JPH08331626A - Radio communication system - Google Patents

Abstract

PURPOSE: To provide the radio communication system with which a radio channel can be effectively utilized by decreasing useless radio channel connection. CONSTITUTION: A radio terminal registers communication possibility to a radio base station 100 based on its own state change. When a call to be terminated to this radio terminal is generated, while referring to this registered communication possibility, the radio base station 100 judges whether connecting the radio channel to the relevant radio terminal or not so that the useless connection of the radio channel can be prevented.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to telephones, facsimiles,
The present invention relates to a wireless communication system capable of accommodating various wireless terminals such as data terminals.

[0002]

2. Description of the Related Art In a conventional microcell type wireless communication system (system cordless telephone, mobile telephone, etc.), when an incoming call to a wireless terminal in a communication-disabled state occurs, the wireless base station communicates with the wireless terminal. After the wireless line connection between the two, the upper side communication protocol control of the calling side is performed via the wireless line, so that the calling side recognizes that the incoming call is impossible for the first time.

[0003]

Therefore, in the above-mentioned conventional example, since it is not possible to determine whether or not the incoming call target wireless terminal can communicate without connecting a wireless line,
Frequent invalid wireless connection.

An object of the present invention is to provide a wireless communication system capable of reducing invalid wireless line connections and effectively utilizing the wireless lines.

[0005]

The present invention provides a radio base station connected to a telecommunication line, and a radio communication terminal connected to the radio base station via a radio line in a radio zone formed by the radio base station. In a wireless communication system having: a processing unit for registering status information indicating whether the wireless terminal can communicate with itself in a registration unit of the wireless base station; and the registration unit when the wireless base station originates an incoming call to the wireless terminal. See
It is characterized by further comprising control means for determining connection / non-connection of a wireless line to the wireless terminal.

[0006]

According to the present invention, the wireless terminal registers whether communication is possible or not in the wireless base station based on its own status change.
When an incoming call is generated to the wireless terminal, the wireless base station refers to the communication availability registration, determines whether or not the wireless line is connected to the wireless terminal, and prevents the invalid wireless line from being connected.

[0007]

1 is a schematic diagram showing a system configuration including a wireless data terminal in a personal handyphone system (hereinafter referred to as PHS) according to a first embodiment of the present invention.

In FIG. 1, PHS is a radio base station 10 connected to a wired communication network 10 which is an example of a telecommunication line.
0 and various PHS wireless terminals 101 to 104 connected to this wireless base station 100 by wireless lines.

Specifically, the wireless terminal 101 is a wireless telephone and the wireless terminal 102 is a wireless printer. The wireless terminal 103 is a wireless facsimile, and the wireless terminal 10
Reference numeral 4 is a wireless personal computer (PC).

The wired communication network 10 is provided with a PC 11 as a data terminal, a facsimile 12 and the like.

FIG. 2 is a flow chart showing an operation of registering status information indicating communication availability, which is repeatedly activated in the standby state of the PHS wireless terminal.

For example, in the wireless facsimile 103, the wireless printer 102, etc., communication is disabled when the paper runs out, ink runs out, etc., and in the wireless PC 104, it is controlled whether communication is possible according to the program being processed.

Each PHS wireless terminal determines its own communication availability status (201) in the standby state. Then, when there is no change in the previous determination and the communication availability state, one processing unit is ended as it is. In addition, when there is a change in the communication enable / disable state, for example, when the communication is disabled due to the paper shortage or the like, the wireless line is connected to the wireless base station 100 (202), and that effect is described above. Registration (203) in the communication availability registration table of the wireless base station is performed, then the wireless line is disconnected (204), and one processing unit is completed.

Further, since this processing is repeatedly activated in the standby state, even if the incommunicable element is canceled due to, for example, paper replenishment, this processing allows that fact to be registered by the wireless base station. Registered in the table.

FIG. 3 is a flowchart showing an incoming call acceptance operation that is repeatedly activated in the PHS radio base station.

