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Line 3: In some cases, a pre-defined pattern of puncturing is used in an encoder. Then, the inverse operation, known as depuncturing, is implemented by the decoder. Puncturing is used in [[UMTS]] during the rate matching process. It is also used in GPRS and EDGE. Puncturing is often used with the [[Viterbi algorithm]] in coding systems.

Punctured code: Difference between revisions