Abstract: This application provides a communication processing method and apparatus. The method includes: receiving M groups of first parameters and N groups of second parameters that are sent by a network device, where the first parameter is a downlink parameter, the second parameter is a CRS rate matching parameter, M is a positive integer greater than or equal to 2, and N is a positive integer greater than or equal to 1, where there is an association relationship between P groups of first parameters in the M groups of first parameters and the N groups of second parameters, P is less than or equal to M, and P is a positive integer. Terminal devices may determine a punctured time-frequency resource on a PDSCH based on CRS rate matching parameters determined by the terminal devices, to obtain downlink data.

Abstract: This disclosure provides a method for determining a transport block size (TBS) of a transport block and a communications apparatus. The method includes: A communications apparatus determines a data block size corresponding to each of n code words, where the n code words correspond to a same transport block, and n is an integer greater than 1; and then, the communications apparatus determines a TBS of the transport block based on a data block size of one or more of the n code words.

Abstract: A search space blind detection method and a communication apparatus. The method includes: a terminal receives indication information that corresponds to a first search space set and that is sent by a network device, where the indication information is used to indicate one or more search space groups, one search space group includes at least two search spaces having an association relationship, and at least one search space in one search space group belongs to the first search space set; and then, the terminal determines, based on the indication information, a quantity of blind detection times corresponding to the first search space set. The quantity of blind detection times corresponding to the first search space set is determined by considering an association relationship between a plurality of search spaces.

Abstract: This application provides a multi-downlink control information based transmission technology, in which a terminal reports information about a capability of the terminal to support multi-DCI transmission, or a network device sends indication information of types or a quantity of multi-DCI based transmissions to a terminal, and the network device performs resource scheduling on the terminal on this basis, thereby helping improve resource scheduling efficiency and reduce processing complexity of the terminal. In addition, this application also provides a corresponding solution for a scenario in which a CA/DC based transmission scenario coexists with multi-DCI based transmission, thereby helping the terminal share a multi-DCI based transmission capability and a CA/DC based transmission capability, and improve a processing capability of the terminal.

Abstract: This application relates to the field of communications technologies and provides a quasi co-location indication method and an apparatus, so that a terminal learns of a quasi co-location relationship between a plurality of antenna ports of a first reference signal resource. The method includes: A terminal receives quasi-co-location indication information, where the quasi-co-location indication information is used to indicate M antenna port groups corresponding to a first reference signal resource, each of the M antenna port groups includes one or more CDM groups of the first reference signal resource, the CDM group includes a plurality of antenna ports, and any two antenna ports in a same antenna port group are in a quasi-co-location relationship. Then, the terminal determines a quasi-co-location relationship between a plurality of antenna ports of the first reference signal resource based on the quasi-co-location indication information.

Abstract: This application provides a data transmission method and a communication apparatus, to improve data transmission reliability. The method includes: receiving downlink control information (DCI); determining a plurality of pieces of quasi-co-location (QCL) information based on the DCI; and receiving downlink data based on the plurality of pieces of QCL information. The plurality of pieces of QCL information correspond to a plurality of time domain units, each time domain unit corresponds to at least one piece of QCL information, and at least two of the plurality of pieces of QCL information are different, that is, the downlink data is from at least two network devices.

Abstract: This application provides an information transmission method and apparatus. The method includes: receiving, by a terminal device, a plurality of downlink data channels, where the plurality of downlink data channels are scheduled through a plurality of downlink control channels; determining, by the terminal device based on the plurality of downlink data channels, one or more pieces of feedback information corresponding to at least two downlink data channels; and sending, by the terminal device, the one or more pieces of feedback information through a same uplink control channel.

Abstract: Embodiments of this application provide data transmission methods and apparatuses. One method includes: receiving, by a communications apparatus, indication information from a network device, wherein the indication information indicates a data distribution selected from a first data distribution and a second data distribution; performing, by the communications apparatus, data transmission with the network device based on the data distribution; wherein the data distribution indicates a distribution of modulation symbols of a code block (CB) on one or more orthogonal frequency division multiplexing (OFDM) symbols of at least one resource unit, and wherein the one or more OFDM symbols are consecutive in time-domain.

Abstract: An embodiment of this application provides a synchronization signal transmitting method. The method includes: configuring, by a base station, one or more groups of synchronization signals, where each group of synchronization signals is mapped to N PRBs and occupies multiple symbols in time domain, and N is a positive integer greater than or equal to 1; and transmitting, by the base station, the one or more groups of synchronization signals. In comparison with the prior art, PSD of a synchronization signal can be increased, and coverage of the synchronization signal can be ensured.

Abstract: This application provides a channel measurement configuration method and a communications apparatus. The method includes: receiving, by a terminal device, a measurement configuration, where the measurement configuration includes a plurality of resource settings, and the plurality of resource settings include a plurality of resource settings for channel measurement and a plurality of resource settings for interference measurement; receiving, by the terminal device, channel state information reference signals CSI-RSs on resources configured in the plurality of resource settings; and generating, by the terminal device, a CSI group based on the CSI-RSs, where the CSI group includes one or more pieces of CSI. In embodiments of this application, a plurality of resource settings for channel measurement and a plurality of resource settings for interference measurement are associated in one report setting.

Abstract: A beam reporting method and a communications apparatus is provided. The method includes that a terminal device receives first information, where the first information is used to configure at least two reference signal resource groups; and sending, by the terminal device, reporting information, where the reporting information includes related information of at least two beams, the at least two beams are used to send reference signals carried on at least two reference signal resources, and the reference signals sent by using the at least two beams can be simultaneously received by the terminal device, where the at least two reference signal resources are respectively from the at least two reference signal resource groups. In this application, related information of beams of at least two transmission points is reported through one time of beam scanning, to implement beam training in a CoMP system.

