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. 13, 2007
Filed:
Feb. 01, 2002
Masamichi Kasa, Fukuoka, JP;
Setsuo Abiru, Kawasaki, JP;
Toshinori Koyanagi, Kawasaki, JP;
Toshiyuki Sakai, Kawasaki, JP;
Kazuhiro Uchida, Fukuoka, JP;
Masamichi Kasa, Fukuoka, JP;
Setsuo Abiru, Kawasaki, JP;
Toshinori Koyanagi, Kawasaki, JP;
Toshiyuki Sakai, Kawasaki, JP;
Kazuhiro Uchida, Fukuoka, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
In a communication system comprising a network unit and a plurality of subscriber units connected to the network unit, the network unit generates a message in which validity of transmission grant information is set for the subscriber units, and suspends a transmission of polling information to allocate a transmission grant to the subscriber units by using the transmission grant information for a fixed time in consideration of a processing time of the subscriber units from a time when the message has been completely transmitted. Also, when a disconnection state of an inputted cell from the subscriber units is detected, the network unit may suspend an input disconnection detecting operation for a fixed time from a time when the message and the polling information have been completely transmitted. Furthermore, a switchover of an input disconnection detection/transmission grant information may be suspended by mutually exchanging messages.