Wireless end-user device with power-control-state-based wireless network access policy for background applications

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.

What is this patent about?

’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.

How does this patent fit in bigger picture?

Technical Landscape

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.

Prosecution Position

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.

Claims

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.

Key Claim Terms New

Definitions of key terms used in the patent claims.

Term (Source)Support for SpecificationInterpretation
Classify
(Claim 1)
Classifying the network service usage activity includes associating the activity with a network service usage control policy based on a classification to facilitate differential network access control. This can involve checking whether a condition is satisfied, such as examining if a user has interacted with the device or if the activity is on a background service list. The categorization facilitates identification of a snapshot of service class use at a given time.The process of identifying and categorizing a network service usage activity based on its characteristics, such as whether it is a foreground or background process.
Disallowed
(Claim 1)
Controlling network service usage activities can include classifying and/or controlling network access requests so that they are withheld, delayed, or otherwise controlled. Implementing traffic control for network capacity controlled services is provided by intercepting opens/connects/writes or socket open/send requests. An intercepted request can be dropped (e.g., blocked) to protect network capacity.A traffic control action where a requested network access is blocked, deferred, or prevented from utilizing the WWAN resources based on specific policy triggers.
Interacting with the user in the device user interface foreground
(Claim 1)
Classification rules can include examining if the service usage activity UI content is in the foreground of the device UI. A network service usage activity is determined to be an active application or process based on a user interaction with the device and/or network service usage activity. This facilitates identifying whether the user is directly interacting with or benefiting from the application.A state where an application is actively engaged with a user through the device's primary display area, typically characterized by the application's content being visible and responsive to user input.
Internet service activities
(Claim 1)
Examples of a network service usage activity include a voice connection, a device application or widget connection, an email text connection, a file download connection, a streaming media connection, and software or firmware updates. These activities can be generated by applications, operating system (OS) functions, and/or other software executed on a device. They include any activity by the device that includes wireless network communication.Data-related tasks or communications initiated by applications or the operating system that require a connection to the Internet via a network modem.
Power control state
(Claim 1)
Device behavior can be impacted by the way the device, device subsystem, and/or modem subsystem power cycling or transitions from one power save state to another. For example, a device may move into an idle mode to preserve battery life. Network service usage activity control policies can limit the ability of applications to change the modem power control state or network connection state.The operational or energy-consumption mode of the device or its modem, which determines whether network connections are active, idle, or restricted.
User interface foreground
(Claim 1)
Classification rules can include examining if the service usage activity UI content is in the foreground of the device UI. This helps determine if a user is currently interacting with the device or the specific service usage activity. In some embodiments, a service activity is classified as a network capacity controlled service when the user has not interacted with it for a period of time.The active state of a device's display where an application is currently visible and interacting with the user, as opposed to running in the background.
Wireless wide area network (WWAN) modem
(Claim 1)
The device includes a modem subsystem that transitions from an active connection state to a power save state. Establishing a basic connection from a device to a wireless base station consumes resources, and the modem's power cycling can impact network performance. The modem is used to communicate data for Internet service activities between the device and at least one WWAN.A hardware component in the device used to establish data communications over cellular or other wide-area wireless networks.

Litigation Cases New

US Latest litigation cases involving this patent.

Case NumberFiling DateTitle
4:25-cv-09558Nov 5, 2025Google LLC v. Headwater Research LLC
3:25-cv-07591Sep 5, 2025Apple Inc v. Headwater Research LLC
5:25-cv-07453Sep 3, 2025Google LLC v. Headwater Research LLC

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US9198076

Application Number
US14688725A
Filing Date
Apr 16, 2015
Publication Date
Nov 24, 2015
External Links
Slate, USPTO , Google Patents