A method of operating a device (101, 102, 112) includes implementing (7001) a persistent allocation (281) of a plurality of first resources (251) to a first channel (261, 263) of a wireless link (114) supported by an access node (112); and temporarily overriding (7004) the persistent allocation (281) for a subset (251 A) of the plurality of first resources (251); and while overriding (7004): implementing (7005) a dedicated allocation (282) of a plurality of second resources (252) to a second channel (262) of the wireless link (114).