The future 6G networks are indicated to be integral part of future “smart society”, and they will surely lead to the transformation of existing networks to highly intelligent computing networks delivering diverse sets of personalised applications and services. Furthermore, this will surely mark the beginning of the post-smartphone era unleashing the potential of futuristic mobile services such as eXtended Reality (XR), Holographic and volumetric video, Tactile internet, etc. In order to establish such a fusion of physical and virtual technologies coexistence of extreme low latency and broadband communications have to be enabled, which is not possible with the current 5G networks. In this context, the 6G Access Networks (ANs) must provide ubiquitous wireless access and also should be characterised by extremely high level of flexibility. To this end, diverse promising five-dimension (5D) services and applications are presented in this paper and the most important Key Performance Indicators (KPIs) supporting Ultra-reliable Low-latency Broadband Communication (ULBC). A flexible light-weight AN architecture based on user-centric approach is defined and its main characteristics are discussed.

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