Abstract: Embodiments of this application provide a data transmission method and an apparatus, and relate to the communication field, to indicate a plurality of codebooks or a plurality of sounding reference signal (SRS) resource combinations. The method includes: A terminal device receives first information, where the first information is used to indicate a plurality of codebooks; and the terminal device performs data transmission based on the plurality of codebooks, where each of the plurality of codebooks corresponds to one beam. Alternatively, a terminal device is configured to receive second information, where the second information is used to indicate N SRS resource combinations, where N is an integer greater than 1; and the terminal device performs data transmission based on the N SRS resource combinations, where each of the N SRS resource combinations corresponds to one beam. Embodiments of this application are applied to a 5G communication system.

Abstract: The present application discloses a quantum bit control signal delay calibration method and a related device, which are applied to the technical field of signal calibration, and include: sampling the trigger signal at a signal receiving end at a preset sampling interval to obtain a sampling value; the trigger interval being an integral multiple of the sampling interval; counting effective sampling values in each trigger interval, comparing the number of the effective sampling values corresponding to each trigger interval with a nominal value, counting the number of fuzzy trigger intervals inconformity with the nominal value in a plurality of trigger intervals, and recording it as a sampling fuzzy severity; after the sampling fuzzy severity is recorded once, adjusting sampling time of the sampling according to a preset delay step length, to obtain the sampling fuzzy severity corresponding to a plurality of delay values, and generating a fuzzy severity quantization sequence.

Abstract: A communication method includes receiving an absolute timing advance command from a network device, and determining one of two uplink sending timing advances according to the absolute timing advance command. The absolute timing advance command includes a first field useable to indicate information about an uplink sending timing advance, and a second field useable to indicate a timing advance group identifier. The timing advance group identifier is associated with the one of the two uplink sending timing advances.

Abstract: The present application discloses a Josephson junction preparation method and a Josephson junction, wherein a mask is provided with a first channel and a second channel, one end of the second channel coincides with the first channel, and a three-end channel is formed; a strip-shaped first superconducting layer is formed on the side, away from the evaporation source, in the first channel in the first evaporation direction; an included angle is formed between the first evaporation direction and the surface normal of the substrate, and the first evaporation direction enables the first superconducting layer to be only arranged in the first channel; a second superconducting layer is arranged in the second channel in the second evaporation direction, and forming a Josephson junction in the overlapped area of the first channel and the second channel.

Abstract: The present invention relates to a polybutylene terephthalate composition and the manufacturing method thereof. The change rate of crystallization heat flow of the polybutylene terephthalate composition is greater than 200 mW/g-min, and the change rate of crystallization heat flow is determined according to the method of ISO 11357-3:2018. The polybutylene terephthalate composition of this invention has ideal heat resistance and low impurity content, and it is highly applicable in subsequent processing.

Abstract: Example data transmission methods and apparatus related to the field of communications technologies are described. One example method includes receiving, by a terminal based on a first transmission scheme, data sent by a network device, wherein the first transmission scheme is a data transmission scheme in which different redundancy versions (RV) of a same transport block (TB) are simultaneously transmitted by using two transmission configuration indicator (TCI) states.

Abstract: An information transmission method and an apparatus for generating high frequency narrow beam transmissions The apparatus performs a method includes: measuring reference signal resources in X resource sets, to determine M resource groups, where X is an integer greater than 1, and M is an integer greater than 0; and sending first indication information and second indication information to a network device, where the first indication information indicates the M resource groups, each of the M resource groups includes X reference signal resources, and the X reference signal resources in the resource group belong to different resource sets in the X resource sets; and the second indication information indicates panel information of N of the M resource groups, where N is an integer less than or equal to M.

Abstract: A cell beam indication method and a related terminal device for receiving configuration information sent by a network device, where the configuration information is used to configure at least one cell group, and each cell group includes a first cell and a second cell. The terminal device determines, based on a first beam indicated via a first cell in a first cell group, a second beam corresponding to the first cell group, where the first cell group includes at least one multi-beam cell. The terminal device determines, based on the second beam, a third beam of a second cell in the first cell group. This method may be used for a multi-beam cell, to indicate that a common beam can be used for the multi-beam cell in a form of a cell group.

Abstract: A timing advance obtaining method includes receiving, by a terminal device, first information from a network device. The first information indicates the terminal device to perform random access to a first cell, and the first cell is a non-serving cell of the terminal device. The method also includes sending, by the terminal device, a random access preamble corresponding to the first cell to the network device based on the first information. The method further includes receiving, by the terminal device, a random access response message from the network device. The random access response message includes a first timing advance corresponding to the first cell.

Abstract: A device for atomization of water and essential oil includes a water atomization assembly, an essential oil atomization assembly, and a vacuum pump. The water atomization assembly includes a first housing, a water container disposed in the first housing, an ultrasonic atomization module disposed in the first housing to atomize water from the water container. The essential oil atomization assembly includes a second housing, an essential oil atomization module disposed in the second housing, and an essential oil container. The vacuum pump is fixedly disposed on a bottom end of the first housing. The essential oil atomization module is connected to and disposed above the essential oil container; the essential oil container is at least partially disposed in the second housing; the first housing includes an outer wall including a recess, and the second housing is fixedly embedded in an upper part of the recess.

