Abstract: The present disclosure provides a supercritical compressed air energy storage system. The supercritical compressed air energy storage system includes a supercritical liquefaction subsystem, an evaporation and expansion subsystem, a staged cryogenic storage subsystem, a heat storage and heat exchange subsystem, and a cryogenic energy compensation subsystem, the staged cryogenic storage subsystem being used for implementing the staged storage and release of cryogenic energy, improving efficiency of recovering cryogenic energy during energy release and energy storage, and thereby improving cycle efficiency of the system. The present disclosure does not need to provide any inputs of additional cryogenic energy and heat energy input externally, and has the advantages of high cycle efficiency, low cost, independent operation, environmental friendliness, and no limitation on terrain conditions, and it is suitable for large-scale commercial applications.

Abstract: An antenna switching method and apparatus are provided. The antenna switching method is performed by a terminal and includes: when a network environment of the terminal or a state of the terminal satisfies a first condition, performing an antenna switching state dominated by an uplink, performing uplink transmission sequentially on at least two antennas in the antenna switching state dominated by the uplink, obtaining an uplink transmission parameter of each of the antennas within a first preset time length, and determining a to-be-used uplink antenna according to the uplink transmission parameter. The uplink transmission parameter includes: at least one of a network resource allocation amount, a network speed, a packet data convergence protocol (PDCP) layer rate, a radio link control (RLC) layer rate, a physical layer rate, a closed-loop power control variation of physical uplink shared channel, or a closed-loop power control variation of physical uplink control channel.

Abstract: A power adjustment method and an electronic device are provided. The method includes: detecting whether first information meets a first preset condition, where the first information includes at least one of the following: a first retransmission rate for uplink data, an actual transmission power for uplink data, or a first maximum transmission rate for uplink data, where the first maximum transmission power is a power threshold for transmitting the uplink data configured by a network device for the electronic device; and in a case that the first information meets the first preset condition, using a preset power control algorithm to adjust the first maximum transmission power to a target transmission power, where the target transmission power is greater than the first maximum transmission power and less than or equal to an inherent maximum transmission power of a radio frequency device of the electronic device.

Abstract: Embodiments of this disclosure provide a power determining method and a terminal device. The method includes: obtaining M target ratios, where each of the target ratios is a ratio of one of M target power values to a maximum target power value, the maximum target power value is a maximum value of the M target power values, the M target power values are receive power values of M logical antenna ports, the M logical antenna ports are logical antenna ports of a target receive antenna of the terminal device, and M is an integer greater than 1; and determining a target receive power value based on the M target ratios, where the target receive power value is a receive power value of the target receive antenna.

Abstract: The present disclosure provides a supercritical compressed air energy storage system. The supercritical compressed air energy storage system includes a supercritical liquefaction subsystem, an evaporation and expansion subsystem, a staged cryogenic storage subsystem, a heat storage and heat exchange subsystem, and a cryogenic energy compensation subsystem, the staged cryogenic storage subsystem being used for implementing the staged storage and release of cryogenic energy, improving efficiency of recovering cryogenic energy during energy release and energy storage, and thereby improving cycle efficiency of the system. The present disclosure does not need to provide any inputs of additional cryogenic energy and heat energy input externally, and has the advantages of high cycle efficiency, low cost, independent operation, environmental friendliness, and no limitation on terrain conditions, and it is suitable for large-scale commercial applications.