Abstract: The present disclosure provides example signal sending and receiving methods, apparatuses, and devices. One example signal sending method includes a network device sending a first wake-up signal to indicate a terminal device to receive a first data channel, where the first data channel carries at least one of a paging message or a short message, and the short message indicates at least one of whether a system message changes or whether to receive earthquake and tsunami warning system (ETWS) information or commercial mobile alert service (CMAS) information. The first data channel is sent by the network device.

Abstract: This application provides a communication method and apparatus, applicable to the communication field, and in particular, to scheduling terminal devices corresponding to different bandwidth sizes or different capabilities. The method includes: A terminal apparatus receives first indication information from a network apparatus. The terminal apparatus receives target system information and/or target downlink control information from the network apparatus on a target frequency domain resource, where a bandwidth size of the target frequency domain resource is less than or equal to a bandwidth size supported by the terminal apparatus, and the target downlink control information is used to schedule the target system information.

Abstract: An apparatus includes one or more processors and a memory having instructions stored thereon that, when executed by the one or more processors, cause the apparatus to receive a first wake-up signal. The first wake-up signal is one of K wake-up signals, K is an integer greater than or equal to 1, and the K wake-up signals are quasi co-located with K synchronization signal blocks (SSBs), K channel state information-reference signals (CSI-RSs), or K demodulation reference signals (DMRSs). The apparatus is also caused to determine M paging occasions. There is a correspondence between the K wake-up signals and the M paging occasions, and M is an integer greater than or equal to 1. The apparatus is further caused to receive, on the M paging occasions, downlink control information (DCI) used for paging.

Abstract: A network device sends first indication information to a first terminal; and the first terminal sends a system information request based on the first indication information, where the first indication information indicates to send the system information request based on first resource configuration information by using a Msg 1; or the first indication information indicates to send the system information request by using a Msg 3.

Abstract: A physical downlink control channel PDCCH transmission method and apparatus is provided. The method includes: A network device sends first indication information to a terminal device, where the first indication information may include configuration information of a PDCCH, the configuration information of the PDCCH is used to indicate at least one repeated transmission configuration manner, which includes a first repeated transmission configuration manner. The repeated transmission configuration manner includes at least one of a quantity of repetitions of the PDCCH and an aggregation level that is of the PDCCH and that corresponds to the quantity of repetitions. The network device may send the PDCCH to the terminal device based on the first repeated transmission configuration manner. According to this method, a sending effect of a PDCCH at a higher aggregation level can be implemented through repeated sending of a plurality of PDCCHs at lower aggregation levels.

Abstract: An example methods is provided, for example performed by an example terminal device, and example apparatuses. An example method includes receiving, by a terminal device, configuration information of a bandwidth part (BWP) from a network device. The BWP comprises a first bandwidth and a second bandwidth. The first bandwidth is determined based on a radio frequency bandwidth of the terminal device. The second bandwidth is determined based on a baseband bandwidth of the terminal device. The example method further includes communicating, by the terminal device, with the network device by using the BWP.

Abstract: A terminal device determines a physical resource block PRB position of a resource corresponding to a physical uplink control channel PUCCH; and the terminal device sends the PUCCH based on the PRB position, wherein the PRB position satisfies RBBWPoffset+?rPUCCH/NCS? or NBWPsize?1?RBBWPoffset??rPUCCH/NCS?, rPUCCH is a PUCCH resource index, NCS is a quantity of cyclic shifts of a common PUCCH resource set, RBBWPoffset is a frequency domain offset value of the common PUCCH resource set, and NBWPSize is a size of a bandwidth part configured with a PUCCH resource.

Abstract: Embodiments of this application provide a communication method and apparatus. The method includes: A terminal device determines a quantity of resource blocks (RBs), occupied by a first control resource set in frequency domain within a first bandwidth and a frequency domain start position of the first control resource set, and a quantity of RBs occupied by a second control resource set in frequency domain within a second bandwidth and a frequency domain start position of the second control resource set, and the quantity of RBs of the first control resource set in frequency domain is less than a minimum quantity of RBs of the second control resource set in frequency domain; and receives a physical downlink control channel (PDCCH) in the first control resource set, wherein the PDCCH is for scheduling a system information block 1, which can improve transmission performance of the PDCCH.

Abstract: This application discloses a signal sending method, a signal receiving method, and a communication apparatus. The method includes: A network device determines a first SSB and a second SSB, sends the first SSB in a first BWP, and sends the second SSB in a second BWP. Transmit power of the first SSB is different from transmit power of the second SSB. The first BWP may be considered as a BWP of a first-type terminal device, and the second BWP may be considered as a BWP of a second-type terminal device. The network device may send the first SSB in the first BWP, and send the second SSB in the second BWP. The second-type terminal device obtains an SSB from the network device without switching from the second BWP to the first BWP, to reduce a quantity of BWP switching times, so as to reduce power consumption.

Abstract: This application provides a communication method and a communication apparatus. A terminal device determines a first physical resource, and receives a first PBCH and a first PBCH DMRS on the first physical resource. Correspondingly, a network device maps the first PBCH to the first physical resource, and sends the first PBCH, where the first physical resource is a physical resource occupied by the first PBCH and the first PBCH DMRS in a first SSB, and the first SSB occupies four symbols in time domain and occupies X subcarriers in frequency domain, where X is a positive integer greater than 127 and less than 240.

