JP2004112844A - Wireless communication system, wireless base station, and storage medium - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wireless communication system, a wireless base station, and a storage medium which can indicate that it is out of synchronism a standby step-out by a wireless communication terminal device to a remote host to allow a prompt response. <P>SOLUTION: The wireless base station 313 sends a wireless communication status inquiry signal routine to the wireless communication terminal device 304, the wireless communication terminal device 304 sends a wireless communication status reporting signal for the wireless communication status inquiry signal to the wireless base station 313, and the wireless base station 313 sends a responseless signal indicating no response to the remote host 308 when it received no wireless communication status reporting signal from the wireless communication terminal device 304. <P>COPYRIGHT: (C)2004,JPO

Description

The present invention provides a radio communication system for managing the occurrence of out-of-synchronization when a radio communication terminal apparatus is waiting with a radio base station, a radio base station, and a radio base station for controlling the radio base station. The present invention relates to a storage medium storing a control program.

In a wireless communication system represented by a PHS (Personal Handy Phone System), a wireless communication terminal apparatus waits for a wireless base station of the own system, but may move out of the area of the wireless base station due to movement. Various management processing techniques have been proposed to cope with an out-of-area due to this movement (for example, see Patent Documents 1 and 2).

Apart from that, particularly in the case of a self-owned system, the application range of the wireless communication system is expanding, and it is frequently found that the wireless communication system is used for a communication part such as OA (Office @ Automation) equipment. . In such a case, movement rarely occurs between the device that manages the OA device having the function of the wireless base station and the OA device that has the function of the wireless communication terminal device.

However, in the case where various wireless communication systems are mixed on the floor where the OA equipment is installed, for example, a PBX (Private Branch Exchange) has a number of wireless base stations in which all extensions are wirelessly connected. There is a problem that a collision occurs between the control signals transmitted by the wireless communication terminals, and as a result, the synchronization between the wireless communication terminal apparatus and the wireless base station that are waiting is lost.

Therefore, when a call is received, a situation occurs in which the wireless communication terminal device cannot receive the incoming call. Since the wireless communication terminal device itself is an OA device, is the failure caused by the failure of the wireless communication terminal device? However, there is also a problem that it is out of synchronization, and it happened that the incoming call failed, and the cause thereof is not known.

For this reason, it is important for the wireless communication terminal device that has lost synchronization to notify the wireless base station, which is the management device, that the mobile communication device has returned to the standby state again, and to always perform processing to prompt recovery from the failure of the incoming call. It is an issue.

FIG. 9 is a diagram showing a configuration of a conventional wireless communication system, and an out-of-synchronization at the time of a standby process according to the related art will be described with reference to FIG.

In FIG. 9, reference numeral 900 denotes a management unit (management device), which is connected to the radio base stations 902a, 902b, and 902c, and each of the radio base stations 902a to 902c serves as a network (A) 901a, (B) 901b as an area. , (C) 901c. A wireless communication terminal 903 is connected to the OA device 909. The management unit 900 is connected to a management center 907 via a public network 906, and can be remotely operated and maintained from a host computer 908.

Reference numeral 904 denotes a private branch exchange (PBX: Private Branch Exchange) in which PBX wireless base stations 905a, 905b, 905c, and 905d exist. It is also assumed that the wireless communication terminal 903 is currently waiting for the wireless base station 902a.

Next, a description will be given, with reference to the sequence diagram of FIG. 10, of the processing of the standby state in the conventional wireless communication system having the above-described configuration.

The wireless communication terminal 903 is currently waiting for the wireless base station 902a (step S1000). Although the OA device 909 is fixedly installed, the broadcast signal constantly transmitted on the control channel collides between the waiting radio base station 902a and the other radio base stations, thereby causing a collision. The standby synchronization is lost (step S1001). The wireless communication terminal device 903 transmits a control channel release indication (step S1002) indicating that synchronization has been lost to the main OA device 909, and in response, the OA device 909 receives the control channel to resynchronize. An establishment request is transmitted to the wireless communication terminal device 903 (step S1003), and resynchronization of standby is established (step S1006). At this time, if there is an incoming call from the management center 907 (steps S1004 and S1005), the wireless communication terminal device 903 is out of synchronization and cannot respond to the incoming call.

