The Quality of Experience (QoE) management procedures for multimedia services benefit from an effective collaboration between the Mobile Network Operators (MNOs) and the Over-The-Top (OTT) service providers as the former can allocate the appropriate network resources to the users and the latter has access to key influence factors for having a proper view of the provided QoE. One successful collaboration model is the zero-rated data rate approach, according to which the MNO limits the data rate of the users towards the collaborating OTT applications with the benefit for the user that the generated traffic is not counted in her monthly contract data limit. Accordingly, the MNO may reduce the network congestion, and the users are encouraged to select the collaborating OTT applications. Though, this approach does not consider the resulting QoE, which may vary significantly from one user to another even if the same throughput is given. Based on this consideration, in this paper, we proposed the zero-rated QoE approach, according to which the limit is introduced in terms of QoE rather than throughput. This clearly requires a stronger collaboration between the OTT and the MNO, as the first has to give access to the second to quality influence factors and the latter to allocate resources according to the predicted QoE. The contributions of this paper are: the introduction of the novel zero-rated QoE approach with particular reference to video streaming services; the definition of novel components in the 3GPP architecture so that this approach can be introduced; the definition of the algorithm for the allocation of the appropriate radio resources to each user; a simulation analysis where the proposed approach is compared with respect to the former zero-rated approach, which shows significant improvements in terms of average provided quality and quality fairness at the same overall throughput.

中文翻译：

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5G 中的 MNO-OTT 协作视频流：质量和资源管理的零额定 QoE 方法

多媒体服务的体验质量 (QoE) 管理程序受益于移动网络运营商 (MNO) 和 Over-The-Top (OTT) 服务提供商之间的有效协作，因为前者可以将适当的网络资源分配给用户和后者可以访问关键影响因素，以便正确了解所提供的 QoE。一种成功的协作模式是零速率数据速率方法，根据该方法，移动网络运营商将用户的数据速率限制为协作的 OTT 应用程序，从而为用户带来好处，即产生的流量不计入其每月合同数据限制。因此，MNO可以减少网络拥塞，并且鼓励用户选择协作的OTT应用。虽然，这种方法没有考虑由此产生的 QoE，即使给定相同的吞吐量，从一个用户到另一个用户也可能会有很大差异。基于这种考虑，在本文中，我们提出了零额定 QoE 方法，根据该方法引入了 QoE 而不是吞吐量方面的限制。这显然需要 OTT 和 MNO 之间加强合作，因为前者必须让第二个访问质量影响因素，后者根据预测的 QoE 分配资源。本文的贡献是： 介绍了新颖的零额定 QoE 方法，特别是针对视频流服务；3GPP 架构中新组件的定义，以便可以引入这种方法；为每个用户分配适当的无线电资源的算法的定义；