Patent ID: 8787224

Claim:
A method for feeding back an acknowledgement/negative-acknowledgement (ACK/NACK) on a physical uplink control channel, comprising: sending, by a user equipment, an ACK/NACK by adopting a manner based on a channel selection or based on a Discrete Fourier Transform spread Orthogonal Frequency Division Multiplexing (DFT-s-OFDM) in a multiplexing mode according to a feedback manner in the multiplexing mode configured by a base station; configuring, by the base station, the feedback manner in the multiplexing mode for the user equipment, and indicating the user equipment, through a higher layer signaling, to send the ACK/NACK by adopting the manner based on the channel selection or based on the DFT-s-OFDM in the multiplexing mode, wherein step of configuring comprises: if the user equipment is only able to support to feed back the ACK/NACK in the manner based on the channel selection, then the base station indicating the user equipment to send the ACK/NACK by adopting the manner based on the channel selection in the multiplexing mode; if the user equipment is only able to support to feed back the ACK/NACK in the manner based on the DFT-s-OFDM, then the base station indicating the user equipment to send the ACK/NACK by adopting the manner based on the DFT-s-OFDM in the multiplexing mode; if the user equipment is able to support to feed back the ACK/NACK not only in the manner based on the channel selection but also in the manner based on the DFT-s-OFDM, then the base station indicating the user equipment to send the ACK/NACK by adopting the manner based on the channel selection or the manner based on the DFT-s-OFDM.