Multiplex communications – Channel assignment techniques – Carrier sense multiple access
Reexamination Certificate
2011-01-25
2011-01-25
Kumar, Pankaj (Department: 2467)
Multiplex communications
Channel assignment techniques
Carrier sense multiple access
C370S431000, C370S338000, C370S441000, C370S447000, C370S462000, C455S234100, C455S423000
Reexamination Certificate
active
07876770
ABSTRACT:
Techniques for and apparatus capable of implementing packet detection and signal recognition in wireless communications systems are disclosed. In particular, the disclosed techniques and apparatus incorporate at least one of relative energy detection operable on assessment of a relative energy threshold for an inbound signal borne across an RF channel, carrier sense operable upon on assessment of at least one of a peak-to-sidelobe ratio and peak-to-peak distance defined by the inbound signal, and comparison operable upon demodulated data corresponding to the inbound signal as compared to predetermined preamble data. Clear channel assessment is performed based on determinations undertaken by one or more of the aforementioned relative energy detection, carrier sense and comparison operations.
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Feng Weishi
Hsu Yungping
Hu Guorong
Tang Hsiao-Cheng
Kumar Pankaj
Marvell International Ltd.
Sharma Gautam
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