COMMUNICATION DEVICE, CONTROL METHOD, AND PROGRAM

Abstract

To appropriately communicate operational information for wireless communication when wireless communication is performed in a frequency bandwidth of 240 MHz or more.SOLUTION: A communication device that conforms to IEEE 802.11 series standards communicates operational information related to wireless communication with another communication device. The operational information includes information on frequency bandwidth for wireless communication and information on frequencies. The information on frequency bandwidth includes information indicating whether the frequency bandwidth used in wireless communication is 240 MHz or more. The information on frequencies includes information on frequencies at 80 MHz on a high frequency side in the frequency bandwidth when the frequency bandwidth is 240 MHz or more.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to wireless communication technology. [Background technology]

[0002] The IEEE802.11 series is known as a wireless LAN (Local Area Network) communication standard established by the IEEE (Institute of Electrical and Electronics Engineers). The IEEE802.11 series standards include the IEEE802.11a / b / g / n / ac / ax standards.

[0003] Patent Document 1 discloses that the IEEE802.11ax standard performs wireless communication using Orthogonal Frequency Division Multiple Access (OFDMA). The IEEE802.11ax standard achieves high peak throughput by performing wireless communication using OFDMA.

[0004] In order to further improve throughput and frequency utilization efficiency, the IEEE is considering the formulation of the IEEE802.11be standard as a new standard in the IEEE802.11 series, which is intended to expand the frequency bandwidth to a maximum of 320 MHz. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2018-50133 A Summary of the Invention [Problem to be solved by the invention]

[0006] APs (Access Points) and STAs (Station / Terminal Devices) manage operation information used in wireless communication, such as the communication bandwidth used in wireless communication. Conventionally, in the case of wireless communication using a frequency bandwidth of 240 MHz, there was no method of expressing operation information related to the higher frequency side (i.e., the latter 80 MHz) of the frequency bandwidth.

[0007] In view of the above problems, an object of the present invention is to appropriately communicate operation information for wireless communication when wireless communication is performed in a frequency bandwidth of 240 MHz or more. [Means for solving the problem]

[0008] In order to achieve the above object, a communication device according to one aspect of the present invention has the following configuration. That is, the communication device has a communication means for communicating a management frame including a Channel Width and CCFS (Channel Center Frequency Segment) 0 and CCFS 1 with other communication devices, and the Channel Width field indicating the Channel Width is an EHT Operation Standard conforming to the IEEE (Institute of Electrical and Electronics Engineers) 802.11 series standard. Information field, the Channel Width being selected from a plurality of values ​​including at least a first value and a second value, the first value indicating a 160 MHz bandwidth and the second value indicating a 320 MHz bandwidth. The Channel Width indicates an entire frequency bandwidth used for wireless communication, the entire frequency bandwidth being composed of a primary frequency bandwidth and a secondary frequency bandwidth, the CCFS0 indicates information on a center frequency of a band corresponding to the primary frequency bandwidth, and the CCFS1 indicates information on a center frequency in a band corresponding to the entire frequency bandwidth. . Effect of the Invention

[0009] According to the present invention, operational information for wireless communication in a frequency bandwidth of 240 MHz or more is appropriately communicated. [Brief description of the drawings]

[0010] [Figure 1] FIG. 1 is a diagram illustrating an example of the configuration of a wireless communication system. [Diagram 2] 1A and 1B are diagrams illustrating the configuration of a communication device ((a) an example of a hardware configuration, and (b) an example of a functional configuration). [Diagram 3] An example of the configuration of an EHT Operation Element is shown below. [Figure 4] 11 is a diagram for explaining operational information to be notified when a frequency bandwidth of 160+80 MHz is used. FIG. [Diagram 5] 11 is a diagram for explaining operation information to be notified when a frequency bandwidth of 240 MHz is used. FIG. [Figure 6] 11 is a diagram for explaining operational information to be notified when a frequency bandwidth of 80+160 MHz is used. FIG. [Figure 7] 11 is a diagram for explaining operation information to be notified when a frequency bandwidth of 80+80+80 MHz is used. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] Hereinafter, the embodiments will be described in detail with reference to the attached drawings. Note that the following embodiments do not limit the invention according to the claims. Although the embodiments describe a number of features, not all of these features are essential to the invention, and the features may be combined in any manner. Furthermore, in the attached drawings, the same reference numbers are used for the same or similar configurations, and duplicated descriptions are omitted.

