Communication method, communication device and communication system

Abstract

The embodiment of the invention relates to a communication method, communication equipment and a communication system. The communication method comprises the following steps: an AP determines a first wireless frame; the first wireless frame indicates at least one station device STA to be switched from a first channel to a corresponding second channel; wherein the bandwidth of the first channel is an operation bandwidth DBE BW after the AP is expanded in a dynamic bandwidth expansion DBE mode; the second channel is a channel resource in the DBE BW; and sending the first wireless frame, thereby improving the use efficiency of spectrum resources and the system throughput, and enhancing the scheduling flexibility in a multi-device scene.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of communication, and particularly relates to a communication method, a communication device and a communication system. BACKGROUND

[0002] In the related art, the content researched by Wi-Fi technology, such as Ultra High Reliability (UHR), has a vision of improving the reliability of Wireless Local Area Networks (WLAN) connection, reducing delay, improving manageability, increasing throughput at different Signal to Noise Ratio (SNR) levels and reducing device-level power consumption, etc.

[0003] In UHR, it is necessary to further standardize the operation process in the operation mode of Dynamic Band Expansion (DBE) to improve the spectrum utilization. SUMMARY

[0004] The embodiments of the present disclosure provide a communication method, a communication device and a communication system to improve the spectrum utilization.

[0005] In one aspect, the embodiments of the present disclosure provide a communication method applied to an AP, and the method comprises:

[0006] determining a first wireless frame; the first wireless frame indicates that at least one station device STA switches from a first channel to a corresponding second channel;

[0007] wherein the bandwidth of the first channel is an operation bandwidth DBE BW expanded by the AP in a dynamic band expansion DBE mode; and the second channel is a channel resource in the DBE BW.

[0008] sending the first wireless frame.

[0009] In another aspect, the embodiments of the present disclosure also provide a communication method applied to a STA, and the method comprises:

[0010] receiving a first wireless frame sent by an AP; the first wireless frame indicates that at least one STA switches from a first channel to a corresponding second channel;

[0011] wherein the bandwidth of the first channel is an operation bandwidth DBE BW expanded by the AP in a DBE mode; and the second channel is a channel resource in the DBE BW.

[0012] In another aspect, the embodiments of the present disclosure also provide a communication device, which is an AP, and the AP comprises:

[0013] determining a first wireless frame; the first wireless frame indicating at least one station device STA to switch from a first channel to a corresponding second channel;

[0014] wherein a bandwidth of the first channel is a dynamic bandwidth extension, DBE, bandwidth, DBE BW, of the AP in a DBE mode; and the second channel is a channel resource within the DBE BW.

[0015] sending the first wireless frame.

[0016] In another aspect, the embodiments of the present disclosure also provide a communication device, which is an AP, comprising:

[0017] receiving a first wireless frame sent by an AP; the first wireless frame indicating at least one station device STA to switch from a first channel to a corresponding second channel;

[0018] wherein a bandwidth of the first channel is a dynamic bandwidth extension, DBE, bandwidth, DBE BW, of the AP in a DBE mode; and the second channel is a channel resource within the DBE BW.

[0019] In another aspect, the embodiments of the present disclosure also provide a communication device, which is an AP, comprising:

[0020] one or more processors;

[0021] wherein the AP is configured to perform the communication method as described in the embodiments of the present disclosure.

[0022] In another aspect, the embodiments of the present disclosure also provide a communication device, which is an STA, comprising:

[0023] one or more processors;

[0024] wherein the STA is configured to perform the communication method as described in the embodiments of the present disclosure.

[0025] The embodiments of the present disclosure also provide a communication system comprising an AP and an STA;

[0026] wherein the AP is configured to determine a first wireless frame; the first wireless frame indicating at least one station device STA to switch from a first channel to a corresponding second channel; wherein a bandwidth of the first channel is a dynamic bandwidth extension, DBE, bandwidth, DBE BW, of the AP in a DBE mode; and the second channel is a channel resource within the DBE BW; and send the first wireless frame;

[0027] the STA is configured to receive a first wireless frame sent by an AP.

[0028] This disclosure also provides a storage medium storing instructions that, when executed on a communication device, cause the communication device to perform the communication method as described in this disclosure.

[0029] In this embodiment of the disclosure, the AP determines a first radio frame; the first radio frame instructs at least one site device (STA) to switch from a first channel to a corresponding second channel; wherein, the bandwidth of the first channel is the operating bandwidth DBE BW of the AP after expansion in the Dynamic Bandwidth Extension (DBE) mode; the second channel is the channel resource within the DBE BW; sending the first radio frame improves the efficiency of spectrum resource utilization and system throughput, and enhances the scheduling flexibility in multi-device scenarios.

[0030] Additional aspects and advantages of embodiments of this disclosure will be set forth in part in the description which follows, and will become apparent from the description or may be learned by practice of this disclosure. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings required for the description of the embodiments are introduced below. The following drawings are only some embodiments of this disclosure and do not impose specific limitations on the protection scope of this disclosure.

[0032] Figure 1 This is an exemplary schematic diagram of the architecture of a communication system provided according to an embodiment of the present disclosure;

[0033] Figure 2 This is one of the exemplary interaction diagrams of the method provided according to embodiments of this disclosure;

[0034] Figure 3 This is a schematic diagram of the operating bandwidth provided according to an embodiment of the present disclosure;

[0035] Figure 4 This is a second exemplary interaction diagram illustrating the method provided according to embodiments of this disclosure;

[0036] Figure 5 This is a third exemplary interaction diagram illustrating the method provided according to embodiments of this disclosure;

[0037] Figure 6 One of the flowcharts of the communication method provided in this disclosure embodiment;

[0038] Figure 7 A second schematic flowchart illustrating the communication method provided in this embodiment of the disclosure;

[0039] Figure 8 This is a schematic diagram of the structure of the AP proposed in the embodiments of this disclosure;

[0040] Figure 9 This is a schematic diagram of the structure of the STA proposed in the embodiments of this disclosure;

[0041] Figure 10 This is a schematic diagram of the structure of the terminal proposed in the embodiments of this disclosure;

[0042] Figure 11 This is a schematic diagram of the chip structure proposed in an embodiment of this disclosure. Detailed Implementation

[0043] This disclosure presents a communication method, communication device, and communication system.

[0044] In a first aspect, embodiments of this disclosure provide a communication method applied to an access point (AP), the method comprising:

[0045] A first radio frame is determined; the first radio frame instructs at least one site device (STA) to switch from a first channel to a corresponding second channel;

[0046] Wherein, the bandwidth of the first channel is the operating bandwidth DBE BW of the AP after expansion in the Dynamic Bandwidth Extension (DBE) mode; the second channel is the channel resource within the DBE BW;

[0047] Send the first wireless frame.

[0048] In the above embodiments, at least one STA in DBE mode is instructed to switch from the first channel to the corresponding second channel by the first radio frame, thereby improving the signaling interaction process in DBE mode and increasing spectrum utilization.

[0049] In conjunction with some embodiments of the first aspect, in some embodiments, the first radio frame includes first identification information; wherein the first identification information identifies a second channel corresponding to each of the STAs;

[0050] The second channel includes at least one 20MHz sub-channel, or the second channel is a resource unit (RU) within the DBE BW, wherein the RU is identified by using the 20MHz primary channel within the basic service set (BSS) where the AP is located as a reference channel.

[0051] In the above embodiments, by indicating the corresponding second channel for each STA, more flexible channel scheduling and interference isolation between STAs are achieved, thereby improving channel utilization efficiency.

[0052] In conjunction with some embodiments of the first aspect, in some embodiments, the first wireless frame further includes: second identification information;

[0053] Wherein, the second identification information identifies: the third channel through which the AP receives the second wireless frame sent by the STA; wherein, the second wireless frame is used in response to the first wireless frame, and the third channel is the same as or different from the second channel.

[0054] In the above embodiments, by instructing the AP to accurately receive the STA response frame by using the third channel for the STA uplink response, the reliability of communication is improved.

[0055] In conjunction with some embodiments of the first aspect, in some embodiments, the third channel includes at least one 20MHz sub-channel, or the third channel is a resource unit (RU) within the DBE BW, wherein the RU is identified with the 20MHz main channel within the BSS where the AP is located as a reference channel.

[0056] In the above embodiments, by using the 20MHz main channel as the reference identifier RU, the channel identification mechanism is simplified, and the compatibility and resource management efficiency among multiple devices are enhanced.

[0057] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:

[0058] After the first identification information identifies the second channel corresponding to each STA, which consists of at least one 20MHz sub-channel, and the AP receives at least one second radio frame or after the first timeout period has elapsed, the AP sends a third radio frame.

[0059] The third radio frame includes the RU allocated by the AP to the corresponding STA; wherein the RU is located in the second channel.

[0060] In the above embodiments, by allocating RUs after receiving a response frame or after a timeout, it is ensured that available resources can be scheduled in a timely manner even if some STAs do not respond, thereby improving system robustness and resource utilization.

[0061] In conjunction with some embodiments of the first aspect, in some embodiments, the first wireless frame further includes: at least one first identification field;

[0062] The first identifier field is used to extend the frame length of the first wireless frame.

[0063] In the above embodiments, by setting the first identifier field to extend the frame length, it is ensured that each STA has enough time to respond to the command, thereby improving the success rate of command execution.

[0064] In conjunction with some embodiments of the first aspect, in some embodiments, the first duration required for the STA to switch from the first channel to the corresponding second channel.

[0065] In the above embodiments, by extending the frame length to cover the time required for STA channel handover, the integrity and stability of frame interaction are improved.

[0066] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:

[0067] Receive a fourth radio frame sent by the at least one STA; wherein the fourth radio frame includes the first duration.

[0068] In the above embodiments, by receiving the first duration reported by the STA in advance, the frame length setting can be dynamically adjusted according to the actual handover capability of each STA.

[0069] Secondly, embodiments of this disclosure provide a communication method applied to a STA, the method comprising:

[0070] Receive a first radio frame sent by the AP; the first radio frame instructs at least one STA to switch from the first channel to the corresponding second channel;

[0071] Wherein, the bandwidth of the first channel is the extended operating bandwidth DBE BW of the AP in DBE mode; the second channel is the channel resource within the DBE BW.

