By Markus Rupp
ISBN-10: 0470699337
ISBN-13: 9780470699331
Read or Download Video and multimedia transmissions over cellular networks : analysis, modeling, and optimization in live 3G mobile networks PDF
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Additional info for Video and multimedia transmissions over cellular networks : analysis, modeling, and optimization in live 3G mobile networks
Example text
From this figure we learn that GPRS was attached to the existing GSM by adding the Packet Control Unit (PCU), while in UMTS the packet-switched data is processed in the same device as the voice and video calls. GPRS is the first mobile technology purely to target data traffic. This part of the book is but a brief introduction to the large topic of mobile communication systems. Later, we will refer to the associated standards of Third Generation Partnership Program (3GPP), which some may find hard to read.
Also, paging is realized via the BCCH, therefore, everything powered on mobiles will monitor this channel. The channel is unidirectional only. The Dedicated Control CHannel (DCCH) is a bidirectional signalling channel that can be used by the mobile to interact with the cell, for example register. Its schedule is broadcast via the BCCH. The TCH is allocated using the standalone DCCH (SDCCH). Combined with a booked TCH, the mobile station uses the slow associated DCCH (SACCH) to exchange system data such as the channel quality and the receiving power strength.
Combined with a booked TCH, the mobile station uses the slow associated DCCH (SACCH) to exchange system data such as the channel quality and the receiving power strength. Should the need for signalling data rate not be fulfilled by the SACCH, the mobile can book an additional signalling channel called the Forward Access Common CHannel (FACCH). This channel steals time slots from the TCH channel and uses them for signalling information. Such situations typically arise when there are handovers between different Base Transceiver Station (BTS) units.
Video and multimedia transmissions over cellular networks : analysis, modeling, and optimization in live 3G mobile networks by Markus Rupp
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