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:
Aug. 12, 2014

Filed:

Aug. 22, 2012
Applicants:

Young-hak Choi, Seoul, KR;

Pyeong-hwan Wee, Seoul, KR;

Sang-jun Lee, Yongin-si, KR;

Jae-yeong Kwon, Suwon-si, KR;

Sang-ho Lee, Suwon-si, KR;

Inventors:

Young-Hak Choi, Seoul, KR;

Pyeong-Hwan Wee, Seoul, KR;

Sang-Jun Lee, Yongin-si, KR;

Jae-Yeong Kwon, Suwon-si, KR;

Sang-Ho Lee, Suwon-si, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04Q 7/20 (2006.01); H04W 36/00 (2009.01); H04W 36/30 (2009.01);
U.S. Cl.
CPC ...
H04W 36/0072 (2013.01); H04W 36/30 (2013.01);
Abstract

An operating method, a base station, and terminal of a cell of a first communication system for a handover between the first communication system and a second communication system are provided. The method includes, when a terminal initiates a handover between the first communication system and the second communication system, transmitting, by the base station, a message, requesting to measure a signal level of a downlink, to the terminal, when a signal level measured by the terminal falls below a preset threshold, requesting, by the base station, a handover to the second communication system over a core network, receiving, by the base station, a message, including radio channel parameters the that is required when the terminal accesses to the second communication system, from the second communication system, and forwarding, by the base station, the message, including the radio channel parameters of the second communication system, to the terminal.


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