METHOD FOR MONITORING UE REACHABILITY IN WIRELESS COMMUNICATION SYSTEM, AND APPARATUS THEREFOR

Title:

METHOD FOR MONITORING UE REACHABILITY IN WIRELESS COMMUNICATION SYSTEM, AND APPARATUS THEREFOR

Document Type and Number:

WIPO Patent Application WO/2016/153316

Kind Code:

A1

Abstract:

Disclosed are a method for monitoring UE reachability in a wireless communication system, and an apparatus therefor. Specifically, a method for monitoring UE reachability in a wireless communication system comprises the steps of: receiving, by a mobility management entity (MME), a monitoring request message for UE reachability including a maximum response time from a home subscriber server (HSS); detecting, by the MME, the UE reachability if it is expected that paging transmission to the UE is possible when the UE applies extended discontinuous reception (DRX); and transmitting, by the MME, an UE reachability notification to a service capability exposure function (SCEF) prior to the next paging occasion of the UE, wherein the maximum response time indicates the time for the UE to maintain a reachable state so as to reliably transfer downlink data to the UE, and the time of transmitting the UE reachability notification can be determined while taking the maximum response time into account.

Inventors:

RYU JINSOOK (KR)
KIM HYUNSOOK (KR)
KIM LAEYOUNG (KR)
KIM JAEHYUN (KR)
KIM TAEHUN (KR)

Application Number:

PCT/KR2016/003064

Publication Date:

September 29, 2016

Filing Date:

March 25, 2016

Export Citation:

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Assignee:

LG ELECTRONICS INC (KR)

International Classes:

H04W8/08; H04W52/02; H04W68/00; H04W68/02; H04W76/04

Domestic Patent References:

WO2013165168A1

2013-11-07

Foreign References:

EP2785125A1	2014-10-01
US20120115492A1	2012-05-10
US20140004890A1	2014-01-02
US20110292877A1	2011-12-01

Other References: