Signaling over cellular networks to reduce the Wi-Fi energy consumption of mobile devices

摘要

Techniques for increasing the battery life on a mobile device by decreasing the energy consumption of the mobile device's wireless fidelity (Wi-Fi) interface are described. In one embodiment, the mobile device's Wi-Fi interface is automatically disabled when the device is not engaged. When the device receives a wake up call from a server via its Cellular interface, the Wi-Fi interface is enabled if the device answers the wake up call and the Wi-Fi interface is available. Using its Wi-Fi interface, the mobile device then connects to an IP-based network via a Wi-Fi access point.

主权项

1. A mobile device comprising:
a first wireless interface; a second wireless interface; one or more processors; one or more mobile device applications executable by the one or more processors to:
set to a first power state the first wireless interface on the mobile device when the mobile device is not engaged in communication across the first wireless interface;set to a second power state the first wireless interface responsive to receiving a wake up signal via the second wireless interface, the wake up signal being received from a server device communicatively coupled with the mobile device, the wake up signal including an identification (ID) that allows the mobile device to identify the wake up signal as having been sent by the server device, the ID number comprising a number, at least a portion of which is formatted to avoid collisions on the second network, the first power state being a lower power state than the second power state; andreceive data via the first wireless interface after setting to a second power state the first wireless interface responsive to the wake up signal, the data received via the first wireless interface being separate from the wake up signal.