Communication method and station

Abstract

The invention relates to the field of communication, in particular to a communication method and a station. The communication method comprises the following steps: a station obtains first information, wherein the first information is used for indicating bandwidth related information of a first channel; according to the embodiment of the invention, the communication bandwidth can be expanded, and the throughput of communication equipment is improved.

Description

Communication methods and sites Technical Field

[0001] The present application relates to the field of communications, and more particularly, to a communication method and a station. Background Art

[0002] With the development of AR (Augmented Reality), VR (Virtual Reality), MR (Mixed Reality), and the Internet of Things, a large number of wireless communication devices, such as Wi-Fi (Wireless Fidelity), are expected to be connected. The maximum channel bandwidth currently supported by communication systems may not be able to meet the high throughput requirements of these devices.

[0003] Summary of the Invention

[0004] An embodiment of the present application provides a communication method, including:

[0005] The station obtains first information, where the first information is used to indicate bandwidth-related information of a first channel.

[0006] This embodiment of the present application provides a site, including:

[0007] The processing unit is configured to obtain first information, where the first information is used to indicate bandwidth-related information of the first channel.

[0008] An embodiment of the present application provides a communication device, comprising a processor and a memory, wherein the memory is used to store a computer program, and the processor is used to call and execute the computer program stored in the memory, so that the communication device executes the above-mentioned communication method.

[0009] An embodiment of the present application provides a chip for implementing the above-mentioned communication method.

[0010] Specifically, the chip includes: a processor, which is used to call and run a computer program from a memory, so that a device equipped with the chip executes the above-mentioned communication method.

[0011] An embodiment of the present application provides a computer-readable storage medium for storing a computer program, which, when executed by a device, enables the device to execute the above-mentioned communication method.

[0012] An embodiment of the present application provides a computer program product, including computer program instructions, which enable a computer to execute the above-mentioned communication method.

[0013] An embodiment of the present application provides a computer program, which, when executed on a computer, enables the computer to execute the above-mentioned communication method.

[0014] The embodiments of the present application can expand the communication bandwidth and thereby improve the throughput of the communication equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] FIG1 is a schematic diagram of an application scenario according to an embodiment of the present application.

[0016] FIG2 is a schematic diagram of a primary channel and a secondary channel in a 320 MHz BSS according to an embodiment of the present application.

[0017] FIG3 is a schematic flowchart of a communication method according to an embodiment of the present application.

[0018] FIG4 is a schematic block diagram of a site according to an embodiment of the present application.

[0019] FIG5 is a schematic diagram of constructing a 240 MHz channel in a 5 GHz frequency band according to an embodiment of the present application.

[0020] FIG6 is a schematic diagram of a primary channel and a secondary channel of a 240 MHz BSS according to an embodiment of the present application.

[0021] FIG7 is a schematic diagram of primary channels and secondary channels of another 240 MHz BSS according to an embodiment of the present application.

[0022] FIG8 is a schematic diagram of constructing a 480 MHz channel in the 6 GHz frequency band according to an embodiment of the present application.

[0023] FIG9 is a schematic diagram of a primary channel and a secondary channel of a 480 MHz BSS according to an embodiment of the present application.

[0024] FIG10 is a schematic diagram of constructing a 640 MHz channel in the 6 GHz frequency band according to an embodiment of the present application.

[0025] FIG11 is a schematic diagram of a primary channel and a secondary channel of a 640 MHz BSS according to an embodiment of the present application.

[0026] FIG12 is a schematic diagram of a UHR capability element format according to an embodiment of the present application.

[0027] FIG13 is a schematic diagram of a UHR operation element format according to an embodiment of the present application.

[0028] FIG14 is a schematic diagram of a format of a UHR operation element subfield according to an embodiment of the present application.

[0029] FIG15 is a schematic diagram of another format of a UHR operation element subfield according to an embodiment of the present application.

[0030] FIG16 is a schematic structural diagram of a communication device according to an embodiment of the present application.

[0031] FIG17 is a schematic block diagram of a chip according to an embodiment of the present application.

[0032] FIG18 is a schematic block diagram of a communication system according to an embodiment of the present application. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application.

[0034] The technical solutions of the embodiments of the present application can be applied to various communication systems, such as wireless local area network (WLAN), wireless fidelity (WiFi) or other communication systems.

[0035] For example, a communication system 100 used in an embodiment of the present application is shown in FIG1 . The communication system 100 may include an access point (AP) 110 and a station (STA) 120 that accesses a network through the access point 110 .

[0036] In some scenarios, an AP is also called an AP STA. In a sense, an AP is also a STA.

[0037] In some scenarios, a STA is also called a non-AP STA.

[0038] The communication in the communication system 100 can be communication between an AP and a non-AP STA, communication between a non-AP STA and a non-AP STA, or communication between a STA and a peer STA, where a peer STA may refer to a device that communicates with the STA peer, for example, the peer STA may be an AP or a non-AP STA.

[0039] An AP acts as a bridge between wired and wireless networks, connecting wireless network clients and then connecting the wireless network to the Ethernet. An AP can be a terminal device (such as a mobile phone) or a network device (such as a router). This terminal device or network device contains a chip that enables communication, such as a WLAN or WiFi chip.

[0040] It should be understood that the role of STA in the communication system is not absolute. For example, in some scenarios, when a mobile phone is connected to a router, the mobile phone is a non-AP STA. When the mobile phone serves as a hotspot for other mobile phones, the mobile phone plays the role of AP.

[0041] APs and non-AP STAs can be devices used in the Internet of Vehicles, IoT nodes and sensors in the Internet of Things (IoT), smart cameras, smart remote controls, smart water and electricity meters in smart homes, and sensors in smart cities.

[0042] In some embodiments, a non-AP STA may support 802.11be. A non-AP STA may also support various current and future 802.11 family wireless local area network (WLAN) standards, such as 802.11ax, 802.11ac, 802.11n, 802.11g, 802.11b, and 802.11a.

[0043] In some embodiments, the AP may be a device supporting the 802.11be standard. The AP may also be a device supporting various current and future 802.11 family WLAN standards, such as 802.11ax, 802.11ac, 802.11n, 802.11g, 802.11b, and 802.11a.

[0044] In the embodiment of the present application, the STA may be a mobile phone, tablet computer, computer, virtual reality (VR) device, augmented reality (AR) device, wireless device in industrial control, set-top box, wireless device in self-driving, in-vehicle communication device, wireless device in remote medical, wireless device in smart grid, wireless device in transportation safety, wireless device in smart city or smart home, wireless communication chip / ASIC / SOC / etc. that supports WLAN / WiFi technology.

[0045] The frequency bands supported by WLAN technology may include but are not limited to: low frequency bands (such as 2.4 GHz, 5 GHz, and 6 GHz) and high frequency bands (such as 45 GHz and 60 GHz).

[0046] FIG1 exemplarily shows one AP STA and two non-AP STAs. Optionally, the communication system 100 may include multiple AP STAs and other numbers of non-AP STAs, which is not limited in the embodiments of the present application.

[0047] It should be understood that the terms "system" and "network" are often used interchangeably herein. The term "and / or" is simply a description of an association between related objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, or B exists alone. Furthermore, the character " / " generally indicates that the related objects are in an "or" relationship.

[0048] It should be understood that the "indication" mentioned in the embodiments of this application can be a direct indication, an indirect indication, or an indication of an association. For example, "A indicates B" can mean that A directly indicates B, for example, B can be obtained through A; it can also mean that A indirectly indicates B, for example, A indicates C, and B can be obtained through C; it can also mean that there is an association between A and B.

[0049] In the description of the embodiments of the present application, the term "corresponding" may indicate a direct or indirect correspondence between the two, or an association relationship between the two, or a relationship between indication and being indicated, configuration and being configured, etc.

[0050] To facilitate understanding of the technical solutions of the embodiments of the present application, the relevant technologies of the embodiments of the present application are described below. The following relevant technologies can be arbitrarily combined with the technical solutions of the embodiments of the present application as optional solutions, and they all fall within the protection scope of the embodiments of the present application.

[0051] Primary channel and secondary channel

[0052] Currently, the maximum bandwidth of a Wi-Fi channel is 320 MHz. Primary and secondary channels may include the following examples.

[0053] Primary 20MHz channel: A 20MHz channel used to transmit 20MHz PHY (Physical layer) PPDUs (Physical Layer Protocol Data Units) in a 40MHz, 80MHz, 160MHz, or 320MHz BSS. It is also used to transmit beacons in a 40MHz, 80MHz, 160MHz, or 320MHz BSS.

[0054] Primary 40MHz channel: A 40MHz channel used to transmit a 40MHz PHY PPDU in an 80MHz, 160MHz, or 320MHz BSS, or a 40MHz channel that contains a primary 20MHz channel in an 80MHz, 160MHz, or 320MHz BSS.

[0055] Primary 80MHz channel: An 80MHz channel used to transmit an 80MHz PHY PPDU in a 160MHz or 320MHz BSS, or an 80MHz channel that includes a primary 20MHz channel in a 160MHz or 320MHz BSS.

[0056] Primary 160MHz channel: A 160MHz channel used to transmit 160MHz PHY PPDUs in a 320MHz BSS, or a 160MHz channel that includes a primary 20MHz channel in a 320MHz BSS.

[0057] Secondary 20MHz channel: In a 40MHz BSS, a 20MHz channel adjacent to the primary 20MHz channel and, together with the primary 20MHz channel, forms the 40MHz channel of the 40MHz BSS. In an 80MHz BSS, a 20MHz channel adjacent to the primary 20MHz channel and, together with the primary 20MHz channel, forms the primary 40MHz channel of the 80MHz BSS. In a 160MHz BSS, a 20MHz channel adjacent to the primary 20MHz channel and, together with the primary 20MHz channel, forms the primary 40MHz channel of the 160MHz BSS. In a 320MHz BSS, a 20MHz channel adjacent to the primary 20MHz channel and, together with the primary 20MHz channel, forms the primary 40MHz channel of the 320MHz BSS.

[0058] Secondary 40MHz channel: In an 80MHz BSS, a 40MHz channel adjacent to the primary 40MHz channel and, together with the primary 40MHz channel, forms the 80MHz channel of the 80MHz BSS. In a 160MHz BSS, a 40MHz channel adjacent to the primary 40MHz channel and, together with the primary 40MHz channel, forms the primary 80MHz channel of the 160MHz BSS. In a 320MHz BSS, a 40MHz channel adjacent to the primary 40MHz channel and, together with the primary 40MHz channel, forms the primary 80MHz channel of the 320MHz BSS.

