METHODS AND PROCEDURES OF WTRU IDENTIFICATION AND FEEDBACK FOR NOMA

摘要

A method performed by a WTRU may comprise receiving a common feedback transmission, in response to a transmission of the WTRU. The common feedback transmission may convey one or both of a preamble and a DMRS to indicate an identifier of the WTRU. The WTRU may determine whether a preamble-to-DMRS association is configured. If the preamble-to-DMRS association is not configured, the WTRU may determine to use both the preamble and the DMRS as the identifier of the WTRU. If the preamble-to-DMRS association is configured, the WTRU may determine whether to use one of the preamble or the DMRS as the identifier of the WTRU, based on the preamble-to-DMRS association.