Systems and methods herein increase the throughput and decreases the collisions of transmitted resource element group (REG) bundles. Prior to transmitting a PDCCH comprising REG bundles, one or more processors perform a multi-component interleaver process that diversifies and randomizes the sequence of the REG bundles while also supporting CORESETs having different symbol lengths. In embodiments, the multi-component interleaver diversifies a virtual sequence of REG bundles using a block interleaver and then uses a randomizer interleaver to randomize the output sequence of the block interleaver. The diversified and randomized output sequence of REG bundles may be the physical channel sequenced of the REG bundles. The physical channel sequence of REG bundles is diversified and randomized such that the physical sequence increases throughput and decreases the collisions of transmitted REG bundles. Other aspects are claimed and described.