Abstract: This disclosure disclose a terminal control method and a terminal. The method may include: when detecting that the front-facing camera is in a low power consumption mode, sending, by the second processor, a first message to the first processor, where the first message indicates that the front-facing camera is in the low power consumption mode; after receiving the first message, controlling, by the first processor, the front-facing camera to collect a low-power-consumption-mode image in the low power consumption mode; receiving, by the first processor, the low-power-consumption-mode image and identifying whether there are a predetermined quantity of consecutive low-power-consumption-mode images that include preset characteristic information, where the preset characteristic information is characteristic information indicating that a user currently needs to use the terminal; and adjusting, by the first processor, brightness of a screen of the terminal according to an identification result.

Abstract: A method for uplink transmission by a UE includes obtaining information regarding a plurality of power control sets each having a plurality of power control parameters, wherein a value of at least one parameter in a first power control set is different from a value of the at least one parameter in a second power control set; obtaining information associating at least one of the power control sets with at least one operational property of the UE; and when at least one of the operational properties is in effect on the UE, transmitting a PUSCH using the parameters of the power control set associated with the at least one operational property in effect.

Abstract: A method for power control for uplink transmission is provided. In an embodiment, a method in a user equipment (UE) for reference signal (RS) relationship specific uplink (UL) transmission power control includes transmitting, by the UE, a first UL signal according to a first power control set including at least one of a first target power, a second target power, a DL reference signal (RS) for pathloss estimation, a pathloss compensation factor, and a transmit power command (TPC). The first power control set is determined according to a first RS relationship between one first RS and a first UL signal.

Abstract: An SRS transmission method is provided, including: determining a quantity of ports corresponding to each of a plurality of SRS resources on a first time domain resource, where the plurality of SRS resources belong to a first SRS resource set; determining, based on the quantity of ports and transmit power corresponding, in a first time unit, to the first SRS resource set, transmit power of each port corresponding to each of the plurality of SRS resources, where a sum of transmit power of all ports corresponding to the plurality of SRS resources is less than or equal to transmit power corresponding to the first SRS resource set, and the first time unit includes the first time domain resource; and simultaneously transmitting, on the first time domain resource based on the transmit power of each port, SRSs carried in the plurality of SRS resources.

Abstract: Embodiments of the present application pertain to control information for scheduling a transmission resource for downlink and uplink communications between one or more TRP and one or more UE. One Physical Downlink Control Channel (PDCCH) for DL control information transmission is assumed to carry at least one assignment or scheduling information block for at least one Physical Downlink Shared Channel (PDSCH) for DL data transmission or for at least one Physical Uplink Shared Channel (PUSCH) for UL data transmission. Embodiments of the present application provide methods of providing configuration information that can be used by a user equipment (UE) to determine transmission mode for the PDSCH and PUSCH as well as information to determine where to monitor for the PDSCH, PUSCH and PUCCH information.

Abstract: Methods are disclosed that enable a user equipment (UE) to receive cell specific, UE specific and, in some embodiments, Physical Uplink Shared Channel (PUSCH) specific parameters from a network side component, such as a transmit/receive point, and use that information to set at least one PUSCH transmit power when transmitting to the network side.

Abstract: This application provides an uplink transmit power determining method and a terminal device. The method includes: receiving, by a terminal device, a broadcast message that is sent by an access network device and that carries first power control information, where the first power control information is used to determine an MCS compensation factor; determining, by the terminal device, the MCS compensation factor based on the first power control information; determining, by the terminal device, a first candidate uplink transmit power based on the MCS compensation factor; determining, by the terminal device, a smaller value in the first candidate uplink transmit power and a second candidate uplink transmit power as a PUSCH transmit power; and sending, by the terminal device, PUSCH information in a random access message based on the PUSCH transmit power.

Abstract: A random access method and an apparatus are described that provide improved transmission efficiency of a response message based on the response message scheduled by a plurality of PDCCHs. A terminal device receives a first control channel resource set used to monitor a common physical downlink control channel PDCCH and a second control channel resource set used to monitor a specific PDCCH that are sent by a network device. The terminal device sends a first message to the network device, and the terminal device monitors a first search space corresponding to the first control channel resource set and a second search space corresponding to the second control channel resource set to receive at least one of the common PDCCH and the specific PDCCH, to schedule a PDSCH that carries a response message of the first message.

Abstract: This application provides a data sending method and apparatus, and a terminal device. The method includes: determining, by a terminal device, a transmit power based on first information, where the first information includes at least one of the following information: information about a channel coding type of uplink control information in an uplink control channel, information about a length of a check code bit in the uplink control information, information about a quantity of resources occupied by an uplink reference signal in the uplink control channel, information about whether the uplink control channel is sent in a frequency hopping manner, or a transmission format of the uplink control channel; and sending, by the terminal device, the uplink control channel based on the transmit power, so that communication reliability and accuracy can be improved.

Abstract: A reference signal transmission method and apparatus are provided. The method includes: receiving, by a first terminal, uplink reference signal configuration information from a base station, wherein the uplink reference signal configuration information comprises configuration information of a first-type reference signal and configuration information of a second-type reference signal that the first terminal needs to send; and sending, by the first terminal, a first-type reference signal and a second-type reference signal to the base station based on the uplink reference signal configuration information. The method can be applied for V2X (vehicle to X), and/or, sidelink transmission, and/or, D2D (device to device) communication.

