US 11,785,425 B2
Selective retransmission of groupcast data
Karthikeyan Ganesan, Kronberg im Taunus (DE); Prateek Basu Mallick, Dreieich (DE); Joachim Loehr, Wiesbaden (DE); Alexander Johann Maria Golitschek Edler von Elbwart, Darmstadt (DE); Ravi Kuchibhotla, Chicago, IL (US); Vijay Nangia, Woodridge, IL (US); and Robert T. Love, Barrington, IL (US)
Assigned to Lenovo (Singapore) Pte. Ltd., New Tech Park (SG)
Filed by Lenovo (Singapore) PTE. LTD., New Tech Park (SG)
Filed on Sep. 19, 2022, as Appl. No. 17/948,078.
Application 17/948,078 is a continuation of application No. 16/786,497, filed on Feb. 10, 2020, granted, now 11,470,452.
Claims priority of provisional application 62/803,363, filed on Feb. 8, 2019.
Prior Publication US 2023/0017340 A1, Jan. 19, 2023
Int. Cl. H04W 4/06 (2009.01); H04B 7/06 (2006.01); H04L 1/1812 (2023.01); H04L 5/00 (2006.01); H04W 16/28 (2009.01); H04W 92/18 (2009.01)
CPC H04W 4/06 (2013.01) [H04B 7/0617 (2013.01); H04L 1/1816 (2013.01); H04L 5/0055 (2013.01); H04W 16/28 (2013.01); H04W 92/18 (2013.01)] 20 Claims
OG exemplary drawing
 
13. A method of a transmitting device, the method comprising:
transmitting groupcast data via sidelink communication to a set of user equipments (“UEs”) using a first cast-type;
receiving negative acknowledgement feedback via sidelink communication from at least one UE of the set of UEs, the negative acknowledgement feedback comprising sidelink Channel State Information (“S-CSI”);
determining a retransmission mode based on the S-CSI, wherein the retransmission mode indicates a second cast-type that is different from the first cast-type; and
performing selectively beamformed retransmission of the groupcast data according to the determined retransmission mode.