CHANNEL AND INTERFERENCE ESTIMATION IN SINGLE-CARRIER AND MULTI-CARRIER FREQUENCY DIVISION MULTIPLE ACCESS SYSTEMS

摘要

single-carrier frequency division multiple access (SC-FDMA) in the system, the receiver transmitted symbols from a transmitter, receiving, determining a set of subbands used by the transmitter, processes the received transmission symbols for the set of subbands, obtains received pilot values for a transmitted pilot, receiving for the transmitted data to obtain the data value. The receiver may iteratively perform channel and interference estimation for the transmitter. The receiver, selecting an initial interference estimate, to derive a channel estimate based on the received pilot values and the initial interference estimate based on the received pilot values and the channel estimate to derive a new interference estimate. The receiver may repeat the derivation of the number of times for repeating the channel estimate and the interference estimate. Thereafter, the receiver performs a channel estimation and data detection and / or receiver spatial processing on the received data values based on the interference estimate.