Patent ID: 8798655

Claim:
A method for configuring a transmission power of Demodulation Reference Signal (DMRS) in down transmission, comprising: configuring by the network side a ratio between transmission power of a DMRS at each layer in a DMRS Resource Element (RE) and transmission power of data at a corresponding layer in a data RE to be a constant value; the method further comprises: setting by the network side different constant values for different total layer numbers used in downlink transmission; or setting an unique constant value for different total layer numbers used in the downlink transmission; wherein the step of setting the different constant values for different total layer numbers used in the downlink transmission further comprises: setting by the network side a first constant value when the total layer number used in the downlink transmission is less than or equal to 2; and setting a second constant value when the total layer number used in the downlink transmission is greater than or equal to 3.