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.

Date of Patent:
Jun. 02, 2009

Filed:

Feb. 04, 2003
Applicant:

John Cheong-wai Ngan, Shawnee, KS (US);

Inventor:

John Cheong-Wai Ngan, Shawnee, KS (US);

Assignee:

Sprint Spectrum L.P., Overland Park, KS (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03C 7/02 (2006.01); H04B 1/02 (2006.01); H04B 7/02 (2006.01);
U.S. Cl.
CPC ...
Abstract

A method and system for diversity transmission from a mobile station. Signals sent from a mobile station to a base station may suffer from fading. To combat this, diversity transmission is used to compensate for the effects of fading and destructive multi-path interference by sending two or more signals. Signals to be transmitted from the mobile station are split into a first split signal and a second split signal and diversified from one another. Diversification of the split signals may be accomplished by modifying the phase of either the first split signal, the second split signal or both the first and second split signal. The diversified signals may then be transmitted from a first and second antenna.


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