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:
Feb. 28, 2006
Filed:
Dec. 21, 1999
Toshiro Suzuki, Yokohama, JP;
Takashi Yano, Kokubunji, JP;
Takaki Uta, Kokubunji, JP;
Katsuhiko Tsunehara, Kokubunji, JP;
Hisato Iwai, Tokyo, JP;
Toshiro Suzuki, Yokohama, JP;
Takashi Yano, Kokubunji, JP;
Takaki Uta, Kokubunji, JP;
Katsuhiko Tsunehara, Kokubunji, JP;
Hisato Iwai, Tokyo, JP;
Hitachi, Ltd., Tokyo, JP;
KDDI Corporation, Tokyo, JP;
Abstract
On the side of a mobile station, interference of a perch channel with call control information or a traffic channel is reduced, realizing stable communication. In a method of CDMA communication in which communication is made through the traffic channel for transmitting user data and the perch channel for transmitting a spreading code used for demodulation of the user data, the traffic channel has a call control channel subjected to the time division multiplex, and that call control channel and a part of the perch channel, which is non-orthogonal to the call control channel, are arranged not to overlap with each other in a time base.