Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
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
Wireless communication method and apparatus for decoding enhanced dedicated channel absolute grant channel transmissions
Ink composition, ink set and image forming method
Controller-integrated electric rotating machine with a shifted control circuit
Method of recovery from sleep state of an ONU in a PON system capable of power saving
Communication apparatus mediating communication between instruments
Curable composition for imprints, patterning method and pattern
Method of modeling dynamic characteristics of a flight vehicle
  Randomly Featured Patents
Semiconductor device and a method of manufacturing the same
Pattern recognition system
Through-hole via on saw streets
Plasma display panel with priming discharge cell
Automobile and/or replica
Supervisory camera system
Clutch arrangement, in particular for the drive train of a vehicle
Multicolor display architecture using enhanced dark state
Charging apparatus for car storage batteries
Method for detecting speech in a vocoded signal