JP5627412B2 - Wireless communication system, wireless communication method, system side device, terminal, and program - Google Patents

Description

  The present invention relates to a wireless communication system, a wireless communication method, a system side device, a terminal, and a program.

  In recent years, various devices such as personal computers, mobile phones, smartphones, game machines, etc., equipped with a wireless LAN interface have been increasing, and wireless communication with these devices enables connection to the Internet. Public wireless LAN spots have been installed in many stores, stations, airports, hotels and the like.

  In wireless LAN communication, when establishing communication between an access point and a terminal, it is necessary for the terminal side to obtain and set necessary setting information. Of course, since wireless LAN communication has not been established at this time, the setting information cannot be obtained and set by wireless LAN communication. Therefore, conventionally, it has been time-consuming and manually set by the user.

  Japanese Patent Laid-Open No. 2004-260688 includes a means for obtaining and setting setting information necessary for wireless LAN activation and communication establishment via other communication means such as human body communication on both the terminal side and the system side. Thus, there is described a wireless communication system that can easily and automatically establish wireless LAN communication and improve convenience.

  Human body communication refers to a technology for performing communication between devices through the human body. As one of the human body communication methods, a technique is known in which a weak electric field is generated on the surface of the body and communication is performed using this electric field. When a voltage is applied to the electrode of the transmitter carried by the user, a weak electric field is generated on the surface of the user's body, and the strength of the electric field of the body is created by changing the strength of the voltage of the electrode. Express the difference between 0 and 1. The receiver catches the strength of this electric field and restores / exchanges it into an electrical signal. In addition, as another method of human body communication, there is one that performs communication by passing a weak current through the body.

  On the other hand, in the wireless LAN standard (IEEE 802.11), a means for performing retransmission when frame transmission fails is defined. In general, the upper limit number of retransmissions for performing retransmission is set individually by the access point and the terminal. In a situation where terminals with non-uniform retransmission limit numbers belong to the same network, the communication quality may be further deteriorated at the time of congestion.

  Patent Document 2 implements ARF (Auto Rate Fallback) control that counts the number of successful transmissions and failed transmissions of radio frames and changes the transmission rate of the radio frames when these values reach a specified threshold In addition, by providing another specified threshold value smaller than these threshold values, and when this value is reached, the CW initial value is enlarged / reduced, so that the CW initial value is set appropriately according to the wireless environment. Therefore, a wireless communication apparatus and a wireless communication method that perform CSMA / CA control and ARF control that can suppress a decrease in throughput are described.

  In Patent Document 3, the wireless LAN access point is provided with means for monitoring the wireless band usage state, means for calculating the optimum number of retransmissions from the obtained wireless band usage status information, and the optimum number of retransmissions for the wireless LAN. Means for notifying the terminal using a frame (beacon, data, etc.), means for receiving the optimum number of retransmissions from the wireless LAN access point on the terminal side, and the wireless LAN operation of this retransmission number A wireless communication apparatus and a wireless communication method that include means for reflecting the setting and optimize the number of wireless retransmissions are described.

JP 2010-050905 A JP 2010-056655 A JP 2008-092116 A

  In the wireless communication system described in Patent Literature 1, since there is no wireless LAN frame retransmission number control means corresponding to the congestion status of wireless LAN access points for terminals, terminals having non-uniform retransmission count settings belong to the same network. In the situation, there is a problem that the communication quality of the wireless LAN may be remarkably deteriorated at the time of congestion as compared with a network configured by a group of terminals having a uniform number of retransmissions.

  In the wireless communication device and the wireless communication method described in Patent Document 2, the number of retransmissions of the terminal itself cannot be controlled according to the wireless LAN access point congestion situation. There has been a problem that the communication quality of the wireless LAN may sometimes deteriorate significantly.

  In the wireless communication device and the wireless communication method described in Patent Document 3, a part of the information element in the IEEE802.11 standard frame is used for a specific purpose of notifying the number of retransmissions outside the IEEE802.11 standard range. When a non-compliant wireless LAN terminal connects to a wireless LAN access point compatible with the technology and refers to the information element of the notification of the number of retransmissions, the information element is erroneously recognized as completely different information. There was a problem that wireless LAN abnormal operation might occur.

  The present invention has been made in view of such a situation, and in a public wireless LAN or the like, even when the connection target access point is congested, a wireless communication system capable of preventing significant deterioration in communication quality. , A wireless communication method, a system-side device, a terminal, and a program are provided.

  In the present invention, the system-side device determines the upper limit number of frame retransmissions in the first wireless communication system based on the line status in the first wireless communication system that is wireless LAN communication, for example. It transmits to the terminal by the communication method, and the terminal communicates with the system side device by the first wireless communication method using the smaller one of the frame retransmission upper limit number received from the system side device and the frame retransmission upper limit number held by itself. .

