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.
Patent No.:
Date of Patent:
Aug. 22, 2017
Filed:
Oct. 03, 2011
Satoshi Nagata, Tokyo, JP;
Yusuke Ohwatari, Tokyo, JP;
Tetsushi Abe, Tokyo, JP;
Nobuhiko Miki, Tokyo, JP;
Satoshi Nagata, Tokyo, JP;
Yusuke Ohwatari, Tokyo, JP;
Tetsushi Abe, Tokyo, JP;
Nobuhiko Miki, Tokyo, JP;
NTT DOCOMO, INC., Tokyo, JP;
Abstract
The present invention provides a base station apparatus, a mobile terminal apparatus and a communication control method which can improve the accuracy of channel quality estimation. A communication control method includes the steps of: allocating a CSI-RS (Channel State Information-Reference Signal), which is a reference signal for downlink channel estimation, in resources for the CSI-RS that are defined for CSI-RS transmission; setting muting resources in the resources for the CSI-RS; and reporting parameters to specify the CSI-RS, including at least a transmitting subframe cycle, a subframe offset and transmission power, to a mobile terminal apparatus.