a method for connecting a plurality of wireless base stations having a small transmission power, which are limited to a service area having a radius of several hundred meters or less or about 100 m, to a plurality of public networks, and connecting with each wireless base station. The present invention relates to a system for effectively performing incoming call control in a system including a mobile phone that enables wireless communication between the mobile phones.

[0002]

2. Description of the Related Art

Conventionally, with respect to a mobile phone which receives a service under a radio base station in a small zone, it is determined in advance which radio base station the mobile phone exists under, as in a car telephone system. Two methods: a method of performing location registration by sending the result to a database installed on the network side using a wired line, and a method of calling a pager that is directly connected to a mobile phone terminal from a paging transmitting station. Was thought.

However, the method of performing location registration by sending location information to a database provided on the network side requires a database for storing location information, a dedicated exchange, and the like in addition to the PSTN network. However, when making a call from a general telephone to a mobile phone terminal, the database is referred once, the base station to which the line is to be connected is inquired, and then the line is connected by a dedicated exchange. In addition to pressure, the system was complicated and the capital investment was very expensive.

On the other hand, as a method of greatly reducing the facility burden on the network side, a method of calling a pager terminal directly connected to a mobile telephone terminal from a paging transmitting station has been considered, but in this case, a mobile terminal is used as a terminal. It is necessary to combine the two types of the telephone terminal and the pager terminal, which is disadvantageous not only in terms of the physical size of the terminal but also in having a terminal that is uneconomical for the user. Furthermore, in this method, the service areas of the radio waves for paging and the radio waves of the radio base station are different from each other, so that there is a problem in usability.

[0005]

An incoming call control method according to the present invention comprises a plurality of radio base stations connected to a general public network and a plurality of radio base stations.
Mobile terminals communicating with a number of wireless base stations and paging
And a paging transmission station.
System in which the plurality of wireless base stations exist in an area
In the incoming call control method used for the mobile phone terminal
Some or all of the base stations receiving the location registration request
Register the unique number assigned to the mobile phone terminal
Recording, and there is an incoming request from the public network side
And the paging transmitting station transmits
Transmitting the unique number given to the mobile phone terminal,
Wireless base station has the above number in its own location registration memory.
If there is, send the number and
Also inform the local office of the number by radio,
Receive the number from the surrounding wireless base station
The transmission is performed by radio waves that can be received by the telephone terminal .

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be described with reference to the drawings.

FIG. 1 shows a first specific embodiment of the present invention. As an example, a general public network 14 is connected to radio base stations 1 to 6.
And the telephone 13 are connected. Actually, tens of thousands to hundreds of thousands of wireless base stations, and millions of telephones
Although the system will be tens of millions, a simple example shown in FIG. 1 will be described here for ease of explanation. It is assumed that the service areas of the radio base stations 1 to 6 have a radius of several hundred m or around 100 m, respectively. Furthermore, the service area of the paging transmission station 15, as the radius R _9, the number Km
To several tens of kilometers, and wireless base stations 1 to 5 exist therein.

The present invention is characterized by the location where the location registration memory is installed, and exists in each radio base station. That is, 7 to 12 are location registration memories.
If there is a number unique to the mobile phone terminal in this memory, it is considered that the mobile phone terminal with that number may be present in the service area of the base station in which the number is registered.

In FIG. 1, location registration is performed as follows. When there is a location registration request from the mobile phone terminal 16 (T ₂ ), the radio base station 2 that has received the radio wave
The number unique to 6 is received and stored in the location registration memory 8. This completes the location registration and the public network (PST)
There is no need to send location registration information to N). Further, the capacity of the location registration memory may be a small capacity since it is sufficient only to the number of mobile phone terminals existing in the service area of the own radio base station. The telephone set 13 sends the telephone number of the telephone set 13 and a number unique to the mobile telephone terminal 16 to the paging transmitting station 15 (x ₁ ), and transmits it within a large zone with a radius R ₁₅ (x ₂ ). These numbers are transmitted by the paging transmitting station 15.
(X ₂ ). The radio base station 2 which stores a number unique to the mobile phone terminal 16 in the location registration memory among these radio base stations further receives an incoming call to the surrounding radio base stations 1 and 3 to the terminal 16. (Z ₁ ,
z ₃ ), a radio wave that can be directly received by the mobile phone terminal from the wireless base stations 1 to 3, the telephone number of the telephone 13 and the mobile phone terminal 1
6 (x ₃ ).

