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. 09, 1999
Filed:
Feb. 26, 1997
Hideaki Shimada, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
The object of the present invention is to provide a time division multiple access radio data communication method wherein a radio time slot can be utilized effectively. In order to carry out data communication between data terminal equipment 1a connected to base station equipment 1 and a plurality of predetermined data terminal equipment 10a, 11a, 12a connected to those out station equipment 10, 11, 12 which face base station equipment 1, common radio time slot TS0 is allocated fixedly, and the plurality of predetermined data terminal equipment 10a, 11a, 12a send out request to send signals a0, a1, a2 at timings which do not overlap with each other. Then, out station equipment 10, 11, 12 which receive request to send signals a0, a1, a2 sent out from data terminal equipment 10a, 11a, 12a send back, when they are ready to send out data signals to base station equipment 1 using common radio time slot TS0 allocated thereto, clear to send signals b0, b1, b2 to data terminal equipment 10a, 11a, 12a which have sent out request to send signals a0, a1, a2, whereafter data terminal equipment 10a, 11a, 12a which receive clear to send signals b0, b1, b2 sent back from out station equipment 10, 11, 12 send out data signals to out station equipment 10, 11, 12.