Abstract: Methods, systems, and media for performing personalized actions on mobile devices associated with a media presentation device are provided.

Abstract: This application provides a method and an apparatus for sending feedback information and a method and an apparatus for receiving feedback information, to reduce resource waste in a data retransmission process.

Abstract: This application provides a resource management method and apparatus. A terminal determines at least one reference signal resource corresponding to each of at least two frequency domain resources, and selects at least two reference signal resources from a plurality of reference signal resources corresponding to the at least two frequency domain resources, where the at least two selected reference signal resources are reference signal resources corresponding to at least two different frequency domain resources. In other words, some of the at least two reference signal resources are selected from a plurality of reference signal resources corresponding to one frequency domain resource, and other reference signal resources are selected from a plurality of reference signal resources corresponding to another frequency domain resource.

Abstract: This application discloses a communication method and a communications apparatus. The method includes: receiving, by a terminal device, reference signal configuration information sent by a network device, where the reference signal configuration information includes at least one of the following information: a beam sweeping type and a reference signal beam indication; receiving, by the terminal device, a reference signal and data that are sent by the network device; and determining, by the terminal device based on the reference signal configuration information, whether data can be mapped onto another resource element that is located on a same orthogonal frequency division multiplexing (OFDM) symbol as the reference signal. The corresponding apparatus is further disclosed. According to technical solutions provided in this application, reliable data reception can be implemented.

Abstract: This disclosure provides methods and apparatuses for repeated transmissions. One method includes: determining, by a terminal device, a plurality of receive beams to be used by a terminal device for receiving at least two transmissions of a transport block; and receiving, by the terminal device, the at least two transmissions of the transport block by using the plurality of receive beams determined by the terminal device.

Abstract: Embodiments of the present invention provide a communication method and a communications apparatus. The method includes: receiving configuration information of at least one frequency resource group, and receiving, by using at least one beam, a downlink signal on a corresponding frequency resource in the at least one frequency resource group, wherein each frequency resource group comprises at least two frequency resources, each frequency resource corresponds to at least one beam, and the configuration information comprises an identifier of each frequency resource group and an identifier of each frequency resource; and when it is detected based on the downlink signal that a beam associated with a first frequency resource in the frequency resource group fails, sending a beam recovery request on a second frequency resource in the frequency resource group. Correspondingly, a corresponding apparatus is further disclosed.

Abstract: The present disclosure relates to beam configuration methods and apparatus. One example method includes receiving, by a terminal, beam configuration information from a network device, where the beam configuration information is used to instruct the terminal to transmit a signal by using a first beam, and transmitting, by the terminal, the signal by using at least the first beam when a first preset duration starting from a first time point expires, where the first time point is a time point at which the terminal sends an acknowledgement (ACK) message for the beam configuration information to the network device.

Abstract: A communication method is provided, including: determining, by a first device, a relative power ratio between a phase tracking reference signal (PTRS) and a data channel; determining, by the first device, a transmit power of the PTRS based on the relative power ratio of the PTRS to the data channel; and sending, by the first device, the PTRS to a second device by using the transmit power of the PTRS.

Abstract: Embodiments of this application disclose a wireless communication method and an apparatus. The method includes: determining a target MCS if a current MCS exceeds a predetermined threshold, where the target MCS is an MCS less than or equal to the predetermined threshold; mapping a PTRS to one or more symbols based on the target MCS; and sending, to a terminal device, the symbol to which the PTRS is mapped. through implementation of the embodiments of this application, when the current MCS exceeds the predetermined threshold, the target MCS that is less than or equal to the predetermined threshold may be determined, so that a density of a PTRS on a time-frequency resource can be flexibly determined based on the target MCS and an association relationship between an MCS threshold and a time domain density of a PTRS, thereby helping reduce resource overheads of the PTRS.

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 communication method, a terminal device, and a network device. The method includes: using, by a terminal device, a first receive parameter to receive control information sent by a network device, where the control information is used to indicate a second receive parameter used by the terminal device to receive a to-be-transmitted signal; determining, by the terminal device based on a first antenna panel to which the first receive parameter belongs and a second antenna panel to which the second receive parameter belongs, a beam switching time required for switching from the first receive parameter to the second receive parameter; and receiving, by the terminal device, the to-be-transmitted signal based on the beam switching time.

Abstract: A cell handover method and an apparatus. Indication information is received from a source cell, where the indication information indicates to a first transmission configuration indicator TCI state and cell handover; initiating random access to a target cell according to the indication information. In response to first response information returned by the target cell being received, second response information is returned to the source cell, where the second response information indicates that the first TCI state is successfully activated. Cell handover is implemented through beam switch to reduce a delay of a terminal device during the cell handover. The terminal device returns the second response information to the source cell only after receiving the first response information returned by the target cell.

