By Martin Sauter
This revised variation of Communication structures from GSM to LTE: An advent to cellular Networks
and cellular Broadband moment Edition (Wiley 2010) comprises not just a technical description of the
different instant platforms to be had this day, but additionally explains the explanation in the back of the several mechanisms and implementations; not just the ‘how’ but additionally the ‘why’. during this approach, the benefits and in addition barriers of every know-how turn into apparent.
Offering a high-quality creation to significant worldwide instant criteria and comparisons of different wireless
technologies and their purposes, this version has been up to date to supply the newest instructions and
activities in 3GPP standardization as much as unlock 12, and importantly incorporates a new bankruptcy on Voice
over LTE (VoLTE). There are new sections on construction Blocks of a Voice Centric equipment, development Blocks of a sensible mobile, quickly Dormancy, IMS and High-Speed Downlink Packet entry, and Wi-Fi-Protected Setup.
Other sections were significantly up-to-date in areas reflecting the present country of the technology.
• Describes the various platforms in accordance with the criteria, their useful implementation and layout assumptions, and the functionality and potential of every process in perform is analyzed and explained
• Questions on the finish of every bankruptcy and solutions at the accompanying web site make this booklet excellent for self-study or as path material
Read or Download From GSM to LTE-Advanced: An Introduction to Mobile Networks and Mobile Broadband PDF
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Additional resources for From GSM to LTE-Advanced: An Introduction to Mobile Networks and Mobile Broadband
If this value is divided by the number of subscribers per cell, the total number of base stations required to serve such a large subscriber base can be determined. With our estimation above, the number of base stations required for the network would be about 18,500. This value is in line with the numbers published by the operator . In practice, it can be observed today that the voice minutes per subscriber per month are increasing because of falling prices. To compensate, network operators can either increase the number of base stations in the areas of high demand or add additional transceivers to the existing base stations and increase capacity on the backhaul link to the network.
This means that a 577-microsecond burst transports 114 bits of user data. Finally, each frame contains 2 bits to the left and right of the training sequence, which are called ‘stealing bits’. These bits indicate if the data fields contain user data or are used (‘stolen’) for urgent signaling information. User data from bursts that carry urgent signaling information are, however, lost. As shown below, the speech decoder is able to cope with short interruptions of the data stream quite well, and thus the interruptions are normally not audible to the user.
To prevent any overlap, guard times were introduced. These parts of the burst are very short, as the network actively controls the timing advance of the mobile device. More about this topic can be found below. The training sequence in the middle of the burst always contains the same bit pattern. It is used to compensate for interference caused, for example, by reflection, absorption and multipath propagation. On the receiver side, these effects are countered by comparing the received signal with the training sequence and thus adapting the analog filter parameters for the signal.
From GSM to LTE-Advanced: An Introduction to Mobile Networks and Mobile Broadband by Martin Sauter