Invention Grant
- Patent Title: Feedback based on codebook subset
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Application No.: US16110853Application Date: 2018-08-23
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Publication No.: US10277294B2Publication Date: 2019-04-30
- Inventor: Lai King Tee , Yi Song , Neng Wang
- Applicant: Apple Inc.
- 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.
- Main IPC: H04B7/0456
- IPC: H04B7/0456 ; H04B7/06 ; H04L25/03 ; H04B7/0452

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
- US20180367194A1 Feedback Based on Codebook Subset Public/Granted day:2018-12-20
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