Abstract:
A method of providing content notifications to devices in a wireless communication system includes obtaining notification information comprising an identifier that defines a subset of a plurality of devices on a network configured to be responsive to content notifications; generating a notification message based on the obtained notification information to cause the subset of the plurality of devices to retrieve content from a network; and broadcasting the notification message over the network to the plurality of devices. The method also includes receiving content notifications in a wireless communication system, including receiving, in a wireless network, a notification message comprising an identifier that defines a subset of a plurality of devices on a network configured to be responsive to content notifications; and retrieving content from a network in response to being one of the subset of the plurality of devices as defined by the identifier of the received notification message.
Abstract:
This disclosure relates to reducing battery usage in handheld communication devices due to operation of variable managed features, such as a location determination feature and other features that consume variable amounts of time and power. The techniques of this disclosure include dynamically managing a power budget allocated to one or more variable managed features of the handheld communication device based on power consumption over time by the variable managed features. More specifically, the techniques include, for each variable managed feature, recalculating a frequency for performing power events based on an amount of remaining power after one or more power events. The techniques also include reallocating the power budget to the one or more variable managed features based on an amount of remaining power after one or more power events of the variable managed features, a pre-determined period of time, or reaching a threshold level of power consumption jitter.
Abstract:
A method for determining a height (i.e., elevation above ground level) at which a communication device having an electronic processor and a sensor is located may include obtaining a reference height of a first location, the reference height being a known height relative to ground level, the reference height having a corresponding reference pressure; obtaining, with the sensor, a pressure measurement at a second location; and calculating, with the electronic processor, a height at the second location based on the pressure measurement, the reference height, and the reference pressure. The height may also be based on temperature data, location data, motion data, and/or the like.
Abstract:
Systems and methods are described for providing content using distributed broadcast access points that include wide area broadcast interfaces for receiving content and local and/or personal area network interfaces for communicating content to client devices. In an embodiment, a system transmits usage logging notifications to one or more broadcast access points. The broadcast access points log usage data regarding the usage of the broadcast access points by client devices and/or content accessed via the broadcast access points. The logged data is then optionally used to customize one or more channels of content. Different broadcast access points may have access to different channels of content. A given channel of content optionally includes content aggregated from a plurality of different sources.
Abstract:
A radio frequency identification (RFID) device and method for controlling power supply are provided. The RFID device controls power supply to its elements based on its connection with a host and its operation mode, thereby reducing power consumption.
Abstract:
Methods and apparatus for conditional access of non real-time (NRT) content in a distribution system. A method includes encrypting NRT content with a control word (CW) to generate encrypted NRT content, providing the CW to entitlement control message (ECM) generators, receiving ECMs from the ECM generators, wherein each ECM comprises a unique encryption of the CW to provide conditional access to the CW, and providing the encrypted NRT content and the ECMs for transmission over a distribution network. An apparatus includes a synchronizer configured to provide a CW to ECM generators and receive ECMs from the ECM generators, wherein each ECM comprises a unique encryption of the CW to provide conditional access to the CW, and a management module configured to encrypt the NRT content with the CW to generate encrypted NRT content and provide the encrypted NRT content and the ECMs for transmission over the distribution network.
Abstract:
Methods and apparatus to reduce channel switching time. A method for channel switching includes bundling entitlement control messages (ECMs) to generate bundled ECMs that comprise decryption keys associated with a first content channel and one or more additional content channels, respectively, and transmitting the bundled ECMs with the first content channel. An apparatus for channel switching includes key acquisition logic configured to receive bundled ECMs that comprise decryption keys associated with a first content channel and one or more additional content channels, respectively, processing logic configured to receive a request to render a second content channel that is part of the one or more additional content channels, and decryption logic configured to utilize a selected decryption key obtained from the bundled ECMs to decrypt the second content channel.
Abstract:
A novel power conservation scheme is provided for conserving power in a wireless client terminal with an established communication session. While in a connected mode, the client terminal may receive data for the communication session via a data channel from an access point. During periods of inactivity over the data channel, the client terminal may switch to a lowered power mode, where the client terminal discontinuously monitors a control channel and does not monitor the data channel. The access point is informed of the operating mode of the client terminal. If a data resume indicator is received over the control channel, the client terminal switches back to the connected mode and resumes the communication session by receiving additional data over the data channel.
Abstract:
Various arrangements for managing wireless network communication are described. Two cells using different radio access technologies (RATs), such as a 3G cell and a 4G cell, may provide overlapping coverage. A first cell using a first RAT, under certain circumstances, may be permitted to enter a powered down state such that less power is consumed. User equipment may communicate with the cell using the second RAT as the preferred network and only communicate with the cell using the first RAT when a service available through the first RAT but not the second RAT has been requested. Upon a request from the second cell, the first cell may enter a powered up state.
Abstract:
Systems, methods, and devices are described for supporting macrocell-to-femtocell hand-ins of active macro communications for mobile devices. An out-of-band (OOB) link is used to detect that a mobile device is in proximity of a femtocell. Having detected the mobile device in proximity to the femtocell, an OOB proximity detection is communicated to a femtocell gateway disposed in a core network in communication with the macro network to effectively pre-register the mobile device with the femto-convergence system. When the femtocell gateway receives a handover request from the macro network implicating the pre-registered mobile device, it is able to reliably determine the appropriate target femtocell to use for the hand-in according to the pre-registration, even where identification of the appropriate target femtocell would otherwise be unreliable. Some embodiments may also handling registering the mobile device after a handover request has occurred, including tiered approaches.