In FIG. 10, step S1007 is a control channel establishment display transmitted from the wireless communication terminal device 903 to the OA device 909 side, step S1008 is an incoming call NG transmitted from the wireless base station to the management center 907, and step S1009 is , Waiting.
JP-A-9-218253 JP-A-8-294165

However, according to the above-described conventional technology, there is a problem that it is not known whether the wireless communication terminal device is out of synchronization with the wireless base station performing the standby operation or has failed due to a trouble. Depending on the environment in which the wireless communication system is installed (a situation in which there are many wireless base stations and the collision between the wireless state notification signals frequently occurs), the standby synchronization frequently occurs, and it is quite difficult. There has been a problem that it is not possible to respond to the incoming call and the possibility of a call loss of the incoming call increases. In addition, loss of synchronization necessitates re-synchronization processing, which has become a very serious problem in terms of power consumption.

Therefore, the present invention has been made in view of the above-described drawbacks of the related art, and can solve a problem caused by a loss of standby synchronization of a wireless communication terminal device, a wireless base station, and a storage medium. The purpose is to provide.

In order to achieve the above object, the present invention provides a wireless communication system for performing communication between a wireless communication terminal device and a wireless base station by wireless connection, wherein the wireless base station is constantly connected to the wireless communication terminal device. The wireless communication terminal device transmits a wireless status report signal to the wireless base station in response to a wireless status inquiry signal transmitted by the inquiry signal transmitting unit. When the wireless base station has a wireless state report signal from the wireless communication terminal apparatus in response to the wireless state inquiry signal, the wireless base station transmits the wireless state report signal to the remote host from the wireless communication terminal apparatus. Wireless response system for transmitting a no-response signal indicating that there is no response in the wireless state.

In order to achieve the above object, the present invention provides a wireless communication system for performing communication between a wireless base station that communicates with a wireless communication terminal apparatus by wireless connection, wherein the wireless base station constantly radiates wireless communication. The wireless base station has a notification signal transmitting unit that transmits a wireless notification signal for notifying a state, and the wireless base station changes a transmission pattern of a wireless notification signal that is constantly transmitted when the frequency of the missed standby exceeds a threshold value. A wireless communication system characterized by having a transmission pattern changing means.

In order to achieve the above object, the present invention provides a wireless base station that communicates with a wireless communication terminal device by wireless connection, wherein the inquiry signal constantly transmits a wireless state inquiry signal to the wireless communication terminal device. Transmitting means for transmitting a wireless status from the wireless communication terminal device to a remote host when there is no wireless status report signal from the wireless communication terminal device with respect to the wireless status inquiry signal transmitted by the inquiry signal transmitting means; And a responseless signal transmitting means for transmitting a responseless signal indicating that there is no response.

Further, in order to achieve the above object, the present invention is a wireless base station that communicates with a wireless communication terminal device by wireless connection, a broadcast signal transmitting unit that constantly transmits a wireless broadcast signal that broadcasts a wireless state, Transmission pattern changing means for changing a transmission pattern of a radio notification signal that is steadily transmitted when a frequency of missed standby of the wireless communication terminal device exceeds a threshold value. .

Further, in order to achieve the above object, the present invention provides a storage medium storing a control program for controlling a wireless base station that communicates with a wireless communication terminal device by wireless connection, wherein the control program has a routine An inquiry signal transmitting module for transmitting a wireless state inquiry signal to the wireless communication terminal device, and no wireless state report signal from the wireless communication terminal device for the wireless state inquiry signal transmitted by the inquiry signal transmitting module A responseless signal transmission module for transmitting a responseless signal indicating that there is no response from the wireless communication terminal device to a remote host in a wireless case.