When the incoming call to the PHS wireless terminal is accepted (301), the wireless base station refers to its own location information registration table (302, 303).
The process is terminated as it is. If there is registration, it refers to its own communication availability registration table (304, 305), and if communication is possible, it connects the wireless line to the PHS terminal and performs incoming call control processing (S306). If the communication is not possible, the wireless line is not connected, and the incoming connection unavailability process (307) of notifying the sender of the reason is performed.

For example, when an incoming call is made to the wireless printer 102 or the wireless facsimile 103 from the PC 11 or the facsimile 12 and the incoming call to the called wireless data terminal is impossible, a failure notification is sent to the PC 11 or the facsimile 12 by radio. The base station 100 returns it as a response to the incoming call.

As described above, according to this embodiment,
By holding and managing the connection availability information of the PHS terminal in the wireless base station having the location registration information of the PHS terminal, if communication is not possible at the time of the incoming call to the PHS terminal, the incoming connection cannot be made by the wireless base station alone. Since the time processing is performed, it is possible to prevent unnecessary wireless line connection and reduce the communication traffic of the wireless line.

In the first embodiment described above, the PHS
Changes in the communication availability status of the wireless terminal, such as the occurrence of trouble such as paper out, ink out, the status of the program running PC, etc.
Although the event generated from the device has been used, it can be applied by the operation of the terminal user as the second embodiment of the present invention.

For example, when the user who has the PHS wireless telephone 101 does not want to receive a telephone call at a conference or the like, by changing the connection availability state of the terminal according to the operation of the user,
By realizing the rejection of the incoming call and notifying the calling party of the rejection of the incoming call, there is an effect that the existence of the called party and the normal operation of the called terminal are recognized.

In addition, as a third embodiment of the present invention, in addition to the function of the first embodiment, by providing a forced incoming call processing for recognizing an incoming call even when communication is impossible, an emergency call or a remote device is provided. It is possible to provide an advantageous system when performing maintenance.

FIG. 4 is a flow chart showing an incoming call acceptance operation of the wireless base station when such a forced incoming call process is added.

As shown in the figure, determination of the position registration status (30
By adding the process of determination (308) to the incoming call type after 3), if it is a forced incoming call, it is possible to immediately start the incoming call connection process without determining whether communication is possible.

As a result, it becomes possible to realize the connection of the wireless line even for the wireless terminal in the communication disabled state.

[0025]

According to the present invention, a wireless terminal registers its own communication availability status in the wireless base station so that when a call is made to the wireless terminal, the communication availability registration is referred to, It is possible to determine whether or not the wireless line is connected to the terminal and prevent the invalid wireless line from being connected, and by providing a forced call-in mode separately for emergencies and maintenance, the wireless channel It has the effect of enabling effective use.

[Brief description of drawings]

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

FIG. 2 is a flowchart showing the operation of the above embodiment.

FIG. 3 is a flowchart showing the operation of the above embodiment.

FIG. 4 is a flowchart showing the operation of another embodiment of the present invention.

[Explanation of symbols]

 10 ... Wired communication network, 11 ... Personal computer, 12 ... Facsimile, 100 ... Wireless base station, 101 ... Wireless telephone, 102 ... Wireless printer, 103 ... Wireless facsimile, 104 ... Wireless personal computer.

Claims (5)

[Claims] 1. A wireless communication system having a wireless base station connected to a telecommunication line and a wireless communication terminal connected to the wireless base station by a wireless line within a wireless zone formed by the wireless base station, A processing unit that registers status information indicating whether or not the wireless terminal can communicate with itself in a registration unit of the wireless base station, and the wireless base station refers to the registration unit when an incoming call to the wireless terminal occurs, and A wireless communication system comprising a control means for determining connection / non-connection of a wireless line. 2. The wireless communication system according to claim 1, wherein the status information is registered when the status of the wireless terminal changes. 3. The wireless communication system according to claim 1, wherein the status information is registered together with the registration of the position information when the status of the wireless terminal changes. 4. The wireless communication system according to claim 2, wherein the status information of the wireless terminal can be changed by a user operation. 5. The device according to claim 1, further comprising means for recognizing a forced incoming call for connecting a wireless line without performing connection availability determination by registering the status information in the wireless base station. A wireless communication system.