Multiplex communications – Communication over free space – Message addressed to multiple destinations
Reexamination Certificate
2008-06-11
2011-11-08
Pham, Brenda H (Department: 2464)
Multiplex communications
Communication over free space
Message addressed to multiple destinations
C370S349000
Reexamination Certificate
active
08054772
ABSTRACT:
Disclosed herein is a method for data communication between a wireless-communication system and one or more wireless-communication devices. The wireless-communication system broadcasts a standard pilot signal over a pilot channel. The method comprises (a) the wireless-communication system transmitting a first broadcast-mode message in a coverage area of the wireless-communication system, wherein the first broadcast-mode message indicates that the wireless-communication system will be operating in an alternative broadcast mode, and (b) the wireless-communication system operating in the alternative broadcast mode. Operating in the alternative broadcast involves (i) generating a modified pilot signal comprising the standard pilot signal and a data message inserted in the standard pilot signal and (ii) broadcasting the modified pilot signal via the pilot channel, which enables a wireless-communication device receiving the modified pilot signal to extract the data message therefrom.
REFERENCES:
patent: 2004/0179506 (2004-09-01), Padovani et al.
Haldar Debashis
Routt William
Subramanyan Badri
Upadhyay Piyush
Witzgall John
Pham Brenda H
Sprint Spectrum L.P.
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