DUAL SYSTEM ACCESS WITH DIFFERENT FRAME RATES

Methods, systems, and apparatuses, including computer programs encoded on computer-readable media, are configured for spreading, using a first data spreader, first data into a first data frame using a first spreading factor. A first transmitter transmits the first data frame to a diplexer on a first frequency. A second data spreader spreads second data into a second data frame using a second spreading factor. A second transmitter transmits the second data frame to a diplexer on a second frequency different than the second frequency. A diplexer combines the first data frame and the second data frame. A first receiver receives on the first frequency, a third data frame from the diplexer. A second receiver receives on the second frequency a fourth data frame from the diplexer.