Method and apparatus for transmitting ACK/NACK

摘要

The present invention is directed to a wireless communication system. Particularly, the present invention is directed to a method and an apparatus of transmitting ACK/NACK (acknowledgement/negative-ACK) signal at a user equipment in a wireless communication system, the method comprising: receiving a plurality of data blocks from a transmitting end; reserving a plurality of PUCCH (physical uplink control channel) resources for transmission of the ACK/NACK signal; mapping ACK/NACK hypothesis for the plurality of the data blocks to a PUCCH resource group including at least two reserved PUCCH resources; and transmitting at least two modulation symbols corresponding to the ACK/NACK hypothesis to the transmitting end via the PUCCH resource group.

主权项

1. A method of transmitting acknowledgement (ACK)/negative acknowledgement (NACK) signals at a user equipment (UE) in a wireless communication system, the method comprising:
receiving, by the UE, a plurality of data signals from a transmitting side, each data signal among the plurality of data signals requiring an ACK/NACK signal in response; determining, by the UE, a plurality of physical uplink control channel (PUCCH) resources for transmission of three or more ACK/NACK signals corresponding to the plurality of data signals, wherein the plurality of PUCCH resources are divided into a plurality of PUCCH resource groups, determining, by the UE, a PUCCH resource group among the plurality of PUCCH resource groups; obtaining, by the UE, at least two modulation symbols based on at least one modulation scheme including a binary phase shift keying (BPSK) and a quadrature phase shift keying (QPSK); and transmitting, by the UE, the obtained at least two modulation symbols to the transmitting side via at least two PUCCH resources within the determined PUCCH resource group, wherein the three or more ACK/NACK signals are multiplexed into the at least two PUCCH resources according to a mapping relation between the obtained at least two modulation symbols and the at least two PUCCH resources of the determined PUCCH resource group.