Abstract: Embodiments of this application disclose a resource configuration method, apparatus, and system. A network device sends a resource configuration of a physical uplink control channel PUCCH used for beam failure recovery to a terminal device, where the resource configuration of the PUCCH includes a corresponding transmit beam of the PUCCH. When detecting a beam failure event, the terminal device sends a transmit beam failure recovery request to the network device based on the resource configuration of the PUCCH and a corresponding periodicity of the PUCCH. The periodicity of the PUCCH may be configured by the network device, or may be a preset periodicity. According to the configuration manner of the PUCCH resource used for beam failure recovery in the embodiments of this application, the terminal device can flexibly and effectively perform beam failure recovery.

Abstract: This disclosure discloses a beam switching method and an apparatus. A terminal device receives first indication information from a network device, where the first indication information indicates a first beam. Then, the terminal device performs one or more of the following behaviors based on the first beam: measuring downlink time-frequency offset information and path loss information corresponding to the first beam, sending, based on the first beam, a signal for uplink timing measurement, and receiving uplink timing adjustment information from the network device, where the timing adjustment information is determined based on the first beam. Further, the terminal device receives second indication information from the network device, where the second indication information indicates to switch to the first beam. The terminal device first measures timing information and/or the path loss information of the first beam to be switched to.

Abstract: Embodiments of this application disclose a beam-based communication method. The method includes: receiving configuration information of a physical downlink control channel (PDCCH) from a network device, wherein the PDCCH is corresponding to a control resource set 0 (CORESET0); receiving indication information from the network device, wherein the indication information indicates a first beam; where the configuration information of the PDCCH includes a first parameter, the first parameter indicates that the PDCCH uses the first beam; and receiving the PDCCH by using the first beam.

Abstract: This application discloses a communication method and a communications device. The communication method includes: receiving configuration information sent by a base station, where the configuration information includes information about a first signal and quasi-co-location relationship information, and the quasi-co-location relationship information indicates that there is a quasi-co-location relationship between a port for sending the first signal and a port for sending a second signal; and obtaining a measurement quantity of the first signal based on a measurement quantity of the second signal and the quasi-co-location relationship information. According to the method, a quasi-co-location relationship is obtained and a measurement quantity is obtained based on the quasi-co-location relationship.

Abstract: Embodiments of this application disclose a communication method and an apparatus, and relate to the communication field, to support a terminal device in performing beam failure detection in a common beam scenario. The method includes: A terminal device receives a first transmission configuration indicator (TCI) from an access network device, where the TCI may indicate a common beam. For example, the first TCI includes information about a first uplink reference signal and/or information about a first downlink reference signal, a spatial transmission filter corresponding to the first uplink reference signal is used for sending a plurality of uplink channels, and the first downlink reference signal and demodulation reference signals DMRSs of a plurality of downlink channels meet a quasi co-location QCL relationship.

Abstract: Embodiments of this disclosure provide a beam generation method and a related apparatus thereof, to improve performance of communication between an access network device and a terminal device. The beam generation method in the embodiments of this disclosure includes: A terminal device receives M reference signal resources sent by an access network device; the terminal device measures each of the M reference signal resources to obtain first measurement information, where the first measurement information includes first phase information, the first phase information is phase information obtained by the terminal device by measuring each of N reference signal resources in the M reference signal resources, both N and M are integers greater than or equal to 1, and M is greater than or equal to N; and the terminal device sends first indication information to the access network device, where the first indication information indicates the first phase information.

Abstract: A data transmission method and an apparatus are disclosed. A single parameter indicates transmit beam information for uplink transmission and receive beam information for downlink transmission of a terminal device together. The data transmission method includes receiving first indication information, where the first indication information indicates a terminal device to perform data transmission based on a first parameter, and the first parameter indicates transmit beam information for uplink transmission and/or receive beam information for downlink transmission, and performing data transmission based on the transmit beam information and/or the receive beam information that are/is indicated by the first parameter.

Abstract: This application discloses a beam indication method and a communications apparatus. The method includes: sending configuration information to a terminal device, wherein the configuration information is used to indicate to determine, based on a unified beam indicator, beams used by the terminal device to transmit a plurality of physical channels and/or physical signals; and sending first information to the terminal device; wherein the first information is used to indicate the unified beam indicator; the unified beam indicator is associated with at least one downlink transmission configuration indicator (TCI) state identifier and at least one uplink TCI state identifier; and the downlink TCI state identifier is used to indicate a receive beam of a downlink physical channel, and the uplink TCI state identifier is used to indicate a transmit beam of an uplink physical channel. It can be learned it is helpful to reduce beam indication signaling overheads.