Fast Track Voice over LTE
With a simple upgrade to their circuit switched core network, operators can smoothly start offering Voice over LTE much sooner than they thought. This is according to networking firm Nokia Siemens Networks.
Long Term Evolution/System Architecture Evolution (LTE/SAE) is the next-generation mobile network technology that enables faster and smoother delivery of new multimedia and rich call applications. Based on a flat, all-IP architecture, it provides the most efficient radio solution for mobile broadband voice and multimedia.
According to Nokia Siemens Networks they have developed a smart approach for providing voice service over LTE networks that operators can implement with simple and cost-effective software and hardware upgrade to their existing 3GPP circuit-switch core network.
“The ‘Fast Track VoLTE’ approach provides a cost-efficient way to offer voice over LTE (VoLTE) in any mobile network architecture,” the company said.
The Fast Track VoLTE solution allows Nokia Siemens Networks’ customers to make use of their existing mobile softswitching and NVS VoIP server infrastructure to manage voice traffic over the LTE network, a function which will eventually be handled by IP Multimedia Subsystem (IMS).
The solution should give operators the flexibility to offer VoLTE to their customers either by implementing IMS, which brings added value with multimedia services, or by using existing softswitches and NVS, giving them an important competitive time-to-market advantage.
“Fast Track Voice over LTE supplies the missing link in the evolution of voice," said Michael Clever, Head of Next Generation Voice and Multimedia, Nokia Siemens Networks. ”It can provide a transitional step between traditional networks and the all-IP world of LTE. The solution allows our customers to exploit their investment in their existing circuit-switched mobile core network, while providing next-generation service. Later, they can proceed to a full IMS solution to provide converged multimedia services, in addition to VoLTE. This is cost-effective, sensible evolution.”
Nokia Siemens Networks was the first to demonstrate LTE technology in 2006 with data speeds in the 160Mb/s range, including handovers between LTE and WCDMA/HSPA.
In 2008, the company announced it had started to provide its customers with LTE-compatible Flexi Base Station hardware, which offers a smooth path to the future ultra-high speed wireless broadband.
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