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:
Jun. 30, 2009
Filed:
Mar. 13, 2003
Gibong Jeong, San Diego, CA (US);
Gibong Jeong, San Diego, CA (US);
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
A method and apparatus adaptively scales the decoder input for a low-cost user equipment (UE) to reduce the memory requirement without degrading decoder performance. In order to optimize the decoder performance for a small number of input bits, the method estimates the interference of the inner receiver output and scales the decoder input such that its variance is kept constant. The method further estimates the interference of the Pilot channel and translates it into the interference of the data channel in order to avoid the estimation bias problem in a noisy channel. The method then uses a difference value of the phase-corrected pilot symbol to solve the fading rate dependency problem of the sample mean method. For a Rake receiver, the method sums up the interference estimated from each finger. For a multi-antenna receiver, the method sums up the interference estimated from each antenna demodulating element.