Wireless communication method and device, station and access point

Abstract

Provided in the present application are a wireless communication method, device, station and access point, the method comprising: a station receiving a trigger frame sent by an access point, the trigger frame comprising a distributed bandwidth (DBW) indication, the DBW indication being used for indicating a DBW used for transmitting a physical layer protocol data unit (PPDU) based on a distributed tone resource unit (DRU), and the DBW indication being used for indicating a DBW used for transmitting the PPDU based on the DRU; the DBW indication is indicated by a target information domain in the trigger frame; sending the PPDU according to the trigger frame; wherein the target information domain comprises a public information domain and a special user information domain; or the target information domain comprises a public information domain and a user information domain; or the target information domain comprises a special user information domain and a user information domain; or the target information domain comprises a user information domain.

Description

Wireless communication methods, devices, sites and access points Technical Field

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

[0002] In related technologies, stations can transmit Physical Layer Protocol Data Units (PPDUs) based on Continuous Resource Units (or Regular Resource Units, RRUs). In some scenarios, to improve PPDU coverage, it is considered to transmit PPDUs through Distributed Tone Resource Units (DRUs). In this case, how to configure stations to transmit PPDUs based on DRUs to reduce the configuration overhead of access points is an urgent problem to be solved. Summary of the Invention

[0003] This application provides a wireless communication method, apparatus, site, and access point, which helps to reduce the configuration overhead of the access point.

[0004] Firstly, a wireless communication method is provided, comprising:

[0005] The site receives a trigger frame sent by the access point, wherein the trigger frame includes a distributed bandwidth (DBW) indication, wherein the DBW indication is used to indicate the DBW used for transmitting physical layer protocol data units (PPDUs) based on distributed tone resource units (DRUs), and the DBW indication is indicated by the target information field in the trigger frame.

[0006] Send a PPDU according to the trigger frame;

[0007] The target information domain includes a public information domain and a special user information domain; or

[0008] The target information domain includes a public information domain and a user information domain; or

[0009] The target information domain includes a special user information domain and a user information domain; or

[0010] The target information domain includes the user information domain.

[0011] Secondly, a wireless communication method is provided, including:

[0012] The access point sends a trigger frame to the site, wherein the trigger frame includes a distributed bandwidth (DBW) indication, wherein the DBW indication is used to indicate the DBW used for transmitting physical layer protocol data units (PPDUs) based on distributed tone resource units (DRUs), and the DBW indication is indicated by the target information field in the trigger frame.

[0013] Receive PPDU according to the trigger frame;

[0014] The target information domain includes a public information domain and a special user information domain; or

[0015] The target information domain includes a public information domain and a user information domain; or

[0016] The target information domain includes a special user information domain and a user information domain; or

[0017] The target information domain includes the user information domain.

[0018] In some implementations, the DBW indication is indicated by at least one bit in the target information field, wherein the at least one bit is set in at least one of the following bits in the target information field: reserved bit, ignored bit, and added bit.

[0019] In some implementations, the target information domain includes a public information domain and a special user information domain, and the DBW indication is indicated through the uplink bandwidth subdomain in the public information domain and the uplink bandwidth extension domain in the special user information domain.

[0020] In some implementations, the uplink bandwidth subdomain in the public information domain and the uplink bandwidth extension domain in the special user information domain are used to jointly indicate the DBW used for transmitting PPDU based on DRU and the bandwidth of the PPDU.

[0021] In some implementations, the trigger frame further includes a Resource Unit (RU) type indication, which indicates that the RU type transmitting the PPDU is a contiguous resource unit or a DRU, wherein the RU type indication is indicated by at least one bit in at least one of the following fields of the trigger frame:

[0022] Public information domain;

[0023] Special user information field;

[0024] User information field.

[0025] In some implementations, when the bandwidth of the PPDU is 20MHz, the RU type indication is indicated through the public information field, the special user information field, or 1 bit in the user information field; or

[0026] When the bandwidth of the PPDU is 40MHz, the RU type indication is indicated by the public information field, the special user information field, or 1 bit in the user information field; or

[0027] When the bandwidth of the PPDU is 80MHz, the RU type indication is indicated by the public information field, the special user information field, or 1 bit in the user information field; or

[0028] When the bandwidth of the PPDU is 160MHz, the RU type indication is indicated by the common information field, the special user information field, or 1 bit in the user information field; or

[0029] When the bandwidth of the PPDU is 80MHz+80MHz, the RU type indication is indicated by 2 bits in the at least one field, wherein each of the 2 bits corresponds to one of the two 80MHz bands, and each bit is used to indicate the RU type used for transmitting the PPDU on the corresponding 80MHz bandwidth; or

[0030] When the bandwidth of the PPDU is 320MHz, the RU type indication is indicated by the common information field, the special user information field, or 1 bit in the user information field; or

[0031] When the bandwidth of the PPDU is 80MHz+80MHz+80MHz+80MHz, the RU type indication is indicated by 4 bits in the at least one field, wherein each of the 4 bits corresponds to one of the four 80MHz bands, and each bit is used to indicate the RU type used to transmit the PPDU on the corresponding 80MHz bandwidth.

[0032] In some implementations, the at least one bit is set in at least one of the following at least one field:

[0033] Reserved bits, ignored bits, added bits.

[0034] In some implementations, the trigger frame further includes a DRU allocation indication, which indicates DRU allocation information used for transmitting PPDUs based on DRUs; wherein the DRU allocation indication is indicated by at least one of the following fields of the trigger frame:

[0035] Public information domain;

[0036] Special user information field;

[0037] User information field.

[0038] In some implementations, the DRU allocation indication is indicated by at least one of the following fields of the trigger frame:

[0039] Resource unit allocation subdomain in the user information domain;

[0040] PS160 subdomain in the User Information domain;

[0041] Uplink bandwidth subdomain in the public information domain;

[0042] Uplink bandwidth extension subdomain in the special user information domain.

[0043] In some implementations, the DRU allocation information includes at least one of the following:

[0044] The size of the DRU used to transmit the PPDU;

[0045] The DRU location used to transmit the PPDU;

[0046] DRU index used for transmitting the PPDU.

[0047] Thirdly, a wireless communication method is provided, including:

[0048] The site receives a trigger frame sent by the access point, wherein the trigger frame includes configuration information for transmitting Physical Layer Protocol Data Units (PPDUs);

[0049] Send a PPDU according to the configuration information;

[0050] The configuration information includes at least one of the following:

[0051] Resource Unit (RU) type indicator, used to indicate that the RU type for transmitting the PPDU is either a Continuous Resource Unit or a Distributed Tone Resource Unit (DRU);

[0052] Distributed bandwidth (DBW) indicator is used to indicate the DBW used for DRU-based PPDU transmission;

[0053] DRU allocation indication is used to transmit PPDU based on DRU allocation information.

[0054] In some implementations, the DBW indication is indicated through the target information field in the trigger frame;

[0055] The target information domain includes a public information domain and a special user information domain; or

[0056] The target information domain includes a public information domain and a user information domain; or

[0057] The target information domain includes a special user information domain and a user information domain; or

[0058] The target information domain includes the user information domain.

[0059] In some implementations, the DBW indication is indicated by at least one bit in the target information field, wherein the at least one bit is set in at least one of the following bits in the target information field: reserved bit, ignored bit, and added bit.

[0060] In some implementations, the target information domain includes a public information domain and a special user information domain, and the DBW indication is indicated through the uplink bandwidth subdomain in the public information domain and the uplink bandwidth extension domain in the special user information domain.

[0061] In some implementations, the uplink bandwidth subdomain in the public information domain and the uplink bandwidth extension domain in the special user information domain are used to jointly indicate the DBW used for transmitting PPDU based on DRU and the bandwidth of the PPDU.

[0062] In some implementations, the RU type indication is indicated by at least one bit in at least one of the following fields of the trigger frame:

[0063] Public information domain;

[0064] Special user information field;

[0065] User information field.