[0072] In conjunction with some embodiments of the second aspect, in some embodiments, the first radio frame includes first identification information; wherein the first identification information identifies the second channel;

[0073] The second channel includes at least one 20MHz sub-channel, or the second channel is a resource unit (RU) within the DBE BW, and the RU is identified by using the 20MHz main channel within the BSS where the AP is located as a reference channel.

[0074] In conjunction with some embodiments of the second aspect, in some embodiments, the first wireless frame further includes: second identification information;

[0075] Wherein, the second identification information identifies: the third channel through which the AP receives the second wireless frame sent by the STA; wherein, the second wireless frame is used in response to the first wireless frame, and the third channel is the same as or different from the second channel.

[0076] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes:

[0077] The second radio frame is sent to the AP via the third channel within the first timeout period.

[0078] In conjunction with some embodiments of the second aspect, in some embodiments, where the first identification information identifies a second channel consisting of at least one 20MHz sub-channel corresponding to each STA, the method further includes:

[0079] The third radio frame sent by the AP is received; wherein the third radio frame includes the RU allocated by the AP to the corresponding STA; wherein the RU is located in the second channel.

[0080] In conjunction with some embodiments of the second aspect, in some embodiments, the first wireless frame further includes: at least one first identification field;

[0081] The first identifier field is used to extend the frame length of the first radio frame to cover the first time required for each STA to switch from the first channel to the corresponding second channel.

[0082] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes:

[0083] A fourth radio frame is sent to the AP; wherein the fourth radio frame includes the first duration.

[0084] Thirdly, embodiments of this disclosure also provide a communication device, which is an access point (AP), and the AP includes at least one of a determining module and a sending module; wherein the AP is used to execute the optional implementation of the first aspect.

[0085] Fourthly, embodiments of this disclosure also provide a communication device, which is a STA, including: a receiving module; wherein the STA is used to execute an optional implementation of the second aspect.

[0086] Fifthly, embodiments of this disclosure also provide a communication device, which is an access point (AP), comprising:

[0087] One or more processors;

[0088] The AP is used to execute an optional implementation of the first aspect.

[0089] Sixthly, embodiments of this disclosure also provide a communication device, the communication device being a STA, comprising:

[0090] One or more processors;

[0091] The STA is used to execute an optional implementation of the second aspect.

[0092] In a seventh aspect, embodiments of this disclosure also provide a communication system, including an AP and a STA;

[0093] The AP is configured to determine a first radio frame; the first radio frame instructs at least one site device (STA) to switch from a first channel to a corresponding second channel; wherein the bandwidth of the first channel is the extended operating bandwidth (DBE BW) of the AP in Dynamic Bandwidth Extension (DBE) mode; the second channel is the channel resource within the DBE BW; and the first radio frame is transmitted.

[0094] The STA is configured to receive the first wireless frame sent by the AP.

[0095] Eighthly, embodiments of this disclosure also provide a storage medium storing instructions that, when executed on a communication device, cause the communication device to perform the optional implementations described in the first and second aspects.

[0096] Ninthly, embodiments of this disclosure provide a program product that, when executed by a communication device, causes the communication device to perform the method as described in the optional implementations of the first and second aspects.

[0097] In a tenth aspect, embodiments of this disclosure provide a computer program that, when run on a computer, causes the computer to perform the methods described in the optional implementations of the first and second aspects.

[0098] Eleventhly, embodiments of this disclosure provide a chip or chip system. The chip or chip system includes processing circuitry configured to perform the methods described according to optional implementations of the first and second aspects above.

[0099] It is understood that the aforementioned AP, STA, communication system, storage medium, program product, computer program, chip, or chip system are all used to perform the methods proposed in the embodiments of this disclosure. Therefore, the beneficial effects that can be achieved can be referred to the beneficial effects in the corresponding methods, and will not be repeated here.

[0100] This disclosure provides communication methods, communication devices, and communication systems. In some embodiments, the terms "communication method" and "signal transmission method," "wireless frame transmission method," etc., can be used interchangeably, as can the terms "information processing system" and "communication system."

[0101] This disclosure is not exhaustive, but merely illustrative of some embodiments, and is not intended to limit the scope of protection of this disclosure. Unless otherwise specified, each step in a particular embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a particular embodiment can also be implemented as an independent embodiment, and the order of the steps in a particular embodiment can be arbitrarily interchanged. Furthermore, the optional implementation methods in a particular embodiment can be arbitrarily combined; moreover, the embodiments can be arbitrarily combined, for example, some or all steps of different embodiments can be arbitrarily combined, and a particular embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

[0102] In each of the disclosed embodiments, unless otherwise specified or in case of logical conflict, the terminology and / or descriptions of the embodiments are consistent and can be referenced by each other. Technical features in different embodiments can be combined to form new embodiments based on their inherent logical relationships.

[0103] The terminology used in the embodiments of this disclosure is for the purpose of describing particular embodiments only and is not intended to limit the scope of this disclosure.

[0104] In the embodiments disclosed herein, "multiple" refers to two or more.

[0105] In some embodiments, the terms "at least one of A or B, at least one of A and B", "one or more", "a plurality of", "multiple" and the like can be used interchangeably.

[0106] In some embodiments, the notation "at least one of A and B", "A and / or B", "A in one case, B in another", "in response to one case A, in response to another case B", etc., may include the following technical solutions depending on the situation: in some embodiments, A (execute A regardless of whether there is a branch B); in some embodiments, B (execute B regardless of whether there is a branch A); in some embodiments, execution is selected from A and B (A and B are selectively executed); in some embodiments, both A and B are executed. The same applies when there are more branches such as A, B, C, etc.

[0107] In some embodiments, the notation "A or B" may include the following technical solutions, depending on the situation: in some embodiments, A (execute A regardless of whether a branch B exists); in some embodiments, B (execute B regardless of whether a branch A exists); in some embodiments, execution is selected from A and B (A and B are selectively executed). The same applies when there are more branches such as A, B, and C.

[0108] The prefixes "first," "second," etc., used in the embodiments of this disclosure are merely for distinguishing different descriptive objects and do not impose restrictions on the position, order, priority, quantity, or content of the descriptive objects. The description of the descriptive objects is found in the claims or the context of the embodiments, and the use of prefixes should not constitute unnecessary restrictions. For example, if the descriptive object is a "field," the ordinal numbers preceding "field" in "first field" and "second field" do not restrict the position or order of the "fields." "First" and "second" do not restrict whether the "fields" they modify are in the same message, nor do they restrict the order of "first field" and "second field." Similarly, if the descriptive object is a "level," the ordinal numbers preceding "level" in "first level" and "second level" do not restrict the priority between "levels." Furthermore, the number of descriptive objects is not limited by ordinal numbers and can be one or more. For example, in "first device," the number of "devices" can be one or more. Furthermore, the objects modified by different prefixes can be the same or different. For example, if the object being described is "device", then "first device" and "second device" can be the same device or different devices, and their types can be the same or different. Similarly, if the object being described is "information", then "first information" and "second information" can be the same information or different information, and their content can be the same or different.

[0109] In some embodiments, “including A,” “containing A,” “for indicating A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0110] In some embodiments, terms such as "time / frequency" and "time-frequency domain" refer to the time domain and / or frequency domain.

[0111] In some embodiments, terms such as “in response to…”, “in response to determining…”, “in the case of…”, “when…”, “when…”, “if…”, etc. can be used interchangeably. These descriptions all refer to the device making a corresponding action under certain objective circumstances. They do not necessarily limit the time, nor do they require the device to make a judgment action when implementing it, nor do they mean that there must be other limitations.

[0112] In some embodiments, the terms “greater than,” “greater than or equal to,” “not less than,” “more than,” “more than or equal to,” “not less than,” “higher than,” “higher than or equal to,” “not lower than,” and “above” can be used interchangeably, as can the terms “less than,” “less than or equal to,” “not greater than,” “less than,” “less than or equal to,” “not more than,” “lower than,” “lower than or equal to,” “not higher than,” and “below”.

[0113] In some embodiments, devices, etc., may be interpreted as physical or virtual, and their names are not limited to those described in the embodiments. Terms such as “device,” “equipment,” “circuit,” “network element,” “network function,” “network device,” “function,” “node,” “unit,” “section,” “system,” “network,” “chip,” “chip system,” “entity,” and “subject” are interchangeable.

[0114] In some embodiments, "network" can be interpreted as devices included in a network (e.g., access network devices, core network devices, etc.).

[0115] In addition, terms such as "uplink" and "downlink" can be replaced with terms corresponding to inter-terminal communication (e.g., "side"). For example, uplink channel and downlink channel can be replaced with side channel, and uplink link and downlink link can be replaced with side link.

[0116] In some embodiments, the acquisition of data, information, etc., may comply with the laws and regulations of the country where the location is situated.

[0117] In some embodiments, data, information, etc., may be obtained with the user's consent.

[0118] Furthermore, each element, each row, or each column in the table of this disclosure can be implemented as an independent embodiment, and any combination of any element, any row, or any column can also be implemented as an independent embodiment.

[0119] Figure 1 This is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure.

[0120] like Figure 1 As shown, the communication system 100 includes an access point (AP) 101 and a station (STA) 102.

[0121] In some embodiments, site device 102 includes, for example, a wireless communication chip, a wireless sensor, or a wireless communication terminal that supports Wi-Fi communication. Optionally, the wireless communication terminal may be at least one of, but is not limited to, a mobile phone, a wearable device, an IoT device that supports Wi-Fi communication, a car with Wi-Fi communication capabilities, a smart car, a tablet computer, a computer with wireless transceiver capabilities, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, and a wireless terminal device in a smart home.

[0122] Specifically, site device 102 can be a terminal device or network device with a Wi-Fi chip. Optionally, site device 102 can support multiple WLAN standards such as 802.11ax, 802.11be, 802.11ac, 802.11n, 802.11g, 802.11b, 802.11a, 802.11bf, and 802.11bn, as well as the next-generation 802.11 protocol, but is not limited to these.

