153 results about "Beacon frame" patented technology

A method performed by a wireless device operating as an access point in a wireless network to allocate a restricted access window (RAW) for wake-up receiver stations. The method includes generating a beacon frame, wherein the beacon frame includes information regarding a RAW that is allocated for one or more wake-up receiver stations, wherein each of the one or more wake-up receiver stations includes a main radio and a wake-up receiver and wirelessly transmitting the beacon frame.

The invention discloses an ad hoc network system and method based on TDMA, and relates to the technical field of wireless communication. The system comprises a master node and a plurality of slave nodes which are respectively provided with a high-precision timing counter. A system defines a superframe structure containing time slots, a master node broadcasts access information, and slave nodes monitor access and allocate the time slots. A node broadcasts a beacon frame with a local timestamp in a sending time slot of the node, and calibrates a clock of the node when receiving a beacon of the node, so that distributed time synchronization is realized. When a node sends data, the sending time slot is ended in advance under the condition of distance so as to avoid crosstalk between the time slots. The system also defines a frequency sweeping time slot, and self-adaptive channel frequency hopping is realized through centralized decision of the main node so as to resist interference; and a dynamic time slot allocation mechanism is adopted, standby time slots are applied and released as required, and the resource utilization rate is improved. According to the invention, the problems of low synchronization precision, poor interference resistance, resource allocation rigidity, time delay influence and the like of the traditional TDMA ad hoc network are solved, and high-reliability and high-efficiency multi-hop ad hoc network communication is realized.

A first access point (AP) transmits to a second AP a first frame requesting first restricted target wake time (R-TWT) information of the second AP based on not receiving a beacon frame of the second AP within a first period from a target beacon transmission time (TBTT) of the second AP. The first AP receives from the second AP a second frame comprising the first R-TWT information of the second AP in response to the first frame.

Disclosed is a method for transmitting a frame of a wireless communication system. A non-AP STA receives a beacon frame comprising a request type field from an AP and can receive a downlink frame or transmit an uplink frame in accordance with a specific field value included in the beacon frame. Here, the request type field comprises a specific field for indicating a target wake time (TWT) for a low latency operation, and, if the value of the specific field is set as a first specific value, a broadcast TWT service period (SP) is a TWT SP for the low latency operation.

The embodiment of the invention provides a wireless CSI (Channel State Information) sensing and communication method, an AP (Access Point) and a device, relates to the field of communication, is applied to the AP, is suitable for universal network scenes such as FTTR (Fiber To The Rate) and the like, can be deployed in the AP and is applied to target sensing, equipment control, security and protection, health monitoring and the like in a home scene, but the application range of the wireless CSI sensing and communication method is not limited to the FTTR scene. The method comprises the steps that beacon frame data are transmitted through a first channel, and an AP receiving the beacon frame data can calculate CSI data based on the beacon frame data to perform wireless CSI sensing; and transmitting a communication signal containing the communication data through the second channel, wherein the first channel and the second channel are located at different frequency bands. By applying the scheme provided by the embodiment of the invention, the mutual interference between the sensing signal and the communication signal can be reduced under the condition of realizing wireless CSI sensing.

Methods and apparatuses are described herein how Enhanced Multi-Link Multi-Radio (EMLMR) mode is enabled or disabled in a set of EMLMR links. In one example a beacon frame is received by a station (STA) from an access point (AP) that includes an extremely high throughput (EHT) Operation element including a Disabled Channel Bitmap Present subfield and an EHT Operation Information Present subfield. When the Disabled Channel Bitmap Present subfield is equal to 1, the EHT Operation Information Present subfield is also equal to 1, the STA receives a Disabled Channel Bitmap field indicated in an EHT Operation Information field to determine the allowed subchannels for enhanced multi-link multi-ratio (EMLMR) link(s). EMLMR mode may be enabled / disabled by way of an EML Operating Mode Notification frames and bit values in an EMLMR Bitmap subfield. Additional embodiments are disclosed.

The invention discloses a distributed data transmission method for a low-voltage power station area. The method comprises the following steps: planning a channel and a time slot; clock synchronization; network access and configuration of distributed nodes; active acquisition and reporting; dual-mode link redundancy and conflict are avoided; and data aggregation and network maintenance. According to the invention, the technical problems of high data transmission delay, frequent channel conflicts and low single-mode communication reliability of the traditional power station area are solved, the master node realizes millisecond-level timing with the fusion terminal through an NTP / PTP protocol on the basis of the clock management module of the electric red operating system, a synchronous clock is broadcasted to the whole network site through a beacon frame, and the reliability of the single-mode communication is improved. The child nodes calibrate a local clock through a hardware timer, the time deviation of the whole network is ensured to be less than or equal to 10ms, a foundation is laid for distributed time slot distribution, and high-precision clock synchronization is realized.

