The method of transmitting an uplink demodulation reference signal, apparatus and system

The present invention provides a transmission method, apparatus and system for uplink demodulation reference signal species. It relates to the field of communication; resolved uplink demodulation reference signal in the frequency resource overhead is too large. The method comprising: a base station configured for the user terminal transmits an uplink demodulation reference signal (DMRS) required resources or pattern (pattern) or set of parameters, the set of parameters or resources or pattern comprising: a time domain position, the position of the frequency domain, the sub- configuration or frame period, a jump mode; the base station control information through a downlink bit field or the higher layer signaling or uplink resource transmission pattern or set of parameters required for DMRS transmission or indicated to the user terminal. The present invention provides a technical solution suitable for the LTE system, uplink transmission mechanism DMRS low-frequency resource overhead.