An information processing method, including: transmitting (103, 203, 303, 603, 705), by a Macro Base Station, a first instruction to M Small Cell Base Stations, wherein the M Small Cell Base Stations are within a predefined distance to a mobile terminal based on position information of the mobile terminal, to cause the M Small Cell Base Stations to transmit a first signal with a first transmission power, the first signal being a Discovery Reference Signal; receiving (104, 204, 304, 604, 706), by the Macro Base Station, from the mobile terminal a first measurement result on the first signal, and from each of the M Small Cell Base Stations, a second measurement result on the first signal, wherein the second measurement result is measured by each of the M Small Cell Base Stations on the first signal transmitted by other neighboring Small Cell Base Stations among the M Small Cell Base stations; transmitting (206, 305, 707), by the Macro Base Station, a second instruction to N Small Cell Base Stations, wherein the N Small Cell Base Stations satisfy a first condition based on the first measurement result and the second measurement result, to cause the N Small Cell Base Stations to transmit a second signal with the first transmission power, the second signal being a Cell-Specific Reference Signal, wherein M and N are positive integers, and N is not greater than M; and receiving (106, 207, 307, 709), by the Macro Base Station, from the mobile terminal a third measurement result on the second signal, and informing the mobile terminal, based on the third measurement result, that a Small Cell Base Station from among the N Small Cell Base Stations is selected as service equipment for the mobile terminal. transmitting (103, 203, 303, 603, 705), by a Macro Base Station, a first instruction to M Small Cell Base Stations, wherein the M Small Cell Base Stations are within a predefined distance to a mobile terminal based on position information of the mobile terminal, to cause the M Small Cell Base Stations to transmit a first signal with a first transmission power, the first signal being a Discovery Reference Signal; receiving (104, 204, 304, 604, 706), by the Macro Base Station, from the mobile terminal a first measurement result on the first signal, and from each of the M Small Cell Base Stations, a second measurement result on the first signal, wherein the second measurement result is measured by each of the M Small Cell Base Stations on the first signal transmitted by other neighboring Small Cell Base Stations among the M Small Cell Base stations; transmitting (206, 305, 707), by the Macro Base Station, a second instruction to N Small Cell Base Stations, wherein the N Small Cell Base Stations satisfy a first condition based on the first measurement result and the second measurement result, to cause the N Small Cell Base Stations to transmit a second signal with the first transmission power, the second signal being a Cell-Specific Reference Signal, wherein M and N are positive integers, and N is not greater than M; and receiving (106, 207, 307, 709), by the Macro Base Station, from the mobile terminal a third measurement result on the second signal, and informing the mobile terminal, based on the third measurement result, that a Small Cell Base Station from among the N Small Cell Base Stations is selected as service equipment for the mobile terminal.