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. 09, 2015

Filed:

Aug. 01, 2012
Applicants:

Ki-ho Lee, Gyeonggi-do, KR;

Yong-gyoo Lee, Seoul, KR;

Yung-ha Ji, Gyeonggi-do, KR;

Inventors:

Ki-Ho Lee, Gyeonggi-do, KR;

Yong-Gyoo Lee, Seoul, KR;

Yung-Ha Ji, Gyeonggi-do, KR;

Assignee:

KT CORPORATION, Gyeonggi-do, KR;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 1/00 (2006.01); H04W 36/30 (2009.01); H04W 36/24 (2009.01); H04W 36/16 (2009.01); H04W 36/14 (2009.01); H04W 88/06 (2009.01);
U.S. Cl.
CPC ...
H04W 36/30 (2013.01); H04W 36/24 (2013.01); H04W 36/16 (2013.01); H04W 36/14 (2013.01); H04W 88/06 (2013.01);
Abstract

Described embodiments provide a method of effectively selecting a target cell to hand over user equipment from a LTE network to a non-LTE network when the user equipment requests a CS service. A LTE cell may determine a CS fallback hysteresis parameter in advance. The LTE cell may receive signal quality measurements of at least two candidate non-LTE cells from the user equipment. The LTE cell may select one target cell among the at least two candidate non-LTE cells based on the CS fallback hysteresis parameter and the received signal quality measurements of the at least two candidate non-LTE cells.


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