Design of pilots for a system of multiple input antennas and multiple uplink outputs of long-term evolution

摘要

Method, which comprises: multiplexing an in-band pilot and an out-of-band pilot to provide a pilot transmission in a closed-loop transmission of multiple antennas, and transmit the in-band pilot and out-of-band pilot in a link sub-frame ascending, wherein said in-band pilot is a specific beam pilot and said out-of-band pilot is a specific antenna pilot, where for specific beam pilots, the pilots are transmitted using the same beam as the data transmission , and for specific antenna pilots, orthogonal pilots are transmitted from multiple antennas.