User equipment, comprising: a receiving unit, configured to receive a data scheduling request sent by a base station, wherein the data scheduling request comprises resource information allocated to scheduled data by the base station, and the resource information comprises an unlicensed spectrum resource; a determining unit, configured to determine whether a condition for transmission of the scheduled data on an unlicensed spectrum is met, wherein the scheduled data is scheduled according to the data scheduling request received by the receiving unit; and a sending unit, configured to: when a determining result of the determining unit is that the condition for transmission of the scheduled data on the unlicensed spectrum is met, send the scheduled data to the base station by using the unlicensed spectrum resource; wherein the determining unit comprises: a first obtaining subunit, configured to obtain a transmission delay required by the scheduled data, wherein the scheduled data is scheduled according to the data scheduling request received by the receiving unit; and a first determining subunit, configured to determine whether the transmission delay obtained by the first obtaining subunit is greater than or equal to a preset maximum delay, wherein if the transmission delay is greater than or equal to the preset maximum delay, the condition for transmission of the scheduled data on the unlicensed spectrum is met; or a second obtaining subunit, configured to obtain a required maximum bit rate at which the scheduled data is transmitted on a radio bearer channel carrying the scheduled data, wherein the scheduled data is scheduled according to the data scheduling request received by the receiving unit; and a second determining subunit, configured to determine whether the maximum bit rate obtained by the second obtaining subunit is less than a preset maximum bit rate, wherein if the maximum bit rate is less than the preset maximum bit rate, the condition for transmission of the scheduled data on the unlicensed spectrum is met. a receiving unit, configured to receive a data scheduling request sent by a base station, wherein the data scheduling request comprises resource information allocated to scheduled data by the base station, and the resource information comprises an unlicensed spectrum resource; a determining unit, configured to determine whether a condition for transmission of the scheduled data on an unlicensed spectrum is met, wherein the scheduled data is scheduled according to the data scheduling request received by the receiving unit; and a sending unit, configured to: when a determining result of the determining unit is that the condition for transmission of the scheduled data on the unlicensed spectrum is met, send the scheduled data to the base station by using the unlicensed spectrum resource; wherein the determining unit comprises: a first obtaining subunit, configured to obtain a transmission delay required by the scheduled data, wherein the scheduled data is scheduled according to the data scheduling request received by the receiving unit; and a first determining subunit, configured to determine whether the transmission delay obtained by the first obtaining subunit is greater than or equal to a preset maximum delay, wherein if the transmission delay is greater than or equal to the preset maximum delay, the condition for transmission of the scheduled data on the unlicensed spectrum is met; or a first obtaining subunit, configured to obtain a transmission delay required by the scheduled data, wherein the scheduled data is scheduled according to the data scheduling request received by the receiving unit; and a first determining subunit, configured to determine whether the transmission delay obtained by the first obtaining subunit is greater than or equal to a preset maximum delay, wherein if the transmission delay is greater than or equal to the preset maximum delay, the condition for transmission of the scheduled data on the unlicensed spectrum is met; or a second obtaining subunit, configured to obtain a required maximum bit rate at which the scheduled data is transmitted on a radio bearer channel carrying the scheduled data, wherein the scheduled data is scheduled according to the data scheduling request received by the receiving unit; and a second determining subunit, configured to determine whether the maximum bit rate obtained by the second obtaining subunit is less than a preset maximum bit rate, wherein if the maximum bit rate is less than the preset maximum bit rate, the condition for transmission of the scheduled data on the unlicensed spectrum is met.