Abstract: A communication method is provided, including: an encoder compresses channel information of M layers by using at least two artificial intelligence AI models, to obtain N pieces of compressed information, where each of the N pieces of compressed information is obtained by compressing channel information of a part of layers in the channel information of the M layers, N and M are integers greater than 1, and N is less than M. The encoder sends the N pieces of compressed information to a decoder. Overheads caused by feeding back the channel information can be reduced. In addition, that N is less than M, that is, joint compression is performed on channel information of at least two of the M layers, can further reduce feedback overheads. Moreover, N being greater than 1 can reduce computational complexity.

Abstract: The present invention provides a communication method and apparatus, to reduce CSI feedback overheads of a plurality of frequency bands. The method includes: inputting channel information of a first frequency band and channel information of K second frequency bands to a first encoder, to determine first channel state indication information corresponding to the first frequency band, where the channel information of the K second frequency bands is correlated with the channel information of the first frequency band, and K is a positive integer; and sending the first channel state indication information.

Abstract: A quantization method is provided, to be applied to an application scenario in which two devices share a same quantization dictionary with dividing to-be-quantized information into a plurality of quantization parts and separately quantizing each quantization part. A representation format of a quantization dictionary is provided. The quantization dictionary may be represented by using a dictionary usage manner and dictionary content. In this representation format, a correspondence is actually established between R quantization parts of the to-be-quantized information and M quantization sub-dictionaries.

Abstract: In accordance with an embodiment, a method includes encoding channel information of N downlink transport layers using a first encoder to determine N pieces of first channel state indication information wherein N is a positive integer greater than 1; encoding the N pieces of first channel state indication information using a second encoder to determine second channel state indication information, wherein the second channel state indication information corresponds to the N downlink transport layers, and a sequence length corresponding to the second channel state indication information is less than a sum of sequence lengths corresponding to the N pieces of first channel state indication information; and sending the second channel state indication information.

Abstract: This application provides a channel information transmission method, a communication apparatus, and a communication device. The method includes: A first apparatus sends first information to a second apparatus, where the first information indicates a sparsity characteristic of a channel between the first apparatus and the second apparatus; the second apparatus determines a first processing parameter based on the first information; and the first apparatus receives second information from the second apparatus, where the second information indicates the first processing parameter, and the first processing parameter is for processing channel information. The technical solutions of this application can improve channel information feedback efficiency.

Abstract: This application provides a communication method, including: receiving first information from an access network device, where the first information indicates a first performance difference between performance of a first decoder in the access network device and performance of a second decoder in a terminal device; decoding, via the second decoder, an encoded bit stream corresponding to channel data, to obtain channel information; determining a first value of a rank based on the first performance difference and the channel information; and sending, to the access network device, the first value and a channel quality indicator corresponding to the first value.

Abstract: A communication method includes: receiving first compressed information from a terminal device, where the first compressed information is determined by the terminal device based on a first reference signal sent by an access network device using a first antenna activation mode, and the first compressed information represents first downlink channel information corresponding to an activated antenna port in the first antenna activation mode; and determining, based on the first compressed information and first information, second downlink channel information corresponding to a target antenna port, where the first information is determined based on at least one of a second reference signal or the first antenna activation mode, and the target antenna port includes an activated antenna port and an inactivated antenna port in the first antenna activation mode. Thereby, recovery precision of downlink channel information is improved.

Abstract: A model application method and an apparatus are provided. The method includes: determining first information based on a received reference signal, where the first information includes data of m ports for the reference signal; and mapping the data of the m ports to an input of a first model based on a correspondence between the m ports and n ports in an input dimension of the first model, to obtain an output of the first model, where both m and n are integers greater than or equal to 1, and m and n are not equal. By using the method and the apparatus in this application, self-adaptation to a port of the reference signal can be implemented, and model storage and training overheads can be reduced.

Abstract: A terminal device obtains M pieces of first downlink channel sub-data, where each piece of first downlink channel sub-data corresponds to one data space in M data spaces. For an ith piece of first downlink channel sub-data in the M pieces of first downlink channel sub-data, the terminal device determines, based on a first dictionary corresponding to an ith data space, first information corresponding to the ith piece of first downlink channel sub-data, where M pieces of first information are determined in total. The terminal device sends first indication information, to indicate the M pieces of first information. Different data spaces can represent different channel environment information. The terminal device feeds back first information corresponding to different data spaces, so that an access network device can determine a correspondence between first information and environment information. Accuracy of the first information fed back by the terminal device is improved.

