China Mobile Group Beijing Ltd. (CMBJ) has selected Nokia Siemens Networks to expand its General Packet Radio Services (GPRS) core network. The upgrade will benefit millions of additional visitors expected in Beijing during the Olympic games next August.
Nokia Siemens Networks said the high user capacity of its packet core solution allows operators to handle a huge number of mobile consumers, even if they are using data services heavily. One part of the solution, the Serving GPRS Support Node (SGSN), combines support for 2G and 3G networks dynamically in one system. Operators are therefore free to devote available capacity to the network where the capacity is needed without adding new hardware. The SGSN also prepares an operator’s network for the so called “direct tunnel architecture” or “flat architecture”. This architecture is part of the Long Term Evolution (LTE) of mobile data networks. With this technology the payload of the connection will be handled directly between access and the GGSN. Only the signaling part has to be routed through the SGSN. This saves a lot of capacity in the SGSN, so an increase in traffic doesn’t mean an additional investment in this part of the network.
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