Furthermore, in order to achieve the above object, the present invention provides a storage medium storing a control program for controlling a wireless base station that communicates with a wireless communication terminal device by wireless connection, wherein the control program is A notification signal transmission module for transmitting a wireless notification signal for notifying a wireless state, and changing a transmission pattern of a wireless notification signal that is steadily transmitted when the frequency of missed standby of the wireless communication terminal device exceeds a threshold value And a transmission pattern changing module.

According to the present invention, when there is no wireless state report signal from the wireless communication terminal apparatus in response to the wireless state inquiry signal, there is no response indicating that there is no wireless state response from the wireless communication terminal apparatus to the remote host. By transmitting the signal, it is possible to notify the host at the remote place of the out-of-synchronization of the standby state of the wireless communication terminal device, thereby enabling quick response.

Further, when the frequency of the out-of-synchronization of the standby state of the wireless communication terminal device exceeds the threshold value, the collision of the wireless notification signal is avoided by changing the transmission pattern of the wireless notification signal that is steadily transmitted. The device can be prevented from being out of standby synchronization.

Embodiments of the wireless communication system, wireless base station, and storage medium of the present invention will be described with reference to the drawings.

[First Embodiment]
First, a first embodiment of the present invention will be described with reference to FIGS.

FIG. 1 is a block diagram showing a configuration of a wireless communication terminal device in the wireless communication system according to the present embodiment. In the figure, 100 is a wireless communication terminal device, 101 is a control unit, and has a standby out-of-synchronization detecting unit 102, a standby return notifying unit 103, and a standby confirmation signal transmitting unit 104. Reference numeral 105 denotes a random access memory (RAM) having a standby state storage area 106 for storing information indicating a standby state of the wireless communication terminal apparatus 100 and a standby out-of-synchronization frequency storage area 107 for storing information indicating a frequency of a standby out-of-sync state. are doing. Reference numeral 108 denotes a main board interface unit, 109 denotes a connection unit with the main board, 110 denotes an antenna, 111 denotes a radio processing unit (RF), 112 denotes a channel codec unit, and 113 denotes a data communication processing unit.

FIG. 2 is a block diagram showing a configuration of a wireless base station in the wireless communication system according to the present embodiment. In the figure, 200 is a wireless base station, 201 is a control unit, and has an incoming call control unit 202, a standby recovery control unit 203, and a wireless notification signal changing unit 204. Reference numeral 205 denotes a RAM (random access memory) having a radio notification signal pattern storage area 206 and a pattern selection pointer storage area 207. Pattern 1, pattern 2, and pattern 3 are stored in the wireless notification signal pattern storage area 206. In the pattern selection pointer storage area 207, a pattern selection pointer indicating the current pattern is stored. Reference numeral 208 denotes a main board interface unit, 209 denotes a connection unit with the main board, 210 denotes an antenna, 211 denotes a radio processing unit (RF), 212 denotes a channel codec unit, and 213 denotes a data communication processing unit.

FIG. 3 is a block diagram showing the configuration of the entire wireless communication system according to the present embodiment. In the figure, reference numeral 300 denotes a first wireless communication control device, which connects a wireless communication terminal device 301 and a main board 302. A second wireless communication control device 303 connects the wireless communication terminal device 304 (corresponding to the wireless communication terminal device 100 in FIG. 1) and the main board 305. A first OA device 306 is connected to the main board 302 of the first wireless communication control device 300. A second OA device 307 is connected to the main board 305 of the second wireless communication control device 303.

# 308 is a host (host computer) installed in a remote place, 309 is a line controller, and 310 is a public network. The line controller 309 connects the host 308 and the public network 310 via the PSTN line 311. Reference numeral 312 denotes a centralized management device, which includes a wireless base station 313 (corresponding to the wireless base station 200 in FIG. 2), a line control device 314, and a main board 315. The wireless base station 313 and the line controller 314 are connected to the main board 315. The central management device 312 is connected to the host 308 via the PSTN line 316, the public network 310, the PSTN line 311 and the line control device 309.