[0059] Secondary 80MHz channel: In a 160MHz BSS, an 80MHz channel adjacent to the primary 80MHz channel and, together with the primary 80MHz channel, forms the 160MHz channel of the 160MHz BSS. In a 320MHz BSS, an 80MHz channel adjacent to the primary 80MHz channel and, together with the primary 80MHz channel, forms the 160MHz channel of the 320MHz BSS.

[0060] Secondary 160MHz channel: In a 320MHz BSS, a 160MHz channel adjacent to the primary 160MHz channel that, together with the primary 160MHz channel, constitutes a 320MHz channel in the 320MHz BSS. Figure 2 shows a diagram of primary and secondary channels in a 320MHz BSS.

[0061] FIG3 is a schematic flow chart of a communication method 300 according to an embodiment of the present application. The method can optionally be applied to the system shown in FIG1 , but is not limited thereto. The method includes at least part of the following contents.

[0062] S310: A station obtains first information, where the first information is used to indicate bandwidth-related information of a first channel.

[0063] In the embodiments of the present application, a station may be an AP STA or a non-AP STA. The station may obtain the first information by dividing the transmission resources of the communication system to obtain bandwidth information of the first channel. The station may also obtain the first information by receiving the first information from other devices, such as other stations. For example, a non-AP STA may receive the first information from an AP STA. For another example, an AP STA may receive the first information from a non-AP STA. The station may also send the first information to other devices, such as other stations. For example, a non-AP STA may send the first information to an AP STA. For another example, an AP STA may send the first information to a non-AP STA. In the embodiments of the present application, the specific device for dividing the transmission resources is not limited and can be flexibly selected based on the actual application scenario.

[0064] In one embodiment, the bandwidth-related information of the first channel includes relevant information that the bandwidth of the first channel is greater than the set bandwidth. In an embodiment of the present application, the set bandwidth may be the maximum channel bandwidth or the larger channel bandwidth of the communication system. For example, the maximum bandwidth of the 5 GHz band is 160 MHz. The maximum bandwidth of the 6 GHz band is 320 MHz. The first channel may be a newly added channel, and the bandwidth of the first channel may be a newly added bandwidth. For example, in UHR (Ultra-High Reliability) Wi-Fi communication, the bandwidth of the first channel may be 240 MHz, 480 MHz, or 640 MHz in the 5 GHz band, and may be a newly added channel bandwidth such as 240 MHz, 480 MHz, or 640 MHz in the 6 GHz band. The specific numerical value of the newly added channel bandwidth in the above example may also be other values. In addition, the first information used to indicate the bandwidth-related information of the first channel may also be compatible with relevant information indicating other bandwidths, such as one or more relevant information such as 40 MHz, 80 MHz, 160 MHz, or 320 MHz.

[0065] In one embodiment, the bandwidth-related information of the first channel includes at least one of the following: a starting frequency, a bandwidth of a subchannel, and a channel center frequency index of the subchannel. In an embodiment of the present application, the starting frequency may also be referred to as a starting frequency. For example, the starting frequency may be indicated by an operating class field in a MAC (Medium Access Control) frame. For example, the operating class field may indicate the starting frequency of a frequency band, such as indicating the starting frequency of a 2.4 GHz band, a 5 GHz band, or a 6 GHz band. The first channel may include multiple subchannels. For example, the subchannels of the first channel may include a main channel and a secondary channel. The channel center frequency index of the subchannel may be determined based on a physical layer (PHY) parameter. For example, the physical layer parameter dot11UHRCurrentChannelCenterFrequencyIndex0 (current channel center frequency index 0) may come from the CENTER_FREQUENCY_SEGMENT_0 (center frequency segment) parameter in the PHYCONFIG_VECTOR interface (physical layer configuration vector) between the PHY and MAC.

[0066] In one embodiment, a first channel includes N adjacent second channels, where N is an integer greater than 1; the bandwidth of the first channel is equal to the sum of the bandwidths of the N second channels. In this embodiment of the present application, the second channel may be a channel with other bandwidths in the communication system. For example, the second channel may be a channel with a bandwidth of 80 MHz, 160 MHz, 320 MHz, etc. In this embodiment of the present application, the second channel may be understood as a subchannel of the first channel.

[0067] In one embodiment, the subchannels of the first channel include a first subchannel and at least one second subchannel, where the first subchannel is a primary channel and the second subchannel is a secondary channel. In this embodiment of the present application, the first channel can be divided into multiple subchannels, and the primary channel and secondary channels can be determined from the multiple subchannels. The primary channel can include a primary 20 MHz channel, and the secondary channel can be adjacent to the primary channel.

[0068] In one embodiment, the first channel is a 240 MHz channel, which is a channel with a bandwidth of 240 MHz in the 5 GHz frequency band. The first channel includes three adjacent second channels, which are channels with a bandwidth of 80 MHz in the 5 GHz frequency band or channels with a bandwidth of 80 MHz in the 6 GHz frequency band.

[0069] In one embodiment, the first channel is a 240 MHz channel, the first sub-channel is a primary 80 MHz channel, the two second sub-channels of the first channel are a first secondary 80 MHz channel and a second secondary 80 MHz channel, respectively, and the primary 80 MHz channel includes a primary 20 MHz channel. The primary 80 MHz channel may represent a primary channel with an 80 MHz bandwidth. The primary 20 MHz channel may represent a primary channel with a 20 MHz bandwidth. The first secondary 80 MHz channel may represent a first secondary channel with an 80 MHz bandwidth. The second secondary 80 MHz channel may represent a second secondary channel with an 80 MHz bandwidth.

[0070] In one embodiment, the first channel is a 240 MHz channel, the first sub-channel is a primary 160 MHz channel, and the second sub-channel is a secondary 80 MHz channel, where the primary 160 MHz channel includes a primary 20 MHz channel. The primary 160 MHz channel may be a primary channel with a bandwidth of 160 MHz, and the secondary 80 MHz channel may be a secondary channel with a bandwidth of 80 MHz.

[0071] In one embodiment, the channel center frequency index of the primary 20 MHz channel is 100, 104, 108, 112, 116, 120, or 128.

[0072] For example, for a 240 MHz BSS, the following primary and secondary channel combinations may be provided:

[0073] Option 1, Primary 80 MHz, Secondary 80 MHz, and Secondary 80 MHz: In a 240 MHz BSS, the primary 80 MHz channel includes the primary 20 MHz channel, while the Secondary 1 80 MHz and Secondary 2 80 MHz channels do not include the primary 20 MHz channel. The primary 80 MHz, Secondary 1 80 MHz, and Secondary 2 80 MHz channels can form a 240 MHz channel in a 240 MHz BSS. The primary 20 MHz channel can be any 20 MHz subchannel within the 240 MHz channel.

[0074] Option, Primary 160 MHz and Secondary 80 MHz: In a 240 MHz BSS, the primary 160 MHz channel includes the primary 20 MHz channel, while the secondary 1 80 MHz channel does not. Together, the primary 160 MHz and secondary 1 80 MHz channels constitute the 240 MHz channel in the 240 MHz BSS. The primary 20 MHz channel can be one of the 20 MHz sub-channels within a 160 MHz channel in the 5 GHz band according to the IEEE standard. The center frequency index of the primary 20 MHz channel can be one of 100, 104, 108, 112, 116, 120, or 128.

[0075] In one embodiment, the first channel is a 480 MHz channel, which is a channel with a bandwidth of 480 MHz in the 6 GHz frequency band. The first channel includes three adjacent second channels, which are channels with a bandwidth of 160 MHz in the 6 GHz frequency band.

[0076] In one embodiment, the first channel is a 480 MHz channel, the first sub-channel is a primary 320 MHz channel, the two second sub-channels of the first channel are a first secondary 80 MHz channel and a second secondary 80 MHz channel, and the primary 320 MHz channel includes a primary 20 MHz channel.

[0077] In one embodiment, the first channel is a first type 480 MHz channel, and the channel center frequency index of the first type 480 MHz channel is 47 or 143; or, the first channel is a second type 480 MHz channel, and the channel center frequency index of the second type 480 MHz channel is 79 or 175.

[0078] For example, a 480 MHz channel can be constructed in the 6 GHz band (or spectrum). This 480 MHz channel is composed of any three adjacent 160 MHz channels in the 6 GHz band. The following are two examples of 480 MHz channels: 480 MHz-1 and 480 MHz-2. The channel center frequency indices for 480 MHz-1 are 47, 143, and the channel center frequency indices for 480 MHz-2 are 79, 175.

[0079] In addition, examples of primary and secondary channels in a 480 MHz BSS are as follows: In a 480 MHz BSS, the primary 320 MHz channel includes the primary 20 MHz channel, while the secondary 1 80 MHz channel and the secondary 2 80 MHz channel do not include the primary 20 MHz channel. The primary 320 MHz, secondary 1 80 MHz, and secondary 2 80 MHz channels comprise the 480 MHz channel in the 480 MHz BSS. The primary 20 MHz channel can be any 20 MHz subchannel within the 480 MHz channel.

[0080] In one embodiment, the first channel is a 640 MHz channel, which is a channel with a bandwidth of 640 MHz in the 6 GHz frequency band. The first channel includes four adjacent second channels, which are channels with a bandwidth of 160 MHz in the 6 GHz frequency band.

[0081] In one implementation, the first channel is a 640 MHz channel, the first sub-channel is a primary 320 MHz channel, the second sub-channel is a secondary 320 MHz channel, and the primary 320 MHz channel includes a primary 20 MHz channel.

[0082] In one embodiment, the first channel is a first type 640 MHz channel, and the channel center frequency index of the first type 640 MHz channel is 63; or, the first channel is a second type 640 MHz channel, and the channel center frequency index of the second type 640 MHz channel is 159.

[0083] For example, a 640 MHz channel can be constructed in the 6 GHz band. This 640 MHz channel is composed of any four adjacent 160 MHz channels in the 6 GHz band. The following example defines two types of 640 MHz channels: 640 MHz-1 and 640 MHz-2. The channel center frequency index of 640 MHz-1 is 63, and the channel center frequency index of 640 MHz-2 is 159.

[0084] In addition, examples of primary and secondary channels of a 640MHz BSS are as follows: in a 640MHz BSS, the primary 320MHz channel includes the primary 20MHz channel, the secondary 320MHz does not include the primary 20MHz channel, and the primary 320MHz and secondary 320MHz constitute the 640MHz channel in the 640MHz BSS. The primary 20MHz channel can be any 20MHz sub-channel in the 640MHz channel.

[0085] In one embodiment, the bandwidth-related information of the first channel includes an operation class corresponding to the first channel, where the operation class corresponding to the first channel is used to indicate at least one of the bandwidth, start frequency, and channel center frequency index of the first channel.

