Performance requirements of communication base station time standards

摘要

Modern communication networks are complex. They can involve one or more central offices, controlling toll offices, mobile switching offices, land and submarine cable, television network transmission and the familiar home telephone. As a wired network, they are connected in one form or another with copper wire or coax cable. There is also the wireless network, involving microwave repeater links, cable television (CATV), satellite links, cell sites and all forms of wireless voice and data communication.