US 12,413,345 B2
V2X HARQ process management
Robin Thomas, Berlin (DE); Thomas Fehrenbach, Berlin (DE); Baris Göktepe, Berlin (DE); Cornelius Hellge, Berlin (DE); Thomas Wirth, Berlin (DE); Thomas Schierl, Berlin (DE); Sarun Selvanesan, Berlin (DE); and Roya Ebrahim Rezagah, Berlin (DE)
Assigned to Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., Munich (DE)
Filed by Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., Munich (DE)
Filed on Apr. 2, 2024, as Appl. No. 18/624,122.
Application 18/624,122 is a continuation of application No. 17/402,178, filed on Aug. 13, 2021, granted, now 11,979,238.
Application 17/402,178 is a continuation of application No. PCT/EP2020/053892, filed on Feb. 14, 2020.
Claims priority of application No. 19157565 (EP), filed on Feb. 15, 2019.
Prior Publication US 2024/0243852 A1, Jul. 18, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H04L 1/18 (2023.01); H04L 1/1812 (2023.01); H04L 1/1829 (2023.01); H04W 72/04 (2023.01); H04W 72/20 (2023.01); H04W 4/40 (2018.01)
CPC H04L 1/1845 (2013.01) [H04L 1/1812 (2013.01); H04L 1/1864 (2013.01); H04W 72/20 (2023.01); H04W 4/40 (2018.02)] 15 Claims
OG exemplary drawing
 
1. A user device, UE, for a wireless communication system, the wireless communication system including a plurality of user devices, UEs,
wherein the UE is configured to
communicate with one or more transmitting UEs using a sidelink,
support a certain number of HARQ processes, and
buffer one or more transmissions for each HARQ process,
wherein, during a unicast communication with a transmitting UE using the sidelink, the UE is configured to
receive from the transmitting UE a transmission during a transmission time interval, the transmission associated with a HARQ process ID for at least one of the HARQ processes,
buffer the received transmission for the at least one HARQ process, and
combine buffered transmissions prior to decoding, and
wherein, in case a successfully identified transmission, which is a transmission for which the UE successfully decoded control data, is not buffered, the UE is configured to indicate to the transmitting UE that the successfully identified transmission is not buffered at the UE.