OFDM transmitter with variable code block interleaver and method for OFDM communications with variable code block sizes

摘要

A multi-antenna transmitter is configured for orthogonal frequency division multiplexed (OFDM) communications. The multi-antenna transmitter includes circuitry to receive an input bit sequence for code block segmentation including adding filler bits based on a selected code block size, a encoder to encode the bit sequence and an interleaver configurable to perform interleaving operations on blocks of bits of various code block sizes of the bit sequence. A controller is to select the code block size for the interleaver and OFDM transmitter circuitry to transmit OFDM symbols on subcarriers utilizing more than one antenna. The OFDM symbols are generated at least in part from the interleaved blocks.

主权项

1. A multi-antenna transmitter for orthogonal frequency division multiplexed (OFDM) communications comprising:
an encoder configured to encode an input bit sequence to generate blocks of encoded bits, the blocks having a variable number of coded bits, each block corresponding to one OFDM symbol; an interleaver configured to perform block interleaving operations on the blocks of encoded bits, wherein a number of padding bits are added prior to interleaving based on a size of an interleaver matrix; a controller configured to determine the size of the interleaver matrix, the interleaver being configurable by the controller to perform interleaving operations on blocks of bits of various code block sizes based on input from the controller; and OFDM transmitter circuitry configured to transmit OFDM symbols on subcarriers utilizing more than one antenna, the OFDM symbols generated at least in part from interleaved blocks provided by the interleaver.