US 12,219,502 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 Oct. 24, 2023, as Appl. No. 18/493,467.
Application 18/493,467 is a continuation of application No. 18/061,274, filed on Dec. 2, 2022, granted, now 11,838,877.
Application 18/061,274 is a continuation of application No. 16/965,769, granted, now 11,558,829, issued on Jan. 17, 2023, 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 2024/0064657 A1, Feb. 22, 2024
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 base station, comprising:
a transmitter, which, in operation, transmits, to a mobile station, an indication related to a phase tracking reference signal (PT-RS); and
a receiver, which, in operation, receives, from the mobile station, the PT-RS transmitted with a transmission power, which is adjusted, based on the indication, 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.