Abstract: A sector sweep method includes a first communication apparatus transmitting a first frame on a first frequency domain resource or a second frequency domain resource, where the first frame includes information about M training sequences, and the M training sequences are used for a sector sweep on the second frequency domain resource. The first communication apparatus performs the sector sweep with the second communication apparatus on the second frequency domain resource based on the information about the M training sequences, where a frequency corresponding to the first frequency domain resource is less than a frequency corresponding to the second frequency domain resource. The first communication apparatus performs the sector sweep with the second communication apparatus by using a new sector sweep frame (namely, a training sequence).

Abstract: Example multiple spatial stream transmission methods and apparatus are described. One example method includes A transmitter device obtaining, by a transmitter device, a modulation and coding scheme (MCS) corresponding to each of multiple spatial streams. The transmitter device sends data of the multiple spatial streams based on the MCS corresponding to each spatial stream. A receiver device receives the data of the multiple spatial streams, and decodes and demodulates the data of each spatial stream based on the MCS corresponding to each spatial stream.

Abstract: The present disclosure provides an approach where a first communication apparatus transmits a first frame that includes first indication information which indicates a first time domain resource allocated to a second communication apparatus from a time domain resource set, and the time domain resource set includes a time domain resource used to perform beamforming training in an association process. The first communication apparatus communicates with the second communication apparatus on the first time domain resource, and the first communication apparatus may indicate, to the second communication apparatus, a time domain resource allocated to the second communication apparatus from the time domain resource set.

Abstract: A first communication apparatus transmits a plurality of first frames on a first frequency domain resource, where the plurality of first frames is used for first beamforming training. The first communication apparatus receives a second frame from a second communication apparatus on a second frequency domain resource, where the second frame includes a result of the first beamforming training, and a frequency corresponding to the first frequency domain resource is higher than a frequency corresponding to the second frequency domain resource. The first communication apparatus and the second communication apparatus may transmit, in a high frequency band, a sweep frame for beamforming training, and transmit, in a low frequency band, a feedback frame for the beamforming training, to complete the beamforming training through mutual cooperation between the low frequency band and the high frequency band.

Abstract: Embodiments of this application disclose a data transmission method and a communication device, to improve channel bandwidth utilization and data transmission efficiency. The data transmission method provided in embodiments of this application includes: performing clear channel assessment on an existing wireless fidelity Wi-Fi channel to obtain a channel assessment result; determining a target channel based on the channel assessment result, where a bandwidth of the target channel is greater than 80 megahertz MHz, and the bandwidth of the target channel is not a bandwidth of the existing Wi-Fi channel; and sending data to a receiving end through the target channel, or receiving data from a transmitting end through the target channel.

Abstract: Example communication methods and apparatus are described. One example method includes that a sending device sends M first identifiers to M receiving devices among N receiving devices. The sending device transmits, through a data frame, data to the M receiving devices corresponding to the M first identifiers. The sending device is communicatively connected to the N receiving devices, and the N receiving devices are not communicatively connected to each other. The M first identifiers correspond to the M receiving devices in a one-to-one relationship, the M first identifiers identify the M receiving devices, and the N receiving devices include the M receiving devices. N is an integer greater than or equal to 1, and M is a positive integer less than or equal to N.

Abstract: Responsive to a request to access heterogeneous repositories, a REST server queries a resource registry to find resources that match mapping information contained in the request. The resource registry returns resource registry tables containing the matching resources. The resource registry tables implement a unified data structure of a resource registry model and are generated at runtime by the resource registry mapping REST service configuration parameters to the fields of the unified data structure. The REST service configuration parameters are added to an extension SDK for REST extension developers to enhance REST service configuration for extension applications. The REST service configuration parameters are configured at implementation time and loaded/scanned into the REST server at runtime. The REST server iteratively evaluates the resource registry tables until all the matching resources have been evaluated.

Abstract: A sensing method and apparatus, to combine a sub-7 GHz frequency band and an mmWave frequency band for Wi-Fi sensing, and improve performance of sensing a Wi-Fi signal. The method includes: receiving a plurality of first communication data frames in the first frequency band and a plurality of second communication data frames in the second frequency band, where a frequency of the first frequency band is higher than a frequency of the second frequency band; and obtaining a plurality of pairs of communication data frames, where each of the plurality of pairs of communication data frames includes a first communication data frame in the first plurality of communication data frames and a second communication data frame in the second plurality of communication data frames, and a time difference between a first timestamp of the first communication data frame and a second timestamp of the second communication data frame falls within a preset threshold range.

Abstract: A data transmission method comprises transmitting a plurality of medium access control protocol data units (MPDUs) in a physical layer protocol data unit (PPDU) through N sub-channels in a tile-based allocation manner, where each tile is independently encoded and decoded such that MPDUs in a frequency band with interference and in a frequency band without interference are independent of each other.

Abstract: This application provides a service transmission method and a communication apparatus. The method includes: A first access point sends a radio frame to a second access point, where the radio frame indicates a service synchronously transmitted by the first access point and the second access point; and the first access point initiates the service. According to the foregoing technical solution, in this application, service synchronization between the first access point and the second access point can be implemented. Correspondingly, the first access point and the second access point may orderly initiate the service, so that network congestion and stalling can be alleviated.

