JPH08223635A - Radio communication system - Google Patents

Abstract

PURPOSE: To allow of always acquiring the latest position data of respective mobile stations by a base unit which manages the position information of mobile stations within a service area. CONSTITUTION: This system is provided with a base station 10 for performing radio control for each radio zone, mobile stations 20 existent in radio zones, and main unit 40 for performing radio control through the base station 10 arranged for each radio zone. When starting the system, the main unit 40 sends identification data for identifying the respective base stations 10 for each base station 10 and sends the identification data through the base stations 20 to the mobile stations 20 in the respective radio zones. Then, the position data stored in response to a position registering request based on the identification data from the mobile stations 20 where these identification data are received. Further, the main unit 40 sends change identification data for changing the identification data in response to a prescribed input to the respective base stations 10, sends the change identification data through the respective base stations 10 to the mobile stations 20 in the respective radio zones and requests position registration based on these change identification data to the mobile stations 20.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile station that moves within a service area, a base station that performs radio communication with the mobile station, and a main device that manages position information of the mobile station within the service area. Relates to a wireless communication system.

[0002]

2. Description of the Related Art Conventionally, in such a radio communication system, a base station arranged in each radio zone in a service area consisting of a plurality of radio zones, a mobile station moving in the service area, It has a main device that controls the base station in a centralized manner and also controls the connection between a mobile station wirelessly connected via the base station and terminals such as extension telephones, and between the mobile stations.

The main device supplies each base station with a base station identification number (hereinafter simply referred to as CS data) which is identification data assigned to each base station when the system is started up. The base station stores the CS data in a memory and includes a notification signal including the stored CS data, which is related to the current position of the mobile station and prompts a location registration request from the mobile station. To notify.

The mobile station extracts the CS data contained in the broadcast signal in response to the broadcast signal from the base station, and extracts the extracted CS data and the CS data stored and held at the previous position registration. A location registration request message containing the CS data to the main device via the base station corresponding to the stored CS data, which stores the CS data having a good reception level in the memory by comparing and detecting the respective reception levels with To notify.

The main device extracts the CS data contained in the message in response to the position registration request message, and uses it as position data based on the extracted CS data, that is, data indicating the current position of the mobile station. In addition to registering in the memory, the mobile station is notified of a location registration acceptance message for notifying the completion of registration of the location data via the base station.

Therefore, according to the wireless communication system,
Even if the mobile station moves across each wireless zone in the service area, the main device always manages the position data of each mobile station. Therefore, the incoming call to the mobile station is based on the position data. It is possible to always secure the man location of the owner of the mobile station.

[0007]

However, according to the above-mentioned conventional wireless communication system, if the position data of each mobile station managed by the main unit is lost due to some cause, Even if there is an incoming call request to the mobile station, the incoming call notification cannot be sent to the mobile station,
Unless the mobile station moves across each wireless zone, it does not make a location registration request for the mobile station and the main device cannot obtain the location data of the mobile station. .

The present invention has been made in view of the above problems, and an object of the present invention is to provide a wireless communication system in which a main unit can always obtain the latest position data of each mobile station. .

[0009]

In order to achieve the above object, a wireless communication system according to the present invention includes a base station that wirelessly controls each wireless zone, a mobile station existing in the wireless zone, and each wireless zone. And a main device wirelessly controlled via a base station arranged in the base station.The main device sends identification data for identifying each base station to each base station when the system is started up, and The identification data is transmitted to each mobile station existing in the radio zone of the base station via the mobile station, and the mobile station receives the identification data from the mobile station in response to a location registration request message based on the identification data. A wireless communication system for storing position data, wherein the main device sends modified identification data for modifying the identification data sent to the base station to each base station in response to a predetermined input. , Via the base stations to send the changed identification data to the mobile station in each radio zone, in which so as to sent the location registration request message based on the changed identification data to the mobile station.

