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US 2009/0022128 A1Published application
Access point with simultaneous downlink transmission of independent data for multiple client stations
AssigneeMarvell Word Trade Ltd.
InventorsRohit U. Nabar, Hongyuan Zhang, Hui-Ling Lou
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Abstract
A wireless network device comprises R modulation modules that receive R independent data streams, that modulate the R independent data streams, and that apply a multiplexing matrix to generate M modulated and multiplexed data streams, respectively, where R and M are integers greater than one. M summing modules sum portions of each of the M modulated and multiplexed data streams to generate M transmit data streams. M transmitters simultaneously transmit the M transmit data streams during a simultaneous downlink transmission (SDT) period.
Claims30
A wireless network device comprising:
- R modulation modules that receive R independent data streams, that modulate said R independent data streams, and that apply a multiplexing matrix to generate M modulated and multiplexed data streams, respectively, where R and M are integers greater than one;
- M summing modules for summing portions of each of said M modulated and multiplexed data streams to generate M transmit data streams;
- and
- M transmitters that simultaneously transmit said M transmit data streams during a simultaneous downlink transmission (SDT) period.
1 more element
A method comprising:
- receiving R independent data streams;
- modulating said R independent data streams;
- applying a multiplexing matrix to generate M modulated and multiplexed data streams, respectively, where R and M are integers greater than one;
- summing portions of each of said M modulated and multiplexed data streams to generate M transmit data streams;
- and
- simultaneously transmitting said M transmit data streams during a simultaneous downlink transmission (SDT) period.
3 more elements
Dependencies are inferred from the claim text.