By Wilton A., Charity T.
Instant operators will locate this useful, hands-on consultant to community deployment worthwhile. in keeping with their very own broad event, the authors describe an end-to-end community making plans approach to bring the assured caliber of provider (QoS) that allows state-of-the-art instant IP companies equivalent to VoIP, WWW and streaming video. With a spotlight on functional layout, finished examples are supplied for • GSM/GPRS/EDGE • UMTS/HSDPA • OFDM • Mesh Wifi • Packet backhaul subject matters addressed comprise: • capacity/peak information charges, • provider latency • hyperlink budgets • lifecycle expenses • community optimisation The trade-off among more advantageous consumer adventure and operator fee is explored within the context of an more advantageous company version. appropriate for radio and center community planners, designers, optimizers, and enterprise improvement employees at operators and community gear brands, the book's vast references additionally make it an invaluable source for graduate and postgraduate scholars.
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The network management model is structured to reflect the way the activities are typically managed within a business. The major activities are identified as: r r r r Configuration management, Customer administration, Operations, Maintenance. Because of the sensitivity of customer data and the need to maintain accurate and traceable records by law, considerable attention has been paid in the TMN specifications  to ensure that there is a hierarchical security structure that allows tiered levels of access to TMN functions.
For most calls, it will also handle all aspects of mobility necessary to ensure that the connection is maintained seamlessly as the user moves from one cell to another. Occasionally, the MSC is involved to execute an inter-BSC handover, which occurs when a mobile moves from a cell managed by one BSC to another cell managed by a different controller. The core and access networks perform similar functions for packet traffic for those networks supporting GPRS (GSM packet radio system) but using the packet control unit (PCU) – a part of the BSC, the serving GPRS support node (SGSN) and gateway GSN (GGSN).
Location services? g. Roaming) EIR, HLR and AuC functionality Authentication Centre Database server Processor Database - Identity key associated with each IMSI Processes - Generation of IMSI authentication data - Cipher key generation 18 Wireless network systems When a new subscriber first switches on his or her mobile phone it sends a location update message via the access network to the visitor location register (VLR), which is usually co-located with an MSC [17, 18]. The message will contain the following information: r r r r Subscriber IMSI, Cell identifier, Location update type, Cipher information.
Deploying wireless networks by Wilton A., Charity T.