In wireless communications, channel state information (CSI) is the known channel properties of a communication link. This information describes how a signal propagates from the transmitter to the receiver and represents the combined effect of, for example, scattering, fading, and power decay with distance.
In wireless communications, channel condition information (CCI) is the known channel characteristics of a communication link. This information describes how a signal propagates from the transmitter to the receiver and represents the combined effect of, for instance, scattering, fading, and power loss with distance.