Fujitsu Microelectronics America (FMA) unveiled its highly integrated WiMAX system-on-chip that complies with the IEEE802.16-2004 standard. and is designed for both base station and subscriber station implementation in licensed or license-exempt bands below 11GHz.
Fujitsu’s chipset uses an OFDM 256 (Orthogonal Frequency Division Multiplexing) PHY that supports channels from 1.75MHz up to 20MHz, and can operate in TDD or FDD modes, with support for all available channel bandwidths. A programmable frequency selection generates the sample clock for any desired bandwidth. When applying 64QAM modulation in a 20MHz channel and using all 192 sub-carriers, the SoC’s data rate can go up to 75Mbps. Uplink sub-channelization is also supported.
The Fujitsu WiMAX SoC incorporates sophisticated processing power, including a main RISC engine that implements the 802.16 upper-layer MAC, scheduler, drivers, protocol stacks, and user application software. Also on board is a secondary RISC/DSP that functions as a co-processor, which executes lower-layer MAC functions, offloading processing from the upper-layer MAC and enhancing total performance. A multi-channel DMA controller handles high-speed transactions among agents on a high-performance bus.
Fujitsu said its WiMAX SoC also incorporates radio control and all required analog circuits, along with a comprehensive set of integrated peripheral functions. To ensure security, the chipset uses DES/AES/CCM encryption/decryption engines for the 802.16 MAC privacy sub-layer. The chip also includes a memory controller, an Ethernet engine for interfacing to the network, and high-performance DAC/ADC for flexible baseband interface.
Pricing for the WiMax chipset begins at $45 each in 1,000-unit volumes. A complete reference design, including all required software and hardware for a cost-effective system solution, is also available. http://us.fujitsu.com/micro/WiMAX