Next, when the wireless communication terminal device 304 in the wireless communication system according to the present embodiment loses standby synchronization and receives an incoming call from the wireless base station 313 during resynchronization, the wireless communication terminal device 304 and the wireless base station 313 Will be described with reference to the sequence diagram of FIG.

First, it is assumed that the out-of-synchronization (step S401) occurs while the wireless communication terminal device 304 is waiting at the wireless base station 313 (step S400). At that time, the wireless communication terminal device 304 transmits a control channel release indication signal to the main side (step S402), and after receiving a control channel establishment request signal from the main side (step S403), starts the standby resynchronization process again. (Step S406). At this time, an incoming call is generated from the host (center host) 308 (step S404), the call is being made (step S408), and the wireless base station 313 transmits an incoming call signal to the wireless communication terminal device 304 (step S405). .

However, the wireless communication terminal device 304 cannot receive an incoming call signal from the wireless base station 313 and cannot respond, because the standby operation is being resynchronized. At this time, the wireless base station 313 performs a call holding operation (step S409), and starts a timer (N seconds) for activating the call holding operation (step S410). Then, the wireless communication terminal apparatus 304 establishes resynchronization of standby, transmits a control channel establishment display signal to the main side (step S407), and transmits a standby return signal to the wireless base station 313 (step S411). . The wireless communication terminal device 304 is waiting for the wireless base station 313 (step S412).

Upon receiving the standby return signal from the wireless communication terminal device 304, the wireless base station 313 stops the timer (N seconds) for activating the call holding operation (step S413), and restarts the held call. Then, an incoming call signal is transmitted to the wireless communication terminal device 304 (step S414). The wireless communication terminal device 304 responds to the incoming call this time (step S415), and communication is established with the host 308 via the wireless base station 313 (step S416).

Next, the operations of the wireless communication terminal device 304 and the wireless base station 313 in the wireless communication system according to the present embodiment when the standby synchronization is lost will be described with reference to the flowcharts of FIGS.

First, the operation of the wireless communication terminal device 304 will be described with reference to FIG.

5. In FIG. 5, first, during standby, detection of standby synchronization loss is detected (step S500). Then, when the out-of-synchronization is detected, re-synchronization establishment processing is immediately performed (step S501), and after a re-synchronization is established (step S502), a standby return signal is transmitted to the wireless base station 313 (step S503). ), End this processing operation and return to the standby state again.

Next, the operation of the radio base station 313 will be described with reference to FIG.

In FIG. 6, first, the wireless base station 313 transmits an incoming call signal to the wireless communication terminal device 304 (step S600). If there is no response to the incoming call signal, the incoming call is temporarily held (step S601), and a timer (N seconds) indicating the holding time is set (step S602). Next, in order to check whether or not synchronization has been established, a reception check of a standby return signal is performed (step S603). Then, when resynchronization is established, it is checked whether or not there is an incoming call on hold (step S606). If there is no incoming call on hold, this processing operation is terminated as it is, and the standby state is resumed. Return to If there is an incoming call on hold, after executing the incoming call sequence, the present processing operation is terminated, and the process returns to the standby state again.

If the re-synchronization has not been established in step S603, a time-out check of the timer (N seconds) that has been activated first is performed (step S604). When the timeout of the previously activated time (N seconds) timer does not occur, the process returns to the step S603. When the timeout of the previously activated time (N seconds) timer occurs, the process is terminated by the incoming call NG. After transmitting the disconnection notification signal to the host (center) (step S605), this processing operation ends, and the process returns to the standby state again.

