Abstract: This application provides a downlink control information transmission method and an apparatus. The method includes: A terminal determines a quantity of information bits of first downlink control information DCI based on a 1st corresponding non-dormant bandwidth part BWP of a secondary cell SCell within active time or a 1st corresponding non-dormant BWP of a secondary cell outside active time, and monitors the first DCI on a PDCCH candidate of a primary cell PCell based on the quantity of information bits of the first DCI. The first DCI is used to schedule data transmission of the PCell and/or data transmission of the SCell. The solutions disclosed in this application help accurately determine a size of DCI, and improve information transmission performance.

Abstract: Embodiments of this application provide a cell scheduling method, wherein a terminal device receives a downlink control information format from a network device; and the terminal device determines, whether at least one cell in the plurality of cells are scheduled based on a combination of the first indicator field and the fourth indicator field in the downlink control information format.

Abstract: This application provides a HARQ-ACK codebook feedback method and a communication apparatus. The method includes: A network device sends one piece of DCI to a terminal, where the DCI is used to schedule Ni data channels in a plurality of cells, and the DCI includes a counter-downlink assignment index C-DAI. The terminal determines, based on the C-DAI, an arrangement order of HARQ feedback information of the N1 data channels in a HARQ-ACK codebook, and feeds back the HARQ-ACK codebook to the network device.

Abstract: Embodiments of this application provide a method for processing information bits in a wireless communication network. A communication device receives a radio resource control (RRC) signaling, wherein the RRC signaling comprises time window information and time unit format information, wherein the time window information comprises a hybrid automatic repeat request (HARQ) time sequence K1 set, wherein K1 is a time relationship between a time unit of a physical downlink shared channel (PDSCH) and a time unit of a physical uplink control channel (PUCCH), or wherein the K1 is a time relationship between a time unit of a (PDSCH) and a time unit of a physical uplink shared channel (PUSCH). The device determines HARQ feedback information based on the time window information and the time unit format information and sends the HARQ feedback information.

Abstract: This application provides a channel state information (CSI) feedback method and apparatus. In the method, configuration information indicates an association relationship between a plurality of frequency bands and a plurality of TRPs. The plurality of TRPs are associated with a first frequency band, and at least one TRP in the plurality of TRPs is further associated with a second frequency band. In this way, a terminal can feed back, in a targeted manner, CSI corresponding to the plurality of TRPs associated with each frequency band by using coherent joint transmission, for example, CSI corresponding to the plurality of TRPs on the first frequency band, and CSI corresponding to the at least one TRP on the second frequency band.

Abstract: A communication method includes receiving first information from a network device. The first information is used to configure M communication parameter groups corresponding to N candidate carriers, N is an integer greater than or equal to 1, and M is greater than or equal to N. The communication method also includes receiving second information from the network device. The second information indicates at least one communication parameter group in the M communication parameter groups. The communication method further includes performing communication on at least one carrier based on the at least one communication parameter group, wherein the N candidate carriers comprise the at least one carrier.

Abstract: A method includes sending, by a network device, first configuration information, and sending, by the network device, second configuration information. The first configuration information is useable to map a first reference signal to a first resource element set in a first time element. The first resource element set includes at least a first resource element. The second configuration information is useable to map a second reference signal to a second resource element set in a second time element. The second resource element set includes at least a second resource element. A frequency domain resource occupied by the first resource element overlaps a frequency domain resource occupied by the second resource element in response to the first time element and the second time element overlapping each other in a time domain.

Abstract: A communication method and apparatus includes a terminal that receives first control information from a network device. The first control information includes a first field. The first field indicates single-carrier scheduling or the multi-carrier scheduling. When the first field indicates the single-carrier scheduling, the terminal communicates with the network device on one scheduled carrier. Alternatively, when the first field indicates the multi-carrier scheduling, the terminal communicates with the network device on a plurality of scheduled carriers. According to the method and the apparatus in this application, the first field in the first control information may explicitly or implicitly indicate the single-carrier scheduling or the multi-carrier scheduling, and the network device does not need to additionally send a notification message, thereby reducing air interface overheads.

Abstract: This application provides a resource scheduling method and a communication apparatus. The method includes: A network device sends a plurality of pieces of configuration information to a terminal device, where the plurality of pieces of configuration information include first configuration information and second configuration information, the first configuration information is for configuring scheduling information of a multi-carrier co-scheduling manner to be sent in a first cell, and the second configuration information is for configuring a resource of a second cell to be scheduled in the multi-carrier co-scheduling manner; and the network device sends first scheduling information to the terminal device in the first cell, where the first scheduling information is for scheduling resources of a plurality of cells, and the plurality of cells include the second cell or the first cell and the second cell. In this way, resource utilization and resource scheduling efficiency are improved.

Abstract: A communication method and apparatus are provided. The method includes: A base station sends, to a terminal, first DCI for scheduling a plurality of CCs, where the first DCI includes at least a first field, and the first field is shared by the plurality of CCs. According to the method and the apparatus in this application, information does not need to be independently configured for each CC in the first field in the first DCI, so that payload overheads of the first DCI are reduced.

