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.
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. 16. The WTRU of claim 15 , wherein the POC distance between the co-located prediction unit and a reference picture of the co-located prediction unit comprises a difference between a POC value associated with a co-located picture associated with the co-located prediction unit and a POC value associated with the reference picture of the co-located prediction unit.