A system for operating a power line communication system is provided. One embodiment is comprised of a plurality of network elements, which may take the form of repeaters, bypass devices, backhaul devices, wireless backhaul devices, enhanced bypass devices, communication interface devices and others....http://www.google.com.hk/patents/US7064654?utm_source=gb-gplus-share專利 US7064654 - Power line communication system and method of operating the same
