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:
Dec. 01, 2009
Filed:
Feb. 21, 2007
Masanori Taira, Yokohama, JP;
Kenzaburo Fujishima, Niiza, JP;
Koki Uwano, Fujisawa, JP;
Hitachi Communication Technologies, Ltd., Tokyo, JP;
Abstract
A terminalmeasures pilot signals transmitted in directional (beam) patterns from an adjacent cell and an own cell, and estimates reception qualities with the presence (high)/absence (low) of the interference from the adjacent cell. The terminalrequests data rate request values (DRC, DRC) corresponding to the reception qualities with the presence/absence of the interference to the base station. The base stationshares beam direction schedule with an adjacent cell base station, and confirms the presence/absence of interference to the terminalfor each slot. In accordance with the presence/absence of the interference, the base stationselects a suitable one of the two values of the data rates requested from the terminal, and modulates the data and transmits it.