Provided is a power management device including a first power domain operating in a sleep mode consuming minimal power, and a second power domain turned on exclusively when a wake signal is received from an external device within a communication range of the first power domain, wherein the first power domain includes an always-on Digital Low-DropOut (DLDO), and the second power domain includes a main Low-DropOut (LDO), and split sequence control is performed on power management in the first power domain and the second power domain.

Systems and techniques are provided for wireless communications. A process can include receiving, using a low-power wake-up receiver (LP-WUR) of a network entity (e.g., a UE), a low-power signal indicative of configuration information for a channel state information (CSI) report of the network entity. A configured receiver of the network entity can receive a CSI reference signal (CSI-RS), the configured receiver comprising the LP-WUR or a main radio (MR) of the network entity. The configured receiver can be determined based on the configuration information indicated by the low-power signal. The network entity can transmit a CSI report corresponding to one or more measurements of the CSI-RS, wherein a transmission time of the CSI report is based on the configuration information indicated by the low-power signal.

Systems, methods, and devices for wireless communication. In one aspect an apparatus for wirelessly communicating with a wireless station is provided. The apparatus comprises a first transceiver configured to receive a backoff signal from the wireless station during a first time period, the backoff signal configured to indicate a second time period. The apparatus further comprises a processor operationally coupled to the first transceiver and configured to refrain the first transceiver from transmitting a wireless signal during the second time period.

A method and a device are provided for waking up a MCU. The method includes: determining whether a second MCU is in a deep sleep state, when a first MCU triggers a communication event of transmitting data to the second MCU; and when the second MCU is in the deep sleep state, sending an interrupt wakeup signal to the second MCU via a wakeup pin connected between the first MCU and the second MCU, so as to wake up the second MCU.