Method, apparatus, and system for session reestablishment or session sharing, and storage medium

An apparatus for session reestablishment, comprising:

• at least one memory configured to store program code;
• and
• at least one processor configured to read the program code and operate as instructed by the program code, the program code comprising:
• determining code configured to cause the at least one processor to determine whether a session receiver supports reestablishment of a predetermined session, in a case that the predetermined session established with the session receiver is interrupted;
• request transmitting code configured to cause the at least one processor to transmit a session reestablishment request of reestablishing the predetermined session to the session receiver, in a case that the predetermined session established with the session receiver is interrupted and the session receiver is determined as supporting reestablishment of the predetermined session;
• and
• reestablishment code configured to cause the at least one processor to reestablish, based on an acknowledgment for the session reestablishment request being received from the session receiver, the predetermined session with the session receiver according to a session reestablishment parameter of the predetermined session, the session reestablishment parameter of the predetermined session being determined based on a status parameter of the predetermined session during interruption.