Resources Contact Us Home
Sphere decoder and decoding method thereof

Image Number 4 for United States Patent #8117522.

A sphere decoder sets a Euclidean distance between a lattice vector obtained by using an MMSE or ZF estimate and a received signal as an initial radius, further reduces the initial radius, and searches lattices points included inside a hypersphere with the further reduced initial radius. In addition, one lattice vector having a minimum Euclidean distance is output. One dimension is selected to reduce an initial radius, and estimates in other dimensions are kept fixed, excluding the selected dimension. Then candidate lattice points are searched in the selected dimension, excluding a current estimate, such that a minimum Euclidean distance and a lattice point estimate corresponding to the minimum Euclidean distance are obtained. The initial radius is updated by the minimum Euclidean distance, and a final lattice vector is constructed by combining a lattice point estimate corresponding to the initial radius and the lattice point estimates in other dimensions.

  Recently Added Patents
Measurement of an analyte on the skin using a hue angle
Computer systems and methods for the query and visualization of multidimensional databases
Liquid low temperature injection molding process
System for providing access to playable media
Method and apparatus for linking a web browser link to a promotional offer
Query processing with specialized query operators
Antibodies to non-functional P2X.sub.7 receptor
  Randomly Featured Patents
Articulating diamond-surfaced spinal implants
Door apparatus
Semiconductor differential interconnect
High voltage integrated circuit
Fine-particled amphoteric aqueous polymer dispersion method for production and use thereof
Process for spraying concrete or mortar
System and method for aligning output signals in massively parallel testers and other electronic devices
Electron discharge device with a spatially periodic focused beam
Method, system, server and unit for setting configuration information of a presentity client
Terminal wire clamp