Abstract: Embodiments of this application provide an information sending and receiving method and a communications device. The method includes: A network device configures first information. The first information includes a first field and/or a second field, the first field includes information indicating an energy saving state of a terminal device, and the second field includes information indicating a time length in which the terminal device maintains the energy saving state. Then, the network device sends the first information to the terminal device. In addition, the method includes: The terminal device receives the first information sent by the network device. Then, the terminal device reads the first field and/or the second field, and adjusts the energy saving state of the terminal device based on information obtained through reading. The technical solution provided in the embodiments of this application can reduce energy consumption of the terminal device to some extent.

Abstract: This application provides a signal monitoring method and an apparatus, to reduce power consumption of a terminal device. The method includes: receiving, by a terminal device, a downlink signal; and monitoring, by the terminal device, a first type of signal in the downlink signal, where the first type of signal is a signal used to indicate power consumption reduction information, the terminal device does not monitor a second type of signal when monitoring the first type of signal, and the second type of signal is a signal used to indicate data scheduling.

Abstract: This application provides a signal monitoring method and an apparatus. An example method includes: detecting a second signal in a downlink signal, where the second signal is a first type of signal, and the first type of signal is a downlink control information (DCI) and the first type of signal indicates power consumption reduction information; and determine, based on the second signal and a mapping relationship between at least one bit value in the first type of signal and at least one meaning of the power consumption reduction information, a meaning of power consumption reduction information indicated by the second signal, wherein the meaning of power consumption reduction information indicated by the second signal is one of at least one meaning of the power consumption reduction information in the mapping relationship.

Abstract: A configuration method includes receiving, by a terminal device, configuration information from a network device, where the configuration information includes a first discontinuous reception (DRX) parameter and a second DRX parameter, and communicating, by the terminal device, with the network device on a first bandwidth part (BWP) using the first DRX parameter or on a second BWP using the second DRX parameter.

Abstract: A resource allocation method and apparatus are provided. The method includes: sending, by a network device, first information to user equipment, where the first information is used to indicate uplink resources corresponding to autonomous uplink transmission performed by the user equipment; and sending, by the network device, second information to the user equipment, where the second information is used to indicate a resource that is in the uplink resources and that is actually used by the user equipment to perform autonomous uplink transmission. In this application, the uplink resources corresponding to autonomous uplink transmission are allocated while resource utilization is ensured.

Abstract: A resource allocation method and apparatus, and a system include sending, by a network device, first information to a user equipment, where the first information is for indicating uplink resources corresponding to autonomous uplink transmission performed by the user equipment, and sending, by the network device, second information to the user equipment, where the second information is for indicating a resource that is in the uplink resources and that is used by the user equipment to perform autonomous uplink transmission.

Abstract: A method for determining a hybrid automatic repeat request (HARQ) feedback resource includes determining, by a transmit end, the HARQ feedback resource of a receive end based on processing capability information of the receive end of a priority of data transmitted between the transmit end and the receive end, where the HARQ feedback resource carries HARQ information corresponding to the data transmitted between the transmit end and the receive end, and sending, by transmit end to the receive end, indication information indicating the HARQ feedback resource.

Abstract: A method for determining a feedback resource in a sidelink includes a first terminal sending SCI to a second terminal, where the SCI includes indication information. The indication information is used to indicate a first resource or a first resource window to be occupied for sending hybrid automatic repeat request HARQ feedback information by the second terminal, and the first resource window includes a plurality of candidate first resources. The method further includes the first terminal receiving, on the first resource, the HARQ feedback information sent by the second terminal, or monitors, in the first resource window, the HARQ feedback information sent by the second terminal.

Abstract: Embodiments of this application disclose a channel measurement method and device. The method includes: receiving, by an access network device, a sounding reference signal (SRS) from a terminal device; receiving, by the access network device from the terminal device, a power adjustment factor used by first antenna ports, where the first antenna ports are antenna ports used by the terminal device to send a data signal; determining, by the access network device, a first uplink channel based on the SRS; and determining, by the access network device, a target channel based on the first uplink channel and the power adjustment factor used by the first antenna ports, where the target channel is a target uplink channel or a target downlink channel.

Abstract: Embodiments of this application provide an information sending and receiving method and a communications device. The method includes: A network device configures first information. The first information includes a first field and/or a second field, the first field includes information indicating an energy saving state of a terminal device, and the second field includes information indicating a time length in which the terminal device maintains the energy saving state. Then, the network device sends the first information to the terminal device. In addition, the method includes: The terminal device receives the first information sent by the network device. Then, the terminal device reads the first field and/or the second field, and adjusts the energy saving state of the terminal device based on information obtained through reading. The technical solution provided in the embodiments of this application can reduce energy consumption of the terminal device to some extent.

