Network-assisted full duplex system energy efficiency optimization method and system

The invention provides a network-assisted full duplex system energy efficiency optimization method and system. The method comprises the following steps: acquiring a channel vector set between uplink user equipment, downlink user equipment and uplink and downlink remote radio frequency heads; based on the channel vector set, constructing a joint energy collection and transmission optimization model which takes system energy efficiency maximization as a target and takes user service quality, forward transmission constraint, energy collection requirements and transmitter transmitting power as constraint conditions; determining an optimal working mode of uplink user equipment and downlink user equipment by adopting an energy acquisition and information receiving antenna selection algorithm; and under the optimal working mode, performing optimal value solving on the joint energy collection and transmission optimization model to obtain a system energy efficiency maximization target result. According to the method,