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. 07, 2002
Filed:
Jul. 02, 1999
Sanyo Electric Co., Ltd., Osaka, JP;
Abstract
The present invention is aimed at providing a base station for mobile communication systems which is capable of communicating with more mobile station than in the prior art while keeping high communication quality and restraining a rise in production cost. The base station of the present invention is used in mobile communication systems in which diversity is conducted. Such a base station includes an RF unit for generating a plurality of high-frequency transmission signals, an antenna selecting unit for switching connection of the transmission signal output of the RF unit from one antenna to another, a cross switch for switching the data transmission route between straight connection and cross connection by inputting transmission data from TDMA processing units and interchangeably to transmitting units and of the RF unit, and a control unit for controlling the antenna selecting unit so that the transmission signals will be connected to different antennas, respectively.