A process for configuring a Wi-Fi channel includes selecting between puncturing the channel and reducing the channel's bandwidth to reduce channel interference based on continuously monitored channel conditions. The selecting includes performing successive operations of puncturing the channel and reducing channel bandwidth until channel interference is sufficiently reduced. The final channel configuration is announced, for example, by transmitting beacon frames with the final channel configuration. The process is repeated on a regular basis to adjust the channel configuration as channel conditions change. The process is also performed to provide a channel configuration to reduce channel interference that is present when responding to an association request.

A method includes that a first frame from a second electronic device may carry sending time information of the sent first frame, and the first frame is a device discovery beacon frame used for device discovery, a synchronization beacon frame used for synchronization, or a service discovery frame used for service discovery in Wi-Fi aware. After receiving the first frame, a first electronic device may determine a first transmission delay between the first electronic device and the second electronic device based on the sending time information of the first frame and a first time point at which the first frame is received.

The embodiment of the invention provides an ultra-wideband positioning method for offshore dispatching, a storage medium and a program product. The method comprises the following steps: controlling a beacon base station to periodically broadcast beacon frame signals to a plurality of ultra-wideband base stations so as to synchronize the time sequence of the plurality of ultra-wideband base stations; controlling the plurality of ultra-wideband base stations to receive radio signals transmitted by ultra-wideband tag equipment on the to-be-positioned target, so that the plurality of ultra-wideband base stations obtain first ranging data based on a first preset ranging algorithm and the radio signals; acquiring first ranging data from the plurality of ultra-wideband base stations; preprocessing the first ranging data to obtain second ranging data; acquiring offset vector data of the target to be positioned, wherein the offset vector data are equal at any moment in the same time slot; and determining position information of the to-be-positioned target by adopting a preset positioning system distance model based on the second distance measurement data, the coordinate information and the offset vector data. The method is used for realizing accurate positioning of the moving to-be-positioned target.

The invention provides a flow management method and device, electronic equipment and a storage medium, and the method comprises the steps: determining other vehicle-mounted equipment in the same group with the vehicle-mounted equipment in a preset connection range based on a pre-obtained certificate list when determining that the vehicle-mounted equipment is in a first communication working mode based on the vehicle remaining flow detected in real time; acquiring a beacon frame broadcasted by other vehicle-mounted equipment in the same group with the vehicle-mounted equipment and a received signal strength indication value corresponding to the beacon frame; and based on each beacon frame and the corresponding received signal strength indication value, determining other target vehicle-mounted equipment for providing the traffic for the vehicle-mounted equipment, so that the other target vehicle-mounted equipment provides the traffic for the vehicle-mounted equipment. When the vehicle-mounted equipment is determined to be in the first communication working mode, the target other vehicle-mounted equipment is selected from other vehicle-mounted equipment in the same group with the vehicle-mounted equipment according to the beacon frame and the corresponding received signal strength indication value, so that the flow utilization rate of each vehicle is improved, and the problem of resource waste is avoided.

This application provides an adaptive time synchronization compensation method, a terminal device, a gateway device, and a system. The adaptive time synchronization compensation method includes: receiving a beacon frame from a gateway; parsing a timestamp, an actual beacon period value, and an over-the-air transmission time value carried in the beacon frame, wherein the timestamp represents the absolute time at which the gateway begins sending the beacon frame, and the actual beacon period value is the actual interval between the start times of two adjacent beacon frame transmissions, as measured by the gateway based on its hardware clock; recording the local reception completion time of the beacon frame on the terminal device side; calculating a first time deviation between the local clock of the terminal device and the gateway clock based on the timestamp, the over-the-air transmission time value, and the local reception completion time; correcting the local clock of the terminal device according to the first time deviation; and calculating and determining subsequent periodic reception time slots of the terminal device based on the corrected local clock, the actual beacon period value, and predefined reception time slot parameters.

The invention relates to a low power wireless network system. A low power wireless network system, a wireless network node, a wireless network hub, and a method for transmitting data frames on a low power wireless network system are provided. An example wireless network system includes an access point and a plurality of wireless nodes, the wireless nodes including a destination wireless node and a wireless hub. The access point is configured to transmit data frames to a plurality of wireless nodes according to a wireless network protocol. The destination wireless node includes a primary connection radio module configured to generate a communication signal according to a wireless network protocol and a wake-up radio receiver configured to receive a low-power wake-up signal. The wireless hub is configured to transmit a low power wake-up signal to the destination wireless node if the beacon frame from the access point indicates that the buffered data frame is intended for the destination wireless node.

