Patent ID: 8849193

Claim:
A method of transmitting telecommunications data comprising: modulating a first and a second data signal for transmitting over a telecommunications system using a modulation format; selecting transmit powers of a first terminal and a second terminal such that a predetermined power equivalent bandwidth (PEB) is achieved through an un-attenuated telecommunications channel of the telecommunications system; transmitting the first and second data signals through the telecommunications channel to a remote receiver, the first data signal being transmitted from the first terminal and the second data signal being transmitted from the second terminal; transmitting, by the remote receiver, the first data signal to the second terminal and the second data signal to the first terminal; measuring a total received signal-to-noise ratio of the first data signal received at the second terminal and a total received signal-to-noise ratio of the second data signal received at the first terminal; measuring a ratio of a signal power density of the first data signal to a signal power density of the second data signal; determining a ratio of excess uplink loss at the first terminal to excess downlink loss at the first terminal based on one or more rain model parameters and an operating frequency of the remote receiver; calculating excess uplink and downlink losses relative to uplink and downlink losses of an optimized, un-attenuated telecommunications channel; and changing a transmit power of at least one of the first and second terminals such that the predetermined PEB is maintained for the telecommunications channel when at least one of the first and second data signals experiences attenuation from one or more external environmental factors.