R4-021446 Discussion on linear or logarithmic L3 filtering (Ericsson)
KPN and Motorola objected figure 5, the reason the blue line and the green line are so separate is the filter coefficient chosen, if it is required that the filter response follows closely the non-filtered signal (green), the coefficients can be selected to allow for a faster response.
Josef Blanz (Qualcomm) commented figure 6, the delay of the log filter when the user is approaching to the cell is always bigger than that of the linear filter. The figures only go up to 30kmph, this effect would be more remarkable at higher speeds. Josef also noted that in a CDMA system is more important that a valid cell is added to the active set as soon as possible when it becomes selectable than a cell that becomes non valid is dropped from the active set list.
Dostları ilə paylaş: |
