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

Image Number 5 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
Sweetener compositions having enhanced sweetness and improved temporal and/or flavor profiles
Method and system for reciprocal mixing cancellation of wideband modulated blockers
Non-disruptive configuration of a virtualization controller in a data storage system
Switching apparatus and controlling method thereof
Apparatus, method and program for image receipt, processing, conversion, and delivery to and from a plurality of external apparatuses
Single-chain variable fragment (scFv) able to recognize and bind CD99 human protein
Processing data using information embedded in a data request
  Randomly Featured Patents
Method and apparatus for automatic competitive binding analysis
Pyrodetector suited for movement-selective and direction-selective detection
Two-piece closure having a child-resistant mode and a non child-resistant mode
Independent front suspension for front wheel drive
Cigarette holder
Method and apparatus for receiving a signal
Transparent photographic masks
Electrical connector
Method of operating a nuclear reactor
Roof for a motor vehicle