Abstract: A communication method and an apparatus. A terminal device (or an access network device) obtains a channel feature through inference by using a channel feature extraction model, where the channel feature corresponds to a channel between the terminal device and the access network device. The terminal device (or the access network device) sends the channel feature to a location management function LMF. The LMF obtains, based on the channel feature, positioning information of the terminal device through inference by using a positioning information obtaining model. The LMF may determine location information of the terminal device based on the positioning information. An artificial intelligence model may be used to implement positioning or assist in implementing positioning of the terminal device.

Abstract: An orchestration engine intermittently scans secrets, of different secret types, to identify secrets that are to be rotated. The orchestration engine calls an application programming interface (API) exposed by a serverless management system and wakes up the serverless management system. The serverless management system generates a new secret, stores the new secret for rotation, and interacts with a dependent system in order to revoke an old secret and implement the new secret. Once the secret is rotated, and the new secret is implemented, the orchestration engine stores the new secret in a secret store.

Abstract: This application provides example uplink transmit power determining methods and example terminal devices. One example method includes receiving, by a terminal device, a broadcast message that is sent by an access network device and that carries first power control information, where the first power control information is used to determine a modulation and coding scheme (MCS) compensation factor. The terminal device can then determine the MCS compensation factor based on the first power control information. The terminal device can then determine a first candidate uplink transmit power based on the MCS compensation factor. The terminal device can then determine a smaller value in the first candidate uplink transmit power and a second candidate uplink transmit power as a physical uplink shared channel (PUSCH) transmit power. The terminal device can then send PUSCH information in a random access message based on the PUSCH transmit power.

Abstract: A communication method and apparatus are provided. The method includes: obtaining N pieces of training data, where for one of the N pieces of training data, the training data corresponds to one piece of mark information, and the mark information indicates an attribute of the training data; and sending indication information to a terminal device, where the indication information indicates information about M artificial intelligence models, the artificial intelligence model is trained based on X pieces of training data in the N pieces of training data, and the X pieces of training data are determined based on the mark information. When the N pieces of training data are obtained, the N pieces of training data may be used for constructing training data corresponding to different mark information, to train the M artificial intelligence models or more artificial intelligence models, so that scenario-based artificial intelligence model training can be implemented.

Abstract: A random access method, a device, and a system are provided, related to the field of communications technologies.

Abstract: A random access method and an apparatus are described that provide improved transmission efficiency of a response message based on the response message scheduled by a plurality of PDCCHs. A terminal device receives a first control channel resource set used to monitor a common physical downlink control channel PDCCH and a second control channel resource set used to monitor a specific PDCCH that are sent by a network device. The terminal device sends a first message to the network device, and the terminal device monitors a first search space corresponding to the first control channel resource set and a second search space corresponding to the second control channel resource set to receive at least one of the common PDCCH and the specific PDCCH, to schedule a PDSCH that carries a response message of the first message.

Abstract: A data transmission method and a related apparatus. A sending device performs binary phase shift keying BPSK mapping on a to-be-transmitted bit sequence to obtain a first sequence. The sending device performs coding modulation on the first sequence based on a generator matrix or a first sub-matrix including some rows of the generator matrix, to obtain a symbol sequence. The sending device sends the symbol sequence to a receiving device through a channel.

Abstract: This application provides an artificial intelligence model download method, an apparatus, and a system. The method includes: A terminal device receives model feedback information from an access network device, where the model feedback information indicates a download mode that is of a first artificial intelligence model and that is configured for the terminal device, and the download mode that is of the first artificial intelligence model and that is configured for the terminal device is a download mode supported by the terminal device. The terminal device may download the first artificial intelligence model in the download mode indicated by the model feedback information. The terminal device can download the first artificial intelligence model supported by the terminal device, to avoid a case in which a downloaded artificial intelligence model cannot be used.

Abstract: A communication method and apparatus. A terminal receives first information from a network device. The terminal determines N pieces of training data based on the first information, and N is an integer. The terminal performs model training based on the N pieces of training data, to obtain a first AI model. The network device configures the first information used to determine the N pieces of training data for the terminal. The terminal performs model training based on the N pieces of training data autonomously. Separately configuring an AI model for the terminal is not necessary and air interface overheads are reduced.

Abstract: A communication method includes determining a first submodel and a second submodel. The first submodel and the second submodel are used in a matching manner. The communication method also includes sending first information. The first information indicates one or more of input data of the first submodel or output data of the first submodel.

