ALEXANDRIA, Va., June 24 -- Altiostar Networks, Tewksbury, Massachusetts, has been assigned a patent (9,686,102) developed by Ramesh Annavajjala, Quincy, Massachusetts, for "sparse ordered iterative group multi-antenna channel estimation."

The patent application was filed on April 9, 2014 (14/248,958). The full-text of the patent can be found at http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=96,86,102. . . .