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:
Dec. 13, 2016

Filed:

Nov. 08, 2011
Applicants:

Tetsushi Abe, Tokyo, JP;

Satoshi Nagata, Tokyo, JP;

Nobuhiko Miki, Tokyo, JP;

Naoto Ookubo, Tokyo, JP;

Inventors:

Tetsushi Abe, Tokyo, JP;

Satoshi Nagata, Tokyo, JP;

Nobuhiko Miki, Tokyo, JP;

Naoto Ookubo, Tokyo, JP;

Assignee:

NTT DOCOMO, INC., Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04W 36/30 (2009.01); H04W 68/02 (2009.01); H04B 17/318 (2015.01); H04W 36/04 (2009.01); H04L 5/00 (2006.01); H04W 52/40 (2009.01); H04B 17/382 (2015.01);
U.S. Cl.
CPC ...
H04W 36/30 (2013.01); H04B 17/318 (2015.01); H04L 5/0096 (2013.01); H04W 68/02 (2013.01); H04B 17/382 (2015.01); H04L 5/005 (2013.01); H04L 5/0007 (2013.01); H04L 5/0053 (2013.01); H04L 5/0073 (2013.01); H04W 36/04 (2013.01); H04W 52/40 (2013.01);
Abstract

In order to transmit a paging to a user terminal with high quality, transmit a CSI-RS effectively and perform UL HARQ efficiently in HetNet, the present invention provides a radio communication method having the steps of: a micro base station which is arranged in a macro cell and forms a smaller micro cell than the macro cell, transmitting, to a user terminal, a signal having a CSI-RS subframe including a CSI-RS and a paging subframe including modification notification information indicating modification in system information and a control signal indicating not to measure a CSI-RS when the CSI-RS subframe and the paging subframe collide with each other; and the user terminal determining a CSI-RS subframe to measure the CSI-RS based on the control signal when the CSI-RS subframe and the paging subframe collide with each other.


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