Systems and methods for joint de-interleaving and rate recovery in a receiver

Abstract

A processing system can perform joint de-interleaving and rate recovery on data elements from a received transmission. A load engine can write new data elements for a portion of a received code block into a de-interleaving buffer in a column-wise order. A de-rate-matching engine can read the new data elements in row-wise order from the de-interleaving buffer and combine the new data elements with stored data elements from a code-block buffer according to the position of the data elements in a code block, writing the updated data elements back to the code block buffer. The DRM engine can include a cache that stores recently updated data elements. When an address collision occurs between two update operations, the DRM engine can retrieve the recently updated data elements from the cache rather than waiting for the code block buffer.