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:
Feb. 13, 2001
Filed:
Dec. 30, 1998
Young-sik Lim, Sungnam, KR;
Pyeong-hwan Wee, Seoul, KR;
Abstract
A method for coverage optimization of a multi-frequency assignment communication system employing a dummy pilot channel, particularly a CDMA communication system. A first base station is configured to transmit communication signals to subscriber terminals using at least a first frequency allocation (FA#,) and a second frequency allocation (FA#,). A second base station transmits communication signals to subscriber terminals using FA#,substantially more frequently than FA#,. The second base station has a dummy pilot at FA#,which is used for handoff at FA#,. The method equalizes coverage in the first base station at FA#,and FA#,by transmitting the dummy pilot with less RF power than that for a pilot channel at FA#,of the second base station, and sufficient to substantially equalize a handoff boundary between first and second cells at both FA#,and FA#,in an environment of more communication traffic and associated interference at FA#,than at FA#