Abstract: This application relates to the field of wireless fidelity technologies, and in particular, to a resource indication method, an access point, and a station. The method includes: An access point generates a PPDU, and sends the PPDU, where the PPDU comprises a preamble puncturing information field; and where when the PPDU is in non-orthogonal frequency division multiple access (non-OFDMA) transmission mode, the preamble puncturing information field is used to indicate a puncturing status of an entire bandwidth corresponding to the PPDU; when the PPDU is in an orthogonal frequency division multiple access (OFDMA) transmission mode, the preamble puncturing information field is used to indicate a puncturing status of 80 MHz corresponding to a frequency domain fragment.

Abstract: In a channel listening method, a non-simultaneous transmit and receive multi-link device (NSTR MLD) receives a first response frame on a first link and a second response frame on a second link, wherein an end time of the first response frame is later than an end time of the second response frame, and the first link and the second link belong to a NSTR link pair. The NSTR MLD determines that at least one of the first response frame and the second response frame fails to be received. In response to the determination, the NSTR MLD performs channel listening in a first interframe space after the first response frame ends, wherein a duration of the first interframe space is less than or equal to a duration of a point coordination function interframe space (PIFS).

Abstract: A method includes an access point device that obtains a transmission opportunity (TXOP) in a wireless local area network (WLAN) and that allocates a first period in the TXOP to a non-access point device for data transmission. The access point device receives a first frame in the first period. An access address or a transmitter address of the first frame is associated with the non-access point device. The method further includes that the access point device keeps, based on the first frame, a network allocation vector (NAV) unchanged.

Abstract: A communication method includes a first communication device that sends, to a second communication device, a physical layer protocol data unit (PPDU) including indication information and M link adaptation blocks, where the indication information indicates a resource used for link adaptation, the M link adaptation blocks use different transmission parameters, and the resource is used to transmit the M link adaptation blocks. The second communication device returns, to the first communication device, a feedback result determined based on a measurement result corresponding to the M link adaptation blocks, so that the first communication device sends, based on the feedback result, a PPDU used for data transmission. Hence, the two communication devices complete link adaptation through one interaction, and do not need to perform a plurality of interactions.

Abstract: A communication method, includes: a first station in a multi-link station device obtain a channel on a first link through contention, and obtain a transmit opportunity (TXOP) on the first link; and the first station ends the TXOP before target sending time of a beacon frame of a second station, wherein the first station and the second station are stations of the multi-link station device, and when the first station performs sending or receiving, the second station is not capable of performing receiving or sending.

Abstract: This application relates to the field of wireless fidelity technologies, and in particular to an information indication method. The method includes: An access point (access point, AP) determines resource indication information, and sends the resource indication information. The resource indication information includes a plurality of bit sequences. A first bit sequence in the plurality of bit sequences corresponds to a first resource unit. The first resource unit is a resource unit in a resource block set that is allocated to a first station (station, STA) or a plurality of STAs. The resource block set includes at least two resource units. In the method provided in the embodiments of this application, two content channels are used to transmit an HE-SIG B to indicate that a plurality of resource units are allocated to one or more stations, to reduce signaling overheads.

Abstract: Embodiments of this application provide a communication method between multi-link devices and an apparatus, and relate to the field of communications technologies, to reduce power consumption of a station multi-link device. The method includes: a multi-link device includes a plurality of STAs, one STA operates on one of a plurality of links, and the STA determines a primary link in the plurality of links. A STA operating on the primary link in the multi-link device may receive information sent by the AP indicating whether the STA operating on the primary link has a downlink traffic, and/or information indicating whether a STA operating on a link other than the primary link has a downlink traffic. Therefore, the STA operating on the primary link may determine a link on which the STA having a downlink traffic operates in the multi-link device.

Abstract: Embodiments of this application provides a multi-link synchronous transmission method and apparatus. The method includes: The transmit MLD sends a first transmission frame to the receive MLD at a first moment on the first link when a first condition is met. The first moment is determined based on a second moment and/or a third moment, the second moment is a moment at which a backoff counter of the first link decreases to 0, and the third moment is a sending moment of a second transmission frame on the second link. The first condition includes: (1) The backoff counter of the first link is 0, and (2) the second transmission frame is located in a transmission opportunity TXOP on the second link.

Abstract: This application discloses communication methods and apparatuses. In an example method, a physical layer protocol data unit (PPDU) is generated and sent. The PPDU includes multiple resource unit allocation subfields. The multiple resource unit allocation subfields include a resource unit allocation subfield corresponding to a multiple resource unit (MRU) to indicate that a 242-tone resource unit (RU) corresponding to the resource unit allocation subfield belongs to the MRU. A number of resource unit allocation subfields corresponding to the MRU in a resource unit allocation subfield corresponding to each 80 MHz subblock in a bandwidth for transmitting the PPDU is for determining or indicating a type of the MRU. A station can determine, based on the number of resource unit allocation subfields corresponding to the MRU in the resource unit allocation subfield corresponding to each 80 MHz subblock, which type of MRU is included in the bandwidth for transmitting the PPDU.

Abstract: A method includes: generating, by an access point AP, a first frame, where the first frame includes P station information fields, each of the P station information fields corresponds to one resource unit RU allocated to a first station STA, P is a positive integer greater than 1, each station information field further includes end indication information, and the end indication information is used to indicate whether the station information field is the last station information field in the P station information fields. The AP may allocate P RUs to the first STA, and indicate the P RUs to the first STA through the P station information fields in the first frame. Therefore, a resource allocation manner of the AP can be more flexible, a frequency selective gain of an OFDMA system can be effectively improved, and a system capacity can be increased.

