Patent ID: 8918065
Filing Date: 2014-12-23
Classification: H04B,H04L,H04W

Abstract:
1. A method for transmitting a pilot sequence from a transmitting end to a receiving end in a multi-antenna wireless communication system, the method comprising: setting a same pilot pattern to each of a plurality of transmitting antennas; allocating different pilot sequences to the set pilot patterns; and transmitting the allocated pilot sequences to the receiving end, wherein at least one of the transmitting antennas forms a valid communication link with one of the receiving antennas, wherein, when a number of data streams intended to be transmitted is less than or equal to a size of the pilot sequence, the different pilot sequences include pilot sequences cyclic shifted for basic pilot sequences, and wherein, when a number of data streams intended to be transmitted is greater than a size of the pilot sequences, the different pilot sequences include pilot sequences selected as many as the number of data streams among cyclic shifted for basic pilot sequences and pilot sequences permuted and cyclic shifted for the basic pilot sequences.