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:
Nov. 02, 2010
Filed:
Jul. 17, 2007
Takahiro Kobayashi, Kawasaki, JP;
Takahiro Kobayashi, Kawasaki, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
A radio communication apparatus which communicates with a radio terminal device, the apparatus belonging to a first group, the device performing handoff between apparatuses which belong to the first group, the apparatus includes unit selecting one block from frequency blocks obtained by dividing a specified frequency band, the frequency blocks being continuous on a frequency axis, unit detecting an unused channel among channels contained in the selected block, unit detecting an in-use channel among the channels when the unused channel is detected, unit determining whether a second group to which a device which is using the detected in-use channel belongs is the same as the first group, and unit assigning the detected unused channel as a channel for communication with the radio terminal device when the in-use channel fails to be detected or the determination unit determines that the second group is the same as the first group.