Abstract: A scheduling switching method includes receiving, by a terminal, a switching indication from a network device, where the switching indication indicates the terminal to switch from a first scheduling mode to a second scheduling mode. The method further includes determining an application time of the second scheduling mode such that the terminal schedules a data channel or triggers a reference signal using the second scheduling mode when the application time arrives.

Abstract: A communication method and apparatus includes: a network device separately sends configuration parameters of power saving signaling to terminal devices. Then, the network device sends downlink control information carrying the power saving signaling to the terminal device through a physical downlink control channel based on a payload of the DCI and/or a search space set. The configuration parameter of the power saving signaling includes the payload of the DCI and the search space set. The payload of the DCI indicates a quantity of bits of the DCI. The DCI is used to carry the power saving signaling and is transmitted through the physical downlink control channel (PDCCH). The search space set is used to determine a monitoring occasion of the PDCCH.

Abstract: In a signal measurement method, user equipment (UE) receiving a periodic reference signal in a first on-duration that is in a non-active time in a discontinuous reception DRX state. After receiving the periodic reference signal in the first on-duration, the UE measures the periodic reference signal to obtain a measurement result.

Abstract: This application relates to communication methods and apparatuses. One example method includes sending, by a network device, downlink control information to a terminal device. The downlink control information includes indication information. The indication information indicates one of at least one minimum applicable slot offset (minimum K0) configured for a downlink bandwidth part (BWP) of the terminal device, or the indication information indicates one of at least one minimum applicable slot offset (minimum K2) configured for an uplink BWP of the terminal device. There is a correspondence between the minimum K0 configured for the downlink BWP and the minimum K2 configured for the uplink BWP.

Abstract: This application provides a communication method and apparatus. The method includes: A terminal device sends first indication information to a network device, where the first indication information indicates that a switching delay between a first bandwidth part BWP and a second BWP is first duration, where the first BWP and the second BWP are uplink BWPs or downlink BWPs used by the terminal device to send and receive data. In this application, the terminal device can indicate to the network device a specific switching delay between two BWPs in a serving cell, so that a BWP switching delay determining method is more flexible and a result is more accurate.

Abstract: Embodiments of this application disclose a communication transmission method and a device. The method includes: receiving, by a terminal device, a minimum scheduling slot offset indicated by a network device; receiving, by the terminal device, indication information sent by the network device; or sending, by the terminal device, indication information to the network device, where the indication information is used to determine a first receiving state used by the terminal device to detect a PDCCH; and detecting, by the terminal device, the PDCCH by using the first receiving state when the minimum scheduling slot offset is greater than 0.

Abstract: A communication method and an apparatus are provided. The method includes: A first communications device receives first DCI from a network device in first discontinuous reception active time, where the first DCI is used to indicate new uplink or downlink data transmission; the first communications device does not expect to receive a PDCCH from the network device in a first time period after the first discontinuous reception active time, where a start moment of the first time period is an end moment of the first discontinuous reception active time, and an end moment of the first time period is in second discontinuous reception active time; and the first communications device moniters the PDCCH after the first time period.

Abstract: Embodiments of this application provide a wireless communication method, device, and system. The method includes: A terminal device receives first information from a network device, where the terminal device currently uses a first BWP, and the first information indicates that in minK0 time units after the terminal device receives scheduling downlink control information (DCI), there is no downlink shared channel (PDSCH) scheduled by the scheduling DCI, and/or in minK2 time units after the terminal device receives the DCI, there is no physical uplink shared channel (PUSCH) scheduled by the scheduling DCI; the terminal device receives the scheduling DCI from the network device, where the scheduling DCI indicates the terminal device to switch from the first BWP to a target BWP; and the terminal device determines a first time period based on a bandwidth part (BWP) switch delay and the first information, where the BWP switch delay includes N time units.

Abstract: This application discloses a message transmission method. User equipment may receive a power saving message from a network device, where the power saving message carries indication information of a short message, and the short message includes at least one of the following: a public warning system notification or system information modification information. Then, the user equipment obtains the short message from the power saving message. In this way, when the user equipment is in a connected state, the user equipment may obtain the short message by using the power saving message, for example, a PoSS, instead of by monitoring a paging PDCCH; and when the UE is in a sleep state, the UE is not woken up to monitor the paging PDCCH. This reduces power consumption of the user equipment in the connected state.

Abstract: Communication methods and apparatuses are provided in this disclosure. One method includes: receiving, by a terminal device at time slot n, first downlink control information comprising a minimum slot offset value, wherein the minimum slot offset value is to be applied by the terminal device at time slot n+K, where K is a positive integer; receiving, by the terminal device at a time after the time slot n and before the time slot n+K, second downlink control information comprising the minimum slot offset value; and determining, by the terminal device, to apply the minimum slot offset value at the time slot n+K.

Abstract: This application discloses a resource configuration method, a method for determining a bandwidth part, a method for indicating a bandwidth part, and a device. The method for indicating a bandwidth part includes: determining, by a base station, the bandwidth part based on a mapping relationship between a first carrier bandwidth and a first bandwidth part set and/or a mapping relationship between a capability bandwidth of a terminal device and a second bandwidth part set, where the first bandwidth part set includes a plurality of bandwidth parts, the first bandwidth part set includes the bandwidth part, the second bandwidth part set includes a plurality of bandwidth parts, and the second bandwidth part set includes the bandwidth part; and indicating, by the base station, the bandwidth part to the terminal device.

