US 2006/0233269 A1 · Method of determining the location of the FFT window and the delay spread for the platinum broadcast channel estimator

Abstract

In one embodiment, the invention comprises a channel estimation method, comprising determining a FFT window position, and calculating a delay spread. In another embodiment, the step of determining a FE window position comprises setting an initial position of the FFT window, computing an energy for each tap, time averaging said energy for each tap, comparing an average energy of each tap with a first threshold multiplied by the average energy of all taps, comparing the average energy of each tap with a second threshold multiplied by a maximum average energy in alias components, updating the set of paths if the average energy of the tap is greater than said second threshold multiplied by the maximum average energy in alias components; and refining the FFT window position.

Claims40

Dependent claims

A channel estimation method, comprising:

determining a FFT window position;
and
calculating a delay spread.

A receiver to estimate a channel, comprising:

an RF receiver having an input and an output;
an IF receiver having an input and an output, wherein said input is operably connected to an output of said RF receiver;
an analog-to-digital converter having an input and an output, wherein said input is operably connected to said output of said IF receiver;
a decoder having an input and an output;
and
a processor having an input and an output, wherein said input is operably connected to said output of said analog-to-digital converter and said output is operably connected to said input of said decoder and said processor comprises
memory, and
software comprising instructions stored in said memory,
wherein said receiver is adapted to execute said instructions stored in said memory comprising
determining a FFT window position;
and
calculating a delay spread.

9 more elements

A processor to estimate a channel, comprising:

memory;
and
software comprising instructions stored in said memory, wherein said processor is adapted to execute said instructions stored in said memory comprising
determining a FFT window position;
and
calculating a delay spread.

3 more elements

A receiver means to estimate a channel, comprising:

an RF receiver means having an input and an output;
an IF receiver means having an input and an output, wherein said input is operably connected to an output of said RF receiver means;
an analog-to-digital converter means having an input and an output, wherein said input is operably connected to said output of said IF receiver means;
a decoder means having an input and an output;
and
a processor means having an input and an output, wherein said input is operably connected to said output of said analog-to-digital converter means and said output is operably connected to said input of said decoder means and said processor means comprises
memory means, and
software comprising instructions stored in said memory means,
wherein said receiver means is adapted to execute said instructions stored in said memory means comprising
determining a FFT window position;
and
calculating a delay spread.

9 more elements

A processor means to estimate a channel, comprising:

memory means;
and
software comprising instructions stored in said memory means, wherein said processor means is adapted to execute said instructions stored in said memory means comprising
determining a FFT window position;
and
calculating a delay spread.

3 more elements

Dependencies are inferred from the claim text.

Method of determining the location of the FFT window and the delay spread for the platinum broadcast channel estimator

Life of this patent

Method of determining the location of the FFT window and the delay spread for the platinum broadcast channel estimator

Life of this patent

Abstract

Claims40