New Freescale Metrocell Base Station Processor Drives Next-Generation LTE Infrastructure for the Mobile Broadband Age

by donpedro

The explosion of smart connected devices and increasing volumes of rich digital content have created a worldwide flood of mobile data, requiring OEMs and carriers to

dramatically boost network performance while controlling capital expenditure costs, increasing power efficiency and supporting 4G/LTE standards. While macrocells remain essential to the world’s wireless infrastructure systems, operators are increasingly looking to metrocells to provide ubiquitous coverage in dense urban areas and throughout large enterprises.
To help address these challenges, Freescale Semiconductor introduces the next generation of its groundbreaking QorIQ Qonverge portfolio of base station-on-chip SoCs. Designed to help operators add capacity and deliver enhanced coverage in user-dense environments, the new B3421 base station SoC integrates digital front-end (DFE) technology, which improves power amplifier (PA) efficiency and significantly reduces base station power and costs. According to ABI Research, outdoor small cells will have a year-on-year unit growth of 125 percent predicted for 2014 for a value of almost $3.6 billion.
The device’s embedded CPU cores, DSP cores, baseband accelerators and DFE technology deliver a system-on-chip solution that handles base station processing tasks from the front end all the way to the backhaul. The integrated DFE capability, coupled with industry-standard antenna interfaces, allow seamless RFIC interfacing and streamlined RF line-up optimization. Together with Power over Ethernet (PoE) capabilities to meet low power requirements, support for JESD204B, JESD207 and CPRI interfaces to support various antenna schemes, PCI Express for connectivity to WiFi chipsets, SATA for local content caching and Ethernet SGMII backhaul interfaces, the QorIQ Qonverge B3421 device is the most highly integrated metrocell base station SoC in the industry.
The B3421 device is fully optimized for concurrent LTE and WiFi operation, and supports LTE-TDD, LTE-FDD and LTE-Advanced wireless standards. Advanced 4×4 MiMO algorithms and 3GPP standard up to Release 11, advanced interference cancelling schemes, eICIC and carrier aggregation additionally improve spectral efficiency and provide future-proofing for OEMs and operators.

Freescale Semiconductor

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