US 12,323,282 B2
Reference signal design for a system operating above 52.6 gigahertz (GHz) carrier frequency
Gang Xiong, Portland, OR (US); Yushu Zhang, Beijing (CN); Daewon Lee, Portland, OR (US); Alexei Davydov, Nizhny Novgorod (RU); Seunghee Han, San Jose, CA (US); and Jie Zhu, San Jose, CA (US)
Assigned to APPLE INC., Cupertino, CA (US)
Appl. No. 17/421,984
Filed by Apple Inc., Cupertino, CA (US)
PCT Filed Jan. 9, 2020, PCT No. PCT/US2020/012940
§ 371(c)(1), (2) Date Jul. 9, 2021,
PCT Pub. No. WO2020/146638, PCT Pub. Date Jul. 16, 2020.
Claims priority of provisional application 62/790,978, filed on Jan. 10, 2019.
Prior Publication US 2022/0116252 A1, Apr. 14, 2022
Int. Cl. H04L 27/26 (2006.01); H04L 5/00 (2006.01); H04J 13/00 (2011.01)
CPC H04L 27/261 (2013.01) [H04L 5/0051 (2013.01); H04L 27/2607 (2013.01); H04J 13/0062 (2013.01); H04L 5/0007 (2013.01); H04L 27/2636 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for use in a wireless communication system operating above 52.6 gigahertz (GHz), the method comprising:
defining a plurality of Demodulation Reference Signal (DM-RS) antenna ports (APs);
generating a DM-RS sequence associated with a shared channel based on an energy per symbol ratio between a physical downlink shared channel (PDSCH) and a DMRS and based on a Zadoff-Chu sequence as a function of a block index of a block within one slot, wherein the DM-RS sequence is sub-block based in time, wherein the energy per symbol ratio corresponds to a number of comb offsets; and
transmitting the DM-RS sequence using one or more of the plurality of DM-RS APs.