METHODS TO CALCULATE LINEAR COMBINATION PRE-CODERS FOR MIMO WIRELESS COMMUNICATION SYSTEMS

Title:

METHODS TO CALCULATE LINEAR COMBINATION PRE-CODERS FOR MIMO WIRELESS COMMUNICATION SYSTEMS

Document Type and Number:

WIPO Patent Application WO/2016/080743

Kind Code:

A1

Abstract:

The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). In a wireless communication system having an antenna array selectively configured to transmit channel state information reference signals (CSI-RS) using a plurality of antenna ports and basis beam vectors selected from a master beam set or retrieved from memory, a codebook enables selection of a linear combination of at least a subset of the beams and co-phases and coefficients for each selected beam, where the co-phases determine the co-phasing weights for the selected beams for a cross-polarized antenna array, and the coefficients determine the linear combination of the selected beams. Feedback contains an indication of channel state information (CSI) for the set of selected or retrieved basis beam vectors, the selected beams, co-phases, and coefficients. The CSI includes at least precoding matrix information (PMI) corresponding to a precoding vector based on a set of the basis beam vectors for the selected beams, corresponding co-phases, and corresponding coefficients.

Inventors:

RAHMAN MD SAIFUR (US)
NAM YOUNG-HAN (US)

Application Number:

PCT/KR2015/012365

Publication Date:

May 26, 2016

Filing Date:

November 17, 2015

Export Citation:

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Assignee:

SAMSUNG ELECTRONICS CO LTD (KR)

International Classes:

H04B7/04; H04B7/06

Foreign References:

US20140301492A1	2014-10-09
US20140226702A1	2014-08-14
US20140301496A1	2014-10-09
US20140177745A1	2014-06-26
US20140098689A1	2014-04-10

Other References: