Resources Contact Us Home
Link adaptation in wireless networks for throughput maximization under retransmissions

Image Number 2 for United States Patent #7463677.

The present invention implements a method and system for dynamically adapting the modulation and coding scheme for radio links in a wireless communications network based on a retransmission environment model in order to maximize throughput and most efficiently allocate bandwidth resources. The present invention encompasses a refined calculus and methodology for deriving the link adaptation thresholds in a retransmission environment using a complex model and analysis of the retransmission environment. The present invention holds particular application for wireless data communications as opposed to real time data services because it is based on a retransmission model applicable primarily for data services. A critical component of this new link adaptation system is a "no transmission" cutoff mode that is selected for SIR below a base threshold value. This new mode prevents system instability and misallocation of bandwidth in a wireless communication system.

  Recently Added Patents
Automatic actuator for breakers or switches
Scalable packet processing systems and methods
Noise suppression in speech signals
Combining seismic data from sensors to attenuate noise
System and method for interactive image-based modeling of curved surfaces using single-view and multi-view feature curves
System and methods for facilitating and documenting user thinking and learning using enhanced interactive constructs
Mobile device case with storage compartment
  Randomly Featured Patents
Connector with release mechanism, and method for forming a releasable fluid connection
Adjustable guide rail apparatus for independently adjusting positions of first and second guide rails disposed respectively on opposite sides of the path of a conveyor
Network appliance
Container and method for transporting a syringe containing radioactive material
Liquid-liquid centrifugal contacting machines and methods of constructing and operating them
Methods for forming programmable transistor array comprising basic transistor units
Method and apparatus for forming lateral boreholes
Process for disguising saline taste of pharmaceuticals and product thereof
Internal combustion engine
Window shade cutting apparatus