  The wireless communication system of the present invention includes a system-side device and a terminal, and the system-side device and the terminal are a first wireless communication method and a second communication method different from the first wireless communication method. And the system side device is configured to monitor the line status of the communication using the first wireless communication method, and to retransmit the frame in the first wireless communication method based on the line status. A retransmission upper limit number determining means for determining an upper limit number, and a transmission means for transmitting the determined frame retransmission upper limit number of times to the terminal by the second communication method, the terminal from the system side device to the first Receiving means for receiving the upper limit number of retransmissions in the communication method 2, retransmission upper limit number setting means for setting the value of the frame retransmission upper limit number received by the receiving means, and the retransmission upper limit number setting means. Characterized in that it comprises a communication means for communicating with the said system side apparatus the first wireless communication system using the set the retransmission limit number has been.

  The wireless communication method of the present invention includes a system-side device and a terminal, and the system-side device and the terminal include a first wireless communication method and a second communication method different from the first wireless communication method. A line communication state monitoring step in which the system side device monitors a line state of communication by the first wireless communication method, and the system side device is in the line state. And a retransmission upper limit count determination step for determining a frame retransmission upper limit count in the first wireless communication scheme based on the transmission side, and the system side device transmits the determined frame retransmission upper limit count to the terminal in the second communication scheme. Transmitting step, receiving step in which the terminal receives the upper limit number of frame retransmissions in the second communication scheme from the system side device, and the terminal in the receiving step A retransmission upper limit count setting step for setting the value of the received frame retransmission upper limit count, and the terminal uses the frame retransmission upper limit count set by the retransmission upper limit count setting step and the system side device and the first radio And a communication step of performing communication by a communication method.

  The system-side device of the present invention includes a system-side device and a terminal, and the system-side device and the terminal are different from each other in a first wireless communication method and the first wireless communication method. A system-side apparatus in a wireless communication system that communicates with each other using line status monitoring means for monitoring a line status of communication according to the first radio communication method; and the first radio communication based on the line status A retransmission upper limit count determining means for determining a frame retransmission upper limit count in the system, and a transmission means for transmitting the determined frame retransmission upper limit count to the terminal in the second communication scheme.

  The terminal of the present invention includes a system-side device and a terminal, and the system-side device and the terminal have a first wireless communication method and a second communication method different from the first wireless communication method. A terminal in a wireless communication system that performs communication, wherein a receiving unit that receives the upper limit number of retransmissions from the system side device by the second communication method and a value of the upper limit number of frame retransmissions received by the receiving unit are set A retransmission upper limit number setting unit; and a communication unit configured to communicate with the system-side apparatus using the first wireless communication method using the retransmission upper limit number set by the retransmission upper limit number setting unit. .

  The system side device also transmits setting information necessary for communication by the first wireless communication method to the terminal by a second communication means, and the terminal uses the received setting information to communicate with the system side device. Communication may be performed using the first wireless communication method.

  The upper limit number of frame retransmissions may be set individually for each radio frame type of management frame, control frame, and data frame.

  The first wireless communication method may be wireless LAN communication, and the second communication method may be human body communication.

  According to the present invention, in a public wireless LAN or the like, even when a connection target wireless LAN access point is congested, it is possible to prevent a significant deterioration in communication quality. Furthermore, even when a general wireless LAN terminal that does not have the configuration of the second wireless communication system of the present invention is connected to the wireless LAN access point of the present invention by wireless LAN, no problem occurs in the wireless LAN operation.

It is a block diagram which shows an example of a structure of the radio | wireless communications system of this invention. 6 is a table showing an example of data formed by a wireless LAN access point connection information generation unit 16. 6 is a table showing an example of data stored in a wireless LAN setting area 33. It is a sequence diagram which shows the flow of a process when the system side apparatus 1 and the terminal 2 which are shown in FIG. 1 establish wireless LAN communication. 3 is a flowchart for explaining an operation when the system-side device 1 shown in FIG. 1 establishes wireless LAN communication with a terminal 2. 2 is a flowchart illustrating an operation when the terminal 2 illustrated in FIG. 1 establishes wireless LAN communication with a system-side device 1. 6 is a diagram illustrating an example of setting a wireless LAN frame retransmission upper limit number of times in a terminal 2. FIG.

Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is a block diagram showing an example of the configuration of the wireless communication system of the present invention. In the present invention, the first wireless communication method is a wireless LAN, and the second communication method is human body communication. The wireless communication system includes a system side device 1 and a plurality of terminals 2. For simplicity, only one terminal 2 is shown in FIG.

  The system side device 1 includes a wireless LAN access point 3, a communication control unit 5, a system side storage unit 7, and a system side human body communication transmitting / receiving unit 9.

  The wireless LAN access point 3 performs wireless LAN communication with the terminal 2 as a base station, and realizes connection to the Internet via a communication network.

