Power management method of MIMO (Multiple Input Multiple Output) network

The invention discloses a power management method of an MIMO (Multiple Input Multiple Output) network. The method is based on the mutual interference of an MIMO under a mobile system and is also called as an antenna management method. The power management method comprises the steps of: 1) obtaining minimum data rate information needed by communication from an MAC (Media Access Control) layer to ensure that the practical communication data rate is larger than limiting conditions; 2) estimating the channel capacity from information of a physical layer, wherein the estimating operation comprises of the steps of closed loop channel estimation and open loop channel estimation; 3) according to two conditions of the data rate and the channel capacity, generating an optimal power management scheme, and configuring an MIMO transceiver. According to the power management method, due to the power management, MIMO antenna states can be configured effectively, and the power consumption caused by the transmission of each bit of data through an MIMO front-end interface can be reduced, so that an MIMO antenna can be configured dynamically.