Pulse or digital communications – Spread spectrum – Direct sequence
Reexamination Certificate
2011-03-22
2011-03-22
Ha, Dac V (Department: 2611)
Pulse or digital communications
Spread spectrum
Direct sequence
C375S150000, C375S343000, C370S318000, C370S342000, C370S441000, C370S479000, C455S039000, C455S226200
Reexamination Certificate
active
07912113
ABSTRACT:
A technique for determining a received signal strength indicator of a target base station at a subscriber station includes performing a discrete Fourier transform on a received signal to provide a transformed signal. In this case, the transformed signal occupies one or more segments of a channel and the one or more segments each include multiple subcarriers. A shift-n cross-correlation is calculated based on the transformed signal and a preamble sequence of the target base station to provide a coarse received signal strength indicator for the target base station.
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PCT/US2008/078259 International Search Report Dec. 29, 2008, 4 pages.
Sayana Krishna Kamal
Stewart Kenneth A.
Sudarshan Pallav
Zhuang Xiangyang
Chen Sylvia
Ha Dac V
Motorola Mobility, Inc.
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