JP2002034066A - Radio information communication terminal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a radio information communication terminal in which a fact that a radio region available at a current position is detected can be recognized in real time. SOLUTION: Under initial state, a data link layer control section 2 delivers a high level to a signal terminal 41a and unlights an LED 41. Upon receiving a command from an operating section 1, the data link layer control section 2 delivers a signal requesting to search detection of a communicable radio region, i.e., a probe request signal, through a physical layer control section 3 and monitors a response signal to the probe request signal or a specific signal from the control section. Upon receiving the response signal or the specific signal, the data link layer control section 2 delivers a low level to the signal terminal 41a and lights the LED 41. When detection of a communicable radio region is disabled after detection of a radio region due to movement of a radio information communication terminal or other cause, a high level is delivered to the signal terminal 41a and the LED 41 is unlighted.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wireless information communication terminal device constituting a wireless information communication network.

[0002]

2. Description of the Related Art In general, a wireless information communication terminal device transmits a probe request of its own station, and monitors a response from a repeater or a specific frame output by a control station in response to the request to perform communication. A wireless area where communication is possible at the position is detected. Then, communication is started by using the detected wireless area. Further, when performing communication in a network configured by a plurality of wireless information communication terminal devices, the wireless information communication terminal device may perform, for example, “authentication”, “subscription” according to the degree of request in order to ensure the secrecy of communication. Logical procedures such as are performed in stages, and data communication can be performed only when all logical procedures pass. At this time, if a loss occurs in the data frame transmission / reception procedure due to transmission contention or temporary deterioration of the radio wave condition, the wireless information communication terminal apparatus retransmits the data frame after a predetermined time. Do.

[0003]

However, the above-described wireless area detection function, logical procedure step detection function, and data frame retransmission function have the data link layer control function and physical layer control function of the wireless information communication terminal. It is automatically realized by the function, and the user cannot confirm the operation by the data link layer control function and the physical layer control function unless special software is created. Further, when retransmission occurs in the wireless information communication terminal device, the time required for completing a series of communication increases as the retransmission frequency increases. In this way, the user can determine whether the wireless information communication terminal is operating as expected or at what stage of the logical procedure.
It could not be confirmed or detected until the final output was obtained or it was found that the final output could not be obtained.

[0004] Therefore, a first object of the present invention is to provide a wireless information communication terminal device capable of identifying in real time that a usable wireless area has been detected at a current position. A second object of the present invention is to provide a wireless information communication terminal device capable of identifying in real time which stage the wireless information communication terminal device is performing communication with a communication partner device in a network. . A third object of the present invention is to provide a wireless information communication terminal device capable of identifying in real time that a data frame has been retransmitted.

[0005]

According to a first aspect of the present invention, there is provided a wireless information communication terminal device for transmitting / receiving data to / from one or more communication destinations, comprising: a transmission / reception means for transmitting / receiving data to / from the communication destination. When the transmitting / receiving means performs data transmission, detecting means for detecting whether there is a wireless area available at the current position of the wireless information communication terminal device, and display means for displaying a detection result by the detecting means, With the provision, the first object is achieved.

According to a second aspect of the present invention, in the first aspect of the present invention, in order to secure the secrecy of communication in data transmission / reception with the communication partner, a plurality of “authentication”, “subscription”, and the like are used by the transmission / reception means. When a step procedure is performed, the transmitting / receiving unit further includes a confirmation unit that confirms that communication in each of the plurality of stages has been normally performed, and the display unit includes a communication unit that confirms the communication confirmed by the confirmation unit. By displaying the steps, the second object is achieved.