Abstract: This application provides example methods for sending data in a wireless network, and example related apparatuses. One example method includes determining, by a first device, a distributed resource unit (RU) allocated to the first device, where the distributed RU includes data subcarriers and pilot subcarriers, all subcarriers of the distributed RU are distributed on a first frequency band, a size of the first frequency band is 40 MHz, the first frequency band includes a maximum of 36 pilot subcarriers that are disposed at an interval, a quantity of pilot subcarriers included in the distributed RU is greater than or equal to 2, and at least two pilot subcarriers included in the distributed RU are spaced by at least M pilot subcarriers. The first device sends a physical layer protocol data unit (PPDU) on the distributed RU.

Abstract: A communication method and apparatus are provided, are applied to a wireless local area network system that supports the 802.11 series protocols, for example, a next-generation Wi-Fi protocol of IEEE 802.11ax, such as 802.11be, Wi-Fi 7, or EHT, for another example, a next-generation of 802.11be, such as 802.11bn or Wi-Fi 8, 802.11ay, or 802.11aj, and may be further applied to a UWB-based wireless personal area network system, a sensing (sensing) system, and the like. A first communication apparatus sends a PPDU, and a second communication apparatus receives the PPDU. The PPDU corresponds to at least one target user, the PPDU includes a data field corresponding to the target user, and a parameter NSD,short corresponding to the target user is determined based on an RU/MRU used to transmit the data field and an MCS of the data field. This effectively reduces encoding/decoding time and improves encoding/decoding efficiency.

Abstract: This application provides a coordinated communication method, apparatus, and device, and a storage medium. The method may be performed by a first device or a component in the first device. The method includes: The first device sends a first radio frame to a second device, and receives a second radio frame from the second device, and a transmission agreement is set up between the first device and the second device, so that the first device and the second device share a transmission resource under the transmission agreement, to provide a basis for implementing multi-device coordinated transmission.

Abstract: A cooperative communication method receives an announcement frame from a master access point. The announcement frame includes a duration field, a value of the duration field is set to a first duration, an end time of the first duration is not later than an end time of a target trigger frame or is not later than a start time of a target trigger based (TB) physical layer protocol data unit (PPDU), the target trigger frame is a next radio frame of the announcement frame, the target TB PPDU is a response frame for the target trigger frame, the target trigger frame comprises a second trigger frame, and the target TB PPDU comprises a second TB PPDU. The slave access point sends the second trigger frame to a second station associated with the slave access point, and receives the second TB PPDU from the second station.

Abstract: Embodiments of this application provide a probe request and response technology between a station and a plurality of access point multi-link devices (AP MLDs). During implementation of this application, a station may obtain communication parameters of a plurality of APs of one or more AP MLDs by sending one probe request frame, to obtain communication parameters of the AP MLD on a plurality of links, thereby efficiently implementing association between the station and the AP MLD or establishing multi-link transmission between the station and the AP MLD.

Abstract: This application provides a beam alignment training method and apparatus. The method includes: A transmit end sends M pieces of first beam measurement data, where the M pieces of first beam measurement data correspond to M measurement beams; the transmit end receives a combination coefficient set, where the combination coefficient set is determined by a receive end based on the M pieces of first beam measurement data, the combination coefficient set includes M beam weighting coefficients, an mth beam weighting coefficient corresponds to an mth piece of first beam measurement data, the mth beam weighting coefficient represents a weight value of an mth measurement beam in the M measurement beams, 1?m?M, and m and M are positive integers; and the transmit end determines a combined beam based on the combination coefficient set and the M measurement beams.

Abstract: Embodiments of this application provide access point (AP) multi-link device discovery methods and related apparatuses and computer-readable storage media, which can be applied, for example, to a wireless local area network (WLAN) supporting 802.11be. An example method includes: sending, by a station (STA), a probe request frame, wherein the probe request frame carries at least one link identifier of at least one AP for requesting information of the at least one AP, and the STA is affiliated to a STA MLD; and receiving, by the STA from an AP MLD, a probe response frame, wherein the probe response frame carries the information of the at least one AP requested by the STA.

Abstract: An apparatus that is a first multi-link device (MLD) or a component of the first MLD is caused to obtain information about a first relay MLD through a first communication link. The first relay MLD is used to relay information transmitted by the first MLD to a second MLD through a second communication link. The apparatus is also caused to send a first request message to the first relay MLD and the second MLD through the first communication link. The first request message is used to request to establish a second communication link between the first MLD and the first relay MLD and a second communication link between the second MLD and the first relay MLD. The frequency band on which the first communication link operates is lower than a frequency band on which the second communication link operates.

Abstract: A method includes: An access point generates an NDPA frame, where the NDPA frame includes a station information field, and the station information field includes an AID subfield indicating an association identifier AID of a station; the station information field further includes a partial bandwidth information subfield; the partial bandwidth information subfield indicates an RU that is in a bandwidth corresponding to the NDPA frame and for which the station needs to feed back channel state information; and the bandwidth corresponding to the NDPA frame is greater than 160 MHz. The access point transmits the NDPA frame.

Abstract: This application relates to the field of communication technologies, and in particular, to a beamforming training method and an apparatus, to avoid a frame collision in time domain in a beamforming training process, and improve beamforming training efficiency. The method includes: A first communication apparatus (for example, an AP) receives first indication information from a second communication apparatus (for example, a STA), where the first indication information indicates an optimal transmit sector of the first communication apparatus; the first communication apparatus sends second indication information to the second communication apparatus, where the second indication information indicates a first slot group for the first communication apparatus to receive a first frame; and the first communication apparatus receives the first frame from the second communication apparatus in the first slot group in the optimal transmit sector.