As described above, according to the wireless communication system according to the present embodiment, the wireless communication terminal device 304 transmits a standby return signal to the wireless base station 313 after the standby synchronization is lost and re-synchronization is established. Thus, the wireless base station 313 can be notified of the return of the standby state. Even if there is an incoming call from the wireless base station 313 during the establishment of resynchronization, the wireless base station 313 holds a timer for waiting for resynchronization. Since the incoming call is not immediately set to NG, even if the wireless communication terminal device 304 loses the standby synchronization for some reason, the incoming call operation can be restored, which is an effect unique to the present embodiment.

[Second embodiment]
Next, a second embodiment of the present invention will be described with reference to FIG.

Note that the basic configuration of the wireless communication system according to the present embodiment is the same as that of FIGS. 1 to 3 in the above-described first embodiment, and a description thereof will not be repeated.

Hereinafter, operations of the wireless communication terminal device 304 and the wireless base station 313 when the standby synchronization is lost in the wireless communication system according to the present embodiment will be described using the flowchart of FIG.

First, while the wireless communication terminal device 304 is waiting for the wireless base station 313 (step S700), the wireless base station 313 periodically transmits a wireless status inquiry signal to the wireless communication terminal device 304 (step S701). Then, the wireless communication terminal device 304 transmits a wireless status report signal to the wireless base station 313 (step S702). Then, when the out-of-synchronization occurs on the wireless communication terminal device 304 side (step S703), the wireless communication terminal device 304 transmits a control channel release indication signal to the main side (step S705), and the main side performs re-synchronization. Is transmitted to the wireless communication terminal device 304 (step S706), and a resynchronization process for standby is performed (step S708). The wireless communication terminal device 304 transmits a control channel establishment indication signal to the main side (step S709).

Even in such a state, the radio base station 313 transmits a radio status inquiry signal to the radio communication terminal device 304 (step S704), but a radio status report signal from the radio communication terminal device 304 is not transmitted to the radio base station 313. If there is no response, a response waiting time (N seconds) timer is started (step S707). Upon returning to the standby state again (step S712), the wireless communication terminal apparatus 304 transmits a wireless state report signal to the wireless base station 313 (step S710), and the wireless base station 313 receiving the wireless state report signal transmits the wireless state report signal to the wireless base station 313. Upon recognizing that the communication terminal device 304 has returned to the normal standby operation, the response waiting time (N seconds) timer is stopped (step S711). Also in this state, the wireless base station 313 transmits a wireless state inquiry signal to the wireless communication terminal device 304 (step S713), and the wireless communication terminal device 304 correspondingly transmits a wireless state report signal to the wireless base station 313. (Step S714).

However, even if the response waiting time (N seconds) timer times out (step S715), if the radio status report signal from the radio communication terminal device 304 is not transmitted to the radio base station 313, the radio base station 313 A signal indicating no wireless status response (report) is transmitted to the host (center host) 308, and the host 308 recognizes that some trouble has occurred on the OA device side (step S716).

As described above, according to the wireless communication system according to the present embodiment, the wireless communication terminal apparatus (OA) periodically checks the wireless state between the wireless base station 313 and the wireless communication terminal apparatus 304. Even if any trouble occurs in the device (including the device) 304, the trouble can be immediately detected by the host (center host) 308 located at a remote place, and prompt action can be taken for the user. It has a form-specific effect.

[Third Embodiment]
Next, a third embodiment of the present invention will be described with reference to FIG.

Note that the basic configuration of the wireless communication system according to the present embodiment is the same as that of FIGS. 1 to 3 in the above-described first embodiment, and a description thereof will not be repeated.

In the present embodiment, when different wireless communication systems are mixed, the case where the collision of the wireless status report signal frequently occurs between the wireless base stations 313 is dealt with.

FIG. 8 is a diagram illustrating an example of a case where collision of a radio status report signal frequently occurs between the radio base stations 313 when different radio communication systems coexist.

