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:
Aug. 10, 2010
Filed:
Jul. 10, 2007
Christopher J. Hansen, Sunnyvale, CA (US);
Jason A. Trachewsky, Menlo Park, CA (US);
Rajendra Tushar Moorti, Mountain View, CA (US);
Matthew James Fischer, Mountain View, CA (US);
Christopher Young, Cupertino, CA (US);
Christopher J. Hansen, Sunnyvale, CA (US);
Jason A. Trachewsky, Menlo Park, CA (US);
Rajendra Tushar Moorti, Mountain View, CA (US);
Matthew James Fischer, Mountain View, CA (US);
Christopher Young, Cupertino, CA (US);
Broadcom Corporation, Irvine, CA (US);
Abstract
A method for multiple input multiple output wireless communication begins by determining protocols of wireless communication devices within a proximal region. The method continues by determining whether the protocols of the wireless communication devices within the proximal region are of a like protocol. The method continues by determining the number of transmit antennas. The method continues, when the protocols of the wireless communication devices within the proximal region are of the like protocol, formatting a preamble of a frame of the wireless communication utilizing at least one of cyclic shifting of symbols, cyclic shifting of tones, sparse tone allocation, and sparse symbol allocation based on the number of transmit antennas.