JP2008010944A - Wireless communication apparatus and wireless communication method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To accurately comprehend communication quality with a desired communication opposite party. <P>SOLUTION: The wireless communication apparatus acquires identification information from a communication opposite party in advance, stores the identification information, reads identification information from a notice signal received during wireless communication, calculates the communication quality when the read identification information is the same as the stored identification information, and displays the result so as to accurately comprehend the communication quality with the desired communication opposite party. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a wireless communication device, a wireless communication method, a computer program, and a recording medium, and more particularly to a technique suitable for use when displaying communication quality.

  In wireless communication, it is difficult to visually understand the communication status, and notifying the user of the communication status (communication quality) is important for improving the convenience of the user. Conventionally, communication quality can be determined from RSSI (received electric field strength) or the like when a packet is received, communication quality is obtained from a received data packet during data communication, and communication quality is obtained from a notification signal such as beacon during communication idle.

  As a communication quality display method, for example, as shown in “Wireless communication adapter” proposed in Patent Document 1, the received signal intensity is set to the emission color, the number of lights, the emission intensity, the blinking state, etc. Thus, a method for indicating communication quality to a user has been proposed.

JP 2004-88283 A

  In a network configuration in which a base station exists, data transmission / reception is always performed via the base station. Thus, it is possible to determine the communication quality from the received data packet during data communication, and to obtain the communication quality from a notification signal such as beacon periodically transmitted from the base station even during communication idle.

  On the other hand, even in an Adhoc network that is peer-to-peer communication between devices that do not have a base station, communication quality with an actual communication partner can be determined from received data packets during data communication. However, during communication idle, a notification signal such as beacon is randomly transmitted between a plurality of devices, so there is a possibility of calculating communication quality using a notification signal from a device that is not the actual communication partner. . For this reason, in the idle state before actually performing data communication, there has been a problem that accurate communication quality with the original communication partner cannot be determined.

  Furthermore, the beacon frame defined in IEEE802.11 does not contain information for identifying the transmission source, and it is impossible to identify the actual communication partner from the beacon frame and calculate the communication quality. there were.

  The present invention has been made in view of the above-described problems, and an object of the present invention is to make it possible to accurately grasp the communication quality with a desired communication partner.

The wireless communication device according to the present invention includes: a generating unit that generates identification information for identifying a partner with which communication is actually performed in an Adhoc network that directly communicates between a plurality of wireless communication devices; Transmitting means for embedding the identification information in the notification signal, transmitting means for receiving the notification signal transmitted from the plurality of wireless communication devices, and reading the identification information embedded in the notification signal received by the receiving means Specifying means for specifying the wireless communication device that has transmitted the received notification signal from the identification information; and calculating means for calculating communication quality when the communication partner specified by the specifying means is an actual communication partner; It is characterized by having.
Another feature of the wireless communication device of the present invention is that, in an Adhoc network that performs direct communication between a plurality of wireless communication devices, a generation unit that generates identification information for identifying a party that actually performs communication, Generated by exchange means for exchanging identification information among the plurality of wireless communication devices, storage means for storing identification information exchanged by the exchange means in a storage medium, identification information stored in the storage medium, or generation means One of the pieces of identification information selected, transmitting means for transmitting the selected identification information embedded in a notification signal, receiving means for receiving a notification signal transmitted from the wireless communication device, and notification received by the receiving means When the identification information is read from the signal and the identification information is the same as the identification information exchanged between the plurality of wireless communication devices, the communication quality is calculated. It includes means, and display means for displaying on the display unit the result of the calculation by said calculating means.
Another feature of the wireless communication device according to the present invention is that, in an Adhoc network that performs direct communication between a plurality of wireless communication devices, wirelessly between a generating unit that generates identification information and the plurality of wireless communication devices. Establishing means for establishing communication; transmitting means for transmitting identification information generated by the generating means embedded in a notification signal; receiving means for receiving notification signals transmitted from the plurality of wireless communication devices; and the receiving means Reading means for reading identification information from the notification signal received by the calculation means, calculation means for calculating communication quality from the notification signal including identification information read by the reading means, communication quality calculated by the calculation means, and the identification information Updating means for updating the communication quality table showing the relationship between the communication quality table and the communication quality table updated by the updating means And a display means for displaying the contents.

