Patent ID: 11956665
Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 12:
13. A method of flow control with respect to a traffic flow going over a multi-hop path comprising a donor Integrated Access and wireless access Backhaul (IAB) node, a final IAB node having a wireless connection to a User Equipment (UE) associated with the traffic flow, and one or more intermediate IAB nodes between the final and donor IAB nodes, the method comprising:
at each intermediate IAB node, monitoring for congestion affecting transmission of data packets of the traffic flow to a next hop of the multi-hop path and, responsive to detecting such congestion, applying node-specific congestion marking to one or more affected data packets of the traffic flow;
at the final IAB node, transmitting a flow control report towards the donor IAB node, the flow control report indicating whether or which ones of the one or more intermediate IAB nodes are experiencing congestion; and
at the donor IAB node, performing flow control for the traffic flow, based on the flow control report.