Multi-user channel prediction for mobility scenarios

An apparatus for wireless communications, 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, via a first time slot, a first demodulation reference signal that is precoded according to a first set of precoding parameters;
• receive, via the first time slot, a second demodulation reference signal that is precoded according to a second set of precoding parameters;
• transmit a feedback message indicating channel estimation information for the apparatus based at least in part on the first demodulation reference signal and the second demodulation reference signal;
• and
• receive, via a second time slot subsequent to the first time slot, one or more messages that are precoded according to a third set of precoding parameters, the third set of precoding parameters predicted based at least in part on the channel estimation information and a channel prediction procedure of a network entity.

A method for wireless communications, at a network entity, comprising:

• transmitting, via a first time slot, a first demodulation reference signal that is precoded according to a first set of precoding parameters for a user equipment (UE);
• transmitting, via the first time slot, a second demodulation reference signal that is precoded according to a second set of precoding parameters for the UE;
• receiving a feedback message indicating channel estimation information for the UE based at least in part on the first demodulation reference signal and the second demodulation reference signal;
• performing, based at least in part on the feedback message and one or more other feedback messages for the UE, a channel prediction procedure for a second time slot subsequent to the first time slot;
• and
• transmitting, via the second time slot, one or more messages that are precoded according to a third set of precoding parameters, the third set of precoding parameters predicted based at least in part on the channel estimation information and the channel prediction procedure.

A method for wireless communications, at a user equipment (UE) comprising:

• receiving, via a first time slot, a first demodulation reference signal that is precoded according to a first set of precoding parameters;
• receiving, via the first time slot, a second demodulation reference signal that is precoded according to a second set of precoding parameters;
• transmitting a feedback message indicating channel estimation information for the UE based at least in part on the first demodulation reference signal and the second demodulation reference signal;
• and
• receiving, via a second time slot subsequent to the first time slot, one or more messages that are precoded according to a third set of precoding parameters, the third set of precoding parameters predicted based at least in part on the channel estimation information and a channel prediction procedure of a network entity.