CPC H04W 52/367 (2013.01) [H04L 1/0003 (2013.01); H04L 5/0051 (2013.01); H04L 27/2675 (2013.01); H04W 52/365 (2013.01)] | 14 Claims |
1. A transmission apparatus, comprising:
a receiver, which, in operation, receives, from a base station, an indication;
circuitry, which, in operation, adjusts, based on the indication, a transmission power of a phase tracking reference signal (PT-RS) using a power ratio between the PT-RS and a data signal, wherein the power ratio between the PT-RS and the data signal for a defined number of layers is changeable in case of a non-coherent transmission and in case of a partial coherent transmission; and
a transmitter, which, in operation, transmits the PT-RS at the adjusted transmission power.
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