Patent ID: 11937225
Assignee: NEC CORPORATION
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 12:
13. A non-transitory computer-readable storage medium that stores instructions that when executed by a computer enable the computer to implement a method for a communication terminal, the method comprising:
receiving, from a core network node via a master radio access network (RAN) node providing a first radio access technology, a Non Access Stratum (NAS) message including first information indicating that use of dual connectivity using a second radio access technology is permitted;
receiving, from the master RAN node, second information including one or more frequency bands corresponding to the second radio access technology and used for dual connectivity with a serving cell associated with the master RAN node; and
indicating that the communication terminal has entered a coverage area associated with the second radio access technology provided by a secondary RAN node.