Patent ID: 8615230

Claim:
A method of reporting radio access technology, hereinafter called RAT, capability for a mobile device of a wireless communication system, the method comprising: including capability information in a capability reporting message, wherein the capability information is only associated with a first RAT; and transmitting the capability reporting message to a network of a second RAT via the second RAT, comprising: encapsulating the capability reporting message in a radio resource control message of a capability enquiring procedure; and transmitting the radio resource control message to the network; wherein the first RAT is a long term evolution (LTE) RAT, and the second RAT is a non-LTE RAT; wherein the radio resource control message is a UE CAPABILITY INFORMATION message of a RAT other than the LTE RAT or a RRC CONNECTION SETUP COMPLETE message of a RAT other than the LTE RAT; wherein the capability reporting message is a UE evolved universal terrestrial radio access (E-UTRA) capability information element of the LTE RAT.