JP6007638B2 - Wireless communication apparatus, control method thereof, and program - Google Patents

Description

  The present invention relates to a wireless communication apparatus, a control method thereof, and a program, and more particularly to a technique for improving the usability of ad hoc mode communication in the IEEE 802.11 standard.

  Wireless LAN technologies such as 802.11a, 802.11g, 802.11n, etc., defined by the IEEE (The Institute of Electrical and Electronic Engineers) 802.11 Task Group, which develops the standards for wireless LAN (Local Area Network), Popular in office or home.

  802.11a is a specification for performing communication using a frequency band of 5 [GHz], while 802.11g is a specification for performing communication using a frequency band of 2.4 [GHz]. 802.11n is a wireless communication technology called MIMO (Multiple Input Multiple Output) that extends a data transmission / reception band by combining a plurality of antennas on the transmission side and the reception side.

In the 802.11a / 11g / 11n specification, the connection mode is divided into two modes: infrastructure mode and ad hoc mode.
In the infrastructure mode, a station that is a wireless LAN terminal exists around an access point, and data transmission between a station and another station is performed via the access point. It is often used in environments such as offices and homes and can be said to be a general connection form.

  On the other hand, in the ad hoc mode, there is no access point, and data transmission between stations is performed directly between stations. Therefore, the use of an access point is not necessary.

  However, when communicating in ad hoc mode (hereinafter referred to as ad hoc communication) between multiple devices, it is necessary for each device to know the status of all devices belonging to the network. Since it is often used in a limited manner and the setting method for connection is complicated, the 802.11a / g / n specification is not widespread more than the role as an auxiliary communication method.

  However, in recent years, in addition to communication terminals such as personal computers, communication devices equipped with a wireless LAN communication function have increased to small terminals such as mobile phones, digital cameras, printers, and portable audio devices. Of course, these communication devices can also communicate via an access point. However, in the case of using only for data communication between communication devices, for example in the case of a digital camera and a printer, it is more accessible than connecting via an access point. It is better to connect directly ad-hoc without points.

  Therefore, Wi-Fi Alliance, which is an industry group aimed at promoting the spread of wireless LAN products, is studying specifications regarding wireless setting methods and connection methods for direct communication between terminals.

For example, in Non-Patent Document 1, as a basic concept, each communication device has a software access point function, and one of the communication devices among a plurality of compatible devices participating in the network is actually a software access point. Has been shown to work.
When the software access point behaves like a normal access point, it becomes possible to perform the connection procedure of the maximum transmission rate and encryption method as in the infrastructure mode.

  In Non-Patent Document 1, each communication device that participates in a certain network is defined as a P2P Device, and the network is defined as a P2P Group. In the P2P Group, a P2P Device that actually uses the function of the software access point is defined as a P2P Group Owner, and a P2P Device other than the P2P Group Owner is defined as a P2P Client. A procedure for selecting a P2P Group Owner (hereinafter referred to as a group owner) from a plurality of P2P Devices is defined as Group Owner Negotiation.

  The non-patent document 1 describes a group owner determination procedure (Group Owner Negotiation) in which three communication devices that are desired to connect to each other have a GO Negotiation Request frame, a GO Negotiation Response frame, and a GO Negotiation Confirmation frame (3-way). ) To exchange information and decide.

  An example of the Group Owner Negotiation sequence is shown in FIG. As illustrated, first, the wireless communication apparatus 100 transmits a probe request frame (sequence S101). The wireless communication apparatus 200 that has received the probe request frame returns a probe response frame (sequence S102). When the wireless communication device 100 receives the probe response frame and recognizes that another wireless communication device exists in a communicable place, the wireless communication device 100 starts a group owner negotiation by transmitting a GO negotiation request frame ( Sequence S103). The wireless communication apparatus 200 that has received the GO negotiation request frame returns a GO negotiation response frame (sequence S104).

  The GO negotiation request frame includes P2P IE (Peer-to-Peer Information Element) and WPS IE (Wi-Fi Protected Setup Information Element). The P2P IE includes information such as a group owner intent value indicating the degree of desire to become a P2P Group Owner and a Channel indicating a supported channel.

  Receiving the GO negotiation request frame, the wireless communication apparatus 200 transmits a GO negotiation response frame. Similar to the GO negotiation request frame, the GO negotiation response frame includes a group owner intent value, a channel, and the like within the P2P IE.

