Abstract: This application discloses a multi-codeword transmission method and an apparatus. The method includes: generating, by a network device, downlink control information corresponding to each of a plurality of code words to be sent to a terminal device, where the downlink control information corresponding to each code word includes at least one of the following: a physical downlink shared channel resource element mapping and quasi-co-location indicator, and an antenna port(s), scrambling identity and number of layers; and sending, by the network device, downlink control information corresponding to the plurality of code words to the terminal device. Corresponding apparatuses are further disclosed.

Abstract: Embodiments of the application disclose a reference signal management method, an apparatus, and a system, to resolve a problem of relatively large system overheads in an existing high frequency beam management process. A terminal device receives first information sent by a network device. The first information is used to indicate a first reference signal group that is on a first carrier, there is a correspondence between the first reference signal group that is on the first carrier and a first reference signal that is on a second carrier, and the first reference signal group that is on the first carrier includes at least two reference signals. The terminal device receives the first reference signal group that is on the first carrier and that is sent by the network device.

Abstract: A battery cell includes a housing. A dimension of the housing along a length direction of the battery cell is greater than a dimension of the housing along a thickness direction of the battery cell and a dimension of the housing along a width direction of the battery cell. The housing includes a board extending along the length direction and an accommodation space opened from at least one end of the accommodation space. The battery cell further includes an electrode assembly disposed in the accommodation space and a cover configured to cover the opening. A pressure relief mechanism is disposed at the board and configured to be actuated, in response to an internal pressure or temperature of the housing reaching a threshold, to relieve the internal pressure. In the length direction, an extension dimension of the pressure relief mechanism is greater than or equal to ¼ of an extension dimension of the board.

Abstract: This application discloses a multi-codeword transmission method and an apparatus. The method includes: generating, by a network device, downlink control information corresponding to each of a plurality of code words to be sent to a terminal device, where the downlink control information corresponding to each code word includes at least one of the following: a physical downlink shared channel resource element mapping and quasi-co-location indicator, and an antenna port(s), scrambling identity and number of layers; and sending, by the network device, downlink control information corresponding to the plurality of code words to the terminal device. Corresponding apparatuses are further disclosed.

Abstract: Embodiments provide an electrode assembly, a battery cell, a battery, an electrical apparatus, and a manufacturing method and device. In those embodiments, the electrode assembly includes: an electrode plate, including a main portion and at least one protruding portion. The main portion includes a metal substrate and an active material layer coated on a surface of the metal substrate. The protruding portion is connected to the metal substrate. The metal substrate protrudes along a length direction of the electrode assembly. Along a thickness direction of the electrode assembly, a size of at least a part of the protruding portion is greater than a size of the metal substrate. The electrode assembly according to the Embodiments aims to solve a technical problem of severe heat emission of a tab.

Abstract: Embodiments of this application disclose beam training methods, apparatuses, and systems. One method includes: receiving, from a network device, interference-related information; receiving, from the network device, a downlink signal sent through two or more beams, wherein the two or more beams comprise an interfering beam that causes interference to a terminal device; and transmitting, to the network device, information related to a beam selected from the two or more beams, wherein the beam is selected by the terminal device based on the interference-related information and a measurement result obtained from measuring the downlink signal.

Abstract: The present application discloses an electrode assembly including: a first electrode sheet including an insulating substrate, an electricity-conducting layer arranged on a surface of the insulating substrate, and an active material layer coating on a surface of the electricity-conducting layer, in which the first electrode sheet is bent to form a multi-layer structure and includes a plurality of bending segments and a plurality of first layer-stacking segments arranged to be stacked, and each of the bending segments is configured to connect two adjacent first layer-stacking segments; a second electrode sheet, in which a polarity of the second electrode sheet is opposite to a polarity of the first electrode sheet, and the second electrode sheet includes a plurality of second layer-stacking segments, the plurality of second layer-stacking segments and the plurality of first layer-stacking segments are alternately arranged in a layer-stacking direction of the first layer-stacking segments.

Abstract: This application discloses a multi-codeword transmission method and an apparatus. The method includes: generating, by a network device, downlink control information corresponding to each of a plurality of code words to be sent to a terminal device, where the downlink control information corresponding to each code word includes at least one of the following: a physical downlink shared channel resource element mapping and quasi-co-location indicator, and an antenna port(s), scrambling identity and number of layers; and sending, by the network device, downlink control information corresponding to the plurality of code words to the terminal device. Corresponding apparatuses are further disclosed.

Abstract: This application provides a measurement reporting method and an apparatus. The method includes: receiving pilot measurement configuration information of a plurality of carriers, where the pilot measurement configuration information indicates a pilot association relationship of the plurality of carriers, and the pilot association relationship indicates that pilots of the plurality of carriers correspond to a same spatial domain transmit filter; performing measurement based on the pilot measurement configuration information, to obtain measurement report results of the plurality of carriers; and sending the measurement report results. The pilot association relationship of the plurality of carriers is configured for a terminal device, so that the terminal device may report, for the plurality of carriers, measurement results of the pilots corresponding to one or more same spatial domain transmit filters.

