# US 12,603,684 B2 · Method and device for communication > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,603,684 B2 - Document ID: US12603684B2 - Status: Granted - Kind: B2 - Application number: 17/812,695 - Filed: 2022-07-14 - Published: 2022-11-03 - Granted: 2026-04-14 - Earliest claimed: 2020-01-19 - Assignees: Guangdong Oppo Mobile Telecommunications Corp., Ltd. - Applicants: Guangdong Oppo Mobile Telecommunications Corp., Ltd. - Inventors: Jiejiao Tian; Wenqiang Tian; Wenhong Chen - Web page: https://patentgrep.com/patent/US12603684B2 ## CPC - H04B 7/0417: Feedback systems - H04B 7/0626: {Channel coefficients, e.g. channel state information [CSI]} - G06N 3/0464: Convolutional networks [CNN, ConvNet] - H04B 7/0619: {using feedback from receiving side (feedback signaling for adaptive modulation/coding H04L1/0001)} - H04B 7/0645: {Variable feedback} - H04B 17/391: Modelling the propagation channel - H04L 5/0023: {Time-frequency-space} - H04L 5/0053: {Allocation of signalling, i.e. of overhead other than pilot signals} - H04L 5/0057: {Physical resource allocation for CQI} - H04L 25/0224: {using sounding signals} - H04L 25/0254: {using neural network algorithms} - G06N 3/045: Combinations of networks - H04L 5/005: {of common pilots, i.e. pilots destined for multiple users or terminals} - H04B: TRANSMISSION - G06N: COMPUTING ARRANGEMENTS BASED ON SPECIFIC COMPUTATIONAL MODELS - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) ## Abstract Provided are a method and device for communication. The method comprises: a network device transmits first information to a terminal device, the first information being used for indicating whether the network device acquires downlink channel information via an artificial intelligence algorithm model, and the artificial intelligence algorithm model being constructed by training with past uplink channel information and past downlink channel information serving as samples. A terminal device measures a channel state on the basis of the first information to acquire channel state information. ## Claims ### Claim 1 A communication method, comprising: receiving first information sent by a network device, wherein the first information is configured to indicate whether the network device obtains downlink channel information through an artificial intelligence algorithm model, and the artificial intelligence algorithm model is established by training using historical uplink channel information and historical downlink channel information as samples; and measuring channel state according to the first information to obtain channel state information, wherein the measuring channel state according to the first information to obtain the channel state information, comprises: in a case that the first information indicates that the network device obtains the downlink channel information through the artificial intelligence algorithm model, determining a first configuration parameter, for performing channel state measurement to obtain the channel state information; and in a case that the first information indicates that the network device does not obtain the downlink channel information through the artificial intelligence algorithm model, determining a second configuration parameter, for performing channel state measurement to obtain the channel state information; wherein time-frequency resources and/or port densities of the first configuration parameter and the second confirmation parameter of channel state are different; wherein the method further comprises: receiving second information from the network device, wherein in a case that the downlink channel information is obtained through the artificial intelligence algorithm model, the second information is configured to indicate the terminal device to use a first type to report the channel state information; and wherein in a case that the downlink channel information is not obtained through the artificial intelligence algorithm model, the second information is configured to indicate the terminal device to use a second type to report the channel state information, and reporting the channel state information to the network device according to the first type or the second type, wherein an amount of information reported for the first type is less than an amount of information reported for the second type. ### Claim 2 A communication apparatus, comprising: a processor and a memory; wherein the memory is configured to store a computer program, and the processor is configured to invoke and run the computer program stored in the memory to: send first information to a terminal device, wherein the first information is configured to indicate whether a network device obtains downlink channel information through an artificial intelligence algorithm model, and the artificial intelligence algorithm model is established by training using historical uplink channel information and historical downlink channel information as samples, in a case that the first information indicates that the network device obtains the downlink channel information through the artificial intelligence algorithm model, the first information is used for the terminal device to determine a first configuration parameter, for performing channel state measurement to obtain the channel state information; and in a case that the first information indicates that the network device does not obtain the downlink channel information through the artificial intelligence algorithm model, the first information is used for the terminal device to determine a second configuration parameter, for performing channel state measurement to obtain the channel state information; wherein time-frequency resources and/or port densities of the first configuration parameter and the second configuration parameter of channel state are different; wherein the processor is further configured to: send second information to the terminal device, wherein in a case that the downlink channel information is obtained through the artificial intelligence algorithm model, the second information is configured to indicate the terminal device to use a first type to report the channel state information; wherein in a case that the downlink channel information is not obtained through the artificial intelligence algorithm model, the second information is configured to indicate the terminal device to use a second type to report the channel state information; and