What is CRS (Common reference signal)?

The common reference signal is utilized to decode data transmission. CRS transmission is utilizing a comparable arrangement of beams, comparable time, and comparable CRS antenna port. CRS is utilized in the downlink, CRS is sent by the eNB on exceptional REs for each antenna port, sparsely dispensed in frequency and time. In conventional receivers, CRS interference is canceled by using channel estimates corresponding to neighboring cells, which are obtained from the received signal.