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:
May. 05, 2015
Filed:
Oct. 29, 2008
Applicants:
Jong RO Park, San Ramon, CA (US);
Chun Woo Lee, San Ramon, CA (US);
Kuo-chun Lee, San Diego, CA (US);
Inventors:
Jong Ro Park, San Ramon, CA (US);
Chun Woo Lee, San Ramon, CA (US);
Kuo-Chun Lee, San Diego, CA (US);
Assignee:
QUALCOMM Incorporated, San Diego, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04Q 7/20 (2006.01); H04W 56/00 (2009.01); H04B 17/00 (2006.01); H04W 36/00 (2009.01); H04W 36/08 (2009.01);
U.S. Cl.
CPC ...
H04W 56/0015 (2013.01); H04B 17/0047 (2013.01); H04B 17/0077 (2013.01); H04W 36/0033 (2013.01); H04W 36/08 (2013.01); H04W 56/0045 (2013.01); H04W 56/0065 (2013.01);
Abstract
Techniques presented herein disclose handover using increased probability of the fast ranging success. Propagation delay of the RF signal transmitted from an MS to a target BS may be estimated based on a known propagation delay to a current serving BS and a relative difference in propagation delays to the current serving BS and the target BS, for example, as indicated by different receive times of preamble sequences transmitted from the current serving BS and the target BS.