Abstract: This application discloses a sounding reference signal (SRS) sending method, a resource configuration method, and a related device. It may be applied to a scenario where there is a discrepancy between uplink and downlink antenna structures of a terminal device. In the method, the terminal device sends a first SRS using a first SRS resource configured by a network device, and sends a second SRS using a second SRS resource configured by the network device, where a transmission beam of the first SRS resource is different from a transmission beam of the second SRS resource. This satisfies a requirement for measuring downlink channel state information in a scenario where there is a discrepancy between the uplink and downlink antenna structures of the terminal device. Consequently, downlink transmission weights can be calculated, thereby implementing SRS-based downlink transmission and increase cell-level or UE-level capacity.

Abstract: This application provides a signal forwarding method and a communication apparatus, and relates to the field of communication technologies, to select a suitable amplifying power to amplify a to-be-forwarded signal and forward an amplified to-be-forwarded signal. The method includes: receiving the to-be-forwarded signal; amplifying the to-be-forwarded signal based on an amplification gain of the to-be-forwarded signal, where the amplification gain of the to-be-forwarded signal is determined by measuring a measurement signal, and the measurement signal corresponds to the to-be-forwarded signal; and forwarding the amplified to-be-forwarded signal. A relay device may determine the amplification gain of the to-be-forwarded signal by measuring the measurement signal, and amplify the to-be-forwarded signal based on the amplification gain of the to-be-forwarded signal and forward the amplified to-be-forwarded signal.

Abstract: In this application, a terminal apparatus receives a first common signal, which is one of the plurality of first common signals that are sent by a network apparatus on a plurality of time-frequency resources. The plurality of time-frequency resources correspond to N time domain resources and M frequency domain resources, where N is a positive integer and M is an integer greater than 1. By allowing time-frequency resources to span multiple frequency domain resources, flexibility of sending the first common signals is enhanced for the network apparatus. In addition, because the plurality of first common signals may occupy the plurality of frequency domain resources, a quantity of time domain resources occupied by the plurality of first common signals may be reduced, leading to lower energy consumption.

Abstract: Embodiments of this application provide a signal forwarding method, a relay device, and a communication system, and relate to the field of communication technologies. The relay device determines a first time domain resource based on first resource information; and determines a first forwarding gain corresponding to the first resource information based on an association relationship between a forwarding gain and resource information, where the resource information includes one or more of the following: signal information, channel information, a time domain resource number, backhaul beam information, and access beam information; and forwards a received signal on the first time domain resource by using the first forwarding gain. In this application, the relay device forwards, based on forwarding gains corresponding to different resource information, a signal received on the first time domain resource. A coverage enhancement capability of the relay device can be improved in this manner.

Abstract: A communication method and an apparatus are provided. The method includes: receiving configuration information from a first node or a third node, where the configuration information indicates time-frequency information of a system information block 1 (SIB1) of a distributed unit (DU) of the first node; and determining, based on the obtained time-frequency information of the SIB1 of the DU of the first node, an unavailable resource of a mobile termination (MT) function of the first node, where the first node is an integrated access and backhaul (IAB) node, the second node is a parent node of the first node, and the third node is a donor node. The method facilitates avoiding a resource conflict between the MT function and the DU of the IAB node.

Abstract: This application provides a communication method and a communication apparatus. The method may include: A network device sends N synchronization signals, where N is an integer greater than 1. The network device sends M PDCCHs, and a terminal device jointly receives the M PDCCHs. The M PDCCHs are used to schedule system information corresponding to the N synchronization signals or N beams, the system information corresponding to the N synchronization signals or the N beams is system information sent in a same time window, information carried on the M PDCCHs is the same, and M is an integer greater than or equal to 1. According to this application, the information carried on the M PDCCHs is the same, and therefore, the terminal device may jointly receive the M PDCCHs. This can enhance transmission performance.

