Wireless communication methods, apparatuses, and devices

Abstract

The application provides a wireless communication method, device and equipment, wherein the method comprises: generating a first frame, the first frame comprising at least one of first indication information, second indication information and third indication information; sending the first frame to a first station, the first station comprising at least one of a DSO station, an NPCA station and an NPCA and DSO station; the first indication information is used for indicating that the DSO station switches to a target DSO subband and responds to the first frame on a first resource unit RU allocated by the first access point, the first RU being a RU in the target DSO subband without overlapping with an NPCA main channel; the second indication information is used for indicating that the NPCA station performs NPCA access in a first NPCA bandwidth, the first NPCA bandwidth being a part or all of the bandwidth of the NPCA bandwidth reserved to contain the NPCA main channel; and the third indication information is used for indicating that the NPCA and DSO station respond to the first frame on the overlapping bandwidth of the NPCA bandwidth and the target DSO subband. The effect of simultaneously considering spectrum interference and utilization can be achieved.

Description

Technical Field

[0001] This application relates to the field of communications, and more specifically, to a wireless communication method, apparatus, and device. Background Technology

[0002] The 802.11bn protocol (Wi-Fi 8) introduces the NPCA (Non-Primary Channel Access) mechanism. This mechanism aims to allow access points (APs) and non-AP stations (STAs) to switch to the NPCA primary channel (NPCH) for data transmission when the primary channel is busy due to OBSS (Overlapping Basic Service Set) traffic interference or other preset conditions. This expands the reliance on the primary channel and makes better use of transmission opportunities on idle non-primary channels, thereby improving spectrum utilization.

[0003] The 802.11bn protocol also introduces the DSO (Dynamic Subband Operation) mechanism, which allows DSO STAs with operating bandwidth narrower than DSO APs to be dynamically allocated frequency resources outside their current operating bandwidth within the BSS (Basic Service Set) bandwidth of the DSO AP, improving the utilization efficiency of wireless resources, system capacity, and user experience.

[0004] In wireless communication scenarios, both NPCA and DSO technologies enable STAs to utilize frequency domain resources outside the main channel within the BSS operating bandwidth to improve channel utilization. However, using NPCA and DSO technologies simultaneously may lead to frequency domain resource conflicts. Summary of the Invention

[0005] This application provides a wireless communication method, apparatus, and device to resolve the problem of spectrum resource conflict.

[0006] In a first aspect, a wireless communication method is provided, applied to a first access point, the method comprising:

[0007] A first frame is generated, the first frame including at least one of first indication information, second indication information, and third indication information;

[0008] The first frame is sent to a first site within the first access point basic service set (BSS), the first site including at least one of a dynamic subband operation (DSO) site, a non-primary channel access (NPCA) site, and a site that simultaneously supports NPCA and DSO.

[0009] The first indication information is used to instruct the DSO site to switch to the target DSO subband and respond to the first frame on the first resource unit (RU) allocated by the first access point. The first RU is an RU in the target DSO subband that does not overlap with the NPCA main channel.

[0010] The second indication information is used to instruct the NPCA site to access the NPCA via the first NPCA bandwidth, where the first NPCA bandwidth is a portion or all of the bandwidth reserved in the NPCA bandwidth that includes the NPCA main channel;

[0011] The third indication information is used to instruct the site that simultaneously supports NPCA and DSO to respond to the first frame on the overlapping bandwidth of the NPCA bandwidth and the target DSO subband.

[0012] Secondly, a wireless communication method is provided, applied to a first station, the method comprising:

[0013] The system receives a first frame sent by a first access point, which includes at least one of a first indication information, a second indication information, and a third indication information. The first indication information instructs the DSO site to switch to a target DSO subband and respond to the first frame on a first resource unit (RU) allocated by the first access point. The first RU is an RU in the target DSO subband that does not overlap with the NPA main channel. The second indication information instructs the NPA site to perform NPA access in a first NPA bandwidth. The first NPA bandwidth is a portion or all of the bandwidth reserved in the NPA bandwidth that includes the NPA main channel. The third indication information instructs a site that simultaneously supports both NPA and DSO to respond to the first frame on the overlapping bandwidth of the NPA bandwidth and the target DSO subband.

[0014] The first site performs corresponding operations based on its own site type and corresponding instruction information. The site type includes at least one of DSO site, NPCA site, and site that supports both NPCA and DSO.

[0015] Thirdly, a wireless communication device is provided, comprising:

[0016] A generation module is used to generate a first frame, wherein the first frame includes at least one of first indication information, second indication information, and third indication information;

[0017] The first transceiver module is used to send the first frame to a first site within the first access point basic service set (BSS). The first site includes at least one of the following: a dynamic subband operation (DSO) site, a non-main channel access (NPCA) site, and a site that simultaneously supports NPCA and DSO.

[0018] The first indication information is used to instruct the DSO site to switch to the target DSO subband and respond to the first frame on the first resource unit (RU) allocated by the first access point. The first RU is an RU in the target DSO subband that does not overlap with the NPCA main channel.

[0019] The second indication information is used to instruct the NPCA site to access the NPCA via the first NPCA bandwidth, where the first NPCA bandwidth is a portion or all of the bandwidth reserved in the NPCA bandwidth that includes the NPCA main channel;

[0020] The third indication information is used to instruct the site that simultaneously supports NPCA and DSO to respond to the first frame on the overlapping bandwidth of the NPCA bandwidth and the target DSO subband.

[0021] Fourthly, a wireless communication device is provided, comprising:

[0022] The second transceiver module is used to receive the first frame sent by the first access point, which includes at least one of the first indication information, the second indication information, and the third indication information.

[0023] The response module is used to perform corresponding operations based on its own site type and corresponding instruction information. The site type includes at least one of DSO site, NPCA site, and site that supports both NPCA and DSO.

[0024] Wherein, the first indication information is used to instruct the DSO site to switch to the target DSO subband and respond to the first frame on the first resource unit (RU) allocated by the first access point, wherein the first RU is an RU in the target DSO subband that does not overlap with the NPCA main channel; the second indication information is used to instruct the NPCA site to perform NPCA access in the first NPCA bandwidth, wherein the first NPCA bandwidth is part or all of the bandwidth reserved in the NPCA bandwidth that includes the NPCA main channel; and the third indication information is used to instruct the site that simultaneously supports NPCA and DSO to respond to the first frame on the overlapping bandwidth of the NPCA bandwidth and the target DSO subband.

[0025] Fifthly, an access point device is provided, including a processor and a memory. The memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to perform the methods described in the first aspect or its various implementations.

[0026] In a sixth aspect, a site device is provided, including a processor and a memory. The memory is used to store a computer program, and the processor is used to invoke and run the computer program stored in the memory to perform the methods in the second aspect or its implementations described above.

[0027] In a seventh aspect, a chip is provided for implementing the methods of any one of the first to second aspects or their respective implementations. Specifically, the chip includes: a processor for calling and running a computer program from a memory, causing a device on which the chip is installed to perform the methods of any one of the first to second aspects or their respective implementations.

[0028] Eighthly, a readable storage medium is provided for storing a computer program that causes a computer to perform the methods of any one of the first to second aspects or their respective implementations.

[0029] A ninth aspect provides a communication device, comprising: a processor and a memory for storing a computer program, the processor for calling and running the computer program stored in the memory to perform the methods of any one of the first to second aspects or their respective implementations.

[0030] In a tenth aspect, a communication system is provided, including an access point device and a terminal device, wherein the access point device is configured to perform the method of any one of the first aspects or its implementations described above, and the terminal device is configured to perform the method of any one of the second aspects or its implementations described above.

[0031] The above technical solution generates a first frame through a first access point and sends it to a first station. The first frame includes at least one of a first indication information, a second indication information, and a third indication information. The first station can be at least one of a DSO station, an NPCA station, and a station that simultaneously supports NPCA and DSO. The first indication information is used to instruct the DSO station to switch to the target DSO subband and respond to the first frame on the first resource unit (RU) allocated by the first access point. The first RU is an RU in the target DSO subband that does not overlap with the NPCA main channel. The second indication information is used to instruct the NPCA station to perform NPCA access in the first NPCA bandwidth. The first NPCA bandwidth is part or all of the bandwidth reserved in the NPCA bandwidth that includes the NPCA main channel. The third indication information is used to instruct the station that simultaneously supports NPCA and DSO to respond to the first frame on the overlapping bandwidth of the NPCA bandwidth and the target DSO subband. This avoids or reduces resource conflicts between the DSO station and the NPCA station and the station that simultaneously supports NPCA and DSO, and ensures access opportunities for NPCA and DSO operations. At the same time, it improves the utilization rate of spectrum resources, achieving the effect of simultaneously taking into account spectrum interference and utilization rate. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this disclosure or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 This is a schematic diagram of a communication system applicable to embodiments of this application.

[0034] Figure 2 This is a diagram illustrating how the AP and STA switch to the NPA main channel and interact with each other on the NPA main channel.

[0035] Figure 3 This is a schematic diagram of the 160MHz bandwidth main channel and the NPCA main channel.

[0036] Figure 4 This is a schematic diagram showing how the AP sends an ICF via the main channel to instruct the DSO STA to switch to the DSO subband and perform data interaction in the DSO subband.

[0037] Figure 5 This is an interactive schematic diagram of a wireless communication method provided in an embodiment of this application.

[0038] Figure 6This is an interactive schematic diagram of another wireless communication method provided in the embodiments of this application.

