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Method, circuit and system for reducing or eliminating receiving signal noises

A signal-to-noise technology used in wireless digital communications to solve problems such as fading and the ability to reduce high data rate services

Inactive Publication Date: 2011-08-10
SIANO MOBILE SILICON LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Another problem with wireless RF-based transmission is characterized by a multipath channel between the transmitter antenna and the receiver antenna that introduces "fading" in the received signal power
[0008] The combination of attenuation, noise interference and "fade" is a fundamental limitation for wireless network operators, reducing their ability to provide high data rate services such as Internet access and video telephony services

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  • Method, circuit and system for reducing or eliminating receiving signal noises
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  • Method, circuit and system for reducing or eliminating receiving signal noises

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Embodiment Construction

[0024] In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, it will be understood by those skilled in the art that the present invention may be practiced without these specific details. In other instances, well-known methods, procedures, components and circuits have not been described in detail so as not to obscure the present invention.

[0025] Unless specifically stated otherwise, as is apparent from the following discussion, it will be appreciated that throughout the discussion of this specification where terms such as "process," "calculate," "estimate," "determine," and the like are used, these terms refer to computer or the action and / or processing of a computing system or similar electronic computing device that manipulates and / or transforms data represented as physical (such as electronic) quantities in the registers and / or memory of the computing system so that it...

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Abstract

The invention discloses a method, circuit and device for reducing or eliminating receiving signal noises. A first antenna is spatially separated from a second antenna. A noise extractor can generate signals for indicating received noises at the second antenna. A channel estimator can estimate one or more parameters of channels between the first antenna and the second antenna. A filter can use one or more estimated channel parameters to alter the signals which are used for indicating the received noises at the second antenna, thus generating signals for estimating received noises at the first antenna. A signal subtraction module can subtract the signals for estimating the received noises at the first antenna from received signals at the first antenna.

Description

technical field [0001] The invention mainly relates to the field of wireless digital communication. In particular, the present invention relates to removing noise from received data transmitting radio frequency signals, such as Orthogonal Frequency Division Multiplexed (OFDM) signals. Background technique [0002] The characteristics of modern communication networks are such as high bandwidth / high data rate, complex communication protocols, various transmission media, and various access methods. Fiber optic networks cover many areas of the world's surface, serving as long-distance networks for transferring large amounts of data between remote locations on Earth. Where fiber optic networks have not been installed, cable networks and other wired networks supplement the coverage provided by fiber optic networks and are also used as part of a local area network ("LAN") for transferring data between locations in relatively close proximity. In addition to wired networks, wireles...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L27/26H04L25/02H04L25/03H04B7/08
CPCH04L25/022H04L25/0204H04B17/0062H04B17/0055H04B17/21H04B17/345
Inventor R·奥伦
Owner SIANO MOBILE SILICON LTD