Abstract: The present disclosure discloses an example signal transmission method and an example terminal device. One example signal transmission method includes monitoring, by a terminal device and based on a size of first downlink control information (DCI), the first DCI and second DCI that are sent by a network device, where the first DCI is carried on a power saving signal shared by a plurality of terminal devices including the terminal device, and the second DCI is carried on a terminal device specific power saving signal. It is determined by the terminal device and based on at least one of the first DCI or the second DCI, whether to monitor a data channel in a first time period.

Abstract: This application relates to the mobile communications field, and in particular, to a technology for obtaining a reference signal in a wireless communications system. In a method for obtaining a reference signal, a terminal device obtains position offset information; the terminal device obtains a first sequence based on the position offset information; and the terminal device demodulates, by using the first sequence, a control channel signal carried in a control channel resource set, to obtain downlink control information. In this way, MU-MIMO transmission performance is improved.

Abstract: A communications method includes the terminal device receiving a first message from a network device, where the first message indicates a second cell, the second cell includes a first downlink carrier and a second uplink carrier, and a duplex mode of a band to which the first downlink carrier belongs is different from a duplex mode of a band to which the second uplink carrier belongs, and the terminal device accesses the second cell.

Abstract: This application discloses a message sending method, a message receiving method, an apparatus, and a device. The message sending method includes: A network device sends, by using a physical downlink control channel (PDCCH), downlink control information (DCI) with s a cyclic redundancy check (CRC) bit, wherein the DCI is in a first DCI format or a second DCI format, wherein the DCI is used to indicate to a terminal device to enter a sleep mode at a first moment. The network device receives a response message sent by the terminal device in response to the DCI.

Abstract: A resource determining method includes that a first terminal obtains transmission information from a second terminal, wherein the transmission information is used to indicate a first sidelink resource. The first terminal determines a second sidelink resource according to the transmission information, wherein a time range of the second sidelink resource does not overlap that of the first sidelink resource. The first terminal sends a first data to the second terminal on a sidelink resource of the second sidelink resource, wherein the first sidelink resource comprises a sidelink resource on which a second data is received by the second terminal.

Abstract: This application discloses a communication method and apparatus. In embodiments of this application, when a terminal device in a sleep state needs to send a scheduling request or a negative acknowledgement (NACK), the terminal device enters a wake-up state. The terminal device can receive, within a sleep time period, a physical downlink control channel that schedules a resource for the scheduling request or the NACK, without waiting for the sleep time period to end before receiving the physical downlink control channel. Therefore, power consumption of the terminal device is reduced, while it is still ensured that certain physical downlink control channel is received as early as possible, thereby reducing a delay of the physical downlink control channel.

Abstract: A data transmission method comprising: after sending first data on a first resource, a first apparatus may monitor second data on a second resource associated with the first resource. In other words, because the second resource is associated with the first resource, the first apparatus directly monitors the second data on the second resource, so that power consumption caused by blind detection can be avoided, or power consumption caused by detection based on a DRX function can be avoided, thereby reducing power consumption of the first apparatus.

Abstract: In accordance with an embodiment, a physical uplink control channel transmission method, includes: receiving a first message; and in response to a dedicated physical uplink control channel (PUCCH) not being configured for a terminal device, repeatedly transmitting a first PUCCH using a repetition quantity N, where the dedicated PUCCH is configured by a network device for the terminal device based on higher layer signaling, and N is an integer greater than 1.

Abstract: A control information transmission method, apparatus, and systems are disclosed. An example method includes: determining configuration information of a control channel, wherein the configuration information comprises at least one of frequency domain information or time domain information, the at least one of frequency domain information or time domain information indicates a time-frequency resource occupied by the control channel, and the configuration information further comprises indication information indicating a quantity of at least one resource element set, wherein the time-frequency resource occupied by the control channel comprises the at least one resource element set; mapping control information to one or more of the at least one resource element set based on the configuration information; sending the configuration information to a terminal device; and sending the control information to the terminal device.

Abstract: This application discloses a method and an apparatus for sending indication information. The method includes: A network device determines a location of first indication information in at least one piece of second indication information based on first information. The first information includes at least one of identification information of a first terminal device and time information of a first preset time period, the first terminal device is one of to-be-woken-up terminal devices that are within a discontinuous reception outside active time period, and the first indication information indicates the first terminal device to enter an inside active time period within a preset time period. The network device sends the second indication information on a time-frequency resource corresponding to the first preset time period. The second indication information indicates at least one to-be-woken-up terminal device to enter an inside active time period within a corresponding time period.

