US 12,237,961 B2
Methods for flexible reference signal transmission with single carrier frequency domain multiple access (SC-FDMA) and OFDMA
Alphan Sahin, Westbury, NY (US); Rui Yang, Greenlawn, NY (US); and Erdem Bala, East Meadow, NY (US)
Assigned to InterDigital Patent Holdings, Inc., Wilmington, DE (US)
Filed by InterDigital Patent Holdings, Inc., Wilmington, DE (US)
Filed on Jul. 31, 2023, as Appl. No. 18/228,469.
Application 18/228,469 is a continuation of application No. 17/226,944, filed on Apr. 9, 2021, granted, now 11,765,012.
Application 17/226,944 is a continuation of application No. 16/324,408, abandoned, previously published as PCT/US2017/046195, filed on Aug. 10, 2017.
Claims priority of provisional application 62/479,792, filed on Mar. 31, 2017.
Claims priority of provisional application 62/373,126, filed on Aug. 10, 2016.
Prior Publication US 2024/0007338 A1, Jan. 4, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H04L 27/26 (2006.01); H04L 1/00 (2006.01); H04L 5/00 (2006.01); H04W 4/70 (2018.01); H04W 72/04 (2023.01)
CPC H04L 27/2636 (2013.01) [H04L 1/0069 (2013.01); H04L 1/0071 (2013.01); H04L 5/0051 (2013.01); H04W 4/70 (2018.02); H04L 5/0007 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A method comprising:
transmitting, by a base station, a dynamic scheduling information to a wireless transmit receive unite (WTRU), the dynamic scheduling information allocates a discrete Fourier transform spread-orthogonal frequency division multiplex (DFTS-OFDM) DFTS-OFDM symbol to be used for a reference signal symbol for a first physical uplink shared channel (PUSCH) transmission;
receiving, by the base station, the first PUSCH transmission using DFTS-OFDM having a reference signal at the allocated DFTS-OFDM symbol to use for the reference signal symbol;
transmitting, by the base station, second dynamic scheduling information to the WTRU allocating a DFTS-OFDM symbol to be used for a reference signal symbol for a second PUSCH transmission; and
receiving, by the base station, the second PUSCH transmission using DFTS-OFDM having a reference signal at the DFTS-OFDM symbol allocated by the second dynamic scheduling information, wherein the symbols and symbol times to be used for the reference signals differ between the dynamic scheduling information and the second dynamic scheduling information.