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
Electronic device
Motion-compensated prediction of inter-layer residuals
System and method for wireless messaging in a wireless communication system
Integrated disk driving module including a stepping motor integrally formed with a base unit
Apparatus and method for sterilizing vessel with electron beam
Transport of multiple asynchronous data streams using higher order modulation
  Randomly Featured Patents
Liquid formulation of G-CSF conjugate
High temperature low thermal expansion fastener
Method and apparatus for linear insertion and removal of a memory module in a computer system
Microwave thermal heat pump defroster
Direct contact leadless package for high current devices
Polling communication system and polling control method
Diverter valve for power steering with power beyond
Closed-loop motion-control system using error to modify gain
Insulated concrete form system