[0123] In some embodiments, access point device 101 can be an access point for mobile terminals to access a wired network. An AP acts as a bridge connecting wired and wireless networks, its main function being to connect various wireless network clients together and then connect the wireless network to an Ethernet network. Specifically, an AP can be a terminal device or network device with a Wi-Fi chip. Optionally, the AP can support various WLAN standards such as 802.11ax, 802.11be, 802.11ac, 802.11n, 802.11g, 802.11b, 802.11a, 802.11bf, and 802.11bn, as well as the next-generation 802.11 protocol, but is not limited to these.

[0124] Optionally, in this embodiment of the disclosure, AP and STA can be devices that support multiple links. For example, they can be represented as Access Point Multi-Link Device (AP MLD) and Non-Access Point Multi-Link Device (Non-AP MLD), respectively. AP MLD can represent an access point that supports multi-link communication functions, and non-AP MLD can represent a site that supports multi-link communication functions. For example, in this embodiment of the disclosure, link can represent connection or link; in various embodiments, connection and link can be interchanged.

[0125] It is understood that the communication system described in this disclosure is for the purpose of more clearly illustrating the technical solutions of this disclosure, and does not constitute a limitation on the technical solutions proposed in this disclosure. As those skilled in the art will know, with the evolution of system architecture and the emergence of new business scenarios, the technical solutions proposed in this disclosure are also applicable to similar technical problems.

[0126] The following embodiments of this disclosure can be applied to Figure 1 The communication system 100 shown, or a part thereof, but not limited to it. Figure 1 The entities shown are illustrative; a communication system may include... Figure 1 All or part of the main body, or may include Figure 1 Other entities besides the main body, the number and form of each entity are arbitrary, each entity can be physical or virtual, the connection relationship between the entities is illustrative, the entities can be unconnected or connected, and the connection can be in any way, it can be a direct connection or an indirect connection, it can be a wired connection or a wireless connection.

[0127] The embodiments disclosed herein can be applied to Wireless Local Area Networks (WLANs), such as WLANs using the 802.11 series of protocols. In a WLAN, a Basic Service Set (BSS) is a fundamental component. An BSS network consists of site devices with some association within a specific coverage area. One type of association is where sites communicate directly with each other in a self-organizing network; this is called an Independent Basic Service Set (IBSS). Another more common scenario is that in a BSS network, there is only one central site dedicated to managing the BSS, called the Access Point (AP) device, and all other STAs in the network are associated with it. Other sites in the BSS network that are not the central site are called terminals, also known as non-AP STAs; terminals and non-AP STAs are collectively referred to as STAs. When describing STAs, it is not necessary to distinguish between terminals and non-AP STAs. Within the same BSS network, due to distance, transmission power, etc., a STA cannot detect other STAs that are far away; they are each other's hidden nodes.

[0128] Figure 2 This is one of the interactive schematic diagrams of a communication method according to an embodiment of this disclosure. For example... Figure 2 As shown, the above method includes:

[0129] Step 201, AP 101 determines a first radio frame; the first radio frame instructs at least one site device STA 102 to switch from the first channel to the corresponding second channel;

[0130] Wherein, the bandwidth of the first channel is the operating bandwidth (DBE Bandwidth, DBE BW) of the AP after expansion in Dynamic Band Expansion (DBE) mode; the second channel is the channel resource within the DBE BW.

[0131] In Wireless Local Area Networks (WLANs), the continuous growth in the number of users and the increasing complexity of application scenarios present severe performance challenges. In high-density deployment environments such as enterprises, stadiums, and airports, it is difficult to simultaneously ensure optimal user experience in terms of connection speed and link stability. Interference between multiple frequency bands and multiple users is also intensifying; sudden bursts of real-time traffic may not be able to meet service demands in a timely manner when resources are limited. Furthermore, in newly opened frequency bands such as 6GHz, different countries / regions have varying regulations on power and channel usage, further exacerbating spectrum fragmentation and usage complexity. To improve spectrum utilization efficiency and adaptability, a DBE (Distributed Optimization and Optimization) operating mode is proposed. This mode supports flexible management of multi-band resources, enhances data transmission rates, coverage, and connection reliability, and adapts to complex and dynamic wireless communication environments.

[0132] Specifically, the DBE operating mode allows devices to dynamically expand their operating bandwidth based on currently available spectrum resources to adapt to fragmented channel conditions. Traditional fixed bandwidth modes (such as 20MHz, 40MHz, 80MHz, 160MHz) struggle to fully utilize discontinuous channel resources, while DBE can expand the operating bandwidth as long as discontinuous channel blocks are available. For example, when operating on a basic 80MHz bandwidth, the device can dynamically expand to 160MHz or even 320MHz operating bandwidth, provided the system allows, to fully utilize available sub-channels or idle frequency bands in the current spectrum, thereby improving overall data throughput efficiency.

[0133] However, several technical challenges remain in the DBE mechanism. For example, how to standardize the DBE operation process, reasonably control transmission interference between multiple users, and improve spectrum utilization efficiency requires further definition.

[0134] In this embodiment of the disclosure, the AP that sends the first wireless frame and the STA that receives the first wireless frame are communication devices that support DBE mode. The AP includes, but is not limited to, a multi-link access point device (AP MLD) supporting multi-link operation and an affiliated AP attached to the AMMLD; the STA includes, but is not limited to, a multi-link site device (non-AP MLD) supporting multi-link operation and an affiliated multi-link site device (non-AP STA) attached to the non-AP MLD; wherein, the STA is a site device associated with the AP.

[0135] Optionally, the AP sends the first radio frame during the initial frame exchange with the associated STA in DBE mode, or when the AP triggers the associated STA to send an uplink physical layer protocol data unit (PPDU). The first radio frame instructs one or more STAs to switch from the first channel to the corresponding second channel. The first radio frame includes, but is not limited to, announcement frames, notification frames, multi-user request transmission trigger MU-RTS Trigger frames, and buffer status reporting polling trigger BSRP Trigger frames. The bandwidth of the first channel is the extended operating bandwidth (DBE BW) of the AP in DBE mode. For example, if the BSS BW of the BSS where the AP is located is 40MHz, the extended DBE BW of the AP includes, but is not limited to, 80MHz, 160MHz, and 320MHz. Alternatively, if the BSS BW of the BSS where the AP is located is 80MHz, the extended DBE BW of the AP includes, but is not limited to, 160MHz and 320MHz. Another example is that if the BSS BW of the BSS where the AP is located is 160MHz, the extended DBE BW of the AP can be 320MHz. The second channel refers to the channel resources within the DBE BW, which is the target channel for communication within the spectrum covered by the DBE BW, based on the channel location identified by the AP in the first radio frame. The second channel can be a continuous or discontinuous channel composed of one or more 20MHz sub-channels, or a resource unit (RU) within the DBE BW bandwidth range. For example, when the AP's extended DBEBW is 160MHz, the second channel can be one of the 40MHz sub-channels (e.g., the middle 40MHz band), or one or more RUs (e.g., 106-tone RU, 242-tone RU, etc.), with its frequency domain position identified by the 20MHz primary 20MHz channel of the BSS where the AP is located. By instructing the STA to switch to the corresponding second channel in the first radio frame, the interaction process between the AP and STA in DBE operation mode is further standardized, allowing the AP to flexibly allocate spectrum resources, improve spectrum utilization efficiency, and reduce channel interference when multiple STAs communicate simultaneously.

[0136] Step 202, AP 101 sends the first radio frame.

[0137] In this embodiment of the disclosure, the AP sends the first radio frame, which includes second channel information indicated for different STAs, enabling multiple STAs to switch to different sub-channels or RUs in the DBE BW for communication, thereby improving spectrum utilization. The sub-channels in the DBE BW can be channels composed of one or more 20MHz channels.

[0138] Step 203: STA 102 receives the first wireless frame and switches to the corresponding second channel for communication.

[0139] In this embodiment, the STA receives a first radio frame sent by the AP and switches to the corresponding second channel according to the channel indication information contained in the first radio frame. This second channel is a portion of the spectrum resources within the operating bandwidth (DBE BW) configured by the AP in DBE mode. The STA can complete channel switching preparation after receiving the frame based on its own bandwidth capabilities and enter the corresponding channel resource for subsequent uplink or downlink communication with the AP. The channel resources include, but are not limited to, a channel consisting of one or more 20MHz channels, and RUs within the first channel bandwidth (the RUs have used the Primary 20MHz channel of the BSS where the AP is located as a reference channel).

[0140] In some embodiments, the first radio frame includes first identification information; wherein the first identification information identifies the second channel corresponding to each of the STAs;

[0141] The second channel includes at least one 20MHz sub-channel, or the second channel is a resource unit (RU) within the DBE BW, wherein the RU is identified by using the primary 20MHz channel within the basic service set (BSS) where the AP is located as the reference channel.

[0142] In this embodiment of the disclosure, the first radio frame includes first identification information for identifying the second channel corresponding to each STA. The second channel may include at least one 20MHz sub-channel (the bandwidth of the second channel does not exceed the DBE BW), or a RU within the DBE BW. When RUs are used as units, the RU is identified with the 20MHz (Primary 20MHz) primary channel in the Basic Service Set (BSS) where the AP is located as the reference channel, ensuring that the STA can accurately locate the position of each RU in the spectrum.

[0143] like Figure 3As shown, in a scenario where the BSS operating bandwidth is 80MHz and the extended DBE BW of the AP is 160MHz, the AP can allocate a second channel to each STA. For example, STA1 and STA2 are allocated to channels within the original BSS BW range of 20MHz or 40MHz, while STA3 and STA4 are allocated to the extended spectrum resources. Options 1 and 2 in the figure illustrate the channel allocation methods for different STAs under the DBE BW, reflecting the system's flexible scheduling capability of spectrum resources.

[0144] In Option 1, STA1 is allocated to the 20MHz main channel range, STA2 uses the main channel plus an adjacent 20MHz sub-channel to form a 40MHz bandwidth, STA3 is allocated to the 40MHz band outside the BSS BW and in the extended part of the DBE BW, and STA4 uses the Secondary 80MHz (the rightmost 80MHz extended band) in the DBE BW as its second channel.

