FIELD: radio engineering, communication.
SUBSTANCE: invention relates to communication. Present invention discloses a method of configuring transmission power of a demodulation reference signal (DMRS) which comprises a step of configuring the ratio between transmission power of a DMRS at each layer in a resource element (RE) and transmission power of data at a corresponding layer in a RE to be a constant value. Furthermore, the present invention discloses an apparatus for configuring transmission power for the DMRS. The present invention greatly improves the rate of correct data frame decoding, and improves decoding performance. The present invention enables the network side to avoid the need to notify user equipment (UE) on the corresponding relationship between transmission power of DMRS at each layer and transmission power of data at the corresponding layer, which reduces the overhead of the control signalling at the network side. Since the corresponding relationship between transmission power of DMRS at each layer and transmission power of data at the corresponding layer is configured in the UE, the UE can implement channel estimation without waiting for the notification from the network side, which improves the channel estimation efficiency.
EFFECT: providing a method of configuring transmission power of a demodulation reference signal.
10 cl, 4 dwg, 2 tbl
