Phase 1 is expected to be completed in the second half of 2018.

Development of specifications for 5G in 3GPP is likely to be split across multiple releases, with two phases of normative work. A study item on channel modelling for spectrum above 6 GHz has been approved. The 3rd-generation Partnership Project (3GPP) has begun its journey towards 5G, with a 5G workshop held in September 2015. The International Telecommunication Union (ITU) has outlined a vision for 5G, which it will refer to as “IMT-2020,” providing a first glimpse of potential scenarios, use cases and related ITU requirements that eventually will define 5G. However, it is expected that the first commercial deployment of 5G will happen in frequency bands close to 4 GHz, and that 28 GHz deployments will come later. Eventually, all mobile telecommunications bands, from below 1 GHz, up to as high as 100 GHz, could potentially become candidates for 5G. New frequency bands below 6 GHz for mobile telecommunications are handled in WRC-15. The identification of frequency bands above 6 GHz for mobile telecommunications will be handled in the World Radio Conference in 2019 (WRC-19). The actual frequency bands, and the amount of spectrum, have not yet been identified. New spectrum for 5G is expected to be available after 2020. Most of the traffic growth is expected to be indoor and thus indoor coverage is important. To handle massive growth in traffic volume, wider frequency bands, new spectrum, and in some scenarios denser deployment are needed. An increasingly wide range of applications with varying requirements and characteristics.A massive growth in the number of connected devices.There are three main challenges that need to be addressed by a so-called 5G wireless communication system to enable a truly “networked society,” where information can be accessed and data shared anywhere and anytime, by anyone and anything. The present disclosure is related to wireless communications networks and describes network architecture, wireless devices, and wireless network nodes suitable for, but not limited to, a fifth-generation (5G) wireless communications network.

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