Data packet transmission method and device
First Claim
1. A data packet transmission method, comprising:
- receiving, by a current base station that serves a user equipment (UE), instruction information of a small data packet from a core network device in which the small data packet is stored, the instruction information of the small data packet for instructing a base station that serves the UE to transmit the small data packet to the UE;
sending, by the current base station that serves the UE, a message to the UE after receiving the instruction information of the small data packet;
receiving, by a target base station that serves the UE after the base station that serves the UE changes from the current base station that serves the UE to the target base station that serves the UE, a radio resource control message sent from the UE that includes the instruction information of the small data packet;
sending, by the target base station that serves the UE after receiving the radio resource control message sent from the UE, a paging message to the core network device according to the instruction information of the small data packet;
receiving, by the target base station, the small data packet from the core network device; and
sending, by the target base station that serves the UE, the small data packet to the UE,wherein the target base station that serves the UE sends the small data packet to the UE by sending a radio resource control (RRC) connection establishment message to the UE, wherein the RRC connection establishment message comprises the small data packet.
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Abstract
Embodiments of the present invention provide a data packet transmission method and a device, which relate to the communications field, so as to reduce a storage burden on a base station in a data transmission process. The method includes: acquiring, by a base station that serves a UE, instruction information of a small data packet; and after receiving a radio resource control message sent from the UE, acquiring, by the base station that serves the UE, the small data packet from a core network device according to the instruction information of the small data packet, and sending the small data packet to the UE. The embodiments of the present invention are used for data packet transmission.
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Citations
15 Claims
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1. A data packet transmission method, comprising:
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receiving, by a current base station that serves a user equipment (UE), instruction information of a small data packet from a core network device in which the small data packet is stored, the instruction information of the small data packet for instructing a base station that serves the UE to transmit the small data packet to the UE; sending, by the current base station that serves the UE, a message to the UE after receiving the instruction information of the small data packet; receiving, by a target base station that serves the UE after the base station that serves the UE changes from the current base station that serves the UE to the target base station that serves the UE, a radio resource control message sent from the UE that includes the instruction information of the small data packet; sending, by the target base station that serves the UE after receiving the radio resource control message sent from the UE, a paging message to the core network device according to the instruction information of the small data packet; receiving, by the target base station, the small data packet from the core network device; and sending, by the target base station that serves the UE, the small data packet to the UE, wherein the target base station that serves the UE sends the small data packet to the UE by sending a radio resource control (RRC) connection establishment message to the UE, wherein the RRC connection establishment message comprises the small data packet. - View Dependent Claims (2, 3)
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4. A data packet transmission method, comprising:
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acquiring, by a core network device, a small data packet; sending, by the core network device while the small data packet is stored in the core network device, instruction information of the small data packet to a current base station that serves a user equipment (UE); receiving, by the core network device, a paging message according to the instruction information of the small data packet from a target base station that serves the UE after a base station that serves the UE changes from the current base station that serves the UE to the target base station that serves the UE, the paging message indicating that a radio resource control message sent from the UE that includes the instruction information of the small data packet has been received by the target base station that serves the UE; and sending, by the core network device, after the paging message is received from the target base station that serves the UE, the small data packet to the target base station that serves the UE, the small data packet enabling the target base station that serves the UE to, after receiving the radio resource control message sent from the UE, send the small data packet to the UE, wherein the instruction information of the small data packet instructs the base station that serves the UE to transmit the small data packet to the UE; and sending, by the core network device, a first paging message to the current base station that serves the UE, wherein the first paging message comprises the instruction information of the small data packet, the first paging message enabling the current base station that serves the UE to, after receiving a radio resource control (RRC) connection establishment request message sent from the UE, receive the small data packet from the core network device according to the instruction information of the small data packet and send a radio resource control (RRC) connection establishment message to the UE, wherein the RRC connection establishment message comprises the small data packet. - View Dependent Claims (5, 6)
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7. A data packet transmission method, comprising:
