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. 22, 2001
Filed:
Sep. 09, 1997
Per Beming, Stockholm, SE;
Mathias Johansson, Sollentuna, SE;
Johan Lundsjö, Bromma, SE;
Christiaan Roobol, Hässelby, SE;
Abstract
In a spread spectrum communications system supporting bursty uplink and downlink data packet transmission telecommunications services, significant concerns exist as to the generation of unacceptable levels of interference resulting from plural and simultaneous data packet transmissions. To address this concern, the system selectively organizes an access schedule for mobile station uplink data packet transmissions and a delivery schedule for downlink data packet transmissions. For the uplink, the schedule is transmitted to plural mobile stations in a current frame, and identifies which one or ones of plural mobile stations are authorized to make an uplink data packet transmission in a next frame. Only those mobile stations scheduled with authorization to make an access in the next frame then transmit their data packets (or a portions thereof) to the base station during that next frame. On the downlink, a notification of intended delivery is communicated to destination mobile stations in a current frame. The system then makes downlink delivery in accordance with the schedule to the destination mobile stations in a next frame.