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
Linear transformer power supply
Lens module and method for manufacturing thereof
Imidazole derivatives used as TAFIa inhibitors
Position pointer, variable capacitor and inputting apparatus
Electronic device, information processing method, and storage medium
System and method for detecting malicious code executed by virtual machine
Multi-channel memory system including error correction decoder architecture with efficient area utilization
  Randomly Featured Patents
Dynamic random access memory
Transport star for containers
Low torque seal assembly
MEMS switch and manufacturing method thereof
Electrostatic recording apparatus providing an electric field adjacent a developer roller
Piezoelectric mirror device, optical equipment incorporating the same, and piezoelectric mirror device fabrication process
Housing for flash-bang grenade
Powder carrying apparatus and image forming apparatus
Tube joint for annular corrugated tubing
Method and apparatus for controlling paired operation of a conditional access module and an integrated receiver and decoder