The media production element (12) combines media content from a plurality of streaming electronic devices when they are registered to be within the same streaming event. The media production element (12) can produce a combined live video stream or a combined media production using selections and combinations of the streamed content provided by the multiple electronic devices. A network assistance device (42) can determine event-coordinated uplink network assistance data with the goal of prioritizing resource allocation to clients/electronic devices that currently are used for the combined media production, and assign less resources to those that are not currently used. Rather than optimizing individual links, the event-coordinated uplink network assistance data is determined by taking the aggregated capacity and the production needs of the media production element (12) into account.