Uplink transmit diversity schemes with 4 antenna ports

摘要

A system and method for uplink transmit diversity. The system and method include a pairing device configured to pair a number of symbol sets to form paired sets. The paired sets are mapped onto a number of layers. The layers are precoded into at least two pairs of two precoded streams and the precoded streams are mapped onto at least two antenna ports. Further, a number demodulation reference signals are transmitted via a portion of the resource elements for at least two antenna ports such that, a first number of demodulation reference signals are transmitted via a portion of the resource elements of a first pair of antenna ports and a second number of demodulation reference signals are transmitted via a portion of the resource elements of the second pair of antenna ports.