Patent ID: 8923201

Claim:
A method for a user equipment (UE) to receive a physical downlink control channel (PDCCH) and an enhanced physical downlink control channel (EPDCCH), the method comprising: receiving higher layer signaling; determining the beginning OFDM symbol for the EPDCCH using a physical control format indicator channel (PCFICH), if the UE is not configured by the higher layer signaling; determining the beginning OFDM symbol for the EPDCCH using information informed by the higher layer signaling, if the UE is configured by the higher layer signaling; receiving the PDCCH using a first number of control channel elements (CCEs); and receiving the EPDCCH, based on the determined beginning OFDM symbol for the EPDCCH, using a second number of enhanced CCEs (ECCEs), wherein a maximum value of the second number is larger than a maximum value of the first number, wherein a set of the first number for the CCEs is {1, 2, 4, 8}, and a set of the second number for the ECCEs is {1, 2, 4, 8, 16}.