Abstract: This application discloses a data receiving method, which may be applied to Internet of Vehicles, for example, V2X, LTE-V, and V2V. A first terminal apparatus may receive first control information from a second terminal apparatus, then receive second control information from the second terminal apparatus based on the first control information, and further receive, based on the first control information and the second control information, data sent by the second terminal apparatus. Therefore, the second control information and the data can be received after blind detection is performed on the first control information for a relatively small quantity of times, thereby improving efficiency of receiving the second control information and the data.

Abstract: This application provides a sidelink channel state information transmission method and a communication apparatus. The method and the apparatus may be applied to systems such as an internet of vehicles, V2X, and V2V. The method includes: a first terminal device sends modulation and coding scheme (MCS) table indication information, wherein the MCS table indication information indicates a MCS table corresponding to data sent by the first terminal device to a second terminal device, and the MCS table is associated with a resource pool for sending the data.

Abstract: This application provides a communication method, and a distance determining method and apparatus. A first terminal device sends a first signal. A second terminal device determines whether a location of the second terminal device is a specified area. When the location of the second terminal device is the specified area, the second terminal device sends feedback information. When the location of the second terminal device is not the specified area, the second terminal device does not send feedback information or sends less feedback information. This method is applicable to communication, for example, V2X communication or D2D communication, between terminal devices on a sidelink.

Abstract: This application provides a control information sending method, including determining L pieces of control information from M pieces of control information based on a priority rule, where the M pieces of control information include M1 pieces of uplink control information and M2 pieces of sidelink control information, types of M1 pieces of uplink control information include a hybrid automatic repeat request, a scheduling request, and channel state information, types of M2 pieces of sidelink control information include a sidelink hybrid automatic repeat request, a sidelink scheduling request, and sidelink channel state information, M is a positive integer greater than or equal to 2, M1 is an integer greater than or equal to 0, M2 is an integer greater than or equal to 1, and L is an integer greater than or equal to 0 and less than or equal to M, and sending the L pieces of control information.

Abstract: Disclosed are a signal sending method, a priority configuration method, and a device. The signal sending method includes: determining that S signals overlap in time domain; determining M signals in the S signals based on a maximum transmit power of a terminal device and priorities of the S signals, where the S signals include n sidelink signals and k uplink signals, n is a positive integer, k is an integer greater than or equal to 0, a total transmit power of the M signals is less than or equal to the maximum transmit power, and M is a positive integer; and sending the M signals. In embodiments of this application, a plurality of sidelink signals may be simultaneously sent, or a sidelink signal and an uplink signal may be simultaneously sent, thereby resolving a problem that currently a sidelink signal and an uplink signal cannot be simultaneously sent.

Abstract: A feedback method and apparatus which are used to provide a feedback mechanism in a sidelink communications system, and may be applied to the internet of vehicles, for example, V2X, LTE-V, and V2V. The method includes: a first terminal device determines that a feedback condition is met, and sends feedback information to a second terminal device, where the feedback information includes at least one of channel state information and a receive response, and the receive response includes a positive acknowledgment, a negative acknowledgment, or discontinuous transmission. In this way, the feedback condition is set, so that the first terminal device sends the feedback information only when the feedback condition is met. In this way, resource overheads and information redundancy that are caused when each terminal device in a communication group sends feedback information are effectively avoided.

Abstract: The communication method and the communications apparatus may be applied to the internet of vehicles, for example, V2X, LTE-V, and V2V. The method includes: A first terminal apparatus determines a scaling factor based on a subcarrier spacing of a first time-frequency resource to be used to send first data and/or a quantity of slots occupied by the first time-frequency resource. The first data is to-be-sent data of the first terminal apparatus, and the first time-frequency resource occupies a single slot or a plurality of consecutive slots. Then, the first terminal apparatus determines, based on the scaling factor, a size of a transmission block carrying the first data, and sends the transmission block carrying the first data to a second terminal apparatus on the first time-frequency resource.

Abstract: A feedback information sending method and an apparatus are provided. A first communications apparatus may determine sidelink feedback information, and send a reference signal to a second communications apparatus, where the reference signal carries the sidelink feedback information. In this way, terminals can send and receive the sidelink feedback information by using the reference signal, to improve transmission efficiency of the sidelink feedback information. When the terminal needs to send both a control channel or a data channel and feedback information in a same slot, this method avoids a problem that the terminal needs to simultaneously send two channels, e.g., the control channel (or the data channel) and a feedback channel, avoids reducing original transmission efficiency of the control channel or the data channel, and implements compatibility between sending through the control channel (or the data channel) and feedback through the feedback channel.

Abstract: This application provides a communication method and a communications apparatus. The communication method includes: a first terminal device determines a first parameter, where the first parameter is used to indicate a parameter of a sensing window, a parameter of a resource selection window, and/or a parameter of a first time window, and the first time window includes the sensing window and the resource selection window. The first terminal device determines a first resource pool from at least one resource pool based on the first parameter. The first terminal device selects a first resource from the first resource pool. The first terminal device transmits sidelink information on the first resource. According to the method provided in embodiments of this application, a data transmission delay can be reduced and system communication efficiency can be improved.

