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:
May. 29, 2012
Filed:
Aug. 18, 2008
Yoichi Kushioka, Tokyo, JP;
Yoichi Kushioka, Tokyo, JP;
Hitachi Kokusai Electric Inc., Tokyo, JP;
Abstract
A communications device for generating a Zadoff-Chu sequence includes a storage unit storing real and imaginary part values of exp{−j·(2π/N)·(m/2)} for the Zadoff-Chu sequence of the sequence length N, wherein m is an integer (0≦m<(N+1)/2); a parameter acquisition unit acquiring a sequence number u, data number k, cyclic shift amount Δ and cyclic shift number Ncs; a phase position detecting unit detecting a phase position of the Zadoff-Chu sequence with acquired parameters; and a sequence determination unit determining m to read a real and an imaginary part value in the storage unit based on the phase position and determining a plus/minus sign of each of the real and the imaginary part value. The device further includes a sequence acquisition unit acquiring the Zadoff-Chu sequence by using the real and the imaginary part values according to m determined by the sequence determination unit and the signs thereof determined.