Posts about Mobile Backhaul

Timing issues have been a concern of mobile network architects ever since Ethernet - an inherently asynchronous protocol - became important for mobile backhaul. The reasons are obvious enough: without exquisitely maintained timing relationships, user experience degrades or calls terminate because they are not handed over properly from one cell to the next.
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Since the early ‘70s, the role of public mobile communication has changed from voice applications for privileged individuals in business and administrations to a ubiquitous service with significant relevance in everybody’s social and business life. Such a major transition was made possible by a sequence of innovations and the introduction of new technologies as specified by the 2G, 3G, LTE and LTE-Advanced releases.
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The continuing evolution of radio access network technology and the introduction of packet-based mobile backhaul have created a major paradigm shift for network synchronization. Packet networks need to address synchronization requirements that were once inherently provided by the network. And they need to support increased clock accuracy and greater availability of synchronization signals as the quality of experience of mobile services is increasingly dependent on base station clocks that are aligned accurately and have high stability.
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LTE-Advanced Release 10 is a major enhancement of the Long Term Evolution (LTE) standard developed by the 3rd Generation Partnership Project (3GPP). This new technology is targeting peak data rates up to 1Gbps and introduces new concepts with the ultimate goal of designing a system that is drastically enhanced in both cell capacity and coverage.
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