US 12,457,521 B2
Network node, device and methods in a telecommunication network
Erik Stare, Sollentuna (SE); Martin Van Der Zee, Malmö (SE); Dung Pham Van, Upplands Väsby (SE); and Joakim Åkesson, Hovås (SE)
Assigned to Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
Appl. No. 18/029,263
Filed by Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
PCT Filed Oct. 22, 2021, PCT No. PCT/EP2021/079408
§ 371(c)(1), (2) Date Mar. 29, 2023,
PCT Pub. No. WO2022/084537, PCT Pub. Date Apr. 28, 2022.
Claims priority of application No. 20203481 (EP), filed on Oct. 23, 2020.
Prior Publication US 2023/0370893 A1, Nov. 16, 2023
Int. Cl. H04W 28/02 (2009.01); H04W 28/08 (2023.01); H04W 76/27 (2018.01); H04W 76/34 (2018.01)
CPC H04W 28/0289 (2013.01) [H04W 28/0284 (2013.01); H04W 28/0831 (2020.05); H04W 76/27 (2018.02); H04W 76/34 (2018.02)] 26 Claims
OG exemplary drawing
 
1. A method performed by a network node in a telecommunication network providing a multicast transmission to a group of devices residing in a cell of the telecommunication network, the method comprising:
monitoring a congestion level for communication;
if the congestion level reaches a first threshold, ordering for at least one device in a radio resource control, RRC, connected mode to be released from the RRC connected mode to an RRC idle mode or an RRC inactive mode, thereby disabling a capability of the at least one device to provide one or more re-transmission requests while keeping an ability of the at least one device to further receive the multicast transmission; and
when the congestion level reaches a second threshold, lower than said first threshold, ordering to return said at least one device from the RRC idle mode, or the RRC inactive mode, back to the RRC connected mode.