EXTENSION OF PHYSICAL DOWNLINK CONTROL SIGNALING IN A COMMUNICATION SYSTEM

摘要

Provided are a method and an apparatus, wherein a user equipment (UE) receives a physical downlink control channel (PDCCH) of a first type including control channel elements (CCEs) of a first type using a first set of resources; receives a PDCCH of a second type including CCEs of a second type using a second set of resources; and determines a resource for transmitting an acknowledgement signal in response to detecting the PDCCH of the first type or in response to detecting the PDCCH of the second type.