Digital broadcast methods and apparatus
A transmitter apparatus at a base station transmits program information using a plurality of carriers with at least some of the carriers having different transmit power levels. The carrier associated with the highest transmit power level conveys broadcast information carrying basic program information. A carrier associated with a lower power level conveys broadcast information including enhancement information and/or additional content. The enhancement information and/or additional content may include a higher level of video and/or audio resolution, additional video and/or audio content, support for additional languages, a text stream, and/or advertisements. A wireless terminal tunes, receives and processes the broadcast information. A wireless terminal can recover different levels of resolution of a broadcast program, e.g., a digital video broadcast program, and/or different amounts of additional content, depending upon which carriers are being used.
QUALCOMM Incorporated
H H H H H H H H H H H
H04H H04W H04H H04W H04L H04W H04B H04W H04B H04B H04H
inventional inventional inventional additional inventional inventional inventional inventional additional inventional inventional
Junyi Arnab Rajiv
Li Das Laroia