Non-uniform demodulation reference signal bundling

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

• a processor, memory coupled with the processor;
• and instructions stored in the memory and executable by the processor to cause the apparatus to:
• receive control signaling that schedules resources for receiving a plurality of demodulation reference signals and a plurality of associated data channels across a plurality of transmission time intervals (TTIs);
• determine a reference signal bundling pattern for receiving the plurality of demodulation reference signals and the plurality of associated data channels according to the control signaling, wherein the reference signal bundling pattern indicates that one or more of the plurality of TTIs are bundled as a plurality of reference signal bundled TTIs, at least two of the plurality of reference signal bundled TTIs having different durations;
• receive the plurality of demodulation reference signals and the plurality of associated data channels according to the reference signal bundling pattern;
• and
• perform channel estimation based at least in part on the received plurality of demodulation reference signals and the plurality of associated data channels.

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

• means for receiving control signaling that schedules resources for receiving a plurality of demodulation reference signals and a plurality of associated data channels across a plurality of transmission time intervals (TTIs);
• means for determining a reference signal bundling pattern for receiving the plurality of demodulation reference signals and the plurality of associated data channels according to the control signaling, wherein the reference signal bundling pattern indicates that one or more of the plurality of TTIs are bundled as a plurality of reference signal bundled TTIs, at least two of the plurality of reference signal bundled TTIs having different durations;
• means for receiving the plurality of demodulation reference signals and the plurality of associated data channels according to the reference signal bundling pattern;
• and
• means for performing channel estimation based at least in part on the received plurality of demodulation reference signals and the plurality of associated data channels.

A non-transitory computer-readable medium storing code for wireless communication at a user equipment (UE), the code comprising instructions executable by a processor to:

• receive control signaling that schedules resources for receiving a plurality of demodulation reference signals and a plurality of associated data channels across a plurality of transmission time intervals (TTIs);
• determine a reference signal bundling pattern for receiving the plurality of demodulation reference signals and the plurality of associated data channels according to the control signaling, wherein the reference signal bundling pattern indicates that one or more of the plurality of TTIs are bundled as a plurality of reference signal bundled TTIs, at least two of the plurality of reference signal bundled TTIs having different durations;
• receive the plurality of demodulation reference signals and the plurality of associated data channels according to the reference signal bundling pattern;
• and
• perform channel estimation based at least in part on the received plurality of demodulation reference signals and the plurality of associated data channels.