Abstract: A secondary cell activation method and an apparatus, the method including sending, by a terminal device, first indication information to a network device, where the first indication information indicates receive beam direction information of the terminal device, and where the receive beam direction information is associated with a channel state information reference signal (CSI-RS) resource for activating a secondary cell of the terminal device, receiving, by the terminal device, configuration information from the network device, where the configuration information configures the CSI-RS resource, and sending, by the terminal device, a first channel state information (CSI) report to the network device, where the first CSI report is obtained based on the CSI-RS resource, and where the first CSI report is used to activate the secondary cell.

Abstract: This application provides a method and an apparatus for determining a cell activation delay. A terminal device or a network device may determine the cell activation delay corresponding to a to-be-activated cell based on that a downlink spatial filter of a downlink signal of the to-be-activated cell and a downlink spatial filter of a downlink signal of an activated cell are the same or different. In this way, the terminal device sends CSI within the activation delay. The network device is to receive the CSI within the activation delay, and determines, depending on whether the CSI is received, whether the to-be-activated cell is successfully activated, the terminal device and the network device can determine a proper activation delay, to avoid a case in which the terminal device and the network device mistakenly determine, due to an excessively long or excessively short activation delay, whether a secondary cell is successfully activated.

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 discloses a secondary cell activation method and an apparatus, and relates to the communication field, so that a terminal device can report a channel state information measurement result in a secondary cell activation phase to a network device. The secondary cell activation method includes: A terminal device receives first indication information, where the first indication information is used to indicate an uplink resource for reporting a channel state information measurement result in a secondary cell activation phase; and the terminal device sends the channel state information measurement result to a network device based on the first indication information.

Abstract: Embodiments of the application disclose a reference signal management method, an apparatus, and a system, to resolve a problem of relatively large system overheads in an existing high frequency beam management process. A terminal device receives first information sent by a network device. The first information is used to indicate a first reference signal group that is on a first carrier, there is a correspondence between the first reference signal group that is on the first carrier and a first reference signal that is on a second carrier, and the first reference signal group that is on the first carrier includes at least two reference signals. The terminal device receives the first reference signal group that is on the first carrier and that is sent by the network device.

Abstract: This application provides a secondary cell activation method and a communication apparatus. The method includes: A terminal device receives activation signaling of a secondary cell sent by a network device, where the activation signaling includes at least one piece of first quasi co-location indication information; the terminal device activates the secondary cell based on the activation signaling. The technical solution provided in this application can reduce an activation delay of a secondary cell.

Abstract: This application discloses an information sending method. The method includes: generating, by a network device, control information, where the control information includes first indication information, second indication information, and third indication information, the first indication information is used to indicate a plurality of channel state information-reference signal CSI-RS resources, the second indication information is used to indicate at least one piece of the following information: beam index information of the plurality of CSI-RS resources that is sent by the network device, beam index information of the plurality of CSI-RS resources that is received by a terminal device, or beam pair information corresponding to the network device and the terminal, and the third indication information is used to indicate a measurement method of the plurality of CSI-RS resources; and sending, by the network device, the control information to the terminal device.

Abstract: The present invention relates to a measurement reporting method, and a communications apparatus. In the method, measurement reporting parameters reported to a base station satisfies reporting rules including: (a) a reporting setting with a smaller identifier has priority over a reporting setting with a larger identifier; (b) a serving cell with a smaller identifier has priority over a serving cell with a larger identifier; (c) a reporting type involving a beam index indication has priority over a reporting type involving an RI; and (d) aperiodic measurement reporting has priority over semi-persistent measurement reporting, or semi-persistent measurement reporting has priority over periodic measurement reporting. According to the method, performance of a wireless communications system is improved.

Abstract: Example information configuration methods, apparatus, and systems are described. One example method includes generating first configuration information by a network device. The first configuration information includes at least one of the following information: receive beam indication information of a terminal device, reference signal sending and channel state information feedback period indication information, reference signal function indication information, or beam sweeping method indication information. The network device sends the first configuration information to the terminal device by using layer one or layer two signaling. The embodiments of the present invention provide a measurement information configuration solution when a narrow beam technology is used in a high-frequency band.

Abstract: Embodiments of the present invention provide a method used for wireless communication and an apparatus. The method includes: configuring measurement parameters of channel state information for a terminal device, where the measurement parameters include a channel state information-reference signal configuration and a quasi-co-location indication, the channel state information-reference signal configuration includes configurations of at least two groups of antenna ports, and the quasi-co-location indication is used to indicate whether the at least two groups of antenna ports have a quasi-co-location relationship; and sending the measurement parameters to the terminal device.

Abstract: Embodiments of this application disclose beam training methods, apparatuses, and systems. One method includes: receiving, from a network device, interference-related information; receiving, from the network device, a downlink signal sent through two or more beams, wherein the two or more beams comprise an interfering beam that causes interference to a terminal device; and transmitting, to the network device, information related to a beam selected from the two or more beams, wherein the beam is selected by the terminal device based on the interference-related information and a measurement result obtained from measuring the downlink signal.