  The communication control unit 5 includes a wireless LAN management / control unit 11 and a system-side human body communication management unit 12, and performs various controls of the wireless LAN and human body communication.

  The wireless LAN management / control unit 11 includes a wireless LAN access point setting management unit 13, a line status monitoring unit 14, and a retransmission upper limit number determination unit 15. Setting control for the wireless LAN access point 3, wireless LAN access point 3 line status monitoring, and determination of the upper limit number of retransmissions according to this. The wireless LAN access point setting management unit 13 manages settings of the wireless LAN access point 3. The line status monitoring unit 14 periodically acquires information regarding the line status (number of terminals connected, etc.) from the wireless LAN access point 3. The retransmission upper limit number determination unit 15 refers to the wireless LAN line status-retransmission upper limit number table holding area 19 of the system-side storage unit 7 according to the line status acquired by the line status monitoring unit 14, and determines the upper limit number of retransmissions. .

  The system side human body communication management unit 12 includes a wireless LAN access point connection information generation unit 16, a system side human body communication connection control unit 17, and a system side human body communication control unit 18, and the terminal 2 connects to the wireless LAN access point. In order to transfer various information necessary for the transmission and the retransmission upper limit count determined by the retransmission upper limit count determination unit 15 to the terminal 2, various controls are performed on the system side human body communication transmitting / receiving unit 9. The wireless LAN access point connection information generation unit 16 transfers various information managed by the wireless LAN access point setting management unit 13 and the retransmission upper limit number determined by the retransmission upper limit number determination unit 15 to the terminal via human body communication. Data formation is performed for this purpose. An example of data formed by the wireless LAN access point connection information generation unit 16 is shown in the table of FIG. In the example of FIG. 2, wireless LAN setting information for “SSID”, “IP address”, “channel”, “encryption / authentication method”, and the like are set as wireless LAN setting items, and further, a management frame, a control frame, An upper limit number of retransmissions for each data frame is set. The system-side human body communication connection control unit 17 controls the system-side human body communication transmitting / receiving unit 9 to call and connect to the opposite device (terminal 2) in the human body communication. The system-side human body communication control unit 18 performs transmission / reception control of data formed by the wireless LAN access point connection information generation unit 16 with respect to the system-side human body communication transmission / reception unit 9.

  The system-side storage unit 7 includes a wireless LAN line status-retransmission upper limit number table holding area 19 and a system-side human body communication setting area 20, and stores data and operation programs used by the communication control unit 5. The wireless LAN line status-retransmission upper limit count table holding area 19 stores a wireless LAN line status-retransmission upper limit count table for associating the wireless LAN line status (number of terminal connections, etc.) with the retransmission upper limit count. The system-side human body communication setting area 20 stores various setting information for human body communication, and further stores the human body communication authentication ID of the terminal 2 that permits wireless LAN connection with the wireless LAN access point 3.

  The system side human body communication transmitting / receiving unit 9 follows the instruction from the system side human body communication managing unit 12 to construct / modulate / transmit a frame necessary for connection with the opposite device (terminal 2) in human body communication and data communication, and Receive / demodulate / analyze.

  The terminal 2 includes an overall control unit 4, a wireless LAN transmission / reception unit 6, a terminal-side human body communication transmission / reception unit 8, a terminal-side storage unit 10, a wireless LAN antenna 21, a display unit 22, and a key unit 23. .

  The overall control unit 4 includes a wireless LAN control unit 24 and a terminal-side human body communication management unit 25, operates a program stored in the program storage area 32 of the terminal-side storage unit 10, and performs various controls of the terminal 2. .

  The wireless LAN control unit 24 includes a terminal-side wireless LAN connection control unit 26, a terminal-side wireless LAN communication control unit 27, and a retransmission upper limit number setting unit 28, and various types for appropriately operating the wireless LAN transmission / reception unit 6. Take control. The terminal-side wireless LAN connection control unit 26 controls connection to the wireless LAN access point 3 for the wireless LAN transmission / reception unit 6. The terminal-side wireless LAN communication control unit 27 performs data transmission / reception control with respect to the wireless LAN transmission / reception unit 6. The retransmission upper limit number setting unit 28 determines the upper limit number of retransmissions held in the wireless LAN setting area 33 of the terminal side storage unit 10 and the upper limit number of retransmissions received from the system side device 1 via the terminal side human body communication management unit 25. In comparison, the smaller one is set in the wireless LAN transmitting / receiving unit 6.

