Power optimization in visible light communication positioning

A mobile device, comprising:

• image sensors configured to receive visible light communication signals;
• a memory configured to store the visible light communication signals;
• a transceiver configured to receive positioning assistance data of a venue, wherein the positioning assistance data includes identifications and positions of light fixtures in the venue;
• a controller configured to:
• decode one or more light fixtures within a field of view of the mobile device to obtain corresponding light fixture identifications;
• determine a motion of the mobile device with respect to the one or more light fixtures based on the light fixture identifications and the positioning assistance data of the venue;
• and
• switch the image sensors of the mobile device to a reduced duty cycle state based on the motion of the mobile device with respect to the one or more light fixtures within the field of view of the mobile device.

A mobile device, comprising:

• receiver means for receiving positioning assistance data of a venue, wherein the positioning assistance data includes identifications and positions of light fixtures in the venue;
• decoder means for decoding one or more light fixtures within a field of view of the mobile device to obtain corresponding light fixture identifications;
• and
• controller means for determining a motion of the mobile device with respect to the one or more light fixtures based on the light fixture identifications and the positioning assistance data of the venue, and switching image sensors of the mobile device to a reduced duty cycle state based on the motion of the mobile device with respect to the one or more light fixtures within the field of view of the mobile device.

A non-transitory medium storing instructions for execution by one or more processors of a mobile device, the instructions comprising:

• instructions for extracting identifications and positions of light figures in a venue from received positioning assistance data of the venue;
• instructions for decoding one or more light fixtures within a field of view of the mobile device to obtain corresponding light fixture identifications;
• instructions for determining a motion of the mobile device with respect to the one or more light fixtures based on the light fixture identifications and the positioning assistance data of the venue;
• and
• instructions for switching image sensors of the mobile device to a reduced duty cycle state based on the motion of the mobile device with respect to the one or more light fixtures within the field of view of the mobile device.