Scalable DSP platform for small to macro-cell LTE base stations

To deliver on the performance expectations for 4G networks, operators will need to deploy a mix of low-cost pico and femto cells, along with lower power macro cell base stations, to meet green energy requirements. has stepped up to the plate and delivered with its TCI6636 LTE/ base station on a chip. The 28 nm SoC is the first to employ TI’s KeyStone II architecture, and the first chip of any kind to pack four of ARM’s most advanced Cortex-A15 cores on a single piece of silicon. TI architected the TCI6636 for applications in the high-end of the small cell market segment, supporting up to 256 users. Designers can also connect three TCI6636 SoCs to build a macro-cell base station, lowering cost and power compared to alternative architectures, by eliminating additional components such as network processors and antenna .

The TCI6636 has eight of TI’s C66x cores, each with a dedicated 1 MB memory subsystem for 320 GMACS, and 160 GFLOPS performance. General-purpose processing is performed by the quad ARM Cortex-A15s, cumulatively providing 17.5 Dhrystone MIPS. TI adds accelerators to the base KeyStone architecture for Cat-7 LTE support (300 Mbps downlink, 150 Mbps uplink).

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