A method of receiving system information, SI, comprising: receiving (S201), by a terminal , an SI change notification transmitted by a first network-side equipment ; and receiving (S202), by the terminal , SI transmitted by the first network-side equipment and corresponding to the SI change notification, the method is characterized in that after receiving (S201) the change notification and prior to the receiving (S202), by the terminal , the SI transmitted by the first network-side equipment and corresponding to the SI change notification, the method further comprises: receiving, by the terminal , a scheduling indication message transmitted by the first network-side equipment , wherein the scheduling indication message is configured to indicate SI that is being broadcast by the first network-side equipment ; determining, by the terminal , whether the SI that is being broadcast by the first network-side equipment which is indicated by the scheduling indication message comprises SI that is according to its own demand of the terminal , the own demand of the terminal referring to a function to be performed subsequently by the terminal ; and when the SI that is being broadcast by the first network-side equipment which is indicated by the scheduling indication message doesn't comprise the SI that is according to its own demand of the terminal , transmitting, by the terminal , a first SI request for SI corresponding to the SI change notification to the first network-side equipment . receiving (S201), by a terminal , an SI change notification transmitted by a first network-side equipment ; and receiving (S202), by the terminal , SI transmitted by the first network-side equipment and corresponding to the SI change notification, the method is characterized in that after receiving (S201) the change notification and prior to the receiving (S202), by the terminal , the SI transmitted by the first network-side equipment and corresponding to the SI change notification, the method further comprises: receiving, by the terminal , a scheduling indication message transmitted by the first network-side equipment , wherein the scheduling indication message is configured to indicate SI that is being broadcast by the first network-side equipment ; determining, by the terminal , whether the SI that is being broadcast by the first network-side equipment which is indicated by the scheduling indication message comprises SI that is according to its own demand of the terminal , the own demand of the terminal referring to a function to be performed subsequently by the terminal ; and when the SI that is being broadcast by the first network-side equipment which is indicated by the scheduling indication message doesn't comprise the SI that is according to its own demand of the terminal , transmitting, by the terminal , a first SI request for SI corresponding to the SI change notification to the first network-side equipment . receiving, by the terminal , a scheduling indication message transmitted by the first network-side equipment , wherein the scheduling indication message is configured to indicate SI that is being broadcast by the first network-side equipment ; determining, by the terminal , whether the SI that is being broadcast by the first network-side equipment which is indicated by the scheduling indication message comprises SI that is according to its own demand of the terminal , the own demand of the terminal referring to a function to be performed subsequently by the terminal ; and when the SI that is being broadcast by the first network-side equipment which is indicated by the scheduling indication message doesn't comprise the SI that is according to its own demand of the terminal , transmitting, by the terminal , a first SI request for SI corresponding to the SI change notification to the first network-side equipment . <EOS>