Baseband processor

Fujitsu Microelectronics has developed a fully integrated MAC and PHY mixed-signal baseband processor for broadband wireless access applications.

This SoC device is designed to support frequencies ranging from 2 to 11 GHz in both licensed and unlicensed bands.

The processor supports all available bandwidths from 1.75 to 20 MHz. This WiMAX SoC is compliant with the IEEE 802.16-2004 WiMAX standard and can be configured to be used in both base station and subscriber station applications. The device supports adaptive modulation schemes including 64QAM, 16QAM, QPSK and BPSK. When applying 64QAM modulation in a 20 MHz channel and using all 192 subcarriers, the SoC''s data rate can go up to 75 Mbps.

Uplink subchannelisation is also supported. Performance enhancement can be realised with the dual RISC engines embedded into the SoC. The two processors not only handle the essential functions required by the WiMAX specification, but also allow additional headroom to handle user application software.