Abstract: Embodiments of this application provide a PDCCH monitoring method. The method includes: A terminal device monitors a PDCCH on a first PDCCH candidate as indicated by network when at least one RE in the first PDCCH candidate overlaps with at least one RE in the first time-frequency resource as indicated by the network.

Abstract: Embodiments of this application provide a method for processing information bits in a wireless communication network. A communication device receives a radio resource control (RRC) signaling, wherein the RRC signaling comprises time window information and time unit format information, wherein the time window information comprises a hybrid automatic repeat request (HARQ) time sequence K1 set, wherein K1 is a time relationship between a time unit of a physical downlink shared channel (PDSCH) and a time unit of a physical uplink control channel (PUCCH), or wherein the K1 is a time relationship between a time unit of a (PDSCH) and a time unit of a physical uplink shared channel (PUSCH). The device determines HARQ feedback information based on the time window information and the time unit format information and sends the HARQ feedback information.

Abstract: A communication method and an apparatus are provided. The method includes: A communication apparatus may send uplink capability information to a network device, where the uplink capability information includes at least one of the following: a maximum quantity of uplink carriers configured for the communication apparatus, a maximum quantity of uplink carriers supported by the communication apparatus, and a maximum quantity of channels supported by the communication apparatus. Further, the communication apparatus receives first information from the network device, where the first information indicates an uplink carrier used for uplink transmission, and performs uplink transmission with the network device on the uplink carrier. The communication apparatus may be a terminal device.

Abstract: A method includes receiving, by a terminal device, timing information; determining, by the terminal device, a first uplink sending moment based on the timing information and a synchronization signal; and sending, by the terminal device, an uplink signal to an access network device at the first uplink sending moment, wherein both the timing information and the synchronization signal are from a network device, and the access network device does not support downlink transmission.

Abstract: A radio frequency link switching method includes: A terminal device receives first information from a network device, where the first information indicates the terminal device to switch at least one transmit link from a first carrier group to a second carrier group. The terminal device determines a third carrier group based on a first parameter of the first carrier group and a first parameter of the second carrier group, where the third carrier group is the first carrier group or the second carrier group, and a switching time period of the transmit link is located in the third carrier group.

Abstract: A communication method and apparatus are provided. The method includes: A terminal receives first signaling from a network device. The first signaling indicates at least one type of configuration. The terminal receives second signaling from the network device. The second signaling indicates a first configuration included in the at least one type of configuration. The terminal communicates with the network device based on the first configuration. The at least one type of configuration includes at least one of the following: a quantity of PDSCHs, a quantity of PUSCHs, a quantity of CORESET pools for DCI blind detection, a quantity of transport layers for space division multiplexing, a quantity of tracked TCI states, or a quantity of HARQ processes. 10 According to the method and the apparatus in this application, flexible and efficient switching between resources in a baseband processing capability of the terminal can be implemented.

Abstract: Embodiments of this application provide a communication method, apparatus, and system. The method includes: A network device performs time calibration on a first time unit of a first frequency band and a second time unit of a second frequency band; the network device sends first information to a terminal device based on the first frequency band and the first time unit, where the first information includes synchronization information; and the network device sends second information to the terminal device based on the second frequency band and the second time unit, where the second information includes information other than the synchronization information. For an obtained time window of the second information, refer to a time window of the first information.

Abstract: This application discloses a communication method that includes: receiving first control information of a first bandwidth part (BWP) and second control information of a second BWP, and receiving a first data channel and a second data channel based on the first control information. The first BWP includes a first frequency domain resource and a second frequency domain resource. The second BWP includes a third frequency domain resource, and the third frequency domain resource and the second frequency domain resource overlap. The first data channel is located on the first frequency domain resource, and the second data channel is located on the third frequency domain resource. The foregoing method provides a manner of transmitting data on the first and second BWPs that partially overlap.

Abstract: Embodiments of this application provide a communication method, including: A terminal device determines first indication information, and sends the first indication information to an access network device, where the first indication information indicates one or two solutions, supported by the terminal device, in a first solution and a second solution, and both the first solution and the second solution are used to: when a first cell and a second cell jointly schedule the first cell, determine at least one of a maximum value of a number of PDCCH candidates that need to be monitored by the terminal device and a maximum value of a number of non-overlapping CCEs in the PDCCH candidates that need to be monitored.

Abstract: This application relates to the field of communications technologies, and discloses a data scheduling method and an apparatus. The data scheduling method includes: sending, by a network device at a first time domain position, scheduling information to a terminal device, and sending or receiving, at a second time domain position, data scheduled by using the scheduling information, where the first time domain position and the second time domain position are located on different carriers, or the first time domain position and the second time domain position are located on different BWPs. The second time domain position may be determined based on an end position of the first time domain position and/or a capability of the terminal device.