[0039] Figure 7 This is a schematic diagram of a spectrum resource provided in an embodiment of this application.

[0040] Figure 8 This is another schematic diagram of spectrum resources provided in the embodiments of this application.

[0041] Figure 9 This is a schematic diagram of the frame structure of the first frame provided in the embodiment of this application.

[0042] Figure 10 This is a schematic diagram of the frame structure of the second frame provided in an embodiment of this application.

[0043] Figure 11(a) is a schematic diagram of the frame structure of a third frame provided in an embodiment of this application.

[0044] Figure 11(b) is a schematic diagram of another third frame structure provided in an embodiment of this application.

[0045] Figure 11(c) is a schematic diagram of another third frame structure provided in the embodiments of this application.

[0046] Figure 12 This is a data interaction diagram of the wireless communication method corresponding to scenario one provided in the embodiments of this application.

[0047] Figure 13 This is a data interaction diagram of the wireless communication method corresponding to Scenario 2 provided in the embodiments of this application.

[0048] Figure 14 This is a schematic block diagram of a wireless communication device provided according to an embodiment of this application.

[0049] Figure 15 This is a schematic block diagram of another wireless communication device provided according to an embodiment of this application.

[0050] Figure 16 This is a schematic block diagram of a communication device provided according to an embodiment of this application.

[0051] Figure 17 This is a schematic block diagram of a chip provided according to an embodiment of this application.

[0052] Figure 18 This is a schematic block diagram of a communication system provided according to an embodiment of this application. Detailed Implementation

[0053] The technical solutions of the embodiments of this application will now be described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art without creative effort regarding the embodiments of this application are within the scope of protection of this application.

[0054] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Furthermore, the terms "first" and "second," etc., used herein are used only to distinguish different objects and not to describe a particular order.

[0055] It should be noted that, in the embodiments of this application, "at least one item" refers to one item or more items, "more items" refers to two items or more, and "at least two items" refers to two items or more. "At least one of the following items" or similar expressions can refer to any combination of these items. For example, at least one item of a, b, or c can mean: a, b, c, "a and b", "a and c", "b and c", or "a and b and c".

[0056] It should be noted that in the embodiments of this application, "and / or" indicates that the connected objects can have three relationships. For example, "A and / or B" can represent three scenarios: only A exists, only B exists, and both A and B exist simultaneously. The character " / " generally indicates that the preceding and following objects have an "or" relationship.

[0057] It should be understood that the "instruction" mentioned in the embodiments of this application can be a direct instruction or an indirect instruction. For example, A instructing B can mean that A directly instructs B, such as B being obtainable through A; or it can mean that A indirectly instructs B, such as A instructing C, where B is obtainable through C, for example, B and C are related.

[0058] The technical solutions provided in this application can be applied to wireless local area network (WLAN) systems, such as WiFi protocols. These WiFi protocols may include, but are not limited to, the 802.11 series protocols, such as 802.11a, 802.11ax, 802.11ac, 802.11b, 802.11be, 802.11g, 802.11n, 802.11bn, or next-generation protocols.

[0059] Figure 1 A schematic structural diagram of a communication system 100 applicable to embodiments of this application is shown. The communication system 100 may include an access point device 110 and a site device 120. The site device 120 can access the network through the access point device 110.

[0060] Access points can support communication or sensing based on WiFi protocols, such as 802.11a, 802.11ax, 802.11ac, 802.11b, 802.11be, 802.11g, 802.11n, 802.11bn, next-generation protocols of 802.11bn, or even later WiFi protocols.

[0061] The site can support communication or sensing based on WiFi protocols, such as 802.11a, 802.11ax, 802.11ac, 802.11b, 802.11be, 802.11g, 802.11n, 802.11bn, next-generation protocols of 802.11bn, or even later WiFi protocols.

[0062] The communication in the communication system 100 can be communication between access points and stations, or communication between stations, or communication between access points.

[0063] An access point acts as a bridge connecting wired and wireless networks. Its main function is to connect various wireless network clients together and then connect the wireless network to the Ethernet.

[0064] A station (STA) includes access point stations (AP STA) and non-access point stations (non-APstation). For simplicity, access point stations are usually referred to as access points (AP), and non-access point stations as stations (STA). Station equipment is also called a station, a non-APSTA, or a non-access point node.

[0065] In some scenarios, access points and sites can be devices used in vehicle networking, 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.

[0066] In some scenarios, the access point can be a terminal device (such as a mobile phone) with a WiFi chip or a network device (such as a router).

[0067] In this application embodiment, the site can 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, vehicle communication device, wireless device in remote medical care, wireless device in smart grid, wireless device in transportation safety, wireless device in smart city or smart home, wireless device, wireless communication chip, etc. that support WLAN or WiFi technology.

[0068] It should be understood that Figure 1 Only one access point and two sites are shown in the example. Optionally, the communication system 100 may include multiple access points or other numbers of sites. This application embodiment does not limit this.

[0069] Optionally, the communication system 100 may also include other devices, such as network controllers, gateways, and other network entities, which are not limited in this application.

[0070] To facilitate understanding of the embodiments of this application, the related technologies are described.

[0071] The NPCA mechanism aims to allow access points and sites to switch to the NPCA primary channel for non-primary channel access and data transmission when the primary channel is busy due to OBSS traffic interference or other preset conditions. This expands the reliance on the primary channel and better utilizes transmission opportunities on idle non-primary channels, thereby improving spectrum utilization. Figure 2As shown in the figure, this diagram illustrates the switching of the AP and STA to the NPCA main channel and their data interaction on the NPCA main channel. In this diagram, after detecting OBSS interference, the AP and STA switch to the NPCA main channel. The AP initiates transmission by sending an ICF (Initial Control Frame) through the NPCA main channel. After the STA receives the ICF and replies with an ICR (Initial Control Response Frame) on the NPCA main channel, the STA performs uplink PPDU (Physical Layer Protocol Data Unit) transmission triggered by the AP on the NPCA main channel.

[0072] exist Figure 2The data interaction process shown includes at least the following NPCA parameter fields: NPCA Primary Channel field, indicating the channel number corresponding to the NPCA AP and its associated NPCA STA switching to perform NPCA operations within the BSS bandwidth. Here, NPCA AP refers to the AP performing the NPCA operation, and NPCA STA refers to the STA performing the NPCA operation; NPCA Minimum Duration Threshold field, indicating the minimum duration of cross-BSS activity indicated on the BSS primary channel. This is a necessary condition for allowing an NPCA STA to switch to the NPCA primary channel to perform NPCA operations. Cross-BSS activity includes cross-BSS PPDU and cross-BSS TXOP (Transmission Opportunity); NPCA Switch Delay field, indicating the time required for an NPCA STA to switch from the BSS primary channel to the NPCA primary channel, in units of 4 microseconds; and NPCA Switch BackDelay field, indicating the NPCA... The time required for the STA to switch from the NPCA main channel back to the BSS main channel, in 4 microseconds; the NPCADisabledSubchannel Bitmap field indicates the subchannels that are punctured when the NPCA STA operates on the NPCA main channel. The NPCADisabledSubchannel Bitmap is a 16-bit bitmap. The lowest-numbered bit corresponds to the lowest-frequency 20MHz subchannel among all 20MHz subchannels within the BSS bandwidth. Each consecutive bit in the bitmap corresponds to the next higher-frequency 20MHz subchannel. In the bitmap, a value of 1 indicates that the corresponding 20MHz subchannel has been punctured, and a value of 0 indicates that the corresponding 20MHz subchannel has not been punctured. For example... Figure 3 As shown, Figure 3 This diagram illustrates the 160MHz bandwidth main channel and NPCA main channel. The BSS main channel is located on channel 1, and the NPCA main channel is located on channel 5. When the NPCA disabled sub-channel bitmap is set to 0x11110000, it indicates that channels 5 to 8, i.e., the auxiliary 80MHz, are used for NPCA transmission.

[0073] The DSO mechanism aims to allow DSO STAs with operating bandwidth narrower than that of the DSO AP to be dynamically allocated frequency resources outside their current operating bandwidth within the DSO AP's BSS bandwidth on a TXOP basis, thereby improving the utilization efficiency of radio resources, system capacity, and user experience. For example... Figure 4 As shown, Figure 4 This diagram illustrates how an AP sends an ICF (Instruction Form) via the main channel to instruct a DSO STA (Distributed SO STA) to switch to the DSO subband and engage in data interaction within it. In this diagram, the AP sends the ICF to instruct the DSO STA to switch to the DSO subband. After receiving the ICF on the main channel, the DSOSTA switches to the DSO subband within the MAC (Media Access Control) padding duration plus the IFC (Intermediate Frame Check Sequence) (if present). It then feeds back the corresponding ICR (Intermediate Frame Check) on its allocated RU (Resource Unit). During the SIFS (Short Inter-Frame Space) period after the ICR feedback ends, it listens to at least one 20MHz subchannel in the DSO subband overlapping with the allocated RU to receive frames or be triggered to transmit frames for data transmission. The MAC padding duration is greater than or equal to the DSO padding delay to ensure that the MAC padding field of the ICF frame reserves sufficient DSO padding delay for DSO switching.