[0086] In one embodiment, the operation class corresponding to the first channel includes at least one of the following:

[0087] The first operation class indicates that the first channel is a channel with a bandwidth of 240 MHz in the 5 GHz frequency band, the start frequency of the first channel is 5 GHz, and the channel center frequency index of the first channel is 122;

[0088] The second operation class indicates that the first channel is a channel with a bandwidth of 480 MHz in the 6 GHz frequency band, the start frequency of the first channel is 5.950 GHz, and the channel center frequency index of the first channel is 47, 79, 143, or 175;

[0089] The third operation class indicates that the first channel is a channel with a bandwidth of 640 MHz in the 6 GHz frequency band, the starting frequency of the first channel is 5.950 GHz, and the channel center frequency index of the first channel is 63 or 159.

[0090] For example, a new operating class can be determined based on the newly added 240MHz, 480MHz, and 640MHz bandwidths:

[0091] Operation class a (ie, the first operation class) represents a channel with a bandwidth of 240 MHz in the 5 GHz frequency band, a channel start frequency of 5 GHz, and a channel center frequency index of 122. For example, a=138.

[0092] Operation class b (i.e., the second operation class) represents a channel with a bandwidth of 480 MHz in the 6 GHz band, a channel start frequency of 5.950 GHz, and channel center frequency indices of 47, 79, 143, and 175. For example, b=138 or 139.

[0093] Operation class c (i.e., the third operation class) represents a channel with a bandwidth of 640 MHz in the 6 GHz band, a channel start frequency of 5.950 GHz, and a channel center frequency index of 63, 159. For example, c=138, 139, or 140.

[0094] The specific values ​​of a, b, and c above can be flexibly set according to actual needs.

[0095] In an embodiment of the present application, a station may receive and / or send an operation class corresponding to a first channel. For example, an AP station may send first information carrying an operation class corresponding to a first channel to a non-AP station. In another example, an AP station may receive first information carrying an operation class corresponding to a first channel from a non-AP station.

[0096] In one implementation, the operation class corresponding to the first channel is in the operation class field of the first MAC frame and / or the first MAC element.

[0097] For example, a Reduced Neighbor Report element or a Neighbor Report element may include an Operating Class field. The Operating Class field may be used to specify the operating class of a corresponding channel, such as the first channel.

[0098] In one embodiment, the operation type field is further used to indicate at least one of the following parameters:

[0099] Channel starting frequency;

[0100] Channel spacing;

[0101] Channel center frequency index.

[0102] In one embodiment, the channel spacing may represent the channel bandwidth.

[0103] In one embodiment, the bandwidth-related information of the first channel includes the bandwidth support capability of the station.

[0104] In embodiments of the present application, a station can receive and / or transmit its bandwidth support capabilities. For example, an AP station can transmit first information containing its bandwidth support capabilities to a non-AP station. Another example is an AP station receiving first information containing its bandwidth support capabilities from a non-AP station. The station's reception and / or transmission of its bandwidth support capabilities and the operation corresponding to the station's reception and / or transmission of the first channel can be performed at different times, and the specific operation can be flexibly selected based on actual application requirements.

[0105] In one embodiment, the bandwidth support capability of the station includes whether the station supports a physical layer protocol data unit PPDU associated with the bandwidth of the first channel when operating in the first frequency band.

[0106] In one embodiment, the bandwidth support capability of a site includes at least one of the following:

[0107] Whether non-OFDMA (Orthogonal Frequency Division Multiple Access) 240MHz PPDU is supported when operating in the 5GHz band;

[0108] Whether non-OFDMA 480MHz PPDU is supported when operating in the 6GHz band;

[0109] Whether non-OFDMA 640MHz PPDU is supported when operating in the 6GHz band.

[0110] In this embodiment of the present application, non-OFDMA 240MHz PPDU may represent a non-OFDMA PPDU with a bandwidth of 240MHz; non-OFDMA 480MHz PPDU may represent a non-OFDMA PPDU with a bandwidth of 480MHz; and non-OFDMA 640MHz PPDU may represent a non-OFDMA PPDU with a bandwidth of 640MHz.

[0111] In one embodiment, the bandwidth support capability of the station is in the UHR PHY Capabilities Information field of the ultra-high reliability (UHR) Capabilities element.

[0112] In one embodiment, the UHR capability element is a second MAC element and / or the UHR capability element is in the second MAC frame. For example, the first station may inform the second station of the first station's own PHY capability via UHR PHY capability information carried in the MAC frame.

[0113] For example, the UHR PHY capability information field contains the following subfields:

[0114] The "Support For 240MHz In 5GHz" subfield is used to indicate support for non-OFDMA 240MHz PPDU when operating in the 5GHz band.

[0115] The "Support For 480MHz In 6GHz" subfield is used to indicate support for non-OFDMA 480MHz PPDU when operating in the 6GHz band.

[0116] The "Support For 640MHz In 6GHz" subfield is used to indicate support for non-OFDMA 640MHz PPDU when operating in the 6GHz band.

[0117] In one implementation, the bandwidth-related information of the first channel includes configuration information of the first channel of the BSS of the station.

[0118] In an embodiment of the present application, a station may receive and / or transmit configuration information for a first channel of a BSS of the station. For example, an AP station transmits first information carrying configuration information for a first channel of the BSS of the station to a non-AP station. For another example, an AP station receives first information carrying configuration information for a first channel of the BSS of the station from a non-AP station. The station's reception and / or transmission of the bandwidth support capability of the station, the operation class corresponding to the station's reception and / or transmission of the first channel, and the station's reception and / or transmission of configuration information for the first channel of the BSS of the station may be performed at different times and may be flexibly selected based on actual application requirements.

[0119] In one embodiment, the configuration information of the first channel includes:

[0120] A field for indicating bandwidth;

[0121] A field used to indicate the channel center frequency index.

[0122] In one embodiment, the configuration information of the first channel is in a UHR operation information field in a UHR operation element.

[0123] For example, the UHR Operation Information field in the MAC element UHR Operation element contains a Control field and a CCFS (Channel Center Frequency Segment) field. The Control field can be used to indicate the bandwidth, and the CCFS field can be used to indicate the channel center frequency index of the BSS bandwidth.

[0124] In one embodiment, the field used to indicate the channel center frequency index is a CCFS field, and the CCFS field includes a first CCFS subfield and a second CCFS subfield;

[0125] The first CCFS subfield is used to indicate the channel center frequency index of the primary channel in the first channel, and the second CCFS subfield is used to indicate the channel center frequency index of the first channel.

[0126] In one implementation, the field used to indicate the channel center frequency index is a CCFS field, the CCFS field includes a third CCFS subfield, and the third CCFS subfield is used to indicate the channel center frequency index of the first channel of the BSS.

[0127] The following are examples of two formats of the CCFS field:

[0128] 1. Format 1 (CCFS field includes CCFS0 and CCFS1):

[0129] When the BSS bandwidth is 240 MHz, CCFS0 indicates the channel center frequency index of the primary 80 MHz of the BSS bandwidth (see Option 1 for the 240 MHz channel above). CCFS1 indicates the channel center frequency index of the 240 MHz BSS bandwidth. CCFS1>0 and |CCFS1-CCFS0|=16.

[0130] When the BSS bandwidth is 240 MHz, CCFS0 indicates the channel center frequency index of the primary 160 MHz BSS bandwidth (see Option 2 for the 240 MHz channel above). CCFS1 indicates the channel center frequency index of the 240 MHz BSS bandwidth. CCFS1>0 and |CCFS1-CCFS0|=8.

[0131] When the BSS bandwidth is 480 MHz, CCFS0 indicates the channel center frequency index of the primary 320 MHz BSS bandwidth. CCFS1 indicates the channel center frequency index of the 480 MHz BSS bandwidth. CCFS1 > 0 and |CCFS1 – CCFS0| = 16.

[0132] When the BSS bandwidth is 640 MHz, CCFS0 indicates the channel center frequency index of the primary 320 MHz BSS bandwidth. CCFS1 indicates the channel center frequency index of the 640 MHz BSS bandwidth. CCFS1 > 0 and |CCFS1 - CCFS0| = 32.

[0133] 2. Format 2 (CCFS field includes CCFS0):

[0134] When the BSS bandwidth is 240 MHz, CCFS0 indicates the channel center frequency index of the BSS bandwidth.

[0135] When the BSS bandwidth is 480 MHz, CCFS0 indicates the channel center frequency index of the BSS bandwidth.

[0136] When the BSS bandwidth is 640 MHz, CCFS0 indicates the channel center frequency index of the BSS bandwidth.

[0137] In one embodiment, the UHR operation element is at least one of the following:

[0138] Beacon frame, Probe Response frame, Association Response frame, and Reassociation Response frame.

[0139] In an embodiment of the present application, a station may receive and / or send at least one of a beacon frame, a probe response frame, an association response frame, and a reassociation response frame. Furthermore, at least one of the beacon frame, the probe response frame, the association response frame, and the reassociation response frame may carry configuration information of a first channel of the station's BSS.

[0140] In one embodiment, the channel center frequency index of the primary 20 MHz channel is determined based on the channel center frequency index of the first channel, the number of 20 MHz channels included in the first channel, and the position of the primary 20 MHz channel, where the position of the primary 20 MHz channel corresponds to the channel center frequency index and bandwidth of the first channel.

[0141] In one embodiment, the channel center frequency index of the first subchannel in the first channel is determined based on the starting frequency of the first channel, the channel center frequency index of the first channel, the number of 20 MHz channels included in the first channel, and the position of the main 20 MHz channel, where the position of the main 20 MHz channel corresponds to the channel center frequency index and bandwidth of the first channel.

[0142] In one embodiment, the channel center frequency index of the second subchannel in the first channel is determined based on the start frequency of the first channel and the channel center frequency index of the first subchannel.

[0143] For example, if the 240MHz channel is divided into three 80MHz channels, and includes one 80MHz channel as the main 80MHz channel (i.e., the first sub-channel) and two auxiliary 80MHz channels (i.e., the second sub-channel). The center frequency of the main 80MHz channel can be determined based on the starting frequency of the 240MHz channel, the channel center frequency index of the 240MHz channel, the number of 20MHz channels included in the 240MHz channel, and the position of the main 20MHz channel corresponding to the channel center frequency index and bandwidth of the 240MHz channel. The bandwidth of the first auxiliary 80MHz channel (or recorded as auxiliary 1 80MHz channel) can be determined based on the starting frequency of the 240MHz channel and the channel center frequency index of the main 80MHz channel. The bandwidth of the second auxiliary 80MHz channel (or recorded as auxiliary 2 80MHz channel) can also be determined based on the starting frequency of the 240MHz channel and the channel center frequency index of the main 80MHz channel.