[0012] [System configuration] Fig. 1 shows a wireless communication system according to this embodiment. The wireless communication system in Fig. 1 is a wireless network including an access point (AP) 102 and a plurality of STAs (stations / terminal devices) 103, 104, and 105 as communication devices. The AP 102 has the same functions as the terminal device, except that it has a relay function, and is therefore a form of terminal device. The AP 102 can communicate with each of the STAs 103 to 105 according to a wireless communication method of the IEEE802.11be standard. The STAs 103 to 105 within a circle 101 indicating the range of a signal (wireless frame) transmitted by the AP 102 can communicate with the AP 102.

[0013] In this embodiment, the AP 102 and the STAs 103 to 105 are assumed to be capable of communicating in accordance with the IEEE 802.11be standard. The AP 102 establishes a wireless link with the STAs 103 to 105 through a predetermined association process or the like. The AP 102 and the STAs 103 to 105 are capable of communicating in the 2.4 GHz, 5 GHz, and 6 GHz frequency bands. The frequency bands used by the AP 102 and the STAs 103 to 105 are not limited thereto, and different frequency bands, such as the 60 GHz band, may be used. The AP 102 and the STAs 103 to 105 are also capable of communicating using bandwidths of 20 MHz, 40 MHz, 80 MHz, 160 MHz, 240 MHz, and 320 MHz.

[0014] In addition, the AP 102 and the STAs 103 to 105 can perform OFDMA communication. For example, the AP 102 can realize multi-user (MU) communication by multiplexing signals addressed to multiple users (STAs). In OFDMA communication, a part of the divided frequency band (RU, Resource Unit) is assigned to each STA so as not to overlap, and the carriers assigned to each STA are orthogonal. Therefore, the AP 102 can communicate with multiple STAs in parallel.

[0015] The AP 102 and the STAs 103 to 105 can transmit and receive management frames, which are, for example, MAC (medium access control) frames, conforming to the IEEE802.11 series standard. Specifically, the management frames refer to a Beacon frame, a Probe Request frame / Response frame, and an Association Request frame / Response frame. In addition to these frames, Disassociation frames, Authentication frames, De-Authentication frames, and Action frames are also called management frames. The Beacon frame is a frame that notifies network information. The Probe Request frame is a frame that requests network information, and the Probe Response frame is a response thereto, which is a frame that provides network information. The Association Request frame is a frame that requests a connection, and the Association Response frame is a response thereto, which is a frame that indicates permission for connection or an error. The Disassociation frame is a frame that disconnects a connection. The Authentication frame is a frame that authenticates a remote device, and the De-Authentication frame is a frame that interrupts the authentication of a remote device and disconnects a connection. An Action frame is a frame for performing additional functions other than those mentioned above.

[0016] Also, the AP 102 and the STAs 103 to 105 may be configured to be able to perform MIMO (Multiple-Input And Multiple-Output) communication. In this case, the AP 102 and the STAs 103 to 105 each have multiple antennas, and the transmitting side transmits different signals from each antenna using the same frequency channel. The receiving side simultaneously receives all signals arriving from multiple streams using multiple antennas, and separates and decodes the signals of each stream. In this way, by performing MIMO communication, the AP 102 and the STAs 103 to 105 can communicate more data in the same time compared to when not performing MIMO communication. The AP 102 and the STAs 103 to 105 manage operation parameters (operation information) used for wireless communication, such as communication bandwidth (frequency bandwidth).

