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.

Abstract: Communication methods and apparatuses are provided. In an implementation, a method includes: determining first information and second information, wherein the first information comprises a first measurement duration and a first measurement period, and the second information comprises a second measurement duration and a second measurement period, applying the first measurement period and the first measurement duration to perform radio resource management (RRM) measurement on a first-type cell, and applying the second measurement period and the second measurement duration to perform the RRM measurement on a second-type cell.

Abstract: Communication methods and apparatuses are provided. In an example method, a terminal device receives first indication information from a network device, where the first indication information indicates a first physical uplink control channel (PUCCH) resource set; and the terminal device determines the first PUCCH resource set based on the first indication information. The first PUCCH resource set is different from a second PUCCH resource set, or the first PUCCH resource set is partially the same as a second PUCCH resource set. The first PUCCH resource set is configured for a first-type terminal device, while the second PUCCH resource set is configured for a second-type terminal device. A maximum bandwidth supported by the first-type terminal device is less than a maximum bandwidth supported by the second-type terminal device.

Abstract: This application discloses a network device accessing method and an apparatus, and relates to the wireless communication field, to control a number of reduced capability (reduced capability, REDCAP) terminals accessing a network device, and improve network transmission performance. The method includes: A terminal apparatus receives, from a network device, first information indicating whether a REDCAP terminal is allowed to access the network device, and determines, based on the first information, whether to access the network device. The REDCAP terminal includes a first-type REDCAP terminal and a second-type REDCAP terminal, the first-type REDCAP terminal and the second-type REDCAP terminal operate in a same frequency range, and a bandwidth of the second-type REDCAP terminal is less than that of the first-type REDCAP terminal and/or a number of receive antennas of the second-type REDCAP terminal is less than that of the first-type REDCAP terminal.

Abstract: In an embodiment a method for enhancing a physical downlink control channel, the method includes obtaining, by a terminal device, control-resource set (CORESET) configuration information, wherein the CORESET configuration information is used for configuring a time-domain resource and a frequency-domain resource of a CORESET, wherein the time-domain resource comprises X time-domain symbols, wherein the X time-domain symbols are consecutive in time domain, wherein X is an integer greater than or equal to 1 and less than or equal to M, and wherein M is an integer greater than or equal to 4 and determining, by the terminal device, a physical downlink shared channel (PDSCH) time-domain resource configuration set based on the X time-domain symbols, wherein the PDSCH time-domain resource configuration set is for PDSCH time-domain resource allocation.

Abstract: A communication method includes determining, by a terminal device, a first frequency domain resource, and performing a first-type operation on the first frequency domain resource. The first-type operation includes at least one of radio resource management (RRM) measurement, radio link measurement, or receiving first information. The first information is useable to indicate that the terminal device is configured to perform a second-type operation on a second frequency domain resource, and the second-type operation is different from the first-type operation.

Abstract: A frequency domain resource determination method, a device, and a storage medium.

Abstract: A communication method and apparatus are provided, which relate to the field of communication technologies, to improve communication performance of a terminal device and improve resource utilization of a communication system. The method includes: a terminal device receives measurement information from a network device, where the measurement information indicates one or more measurement objects, and the measurement information includes one or more of the following: information about a measurement object of a serving cell, information about intra-frequency measurement of a neighboring cell, and information about inter-frequency measurement of a neighboring cell; and the terminal device performs, based on a reference signal associated with one or more measurement objects corresponding to a first bandwidth part (BWP), one or more of the following measurements: radio resource management (RRM) measurement, radio link monitoring (RLM) measurement, and beam failure recovery (BFR) measurement.

Abstract: This application provides an uplink signal sending method, an apparatus, and a system, and generally relates to the field of communications technologies. The uplink signal sending method includes obtaining first indication information, and determining, based on the first indication information, whether to send an uplink signal on a supplementary uplink (SUL) or an uplink (UL). The first indication information is used to indicate a SUL available time, and the SUL available time is a time in which an uplink signal can be sent on an SUL carrier in a preset period. The method is applied to a procedure in which an uplink signal is sent by using an uplink carrier, to improve flexibility in an uplink signal sending process.

Abstract: Embodiments of this application relate to the communications field, and provide an information sending and receiving method, an apparatus, and a system, to reduce resource overheads used by a (reduced-capability) terminal device to report a capability parameter. The method is as follows: A terminal device sends first information to a network device, where the first information indicates that the terminal device is a first-type terminal device, a capability parameter corresponding to the first-type terminal device includes a first capability set, the first capability set includes a channel bandwidth supported by the terminal device and a quantity of transmit antennas of the terminal device, the channel bandwidth of the terminal device is less than 100 megahertz, and the quantity of transmit antennas of the terminal device is less than 4. Embodiments of this application are applied to a massive machine-type communications mMTC service scenario or another service scenario of 5G NR.