DOWNLINK PHYSICAL LAYER PROCESSING IN WIRELESS NETWORKS WITH SYMBOL RATE MAPPING

摘要

A downlink physical layer processing system includes a transport block segmentation processor that receives a transport block and generates segmented blocks from the transport block, an encoder that encodes the segmented blocks and forms encoded blocks, a mapping processor that maps the encoded blocks to symbols corresponding to resource elements to generate mapped symbols for transmission over a transmission medium, and a transmission signal generator that processes the mapped symbols to generate transmission signals for transmission over the transmission medium. The mapping processor maps the encoded blocks to the symbols in response to a control signal generated by the transmission signal generator. The encoder thereby operates in response to timing of data received by the encoder while the mapping processor operates in response to timing of processing of symbols by the transmission signal generator.