Methods and apparatuses for transmission and reception of demodulation reference signal

An apparatus for information reception, comprising:

• a receiver configured to receive data information and a demodulation reference signal transmitted by a transmitting device by at least using a time-domain resource;
• wherein, the demodulation reference signal is determined by the transmitting device, and the number of symbols contained in the time-domain resource is less than or equal to the number of symbols contained in a slot or a subframe;
• wherein the number of symbols occupied by the demodulation reference signal and positions where the symbols are located in the time-domain resource are determined according to a first parameter, a second parameter and a third parameter;
• and
• where, the first parameter is the number of a part of symbols in the time-domain resource, the second parameter is a number parameter of the demodulation reference signal, and the third parameter denotes offset taking symbol as a unit.

A communication system, comprising:

• a transmitting device, comprising an apparatus for information transmission comprising
• processor circuitry configured to determine a demodulation reference signal in a time-domain resource, wherein the number of symbols contained in the time-domain resource is less than or equal to the number of symbols contained in a slot or a subframe, wherein the number of symbols are occupied by the demodulation reference signal and positions where the symbols are located in the time-domain resource are determined according to a first parameter, a second parameter and a third parameter, where, the first parameter is the number of a part of symbols in the time-domain resource, the second parameter is a number parameter of the demodulation reference signal, and the third parameter denotes offset taking symbol as a unit;
• and
• a transmitter configured to transmit data information and the determined demodulation reference signal to a receiving device by at least using the time-domain resource;
• and
• a receiving device, comprising
• a receiver configured to receive data information and the demodulation reference signal transmitted by the transmitting device by at least using the time-domain resource.