Method and apparatus related to wire line backhaul

摘要

Presented are methods and arrangements for adapting the load in a cell based on information on upcoming events related to a backhaul link. The upcoming events related to the backhaul link may be delayed in order to give enough time for an RBS to complete activities related to the load adaptation. Thus, UEs may be handed over to neighboring cells proactively, before the cell becomes overloaded due to events related to the backhaul link.

主权项

1. A method performed by a Radio Base Station (RBS) being associated with communication over a wire line backhaul link, and further serving a number of User Equipment's (UEs), the method comprising:
collecting information about the backhaul link from a backhaul communication entity; determining, based on said information, whether a procedure is about to be performed which entails that the capacity of the backhaul link will be reduced; estimating the capacity of the backhaul link after the forthcoming capacity reduction; determining whether a traffic load of the RBS, said load being associated with the serving of UEs, exceeds the estimated backhaul link capacity after the forthcoming capacity reduction; when the traffic load is determined to exceed the estimated backhaul link capacity after the forthcoming capacity reduction:
reducing the traffic load associated with the serving of UEs, in accordance with the estimated capacity of the backhaul link after the forthcoming capacity reduction; andindicating to the backhaul communication entity that the traffic load has been reduced in accordance with the estimated capacity of the backhaul link, thus indicating that the procedure entailing reduced backhaul link capacity may be started.