Enhanced power management in communication device

摘要

Representative implementations of devices and techniques provide enhanced power management in a communication device. In one implementation, an efficient processor, such as a baseband processor, is at least partially responsible for determining if a Wi-Fi transceiver is to be enabled. In one example of the implementation, the efficient processor leverages location based information, during regular paging intervals, in determining if a Wi-Fi transceiver is to be enabled. Such location based information may include the use of radio-location signal measurements from base stations/cell towers, using GPS/A-GPS, GLONAS, or using proximity to access points by way of NFC or Bluetooth transceivers.

主权项

1. User Equipment (UE) comprising:
a Wireless Local Area Network (WLAN) transceiver for communicating with WLANs; a cellular network transceiver configured receive access point location information from a cellular network during a regular paging interval, the access point location information indicating locations of access points of the WLANs; an applications processor to run one or more applications on the UE, the applications processor to actively assist the WLAN transceiver during scanning operations when the WLAN transceiver is active; and a communications processor for baseband processing, the communications processor enabled in a powered on state during paging intervals and configured to be in a low-power state between paging intervals, the communications processor, when enabled, is to determine whether an access point is in communication range of the UE and activate the WLAN transceiver based on the access point location information and a current location of the UE, wherein determination of whether an access point is in communication range of the UE is made by the communications processor when enabled and while the WLAN transceiver is inactive and not receiving WLAN signals, wherein the communications processor, when enabled, activates the WLAN transceiver to perform a scan when an access point is determined to be in communication range of the UE.