Method and device for transmitting uplink acknowledgement information in a wireless communication system supporting multiple carriers

摘要

The present invention relates to a wireless communication system, and more particularly, to a method and device for transmitting uplink acknowledgement information in a wireless communication system supporting multiple carriers. A method for a terminal for transmitting uplink acknowledgement information in a wireless communication system supporting multiple carriers according to one embodiment of the present invention includes: receiving downlink control information including downlink assignment index (DAI) information representing a combination of the number of downlink control channels (ntotal) and a priority value (nindex); and transmitting the uplink acknowledgement information on the basis of the number of downlink control channels (ntotal) and the priority value (nindex) that the DAI information represents. Here, the DAI information includes at least one DAI value, in which varying combinations of the number of downlink control channels (ntotal) and the priority value (nindex) are overlapped and mapped.

主权项

1. A method of transmitting uplink acknowledgement/negative-acknowledgement (UL ACK/NACK) information, which is transmitted by a user equipment in a multicarrier supportive wireless communication system, the method comprising:
receiving a downlink control information including a downlink assignment index (DAI) information indicating a combination of a total number (ntotal) of downlink control channels and an order value (nindex) of the downlink control channels, wherein the total number (ntotal) of the downlink control channels indicates total number of downlink control channels over all of carriers configured to the user equipment; and transmitting the UL ACK/NACK information based on the total number (ntotal) of the downlink control channels and the order value (nindex) of the downlink control channels indicated by the DAI information, wherein the DAI information indicates a DAI value among a plurality of DAI values, wherein the plurality of DAI values includes at least one DAI value such that different combinations of the total number (ntotal) of f the downlink control channels and the order value (nindex) of the downlink control channels are mapped duplicatively to a same DAI value, and wherein the DAI information has a value of DAI=ntotal(ntotal−1)/2+nindex−1 if ntotal