Communication method, communication device, and communication system

Abstract

Embodiments of the present disclosure relate to a communication method, a communication device, and a communication system. The communication method comprises: during initial association with a second device or during multi-link establishment, determining a first radio frame, wherein the first radio frame comprises first identification information, and the first identification information identifies whether a first device supports distributed resource unit (dRU) transmission when the first device is a device that supports only a 20 MHz communication bandwidth; and sending the first radio frame. The first device can identify, by means of the first identification information in the first radio frame, whether the first device supporting only a 20 MHz communication bandwidth supports dRU transmission, thereby increasing the transmission distance of the system and improving the reliability, and meeting UHR requirements.

Description

Communication method, communication device and communication system TECHNICAL FIELD

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

[0002] Currently, the contents researched by Wi-Fi technology, such as Ultra High Reliability (UHR), have the 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, in order to improve the communication transmission distance, a distributed Resource Unit (dRU) is proposed. Therefore, it is necessary to perfect the application of dRU in UHR to meet the transmission requirements of UHR.

[0004] SUMMARY

[0005] Embodiments of the present disclosure provide a communication method, a communication device and a communication system to perfect the application of dRU in UHR.

[0006] In one aspect, the embodiments of the present disclosure provide a communication method applied to a first device, and the method comprises:

[0007] In an initial association process or a multi-link establishment process with a second device, a first wireless frame is determined; the first wireless frame comprises first identification information; the first identification information identifies whether the first device supports dRU transmission when the first device is a device supporting only 20MHz communication bandwidth.

[0008] The first wireless frame is sent.

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

[0010] In an initial association process or a multi-link establishment process with a first device, a first wireless frame sent by the first device is received; the first wireless frame comprises first identification information; the first identification information identifies whether the first device supports dRU transmission when the first device is a device supporting only 20MHz communication bandwidth.

[0011] In another aspect, the embodiments of the present disclosure further provide a communication device, which is a first device, comprising:

[0012] a determining module configured to determine a first radio frame in an initial association procedure or a multi-link establishment procedure with a second device; the first radio frame comprises first identification information; the first identification information indicates whether the first device supports distributed resource unit (dRU) transmission when the first device is a device supporting only 20MHz communication bandwidth.

[0013] a sending module configured to send the first radio frame.

[0014] In another aspect, the embodiments of the present disclosure further provide a communication device, which is a second device, comprising:

[0015] a receiving module configured to receive a first radio frame sent by a first device in an initial association procedure or a multi-link establishment procedure with the first device; the first radio frame comprises first identification information; the first identification information indicates whether the first device supports dRU transmission when the first device is a device supporting only 20MHz communication bandwidth.

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

[0017] one or more processors;

[0018] The first device is configured to perform the communication method described in the embodiments of the present disclosure.

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

[0020] one or more processors;

[0021] The second device is configured to perform the communication method described in the embodiments of the present disclosure.

[0022] The embodiments of the present disclosure further provide a communication system comprising a first device and a second device.

[0023] The first device determines a first radio frame in an initial association procedure or a multi-link establishment procedure with the second device; the first radio frame comprises first identification information; the first identification information indicates whether the first device supports distributed resource unit (dRU) transmission when the first device is a device supporting only 20MHz communication bandwidth; and the first device sends the first radio frame.

[0024] The second device receives the first wireless frame sent by the first device in an initial association process or a multi-link establishment process with the first device; the first wireless frame comprises first identification information; the first identification information identifies whether the first device supports dRU transmission when the first device is a device supporting only a 20MHz communication bandwidth.

[0025] The communication method is used for a communication device, and the communication device comprises a communication interface and a processor.

[0026] In the embodiment of the present disclosure, in an initial association process or a multi-link establishment process with a second device, a first wireless frame is determined; the first wireless frame comprises first identification information; the first identification information identifies whether the first device supports distributed resource unit (dRU) transmission when the first device is a device supporting only a 20MHz communication bandwidth; and the first wireless frame is sent. Through the first identification information in the first wireless frame, the first device can identify whether the first device supporting only a 20MHz communication bandwidth supports dRU transmission, the transmission distance and reliability of the system are improved, and the UHR requirement is met.

[0027] Additional aspects and advantages of the embodiments of the present disclosure will be given in part in the following description, and will become apparent from the following description, or will be learned by practice of the present disclosure. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following describes the drawings required for the embodiment description. The following drawings are only some embodiments of the present disclosure, and do not specifically limit the protection scope of the present disclosure.

[0029] FIG. 1 is one exemplary schematic diagram of an architecture of a communication system according to an embodiment of the present disclosure;

[0030] FIG. 2 is one exemplary interactive schematic diagram of a method according to an embodiment of the present disclosure;

[0031] FIG. 3 is one flow schematic diagram of a communication method according to an embodiment of the present disclosure;

[0032] FIG. 4 is another flow schematic diagram of a communication method according to an embodiment of the present disclosure;

[0033] FIG. 5 is a structural schematic diagram of a first device according to an embodiment of the present disclosure;

[0034] FIG. 6 is a structural schematic diagram of a second device according to an embodiment of the present disclosure;

[0035] FIG. 7 is a structural schematic diagram of a terminal according to an embodiment of the present disclosure;

[0036] FIG. 8 is a structural schematic diagram of a chip according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0037] The embodiments of the present disclosure provide a communication method, a communication device and a communication system.

[0038] In a first aspect, the embodiments of the present disclosure provide a communication method applied to a first device, and the method comprises:

[0039] In an initial association process or a multi-link establishment process with a second device, a first radio frame is determined; the first radio frame comprises first identification information; the first identification information indicates whether the first device supports distributed resource unit (dRU) transmission when the first device is a device supporting only 20MHz communication bandwidth.

[0040] The first radio frame is sent.

[0041] In the above embodiments, the first device can identify whether the first device supporting only 20MHz communication bandwidth supports dRU transmission through the first identification information in the first radio frame, so as to improve the transmission distance and reliability of the system and meet the UHR requirement.

[0042] In some embodiments in combination with the first aspect, the first radio frame further comprises second identification information, and the second identification information indicates whether the first device is a device supporting only 20MHz communication bandwidth.

[0043] In the above embodiments, the second identification information in the first radio frame clearly indicates the communication characteristics of the first device, helping the second device to accurately understand the communication capability of the first device.

[0044] In some embodiments in combination with the first aspect, the second identification information is carried in an operation capabilities information element or other information element of the first radio frame; and / or

[0045] The first identification information is carried in a 20-MHz-only dRU support identification bit in an ultra-high reliability capability (UHR capabilities) information element of the first radio frame.

[0046] In the above embodiments, the second identification information is carried in the operation capabilities, or the first identification information is carried in the 20-MHz-only dRU support identification bit in the UHR capabilities information element, so that additional information load is avoided in the first wireless frame. By using the existing information element to deliver the identification information, communication overhead is reduced and communication efficiency is improved.

