# US 2026/0074979 A1 · Communication method, apparatus, and system, and storage medium > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2026/0074979 A1 - Document ID: US20260074979A1 - Status: Published application - Kind: A1 - Application number: 19/384,157 - Filed: 2025-11-10 - Published: 2026-03-12 - Earliest claimed: 2023-05-12 - Assignees: Huawei Technologies Co., Ltd. - Applicants: Huawei Technologies Co., Ltd. - Inventors: Dan Wang; Han Zhou; Xinpeng Wei - Web page: https://patentgrep.com/patent/US20260074979A1 ## CPC - H04L 43/0876: Network utilisation, e.g. volume of load or congestion level - H04W 36/0055: {Transmission or use of information for re-establishing the radio link} - H04L 47/11: Identifying congestion - H04W 28/02: Traffic management, e.g. flow control or congestion control - H04W 28/0289: {Congestion control (load shedding arrangements in network planning H04W16/08; performing reselection for handling the traffic H04W36/22; wireless traffic scheduling H04W72/12)} - H04W 36/00: Hand-off or reselection arrangements - H04W 36/22: for handling the traffic - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract This application discloses a communication method, apparatus, and system, and a storage medium. If a first access network device determines that switching occurs, the first access network device sends network status information. This improves timeliness of reporting the network status information. ## Claims ### Claim 1 A communication method, wherein the method comprises: determining, by a first access network device, that switching occurs, wherein that switching occurs is that switching from a second access network device to the first access network device is performed; and sending, by the first access network device, network status information. ### Claim 2 (depends on 1) The method according to claim 1, wherein the network status information indicates at least one of the following: a network congestion degree, whether network congestion occurs, or congestion information. ### Claim 3 (depends on 1) The method according to claim 1, wherein the network status information is used to trigger determining of a transmission policy based on the network status information. ### Claim 4 (depends on 3) The method according to claim 3, wherein the transmission policy comprises a transmission rate; and the network status information is used to trigger adjustment of the transmission rate based on the network status information. ### Claim 5 (depends on 1) The method according to claim 1, wherein sending, by the first access network device, the network status information comprises: sending, by the first access network device, the network status information when switching starts, during switching, or after switching is completed. ### Claim 6 (depends on 5) The method according to claim 5, wherein sending, by the first access network device, the network status information during switching comprises: receiving, by the first access network device, an N3 interface end marker, and sending the network status information; or receiving, by the first access network device, a switching request, and sending the network status information. ### Claim 7 A communication method, wherein the method comprises: determining, by a first network element, that a network status information reporting condition is met; and sending, by the first network element, network status information to a second network element, wherein the network status information indicates that a network is no longer congested. ### Claim 8 (depends on 7) The method according to claim 7, wherein the network status information indicates a network congestion status, and the network congestion status comprises at least one of the following: the network is no longer congested, a network congestion percentage is 0%, and the network congestion percentage is less than or equal to a first threshold; or the network status information is a data packet, and the data packet does not comprise a congestion marker. ### Claim 9 (depends on 7) The method according to claim 7, wherein the network status information reporting condition comprises at least one of the following: the first network element generates an N3 interface end marker, and sends the network status information; the first network element receives an N3 interface end marker, and sends the network status information; and the first network element sends the N3 interface end marker to a source base station, and sends the network status information; wherein the N3 interface end marker indicates to no longer send data to a source access network device. ### Claim 10 (depends on 7) The method according to claim 7, wherein sending, by the first network element, the network status information to the second network element comprises: sending, by the first network element, the network status information to the second network element through at least one of a session management function network element, a policy control function network element, and a network exposure function entity; or sending, by the first network element, the network status information to the second network element through the policy control function network element and/or the network exposure function entity. ### Claim 11 (depends on 10) The method according to claim 10, wherein before the sending, by the first network element, the network status information to the second network element, the method further comprises: receiving, by the first network element, indication information from a third network element, wherein the indication information indicates the network congestion status. ### Claim 12 A communication apparatus, comprising a processor, wherein the processor is coupled to a memory, the memory is configured to store instructions, and when the programs or the instructions are executed by the processor, the apparatus is enabled to perform: determining that switching occurs, wherein that switching occurs is that switching from a second access network device to the first access network device is performed; and sending network status information.