Multi-clock physical layer [[PHY] preamble design and detection

Patent metadata

Field	Value
Publication number	US-9130704-B2
Application number	US-201414193428-A
Country	US
Kind code	B2
Filing date	Feb 28, 2014
Priority date	Feb 10, 2011
Publication date	Sep 8, 2015
Grant date	Sep 8, 2015

Abstract

In a method for detecting, at a first communication device, a clock rate of a physical layer (PHY) data unit, the PHY data unit is received, at the first communication device, from a second communication device via a communication channel. The PHY data unit includes (i) a first portion and (ii) a second portion following the first portion. At the first communication device, the first portion of the PHY data unit is processed. Processing the first portion of the PHY data unit includes performing one or more autocorrelations to generate one or more respective autocorrelation outputs. At the first communication device and based on at least one of the one or more autocorrelation outputs, a clock rate of the second portion of the PHY data unit is determined.

First claim

What is claimed is:

1. A method for detecting, at a first communication device, a clock rate of a physical layer (PHY) data unit, the method comprising:
receiving, at the first communication device, the PHY data unit from a second communication device via a communication channel, wherein the PHY data unit includes (i) a first portion and (ii) a second portion following the first portion;
processing, at the first communication device, the first portion of the PHY data unit, where…

Assignees

• Marvell World Trade Ltd

Inventors

• Zhang Hongyuan
• Banerjea Raja

Classifications

• H04L27/2613

  Electricity · mapped topic

• H04L27/2601

  Electricity · mapped topic

• H04L7/0016 Primary

  Electricity · mapped topic

• H04L27/2603 Primary

  Electricity · mapped topic

• H04L27/2666

  Electricity · mapped topic