The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jun. 27, 2017

Filed:

Apr. 29, 2015
Applicant:

Electronics and Telecommunications Research Institute, Daejeon, KR;

Inventors:

Hyun Seo Park, Daejeon, KR;

Yong Seouk Choi, Daejeon, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04W 4/00 (2009.01); H04W 36/00 (2009.01); H04W 24/10 (2009.01); H04W 36/08 (2009.01); H04W 36/30 (2009.01);
U.S. Cl.
CPC ...
H04W 36/0055 (2013.01); H04W 24/10 (2013.01); H04W 36/08 (2013.01); H04W 36/30 (2013.01);
Abstract

A terminal starts a first timer for detecting an RLF (Radio Link Failure) when signal strength of a serving base station is lower than a reference value. The terminal triggers a handover without a TTT (Time to Trigger) for handover when signal strength of a target base station is greater than the signal strength of the serving base station by a first offset or more while the first timer is running. The terminal transmits a measurement report message regarding the signal strength of the target base station to the serving base station when a handover is triggered.


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