DATA PACKET TRANSMISSION METHOD AND DEVICE

• US 20160044479A1
• Filed: 10/23/2015
• Published: 02/11/2016
• Est. Priority Date: 04/23/2013
• Status: Active Grant

• Current Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Original Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Inventors: Zhi, Yuliang, Chen, Yanyan
• Granted Patent: US 10,516,977 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H04W 36/02 Buffering or recovering information during reselection ; Modification of the traffic flow during hand-off
• CPC Class Codes: H04W 4/20 Services signaling; Auxiliary data signalling, i.e. transmitting data via a non-traffic channel
• CPC Class Codes: H04W 4/70 Services for machine-to-machine communication [M2M] or machine type communication [MTC]
• CPC Class Codes: H04W 48/20 Selecting an access point
• CPC Class Codes: H04W 68/005 Transmission of information for alerting of incoming communication

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.

Claims

1. A data packet transmission method, comprising:

acquiring, by a base station that serves user equipment (UE), instruction information of a small data packet, wherein the instruction information of the small data packet instructs the base station that serves the UE to transmit the small data packet;

acquiring, by the base station that serves the UE after receiving a radio resource control message sent from the UE, the small data packet from a core network device according to the instruction information of the small data packet; and

sending, by the base station that serves the UE, the small data packet to the UE.

2. The method according to claim 1, wherein acquiring, by the base station that serves the UE, the instruction information of the small data packet comprises:

receiving, by the base station that serves the UE, a first paging message sent from the core network device, wherein the first paging message comprises the instruction information of the small data packet.

3. The method according to claim 1, wherein sending, by the base station that serves the UE, the small data packet to the UE comprises:

sending, by the base station that serves the UE, a radio resource control (RRC) connection establishment message to the UE, wherein the RRC connection establishment message comprises the small data packet.

4. The method according to claim 2, wherein after receiving, by the base station that serves the UE, the first paging message sent from the core network device, the method further comprising at least one of the following:

sending a second paging message to the UE, wherein the second paging message comprises a radio resource control (RRC) connection establishment waiting time, and the RRC connection establishment waiting time is used for enabling the UE to send another RRC connection establishment request message to the base station that serves the UE again when the RRC connection establishment waiting time expires before the RRC connection establishment message sent from the base station that serves the UE is received; and

sending a second paging message to the UE, wherein the second paging message comprises the instruction information of the small data packet, so that the UE sends another RRC connection establishment request message to the base station that serves the UE again when set RRC connection establishment waiting time expires before the RRC connection establishment message sent from the base station that serves the UE is received.

5. A data packet transmission method, comprising:

acquiring, by a core network device, a small data packet; and

sending, by the core network device, instruction information of the small data packet to a base station that serves a user equipment (UE), so that after receiving a radio resource control message sent from the UE, the base station that serves the UE acquires the small data packet from the core network device according to the instruction information of the small data packet and sends 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.

6. The method according to claim 5, wherein sending, by the core network device, the instruction information of the small data packet to the base station that serves the UE, so that after receiving the radio resource control message sent from the UE, the base station that serves the UE acquires the small data packet from the core network device according to the instruction information of the small data packet and sends the small data packet to the UE comprises:

sending, by the core network device, a first paging message to the base station that serves the UE, wherein the first paging message comprises the instruction information of the small data packet, so that after receiving a radio resource control (RRC) connection establishment request message sent from the UE, the base station that serves the UE acquires the small data packet from the core network device according to the instruction information of the small data packet and sends a radio resource control (RRC) connection establishment message to the UE, wherein the RRC connection establishment message comprises the small data packet.

7. The method according to claim 6, wherein the first paging message further comprises an RRC connection establishment waiting time, so that the base station that serves the UE sends a second paging message that comprises the RRC connection establishment waiting time to the UE, wherein the RRC connection establishment waiting time is used for enabling the UE to send another RRC connection establishment request message to the base station that serves the UE again when the RRC connection establishment waiting time expires before the RRC connection establishment message sent from the base station that serves the UE is received.

8. The method according to claim 6, wherein a second paging message that is sent from the base station that serves the UE to the UE comprises the instruction information of the small data packet, so that the UE sends another RRC connection establishment request message to the base station that serves the UE again when set RRC connection establishment waiting time expires before the RRC connection establishment message sent from the base station that serves the UE is received.