  The terminal-side human body communication management unit 25 includes a wireless LAN access point connection information extraction unit 29, a terminal-side human body communication connection control unit 30, and a terminal-side human body communication control unit 31. Various controls are performed to make it work. The wireless LAN access point connection information extraction unit 29 extracts the wireless LAN access point connection information (including the retransmission upper limit number) sent from the system side device 1 and transfers it to the wireless LAN control unit 24. The terminal-side human body communication connection control unit 30 performs call waiting and connection control for the terminal-side human body communication transmitting / receiving unit 8 from the opposite device (system-side device 1) in human body communication. The terminal-side human body communication control unit 31 performs data transmission / reception control with respect to the terminal-side human body communication transmitting / receiving unit 8.

  The wireless LAN transmission / reception unit 6 constructs / modulates / transmits a wireless frame necessary for connection with the wireless LAN access point 3 and data communication (including retransmission) and transmits a wireless frame according to an instruction from the wireless LAN control unit 24. Receive / demodulate / analyze.

  The terminal side human body communication transmitting / receiving unit 8 constructs / modulates / transmits a radio frame necessary for connection with the opposite device (system side device 1) in human body communication and data communication in accordance with an instruction from the terminal side human body communication management unit 25. And frame reception / demodulation / analysis.

  The terminal-side storage unit 10 includes a program storage area 32, a wireless LAN setting area 33, and a terminal-side human body communication setting area 34, and stores data and programs. The program storage area 32 stores an operation program for the overall control unit 4. The wireless LAN setting area 33 stores human body communication cooperation information in addition to various setting information for wireless LAN communication. An example of data stored in the wireless LAN setting area 33 is shown in the table of FIG. In the example of FIG. 3, in each of a plurality of wireless LAN profiles (profiles 1 to 3), “human body communication cooperation flag”, “human body communication authentication ID”, “SSID”, “IP address”, “channel”, Basic information such as “encryption / authentication scheme” is set, and further, an upper limit number of retransmissions for each of a management frame, a control frame, and a data frame is set. In this example, only the human body communication link flag of profile 3 is valid. Only when using a wireless LAN profile in which the human body communication linkage flag is valid, as will be described later, the basic information (SSID, IP address, channel, encryption / authentication method in the example of FIG. 3) is transmitted to the system side via human body communication. The retransmission upper limit number is set according to the wireless LAN connection information transmitted from the device 1, and the smaller number of retransmissions is compared with the upper limit number of retransmissions transmitted from the system side device 1 via human body communication. The human body communication setting area 34 stores various setting information for human body communication.

The wireless LAN antenna 21 is an antenna for performing wireless LAN communication with the wireless LAN access point 3.
The display unit 22 displays various information of the terminal 2.
The key unit 23 receives an input from a user intended for the operation.

  FIG. 4 is a sequence diagram showing a processing flow when the system-side device 1 and the terminal 2 shown in FIG. 1 establish wireless LAN communication. In the system-side device 1, the wireless LAN management / control unit 11 communicates with the wireless LAN access point 3 at a constant interval, for example, every 10 seconds to 1 minute, and shares the wireless LAN setting information and the line information. Specifically, the line status monitoring unit 14 of the wireless LAN management / control unit 11 acquires information about the line status (number of terminals connected, etc.) from the wireless LAN access point 3 at regular intervals, and the wireless LAN management / control unit 11 The wireless LAN access point setting management unit 13 transmits wireless LAN setting information to the wireless LAN access point 3 at regular intervals. The system-side human body communication managing unit 12 instructs the system-side human body communication transmitting / receiving unit 9 to make a terminal call request at regular intervals, and the system-side human body communication transmitting / receiving unit 9 calls the human body communication counterpart device (terminal 2). The interval between the terminal call requests is, for example, about several seconds, and may be the same as or different from the interval for sharing the wireless LAN setting information and the line information.

  In the terminal 2, the wireless LAN control unit 24 is connected to the terminal-side human body communication transmitting / receiving unit via the terminal-side human body communication management unit 25 on the condition that a wireless LAN connection profile effective for human body communication cooperation is preset in the terminal 2. 8 is started. Note that when connected to a wireless LAN different from this profile, activation of the terminal-side human body communication transmitting / receiving unit 8 may be waited until the connection is disconnected. The activated terminal-side human body communication transmitting / receiving unit 8 waits for a call from the system-side device 1. Specifically, human body communication reception is performed intermittently at intervals of several seconds or at all times, and a call signal from the system side device 1 is detected. For example, when the user carrying the terminal 2 comes into contact with the system-side human body communication transmitting / receiving unit 9 of the system-side device 1, the terminal 2 responds to the human-body communication call of the system-side device. When the terminal side human body communication transmitting / receiving unit 8 detects a call signal from the system side device 1, the terminal side human body communication transmitting / receiving unit 8 notifies the terminal side human body communication managing unit 25 of the call detection. Upon receiving the call detection notification, the human body communication management unit 25 instructs the terminal side human body communication transmitting / receiving unit 8 to send the human body communication authentication ID stored in the wireless LAN setting area 33 and the wireless LAN connection information request to the system side device. 1 is transmitted to the system side apparatus 1 by human body communication as a response to the terminal call request from 1.

