Patent ID: 9479309
Filing Date: 2016-10-25
CPC Classification: H04L

Claim Text:
1. A method for receiving a physical downlink control channel (PDCCH) signal at a user equipment (UE) in a wireless communication system, the method comprising: Receiving, by the UE, a subframe including a plurality of search spaces in a carrier, wherein each search space is for a respective one of a number of control channel element (CCE) aggregation levels; Monitoring, by the UE, PDCCH candidates in a search space of a respective CCE aggregation level to receive the PDCCH signal; and Performing, by the UE, a procedure for receiving or transmitting a physical shared channel signal based on successful reception of the PDCCH signal, wherein a CCE position of the search space of the respective CCE aggregation level in the carrier is calculated based on a value of a carrier indicator field (CIF).