Title:
METHOD AND USER EQUIPMENT FOR PERFORMING ATTACH REQUEST PROCEDURE
Document Type and Number:
WIPO Patent Application WO/2019/135581
Kind Code:
A1
Abstract:
One disclosure of the present specification provides a method in which a user equipment (UE) performs an attach request procedure. The method comprises a step of transmitting an attach request message to a second system when an intersystem change from a first system to the second system is required in a state where a back-off timer associated with a data network name (DNN) based congestion control is running. The attach request message may include information on a packet data unit (PDU) session used by the UE in the first system. The information on the PDU session may be used so as not for the attach request message to be rejected by a second network, even if the back-off timer associated with the DNN-based congestion control is running.
Inventors:
PARK SANGMIN (KR)
KIM LAEYOUNG (KR)
KIM TAEHUN (KR)
KIM JAEHYUN (KR)
RYU JINSOOK (KR)
YOUN MYUNGJUNE (KR)
KIM LAEYOUNG (KR)
KIM TAEHUN (KR)
KIM JAEHYUN (KR)
RYU JINSOOK (KR)
YOUN MYUNGJUNE (KR)
Application Number:
PCT/KR2018/016990
Publication Date:
July 11, 2019
Filing Date:
December 31, 2018
Export Citation:
Assignee:
LG ELECTRONICS INC (KR)
International Classes:
H04W28/02; H04W36/00; H04W36/14; H04W36/22; H04W60/04; H04W88/06; H04W92/02
Foreign References:
| KR20160052569A | 2016-05-12 |
Other References:
NOKIA ET AL.: "TS 23.501: Editorial Corrections and Alignment", SA WG2 MEETING #123, S2-178184 ,, 3 November 2017 (2017-11-03), Ljubljana, Slovenia, XP051360785
ERICSSON ET AL.: "Congestion Control", SA WG2 MEETING #124, S2-179300 ,, 4 December 2017 (2017-12-04), Reno, Nevada, XP051365845
ERICSSON: "Congestion Control", SA WG2 MEETING #124, S2-178863, 21 November 2017 (2017-11-21), Reno, Nevada, XP051379858
CT1: "LS on Session Management Congestion Control", SA WG2 MEETING #125, S2-180026, 19 December 2017 (2017-12-19), Gothenburg, Sweden, XP051380235
ERICSSON ET AL.: "Congestion Control", SA WG2 MEETING #124, S2-179300 ,, 4 December 2017 (2017-12-04), Reno, Nevada, XP051365845
ERICSSON: "Congestion Control", SA WG2 MEETING #124, S2-178863, 21 November 2017 (2017-11-21), Reno, Nevada, XP051379858
CT1: "LS on Session Management Congestion Control", SA WG2 MEETING #125, S2-180026, 19 December 2017 (2017-12-19), Gothenburg, Sweden, XP051380235
Attorney, Agent or Firm:
ENVISION PATENT & LAW FIRM (KR)
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