Abstract: The present document discloses a frame aggregation method and an electronic device. Herein, the method includes: acquiring state information of a wireless channel; acquiring state information of an operator according to a preset sate parameter; and performing calculation according to the state information of the wireless channel and the state information of the operator to obtain a calculation result, and performing frame aggregation when the calculation result meets a first condition.

Abstract: A receiving device for a multi-input multi-output (MIMO) visible light communication system includes a collimation unit, a metal thin film, a transparent substrate and a receiving unit. The receiving device performs receiving by using optical components, and uses the metal thin film as a main receiving component, which plays a role of filtering and enhanced transmission, and equals to implementing a function of filtering and signal amplification by using electronic components, but overcomes the nonlinear effect of the electronic components, thereby solving the problem of waveform distortion in receiving.

Abstract: Technical solutions are described for step counting, performed by: calibrating (100) a step counting frequency and/or an effective value of step counting pace of a three-axis acceleration sensor according to acquired step counting data of a preset number of steps; and performing (101) step counting according to the calibrated step counting frequency and/or the calibrated effective value of step counting pace of the three-axis acceleration sensor obtained from the calibration. By calibrating the step counting frequency and/or the effective value of step counting pace of the three-axis acceleration sensor, error in the step counting caused by different walking paces of a user and different step counting frequencies of the three-axis acceleration sensors are avoided, improving accuracy of step counting. Also, the calibration improves the accuracy by handling ineffective step counting in the step counting data.

Abstract: Disclosed are a method for establishing a millimeter wave wireless communication link and a terminal device, wherein the method includes: a terminal source sending an omnibearing request to send (ORTS) to a terminal sink, location information of the terminal source relative to a mediation device obtained by the terminal source performing signaling interaction with the mediation device being carried in the ORTS; after sending the ORTS, if a directional clear to send sent by the terminal sink according the location information is received, the terminal source determining a direction of the terminal sink according to an angle of arrival of the directional clear to send, establishing a line of sight link with the terminal sink; if an omnibearing clear to send sent by the terminal sink is only received, the terminal source establishing a relay link with the terminal sink by using the mediation device as a relay node.

Abstract: A visible light communication MIMO system and a method for realizing data transceiving therefor are disclosed. The method includes: converting data of a sending end into two-dimensional code information containing locating information through light intensity modulation and compilation to send; a receiving end scanning received two-dimensional code information, and rectifying the received two-dimensional code information according to the locating information; and demodulating the rectified two-dimensional code information to obtain data.

Abstract: Provided are a light dimming method for alleviating inter-frame flicker and dimming device. The light dimming method includes that: an average luminance value Avgdata when a sender sends physical frames is calculated; whether inter-frame flicker is generated when the sender sends data or not is judged according to a ratio of Avgdata to an average luminance value Avglight in an illumination state; and if the inter-frame flicker is generated when the sender sends the data, the sender inserts a dimming frame in an idle pattern, wherein the dimming frame is used for compensating for a luminance difference between Avgdata and Avglight. A value of a duty cycle of the physical frame sent to regulate the luminance of the light source in the idle pattern of the sender is within a certain range, and is not required to be accurately equal to a duty cycle of a line coding method adopted for a physical layer.

Abstract: A relay supported method, system, and a RN for transmitting visible light information are provided. The method includes that UE sends information to a detected RN, and the RN processes and forwards the information from the UE to a VS. The RN is configured to process and forward the information from the UE to the VS in an uplink direction. According to the present disclosure, with adoption of visible light communication relay, visible light communication coverage may be broadened, and a visible light communication rate may be increased.

Abstract: A method and a device for processing wireless body area network data, the method is applied to a processing device for wireless body area network data and comprises: receiving or generating sampled value reference ranges; receiving sampled data from an acquisition device of wireless body area network data, and judging a sampled value reference range to which the sampled data belong according to a sampled value of the sampled data; and processing the sampled data according to the sampled value reference range to which the sampled data belong. Through the embodiments of the present document, degrees of importance of the sampled data can be automatically differentiated and the data processing efficiency is improved under the situation of limited resources.

Abstract: Disclosed are a dimming method, a dimming device and a computer storage medium. The method comprises: segmenting, on a Media Access Control (MAC) layer, a MAC Service Data Unit (MSDU) into multiple sub-MSDUs of the same length; encapsulating the sub-MSDUs after the segmentation into separate MAC Protocol Data Units (MPDUs), and separately generating a Compensation Frame (CF) for each MPDU according to a target brightness value of a light source; and aggregating the MPDUs and the CFs into a Physical Layer Service Data Unit (PSDU) of a Physical Layer Protocol Data Unit (PPDU) and transmitting the PPDU.

Abstract: A switching method and device for a visible-light communication device and a terminal device at an access point, comprising: configuring different identification codes for visible-light communication devices; when a terminal device satisfies a switching condition, its original access point selecting a visible-light communication device whose signal quality is higher than that of the original access point as a target access point according to a peripheral access list, sending its capability to the target access point, and initiating a switching request; the original access point selecting an operating mode according to an indication of the target access point to notify the terminal device, and forwarding response fed back by the terminal device to the target access point; and when receiving response for the switching request fed back by the target access point and downlink resource allocation information, the original access point sending a switching command to the terminal device to switch.

