Spatial multiplexing in a cellular network

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United States of America Patent

PATENT NO 9210709
APP PUB NO 20130176968A1
SERIAL NO

13781048

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Abstract

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The present invention provides methods and apparatus for implementing spatial multiplexing in conjunction with the one or more multiple access protocols during the broadcast of information in a wireless network. A subscriber unit for use in a cellular system is disclosed. The subscriber unit includes: spatially separate receivers, a spatial processor, and a combiner. The spatially separate receivers receive the assigned channel composite signals resulting from the spatially separate transmission of the subscriber downlink datastream(s). The spatial processor is configurable in response to a control signal transmitted by the base station to separate the composite signals into estimated substreams based on information obtained during the transmission of known data patterns from at least one of the base stations. The spatial processor signals the base stations when a change of a spatial transmission configuration is required. The combiner combines the estimated substreams into a corresponding subscriber datastream.

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Patent Owner(s)

Patent OwnerAddress
APPLE INCONE APPLE PARK WAY CUPERTINO CA 95014

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chopra, Rahul Campbell, US 8 391
Heath,, Jr Robert W Los Altos, US 29 1238
Paulraj, Arogyaswami J Stanford, US 48 3779
Sebastian, Peroor K Mountain View, US 37 2811

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