Abstract: Embodiments of this application disclose a data receiving method, a data sending method, a data transmission method, and a related apparatus and system. The method includes: sending, by a network device in each transmission subwindow corresponding to a broadcast signal, the broadcast signal to user equipment by using a different antenna port, where the transmission subwindow is obtained by dividing, based on preset subwindow information, a transmission window corresponding to the broadcast signal; and determining, by the UE, a transmission subwindow in which a downlink transmit beam is located; and receiving the broadcast signal in a time in which the transmission subwindow is located, where the time in which the transmission subwindow is located is calculated based on the pre-obtained subwindow information.

Abstract: A downlink transmission method and an apparatus, the method including sending, by a network side device, a signaling indication to a terminal device (UE), where the signaling indication carries allocation information, and where the allocation information indicates a plurality of downlink transmission resources used to transmit data blocks.

Abstract: An information sending and receiving method and an apparatus are disclosed. In an embodiment an information sending apparatus includes a processor configured to determine, based on a physical broadcast channel (PBCH) period or a synchronization signal block burst set (SS block burst set) period, a period in which remaining minimum system information (RMSI) is to be sent and a sender configured to send the RMSI to a terminal device by using X as the period, wherein X is a multiple of the PBCH period, or X and the PBCH period are in a one-to-one correspondence or a one-to-many relationship, and wherein a network device is configured to send at least one piece of RMSI by using at least one beam or antenna port.

Abstract: Embodiments of this application disclose a data receiving method, a data sending method, a data transmission method, and a related apparatus and system. The method includes: sending, by a network device in each transmission subwindow corresponding to a broadcast signal, the broadcast signal to user equipment by using a different antenna port, where the transmission subwindow is obtained by dividing, based on preset subwindow information, a transmission window corresponding to the broadcast signal; and determining, by the UE, a transmission subwindow in which a downlink transmit beam is located; and receiving the broadcast signal in a time in which the transmission subwindow is located, where the time in which the transmission subwindow is located is calculated based on the pre-obtained subwindow information.

Abstract: A piston-cylinder structure includes a cylinder, an end cap, a tapered portion for extruding dead space, an upper bowl-shaped seal portion, a columnar seal portion, a lower bowl-shaped seal portion and a piston push rod. The upper bowl-shaped seal portion is configured to form sealing between the piston push rod and the cylinder when the piston push rod moves toward the end cap and to remove crystals on an inner wall of the cylinder. The columnar seal portion is configured to enable the piston push rod to be coaxial with the cylinder, and to provide a mechanical support for the piston push rod. The lower bowl-shaped seal portion is configured to provide sealing between the piston push rod and the cylinder and remove the crystals on the inner wall of the cylinder when the piston push rod moves toward the end cap.

Abstract: A method includes: broadcasting, by a network device, a minimum system information (MSI) message, where identification information of each SIB/system information block group in the MSI message includes an identifier of the SIB/system information block group and a type indication of the identifier, and the type indication of the identifier is used to indicate that a type of the identifier of the SIB/system information block group is an area specific system information identifier or a cell specific system information identifier. A corresponding terminal device and network device are also disclosed.

Abstract: A downlink transmission method and an apparatus, the method including sending, by a network side device, a signaling indication to a terminal device (UE), where the signaling indication carries allocation information, and where the allocation information indicates a plurality of downlink transmission resources used to transmit data blocks.

Abstract: Embodiments of this application disclose a data receiving method, a data sending method, a data transmission method, and a related apparatus and system. The method includes: sending, by a network device in each transmission subwindow corresponding to a broadcast signal, the broadcast signal to user equipment by using a different antenna port, where the transmission subwindow is obtained by dividing, based on preset subwindow information, a transmission window corresponding to the broadcast signal; and determining, by the UE, a transmission subwindow in which a downlink transmit beam is located; and receiving the broadcast signal in a time in which the transmission subwindow is located, where the time in which the transmission subwindow is located is calculated based on the pre-obtained subwindow information.

Abstract: This application discloses a paging indication transmission method, including: sending, by a network device, a first paging indication to a terminal device; and sending, by the network device, a second paging indication to the terminal device, where the first paging indication and the second paging indication form a complete paging indication of the terminal device. According to the foregoing paging indication transmission method and apparatus, the network device delivers the paging indication at two times, to reduce a payload for a single transmission of the paging indication.

