Patent ID: 8498666

Claim:
A method, comprising: enabling interoperability between different types of wireless communication systems operating with different types of air interfaces to provide at least downlink radio resource aggregation for a user equipment by: establishing a first connection between a medium access control protocol layer of a first wireless communication system and a physical layer of the first wireless communication system; establishing a second connection between the medium access control protocol layer of the first wireless communication system and a medium access control protocol layer of a second wireless communication system; using the first connection, performing wireless communications with the user equipment via one or more component carriers over a first air interface of the first wireless communication system; communicating data over the second connection, the data used in wireless communications via one or more component carriers over a second air interface of the second wireless communication system; and receiving at the first wireless communication system control information from the second wireless communication system, wherein the control information includes information of available resources for data transmission over the second air interface of the second wireless communication system.