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.

A communication device which functions as an access point for executing wireless communication conforming to the IEEE 802.11 standard series transmits a beacon frame including capability information of the communication device related to control frame protection support.

The invention discloses an unmanned aerial vehicle identity identification method and system based on WIFI broadcast. The method comprises the following steps: arranging a beacon module on the unmanned aerial vehicle and enabling the beacon module to work in a WIFI frequency band; the control beacon module periodically broadcasts an SSID frame containing an unmanned aerial vehicle serial number and / or a personal identification code, position data, a CRC check code and a timestamp; and the ground equipment obtains the identity information of the unmanned aerial vehicle by scanning and analyzing the standard WIFI beacon frame. According to the invention, unmanned aerial vehicle identity broadcasting is realized through a general WIFI protocol, and the technical defects of high deployment cost and limited coverage range caused by dependence on special receiving equipment and signal blind areas and tampering hidden dangers caused by dependence on active network reporting in the prior art are overcome. A dynamic MAC address rotation and data encryption mechanism is adopted to ensure communication security, and low-power-consumption operation is realized through an optimized frame structure and an intermittent working mode, so that a common smart phone can complete identity recognition without a special APP, and the technical effects of low cost, wide coverage, high security and convenient supervision are achieved.

This application provides a multicast frame propagation method, electronic device, and storage medium. The method includes: at least one receiving end operating in a non-master channel, performing multicast frame processing operations according to its operating state. This application aims to solve the problem of correct multicast frame transmission during master-slave channel switching in fiber-to-the-room scenarios, preventing beacon frames from failing to be sent or received in a timely manner, improving the stability of multicast frame transmission, and enhancing communication quality.

The invention discloses a wireless sensor network networking method and system supporting short-period real-time communication, the system comprises a gateway, an access point and a sensor network node, the gateway and the access point are connected through the Ethernet, and the access point and the sensor network node are in narrowband wireless communication. According to the system, a network is established by a gateway, a network ID is used as a unique identifier of the network, and network addressing is carried out through a node short address. And the gateway controls the wireless communication resources of the whole network and the state of the nodes by setting the channel and the beacon frame of each access point. The nodes control energy consumption while completing a collection task through state switching.

This provides enhanced link-specific procedures adapted to Enhanced Multilink (EML) mode, taking into account the use of Enhanced Multilink (EML) mode. [Solution] A non-access point (non-AP) multilink device (MLD) operates in EML mode applied to a set of EML links, and a first affiliated station (STA) receives a first beacon frame via a first link of the EML links, including a target beacon transmission time (TBTT) associated with a second beacon frame, and configures the first affiliated station to be in a receiving state at TBTT in order to receive the second beacon frame.

This application discloses a beam determination method and related apparatus. The method includes: an Access Point (AP) transmitting beacon frames using beam polling, and carrying a beam identifier of the narrow transmission beam used to transmit the beacon frame in the beacon frame; a STA (Station) selecting the optimal transmission beam for the AP based on the received signal quality corresponding to different narrow transmission beams, and notifying the AP of the optimal transmission beam through an authentication frame, thereby improving the signal quality in communication between the AP and the STA, achieving long-distance coverage and uplink reception interference suppression. The AP transmits at least one beacon frame and at least M trigger frames, each beacon frame including the time information of the trigger frame; the STA determines the target trigger frame from the M trigger frames and sends an authentication frame to the AP within the target access time window corresponding to the target trigger frame, thereby adapting different STAs to different access time windows, reducing the number of access failures and access delays for long-distance STAs.

A communication method and apparatus, which relate to the technical field of communications, and can prevent, as much as possible, a station from frequently scanning a channel, thereby improving the reliability of communications. The method is applied to a communication network, which comprises M access points, wherein the M access points are associated with the same basic service set identifier. The method specifically comprises: determining N access points from M access points, and instructing the N access points to send beacon frames, i.e., the N access points sending beacon frames, and (M-N) access points among the M access points other than the N access points not sending beacon frames, wherein N is an integer greater than or equal to 1 and less than M.

