Patent ID: 8553627
Filing Date: 2013-10-08
Classification: H04B,H04L,H04W

Abstract:
1. A method for transmitting uplink control information (UCI) using a physical uplink control channel (PUCCH) transmit diversity scheme, comprising: coding UCI with a Forward Error Correction code to obtain a coded UCI; mapping coded UCI to quadrature phase shift keying (QPSK) symbols to obtain a mapped coded UCI; selecting a phase shift pattern, wherein the phase shift pattern comprises multiple phase shifts for a plurality of symbols based on an acknowledge/negative-acknowledge (ACK/NACK); applying a phase shift from the phase shift pattern to the mapped coded UCI to obtain a phase shifted mapped coded UCI; sending the mapped coded UCI using a PUCCH resource on a first antenna; and sending the phase shifted mapped coded UCI using a PUCCH resource on a second antenna.