5G Functionalities implemented in 5G Core

Network Slicing

The network slicing provides the possibility of isolating network resources for certain services. The user plane nodes can work on services within dedicated slices. The slice can be instantiated , updated and deleted according to NFV concept, which makes it possible to differentiate the QoS in a fluent way.

Network slicing in core network deployment

Network slice set & cloud implementation

Optimization of the core & transport

Techniques include programmable transport, transport aware radio and dynamic load balancing. Transport - aware radio refers to the enhanced functionality in X2 interface i.e between base station elements.

Transport network

The role of transport networks is to interconnect the radio access and the core network.

Transport network requires higher grade of flexibility , simple service configurations , new operations model support and cross domain orchestration. An intelligent application referred to as transport intelligence function (TIF) , in an effort to enhance 5G transport network design.

Cross domain communication

The TIF is a cross-domain function located between radio access & transport networks.

The TIF receives RAN connectivity requests via cross domain communication bus.

Conceptual examples

Cross domain communication

The TIF is a cross-domain function located between radio access & transport networks.

The TIF receives RAN connectivity requests via cross domain communication bus.

Microwave transport network

The transport network must not create bottlenecks in the end - to - end performance. The demands increase along with the 5G, relying more on edge computing as well as onto the introduction of centralized and cloud RAN to the previous distributed RAN. Frequency bands located above 4GHz up to V-band (60 GHz) and E-band (70-80 GHz) which are considered as mm wave bands. W-band (90 GHz) and D-band (140 - 170 GHz)