# The 6G Ecosystem as Support for IoE and Private Networks: Vision, Requirements, and Challenges
## 1 Introduction
While the prospects of 6G communication technology bring forth many challenges and complexities, worldwide deployment is expected in 2030 [6; 7]. Promising enhanced coverage and mobility through satellite communication, 6G technology highlights a crucial gap in the current landscape--poor rural coverage, the absence of data rates exceeding 1 Tbps, and the necessity for exceptional reliability and extremely low latency. This inherent disparity requires a delicate balance so as not to compromise the quality of the system and services, nor affect user satisfaction. The International Telecommunication Union (ITU), in its Recommendation ITU-T P.10/G, defines two approaches to quality assessment: one is the measure of quality of service (QoS), and the other is the measure of quality of experience (QoE) [8]. Typically, within a communication system, the communication quality, and media signal quality components are concerned with users' perceptions of how effectively the system supports communication. It specifically emphasizes the quality attributes associated with aspects of communication. Within network and communication applications, QoS represents an evaluative measure of service quality provided by the network. This network-centric gauge assesses the quality of data transmission in communication networks. QoS measurement encompasses metrics evaluating the key performance indicators (KPIs) of a communication system. QoS indicator values are anticipated through an analytical model of the overall telecommunications system's performance, considering known parameters of user behavior and the technical characteristics of the telecommunications network [9; 10]. However, there are other definitions of QoS, such as that used by the Internet Engineering Task Force (IETF), where QoS characterizes the performance of functional services in network layer models. This paper adopts an approach that defines the characteristics of both a network-centric system and an end-to-end system. Quality of experience (QoE), in which the latter serves as the benchmark for high quality, and driven by user-centric communications, addressing the whole user experience. QoE refers to the extent of user satisfaction or dissatisfaction with an application or service. The assessment, representation, prediction, and utilization of QoE play a crucial role in evaluating the overall performance of the relationship between the user and the system or service. This process hinges on various dimensions, including user experience, technology, context, environment, application, resources, and network QoS impairments [11; 12]. This will be realized through augmented reality, virtual reality, holographic communications, and the tactile internet, which necessitate very high data rates coupled with exceptionally low latency. Discussions and research on 6G requirements are abundant [13; 14; 15], and multiple viewpoints and approaches propose different ways to meet these demands. Some proposals go towards exploring potential applications encompassing mobile broadband and low latency (MBBLL), massive broadband machine-type (mBBMT), and massive low-latency machine-type (mLLMT) communications [16]. Others emphasize issues such as further-enhanced mobile broadband (feMBB), extremely reliable and low-latency communications (ERLLC), umMTC, long-distance and high-mobility communications (LDHMC), and extremely low-power communications (ELPC) [17]. Still, others are also concerned with the following features: ubiquitous mobile ultra-broadband (uMUB), ultra-high-speed with-low-latency communications (uHSLLC), and ultra-high-data density (uHDD) [18]. Built upon an open network platform, 6G is poised to facilitate service-centric network slicing management on demand. This capability empowers service providers and industry-specific markets to swiftly deploy novel services as required.