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Method and device for public phase error estimation guided by soft information decision

A common phase error and equipment technology, applied in the baseband system, baseband system components, transmission monitoring, etc., can solve the problem of reducing the performance of OFDM

Active Publication Date: 2022-03-01
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

CPE causes constellation rotation, which can seriously degrade the performance of Orthogonal Frequency Division Multiplexing (OFDM) systems (especially OFDM systems with high modulation orders and high carrier frequencies)

Method used

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  • Method and device for public phase error estimation guided by soft information decision
  • Method and device for public phase error estimation guided by soft information decision
  • Method and device for public phase error estimation guided by soft information decision

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Embodiment Construction

[0017] The present disclosure will now be described more fully hereinafter with reference to the accompanying drawings, in which embodiments of the disclosure are shown. However, this disclosure may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these exemplary embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the apparatus and methods to those skilled in the art. The same reference numerals denote the same elements throughout.

[0018] It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may be present. In contrast, when an element is referred to as being "directly connected" or "directly coupled" to another element, there are no intervening elements present. As used herein, the term "and / or" incl...

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Abstract

A method and device for decision-directed public phase error estimation based on soft information are provided. The method includes: receiving at least one signal from a transceiver through at least one antenna of the receiver; detecting at least one data symbol within the at least one signal; determining a probability associated with the at least one detected data symbol; channel state information (CSI) of at least one channel between the at least one antenna of the receiver; based on the probability associated with the detected at least one data symbol and the CSI of the at least one channel, estimating the at least one The common phase error (CPE) of the signal.

Description

[0001] This application claims U.S. Provisional Patent Application No. 62 / 442,047, filed January 4, 2017, with the USPTO and U.S. Nonprovisional Patent Application No. 15 / 455,979, filed March 10, 2017 priority of said application, the entire content of which is hereby incorporated by reference. technical field [0002] The present disclosure relates generally to wireless communication systems, and more particularly, to a method and apparatus for decision-directed common phase error (CPE) estimation. Background technique [0003] In wireless communication systems, CPE is usually caused by phase noise and uncompensated frequency offset. CPE causes constellation rotation, which can severely degrade the performance of Orthogonal Frequency Division Multiplexing (OFDM) systems, especially OFDM systems with high modulation orders and high carrier frequencies. Pilot signal based CPE estimation is typically used to compensate for such constellation rotation. Due to the lack of a su...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L27/00H04L25/02
CPCH04L25/0224H04L27/0014H04L2027/0026H04L2027/0067H04L27/2679H04L25/067H04L27/2657H04L27/2675H04B17/309H04L25/03318H04L25/0256H04B7/0626H04B17/345
Inventor 庄斌南程红兵李正元
Owner SAMSUNG ELECTRONICS CO LTD