Abstract: A communication method includes receiving a paging message, wherein the paging message comprises a first identifier. The first identifier is useable to identify a paged first terminal device. A bit length of the first identifier is less than a bit length of a second identifier. The second identifier is a 5th generation-system-temporary subscriber identity (5G-S-TMSI) or a radio network temporary identity (I-RNTI). The communication method further includes determining, based on the first identifier, that the first terminal device is paged.

Abstract: The present disclosure relates to communication methods and communication apparatus. One example method includes determining a quantity and a position of control channel element (CCE) used by a control channel of user equipment, where each of the CCE corresponds to a plurality of resource element groups (REGs), the plurality of REGs form at least one REG bundle, and any REG bundle in the at least one REG bundle includes a plurality of resource blocks (RBs) that are consecutive or adjacent in at least one of time domain or frequency domain, and receiving, from a network device, the control channel by using the CCE.

Abstract: A communications method and apparatus are provided. The method includes: determining one or more occasions on which a first channel is sent; and sending the first channel on the one or more occasions to at least one terminal device. The first channel carries first information. The first information includes one or more information blocks. Each information block corresponds to one of the at least one terminal device. Each information block corresponds to a different terminal device. Each information block includes one first information field set that is used to indicate information about detection performed on a second channel by a terminal device corresponding to the information block in which the first information field set is located.

Abstract: Embodiments of this application relate to the field of communication technologies, and provide a communication method and apparatus to indicate, by using limited bits in paging DCI or PEI, a plurality of reference signal resource sets or SSBs corresponding to a plurality of reference signals. The method includes: A terminal device receives, from a network device, first DCI that includes reference signal availability indication information, and determines, based on the first DCI, whether a reference signal is sent. The reference signal availability indication information includes one or more indication bits. Each indication bit is associated with one or more reference signal resource sets, or associated with one or more SSBs.

Abstract: This application relates to a communication method and device. A first terminal device receives at least one message for reserving a resource, and the first terminal device determines, from S resources based on the at least one message, M resources whose signal strengths do not meet a first signal strength threshold. The first terminal device adjusts the first signal strength threshold if M does not meet a first resource quantity or S-M does not meet a first resource quantity. The first terminal device sends a first message to a second terminal device, where the first message indicates a resource determined based on an adjusted signal strength threshold, and the adjusted signal strength threshold enables M or S-M to meet the first resource quantity.

Abstract: A terminal device receives a first system information change indication on a WUR link, and/or determines, on the WUR link, that a cell is changed, where the first system information change indication indicates that system information is changed. The terminal device receives the system information on an NR link if the system information is changed, before establishing or restoring a connection on the NR link. If the terminal device determines that the system information is not changed, the terminal device may not need to receive the system information. For example, the terminal device may directly establish or restore the connection on the NR link when the terminal device does not need to receive the system information.

Abstract: Embodiments of this application provide an information transmission method and an apparatus. The method may include: A terminal device receives area identification information from a network device through a first frequency resource; and the terminal device performs an area update procedure or receives system information based on the area identification information through a second frequency resource. According to this application, transmitting common information on a WUR link can prolong working duration of the terminal device on the WUR link, improve energy saving benefit, and reduce an access delay of the terminal device.

Abstract: This disclosure relates to the field of wireless communications technologies, and in particular, to an information transmission apparatus, method, and system. In a communications apparatus provided in an embodiment, a processing module is configured to determine a frame structure of a serving cell. In the determined frame structure, one radio frame includes at least one first subframe. The first subframe includes: a first part that includes a symbol used for downlink transmission; a second part that includes a guard period GP; and a third part that includes a symbol used for uplink transmission, and the uplink transmission includes uplink control information transmission; and a transceiver module is configured to send and receive information in the serving cell. The third part is used for uplink control information transmission.

Abstract: This specification discloses a wake-up signal sending method and an apparatus, so that UE may accurately identify information in a WUR signal received via a wake-up circuit. The method may include designing a first time domain resource that is in the following format and that is used to transmit a wake-up signal: The first time domain resource includes N first time units with a preset length, one wake-up signal occupies at least one of the N first time units with the preset length, N is a positive integer, and a boundary location of the first time unit is determined based on a time domain location of a synchronization signal, so that a boundary location of the wake-up signal is determined, and a terminal prepares for identifying the wake-up signal.

Abstract: Embodiments of this application provide a signal transmission method and an apparatus. The method may include: A terminal device determines a periodicity of a synchronization signal; and the terminal device periodically receives the synchronization signal based on the periodicity of the synchronization signal through a first frequency resource, where the first frequency resource is further used to transmit a wake-up signal, and the wake-up signal indicates information about one or more terminal devices that need to receive paging.