Multiplex communications – Communication over free space – Having a plurality of contiguous regions served by...
Reexamination Certificate
2005-09-21
2010-11-02
Rao, Seema S (Department: 2462)
Multiplex communications
Communication over free space
Having a plurality of contiguous regions served by...
C375S267000, C455S513000, C455S562100, C455S067110, C455S069000
Reexamination Certificate
active
07826416
ABSTRACT:
Certain embodiments of the invention may be found in a method and system for a simplified user group selection scheme with finite-rate channel state information feedback for frequency division duplex (FDD) multiuser multiple-input-multiple-output (MIMO) downlink transmission. Aspects of the method may include selecting, from a plurality of users, a first user having a channel gain that is greater than a channel gain corresponding to a remaining portion of the plurality of users. At least a second user may be selected from a portion of the remaining portion of the plurality of users. The selected at least the second user has a channel direction that may be approximately orthogonal to that of the first user. The channel gain may be defined by a quantized channel gain. A quantized channel direction of the selected first user may be determined for the selecting the at least the second user.
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Rooyen Pieter van
Zhang Chengjin
Zheng Jun
Broadcom Corporation
McAndrews Held & Malloy Ltd.
Rao Seema S
Russell Wanda Z
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