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 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: 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: This application discloses a communication method and apparatus. A terminal device receives first information from a network device. The first information indicates that the terminal device is to skip PDCCH blind detection. The terminal device determines a start moment of a first time period based on the first information. The terminal device stops the PDCCH detection within the first time period from the start moment of the first time period. The terminal device determines a time from which the PDCCH detection is actually stopped, so that the network device and the terminal device can have consistent understanding for the time from which the terminal device actually stops the PDCCH detection, to improve resource utilization and reduce power consumption of the terminal device.

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: Disclosed are a method and an apparatus for sending and receiving a reference signal set. The method includes: sending, by a network device, configuration information for a reference signal set; and sending, by the network device, the reference signal set based on the configuration information, where the reference signal set is associated with a PF, and in time domain, the reference signal set is after a synchronization signal burst set and before a first PO in the PF. Therefore, when a time gap between the synchronization signal burst set and a PO for a terminal device is relatively long, the terminal device may perform AGC tuning, time/frequency tracking, beam selection, and RRM measurement based on the reference signal set, to reduce wake-up times of the terminal device or reduce a wake-up duration of the terminal device, thereby reducing power consumption of the terminal device.

Abstract: This application provides a communication method and a communications apparatus. The method includes: determining, based on a receiving status of a first power saving signal, that a PDCCH is not detected within a first DRX cycle; and performing, in a first time period within the first DRX cycle, RRM measurement on a CSI-RS sent by a network device. This application can ensure sufficient RRM measurement opportunities for a terminal device, ensure accuracy of RRM measurement, and prevent introduction of a concept “power saving signal” from affecting mobility RRM measurement performed by the terminal.

Abstract: This application discloses a measurement method and apparatus, and a device. The method includes: the terminal device divides all neighbors detected on a same measurement frequency into at least two measurement groups, and performs RRM measurement separately on the at least two measurement groups based on an RRM measurement parameter corresponding to each measurement group, where the at least two measurement groups are in a one-to-one correspondence with at least two RRM measurement parameters, and the terminal device has different power consumption when performing RRM measurement on the at least two measurement groups based on the corresponding RRM measurement parameters.

Abstract: The technology of this application relates to communications systems. In one example, a network device sends a first message to a terminal device, where the first message includes configuration information of a reference signal resource. The network device sends a second message to the terminal device, where the second message includes a first bit field and/or a second bit field, the first bit field is used to indicate an availability status of the reference signal resource, and the second bit field is used to indicate that the terminal device uses a synchronization signal/physical broadcast channel resource block signal resource and/or the reference signal resource.