Abstract
It is an object of the embodiments of the present disclosure to provide a method for transmitting a downlink packet for a UE in an idle mode which is capable of reducing a data transmission latency for a user and efficiently using network resources in a mobile communication system in which the control plane and the user plane of a gateway node are separated.
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| Not Available | 27/09/2019 | ISLD-201909-047 | SK TELECOM CO LTD |
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Technologies
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Technologies
Product
Use Cases
Services
Claim
1. A method for transmitting a downlink packet to a user equipment (UE) in an idle mode in a mobile communication system in which a gateway is separated into a user plane node and a control plane node, the method comprising:
receiving and buffering, by the user plane node, the downlink packet for the UE; transmitting, by the user plane node, a notification message of a reception of the downlink packet to the control plane node; transmitting, by the user plane node, the buffered downlink packet to the UE through a base station; and delaying, by the user plane node, the notification message of the reception of the downlink packet to the control plane node based on buffering timers.
2. The method according to claim 1,
wherein the control plane node informs information for receiving the downlink packet for the UE to the user plane node.
3. The method according to claim 1,
wherein the user plane node delays the notification message of the reception of the downlink packet to the control plane node until a preset buffering time elapses.
4. The method according to claim 3,
wherein the preset buffering time is set based on the subscription information about a user or service characteristics.
5. The method according to claim 2,
wherein the information includes at least one of an International Mobile Subscriber Identification (IMSI), an IP address of the UE and a tunnel endpoint identifier (TEID).
6. The method according to claim 1, further comprising:
transmitting, by the control plane node, the notification message of a reception of the downlink packet to a mobility management entity (MME).
7. A gateway for transmitting a downlink packet to a user equipment (UE) in an idle mode in a mobile communication system, the gateway comprising:
a control plane node; and a user plane node, wherein the user plane node receives and buffers the downlink packet for the UE, transmits a notification message of a reception of the downlink packet to the control plane node, and transmits the buffered downlink packet to the UE through a base station wherein the user plane node delays the notification message of the reception of the downlink packet to the control plane node based on buffering timers.
8. The gateway according to claim 7,
wherein the control plane node informs information for receiving the downlink packet for the UE to the user plane node.
9. The gateway according to claim 7,
wherein the user plane node delays the notification message of the reception of the downlink packet to the control plane node until a preset buffering time elapses.
10. The gateway according to claim 9,
wherein the preset buffering time is set based on the subscription information about a user or service characteristics.
11. The gateway according to claim 8,
wherein the information includes at least one of an International Mobile Subscriber Identification (IMSI), an IP address of the UE and a tunnel endpoint identifier (TEID).
12. The gateway according to claim 7,
wherein the control plane node transmits the notification message of a reception of the downlink packet to a mobility management entity (MME).
Associated Portfolios
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The information in blue was extracted from the third parties (Standard Setting Organisation, Espacenet)
The information in grey was provided by the patent holder
The information in purple was extracted from the FrandAvenue
Explicitly disclosed patent:openly and comprehensibly describes all details of the invention in the patent document.
Implicitly disclosed patent:does not explicitly state certain aspects of the invention, but still allows for these to be inferred from the information provided.
Basis patent:The core patent in a family, outlining the fundamental invention from which related patents or applications originate.
Family member:related patents or applications that share a common priority or original filing.