Abstract: A network system includes a wireless network device, a network control device, and a first controller. The wireless network device includes an RF unit for transmitting/receiving frames and a first connection interface unit. The network control device includes a second connection interface unit, wherein the second connection interface unit is coupled to the first connection interface unit via a transmission connection, in order to perform data transmission with the first connection interface unit. When there is no data transmitted via the transmission connection, the first controller turns off at least one of power supplies of the first connection interface unit and the second connection interface unit. The first controller may be disposed in the network control device or the wireless network device.

Abstract: Various embodiments provide an apparatus and method for managing packet routing through internally-powered network devices in wireless sensor networks. An example embodiment includes a hybrid network having an externally-powered node and an internally-powered node, the method includes configuring a role that the internally-powered node will take during an operations phase of the hybrid network, the role including whether the internally-powered node will act as a router or a non-router; demoting the internally-powered node to a non-router role if the internally-powered node is not needed for routing; and promoting the internally-powered node to a router role if the internally-powered node is needed for routing.

Abstract: Some embodiments of the invention include an apparatus and method for dynamically choosing an optimum power state. In some embodiments, the optimum power state may be determined from historical information about the various power states that any of the embodiments of the apparatus or a system equipped with embodiments of the apparatus or operating embodiments of the method may encounter. Some embodiments may generate registers to maintain information regarding the various power states. In some embodiments, power management logic may determine the optimum power state based upon this information. Other embodiments are described.

Abstract: Disclosed are apparatus and methods for control of sleep modes in a transceiver or receiver. In particular, a transceiver is disclosed including a processor configured to determine timing information concerning sleep periods for at least a portion of components within the transceiver. The transceiver also includes a sleep control logic coupled to the processor to receive information concerning sleep periods from the processor and configured to effect shutting down of the at least a portion of the components of the transceiver during power reduction periods independent of the processor.

Abstract: If a handoff by a mobile station currently associated with a particular access point is probable, then the particular access point sends an activation alert to one or more other access points. An access point receiving the activation alert that is in a low-power state enters a higher-power state. An access point receiving the activation alert that is in a higher-power state, remains in that higher-power state.

Abstract: A mobile communication device enables improved connectivity and power management. The device includes a first wireless network interface configured for connection to a first network and a second wireless network interface configured for connection to a second network. The first interface has an active mode of operation and a sleep mode. The device places the first interface in the sleep mode when not needed for communications. An external system such as a messaging server calls the device when it is unable to access the device through the first interface. The second network, which can be a cellular network, handles the call request and transmits a ringing signal to the second interface of the device. A notification handler, upon receipt of the ringing signal, wakes the first interface, permitting normal communications through the first interface. Power management logic can be more pro-active in placing the first interface into the sleep mode.

Abstract: A method and apparatus for reducing power consumption of a portable electronic device, such as a smartphone, other mobile phones, or other portable devices when in sleep mode. A small software agent, or a low power mode core, operates so that, while the electronic device is in sleep mode, the low power mode core may be kept alive. When implemented in a smartphone, for example, the low power mode core may react to an incoming call so that at least part of the external memory of the smartphone may be powered down. When there is an incoming call, the low power mode core may acknowledge the call and provide a user interface (UI) for answering the call before the operating system is resumed, so as to keep the same or similar phone usage experience as when the operating system is processing the incoming call. At the same time, the low power mode core may wake up the operating system. The same approach is applicable in monitoring devices, where the entire device need not be running.

Abstract: Aspects relate to temporarily disabling a message or a set of messages based on the detection that an uplink transmission power is reaching maximum power or is at maximum power. The detection can be based on observing that one or more uplink transmissions are near, or at, the maximum power. The message or set of messages that are disabled can be a non-call critical message(s), such as a non-signaling radio bearer related message(s). Disabling the message or set of messages can conserve resources, which can be utilized for call critical messages, which can include signaling radio bearer related messages, call maintenance messages, voice communications, and so forth. Disabling the message or set of messages can also mitigate the chances of a call being disconnected due to power demands that exceed the maximum power available.

Abstract: A method (200) and device (300) for saving energy in a wireless communication device configured to maintain a persistent communication session over a wireless network with an application server. The method (200) can include: opening (210) a persistent communication session with an application server via a cellular network; measuring (220) a round trip time (RTT) from sending a message to the application server to receiving an acknowledgement message from the application server; and automatically transitioning (230) the device from a first operating state to a second operating state after an amount of time in the absence of subsequent data traffic exceeding a predetermined threshold, wherein power consumption associated with the second operating state is less than power consumption associated with the first operating state, and the predetermined threshold is a function of the measured round trip time.