  The wireless communication apparatus 100 that has received the GO negotiation response frame determines the P2P group owner by the procedure of the flowchart shown in FIG. 9, and notifies the result to the wireless communication apparatus 200 by the GO negotiation completion frame (sequence S105). The wireless communication apparatus 200 that has received the GO negotiation request frame also determines the P2P group owner according to the procedure of the flowchart shown in FIG. That is, radio communication apparatuses 100 and 200 determine the P2P group owner by the same procedure. Hereinafter, the operation of the wireless communication apparatus 100 will be described.

  As shown in FIG. 9, radio communication apparatus 100 determines whether or not group owner intent value x2 of radio communication apparatus 200 is equal to group owner intent value x1 of the own apparatus (step ST101). If they are not equal, the magnitude relationship between x1 and x2 is determined (step ST102), and the wireless communication device with the larger group owner intent value is set as the P2P group owner (steps ST102 to ST104).

  When the group owner intent value is the same value, it is determined using a tie break bit value (Tie Break Bit) (steps ST105 to ST107).

  Here, the tie break bit value means that a wireless communication device that issues a GO negotiation request frame is set to 1 or 0 at random, and is included in the GO negotiation request frame and transmitted. In the GO negotiation response frame, the GO negotiation request frame It is a value that is set to toggle and return the tie break bit value included in.

  If both group owner intent values are 15, the P2P group owner determination procedure is failed (step ST107). The group owner intent value is specified as an integer from 0 to 15.

  As described above, a device (group owner) to be a soft access point can be determined by the connection method described in Non-Patent Document 1, and P2P communication between devices can be performed without an access point.

  On the other hand, in recent years, infrastructure that can connect to the Internet using a 3G telephone line of a mobile phone such as a smartphone has been established all over the world. Therefore, a small router that bridges the 3G line and the wireless LAN line has been commercialized as a tool for the wireless LAN device to connect to the Internet using the 3G line.

  Recently, the number of smartphones and mobile terminals equipped with a wireless LAN has increased, and when a 3G line is connected or there is a wireless LAN access point nearby, it is possible to connect to the Internet via a wireless LAN. Yes.

  Furthermore, they are equipped with the ad hoc function of Wi-Fi Peer-to-Peer (P2P), which is a prior art, and when connecting print data from a smartphone to a printer, for example, it connects directly without going through an access point. It is also possible. At that time, either the smartphone or the printer becomes the owner.

  However, when you want to use a smartphone equipped with a wireless LAN as an alternative to a router, for example, you can connect a PC and a smartphone directly and decide the smartphone as the owner, so that the PC can connect to the Internet via a 3G line from the smartphone. It becomes possible.

  Therefore, if you have other communication means such as a 3G line that is different from the wireless LAN and want to connect to the Internet via other communication means, the terminal that has the 3G line such as a smartphone becomes the group owner as an access point. Should.

  However, as described above, in Non-Patent Document 1, since it is determined by the Group Owner Intent value and Tie Break Bit of each device as a determination to determine the group owner, it is possible to use other communication methods as an element for determining the group owner. The provision of a bridge function is not considered.

  The present invention has been made to solve such a problem, and an object thereof is to have another communication method in a wireless network formed by a plurality of wireless communication devices having an access point function of the wireless network. It is to provide a bridge function to a wireless communication device with an optimum configuration.

To achieve the above object, according to a first aspect of the present invention, there is provided a wireless communication apparatus having a wireless LAN network access point function and a function of connecting to a network by another communication means different from the wireless LAN network. An intent value storage unit for storing an intent value indicating a degree of desire to become an access point defined by a predetermined standard, and communication from another wireless communication device to a network by other communication means A bridge parameter storage unit for storing a bridge parameter that is information regarding whether or not to bridge the function, an exchange unit for exchanging the bridge parameter and the intent value with another radio communication device, and another radio communication exchanged based on said bridge parameter and the intent value of the device and the own device, JiSo The providing wireless communication apparatus characterized by comprising means for determining as an access point, a.

The present invention provides a second aspect, there is provided a control method of a wireless communication apparatus having a function of connecting to the network by different other communication means to the access point function and the wireless LAN network of the wireless LAN network, predetermined An intent value storage step for storing an intent value indicating the degree of desire to become an access point defined by the standards of the above, and a communication function from another wireless communication device to a network connection function by other communication means A bridge parameter storing step for storing a bridge parameter that is information relating to whether or not bridging is possible, a replacement step for exchanging the bridge parameter and the intent value with another wireless communication device, another wireless communication device that has been replaced, and based on said bridge parameter and the intent value of the device itself, the self apparatus Providing and determining as access points, the control method of a wireless communication device which comprises a.