[0017] In addition, the AP 102 and the STAs 103 to 105 are described as being compatible with the IEEE 802.11be standard. In addition, the AP 102 and the STAs 103 to 105 may be compatible with at least one of the legacy standards that are standards prior to the IEEE 802.11be standard. The legacy standards are the IEEE 802.11a / b / g / n / ac / ax standards. In this embodiment, at least one of the IEEE 802.11a / b / g / n / ac / ax / be standards is called the IEEE 802.11 series standard. In addition to the IEEE 802.11 series standard, the AP 102 and the STAs 103 to 105 may be compatible with other communication standards such as Bluetooth (registered trademark), Near Field Communication (NFC), Ultra Wideband (UWB), Zigbee, and Multiple Band OFDM Alliance (MBOA). UWB includes wireless USB, wireless 1394, Winet, and the like. The AP 102 and the STAs 103 to 105 may be compatible with a communication standard for wired communication such as a wired LAN.

[0018] [Communication device configuration] 2(a) shows an example of a hardware configuration of a communication device (AP 102, STAs 103 to 105) in this embodiment. The communication device includes a storage unit 201, a control unit 202, a function unit 203, an input unit 204, an output unit 205, a communication unit 206, and an antenna 207 as an example of the hardware configuration.

[0019] The storage unit 201 is configured with one or more memories such as a ROM (Read Only Memory) and a RAM (Random Access Memory), and stores various information such as computer programs for performing various operations described below and communication parameters for wireless communication. Note that, in addition to memories such as ROM and RAM, storage media such as flexible disks, hard disks, optical disks, magneto-optical disks, CD-ROMs, CD-Rs, magnetic tapes, non-volatile memory cards, and DVDs may be used as the storage unit 201. Furthermore, the storage unit 201 may include multiple memories.

[0020] The control unit 202 is configured with one or more processors, such as a CPU (Central Processing Unit) or an MPU (Micro Processing Unit), and controls the communication device by executing a computer program stored in the storage unit 201. The control unit 202 may control the communication device in cooperation with the computer program stored in the storage unit 201 and an OS (Operating System). The control unit 202 may also generate data and signals (radio frames) to be transmitted in communication with other communication devices. The control unit 202 may also include multiple processors, such as multi-core processors, and control the communication device using the multiple processors.

[0021] Furthermore, the control unit 202 controls the functional unit 203 to execute predetermined processes such as wireless communication, imaging, printing, projection, etc. The functional unit 203 is hardware that enables the communication device to execute predetermined processes.

[0022] The input unit 204 receives various operations from the user. The output unit 205 performs various outputs to the user via a monitor screen or a speaker. Here, the output by the output unit 205 may be a display on a monitor screen, a voice output by a speaker, a vibration output, or the like. Note that both the input unit 204 and the output unit 205 may be realized by one module, such as a touch panel. Also, the input unit 204 and the output unit 205 may be integrated with the communication device, or may be separate.

[0023] The communication unit 206 controls wireless communication conforming to the IEEE802.11be standard. In this embodiment, the communication unit 206 is a means for notifying (transmitting) operation information described below to other communication devices. The communication unit 206 may also control wireless communication conforming to other IEEE802.11 series standards in addition to the IEEE802.11be standard, and may control wired communication such as wired LAN. The communication unit 206 controls the antenna 207 to transmit and receive signals (wireless frames) for wireless communication generated by the control unit 202. Note that, if the communication device supports the NFC standard, Bluetooth standard, and the like in addition to the IEEE802.11be standard, the communication unit 206 may control wireless communication conforming to these communication standards. If the communication device can perform wireless communication conforming to multiple communication standards, the communication unit 206 may have a communication unit and an antenna corresponding to each communication standard. The communication device communicates data such as image data, document data, and video data with other communication devices via the communication unit 206. The antenna 207 may be configured as a separate unit from the communication unit 206, or may be configured together with the communication unit 206 as a single module.