Abstract: This application provides a channel access method and an apparatus, and relates to the field of communication technologies, to resolve a problem that it is difficult for a long range communication device to access a channel, and communication efficiency is low. The method includes: A first device detects a channel status in first duration. If a channel is in an idle state, M is subtracted from a value of a first counter, where M is a positive integer greater than 1. If the value of the first counter is greater than 0, the first device detects the channel status in next first duration; or if the value of the first counter is less than or equal to 0, the first device transmits data through the channel.

Abstract: Disclosed are a communication method based on a PPDU and an apparatus. This application is applied to a wireless local area network system that supports 802.11 series protocols such as a next-generation Wi-Fi protocol of IEEE 802.11ax, for example, 802.11be, Wi-Fi 7, or EHT, and a next-generation Wi-Fi protocol of 802.11be or Wi-Fi 8, and may be further applied to a UWB-based wireless personal area network system, a sensing (sensing) system, and the like. The method includes: A transmit end generates the PPDU, and sends the PPDU. Correspondingly, a receive end receives the PPDU, and processes the PPDU. The PPDU may include an L-STF, an L-LTF, an L-SIG field, and a first STF.

Abstract: This application relates to the field of communication technologies, and provides an information transmission method and an apparatus, to improve sensing performance. This application is used in a wireless local area network system supporting IEEE 802.11ax next-generation Wi-Fi protocols, for example, 802.11be, Wi-Fi 7, EHT, 802.11ad, 802.11ay, and 802.11bf, a next-generation 802.11be protocol, for example, Wi-Fi 8, or a next-generation 802.11 series protocol. In the method, a first device receives, from a second device, a PPDU for sensing measurement. The first device sends, to the second device, information indicating AGC.

Abstract: The present disclosure relates to utilizing the N6-methyllysine for reducing fat percentage in an organ or tissue or for treating obesity, obesity-related diseases or cancers. More specifically, the present invention relates to the method using N?-Methyl-L-lysine or N?-Methyl-L-lysine producing bacteria or N?-Methyl-L-lysine/l-lysine mixture or N?-Methyl-L-lysine/probiotics mixture to treat obesity, obesity-related diseases or cancers.

Abstract: Responsive to a request to access heterogeneous repositories, a REST server queries a resource registry to find resources that match mapping information contained in the request. The resource registry returns resource registry tables containing the matching resources. The resource registry tables implement a unified data structure of a resource registry model and are generated at runtime by the resource registry mapping REST service configuration parameters to the fields of the unified data structure. The REST service configuration parameters are added to an extension SDK for REST extension developers to enhance REST service configuration for extension applications. The REST service configuration parameters are configured at implementation time and loaded/scanned into the REST server at runtime. The REST server iteratively evaluates the resource registry tables until all the matching resources have been evaluated.

Abstract: An antenna channel sounding method, an apparatus, and a storage medium are provided. A first communication apparatus sends a first frame and a first physical layer protocol data unit (PPDU) to a second communication apparatus. The first frame includes first indication information for indicating the second communication apparatus to perform transmit antenna channel sounding. The first PPDU is a null data packet (NDP). The first PPDU includes a first identifier field indicating an identifier of a first transmit antenna set. In this way, the second communication apparatus can determine a correspondence between a transmit antenna channel sounding result corresponding to a received PPDU and an identifier of a transmit antenna set, and can determine an identifier of a transmit antenna set selected based on one or more transmit antenna channel sounding results. This can perform antenna selection based on the antenna channel sounding results in the large-scale antenna scenario.

Abstract: This application provides a communication method for a wireless fidelity Wi-Fi system and an apparatus, and relates to the field of communication technologies, to improve an anti-interference capability of an IoT device, and improve a coverage capability and a wall penetration capability. The communication method for a wireless fidelity Wi-Fi system includes: generating a Wi-Fi frame including a preamble, where a synchronization sequence of the preamble includes at least one extension code, and the extension code includes N symbols generated based on a Barker code, where N=?*M, M is a chip length of the Barker code, and ? is a positive integer; and transmitting the Wi-Fi frame.

Abstract: This application provides a method and an apparatus for determining a frequency offset. The method includes: an access point (AP) receives a first frame sent by a station (STA), where the first frame is trigger-based, the first frame includes a plurality of channel estimation training sequence high-efficiency long training field (HELTF) symbols, the plurality of HELTF symbols include a first HELTF symbol and a second HELTF symbol, and training data on the first HELTF symbol and training data on the second HELTF symbol are the same or opposite. The AP determines a frequency offset value between the AP and the STA based on the first HELTF symbol and the second HELTF symbol.

Abstract: The present disclosure relates to utilizing the N6-methyllysine for reducing fat percentage in an organ or tissue or for treating obesity, obesity-related diseases or cancers. More specifically, the present invention relates to the method using N?-Methyl-L-lysine or N?-Methyl-L-lysine producing bacteria or N?-Methyl-L-lysine/l-lysine mixture or N?-Methyl-L-lysine/probiotics mixture to treat obesity, obesity-related diseases or cancers.

Abstract: Responsive to a request to access heterogeneous repositories, a REST server queries a resource registry to find resources that match mapping information contained in the request. The resource registry returns resource registry tables containing the matching resources. The resource registry tables implement a unified data structure of a resource registry model and are generated at runtime by the resource registry mapping REST service configuration parameters to the fields of the unified data structure. The REST service configuration parameters are added to an extension SDK for REST extension developers to enhance REST service configuration for extension applications. The REST service configuration parameters are configured at implementation time and loaded/scanned into the REST server at runtime. The REST server iteratively evaluates the resource registry tables until all the matching resources have been evaluated.