08462859 is referenced by 36 patents and cites 1022 patents.

Methods and apparatuses for decoding codewords received over a MIMO channel are provided. According to one aspect of the disclosure, a cost function is computed for each constellation point of an Mth rank or spatial layer, and Ncand of those constellation points having minimum cost are preserved as candidate points, where Ncand is a parameter specified to the decoding algorithm. In addition, a cost function may be computed for all possible transitions from the Ncand candidate points of the Mth rank to all possible constellation points of the (M−1)th spatial layer, and Ncand of those transitions having minimum cost are preserved as candidate points. The process is repeated for all spatial layers, resulting in the identification of Ncand candidate codewords and their associated cost functions.

Title
Sphere decoding apparatus
Application Number
11/445377
Publication Number
8462859 (B2)
Application Date
May 31, 2006
Publication Date
June 11, 2013
Inventor
Tamer Kadous
San Diego
CA, US
Hemanth Sampath
San Diego
CA, US
Agent
Stanton Braden
Assignee
QUALCOMM Incorporated
CA, US
IPC
H04L 27/28
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