The wireless communication method of the present invention includes a generation step of generating identification information for identifying a party that actually performs communication in an Adhoc network that performs direct communication between a plurality of wireless communication devices, and the identification generated in the generation step A transmission step of transmitting information embedded in a notification signal; a reception step of receiving notification signals transmitted from the plurality of wireless communication devices; and reading identification information embedded in the notification signal received in the reception step; A specifying step for specifying the wireless communication device that has transmitted the received notification signal from the identification information; and a calculating step for calculating communication quality when the communication partner specified in the specifying step is an actual communication partner. It is characterized by having.
Another feature of the wireless communication method of the present invention is that, in an Adhoc network that performs direct communication between a plurality of wireless communication devices, a generation step of generating identification information for identifying a partner that actually performs communication, An exchange step for exchanging identification information among the plurality of wireless communication devices, a storage step for storing the identification information exchanged in the exchange step in a storage medium, and an identification information stored in the storage medium or generated in the generation step One of the identification information selected, a transmission step of embedding the selected identification information in a notification signal, a reception step of receiving a notification signal transmitted from the wireless communication device, and a notification received in the reception step The identification information is read from the signal, and the identification information is the same as the identification information exchanged between the plurality of wireless communication devices. And in the case has a calculation step of calculating a communication quality, and a display step of displaying a result calculated in the calculating step.
Another feature of the wireless communication method of the present invention is that, in an Adhoc network that performs direct communication between a plurality of wireless communication devices, a generation step of generating identification information and wireless communication between the plurality of wireless communication devices. A establishing step for establishing communication; a transmitting step for transmitting the identification information generated in the generating step embedded in a notification signal; a receiving step for receiving a notification signal transmitted from the plurality of wireless communication devices; and the receiving step A reading step of reading identification information from the notification signal received in step, a calculation step of calculating communication quality from the notification signal including the identification information read in the reading step, the communication quality calculated in the calculation step, and the identification information Update step to update the communication quality table showing the relationship between And a display step of displaying the contents of the updated QoS table in the update step.

The computer program according to the present invention includes a generation step for generating identification information for identifying a party that actually performs communication in an Adhoc network that performs direct communication between a plurality of wireless communication devices, and the identification information generated in the generation step. Embedded in the notification signal, transmitting step, receiving the notification signal transmitted from the plurality of wireless communication devices, reading the identification information embedded in the notification signal received in the reception step, A specifying step for specifying a wireless communication device that has transmitted the received notification signal from identification information; and a calculation step for calculating communication quality when the communication partner specified in the specifying step is an actual communication partner. A wireless communication method is executed by a computer.
Another feature of the computer program of the present invention is that, in an Adhoc network that directly communicates between a plurality of wireless communication devices, a generation step of generating identification information for identifying a partner that actually communicates, An exchange step for exchanging identification information between a plurality of wireless communication devices, a storage step for storing the identification information exchanged in the exchange step in a storage medium, and an identification information stored in the storage medium or generated in the generation step A transmission step of selecting one piece of identification information and transmitting the selected identification information embedded in a broadcast signal, a reception step of receiving a broadcast signal transmitted from the wireless communication device, and a broadcast signal received in the reception step The identification information is read from the plurality of wireless communication devices. A calculation step of calculating a communication quality in the case were identical, to execute the radio communication method and a display step of displaying a result calculated in the calculation step on the computer.
Another feature of the computer program of the present invention is that, in an Adhoc network that performs direct communication between a plurality of wireless communication devices, a generation step of generating identification information and wireless communication between the plurality of wireless communication devices. In the establishing step for establishing, the transmitting step for embedding the identification information generated in the generating step in the notification signal, the receiving step for receiving the notification signal transmitted from the plurality of wireless communication devices, and the receiving step A reading step of reading identification information from the received notification signal, a calculation step of calculating communication quality from the notification signal including the identification information read in the reading step, the communication quality calculated in the calculation step, and the identification information Update step to update the communication quality table showing the relationship And up to execute a wireless communication method and a display step of displaying the contents of the communication quality table updated in the update step to the computer.

