Fig 5 - uploaded by Vincent O.C. Eke
Content may be subject to copyright.
The basic network architecture of GPRS The SGSN: This functions as a delivery node to the network. It serves the mobile station by tracking its location (via HLR) and delivering the data to the base station serving the MS. It controls access to MSS that may be attached to a group of Base Station Controllers (BSCs). This is called the Routing Area (RA) or Service Area (SA) of the SGSN. It is responsible for delivery of packets to the Mobile Switching Centre (MSC) in its Service Area and from the MS to the internet. It also performs the logical link management, authentication and charging functions. SGSN is a router that is similar to the Foreign Agent (FA) in the mobile IP. The interface that connects the MS to the BSS is called the Um interface while the Gb interface connects between the BSS and the SGSN.
Source publication
Requirements analysis is the first technical step in the system engineering process. In most cases, it should capture what the users and the developers require. A survey is essential to ensure that the developer and the user have the same perception of the system. Global communications network Access techniques provide ubiquitous network access to...
