Abstract: A channel state information reporting method and a related apparatus is described. The method includes: receiving a first channel state information reference signal CSI-RS; sending, to a network device, first channel state information CSI obtained based on a measurement result of the first CSI-RS. The first CSI includes indication information of a first vector set for the network device to determine a target precoding matrix. The method further includes receiving a second CSI-RS; and sending, to the network device, second CSI obtained based on a measurement result of the second CSI-RS and a second vector set.

Abstract: This application provides a resource indication method for coordinated transmission and a communication apparatus. The method includes: A terminal device receives first information from a first network device, where the first information indicates a first physical downlink shared channel PDSCH rate matching and a first time offset. The terminal device sends second information to a second network device based on the first information, where the second information indicates a second PDSCH rate matching and a second time offset, the second PDSCH rate matching is determined based on the first PDSCH rate matching, and the second time offset is determined based on the first time offset.

Abstract: This disclosure provides a power control method, including: A terminal device obtains indication information of at least one power control value of an SRS and indication information of at least one time unit set. The at least one time unit set is in one-to-one correspondence with the at least one power control value. The terminal device determines transmit power of the SRS in a first time unit set based on a first power control value corresponding to the first time unit set in the at least one time unit set. The terminal device sends the SRS to a network device in a time unit in the first time unit based on the transmit power.

Abstract: This application provides a resource configuration method. The method includes: A terminal device receives a channel state information CSI reporting configuration from a network device, where the CSI reporting configuration includes N fields, the N fields are in one-to-one correspondence with N CSI resource configurations, a first field in the N fields indicates a first carrier associated with a first CSI resource configuration that is in the N CSI resource configurations and that corresponds to the first field, the N CSI resource configurations are associated with N carriers, and N is a positive integer greater than 1; the terminal device obtains CSI based on the CSI reporting configuration; and the terminal device sends the CSI to the network device.

Abstract: This application provides a channel measurement method and a communication apparatus, to improve accuracy of a channel measurement result, and may be applied to a communication system. The method includes: A terminal device receives first information indicating a channel state information reference signal CSI-RS resource occupied by a CSI-RS, receives the CSI-RS on the CSI-RS resource, and sends channel state information CSI.

Abstract: A pilot mapping method and an apparatus are provided, to implement pilot mapping corresponding to ports whose quantity is greater than 32. The method includes: determining time-frequency resource positions of CDM groups that correspond to each group of ports in X groups of ports and that are associated with Y positions, where each group of ports is distributed in a different resource block RB, X is determined based on a total quantity P of ports, a quantity of CDM groups is determined based on P and a type of the CDM group, X>1, Y?1, P>32, and X, Y, and P are integers; and sending first indication information, where the first indication information indicates the time-frequency resource positions of the CDM groups that correspond to each group of ports in the X groups of ports and that are associated with the Y positions.

Abstract: This application provides an uplink precoding indication method and a communication apparatus. The method includes: A terminal device receives first information from a network device, where the first information indicates M predefined codewords, transmit antenna ports corresponding to any one of the M predefined codewords are fully coherent, and M is a positive integer. In addition, the terminal device determines, based on the first information, a first uplink precoding matrix used by the terminal device to send uplink data, where a quantity of transmit antenna ports corresponding to the first uplink precoding matrix is greater than a quantity of transmit antenna ports corresponding to any one of the M predefined codewords. According to the method, an uplink precoding matrix applicable to more transmit antenna ports can be flexibly indicated, thereby effectively improving uplink transmission performance.

Abstract: Embodiments of this application provide a channel information reporting method and an apparatus. The method includes: A communication apparatus measures a plurality of reference signals from a plurality of radio access network devices, and determines first delay information and first channel information based on the plurality of reference signals; performs delay compensation on the first channel information based on the first delay information, to determine second channel information; determines a precoding matrix indicator (PMI) based on the second channel information, where the PMI indicates the second channel information; and reports the first delay information and the PMI.

Abstract: A channel measurement method and a communication apparatus are provided. The method includes: generating channel information, where the channel information indicates one or more receive beam vectors and one or more weighting coefficients, each of the one or more weighting coefficients corresponds to one receive beam vector, the one or more receive beam vectors and the one or more weighting coefficients corresponding to the one or more receive beam vectors are used to determine a channel of at least one frequency domain unit between a terminal device and a network device, the one or more receive beam vectors are selected from a receive beam vector set, and the receive beam vector set is determined based on a predefined base vector set; and sending the channel information.

Abstract: This disclosure discloses an information indication method and an apparatus, to resolve a problem that indication precision of an uplink precoding matrix is low. The method includes: receiving a downlink reference signal sent by a network device on a first transmission resource; performing channel estimation based on the downlink reference signal, to obtain a downlink equivalent channel corresponding to the first transmission resource; and determining, based on the downlink equivalent channel, to-be-indicated information corresponding to a terminal device, where the to-be-indicated information indicates an uplink precoding matrix used when a first terminal device sends uplink data on the first transmission resource. The downlink equivalent channel is obtained by performing channel estimation based on the downlink reference signal.

