Multiplex communications – Communication over free space – Combining or distributing information via time channels
Reexamination Certificate
2011-08-30
2011-08-30
Afshar, Kamran (Department: 2617)
Multiplex communications
Communication over free space
Combining or distributing information via time channels
C370S331000, C370S332000, C370S324000, C455S067110, C455S423000, C455S502000
Reexamination Certificate
active
08009660
ABSTRACT:
A multi-carrier cellular wireless network (400) employs base stations (404) that transmit two different groups of pilot subcarriers: (1) cell-specific pilot subcarriers, which are used by a receiver to extract information unique to each individual cell (402), and (2) common pilots subcarriers, which are designed to possess a set of characteristics common to all the base stations (404) of the system. The design criteria and transmission formats of the cell-specific and common pilot subcarriers are specified to enable a receiver to perform different system functions. The methods and processes can be extended to other systems, such as those with multiple antennas in an individual sector and those where some subcarriers bear common network/system information.
REFERENCES:
patent: 6480558 (2002-11-01), Ottosson et al.
patent: 6515960 (2003-02-01), Usui et al.
patent: 6567383 (2003-05-01), Bohnke
patent: 6643281 (2003-11-01), Ryan
patent: 6731673 (2004-05-01), Kotov et al.
patent: 6741578 (2004-05-01), Moon et al.
patent: 6922388 (2005-07-01), Laroia et al.
patent: 7039001 (2006-05-01), Krishnan et al.
patent: 7062002 (2006-06-01), Michel et al.
patent: 7443829 (2008-10-01), Rizvi et al.
patent: 7567624 (2009-07-01), Schmidl et al.
patent: 7738437 (2010-06-01), Ma et al.
patent: 7907592 (2011-03-01), Han et al.
patent: 2003/0081538 (2003-05-01), Walton et al.
patent: 2004/0085946 (2004-05-01), Morita et al.
patent: 2005/0243774 (2005-11-01), Choi et al.
patent: 2006/0245409 (2006-11-01), Korpela et al.
Huang Haiming
Li Kemin
Li Xiaodong
Lo Titus
Afshar Kamran
Neocific, Inc.
Perkins Coie LLP
Sarwar Babar
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