[0047] In some embodiments of the first aspect, in some embodiments, the UHR capabilities information element further comprises a first identification bit.

[0048] The first identification bit identifies whether the first device supports receiving a null data packet (NDP) frame under a first communication bandwidth; wherein the first communication bandwidth is higher than 20 MHz.

[0049] In the above embodiments, through the setting of the first identification bit, the first device can receive the NDP frame using dRU transmission under a large bandwidth (40 MHz, 80 MHz, 160 MHz) although it only supports a 20 MHz communication bandwidth. This can provide more detailed channel state information and improve network optimization accuracy.

[0050] In some embodiments of the first aspect, in some embodiments, the UHR capabilities information element further comprises a second identification bit.

[0051] The second identification bit identifies the support capability of the first device for 40 MHz physical layer protocol data unit (PPDU), 80 MHz PPDU or 160 MHz PPDU when using dRU transmission.

[0052] In the above embodiments, the second identification bit explicitly indicates the transmission capability of the device under a high bandwidth, which helps the network to effectively optimize and manage the channel under a high load or high interference environment, and improves the communication stability.

[0053] In some embodiments of the first aspect, in some embodiments, the support capability comprises a receiving capability and / or a sending capability.

[0054] The receiving capability comprises the capability of receiving 40 MHz multi-user physical layer protocol data unit (MU PPDU), 80 MHz MU PPDU or 160 MHz MU PPDU using different dRU formats.

[0055] The sending capability includes a capability of sending a 40MHz trigger-based physical layer protocol data unit (TB PPDU), an 80MHz TB PPDU, or a 160MHz TB PPDU under different dRU format allocations.

[0056] The dRU format includes at least one of a 26-tone, 52-tone, 106-tone, and 242-tone dRU.

[0057] In the above embodiments, by including detailed 40MHz, 80MHz, and 160MHz PPDU receiving and sending capability information in the UHR capabilities information element, network measurement accuracy and optimization effect can be significantly improved, network adaptability and flexibility can be enhanced, communication performance and stability can be improved, and network management and configuration can be simplified. This design can fully utilize existing network resources, and achieve more efficient, stable, and flexible wireless network management.

[0058] In a second aspect, the embodiments of the present disclosure provide a communication method applied to a second device, and the method comprises:

[0059] In an initial association process or a multi-link establishment process with a first device, a first wireless frame sent by the first device is received; the first wireless frame includes first identification information; and the first identification information identifies whether the first device supports dRU transmission when the first device is a device supporting only a 20MHz communication bandwidth.

[0060] In combination with some embodiments of the second aspect, in some embodiments, the first wireless frame further includes second identification information, and the second identification information identifies whether the first device is a device supporting only a 20MHz communication bandwidth.

[0061] In combination with some embodiments of the second aspect, in some embodiments, the second identification information is carried in an operation capability (operation capabilities) information element or other information element of the first wireless frame; and / or

[0062] The first identification information is carried in a 20-MHz-only dRU support identification bit in an ultra-high reliability capability (UHR capabilities) information element of the first wireless frame.

[0063] In combination with some embodiments of the second aspect, in some embodiments, the UHR capabilities information element further includes a first identification bit.

[0064] The first identification bit indicates whether the first device supports receiving a null data packet (NDP) frame at a first communication bandwidth; and the first communication bandwidth is higher than 20 MHz.

[0065] In some embodiments of the second aspect, the UHR capabilities information element further includes a second identification bit.

[0066] The second identification bit indicates a support capability of the first device for a 40 MHz physical layer protocol data unit (PPDU), an 80 MHz PPDU or a 160 MHz PPDU when using dRU transmission.

[0067] In some embodiments of the second aspect, the support capability includes a receiving capability and / or a transmitting capability.

[0068] The receiving capability includes a capability of receiving a 40 MHz multi-user physical layer protocol data unit (MU PPDU), an 80 MHz MU PPDU or a 160 MHz MU PPDU mapped using different dRU formats.

[0069] The transmitting capability includes a capability of transmitting a 40 MHz trigger-based physical layer protocol data unit (TB PPDU), an 80 MHz TB PPDU or a 160 MHz TB PPDU under different dRU format allocation.

[0070] The dRU format includes at least one of the following: a 26-tone dRU, a 52-tone dRU, a 106-tone dRU and a 242-tone dRU.

[0071] In a third aspect, the embodiments of the present disclosure further provide a communication device, which is a first device, and includes at least one of a determining module and a sending module; and the first device is configured to perform the optional implementation manners of the first aspect.

[0072] In a fourth aspect, the embodiments of the present disclosure further provide a communication device, which is a second device, and includes a receiving module; and the second device is configured to perform the optional implementation manners of the second aspect.

[0073] In a fifth aspect, the embodiments of the present disclosure further provide a communication device, which is a first device, and includes:

[0074] one or more processors;

[0075] The first device is configured to perform the optional implementation manners of the first aspect.

[0076] In a sixth aspect, the embodiments of the present disclosure further provide a communication device, the communication device being a second device, comprising:

[0077] one or more processors;

[0078] The second device is configured to perform the optional implementation manners of the second aspect.

[0079] In a seventh aspect, the embodiments of the present disclosure further provide a communication system, comprising a first device and a second device; wherein the first device determines a first radio frame in an initial association process or a multi-link establishment process with the second device; the first radio frame comprises first identification information; the first identification information indicates whether the first device supports dRU transmission when the first device is a device supporting only 20MHz communication bandwidth; and the first device transmits the first radio frame.

[0080] The second device receives the first radio frame transmitted by the first device in an initial association process or a multi-link establishment process with the first device; the first radio frame comprises first identification information; and the first identification information indicates whether the first device supports dRU transmission when the first device is a device supporting only 20MHz communication bandwidth.

[0081] In an eighth aspect, the embodiments of the present disclosure further provide a storage medium, the storage medium storing instructions, when the instructions are executed on a communication device, causing the communication device to perform the optional implementation manners of the first aspect and the second aspect.

[0082] In a ninth aspect, the embodiments of the present disclosure provide a program product, when the program product is executed on a communication device, causing the communication device to perform the method described in the optional implementation manners of the first aspect and the second aspect.

[0083] In a tenth aspect, the embodiments of the present disclosure provide a computer program, when the computer program is executed on a computer, causing the computer to perform the method described in the optional implementation manners of the first aspect and the second aspect.

[0084] In an eleventh aspect, the embodiments of the present disclosure provide a chip or a chip system. The chip or the chip system comprises processing circuitry configured to perform the method described in the optional implementation manners of the first aspect and the second aspect.

[0085] It can be understood that the above-mentioned first device, second device, communication system, storage medium, program product, computer program, chip or chip system are all used to perform the method proposed in the embodiments of the present disclosure. Therefore, the beneficial effects that can be achieved are referred to the beneficial effects in the corresponding method, which will not be described here.

