US 12,471,179 B2
Methods for resource reservation of a contention-based sidelink transmission and related wireless devices
Torgny Palenius, Barsebäck (SE); Nafiseh Mazloum, Lund (SE); Anders Berggren, Lund (SE); and Basuki Priyanto, Lund (SE)
Assigned to Sony Group Corporation, Tokyo (JP)
Appl. No. 18/270,516
Filed by Sony Group Corporation, Tokyo (JP)
PCT Filed Jan. 12, 2022, PCT No. PCT/EP2022/050531
§ 371(c)(1), (2) Date Jun. 30, 2023,
PCT Pub. No. WO2022/152744, PCT Pub. Date Jul. 21, 2022.
Claims priority of application No. 2150026-9 (SE), filed on Jan. 14, 2021.
Prior Publication US 2024/0057211 A1, Feb. 15, 2024
Int. Cl. H04W 76/28 (2018.01); H04W 72/02 (2009.01); H04W 72/25 (2023.01)
CPC H04W 76/28 (2018.02) [H04W 72/02 (2013.01); H04W 72/25 (2023.01)] 13 Claims
OG exemplary drawing
 
1. A method, performed by a wireless device, for resource reservation of a contention-based sidelink transmission according to a Discontinuous Reception (DRX) cycle, the method comprising:
obtaining information defining a transmission resource pool aligned with DRX active time of a receiving wireless device and a resource reservation pool arranged prior to the DRX active time comprising one or more resource reservation blocks associated with respective transmission resources in the transmission resource pool, wherein the one or more resource reservation blocks comprise a plurality of occasions;
transmitting a resource reservation signal using a first occasion of a resource reservation block associated with a transmission resource selected by the wireless device for sidelink transmission;
monitoring one or more other occasions of the resource reservation block for resource reservation signals transmitted by other wireless devices aiming at reserving the same transmission resource, wherein the one or more other occasions are different from the first occasion; and
controlling, based on the monitoring, the sidelink transmission using the transmission resource;
wherein the transmitting is performed prior to the sidelink transmission.