DIVERSITY SCHEME WHEN TRANSMITTING WITH SEVERAL ANTENNAE Russian patent published in 2011 - IPC H04B7/06 

FIELD: physics.

SUBSTANCE: method of transmitting data through several antennae involves modulating data into a plurality of modulated symbols, encoding each pair of modulated symbols from said plurality of symbols in accordance with the diversity scheme during transmission in order to obtain a plurality of 2×2 matrices, wherein each 2×2 matrix corresponds to each pair of modulated symbols, orthogonal expansion of the plurality of 2×2 matrices in order to form an output matrix, and transmitting symbols in the output matrix through a plurality of antennae using either a space-time diversity scheme during transmission or a space-frequency diversity scheme during transmission or a combination of the space-time and space-frequency diversity schemes during transmission. Density of resource elements used to transmit reference signals through the third antenna and the fourth antenna is less than density of resource elements used to transmit reference signals through the first antenna and the second antenna.

EFFECT: high efficiency when transmitting data through several antennae.

16 cl, 10 dwg