[0066] In some implementations, when the bandwidth of the PPDU is 20MHz, the RU type indication is indicated through the public information field, the special user information field, or 1 bit in the user information field; or

[0067] When the bandwidth of the PPDU is 40MHz, the RU type indication is indicated by the public information field, the special user information field, or 1 bit in the user information field; or

[0068] When the bandwidth of the PPDU is 80MHz, the RU type indication is indicated by the public information field, the special user information field, or 1 bit in the user information field; or

[0069] When the bandwidth of the PPDU is 160MHz, the RU type indication is indicated by the public information field, the special user information field, or 1 bit in the user information field; or

[0070] When the bandwidth of the PPDU is 80MHz+80MHz, the RU type indication is indicated by 2 bits in the at least one field, wherein each of the 2 bits corresponds to one of the two 80MHz bands, and each bit is used to indicate the RU type used for transmitting the PPDU on the corresponding 80MHz bandwidth; or

[0071] When the bandwidth of the PPDU is 320MHz, the RU type indication is indicated by the common information field, the special user information field, or 1 bit in the user information field; or

[0072] When the bandwidth of the PPDU is 80MHz+80MHz+80MHz+80MHz, the RU type indication is indicated by 4 bits in the at least one field, wherein each of the 4 bits corresponds to one of the four 80MHz bands, and each bit is used to indicate the RU type used to transmit the PPDU on the corresponding 80MHz bandwidth.

[0073] In some implementations, the at least one bit is set in at least one of the following at least one field:

[0074] Reserved bits, ignored bits, added bits.

[0075] In some implementations, the DRU allocation indication is used to indicate DRU allocation information used for DRU-based PPDU transmission; wherein the DRU allocation indication is indicated by at least one of the following fields of the trigger frame:

[0076] Public information domain;

[0077] Special user information field;

[0078] User information field.

[0079] In some implementations, the DRU allocation indication is indicated by at least one of the following fields of the trigger frame:

[0080] Resource unit allocation subdomain in the user information domain;

[0081] PS160 subdomain in the User Information domain;

[0082] Uplink bandwidth subdomain in the public information domain;

[0083] Uplink bandwidth extension subdomain in the special user information domain.

[0084] In some implementations, the DRU allocation information includes at least one of the following:

[0085] The size of the DRU used to transmit the PPDU;

[0086] The DRU location used to transmit the PPDU;

[0087] DRU index used for transmitting the PPDU.

[0088] Fourthly, a wireless communication method is provided, comprising:

[0089] The access point sends a trigger frame to the site, wherein the trigger frame includes configuration information for transmitting Physical Layer Protocol Data Units (PPDUs);

[0090] Receive PPDU according to the configuration information;

[0091] The configuration information includes at least one of the following:

[0092] Resource Unit (RU) type indicator, used to indicate that the RU type for transmitting the PPDU is either a Continuous Resource Unit or a Distributed Tone Resource Unit (DRU);

[0093] Distributed bandwidth (DBW) indicator is used to indicate the DBW used for DRU-based PPDU transmission;

[0094] DRU allocation indication is used to transmit PPDU based on DRU allocation information.

[0095] In some implementations, the DBW indication is indicated through the target information field in the trigger frame;

[0096] The target information domain includes a public information domain and a special user information domain; or

[0097] The target information domain includes a public information domain and a user information domain; or

[0098] The target information domain includes a special user information domain and a user information domain; or

[0099] The target information domain includes the user information domain.

[0100] In some implementations, the DBW indication is indicated by at least one bit in the target information field, wherein the at least one bit is set in at least one of the following bits in the target information field: reserved bit, ignored bit, and added bit.

[0101] In some implementations, the target information domain includes a public information domain and a special user information domain, and the DBW indication is indicated through the uplink bandwidth subdomain in the public information domain and the uplink bandwidth extension domain in the special user information domain.

[0102] In some implementations, the uplink bandwidth subdomain in the public information domain and the uplink bandwidth extension domain in the special user information domain are used to jointly indicate the DBW used for transmitting PPDU based on DRU and the bandwidth of the PPDU.

[0103] In some implementations, the RU type indication is indicated by at least one bit in at least one of the following fields of the trigger frame:

[0104] Public information domain;

[0105] Special user information field;

[0106] User information field.

[0107] In some implementations, when the bandwidth of the PPDU is 20MHz, the RU type indication is indicated through the public information field, the special user information field, or 1 bit in the user information field; or

[0108] When the bandwidth of the PPDU is 40MHz, the RU type indication is indicated by the public information field, the special user information field, or 1 bit in the user information field; or

[0109] When the bandwidth of the PPDU is 80MHz, the RU type indication is indicated by the public information field, the special user information field, or 1 bit in the user information field; or

[0110] When the bandwidth of the PPDU is 160MHz, the RU type indication is indicated by the common information field, the special user information field, or 1 bit in the user information field; or

[0111] When the bandwidth of the PPDU is 80MHz+80MHz, the RU type indication is indicated by 2 bits in the at least one field, wherein each of the 2 bits corresponds to one of the two 80MHz bands, and each bit is used to indicate the RU type used for transmitting the PPDU on the corresponding 80MHz bandwidth; or

[0112] When the bandwidth of the PPDU is 320MHz, the RU type indication is indicated by the common information field, the special user information field, or 1 bit in the user information field; or

[0113] When the bandwidth of the PPDU is 80MHz+80MHz+80MHz+80MHz, the RU type indication is indicated by 4 bits in the at least one field, wherein each of the 4 bits corresponds to one of the four 80MHz bands, and each bit is used to indicate the RU type used to transmit the PPDU on the corresponding 80MHz bandwidth.

[0114] In some implementations, the at least one bit is set in at least one of the following at least one field:

[0115] Reserved bits, ignored bits, added bits.

[0116] In some implementations, the DRU allocation indication is used to indicate DRU allocation information used for DRU-based PPDU transmission; wherein the DRU allocation indication is indicated by at least one of the following fields of the trigger frame:

[0117] Public information domain;

[0118] Special user information field;

[0119] User information field.

[0120] In some implementations, the DRU allocation indication is indicated by at least one of the following fields of the trigger frame:

[0121] Resource unit allocation subdomain in the user information domain;

[0122] PS160 subdomain in the user information domain;

[0123] Uplink bandwidth subdomain in the public information domain;

[0124] Uplink bandwidth extension subdomain in the special user information domain.

[0125] In some implementations, the DRU allocation information includes at least one of the following:

[0126] The size of the DRU used to transmit the PPDU;

[0127] The DRU location used to transmit the PPDU;

[0128] DRU index used for transmitting the PPDU.

[0129] Fifthly, a wireless communication device is provided, comprising:

[0130] A receiving module is used to receive a trigger frame sent by an access point, wherein the trigger frame includes a distributed bandwidth (DBW) indication, wherein the DBW indication is used to indicate the DBW used for transmitting physical layer protocol data units (PPDUs) based on distributed tone resource units (DRUs), and the DBW indication is indicated by the target information field in the trigger frame.

[0131] The sending module is used to receive PPDU according to the trigger frame;

[0132] The target information domain includes a public information domain and a special user information domain; or

[0133] The target information domain includes a public information domain and a user information domain; or

[0134] The target information domain includes a special user information domain and a user information domain; or

[0135] The target information domain includes the user information domain.

[0136] Sixthly, a wireless communication device is provided, comprising:

[0137] A sending module is used to send a trigger frame to a station, wherein the trigger frame includes a distributed bandwidth (DBW) indication, wherein the DBW indication is used to indicate the DBW used for transmitting physical layer protocol data units (PPDUs) based on distributed tone resource units (DRUs), and the DBW indication is indicated by the target information field in the trigger frame.

[0138] The receiving module is used to receive PPDU according to the trigger frame;

[0139] The target information domain includes a public information domain and a special user information domain; or

[0140] The target information domain includes a public information domain and a user information domain; or

[0141] The target information domain includes a special user information domain and a user information domain; or

[0142] The target information domain includes the user information domain.

[0143] In a seventh aspect, a wireless communication device is provided, comprising:

[0144] A receiving module is used to receive a trigger frame sent by an access point, wherein the trigger frame includes configuration information for transmitting Physical Layer Protocol Data Units (PPDUs);

[0145] The sending module is used to send PPDU according to the configuration information;

[0146] The configuration information includes at least one of the following:

[0147] Resource Unit (RU) type indicator, used to indicate that the RU type for transmitting the PPDU is either a Continuous Resource Unit or a Distributed Tone Resource Unit (DRU);

[0148] Distributed bandwidth (DBW) indicator is used to indicate the DBW used for DRU-based PPDU transmission;

[0149] DRU allocation indication is used to transmit PPDU based on DRU allocation information.