According to a third aspect of the present invention, in the first or second aspect of the present invention, when the data transmission / reception with the communication partner by the transmission / reception means cannot be performed normally, the data retransmission is performed by the transmission / reception means. The third object is achieved by further comprising retransmission detection means for detecting that the data has been transmitted, wherein the display means indicates that data retransmission by the transmission / reception means detected by the retransmission detection means will be performed. I do.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below in detail with reference to FIGS. FIG. 1 is a block diagram showing a configuration of a wireless information communication terminal device according to the present embodiment. The wireless information communication terminal device,
Arithmetic unit 1, data link layer control unit 2, modem unit, RF
And a physical layer control unit 3 having an antenna unit and the like, and a display unit 4. The data link layer control unit 2 controls the transmission control procedure of the data link layer protocol of the second layer of the OSI (Open System Interconnection) basic reference model, that is, the connection of the data transmission line of the wireless information communication terminal, the data link , Transmission, termination, and disconnection of the line.
In the present embodiment, the data link layer control unit 2 performs detection of a wireless area usable by the wireless information communication terminal device, detection of a logical procedure in wireless communication, and detection of retransmission of a data frame. I have.

FIG. 2 is a diagram showing a circuit configuration of the display unit. The LED (Light Emitting Diode) 41 is connected to an active low signal terminal 41a that outputs when the data link layer control unit 2 detects a usable wireless area. The LEDs 42 and 43 are one of two logical steps taken by the data link layer control unit 2 to secure confidentiality.
Active low signal terminals 42a and 43a which are sequentially output when the respective stages pass, respectively.
The LED 44 is connected to an active low signal terminal 44a that is output when a data frame is retransmitted during communication by the data link layer control unit 2.

Next, a first embodiment will be described.
First, in the initial state, the data link layer control unit 2 outputs a high level to the signal terminal 41a and turns off the LED 41. In response to a command from the arithmetic unit 1, the data link layer control unit 2 sends a signal requesting a search for a wireless area that can be communicated at the current position via the physical layer control unit 3, that is, a probe request signal. , Or a specific signal from the control station is monitored.
When receiving the response signal or the specific signal, that is, recognizing that the wireless area detection is possible, the data link control unit 2 outputs a low level to the signal terminal 41a,
D41 is turned on.

On the other hand, if it is impossible to detect an available wireless area due to movement of the wireless information communication terminal device or other causes after detection of the wireless area, the data link layer control unit 2 sets the signal terminal High level output to 41a, LED
41 is turned off. Thus, the user can check in real time whether or not the wireless information communication terminal device can perform desired communication on the display unit 4. As described above, the display unit 4 displays the data link layer control unit 2
And the detection by the data link layer control unit 2 enables the detection of the wireless area usable at the current position to be displayed so as to be visually identifiable. In addition, the user can easily know from the display unit 4 that the wireless information communication terminal device is in a usable wireless area, and quickly judge and adjust the physical installation conditions of the wireless information communication terminal device. be able to.

Next, a second embodiment will be described. First, in the initial state, the data link layer control unit 2
Outputs a high level to the signal terminals 42a and 43a,
The EDs 42 and 43 are turned off. In response to a command from the arithmetic unit 1, the data link layer control unit 2 is preset through the physical layer control unit 3 to ensure privacy with another wireless information communication terminal device (generally, a control station). First of logical procedures
Attempt to transition the operation state to the stage, and detect whether the communication at this stage is successful. If you pass this first stage,
The data link layer control unit 2 outputs a low level to the signal terminal 42a to light the LED 42. Further, the data link layer control unit 2 executes the second step, which is the next logical procedure, and attempts to transition the operation state to the second step. If the communication in the second stage is also successful, the data link layer control unit 2
A low level is output to the signal terminal 43a, and the LED 43 is turned on.

On the other hand, if any one of the stages fails, communication becomes impossible, and the data link layer control unit 2 sets the
D42 or LED43, or LED42 and LED
43 are both turned off. This allows users to
The display unit 4 allows the user to easily and in real time know that the wireless information communication terminal device is performing a logical procedure for securing confidentiality. It is possible to respond. As described above, the display unit 4 is connected to the data link layer control unit 2 and performs each step of a logical procedure performed by the wireless communication information terminal device with a communication partner in order to ensure confidentiality when performing data communication. Can be displayed so that they can be visually identified. In the present embodiment, the logical procedure for securing secrecy has been described as two steps as an example. However, the present invention is not limited to this. The logical procedure can be set at any step. It is.

