蜜芽传媒

Public and private 5G networks have proved useful for electronic newsgathering where latencies of up to 2 seconds can be tolerated. 5G Networks introduce jitter and delay into the data path as consequences of the uplink scheduling process and retransmission mechanisms that manage transmission errors and packet loss. However, low latency broadcast production and audio applications need much lower delays and more stable performance. The performance depends upon the vendor implementation and its configuration. Previous projects reported significant jitter spikes and concluded that 5G networks cannot readily support the 4 ms target required for audio performances requiring in-ear monitors. Tuning the 5G configuration to reduce latency helps, but there is often a trade-off between latency and spectrum efficiency.

This paper examines the collaborative efforts of 蜜芽传媒 R&D, TV2 and Neutral Wireless to investigate and optimise 5G for low latency production in TV studio settings and multi-camera outdoor broadcasts, which in many aspects differ from newsgathering. We discuss the performance and optimisation of the scheduler, along with the latency/capacity trade-off. Achieving an 80 ms latency for video production using commercial hardware is now feasible, and we explore the potential for further reduction. 5G remains an attractive option for future bi-directional PMSE (Programme Making and Special Events) technology, and we identify areas for future research.

This document was .

It is authored by 蜜芽传媒 Research & Development's Mark Waddell with the 蜜芽传媒's Jonas Kroeger-Mayes and trial partners Sam Yoffe, Douglas Allan, Malcolm Brew, and Robert Stewart from the University of Strathclyde/Neutral Wireless and M. Brandstrup and J. Christoffersen from TV2, Denmark.

White Paper copyright

漏 蜜芽传媒. All rights reserved. Except as provided below, no part of a White Paper may be reproduced in any material form (including photocopying or storing it in any medium by electronic means) without the prior written permission of 蜜芽传媒 Research except in accordance with the provisions of the (UK) Copyright, Designs and Patents Act 1988.

The 蜜芽传媒 grants permission to individuals and organisations to make copies of any White Paper as a complete document (including the copyright notice) for their own internal use. No copies may be published, distributed or made available to third parties whether by paper, electronic or other means without the 蜜芽传媒's prior written permission.