[0024] Antenna 207 is an antenna capable of communication in the 2.4 GHz band, the 5 GHz band, and the 6 GHz band. The communication device may have one antenna, or may have a different antenna for each frequency band. In addition, when the communication device has multiple antennas, it may have a communication unit 206 corresponding to each antenna.

[0025] 2B shows an example of a functional configuration of the control unit 202 of the communication device (AP 102, STAs 103 to 105) in this embodiment. The communication device has an operation information determination unit 211, a frame generation unit 212, and a UI (User Interface) control unit 213 as an example of its functional configuration.

[0026] The operational information determination unit 211 determines operational information to be notified to other communication devices. The operational information will be described later. The frame generation unit 212 generates frames to be used for transmission (notification) to other communication devices. The UI control unit 213 performs control for accepting operations on the communication device by the user of the communication device. For example, the UI control unit 213 sets the contents of input from the user obtained from the input unit 204 in the communication device by sending the contents to the operational information determination unit 211.

[0027] [EHT Operation Element Configuration] In this embodiment, the operation information can be notified to other communication devices using a management frame conforming to the IEEE802.11 series of standards. Note that the operation information may be notified using other types of frames. Fig. 3 shows an example of the configuration of an EHT Operation Element 301, which is one of the information elements of a management frame.

[0028] For the Element ID field 302, the Length field 303, and the Element ID Extension field 304, please refer to the explanation in Table 1 shown below. The EHT Operation Information field 305 includes operation information for wireless communication. The operation information includes information for specifying the frequency bandwidth to be used, etc. The information on the frequency bandwidth to be used can be specified by a combination of the EHT Channel Center Frequency Segment field 307 (information on the frequency for wireless communication) included in the EHT Operation Information field 305 and the EHT Channel Width field 308 (information on the frequency bandwidth for wireless communication) included in the Control field 306. For example, when the EHT Channel Width field 308 is 0 and the EHT Channel Center Frequency Segment field 307 is 0, it may indicate that the frequency bandwidth to be used is 160 MHz or less. Also, when the EHT Channel Width field 308 is 0 and the EHT Channel Center Frequency Segment field 307 is other than 0, it may indicate that the frequency bandwidth to be used is 240 MHz. Also, when the EHT Channel Width field 308 is 1, it may indicate that the frequency bandwidth to be used is 320 MHz.

[0029] Also, the EHT Channel Center Frequency Segment field 307 indicates information on which channel is being used for the latter half / high frequency side (for example, the high frequency side including the maximum frequency of the frequency bandwidth, or secondary) 80 MHz or 160 MHz when the frequency bandwidth used is 240 MHz or more. When the frequency bandwidth used is 160 MHz or less, the EHT Channel Center Frequency Segment field 307 may indicate 0. When the frequency bandwidth used is 240 MHz, for example, it is as follows. The EHT Channel Center Frequency Segment field 307 may indicate a channel value corresponding to the center frequency of 160 MHz on the high frequency side when the frequency bandwidth used is 240 MHz, a channel value corresponding to the center frequency of 80 MHz on the high frequency side when the frequency bandwidth used is 160+80 MHz, a channel value corresponding to the center frequency of 160 MHz on the high frequency side when the frequency bandwidth used is 80+160 MHz, and a channel value corresponding to the center frequency of 80 MHz on the high frequency side when the frequency bandwidth used is 80+80+80 MHz. When the frequency bandwidth used is 320 MHz, the EHT Channel Center Frequency Segment field 307 can indicate the channel value corresponding to the center frequency of the secondary (e.g., higher frequency side) 160 MHz when the frequency bandwidth used is 160+160 MHz, and the channel value corresponding to the first frequency of the secondary 160 MHz when the frequency bandwidth is 320 MHz.