Abstract: This application discloses a scrambling code sequence generation method and apparatus, and belongs to the field of communication technologies. The method includes: determining a scrambling code sequence based on a configuration parameter of a transmission reception point TRP, where different TRPs correspond to different configuration parameters; and scrambling or descrambling data by using the scrambling code sequence. This application is used for data transmission, resolves a problem in a related technology that system performance is relatively poor because user equipment cannot better obtain, from received data, data sent by a TRP, and improves system performance.

Abstract: This application provides a data sending and receiving method. The method includes: receiving, by a terminal device, a first PDCCH and a second PDCCH, where the first PDCCH is used to schedule a first PDSCH, and the first PDSCH is used to transmit first data; determining, based on the first PDCCH and the second PDCCH, a first resource used to transmit the first data, where the first resource is a part or all of a resource of the first PDSCH; and receiving, by the terminal device, the first data from a network device on the first resource. The first resource is determined with reference to the first PDCCH and the second PDCCH, to avoid a problem that receiving performance of the first PDSCH and the second PDCCH may deteriorate when a resource of the second PDCCH overlaps the resource of the first PDSCH.

Abstract: Embodiments of this application disclose a resource configuration method and apparatus, and a system. A network device sends, to a terminal device, resource configuration information of a demodulation reference signal DMRS resource that meets a predetermined rule. The terminal device receives the resource configuration information of a DMRS, where the received resource configuration information includes two or more groups, and the DMRS is used for demodulating a physical data channel. In the two or more groups of resource configuration information, a DMRS resource configured by any group of resource configuration information does not intersect with a physical data channel resource corresponding to another group of resource configuration information.

Abstract: Embodiments of this application provide a data transmission method and apparatus. The method includes: transmitting indication information indicating a data distribution manner selected from a first data distribution manner and a second data distribution manner; performing data transmission with a terminal device according to the data distribution manner indicated by the indication information; wherein the data distribution manner indicating a distribution of modulation symbols of a code block (CB) on one or more orthogonal frequency division multiplexing (OFDM) symbols of at least one resource unit, the one or more OFDM symbols are consecutive in time-domain; and wherein modulation symbols distributed on a same OFDM symbol of the one or more OFDM symbols are interleaved in frequency-domain according to the first data distribution manner and are not interleaved in the frequency-domain according to the second data distribution manner.

Abstract: This application provides a UCI sending and receiving method and a communications apparatus. In the method, an association relationship between a PUCCH and a PUSCH is established, so that when resources of the PUSCH and the PUCCH overlap, a terminal device can determine UCI on which PUCCHs can be transmitted by multiplexing the resource of the PUSCH. A network device may receive the UCI on the PUSCH. Because the network device may know in advance which PUCCHs and PUSCHs are sent to the network device, the network device can demodulate and decode a signal on the received PUSCHs, to successfully obtain UCI. The network device can make a proper decision based on the UCI.

Abstract: A terminal device generates at least two pieces of HARQ-ACK information based on a plurality of received PDSCHs, and sends the at least two pieces of HARQ-ACK information to a network device. Each piece of HARQ-ACK information includes an ACK or a NACK fed back for one or more PDSCHs. When a piece of HARQ-ACK information includes ACKs or NACKs fed back for a plurality of PDSCHs, at least one of the following of the plurality of PDSCHs corresponding to the HARQ-ACK information is the same: port groups to which ports of DMRSs used to demodulate the PDSCHs belong, identifiers of enabled transport blocks carried in the plurality of PDSCHs, and PDCCH configurations of a plurality of PDCCHs used to schedule the plurality of PDSCHs.

Abstract: Methods, systems, and apparatus for downlink control information (DCI) detection are provided. In one aspect, a DCI detection method includes: receiving a configuration parameter that is used to configure at least one or more groups of candidate resources, each of the one or more groups of candidate resources carrying one piece of DCI, and in response to determining that one corresponding piece of DCI is blindly detected from one of the one or more groups of candidate resources, stopping the blind detection on the one of the one or more groups of candidate resources.

Abstract: A reference signal sending/receiving method, a terminal device, and a network device are provided. The terminal device determines transmit power of a reference signal of the terminal device, where the transmit power is related to a quantity of unavailable time-frequency resources in a transmission unit in which the reference signal is located; and transmits the reference signal based on the transmit power. After receiving the reference signal from the terminal device, the network device parses the reference signal based on the transmit power. The terminal device relates the transmit power of the reference signal of the terminal device to the quantity of unavailable time-frequency resources in the transmission unit in which the reference signal is located, thereby improving the transmit power of the reference signal of the terminal device in uplink MU-MIMO, and improving communication performance of the terminal device with a low signal-to-noise ratio.

Abstract: This application discloses a communications method and apparatus. The method includes: receiving, by a terminal device, PUCCH resource configuration indication information from a network device, where the PUCCH resource configuration indication information is associated with one or more of the following parameters: a downlink channel resource parameter, a demodulation reference signal port-related parameter, and a transport block parameter. A corresponding apparatus is further disclosed. According to the solution in this application, the PUCCH resource configuration indication information is associated with one or more parameters of the downlink channel resource, the demodulation reference signal port-related parameter, and the transport block parameter. When the terminal device sends uplink control information by using a PUCCH resource, a PUCCH resource conflict can be avoided, thereby ensuring transmission reliability.