Method and apparatus for dedicated hardware and software split implementation of rate matching and de-matching
In the method of rate-matching, software is used to calculate at least one rate-matching parameter for data, and dedicated hardware is used to perform at least one of a puncturing and repetition process on data based on the calculated rate-matching parameter. In rate de-matching, software is again used to calculate at least one rate de-matching parameter for received data, and dedicated hardware is used to compensate for puncturing and repetition based on the calculated rate de-matching parameter.
1. An apparatus for rate-matching, comprising:
a processor configured to calculate at least one rate-matching parameter for data;
a selector configured to receive as parallel inputs a current input data from an encoder, a previous input data from the encoder and a previous output data from the selector, the previous input data having been received by the encoder before the current input data, and the selector configured to selectively perform at least one of a puncturing process and a repetition process; and
a state machine circuit configured to receive the calculated rate matching parameters and for controlling the selector based on the calculated rate matching parameters.
2. The apparatus of claim 1 , further including:
at least one data register configured to register at least one of input data, output validity signal, and output data;
an encoder configured to provide the input data to the selector; and
an interleaver configured to receive the output data.
3. The apparatus of claim 2 , wherein there are three data registers, one for the input data, one for the output validity signal, and one for the previous output data.