[0145] In Option 2, STA1 and STA2 remain in different sub-bands within the main channel range, while STA3 and STA4 use non-overlapping areas within the extended band. It should be noted that... Figure 3 The Options 1 and 2 shown are merely illustrative examples of channel resource allocation methods in this disclosure, used to illustrate one or more feasible schemes for allocating a second channel to multiple STAs within the DBE BW range, and do not constitute a limitation on the embodiments of this disclosure. In practical applications, the AP can flexibly configure the channel allocation method according to factors such as the STA's bandwidth capacity, service requirements, and channel occupancy.

[0146] In some embodiments, the first wireless frame further includes: second identification information;

[0147] Wherein, the second identification information identifies: the third channel through which the AP receives the second wireless frame sent by the STA; wherein, the second wireless frame is used in response to the first wireless frame, and the third channel is the same as or different from the second channel.

[0148] In this embodiment of the disclosure, the first radio frame may further include second identification information, used to indicate the third channel that the STA should use to send a response frame (i.e., the second radio frame) after receiving the first radio frame. The third channel is the spectrum resource for the AP to receive the second radio frame, its frequency range does not exceed the bandwidth of the first channel, and may be the same as or different from the second channel indicated in the first radio frame. For example, if the STA's uplink capability or channel conditions change, the AP can flexibly instruct the STA to respond on different uplink channels through the second identification information.

[0149] In some embodiments, the third channel includes at least one 20MHz sub-channel, or the third channel is a resource unit (RU) within the DBE BW, wherein the RU is identified with the primary 20MHz channel within the BSS where the AP is located as the reference channel.

[0150] In this embodiment of the disclosure, the third channel includes at least one 20MHz sub-channel, or is a RU within the DBE BW. When an RU is used, the RU is identified with the primary 20MHz channel within the BSS where the AP is located as the reference channel. Optionally, the third channel can be the same as the second channel, meaning the STA performs downlink reception and uplink response on the same channel; or it can be different from the second channel to achieve more flexible uplink and downlink channel configuration.

[0151] In some embodiments, the method further includes:

[0152] After the first identification information identifies the second channel corresponding to each STA, which consists of at least one 20MHz sub-channel, and the AP receives at least one second radio frame or after the first timeout period has elapsed, the AP sends a third radio frame.

[0153] The third radio frame includes the RU allocated by the AP to the corresponding STA; wherein the RU is located in the second channel.

[0154] In this embodiment of the disclosure, after the first identification information identifies the second channel consisting of at least one 20MHz sub-channel corresponding to each STA, if the AP receives a second radio frame sent by at least one STA, or after the first timeout period has elapsed, the AP sends a third radio frame to allocate RUs to each STA. The RU is located within the second channel pre-assigned by the AP for that STA, thus achieving precise resource allocation of the STA in the spectrum.

[0155] For example, the AP can instruct the STA to switch to a specific sub-channel within the DBE bandwidth via the first radio frame. After the STA completes the channel switch and responds, the AP can further allocate an RU to the STA within that sub-channel for subsequent uplink PPDU transmission.

[0156] Optionally, if the AP does not receive a response from the STA within the first timeout period, the AP can determine that the STA has not successfully switched to the indicated second channel. In this case, the AP can still communicate with the STA within the unextended BSS Operation BW to ensure basic communication stability.

[0157] In some embodiments, the first wireless frame further includes: at least one first identification field;

[0158] The first identifier field is used to extend the frame length of the first radio frame, so that each STA has time to respond to the first radio frame.

[0159] In this embodiment of the disclosure, the first wireless frame further includes at least one first identification field for extending the overall frame length of the frame. The first identification field includes, but is not limited to, a padding field. In related technologies, the padding field is used to extend the frame transmission time or align the frame structure to meet the physical layer (PHY) requirements for frame duration alignment and orthogonal frequency division multiplexing (OFDM) symbol alignment. It can also be used in scheduling scenarios to provide response time for STAs, improving coordination and reliability in multi-user communication.

[0160] In this embodiment of the disclosure, the setting of the first identifier field enables each STA to have a certain response time window after receiving the first radio frame, so as to send a response frame in a timely manner after completing operations such as channel switching and state preparation.

[0161] In some embodiments, the extended frame length of the first radio frame covers the first duration required for each STA to switch from the first channel to the corresponding second channel.

[0162] In this embodiment of the disclosure, the first radio frame extends its length by adding padding or control fields, ensuring that the extended frame duration covers the first time required for each STA to switch from the first channel to its corresponding second channel. In other words, the AP controls the duration of the first radio frame to reserve sufficient handover processing time for the STA, ensuring that it can respond to the frame or perform subsequent scheduling operations on time after completing the channel handover.

[0163] In some embodiments, the method further includes:

[0164] Receive a fourth radio frame sent by the at least one STA; wherein the fourth radio frame includes the first duration.

[0165] In this embodiment of the disclosure, the AP receives a fourth radio frame sent by at least one STA, the fourth radio frame containing a first duration. This first duration represents the channel handover delay required for the STA to switch from a first channel to a corresponding second channel in DBE mode, and may include, for example, a DBE switch delay or a DBE padding delay. Based on the first duration reported by the STA in the fourth radio frame, the AP can set a first padding field in the first radio frame to extend the frame length of the first radio frame, thus covering the STA's handover duration.

[0166] In some embodiments, the names of information, etc., are not limited to the names described in the embodiments. Terms such as "information", "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "domain", "field", "symbol", "symbol", "codebook", "codeword", "codepoint", "bit", "data", "program", and "chip" can be used interchangeably.

[0167] In some embodiments, terms such as “moment,” “point in time,” “time,” and “time location” can be used interchangeably, as can terms such as “duration,” “segment,” “time window,” “window,” and “time.”

[0168] In some embodiments, terms such as wireless access scheme and waveform can be used interchangeably.

[0169] In some embodiments, terms such as "certain," "preset," "default," "set," "indicated," "a certain," "any," and "first" can be used interchangeably. "Certain A," "preset A," "default A," "set A," "indicated A," "a certain A," "any A," and "first A" can be interpreted as A pre-defined in a protocol or the like, or as A obtained through setting, configuration, or instruction, or as specific A, a certain A, any A, or first A, but are not limited thereto.

[0170] In some embodiments, the determination or judgment can be made by a value represented by 1 bit (0 or 1), or by a true or false value (boolean), or by a comparison of numerical values ​​(e.g., a comparison with a predetermined value), but is not limited thereto.

[0171] In some embodiments, "not expecting to receive" can be interpreted as not receiving on time domain resources and / or frequency domain resources, or as not performing subsequent processing on the data after receiving it; "not expecting to send" can be interpreted as not sending, or as sending but not expecting the receiver to respond to the sent content.

[0172] The communication method involved in the embodiments of this disclosure may include at least one of steps 201 to 203. For example, step 201 may be implemented as an independent embodiment, step 202 may be implemented as an independent embodiment, step 203 may be implemented as an independent embodiment, steps 201+202 may be implemented as an independent embodiment, and steps 201+202+203 may be implemented as an independent embodiment, but are not limited thereto.

[0173] In some embodiments, the steps and their optional implementations in other embodiments described before or after this embodiment, as well as other related parts in the specification, can be referred to, and will not be repeated here.

[0174] In some embodiments, the names of information, etc., are not limited to the names described in the embodiments. Terms such as "information", "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "domain", "field", "symbol", "symbol", "codebook", "codeword", "codepoint", "bit", "data", "program", and "chip" can be used interchangeably.

[0175] In some embodiments, terms such as “moment,” “point in time,” “time,” and “time location” can be used interchangeably, as can terms such as “duration,” “segment,” “time window,” “window,” and “time.”

[0176] In some embodiments, terms such as wireless access scheme and waveform can be used interchangeably.

[0177] In some embodiments, terms such as "certain," "preset," "default," "set," "indicated," "a certain," "any," and "first" can be used interchangeably. "Certain A," "preset A," "default A," "set A," "indicated A," "a certain A," "any A," and "first A" can be interpreted as A pre-defined in a protocol or the like, or as A obtained through setting, configuration, or instruction, or as specific A, a certain A, any A, or first A, but are not limited thereto.

[0178] In some embodiments, the determination or judgment can be made by a value represented by 1 bit (0 or 1), or by a true or false value (boolean), or by a comparison of numerical values ​​(e.g., a comparison with a predetermined value), but is not limited thereto.

[0179] In some embodiments, "not expecting to receive" can be interpreted as not receiving on time domain resources and / or frequency domain resources, or as not performing subsequent processing on the data after receiving it; "not expecting to send" can be interpreted as not sending, or as sending but not expecting the receiver to respond to the sent content.

[0180] The communication method involved in the embodiments of this disclosure may include at least one of steps 201 to 203. For example, step 201 may be implemented as an independent embodiment, step 202 may be implemented as an independent embodiment, step 203 may be implemented as an independent embodiment, steps 201+202 may be implemented as an independent embodiment, and steps 201+202+203 may be implemented as an independent embodiment, but are not limited thereto.

[0181] In some embodiments, the steps and their optional implementations in other embodiments described before or after this embodiment, as well as other related parts in the specification, can be referred to, and will not be repeated here.

[0182] Figure 4This is a second interactive schematic diagram of a communication method according to an embodiment of this disclosure. For example... Figure 4 As shown, the embodiments of this disclosure relate to a communication method, which includes:

[0183] Step 401, AP 101 determines a first radio frame; the first radio frame instructs at least one STA 102 to switch from a first channel to a corresponding second channel; the second channel includes at least one 20MHz sub-channel.

[0184] In this embodiment of the disclosure, the AP determines a first radio frame to instruct one or more STAs to switch from the currently operating first channel to a corresponding second channel. The first radio frame includes, but is not limited to, an announcement frame or a notification frame; the first channel is the extended operating bandwidth range used by the AP in DBE mode. The second channel is a subset of the first channel, specifically including at least one 20MHz sub-channel, i.e., an independent spectrum segment divided into 20MHz units.