  A recording medium according to the present invention records any one of the computer programs described above.

According to the present invention, identification information is embedded in a broadcast signal used in an Adhoc network. Thus, by reading the identification information from the received notification signal, it becomes possible to identify the sender, and thereby accurately grasp the communication quality with the desired partner.
According to another feature of the present invention, the communication quality is calculated when the identification information identification information read from the received notification signal is the same as the identification information stored in the storage unit. As a result, it is only necessary to calculate the communication quality only when a notification signal transmitted from a desired communication partner is received, and unnecessary calculation processing can be omitted.

  According to another aspect of the present invention, the communication quality table indicating the relationship between the calculated communication quality and the identification information is updated, so communication between the own device and each of the peripheral device groups is performed. It is also possible to acquire the quality and display it in a list, and to provide the user with information for determining which peripheral device to connect to.

  Furthermore, according to another feature of the present invention, identification information is embedded in the broadcast signal in the Adhoc network, so that the sender can be identified.

(First embodiment)
Hereinafter, embodiments according to the present invention will be described with reference to the drawings.
FIG. 1 is a diagram illustrating an example of a network in the present embodiment. The first communication device 110, the second communication device 120, and the third communication device 130 (hereinafter referred to as the first STA 110, the second STA 120, and the third STA 130) are devices using Adhoc communication that does not pass through the base station. Various data communication is performed between each other.

FIG. 2 is a block diagram illustrating a functional configuration example of the communication device according to the present embodiment.
Each of the first STA 110, the second STA 120, and the third STA 130 includes a control unit 201 that performs various controls such as control of the entire device and calculation of communication quality, a display unit 202 that displays a menu, and peripheral communication devices. And a storage unit 204 for storing identification information and various data, and an operation unit 205 for performing various operations such as user mode switching and determination.

  FIG. 3 is a flowchart showing an example of the state transition of the identification information registration process in the present embodiment. FIG. 4 is a flowchart showing an example of the state transition at the time of communication quality calculation in the present embodiment. Further, FIG. 5 is a diagram illustrating a configuration example of a beacon frame including identification information used in the present embodiment. FIG. 6 is a diagram illustrating an example of a display screen in the present embodiment.

  Hereinafter, a specific operation of the present embodiment will be described with reference to the flowcharts of FIGS. 3 and 4. FIG. 3 is a flowchart showing a state transition diagram of the identification information registration process in the present embodiment. The identification information registration process is performed before communication is started, and exchanges (pairing) identification information for identifying an actually communicating party from a plurality of STAs existing in the Adhoc network. That is.

  In addition to exchanging identification information, the pairing process can also exchange wireless communication parameters such as ESSID and encryption key, and device names together. Further, in the present embodiment, the pairing process is performed only between the first STA 110 and the second STA 120, but the pairing process is performed with a plurality of devices, and a plurality of pairing data is obtained. It is also possible to hold it.

  The user first establishes a communication path between the first STA 110 and the second STA 120. This communication path may be wired communication means such as USB, or wireless communication means such as Blue tooth or IrDA.

  First, it is determined whether the pairing mode has been selected by the operation unit 205 of the first STA 110 (step S301). If the result of this determination is that the pairing mode has not been selected, the process waits until the pairing mode is selected. On the other hand, if the pairing mode is selected as a result of the determination in step S301, the first STA 110 is shifted to the pairing mode (step S303).

  Similarly, it is determined whether the pairing mode has been selected by the operation unit 205 of the second STA 120 (step S302). If the result of this determination is that the pairing mode has not been selected, the process waits until the pairing mode is selected. On the other hand, if the result of determination in step S302 is that the pairing mode has been selected, the second STA 120 is shifted to the pairing mode (step S304).

  Thereafter, it is determined whether or not the first STA 110 is operated and execution of pairing is selected (step S305). If execution of pairing is not selected as a result of this determination, the process waits until it is selected. In the present embodiment, it is assumed that the first STA 110 is operated by the user. On the other hand, if execution of pairing is selected as a result of the determination in step S305, the first STA 110 generates an identification information bit unique to the own device for identifying the device (step S306).

