Method and device for adjusting block error rate

The invention discloses a method for adjusting block error ratio. The method is used for realizing the adjustment on initial error block ratio, and further improves the veracity of the adjustment in a modulation coding mode. The method comprises the following steps of determining the QoS (Quality of Service) index of the current service of the user; judging whether the target initial block error rate (BLER) needs to be adjusted or not according to the determined QoS index; if so, carrying out the adjustment; and if not, keeping the current target initial BLER unchanged. The invention also discloses a device for implementing the method.