[0074] exist Figure 4 The data interaction process shown involves at least the following DSO parameter fields: Main Subband field, indicating the channel with bandwidth equal to the STA operating bandwidth and containing the BSS; DSO Subband field, indicating the channel with bandwidth equal to the STA operating bandwidth and located outside the main subband but within the BSS bandwidth; DSO Padding Delay field, indicating the time required for the DSO AP to switch from the main subband to the DSO subband; and DSO Switchback Delay field, indicating the time required for the DSO site to switch back from the DSO subband to the main subband. For example, if the DSO AP's operating bandwidth is 160MHz and the DSO STA's operating bandwidth is 80MHz, then the main 80MHz is the main subband bandwidth, and the secondary 80MHz is the DSO subband bandwidth.

[0075] Both NPCA and DSO operations can initiate transmissions using ICF. ICF can use BSRP (Buffer Status Report Poll) frames to respond to ICF, and ICR frames can be Multi-STA (Multi-STA Block Ack) frames. An Intermediate FCS (Intermediate Check Sequence) field, occupying 32 bytes, is added to the ICF frame format to verify the integrity of the data between the MAC header and the FCS field in the frame body.

[0076] In wireless communication scenarios, NPCA and DSO technologies are used in conjunction to improve channel utilization. However, since both the DSO subband and NPCA bandwidth are located outside the main channel, if the AP and STA are out of sync during channel handover (e.g., the AP does not detect the STA switching to the NPCA main channel), the AP may allocate NPCA frequency domain resources to the DSO STA, causing them to compete for resources in overlapping frequency bands. This frequency domain resource conflict is particularly prominent in asymmetric handover scenarios. For example, if a STA automatically switches to the NPCA main channel due to main channel interference, but the AP still schedules the DSO subband based on the main channel state, the NPCA STA may be unable to access the network or experience transmission collisions. This makes it difficult for NPCA and DSO technologies to simultaneously achieve both interference resistance and spectral efficiency due to the lack of coordinated scheduling.

[0077] The technical solutions of this application are described in detail below through specific embodiments. The above-mentioned related technologies are optional solutions and can be combined with the technical solutions of the embodiments of this application in any way, all of which fall within the protection scope of the embodiments of this application.

[0078] Figure 5 This is an interactive schematic diagram of a wireless communication method according to an embodiment of this application. The method is applied to a first access point and includes at least the following:

[0079] S110, Generate a first frame, the first frame including at least one of first indication information, second indication information, and third indication information.

[0080] S120, a first frame is sent to a first site within the first access point basic service set (BSS). The first site includes at least one of the following: a dynamic subband operation (DSO) site, a non-main channel access (NPCA) site, and a site that simultaneously supports NPCA and DSO.

[0081] The first indication information is used to instruct the DSO site to switch to the target DSO subband and respond to the first frame on the first resource unit (RU) allocated by the first access point, wherein the first RU is an RU in the target DSO subband that does not overlap with the NPCA main channel; the second indication information is used to instruct the NPCA site to perform NPCA access in the first NPCA bandwidth, wherein the first NPCA bandwidth is part or all of the bandwidth reserved in the NPCA bandwidth that includes the NPCA main channel; and the third indication information is used to instruct the site that supports both NPCA and DSO to respond to the first frame on the overlapping bandwidth of the NPCA bandwidth and the target DSO subband.

[0082] Correspondingly, such as Figure 6 As shown, in step S210, a first frame sent by the first access point is received, including at least one of first indication information, second indication information, and third indication information.

[0083] S220, the first site performs the corresponding operation according to its own site type and corresponding instruction information. The site type includes at least one of DSO site, NPCA site, and site that supports both NPCA and DSO.

[0084] The first indication information is used to instruct the DSO site to switch to the target DSO subband and respond to the first frame on the first resource unit (RU) allocated by the first access point, wherein the first RU is an RU in the target DSO subband that does not overlap with the NPCA main channel; the second indication information is used to instruct the NPCA site to perform NPCA access in the first NPCA bandwidth, wherein the first NPCA bandwidth is part or all of the bandwidth reserved in the NPCA bandwidth that includes the NPCA main channel; and the third indication information is used to instruct the site that supports both NPCA and DSO to respond to the first frame on the overlapping bandwidth of the NPCA bandwidth and the target DSO subband.

[0085] It is understood that the wireless communication method provided in this application embodiment includes at least the following specific implementation methods:

[0086] In some embodiments, if the first site within the first access point BSS only includes DSO sites, the first frame may only include the first indication information. The first access point selects the target DSO sub-band based on its own operating bandwidth and the DSO main sub-band reported by the first site, instructs the DSO site to switch to the target DSO sub-band through the first indication information, and responds to the first frame on the first RU allocated by the first access point. The first RU is an RU in the target DSO sub-band that does not overlap with the NPA main channel, so as to avoid occupying the NPA main channel resources, thereby avoiding resource conflicts that may occur if an NPA site appears later.

[0087] It should be noted that NPCA bandwidth is a collection of multiple sub-channels that include the NPCA main channel. Figure 7 Let's take an example to illustrate. Figure 7 The AP's operating bandwidth is 160MHz, and the STA's DSO operating bandwidth is 80MHz. If the NPCA disabled sub-channel bitmap is set to 0x11000011, it indicates that the resource set consisting of sub-channels 3 to 6 constitutes the NPCA bandwidth. Among them, sub-channel 5 is the NPCA main channel. Since the DSO sub-band bandwidth of the DSO operation is 80MHz, there is one main sub-band (main 80MHz) and one DSO sub-band bandwidth (secondary 80MHz). This DSO sub-band bandwidth overlaps with the NPCA bandwidth in some sub-bands (i.e., sub-channels 5 and 6). Referring to the previous example, if the first access point is a DSO site and the selected DSO sub-band is... Figure 7If the target DSO subband is selected, the first access point instructs the DSO site to switch to the target DSO subband and simultaneously allocates a first RU to the DSO site. The first RU can be at least one of subchannels 6 to 8 to avoid occupying NPCA main channel resources. In some preferred embodiments, the first RU can be at least one of subchannels 7 and 8 to avoid the DSO site occupying NPCA bandwidth resources.

[0088] In addition Figure 8 illustrate, Figure 8 The AP's operating bandwidth is 320MHz, the STA's DSO operating bandwidth is 80MHz, the NPCA bandwidth is the resource set consisting of subchannels 9-12, the main subband is the resource set consisting of subchannels 1-4, the resource set consisting of subchannels 5-8 is DSO subband 1, the resource set consisting of subchannels 9-12 is DSO subband 2, and the resource set consisting of subchannels 13-16 is DSO subband 3. If the first access point selects the target DSO subband based on its own operating bandwidth and the DSO main subband reported by the first site... Figure 8 If the DSO subband 2 is selected, the first access point instructs the DSO site to switch to the DSO subband 2. At the same time, the first access point allocates a first RU to the DSO site. The first RU can be at least one of subchannel 10, subchannel 11, and subchannel 12, thereby avoiding the occupation of NPCA main channel resources.

[0089] Understandably, if the target DSO subband selected by the first access point is a subband that does not overlap with the NPCA bandwidth, such as Figure 8 As shown, if the selected target DSO subband is DSO subband 1 or DSO subband 3, since DSO subband 1 or DSO subband 3 does not overlap with the NPCA bandwidth, there will be no resource conflict with the NPCA bandwidth. Therefore, the first access point can choose any bandwidth in DSO subband 1 or DSO subband 3 as the first RU. For example, the first RU can be the entire bandwidth of DSO subband 1 or DSO subband 3, or it can be any part of the bandwidth in DSO subband 1 or DSO subband 3.

[0090] It should be noted that the first access point prioritizes selecting a sub-band for the DSO site that does not overlap with the NPCA bandwidth as the target DSO sub-band in order to avoid resource conflicts to the greatest extent.

[0091] It should be understood that DSO subbands overlapping with NPCA bandwidth refer to DSO subbands that overlap with the NPCA main channel. For example: if Figure 8In the bandwidth shown, if the resource set of sub-channel 7 + sub-channel 8 + sub-channel 9 + sub-channel 10 constitutes the NPCA bandwidth, then although DSO sub-band 1 occupies sub-channel 7 and sub-channel 8 in the NPCA bandwidth, DSO sub-band 1 is not a DSO sub-band that overlaps with the NPCA bandwidth. DSO sub-band 2 contains sub-channel 9 that overlaps with the NPCA main channel. Therefore, DSO sub-band 2 is a DSO sub-band that overlaps with the NPCA bandwidth.

[0092] In some embodiments, if the first site within the first access point (BSS) only includes NPCA sites, then the first frame may only include second indication information. The second indication information indicates that the NPCA site performs NPCA access within the first NPCA bandwidth, where the first NPCA bandwidth is a portion or all of the reserved bandwidth within the NPCA bandwidth that includes the NPCA main channel. Combined with... Figure 7 The first NPCA bandwidth can be the entire NPCA bandwidth, or it can be a portion of the bandwidth containing only sub-channels 3 and 4 and the NPCA main channel; combined with Figure 8 The first NPCA bandwidth can include only the NPCA main channel, or it can be the NPCA main channel plus sub-channel 10 and / or sub-channel 11, reserving resources for the target DSO sub-band for potential subsequent DSO sites to avoid or reduce resource conflicts with potential subsequent DSO sites. Of course, the first NPCA bandwidth can also be the entire bandwidth in the NPCA bandwidth to improve the utilization rate of NPCA transmission resources.

