How and how to change the route

摘要

An embodiment of the present invention discloses a path changing method and apparatus, the method comprising: changing a transmission path of uplink data from a source cell to a target cell according to a first condition or a target uplink grant; The first condition includes a condition for changing when handover is successful, when secondary cell group (SCG) change is successful, when random access of the target cell is successful during handover, or when random access of the target cell is successful during SCG change , the target uplink grant is an uplink grant for the target cell used by the MAC layer of the UE when a preset condition is satisfied, and the preset condition is: handover success, SCG change success, handover It includes any one of random access success of the target cell and random access success of the target cell during SCG change.