Abstract: Improved battery life for mobile wireless devices communicating using standard network protocols is obtained by measuring an energy profile of the transmitter circuitry with respect to transmission rate and transmission energy and adjusting operating conditions according to measured or deduced error rates. Additional energy savings are obtained reducing the total number of bits transmitted using payload compression and header truncation making use of application layer communications between the remote device and a power-unconstrained proxy device.

Abstract: A control device includes a selector and a controller. The selector is to select power signals to be supplied to respective power domains of an electronic product. The controller is to compare a level of a first power signal selected by the selector to a first target level, and to generate a first setting signal to reduce a difference between the first power signal level and the first target level. The controller, selector, and power domains may be located on a same chip different from a power manager chip from which the power signals are generated or otherwise output.

Abstract: A method for controlling, a power saving mode of a mobile station (MS) in a mobile communication system is disclosed. The method differently defines operations of power saving modes of individual cases in association with message traffic distinguished from user traffic of a service, so that it can effectively reduce power consumption of the mobile station (MS). Firstly, the listening window of the power saving mode is used. Secondly, a method for transmitting a request message for pending the sleep mode is used. If the sleep-mode pending is requested, the sleep-mode resume message may be used in the case of a reactivation, or the reactivation can be automatically performed if a current time reaches a predetermined time.

Abstract: A high efficiency transmitter is disclosed. In an exemplary embodiment, a transmitter is provided that includes a first transmission path configured to receive a baseband signal and generate a first RF output when output power is in a first output power range, and a second transmission path configured to receive the baseband signal and generate a second RF output when the output power is in a second output power range.

Abstract: Power management methods are provided for projecting the likelihood of forthcoming power outage at one or more mobile radio base sites and for mitigating the effects of such a projected power outage.

Abstract: A network-centric, power management system and method is disclosed for monitoring and controlling device nodes attached to a network. The monitoring and controlling includes collecting and processing information available on the network about the device nodes and using the collected information to manage power on the device nodes.

Abstract: A touch sensor detects contact input by a finger or the like, and includes two sensor modules. Each of the sensor modules has many sensors arrayed linearly. The operation state of each sensor module is set under the control of a control unit. When a user touches a sensor of the sensor module, the control unit energizes only the sensor which the user has touched and neighboring sensors to detect an input from the user, and does not energize the remaining sensors on the same sensor module.

Abstract: A host assembly is communicatively coupled to a wireless device assembly via a first interface and via a second interface. A first signal is received at the wireless device assembly from the host assembly. The first signal indicates a request for the wireless device assembly to enter a host sleep mode of operation. In response to receiving the first signal, the wireless device assembly transmits a third signal to the host assembly, wherein the third signal indicates entry into the host sleep mode of operation. Subsequent to transmitting the third signal to the host assembly via the first interface, the wireless device assembly enters into the host sleep mode of operation. While in the host sleep mode of operation, the wireless device assembly transmits, via the second interface, the second signal, and, after transmitting the second signal to the host assembly, exits the host sleep mode of operation.

Abstract: A wireless communication entity schedulable in a wireless communication network include a radio receiver that receives radio resource assignment information including a bandwidth allocation, a controller communicably coupled to the power amplifier, wherein the controller varies an operational maximum power level of the schedulable wireless communication entity based on whether the schedulable wireless communication entity is communicating time-critical traffic or non-time-critical traffic, and wherein the operational maximum power level limits an instantaneous power at which the schedulable wireless communication entity may transmit on the radio resource assigned.

Abstract: The invention allows improving the control of transmission of the silence detection (SID) frames to prevent annoying effects in the music sent to the calling terminal instead of ringback tones. This can be achieved by disabling the discontinuous transmission functionality during the period of call establishment. There are many different ways to accomplish the idea behind the present invention.

Abstract: A power management scheme for a wireless communications device processor substantially implemented on a single CMOS integrated circuit is described. By incorporating controls for sleep and wake-up mode transitions in the processor's control logic, improved power savings with reduced latency is provided, obviating the need for hardware-focused solutions with elaborate signaling mechanisms. A fully integrated power management with staged wake-up operations controlled by the MAC solution consumes less power than the conventional wireless LAN solutions in standby mode.

Abstract: A wireless communication entity schedulable in a wireless communication network includes a radio receiver that receives radio resource assignment information including a bandwidth allocation, and a controller communicably coupled to the power amplifier, wherein the controller varies an operational maximum power level of the schedulable wireless communication entity in accordance with a protocol state governing the schedulable wireless communication entity, wherein the operational maximum power level limits an instantaneous power at which the schedulable wireless communication entity may transmit on the radio resource assigned.

