CPC H04W 74/0841 (2013.01) [H04L 1/0003 (2013.01); H04L 1/1819 (2013.01); H04W 72/0453 (2013.01); H04W 72/1263 (2013.01); H04W 72/23 (2023.01); H04W 74/008 (2013.01)] | 16 Claims |
1. A method, performed by a user equipment, UE, for handling a two-step Random Access Channel, RACH, procedure, in a wireless communications network, the method comprising:
obtaining a Physical Uplink Shared Channel, PUSCH, resource table comprising a plurality of PUSCH resources, each PUSCH resource out of the plurality of PUSCH resources corresponds to a preamble assigned for the two-step RACH procedure, obtaining the PUSCH resource table comprises receiving a Physical Downlink Control Channel, PDCCH, order and a Radio Resource Control, RRC, signaling comprising the PUSCH resource table from the network node;
when a Random Access, RA, event is triggered:
obtaining a Physical Random Access Channel, PRACH, preamble corresponding to the RA event and a desired grant size, by randomly selecting a preamble mapping to an entry of the PUSCH resource table, providing a required size of a PUSCH resource for the triggered RA event, the preamble being selected from a group of preambles corresponding to the RA event; and
obtaining a grant from the PUSCH resource table based on the obtained PRACH preamble, which grant comprises an indication of a PUSCH resource to use for a Msg 3 transmission in Uplink, UL, in the table, each PUSCH resource entry in the table being associated with the following characteristics:
indices for Bandwidth Parts (BWPs); and
a time period that the grant is valid since the PUSCH transmission starts.
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