Innovations and Trends in 5G Network Architecture

The 5G mobile network not only incorporates a new radio access technology but also transforms the mobile core network architecture. The new core network will embrace software defined networking principles through separation of user plane and control plane, natively incorporate virtualization through a modular architecture, and will serve multiple access technologies through access agnostic functions and protocols. The 5G architecture will be simpler and more open than in 4G, with the modular core network functions dynamically discovered and on-boarded to provide service. We describe the key aspects of a new services based architecture in which network functions expose capabilities through a registration and discovery process and make those capabilities available through a single reference point to all other authorized functions. We also look beyond the basic aspects of the architecture and examine several network architecture and technology trends that will impact the continuing definition of 5G and the resultant end-user experience enabled by network services. Specifically, we describe our vision for the following elements of the 5G architecture, including network slicing and expanded policy control framework, user plane programmability including dynamic protocol selection, network control of multi-connected device, and architecture features for self-backhauling.

Recent Publications

August 09, 2017

A Cloud Native Approach to 5G Network Slicing

  • Francini A.
  • Miller R.
  • Sharma S.

5G networks will have to support a set of very diverse and often extreme requirements. Network slicing offers an effective way to unlock the full potential of 5G networks and meet those requirements on a shared network infrastructure. This paper presents a cloud native approach to network slicing. The cloud ...

August 01, 2017

Modeling and simulation of RSOA with a dual-electrode configuration

  • De Valicourt G.
  • Liu Z.
  • Violas M.
  • Wang H.
  • Wu Q.

Based on the physical model of a bulk reflective semiconductor optical amplifier (RSOA) used as a modulator in radio over fiber (RoF) links, the distributions of carrier density, signal photon density, and amplified spontaneous emission photon density are demonstrated. One of limits in the use of RSOA is the lower ...

July 12, 2017

PrivApprox: Privacy-Preserving Stream Analytics

  • Chen R.
  • Christof Fetzer
  • Le D.
  • Martin Beck
  • Pramod Bhatotia
  • Thorsten Strufe

How to preserve users' privacy while supporting high-utility analytics for low-latency stream processing? To answer this question: we describe the design, implementation and evaluation of PRIVAPPROX, a data analytics system for privacy-preserving stream processing. PRIVAPPROX provides three properties: (i) Privacy: zero-knowledge privacy (ezk) guarantees for users, a privacy bound tighter ...