Abstract: The present document discloses a frame aggregation method and an electronic device. Herein, the method includes: acquiring state information of a wireless channel; acquiring state information of an operator according to a preset sate parameter; and performing calculation according to the state information of the wireless channel and the state information of the operator to obtain a calculation result, and performing frame aggregation when the calculation result meets a first condition.

Abstract: A method and apparatus for implementing dimming are disclosed. The method includes: at an MAC layer, dividing an MSDU into two or more sub-MSDUs with a same length; encapsulating each sub-MSDU obtained after dividing into a separate MPDU, and generating a compensation frame for each MPDU; and aggregating the MPDUs and the compensation frames with the same addresses into a PSDU part of a PPDU and transmitting a physical frame.

Abstract: Disclosed are a dimming method, a dimming device and a computer storage medium. The method comprises: segmenting, on a Media Access Control (MAC) layer, a MAC Service Data Unit (MSDU) into multiple sub-MSDUs of the same length; encapsulating the sub-MSDUs after the segmentation into separate MAC Protocol Data Units (MPDUs), and separately generating a Compensation Frame (CF) for each MPDU according to a target brightness value of a light source; and aggregating the MPDUs and the CFs into a Physical Layer Service Data Unit (PSDU) of a Physical Layer Protocol Data Unit (PPDU) and transmitting the PPDU.

Abstract: Provided are a light dimming method for alleviating inter-frame flicker and dimming device. The light dimming method includes that: an average luminance value Avgdata when a sender sends physical frames is calculated; whether inter-frame flicker is generated when the sender sends data or not is judged according to a ratio of Avgdata to an average luminance value Avglight in an illumination state; and if the inter-frame flicker is generated when the sender sends the data, the sender inserts a dimming frame in an idle pattern, wherein the dimming frame is used for compensating for a luminance difference between Avgdata and Avglight. A value of a duty cycle of the physical frame sent to regulate the luminance of the light source in the idle pattern of the sender is within a certain range, and is not required to be accurately equal to a duty cycle of a line coding method adopted for a physical layer.

Abstract: A receiving device for a multi-input multi-output (MIMO) visible light communication system includes a collimation unit, a metal thin film, a transparent substrate and a receiving unit. The receiving device performs receiving by using optical components, and uses the metal thin film as a main receiving component, which plays a role of filtering and enhanced transmission, and equals to implementing a function of filtering and signal amplification by using electronic components, but overcomes the nonlinear effect of the electronic components, thereby solving the problem of waveform distortion in receiving.

Abstract: The disclosure discloses a method, device and system for managing a communication link, and a computer storage medium. The method includes that: according to the path quality of different transmitting directions of a received signal and the path quality corresponding to a receiving direction of the signal, a sink device determines transmitting and receiving directions of a communication link (101); and the sink device establishes the communication link according to the determined receiving direction (102).

Abstract: A method and a device for processing wireless body area network data, the method is applied to a processing device for wireless body area network data and comprises; receiving or generating sampled value reference ranges; receiving sampled data from an acquisition device of wireless body area network data, and judging a sampled value reference range to which the sampled data belong according to a sampled value of the sampled data; and processing the sampled data according to the sampled value reference range to which the sampled data belong. Through the embodiments of the present document, degrees of importance of the sampled data can be automatically differentiated and the data processing efficiency is improved under the situation of limited resources.

Abstract: Provided are a signal transmission method and apparatus. In the signal transmission method, a terminal device obtains a signal to be sent; and the terminal device sends the signal through a visible light medium, wherein after being demodulated, the signal sent through the visible light medium is carried on a power line for transmission. By virtue of the solution, the problem in related technologies regarding the integration of the visible light communication as a wireless access manner with the power line communication technology is solved, the construction of the communication network can be more convenient and faster, and the advantages of the visible light communication and the power line communication technology are fully utilized.

Abstract: Disclosed is a millimeter-wave communication spatial multiplexing transmission method, and the method includes: a millimeter-wave communication device initiating high-speed data communication with a target device, sending a beamforming request to the target device via a low frequency band communication module, if the millimeter-wave communication device has received an acknowledgement response sent by the target device via the low-frequency band communication module and learns that a non-target device is performing the high-speed data communication in a same frequency band with the high-speed data communication initiated by the millimeter-wave communication device, the millimeter-wave communication device configuring transmitting power which is less than default power to perform beam scanning.

Abstract: A visible light communication MIMO system and a method for realizing data transceiving therefor are disclosed. The method includes: converting data of a sending end into two-dimensional code information containing locating information through light intensity modulation and compilation to send; a receiving end scanning received two-dimensional code information, and rectifying the received two-dimensional code information according to the locating information; and demodulating the rectified two-dimensional code information to obtain data.