US 12,294,410 B2
Trigger-based optical wireless communication system
Andreas Felix Alfred Bluschke, Eindhoven (NL); Haimin Tao, Eindhoven (NL); and Karnekumar Arulandu, Breda (NL)
Assigned to SIGNIFY HOLDING, B.V., Eindhoven (NL)
Appl. No. 18/014,681
Filed by SIGNIFY HOLDING B.V., Eindhoven (NL)
PCT Filed Jun. 23, 2021, PCT No. PCT/EP2021/067081
§ 371(c)(1), (2) Date Jan. 5, 2023,
PCT Pub. No. WO2022/008240, PCT Pub. Date Jan. 13, 2022.
Claims priority of application No. 20185227 (EP), filed on Jul. 10, 2020.
Prior Publication US 2023/0224038 A1, Jul. 13, 2023
Int. Cl. H04B 10/116 (2013.01)
CPC H04B 10/116 (2013.01) 13 Claims
OG exemplary drawing
 
1. A method for operating an access point in an optical wireless communication network, the method comprising the access point:
operating in a low power state for detecting a first optical signal from an end point device on a first optical channel;
generating a trigger signal after detecting the first optical signal;
switching from the low power state to a normal operation state based on the generated trigger signal;
operating in the normal operation state for establishing a high-speed optical data link with the end point device;
switching back to the low power state from the normal operation state when there is no active high-speed optical data link with any end point device for a predefined period of time; and
wherein the access point dissipates less power in the low power state than in the normal operation state,
wherein prior to generating the trigger signal, the method further comprises the access point:
negotiating on a setting for the high-speed optical data link with the end point device on the first optical channel upon the detection of the first optical signal;
and wherein the step of generating the trigger signal follows after a setting for the high-speed optical data link is agreed between the access point and the end point device;
and wherein the high-speed optical data link is established on an optical data channel different from the first optical channel.