Method and apparatus for configuring session in wireless communication system

A user equipment (UE) in a wireless communication system, the UE comprising:

• at least one controller configured to:
• transmit, to a mobility management entity, an attach request for a first network among at least two networks supported by the UE including first UE network capability information indicating support of a second network among the at least two networks,
• receive, from the mobility management entity, an attach response indicating completion of attach to the first network,
• transmit, to the mobility management entity, a session establishment request for the first network, and
• establish a session for the first network through a session management entity supporting mobility between the first network and the second network,
• wherein, in case that the UE network capability of the second network is disabled, the session establishment request includes information related to a session for the second network.

A method performed by a mobility management entity in a wireless communication system, the method comprising:

• receiving, from a user equipment (UE), an attach request for a first network among at least two networks supported by the UE including first UE network capability information indicating support of a second network among the at least two networks;
• transmitting, to the UE, an attach response indicating completion of attach to the first network;
• receiving, from the UE, a session establishment request for the first network;
• and
• establishing a session for the first network through a session management entity supporting mobility between the first network and the second network,
• wherein, in case that UE network capability of the second network is diabled, the session establishment request includes information related to a session for the second network.

A method performed by a user equipment (UE) in a wireless communication system, the method comprising:

• transmitting, to a mobility management entity, an attach request for a first network among at least two networks supported by the UE including first UE network capability information indicating support of a second network among the at least two networks;
• receiving, from the mobility management entity, an attach response indicating completion of attach to the first network;
• transmitting, to the mobility management entity, a session establishment request for the first network;
• and
• establishing a session for the first network through a session management entity supporting mobility between the first network and the second network,
• wherein, in case that UE network capability of the second network is disabled, the session establishment request includes information related to a session for the second network.