Multiplex communications – Communication over free space – Having a plurality of contiguous regions served by...
Reexamination Certificate
2007-04-25
2010-11-09
Le, Danh C (Department: 2617)
Multiplex communications
Communication over free space
Having a plurality of contiguous regions served by...
C370S334000, C370S328000, C455S562100
Reexamination Certificate
active
07830840
ABSTRACT:
An apparatus and method for implementing SDMA in a multi-user multi-antenna system are provided, in which SDMA users are selected from among total users according to channel state information of the total users, and the number of transmission streams to be allocated to each of the SDMA users is determined by a tree search method.
REFERENCES:
patent: 2004/0002364 (2004-01-01), Trikkonen et al.
patent: 2004/0252632 (2004-12-01), Bourdoux et al.
Shen et al., Low Complexity User Selection Algorithms for Multiuser MIMO Systems with Block Diagonalization, Sep. 10, 2005.
Fuchs et al., A Novel Tree-Based Scheduling Algorithm for the Downlink of Multi-User MIMO Systems with ZF Beamforming, 2005.
Jang Yong-Up
Joung Jin-Gon
Jung Young-Ho
Kim Dong-Ho
Lee Yong-Hoon
Korea Advanced Institute of Science and Technology
Le Danh C
Samsung Electronics Co,. Ltd
The Farrell Law Firm, LLP
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