[0185] For example, the BSS operating bandwidth is 80MHz, and the DBE BW is 160MHz. STA1, STA2, STA3, and STA4 support DBE functionality, with operating bandwidths of 20MHz, 40MHz, 40MHz, and 80MHz respectively. After enabling or activating DBE mode, the AP can send a first radio frame indicating the second channel for each STA, for example... Figure 3 Option 1 and Option 2.

[0186] Step 402, AP 101 sends the first radio frame.

[0187] In this embodiment of the present disclosure, the AP sends a first radio frame to one or more STAs. The first radio frame contains indication information of the second channel that the STA should switch to, specifically indicating that each STA needs to switch from its current first channel to the corresponding second channel (e.g., including at least one 20MHz sub-channel). By sending this frame, the AP can simultaneously coordinate multiple STAs to switch channels as needed, facilitating efficient data interaction within the specified frequency band.

[0188] Step 403, STA 102 receives the first radio frame.

[0189] In this embodiment of the present disclosure, after receiving the first radio frame and switching to the second channel, the receiving STA sends a second radio frame to the AP in response through the third channel identified by the second identification information in the first radio frame within a first timeout period.

[0190] Step 404, STA 102 sends a second radio frame, which is used in response to the first radio frame.

[0191] Optionally, the STA may send a second radio frame to the AP within a first timeout period after receiving the first radio frame, or the STA may not send a second radio frame to the AP within a first timeout period after receiving the first radio frame.

[0192] Step 405, AP 101 receives the second radio frame.

[0193] In this embodiment of the disclosure, if the AP receives a second radio frame sent by the STA within the first timeout period, it is considered that the corresponding STA has switched to the corresponding second channel. In this case, the AP can communicate with the corresponding STA through the second channel, or further allocate an RU to the STA within the specified second channel by sending a third radio frame. If the AP does not receive a second radio frame sent by the STA within the first timeout period, that is, after the first timeout period has elapsed, the AP sends a third radio frame, which is used to allocate an RU to the receiving STA. The RU allocated to each STA is within the second channel identified by the first radio frame. The third radio frame can be a trigger frame, which includes, but is not limited to, MU-RTS Trigger frames and BSRP Trigger frames.

[0194] Step 406, AP 101 sends a third radio frame, the third radio frame including the RU allocated by AP 101 for the corresponding STA 102 in the second channel.

[0195] In this embodiment of the disclosure, the AP may send a third radio frame after receiving at least one second radio frame or after the first timeout period has elapsed; wherein the third radio frame is used to allocate RU to the receiving STA; wherein the RU allocated to each STA is in the second channel identified by the first radio frame.

[0196] For example, in Figure 3 In the Option 1 example, the AP has the following restrictions on the number of RUs allocated to each STA:

[0197] STA1 is assigned an RU located in the Primary 20MHz sub-channel;

[0198] STA2 is assigned an RU located in the Primary 40MHz sub-channel;

[0199] STA3 is assigned an RU located in the Secondary 40MHz sub-channel;

[0200] STA4 is assigned an RU located in the Secondary 80MHz (i.e., extended 80MHz) sub-channel.

[0201] Step 407: STA 102 receives the third radio frame and communicates within the RU.

[0202] In this embodiment of the disclosure, the STA receives the third radio frame and communicates within the RU, indicating that after receiving the third radio frame (e.g., a trigger frame) sent by the AP, the receiving STA performs uplink or downlink communication operations within the allocated RU according to the RU information indicated in the frame.

[0203] In this embodiment of the disclosure, the third radio frame is used to explicitly inform the STA of the location and size of the RU that it can use, so as to transmit data on the designated spectrum resources of the second channel, ensuring the reasonable allocation of spectrum resources among multiple STAs, avoiding conflicting or overlapping communication, and realizing the efficient utilization of dynamic spectrum resources in DBE mode.

[0204] The communication method involved in the embodiments of this disclosure may include at least one of steps 401 to 407. For example, step 401 may be implemented as an independent embodiment, step 402 may be implemented as an independent embodiment, step 403 may be implemented as an independent embodiment, step 404 may be implemented as an independent embodiment, step 405 may be implemented as an independent embodiment, step 406 may be implemented as an independent embodiment, and step 407 may be implemented as an independent embodiment. Steps 401+402, 402+403, 403+404, 404+405, 405+406, and 406+407 can be implemented as independent embodiments, but are not limited thereto.

[0205] In some embodiments, the steps and their optional implementations in other embodiments described before or after this embodiment, as well as other related parts in the specification, can be referred to, and will not be repeated here.

[0206] The communication method involved in the embodiments of this disclosure may include at least one of steps 401 to 407. For example, step 401 may be implemented as an independent embodiment, step 402 may be implemented as an independent embodiment, step 403 may be implemented as an independent embodiment, step 404 may be implemented as an independent embodiment, step 405 may be implemented as an independent embodiment, step 406 may be implemented as an independent embodiment, and step 407 may be implemented as an independent embodiment. Steps 401+402, 402+403, 403+404, 404+405, 405+406, and 406+407 can be implemented as independent embodiments, but are not limited thereto.

[0207] In some embodiments, the steps and their optional implementations in other embodiments described before or after this embodiment, as well as other related parts in the specification, can be referred to, and will not be repeated here.

[0208] Figure 5 This is the third interactive schematic diagram of the communication method shown according to an embodiment of this disclosure. For example... Figure 5 As shown, the embodiments of this disclosure relate to a communication method, which includes:

[0209] Step 501, AP 101 determines a first radio frame; the first radio frame instructs at least one STA 102 to switch from the first channel to the corresponding second channel; the second channel is a resource unit RU within the DBE BW.

[0210] In this embodiment of the disclosure, the AP determines a first radio frame; the first radio frame instructs at least one STA to switch from a first channel to a corresponding second channel; the second channel is a RU within the DBE BW. Specifically, in DBE mode, the AP directly allocates an RU located within the DBE BW for each STA based on available spectrum resources, and indicates this through the first radio frame.

[0211] Optionally, the first radio frame includes, but is not limited to, a MU-RTS Trigger frame or a BSRP Trigger frame; wherein the MU-RTS Trigger frame or BSRP Trigger frame includes an RU field, which identifies the RUs assigned by the AP to each STA; the positions of these RUs are marked with the Primary 20MHz channel within the current BSS as the reference channel. After obtaining the TXOP, the AP can use the aforementioned Trigger frame to complete the initial frame exchange with multiple STAs, or use it to trigger STAs to send uplink Physical Protocol Data Units (PPDUs).

[0212] For example, in Figure 3 In this configuration, the BSS operating bandwidth is 80MHz, and the DBE BW is 160MHz. There are legacy STA1 and STA2 with operating bandwidths of 20MHz and 40MHz respectively, and STA3 and STA4, which support DBE, with operating bandwidths of 40MHz and 80MHz respectively. The RU field of the MU-RTS Trigger frame or BSRP Trigger frame transmitted by the AP carries the RUs allocated by the AP to each STA, including at least one of the following:

[0213] STA1 is assigned an RU located in the Primary 20MHz sub-channel;

[0214] STA2 is assigned an RU located in the Primary 40MHz sub-channel;

[0215] STA3 is assigned an RU located in the Secondary 40MHz sub-channel;

[0216] STA4 is assigned an RU located in the Secondary 80MHz (i.e., extended 80MHz) sub-channel.

[0217] Step 502, AP 101 sends the first radio frame.

[0218] In this embodiment of the disclosure, the AP sends the first radio frame to instruct one or more STAs to switch from the first channel to the corresponding second channel; wherein the first radio frame includes, but is not limited to, MU-RTS Trigger frames and BSRP Trigger frames.

[0219] Step 503, STA 102 receives the first radio frame.

[0220] In this embodiment of the disclosure, the first radio frame received by the STA (such as a MU-RTS Trigger frame or a BSRP Trigger frame) contains an RU field, which identifies the target RU located within the DBE BW assigned to the STA by the AP.

[0221] Step 504, STA 102 sends a second radio frame, which is used in response to the first radio frame.

[0222] In this embodiment of the disclosure, after the STA receives the first radio frame and after an interval of at least one Short Interframe Space (SIFS), it responds to the MU-RTS Trigger frame sent by the AP by sending a Clear to Send frame (CTS) through the RU allocated by the AP, or the STA responds to the BSRP Trigger frame sent by the AP by sending a Multi-STA Block Acknowledgement (M-STA BA) frame through the RU allocated by the AP.

[0223] Step 505: AP 101 receives the second radio frame and communicates with the corresponding STA 102 within the RU.

[0224] In this embodiment of the disclosure, when the first timeout period is reached, the AP can determine whether the MU-RTS Trigger frame or the BSRP Trigger frame has been successfully sent based on whether it has received the response frame (i.e., the second radio frame) sent by the STA.

[0225] Specifically, if the AP successfully receives a response frame from at least one STA within the first timeout period, the MU-RTS Trigger frame or BSRP Trigger frame is considered to have been successfully transmitted. At this point, the AP can then conduct subsequent data communication with the corresponding STA within the RU allocated in the Trigger frame, thereby achieving efficient uplink or downlink resource scheduling and transmission. This process improves resource utilization efficiency and ensures communication reliability in a multi-STA environment.

[0226] Figure 6 This is one of the flowcharts illustrating a communication method according to an embodiment of the present disclosure.

[0227] like Figure 6 As shown, the above method can be applied to AP 101, and the method includes:

[0228] Step 601, determine the first radio frame; the first radio frame instructs at least one site device (STA) to switch from the first channel to the corresponding second channel;

[0229] Wherein, the bandwidth of the first channel is the operating bandwidth DBE BW of the AP after expansion in the Dynamic Bandwidth Extension (DBE) mode; the second channel is the channel resource within the DBE BW;

[0230] Step 602: Send the first wireless frame.

[0231] Optionally, in this embodiment of the present disclosure, the first radio frame includes first identification information; wherein, the first identification information identifies the second channel corresponding to each of the STAs;

[0232] The second channel includes at least one 20MHz sub-channel, or the second channel is a resource unit (RU) within the DBE BW, wherein the RU is identified by using the 20MHz primary channel within the basic service set (BSS) where the AP is located as a reference channel.

