Patent ID: 8320861
Filing Date: 2012-11-27
Classification: H04B

Abstract:
1. A channel prediction system comprising: a channel estimation unit configured to calculate a channel estimation value indicating a channel characteristic between a transmitter side of a radio signal and a receiver side of the radio signal, based on the radio signal received by the receiver side; a channel prediction unit configured to calculate, using the channel estimation value, a channel prediction value that is a prediction value of the channel characteristic at a time point after a time point at which the channel estimation value is calculated; an estimation error value calculator configured to calculate an estimation error value indicating a difference between the channel estimation value calculated at a first time point by the channel estimation unit and the channel characteristic at the first time point; and a prediction error value calculator configured to calculate a prediction error value indicating a difference between the channel prediction value calculated for the first time point by the channel prediction unit at a second time point before the first time point and the channel characteristic at the first time point, wherein when the estimation error value is larger than the prediction error value, the channel prediction unit calculates the channel prediction value for a third time point after the first time point, preferentially using the channel prediction value calculated for the first time point over the channel estimation value calculated at the first time point.