Patent Number: 7,738,607

Title: Method and system for cluster processing using conjugate gradient-based MMSE equalizer and multiple transmit and/or receive antennas for HSDPA, STTD, closed-loop and normal mode

Abstract: Methods and systems for processing signals in a receiver are disclosed herein and may include generating a plurality of chip-rate synchronously sampled signals utilizing a plurality of received clusters. At least a portion of the generated plurality of chip-rate synchronously sampled signals may be simultaneously equalized in time domain and in spatial domain. The equalization may be based on a plurality of weight values calculated for the plurality of received clusters. The weight values may be iteratively computed utilizing a time-based adaptation method, such as a conjugate gradient (CG) search. The equalized portion of the generated plurality of chip-rate synchronously sampled signals may be added to generate a total equalized signal. The total equalized signal may be demodulated to generate a demodulated signal. At least one convolutional code and/or turbo code within the demodulated signal may be decoded.

Inventors: Landau; Uri (San Diego, CA), Kent; Mark (Vista, CA), Catreux-Erceg; Severine (Cardiff, CA), Erceg; Vinko (Cardiff, CA)

Assignee: Broadcom Corporation

International Classification: H04B 7/10 (20060101); H04L 1/02 (20060101)

Expiration Date: 2022-06-15 0:00:00