Telecommunications – Transmitter and receiver at separate stations – With control signal
Reexamination Certificate
2009-12-07
2011-10-25
Le, Nhan (Department: 2618)
Telecommunications
Transmitter and receiver at separate stations
With control signal
C455S067110, C455S513000, C455S562100
Reexamination Certificate
active
08045932
ABSTRACT:
Aspects of a double search user group selection scheme with range reduction for FDD multiuser MIMO downlink transmission with finite-rate channel state information feedback are provided. The method may comprise maximizing system capacity using feedback information for a plurality of signals in a frequency division duplex system to reduce a search range within which a group of signals having maximum channel gain are located. The feedback information may comprise quantized gain for the signals. Quantized channel direction for the signals within the reduced search range may be requested and received by the transmitter. One or two signals from the reduced search range that maximizes system capacity may be selected. The receivers associated with these signals may then be selected as the user group.
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Rooyen Pieter van
Zhang Chengjin
Zheng Jun
Broadcom Corporation
Le Nhan
McAndrews Held & Malloy Ltd.
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