COMMUNICATION DEVICE AND METHOD OF COMMUNICATION Russian patent published in 2019 - IPC H04J13/18 

FIELD: wireless communication equipment.

SUBSTANCE: invention relates to communication equipment and can be used in mobile communication systems. To achieve the technical result, the base station selects, among the plurality of code sequences orthogonal to each other, one code sequence, to which the uplink signal is multiplied, including the demodulation reference signal repeated in the plurality of subframes, and transmits, to a terminal for which a repeated uplink signal is configured to be transmitted, information indicating a selected code sequence using a field to indicate a cyclic shift and an orthogonal sequence used for the demodulation reference signal. Terminal receives information indicating one of plurality of code sequences orthogonal to each other using a field for specifying a cyclic shift and an orthogonal sequence used for the demodulation reference signal, and multiplies an uplink signal including a demodulation reference signal, repeated in a plurality of subframes, on a code sequence indicated by the information.

EFFECT: high reliability of communication.

20 cl, 16 dwg