A method for transmitting data, the method comprises: an eNB sending a scheduling Radio Network Temporary Identifier, RNTI, for scheduling a resource to a user equipment; and the eNB creating a context for the user equipment, scheduling an uplink resource and/or a downlink resource for the user equipment over a Physical Downlink Control Channel, PDCCH, scrambled by the scheduling RNTI according to the context, receiving uplink data transmitted from the user equipment over the scheduled uplink resource and transmitting downlink data to the user equipment over the scheduled downlink resource; wherein the eNB sending the scheduling RNTI for scheduling a resource to the user equipment comprises: the eNB sending a paging message carrying the scheduling RNTI to the user equipment upon reception of a paging message from a core network device; or the eNB sending the scheduling RNTI for scheduling a resource to the user equipment comprises: the eNB sending a paging message carrying a dedicated preamble to the user equipment upon reception of a paging message from a core network device, wherein the dedicated preamble is different from a preamble for a random access of the user equipment; and the eNB receiving a message 1 for requesting a random access sent from the user equipment, wherein the message 1 carries the dedicated preamble, and sending a message 2 for responding to the random access request to the user equipment, wherein the message 2 carries the scheduling RNTI. an eNB sending a scheduling Radio Network Temporary Identifier, RNTI, for scheduling a resource to a user equipment; and the eNB creating a context for the user equipment, scheduling an uplink resource and/or a downlink resource for the user equipment over a Physical Downlink Control Channel, PDCCH, scrambled by the scheduling RNTI according to the context, receiving uplink data transmitted from the user equipment over the scheduled uplink resource and transmitting downlink data to the user equipment over the scheduled downlink resource; wherein the eNB sending the scheduling RNTI for scheduling a resource to the user equipment comprises: the eNB sending a paging message carrying the scheduling RNTI to the user equipment upon reception of a paging message from a core network device; or the eNB sending the scheduling RNTI for scheduling a resource to the user equipment comprises: the eNB sending a paging message carrying a dedicated preamble to the user equipment upon reception of a paging message from a core network device, wherein the dedicated preamble is different from a preamble for a random access of the user equipment; and the eNB receiving a message 1 for requesting a random access sent from the user equipment, wherein the message 1 carries the dedicated preamble, and sending a message 2 for responding to the random access request to the user equipment, wherein the message 2 carries the scheduling RNTI. the eNB sending a paging message carrying the scheduling RNTI to the user equipment upon reception of a paging message from a core network device; or the eNB sending the scheduling RNTI for scheduling a resource to the user equipment comprises: the eNB sending a paging message carrying a dedicated preamble to the user equipment upon reception of a paging message from a core network device, wherein the dedicated preamble is different from a preamble for a random access of the user equipment; and the eNB receiving a message 1 for requesting a random access sent from the user equipment, wherein the message 1 carries the dedicated preamble, and sending a message 2 for responding to the random access request to the user equipment, wherein the message 2 carries the scheduling RNTI. the eNB sending a paging message carrying a dedicated preamble to the user equipment upon reception of a paging message from a core network device, wherein the dedicated preamble is different from a preamble for a random access of the user equipment; and the eNB receiving a message 1 for requesting a random access sent from the user equipment, wherein the message 1 carries the dedicated preamble, and sending a message 2 for responding to the random access request to the user equipment, wherein the message 2 carries the scheduling RNTI.