Further, the present invention provides, as a third aspect, the wireless communication apparatus having a function of connecting to the network by different other communication means to the access point function and the wireless LAN network of the wireless LAN network, defined by a predetermined reference Intent value storage processing for storing an intent value indicating the degree of desire to become an access point, and whether or not communication from other wireless communication devices can be bridged to a network connection function by other communication means Bridge parameter storage processing for storing bridge parameters, which are information related to the above, exchange processing for exchanging the bridge parameter and the intent value with another wireless communication device, the exchanged other wireless communication device, and the bridge of its own device based on the parameter and the intent value, the access point to the own device It provides a program characterized by a process of determining by, that is the execution.

  According to the present invention, in a wireless network formed by a plurality of wireless communication devices having an access point function of a wireless network, it is possible to provide a bridge function to a wireless communication device having another communication method with an optimal configuration. It becomes.

1 is a block diagram of a wireless communication device 1 according to an embodiment of the present invention. It is a sequence diagram which shows the procedure of the group owner negotiation of the radio | wireless communication apparatus which concerns on this embodiment. FIG. 3 is a flowchart (part 1) illustrating a procedure for determining a group owner in the group owner negotiation of FIG. 2; FIG. 9 is a flowchart (part 2) illustrating a procedure for determining a group owner in the group owner negotiation of FIG. 2; It is a flowchart figure which shows another procedure which determines a group owner in the group owner negotiation of FIG. It is a sequence diagram which shows the procedure of the group owner negotiation and group owner renegotiation of the radio | wireless communication apparatus which concerns on this embodiment. It is a state transition diagram which shows the procedure of the group owner negotiation and group owner renegotiation of the radio | wireless communication apparatus which concerns on this embodiment. It is a sequence diagram which shows the procedure of the group owner negotiation of the conventional radio | wireless communication apparatus. It is a flowchart figure which shows the procedure which determines a group owner in the group owner negotiation of FIG.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
<Configuration and schematic operation of wireless communication device>
FIG. 1 is a block diagram of a wireless communication apparatus 1 according to the present embodiment. As shown in FIG. 1, the wireless communication device 1 includes a wireless communication module 2 and a 3G communication module 3. Here, the wireless communication module 2 conforms to the IEEE802.11 standard.

  The wireless communication module 2 includes a bus 20, a CPU (Central Processing Unit) 21 connected to the bus 20, a memory 22, an external I / F (interface) 23 such as a USB (Universal Serial Bus), and a MAC (Media Access Control). ) H / W (hardware) 24 is provided. The memory 22 includes a firmware 29 executed by the CPU 21 and a ROM (Read Only Memory) for storing various fixed data, and a RAM (Random Access Memory) serving as a work area when the CPU 21 operates.

  The wireless communication module 2 includes a PHY (physical layer) unit 25 connected to the MAC hardware 24 and an antenna 28 connected to the PHY unit 25. The wireless communication module 2 includes a clock generation unit, a power supply unit, and the like in addition to these, but these general components are omitted.

  The firmware 29 is necessary for controlling a wireless LAN protocol, such as a communication protocol control unit 292 that generates a transmission data frame based on data received from the external I / F 23 and a parameter analysis unit 291 that analyzes received information. A function is implemented. Some of these functions can be provided outside the external I / F 23.

  The PHY unit 25 includes a baseband unit 26 and an RF (Radio Frequency) unit 27. The baseband unit 26 performs data modulation processing from the MAC hardware 24 during transmission, and performs data demodulation processing from the RF unit 27 during reception. The RF unit 27 converts a baseband signal from the baseband unit 26 into a radio frequency signal and transmits it to the antenna 28 at the time of transmission, and converts the radio frequency signal from the antenna 26 into a baseband signal at the time of reception. To the unit 26.

  Further, the memory 22 stores a group owner intent value 221 and a bridge parameter 222 that are used in the group owner negotiation described later.

  The 3G communication module 3 is a module for connecting to the Internet or the like using a 3G telephone line. The wireless communication device 1 has a function of bridging communication data transmitted / received to / from another wireless communication device via the wireless communication module 2 to the 3G communication module 3. It is not necessary to limit to 3G lines, and other communication standards such as IEEE802.16 may be used.

<Group Owner Negotiation>
As the firmware 29, programs and data necessary for executing group owner negotiation compliant with Wi-Fi Direct are installed as in the conventional apparatus.

