JPH05122138A - Method of controlling line appearance of mobile stations - Google Patents

Abstract

PURPOSE:To shorten the sending time of a radio command by alternatively sending a command in each mobile station or in each calling area in consideration of the total number of mobile stations for executing line appearance control, the positional information of the mobile stations and the total number of calling areas. CONSTITUTION:When the status change of a main wire is generated, a central processing unit(CPU) 3 sends a command to base stations 5a to 5c through a terminal control part 2 and respective base stations 5a to 5c control line appearance to respective mobile stations included in respective calling areas by means of radio commands. When the number of mobile stations requiring line appearance control is N and the number of calling areas in the system is M, the number of commands in a wireless/wired section is small in the case of N < M and control based upon an individual format is executed in each mobile station. In the case of N >= M, control based upon a simultaneous broadcasting format is executed in each calling area. Namely the individual format or the broadcasting format is alternatively adopted so that the sending frequency of radio commands is reduced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a visual display of a line status of a mobile terminal (hereinafter referred to as a mobile station) having an outside line button from an exchange housed in the system to the outside line button of the mobile station. The present invention relates to a line appearance control method for a mobile station for controlling (hereinafter referred to as line appearance).

[0002]

2. Description of the Related Art Conventionally, when a mobile station having an outside line button is accommodated in a mobile station switch of this type, the line appearance of the line appearance is controlled via an appropriate control base station. As a control method, a method of transmitting a control command for each line appearance or transmitting a control command for each area by a broadcast format command has been adopted.

[0003]

However, in the above-mentioned conventional control method, the number of calling areas to which radio waves reach and the number of mobile terminals displaying the same outside line (called line appearance number) are used for the wireless section. In some cases, the number of transmission commands and the processing load in the wired section are not efficient. For example, the number of line appearances is 5,
If the broadcast format is controlled when the number of calling areas is 100, it is necessary to transmit the command 100 times (both the wired section and the wireless section), and it is obviously more efficient to perform the control in the individual format.

On the other hand, when the number of calling areas is 10 and the number of mobile terminals requiring line appearance control is 50, obviously it is more efficient to issue a command in the batch format. Therefore, the conventional method described above has a problem in that both cases cannot be satisfied.

The present invention solves the above problems, and an object of the present invention is to provide an excellent mobile switching system capable of reducing the number of commands in wired and wireless sections.

[0006]

In order to achieve the above object, the present invention provides a wireless command for controlling a line appearance in a broadcast format, a wireless command for individually controlling a line appearance for each mobile terminal, and an exchange. Wired commands to the control base station are provided respectively, and the number of wireless commands that must be transmitted by the control method in the broadcast format and the control method in the individual format is calculated from the number of control terminals and the number of calling areas during line appearance control, This is to select and transmit a method that reduces the number of commands.

[0007]

Therefore, according to the present invention, when transmitting the control command of the line appearance from the exchange side, from the position information of the mobile station, the same appearance number and the number of wireless zones,
Determine whether to send the appearance control command for each mobile station or send the command to each zone in the transmission format,
Command transmission can be performed by a more efficient method.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows the configuration of one embodiment of the present invention. In FIG. 1, reference numeral 1 is an exchange switch for exchanging voice data, 2 is a terminal control unit for controlling a base station for exchanging data with the exchange switch 1,
The exchange switch 1 and the terminal control unit 2 are controlled by the central processing unit 3. Reference numerals 4a to 4c denote one wireless calling area. In each of the calling areas 4a to 4c, base stations 5a to 5c connected to the terminal control unit 2 are arranged, and further in the calling area 4a, a base station 5a. There are mobile stations 6a to 6c for transmitting and receiving radio commands to and from the base station 5b in the calling area 4b.
d, 6e, and the base station 5 in the calling area 4c.
There are mobile stations 6f-5i that send and receive wireless commands to and from c.

Reference numeral 7 denotes a memory for exchanging processing, particularly for transmitting a radio appearance command, which is connected to the central processing unit 2. In the memory 7, "line appearance data" indicating which button of which mobile station is registered with which button, and "zone number data" indicating the number of wireless zones (the number of calling areas in the system). , "Location information" that stores in which zone each mobile station is located.

Next, the operation of the embodiment will be described. When there is a change in the state of the central office line, the central processing unit 3 sends a command to the base stations 5a to 5c through the terminal control unit 2, and each of the base stations 5a to 5c has its own calling area. The line appearance is controlled by the wireless command to the mobile stations 6a to 6i.

