Pulse or digital communications – Transmitters
Reexamination Certificate
2006-03-21
2010-02-16
Torres, Juan A (Department: 2611)
Pulse or digital communications
Transmitters
C714S748000, C714S749000
Reexamination Certificate
active
07664198
ABSTRACT:
A system and method for broadcasting content data to a plurality of mobile devices. The content data is arranged into data blocks, and each data block is broadcast using an initial set of rateless transmission symbols. Mobile devices that did not receive a sufficient number of initial symbols respond with a no acknowledgment (“NACK”) message, and a NACK rate for the broadcast system is monitored. Responsive to the NACK rate, additional symbols may be broadcast or otherwise transmitted to mobile devices, and, the NACK rate is used to determine when to terminate transmission of additional symbols for a particular data block. An initial set of symbols for the next data block may be transmitted concurrently with the additional symbols for one or more previous data blocks. The NACK rate may also be used as feedback to the broadcast system to adjust the transmission scheme.
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Kalhan Amit
Nicolas Julien
Kyocera Corporation
Torres Juan A
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