09503285 cites 14 patents.

Various aspects disclosed are directed to improvements to channel estimation through more efficient cancelation of neighboring common reference signals (CRS). Cancelation of CRS from other cells allows the user equipment (UE) a better opportunity for accurately detecting the reference signal of the current cell. Alternative aspects have a recursive element that uses previous estimates as the basis for the current channel estimate. The various aspects of the present disclosure generally have two alternative embodiments: (1) initializing the channel estimation for all cells with a previous channel estimate and cancellation of reference signals of non-target cells to accurately update channel estimate of the target cell; and (2) initializing the channel estimate for all cells with a previous channel estimate and cancelation of reference signals of all cells to accurately estimate residual channel estimate of the target cell and update its channel estimate.

Title
Channel estimation for reference signal interference cancelation
Application Number
13/195711
Publication Number
9503285 (B2)
Application Date
August 1, 2011
Publication Date
November 22, 2016
Inventor
Tao Luo
San Diego
CA, US
Taesang Yoo
San Diego
CA, US
Agent
Norton Rose Fulbright US
Assignee
QUALCOMM Incorporated
CA, US
IPC
H04J 11/00
H04L 25/02
H04W 52/02
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