Interference pre-cancellation for multi-user ultra low latency communications in wireless networks

An apparatus comprising at least one processor and at least one memory including computer instructions, when executed by the at least one processor, cause the apparatus to:

• determine, by an ultra low latency user device, a reference spatial subspace;
• determine, by the ultra low latency user device, a decoder matrix;
• receive, by the ultra low latency user device, a single bit control information indicating that a scheduled transmission of an ultra low latency data block to the ultra low latency user device is co-scheduled with a transmission of a mobile broadband data block to a mobile broadband user device via a set of shared physical resource blocks using multi-user multiple-input, multiple-output (MU-MIMO);
• and
• project, by the ultra low latency user device, the decoder matrix of the ultra low latency user device to be substantially orthogonal with the reference spatial subspace in which a precoder matrix for the mobile broadband user device is aligned with the reference spatial subspace, to reduce interference at the ultra low latency user device caused by the transmission of an enhanced mobile broadband data block, when receiving the ultra low latency data block.

A non-transitory computer-readable storage medium comprising instructions stored thereon that, when executed by at least one processor, are configured to cause a computing system to:

• determine a reference spatial subspace;
• determine a decoder matrix;
• receive a single bit control information indicating that a scheduled transmission of an ultra low latency data block to an ultra low latency user device is co-scheduled with a transmission of a mobile broadband data block to a mobile broadband user device via a set of shared physical resource blocks using multi-user multiple-input, multiple-output (MU-MIMO);
• and
• project the decoder matrix of the ultra low latency user device to be substantially orthogonal with the reference spatial subspace in which a precoder matrix for the mobile broadband user device is aligned with the reference spatial subspace, to reduce interference at the ultra low latency user device caused by the transmission of an enhanced mobile broadband data block, when receiving the ultra low latency data block.