Pulse or digital communications – Spread spectrum – Direct sequence
Reexamination Certificate
2007-08-20
2009-12-22
Ha, Dac V (Department: 2611)
Pulse or digital communications
Spread spectrum
Direct sequence
C375S220000, C375S267000, C375S285000, C375S299000, C370S278000, C370S282000, C370S465000, C455S501000, C455S067130, C455S103000, C455S114300, C455S126000
Reexamination Certificate
active
07636381
ABSTRACT:
A system for dynamically adapting the communication characteristics of a multiple antenna system (MAS) with multi-user (MU) transmissions (defined with the acronym MU-MAS), such as a distributed-input distributed-output (DIDO) communication system. For example, a system according to one embodiment of the invention comprises: one or more coding modulation units to encode and modulate information bits for each of a plurality of wireless client devices to produce encoded and modulated information bits; one or more mapping units to map the encoded and modulated information bits to complex symbols; and a MU-MAS or DIDO configurator unit to determine a subset of users and a MU-MAS or DIDO transmission mode based on channel characterization data obtained through feedback from the wireless client devices and to responsively control the coding modulation units and mapping units.
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Forenza,
Forenza Antonio
Heath, Jr. Robert W.
Perlman Stephen G.
Speck John
van der Laan Roger
Blakely , Sokoloff, Taylor & Zafman LLP
Ha Dac V
Rearden LLC
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