Abstract: By defining more SCS options and Discrete Fourier Transform (“DFT”) options for transmissions in future networks, there arises cause to select from among the options, with aspects of the channel as guidance for the selection. In addition, new CP designs may be defined for use with the new SCS options and the new DFT options along with methods of selecting a CP design appropriate to a particular situation. The new CP designs may be shown to have smaller CP overhead when compared to the known CP designs used for known combinations of an SCS option with an FFT size option. New sampling frequency design options and new system basic timing options may also be defined, along with methods of making appropriate selections from among these options. Control signaling using higher layers may be used to distribute configuration options that include multiple SCS options, CP duration options, sampling frequency options and DFT size options per sub-band.

Abstract: The embodiments of this application provide a method and a device for sending and receiving control information, to flexibly adjust reliability of uplink transmission. A network device sends indication information of an uplink control channel to a terminal device. The indication information of the uplink control channel indicates at least one parameter of the following transmission parameters: a time domain length, a frequency domain length, a time domain repeat count, a frequency domain repeat count, or a transmit diversity manner. The network device receives uplink control information from the terminal device according to the indication information by using the uplink control channel.

Abstract: In an uplink information receiving method, a first terminal device receives first indication information sent by a network device, where the first indication information indicates a first uplink resource; and the first terminal device sends uplink information to the network device on a fourth uplink resource, where the fourth uplink resource is a resource other than a second uplink resource in the first uplink resource, the second uplink resource is a subset of a third uplink resource, and the third uplink resource is an intersection between a fifth uplink resource configured for a second terminal device and the first uplink resource.

Abstract: A communication method and a communications device are provided. The communication method includes: determining a modulation and coding scheme index; determining first information based on received DCI; determining, based on the first information, modulation and coding scheme information corresponding to the modulation and coding scheme index, wherein the first information comprises a search space in which the DCI is located, and the search space in which the DCI is located is a common search space or a user-specific search space.

Abstract: This application provides a communication method and apparatus. A terminal receives first indication information from a network device, wherein the first indication information indicates a first set of related information of feedback time, each piece of related information of feedback time in the first set of related information of feedback time indicates a quantity of time units comprised in a feedback time of a first data block. The terminal receives second indication information from the network device, wherein the second indication information indicates first related information of feedback time of the first data block, and the first related information of feedback time belongs to the first set of related information of feedback time. The terminal sends the response message for the first data block to the network device based on the second indication information and the first indication information.

Abstract: A communication method includes: obtains a first DAI in a first downlink control channel associated with transmission of a first transport block, wherein the first DAI indicates a first scheduling assignment for the first transport block; obtains a second DAI in a second downlink control channel associated with transmission of a second transport block, wherein the second DAI indicates a second scheduling assignment for the second transport block; determines that at least one value of the second DAI is an assigned value identical to a value of the first DAI.

Abstract: A system and method for multiplexing traffic. A wireless device such as a user equipment (UE) may receive a first signal over first resources assigned to carry a first downlink transmission from a base station, and receive a first downlink control indication (DCI) message from the base station. The first DCI message may include a pre-emption region (PR) indication and a PR bitmap, and the PR indication may indicate a location of a time-frequency region. The PR bitmap may include bits associated with different portions of the time-frequency region, and each of the bits in the PR bitmap may indicate whether a preemptive downlink transmission is present in the corresponding portion of the time-frequency region.

Abstract: This application provides a transmission resource allocation method and apparatus, and a data sending method and apparatus. The method includes: determining, by a network device, at least one basic resource element, where each of the at least one basic resource element corresponds to at least one pilot, a first basic resource element in the at least one basic resource element corresponds to at least two pilots, and the at least two pilots are different; and indicating, by the network device to a terminal device, at least one pilot corresponding to one or more of the at least one basic resource element.

Abstract: A sending method includes: determining, by a terminal device, a target uplink control channel in a first uplink control channel and a second uplink control channel, where the first uplink control channel corresponds to first uplink control information and the second uplink control channel corresponds to second uplink control information; and sending, by the terminal device, target uplink control information on the target uplink control channel, where the target uplink control information includes the first uplink control information and the second uplink control information.

Abstract: Aspects of the present application use diversity of more than one TCI state, QCL assumption, precoder and/or SRI on the network side to enable multiple transmission beams in a transmission period having multiple transmission opportunities to provide robust beam transmission from the network side. An example of transmission opportunities in a transmission period may be OFDM symbols in a slot. Aspects of the present application use diversity of more than one TCI state, QCL assumption, precoder and/or SRI at the UE to enable the UE to transmit multiple transmission beams in a configured transmission period having multiple transmission opportunities to provide robust transmission from the UEs. When using multiple transmission beams, in the event that data transmitted on one beam cannot be decoded (e.g. due to beam blockage, poor radio conditions, etc.), data transmitted on other beams can still be decoded successfully.

