发明名称 Frequency domain filtering to improve channel estimation in multicarrier systems
摘要 A channel estimation system comprises a filtering component that selectively scales a plurality of carriers as a function of location of the plurality of carriers within a frequency band, wherein the plurality of carriers comprises at least one data carrier and at least one pilot carrier. A component thereafter extrapolates an observation from the at least one pilot carrier, wherein a channel is estimated as a function of the extrapolated observation. The scaling of the carriers facilitates reducing a flooring effect associated with channel estimation. The filtering component can be employed at a transmitter and/or at a receiver, and can be activated and/or deactivated as a function of a sensed data packet type.
申请公布号 US7616711(B2) 申请公布日期 2009.11.10
申请号 US20040022360 申请日期 2004.12.22
申请人 QUALCOMM INCORPORATED 发明人 GORE DHANANJAY ASHOK;AGRAWAL AVNEESH;KHANDEKAR AAMOD;GOROKHOV ALEXEI
分类号 H03D1/00;H04L27/06 主分类号 H03D1/00
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