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. 02, 2010
Filed:
Jul. 11, 2006
Takehiro Nakamura, Yokosuka, JP;
Junichiro Hagiwara, Yokohama, JP;
Etsuhiro Nakano, Yamato, JP;
Koji Ohno, Yokohama, JP;
Seizo Onoe, Yokohama, JP;
Akihiro Higashi, Yokosuka, JP;
Motoshi Tamura, Yokosuka, JP;
Masatomo Nakano, Yokohama, JP;
Hiroshi Kawakami, Yokosuka, JP;
Hiroki Morikawa, Musashino, JP;
Takehiro Nakamura, Yokosuka, JP;
Junichiro Hagiwara, Yokohama, JP;
Etsuhiro Nakano, Yamato, JP;
Koji Ohno, Yokohama, JP;
Seizo Onoe, Yokohama, JP;
Akihiro Higashi, Yokosuka, JP;
Motoshi Tamura, Yokosuka, JP;
Masatomo Nakano, Yokohama, JP;
Hiroshi Kawakami, Yokosuka, JP;
Hiroki Morikawa, Musashino, JP;
NTT DoCoMo, Inc., Tokyo, JP;
Abstract
A base station including a transmitting and receiving amplifier for amplifying CDMA signals exchanged with a mobile station; a radio stage connected to the transmitting and receiving amplifier for carrying out D/A conversion of a transmitted signal that undergoes baseband spreading, followed by quadrature modulation, and for carrying out quasi-coherent detection of a received signal, followed by A/D conversion; a baseband signal processor connected with the radio stage for carrying out baseband signal processing of the transmitted signal and the received signal; a transmission interface connected with the baseband signal processor for implementing interface with external channels; and a base station controller for carrying out control such as management of radio channels and establishment and release of the radio channels. The base station communicates with the external channels by mapping logical channels into physical channels. The CDMA signals are spread using a short code and a long code.