Patent ID: 8626218
Filing Date: 2014-01-07
Classification: H04L,H04W,Y02D

Abstract:
1. A method for determining physical downlink control channel (PDCCH) assignments in a long term evolution (LTE) communication system, comprising: monitoring by a user equipment (UE) a set of PDCCH candidates, the set of PDCCH candidates to monitor defined in a search space S wherein if the UE is configured with a carrier indicator field (CIF), the UE monitors one or more UE-specific search spaces at each of aggregation levels 1, 2, 4, 8, and wherein if the UE is not configured with the CIF, the UE monitors a common search space; wherein if the UE is configured to monitor PDCCH candidates with a given downlink control information (DCI) format size with the CIF and if the PDCCH candidates may have one or more possible values of CIF for a given DCI format size, the UE monitors PDCCH candidates with the given DCI format size in UE-specific search spaces corresponding to possible values of the CIF for the given DCI format size; and wherein the given DCI format that the UE is configured to monitor uses a configured transmission mode.