Enhancements for contention based shared preconfigured uplink resource mechanism with additional resource allocation for retransmissions

A method comprising:

• configuring an assignment of contention based shared preconfigured uplink resources via radio resource control signaling for multiple user equipments;
• attempting to decode the contention based shared preconfigured uplink resources;
• in response to detecting a collision between transmissions within the contention based shared preconfigured uplink resources, transmitting the downlink control information indicating a negative acknowledgement with a common radio network temporary identifier and uplink grants for multiple physical uplink shared channel resource allocations for retransmission, and decoding the multiple physical uplink shared channel resource allocations;
• and
• in response to the transmitted uplink data being successfully decoded from at least one of the multiple user equipments within the assigned contention based shared resources, transmitting the downlink control information indicating an acknowledgement with a dedicated radio network temporary identifier.

An apparatus comprising:

• at least one processor;
• and
• at least one non-transitory memory including computer program code, the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus to:
• receive an assignment of contention based shared preconfigured uplink resources via radio resource control signaling;
• receive an assignment of a common radio network temporary identifier for monitoring downlink control information indicating a negative acknowledgement for contention based shared transmission, and a dedicated radio network temporary identifier for monitoring downlink control information indicating an acknowledgement of transmission of uplink data;
• transmit the uplink data during a contention based shared preconfigured uplink resource transmission using a physical uplink shared channel allocated for the contention based shared preconfigured uplink resource transmission;
• in response to the downlink control information indicating the negative acknowledgement and uplink grants for multiple physical uplink shared channel resources, retransmit the uplink data on a selected one of the received uplink grants for multiple physical uplink shared channel resources;
• and
• in response to the downlink control information indicating the acknowledgment, not retransmit the uplink data.

An apparatus comprising:

• at least one processor;
• and
• at least one non-transitory memory including computer program code, the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus to:
• configure an assignment of contention based shared preconfigured uplink resources via radio resource control signaling for multiple user equipments;
• attempt to decode the contention based shared preconfigured uplink resources;
• in response to detecting a collision between transmissions within the contention based shared preconfigured uplink resources, transmit the downlink control information indicating a negative acknowledgement with a common radio network temporary identifier and uplink grants for multiple physical uplink shared channel resource allocations for retransmission, and decode the multiple physical uplink shared channel resource allocations;
• and
• in response to the transmitted uplink data being successfully decoded from at least one of the multiple user equipments within the assigned contention based shared resources, transmit the downlink control information indicating an acknowledgement with a dedicated radio network temporary identifier.

A non-transitory program storage device readable by a machine, tangibly embodying a program of instructions executable by the machine for performing operations, the operations comprising:

• receiving an assignment of contention based shared preconfigured uplink resources via radio resource control signaling;
• receiving an assignment of a common radio network temporary identifier for monitoring downlink control information indicating a negative acknowledgement for contention based shared transmission, and a dedicated radio network temporary identifier for monitoring downlink control information indicating an acknowledgement of transmission of uplink data;
• transmitting the uplink data during a contention based shared preconfigured uplink resource transmission using a physical uplink shared channel allocated for the contention based shared preconfigured uplink resource transmission;
• in response to the downlink control information indicating the negative acknowledgement and uplink grants for multiple physical uplink shared channel resources, retransmitting the uplink data on a selected one of the received uplink grants for multiple physical uplink shared channel resources;
• and
• in response to the downlink control information indicating the acknowledgment, not retransmitting the uplink data.

A non-transitory program storage device readable by a machine, tangibly embodying a program of instructions executable by the machine for performing operations, the operations comprising:

• configuring an assignment of contention based shared preconfigured uplink resources via radio resource control signaling for multiple user equipments;
• attempting to decode the contention based shared preconfigured uplink resources;
• in response to detecting a collision between transmissions within the contention based shared preconfigured uplink resources, transmitting the downlink control information indicating a negative acknowledgement with a common radio network temporary identifier and uplink grants for multiple physical uplink shared channel resource allocations for retransmission, and decoding the multiple physical uplink shared channel resource allocations;
• and
• in response to the transmitted uplink data being successfully decoded from at least one of the multiple user equipments within the assigned contention based shared resources, transmitting the downlink control information indicating an acknowledgement with a dedicated radio network temporary identifier.