Abstract: Embodiments in this application relate to method and apparatus for transmitting downlink control information. A network device determines downlink control information, where the downlink control information includes at least one information field. The network device sends the downlink control information to a terminal device in a common search space or a common control resource set, or sends the downlink control information to the terminal device in a specific search space or a specific control resource set. The terminal device receives the downlink control information, and determines information indicated by the at least one information field of the downlink control information. According to the solutions provided in the embodiments of this application, requirements of various communication scenarios can be better satisfied.

Abstract: This application provides a method and device for transmitting data. This is advantageous to improving data transmission efficiency. The method includes: sending, by a first device, indication information to a second device, where the indication information indicates a first sending manner for a first transport block, and the first sending manner is one of at least two sending manners; and sending, by the first device, the first transport block based on the first sending manner, or receiving, by the first device, the first transport block based on the first sending manner.

Abstract: A communication method, including receiving, by a terminal device, first indication information sent by the network device, where the first indication information indicates a first time-frequency resource used to receive a reference signal of the terminal device, receiving, by the terminal device, second indication information sent by the network device, where the second indication information indicates a second time-frequency resource, and determining, by the terminal device according to the second indication information, whether a third time-frequency resource is included in the first time-frequency resource, where the third time-frequency resource is at least one of a time-frequency resource included in both of the first time-frequency resource and the second time-frequency resource, a time-frequency resource adjacent to the second time-frequency resource, a time-frequency resource whose interval from the second time-frequency resource is less than a preset first interval, or a time-frequency resource rela

Abstract: The present disclosure relates to handling latency-sensitive traffic, in Ultra-Reliable Low Latency Communication (URLLC) for example, during measurement gaps. Latency-sensitive traffic is detected at a user equipment (UE), and transmission or reception associated with the latency-sensitive traffic is performed at the UE during a time period in which a measurement gap has been configured for the UE to perform measurement of received signal strength. The transmission or reception may be performed instead of or in addition to the measurement. Other embodiments that involve shortening measuring times and shortening or avoiding switching times associated with communication resource switching, for example, are also disclosed.

Abstract: A method may include: dividing, by a sending device into k code blocks CBs, a TB into which a cyclic redundancy check bit is loaded, then separately performing channel coding on the k CBs, to obtain a bit sequence Sj, where j=1, 2, . . . , and k, and a set S={S1, S2, . . . , Sk}. and mapping, by the sending device, some or all bit sequences in all elements in S to transmission resources in N basic transmission time units, where some or all bit sequences in the Sj are mapped to transmission resources in Mj basic transmission time units, and a last bit in the Sj mapped to an mth basic transmission time unit in the Mj basic transmission time units and a first bit in the Sj mapped to an (m+1)th basic transmission time unit are contiguous in the Sj.

Abstract: Embodiments of this application provide a communication method and apparatus. The method includes: If a terminal side device determines that first downlink control information (DCI) meets a first condition, the terminal side device uses a quantity of PDCCH candidates that are located in a first time unit and that are in a search space set corresponding to the first DCI as a first quantity of times of monitoring. In the first time unit, the terminal side device monitors, in the search space set corresponding to the first DCI based on the first quantity of times of monitoring, a PDCCH carrying the first DCI.

Abstract: This application provides a reference signal sending method.

Abstract: Embodiments of the present disclosure provide an apparatus configured to receive one or more pieces of first downlink control information from a base station, where each of the one or more pieces of first downlink control information carries a downlink assignment index, and at least one of the one or more pieces of first downlink control information carries a total downlink assignment index, generate a hybrid automatic repeat request response message according to the total downlink assignment index and downlink assignment indexes of the one or more pieces of first downlink control information, and send the hybrid automatic repeat request response message to the base station.

Abstract: A method for scheduling a downlink transmission is provided. The method includes receiving, by a user equipment (UE), downlink control information (DCI) from a base station, the DCI indicating a location of a transmission duration within a subframe, the location of the transmission duration including a start position of the transmission duration and a length of the transmission duration, the length of the transmission duration being 2, 4, or 7 symbols. The method further includes receiving downlink data from the base station, the downlink data carried by the transmission duration at the location indicated by the DCI.

Abstract: Embodiments of this application provide slot format configuration method and device. According to the method, a network device determines a slot format index for performing uplink-downlink transmission with a terminal device. The slot format index corresponds to a row in a slot format information table, and each row in the slot format information table includes positions of uplink symbols, positions of downlink symbols, and positions of unknown symbols in a slot. The network device sends the slot format index to the terminal device. The terminal device determines a slot format for the uplink-downlink transmission from the slot format information table based on the slot format index. The uplink-downlink slot configuration method provided in the embodiments of this application may satisfy specific requirements of low-latency and high-reliability communication scenarios.