  In the system side apparatus 1, the system side human body communication transmitting / receiving unit 9 transfers the response signal received from the terminal 2 to the system side human body communication managing unit 12. The system-side human body communication management unit 12 uses the human body communication authentication ID included in the response signal as the human body communication authentication ID of the terminal that permits wireless LAN connection with the wireless LAN access point 3 registered in the human body communication setting area 20. Compare. When the human body communication authentication ID included in the response signal is not registered, it is determined as a non-conforming terminal, and the process returns to the calling process of the human body communication counterpart device (terminal 2). When the human body communication authentication ID included in the response signal is registered, it is determined as a compatible terminal, and the system side human body communication management unit 12 corresponds to the wireless LAN connection information based on the current wireless LAN setting information and the line congestion degree. The wireless LAN management / control unit 11 is requested for the retransmission upper limit count information. The retransmission upper limit number determination unit 15 of the wireless LAN management / control unit 11 refers to the wireless LAN line state-retransmission upper limit number table stored in the wireless LAN line state-retransmission upper limit number table holding area 19, and the line state monitoring unit 14 determines the upper limit number of retransmissions based on the latest information on the line status acquired from the wireless LAN access point 3 and transmits it to the system-side human body communication management unit 12. The wireless LAN access point setting management unit 13 of the wireless LAN management / control unit 11 transmits the managed wireless LAN connection information to the system side human body communication management unit 12. The wireless LAN access point connection information generation unit 16 of the system side human body communication management unit 12 uses the retransmission upper limit number acquired from the retransmission upper limit number determination unit 15 and the wireless LAN connection information acquired from the wireless LAN access point setting management unit 13. The system side human body communication transmitting / receiving unit 9 is instructed and transferred to the opposite device (terminal 2) by human body communication.

  In the terminal 2, the terminal side human body communication transmitting / receiving unit 8 that has received the wireless LAN connection information and the retransmission upper limit number setting information from the system side device 1 by human body communication transfers these information to the terminal side human body communication managing unit 25. The terminal-side human body communication management unit 25 further transfers these pieces of information to the wireless LAN control unit 24. The wireless LAN control unit 24 sets the wireless LAN connection information included in the transferred information in the corresponding wireless LAN profile stored in the wireless LAN setting area 33 of the terminal-side storage unit 10. The retransmission upper limit number setting unit 28 of the wireless LAN control unit 24 compares the upper limit number of retransmissions stored in the wireless LAN setting area 33 with the upper limit number of retransmissions included in the information transferred from the system side device 1, and is small. Is set in the wireless LAN transceiver 6. The terminal-side wireless LAN connection control unit 26 of the wireless LAN control unit 24 instructs the wireless LAN transmission / reception unit 6 based on the wireless LAN profile stored in the wireless LAN setting area 33, and sends a wireless LAN to the system side device 1. Request communication start / connection.

  When the wireless LAN access point 3 receives a wireless LAN communication activation / connection request from the terminal 2 within a specified time in the system-side device 1, the wireless LAN access point 3 establishes wireless LAN communication with the terminal 2 and the wireless LAN management / control unit 11. Terminal 2 transmits a wireless LAN connection completion notification to terminal 2 and transmits a wireless LAN connection success notification to terminal 2. The line status control unit 14 of the wireless LAN management / control unit 11 reflects the wireless LAN communication with the terminal 2 in the line status. Thereafter, the wireless LAN communication between the system side device 1 and the terminal 2 becomes effective.

  Even after the wireless LAN communication with the terminal 2 is established, the system-side apparatus 1 determines the upper limit number of retransmissions based on the latest line status at a predetermined interval, and transmits it to the terminal 2 by human body communication. May update the actual retransmission upper limit count based on the transmitted retransmission upper limit count.

  FIG. 5 is a flowchart for explaining the operation when the system apparatus 1 shown in FIG. 1 establishes wireless LAN communication with the terminal 2.

  In step S101, the system-side human body communication management unit 12 starts a human body communication transmission / reception operation. At this time, the wireless LAN management / control unit 11 shares wireless LAN setting information with the wireless LAN access point 3 at regular intervals, and acquires information on the current line congestion level.

  In step S102, the system-side human body communication managing unit 12 instructs the system-side human body communication transmitting / receiving unit 9 to call the opposite device (terminal 2) in the human body communication. In step S103, the system side human body communication managing unit 12 determines whether the system side human body communication transmitting / receiving unit 9 has received a response from the opposite device. If there is a response, the system side human body communication managing unit 12 proceeds to step S104. In step S105, the process waits for a predetermined time and returns to step S102.

