Patent ID: 7979561

Claim:
A broadcast method for transmitting information over a wireless broadcast network, comprising: generating a plurality of flows, each flow carrying unique data; generating a plurality of streams, each stream including at least a portion of the unique data carried by at least one of the plurality of flows; determining stream length information for each stream to be transmitted; associating a logical channel with the plurality of streams, the logical channel including an overhead portion, the overhead portion containing a first set of system parameter messages (SPMs), the first set of SPMs including the stream length information of each stream; generating a frame, the frame including the logical channel, the plurality of streams, and a plurality of overhead information symbols (OIS), the OIS containing information identifying the location of the logical channel within the frame and a second set of SPMs identifying the stream lengths of each stream; and transmitting the frame such that the first set of SPMs are transmitted on a first transmission channel and the second set of SPMs are transmitted on a second transmission channel, wherein the second transmission channel has more robust transmission characteristics than the first transmission channel.