Pulse or digital communications – Systems using alternating or pulsating current – Plural channels for transmission of a single pulse train
Reexamination Certificate
2011-08-09
2011-08-09
Lugo, David B (Department: 2611)
Pulse or digital communications
Systems using alternating or pulsating current
Plural channels for transmission of a single pulse train
C375S267000
Reexamination Certificate
active
07995668
ABSTRACT:
Improved techniques are disclosed for quantizing complex vectors in communication systems. For example, a method includes the following steps. At least one complex vector representative of at least one element of a communication system is obtained. A codeword that approximates the complex vector is identified. The identified codeword is a codeword, from a set of codewords, wherein a real part of a product of the codeword and a scaled version of the complex vector is about maximal over the set of codewords. The scaled version of the complex vector is the product of the complex vector and a constant from a set of constants. In one embodiment, the element of the communication system that the complex vector represents is a channel between a base station and a user terminal in the communication system.
REFERENCES:
patent: 2005/0265290 (2005-12-01), Hochwald et al.
patent: 2007/0206626 (2007-09-01), Lee et al.
patent: 2008/0080449 (2008-04-01), Huang et al.
patent: 2008/0081669 (2008-04-01), Kwon et al.
patent: 2008/0165875 (2008-07-01), Mundarath et al.
patent: 2008/0299917 (2008-12-01), Alexiou et al.
J.K. Wolf, “Efficient Maximum Likelihood Decoding of Linear Block Codes Using Trellis,” IEEE Transactions on Information Theory, Jan. 1978, pp. 76-80, vol. 24, No. 1.
D. Chase, “A Class of Algorithms for Decoding Block Codes with Channel Measured Information,” IEEE Transactions on Information Theory, Jan. 1972, pp. 170-182, vol. IT-18, No. 1.
Alcatel Lucent
Lugo David B
Ryan & Mason & Lewis, LLP
LandOfFree
Method and apparatus for quantizing complex vectors in... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for quantizing complex vectors in..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for quantizing complex vectors in... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2748480