A method for reading a broadcast message, comprising: receiving (S10, S20), by a network side device, a measurement information reported by a user equipment, UE; characterized by: performing (S11, S21) a scheduling synchronization negotiation for an uplink resource and a downlink resource of the UE to simultaneously limit uplink resource allocation and downlink resource allocation of the UE during a period of time when, according to the measurement information, it has been determined that the UE discovered a neighboring cell; and instructing (S11, S21), the UE to read a broadcast message of the neighboring cell after a synchronization agreement from the scheduling synchronization negotiation has been reached; wherein when a downlink scheduling unit receives a scheduling synchronization request message, the performing comprises: sending, by the downlink scheduling unit, a scheduling synchronization negotiation message to an uplink scheduling unit; obtaining, by the uplink scheduling unit, a maximum time interval at which the UE receives uplink data and a moment when uplink scheduling starts, and feeding back the maximum time interval at which the UE receives the uplink data and the moment when the uplink scheduling starts to the downlink scheduling unit; obtaining, by the downlink scheduling unit, a maximum time interval at which the UE receives downlink data and a moment when downlink scheduling starts in synchronization with the moment when the uplink scheduling starts; and according to the maximum time interval at which the UE receives the uplink data, the maximum time interval at which the UE receives the downlink data, the moment when the uplink scheduling starts, and the moment when the downlink scheduling starts, determining, by the network side device, the period of time during which uplink resource allocation and downlink resource allocation of the UE are limited simultaneously; or comprises: obtaining, by the downlink scheduling unit, a maximum time interval at which the UE receives downlink data and the moment when downlink scheduling starts, and sending the maximum time interval at which the UE receives the downlink data and the moment when the downlink scheduling starts to an uplink scheduling unit to perform a scheduling synchronization negotiation; obtaining, by the uplink scheduling unit, a maximum time interval at which the UE receives uplink data and a moment when uplink scheduling starts in synchronization with the moment when the downlink scheduling starts; and according to the maximum time interval at which the UE receives the uplink data, the maximum time interval at which the UE receives the downlink data, the moment when the uplink scheduling starts, and the moment when the downlink scheduling starts, determining, by the network side device, the period of time during which the uplink resource allocation and the downlink resource allocation of the UE are limited simultaneously. receiving (S10, S20), by a network side device, a measurement information reported by a user equipment, UE; performing (S11, S21) a scheduling synchronization negotiation for an uplink resource and a downlink resource of the UE to simultaneously limit uplink resource allocation and downlink resource allocation of the UE during a period of time when, according to the measurement information, it has been determined that the UE discovered a neighboring cell; and instructing (S11, S21), the UE to read a broadcast message of the neighboring cell after a synchronization agreement from the scheduling synchronization negotiation has been reached; sending, by the downlink scheduling unit, a scheduling synchronization negotiation message to an uplink scheduling unit; obtaining, by the uplink scheduling unit, a maximum time interval at which the UE receives uplink data and a moment when uplink scheduling starts, and feeding back the maximum time interval at which the UE receives the uplink data and the moment when the uplink scheduling starts to the downlink scheduling unit; obtaining, by the downlink scheduling unit, a maximum time interval at which the UE receives downlink data and a moment when downlink scheduling starts in synchronization with the moment when the uplink scheduling starts; and according to the maximum time interval at which the UE receives the uplink data, the maximum time interval at which the UE receives the downlink data, the moment when the uplink scheduling starts, and the moment when the downlink scheduling starts, determining, by the network side device, the period of time during which uplink resource allocation and downlink resource allocation of the UE are limited simultaneously; obtaining, by the downlink scheduling unit, a maximum time interval at which the UE receives downlink data and the moment when downlink scheduling starts, and sending the maximum time interval at which the UE receives the downlink data and the moment when the downlink scheduling starts to an uplink scheduling unit to perform a scheduling synchronization negotiation; obtaining, by the uplink scheduling unit, a maximum time interval at which the UE receives uplink data and a moment when uplink scheduling starts in synchronization with the moment when the downlink scheduling starts; and according to the maximum time interval at which the UE receives the uplink data, the maximum time interval at which the UE receives the downlink data, the moment when the uplink scheduling starts, and the moment when the downlink scheduling starts, determining, by the network side device, the period of time during which the uplink resource allocation and the downlink resource allocation of the UE are limited simultaneously.