Abstract: The method includes: determining, by user equipment, first uplink control information and second uplink control information, where a length of a time domain resource corresponding to the first uplink control information is less than a length of a time domain resource corresponding to the second uplink control information; and when the time domain resource corresponding to the first uplink control information overlaps with the time domain resource corresponding to the second uplink control information, transmitting, by the user equipment, third uplink control information on the overlapping time domain resource, where the third uplink control information includes at least one of fourth uplink control information and fifth uplink control information, the fourth uplink control information includes some or all of the first uplink control information, and the fifth uplink control information includes some or all of the second uplink control information.

Abstract: This application provides a pilot signal transmission method, a base station, and user equipment. A dedicated demodulation pilot signal and a common demodulation pilot signal in a TTI may be configured on different resource blocks of the TTI. The method in embodiments of the present invention includes: determining, by a base station, a resource location that is in a TTI and that is used to send a pilot signal, where the pilot signal includes a common demodulation pilot signal and a dedicated demodulation pilot signal, and the dedicated demodulation pilot signal and the common demodulation pilot signal are located on different resource blocks of the TTI; and sending, by the base station, the pilot signal at the resource location used to send the pilot signal.

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: A carrier indication method, user equipment, and a base station are disclosed. The method includes: receiving, by user equipment, first information sent by a base station; if the user equipment is capable of transmitting uplink data and downlink data on a carrier, determining, by the user equipment according to the first information, a carrier used for transmitting first-type information; and transmitting, by the user equipment, the first-type information on the determined carrier, where the first-type information includes at least one of the following: uplink data, downlink data, and scheduling information. In this application, user equipment determines, according to first information sent by a base station, a carrier used for transmitting information, and therefore, can normally transmit information.

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: 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: 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: The present disclosure describes methods, user equipment, and base stations for sending feedback information. One example method includes: sending scheduling information on a downlink control channel to user equipment, wherein the downlink control channel is in a downlink subframe which belongs to a preconfigured downlink subframe set, and the scheduling information is used for scheduling downlink data; determining an uplink subframe for receiving feedback information corresponding to the downlink data, wherein the preconfigured downlink subframe set is a set of downlink subframes that are associated with the uplink subframe and that are of all carriers configured for the user equipment by the base station; sending PUCCH resource indication information to the user equipment for indicating a PUCCH resource.

Abstract: Embodiments of the present invention provide an information sending method and apparatus and an information receiving method and apparatus. The sending method includes: determining a length of a cyclic redundancy check CRC code based on a length of first information, where the first information is control information, and if the length of the first information is less than or equal to a first threshold, and greater than a second threshold, it is determined that the length of the CRC code is a first length; generating the CRC code based on a generator polynomial corresponding to the length of the CRC code and the first information; generating second information; and sending the second information. The present invention improves reliability of information transmission.

Abstract: The present disclosure relates to the field of wireless communications technologies, and discloses a random access method and apparatus, a base station, and UE, to resolve a problem of long time required by random access. According to embodiments of the present disclosure, a base station receives a random access preamble sent by user equipment UE, where the random access preamble is used to indicate that the UE has a first transmission capability; the base station sends DCI to the UE by using a PDCCH; the base station sends an RAR for the random access preamble to the UE by using a DL-SCH transport block indicated by the DCI; and the base station receives a UL-SCH transport block sent by the UE according to uplink scheduling information carried by the RAR. Solutions provided by the embodiments of the present disclosure are applicable to a process in which UE accesses a network.

Abstract: In a data receiving method, a terminal receives first indication information, where the first indication information indicates a target frequency domain position. The terminal determines a first time-frequency resource based on a time domain position of a control resource set and the target frequency domain position, where a frequency domain position of the first time-frequency resource is the same as the target frequency domain position. The terminal receives data on a target time-frequency resource, where the target time-frequency resource includes a second time-frequency resource and a part of resources in the first time-frequency resource; or the target time-frequency resource includes a second time-frequency resource but does not include the first time-frequency resource, where N is a positive integer.

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: This application discloses a channel quality feedback method and apparatus, and the channel quality feedback method includes the following steps: determining, by a network device, a channel quality indicator set of a terminal device, where the channel quality indicator set includes at least one channel quality indicator value, and the channel quality indicator value is used to indicate channel quality; and sending, by the network device, the channel quality indicator set to the terminal device.

Abstract: This application provides an information transmission method and apparatus. A terminal receives downlink control information (DCI), wherein a format of the DCI corresponds to a time domain resource set, the time domain resource set comprises first time domain resource. The terminal determines the first time domain resource from the time domain resource set based on the format of the DCI and second information, wherein the second information is carried in the DCI, and the second information indicates the index of the first time domain resource in the time domain resource set. And the terminal performs information transmission on the first time domain resource and through a physical channel.

Abstract: This application provides a reference signal sending method.

Abstract: The present invention discloses a downlink control information sending method and device, and a downlink control information receiving method and device. The sending method includes: sending, by a base station device, downlink control information DCI on a physical downlink control channel PDCCH of a downlink subframe, where the DCI is used to instruct user equipment UE to receive physical downlink shared channel PDSCH information in an uplink subframe; and sending the PDSCH information in the uplink subframe. In this way, the base station can effectively schedule an uplink subframe, and a purpose of transmitting a downlink service by using an uplink subframe is achieved, which not only improves utilization of a wireless spectrum resource corresponding to the uplink subframe, but also effectively diverts load pressure of a wireless spectrum resource corresponding to a downlink subframe. Therefore, overall utilization of wireless spectrum resources of a system is improved.

Abstract: A control information sending or receiving method and an apparatus are provided. The sending method includes: determining, by a terminal device from M uplink control channels, a first uplink control channel corresponding to first information; and sending, by the terminal device, uplink control information to a network device over the first uplink control channel in a first time unit.

Abstract: A method of using multiple diversity domains for data repetition is provided. A diversity mode indicator is set to one diversity mode indicator value of a plurality of diversity mode indicator values. Each diversity indicator value is associated with a respective combination of one or more diversity domains for data repetition. Following that, transmitting or receiving a plurality of repetitions is performed based on the one diversity mode indicator value. For at least one of the diversity mode indicator values, the respective combination of one or more diversity domains for repetition comprises space.

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: The present disclosure relates to a terminal device, in which a processing module selects one or more normal carriers or special carriers from a first carrier set for an uplink subframe, where the first carrier set includes all carriers in carrier aggregation that are used by the terminal device to send a first uplink subframe; and a sending module cancels sending of the uplink subframe on one or more carriers, where the special carrier is a carrier on which the terminal device sends neither uplink data nor uplink control information in uplink, and the normal carrier is a carrier that is used by the terminal device to send uplink data and/or uplink control information. An uplink subframe on some carriers is rejected, thereby resolving a problem that information such as a downlink channel characteristic of a carrier cannot be obtained when no uplink reference signal is sent on the carrier.