Signaling transmission with localized spreading for wireless communication
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United States of America Patent
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Jun 4, 2013
Grant Date -
May 1, 2008
app pub date -
Sep 7, 2007
filing date -
Sep 8, 2006
priority date (Note) -
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status (Latency Note)
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Abstract
Techniques for transmitting signaling with localized spreading are described. In one design, a transmitter (e.g., a base station) spreads multiple signaling symbols to obtain multiple sets of output symbols and further maps the multiple sets of output symbols to multiple time frequency blocks. The spreading may be localized to each time frequency block. Prior to the spreading, the transmitter may scale the multiple signaling symbols with multiple gains determined based on the transmit power for these signaling symbols. The transmitter may scramble the scaled signaling symbols to obtain scrambled symbols and may spread the scrambled symbols to obtain the multiple sets of output symbols. The transmitter may map each set of output symbols to a respective time frequency block.
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