Ue reporting of mobility information useful for optimizing ue parameter settings

An apparatus, comprising:

• one or more processors;
• and
• one or more memories including computer program code,
• the one or more memories and the computer program code configured, with the one or more processors, to cause the apparatus to perform at least the following:
• determining that reporting of user equipment mobility information is to be performed;
• and
• reporting, responsive to the determining, the user equipment mobility information, the user equipment mobility information concerning least a time period in one or both of an idle state or a connected state since a transition by the user equipment to a cell, or to a transition by the user equipment to or from a connected state with a cell.