  In step S104, the system side human body communication managing unit 12 uses the human body communication authentication ID received by the system side human body communication transmitting / receiving unit 9 as a wireless LAN with the wireless LAN access point 3 registered in the system side human body communication setting area 20. Compared with the human body communication authentication ID of the terminal that permits connection, if there is a match, it is determined as a compatible terminal, and the process proceeds to step S106. If there is no match, it is determined as a non-compliant terminal, and the process returns to step S102.

  In step S106, the system-side human body communication management unit 12 acquires the wireless LAN setting information based on the current wireless LAN setting information and the retransmission upper limit number information corresponding to the line congestion level from the wireless LAN management / control unit 11. Then, the system side human body communication transmitting / receiving unit 9 is instructed and transferred to the opposite device by human body communication.

  After transferring the wireless LAN setting information and the retransmission upper limit number information to the opposite device, in step S107, the wireless LAN access point 3 proceeds to step S108 if there is a wireless LAN connection request from the opposite device, and there is no request. Advances to step S109. In step S109, the wireless LAN access point 3 returns to step S107 until the specified time elapses, and after the specified time elapses, the wireless LAN access point 3 processes it as a timeout, and proceeds to step S110.

  In step S108, the wireless LAN access point 3 establishes a wireless LAN connection with the opposite device, and the system side device 1 thereafter performs wireless LAN communication with the opposite device. In step S110, as long as the wireless LAN access point 3 is operating, the process returns to step S102, and the call operation via human body communication is continued to search for another terminal 2.

  FIG. 6 is a flowchart for explaining the operation when the terminal 2 shown in FIG. 1 establishes wireless LAN communication with the system-side device 1.

  In step S201, if a wireless LAN profile that is valid for human body communication cooperation exists in the wireless LAN setting area 33, the process proceeds to step S202 to start a human body communication transmission / reception operation and wait for a terminal call from the system side device 1 by human body communication. . In step S203, the terminal-side human body communication managing unit 25 determines whether the terminal-side human body communication transmitting / receiving unit 8 has received a terminal call by human body communication from the opposite device (system-side device 1). Proceed to step S204.

  In step S204, the terminal-side human body communication managing unit 25 instructs the terminal-side human body communication transmitting / receiving unit 8 to transmit the human body communication authentication ID and the wireless LAN setting information transfer request to the opposite device. In step S205, it is determined whether or not wireless LAN setting information has been received. If received, the process proceeds to step S206. If not received, the process proceeds to step S207. In step S207, the terminal-side human body communication management unit 25 returns to step S205 until the reception waiting timer expires, and processes as a timeout when the reception waiting timer expires, returns to step S203, and returns from the next opposite device. Wait for a terminal call.

  In step S206, the wireless LAN control unit 24 uses the basic information (SSID, IP address, frequency, encryption / authentication method, etc.) included in the wireless LAN setting information transferred from the terminal-side human body communication management unit 25 as the wireless LAN setting. Write in the wireless LAN setting file actually used by the terminal 2 in the area 33. In step S208, the wireless LAN control unit 24 compares the upper limit number of retransmissions stored in the wireless LAN setting area 33 with the upper limit number of retransmissions received from the system-side apparatus 1, and determines the smaller value as the wireless LAN transmission / reception unit 6 Set to. In step S209, the operation of the wireless LAN transmission / reception unit 6 is started, connected to the system-side device 1, and wireless LAN communication is performed thereafter.

  FIG. 7 is a diagram illustrating an example of wireless LAN frame retransmission upper limit number setting in the terminal 2. The table of FIG. 7 shows an example of various wireless LAN communication setting information and human body communication link information stored in the wireless LAN setting area 33 of the terminal 2, similar to the table of FIG. 3. In this example, only the profile 3 has the human body communication cooperation flag enabled. The basic information and the upper limit number of retransmissions of profiles 1 and 2 in which this flag is invalid are set in advance, and the wireless LAN transmission / reception unit 6 performs wireless LAN communication based on such information.

  The basic information of the profile 3 in which the human body communication cooperation flag is valid is transmitted as wireless LAN connection information from the system side device 1 via human body communication. Although the upper limit number of retransmissions of profile 3 is determined in advance, the upper limit number of retransmissions actually applied by the terminal 2 is determined according to the upper limit number of retransmissions transmitted from the system side device 1 by human body communication.

  In the terminal 2, the upper limit number of retransmissions stored in the wireless LAN setting area 33 is compared with the upper limit number of retransmissions transmitted by the human body communication from the system side device 1, and the smaller value is used as the actual upper limit number of retransmissions. Set in the wireless LAN transceiver 6. In the example of FIG. 7, the number of retransmission conditions of profile 3 stored in advance in the wireless LAN setting area 33 is “20” for the management frame, “6” for the control frame, and “6” for the data frame. The upper limit number of retransmissions transmitted from the system side apparatus 1 by human body communication is “10” for the management frame, “5” for the control frame, and “7” for the data frame. The smaller value is adopted as the upper limit number of retransmissions actually applied by the wireless LAN transmitting / receiving unit 6. That is, the management frame is “10”, the control frame is “5”, and the data frame is “6”.

