A method for removing interweaving and speed match
A rate matching and deinterleaving technology, applied in digital transmission systems, electrical components, error prevention, etc., can solve the problems of increasing circuit area and power consumption, reducing the capacity of the first interleaving RAM, and achieving low power consumption and saving The effect of capacity, simple algorithm
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[0149] The first specific implementation, as shown in FIG. 2, includes the following steps:
[0150] Step 210: Determine the rate matching mode of the transmission channel. If it is a puncturing mode, go to step 220; otherwise, go to step 230;
[0151] Step 220: Perform a first de-interleaving process on the symbol sequence of the current frame of the transmission channel; perform step 260;
[0152] Step 230: Calculate the value of the parameter e corresponding to the current symbol and its write address symbol_addr in the first interleaving RAM;
[0153] Step 240: Determine whether the e value corresponding to the current symbol is less than 0, if it is less than 0, go to step 250, otherwise go to step 260;
[0154] Step 250: Discard this symbol, and transfer to the processing of the next symbol;
[0155] Step 260: Write the symbols processed above into the first interleaving RAM in sequence;
[0156] Step 270: If there are TTI symbol sequences that have been punctured in the int...
Example
[0157] The second specific embodiment,
[0158] As shown in Figure 3, it includes the following steps:
[0159] Step 310: Determine the rate matching mode of the transmission channel, if it is a puncturing mode, go to step 320; otherwise, go to step 330;
[0160] Step 320: Perform a first de-interleaving process on the symbol sequence of the current frame of the transmission channel; perform step 390;
[0161] Step 330: Judge whether the TTI of the current transmission channel is greater than 10ms, if it is not greater than 10ms, proceed to step 340; otherwise, proceed to step 360;
[0162] Step 340: Calculate the parameter e value of the current symbol and its write address symbol_addr in the first interleaving RAM;
[0163] Step 350: If the e value corresponding to the current symbol is greater than 0, directly register the current symbol, otherwise the current symbol and the last registered symbol are accumulated and registered; step 390 is executed;
[0164] Step 360: When the...
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