Multiplex communications – Communication over free space – Combining or distributing information via code word channels...
Reexamination Certificate
2007-08-07
2007-08-07
Marcelo, Melvin (Department: 2616)
Multiplex communications
Communication over free space
Combining or distributing information via code word channels...
C370S475000
Reexamination Certificate
active
10225833
ABSTRACT:
According to some embodiments of the present invention, a reverse link traffic channel code used by a terminal accessing a CDMA wireless communications system is controlled responsive to determining whether the terminal has a duplicate Electronic Serial Number (ESN). In some embodiments, for example, an alternative ESN may be sent to the terminal having the duplicate ESN for use in generating the reverse link traffic channel code. In other embodiments, a time shift may be applied in generating the reverse traffic channel code, such as by time-shifting the reverse link traffic channel code or a long code used to generate the reverse link traffic channel code. In still other embodiments, an alternative long code mask, such as a private long code mask used for a voice privacy feature, may be used responsive to detection of a duplicate ESN. The present invention may be embodied as methods of operating wireless communications systems and/or terminals, wireless communications apparatus such as network components and terminals, and computer program products including program code configured to execute in a wireless communications apparatus.
REFERENCES:
patent: 2004/0242222 (2004-12-01), An et al.
patent: 2004/0259596 (2004-12-01), Rajkotia et al.
patent: 2006/0135161 (2006-06-01), Jiang et al.
patent: 2006/0154646 (2006-07-01), Tung
patent: WO 96/22639 (1996-07-01), None
patent: WO 99/49597 (1999-09-01), None
patent: WO 99/59361 (1999-11-01), None
Wei Wang et al., ‘Performance Analysis on Wireless Resource Management of ESN Exhaustion’, Communications and Information Technology, Oct. 2005, vol. 2, pp. 1520-1523.
“Physical Layer Standard for cdma2000 Spread Spectrum Systems,” 3rdGeneration Partnership Project 2 “3GPP2”, 3GPP2 C.S0002-0 Version 1.0, Jul. 1999, pp. 2-97 through 2-104.
“Japanese ESN assignment and necessity of the global discussion,” KDDI Corporation, Feb. 11, 2002, 7 pages.
“A Proposal on MEID requirement,” KDDI Corporation, Apr. 15, 2002, 13 pages.
International Search Report, PCT/US03/27428, Feb. 3, 2004.
Marcelo Melvin
Myers Bigel & Sibley Sajovec, PA
Sony Ericsson Mobile Communications AB
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