[0233] Optionally, in this embodiment of the present disclosure, the first wireless frame further includes: second identification information;

[0234] Wherein, the second identification information identifies: the third channel through which the AP receives the second wireless frame sent by the STA; wherein, the second wireless frame is used in response to the first wireless frame, and the third channel is the same as or different from the second channel.

[0235] Optionally, in this embodiment of the disclosure, the third channel includes at least one 20MHz sub-channel, or the third channel is a resource unit (RU) within the DBE BW, wherein the RU is identified by using the 20MHz main channel within the BSS where the AP is located as a reference channel.

[0236] Step 603: After the first identification information identifies the second channel corresponding to each STA, which consists of at least one 20MHz sub-channel, and the AP receives at least one second radio frame or after the first timeout period has elapsed, the AP sends a third radio frame.

[0237] The third radio frame includes the RU allocated by the AP to the corresponding STA; wherein the RU is located in the second channel.

[0238] Optionally, in this embodiment of the present disclosure, the first wireless frame further includes: at least one first identification field;

[0239] The first identifier field is used to extend the frame length of the first radio frame, so that each STA has time to respond to the first radio frame.

[0240] Optionally, in this embodiment of the disclosure, the extended frame length of the first radio frame covers the first duration required for each STA to switch from the first channel to the corresponding second channel.

[0241] Optionally, in this embodiment of the disclosure, the method further includes:

[0242] Receive a fourth radio frame sent by the at least one STA; wherein the fourth radio frame includes the first duration.

[0243] The communication method involved in the embodiments of this disclosure may include at least one of steps 601 to 603. For example, step 601 may be implemented as a standalone embodiment, step 602 may be implemented as a standalone embodiment, step 603 may be implemented as a standalone embodiment, steps 601+602 may be implemented as standalone embodiments, steps 602+603 may be implemented as standalone embodiments, and steps 601+602+603 may be implemented as standalone embodiments, but are not limited thereto.

[0244] In some embodiments, the steps and their optional implementations in other embodiments described before or after this embodiment, as well as other related parts in the specification, can be referred to, and will not be repeated here.

[0245] Figure 7 This is a second schematic flowchart illustrating a communication method according to an embodiment of the present disclosure.

[0246] like Figure 7 As shown, the above method can be applied to STA 102, and the method includes:

[0247] Step 701: Receive a first radio frame sent by the AP; the first radio frame indicates that at least one STA switches from the first channel to the corresponding second channel;

[0248] Wherein, the bandwidth of the first channel is the extended operating bandwidth DBE BW of the AP in DBE mode; the second channel is the channel resource within the DBE BW.

[0249] Optionally, in this embodiment of the disclosure, the first wireless frame includes first identification information; wherein the first identification information identifies the second channel;

[0250] The second channel includes at least one 20MHz sub-channel, or the second channel is a resource unit (RU) within the DBE BW, and the RU is identified by using the 20MHz main channel within the BSS where the AP is located as a reference channel.

[0251] Optionally, in this embodiment of the present disclosure, the first wireless frame further includes: second identification information;

[0252] Wherein, the second identification information identifies: the third channel through which the AP receives the second wireless frame sent by the STA; wherein, the second wireless frame is used in response to the first wireless frame, and the third channel is the same as or different from the second channel.

[0253] Step 702: Send the second radio frame to the AP through the third channel within the first timeout period.

[0254] Step 703: Receive a third radio frame sent by the AP; wherein the third radio frame includes an RU allocated by the AP to the corresponding STA; wherein the RU is located in the second channel.

[0255] Optionally, in this embodiment of the present disclosure, the first wireless frame further includes: at least one first identification field;

[0256] The first identifier field is used to extend the frame length of the first radio frame, so that each STA has time to respond to the first radio frame.

[0257] Optionally, in this embodiment of the disclosure, the extended frame length of the first radio frame covers the first duration required for each STA to switch from the first channel to the corresponding second channel.

[0258] Optionally, in this embodiment of the disclosure, the method further includes:

[0259] A fourth radio frame is sent to the AP; wherein the fourth radio frame includes the first duration.

[0260] The communication method involved in the embodiments of this disclosure may include at least one of steps 701 to 703. For example, step 701 may be implemented as an independent embodiment, step 702 may be implemented as an independent embodiment, step 703 may be implemented as an independent embodiment, steps 701+702 may be implemented as an independent embodiment, steps 702+703 may be implemented as an independent embodiment, and steps 701+702+703 may be implemented as an independent embodiment, but are not limited thereto.

[0261] In some embodiments, the steps and their optional implementations in other embodiments described before or after this embodiment, as well as other related parts in the specification, can be referred to, and will not be repeated here.

[0262] The UHR vision is to improve the reliability of WLAN connectivity, reduce latency, improve manageability, increase throughput at different signal-to-noise ratio (SNR) levels, and reduce device-level power consumption.

[0263] In high-density deployment scenarios such as enterprises, stadiums, and airports, user experience faces significant challenges in balancing speed and connection stability, with increasing interference between multiple frequency bands and users; sudden bursts of real-time traffic may be difficult to meet user demands. Furthermore, there are regulatory-sensitive areas, such as adapting to power and channel restrictions in different countries within the 6GHz band. Intelligent spectrum management to temporarily expand bandwidth to meet instantaneous high demands and maximize throughput, thereby satisfying future heterogeneous network environments and user needs, has become a current research hotspot.

[0264] The IEEE 802.11bn working group proposes a Dynamic Band Expansion (DBE) operating mode to improve spectrum utilization efficiency and flexibility. DBE optimizes data transmission rates, coverage, and reliability by flexibly managing multi-band resources. With the diversification of Wi-Fi bands (such as 2.4GHz, 5GHz, and 6GHz), available channels may be discontinuous or partially occupied, making traditional fixed bandwidth (such as 20 / 40 / 80 / 160MHz) inefficient in utilizing fragmented spectrum. DBE allows devices to dynamically expand their operating bandwidth based on real-time channel conditions to match available spectrum resources and meet the dynamic adaptation needs of the network.

[0265] The core objectives of the DBE operating mode are as follows: Maximizing spectral efficiency: Combining the large bandwidth of high-frequency bands with the coverage advantages of low-frequency bands (2.4GHz / 5GHz / 6GHz). Dynamically adapting to the environment: Responding in real-time to channel changes (such as obstacle interference and congestion) and adjusting frequency band usage strategies. Enhancing user experience: Balancing high speed and connection stability to support high-density scenarios and emerging applications (such as AR / VR and holographic communication). Its key technologies include: Multi-band coordination: Dynamically allocating data to different frequency bands between the transmitter and receiver, for example, using low-frequency bands to maintain basic connections and high-frequency bands to transmit large volumes of data. Combining multi-link operation (MLO) to simultaneously use multiple frequency bands or channels to improve throughput. Adaptive channel management: Real-time monitoring of channel state information (CSI) and dynamically selecting the optimal frequency band combination and bandwidth; supporting flexible channel bonding to adapt to the short-range characteristics of high-frequency bands and reduce interference.

[0266] Currently, the DBE operation mode is in the early stages of discussion. The implementation of DBE operation may require the combination of the following key technologies:

[0267] Flexible Channel Bonding: 802.11bn supports dynamically bonding discontinuous or partially overlapping channels into wider channels (e.g., extending from 80MHz to 160MHz), whereas traditional standards require contiguous channels. Dynamic Bandwidth Negotiation: Access point devices and site devices negotiate the instantaneous bandwidth that their respective BSS devices can extend via signaling (e.g., management frames, trigger frames, or action frames). Based on signaling interaction, transmission bandwidth is adjusted in real time according to interference, load, or regulatory requirements (e.g., power limits in 6GHz). Multi-Link Collaboration: MLO technology can also be used to aggregate bandwidth across different frequency bands (e.g., 5GHz + 6GHz) to achieve logical bandwidth expansion.

[0268] In summary, the DBE operating mode maximizes channel bandwidth to improve system throughput by further extending the operating bandwidth of access point devices. For example, through coordination among multiple access points, control signaling enables the exchange of channel usage and load information between access points; the DBE mechanism identifies bandwidth expansion opportunities and adjusts bandwidth for eligible site devices, achieving seamless and low-interference bandwidth expansion; the DBE mechanism is particularly important for dense AP deployments and enterprise network deployments. The DBE operating mode utilizes fragmented spectrum, avoiding forced speed reduction due to partial channel obstruction, thereby improving spectrum efficiency. On the other hand, dynamic adjustment reduces channel contention, thus lowering transmission latency, making it particularly suitable for high-throughput, low-latency applications such as AR / VR. Furthermore, the DBE operating mode must be backward compatible, coexisting with existing legacy Wi-Fi devices to avoid conflicts.

[0269] Currently, the DBE operating mode is in its early stages, and many issues still need further refinement. For example, when both access point devices and site devices are operating in DBE mode, how to initiate frame exchange with peer devices, and how the access point device allocates RUs to its associated site devices, especially DBE sites, to achieve reasonable and effective utilization of spectrum resources.

[0270] Therefore, this disclosure proposes a communication method, communication device, and communication system to further improve and standardize the DBE operation process.

[0271] In some embodiments, when an Access Point Device (AP) initiates frame exchange with its associated Site Device (STA) in DBE operation mode, or triggers its associated STA to send uplink transmission, the AP directly allocates a RU (Remote Requirement) within the DBE bandwidth to the STA, where the RU is marked with reference to the BSS Primary channel; or, by pre-specifying the sub-channels within the DBE bandwidth for each STA supporting DBE mode, and then allocating RUs to the STA within the specified sub-channels; furthermore, when assigning channels or RUs, the AP carries padding data to ensure that the STA switches to the specified channel or RU within the required handover delay. Accordingly, the STA switches to the corresponding channel or RU to communicate with the AP. Based on the above method, the DBE operation process is further improved and standardized, interference between multi-user transmissions is reduced, and spectrum utilization efficiency, transmission efficiency, and throughput are improved.

