Enhanced mechanism of scheduling request to multiple schedulers in a wireless network with inter base station carrier aggregation

摘要

Apparatus and method are provided to enhance scheduling request to multiple schedulers with inter base station carrier aggregation. In one novel aspect, the UE monitors and detects one or more SR triggering event. The UE selects one or more base stations based on predefined criteria and sends the SR to the selected one or more base stations. In one embodiment, at least one LC of the UE is associated with multiple BSs with association priorities. In one embodiment, the association priorities are configured by the network. In other embodiments, the association priorities are derived based on predefined UE configurations, or are derived from load information received by the UE, or are derived from radio measurements. In one novel aspect, the UE upon detecting SR failure triggered on a triggering LC, sends SR failure indication to a RRC layer or associates the triggering LC with a different base station.