The present invention pertains to a master node for use in a network with support for Bluetooth Low Energy, LE, links, said master node being adapted to receive, via Bluetooth LE, bandwidth reservation request messages including a minimal desired window length and a maximum desired window length; and schedule transmission windows for respective transmitters on said Bluetooth LE link in accordance with said minimum desired window length and said maximum desired window length advertised in said respective bandwidth reservation request messages, said scheduling being performed so as to minimize overlap between assigned values of said transmission windows to multiple nodes.
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