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1. (WO2018203307) INTERFERENCE MEASUREMENTS AND CHANNEL STATE INFORMATION FEEDBACK FOR MULTI-USER MULTIPLE-IN MULTIPLE-OUT

Pub. No.:    WO/2018/203307    International Application No.:    PCT/IB2018/053133
Publication Date: Fri Nov 09 00:59:59 CET 2018 International Filing Date: Sat May 05 01:59:59 CEST 2018
IPC: H04L 5/00
H04B 7/0452
H04B 7/06
H04L 25/02
Applicants: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
Inventors: GAO, Shiwei
FAXÉR, Sebastian
FRENNE, Mattias
GRANT, Stephen
HARRISON, Robert Mark
MURUGANATHAN, Siva
Title: INTERFERENCE MEASUREMENTS AND CHANNEL STATE INFORMATION FEEDBACK FOR MULTI-USER MULTIPLE-IN MULTIPLE-OUT
Abstract:
Methods and apparatuses for channel state information (CSI) feedback in a wireless network. In one embodiment, a method includes receiving signaling including a first Non-Zero Power (NZP) CSI-reference signal (RS) configuration for channel measurement; a second NZP CSI-RS configuration; and a CSI interference measurement (CSI-IM) configuration for interference measurement. The method includes receiving a CSI feedback request and estimating the CSI based on at least the signaled first NZP CSI-RS configuration, the second NZP CSI-RS configuration, and the CSI-IM configuration.