Methods and apparatus for random access in multi-carrier...

Details Methods and apparatus for random access in multi-carrier... Methods and apparatus for random access in multi-carrier...

2011-08-09

2011-08-09

Nguyen, Duc (Department: 2618)

Telecommunications

Transmitter and receiver at separate stations

Distortion, noise, or other interference prevention,...

C455S522000, C370S329000

Reexamination Certificate

active

07995967

ABSTRACT:
Methods and apparatus in a multi-carrier cellular wireless network (303, 304, 305, 320) with random access improve receiving reliability and reduce interference of uplink signals of a random access, while improving the detection performance of a base station receiver (310, 320) by employing specifically configured ranging signals.

REFERENCES:
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patent: 5991308 (1999-11-01), Fuhrmann et al.
patent: 6519449 (2003-02-01), Zhang et al.
patent: 2010/0111017 (2010-05-01), Um et al.
International Search Report and Written Opinion; International Patent Application No. PCT/US05/08169; Filed Mar. 9, 2005; Applicant: Waltical Solutions, Inc.; Mailed Jun. 9, 2005; 9 pages.

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