[0086] The embodiments of the present disclosure provide a communication method, a communication device and a communication system. In some embodiments, the communication method and the signal sending method, the wireless frame sending method and the like can be replaced with each other, and the information processing system and the communication system and the like can be replaced with each other.

[0087] The embodiments of the present disclosure are not exhaustive, but are only schematic of some embodiments, and are not specific limitations on the protection scope of the present disclosure. In the case of no contradiction, each step in an embodiment can be implemented as an independent embodiment, and the steps can be combined arbitrarily, for example, the scheme after removing some steps in an embodiment can also be implemented as an independent embodiment, and the order of the steps in an embodiment can be exchanged arbitrarily, in addition, the optional implementation manners in an embodiment can be combined arbitrarily; in addition, the embodiments can be combined arbitrarily, for example, the steps of different embodiments or part of the steps of different embodiments can be combined arbitrarily, an embodiment can be combined with the optional implementation manners of other embodiments arbitrarily.

[0088] In the embodiments of the present disclosure, the terms and / or descriptions between the embodiments are consistent and can be referred to each other if there is no special description and logical conflict, and the technical features in different embodiments can be combined to form new embodiments according to their inherent logical relationship.

[0089] The terms used in the embodiments of the present disclosure are only for the purpose of describing specific embodiments, and not as a limitation on the present disclosure.

[0090] In the embodiments of the present disclosure, "a plurality of" refers to two or more.

[0091] In some embodiments, the terms "at least one of", "one or more", "a plurality of", "multiple" and the like can be replaced with each other.

[0092] In some embodiments, the description mode of "at least one of A and B", "A and / or B", "A in one case and B in another case", "A in response to one case and B in response to another case" and the like can include the following technical solutions according to the case: in some embodiments, A is executed regardless of B; in some embodiments, B is executed regardless of A; in some embodiments, A and B are selectively executed; in some embodiments, A and B are executed. When there are more branches of A, B, C and the like, it is similar to the above.

[0093] In some embodiments, the expression "A or B" and the like can include the following technical solutions according to the situation: in some embodiments, A is executed independently of B; in some embodiments, B is executed independently of A; in some embodiments, A and B are selectively executed (A and B are selectively executed). When there are more branches such as A, B, and C, the above description is similar.

[0094] In the embodiments of the present disclosure, the prefix words "first", "second", and the like are only used to distinguish different description objects, and do not constitute limitations on the position, order, priority, quantity, or content of the description objects. The description of the description objects should be understood according to the description in the context of the claims or embodiments, and should not be limited by the prefix words. For example, the description object is "field", and the ordinal numbers before "field" in "first field" and "second field" do not limit the position or order between "fields". "First" and "second" do not limit whether the "fields" they modify are in the same message, nor do they limit the order of "first field" and "second field". For another example, the description object is "level", and the ordinal numbers before "level" in "first level" and "second level" do not limit the priority between "levels". For another example, the quantity of the description object is not limited by the ordinal number, and can be one or more. For example, "first device", where the quantity of "device" can be one or more. In addition, the objects modified by different prefix words can be the same or different. For example, the description object is "device", and "first device" and "second device" can be the same device or different devices, and their types can be the same or different. For another example, the description object is "information", and "first information" and "second information" can be the same information or different information, and their contents can be the same or different.

[0095] In some embodiments, "including A", "containing A", "for indicating A", and "carrying A" can be interpreted as directly carrying A or indirectly indicating A.

[0096] In some embodiments, the terms "in response to", "in response to determining", "in the case of", "when", "when", "if", and the like can be replaced with each other.

[0097] 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", "above", and the like can be replaced with each other. 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", "below", and the like can be replaced with each other.

[0098] In some embodiments, the apparatuses and devices can be interpreted as entities, and can also be interpreted as virtual, the names of which are not limited to the names described in the embodiments, and in some cases can also be understood as "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", "subject", and the like.

[0099] In some embodiments, the data, information, and the like can be obtained in compliance with the laws and regulations of the country where the location is located.

[0100] In some embodiments, the data, information, and the like can be obtained after obtaining the consent of the user.

[0101] In addition, each element, each row, or each column in the table of the embodiments of the present disclosure can be implemented as an independent embodiment, and any combination of any element, any row, and any column can also be implemented as an independent embodiment.

[0102] FIG. 1 is an architecture schematic diagram of a communication system according to an embodiment of the present disclosure.

[0103] As shown in FIG. 1, the communication system 100 includes a first device 101 and a second device 102. Among them, the first communication device can be a station device (Station, STA); the second communication device can be an access point device (Access Point, AP).

[0104] Optionally, in the embodiments of the present disclosure, the AP and the STA can be devices supporting multi-connection, for example, can be respectively denoted as an access point multi-link device (Access Point Multi-Link Device, AP MLD) and a non-access point multi-link device (non-Access Point Multi-Link Device, non-AP MLD); the AP MLD can represent an access point supporting a multi-connection communication function, and the non-AP MLD can represent a station supporting a multi-connection communication function.

[0105] In some embodiments, the first device 101 includes, for example, a wireless communication chip, a wireless sensor, or a wireless communication terminal supporting WiFi communication. Optionally, the wireless communication terminal is at least one of a mobile phone, a wearable device, an Internet of Things (IoT) device supporting WiFi communication, a WiFi communication-capable automobile, a smart automobile, a tablet (Pad), a computer with wireless transceiver function, 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 smart grid, a wireless terminal device in transportation safety, a wireless terminal device in smart city, a wireless terminal device in smart home, and the like, but is not limited thereto.

[0106] In particular, the first device 101 can be a terminal device or a network device with a wireless fidelity (WiFi) chip. Optionally, the first device 101 can support multiple WLAN standards such as 802.11ax, 802.11be, 802.11ac, 802.11n, 802.11g, 802.11b, 802.11a, 802.11bf, 802.11bn, and the like, and the next generation 802.11 protocol, but is not limited thereto.

[0107] In some embodiments, the second device 102 can be an access point (AP) for a mobile terminal to access a wired network. The AP serves as a bridge connecting the wired network and the wireless network, and its main function is to connect various wireless network clients together and then access the Ethernet network through the wireless network. In particular, the AP can be a terminal device or a network device with a wireless fidelity chip. Optionally, the AP can support multiple WLAN standards such as 802.11ax, 802.11be, 802.11ac, 802.11n, 802.11g, 802.11b, 802.11a, 802.11bf, 802.11bn, and the like, and the next generation 802.11 protocol, but is not limited thereto.

[0108] It can be understood that the communication system described in the embodiments of the present disclosure is for more clearly illustrating the technical solutions of the embodiments of the present disclosure, and does not constitute a limitation on the technical solutions proposed by the embodiments of the present disclosure. Those skilled in the art can know that, with the evolution of system architecture and the appearance of new business scenarios, the technical solutions proposed by the embodiments of the present disclosure are also applicable to similar technical problems.

