Abstract: This specification discloses a wake-up signal sending method and an apparatus, so that UE may accurately identify information in a WUR signal received via a wake-up circuit. The method may include designing a first time domain resource that is in the following format and that is used to transmit a wake-up signal: The first time domain resource includes N first time units with a preset length, one wake-up signal occupies at least one of the N first time units with the preset length, N is a positive integer, and a boundary location of the first time unit is determined based on a time domain location of a synchronization signal, so that a boundary location of the wake-up signal is determined, and a terminal prepares for identifying the wake-up signal.

Abstract: Embodiments of this application provide a signal transmission method and an apparatus. The method may include: A terminal device determines a periodicity of a synchronization signal; and the terminal device periodically receives the synchronization signal based on the periodicity of the synchronization signal through a first frequency resource, where the first frequency resource is further used to transmit a wake-up signal, and the wake-up signal indicates information about one or more terminal devices that need to receive paging.

Abstract: Embodiments of this application disclose a channel measurement method and device. The method includes: receiving, by an access network device, a sounding reference signal (SRS) from a terminal device; receiving, by the access network device from the terminal device, a power adjustment factor used by first antenna ports, where the first antenna ports are antenna ports used by the terminal device to send a data signal; determining, by the access network device, a first uplink channel based on the SRS; and determining, by the access network device, a target channel based on the first uplink channel and the power adjustment factor used by the first antenna ports, where the target channel is a target uplink channel or a target downlink channel.

Abstract: A terminal receives a power saving signal sent by a network device, where the power saving signal indicates N time units, and where N is greater than 0. The terminal determines a state of the terminal in a first time period corresponding to the N time units on a first frequency domain resource and a state in a second time period corresponding to the N time units on a second frequency domain resource. The state of the terminal includes a sleep state or a wake-up state. The sleep state indicates that the terminal monitors no first signal, and the wake-up state indicates that the terminal monitors a first signal based on a configuration parameter.

Abstract: A method for determining a feedback resource in a sidelink includes a first terminal sending SCI to a second terminal, where the SCI includes indication information. The indication information is used to indicate a first resource or a first resource window to be occupied for sending hybrid automatic repeat request HARQ feedback information by the second terminal, and the first resource window includes a plurality of candidate first resources. The method further includes the first terminal receiving, on the first resource, the HARQ feedback information sent by the second terminal, or monitors, in the first resource window, the HARQ feedback information sent by the second terminal.

Abstract: This application provides a communication method and apparatus. The method includes: A terminal device receives a first signal from a network device; the terminal device receives a second signal based on the first signal; and if the terminal device does not receive the first signal in a first time period, the terminal device receives a third signal. Both the second signal and the third signal indicate paging-related information. If the terminal device does not receive the first signal in the first time period, the terminal device determines to receive the paging-related information by using a procedure of receiving the third signal.

Abstract: Example methods and apparatus for transmitting ACK/NACK information for data are disclosed. One method includes sending a data packet from a base station to a user equipment. A control signaling is transmitted from the base station to the user equipment and is used to indicate a subframe to be used by the user equipment to send ACK/NACK information corresponding to the data packet.

Abstract: Embodiments of this application provide an information sending and receiving method and a communications device. The method includes: A network device configures first information. The first information includes a first field and/or a second field, the first field includes information indicating an energy saving state of a terminal device, and the second field includes information indicating a time length in which the terminal device maintains the energy saving state. Then, the network device sends the first information to the terminal device. In addition, the method includes: The terminal device receives the first information sent by the network device. Then, the terminal device reads the first field and/or the second field, and adjusts the energy saving state of the terminal device based on information obtained through reading. The technical solution provided in the embodiments of this application can reduce energy consumption of the terminal device to some extent.

Abstract: This application discloses a control information sending method, a control information receiving method, an apparatus, and a storage medium, applied to a communication system. The control information sending method includes: sending at least one piece of downlink control information and a corresponding downlink physical shared channel, where the downlink control information carries a count sequence number; and receiving feedback information from user equipment, where the feedback information includes DCI miss-detection information, the count sequence number indicates an accumulated quantity of uplink control information, the uplink control information corresponds to a downlink physical shared channel scheduled by using the downlink control information, and the uplink control information is used to transmit the feedback information.

Abstract: A composite polyimide separator and a preparation method thereof, and a secondary battery are described. The preparation method of the composite polyimide separator comprises: providing a porous polyamic acid film; subjecting a diamine aqueous solution and an acyl chloride organic solution to an interfacial polymerization reaction on a surface of the porous polyamic acid film to obtain a composite polyamic acid separator; and placing the composite polyamic acid separator in vapor of an imidization reagent for imidization treatment to obtain the composite polyimide separator. In the present application, by controlling the parameters of the interfacial polymerization reaction, a composite polyamic acid separator with a dense surface, a loose bottom, and an adjustable surface pore size can be obtained.

