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.

Abstract: Embodiments of the present invention provide a bandwidth allocation method and apparatus, user equipment, and a base station. The method includes: receiving, by user equipment, virtual bandwidth configuration information, where the virtual bandwidth configuration information is used for indicating a configuration of a virtual bandwidth; and performing, by the user equipment, signal reception and/or signal processing according to the virtual bandwidth indicated by the virtual bandwidth configuration information, where each virtual bandwidth is a part or all of a downlink maximum available bandwidth or a downlink transmission bandwidth, and the downlink maximum available bandwidth is a maximum bandwidth available for downlink transmission. In the embodiments of the present invention, reduction of overheads and reduction of complexity of signal reception and signal processing are implemented, and overheads and complexity of signal reception and processing feedback can be flexibly controlled.

Abstract: This application provides a communication method and apparatus. The method includes: receiving, in a first control resource set or a second control resource set, first signaling from the network device, and adjusting the second control resource set based on the first signaling, where the first signaling indicates a quantity of symbols occupied by the second control resource set. Signaling that indicates a quantity of symbols of a CORESET is sent in a control resource set (for example, the first control resource set or the second control resource set). This helps implement flexible indication of a CORESET resource, so that a service requirement can be more quickly matched, and user experience can be improved.

Abstract: A power saving method includes: sending, by a terminal device, first information to a network device, where the first information is used to indicate processing time for the terminal device to process to-be-processed information; and configuring, by the network device, a time domain resource for the to-be-processed information based on the first information, and sending second information to the terminal device, where the second information is used to indicate the time domain resource. After receiving the second information, the terminal device adjusts the foregoing processing time based on the time domain resource indicated by the second information, to relax a clock of each module corresponding to the processing time. Thereby, a terminal device power saving is implemented. In addition, the network device configures the time domain resource based on the processing time of the terminal device that is indicated by the first information.

Abstract: This application provides a control channel detection method, apparatus, and device. The method includes: A terminal device determines that resources of at least two candidate control channels overlap, where any two of the at least two candidate control channels are located in different search spaces; and the terminal device detects only at least one first candidate control channel in the at least two candidate control channels. This improves control channel detection reliability.

Abstract: A method and an apparatus are provided. In the method, first discontinuous reception DRX configuration information is obtained; first cycle duration T1 of a first DRX cycle, a quantity N1 of first on-duration periods in the first DRX cycle, and duration of the first on-duration period are obtained based on the first DRX configuration information, where T1>0 and N1>0; and a physical downlink control channel PDCCH is monitored in one or more first on-duration periods in the first DRX cycle based on the first cycle duration T1, the quantity N1 of first on-duration periods, and the duration of the first on-duration period. According to the method, an on-duration period in a DRX cycle can match an arrival cycle of data.

Abstract: A terminal device receives first downlink control information (DCI) sent by a network device, where the first DCI carries first indication information and second indication information. The first indication information is used to indicate data transmission, and the second indication information is used to indicate an operation mode of an inactivity timer in discontinuous reception (DRX). The terminal device determines an operation mode of the inactivity timer based on the second indication information.

Abstract: A control information sending/receiving method and device are provided, to implement indicating a time-frequency location of a control channel to a terminal device in a 5G NR system or a future evolved LTE system. The method includes: receiving, by a terminal device, broadcast information; determining, from at least two predefined time-domain locations, a time-domain location of a broadcast channel carrying the broadcast information; determining a time-domain location of a control channel based on the time-domain location of the broadcast channel; and performing control channel detection in the determined time-domain location of the control channel.

Abstract: This application provides a communication method and apparatus. The method includes: A terminal device receives a first signal from a network device; the terminal device receives a second signal based on the first signal; and if the terminal device does not receive the first signal in a first time period, the terminal device receives a third signal. Both the second signal and the third signal indicate paging-related information. If the terminal device does not receive the first signal in the first time period, the terminal device determines to receive the paging-related information by using a procedure of receiving the third signal.

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 one example 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. 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.

Abstract: This application provides a wireless communication method and an apparatus. In the method, a terminal device receives first indication information from a network device. The first indication information indicates a first maximum multiple-input multiple-output (MIMO) layer quantity N to be used by the terminal device when the terminal device performs wireless communication, where N is an integer greater than or equal to 1. The method further includes that the terminal device performs wireless communication with the network device based on the first maximum MIMO layer quantity N, so that the maximum MIMO layer quantity that the terminal device should use can be adjusted as required.

Abstract: A communication method for using an unlicensed frequency band is provided. The method includes: A first wireless device receives first indication information in a first time unit, where the first indication information is used to indicate a second wireless device to transmit data in a second time unit, or the first indication information is used to indicate a second wireless device not to transmit data in a second time unit, where the second time unit is a preset time unit used by the second wireless device to transmit data.

Abstract: The method includes: sending first resource information on a first sidelink transmission channel, where the first resource information indicates a first resource; and receiving indication information on a second sidelink transmission channel, where the indication information indicates at least one second resource in the first resource; or receiving data sent on a second resource, where the second resource is determined based on the first resource.

Abstract: This application discloses a control information sending method, a control information receiving method, an apparatus, and a storage medium, applied to a communication system. The control information sending method includes: sending at least one piece of downlink control information and a corresponding downlink physical shared channel, where the downlink control information carries a count sequence number; and receiving feedback information from user equipment, where the feedback information includes DCI miss-detection information, the count sequence number indicates an accumulated quantity of uplink control information, the uplink control information corresponds to a downlink physical shared channel scheduled by using the downlink control information, and the uplink control information is used to transmit the feedback information.

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 scheduling request transmission method includes a terminal device that, when a first uplink channel exists in a first time domain range, combines a scheduling request with information included in the first uplink channel to obtain first information, and transmits the first information to a network device. The first time domain range is related to a time domain position of a physical uplink control channel (PUCCH) including the scheduling request, and the first uplink channel is any one of, a PUCCH including a hybrid automatic repeat request (HARQ) feedback, a PUCCH including a channel state information (CSI) report, or a physical uplink shared channel (PUSCH).

Abstract: A transmission method is disclosed. A terminal device transmits uplink control information to a network device through a PUSCH when a time domain location of a PUCCH including the uplink control information is between that of DCI and that of a PUSCH; or a time domain location of a PUSCH is before that of a PUCCH, and a time domain length between a time domain location of a PDSCH corresponding to the uplink control information and the time domain location of the PUSCH is greater than or equal to a first time domain length; or a time domain location of a PUSCH is before that of a PUCCH, and a time domain length between a time domain location of a CSI-RS corresponding to the uplink control information and the time domain location of the PUSCH is greater than or equal to a second time domain length.

Abstract: This application discloses methods an apparatuses for sending and receiving uplink control information in the field of communications technology. In some implementations, a terminal device may receive first downlink control information (DCI) from a network device; determine, based on the received first DCI, that an uplink shared channel scheduled by using the first DCI is used to send only uplink control information (UCI); and send first UCI to the network device through the uplink shared channel scheduled by using the first DCI. In other words, the network device indicates to the terminal device by using DCI so that the terminal device can determine, based on an indication of the network device, whether the uplink shared channel scheduled by using the DCI is used to send only the UCI.