Methods, devices and systems for grant-less uplink multiple access

A base station for multiple access wireless communications, the base station comprising:

• a transceiver;
• and
• the transceiver operatively coupled to a processor;
• wherein:
• the transceiver is configured to transmit configuration information indicating a set of physical channel frequency resources;
• the transceiver and the processor are configured to transmit downlink control information (DCI), wherein the DCI includes an indication of an allocation of at least a subset of the set of physical channel frequency resources;
• the transceiver is configured to receive data on a physical shared channel transmission using one or more physical channel frequency resources from the subset of the set of physical channel frequency resources during a time period;
• and
• the transceiver and the processor are configured to transmit hybrid automatic repeat request acknowledgement (HARQ-ACK) information associated with the received data during a time location, wherein the time location is associated with the subset of the set of physical channel frequency resources.