In the case as shown in FIG. 8, the radio base station 313 is changed by changing the transmission pattern of the radio notification signal that is constantly transmitted from the radio base station 313 and includes the transmission pattern of the radio base station 313, that is, the LCCH interval value. It is possible to prevent the occurrence of collision of the wireless status report signal between the 313. For this purpose, the wireless communication terminal 304 is provided with an area for storing the frequency of standby out-of-sync (per unit time), and when the frequency of standby out-of-sync exceeds a threshold value, notifies the wireless base station 313 of the fact. The base station 313 can reduce the occurrence of the collision of the radio status report signal between the radio base stations 313 by resetting one of several types of patterns in the radio notification signal pattern area. This has an effect unique to the present embodiment in that a battery corresponding to the power consumption associated with the resynchronization on the device 304 side is not wasted.

[Fourth embodiment]
In the first embodiment described above, the case where a standby return signal is transmitted when returning from standby, and in the second embodiment described above, the case where transmission / reception of wireless status confirmation is performed is described. However, a similar effect can be obtained by exchanging wireless status confirmation using location registration instead of these.

[Fifth Embodiment]
In each of the embodiments described above, a PHS (Personal Handy Phone System) is illustrated as the wireless communication system of the present invention. However, the present invention is not limited to this, and PDC, GSM, DECT, which are other wireless communication systems, are not limited to this. , IS95, CDMAone, W-CDMA, etc., can obtain the same effect.

It should be noted that the present invention is not limited to only a system, an apparatus, and a method for realizing each of the above-described embodiments. The present invention also includes a case where the above-described embodiments are implemented by supplying a program code of software for realizing the software, and operating the various devices by the computer of the system or the apparatus according to the program code. .

In this case, the program code of the software implements the functions of the above-described embodiments, and the program code itself and means for supplying the program code to a computer, specifically, the program A storage medium storing the code is included in the scope of the present invention.

Examples of a storage medium for storing such a program code include a hard disk, a floppy (registered trademark) disk, an optical disk, a magneto-optical disk, a CD-R, a DVD, a magnetic tape, a nonvolatile memory card, a ROM, a CD-ROM, and the like. Can be used.

In addition, not only when the computer controls the various devices according to only the supplied program code, the functions of the above-described embodiments are realized, but also when the program code runs on the computer. Such a program code is also included in the scope of the present invention when the above-described embodiments are realized in cooperation with an (operating system) or other application software.

Further, after the supplied program code is stored in a memory provided in a function expansion board of a computer or a function expansion unit connected to the computer, based on an instruction of the program code, the function expansion board or the function expansion unit is stored. The present invention includes a case where a CPU or the like provided in the first embodiment performs part or all of the actual processing, and the above-described embodiments are realized by the processing.

FIG. 1 is a block diagram illustrating a configuration of a wireless communication terminal device in a wireless communication system according to a first embodiment of the present invention. FIG. 2 is a block diagram illustrating a configuration of a wireless base station in the wireless communication system according to the first embodiment of the present invention. FIG. 1 is a block diagram illustrating a configuration of an entire wireless communication system according to a first embodiment of the present invention. FIG. 4 is a sequence diagram illustrating an operation of the wireless communication system according to the first embodiment of the present invention. 4 is a flowchart illustrating an operation of the wireless communication terminal device in the wireless communication system according to the first embodiment of the present invention. 4 is a flowchart illustrating an operation of the wireless base station in the wireless communication system according to the first embodiment of the present invention. FIG. 9 is a sequence diagram illustrating an operation of the wireless communication system according to the second embodiment of the present invention. FIG. 11 is a timing chart showing collision of radio status notification signals in a radio communication system according to a third embodiment of the present invention. FIG. 2 is a diagram illustrating a configuration of a conventional wireless communication system. FIG. 11 is a sequence diagram showing an operation of a conventional wireless communication system.

