Abstract: Embodiments of this application relate to a method for controlling an antenna polarization direction and an antenna system. A first feed array and a second feed array whose polarization directions are orthogonal are disposed in the antenna system. A polarization direction of a beam of a third planar array may be adjusted by adjusting parameters such as beam widths/a beam width of the first feed array and/or the second feed array, phase centers/a phase center of the first feed array and/or the second feed array, and a phase difference between the first feed array and the second feed array.

Abstract: This application provides a beam switching method and apparatus. The beam switching method includes: A satellite device receives first location information of a terminal device. The satellite device sends first indication information, where the first indication information indicates one or more of K switching time periods. The K switching time periods are determined by the satellite device based on first information. The first information includes the first location information of the terminal device, location information of the satellite device, a velocity vector of the satellite device, and beam information of the satellite device. The K switching time periods are time periods in which the terminal device performs K times of beam switching.

Abstract: Embodiments of this application provide a wireless communication method and apparatus. In one example method, a first communication apparatus obtains first beam configuration information, determines a first beam hopping pattern based on the first beam configuration information, and communicates with a second communication apparatus based on the first beam hopping pattern.

Abstract: A random access method includes sending a random access preamble to a base station on a first time domain resource, obtaining an index value of the first time domain resource, obtaining an index difference between the first time domain resource and a second time domain resource, obtaining an index value of the second time domain resource by adding the index value of the first time domain resource and the index difference, obtaining a random access radio network temporary identifier (RA-RNTI) based on the index value of the second time domain resource, receiving a random access response (RAR) from the base station, and descrambling a cyclic redundancy check (CRC) code of the RAR using the RA-RNTI.

Abstract: This application provides a signal transmission method, a communication system, and a communication apparatus. A second communication apparatus sends a first message. Correspondingly, a first communication apparatus receives the first message. The first message includes first resource indication information. When the first resource indication information is a first value, the first resource indication information indicates a third communication apparatus to transmit data on a first subcarrier group of the first communication apparatus, and the first subcarrier group does not include a data subcarrier of the first communication apparatus. The second communication apparatus sends a second message. Correspondingly, the third communication apparatus receives the second message. The second message includes second resource indication information.

Abstract: This application discloses a communication method. In one example method, a network device sends a first message, where the first message includes target adjustment information. The network device sends a second message, where the second message includes a timing advance (TA), the target adjustment information is used to determine a delay time, and the TA is used to determine a first uplink sending time. The network device receives an uplink transmission sent at an uplink sending time, where the uplink sending time is the first uplink sending time delayed by the delay time.

Abstract: A handover method obtains first configuration information of a transmission resource for a first-type downlink reference signal and obtains configuration information of a transmission resource for a second-type downlink reference signal. The transmission resource for the first-type downlink reference signal is different from the transmission resource for the second-type downlink reference signal, the first-type downlink reference signal is usable for cell handover, and the second-type downlink reference signal is usable for random access. The method detects the first-type downlink reference signal based on the first configuration information, to obtain a first detection result and determines, based on the first detection result, whether to perform cell handover.

Abstract: Embodiments of this application disclose cell handover measurement indication methods, a network device, and a terminal, to improve reliability and real-time performance of cell handover. A cell handover measurement indication method includes: A network device calculates a measurement moment of cell handover based on a measurement event and sends a measurement indication. The measurement event is a location relationship between a terminal and the network device, and the measurement indication is used to indicate the terminal to perform cell handover measurement. The measurement indication sent by the network device may be used to notify the measurement moment of cell handover to the terminal.

Abstract: A power module includes a heat dissipation panel, a substrate, and a chip that are sequentially stacked. A first region and a second region are disposed on a surface of the heat dissipation panel, the second region is disposed at least at a corner of the first region, and surface roughness of the second region is greater than surface roughness of the first region. A projection of the substrate in a thickness direction of the heat dissipation panel overlaps the first region. A third region is disposed on a surface that is of the substrate and that is away from the heat dissipation panel, and a projection of the chip in the thickness direction of the heat dissipation panel overlaps the third region. The substrate and the chip are packaged using a molding compound, and the second region is in contact with the molding compound.

Abstract: A communication method includes determining a reserved carrier in a bandwidth part (BWP) based on a tone reservation (TR) pattern and a first correspondence. The TR pattern includes a set of subcarriers used as reserved carriers. The first correspondence is a correspondence between an index that is of a subcarrier in the TR pattern and that is in the TR pattern and an index that is of the subcarrier in the TR pattern and that is based on a first common resource block (CRB). The communication method further includes outputting a time domain signal based on the reserved carrier in the BWP.

