Exploration of the channel estimation and multi-path tracking algorithm in CDMA2000 downlink
Qing Sun · 2001
Both the algorithm and implementation of channel estimation in CDMA2000 mobile station is explored in this article,firstly an adaptive adjust algorithm of channel estimation length is given,then a multi path tracking algorithm is also given in order to track the change of multi path profile in the transient of channel state.At last,a general description of the measurement of the channel fading rate under non ideal AFC is also given in order to implement the algorithms mentioned above.These algorithms make it possible for the channel estimation module to perform an accurate estimation of the multi path coefficient based on the fast and precise tracking of multi path profile of the channel.