[0010]

With this configuration, according to the wireless communication system of the present invention, when the position data of each mobile station stored in the main device is lost due to some reason, the main device is operated in response to a predetermined input. Since the changed identification data for changing each identification data is notified to each mobile station via each base station,
Even if the mobile station does not move across each radio zone, it can prompt the mobile station to send out a location registration request message, and the main unit always responds to the location registration request message by updating the latest version of each mobile station. Location data can be obtained.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A wireless communication system of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing a schematic configuration of a wireless communication system of the present invention. FIG. 2 is an explanatory diagram showing a bit configuration of CS data used in the wireless communication system.

In the radio communication system shown in FIG. 1, the base stations 10 (10a, 10b) arranged in each of the radio zones divided in the service area and the corresponding base station 10 in each radio zone. A mobile station 20 that is wirelessly connected,
It has a main device 40 that controls connection between the base stations 10 or between the base station 10 and the extension telephone 30.

The base station 10 includes a control unit 11 for controlling the entire base station 10 and a memory 12 for storing various kinds of data, for example, CS data which is identification data identified for each base station 10. have.

The mobile station 20 controls the whole mobile station 20 and various kinds of data, for example, the base station 11 corresponding to the radio zone in which the mobile station 20 exists.
The memory 22 stores 0 CS data and the like.

The main unit 40 has a base station circuit 41 for controlling connection of each base station 10, an extension circuit 42 for controlling connection of the extension telephone 30, a connection between the extension telephone 30 and the base station 10, or a base station. A communication path switch 43 that connects the stations 10 to each other and various kinds of data, for example, the mobile stations 20.
Memory 44 that stores the position data of the base station 10 and CS data of each base station 10, and a CPU 45 that controls the main device 40 as a whole.
And have. As shown in FIG. 2, the CS data has a lower 8 bit CS serial number (hereinafter, simply referred to as CS
N) and the system operation state of the upper 2 bits (hereinafter, simply referred to as SON) has a total of 10 bits.

The operation of the wireless communication system will be described with reference to FIGS. 1 to 5. FIG. 3 is a sequence diagram showing an outline when the system is started up and the position data of the mobile station 20 is registered in the wireless communication system.
FIG. 4 is an explanatory diagram showing a hex structure of CS data used in the wireless communication system.

The main device 40, when the system is started up in FIG. 3, sends a CS to each base station 10 in each wireless zone.
Data is allocated and a CS data notification message including the CS data is notified to each base station 10 (step S1).
1). At this time, the CSN in the CS data is as shown in FIG.
As shown in FIG. 5, the base stations 10 are sequentially allocated in the order of the accommodation positions of the connection circuits. For example, in the case of the base station 10a, its CSN is set to “01” (hex) and SON is set to “0” (hex). And the CS data is made “001” (hex).

Each base station 10 extracts the CS data in the message according to the CS data notification message, stores the extracted CS data in the memory 12, and periodically sends a notification signal including the CS data. To notify each mobile station 20 (step S12). That is, in step S12, taking the base station 10a as an example,
The base station 10a extracts the CS data “001” from the CS data notification message, stores the extracted CS data “001” in the memory 12, and
A notification signal including the S data "001" is periodically notified to each mobile station 20 existing in the wireless zone of the base station 10a.

The mobile station 20 performs level voting based on the broadcast signal from the base station 10a, selects the base station 10a having good reception sensitivity, and selects the CS corresponding to the selected base station 10a. A wireless zone is determined from the data “001”, the CS data “001” is stored in the memory 22, and a location registration request message including the CS data “001” is sent to the main device 40 via the corresponding base station 10. Notify (step S13).

The main device 40 responds to the location registration request message by sending the CS data "00" in the message.
1 "based on the position data of the mobile station 20 in the memory 4
4 and stores a location registration acceptance message indicating the completion of registration of the location registration request message in the base station 10
To notify the mobile station 20 via (step S1
4). Then, the base station 10a periodically notifies each mobile station 10 of the notification signal as described above (step S15).

Then, the memory 44 in the main unit 40 is next.
A case will be described where the position data relating to the mobile station 20 stored in 1 is lost. FIG. 5 is a sequence diagram showing an outline at the time of location registration of the mobile station 20 associated with the CS data change.