Next, a third embodiment will be described. First, in the initial state, the data link layer control unit 2
Outputs a high level to the signal terminal 44a,
Turn off the light. Missing in the transmission / reception procedure with the partner device in the detection of the wireless area, the execution of the logical procedure for ensuring the secrecy, and the transmission / reception of the data frame (for example, the data frame cannot be transmitted normally, When the data link layer control unit 2 detects a lack in time, the data link layer control unit 2 outputs a low level to the signal terminal 44a to turn on the LED 44. At this time, the data link layer control unit 2 keeps the lighting state for a certain time so that the lighting state can be visually recognized sufficiently, returns the signal terminal 44a to the high level after the certain time has elapsed, and turns off the LED 44.

[0015] Thus, the user can easily determine the radio wave environment where the wireless information communication terminal device is placed, and can promptly cope with a lack of the data transmission / reception procedure. As described above, the display unit 4 is connected to the data link layer control unit 2 so that it is possible to visually recognize that retransmission of a data frame has occurred due to lack of a transmission / reception procedure in communication with a communication partner (partner device). Can be displayed.

[0016]

According to the first aspect of the present invention, in a wireless information communication terminal apparatus for transmitting / receiving data to / from one or more communication destinations, a transmission / reception means for transmitting / receiving data to / from a communication destination, and a transmission / reception means comprising: When transmitting, the wireless communication terminal device includes a detecting unit that detects whether there is a wireless area available at the current position, and a display unit that displays a detection result by the detecting unit. It is possible to easily know that the communication terminal device is in a usable wireless area, and it is possible to quickly determine and adjust physical installation conditions.

According to the second aspect of the present invention, in order to secure the secrecy of communication when transmitting / receiving data to / from a communication partner,
When a multi-step procedure such as “authentication” and “subscription” is performed by the transmitting and receiving means, the transmitting and receiving means further includes a checking means for confirming that the communication in each of the multiple steps has been normally performed. , The stage of communication confirmed by the confirmation means is displayed, so that the user can easily and in real time know that the wireless information communication terminal device is performing a logical procedure for securing confidentiality. Even if a state transition cannot be made to the final stage, it is possible to quickly respond.

According to the third aspect of the present invention, when the data transmission / reception by the transmission / reception means cannot be normally performed by the transmission / reception means, the transmission / reception means further includes a retransmission detection means for detecting that the data has been retransmitted. The means indicates that data retransmission by the transmission / reception means detected by the retransmission detection means will be performed, so that the user can easily determine the radio wave environment where the wireless information communication terminal device is placed, and respond quickly. can do.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a wireless information communication terminal device according to the present embodiment.

FIG. 2 is a diagram showing a circuit configuration of a display unit.

[Explanation of symbols]

 Reference Signs List 1 arithmetic unit 2 data link layer control unit 3 physical layer control unit 4 display unit 41, 42, 43, 44 LED (light emitting diode) 41a, 42a, 43a, 44a signal terminal

Claims (3)

[Claims] 1. A wireless information communication terminal device for transmitting / receiving data to / from one or more communication destinations, wherein: a transmission / reception means for transmitting / receiving data to / from the communication destination; A wireless information communication terminal device comprising: a detection unit for detecting whether there is a wireless area available at a current position of the wireless information communication terminal device; and a display unit for displaying a detection result by the detection unit. . 2. When a plurality of steps such as "authentication" and "subscription" are performed by a transmitting / receiving means in order to secure confidentiality of communication in data transmission / reception with the communication partner, a plurality of steps are performed by the transmitting / receiving means. 2. The communication device according to claim 1, further comprising: a confirmation unit for confirming that the communication in each of the steps has been normally performed, wherein the display unit displays the communication stage confirmed by the confirmation unit. Wireless information communication terminal device. 3. When the data transmission / reception by the transmission / reception means cannot be performed normally with the communication partner, the transmission / reception means further includes retransmission detection means for detecting that data has been retransmitted by the transmission / reception means. 3. The wireless information communication terminal device according to claim 1 or 2, wherein a message indicating that data retransmission is performed by said transmission / reception means detected by said retransmission detection means is displayed.