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:
Mar. 01, 2011
Filed:
Dec. 10, 2007
Etsuhiro Okamoto, Osaka, JP;
Yukihiko Okumura, Yokohama, JP;
Tetsuro Kitayama, Katsushika, JP;
NTT DoCoMo, Inc., Chiyoda-ku, JP;
Abstract
Even when transmitted waves of multiple systems become approximately out of phase while diversity transmission is performed in a W-CDMA wireless system, synchronization establishment determination is more adequately performed. In a W-CDMA wireless system, even if it is determined in a normal synchronization establishment determination that synchronization cannot be established, when a phase difference in a common channel of a 0-system and a 1-system is within a certain range and a reception quality of the common channel (or a dedicated channel) has reached a certain level, it is determined that the synchronization can be established. Therefore, even when the transmitted waves of the multiple systems become approximately out of phase while the diversity transmission is performed in the W-CDMA wireless system, the synchronization establishment determination can be more adequately performed depending on whether or not communication is possible in an actual state.