Resources Contact Us Home
Downscaling system bandwidth

Image Number 3 for United States Patent #8009782.

A larger second bandwidth is fitted to a first transmission bandwidth by blanking PRBs at one or both edges of the larger second bandwidth. A first set of control channels is mapped to unblanked PRBs of the second bandwidth using a restricted set of physical cell identities that map only to the unblanked PRBs. A second control channel is punctured so that after it is interleaved and cyclically shifted the punctured CCEs fall on the blanked PRBs, and this second control channel is power compensated for the punctured CCEs. The first set and the second control channels are assigned in view of the puncturing and blanked PRBs, an IFFT for the larger second bandwidth is performed on a signal using zeros at the blanked PRBs, the signal is filtered to the first bandwidth and transmitted over a bandwidth not to exceed the first bandwidth.

  Recently Added Patents
Method for repairing or replacing damaged tissue
Semiconductor process
Method of manufacturing touch panel
Method and apparatus for interactive distribution of digital content
Image forming apparatus detecting color patterns and generating interleaf images at predetermined position
Differentiated PSIP table update interval technology
Multiple secure elements in mobile electronic device with near field communication capability
  Randomly Featured Patents
Process for making urethane-containing structures and the structures made thereby
Interferometric distance measuring method with spectrally separable double chirp and device
Compact multilayer band-pass filter and method using interdigital capacitor
Wire forming device
Half-jacket eyewear with removable dust shield
Electronically controlled cooking apparatus
Electric contactor
Interoperability of vulnerability and intrusion detection systems
Prostanoids and synthesis thereof