  FIG. 2 is a sequence diagram illustrating a procedure for determining a P2P group owner with another wireless communication device 4 having the same configuration as the wireless communication device 1. Here, a case where the wireless communication apparatus 1 starts a search operation will be described. Note that each wireless communication apparatus inputs control information such as the group owner intent value 221 and the bridge parameter 222 to the memory 22 via, for example, the external I / F 23 in advance and holds the control information. The same applies to the wireless communication device 4.

  First, the wireless communication device 1 transmits a probe request frame (sequence S1). The wireless communication device 4 that has received the probe request frame returns a probe response frame (sequence S2). When the wireless communication device 1 recognizes that another wireless communication device exists at a communicable location by receiving the probe response frame, the wireless communication device 1 starts a group owner negotiation by transmitting a GO negotiation request frame ( Sequence S3). Receiving the GO negotiation request frame, the wireless communication device 4 returns a GO negotiation response frame (sequence S4).

  Next, the wireless communication device 1 transmits a bridge parameter request frame (sequence S5). This frame is a frame for requesting the bridge parameter 222 to the wireless communication device 4 and notifying the bridge parameter 222 of the wireless communication device 1. The wireless device 4 that has received the bridge parameter request frame includes the bridge parameter 222 in the bridge parameter response frame and returns this (sequence S6).

  Thus, as shown in FIG. 2, in addition to the method of exchanging bridge parameter request / response frames and entering the group owner determination procedure in the next stage, there is a method of including information on bridge parameters in the GO negotiation request / response frames. preferable. In this case, information regarding the bridge parameter is included in a user-definable portion of the GO negotiation request frame or the GO negotiation response frame.

  For example, the GO negotiation request frame has a format in which variable-length data follows the header. The bridge parameter 222 of the wireless communication device 1 is included as data of a “Request Device MaxClients info” frame in the data. On the other hand, the bridge parameter 222 of the wireless communication device 4 is included as data of the “Response Device MaxClients info” frame in the GO negotiation response frame. In this way, both sides exchange each other's bridge parameters.

Alternatively, a completely new user definition may be performed, and the bridge parameter 222 may be included as “Bridge Info” data.
These methods of exchanging the GO negotiation request / response frame including the bridge parameter do not require a significant protocol change compared to the method of setting a new sequence as shown in FIG.

  The reason for exchanging the bridge parameter 222 is that the bridge parameter 222 is bridged to the 3G communication module 3 via the group owner even when the device becomes the group owner, even in the P2P environment. This is because the parameter means that it can be connected to an external network (for example, the Internet).

  In configuring the P2P network, it is desirable that the P2P network can be connected to an external network. Therefore, a device having a bridge function should be a group owner.

  The wireless communication device 1 that has received the bridge parameter 222 of the wireless communication device 4 determines the P2P group owner according to the procedures of the flowcharts shown in FIGS. 3 and 4, and sends the result to the wireless communication device 4 using the GO negotiation completion frame. Notification is made (sequence S7). Further, the wireless communication device 4 also determines the P2P group owner according to the procedure of the flowcharts shown in FIGS. That is, the wireless communication apparatuses 1 and 4 determine the P2P group owner by the same procedure. Hereinafter, the operation of the wireless communication device 1 will be described.

  As shown in FIG. 3, first, the device whose bridge parameter 222 is 1 (ON) is determined as the group owner (steps ST5 to 8). When both are set to 1 (Yes in step ST1), it is determined based on the magnitude of the group owner intent value 221 (steps S2 to S4). In this case, the processing when the group owner intent value 221 is the same is omitted from the description, but it may be the same as in the prior art.

  If the value of the bridge parameter 222 is 0 (OFF) in both the wireless communication device 1 and the wireless communication device 4 (No in step ST1, No in step ST5, No in step ST7), the process proceeds to FIG.

  The procedure for determining the group owner in the flowchart of FIG. 4 is the same as the determination procedure of FIG. Therefore, the wireless communication device 1 determines whether or not the group owner intent value y4 of the wireless communication device 4 is equal to the group owner intent value y1 of its own device (step ST9). If they are not equal, the magnitude relationship between y1 and y4 is determined (step ST10), and the wireless communication device with the larger group owner intent value is set as the P2P group owner (steps ST10 to ST12).

  If the group owner intent value is the same value, it is determined using a tie break bit value (Tie Break Bit) (steps ST13 to ST14). If both group owner intent values are 15, the P2P group owner determination procedure is failed (step ST15).

