Turbo decoder input reordering

A receiving method comprising the steps of:

• receiving and demodulating a radio signal;
• generating soft data by sampling said demodulated radio signal;
• transmitting said soft data on a bus to a decoder;
• reordering and buffering said soft data within an input buffer of said decoder by:
• determining a transmission mode and a bus configuration;
• entering an initializing state of branching of a finite-state machine within said input buffer according to said determined transmission mode and bus configuration;
• performing transitions between states of said finite-state machine for each received set of soft data provided on at a bus;
• multiplexing said soft data depending on the state of said finite-state machine to a plurality of buffers;
• and
• writing said multiplexed data into said plurality of buffers;
• outputting said buffered soft data from said plurality of buffers within the input buffer to a turbo decoder coupled to the input buffer;
• and
• decoding said soft data by said turbo decoder.

An input buffer within a decoder of a radio receiver, the input buffer comprising:

• an input bus to receive incoming soft data from a sampler within the radio receiver according a plurality of transmission modes;
• a multiplexer coupled to the input bus within the input buffer of the decoder, the multiplexor to receive and reorder the incoming soft data to an order that is compatible with a decoder core of the decoder;
• and
• a plurality of buffers coupled to outputs of the multiplexer, wherein the buffers are independently filled to store the reordered soft data;
• a configuration register to store transmission mode information for each of the plurality of transmission modes;
• a finite-state machine coupled to the configuration register to receive control information for a specific transmission mode, the finite-state machine to control the multiplexer to reorder the incoming soft data according to a multiplexing scheme compatible with the specific transmission mode indicated by the control information provided by the configuration register.