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. 27, 2013
Filed:
Sep. 17, 2009
Isao Hirakawa, Osaka, JP;
Yongming Liang, Osaka, JP;
Waho OH, Osaka, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
The present invention is to enable reduction of constraint brought by generation of ID codes of reference signals to be used for cooperative reception and the allocation of the reference signals when radio communication is carried out between a plurality of base station apparatuses and a terminal unit. Terminal units UEto UEare terminal units existing in the cellular zone of a base station apparatus BSand are performing communication with base station apparatus UE. When terminal unit UEis located at the edge of cell and its reception characteristic degrades, another base station apparatus, specifically, base station apparatus BSalso performs cooperative transmission while terminal unit UEperforms cooperative reception. In this case, in order to demodulate the signal from base station apparatus BS, an ID code of a reference signal that is different from the reference signal the terminal unit uses to demodulate the signal from a solo base station apparatus is used as the ID code of the reference signal that is transmitted from base station apparatus BSand specific to the terminal unit.