9. A data packet transmission method, comprising:

acquiring, by a user equipment (UE), instruction information that is of a small data packet and sent from a current base station that serves the UE, wherein the instruction information of the small data packet instructs a target base station that serves the UE to transmit the small data packet;

sending, by the UE, after the current base station that serves the UE changes to the 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 acquiring the small data packet from a core network device 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.

10. The method according to claim 9, wherein acquiring, by the UE, the instruction information that is of the small data packet and sent from the current base station that serves the UE comprises:

receiving, by the UE, a second paging message sent from the current base station that serves the UE after the current base station that serves the UE receives a first paging message sent from the core network device, wherein both the first paging message and the second paging message comprise the instruction information of the small data packet.

11. The method according to claim 9, wherein sending, by the UE, the instruction information of the small data packet to the target base station that serves the UE for acquiring 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 that serves the UE, wherein the RRC connection establishment request message comprises the instruction information of the small data packet, so that the target base station that serves the UE sends a paging response message to the core network device according to the instruction information of the small data packet and receives the small data packet that is sent from the core network device according to the paging response message;

the receiving, by the UE, the small data packet sent from the target base station that serves the UE comprises;

receiving, by the UE, an 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.

12. A base station, comprising:

a processor, configured to acquire instruction information of a small data packet, wherein the instruction information of the small data packet instructs a base station that serves a user equipment (UE) to transmit the small data packet; and

after a radio resource control message sent from the UE is received, acquire the small data packet from a core network device according to the instruction information of the small data packet; and

a transmitter, configured to send the small data packet acquired by the processor to the UE.

13. The base station according to claim 12, wherein the processor is further configured to receive a first paging message sent from the core network device, wherein the first paging message comprises the instruction information of the small data packet.

14. The base station according to claim 12, wherein the transmitter 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.

15. The base station according to claim 13, wherein the transmitter is further configured to, after the processor receives the first paging message sent from the core network device, send a second paging message to the UE, wherein the second paging message comprises an RRC connection establishment waiting time, and the RRC connection establishment waiting time is used for enabling the UE to send another RRC connection establishment request message to the base station again when the RRC connection establishment waiting time expires before the RRC connection establishment message sent from the base station is received.

16. The base station according to claim 13, wherein the transmitter is further configured to, after the processor receives the first paging message sent from the core network device, send a second paging message to the UE, wherein the second paging message comprises the instruction information of the small data packet, so that the UE sends another RRC connection establishment request message to the base station again when set RRC connection establishment waiting time expires before the RRC connection establishment message sent from the base station is received.

17. A core network device, comprising:

a processor, configured to acquire a small data packet; and

a transmitter, configured to send instruction information of the small data packet to a base station that serves a user equipment (UE), so that after receiving a radio resource control message sent from the UE, the base station that serves the UE acquires the small data packet from the core network device according to the instruction information of the small data packet and sends 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.

18. The core network device according to claim 17, wherein the transmitter is further configured to send a first paging message to the base station that serves the UE, wherein the first paging message comprises the instruction information of the small data packet, so that after receiving a radio resource control (RRC) connection establishment request message sent from the UE, the base station that serves the UE acquires the small data packet from the core network device according to the instruction information of the small data packet and sends a radio resource control (RRC) connection establishment message to the UE, wherein the RRC connection establishment message comprises the small data packet.

19. A user equipment (UE), comprising:

a processor, configured to acquire instruction information that is of a small data packet and sent from a current base station that serves the UE, wherein the instruction information of the small data packet instructs a target base station that serves the UE to transmit the small data packet;

a transmitter, configured to, after the current base station that serves the UE changes to the target base station that serves the UE, send the instruction information that is of the small data packet and acquired by the processor to the target base station that serves the UE, so that the target base station that serves the UE acquires the small data packet from a core network device 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.

20. The UE according to claim 19 wherein the processor is further configured to, after the current base station that serves the UE receives a first paging message sent from the core network device, receive a second paging message sent from the current base station that serves the UE, wherein both the first paging message and the second paging message comprise the instruction information of the small data packet.

21. The UE according to claim 19, 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, so that the target base station that serves the UE sends a paging response message to the core network device according to the instruction information of the small data packet and receives 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.