Patent ID: 11924695
Assignee: SONY GROUP CORPORATION
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A mobile telecommunications system method comprising:
measuring a property of a first received reference signal from a first base station operating in a first mobile telecommunications system;
measuring a property of a second received reference signal from a second base station or a user equipment operating in a second mobile telecommunications system;
switching from the first base station to the second base station as a serving base station based on the property of the first received reference signal and on the property of the second received reference signal;
switching from a first radio resource control function specified in the first mobile telecommunications system to a second radio resource control function specified in the second mobile telecommunications system; and
connecting to a third base station in the first mobile telecommunications system in accordance with a property of a third reference signal from the third base station or in accordance with an operation frequency of the second base station, wherein
the second radio resource control function
establishes a connection to the second base station,
measures the property of the third reference signal from the third base station operating in the first mobile telecommunications system, and
establishes the connection to the third base station in addition to the connection to the second base station.