US 11,889,501 B2
System and method for DL transmission with low peak-to-average-power (PAPR)
Alexei Davydov, Cupertino, CA (US); Gang Xiong, Cupertino, CA (US); Jie Zhu, Cupertino, CA (US); Yushu Zhang, Cupertino, CA (US); Guotong Wang, Cupertino, CA (US); Daewon Lee, Cupertino, CA (US); Gregory Morozov, Cupertino, CA (US); and Sameer Pawar, Cupertino, CA (US)
Assigned to APPLE INC., Cupertino, CA (US)
Appl. No. 17/416,743
Filed by Apple Inc., Cupertino, CA (US)
PCT Filed Jan. 3, 2020, PCT No. PCT/US2020/012259
§ 371(c)(1), (2) Date Jun. 21, 2021,
PCT Pub. No. WO2020/142741, PCT Pub. Date Jul. 9, 2020.
Claims priority of provisional application 62/788,585, filed on Jan. 4, 2019.
Prior Publication US 2022/0078825 A1, Mar. 10, 2022
Int. Cl. H04W 72/1273 (2023.01); H04W 72/0446 (2023.01); H04W 72/0453 (2023.01); H04W 72/23 (2023.01)
CPC H04W 72/1273 (2013.01) [H04W 72/0446 (2013.01); H04W 72/0453 (2013.01); H04W 72/23 (2023.01)] 20 Claims
OG exemplary drawing
 
9. A method of wireless communication in a frequency band, the method comprising:
precoding, in a frequency domain, a plurality of physical channel signals according to predetermined codes with a code length;
multiplexing the precoded plurality of physical channel signals;
mapping the multiplexed precoded plurality of physical channel signals to subcarriers in the frequency band;
generating a time domain waveform based on the mapped multiplexed precoded plurality of physical channel signals; and
transmitting the time domain waveform to a user equipment (UE),
wherein the code length is selected based on a length of an entire signal of the multiplexed plurality of physical channel signals.