SOLUTION OCTOBER 2007 . ISSUE 34 Empowered by the 3rd generation BSC Empowered by the 3rd generation BSC By Wu Si Where is BSC heading? he BSC orms an important mobile network component that, in the context o mobile communication’s developmental direction, provides a key link or holistic and urgently required network IP transormation and evolution. Te 1st generation BSCs were oriented to IS-95 and 1x, and mainly designed to solve traditional circuit voice problems. he 2nd generation BSCs were intended to meet basic data service and network IP transormation needs, while continuing to support circuit switched (CS) domain development such as EV-DO, and A and Abis inter ace IP trans ormation. Currently, the BSC is aced with unprecedented challenges regarding its capability and perormance. First o all, market competition and existing network operations have led CDMA operators to consider methods to accelerate network deployment and urther reduce end-to-end CO. Furthermore, Network evolution and development requires a remarkably improved QoS mechanism or EV-DO Rev. A, a more complex radio resource management algorithm, and a strong engine or Ultra Mobile Broadband (UMB) throughput that will even exceed 100 Mbps in a single sector. Adaptation to these market requirements calls or the emergence o the 3rd generation BSC. IP transformation empowered by the 3rd generation BSC he 3rd generation CDMA BSC is integral to solving existing networks’ traditional CS domain problems and achieving All-IP mobile broadband and real-time multimedia service network evolution. Accomplishing this depends on its ve outstanding capabilities. Powerul IP central switching network he 3rd generation BSC exhibits a remarkable capacity increase and a powerul IP central switching network. Its uniied internal IP switching network reduces complexity and improves integration, thus acilitating perormance improvements, reducing the number o unnecessary NEs (network elements) and enabling rapid network deployment. In addition, outstanding network perormance protects investment and ensures that the network can cost-eectively evolve to UMB. Flexible All-IP networking capability o enable All-IP networking, both high grade IP transmission eiciency and power ul physical inter ace capabilities are extremely important. Only the ability to support E1/1, FE, SM-1, ADSL, microwave and other transmission media can ensure convenient and lexible networking rom urban areas to remote islands or deserts. According to dierent operators’ bearer network conditions, the 3rd generation BSC provides di erent inter aces and networking schemes. For operators with rich DM resources, IP over E1 can be provided. For small and medium- sized operators with limited transmission resources, the implementation o direct IP connection without routers will realize CAPEX and OPEX reductions. Flexible confguration and easy maintenance Regardless o network scale, which can span tens o thousands o subscribers to several million, operators can conduct lexible con iguration and capacity expansion through stacking. his is undertaken concordantly with actual network development needs in order to seamlessly upgrade services. Even under a small-scale capacity coniguration, the 3rd generation BSC still oers a avorable price perormance ratio. Some manuacturers presently employ a patented Dual Plane Symmetrical Mixed-Plug technology with unbound slot positions to easily realize extremely complicated expansion and conguration changes. Due to the complexity o BSC services, traditional 2nd Generation products invariably possess dozens o board types, and the 3rd generation products reduce this quantity by using sub-boards coupled with other new design ideas. Tis tremendously reduces the complexity and 41