Device and method for calculating Channel State Information
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United States of America Patent
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Issued Date -
Jun 18, 2009
app pub date -
Mar 13, 2008
filing date -
Dec 12, 2007
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Device and method for calculating channel state information (CSI) are disclosed. The device and method are applied to calculate the channel state information of a dual-carrier modulation system. When a channel equalization value is transmitted into this system, an absolute-value computing unit computes the absolute value for each equalization value. The absolute-value computing unit is electrically connected to a channel classifying unit that is used to separate signals to two channels. Every channel is connected to the equalization-value comparing unit. One smaller value resulted from a comparison operation is employed as the new-defined CSI for these two channels. Afterward, this CSI can be used in a decoder for enhancing the performance of dual-carrier modulation system in a multi-path fading channel.
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