Invention Grant
- Patent Title: Apparatus and method for estimating carrier-to-interference-and-noise ratio in an orthogonal frequency division multiplexing system
- Patent Title (中): 用于估计正交频分复用系统中的载波与干扰和噪声比的装置和方法
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Application No.: US11393000Application Date: 2006-03-30
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Publication No.: US08130878B2Publication Date: 2012-03-06
- Inventor: Seong-Wook Song , Jae-Hwan Chang , Young-Mo Gu
- Applicant: Seong-Wook Song , Jae-Hwan Chang , Young-Mo Gu
- Applicant Address: KR Suwon-si
- Assignee: Samsung Electronics Co., Ltd.
- Current Assignee: Samsung Electronics Co., Ltd.
- Current Assignee Address: KR Suwon-si
- Agency: Roylance, Abrams, Berdo & Goodman, LLP
- Priority: KR10-2005-0026830 20050330
- Main IPC: H03D1/04
- IPC: H03D1/04 ; H04L25/08
Abstract:
An apparatus and method for estimating a carrier-to-interference-and-noise ratio (CINR) of a received signal in an orthogonal frequency division multiplexing (OFDM) system are provided. A band-pass filter attenuates a signal region of the received signal and passes a signal in a noise region. A first power calculator calculates interference and noise power of the noise-region signal received from the band-pass filter. A second power calculator calculates total received power of the received signal. A ratio calculator calculates a CINR based on the interference and noise power, and the total received power.
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