Part-I - Controller General of Patents Designs and Trademarks

(12) PATENT APPLICATION PUBLICATION (21) Application No.1898/CHE/2011 A
(19) INDIA
(22) Date of filing of Application :03/06/2011 (43) Publication Date : 21/06/2013
(54) Title of the invention : MULTIPLE INPUT MULTIPLE OUTPUT (MIMO) TRANSMITTED SIGNAL VECTOR
ESTIMATION EMPLOYING MONTE CARLO SAMPLING TECHNIQUES
(51) International classification :H04B
(31) Priority Document No :NA
(32) Priority Date :NA
(33) Name of priority country :NA
(86) International Application No
:NA
Filing Date
:NA
(87) International Publication No : NA
(61) Patent of Addition to Application Number :NA
Filing Date
:NA
(62) Divisional to Application Number
:NA
Filing Date
:NA
(71)Name of Applicant :
1)INDIAN INSTITUTE OF SCIENCE
Address of Applicant :Indian Institute of Science C.V.
Raman Avenue Bangalore-560012 Tamil Nadu India
(72)Name of Inventor :
1)Ashok Kumar
2)Tanumay Datta
3)Ananthanarayanan Chockalingam
4)Balaji Sundar Rajan
(57) Abstract :
A method of determining a transmitted vector (x) in a MIMO receiver includes the steps of receiving a received vector (y)
representative of the transmitted vector (x), generating a first random number and forming, in a first iteration, a first symbol of a
first candidate vector, the candidate vector representing a potential solution vector. The step of forming is based on a first
approach if the first random number is greater than a first predetermined value (q), but is based on a second approach if the
random number is less than or equal to the first predetermined value (q). The first approach randomly selects the first symbol from
a uniform distribution of symbols in the transmission alphabet. The second approach selects the first symbol based on Gibbs
sampling. The method represents a randomized Markov Chain Monte Carlo (RMCMC) sampling technique.
No. of Pages : 25 No. of Claims : 22
The Patent Office Journal 21/06/2013 13945