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1. (WO2018022519) APPARATUS AND METHOD FOR ESTIMATING DOWNLINK CHANNEL CONDITIONS AT CELL-EDGE

Pub. No.:    WO/2018/022519    International Application No.:    PCT/US2017/043550
Publication Date: Fri Feb 02 00:59:59 CET 2018 International Filing Date: Tue Jul 25 01:59:59 CEST 2017
IPC: H04L 5/00
Applicants: QUALCOMM INCORPORATED
Inventors: VITTHALADEVUNI, Pavan Kumar
NAMGOONG, June
SORIAGA, Joseph Binamira
Title: APPARATUS AND METHOD FOR ESTIMATING DOWNLINK CHANNEL CONDITIONS AT CELL-EDGE
Abstract:
Aspects of the present disclosure provide methods and apparatuses that can utilize different subframe structures to estimate a channel during wireless communication in different scenarios. When a scheduling entity determines that a scheduled entity is near or at a cell edge, the scheduled entity may use a special subframe to estimate the channel utilizing more resources of the subframe, for example data signals. The special subframe can facilitate channel estimation by using a less complex (or lower rank) modulation and coding scheme (MCS) for the data symbols than a normal subframe for other scheduled entities not located near the cell edge.