5G White Paper By NGMN Alliance

 
In 5G, there is a need to push the envelope of performance to provide, where needed, for example, much greater throughput, much lower latency, ultra-high reliability, much higher connectivity density, and higher mobility range. This enhanced performance is expected to be provided along with the capability to control a highly heterogeneous environment, and capability to, among others, ensure security and trust, identity, and privacy.
 

5G will operate in a highly heterogeneous environment characterized by the existence of multiple types of access technologies, multi-layer networks, multiple types of devices, multiple types of user interactions, etc. In such an environment, there is a fundamental need for 5G to achieve seamless and consistent user experience across time and space.

TECHNOLOGY AND ARCHITECTURE

ONGOING TECHNOLOGY TRENDS

 5G DESIGN PRINCIPLES

RADIO: Leverage spectrum Exploit higher frequencies and unlicensed spectrum C/U-path split, UL/DL split, multiple connectivity Enable cost-effective dense deployments Integrate third-party/user deployments Automate configuration, optimization and healing Enhance multi-RAT coordination Support multi-operator/shared use of infrastructure Coordinate and cancel interference Build-in massive MIMO and CoMP Exploit controlled non-orthogonal interference Support dynamic radio topology Moving cells, relays, hubs, C-RAN, D-RAN D2D (e.g., for latency, disaster relief)

CORE NETWORK: Create common compos-able core Minimize number of entities and functionalities C/U-function split, lean protocol stack No mandatory U-plane functions Minimize legacy inter-working RAT-agnostic core Fixed and mobile convergence

OPERATIONS AND MANAGEMENT: Simplify operations and management Automation and self-healing Probe-less monitoring  Collaborative management Integrated OAM functionality Carrier-grade network cloud orchestration

Management Embrace flexible functions and capabilities Network slicing Function variance Flexible function/service/application allocation Leverage NFV/SDN  State-disintegrated functions Graceful degradation

Support new value creation Exploit big data and context awareness Expose radio and network APIs Facilitate XaaS Build in security and privacy Extend C-plane security (e.g., HetNets) Ensure location

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