QUALCOMM Incorporated
Message 2 PDSCH repetition based on multi-segment RAR window

Abstract:

Aspects are provided which improve RAR coverage through RAR PDSCH repetition. A UE is configured to transmit, to a BS, a preamble to initiate a RACH procedure. The BS is configured to transmit a first RAR to the UE in response to receiving the preamble during a first portion of a RAR window. The BS is configured to determine that an RRC connection request is not received in response to the transmitted first RAR. The BS is configured to transmit a first plurality of RARs to the UE in a first plurality of slots during a second portion of the RAR window subsequent to the first portion of the RAR window upon determining that an RRC connection request was not received in response to the transmitted first RAR. The UE is configured to receive, from the BS, the plurality of RARs in response to the transmitted preamble.