Abstract: A terminal device obtains M channel estimation results. The terminal device jointly compresses the M channel estimation results by using a first encoder network, to obtain N pieces of compressed information and first state information, where the first state information represents downlink channel information, the downlink channel information includes information about downlink channels corresponding to the M channel estimation results, and the first state information is used to determine next input information of the first encoder network. The terminal device sends the N pieces of compressed information to an access network device. Downlink channels are correlated in time domain. When compressed information is obtained, in addition to a current downlink channel, a historical downlink channel is also referenced.

Abstract: The present disclosure provides a communication method. The method includes: determining first channel information, where the first channel information includes information in M1 dimensions, information in an ith dimension in the M1 dimensions includes Ni pieces of information, M1 is a positive integer greater than 1, i is a positive integer ranging from 1 to M1, and Ni is a positive integer greater than 1; determining channel state indication information based on second channel information, where the second channel information indicates partial information of Nm pieces of information in an mth dimension in the M1 dimensions, and m is a positive integer from 1 to M1; and sending first indication information and the channel state indication information, where the first indication information indicates a location of the second channel information in the first channel information.

Abstract: This disclosure provides an information transmission method and an apparatus. A first device receives N pieces of first node information from a second device, so that a first artificial intelligence model can be determined based on the N pieces of first node information and first link information, in other words, a structure of the first artificial intelligence model can be reconstructed. According to the method, when the second device indicates an artificial intelligence model to the first device, node information of a node and a connection relationship between nodes may be separately indicated. In addition, if the connection relationship between the nodes in the artificial intelligence model is a serial structure, the first link information may not be indicated, and only the node information is indicated, so that representation and transmission overheads of the artificial intelligence model can be reduced.

Abstract: This disclosure relates to a communication method and apparatus. A terminal device obtains M channel estimation results corresponding to M time units, where M is greater than 1. The terminal device performs joint compression on the M channel estimation results by using an encoder network, to obtain N pieces of compression information. The terminal device sends the N pieces of compression information to an access network device. Because the terminal device performs joint compression, correlation between downlink channels at different time points is fully utilized. The access network device recovers the N pieces of compression information obtained through joint compression, so that more accurate and effective downlink channel information can be obtained.

Abstract: The present disclosure relates to the technical field of plasma cleaning, and provides a plasma cleaning head for an optical member and a plasma cleaning device, including a plasma circulation assembly having a hollow shape and a lens frame mounted on the plasma circulation assembly, wherein the plasma circulation assembly is provided with an outlet port which is larger than an ejection port adapted to eject a plasma and is adapted to diffuse the plasma, and the lens frame is in communication with and surrounds the outlet port, and the lens frame is adapted to embed an optical lens body so that the optical lens body is arranged opposite to the outlet port to help improve dispersion and stability of the plasma flowing from the outlet port to the optical lens body, and helps to promote the energy absorption of the plasma by the optical lens body.

Abstract: A relay amplification method and system, and a storage medium are provided in the present disclosure. The relay amplification system includes a first antenna, a first RF transceiver, a second RF transceiver, and a second antenna which are connected in sequence, and the relay amplification method includes: determining whether power of a first I/Q signal output by the first RF transceiver changes with respect to power of a second I/Q signal output by the first RF transceiver; and if yes, controlling a gain of power adjustment for the first RF transceiver and a gain of power adjustment for the second RF transceiver respectively according to a power variation of the first I/Q signal, to make the power of the first I/Q signal remain unchanged with respect to the power of the second I/Q signal and a link gain between the first antenna and the second antenna remain unchanged.

Abstract: Provided are a communication control method, a communication device and a non-transitory computer-readable storage medium. The method includes: performing, by a 5G chip, cell search and synchronization with a base station; acquiring, by the 5G chip, timeslot ratio information of an uplink timeslot and a downlink timeslot; and controlling, by a 4G chip, on-off states of an amplification uplink and an amplification downlink based on the timeslot ratio information.