wherein an amount of information reported for the first type is less than an amount of information reported for the second type. ### Claim 3 (depends on 2) The apparatus according to claim 2, wherein the first information is further configured to indicate whether the network device has channel reciprocity, or, wherein the first information is sent to the terminal device through broadcast information; or the first information is sent to the terminal device through a random access procedure; or the first information is sent to the terminal device through a Radio Resource Control (RRC) dedicated signaling; or the first information is sent to the terminal device through a Media Access Control-Control Element (MAC-CE); or the first information is sent to the terminal device through Downlink Control Information (DCI). ### Claim 4 (depends on 2) The apparatus according to claim 2, wherein the at least one configuration parameter of channel state is sent to the terminal device through broadcast information or a Radio Resource Control (RRC) dedicated signaling. ### Claim 5 (depends on 2) The apparatus according to claim 2, wherein: the second information is sent to the terminal device through broadcast information; or the second information is sent to the terminal device through a random access procedure; or the second information is sent to the terminal device through a Radio Resource Control (RRC) dedicated signaling; or the second information is sent to the terminal device through a Media Access Control-Control Element (MAC-CE); or the second information is sent to the terminal device through Downlink Control Information (DCI). ### Claim 6 (depends on 2) The apparatus according to claim 2, wherein the artificial intelligence algorithm model comprises: a deep learning model and/or a machine learning model, wherein the deep learning model comprises a convolutional neural network module, and the machine learning model comprises at least one of the following models: a classification algorithm model, a regression algorithm model, a clustering algorithm model and a dimensionality reduction algorithm model. ### Claim 7 A communication apparatus, comprising: a processor and a memory; wherein the memory is configured to store a computer program, and the processor is configured to invoke and run the computer program stored in the memory to: receive first information sent by a network device, wherein the first information is configured to indicate whether the network device obtains downlink channel information through an artificial intelligence algorithm model, and the artificial intelligence algorithm model is established by training using historical uplink channel information and historical downlink channel information as samples; and measure channel state according to the first information to obtain channel state information, wherein the processor is further configured to: in a case that the first information indicates that the network device obtains the downlink channel information through the artificial intelligence algorithm model, determine a first configuration parameter, for performing channel state measurement to obtain the channel state information; and in a case that the first information indicates that the network device does not obtain the downlink channel information through the artificial intelligence algorithm model, determine a second configuration parameter, for performing channel state measurement to obtain the channel state information; wherein the processor is further configured to: receive second information from the network device, wherein in a case that the downlink channel information is obtained through the artificial intelligence algorithm model, the second information is configured to indicate the communication apparatus to use a first type to report the channel state information; wherein in a case that the downlink channel information is not obtained through the artificial intelligence algorithm model, the second information is configured to indicate the communication apparatus to use a second type to report the channel state information, and report the channel state information to the network device according to the first type or the second type, wherein an amount of information reported for the first type is less than an amount of information reported for the second type. ### Claim 8 (depends on 7) The apparatus according to claim 7, wherein the first information is further configured to indicate whether the network device has channel reciprocity, or, wherein the first information is sent to the communication apparatus through broadcast information; or the first information is sent to the communication apparatus through a random access procedure; or the first information is sent to the communication apparatus through a Radio Resource Control (RRC) dedicated signaling; or the first information is sent to the communication apparatus through a Media Access Control-Control Element (MAC-CE); or the first information is sent to the communication apparatus through a Downlink Control Information (DCI). ### Claim 9 (depends on 7) The apparatus according to claim 7, wherein the at least one configuration parameter of channel state is sent to the communication apparatus through broadcast information or a Radio Resource Control (RRC) dedicated signaling. ### Claim 10 (depends on 7) The apparatus according to claim 7, wherein: the second information is sent to the communication apparatus through broadcast information; or the second information is sent to the communication apparatus through a random access procedure; or the second information is sent to the communication apparatus through a Radio Resource Control (RRC) dedicated signaling; or the second information is sent to the communication apparatus through a Media Access Control-Control Element (MAC-CE); or the second information is sent to the communication apparatus through Downlink Control Information (DCI). ### Claim 11 (depends on 7) The apparatus according to claim 7, wherein the artificial intelligence algorithm model comprises: a deep learning model and/or a machine learning model, wherein the deep learning model comprises a convolutional neural network module, and the machine learning model comprises at least one of the following models: a classification algorithm model, a regression algorithm model, a clustering algorithm model and a dimensionality reduction algorithm model.