Resources Contact Us Home
Apparatus and method for signal transmission/reception in a communication system

Image Number 2 for United States Patent #8117516.

A method and an apparatus for transmitting a signal in a communication system are provided. An information vector is encoded according to a Low Density Parity Check (LDPC) encoding scheme, thereby generating an LDPC codeword. Minimum surviving check nodes are reserved for recovery of punctured nodes in the LDPC codeword. A check node is selected having a smallest cost function from among unreserved check nodes. A variable node is selected being unpunctured and having a smallest cost function from among variable nodes connected to the selected check node. The selected variable node is punctured when the selected variable node is not connected to the reserved check node. A stopping set check is performed when the selected variable node is connected to the reserved check node. The variable node is punctured when the stopping set check has been successfully performed. The check node is selected until there remains no variable node to be punctured and puncturing the variable node.

  Recently Added Patents
Method and system for using personal devices for authentication and service access at service outlets
Accordion bioreactor
Starch networks as absorbent or superabsorbent materials and their preparation by extrusion
System and methods for random parameter filtering
Analog to digital converter with increased sub-range resolution
Resin composition, prepreg, resin sheet, metal-clad laminate, printed wiring board, multilayer printed wiring board and semiconductor device
Method, apparatus and computer program product for providing metadata entry
  Randomly Featured Patents
Hand-held burr remover for conduit and pipe
Power drivable chuck
System and method for computer malware detection
Scrapbook paper organizer
Optimization techniques for data compression
Portable communication apparatus
Container filling apparatus and methods
Two piece collet with interlocking collet segments
High retention wood preservative composition
Screwdriver head