Wireless Coexistence (.PDF Download)

This struggle is intensified as these various standards are often occupying the same spectrum. There are stiff regulations for non-interference and transmit power by agencies like the Federal Communications Commission (FCC) in the USA. This has led to creative solutions for balancing power, frequency hopping, spread spectrum techniques, time/frequency division multiplexing, and many others. To get an idea of just a few of the competing wireless standards, the reference “Wireless Coexistence” displays many of the common standards that are used today, and a few that we may see in the near future. In the reference, a color-coded chart provides a spatially accurate frequency mapping of the different operator bands of these common standards. A straight-edge can be used to see what different operator bands overlap. A rough and fine detail frequency mapping is provided along with tables for each of the operator bands’ band number, uplink/downlink frequency, and bandwidth. All the frequencies represented in the tables are the center frequencies of the operator bands.