Abstract: This application provides a communication method and apparatus, to resolve a problem of receiving and sending an SSB in a bandwidth-limited network such as a dedicated network. The method includes: generating a sequence corresponding to a first synchronization signal/physical broadcast channel block (SSB), and determining a first SSB frequency location; and sending, based on the determined first SSB frequency location, the sequence corresponding to the first SSB. The first SSB frequency location is associated with bandwidth of a network in which the first SSB is located, or the first SSB frequency location is related to at least one of a lowest frequency of a network or a highest frequency of the network.

Abstract: This application relates to a configuration method and a communication apparatus. The configuration method includes: receiving first configuration information from a network device, where the first configuration information is used to configure a plurality of first channel bandwidths; and receiving second configuration information from the network device, where the second configuration information is used to configure a plurality of first bandwidth parts BWPs, the plurality of first BWPs include at least two second BWPs with a same SCS, and the SCS of the second BWP is the same as the SCS corresponding to the second channel bandwidth. According to the configuration method of this application, a terminal device may determine a plurality of associated BWPs (namely, BWPs with a same SCS) in a channel bandwidth configured by the network device, to reduce a switching delay of the terminal device switching between two associated BWPs.

Abstract: This application provides a communication method and a communication apparatus. The method includes: sending first configuration information to a plurality of terminal devices, where the first configuration information is used to configure the plurality of terminal devices to detect paging early indication information on a first bandwidth unit, and the paging early indication information indicates to detect or not to detect paging indication information; and sending a reference signal on the first bandwidth unit, where the reference signal is used by the plurality of terminal devices to perform time synchronization and/or frequency synchronization with a network device, to reduce power consumption of a terminal device.

Abstract: A communication method and apparatus. The method includes: sending configuration information of a first initial uplink bandwidth part (BWP) to a first terminal device of a first type, and sending configuration information of a second initial uplink BWP to a second terminal device of a second type; and sending first information to at least one of the first terminal device or the second terminal device, where a first frequency domain resource indicated by the first information is in a frequency domain range of the first initial uplink BWP and is used for sending a third message (Msg3); and a second frequency domain resource indicated by the first information is in a frequency domain range of the second initial uplink BWP and used for sending a Msg3.

Abstract: This application provides a data transmission method. The method includes: sending uplink information of a first terminal device on a first resource, where the uplink information includes a preamble, the preamble is a preamble that is in the first resource and that can be used for a first terminal type, a type of the first terminal device is the first terminal type, the first resource corresponds to a preamble that can be used for N1 terminal types, and physical uplink shared channel resource units PRUs corresponding to preambles that can be used for different terminal types are different; or the first resource is a PRU that can be used for a first terminal type, a type of the first terminal device is the first terminal type, and PRUs that can be used for different terminal types are different.

Abstract: This application provides a communication method and apparatus, to improve convenience of measuring a reference signal on a bandwidth part (BWP), and improve measurement efficiency. A terminal device receives configuration information, where the configuration information indicates M reference signals configured on a first bandwidth part (BWP), the first BWP includes N starting resource block (RB) locations, N is a positive integer greater than 1, and M is a positive integer greater than or equal to 1; and the N starting RB locations of the first BWP are different. The terminal device measures at least one of the M reference signals on a BWP corresponding to the N starting RB locations of the first BWP, where in a same time unit, one of the N starting RB locations is used to measure the at least one of the M reference signals.

Abstract: This application provides a communication method and apparatus, to improve communication performance of a terminal device. The method includes: determining to perform transmission in a frequency hopping transmission manner; and when transmission is performed in a repeated transmission manner, sending a third message (Msg3) or a message A (MsgA) in a random access procedure in an inter-slot frequency hopping and repeated transmission manner; and/or when transmission is performed in a non-repeated transmission manner, sending the Msg3 or the MsgA in an intra-slot frequency hopping and non-repeated transmission manner.

Abstract: In accordance with an embodiment, a communication method includes: receiving first configuration information from a network device, wherein the first configuration information is configured to be used to configure a first uplink bandwidth part (BWP) and a second uplink BWP, the first uplink BWP does not include an active first uplink control channel resource, the second uplink BWP includes a first uplink control channel resource, and the first uplink BWP and the second uplink BWP are on a same uplink carrier; and determining the first uplink BWP and the second uplink BWP based on the first configuration information.

Abstract: The present disclosure relates to data transmission methods and apparatuses. One example method includes receiving first information from a network device on a first frequency domain resource, where the first information indicates to switch to a second frequency domain resource, determining a first time unit based on the first information, where the first time unit includes a second time unit, switching from the first frequency domain resource to the second frequency domain resource in the second time unit, and performing data transmission on at least one of the first frequency domain resource or the second frequency domain resource in a period of time other than the second time unit in the first time unit.

Abstract: This application relates to the field of communication technologies, and provides a physical broadcast channel PBCH receiving method and apparatus, to improve PBCH information demodulation performance when a bandwidth of a terminal device is less than an SSB bandwidth in an NR system. The method includes: A terminal device separately receives, on time domain resources of at least two physical broadcast channels PBCHs, the PBCHs on different frequency domain resources, where frequency domain resources of the at least two PBCHs are the same; and performs combination processing on the PBCHs received on the different frequency domain resources.