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IMT-2020 (5G) Promotion Group
5G Network Architecture Design White Paper
Along with the research on 5G getting further
and more detailed, the industrials have shaped
the basic consensuses on 5G scenarios. Facing
to the application scenario of enhanced mobile
Internet, 5G can provide access capability with
higher experienced data-rate and wider bandwidth
to support multimedia contents featured by higher
definition and living experiences. Facing to the
interconnection scenario of massive IoT devices,
5G can provide optimal control capability of higher
connection density signaling to support the access
management of IoT devices featured by massive, low
cost and power consumption. Facing to the vertical
business scenarios such as critical communication
or industrial Internet, 5G can provide information
interaction capability with extreme low latency
and high reliability to support service cooperation
featured by high performance of real-time, accuracy
and security among various interconnected entities.
Due to the extreme 5G requirement on experience,
efciency and performance, as well as the vision of
“everything connected”, 5G network now is facing
new challenges and opportunities. Based on the core
principles such as network service convergence and
on demand service provision, 5G introduces richer
radio access network architecture, providing smarter
capabilities like radio control, service awareness
Introduction
and protocol stacks. 5G reconstructs the control and
forwarding function in the core network, refreshing
the existing single pipeline and consolidated service
model. 5G will provide highly customized network
services for different user and vertical business on
top of the new friendly and openness infrastructure.
Above all, 5G will transform the network into an
integrated information service enabling platform
which has the characteristics of fully resource
sharing, easily function orchestration and tightly
service interworking.
The international 5G standardization work has been
launched completely. Therefore, it is very necessary
to refine the design of 5G network architecture and
focus on main technology direction to guide the
follow-up industrial development. In this white
paper, we introduce a novel 5G network architecture
design from the angel of logical function and
platform deployment and expand the architecture
design into four-dimension diagrams, then extract
the typical 5G service capabilities such as network
slicing, mobile edge computing, on-demand mobile
network reconstruction, user-centered RAN and
network capacities exposure, and nally offer advices
on the standardization work of 5G architecture and
technology.
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