Resources Contact Us Home
FFT-size detection and cell search for a cellular communication system

Image Number 6 for United States Patent #8116806.

An apparatus and method for cell acquisition and downlink synchronization acquisition in an OFDMA wireless communication system are provided. In an SS apparatus in a broadband wireless communication system, a preamble subcarrier acquirer extracts subcarrier values having a preamble code from an FFT signal. A multiplier code-demodulates the subcarrier values by multiplying the subcarrier values by a preamble code. A correlator calculates a plurality of differential correlations in the code-demodulated signal. An IFFT processor IFFT-processes the differential correlations by mapping the differential correlations to subcarriers. A maximum value detector detects a maximum value from the IFFT signal and calculates a timing offset using an IFFT output index having the maximum value.

  Recently Added Patents
Server providing pseudo print preview and final regular preview to device
Detection of bioagents using a shear horizontal surface acoustic wave biosensor
System and method for controlling a wireless device
Methods for the production of aligned carbon nanotubes and nanostructured material containing the same
Dielectric insulation medium
Optical modulation element
Jacket liner
  Randomly Featured Patents
Sealing cap especially for antibiotic, infusion and transfusion bottles
Fabric of high drapability, manufacture thereof, use thereof for making airbags, and airbag made thereof
Method of location display for mobile station
Waist elastic applicator for diaper or similar article
Compositions and a process for preparing water dispersible polymers
Thermal printer and method of controlling the same
Anti-herpes simplex virus antibodies and methods of use thereof
Sensor device and system having a conveyor and a sensor device
Switch receptacle
Enthalpy tunnel