Method for feeding back ACK/NACK for downlink data transmission in radio communication system

摘要

Embodiments of the present invention provide a method for feeding back ACK/NACK for downlink data transmission in a radio communication system. The method is applied on a mobile terminal and includes the following steps: receiving downlink data, calculating, with respect to each Component Carrier (CC), a number of ACKs of ACK/NACK information of downlink data sub-frames of the CC, and feeding back numbers of ACKs of the ACK/NACK information of the downlink data sub-frames of CCs.

主权项

1. A method for transmitting ACK/NACK signal for data of two configured serving cells, the method comprising:
receiving a plurality of physical downlink shared channels (PDSCHs); mapping ACK/NACK bits; and transmitting the ACK/NACK signal based on the ACK/NACK bits on one physical uplink control channel (PUCCH) resource selected from a plurality of PUCCH resources configured for the two configured serving cells, wherein the plurality of PUCCH resources comprises PUCCH resources of indices 0 and 1 corresponding to downlink data on a first serving cell and PUCCH resources of indices 2 and 3 corresponding to downlink data on a secondary serving cell, and wherein the plurality of PUCCH resources are configured on a cell.