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receiving, by a user equipment (UE) while a small data packet is stored on a core network device and when a base station that serves the UE is a current base station that serves the UE, instruction information of the small data packet sent from the current base station that serves the UE, the instruction information of the small data packet for instructing the base station that serves the UE to transmit the small data packet to the UE; sending, by the UE, after the base station that serves the UE changes from the current base station that serves the UE to a target base station that serves the UE, the instruction information of the small data packet to the target base station that serves the UE for receiving the small data packet from the core network device after receiving, by the core network device, a paging message according to the instruction information of the small data packet; and receiving, by the UE, the small data packet sent from the target base station that serves the UE after the small data packet is received from the core network device by the target base station that serves the UE in response to the paging message according to the instruction information of the small data packet, wherein; sending, by the UE, the instruction information of the small data packet to the target base station for receiving the small data packet from the core network device according to the instruction information of the small data packet comprises; sending, by the UE, a radio resource control (RRC) connection establishment request message to the target base station, wherein the RRC connection establishment request message comprises the instruction information of the small data packet, the RRC connection establishment message enabling the target base station to send a information of the small data packet and receive the small data packet that is sent from the core network device according to the paging response message; and receiving, by the UE, the small data packet sent from the target base station after the small data packet is received from the core network device by the target base station comprises; receiving, by the UE, an RRC connection establishment message sent from the target base station, wherein the RRC connection establishment message comprises the small data packet. - View Dependent Claims (8)
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9. A system, comprising:
a current base station that serves a user equipment (UE), the current base station configured to; receive instruction information of a small data packet from a core network device in which the small data packet is stored, the instruction information of the small data packet for instructing a base station that serves the UE to transmit the small data packet to the UE, and send a message to the UE after receiving the instruction information of the small data packet; and a target base station that serves the UE, the target base station configured to; receive, after the base station that serves the UE changes from the current base station that serves the UE to the target base station that serves the UE, a radio resource control message sent from the UE that includes the instruction information of the small data packet, after the radio resource control message sent from the UE is received, send a paging message to the core network device according to the instruction information of the small data packet, receive the small data packet from the core network device; and send the small data packet to the UE, wherein the target base station that serves the UE is further configured to send a radio resource control (RRC) connection establishment message to the UE, Wherein the RRC connection establishment message comprises the small data packet. - View Dependent Claims (10, 11, 12)
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13. A core network device, comprising:
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a processor, configured to; acquire a small data packet, and receive a paging message according to instruction information of the small data packet from a target base station that serves a user equipment (UE) after a base station that serves the UE changes from a current base station that serves the UE to the target base station that serves the UE, the paging message indicating that a radio resource control message sent from the UE that includes the instruction information of the small data packet has been received by the target base station that serves the UE; and a transmitter, configured to; send instruction information of the small data packet to the current base station that serves the UE while the small data packet is stored in the core network device, and send the small data packet to the target base station that serves the UE after the paging message is received from the target base station that serves the UE the small data packet enabling the target base station that serves the UE to, after receiving the radio resource control message sent from the UE, send the small data packet to the UE, wherein the instruction information of the small data packet instructs the base station that serves the UE to transmit the small data packet to the UE, wherein the transmitter is further configured to send a first paging message to the current base station that serves the UE, wherein the first paging message comprises the instruction information of the small data packet, the first paging message enabling the current base station that serves the UE to, after receiving a radio resource control (RRC) connection establishment request message sent from the UE, receive the small data packet from the core network device according to the instruction information of the small data packet and send a radio resource control (RRC) connection establishment message to the UE, wherein the RRC connection establishment message comprises the small data packet.
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14. A user equipment (UE), comprising:
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a processor, configured to receive while a small data packet is stored on a core network device, instruction information of the small data packet and sent from a current base station that serves the UE, the instruction information of the small data packet for instructing a base station that serves the UE to transmit the small data packet to the UE; a transmitter, configured to, after the current base station that serves the UE changes to a target base station that serves the UE, send the instruction information of the small data packet and acquired by the processor to the target base station that serves the UE, the instruction information of the small data packet enabling the target base station that serves the UE to receive the small data packet from the core network device after receiving, by the core network device, a paging message according to the instruction information of the small data packet; and wherein the processor is further configured to receive the small data packet sent from the target base station that serves the UE, which was received from the core network device in response to the paging message according to the instruction information of the small data packet, wherein; the transmitter is further configured to send a radio resource control (RRC) connection establishment request message to the target base station that serves the UE, wherein the RRC connection establishment request message comprises the instruction information of the small data packet, the RRC connection establishment message enabling the target base station that serves the UE to send a paging response message to the core network device according to the instruction information of the small data packet and receive the small data packet that is sent from the core network device according to the paging response message, and the processor is further configured to receive a radio resource control (RRC) connection establishment message sent from the target base station that serves the UE, wherein the RRC connection establishment message comprises the small data packet. - View Dependent Claims (15)
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Specification