Multi-user MIMO systems and methods

Details Multi-user MIMO systems and methods Multi-user MIMO systems and methods

2006-10-12

2011-11-08

Tran, Khai (Department: 2611)

Pulse or digital communications

Systems using alternating or pulsating current

Plural channels for transmission of a single pulse train

Reexamination Certificate

active

08054898

ABSTRACT:
A method is provided for scheduling data transmission in a Multiple-Input Multiple-Output (MIMO) Orthogonal Frequency Division Multiplexing (OFDM) system. The MIMO-OFDM system may comprise at least one MIMO-OFDM transmitter and at least one MIMO-OFDM receiver. Feedback from one or more receivers may be used by a transmitter to improve quality, capacity, and scheduling in MIMO-OFDM communication systems. The method may comprise generating or receiving information pertaining to a MIMO channel metric and information pertaining to a Channel Quality Indicator (CQI) in respect of a transmitted signal; and sending a next transmission to a receiver using a MIMO mode selected in accordance with the information pertaining to the MIMO channel metric, and an adaptive coding and modulation selected in accordance with the information pertaining to the CQI.

REFERENCES:
patent: 2005/0025254 (2005-02-01), Awad et al.
patent: 2005/0043031 (2005-02-01), Cho et al.
patent: 2005/0085195 (2005-04-01), Tong et al.
patent: 2006/0072508 (2006-04-01), Zou et al.
patent: 2008/0132281 (2008-06-01), Kim et al.
patent: WO03-085875 (2003-10-01), None

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