Abstract: Embodiments of this application provide a feedback control channel configuration method and a device, and relate to the field of wireless communication. A candidate time-frequency resource may be configured for a physical sidelink feedback control channel (PSFCH) that carries feedback control information, so that the required feedback control information can be fed back on the PSFCH. The method includes: determining, by first user equipment, configuration information of a PSFCH, where the configuration information of the PSFCH is to indicate or configure a candidate time-frequency resource of the PSFCH, and the candidate time-frequency resource of the PSFCH is to the carry feedback control information of first information; and sending, by the first user equipment, the configuration information of the PSFCH to second user equipment.

Abstract: Disclosed is a method for preparing fast ionic conductors based on in-situ polymerization, which uses the spatial resistance volume effect to widen ion migration channels by copolymerizing high spatial resistance monomers with highly reactive crosslinkers, resulting in shorter ion transport paths and substantially higher ionic conductivity of in-situ solid-state polymer electrolytes; also, the high spatial resistance monomers and highly reactive crosslinkers synergistically construct a three-dimensional network structure with both high mechanical strength and stable electrode electrolyte interface properties.

Abstract: Embodiments of the present invention relate to the field of communications methods and technologies, and in particular, to a transmission method and apparatus. The transmission method includes: generating, by a first device, a sequence based on one or more transmission parameters, where the one or more transmission parameters include at least one of the following: a time domain resource type, transmission waveform indication information, subcarrier spacing indication information, device type information, service type indication information, multiple-input multiple-output MIMO parameter information, duplex mode indication information, control channel format indication information, and transmission carrier indication information; generating to-be-transmitted information by using the sequence; and sending the to-be-transmitted information. According to the transmission method and apparatus in the embodiments of the present invention, a new transmission error check mechanism is provided.

Abstract: According to the application, a double interphase layer strategy with self-healing function is constructed at an interphase between an in-situ solid-state electrolyte and a lithium metal by the synergistic effect of double Lewis acids, a first protective layer inhibits a side reaction of the lithium metal and the in-situ solid-state electrolyte, and a second protective layer self-heals defects of the double interphase layer. The application solves the problem of unstable interface between electrode and electrolyte of in-situ solid-state lithium metal battery, and obtains lithium metal battery with high energy density, high coulombic efficiency and ultra-long cycling life.

Abstract: This application provides a transmission method and apparatus. The transmission method in this application includes: determining a to-be-processed channel, where the to-be-processed channel is a first channel or a second channel, the first channel is transmitted on a first carrier, the second channel is transmitted on a second carrier, the first channel and the second channel have different transmission start time points or transmission end time points, and the first channel and the second channel each have an overlapping transmission part in time domain; and skipping sending the overlapping transmission part of the to-be-processed channel.

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: This application provides an uplink control information sending method and apparatus and an uplink control information receiving method and apparatus. The sending method includes: determining a mapping-affecting factor, where the mapping-affecting factor is used to indicate a physical uplink shared channel (PUSCH) or uplink control information; mapping the uplink control information to the PUSCH based on the mapping-affecting factor; and sending the PUSCH to a base station.

Abstract: The invention provides a mechanism for switching between a first and a second positioning procedure. The first positioning procedure may be an absolute positioning procedure and the second positioning may be a relative positioning procedure. The switch may be initiated by a network node (300) which can instruct a client device (100) to terminate the first positioning procedure and to activate the second positioning procedure or to instruct the client device (100) to continue with the first positioning procedure and to activate the second positioning procedure. Thereby, allowing the positioning procedure used by the client device (100) to be adapted e.g. based on dynamic requirements on positioning procedures set by applications.

Abstract: Embodiments of this application disclose a message transmission method and apparatus, a terminal, and a base station. In the method, a symbol or symbol group may be used as a granularity to select a plurality of symbols or symbol groups from one or more slots and then allocate the plurality of symbols or symbol groups to a same terminal for transmitting data. The plurality of symbols or symbol groups may be used for uplink data scheduling or may be used for downlink data scheduling. Therefore, a slot resource is allocated at a small granularity, so that a time domain resource is more flexibly allocated, and the slot resource is more fully utilized. This helps improve message transmission efficiency, thereby expanding a coverage area.

Abstract: A data transmission method includes obtaining, by user equipment (UE), a maximum transmit power; determining, by the UE, a transmit power of a data channel and/or a transmit power of a control channel based on the maximum transmit power and a first parameter, where the first parameter includes at least one of the following: a bandwidth of the data channel, a bandwidth of the control channel, or a carrier type of a carrier of a first link; and sending, by the UE, the control channel and the data channel in a same subframe.

Abstract: A transmit end obtains a frequency hopping parameter and resource allocation information of a to-be-transmitted message, where the frequency hopping parameter includes at least one of bandwidth part indication information, beam indication information, reference signal configuration information, subcarrier spacing indication information, transmission waveform indication information, slot type indication information, channel type indication information, and transmission carrier indication information. The transmit end determines, based on the resource allocation information and the frequency hopping parameter, a physical resource used to send the to-be-transmitted message, where the physical resource includes information about a frequency domain resource on which the to-be-transmitted message is mapped in at least one time unit. The transmit end sends the to-be-transmitted message by using the physical resource.