7. Suppress cell scheduling

The basic principle of cellular radiotelephony is the reuse of the same frequency sets from place to place in the same network, according to a reuse pattern. In traditional systems, a given frequency cannot be used in every cell, unless it creates an unbearable level of interference. Frequencies must be reused according to a pre-established pattern, taking into account the realities on the ground. Cellular planning is a long and complex operation. While analog networks used 12-frequency patterns, GSM networks allow tighter patterns, such as the 9 or 3 x 3 pattern, in which the same frequencies are reused every third group of three co-located cells (every third trisector site). In short, one-twelfth of the frequencies allocated to a network can be used in a given cell of an analog system, one-ninth of the same frequencies in a GSM network.

In a CDMA system, all users...