Patent ID: 8817646
Filing Date: 2014-08-26
Classification: H04L,H04W

Abstract:
1. A method of obtaining system information by a user equipment in a wireless communication system supporting multi-carriers, the method comprising: receiving a message including information on a system information modification (systemInfoModification) of a plurality of component carriers from a base station; determining whether the system information of each component carrier configured for the user equipment among the plurality of component carriers is to be modified, based on the information on the system information modification of the plurality of component carriers; and obtaining the modified system information of at least one component carrier configured for the user equipment, if the system information of the at least one component carrier configured for the user equipment is determined to be modified, wherein the information on the system information modification of the plurality of component carriers is the information indicating whether the system information for each of the plurality of component carriers is to be modified, wherein the message is received only on one predetermined downlink component carrier among the plurality of component carriers, and the modified system information of one of the at least one component carrier is received by the user equipment on the one of the at least one component carrier, wherein the at least one component carrier includes a component carrier other than the one predetermined component carrier, and wherein receiving the message comprises monitoring a physical downlink control channel (PDCCH), and a cyclic redundancy check (CRC) code of PDCCH is masked with Paging-Radio Network Temporary Identifier (P-RNTI).