  In addition to the group owner determination procedure shown in the flow of FIGS. 3 and 4, a determination procedure as shown in FIG. 5 is also preferable. In the determination procedure of FIG. 5, when the value of the bridge parameter 222 is 1 (ON), the group owner intent value 221 is increased by a certain value (steps ST21 to ST24). The flow after step ST25 is the same as FIG.

  In addition, it may be changed to a mode in which the constant value is increased, and may be changed to a predetermined value, for example, 15 (maximum value in specification).

<Updating group owner>
Next, a procedure for updating the group owner determined by the procedure of FIG. 2 will be described with reference to a sequence diagram as shown in FIG. Here, the procedure is to exchange the value of the bridge parameter 222 when exchanging the GO negotiation request frame and the GO negotiation response frame. In the time axis of FIG. 6 (vertical line extending downward from the wireless communication devices 1 and 4), a hatched rectangle indicates a time during which the wireless communication devices 1 and 4 are the group owner.

  As shown in the figure, the probe request frame and the probe response frame are exchanged between the wireless communication device 1 and the wireless communication device 4 (sequences S21 and S22), and then the group owner is negotiated to determine the group owner. (Sequences S23 to S25). Here, it is assumed that the wireless communication device 4 becomes the group owner. Although not shown, there are P2P clients other than the wireless device 1 in the P2P group.

  Assume that the value of the bridge parameter 222 is changed from 1 (ON) to 0 (OFF) when the wireless communication device 4 is operating as a group owner. The wireless communication device 4 transmits a frame for notifying the change of the bridge parameter 222 to the P2P client (here, the wireless communication device 1) (sequence S26).

  The wireless communication device 1 that has received the frame for notifying the change transmits a GO negotiation request frame to the wireless communication device 4 when it wishes to become the group owner (described later with reference to FIG. 7) (sequence S27). ). Thereby, the group owner renegotiation starts.

  The information exchanged in the sequences S27 to S29 is the same as the information exchanged in the first sequences S23 to S25. Here, it is assumed that the wireless communication device 1 is newly determined as the group owner and notified to the wireless communication device 4 by the GO negotiation completion frame (sequence S29).

  When the wireless communication device 4 is notified by the GO negotiation completion frame that a wireless communication device other than itself has been newly determined by the group owner, the wireless communication device 1 that is the current P2P client and other devices not shown The wireless communication apparatus is notified of disconnection release and owner change of the wireless network of which the group owner is a group owner (sequence S30).

  FIG. 7 is a state transition diagram illustrating the operations of the wireless communication device 1 and the wireless communication device 4 after the sequences S26 to S30 in FIG. In this figure, steps ST31 to ST39 are operations of the wireless communication device 4, and steps ST41 to ST48 are operations of the wireless communication device 1.

  Note that P2P clients other than the wireless communication device 1 operate in the same manner as the wireless communication device 1. That is, the wireless communication device 4 that is the group owner sequentially executes the flow shown in FIG. 7 for all the wireless communication devices that are P2P clients.

  When the bridge parameter changes from ON to OFF (step ST32: Yes) in the idle (standby) state (step ST31), the wireless communication device 4 transmits a frame for notifying the power supply status change information as a P2P client. 1 (step ST33). This step corresponds to the sequence S26 in FIG.

  When the wireless communication device 1 receives the frame for notifying the power supply status change information in the idle state (step ST41) (step ST42), the wireless communication device 1 changes the group owner, that is, whether or not it wishes to become the group owner. Is determined (step ST43).

  Here, for example, the wireless communication device 1 determines that it desires to become the group owner when the bridge parameter that was OFF at the time of the group owner negotiation when it becomes a P2P client changes to ON.

  When the wireless communication device 1 wishes to change the group owner (step ST43: Yes), the wireless communication device 1 issues a group owner negotiation request and transmits it to the wireless communication device 4 (step ST44). This step corresponds to the sequence S27 in FIG. Further, when the change of the group owner is not desired (step ST43: No), the process shifts to the idle state (step ST41).

  After transmitting the frame for notifying the bridge parameter change, the wireless communication device 4 waits for a group owner negotiation request frame (step ST34), and if received within a predetermined time, issues a group owner negotiation response, and the wireless communication device 1 (step ST35). This step corresponds to the sequence S28 in FIG. When the group owner negotiation request frame is not received within a predetermined time (ST34: timeout), the process shifts to an idle state (step ST31).

