A mobility management method, performed by a network side equipment, comprising: receiving, via a base station, an uplink reference signal periodically transmitted by a user equipment moving at high speed; characterized in that the method comprises: generating network indication information according to variation information of the uplink reference signal, the network indication information at least including area information of one or more to-be-selected cells adjacent to a current access base station cell of the user equipment and operation time for instructing the user equipment to perform a corresponding operation within designated time, and the variation information comprising frequency offset information of the uplink RS signal; delivering, via the base station, the network indication information to the user equipment, enabling the user equipment to perform the corresponding operation according to the network indication information and transmit operation information, wherein the corresponding operation comprises an operation of measuring a regional signal or an operation of reselecting a cell; and performing mobility management on the user equipment according to the operation information transmitted by the user equipment, wherein the generating network indication information according to variation information of the uplink reference signal comprises: acquiring the frequency offset information of the uplink reference signal; determining a movement speed of the user equipment according to the frequency offset information; determining target area information according to the movement speed and a current position of the user equipment; and generating the network indication information according to the target area information. receiving, via a base station, an uplink reference signal periodically transmitted by a user equipment moving at high speed; characterized in that the method comprises: generating network indication information according to variation information of the uplink reference signal, the network indication information at least including area information of one or more to-be-selected cells adjacent to a current access base station cell of the user equipment and operation time for instructing the user equipment to perform a corresponding operation within designated time, and the variation information comprising frequency offset information of the uplink RS signal; delivering, via the base station, the network indication information to the user equipment, enabling the user equipment to perform the corresponding operation according to the network indication information and transmit operation information, wherein the corresponding operation comprises an operation of measuring a regional signal or an operation of reselecting a cell; and performing mobility management on the user equipment according to the operation information transmitted by the user equipment, wherein the generating network indication information according to variation information of the uplink reference signal comprises: acquiring the frequency offset information of the uplink reference signal; determining a movement speed of the user equipment according to the frequency offset information; determining target area information according to the movement speed and a current position of the user equipment; and generating the network indication information according to the target area information. generating network indication information according to variation information of the uplink reference signal, the network indication information at least including area information of one or more to-be-selected cells adjacent to a current access base station cell of the user equipment and operation time for instructing the user equipment to perform a corresponding operation within designated time, and the variation information comprising frequency offset information of the uplink RS signal; delivering, via the base station, the network indication information to the user equipment, enabling the user equipment to perform the corresponding operation according to the network indication information and transmit operation information, wherein the corresponding operation comprises an operation of measuring a regional signal or an operation of reselecting a cell; and performing mobility management on the user equipment according to the operation information transmitted by the user equipment, wherein the generating network indication information according to variation information of the uplink reference signal comprises: acquiring the frequency offset information of the uplink reference signal; determining a movement speed of the user equipment according to the frequency offset information; determining target area information according to the movement speed and a current position of the user equipment; and generating the network indication information according to the target area information. acquiring the frequency offset information of the uplink reference signal; determining a movement speed of the user equipment according to the frequency offset information; determining target area information according to the movement speed and a current position of the user equipment; and generating the network indication information according to the target area information.