Invention Grant
- Patent Title: Quasi co-located antenna ports for channel estimation
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Application No.: US17028538Application Date: 2020-09-22
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Publication No.: US11937249B2Publication Date: 2024-03-19
- Inventor: Mattias Frenne , Stefano Sorrentino , Erik Eriksson
- 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
- Main IPC: H04L25/02
- IPC: H04L25/02 ; H04L5/00 ; H04W72/04 ; 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 user equipment receives a downlink subframe including a downlink control channel from the cellular communications network. The user equipment 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
- US20210007091A1 QUASI CO-LOCATED ANTENNA PORTS FOR CHANNEL ESTIMATION Public/Granted day:2021-01-07
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