Orthogonal resource reuse with SDMA beams

Details Orthogonal resource reuse with SDMA beams Orthogonal resource reuse with SDMA beams

2007-04-19

2011-10-11

Ajibade Akonai, Olumide T (Department: 2617)

Telecommunications

Radiotelephone system

Zoned or cellular telephone system

C455S450000, C455S452100, C455S452200, C455S446000, C455S562100, C370S328000, C370S329000, C370S330000, C370S335000, C370S342000, C370S341000, C370S343000, C370S203000, C370S208000

Reexamination Certificate

active

08036669

ABSTRACT:
A wireless communication system can implement beamforming across multiple omni-directional antennas to create beams at different spatial directions. The communication system can arrange the beams in sets, with each set arranged to provide substantially complete coverage over a predetermined coverage area. The communication system can arrange the multiple SDMA beam sets to support substantially complementary coverage areas, such that a main beam from a first set provides coverage to a weak coverage area of the second beam set. The wireless communication system assigns or otherwise allocates substantially orthogonal resources to each of the beam sets. The wireless communication system allocates resources to a communication link using a combination of beam sets and substantially orthogonal resources in order to provide improved coverage without a corresponding increase in interference.

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International Search Report—PCT/US07/067149—International Search Authority, European Patent Office—Sep. 24, 2007.
Written Opinion—PCT/US07/067149—International Search Authority, European Patent Office—Sep. 24, 2007.
International Preliminary Report on Patentability—PCT/US07/067149—The International Bureau of WIPO, Geneva, Switzerland—Oct. 22, 2008.

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