[0144] For another example, if a 240 MHz channel is divided into one primary 160 MHz channel (i.e., the first sub-channel) and one secondary 80 MHz channel (i.e., the second sub-channel), the center frequency of the primary 160 MHz channel can be determined based on the starting frequency of the 240 MHz channel, the channel center frequency index of the 240 MHz channel, the number of 20 MHz channels included in the 240 MHz channel, and the position of the primary 20 MHz channel corresponding to the channel center frequency index and bandwidth of the 240 MHz channel. The bandwidth of the secondary 80 MHz channel can be determined based on the starting frequency of the 240 MHz channel and the channel center frequency index of the primary 160 MHz channel.

[0145] For another example, if a 480 MHz channel is divided into one primary 320 MHz channel (i.e., the first sub-channel) and two secondary 80 MHz channels (i.e., the second sub-channels), the center frequency of the primary 320 MHz channel can be determined based on the starting frequency of the 480 MHz channel, the channel center frequency index of the 480 MHz channel, the number of 20 MHz channels included in the 480 MHz channel, and the position of the primary 20 MHz channel corresponding to the channel center frequency index and bandwidth of the 480 MHz channel. The bandwidth of the secondary 80 MHz channel can be determined based on the starting frequency of the 480 MHz channel and the channel center frequency index of the primary 320 MHz channel.

[0146] For another example, if a 640 MHz channel is divided into one primary 320 MHz channel (i.e., the first sub-channel) and one secondary 320 MHz channel (i.e., the second sub-channel), the center frequency of the primary 320 MHz channel can be determined based on the starting frequency of the 640 MHz channel, the channel center frequency index of the 640 MHz channel, the number of 20 MHz channels included in the 640 MHz channel, and the position of the primary 20 MHz channel corresponding to the channel center frequency index and bandwidth of the 640 MHz channel. The bandwidth of the secondary 320 MHz channel can be determined based on the starting frequency of the 640 MHz channel and the channel center frequency index of the primary 320 MHz channel.

[0147] The 240 MHz, 480 MHz, and 640 MHz channel bandwidths proposed in the embodiments of the present application for next-generation Wi-Fi communications can improve the throughput of communication devices such as WiFi devices, increase data rates, increase the number of OFDMA transmission users, and greatly improve the utilization of 5 GHz and 6 GHz spectrum resources.

[0148] FIG4 is a schematic block diagram of a site 400 according to an embodiment of the present application. The site 400 may include:

[0149] The processing unit 410 is configured to obtain first information, where the first information is used to indicate bandwidth-related information of a first channel.

[0150] In one embodiment, the information related to the bandwidth of the first channel includes information related to that the bandwidth of the first channel is greater than a set bandwidth.

[0151] In one embodiment, the bandwidth-related information of the first channel includes at least one of the following: a starting frequency, a bandwidth of a sub-channel, and a channel center frequency index of the sub-channel.

[0152] In one embodiment, the bandwidth-related information of the first channel includes an operation class corresponding to the first channel, where the operation class corresponding to the first channel is used to indicate at least one of the bandwidth, start frequency, and channel center frequency index of the first channel.

[0153] In one embodiment, the operation class corresponding to the first channel includes at least one of the following:

[0154] The first operation class indicates that the first channel is a channel with a bandwidth of 240 MHz in the 5 GHz frequency band, the start frequency of the first channel is 5 GHz, and the channel center frequency index of the first channel is 122;

[0155] The second operation class indicates that the first channel is a channel with a bandwidth of 480 MHz in the 6 GHz frequency band, the start frequency of the first channel is 5.950 GHz, and the channel center frequency index of the first channel is 47, 79, 143, or 175;

[0156] The third operation class indicates that the first channel is a channel with a bandwidth of 640 MHz in the 6 GHz frequency band, the starting frequency of the first channel is 5.950 GHz, and the channel center frequency index of the first channel is 63 or 159.

[0157] In one implementation, the operation class corresponding to the first channel is in the operation class field of the first MAC frame and / or the first MAC element.

[0158] In one embodiment, the operation type field is further used to indicate at least one of the following parameters:

[0159] Channel starting frequency;

[0160] Channel spacing;

[0161] Channel center frequency index.

[0162] In one embodiment, the bandwidth-related information of the first channel includes the bandwidth support capability of the station.

[0163] In one embodiment, the bandwidth support capability of the station includes whether the station supports a PPDU associated with the bandwidth of the first channel when operating in the first frequency band.

[0164] In one embodiment, the bandwidth support capability of a site includes at least one of the following:

[0165] Whether non-OFDMA 240MHz PPDU is supported when operating in the 5GHz band;

[0166] Whether non-OFDMA 480MHz PPDU is supported when operating in the 6GHz band;

[0167] Whether non-OFDMA 640MHz PPDU is supported when operating in the 6GHz band.

[0168] In one embodiment, the bandwidth support capability of the station is in the UHR PHY Capability Information field of the Ultra High Reliability (UHR) Capability element.

[0169] In one embodiment, the UHR capability element is a second MAC element and / or the UHR capability element is in a second MAC frame.

[0170] In one implementation, the bandwidth-related information of the first channel includes configuration information of the first channel of the basic service set BSS of the station.

[0171] In one embodiment, the configuration information of the first channel includes:

[0172] A field for indicating bandwidth;

[0173] A field used to indicate the channel center frequency index.

[0174] In one embodiment, the field used to indicate the channel center frequency index is a CCFS field, and the CCFS field includes a first CCFS subfield and a second CCFS subfield;

[0175] The first CCFS subfield is used to indicate the channel center frequency index of the primary channel in the first channel, and the second CCFS subfield is used to indicate the channel center frequency index of the first channel.

[0176] In one implementation, the field used to indicate the channel center frequency index is a CCFS field. The CCFS field includes a third CCFS subfield. The third CCFS subfield is used to indicate the channel center frequency index of the first channel of the BSS.

[0177] In one embodiment, the configuration information of the first channel is in a UHR operation information field in a UHR operation element.

[0178] In one embodiment, the UHR operation element is at least one of the following:

[0179] Beacon frame, Probe Response frame, Association Response frame, and Reassociation Response frame.

[0180] In one embodiment, the first channel includes N adjacent second channels, where N is an integer greater than 1; and the bandwidth of the first channel is equal to the sum of the bandwidths of the N second channels.

[0181] In one embodiment, the first channel is a 240 MHz channel, which is a channel with a bandwidth of 240 MHz in the 5 GHz frequency band. The first channel includes three adjacent second channels, which are channels with a bandwidth of 80 MHz in the 5 GHz frequency band.

[0182] In one embodiment, the first channel is a 480 MHz channel, which is a channel with a bandwidth of 480 MHz in the 6 GHz frequency band. The first channel includes three adjacent second channels, which are channels with a bandwidth of 160 MHz in the 6 GHz frequency band.

[0183] In one embodiment, the first channel is a 640 MHz channel, which is a channel with a bandwidth of 640 MHz in the 6 GHz frequency band. The first channel includes four adjacent second channels, which are channels with a bandwidth of 160 MHz in the 6 GHz frequency band.

[0184] In one embodiment, the sub-channels of the first channel include a first sub-channel and at least one second sub-channel, the first sub-channel is a main channel, and the second sub-channel is a secondary channel.

[0185] In one embodiment, the first channel is a 240 MHz channel, the first sub-channel is a primary 80 MHz channel, the two second sub-channels of the first channel are respectively a first auxiliary 80 MHz channel and a second auxiliary 80 MHz channel, and the primary 80 MHz channel includes a primary 20 MHz channel.

[0186] In one embodiment, the first channel is a 240 MHz channel, the first sub-channel is a primary 160 MHz channel, the second sub-channel is a secondary 80 MHz channel, and the primary 160 MHz channel includes a primary 20 MHz channel.

[0187] In one embodiment, the channel center frequency index of the primary 20 MHz channel is 100, 104, 108, 112, 116, 120, or 128.

[0188] In one embodiment, the first channel is a 480 MHz channel, the first sub-channel is a primary 320 MHz channel, the two second sub-channels of the first channel are a first secondary 80 MHz channel and a second secondary 80 MHz channel, and the primary 320 MHz channel includes a primary 20 MHz channel.

[0189] In one embodiment, the first channel is a first type 480 MHz channel, and the channel center frequency index of the first type 480 MHz channel is 47 or 143; or, the first channel is a second type 480 MHz channel, and the channel center frequency index of the second type 480 MHz channel is 79 or 175.

[0190] In one implementation, the first channel is a 640 MHz channel, the first sub-channel is a primary 320 MHz channel, the second sub-channel is a secondary 320 MHz channel, and the primary 320 MHz channel includes a primary 20 MHz channel.

[0191] In one embodiment, the first channel is a first type 640 MHz channel, and the channel center frequency index of the first type 640 MHz channel is 63; or, the first channel is a second type 640 MHz channel, and the channel center frequency index of the second type 640 MHz channel is 159.

[0192] In one embodiment, the channel center frequency index of the primary 20 MHz channel is determined based on the channel center frequency index of the first channel, the number of 20 MHz channels included in the first channel, and the position of the primary 20 MHz channel, where the position of the primary 20 MHz channel corresponds to the channel center frequency index and bandwidth of the first channel.

[0193] In one embodiment, the channel center frequency index of the first subchannel in the first channel is determined based on the start frequency of the first channel, the channel center frequency index of the first channel, the number of 20 MHz channels included in the first channel, and the position of the main 20 MHz channel, where the position of the main 20 MHz channel corresponds to the channel center frequency index and bandwidth of the first channel;

[0194] The channel center frequency index of the second subchannel in the first channel is determined based on the start frequency of the first channel and the channel center frequency index of the first subchannel.

[0195] The site 400 of the embodiment of the present application can implement the corresponding functions of the site in the embodiment of the aforementioned method 300. The corresponding processes, functions, implementation methods, and beneficial effects of each module (sub-module, unit, or component, etc.) in the site 400 can be found in the corresponding description in the embodiment of the aforementioned method 300, and will not be repeated here. It should be noted that the functions described by each module (sub-module, unit, or component, etc.) in the site 400 of the embodiment of the application can be implemented by different modules (sub-modules, units, or components, etc.) or by the same module (sub-module, unit, or component, etc.).

[0196] The embodiments of the present application can be used for next-generation Wi-Fi communications, such as Ultra-High Reliability (UHR). The embodiments of the present application propose new channel bandwidths that can include 240 MHz, 480 MHz, and 640 MHz. The following describes the solutions of the embodiments of the present application in several aspects.

