METHOD FOR TRANSMITTING AND RECEIVING CONTROL INFORMATION AND APPARATUS FOR THE SAME

摘要

The present invention relates to a wireless communication and, more specifically, to a method for transmitting an HARQ) response by a UE in a wireless communication system, and an apparatus for the same. The method includes receiving an E-PDCCH signal on at least one of a plurality of enhanced physical downlink control channel (E-PDCCH) sets, each E-PDCCH set including a plurality of resources units indexed per E-PDCCH set; and transmitting the HARQ response using a physical uplink control channel (PUCCH) resource determined using the index of the first resource unit among one or more resource units carrying the E-PDCCH signal, wherein the index of the first resource unit is determined on the basis of the E-PDCCH set having the lowest index among the plurality of E-PDCCH sets when specific conditions are satisfied.

主权项

1. A method for transmitting a hybrid automatic repeat request (HARQ) response by a user equipment (UE) in a wireless communication system, the method comprising:
receiving, by the UE, a first enhanced physical downlink control channel (E-PDCCH) candidate corresponding to one E-PDDCH set of two E-PDCCH sets configured for the UE, each E-PDCCH set including a plurality of resource units and having a unique E-PDCCH set index; and transmitting, by the UE, the HARQ response using a physical uplink control channel (PUCCH) resource determined by the UE based on a specific resource unit index of the first E-PDCCH candidate, wherein the specific resource unit index is a resource unit index determined based on one of the two E-PDCCH sets having a lowest E-PDCCH set index when each of condition i), condition ii) and condition iii) described below is satisfied:
condition i)—the two E-PDCCH sets are scrambled with a same sequence,condition ii)—the UE is configured to monitor a second E-PDCCH candidate with a same attribute as the first E-PDCCH candidate and corresponding to another E-PDCCH set of the two E-PDCCH sets,condition iii)—the first and second E-PDCCH candidates are mapped to a same physical resource.