Patent No. US9198076 (titled "Wireless end-user device with power-control-state-based wireless network access policy for background applications") on Apr 16, 2015. The application was issued on Nov 24, 2015.
’076 is related to the field of wireless network management and mobile device power optimization. Specifically, it addresses the technical challenge of preserving network capacity and device battery life by managing how background applications consume data over a wireless wide-area network (WWAN). The background context involves the increasing strain on cellular networks caused by standard Internet devices that frequently initiate small, inefficient data transmissions without regard for the network's congestion state or the device's power status.
The underlying idea behind ’076 is to implement a device-side intelligence that differentiates between application traffic based on the user's current interaction level. The system recognizes that applications often perform data tasks in the background that are not immediately beneficial to the user. By classifying whether an application is currently in the user interface foreground or operating autonomously, the device can dynamically apply access rules that prevent unnecessary network signaling and data consumption during specific power-sensitive or network-constrained states.
The claims of ’076 focus on a wireless end-user device equipped with a WWAN modem and a processor that monitors Internet access requests from applications. The independent claims specifically cover the mechanism of classifying a first end-user application as either interacting with a user in the foreground or performing background activities. Based on this classification and the current power control state of the device, the system determines whether to allow or disallow the network request, effectively blocking background data when the device is in a specific restricted power mode.
In practice, the invention works by intercepting network requests at the device level before they consume over-the-air spectrum. If an application attempts to sync data or check for updates while the device is in a power-saving mode and the user is not actively using that application, the request is disallowed. This prevents the modem from frequently transitioning between idle and active states, which is a major source of battery drain and signaling overhead on cellular base stations. When the device transitions to a different power state or the user brings the application to the foreground, the access policy is updated to allow the communication.
This approach differs from prior solutions that rely on centralized network equipment, such as Deep Packet Inspection (DPI) gateways, to block traffic. Unlike those methods, which still allow the device to consume wireless spectrum to initiate a connection before the traffic is blocked deep in the core network, this invention preserves last-edge network capacity by stopping the request at the source. By managing access based on the combination of application visibility and device power states, it provides a more granular and efficient way to protect network resources without degrading the immediate user experience.
In the mid-2010s when ’076 was filed, mobile data networks were transitioning to high-capacity architectures like LTE, yet remained significantly constrained by the disproportionate signaling and traffic demands of smartphone applications. At a time when network management was typically implemented using centralized core-network solutions, systems commonly relied on server-side policy enforcement that lacked visibility into specific device-side application states. Hardware and software constraints made it non-trivial to prevent network congestion caused by background processes, frequent modem power-state transitions, and persistent signaling chatter without negatively impacting the user experience or prematurely draining device battery life.
The disclosed invention represents a meaningful technical advancement through the integration of device-assisted service (DAS) techniques that shift network capacity protection from a purely centralized model to a distributed, device-aware architecture. By implementing a service processor on the mobile device that monitors and classifies network service usage activities—such as background synchronization, software updates, and signaling requests—the system enables differential control of traffic based on the real-time busy state of the network edge. This architectural shift allows for the granular management of autonomous application behavior, such as delaying or aggregating background transfers and intercepting modem power-state changes, thereby reducing unnecessary signaling overhead and preserving radio access network resources while maintaining functional device operation through coordinated user notifications.
This patent contains a total of 16 claims, with claim 1 serving as the sole independent claim. The independent claim focuses on a wireless end-user device that manages internet access requests by classifying whether an application is actively interacting with a user in the foreground and then allowing or disallowing those requests based on that classification and the current power control state of the device. The dependent claims serve to further define the criteria for user interaction classification, specify various power control states for the device or modem, and outline additional processing behaviors such as queuing requests, handling secondary applications, and managing user interface notifications or state transitions for applications when access is denied.
Definitions of key terms used in the patent claims.
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