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 | .~.~ Channel assignment {4} | |
330 | DF | .~.~.~> Having both time and frequency assignment |
331 | DF | .~.~.~> Hand-off control {1} |
335 | DF | .~.~.~> Combining or distributing information via code word channels using multiple access techniques (e.g., CDMA) |
336 | DF | .~.~.~> Combining or distributing information via time channels {1} |