[0030] Specific examples of the components of EHT Operation Element 301 as described above are shown in Tables 1, 2, and 3. Table 1 shows an explanation of each field in EHT Operation Element 301, Table 2 shows an explanation of the subfields in EHT Operation Information field 305, and Table 3 shows an explanation of the subfields in Control field 306. The field / subfield names and bit positions / sizes are not limited to those shown in the tables, and similar information may be stored with different field / subfield names or in a different order or size. [Table 1] [Table 2] [Table 3]

[0031] [Explanation of the procedure for notifying operational information] With reference to Figs. 4 to 7, the notification procedure of the operation information configured as above will be described. In this embodiment, the operation information can be notified to other communication devices by using a management frame conforming to the IEEE802.11 series of standards. The operation information is determined / set by the operation information determination unit 211, a management frame including the operation information is generated by the frame generation unit 212, and the generated management frame is transmitted via the communication unit 206. The frequency bandwidth to be used and information on the frequency in the frequency bandwidth (for example, information on the center frequency of the frequency band in the frequency bandwidth (channel value, etc.)) may be set in the communication devices (AP 102, STAs 103 to 105) in advance. Alternatively, the information may be set in the communication devices by the user of the communication devices inputting the information via the input unit 204, or the communication devices may acquire the information by any method.

[0032] Here, items common to Figs. 4 to 7 will be described. The information of 160 MHz on the low frequency side (first half) is notified by a management frame defined in a legacy standard that is a standard before the IEEE802.11be standard, that is, CCFS0, CCFS1, and Channel Width are values ​​notified by a management frame defined in the legacy standard. CCFS0 represents a channel value corresponding to the center frequency of the primary 80 MHz. CCFS1 represents a channel value corresponding to the center frequency of the secondary 80 MHz (160 MHz combined if adjacent to the primary 80 MHz). Channel Width is a value indicating that the primary 80 MHz and the secondary 80 MHz are adjacent to each other. CCFS0, CCFS1, and Channel Width may be notified by a VHT Operation element, a HT Operation element, and 6 GHz Operation information, which are elements of a management frame defined in the legacy standard. Note that in Figs. 4 to 7, each channel is arranged overlapping every 5 MHz. 4 to 7, equation (1) represents the absolute value of the difference between CFFS0 and CFFS1, equation (2) represents the absolute value of the difference between CCFS1 and the EHT Channel Center Frequency Segment (field 307), and equation (3) represents the value of the EHT Channel Width (field 308).

[0033] FIG. 4 is a diagram for explaining an example of operation information notified when a frequency bandwidth of 160+80 MHz is used. As described above, CCFS0, CCFS1, and Channel Width, which are information on the low-frequency side (first half) of 160+80 MHz, are notified by a management frame defined in the legacy standard. In addition to this information on the low-frequency side of 160 MHz, the above-mentioned EHT Channel Center Frequency Segment (field 307) and EHT Channel Width (field 308) are used. At this time, the EHT Channel Center Frequency Segment is a channel value corresponding to the center frequency of 80 MHz on the high-frequency side, and the EHT Channel Width is a value of 0 indicating 240 MHz. Equation (2) in FIG. 4 indicates that, of the total 240 MHz, the 160 MHz on the low-frequency side (first half) and the 80 MHz on the high-frequency side (second half) are not adjacent to each other. Furthermore, it is possible to notify which frequency channel is used for 160 MHz+80 MHz from the values ​​of CCFS0, CCFS1, and EHT Channel Center Frequency Segment.

[0034] FIG. 5 is a diagram for explaining the operation information notified when a frequency bandwidth of 240 MHz is used. As described above, CCFS0, CCFS1, and Channel Width, which are information on the low-frequency side (first half) of 160+80 MHz, are notified by a management frame defined in the legacy standard. In addition to this information on the low-frequency side of 160 MHz, the above-mentioned EHT Channel Center Frequency Segment (field 307) and EHT Channel Width (field 308) are used. At this time, the EHT Channel Center Frequency Segment is a channel value corresponding to the center frequency of 160 MHz on the high-frequency side, and the EHT Channel Width is a value of 0 indicating 240 MHz. Equation (2) in FIG. 5 indicates that, of the entire 240 MHz, the 160 MHz on the low-frequency side (first half) and the 80 MHz on the high-frequency side (second half) are adjacent to each other. Furthermore, it is possible to notify which frequency channel is used in the frequency bandwidth of 240 MHz from the values ​​of CCFS0, CCFS1, and EHT Channel Center Frequency Segment.

