IFFT processing in wireless communications

A processing system, comprising:

• a memory having first, second and third sections;
• an encoder configured to process data in each of the first, second and third memory sections, wherein the encoder reads a first data from the first memory section, processes the first data, and writes the first data back to the first memory section as a first encoded data;
• an IFFT configured to read the first encoded data from the first memory section, process the first encoded data, and write the first encoded data back to the first memory section as a first IFFT processed data, concurrent to the encoder reading a second data from the second memory section, processing the second data, and writing the second data back to the second memory section as a second encoded data;
• and
• a post-processor configured to read the first IFFT processed data in from the first memory section and process the first IFFT processed data concurrent to the IFFT reading the second encoded data from the second memory section, processing the second encoded data, and writing the second encoded data back to the second memory section as a second IFFT processed data, and concurrent to the encoder reading a third data from the third memory section, processing the third data, and writing the third data back to the third memory section as a third encoded data, wherein the first, second, and third sections of the memory are reallocated between the encoder, the IFFT and the post-processor while processing the data, wherein each of the first, second, and third sections of the memory are shared exclusively by the encoder, the IFFT and the post-processor, wherein the encoder and the IFFT read from, and write to, the memory sections, and the post-processor reads from the memory sections.

A processor coupled to a memory having first, second and third sections, the processor configured:

• to process data to encode data in each of the first, second and third memory sections in a turn taking fashion, wherein the processor processing data to encode data comprises reading a first data from the first memory section, processing the first data, and writing the first data back to the first memory section as a first encoded data;
• to IFFT process the encoded data in each of the first, second, and third sections in a turn taking fashion, wherein the processor IFFT processing the encoded data comprises reading the first encoded data from the first memory section, processing the first encoded data, and writing the first encoded data back to the first memory section as a first IFFT processed data, concurrent to the processor processing data to encode data by reading a second data from the second memory section, processing the second data, and writing the second data back to the second memory section as a second encoded data;
• and
• to post-processor process the IFFT processed data in each of the first, second and third memory sections in a turn taking fashion, wherein the processor post-processor processing the IFFT processed data comprises reading the first IFFT processed data from the first memory section and processing the first IFFT processed data concurrent to the processor IFFT processing the encoded data by reading the second encoded data from the second memory section, processing the second encoded data, and writing the second encoded data back to the second memory section as a second IFFT processed data, and concurrent to the processor processing data to encode data by reading a third data from the third memory section, processing the third data, and writing the third data back to the third memory section as a third encoded data, wherein each of the first, second, and third memory sections alternately stores the encoded data and the IFFT processed data, wherein each of the first, second, and third memory sections are shared by the encode data process, the IFFT process and the post-processor process, wherein the encode data process and the IFFT process read from, and write to, the memory sections, and the post-processor process reads from the memory sections.

A method comprising:

• providing a memory having first, second and third sections;
• processing data by encoding data in each of the first, second and third memory sections in a round robin fashion, wherein processing data by encoding data comprises reading a first data from the first memory section, processing the first data, and writing the first data back to the first memory section as a first encoded data;
• IFFT processing the encoded data in each of the first, second, and third sections in a round robin fashion, wherein IFFT processing the encoded data comprises reading the first encoded data from the first memory section, processing the first encoded data, and writing the first encoded data back to the first memory section as a first IFFT processed data, concurrent to processing data by encoding data by reading a second data from the second memory section, processing the second data, and writing the second data back to the second memory section as a second encoded data;
• and
• post-processor processing the IFFT processed data in each of the first, second and third memory sections in a round robin fashion, wherein post-processor processing the IFFT processed data comprises reading the first IFFT processed data from the first memory section and processing the first IFFT processed data concurrent to IFFT processing the encoded data by reading the second encoded data from the second memory section, processing the second encoded data, and writing the second encoded data back to the second memory section as a second IFFT processed data, and concurrent to processing data by encoding data by reading a third data from the third memory section, processing the third data, and writing the third data back to the third memory section as a third encoded data wherein each of the first, second, and third memory sections are shared by the encoding data processing, the IFFT processing and the post-processor processing, wherein the encoding data processing and the IFFT processing read from, and write to, the memory sections, and the post-processor processing reads from the memory sections.

A processing system comprising:

• a means for providing a memory having first, second and third sections;
• a means for encoding data in each of the first, second and third memory sections in a round robin fashion, wherein the means for encoding data comprises a means for reading a first data from the first memory section, a means for processing the first data, and a means for writing the first data back to the first memory section as a first encoded data;
• a means for IFFT processing the encoded data in each of the first, second, and third sections in a round robin fashion, wherein the means for IFFT processing the encoded data comprises a means for reading the first encoded data from the first memory section, a means for processing the first encoded data, and a means for writing the first encoded data back to the first memory section as a first IFFT processed data, concurrent to the means for encoding data further comprising a means for reading a second data from the second memory section, a means for processing the second data, and a means for writing the second data back to the second memory section as a second encoded data;
• and
• a means for post-processor processing the IFFT processed data in each of the first, second and third memory sections in a round robin fashion, wherein the means for post-processor processing the IFFT processed data comprises a means for reading the first IFFT processed data from the first memory section and a means for processing the first IFFT processed data concurrent to the means for IFFT processing the encoded data further comprising a means for reading the second encoded data from the second memory section, a means for processing the second encoded data, and a means for writing the second encoded data back to the second memory section as a second IFFT processed data, and concurrent to the means for encoding data further comprising a means for reading a third data from the third memory section, a means for processing the third data, and a means for writing the third data back to the third memory section as a third encoded data, wherein the first, second, and third memory sections are exclusively shared by the means for encoding, the means for IFFT processing, and the means for post-processor processing, wherein the means for encoding and the means for IFFT processing read from, and write to, the memory sections, and the means for post-processor processing reads from the memory sections.

A non-transitory computer readable storage medium having a first, second and third sections, the computer readable storage medium containing a set of instructions for a processor to perform a method of IFFT processing by a transmitter, the instructions comprising:

• a routine to encode data in each of the first, second and third memory sections in a round robin fashion, wherein the routine to encode data comprises a routine to read first data from the first memory section, a routine to process the first data, and a routine to write the first data back to the first memory section as a first encoded data;
• a routine to IFFT process the encoded data in each of the first, second, and third sections in a round robin fashion, wherein the routine to IFFT process the encoded data comprises a routine to read the first encoded data from the first memory section, a routine to process the first encoded data, and a routine to write the first encoded data back to the first memory section as a first IFFT processed data, concurrent to the routine to encode data further comprising a routine to read a second data from the second memory section, a routine to process the second data, and a routine to write the second data back to the second memory section as a second encoded data;
• and
• a routine to post-processor process the IFFT processed data in each of the first, second and third memory sections in a round robin fashion, wherein the routine to post-processor process the IFFT processed data comprises a routine to read the first IFFT processed data from the first memory section and a routine to process the first IFFT processed data concurrent to the routine to IFFT process the encoded data further comprising a routine to read the second encoded data from the second memory section, a routine to process the second encoded data, and a routine to write the second encoded data back to the second memory section as a second IFFT processed data, and concurrent to the routine to encode data further comprising a routine to read a third data from the third memory section, a routine to process the third data, and a routine to write the third data back to the third memory section as a third encoded data, wherein each of the first, second and third memory sections are exclusively shared by all of the routines, wherein each of the routines reads data from each of the first, second, and third memory sections, and each of the encode data and IFFT process routines write data to each of the first, second, and third memory sections.