US 11,838,877 B2
Transmitter and transmission method
Shotaro Maki, Kanagawa (JP); Takashi Iwai, Ishikawa (JP); and Hidetoshi Suzuki, Kanagawa (JP)
Assigned to Panasonic Intellectual Property Corporation of America, Torrance, CA (US)
Filed by Panasonic Intellectual Property Corporation of America, Torrance, CA (US)
Filed on Dec. 2, 2022, as Appl. No. 18/061,274.
Application 18/061,274 is a continuation of application No. 16/965,769, granted, now 11,558,829, previously published as PCT/JP2019/000365, filed on Jan. 9, 2019.
Claims priority of application No. 2018-025861 (JP), filed on Feb. 16, 2018.
Prior Publication US 2023/0089222 A1, Mar. 23, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H04W 52/36 (2009.01); H04L 1/00 (2006.01); H04L 5/00 (2006.01); H04L 27/26 (2006.01)
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
OG exemplary drawing
 
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.