US 12,483,857 B2
Proximity awareness in sidelink communications
Elke Roth-Mandutz, Erlangen (DE); Khaled Shawky Hassan Hussein, Erlangen (DE); Shubhangi Bhadauria, Erlangen (DE); and Martin Leyh, Erlangen (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. 26, 2021, as Appl. No. 17/240,722.
Application 17/240,722 is a continuation of application No. PCT/EP2019/072399, filed on Aug. 21, 2019.
Claims priority of application No. 18203882 (EP), filed on Oct. 31, 2018.
Prior Publication US 2021/0250118 A1, Aug. 12, 2021
Int. Cl. H04W 4/02 (2018.01); H04L 1/00 (2006.01); H04L 67/12 (2022.01); H04W 4/46 (2018.01); H04W 72/56 (2023.01); H04W 76/14 (2018.01); G08G 1/00 (2006.01)
CPC H04W 4/023 (2013.01) [H04L 1/0017 (2013.01); H04W 72/56 (2023.01); H04W 76/14 (2018.02); G08G 1/22 (2013.01); H04L 67/12 (2013.01); H04W 4/46 (2018.02)] 8 Claims
OG exemplary drawing
 
1. A user device, UE, for a wireless communication system, wherein
the UE is configured to be connected to at least one further UE via a sidelink for a sidelink communication with the further UE,
for transmitting to the further UE via the sidelink, the UE is configured to
acquire distance information representing a certain communication range or a certain distance around the UE, and
initiate a feedback mechanism for the sidelink communication when the further UE is at or within the certain communication range or the certain distance, and
not initiate the feedback mechanism for the sidelink communication when the further UE is outside the certain communication range or the certain distance,
the UE determines whether the further UE is within the minimum required communication range,
when determining the further UE to be within the minimum required communication range, the UE explicitly signals to the further UE to activate the feedback mechanism of the further UE,
the feedback mechanism of the further UE is activated in the further UE in response to the UE signaling, and
the further UE sends the feedback in response to a sidelink transmission by the UE.