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arXiv · 1601.03829

Cellular Communications on License-Exempt Spectrum: A Tutorial

Binyin Ren·Mao Wang·Jingjing Zhang·Wenjie Yang·Jun Zou·Min Hua
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Abstract

A traditional cellular system (e.g., LTE) operates only on the licensed spectrum. This tutorial explains the concept of cellular communications on both licensed and license-exempt spectrum under a unified architecture. The purpose to extend a cellular system into the bandwidth-rich license-exempt spectrum is to form a larger cellular network for all spectrum types. This would result in an ultimate mobile converged cellular network. This tutorial examines the benefits of this concept, the technical challenges, and provides a conceptual LTE-based design example that helps to show how a traditional cellular system like the LTE can adapt itself to a different spectrum type, conform to the regulatory requirements, and harmoniously co-exist with the incumbent systems such as Wi-Fi. In order to cope with the interference and regulation rules on license-exempt spectrum, a special medium access mechanism is introduced into the existing LTE transmission frame structure to exploit the full benefits of coordinated and managed cellular architecture.

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Binyin Ren, Mao Wang, Jingjing Zhang, Wenjie Yang, Jun Zou, Min Hua. 2016-01-15. Cellular Communications on License-Exempt Spectrum: A Tutorial. https://arxiv.org/abs/1601.03829

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