Apparatus for generating precoding codebook for MIMO system...

Details Apparatus for generating precoding codebook for MIMO system... Apparatus for generating precoding codebook for MIMO system...

2007-10-04

2010-06-29

Vo, Don N (Department: 2611)

Pulse or digital communications

Systems using alternating or pulsating current

Plural channels for transmission of a single pulse train

Reexamination Certificate

active

07746952

ABSTRACT:
An apparatus and method to generate a preceding codebook for a Multiple-Input Multiple-Output (MIMO) system, the apparatus for generating a preceding codebook including: a clustering unit to collect a predetermined number of spatial beams into one cluster such that mutual interference is minimized, the predetermined number of spatial beams collected from among a plurality of spatial beams distributed to at least one user during a preceding process of a MIMO communication scheme; and a mapping table generator to generate a mapping table including one or more indexes generated based on information about the cluster, and a value of each element of the mapping table is generated based on interference between the clusters and/or whether overlapping of the clusters is allowed.

REFERENCES:
patent: 2008/0037669 (2008-02-01), Pan et al.
patent: 2008/0267138 (2008-10-01), Walton et al.

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