Ue, andsf, mobile communication system, pgw, and communication method

UE (User Equipment) in a mobile communication system including a PGW (Packet Data Network Gateway), the UE that establishes, with the PGW, a communication path using a first access system and a communication path using a second access system, and an ANDSF (Access Network Discovery and Selection Function) that transmits a mobile operator policy to the UE, the UE comprising:

• receiving the mobile operator policy including an APN identifier, access system identification information, and a degree of compulsion from the ANDSF;
• and
• transmitting, in a case where the degree of compulsion included in the mobile operator policy is a degree of compulsion that compels the UE to perform switching, a request to forcibly switch a communication path used for an APN corresponding to the APN identifier to an access system corresponding to the access system identification information included in the mobile operator policy.

3-5. (canceled)

An ANDSF (Access Network Discovery and Selection Function) in a mobile communication system including a PGW (Packet Data Network Gateway), UE (User Equipment) that establishes, with the PGW, a communication path using a first access system and a communication path using a second access system, and the ANDSF that transmits a mobile operator policy to the UE, the ANDSF comprising:

• transmitting the mobile operator policy including an APN identifier, access system identification information, and a degree of compulsion to the UE,
• wherein the degree of compulsion includes a degree of compulsion that, in a case where the UE has received the mobile operator policy, issues an instruction to forcibly switch a communication path used for an APN corresponding to the APN identifier to an access system corresponding to the access system identification information.

7-17. (canceled)