Abstract: A downlink transmission method and an apparatus, the including sending, by a network side device, a signaling indication to a terminal device (UE), wherein the signaling indication carries allocation information, and wherein the allocation information indicates a plurality of downlink transmission resources used to transmit data blocks.

Abstract: This application provides a method and an apparatus for obtaining system information SI. The method includes: sending, by a terminal device, a first message to a network device, where the first message includes first request information used to request first system information SI; and detecting, by the terminal device, a second message and obtaining the first SI, where the second message includes information used to respond to the request of the first request information. The terminal device may send the first request information to the network device based on an actual requirement, and detect the second message on a preset time-frequency resource.

Abstract: Embodiments can provide a downlink-beam detection method and an apparatus. Under the method a terminal device can be notified by a network device of information about a broadcast beam. The network device can receive a detection result reported by the terminal device. The detection result may pertain to broadcast beam detection performed based on the information about the broadcast beam. the network device can then determine, based on the detection result, a downlink beam that needs to be swept during downlink-beam adjustment and that is used for data communication. This reduces signaling overheads.

Abstract: Embodiments of this application provide a paging method, including: sending, by a network device, paging-related information at a specified time, where the paging-related information is sent in a beam sweeping manner. A paging message is obtained based on the paging-related information.

Abstract: Embodiments provide a method for transmitting a downlink control signal, and an apparatus. The method includes: sending, by a base station, one or more radio frames, where the one or more radio frames include a plurality of OFDM symbols that carry synchronization signals, each OFDM symbol that carries a synchronization signal is sent by using one or more downlink beams of the base station, and the OFDM symbol that carries the synchronization signal further carries a downlink control signal. The downlink control signal is placed in the OFDM symbol that carries the synchronization signal.

Abstract: A piston-cylinder structure includes a cylinder, an end cap, a tapered portion for extruding dead space, an upper bowl-shaped seal portion, a columnar seal portion, a lower bowl-shaped seal portion and a piston push rod. The upper bowl-shaped seal portion is configured to form sealing between the piston push rod and the cylinder when the piston push rod moves toward the end cap and to remove crystals on an inner wall of the cylinder. The columnar seal portion is configured to enable the piston push rod to be coaxial with the cylinder, and to provide a mechanical support for the piston push rod. The lower bowl-shaped seal portion is configured to provide sealing between the piston push rod and the cylinder and remove the crystals on the inner wall of the cylinder when the piston push rod moves toward the end cap.

Abstract: This application discloses a method and an apparatus for transmitting a signal in a wireless communications system. An example method includes: sending or receiving a signal of a first beam in a first beam set within a communication time of the first beam; and sending or receiving a signal of a third beam in a second beam set within a switching gap for switching from the first beam to a second beam in the first beam set. According to the method and the apparatus for transmitting a signal in a wireless communications system in embodiments of this application, overheads can be reduced.

Abstract: A communication method and a terminal device are provided. The method includes: generating one or more radio frames, where each radio frame includes at least one multiplexing block, each multiplexing block includes a synchronization signal and a PBCH field, and the PBCH field includes information for indicating a beam; and then sending the radio frames to a terminal device.

Abstract: A beam training method includes: determining, by a terminal device, to send n pilot sequences to a network device by using n beams in n timeslots within one uplink beam training period, where the n pilot sequences are at least partially different, and n is a positive integer greater than 1; and sending, by the terminal device, the determined n pilot sequences to the network device by using the n beams in the n timeslots within the uplink beam training period.

Abstract: This application discloses an information transmission method and apparatus, and relates to the field of wireless communications technologies. The method in this application includes: receiving first resource configuration information, where the first resource configuration information is used to indicate a transmission resource of downlink control information, the downlink control information includes information used to indicate a transmission resource of a first message in a random access process and/or information used to indicate a transmission resource of a second message in the random access process, the first message includes a random access response message, and the second message includes a contention resolution message; and then receiving the first message and/or the second message based on the downlink control information. This application is applicable to a random access procedure.

Abstract: Embodiments of this application disclose a data receiving method, a data sending method, a data transmission method, and a related apparatus and system. The method includes: sending, by a network device in each transmission subwindow corresponding to a broadcast signal, the broadcast signal to user equipment by using a different antenna port, where the transmission subwindow is obtained by dividing, based on preset subwindow information, a transmission window corresponding to the broadcast signal; and determining, by the UE, a transmission subwindow in which a downlink transmit beam is located; and receiving the broadcast signal in a time in which the transmission subwindow is located, where the time in which the transmission subwindow is located is calculated based on the pre-obtained subwindow information.