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:
Jul. 08, 2008
Filed:
Dec. 11, 2002
Applicants:
Paolo Goria, Turin, IT;
Claudio Guerrini, Turin, IT;
Nicola Pio Magnani, Turin, IT;
Inventors:
Assignee:
Telecom Italia S.p.A., Milan, IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 7/216 (2006.01);
U.S. Cl.
CPC ...
Abstract
In a code division multiple access transmission system (CDMA), codes are generated according to a tree structure organized on a plurality of layers. Each re-allocation is considered as an access request to the system by a new user and the re-allocation codes are transmitted to each involved user through the respective re-allocation messages. Re-allocation messages to users having the same spreading factor (SF), and hence the same service bit-rate (kR) are substantially sent simultaneously, in order to reduce to a minimum the time required for the re-allocation operation.