US 11,671,301 B2
Methods, apparatus, systems, architectures and interfaces for channel state information reference signal for next generation wireless communication systems
Erdem Bala, East Meadow, NY (US); Moon-il Lee, Melville, NY (US); Afshin Haghighat, Ile-Bizard (CA); Alphan Sahin, Westbury, NY (US); Rui Yang, Greenlawn, NY (US); and Frank La Sita, Setauket, NY (US)
Assigned to InterDigital Patent Holdings, Inc., Wilmington, DE (US)
Appl. No. 16/495,253
Filed by IDAC Holdings, Inc., Wilmington, DE (US)
PCT Filed Mar. 22, 2018, PCT No. PCT/US2018/023742
§ 371(c)(1), (2) Date Sep. 18, 2019,
PCT Pub. No. WO2018/175709, PCT Pub. Date Sep. 27, 2018.
Claims priority of provisional application 62/565,912, filed on Sep. 29, 2017.
Claims priority of provisional application 62/524,252, filed on Jun. 23, 2017.
Claims priority of provisional application 62/500,921, filed on May 3, 2017.
Claims priority of provisional application 62/475,221, filed on Mar. 22, 2017.
Prior Publication US 2020/0244503 A1, Jul. 30, 2020
Int. Cl. H04L 27/26 (2006.01); H04W 72/04 (2009.01); H04L 5/00 (2006.01); H04W 72/044 (2023.01)
CPC H04L 27/2636 (2013.01) [H04L 5/0007 (2013.01); H04L 5/0044 (2013.01); H04L 5/0048 (2013.01); H04L 27/2613 (2013.01); H04W 72/044 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method implemented in a wireless transmit/receive unit (WTRU) including a processor and a transceiver, the method comprising:
receiving information indicating one or more beam indices associated with a discrete Fourier transform (DFT)-spread-orthogonal frequency division multiplexing (DFT-s-OFDM) symbol including a reference signal (RS); and
transmitting the DFT-s-OFDM symbol, which includes a plurality of sub-symbols, using one or more transmit beams according to the information indicating the one or more beam indices, wherein a plurality of RS tones of the RS and null tones are included in the plurality of sub-symbols.