Method for transmitting control information and apparatus for same

摘要

The present invention relates to a wireless communication system. More particularly, the present invention relates to a method and an apparatus for transmitting uplink control information in the wireless communication system, which supports carrier aggregation and operates by a TDD, and comprises the steps of: receiving periodic information for reporting CSI; generating A/N information with respect to at least one cell from a plurality of cells to transmit from an uplink subframe n; and performing an action for transmitting the CSI information from the uplink subframe n according to the periodic information, wherein the CSI information and the A/N information are transmitted from the uplink subframe n through the same physical channel when a specific condition is satisfied, and only the A/N information is transmitted from the uplink subframe n when the specific condition is not satisfied, wherein the specific condition is Mp=0, and the A/N information comprising only A/N with respect to a first piece of specific downlink data that is received through a specific SCell, wherein the Mp expresses the number of downlink subframes that corresponds to the uplink subframe n with respect to a PCell.

主权项

1. A method for transmitting uplink control information in a wireless communication system supporting carrier aggregation and operating in Time Division Duplex (TDD), the method comprising:
receiving period information for Channel Status Information (CSI) reporting; generating acknowledgement/negative acknowledgement (A/N) information about one or more cells from among a plurality of cells for transmission in an uplink subframe n; and when the CSI is configured to be transmitted in the uplink subframe n based on the period information, the method further comprises:
transmitting the CSI and the A/N information through a same physical channel in the uplink subframe n when Mp is equal to zero and the A/N information only corresponds to first downlink data received through a secondary cell (SCell) among a plurality of SCells; andtransmitting only the A/N information in the uplink subframe n when Mp is not equal to zero or the A/N information does not only correspond to the first downlink data, wherein Mp represents a number of downlink subframes of a primary cell (PCell) in association with the uplink subframe n.