Abstract
Network programmability is a key feature of fifth generation (5G) system which, in combination with cloud-based services, can support many use cases, including mission critical and healthcare communications. Programmability enables flexibility in customization of service connectivity. Multi-access Edge Computing (MEC) services and applications are enablers for network programmability. In this paper, MEC capabilities for programmability of multiparty multimedia call control at the network edge are studied. Multiparty video calls are one of the key applications of 5G, and are efficient way to exchange ideas, knowledge, expertise, information, and so on. The paper presents an approach to design MEC Application Programming Interfaces (APIs) which enable third party applications to create multiparty multimedia sessions and dynamically manage session participations. The API functionality is described by required information and message flows. The paper specifies the proposed MEC API with data model. Feasibility study includes modelling and formal validation of multiparty session state models supported by the network and mobile edge application. The latency injected by the API is evaluated by emulation.
Highlights
Fifth generation (5G) system has huge potential to improve our daily lives in various aspects, including numerous mission critical and healthcare scenarios
When the mobile edge application decides to remove a participant from a multiparty multimedia session, it sends an HTTP DELETE request to the sessionParticipantID resource containing in its body the updated media
To assess the feasibility of the proposed Application Programming Interfaces (APIs), we model the visions of the network and mobile edge application on the state of a multiparty multimedia session
Summary
Fifth generation (5G) system has huge potential to improve our daily lives in various aspects, including numerous mission critical and healthcare scenarios In these scenarios, multiparty communications are an important feature, and 5G technologies can add value enabling enhanced broadband connections, ultra-low latency, and high reliability. Mission critical and machine type communications usually exploit dedicated networks where the communications with telecom operator core network is optional These deployments are regarded as distributed core network functionality and enable more efficient provisioning of network intelligence, and improvement of customer experience and network performance [2], [3]. Our proposal for deployment of mission critical multiparty communication services is based on MEC and distributed dedicated core network functionality, including access and mobility management, session management, user data registry, and user plane functions. The conclusion summarizes the novelty and benefits of the proposed API
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