Title:
COMMUNICATION SYSTEM AND METHOD, BASE STATION, AND USER TERMINAL
Document Type and Number:
WIPO Patent Application WO/2016/067319
Kind Code:
A1
Abstract:
Disclosed is a method in a mobile communication system comprising a base station communicating with at least one user terminal via a radio link, wherein the base station is adapted to create a precoding matrix for applying to data transmitted to the user terminal by using a channel estimate determined from Uplink Reference Signal transmitted from the user terminal to the base station, the method comprising: the base station notifying to the user terminal the precoding matrix, and the user terminal estimating and reporting a Signal to Interference pluses Noise Ratio (SINR) for each data layer conditioned on the notified precoding matrix.
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Inventors:
PITAKDUMRONGKIJA BOONSARN (JP)
ISHII NAOTO (JP)
ISHII NAOTO (JP)
Application Number:
PCT/JP2014/005470
Publication Date:
May 06, 2016
Filing Date:
October 29, 2014
Export Citation:
Assignee:
NEC CORP (JP)
International Classes:
H04L25/03; H04B7/04; H04L1/00
Foreign References:
| US20080096488A1 | 2008-04-24 | |||
| CA2662598A1 | 2008-03-27 | |||
| US20140219379A1 | 2014-08-07 |
Other References:
HAARDT M ET AL: "Zero-Forcing Methods for Downlink Spatial Multiplexing in Multiuser MIMO Channels", IEEE TRANSACTIONS ON SIGNAL PROCESSING, IEEE SERVICE CENTER, NEW YORK, NY, US, vol. 52, no. 2, 1 February 2004 (2004-02-01), pages 461 - 471, XP011105731, ISSN: 1053-587X, DOI: 10.1109/TSP.2003.821107
Attorney, Agent or Firm:
KATO, Asamichi (20-12 Shin-Yokohama 3-chome, Kohoku-ku, Yokohama-sh, Kanagawa 33, JP)
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