DMRS (demodulation reference signal) as well as sending method and device thereof

The invention discloses a DMRS (demodulation reference signal) as well as a sending method and device thereof, wherein the sending method of the DMRS comprises: UE (user equipment) receives user individual signaling configuration information sent by a base station and used for the UE to determine the DMRS; the UE uses the user individual signaling configuration information to determine the DMRS; and the UE sends the DMRS. According to the invention, the quality accuracy of performing channel estimation on an uplink CoMP (coordinated multi-point) user by a receiving terminal is improved.