US 12,425,967 B2
Communications devices and methods
Martin Warwick Beale, Basingstoke (GB); and Kazuyuki Shimezawa, Basingstoke (GB)
Assigned to SONY GROUP CORPORATION, Tokyo (JP)
Appl. No. 17/795,549
Filed by Sony Group Corporation, Tokyo (JP)
PCT Filed Feb. 11, 2021, PCT No. PCT/EP2021/053291
§ 371(c)(1), (2) Date Jul. 27, 2022,
PCT Pub. No. WO2021/165128, PCT Pub. Date Aug. 26, 2021.
Claims priority of application No. 20157800 (EP), filed on Feb. 17, 2020.
Prior Publication US 2023/0046262 A1, Feb. 16, 2023
Int. Cl. H04W 52/02 (2009.01); H04L 5/00 (2006.01); H04W 72/20 (2023.01); H04W 76/28 (2018.01)
CPC H04W 52/0229 (2013.01) [H04L 5/0007 (2013.01); H04W 72/20 (2023.01); H04W 76/28 (2018.02)] 17 Claims
OG exemplary drawing
 
1. A receiving communications device comprising:
a transceiver configured to receive signals from and/or to transmit signals to one or more of a plurality of other communications devices within sidelink communications resources of a plurality of resource pool instances of a sidelink interface, each of the resource pool instances being arranged in time in accordance with a resource pool periodicity, each of the resource pool instances being formed of a plurality of time-divided slots and a plurality of frequency-divided regions, and
a controller configured in combination with the transceiver
to exchange control signalling with a first transmitting communications device of the plurality of other communications devices,
wherein the control signalling comprises an indication of a current power saving status of the receiving communications device,
the power saving status comprises a restricted resource pool monitoring operation of the receiving communications device, wherein, when operating in accordance with the restricted resource pool monitoring operation, the receiving communications device is configured to monitor for one or more current signals transmitted by the first transmitting communications device to the receiving communications device in a subset of the time-divided slots and the frequency-divided regions of a resource pool instance during at least a first of the resource pool instances, and
the subset is dependent on in which of the time-divided slots and the frequency-divided regions of the resource pool instance one or more previous signals were received by the receiving communications device from the first transmitting communications device during a second of the resource pool instances, wherein the second resource pool instance is a preceding resource pool instance to the first resource pool instance.