Patent · US Active

Packet detection and bandwidth classification for variable-bandwidth packets

US9780921B2 · kind B2 · utility

0Cited by

5References

19Claims

0Family size

Assignee

QUALCOMM Incorporated · US

Inventors

Peter Zillmann · Nuremberg, DE
Christoph Arnold Joetten · Bitburg, DE
Christian Pietsch · Nuremberg, DE
Nicola Varanese · Nuremberg, DE

Key dates

Filing date	Jul 11, 2014
Grant date	Oct 3, 2017
Priority date	—
Expiry date	May 25, 2035

Classification

Technology area (CPC H)Electricity
CPC primaryH04L25/0262
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

A receiver receives packets without prior knowledge of their bandwidths. The receiver calculates a first auto-correlation function for a first channel, a second auto-correlation function for a second channel, and a dot product of the first auto-correlation function and the second auto-correlation function. A packet is detected and its bandwidth classified based at least in part on the dot product.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.