Patent ID: 7855959
Filing Date: 2010-12-21
Classification: H04N

Abstract:
1. A method for fast common overhead services acquisition for mobile multimedia multicast system comprising a transmitter that transmits a wireless data stream comprising a superframe comprising multiplexed Multicast Logical Channels (MLCs) to a receiver, said method comprising: encoding overhead information symbol (OIS) information in a first burst of said MLC of each said superframe, wherein said OIS information comprises control channel (CC) information providing service to said MLC in said superframe and reserved flow data comprising: primary flow data carrying a primary message and notifying a device of the current version of other common overhead messages to detect updates to service information, service information data providing service definitions, media presentation guide (MPG), and marketplace information, notification flow data conveying notifications from network to said device related to overhead activities, configuration flow data carrying updates to network-wide operation parameters comprising classification schemes related to user interface activities on said device, and presentation metadata relating to content of real time services; encoding padding in a second burst of said MLC; encoding parity bytes in third and fourth bursts of said MLC; encoding said primary flow data in a final MLC burst per superframe; encoding the remaining reserved flow data at an end of said superframe; transmitting said wireless data stream comprising data packets comprising said first MLC with a forward error correction (FEC) rate equal to ½ from said transmitter; receiving said wireless data stream in said receiver; determining a correctness of said CC information by checking cyclic redundancy check (CRC) bits at the end of each received data packet within said CC information; determining a correctness of said primary flow data by checking said CRC bits of said primary flow data; and said transmitter sending the remainder of said reserved flows at the end of said superframe according to the sizes of said reserved flows.