# The 6G Ecosystem as Support for IoE and Private Networks: Vision, Requirements, and Challenges
## 4 The Requirements of 6G  
The emergence of 5G has ushered in remarkable technological achievements, distinguished by exceptional transmission speeds, minimal latency, efficient power usage, and a wide-reaching connectivity capability. This innovation stands ready to serve many purposes, from individual consumers to various sectors and industries. This transformative progress takes form through three central scenarios: eMBB, mMTC, and URLLC [76; 2; 77]. It is anticipated that 6G will attain data rates of 1 TBPS or higher. Diverging from the two-dimensional communication structure of 5G and B5G, 6G will adopt a three-dimensional approach encompassing time, space, and frequency. Emerging technologies like edge computing, AI-aware, cloud computing, and blockchain will support this novel paradigm. The communication network of 6G is projected to be seamlessly integrated and omnipresent [78]. Envisioned as a comprehensive solution, 6G is poised to expand coverage extensively, spanning device-to-device, terrestrial, and satellite communications. The overarching objective is to fuse computation, navigation, and sensing within the communication network. Furthermore, in the core of security, 6G aims to address safeguarding, secrecy, and privacy of the vast amounts of big data generated by countless smart devices [79]. The architecture of the 6G communication network must address challenges stemming from the constrained computation capacity of mobile devices. A potential solution is offloading computation tasks to more potent devices or servers. The network demands hyper-fast data rates and ultra-low latency to facilitate real-time computation task offloading. The specifications for the end-to-end latency, radio delay, and processing in 6G are defined as \(\leq\)1 ms and \(\leq\)10 ns, respectively, ensuring real-time communication. Additionally, 6G is positioned as an authentic AI-driven communication technology [14]. The integration of satellite technology will be fundamental to 6G's capabilities. Furthermore, intelligent radio (IR) is anticipated to replace NR-Lite [80]. Anticipated to bring about a fully interconnected global environment, 6G is projected to establish a heterogeneous network that encompasses ground, air, space, maritime, and underwater communications. Enhanced by AI capabilities, artificial intelligence (AI)-driven communications will develop in a way that \"the 6G is about the 6 th sense\" [81]; the network entities within 6G will possess the ability to perceive and dissect multi-dimensional data, thereby enabling the effortless interlinking of terrestrial devices and onboard systems. The incorporation of pervasive artificial intelligence allows the achievement of large-scale network automation. In the age of 6G, each edge device is anticipated to be connected to the internet and regularly employ AI software. Many AI applications rely on data, raising concerns about the security and privacy of the collected information [82]. The autonomous management capability of 6G systems is improved to meet diverse application requirements, such as MBBLL, mBBMT, and mLMT communications [16; 83]. Furthermore, other proposals indicate that the path to this evolution will also pass through the focus on feMBB, ERLLC, umMTC, LDHMC, and ELC [17]. The upcoming 6G service classes of uMUB, uHSLLC, and uHDD stem from eMBB, URLLCs, and mMTC, mobile broadband reliable low-latency communication (MBRLLC), massive URLLC (mURLLC), human-centric services (HCS), multi-purpose services (MPS) [18; 75]. As the spectrum of requirements continues to broaden, 6G envisions the rise of more sophisticated service categories that are shaped by clustering applications with comparable needs, such as big communications (BigCom), secure ultra-reliable low-latency communications (SuRLLC), unconventional data communications (UCDC), and three-dimensional integrated communications (3D-InteCom) [84].