# US 12,225,466 B2 · Scheduling method, access point, and station > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,225,466 B2 - Document ID: US12225466B2 - Status: Granted - Kind: B2 - Application number: 17/750,127 - Filed: 2022-05-20 - Published: 2022-11-03 - Granted: 2025-02-11 - Earliest claimed: 2016-07-19 - Assignees: Huawei Technologies Co., Ltd. - Applicants: Huawei Technologies Co., Ltd. - Inventors: Mao Yang; Bo Li; Yanchun Li - Web page: https://patentgrep.com/patent/US12225466B2 ## CPC - H04W 52/0229: {where the received signal is a wanted signal} - H04W 72/12: Wireless traffic scheduling - H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal - H04W 48/10: using broadcasted information - H04W 74/006: {in the downlink, i.e. towards the terminal} - H04W 84/12: WLAN [Wireless Local Area Networks] - Y02D 30/70: in wireless communication networks - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) - Y02D: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE ## Abstract This application discloses a scheduling method, an access point, and a station. The method includes: generating, by an access point AP, a first frame, where the first frame includes reservation information of each of at least one trigger frame, a first trigger frame is any one of the at least one trigger frame, and reservation information of the first trigger frame includes an identifier of the first trigger frame, start time of the first trigger frame, and a constraint condition of a station STA corresponding to the first trigger frame; and broadcasting, by the AP, the first frame to at least one STA. Therefore, by using the method provided in the present invention, dynamic network changes can be supported through unified scheduling of the AP, and this is favorable to coordination between the AP and the STA, thereby better reducing power consumption of the STA. ## Claims ### Claim 1 A scheduling method, comprising: receiving, by a station (STA), a first frame broadcast by an access point (AP), wherein the first frame comprises reservation information of each of at least one trigger frame, a first trigger frame is any one of the at least one trigger frame, and reservation information of the first trigger frame comprises an identifier of the first trigger frame, start time of the first trigger frame, and a constraint condition of a station STA corresponding to the first trigger frame; and transmitting, by the STA, uplink data based on the reservation information including the constraint condition of the at least one trigger frame. ### Claim 2 (depends on 1) The method according to claim 1, wherein the at least one trigger frame comprises at least one of a trigger frame used for contention access or a trigger frame used for non-contention access. ### Claim 3 (depends on 2) The method according to claim 2, wherein the constraint condition comprises at least one of user group information corresponding to the first trigger frame or service type information corresponding to the first trigger frame. ### Claim 4 (depends on 3) The method according to claim 3, wherein the first frame further comprises information used to indicate start time of a second frame. ### Claim 5 (depends on 4) The method according to claim 4, further comprising: receiving, by the STA, the second frame sent by the AP, wherein the start time of the second frame is earlier than the start time of the first trigger frame, and the second frame comprises information used for informing the STA that the first trigger frame is deleted. ### Claim 6 (depends on 1) The method according to claim 1, wherein the reservation information of the first trigger frame further comprises: information used to indicate whether the first trigger frame is a force-to-wake-up trigger frame or a non-force-to-wake-up trigger frame. ### Claim 7 (depends on 1) The method according to claim 1, wherein the reservation information of the first trigger frame further comprises: information used to indicate that the first trigger frame is used for downlink transmission. ### Claim 8 (depends on 1) The method according to claim 1, wherein the reservation information of the first trigger frame further comprises: information used to indicate an operation performed on the first trigger frame, and the operation comprises addition, modification, or deletion. ### Claim 9 A station (STA), comprising: a receiver configured to receive a first frame broadcast by an access point (AP), wherein the first frame comprises reservation information of each of at least one trigger frame, a first trigger frame is any one of the at least one trigger frame, and reservation information of the first trigger frame comprises an identifier of the first trigger frame, start time of the first trigger frame, and a constraint condition of a station STA corresponding to the first trigger frame; and a transmitter configured to transmit uplink data based on the reservation information including the constraint condition of the at least one trigger frame. ### Claim 10 (depends on 9) The STA according to claim 9, wherein the at least one trigger frame comprises at least one of a trigger frame used for contention access or a trigger frame used for non-contention access. ### Claim 11 (depends on 10) The STA according to claim 10, wherein the constraint condition comprises at least one of user group information corresponding to the first trigger frame or service type information corresponding to the first trigger frame. ### Claim 12 (depends on 11) The STA according to claim 11, wherein the first frame further comprises information used to indicate start time of a second frame. ### Claim 13 (depends on 12) The STA according to claim 12, wherein the receiver is further configured to: receive the second frame sent by the AP, wherein the start time of the second frame is earlier than the start time of the first trigger frame, and the second frame comprises information used for informing the STA that the first trigger frame is deleted. ### Claim 14 (depends on 9) The STA according to claim 9, wherein the reservation information of the first trigger frame further comprises: information used to indicate whether the first trigger frame is a force-to-wake-up trigger frame or a non-force-to-wake-up trigger frame. ### Claim 15 (depends on 9) The STA according to claim 9, wherein the reservation information of the first trigger frame further comprises: information used to indicate that the first trigger frame is used for downlink transmission. ### Claim 16 (depends on 9) The STA according to claim 9, wherein the reservation information of the first trigger frame further comprises: information used to indicate an operation performed on the first trigger frame, and the operation comprises addition, modification, or deletion. ### Claim 17 A non-transitory computer-readable storage medium having program instructions stored therein, which when executed by a processor, cause the processor to perform operations, the operations comprising: receiving, by a station (STA), a first frame broadcast by an access point (AP), wherein the first frame comprises reservation information of each of at least one trigger frame, a first trigger frame is any one of the at least one trigger frame, and reservation information of the first trigger frame comprises an identifier of the first trigger frame, start time of the first trigger frame, and a constraint condition of a station STA corresponding to the first trigger frame; and transmitting, by the STA, uplink data based on the reservation information including the constraint condition of the at least one trigger frame. ### Claim 18 (depends on 17) The non-transitory computer-readable storage medium according to claim 17, wherein the at least one trigger frame comprises at least one of a trigger frame used for contention access or a trigger frame used for non-contention access. ### Claim 19 (depends on 18) The non-transitory computer-readable storage medium according to claim 18, wherein the constraint condition comprises at least one of user group information corresponding to the first trigger frame or service type information corresponding to the first trigger frame. ### Claim 20 (depends on 19) The non-transitory computer-readable storage medium according to claim 19, wherein the first frame further comprises information used to indicate start time of a second frame.