Method and device for confirming signal-to-noise ratio of signals in physical uplink shared channel

The invention relates to the field of communication, in particular to a method and device for confirming a PUSCH SNR (Signal-to-Noise Ratio of Physical Uplink Shared Channel), used for improving the test accuracy of the PUSCH SNR and avoiding bringing overmuch operation load for a system. The method comprises the following steps of: representing the total power of PUSCH signals of N sampling points as N times of a fixed power value of a single point corresponding to a quadrantal central point based on symbol-level data corresponding to the quadrantal central point of a constellation diagram used by an uplink subframe; and calculating the PUSCH SNR of the uplink subframe according to the total power of the PUSCH signals and the further obtained total power of noise; thus, measured values of the PUSCH SNRs of respective uplink subframes are substantially consistent, and the test accuracy of the PUSCH SNR of the respective subframes is effectively ensured; moreover, power control characteristics of UE (User Equipment) are ensured; and meanwhile, the algorithm implementation difficulty cannot be increased, thus, the system is prevented from overmuch operation load.