JPH01253327A - Radio calling system - Google Patents

Abstract

PURPOSE:To realize the calling over a wide range by calling a central base station of another zone to register its position in a memory of a central base station in a home service area in case a subscriber having a paging receiver moves to said another zone. CONSTITUTION:A paging receiver 11 belonging to a zone A1 registers previously its existing position information into a subscriber memory device 17 of a central station A7 and uses this station A7 as its home station. When the receiver 11 moves to a zone B2 from the zone A1, a local switch device 6 decides a paging network connection state with input of '00XY' from a telephone set B4 which is capable of transmission of a PB signal. Then the device 6 switches the connection to a central base station B8 and sends a subscriber No, an identification No and a position code of each central base station to the station A7. A CPU 15 of the station A7 changes the existing position information for the receiver 11. Thus it is possible to call the receiver 11 out of the zone B2.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a radio paging system.

[Conventional technology]

As shown in FIG. 5, the configuration of an example of a conventional radio paging system includes a telephone 3a, a local switching device 5, a central base station 7a,
It is composed of a wireless base station 9 and a paging receiver 11.

The central base station 7a is composed of a paging switching device 13a and an encoding device 19.

When the subscriber number of the paging receiver 11 to be called is dialed from the telephone 3a, the local switching device 5 determines from the subscriber number that it is a paging call, and the output is sent to the paging exchange bag of the central base station 7a. Sent to W 13 a. The switching device 13a checks whether the subscriber is correct, and if the subscriber is correct, it broadcasts to the caller that the caller is currently being called, and if the subscriber is incorrect, it broadcasts that fact.

If it is correct, the encoding device 19 converts the subscriber number into a selective calling code and sends it to the radio base station 9.

The wireless base station 9 makes a selective call code wireless and transmits the call.

[Problem to be solved by the invention]

In the conventional radio paging system described above, the paging area of the central base station is the range that radio waves sent out from the radio base stations connected to the central base station reach. It is necessary to increase the number of wireless base stations connected to a central base station, and if the calling area per central base station is covered widely, the number of subscribers will increase and the base station equipment will increase. It is necessary to emit radio waves all at once, which has the disadvantage of causing radio wave interference.

[Means to solve the problem]

The radio paging system of the present invention includes a local switching device that connects a paging receiver to a subscriber telephone that calls the paging receiver, a radio base station that transmits a paging radio signal to the paging receiver within a home service area, and the local switching device. and a central base station that encodes a selective paging signal from and transmits it to the wireless base station, wherein the central base station has a predetermined zone as its home service area and this home service area. Location information within the home service area of the first paging receiver registered as a service area and location information within another zone, and location information of the second paging receiver registered in the other zone. a storage device in which location information within the home service area is stored; and a storage device that stores location information within the home service area;
or an encoding device that creates a selective calling code from the subscriber number of the second paging receiver and transmits it to the wireless base station in the home service area, a central base station that manages the other zone, and a data line. the location information of the first paging receiver in the other zone and the location information of the second paging receiver in the home service area can be transmitted and received via the local switching device; It has a switching device for making outgoing call connections to subscriber telephones, and a central control device for controlling the storage device and the switching device.

〔Example〕

Next, the present invention will be explained with reference to the drawings.

Fig. 1 is a system configuration diagram showing one embodiment of the present invention;
The figure shows the flow of signals when registering the location of a paging receiver in this embodiment, and Figure 3 shows the flow of signals when a paging receiver outside the home area is called from a telephone in the home area in this embodiment. FIG. 4 is a diagram showing the flow of signals when a paging receiver outside the home area is called from a telephone outside the home area in this embodiment.

