Patent ID: 9716550
Date: 2017-07-25
CPC Classifications: H04B,H04L

Claim:
1. A dimming method, comprising: dividing a Media Access Control (MAC) Service Data Unit (MSDU) into multiple sub-MSDUs with an equal length in a MAC layer; encapsulating the divided sub-MSDUs into independent MAC Protocol Data Units (MPDUs) respectively, and generating a Compensatory Frame (CF) for each MPDU according to a target luminance value of a light source; and aggregating each MPDU and a CF corresponding to the each MPDU into a Physical-layer Service Data Unit (PSDU) in a Physical-layer Protocol Data Unit (PPDU), and transmitting the PPDU, wherein the dimming method further comprises: before dividing the MSDU into the multiple sub-MSDUs with the equal length in the MAC layer, determining whether a length of the MSDU is less than or equal to a difference in value between a maximum data length and a sum of a physical layer cost length and a MAC layer cost length, wherein the maximum data length is a product of a period T and a data rate of a link, and the period T is a reciprocal of a Critical Flicker Frequency (CFF).