Patent ID: 8230462
Filing Date: 2012-07-24
Classification: H04N

Abstract:
1. A method of enhancing stream layer transmission for a MediaFLO mobile multimedia multicast system comprising a transmitter and a receiver, wherein a plurality of multicast logical channels (MLC) forming a data frame is sent from said transmitter, wherein each MLC comprises multimedia data streams comprising a stream 0 data packet, a stream 1 data packet, a stream 2 data packet, and parity data bits, and wherein four data frames comprises a super-frame, and wherein each said super-frame comprises time-division multiplexing (TDM) pilots, Overhead Information Symbols (OIS), data, and a Pilot Positioning Channel (PPC); said receiver performing a process comprising: performing code word (CW) computations on a current channel being accessed by said receiver; anticipating a favorite channel that a user is statistically mostly likely to switch to on said receiver at any particular time; periodically monitoring the OIS for each favorite channel every 2N periods, where N is a crypto period of a CW; remaining in a sleep mode while data bursts are received from non-favorite channels; waking up from said sleep mode during data bursts of the anticipated favorite channel; performing the same CW computations being performed on said current channel on said anticipated favorite channel prior to selection of said anticipated favorite channel by said user; and performing a cyclic redundancy check (CRC) of said stream