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CEVA rolls multi-mode LTE-A reference architecture

30 May 2012

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CEVA Inc. has released a multi-mode reference architecture for the development of low power, LTE-Advanced (LTE-A) and legacy cellular modems. The scalable reference architecture is based on the CEVA-XC4000 DSP architecture framework and leverages innovative power management and system partitioning to enable a software-based LTE-A solution requiring a die area as small as 3.4mm2 and 100mW on a 28nm process, detailed the company.

To allow licensees complete flexibility and scalability for multi-mode wireless system designs, the reference architecture offers sophisticated software-hardware system integration capabilities, allowing for the seamless integration of customer-owned coprocessors and hardware accelerators. This level of flexibility enables the reuse of proprietary IP within the reference architecture. The reference architecture supports the most demanding use cases, including the maximum throughput of LTE-A Rel-10 up to CAT-7, noted CEVA. For example, it supports carrier aggregation of up to two carrier components to 40MHz channel bandwidth, with spatial multiplexing of 8x4 MIMO, 300Mb/s downlink and 100Mb/s on the uplink.

The LTE-Advanced reference architecture is supported by�CEVA-Toolbox, a software development environment, incorporating Vec-C compiler technology for advanced vector processors, enabling the entire architecture to be programmed in C-level. An integrated simulator provides accurate and efficient verification of the entire system, including the memory sub-systems. In addition, CEVA-Toolbox includes libraries, a graphical debugger, and a complete optimization tool chain named CEVA Application Optimizer. The Application Optimizer enables automatic and manual optimization applied in the C source code.

The LTE-A reference architecture is available today for lead customers.




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