Methods and apparatus to facilitate wake-up signaling during discontinuous reception

An apparatus for wireless communication at a User Equipment (UE), comprising:

• a memory;
• and
• at least one processor coupled to the memory and configured to:
• receive a wake-up signal (WUS) from a base station while performing a discontinuous reception (DRX) cycle, the WUS configured to indicate data for transmission to the UE;
• at least one of receive a downlink reference signal or transmit an uplink reference signal based on the WUS and prior to reception of the data, wherein the uplink reference signal or the downlink reference signal is respectively transmitted or received during an on-duration of the DRX cycle and in response to receiving the WUS;
• send a Channel State Information (CSI) report to the base station based on the WUS and prior to the receiving of the data;
• and
• receive the data following the respective receiving or transmitting of the downlink reference signal or uplink reference signal.

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

• transmitting a wake-up signal (WUS) to a User Equipment (UE) performing a discontinuous reception (DRX) cycle, the WUS indicating data for transmission to the UE;
• at least one of receiving an uplink reference signal or transmitting a downlink reference signal based on the WUS and prior to transmission of the data, wherein the downlink reference signal or uplink reference signal is respectively transmitted or received during an on-duration of the DRX cycle and after receipt of the WUS at the UE;
• receiving a Channel State Information (CSI) report from the UE based on the WUS and prior to the transmission of the data;
• and
• transmitting the data following the respective receiving or transmitting of the uplink reference signal or downlink reference signal.

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

• a memory;
• and
• at least one processor coupled to the memory and configured to:
• transmit a wake-up signal (WUS) to a User Equipment (UE) performing a discontinuous reception (DRX) cycle, the WUS configured to indicate data for transmission to the UE;
• at least one of receive an uplink reference signal or transmit a downlink reference signal based on the WUS and prior to transmission of the data, wherein the downlink reference signal is transmitted or the uplink reference signal is received during an on-duration of the DRX cycle and after receipt of the WUS at the UE;
• receive a Channel State Information (CSI) report from the UE based on the WUS and prior to the transmitting of the data;
• and
• transmit the data to the UE following the receiving of the uplink reference signal or the transmitting of the downlink reference signal.