Title:
METHOD OF DIMMING FOR VISIBLE LIGHT COMMUNICATIONS
Document Type and Number:
WIPO Patent Application WO/2018/041252
Kind Code:
A1
Abstract:
A method implemented by a visible light communication (VLC) device comprises determining, by a processor of the VLC device, n time slots for a signal block based on a dimming value, the signal block specifying a predetermined duration of time and the signal block being divided equally into n time slots, with the dimming value specifying a light intensity of light to be emitted by the light source, determining, by the processor, w pulses to be transmitted during one or more of the n time slots of the signal block, based on the dimming value and according to a pulse pattern indicating a position of the w pulses transmitted during the one or more of the n time slots, and determining, by the processor, a codeword based on n and w, the codeword corresponding to the pulse pattern.
Inventors:
WEI DONG (US)
LOU SHUN (CN)
GONG CHEN (CN)
WU NAN (CN)
XU ZHENGYUAN (CN)
LOU SHUN (CN)
GONG CHEN (CN)
WU NAN (CN)
XU ZHENGYUAN (CN)
Application Number:
PCT/CN2017/100283
Publication Date:
March 08, 2018
Filing Date:
September 01, 2017
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H04B10/116
Foreign References:
| CN104158632A | 2014-11-19 | |||
| CN104753595A | 2015-07-01 | |||
| CN105119655A | 2015-12-02 | |||
| CN102461017A | 2012-05-16 | |||
| US20150147069A1 | 2015-05-28 |
Other References:
See also references of EP 3491750A4
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