Offset modulation orthogonal frequency division multiplexing (OFDM) and multi-access transmission method with cyclic prefix (CP)

US8947996B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8947996-B2
Application numberUS-201013574773-A
CountryUS
Kind codeB2
Filing dateDec 31, 2010
Priority dateJan 22, 2010
Publication dateFeb 3, 2015
Grant dateFeb 3, 2015

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Abstract

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The present invention provides an Offset Modulation Orthogonal Frequency Division Multiplexing (OFDM) and multi-access transmission method with a Cyclic Prefix (CP), including a generating method of the sent signal in the sending terminal and a processing method of the received signal in the receiving terminal, the method includes: in the sending terminal, performing generalized discrete Fourier Transform on real-value digital baseband modulated symbols and obtaining the frequency-domain signal; performing conjugate symmetric extension, frequency-domain filtering, sub-carrier mapping on the frequency-domain signal; performing Inverse Fast Fourier Transform on the frequency-domain signal after sub-carrier mapping; inserting a CP and obtaining the time-domain sent signal; in the receiving terminal, including: removing the CP, performing Fast Fourier Transform on CP removed symbols and obtaining the frequency-domain received signal; and based on multiple user joint frequency-domain equalization performing iterative detection decoding on the frequency-domain received signal. The present invention can obtain the low-signal envelope volatility in the condition of remaining spectrum efficiency, and adopting iterative received signal processing method based on multiple user joint frequency-domain equalization ensures the transmission reliability with low-complexity.

First claim

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The invention claimed is: 1. An offset modulation-orthogonal frequency division multiplexing (OM-OFDM) transmission method with cyclic prefix, wherein the transmission method includes a method for generating transmitted signals and a method for processing received signals, wherein, the method for generating transmitted signals includes the following steps: a. performing channel encoding and symbol mapping for the transmitted information bits, to obtain digital baseband modulatio…

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What does patent US8947996B2 cover?
The present invention provides an Offset Modulation Orthogonal Frequency Division Multiplexing (OFDM) and multi-access transmission method with a Cyclic Prefix (CP), including a generating method of the sent signal in the sending terminal and a processing method of the received signal in the receiving terminal, the method includes: in the sending terminal, performing generalized discrete Fourie…
Who is the assignee on this patent?
Gao Xiqi, Wang Wenjin, You Xiaohu, and 3 more
What technology area does this patent fall under?
Primary CPC classification H04L27/2698. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Feb 03 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).