WRC-15: Win Some, Lose Some

WRC 2015WRC15 concluded with new spectrum assigned for mobile services:

L-band:  1427-1518 MHz is now assigned for fixed and mobile services. The L-Band is used for mobile satellite services. Technical measures need to be developed for co-existence with mobile satellite in 1518-1559 MHz. The 1350 – 1400 MHz was also a target for IMT, but it did not get the required support. Read more of this post

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The Challenges of 5G Spectrum

5G MobileThere has never been as much uncertainty about spectrum for a new generation of mobile service technology as there exists today for 5G. GSM was set in the 800 / 900 MHz band and 3G was set in the 2.1 GHz band. Vendors aligned their products with the target bands. There was clear focus and purpose. Then came LTE where uncertainty on spectrum began to creep. Looking back at 2006-2009 timeframe when LTE was under developments and in trials, a number of bands were identified and available instead of specific spectrum. Initially the thought was for higher bands such as 2.5 GHz, but LTE was deployed in 700 / 800 MHz first reiterating that coverage is always the lead driver for deployments of new technologies for both regulatory and practical business and operational considerations: after all, there’s no capacity challenge on new networks. Today, fragmentation of spectrum is the hallmark of LTE. While much of the same will be for 5G when it happens, it promises to be even a deeper problem. Read more of this post