[0150] Eighthly, a wireless communication device is provided, comprising:

[0151] A sending module is used to send a trigger frame to the station, wherein the trigger frame includes configuration information for transmitting Physical Layer Protocol Data Unit (PPDU);

[0152] The receiving module is used to receive PPDU according to the configuration information;

[0153] The configuration information includes at least one of the following:

[0154] Resource Unit (RU) type indicator, used to indicate that the RU type for transmitting the PPDU is either a Continuous Resource Unit or a Distributed Tone Resource Unit (DRU);

[0155] Distributed bandwidth (DBW) indicator is used to indicate the DBW used for DRU-based PPDU transmission;

[0156] DRU allocation indication is used to transmit PPDU based on DRU allocation information.

[0157] A ninth aspect provides a site including a processor and a memory. The memory is used to store a computer program, and the processor is used to invoke and run the computer program stored in the memory to perform the methods of the first aspect, the third aspect, or their respective implementations described above.

[0158] In a tenth aspect, an access point is provided, including a processor and a memory. The memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to perform the methods of the second or fourth aspect or their respective implementations described above.

[0159] Eleventhly, a chip is provided for implementing the methods of any one of the first to fourth aspects or their respective implementations. Specifically, the chip includes: a processor for calling and running a computer program from a memory, causing a device equipped with the chip to perform the methods of any one of the first to fourth aspects or their respective implementations.

[0160] In a twelfth aspect, a readable storage medium is provided for storing a computer program that causes a computer to perform the methods of any one of the first to fourth aspects or their respective implementations.

[0161] In a thirteenth aspect, a computer program product is provided, comprising computer program instructions that cause a computer to perform the methods of any one of the first to fourth aspects or their respective implementations.

[0162] In a fourteenth aspect, a computer program is provided that, when run on a computer, causes the computer to perform the methods of any one of the first to fourth aspects or their respective implementations.

[0163] Through the above technical solution, the access point can use the existing information field in the trigger frame to carry the DBW indication. For example, the DBW indication can be carried by the reserved bits, ignored bits, or added bits in the existing information field of the trigger frame, without the need for an additional information field to carry the DBW indication. On the one hand, this can reduce the configuration overhead of the access point, and on the other hand, it can better support the PPDU transmission scheme based on RRU. Attached Figure Description

[0164] Figure 1 is a schematic diagram of a communication system applicable to an embodiment of this application.

[0165] Figure 2 is a schematic interactive diagram of a wireless communication method according to an embodiment of this application.

[0166] Figure 3 is a schematic interactive diagram of another wireless communication method according to an embodiment of this application.

[0167] Figure 4 is a schematic diagram of a communication device provided in an embodiment of this application.

[0168] Figure 5 is a schematic diagram of another communication device provided in an embodiment of this application.

[0169] Figure 6 is a schematic block diagram of a communication device provided according to an embodiment of this application.

[0170] Figure 7 is a schematic block diagram of a chip provided according to an embodiment of this application.

[0171] Figure 8 is a schematic block diagram of a communication system provided according to an embodiment of this application. Detailed Implementation

[0172] The technical solutions of the embodiments of this application will now be described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art without creative effort regarding the embodiments of this application are within the scope of protection of this application.

[0173] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Furthermore, the terms "first" and "second," etc., used herein are used only to distinguish different objects and not to describe a particular order.

[0174] It should be noted that, in the embodiments of this application, "at least one item" refers to one item or more items.

[0175] "Multiple items" refers to two or more items, and "at least two items" refers to two or more items.

[0176] "At least one of the following" or similar expressions may refer to any combination of these items. For example, at least one of a, b, or c may mean: a, b, c, "a and b", "a and c", "b and c", or "a and b and c".

[0177] It should be noted that in the embodiments of this application, "and / or" indicates that the connected objects can have three relationships. For example, "A and / or B" can represent three scenarios: only A exists, only B exists, and both A and B exist simultaneously. The character " / " generally indicates that the preceding and following objects have an "or" relationship.

[0178] It should be understood that the "instruction" mentioned in the embodiments of this application can be a direct instruction or an indirect instruction. For example, A instructing B can mean that A directly instructs B, such as B being obtainable through A; or it can mean that A indirectly instructs B, such as A instructing C, where B is obtainable through C, for example, B and C are related.

[0179] The technical solutions provided in this application can be applied to wireless local area network (WLAN) systems, and the embodiments of this application are applicable to the Institute of Electrical and Electronics Engineers (IEEE) used in WLANs.

[0180] Any protocol in the 802.11 series, such as 802.11a / b / g, 802.11n, 802.11ac, 802.11ax, etc.

[0181] The methods provided in this application can be implemented by a communication device in a wireless communication system or a chip or processor within that device, and correspondingly, the communication device supports IEEE protocols.

[0182] Communication is conducted using the 802.11 series of protocols. While this application primarily uses a network deploying IEEE 802.11 as an example, those skilled in the art will readily understand that the various aspects of this application can be extended to other networks employing various standards or protocols, such as Bluetooth, high-performance radio LANs (HIPERLANs) (a wireless standard similar to IEEE 802.11, primarily used in Europe), wide area networks (WANs), WLANs, personal area networks (PANs), ultra-wideband (UWB) based wireless PAN systems, sensing systems, or other networks now known or to be developed in the future. Therefore, regardless of the coverage area and wireless access protocol used, the various aspects provided in this application can be applied to any suitable wireless network.

[0183] In the WiFi protocol, a station (abbreviated as STA) includes access point stations (abbreviated as AP STA) and non-access point stations (abbreviated as non-AP station). For the sake of simplicity, access point stations are usually called access points (abbreviated as AP), and non-access point stations are called stations (abbreviated as STA).

[0184] Figure 1 shows a schematic structural diagram of a communication system 100 applicable to an embodiment of this application. The communication system 100 may include an access point 110 and a station 120. The station 120 can access the network through the access point 110.

[0185] Access points can support communication or sensing based on WiFi protocols, such as those based on the 802.11b protocol.

[0186] 802.11a protocol, 802.11g protocol, 802.11n protocol, 802.11ac protocol, 802.11ax, 802.11be,

[0187] Communication or sensing is performed using the 802.11bn protocol or next-generation protocols or protocols after that.

[0188] The site can support communication or sensing based on WiFi protocols, for example, it can support protocols based on 802.11b.

[0189] It communicates or senses using protocols such as 802.11a, 802.11g, 802.11n, 802.11ac, 802.11ax, 802.11be, 802.11bn, or next-generation protocols or protocols after that.

[0190] The communication in the communication system 100 can be communication between access points and stations, or communication between stations, or communication between access points.

[0191] An access point acts as a bridge connecting wired and wireless networks. Its main function is to connect various wireless network clients together and then connect the wireless network to the Ethernet.

[0192] In some scenarios, access points and sites can be devices used in vehicle networking, IoT nodes and sensors in the Internet of Things (IoT), smart cameras, smart remote controls, smart water and electricity meters in smart homes, and sensors in smart cities.

[0193] In some scenarios, the access point can be a terminal device (such as a mobile phone) with a WiFi chip or a network device (such as a router).

[0194] In the embodiments of this application, the site may be a mobile phone, tablet computer, computer, virtual reality (VR) device, augmented reality (AR) device, wireless device in industrial control, set-top box, wireless device in self-driving, vehicle communication device, wireless device in remote medical care, wireless device in smart grid, wireless device in transportation safety, wireless device in smart city or smart home, wireless device, wireless communication chip, etc. that support WLAN or WiFi technology.

[0195] It should be understood that Figure 1 only illustrates one access point and two sites. Optionally, the communication system 100 may include multiple access points or other numbers of sites, which is not limited in this application embodiment.

[0196] Optionally, the communication system 100 may also include other devices, such as network controllers, gateways, and other network entities, which are not limited in this application.

[0197] To facilitate understanding of the embodiments of this application, the Distributed Tone Resource Unit (DRU) related to this application will be described.

[0198] In the embodiments of this application, tone is also referred to as frequency modulation.

[0199] DRU is a hot research topic in the 802.11bn physical layer. DRU can achieve coverage extension and range versus rate (RvR) enhancement by overcoming the power spectral density (PSD) limitation (e.g., the PSD limit for non-AP STA under low probability of intercept (LPI) at 6 GHz is -1 dBm / MHz).

