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
Luggage wheel housing with wheel
Support for a portable electronic device
Display apparatus, control method thereof, and program
Fluorescent proteins
Transmitting apparatus and retransmitting method
Leg mounted portable computer
Packet transmission system and fault recovery method
  Randomly Featured Patents
Debarking and chipping apparatus
Compositions and methods for the treatment and diagnosis of breast cancer
System and method for exposing popular categories of browse tree
Dye mixtures, and their use in dyeing polyesters
Organophilic clay compositions
Ceramic bodies formed from partially stabilized zirconia
Motor vehicle dashboard cross-member
Rotary hinge shaft assembly
Substrate for a cultivated plant
Water-softening compositions