METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING PREAMBLE BASED REFERENCE SIGNAL

摘要

The present disclosure relates to a 5G or pre-5G communication system for supporting a higher data rate after a 4G communication system such as LTE. The present application discloses a method and apparatus for transmitting and receiving a preamble-based reference signal. A method for transmitting a preamble-based reference signal comprises: generating a main preamble sequence; generating an auxiliary preamble sequence, wherein on a predefined resource, a synthesized signal of a main preamble sequence and an auxiliary preamble sequence is identical to a predefined preamble-based reference signal; and transmitting the main preamble sequence and the auxiliary preamble sequence based on the filter bank multi-carrier modulation. According to an embodiment of the present application, the main preamble sequence and the auxiliary preamble sequence are appropriately designed such that a synthesized signal on a predefined resource is equal to a predefined base reference signal. In this way, a predefined reference signal can be obtained at the receiving end by using the inherent interference of FBMC modulation, thereby making efficient channel estimation.