Abstract: A transmission power control device is able to capture the serving sector measurement information of a mobile station with respect to a serving sector and the neighboring sector measurement information of the mobile station with respect to a neighboring sector. The transmission power control device selects a power control mode based on a decision as to whether or not the neighboring sector measurement information has been captured in an applied time in the past. The power level of a mobile station is determined based on the selected power control mode. Thus, it is possible to reduce inter-cell interference and inter-sector interference because the power level of a mobile station is determined in light of communication environments, even though the mobile station is connected with a base station in an LTE-based communication system which cannot always detect the neighboring sector measurement information.

Abstract: A wireless communication apparatus that transmits and receives an orthogonal frequency division multiplexing signal to communicate with a communication counterpart, the wireless communication apparatus including measurement means for measuring the signal level of each subcarrier of the reception signal received from the communication counterpart, calculation means for calculating a predicted signal level of each subcarrier when the communication counterpart receives the signal based on the signal level of each subcarrier of the reception signal measured by the measurement means and calculating an increase/decrease rate of transmission power for each subcarrier such that the average amount of limited mutual information limited by the modulation method for the signal is maximized based on the predicted signal level, and transmission parameter control means for controlling transmission parameters including the increase/decrease rate of transmission power for each subcarrier calculated by the calculation means.

Abstract: A field device for use in an industrial process control or monitoring system includes terminals configured to connect to a two-wire process control loop configured to carry data and to provide power. In one embodiment, RF circuitry in the field device is configured for radio frequency communication having variable power consumption. In another embodiment, the RF circuitry is coupled to the field device through a separate digital communication bus. A method of modulating the power of RF communication based upon a process communication signal is also provided.

Abstract: Predicting battery drain time that would be caused by a new application being considered for a smartphone. The battery drain time prediction is based on the type of smartphone and type of battery, the battery age, and hardware subunit usage levels. The system may provide a watchdog service for monitoring and storing data of user's smartphone which may then be used to create a user profile. Upon receiving a request for a battery drain time prediction, the system matches the profile of the user's smartphone with an existing profile in the repository having pre-installation and post-installation data for the application being considered. The matching user profile can be used to predict battery drain time that will be caused by the new application.

Abstract: The present invention provides for a method of controlling discontinuous reception cycles in a mobile radio communications device, and discontinuous transmission cycles in a mobile radio communication network device, and comprising the steps of monitoring the number of consecutive discontinuous reception and transmission periods within which no data is received, monitoring the number of consecutive discontinuous reception and transmission periods within which data is received, and varying the said discontinuous reception cycle responsive to the result of said monitoring.

Abstract: In a wireless communication device, a geographic location system determines a geographic location of the wireless communication device. A power monitoring system determines battery power status for the wireless communication device. A transmit diversity control system determines a transmit diversity instruction for the geographic location. The transmit diversity control system processes the transmit diversity instruction and the battery power status to select a transmit diversity mode (on/off). The transmit diversity control system controls a plurality of power amplifiers to implement the selected transmit diversity mode.

Abstract: A network device includes a status displaying module, a network module, a processor, a power providing module, and a power saving circuit. The network module implements network functions of the network device. The status displaying module receives displaying signals from the network module. The processor directs the network module to implement the network functions. The power providing module provides power for the processor, the network module, and the status displaying module. The power saving circuit couples the displaying signals to obtain coupled signals and controls modes of the processor and the power providing module according to presence of the coupled signals.

Abstract: A mobile communication terminal in accordance with the present invention includes a first wireless communication unit 102 corresponding to a first wireless communication system, an interface 107 detachably connecting an external apparatus 200, a determination unit 111 for determining whether or not the external apparatus 200 connected to the interface 107 corresponds to a second wireless communication system and is a second wireless communication unit 202 consuming less power than the first wireless communication unit 102, a battery voltage detection unit 104 for detecting battery voltage of a power supply unit 103 containing a battery and a control unit 111 for controlling the first wireless communication unit 102 to be in a disabled state when the first wireless communication unit 102 is communicating and the battery voltage detected by the battery voltage detection unit 104 is equal to or less than the predetermined value in the case where connection of the second wireless communication unit 202 is determi

Abstract: A method and system for determining standby time for a mobile station uses a battery simulator, a base station emulator, a computer to control the test equipment and MSUT for testing a mobile station. The computer includes a module for determining a radio off battery voltage, a module for deriving a battery capacity in dependence upon the radio off battery voltage, a module for measuring battery capacity usage in a predetermined time while the mobile station is in standby mode and a module for determining a standby time for the mobile station in dependence upon the battery capacity and the battery capacity usage, where the predetermined time is less than the standby time.

