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
Disk drive with a subset of sectors with reduced write-to-read gap
Pharmaceutical dosage form
Charged particle cancer therapy beam path control method and apparatus
Client-managed group communication sessions within a wireless communications system
Using storage cells to perform computation
DKK1 oncogene as therapeutic target for cancer and a diagnosing marker
System, apparatus, and method for fast startup of USB devices
  Randomly Featured Patents
Fabric washing compositions
Low parallax error radiation detector
True print preview method and apparatus
Method for producing glycogens for use in cosmetics by culturing yeast cells in two phases
Drying wood pulp
Imaging method and apparatus
Fluid line connector
Solid oxide fuel cell (SOFC) device having gradient interconnect
Tamper resistant ski ticket
Electroluminescent devices having pendant naphthylanthracene-based polymers