[0093] In some embodiments, if the first site within the first access point (BSS) includes only sites that simultaneously support NPCA and DSO, then the first frame may only include third indication information. This third indication information indicates that the sites simultaneously supporting NPCA and DSO respond to the first frame on the overlapping bandwidth of the NPCA bandwidth and the target DSO subband. Combined with... Figure 7 The overlap bandwidth between the NPCA bandwidth and the target DSO subband is NPCA subchannel + subchannel 6. The first access point sends a first frame instructing the site that simultaneously supports NPCA and DSO to respond with the first frame on NPCA subchannel + subchannel 6; combined with Figure 8 The overlap bandwidth between the NPCA bandwidth and the target DSO subband is the NPCA main channel + subchannels 10-12. The first access point sends a first frame to instruct the station that simultaneously supports NPCA and DSO to respond with the first frame on the NPCA main channel + subchannels 10-12. This enables the same station to simultaneously support NPCA and DSO operations, avoiding the need to instruct a station to switch to different channels (e.g., ...). Figure 7 The instruction specifies that the same site should switch to NPCA bandwidth when performing NPCA operations and switch to sub-channel 7 + sub-channel 8 when performing DSO operations, such as... Figure 8The error message indicates that the same site should switch to NPCA bandwidth when performing NPCA operations and switch to DSO subband 1 or 3 when performing DSO operations, which may cause problems with NPCA or DSO operations.

[0094] In some embodiments, if the first site within the first access point (BSS) includes a DSO site and an NPCA site, the first frame includes first indication information and second indication information. The first indication information instructs the DSO site to switch to the target DSO subband and respond to the first frame on the first RU allocated by the first access point. The second indication information instructs the NPCA site to switch to the first NPCA bandwidth. Since the first RU and the first NPCA have at least non-overlapping NPCA main channels, the DSO site and the NPCA site can reduce or eliminate their respective resource usage, thereby reducing or avoiding resource conflicts. For example: combining Figure 7 If a DSO site needs to switch to the target DSO subband, and the first RU allocated by the first access point to this DSO site is subchannel 7 + subchannel 8, then the first NPCA bandwidth can be the entire NPCA bandwidth. If the first RU allocated by the first access point to the DSO site is subchannel 6 + subchannel 7 + subchannel 8, then the first NPCA bandwidth can be a portion of the NPCA bandwidth (i.e., subchannel 3 + subchannel 4 + NPCA main channel). This completely avoids resource conflicts. Of course, the first NPCA bandwidth can also be the entire NPCA bandwidth. In this case, although subchannel 6 is shared, compared to the first RU being all RUs of the target DSO subband, it can reduce interference to NPCA transmission. Combined with... Figure 8 If the first RU allocated by the first access point to the DSO site is sub-channel 10 + sub-channel 11 + sub-channel 12, then the first NPCA bandwidth can be the NPA main channel; if the first RU allocated by the first access point to the DSO site is sub-channel 11 + sub-channel 12, then the first NPCA bandwidth can be the NPA main channel + sub-channel 10; if the first RU allocated by the first access point to the DSO site is sub-channel 12, then the first NPCA bandwidth can be the NPA main channel + sub-channel 10 + sub-channel 11. In some preferred embodiments, the first NPCA bandwidth is the reserved bandwidth within the NPCA bandwidth that includes the NPA main channel and does not overlap with the first RU, that is, the first RU and the reserved first NPCA bandwidth do not overlap, so as to completely avoid resource conflicts and improve NPA access opportunities.

[0095] In some embodiments, if the first site within the first access point (BSS) includes a DSO site and a site that simultaneously supports NPCA and DSO, then the first frame includes first indication information and third indication information. The first indication information instructs the DSO site to switch to the target DSO subband and respond to the first frame on the first RU allocated by the first access point. The third indication information instructs the site that simultaneously supports NPCA and DSO to respond to the first frame on the overlapping bandwidth of the NPCA bandwidth and the target DSO subband. Since there are at least non-overlapping NPCA primary channels between the first RU and the overlapping bandwidth, the DSO site and the site that simultaneously supports NPCA and DSO can reduce or eliminate their resource consumption, thereby reducing or avoiding resource conflicts. Figure 7 If the overlap bandwidth between the NPCA bandwidth and the target DSO subband is NPCA subchannel + subchannel 6, then the first RU allocated by the first access point to the DSO site is subchannel 7 + subchannel 8. This avoids the DSO site occupying NPCA bandwidth resources, meets the needs of sites supporting both NPCA and DSO, and fully utilizes spectrum resources, improving spectrum efficiency. Figure 8 If the overlap bandwidth between the NPCA bandwidth and the target DSO subband is DSO subband 2, then the first access point can allocate a first RU to the DSO site as subchannel 12 or subchannel 11 + subchannel 12. This minimizes channel interference between the DSO site and sites that simultaneously support NPCA and DSO. Alternatively, the overlap bandwidth between the NPCA bandwidth and the target DSO subband can be designed as the NPCA main channel + subchannel 10, and the first access point can allocate a first RU to the DSO site as subchannel 11 + subchannel 12. This completely avoids resource conflicts between the DSO site and sites that simultaneously support NPCA and DSO. In some preferred embodiments, the first RU does not overlap with the overlap bandwidth to completely avoid resource conflicts. It is worth noting that in this embodiment, the overlap bandwidth is the entire overlap bandwidth of the NPCA bandwidth and the target DSO subband, or it can be a partial overlap bandwidth including the NPCA main channel. In some preferred embodiments, the entire overlap bandwidth is allocated to sites that simultaneously support NPCA and DSO to fully meet the transmission resource requirements of sites that simultaneously support NPCA and DSO.

[0096] In some embodiments, if the first site within the first access point BSS includes an NPCA site and a site that simultaneously supports NPCA and DSO, then the first frame includes second indication information and third indication information. The second indication information indicates that the NPCA site performs NPCA access in the first NPCA bandwidth, and the third indication information indicates that the site that simultaneously supports NPCA and DSO responds to the first frame on the overlapping bandwidth of the NPCA bandwidth and the target DSO subband. Since the first NPCA bandwidth and the overlapping bandwidth must both include at least the NPCA main channel, resource interference cannot be avoided. However, this embodiment can achieve simultaneous support for NPCA sites and sites that simultaneously support NPCA and DSO.

[0097] In some embodiments, if the first site within the first access point (BSS) includes a DSO site, an NPCA site, and a site that simultaneously supports NPCA and DSO, then the first frame includes a first indication information, a second indication information, and a third indication information. The first indication information instructs the DSO site to switch to the target DSO subband and respond to the first frame on the first RU allocated by the first access point. The second indication information instructs the NPCA site to perform NPCA access on the first NPCA bandwidth. The third indication information instructs the site that simultaneously supports NPCA and DSO to respond to the first frame on the overlapping bandwidth of the NPCA bandwidth and the target DSO subband. This can avoid or reduce resource conflicts between the DSO site and the NPCA site and the site that simultaneously supports NPCA and DSO, and avoid the problem that NPCA operation cannot access or cannot perform DSO operation, while improving the utilization of spectrum resources.

[0098] by Figure 7 For example, the first access point sends the first frame to instruct the DSO site in the first site to switch to the target DSO subband and allocates the first RU (sub-channel 7 + sub-channel 8) to the DSO site that switches to the target DSO subband. The first frame also instructs the NPA site to access the NPA via the first NPA bandwidth. The first NPA bandwidth can be the entire NPA bandwidth (i.e., sub-channel 3 + sub-channel 4 + NPA main channel + sub-channel 6) or a portion of the NPA bandwidth (such as sub-channel 3 + sub-channel 4 + NPA main channel or sub-channel 4 + NPA main channel). The first frame also instructs the site that supports both NPA and DSO to respond to the first frame on the overlapping bandwidth of the NPA bandwidth and the target DSO subband (NPCA main channel + sub-channel 6), thereby achieving the effect of balancing anti-interference and spectrum utilization.

[0099] It should be noted that the first frame in the aforementioned embodiments can be an ICF, and the response to the first frame can be sending an ICR frame to the first access point.

[0100] The wireless communication method provided in this application embodiment generates a first frame through a first access point and sends the first frame to a first station. The first frame includes at least one of first indication information, second indication information, and third indication information. The first station can be at least one of DSO station, NPCA station, and station that simultaneously supports NPCA and DSO. The first indication information is used to instruct the DSO station to switch to the target DSO subband and respond to the first frame on the first resource unit RU allocated by the first access point. The first RU is an RU in the target DSO subband that does not overlap with the NPCA main channel. The second indication information is used to instruct the NPCA station to perform NPCA access in the first NPCA bandwidth. The first NPCA bandwidth is part or all of the bandwidth reserved in the NPCA bandwidth that includes the NPCA main channel. The third indication information is used to instruct the station that simultaneously supports NPCA and DSO to respond to the first frame on the overlapping bandwidth of the NPCA bandwidth and the target DSO subband. This achieves the goal of avoiding or reducing resource conflicts between DSO station and NPCA station and station that simultaneously supports NPCA and DSO, and ensures access opportunities for NPCA and DSO operations. At the same time, it improves the utilization rate of spectrum resources, achieving the effect of simultaneously taking into account spectrum interference and utilization rate.

[0101] In some embodiments, step S120 includes: sending a first frame via at least one of the main channel and the NPCA main channel.

[0102] Correspondingly, step S210 includes: receiving the first frame through at least one of the main channel and the NPCA main channel.