Explanation of reference numerals

REFERENCE SIGNS LIST 100 wireless communication terminal apparatus 101 control unit 102 standby out-of-synchronization detecting unit 103 standby return notifying unit 104 standby confirmation signal transmitting unit 105 RAM (random access memory)
106 standby state storage area 107 standby out-of-synchronization frequency storage area 108 main board interface section 109 connection section with main board 110 antenna 111 radio processing section (RF)
112 channel codec unit 113 data communication processing unit 200 radio base station 201 control unit 202 incoming call control unit 203 standby recovery control unit 204 broadcast signal change unit 205 RAM (random access memory)
206 Notification signal pattern storage area 207 Pattern selection pointer storage area 208 Main board interface unit 209 Connection unit with main board 210 Antenna 211 Radio processing unit (RF)
212 Channel codec unit 213 Data communication processing unit 300 First wireless communication control device 302 Main board 303 Second wireless communication control device 304 Wireless communication terminal device 305 Main board 306 First OA device 307 Second OA device 308 Host (Host computer)
309 Line control device 310 Public network 311 PSTN line 312 Central management device 313 Radio base station 314 Line control device 315 Main board 316 PSTN line

Claims (6)

In a wireless communication system that performs communication between a wireless communication terminal device and a wireless base station by wireless connection,
The wireless base station has an inquiry signal transmitting unit that constantly transmits a wireless state inquiry signal to the wireless communication terminal device,
The wireless communication terminal device has a direction signal transmitting unit that transmits a wireless state report signal to the wireless base station in response to a wireless state inquiry signal transmitted by the inquiry signal transmitting unit,
If the wireless base station does not receive the wireless status report signal from the wireless communication terminal device in response to the wireless status inquiry signal, it indicates that there is no response of the wireless status from the wireless communication terminal device to a remote host. A wireless communication system comprising a no-response signal transmitting means for transmitting a no-response signal. In a wireless base station that communicates with a wireless communication terminal device by wireless connection,
Inquiry signal transmitting means for constantly transmitting a wireless status inquiry signal to the wireless communication terminal device,
When there is no wireless status report signal from the wireless communication terminal device in response to the wireless status inquiry signal transmitted by the inquiry signal transmitting means, there is no response of the wireless status from the wireless communication terminal device to a remote host. And a no-response signal transmitting means for transmitting a no-response signal representing the following. A storage medium storing a control program for controlling a wireless base station that communicates with a wireless communication terminal device by wireless connection,
An inquiry signal transmitting module that constantly transmits a wireless state inquiry signal to the wireless communication terminal device,
When there is no wireless status report signal from the wireless communication terminal device in response to the wireless status inquiry signal transmitted by the inquiry signal transmission module, there is no response of the wireless status from the wireless communication terminal device to a remote host. And a responseless signal transmission module for transmitting a responseless signal representing the following. In a wireless communication system that performs communication with a wireless base station that communicates with a wireless communication terminal device by wireless connection,
The wireless base station has a broadcast signal transmitting unit that constantly transmits a wireless broadcast signal that broadcasts a wireless state,
The wireless communication system according to claim 1, wherein the wireless base station includes a transmission pattern changing unit that changes a transmission pattern of a wireless notification signal that is constantly transmitted when the frequency of missed standby exceeds a threshold. In a wireless base station that communicates with a wireless communication terminal device by wireless connection,
Notification signal transmitting means for transmitting a radio notification signal for constantly notifying the radio state,
A wireless base station comprising: a transmission pattern changing unit configured to change a transmission pattern of a radio notification signal that is steadily transmitted when a frequency of missed standby of the wireless communication terminal device exceeds a threshold value. A storage medium storing a control program for controlling a wireless base station that communicates with a wireless communication terminal device by wireless connection,
The control program is a notification signal transmission module that constantly transmits a wireless notification signal that notifies the wireless state,
A transmission pattern changing module for changing a transmission pattern of a radio notification signal that is steadily transmitted when a frequency of missed standby of the wireless communication terminal device exceeds a threshold value.

Images