[0197] 1. Establish and channelize 240MHz bandwidth in the 5GHz band, and 480MHz and 640MHz bandwidth in the 6GHz band, and provide corresponding operating classes.

[0198] 2. According to the new channel bandwidth, a MAC element indicating the STA bandwidth support capability is provided, such as the UHR Capabilities element.

[0199] 3. Provides MAC elements indicating BSS channel configuration, such as the UHR Operation element.

[0200] 4. Based on the interface between MAC and PHY, such as PHYCONFIG_VECTOR (physical layer configuration vector), a calculation formula for the center frequency of the primary channel and the secondary channel is proposed.

[0201] 1. 240 / 480 / 640MHz channelization

[0202] 240 / 480 / 640MHz channelization specifically involves establishing and channelizing 240MHz bandwidth in the 5GHz band, and establishing and channelizing 480MHz and 640MHz bandwidths in the 6GHz band.

[0203] (1) Build 240MHz channels in the 5GHz band

[0204] When the operating frequency band of the BSS is 5 GHz, the bandwidth may include 20 MHz, 40 MHz, 80 MHz, and 160 MHz, as shown in FIG5 .

[0205] Within the UNII-2 (Unlicensed National Information Infrastructure-2) range, a 240 MHz bandwidth can be expanded, as shown in the shaded area of ​​Figure 5. The start and end frequencies of this 240 MHz bandwidth are 5490 MHz and 5730 MHz, respectively, and the channel center frequency index is 122.

[0206] For example, the channel center frequency can be calculated by the following formula.

[0207] Channel center frequency = Channel starting frequency + 5 × nch (MHz)

[0208] Wherein, the channel starting frequency is 5 GHz, nch = 1,...,200.

[0209] For the primary channel and secondary channel of the 240MHz BSS, the embodiment of the present application proposes two options, as follows.

[0210] Option 1: Primary 80MHz channel, Secondary 1 80MHz channel, and Secondary 2 80MHz channel (Primary 80MHz + Secondary 1 80MHz + Secondary 2 80MHz)

[0211] In a 240MHz BSS, the primary 80MHz channel (P80) includes the primary 20MHz channel, while the secondary 1 80MHz channel (S1-80) and secondary 2 80MHz channels (S2-80) do not include the primary 20MHz channel. The primary 80MHz, secondary 1 80MHz, and secondary 2 80MHz channels together constitute the 240MHz channel in a 240MHz BSS. The primary 20MHz channel can appear in any 20MHz sub-channel within the 240MHz channel. As shown in Figure 6, based on the position of the primary 20MHz channel, the 240MHz channel includes P80, S1-80, and S2-80, in that order. If the position of the primary 20MHz channel changes, the 240MHz channel can also include S1-80, P80, and S2-80, or alternatively, the 240MHz channel can include S1-80, S2-80, and P80, in that order.

[0212] Option 2: Primary 160MHz+Secondary1 80MHz

[0213] In a 240MHz BSS, the primary 160MHz channel (P160) includes the primary 20MHz channel, while the secondary 180MHz channel (S1-80) does not. The primary 160MHz and secondary 180MHz channels together constitute the 240MHz channels in a 240MHz BSS. As shown in Figure 7, the 240MHz channels include P160 and S1-80, respectively, based on the position of the primary 20MHz channel. If the position of the primary 20MHz channel changes, the 240MHz channels can also include S1-80 and P160, respectively.

[0214] The primary 20 MHz channel can appear in one of the 20 MHz sub-channels within a 160 MHz channel in IEEE standards. When an AP STA operating in the 5 GHz band establishes a 240 MHz BSS, as shown in Figure 5, the primary 20 MHz channel can be included in the 160 MHz channel with a center frequency index of 114. That is, the center frequency index of the primary 20 MHz channel can be at least one of 100, 104, 108, 112, 116, 120, or 128. However, 20 MHz sub-channels with center frequency indices of 132, 136, 140, and 144 cannot be used as primary 20 MHz channels.

[0215] (2) 480MHz channel construction in the 6GHz band

[0216] When the BSS operates at 6 GHz, the bandwidths defined by IEEE 802.11 include 20 MHz, 40 MHz, 80 MHz, 60 MHz, and 320 MHz, as shown in Figure 8 (the 20 MHz and 40 MHz bandwidths are not shown). This embodiment of the present application proposes a 480 MHz channel bandwidth and its channelization. Specific examples are as follows.

[0217] A 480MHz channel is composed of any three adjacent 160MHz channels in the 6GHz band. Referring to Figure 8 , this embodiment of the present application provides two types of 480MHz channel division examples: 480MHz-1 and 480MHz-2. For example, the channel center frequency indexes of 480MHz-1 are 47, 143; and the channel center frequency indexes of 480MHz-2 are 79, 175.

[0218] An example of the primary channel and secondary channel of the 480MHz BSS in the embodiment of the present application is as follows: In the 480MHz BSS, the primary 320MHz channel includes the primary 20MHz channel, and the secondary 180MHz channel and the secondary 280MHz channel do not include the primary 20MHz channel. The primary 320MHz channel, the secondary 180MHz channel, and the secondary 280MHz channel together constitute the 480MHz channel in the 480MHz BSS. The primary 20MHz channel can be any 20MHz sub-channel in the 480MHz channel. As shown in Figure 9, according to the position of the primary 20MHz channel, the 480MHz channel includes P160, S1-80, and S2-80 in sequence. If the position of the primary 20MHz channel changes, the 480MHz channel can also include S1-80, P160, and S2-80 in sequence; or the 480MHz channel can also include S1-80, S2-80, and P160 in sequence.

[0219] (3) 6GHz builds 640MHz channel

[0220] When the BSS operates at 6 GHz, the bandwidths defined by IEEE 802.11 include 20 MHz, 40 MHz, 80 MHz, 60 MHz, and 320 MHz, as shown in Figure 10 (the 20 MHz and 40 MHz bandwidths are not shown). This embodiment of the present application proposes a 640 MHz channel bandwidth and its channelization. Specific examples are as follows.

[0221] A 640MHz channel is composed of any four adjacent 160MHz channels in the 6GHz band. Referring to Figure 10, this embodiment of the present application provides an example of two types of 640MHz channel divisions: 640MHz-1 and 640MHz-2. For example, the channel center frequency index of 640MHz-1 is 63, and the channel center frequency index of 640MHz-2 is 159.

[0222] In this embodiment of the present application, in a 640 MHz BSS, the primary 320 MHz channel includes the primary 20 MHz channel, while the secondary 320 MHz channel does not. The primary 320 MHz and secondary 320 MHz channels together constitute the 640 MHz channel in the 640 MHz BSS. The primary 20 MHz channel can be any 20 MHz sub-channel within the 640 MHz channel, as shown in Figure 11. Based on the position of the primary 20 MHz channel, the 640 MHz channel sequentially includes P320 and S320. If the position of the primary 20 MHz channel changes, the 640 MHz channel can also sequentially include S320 and P320.

[0223] (4) Define the operating class

[0224] The embodiment of the present application defines a new operating class based on 240MHz, 480MHz and 640MHz bandwidths, channel start frequency and channel center frequency indexes.

[0225] Operation class a represents a 5 GHz channel with a bandwidth of 240 MHz, a channel start frequency of 5 GHz, and a channel center frequency index of 122. For example, a=138.

[0226] Operation class b indicates a 6 GHz channel with a bandwidth of 480 MHz, a channel start frequency of 5.950 GHz, and channel center frequency indices of 47, 79, 143, and 175. For example, b = 138 or 139.

[0227] Operation class c represents a 6GHz channel with a bandwidth of 640 MHz, a channel start frequency of 5.950 GHz, and a channel center frequency index of 63, 159. For example, c = 138, 139, or 140.

[0228] The operating class can be carried in a MAC frame or MAC element, such as a Reduced Neighbor Report element or a Neighbor Report element, and may include an Operating Class field. The Operating Class field specifies the operating class for the corresponding channel. The Operating Class field can be 1 byte or any other length, and can be flexibly configured based on requirements.

[0229] Table 3-1 shows the definition of the operating class. The Operating Class field indicates the operating class, which in turn indicates parameters such as the Channel starting frequency, Channel spacing, and Channel center frequency index.

[0230] Table 1 Global operating classes

[0231]

[0232] 2. MAC elements indicating STA bandwidth support capabilities, such as the UHR Capabilities element

[0233] A STA declares itself as a UHR STA by transmitting the UHR Capabilities element. If the STA is an AP STA, the UHR Capabilities element can be included in a Beacon frame, a Probe Response frame, an Association Response frame, or a Reassociation Response frame. If the STA is a non-AP STA, the UHR Capabilities element can be included in a Probe Request frame, an Association Request frame, or a Reassociation Request frame.

[0234] The UHR Capabilities element contains a series of fields used to broadcast the UHR capabilities of the UHR STA. As shown in Figure 12, the UHR Capabilities element may include an element ID, a length, an element ID extension, and UHT PHY capability information.

[0235] In an embodiment of the present application, examples of the "Support For 240MHz In 5GHz" subfield, the "Support For 480MHz In 6GHz" subfield, and the "Support For 640MHz In 6GHz" subfield in the UHR PHY Capabilities Information field are shown in Table 2.

[0236] Table 2 Subfields of the UHR PHY Capabilities Information field

[0237]

[0238]

[0239] 3. MAC elements indicating BSS channel configuration, such as the UHR Operation element

[0240] The stations in the UHR BSS (UHR STAs) are controlled by the following elements:

[0241] If the STA's operating frequency band is 2.4 GHz, HT (High-throughput) Operation element, HE (High-efficiency) Operation element, EHT (Extremely high throughput) Operation element, and UHR Operation element.

[0242] If the STA's operating frequency band is 5 GHz, VHT (Very High Throughput) Operation element, HE Operation element, EHT Operation element, and UHR Operation element.

[0243] If the STA's operating frequency band is 6 GHz, HE Operation element, EHT Operation element, and UHR Operation element.

[0244] For example, an example of the format of the UHR Operation element is shown in Figure 13, which may include an element identifier (Element ID), a length (Length), an element identifier extension (Element ID Extension), and UHT operation information (Operation Information). The UHR Operation element may be included in a Beacon frame, a Probe Response frame, an Association Response frame, or a Reassociation Response frame transmitted by an AP STA. In addition, the UHR non-AP STA obtains BSS channel configuration information from the UHR Operation Information subfield in the UHR Operation element. An embodiment of the present application provides an example of the UHR Operation Information subfield.

[0245] The UHR Operation Information subfield can contain:

[0246] (1) Control subfield, used to indicate bandwidth.

