Invention Grant
- Patent Title: Method for dynamic CSI feedback
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Application No.: US16153944Application Date: 2018-10-08
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Publication No.: US10448274B2Publication Date: 2019-10-15
- Inventor: Mattias Frenne , Johan Furuskog , George Jöngren , Robert M. Harrison
- Applicant: Telefonaktiebolaget LM Ericsson (publ)
- Applicant Address: SE Stockholm
- Assignee: Telefonaktiebolaget LM Ericsson (publ)
- Current Assignee: Telefonaktiebolaget LM Ericsson (publ)
- Current Assignee Address: SE Stockholm
- Agency: Withrow & Terranova, PLLC
- Main IPC: H04W24/10
- IPC: H04W24/10 ; H04W76/27 ; H04L5/00 ; H04B7/06 ; H04W72/04 ; H04W72/08 ; H04L1/00

Abstract:
Systems and methods for providing Channel State Information (CSI) feedback in a cellular communications network are disclosed. In some embodiments, a base station of a cellular communications network disables inter-subframe channel interpolation of CSI-RS estimates across subframes at the wireless device and receives one or more CSI reports from the wireless device that are generated by the wireless device with inter-subframe channel interpolation of CSI-RS estimates across subframes disabled in response to the base station disabling inter-subframe channel interpolation of CSI-RS estimates across subframes at the wireless device. In this manner, CSI feedback is improved particularly in embodiments in which the base station transmits a beamformed CSI-RS resource(s) and reuses the same CSI-RS resource(s) for different beams over time.
Public/Granted literature
- US20190045386A1 METHOD FOR DYNAMIC CSI FEEDBACK Public/Granted day:2019-02-07
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