[0109] The embodiments of the present disclosure described below can be applied to the communication system 100 shown in FIG. 1 or part of the subject, but are not limited thereto. The subjects shown in FIG. 1 are exemplary, and the communication system can include all or part of the subjects in FIG. 1, or other subjects other than FIG. 1. The number and form of each subject is arbitrary, each subject can be physical or virtual, the connection relationship between each subject is exemplary, each subject can not be connected or can be connected, and the connection can be in any way, can be direct connection or indirect connection, can be wired connection or wireless connection.

[0110] The embodiments of the present disclosure can be applied to a wireless local area network (WLAN), such as a local area network using 802.11 series protocols. In a WLAN, a basic service set (BSS) is a basic component of a WLAN. A BSS network is composed of station devices having some association within a certain coverage area. One situation of association is that stations directly communicate with each other in an ad hoc network, which is called an independent BSS (IBSS). Another more common situation is that in a BSS network, there is only one central station with a full-time management BSS called an access point device, and other STAs in the network are associated with it. Other stations in the BSS network that are not central stations are called terminals, also called non-AP STAs. When describing a STA, it is not necessary to distinguish between a terminal and a non-AP STA. In the same BSS network, due to distance, transmission power, etc., one STA cannot detect other STAs far away from it, and the two are each other's hidden nodes.

[0111] FIG. 2 is an interaction diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG. 2, the above method includes:

[0112] In step 201, the first device 101 determines a first radio frame in an initial association process with the second device 102 or a multi-link establishment process; the first radio frame includes first identification information; the first identification information indicates whether the first device supports distributed resource unit (dRU) transmission when the first device is a device supporting only 20MHz communication bandwidth.

[0113] In the UHR, in order to further improve the coverage and the reliability of transmission, a distributed resource unit (dRU) is proposed. The access point device can allocate dRUs in multiple dRU formats for the station device, so that the station device can receive the physical layer protocol data unit (PPDU) in the downlink transmission under the dRU, so that multiple station devices can share the spectrum resources in the same time period, and improve the network throughput and transmission distance.

[0114] In each generation of Wi-Fi standards, there are station devices supporting only 20MHz communication bandwidth (20MHz-only). These station devices are usually used in some specific Internet of Things (IoT) application scenarios. Internet of Things devices usually require relatively low bandwidth because they usually process small amounts of data, such as sensor data, environmental monitoring data, etc. Therefore, these devices usually choose Wi-Fi connection supporting only 20MHz bandwidth to reduce power consumption, cost and complexity. However, whether these devices support dRU transmission and whether they support dRU transmission under a large bandwidth is not explicitly defined in the current Wi-Fi standards. Therefore, in actual applications, it is necessary to enhance the signaling to identify the characteristics and capabilities of these devices.

[0115] It should be understood that the dRU, discrete RU, and distributed RU mentioned in the embodiments of the present disclosure refer to RUs whose subcarriers are discrete in the frequency domain, that is, RUs with this characteristic, which are referred to as dRU, discrete RU, and distributed RU in the embodiments of the present disclosure. However, RUs with this characteristic can also have other names in practice, which are not limited in the embodiments of the present disclosure. For ease of description, in the following embodiments, the RUs with this characteristic are referred to as dRU.

[0116] In the embodiments of the present disclosure, the first device determines the first wireless frame in an initial association process with the second device or a multi-link establishment process. The initial association relationship is established, for example, when a STA attempts to associate with an AP, an association request frame is sent to the AP, the AP responds to the association request frame through an association response frame, and an association identifier (AID) is allocated to the STA. The multi-link establishment process is, for example, a process in which the AP and the STA establish an access and transmission link on each frequency band or on different frequency intervals on the same frequency band.

[0117] The first wireless frame includes first identification information. The first identification information indicates whether the first device supports dRU transmission when the first device is a device supporting only a 20 MHz communication bandwidth. The first device can be one or more multi-connection station devices affiliated with a non-AP MLD. The device supporting only a 20 MHz communication bandwidth means that the first device can only use a 20 MHz spectrum bandwidth for communication and cannot use a larger spectrum bandwidth. The first wireless frame includes, but is not limited to, a probe request (Probe Request) frame, an association request (Association Request) frame, and a re-association request (Re Association Request) frame.

[0118] Specifically, for a device supporting only a 20 MHz communication bandwidth, if the dRU transmission cannot be accurately identified, the network cannot fully utilize the characteristics of the device to optimize resource allocation and communication scheduling, resulting in waste of resources and reduction of communication efficiency. Therefore, in the embodiments of the present disclosure, the first device determines whether the first device supports distributed resource unit (dRU) transmission when the first device is a device supporting only a 20 MHz communication bandwidth through the first identification information in an initial association process with the second device or a multi-link establishment process. For example, the first identification information is set to "1", indicating that the first device supporting only a 20 MHz communication bandwidth supports dRU transmission; and the first identification information is set to "0", indicating that the first device does not support dRU transmission. The first device transmits the first wireless frame, and conveys the capability information of the first device for dRU transmission when supporting only a 20 MHz communication bandwidth by identifying the first identification information in the first wireless frame, so that the second device can optimize resource allocation and communication scheduling according to the first identification information, which is suitable for UHR requirements.

[0119] In step 202, the first device 101 transmits the first wireless frame.

[0120] In the embodiments of the present disclosure, the first device sends a first wireless frame to the second device in an initial association procedure or a multi-link establishment procedure with the second device, and identifies whether the first device supports distributed resource unit (dRU) transmission when the first device is a 20MHz-only device through the first wireless frame.

[0121] In some embodiments, the first wireless frame further comprises second identification information, which identifies whether the first device is a 20MHz-only device.

[0122] In the embodiments of the present disclosure, if the first device is a 20MHz-only device, the first device identifies that it is a 20MHz-only device in a second wireless frame. For example, when a parameter value of the second identification information is set to “1”, it indicates that the first device is a 20MHz-only device; and when the parameter value of the second identification information is set to “0”, it indicates that the first device is not a 20MHz-only device. The second identification information in the first wireless frame clearly indicates the communication characteristics of the first device, which helps the second device to accurately understand the communication capability of the first device.

[0123] In some embodiments, only when the second identification information is set to “1”, i.e., the first device is a 20MHz-only device, the first identification information can be set to “1” to indicate that the first device supports dRU transmission; and the first identification information can be set to “0” to indicate that the first device does not support dRU transmission.

[0124] In an optional embodiment, the present application does not make further discussion on the case that the second identification information is set to “0”.

[0125] In some embodiments, the second identification information is carried in an operation capabilities information element or other information element of the first wireless frame; and / or

[0126] The first identification information is carried in a 20-MHz-only dRU support identification bit in an ultra-high reliability (UHR) capabilities information element of the first wireless frame.