[0035] FIG. 6 is a diagram for explaining the operation information notified when using a frequency bandwidth of 80+160 MHz. As described above, CCFS0, CCFS1, and Channel Width, which are information on the low-frequency side (first half) of 160+80 MHz, are notified by a management frame defined in the legacy standard. In addition to this information on the low-frequency side of 160 MHz, the above-mentioned EHT Channel Center Frequency Segment (field 307) and EHT Channel Width (field 308) are used. At this time, the EHT Channel Center Frequency Segment is a channel value corresponding to the center frequency of 160 MHz on the high-frequency side, and the EHT Channel Width is a value of 0 indicating 240 MHz. Equations (1) and (2) in FIG. 6 show that, of the total 240 MHz, the 80 MHz on the low-frequency side (first half) and the 160 MHz on the high-frequency side (second half) are not adjacent to each other. Furthermore, the values ​​of CCFS0, CCFS1, and EHT Channel Center Frequency Segment can be used to notify which frequency channel is being used in the 80+160 MHz frequency bandwidth.

[0036] FIG. 7 is a diagram for explaining the operation information notified when using a frequency bandwidth of 80+80+80 MHz. As described above, CCFS0, CCFS1, and Channel Width, which are information on the low-frequency side (first half) of 160+80 MHz, are notified by a management frame specified in the legacy standard. In addition to this information on the low-frequency side of 160 MHz, the above-mentioned EHT Channel Center Frequency Segment (field 307) and EHT Channel Width (field 308) are used. At this time, the EHT Channel Center Frequency Segment is a channel value corresponding to the center frequency of 80 MHz on the high-frequency side, and the EHT Channel Width is a value of 0 indicating 240 MHz. Equations (1) and (2) in FIG. 7 show that none of the 80 MHz are adjacent to each other among the entire 240 MHz. Furthermore, it is possible to notify which frequency channel is used in the frequency bandwidth of 80+80+80 MHz by the values ​​of CCFS0, CCFS1, and EHT Channel Center Frequency Segment.

[0037] [Variations] Table 4 shows modified examples of the components of the EHT Operation Element 301 in the above embodiment. When the frequency bandwidth to be used is specified using the EHT Operation Element 301, the content of the Control field 306 can be expanded as shown in Table 4, so that the frequency bandwidth can be easily specified. For example, when the EHT Channel Width field 308 (information on the frequency bandwidth for wireless communication) is 0, it indicates that the frequency bandwidth to be used is 160 MHz or less, when the EHT Channel Width field 308 is 1, it indicates that the frequency bandwidth to be used is 240 MHz, and when the EHT Channel Width field 308 is 2, it may indicate that the frequency bandwidth to be used is 320 MHz. The names of the fields / subfields and the positions and sizes of the bits are not limited to those shown in the table, and similar information may be stored with different field names / subfield names or in different orders and sizes. When the EHT Channel Width field 308 is defined as shown in Table 4, it is possible to notify the frequency bandwidth and the frequency channel by changing the EHT Channel Width field 308=1 in FIG. 4 to FIG. 7. [Table 4]

[0038] According to the embodiment described above, when wireless communication is performed with a partner device in a frequency bandwidth of 240 MHz or more, it is possible to appropriately notify the operation information used in wireless communication. Note that in the embodiment, the notification procedure of the operation information is mainly described, but it is also possible to configure the communication device to receive the operation information. In that case, the communication unit 206 shown in FIG. 2 becomes a means for receiving the above-described operation information from another communication device.