Abstract: A channel state information (CSI) determining method and apparatus are provided, and relate to the wireless communication field. In the method, a network device sends at least two reference signals including a first reference signal and a second reference signal, and receives first information. The first information indicates that a part or all of information in CSI corresponding to the second reference signal is determined based on the first reference signal. A sending periodicity of the first reference signal is less than a sending periodicity of the second reference signal. According to the foregoing, the network device can be enabled to efficiently obtain the CSI.

Abstract: This application provides a communication processing method and apparatus. The method includes: receiving M groups of first parameters and N groups of second parameters that are sent by a network device, where the first parameter is a downlink parameter, the second parameter is a CRS rate matching parameter, M is a positive integer greater than or equal to 2, and N is a positive integer greater than or equal to 1, where there is an association relationship between P groups of first parameters in the M groups of first parameters and the N groups of second parameters, P is less than or equal to M, and P is a positive integer. Terminal devices may determine a punctured time-frequency resource on a PDSCH based on CRS rate matching parameters determined by the terminal devices, to obtain downlink data.

Abstract: A method for sending a demodulation reference signal includes: a network device generates a first signal and sends the first signal on a first time-frequency resource, where the first signal is formed by superimposing M DMRS port signals, and delay segmentation locations corresponding to at least two of the M DMRS port signals are different. Because the first signal is formed by superposing the M DMRS port signals, that is, the network device sends a plurality of DMRS port signals on a same time-frequency resource, reference signal overheads can be reduced. The network device can send more DMRS port signals using the same time-frequency resource. In this way, the network device can send more streams without increasing pilot overheads.

Abstract: A method for determining channel state information and a communication apparatus. The method includes: sending first indication information, where the first indication information indicates a position for sending a downlink reference signal; receiving channel statistics information, where the channel statistics information is determined based on the downlink reference signal; sending second indication information, where the second indication information indicates a position for sending an uplink reference signal; and receiving the uplink reference signal, and determining channel state information based on the uplink reference signal and the channel statistics information. According to the method, a terminal device sends the uplink reference signal based on an indication of a network device, and therefore a large quantity of time-frequency resources may not be occupied. Therefore, the terminal device is not required to have high calculation complexity.

Abstract: This application provides a capability reporting method and an apparatus, to improve effectiveness of CSI report reporting, and may be applied to a communication system. The method includes: A terminal device generates first information. The first information includes at least one piece of capability information of the terminal device, and the capability information indicates a quantity of time domain units supported by the terminal device for a precoding matrix indicator (PMI). The terminal device sends the first information to a network device.

Abstract: The present disclosure provides a method for determining channel state information and an apparatus, relating to the field of communication technologies, to improve accuracy of channel state information (CSI) fed back by a terminal. In the method, a terminal may determine, based on a plurality of reference signals on a plurality of reference signal resources and a plurality of power offsets, a precoding matrix that matches a channel for actual transmission, so that a channel quality indicator (CQI) obtained based on the precoding matrix conforms to channel quality of the channel for actual transmission. In other words, in this case, the terminal can obtain an accurate CQI, thereby improving accuracy of CSI fed back by the terminal to a network device, and improving transmission performance.

Abstract: This application relates to the field of communication technologies, and in particular, to a channel state information reporting method, an apparatus, and a readable storage medium. The method includes: determining indication information of M coefficients based on reference signals on N reference signal resources, where priorities of the M coefficients are determined based on priorities of the N reference signal resources, and the M coefficients are used to determine a precoding matrix; and sending first information, where the first information includes indication information of K coefficients, and the K coefficients are determined from the M coefficients based on the priorities of the M coefficients. It is ensured as much as possible that more important information can be preferentially reported, to reduce a performance loss of a communication system.

Abstract: A laundry detergent composition comprising a dye fixative, a cleaning polymer, and a surfactant system.

Abstract: This application provides a communication method and a communication apparatus, and relates to the communication field. In the method, a terminal generates first information, and sends the first information. The first information indicates at least one first capability parameter set, the first capability parameter set includes a maximum total quantity of transmit ports in one frequency unit and at least two of a maximum quantity of transmit ports on one resource associated with one CSI measurement hypothesis, or a maximum total quantity of transmit ports on a reference signal resource associated with the one CSI measurement hypothesis. The terminal reports a single CSI measurement capability and/or a CSI measurement capability in one frequency unit, to ensure that the network device performs CSI measurement configuration without exceeding the CSI measurement capabilities of the terminal.

Abstract: A method performed by a computing device comprises, during a screensharing session, determining a capture value of a first element and a capture value of a second element, wherein the capture value of the first element is determined by a provider and the capture value of the second element is determined by the provider, the provider having provided the first element to the computing device and having provided the second element to the computing device; based on the capture value of the first element being shareable, sending content of the first element to the screensharing session; and based on the capture value of the second element being not sharable, excluding content of the second element from the screensharing session.