[0103] If the first site only includes DSO sites, the first access point sends the first frame to the DSO sites through the main channel. If the first site only includes NPCA sites, the first access point sends the first frame to the NPCA sites through the NPCA main channel. If the first site only includes sites that support both NPCA and DSO, or includes at least two of the three site types, the first access point sends the first frame to the first site through the main channel + NPCA main channel to inform all types of first sites of the first frame.

[0104] In some embodiments, the first frame further includes at least:

[0105] The DSO subband quantity indicates the number of DSO subbands in the DSO execution. The NPCA_DSO flag information indicates whether the target DSO subband and NPCA bandwidth overlap. The NPCA main channel indication information indicates that the first NPCA bandwidth needs to be reserved for the NPCA site.

[0106] Figure 9 A schematic diagram of the frame structure of the first frame provided in the embodiments of this application, as shown below. Figure 9As shown, the first frame includes the number of DSO subbands, which informs the first site of the number of DSO subbands present when performing DSO. This is achieved by configuring the DSO subband number field in the first frame, as follows: Figure 7 As shown, there is only one DSO sub-band, and the value of the DSO sub-band quantity field is configured to be 1. Figure 8 As shown, there are 3 DSO sub-bands, and the value of the DSO sub-band quantity field is configured to be 3.

[0107] The first frame also includes NPCA_DSO flag information, used to indicate whether the target DSO subband and NPCA bandwidth are overlapping. This is achieved by configuring the NPCA_DSO flag field in the first frame. For example, configuring the NPCA_DSO flag field to 1 indicates that the target DSO subband and NPCA bandwidth are overlapping, and configuring the NPCA_DSO flag field to 0 indicates that the target DSO subband and NPCA bandwidth are not overlapping. It can be understood that the first AP selects the target DSO subband from all DSO subbands based on its own bandwidth information and the primary subband reported by the first site. Therefore, it is only necessary to indicate whether the target DSO subband overlaps with the NPCA bandwidth. Furthermore, this NPCA_DSO flag information can be carried within... Figure 9 The existing U-signal ignore and validation fields shown enable the reuse of existing fields and can also be carried over to other fields, such as... Figure 9 The newly added NPCA_DSO flag field can be used, or other idle fields can be reused.

[0108] The first frame also includes NPCA main channel indication information, which is used to indicate that the first NPCA bandwidth needs to be reserved for the NPCA site. This is achieved by configuring the NPCA main channel indication field in the first frame. For example, configuring the value of the NPCA main channel indication field to 1 indicates that there is an NPCA operation, reserving the first NPCA bandwidth for the NPCA site, and instructing the NPCA site to access the NPCA via the first NPCA bandwidth.

[0109] In some embodiments, the first frame can be implemented by configuring a special user information field in the ICF.

[0110] In some embodiments, the first frame also includes association identification information to indicate the access method when the NPCA site performs NPCA access. The access method includes UORA (Uplink OFDMA-based Random Access) access and specified access. This is implemented by configuring the AID12 field in the first frame. Specifically, configuring the AID12 field to a value of 0 indicates that the NPCA site accesses NPCA transmission in UORA mode, while configuring the AID12 field to a value other than 1 (e.g., any value from 1 to 2006) indicates that the NPCA site accesses NPCA transmission in a specified mode.

[0111] In some embodiments, prior to step S110, the method further includes:

[0112] A second frame is generated, which carries NPCA bandwidth information and DSO subband bandwidth information. The NPCA bandwidth information is used to indicate the NPCA bandwidth within the BSS bandwidth that allows the first site to perform NPCA operations, and the DSO subband bandwidth information is used to indicate the DSO subband bandwidth that allows the first site to perform DSO.

[0113] The second frame is sent to the first station, the second frame being used to instruct the first station to provide feedback on the station type based on the NPCA bandwidth and the DSO subband bandwidth, the station type including at least one of DSO station, NPCA station, and station that supports both NPCA and DSO.

[0114] The system receives a third frame from the first station, the third frame carrying at least one of NPCA support information and DSO support information; the NPCA support information indicates that the first station supports NPCA operation; the DSO support information indicates that the first station supports DSO operation.

[0115] Correspondingly, before step S210, the method includes: receiving a second frame sent by the first access point, the second frame carrying the NPCA bandwidth information and DSO subband bandwidth information, the NPCA bandwidth information being used to indicate the NPCA bandwidth that allows the first site to perform NPCA operations, and the DSO subband bandwidth information being used to indicate the DSO subband bandwidth that allows the first site to perform DSO.

[0116] A third frame is fed back based on the NPCA bandwidth and the DSO subband bandwidth. The third frame carries at least one of NPCA support information and DSO support information. The NPCA support information indicates that the first site supports NPCA operation, and the DSO support information indicates that the first site supports DSO operation.

[0117] This embodiment is the capability negotiation phase (parameter interaction process) before NPCA and DSO collaborative transmission. In this phase, the first access point first sends a second frame to each first site. The second frame carries NPCA bandwidth information and DSO subband bandwidth information. The NPCA bandwidth information is used to indicate the NPCA bandwidth within the BSS bandwidth that allows the first site to perform NPCA operations. The DSO subband bandwidth information is used to indicate the DSO subband bandwidth that allows the first site to perform DSO operations. That is, the first access point informs each first site of the NPCA bandwidth required to perform NPCA operations and the DSO subband bandwidth required to perform DSO operations. The first site determines whether it can support NPCA operations or DSO operations based on the NPCA bandwidth information and DSO subband bandwidth information, and feeds back the site type to the first access point through a third frame according to the operations it supports.

[0118] It should be noted that when the first site reports its site type to the first access point, it indicates its site type by carrying NPCA support information and / or DSO support information in the third frame. Understandably, if the third frame reported by the first site only carries NPCA support information, it indicates that the first site is an NPCA site that only supports NPCA operations; if the third frame reported by the first site only carries DSO support information, it indicates that the first site is a DSO site that only supports DSO; and if the third frame reported by the first site carries both NPCA support information and DSO support information, it indicates that the first site is a site that supports both NPCA and DSO. The NPCA support information is configured through the NPCA support field in the third frame, and the DSO support information is configured through the DSO support field in the third frame.

[0119] In some embodiments, NPCA bandwidth information is implemented through an NPCA disabled sub-channel bitmap. The NPCA disabled sub-channel bitmap explicitly indicates the punctured main channel when an NPCA STA operates on the NPCA main channel, thereby enabling the first station to determine whether it can switch to the NPCA main channel to perform NPCA operations, and thus determine whether it is an NPCA station.

[0120] In some embodiments, the DSO subband bandwidth information includes minimum DSO subband bandwidth and maximum DSO subband bandwidth, used to indicate the minimum and maximum values ​​of the DSO subband bandwidth required for the DSO site to perform the DSO.

[0121] The first access point indicates the minimum and maximum DSO subband bandwidth required for a DSO site to perform DSO by specifying the minimum and maximum DSO subband bandwidth. Only the first site that meets these DSO subband bandwidth constraints is a DSO site. The minimum and maximum DSO subband bandwidth can be the same, for example, both 80MHz, or they can be different, for example, the minimum is 40MHz and the maximum is 80MHz. Understandably, the DSO subband bandwidth cannot be too small or too large; too small a bandwidth is detrimental to DSO transmission, while too large a bandwidth is a waste of bandwidth resources.

[0122] Specifically, such as Figure 10 As shown, Figure 10 This is a schematic diagram of the frame structure of the second frame provided in an embodiment of this application. The NPCA disabled sub-channel bitmap is implemented by configuring the value of the NPCA disabled sub-channel mapping field in the second frame, for example, in... Figure 7 In the spectrum resources shown, if the value of the NPCA disabled sub-channel mapping field is configured as 0x11000011, it indicates that the resource set of sub-channels 3 to 6 is the NPCA bandwidth. The minimum DSO sub-band bandwidth is achieved by configuring the minimum DSO sub-band bandwidth field in the second frame, and the maximum DSO sub-band bandwidth is achieved by configuring the maximum DSO sub-band bandwidth field in the second frame.

[0123] In some embodiments, as shown in FIG11, the third frame further includes at least one of the following:

[0124] NPCA handover delay is used to indicate the time required for the NPCA site or the site that simultaneously supports NPCA and DSO to switch from the BSS primary channel to the NPCA primary channel.

[0125] NPCA switchback delay is used to indicate the time required for the NPCA site or the site that simultaneously supports NPCA and DSO to switch back to the main channel from the NPCA main channel.

[0126] DSO fill delay is used to indicate the time required for the DSO site or the site that simultaneously supports NPCA and DSO to switch from the main subband to the DSO subband.

[0127] DSO switchback delay is used to indicate the time required for the DSO site or the site that simultaneously supports NPCA and DSO to switch back from the DSO subband to the main subband.

[0128] The target channel switching delay is used to indicate the time it takes for a site that simultaneously supports NPCA and DSO to switch from the primary channel to the target channel when performing NPCA and / or DSO operations.

[0129] The target channel handover delay is used to indicate the time it takes for a site that simultaneously supports NPCA and DSO to switch back to the primary channel when performing NPCA and / or DSO operations, wherein the target channel is the NPCA bandwidth and / or the target DSO subband.

