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White Paper

Combining Innovative Radios in Area-Licensed & Unlicensed 60 GHz Spectrum Maximizes Small-Cell Backhaul Performance
pdf (820 kb)
Executive Summary

Small-cell deployment is being considered by mobile operators around the world as a means to satisfy the everincreasing mobile broadband traffic requirements in urban areas.

Due to the need for deploying a very large number of mobile base stations on existing support structures at street-level, such as lamp posts, a number of problems have to be addressed and cost-effective backhauling is one of the major issues.

Wireless microwave (MW) systems have dominated the backhaul of macro mobile base stations in most areas of the world but for this application their characteristics need significant adaptations. The radios should be designed to combine operational versatility and flexibility in elegant-looking and compact form-factors. Furthermore, the use of area-licensed MW spectrum and unlicensed 60 GHz spectrum is suited to a number of small-cell backhaul characteristics.

Chapter 2 in this paper presents a case study of how software-defined Point-to-Point (PtP) / Point to Multi-Point (PtMP) MW radios can be combined with PtP 60 GHz radios to optimize the performance of a small-cell backhaul network, while maintaining its robustness. In the first part of the case study, a backhaul network design utilizing a limited amount of area-licensed spectrum is presented. In the second part, the selective replacement of some of the MW links by high-capacity

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