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Dual-mode SoCs for small cell developers

Posted: 23 Jun 2011 ?? ?Print Version ?Bookmark and Share

Keywords:dual-mode SoCs? small cell? base station?

Texas Instruments Inc. (TI) has introduced the TMS320TCI6612 and TMS320TCI6614 that are dual-mode small cell SoCs intended for metro, pico and enterprise small cell base stations developers.

The SoCs include processing elements such as radio accelerators, network and security coprocessors, combined fixed- and floating-point digital signal processors (DSPs) and an ARM RISC processor. They are enabled with production ready software and provide a suitable foundation for layers 1, 2 and 3 and transport processing for high performance small cell base stations.

According to TI, the TCI6612 and TCI6614 leverage their broad resources to bring processing, software and complimentary support devices to small cell developers. An all-inclusive software suite, based on TI's wireless application specific libraries, powers the devices. The SoCs also include complementary analog products such as data converters, RF products, power management, clocks and amplifiers that complete the integrated solution for small cell developers, reducing system cost and development time.

The TCI6612 and TCI6614's processing elements include two or four TMS320C66x fixed- and floating-point DSP cores and a power efficient ARM Cortex-A8 RISC processor, typically used for control plane processing. The DSP cores coupled with configurable wireless, network and security coprocessors handle the remaining base station functions, including all baseband and packet processing.

The TCI6612 and TCI6614 SoCs are code compatible with TI's entire KeyStone multicore portfolio and TMS320C64x DSP generation, ensuring reusability of all previous software investments made by TI customers. This flexibility allows base station manufacturers to develop a wide portfolio of products at a lower cost, lower power, and in less time than with competing solutions, TI said.

The TCI6612 and TCI6614 deliver features for the development of high performance small cell base stations such as LTE and HSPA+ data rate support, programmable capacity for spectrum optimization and enhanced coverage with high data rate mobility. They feature network coprocessors that offload the processing of intensive functions typically performed by DSPs. This frees up MIPs for differentiating features, such as advanced interference cancellation and management techniques that reduce noise on wireless networks. With TI's new SoCs, developers can differentiate their products and come closer than ever before to the boundary of Shannon's Law, which defines the limits of wireless data capacity. The result, according to TI, is increased spectral efficiency and higher data rates for operators and a more satisfying user experience.

For operators, simultaneous dual-mode support enables parallel execution of two standards supporting deployments such as WCDMA and LTE in a single base station. This allows them to efficiently support 3G to 4G migration and lower CAPEX/OPEX costs by eliminating the need for equipment dedicated to each standard and the need to perform physical upgrades in the field. The TCI6612 and TCI6614 SoCs are also pin and software compatible, offering manufacturers complete flexibility in designing simultaneous dual-mode and multistandard base stations supporting all major 2G, 3G and 4G systems including GSM, CDMA, WCDMA, TD-SCDMA, WiMAX, FDD-LTE and TDD-LTE.

The TCI6612 and TCI6614 SoCs will begin sampling in 3Q11.

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