Abstract: A model test method and an apparatus. A terminal receives first information from a network device. The terminal determines at least one test set based on the first information. The terminal tests an AI model based on the at least one test set, to obtain a test result. The terminal notifies the network device of the test result of the AI model.

Abstract: An access network device receives M pieces of first information of M local models from M terminal devices, where the M terminal devices one-to-one correspond to the M local models, the M local models one-to-one correspond to the M pieces of first information, and the M pieces of first information of the M local models are information received in first duration. The access network device updates a global model based on the M pieces of first information of the M local models and sends first information of the global model to K terminal devices. In the method, the first duration is set, to ensure that an update progress of local information matches an update progress of the global model and improve accuracy and performance of the global model obtained by the access network device.

Abstract: This disclosure relates to a communication method and apparatus. An access network device receives characteristic information of a downlink channel from a terminal device, and obtains information about a first codeword based on the characteristic information of the downlink channel and a first model. The first codeword is used for precoding.

Abstract: This application relates to a channel information feedback method, a channel information recovery method and an apparatus. In an example method, a terminal device receives a first reference signal from a network device. The terminal device obtains a first channel state matrix based on the first reference signal. The terminal device performs sampling on the first channel state matrix based on a first sparse pattern, to obtain a sparse channel state matrix, where the first sparse pattern is configured by the network device, and the first sparse pattern is used for performing sampling on at least one dimension of the first channel state matrix. The terminal device sends first channel information to the network device, where the first channel information indicates the sparse channel state matrix.

Abstract: A random access method, an apparatus, and a system are disclosed. A terminal device receives, from a network device, information about a PRACH resource set and information about one or more PUSCH resources associated with each PRACH resource in the PRACH resource set. If a first PUSCH resource associated with a valid first PRACH resource in the PRACH resource set is valid, the terminal device sends a first preamble sequence to the network device on the first PRACH resource, and sends uplink data to the network device on the first PUSCH resource. The network device receives the first preamble sequence from the terminal device on the first PRACH resource, and receives the uplink data from the terminal device on the first PUSCH resource. The first preamble sequence is a preamble sequence set associated with the first PUSCH resource.

Abstract: A communication method includes determining a first decoder and a first bit sequence based on N decoders, and sending first information useable to indicate the first bit sequence. An input of the first decoder includes the first bit sequence. An output of the first decoder includes first channel information, where N is a positive integer.

Abstract: Embodiments of this application provide a communication method and an apparatus. The method includes: A terminal device measures a downlink reference signal, to obtain third information. The terminal device determines first information and first scenario-related information of a downlink channel based on the third information, and sends the first information and the first scenario-related information to a network device. The network device determines second information based on the first scenario-related information and the first information, where the second information may be considered as reconstructed third information. The third information is reconstructed in the foregoing manner based on the scenario-related information, so that reconstruction precision of the third information can be improved.

Abstract: A communication method and apparatus. A terminal device determines channel state information based on S indexes of S vectors. Each of the S vectors is included in a first vector quantization dictionary. The first vector quantization dictionary includes N1 vectors, where N1 and S are both positive integers. The terminal device sends the channel state information to a network device. Because a vector included in the vector quantization dictionary usually has a relatively large dimension, quantizing channel information by using the first vector quantization dictionary is equivalent to performing dimension expansion on the channel information or maintaining a relatively high dimension. High-precision feedback is implemented by using relatively low signaling overheads.

Abstract: In a method for determining a resource of an asynchronous physical uplink shared channel PUSCH, user equipment (UE) receives time domain resource configuration information and frequency domain resource configuration information from a network device. The UE sets, based on the time domain resource configuration information, a time domain position of a first hop of a first PUSCH and a time domain position of a second hop of the first PUSCH to be inconsecutive in the time domain. The UE then determines a frequency domain position of the first hop of the first PUSCH and a frequency domain position of the second hop of the first PUSCH based on the frequency domain resource configuration information.

Abstract: This application provides a communication method and apparatus. According to the method, a first terminal apparatus can determine, based on second information, information that is in first demodulation information and second demodulation information and that is used to demodulate a first data stream, and determine information that is used to demodulate a second data stream. The first data stream is a common stream, and the second data stream is a private stream of the first terminal apparatus. The first terminal apparatus may first demodulate, based on the information that is used to demodulate the first data stream, a signal received by the first terminal apparatus on a first resource, to obtain the first data stream, and then may obtain the second data stream based on the first data stream, the information that is used to demodulate the second data stream, and the signal received on the first resource.