  Next, the identification information bit generated in step S306 is transmitted to the second STA 120 (step S307). Then, the second STA 120 receives the identification information bit transmitted from the first STA 110 (step S308). The identification information bit here is a unique bit string for identifying a device, and is an 8-bit bit string in this embodiment. The identification information bit only needs to be unique within the Adhoc network, and a random value can be generated using a random number or the like and used.

  After transmitting the identification information bit, the first STA 110 sets the transmitted identification information bit in the storage unit 204 (step S309), and ends the identification information registration process. Similarly, when receiving the identification information bit, the second STA 120 sets the identification information bit as identification information of the communication partner in the storage unit 204 (step S310), and ends the identification information registration process.

  In the present embodiment, some communication path is established between the first STA 110 and the second STA 120 before performing the pairing process. On the other hand, it is also possible to realize exchange of identification information between devices performed in steps S307 and S308 via an external storage medium such as a memory card. It is also possible to exchange identification information between devices using a higher-level application layer protocol during wireless communication.

Next, a flow from the start of wireless communication to the determination of a communication partner device, calculation of communication quality, and display will be described with reference to FIG.
First, the operation unit 205 of the second STA 120 determines whether or not start of wireless communication is selected by a user operation (step S401). As a result of this determination, if the start of wireless communication is not selected, the process waits until the start of wireless communication is selected. On the other hand, as a result of the determination in step S401, if the start of wireless communication is selected, the second STA 120 performs connection processing (step S402).

  At this time, the other party to communicate with is selected from the pairing data. Various parameters of wireless communication may be stored in advance as pairing data in the storage unit 204 of the second STA 120, or various parameters may be input by operating the operation unit 205 by the user. Then, a wireless link is established as an Adhoc network, and a wireless communication state is set (step S403).

  Thereafter, the second STA 120 determines what change has occurred due to an operation or the like (step S404). As a result of this determination, if a packet is received during wireless communication by operation or the like, it is determined whether the packet is a beacon packet or a data packet (step S405). If it is determined that the packet is a beacon packet, the identification information bits B8 to B15 of the beacon packet frame shown in FIG. 5 are read (step S406).

  Next, it is determined whether or not the received identification information is the same as the identification information bit set in step S310 of FIG. 3 (step S407). As a result of this determination, if it is determined that they are the same, the communication quality is calculated from the received beacon packet (step S408), and the result is displayed on the display unit 202 (step S409). On the other hand, if the result of determination in step S407 is not the same, communication quality is not calculated and the process returns to step S403.

  If the result of determination in step S405 is that the received packet is a data packet, data reception processing is performed (step S410). Then, the communication quality is calculated from the data packet (step S411), and the result is displayed on the display unit 202 (step S412).

  On the other hand, if it is determined in step S404 that a packet is to be transmitted during wireless communication, it is determined whether the packet is a beacon packet or a data packet (step S413). If it is determined that the packet is a beacon packet, identification information bits created by itself are embedded in B8 to B15 of the beacon packet shown in FIG. 5 (step S414), and the beacon is transmitted (step S415).

  On the other hand, if the result of determination in step S413 is that the packet to be transmitted is a data packet, data transmission processing is performed (step S416). If the result of determination in step S404 is that wireless communication is to be terminated, wireless disconnection processing is performed (step S417), and the processing is terminated.

  As shown in FIG. 6A, the communication quality is displayed in the present embodiment by displaying the name of the communication partner paired on the display screen and the communication quality with a level bar, as shown in FIG. 6B. Or may be displayed numerically. In addition, it may be displayed by any means that allows the user to know the communication quality, such as displaying an antenna as shown in FIG. Further, the display on the display unit 202 can be displayed at an arbitrary timing as long as the wireless communication is started, and it is also possible to select whether or not to display by a user operation.

  As described above, in an Adhoc network that is Peer-to-Peer communication between devices that do not have a base station, broadcast signals such as beacon are randomly transmitted between a plurality of devices. For this reason, the communication quality is calculated using a notification signal from a device that is not the actual communication partner, and there is a possibility that the communication quality of a route different from the actual communication route is calculated.

