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:
Oct. 11, 2011
Filed:
May. 15, 2008
Hemanth Balaji Pawar, Herndon, VA (US);
Esmail Dinan, Herndon, VA (US);
Daniel Vivanco, Herndon, VA (US);
Vijay Rudraraju, Herndon, VA (US);
Howard Anderson, Ashburn, VA (US);
Hemanth Balaji Pawar, Herndon, VA (US);
Esmail Dinan, Herndon, VA (US);
Daniel Vivanco, Herndon, VA (US);
Vijay Rudraraju, Herndon, VA (US);
Howard Anderson, Ashburn, VA (US);
Clear Wireless LLC, Kirkland, WA (US);
Abstract
Disclosed herein is a method and system for WiMAX ranging using OVSF ranging codes. Specifically, in an exemplary embodiment, a WiMAX communication system that is configured to provide service at a plurality of quality of service (QoS) levels, may be configured to (a) broadcast a QoS level message in a downlink sub-frame, wherein the QoS level message comprises one or more spreading factor codes, and wherein each spreading factor code indicates a spreading factor for a particular QoS level, (b) receive a ranging request from a device, wherein the ranging request comprises an orthogonal variable spreading factor (OVSF) code, wherein the OVSF code was selected according to the one or more spreading factor codes, (c) determine a spreading factor of the OVSF code in the received ranging request, and (d) use the spreading factor as a basis for selecting a QoS level at which to provide service to the device.