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.:

US 7889663 B1

PDF
Full Text
Expired
Date of Patent:
Feb. 15, 2011

Filed:

Jul. 12, 2005
Applicants:

Charles R. Wright, Winchester, MA (US);

Fanny I. Mlinarsky, Bolton, MA (US);

John E. Ziegler, Westborough, MA (US);

Inventors:

Charles R. Wright, Winchester, MA (US);

Fanny I. Mlinarsky, Bolton, MA (US);

John E. Ziegler, Westborough, MA (US);

Assignee:

Azimuth Systems, Inc., Acton, MA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04W 28/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

Test equipment operable to evaluate handoff in wireless networks can be configured as an infrastructure test system or a client mobility test system. The infrastructure test system includes a plurality of client emulating devices and a client motion emulator for testing real access points. Each client emulating device is operable to emulate multiple individual virtual mobile devices ('virtual mobile devices'). The client motion emulator computes a mathematical representation of the modeled network and motion of virtual mobile devices in that network. The client motion emulator employs the mathematical representation to calculate path loss between virtual mobile devices and the real access points in the modeled network. The calculated path loss information is transmitted to the virtual mobile devices. Path loss of communications from a virtual mobile device to an access point is implemented via a programmable attenuator.


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Wright, Charles. (2011). Evaluation of handoff in wireless networks using emulation (U.S. Patent No. 7889663). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7889663

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