  However, in the present embodiment, the communication quality between the communication partner is calculated from the data packet at the time of data communication, and the identification information is shared with the communication partner in advance by the pairing process even at the time of communication idle. deep. At the time of beacon transmission, the identification information is embedded in the beacon and transmitted. Thus, a device that has received a beacon can determine whether the desired communication partner has transmitted the beacon by looking at the identification information, and can calculate only the communication quality with the actual communication partner.

  In this embodiment, since the second STA 120 performs pairing processing with the first STA 110, the communication quality is not calculated from the beacon transmitted by the third STA 130, and only the beacon transmitted by the first STA 110 is transmitted. Communication quality is calculated. Therefore, it is possible to calculate and display only the communication quality on the communication path with the paired partner, and to notify the accurate communication quality that matches the user's usage mode.

  In this embodiment, the beacon packet is expanded and the identification of the communication partner is realized by embedding device identification information in the beacon packet. Furthermore, if a mechanism for acquiring the MAC address of the transmitting device when the beacon is received by the wireless chip and notifying the wireless driver of the MAC address is realized, the MAC address can be used as the device identification information.

(Second Embodiment)
The configuration diagram of the communication device in the present embodiment is the same as that shown in the first embodiment. The structure of the beacon frame including the identification information is the same as that shown in FIG.
FIG. 7 is a diagram illustrating an example of state transition at the time of communication quality calculation in the present embodiment. FIG. 8 is a diagram illustrating an example of a display screen in the present embodiment. Further, FIG. 9 is a diagram showing an example of a communication quality table in the present embodiment.

Hereinafter, a specific operation of the present embodiment will be described with reference to the flowchart of FIG.
First, the user operates the operation unit 205 of the first STA 110 to start wireless communication (step S701). Note that various parameters for wireless communication may be stored in advance in the storage unit 204 of the first STA 110, or various parameters may be input by operating the operation unit 205 by the user.

  When the wireless communication start is selected by the user, a unique bit string for identifying the device is randomly generated using a random number or the like, and identification information generation processing is performed (step S702). Then, a connection process is performed (step S703), a radio link is established as an Adhoc network, and a wireless communication state is set (step S704).

  Thereafter, the first STA 110 determines what change has occurred due to an operation or the like (step S705). As a result of this determination, when a beacon packet is received during wireless communication, the identification information bits B8 to B15 of the beacon packet frame shown in FIG. 5 are read (step S706). Then, communication quality is calculated (step S707). Thereafter, as shown in FIG. 9, the communication quality table 901 composed of the identification information and the communication quality obtained in steps S706 and S707 is updated (step S708).

  Next, it is determined whether or not new device information (new identification information) has been added to the communication quality table 901 (step S709). If new identification information is added to the communication quality table 901 as a result of this determination, the device name corresponding to the new identification information is inquired to the peripheral device, and the new identification information and the device name are associated (step S710). .

  On the other hand, as a result of the determination in step S709, if new identification information is not added to the communication quality table 901, the process proceeds to step S711. Next, the information of the communication quality table 901 is displayed on the display unit 202 (step S711), and the process returns to step S704.

  As a result of the determination in step S705, if a beacon packet is transmitted during wireless communication, the identification information bits generated in step S702 are embedded in B8 to B15 of the beacon packet shown in FIG. 5 to create a beacon packet ( Step S712). And beacon is transmitted (step S713) and it returns to step S704. If the result of determination in step S705 is that wireless communication is to be terminated, wireless disconnection processing is performed (step S714), and the processing is terminated.

  As shown in FIG. 8A, the communication quality in this embodiment is displayed on the display screen with the name of the communication partner associated with the identification information and the communication quality displayed on the level bar. Or may be displayed numerically as shown in FIG. In addition, it may be displayed by any means that allows the user to know the communication quality, such as an antenna display as shown in FIG. Further, the display on the display unit 202 can be displayed at any timing after the start of wireless communication, and it is also possible to select whether or not to display by a user operation.

  As described above, in an Adhoc network that is Peer-to-Peer communication between devices that do not have a base station, broadcast signals such as beacon are randomly transmitted between a plurality of devices. For this reason, the receiving device cannot identify it.

