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COTS5GDvlpmnt

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WHITE PAPER COTS Software Defined Radio for 5G Development mrcy.com 2 COTS BACKGROUND During the early 90's congressional spending cuts meant the US military had to reduce R&D spending but had to retain global technological leadership for America's security. In 1994, then Secretary of Defense, William Perry wrote a memo that requested the military increase the purchase of commercial products and the use of commercial practices & specifications. The memo was officially enacted into law as part of the Federal Acquisition Streamlining Act (FASA) of 1994 and was a departure from the more stringent military specification requirements of the past that prohibited the purchase of more general purpose commercial products. This created a new industry based upon commercially available high performance products that could be re-purposed for "dual-use". As a result, an abundance of COTS products are available today with the latest technology available for both military & commercial purposes. COTS SDR DEFINED Each section of this article is divided into hardware, firmware, and software sub-sections for additional clarity. The hardware section is the SDR PCB including components, firmware is internal FPGA code to create a logic design and implement digital signal processing (DSP) functions, and software is C code to control an FPGA with firmware to perform any additional DSP functions. Commercial-Off-The-Shelf (COTS) Software-Defined-Radio (SDR) products have been traditionally used for Military RADAR and communication applications because of their high performance, and design flexibility. The latest SDR products offer SoC solutions with integrated I/O, ARM processors, and large FPGAs that include intellectual property (IP) for accessing, routing, and processing digital data. Combining these attributes with superior signal integrity, phase-coherent sampling, and multi-channel transceivers a COTS SDR system is an ideal choice for your 5G development platform. This article is designed to familiarize a new user about Software Defined Radio in a multi-purpose COTS platform that can reduce the time to market their 5G products. HARDWARE SDR replaces legacy analog systems that consisted of an RF Filter, analog down-convertor (Lo + Mixer), band-pass filters, and a demodulator (see figure 1a). These fixed analog systems were limited to a specific platform like AM, or FM radio and needed to be replaced if another platform was required. Figure 1a The primary function of SDR is to exploit digital signal processing techniques to support the ever-increasing complexity, precision, and bandwidth of today 's radio traffic. Suitable data conversion is required between the antenna signals and the DSP operations for both receive and transmit functions [1]. Figure 1b

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