Here, the line appearance control in the individual form is to obtain the mobile station displaying the line from the line appearance data in the memory 7 when the state of the line changes, and further, to determine the mobile station of the mobile station. The position information is obtained from the position information of each mobile station in the memory 7, and the target mobile stations among the mobile stations 6a to 6i are controlled by the number of mobile stations that need to be controlled via the base stations 5a to 5c corresponding to each position. This is a method of sending a command to the destination.

The line appearance control based on the broadcast format is a method of transmitting commands as many as the number of target calling areas (three in FIG. 1) in which the target mobile station is located when the line state changes. ..

At this time, assuming that the number of mobile stations required to control the line appearance is N and the number of calling areas in the system is M, simply if N <M, the command in the wireless / wired section is used as the first embodiment. Since the number is small, each mobile station is controlled by an individual format. On the other hand, if N ≥ M, control by the broadcast format is performed simultaneously for each calling area. That is, the individual format or the broadcast format is selectively performed so that the number of times the wireless command is transmitted is reduced.

In the above embodiment, the average time required to calculate the mobile station that needs the line appearance control and the current position, that is, the search average time of the command transmitting mobile station is S, and the command transmission in the individual format is performed. If the individual transmission time required is n, the simultaneous transmission time required for command transmission in the broadcast format is m, and these are set in advance in the memory as system data, then as a second embodiment, when S + N × n <M × m, , Control by individual format is performed, and conversely, if S + N × n ≧ M × m, control by broadcast format is performed. That is, the individual format or the broadcast format is selectively performed so that the total transmission time of the wireless command is reduced.

As a result, not only the number of commands in the wireless section or the command transmission time but also the load on the exchange can be reduced.

[0016]

As is apparent from the above-described embodiment, the present invention makes line appearance command transmission a zone configuration,
Since it is decided according to the time whether it is performed in the broadcast format or individually according to the registered contents of the line appearance, the position information, etc., it is possible to reduce the number of commands in the wired and wireless sections. ..

[Brief description of drawings]

FIG. 1 is a schematic block diagram of a mobile station communication system using a line appearance control method for a mobile station according to the present invention.

[Explanation of symbols]

 1 Exchange Switch 2 Terminal Control Unit 3 Central Processing Units 4a-4b Calling Areas 5a-5c Base Stations 6a-6i Mobile Station 7 Memory

Claims (4)

[Claims] 1. A mobile station exchange, a plurality of base stations connected to the mobile station exchange, and a line appearance controllable mobile station that performs wireless communication in a calling area formed by each base station. A communication system that performs line appearance control for the mobile station by a radio command from the mobile station switch, wherein the mobile station switch sends the radio command to be sent when the station line state changes. A line appearance control method for a mobile station, which is selectively performed for each station or for each calling area so that the number of times the wireless command is transmitted is reduced. 2. The mobile station switch compares the total number N of target mobile stations to be subjected to the line appearance control with the total number M of target paging areas in which the target mobile station is located when the line state of the mobile station changes. Then, when N <M, the wireless command is individually transmitted to each of the target mobile stations to perform the line appearance, and when N ≧ M, each of the target calling areas is performed. 2. The line appearance control method for a mobile station according to claim 1, wherein the wireless command is sent all at once to perform the line appearance. 3. A mobile station exchange, a plurality of base stations connected to the mobile station exchange, and a line appearance controllable mobile station that performs wireless communication in a calling area formed by each base station. A communication system that performs line appearance control for the mobile station by a radio command from the mobile station switch, wherein the mobile station switch sends the radio command to be sent when the station line state changes. A line appearance control method for a mobile station, which is selectively performed for each station or for each calling area so that the total transmission time of the wireless command is reduced. 4. The mobile station switch sends a radio command to the mobile station for a search time S to search for a total number N of target mobile stations to be subjected to the line appearance control when the line status changes. The time n, the total number M of target paging areas in which the target mobile station is located, and the time m for sending the wireless command to the paging area, and if S + N × n <M × m, then: The wireless command is individually sent to each of the target mobile stations to perform the line appearance, and when S + N × n ≧ M × m, the wireless command is simultaneously sent to each of the target calling areas. The line appearance control method for a mobile station according to claim 3, wherein the line appearance is performed by performing the line appearance control.