4M Wireless licenses LTE protocol stack to Wuxi DSP


4M Wireless Ltd. (Luton, England) has licensed its Terminal LTE protocol stack to Wuxi DSP Technologies Inc. (Wuxi, China) and its subsidiary company Optimum Semiconductor Technologies Inc. (Tarrytown, New York).
The agreement will enable Wuxi DSP to develop the LTE-TDD trunk communications for the wireless infrastructure of private network markets in China, said 4M Wireless in a statement.
The Broadband Digital Trunking Standard is aimed for industrial applications of private network system in China. It provides dispatching assistance for emergencies such as natural disasters and other public security occurrences. It also supports commercial markets such as maritime and airport services, oil and logistics. Rollout of the Broadband Digital Trunking Standard in China is supported by the government.
Wuxi DSP Technologies makes use of an Optimum Semiconductor software defined radio (SDR) baseband chipset and the Sandblaster SB3500 DSP core acquired when Wuxi bought Sandbridge Technologies Inc. (White Plains, New York) in 2011.
The SB3500 DSP has a multi-threaded architecture that allows easy-portability of the 4M Wireless LTE user equipment protocol stack.
The 4M Wireless PS100 LTE TDD/FDD protocol stack is fully compliant with the 3GPP LTE specifications. It is in use in several TD-LTE basebands and has undergone significant field trials and lab test in China. The 4M Wireless protocol stack has passed out-door and in-door qualification programs of the Chinese MIIT (Ministry of Industry and Information Technology) and is deployed in several commercially available baseband solutions for the European Digital Dividend project, which is at present used in several countries in the Central European region.
4M Wireless, founded in 2006, entered the Silicon 60, EE Times' list of emerging startup companies at version 12.5 in April 2011.


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