Abstract: This application provides a communication method. The method may be applied to a device in which an encoder is disposed, or an encoder. The method includes: obtaining N pieces of channel information, where the N pieces of channel information are determined based on a reference signal in K antenna port groups, N is a positive integer, and K is a positive integer less than or equal to N; compressing the N pieces of channel information by using a first encoder, to obtain a first sequence, where the first sequence is a joint feedback quantity of the N pieces of channel information; and sending the first sequence. In the method, channel information of analog beams is jointly compressed by using an encoder and fed back, for example, the N pieces of channel information are compressed into the first sequence, thereby reducing overheads of feeding back the channel information.

Abstract: Embodiments of the disclosure relate to a data transmission method and related apparatus. The method includes the followings operations. Receiving or sending a first signal based on a first transmission mode, where the first transmission mode corresponds to at least one of a first port capability or a first bandwidth capability. Performing transmission mode switching from the first transmission mode to a second transmission mode, where the second transmission mode corresponds to at least one of a second port capability or a second bandwidth capability. Receiving or sending a second signal based on the second transmission mode. In this way, a terminal device may dynamically perform transmission mode switching to save energy when a service volume is small and implement high-capacity transmission when the service volume is large.

Abstract: A communication method, an apparatus, a storage medium, and a computer program product are provided, and relate to the field of wireless communication technologies. In this disclosure, a terminal apparatus receives first information, where the first information includes information indicating indexes of a plurality of resources. The terminal apparatus performs transmission of a first signal, where a spatial relation of the first signal is associated with a spatial relation of the plurality of resources. Because the first information received by the terminal apparatus indicates the plurality of resources, the terminal apparatus may perform transmission of the first signal based on an indication of second information by using the spatial relation of the plurality of resources. According to the solution provided in this disclosure, a spatial relation configuration problem in the multi-beam transmission scenario can be resolved.

Abstract: A communication method and apparatus relate to the field of communication technologies, to improve flexibility and efficiency of scheduling an antenna port combination for uplink transmission. The method includes: A network device sends a sounding reference signal (SRS) configuration message to a terminal, where the SRS configuration message includes N SRS resources, the N SRS resources include a first SRS resource and a second SRS resource, each of the first SRS resource and the second SRS resource includes one or more SRS ports; and the network device receives an SRS corresponding to an mth SRS port of the first SRS resource and an SRS corresponding to an nth SRS port of the second SRS resource that are sent by the terminal through a same antenna port, where N, m, and n are positive integers.

Abstract: This application provides a power control parameter determining method and an apparatus, to simplify a beam indication process and a power control parameter indication process, and reduce signaling overheads. The method and apparatus may be applied to a 5G communication system and a future communication system. The method includes: A terminal device receives, from a network device, first signaling that includes a first value of a DCI field, where the first value indicates a first TCI state in at least one activated TCI state; and obtains, based on a mapping relationship, a power control parameter set corresponding to the first TCI state. The mapping relationship includes a mapping relationship between an identifier of at least one mapping parameter subset and at least one value of the DCI field, or a mapping relationship between an identifier of at least one mapping parameter subset and the at least one activated TCI state.

Abstract: A resource configuration method includes obtaining, by a relay node, first information, wherein the first information comprises an identifier of at least one beam useable for sending a first signal. The method further includes sending second information to a parent node based on the first information, wherein the second information comprises a correspondence between the at least one beam and a desired power spectrum density (PSD). The method further includes receiving third information from the parent node, wherein the third information is useable to indicate to the relay node to determine a transmit power based on the third information.

Abstract: This application provides a precoding matrix transmission method and a communication apparatus. The method includes: A terminal device receives first configuration information, where the first configuration information is used to configure downlink transmission resources corresponding to K port groups, each of the K port groups includes a plurality of antenna ports, and K is a positive integer; and the terminal device sends precoding matrix indicator (PMI) information, where the PMI information indicates v groups of parameters, and any one of the v groups of parameters includes at least one first parameter, where the at least one first parameter corresponds to at least one of P groups of channel information, the P groups of channel information are determined based on a downlink reference signal received on the downlink transmission resources corresponding to the K port groups, v is a positive integer, and P is an integer greater than 1.