  However, in this embodiment, when transmitting a beacon, unique identification information is embedded in the beacon and transmitted. As a result, the device that has received the beacon can determine the beacon transmitting device by looking at the identification information, and can manage the communication quality for each communication device using the communication quality table. By displaying the information of this communication quality table, it is possible to always inform the user of the communication quality between the own device and the peripheral device group, and because the communication quality with the user is poor, the communication partner is sent to other devices. It is possible to provide a judgment material such as when switching.

  In this embodiment, the beacon packet is expanded, and the identification of the communication partner is realized by embedding device identification information in the beacon packet. Furthermore, if a mechanism for acquiring the MAC address of the transmitting device when the beacon is received by the wireless chip and notifying the wireless driver of the MAC address is realized, the MAC address can be used as the device identification information.

(Other embodiments according to the present invention)
Each means constituting the wireless communication device and each step of the wireless communication method in the embodiment of the present invention described above can be realized by operating a program stored in a RAM or ROM of a computer. This program and a computer-readable recording medium recording the program are included in the present invention.

  Further, the present invention can be implemented as, for example, a system, apparatus, method, program, or recording medium. Specifically, the present invention may be applied to a system including a plurality of devices. The present invention may be applied to an apparatus composed of a single device.

  In the present invention, a software program (in the embodiment, a program corresponding to the flowcharts shown in FIGS. 3, 4, and 7) for realizing the functions of the above-described embodiments is directly or remotely supplied to the system or apparatus. This includes the case where the system or the computer of the apparatus is also achieved by reading and executing the supplied program code.

  Accordingly, since the functions of the present invention are implemented by computer, the program code installed in the computer also implements the present invention. In other words, the present invention includes a computer program itself for realizing the functional processing of the present invention.

  In that case, as long as it has the function of a program, it may be in the form of object code, a program executed by an interpreter, script data supplied to the OS, or the like.

  Examples of the recording medium for supplying the program include a floppy (registered trademark) disk, a hard disk, an optical disk, and a magneto-optical disk. Further, there are MO, CD-ROM, CD-R, CD-RW, magnetic tape, nonvolatile memory card, ROM, DVD (DVD-ROM, DVD-R) and the like.

  As another program supply method, there is a method of connecting to a homepage on the Internet using a browser of a client computer. The computer program itself of the present invention or a compressed file including an automatic installation function can be downloaded from the homepage by downloading it to a recording medium such as a hard disk.

  It can also be realized by dividing the program code constituting the program of the present invention into a plurality of files and downloading each file from a different homepage. That is, a WWW server that allows a plurality of users to download a program file for realizing the functional processing of the present invention on a computer is also included in the present invention.

  As another method, the program of the present invention is encrypted, stored in a recording medium such as a CD-ROM, distributed to users, and encrypted from a homepage via the Internet to users who have cleared predetermined conditions. Download the key information to be solved. It is also possible to execute the encrypted program by using the key information and install the program on a computer.

  Further, the functions of the above-described embodiments are realized by the computer executing the read program. Furthermore, based on the instructions of the program, an OS or the like running on the computer performs part or all of the actual processing, and the functions of the above-described embodiments can be realized by the processing.

  As another method, the program read from the recording medium is first written in a memory provided in a function expansion board inserted into the computer or a function expansion unit connected to the computer. Then, based on the instructions of the program, the CPU or the like provided in the function expansion board or function expansion unit performs part or all of the actual processing, and the functions of the above-described embodiments are also realized by the processing.

It is a figure which shows an example of the Adhoc network system in the 1st Embodiment of this invention. It is a block diagram which shows the function structural example of the communication apparatus in the 1st Embodiment of this invention. It is a flowchart which shows an example of the state transition of the identification information registration process in the 1st Embodiment of this invention. It is a flowchart which shows an example of the state transition at the time of communication quality calculation in the 1st Embodiment of this invention. It is a figure which shows the structural example of the beacon frame containing the identification information used in the 1st Embodiment of this invention. It is a figure which shows an example of the display screen in the 1st Embodiment of this invention. It is a flowchart which shows an example of the state transition at the time of communication quality calculation in the 2nd Embodiment of this invention. It is a figure which shows an example of the display screen in the 2nd Embodiment of this invention. It is a figure which shows an example of the communication quality table in the 2nd Embodiment of this invention.