Abstract: Embodiments of this application provide a resource configuration method, an information sending method, and an apparatus. The resource configuration method includes: configuring, by a network device for a terminal device, a plurality of resources used to transmit uplink control information UCI; configuring, by the network device, same first indication information for all of the plurality of resources; and sending, by the network device, the first indication information to the terminal device, wherein the first indication information indicates the terminal device to multiplex first UCI and second UCI, and a type of the first UCI is different from a type of the second UCI. Therefore, the terminal device can determine whether to combine the first UCI and the second UCI.

Abstract: Embodiments described provide a data transmission method, a network device, and a terminal device. The method includes: sending, by a network device, control information corresponding to target data to a terminal device on a control resource, where the control resource and a data resource have a correspondence, and the control resource is used by the terminal device to determine the data resource on which the target data is received; and sending, by the network device based on the correspondence, the target data to the terminal device on the data resource. In the embodiments, after sending the control information corresponding to the target data on the control resource, the network device can send the target data on the data resource based on the correspondence between the control resource and the data resource, so that terminal devices having different bandwidth capabilities are able to receive the target data.

Abstract: The present disclosure relates to communication methods in a UCI-only scenario. One example method includes receiving downlink control information used to schedule a PUSCH, where the PUSCH includes a first frequency hopping resource and a second frequency hopping resource, and a time-domain start symbol of the first frequency hopping resource is before a time-domain start symbol of the second frequency hopping resource, and sending first UCI on the PUSCH, where the first UCI includes at least one of an HARQ-ACK, CSI-part1, or CSI-part2, where a quantity GCSI-part1(1) of coded bits that are of the CSI-part1 in the first UCI and that are mapped onto the first frequency hopping resource is a smaller one of a fourth value and a fifth value.

Abstract: This application discloses a control information transmission method and device, and relates to the field of communications technologies, to reduce power consumption of UE. The control information transmission method provided in embodiments of this application includes: receiving, by user equipment UE, first indication information sent by a base station, where the first indication information indicates a first time window; and stopping, by the UE, monitoring a physical downlink control channel PDCCH in the first time window.

Abstract: This application provides a data transmission method and an apparatus. The method includes: receiving first DCI sent by a network device, where the first DCI includes a quantity of layers for transmitting first data through a PDSCH, and under a first condition, the quantity of layers of the first data is less than or equal to N1; and under a second condition, the quantity of layers of the first data is less than or equal to N2, N1 is less than N2, N2 is a maximum quantity of layers, for transmitting data through the PDSCH, supported by a terminal device, and N1 is a positive integer; and receiving the first data sent by the network device, and demodulating the first data based on the first DCI. Therefore reducing radio frequency power consumption of the terminal device.

Abstract: Embodiments described provide a data transmission method, a network device, and a terminal device. The method includes: sending, by a network device, control information corresponding to target data to a terminal device on a control resource, where the control resource and a data resource have a correspondence, and the control resource is used by the terminal device to determine the data resource on which the target data is received; and sending, by the network device based on the correspondence, the target data to the terminal device on the data resource. In the embodiments, after sending the control information corresponding to the target data on the control resource, the network device can send the target data on the data resource based on the correspondence between the control resource and the data resource, so that terminal devices having different bandwidth capabilities are able to receive the target data.

Abstract: This application discloses a resource configuration method, a method for determining a bandwidth part, a method for indicating a bandwidth part, and a device. The method for indicating a bandwidth part includes: determining, by a base station, the bandwidth part based on a mapping relationship between a first carrier bandwidth and a first bandwidth part set and/or a mapping relationship between a capability bandwidth of a terminal device and a second bandwidth part set, where the first bandwidth part set includes a plurality of bandwidth parts, the first bandwidth part set includes the bandwidth part, the second bandwidth part set includes a plurality of bandwidth parts, and the second bandwidth part set includes the bandwidth part; and indicating, by the base station, the bandwidth part to the terminal device.

Abstract: The present disclosure describes a physical random access channel (PRACH) preamble sending method. In one example method, access slot information is received by a user equipment (UE) from a controller. The received access slot information comprises a start access slot (AS) corresponding to each random access channel (RACH) sub-channel. ASs that start from the start AS and whose quantity is a quantity of PRACH preamble repetitions are used by the UE to send a same PRACH preamble. A PRACH preamble is repeatedly sent, by the UE, to a base station according to the received access slot information.

Abstract: The present disclosure relates to communication methods and communications apparatus. One example method includes receiving, by a terminal, configuration information sent by a network device, where the configuration information is used to indicate a resource in a plurality of candidate resources of a common search space, and the candidate resources of the common search space are determined based on one or more of a cell identity, downlink bandwidth, a frequency domain resource location of a synchronization channel, and a frequency domain resource location of a broadcast channel, and receiving, by the terminal, common control information on the resource indicated by the configuration information.