US 12,273,766 B2
Method and apparatus for congestion control in a telecommunications network
Khaled Hassan, Erlangen (DE); Shubhangi Bhadauria, Erlangen (DE); Elke Roth-Mandutz, Erlangen (DE); and Martin Leyh, Erlangen (DE)
Assigned to Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., (DE)
Appl. No. 17/299,566
Filed by Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., Munich (DE)
PCT Filed Dec. 10, 2019, PCT No. PCT/EP2019/084379
§ 371(c)(1), (2) Date Jun. 3, 2021,
PCT Pub. No. WO2020/126657, PCT Pub. Date Jun. 25, 2020.
Claims priority of application No. 18213058 (EP), filed on Dec. 17, 2018.
Prior Publication US 2022/0060929 A1, Feb. 24, 2022
Int. Cl. H04W 28/02 (2009.01); H04W 72/542 (2023.01)
CPC H04W 28/0268 (2013.01) [H04W 28/0231 (2013.01); H04W 72/542 (2023.01)] 13 Claims
OG exemplary drawing
 
1. A method performed by a User Equipment (UE) for congestion control in a wireless telecommunications network, the method comprising:
performing Channel-Busy-Ratio and/or Channel occupancy Ratio (CBR/CR) measurements on one or more resource pools to generate CBR/CR values, wherein the measurements are performed over a sensing period which is either pre-configured by a network node and/or the UE, the one or more resource pools being configured for one bandwidth part or one component carrier for sidelink transmissions to one or more UEs;
selecting at least one resource within a resource pool among the one or more resource pools based on a CBR/CR value and Quality of Service (QOS) requirements of at least one data packet for transmitting the at least one data packet, wherein the at least one resource is selected among candidate resources within an adaptive resource selection window, and wherein the adaptive resource selection window is a time period with a start time and an end time, and the end time is adapted based on the QoS requirements of the at least one data packet;
if the at least one data packet has a high priority in respect to QoS, selecting resources within a resource pool among the one or more resource pools having a CBR and/or CR value below a certain threshold; and
transmitting the at least one data packet on the selected at least one resource, based on the QoS requirements of the at least one data packet.