Patent ID: 8902935
Filing Date: 2014-12-02
Classification: H04J,H04L,H04W

Abstract:
1. A method for acquiring synchronization in a multiple carrier system, the method performed by one user equipment (UE) and comprising: acquiring, by the UE capable of aggregating a plurality of downlink component carriers and aggregating a plurality of uplink component carriers up to 100 MHz, synchronization for a first downlink component carrier among the plurality of downlink component carriers by detecting a primary synchronization signal (PSS) and a secondary synchronization signal (SSS) in the first downlink component carrier, wherein each of the plurality of downlink component carriers provides a physical Downlink Control Channel (PDCCH) in which downlink control information (DCI) is conveyed; receiving, by the UE, detection information for detecting a reference signal in a second downlink component carrier among the plurality of downlink component carriers through the first downlink component carrier; attempting, by the UE, to detect a PSS and a SSS in the second downlink component carrier; and when the detection of the PSS and the SSS in the second downlink component carrier fails, acquiring, by the UE, synchronization for the second downlink component carrier, in which the PSS and the SSS are not transmitted, by detecting the reference signal in the second downlink component carrier based on the detection information for detecting the reference signal in the second downlink component carrier.