Foreword by Dr. Ulf Nilsson
It has now been a few years since the first commercial launches of SAE/LTE networks in the world and since the first publication of this book. A lot of both expected and unexpected things have happened in the mobile industry since then. When 4G was brought to the market by TeliaSonera, we did it because we could easily see that the traffic demands in the coming years would not be possible to handle using 2G and 3G technologies at a reasonable cost. So did the SAE/LTE networks deliver on the expectations we put on it? The answer is undoubtedly yes. Our users are now browsing the Internet wirelessly at speeds many times higher than previously with noticeably lower delays, even outperforming many of the available fixed ...
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