[0127] In the embodiments of the present disclosure, the second identification information is carried in the operation capabilities, or the first identification information is carried in the 20-MHz-only dRU support identification bit in the UHR capabilities information element, so that additional information load in the first wireless frame can be avoided. By using the existing information element to deliver the identification information, communication overhead can be reduced and communication efficiency can be improved.

[0128] In some embodiments, when the parameter value of the second identification information is set to "1", the 20-MHz-only dRU support identification bit can be set. If the first device supports dRU transmission when only supporting 20MHz communication bandwidth, the parameter value of the 20-MHz-only dRU support identification bit is set to "1", indicating that the first device supports different dRU format transmission; if the first device does not support dRU transmission when only supporting 20MHz communication bandwidth, the parameter value of the 20-MHz-only dRU support identification bit is set to "0". When the parameter value of the 20-MHz-only dRU support identification bit is "1", the first device can support 26-tone, 52-tone, 106-tone dRU or 242-tone dRU transmission.

[0129] In some embodiments, the UHR capabilities information element further includes a first identification bit.

[0130] The first identification bit indicates whether the first device supports receiving a Null Data Packet (NDP) frame under a first communication bandwidth; wherein the first communication bandwidth is higher than 20MHz.

[0131] In the embodiments of the present disclosure, the UHR capabilities information element further comprises a first identification bit, which is used to identify whether the first device supports receiving the NDP frame under the first communication bandwidth. The first communication bandwidth is higher than 20 MHz. For example, the first device can support receiving the NDP frame with a bandwidth of 40 MHz, 80 MHz or 160 MHz. It should be noted that the devices supporting only 20 MHz communication bandwidth have specific application scenarios (such as some IoT devices), but this does not exclude that they can receive the NDP frame with higher bandwidth in some cases, because the NDP frame does not carry actual data load, and therefore does not significantly increase the power consumption or processing burden of these devices. Through the setting of the first identification bit, the first device can receive the NDP frame with dRU transmission under a large bandwidth (40 MHz, 80 MHz or 160 MHz) although it only supports 20 MHz communication bandwidth. In this way, more detailed channel state information can be provided, and the network optimization accuracy can be improved.

[0132] In some embodiments, the UHR capabilities information element further comprises a second identification bit;

[0133] The second identification bit identifies the support capability of the first device for 40 MHz physical layer protocol data unit (PPDU), 80 MHz PPDU or 160 MHz PPDU transmitted by using dRU when the dRU transmission is used.

[0134] In the embodiments of the present disclosure, the UHR capabilities information element further comprises a second identification bit, which is used to identify the support capability of the first device for 40 MHz, 80 MHz or 160 MHz PPDU when the dRU transmission is used. The explicit transmission capability of the device under high bandwidth helps the network to effectively optimize and manage the channel under high load or high interference environment, and improves the communication stability.

[0135] In some embodiments, the support capability comprises receiving capability and / or sending capability;

[0136] The receiving capability comprises the capability of receiving 40 MHz multi-user physical layer protocol data unit (MU PPDU), 80 MHz PPDU or 160 MHz MU PPDU mapped by using different dRU formats;

[0137] The sending capability comprises the capability of sending 40 MHz trigger-based physical layer protocol data unit (TB PPDU), 80 MHz PPDU or 160 MHz TB PPDU under different dRU format allocation;

[0138] The dRU format includes at least one of 26-tone, 52-tone, 106-tone, and 242-tone dRU.

[0139] In the embodiments of the present disclosure, the receiving capability of the first device includes the capability of the first device to receive a 40MHz, 80MHz or 160MHz multi-user (MU) PPDU mapped using different dRU formats. This means that the first device is capable of receiving a multi-user PPDU at different bandwidths and mapped by different dRU formats, such as 40MHz, 80MHz or 160MHz. The transmitting capability of the first device includes the capability of the first device to transmit a 40MHz, 80MHz or 160MHz trigger-based (TB) PPDU under different dRU format allocation. This means that the device is capable of transmitting a trigger-based PPDU at a bandwidth of 40MHz, 80MHz or 160MHz according to different dRU format allocation. The dRU format includes one or more of 26-tone, 52-tone, 106-tone and 242-tone dRU.

[0140] In the embodiments of the present disclosure, by including detailed 40MHz, 80MHz and 160MHz PPDU receiving and transmitting capability information in the UHR capabilities information element, the network measurement accuracy and optimization effect can be significantly improved, the network adaptability and flexibility can be enhanced, the communication performance and stability can be improved, and the network management and configuration can be simplified. This design can make full use of existing network resources to achieve more efficient, stable and flexible wireless network management.

[0141] In step 203, the second device 102 receives the first wireless frame, and determines whether dRU transmission is supported when the first device 101 is determined to be a device supporting only a 20MHz communication bandwidth.

[0142] In the embodiments of the present disclosure, the second device receives the first wireless frame sent by the first device, and determines whether dRU transmission is supported when the first device is determined to be a device supporting only a 20MHz communication bandwidth according to the first identification information in the first wireless frame. This enables the second device to understand the communication capability of the first device before communication starts, and avoids incompatible or erroneous communication attempts during communication. This can reduce the number of communication failures and retransmissions, and improve the stability and efficiency of communication.

[0143] In some embodiments, for the second device, the 20-MHz-only dRU support flag bit, the first flag bit in the UHR capabilities information element, and the second flag bit in the UHR capabilities information element are all set as reserved bits. By setting the bits that are not applicable to the second device as reserved bits, unnecessary error processing can be avoided in the communication process. In this way, the stability and reliability of the communication can be improved, and the possibility of communication failure can be reduced, thereby improving the stability and availability of the system.

[0144] In some embodiments, the names of information and the like are not limited to the names described in the embodiments, and the terms "information", "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "field", "symbol", "codepoint", "bit", "data", "program", "chip", and the like can be replaced with each other.

[0145] In some embodiments, the terms "time", "time point", "time instant", and the like can be replaced with each other, and the terms "time length", "time period", "time window", "window", and "time" can be replaced with each other.

[0146] In some embodiments, the terms "wireless access scheme", "waveform", and the like can be replaced with each other.

[0147] In some embodiments, the terms "certain", "preset", "pre-set", "set", "indicated", "a certain", "any", "first", and the like can be replaced with each other, and "certain A", "preset A", "pre-set A", "set A", "indicated A", "a certain A", "any A", and "first A" can be interpreted as A that is predetermined in a protocol or the like, A that is obtained by setting, configuration, or indication, or A that is certain, a certain, any, or first, but are not limited thereto.

[0148] In some embodiments, the determining or judging can be performed by a value represented by 1 bit (0 or 1), a true or false value (Boolean value) represented by true or false, or a comparison of numerical values (for example, a comparison with a predetermined value), but is not limited thereto.

