Patent ID: 8964660
Filing Date: 2015-02-24
Classification: H04L

Abstract:
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.