US 12,088,524 B2
Reference signal communication in a wireless network
Benoit Pelletier, Roxboro (CA); Lujing Cai, Morganville, NJ (US); Diana Pani, Montreal (CA); Hong O. Zhang, Acton, MA (US); and Damian C. Hamme, Horsham, PA (US)
Assigned to InterDigital Patent Holdings, Inc., Wilmington, DE (US)
Filed by INTERDIGITIAL PATENT HOLDINGS, INC., Wilmington, DE (US)
Filed on Apr. 14, 2020, as Appl. No. 16/848,016.
Application 16/848,016 is a continuation of application No. 15/431,305, filed on Feb. 13, 2017, granted, now 10,623,160.
Application 15/431,305 is a continuation of application No. 13/572,040, filed on Aug. 10, 2012, abandoned.
Claims priority of provisional application 61/591,577, filed on Jan. 27, 2012.
Claims priority of provisional application 61/555,840, filed on Nov. 4, 2011.
Claims priority of provisional application 61/541,714, filed on Sep. 30, 2011.
Claims priority of provisional application 61/522,842, filed on Aug. 12, 2011.
Prior Publication US 2020/0244417 A1, Jul. 30, 2020
Int. Cl. H04L 5/00 (2006.01); H04W 72/23 (2023.01)
CPC H04L 5/0051 (2013.01) [H04L 5/0023 (2013.01); H04L 5/0035 (2013.01); H04L 5/0053 (2013.01); H04L 5/0091 (2013.01); H04W 72/23 (2023.01)] 18 Claims
OG exemplary drawing
 
1. A method comprising:
receiving, by a wireless transmit/receive unit (WTRU), a radio resource control (RRC) message indicating at least first pilot sequence information and second pilot sequence information, wherein the first and second pilot sequence information are configuration parameters used for deriving respective pilot sequences for receiving respective physical downlink shared channel transmissions;
receiving, by the WTRU, a physical downlink control channel transmission, wherein the physical downlink control channel transmission is received using at least a first pilot signal, the physical downlink control channel transmission comprises information indicating a number of codewords and a number of layers associated with a physical downlink shared channel transmission, and the physical downlink control channel transmission comprises an index indicating whether a pilot sequence for at least a second pilot signal associated with the physical downlink shared channel transmission is generated in accordance with the first pilot sequence information or the second pilot sequence information indicated by the RRC message; and
receiving, by the WTRU, the physical downlink shared channel transmission comprising the number of codewords and the number of layers using at least the first pilot sequence information or the second pilot sequence information as indicated in the physical downlink control channel transmission for the second pilot signal.