Dual thread feedback design for non-orthogonal channels

A method of wireless communication at a base station, comprising:

• receiving channel feedback from multiple user equipments (UEs) for non-orthogonal channels of a carrier;
• sending, to one or more UEs of the multiple UEs, respective sets of potential transmission strategies for the one or more UEs for downlink transmissions over the carrier based at least in part on the channel feedback;
• receiving respective channel quality associated with at least a subset of each of the respective sets of potential transmission strategies from the one or more UEs;
• selecting one or more transmission strategies for a set of downlink transmissions based at least in part on the respective channel quality received from the one or more UEs;
• and
• transmitting the set of downlink transmissions to at least a subset of the multiple UEs over one or more of the non-orthogonal channels according to the selected transmission strategies.

An apparatus for wireless communication by a user equipment (UE), comprising:

• a processor;
• and
• a memory in electronic communication with the processor and instructions stored in the memory, the instructions being executable by the processor to:
• report channel feedback for non-orthogonal channels of a carrier to a base station;
• receive, in response to the reported channel feedback, a plurality of potential transmission strategies for downlink transmissions from the base station over the carrier;
• report channel quality for at least one transmission strategy of the plurality of potential transmission strategies;
• and
• receive a downlink transmission from the base station over one or more of the non-orthogonal channels according to a transmission strategy selected from the at least one transmission strategy.

An apparatus for wireless communication by a base station, comprising:

• a processor;
• and
• a memory in electronic communication with the processor and instructions stored in the memory, the instructions being executable by the processor to:
• receive channel feedback from multiple user equipments (UEs) for non-orthogonal channels of a carrier;
• send, to one or more UEs of the multiple UEs, respective sets of potential transmission strategies for the one or more UEs for downlink transmissions over the carrier based at least in part on the channel feedback;
• receive respective channel quality associated with at least a subset of each of the respective sets of potential transmission strategies from the one or more UEs of the multiple UEs;
• select one or more transmission strategies for a set of downlink transmissions based at least in part on the respective channel quality received from the one or more UEs;
• and
• transmit the set of downlink transmissions to at least a subset of the multiple UEs over one or more of the non-orthogonal channels according to the selected transmission strategies.