Beceem Launches Single-chip 65nm Mobile WiMAX Solution

(Top News, 2 Apr 2008)

Beceem Communications has developed what is said to be the world's first full-featured, 65nm, single-chip WiMAX Wave 2 solution, the BCSM250, which is also the first to combine a Wave 2 baseband, dual-band radio, memory and power management in a single chip. Housed in an 11x11mm package, this highly integrated solution reduces the power consumption by at least 30 percent from existing solutions while increasing peak data rates to 40Mbps, thereby setting a number of new benchmarks for the industry.

The BCSM250 is Beceem's 4th generation of WiMAX chips and the first WiMAX solution to combine a baseband processor, dual-band 2GHz and 3GHz radio, memory, power management unit and host interfaces based on 65nm technology in a single chip. This high level of integration includes previously external components such as a USB 2.0 PHY and power management circuits, which reduce the total number of components required for a complete Mobile WiMAX subsystem by up to 60 percent. In addition, Beceem has partnered with third-party Front End Module (FEM) manufacturers to further simplify the design and layout of any remaining, external RF-related components.

In addition to system-level improvements, the BCSM250 also incorporates advances in WiMAX baseband technology. Built on top of its full Maximum Likelihood (ML) MIMO decoder, the BCSM250 baseband also incorporates other notable advances such as improved interference cancellation, advanced channel estimation and improved logarithmic likelihood-ratio (LLR) selection.

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