Rashid's Telecom Blogs

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Huawei umptb7 UMPT GSM WCDMA main control board for Huawei BBU3900 BBU 3900 The BTS3900 is applicable to the indoor scenarios such as centralized installation and relocation of the macro BTS, as shown in Figure 1-1.  The BTS3900 supports –48 V DC power input and the modules. The modules of the BBU3900 and CRFU are installed in a centralized way in an indoor cabinet. As the most compact indoor macro BTS in the industry, the BTS3900 features a large capacity, good extensibility, light weight, and a small size.  In addition, the BTS3900 can be stacked and combined to save space, as shown in Figure 1-2. Technical specifications of the BTS3900 Item Specification Working band Frequency band Receiving band Transmitting band Band class 0 (800 MHz) 824 MHz to 849 MHz 869 MHz to 894 MHz Band class 15 (AWS) 1710 MHz to 1755 MHz 2110 MHz to 2155 MHz Band class 1 (1900 MHz) 1850 MHz to 1910 MHz 1930 MHz to 1990 MHz Band class 14 (US PCS 1.9 GHz) 185

How Supercomputing Can Survive Beyond Moore's Law Today’s technology makes a 1-exaflop supercomputer capable of performing 1 million trillion floating-point operations per second almost inevitable. But pushing supercomputing beyond that point to 10 exaflops or more will require major changes in both computing technologies and computer architectures. Planning for such challenges has been a major focus for Erik DeBenedictis, a computer engineer at the Advanced Device Technologies department at Sandia National Laboratories in Albuquerque, NM. He has worked with the IEEE Rebooting Computing initiative and International Technology Roadmap for Semiconductors to pave the way for the future of both computing and supercomputing. DeBenedictis outlined several possible technology paths for supercomputing—the millivolt switch, 3-D integration, and specialized architecture—at the  session titled “Beyond Moore's Law” at the  International Conference for High Performance Computing, Ne