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:
Oct. 01, 2019

Filed:

Oct. 07, 2014
Applicant:

Nec Corporation, Tokyo, JP;

Inventor:

Masato Shindo, Tokyo, JP;

Assignee:

NEC Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 12/28 (2006.01); H04W 24/02 (2009.01); H04W 36/14 (2009.01); H04W 36/18 (2009.01); H04W 36/00 (2009.01); H04W 88/08 (2009.01);
U.S. Cl.
CPC ...
H04W 24/02 (2013.01); H04W 36/0083 (2013.01); H04W 36/14 (2013.01); H04W 36/18 (2013.01); H04W 36/0055 (2013.01); H04W 88/08 (2013.01);
Abstract

A control apparatus () is configured to automatically update a neighbour relation table () of a source cell (A). The control apparatus () is further configured to add, to the neighbour relation table (), a new entry () indicating a neighbour-cell relation from the source cell (A) to another cell (B) different from both the source cell (A) and a target cell (C) of a handover from the source cell (A), in response to receiving a first message (S) that is issued when a radio terminal () that has experienced a failure involving disconnection of a radio link connection in the source cell (A) or in the target cell (C) attempts to re-establish the radio link connection to the other cell (B). This contributes to updating the neighbour-cell relations in response to detection of a handover failure.


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