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System and method for low density spreading modulation detection

A low-density, blind detection technology, applied in transmission systems, multiplexing code types, electrical components, etc., can solve problems such as increased overhead

Active Publication Date: 2015-08-05
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In general LDS can require the receiver to have knowledge of the extended signatures used by the various transmitters, which can significantly increase the overhead

Method used

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  • System and method for low density spreading modulation detection
  • System and method for low density spreading modulation detection
  • System and method for low density spreading modulation detection

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Embodiment Construction

[0024] 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 full range of equivalents. make changes within the scope.

[0025] Aspects of the invention reduce overhead in Low Density Spread (LDS) networks by discovering (or identifying) LDS signatures via blind detection, thereby avoiding the need to transmit unsolicited signature assignments on the control channel. Embodiments of the present invention thus allow the receiver to perform LDS detection without prior knowledge of the active signature used to pe...

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Abstract

In one embodiment, a method for blindly detecting low density spreading (LDS) active signatures including receiving, by a first node from a second node, a signal and decorrelating the signal in accordance with a signature list to obtain an active signature list. The method also includes decoding the signal in accordance with the active signature list to obtain a decoded signal.

Description

[0001] This application claims to protect the U.S. Provisional Application No. 61 / 737,601 filed on December 14, 2012 with the title of "System and Method for Low Density Spreading Modulation Detection" and the title of the invention submitted on June 13, 2013 as "System and Method 13 / 917,319 for Low Density Spreading Modulation Detection," both of which are incorporated herein by reference. technical field [0002] The present invention relates to systems and methods for wireless communication, and in particular to systems and methods for Low Density Spread (LDS) modulation detection. Background technique [0003] Code Division Multiple Access (CDMA) is a channel access method used by communication technology in which several users transmit information simultaneously on a single channel, such as a common frequency, using different spreading signatures. CDMA involves spread spectrum techniques in which the modulated coded signal has a much higher data bandwidth than the commu...

Claims

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Application Information

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IPC IPC(8): H04W74/00
CPCH04B1/707H04J13/0007H04B1/709H04B1/71052
Inventor 默罕默德哈迪·巴里侯赛因·尼克泊阿里瑞扎·白野斯特
Owner HUAWEI TECH CO LTD
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