In FIG. 1, the present embodiment is configured to include equipment in zone A1, equipment in zone B2, and a data line 12 connecting zone A1 and zone B2, and the equipment in zone A A local switching device 5 connects the telephone A3 that calls the receiver 11, a wireless base station 9 transmits a paging radio signal to the paging receiver 11 in the home service area, and a selective paging signal from the local switching device 5 is connected to the telephone A3 that calls the receiver 11. A central base station A7 encodes the data and transmits it to the wireless base station 9, and the central base station A7 has a predetermined zone A1 as its home service area and a paging receiver registered as this home service area. a subscriber memory device 17 in which location information within the home service area of the paging receiver 11a and location information within the zone B2 of the paging receiver 11a registered in the zone B2 are stored; , paging receiver 11 within the home service area. A coding device 19 that creates a selective calling code from the subscriber number of lla and transmits it to the wireless base station 9 in the home service area, and a central base station B8 that manages zone B2 and the zone B2 via the data line 12. A switching device 13 that is capable of transmitting and receiving location information of the paging receiver 11 in the home service area and location information of the paging receiver 11a within the home service area, and connects with the local switching device 5 to make a call connection to the subscriber telephone A3. and subscriber memory device 17
and a central processing unit 15 that controls the switching equipment 13, and the equipment in zone B2 is a telephone B4, a local switching equipment 6, and a central processing unit 15 that controls the switching equipment 13. A central base station B8 as its area, a wireless base station 10, and a paging receiver 11 registered with the central base station B8 as its home service area zone B2.
a, and the central base station B8 is the central base station A7.
an encoding device 20 connected to the wireless base station 10 in the same manner as
subscriber memory device 18 and local switching device 6. The system includes a switching device 14 connected to the data line 12 and the encoding device 20, and a central processing unit 16 controlling the subscriber memory device 18 and the switching device 14.

Note that POt 21 is a local switching device 5. General public line network with local switching equipment 6 and central base station A7. Central base station B8
It is a connection point with a certain paging network.

Next, the operation of this embodiment will be explained.

In the following explanation, the connection number from the general public line network to the paging network is...
ooxy Paging subscriber number: ABC-DEFG, subscriber location registration number: 12122, the first digit (A) or two digits (AB) of the subscriber number is the area designation number.

First, a case where telephone A3 calls paging receiver 11 registered in zone A1 will be described.

The paging receiver 11 that joins the zone A1 registers its location information in the subscriber memory device 17 of the central base station A7 in advance, and makes the central base station A7 its home station.

When the paging receiver 11 is located in zone A1, when rOOXYJ + rABCDEFG is input from the telephone A3, the local exchange '5 dials the dial number roOX.
YJ is identified and rABcDEFGJ is sent to central base station A7. In this case, telephone A3 is a multi-frequency (hereinafter referred to as PB)
Using a telephone capable of sending a signal, dial roOXYJ, hear the second tone from local exchange 5, and then dial rABCDEFGJ. Local exchange 5 receives the dialed telephone number rABCDEFG.

The exchange device 13 identifies the home station of the paging receiver 11 from the first "A" or rABJ from the local exchange bag W5, and retrieves the location information from the subscriber memory device 17 under the control of the central processing bag W,15. It reads out, determines that it is located in zone A1, and sets the subscriber number rABcDEFG.
is sent to the encoding device 9. The encoding device 19 converts the subscriber number "ABCDEFGJ" into a selective calling code and sends it to the radio base station 9. The radio base station 9 sends it by radio. The paging receiver 11 recognizes that it has been called. Check and make a ring tone.

Next, the paging receiver 11 moves from zone A1 to zone B.
2, the registration operation of the paging receiver 11 will be explained using both FIG. 1 and FIG. 2.

When "00XY" is input from telephone B4 capable of transmitting PB signals, local switching equipment 6 determines that it is connected to a paging network, connects to central base station B8, and transmits a second tone. When B4 dials "IZIZ2", central base station B8 determines from rlZ, Z, and J that it is a location registration request, and sends out a guide (broadcast or tone signal) to send out a paging subscriber number. . Telephone B4 that received this has subscriber number rABCDEFGJ+
Dial and enter your PIN number. The central base station B8 identifies the home station from the first 1 or 2 digits of the subscriber number, determines that it is a paging receiver 11 for registration of another home station, and sends the subscriber via the data line 12. The user number, password, and location code determined for each central base station are sent to the central base station A7.

The central processing unit 15 of the central base station A7 compares the subscriber number and the PIN number, and if correct, changes the current location information for the paging receiver 11 corresponding to the subscriber number in the subscriber memory device 17. 0 location registration complete. After, central processing unit 1
5 sends a completion signal to the central base station B8 via the replacement W 13 and the data line 12, and the central base station B8 sends a location registration completion notification (broadcast or tone) to the telephone B4.

Next, the paging receiver 11 uses zone AI (home station)
Paging receiver 11 when located in outside zone B2
The operation when calling is explained using FIG. 1 and FIG. 3 together.