Explanation of symbols

110 First STA
120 second STA
130 Third STA
201 Control Unit 202 Display Unit 203 Communication Unit 204 Storage Unit 205 Operation Unit

Claims (22)

In an Adhoc network that performs direct communication between a plurality of wireless communication devices, a generation unit that generates identification information for identifying a party that actually performs communication;
Transmitting means for embedding the identification information generated by the generating means in a notification signal;
Receiving means for receiving notification signals transmitted from the plurality of wireless communication devices;
A identifying unit that reads identification information embedded in the notification signal received by the receiving unit, and that identifies the wireless communication device that has transmitted the received notification signal from the identification information;
A wireless communication device comprising: a calculation unit that calculates communication quality when the communication partner specified by the specifying unit is an actual communication partner. In an Adhoc network that performs direct communication between a plurality of wireless communication devices, a generation unit that generates identification information for identifying a party that actually performs communication;
Exchange means for exchanging identification information between the plurality of wireless communication devices;
Storage means for storing the identification information exchanged by the exchange means in a storage medium;
Transmitting means for selecting one of the identification information stored in the storage medium or the identification information generated by the generation means, and transmitting the selected identification information embedded in a notification signal;
Receiving means for receiving a notification signal transmitted from the wireless communication device;
Reading the identification information from the notification signal received by the receiving means, if the identification information is the same as the identification information exchanged between the plurality of wireless communication devices, a calculation means for calculating communication quality,
A wireless communication device comprising: a display unit configured to display a result calculated by the calculation unit on a display unit.   The wireless communication device according to claim 1, wherein, when the receiving unit receives a data packet, the calculating unit calculates a communication quality from the received packet.   The wireless communication device according to claim 1, wherein the identification information is a random value generated inside the wireless communication device or a unique value unique to the wireless communication device.   5. The wireless communication device according to claim 1, wherein the exchange unit exchanges the identification information using a wired communication unit, a wireless communication unit, or an external storage medium. In an Adhoc network that directly communicates between a plurality of wireless communication devices, a generation unit that generates identification information;
Establishing means for establishing wireless communication with the plurality of wireless communication devices;
Transmitting means for transmitting the identification information generated by the generating means embedded in a notification signal;
Receiving means for receiving notification signals transmitted from the plurality of wireless communication devices;
Reading means for reading identification information from the notification signal received by the receiving means;
Calculating means for calculating communication quality from a notification signal including identification information read by the reading means;
Updating means for updating a communication quality table indicating a relationship between the communication quality calculated by the calculating means and the identification information;
A wireless communication device comprising: a display unit that displays the contents of the communication quality table updated by the updating unit.   The communication quality table is composed of the identification information and the names and communication qualities of other wireless communication devices corresponding to the identification information. When new identification information is acquired, a new item is added to the communication quality table. The wireless communication device according to claim 6, wherein communication quality is updated by the updating unit when existing identification information is acquired.   The wireless communication device according to claim 7, wherein the name of another wireless communication device added to the communication quality table is acquired by making an inquiry to a peripheral wireless communication device based on the identification information.   The wireless communication device according to claim 1, wherein a MAC address is used as the identification information. In an Adhoc network that directly communicates between a plurality of wireless communication devices, a generation step for generating identification information for identifying a party that actually performs communication;
A transmission step in which the identification information generated in the generation step is embedded in a notification signal and transmitted;
A receiving step of receiving notification signals transmitted from the plurality of wireless communication devices;
A step of reading the identification information embedded in the notification signal received in the reception step, and identifying the wireless communication device that has transmitted the received notification signal from the identification information;
A wireless communication method comprising: a calculation step of calculating communication quality when the communication partner specified in the specifying step is an actual communication partner. In an Adhoc network that directly communicates between a plurality of wireless communication devices, a generation step for generating identification information for identifying a party that actually performs communication;
An exchange step of exchanging identification information between the plurality of wireless communication devices;
A storage step of storing the identification information exchanged in the exchange step in a storage medium;
A step of selecting one of the identification information stored in the storage medium or the identification information generated in the generation step, and transmitting the selected identification information embedded in a notification signal;
