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.

Date of Patent:
Apr. 18, 2006

Filed:

Apr. 23, 2004
Applicants:

William N. Shores, Phoenix, AZ (US);

Nandakishore A. Albal, Scottsdale, AZ (US);

Louis C. Depalma, Gilbert, AZ (US);

Thomas P. Emmons, Jr., Mesa, AZ (US);

Derek A. Oxley, Chandler, AZ (US);

Inventors:

William N. Shores, Phoenix, AZ (US);

Nandakishore A. Albal, Scottsdale, AZ (US);

Louis C. Depalma, Gilbert, AZ (US);

Thomas P. Emmons, Jr., Mesa, AZ (US);

Derek A. Oxley, Chandler, AZ (US);

Assignee:

Motorola, Inc., Schaumburg, IL (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 12/66 (2006.01); H04B 7/216 (2006.01); H04B 7/20 (2006.01); H04B 7/15 (2006.01); G06F 15/16 (2006.01);
U.S. Cl.
CPC ...
Abstract

For a network server () communicating with a wireless unit () via a Session Initiation Protocol, a retransmission method () first sets a timer based upon a time likely for a mobile unit to respond (). Then the network server waits for a response (). When the timer set for the kind of mobile unit being used expires (), a retransmit of the original SIP request takes place (). Optionally, modes for waiting may include a linear mode () and an exponential mode ().


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