[0272] In some embodiments, the access point device sends a first radio frame indicating that one or more receiving STAs switch from a first channel to a second channel, wherein the first radio frame includes, but is not limited to, at least one of the following:

[0273] First identification information: identifies the second channel, wherein the second channel bandwidth does not exceed that of the first channel. The first channel bandwidth is the operating bandwidth declared by the access point device in DBE mode, i.e., DBE BW;

[0274] Optionally, the second channel may be a channel consisting of one or more 20MHz channels;

[0275] Optionally, the second channel may be a RU within the bandwidth of the first channel; the RU uses the Primary 20MHz channel of the BSS where the AP is located as a reference channel;

[0276] Second identification information: indicating that the AP requires the receiving STA to send a second wireless frame via a third channel, wherein the third channel does not exceed the bandwidth of the first channel; wherein the second wireless frame is a response frame to the first wireless frame;

[0277] Optionally, the third channel may be a channel composed of one or more 20MHz channels, and may be a RU within the bandwidth of the first channel; the third channel may be the same channel as the second channel;

[0278] First Padding field: Used to extend the frame length of the first radio frame, so that the receiving STA has enough time to switch to the second channel after receiving the frame, in order to respond to the first radio frame.

[0279] The first Padding domain can be set according to the switching delay in DBE operation mode that each site device informs the access point device in advance, such as DBE Switch Delay or DBE Padding Delay.

[0280] In some embodiments, after receiving the first radio frame, the site device performs at least one of the following operations:

[0281] Step 2.1: Do not respond to the first radio frame;

[0282] Step 2.2: Within the first timeout period, send a second radio frame to the AP via the third channel and respond to the first radio frame.

[0283] In some embodiments, after the AP sends the first radio frame, it performs at least one of the following operations:

[0284] In step 2.1, if the second radio frame sent by the receiving STA is not received within the first timeout period, it is considered that the corresponding STA has not switched to the second channel. In this case, the AP can communicate with the corresponding STA within the second channel bandwidth. The second channel bandwidth is the channel bandwidth before expansion (BSS Operation BW).

[0285] In some embodiments, corresponding to 2.2, if a second radio frame is received from the receiving STA within the first timeout period, it is considered that the corresponding STA has switched to the second channel; in this case, the AP communicates with the corresponding STA through the second channel.

[0286] The following is an illustration through specific examples:

[0287] Example 1:

[0288] The AP sends a first radio frame to one or more STAs. The first radio frame may be an announcement or a notification frame, instructing one or more STAs to switch to a second channel consisting of one or more 20MHz sub-channels, wherein the second channel does not exceed the bandwidth of the first channel.

[0289] For example:

[0290] The BSS operating bandwidth is 80MHz, and the DBE operating bandwidth is 160MHz. STA1, STA2, STA3, and STA4 support DBE, with operating bandwidths of 20MHz, 40MHz, 40MHz, and 80MHz respectively. After enabling DBE mode, the AP can send a first radio frame indicating the second channel for each STA, for example... Figure 3Option 1 and Option 2:

[0291] In some embodiments, after receiving the first radio frame, the receiving STA switches to the second channel and then sends a second radio frame to the AP through the third channel within a first timeout period in response.

[0292] In some embodiments, the AP receives the at least one second radio frame or, after the first timeout period has elapsed, sends a first trigger frame, which allocates an RU to the receiving STA. The RU allocated to each STA is located within the second channel identified by the first radio frame.

[0293] Optionally, the first trigger frame is a MU-RTS trigger frame or a BSRP trigger frame.

[0294] For example, in Figure 3 In the Option 1 example, the AP has the following restrictions on the number of RUs allocated to each STA:

[0295] STA1 is assigned an RU located in the Primary 20MHz sub-channel;

[0296] STA2 is assigned an RU located in the Primary 40MHz sub-channel;

[0297] STA3 is assigned an RU located in the Secondary 40MHz sub-channel;

[0298] STA4 is assigned an RU located in the Secondary 80MHz (i.e., extended 80MHz) sub-channel;

[0299] Example 2:

[0300] In some embodiments, the AP sends a first radio frame to one or more STAs to initiate frame exchange with the STAs or to trigger the one or more STAs to send an uplink PPDU; wherein the first radio frame indicates a second channel through which the one or more STAs communicate with the AP;

[0301] For example:

[0302] After obtaining a TXOP, the AP sends an MU-RTS Trigger frame or a BSRP Trigger frame to one or more STAs to initiate frame exchange with them, or triggers one or more STAs to send an uplink PPDU. The RU field of the MU-RTS Trigger frame or BSRP Trigger frame carries the RUs allocated by the AP to each STA. The Padding field sets the length to ensure that each STA switches to the corresponding subchannel / RU. For example, the BSS operating bandwidth is 80MHz, and the DBE operating bandwidth is 160MHz. There are legacy STA1 and STA2 with operating bandwidths of 20MHz and 40MHz respectively, and STA3 and STA4, which support DBE, with operating bandwidths of 40MHz and 80MHz respectively. The RU field of the AP MU-RTS Trigger frame or BSRP Trigger frame carrying the RUs allocated by the AP to each STA can be:

[0303] STA1 is assigned an RU located in the Primary 20MHz sub-channel;

[0304] STA2 is assigned an RU located in the Primary 40MHz sub-channel;

[0305] STA3 is assigned an RU located in the Secondary 40MHz sub-channel;

[0306] STA4 is assigned an RU located in the Secondary 80MHz (i.e., extended 80MHz) sub-channel;

[0307] After receiving the first radio frame, the receiving STA, after an interval of SIFS, sends a CTS frame through the RU allocated by the AP in response to the MU-RTS Trigger frame or an M-STA BA frame in response to the BSRP Trigger frame.

[0308] After the first timeout period expires, the AP determines whether the MU-RTS Trigger frame or BSRP Trigger frame was successfully sent based on the received response frame; if at least one response frame is received, the AP considers the MU-RTS Trigger frame or BSRP Trigger frame to have been successfully sent; after receiving the response frame, the AP communicates with the STA that responded to the response frame through the RU allocated by the MU-RTS Trigger frame or BSRP Trigger frame.

[0309] This disclosure proposes a communication method, communication device, and communication system. Based on the method, the DBE operation process is further improved and standardized, reducing interference between multi-user transmissions and increasing spectrum utilization efficiency, transmission efficiency, and throughput.

[0310] This disclosure also proposes an apparatus (also referred to as a communication device, etc.) for implementing any of the above methods. For example, an apparatus is proposed that includes units or modules for implementing the steps performed by the terminal in any of the above methods. Furthermore, another apparatus is proposed that includes units or modules for implementing the steps performed by a network device (e.g., an access network device, a core network functional node, a core network device, etc.) in any of the above methods.

[0311] It should be understood that the division of units or modules in the above device is only a logical functional division. In actual implementation, they can be fully or partially integrated into a single physical entity, or they can be physically separated. Furthermore, the units or modules in the device can be implemented by a processor calling software: for example, the device includes a processor connected to a memory containing instructions. The processor calls the instructions stored in the memory to implement any of the above methods or to implement the functions of the units or modules in the above device. The processor can be, for example, a general-purpose processor, such as a Central Processing Unit (CPU) or a microprocessor, and the memory can be internal or external to the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits. The functionality of some or all of the units or modules can be achieved through the design of these hardware circuits, which can be understood as one or more processors. For example, in one implementation, the hardware circuit is an application-specific integrated circuit (ASIC). The functionality of some or all of the units or modules is achieved through the design of the logical relationships between the components within the circuit. In another implementation, the hardware circuit can be implemented using a programmable logic device (PLD). Taking a field-programmable gate array (FPGA) as an example, it can include a large number of logic gates. The connection relationships between the logic gates are configured through configuration files, thereby achieving the functionality of some or all of the units or modules. All units or modules of the above device can be implemented entirely through processor-called software, entirely through hardware circuits, or partially through processor-called software with the remaining parts implemented through hardware circuits.

[0312] In this embodiment, the processor is a circuit with signal processing capabilities. In one implementation, the processor can be a circuit with instruction read and execute capabilities, such as a Central Processing Unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP). In another implementation, the processor can implement certain functions through the logical relationships of hardware circuits. The logical relationships of the aforementioned hardware circuits are fixed or reconfigurable. For example, the processor is a hardware circuit implemented using an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document and configuring the hardware circuit can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. In addition, it can also be hardware circuits designed for artificial intelligence, which can be understood as ASICs, such as Neural Network Processing Units (NPUs), Tensor Processing Units (TPUs), and Deep Learning Processing Units (DPUs).

[0313] Figure 8 This is a schematic diagram of the structure of the AP proposed in an embodiment of this disclosure. The AP is used to perform any of the above methods. In some embodiments, such as Figure 8 As shown, AP 800 may include at least one of the following: determination module 801, transmission module 802, etc.

[0314] In some embodiments, the determining module 801 is configured to determine a first radio frame; the first radio frame instructs at least one site device (STA) to switch from a first channel to a corresponding second channel; wherein the bandwidth of the first channel is the operating bandwidth DBE BW of the AP after expansion in Dynamic Bandwidth Extension (DBE) mode; the second channel is the channel resource within the DBE BW; and the transmitting module 802 is configured to transmit the first radio frame.

[0315] Optionally, the determining module 801 is used to perform at least one of the communication steps (e.g., steps 201, 401, 501, and 601, but not limited thereto) performed by AP101 in any of the above methods, which will not be described in detail here. The sending module 602 is used to perform at least one of steps 202, 402, 502, and 602, which will not be described in detail here.

[0316] In some embodiments, the determining module can be replaced by the processing module or the processor, and the sending module can be replaced by the transceiver module or the transceiver.

[0317] Figure 9 This is a schematic diagram of the structure of the STA proposed in an embodiment of this disclosure. The STA is used to perform any of the above methods. In some embodiments, such as Figure 9 As shown, STA 900 may include: a receiving module 901.

[0318] In some embodiments, the receiving module 901 is configured to receive a first radio frame sent by the AP; the first radio frame indicates that at least one STA switches from a first channel to a corresponding second channel.

[0319] Wherein, the bandwidth of the first channel is the extended operating bandwidth DBE BW of the AP in DBE mode; the second channel is the channel resource within the DBE BW.

[0320] Optionally, the receiving module 901 is used to perform at least one of the communication steps performed by STA 102 in any of the above methods (e.g., steps 203, 403, 503, 701, but not limited thereto), which will not be described in detail here.

