Patent ID: 11902069
Assignee: NTT DOCOMO, INC.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 7:
8. A radio communication method for a terminal, comprising:
in response to configuration information of a demodulation reference signal (DMRS) having a greater number of configurable ports than a given number being received, applying a frequency domain orthogonal cover code (FD-OCC) having a sequence length of a number greater than two to a first DMRS, the first DMRS being mapped to first resource elements having mutually different frequencies, a number of the first resource elements being the number greater than two, and
in response to the configuration information being not received, applying an FD-OCC having a sequence length of two to a second DMRS, the second DMRS being mapped to second resource elements having mutually different frequencies, a number of the second resource elements being the number greater than two; and
transmitting the first DMRS or the second DMRS.