Generally, each base station 10 operates in step S1 of FIG.
As shown in FIG. 5, the mobile station 20 is periodically notified of the notification signal. For example, in the main device 40, the position data in the memory 44 is lost due to some factor as shown in FIG. Suppose

As shown in FIG. 5, the main device 40 dials a specific number from the extension telephone 30 to change only the SON from "0" to "1" (hex) without changing the CSN. ), Assign CS data again, and add C data containing the changed CS data.
The base station 10 is notified of the S data notification message (step S21). That is, for example, taking the base station 10a as an example, when the CS data before the change is “001” (hex) as shown in FIG. 4, the CS data after the change is “101” (hex).

The base station 10a receives the changed CS data "10" in response to the CS data notification message.
1 ”is extracted, the extracted CS data“ 101 ”is stored in the memory 12, and the CS data“ 1 ”is extracted.
The notification signal including "01" is notified to the mobile station 20 as described above (step S22).

The mobile station 20 extracts the CS data "101" contained in the broadcast signal in response to the broadcast signal from the base station 10a that is received periodically, and the extracted C
Level-boarding the S data “101” and the CS data “001” stored and held in the memory 22,
The CS data having good reception sensitivity is selected, that is, the CS data “101” is naturally selected, and the CS data “001” stored and held in the memory 44 is selected as the selected C data.
Rewriting to S data “101”, the rewritten CS
A location registration request message is sent to the main unit 40 via the base station 10a based on the data "101" (step S23).

The main device 40 stores the position data in the memory 44 in response to the position registration request message, and notifies that the position registration of the mobile station 20 is completed via the base station 10a. The location registration acceptance message is notified to the mobile station 20.

Therefore, according to the wireless communication system,
Even if the position data regarding the mobile station 20 in the main device 40 is lost, the CS data is changed from the main device 40 to each base station 10, and the changed CS data is moved from the base station 10 to each mobile station 20. By notifying the station 20,
The mobile station 20 determines that the wireless zone has changed even though the mobile station 20 is not moving, and sends the location registration request message to the main apparatus 40. Therefore, the main apparatus 40 responds to the location registration request message. Each mobile station 2
By obtaining the latest position data of 0, it is possible to quickly perform recovery after the occurrence of a failure related to the position data management, and by force, by surely grasping the latest position of each mobile station 20, the man-location function Can make a huge leap.

In the above embodiment, the base station 10a
However, it goes without saying that the same applies to base stations other than the base station 10a, for example, the base station 10b.

[0029]

According to the wireless communication system of the present invention configured as described above, when the position data of each mobile station stored in the main unit is lost due to some cause, a predetermined input is made. Since the main device notifies each mobile station of the changed identification data for changing each identification data via each base station, even if the mobile station does not move across each radio zone, The station can be prompted to send a location registration request message, and the main device can always obtain the latest location data of each mobile station in response to the location registration request message.

[Brief description of drawings]

FIG. 1 is a block diagram showing a schematic configuration of a wireless communication system of the present invention.

FIG. 2 is an explanatory diagram showing a bit configuration of CS data used in the wireless communication system of the present invention.

FIG. 3 is a sequence diagram showing a schematic operation of position registration at system startup of the wireless communication system of the present invention.

FIG. 4 is an explanatory diagram showing a hex structure of CS data used in the wireless communication system of the present invention.

FIG. 5 is a sequence diagram showing a schematic operation of location registration when changing CS data in the wireless communication system of the present invention.

[Explanation of symbols]

 10 base station 20 mobile station 40 main device

Claims (1)

[Claims] 1. A base station wirelessly controlled for each wireless zone,
A mobile station existing in the wireless zone, and a main device that wirelessly controls via a base station arranged in each wireless zone, and the main device identifies each base station when the system is started up. The data is sent to each base station, and the identification data is sent to each mobile station existing in the wireless zone of the base station via the base station, and the mobile station receiving the identification data sends the identification data. A wireless communication system for storing the position data of the mobile station in response to a position registration request message based on the identification data, wherein the main unit is configured to change the identification data to change the identification data sent to the base station. It transmits to each base station according to the input, and also causes the mobile station in each wireless zone to transmit the change identification data via each base station, and the mobile station moves to the position based on the change identification data. A wireless communication system characterized by transmitting a registration request message.