US 2009/0268656 A1 · Fast Common Overhead Services Acquisition for MediaFlo

Abstract

A technique for fast common overhead services acquisition for MediaFLO™ mobile multimedia multicast system, wherein encoding overhead information symbol (OIS) information in a first burst of MLC of each superframe, OIS comprises control channel (CC) information and reserved flow data comprising primary flow data, service information data, notification flow data, configuration flow data, and presentation metadata; encoding padding in second MLC burst; encoding parity bytes in third and fourth MLC bursts; encoding primary flow data in final MLC burst per superframe; encoding the remaining reserved flow data at the end of superframe; transmitting wireless data stream comprising first MLC at ½ forward error correction (FEC) rate and receiving it in receiver; determining a correctness of CC information by checking cyclic redundancy check (CRC) bits at the end of each received data packet; and transmitter sending size wise remainder of reserved flows at the end of superframe.

Claims20

Dependent claims

A method for fast common overhead services acquisition for MediaFLO™ (forward link only) 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 and reserved flow data comprising primary flow data, service information data, notification flow data, configuration flow data, and presentation metadata;
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.

8 more elements

A system for fast common overhead services acquisition for MediaFLO™ (forward link only) mobile multimedia multicast system that transmits a wireless data stream comprising a superframe comprising multiplexed Multicast Logical Channels (MLCs), said system comprising:

means for 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 and reserved flow data comprising primary flow data, service information data, notification flow data, configuration flow data, and presentation metadata;
means for encoding padding in a second burst of said MLC;
means for encoding parity bytes in third and fourth bursts of said MLC;
means for encoding said primary flow data in a final MLC burst per superframe;
means for encoding the remaining reserved flow data at an end of said superframe;
a transmitter that transmits said wireless data stream comprising data packets comprising said first MLC with a forward error correction (FEC) rate equal to ½;
a receiver that receives said wireless data stream;
means for 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;
and
means for determining a correctness of said primary flow data by checking said CRC bits of said primary flow data,
wherein said transmitter sends the remainder of said reserved flows at the end of said superframe according to the sizes of said reserved flows.

8 more elements

a transmitter that:
encodes 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 and reserved flow data comprising primary flow data, service information data, notification flow data, configuration flow data, and presentation metadata;
encodes padding in a second burst of said MLC;
encodes parity bytes in third and fourth bursts of said MLC;
encodes said primary flow data in a final MLC burst per superframe;
encodes the remaining reserved flow data at an end of said superframe;
and
transmits said wireless data stream comprising data packets comprising said first MLC with a forward error correction (FEC) rate equal to ½;
and
a receiver that:
receives said wireless data stream;
determines 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;
determines a correctness of said primary flow data by checking said CRC bits of said primary flow data,
wherein said transmitter sends the remainder of said reserved flows at the end of said superframe according to the sizes of said reserved flows.

11 more elements

Dependencies are inferred from the claim text.

Fast Common Overhead Services Acquisition for MediaFlo

Life of this patent

Fast Common Overhead Services Acquisition for MediaFlo

Life of this patent

Abstract

Claims20