公开(公告)号：MY174964A

公开(公告)日：2020-05-29

申请号：MYPI2015000278

申请日：2013-08-02

Applicant: ERICSSON TELEFON AB L M

Inventor： FRENNE MATTHIAS ,  ERIKSSON ERIK ,  SORRENTINO STEFANO

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 (16) receives a downlink subframe including a downlink control channel from the cellular communications network (10). The wireless device (16) 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 (10) 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.