[0247] (2) CCFS (Channel Center Frequency Segment) subfield, used to indicate the BSS channel center frequency index.

[0248] The Disabled Subchannel Bitmap subfield can be a 32-bit bitmap, where the least significant bit indicates the lowest-frequency 20 MHz subchannel in the BSS bandwidth. Each successive bit in the bitmap indicates the next higher-frequency 20 MHz subchannel. A bit of 1 indicates that the corresponding 20 MHz subchannel is punctured, and a bit of 0 indicates that the corresponding 20 MHz subchannel is not punctured. The puncturing pattern can follow the puncturing pattern used for non-OFDMA PPDU transmissions.

[0249] Depending on the number of CCFSs, the embodiment of the present application provides two formats of UHR Operation Information subfields, as shown below.

[0250] Format 1: CCFS0+CCFS1

[0251] The format 1 of the UHR Operation Information subfield is shown in Figure 14. Two subfields CCFS0 and CCFS1 are used to indicate the channel center frequency index.

[0252] For CCFS0, when the BSS bandwidth is at least one of 20 MHz, 40 MHz, and 80 MHz, CCFS0 indicates the channel center frequency index of the BSS bandwidth. When the BSS bandwidth is at least one of 160 MHz, 240 MHz, 320 MHz, 480 MHz, and 640 MHz, CCFS0 indication may include at least one of the following:

[0253] When the BSS bandwidth is 160 MHz, CCFS0 indicates the primary 80 MHz channel center frequency index in the 160 MHz BSS.

[0254] When the BSS bandwidth is 240 MHz, CCFS0 indicates the primary 80 MHz or primary 160 MHz channel center frequency index in the 240 MHz BSS.

[0255] When the BSS bandwidth is 320 MHz, CCFS0 indicates the primary 160 MHz channel center frequency index in the 320 MHz BSS.

[0256] When the BSS bandwidth is 480 MHz, CCFS0 indicates the primary 320 MHz channel center frequency index in the 480 MHz BSS.

[0257] When the BSS bandwidth is 640 MHz, CCFS0 indicates the primary 320 MHz channel center frequency index in the 640 MHz BSS.

[0258] For CCFS1, when the BSS bandwidth is 20 MHz, 40 MHz, or 80 MHz, CCFS1 is set to all 0s. When the BSS bandwidth is at least one of 160 MHz, 240 MHz, 320 MHz, 480 MHz, and 640 MHz, CCFS1 indicates the channel center frequency index of at least one of the BSS bandwidths of 160 MHz, 240 MHz, 320 MHz, 480 MHz, and 640 MHz, respectively. See Tables 3 and 4.

[0259] Example 1:

[0260] Table 3 Channel Width (Channel Width), CCFS0, CCFS1 Subfields in Format 1

[0261]

[0262]

[0263]

[0264] Table 4 UHR BSS channel width in format 1

[0265]

[0266] The channel width value of 4 in the above table indicates that CCFS1>0 and |CCFS1–CCFS0|=16, corresponding to the above option 1; or indicates that CCFS1>0 and |CCFS1–CCFS0|=8, corresponding to the above option 2.

[0267] Format 2: CCFS0

[0268] The format 2 of the UHR Operation Information subfield is shown in Figure 15.

[0269] When the BSS bandwidth is 20 / 40 / 80 / 160 / 240 / 320 / 480 / 640 MHz, the subfield CCFS0 is used to indicate the channel center frequency index of the 20 / 40 / 80 / 160 / 240 / 320 / 480 / 640 MHz channel, respectively.

[0270] Example 2:

[0271] Table 5 Channel Width, CCFS0, CCFS1 subfields in Format 2

[0272]

[0273]

[0274] 4. Interaction between MAC and PHY - Channel Center Frequency

[0275] The PHY can provide an interface to the MAC by extending the general PHY service interface. This interface may include TXVECTOR (transmit vector), RXVECTOR (receive vector), PHYCONFIG_VECTOR (physical layer configuration vector), and TRIG_VECTOR (trigger vector). Among them, the MAC can use PHYCONFIG_VECTOR to configure the PHY so that the PHY operation is independent of frame transmission or reception.

[0276] For example, the PHYCONFIG_VECTOR carried in the UHR PHY's PHY-CONFIG.request primitive contains an OPERATING_CHANNEL parameter that indicates the operating channel or primary channel. The PHY may set the dot11CurrentPrimaryChannel to the value of the OPERATING_CHANNEL parameter.

[0277] For example, the PHYCONFIG_VECTOR carried in the UHR PHY's PHY-CONFIG.request primitive contains a CHANNEL_WIDTH parameter, which indicates the operating channel bandwidth. The value can be one of 20MHz, 40MHz, 80MHz, 160MHz, 240MHz, 320MHz, 480MHz, and 640MHz. The PHY can set the dot11UHRCurrentChannelWidth (UHR current channel width) to the value of the CHANNEL_WIDTH parameter.

[0278] For example, the PHYCONFIG_VECTOR carried in the PHY-CONFIG.request primitive of the UHR PHY contains a CENTER_FREQUENCY_SEGMENT_0 parameter, which indicates the channel center frequency. The value is between 1 and 255. The PHY shall set the dot11UHRCurrentChannelCenterFrequencyIndex0 (current channel center frequency index) to the value of the CENTER_FREQUENCY_SEGMENT_0 parameter.

[0279] The Operating Class field in the MAC frame indicates the channel start frequency.

[0280] You can make:

[0281] f c,idx0 =dot11UHRCurrentChannelCenterFrequencyIndex0 (1)

[0282] f P20,idx =dot11CurrentPrimaryChannel(2)

[0283] f CH,start=dot11ChannelStartingFactor×500kHz (3)

[0284] Among them, dot11UHRCurrentChannelCenterFrequencyIndex0 and dot11CurrentPrimaryChannel are shown in Table 6, and dot11ChannelStartingFactor×500kHz indicates the channel starting frequency.

[0285] Table 6 specifies the fields of the UHR channel

[0286]

[0287]

[0288] (1) Calculate the channel center frequency index of the main 20MHz channel

[0289] When UHR dot11UHRCurrentChannelWidth is 240MHz, 480MHz, or 640MHz, the channel center frequency index f of the primary 20MHz channel P20,idx and the center frequency index f of the current channel c,idx0 The relationship is as follows:

[0290]

[0291] Among them, N 20MHz The number of 20 MHz sub-channels in the current channel.

[0292] This formula indicates that when the current channel width is 240MHz, N 20MHz =12; when the current channel width is 480MHz, N 20MHz =24; when the current channel width is 640MHz, N 20MHz =36.

[0293] Position n of the main 20MHz channel P20 Is an integer representing the position of the primary 20MHz channel corresponding to dot11UHRCurrentChannelCenterFrequencyIndex0 (UHR current channel center frequency index) and dot11UHRCurrentChannelWidth (UHR current channel width). Possible values ​​are 0≤n P20 ≤N 20MHz -1.

[0294] (2) Calculate the channel center frequency index of the main channel, auxiliary channel 1, and auxiliary channel 2 in 240MHz

[0295] When UHR dot11UHRCurrentChannelWidth is 240MHz, N 20MHz =12,

[0296] (2-1) For Option 1 (P80+S1-80+S2-80):

[0297] The center frequency of the main 80MHz channel is f CH,start +5×f P80,idx MHz, where the channel center frequency index of the main 80 MHz channel is f P80,idx As shown in formula (5):

[0298]

[0299] in, n P20 An integer representing the position of the primary 20MHz channel corresponding to dot11UHRCurrentChannelCenterFrequencyIndex0 and dot11UHRCurrentChannelWidth. Possible values ​​are 0≤n P20 ≤N 20MHz -1.

[0300] The center frequency of the Secondary1 80MHz channel is f CH,start +5×f S1 80,idx MHz, the center frequency of the Secondary2 80MHz channel is f CH,start +5×f S2 80,idx MHz, where the channel center frequency index f of the auxiliary 1 80MHz channel S1 80,idx and the channel center frequency index f of the auxiliary 1 80MHz channel S2 80,idx As shown in formulas (6)-(8)

[0301] When n P80 =0, indicating that the main 80MHz channel (P80) is located at the lowest frequency position.

[0302] f S1 80,idx =f P80,idx +16

[0303] f S2 80,idx =f P80,idx +2×16 (6)

[0304] When n P80=1, indicating that the main 80MHz channel (P80) is located at the middle frequency position.

[0305] f S1 80,idx =f P80,idx -16

[0306] f S2 80,idx =f P80,idx +16 (7)

[0307] When n P80 =2, indicating that the main 80MHz channel (P80) is located at the highest frequency position.

[0308] f S1 80,idx =f P80,idx -16

[0309] f S2 80,idx =f P80,idx -2×16 (8)

[0310] (2-2) For Option 2 (P160+S1-80):

[0311] The center frequency of the main 160MHz channel is f CH,start +5×f P160,idx MHz, where the channel center frequency index of the main 160 MHz channel is f P160,idx As shown in formula (9)

[0312]

[0313] The center frequency of the Secondary1 80MHz channel is f CH,start +5×f S1 80,idx MHz, where the channel center frequency index f of the auxiliary 1 80MHz channel S1 80,idx As shown in formula (10):

[0314] f S1 80,idx =f P160,idx +24 (10)

[0315] in, n P20 An integer representing the position of the primary 20MHz channel corresponding to dot11UHRCurrentChannelCenterFrequencyIndex0 and dot11UHRCurrentChannelWidth. Possible values ​​are 0≤n P20 ≤7.

[0316] (3) Calculate the channel center frequency index of primary 320MHz, secondary 1 80MHz and secondary 2 80MHz in 480MHz

[0317] When UHR dot11UHRCurrentChannelWidth is 480MHz, N 20MHz =24,

[0318] The center frequency of the Primary 320MHz channel is f CH,start +5×f P320,idx MHz, where the channel center frequency index of the main 320 MHz channel is f P320,idx As shown in formula (11)

[0319]

[0320] in, n P20 An integer representing the position of the primary 20MHz channel corresponding to dot11UHRCurrentChannelCenterFrequencyIndex0 and dot11UHRCurrentChannelWidth. Possible values ​​are 0≤n P20 ≤N 20MHz -1.

[0321] The center frequency of the Secondary1 80MHz channel is f CH,start +5×f S1 80,idx MHz, the center frequency of the Secondary2 80MHz channel is f CH,start +5×f S2 80,idx MHz, where the channel center frequency index f of the auxiliary 1 80MHz channel S1 80,idx and the channel center frequency index f of the auxiliary 2 80MHz channel S2 80,idx As shown in formula (12)-(13)

[0322] When n P320 =0, indicating that the main 320MHz channel (P320) is located at the lowest frequency position.