Abstract: Embodiments provide a method for transmitting a reference signal between a base station and a terminal. In this method, a parameter is determined by a terminal based on frequency domain location information of a frequency domain resource unit. The parameter is used to determine a sequence of the reference signal, and the reference signal is carried on the frequency domain resource unit. The reference signal can be sent to the base station by the terminal. In some embodiments, the reference signal sent by the base station can be received by the terminal. According to this method, a peak-to-average power ratio when a single terminal sends data to a base station can be reduced, and communication interference between different cells can be canceled or reduced as much as possible.

Abstract: An information sending method and device are provided, which include: obtaining M pieces of code block information corresponding to one codeword; performing the following processing on each of the M pieces of code block information to obtain N layers of output bit information: obtaining a quantity K of layers corresponding to one piece of the M pieces of code block information; obtaining a quantity of bits output after rate matching is performed on the one piece of code block information; and obtaining K layers of output bit information of the one piece of code block information based on the quantity of layers corresponding to the one piece of code block information and the quantity of bits output after rate matching is performed on the one piece of code block information; and modulating the N layers of output bit information and sending the modulated N layers of output bit information.

Abstract: Embodiments of the present invention provide a data transmission method, a network device, and user equipment, including: sending, by the network device, first indication information and second indication information to the user equipment, where the first indication information is used to indicate a frequency domain resource of a physical random access channel of the user equipment, the second indication information is physical layer control signaling, the second indication information is used to indicate a time domain resource of the physical random access channel, and a random access resource corresponding to the frequency domain resource and the time domain resource is used to carry random access information of the user equipment. In the embodiments of the present invention, a resource of a random access channel is dynamically indicated by using the physical layer control signaling, to improve random access resource allocation flexibility.

Abstract: Methods are disclosed that enable a user equipment (UE) to receive cell specific, UE specific and, in some embodiments, Physical Uplink Shared Channel (PUSCH) specific parameters from a network side component, such as a transmit/receive point, and use that information to set at least one PUSCH transmit power when transmitting to the network side.

Abstract: An uplink power control method and a communications device are described. The method includes receiving, by a terminal device, power control indication information sent by a network device. The power control indication information indicates a first power offset set, and the first power offset set is any one of at least two power offset sets. The method further includes receiving, by the terminal device, a transmit power control (TPC) command sent by the network device. The TPC indicates a first offset in the first power offset set. The method includes determining, by the terminal device, uplink transmit power based on the first offset. Impact of cross interference is considered in determining the uplink transmit power. Thus, the method can meet requirements of future mobile communications and improve system performance.

Abstract: Embodiments of this application disclose a power control method, and belong to the field of wireless communications technologies. The method includes: receiving, by a terminal device, signaling from a radio access network device; learning, by the terminal device based on the signaling, of a slot of power control information required by the terminal device to perform uplink sending; and obtaining, by the terminal device in the slot of the power control information required for uplink sending, the power control information required for uplink sending, so that the terminal device dynamically obtains uplink power control information of the terminal device without being based on a static uplink-downlink subframe configuration in the prior art.

Abstract: Embodiments of the present invention relate to the communications field, and provide a CQI measurement method, an apparatus, and a wireless communications system, to improve accuracy of downlink CQI measurement performed by UE. The CQI measurement method includes: determining, by a base station, a downlink CQI measurement resource, where the downlink CQI measurement resource is for use by a first UE to perform downlink CQI measurement, the downlink CQI measurement resource includes a frequency domain resource, and a bandwidth of the frequency domain resource is less than a system bandwidth; and sending, by the base station, resource indication information to the first UE, where the resource indication information is used to indicate the downlink CQI measurement resource.

Abstract: A method of path loss estimation at a user equipment (UE) comprises receiving a downlink cell-specific signal block comprising a synchronization channel and a broadcasting channel demodulation reference signal; receiving control information indicative of a signal transmission power of the downlink cell-specific signal block; and determining an estimated path loss for the UE based at least in part on the signal transmission power of the downlink cell-specific signal block and a received power of the downlink cell-specific signal block filtered using a layer 3 filtering coefficient.

Abstract: This application relates to a data transmission method that includes obtaining first information used to indicate a first time domain resource, and the first time domain resource is used to carry a first service and obtaining second information used to indicate that a second time domain resource includes N second subresources, and N is an integer greater than or equal to 1. The method further includes determining, based on the first time domain resource and the N second subresources, K first subresources included in the first time domain resource, where K is an integer greater than or equal to 1 and determining a quantity of K sub-transport blocks included in the first service carried on the first time domain resource, where the K sub-transport blocks one-to-one correspond to the K first subresources, and each sub-transport block is carried on a corresponding first subresource.

Abstract: A method of path loss estimation at a user equipment (UE) comprises receiving a downlink cell-specific signal block comprising a synchronization channel and a broadcasting channel demodulation reference signal; receiving control information indicative of a signal transmission power of the downlink cell-specific signal block; and determining an estimated path loss for the UE based at least in part on the signal transmission power of the downlink cell-specific signal block and a received power of the downlink cell-specific signal block filtered using a layer 3 filtering coefficient.