Invention Grant
- Patent Title: Quasi co-located antenna ports for channel estimation
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Application No.: US14954161Application Date: 2015-11-30
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Publication No.: US09750008B2Publication Date: 2017-08-29
- Inventor: Mattias Frenne , Erik Eriksson , Stefano Sorrentino
- Applicant: Telefonaktiebolaget L M Ericsson (publ)
- Applicant Address: SE Stockholm
- Assignee: Telefonaktiebolaget L M Ericsson (publ)
- Current Assignee: Telefonaktiebolaget L M Ericsson (publ)
- Current Assignee Address: SE Stockholm
- Agency: Withrow & Terranova, PLLC
- Main IPC: H04W72/04
- IPC: H04W72/04 ; H04L5/00 ; H04L25/02 ; H04W84/04

Abstract:
Systems and methods are disclosed for estimating one or more channel properties of a downlink from a cellular communications network based on quasi co-located antenna ports with respect to the one or more channel properties. In one embodiment, a wireless device receives a downlink subframe including a downlink control channel from the cellular communications network. The wireless device estimates one or more large-scale channel properties for an antenna port of interest in the downlink control channel based on a subset of reference signals that correspond to antenna ports in the cellular communications network that are quasi co-located with the antenna port of interest with respect to the one or more large-scale channel properties. As a result of using the quasi co-located antenna ports, estimation of the one or more large-scale channel properties is substantially improved.
Public/Granted literature
- US20160088596A1 QUASI CO-LOCATED ANTENNA PORTS FOR CHANNEL ESTIMATION Public/Granted day:2016-03-24
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