Abstract: A method, information processing system, and wireless communication system for dynamically assigning a communication channel to a wireless device. A request for a communication channel from a wireless device (108) is received. At least a current-drain profile (120) associated with the wireless device (108) is analyzed. The current-drain profile (120) indicates power consumption associated with the wireless device (108) for a plurality of channel frequency bands. A plurality of communication channels is analyzed with respect to the current-drain profile (120). A communication channel is selected from the plurality of communicating channels in response to the analyzing at least the current-drain profile (120). A communication channel assignment comprising the communication channel that has been selected is transmitted to the wireless device (108) in response to the selecting.

Abstract: An apparatus connected to a network via a network interface device and capable of executing encrypted communication with an external device on the network requests that a first algorithm to be used in the encrypted communication with the external device is changed to a second algorithm included in the network interface device when the apparatus detects that a condition for shifting to a power saving mode, in which power consumption is smaller than that in a normal power mode, is satisfied while the apparatus is operated in the normal power mode.

Abstract: Methods and systems for adjusting a transmit power of a forward link or reverse link signal make use of variable adjustment parameters. The wireless signal is received to obtain a received signal. An observed signal-to-noise ratio (SNR) and an observed frame error rate (FER) for the received signal are determined. In an outer loop process, an adjustment increment is selected based on how much the observed FER differs from the target FER, and the target SNR is adjusted by the adjustment increment. In an inner loop process, a power adjustment command is selected based on a comparison between the observed SNR and a target SNR. The power adjustment command instructs the transmitter of the wireless signal to either increase or decrease the transmit power of the wireless signal. The power adjustment increment may also depend on the observed FER.

Abstract: A method and apparatus for controlling power of a transmitter in a mesh network. A controller, if it sets a reference power to one of a first measured transmission power and a maximum power, compares the reference power with a first power in level, and compares the first power with a second power in level. A cumulation factor calculator calculates a cumulation factor by comparing the first power with the second power. A reference power setter sets the reference power according to a scope to which a value obtained by adding a reference power to a sum of the calculated cumulation factors belongs. A power controller controls transmission power according to the set reference power.

Abstract: A mobile terminal and method of controlling a driving voltage of a power amplifier therein are provided. The present invention includes a power amplifier module having a plurality of operative modes, the power amplifier module configured to amplify a power strength of an RF signal, a modem configured to deliver the RF signal to the power amplifier module, and to control the operative modes of the power amplifier module, a power detecting unit configured to output a reference voltage by detecting the power strength of the RF signal outputted from the power amplifier module, and a DC/DC converter configured to supply a driving voltage to the power amplifier module by adjusting a detected power value according to a gain corresponding to each of the operative modes of the power amplifier module.

Abstract: A communication device is provided and includes: an electromagnetic-wave generating means for outputting an electromagnetic wave; and a transmitting/receiving means for transmitting data by modulating the electromagnetic wave in accordance with data as well as receiving data transmitted from the other device by demodulating the electromagnetic wave outputted by the electromagnetic-wave generating means or the electromagnetic wave outputted by the other device as the other party of communication, wherein the transmitting/receiving means transmits attribute information indicating communication ability of the device itself as well as receives attribute information indicating communication ability of the other device as the data, and the electromagnetic-wave generating means turns off the output of the electromagnetic wave for a given period of time after the transmission of the data based on the attribute information.

Abstract: Provided is a method and system for controlling current characteristics in a transceiver having a transmitter. The transmitter includes a plurality of current cells. Each cell is configurable for operating in different modes. The method includes determining a first probability associated with transmitting data at a particular symbolic level and determining a second probability associated with each cell being used during a transmission at the particular symbolic level. Next, one of the modes for each cell is selected in accordance with anticipated performance requirements. An average current of the transmitter is then calculated based upon the determined first and second probabilities and the selected modes.

Abstract: A system and method for maximizing the standby time of mobile communication devices that have WiFi or other high energy-consuming network interfaces, by predicting in real time actionable silent periods (ASPs) of the interface and shutting the interface down during these ASPs. Standby times are significantly increased, resulting in longer periods of operation before battery charging is required, while keeping minimal the probabilities of missing incoming data packets when the interface is turned off.

Abstract: Embodiments include methods of activity control in which a time of initiation of an active period of a discontinuous reception (DRX) cycle is based on a value calculated with respect to a wireless signal received during an active period of a previous DRX cycle.

