Method of adaptive motion vector resolution for video coding

A method of MVP (motion vector prediction) for video data, the method comprising:

• receiving input data associated with a current MV (motion vector) for a current block in a current slice;
• determining current MV resolution for the current MV, reference MV resolution for a reference MV associated with a reference block in a reference picture, or both the current MV resolution and the reference MV resolution;
• and
• applying MVP coding to the current MV or storing the current MV depending on the current MV resolution, the reference MV resolution, or both the current MV resolution and the reference MV resolution, wherein when the reference MV associated with the reference block in the reference picture corresponds to a temporal MV associated with a temporal reference block in the reference picture and the current MV resolution corresponds to integer pixel resolution, said applying MVP coding to the current MV uses a modified temporal MV as a motion vector predictor for the current MV, wherein the modified temporal MV is generated by right-shifting the temporal MV, wherein an offset is added to the temporal MV before the temporal MV is right-shifted to generate the modified temporal MV.