Abstract: A scheduling request transmission method includes a terminal device that, when a first uplink channel exists in a first time domain range, combines a scheduling request with information included in the first uplink channel to obtain first information, and transmits the first information to a network device. The first time domain range is related to a time domain position of a physical uplink control channel (PUCCH) including the scheduling request, and the first uplink channel is any one of, a PUCCH including a hybrid automatic repeat request (HARQ) feedback, a PUCCH including a channel state information (CSI) report, or a physical uplink shared channel (PUSCH).

Abstract: A transmission method is disclosed. A terminal device transmits uplink control information to a network device through a PUSCH when a time domain location of a PUCCH including the uplink control information is between that of DCI and that of a PUSCH; or a time domain location of a PUSCH is before that of a PUCCH, and a time domain length between a time domain location of a PDSCH corresponding to the uplink control information and the time domain location of the PUSCH is greater than or equal to a first time domain length; or a time domain location of a PUSCH is before that of a PUCCH, and a time domain length between a time domain location of a CSI-RS corresponding to the uplink control information and the time domain location of the PUSCH is greater than or equal to a second time domain length.

Abstract: This application provides a signal monitoring method and an apparatus, to reduce power consumption of a terminal device. The method includes: receiving, by a terminal device, a downlink signal; and monitoring, by the terminal device, a first type of signal in the downlink signal, where the first type of signal is a signal used to indicate power consumption reduction information, the terminal device does not monitor a second type of signal when monitoring the first type of signal, and the second type of signal is a signal used to indicate data scheduling.

Abstract: A terminal device receives discontinuous reception DRX configuration information from a network device, where the DRX configuration information includes at least configuration information of a first DRX, and the configuration information of the first DRX includes a cycle length of the first DRX; and determines, based on the DRX configuration information, to receive a downlink signal within at least first onDuration and second onDuration, where the second onDuration is next onDuration of the first onDuration, and a time interval between a start location of the first onDuration and a start location of the second onDuration is greater than the cycle length of the first DRX.

Abstract: A moving state reporting method includes communicating, by a terminal, with a network device using a beam to carry a signal reporting, by the terminal, moving state information of the terminal to the network device, where the moving state information includes a speed flag, and the speed flag indicates that a speed of the terminal exceeds a speed threshold, and receiving, by the terminal, beam management information from the network device.

Abstract: A communications method and apparatus implement radio frequency link sharing, improve radio frequency link utilization, and increase an uplink transmission rate. The method is as follows: a terminal receives first configuration information and second configuration information from a first network device. The first configuration information is used to indicate a first reference signal resource of a first antenna port, and the second configuration information is used to indicate a second reference signal resource of a second antenna port; or the first configuration information is used to indicate a third reference signal resource of a first quantity of antenna ports, and the second configuration information is used to indicate a fourth reference signal resource of a second quantity of antenna ports. The terminal sends a first reference signal based on the first configuration information and sends a second reference signal based on the second configuration information.

Abstract: A communication method includes: obtaining configuration information, where the configuration information indicates a resource set, the resource set includes a first resource set and/or a second resource set, a resource in the first resource set may be used by a terminal of a first capability type to send a preamble, a resource in the second resource set may be used by a terminal of a second capability type to send a preamble, and the first resource set and the second resource set share at least some resources; selecting a target resource from the resource set, and sending a preamble by using the target resource; then receiving a random access response; and sending first random access information when the shared at least some resources include the target resource, where the first random access information may indicate a capability type of the terminal.

Abstract: A power control method and a power control apparatus, the method including determining a path loss estimate between a first terminal device and the second terminal device, determining a transmit power of a signal based on the path loss estimate between the first terminal device and the second terminal device and further based on a path loss estimate between a network device and the second terminal device, and sending, by the second terminal device, the signal to the first terminal device based on the transmit power of the signal. The signal is a physical sidelink shared channel (PSSCH), and the transmit power of the PSSCH is determined according to at least a maximum transmit power of the PSSCH, a target receive power of the PSSCH, the path loss estimate between the first terminal device and the second terminal device, and a target receive power of the PSSCH.

Abstract: A channel state measurement method includes: in a time period between two consecutive times of reporting of channel state information (CSI) reports, determining, based on a status of a CSI-reference signal (RS) resource on a second frequency domain resource, whether a CSI report includes CSI of the second frequency domain resource; or during reporting of a CSI report, determining whether reporting has been performed for the second frequency domain resource. If CSI of the second frequency domain resource has been reported in a current discontinuous reception (DRX) cycle, a current CSI report does not include CSI of the second frequency domain resource; otherwise, a CSI report that currently needs to be reported needs to include CSI of the second frequency domain resource. Alternatively, a terminal receives and measures a CSI-RS resource provided that the CSI-RS resource is within an active time of any frequency domain resource.

Abstract: This application provides a signal monitoring method and an apparatus. An example method includes: detecting a second signal in a downlink signal, where the second signal is a first type of signal, and the first type of signal is a downlink control information (DCI) and the first type of signal indicates power consumption reduction information; and determine, based on the second signal and a mapping relationship between at least one bit value in the first type of signal and at least one meaning of the power consumption reduction information, a meaning of power consumption reduction information indicated by the second signal, wherein the meaning of power consumption reduction information indicated by the second signal is one of at least one meaning of the power consumption reduction information in the mapping relationship.