A method for configuring Discontinuous Reception, DRX, the method comprising: determining, by a first network-side device, auxiliary information for a user equipment; and sending, by the first network-side device, the auxiliary information to a second network-side device so that the second network-side device configures the user equipment with DRX according to the auxiliary information; wherein a part of bearers of the user equipment are separated onto the second network-side device; characterized in that, the auxiliary information comprises characteristic information of a service related to the bearers separated to the second network-side device; and determining, by the first network-side device, the auxiliary information for the user equipment comprises: determining, by the first network-side device, information about a past transmission time interval of packets of the service related to the bearers separated to the second network-side device, as the characteristic information; and/or determining, by the first network-side device, information about a policy of the service related to the bearers separated to the second network-side device as the characteristic information; wherein the first network-side device is a Master eNB, MeNB, and the second network-side device is a Secondary eNB, SeNB; or the first network-side device is an SeNB, and the second network-side device is an MeNB. determining, by a first network-side device, auxiliary information for a user equipment; and sending, by the first network-side device, the auxiliary information to a second network-side device so that the second network-side device configures the user equipment with DRX according to the auxiliary information; wherein a part of bearers of the user equipment are separated onto the second network-side device; characterized in that, the auxiliary information comprises characteristic information of a service related to the bearers separated to the second network-side device; and determining, by the first network-side device, the auxiliary information for the user equipment comprises: determining, by the first network-side device, information about a past transmission time interval of packets of the service related to the bearers separated to the second network-side device, as the characteristic information; and/or determining, by the first network-side device, information about a policy of the service related to the bearers separated to the second network-side device as the characteristic information; wherein the first network-side device is a Master eNB, MeNB, and the second network-side device is a Secondary eNB, SeNB; or the first network-side device is an SeNB, and the second network-side device is an MeNB. determining, by the first network-side device, information about a past transmission time interval of packets of the service related to the bearers separated to the second network-side device, as the characteristic information; and/or determining, by the first network-side device, information about a policy of the service related to the bearers separated to the second network-side device as the characteristic information; wherein the first network-side device is a Master eNB, MeNB, and the second network-side device is a Secondary eNB, SeNB; or the first network-side device is an SeNB, and the second network-side device is an MeNB.