Method and apparatus for transmitting and receiving connection information in wireless communication system

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

• transmitting, to a first entity, a first message for requesting management of a session related to a non-terrestrial network (NTN), the first message including user plane transport network layer connection information for the session supported by a base station;
• and
• receiving, from the first entity, a second message in response to the first message, the second message including information indicating a user plane transport network layer connection for the session,
• wherein the user plane transport network layer connection information is combined with criteria for user plane function (UPF) selection for identifying the user plane transport network layer connection,
• wherein the user plane transport network layer connection information includes delay information indicating a one-way theoretical delay of data on the session and bandwidth information indicating a bandwidth that is supported for the session, and
• wherein the information indicating the identified user plane transport network layer connection is associated with a port internet protocol (IP) address and a port number for the session to be assigned by the base station.

A first entity in a wireless communication system, the first entity comprising:

• a transceiver;
• and
• a controller configured to:
• receive, from a second entity via the transceiver, a first message for requesting management of a session related to a non-terrestrial network (NTN), the first message including user plane transport network layer connection information for the session supported by a base station,
• identify a user plane transport network layer connection for the session, by combining the user plane transport network layer connection information received in the first message and criteria for user plane function (UPF) selection, and
• transmit, to the second entity via the transceiver, a second message in response to the first message, the second message including information indicating the identified user plane transport network layer connection,
• wherein the user plane transport network layer connection information includes delay information indicating a one-way theoretical delay of data on the session and bandwidth information indicating a bandwidth that is supported for the session, and
• wherein the information indicating the identified user plane transport network layer connection is associated with a port internet protocol (IP) address and a port number for the session to be assigned by the base station.

A second entity in a wireless communication system, the second entity comprising:

• a transceiver;
• and
• a controller configured to:
• transmit, to a first entity via the transceiver, a first message for requesting management of a session related to a non-terrestrial network (NTN), the first message including user plane transport network layer connection information for the session supported by a base station, and
• receive, from the first entity via the transceiver, a second message in response to the first message, the second message including information indicating a user plane transport network layer connection for the session,
• wherein the user plane transport network layer connection information is combined with criteria for user plane function (UPF) selection for identifying the user plane transport network layer connection,
• wherein the user plane transport network layer connection information includes delay information indicating a one-way theoretical delay of data on the session and bandwidth information indicating a bandwidth that is supported for the session, and
• wherein the information indicating the identified user plane transport network layer connection is associated with a port internet protocol (IP) address and a port number for the session to be assigned by the base station.