[0149] In some embodiments, "not expecting to receive" can be interpreted as not receiving on the time domain resource and / or the frequency domain resource, or as not performing subsequent processing on the data, etc. after receiving the data, etc.; "not expecting to send" can be interpreted as not sending, or as sending but not expecting the receiver to respond to the content of the sending.

[0150] The communication method related to the embodiments of the present disclosure can include the foregoing steps and at least one of the embodiments. For example, step 201 can be implemented as an independent embodiment, step 202 can be implemented as an independent embodiment; the combination of step 201 and step 202 can be implemented as an independent embodiment, the combination of step 202 and step 203 can be implemented as an independent embodiment, but is not limited thereto.

[0151] In some embodiments, reference can be made to the other optional implementations described before or after the description corresponding to FIG. 2.

[0152] FIG. 3 is one of the flow diagrams of the communication method according to the embodiments of the present disclosure.

[0153] As shown in FIG. 3, the above method can be applied to the first device 101, and the above method includes:

[0154] Step 301, determining a first radio frame in an initial association process with a second device or a multi-link establishment process; the first radio frame includes first identification information; the first identification information identifies whether the first device supports distributed resource unit dRU transmission when the first device is a device supporting only a 20MHz communication bandwidth.

[0155] Step 302, sending the first radio frame.

[0156] Optionally, in the embodiments of the present disclosure, the first radio frame further includes second identification information, and the second identification information identifies whether the first device is a device supporting only a 20MHz communication bandwidth.

[0157] Optionally, in the embodiments of the present disclosure, the second identification information is carried in an operation capabilities information element or other information element of the first radio frame; and / or

[0158] The first identification information carries a 20-MHz-only dRU support identification bit in a UHR capabilities information element of the first wireless frame.

[0159] Optionally, the first identification information is set to "1" only when the second identification information is set to "1", i.e., the first device supports only a 20MHz-only communication bandwidth, to indicate that the first device is a 20MHz-only device supporting dRU transmission; and the first identification information is set to "0" to indicate that the first device does not support dRU transmission.

[0160] In an optional embodiment, the present application does not further discuss the case where the second identification information is set to "0".

[0161] Optionally, in the embodiments of the present application, the UHR capabilities information element further includes a first identification bit.

[0162] The first identification bit indicates whether the first device supports receiving a null data packet (NDP) frame at a first communication bandwidth, wherein the first communication bandwidth is higher than 20MHz.

[0163] Optionally, in the embodiments of the present application, the UHR capabilities information element further includes a second identification bit.

[0164] The second identification bit indicates a support capability of the first device for a 40MHz physical layer protocol data unit (PPDU), an 80MHz PPDU or a 160MHz PPDU when dRU transmission is used.

[0165] Optionally, in the embodiments of the present application, the support capability includes a receiving capability and / or a sending capability.

[0166] The receiving capability includes a capability of receiving a 40MHz multi-user physical layer protocol data unit (MU PPDU), an 80MHz MU PPDU or a 160MHz MU PPDU using different dRU formats.

[0167] The sending capability includes a capability of sending a 40MHz trigger-based physical layer protocol data unit (TB PPDU), an 80MHz TB PPDU or a 160MHz TB PPDU under different dRU format allocation.

[0168] The dRU format includes at least one of the following: a 26-tone dRU, a 52-tone dRU, a 106-tone dRU and a 242-tone dRU.

[0169] The communication method related to the embodiments of the present disclosure can include the foregoing steps and at least one of the embodiments. For example, step 301 can be implemented as an independent embodiment, step 302 can be implemented as an independent embodiment; the combination of step 301 and step 302 can be implemented as an independent embodiment, but is not limited thereto.

[0170] In some embodiments, other optional implementations described before or after the corresponding description of FIG. 3 can be referred to.

[0171] FIG. 4 is a second flow diagram of a communication method according to an embodiment of the present disclosure.

[0172] As shown in FIG. 4, the above method can be applied to the second device 102, and the above method includes:

[0173] Step 401, in an initial association process with the first device or a multi-link establishment process, a first wireless frame sent by the first device is received; the first wireless frame includes first identification information; the first identification information identifies whether the first device supports dRU transmission when the first device is a device supporting only 20MHz communication bandwidth.

[0174] Optionally, in the embodiments of the present disclosure, the first wireless frame further includes second identification information, and the second identification information identifies whether the first device is a device supporting only 20MHz communication bandwidth.

[0175] Optionally, in the embodiments of the present disclosure, the second identification information is carried in an operation capability operation capabilities information element or other information element of the first wireless frame; and / or

[0176] The first identification information is carried in a 20-MHz-only dRU support identification bit in a super-high reliability capability UHR capabilities information element of the first wireless frame.

[0177] Only when the second identification information is set to “1”, i.e., the first device is a device supporting only 20MHz communication bandwidth, the first identification information identification setting is set to “1”, indicating that the first device supporting dRU transmission is a 20MHz-only device; and the first identification information identification setting is set to “0”, indicating that the first device does not support dRU transmission.

[0178] In an optional embodiment, the present application does not make further discussion when the second identification information is set to “0”.

[0179] Optionally, in the embodiments of the present disclosure, the UHR capabilities information element further includes a first identification bit.

[0180] The first identification bit identifies whether the first device supports receiving a null data packet (NDP) frame at a first communication bandwidth; and the first communication bandwidth is higher than 20 MHz.

[0181] Optionally, in embodiments of the present disclosure, the UHR capabilities information element further comprises a second identification bit.

[0182] The second identification bit identifies support capability of the first device for a 40 MHz physical layer protocol data unit (PPDU), an 80 MHz PPDU or a 160 MHz PPDU when dRU transmission is adopted.

[0183] Optionally, in embodiments of the present disclosure, the support capability comprises receiving capability and / or sending capability.

[0184] The receiving capability comprises capability of receiving a 40 MHz multi-user physical layer protocol data unit (MU PPDU), an 80 MHz MU PPDU or a 160 MHz MU PPDU mapped using different dRU formats.

[0185] The sending capability comprises capability of sending a 40 MHz trigger-based physical layer protocol data unit (TB PPDU), an 80 MHz TB PPDU or a 160 MHz TB PPDU under different dRU format allocation.

[0186] The dRU format comprises at least one of the following: 26-tone, 52-tone, 106-tone and 242-tone dRU.

[0187] In some embodiments, other optional implementations can be described before or after the description of FIG. 4.

[0188] Embodiments of the present disclosure also propose an apparatus for implementing any of the above methods, for example, an apparatus comprising units or modules for implementing each step performed by a terminal in any of the above methods. For another example, another apparatus is proposed, comprising units or modules for implementing each step performed by a network device (such as an access network device, a core network function node, a core network device, etc.) in any of the above methods.

