Resources Contact Us Home
Channel code decoding for the CDMA forward link

Image Number 6 for United States Patent #6996385.

Channel coding is used on the forward link of a CDMA cellular telephone network to allow the CDMA mobile channel decoder to perform error correction. On a wireless link, channel code performance is improved by providing the channel decoder with an estimate of the reliability of each received symbol. This reliability information is typically the ratio of desired signal energy to interference plus noise variance at the channel decoder input. This invention improves CDMA mobile channel decoder performance using a new technique for calculating more accurate estimates of the signal to interference plus noise ratio at the input of the mobile channel decoder.

  Recently Added Patents
Device and method to automatically configure port forwarding
Digital IF demodulator for video applications
Stroboscopic image modulation to reduce the visual blur of an object being viewed by an observer experiencing vibration
Concentration measuring apparatus for hydrogen sulfide in gas flow, and method for determining sulfide ion
Fast port switching in an audiovisual receiver by use of port pre-authentication by a partial PHY decoder core
Electronic product design
Lateral double diffused metal oxide semiconductor device and method of manufacturing the same
  Randomly Featured Patents
Electrically conductive gel
3,4-dihydro-(1H)quinazolin-2-one compounds as CSBP/p38 kinase inhibitors
Optical device and signal processor
Safety switch for a combustion system
Gaming table layout
Key mechanisms
Image processing apparatus capable of creating a dither matrix providing improved image quality
Method of recording holograms for use in optical scanners
Architecture for high throughput semiconductor processing applications
Newly identified human epsilon immunoglobulin peptides and related products