technology of 3GPP. NB-IoT will be spread into various business model and be expected to
grow up in future. Several types of NB-IoT receiver will be made depending on business
model. Downlink channel estimation on NB-IoT will be discussed in this paper. Average
method, interpolation and quasi interpolation method will be discussed in detail. Since many
types of method for NB-IoT channel estimation exist, comparison among channel estimation …