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
Apparatus and method for transmitting and receiving data
Sealing member for piezoelectric resonator device, and piezoelectric resonator device
Nano-pigment inkjet ink composition that has a low odor and is environmentally-friendly
Portable gaming device and gaming system combining both physical and virtual play elements
Catalyst and process of hydrocarbon feedstock reformation to hydrogen and carbon monoxide
High performance design rule checking technique
Interconnect, bus system with interconnect and bus system operating method
  Randomly Featured Patents
Portion of a workspace
Hunter's reconfigureable scent-handling device
Single direct current arc chamber, and bi-directional direct current electrical switching apparatus employing the same
Folding stool
Microwave component mounting
Dimple interconnect for flat cables and printed wiring boards
Compiler with user-defined type inference rules
System and method for using TAP controllers
Heat transfer to endothermic reaction zone
Spinal implant