Title:
METHOD AND APPARATUS FOR HANDLING E-RAB SWITCH PROBLEM FOR DUAL CONNECTIVITY IN WIRELESS COMMUNICATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2016/060483
Kind Code:
A1
Abstract:
A method and apparatus for handling evolved universal terrestrial radio access network (E-UTRAN) radio access bearer (E-RAB) switch failure for dual connectivity in a wireless communication system is provided. A master evolved NodeB (MeNB) in dual connectivity receives an E-RAB modification confirm message including a list of E-RABs failed to be modified from a mobility management entity (MME). The MeNB may keep old general packet ratio service (GPRS) tunneling protocol (GTP) tunnels for the failed E-RABs, and trigger a secondary eNB (SeNB) release procedure or a SeNB modification procedure for releasing the failed E-RABs. Alternatively, the MeNB may trigger an E-RAB release procedure for releasing the failed E-RABs.
Inventors:
XU JIAN (KR)
BYUN DAEWOOK (KR)
BYUN DAEWOOK (KR)
Application Number:
PCT/KR2015/010859
Publication Date:
April 21, 2016
Filing Date:
October 14, 2015
Export Citation:
Assignee:
LG ELECTRONICS INC (KR)
International Classes:
H04W36/14; H04W48/18
Domestic Patent References:
| WO2014109606A1 | 2014-07-17 |
Foreign References:
| US20140080484A1 | 2014-03-20 | |||
| US20120182912A1 | 2012-07-19 | |||
| US20140179325A1 | 2014-06-26 |
Other References:
"3GPP; TSG RAN; Evolved Universal Terrestrial Radio Access Network(E-UTRAN); S1 Application Protocol (S1 AP ) (Release 12", 3GPP TS 36.413 V12.3.0, 22 September 2014 (2014-09-22), XP050870645, Retrieved from the Internet
See also references of EP 3207740A4
See also references of EP 3207740A4
Attorney, Agent or Firm:
S&IP PATENT & LAW FIRM (Gangnam-gu, Seoul, KR)
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