Patent ID: 9572148
Date: 2017-02-14
CPC Classifications: H04L,H04W

Claim:
1. A method for an evolved Node B (eNB) transmitting downlink control information in a wireless communication system, the method comprising: determining a localized enhanced physical downlink control channel (E-PDCCH) allocatable resource region; allocating a first E-PDCCH of a first user equipment (UE) to a first resource region included in the determined localized E-PDCCH allocatable resource region; and transmitting the downlink control information to the first UE on the first E-PDCCH, wherein the determined localized E-PDCCH allocatable resource region is set as a group of partial resource regions in corresponding partitions when a downlink system bandwidth includes a plurality of partitions, wherein the downlink control information includes information indicating that a physical downlink shared channel (PDSCH) of the first UE is allocated to a second resource region in the determined localized E-PDCCH allocatable resource region and information indicating whether a second E-PDCCH of a second UE instead of the PDSCH of the first UE is present in the second resource region, wherein an aggregation level for the first E-PDCCH is set higher than 4 when the first E-PDCCH is allocated according to distributed allocation, and wherein the aggregation level for the first E-PDCCH is set equal to or lower than 4 when the first E-PDCCH is allocated according to localized allocation.