  7 is an example in which the wireless LAN line status is free. If the wireless LAN line status is busy, for example, the upper limit number of retransmissions transmitted from the system side apparatus 1 by human body communication is set. The management frame may be “6”, the control frame may be “1”, and the data frame may be “3”.

  In the embodiment of the present invention described so far, the example in which the system-side device and the terminal communicate by wireless LAN communication and human body communication has been described, but other wireless communication methods are also applicable. For example, infrared communication, Bluetooth communication, or the like may be used instead of human body communication.

  The present invention is applicable to a wireless communication system, a wireless communication method, a system side device, and a terminal.

DESCRIPTION OF SYMBOLS 1 System side apparatus 2 Terminal 3 Wireless LAN access point 4 Overall control part 5 Communication control part 6 Wireless LAN transmission / reception part 7 System side memory | storage part 8 Terminal side human body communication transmission / reception part 9 System side human body communication transmission / reception part 10 Terminal side memory | storage part 11 Wireless LAN management / control unit 12 System side human body communication management unit 13 Wireless LAN access point setting management unit 14 Line status monitoring unit 15 Retransmission upper limit number determination unit 16 Wireless LAN access point connection information generation unit 17 System side human body communication connection control unit 18 System Side human body communication control unit 19 Wireless LAN line status-retransmission upper limit number table holding region 20 System side human body communication setting region 21 Wireless LAN antenna 22 Display unit 23 Key unit 24 Wireless LAN control unit 25 Terminal side human body communication management unit 26 Terminal side wireless LAN connection control unit 27 Terminal side wireless LAN communication control unit 2 Retransmission limit number setting unit 29 wireless LAN access point connection information extracting section 30 terminal-side body communication connection controller 31 terminal body communication controller 32 program storage area 33 wireless LAN setting area 34 terminal body communication setting area

Claims (13)