[0200] The main idea of ​​DRU is to allocate a small-size resource unit (RU) tone to a large bandwidth. This makes the tone of each STA discontinuous, so each tone can be transmitted at higher power. This is because the STA has a lower subcarrier density under the PSD limit of -1dBm / MHz.

[0201] In some scenarios, RUs are defined with continuous tones and are called Regular Resource Units (RRUs).

[0202] If the tone of a DRU is well planned, the maximum transmit power of a DRU can be calculated by the following formula (1):

[0203]

[0204] Where, N RU This indicates the RU size, such as 26, 52, 106, etc.

[0205] M represents the number of tones occupied by the DRU in every 13 subcarriers. For example, if the subcarrier spacing is 78.125kHz, then a 1MHz bandwidth has 12.8 subcarriers, which is approximately equal to 13 subcarriers.

[0206] 10 -0.1 This represents the transmit power (in mW) of -1 dBm in a 1 MHz bandwidth.

[0207] N RU / M*13 should be less than N DBW , where N DBW This indicates the number of subcarriers in the corresponding distributed bandwidth (DBW).

[0208] In some scenarios, M can be calculated using the following formula (2):

[0209]

[0210] Comparing formulas (1) and (2), it can be seen that the maximum transmit power of the DRU is equal to the DRU size (i.e., N). RU ) and the DBW function of the DRU.

[0211] Table 1 shows the performance of RRU and DRU at different N values. RU The maximum transmit power value under DBW conditions.

[0212] Table 1

[0213]

[0214] The maximum transmit power of the RRU can be determined by 10*lg(N) RU The result is calculated as *0.078125)-1(dBm).

[0215] Table 2 shows the transmit power gain of the DRU compared to the RRU within different distributed bandwidths. It can be seen that the gain is related to the RU size (i.e., N). RU And related to distributed bandwidth.

[0216] Table 2

[0217]

[0218] As shown in Table 2, both small and large distributed bandwidths correspond to specific transmit power gains.

[0219] For a STA transmitting a DRU, it can transmit at a higher power than a RRU. For example, for a 52-tone DRU within an 80MHz bandwidth, there can be only one tone per MHz. In contrast, a 52-tone RRU has approximately 13 tones per MHz. In this case, with a PSD limit of -1dBm / MHz within the 6GHz LPI band, using a DRU can improve power by 11dB for a 52-tone RU.

[0220] The transmission power is (10*log10(12.8)=11.07dB). For example, for 80MHz uplink OFDMA transmission, in the case of 8 users, each user uses a 106-tone DRU, compared with each user using a 106-tone RRU, the overall performance can be improved by 8.06dB.

[0221] Increasing transmission power enables more advanced modulation and coding schemes (MCS) or allows for greater distances.

[0222] Some design principles for DRUs are as follows:

[0223] 1. Maximize the transmit power of each tone by minimizing the number of tones per MHz (i.e., increasing the interval between tones in a RU);

[0224] 2. Tones in a DRU should be distributed as evenly as possible to achieve simplification and balance in terms of smoothing, phase, and implementation.

[0225] DRUs play a crucial role in uplink Orthogonal Frequency Division Multiple Access (OFDMA). For example, multiple STAs can use DRUs to increase transmit power, and different STAs can use different tones; that is, the DRU consists of different tones for different STAs. Compared to using RRUs of the same size, all tones can achieve higher transmit power, thus greatly improving overall spectral efficiency.

[0226] Therefore, a site can transmit PPDU based on RRU or DRU. In this case, how to configure the access point to transmit PPDU based on DRU to reduce the access point's configuration overhead is an urgent problem to be solved.

[0227] The technical solutions of this application are described in detail below through specific embodiments. The above-mentioned related technologies are optional solutions and can be combined with the technical solutions of the embodiments of this application in any way, all of which fall within the protection scope of the embodiments of this application.

[0228] Figure 2 is a schematic interactive diagram of a wireless communication method 200 according to an embodiment of this application. As shown in Figure 2, the method 200 includes at least the following:

[0229] S210, the access point sends a trigger frame;

[0230] Correspondingly, the site receives the trigger frame;

[0231] The trigger frame includes configuration information for transmitting PPDU;

[0232] S220, the station sends a PPDU according to the configuration information;

[0233] Correspondingly, the access point receives the PPDU based on the configuration information.

[0234] In some embodiments, the configuration information may be related configurations for the station to transmit PPDU based on DRU, such as the transmission method of the station to send PPDU based on DRU, such as the DBW used by the station to send PPDU based on DRU, and the DRU allocation information of the station to send PPDU based on DRU.

[0235] In some embodiments, the configuration information includes, but is not limited to, at least one of the following:

[0236] Resource Unit (RU) type indicator, used to indicate that the RU type for transmitting the PPDU is a contiguous resource unit (e.g., RRU) or a DRU;

[0237] Distributed bandwidth (DBW) indicator is used to indicate the DBW used for DRU-based PPDU transmission;

[0238] DRU allocation indication is used to transmit PPDU based on DRU allocation information.

[0239] In some embodiments, the configuration information is indicated by at least one of the following fields in the trigger frame:

[0240] Common Info field;

[0241] Special User Info field;

[0242] User Info field.

[0243] It should be noted that, in the embodiments of this application, the configuration information can be carried by existing bits (e.g., reserved bits, disregard bits) in at least one of the above fields. For example, the existing bits (e.g., reserved bits, disregard bits) in at least one of the above fields can be redefined to carry the configuration information, or new bits can be added to at least one of the above fields to carry the configuration information. This application does not make specific limitations in this regard.

[0244] In some embodiments, the candidate DBW that a site can use for transmitting PPDU based on DRU may include at least one of the following: 20MHz, 40MHz, 80MHz, and 160MHz.

[0245] Optionally, when transmitting PPDU based on DRU, the PPDU bandwidth can be constrained to be continuous or indivisible when it is less than or equal to 80MHz. This helps to ensure high throughput for individual users.

[0246] Optionally, when transmitting PPDUs based on DRUs, and the PPDU bandwidth is greater than 80MHz, the PPDU bandwidth can be continuous or discontinuous, meaning the PPDU bandwidth is segmentable. For example, when the PPDU bandwidth is 160MHz, this 160MHz can be a continuous 160MHz, or it can be a combination of two discrete 80MHz bands. As another example, when the PPDU bandwidth is 320MHz, this 320MHz can be a continuous 320MHz, or it can be a combination of four discrete 80MHz bands.

[0247] In some embodiments, the DBW indication is indicated by a target information field in the trigger frame;

[0248] The target information domain includes a public information domain and a special user information domain; or

[0249] The target information domain includes a public information domain and a user information domain; or

[0250] The target information domain includes a special user information domain and a user information domain; or

[0251] The target information domain includes the user information domain.

[0252] In some specific embodiments, the DBW indication is indicated by at least one bit in the target information field, wherein the at least one bit is set in the following at least one bit of the target information field:

[0253] Reserved bits, ignored bits, and newly added bits. By using reserved bits, ignored bits, or newly added bits in the target information field of the trigger frame to carry the DBW indication, the meaning of existing bits in the trigger frame does not need to be changed, which can better support RRU-based PPDU transmission schemes.

[0254] Optionally, the at least one bit may include two bits, or more bits. This allows the access point to indicate at least four DBWs available for DRU-based PPDU transmission using at least two bits, which is beneficial for meeting the DBW requirements when transmitting PPDUs based on DRU.

[0255] In one specific embodiment, the DBW indication is provided through the Uplink Bandwidth (UL BW) subdomain in the Public Information Domain and the Uplink Bandwidth Extension (UL Bandwidth Extension) subdomain in the Special User Information Domain. Using this indication method, regardless of whether the site transmits PPDUs based on RRUs or DRUs, bandwidth-related information for PPDU transmission can be obtained based on the Uplink Bandwidth (UL BW) subdomain in the Public Information Domain and the Uplink Bandwidth Extension (UL Bandwidth Extension) subdomain in the Special User Information Domain.

[0256] In other words, regardless of whether the site transmits PPDU based on RRU or DRU, the site can use the same parsing method to parse the trigger frame (parsing both the UL BW subdomain and the UL Bandwidth Extension subdomain) to obtain bandwidth-related information for PPDU transmission. The difference lies in the different values ​​of the UL BW subdomain and the UL BandwidthExtension subdomain corresponding to the two transmission schemes.

