Punctured code

This has the same effect as encoding with an error-correction code with a higher rate, or less redundancy.

Puncturing is used in UMTS during the rate matching process.

It is also used in Wi-Fi, Wi-SUN, GPRS, EDGE, DVB-T and DAB, as well as in the DRM Standards.

Puncturing is often used with the Viterbi algorithm in coding systems.

During Radio Resource Control (RRC) Connection set procedure, during sending NBAP radio link setup message the uplink puncturing limit will send to NODE B, along with U/L spreading factor & U/L scrambling code.

Short illustration of the puncturing procedure.