Abstract: A method includes: receiving, by a terminal device, indication information on a first serving cell; and performing, by the terminal device, first processing if the indication information indicates not to monitor a PDCCH, where the first processing includes at least one of the following: not monitoring a PDCCH on at least one second serving cell or not monitoring a PDCCH for the at least one second serving cell; or performing, by the terminal device, second processing if the indication information indicates to monitor a PDCCH, where the second processing includes at least one of the following: monitoring a PDCCH on at least one second serving cell or monitoring a PDCCH for the at least one second serving cell.

Abstract: A subframe scheduling method and a base station are disclosed. The method is applied to the base station and includes: when preempting an unlicensed carrier, obtaining, by the base station, a starting position of the preempted unlicensed carrier; determining a first number and a type of a first subframe based on the starting position, where the first number is a symbol number corresponding to the starting position that is used by the base station to send data, and the first subframe is a subframe in which a symbol corresponding to the first number is located; and sending the type of the first subframe and the first number to a terminal. In embodiments of the present invention, a processing process of the terminal can be simplified.

Abstract: This application discloses a communication methods and a communications apparatuses. In a method, a network device sends first information to a terminal, where the first information is used to indicate a first search space, a second search space, a first monitoring parameter, and a second monitoring parameter. The first monitoring parameter is a monitoring parameter for monitoring a physical downlink control channel (PDCCH) in the first search space, the second monitoring parameter is a monitoring parameter for monitoring a PDCCH in the second search space, and the first search space is different from the second search space; or, the first search space is the same as the second search space but the first monitoring parameter is different from the second monitoring parameter.

Abstract: A configuration method includes receiving, by a terminal device, configuration information from a network device, where the configuration information includes a first discontinuous reception (DRX) parameter and a second DRX parameter, and communicating, by the terminal device, with the network device on a first bandwidth part (BWP) using the first DRX parameter or on a second BWP using the second DRX parameter.

Abstract: This application provides a signal monitoring method and an apparatus, to reduce power consumption of a terminal device. The method includes: receiving, by a terminal device, a downlink signal; and monitoring, by the terminal device, a first type of signal in the downlink signal, where the first type of signal is a signal used to indicate power consumption reduction information, the terminal device does not monitor a second type of signal when monitoring the first type of signal, and the second type of signal is a signal used to indicate data scheduling.

Abstract: An interference coordination method includes: determining, by a first cell, first configuration information of the first cell. The first configuration information includes a parameter for transmitting uplink control information UCI by a terminal served by the first cell, the parameter included in the first configuration information is a parameter configured for the first cell and is a parameter orthogonal to a parameter configured for a second cell, and the second cell is a neighboring cell of the first cell; and notifying, by the first cell, the first configuration information to the served terminal.

Abstract: A data sending method includes determining, by user equipment, a narrowband time-frequency resource scheduled by a base station. The method further includes performing, by the user equipment, clear channel assessment CCA channel detection on the narrowband time-frequency resource to obtain a channel energy value of the narrowband time-frequency resource. The method further includes determining, by the user equipment, whether the channel energy value is less than a preset energy threshold. When the channel energy value is less than the preset energy threshold, the method includes sending, by the user equipment, uplink data to the base station on the narrowband time-frequency resource.

Abstract: An uplink transmission method based on a licensed-assisted access (LAA) system, and an apparatus, where the method includes reserving, for a transmission burst transmitted on an unlicensed carrier, at least one single-carrier frequency-division multiple access (SC-FDMA) symbol in a subframe of an uplink transmission burst corresponding to the transmission burst, where in the reserved at least one SC-FDMA symbol, user equipment (UE) accesses a channel using a listen-before-talk (LBT) access mechanism. Hence, a time gap for accessing the channel through LBT can be reserved for another UE in the uplink transmission burst. This improves a probability of successfully accessing the channel by another UE such that a plurality of UEs in an LAA communications system can perform uplink multiplexing.

Abstract: A random access method and an apparatus include performing listen before talk (LBT) on a first carrier, detecting a first signal on the first carrier when the terminal determines, through the LBT, that the first carrier is in a busy state, where the first carrier includes an unlicensed carrier, the first signal includes a first preamble signal or indication information, and the indication information indicates that the first carrier sends the first preamble signal, and sending a second preamble signal on the first carrier to attempt to access a base station when the terminal detects the first preamble signal or the indication information.

Abstract: A resource allocation method and apparatus, and a system include sending, by a network device, first information to a user equipment, where the first information is for indicating uplink resources corresponding to autonomous uplink transmission performed by the user equipment, and sending, by the network device, second information to the user equipment, where the second information is for indicating a resource that is in the uplink resources and that is used by the user equipment to perform autonomous uplink transmission.