US 12,439,434 B2
Methods for contention-based sidelink transmission and reception and related wireless devices
Nafiseh Mazloum, Lund (SE); Torgny Palenius, Barsebäck (SE); Basuki Priyanto, Lund (SE); and Anders Berggren, Lund (SE)
Assigned to Sony Group Corporation, Tokyo (JP)
Appl. No. 18/271,413
Filed by Sony Group Corporation, Tokyo (JP)
PCT Filed Jan. 18, 2022, PCT No. PCT/EP2022/050954
§ 371(c)(1), (2) Date Jul. 7, 2023,
PCT Pub. No. WO2022/157132, PCT Pub. Date Jul. 28, 2022.
Claims priority of application No. 2150069-9 (SE), filed on Jan. 22, 2021.
Prior Publication US 2024/0306170 A1, Sep. 12, 2024
Int. Cl. H04W 72/02 (2009.01); H04W 4/46 (2018.01); H04W 52/02 (2009.01); H04W 72/04 (2023.01); H04W 72/40 (2023.01); H04W 92/18 (2009.01)
CPC H04W 72/40 (2023.01) [H04W 52/0235 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A method, performed by a wireless transmitter device, for contention-based sidelink transmission, the method comprising:
obtaining information defining a transmission resource pool and a resource reservation pool comprising one or more reservation resources associated with respective transmission resources in the transmission resource pool;
monitoring a reservation resource associated with a transmission resource selected by the wireless transmitter device for sidelink transmission, for a resource reservation signal transmitted by one or more other wireless transmitter devices attempting to reserve the same transmission resource; and
upon determining based on the monitoring that the transmission resource is available, transmitting, after the monitoring, to a wireless device, using the reservation resource, a resource reservation signal serving as a Wake-Up Signal (WUS) of the wireless device and indicating to other wireless devices that the wireless transmitter device intends to use the transmission resource;
wherein a timing of the transmission of the resource reservation signal is randomly selected by the wireless transmitter device; and wherein the modulation and coding complexity of the resource reservation signal is lower than a modulation and coding complexity of the sidelink transmission.