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:
Sep. 10, 2002

Filed:

Sep. 14, 1999
Applicant:
Inventors:

Ming Lu, Hillsborough, NJ (US);

Pengfei Zhu, Morris Plains, NJ (US);

Assignee:

Lucent Technologies Inc., Murray Hill, NJ (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 1/500 ; H04Q 7/20 ;
U.S. Cl.
CPC ...
H04B 1/500 ; H04Q 7/20 ;
Abstract

A method and apparatus for adaptively adjusting the power of a probe signal to be transmitted by user equipment based on a characteristic of received signals and system constants so as to increase the likelihood that the probe signal will be detected by system equipment of a communication system. The Doppler shift of a received pilot signal is derived and an adjustment parameter is calculated based on the Doppler shift, time interval between successive probe transmissions, and system constants. The adjustment parameter is applied to the probe signal to be transmitted to compensate for the effects of fading to be experienced by the probe signal to be transmitted.


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