Abstract: The disclosure includes a communication method and a communication apparatus. The communication method includes the communication apparatus determining to use a reserved tone, determining a reference signal pattern and a tone reservation (TR) pattern, and performing data transmission based on the reference signal pattern and the TR pattern. The reference signal pattern includes a first reference signal sub-pattern and a second reference signal sub-pattern, and the second reference signal sub-pattern is an offset of the first reference signal sub-pattern in time domain and/or frequency domain. According to the method, a reference signal pattern having a plurality of different sub-patterns may be provided, so that reference signals are unevenly distributed on a bandwidth.

Abstract: A hybrid automatic repeat request (HARQ) process disabling method, a receiving device, and a sending device in communication, the method including a receiving device obtaining indication data, where the indication data is used to indicate to disable a HARQ process, and the receiving device disabling the HARQ process.

Abstract: A method includes: A communication apparatus receives information about an artificial intelligence (AI) connection, where the information about the AI connection includes at least one of the following configured for the AI connection: a model, a dataset, and a computing resource; and the communication apparatus sets up the AI connection to an AI node based on the information about the AI connection. The communication apparatus sets up the AI connection to the AI node based on the information about the AI connection including at least one of the model, the dataset, and the computing resource, so that AI-related signaling can be transmitted between the communication apparatus and the AI node based on the AI connection, and an AI-related operation is performed, to implement integration of AI and a wireless network.

Abstract: This application provides an information indication method and apparatus for a non-terrestrial communication network. The method includes: A terminal receives first indication information, where the first indication information includes a bandwidth part BWP indication field, and the BWP indication field indicates a BWP identifier offset; the terminal determines a second bandwidth part identifier BWP_ID based on the BWP identifier offset, where the second BWP_ID corresponds to a target beam of the terminal; and the terminal switches to the target beam. The method extends indication of BWP identifiers on a premise of compatibility with indication based on conventional downlink control information DCI.

Abstract: This application discloses a communication method. The method includes: A terminal device obtains a first message, where the first message carries target adjustment information. The terminal device obtains a second message, where the second message carries a timing advance (TA). The terminal device adjusts uplink sending time based on the target adjustment information and the TA. Embodiments of this application further provide a corresponding terminal device, network device, and storage medium.

Abstract: This application relates to the field of wireless communications technologies, and discloses an encoding method and apparatus, to improve accuracy of reliability calculation and ordering for polarized channels. The method includes: obtaining a first sequence used to encode K to-be-encoded bits, where the first sequence includes sequence numbers of N polarized channels, the first sequence is same as a second sequence or a subset of the second sequence, the second sequence comprises sequence numbers of Nmax polarized channels, and the second sequence is the sequence shown in Sequence Q11 or Table Q11, K is a positive integer, N is a positive integer power of 2, n is equal to or greater than 5, K?N, Nmax=1024; selecting sequence numbers of K polarized channels from the first sequence; and performing polar code encoding on K the to-be-encoded bits based on the selected sequence numbers of the K polarized channels.

Abstract: The present disclosure relates to power control methods and apparatuses. In one example method, a first uplink transmit power for a terminal device communicating with a source network device is adjusted, based on a first parameter, to obtain a second uplink transmit power, where the second uplink transmit power is used to communicate with a target network device in a handover process.

Abstract: A method includes: obtaining first semantic information corresponding to data; converting the first semantic information into second semantic information, where the second semantic information belongs to common semantic information, and the common semantic information is a unified description of same semantics that is provided by different devices; and sending the second semantic information. Based on the method provided in this application, when a semantic extraction model of a transmit device and a semantic understanding model of a receive device are not jointly trained, accuracy of semantic communication between the transmit device and the receive device may be ensured by converting local semantic information into common semantic information.

Abstract: A communication method includes determining a first bandwidth BW1, determining a second reserved tone pattern based on the first bandwidth BW1 and a first reserved tone pattern, and receiving or sending data based on the second reserved tone pattern. The first reserved tone pattern is a first tone index set corresponding to first reserved tones. The second reserved tone pattern is a second tone index set corresponding to second reserved tones. The second reserved tone pattern includes x translated first reserved tone patterns. A bandwidth corresponding to the first reserved tone pattern is a second bandwidth BW2, where x=int(BW1/BW2), and int represents a rounding function.

Abstract: A communication method and a communication apparatus are provided. The method includes: A first device receives first information, determines a target TR pattern based on the first information, and sends information or demodulates received information based on the target TR pattern, where the target TR pattern is a sub-pattern of a longest TR pattern, and the longest TR pattern includes a set of sub-carriers used as reserved tones. The longest TR pattern may include a plurality of TR sub-patterns of different lengths. For example, a first TR pattern of a first length is a sub-pattern of the longest TR pattern, and a second TR pattern of a second length is also a subset of the longest TR pattern. The TR sub-patterns of different lengths may correspond to different carrier bandwidths or quantities of RBs.