When telephone A3 dials rooxy, , it connects to the paging network and receives a second dial tone,
Dial in the subscriber number rABCDEFG. The central base station A7 receives the first digit or two of the received subscriber number.
If it is identified by the digits and it is the own home station, the location is read from the subscriber memory device 13 of the central base station A7, and when the central processing unit 15 determines that the paging receiver 11 is absent within the zone A1, it is replaced. It controls the device 13 and sends the subscriber number via the data line 12 to the central base station B8. The encoding device 20 of the central base station B8 converts the sent subscriber number into a selective calling code and sends it to the wireless base station 10.
Send to. When the central base station B8 starts the read operation, a paging operation signal is sent to the central base station A7 via the data line 12, and the central base station A7 sends a paging operation guidance (broadcast or talkie) to the telephone A3.

Next, the paging receiver 11 is in zone At (home station)
The operation when the caller moves to outside zone B2 and makes a call from telephone B4 in zone B2 will be explained using FIG. 1 and FIG. 4 together.

Phone B4 (a phone that can send PB signals) is roo
When you dial xyJ, you connect to the paging network and when you receive the second dial tone, you receive the subscriber number rABC.
Dial in DEFGJ. The central base station B8 identifies the home station from the received subscriber number, and if it is determined that the paging receiver 11 does not have the central base station B8 as its home station, it sends the subscriber number and the code number of the central base station B8 as data. It is transferred to the central base station A7 via line 12.

At the central base station A7, paging receiver 1 is sent from the subscriber number.
1 and transfers the subscriber number to the central base station B8 located within the area. The encoding device 20 of the central base station B8 converts the transferred subscriber number into a selective calling code and sends it to the radio base station 10. When the central base station B8 starts the calling operation, a calling operation signal is sent to the central base station A7 via the data line 12, and from the central base station A7 to the central base station B8 of the telephone 2B connected to the caller. When central base station B8 receives a call signal number, telephone B
4. Sends the calling room (broadcast or tone) to 4.

〔Effect of the invention〕

As explained above, the present invention has a storage device in the central base station, so that even if a subscriber with a paging receiver moves to another zone outside the registered home service area, the subscriber can By calling the central base station of the zone and registering the location in the storage device of the central base station of the home service area, it becomes possible to make calls over a wide range without increasing the equipment per central base station. This has the effect of stopping unnecessary calls in unnecessary areas.

[Brief explanation of the drawing]

Fig. 1 is a block diagram showing an embodiment of the present invention, Fig. 2 is a diagram showing the signal flow in the case of location registration of a paging receiver in this embodiment, and Fig. 3 is a diagram showing the home area in this embodiment. Figure 4 is a diagram showing the flow of signals when a telephone calls a paging receiver outside the home area. FIG. 5, which is a flowchart, is a diagram showing an example of a conventional radio paging system. 1...Zone A, 2...Zone B, 3...Telephone A, 3a...Telephone, 4...Telephone B, 5, 6...
- Local network switching equipment, 7...Central base station A, 7a...
central base station, 8... central base station B, 9.10... wireless base station, 111 ], a... paging receiver,
12...Data line, 13.13a, 14...Switching device, 15.16...Central processing unit, 17.18...
・Subscriber memory device, 19.20... Encoding device, 2
1... Connection point between general public line network and paging network (PO
I).

Claims (1)

[Claims] A local switching device connects a subscriber telephone that calls a paging receiver, a radio base station that transmits a paging radio signal to a paging receiver within a home service area, and encodes a selective paging signal from the local switching device. and a central base station that transmits data to the wireless base station, the central base station has a predetermined zone as its home service area, and this home service area is registered as its service area. Location information within the home service area of the first paging receiver and location information within the other zone, and location information within the home service area of the second paging receiver registered in the other zone. Creating a selective calling code from a storage device storing information and a subscriber number of the first or second paging receiver in the home service area and transmitting it to the wireless base station in the home service area. and a central base station that manages the other zone, and position information of a first paging receiver in the other zone and a second paging receiver in the home service area via a data line. a switching device that is capable of transmitting and receiving location information of the local switching device and connects to the local switching device to make a call connection to the subscriber telephone; and a central control device that controls the storage device and the switching device. A wireless paging system characterized by being configured as follows.