Abstract: A communication method and apparatus are provided. A terminal obtains first information and second information, the first information is used to determine a length of a first-type symbol component, the second information is used to determine at least one of a length of a second-type symbol component and a length of a third-type symbol component, and the length of the first-type symbol component is greater than the length of the third-type symbol component. The terminal determines a plurality of signal blocks based on the first information and the second information, and processes each of the plurality of signal blocks to obtain an OFDM symbol corresponding to the signal block and sends the OFDM symbol.

Abstract: A communication method and a related device, to reduce overheads in a channel measurement process, improving resource utilization and reducing power consumption of a terminal device. In the method, the terminal device receives a first reference signal, where the first reference signal corresponds to a first port set and a second port set, and each port set includes one or more ports. The terminal device sends first channel information and second channel information, where the first channel information is determined based on the first port set corresponding to the first reference signal and the second port set corresponding to the first reference signal, and the second channel information is determined based on the second port set corresponding to the first reference signal.

Abstract: A hydraulic linkage plunger pushing mechanism for a plunger diaphragm pump body with a low-pressure liquid chamber and a plunger, includes: a bearing component; and a crankshaft disposed in the low-pressure liquid chamber in the plunger diaphragm pump body through the bearing component, the crankshaft comprising an eccentric part, and the eccentric part of the crankshaft sleeved with a bearing; wherein in case where the crankshaft rotates along a crankshaft axis thereof, the bearing disposed at the eccentric part of the crankshaft pushes the plunger to compress.

Abstract: This disclosure describes a communication processing method. A method according to this disclosure includes: A terminal device determines first weight vectors respectively corresponding to M antenna element set groups. At least one antenna element set group in the M antenna element set groups includes at least two antenna element sets, and a first weight vector corresponding to each of the at least one antenna element set group includes at least two elements. Each element is corresponding to one antenna element set in the antenna element set group, and each element is used to adjust a phase of an antenna element included in the antenna element set corresponding to the element. Different elements correspond to different antenna element sets. M is an integer greater than or equal to 1.

Abstract: This application discloses a channel measurement method and apparatus. A network device sends downlink signaling, to indicate or activate a beam. A terminal device determines the beam indicated or activated by using the downlink signaling, determines, based on an association relationship between a beam and a channel measurement configuration, a channel measurement configuration associated with the beam, performs channel measurement based on the channel measurement configuration, to obtain a channel measurement result, and reports the channel measurement result to the network device. According to the channel measurement solution in this application, when channel quality of a new beam needs to be measured, the network device does not need dedicated signaling to indicate a channel measurement configuration associated with the new beam. When the beam is indicated or activated, the terminal device is triggered to perform channel measurement, to implement low-latency and low-overhead channel measurement.

Abstract: A transmission timing determining method and apparatus are provided, to determine a transmission timing of an IAB node. The method is applied to a first node, and a second node may be an upper-level node or a donor node of the first node. The method includes: The first node receives control information from the second node, where the control information includes scheduling information of uplink transmission, and the control information includes first scrambling information. The first node determines a first timing type associated with the first scrambling information. The first node determines a transmission timing of the uplink transmission based on the first timing type.

Abstract: This application provides a wireless communication method and apparatus. The wireless communication method includes: receiving indication information of a first pattern, where the first pattern is one of a plurality of patterns, each of the plurality of patterns indicates distribution of at least one resource in frequency domain, and the at least one resource includes at least one of a first resource, a second resource, and a third resource, where the first resource is a definitely available resource, the second resource is an unavailable resource, and availability of the third resource depends on a further indication of an upper-level node; and communicating with a second network device and/or a terminal device based on the first pattern.