By Andy Wilton
Instant operators will locate this useful, hands-on advisor to community deployment beneficial. in line with their very own broad event, the authors describe an end-to-end community making plans approach to carry the assured caliber of carrier (QoS) that permits cutting-edge instant IP companies similar to VoIP, WWW and streaming video. With a spotlight on functional layout, entire examples are supplied for • GSM/GPRS/EDGE • UMTS/HSDPA • OFDM • Mesh Wifi • Packet backhaul issues addressed comprise: • capacity/peak facts charges, • carrier latency • hyperlink budgets • lifecycle charges • community optimisation The trade-off among more advantageous person event and operator fee is explored within the context of an better company version. compatible for radio and center community planners, designers, optimizers, and enterprise improvement employees at operators and community gear brands, the book's broad references additionally make it an invaluable source for graduate and postgraduate scholars.
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R In the GPRS standby state, the subscriber is attached to GPRS mobility management. There are associated data sets for the subscriber’s IMSI stored in the MS and SGSN and the network may page the MS to enable reception of network-originated data. xml 30 QC: SFK/UKS CUUK203-Wilton T1: SFK July 10, 2008 20:24 Wireless network systems locally. The MS executes mobility management procedures to inform the SGSN when it has entered a new RA. Transfer of user data to and from the network is not possible in this state.
2 Authentication and location updating As mentioned earlier, one of the additional complexities of a mobile network is the need for the network to ‘know’, physically, where the mobile is so that it can route signalling and traffic to the appropriate cell . In practice, it is convenient to group numbers of cells together and label them as a ‘location area’. This reduces the amount of signalling the network has to support as the mobile moves across cells that might be as small as 500 metres diameter, yet still enables the MS to be located quickly by ‘paging’ it within the location area to identify the specific cell within which it is located.
1 Cellular networks 21 they can be configured by the operator to receive new services and, eventually, software upgrades to phone operating systems. Operations addresses the major day-to-day activity for network mangers and describes the functions that allow the PLMN operator to monitor the performance of the network and, by means of the management network, to optimise the parameters of the PLMN to improve the quality of service provided to subscribers. Functions are also provided to allow for the collection of comprehensive activity reports including call and call path information for individually identifiable subscribers.