[0321] In some embodiments, the receiving module can be interchanged with the transceiver module or transceiver.

[0322] Figure 10 This is a schematic diagram of the structure of a terminal 1000 (e.g., a user equipment) proposed in an embodiment of this disclosure. The terminal 1000 may be a chip, chip system, or processor that supports network devices in implementing any of the above methods, or it may be a chip, chip system, or processor that supports a terminal in implementing any of the above methods. The terminal 1000 can be used to implement the methods described in the above method embodiments; for details, please refer to the descriptions in the above method embodiments.

[0323] like Figure 10As shown, terminal 1000 includes one or more processors 1001. Processor 1001 can be a general-purpose processor or a dedicated processor, such as a baseband processor or a central processing unit (CPU). The baseband processor can be used to process communication protocols and communication data, while the CPU can be used to control communication devices (e.g., base stations, baseband chips, terminal devices, terminal device chips, DUs or CUs, etc.), execute programs, and process program data. Terminal 1000 is used to execute any of the above methods.

[0324] In some embodiments, the terminal 1000 further includes one or more memories 1002 for storing instructions. Optionally, all or part of the memories 1002 may be located outside the terminal 1000.

[0325] In some embodiments, the terminal 1000 further includes one or more transceivers 1004. When the terminal 1000 includes one or more transceivers 1004, the transceivers 1004 perform at least one of the communication steps such as sending and / or receiving in the above method (e.g., steps 202, 203, 402, 403, 404, 405, 406, 407, 502, 503, 504, 505, 602, 603, 701, but not limited thereto), and the processor 1001 performs at least one of other steps (e.g., steps 201, 401, 501, 601, but not limited thereto).

[0326] In some embodiments, a transceiver may include a receiver and / or a transmitter, which may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, transceiver circuit, etc., may be used interchangeably; the terms transmitter, transmitting unit, transmitter, transmitting circuit, etc., may be used interchangeably; and the terms receiver, receiving unit, receiver, receiving circuit, etc., may be used interchangeably.

[0327] In some embodiments, terminal 1000 may include one or more interface circuits 1003. Optionally, interface circuit 1003 is connected to memory 1002, and interface circuit 1003 can be used to receive signals from memory 1002 or other devices, and can be used to send signals to memory 1002 or other devices. For example, interface circuit 1003 can read instructions stored in memory 1002 and send the instructions to processor 1001.

[0328] The terminal 1000 described in the above embodiments may be a communication device such as a user equipment, but the scope of the terminal 1000 described in this disclosure is not limited thereto, and the structure of the terminal 1000 may vary. Figure 10The limitations. The communication device can be a standalone device or part of a larger device. For example, the communication device can be: (1) a standalone integrated circuit IC, or chip, or chip system or subsystem; (2) a collection of one or more ICs, optionally including storage components for storing data and programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, terminal device, smart terminal device, cellular phone, wireless device, handheld device, mobile unit, vehicle device, network device, cloud device, artificial intelligence device, etc.; (6) others, etc.

[0329] Figure 11 This is a schematic diagram of the structure of chip 1100 according to an embodiment of this disclosure. For cases where terminal 1000 can be a chip or a chip system, please refer to... Figure 11 The diagram shown is a schematic representation of the structure of chip 1100, but it is not limited to this.

[0330] Chip 1100 includes one or more processors 1101, which are used to perform any of the above methods.

[0331] In some embodiments, chip 1100 further includes one or more 1103s. Optionally, interface circuitry 1103 is connected to memory 1102. Interface circuitry 1103 can be used to receive signals from memory 1102 or other devices, and interface circuitry 1103 can be used to send signals to memory 1102 or other devices. For example, interface circuitry 1103 can read instructions stored in memory 1102 and send the instructions to processor 1101.

[0332] In some embodiments, the interface circuit 1103 performs at least one of the communication steps such as sending and / or receiving in the above method (e.g., steps 202, 203, 402, 403, 404, 405, 406, 407, 502, 503, 504, 505, 602, 603, 701, but not limited thereto), and the processor 1101 performs at least one of other steps (e.g., steps 201, 401, 501, 601, but not limited thereto).

[0333] In some embodiments, the terms interface circuit, interface, transceiver pin, transceiver, etc., can be used interchangeably.

[0334] In some embodiments, chip 1100 further includes one or more memories 1102 for storing instructions. Optionally, all or part of the memories 1102 may be located outside of chip 1100.

[0335] This disclosure also proposes a storage medium storing instructions that, when executed on terminal 1000, cause terminal 1000 to perform any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but not limited thereto; it may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but not limited thereto; it may also be a temporary storage medium.

[0336] This disclosure also proposes a program product that, when executed by terminal 1000, causes terminal 1000 to perform any of the above methods. Optionally, the program product is a computer program product.

[0337] This disclosure also proposes a computer program that, when run on a computer, causes the computer to perform any of the above methods.

Claims

1. A communication method applied to an access point device (AP), characterized in that, include: Determine the first radio frame; The first radio frame instructs at least one site device (STA) to switch from the first channel to the corresponding second channel; Wherein, the bandwidth of the first channel is the operating bandwidth DBEBW of the AP after expansion in the Dynamic Bandwidth Extension (DBE) mode; the second channel is the channel resource within the DBE BW; Send the first wireless frame.

2. The communication method according to claim 1, characterized in that, The first radio frame includes first identification information; wherein the first identification information identifies the second channel corresponding to each STA; The second channel includes at least one 20MHz sub-channel, or the second channel is a resource unit (RU) within the DBE BW, wherein the RU is identified by using the 20MHz primary channel within the basic service set (BSS) where the AP is located as a reference channel.

3. The communication method according to claim 2, characterized in that, The first wireless frame also includes: second identification information; Wherein, the second identification information identifies: the third channel through which the AP receives the second wireless frame sent by the STA; wherein, the second wireless frame is used in response to the first wireless frame, and the third channel is the same as or different from the second channel.

4. The communication method according to claim 3, characterized in that, The third channel includes at least one 20MHz sub-channel, or the third channel is a resource unit (RU) within the DBE BW, and the RU is identified by using the 20MHz main channel within the BSS where the AP is located as a reference channel.

5. The communication method according to claim 3 or 4, characterized in that, The method further includes: After the first identification information identifies the second channel corresponding to each STA, which consists of at least one 20MHz sub-channel, and the AP receives at least one second radio frame or after the first timeout period has elapsed, the AP sends a third radio frame. The third radio frame includes the RU allocated by the AP to the corresponding STA; wherein the RU is located in the second channel.

6. The communication method according to any one of claims 1 to 5, characterized in that, The first wireless frame further includes: at least one first identification field; The first identifier field is used to extend the frame length of the first radio frame, so that each STA has time to respond to the first radio frame.

7. The communication method according to claim 6, characterized in that, The extended frame length of the first radio frame covers the first duration required for each STA to switch from the first channel to the corresponding second channel.

8. The communication method according to claim 7, characterized in that, The method further includes: Receive a fourth radio frame sent by the at least one STA; wherein the fourth radio frame includes the first duration.

9. A communication method applied to a STA, characterized in that, include: Receive the first wireless frame sent by the AP; The first radio frame instructs at least one STA to switch from the first channel to the corresponding second channel; Wherein, the bandwidth of the first channel is the extended operating bandwidth DBE BW of the AP in DBE mode; the second channel is the channel resource within the DBE BW.

10. The communication method according to claim 9, characterized in that, The first radio frame includes first identification information; wherein the first identification information identifies the second channel; The second channel includes at least one 20MHz sub-channel, or the second channel is a resource unit (RU) within the DBE BW, and the RU is identified by using the 20MHz main channel within the BSS where the AP is located as a reference channel.

11. The communication method according to claim 9 or 10, characterized in that, The first wireless frame also includes: second identification information; Wherein, the second identification information identifies: the third channel through which the AP receives the second wireless frame sent by the STA; wherein, the second wireless frame is used in response to the first wireless frame, and the third channel is the same as or different from the second channel.

12. The communication method according to claim 11, characterized in that, The method further includes: The second radio frame is sent to the AP via the third channel within the first timeout period.

13. The communication method according to claim 10, characterized in that, When the first identification information identifies a second channel consisting of at least one 20MHz sub-channel corresponding to each STA, the method further includes: The third radio frame sent by the AP is received; wherein the third radio frame includes the RU allocated by the AP to the corresponding STA; wherein the RU is located in the second channel.

14. The communication method according to any one of claims 9 to 13, characterized in that, The first wireless frame further includes: at least one first identification field; The first identifier field is used to extend the frame length of the first radio frame, so that each STA has time to respond to the first radio frame.

15. The communication method according to claim 14, characterized in that, The extended frame length of the first radio frame covers the first duration required for each STA to switch from the first channel to the corresponding second channel.

16. The communication method according to claim 15, characterized in that, The method further includes: A fourth radio frame is sent to the AP; wherein the fourth radio frame includes the first duration.

17. A communication device, wherein the communication device is an access point (AP), characterized in that, include: One or more processors; The AP is used to perform the communication method according to any one of claims 1 to 8.

18. A communication device, wherein the communication device is a STA, characterized in that, include: One or more processors; The STA is used to perform the communication method according to any one of claims 9 to 16.

19. A communication system, characterized in that, Including AP and STA; The AP is configured to determine a first radio frame; the first radio frame instructs at least one site device (STA) to switch from a first channel to a corresponding second channel; wherein the bandwidth of the first channel is the extended operating bandwidth (DBE BW) of the AP in Dynamic Bandwidth Extension (DBE) mode; the second channel is the channel resource within the DBE BW; and the first radio frame is transmitted. The STA is configured to receive the first wireless frame sent by the AP.

20. A storage medium storing instructions, characterized in that, When the instructions are executed on the communication device, the communication device performs the communication method as described in any one of claims 1 to 8, or performs the communication method as described in any one of claims 9 to 16.

21. A program product comprising at least one of a program and instructions, characterized in that, When at least one of the programs or instructions is executed by a communication device, it implements the communication method of any one of claims 1 to 8, or the communication method of any one of claims 9 to 16.

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