Bit and power allocation method for distributed antenna system

The invention discloses a bit and power allocation method and a bit and power allocation device for a distributed antenna system. The method comprises the following steps that: A, a base station receives large-scale fading information corresponding to each sending antenna, which is sent by a terminal; and B, bit and power allocation is carried out according to the large-scale fading information. The method and the device of the invention furthest reduce power consumption on the premise of guaranteeing the average service quality, such as throughput and average bit error rate performance.