Abstract: Systems, methods and interfaces are disclosed for managing communications associated with a mobile communication device. Mobile communication devices process environmental inputs and transmit mobile communication device context information to a communication management system. The context information may, for example, reflect the motion and/or geographic location of the mobile device, and may reflect the risk associated with using the device to handle a call or other communications session. The communication management system uses the context information, optionally in combination with communication device profiles, to determine how to manage incoming and/or ongoing calls or other communication sessions. Mobile device users may also be inhibited from initiating communication sessions.

Abstract: A method of verifying availability of a mobile subscriber station that is in an idle-mode includes requesting to a base station by the mobile subscriber station to enter an idle-mode, wherein the base station is associated with a paging group comprising a plurality of base stations, and receiving from the base station an idle-mode response command to enter the idle-mode. The method also includes receiving from the base station a paging command comprising an action code associated with performing ranging while the mobile subscriber station is in the idle-mode to verify availability of the mobile subscriber station with respect to the base station, wherein if the ranging is not successfully performed with the base station during a predetermined period, the base station continues to transmit the paging command until a paging retrial count reaches a predetermined threshold.

Abstract: In accordance with some embodiments of the present disclosure, a circuit comprises a balun configured to receive a radio frequency (RF) signal at a first input port and a second input port of an input coil. The balun is further configured to output the RF signal at an output coil communicatively coupled to the input coil. The circuit also comprises a supply voltage selector circuit coupled to the input coil and configured to adjust a bias voltage at the input coil according to a power level of the RF signal received at the input coil.

Abstract: A method, system, and device provide power-efficient communications within the context of available power. Transmission and receipt data rates are scalable in accordance with output power available from a power source. Data is transmitted at a data rate determined, at least in part, by the available output power.

Abstract: A radio frequency power amplifier (RF PA) apparatus includes an RF PA and a waveform converter. The waveform converter is configured to receive a sinusoidal RF signal and generate a nonsinusoidal RF signal, which is used to drive an active device (e.g., a field effect transistor (FET) or bipolar junction transistor (BJT)) of the RF PA. The nonsinusoidal RF signal, which may comprise a square wave or a substantially-square wave signal, has signal characteristics that result in less leakage through the active device's input-output parasitic capacitance, compared to the leakage that would result if the sinusoidal RF signal was used to drive the active device. The leakage control methods and apparatus of the present invention may be advantageously employed in a variety of applications including, for example, RF polar transmitters.

Abstract: A dummy circuit is provided to which a bias circuit of an low noise amplifier (LNA) can be coupled to during power down of the LNA. The dummy circuit maintains the bias circuit at an approximately normal operating state to reduce wake up time of the LNA.

Abstract: A technique for controlling the amount of power consumed by access points (APs) of a wireless network involves implementing power-saving APs (PSAPs). It would be desirable for the PSAPs to be in sleep mode during periods of low activity, and at full power during periods of high activity. To that end, a PSAP agitation (PSAPA) engine can be implemented to agitate PSAPs in response to increases in wireless activity, and put PSAPs to sleep in response to decreases in wireless activity.

Abstract: A transmit amplifier stage operable to amplify a transmit signal comprises power amplifiers and switches. The power amplifiers include at least one fractional power amplifier operable to provide fractional power to amplify the transmit signal, where the fractional power is a fraction of the full power. A switch has a plurality of positions, where a position directs the transmit signal to a selected power amplifier.

Abstract: The use of a digital camera in communication with a mobile device to determine the intensity of ambient light conditions is described herein. In one example, the digital camera receives light energy representing ambient light. The intensity of the ambient light is determined and, based upon a comparison of that intensity to a setpoint, the mobile device is reconfigured. In another example, a mobile device is described that uses a digital camera to measure ambient light conditions. The mobile device can be configured in various ways based upon a determination of the intensity and/or wavelengths of the ambient light.

Abstract: A method for communicating data using a “burst protocol” includes enabling power to transmitters and receivers when needed to balance power consumption with latency and unscheduled communication. A transmitter transmits a plurality of packets indicative of substantially the same payload. Power then may be disabled to the transmitter. A first predetermined time is determined to enable a receiver. A second predetermined time is determined to disable the receiver. Power then may be enabled to the receiver based on the first predetermined time. The payload is output in response to receiving one or more of the plurality of packets. Power to the receiver is disabled based on the second predetermined time.

Abstract: The invention relates to systems and or methodologies for intelligent and adaptive power management in mobile devices. A peripheral power management component can set peripheral devices to active or inactive based on one or more schemas. The schemas can be predetermined or generated by the peripheral power management component. In addition, an adaptive component can modify the schemas to reflect actual usage or changing trends for each peripheral device.