[0130] Figure 11 is a schematic diagram of the frame structure of the third frame provided in the embodiments of this application. There are three frame structures. The first type is the third frame corresponding to the NPCA site, as shown in Figure 11(a). This third frame includes an NPCA support field, an NPCA handover delay field, and an NPCA handover return delay field, which are used to carry NPCA support information, NPCA handover delay, and NPCA handover return delay, respectively. The second type is the third frame corresponding to the DSO site, as shown in Figure 11(b). This third frame includes a DSO support field, a DSO padding delay field, and a DSO handover return delay field, which are used to carry DSO support information, DSO padding delay, and DSO handover return delay, respectively. The third type is the third frame corresponding to a site that simultaneously supports NPCA and DSO, as shown in Figure 11(c). This third frame includes an NPCA support field, a DSO support field, a target channel handover delay field, and a target channel handover return delay field, which are used to carry NPCA support information, DSO support information, target channel handover delay, and target channel handover return delay, respectively. In addition, for sites that support both NPCA and DSO, they can also report NPCA capability parameters and DSO capability parameters separately by sending a third frame containing the NPCA support field, NPCA handover delay field, and NPCA handover back delay field to the first access point, and by sending a third frame containing the DSO support field, DSO padding delay field, and DSO handover back delay field.

[0131] To further understand the implementation scheme of this application, the following are examples of two specific application scenarios:

[0132] Scene 1:

[0133] This scenario involves the access point instructing a site that simultaneously supports NPCA and DSO to respond with the first frame on the overlapping bandwidth of the NPCA bandwidth and the target DSO subband. This avoids resource conflicts during NPCA and DSO operations, improving the access success rate. The corresponding spectrum resources are as follows: Figure 7 As shown.

[0134] Figure 12 This is a data interaction diagram of the wireless communication method corresponding to scenario one provided in the embodiments of this application. Figure 12 In the process, due to interference from UHR STAs on the main channel, the AP sends signals to sites that simultaneously support NPCA and DSO. Figure 12The NPCA STA sends an ICF frame, in which the number of DSO subbands is configured to be 1, indicating that there is only one DSO subband on the corresponding spectrum resource. At the same time, the NPCA_DSO identifier is configured to be 1, indicating that the DSO subband and the NPCA bandwidth are in an overlapping state.

[0135] The NPCA STA receives ICF frames on the NPCA main channel, but because it also supports DSO, it only receives them in the overlapping bandwidth of the NPCA bandwidth and the DSO subband (i.e., Figure 7 The corresponding sub-channel 5 + sub-channel 6 responds with an ICR frame, indicating that data transmission can occur on the overlapping bandwidth. Data transmission requires the AP to send a trigger frame before uplink data can be transmitted. How the NPCA STA transmits NPCA and DSO data on the overlapping bandwidth is not an innovation of this application and is not limited here.

[0136] Scene 2:

[0137] This scenario involves the access point reserving the first NPCA bandwidth for the NPCA STA to perform NPCA operations when instructing the DSO site to perform DSO, thereby avoiding interference between DSO operations and NPCA operations. The corresponding spectrum resources are as follows: Figure 7 As shown.

[0138] Figure 13 This is a data interaction diagram of the wireless communication method corresponding to scenario two provided in the embodiments of this application. Figure 13 If the AP does not find a site that simultaneously supports both NPCA and DSO during the capability negotiation phase, the AP sends an ICF frame to allocate frequency domain resources to each site. Specifically, UHR STA3 is allocated a resource element in the primary 40MHz band (sub-channel 1 + sub-channel 2), DSOSTA2 switches to the DSO subband, and DSO STA2 is allocated a resource element containing sub-channels 7 and 8 in the DSO subband. Simultaneously, NPCA bandwidth (sub-channels 3 to 6) is reserved for NPCA STA1 for NPCA operation. At this time, NPCA STA1, DSOSTA2, and UHR STA3 share 160MHz of channel resources for data transmission. This not only resolves the resource contention issue between different sites but also guarantees the access opportunity for NPCA STAs and improves spectrum utilization.

[0139] In the special user information field of the ICF frame, the NPCA main channel indication field is configured to 1, indicating that there is an NPCA site performing NPCA operation and that NPCA bandwidth resources need to be reserved for the NPCA site; the value of the associated identifier field is configured to 0, indicating that the NPCA site performs NPCA access in the UORA mode, and if it is configured to other values, it indicates that the NPCA site performs NPCA access in the specified mode.

[0140] The above text combined Figures 1 to 13 The method embodiments of this application are described in detail below, in conjunction with... Figures 14 to 17 The present application describes the device embodiments in detail. It should be understood that the device embodiments correspond to the method embodiments, and similar descriptions can be referred to the method embodiments.

[0141] Figure 14 A schematic block diagram of a wireless communication device 200 according to an embodiment of this application is shown. The wireless communication device 200 may be an access point device, or a component within an access point device, such as a chip, circuit, or module. Figure 14 The wireless communication device 200 includes:

[0142] The generation module 210 is used to generate a first frame, the first frame including at least one of first indication information, second indication information, and third indication information. The first transceiver module 220 is used to send the first frame to a first site within the first access point basic service set (BSS), the first site including at least one of dynamic subband operation (DSO) sites, non-primary channel access (NPCA) sites, and sites that simultaneously support NPCA and DSO.

[0143] Wherein, the first indication information is used to instruct the DSO site to switch to the target DSO subband and respond to the first frame on the first resource unit (RU) allocated by the first access point, wherein the first RU is an RU in the target DSO subband that does not overlap with the NPCA main channel; the second indication information is used to instruct the NPCA site to perform NPCA access in the first NPCA bandwidth, wherein the first NPCA bandwidth is part or all of the bandwidth reserved in the NPCA bandwidth that includes the NPCA main channel; the third indication information is used to instruct the site that simultaneously supports NPCA and DSO to respond to the first frame on the overlapping bandwidth of the NPCA bandwidth and the target DSO subband.

[0144] The wireless communication device provided in this embodiment generates a first frame through a first access point and sends the first frame to a first station. The first frame includes at least one of a first indication information, a second indication information, and a third indication information. The first station can be at least one of a DSO station, an NPCA station, and a station that simultaneously supports NPCA and DSO. The first indication information is used to instruct the DSO station to switch to the target DSO subband and respond to the first frame on the first resource unit RU allocated by the first access point. The first RU is an RU in the target DSO subband that does not overlap with the NPCA main channel. The second indication information is used to instruct the NPCA station to perform NPCA access in the first NPCA bandwidth. The first NPCA bandwidth is part or all of the bandwidth reserved in the NPCA bandwidth that includes the NPCA main channel. The third indication information is used to instruct the station that simultaneously supports NPCA and DSO to respond to the first frame on the overlapping bandwidth of the NPCA bandwidth and the target DSO subband. This achieves the goal of avoiding or reducing resource conflicts between the DSO station and the NPCA station and the station that simultaneously supports NPCA and DSO, and ensures access opportunities for NPCA and DSO operations. At the same time, it improves the utilization rate of spectrum resources, achieving the effect of simultaneously taking into account spectrum interference and utilization rate.

[0145] In some embodiments, the wireless communication device 200 further includes:

[0146] The second frame generation module is used to generate a second frame, which carries NPCA bandwidth information and DSO subband bandwidth information. The NPCA bandwidth information is used to indicate the NPCA bandwidth within the BSS bandwidth that allows the first site to perform NPCA operations, and the DSO subband bandwidth information is used to indicate the DSO subband bandwidth that allows the first site to perform DSO.

[0147] The third transceiver module is used to send the second frame to the first station. The second frame is used to instruct the first station to provide feedback on the station type based on the NPCA bandwidth and the DSO subband bandwidth. The station type includes at least one of DSO station, NPCA station, and station that supports both NPCA and DSO.

[0148] In some embodiments, the wireless communication device 200 further includes:

[0149] The fourth transceiver module is used to receive a third frame fed back by the first station, wherein the third frame carries at least one of NPCA support information and DSO support information. The NPCA support information indicates that the first station supports NPCA operation; the DSO support information indicates that the first station supports DSO operation.

[0150] In some embodiments, the first transceiver module is further configured to transmit the first frame via at least one of the main channel and the NPCA main channel.

[0151] It should be understood that the apparatus 200 according to the embodiments of this application may correspond to the first access point in the method embodiments of this application, and the various units in the apparatus 200 and the other operations and / or functions described above are respectively for implementing Figures 5 to 13 The corresponding processes applied to the first access point in the embodiments described herein will not be repeated here for the sake of brevity.

[0152] Figure 15 This is a schematic block diagram of another wireless communication device 300 provided according to an embodiment of this application. The XXX device 300 can be a site device, or a component within a site device, such as a chip, circuit, or module.

[0153] like Figure 15 As shown, the wireless communication device 300 includes:

[0154] The second transceiver module 310 is used to receive a first frame sent by the first access point, which includes at least one of first indication information, second indication information, and third indication information. The response module 320 is used to perform corresponding operations according to its own site type and corresponding indication information. The site type includes at least one of DSO site, NPCA site, and site that simultaneously supports NPCA and DSO. Specifically, the first indication information is used to instruct the DSO site to switch to the target DSO subband and respond to the first frame on the first resource unit (RU) allocated by the first access point. The first RU is an RU in the target DSO subband that does not overlap with the NPCA main channel. The second indication information is used to instruct the NPCA site to perform NPCA access in the first NPCA bandwidth. The first NPCA bandwidth is part or all of the bandwidth reserved in the NPCA bandwidth that includes the NPCA main channel. The third indication information is used to instruct the site that simultaneously supports NPCA and DSO to respond to the first frame on the overlapping bandwidth of the NPCA bandwidth and the target DSO subband.

