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
Bread basket
Maize hybrid X08B748
System for presenting media services
Sensor packages and method of packaging dies of differing sizes
Liquid crystal display device
Systems and methods for providing a shared folder via television
Dual gate electronic memory cell and device with dual gate electronic memory cells
  Randomly Featured Patents
Feeding and discharging apparatus for an installation under subatmospheric pressure
Self-balancing vehicle
Dual voice speaker
Air monitoring device
Systems and methods for extracting meaning from multimodal inputs using finite-state devices
Light fixture
Remote communication devices, radio frequency identification devices, wireless communication systems, wireless communication methods, radio frequency identification device communication method
Display unit for wrapping paper and multiple cartridge adhesive tape using linear panel back
Camera having program shutter
Memory card and reproducing apparatus