Apparatus and methods for dynamic data-based scaling of data such as staged fast fourier transform (FFT) while enhancing performance

A method for data-based scaling comprising:

• storing at least one of the one or more input data samples;
• computing a scaling value operable for scaling the one or more data samples, wherein the scaling value is based on the one or more input data samples;
• and
• scaling the one or more stored data samples based on the computed scaling value;
• wherein computing a scaling value includes computing the scaling value based on a determined maximum value of the one or more input data samples and a predefined maximum data size, wherein the scaling value is computed to ensure that scaling produces scaled data equal to or below the predefined maximum data size to minimize the bit width of the data path.

An apparatus for data-based scaling of data comprising:

• means for storing at least one of the one or more input data samples;
• means for computing a scaling value operable for scaling the one or more data samples, wherein the scaling value is based on the one or more input data samples;
• and
• means for scaling the one or more stored data samples based on the computed scaling value wherein the means for computing a scaling value includes means for computing the scaling value based on a determined maximum value of the one or more input data samples and a predefined maximum data size, wherein the scaling value is computed to ensure that scaling produces scaled data equal to or below the predefined maximum data size to minimize the bit width of the data path.

A computer program product having stored thereon,

• code for causing a computer to store at least one of the one or more input data samples;
• code for causing a computer to compute a scaling value operable for scaling the one or more data samples, wherein the scaling value is based on the one or more input data samples;
• and
• code for causing a computer to scale the one or more stored data samples based on the computed scaling value;
• wherein the code for causing a computer to compute a scaling value includes code for causing a computer to compute the scaling value based on a determined maximum value of the one or more input data samples and a predefined maximum data size, wherein the scaling value is computed to ensure that scaling produces scaled data equal to or below the predefined maximum data size to minimize the bit width of the data path.

A communication apparatus comprising:

• at least one processor configured to:
• receive one or more data samples and to store at least one of the one or more input data samples in a memory;
• compute a scaling value operable for scaling the one or more data samples, wherein the scaling value is based on the one or more input data samples;
• and
• scale the one or more stored data samples based on the computed scaling value;
• and to further compute the scaling value based on a determined maximum value of the one or more data samples and a predefined maximum data size, wherein the scaling value is computed to ensure that the scaled data is equal to or below the predefined maximum data size to minimize the bit width of the data path.