[0257] Therefore, based on the DBW indication carrying method provided in the embodiments of this application, on the one hand, no additional information field is needed to carry the DBW indication, thereby reducing the configuration overhead of the access point; on the other hand, the site can use the same parsing method to parse the trigger frame to obtain the bandwidth-related information for PPDU transmission, which can reduce the parsing complexity of the site.

[0258] In one implementation, the combination of DBW and PPDU bandwidth used for DRU-based PPDU transmission is jointly indicated by the reserved values ​​of the UL BW subfield in the public information domain and the ULBandwidth Extension subfield in the special user information domain.

[0259] Optionally, when reserving values ​​in the UL BW subdomain and UL Bandwidth Extension subdomain, the access point can be implicitly instructed to configure the site to transmit PPDU based on DRU. Therefore, the access point does not need to send RU type indication to the site.

[0260] Table 3 illustrates the implementation method provided in this application for jointly indicating the DBW and PPDU bandwidth through the UL BW subdomain and the UL Bandwidth Extension subdomain.

[0261] Table 3

[0262]

[0263] It should be noted that the values ​​of the UL BW subdomain and UL Bandwidth Extension subdomain mentioned above and their correspondence with the indicated DBW and PPDU bandwidth are only examples. In practical applications, only all the contents in Table 3 may be included, or only some of the contents may be included. This application does not limit this.

[0264] As can be seen from Table 3, after receiving the trigger frame, the site can determine the bandwidth information used to transmit the PPDU by jointly using the UL BW subdomain in the public information domain and the UL Bandwidth Extension subdomain in the special user information domain.

[0265] In some embodiments, the RU type indication is indicated by at least one bit in at least one of the following fields of the trigger frame:

[0266] Public information domain;

[0267] Special user information field;

[0268] User information field.

[0269] For example, the RU type indication can be carried by existing bits (e.g., reserved bits, disregard bits) in at least one of the above fields. For example, existing bits can be redefined to carry the RU type indication, or new bits can be added to at least one of the above fields to carry the RU type indication. This application does not make specific limitations on this.

[0270] In some specific embodiments, the at least one bit may be set among the following bits in the at least one field: reserved bit, ignored bit, and newly added bit.

[0271] In some specific embodiments, when the bandwidth of the PPDU is 20MHz, the RU type indication is indicated by one bit in the public information field, the special user information field, or the user information field. For example, a value of 0 indicates that the PPDU is transmitted based on an RRU, a value of 1 indicates that the PPDU is transmitted based on a DRU, or vice versa; this application does not limit this.

[0272] For example, when the bandwidth of the PPDU is 20MHz, the value of this 1 bit can be defined as shown in Table 4:

[0273] Table 4

[0274]

[0275] In some specific embodiments, when the bandwidth of the PPDU is 40MHz, the RU type indication is indicated by one bit in the public information field, the special user information field, or the user information field. For example, a value of 0 indicates that the PPDU is transmitted based on an RRU, a value of 1 indicates that the PPDU is transmitted based on a DRU, or vice versa; this application does not limit this.

[0276] For example, when the bandwidth of the PPDU is 40MHz, the value of this 1 bit can be defined as shown in Table 5:

[0277] Table 5

[0278]

[0279] In some specific embodiments, when the bandwidth of the PPDU is 80MHz, the RU type indication is indicated by one bit in the public information field, the special user information field, or the user information field. For example, a value of 0 indicates that the PPDU is transmitted based on an RRU, a value of 1 indicates that the PPDU is transmitted based on a DRU, or vice versa; this application does not limit this.

[0280] For example, when the bandwidth of the PPDU is 80MHz, the value of this 1 bit can be defined as shown in Table 6:

[0281] Table 6

[0282]

[0283] In some specific embodiments, when the bandwidth of the PPDU is 160MHz, the RU type indication is indicated by one bit in the public information field, the special user information field, or the user information field. For example, a value of 0 indicates that the PPDU is transmitted based on an RRU, a value of 1 indicates that the PPDU is transmitted based on a DRU, or vice versa; this application does not limit this.

[0284] For example, when the bandwidth of the PPDU is 160MHz, the value of this 1 bit can be defined as shown in Table 7:

[0285] Table 7

[0286]

[0287] In some specific embodiments, when the bandwidth of the PPDU is 80MHz+80MHz, the RU type indication is indicated by 2 bits in the at least one field, wherein each of the 2 bits corresponds to one of the two 80MHz bands, and each bit is used to indicate the RU type used for transmitting the PPDU on the corresponding 80MHz bandwidth. For example, a value of 0 for each bit indicates that the PPDU is transmitted based on RRU on the corresponding 80MHz bandwidth, a value of 1 indicates that the PPDU is transmitted based on DRU on the corresponding 80MHz bandwidth, or vice versa; this application does not limit this.

[0288] For example, when the bandwidth of the PPDU is 80MHz+80MHz, the value of this 2-bit can be defined as shown in Table 8:

[0289] Table 8

[0290]

[0291] In some specific embodiments, when the bandwidth of the PPDU is 320MHz, the RU type indication is indicated by one bit in the public information field, the special user information field, or the user information field. For example, a value of 0 indicates that the PPDU is transmitted based on an RRU, a value of 1 indicates that the PPDU is transmitted based on a DRU, or vice versa; this application does not limit this.

[0292] For example, when the bandwidth of the PPDU is 320MHz, the value of this 1 bit can be defined as shown in Table 9:

[0293] Table 9

[0294]

[0295] In some specific embodiments, when the bandwidth of the PPDU is 80MHz+80MHz+80MHz+80MHz, the RU type indication is indicated by 4 bits in the at least one field, wherein each of the 4 bits corresponds to one of the four 80MHz bands, and each bit is used to indicate the RU type used for transmitting the PPDU on the corresponding 80MHz bandwidth. For example, a value of 0 for each bit indicates that the PPDU is transmitted based on RRU on the corresponding 80MHz bandwidth, a value of 1 indicates that the PPDU is transmitted based on DRU on the corresponding 80MHz bandwidth, or vice versa; this application does not limit this.

[0296] For example, when the bandwidth of the PPDU is 80MHz+80MHz+80MHz+80MHz, the values ​​of these 4 bits can be defined as shown in Table 10:

[0297] Table 10

[0298]

[0299] In some embodiments of this application, the DRU allocation indication is indicated by at least one of the following fields of the trigger frame:

[0300] Resource Unit Allocation subfield in the User Information domain;

[0301] PS160 subfield in the user information field;

[0302] Uplink bandwidth subfield (UL BW) in the public information domain;

[0303] The uplink bandwidth extension subfield (UL BW Extension) within the special user information field.

[0304] Using this indication method, when a station transmits PPDU based on RRU or DRU, it can obtain the resource allocation information for PPDU transmission based on the above fields. That is, regardless of whether the station transmits PPDU based on RRU or DRU, the station can use the same parsing method to parse the trigger frame (parsing at least one of the above fields) to obtain the resource allocation information for PPDU transmission. The difference lies in the different resource locations corresponding to the two transmission schemes.

[0305] Therefore, based on the DRU allocation indication carrying method provided in the embodiments of this application, on the one hand, no additional indication field is needed to carry the DRU allocation indication, thereby reducing the configuration overhead of the access point; on the other hand, the site can use the same parsing method to parse the trigger frame to obtain the DRU allocation information for PPDU transmission, which can reduce the parsing complexity of the site.

[0306] In some embodiments, the DRU allocation information includes at least one of the following:

[0307] The DRU size used to transmit the PPDU, such as 26-tone, 52-tone, 106-tone, etc.;

[0308] The DRU location used to transmit the PPDU, such as the physical layer DRU index;

[0309] The DRU index used to transmit the PPDU.

[0310] Table 11 shows the correspondence between the values ​​and meanings of a field used to carry a DRU allocation indication, as provided in an embodiment of this application.

[0311] Table 11

[0312]

[0313]

[0314] It should be noted that the correspondence between the values ​​and meanings of the above fields is only an example. In practical applications, it may include only all the contents of Table 11 or only some of the contents. This application does not limit this.

[0315] The following description, with reference to Figure 3, illustrates the PPDU transmission scheme based on DRU provided in this application. As shown in Figure 3, the scheme may include the following steps:

[0316] S301, the access point sends a trigger frame to the site, which is used to configure or instruct the site to transmit PPDU based on DRU.

