Method and apparatus for initiating user plane path re-establishment and communication system

摘要

A method and apparatus for initiating a user plane path re-establishment and a communication system to better serve the terminal session and thereby improve the user experience are disclosed. The method includes: determining, by a session management function entity, a session service area to which a current session of the terminal belongs based on the first location information of the terminal; sent by the mobility management function entity After receiving the second location information of the terminal device, if it is determined that the second location information is not within the session service area, the terminal device performs a re-establishment procedure for a current session. Initiating or instructing to initiate a handover procedure. Frequent handing between two user plane functional entities when the terminal equipment moves back and forth at the edge of the service area of two adjacent user plane functional entities due to the introduction of a session service area. The ping-pong effect caused by over is avoided and the user experience is improved.