[0189] It should be understood that the division of each unit or module in the above apparatus is only a logical function division, and all or part of them can be integrated into a physical entity or physically separated in actual implementation. In addition, the units or modules in the apparatus can be implemented in the form of processor calling software: for example, the apparatus includes a processor, the processor is connected with a memory, the memory stores instructions, and the processor calls the instructions stored in the memory to realize any of the above methods or realize the functions of each unit or module of the above apparatus, wherein the processor is a general processor such as a central processing unit (CPU) or a microprocessor, and the memory is a memory in the apparatus or a memory outside the apparatus. Alternatively, the units or modules in the apparatus can be implemented in the form of hardware circuit, and the functions of part or all of the units or modules can be realized by the design of hardware circuit. The above hardware circuit can be understood as one or more processors; for example, in one implementation, the above hardware circuit is an application-specific integrated circuit (ASIC), and the functions of part or all of the units or modules are realized by the design of the logical relationship of elements in the circuit; for another example, in another implementation, the above hardware circuit is a programmable logic device (PLD), and a field programmable gate array (FPGA) is taken as an example, which can include a large number of logic gate circuits, and the connection relationship between the logic gate circuits is configured by a configuration file, so as to realize the functions of part or all of the above units or modules. All units or modules of the above apparatus can be all implemented in the form of processor calling software, or all implemented in the form of hardware circuit, or part implemented in the form of processor calling software and the remaining part implemented in the form of hardware circuit.

[0190] In the embodiments of the present disclosure, the processor is a circuit with signal processing capability. In one implementation, the processor can be a circuit with instruction reading and running capability, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), a digital signal processor (DSP), or the like. In another implementation, the processor can implement certain functions through a logical relationship of hardware circuits, and the logical relationship of the hardware circuits is fixed or can be reconfigured. For example, the processor is a hardware circuit implemented by an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In the reconfigurable hardware circuit, the processor loads a configuration document to implement the configuration of the hardware circuit. It can be understood that the processor loads instructions to implement the functions of the above part or all units or modules. In addition, the hardware circuit can also be designed for artificial intelligence, which can be understood as an ASIC, such as a neural network processing unit (NPU), a tensor processing unit (TPU), a deep learning processing unit (DPU), or the like.

[0191] FIG. 5 is a structural schematic diagram of a first device according to an embodiment of the present disclosure. As shown in FIG. 5, the first device 500 can include at least one of a determining module 501, a sending module 502, and the like.

[0192] In some embodiments, the determining module 501 is configured to determine a first radio frame in an initial association process with a second device or a multi-link establishment process; the first radio frame includes first identification information; and the first identification information indicates whether the first device supports distributed resource unit (dRU) transmission when the first device is a device supporting only a 20 MHz communication bandwidth.

[0193] Optionally, the determining module 501 is configured to perform at least one of the communication steps (for example, steps 201 and 301, but not limited thereto) performed by the first device 101 in any of the above methods. Details are not described herein again. The sending module 602 is configured to perform at least one of steps 202 and 302. Details are not described herein again.

[0194] FIG. 6 is a structural schematic diagram of a second device according to an embodiment of the present disclosure. As shown in FIG. 6, the second device 600 can include a receiving module 601.

[0195] In some embodiments, the receiving module 601 is configured to receive a first wireless frame sent by a first device during an initial association procedure or a multi-link establishment procedure; the first wireless frame includes first identification information; and the first identification information indicates whether the first device supports dRU transmission when the first device is a device that supports only a 20 MHz communication bandwidth.

[0196] Optionally, the receiving module 601 is configured to perform at least one of the communication steps (for example, steps 203 and 401, but not limited thereto) performed by the second device 102 in any of the above methods. Details are not described herein.

[0197] FIG. 7 is a structural schematic diagram of a terminal 700 (for example, a user equipment, etc.) according to an embodiment of the present disclosure. The terminal 700 can be a chip, a chip system, or a processor, etc. supporting a network device to implement any of the above methods, and can also be a chip, a chip system, or a processor, etc. supporting a terminal to implement any of the above methods. The terminal 700 can be used to implement the methods described in the above method embodiments. Details can be referred to the descriptions in the above method embodiments.

[0198] As shown in FIG. 7, the terminal 700 includes one or more processors 701. The processor 701 can be a general-purpose processor or a special-purpose processor, for example, a baseband processor or a central processing unit. The baseband processor can be configured to process communication protocols and communication data, and the central processing unit can be configured to control a communication device (for example, a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute a program, and process data of the program. The terminal 700 is configured to implement any of the above methods.

[0199] In some embodiments, the terminal 700 further includes one or more memories 702 configured to store instructions. Optionally, all or part of the memory 702 can also be outside the terminal 700.

[0200] In some embodiments, the terminal 700 further includes one or more transceivers 704. When the terminal 700 includes one or more transceivers 704, the transceiver 704 performs at least one of the communication steps (for example, steps 202, 302, and 401, but not limited thereto) in the above methods, and the processor 701 performs at least one of the other steps (for example, steps 201 and 301, but not limited thereto).

[0201] In some embodiments, the transceiver can include a receiver and / or a transmitter, which can be separate or integrated together. Optionally, the terms transceiver, transceiving unit, transceiver, transceiving circuit, etc. can be replaced by each other, the terms transmitter, transmitting unit, transmitter, transmitting circuit, etc. can be replaced by each other, and the terms receiver, receiving unit, receiver, receiving circuit, etc. can be replaced by each other.

[0202] In some embodiments, the terminal 700 can include one or more interface circuits 703. Optionally, the interface circuit 703 is connected with the memory 702, and the interface circuit 703 can be used to receive signals from the memory 702 or other devices, and can be used to send signals to the memory 702 or other devices. For example, the interface circuit 703 can read instructions stored in the memory 702 and send the instructions to the processor 701.

[0203] The terminal 700 described in the above embodiments can be a communication device such as a user equipment, but the scope of the terminal 700 described in the present disclosure is not limited thereto, and the structure of the terminal 700 can not be limited by Figure 7. The communication device can be a stand-alone device or can be part of a larger device. For example, the communication device can be: (1) a stand-alone integrated circuit (IC), or a chip, or a chip system or subsystem; (2) a set of one or more ICs, which can optionally also include storage components for storing data, 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, handset, mobile unit, vehicle-mounted device, network device, cloud device, artificial intelligence device, etc.; (6) other devices, etc.

[0204] Figure 8 is a structural schematic diagram of a chip 800 according to an embodiment of the present disclosure. For the case where the terminal 700 is a chip or a chip system, the structural schematic diagram of the chip 800 shown in Figure 8 can be referred to, but is not limited thereto.

[0205] The chip 800 includes one or more processors 801, and the chip 800 is configured to execute any of the above methods.

[0206] In some embodiments, the chip 800 further includes one or more interface circuits 803. Optionally, the interface circuit 803 is connected with the memory 802, and the interface circuit 803 can be used to receive signals from the memory 802 or other devices, and can be used to send signals to the memory 802 or other devices. For example, the interface circuit 803 can read instructions stored in the memory 802 and send the instructions to the processor 801.