Abstract: This application discloses a data transmission method and apparatus, the method comprising: sending first information to a terminal device, wherein the first information indicates at least two transmission configuration indicator (TCI)-states; sending a radio resource control (RRC) signaling to the terminal device, wherein the RRC signaling configures a total quantity of transmission times that a same transport block (TB) is to be transmitted in different time units; and sending the same TB in each time unit of the different time units using the at least two TCI-states, wherein a time interval is between two adjacent time units in which the same TB is transmitted.

Abstract: A communication method and apparatus are provided, so that a terminal device performs a plurality of uplink transmissions simultaneously. The terminal device may determine at least two actual transmit powers based on expected transmit powers respectively corresponding to at least two uplink transmissions performed simultaneously, and a first maximum transmit power of the terminal device and/or second maximum transmit powers corresponding to the at least two uplink transmissions, and then perform uplink transmission simultaneously based on the at least two actual transmit powers. In this way, the terminal device may determine actual transmit powers for the plurality of uplink transmissions performed simultaneously, to simultaneously perform the plurality of uplink transmissions (for example, simultaneously perform uplink transmission by using a plurality of stations or antenna panels), thereby improving an uplink throughput.

Abstract: A power headroom reporting method and an apparatus are provided. The method includes: A terminal determines a power headroom based on a maximum transmit power of the terminal and a sum of expected transmit powers respectively corresponding to at least two antenna panels or transmission beams in the terminal. The terminal sends indication information of the power headroom to a network device. According to the method and the apparatus, in a scenario in which the terminal performs uplink transmission by using a plurality of antenna panels, each antenna panel corresponds to one transmission beam, so that the terminal can accurately report the power headroom, thereby facilitating subsequent uplink transmission scheduling and power control performed by a base station, and improving performance of the uplink transmission performed based on the plurality of antenna panels.

Abstract: This application provides a data transmission method and apparatus, to determine a TCI-state used for data transmission and correctly receive downlink data, thereby improving data transmission efficiency. The method includes: receiving downlink control information (DCI); and if an offset between the DCI and a corresponding physical downlink shared channel (PDSCH) is less than a preset threshold, at least one transmission configuration indicator (TCI) states configured for a serving cell of scheduled PDSCH comprises quasi-co-location (QCL-TypeD) information, and at least one TCI codepoint indicates two TCI states, receiving the corresponding PDSCH by using two default TCI-states corresponding to a smallest codepoint among TCI codepoints indicating two different TCI-states.

Abstract: This application discloses an information determining method and an apparatus, the information determining method includes: receiving indication information; and when the indication information indicates two TCI-states, and the indication information indicates that a quantity of consecutive transmissions of the same transport block is greater than 1, receiving the same transport block by using the two TCI-states at different time; or when the indication information indicates two TCI-states, and the indication information does not indicate the quantity of consecutive transmissions of the same transport block, simultaneously receiving the same transport block by using the two TCI-states, wherein the two TCI-states correspond to two code division multiplexing (CDM) groups of demodulation reference signal (DMRS) port.

Abstract: A method and an apparatus for determining a status of an antenna panel. A terminal receives configuration information including at least one downlink signal resource set. When determining that a first antenna panel corresponding to a first downlink signal resource set is turned on, the terminal measures quality of a resource in the first downlink signal resource set by using the first antenna panel, and sends first feedback information. The first feedback information may indicate the quality of the resource in the first downlink signal resource set. When the first antenna panel is turned off, the terminal skips measuring the quality of the resource in the first downlink signal resource set, and sends second feedback information. The second feedback information is used to indicate that the first antenna panel is turned off.

Abstract: This application provides an information reporting method, including: receiving configuration information sent by a network device, where the configuration information is used to configure a first resource set and a second resource set, the first resource set is used for channel measurement, the second resource set is used for interference measurement, identifiers that are of N first resources and that are in the first resource set are in a one-to-one correspondence with identifiers that are of N second resources and that are in the second resource set, and N is an integer greater than 1, where if the identifiers of the N second resources are the same, receive parameters of the N first resources are the same; measuring signal strengths on the N first resources, to obtain N first signal strengths. According to this application, overheads of interference measurement resources are reduced.

Abstract: This application discloses a data transmission method and apparatus. A network device determines first information, where the first information is used to indicate transmission parameters required for a plurality of transmissions of to-be-transmitted data; the network device sends the first information to a terminal device; and the network device sends the to-be-transmitted data to the terminal device for a plurality of times based on the first information.

Abstract: Embodiments of this application disclose a communication method and a communication apparatus. The method in embodiments of this application includes: A terminal device performs first-type measurement on a first reference signal, to obtain a first measurement result. The terminal device sends the first measurement result to a network device. The terminal device performs second-type measurement on a second reference signal based on the first measurement result, to obtain a second measurement result. The terminal device sends the second measurement result to the network device. It can be learned that, according to the foregoing technical solution, the terminal device reports the second measurement result to the network device, and the network device does not need to trigger, by using downlink control information, the terminal device to report the measurement result, so that signaling overheads and latency overheads are reduced.

Abstract: A vehicle steering method is provided for a vehicle having a plurality of steering wheels operated by a plurality of users. The method includes obtaining steering information from the plurality of steering wheels of the plurality of users; obtaining priority information of the steering wheels of the corresponding plurality of users; and in response to a user of a steering wheel with a highest priority operates to steer the vehicle, reading the steering information of the steering wheel with the highest priority.