Communication method and communication apparatus

{
  "publication_number": "US2026107236A1",
  "country": "US",
  "kind": "A1",
  "title": "Communication method and communication apparatus",
  "abstract": "A communication method includes sending first channel state information (CSI) feedback information to a network device. The communication method also includes receiving first indication information from the network device. The communication method further includes sending one or more pieces of CSI feedback information to the network device based on the first indication information. The one or more pieces of CSI feedback information include the first CSI feedback information.",
  "claims": [
    "1. A communication method, comprising: sending first channel state information (CSI) feedback information to a network device; receiving first indication information from the network device; and sending one or more pieces of CSI feedback information to the network device based on the first indication information, wherein the one or more pieces of CSI feedback information comprise the first CSI feedback information. 2. The communication method according to claim 1, further comprising: receiving second indication information from the network device, wherein the second indication information indicates to increase uplink transmit power. 3. The communication method according to claim 1, wherein the sending the first CSI feedback information to the network device comprises: sending the first CSI feedback information to the network device on a first uplink resource indicated by first uplink resource configuration information; and the receiving the first indication information from the network device comprises: receiving the first indication information and second uplink resource configuration information from the network device, wherein the second uplink resource configuration information indicates a second uplink resource used to transmit the one or more pieces of CSI feedback information, and a resource quantity for an uplink resource that is in the second uplink resource and that is used to transmit the first CSI feedback information is greater than a resource quantity for the first uplink resource. 4. The communication method according to claim 1, wherein the first indication information is used to determine the one or more pieces of CSI feedback information. 5. The communication method according to claim 4, wherein the first indication information indicates at least one of an identifier of the one or more pieces of CSI feedback information, an identifier of a reference signal corresponding to the one or more pieces of CSI feedback information, a first time period, identifiers of K pieces of CSI feedback information comprising the one or more pieces of CSI feedback information, or identifiers of reference signals corresponding to the K pieces of CSI feedback information, wherein K is a positive integer, the first time period is before a sending moment of the first indication information, and a sending moment of the one or more pieces of CSI feedback information is within the first time period, or a sending moment of the K pieces of CSI feedback information is within the first time period. 6. The communication method according to claim 1, wherein a quantity of reporting failure times of CSI feedback information reaches a first threshold. 7. The communication method according to claim 6, wherein the first threshold is predefined or preconfigured, or the first threshold is a ratio of a tolerance interval of a first artificial intelligence (AI) model to a sending periodicity of a reference signal, and the tolerance interval is predefined or preconfigured. 8. The communication method according to claim 1, wherein the first CSI feedback information is an output of a second AI model or is based on the output of the second AI model, an input of the second AI model comprises a channel measurement result of a first reference signal, the output of the second AI model is related to the channel measurement result of the first reference signal and a first historical input of the second AI model, the first historical input of the second AI model comprises a channel measurement result of a first historical reference signal, and a sending moment of the first historical reference signal is earlier than a sending moment of the first reference signal; and when the first CSI feedback information is successfully reported, channel information corresponding to the first reference signal is an output of the first AI model, and an input of the first AI model comprises the first CSI feedback information or is based on the first CSI feedback information, wherein the output of the first AI model is related to the first CSI feedback information and a first historical input of the first AI model, the first historical input of the first AI model comprises first historical CSI feedback information or is based on the first historical CSI feedback information, and a receiving moment of the first historical CSI feedback information is earlier than a receiving moment of the first CSI feedback information. 9. A communication method, comprising: sending first uplink resource configuration information to a terminal device, wherein the first uplink resource configuration information indicates a first uplink resource used to transmit first channel state information (CSI) feedback information; sending first indication information and second uplink resource configuration information to the terminal device, wherein the first indication information indicates the terminal device to send one or more pieces of CSI feedback information, the second uplink resource configuration information indicates a second uplink resource used to transmit the one or more pieces of CSI feedback information, and the one or more pieces of CSI feedback information comprise the first CSI feedback information; and receiving the one or more pieces of CSI feedback information from the terminal device. 10. The communication method according to claim 9, further comprising: sending second indication information to the terminal device, wherein the second indication information indicates to increase uplink transmit power. 11. The communication method according to claim 9, wherein a resource quantity for an uplink resource that is in the second uplink resource and that is used to transmit the first CSI feedback information is greater than a resource quantity for the first uplink resource. 12. The communication method according to claim 9, wherein the first indication information is used to determine the one or more pieces of CSI feedback information. 