[0039] [Other embodiments] The present invention can also be realized by a process in which a program for implementing one or more of the functions of the above-described embodiments is supplied to a system or device via a network or a storage medium, and one or more processors in a computer of the system or device read and execute the program. The present invention can also be realized by a circuit (e.g., ASIC) that implements one or more of the functions.

[0040] The invention is not limited to the above-described embodiments, and various modifications and variations are possible without departing from the spirit and scope of the invention. Accordingly, the following claims are appended to apprise the public of the scope of the invention.

Claims

1. 1. A communication device, comprising: A communication means for communicating a management frame including a channel width and a CCFS (Channel Center Frequency Segment) 0 and a CCFS 1 with another communication device, The Channel Width field indicating the Channel Width is included in an EHT Operation Information field conforming to the IEEE (Institute of Electrical and Electronics Engineers) 802.11 series standard, the Channel Width is selected from a plurality of values ​​including at least a first value and a second value, the first value indicating a 160 MHz bandwidth and the second value indicating a 320 MHz bandwidth; The Channel Width indicates an entire frequency bandwidth used for wireless communication, and the entire frequency bandwidth is composed of a primary frequency bandwidth and a secondary frequency bandwidth, A communication device characterized in that CCFS0 indicates information regarding a center frequency of a band corresponding to the primary frequency bandwidth, and CCFS1 indicates information regarding a center frequency in a band corresponding to the entire frequency bandwidth.

2. 2. The communication device according to claim 1, wherein the management frame is a management frame conforming to the IEEE 802.11 series standards.

3. 3. The communication device according to claim 1, wherein the management frame is any one of a Beacon frame, a Probe Response frame, and an Association Response frame.

4. 4. The communication device according to claim 1, wherein the management frame includes an EHT Operation Element.

5. The communication device according to claim 4 , wherein the EHT Operation Element includes an Element ID field, an Element ID Extension field, and the EHT Operation Information field.

6. 6. The communication device according to claim 1, wherein the CCFS0 and the CCFS1 comply with the IEEE 802.11 series of standards.

7. 7. The communication device according to claim 1, further comprising a printing unit for executing printing.

8. 8. The communication device according to claim 1, wherein the communication unit transmits the management frame including the Channel Width, the CCFS0, and the CCFS1 to another communication device.

9. 8. The communication device according to claim 1, wherein the communication unit receives the management frame including the Channel Width, the CCFS0, and the CCFS1 from another communication device.

10. The communication device further includes a setting unit for setting a frequency bandwidth used by the communication device as an operation setting of the communication device based on an operation by a user of the communication device, 10. The communication device according to claim 1, wherein the CCFS0, the CCFS1 and the Channel Width of the management frame are set to values ​​corresponding to the frequency bandwidth used by the communication device set by the setting means.

11. The communication device according to claim 10, further comprising a touch panel that accepts operations by a user, and the setting means sets the frequency bandwidth used by the communication device as an operational setting of the communication device based on the operation via the touch panel.

12. A method for controlling a communication device, comprising: A communication process for communicating a management frame including a channel width and a CCFS (Channel Center Frequency Segment) 0 and a CCFS 1 with another communication device; The Channel Width field indicating the Channel Width is included in an EHT Operation Information field conforming to the IEEE (Institute of Electrical and Electronics Engineers) 802.11 series standard, the Channel Width is selected from a plurality of values ​​including at least a first value and a second value, the first value indicating a 160 MHz bandwidth and the second value indicating a 320 MHz bandwidth; The Channel Width indicates an entire frequency bandwidth used for wireless communication, and the entire frequency bandwidth is composed of a primary frequency bandwidth and a secondary frequency bandwidth, A control method characterized in that CCFS0 indicates information regarding a center frequency of a band corresponding to the primary frequency bandwidth, and CCFS1 indicates information regarding a center frequency in a band corresponding to the entire frequency bandwidth.

13. A program for causing a computer to function as the communication device according to any one of claims 1 to 11.

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