METHODS, SYSTEMS, AND COMPUTER PROGRAM PRODUCTS FOR SELECTING DELAY POSITIONS FOR A RAKE RECEIVER BY ADJUSTING THE DELAY POSITIONS BASED ON COMPARISONS OF SIGNAL TO INTERFERENCE RATIOS AND/OR POWERS FOR MULTI-PATH SIGNALS OVERTIME

摘要

Delay positions for a RAKE receiver are selected by searching a plurality of mufti-paths to select a set of mufti-path delays associated with the highest signal to interference ratios (SIRS) and/or power values while maintaining a minimum distance between the mufti-path delays during a first time interval. Respective SIRs and/or power values associated with the respective mufti-path delays are determined during a second time interval. The respective SIRS and/or power values are filtered based on the SIRs and/or power values obtained while searching the plurality of mufti-paths during the first time interval and determining respective SIRs and/or power values for the mufti-path delays during the second time interval. For each of the respective mufti-path delays, the respective filtered SIR and/or power value associated with the respective mufti-path delay is compared with the SIRS and/or power values associated with delays immediately adjacent to that mufti-path delay. For each of the respective mufti-path delays, a respective mufti-path delay position is adjusted based on the result of comparing the respective filtered SIR and/or power value associated with the respective mufti-path delay with the filtered SIRs and/or power values associated with delays immediately adjacent to the respective mufti-path delay. Respective mufti-path delay positions are then assigned to fingers of a RAKE receiver.