METHOD AND APPARATUS FOR DETECTING TRANSMISSION OF A PACKET IN A WIRELESS COMMUNICATION SYSTEM

METHOD AND APPARATUS FOR DETECTING TRANSMISSION OF A PACKET IN A WIRELESS COMMUNICATION SYSTEM

A method and apparatus for detecting transmission of a packet in a wireless communication system are disclosed. A packet includes a preamble which comprises multiple repetition of a training sequence. A signal is detected and the detected signal is correlated with a delayed version of the detected s...

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Hauptverfasser: TSAI KUNJU, YANG YONGWEN, OLESEN ROBERT L, LU I-TAI
Format: Patent
Sprache:eng
Schlagworte:
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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creator TSAI KUNJU
YANG YONGWEN
OLESEN ROBERT L
LU I-TAI
description A method and apparatus for detecting transmission of a packet in a wireless communication system are disclosed. A packet includes a preamble which comprises multiple repetition of a training sequence. A signal is detected and the detected signal is correlated with a delayed version of the detected signal which is delayed by a predetermined delay time to generate a sequence of correlations. The correlations are normalized. A difference between a first normalized correlation and a second normalized correlation that are separated by the predetermined delay time is calculated. The difference is compared to a threshold. A transmission of the packet is detected based on the comparison. The first and second normalized correlations may be averaged over first and second averaging periods, respectively. A point generating a maximum difference may be identified, and packet synchronization may be performed based on the identified point.
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subjects ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
title METHOD AND APPARATUS FOR DETECTING TRANSMISSION OF A PACKET IN A WIRELESS COMMUNICATION SYSTEM
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