Wi-Fi 连接与资源请求

flowchart TD
Connect["连接 Wi-Fi"] --> Request["提交资源 Request"]
Request --> Policy{"screen / OTA / call / busy 允许?"}
Policy -- 否 --> Deny["具体 Decision"]
Policy -- 是 --> Lease["签发可撤销 Lease"]
Lease --> Work["有界工作"]
Work --> Release["release"]