The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 13, 2006
Filed:
Jul. 20, 2001
Andrew S. Wright, Vancouver, CA;
Richard E. Ryan, Vancouver, CA;
Bartholomeus T. W. Klijsen, Surrey, CA;
Denis John Peregrym, North Vancouver, CA;
Brenda Davison, West Vancouver, CA;
Andrew S. Wright, Vancouver, CA;
Richard E. Ryan, Vancouver, CA;
Bartholomeus T. W. Klijsen, Surrey, CA;
Denis John Peregrym, North Vancouver, CA;
Brenda Davison, West Vancouver, CA;
PMC - Sierra Inc., Santa Clara, CA (US);
Abstract
The present invention is related to methods and apparatus that can advantageously reduce a peak to average signal level exhibited by single or by multicarrier multibearer waveforms. Embodiments of the invention further advantageously can manipulate the statistics of the waveform without expanding the spectral bandwidth of the allocated channels. Embodiments of the invention can be applied to either multiple carrier or single carrier systems to constrain an output signal within predetermined peak to average bounds. Advantageously, the techniques can be used to enhance the utilization of existing multicarrier RF transmitters, including those found in third generation cellular base stations. However, the peak to average power level managing techniques disclosed herein can apply to any band-limited communication system and any type of modulation. The techniques can apply to multiple signals and can apply to a wide variety of modulation schemes or combinations thereof.