370 / | HD | MULTIPLEX COMMUNICATIONS |
310 | DF | COMMUNICATION OVER FREE SPACE {10} |
328 | DF | .~ Having a plurality of contiguous regions served by respective fixed stations {2} |
329 | DF | .~.~ Channel assignment {4} |
331 | DF | .~.~.~ Hand-off control {1} |
332 | .~.~.~.~ Based upon a particular signal quality measurement {2} | |
333 | DF | .~.~.~.~.~> Signal quality determined by bit error rate |
334 | DF | .~.~.~.~.~> Using multiple antennas at a station |