[0323] f S1 80,idx =f P320,idx +40

[0324] f S2 80,idx =f P320,idx +56 (12)

[0325] When n P320=1, indicating that the main 320MHz channel (P320) is located at the highest frequency position.

[0326] f S1 80,idx =f P320,idx -40

[0327] f S2 80,idx =f P320,idx -56 (13)

[0328] (4) Calculate the channel center frequency index of primary 320MHz and secondary 320MHz in 640MHz

[0329] When UHR dot11UHRCurrentChannelWidth is 640MHz, N 20MHz =32,

[0330] The center frequency of the Primary 320MHz channel is f CH,start +5×f P320,idx MHz, where the channel center frequency index of the main 320MHz channel is f P320,idx As shown in formula (14)

[0331]

[0332] The center frequency of the Secondary 320MHz channel is f CH,start +5×f S320,idx MHz, where the channel center frequency index of the auxiliary 320MHz channel is f S320,idx As shown in formula (15)

[0333]

[0334] in, n P20 An integer representing the position of the primary 20MHz channel corresponding to dot11UHRCurrentChannelCenterFrequencyIndex0 and dot11UHRCurrentChannelWidth. Possible values ​​are 0≤n P20 ≤N 20MHz -1.

[0335] The 240 MHz, 480 MHz, and 640 MHz channel bandwidths proposed in the embodiments of the present application for next-generation Wi-Fi communications can increase data rates and the number of OFDMA transmission users, thereby greatly improving the utilization of 5 GHz and 6 GHz spectrum resources.

[0336] In addition, similar to the embodiment of the present application in which a 240 MHz channel bandwidth is constructed at 5 GHz, a 240 MHz channel bandwidth can also be constructed at 6 GHz. A 240 MHz channel at 6 GHz can also be constructed by puncturing an 80 MHz sub-channel from a 320 MHz bandwidth in the standard.

[0337] Figure 16 is a schematic structural diagram of a communication device 1600 according to an embodiment of the present application. The communication device 1600 includes a processor 1610, which can call and execute a computer program from a memory to enable the communication device 1600 to implement the method in the embodiment of the present application.

[0338] In one embodiment, the communication device 1600 may further include a memory 1620. The processor 1610 may call and execute a computer program from the memory 1620 to enable the communication device 1600 to implement the method in the embodiment of the present application.

[0339] The memory 1620 may be a separate device independent of the processor 1610 , or may be integrated into the processor 1610 .

[0340] In one embodiment, the communication device 1600 may further include a transceiver 1630 , and the processor 1610 may control the transceiver 1630 to communicate with other devices. Specifically, the transceiver 1630 may send information or data to other devices, or receive information or data sent by other devices.

[0341] The transceiver 1630 may include a transmitter and a receiver. The transceiver 1630 may further include an antenna, and the number of antennas may be one or more.

[0342] In one embodiment, the communication device 1600 may be a site in an embodiment of the present application, and the communication device 1600 may implement the corresponding processes implemented by the site in each method in the embodiment of the present application. For the sake of brevity, they will not be repeated here.

[0343] 17 is a schematic structural diagram of a chip 1700 according to an embodiment of the present application. The chip 1700 includes a processor 1710, which can call and execute a computer program from a memory to implement the method according to the embodiment of the present application.

[0344] In one embodiment, the chip 1700 may further include a memory 1720. The processor 1710 may call and execute a computer program from the memory 1720 to implement the method executed by the station in the embodiment of the present application.

[0345] The memory 1720 may be a separate device independent of the processor 1710 , or may be integrated into the processor 1710 .

[0346] In one embodiment, the chip 1700 may further include an input interface 1730. The processor 1710 may control the input interface 1730 to communicate with other devices or chips, and specifically, may obtain information or data sent by other devices or chips.

[0347] In one embodiment, the chip 1700 may further include an output interface 1740. The processor 1710 may control the output interface 1740 to communicate with other devices or chips, and specifically, may output information or data to other devices or chips.

[0348] In one embodiment, the chip can be applied to the site in the embodiments of the present application, and the chip can implement the corresponding processes implemented by the site in each method of the embodiments of the present application. For the sake of brevity, it will not be repeated here.

[0349] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0350] The processor mentioned above may be a general-purpose processor, a digital signal processor (DSP), a field programmable gate array (FPGA), an application specific integrated circuit (ASIC), or other programmable logic devices, transistor logic devices, discrete hardware components, etc. The general-purpose processor mentioned above may be a microprocessor or any conventional processor, etc.

[0351] The memory mentioned above may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories. The non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM).

[0352] It should be understood that the above-mentioned memories are exemplary but not restrictive. For example, the memories in the embodiments of the present application may also be static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct RAM RAM (DR RAM), etc. In other words, the memories in the embodiments of the present application are intended to include, but are not limited to, these and any other suitable types of memories.

[0353] FIG18 is a schematic block diagram of a communication system 1800 according to an embodiment of the present application. The communication system 1800 includes a first site 1810 and a second site 1820 .

[0354] The first station 1810 can be used to implement the corresponding functions implemented by the non-AP station in the above method, and the second station 1820 can be used to implement the corresponding functions implemented by the AP station in the above method. For the sake of brevity, they are not described here in detail.

[0355] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When software is used for implementation, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function in accordance with the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from a website, computer, server or data center by wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) mode to another website, computer, server or data center. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that includes one or more available media integrations. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a DVD), or a semiconductor medium (eg, a solid state disk (SSD)).

[0356] It should be understood that in the various embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0357] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0358] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present application should be included within the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A communication method, comprising: The station obtains first information, where the first information is used to indicate bandwidth-related information of a first channel.

2. The method according to claim 1, wherein The information related to the bandwidth of the first channel includes information related to that the bandwidth of the first channel is greater than a set bandwidth.

3. The method according to claim 1 or 2, wherein: The bandwidth-related information of the first channel includes at least one of the following: a starting frequency, a bandwidth of a sub-channel, and a channel center frequency index of the sub-channel.

4. The method according to any one of claims 1 to 3, wherein The bandwidth-related information of the first channel includes an operation class corresponding to the first channel, where the operation class corresponding to the first channel is used to indicate at least one of a bandwidth, a starting frequency, and a channel center frequency index of the first channel.

5. The method according to claim 4, wherein The operation type corresponding to the first channel includes at least one of the following: A first operation class indicates that the first channel is a channel with a bandwidth of 240 MHz in the 5 GHz frequency band, the start frequency of the first channel is 5 GHz, and the channel center frequency index of the first channel is 122; The second operation class indicates that the first channel is a channel with a bandwidth of 480 MHz in the 6 GHz frequency band, the start frequency of the first channel is 5.950 GHz, and the channel center frequency index of the first channel is 47, 79, 143, or 175; The third operation class indicates that the first channel is a channel with a bandwidth of 640 MHz in the 6 GHz frequency band, the starting frequency of the first channel is 5.950 GHz, and the channel center frequency index of the first channel is 63 or 159.

6. The method according to claim 4 or 5, wherein: The operation class corresponding to the first channel is in the operation class field of the first MAC frame and / or the first MAC element.

7. The method according to claim 6, wherein: The operation type field is used to indicate at least one of the following parameters: Channel start frequency; Channel spacing; Channel center frequency index.

8. The method according to any one of claims 1 to 7, wherein The bandwidth-related information of the first channel includes the bandwidth support capability of the site.

9. The method according to claim 8, wherein The bandwidth support capability of the station includes whether the station supports a physical layer protocol data unit PPDU related to the bandwidth of the first channel when operating in the first frequency band.

10. The method according to claim 9, wherein: The bandwidth support capability of the site includes at least one of the following: Whether non-OFDMA 240MHz PPDU is supported when operating in the 5GHz band; Whether non-OFDMA 480MHz PPDU is supported when operating in the 6GHz band; Whether non-OFDMA 640MHz PPDU is supported when operating in the 6GHz band.

11. The method according to any one of claims 8 to 10, wherein The bandwidth support capability of the site is in the UHR PHY capability information field of the ultra-high reliability UHR capability element.

12. The method according to claim 11, wherein The UHR capability element is a second MAC element, and / or the UHR capability element is in a second MAC frame.

13. The method according to any one of claims 1 to 12, wherein The bandwidth-related information of the first channel includes configuration information of the first channel of the basic service set BSS of the station.

14. The method according to claim 13, wherein The configuration information of the first channel includes: A field for indicating bandwidth; A field used to indicate the channel center frequency index.

15. The method according to claim 14, wherein The field used to indicate the channel center frequency index is a channel center frequency segment CCFS field, and the CCFS field includes a first CCFS subfield and a second CCFS subfield; The first CCFS subfield is used to indicate a channel center frequency index of a primary channel in the first channels, and the second CCFS subfield is used to indicate a channel center frequency index of the first channel.

16. The method according to claim 14, wherein The field used to indicate the channel center frequency index is a CCFS field, and the CCFS field includes a third CCFS subfield, and the third CCFS subfield is used to indicate the channel center frequency index of the first channel of the BSS.

17. The method according to any one of claims 1 to 13, wherein The configuration information of the first channel is in the UHR operation information field in the UHR operation element.

18. The method according to claim 17, wherein The UHR operation element is at least one of the following: Beacon frame, probe response frame, association response frame, and reassociation response frame.

19. The method according to any one of claims 1 to 18, wherein The first channel includes N adjacent second channels, where N is an integer greater than 1; the bandwidth of the first channel is equal to the sum of the bandwidths of the N second channels.

20. The method according to claim 19, wherein The first channel is a 240 MHz channel, which is a channel with a bandwidth of 240 MHz in the 5 GHz frequency band. The first channel includes three adjacent second channels, which are channels with a bandwidth of 80 MHz in the 5 GHz frequency band.

21. The method according to claim 19, wherein The first channel is a 480 MHz channel, which is a channel with a bandwidth of 480 MHz in the 6 GHz frequency band. The first channel includes three adjacent second channels, which are channels with a bandwidth of 160 MHz in the 6 GHz frequency band.

22. The method according to claim 19, wherein The first channel is a 640 MHz channel, which is a channel with a bandwidth of 640 MHz in the 6 GHz frequency band. The first channel includes four adjacent second channels, which are channels with a bandwidth of 160 MHz in the 6 GHz frequency band.

23. The method according to any one of claims 19 to 22, wherein The sub-channels of the first channel include a first sub-channel and at least one second sub-channel, the first sub-channel is a main channel, and the second sub-channel is a secondary channel.