[0317] For example, the trigger frame may include at least one of the following:

[0318] RU type indicator, used to indicate that the RU type for transmitting the PPDU is either a continuous resource unit or a distributed tone resource unit (DRU);

[0319] DBW indicator is used to indicate the DBW used for DRU-based PPDU transmission;

[0320] DRU allocation indication is used to transmit PPDU based on DRU allocation information.

[0321] In some embodiments, the RU type indication can be indicated by at least one of the following fields in the trigger frame: public information field, special user information field, and user information field.

[0322] In some embodiments, the DBW indication can be indicated by the common information field and the special user information field in the trigger frame, or by the common information field and the user information field in the trigger frame, or by the special user information field and the user information field in the trigger frame, or by the user information field in the trigger frame.

[0323] In some embodiments, the DRU allocation indication may be indicated by at least one of the following fields of the trigger frame:

[0324] Resource unit allocation subdomain in the user information domain;

[0325] PS160 subdomain in the User Information domain;

[0326] Uplink bandwidth subdomain in the public information domain;

[0327] Uplink bandwidth extension subdomain in the special user information domain.

[0328] S302, the station receives the trigger frame and parses the trigger frame to obtain the PPDU bandwidth.

[0329] For example, the uplink bandwidth subdomain in the public information domain and the uplink bandwidth extension subdomain in the special user information domain are parsed to obtain the bandwidth information when transmitting PPDUs based on DRU. Optionally, the parsing method for this bandwidth information can be the same as the parsing method for PPDU bandwidth when transmitting PPDUs based on RRU, which can be compatible with RRU-based PPDU transmission schemes.

[0330] S303, the station parses the trigger frame to obtain the RU type indication.

[0331] For example, the reserved bits, ignored bits, or added bits in at least one of the fields in the trigger frame, such as the public information field, special user information field, and user information field, are parsed to obtain the RU type indication.

[0332] S304, when the RU type indication is based on the DRU transmission PPDU, the trigger frame is parsed to obtain the DBW indication and the DRU allocation indication.

[0333] For example, the DBW used to transmit PPDU based on DRU can be obtained by parsing the field carrying the DBW indication in the trigger frame.

[0334] For example, the DRU allocation information used by the DRU-based PPDU can be obtained by parsing the field carrying the DRU allocation indication in the trigger frame.

[0335] S305, based on the bandwidth information, DBW and DRU allocation information of the acquired DRU-based transmission PPDU, send the PPDU.

[0336] In summary, in the embodiments of this application, the access point can utilize existing information fields in the trigger frame to carry configuration information for DRU-based PPDU transmission. For example, the RU type indication or DBW indication can be carried using reserved bits, ignored bits, or added bits in the existing information fields of the trigger frame, eliminating the need for additional information fields to carry the RU type indication or DBW indication, thereby reducing the configuration overhead of the access point. As another example, the RU allocation-related fields of RRU-based PPDU transmission can be reused to carry DRU allocation information, eliminating the need for additional information fields to carry the DRU allocation indication, thereby reducing the configuration overhead of the access point. Furthermore, the site can use the same parsing method to parse the trigger frame to obtain the DRU allocation information for PPDU transmission, reducing the parsing complexity of the site.

[0337] The method embodiments of this application have been described in detail above with reference to Figures 2 and 3. The device embodiments of this application have been described in detail below with reference to Figures 4 to 7. It should be understood that the device embodiments correspond to the method embodiments, and similar descriptions can be referred to the method embodiments.

[0338] Figure 4 is a schematic block diagram of a communication device 500 according to an embodiment of this application. The communication device 500 can be a station, or a component within a station, such as a chip, circuit, or module. The communication device 500 of Figure 4 includes:

[0339] The receiving module 510 is used to receive a trigger frame sent by the access point, wherein the trigger frame includes a distributed bandwidth (DBW) indication, wherein the DBW indication is used to indicate the DBW used for transmitting physical layer protocol data units (PPDUs) based on distributed tone resource units (DRUs), and the DBW indication is indicated by the target information field in the trigger frame.

[0340] The sending module 520 is used to send a PPDU according to the trigger frame;

[0341] The target information domain includes a public information domain and a special user information domain; or

[0342] The target information domain includes a public information domain and a user information domain; or

[0343] The target information domain includes a special user information domain and a user information domain; or

[0344] The target information domain includes the user information domain.

[0345] In some implementations, the DBW indication is indicated by at least one bit in the target information field, wherein the at least one bit is set in at least one of the following bits in the target information field: reserved bit, ignored bit, and added bit.

[0346] In some implementations, the target information domain includes a public information domain and a special user information domain, and the DBW indication is indicated through the uplink bandwidth subdomain in the public information domain and the uplink bandwidth extension domain in the special user information domain.

[0347] In some implementations, the uplink bandwidth subdomain in the public information domain and the uplink bandwidth extension domain in the special user information domain are used to jointly indicate the DBW used for transmitting PPDU based on DRU and the bandwidth of the PPDU.

[0348] In some implementations, the trigger frame further includes a Resource Unit (RU) type indication, which indicates that the RU type transmitting the PPDU is a contiguous resource unit or a DRU, wherein the RU type indication is indicated by at least one bit in at least one of the following fields of the trigger frame:

[0349] Public information domain;

[0350] Special user information field;

[0351] User information field.

[0352] In some implementations, when the bandwidth of the PPDU is 20MHz, the RU type indication is indicated through the public information field, the special user information field, or 1 bit in the user information field; or

[0353] When the bandwidth of the PPDU is 40MHz, the RU type indication is indicated by the public information field, the special user information field, or 1 bit in the user information field; or

[0354] When the bandwidth of the PPDU is 80MHz, the RU type indication is indicated by the public information field, the special user information field, or 1 bit in the user information field; or

[0355] When the bandwidth of the PPDU is 160MHz, the RU type indication is indicated by the public information field, the special user information field, or 1 bit in the user information field; or

[0356] When the bandwidth of the PPDU is 80MHz+80MHz, the RU type indication is indicated by 2 bits in the at least one field, wherein each of the 2 bits corresponds to one of the two 80MHz bands, and each bit is used to indicate the RU type used for transmitting the PPDU on the corresponding 80MHz bandwidth; or

[0357] When the bandwidth of the PPDU is 320MHz, the RU type indication is indicated by the common information field, the special user information field, or 1 bit in the user information field; or

[0358] When the bandwidth of the PPDU is 80MHz+80MHz+80MHz+80MHz, the RU type indication is indicated by 4 bits in the at least one field, wherein each of the 4 bits corresponds to one of the four 80MHz bands, and each bit is used to indicate the RU type used to transmit the PPDU on the corresponding 80MHz bandwidth.

[0359] In some implementations, the at least one bit is set in at least one of the following at least one field:

[0360] Reserved bits, ignored bits, added bits.

[0361] In some implementations, the trigger frame further includes a DRU allocation indication, which indicates DRU allocation information used for transmitting PPDUs based on DRUs; wherein the DRU allocation indication is indicated by at least one of the following fields of the trigger frame:

[0362] Public information domain;

[0363] Special user information field;

[0364] User information field.

[0365] In some implementations, the DRU allocation indication is indicated by at least one of the following fields of the trigger frame:

[0366] Resource unit allocation subdomain in the user information domain;

[0367] PS160 subdomain in the user information domain;

[0368] Uplink bandwidth subdomain in the public information domain;

[0369] Uplink bandwidth extension subdomain in the special user information domain.

[0370] In some implementations, the DRU allocation information includes at least one of the following:

[0371] The size of the DRU used to transmit the PPDU;

[0372] The DRU location used to transmit the PPDU;

[0373] DRU index used for transmitting the PPDU.

[0374] Optionally, in some embodiments, the aforementioned transmitting or receiving module may be a communication interface or transceiver, or an input / output interface of a communication chip or system-on-a-chip.

[0375] It should be understood that the apparatus 500 according to the embodiments of this application may correspond to the station in the method embodiments of this application, and the above and other operations and / or functions of each unit in the apparatus 500 are respectively to implement the corresponding process of the station in the method embodiments shown in FIG2 to FIG3. For the sake of brevity, they will not be described in detail here.

[0376] Figure 5 shows a schematic block diagram of another communication device 600 according to an embodiment of this application. The communication device 600 can be an access point, or a component within the access point, such as a chip, circuit, or module.

