公开(公告)号：US20200374035A1

公开(公告)日：2020-11-26

申请号：US16993124

申请日：2020-08-13

Applicant: Samsung Electronics Co., Ltd.

Inventor： Farrokh ETEZADI ,  Hyukjoon KWON ,  Jooyeol YANG

IPC: H04L1/00 ,  H04L1/24

Abstract: A method of signal demodulation includes receiving, by a signal receiver, a first signal modulated by a symbol corresponding to a point in a constellation; generating, by the signal receiver and on the basis of the first signal, a first initial modulation estimate; identifying, by the signal receiver and on the basis of the first initial modulation estimate, a row or column of an initial candidate lookup table, the row or column corresponding to a region of the constellation; reading, by the signal receiver, from the row or column of the initial candidate lookup table one or more first initial candidate points of the constellation, at least one among the one or more first initial candidate points being more distant, from a center of the region, than a point, in the constellation, not among the one or more first initial candidate points, and demodulating, by the signal receiver and on the basis of the one or more first initial candidate points, the first signal.

公开(公告)号：US20200119835A1

公开(公告)日：2020-04-16

申请号：US16231329

申请日：2018-12-21

Applicant: Samsung Electronics Co., Ltd.

Inventor： Farrokh ETEZADI ,  Hyukjoon KWON ,  Jooyeol YANG

IPC: H04L1/00 ,  H04L1/24

Abstract: A system and method for receiving a quadrature amplitude modulation symbol. In some embodiments, the symbol has a plurality of bits and is associated with a point in a constellation of quadrature amplitude modulation points, each point of the constellation having associated with it a binary word. The method includes receiving a first analog signal carrying a modulation; performing initial estimation, to generate a first initial modulation estimate, for a portion of the first analog signal carrying a modulation; identifying, based on the first initial modulation estimate, a row of an initial candidate lookup table, the row corresponding to a region of the constellation; and reading from the row of the initial candidate lookup table a first plurality of initial candidate points of the constellation.