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System and Method for Orthogonal Frequency Division Multiplexing-Offset Quadrature Amplitude Modulation

A technology of offsetting quadrature amplitude and quadrature frequency division, which is applied in the direction of modulated carrier system, multi-frequency code system, baseband system, etc.

Active Publication Date: 2015-10-14
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For a burst length of 28 OQAM symbols, there is an overhead of 7 / 28=25% in time

Method used

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Embodiment Construction

[0035] It should be understood at the outset that, although an illustrative implementation of one or more embodiments is provided below, the disclosed systems and / or methods may be implemented using any number of techniques, whether currently known or in existence. The invention should in no way be limited to the illustrative implementations, drawings, and techniques illustrated below, including the exemplary designs and implementations illustrated and described herein, but rather be within the scope of the appended claims and their equivalents Modified within the full range of .

[0036] Orthogonal Frequency Division Multiplexing (OFDM) / Offset Quadrature Amplitude Modulation (OQAM) is a multi-carrier transmission technique that incurs overhead due to transmission time or tails at both ends of the transmission burst. In the example, OFDM / OQAM is represented as a linear convolution of the input upsampled OQAM sequence with a set of frequency modulated versions of the prototype ...

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Abstract

A method for performing orthogonal frequency division multiplexing (OFDM) / offset quantization amplitude modulation (OQAM) includes obtaining a data burst. The method includes performing weighted circularly convolved filtering modulation on the data burst to produce an output signal. The method further includes a first wireless device transmitting the output signal to a second wireless device. The second wireless device receives an input signal from the first wireless device, and the second wireless devices performs weighted circularly convolved demodulation filtering on the input signal to produce the data burst.

Description

[0001] The present invention requires U.S. No. 61 / 766,426, filed on February 19, 2013, entitled "System And Method For Weighted Circularly Convolved Filtering in OFDM-OQAM (System And Method For Weighted Circularly Convolved Filtering in OFDM-OQAM)" The provisional patent application and the title of the invention submitted on September 24, 2013 are "System And Method For Orthogonal Frequency Division Multiplexing-Offset Quadrature Amplitude Modulation (System And Method For Orthogonal Frequency Division Multiplexing-Offset Quadrature Amplitude Modulation) )", the contents of which are incorporated herein by reference. technical field [0002] The present invention relates to a system and method for wireless communication, and more particularly to a system and method for Orthogonal Frequency Division Multiplexing (OFDM) / Offset Quadrature Amplitude Modulation (OQAM). Background technique [0003] In wireless communication, Orthogonal Frequency Division Multiplexing (OFDM) can...

Claims

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Application Information

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IPC IPC(8): H04L27/26
CPCH04L27/2698H04L25/03834H04L27/2634H04L27/26362
Inventor 穆哈姆德-贾瓦德·阿布多利贾明马江镭
Owner HUAWEI TECH CO LTD
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