[0377] As shown in Figure 5, the communication device 600 includes:

[0378] The sending module 610 is used to send a trigger frame to the station, wherein the trigger frame includes a distributed bandwidth (DBW) indication, wherein the DBW indication is used to indicate the DBW used by the physical layer protocol data unit (PPDU) based on the distributed tone resource unit (DRU), and the DBW indication is indicated by the common information field and the special user information field in the trigger frame.

[0379] The receiving module 620 is used to receive PPDU according to the trigger frame.

[0380] In some implementations, the DBW indication is indicated by at least one bit in the target information field, wherein the at least one bit is set in at least one of the following bits in the target information field: reserved bit, ignored bit, and added bit.

[0381] In some implementations, the target information domain includes a public information domain and a special user information domain, and the DBW indication is indicated through the uplink bandwidth subdomain in the public information domain and the uplink bandwidth extension domain in the special user information domain.

[0382] In some implementations, the uplink bandwidth subdomain in the public information domain and the uplink bandwidth extension domain in the special user information domain are used to jointly indicate the DBW used for transmitting PPDU based on DRU and the bandwidth of the PPDU.

[0383] In some implementations, the trigger frame further includes a Resource Unit (RU) type indication, which indicates that the RU type transmitting the PPDU is a contiguous resource unit or a DRU, wherein the RU type indication is indicated by at least one bit in at least one of the following fields of the trigger frame:

[0384] Public information domain;

[0385] Special user information field;

[0386] User information field.

[0387] In some implementations, when the bandwidth of the PPDU is 20MHz, the RU type indication is indicated through the public information field, the special user information field, or 1 bit in the user information field; or

[0388] When the bandwidth of the PPDU is 40MHz, the RU type indication is indicated by the public information field, the special user information field, or 1 bit in the user information field; or

[0389] When the bandwidth of the PPDU is 80MHz, the RU type indication is indicated by the public information field, the special user information field, or 1 bit in the user information field; or

[0390] When the bandwidth of the PPDU is 160MHz, the RU type indication is indicated by the common information field, the special user information field, or 1 bit in the user information field; or

[0391] When the bandwidth of the PPDU is 80MHz+80MHz, the RU type indication is indicated by 2 bits in the at least one field, wherein each of the 2 bits corresponds to one of the two 80MHz bands, and each bit is used to indicate the RU type used for transmitting the PPDU on the corresponding 80MHz bandwidth; or

[0392] When the bandwidth of the PPDU is 320MHz, the RU type indication is indicated by the common information field, the special user information field, or 1 bit in the user information field; or

[0393] When the bandwidth of the PPDU is 80MHz+80MHz+80MHz+80MHz, the RU type indication is indicated by 4 bits in the at least one field, wherein each of the 4 bits corresponds to one of the four 80MHz bands, and each bit is used to indicate the RU type used to transmit the PPDU on the corresponding 80MHz bandwidth.

[0394] In some implementations, the at least one bit is set in at least one of the following at least one field:

[0395] Reserved bits, ignored bits, added bits.

[0396] In some implementations, the trigger frame further includes a DRU allocation indication, which indicates DRU allocation information used for transmitting PPDUs based on DRUs; wherein the DRU allocation indication is indicated by at least one of the following fields of the trigger frame:

[0397] Public information domain;

[0398] Special user information field;

[0399] User information field.

[0400] In some implementations, the DRU allocation indication is indicated by at least one of the following fields of the trigger frame:

[0401] Resource unit allocation subdomain in the user information domain;

[0402] PS160 subdomain in the User Information domain;

[0403] Uplink bandwidth subdomain in the public information domain;

[0404] Uplink bandwidth extension subdomain in the special user information domain.

[0405] In some implementations, the DRU allocation information includes at least one of the following:

[0406] The size of the DRU used to transmit the PPDU;

[0407] The DRU location used to transmit the PPDU;

[0408] DRU index used for transmitting the PPDU.

[0409] Optionally, in some embodiments, the aforementioned transmitting or receiving module unit may be a communication interface or transceiver, or an input / output interface of a communication chip or system-on-a-chip. The aforementioned processing module may be one or more processors.

[0410] It should be understood that the device 600 according to the embodiments of this application may correspond to the access point in the method embodiments of this application, and the above and other operations and / or functions of each unit in the device 600 are respectively to implement the corresponding process of the access point in the embodiments of FIG2 to FIG3. For the sake of brevity, they will not be described in detail here.

[0411] Figure 6 is a schematic structural diagram of a communication device 700 provided in an embodiment of this application. The communication device 700 shown in Figure 6 includes a processor 710, which can call and run computer programs from memory to implement the methods in the embodiments of this application.

[0412] Optionally, as shown in FIG6, the communication device 700 may further include a memory 720. The processor 710 can call and run a computer program from the memory 720 to implement the methods in the embodiments of this application. For example, when the communication device 700 is a station, the processor 710 can call and run a computer program from the memory 720 to implement the various steps of the method embodiments executed by the station, achieving the same technical effect. When the communication device 700 is an access point, the processor 710 can call and run a computer program from the memory 720 to implement the various steps of the method embodiments executed by the access point, achieving the same technical effect.

[0413] Alternatively, the memory 720 may be a separate device independent of the processor 710, or it may be integrated into the processor 710.

[0414] Optionally, as shown in FIG6, the communication device 700 may further include a transceiver 730, and the processor 710 may control the transceiver 730 to communicate with other devices. Specifically, it may send information or data to other devices or receive information or data sent by other devices.

[0415] Optionally, transceiver 730 may include a transmitter and a receiver. Transceiver 730 may further include antennas, and the number of antennas may be one or more.

[0416] Figure 7 is a schematic structural diagram of a chip according to an embodiment of this application. The chip 800 shown in Figure 7 includes a processor 810, which can call and run computer programs from memory to implement the methods in the embodiments of this application.

[0417] Optionally, as shown in FIG7, chip 800 may further include memory 820. Processor 810 can retrieve and run computer programs from memory 820 to implement the methods in the embodiments of this application.

[0418] Alternatively, the memory 820 may be a separate device independent of the processor 810, or it may be integrated into the processor 810.

[0419] Optionally, the chip 800 may also include an input interface 830. The processor 810 can control the input interface 830 to communicate with other devices or chips, for example, to acquire information or data sent by other devices or chips.

[0420] Optionally, the chip 800 may also include an output interface 840. The processor 810 can control the output interface 840 to communicate with other devices or chips, for example, to output information or data to other devices or chips.

[0421] Optionally, the chip can be applied to the access point in the embodiments of this application, and the chip can implement the corresponding processes implemented by the access point in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0422] Optionally, the chip can be applied to the site in the embodiments of this application, and the chip can implement the corresponding processes implemented by the site in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0423] It should be understood that the chip mentioned in the embodiments of this application may also be referred to as a system-on-a-chip, system chip, chip system, or system-on-a-chip, etc.

[0424] Figure 8 is a schematic block diagram of a communication system 900 provided in an embodiment of this application. As shown in Figure 8, the communication system 900 includes a station 910 and an access point 920.

[0425] The site 910 can be used to implement the corresponding functions implemented by the site in the above method, and the access point 920 can be used to implement the corresponding functions implemented by the access point in the above method. For the sake of brevity, these will not be elaborated here.

[0426] It should be understood that the processor in the embodiments of this application may be an integrated circuit chip with signal processing capabilities. In implementation, the steps of the above method embodiments can be completed by integrated logic circuits in the processor's hardware or by instructions in software form. The processor described above can be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. It can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of this application. The general-purpose processor can be a microprocessor or any conventional processor. The steps of the methods disclosed in the embodiments of this application can be directly embodied in the execution of a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software modules can be located in random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, or other mature storage media in the art. The storage medium is located in memory, and the processor reads information from the memory and, in conjunction with its hardware, completes the steps of the above method.

[0427] It is understood that the memory in the embodiments of this application can be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory. The non-volatile memory can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. The volatile memory can be random access memory (RAM), which is used as an external cache. By way of example, but not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDR SDRAM), Enhanced Synchronous DRAM (ESDRAM), Synchlink DRAM (SLDRAM), and Direct Rambus RAM (DR RAM). It should be noted that the memory used in the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0428] It should be understood that the above-described memory is exemplary and not a limiting description. For example, the memory in the embodiments of this application may also be static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct memory bus RAM (DR RAM), etc. That is to say, the memory in the embodiments of this application is intended to include, but is not limited to, these and any other suitable types of memory.

