Patent ID: 7747262

Claim:
A method of receiving, at a UE (User Equipment), paging for a first service while a second service, different from the first service, is in progress in a mobile communication system, wherein the first service is provided through a primary carrier and the second service is provided through a secondary carrier, the secondary carrier having a different frequency from the primary carrier, the method comprising: receiving, by the UE, paging indication information for the first service through the secondary carrier while receiving the second service through the secondary carrier; receiving, by the UE, paging information for the first service through the secondary carrier in response to the received paging indication information; and receiving, by the UE, the first service through the primary carrier by switching a reception frequency of the UE from the secondary carrier to the primary carrier in response to the paging information received through the secondary carrier, wherein the UE reads the primary carrier based on the paging information received through the secondary carrier.