Invention Grant
- Patent Title: Performance for a multiple antenna beamforming cellular network
- Patent Title (中): 多天线波束成形蜂窝网络的性能
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Application No.: US12989749Application Date: 2009-04-28
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Publication No.: US08391797B2Publication Date: 2013-03-05
- Inventor: Lai King Tee , Yi Song , Neng Wang
- Applicant: Lai King Tee , Yi Song , Neng Wang
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agency: Meyertons, Hood, Kivlin, Kowert & Goetzel, P.C.
- International Application: PCT/US2009/002585 WO 20090428
- International Announcement: WO2009/134357 WO 20091105
- Main IPC: H04B1/00
- IPC: H04B1/00 ; H04B15/00

Abstract:
The present invention provides for an improved application of signal strength weightings in a SDMA sectorized cellular network. The improved signal strength weightings application is conducted through the improved selection of weightings from a new codebook subset or by the selection of weightings from a larger codebook subset. In a further embodiment, an antenna beam index or bit map can be used to select the best beam(s) in a SDMA sectorized cellular network. In another embodiment, a field or factor in an uplink or downlink transmission packet can designate which directional transmission beam is best suited for the transmission or when the directional transmission beam should be activated.
Public/Granted literature
- US20110039543A1 Performance for a Multiple Antenna Beamforming Cellular Network Public/Granted day:2011-02-17
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