[0207] In some embodiments, the interface circuit 803 performs at least one of the communication steps (for example, step 202, step 302, step 401, but not limited thereto) of transmitting and / or receiving in the above method, and the processor 801 performs at least one of the other steps (for example, step 201, step 301, but not limited thereto).

[0208] In some embodiments, the interface circuit, the interface, the transceiving pin, the transceiver and the like can be replaced with each other.

[0209] In some embodiments, the chip 800 further includes one or more memories 802 for storing instructions. Optionally, all or part of the memory 802 can be outside the chip 800.

[0210] The present disclosure further proposes a storage medium having instructions stored thereon, which, when executed on the terminal 700, causes the terminal 700 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 is not limited thereto, and can also be a storage medium readable by other devices. Optionally, the storage medium can be a non-transitory storage medium, but is not limited thereto, and can also be a transitory storage medium.

[0211] The present disclosure further proposes a program product, which, when executed by the terminal 700, causes the terminal 700 to perform any of the above methods. Optionally, the program product is a computer program product.

[0212] The present disclosure further proposes a computer program, which, when executed on a computer, causes the computer to perform any of the above methods.

Claims

1. A communication method applied to a first device, characterized in that, Comprising: determining a first radio frame in an initial association procedure, or a multi-link setup procedure, with a second device; the first radio frame comprises first identification information; the first identification information identifies whether the first device supports distributed resource unit (dRU) transmission when the first device is a 20MHz-only communication bandwidth supported device; sending the first radio frame.

2. The communication method according to claim 1, characterized by, the first radio frame further comprises second identification information; the second identification information identifies whether the first device is a 20MHz-only communication bandwidth supported device.

3. The communication method of claim 2, wherein the second identification information is carried in an operation capabilities information element or other information element of the first radio frame; and / or the first identification information is carried in a 20-MHz-only dRU support identification bit in an ultra-high reliability (UHR) capabilities information element of the first radio frame.

4. The communication method according to claim 3, characterized by, the UHR capabilities information element further comprises a first identification bit; the first identification bit identifies whether the first device supports receiving a null data packet (NDP) frame at a first communication bandwidth; wherein the first communication bandwidth is higher than 20MHz.

5. The communication method according to claim 3, wherein, the UHR capabilities information element further comprises a second identification bit; the second identification bit identifies support capability of the first device for 40MHz physical layer protocol data unit (PPDU), 80MHz PPDU or 160MHz PPDU when using dRU transmission.

6. The communication method according to claim 5, wherein, the support capability comprises receiving capability and / or transmitting capability; the receiving capability comprises capability of receiving 40MHz multi-user physical layer protocol data unit (MU PPDU), 80MHz MU PPDU or 160MHz MU PPDU mapped using different dRU formats; the transmitting capability comprises capability of transmitting 40MHz trigger-based physical layer protocol data unit (TB PPDU), 80MHz TB PPDU or 160MHz TB PPDU under different dRU format allocation; the dRU format comprises at least one of 26-tone, 52-tone, 106-tone and 242-tone dRU. 7.A communication method applied to a second device, the method comprising: Comprising: receiving a first radio frame sent by a first device in an initial association procedure, or a multi-link setup procedure, with the first device; the first radio frame comprises first identification information; the first identification information identifies whether the first device supports dRU transmission when the first device is a 20MHz-only communication bandwidth supported device.

8. The communication method according to claim 7, wherein, the first radio frame further comprises second identification information; the second identification information identifies whether the first device is a 20MHz-only communication bandwidth supported device.

9. The communication method of claim 8, wherein The second identification information is carried in an operation capabilities information element or other information element of the first wireless frame; and / or The first identification information is carried in a 20-MHz-only dRU support identification bit in an ultra-high reliability capabilities UHR capabilities information element of the first wireless frame.

10. The communication method according to claim 9, wherein, The UHR capabilities information element further includes a first identification bit; The first identification bit identifies whether the first device supports receiving a null data packet NDP frame at a first communication bandwidth; wherein the first communication bandwidth is higher than 20 MHz.

11. The communication method according to claim 9, wherein, The UHR capabilities information element further includes a second identification bit; The second identification bit identifies a support capability of the first device for a 40 MHz physical layer protocol data unit PPDU, an 80 MHz PPDU or a 160 MHz PPDU when using dRU transmission.

12. The communication method according to claim 11, wherein, The support capability includes a receiving capability and / or a sending capability; The receiving capability includes a capability of receiving a 40 MHz multi-user physical layer protocol data unit MU PPDU, an 80 MHz MU PPDU or a 160 MHz MU PPDU mapped using different dRU formats; The sending capability includes a capability of sending a 40 MHz trigger-based physical layer protocol data unit TB PPDU, an 80 MHz TB PPDU or a 160 MHz TB PPDU under different dRU format allocation; The dRU format includes at least one of the following: a 26-tone, a 52-tone, a 106-tone and a 242-tone dRU.

13. A communication device, the communication device being a first device, characterized in that The first device includes: A determining module configured to determine a first wireless frame in an initial association process or a multi-link establishment process with a second device; the first wireless frame includes first identification information; the first identification information identifies whether the first device supports distributed resource unit dRU transmission when the first device is a device supporting only a 20 MHz communication bandwidth. A sending module configured to send the first wireless frame.

14. A communication device, the communication device being a second device, characterized in that The second device includes: A receiving module configured to receive a first wireless frame sent by a first device in an initial association process or a multi-link establishment process with the first device; the first wireless frame includes first identification information; the first identification information identifies whether the first device supports dRU transmission when the first device is a device supporting only a 20 MHz communication bandwidth.

15. A communication device, the communication device being a first device, characterized in that Comprise: One or more processors; The first device is configured to perform the communication method in any one of claims 1 to 6.

16. A communication device, the communication device being a second device, characterized in that Comprise: One or more processors; The second device is configured to perform the communication method in any one of claims 7 to 12.

17. A communication system, characterized by Comprise a first device and a second device; In the initial association process or the multi-link establishment process with the second device, the first device determines a first wireless frame; the first wireless frame comprises first identification information; the first identification information identifies whether the first device supports distributed resource unit (dRU) transmission when the first device is a device supporting only 20MHz communication bandwidth; and the first device transmits the first wireless frame In the initial association process or the multi-link establishment process with the first device, the second device receives the first wireless frame transmitted by the first device; the first wireless frame comprises first identification information; and the first identification information identifies whether the first device supports dRU transmission when the first device is a device supporting only 20MHz communication bandwidth.

18. A storage medium, the storage medium storing instructions, wherein, When the instructions run on the communication device, the communication device performs the communication method of any one of claims 1 to 6, or performs the communication method of any one of claims 7 to 12.

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