12. The WTRU of claim 11 , wherein the reference picture list associated with the current prediction unit comprises a plurality of reference pictures, and the processor is further configured to: retrieve a reference picture from the reference picture list associated with the current prediction unit; determine whether a motion vector scaling operation is associated with using the reference picture as a motion vector prediction candidate for performing motion vector prediction; and select the motion vector prediction candidate from the reference picture list associated with the current prediction unit based on the determining.
12. The WTRU of claim 11 , wherein the reference picture list associated with the current prediction unit comprises a plurality of reference pictures, and the processor is further configured to: retrieve a reference picture from the reference picture list associated with the current prediction unit; determine whether a motion vector scaling operation is associated with using the reference picture as a motion vector prediction candidate for performing motion vector prediction; and select the motion vector prediction candidate from the reference picture list associated with the current prediction unit based on the determining. 15. The WTRU of claim 12 , wherein the processor is further configured to determine that a motion vector scaling operation is not associated with using the reference picture as the motion vector prediction candidate for performing motion vector prediction on a condition that the reference picture has a same POC distance from a picture associated with the current prediction unit as the POC distance between a picture associated with the co-located prediction unit and a reference picture of the co-located prediction unit.