Abstract: A method relating to quasi co-location functionality for wireless communication includes: a radio access network device sending signaling to a terminal device, where the signaling includes a quasi co-location type and at least one set of configuration parameters associated with the quasi co-location type, and the terminal device applying one set of configuration parameters associated with the first quasi co-location type, to learn of at least two quasi co-located antenna ports effective when at least one channel large-scale characteristic parameter associated with the first quasi co-location type is applied.

Abstract: This application describes a resource indication method and a communications device. A resource indication method may include sending, by a first device, first indication information to a second device in an nth time unit, where the first indication information indicate a first time domain resource of a first link or a second link in an (n+k0)th time unit to an (n+k1)th time unit. In the method, the first link is a link between the first device and the second device, the second link is a link between the second device and a third device, k0 is an integer greater than or equal to 0 and less than or equal to k1, and k1 is an integer.

Abstract: This application provides a reference signal transmission method and an apparatus, used in a multipoint coordination transmission scenario. In one example method, a frequency domain resource that carries a target reference signal in a frequency domain resource or a time domain resource that is associated with each QCL assumption may be separately determined, and then the target reference signal carried on the frequency domain resource that is associated with the QCL assumption is separately received by using the corresponding QCL assumption.

Abstract: Embodiments of this application provide an uplink transmission method and apparatus, a computer-readable storage medium, a computer program product, and the like, to implement intra-frequency uplink transmission by a terminal device. The method includes: determining a plurality of serving cells, where the plurality of serving cells have at least one of the following association relationships: operating frequency bands are completely the same, or the operating frequency bands are partially the same; and sending uplink signals to the plurality of serving cells, where the sending of the uplink signal meets a preset condition.

Abstract: A method includes: receiving, by a network device, k channel measurement values, k channel measurement resource identifiers, and k interference measurement resource identifiers that are sent by user equipment, where k is an integer greater than or equal to 1, each channel measurement value corresponds to one channel measurement resource identifier and one interference measurement resource identifier, and the channel measurement value is calculated based on the channel measurement resource identifier and the interference measurement resource identifier that correspond to the channel measurement value.

Abstract: A method and apparatus are provided for determining a transmission mode. A method embodiment includes obtaining, by a terminal device, configuration indication information, the configuration indication information comprising one or more of: DMRS indication information, repeated-transmission indication information, or transmission configuration indication information; and determining a transmission mode based on the configuration indication information, the transmission mode is one or more of: a space division multiplexing mode, a frequency division multiplexing mode, or a time division multiplexing mode.

Abstract: Example frequency domain resource allocation methods and apparatus are described. One example method includes determining M frequency domain resources according to a predetermined frequency domain resource allocation rule, and performing communication on one or more of the M frequency domain resources. Any two of the M frequency domain resources do not overlap. Each of the M frequency domain resources is associated with one piece of quasi-colocation (QCL) information, and any two of the M frequency domain resources are associated with different QCL information.

Abstract: Example methods and apparatus for determining a transport block size are described. One example method includes determining a transport block size (TBS) of a first transport block by a communications apparatus. The communications apparatus determines a TBS of a second transport block based on the TBS of the first transport block, where the first transport block is different from the second transport block, the TBS of the second transport block is equal to the TBS of the first transport block, and a data channel carrying the first transport block and a data channel carrying the second transport block occupy a same time domain resource.

Abstract: This disclosure provides a communication method to implement a function of a hybrid automatic repeat request (HARQ) feedback codebook in a multi-station scenario. A terminal device receives a configuration group identifier, determines a physical downlink shared channel (PDSCH) reception occasion corresponding to the configuration group identifier, and transmits feedback information of the PDSCH reception occasion based on the configuration group identifier corresponding to the PDSCH reception occasion and according to a predetermined rule of feedback sorting.

Abstract: This application provides a communication method and a communications apparatus. A terminal may perform, based on first configuration information for a maximum of a first quantity of times, blind detection at PDCCH candidate locations configured by a network device for a first CORESET group. In comparison with a solution, in the conventional technology, in which the terminal blindly detects a PDCCH for all CORESETs in a target cell for a maximum of the first quantity of times, blind detection is performed for a CORESET corresponding to each TRP for a larger quantity of times. Therefore, scheduling flexibility can be improved.

Abstract: A method includes: receiving, from a network device, an index of a precoding matrix and a quantity of layers for uplink transmission; determining a first target codebook based on the quantity of layers for uplink transmission and a quantity of physical antennas of a communications apparatus, where the first target codebook includes a plurality of first precoding matrices; and determining, based on a first target precoding matrix that corresponds to the index and that is in the plurality of first precoding matrices, a target physical antenna used by the communications apparatus to send uplink information.

Abstract: This application provides a communication method, a terminal device, and a network device. The method includes the steps of: receiving, by the terminal device, configuration information, where the configuration information is used to instruct the terminal device to jointly report channel state information (CSI) for at least two groups of channel state information-reference signal (CSI-RS) resources; receiving, by the terminal device, CSI-RSs carried on the at least two groups of CSI-RS resources; and jointly reporting, by the terminal device, CSI based on a result of measuring the CSI-RSs carried on the at least two groups of CSI-RS resources. According to embodiments of this application, transmission performance can be improved.

Abstract: Example communication methods and communications apparatus are described. One example method include: receiving downlink control information (DCI), where the DCI indicates N demodulation reference signal (DMRS) ports. The N DMRS ports correspond to each of M physical downlink shared channel (PDSCH) transmission units, at least two of the M PDSCH transmission units correspond to different transmission configuration indicator (TCI)-states, N is an integer greater than or equal to 1, and M are integers greater than or equal to 2. M PDSCHs are received based on the DCI.

Abstract: This application provides a data receiving method and apparatus and a data sending method and apparatus. In the method, a terminal device receives a PDCCH and M PDSCHs that are scheduled by using DCI in the PDCCH, where time domain resources occupied by any two of the M PDSCHs do not overlap, and the M PDSCHs are associated with at least two different pieces of beam indication information. Transmit beams and/or receive beams of the M PDSCHs are related to a time interval between adjacent PDSCHs in the M PDSCHs. Because the time interval affects receiving efficiency of the PDSCH, the time interval may be used as a consideration for determining the transmit beam and/or the receive beam of the PDSCH, to optimize the transmit beam and/or the receive beam of the PDSCH. In this way, the receiving efficiency of the PDSCH is improved.

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: Embodiments of this application provide a downlink control information transmission method, an apparatus, and a system, so that after receiving one piece of DCI, the terminal device learns whether blind detection of DCI needs to be continued. The method includes: A terminal device receives first DCI, where the first DCI includes first indication information, and the first indication information is used to indicate a first antenna port. The terminal device assumes, based on the first antenna port and antenna port configuration information, whether second DCI exists. The configuration information may include an index of a CDM group to which each of a plurality of antenna ports belongs and a maximum quantity of CDM groups that is supported by the terminal device; or the configuration information may include one or more antenna port groups, and each of the one or more antenna port groups includes one or more antenna ports.

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: In a signal transmission method, a user equipment receives a first signal from a wireless network device; and the user equipment determines spatial information of a to-be-transmitted second signal based on the first signal, and transmits the to-be-transmitted second signal by using the spatial information. An uplink transmit beam is determined by using related information of a downlink receive beam, so that the UE can efficiently determine spatial information of an uplink signal to be transmitted by the UE.

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.