24. The method according to claim 23, wherein The first channel is a 240 MHz channel, the first sub-channel is a primary 80 MHz channel, the two second sub-channels of the first channel are respectively a first auxiliary 80 MHz channel and a second auxiliary 80 MHz channel, and the primary 80 MHz channel includes a primary 20 MHz channel.

25. The method according to claim 23, wherein The first channel is a 240 MHz channel, the first sub-channel is a primary 160 MHz channel, the second sub-channel is a secondary 80 MHz channel, and the primary 160 MHz channel includes a primary 20 MHz channel.

26. The method according to claim 25, wherein The channel center frequency index of the primary 20 MHz channel is 100, 104, 108, 112, 116, 120, or 128.

27. The method according to claim 23, wherein The first channel is a 480 MHz channel, the first sub-channel is a primary 320 MHz channel, the two second sub-channels of the first channel are respectively a first secondary 80 MHz channel and a second secondary 80 MHz channel, and the primary 320 MHz channel includes a primary 20 MHz channel.

28. The method according to claim 27, wherein The first channel is a first type 480MHz channel, and the channel center frequency index of the first type 480MHz channel is 47 or 143; or, the first channel is a second type 480MHz channel, and the channel center frequency index of the second type 480MHz channel is 79 or 175.

29. The method according to claim 23, wherein The first channel is a 640 MHz channel, the first sub-channel is a primary 320 MHz channel, the second sub-channel is a secondary 320 MHz channel, and the primary 320 MHz channel includes a primary 20 MHz channel.

30. The method according to claim 29, wherein The first channel is a first type 640 MHz channel, and the channel center frequency index of the first type 640 MHz channel is 63; or, the first channel is a second type 640 MHz channel, and the channel center frequency index of the second type 640 MHz channel is 159.

31. The method according to any one of claims 24 to 29, wherein The channel center frequency index of the main 20MHz channel is determined based on the channel center frequency index of the first channel, the number of 20MHz channels included in the first channel, and the position of the main 20MHz channel, and the position of the main 20MHz channel corresponds to the channel center frequency index of the first channel and the position of the main 20MHz channel of the bandwidth.

32. The method according to any one of claims 23 to 31, wherein A channel center frequency index of a first subchannel in the first channel is determined based on a start frequency of the first channel, a channel center frequency index of the first channel, a number of 20 MHz channels included in the first channel, and a position of a primary 20 MHz channel, where the position of the primary 20 MHz channel corresponds to the channel center frequency index and bandwidth of the first channel; A channel center frequency index of a second subchannel in the first channel is determined based on a start frequency of the first channel and a channel center frequency index of the first subchannel.

33. A site comprising: The processing unit is configured to obtain first information, where the first information is used to indicate bandwidth-related information of the first channel.

34. The station according to claim 33, wherein The information related to the bandwidth of the first channel includes information related to that the bandwidth of the first channel is greater than a set bandwidth.

35. A station according to claim 33 or 34, wherein The bandwidth-related information of the first channel includes at least one of the following: a starting frequency, a bandwidth of a sub-channel, and a channel center frequency index of the sub-channel.

36. A station according to any one of claims 33 to 35, wherein The bandwidth-related information of the first channel includes an operation class corresponding to the first channel, where the operation class corresponding to the first channel is used to indicate at least one of a bandwidth, a starting frequency, and a channel center frequency index of the first channel.

37. The station according to claim 36, wherein The operation type corresponding to the first channel includes at least one of the following: A first operation class indicates that the first channel is a channel with a bandwidth of 240 MHz in the 5 GHz frequency band, the start frequency of the first channel is 5 GHz, and the channel center frequency index of the first channel is 122; The second operation class indicates that the first channel is a channel with a bandwidth of 480 MHz in the 6 GHz frequency band, the start frequency of the first channel is 5.950 GHz, and the channel center frequency index of the first channel is 47, 79, 143, or 175; The third operation class indicates that the first channel is a channel with a bandwidth of 640 MHz in the 6 GHz frequency band, the starting frequency of the first channel is 5.950 GHz, and the channel center frequency index of the first channel is 63 or 159.

38. A station according to claim 36 or 37, wherein The operation class corresponding to the first channel is in the operation class field of the first MAC frame and / or the first MAC element.

39. The station according to claim 38, wherein The operation type field is also used to indicate at least one of the following parameters: Channel start frequency; Channel spacing; Channel center frequency index.

40. A station according to any one of claims 33 to 39, wherein The bandwidth-related information of the first channel includes the bandwidth support capability of the site.

41. The station according to claim 40, wherein The bandwidth support capability of the station includes whether the station supports a physical layer protocol data unit PPDU related to the bandwidth of the first channel when operating in the first frequency band.

42. The station according to claim 41, wherein The bandwidth support capability of the site includes at least one of the following: Whether non-OFDMA 240MHz PPDU is supported when operating in the 5GHz band; Whether non-OFDMA 480MHz PPDU is supported when operating in the 6GHz band; Whether non-OFDMA 640MHz PPDU is supported when operating in the 6GHz band.

43. A station according to any one of claims 40 to 42, wherein The bandwidth support capability of the site is in the UHR PHY capability information field of the ultra-high reliability UHR capability element.

44. The station of claim 43, wherein The UHR capability element is a second MAC element, and / or the UHR capability element is in a second MAC frame.

45. A station according to any one of claims 33 to 44, wherein The bandwidth-related information of the first channel includes configuration information of the first channel of the basic service set BSS of the station.

46. ​​The station of claim 45, wherein The configuration information of the first channel includes: A field for indicating bandwidth; A field used to indicate the channel center frequency index.

47. The station of claim 46, wherein The field used to indicate the channel center frequency index is a channel center frequency segment CCFS field, and the CCFS field includes a first CCFS subfield and a second CCFS subfield; The first CCFS subfield is used to indicate a channel center frequency index of a primary channel in the first channels, and the second CCFS subfield is used to indicate a channel center frequency index of the first channel.

48. The station of claim 46, wherein The field used to indicate the channel center frequency index is a CCFS field, and the CCFS field includes a third CCFS subfield, and the third CCFS subfield is used to indicate the channel center frequency index of the first channel of the BSS.

49. A station according to any one of claims 33 to 45, wherein The configuration information of the first channel is in the UHR operation information field in the UHR operation element.

50. The station of claim 49, wherein The UHR operation element is at least one of the following: Beacon frame, probe response frame, association response frame, and reassociation response frame.

51. A station according to any one of claims 33 to 50, wherein The first channel includes N adjacent second channels, where N is an integer greater than 1; the bandwidth of the first channel is equal to the sum of the bandwidths of the N second channels.

52. The station of claim 51, wherein The first channel is a 240 MHz channel, which is a channel with a bandwidth of 240 MHz in the 5 GHz frequency band. The first channel includes three adjacent second channels, which are channels with a bandwidth of 80 MHz in the 5 GHz frequency band.

53. The station of claim 51, wherein The first channel is a 480 MHz channel, which is a channel with a bandwidth of 480 MHz in the 6 GHz frequency band. The first channel includes three adjacent second channels, which are channels with a bandwidth of 160 MHz in the 6 GHz frequency band.

54. The station of claim 51, wherein The first channel is a 640 MHz channel, which is a channel with a bandwidth of 640 MHz in the 6 GHz frequency band. The first channel includes four adjacent second channels, which are channels with a bandwidth of 160 MHz in the 6 GHz frequency band.

55. A station according to any one of claims 51 to 54, wherein The sub-channels of the first channel include a first sub-channel and at least one second sub-channel, the first sub-channel is a main channel, and the second sub-channel is a secondary channel.

56. The station of claim 55, wherein The first channel is a 240 MHz channel, the first sub-channel is a primary 80 MHz channel, the two second sub-channels of the first channel are respectively a first secondary 80 MHz channel and a second secondary 80 MHz channel, and the primary 80 MHz channel includes a primary 20 MHz channel.

57. The station of claim 55, wherein The first channel is a 240 MHz channel, the first sub-channel is a primary 160 MHz channel, the second sub-channel is a secondary 80 MHz channel, and the primary 160 MHz channel includes a primary 20 MHz channel.

58. The station of claim 57, wherein The channel center frequency index of the primary 20 MHz channel is 100, 104, 108, 112, 116, 120, or 128.

59. The station of claim 55, wherein The first channel is a 480 MHz channel, the first sub-channel is a primary 320 MHz channel, the two second sub-channels of the first channel are respectively a first secondary 80 MHz channel and a second secondary 80 MHz channel, and the primary 320 MHz channel includes a primary 20 MHz channel.

60. The station of claim 59, wherein The first channel is a first type 480MHz channel, and the channel center frequency index of the first type 480MHz channel is 47 or 143; or, the first channel is a second type 480MHz channel, and the channel center frequency index of the second type 480MHz channel is 79 or 175.

61. The station of claim 55, wherein: The first channel is a 640 MHz channel, the first sub-channel is a primary 320 MHz channel, the second sub-channel is a secondary 320 MHz channel, and the primary 320 MHz channel includes a primary 20 MHz channel.

62. The station according to claim 61, wherein The first channel is a first type 640 MHz channel, and the channel center frequency index of the first type 640 MHz channel is 63; or, the first channel is a second type 640 MHz channel, and the channel center frequency index of the second type 640 MHz channel is 159.

63. A station according to any one of claims 56 to 61, wherein The channel center frequency index of the main 20MHz channel is determined based on the channel center frequency index of the first channel, the number of 20MHz channels included in the first channel, and the position of the main 20MHz channel, and the position of the main 20MHz channel corresponds to the channel center frequency index and bandwidth of the first channel.

64. A station according to any one of claims 55 to 63, wherein A channel center frequency index of a first subchannel in the first channel is determined based on a start frequency of the first channel, a channel center frequency index of the first channel, a number of 20 MHz channels included in the first channel, and a position of a primary 20 MHz channel, where the position of the primary 20 MHz channel corresponds to the channel center frequency index and bandwidth of the first channel; A channel center frequency index of a second subchannel in the first channel is determined based on a start frequency of the first channel and a channel center frequency index of the first subchannel.

65. A communication device comprising: A processor and a memory, the memory being used to store a computer program, the processor being used to call and run the computer program stored in the memory, so that the communication device executes the method according to any one of claims 1 to 32.

66. A chip comprising: A processor, configured to call and execute a computer program from a memory, so that a device equipped with the chip executes the method according to any one of claims 1 to 32.

67. A computer-readable storage medium for storing a computer program, which, when executed by a device, causes the device to perform the method according to any one of claims 1 to 32.

68. A computer program product comprising computer program instructions for causing a computer to perform the method of any one of claims 1 to 32.

69. A computer program causing a computer to perform the method of any one of claims 1 to 32.

Images