Receiving a notification signal transmitted from the wireless communication device; and
Reading the identification information from the notification signal received in the receiving step, and calculating the communication quality when the identification information is the same as the identification information exchanged between the plurality of wireless communication devices,
And a display step of displaying the result calculated in the calculation step on a display unit.   The wireless communication method according to claim 10, wherein the calculating step calculates communication quality from the received packet when a data packet is received in the receiving step.   The wireless communication method according to any one of claims 10 to 12, wherein the identification information is a random value generated inside the wireless communication device or a unique value unique to the wireless communication device.   The wireless communication method according to any one of claims 10 to 13, wherein, in the exchange step, the identification information is exchanged using a wired communication unit, a wireless communication unit, or an external storage medium. In an Adhoc network that directly communicates between a plurality of wireless communication devices, a generation step for generating identification information;
Establishing a wireless communication with the plurality of wireless communication devices;
A transmission step in which the identification information generated in the generation step is embedded in a notification signal and transmitted;
A receiving step of receiving notification signals transmitted from the plurality of wireless communication devices;
A reading step of reading identification information from the notification signal received in the receiving step;
A calculation step of calculating communication quality from a notification signal including the identification information read in the reading step;
An update step of updating a communication quality table indicating a relationship between the communication quality calculated in the calculation step and the identification information;
And a display step for displaying the contents of the communication quality table updated in the updating step.   The communication quality table is composed of the identification information and the names and communication qualities of other wireless communication devices corresponding to the identification information. When new identification information is acquired, a new item is added to the communication quality table. The wireless communication method according to claim 15, wherein, when existing identification information is acquired, communication quality is updated in the updating step.   17. The wireless communication method according to claim 16, wherein the name of another wireless communication device added to the communication quality table is acquired by making an inquiry to a surrounding wireless communication device based on the identification information.   The wireless communication method according to claim 10, wherein a MAC address is used as the identification information. In an Adhoc network that directly communicates between a plurality of wireless communication devices, a generation step for generating identification information for identifying a party that actually performs communication;
A transmission step in which the identification information generated in the generation step is embedded in a notification signal and transmitted;
A receiving step of receiving notification signals transmitted from the plurality of wireless communication devices;
A step of reading the identification information embedded in the notification signal received in the reception step, and identifying the wireless communication device that has transmitted the received notification signal from the identification information;
A computer program for causing a computer to execute a wireless communication method having a calculation step of calculating communication quality when the communication partner specified in the specifying step is an actual communication partner. In an Adhoc network that directly communicates between a plurality of wireless communication devices, a generation step for generating identification information for identifying a party that actually performs communication;
An exchange step of exchanging identification information between the plurality of wireless communication devices;
A storage step of storing the identification information exchanged in the exchange step in a storage medium;
A step of selecting one of the identification information stored in the storage medium or the identification information generated in the generation step, and transmitting the selected identification information embedded in a notification signal;
Receiving a notification signal transmitted from the wireless communication device; and
Reading the identification information from the notification signal received in the receiving step, and calculating the communication quality when the identification information is the same as the identification information exchanged between the plurality of wireless communication devices,
A computer program causing a computer to execute a wireless communication method including a display step of displaying a result calculated in the calculation step on a display unit. In an Adhoc network that directly communicates between a plurality of wireless communication devices, a generation step for generating identification information;
Establishing a wireless communication with the plurality of wireless communication devices;
A transmission step in which the identification information generated in the generation step is embedded in a notification signal and transmitted;
A receiving step of receiving notification signals transmitted from the plurality of wireless communication devices;
A reading step of reading identification information from the notification signal received in the receiving step;
A calculation step of calculating communication quality from a notification signal including the identification information read in the reading step;
An update step of updating a communication quality table indicating a relationship between the communication quality calculated in the calculation step and the identification information;
A computer program causing a computer to execute a wireless communication method including a display step of displaying the contents of the communication quality table updated in the updating step.   A computer-readable recording medium on which the computer program according to any one of claims 19 to 21 is recorded.

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