Multiplexing and transmission of multiple data streams in a wireless multi-carrier communication system

An apparatus in a wireless broadcast communication system, comprising:

• a data processor operative to process a plurality of data streams to obtain a plurality of data symbol streams, one data symbol stream for each data stream, each data stream being independently processed with a coding and modulation scheme selected for the data stream to obtain corresponding data symbol stream;
• a controller operative to allocate transmission units to each of the plurality of data streams, each transmission unit corresponding to one symbol period and being usable to transmit one data symbol in a subband;
• and
• a multiplexer operative to map, in a pseudo-random fashion, data symbols in each data symbol stream to respective transmission units allocated to the corresponding data stream and to form a composite symbol stream with data symbols, for the plurality of data streams, mapped onto to respective allocated transmission units, wherein a receiver determines which of the plurality of data streams to independently recover based on the data symbols included in the composite symbol stream for the data stream.

An apparatus having a processor for broadcasting and multicasting data in a wireless communication system, comprising:

• means for processing a plurality of data streams to obtain a plurality of data symbol streams, one data symbol stream for each data stream, each data stream being independently processed with a coding and modulation scheme selected for the data stream to obtain corresponding data symbol stream;
• means for allocating transmission units to each of the plurality of data streams, each transmission unit corresponding to one symbol period and being usable to transmit one data symbol in a subband;
• means for mapping, in a pseudo-random fashion, data symbols in each data symbol stream to respective transmission units allocated to the corresponding data stream;
• and
• means for forming a composite symbol stream with data symbols, for the plurality of data streams, mapped to respective allocated transmission units, wherein a receiver determines which of the plurality of data streams to independently recover based on the data symbols included in the composite symbol stream for the data stream.

A non-transitory computer-readable medium, in a wireless communication system, storing instructions thereon, comprising:

• instructions to process a plurality of data streams to obtain a plurality of data symbol streams, one data symbol stream for each data stream, each data stream being independently processed with a coding and modulation scheme selected for the data stream to obtain corresponding data symbol stream;
• instructions to allocate transmission units to each of the plurality of data streams, each transmission unit corresponding to one symbol period and being usable to transmit one data symbol;
• instructions to map, in a pseudo-random fashion, data symbols in each data symbol stream to respective transmission units allocated to the corresponding data stream;
• and
• instructions to form a composite symbol stream with data symbols, for the plurality of data streams, mapped to respective allocated transmission units, wherein a receiver determines which of the plurality of data streams to independently recover based on the data symbols included in the composite symbol stream for the data stream.

An apparatus for broadcasting and multicasting data in a wireless communication system, the apparatus comprising:

• a memory configured to store processor-executable instructions that cause the apparatus to perform operations comprising:
• processing a plurality of data streams to obtain a plurality of data symbol streams, one data symbol stream for each data stream, each data stream being independently processed with a coding and modulation scheme selected for the data stream to obtain corresponding data symbol stream;
• allocating transmission units to each of the plurality of data streams, each transmission unit corresponding to one symbol period and being usable to transmit one data symbol;
• mapping, in a pseudo-random fashion, data symbols in each data symbol stream to respective transmission units allocated to the corresponding data stream;
• and
• forming a composite symbol stream with data symbols, for the plurality of data streams, mapped to respective allocated transmission units, wherein a receiver determines which of the plurality of data streams to independently recover based on the data symbols included in the composite symbol stream for the data stream;
• and
• a processor configured to execute the processor-executable instructions stored in the memory.