This disclosure describes systems, methods, and devices related to enhanced network configuration. A device may operate as a transmitted basic service set identifier (TxBSSID) within a multiple BSSID set, the multiple BSSID set further comprising at least one non-transmitted BSSID (NonTxBSSID). The device may generate a beacon frame comprising a multiple BSSID element that includes a profile for the at least one NonTxBSSID. The device may cause transmit the beacon frame, wherein the profile for the at least one NonTxBSSID is configured to indicate that the at least one NonTxBSSID does not support a first wireless communication protocol by including an identifier for a capabilities element of a first wireless communication protocol in a non-inheritance list within the profile.

A method and a device for signaling an ERSP in a wireless LAN system are presented. Specifically, a first reception STA receives a beacon frame from a transmission STA. The first reception STA receives a first frame from the transmission STA during an RSP. The beacon frame includes allocation information about the RSP. The first frame includes signaling information about the ERSP having an extended RSP. The first frame is transmitted when the ERSP starts. The signaling information about the ERSP includes information about whether an ERSP is present, information about the time when the ERSP ends, and information about the duration of the ERSP.

A first access point (AP) transmits to a second AP a first frame requesting first restricted target wake time (R-TWT) information of the second AP based on not receiving a beacon frame of the second AP within a first period from a target beacon transmission time (TBTT) of the second AP. The first AP receives from the second AP a second frame comprising the first R-TWT information of the second AP in response to the first frame.

A re-association indication method includes: sending a beacon frame of a multi-transport connection, the beacon frame with a plurality of transmission connections includes a re-association information element. The re-association information element includes indication information used for indicating re-association request frame transmission. The indication information for indicating transmission of the re-association request frame comprises a service identifier and connection identifier of at least one transmission connection for receiving the re-association request frame.

Methods and apparatuses are disclosed for stations (STAs) in a Wireless Local Area Network (WLAN) to use a dedicated channel for various operations, including operations related to, for example, low latency traffic, wakeup radio (WUR), channel switching, power mode, and coexistence interference. The STA uses the dedicated channel in accordance with a configuration of the dedicated channel determined, for example, by receiving configuration information in a beacon frame from an access point (AP). The dedicated channel may include one or more resource units (RUs) and be included in physical protocol data units (PPDUs) received and / or transmitted by the STA. An STA may include an AP. Multiple embodiments of methods and apparatuses are disclosed.

This provides a communication method using millimeter waves. [Solution] The communication method is performed by a communication system that stores a zone table and a polling table. The zone table includes a plurality of zone data sets, each corresponding to a plurality of communication zones. For each communication zone, the communication method sets a transmission configuration related to the communication zone based on the zone data set corresponding to the communication zone, the transmission configuration includes a transmission angle and a transmission gain, and based on the zone table, sends a plurality of delayed beacon frames to each communication zone according to the plurality of transmission configurations related to the communication zone, each of which indicates a predetermined delay time according to the polling table, enters PCF mode for one of the polled communication zones, and performs data transmission with an accessible terminal device in that communication zone.

A method for wireless communication is provided, relating to field of wireless communication and including: determining, by an access point device, a first beacon frame and a first modulation mode; and transmitting, by the access point device, the first beacon frame to a station device according to the first modulation mode; where the first beacon frame is a target beacon frame, and the first modulation mode is an original modulation mode; or, the first beacon frame is an original beacon frame, and the first modulation mode is a target modulation mode; or, the first beacon frame is the target beacon frame, and the first modulation mode is the target modulation mode; a length of the target beacon frame is shorter than a length of the original beacon frame, and a transmission rate corresponding to the target modulation mode is greater than a transmission rate corresponding to the original modulation mode.

Communication method, Method for putting an access point into standby mode, access point, beacon frame and corresponding computer programs. The invention relates to a communication method implemented by an access point of a telecommunications network in a standby state, the communication method comprising: waking up an analog part of a radio signal processing chain intended to be transmitted by the access point; broadcasting, by the analog part of the processing chain, at least one beacon frame including at least one parameter indicating that the access point is in a standby state; putting the analog part of the processing chain into standby mode. Figure for the abstract: Fig. 1.

The present disclosure provides enhanced methods, components, devices, and systems for Request to Transmit (RTS) and Clear to Transmit (CTS) exchanges. A first wireless device may receive a beacon frame indicating a first frame in which the first wireless device monitors a first channel, the first frame scheduling communications via one or more channels. A first wireless device may receive a first frame from a second wireless device, the first frame indicating a channel bandwidth and a puncturing mode of a plurality of available puncturing modes for the channel bandwidth. The puncturing pattern may be associated with a first subset of a set of a plurality of channels of a channel bandwidth. The first wireless device may transmit a second frame to the second wireless device indicating that the second subset of channels are available, and may receive one or more data packets via the second subset of channels.