[0155] The wireless communication device provided in this embodiment receives a first frame sent by a first access point. The first frame includes at least one of first indication information, second indication information, and third indication information. Different types of first stations perform corresponding operations according to their own station type and corresponding indication information. The first station can be at least one of DSO station, NPCA station, and station that simultaneously supports NPCA and DSO. The first indication information is used to instruct the DSO station to switch to the target DSO subband and respond to the first frame on the first resource unit (RU) allocated by the first access point. The first RU is a subband of the target DSO that is not associated with the NPCA main signal. The second indication information is used to instruct the NPA site to access the NPA in the first NPA bandwidth, which is part or all of the bandwidth reserved in the NPA bandwidth that includes the NPA main channel. The third indication information is used to instruct the site that supports both NPA and DSO to respond to the first frame on the overlapping bandwidth of the NPA bandwidth and the target DSO subband. This avoids or reduces resource conflicts between DSO sites and NPA sites and sites that support both NPA and DSO, and ensures access opportunities for both NPA and DSO. At the same time, it improves the utilization rate of spectrum resources, achieving the effect of balancing spectrum interference and utilization.

[0156] It should be understood that the apparatus 300 according to the embodiments of this application may correspond to the first station in the method embodiments of this application, and the various units in the apparatus 300 and the other operations and / or functions described above are respectively for implementing Figures 5 to 13 The corresponding process of the first station in the method embodiment shown will not be described in detail here for the sake of simplicity.

[0157] This application provides an access point device, characterized in that it includes: a processor and a memory, the memory being used to store a computer program, and the processor being used to call and run the computer program stored in the memory to implement the method applied to a first access point in this application embodiment.

[0158] This application provides a site device, characterized in that it includes: a processor and a memory, the memory being used to store a computer program, and the processor being used to call and run the computer program stored in the memory to implement the method applied to a first site in this application embodiment.

[0159] Figure 16 This is a schematic structural diagram of a communication device 500 provided in an embodiment of this application. Figure 16 The communication device 500 shown includes a processor 510, which can call and run computer programs from memory to implement the methods in the embodiments of this application.

[0160] Optionally, such as Figure 16 As shown, the communication device 500 may further include a memory 520. The processor 510 can call and run a computer program from the memory 520 to implement the methods in the embodiments of this application. For example, when the communication device 500 is an access point device, the processor 510 can call and run a computer program from the memory 520 to implement the various steps of the method embodiment executed by the first access point, achieving the same technical effect. When the communication device 500 is a terminal device, the processor 510 can call and run a computer program from the memory 520 to implement the various steps of the method embodiment executed by the first site, achieving the same technical effect.

[0161] Alternatively, the memory 520 may be a separate device independent of the processor 510, or it may be integrated into the processor 510.

[0162] Optionally, such as Figure 16 As shown, the communication device 500 may also include a transceiver 530, and the processor 510 may control the transceiver 530 to communicate with other devices. Specifically, it may send information or data to other devices or receive information or data sent by other devices.

[0163] Optionally, transceiver 530 may include a transmitter and a receiver. Transceiver 530 may further include antennas, and the number of antennas may be one or more.

[0164] Figure 17 This is a schematic structural diagram of the chip according to an embodiment of this application. Figure 17 The chip 600 shown includes a processor 610, which can call and run computer programs from memory to implement the methods in the embodiments of this application.

[0165] Optionally, such as Figure 17 As shown, chip 600 may further include memory 620. Processor 610 can retrieve and run computer programs from memory 620 to implement the methods described in this embodiment.

[0166] Alternatively, the memory 620 may be a separate device independent of the processor 610, or it may be integrated into the processor 610.

[0167] Optionally, the chip 600 may also include an input interface 630. The processor 610 can control the input interface 630 to communicate with other devices or chips, for example, to acquire information or data sent by other devices or chips.

[0168] Optionally, the chip 600 may also include an output interface 640. The processor 610 can control the output interface 640 to communicate with other devices or chips, for example, to output information or data to other devices or chips.

[0169] Optionally, the input interface 630 and the output interface 640 can be configured together.

[0170] Optionally, the chip can be applied to the access point device in the embodiments of this application, and the chip can implement the corresponding process of the first access point in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0171] Optionally, the chip can be applied to the site device in the embodiments of this application, and the chip can implement the corresponding processes implemented by the first site in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0172] It should be understood that the chip mentioned in the embodiments of this application may also be referred to as a system-on-a-chip, system chip, chip system, or system-on-a-chip, etc.

[0173] Figure 18 This is a schematic block diagram of a communication system 700 provided in an embodiment of this application. Figure 18 As shown, the communication system 700 includes an access point device 710 and a site device 720.

[0174] The access point device 710 can be used to implement the corresponding functions implemented by the first access point in the above method, and the site device 720 can be used to implement the corresponding functions implemented by the first site in the above method. For the sake of brevity, these will not be elaborated here.

[0175] It should be understood that the processor in the embodiments of this application may be an integrated circuit chip with signal processing capabilities. In implementation, the steps of the above method embodiments can be completed by integrated logic circuits in the processor's hardware or by instructions in software form. The processor described above may be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. It can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of this application. The general-purpose processor may be a microprocessor or any conventional processor. The steps of the methods disclosed in the embodiments of this application can be directly embodied in the execution of a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software modules may reside in random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, or other mature storage media in the art. The storage medium is located in the memory, and the processor reads the information in the memory and, in conjunction with its hardware, completes the steps of the above method.

[0176] It is understood that the memory in the embodiments of this application can be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory. The non-volatile memory can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. The volatile memory can be random access memory (RAM), which is used as an external cache. By way of example, but not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDR SDRAM), Enhanced Synchronous DRAM (ESDRAM), Synchlink DRAM (SLDRAM), and Direct Rambus RAM (DRRAM). It should be noted that the memory used in the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0177] It should be understood that the above-described memory is exemplary and not a limiting description. For example, the memory in the embodiments of this 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 (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct memory bus RAM (DR RAM), etc. That is to say, the memory in the embodiments of this application is intended to include, but is not limited to, these and any other suitable types of memory.

[0178] This application also provides a readable storage medium storing a computer program that, when executed by a processor, implements the various processes of the above-described method embodiments.

[0179] Optionally, the readable storage medium can be applied to the access point device in the embodiments of this application, and the computer program causes the processor to execute the corresponding process implemented by the first access point in the method embodiments of this application. To avoid repetition, it will not be described again here.

[0180] Optionally, the readable storage medium can be applied to the site device in the embodiments of this application, and the computer program causes the processor to execute the corresponding process implemented by the first site in the method embodiments of this application. To avoid repetition, it will not be described again here.

[0181] This application also provides a computer program product, including a computer program that, when executed by a processor, implements the various processes of the above-described method embodiments.

[0182] Optionally, the computer program product can be applied to the access point device in the embodiments of this application, and the computer program causes the processor to execute the corresponding process implemented by the first access point in the method embodiments of this application. To avoid repetition, it will not be described again here.

[0183] Optionally, the computer program product can be applied to the site device in the embodiments of this application, and the computer program causes the processor to execute the corresponding process implemented by the first site in the method embodiments of this application. To avoid repetition, it will not be described again here.

[0184] This application also provides a computer program. When executed by a processor, this computer program implements the various processes of the above-described method embodiments.

[0185] Optionally, the computer program can be applied to the access point device in the embodiments of this application. The computer program causes the processor to execute the corresponding process implemented by the first access point in the method embodiments of this application. To avoid repetition, it will not be described again here.

[0186] Optionally, the computer program can be applied to the site device in the embodiments of this application. The computer program causes the processor to execute the corresponding process implemented by the first site in the method embodiments of this application. To avoid repetition, it will not be described again here.

[0187] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0188] Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0189] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0190] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0191] In addition, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0192] If the aforementioned functions are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes: USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, optical disks, and other media capable of storing program code.

[0193] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A wireless communication method, characterized in that, Applied to a first access point, the method includes: A first frame is generated, the first frame including at least one of first indication information, second indication information, and third indication information; The first frame is sent to a first site within the first access point basic service set (BSS), the first site including at least one of a dynamic subband operation (DSO) site, a non-primary channel access (NPCA) site, and a site that simultaneously supports NPCA and DSO. The first indication information is used to instruct the DSO site to switch to the target DSO subband and respond to the first frame on the first resource unit (RU) allocated by the first access point. The first RU is an RU in the target DSO subband that does not overlap with the NPCA main channel. The second indication information is used to instruct the NPCA site to access the NPCA via the first NPCA bandwidth, where the first NPCA bandwidth is a portion or all of the bandwidth reserved in the NPCA bandwidth that includes the NPCA main channel; The third indication information is used to instruct the site that simultaneously supports NPCA and DSO to respond to the first frame on the overlapping bandwidth of the NPCA bandwidth and the target DSO subband.

2. The method according to claim 1, characterized in that, The first frame also includes at least one of the following: DSO Subband Count, used to indicate the number of DSO subbands in the execution of a DSO; The NPCA_DSO flag information is used to indicate whether the target DSO subband and the NPCA bandwidth are in an overlapping state. NPCA main channel indication information is used to indicate that the first NPCA bandwidth needs to be reserved for the NPCA site.