  After transmitting the group owner negotiation request frame, the wireless communication device 1 waits for a group owner negotiation response frame (step ST45). When the wireless communication device 1 receives the frame within a predetermined time, the wireless communication device 1 determines the group owner by the flow shown in FIGS. After that, a group owner negotiation completion is issued and transmitted to the wireless communication device 4 (step ST46). This step corresponds to the sequence S29 in FIG. When the group owner negotiation response frame is not received within a predetermined time (step ST45: timeout), the process shifts to an idle state (step ST41).

  After transmitting the group owner negotiation response frame, the wireless communication device 4 waits for the group owner negotiation completion frame (step ST36), and when received within a predetermined time, It is determined whether or not the group owner has changed (step ST37). If it is determined that the group owner has changed (step ST37: Yes), a disconnection release notice for the network group of which the group owner is the group owner is issued to the P2P client (step ST38), and the disconnection is executed. (Step ST39).

  When the wireless communication device 4 does not receive the group owner negotiation completion frame within a predetermined time (step ST36: timeout) and determines that the group owner does not change (step ST37: No), the wireless communication device 4 is in an idle state (step ST37). Move to ST31).

  After transmitting the group owner negotiation completion frame, wireless communication apparatus 1 determines whether or not the group owner has changed, that is, whether or not the group owner has become the group owner (step ST47). When it is determined that the group owner has been changed (step ST47: Yes), the owner process is started (step ST48). When it is determined that the group owner is not changed (step ST47: No), the idle state (step Move to ST41).

  According to the above-described embodiment, in a wireless network formed by a plurality of wireless communication devices having a simple access point function of a wireless network, a bridge function to a wireless communication device having another communication method is provided with an optimal configuration. It becomes possible to do.

1, 4 Wireless communication device 2 Wireless communication module 3 3G communication module 20 Bus 21 CPU
22 Memory 221 Intent value 222 Bridge parameter 23 External I / F
24 MAC hardware 25 PHY unit 26 Baseband unit 27 RF unit 28 Antenna 29 Firmware 291 Parameter control unit 292 Communication protocol control unit

Wi-Fi Peer-to Peer (P2P) Technical Specification Version 1.00

Claims (6)

A wireless communication apparatus having a function of connecting to the network by different other communication means to the access point function and the wireless LAN network of the wireless LAN network,
An intent value storage unit that stores an intent value indicating a degree of desire to become an access point defined by a predetermined standard;
A bridge parameter storage unit that stores a bridge parameter that is information on whether or not it is possible to bridge communication from another wireless communication device to a network connection function by other communication means ;
Exchange means for exchanging the bridge parameter and the intent value with another wireless communication device;
Means for determining the own device as an access point based on the other wireless communication device exchanged and the bridge parameter and the intent value of the own device ;
A wireless communication apparatus comprising:   2. The wireless communication apparatus according to claim 1, wherein a frame for requesting information corresponding to the bridge parameter of the wireless communication apparatus of the exchange partner is transmitted at the time of exchange by the exchange means.   At the time of exchange by the exchange means, a request for information corresponding to the bridge parameter of the exchange partner wireless communication device is embedded in a frame requesting information on the intent value of the exchange partner wireless communication device, and the exchange partner The wireless communication device according to claim 1, wherein the wireless communication device transmits to the wireless communication device.   The wireless communication apparatus according to claim 1, wherein the bridge parameter is a binary value of ON and OFF. A control method of a wireless communication apparatus having a wireless LAN network access point function and a function of connecting to a network by other communication means different from the wireless LAN network ,
An intent value storage step for storing an intent value indicating a degree of desire to become an access point defined by a predetermined standard;
A bridge parameter storage step of storing a bridge parameter that is information on whether or not it is possible to bridge communication from another wireless communication device to a network connection function by other communication means ;
An exchange step of exchanging the bridge parameter and the intent value with another wireless communication device;
Based on said bridge parameter and the intent value of another radio communication apparatus and the own apparatus has been replaced, and determining the own device as an access point,
A control method for a wireless communication apparatus, comprising: To a wireless communication device having a wireless LAN network access point function and a function of connecting to the network by other communication means different from the wireless LAN network ,
An intent value storage process for storing an intent value indicating a degree of desire to become an access point defined by a predetermined standard;
A bridge parameter storage process for storing a bridge parameter that is information on whether or not it is possible to bridge communication from another wireless communication device to a network connection function by other communication means ;
An exchange process for exchanging the bridge parameter and the intent value with another wireless communication device;
Based on the other wireless communication device exchanged and the bridge parameter and the intent value of the own device, a process of determining the own device as an access point;
A program characterized by having executed.

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