Wireless communication including a system-side device and a terminal, wherein the system-side device and the terminal communicate using a first wireless communication method and a second communication method different from the first wireless communication method A second communication method is human body communication;
The system-side device includes a line status monitoring unit that monitors a line status of communication according to the first wireless communication scheme, and a retransmission upper limit that determines a frame retransmission upper limit count in the first wireless communication scheme based on the channel status. Frequency determination means, and transmission means for transmitting the determined frame retransmission upper limit number of times to the terminal by the second communication method,
The terminal includes: a receiving unit configured to receive a frame retransmission upper limit number of times in the second communication scheme from the system side device; a retransmission upper limit number setting unit configured to set a value of the frame retransmission upper limit number received by the receiving unit; A wireless communication system comprising: communication means for communicating with the system-side apparatus using the first wireless communication method using the frame retransmission upper limit number set by the retransmission upper limit number setting means. Wireless communication including a system-side device and a terminal, wherein the system-side device and the terminal communicate using a first wireless communication method and a second communication method different from the first wireless communication method A system,
The system-side device includes a line status monitoring unit that monitors a line status of communication according to the first wireless communication scheme, and a retransmission upper limit that determines a frame retransmission upper limit count in the first wireless communication scheme based on the channel status. Frequency determination means, and transmission means for transmitting the determined frame retransmission upper limit number of times to the terminal by the second communication method,
The terminal includes: a receiving unit configured to receive a frame retransmission upper limit number of times in the second communication scheme from the system side device; a retransmission upper limit number setting unit configured to set a value of the frame retransmission upper limit number received by the receiving unit; Communication means for communicating with the system side device using the first wireless communication method using the frame retransmission upper limit number set by the retransmission upper limit number setting means ;
The frame retransmission limit number, a management frame, a control frame, a wireless communication system, wherein Rukoto is set individually for each radio frame type of the data frame. Wireless communication including a system-side device and a terminal, wherein the system-side device and the terminal communicate using a first wireless communication method and a second communication method different from the first wireless communication method A second communication method is human body communication;
A line status monitoring step in which the system side device monitors a line status of communication by the first wireless communication method;
The system side apparatus determines a retransmission upper limit number of times for determining a frame retransmission upper limit number of times in the first wireless communication scheme based on the line status;
A transmission step in which the system-side apparatus transmits the determined frame retransmission upper limit number of times to the terminal in the second communication method;
A receiving step in which the terminal receives the upper limit number of frame retransmissions in the second communication method from the system side device;
A retransmission upper limit count setting step in which the terminal sets a value of the frame retransmission upper limit count received in the reception step;
A wireless communication method comprising: a communication step in which the terminal communicates with the system-side apparatus using the first wireless communication method using the set upper limit number of retransmissions. Wireless communication including a system-side device and a terminal, wherein the system-side device and the terminal communicate using a first wireless communication method and a second communication method different from the first wireless communication method A method,
A line status monitoring step in which the system side device monitors a line status of communication by the first wireless communication method;
The system side apparatus determines a retransmission upper limit number of times for determining a frame retransmission upper limit number of times in the first wireless communication scheme based on the line status;
A transmission step in which the system-side apparatus transmits the determined frame retransmission upper limit number of times to the terminal in the second communication method;
A receiving step in which the terminal receives the upper limit number of frame retransmissions in the second communication method from the system side device;
A retransmission upper limit count setting step in which the terminal sets a value of the frame retransmission upper limit count received in the reception step;
The terminal, viewed contains a communication step of communicating with the first wireless communication scheme and the system side device using the retransmission limit number of times the set,
The radio communication method according to claim 1, wherein the upper limit number of frame retransmissions is individually set for each radio frame type of a management frame, a control frame, and a data frame . A system-side device that communicates using a first wireless communication method and a second communication method different from the first wireless communication method,
A line status monitoring unit that monitors a channel status of communication by the first wireless communication method, a retransmission upper limit number determining unit that determines a frame retransmission upper limit number in the first wireless communication method based on the channel status, Transmission means for transmitting the determined upper limit number of frame retransmissions by the second communication method ,
The frame retransmission limit number, a management frame, a control frame, the system side device according to claim Rukoto is set individually for each radio frame type of the data frame. A system-side device that communicates using a first wireless communication method and a second communication method different from the first wireless communication method,
A line status monitoring unit that monitors a channel status of communication by the first wireless communication method, a retransmission upper limit number determining unit that determines a frame retransmission upper limit number in the first wireless communication method based on the channel status, Transmission means for transmitting the determined upper limit number of frame retransmissions by the second communication method,
The second communication method, wherein a to Resid stem side apparatus that the human body communication. A terminal that communicates using a first wireless communication method and a second communication method different from the first wireless communication method;
A receiving unit configured to receive a frame retransmission upper limit number of times in the second communication method; a retransmission upper limit number setting unit configured to set a value of the frame retransmission upper limit number received by the receiving unit; and a retransmission upper limit number setting unit. Communication means for performing communication in the first wireless communication system using the frame retransmission upper limit number of times ,
The frame retransmission limit number, management frames, control frames, is set individually for each radio frame type of the data frame terminal, wherein Rukoto. A terminal that communicates using a first wireless communication method and a second communication method different from the first wireless communication method;
A receiving unit configured to receive a frame retransmission upper limit number of times in the second communication method; a retransmission upper limit number setting unit configured to set a value of the frame retransmission upper limit number received by the receiving unit; and a retransmission upper limit number setting unit. Communication means for performing communication in the first wireless communication system using the frame retransmission upper limit number of times,
End end The second communication method you being a human body communication. A first wireless communication scheme, wherein the first wireless communication scheme A communication method in a system-side devices that communicate using a different second communication system,
Line status monitoring means for monitoring a channel status of communication by the first wireless communication method; a retransmission upper limit count determining step for determining a frame retransmission upper limit count in the first wireless communication scheme based on the channel status;
A transmission step of transmitting the determined upper limit number of frame retransmissions in the second communication method ,
The frame retransmission limit number, management frames, control frames, the communication method comprising Rukoto is set individually for each radio frame type of the data frame. A communication method in a system-side apparatus that communicates using a first wireless communication method and a second communication method different from the first wireless communication method,
Line status monitoring means for monitoring a channel status of communication by the first wireless communication method; a retransmission upper limit count determining step for determining a frame retransmission upper limit count in the first wireless communication scheme based on the channel status;
A transmission step of transmitting the determined upper limit number of frame retransmissions in the second communication method,
It said second communication method is a communication method which is a human body communication. A communication method in a terminal that communicates using a first wireless communication method and a second communication method different from the first wireless communication method,
A reception step for receiving the upper limit number of frame retransmissions in the second communication method, a retransmission upper limit number setting step for setting a value of the upper limit number of frame retransmissions received in the reception step , and a retransmission upper limit number setting step . A communication step of performing communication in the first wireless communication scheme using the frame retransmission upper limit number of times ,
The frame retransmission limit number, management frames, control frames, the communication method comprising Rukoto is set individually for each radio frame type of the data frame. A communication method in a terminal that communicates using a first wireless communication method and a second communication method different from the first wireless communication method,
A reception step for receiving the upper limit number of frame retransmissions in the second communication method, a retransmission upper limit number setting step for setting a value of the upper limit number of frame retransmissions received in the reception step, and a retransmission upper limit number setting step. A communication step of performing communication in the first wireless communication scheme using the frame retransmission upper limit number of times,
It said second communication method is a communication method which is a human body communication. The program for making a computer perform the communication method of any one of Claim 9-12.

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