13. The communication method according to claim 12, wherein the first indication information indicates at least one of an identifier of the one or more pieces of CSI feedback information, an identifier of a reference signal corresponding to the one or more pieces of CSI feedback information, a first time period, identifiers of K pieces of CSI feedback information comprising the one or more pieces of CSI feedback information, or identifiers of reference signals corresponding to the K pieces of CSI feedback information, wherein K is a positive integer, the first time period is before a sending moment of the first indication information, and a sending moment of the one or more pieces of CSI feedback information is within the first time period, or a sending moment of the K pieces of CSI feedback information is within the first time period. 14. The communication method according to claim 9, wherein a quantity of reporting failure times of CSI feedback information reaches a first threshold. 15. The communication method according to claim 14, wherein the first threshold is predefined or preconfigured, or the first threshold is a ratio of a tolerance interval of a first AI model to a sending periodicity of a reference signal, and the tolerance interval is predefined or preconfigured. 16. The communication method according to claim 9, wherein the first CSI feedback information is an output of a second AI model or is based on the output of the second AI model, an input of the second AI model comprises a channel measurement result of a first reference signal, the output of the second AI model is related to the channel measurement result of the first reference signal and a first historical input of the second AI model, the first historical input of the second AI model comprises a channel measurement result of a first historical reference signal, and a sending moment of the first historical reference signal is earlier than a sending moment of the first reference signal; and when the first CSI feedback information is successfully reported, channel information corresponding to the first reference signal is an output of the first AI model, and an input of the first AI model comprises the first CSI feedback information or is based on the first CSI feedback information, wherein the output of the first AI model is related to the first CSI feedback information and a first historical input of the first AI model, the first historical input of the first AI model comprises first historical CSI feedback information or is based on the first historical CSI feedback information, and a receiving moment of the first historical CSI feedback information is earlier than a receiving moment of the first CSI feedback information. 17. A communication apparatus, comprising: a processor; and a memory having instructions stored thereon that, when executed by the processor, cause the communication apparatus to: send first channel state information (CSI) feedback information to a network device; receive first indication information from the network device; and send one or more pieces of CSI feedback information to the network device based on the first indication information, wherein the one or more pieces of CSI feedback information comprise the first CSI feedback information. 18. The communication apparatus according to claim 17, wherein the communication apparatus is further caused to: receive second indication information from the network device, wherein the second indication information indicates to increase uplink transmit power. 19. The communication apparatus according to claim 17, wherein the communication apparatus is caused to send the first CSI feedback information to the network device by: sending the first CSI feedback information to the network device on a first uplink resource indicated by first uplink resource configuration information; and the communication apparatus is caused to receive the first indication information from the network device by: receiving the first indication information and second uplink resource configuration information from the network device, wherein the second uplink resource configuration information indicates a second uplink resource used to transmit the one or more pieces of CSI feedback information, and a resource quantity for an uplink resource that is in the second uplink resource and that is used to transmit the first CSI feedback information is greater than a resource quantity for the first uplink resource. 20. The communication apparatus according to claim 17, wherein the first indication information is used to determine the one or more pieces of CSI feedback information."
  ],
  "description_excerpt": "Embodiments of this application relate to the communication field, and more specifically, to a communication method and a communication apparatus.\n\nIn a communication system, a network device needs to determine, based on downlink channel state information (CSI), downlink channel-related configuration information such as a resource, a modulation and coding scheme (MCS), and precoding that are used to schedule a downlink data channel for a terminal device. The terminal device may calculate the downlink CSI by measuring a downlink reference signal, generate a CSI report, and feed back the CSI report to the network device.\n\nAfter artificial intelligence (AI) is introduced into wireless communication, an AI-based CSI feedback mode emerges. An AI model has a stronger feature extraction capability, can compress channel information more effectively, reduce an information loss in a compression process, and ensure accuracy of recovered channel information.\n\nFrequent packet losses of CSI feedback information severely affect feedback performance. Time-domain correlation-based CSI feedback is used as an example. An AI model on a terminal device side outputs CSI feedback information based on a current channel measurement result and state information; and an AI model on a network device side recovers channel information based on current CSI feedback information and state information. The state information on the terminal device side is determined based on a historical channel measurement result. The state information on the network device side is determined based on CSI feedback information received at a historical moment.",
  "cpc": [
    "H04W 52/241",
    "H04W 52/146"
  ],
  "ipc": [
    "H04W 52/14",
    "H04W 52/24"
  ],
  "assignees": [
    "Huawei Technologies Co Ltd"
  ],
  "inventors": [
    "Yang Tian",
    "Jiaxuan CHEN",
    "Xiaomeng CHAI",
    "Yan Sun",
    "Jing Liang",
    "Huangping JIN"
  ],
  "filing_date": "2025-12-05",
  "publication_date": "2026-04-16",
  "priority_date": "2023-06-07",
  "application_number": "US-202519410122-A",
  "family_id": "93715853",
  "cited_by_count": 0
}