Shanghai Bell, Alcatel's S12 CDMA switching system is the most extensive worldwide sales of the S12 platform and then to a staged basis. It has a distributed control subjects, the modular system structure, module load sharing module settings and importan

And built-in SSP function, support for mobile intelligent network service, high reliability and stability. To meet today's highly competitive mobile communications market, Alcatel Shanghai Bell and CDMA wireless subsystem suppliers to develop interconnection interface between systems from different vendors to achieve interoperability for operators to provide the most advanced full range of mobile communications solution.
Performance:
􀁺 exchange functions: in the MSC interface, T1/E1 trunk of 56kbps or 64kbps in the transmission of voice / data channel for the exchange process.
􀁺 signaling functions: termination and processing ANSI SS7 56kbps or 64kbps ITU SS7 signaling for voice / data channel; TCAP; IS-41 MAP; ISUP; BSSAP (including ANSI or ITU MTP / SCCP support BSSMAP and DTAP); termination and processing of R1 and R2 signaling.
􀁺 base station features: Complete and base station system for all system functions, including in accordance with CDMA A connection interface standard defined business BSC and MSC, and a variety of features.
􀁺 VLR function: the completion of the location register to access all functions, including network elements and HLR, and other interactive features to work.
􀁺 call processing functions: the completion of call setup and release functions, MSC VLR for the MS from the caller and the called MS to extract user data. MSC according to MIN / IMSI identifying the calling MS, according to MIN
Or TLDN identify the called MS.
􀁺 O & M functions: the completion of all operations and maintenance functions, including co-ordination with the OMC-S function.
􀁺 mobility management functions: mobility management process consists of mobile registration, authentication, and downloaded through the A interface to the BSC in the key. Encryption key used to signaling messages (SMEKEY) and voice, data encryption (private long code mask).
􀁺 CDMA switch: S12 products support the CDMA hard handoff, soft switching, more soft-switch and idle switch.
􀁺 STP function: S12 MSC-based global title translation provided (GTTs) information delivery capabilities. It can not detect when and targeted, and provide congestion control. MSC can support about 12,000 more than GTTs entrance.
Advantages:
􀁺-wide distributed control, high security, low network blocking probability
􀁺 high reliability system, an important function to the primary backup and load-sharing mechanisms to achieve
􀁺 performance, support for 100% of the processing power of smart business
􀁺 support multiple smart services and supplementary services to increase the competitiveness of operators
􀁺 with other PLMN, PSTN interworking network compatibility, allowing users to call accessible
􀁺 widely recognized world field of telecommunications solutions for S12
 

Nokia Shanghai Bell Co., Ltd.

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