FIG. 1 shows a case where a target portable telephone terminal 16 exists in the service area of the radio base station 2.
Here, when the mobile phone terminal 16 is called, a response signal is returned to the wireless base station 2 (x ₄ ), and the wireless base station 2 is called.
Then, a reverse connection is made to the telephone set 13 (x ₅ ), and a communication path is set.

FIG. 2 shows a second embodiment of the present invention. The only difference from the case of FIG. 1 is that a connection device 17 is added. In this case, the line is held by the connection device 17 when the number unique to the terminal is transmitted to the paging transmitting station 15 so that the telephone 13 calls the mobile telephone terminal 16 (y ₁ ). In the following, a unique number is sent to the mobile phone terminal 16 from the paging transmitting station 15 to each wireless base station (y ₂ ), and the mobile phone terminal 16 is called from each wireless base station (y ₃ ). The process is the same as that of FIG. 1 until a response signal is returned to the wireless base station 2 (y ₄ ). Thereafter, the wireless base station 2 makes a line connection to the connection device 17 (y ₅ ), and in the 17, line (y ₁₎ and the line came through the radio base station 2 from the mobile phone terminal 16 (y ₅₎ is possible to connect to the call from the telephone 13. In this case, when making a call to the mobile phone terminal 16, the telephone set 13 waits while off-hook.

[0012]

As described above, the present invention has the following effects.

Since a general public network can be used, there is no need to have a dedicated network, the system configuration is simple, and the capital investment cost is greatly reduced.

[0014] Compared with a method of directly calling a pager connected to a mobile phone terminal using a paging system, there is no need to own a pager other than the mobile phone terminal, and the terminal can be made smaller and more economical. Moreover, since the incoming call is made to the mobile phone terminal from the range of the radio wave of the wireless base station, there is no problem for the user due to the mismatch between the service area of the paging system and the service area of the wireless base station. When a call is received from a wireless base station to a mobile phone terminal, calls are made from a plurality of wireless base stations. This has the following effects.

(3-1) It is possible to receive a call even if the portable telephone terminal moves to a service area of another nearby radio base station a certain time after the location registration.

(3-2) Since it is possible to receive a call even if the mobile phone moves to a service area of another wireless base station in the vicinity, it is not necessary to repeat the location registration of the portable telephone terminal many times and update it many times to constantly update. Therefore, the battery life of the terminal is prolonged.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a first embodiment of the present invention.

FIG. 2 is a block diagram showing a second embodiment of the present invention.

[Explanation of symbols]

 1-6 Wireless base station 7-12 Location registration memory 13 Telephone 14 Public network 15 Paging transmitting station 16 Mobile phone terminal 17 Connection device

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) H04Q ^7/ 00-7/38

Claims (1)

(57) [Claims] (1)Multiple wireless networks connected to a public network
A ground station, a mobile phone terminal communicating with a plurality of radio base stations,
A paging transmission station, wherein the paging transmission station
The plurality of radio base stations exist in an area covered by
In the incoming call control method used in the system, Part or all of the location registration request received from the mobile phone terminal
The wireless base station of the part
Number in the location registration memory of your own station. ,When there is an incoming request from the public network side, the paging
The transmitting station is assigned to the requested mobile phone terminal.
And send the unique number The plurality of wireless base stations are stored in their own location registration memories.
If the number exists, send the number and
The number is also notified wirelessly to the wireless base station, From the surrounding wireless base station receiving the notification of the number,
The number is transmitted by radio waves that can be received by the mobile phone terminal.
Incoming call control method characterized by the following: .