Standard ECMA-368 High rate ultra wideband PHY and MAC standard

Summary

This International Standard specifies the ultra wideband (UWB) physical layer (PHY) and medium access control (MAC) sublayer for high-speed, short-range wireless networks within the 3,100-10,600 MHz spectrum, supporting data rates up to 480 Mb/s. The spectrum is divided into 14 bands, each 528 MHz wide, grouped into six band groups. It employs MultiBand Orthogonal Frequency Division Modulation (MB-OFDM) with 110 sub-carriers per band, including data, guard, and pilot carriers, along with spreading and error correction techniques for optimal performance.

The MAC sublayer facilitates mobility, allowing device groups to communicate seamlessly while merging or splitting. It uses distributed coordination and medium reservations for Quality of Service, combining Carrier Sense Multiple Access (CSMA) and Time Division Multiple Access (TDMA). The Distributed Reservation Protocol (DRP) and Prioritized Contention Access (PCA) ensure efficient and equitable bandwidth sharing. This standard is suited for high-rate, infrastructure-free communications between portable and fixed devices.