3. The method according to claim 1 or 2, wherein sending the first frame to the first site within the first access point basic service set (BSS) comprises: The first frame is transmitted via the main channel or at least one of the NPCA main channels.

4. The method according to any one of claims 1-3, characterized in that: If the target DSO subband is a subband located within the BSS bandwidth and does not overlap with the NPCA bandwidth, the first RU is any bandwidth within the target DSO subband; If the target DSO subband is a subband located within the BSS bandwidth and overlaps with the NPCA bandwidth, the first RU has a bandwidth that does not overlap with the first NPCA bandwidth, and / or the first RU has a bandwidth that does not overlap with the overlapping bandwidth of the NPCA bandwidth and the target DSO subband.

5. The method according to any one of claims 1-4, characterized in that, Before generating the first frame, the process also includes: A second frame is generated, which carries NPCA bandwidth information and DSO subband bandwidth information. The NPCA bandwidth information is used to indicate the NPCA bandwidth within the BSS bandwidth that allows the first site to perform NPCA operations, and the DSO subband bandwidth information is used to indicate the DSO subband bandwidth that allows the first site to perform DSO. The second frame is sent to the first station, the second frame being used to instruct the first station to provide feedback on the station type based on the NPCA bandwidth and the DSO subband bandwidth, the station type including at least one of DSO station, NPCA station, and station that supports both NPCA and DSO.

6. The method according to claim 5, characterized in that, The DSO subband bandwidth information includes minimum DSO subband bandwidth and maximum DSO subband bandwidth, which are used to indicate the minimum and maximum values ​​of the DSO subband bandwidth required for the DSO site to perform the DSO. The NPCA bandwidth information is implemented through the NPCA disabled sub-channel bitmap.

7. The method according to any one of claims 5-6, characterized in that, After sending the second frame to the first station, the method further includes: Receive a third frame fed back from the first station, wherein the third frame carries at least one of NPCA support information and DSO support information; The NPCA support information is used to indicate that the first site supports NPCA operations; The DSO support information is used to indicate that the first site supports DSO operations.

8. The method according to claim 7, characterized in that, The third frame also includes at least one of the following: NPCA handover delay is used to indicate the time required for the NPCA site or the site that simultaneously supports NPCA and DSO to switch from the BSS main channel to the NPCA main channel; NPCA handover delay is used to indicate the time required for the NPCA site or the site that simultaneously supports NPCA and DSO to hand back to the main channel from the NPCA main channel; DSO fill delay is used to indicate the time required for the DSO site or the site that simultaneously supports NPCA and DSO to switch from the main subband to the DSO subband. DSO switchback delay is used to indicate the time required for the DSO site or the site that simultaneously supports NPCA and DSO to switch back from the DSO subband to the main subband; Target channel switching delay is used to indicate the time it takes for a site that simultaneously supports NPCA and DSO to switch from the primary channel to the target channel when performing NPCA and / or DSO operations. The target channel handover delay is used to indicate the time it takes for a site that simultaneously supports NPCA and DSO to switch back to the primary channel when performing NPCA and / or DSO operations, wherein the target channel is the NPCA bandwidth and / or the target DSO subband.

9. A wireless communication method, characterized in that, Applied to the first site, the method includes: The system receives a first frame sent by a first access point, which includes at least one of a first indication information, a second indication information, and a third indication information. The first indication information instructs the DSO site to switch to a target DSO subband and respond to the first frame on a first resource unit (RU) allocated by the first access point. The first RU is an RU in the target DSO subband that does not overlap with the NPA main channel. The second indication information instructs the NPA site to perform NPA access on a first NPA bandwidth. The first NPA bandwidth is a portion or all of the bandwidth reserved in the NPA bandwidth that includes the NPA main channel. The third indication information instructs a site that simultaneously supports both NPA and DSO to respond to the first frame on the overlapping bandwidth of the NPA bandwidth and the target DSO subband. The first site performs corresponding operations based on its own site type and corresponding instruction information. The site type includes at least one of DSO site, NPCA site, and site that supports both NPCA and DSO.

10. The method according to claim 9, characterized in that, The first frame includes at least one of the following: DSO Subband Count indicates the number of DSO subbands in the execution of a DSO. The NPCA_DSO flag information is used to indicate whether the target DSO subband and the NPCA bandwidth are in an overlapping state. NPCA main channel indication information is used to indicate that the first NPCA bandwidth needs to be reserved for the NPCA site.

11. The method according to claim 9 or 10, characterized in that, The receiving of the first frame sent by the first access point includes: The first frame is received via the main channel or at least one of the NPCA main channels.

12. The method according to any one of claims 9-11, characterized in that, Before receiving the first frame sent by the first access point, the process includes: The system receives a second frame sent by the first access point. The second frame carries the NPCA bandwidth information and DSO subband bandwidth information. The NPCA bandwidth information is used to indicate the NPCA bandwidth that allows the first site to perform NPCA operations. The DSO subband bandwidth information is used to indicate the DSO subband bandwidth that allows the first site to perform DSO operations. A third frame is fed back based on the NPCA bandwidth and the DSO subband bandwidth. The third frame carries at least one of NPCA support information and DSO support information. The NPCA support information indicates that the first site supports NPCA operation, and the DSO support information indicates that the first site supports DSO operation.

13. The method according to claim 12, characterized in that, The DSO subband bandwidth information includes minimum DSO subband bandwidth and maximum DSO subband bandwidth, which are used to indicate the minimum and maximum values ​​of the DSO subband bandwidth required for the DSO site to perform the DSO. The NPCA bandwidth information is implemented through the NPCA disabled sub-channel bitmap.

14. The method according to claim 12 or 13, characterized in that, The third frame also includes at least one of the following: NPCA handover delay is used to indicate the time required for the NPCA site or the site that simultaneously supports NPCA and DSO to switch from the BSS main channel to the NPCA main channel; NPCA handover delay is used to indicate the time required for the NPCA site or the site that simultaneously supports NPCA and DSO to hand back to the main channel from the NPCA main channel; DSO fill delay is used to indicate the time required for the DSO site or the site that simultaneously supports NPCA and DSO to switch from the main subband to the DSO subband. DSO switchback delay is used to indicate the time required for the DSO site or the site that simultaneously supports NPCA and DSO to switch back from the DSO subband to the main subband; Target channel switching delay is used to indicate the time it takes for a site that simultaneously supports NPCA and DSO to switch from the primary channel to the target channel when performing NPCA and / or DSO operations. The target channel handover delay is used to indicate the time it takes for a site that simultaneously supports NPCA and DSO to switch back to the primary channel when performing NPCA and / or DSO operations, wherein the target channel is the NPCA bandwidth and / or the target DSO subband.

15. A wireless communication device, characterized in that, include: A generation module is used to generate a first frame, wherein the first frame includes at least one of first indication information, second indication information, and third indication information; The first transceiver module is used to send the first frame to a first site within the first access point basic service set (BSS). The first site includes at least one of the following: a dynamic subband operation (DSO) site, a non-main channel access (NPCA) site, and a site that simultaneously supports NPCA and DSO. The first indication information is used to instruct the DSO site to switch to the target DSO subband and respond to the first frame on the first resource unit (RU) allocated by the first access point. The first RU is an RU in the target DSO subband that does not overlap with the NPCA main channel. The second indication information is used to instruct the NPCA site to access the NPCA via the first NPCA bandwidth, where the first NPCA bandwidth is a portion or all of the bandwidth reserved in the NPCA bandwidth that includes the NPCA main channel; The third indication information is used to instruct the site that simultaneously supports NPCA and DSO to respond to the first frame on the overlapping bandwidth of the NPCA bandwidth and the target DSO subband.

16. A wireless communication device, characterized in that, include: The second transceiver module is used to receive the first frame sent by the first access point, which includes at least one of the first indication information, the second indication information, and the third indication information. The response module is used to perform corresponding operations based on its own site type and corresponding instruction information. The site type includes at least one of DSO site, NPCA site, and site that supports both NPCA and DSO. Wherein, the first indication information is used to instruct the DSO site to switch to the target DSO subband and respond to the first frame on the first resource unit (RU) allocated by the first access point, wherein the first RU is an RU in the target DSO subband that does not overlap with the NPCA main channel; the second indication information is used to instruct the NPCA site to perform NPCA access in the first NPCA bandwidth, wherein the first NPCA bandwidth is part or all of the bandwidth reserved in the NPCA bandwidth that includes the NPCA main channel; and the third indication information is used to instruct the site that simultaneously supports NPCA and DSO to respond to the first frame on the overlapping bandwidth of the NPCA bandwidth and the target DSO subband.

17. An access point device, characterized in that, include: A processor and a memory for storing a computer program, the processor for calling and running the computer program stored in the memory to perform the method as described in any one of claims 1-8.

18. A site device, characterized in that, include: A processor and a memory for storing a computer program, the processor for calling and running the computer program stored in the memory to perform the method as described in any one of claims 9-14.

19. A chip, characterized in that, include: A processor for retrieving and running a computer program from memory, causing a device on which the chip is mounted to perform the method as claimed in any one of claims 1-8, or the method as claimed in any one of claims 9-14.

20. A readable storage medium, characterized in that, Used to store a computer program that causes a computer to perform the method as claimed in any one of claims 1-8, or the method as claimed in any one of claims 9-14.

21. A communication system, characterized in that, It includes an access point device and a site device, the access point device being used to perform the method as described in any one of claims 1-8, and the site device being used to perform the method as described in any one of claims 9-14.

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