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:
Jan. 14, 2014
Filed:
Nov. 21, 2011
Tsuyoshi Tamaki, Machida, JP;
Tsuyoshi Tamaki, Machida, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
In a distributed antenna system in which plural antennas are dispersed spatially, a base station apparatuscollects the terminal throughput of the uplink and downlink communication, the number of simultaneous communication terminals, and the information on a radio propagation channel from a distributed antenna to a terminal antenna, and estimates the throughput in each communication mode from the number of simultaneous communication terminals and the radio propagation channel information, selects a communication mode by comparing the estimated throughput with a request value, connects the distributed antenna and the base station apparatusin an antenna connection pattern in the selected communication mode, and switches the communication mode between the base station device and the terminal to continue the communication, when the terminal throughput is below the request value, or above the request value plus a certain threshold value.