| abstract |
An uplink demodulation reference signal (DMRS) sending method comprises: a base station configuring a resource, a pattern or a parameter set required for sending an uplink DMRS for a user equipment, wherein the resource, the pattern or the parameter set comprises a time-domain position, a frequency-domain position, a subframe configuration or a cycle, and a hopping mode; and the base station sending or giving an instruction about the resource, the pattern or the parameter set required for sending the uplink DMRS to the user equipment through a bit domain of downlink control information or a high-level signaling. |