[0429] This application also provides a readable storage medium storing a computer program that, when executed by a processor, implements the various processes of the above method embodiments.

[0430] Optionally, the readable storage medium can be applied to the access point in the embodiments of this application, and the computer program causes the processor to execute the corresponding process implemented by the access point in the method embodiments of this application. To avoid repetition, it will not be described again here.

[0431] Optionally, the readable storage medium can be applied to the site in the embodiments of this application, and the computer program causes the processor to execute the corresponding process implemented by the site in the method embodiments of this application. To avoid repetition, it will not be described again here.

[0432] This application also provides a computer program product, including a computer program that, when executed by a processor, implements the various processes of the above-described method embodiments.

[0433] Optionally, the computer program product can be applied to the access point in the embodiments of this application, and the computer program causes the processor to execute the corresponding process implemented by the access point in the method embodiments of this application. To avoid repetition, it will not be described again here.

[0434] Optionally, the computer program product can be applied to the site in the embodiments of this application, and the computer program causes the processor to execute the corresponding process implemented by the site in the method embodiments of this application. To avoid repetition, it will not be described again here.

[0435] This application also provides a computer program. When executed by a processor, this computer program implements the various processes of the above-described method embodiments.

[0436] Optionally, the computer program can be applied to the access point in the embodiments of this application. The computer program causes the processor to execute the corresponding process implemented by the access point in the method embodiments of this application. To avoid repetition, it will not be described again here.

[0437] Optionally, the computer program can be applied to the site in the embodiments of this application. The computer program causes the processor to execute the corresponding process implemented by the site in the method embodiments of this application. To avoid repetition, it will not be described again here.

[0438] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0439] Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0440] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0441] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0442] In addition, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0443] If the aforementioned functions are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0444] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A wireless communication method, characterized in that, include: The station receives a trigger frame sent by the access point, wherein the trigger frame includes a distributed bandwidth (DBW) indication, wherein the DBW indication is used to indicate the DBW used for transmitting physical layer protocol data units (PPDUs) based on distributed tone resource units (DRUs), and the DBW indication is indicated by a target information field in the trigger frame; the station then sends a PPDU according to the trigger frame; wherein the target information field includes a public information field and a special user information field; or the target information field includes a public information field and a user information field; or the target information field includes a special user information field and a user information field; or the target information field includes a user information field.

2. The method according to claim 1, characterized in that, The DBW indication is indicated by at least one bit in the target information field, wherein the at least one bit is set in at least one of the following bits in the target information field: reserved bit, ignored bit, and added bit.

3. The method according to claim 1 or 2, characterized in that, The target information domain includes a public information domain and a special user information domain. The DBW indication is indicated through the uplink bandwidth subdomain in the public information domain and the uplink bandwidth extension domain in the special user information domain.

4. The method according to claim 3, characterized in that, The uplink bandwidth subdomain in the public information domain and the uplink bandwidth extension domain in the special user information domain are used to jointly indicate the DBW used for DRU-based PPDU transmission and the bandwidth of the PPDU.

5. The method according to any one of claims 1-4, characterized in that, The trigger frame also includes a Resource Unit (RU) type indication, which indicates that the RU type transmitting the PPDU is a Continuous Resource Unit (CRU) or a DRU. The RU type indication is indicated by at least one bit of at least one of the following fields in the trigger frame: a public information field; a special user information field; and a user information field.

6. The method according to claim 5, characterized in that, When the bandwidth of the PPDU is 20MHz, the RU type indication is indicated by 1 bit in the common information field, the special user information field, or the user information field; or when the bandwidth of the PPDU is 40MHz, the RU type indication is indicated by 1 bit in the common information field, the special user information field, or the user information field; or when the bandwidth of the PPDU is 80MHz, the RU type indication is indicated by 1 bit in the common information field, the special user information field, or the user information field; or when the bandwidth of the PPDU is 160MHz, the RU type indication is indicated by 1 bit in the common information field, the special user information field, or the user information field; or when the bandwidth of the PPDU is 80MHz+80MHz, the RU... The type indication is indicated by 2 bits in the at least one field, wherein each of the 2 bits corresponds to one of the two 80MHz bands, and each bit is used to indicate the RU type used for transmitting the PPDU on the corresponding 80MHz bandwidth; or, if the bandwidth of the PPDU is 320MHz, the RU type indication is indicated by 1 bit in the public information field, the special user information field, or the user information field; or, if the bandwidth of the PPDU is 80MHz+80MHz+80MHz+80MHz, the RU type indication is indicated by 4 bits in the at least one field, wherein each of the 4 bits corresponds to one of the four 80MHz bands, and each bit is used to indicate the RU type used for transmitting the PPDU on the corresponding 80MHz bandwidth.

7. The method according to claim 5 or 6, characterized in that, The at least one bit is set in at least one of the following at least one fields: reserved bit, ignored bit, added bit.

8. The method according to any one of claims 1-7, characterized in that, The trigger frame also includes a DRU allocation indication, which is used to indicate the DRU allocation information used for transmitting PPDU based on DRU; wherein the DRU allocation indication is indicated by at least one of the following fields of the trigger frame: a public information field; a special user information field; and a user information field.

9. The method according to claim 8, characterized in that, The DRU allocation indication is indicated through at least one of the following fields in the trigger frame: the resource unit allocation subfield in the user information field; the PS160 subfield in the user information field; the uplink bandwidth subfield in the public information field; and the uplink bandwidth extension subfield in the special user information field.

10. The method according to any one of claims 1-9, characterized in that, The DRU allocation information includes at least one of the following: the DRU size for transmitting the PPDU; the DRU location for transmitting the PPDU; and the DRU index for transmitting the PPDU.

11. A wireless communication method, characterized in that, include: The access point sends a trigger frame to the site, wherein the trigger frame includes a distributed bandwidth (DBW) indication, wherein the DBW indication is used to indicate the DBW used for transmitting Physical Layer Protocol Data Units (PPDUs) based on Distributed Tone Resource Units (DRUs), and the DBW indication is indicated by a target information field in the trigger frame; the PPDU is received according to the trigger frame; wherein the target information field includes a public information field and a special user information field; or the target information field includes a public information field and a user information field; or the target information field includes a special user information field and a user information field; or the target information field includes a user information field.

12. A wireless communication device, characterized in that, include: A receiving module is configured to receive a trigger frame sent by an access point, wherein the trigger frame includes a distributed bandwidth (DBW) indication, wherein the DBW indication is used to indicate the DBW used for transmitting Physical Layer Protocol Data Units (PPDUs) based on Distributed Tone Resource Units (DRUs), and the DBW indication is indicated by a target information field in the trigger frame; a sending module is configured to receive PPDUs according to the trigger frame; wherein the target information field includes a common information field and a special user information field; or the target information field includes a common information field and a user information field; or the target information field includes a special user information field and a user information field; or the target information field includes a user information field.

13. A wireless communication device, characterized in that, include: A sending module is configured to send a trigger frame to a station, wherein the trigger frame includes a distributed bandwidth (DBW) indication, wherein the DBW indication is used to indicate the DBW used for transmitting Physical Layer Protocol Data Units (PPDUs) based on Distributed Tone Resource Units (DRUs), and the DBW indication is indicated by a target information field in the trigger frame; a receiving module is configured to receive a PPDU according to the trigger frame; wherein the target information field includes a common information field and a special user information field; or the target information field includes a common information field and a user information field; or the target information field includes a special user information field and a user information field; or the target information field includes a user information field.

14. A site, characterized in that, include: A processor and a memory for storing a computer program, the processor for calling and running the computer program stored in the memory to perform the method as described in any one of claims 1 to 10.

15. An access point, characterized in that, include: A processor and a memory for storing computer programs, the processor for calling and running the computer programs stored in the memory to perform the method as described in claim 11.

16. A chip, characterized in that, include: A processor for retrieving and running a computer program from memory, causing a device having the chip mounted to perform the method as claimed in any one of claims 1 to 10, or the method as claimed in claim 11.

17. A readable storage medium, characterized in that, Used to store a computer program that causes a computer to perform the method as claimed in any one of claims 1 to 10, or the method as claimed in claim 11.

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