QUALCOMM Incorporated
MESSAGE 3 REPETITION CONDITIONED ON PRACH COVERAGE ENHANCEMENT

Abstract:

A random access procedure between a user equipment (UE) and a base station may include repetition of a random access message 3 conditioned on a property of a random access preamble to improve reception. The UE may transmit the random access preamble with coverage enhancement. The base station may detect a property of the random access preamble that indicates the coverage enhancement and determine a message 3 repetition parameter. The UE may transmit the random access message 3 with repetition based on the message 3 repetition parameter, and the base station may receive the random access message 3 based on the repetition parameter, thereby improving coverage of the random access message 3.